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cs5535audio.h

#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;
};

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];
};

int snd_cs5535audio_suspend(struct pci_dev *pci, pm_message_t state);
int snd_cs5535audio_resume(struct pci_dev *pci);
int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);

#endif /* __SOUND_CS5535AUDIO_H */


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