summaryrefslogtreecommitdiffstats
path: root/sound/oss/ad1889.h
blob: 09913765967a3b1ff6bd3623281e73bae52128d8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
#ifndef _AD1889_H_
#define _AD1889_H_

#define AD_DS_WSMC	0x00	/* DMA input wave/syn mixer control */
#define AD_DS_RAMC	0x02	/* DMA output resamp/ADC mixer control */
#define AD_DS_WADA	0x04	/* DMA input wave attenuation */
#define AD_DS_SYDA	0x06	/* DMA input syn attentuation */
#define AD_DS_WAS	0x08	/* wave input sample rate */
#define AD_DS_RES	0x0a	/* resampler output sample rate */
#define AD_DS_CCS	0x0c	/* chip control/status */

#define AD_DMA_RESBA	0x40	/* RES base addr */
#define AD_DMA_RESCA	0x44	/* RES current addr */
#define AD_DMA_RESBC	0x48	/* RES base cnt */
#define AD_DMA_RESCC	0x4c	/* RES current count */
#define AD_DMA_ADCBA	0x50	/* ADC */
#define AD_DMA_ADCCA	0x54
#define AD_DMA_ADCBC	0x58
#define AD_DMA_ADCCC	0x5c
#define AD_DMA_SYNBA	0x60	/* SYN */
#define AD_DMA_SYNCA	0x64
#define AD_DMA_SYNBC	0x68
#define AD_DMA_SYNCC	0x6c
#define AD_DMA_WAVBA	0x70	/* WAV */
#define AD_DMA_WAVCA	0x74
#define AD_DMA_WAVBC	0x78
#define AD_DMA_WAVCC	0x7c
#define AD_DMA_RESICC	0x80	/* RES interrupt current count */
#define AD_DMA_RESIBC	0x84	/* RES interrupt base count */
#define AD_DMA_ADCICC	0x88	/* ADC interrupt current count */
#define AD_DMA_ADCIBC	0x8c	/* ADC interrupt base count */
#define AD_DMA_SYNICC	0x90	/* SYN interrupt current count */
#define AD_DMA_SYNIBC	0x94	/* SYN interrupt base count */
#define AD_DMA_WAVICC	0x98	/* WAV interrupt current count */
#define AD_DMA_WAVIBC	0x9c	/* WAV interrupt base count */
#define AD_DMA_RESCTRL	0xa0	/* RES PCI control/status */
#define AD_DMA_ADCCTRL	0xa8	/* ADC PCI control/status */
#define AD_DMA_SYNCTRL	0xb0	/* SYN PCI control/status */
#define AD_DMA_WAVCTRL	0xb8	/* WAV PCI control/status */
#define AD_DMA_DISR	0xc0	/* PCI DMA intr status */
#define AD_DMA_CHSS	0xc4	/* PCI DMA channel stop status */

#define AD_GPIO_IPC	0xc8	/* IO port ctrl */
#define AD_GPIO_OP	0xca	/* IO output status */
#define AD_GPIO_IP	0xcc	/* IO input status */

/* AC97 registers, 0x100 - 0x17f; see ac97.h */
#define AD_AC97_BASE    0x100   /* ac97 base register */
#define AD_AC97_ACIC	0x180	/* AC Link interface ctrl */

/* OPL3; BAR1 */
#define AD_OPL_M0AS	0x00	/* Music0 address/status */
#define AD_OPL_M0DATA	0x01	/* Music0 data */
#define AD_OPL_M1A	0x02	/* Music1 address */
#define AD_OPL_M1DATA	0x03	/* Music1 data */
/* 0x04-0x0f reserved */

/* MIDI; BAR2 */
#define AD_MIDA		0x00	/* MIDI data */
#define AD_MISC		0x01	/* MIDI status/cmd */
/* 0x02-0xff reserved */

#define AD_DS_IOMEMSIZE	512
#define AD_OPL_MEMSIZE	16
#define AD_MIDI_MEMSIZE	16

#define AD_WAV_STATE	0
#define AD_ADC_STATE	1
#define AD_MAX_STATES	2

#define DMA_SIZE	(128*1024)

#define DMA_FLAG_MAPPED	1

struct ad1889_dev;

typedef struct ad1889_state {
	struct ad1889_dev *card;

	mode_t open_mode;
	struct dmabuf {
		unsigned int rate;
		unsigned char fmt, enable;

		/* buf management */
		size_t rawbuf_size;
		void *rawbuf;
		dma_addr_t dma_handle;	/* mapped address */
		unsigned long dma_len;	/* number of bytes mapped */

		/* indexes into rawbuf for setting up DMA engine */
		volatile unsigned long rd_ptr, wr_ptr;

		wait_queue_head_t wait; /* to wait for buf servicing */

		/* OSS bits */
		unsigned int mapped:1;
		unsigned int ready:1;
		unsigned int ossfragshift;
		int ossmaxfrags;
		unsigned int subdivision;
	} dmabuf;

	struct mutex mutex;
} ad1889_state_t;

typedef struct ad1889_dev {
	void __iomem *regbase;
	struct pci_dev *pci;
	
	spinlock_t lock;

	int dev_audio;

	/* states; one per channel; right now only WAV and ADC */
	struct ad1889_state state[AD_MAX_STATES];

	/* AC97 codec */
	struct ac97_codec *ac97_codec;
	u16 ac97_features;

	/* debugging stuff */
	struct stats {
		unsigned int wav_intrs, adc_intrs;
		unsigned int blocks, underrun, error;
	} stats;
} ad1889_dev_t;

typedef struct ad1889_reg {
	const char *name;
	int offset;
	int width;
} ad1889_reg_t;

#endif
OpenPOWER on IntegriCloud