| Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 1 | #ifndef PXA2XX_LIB_H |
| 2 | #define PXA2XX_LIB_H |
| 3 | |
| 4 | #include <linux/platform_device.h> |
| 5 | #include <sound/ac97_codec.h> |
| 6 | |
| Dmitry Baryshkov | a6d7731 | 2008-09-10 05:01:20 +0400 | [diff] [blame] | 7 | /* PCM */ |
| 8 | |
| 9 | struct pxa2xx_pcm_dma_params { |
| 10 | char *name; /* stream identifier */ |
| 11 | u32 dcmd; /* DMA descriptor dcmd field */ |
| 12 | volatile u32 *drcmr; /* the DMA request channel to use */ |
| 13 | u32 dev_addr; /* device physical address for DMA */ |
| 14 | }; |
| 15 | |
| 16 | extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream, |
| 17 | struct snd_pcm_hw_params *params); |
| 18 | extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream); |
| 19 | extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd); |
| 20 | extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream); |
| 21 | extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream); |
| 22 | extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id); |
| 23 | extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream); |
| 24 | extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream); |
| 25 | extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream, |
| 26 | struct vm_area_struct *vma); |
| 27 | extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream); |
| 28 | extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm); |
| 29 | |
| 30 | /* AC97 */ |
| 31 | |
| Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 32 | extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg); |
| 33 | extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val); |
| 34 | |
| 35 | extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97); |
| 36 | extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97); |
| 37 | extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97); |
| 38 | |
| 39 | extern int pxa2xx_ac97_hw_suspend(void); |
| 40 | extern int pxa2xx_ac97_hw_resume(void); |
| 41 | |
| 42 | extern int pxa2xx_ac97_hw_probe(struct platform_device *dev); |
| 43 | extern void pxa2xx_ac97_hw_remove(struct platform_device *dev); |
| 44 | |
| Robert Jarzmik | 26ade89 | 2009-03-15 14:10:54 +0100 | [diff] [blame] | 45 | /* AC97 platform_data */ |
| 46 | /** |
| 47 | * struct pxa2xx_ac97_platform_data - pxa ac97 platform data |
| 48 | * @reset_gpio: AC97 reset gpio (normally gpio113 or gpio95) |
| 49 | * a -1 value means no gpio will be used for reset |
| 50 | * |
| 51 | * Platform data should only be specified for pxa27x CPUs where a silicon bug |
| 52 | * prevents correct operation of the reset line. If not specified, the default |
| 53 | * behaviour is to consider gpio 113 as the AC97 reset line, which is the |
| 54 | * default on most boards. |
| 55 | */ |
| 56 | struct pxa2xx_ac97_platform_data { |
| 57 | int reset_gpio; |
| 58 | }; |
| 59 | |
| Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 60 | #endif |