root/sound/pci/cs5535audio/cs5535audio.h

INCLUDED FROM

DEFINITIONS

1. olpc_capture_open
2. olpc_capture_close
3. olpc_prequirks
4. olpc_quirks
5. olpc_quirks_cleanup
6. olpc_analog_input
7. olpc_mic_bias
8. olpc_capture_open
9. olpc_capture_close

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __SOUND_CS5535AUDIO_H
   3 #define __SOUND_CS5535AUDIO_H
   4 
   5 #define cs_writel(cs5535au, reg, val)   outl(val, (cs5535au)->port + reg)
   6 #define cs_writeb(cs5535au, reg, val)   outb(val, (cs5535au)->port + reg)
   7 #define cs_readl(cs5535au, reg)         inl((cs5535au)->port + reg)
   8 #define cs_readw(cs5535au, reg)         inw((cs5535au)->port + reg)
   9 #define cs_readb(cs5535au, reg)         inb((cs5535au)->port + reg)
  10 
  11 #define CS5535AUDIO_MAX_DESCRIPTORS     128
  12 
  13 /* acc_codec bar0 reg addrs */
  14 #define ACC_GPIO_STATUS                 0x00
  15 #define ACC_CODEC_STATUS                0x08
  16 #define ACC_CODEC_CNTL                  0x0C
  17 #define ACC_IRQ_STATUS                  0x12
  18 #define ACC_BM0_CMD                     0x20
  19 #define ACC_BM1_CMD                     0x28
  20 #define ACC_BM0_PRD                     0x24
  21 #define ACC_BM1_PRD                     0x2C
  22 #define ACC_BM0_STATUS                  0x21
  23 #define ACC_BM1_STATUS                  0x29
  24 #define ACC_BM0_PNTR                    0x60
  25 #define ACC_BM1_PNTR                    0x64
  26 
  27 /* acc_codec bar0 reg bits */
  28 /* ACC_IRQ_STATUS */
  29 #define IRQ_STS                         0
  30 #define WU_IRQ_STS                      1
  31 #define BM0_IRQ_STS                     2
  32 #define BM1_IRQ_STS                     3
  33 /* ACC_BMX_STATUS */
  34 #define EOP                             (1<<0)
  35 #define BM_EOP_ERR                      (1<<1)
  36 /* ACC_BMX_CTL */
  37 #define BM_CTL_EN                       0x01
  38 #define BM_CTL_PAUSE                    0x03
  39 #define BM_CTL_DIS                      0x00
  40 #define BM_CTL_BYTE_ORD_LE              0x00
  41 #define BM_CTL_BYTE_ORD_BE              0x04
  42 /* cs5535 specific ac97 codec register defines */
  43 #define CMD_MASK                        0xFF00FFFF
  44 #define CMD_NEW                         0x00010000
  45 #define STS_NEW                         0x00020000
  46 #define PRM_RDY_STS                     0x00800000
  47 #define ACC_CODEC_CNTL_WR_CMD           (~0x80000000)
  48 #define ACC_CODEC_CNTL_RD_CMD           0x80000000
  49 #define ACC_CODEC_CNTL_LNK_SHUTDOWN     0x00040000
  50 #define ACC_CODEC_CNTL_LNK_WRM_RST      0x00020000
  51 #define PRD_JMP                         0x2000
  52 #define PRD_EOP                         0x4000
  53 #define PRD_EOT                         0x8000
  54 
  55 enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
  56 
  57 struct cs5535audio;
  58 
  59 struct cs5535audio_dma_ops {
  60         int type;
  61         void (*enable_dma)(struct cs5535audio *cs5535au);
  62         void (*disable_dma)(struct cs5535audio *cs5535au);
  63         void (*pause_dma)(struct cs5535audio *cs5535au);
  64         void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr);
  65         u32 (*read_prd)(struct cs5535audio *cs5535au);
  66         u32 (*read_dma_pntr)(struct cs5535audio *cs5535au);
  67 };
  68 
  69 struct cs5535audio_dma_desc {
  70         __le32 addr;
  71         __le16 size;
  72         __le16 ctlreserved;
  73 };
  74 
  75 struct cs5535audio_dma {
  76         const struct cs5535audio_dma_ops *ops;
  77         struct snd_dma_buffer desc_buf;
  78         struct snd_pcm_substream *substream;
  79         unsigned int buf_addr, buf_bytes;
  80         unsigned int period_bytes, periods;
  81         u32 saved_prd;
  82         int pcm_open_flag;
  83 };
  84 
  85 struct cs5535audio {
  86         struct snd_card *card;
  87         struct snd_ac97 *ac97;
  88         struct snd_pcm *pcm;
  89         int irq;
  90         struct pci_dev *pci;
  91         unsigned long port;
  92         spinlock_t reg_lock;
  93         struct snd_pcm_substream *playback_substream;
  94         struct snd_pcm_substream *capture_substream;
  95         struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
  96 };
  97 
  98 extern const struct dev_pm_ops snd_cs5535audio_pm;
  99 
 100 #ifdef CONFIG_OLPC
 101 void olpc_prequirks(struct snd_card *card,
 102                     struct snd_ac97_template *ac97);
 103 int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
 104 void olpc_quirks_cleanup(void);
 105 void olpc_analog_input(struct snd_ac97 *ac97, int on);
 106 void olpc_mic_bias(struct snd_ac97 *ac97, int on);
 107 
 108 static inline void olpc_capture_open(struct snd_ac97 *ac97)
 109 {
 110         /* default to Analog Input off */
 111         olpc_analog_input(ac97, 0);
 112         /* enable MIC Bias for recording */
 113         olpc_mic_bias(ac97, 1);
 114 }
 115 
 116 static inline void olpc_capture_close(struct snd_ac97 *ac97)
 117 {
 118         /* disable Analog Input */
 119         olpc_analog_input(ac97, 0);
 120         /* disable the MIC Bias (so the recording LED turns off) */
 121         olpc_mic_bias(ac97, 0);
 122 }
 123 #else
 124 static inline void olpc_prequirks(struct snd_card *card,
 125                 struct snd_ac97_template *ac97) { }
 126 static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 127 {
 128         return 0;
 129 }
 130 static inline void olpc_quirks_cleanup(void) { }
 131 static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { }
 132 static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { }
 133 static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
 134 static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
 135 #endif
 136 
 137 int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
 138 
 139 #endif /* __SOUND_CS5535AUDIO_H */
 140