141 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __SOUND_CS5535AUDIO_H3#define __SOUND_CS5535AUDIO_H4 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 12812 13/* acc_codec bar0 reg addrs */14#define ACC_GPIO_STATUS 0x0015#define ACC_CODEC_STATUS 0x0816#define ACC_CODEC_CNTL 0x0C17#define ACC_IRQ_STATUS 0x1218#define ACC_BM0_CMD 0x2019#define ACC_BM1_CMD 0x2820#define ACC_BM0_PRD 0x2421#define ACC_BM1_PRD 0x2C22#define ACC_BM0_STATUS 0x2123#define ACC_BM1_STATUS 0x2924#define ACC_BM0_PNTR 0x6025#define ACC_BM1_PNTR 0x6426 27/* acc_codec bar0 reg bits */28/* ACC_IRQ_STATUS */29#define IRQ_STS 030#define WU_IRQ_STS 131#define BM0_IRQ_STS 232#define BM1_IRQ_STS 333/* ACC_BMX_STATUS */34#define EOP (1<<0)35#define BM_EOP_ERR (1<<1)36/* ACC_BMX_CTL */37#define BM_CTL_EN 0x0138#define BM_CTL_PAUSE 0x0339#define BM_CTL_DIS 0x0040#define BM_CTL_BYTE_ORD_LE 0x0041#define BM_CTL_BYTE_ORD_BE 0x0442/* cs5535 specific ac97 codec register defines */43#define CMD_MASK 0xFF00FFFF44#define CMD_NEW 0x0001000045#define STS_NEW 0x0002000046#define PRM_RDY_STS 0x0080000047#define ACC_CODEC_CNTL_WR_CMD (~0x80000000)48#define ACC_CODEC_CNTL_RD_CMD 0x8000000049#define ACC_CODEC_CNTL_LNK_SHUTDOWN 0x0004000050#define ACC_CODEC_CNTL_LNK_WRM_RST 0x0002000051#define PRD_JMP 0x200052#define PRD_EOP 0x400053#define PRD_EOT 0x800054 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_OLPC101void 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#else124static 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#endif136 137int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);138 139#endif /* __SOUND_CS5535AUDIO_H */140 141