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