1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef PXA2XX_LIB_H 3 #define PXA2XX_LIB_H 4 5 #include <uapi/sound/asound.h> 6 #include <linux/platform_device.h> 7 8 /* PCM */ 9 struct snd_pcm_substream; 10 struct snd_pcm_hw_params; 11 struct snd_soc_pcm_runtime; 12 struct snd_pcm; 13 struct snd_soc_component; 14 15 extern int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream, 16 struct snd_pcm_hw_params *params); 17 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd); 18 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream); 19 extern int pxa2xx_pcm_prepare(struct snd_pcm_substream *substream); 20 extern int pxa2xx_pcm_open(struct snd_pcm_substream *substream); 21 extern int pxa2xx_pcm_close(struct snd_pcm_substream *substream); 22 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm); 23 extern int pxa2xx_soc_pcm_new(struct snd_soc_component *component, 24 struct snd_soc_pcm_runtime *rtd); 25 extern int pxa2xx_soc_pcm_open(struct snd_soc_component *component, 26 struct snd_pcm_substream *substream); 27 extern int pxa2xx_soc_pcm_close(struct snd_soc_component *component, 28 struct snd_pcm_substream *substream); 29 extern int pxa2xx_soc_pcm_hw_params(struct snd_soc_component *component, 30 struct snd_pcm_substream *substream, 31 struct snd_pcm_hw_params *params); 32 extern int pxa2xx_soc_pcm_prepare(struct snd_soc_component *component, 33 struct snd_pcm_substream *substream); 34 extern int pxa2xx_soc_pcm_trigger(struct snd_soc_component *component, 35 struct snd_pcm_substream *substream, int cmd); 36 extern snd_pcm_uframes_t 37 pxa2xx_soc_pcm_pointer(struct snd_soc_component *component, 38 struct snd_pcm_substream *substream); 39 40 /* AC97 */ 41 42 extern int pxa2xx_ac97_read(int slot, unsigned short reg); 43 extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val); 44 45 extern bool pxa2xx_ac97_try_warm_reset(void); 46 extern bool pxa2xx_ac97_try_cold_reset(void); 47 extern void pxa2xx_ac97_finish_reset(void); 48 49 extern int pxa2xx_ac97_hw_suspend(void); 50 extern int pxa2xx_ac97_hw_resume(void); 51 52 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev); 53 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev); 54 55 /* modem registers, used by touchscreen driver */ 56 u32 pxa2xx_ac97_read_modr(void); 57 u32 pxa2xx_ac97_read_misr(void); 58 59 #endif 60