141 lines
4 KiB
C
141 lines
4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __SOUND_CS5535AUDIO_H
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#define __SOUND_CS5535AUDIO_H
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#define cs_writel(cs5535au, reg, val) outl(val, (cs5535au)->port + reg)
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#define cs_writeb(cs5535au, reg, val) outb(val, (cs5535au)->port + reg)
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#define cs_readl(cs5535au, reg) inl((cs5535au)->port + reg)
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#define cs_readw(cs5535au, reg) inw((cs5535au)->port + reg)
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#define cs_readb(cs5535au, reg) inb((cs5535au)->port + reg)
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#define CS5535AUDIO_MAX_DESCRIPTORS 128
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/* acc_codec bar0 reg addrs */
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#define ACC_GPIO_STATUS 0x00
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#define ACC_CODEC_STATUS 0x08
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#define ACC_CODEC_CNTL 0x0C
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#define ACC_IRQ_STATUS 0x12
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#define ACC_BM0_CMD 0x20
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#define ACC_BM1_CMD 0x28
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#define ACC_BM0_PRD 0x24
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#define ACC_BM1_PRD 0x2C
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#define ACC_BM0_STATUS 0x21
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#define ACC_BM1_STATUS 0x29
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#define ACC_BM0_PNTR 0x60
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#define ACC_BM1_PNTR 0x64
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/* acc_codec bar0 reg bits */
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/* ACC_IRQ_STATUS */
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#define IRQ_STS 0
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#define WU_IRQ_STS 1
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#define BM0_IRQ_STS 2
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#define BM1_IRQ_STS 3
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/* ACC_BMX_STATUS */
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#define EOP (1<<0)
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#define BM_EOP_ERR (1<<1)
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/* ACC_BMX_CTL */
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#define BM_CTL_EN 0x01
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#define BM_CTL_PAUSE 0x03
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#define BM_CTL_DIS 0x00
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#define BM_CTL_BYTE_ORD_LE 0x00
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#define BM_CTL_BYTE_ORD_BE 0x04
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/* cs5535 specific ac97 codec register defines */
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#define CMD_MASK 0xFF00FFFF
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#define CMD_NEW 0x00010000
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#define STS_NEW 0x00020000
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#define PRM_RDY_STS 0x00800000
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#define ACC_CODEC_CNTL_WR_CMD (~0x80000000)
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#define ACC_CODEC_CNTL_RD_CMD 0x80000000
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#define ACC_CODEC_CNTL_LNK_SHUTDOWN 0x00040000
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#define ACC_CODEC_CNTL_LNK_WRM_RST 0x00020000
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#define PRD_JMP 0x2000
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#define PRD_EOP 0x4000
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#define PRD_EOT 0x8000
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enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
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struct cs5535audio;
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struct cs5535audio_dma_ops {
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int type;
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void (*enable_dma)(struct cs5535audio *cs5535au);
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void (*disable_dma)(struct cs5535audio *cs5535au);
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void (*pause_dma)(struct cs5535audio *cs5535au);
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void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr);
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u32 (*read_prd)(struct cs5535audio *cs5535au);
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u32 (*read_dma_pntr)(struct cs5535audio *cs5535au);
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};
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struct cs5535audio_dma_desc {
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__le32 addr;
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__le16 size;
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__le16 ctlreserved;
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};
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struct cs5535audio_dma {
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const struct cs5535audio_dma_ops *ops;
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struct snd_dma_buffer desc_buf;
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struct snd_pcm_substream *substream;
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unsigned int buf_addr, buf_bytes;
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unsigned int period_bytes, periods;
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u32 saved_prd;
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int pcm_open_flag;
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};
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struct cs5535audio {
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struct snd_card *card;
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struct snd_ac97 *ac97;
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struct snd_pcm *pcm;
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int irq;
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struct pci_dev *pci;
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unsigned long port;
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spinlock_t reg_lock;
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struct snd_pcm_substream *playback_substream;
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struct snd_pcm_substream *capture_substream;
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struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
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};
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extern const struct dev_pm_ops snd_cs5535audio_pm;
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#ifdef CONFIG_OLPC
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void olpc_prequirks(struct snd_card *card,
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struct snd_ac97_template *ac97);
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int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
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void olpc_quirks_cleanup(void);
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void olpc_analog_input(struct snd_ac97 *ac97, int on);
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void olpc_mic_bias(struct snd_ac97 *ac97, int on);
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static inline void olpc_capture_open(struct snd_ac97 *ac97)
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{
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/* default to Analog Input off */
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olpc_analog_input(ac97, 0);
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/* enable MIC Bias for recording */
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olpc_mic_bias(ac97, 1);
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}
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static inline void olpc_capture_close(struct snd_ac97 *ac97)
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{
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/* disable Analog Input */
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olpc_analog_input(ac97, 0);
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/* disable the MIC Bias (so the recording LED turns off) */
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olpc_mic_bias(ac97, 0);
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}
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#else
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static inline void olpc_prequirks(struct snd_card *card,
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struct snd_ac97_template *ac97) { }
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static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
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{
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return 0;
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}
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static inline void olpc_quirks_cleanup(void) { }
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static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { }
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static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { }
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static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
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static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
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#endif
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int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
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#endif /* __SOUND_CS5535AUDIO_H */
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