sound/pci/cs5535audio/cs5535audio.h

   1 #ifndef __SOUND_CS5535AUDIO_H
   2 #define __SOUND_CS5535AUDIO_H
   3
   4 #define cs_writel(cs5535au, reg, val)   outl(val, (cs5535au)->port + reg)
   5 #define cs_writeb(cs5535au, reg, val)   outb(val, (cs5535au)->port + reg)
   6 #define cs_readl(cs5535au, reg)         inl((cs5535au)->port + reg)
   7 #define cs_readw(cs5535au, reg)         inw((cs5535au)->port + reg)
   8 #define cs_readb(cs5535au, reg)         inb((cs5535au)->port + reg)
   9
  10 #define CS5535AUDIO_MAX_DESCRIPTORS     128
  11
  12 /* acc_codec bar0 reg addrs */
  13 #define ACC_GPIO_STATUS                 0x00
  14 #define ACC_CODEC_STATUS                0x08
  15 #define ACC_CODEC_CNTL                  0x0C
  16 #define ACC_IRQ_STATUS                  0x12
  17 #define ACC_BM0_CMD                     0x20
  18 #define ACC_BM1_CMD                     0x28
  19 #define ACC_BM0_PRD                     0x24
  20 #define ACC_BM1_PRD                     0x2C
  21 #define ACC_BM0_STATUS                  0x21
  22 #define ACC_BM1_STATUS                  0x29
  23 #define ACC_BM0_PNTR                    0x60
  24 #define ACC_BM1_PNTR                    0x64
  25
  26 /* acc_codec bar0 reg bits */
  27 /* ACC_IRQ_STATUS */
  28 #define IRQ_STS                         0
  29 #define WU_IRQ_STS                      1
  30 #define BM0_IRQ_STS                     2
  31 #define BM1_IRQ_STS                     3
  32 /* ACC_BMX_STATUS */
  33 #define EOP                             (1<<0)
  34 #define BM_EOP_ERR                      (1<<1)
  35 /* ACC_BMX_CTL */
  36 #define BM_CTL_EN                       0x01
  37 #define BM_CTL_PAUSE                    0x03
  38 #define BM_CTL_DIS                      0x00
  39 #define BM_CTL_BYTE_ORD_LE              0x00
  40 #define BM_CTL_BYTE_ORD_BE              0x04
  41 /* cs5535 specific ac97 codec register defines */
  42 #define CMD_MASK                        0xFF00FFFF
  43 #define CMD_NEW                         0x00010000
  44 #define STS_NEW                         0x00020000
  45 #define PRM_RDY_STS                     0x00800000
  46 #define ACC_CODEC_CNTL_WR_CMD           (~0x80000000)
  47 #define ACC_CODEC_CNTL_RD_CMD           0x80000000
  48 #define ACC_CODEC_CNTL_LNK_SHUTDOWN     0x00040000
  49 #define ACC_CODEC_CNTL_LNK_WRM_RST      0x00020000
  50 #define PRD_JMP                         0x2000
  51 #define PRD_EOP                         0x4000
  52 #define PRD_EOT                         0x8000
  53
  54 enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
  55
  56 struct cs5535audio;
  57
  58 struct cs5535audio_dma_ops {
  59         int type;
  60         void (*enable_dma)(struct cs5535audio *cs5535au);
  61         void (*disable_dma)(struct cs5535audio *cs5535au);
  62         void (*pause_dma)(struct cs5535audio *cs5535au);
  63         void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr);
  64         u32 (*read_prd)(struct cs5535audio *cs5535au);
  65         u32 (*read_dma_pntr)(struct cs5535audio *cs5535au);
  66 };
  67
  68 struct cs5535audio_dma_desc {
  69         u32 addr;
  70         u16 size;
  71         u16 ctlreserved;
  72 };
  73
  74 struct cs5535audio_dma {
  75         const struct cs5535audio_dma_ops *ops;
  76         struct snd_dma_buffer desc_buf;
  77         struct snd_pcm_substream *substream;
  78         unsigned int buf_addr, buf_bytes;
  79         unsigned int period_bytes, periods;
  80         u32 saved_prd;
  81         int pcm_open_flag;
  82 };
  83
  84 struct cs5535audio {
  85         struct snd_card *card;
  86         struct snd_ac97 *ac97;
  87         struct snd_pcm *pcm;
  88         int irq;
  89         struct pci_dev *pci;
  90         unsigned long port;
  91         spinlock_t reg_lock;
  92         struct snd_pcm_substream *playback_substream;
  93         struct snd_pcm_substream *capture_substream;
  94         struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
  95 };
  96
  97 extern const struct dev_pm_ops snd_cs5535audio_pm;
  98
  99 #ifdef CONFIG_OLPC
 100 void olpc_prequirks(struct snd_card *card,
 101                     struct snd_ac97_template *ac97);
 102 int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
 103 void olpc_quirks_cleanup(void);
 104 void olpc_analog_input(struct snd_ac97 *ac97, int on);
 105 void olpc_mic_bias(struct snd_ac97 *ac97, int on);
 106
 107 static inline void olpc_capture_open(struct snd_ac97 *ac97)
 108 {
 109         /* default to Analog Input off */
 110         olpc_analog_input(ac97, 0);
 111         /* enable MIC Bias for recording */
 112         olpc_mic_bias(ac97, 1);
 113 }
 114
 115 static inline void olpc_capture_close(struct snd_ac97 *ac97)
 116 {
 117         /* disable Analog Input */
 118         olpc_analog_input(ac97, 0);
 119         /* disable the MIC Bias (so the recording LED turns off) */
 120         olpc_mic_bias(ac97, 0);
 121 }
 122 #else
 123 static inline void olpc_prequirks(struct snd_card *card,
 124                 struct snd_ac97_template *ac97) { }
 125 static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 126 {
 127         return 0;
 128 }
 129 static inline void olpc_quirks_cleanup(void) { }
 130 static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { }
 131 static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { }
 132 static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
 133 static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
 134 #endif
 135
 136 int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
 137
 138 #endif /* __SOUND_CS5535AUDIO_H */
 139