diff options
Diffstat (limited to 'sound/oss/nm256.h')
| -rw-r--r-- | sound/oss/nm256.h | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/sound/oss/nm256.h b/sound/oss/nm256.h deleted file mode 100644 index 1dade903399..00000000000 --- a/sound/oss/nm256.h +++ /dev/null @@ -1,292 +0,0 @@ -#ifndef _NM256_H_ -#define _NM256_H_ - -#include <linux/spinlock.h> -#include <linux/interrupt.h> - -#include "ac97.h" - -/* The revisions that we currently handle. */ -enum nm256rev { - REV_NM256AV, REV_NM256ZX -}; - -/* Per-card structure. */ -struct nm256_info -{ - /* Magic number used to verify that this struct is valid. */ -#define NM_MAGIC_SIG 0x55aa00ff - int magsig; - - /* Revision number */ - enum nm256rev rev; - - struct ac97_hwint mdev; - - /* Our audio device numbers. */ - int dev[2]; - - /* The # of times each device has been opened. (Should only be - 0 or 1). */ - int opencnt[2]; - - /* We use two devices, because we can do simultaneous play and record. - This keeps track of which device is being used for what purpose; - these are the actual device numbers. */ - int dev_for_play; - int dev_for_record; - - spinlock_t lock; - - /* The mixer device. */ - int mixer_oss_dev; - - /* - * Can only be opened once for each operation. These aren't set - * until an actual I/O operation is performed; this allows one - * device to be open for read/write without inhibiting I/O to - * the other device. - */ - int is_open_play; - int is_open_record; - - /* Non-zero if we're currently playing a sample. */ - int playing; - /* Ditto for recording a sample. */ - int recording; - - /* The two memory ports. */ - struct nm256_ports { - /* Physical address of the port. */ - u32 physaddr; - /* Our mapped-in pointer. */ - char __iomem *ptr; - /* PTR's offset within the physical port. */ - u32 start_offset; - /* And the offset of the end of the buffer. */ - u32 end_offset; - } port[2]; - - /* The following are offsets within memory port 1. */ - u32 coeffBuf; - u32 allCoeffBuf; - - /* Record and playback buffers. */ - u32 abuf1, abuf2; - - /* Offset of the AC97 mixer in memory port 2. */ - u32 mixer; - - /* Offset of the mixer status register in memory port 2. */ - u32 mixer_status_offset; - - /* Non-zero if we have written initial values to the mixer. */ - u8 mixer_values_init; - - /* - * Status mask bit; (*mixer_status_loc & mixer_status_mask) == 0 means - * it's ready. - */ - u16 mixer_status_mask; - - /* The sizes of the playback and record ring buffers. */ - u32 playbackBufferSize; - u32 recordBufferSize; - - /* Are the coefficient values in the memory cache current? */ - u8 coeffsCurrent; - - /* For writes, the amount we last wrote. */ - u32 requested_amt; - /* The start of the block currently playing. */ - u32 curPlayPos; - - /* The amount of data we were requested to record. */ - u32 requestedRecAmt; - /* The offset of the currently-recording block. */ - u32 curRecPos; - /* The destination buffer. */ - char *recBuf; - - /* Our IRQ number. */ - int irq; - - /* A flag indicating how many times we've grabbed the IRQ. */ - int has_irq; - - /* The card interrupt service routine. */ - irq_handler_t introutine; - - /* Current audio config, cached. */ - struct sinfo { - u32 samplerate; - u8 bits; - u8 stereo; - } sinfo[2]; /* goes with each device */ - - /* The cards are stored in a chain; this is the next card. */ - struct nm256_info *next_card; -}; - -/* The BIOS signature. */ -#define NM_SIGNATURE 0x4e4d0000 -/* Signature mask. */ -#define NM_SIG_MASK 0xffff0000 - -/* Size of the second memory area. */ -#define NM_PORT2_SIZE 4096 - -/* The base offset of the mixer in the second memory area. */ -#define NM_MIXER_OFFSET 0x600 - -/* The maximum size of a coefficient entry. */ -#define NM_MAX_COEFFICIENT 0x5000 - -/* The interrupt register. */ -#define NM_INT_REG 0xa04 -/* And its bits. */ -#define NM_PLAYBACK_INT 0x40 -#define NM_RECORD_INT 0x100 -#define NM_MISC_INT_1 0x4000 -#define NM_MISC_INT_2 0x1 -#define NM_ACK_INT(CARD, X) nm256_writePort16((CARD), 2, NM_INT_REG, (X) << 1) - -/* The AV's "mixer ready" status bit and location. */ -#define NM_MIXER_STATUS_OFFSET 0xa04 -#define NM_MIXER_READY_MASK 0x0800 -#define NM_MIXER_PRESENCE 0xa06 -#define NM_PRESENCE_MASK 0x0050 -#define NM_PRESENCE_VALUE 0x0040 - -/* - * For the ZX. It uses the same interrupt register, but it holds 32 - * bits instead of 16. - */ -#define NM2_PLAYBACK_INT 0x10000 -#define NM2_RECORD_INT 0x80000 -#define NM2_MISC_INT_1 0x8 -#define NM2_MISC_INT_2 0x2 -#define NM2_ACK_INT(CARD, X) nm256_writePort32((CARD), 2, NM_INT_REG, (X)) - -/* The ZX's "mixer ready" status bit and location. */ -#define NM2_MIXER_STATUS_OFFSET 0xa06 -#define NM2_MIXER_READY_MASK 0x0800 - -/* The playback registers start from here. */ -#define NM_PLAYBACK_REG_OFFSET 0x0 -/* The record registers start from here. */ -#define NM_RECORD_REG_OFFSET 0x200 - -/* The rate register is located 2 bytes from the start of the register area. */ -#define NM_RATE_REG_OFFSET 2 - -/* Mono/stereo flag, number of bits on playback, and rate mask. */ -#define NM_RATE_STEREO 1 -#define NM_RATE_BITS_16 2 -#define NM_RATE_MASK 0xf0 - -/* Playback enable register. */ -#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1) -#define NM_PLAYBACK_ENABLE_FLAG 1 -#define NM_PLAYBACK_ONESHOT 2 -#define NM_PLAYBACK_FREERUN 4 - -/* Mutes the audio output. */ -#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18) -#define NM_AUDIO_MUTE_LEFT 0x8000 -#define NM_AUDIO_MUTE_RIGHT 0x0080 - -/* Recording enable register. */ -#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0) -#define NM_RECORD_ENABLE_FLAG 1 -#define NM_RECORD_FREERUN 2 - -#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4) -#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10) -#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc) -#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8) - -#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4) -#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14) -#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc) -#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8) - -/* A few trivial routines to make it easier to work with the registers - on the chip. */ - -/* This is a common code portion used to fix up the port offsets. */ -#define NM_FIX_PORT \ - if (port < 1 || port > 2 || card == NULL) \ - return -1; \ -\ - if (offset < card->port[port - 1].start_offset \ - || offset >= card->port[port - 1].end_offset) { \ - printk (KERN_ERR "Bad access: port %d, offset 0x%x\n", port, offset); \ - return -1; \ - } \ - offset -= card->port[port - 1].start_offset; - -#define DEFwritePortX(X, func) \ -static inline int nm256_writePort##X (struct nm256_info *card,\ - int port, int offset, int value)\ -{\ - u##X __iomem *addr;\ -\ - if (nm256_debug > 1)\ - printk (KERN_DEBUG "Writing 0x%x to %d:0x%x\n", value, port, offset);\ -\ - NM_FIX_PORT;\ -\ - addr = (u##X __iomem *)(card->port[port - 1].ptr + offset);\ - func (value, addr);\ - return 0;\ -} - -DEFwritePortX (8, writeb) -DEFwritePortX (16, writew) -DEFwritePortX (32, writel) - -#define DEFreadPortX(X, func) \ -static inline u##X nm256_readPort##X (struct nm256_info *card,\ - int port, int offset)\ -{\ - u##X __iomem *addr;\ -\ - NM_FIX_PORT\ -\ - addr = (u##X __iomem *)(card->port[port - 1].ptr + offset);\ - return func(addr);\ -} - -DEFreadPortX (8, readb) -DEFreadPortX (16, readw) -DEFreadPortX (32, readl) - -static inline int -nm256_writeBuffer8 (struct nm256_info *card, u8 *src, int port, int offset, - int amt) -{ - NM_FIX_PORT; - memcpy_toio (card->port[port - 1].ptr + offset, src, amt); - return 0; -} - -static inline int -nm256_readBuffer8 (struct nm256_info *card, u8 *dst, int port, int offset, - int amt) -{ - NM_FIX_PORT; - memcpy_fromio (dst, card->port[port - 1].ptr + offset, amt); - return 0; -} - -/* Returns a non-zero value if we should use the coefficient cache. */ -static int nm256_cachedCoefficients (struct nm256_info *card); - -#endif - -/* - * Local variables: - * c-basic-offset: 4 - * End: - */ |