diff options
Diffstat (limited to 'kernel/sound/pci/cs5535audio/cs5535audio.h')
| -rw-r--r-- | kernel/sound/pci/cs5535audio/cs5535audio.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/kernel/sound/pci/cs5535audio/cs5535audio.h b/kernel/sound/pci/cs5535audio/cs5535audio.h new file mode 100644 index 000000000..0579daa62 --- /dev/null +++ b/kernel/sound/pci/cs5535audio/cs5535audio.h @@ -0,0 +1,139 @@ +#ifndef __SOUND_CS5535AUDIO_H +#define __SOUND_CS5535AUDIO_H + +#define cs_writel(cs5535au, reg, val) outl(val, (cs5535au)->port + reg) +#define cs_writeb(cs5535au, reg, val) outb(val, (cs5535au)->port + reg) +#define cs_readl(cs5535au, reg) inl((cs5535au)->port + reg) +#define cs_readw(cs5535au, reg) inw((cs5535au)->port + reg) +#define cs_readb(cs5535au, reg) inb((cs5535au)->port + reg) + +#define CS5535AUDIO_MAX_DESCRIPTORS 128 + +/* acc_codec bar0 reg addrs */ +#define ACC_GPIO_STATUS 0x00 +#define ACC_CODEC_STATUS 0x08 +#define ACC_CODEC_CNTL 0x0C +#define ACC_IRQ_STATUS 0x12 +#define ACC_BM0_CMD 0x20 +#define ACC_BM1_CMD 0x28 +#define ACC_BM0_PRD 0x24 +#define ACC_BM1_PRD 0x2C +#define ACC_BM0_STATUS 0x21 +#define ACC_BM1_STATUS 0x29 +#define ACC_BM0_PNTR 0x60 +#define ACC_BM1_PNTR 0x64 + +/* acc_codec bar0 reg bits */ +/* ACC_IRQ_STATUS */ +#define IRQ_STS 0 +#define WU_IRQ_STS 1 +#define BM0_IRQ_STS 2 +#define BM1_IRQ_STS 3 +/* ACC_BMX_STATUS */ +#define EOP (1<<0) +#define BM_EOP_ERR (1<<1) +/* ACC_BMX_CTL */ +#define BM_CTL_EN 0x01 +#define BM_CTL_PAUSE 0x03 +#define BM_CTL_DIS 0x00 +#define BM_CTL_BYTE_ORD_LE 0x00 +#define BM_CTL_BYTE_ORD_BE 0x04 +/* cs5535 specific ac97 codec register defines */ +#define CMD_MASK 0xFF00FFFF +#define CMD_NEW 0x00010000 +#define STS_NEW 0x00020000 +#define PRM_RDY_STS 0x00800000 +#define ACC_CODEC_CNTL_WR_CMD (~0x80000000) +#define ACC_CODEC_CNTL_RD_CMD 0x80000000 +#define ACC_CODEC_CNTL_LNK_SHUTDOWN 0x00040000 +#define ACC_CODEC_CNTL_LNK_WRM_RST 0x00020000 +#define PRD_JMP 0x2000 +#define PRD_EOP 0x4000 +#define PRD_EOT 0x8000 + +enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS }; + +struct cs5535audio; + +struct cs5535audio_dma_ops { + int type; + void (*enable_dma)(struct cs5535audio *cs5535au); + void (*disable_dma)(struct cs5535audio *cs5535au); + void (*pause_dma)(struct cs5535audio *cs5535au); + void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr); + u32 (*read_prd)(struct cs5535audio *cs5535au); + u32 (*read_dma_pntr)(struct cs5535audio *cs5535au); +}; + +struct cs5535audio_dma_desc { + u32 addr; + u16 size; + u16 ctlreserved; +}; + +struct cs5535audio_dma { + const struct cs5535audio_dma_ops *ops; + struct snd_dma_buffer desc_buf; + struct snd_pcm_substream *substream; + unsigned int buf_addr, buf_bytes; + unsigned int period_bytes, periods; + u32 saved_prd; + int pcm_open_flag; +}; + +struct cs5535audio { + struct snd_card *card; + struct snd_ac97 *ac97; + struct snd_pcm *pcm; + int irq; + struct pci_dev *pci; + unsigned long port; + spinlock_t reg_lock; + struct snd_pcm_substream *playback_substream; + struct snd_pcm_substream *capture_substream; + struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS]; +}; + +extern const struct dev_pm_ops snd_cs5535audio_pm; + +#ifdef CONFIG_OLPC +void olpc_prequirks(struct snd_card *card, + struct snd_ac97_template *ac97); +int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97); +void olpc_quirks_cleanup(void); +void olpc_analog_input(struct snd_ac97 *ac97, int on); +void olpc_mic_bias(struct snd_ac97 *ac97, int on); + +static inline void olpc_capture_open(struct snd_ac97 *ac97) +{ + /* default to Analog Input off */ + olpc_analog_input(ac97, 0); + /* enable MIC Bias for recording */ + olpc_mic_bias(ac97, 1); +} + +static inline void olpc_capture_close(struct snd_ac97 *ac97) +{ + /* disable Analog Input */ + olpc_analog_input(ac97, 0); + /* disable the MIC Bias (so the recording LED turns off) */ + olpc_mic_bias(ac97, 0); +} +#else +static inline void olpc_prequirks(struct snd_card *card, + struct snd_ac97_template *ac97) { } +static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97) +{ + return 0; +} +static inline void olpc_quirks_cleanup(void) { } +static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { } +static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { } +static inline void olpc_capture_open(struct snd_ac97 *ac97) { } +static inline void olpc_capture_close(struct snd_ac97 *ac97) { } +#endif + +int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio); + +#endif /* __SOUND_CS5535AUDIO_H */ + |