diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-02 13:34:00 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-02 13:34:00 -0700 |
commit | 1810b6cb162e0c19e0ecbbacbcfd66f578f335ec (patch) | |
tree | 810494ca945483bf669a062d445d49d3bfb7d6a7 /include/asm-arm/arch-omap/omap-alsa.h | |
parent | ef7a4567dc542d8cc563755478464ea928fede41 (diff) | |
parent | 9b6553cd01ce3ea7a6a532f7b7e62e3535d6b102 (diff) |
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (27 commits)
[ARM] 3433/1: ARM: OMAP: 8/8 Update board files
[ARM] 3455/1: ARM: OMAP: 7/8 Misc updates, take 2
[ARM] 3454/1: ARM: OMAP: 6/8 Update framebuffer low-level init code, take 2
[ARM] 3430/1: ARM: OMAP: 5/8 Update PM
[ARM] 3429/1: ARM: OMAP: 4/8 Update GPIO
[ARM] 3428/1: ARM: OMAP: 3/8 Update pin multiplexing
[ARM] 3427/1: ARM: OMAP: 2/8 Update timers
[ARM] 3426/1: ARM: OMAP: 1/8 Update clock framework
[ARM] 3396/2: AT91RM9200 Platform devices update
[ARM] 3395/2: AT91RM9200 Dataflash Card vs MMC selection
[ARM] 3393/2: AT91RM9200 LED support
[ARM] 3453/1: Poodle: Correctly set the memory size
[ARM] 3446/1: i.MX: MMC/SD SDHC controller registration for i.MX/MX1 MX1ADS board
[ARM] 3444/1: i.MX: Scatter-gather DMA emulation for i.MX/MX1
[ARM] 3451/1: ep93xx: use the m48t86 rtc driver on the ts72xx platform
[ARM] 3450/1: ep93xx: use the ep93xx rtc driver
[ARM] 3452/1: [S3C2410] RX3715 - add nand information
[ARM] 3449/1: [S3C2410] Anubis - fix NAND timings
[ARM] 3448/1: [S3C2410] Settle delay when _enabling_ USB PLL
[ARM] 3442/1: [S3C2410] SMDK: NAND device setup
...
Diffstat (limited to 'include/asm-arm/arch-omap/omap-alsa.h')
-rw-r--r-- | include/asm-arm/arch-omap/omap-alsa.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/omap-alsa.h b/include/asm-arm/arch-omap/omap-alsa.h new file mode 100644 index 00000000000..df4695474e3 --- /dev/null +++ b/include/asm-arm/arch-omap/omap-alsa.h @@ -0,0 +1,124 @@ +/* + * linux/include/asm-arm/arch-omap/omap-alsa.h + * + * Alsa Driver for AIC23 and TSC2101 codecs on OMAP platform boards. + * + * Copyright (C) 2006 Mika Laitio <lamikr@cc.jyu.fi> + * + * Copyright (C) 2005 Instituto Nokia de Tecnologia - INdT - Manaus Brazil + * Written by Daniel Petrini, David Cohen, Anderson Briglia + * {daniel.petrini, david.cohen, anderson.briglia}@indt.org.br + * + * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * 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 + * ------- + * + * 2005/07/25 INdT-10LE Kernel Team - Alsa driver for omap osk, + * original version based in sa1100 driver + * and omap oss driver. + */ + +#ifndef __OMAP_ALSA_H +#define __OMAP_ALSA_H + +#include <sound/driver.h> +#include <asm/arch/dma.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <asm/arch/mcbsp.h> +#include <linux/platform_device.h> + +#define DMA_BUF_SIZE (1024 * 8) + +/* + * Buffer management for alsa and dma + */ +struct audio_stream { + char *id; /* identification string */ + int stream_id; /* numeric identification */ + int dma_dev; /* dma number of that device */ + int *lch; /* Chain of channels this stream is linked to */ + char started; /* to store if the chain was started or not */ + int dma_q_head; /* DMA Channel Q Head */ + int dma_q_tail; /* DMA Channel Q Tail */ + char dma_q_count; /* DMA Channel Q Count */ + int active:1; /* we are using this stream for transfer now */ + int period; /* current transfer period */ + int periods; /* current count of periods registerd in the DMA engine */ + spinlock_t dma_lock; /* for locking in DMA operations */ + snd_pcm_substream_t *stream; /* the pcm stream */ + unsigned linked:1; /* dma channels linked */ + int offset; /* store start position of the last period in the alsa buffer */ + int (*hw_start)(void); /* interface to start HW interface, e.g. McBSP */ + int (*hw_stop)(void); /* interface to stop HW interface, e.g. McBSP */ +}; + +/* + * Alsa card structure for aic23 + */ +struct snd_card_omap_codec { + snd_card_t *card; + snd_pcm_t *pcm; + long samplerate; + struct audio_stream s[2]; /* playback & capture */ +}; + +/* Codec specific information and function pointers. + * Codec (omap-alsa-aic23.c and omap-alsa-tsc2101.c) + * are responsible for defining the function pointers. + */ +struct omap_alsa_codec_config { + char *name; + struct omap_mcbsp_reg_cfg *mcbsp_regs_alsa; + snd_pcm_hw_constraint_list_t *hw_constraints_rates; + snd_pcm_hardware_t *snd_omap_alsa_playback; + snd_pcm_hardware_t *snd_omap_alsa_capture; + void (*codec_configure_dev)(void); + void (*codec_set_samplerate)(long); + void (*codec_clock_setup)(void); + int (*codec_clock_on)(void); + int (*codec_clock_off)(void); + int (*get_default_samplerate)(void); +}; + +/*********** Mixer function prototypes *************************/ +int snd_omap_mixer(struct snd_card_omap_codec *); +void snd_omap_init_mixer(void); + +#ifdef CONFIG_PM +void snd_omap_suspend_mixer(void); +void snd_omap_resume_mixer(void); +#endif + +int snd_omap_alsa_post_probe(struct platform_device *pdev, struct omap_alsa_codec_config *config); +int snd_omap_alsa_remove(struct platform_device *pdev); +#ifdef CONFIG_PM +int snd_omap_alsa_suspend(struct platform_device *pdev, pm_message_t state); +int snd_omap_alsa_resume(struct platform_device *pdev); +#else +#define snd_omap_alsa_suspend NULL +#define snd_omap_alsa_resume NULL +#endif + +void callback_omap_alsa_sound_dma(void *); + +#endif |