LXR linux/sound/pci/cs5535audio/cs5535audio.h

   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
  55enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
  56
  57struct cs5535audio;
  58
  59struct 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
  69struct cs5535audio_dma_desc {
  70        __le32 addr;
  71        __le16 size;
  72        __le16 ctlreserved;
  73};
  74
  75struct 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
  85struct 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
  98extern const struct dev_pm_ops snd_cs5535audio_pm;
  99
 100#ifdef CONFIG_OLPC
 101void olpc_prequirks(struct snd_card *card,
 102                    struct snd_ac97_template *ac97);
 103int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
 104void olpc_quirks_cleanup(void);
 105void olpc_analog_input(struct snd_ac97 *ac97, int on);
 106void olpc_mic_bias(struct snd_ac97 *ac97, int on);
 107
 108static 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
 116static 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
 124static inline void olpc_prequirks(struct snd_card *card,
 125                struct snd_ac97_template *ac97) { }
 126static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 127{
 128        return 0;
 129}
 130static inline void olpc_quirks_cleanup(void) { }
 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 snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
 138
 139#endif /* __SOUND_CS5535AUDIO_H */
 140
 141