summaryrefslogtreecommitdiff
path: root/sound/oss/dmasound/tas_common.h
blob: 0741c28e56ce6639f79b23966095be2b9f3e8afe (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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
#ifndef _TAS_COMMON_H_
#define _TAS_COMMON_H_

#include <linux/i2c.h>
#include <linux/soundcard.h>
#include <asm/string.h>

#define I2C_DRIVERID_TAS_BASE   (0xFEBA)

#define SET_4_20(shadow, offset, val)                        \
	do {                                                 \
		(shadow)[(offset)+0] = ((val) >> 16) & 0xff; \
		(shadow)[(offset)+1] = ((val) >> 8)  & 0xff; \
		(shadow)[(offset)+2] = ((val) >> 0)  & 0xff; \
	} while (0)

#define GET_4_20(shadow, offset)                             \
	(((u_int)((shadow)[(offset)+0]) << 16) |             \
	 ((u_int)((shadow)[(offset)+1]) <<  8) |             \
	 ((u_int)((shadow)[(offset)+2]) <<  0))


#define TAS_BIQUAD_FAST_LOAD 0x01

#define TAS_DRCE_ENABLE           0x01
#define TAS_DRCE_ABOVE_RATIO      0x02
#define TAS_DRCE_BELOW_RATIO      0x04
#define TAS_DRCE_THRESHOLD        0x08
#define TAS_DRCE_ENERGY           0x10
#define TAS_DRCE_ATTACK           0x20
#define TAS_DRCE_DECAY            0x40

#define TAS_DRCE_ALL              0x7f


#define TAS_OUTPUT_HEADPHONES     0x00
#define TAS_OUTPUT_INTERNAL_SPKR  0x01
#define TAS_OUTPUT_EXTERNAL_SPKR  0x02


union tas_biquad_t {
	struct {
		int b0,b1,b2,a1,a2;
	} coeff;
	int buf[5];
};

struct tas_biquad_ctrl_t {
	u_int channel:4;
	u_int filter:4;

	union tas_biquad_t data;
};

struct tas_biquad_ctrl_list_t {
	int flags;
	int filter_count;
	struct tas_biquad_ctrl_t biquads[0];
};

struct tas_ratio_t {
	unsigned short val;    /* 8.8                        */
	unsigned short expand; /* 0 = compress, !0 = expand. */
};

struct tas_drce_t {
	unsigned short enable;
	struct tas_ratio_t above;
	struct tas_ratio_t below;
	short threshold;       /* dB,       8.8 signed    */
	unsigned short energy; /* seconds,  4.12 unsigned */
	unsigned short attack; /* seconds,  4.12 unsigned */
	unsigned short decay;  /* seconds,  4.12 unsigned */
};

struct tas_drce_ctrl_t {
	uint flags;

	struct tas_drce_t data;
};

struct tas_gain_t
{
  unsigned int *master;
  unsigned int *treble;
  unsigned int *bass;
  unsigned int *mixer;
};

typedef char tas_shadow_t[0x45];

struct tas_data_t
{
	struct i2c_client *client;
	tas_shadow_t *shadow;
	uint mixer[SOUND_MIXER_NRDEVICES];
};

typedef int (*tas_hook_init_t)(struct i2c_client *);
typedef int (*tas_hook_post_init_t)(struct tas_data_t *);
typedef void (*tas_hook_uninit_t)(struct tas_data_t *);

typedef int (*tas_hook_get_mixer_level_t)(struct tas_data_t *,int,uint *);
typedef int (*tas_hook_set_mixer_level_t)(struct tas_data_t *,int,uint);

typedef int (*tas_hook_enter_sleep_t)(struct tas_data_t *);
typedef int (*tas_hook_leave_sleep_t)(struct tas_data_t *);

typedef int (*tas_hook_supported_mixers_t)(struct tas_data_t *);
typedef int (*tas_hook_mixer_is_stereo_t)(struct tas_data_t *,int);
typedef int (*tas_hook_stereo_mixers_t)(struct tas_data_t *);

typedef int (*tas_hook_output_device_change_t)(struct tas_data_t *,int,int,int);
typedef int (*tas_hook_device_ioctl_t)(struct tas_data_t *,u_int,u_long);

struct tas_driver_hooks_t {
	/*
	 * All hardware initialisation must be performed in
	 * post_init(), as tas_dmasound_init() does a hardware reset.
	 *
	 * init() is called before tas_dmasound_init() so that
	 * ouput_device_change() is always called after i2c driver
	 * initialisation. The implication is that
	 * output_device_change() must cope with the fact that it
	 * may be called before post_init().
	 */

	tas_hook_init_t                   init;
	tas_hook_post_init_t              post_init;
	tas_hook_uninit_t                 uninit;

	tas_hook_get_mixer_level_t        get_mixer_level;
	tas_hook_set_mixer_level_t        set_mixer_level;

	tas_hook_enter_sleep_t            enter_sleep;
	tas_hook_leave_sleep_t            leave_sleep;

	tas_hook_supported_mixers_t       supported_mixers;
	tas_hook_mixer_is_stereo_t        mixer_is_stereo;
	tas_hook_stereo_mixers_t          stereo_mixers;

	tas_hook_output_device_change_t   output_device_change;
	tas_hook_device_ioctl_t           device_ioctl;
};

enum tas_write_mode_t {
	WRITE_HW     = 0x01,
	WRITE_SHADOW = 0x02,
	WRITE_NORMAL = 0x03,
	FORCE_WRITE  = 0x04
};

static inline uint
tas_mono_to_stereo(uint mono)
{
	mono &=0xff;
	return mono | (mono<<8);
}

/*
 * Todo: make these functions a bit more efficient !
 */
static inline int
tas_write_register(	struct tas_data_t *self,
			uint reg_num,
			uint reg_width,
			char *data,
			uint write_mode)
{
	int rc;

	if (reg_width==0 || data==NULL || self==NULL)
		return -EINVAL;
	if (!(write_mode & FORCE_WRITE) &&
	    !memcmp(data,self->shadow[reg_num],reg_width))
	    	return 0;

	if (write_mode & WRITE_SHADOW)
		memcpy(self->shadow[reg_num],data,reg_width);
	if (write_mode & WRITE_HW) {
		rc=i2c_smbus_write_i2c_block_data(self->client,
						  reg_num,
						  reg_width,
						  data);
		if (rc < 0) {
			printk("tas: I2C block write failed \n");  
			return rc; 
		}
	}
	return 0;
}

static inline int
tas_sync_register(	struct tas_data_t *self,
			uint reg_num,
			uint reg_width)
{
	int rc;

	if (reg_width==0 || self==NULL)
		return -EINVAL;
	rc=i2c_smbus_write_i2c_block_data(self->client,
					  reg_num,
					  reg_width,
					  self->shadow[reg_num]);
	if (rc < 0) {
		printk("tas: I2C block write failed \n");
		return rc;
	}
	return 0;
}

static inline int
tas_write_byte_register(	struct tas_data_t *self,
				uint reg_num,
				char data,
				uint write_mode)
{
	if (self==NULL)
		return -1;
	if (!(write_mode & FORCE_WRITE) && data != self->shadow[reg_num][0])
		return 0;
	if (write_mode & WRITE_SHADOW)
		self->shadow[reg_num][0]=data;
	if (write_mode & WRITE_HW) {
		if (i2c_smbus_write_byte_data(self->client, reg_num, data) < 0) {
			printk("tas: I2C byte write failed \n");  
			return -1; 
		}
	}
	return 0;
}

static inline int
tas_sync_byte_register(	struct tas_data_t *self,
			uint reg_num,
			uint reg_width)
{
	if (reg_width==0 || self==NULL)
		return -1;
	if (i2c_smbus_write_byte_data(
	    self->client, reg_num, self->shadow[reg_num][0]) < 0) {
		printk("tas: I2C byte write failed \n");
		return -1;
	}
	return 0;
}

static inline int
tas_read_register(	struct tas_data_t *self,
			uint reg_num,
			uint reg_width,
			char *data)
{
	if (reg_width==0 || data==NULL || self==NULL)
		return -1;
	memcpy(data,self->shadow[reg_num],reg_width);
	return 0;
}

extern int tas_register_driver(struct tas_driver_hooks_t *hooks);

extern int tas_get_mixer_level(int mixer,uint *level);
extern int tas_set_mixer_level(int mixer,uint level);
extern int tas_enter_sleep(void);
extern int tas_leave_sleep(void);
extern int tas_supported_mixers(void);
extern int tas_mixer_is_stereo(int mixer);
extern int tas_stereo_mixers(void);
extern int tas_output_device_change(int,int,int);
extern int tas_device_ioctl(u_int, u_long);

extern void tas_cleanup(void);
extern int tas_init(int driver_id,const char *driver_name);
extern int tas_post_init(void);

#endif /* _TAS_COMMON_H_ */
/*
 * Local Variables:
 * tab-width: 8
 * indent-tabs-mode: t
 * c-basic-offset: 8
 * End:
 */