[ALSA] Add support for the CS5535 Audio device
[linux-2.6.git] / sound / pci / cs5535audio / cs5535audio.h
1 #ifndef __SOUND_CS5535AUDIO_H
2 #define __SOUND_CS5535AUDIO_H
3
4 #define cs_writel(cs5535au, reg, val) outl(val, (int) cs5535au->port + reg)
5 #define cs_writeb(cs5535au, reg, val) outb(val, (int) cs5535au->port + reg)
6 #define cs_readl(cs5535au, reg) inl((unsigned short) (cs5535au->port + reg))
7 #define cs_readw(cs5535au, reg) inw((unsigned short) (cs5535au->port + reg))
8 #define cs_readb(cs5535au, reg) inb((unsigned short) (cs5535au->port + reg))
9
10 #define CS5535AUDIO_MAX_DESCRIPTORS     128
11
12 /* acc_codec bar0 reg addrs */
13 #define ACC_GPIO_STATUS                 0x00
14 #define ACC_CODEC_STATUS                0x08
15 #define ACC_CODEC_CNTL                  0x0C
16 #define ACC_IRQ_STATUS                  0x12
17 #define ACC_BM0_CMD                     0x20
18 #define ACC_BM1_CMD                     0x28
19 #define ACC_BM2_CMD                     0x30
20 #define ACC_BM3_CMD                     0x38
21 #define ACC_BM4_CMD                     0x40
22 #define ACC_BM5_CMD                     0x48
23 #define ACC_BM6_CMD                     0x50
24 #define ACC_BM7_CMD                     0x58
25 #define ACC_BM0_PRD                     0x24
26 #define ACC_BM1_PRD                     0x2C
27 #define ACC_BM2_PRD                     0x34
28 #define ACC_BM3_PRD                     0x3C
29 #define ACC_BM4_PRD                     0x44
30 #define ACC_BM5_PRD                     0x4C
31 #define ACC_BM6_PRD                     0x54
32 #define ACC_BM7_PRD                     0x5C
33 #define ACC_BM0_STATUS                  0x21
34 #define ACC_BM1_STATUS                  0x29
35 #define ACC_BM2_STATUS                  0x31
36 #define ACC_BM3_STATUS                  0x39
37 #define ACC_BM4_STATUS                  0x41
38 #define ACC_BM5_STATUS                  0x49
39 #define ACC_BM6_STATUS                  0x51
40 #define ACC_BM7_STATUS                  0x59
41 #define ACC_BM0_PNTR                    0x60
42 #define ACC_BM1_PNTR                    0x64
43 #define ACC_BM2_PNTR                    0x68
44 #define ACC_BM3_PNTR                    0x6C
45 #define ACC_BM4_PNTR                    0x70
46 #define ACC_BM5_PNTR                    0x74
47 #define ACC_BM6_PNTR                    0x78
48 #define ACC_BM7_PNTR                    0x7C
49 /* acc_codec bar0 reg bits */
50 /* ACC_IRQ_STATUS */
51 #define IRQ_STS                         0
52 #define WU_IRQ_STS                      1
53 #define BM0_IRQ_STS                     2
54 #define BM1_IRQ_STS                     3
55 #define BM2_IRQ_STS                     4
56 #define BM3_IRQ_STS                     5
57 #define BM4_IRQ_STS                     6
58 #define BM5_IRQ_STS                     7
59 #define BM6_IRQ_STS                     8
60 #define BM7_IRQ_STS                     9
61 /* ACC_BMX_STATUS */
62 #define EOP                             (1<<0)
63 #define BM_EOP_ERR                      (1<<1)
64 /* ACC_BMX_CTL */
65 #define BM_CTL_EN                       0x00000001
66 #define BM_CTL_PAUSE                    0x00000011
67 #define BM_CTL_DIS                      0x00000000
68 #define BM_CTL_BYTE_ORD_LE              0x00000000
69 #define BM_CTL_BYTE_ORD_BE              0x00000100
70 /* cs5535 specific ac97 codec register defines */
71 #define CMD_MASK                        0xFF00FFFF
72 #define CMD_NEW                         0x00010000
73 #define STS_NEW                         0x00020000
74 #define PRM_RDY_STS                     0x00800000
75 #define ACC_CODEC_CNTL_WR_CMD           (~0x80000000)
76 #define ACC_CODEC_CNTL_RD_CMD           0x80000000
77 #define PRD_JMP                         0x2000
78 #define PRD_EOP                         0x4000
79 #define PRD_EOT                         0x8000
80
81 typedef struct _snd_cs5535audio cs5535audio_t;
82 typedef struct snd_cs5535audio_dma cs5535audio_dma_t;
83 typedef struct snd_cs5535audio_dma_ops cs5535audio_dma_ops_t;
84
85 enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
86 struct snd_cs5535audio_dma_ops {
87         int type;
88         void (*enable_dma)(cs5535audio_t *cs5535au);
89         void (*disable_dma)(cs5535audio_t *cs5535au);
90         void (*pause_dma)(cs5535audio_t *cs5535au);
91         void (*setup_prd)(cs5535audio_t *cs5535au, u32 prd_addr);
92         u32 (*read_dma_pntr)(cs5535audio_t *cs5535au);
93 };
94
95 typedef struct cs5535audio_dma_desc {
96         u32 addr;
97         u16 size;
98         u16 ctlreserved;
99 } cs5535audio_dma_desc_t;
100
101 struct snd_cs5535audio_dma {
102         const cs5535audio_dma_ops_t *ops;
103         struct snd_dma_buffer desc_buf;
104         snd_pcm_substream_t *substream;
105         unsigned int buf_addr, buf_bytes;
106         unsigned int period_bytes, periods;
107 };
108
109 struct _snd_cs5535audio {
110         snd_card_t *card;
111         ac97_t *ac97;
112         int irq;
113         struct pci_dev *pci;
114         unsigned long port;
115         spinlock_t reg_lock;
116         snd_pcm_substream_t *playback_substream;
117         snd_pcm_substream_t *capture_substream;
118         cs5535audio_dma_t dmas[NUM_CS5535AUDIO_DMAS];
119 };
120
121 int __devinit snd_cs5535audio_pcm(cs5535audio_t *cs5535audio);
122 #endif /* __SOUND_CS5535AUDIO_H */
123