root / hw / wm8750.c @ 7f23f812
History | View | Annotate | Download (20.4 kB)
1 |
/*
|
---|---|
2 |
* WM8750 audio CODEC.
|
3 |
*
|
4 |
* Copyright (c) 2006 Openedhand Ltd.
|
5 |
* Written by Andrzej Zaborowski <balrog@zabor.org>
|
6 |
*
|
7 |
* This file is licensed under GNU GPL.
|
8 |
*/
|
9 |
|
10 |
#include "hw.h" |
11 |
#include "i2c.h" |
12 |
#include "audio/audio.h" |
13 |
|
14 |
#define IN_PORT_N 3 |
15 |
#define OUT_PORT_N 3 |
16 |
|
17 |
#define CODEC "wm8750" |
18 |
|
19 |
typedef struct { |
20 |
int adc;
|
21 |
int adc_hz;
|
22 |
int dac;
|
23 |
int dac_hz;
|
24 |
} WMRate; |
25 |
|
26 |
typedef struct { |
27 |
i2c_slave i2c; |
28 |
uint8_t i2c_data[2];
|
29 |
int i2c_len;
|
30 |
QEMUSoundCard card; |
31 |
SWVoiceIn *adc_voice[IN_PORT_N]; |
32 |
SWVoiceOut *dac_voice[OUT_PORT_N]; |
33 |
int enable;
|
34 |
void (*data_req)(void *, int, int); |
35 |
void *opaque;
|
36 |
uint8_t data_in[4096];
|
37 |
uint8_t data_out[4096];
|
38 |
int idx_in, req_in;
|
39 |
int idx_out, req_out;
|
40 |
|
41 |
SWVoiceOut **out[2];
|
42 |
uint8_t outvol[7], outmute[2]; |
43 |
SWVoiceIn **in[2];
|
44 |
uint8_t invol[4], inmute[2]; |
45 |
|
46 |
uint8_t diff[2], pol, ds, monomix[2], alc, mute; |
47 |
uint8_t path[4], mpath[2], power, format; |
48 |
const WMRate *rate;
|
49 |
uint8_t rate_vmstate; |
50 |
int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master;
|
51 |
} WM8750State; |
52 |
|
53 |
/* pow(10.0, -i / 20.0) * 255, i = 0..42 */
|
54 |
static const uint8_t wm8750_vol_db_table[] = { |
55 |
255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45, |
56 |
40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5, |
57 |
4, 4, 3, 3, 3, 2, 2 |
58 |
}; |
59 |
|
60 |
#define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3] |
61 |
#define WM8750_INVOL_TRANSFORM(x) (x << 2) |
62 |
|
63 |
static inline void wm8750_in_load(WM8750State *s) |
64 |
{ |
65 |
int acquired;
|
66 |
if (s->idx_in + s->req_in <= sizeof(s->data_in)) |
67 |
return;
|
68 |
s->idx_in = audio_MAX(0, (int) sizeof(s->data_in) - s->req_in); |
69 |
acquired = AUD_read(*s->in[0], s->data_in + s->idx_in,
|
70 |
sizeof(s->data_in) - s->idx_in);
|
71 |
} |
72 |
|
73 |
static inline void wm8750_out_flush(WM8750State *s) |
74 |
{ |
75 |
int sent = 0; |
76 |
while (sent < s->idx_out)
|
77 |
sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent)
|
78 |
?: s->idx_out; |
79 |
s->idx_out = 0;
|
80 |
} |
81 |
|
82 |
static void wm8750_audio_in_cb(void *opaque, int avail_b) |
83 |
{ |
84 |
WM8750State *s = (WM8750State *) opaque; |
85 |
s->req_in = avail_b; |
86 |
s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2); |
87 |
} |
88 |
|
89 |
static void wm8750_audio_out_cb(void *opaque, int free_b) |
90 |
{ |
91 |
WM8750State *s = (WM8750State *) opaque; |
92 |
|
93 |
if (s->idx_out >= free_b) {
|
94 |
s->idx_out = free_b; |
95 |
s->req_out = 0;
|
96 |
wm8750_out_flush(s); |
97 |
} else
|
98 |
s->req_out = free_b - s->idx_out; |
99 |
|
100 |
s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2); |
101 |
} |
102 |
|
103 |
static const WMRate wm_rate_table[] = { |
104 |
{ 256, 48000, 256, 48000 }, /* SR: 00000 */ |
105 |
{ 384, 48000, 384, 48000 }, /* SR: 00001 */ |
106 |
{ 256, 48000, 1536, 8000 }, /* SR: 00010 */ |
107 |
{ 384, 48000, 2304, 8000 }, /* SR: 00011 */ |
108 |
{ 1536, 8000, 256, 48000 }, /* SR: 00100 */ |
109 |
{ 2304, 8000, 384, 48000 }, /* SR: 00101 */ |
110 |
{ 1536, 8000, 1536, 8000 }, /* SR: 00110 */ |
111 |
{ 2304, 8000, 2304, 8000 }, /* SR: 00111 */ |
112 |
{ 1024, 12000, 1024, 12000 }, /* SR: 01000 */ |
113 |
{ 1526, 12000, 1536, 12000 }, /* SR: 01001 */ |
114 |
{ 768, 16000, 768, 16000 }, /* SR: 01010 */ |
115 |
{ 1152, 16000, 1152, 16000 }, /* SR: 01011 */ |
116 |
{ 384, 32000, 384, 32000 }, /* SR: 01100 */ |
117 |
{ 576, 32000, 576, 32000 }, /* SR: 01101 */ |
118 |
{ 128, 96000, 128, 96000 }, /* SR: 01110 */ |
119 |
{ 192, 96000, 192, 96000 }, /* SR: 01111 */ |
120 |
{ 256, 44100, 256, 44100 }, /* SR: 10000 */ |
121 |
{ 384, 44100, 384, 44100 }, /* SR: 10001 */ |
122 |
{ 256, 44100, 1408, 8018 }, /* SR: 10010 */ |
123 |
{ 384, 44100, 2112, 8018 }, /* SR: 10011 */ |
124 |
{ 1408, 8018, 256, 44100 }, /* SR: 10100 */ |
125 |
{ 2112, 8018, 384, 44100 }, /* SR: 10101 */ |
126 |
{ 1408, 8018, 1408, 8018 }, /* SR: 10110 */ |
127 |
{ 2112, 8018, 2112, 8018 }, /* SR: 10111 */ |
128 |
{ 1024, 11025, 1024, 11025 }, /* SR: 11000 */ |
129 |
{ 1536, 11025, 1536, 11025 }, /* SR: 11001 */ |
130 |
{ 512, 22050, 512, 22050 }, /* SR: 11010 */ |
131 |
{ 768, 22050, 768, 22050 }, /* SR: 11011 */ |
132 |
{ 512, 24000, 512, 24000 }, /* SR: 11100 */ |
133 |
{ 768, 24000, 768, 24000 }, /* SR: 11101 */ |
134 |
{ 128, 88200, 128, 88200 }, /* SR: 11110 */ |
135 |
{ 192, 88200, 192, 88200 }, /* SR: 11111 */ |
136 |
}; |
137 |
|
138 |
static void wm8750_vol_update(WM8750State *s) |
139 |
{ |
140 |
/* FIXME: multiply all volumes by s->invol[2], s->invol[3] */
|
141 |
|
142 |
AUD_set_volume_in(s->adc_voice[0], s->mute,
|
143 |
s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
144 |
s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
145 |
AUD_set_volume_in(s->adc_voice[1], s->mute,
|
146 |
s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
147 |
s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
148 |
AUD_set_volume_in(s->adc_voice[2], s->mute,
|
149 |
s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
150 |
s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
151 |
|
152 |
/* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */
|
153 |
|
154 |
/* Speaker: LOUT2VOL ROUT2VOL */
|
155 |
AUD_set_volume_out(s->dac_voice[0], s->mute,
|
156 |
s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]), |
157 |
s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5])); |
158 |
|
159 |
/* Headphone: LOUT1VOL ROUT1VOL */
|
160 |
AUD_set_volume_out(s->dac_voice[1], s->mute,
|
161 |
s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]), |
162 |
s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3])); |
163 |
|
164 |
/* MONOOUT: MONOVOL MONOVOL */
|
165 |
AUD_set_volume_out(s->dac_voice[2], s->mute,
|
166 |
s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]), |
167 |
s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6])); |
168 |
} |
169 |
|
170 |
static void wm8750_set_format(WM8750State *s) |
171 |
{ |
172 |
int i;
|
173 |
struct audsettings in_fmt;
|
174 |
struct audsettings out_fmt;
|
175 |
struct audsettings monoout_fmt;
|
176 |
|
177 |
wm8750_out_flush(s); |
178 |
|
179 |
if (s->in[0] && *s->in[0]) |
180 |
AUD_set_active_in(*s->in[0], 0); |
181 |
if (s->out[0] && *s->out[0]) |
182 |
AUD_set_active_out(*s->out[0], 0); |
183 |
|
184 |
for (i = 0; i < IN_PORT_N; i ++) |
185 |
if (s->adc_voice[i]) {
|
186 |
AUD_close_in(&s->card, s->adc_voice[i]); |
187 |
s->adc_voice[i] = NULL;
|
188 |
} |
189 |
for (i = 0; i < OUT_PORT_N; i ++) |
190 |
if (s->dac_voice[i]) {
|
191 |
AUD_close_out(&s->card, s->dac_voice[i]); |
192 |
s->dac_voice[i] = NULL;
|
193 |
} |
194 |
|
195 |
if (!s->enable)
|
196 |
return;
|
197 |
|
198 |
/* Setup input */
|
199 |
in_fmt.endianness = 0;
|
200 |
in_fmt.nchannels = 2;
|
201 |
in_fmt.freq = s->adc_hz; |
202 |
in_fmt.fmt = AUD_FMT_S16; |
203 |
|
204 |
s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0], |
205 |
CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt);
|
206 |
s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1], |
207 |
CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt);
|
208 |
s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2], |
209 |
CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt);
|
210 |
|
211 |
/* Setup output */
|
212 |
out_fmt.endianness = 0;
|
213 |
out_fmt.nchannels = 2;
|
214 |
out_fmt.freq = s->dac_hz; |
215 |
out_fmt.fmt = AUD_FMT_S16; |
216 |
monoout_fmt.endianness = 0;
|
217 |
monoout_fmt.nchannels = 1;
|
218 |
monoout_fmt.freq = s->rate->dac_hz; |
219 |
monoout_fmt.fmt = AUD_FMT_S16; |
220 |
|
221 |
s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], |
222 |
CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt);
|
223 |
s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1], |
224 |
CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt);
|
225 |
/* MONOMIX is also in stereo for simplicity */
|
226 |
s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2], |
227 |
CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt);
|
228 |
/* no sense emulating OUT3 which is a mix of other outputs */
|
229 |
|
230 |
wm8750_vol_update(s); |
231 |
|
232 |
/* We should connect the left and right channels to their
|
233 |
* respective inputs/outputs but we have completely no need
|
234 |
* for mixing or combining paths to different ports, so we
|
235 |
* connect both channels to where the left channel is routed. */
|
236 |
if (s->in[0] && *s->in[0]) |
237 |
AUD_set_active_in(*s->in[0], 1); |
238 |
if (s->out[0] && *s->out[0]) |
239 |
AUD_set_active_out(*s->out[0], 1); |
240 |
} |
241 |
|
242 |
static void wm8750_clk_update(WM8750State *s, int ext) |
243 |
{ |
244 |
if (s->master || !s->ext_dac_hz)
|
245 |
s->dac_hz = s->rate->dac_hz; |
246 |
else
|
247 |
s->dac_hz = s->ext_dac_hz; |
248 |
|
249 |
if (s->master || !s->ext_adc_hz)
|
250 |
s->adc_hz = s->rate->adc_hz; |
251 |
else
|
252 |
s->adc_hz = s->ext_adc_hz; |
253 |
|
254 |
if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) {
|
255 |
if (!ext)
|
256 |
wm8750_set_format(s); |
257 |
} else {
|
258 |
if (ext)
|
259 |
wm8750_set_format(s); |
260 |
} |
261 |
} |
262 |
|
263 |
static void wm8750_reset(i2c_slave *i2c) |
264 |
{ |
265 |
WM8750State *s = (WM8750State *) i2c; |
266 |
s->rate = &wm_rate_table[0];
|
267 |
s->enable = 0;
|
268 |
wm8750_clk_update(s, 1);
|
269 |
s->diff[0] = 0; |
270 |
s->diff[1] = 0; |
271 |
s->ds = 0;
|
272 |
s->alc = 0;
|
273 |
s->in[0] = &s->adc_voice[0]; |
274 |
s->invol[0] = 0x17; |
275 |
s->invol[1] = 0x17; |
276 |
s->invol[2] = 0xc3; |
277 |
s->invol[3] = 0xc3; |
278 |
s->out[0] = &s->dac_voice[0]; |
279 |
s->outvol[0] = 0xff; |
280 |
s->outvol[1] = 0xff; |
281 |
s->outvol[2] = 0x79; |
282 |
s->outvol[3] = 0x79; |
283 |
s->outvol[4] = 0x79; |
284 |
s->outvol[5] = 0x79; |
285 |
s->outvol[6] = 0x79; |
286 |
s->inmute[0] = 0; |
287 |
s->inmute[1] = 0; |
288 |
s->outmute[0] = 0; |
289 |
s->outmute[1] = 0; |
290 |
s->mute = 1;
|
291 |
s->path[0] = 0; |
292 |
s->path[1] = 0; |
293 |
s->path[2] = 0; |
294 |
s->path[3] = 0; |
295 |
s->mpath[0] = 0; |
296 |
s->mpath[1] = 0; |
297 |
s->format = 0x0a;
|
298 |
s->idx_in = sizeof(s->data_in);
|
299 |
s->req_in = 0;
|
300 |
s->idx_out = 0;
|
301 |
s->req_out = 0;
|
302 |
wm8750_vol_update(s); |
303 |
s->i2c_len = 0;
|
304 |
} |
305 |
|
306 |
static void wm8750_event(i2c_slave *i2c, enum i2c_event event) |
307 |
{ |
308 |
WM8750State *s = (WM8750State *) i2c; |
309 |
|
310 |
switch (event) {
|
311 |
case I2C_START_SEND:
|
312 |
s->i2c_len = 0;
|
313 |
break;
|
314 |
case I2C_FINISH:
|
315 |
#ifdef VERBOSE
|
316 |
if (s->i2c_len < 2) |
317 |
printf("%s: message too short (%i bytes)\n",
|
318 |
__FUNCTION__, s->i2c_len); |
319 |
#endif
|
320 |
break;
|
321 |
default:
|
322 |
break;
|
323 |
} |
324 |
} |
325 |
|
326 |
#define WM8750_LINVOL 0x00 |
327 |
#define WM8750_RINVOL 0x01 |
328 |
#define WM8750_LOUT1V 0x02 |
329 |
#define WM8750_ROUT1V 0x03 |
330 |
#define WM8750_ADCDAC 0x05 |
331 |
#define WM8750_IFACE 0x07 |
332 |
#define WM8750_SRATE 0x08 |
333 |
#define WM8750_LDAC 0x0a |
334 |
#define WM8750_RDAC 0x0b |
335 |
#define WM8750_BASS 0x0c |
336 |
#define WM8750_TREBLE 0x0d |
337 |
#define WM8750_RESET 0x0f |
338 |
#define WM8750_3D 0x10 |
339 |
#define WM8750_ALC1 0x11 |
340 |
#define WM8750_ALC2 0x12 |
341 |
#define WM8750_ALC3 0x13 |
342 |
#define WM8750_NGATE 0x14 |
343 |
#define WM8750_LADC 0x15 |
344 |
#define WM8750_RADC 0x16 |
345 |
#define WM8750_ADCTL1 0x17 |
346 |
#define WM8750_ADCTL2 0x18 |
347 |
#define WM8750_PWR1 0x19 |
348 |
#define WM8750_PWR2 0x1a |
349 |
#define WM8750_ADCTL3 0x1b |
350 |
#define WM8750_ADCIN 0x1f |
351 |
#define WM8750_LADCIN 0x20 |
352 |
#define WM8750_RADCIN 0x21 |
353 |
#define WM8750_LOUTM1 0x22 |
354 |
#define WM8750_LOUTM2 0x23 |
355 |
#define WM8750_ROUTM1 0x24 |
356 |
#define WM8750_ROUTM2 0x25 |
357 |
#define WM8750_MOUTM1 0x26 |
358 |
#define WM8750_MOUTM2 0x27 |
359 |
#define WM8750_LOUT2V 0x28 |
360 |
#define WM8750_ROUT2V 0x29 |
361 |
#define WM8750_MOUTV 0x2a |
362 |
|
363 |
static int wm8750_tx(i2c_slave *i2c, uint8_t data) |
364 |
{ |
365 |
WM8750State *s = (WM8750State *) i2c; |
366 |
uint8_t cmd; |
367 |
uint16_t value; |
368 |
|
369 |
if (s->i2c_len >= 2) { |
370 |
printf("%s: long message (%i bytes)\n", __FUNCTION__, s->i2c_len);
|
371 |
#ifdef VERBOSE
|
372 |
return 1; |
373 |
#endif
|
374 |
} |
375 |
s->i2c_data[s->i2c_len ++] = data; |
376 |
if (s->i2c_len != 2) |
377 |
return 0; |
378 |
|
379 |
cmd = s->i2c_data[0] >> 1; |
380 |
value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff; |
381 |
|
382 |
switch (cmd) {
|
383 |
case WM8750_LADCIN: /* ADC Signal Path Control (Left) */ |
384 |
s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */ |
385 |
if (s->diff[0]) |
386 |
s->in[0] = &s->adc_voice[0 + s->ds * 1]; |
387 |
else
|
388 |
s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; |
389 |
break;
|
390 |
|
391 |
case WM8750_RADCIN: /* ADC Signal Path Control (Right) */ |
392 |
s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */ |
393 |
if (s->diff[1]) |
394 |
s->in[1] = &s->adc_voice[0 + s->ds * 1]; |
395 |
else
|
396 |
s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; |
397 |
break;
|
398 |
|
399 |
case WM8750_ADCIN: /* ADC Input Mode */ |
400 |
s->ds = (value >> 8) & 1; /* DS */ |
401 |
if (s->diff[0]) |
402 |
s->in[0] = &s->adc_voice[0 + s->ds * 1]; |
403 |
if (s->diff[1]) |
404 |
s->in[1] = &s->adc_voice[0 + s->ds * 1]; |
405 |
s->monomix[0] = (value >> 6) & 3; /* MONOMIX */ |
406 |
break;
|
407 |
|
408 |
case WM8750_ADCTL1: /* Additional Control (1) */ |
409 |
s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */ |
410 |
break;
|
411 |
|
412 |
case WM8750_PWR1: /* Power Management (1) */ |
413 |
s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */ |
414 |
wm8750_set_format(s); |
415 |
break;
|
416 |
|
417 |
case WM8750_LINVOL: /* Left Channel PGA */ |
418 |
s->invol[0] = value & 0x3f; /* LINVOL */ |
419 |
s->inmute[0] = (value >> 7) & 1; /* LINMUTE */ |
420 |
wm8750_vol_update(s); |
421 |
break;
|
422 |
|
423 |
case WM8750_RINVOL: /* Right Channel PGA */ |
424 |
s->invol[1] = value & 0x3f; /* RINVOL */ |
425 |
s->inmute[1] = (value >> 7) & 1; /* RINMUTE */ |
426 |
wm8750_vol_update(s); |
427 |
break;
|
428 |
|
429 |
case WM8750_ADCDAC: /* ADC and DAC Control */ |
430 |
s->pol = (value >> 5) & 3; /* ADCPOL */ |
431 |
s->mute = (value >> 3) & 1; /* DACMU */ |
432 |
wm8750_vol_update(s); |
433 |
break;
|
434 |
|
435 |
case WM8750_ADCTL3: /* Additional Control (3) */ |
436 |
break;
|
437 |
|
438 |
case WM8750_LADC: /* Left ADC Digital Volume */ |
439 |
s->invol[2] = value & 0xff; /* LADCVOL */ |
440 |
wm8750_vol_update(s); |
441 |
break;
|
442 |
|
443 |
case WM8750_RADC: /* Right ADC Digital Volume */ |
444 |
s->invol[3] = value & 0xff; /* RADCVOL */ |
445 |
wm8750_vol_update(s); |
446 |
break;
|
447 |
|
448 |
case WM8750_ALC1: /* ALC Control (1) */ |
449 |
s->alc = (value >> 7) & 3; /* ALCSEL */ |
450 |
break;
|
451 |
|
452 |
case WM8750_NGATE: /* Noise Gate Control */ |
453 |
case WM8750_3D: /* 3D enhance */ |
454 |
break;
|
455 |
|
456 |
case WM8750_LDAC: /* Left Channel Digital Volume */ |
457 |
s->outvol[0] = value & 0xff; /* LDACVOL */ |
458 |
wm8750_vol_update(s); |
459 |
break;
|
460 |
|
461 |
case WM8750_RDAC: /* Right Channel Digital Volume */ |
462 |
s->outvol[1] = value & 0xff; /* RDACVOL */ |
463 |
wm8750_vol_update(s); |
464 |
break;
|
465 |
|
466 |
case WM8750_BASS: /* Bass Control */ |
467 |
break;
|
468 |
|
469 |
case WM8750_LOUTM1: /* Left Mixer Control (1) */ |
470 |
s->path[0] = (value >> 8) & 1; /* LD2LO */ |
471 |
/* TODO: mute/unmute respective paths */
|
472 |
wm8750_vol_update(s); |
473 |
break;
|
474 |
|
475 |
case WM8750_LOUTM2: /* Left Mixer Control (2) */ |
476 |
s->path[1] = (value >> 8) & 1; /* RD2LO */ |
477 |
/* TODO: mute/unmute respective paths */
|
478 |
wm8750_vol_update(s); |
479 |
break;
|
480 |
|
481 |
case WM8750_ROUTM1: /* Right Mixer Control (1) */ |
482 |
s->path[2] = (value >> 8) & 1; /* LD2RO */ |
483 |
/* TODO: mute/unmute respective paths */
|
484 |
wm8750_vol_update(s); |
485 |
break;
|
486 |
|
487 |
case WM8750_ROUTM2: /* Right Mixer Control (2) */ |
488 |
s->path[3] = (value >> 8) & 1; /* RD2RO */ |
489 |
/* TODO: mute/unmute respective paths */
|
490 |
wm8750_vol_update(s); |
491 |
break;
|
492 |
|
493 |
case WM8750_MOUTM1: /* Mono Mixer Control (1) */ |
494 |
s->mpath[0] = (value >> 8) & 1; /* LD2MO */ |
495 |
/* TODO: mute/unmute respective paths */
|
496 |
wm8750_vol_update(s); |
497 |
break;
|
498 |
|
499 |
case WM8750_MOUTM2: /* Mono Mixer Control (2) */ |
500 |
s->mpath[1] = (value >> 8) & 1; /* RD2MO */ |
501 |
/* TODO: mute/unmute respective paths */
|
502 |
wm8750_vol_update(s); |
503 |
break;
|
504 |
|
505 |
case WM8750_LOUT1V: /* LOUT1 Volume */ |
506 |
s->outvol[2] = value & 0x7f; /* LOUT1VOL */ |
507 |
wm8750_vol_update(s); |
508 |
break;
|
509 |
|
510 |
case WM8750_LOUT2V: /* LOUT2 Volume */ |
511 |
s->outvol[4] = value & 0x7f; /* LOUT2VOL */ |
512 |
wm8750_vol_update(s); |
513 |
break;
|
514 |
|
515 |
case WM8750_ROUT1V: /* ROUT1 Volume */ |
516 |
s->outvol[3] = value & 0x7f; /* ROUT1VOL */ |
517 |
wm8750_vol_update(s); |
518 |
break;
|
519 |
|
520 |
case WM8750_ROUT2V: /* ROUT2 Volume */ |
521 |
s->outvol[5] = value & 0x7f; /* ROUT2VOL */ |
522 |
wm8750_vol_update(s); |
523 |
break;
|
524 |
|
525 |
case WM8750_MOUTV: /* MONOOUT Volume */ |
526 |
s->outvol[6] = value & 0x7f; /* MONOOUTVOL */ |
527 |
wm8750_vol_update(s); |
528 |
break;
|
529 |
|
530 |
case WM8750_ADCTL2: /* Additional Control (2) */ |
531 |
break;
|
532 |
|
533 |
case WM8750_PWR2: /* Power Management (2) */ |
534 |
s->power = value & 0x7e;
|
535 |
/* TODO: mute/unmute respective paths */
|
536 |
wm8750_vol_update(s); |
537 |
break;
|
538 |
|
539 |
case WM8750_IFACE: /* Digital Audio Interface Format */ |
540 |
s->format = value; |
541 |
s->master = (value >> 6) & 1; /* MS */ |
542 |
wm8750_clk_update(s, s->master); |
543 |
break;
|
544 |
|
545 |
case WM8750_SRATE: /* Clocking and Sample Rate Control */ |
546 |
s->rate = &wm_rate_table[(value >> 1) & 0x1f]; |
547 |
wm8750_clk_update(s, 0);
|
548 |
break;
|
549 |
|
550 |
case WM8750_RESET: /* Reset */ |
551 |
wm8750_reset(&s->i2c); |
552 |
break;
|
553 |
|
554 |
#ifdef VERBOSE
|
555 |
default:
|
556 |
printf("%s: unknown register %02x\n", __FUNCTION__, cmd);
|
557 |
#endif
|
558 |
} |
559 |
|
560 |
return 0; |
561 |
} |
562 |
|
563 |
static int wm8750_rx(i2c_slave *i2c) |
564 |
{ |
565 |
return 0x00; |
566 |
} |
567 |
|
568 |
static void wm8750_pre_save(void *opaque) |
569 |
{ |
570 |
WM8750State *s = opaque; |
571 |
|
572 |
s->rate_vmstate = (s->rate - wm_rate_table) / sizeof(*s->rate);
|
573 |
} |
574 |
|
575 |
static int wm8750_post_load(void *opaque, int version_id) |
576 |
{ |
577 |
WM8750State *s = opaque; |
578 |
|
579 |
s->rate = &wm_rate_table[s->rate_vmstate & 0x1f];
|
580 |
return 0; |
581 |
} |
582 |
|
583 |
static const VMStateDescription vmstate_wm8750 = { |
584 |
.name = CODEC, |
585 |
.version_id = 0,
|
586 |
.minimum_version_id = 0,
|
587 |
.minimum_version_id_old = 0,
|
588 |
.pre_save = wm8750_pre_save, |
589 |
.post_load = wm8750_post_load, |
590 |
.fields = (VMStateField []) { |
591 |
VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2),
|
592 |
VMSTATE_INT32(i2c_len, WM8750State), |
593 |
VMSTATE_INT32(enable, WM8750State), |
594 |
VMSTATE_INT32(idx_in, WM8750State), |
595 |
VMSTATE_INT32(req_in, WM8750State), |
596 |
VMSTATE_INT32(idx_out, WM8750State), |
597 |
VMSTATE_INT32(req_out, WM8750State), |
598 |
VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7),
|
599 |
VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2),
|
600 |
VMSTATE_UINT8_ARRAY(invol, WM8750State, 4),
|
601 |
VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2),
|
602 |
VMSTATE_UINT8_ARRAY(diff, WM8750State, 2),
|
603 |
VMSTATE_UINT8(pol, WM8750State), |
604 |
VMSTATE_UINT8(ds, WM8750State), |
605 |
VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2),
|
606 |
VMSTATE_UINT8(alc, WM8750State), |
607 |
VMSTATE_UINT8(mute, WM8750State), |
608 |
VMSTATE_UINT8_ARRAY(path, WM8750State, 4),
|
609 |
VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2),
|
610 |
VMSTATE_UINT8(format, WM8750State), |
611 |
VMSTATE_UINT8(power, WM8750State), |
612 |
VMSTATE_UINT8(rate_vmstate, WM8750State), |
613 |
VMSTATE_I2C_SLAVE(i2c, WM8750State), |
614 |
VMSTATE_END_OF_LIST() |
615 |
} |
616 |
}; |
617 |
|
618 |
static int wm8750_init(i2c_slave *i2c) |
619 |
{ |
620 |
WM8750State *s = FROM_I2C_SLAVE(WM8750State, i2c); |
621 |
|
622 |
AUD_register_card(CODEC, &s->card); |
623 |
wm8750_reset(&s->i2c); |
624 |
|
625 |
vmstate_register(-1, &vmstate_wm8750, s);
|
626 |
return 0; |
627 |
} |
628 |
|
629 |
#if 0
|
630 |
static void wm8750_fini(i2c_slave *i2c)
|
631 |
{
|
632 |
WM8750State *s = (WM8750State *) i2c;
|
633 |
wm8750_reset(&s->i2c);
|
634 |
AUD_remove_card(&s->card);
|
635 |
qemu_free(s);
|
636 |
}
|
637 |
#endif
|
638 |
|
639 |
void wm8750_data_req_set(DeviceState *dev,
|
640 |
void (*data_req)(void *, int, int), void *opaque) |
641 |
{ |
642 |
WM8750State *s = FROM_I2C_SLAVE(WM8750State, I2C_SLAVE_FROM_QDEV(dev)); |
643 |
s->data_req = data_req; |
644 |
s->opaque = opaque; |
645 |
} |
646 |
|
647 |
void wm8750_dac_dat(void *opaque, uint32_t sample) |
648 |
{ |
649 |
WM8750State *s = (WM8750State *) opaque; |
650 |
|
651 |
*(uint32_t *) &s->data_out[s->idx_out] = sample; |
652 |
s->req_out -= 4;
|
653 |
s->idx_out += 4;
|
654 |
if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0) |
655 |
wm8750_out_flush(s); |
656 |
} |
657 |
|
658 |
void *wm8750_dac_buffer(void *opaque, int samples) |
659 |
{ |
660 |
WM8750State *s = (WM8750State *) opaque; |
661 |
/* XXX: Should check if there are <i>samples</i> free samples available */
|
662 |
void *ret = s->data_out + s->idx_out;
|
663 |
|
664 |
s->idx_out += samples << 2;
|
665 |
s->req_out -= samples << 2;
|
666 |
return ret;
|
667 |
} |
668 |
|
669 |
void wm8750_dac_commit(void *opaque) |
670 |
{ |
671 |
WM8750State *s = (WM8750State *) opaque; |
672 |
|
673 |
wm8750_out_flush(s); |
674 |
} |
675 |
|
676 |
uint32_t wm8750_adc_dat(void *opaque)
|
677 |
{ |
678 |
WM8750State *s = (WM8750State *) opaque; |
679 |
uint32_t *data; |
680 |
|
681 |
if (s->idx_in >= sizeof(s->data_in)) |
682 |
wm8750_in_load(s); |
683 |
|
684 |
data = (uint32_t *) &s->data_in[s->idx_in]; |
685 |
s->req_in -= 4;
|
686 |
s->idx_in += 4;
|
687 |
return *data;
|
688 |
} |
689 |
|
690 |
void wm8750_set_bclk_in(void *opaque, int new_hz) |
691 |
{ |
692 |
WM8750State *s = (WM8750State *) opaque; |
693 |
|
694 |
s->ext_adc_hz = new_hz; |
695 |
s->ext_dac_hz = new_hz; |
696 |
wm8750_clk_update(s, 1);
|
697 |
} |
698 |
|
699 |
static I2CSlaveInfo wm8750_info = {
|
700 |
.qdev.name = "wm8750",
|
701 |
.qdev.size = sizeof(WM8750State),
|
702 |
.init = wm8750_init, |
703 |
.event = wm8750_event, |
704 |
.recv = wm8750_rx, |
705 |
.send = wm8750_tx |
706 |
}; |
707 |
|
708 |
static void wm8750_register_devices(void) |
709 |
{ |
710 |
i2c_register_slave(&wm8750_info); |
711 |
} |
712 |
|
713 |
device_init(wm8750_register_devices) |