cs5535audio.h
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#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 */