remove the OSS trident driver
authorAdrian Bunk <bunk@kernel.org>
Thu, 24 Jul 2008 04:29:13 +0000 (21:29 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Jul 2008 17:47:27 +0000 (10:47 -0700)
SOUND_TRIDENT was the last PCI OSS driver, and since there's already an
ALSA driver for the same hardware we can remove it.

[muli@il.ibm.com: update CREDITS]
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
CREDITS
MAINTAINERS
sound/oss/Kconfig
sound/oss/Makefile
sound/oss/trident.c [deleted file]
sound/oss/trident.h [deleted file]

diff --git a/CREDITS b/CREDITS
index 077b147..c62dcb3 100644 (file)
--- a/CREDITS
+++ b/CREDITS
@@ -317,6 +317,14 @@ S: 2322 37th Ave SW
 S: Seattle, Washington 98126-2010
 S: USA
 
+N: Muli Ben-Yehuda
+E: mulix@mulix.org
+E: muli@il.ibm.com
+W: http://www.mulix.org
+D: trident OSS sound driver, x86-64 dma-ops and Calgary IOMMU,
+D: KVM and Xen bits and other misc. hackery.
+S: Haifa, Israel
+
 N: Johannes Berg
 E: johannes@sipsolutions.net
 W: http://johannes.sipsolutions.net/
index 7e5c7b0..5ecb97e 100644 (file)
@@ -4080,12 +4080,6 @@ W:       http://www.prosec.rub.de/tpm/
 L:     tpmdd-devel@lists.sourceforge.net
 S:     Maintained
 
-TRIDENT 4DWAVE/SIS 7018 PCI AUDIO CORE
-P:     Muli Ben-Yehuda
-M:     mulix@mulix.org
-L:     linux-kernel@vger.kernel.org
-S:     Maintained
-
 TRIVIAL PATCHES
 P:     Jesper Juhl
 M:     trivial@kernel.org
index 3394013..d4fafb6 100644 (file)
@@ -35,47 +35,6 @@ config SOUND_AU1550_AC97
        tristate "Au1550/Au1200 AC97 Sound"
        depends on SOC_AU1550 || SOC_AU1200
 
-config SOUND_TRIDENT
-       tristate "Trident 4DWave DX/NX, SiS 7018 or ALi 5451 PCI Audio Core"
-       depends on PCI
-       ---help---
-         Say Y or M if you have a PCI sound card utilizing the Trident
-         4DWave-DX/NX chipset or your mother board chipset has SiS 7018
-         or ALi 5451 built-in. The SiS 7018 PCI Audio Core is embedded
-         in SiS960 Super South Bridge and SiS540/630 Single Chipset.
-         The ALi 5451 PCI Audio Core is embedded in ALi M1535, M1535D,
-         M1535+ or M1535D+ South Bridge.
-
-         Use lspci -n to find out if your sound card or chipset uses
-         Trident 4DWave or SiS 7018. PCI ID 1023:2000 or 1023:2001 stands
-         for Trident 4Dwave. PCI ID 1039:7018 stands for SiS7018. PCI ID
-         10B9:5451 stands for ALi5451.
-
-         This driver supports S/PDIF in/out (record/playback) for ALi 5451
-         embedded in ALi M1535+ and M1535D+. Note that they aren't all
-         enabled by default; you can enable them by saying Y to "/proc file
-         system support" and "Sysctl support", and after the /proc file
-         system has been mounted, executing the command
-
-               command                 what is enabled
-
-         echo 0>/proc/ALi5451  pcm out is also set to S/PDIF out. (Default).
-
-         echo 1>/proc/ALi5451  use S/PDIF out to output pcm data.
-
-         echo 2>/proc/ALi5451  use S/PDIF out to output non-pcm data.
-         (AC3...).
-
-         echo 3>/proc/ALi5451  record from Ac97 in(MIC, Line in...).
-         (Default).
-
-         echo 4>/proc/ALi5451  no matter Ac97 settings, record from S/PDIF
-         in.
-
-
-         This driver differs slightly from OSS/Free, so PLEASE READ the
-         comments at the top of <file:sound/oss/trident.c>.
-
 config SOUND_MSNDCLAS
        tristate "Support for Turtle Beach MultiSound Classic, Tahiti, Monterey"
        depends on (m || !STANDALONE) && ISA
index 1f86299..3a14147 100644 (file)
@@ -29,7 +29,6 @@ obj-$(CONFIG_SOUND_MSNDCLAS)  += msnd.o msnd_classic.o
 obj-$(CONFIG_SOUND_MSNDPIN)    += msnd.o msnd_pinnacle.o
 obj-$(CONFIG_SOUND_VWSND)      += vwsnd.o
 obj-$(CONFIG_SOUND_AU1550_AC97)        += au1550_ac97.o ac97_codec.o
-obj-$(CONFIG_SOUND_TRIDENT)    += trident.o ac97_codec.o
 obj-$(CONFIG_SOUND_BCM_CS4297A)        += swarm_cs4297a.o
 
 obj-$(CONFIG_SOUND_WM97XX)     += ac97_plugin_wm97xx.o
diff --git a/sound/oss/trident.c b/sound/oss/trident.c
deleted file mode 100644 (file)
index f43f91e..0000000
+++ /dev/null
@@ -1,4654 +0,0 @@
-/*
- *     OSS driver for Linux 2.[46].x for
- *
- *     Trident 4D-Wave
- *     SiS 7018
- *     ALi 5451
- *     Tvia/IGST CyberPro 5050
- *
- *     Driver: Alan Cox <alan@redhat.com>
- *
- *  Built from:
- *     Low level code: <audio@tridentmicro.com> from ALSA
- *     Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
- *     Extended by: Zach Brown <zab@redhat.com>
- *
- *  Hacked up by:
- *     Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *     Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support
- *     Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support
- *     Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support
- *     Peter W├Ąchtler <pwaechtler@loewe-komp.de> CyberPro5050 support
- *      Muli Ben-Yehuda <mulix@mulix.org>
- *
- *
- *     This program is free software; you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation; either version 2 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program; if not, write to the Free Software
- *     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *  History
- *  v0.14.10j
- *     January 3 2004 Eugene Teo <eugeneteo@eugeneteo.net>
- *     minor cleanup to use pr_debug instead of TRDBG since it is already
- *     defined in linux/kernel.h.
- *  v0.14.10i
- *      December 29 2003 Muli Ben-Yehuda <mulix@mulix.org>
- *      major cleanup for 2.6, fix a few error patch buglets
- *      with returning without properly cleaning up first,
- *      get rid of lock_kernel().
- *  v0.14.10h
- *     Sept 10 2002 Pascal Schmidt <der.eremit@email.de>
- *     added support for ALi 5451 joystick port
- *  v0.14.10g
- *     Sept 05 2002 Alan Cox <alan@redhat.com>
- *     adapt to new pci joystick attachment interface
- *  v0.14.10f
- *      July 24 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- *      patch from Eric Lemar (via Ian Soboroff): in suspend and resume,
- *      fix wrong cast from pci_dev* to struct trident_card*.
- *  v0.14.10e
- *      July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- *      rewrite the DMA buffer allocation/deallcoation functions, to make it
- *      modular and fix a bug where we would call free_pages on memory
- *      obtained with pci_alloc_consistent. Also remove unnecessary #ifdef
- *      CONFIG_PROC_FS and various other cleanups.
- *  v0.14.10d
- *      July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- *      made several printk(KERN_NOTICE...) into TRDBG(...), to avoid spamming
- *      my syslog with hundreds of messages.
- *  v0.14.10c
- *      July 16 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- *      Cleaned up Lei Hu's 0.4.10 driver to conform to Documentation/CodingStyle
- *      and the coding style used in the rest of the file.
- *  v0.14.10b
- *      June 23 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- *      add a missing unlock_set_fmt, remove a superflous lock/unlock pair
- *      with nothing in between.
- *  v0.14.10a
- *      June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- *      use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns
- *      per line, use 'do {} while (0)' in statement macros.
- *  v0.14.10
- *      June 6 2002 Lei Hu <Lei_hu@ali.com.tw>
- *      rewrite the part to read/write registers of audio codec for Ali5451
- *  v0.14.9e
- *      January 2 2002 Vojtech Pavlik <vojtech@ucw.cz> added gameport
- *      support to avoid resource conflict with pcigame.c
- *  v0.14.9d
- *     October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *     use set_current_state, properly release resources on failure in
- *     trident_probe, get rid of check_region
- *  v0.14.9c
- *     August 10 2001 Peter W├Ąchtler <pwaechtler@loewe-komp.de>
- *     added support for Tvia (formerly Integraphics/IGST) CyberPro5050
- *     this chip is often found in settop boxes (combined video+audio)
- *  v0.14.9b
- *     Switch to static inline not extern inline (gcc 3)
- *  v0.14.9a
- *     Aug 6 2001 Alan Cox
- *     0.14.9 crashed on rmmod due to a timer/bh left running. Simplified
- *     the existing logic (the BH doesn't help as ac97 is lock_irqsave)
- *     and used del_timer_sync to clean up
- *     Fixed a problem where the ALi change broke my generic card
- *  v0.14.9
- *     Jul 10 2001 Matt Wu
- *     Add H/W Volume Control
- *  v0.14.8a
- *     July 7 2001 Alan Cox
- *     Moved Matt Wu's ac97 register cache into the card structure
- *  v0.14.8
- *     Apr 30 2001 Matt Wu
- *     Set EBUF1 and EBUF2 to still mode
- *     Add dc97/ac97 reset function
- *     Fix power management: ali_restore_regs
- *  unreleased
- *     Mar 09 2001 Matt Wu
- *     Add cache for ac97 access
- *  v0.14.7
- *     Feb 06 2001 Matt Wu
- *     Fix ac97 initialization
- *     Fix bug: an extra tail will be played when playing
- *     Jan 05 2001 Matt Wu
- *     Implement multi-channels and S/PDIF in support for ALi 1535+
- *  v0.14.6
- *     Nov 1 2000 Ching-Ling Lee
- *     Fix the bug of memory leak when switching 5.1-channels to 2 channels.
- *     Add lock protection into dynamic changing format of data.
- *     Oct 18 2000 Ching-Ling Lee
- *     5.1-channels support for ALi
- *     June 28 2000 Ching-Ling Lee
- *     S/PDIF out/in(playback/record) support for ALi 1535+, using /proc to be selected by user
- *     Simple Power Management support for ALi
- *  v0.14.5 May 23 2000 Ollie Lho
- *     Misc bug fix from the Net
- *  v0.14.4 May 20 2000 Aaron Holtzman
- *     Fix kfree'd memory access in release
- *     Fix race in open while looking for a free virtual channel slot
- *     remove open_wait wq (which appears to be unused)
- *  v0.14.3 May 10 2000 Ollie Lho
- *     fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU
- *  v0.14.2 Mar 29 2000 Ching-Ling Lee
- *     Add clear to silence advance in trident_update_ptr
- *     fix invalid data of the end of the sound
- *  v0.14.1 Mar 24 2000 Ching-Ling Lee
- *     ALi 5451 support added, playback and recording O.K.
- *     ALi 5451 originally developed and structured based on sonicvibes, and
- *     suggested to merge into this file by Alan Cox.
- *  v0.14 Mar 15 2000 Ollie Lho
- *     5.1 channel output support with channel binding. What's the Matrix ?
- *  v0.13.1 Mar 10 2000 Ollie Lho
- *     few minor bugs on dual codec support, needs more testing
- *  v0.13 Mar 03 2000 Ollie Lho
- *     new pci_* for 2.4 kernel, back ported to 2.2
- *  v0.12 Feb 23 2000 Ollie Lho
- *     Preliminary Recording support
- *  v0.11.2 Feb 19 2000 Ollie Lho
- *     removed incomplete full-dulplex support
- *  v0.11.1 Jan 28 2000 Ollie Lho
- *     small bug in setting sample rate for 4d-nx (reported by Aaron)
- *  v0.11 Jan 27 2000 Ollie Lho
- *     DMA bug, scheduler latency, second try
- *  v0.10 Jan 24 2000 Ollie Lho
- *     DMA bug fixed, found kernel scheduling problem
- *  v0.09 Jan 20 2000 Ollie Lho
- *     Clean up of channel register access routine (prepare for channel binding)
- *  v0.08 Jan 14 2000 Ollie Lho
- *     Isolation of AC97 codec code
- *  v0.07 Jan 13 2000 Ollie Lho
- *     Get rid of ugly old low level access routines (e.g. CHRegs.lp****)
- *  v0.06 Jan 11 2000 Ollie Lho
- *     Preliminary support for dual (more ?) AC97 codecs
- *  v0.05 Jan 08 2000 Luca Montecchiani <m.luca@iname.com>
- *     adapt to 2.3.x new __setup/__init call
- *  v0.04 Dec 31 1999 Ollie Lho
- *     Multiple Open, using Middle Loop Interrupt to smooth playback
- *  v0.03 Dec 24 1999 Ollie Lho
- *     mem leak in prog_dmabuf and dealloc_dmabuf removed
- *  v0.02 Dec 15 1999 Ollie Lho
- *     SiS 7018 support added, playback O.K.
- *  v0.01 Alan Cox et. al.
- *     Initial Release in kernel 2.3.30, does not work
- *
- *  ToDo
- *     Clean up of low level channel register access code. (done)
- *     Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done)
- *     Dual AC97 codecs support (done)
- *     Recording support (done)
- *     Mmap support
- *     "Channel Binding" ioctl extension (done)
- *     new pci device driver interface for 2.4 kernel (done)
- *
- *     Lock order (high->low)
- *             lock    -       hardware lock
- *             open_mutex -    guard opens
- *             sem     -       guard dmabuf, write re-entry etc
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/sound.h>
-#include <linux/slab.h>
-#include <linux/soundcard.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/spinlock.h>
-#include <linux/ac97_codec.h>
-#include <linux/bitops.h>
-#include <linux/proc_fs.h>
-#include <linux/interrupt.h>
-#include <linux/pm.h>
-#include <linux/gameport.h>
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-#include <linux/mm.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
-#include <asm/hwrpb.h>
-#endif
-
-#include "trident.h"
-
-#define DRIVER_VERSION "0.14.10j-2.6"
-
-#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
-#define SUPPORT_JOYSTICK 1
-#endif
-
-/* magic numbers to protect our data structures */
-#define TRIDENT_CARD_MAGIC     0x5072696E      /* "Prin" */
-#define TRIDENT_STATE_MAGIC    0x63657373      /* "cess" */
-
-#define TRIDENT_DMA_MASK       0x3fffffff      /* DMA buffer mask for pci_alloc_consist */
-#define ALI_DMA_MASK           0x7fffffff      /* ALI Tridents have 31-bit DMA. Wow. */
-
-#define NR_HW_CH               32
-
-/* maximum number of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only
-   have 2 SDATA_IN lines (currently) */
-#define NR_AC97                2
-
-/* minor number of /dev/swmodem (temporary, experimental) */
-#define SND_DEV_SWMODEM        7
-
-static const unsigned ali_multi_channels_5_1[] = {
-       /*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL, */
-       ALI_CENTER_CHANNEL,
-       ALI_LEF_CHANNEL,
-       ALI_SURR_LEFT_CHANNEL,
-       ALI_SURR_RIGHT_CHANNEL
-};
-
-static const unsigned sample_size[] = { 1, 2, 2, 4 };
-static const unsigned sample_shift[] = { 0, 1, 1, 2 };
-
-static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %s\n";
-
-enum {
-       TRIDENT_4D_DX = 0,
-       TRIDENT_4D_NX,
-       SIS_7018,
-       ALI_5451,
-       CYBER5050
-};
-
-static char *card_names[] = {
-       "Trident 4DWave DX",
-       "Trident 4DWave NX",
-       "SiS 7018 PCI Audio",
-       "ALi Audio Accelerator",
-       "Tvia/IGST CyberPro 5050"
-};
-
-static struct pci_device_id trident_pci_tbl[] = {
-       {PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX),
-               PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, TRIDENT_4D_DX},
-       {PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX),
-               0, 0, TRIDENT_4D_NX},
-       {PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018), 0, 0, SIS_7018},
-       {PCI_DEVICE(PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451), 0, 0, ALI_5451},
-       {PCI_DEVICE(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050),
-               0, 0, CYBER5050},
-       {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, trident_pci_tbl);
-
-/* "software" or virtual channel, an instance of opened /dev/dsp */
-struct trident_state {
-       unsigned int magic;
-       struct trident_card *card;      /* Card info */
-
-       /* file mode */
-       mode_t open_mode;
-
-       /* virtual channel number */
-       int virt;
-
-       struct dmabuf {
-               /* wave sample stuff */
-               unsigned int rate;
-               unsigned char fmt, enable;
-
-               /* hardware channel */
-               struct trident_channel *channel;
-
-               /* OSS buffer management stuff */
-               void *rawbuf;
-               dma_addr_t dma_handle;
-               unsigned buforder;
-               unsigned numfrag;
-               unsigned fragshift;
-
-               /* our buffer acts like a circular ring */
-               unsigned hwptr; /* where dma last started, updated by update_ptr */
-               unsigned swptr; /* where driver last clear/filled, updated by read/write */
-               int count;      /* bytes to be comsumed or been generated by dma machine */
-               unsigned total_bytes;   /* total bytes dmaed by hardware */
-
-               unsigned error; /* number of over/underruns */
-                /* put process on wait queue when no more space in buffer */
-               wait_queue_head_t wait;
-
-               /* redundant, but makes calculations easier */
-               unsigned fragsize;
-               unsigned dmasize;
-               unsigned fragsamples;
-
-               /* OSS stuff */
-               unsigned mapped:1;
-               unsigned ready:1;
-               unsigned endcleared:1;
-               unsigned update_flag;
-               unsigned ossfragshift;
-               int ossmaxfrags;
-               unsigned subdivision;
-
-       } dmabuf;
-
-       /* 5.1 channels */
-       struct trident_state *other_states[4];
-       int multi_channels_adjust_count;
-       unsigned chans_num;
-       unsigned long fmt_flag;
-       /* Guard against mmap/write/read races */
-       struct mutex sem;
-
-};
-
-/* hardware channels */
-struct trident_channel {
-       int num; /* channel number */
-       u32 lba; /* Loop Begine Address, where dma buffer starts */
-       u32 eso; /* End Sample Offset, wehre dma buffer ends */
-                /* (in the unit of samples) */
-       u32 delta; /* delta value, sample rate / 48k for playback, */
-                  /* 48k/sample rate for recording */
-       u16 attribute; /* control where PCM data go and come  */
-       u16 fm_vol;
-       u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */
-};
-
-struct trident_pcm_bank_address {
-       u32 start;
-       u32 stop;
-       u32 aint;
-       u32 aint_en;
-};
-
-static struct trident_pcm_bank_address bank_a_addrs = {
-       T4D_START_A,
-       T4D_STOP_A,
-       T4D_AINT_A,
-       T4D_AINTEN_A
-};
-
-static struct trident_pcm_bank_address bank_b_addrs = {
-       T4D_START_B,
-       T4D_STOP_B,
-       T4D_AINT_B,
-       T4D_AINTEN_B
-};
-
-struct trident_pcm_bank {
-       /* register addresses to control bank operations */
-       struct trident_pcm_bank_address *addresses;
-       /* each bank has 32 channels */
-       u32 bitmap;             /* channel allocation bitmap */
-       struct trident_channel channels[32];
-};
-
-struct trident_card {
-       unsigned int magic;
-
-       /* We keep trident cards in a linked list */
-       struct trident_card *next;
-
-       /* single open lock mechanism, only used for recording */
-       struct mutex open_mutex;
-
-       /* The trident has a certain amount of cross channel interaction
-          so we use a single per card lock */
-       spinlock_t lock;
-
-       /* PCI device stuff */
-       struct pci_dev *pci_dev;
-       u16 pci_id;
-       u8 revision;
-
-       /* soundcore stuff */
-       int dev_audio;
-
-       /* structures for abstraction of hardware facilities, codecs, */
-       /* banks and channels */
-       struct ac97_codec *ac97_codec[NR_AC97];
-       struct trident_pcm_bank banks[NR_BANKS];
-       struct trident_state *states[NR_HW_CH];
-
-       /* hardware resources */
-       unsigned long iobase;
-       u32 irq;
-
-       /* Function support */
-       struct trident_channel *(*alloc_pcm_channel) (struct trident_card *);
-       struct trident_channel *(*alloc_rec_pcm_channel) (struct trident_card *);
-       void (*free_pcm_channel) (struct trident_card *, unsigned int chan);
-       void (*address_interrupt) (struct trident_card *);
-
-       /* Added by Matt Wu 01-05-2001 for spdif in */
-       int multi_channel_use_count;
-       int rec_channel_use_count;
-       u16 mixer_regs[64][NR_AC97];    /* Made card local by Alan */
-       int mixer_regs_ready;
-
-       /* Added for hardware volume control */
-       int hwvolctl;
-       struct timer_list timer;
-
-       /* Game port support */
-       struct gameport *gameport;
-};
-
-enum dmabuf_mode {
-       DM_PLAYBACK = 0,
-       DM_RECORD
-};
-
-/* table to map from CHANNELMASK to channel attribute for SiS 7018 */
-static u16 mask2attr[] = {
-       PCM_LR, PCM_LR, SURR_LR, CENTER_LFE,
-       HSET, MIC, MODEM_LINE1, MODEM_LINE2,
-       I2S_LR, SPDIF_LR
-};
-
-/* table to map from channel attribute to CHANNELMASK for SiS 7018 */
-static int attr2mask[] = {
-       DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET,
-       DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF
-};
-
-/* Added by Matt Wu 01-05-2001 for spdif in */
-static int ali_close_multi_channels(void);
-static void ali_delay(struct trident_card *card, int interval);
-static void ali_detect_spdif_rate(struct trident_card *card);
-
-static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val);
-static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg);
-
-static struct trident_card *devs;
-
-static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val);
-static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg);
-
-static int trident_open_mixdev(struct inode *inode, struct file *file);
-static int trident_ioctl_mixdev(struct inode *inode, struct file *file,
-                               unsigned int cmd, unsigned long arg);
-
-static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val);
-static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg);
-static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate);
-static void ali_enable_special_channel(struct trident_state *stat);
-static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card);
-static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card);
-static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel);
-static int ali_setup_multi_channels(struct trident_card *card, int chan_nums);
-static unsigned int ali_get_spdif_in_rate(struct trident_card *card);
-static void ali_setup_spdif_in(struct trident_card *card);
-static void ali_disable_spdif_in(struct trident_card *card);
-static void ali_disable_special_channel(struct trident_card *card, int ch);
-static void ali_setup_spdif_out(struct trident_card *card, int flag);
-static int ali_write_5_1(struct trident_state *state,
-                        const char __user *buffer,
-                        int cnt_for_multi_channel, unsigned int *copy_count,
-                        unsigned int *state_cnt);
-static int ali_allocate_other_states_resources(struct trident_state *state,
-                                              int chan_nums);
-static void ali_free_other_states_resources(struct trident_state *state);
-
-#define seek_offset(dma_ptr, buffer, cnt, offset, copy_count)  do { \
-        (dma_ptr) += (offset);   \
-       (buffer) += (offset);     \
-        (cnt) -= (offset);       \
-       (copy_count) += (offset); \
-} while (0)
-
-static inline int lock_set_fmt(struct trident_state* state)
-{
-       if (test_and_set_bit(0, &state->fmt_flag))
-               return -EFAULT;
-
-       return 0;
-}
-
-static inline void unlock_set_fmt(struct trident_state* state)
-{
-       clear_bit(0, &state->fmt_flag);
-}
-
-static int
-trident_enable_loop_interrupts(struct trident_card *card)
-{
-       u32 global_control;
-
-       global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
-
-       switch (card->pci_id) {
-       case PCI_DEVICE_ID_SI_7018:
-               global_control |= (ENDLP_IE | MIDLP_IE | BANK_B_EN);
-               break;
-       case PCI_DEVICE_ID_ALI_5451:
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-       case PCI_DEVICE_ID_INTERG_5050:
-               global_control |= (ENDLP_IE | MIDLP_IE);
-               break;
-       default:
-               return 0;
-       }
-
-       outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
-
-       pr_debug("trident: Enable Loop Interrupts, globctl = 0x%08X\n",
-                inl(TRID_REG(card, T4D_LFO_GC_CIR)));
-
-       return 1;
-}
-
-static int
-trident_disable_loop_interrupts(struct trident_card *card)
-{
-       u32 global_control;
-
-       global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
-       global_control &= ~(ENDLP_IE | MIDLP_IE);
-       outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
-
-       pr_debug("trident: Disabled Loop Interrupts, globctl = 0x%08X\n",
-                global_control);
-
-       return 1;
-}
-
-static void
-trident_enable_voice_irq(struct trident_card *card, unsigned int channel)
-{
-       unsigned int mask = 1 << (channel & 0x1f);
-       struct trident_pcm_bank *bank = &card->banks[channel >> 5];
-       u32 reg, addr = bank->addresses->aint_en;
-
-       reg = inl(TRID_REG(card, addr));
-       reg |= mask;
-       outl(reg, TRID_REG(card, addr));
-
-#ifdef DEBUG
-       reg = inl(TRID_REG(card, addr));
-       pr_debug("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
-                channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
-                reg, addr);
-#endif /* DEBUG */
-}
-
-static void
-trident_disable_voice_irq(struct trident_card *card, unsigned int channel)
-{
-       unsigned int mask = 1 << (channel & 0x1f);
-       struct trident_pcm_bank *bank = &card->banks[channel >> 5];
-       u32 reg, addr = bank->addresses->aint_en;
-
-       reg = inl(TRID_REG(card, addr));
-       reg &= ~mask;
-       outl(reg, TRID_REG(card, addr));
-
-       /* Ack the channel in case the interrupt was set before we disable it. */
-       outl(mask, TRID_REG(card, bank->addresses->aint));
-
-#ifdef DEBUG
-       reg = inl(TRID_REG(card, addr));
-       pr_debug("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
-                channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
-                reg, addr);
-#endif /* DEBUG */
-}
-
-static void
-trident_start_voice(struct trident_card *card, unsigned int channel)
-{
-       unsigned int mask = 1 << (channel & 0x1f);
-       struct trident_pcm_bank *bank = &card->banks[channel >> 5];
-       u32 addr = bank->addresses->start;
-
-#ifdef DEBUG
-       u32 reg;
-#endif /* DEBUG */
-
-       outl(mask, TRID_REG(card, addr));
-
-#ifdef DEBUG
-       reg = inl(TRID_REG(card, addr));
-       pr_debug("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n",
-                channel, addr == T4D_START_B ? "START_B" : "START_A",
-                reg, addr);
-#endif /* DEBUG */
-}
-
-static void
-trident_stop_voice(struct trident_card *card, unsigned int channel)
-{
-       unsigned int mask = 1 << (channel & 0x1f);
-       struct trident_pcm_bank *bank = &card->banks[channel >> 5];
-       u32 addr = bank->addresses->stop;
-
-#ifdef DEBUG
-       u32 reg;
-#endif /* DEBUG */
-
-       outl(mask, TRID_REG(card, addr));
-
-#ifdef DEBUG
-       reg = inl(TRID_REG(card, addr));
-       pr_debug("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n",
-                channel, addr == T4D_STOP_B ? "STOP_B" : "STOP_A",
-                reg, addr);
-#endif /* DEBUG */
-}
-
-static u32
-trident_get_interrupt_mask(struct trident_card *card, unsigned int channel)
-{
-       struct trident_pcm_bank *bank = &card->banks[channel];
-       u32 addr = bank->addresses->aint;
-       return inl(TRID_REG(card, addr));
-}
-
-static int
-trident_check_channel_interrupt(struct trident_card *card, unsigned int channel)
-{
-       unsigned int mask = 1 << (channel & 0x1f);
-       u32 reg = trident_get_interrupt_mask(card, channel >> 5);
-
-#ifdef DEBUG
-       if (reg & mask)
-               pr_debug("trident: channel %d has interrupt, %s = 0x%08x\n",
-                        channel, reg == T4D_AINT_B ? "AINT_B" : "AINT_A",
-                        reg);
-#endif /* DEBUG */
-       return (reg & mask) ? 1 : 0;
-}
-
-static void
-trident_ack_channel_interrupt(struct trident_card *card, unsigned int channel)
-{
-       unsigned int mask = 1 << (channel & 0x1f);
-       struct trident_pcm_bank *bank = &card->banks[channel >> 5];
-       u32 reg, addr = bank->addresses->aint;
-
-       reg = inl(TRID_REG(card, addr));
-       reg &= mask;
-       outl(reg, TRID_REG(card, addr));
-
-#ifdef DEBUG
-       reg = inl(TRID_REG(card, T4D_AINT_B));
-       pr_debug("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n",
-                channel, reg);
-#endif /* DEBUG */
-}
-
-static struct trident_channel *
-trident_alloc_pcm_channel(struct trident_card *card)
-{
-       struct trident_pcm_bank *bank;
-       int idx;
-
-       bank = &card->banks[BANK_B];
-
-       for (idx = 31; idx >= 0; idx--) {
-               if (!(bank->bitmap & (1 << idx))) {
-                       struct trident_channel *channel = &bank->channels[idx];
-                       bank->bitmap |= 1 << idx;
-                       channel->num = idx + 32;
-                       return channel;
-               }
-       }
-
-       /* no more free channels available */
-       printk(KERN_ERR "trident: no more channels available on Bank B.\n");
-       return NULL;
-}
-
-static void
-trident_free_pcm_channel(struct trident_card *card, unsigned int channel)
-{
-       int bank;
-       unsigned char b;
-
-       if (channel < 31 || channel > 63)
-               return;
-
-       if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
-           card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) {
-               b = inb(TRID_REG(card, T4D_REC_CH));
-               if ((b & ~0x80) == channel)
-                       outb(0x0, TRID_REG(card, T4D_REC_CH));
-       }
-
-       bank = channel >> 5;
-       channel = channel & 0x1f;
-
-       card->banks[bank].bitmap &= ~(1 << (channel));
-}
-
-static struct trident_channel *
-cyber_alloc_pcm_channel(struct trident_card *card)
-{
-       struct trident_pcm_bank *bank;
-       int idx;
-
-       /* The cyberpro 5050 has only 32 voices and one bank */
-       /* .. at least they are not documented (if you want to call that
-        * crap documentation), perhaps broken ? */
-
-       bank = &card->banks[BANK_A];
-
-       for (idx = 31; idx >= 0; idx--) {
-               if (!(bank->bitmap & (1 << idx))) {
-                       struct trident_channel *channel = &bank->channels[idx];
-                       bank->bitmap |= 1 << idx;
-                       channel->num = idx;
-                       return channel;
-               }
-       }
-
-       /* no more free channels available */
-       printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.\n");
-       return NULL;
-}
-
-static void
-cyber_free_pcm_channel(struct trident_card *card, unsigned int channel)
-{
-       if (channel > 31)
-               return;
-       card->banks[BANK_A].bitmap &= ~(1 << (channel));
-}
-
-static inline void
-cyber_outidx(int port, int idx, int data)
-{
-       outb(idx, port);
-       outb(data, port + 1);
-}
-
-static inline int
-cyber_inidx(int port, int idx)
-{
-       outb(idx, port);
-       return inb(port + 1);
-}
-
-static int
-cyber_init_ritual(struct trident_card *card)
-{
-       /* some black magic, taken from SDK samples */
-       /* remove this and nothing will work */
-       int portDat;
-       int ret = 0;
-       unsigned long flags;
-
-       /*
-        *      Keep interrupts off for the configure - we don't want to
-        *      clash with another cyberpro config event
-        */
-
-       spin_lock_irqsave(&card->lock, flags);
-       portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
-       /* enable, if it was disabled */
-       if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
-               printk(KERN_INFO "cyberpro5050: enabling audio controller\n");
-               cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE,
-                            portDat | CYBER_BMSK_AUENZ_ENABLE);
-               /* check again if hardware is enabled now */
-               portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
-       }
-       if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
-               printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n");
-               ret = -1;
-       } else {
-               cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE,
-                            CYBER_BMSK_AUDIO_INT_ENABLE);
-               cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x01);
-               cyber_outidx(CYBER_PORT_AUDIO, 0xba, 0x20);
-               cyber_outidx(CYBER_PORT_AUDIO, 0xbb, 0x08);
-               cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x02);
-               cyber_outidx(CYBER_PORT_AUDIO, 0xb3, 0x06);
-               cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x00);
-       }
-       spin_unlock_irqrestore(&card->lock, flags);
-       return ret;
-}
-
-/*  called with spin lock held */
-
-static int
-trident_load_channel_registers(struct trident_card *card, u32 * data,
-                              unsigned int channel)
-{
-       int i;
-
-       if (channel > 63)
-               return 0;
-
-       /* select hardware channel to write */
-       outb(channel, TRID_REG(card, T4D_LFO_GC_CIR));
-
-       /* Output the channel registers, but don't write register
-          three to an ALI chip. */
-       for (i = 0; i < CHANNEL_REGS; i++) {
-               if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451)
-                       continue;
-               outl(data[i], TRID_REG(card, CHANNEL_START + 4 * i));
-       }
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
-           card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
-               outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1));
-               outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2));
-       }
-       return 1;
-}
-
-/* called with spin lock held */
-static int
-trident_write_voice_regs(struct trident_state *state)
-{
-       unsigned int data[CHANNEL_REGS + 1];
-       struct trident_channel *channel;
-
-       channel = state->dmabuf.channel;
-
-       data[1] = channel->lba;
-       data[4] = channel->control;
-
-       switch (state->card->pci_id) {
-       case PCI_DEVICE_ID_ALI_5451:
-               data[0] = 0;    /* Current Sample Offset */
-               data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
-               data[3] = 0;
-               break;
-       case PCI_DEVICE_ID_SI_7018:
-       case PCI_DEVICE_ID_INTERG_5050:
-               data[0] = 0;    /* Current Sample Offset */
-               data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
-               data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff);
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-               data[0] = 0;    /* Current Sample Offset */
-               data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
-               data[3] = channel->fm_vol & 0xffff;
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-               data[0] = (channel->delta << 24);
-               data[2] = ((channel->delta << 16) & 0xff000000) |
-                       (channel->eso & 0x00ffffff);
-               data[3] = channel->fm_vol & 0xffff;
-               break;
-       default:
-               return 0;
-       }
-
-       return trident_load_channel_registers(state->card, data, channel->num);
-}
-
-static int
-compute_rate_play(u32 rate)
-{
-       int delta;
-       /* We special case 44100 and 8000 since rounding with the equation
-          does not give us an accurate enough value. For 11025 and 22050
-          the equation gives us the best answer. All other frequencies will
-          also use the equation. JDW */
-       if (rate == 44100)
-               delta = 0xeb3;
-       else if (rate == 8000)
-               delta = 0x2ab;
-       else if (rate == 48000)
-               delta = 0x1000;
-       else
-               delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
-       return delta;
-}
-
-static int
-compute_rate_rec(u32 rate)
-{
-       int delta;
-
-       if (rate == 44100)
-               delta = 0x116a;
-       else if (rate == 8000)
-               delta = 0x6000;
-       else if (rate == 48000)
-               delta = 0x1000;
-       else
-               delta = ((48000 << 12) / rate) & 0x0000ffff;
-
-       return delta;
-}
-
-/* set playback sample rate */
-static unsigned int
-trident_set_dac_rate(struct trident_state *state, unsigned int rate)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-
-       if (rate > 48000)
-               rate = 48000;
-       if (rate < 4000)
-               rate = 4000;
-
-       dmabuf->rate = rate;
-       dmabuf->channel->delta = compute_rate_play(rate);
-
-       trident_write_voice_regs(state);
-
-       pr_debug("trident: called trident_set_dac_rate : rate = %d\n", rate);
-
-       return rate;
-}
-
-/* set recording sample rate */
-static unsigned int
-trident_set_adc_rate(struct trident_state *state, unsigned int rate)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-
-       if (rate > 48000)
-               rate = 48000;
-       if (rate < 4000)
-               rate = 4000;
-
-       dmabuf->rate = rate;
-       dmabuf->channel->delta = compute_rate_rec(rate);
-
-       trident_write_voice_regs(state);
-
-       pr_debug("trident: called trident_set_adc_rate : rate = %d\n", rate);
-
-       return rate;
-}
-
-/* prepare channel attributes for playback */
-static void
-trident_play_setup(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       struct trident_channel *channel = dmabuf->channel;
-
-       channel->lba = dmabuf->dma_handle;
-       channel->delta = compute_rate_play(dmabuf->rate);
-
-       channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
-       channel->eso -= 1;
-
-       if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
-               channel->attribute = 0;
-               if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-                       if ((channel->num == ALI_SPDIF_IN_CHANNEL) ||
-                           (channel->num == ALI_PCM_IN_CHANNEL))
-                               ali_disable_special_channel(state->card, channel->num);
-                       else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL))
-                                 & ALI_SPDIF_OUT_CH_ENABLE)
-                                && (channel->num == ALI_SPDIF_OUT_CHANNEL)) {
-                               ali_set_spdif_out_rate(state->card,
-                                                      state->dmabuf.rate);
-                               state->dmabuf.channel->delta = 0x1000;
-                       }
-               }
-       }
-
-       channel->fm_vol = 0x0;
-
-       channel->control = CHANNEL_LOOP;
-       if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
-               /* 16-bits */
-               channel->control |= CHANNEL_16BITS;
-               /* signed */
-               channel->control |= CHANNEL_SIGNED;
-       }
-       if (dmabuf->fmt & TRIDENT_FMT_STEREO)
-               /* stereo */
-               channel->control |= CHANNEL_STEREO;
-
-       pr_debug("trident: trident_play_setup, LBA = 0x%08x, Delta = 0x%08x, "
-                "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
-                channel->delta, channel->eso, channel->control);
-
-       trident_write_voice_regs(state);
-}
-
-/* prepare channel attributes for recording */
-static void
-trident_rec_setup(struct trident_state *state)
-{
-       u16 w;
-       u8 bval;
-
-       struct trident_card *card = state->card;
-       struct dmabuf *dmabuf = &state->dmabuf;
-       struct trident_channel *channel = dmabuf->channel;
-       unsigned int rate;
-
-       /* Enable AC-97 ADC (capture) */
-       switch (card->pci_id) {
-       case PCI_DEVICE_ID_ALI_5451:
-               ali_enable_special_channel(state);
-               break;
-       case PCI_DEVICE_ID_SI_7018:
-               /* for 7018, the ac97 is always in playback/record (duplex) mode */
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-               w = inb(TRID_REG(card, DX_ACR2_AC97_COM_STAT));
-               outb(w | 0x48, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
-               /* enable and set record channel */
-               outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-               w = inw(TRID_REG(card, T4D_MISCINT));
-               outw(w | 0x1000, TRID_REG(card, T4D_MISCINT));
-               /* enable and set record channel */
-               outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
-               break;
-       case PCI_DEVICE_ID_INTERG_5050:
-               /* don't know yet, using special channel 22 in GC1(0xd4)? */
-               break;
-       default:
-               return;
-       }
-
-       channel->lba = dmabuf->dma_handle;
-       channel->delta = compute_rate_rec(dmabuf->rate);
-       if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) &&
-           (channel->num == ALI_SPDIF_IN_CHANNEL)) {
-               rate = ali_get_spdif_in_rate(card);
-               if (rate == 0) {
-                       printk(KERN_WARNING "trident: ALi 5451 "
-                              "S/PDIF input setup error!\n");
-                       rate = 48000;
-               }
-               bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
-               if (bval & 0x10) {
-                       outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
-                       printk(KERN_WARNING "trident: cleared ALi "
-                              "5451 S/PDIF parity error flag.\n");
-               }
-
-               if (rate != 48000)
-                       channel->delta = ((rate << 12) / dmabuf->rate) & 0x0000ffff;
-       }
-
-       channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
-       channel->eso -= 1;
-
-       if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
-               channel->attribute = 0;
-       }
-
-       channel->fm_vol = 0x0;
-
-       channel->control = CHANNEL_LOOP;
-       if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
-               /* 16-bits */
-               channel->control |= CHANNEL_16BITS;
-               /* signed */
-               channel->control |= CHANNEL_SIGNED;
-       }
-       if (dmabuf->fmt & TRIDENT_FMT_STEREO)
-               /* stereo */
-               channel->control |= CHANNEL_STEREO;
-
-       pr_debug("trident: trident_rec_setup, LBA = 0x%08x, Delat = 0x%08x, "
-                "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
-                channel->delta, channel->eso, channel->control);
-
-       trident_write_voice_regs(state);
-}
-
-/* get current playback/recording dma buffer pointer (byte offset from LBA),
-   called with spinlock held! */
-static inline unsigned
-trident_get_dma_addr(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       u32 cso;
-
-       if (!dmabuf->enable)
-               return 0;
-
-       outb(dmabuf->channel->num, TRID_REG(state->card, T4D_LFO_GC_CIR));
-
-       switch (state->card->pci_id) {
-       case PCI_DEVICE_ID_ALI_5451:
-       case PCI_DEVICE_ID_SI_7018:
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-       case PCI_DEVICE_ID_INTERG_5050:
-               /* 16 bits ESO, CSO for 7018 and DX */
-               cso = inw(TRID_REG(state->card, CH_DX_CSO_ALPHA_FMS + 2));
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-               /* 24 bits ESO, CSO for NX */
-               cso = inl(TRID_REG(state->card, CH_NX_DELTA_CSO)) & 0x00ffffff;
-               break;
-       default:
-               return 0;
-       }
-
-       pr_debug("trident: trident_get_dma_addr: chip reported channel: %d, "
-                "cso = 0x%04x\n", dmabuf->channel->num, cso);
-
-       /* ESO and CSO are in units of Samples, convert to byte offset */
-       cso <<= sample_shift[dmabuf->fmt];
-
-       return (cso % dmabuf->dmasize);
-}
-
-/* Stop recording (lock held) */
-static inline void
-__stop_adc(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned int chan_num = dmabuf->channel->num;
-       struct trident_card *card = state->card;
-
-       dmabuf->enable &= ~ADC_RUNNING;
-       trident_stop_voice(card, chan_num);
-       trident_disable_voice_irq(card, chan_num);
-}
-
-static void
-stop_adc(struct trident_state *state)
-{
-       struct trident_card *card = state->card;
-       unsigned long flags;
-
-       spin_lock_irqsave(&card->lock, flags);
-       __stop_adc(state);
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void
-start_adc(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned int chan_num = dmabuf->channel->num;
-       struct trident_card *card = state->card;
-       unsigned long flags;
-
-       spin_lock_irqsave(&card->lock, flags);
-       if ((dmabuf->mapped ||
-            dmabuf->count < (signed) dmabuf->dmasize) &&
-           dmabuf->ready) {
-               dmabuf->enable |= ADC_RUNNING;
-               trident_enable_voice_irq(card, chan_num);
-               trident_start_voice(card, chan_num);
-       }
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-/* stop playback (lock held) */
-static inline void
-__stop_dac(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned int chan_num = dmabuf->channel->num;
-       struct trident_card *card = state->card;
-
-       dmabuf->enable &= ~DAC_RUNNING;
-       trident_stop_voice(card, chan_num);
-       if (state->chans_num == 6) {
-               trident_stop_voice(card, state->other_states[0]->
-                                  dmabuf.channel->num);
-               trident_stop_voice(card, state->other_states[1]->
-                                  dmabuf.channel->num);
-               trident_stop_voice(card, state->other_states[2]->
-                                  dmabuf.channel->num);
-               trident_stop_voice(card, state->other_states[3]->
-                                  dmabuf.channel->num);
-       }
-       trident_disable_voice_irq(card, chan_num);
-}
-
-static void
-stop_dac(struct trident_state *state)
-{
-       struct trident_card *card = state->card;
-       unsigned long flags;
-
-       spin_lock_irqsave(&card->lock, flags);
-       __stop_dac(state);
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void
-start_dac(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned int chan_num = dmabuf->channel->num;
-       struct trident_card *card = state->card;
-       unsigned long flags;
-
-       spin_lock_irqsave(&card->lock, flags);
-       if ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) {
-               dmabuf->enable |= DAC_RUNNING;
-               trident_enable_voice_irq(card, chan_num);
-               trident_start_voice(card, chan_num);
-               if (state->chans_num == 6) {
-                       trident_start_voice(card, state->other_states[0]->
-                                           dmabuf.channel->num);
-                       trident_start_voice(card, state->other_states[1]->
-                                           dmabuf.channel->num);
-                       trident_start_voice(card, state->other_states[2]->
-                                           dmabuf.channel->num);
-                       trident_start_voice(card, state->other_states[3]->
-                                           dmabuf.channel->num);
-               }
-       }
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-#define DMABUF_DEFAULTORDER (15-PAGE_SHIFT)
-#define DMABUF_MINORDER 1
-
-/* alloc a DMA buffer of with a buffer of this order */
-static int
-alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order)
-{
-       void *rawbuf = NULL;
-       struct page *page, *pend;
-
-       if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order,
-                                           &dmabuf->dma_handle)))
-               return -ENOMEM;
-
-       pr_debug("trident: allocated %ld (order = %d) bytes at %p\n",
-                PAGE_SIZE << order, order, rawbuf);
-
-       dmabuf->ready = dmabuf->mapped = 0;
-       dmabuf->rawbuf = rawbuf;
-       dmabuf->buforder = order;
-
-       /* now mark the pages as reserved; otherwise */
-       /* remap_pfn_range doesn't do what we want */
-       pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
-       for (page = virt_to_page(rawbuf); page <= pend; page++)
-               SetPageReserved(page);
-
-       return 0;
-}
-
-/* allocate the main DMA buffer, playback and recording buffer should be */
-/* allocated separately */
-static int
-alloc_main_dmabuf(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       int order;
-       int ret = -ENOMEM;
-
-       /* alloc as big a chunk as we can, FIXME: is this necessary ?? */
-       for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
-               if (!(ret = alloc_dmabuf(dmabuf, state->card->pci_dev, order)))
-                       return 0;
-               /* else try again */
-       }
-       return ret;
-}
-
-/* deallocate a DMA buffer */
-static void
-dealloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev)
-{
-       struct page *page, *pend;
-
-       if (dmabuf->rawbuf) {
-               /* undo marking the pages as reserved */
-               pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
-               for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
-                       ClearPageReserved(page);
-               pci_free_consistent(pci_dev, PAGE_SIZE << dmabuf->buforder,
-                                   dmabuf->rawbuf, dmabuf->dma_handle);
-               dmabuf->rawbuf = NULL;
-       }
-       dmabuf->mapped = dmabuf->ready = 0;
-}
-
-static int
-prog_dmabuf(struct trident_state *state, enum dmabuf_mode rec)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned bytepersec;
-       struct trident_state *s = state;
-       unsigned bufsize, dma_nums;
-       unsigned long flags;
-       int ret, i, order;
-
-       if ((ret = lock_set_fmt(state)) < 0)
-               return ret;
-
-       if (state->chans_num == 6)
-               dma_nums = 5;
-       else
-               dma_nums = 1;
-
-       for (i = 0; i < dma_nums; i++) {
-               if (i > 0) {
-                       s = state->other_states[i - 1];
-                       dmabuf = &s->dmabuf;
-                       dmabuf->fmt = state->dmabuf.fmt;
-                       dmabuf->rate = state->dmabuf.rate;
-               }
-
-               spin_lock_irqsave(&s->card->lock, flags);
-               dmabuf->hwptr = dmabuf->swptr = dmabuf->total_bytes = 0;
-               dmabuf->count = dmabuf->error = 0;
-               spin_unlock_irqrestore(&s->card->lock, flags);
-
-               /* allocate DMA buffer if not allocated yet */
-               if (!dmabuf->rawbuf) {
-                       if (i == 0) {
-                               if ((ret = alloc_main_dmabuf(state))) {
-                                       unlock_set_fmt(state);
-                                       return ret;
-                               }
-                       } else {
-                               ret = -ENOMEM;
-                               order = state->dmabuf.buforder - 1;
-                               if (order >= DMABUF_MINORDER) {
-                                       ret = alloc_dmabuf(dmabuf,
-                                                          state->card->pci_dev,
-                                                          order);
-                               }
-                               if (ret) {
-                                       /* release the main DMA buffer */
-                                       dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
-                                       /* release the auxiliary DMA buffers */
-                                       for (i -= 2; i >= 0; i--)
-                                               dealloc_dmabuf(&state->other_states[i]->dmabuf,
-                                                              state->card->pci_dev);
-                                       unlock_set_fmt(state);
-                                       return ret;
-                               }
-                       }
-               }
-               /* FIXME: figure out all this OSS fragment stuff */
-               bytepersec = dmabuf->rate << sample_shift[dmabuf->fmt];
-               bufsize = PAGE_SIZE << dmabuf->buforder;
-               if (dmabuf->ossfragshift) {
-                       if ((1000 << dmabuf->ossfragshift) < bytepersec)
-                               dmabuf->fragshift = ld2(bytepersec / 1000);
-                       else
-                               dmabuf->fragshift = dmabuf->ossfragshift;
-               } else {
-                       /* lets hand out reasonable big ass buffers by default */
-                       dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT - 2);
-               }
-               dmabuf->numfrag = bufsize >> dmabuf->fragshift;
-               while (dmabuf->numfrag < 4 && dmabuf->fragshift > 3) {
-                       dmabuf->fragshift--;
-                       dmabuf->numfrag = bufsize >> dmabuf->fragshift;
-               }
-               dmabuf->fragsize = 1 << dmabuf->fragshift;
-               if (dmabuf->ossmaxfrags >= 4 && dmabuf->ossmaxfrags < dmabuf->numfrag)
-                       dmabuf->numfrag = dmabuf->ossmaxfrags;
-               dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt];
-               dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
-
-               memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80,
-                      dmabuf->dmasize);
-
-               spin_lock_irqsave(&s->card->lock, flags);
-               if (rec == DM_RECORD)
-                       trident_rec_setup(s);
-               else /* DM_PLAYBACK */
-                       trident_play_setup(s);
-
-               spin_unlock_irqrestore(&s->card->lock, flags);
-
-               /* set the ready flag for the dma buffer */
-               dmabuf->ready = 1;
-
-               pr_debug("trident: prog_dmabuf(%d), sample rate = %d, "
-                        "format = %d, numfrag = %d, fragsize = %d "
-                        "dmasize = %d\n", dmabuf->channel->num,
-                        dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
-                        dmabuf->fragsize, dmabuf->dmasize);
-       }
-       unlock_set_fmt(state);
-       return 0;
-}
-
-
-static inline int prog_dmabuf_record(struct trident_state* state)
-{
-       return prog_dmabuf(state, DM_RECORD);
-}
-
-static inline int prog_dmabuf_playback(struct trident_state* state)
-{
-       return prog_dmabuf(state, DM_PLAYBACK);
-}
-
-/* we are doing quantum mechanics here, the buffer can only be empty, half or full filled i.e.
-   |------------|------------|   or   |xxxxxxxxxxxx|------------|   or   |xxxxxxxxxxxx|xxxxxxxxxxxx|
-   but we almost always get this
-   |xxxxxx------|------------|   or   |xxxxxxxxxxxx|xxxxx-------|
-   so we have to clear the tail space to "silence"
-   |xxxxxx000000|------------|   or   |xxxxxxxxxxxx|xxxxxx000000|
-*/
-static void
-trident_clear_tail(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned swptr;
-       unsigned char silence = (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80;
-       unsigned int len;
-       unsigned long flags;
-
-       spin_lock_irqsave(&state->card->lock, flags);
-       swptr = dmabuf->swptr;
-       spin_unlock_irqrestore(&state->card->lock, flags);
-
-       if (swptr == 0 || swptr == dmabuf->dmasize / 2 ||
-           swptr == dmabuf->dmasize)
-               return;
-
-       if (swptr < dmabuf->dmasize / 2)
-               len = dmabuf->dmasize / 2 - swptr;
-       else
-               len = dmabuf->dmasize - swptr;
-
-       memset(dmabuf->rawbuf + swptr, silence, len);
-       if (state->card->pci_id != PCI_DEVICE_ID_ALI_5451) {
-               spin_lock_irqsave(&state->card->lock, flags);
-               dmabuf->swptr += len;
-               dmabuf->count += len;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-       }
-
-       /* restart the dma machine in case it is halted */
-       start_dac(state);
-}
-
-static int
-drain_dac(struct trident_state *state, int nonblock)
-{
-       DECLARE_WAITQUEUE(wait, current);
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned long flags;
-       unsigned long tmo;
-       int count;
-       unsigned long diff = 0;
-
-       if (dmabuf->mapped || !dmabuf->ready)
-               return 0;
-
-       add_wait_queue(&dmabuf->wait, &wait);
-       for (;;) {
-               /* It seems that we have to set the current state to TASK_INTERRUPTIBLE
-                  every time to make the process really go to sleep */
-               set_current_state(TASK_INTERRUPTIBLE);
-
-               spin_lock_irqsave(&state->card->lock, flags);
-               count = dmabuf->count;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-
-               if (count <= 0)
-                       break;
-
-               if (signal_pending(current))
-                       break;
-
-               if (nonblock) {
-                       remove_wait_queue(&dmabuf->wait, &wait);
-                       set_current_state(TASK_RUNNING);
-                       return -EBUSY;
-               }
-
-               /* No matter how much data is left in the buffer, we have to wait until
-                  CSO == ESO/2 or CSO == ESO when address engine interrupts */
-               if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
-                   state->card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
-                       diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize;
-                       diff = diff % (dmabuf->dmasize);
-                       tmo = (diff * HZ) / dmabuf->rate;
-               } else {
-                       tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
-               }
-               tmo >>= sample_shift[dmabuf->fmt];
-               if (!schedule_timeout(tmo ? tmo : 1) && tmo) {
-                       break;
-               }
-       }
-       remove_wait_queue(&dmabuf->wait, &wait);
-       set_current_state(TASK_RUNNING);
-       if (signal_pending(current))
-               return -ERESTARTSYS;
-
-       return 0;
-}
-
-/* update buffer manangement pointers, especially, */
-/* dmabuf->count and dmabuf->hwptr */
-static void
-trident_update_ptr(struct trident_state *state)
-{
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned hwptr, swptr;
-       int clear_cnt = 0;
-       int diff;
-       unsigned char silence;
-       unsigned half_dmasize;
-
-       /* update hardware pointer */
-       hwptr = trident_get_dma_addr(state);
-       diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
-       dmabuf->hwptr = hwptr;
-       dmabuf->total_bytes += diff;
-
-       /* error handling and process wake up for ADC */
-       if (dmabuf->enable == ADC_RUNNING) {
-               if (dmabuf->mapped) {
-                       dmabuf->count -= diff;
-                       if (dmabuf->count >= (signed) dmabuf->fragsize)
-                               wake_up(&dmabuf->wait);
-               } else {
-                       dmabuf->count += diff;
-
-                       if (dmabuf->count < 0 ||
-                           dmabuf->count > dmabuf->dmasize) {
-                               /* buffer underrun or buffer overrun, */
-                               /* we have no way to recover it here, just */
-                               /* stop the machine and let the process */
-                               /* force hwptr and swptr to sync */
-                               __stop_adc(state);
-                               dmabuf->error++;
-                       }
-                       if (dmabuf->count < (signed) dmabuf->dmasize / 2)
-                               wake_up(&dmabuf->wait);
-               }
-       }
-
-       /* error handling and process wake up for DAC */
-       if (dmabuf->enable == DAC_RUNNING) {
-               if (dmabuf->mapped) {
-                       dmabuf->count += diff;
-                       if (dmabuf->count >= (signed) dmabuf->fragsize)
-                               wake_up(&dmabuf->wait);
-               } else {
-                       dmabuf->count -= diff;
-
-                       if (dmabuf->count < 0 ||
-                           dmabuf->count > dmabuf->dmasize) {
-                               /* buffer underrun or buffer overrun, we have no way to recover
-                                  it here, just stop the machine and let the process force hwptr
-                                  and swptr to sync */
-                               __stop_dac(state);
-                               dmabuf->error++;
-                       } else if (!dmabuf->endcleared) {
-                               swptr = dmabuf->swptr;
-                               silence = (dmabuf->fmt & TRIDENT_FMT_16BIT ? 0 : 0x80);
-                               if (dmabuf->update_flag & ALI_ADDRESS_INT_UPDATE) {
-                                       /* We must clear end data of 1/2 dmabuf if needed.
-                                          According to 1/2 algorithm of Address Engine Interrupt,
-                                          check the validation of the data of half dmasize. */
-                                       half_dmasize = dmabuf->dmasize / 2;
-                                       if ((diff = hwptr - half_dmasize) < 0)
-                                               diff = hwptr;
-                                       if ((dmabuf->count + diff) < half_dmasize) {
-                                               //there is invalid data in the end of half buffer
-                                               if ((clear_cnt = half_dmasize - swptr) < 0)
-                                                       clear_cnt += half_dmasize;
-                                               //clear the invalid data
-                                               memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
-                                               if (state->chans_num == 6) {
-                                                       clear_cnt = clear_cnt / 2;
-                                                       swptr = swptr / 2;
-                                                       memset(state->other_states[0]->dmabuf.rawbuf + swptr,
-                                                              silence, clear_cnt);
-                                                       memset(state->other_states[1]->dmabuf.rawbuf + swptr,
-                                                              silence, clear_cnt);
-                                                       memset(state->other_states[2]->dmabuf.rawbuf + swptr,
-                                                              silence, clear_cnt);
-                                                       memset(state->other_states[3]->dmabuf.rawbuf + swptr,
-                                                              silence, clear_cnt);
-                                               }
-                                               dmabuf->endcleared = 1;
-                                       }
-                               } else if (dmabuf->count < (signed) dmabuf->fragsize) {
-                                       clear_cnt = dmabuf->fragsize;
-                                       if ((swptr + clear_cnt) > dmabuf->dmasize)
-                                               clear_cnt = dmabuf->dmasize - swptr;
-                                       memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
-                                       if (state->chans_num == 6) {
-                                               clear_cnt = clear_cnt / 2;
-                                               swptr = swptr / 2;
-                                               memset(state->other_states[0]->dmabuf.rawbuf + swptr,
-                                                      silence, clear_cnt);
-                                               memset(state->other_states[1]->dmabuf.rawbuf + swptr,
-                                                      silence, clear_cnt);
-                                               memset(state->other_states[2]->dmabuf.rawbuf + swptr,
-                                                      silence, clear_cnt);
-                                               memset(state->other_states[3]->dmabuf.rawbuf + swptr,
-                                                      silence, clear_cnt);
-                                       }
-                                       dmabuf->endcleared = 1;
-                               }
-                       }
-                       /* trident_update_ptr is called by interrupt handler or by process via
-                          ioctl/poll, we only wake up the waiting process when we have more
-                          than 1/2 buffer free (always true for interrupt handler) */
-                       if (dmabuf->count < (signed) dmabuf->dmasize / 2)
-                               wake_up(&dmabuf->wait);
-               }
-       }
-       dmabuf->update_flag &= ~ALI_ADDRESS_INT_UPDATE;
-}
-
-static void
-trident_address_interrupt(struct trident_card *card)
-{
-       int i;
-       struct trident_state *state;
-       unsigned int channel;
-
-       /* Update the pointers for all channels we are running. */
-       /* FIXME: should read interrupt status only once */
-       for (i = 0; i < NR_HW_CH; i++) {
-               channel = 63 - i;
-               if (trident_check_channel_interrupt(card, channel)) {
-                       trident_ack_channel_interrupt(card, channel);
-                       if ((state = card->states[i]) != NULL) {
-                               trident_update_ptr(state);
-                       } else {
-                               printk(KERN_WARNING "trident: spurious channel "
-                                      "irq %d.\n", channel);
-                               trident_stop_voice(card, channel);
-                               trident_disable_voice_irq(card, channel);
-                       }
-               }
-       }
-}
-
-static void
-ali_hwvol_control(struct trident_card *card, int opt)
-{
-       u16 dwTemp, volume[2], mute, diff, *pVol[2];
-
-       dwTemp = ali_ac97_read(card->ac97_codec[0], 0x02);
-       mute = dwTemp & 0x8000;
-       volume[0] = dwTemp & 0x001f;
-       volume[1] = (dwTemp & 0x1f00) >> 8;
-       if (volume[0] < volume[1]) {
-               pVol[0] = &volume[0];
-               pVol[1] = &volume[1];
-       } else {
-               pVol[1] = &volume[0];
-               pVol[0] = &volume[1];
-       }
-       diff = *(pVol[1]) - *(pVol[0]);
-
-       if (opt == 1) {         // MUTE
-               dwTemp ^= 0x8000;
-               ali_ac97_write(card->ac97_codec[0],
-                              0x02, dwTemp);
-       } else if (opt == 2) {  // Down
-               if (mute)
-                       return;
-               if (*(pVol[1]) < 0x001f) {
-                       (*pVol[1])++;
-                       *(pVol[0]) = *(pVol[1]) - diff;
-               }
-               dwTemp &= 0xe0e0;
-               dwTemp |= (volume[0]) | (volume[1] << 8);
-               ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
-               card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
-                       (((32 - volume[1]) * 25 / 8) << 8);
-       } else if (opt == 4) {  // Up
-               if (mute)
-                       return;
-               if (*(pVol[0]) > 0) {
-                       (*pVol[0])--;
-                       *(pVol[1]) = *(pVol[0]) + diff;
-               }
-               dwTemp &= 0xe0e0;
-               dwTemp |= (volume[0]) | (volume[1] << 8);
-               ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
-               card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
-                       (((32 - volume[1]) * 25 / 8) << 8);
-       } else {
-               /* Nothing needs doing */
-       }
-}
-
-/*
- *     Re-enable reporting of vol change after 0.1 seconds
- */
-
-static void
-ali_timeout(unsigned long ptr)
-{
-       struct trident_card *card = (struct trident_card *) ptr;
-       u16 temp = 0;
-
-       /* Enable GPIO IRQ (MISCINT bit 18h) */
-       temp = inw(TRID_REG(card, T4D_MISCINT + 2));
-       temp |= 0x0004;
-       outw(temp, TRID_REG(card, T4D_MISCINT + 2));
-}
-
-/*
- *     Set up the timer to clear the vol change notification
- */
-
-static void
-ali_set_timer(struct trident_card *card)
-{
-       /* Add Timer Routine to Enable GPIO IRQ */
-       del_timer(&card->timer);        /* Never queue twice */
-       card->timer.function = ali_timeout;
-       card->timer.data = (unsigned long) card;
-       card->timer.expires = jiffies + HZ / 10;
-       add_timer(&card->timer);
-}
-
-/*
- *     Process a GPIO event
- */
-
-static void
-ali_queue_task(struct trident_card *card, int opt)
-{
-       u16 temp;
-
-       /* Disable GPIO IRQ (MISCINT bit 18h) */
-       temp = inw(TRID_REG(card, T4D_MISCINT + 2));
-       temp &= (u16) (~0x0004);
-       outw(temp, TRID_REG(card, T4D_MISCINT + 2));
-
-       /* Adjust the volume */
-       ali_hwvol_control(card, opt);
-
-       /* Set the timer for 1/10th sec */
-       ali_set_timer(card);
-}
-
-static void
-cyber_address_interrupt(struct trident_card *card)
-{
-       int i, irq_status;
-       struct trident_state *state;
-       unsigned int channel;
-
-       /* Update the pointers for all channels we are running. */
-       /* FIXED: read interrupt status only once */
-       irq_status = inl(TRID_REG(card, T4D_AINT_A));
-
-       pr_debug("cyber_address_interrupt: irq_status 0x%X\n", irq_status);
-
-       for (i = 0; i < NR_HW_CH; i++) {
-               channel = 31 - i;
-               if (irq_status & (1 << channel)) {
-                       /* clear bit by writing a 1, zeroes are ignored */
-                       outl((1 << channel), TRID_REG(card, T4D_AINT_A));
-
-                       pr_debug("cyber_interrupt: channel %d\n", channel);
-
-                       if ((state = card->states[i]) != NULL) {
-                               trident_update_ptr(state);
-                       } else {
-                               printk(KERN_WARNING "cyber5050: spurious "
-                                      "channel irq %d.\n", channel);
-                               trident_stop_voice(card, channel);
-                               trident_disable_voice_irq(card, channel);
-                       }
-               }
-       }
-}
-
-static irqreturn_t
-trident_interrupt(int irq, void *dev_id)
-{
-       struct trident_card *card = (struct trident_card *) dev_id;
-       u32 event;
-       u32 gpio;
-
-       spin_lock(&card->lock);
-       event = inl(TRID_REG(card, T4D_MISCINT));
-
-       pr_debug("trident: trident_interrupt called, MISCINT = 0x%08x\n",
-                event);
-
-       if (event & ADDRESS_IRQ) {
-               card->address_interrupt(card);
-       }
-
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               /* GPIO IRQ (H/W Volume Control) */
-               event = inl(TRID_REG(card, T4D_MISCINT));
-               if (event & (1 << 25)) {
-                       gpio = inl(TRID_REG(card, ALI_GPIO));
-                       if (!timer_pending(&card->timer))
-                               ali_queue_task(card, gpio & 0x07);
-               }
-               event = inl(TRID_REG(card, T4D_MISCINT));
-               outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
-                    TRID_REG(card, T4D_MISCINT));
-               spin_unlock(&card->lock);
-               return IRQ_HANDLED;
-       }
-
-       /* manually clear interrupt status, bad hardware design, blame T^2 */
-       outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
-            TRID_REG(card, T4D_MISCINT));
-       spin_unlock(&card->lock);
-       return IRQ_HANDLED;
-}
-
-/* in this loop, dmabuf.count signifies the amount of data that is waiting */
-/* to be copied to the user's buffer.  it is filled by the dma machine and */
-/* drained by this loop. */
-static ssize_t
-trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos)
-{
-       struct trident_state *state = (struct trident_state *)file->private_data;
-       struct dmabuf *dmabuf = &state->dmabuf;
-       ssize_t ret = 0;
-       unsigned long flags;
-       unsigned swptr;
-       int cnt;
-
-       pr_debug("trident: trident_read called, count = %zd\n", count);
-
-       VALIDATE_STATE(state);
-
-       if (dmabuf->mapped)
-               return -ENXIO;
-       if (!access_ok(VERIFY_WRITE, buffer, count))
-               return -EFAULT;
-
-       mutex_lock(&state->sem);
-       if (!dmabuf->ready && (ret = prog_dmabuf_record(state)))
-               goto out;
-
-       while (count > 0) {
-               spin_lock_irqsave(&state->card->lock, flags);
-               if (dmabuf->count > (signed) dmabuf->dmasize) {
-                       /* buffer overrun, we are recovering from */
-                       /* sleep_on_timeout, resync hwptr and swptr, */
-                       /* make process flush the buffer */
-                       dmabuf->count = dmabuf->dmasize;
-                       dmabuf->swptr = dmabuf->hwptr;
-               }
-               swptr = dmabuf->swptr;
-               cnt = dmabuf->dmasize - swptr;
-               if (dmabuf->count < cnt)
-                       cnt = dmabuf->count;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-
-               if (cnt > count)
-                       cnt = count;
-               if (cnt <= 0) {
-                       unsigned long tmo;
-                       /* buffer is empty, start the dma machine and */
-                       /* wait for data to be recorded */
-                       start_adc(state);
-                       if (file->f_flags & O_NONBLOCK) {
-                               if (!ret)
-                                       ret = -EAGAIN;
-                               goto out;
-                       }
-
-                       mutex_unlock(&state->sem);
-                       /* No matter how much space left in the buffer, */
-                       /* we have to wait until CSO == ESO/2 or CSO == ESO */
-                       /* when address engine interrupts */
-                       tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
-                       tmo >>= sample_shift[dmabuf->fmt];
-                       /* There are two situations when sleep_on_timeout returns, one is when
-                          the interrupt is serviced correctly and the process is waked up by
-                          ISR ON TIME. Another is when timeout is expired, which means that
-                          either interrupt is NOT serviced correctly (pending interrupt) or it
-                          is TOO LATE for the process to be scheduled to run (scheduler latency)
-                          which results in a (potential) buffer overrun. And worse, there is
-                          NOTHING we can do to prevent it. */
-                       if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
-                               pr_debug(KERN_ERR "trident: recording schedule timeout, "
-                                        "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
-                                        dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
-                                        dmabuf->hwptr, dmabuf->swptr);
-
-                               /* a buffer overrun, we delay the recovery until next time the
-                                  while loop begin and we REALLY have space to record */
-                       }
-                       if (signal_pending(current)) {
-                               if (!ret)
-                                       ret = -ERESTARTSYS;
-                               goto out;
-                       }
-                       mutex_lock(&state->sem);
-                       if (dmabuf->mapped) {
-                               if (!ret)
-                                       ret = -ENXIO;
-                               goto out;
-                       }
-                       continue;
-               }
-
-               if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
-                       if (!ret)
-                               ret = -EFAULT;
-                       goto out;
-               }
-
-               swptr = (swptr + cnt) % dmabuf->dmasize;
-
-               spin_lock_irqsave(&state->card->lock, flags);
-               dmabuf->swptr = swptr;
-               dmabuf->count -= cnt;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-
-               count -= cnt;
-               buffer += cnt;
-               ret += cnt;
-               start_adc(state);
-       }
-out:
-       mutex_unlock(&state->sem);
-       return ret;
-}
-
-/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
-   the soundcard.  it is drained by the dma machine and filled by this loop. */
-
-static ssize_t
-trident_write(struct file *file, const char __user *buffer, size_t count, loff_t * ppos)
-{
-       struct trident_state *state = (struct trident_state *)file->private_data;
-       struct dmabuf *dmabuf = &state->dmabuf;
-       ssize_t ret;
-       unsigned long flags;
-       unsigned swptr;
-       int cnt;
-       unsigned int state_cnt;
-       unsigned int copy_count;
-       int lret; /* for lock_set_fmt */
-
-       pr_debug("trident: trident_write called, count = %zd\n", count);
-
-       VALIDATE_STATE(state);
-
-       /*
-        *      Guard against an mmap or ioctl while writing
-        */
-
-       mutex_lock(&state->sem);
-
-       if (dmabuf->mapped) {
-               ret = -ENXIO;
-               goto out;
-       }
-       if (!dmabuf->ready && (ret = prog_dmabuf_playback(state)))
-               goto out;
-
-       if (!access_ok(VERIFY_READ, buffer, count)) {
-               ret = -EFAULT;
-               goto out;
-       }
-
-       ret = 0;
-
-       while (count > 0) {
-               spin_lock_irqsave(&state->card->lock, flags);
-               if (dmabuf->count < 0) {
-                       /* buffer underrun, we are recovering from */
-                       /* sleep_on_timeout, resync hwptr and swptr */
-                       dmabuf->count = 0;
-                       dmabuf->swptr = dmabuf->hwptr;
-               }
-               swptr = dmabuf->swptr;
-               cnt = dmabuf->dmasize - swptr;
-               if (dmabuf->count + cnt > dmabuf->dmasize)
-                       cnt = dmabuf->dmasize - dmabuf->count;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-
-               if (cnt > count)
-                       cnt = count;
-               if (cnt <= 0) {
-                       unsigned long tmo;
-                       /* buffer is full, start the dma machine and */
-                       /* wait for data to be played */
-                       start_dac(state);
-                       if (file->f_flags & O_NONBLOCK) {
-                               if (!ret)
-                                       ret = -EAGAIN;
-                               goto out;
-                       }
-                       /* No matter how much data left in the buffer, */
-                       /* we have to wait until CSO == ESO/2 or CSO == ESO */
-                       /* when address engine interrupts */
-                       lock_set_fmt(state);
-                       tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
-                       tmo >>= sample_shift[dmabuf->fmt];
-                       unlock_set_fmt(state);
-                       mutex_unlock(&state->sem);
-
-                       /* There are two situations when sleep_on_timeout */
-                       /* returns, one is when the interrupt is serviced */
-                       /* correctly and the process is waked up by ISR */
-                       /* ON TIME. Another is when timeout is expired, which */
-                       /* means that either interrupt is NOT serviced */
-                       /* correctly (pending interrupt) or it is TOO LATE */
-                       /* for the process to be scheduled to run */
-                       /* (scheduler latency) which results in a (potential) */
-                       /* buffer underrun. And worse, there is NOTHING we */
-                       /* can do to prevent it. */
-                       if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
-                               pr_debug(KERN_ERR "trident: playback schedule "
-                                        "timeout, dmasz %u fragsz %u count %i "
-                                        "hwptr %u swptr %u\n", dmabuf->dmasize,
-                                        dmabuf->fragsize, dmabuf->count,
-                                        dmabuf->hwptr, dmabuf->swptr);
-
-                               /* a buffer underrun, we delay the recovery */
-                               /* until next time the while loop begin and */
-                               /* we REALLY have data to play */
-                       }
-                       if (signal_pending(current)) {
-                               if (!ret)
-                                       ret = -ERESTARTSYS;
-                               goto out_nolock;
-                       }
-                       mutex_lock(&state->sem);
-                       if (dmabuf->mapped) {
-                               if (!ret)
-                                       ret = -ENXIO;
-                               goto out;
-                       }
-                       continue;
-               }
-               if ((lret = lock_set_fmt(state)) < 0) {
-                       ret = lret;
-                       goto out;
-               }
-
-               if (state->chans_num == 6) {
-                       copy_count = 0;
-                       state_cnt = 0;
-                       if (ali_write_5_1(state, buffer, cnt, &copy_count,
-                                         &state_cnt) == -EFAULT) {
-                               if (state_cnt) {
-                                       swptr = (swptr + state_cnt) % dmabuf->dmasize;
-                                       spin_lock_irqsave(&state->card->lock, flags);
-                                       dmabuf->swptr = swptr;
-                                       dmabuf->count += state_cnt;
-                                       dmabuf->endcleared = 0;
-                                       spin_unlock_irqrestore(&state->card->lock, flags);
-                               }
-                               ret += copy_count;
-                               if (!ret)
-                                       ret = -EFAULT;
-                               unlock_set_fmt(state);
-                               goto out;
-                       }
-               } else {
-                       if (copy_from_user(dmabuf->rawbuf + swptr,
-                                          buffer, cnt)) {
-                               if (!ret)
-                                       ret = -EFAULT;
-                               unlock_set_fmt(state);
-                               goto out;
-                       }
-                       state_cnt = cnt;
-               }
-               unlock_set_fmt(state);
-
-               swptr = (swptr + state_cnt) % dmabuf->dmasize;
-
-               spin_lock_irqsave(&state->card->lock, flags);
-               dmabuf->swptr = swptr;
-               dmabuf->count += state_cnt;
-               dmabuf->endcleared = 0;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-
-               count -= cnt;
-               buffer += cnt;
-               ret += cnt;
-               start_dac(state);
-       }
-out:
-       mutex_unlock(&state->sem);
-out_nolock:
-       return ret;
-}
-
-/* No kernel lock - we have our own spinlock */
-static unsigned int
-trident_poll(struct file *file, struct poll_table_struct *wait)
-{
-       struct trident_state *state = (struct trident_state *)file->private_data;
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned long flags;
-       unsigned int mask = 0;
-
-       VALIDATE_STATE(state);
-
-       /*
-        *      Guard against a parallel poll and write causing multiple
-        *      prog_dmabuf events
-        */
-
-       mutex_lock(&state->sem);
-
-       if (file->f_mode & FMODE_WRITE) {
-               if (!dmabuf->ready && prog_dmabuf_playback(state)) {
-                       mutex_unlock(&state->sem);
-                       return 0;
-               }
-               poll_wait(file, &dmabuf->wait, wait);
-       }
-       if (file->f_mode & FMODE_READ) {
-               if (!dmabuf->ready && prog_dmabuf_record(state)) {
-                       mutex_unlock(&state->sem);
-                       return 0;
-               }
-               poll_wait(file, &dmabuf->wait, wait);
-       }
-
-       mutex_unlock(&state->sem);
-
-       spin_lock_irqsave(&state->card->lock, flags);
-       trident_update_ptr(state);
-       if (file->f_mode & FMODE_READ) {
-               if (dmabuf->count >= (signed) dmabuf->fragsize)
-                       mask |= POLLIN | POLLRDNORM;
-       }
-       if (file->f_mode & FMODE_WRITE) {
-               if (dmabuf->mapped) {
-                       if (dmabuf->count >= (signed) dmabuf->fragsize)
-                               mask |= POLLOUT | POLLWRNORM;
-               } else {
-                       if ((signed) dmabuf->dmasize >= dmabuf->count +
-                           (signed) dmabuf->fragsize)
-                               mask |= POLLOUT | POLLWRNORM;
-               }
-       }
-       spin_unlock_irqrestore(&state->card->lock, flags);
-
-       return mask;
-}
-
-static int
-trident_mmap(struct file *file, struct vm_area_struct *vma)
-{
-       struct trident_state *state = (struct trident_state *)file->private_data;
-       struct dmabuf *dmabuf = &state->dmabuf;
-       int ret = -EINVAL;
-       unsigned long size;
-
-       VALIDATE_STATE(state);
-
-       /*
-        *      Lock against poll read write or mmap creating buffers. Also lock
-        *      a read or write against an mmap.
-        */
-
-       mutex_lock(&state->sem);
-
-       if (vma->vm_flags & VM_WRITE) {
-               if ((ret = prog_dmabuf_playback(state)) != 0)
-                       goto out;
-       } else if (vma->vm_flags & VM_READ) {
-               if ((ret = prog_dmabuf_record(state)) != 0)
-                       goto out;
-       } else
-               goto out;
-
-       ret = -EINVAL;
-       if (vma->vm_pgoff != 0)
-               goto out;
-       size = vma->vm_end - vma->vm_start;
-       if (size > (PAGE_SIZE << dmabuf->buforder))
-               goto out;
-       ret = -EAGAIN;
-       if (remap_pfn_range(vma, vma->vm_start,
-                            virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
-                            size, vma->vm_page_prot))
-               goto out;
-       dmabuf->mapped = 1;
-       ret = 0;
-out:
-       mutex_unlock(&state->sem);
-       return ret;
-}
-
-static int
-trident_ioctl(struct inode *inode, struct file *file,
-             unsigned int cmd, unsigned long arg)
-{
-       struct trident_state *state = (struct trident_state *)file->private_data;
-       struct dmabuf *dmabuf = &state->dmabuf;
-       unsigned long flags;
-       audio_buf_info abinfo;
-       count_info cinfo;
-       int val, mapped, ret = 0;
-       struct trident_card *card = state->card;
-       void __user *argp = (void __user *)arg;
-       int __user *p = argp;
-
-       VALIDATE_STATE(state);
-
-
-       mapped = ((file->f_mode & (FMODE_WRITE | FMODE_READ)) && dmabuf->mapped);
-
-       pr_debug("trident: trident_ioctl, command = %2d, arg = 0x%08x\n",
-                _IOC_NR(cmd), arg ? *p : 0);
-
-       switch (cmd) {
-       case OSS_GETVERSION:
-               ret = put_user(SOUND_VERSION, p);
-               break;
-
-       case SNDCTL_DSP_RESET:
-               /* FIXME: spin_lock ? */
-               if (file->f_mode & FMODE_WRITE) {
-                       stop_dac(state);
-                       synchronize_irq(card->irq);
-                       dmabuf->ready = 0;
-                       dmabuf->swptr = dmabuf->hwptr = 0;
-                       dmabuf->count = dmabuf->total_bytes = 0;
-               }
-               if (file->f_mode & FMODE_READ) {
-                       stop_adc(state);
-                       synchronize_irq(card->irq);
-                       dmabuf->ready = 0;
-                       dmabuf->swptr = dmabuf->hwptr = 0;
-                       dmabuf->count = dmabuf->total_bytes = 0;
-               }
-               break;
-
-       case SNDCTL_DSP_SYNC:
-               if (file->f_mode & FMODE_WRITE)
-                       ret = drain_dac(state, file->f_flags & O_NONBLOCK);
-               break;
-
-       case SNDCTL_DSP_SPEED:  /* set smaple rate */
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if (val >= 0) {
-                       if (file->f_mode & FMODE_WRITE) {
-                               stop_dac(state);
-                               dmabuf->ready = 0;
-                               spin_lock_irqsave(&state->card->lock, flags);
-                               trident_set_dac_rate(state, val);
-                               spin_unlock_irqrestore(&state->card->lock, flags);
-                       }
-                       if (file->f_mode & FMODE_READ) {
-                               stop_adc(state);
-                               dmabuf->ready = 0;
-                               spin_lock_irqsave(&state->card->lock, flags);
-                               trident_set_adc_rate(state, val);
-                               spin_unlock_irqrestore(&state->card->lock, flags);
-                       }
-               }
-               ret = put_user(dmabuf->rate, p);
-               break;
-
-       case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if ((ret = lock_set_fmt(state)) < 0)
-                       return ret;
-
-               if (file->f_mode & FMODE_WRITE) {
-                       stop_dac(state);
-                       dmabuf->ready = 0;
-                       if (val)
-                               dmabuf->fmt |= TRIDENT_FMT_STEREO;
-                       else
-                               dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
-               }
-               if (file->f_mode & FMODE_READ) {
-                       stop_adc(state);
-                       dmabuf->ready = 0;
-                       if (val)
-                               dmabuf->fmt |= TRIDENT_FMT_STEREO;
-                       else
-                               dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
-               }
-               unlock_set_fmt(state);
-               break;
-
-       case SNDCTL_DSP_GETBLKSIZE:
-               if (file->f_mode & FMODE_WRITE) {
-                       if ((val = prog_dmabuf_playback(state)))
-                               ret = val;
-                       else
-                               ret = put_user(dmabuf->fragsize, p);
-                       break;
-               }
-               if (file->f_mode & FMODE_READ) {
-                       if ((val = prog_dmabuf_record(state)))
-                               ret = val;
-                       else
-                               ret = put_user(dmabuf->fragsize, p);
-                       break;
-               }
-               /* neither READ nor WRITE? is this even possible? */
-               ret = -EINVAL;
-               break;
-
-
-       case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */
-               ret = put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 |
-                              AFMT_U8, p);
-               break;
-
-       case SNDCTL_DSP_SETFMT: /* Select sample format */
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if ((ret = lock_set_fmt(state)) < 0)
-                       return ret;
-
-               if (val != AFMT_QUERY) {
-                       if (file->f_mode & FMODE_WRITE) {
-                               stop_dac(state);
-                               dmabuf->ready = 0;
-                               if (val == AFMT_S16_LE)
-                                       dmabuf->fmt |= TRIDENT_FMT_16BIT;
-                               else
-                                       dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
-                       }
-                       if (file->f_mode & FMODE_READ) {
-                               stop_adc(state);
-                               dmabuf->ready = 0;
-                               if (val == AFMT_S16_LE)
-                                       dmabuf->fmt |= TRIDENT_FMT_16BIT;
-                               else
-                                       dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
-                       }
-               }
-               unlock_set_fmt(state);
-               ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE :
-                              AFMT_U8, p);
-               break;
-
-       case SNDCTL_DSP_CHANNELS:
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if (val != 0) {
-                       if ((ret = lock_set_fmt(state)) < 0)
-                               return ret;
-
-                       if (file->f_mode & FMODE_WRITE) {
-                               stop_dac(state);
-                               dmabuf->ready = 0;
-
-                               //prevent from memory leak
-                               if ((state->chans_num > 2) && (state->chans_num != val)) {
-                                       ali_free_other_states_resources(state);
-                                       state->chans_num = 1;
-                               }
-
-                               if (val >= 2) {
-
-                                       dmabuf->fmt |= TRIDENT_FMT_STEREO;
-                                       if ((val == 6) && (state->card->pci_id == PCI_DEVICE_ID_ALI_5451)) {
-                                               if (card->rec_channel_use_count > 0) {
-                                                       printk(KERN_ERR "trident: Record is "
-                                                              "working on the card!\n");
-                                                       ret = -EBUSY;
-                                                       unlock_set_fmt(state);
-                                                       break;
-                                               }
-
-                                               ret = ali_setup_multi_channels(state->card, 6);
-                                               if (ret < 0) {
-                                                       unlock_set_fmt(state);
-                                                       break;
-                                               }
-                                               mutex_lock(&state->card->open_mutex);
-                                               ret = ali_allocate_other_states_resources(state, 6);
-                                               if (ret < 0) {
-                                                       mutex_unlock(&state->card->open_mutex);
-                                                       unlock_set_fmt(state);
-                                                       break;
-                                               }
-                                               state->card->multi_channel_use_count++;
-                                               mutex_unlock(&state->card->open_mutex);
-                                       } else
-                                               val = 2;        /*yield to 2-channels */
-                               } else
-                                       dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
-                               state->chans_num = val;
-                       }
-                       if (file->f_mode & FMODE_READ) {
-                               stop_adc(state);
-                               dmabuf->ready = 0;
-                               if (val >= 2) {
-                                       if (!((file->f_mode & FMODE_WRITE) &&
-                                             (val == 6)))
-                                               val = 2;
-                                       dmabuf->fmt |= TRIDENT_FMT_STEREO;
-                               } else
-                                       dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
-                               state->chans_num = val;
-                       }
-                       unlock_set_fmt(state);
-               }
-               ret = put_user(val, p);
-               break;
-
-       case SNDCTL_DSP_POST:
-               /* Cause the working fragment to be output */
-               break;
-
-       case SNDCTL_DSP_SUBDIVIDE:
-               if (dmabuf->subdivision) {
-                       ret = -EINVAL;
-                       break;
-               }
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if (val != 1 && val != 2 && val != 4) {
-                       ret = -EINVAL;
-                       break;
-               }
-               dmabuf->subdivision = val;
-               break;
-
-       case SNDCTL_DSP_SETFRAGMENT:
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-
-               dmabuf->ossfragshift = val & 0xffff;
-               dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
-               if (dmabuf->ossfragshift < 4)
-                       dmabuf->ossfragshift = 4;
-               if (dmabuf->ossfragshift > 15)
-                       dmabuf->ossfragshift = 15;
-               if (dmabuf->ossmaxfrags < 4)
-                       dmabuf->ossmaxfrags = 4;
-
-               break;
-
-       case SNDCTL_DSP_GETOSPACE:
-               if (!(file->f_mode & FMODE_WRITE)) {
-                       ret = -EINVAL;
-                       break;
-               }
-               if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) != 0) {
-                       ret = val;
-                       break;
-               }
-               spin_lock_irqsave(&state->card->lock, flags);
-               trident_update_ptr(state);
-               abinfo.fragsize = dmabuf->fragsize;
-               abinfo.bytes = dmabuf->dmasize - dmabuf->count;
-               abinfo.fragstotal = dmabuf->numfrag;
-               abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-               ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ?
-                       -EFAULT : 0;
-               break;
-
-       case SNDCTL_DSP_GETISPACE:
-               if (!(file->f_mode & FMODE_READ)) {
-                       ret = -EINVAL;
-                       break;
-               }
-               if (!dmabuf->ready && (val = prog_dmabuf_record(state)) != 0) {
-                       ret = val;
-                       break;
-               }
-               spin_lock_irqsave(&state->card->lock, flags);
-               trident_update_ptr(state);
-               abinfo.fragsize = dmabuf->fragsize;
-               abinfo.bytes = dmabuf->count;
-               abinfo.fragstotal = dmabuf->numfrag;
-               abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-               ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ?
-                       -EFAULT : 0;
-               break;
-
-       case SNDCTL_DSP_NONBLOCK:
-               file->f_flags |= O_NONBLOCK;
-               break;
-
-       case SNDCTL_DSP_GETCAPS:
-               ret = put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER |
-                              DSP_CAP_MMAP | DSP_CAP_BIND, p);
-               break;
-
-       case SNDCTL_DSP_GETTRIGGER:
-               val = 0;
-               if ((file->f_mode & FMODE_READ) && dmabuf->enable)
-                       val |= PCM_ENABLE_INPUT;
-               if ((file->f_mode & FMODE_WRITE) && dmabuf->enable)
-                       val |= PCM_ENABLE_OUTPUT;
-               ret = put_user(val, p);
-               break;
-
-       case SNDCTL_DSP_SETTRIGGER:
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if (file->f_mode & FMODE_READ) {
-                       if (val & PCM_ENABLE_INPUT) {
-                               if (!dmabuf->ready &&
-                                   (ret = prog_dmabuf_record(state)))
-                                       break;
-                               start_adc(state);
-                       } else
-                               stop_adc(state);
-               }
-               if (file->f_mode & FMODE_WRITE) {
-                       if (val & PCM_ENABLE_OUTPUT) {
-                               if (!dmabuf->ready &&
-                                   (ret = prog_dmabuf_playback(state)))
-                                       break;
-                               start_dac(state);
-                       } else
-                               stop_dac(state);
-               }
-               break;
-
-       case SNDCTL_DSP_GETIPTR:
-               if (!(file->f_mode & FMODE_READ)) {
-                       ret = -EINVAL;
-                       break;
-               }
-               if (!dmabuf->ready && (val = prog_dmabuf_record(state))
-                   != 0) {
-                       ret = val;
-                       break;
-               }
-               spin_lock_irqsave(&state->card->lock, flags);
-               trident_update_ptr(state);
-               cinfo.bytes = dmabuf->total_bytes;
-               cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
-               cinfo.ptr = dmabuf->hwptr;
-               if (dmabuf->mapped)
-                       dmabuf->count &= dmabuf->fragsize - 1;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-               ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ?
-                       -EFAULT : 0;
-               break;
-
-       case SNDCTL_DSP_GETOPTR:
-               if (!(file->f_mode & FMODE_WRITE)) {
-                       ret = -EINVAL;
-                       break;
-               }
-               if (!dmabuf->ready && (val = prog_dmabuf_playback(state))
-                   != 0) {
-                       ret = val;
-                       break;
-               }
-
-               spin_lock_irqsave(&state->card->lock, flags);
-               trident_update_ptr(state);
-               cinfo.bytes = dmabuf->total_bytes;
-               cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
-               cinfo.ptr = dmabuf->hwptr;
-               if (dmabuf->mapped)
-                       dmabuf->count &= dmabuf->fragsize - 1;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-               ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ?
-                       -EFAULT : 0;
-               break;
-
-       case SNDCTL_DSP_SETDUPLEX:
-               ret = -EINVAL;
-               break;
-
-       case SNDCTL_DSP_GETODELAY:
-               if (!(file->f_mode & FMODE_WRITE)) {
-                       ret = -EINVAL;
-                       break;
-               }
-               if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) != 0) {
-                       ret = val;
-                       break;
-               }
-               spin_lock_irqsave(&state->card->lock, flags);
-               trident_update_ptr(state);
-               val = dmabuf->count;
-               spin_unlock_irqrestore(&state->card->lock, flags);
-               ret = put_user(val, p);
-               break;
-
-       case SOUND_PCM_READ_RATE:
-               ret = put_user(dmabuf->rate, p);
-               break;
-
-       case SOUND_PCM_READ_CHANNELS:
-               ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1,
-                              p);
-               break;
-
-       case SOUND_PCM_READ_BITS:
-               ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE :
-                              AFMT_U8, p);
-               break;
-
-       case SNDCTL_DSP_GETCHANNELMASK:
-               ret = put_user(DSP_BIND_FRONT | DSP_BIND_SURR |
-                              DSP_BIND_CENTER_LFE,  p);
-               break;
-
-       case SNDCTL_DSP_BIND_CHANNEL:
-               if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
-                       ret = -EINVAL;
-                       break;
-               }
-
-               if (get_user(val, p)) {
-                       ret = -EFAULT;
-                       break;
-               }
-               if (val == DSP_BIND_QUERY) {
-                       val = dmabuf->channel->attribute | 0x3c00;
-                       val = attr2mask[val >> 8];
-               } else {
-                       dmabuf->ready = 0;
-                       if (file->f_mode & FMODE_READ)
-                               dmabuf->channel->attribute = (CHANNEL_REC |
-                                                             SRC_ENABLE);
-                       if (file->f_mode & FMODE_WRITE)
-                               dmabuf->channel->attribute = (CHANNEL_SPC_PB |
-                                                             SRC_ENABLE);
-                       dmabuf->channel->attribute |= mask2attr[ffs(val)];
-               }
-               ret = put_user(val, p);
-               break;
-
-       case SNDCTL_DSP_MAPINBUF:
-       case SNDCTL_DSP_MAPOUTBUF:
-       case SNDCTL_DSP_SETSYNCRO:
-       case SOUND_PCM_WRITE_FILTER:
-       case SOUND_PCM_READ_FILTER:
-       default:
-               ret = -EINVAL;
-               break;
-
-       }
-       return ret;
-}
-
-static int
-trident_open(struct inode *inode, struct file *file)
-{
-       int i = 0;
-       int minor = iminor(inode);
-       struct trident_card *card = devs;
-       struct trident_state *state = NULL;
-       struct dmabuf *dmabuf = NULL;
-       unsigned long flags;
-
-       /* Added by Matt Wu 01-05-2001 */
-       /* TODO: there's some redundacy here wrt the check below */
-       /* for multi_use_count > 0. Should we return -EBUSY or find */
-       /* a different card? for now, don't break current behaviour */
-       /* -- mulix */
-       if (file->f_mode & FMODE_READ) {
-               if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-                       if (card->multi_channel_use_count > 0)
-                               return -EBUSY;
-               }
-       }
-
-       /* find an available virtual channel (instance of /dev/dsp) */
-       while (card != NULL) {
-               mutex_lock(&card->open_mutex);
-               if (file->f_mode & FMODE_READ) {
-                       /* Skip opens on cards that are in 6 channel mode */
-                       if (card->multi_channel_use_count > 0) {
-                               mutex_unlock(&card->open_mutex);
-                               card = card->next;
-                               continue;
-                       }
-               }
-               for (i = 0; i < NR_HW_CH; i++) {
-                       if (card->states[i] == NULL) {
-                               state = card->states[i] = kzalloc(sizeof(*state), GFP_KERNEL);
-                               if (state == NULL) {
-                                       mutex_unlock(&card->open_mutex);
-                                       return -ENOMEM;
-                               }
-                               mutex_init(&state->sem);
-                               dmabuf = &state->dmabuf;
-                               goto found_virt;
-                       }
-               }
-               mutex_unlock(&card->open_mutex);
-               card = card->next;
-       }
-       /* no more virtual channel avaiable */
-       if (!state) {
-               return -ENODEV;
-       }
-      found_virt:
-       /* found a free virtual channel, allocate hardware channels */
-       if (file->f_mode & FMODE_READ)
-               dmabuf->channel = card->alloc_rec_pcm_channel(card);
-       else
-               dmabuf->channel = card->alloc_pcm_channel(card);
-
-       if (dmabuf->channel == NULL) {
-               kfree(card->states[i]);
-               card->states[i] = NULL;
-               return -ENODEV;
-       }
-
-       /* initialize the virtual channel */
-       state->virt = i;
-       state->card = card;
-       state->magic = TRIDENT_STATE_MAGIC;
-       init_waitqueue_head(&dmabuf->wait);
-       file->private_data = state;
-
-       /* set default sample format. According to OSS Programmer's */
-       /* Guide  /dev/dsp should be default to unsigned 8-bits, mono, */
-       /* with sample rate 8kHz and /dev/dspW will accept 16-bits sample */
-       if (file->f_mode & FMODE_WRITE) {
-               dmabuf->fmt &= ~TRIDENT_FMT_MASK;
-               if ((minor & 0x0f) == SND_DEV_DSP16)
-                       dmabuf->fmt |= TRIDENT_FMT_16BIT;
-               dmabuf->ossfragshift = 0;
-               dmabuf->ossmaxfrags = 0;
-               dmabuf->subdivision = 0;
-               if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
-                       /* set default channel attribute to normal playback */
-                       dmabuf->channel->attribute = CHANNEL_PB;
-               }
-               spin_lock_irqsave(&card->lock, flags);
-               trident_set_dac_rate(state, 8000);
-               spin_unlock_irqrestore(&card->lock, flags);
-       }
-
-       if (file->f_mode & FMODE_READ) {
-               /* FIXME: Trident 4d can only record in signed 16-bits stereo, */
-               /* 48kHz sample, to be dealed with in trident_set_adc_rate() ?? */
-               dmabuf->fmt &= ~TRIDENT_FMT_MASK;
-               if ((minor & 0x0f) == SND_DEV_DSP16)
-                       dmabuf->fmt |= TRIDENT_FMT_16BIT;
-               dmabuf->ossfragshift = 0;
-               dmabuf->ossmaxfrags = 0;
-               dmabuf->subdivision = 0;
-               if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
-                       /* set default channel attribute to 0x8a80, record from
-                          PCM L/R FIFO and mono = (left + right + 1)/2 */
-                       dmabuf->channel->attribute = (CHANNEL_REC | PCM_LR |
-                                                     MONO_MIX);
-               }
-               spin_lock_irqsave(&card->lock, flags);
-               trident_set_adc_rate(state, 8000);
-               spin_unlock_irqrestore(&card->lock, flags);
-
-               /* Added by Matt Wu 01-05-2001 */
-               if (card->pci_id == PCI_DEVICE_ID_ALI_5451)
-                       card->rec_channel_use_count++;
-       }
-
-       state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
-       mutex_unlock(&card->open_mutex);
-
-       pr_debug("trident: open virtual channel %d, hard channel %d\n",
-                state->virt, dmabuf->channel->num);
-
-       return nonseekable_open(inode, file);
-}
-
-static int
-trident_release(struct inode *inode, struct file *file)
-{
-       struct trident_state *state = (struct trident_state *)file->private_data;
-       struct trident_card *card;
-       struct dmabuf *dmabuf;
-
-       VALIDATE_STATE(state);
-
-       card = state->card;
-       dmabuf = &state->dmabuf;
-
-       if (file->f_mode & FMODE_WRITE) {
-               trident_clear_tail(state);
-               drain_dac(state, file->f_flags & O_NONBLOCK);
-       }
-
-       pr_debug("trident: closing virtual channel %d, hard channel %d\n",
-                state->virt, dmabuf->channel->num);
-
-       /* stop DMA state machine and free DMA buffers/channels */
-       mutex_lock(&card->open_mutex);
-
-       if (file->f_mode & FMODE_WRITE) {
-               stop_dac(state);
-               dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
-               state->card->free_pcm_channel(state->card, dmabuf->channel->num);
-
-               /* Added by Matt Wu */
-               if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-                       if (state->chans_num > 2) {
-                               if (card->multi_channel_use_count-- < 0)
-                                       card->multi_channel_use_count = 0;
-                               if (card->multi_channel_use_count == 0)
-                                       ali_close_multi_channels();
-                               ali_free_other_states_resources(state);
-                       }
-               }
-       }
-       if (file->f_mode & FMODE_READ) {
-               stop_adc(state);
-               dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
-               state->card->free_pcm_channel(state->card, dmabuf->channel->num);
-
-               /* Added by Matt Wu */
-               if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-                       if (card->rec_channel_use_count-- < 0)
-                               card->rec_channel_use_count = 0;
-               }
-       }
-
-       card->states[state->virt] = NULL;
-       kfree(state);
-
-       /* we're covered by the open_mutex */
-       mutex_unlock(&card->open_mutex);
-
-       return 0;
-}
-
-static const struct file_operations trident_audio_fops = {
-       .owner = THIS_MODULE,
-       .llseek = no_llseek,
-       .read = trident_read,
-       .write = trident_write,
-       .poll = trident_poll,
-       .ioctl = trident_ioctl,
-       .mmap = trident_mmap,
-       .open = trident_open,
-       .release = trident_release,
-};
-
-/* trident specific AC97 functions */
-/* Write AC97 codec registers */
-static void
-trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val)
-{
-       struct trident_card *card = (struct trident_card *)codec->private_data;
-       unsigned int address, mask, busy;
-       unsigned short count = 0xffff;
-       unsigned long flags;
-       u32 data;
-
-       data = ((u32) val) << 16;
-
-       switch (card->pci_id) {
-       default:
-       case PCI_DEVICE_ID_SI_7018:
-               address = SI_AC97_WRITE;
-               mask = SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY;
-               if (codec->id)
-                       mask |= SI_AC97_SECONDARY;
-               busy = SI_AC97_BUSY_WRITE;
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-               address = DX_ACR0_AC97_W;
-               mask = busy = DX_AC97_BUSY_WRITE;
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-               address = NX_ACR1_AC97_W;
-               mask = NX_AC97_BUSY_WRITE;
-               if (codec->id)
-                       mask |= NX_AC97_WRITE_SECONDARY;
-               busy = NX_AC97_BUSY_WRITE;
-               break;
-       case PCI_DEVICE_ID_INTERG_5050:
-               address = SI_AC97_WRITE;
-               mask = busy = SI_AC97_BUSY_WRITE;
-               if (codec->id)
-                       mask |= SI_AC97_SECONDARY;
-               break;
-       }
-
-       spin_lock_irqsave(&card->lock, flags);
-       do {
-               if ((inw(TRID_REG(card, address)) & busy) == 0)
-                       break;
-       } while (--count);
-
-       data |= (mask | (reg & AC97_REG_ADDR));
-
-       if (count == 0) {
-               printk(KERN_ERR "trident: AC97 CODEC write timed out.\n");
-               spin_unlock_irqrestore(&card->lock, flags);
-               return;
-       }
-
-       outl(data, TRID_REG(card, address));
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-/* Read AC97 codec registers */
-static u16
-trident_ac97_get(struct ac97_codec *codec, u8 reg)
-{
-       struct trident_card *card = (struct trident_card *)codec->private_data;
-       unsigned int address, mask, busy;
-       unsigned short count = 0xffff;
-       unsigned long flags;
-       u32 data;
-
-       switch (card->pci_id) {
-       default:
-       case PCI_DEVICE_ID_SI_7018:
-               address = SI_AC97_READ;
-               mask = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY;
-               if (codec->id)
-                       mask |= SI_AC97_SECONDARY;
-               busy = SI_AC97_BUSY_READ;
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-               address = DX_ACR1_AC97_R;
-               mask = busy = DX_AC97_BUSY_READ;
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-               if (codec->id)
-                       address = NX_ACR3_AC97_R_SECONDARY;
-               else
-                       address = NX_ACR2_AC97_R_PRIMARY;
-               mask = NX_AC97_BUSY_READ;
-               busy = NX_AC97_BUSY_READ | NX_AC97_BUSY_DATA;
-               break;
-       case PCI_DEVICE_ID_INTERG_5050:
-               address = SI_AC97_READ;
-               mask = busy = SI_AC97_BUSY_READ;
-               if (codec->id)
-                       mask |= SI_AC97_SECONDARY;
-               break;
-       }
-
-       data = (mask | (reg & AC97_REG_ADDR));
-
-       spin_lock_irqsave(&card->lock, flags);
-       outl(data, TRID_REG(card, address));
-       do {
-               data = inl(TRID_REG(card, address));
-               if ((data & busy) == 0)
-                       break;
-       } while (--count);
-       spin_unlock_irqrestore(&card->lock, flags);
-
-       if (count == 0) {
-               printk(KERN_ERR "trident: AC97 CODEC read timed out.\n");
-               data = 0;
-       }
-       return ((u16) (data >> 16));
-}
-
-/* rewrite ac97 read and write mixer register by hulei for ALI*/
-static int
-acquirecodecaccess(struct trident_card *card)
-{
-       u16 wsemamask = 0x6000; /* bit 14..13 */
-       u16 wsemabits;
-       u16 wcontrol;
-       int block = 0;
-       int ncount = 25;
-       while (1) {
-               wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
-               wsemabits = wcontrol & wsemamask;
-
-               if (wsemabits == 0x4000)
-                       return 1;       /* 0x4000 is audio ,then success */
-               if (ncount-- < 0)
-                       break;
-               if (wsemabits == 0) {
-                     unlock:
-                       outl(((u32) (wcontrol & 0x1eff) | 0x00004000),
-                            TRID_REG(card, ALI_AC97_WRITE));
-                       continue;
-               }
-               udelay(20);
-       }
-       if (!block) {
-               pr_debug("accesscodecsemaphore: try unlock\n");
-               block = 1;
-               goto unlock;
-       }
-       return 0;
-}
-
-static void
-releasecodecaccess(struct trident_card *card)
-{
-       unsigned long wcontrol;
-       wcontrol = inl(TRID_REG(card, ALI_AC97_WRITE));
-       outl((wcontrol & 0xffff1eff), TRID_REG(card, ALI_AC97_WRITE));
-}
-
-static int
-waitforstimertick(struct trident_card *card)
-{
-       unsigned long chk1, chk2;
-       unsigned int wcount = 0xffff;
-       chk1 = inl(TRID_REG(card, ALI_STIMER));
-
-       while (1) {
-               chk2 = inl(TRID_REG(card, ALI_STIMER));
-               if ((wcount > 0) && chk1 != chk2)
-                       return 1;
-               if (wcount <= 0)
-                       break;
-               udelay(50);
-       }
-       return 0;
-}
-
-/* Read AC97 codec registers for ALi*/
-static u16
-ali_ac97_get(struct trident_card *card, int secondary, u8 reg)
-{
-       unsigned int address, mask;
-       unsigned int ncount;
-       unsigned long aud_reg;
-       u32 data;
-       u16 wcontrol;
-       unsigned long flags;
-
-       BUG_ON(!card);
-
-       address = ALI_AC97_READ;
-       if (card->revision == ALI_5451_V02) {
-               address = ALI_AC97_WRITE;
-       }
-       mask = ALI_AC97_READ_ACTION | ALI_AC97_AUDIO_BUSY;
-       if (secondary)
-               mask |= ALI_AC97_SECONDARY;
-
-       spin_lock_irqsave(&card->lock, flags);
-
-       if (!acquirecodecaccess(card))
-               printk(KERN_ERR "access codec fail\n");
-
-       wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
-       wcontrol &= 0xfe00;
-       wcontrol |= (0x8000 | reg);
-       outw(wcontrol, TRID_REG(card, ALI_AC97_WRITE));
-
-       data = (mask | (reg & AC97_REG_ADDR));
-
-       if (!waitforstimertick(card)) {
-               printk(KERN_ERR "ali_ac97_read: BIT_CLOCK is dead\n");
-               goto releasecodec;
-       }
-
-       udelay(20);
-
-       ncount = 10;
-
-       while (1) {
-               if ((inw(TRID_REG(card, ALI_AC97_WRITE)) & ALI_AC97_BUSY_READ)
-                   != 0)
-                       break;
-               if (ncount <= 0)
-                       break;
-               if (ncount-- == 1) {
-                       pr_debug("ali_ac97_read :try clear busy flag\n");
-                       aud_reg = inl(TRID_REG(card, ALI_AC97_WRITE));
-                       outl((aud_reg & 0xffff7fff),
-                            TRID_REG(card, ALI_AC97_WRITE));
-               }
-               udelay(10);
-       }
-
-       data = inl(TRID_REG(card, address));
-
-       spin_unlock_irqrestore(&card->lock, flags);
-
-       return ((u16) (data >> 16));
-
-      releasecodec:
-       releasecodecaccess(card);
-       spin_unlock_irqrestore(&card->lock, flags);
-       printk(KERN_ERR "ali_ac97_read: AC97 CODEC read timed out.\n");
-       return 0;
-}
-
-/* Write AC97 codec registers for hulei*/
-static void
-ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val)
-{
-       unsigned int address, mask;
-       unsigned int ncount;
-       u32 data;
-       u16 wcontrol;
-       unsigned long flags;
-
-       data = ((u32) val) << 16;
-
-       BUG_ON(!card);
-
-       address = ALI_AC97_WRITE;
-       mask = ALI_AC97_WRITE_ACTION | ALI_AC97_AUDIO_BUSY;
-       if (secondary)
-               mask |= ALI_AC97_SECONDARY;
-       if (card->revision == ALI_5451_V02)
-               mask |= ALI_AC97_WRITE_MIXER_REGISTER;
-
-       spin_lock_irqsave(&card->lock, flags);
-       if (!acquirecodecaccess(card))
-               printk(KERN_ERR "ali_ac97_write: access codec fail\n");
-
-       wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
-       wcontrol &= 0xff00;
-       wcontrol |= (0x8100 | reg); /* bit 8=1: (ali1535 )reserved/ */
-                                   /* ali1535+ write */
-       outl((data | wcontrol), TRID_REG(card, ALI_AC97_WRITE));
-
-       if (!waitforstimertick(card)) {
-               printk(KERN_ERR "BIT_CLOCK is dead\n");
-               goto releasecodec;
-       }
-
-       ncount = 10;
-       while (1) {
-               wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
-               if (!(wcontrol & 0x8000))
-                       break;
-               if (ncount <= 0)
-                       break;
-               if (ncount-- == 1) {
-                       pr_debug("ali_ac97_set :try clear busy flag!!\n");
-                       outw(wcontrol & 0x7fff,
-                            TRID_REG(card, ALI_AC97_WRITE));
-               }
-               udelay(10);
-       }
-
-      releasecodec:
-       releasecodecaccess(card);
-       spin_unlock_irqrestore(&card->lock, flags);
-       return;
-}
-
-static void
-ali_enable_special_channel(struct trident_state *stat)
-{
-       struct trident_card *card = stat->card;
-       unsigned long s_channels;
-
-       s_channels = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
-       s_channels |= (1 << stat->dmabuf.channel->num);
-       outl(s_channels, TRID_REG(card, ALI_GLOBAL_CONTROL));
-}
-
-static u16
-ali_ac97_read(struct ac97_codec *codec, u8 reg)
-{
-       int id;
-       u16 data;
-       struct trident_card *card = NULL;
-
-       /* Added by Matt Wu */
-       BUG_ON(!codec);
-
-       card = (struct trident_card *) codec->private_data;
-
-       if (!card->mixer_regs_ready)
-               return ali_ac97_get(card, codec->id, reg);
-
-       /*
-        *      FIXME: need to stop this caching some registers
-        */
-       if (codec->id)
-               id = 1;
-       else
-               id = 0;
-
-       data = card->mixer_regs[reg / 2][id];
-       return data;
-}
-
-static void
-ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val)
-{
-       int id;
-       struct trident_card *card;
-
-       /*  Added by Matt Wu */
-       BUG_ON(!codec);
-
-       card = (struct trident_card *) codec->private_data;
-
-       if (!card->mixer_regs_ready) {
-               ali_ac97_set(card, codec->id, reg, val);
-               return;
-       }
-
-       if (codec->id)
-               id = 1;
-       else
-               id = 0;
-
-       card->mixer_regs[reg / 2][id] = val;
-       ali_ac97_set(card, codec->id, reg, val);
-}
-
-/*
-flag:  ALI_SPDIF_OUT_TO_SPDIF_OUT
-       ALI_PCM_TO_SPDIF_OUT
-*/
-
-static void
-ali_setup_spdif_out(struct trident_card *card, int flag)
-{
-       unsigned long spdif;
-       unsigned char ch;
-
-       char temp;
-       struct pci_dev *pci_dev = NULL;
-
-       pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
-                                pci_dev);
-       if (pci_dev == NULL)
-               return;
-       pci_read_config_byte(pci_dev, 0x61, &temp);
-       temp |= 0x40;
-       pci_write_config_byte(pci_dev, 0x61, temp);
-       pci_read_config_byte(pci_dev, 0x7d, &temp);
-       temp |= 0x01;
-       pci_write_config_byte(pci_dev, 0x7d, temp);
-       pci_read_config_byte(pci_dev, 0x7e, &temp);
-       temp &= (~0x20);
-       temp |= 0x10;
-       pci_write_config_byte(pci_dev, 0x7e, temp);
-
-       pci_dev_put(pci_dev);
-
-       ch = inb(TRID_REG(card, ALI_SCTRL));
-       outb(ch | ALI_SPDIF_OUT_ENABLE, TRID_REG(card, ALI_SCTRL));
-       ch = inb(TRID_REG(card, ALI_SPDIF_CTRL));
-       outb(ch & ALI_SPDIF_OUT_CH_STATUS, TRID_REG(card, ALI_SPDIF_CTRL));
-
-       if (flag & ALI_SPDIF_OUT_TO_SPDIF_OUT) {
-               spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
-               spdif |= ALI_SPDIF_OUT_CH_ENABLE;
-               spdif &= ALI_SPDIF_OUT_SEL_SPDIF;
-               outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-               spdif = inw(TRID_REG(card, ALI_SPDIF_CS));
-               if (flag & ALI_SPDIF_OUT_NON_PCM)
-                       spdif |= 0x0002;
-               else
-                       spdif &= (~0x0002);
-               outw(spdif, TRID_REG(card, ALI_SPDIF_CS));
-       } else {
-               spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
-               spdif |= ALI_SPDIF_OUT_SEL_PCM;
-               outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-       }
-}
-
-static void
-ali_disable_special_channel(struct trident_card *card, int ch)
-{
-       unsigned long sc;
-
-       sc = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
-       sc &= ~(1 << ch);
-       outl(sc, TRID_REG(card, ALI_GLOBAL_CONTROL));
-}
-
-static void
-ali_disable_spdif_in(struct trident_card *card)
-{
-       unsigned long spdif;
-
-       spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
-       spdif &= (~ALI_SPDIF_IN_SUPPORT);
-       outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
-       ali_disable_special_channel(card, ALI_SPDIF_IN_CHANNEL);
-}
-
-static void
-ali_setup_spdif_in(struct trident_card *card)
-{
-       unsigned long spdif;
-
-       //Set SPDIF IN Supported
-       spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
-       spdif |= ALI_SPDIF_IN_SUPPORT;
-       outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
-       //Set SPDIF IN Rec
-       spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
-       spdif |= ALI_SPDIF_IN_CH_ENABLE;
-       outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
-       spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
-       spdif |= ALI_SPDIF_IN_CH_STATUS;
-       outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
-/*
-       spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
-       spdif |= ALI_SPDIF_IN_FUNC_ENABLE;
-       outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
-*/
-}
-
-static void
-ali_delay(struct trident_card *card, int interval)
-{
-       unsigned long begintimer, currenttimer;
-
-       begintimer = inl(TRID_REG(card, ALI_STIMER));
-       currenttimer = inl(TRID_REG(card, ALI_STIMER));
-
-       while (currenttimer < begintimer + interval)
-               currenttimer = inl(TRID_REG(card, ALI_STIMER));
-}
-
-static void
-ali_detect_spdif_rate(struct trident_card *card)
-{
-       u16 wval = 0;
-       u16 count = 0;
-       u8 bval = 0, R1 = 0, R2 = 0;
-
-       bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
-       bval |= 0x02;
-       outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
-
-       bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
-       bval |= 0x1F;
-       outb(bval, TRID_REG(card, ALI_SPDIF_CTRL + 1));
-
-       while (((R1 < 0x0B) || (R1 > 0x0E)) && (R1 != 0x12) &&
-              count <= 50000) {
-               count++;
-
-               ali_delay(card, 6);
-
-               bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
-               R1 = bval & 0x1F;
-       }
-
-       if (count > 50000) {
-               printk(KERN_WARNING "trident: Error in "
-                      "ali_detect_spdif_rate!\n");
-               return;
-       }
-
-       count = 0;
-
-       while (count <= 50000) {
-               count++;
-
-               ali_delay(card, 6);
-
-               bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
-               R2 = bval & 0x1F;
-
-               if (R2 != R1)
-                       R1 = R2;
-               else
-                       break;
-       }
-
-       if (count > 50000) {
-               printk(KERN_WARNING "trident: Error in "
-                      "ali_detect_spdif_rate!\n");
-               return;
-       }
-
-       switch (R2) {
-       case 0x0b:
-       case 0x0c:
-       case 0x0d:
-       case 0x0e:
-               wval = inw(TRID_REG(card, ALI_SPDIF_CTRL + 2));
-               wval &= 0xE0F0;
-               wval |= (u16) 0x09 << 8 | (u16) 0x05;
-               outw(wval, TRID_REG(card, ALI_SPDIF_CTRL + 2));
-
-               bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3)) & 0xF0;
-               outb(bval | 0x02, TRID_REG(card, ALI_SPDIF_CS + 3));
-               break;
-
-       case 0x12:
-               wval = inw(TRID_REG(card, ALI_SPDIF_CTRL + 2));
-               wval &= 0xE0F0;
-               wval |= (u16) 0x0E << 8 | (u16) 0x08;
-               outw(wval, TRID_REG(card, ALI_SPDIF_CTRL + 2));
-
-               bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3)) & 0xF0;
-               outb(bval | 0x03, TRID_REG(card, ALI_SPDIF_CS + 3));
-               break;
-
-       default:
-               break;
-       }
-
-}
-
-static unsigned int
-ali_get_spdif_in_rate(struct trident_card *card)
-{
-       u32 dwRate = 0;
-       u8 bval = 0;
-
-       ali_detect_spdif_rate(card);
-
-       bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
-       bval &= 0x7F;
-       bval |= 0x40;
-       outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
-
-       bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3));
-       bval &= 0x0F;
-
-       switch (bval) {
-       case 0:
-               dwRate = 44100;
-               break;
-       case 1:
-               dwRate = 48000;
-               break;
-       case 2:
-               dwRate = 32000;
-               break;
-       default:
-               // Error occurs
-               break;
-       }
-
-       return dwRate;
-
-}
-
-static int
-ali_close_multi_channels(void)
-{
-       char temp = 0;
-       struct pci_dev *pci_dev = NULL;
-
-       pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
-                                pci_dev);
-       if (pci_dev == NULL)
-               return -1;
-
-       pci_read_config_byte(pci_dev, 0x59, &temp);
-       temp &= ~0x80;
-       pci_write_config_byte(pci_dev, 0x59, temp);
-
-       pci_dev_put(pci_dev);
-
-       pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
-                                NULL);
-       if (pci_dev == NULL)
-               return -1;
-
-       pci_read_config_byte(pci_dev, 0xB8, &temp);
-       temp &= ~0x20;
-       pci_write_config_byte(pci_dev, 0xB8, temp);
-
-       pci_dev_put(pci_dev);
-
-       return 0;
-}
-
-static int
-ali_setup_multi_channels(struct trident_card *card, int chan_nums)
-{
-       unsigned long dwValue;
-       char temp = 0;
-       struct pci_dev *pci_dev = NULL;
-
-       pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
-                                pci_dev);
-       if (pci_dev == NULL)
-               return -1;
-       pci_read_config_byte(pci_dev, 0x59, &temp);
-       temp |= 0x80;
-       pci_write_config_byte(pci_dev, 0x59, temp);
-
-       pci_dev_put(pci_dev);
-
-       pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
-                                NULL);
-       if (pci_dev == NULL)
-               return -1;
-       pci_read_config_byte(pci_dev, (int) 0xB8, &temp);
-       temp |= 0x20;
-       pci_write_config_byte(pci_dev, (int) 0xB8, (u8) temp);
-
-       pci_dev_put(pci_dev);
-
-       if (chan_nums == 6) {
-               dwValue = inl(TRID_REG(card, ALI_SCTRL)) | 0x000f0000;
-               outl(dwValue, TRID_REG(card, ALI_SCTRL));
-               mdelay(4);
-               dwValue = inl(TRID_REG(card, ALI_SCTRL));
-               if (dwValue & 0x2000000) {
-                       ali_ac97_write(card->ac97_codec[0], 0x02, 8080);
-                       ali_ac97_write(card->ac97_codec[0], 0x36, 0);
-                       ali_ac97_write(card->ac97_codec[0], 0x38, 0);
-                       /*
-                        *      On a board with a single codec you won't get the
-                        *      surround. On other boards configure it.
-                        */
-                       if (card->ac97_codec[1] != NULL) {
-                               ali_ac97_write(card->ac97_codec[1], 0x36, 0);
-                               ali_ac97_write(card->ac97_codec[1], 0x38, 0);
-                               ali_ac97_write(card->ac97_codec[1], 0x02, 0x0606);
-                               ali_ac97_write(card->ac97_codec[1], 0x18, 0x0303);
-                               ali_ac97_write(card->ac97_codec[1], 0x74, 0x3);
-                       }
-                       return 1;
-               }
-       }
-       return -EINVAL;
-}
-
-static void
-ali_free_pcm_channel(struct trident_card *card, unsigned int channel)
-{
-       int bank;
-
-       if (channel > 31)
-               return;
-
-       bank = channel >> 5;
-       channel = channel & 0x1f;
-
-       card->banks[bank].bitmap &= ~(1 << (channel));
-}
-
-static int
-ali_allocate_other_states_resources(struct trident_state *state, int chan_nums)
-{
-       struct trident_card *card = state->card;
-       struct trident_state *s;
-       int i, state_count = 0;
-       struct trident_pcm_bank *bank;
-       struct trident_channel *channel;
-       unsigned long num;
-
-       bank = &card->banks[BANK_A];
-
-       if (chan_nums != 6)
-               return 0;
-
-       for (i = 0; (i < ALI_CHANNELS) && (state_count != 4); i++) {
-               if (card->states[i])
-                       continue;
-
-               num = ali_multi_channels_5_1[state_count];
-               if (!(bank->bitmap & (1 << num))) {
-                       bank->bitmap |= 1 << num;
-                       channel = &bank->channels[num];
-                       channel->num = num;
-               } else {
-                       state_count--;
-                       for (; state_count >= 0; state_count--) {
-                               kfree(state->other_states[state_count]);
-                               num = ali_multi_channels_5_1[state_count];
-                                       ali_free_pcm_channel(card, num);
-                       }
-                       return -EBUSY;
-               }
-               s = card->states[i] = kzalloc(sizeof(*state), GFP_KERNEL);
-               if (!s) {
-                       num = ali_multi_channels_5_1[state_count];
-                       ali_free_pcm_channel(card, num);
-                       state_count--;
-                       for (; state_count >= 0; state_count--) {
-                               num = ali_multi_channels_5_1[state_count];
-                               ali_free_pcm_channel(card, num);
-                               kfree(state->other_states[state_count]);
-                       }
-                       return -ENOMEM;
-               }
-
-               s->dmabuf.channel = channel;
-               s->dmabuf.ossfragshift = s->dmabuf.ossmaxfrags =
-                       s->dmabuf.subdivision = 0;
-               init_waitqueue_head(&s->dmabuf.wait);
-               s->magic = card->magic;
-               s->card = card;
-               s->virt = i;
-               ali_enable_special_channel(s);
-               state->other_states[state_count++] = s;
-       }
-
-       if (state_count != 4) {
-               state_count--;
-               for (; state_count >= 0; state_count--) {
-                       kfree(state->other_states[state_count]);
-                       num = ali_multi_channels_5_1[state_count];
-                       ali_free_pcm_channel(card, num);
-               }
-               return -EBUSY;
-       }
-       return 0;
-}
-
-#ifdef CONFIG_PM
-/* save registers for ALi Power Management */
-static struct ali_saved_registers {
-       unsigned long global_regs[ALI_GLOBAL_REGS];
-       unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
-       unsigned mixer_regs[ALI_MIXER_REGS];
-} ali_registers;
-
-static void
-ali_save_regs(struct trident_card *card)
-{
-       unsigned long flags;
-       int i, j;
-
-       spin_lock_irqsave(&card->lock, flags);
-
-       ali_registers.global_regs[0x2c] = inl(TRID_REG(card, T4D_MISCINT));
-       //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A));
-       ali_registers.global_regs[0x21] = inl(TRID_REG(card, T4D_STOP_A));
-
-       //disable all IRQ bits
-       outl(ALI_DISABLE_ALL_IRQ, TRID_REG(card, T4D_MISCINT));
-
-       for (i = 1; i < ALI_MIXER_REGS; i++)
-               ali_registers.mixer_regs[i] = ali_ac97_read(card->ac97_codec[0],
-                                                           i * 2);
-
-       for (i = 0; i < ALI_GLOBAL_REGS; i++) {
-               if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A))
-                       continue;
-               ali_registers.global_regs[i] = inl(TRID_REG(card, i * 4));
-       }
-
-       for (i = 0; i < ALI_CHANNELS; i++) {
-               outb(i, TRID_REG(card, T4D_LFO_GC_CIR));
-               for (j = 0; j < ALI_CHANNEL_REGS; j++)
-                       ali_registers.channel_regs[i][j] = inl(TRID_REG(card,
-                                                                       j * 4 + 0xe0));
-       }
-
-       //Stop all HW channel
-       outl(ALI_STOP_ALL_CHANNELS, TRID_REG(card, T4D_STOP_A));
-
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void
-ali_restore_regs(struct trident_card *card)
-{
-       unsigned long flags;
-       int i, j;
-
-       spin_lock_irqsave(&card->lock, flags);
-
-       for (i = 1; i < ALI_MIXER_REGS; i++)
-               ali_ac97_write(card->ac97_codec[0], i * 2,
-                              ali_registers.mixer_regs[i]);
-
-       for (i = 0; i < ALI_CHANNELS; i++) {
-               outb(i, TRID_REG(card, T4D_LFO_GC_CIR));
-               for (j = 0; j < ALI_CHANNEL_REGS; j++)
-                       outl(ali_registers.channel_regs[i][j],
-                            TRID_REG(card, j * 4 + 0xe0));
-       }
-
-       for (i = 0; i < ALI_GLOBAL_REGS; i++) {
-               if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A) ||
-                   (i * 4 == T4D_START_A))
-                       continue;
-               outl(ali_registers.global_regs[i], TRID_REG(card, i * 4));
-       }
-
-       //start HW channel
-       outl(ali_registers.global_regs[0x20], TRID_REG(card, T4D_START_A));
-       //restore IRQ enable bits
-       outl(ali_registers.global_regs[0x2c], TRID_REG(card, T4D_MISCINT));
-
-       spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static int
-trident_suspend(struct pci_dev *dev, pm_message_t unused)
-{
-       struct trident_card *card = pci_get_drvdata(dev);
-
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               ali_save_regs(card);
-       }
-       return 0;
-}
-
-static int
-trident_resume(struct pci_dev *dev)
-{
-       struct trident_card *card = pci_get_drvdata(dev);
-
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               ali_restore_regs(card);
-       }
-       return 0;
-}
-#endif
-
-static struct trident_channel *
-ali_alloc_pcm_channel(struct trident_card *card)
-{
-       struct trident_pcm_bank *bank;
-       int idx;
-
-       bank = &card->banks[BANK_A];
-
-       if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) &
-           (ALI_SPDIF_OUT_CH_ENABLE)) {
-               idx = ALI_SPDIF_OUT_CHANNEL;
-               if (!(bank->bitmap & (1 << idx))) {
-                       struct trident_channel *channel = &bank->channels[idx];
-                       bank->bitmap |= 1 << idx;
-                       channel->num = idx;
-                       return channel;
-               }
-       }
-
-       for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST;
-            idx++) {
-               if (!(bank->bitmap & (1 << idx))) {
-                       struct trident_channel *channel = &bank->channels[idx];
-                       bank->bitmap |= 1 << idx;
-                       channel->num = idx;
-                       return channel;
-               }
-       }
-
-       /* no more free channels avaliable */
-#if 0
-       printk(KERN_ERR "ali: no more channels available on Bank A.\n");
-#endif /* 0 */
-       return NULL;
-}
-
-static struct trident_channel *
-ali_alloc_rec_pcm_channel(struct trident_card *card)
-{
-       struct trident_pcm_bank *bank;
-       int idx;
-
-       if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT)
-               idx = ALI_SPDIF_IN_CHANNEL;
-       else
-               idx = ALI_PCM_IN_CHANNEL;
-
-       bank = &card->banks[BANK_A];
-
-       if (!(bank->bitmap & (1 << idx))) {
-               struct trident_channel *channel = &bank->channels[idx];
-               bank->bitmap |= 1 << idx;
-               channel->num = idx;
-               return channel;
-       }
-
-       /* no free recordable channels avaliable */
-#if 0
-       printk(KERN_ERR "ali: no recordable channels available on Bank A.\n");
-#endif /* 0 */
-       return NULL;
-}
-
-static void
-ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate)
-{
-       unsigned char ch_st_sel;
-       unsigned short status_rate;
-
-       switch (rate) {
-       case 44100:
-               status_rate = 0;
-               break;
-       case 32000:
-               status_rate = 0x300;
-               break;
-       case 48000:
-       default:
-               status_rate = 0x200;
-               break;
-       }
-
-       /* select spdif_out */
-       ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS;
-
-       ch_st_sel |= 0x80;      /* select right */
-       outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
-       outb(status_rate | 0x20, TRID_REG(card, ALI_SPDIF_CS + 2));
-
-       ch_st_sel &= (~0x80);   /* select left */
-       outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
-       outw(status_rate | 0x10, TRID_REG(card, ALI_SPDIF_CS + 2));
-}
-
-static void
-ali_address_interrupt(struct trident_card *card)
-{
-       int i, channel;
-       struct trident_state *state;
-       u32 mask, channel_mask;
-
-       mask = trident_get_interrupt_mask(card, 0);
-       for (i = 0; i < NR_HW_CH; i++) {
-               if ((state = card->states[i]) == NULL)
-                       continue;
-               channel = state->dmabuf.channel->num;
-               if ((channel_mask = 1 << channel) & mask) {
-                       mask &= ~channel_mask;
-                       trident_ack_channel_interrupt(card, channel);
-                       udelay(100);
-                       state->dmabuf.update_flag |= ALI_ADDRESS_INT_UPDATE;
-                       trident_update_ptr(state);
-               }
-       }
-       if (mask) {
-               for (i = 0; i < NR_HW_CH; i++) {
-                       if (mask & (1 << i)) {
-                               printk("ali: spurious channel irq %d.\n", i);
-                               trident_ack_channel_interrupt(card, i);
-                               trident_stop_voice(card, i);
-                               trident_disable_voice_irq(card, i);
-                       }
-               }
-       }
-}
-
-/* Updating the values of counters of other_states' DMAs without lock
-protection is no harm because all DMAs of multi-channels and interrupt
-depend on a master state's DMA, and changing the counters of the master
-state DMA is protected by a spinlock.
-*/
-static int
-ali_write_5_1(struct trident_state *state, const char __user *buf,
-             int cnt_for_multi_channel, unsigned int *copy_count,
-             unsigned int *state_cnt)
-{
-
-       struct dmabuf *dmabuf = &state->dmabuf;
-       struct dmabuf *dmabuf_temp;
-       const char __user *buffer = buf;
-       unsigned swptr, other_dma_nums, sample_s;
-       unsigned int i, loop;
-
-       other_dma_nums = 4;
-       sample_s = sample_size[dmabuf->fmt] >> 1;
-       swptr = dmabuf->swptr;
-
-       if ((i = state->multi_channels_adjust_count) > 0) {
-               if (i == 1) {
-                       if (copy_from_user(dmabuf->rawbuf + swptr,
-                                          buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-                       i--;
-                       (*state_cnt) += sample_s;
-                       state->multi_channels_adjust_count++;
-               } else
-                       i = i - (state->chans_num - other_dma_nums);
-               for (; (i < other_dma_nums) && (cnt_for_multi_channel > 0); i++) {
-                       dmabuf_temp = &state->other_states[i]->dmabuf;
-                       if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
-                                          buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-               }
-               if (cnt_for_multi_channel == 0)
-                       state->multi_channels_adjust_count += i;
-       }
-       if (cnt_for_multi_channel > 0) {
-               loop = cnt_for_multi_channel / (state->chans_num * sample_s);
-               for (i = 0; i < loop; i++) {
-                       if (copy_from_user(dmabuf->rawbuf + swptr, buffer,
-                                          sample_s * 2))
-                               return -EFAULT;
-                       seek_offset(swptr, buffer, cnt_for_multi_channel,
-                                   sample_s * 2, *copy_count);
-                       (*state_cnt) += (sample_s * 2);
-
-                       dmabuf_temp = &state->other_states[0]->dmabuf;
-                       if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
-                                          buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-
-                       dmabuf_temp = &state->other_states[1]->dmabuf;
-                       if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
-                                          buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-
-                       dmabuf_temp = &state->other_states[2]->dmabuf;
-                       if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
-                                          buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-
-                       dmabuf_temp = &state->other_states[3]->dmabuf;
-                       if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
-                                          buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-               }
-
-               if (cnt_for_multi_channel > 0) {
-                       state->multi_channels_adjust_count = cnt_for_multi_channel / sample_s;
-
-                       if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s))
-                               return -EFAULT;
-                       seek_offset(swptr, buffer, cnt_for_multi_channel,
-                                   sample_s, *copy_count);
-                       (*state_cnt) += sample_s;
-
-                       if (cnt_for_multi_channel > 0) {
-                               if (copy_from_user(dmabuf->rawbuf + swptr,
-                                                  buffer, sample_s))
-                                       return -EFAULT;
-                               seek_offset(swptr, buffer, cnt_for_multi_channel,
-                                           sample_s, *copy_count);
-                               (*state_cnt) += sample_s;
-
-                               if (cnt_for_multi_channel > 0) {
-                                       int diff = state->chans_num - other_dma_nums;
-                                       loop = state->multi_channels_adjust_count - diff;
-                                       for (i = 0; i < loop; i++) {
-                                               dmabuf_temp = &state->other_states[i]->dmabuf;
-                                               if (copy_from_user(dmabuf_temp->rawbuf +
-                                                                  dmabuf_temp->swptr,
-                                                                  buffer, sample_s))
-                                                       return -EFAULT;
-                                               seek_offset(dmabuf_temp->swptr, buffer,
-                                                           cnt_for_multi_channel,
-                                                           sample_s, *copy_count);
-                                       }
-                               }
-                       }
-               } else
-                       state->multi_channels_adjust_count = 0;
-       }
-       for (i = 0; i < other_dma_nums; i++) {
-               dmabuf_temp = &state->other_states[i]->dmabuf;
-               dmabuf_temp->swptr = dmabuf_temp->swptr % dmabuf_temp->dmasize;
-       }
-       return *state_cnt;
-}
-
-static void
-ali_free_other_states_resources(struct trident_state *state)
-{
-       int i;
-       struct trident_card *card = state->card;
-       struct trident_state *s;
-       unsigned other_states_count;
-
-       other_states_count = state->chans_num - 2; /* except PCM L/R channels */
-       for (i = 0; i < other_states_count; i++) {
-               s = state->other_states[i];
-               dealloc_dmabuf(&s->dmabuf, card->pci_dev);
-               ali_disable_special_channel(s->card, s->dmabuf.channel->num);
-               state->card->free_pcm_channel(s->card, s->dmabuf.channel->num);
-               card->states[s->virt] = NULL;
-               kfree(s);
-       }
-}
-
-static struct proc_dir_entry *res;
-
-static int
-ali_write_proc(struct file *file, const char __user *buffer, unsigned long count, void *data)
-{
-       struct trident_card *card = (struct trident_card *) data;
-       unsigned long flags;
-       char c;
-
-       if (count < 0)
-               return -EINVAL;
-       if (count == 0)
-               return 0;
-       if (get_user(c, buffer))
-               return -EFAULT;
-
-       spin_lock_irqsave(&card->lock, flags);
-       switch (c) {
-       case '0':
-               ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
-               ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
-               break;
-       case '1':
-               ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
-                                   ALI_SPDIF_OUT_PCM);
-               break;
-       case '2':
-               ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
-                                   ALI_SPDIF_OUT_NON_PCM);
-               break;
-       case '3':
-               ali_disable_spdif_in(card);     //default
-               break;
-       case '4':
-               ali_setup_spdif_in(card);
-               break;
-       }
-       spin_unlock_irqrestore(&card->lock, flags);
-
-       return count;
-}
-
-/* OSS /dev/mixer file operation methods */
-static int
-trident_open_mixdev(struct inode *inode, struct file *file)
-{
-       int i = 0;
-       int minor = iminor(inode);
-       struct trident_card *card = devs;
-
-       for (card = devs; card != NULL; card = card->next)
-               for (i = 0; i < NR_AC97; i++)
-                       if (card->ac97_codec[i] != NULL &&
-                           card->ac97_codec[i]->dev_mixer == minor)
-                               goto match;
-
-       if (!card) {
-               return -ENODEV;
-       }
-      match:
-       file->private_data = card->ac97_codec[i];
-
-       return nonseekable_open(inode, file);
-}
-
-static int
-trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
-                    unsigned long arg)
-{
-       struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
-
-       return codec->mixer_ioctl(codec, cmd, arg);
-}
-
-static const struct file_operations trident_mixer_fops = {
-       .owner = THIS_MODULE,
-       .llseek = no_llseek,
-       .ioctl = trident_ioctl_mixdev,
-       .open = trident_open_mixdev,
-};
-
-static int
-ali_reset_5451(struct trident_card *card)
-{
-       struct pci_dev *pci_dev = NULL;
-       unsigned int dwVal;
-       unsigned short wCount, wReg;
-
-       pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
-                                pci_dev);
-       if (pci_dev == NULL)
-               return -1;
-
-       pci_read_config_dword(pci_dev, 0x7c, &dwVal);
-       pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
-       udelay(5000);
-       pci_read_config_dword(pci_dev, 0x7c, &dwVal);
-       pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
-       udelay(5000);
-       pci_dev_put(pci_dev);
-
-       pci_dev = card->pci_dev;
-       if (pci_dev == NULL)
-               return -1;
-
-       pci_read_config_dword(pci_dev, 0x44, &dwVal);
-       pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
-       udelay(500);
-       pci_read_config_dword(pci_dev, 0x44, &dwVal);
-       pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
-       udelay(5000);
-
-       /* TODO: recognize if we have a PM capable codec and only do this */
-       /* if the codec is PM capable */
-       wCount = 2000;
-       while (wCount--) {
-               wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
-               if ((wReg & 0x000f) == 0x000f)
-                       return 0;
-               udelay(5000);
-       }
-       /* This is non fatal if you have a non PM capable codec.. */
-       return 0;
-}
-
-/* AC97 codec initialisation. */
-static int __devinit
-trident_ac97_init(struct trident_card *card)
-{
-       int num_ac97 = 0;
-       unsigned long ready_2nd = 0;
-       struct ac97_codec *codec;
-       int i = 0;
-
-       /* initialize controller side of AC link, and find out if secondary codes
-          really exist */
-       switch (card->pci_id) {
-       case PCI_DEVICE_ID_ALI_5451:
-               if (ali_reset_5451(card)) {
-                       printk(KERN_ERR "trident_ac97_init: error "
-                              "resetting 5451.\n");
-                       return -1;
-               }
-               outl(0x80000001, TRID_REG(card, ALI_GLOBAL_CONTROL));
-               outl(0x00000000, TRID_REG(card, T4D_AINTEN_A));
-               outl(0xffffffff, TRID_REG(card, T4D_AINT_A));
-               outl(0x00000000, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
-               outb(0x10, TRID_REG(card, ALI_MPUR2));
-               ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
-               ready_2nd &= 0x3fff;
-               outl(ready_2nd | PCMOUT | 0x8000, TRID_REG(card, ALI_SCTRL));
-               ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
-               ready_2nd &= SI_AC97_SECONDARY_READY;
-               if (card->revision < ALI_5451_V02)
-                       ready_2nd = 0;
-               break;
-       case PCI_DEVICE_ID_SI_7018:
-               /* disable AC97 GPIO interrupt */
-               outl(0x00, TRID_REG(card, SI_AC97_GPIO));
-               /* when power up the AC link is in cold reset mode so stop it */
-               outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT | SECONDARY_ID,
-                    TRID_REG(card, SI_SERIAL_INTF_CTRL));
-               /* it take a long time to recover from a cold reset */
-               /* (especially when you have more than one codec) */
-               udelay(2000);
-               ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
-               ready_2nd &= SI_AC97_SECONDARY_READY;
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
-               /* playback on */
-               outl(DX_AC97_PLAYBACK, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
-               break;
-       case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
-               /* enable AC97 Output Slot 3,4 (PCM Left/Right Playback) */
-               outl(NX_AC97_PCM_OUTPUT, TRID_REG(card, NX_ACR0_AC97_COM_STAT));
-               ready_2nd = inl(TRID_REG(card, NX_ACR0_AC97_COM_STAT));
-               ready_2nd &= NX_AC97_SECONDARY_READY;
-               break;
-       case PCI_DEVICE_ID_INTERG_5050:
-               /* disable AC97 GPIO interrupt */
-               outl(0x00, TRID_REG(card, SI_AC97_GPIO));
-               /* when power up, the AC link is in cold reset mode, so stop it */
-               outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT,
-                    TRID_REG(card, SI_SERIAL_INTF_CTRL));
-               /* it take a long time to recover from a cold reset (especially */
-               /* when you have more than one codec) */
-               udelay(2000);
-               ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
-               ready_2nd &= SI_AC97_SECONDARY_READY;
-               break;
-       }
-
-       for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
-               if ((codec = ac97_alloc_codec()) == NULL)
-                       return -ENOMEM;
-
-               /* initialize some basic codec information, other fields */
-               /* will be filled in ac97_probe_codec */
-               codec->private_data = card;
-               codec->id = num_ac97;
-
-               if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-                       codec->codec_read = ali_ac97_read;
-                       codec->codec_write = ali_ac97_write;
-               } else {
-                       codec->codec_read = trident_ac97_get;
-                       codec->codec_write = trident_ac97_set;
-               }
-
-               if (ac97_probe_codec(codec) == 0)
-                       break;
-
-               codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1);
-               if (codec->dev_mixer < 0) {
-                       printk(KERN_ERR "trident: couldn't register mixer!\n");
-                       ac97_release_codec(codec);
-                       break;
-               }
-
-               card->ac97_codec[num_ac97] = codec;
-
-               /* if there is no secondary codec at all, don't probe any more */
-               if (!ready_2nd)
-                       break;
-       }
-
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
-                       if (card->ac97_codec[num_ac97] == NULL)
-                               break;
-                       for (i = 0; i < 64; i++) {
-                               u16 reg = ali_ac97_get(card, num_ac97, i * 2);
-                               card->mixer_regs[i][num_ac97] = reg;
-                       }
-               }
-       }
-       return num_ac97 + 1;
-}
-
-#ifdef SUPPORT_JOYSTICK
-/* Gameport functions for the cards ADC gameport */
-
-static unsigned char trident_game_read(struct gameport *gameport)
-{
-       struct trident_card *card = gameport->port_data;
-
-       return inb(TRID_REG(card, T4D_GAME_LEG));
-}
-
-static void trident_game_trigger(struct gameport *gameport)
-{
-       struct trident_card *card = gameport->port_data;
-
-       outb(0xff, TRID_REG(card, T4D_GAME_LEG));
-}
-
-static int trident_game_cooked_read(struct gameport *gameport,
-                                   int *axes, int *buttons)
-{
-       struct trident_card *card = gameport->port_data;
-       int i;
-
-       *buttons = (~inb(TRID_REG(card, T4D_GAME_LEG)) >> 4) & 0xf;
-
-       for (i = 0; i < 4; i++) {
-               axes[i] = inw(TRID_REG(card, T4D_GAME_AXD) + i * sizeof (u16));
-               if (axes[i] == 0xffff)
-                       axes[i] = -1;
-       }
-
-       return 0;
-}
-
-static int trident_game_open(struct gameport *gameport, int mode)
-{
-       struct trident_card *card = gameport->port_data;
-
-       switch (mode) {
-       case GAMEPORT_MODE_COOKED:
-               outb(0x80, TRID_REG(card, T4D_GAME_CR));
-               msleep(20);
-               return 0;
-       case GAMEPORT_MODE_RAW:
-               outb(0x00, TRID_REG(card, T4D_GAME_CR));
-               return 0;
-       default:
-               return -1;
-       }
-
-       return 0;
-}
-
-static int __devinit trident_register_gameport(struct trident_card *card)
-{
-       struct gameport *gp;
-
-       card->gameport = gp = gameport_allocate_port();
-       if (!gp) {
-               printk(KERN_ERR "trident: can not allocate memory for gameport\n");
-               return -ENOMEM;
-       }
-
-       gameport_set_name(gp, "Trident 4DWave");
-       gameport_set_phys(gp, "pci%s/gameport0", pci_name(card->pci_dev));
-       gp->read = trident_game_read;
-       gp->trigger = trident_game_trigger;
-       gp->cooked_read = trident_game_cooked_read;
-       gp->open = trident_game_open;
-       gp->fuzz = 64;
-       gp->port_data = card;
-
-       gameport_register_port(gp);
-
-       return 0;
-}
-
-static inline void trident_unregister_gameport(struct trident_card *card)
-{
-       if (card->gameport)
-               gameport_unregister_port(card->gameport);
-}
-
-#else
-static inline int trident_register_gameport(struct trident_card *card) { return -ENOSYS; }
-static inline void trident_unregister_gameport(struct trident_card *card) { }
-#endif /* SUPPORT_JOYSTICK */
-
-/* install the driver, we do not allocate hardware channel nor DMA buffer */
-/* now, they are defered until "ACCESS" time (in prog_dmabuf called by */
-/* open/read/write/ioctl/mmap) */
-static int __devinit
-trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
-{
-       unsigned long iobase;
-       struct trident_card *card;
-       u8 bits;
-       u8 revision;
-       int i = 0;
-       u16 temp;
-       struct pci_dev *pci_dev_m1533 = NULL;
-       int rc = -ENODEV;
-       u64 dma_mask;
-
-       if (pci_enable_device(pci_dev))
-               goto out;
-
-       if (pci_dev->device == PCI_DEVICE_ID_ALI_5451)
-               dma_mask = ALI_DMA_MASK;
-       else
-               dma_mask = TRIDENT_DMA_MASK;
-       if (pci_set_dma_mask(pci_dev, dma_mask)) {
-               printk(KERN_ERR "trident: architecture does not support"
-                      " %s PCI busmaster DMA\n",
-                      pci_dev->device == PCI_DEVICE_ID_ALI_5451 ?
-                      "32-bit" : "30-bit");
-               goto out;
-       }
-       pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
-
-       if (pci_id->device == PCI_DEVICE_ID_INTERG_5050)
-               iobase = pci_resource_start(pci_dev, 1);
-       else
-               iobase = pci_resource_start(pci_dev, 0);
-
-       if (!request_region(iobase, 256, card_names[pci_id->driver_data])) {
-               printk(KERN_ERR "trident: can't allocate I/O space at "
-                      "0x%4.4lx\n", iobase);
-               goto out;
-       }
-
-       rc = -ENOMEM;
-       if ((card = kzalloc(sizeof(*card), GFP_KERNEL)) == NULL) {
-               printk(KERN_ERR "trident: out of memory\n");
-               goto out_release_region;
-       }
-
-       init_timer(&card->timer);
-       card->iobase = iobase;
-       card->pci_dev = pci_dev_get(pci_dev);
-       card->pci_id = pci_id->device;
-       card->revision = revision;
-       card->irq = pci_dev->irq;
-       card->next = devs;
-       card->magic = TRIDENT_CARD_MAGIC;
-       card->banks[BANK_A].addresses = &bank_a_addrs;
-       card->banks[BANK_A].bitmap = 0UL;
-       card->banks[BANK_B].addresses = &bank_b_addrs;
-       card->banks[BANK_B].bitmap = 0UL;
-
-       mutex_init(&card->open_mutex);
-       spin_lock_init(&card->lock);
-       init_timer(&card->timer);
-
-       devs = card;
-
-       pci_set_master(pci_dev);
-
-       printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n",
-              card_names[pci_id->driver_data], card->iobase, card->irq);
-
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               /* ALi channel Management */
-               card->alloc_pcm_channel = ali_alloc_pcm_channel;
-               card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
-               card->free_pcm_channel = ali_free_pcm_channel;
-
-               card->address_interrupt = ali_address_interrupt;
-
-               /* Added by Matt Wu 01-05-2001 for spdif in */
-               card->multi_channel_use_count = 0;
-               card->rec_channel_use_count = 0;
-
-               /* ALi SPDIF OUT function */
-               if (card->revision == ALI_5451_V02) {
-                       ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
-                       res = create_proc_entry("ALi5451", 0, NULL);
-                       if (res) {
-                               res->write_proc = ali_write_proc;
-                               res->data = card;
-                       }
-               }
-
-               /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
-               card->hwvolctl = 0;
-               pci_dev_m1533 = pci_get_device(PCI_VENDOR_ID_AL,
-                                              PCI_DEVICE_ID_AL_M1533,
-                                              pci_dev_m1533);
-               rc = -ENODEV;
-               if (pci_dev_m1533 == NULL)
-                       goto out_proc_fs;
-               pci_read_config_byte(pci_dev_m1533, 0x63, &bits);
-               if (bits & (1 << 5))
-                       card->hwvolctl = 1;
-               if (card->hwvolctl) {
-                       /* Clear m1533 pci cfg 78h bit 30 to zero, which makes
-                          GPIO11/12/13 work as ACGP_UP/DOWN/MUTE. */
-                       pci_read_config_byte(pci_dev_m1533, 0x7b, &bits);
-                       bits &= 0xbf;   /*clear bit 6 */
-                       pci_write_config_byte(pci_dev_m1533, 0x7b, bits);
-               }
-               pci_dev_put(pci_dev_m1533);
-
-       } else if (card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
-               card->alloc_pcm_channel = cyber_alloc_pcm_channel;
-               card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel;
-               card->free_pcm_channel = cyber_free_pcm_channel;
-               card->address_interrupt = cyber_address_interrupt;
-               cyber_init_ritual(card);
-       } else {
-               card->alloc_pcm_channel = trident_alloc_pcm_channel;
-               card->alloc_rec_pcm_channel = trident_alloc_pcm_channel;
-               card->free_pcm_channel = trident_free_pcm_channel;
-               card->address_interrupt = trident_address_interrupt;
-       }
-
-       /* claim our irq */
-       rc = -ENODEV;
-       if (request_irq(card->irq, &trident_interrupt, IRQF_SHARED,
-                       card_names[pci_id->driver_data], card)) {
-               printk(KERN_ERR "trident: unable to allocate irq %d\n",
-                      card->irq);
-               goto out_proc_fs;
-       }
-       /* register /dev/dsp */
-       if ((card->dev_audio = register_sound_dsp(&trident_audio_fops, -1)) < 0) {
-               printk(KERN_ERR "trident: couldn't register DSP device!\n");
-               goto out_free_irq;
-       }
-       card->mixer_regs_ready = 0;
-       /* initialize AC97 codec and register /dev/mixer */
-       if (trident_ac97_init(card) <= 0) {
-               /* unregister audio devices */
-               for (i = 0; i < NR_AC97; i++) {
-                       if (card->ac97_codec[i] != NULL) {
-                               struct ac97_codec* codec = card->ac97_codec[i];
-                               unregister_sound_mixer(codec->dev_mixer);
-                               ac97_release_codec(codec);
-                       }
-               }
-               goto out_unregister_sound_dsp;
-       }
-       card->mixer_regs_ready = 1;
-       outl(0x00, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
-
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
-               if (card->hwvolctl) {
-                       /* Enable GPIO IRQ (MISCINT bit 18h) */
-                       temp = inw(TRID_REG(card, T4D_MISCINT + 2));
-                       temp |= 0x0004;
-                       outw(temp, TRID_REG(card, T4D_MISCINT + 2));
-
-                       /* Enable H/W Volume Control GLOVAL CONTROL bit 0 */
-                       temp = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
-                       temp |= 0x0001;
-                       outw(temp, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
-               }
-               if (card->revision == ALI_5451_V02)
-                       ali_close_multi_channels();
-               /* edited by HMSEO for GT sound */
-#if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
-               {
-                       u16 ac97_data;
-                       extern struct hwrpb_struct *hwrpb;
-
-                       if ((hwrpb->sys_type) == 201) {
-                               printk(KERN_INFO "trident: Running on Alpha system "
-                                      "type Nautilus\n");
-                               ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
-                               ali_ac97_set(card, 0, AC97_POWER_CONTROL,
-                                            ac97_data | ALI_EAPD_POWER_DOWN);
-                       }
-               }
-#endif                         /* CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC */
-               /* edited by HMSEO for GT sound */
-       }
-       rc = 0;
-       pci_set_drvdata(pci_dev, card);
-
-       /* Enable Address Engine Interrupts */
-       trident_enable_loop_interrupts(card);
-
-       /* Register gameport */
-       trident_register_gameport(card);
-
-out:
-       return rc;
-
-out_unregister_sound_dsp:
-       unregister_sound_dsp(card->dev_audio);
-out_free_irq:
-       free_irq(card->irq, card);
-out_proc_fs:
-       pci_dev_put(card->pci_dev);
-       if (res) {
-               remove_proc_entry("ALi5451", NULL);
-               res = NULL;
-       }
-       kfree(card);
-       devs = NULL;
-out_release_region:
-       release_region(iobase, 256);
-       return rc;
-}
-
-static void __devexit
-trident_remove(struct pci_dev *pci_dev)
-{
-       int i;
-       struct trident_card *card = pci_get_drvdata(pci_dev);
-
-       /*
-        *      Kill running timers before unload. We can't have them
-        *      going off after rmmod!
-        */
-       if (card->hwvolctl)
-               del_timer_sync(&card->timer);
-
-       /* ALi S/PDIF and Power Management */
-       if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
-               ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
-               ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
-               ali_disable_spdif_in(card);
-               remove_proc_entry("ALi5451", NULL);
-       }
-
-       /* Unregister gameport */
-       trident_unregister_gameport(card);
-
-       /* Kill interrupts, and SP/DIF */
-       trident_disable_loop_interrupts(card);
-
-       /* free hardware resources */
-       free_irq(card->irq, card);
-       release_region(card->iobase, 256);
-
-       /* unregister audio devices */
-       for (i = 0; i < NR_AC97; i++)
-               if (card->ac97_codec[i] != NULL) {
-                       unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
-                       ac97_release_codec(card->ac97_codec[i]);
-               }
-       unregister_sound_dsp(card->dev_audio);
-
-       pci_set_drvdata(pci_dev, NULL);
-       pci_dev_put(card->pci_dev);
-       kfree(card);
-}
-
-MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee, Muli Ben-Yehuda");
-MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI "
-                  "Audio Driver");
-MODULE_LICENSE("GPL");
-
-#define TRIDENT_MODULE_NAME "trident"
-
-static struct pci_driver trident_pci_driver = {
-       .name = TRIDENT_MODULE_NAME,
-       .id_table = trident_pci_tbl,
-       .probe = trident_probe,
-       .remove = __devexit_p(trident_remove),
-#ifdef CONFIG_PM
-       .suspend = trident_suspend,
-       .resume = trident_resume
-#endif
-};
-
-static int __init
-trident_init_module(void)
-{
-       printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro "
-              "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " "
-              __DATE__ "\n");
-
-       return pci_register_driver(&trident_pci_driver);
-}
-
-static void __exit
-trident_cleanup_module(void)
-{
-       pci_unregister_driver(&trident_pci_driver);
-}
-
-module_init(trident_init_module);
-module_exit(trident_cleanup_module);
diff --git a/sound/oss/trident.h b/sound/oss/trident.h
deleted file mode 100644 (file)
index ff30a1d..0000000
+++ /dev/null
@@ -1,358 +0,0 @@
-#ifndef __TRID4DWAVE_H
-#define __TRID4DWAVE_H
-
-/*
- *  audio@tridentmicro.com
- *  Fri Feb 19 15:55:28 MST 1999
- *  Definitions for Trident 4DWave DX/NX chips
- *
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-/* PCI vendor and device ID */ 
-#ifndef PCI_VENDOR_ID_TRIDENT
-#define PCI_VENDOR_ID_TRIDENT          0x1023
-#endif
-
-#ifndef PCI_VENDOR_ID_SI
-#define PCI_VENDOR_ID_SI                       0x1039
-#endif
-
-#ifndef PCI_VENDOR_ID_ALI
-#define PCI_VENDOR_ID_ALI                      0x10b9
-#endif
-
-#ifndef PCI_DEVICE_ID_TRIDENT_4DWAVE_DX
-#define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX        0x2000
-#endif
-
-#ifndef PCI_DEVICE_ID_TRIDENT_4DWAVE_NX
-#define PCI_DEVICE_ID_TRIDENT_4DWAVE_NX        0x2001
-#endif
-
-#ifndef PCI_DEVICE_ID_SI_7018
-#define PCI_DEVICE_ID_SI_7018          0x7018
-#endif
-
-#ifndef PCI_DEVICE_ID_ALI_5451
-#define PCI_DEVICE_ID_ALI_5451         0x5451
-#endif
-
-#ifndef PCI_DEVICE_ID_ALI_1533
-#define PCI_DEVICE_ID_ALI_1533         0x1533
-#endif
-
-#define CHANNEL_REGS   5
-#define CHANNEL_START  0xe0   // The first bytes of the contiguous register space.
-
-#define BANK_A                 0
-#define BANK_B                 1
-#define NR_BANKS               2
-
-#define TRIDENT_FMT_STEREO     0x01
-#define TRIDENT_FMT_16BIT      0x02
-#define TRIDENT_FMT_MASK       0x03
-
-#define DAC_RUNNING    0x01
-#define ADC_RUNNING    0x02
-
-/* Register Addresses */
-
-/* operational registers common to DX, NX, 7018 */
-enum trident_op_registers {
-       T4D_GAME_CR     = 0x30, T4D_GAME_LEG    = 0x31,
-       T4D_GAME_AXD    = 0x34,
-       T4D_REC_CH      = 0x70,
-       T4D_START_A     = 0x80, T4D_STOP_A      = 0x84,
-       T4D_DLY_A       = 0x88, T4D_SIGN_CSO_A  = 0x8c,
-       T4D_CSPF_A      = 0x90, T4D_CEBC_A      = 0x94,
-       T4D_AINT_A      = 0x98, T4D_EINT_A      = 0x9c,
-       T4D_LFO_GC_CIR  = 0xa0, T4D_AINTEN_A    = 0xa4,
-       T4D_MUSICVOL_WAVEVOL = 0xa8, T4D_SBDELTA_DELTA_R = 0xac,
-       T4D_MISCINT     = 0xb0, T4D_START_B     = 0xb4,
-       T4D_STOP_B      = 0xb8, T4D_CSPF_B      = 0xbc,
-       T4D_SBBL_SBCL   = 0xc0, T4D_SBCTRL_SBE2R_SBDD    = 0xc4,
-       T4D_STIMER      = 0xc8, T4D_LFO_B_I2S_DELTA      = 0xcc,
-       T4D_AINT_B      = 0xd8, T4D_AINTEN_B    = 0xdc,
-       ALI_MPUR2       = 0x22, ALI_GPIO        = 0x7c,
-       ALI_EBUF1 = 0xf4,
-       ALI_EBUF2 = 0xf8
-};
-
-enum ali_op_registers {
-       ALI_SCTRL               = 0x48,
-       ALI_GLOBAL_CONTROL      = 0xd4,
-       ALI_STIMER              = 0xc8,
-       ALI_SPDIF_CS            = 0x70,
-       ALI_SPDIF_CTRL          = 0x74
-};
-
-enum ali_registers_number {
-       ALI_GLOBAL_REGS         = 56,
-       ALI_CHANNEL_REGS        = 8,
-       ALI_MIXER_REGS          = 20
-};
-
-enum ali_sctrl_control_bit {
-       ALI_SPDIF_OUT_ENABLE    = 0x20
-};
-
-enum ali_global_control_bit {
-       ALI_SPDIF_OUT_SEL_PCM   = 0x00000400,
-       ALI_SPDIF_IN_SUPPORT    = 0x00000800,
-       ALI_SPDIF_OUT_CH_ENABLE = 0x00008000,
-       ALI_SPDIF_IN_CH_ENABLE  = 0x00080000,
-       ALI_PCM_IN_DISABLE      = 0x7fffffff,
-       ALI_PCM_IN_ENABLE       = 0x80000000,
-       ALI_SPDIF_IN_CH_DISABLE = 0xfff7ffff,
-       ALI_SPDIF_OUT_CH_DISABLE = 0xffff7fff,
-       ALI_SPDIF_OUT_SEL_SPDIF = 0xfffffbff
-       
-};
-
-enum ali_spdif_control_bit {
-       ALI_SPDIF_IN_FUNC_ENABLE        = 0x02,
-       ALI_SPDIF_IN_CH_STATUS          = 0x40,
-       ALI_SPDIF_OUT_CH_STATUS         = 0xbf
-       
-};
-
-enum ali_control_all {
-       ALI_DISABLE_ALL_IRQ     = 0,
-       ALI_CHANNELS            = 32,
-       ALI_STOP_ALL_CHANNELS   = 0xffffffff,
-       ALI_MULTI_CHANNELS_START_STOP   = 0x07800000
-};
-
-enum ali_EMOD_control_bit {
-       ALI_EMOD_DEC    = 0x00000000,
-       ALI_EMOD_INC    = 0x10000000,
-       ALI_EMOD_Delay  = 0x20000000,
-       ALI_EMOD_Still  = 0x30000000
-};
-
-enum ali_pcm_in_channel_num {
-       ALI_NORMAL_CHANNEL      = 0,
-       ALI_SPDIF_OUT_CHANNEL   = 15,
-       ALI_SPDIF_IN_CHANNEL    = 19,
-       ALI_LEF_CHANNEL         = 23,
-       ALI_CENTER_CHANNEL      = 24,
-       ALI_SURR_RIGHT_CHANNEL  = 25,
-       ALI_SURR_LEFT_CHANNEL   = 26,
-       ALI_PCM_IN_CHANNEL      = 31
-};
-
-enum ali_pcm_out_channel_num {
-       ALI_PCM_OUT_CHANNEL_FIRST = 0,
-       ALI_PCM_OUT_CHANNEL_LAST = 31
-};
-
-enum ali_ac97_power_control_bit {
-       ALI_EAPD_POWER_DOWN     = 0x8000
-};
-
-enum ali_update_ptr_flags {
-       ALI_ADDRESS_INT_UPDATE  = 0x01
-};
-
-enum ali_revision {
-       ALI_5451_V02    = 0x02
-};
-
-enum ali_spdif_out_control {
-       ALI_PCM_TO_SPDIF_OUT            = 0,
-       ALI_SPDIF_OUT_TO_SPDIF_OUT      = 1,
-       ALI_SPDIF_OUT_PCM               = 0,
-       ALI_SPDIF_OUT_NON_PCM           = 2
-};
-
-/* S/PDIF Operational Registers for 4D-NX */
-enum nx_spdif_registers {
-       NX_SPCTRL_SPCSO = 0x24, NX_SPLBA = 0x28,
-       NX_SPESO        = 0x2c, NX_SPCSTATUS = 0x64
-};
-
-/* OP registers to access each hardware channel */
-enum channel_registers {
-       CH_DX_CSO_ALPHA_FMS = 0xe0, CH_DX_ESO_DELTA = 0xe8,
-       CH_DX_FMC_RVOL_CVOL = 0xec,
-       CH_NX_DELTA_CSO     = 0xe0, CH_NX_DELTA_ESO = 0xe8,
-       CH_NX_ALPHA_FMS_FMC_RVOL_CVOL = 0xec,
-       CH_LBA              = 0xe4,
-       CH_GVSEL_PAN_VOL_CTRL_EC      = 0xf0
-};
-
-/* registers to read/write/control AC97 codec */
-enum dx_ac97_registers {
-       DX_ACR0_AC97_W        = 0x40, DX_ACR1_AC97_R = 0x44,
-       DX_ACR2_AC97_COM_STAT = 0x48
-};
-
-enum nx_ac97_registers {
-       NX_ACR0_AC97_COM_STAT  = 0x40, NX_ACR1_AC97_W           = 0x44,
-       NX_ACR2_AC97_R_PRIMARY = 0x48, NX_ACR3_AC97_R_SECONDARY = 0x4c
-};
-
-enum si_ac97_registers {
-       SI_AC97_WRITE       = 0x40, SI_AC97_READ = 0x44,
-       SI_SERIAL_INTF_CTRL = 0x48, SI_AC97_GPIO = 0x4c
-};
-
-enum ali_ac97_registers {
-       ALI_AC97_WRITE       = 0x40, ALI_AC97_READ = 0x44
-};
-
-/* Bit mask for operational registers */
-#define AC97_REG_ADDR      0x000000ff
-
-enum ali_ac97_bits {
-       ALI_AC97_BUSY_WRITE = 0x8000, ALI_AC97_BUSY_READ = 0x8000,
-       ALI_AC97_WRITE_ACTION = 0x8000, ALI_AC97_READ_ACTION = 0x8000,
-       ALI_AC97_AUDIO_BUSY = 0x4000, ALI_AC97_SECONDARY  = 0x0080,
-       ALI_AC97_READ_MIXER_REGISTER = 0xfeff,
-       ALI_AC97_WRITE_MIXER_REGISTER = 0x0100
-};
-
-enum sis7018_ac97_bits {
-       SI_AC97_BUSY_WRITE = 0x8000, SI_AC97_BUSY_READ = 0x8000,
-       SI_AC97_AUDIO_BUSY = 0x4000, SI_AC97_MODEM_BUSY = 0x2000,
-       SI_AC97_SECONDARY  = 0x0080
-};
-
-enum trident_dx_ac97_bits {
-       DX_AC97_BUSY_WRITE = 0x8000, DX_AC97_BUSY_READ = 0x8000,
-       DX_AC97_READY      = 0x0010, DX_AC97_RECORD    = 0x0008,
-       DX_AC97_PLAYBACK   = 0x0002
-};
-
-enum trident_nx_ac97_bits {
-       /* ACR1-3 */
-       NX_AC97_BUSY_WRITE = 0x0800, NX_AC97_BUSY_READ = 0x0800,
-       NX_AC97_BUSY_DATA  = 0x0400, NX_AC97_WRITE_SECONDARY = 0x0100,
-       /* ACR0 */
-       NX_AC97_SECONDARY_READY = 0x0040, NX_AC97_SECONDARY_RECORD = 0x0020,
-       NX_AC97_SURROUND_OUTPUT = 0x0010,
-       NX_AC97_PRIMARY_READY   = 0x0008, NX_AC97_PRIMARY_RECORD   = 0x0004,
-       NX_AC97_PCM_OUTPUT      = 0x0002,
-       NX_AC97_WARM_RESET      = 0x0001
-};
-
-enum serial_intf_ctrl_bits {
-       WARM_REST   = 0x00000001, COLD_RESET  = 0x00000002,
-       I2S_CLOCK   = 0x00000004, PCM_SEC_AC97= 0x00000008,
-       AC97_DBL_RATE = 0x00000010, SPDIF_EN  = 0x00000020,
-       I2S_OUTPUT_EN = 0x00000040, I2S_INPUT_EN = 0x00000080,
-       PCMIN       = 0x00000100, LINE1IN     = 0x00000200,
-       MICIN       = 0x00000400, LINE2IN     = 0x00000800,
-       HEAD_SET_IN = 0x00001000, GPIOIN      = 0x00002000,
-       /* 7018 spec says id = 01 but the demo board routed to 10 
-          SECONDARY_ID= 0x00004000, */
-       SECONDARY_ID= 0x00004000,
-       PCMOUT      = 0x00010000, SURROUT     = 0x00020000,
-       CENTEROUT   = 0x00040000, LFEOUT      = 0x00080000,
-       LINE1OUT    = 0x00100000, LINE2OUT    = 0x00200000,
-       GPIOOUT     = 0x00400000,
-       SI_AC97_PRIMARY_READY   = 0x01000000,
-       SI_AC97_SECONDARY_READY = 0x02000000,
-};
-
-enum global_control_bits {
-       CHANNLE_IDX = 0x0000003f, PB_RESET    = 0x00000100,
-       PAUSE_ENG   = 0x00000200,
-       OVERRUN_IE  = 0x00000400, UNDERRUN_IE = 0x00000800,
-       ENDLP_IE    = 0x00001000, MIDLP_IE    = 0x00002000,
-       ETOG_IE     = 0x00004000,
-       EDROP_IE    = 0x00008000, BANK_B_EN   = 0x00010000
-};
-
-enum channel_control_bits {
-       CHANNEL_LOOP   = 0x00001000, CHANNEL_SIGNED = 0x00002000,
-       CHANNEL_STEREO = 0x00004000, CHANNEL_16BITS = 0x00008000,
-};
-
-enum channel_attribute {
-       /* playback/record select */
-       CHANNEL_PB     = 0x0000, CHANNEL_SPC_PB = 0x4000,
-       CHANNEL_REC    = 0x8000, CHANNEL_REC_PB = 0xc000,
-       /* playback destination/record source select */
-       MODEM_LINE1    = 0x0000, MODEM_LINE2    = 0x0400,
-       PCM_LR         = 0x0800, HSET           = 0x0c00,
-       I2S_LR         = 0x1000, CENTER_LFE     = 0x1400,
-       SURR_LR        = 0x1800, SPDIF_LR       = 0x1c00,
-       MIC            = 0x1400,
-       /* mist stuff */
-       MONO_LEFT      = 0x0000, MONO_RIGHT     = 0x0100,
-       MONO_MIX       = 0x0200, SRC_ENABLE     = 0x0080,
-};
-
-enum miscint_bits {
-       PB_UNDERRUN_IRO = 0x00000001, REC_OVERRUN_IRQ = 0x00000002,
-       SB_IRQ          = 0x00000004, MPU401_IRQ      = 0x00000008,
-       OPL3_IRQ        = 0x00000010, ADDRESS_IRQ     = 0x00000020,
-       ENVELOPE_IRQ    = 0x00000040, ST_IRQ          = 0x00000080,
-       PB_UNDERRUN     = 0x00000100, REC_OVERRUN     = 0x00000200,
-       MIXER_UNDERFLOW = 0x00000400, MIXER_OVERFLOW  = 0x00000800,
-       ST_TARGET_REACHED = 0x00008000, PB_24K_MODE   = 0x00010000, 
-       ST_IRQ_EN       = 0x00800000, ACGPIO_IRQ      = 0x01000000
-};
-
-#define TRID_REG( trident, x ) ( (trident) -> iobase + (x) )
-
-#define                CYBER_PORT_AUDIO                0x3CE
-#define                CYBER_IDX_AUDIO_ENABLE          0x7B
-#define                CYBER_BMSK_AUDIO_INT_ENABLE     0x09
-#define                CYBER_BMSK_AUENZ                0x01
-#define                CYBER_BMSK_AUENZ_ENABLE         0x00
-#define                CYBER_IDX_IRQ_ENABLE            0x12
-      
-#define VALIDATE_MAGIC(FOO,MAG)                                \
-({                                                     \
-       if (!(FOO) || (FOO)->magic != MAG) {            \
-               printk(invalid_magic,__func__); \
-               return -ENXIO;                          \
-       }                                               \
-})
-
-#define VALIDATE_STATE(a) VALIDATE_MAGIC(a,TRIDENT_STATE_MAGIC)
-#define VALIDATE_CARD(a) VALIDATE_MAGIC(a,TRIDENT_CARD_MAGIC)
-
-static inline unsigned ld2(unsigned int x)
-{
-       unsigned r = 0;
-       
-       if (x >= 0x10000) {
-               x >>= 16;
-               r += 16;
-       }
-       if (x >= 0x100) {
-               x >>= 8;
-               r += 8;
-       }
-       if (x >= 0x10) {
-               x >>= 4;
-               r += 4;
-       }
-       if (x >= 4) {
-               x >>= 2;
-               r += 2;
-       }
-       if (x >= 2)
-               r++;
-       return r;
-}
-
-#endif /* __TRID4DWAVE_H */