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 u32 addr; 71 u16 size; 72 u16 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 */ 140 141