include/sound/pxa2xx-lib.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef PXA2XX_LIB_H
0003 #define PXA2XX_LIB_H
0004
0005 #include <uapi/sound/asound.h>
0006 #include <linux/platform_device.h>
0007
0008 /* PCM */
0009 struct snd_pcm_substream;
0010 struct snd_pcm_hw_params;
0011 struct snd_soc_pcm_runtime;
0012 struct snd_pcm;
0013 struct snd_soc_component;
0014
0015 extern int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
0016                 struct snd_pcm_hw_params *params);
0017 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
0018 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
0019 extern int pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
0020 extern int pxa2xx_pcm_open(struct snd_pcm_substream *substream);
0021 extern int pxa2xx_pcm_close(struct snd_pcm_substream *substream);
0022 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm);
0023 extern int pxa2xx_soc_pcm_new(struct snd_soc_component *component,
0024                   struct snd_soc_pcm_runtime *rtd);
0025 extern int pxa2xx_soc_pcm_open(struct snd_soc_component *component,
0026                    struct snd_pcm_substream *substream);
0027 extern int pxa2xx_soc_pcm_close(struct snd_soc_component *component,
0028                 struct snd_pcm_substream *substream);
0029 extern int pxa2xx_soc_pcm_hw_params(struct snd_soc_component *component,
0030                     struct snd_pcm_substream *substream,
0031                     struct snd_pcm_hw_params *params);
0032 extern int pxa2xx_soc_pcm_prepare(struct snd_soc_component *component,
0033                   struct snd_pcm_substream *substream);
0034 extern int pxa2xx_soc_pcm_trigger(struct snd_soc_component *component,
0035                   struct snd_pcm_substream *substream, int cmd);
0036 extern snd_pcm_uframes_t
0037 pxa2xx_soc_pcm_pointer(struct snd_soc_component *component,
0038                struct snd_pcm_substream *substream);
0039
0040 /* AC97 */
0041
0042 extern int pxa2xx_ac97_read(int slot, unsigned short reg);
0043 extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
0044
0045 extern bool pxa2xx_ac97_try_warm_reset(void);
0046 extern bool pxa2xx_ac97_try_cold_reset(void);
0047 extern void pxa2xx_ac97_finish_reset(void);
0048
0049 extern int pxa2xx_ac97_hw_suspend(void);
0050 extern int pxa2xx_ac97_hw_resume(void);
0051
0052 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
0053 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
0054
0055 /* modem registers, used by touchscreen driver */
0056 u32 pxa2xx_ac97_read_modr(void);
0057 u32 pxa2xx_ac97_read_misr(void);
0058
0059 #endif