LXR linux/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
  54enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
  55
  56struct cs5535audio;
  57
  58struct 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
  68struct cs5535audio_dma_desc {
  69        u32 addr;
  70        u16 size;
  71        u16 ctlreserved;
  72};
  73
  74struct 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
  84struct 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#ifdef CONFIG_PM
  98int snd_cs5535audio_suspend(struct pci_dev *pci, pm_message_t state);
  99int snd_cs5535audio_resume(struct pci_dev *pci);
 100#endif
 101
 102#if defined(CONFIG_OLPC) && defined(CONFIG_MGEODE_LX)
 103void __devinit olpc_prequirks(struct snd_card *card,
 104                struct snd_ac97_template *ac97);
 105int __devinit olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
 106void olpc_analog_input(struct snd_ac97 *ac97, int on);
 107void olpc_mic_bias(struct snd_ac97 *ac97, int on);
 108
 109static inline void olpc_capture_open(struct snd_ac97 *ac97)
 110{
 111        /* default to Analog Input off */
 112        olpc_analog_input(ac97, 0);
 113        /* enable MIC Bias for recording */
 114        olpc_mic_bias(ac97, 1);
 115}
 116
 117static inline void olpc_capture_close(struct snd_ac97 *ac97)
 118{
 119        /* disable Analog Input */
 120        olpc_analog_input(ac97, 0);
 121        /* disable the MIC Bias (so the recording LED turns off) */
 122        olpc_mic_bias(ac97, 0);
 123}
 124#else
 125static inline void olpc_prequirks(struct snd_card *card,
 126                struct snd_ac97_template *ac97) { }
 127static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 128{
 129        return 0;
 130}
 131static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { }
 132static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { }
 133static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
 134static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
 135#endif
 136
 137int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
 138
 139#endif /* __SOUND_CS5535AUDIO_H */
 140
 141