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c8bf93f0 PU |
1 | /* |
2 | * ALSA SoC Texas Instruments TLV320DAC33 codec driver | |
3 | * | |
4 | * Author: Peter Ujfalusi <peter.ujfalusi@nokia.com> | |
5 | * | |
6 | * Copyright: (C) 2009 Nokia Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
20 | * 02110-1301 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/module.h> | |
25 | #include <linux/moduleparam.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/delay.h> | |
28 | #include <linux/pm.h> | |
29 | #include <linux/i2c.h> | |
30 | #include <linux/platform_device.h> | |
31 | #include <linux/interrupt.h> | |
32 | #include <linux/gpio.h> | |
3a7aaed7 | 33 | #include <linux/regulator/consumer.h> |
c8bf93f0 PU |
34 | #include <sound/core.h> |
35 | #include <sound/pcm.h> | |
36 | #include <sound/pcm_params.h> | |
37 | #include <sound/soc.h> | |
38 | #include <sound/soc-dapm.h> | |
39 | #include <sound/initval.h> | |
40 | #include <sound/tlv.h> | |
41 | ||
42 | #include <sound/tlv320dac33-plat.h> | |
43 | #include "tlv320dac33.h" | |
44 | ||
45 | #define DAC33_BUFFER_SIZE_BYTES 24576 /* bytes, 12288 16 bit words, | |
46 | * 6144 stereo */ | |
47 | #define DAC33_BUFFER_SIZE_SAMPLES 6144 | |
48 | ||
49 | #define NSAMPLE_MAX 5700 | |
50 | ||
51 | #define LATENCY_TIME_MS 20 | |
52 | ||
53 | static struct snd_soc_codec *tlv320dac33_codec; | |
54 | ||
55 | enum dac33_state { | |
56 | DAC33_IDLE = 0, | |
57 | DAC33_PREFILL, | |
58 | DAC33_PLAYBACK, | |
59 | DAC33_FLUSH, | |
60 | }; | |
61 | ||
7427b4b9 PU |
62 | enum dac33_fifo_modes { |
63 | DAC33_FIFO_BYPASS = 0, | |
64 | DAC33_FIFO_MODE1, | |
28e05d98 | 65 | DAC33_FIFO_MODE7, |
7427b4b9 PU |
66 | DAC33_FIFO_LAST_MODE, |
67 | }; | |
68 | ||
3a7aaed7 IK |
69 | #define DAC33_NUM_SUPPLIES 3 |
70 | static const char *dac33_supply_names[DAC33_NUM_SUPPLIES] = { | |
71 | "AVDD", | |
72 | "DVDD", | |
73 | "IOVDD", | |
74 | }; | |
75 | ||
c8bf93f0 PU |
76 | struct tlv320dac33_priv { |
77 | struct mutex mutex; | |
78 | struct workqueue_struct *dac33_wq; | |
79 | struct work_struct work; | |
80 | struct snd_soc_codec codec; | |
3a7aaed7 | 81 | struct regulator_bulk_data supplies[DAC33_NUM_SUPPLIES]; |
c8bf93f0 PU |
82 | int power_gpio; |
83 | int chip_power; | |
84 | int irq; | |
85 | unsigned int refclk; | |
86 | ||
87 | unsigned int alarm_threshold; /* set to be half of LATENCY_TIME_MS */ | |
88 | unsigned int nsample_min; /* nsample should not be lower than | |
89 | * this */ | |
90 | unsigned int nsample_max; /* nsample should not be higher than | |
91 | * this */ | |
7427b4b9 | 92 | enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */ |
c8bf93f0 PU |
93 | unsigned int nsample; /* burst read amount from host */ |
94 | ||
95 | enum dac33_state state; | |
96 | }; | |
97 | ||
98 | static const u8 dac33_reg[DAC33_CACHEREGNUM] = { | |
99 | 0x00, 0x00, 0x00, 0x00, /* 0x00 - 0x03 */ | |
100 | 0x00, 0x00, 0x00, 0x00, /* 0x04 - 0x07 */ | |
101 | 0x00, 0x00, 0x00, 0x00, /* 0x08 - 0x0b */ | |
102 | 0x00, 0x00, 0x00, 0x00, /* 0x0c - 0x0f */ | |
103 | 0x00, 0x00, 0x00, 0x00, /* 0x10 - 0x13 */ | |
104 | 0x00, 0x00, 0x00, 0x00, /* 0x14 - 0x17 */ | |
105 | 0x00, 0x00, 0x00, 0x00, /* 0x18 - 0x1b */ | |
106 | 0x00, 0x00, 0x00, 0x00, /* 0x1c - 0x1f */ | |
107 | 0x00, 0x00, 0x00, 0x00, /* 0x20 - 0x23 */ | |
108 | 0x00, 0x00, 0x00, 0x00, /* 0x24 - 0x27 */ | |
109 | 0x00, 0x00, 0x00, 0x00, /* 0x28 - 0x2b */ | |
110 | 0x00, 0x00, 0x00, 0x80, /* 0x2c - 0x2f */ | |
111 | 0x80, 0x00, 0x00, 0x00, /* 0x30 - 0x33 */ | |
112 | 0x00, 0x00, 0x00, 0x00, /* 0x34 - 0x37 */ | |
113 | 0x00, 0x00, /* 0x38 - 0x39 */ | |
114 | /* Registers 0x3a - 0x3f are reserved */ | |
115 | 0x00, 0x00, /* 0x3a - 0x3b */ | |
116 | 0x00, 0x00, 0x00, 0x00, /* 0x3c - 0x3f */ | |
117 | ||
118 | 0x00, 0x00, 0x00, 0x00, /* 0x40 - 0x43 */ | |
119 | 0x00, 0x80, /* 0x44 - 0x45 */ | |
120 | /* Registers 0x46 - 0x47 are reserved */ | |
121 | 0x80, 0x80, /* 0x46 - 0x47 */ | |
122 | ||
123 | 0x80, 0x00, 0x00, /* 0x48 - 0x4a */ | |
124 | /* Registers 0x4b - 0x7c are reserved */ | |
125 | 0x00, /* 0x4b */ | |
126 | 0x00, 0x00, 0x00, 0x00, /* 0x4c - 0x4f */ | |
127 | 0x00, 0x00, 0x00, 0x00, /* 0x50 - 0x53 */ | |
128 | 0x00, 0x00, 0x00, 0x00, /* 0x54 - 0x57 */ | |
129 | 0x00, 0x00, 0x00, 0x00, /* 0x58 - 0x5b */ | |
130 | 0x00, 0x00, 0x00, 0x00, /* 0x5c - 0x5f */ | |
131 | 0x00, 0x00, 0x00, 0x00, /* 0x60 - 0x63 */ | |
132 | 0x00, 0x00, 0x00, 0x00, /* 0x64 - 0x67 */ | |
133 | 0x00, 0x00, 0x00, 0x00, /* 0x68 - 0x6b */ | |
134 | 0x00, 0x00, 0x00, 0x00, /* 0x6c - 0x6f */ | |
135 | 0x00, 0x00, 0x00, 0x00, /* 0x70 - 0x73 */ | |
136 | 0x00, 0x00, 0x00, 0x00, /* 0x74 - 0x77 */ | |
137 | 0x00, 0x00, 0x00, 0x00, /* 0x78 - 0x7b */ | |
138 | 0x00, /* 0x7c */ | |
139 | ||
140 | 0xda, 0x33, 0x03, /* 0x7d - 0x7f */ | |
141 | }; | |
142 | ||
143 | /* Register read and write */ | |
144 | static inline unsigned int dac33_read_reg_cache(struct snd_soc_codec *codec, | |
145 | unsigned reg) | |
146 | { | |
147 | u8 *cache = codec->reg_cache; | |
148 | if (reg >= DAC33_CACHEREGNUM) | |
149 | return 0; | |
150 | ||
151 | return cache[reg]; | |
152 | } | |
153 | ||
154 | static inline void dac33_write_reg_cache(struct snd_soc_codec *codec, | |
155 | u8 reg, u8 value) | |
156 | { | |
157 | u8 *cache = codec->reg_cache; | |
158 | if (reg >= DAC33_CACHEREGNUM) | |
159 | return; | |
160 | ||
161 | cache[reg] = value; | |
162 | } | |
163 | ||
164 | static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, | |
165 | u8 *value) | |
166 | { | |
167 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
168 | int val; | |
169 | ||
170 | *value = reg & 0xff; | |
171 | ||
172 | /* If powered off, return the cached value */ | |
173 | if (dac33->chip_power) { | |
174 | val = i2c_smbus_read_byte_data(codec->control_data, value[0]); | |
175 | if (val < 0) { | |
176 | dev_err(codec->dev, "Read failed (%d)\n", val); | |
177 | value[0] = dac33_read_reg_cache(codec, reg); | |
178 | } else { | |
179 | value[0] = val; | |
180 | dac33_write_reg_cache(codec, reg, val); | |
181 | } | |
182 | } else { | |
183 | value[0] = dac33_read_reg_cache(codec, reg); | |
184 | } | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | static int dac33_write(struct snd_soc_codec *codec, unsigned int reg, | |
190 | unsigned int value) | |
191 | { | |
192 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
193 | u8 data[2]; | |
194 | int ret = 0; | |
195 | ||
196 | /* | |
197 | * data is | |
198 | * D15..D8 dac33 register offset | |
199 | * D7...D0 register data | |
200 | */ | |
201 | data[0] = reg & 0xff; | |
202 | data[1] = value & 0xff; | |
203 | ||
204 | dac33_write_reg_cache(codec, data[0], data[1]); | |
205 | if (dac33->chip_power) { | |
206 | ret = codec->hw_write(codec->control_data, data, 2); | |
207 | if (ret != 2) | |
208 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
209 | else | |
210 | ret = 0; | |
211 | } | |
212 | ||
213 | return ret; | |
214 | } | |
215 | ||
216 | static int dac33_write_locked(struct snd_soc_codec *codec, unsigned int reg, | |
217 | unsigned int value) | |
218 | { | |
219 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
220 | int ret; | |
221 | ||
222 | mutex_lock(&dac33->mutex); | |
223 | ret = dac33_write(codec, reg, value); | |
224 | mutex_unlock(&dac33->mutex); | |
225 | ||
226 | return ret; | |
227 | } | |
228 | ||
229 | #define DAC33_I2C_ADDR_AUTOINC 0x80 | |
230 | static int dac33_write16(struct snd_soc_codec *codec, unsigned int reg, | |
231 | unsigned int value) | |
232 | { | |
233 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
234 | u8 data[3]; | |
235 | int ret = 0; | |
236 | ||
237 | /* | |
238 | * data is | |
239 | * D23..D16 dac33 register offset | |
240 | * D15..D8 register data MSB | |
241 | * D7...D0 register data LSB | |
242 | */ | |
243 | data[0] = reg & 0xff; | |
244 | data[1] = (value >> 8) & 0xff; | |
245 | data[2] = value & 0xff; | |
246 | ||
247 | dac33_write_reg_cache(codec, data[0], data[1]); | |
248 | dac33_write_reg_cache(codec, data[0] + 1, data[2]); | |
249 | ||
250 | if (dac33->chip_power) { | |
251 | /* We need to set autoincrement mode for 16 bit writes */ | |
252 | data[0] |= DAC33_I2C_ADDR_AUTOINC; | |
253 | ret = codec->hw_write(codec->control_data, data, 3); | |
254 | if (ret != 3) | |
255 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
256 | else | |
257 | ret = 0; | |
258 | } | |
259 | ||
260 | return ret; | |
261 | } | |
262 | ||
263 | static void dac33_restore_regs(struct snd_soc_codec *codec) | |
264 | { | |
265 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
266 | u8 *cache = codec->reg_cache; | |
267 | u8 data[2]; | |
268 | int i, ret; | |
269 | ||
270 | if (!dac33->chip_power) | |
271 | return; | |
272 | ||
273 | for (i = DAC33_PWR_CTRL; i <= DAC33_INTP_CTRL_B; i++) { | |
274 | data[0] = i; | |
275 | data[1] = cache[i]; | |
276 | /* Skip the read only registers */ | |
277 | if ((i >= DAC33_INT_OSC_STATUS && | |
278 | i <= DAC33_INT_OSC_FREQ_RAT_READ_B) || | |
279 | (i >= DAC33_FIFO_WPTR_MSB && i <= DAC33_FIFO_IRQ_FLAG) || | |
280 | i == DAC33_DAC_STATUS_FLAGS || | |
281 | i == DAC33_SRC_EST_REF_CLK_RATIO_A || | |
282 | i == DAC33_SRC_EST_REF_CLK_RATIO_B) | |
283 | continue; | |
284 | ret = codec->hw_write(codec->control_data, data, 2); | |
285 | if (ret != 2) | |
286 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
287 | } | |
288 | for (i = DAC33_LDAC_PWR_CTRL; i <= DAC33_LINEL_TO_LLO_VOL; i++) { | |
289 | data[0] = i; | |
290 | data[1] = cache[i]; | |
291 | ret = codec->hw_write(codec->control_data, data, 2); | |
292 | if (ret != 2) | |
293 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
294 | } | |
295 | for (i = DAC33_LINER_TO_RLO_VOL; i <= DAC33_OSC_TRIM; i++) { | |
296 | data[0] = i; | |
297 | data[1] = cache[i]; | |
298 | ret = codec->hw_write(codec->control_data, data, 2); | |
299 | if (ret != 2) | |
300 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
301 | } | |
302 | } | |
303 | ||
304 | static inline void dac33_soft_power(struct snd_soc_codec *codec, int power) | |
305 | { | |
306 | u8 reg; | |
307 | ||
308 | reg = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
309 | if (power) | |
310 | reg |= DAC33_PDNALLB; | |
311 | else | |
312 | reg &= ~DAC33_PDNALLB; | |
313 | dac33_write(codec, DAC33_PWR_CTRL, reg); | |
314 | } | |
315 | ||
3a7aaed7 | 316 | static int dac33_hard_power(struct snd_soc_codec *codec, int power) |
c8bf93f0 PU |
317 | { |
318 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
3a7aaed7 | 319 | int ret; |
c8bf93f0 PU |
320 | |
321 | mutex_lock(&dac33->mutex); | |
322 | if (power) { | |
3a7aaed7 IK |
323 | ret = regulator_bulk_enable(ARRAY_SIZE(dac33->supplies), |
324 | dac33->supplies); | |
325 | if (ret != 0) { | |
326 | dev_err(codec->dev, | |
327 | "Failed to enable supplies: %d\n", ret); | |
328 | goto exit; | |
c8bf93f0 | 329 | } |
3a7aaed7 IK |
330 | |
331 | if (dac33->power_gpio >= 0) | |
332 | gpio_set_value(dac33->power_gpio, 1); | |
333 | ||
334 | dac33->chip_power = 1; | |
335 | ||
336 | /* Restore registers */ | |
337 | dac33_restore_regs(codec); | |
338 | ||
c8bf93f0 PU |
339 | dac33_soft_power(codec, 1); |
340 | } else { | |
341 | dac33_soft_power(codec, 0); | |
3a7aaed7 | 342 | if (dac33->power_gpio >= 0) |
c8bf93f0 | 343 | gpio_set_value(dac33->power_gpio, 0); |
3a7aaed7 IK |
344 | |
345 | ret = regulator_bulk_disable(ARRAY_SIZE(dac33->supplies), | |
346 | dac33->supplies); | |
347 | if (ret != 0) { | |
348 | dev_err(codec->dev, | |
349 | "Failed to disable supplies: %d\n", ret); | |
350 | goto exit; | |
c8bf93f0 | 351 | } |
3a7aaed7 IK |
352 | |
353 | dac33->chip_power = 0; | |
c8bf93f0 | 354 | } |
c8bf93f0 | 355 | |
3a7aaed7 IK |
356 | exit: |
357 | mutex_unlock(&dac33->mutex); | |
358 | return ret; | |
c8bf93f0 PU |
359 | } |
360 | ||
361 | static int dac33_get_nsample(struct snd_kcontrol *kcontrol, | |
362 | struct snd_ctl_elem_value *ucontrol) | |
363 | { | |
364 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
365 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
366 | ||
367 | ucontrol->value.integer.value[0] = dac33->nsample; | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
372 | static int dac33_set_nsample(struct snd_kcontrol *kcontrol, | |
373 | struct snd_ctl_elem_value *ucontrol) | |
374 | { | |
375 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
376 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
377 | int ret = 0; | |
378 | ||
379 | if (dac33->nsample == ucontrol->value.integer.value[0]) | |
380 | return 0; | |
381 | ||
382 | if (ucontrol->value.integer.value[0] < dac33->nsample_min || | |
383 | ucontrol->value.integer.value[0] > dac33->nsample_max) | |
384 | ret = -EINVAL; | |
385 | else | |
386 | dac33->nsample = ucontrol->value.integer.value[0]; | |
387 | ||
388 | return ret; | |
389 | } | |
390 | ||
7427b4b9 | 391 | static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol, |
c8bf93f0 PU |
392 | struct snd_ctl_elem_value *ucontrol) |
393 | { | |
394 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
395 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
396 | ||
7427b4b9 | 397 | ucontrol->value.integer.value[0] = dac33->fifo_mode; |
c8bf93f0 PU |
398 | |
399 | return 0; | |
400 | } | |
401 | ||
7427b4b9 | 402 | static int dac33_set_fifo_mode(struct snd_kcontrol *kcontrol, |
c8bf93f0 PU |
403 | struct snd_ctl_elem_value *ucontrol) |
404 | { | |
405 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
406 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
407 | int ret = 0; | |
408 | ||
7427b4b9 | 409 | if (dac33->fifo_mode == ucontrol->value.integer.value[0]) |
c8bf93f0 PU |
410 | return 0; |
411 | /* Do not allow changes while stream is running*/ | |
412 | if (codec->active) | |
413 | return -EPERM; | |
414 | ||
415 | if (ucontrol->value.integer.value[0] < 0 || | |
7427b4b9 | 416 | ucontrol->value.integer.value[0] >= DAC33_FIFO_LAST_MODE) |
c8bf93f0 PU |
417 | ret = -EINVAL; |
418 | else | |
7427b4b9 | 419 | dac33->fifo_mode = ucontrol->value.integer.value[0]; |
c8bf93f0 PU |
420 | |
421 | return ret; | |
422 | } | |
423 | ||
7427b4b9 PU |
424 | /* Codec operation modes */ |
425 | static const char *dac33_fifo_mode_texts[] = { | |
28e05d98 | 426 | "Bypass", "Mode 1", "Mode 7" |
7427b4b9 PU |
427 | }; |
428 | ||
429 | static const struct soc_enum dac33_fifo_mode_enum = | |
430 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(dac33_fifo_mode_texts), | |
431 | dac33_fifo_mode_texts); | |
432 | ||
c8bf93f0 PU |
433 | /* |
434 | * DACL/R digital volume control: | |
435 | * from 0 dB to -63.5 in 0.5 dB steps | |
436 | * Need to be inverted later on: | |
437 | * 0x00 == 0 dB | |
438 | * 0x7f == -63.5 dB | |
439 | */ | |
440 | static DECLARE_TLV_DB_SCALE(dac_digivol_tlv, -6350, 50, 0); | |
441 | ||
442 | static const struct snd_kcontrol_new dac33_snd_controls[] = { | |
443 | SOC_DOUBLE_R_TLV("DAC Digital Playback Volume", | |
444 | DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, | |
445 | 0, 0x7f, 1, dac_digivol_tlv), | |
446 | SOC_DOUBLE_R("DAC Digital Playback Switch", | |
447 | DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, 7, 1, 1), | |
448 | SOC_DOUBLE_R("Line to Line Out Volume", | |
449 | DAC33_LINEL_TO_LLO_VOL, DAC33_LINER_TO_RLO_VOL, 0, 127, 1), | |
450 | }; | |
451 | ||
452 | static const struct snd_kcontrol_new dac33_nsample_snd_controls[] = { | |
453 | SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0, | |
454 | dac33_get_nsample, dac33_set_nsample), | |
7427b4b9 PU |
455 | SOC_ENUM_EXT("FIFO Mode", dac33_fifo_mode_enum, |
456 | dac33_get_fifo_mode, dac33_set_fifo_mode), | |
c8bf93f0 PU |
457 | }; |
458 | ||
459 | /* Analog bypass */ | |
460 | static const struct snd_kcontrol_new dac33_dapm_abypassl_control = | |
461 | SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1); | |
462 | ||
463 | static const struct snd_kcontrol_new dac33_dapm_abypassr_control = | |
464 | SOC_DAPM_SINGLE("Switch", DAC33_LINER_TO_RLO_VOL, 7, 1, 1); | |
465 | ||
466 | static const struct snd_soc_dapm_widget dac33_dapm_widgets[] = { | |
467 | SND_SOC_DAPM_OUTPUT("LEFT_LO"), | |
468 | SND_SOC_DAPM_OUTPUT("RIGHT_LO"), | |
469 | ||
470 | SND_SOC_DAPM_INPUT("LINEL"), | |
471 | SND_SOC_DAPM_INPUT("LINER"), | |
472 | ||
473 | SND_SOC_DAPM_DAC("DACL", "Left Playback", DAC33_LDAC_PWR_CTRL, 2, 0), | |
474 | SND_SOC_DAPM_DAC("DACR", "Right Playback", DAC33_RDAC_PWR_CTRL, 2, 0), | |
475 | ||
476 | /* Analog bypass */ | |
477 | SND_SOC_DAPM_SWITCH("Analog Left Bypass", SND_SOC_NOPM, 0, 0, | |
478 | &dac33_dapm_abypassl_control), | |
479 | SND_SOC_DAPM_SWITCH("Analog Right Bypass", SND_SOC_NOPM, 0, 0, | |
480 | &dac33_dapm_abypassr_control), | |
481 | ||
482 | SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Left Amp Power", | |
483 | DAC33_OUT_AMP_PWR_CTRL, 6, 3, 3, 0), | |
484 | SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Right Amp Power", | |
485 | DAC33_OUT_AMP_PWR_CTRL, 4, 3, 3, 0), | |
486 | }; | |
487 | ||
488 | static const struct snd_soc_dapm_route audio_map[] = { | |
489 | /* Analog bypass */ | |
490 | {"Analog Left Bypass", "Switch", "LINEL"}, | |
491 | {"Analog Right Bypass", "Switch", "LINER"}, | |
492 | ||
493 | {"Output Left Amp Power", NULL, "DACL"}, | |
494 | {"Output Right Amp Power", NULL, "DACR"}, | |
495 | ||
496 | {"Output Left Amp Power", NULL, "Analog Left Bypass"}, | |
497 | {"Output Right Amp Power", NULL, "Analog Right Bypass"}, | |
498 | ||
499 | /* output */ | |
500 | {"LEFT_LO", NULL, "Output Left Amp Power"}, | |
501 | {"RIGHT_LO", NULL, "Output Right Amp Power"}, | |
502 | }; | |
503 | ||
504 | static int dac33_add_widgets(struct snd_soc_codec *codec) | |
505 | { | |
506 | snd_soc_dapm_new_controls(codec, dac33_dapm_widgets, | |
507 | ARRAY_SIZE(dac33_dapm_widgets)); | |
508 | ||
509 | /* set up audio path interconnects */ | |
510 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
c8bf93f0 PU |
511 | |
512 | return 0; | |
513 | } | |
514 | ||
515 | static int dac33_set_bias_level(struct snd_soc_codec *codec, | |
516 | enum snd_soc_bias_level level) | |
517 | { | |
3a7aaed7 IK |
518 | int ret; |
519 | ||
c8bf93f0 PU |
520 | switch (level) { |
521 | case SND_SOC_BIAS_ON: | |
522 | dac33_soft_power(codec, 1); | |
523 | break; | |
524 | case SND_SOC_BIAS_PREPARE: | |
525 | break; | |
526 | case SND_SOC_BIAS_STANDBY: | |
3a7aaed7 IK |
527 | if (codec->bias_level == SND_SOC_BIAS_OFF) { |
528 | ret = dac33_hard_power(codec, 1); | |
529 | if (ret != 0) | |
530 | return ret; | |
531 | } | |
532 | ||
c8bf93f0 PU |
533 | dac33_soft_power(codec, 0); |
534 | break; | |
535 | case SND_SOC_BIAS_OFF: | |
3a7aaed7 IK |
536 | ret = dac33_hard_power(codec, 0); |
537 | if (ret != 0) | |
538 | return ret; | |
539 | ||
c8bf93f0 PU |
540 | break; |
541 | } | |
542 | codec->bias_level = level; | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
d4f102d4 PU |
547 | static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33) |
548 | { | |
549 | struct snd_soc_codec *codec; | |
550 | ||
551 | codec = &dac33->codec; | |
552 | ||
553 | switch (dac33->fifo_mode) { | |
554 | case DAC33_FIFO_MODE1: | |
555 | dac33_write16(codec, DAC33_NSAMPLE_MSB, | |
556 | DAC33_THRREG(dac33->nsample)); | |
557 | dac33_write16(codec, DAC33_PREFILL_MSB, | |
558 | DAC33_THRREG(dac33->alarm_threshold)); | |
559 | break; | |
28e05d98 PU |
560 | case DAC33_FIFO_MODE7: |
561 | dac33_write16(codec, DAC33_PREFILL_MSB, | |
a5b5a064 | 562 | DAC33_THRREG(10)); |
28e05d98 | 563 | break; |
d4f102d4 PU |
564 | default: |
565 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
566 | dac33->fifo_mode); | |
567 | break; | |
568 | } | |
569 | } | |
570 | ||
571 | static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33) | |
572 | { | |
573 | struct snd_soc_codec *codec; | |
574 | ||
575 | codec = &dac33->codec; | |
576 | ||
577 | switch (dac33->fifo_mode) { | |
578 | case DAC33_FIFO_MODE1: | |
579 | dac33_write16(codec, DAC33_NSAMPLE_MSB, | |
580 | DAC33_THRREG(dac33->nsample)); | |
581 | break; | |
28e05d98 PU |
582 | case DAC33_FIFO_MODE7: |
583 | /* At the moment we are not using interrupts in mode7 */ | |
584 | break; | |
d4f102d4 PU |
585 | default: |
586 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
587 | dac33->fifo_mode); | |
588 | break; | |
589 | } | |
590 | } | |
591 | ||
c8bf93f0 PU |
592 | static void dac33_work(struct work_struct *work) |
593 | { | |
594 | struct snd_soc_codec *codec; | |
595 | struct tlv320dac33_priv *dac33; | |
596 | u8 reg; | |
597 | ||
598 | dac33 = container_of(work, struct tlv320dac33_priv, work); | |
599 | codec = &dac33->codec; | |
600 | ||
601 | mutex_lock(&dac33->mutex); | |
602 | switch (dac33->state) { | |
603 | case DAC33_PREFILL: | |
604 | dac33->state = DAC33_PLAYBACK; | |
d4f102d4 | 605 | dac33_prefill_handler(dac33); |
c8bf93f0 PU |
606 | break; |
607 | case DAC33_PLAYBACK: | |
d4f102d4 | 608 | dac33_playback_handler(dac33); |
c8bf93f0 PU |
609 | break; |
610 | case DAC33_IDLE: | |
611 | break; | |
612 | case DAC33_FLUSH: | |
613 | dac33->state = DAC33_IDLE; | |
614 | /* Mask all interrupts from dac33 */ | |
615 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, 0); | |
616 | ||
617 | /* flush fifo */ | |
618 | reg = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); | |
619 | reg |= DAC33_FIFOFLUSH; | |
620 | dac33_write(codec, DAC33_FIFO_CTRL_A, reg); | |
621 | break; | |
622 | } | |
623 | mutex_unlock(&dac33->mutex); | |
624 | } | |
625 | ||
626 | static irqreturn_t dac33_interrupt_handler(int irq, void *dev) | |
627 | { | |
628 | struct snd_soc_codec *codec = dev; | |
629 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
630 | ||
631 | queue_work(dac33->dac33_wq, &dac33->work); | |
632 | ||
633 | return IRQ_HANDLED; | |
634 | } | |
635 | ||
636 | static void dac33_shutdown(struct snd_pcm_substream *substream, | |
637 | struct snd_soc_dai *dai) | |
638 | { | |
639 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
640 | struct snd_soc_device *socdev = rtd->socdev; | |
641 | struct snd_soc_codec *codec = socdev->card->codec; | |
642 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
643 | unsigned int pwr_ctrl; | |
644 | ||
645 | /* Stop pending workqueue */ | |
7427b4b9 | 646 | if (dac33->fifo_mode) |
c8bf93f0 PU |
647 | cancel_work_sync(&dac33->work); |
648 | ||
649 | mutex_lock(&dac33->mutex); | |
650 | pwr_ctrl = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
651 | pwr_ctrl &= ~(DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB); | |
652 | dac33_write(codec, DAC33_PWR_CTRL, pwr_ctrl); | |
653 | mutex_unlock(&dac33->mutex); | |
654 | } | |
655 | ||
656 | static void dac33_oscwait(struct snd_soc_codec *codec) | |
657 | { | |
658 | int timeout = 20; | |
659 | u8 reg; | |
660 | ||
661 | do { | |
662 | msleep(1); | |
663 | dac33_read(codec, DAC33_INT_OSC_STATUS, ®); | |
664 | } while (((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) && timeout--); | |
665 | if ((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) | |
666 | dev_err(codec->dev, | |
667 | "internal oscillator calibration failed\n"); | |
668 | } | |
669 | ||
670 | static int dac33_hw_params(struct snd_pcm_substream *substream, | |
671 | struct snd_pcm_hw_params *params, | |
672 | struct snd_soc_dai *dai) | |
673 | { | |
674 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
675 | struct snd_soc_device *socdev = rtd->socdev; | |
676 | struct snd_soc_codec *codec = socdev->card->codec; | |
677 | ||
678 | /* Check parameters for validity */ | |
679 | switch (params_rate(params)) { | |
680 | case 44100: | |
681 | case 48000: | |
682 | break; | |
683 | default: | |
684 | dev_err(codec->dev, "unsupported rate %d\n", | |
685 | params_rate(params)); | |
686 | return -EINVAL; | |
687 | } | |
688 | ||
689 | switch (params_format(params)) { | |
690 | case SNDRV_PCM_FORMAT_S16_LE: | |
691 | break; | |
692 | default: | |
693 | dev_err(codec->dev, "unsupported format %d\n", | |
694 | params_format(params)); | |
695 | return -EINVAL; | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | #define CALC_OSCSET(rate, refclk) ( \ | |
702 | ((((rate * 10000) / refclk) * 4096) + 5000) / 10000) | |
703 | #define CALC_RATIOSET(rate, refclk) ( \ | |
704 | ((((refclk * 100000) / rate) * 16384) + 50000) / 100000) | |
705 | ||
706 | /* | |
707 | * tlv320dac33 is strict on the sequence of the register writes, if the register | |
708 | * writes happens in different order, than dac33 might end up in unknown state. | |
709 | * Use the known, working sequence of register writes to initialize the dac33. | |
710 | */ | |
711 | static int dac33_prepare_chip(struct snd_pcm_substream *substream) | |
712 | { | |
713 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
714 | struct snd_soc_device *socdev = rtd->socdev; | |
715 | struct snd_soc_codec *codec = socdev->card->codec; | |
716 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
717 | unsigned int oscset, ratioset, pwr_ctrl, reg_tmp; | |
aec242dc | 718 | u8 aictrl_a, aictrl_b, fifoctrl_a; |
c8bf93f0 PU |
719 | |
720 | switch (substream->runtime->rate) { | |
721 | case 44100: | |
722 | case 48000: | |
723 | oscset = CALC_OSCSET(substream->runtime->rate, dac33->refclk); | |
724 | ratioset = CALC_RATIOSET(substream->runtime->rate, | |
725 | dac33->refclk); | |
726 | break; | |
727 | default: | |
728 | dev_err(codec->dev, "unsupported rate %d\n", | |
729 | substream->runtime->rate); | |
730 | return -EINVAL; | |
731 | } | |
732 | ||
733 | ||
734 | aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); | |
735 | aictrl_a &= ~(DAC33_NCYCL_MASK | DAC33_WLEN_MASK); | |
736 | fifoctrl_a = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); | |
737 | fifoctrl_a &= ~DAC33_WIDTH; | |
738 | switch (substream->runtime->format) { | |
739 | case SNDRV_PCM_FORMAT_S16_LE: | |
740 | aictrl_a |= (DAC33_NCYCL_16 | DAC33_WLEN_16); | |
741 | fifoctrl_a |= DAC33_WIDTH; | |
742 | break; | |
743 | default: | |
744 | dev_err(codec->dev, "unsupported format %d\n", | |
745 | substream->runtime->format); | |
746 | return -EINVAL; | |
747 | } | |
748 | ||
749 | mutex_lock(&dac33->mutex); | |
750 | dac33_soft_power(codec, 1); | |
751 | ||
752 | reg_tmp = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); | |
753 | dac33_write(codec, DAC33_INT_OSC_CTRL, reg_tmp); | |
754 | ||
755 | /* Write registers 0x08 and 0x09 (MSB, LSB) */ | |
756 | dac33_write16(codec, DAC33_INT_OSC_FREQ_RAT_A, oscset); | |
757 | ||
758 | /* calib time: 128 is a nice number ;) */ | |
759 | dac33_write(codec, DAC33_CALIB_TIME, 128); | |
760 | ||
761 | /* adjustment treshold & step */ | |
762 | dac33_write(codec, DAC33_INT_OSC_CTRL_B, DAC33_ADJTHRSHLD(2) | | |
763 | DAC33_ADJSTEP(1)); | |
764 | ||
765 | /* div=4 / gain=1 / div */ | |
766 | dac33_write(codec, DAC33_INT_OSC_CTRL_C, DAC33_REFDIV(4)); | |
767 | ||
768 | pwr_ctrl = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
769 | pwr_ctrl |= DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB; | |
770 | dac33_write(codec, DAC33_PWR_CTRL, pwr_ctrl); | |
771 | ||
772 | dac33_oscwait(codec); | |
773 | ||
7427b4b9 | 774 | if (dac33->fifo_mode) { |
aec242dc | 775 | /* Generic for all FIFO modes */ |
c8bf93f0 PU |
776 | /* 50-51 : ASRC Control registers */ |
777 | dac33_write(codec, DAC33_ASRC_CTRL_A, (1 << 4)); /* div=2 */ | |
778 | dac33_write(codec, DAC33_ASRC_CTRL_B, 1); /* ??? */ | |
779 | ||
780 | /* Write registers 0x34 and 0x35 (MSB, LSB) */ | |
781 | dac33_write16(codec, DAC33_SRC_REF_CLK_RATIO_A, ratioset); | |
782 | ||
783 | /* Set interrupts to high active */ | |
784 | dac33_write(codec, DAC33_INTP_CTRL_A, DAC33_INTPM_AHIGH); | |
c8bf93f0 | 785 | } else { |
aec242dc | 786 | /* FIFO bypass mode */ |
c8bf93f0 PU |
787 | /* 50-51 : ASRC Control registers */ |
788 | dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCBYP); | |
789 | dac33_write(codec, DAC33_ASRC_CTRL_B, 0); /* ??? */ | |
790 | } | |
791 | ||
aec242dc PU |
792 | /* Interrupt behaviour configuration */ |
793 | switch (dac33->fifo_mode) { | |
794 | case DAC33_FIFO_MODE1: | |
795 | dac33_write(codec, DAC33_FIFO_IRQ_MODE_B, | |
796 | DAC33_ATM(DAC33_FIFO_IRQ_MODE_LEVEL)); | |
797 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MAT); | |
798 | break; | |
28e05d98 PU |
799 | case DAC33_FIFO_MODE7: |
800 | /* Disable all interrupts */ | |
801 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, 0); | |
802 | break; | |
aec242dc PU |
803 | default: |
804 | /* in FIFO bypass mode, the interrupts are not used */ | |
805 | break; | |
806 | } | |
807 | ||
808 | aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
809 | ||
810 | switch (dac33->fifo_mode) { | |
811 | case DAC33_FIFO_MODE1: | |
812 | /* | |
813 | * For mode1: | |
814 | * Disable the FIFO bypass (Enable the use of FIFO) | |
815 | * Select nSample mode | |
816 | * BCLK is only running when data is needed by DAC33 | |
817 | */ | |
c8bf93f0 | 818 | fifoctrl_a &= ~DAC33_FBYPAS; |
aec242dc PU |
819 | fifoctrl_a &= ~DAC33_FAUTO; |
820 | aictrl_b &= ~DAC33_BCLKON; | |
821 | break; | |
28e05d98 PU |
822 | case DAC33_FIFO_MODE7: |
823 | /* | |
824 | * For mode1: | |
825 | * Disable the FIFO bypass (Enable the use of FIFO) | |
826 | * Select Threshold mode | |
827 | * BCLK is only running when data is needed by DAC33 | |
828 | */ | |
829 | fifoctrl_a &= ~DAC33_FBYPAS; | |
830 | fifoctrl_a |= DAC33_FAUTO; | |
831 | aictrl_b &= ~DAC33_BCLKON; | |
832 | break; | |
aec242dc PU |
833 | default: |
834 | /* | |
835 | * For FIFO bypass mode: | |
836 | * Enable the FIFO bypass (Disable the FIFO use) | |
837 | * Set the BCLK as continous | |
838 | */ | |
c8bf93f0 | 839 | fifoctrl_a |= DAC33_FBYPAS; |
aec242dc PU |
840 | aictrl_b |= DAC33_BCLKON; |
841 | break; | |
842 | } | |
c8bf93f0 | 843 | |
aec242dc | 844 | dac33_write(codec, DAC33_FIFO_CTRL_A, fifoctrl_a); |
c8bf93f0 | 845 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); |
aec242dc | 846 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); |
c8bf93f0 | 847 | |
6cd6cede PU |
848 | /* BCLK divide ratio */ |
849 | if (dac33->fifo_mode) | |
c8bf93f0 | 850 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 3); |
6cd6cede PU |
851 | else |
852 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 32); | |
c8bf93f0 | 853 | |
6cd6cede PU |
854 | switch (dac33->fifo_mode) { |
855 | case DAC33_FIFO_MODE1: | |
c8bf93f0 PU |
856 | dac33_write16(codec, DAC33_ATHR_MSB, |
857 | DAC33_THRREG(dac33->alarm_threshold)); | |
aec242dc | 858 | break; |
28e05d98 PU |
859 | case DAC33_FIFO_MODE7: |
860 | /* | |
861 | * Configure the threshold levels, and leave 10 sample space | |
862 | * at the bottom, and also at the top of the FIFO | |
863 | */ | |
864 | dac33_write16(codec, DAC33_UTHR_MSB, | |
865 | DAC33_THRREG(DAC33_BUFFER_SIZE_SAMPLES - 10)); | |
866 | dac33_write16(codec, DAC33_LTHR_MSB, | |
867 | DAC33_THRREG(10)); | |
868 | break; | |
aec242dc | 869 | default: |
aec242dc | 870 | break; |
c8bf93f0 PU |
871 | } |
872 | ||
873 | mutex_unlock(&dac33->mutex); | |
874 | ||
875 | return 0; | |
876 | } | |
877 | ||
878 | static void dac33_calculate_times(struct snd_pcm_substream *substream) | |
879 | { | |
880 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
881 | struct snd_soc_device *socdev = rtd->socdev; | |
882 | struct snd_soc_codec *codec = socdev->card->codec; | |
883 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
884 | unsigned int nsample_limit; | |
885 | ||
886 | /* Number of samples (16bit, stereo) in one period */ | |
887 | dac33->nsample_min = snd_pcm_lib_period_bytes(substream) / 4; | |
888 | ||
889 | /* Number of samples (16bit, stereo) in ALSA buffer */ | |
890 | dac33->nsample_max = snd_pcm_lib_buffer_bytes(substream) / 4; | |
891 | /* Subtract one period from the total */ | |
892 | dac33->nsample_max -= dac33->nsample_min; | |
893 | ||
894 | /* Number of samples for LATENCY_TIME_MS / 2 */ | |
895 | dac33->alarm_threshold = substream->runtime->rate / | |
896 | (1000 / (LATENCY_TIME_MS / 2)); | |
897 | ||
898 | /* Find and fix up the lowest nsmaple limit */ | |
899 | nsample_limit = substream->runtime->rate / (1000 / LATENCY_TIME_MS); | |
900 | ||
901 | if (dac33->nsample_min < nsample_limit) | |
902 | dac33->nsample_min = nsample_limit; | |
903 | ||
904 | if (dac33->nsample < dac33->nsample_min) | |
905 | dac33->nsample = dac33->nsample_min; | |
906 | ||
907 | /* | |
908 | * Find and fix up the highest nsmaple limit | |
909 | * In order to not overflow the DAC33 buffer substract the | |
910 | * alarm_threshold value from the size of the DAC33 buffer | |
911 | */ | |
912 | nsample_limit = DAC33_BUFFER_SIZE_SAMPLES - dac33->alarm_threshold; | |
913 | ||
914 | if (dac33->nsample_max > nsample_limit) | |
915 | dac33->nsample_max = nsample_limit; | |
916 | ||
917 | if (dac33->nsample > dac33->nsample_max) | |
918 | dac33->nsample = dac33->nsample_max; | |
919 | } | |
920 | ||
921 | static int dac33_pcm_prepare(struct snd_pcm_substream *substream, | |
922 | struct snd_soc_dai *dai) | |
923 | { | |
924 | dac33_calculate_times(substream); | |
925 | dac33_prepare_chip(substream); | |
926 | ||
927 | return 0; | |
928 | } | |
929 | ||
930 | static int dac33_pcm_trigger(struct snd_pcm_substream *substream, int cmd, | |
931 | struct snd_soc_dai *dai) | |
932 | { | |
933 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
934 | struct snd_soc_device *socdev = rtd->socdev; | |
935 | struct snd_soc_codec *codec = socdev->card->codec; | |
936 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
937 | int ret = 0; | |
938 | ||
939 | switch (cmd) { | |
940 | case SNDRV_PCM_TRIGGER_START: | |
941 | case SNDRV_PCM_TRIGGER_RESUME: | |
942 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
7427b4b9 | 943 | if (dac33->fifo_mode) { |
c8bf93f0 PU |
944 | dac33->state = DAC33_PREFILL; |
945 | queue_work(dac33->dac33_wq, &dac33->work); | |
946 | } | |
947 | break; | |
948 | case SNDRV_PCM_TRIGGER_STOP: | |
949 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
950 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
7427b4b9 | 951 | if (dac33->fifo_mode) { |
c8bf93f0 PU |
952 | dac33->state = DAC33_FLUSH; |
953 | queue_work(dac33->dac33_wq, &dac33->work); | |
954 | } | |
955 | break; | |
956 | default: | |
957 | ret = -EINVAL; | |
958 | } | |
959 | ||
960 | return ret; | |
961 | } | |
962 | ||
963 | static int dac33_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
964 | int clk_id, unsigned int freq, int dir) | |
965 | { | |
966 | struct snd_soc_codec *codec = codec_dai->codec; | |
967 | struct tlv320dac33_priv *dac33 = codec->private_data; | |
968 | u8 ioc_reg, asrcb_reg; | |
969 | ||
970 | ioc_reg = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); | |
971 | asrcb_reg = dac33_read_reg_cache(codec, DAC33_ASRC_CTRL_B); | |
972 | switch (clk_id) { | |
973 | case TLV320DAC33_MCLK: | |
974 | ioc_reg |= DAC33_REFSEL; | |
975 | asrcb_reg |= DAC33_SRCREFSEL; | |
976 | break; | |
977 | case TLV320DAC33_SLEEPCLK: | |
978 | ioc_reg &= ~DAC33_REFSEL; | |
979 | asrcb_reg &= ~DAC33_SRCREFSEL; | |
980 | break; | |
981 | default: | |
982 | dev_err(codec->dev, "Invalid clock ID (%d)\n", clk_id); | |
983 | break; | |
984 | } | |
985 | dac33->refclk = freq; | |
986 | ||
987 | dac33_write_reg_cache(codec, DAC33_INT_OSC_CTRL, ioc_reg); | |
988 | dac33_write_reg_cache(codec, DAC33_ASRC_CTRL_B, asrcb_reg); | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
993 | static int dac33_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
994 | unsigned int fmt) | |
995 | { | |
996 | struct snd_soc_codec *codec = codec_dai->codec; | |
adcb8bc0 | 997 | struct tlv320dac33_priv *dac33 = codec->private_data; |
c8bf93f0 PU |
998 | u8 aictrl_a, aictrl_b; |
999 | ||
1000 | aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); | |
1001 | aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
1002 | /* set master/slave audio interface */ | |
1003 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1004 | case SND_SOC_DAIFMT_CBM_CFM: | |
1005 | /* Codec Master */ | |
1006 | aictrl_a |= (DAC33_MSBCLK | DAC33_MSWCLK); | |
1007 | break; | |
1008 | case SND_SOC_DAIFMT_CBS_CFS: | |
1009 | /* Codec Slave */ | |
adcb8bc0 PU |
1010 | if (dac33->fifo_mode) { |
1011 | dev_err(codec->dev, "FIFO mode requires master mode\n"); | |
1012 | return -EINVAL; | |
1013 | } else | |
1014 | aictrl_a &= ~(DAC33_MSBCLK | DAC33_MSWCLK); | |
c8bf93f0 PU |
1015 | break; |
1016 | default: | |
1017 | return -EINVAL; | |
1018 | } | |
1019 | ||
1020 | aictrl_a &= ~DAC33_AFMT_MASK; | |
1021 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
1022 | case SND_SOC_DAIFMT_I2S: | |
1023 | aictrl_a |= DAC33_AFMT_I2S; | |
1024 | break; | |
1025 | case SND_SOC_DAIFMT_DSP_A: | |
1026 | aictrl_a |= DAC33_AFMT_DSP; | |
1027 | aictrl_b &= ~DAC33_DATA_DELAY_MASK; | |
1028 | aictrl_b |= DAC33_DATA_DELAY(1); /* 1 bit delay */ | |
1029 | break; | |
1030 | case SND_SOC_DAIFMT_DSP_B: | |
1031 | aictrl_a |= DAC33_AFMT_DSP; | |
1032 | aictrl_b &= ~DAC33_DATA_DELAY_MASK; /* No delay */ | |
1033 | break; | |
1034 | case SND_SOC_DAIFMT_RIGHT_J: | |
1035 | aictrl_a |= DAC33_AFMT_RIGHT_J; | |
1036 | break; | |
1037 | case SND_SOC_DAIFMT_LEFT_J: | |
1038 | aictrl_a |= DAC33_AFMT_LEFT_J; | |
1039 | break; | |
1040 | default: | |
1041 | dev_err(codec->dev, "Unsupported format (%u)\n", | |
1042 | fmt & SND_SOC_DAIFMT_FORMAT_MASK); | |
1043 | return -EINVAL; | |
1044 | } | |
1045 | ||
1046 | dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); | |
1047 | dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); | |
1048 | ||
1049 | return 0; | |
1050 | } | |
1051 | ||
1052 | static void dac33_init_chip(struct snd_soc_codec *codec) | |
1053 | { | |
1054 | /* 44-46: DAC Control Registers */ | |
1055 | /* A : DAC sample rate Fsref/1.5 */ | |
1056 | dac33_write(codec, DAC33_DAC_CTRL_A, DAC33_DACRATE(1)); | |
1057 | /* B : DAC src=normal, not muted */ | |
1058 | dac33_write(codec, DAC33_DAC_CTRL_B, DAC33_DACSRCR_RIGHT | | |
1059 | DAC33_DACSRCL_LEFT); | |
1060 | /* C : (defaults) */ | |
1061 | dac33_write(codec, DAC33_DAC_CTRL_C, 0x00); | |
1062 | ||
1063 | /* 64-65 : L&R DAC power control | |
1064 | Line In -> OUT 1V/V Gain, DAC -> OUT 4V/V Gain*/ | |
1065 | dac33_write(codec, DAC33_LDAC_PWR_CTRL, DAC33_LROUT_GAIN(2)); | |
1066 | dac33_write(codec, DAC33_RDAC_PWR_CTRL, DAC33_LROUT_GAIN(2)); | |
1067 | ||
1068 | /* 73 : volume soft stepping control, | |
1069 | clock source = internal osc (?) */ | |
1070 | dac33_write(codec, DAC33_ANA_VOL_SOFT_STEP_CTRL, DAC33_VOLCLKEN); | |
1071 | ||
1072 | /* 66 : LOP/LOM Modes */ | |
1073 | dac33_write(codec, DAC33_OUT_AMP_CM_CTRL, 0xff); | |
1074 | ||
1075 | /* 68 : LOM inverted from LOP */ | |
1076 | dac33_write(codec, DAC33_OUT_AMP_CTRL, (3<<2)); | |
1077 | ||
1078 | dac33_write(codec, DAC33_PWR_CTRL, DAC33_PDNALLB); | |
1079 | } | |
1080 | ||
1081 | static int dac33_soc_probe(struct platform_device *pdev) | |
1082 | { | |
1083 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1084 | struct snd_soc_codec *codec; | |
1085 | struct tlv320dac33_priv *dac33; | |
1086 | int ret = 0; | |
1087 | ||
1088 | BUG_ON(!tlv320dac33_codec); | |
1089 | ||
1090 | codec = tlv320dac33_codec; | |
1091 | socdev->card->codec = codec; | |
1092 | dac33 = codec->private_data; | |
1093 | ||
1094 | /* Power up the codec */ | |
1095 | dac33_hard_power(codec, 1); | |
1096 | /* Set default configuration */ | |
1097 | dac33_init_chip(codec); | |
1098 | ||
1099 | /* register pcms */ | |
1100 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
1101 | if (ret < 0) { | |
1102 | dev_err(codec->dev, "failed to create pcms\n"); | |
1103 | goto pcm_err; | |
1104 | } | |
1105 | ||
1106 | snd_soc_add_controls(codec, dac33_snd_controls, | |
1107 | ARRAY_SIZE(dac33_snd_controls)); | |
1108 | /* Only add the nSample controls, if we have valid IRQ number */ | |
1109 | if (dac33->irq >= 0) | |
1110 | snd_soc_add_controls(codec, dac33_nsample_snd_controls, | |
1111 | ARRAY_SIZE(dac33_nsample_snd_controls)); | |
1112 | ||
1113 | dac33_add_widgets(codec); | |
1114 | ||
1115 | /* power on device */ | |
1116 | dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
1117 | ||
3a7aaed7 IK |
1118 | /* Bias level configuration has enabled regulator an extra time */ |
1119 | regulator_bulk_disable(ARRAY_SIZE(dac33->supplies), dac33->supplies); | |
1120 | ||
c8bf93f0 | 1121 | return 0; |
fe3e78e0 | 1122 | |
c8bf93f0 PU |
1123 | pcm_err: |
1124 | dac33_hard_power(codec, 0); | |
1125 | return ret; | |
1126 | } | |
1127 | ||
1128 | static int dac33_soc_remove(struct platform_device *pdev) | |
1129 | { | |
1130 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1131 | struct snd_soc_codec *codec = socdev->card->codec; | |
1132 | ||
1133 | dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
1134 | ||
1135 | snd_soc_free_pcms(socdev); | |
1136 | snd_soc_dapm_free(socdev); | |
1137 | ||
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | static int dac33_soc_suspend(struct platform_device *pdev, pm_message_t state) | |
1142 | { | |
1143 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1144 | struct snd_soc_codec *codec = socdev->card->codec; | |
1145 | ||
1146 | dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | static int dac33_soc_resume(struct platform_device *pdev) | |
1152 | { | |
1153 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1154 | struct snd_soc_codec *codec = socdev->card->codec; | |
1155 | ||
1156 | dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
1157 | dac33_set_bias_level(codec, codec->suspend_bias_level); | |
1158 | ||
1159 | return 0; | |
1160 | } | |
1161 | ||
1162 | struct snd_soc_codec_device soc_codec_dev_tlv320dac33 = { | |
1163 | .probe = dac33_soc_probe, | |
1164 | .remove = dac33_soc_remove, | |
1165 | .suspend = dac33_soc_suspend, | |
1166 | .resume = dac33_soc_resume, | |
1167 | }; | |
1168 | EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320dac33); | |
1169 | ||
1170 | #define DAC33_RATES (SNDRV_PCM_RATE_44100 | \ | |
1171 | SNDRV_PCM_RATE_48000) | |
1172 | #define DAC33_FORMATS SNDRV_PCM_FMTBIT_S16_LE | |
1173 | ||
1174 | static struct snd_soc_dai_ops dac33_dai_ops = { | |
1175 | .shutdown = dac33_shutdown, | |
1176 | .hw_params = dac33_hw_params, | |
1177 | .prepare = dac33_pcm_prepare, | |
1178 | .trigger = dac33_pcm_trigger, | |
1179 | .set_sysclk = dac33_set_dai_sysclk, | |
1180 | .set_fmt = dac33_set_dai_fmt, | |
1181 | }; | |
1182 | ||
1183 | struct snd_soc_dai dac33_dai = { | |
1184 | .name = "tlv320dac33", | |
1185 | .playback = { | |
1186 | .stream_name = "Playback", | |
1187 | .channels_min = 2, | |
1188 | .channels_max = 2, | |
1189 | .rates = DAC33_RATES, | |
1190 | .formats = DAC33_FORMATS,}, | |
1191 | .ops = &dac33_dai_ops, | |
1192 | }; | |
1193 | EXPORT_SYMBOL_GPL(dac33_dai); | |
1194 | ||
735fe4cf MB |
1195 | static int __devinit dac33_i2c_probe(struct i2c_client *client, |
1196 | const struct i2c_device_id *id) | |
c8bf93f0 PU |
1197 | { |
1198 | struct tlv320dac33_platform_data *pdata; | |
1199 | struct tlv320dac33_priv *dac33; | |
1200 | struct snd_soc_codec *codec; | |
3a7aaed7 | 1201 | int ret, i; |
c8bf93f0 PU |
1202 | |
1203 | if (client->dev.platform_data == NULL) { | |
1204 | dev_err(&client->dev, "Platform data not set\n"); | |
1205 | return -ENODEV; | |
1206 | } | |
1207 | pdata = client->dev.platform_data; | |
1208 | ||
1209 | dac33 = kzalloc(sizeof(struct tlv320dac33_priv), GFP_KERNEL); | |
1210 | if (dac33 == NULL) | |
1211 | return -ENOMEM; | |
1212 | ||
1213 | codec = &dac33->codec; | |
1214 | codec->private_data = dac33; | |
1215 | codec->control_data = client; | |
1216 | ||
1217 | mutex_init(&codec->mutex); | |
1218 | mutex_init(&dac33->mutex); | |
1219 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
1220 | INIT_LIST_HEAD(&codec->dapm_paths); | |
1221 | ||
1222 | codec->name = "tlv320dac33"; | |
1223 | codec->owner = THIS_MODULE; | |
1224 | codec->read = dac33_read_reg_cache; | |
1225 | codec->write = dac33_write_locked; | |
1226 | codec->hw_write = (hw_write_t) i2c_master_send; | |
1227 | codec->bias_level = SND_SOC_BIAS_OFF; | |
1228 | codec->set_bias_level = dac33_set_bias_level; | |
1229 | codec->dai = &dac33_dai; | |
1230 | codec->num_dai = 1; | |
1231 | codec->reg_cache_size = ARRAY_SIZE(dac33_reg); | |
1232 | codec->reg_cache = kmemdup(dac33_reg, ARRAY_SIZE(dac33_reg), | |
1233 | GFP_KERNEL); | |
1234 | if (codec->reg_cache == NULL) { | |
1235 | ret = -ENOMEM; | |
1236 | goto error_reg; | |
1237 | } | |
1238 | ||
1239 | i2c_set_clientdata(client, dac33); | |
1240 | ||
1241 | dac33->power_gpio = pdata->power_gpio; | |
1242 | dac33->irq = client->irq; | |
1243 | dac33->nsample = NSAMPLE_MAX; | |
1244 | /* Disable FIFO use by default */ | |
7427b4b9 | 1245 | dac33->fifo_mode = DAC33_FIFO_BYPASS; |
c8bf93f0 PU |
1246 | |
1247 | tlv320dac33_codec = codec; | |
1248 | ||
1249 | codec->dev = &client->dev; | |
1250 | dac33_dai.dev = codec->dev; | |
1251 | ||
1252 | /* Check if the reset GPIO number is valid and request it */ | |
1253 | if (dac33->power_gpio >= 0) { | |
1254 | ret = gpio_request(dac33->power_gpio, "tlv320dac33 reset"); | |
1255 | if (ret < 0) { | |
1256 | dev_err(codec->dev, | |
1257 | "Failed to request reset GPIO (%d)\n", | |
1258 | dac33->power_gpio); | |
1259 | snd_soc_unregister_dai(&dac33_dai); | |
1260 | snd_soc_unregister_codec(codec); | |
1261 | goto error_gpio; | |
1262 | } | |
1263 | gpio_direction_output(dac33->power_gpio, 0); | |
1264 | } else { | |
1265 | dac33->chip_power = 1; | |
1266 | } | |
1267 | ||
1268 | /* Check if the IRQ number is valid and request it */ | |
1269 | if (dac33->irq >= 0) { | |
1270 | ret = request_irq(dac33->irq, dac33_interrupt_handler, | |
1271 | IRQF_TRIGGER_RISING | IRQF_DISABLED, | |
1272 | codec->name, codec); | |
1273 | if (ret < 0) { | |
1274 | dev_err(codec->dev, "Could not request IRQ%d (%d)\n", | |
1275 | dac33->irq, ret); | |
1276 | dac33->irq = -1; | |
1277 | } | |
1278 | if (dac33->irq != -1) { | |
1279 | /* Setup work queue */ | |
74ea23aa PU |
1280 | dac33->dac33_wq = |
1281 | create_singlethread_workqueue("tlv320dac33"); | |
c8bf93f0 PU |
1282 | if (dac33->dac33_wq == NULL) { |
1283 | free_irq(dac33->irq, &dac33->codec); | |
1284 | ret = -ENOMEM; | |
1285 | goto error_wq; | |
1286 | } | |
1287 | ||
1288 | INIT_WORK(&dac33->work, dac33_work); | |
1289 | } | |
1290 | } | |
1291 | ||
3a7aaed7 IK |
1292 | for (i = 0; i < ARRAY_SIZE(dac33->supplies); i++) |
1293 | dac33->supplies[i].supply = dac33_supply_names[i]; | |
1294 | ||
1295 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(dac33->supplies), | |
1296 | dac33->supplies); | |
1297 | ||
1298 | if (ret != 0) { | |
1299 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
1300 | goto err_get; | |
1301 | } | |
1302 | ||
1303 | ret = regulator_bulk_enable(ARRAY_SIZE(dac33->supplies), | |
1304 | dac33->supplies); | |
1305 | if (ret != 0) { | |
1306 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
1307 | goto err_enable; | |
1308 | } | |
1309 | ||
c8bf93f0 PU |
1310 | ret = snd_soc_register_codec(codec); |
1311 | if (ret != 0) { | |
1312 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
1313 | goto error_codec; | |
1314 | } | |
1315 | ||
1316 | ret = snd_soc_register_dai(&dac33_dai); | |
1317 | if (ret != 0) { | |
1318 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
1319 | snd_soc_unregister_codec(codec); | |
1320 | goto error_codec; | |
1321 | } | |
1322 | ||
1323 | /* Shut down the codec for now */ | |
1324 | dac33_hard_power(codec, 0); | |
1325 | ||
1326 | return ret; | |
1327 | ||
1328 | error_codec: | |
3a7aaed7 IK |
1329 | regulator_bulk_disable(ARRAY_SIZE(dac33->supplies), dac33->supplies); |
1330 | err_enable: | |
1331 | regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); | |
1332 | err_get: | |
c8bf93f0 PU |
1333 | if (dac33->irq >= 0) { |
1334 | free_irq(dac33->irq, &dac33->codec); | |
1335 | destroy_workqueue(dac33->dac33_wq); | |
1336 | } | |
1337 | error_wq: | |
1338 | if (dac33->power_gpio >= 0) | |
1339 | gpio_free(dac33->power_gpio); | |
1340 | error_gpio: | |
1341 | kfree(codec->reg_cache); | |
1342 | error_reg: | |
1343 | tlv320dac33_codec = NULL; | |
1344 | kfree(dac33); | |
1345 | ||
1346 | return ret; | |
1347 | } | |
1348 | ||
735fe4cf | 1349 | static int __devexit dac33_i2c_remove(struct i2c_client *client) |
c8bf93f0 PU |
1350 | { |
1351 | struct tlv320dac33_priv *dac33; | |
1352 | ||
1353 | dac33 = i2c_get_clientdata(client); | |
1354 | dac33_hard_power(&dac33->codec, 0); | |
1355 | ||
1356 | if (dac33->power_gpio >= 0) | |
1357 | gpio_free(dac33->power_gpio); | |
1358 | if (dac33->irq >= 0) | |
1359 | free_irq(dac33->irq, &dac33->codec); | |
1360 | ||
3a7aaed7 IK |
1361 | regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); |
1362 | ||
c8bf93f0 PU |
1363 | destroy_workqueue(dac33->dac33_wq); |
1364 | snd_soc_unregister_dai(&dac33_dai); | |
1365 | snd_soc_unregister_codec(&dac33->codec); | |
1366 | kfree(dac33->codec.reg_cache); | |
1367 | kfree(dac33); | |
1368 | tlv320dac33_codec = NULL; | |
1369 | ||
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | static const struct i2c_device_id tlv320dac33_i2c_id[] = { | |
1374 | { | |
1375 | .name = "tlv320dac33", | |
1376 | .driver_data = 0, | |
1377 | }, | |
1378 | { }, | |
1379 | }; | |
1380 | ||
1381 | static struct i2c_driver tlv320dac33_i2c_driver = { | |
1382 | .driver = { | |
1383 | .name = "tlv320dac33", | |
1384 | .owner = THIS_MODULE, | |
1385 | }, | |
1386 | .probe = dac33_i2c_probe, | |
1387 | .remove = __devexit_p(dac33_i2c_remove), | |
1388 | .id_table = tlv320dac33_i2c_id, | |
1389 | }; | |
1390 | ||
1391 | static int __init dac33_module_init(void) | |
1392 | { | |
1393 | int r; | |
1394 | r = i2c_add_driver(&tlv320dac33_i2c_driver); | |
1395 | if (r < 0) { | |
1396 | printk(KERN_ERR "DAC33: driver registration failed\n"); | |
1397 | return r; | |
1398 | } | |
1399 | return 0; | |
1400 | } | |
1401 | module_init(dac33_module_init); | |
1402 | ||
1403 | static void __exit dac33_module_exit(void) | |
1404 | { | |
1405 | i2c_del_driver(&tlv320dac33_i2c_driver); | |
1406 | } | |
1407 | module_exit(dac33_module_exit); | |
1408 | ||
1409 | ||
1410 | MODULE_DESCRIPTION("ASoC TLV320DAC33 codec driver"); | |
1411 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@nokia.com>"); | |
1412 | MODULE_LICENSE("GPL"); |