Commit | Line | Data |
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c8bf93f0 PU |
1 | /* |
2 | * ALSA SoC Texas Instruments TLV320DAC33 codec driver | |
3 | * | |
93864cf0 | 4 | * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> |
c8bf93f0 PU |
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> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
c8bf93f0 PU |
35 | #include <sound/core.h> |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
c8bf93f0 PU |
39 | #include <sound/initval.h> |
40 | #include <sound/tlv.h> | |
41 | ||
42 | #include <sound/tlv320dac33-plat.h> | |
43 | #include "tlv320dac33.h" | |
44 | ||
549675ed PU |
45 | /* |
46 | * The internal FIFO is 24576 bytes long | |
47 | * It can be configured to hold 16bit or 24bit samples | |
48 | * In 16bit configuration the FIFO can hold 6144 stereo samples | |
49 | * In 24bit configuration the FIFO can hold 4096 stereo samples | |
50 | */ | |
51 | #define DAC33_FIFO_SIZE_16BIT 6144 | |
52 | #define DAC33_FIFO_SIZE_24BIT 4096 | |
53 | #define DAC33_MODE7_MARGIN 10 /* Safety margin for FIFO in Mode7 */ | |
4260393e | 54 | |
76f47127 PU |
55 | #define BURST_BASEFREQ_HZ 49152000 |
56 | ||
f57d2cfa | 57 | #define SAMPLES_TO_US(rate, samples) \ |
c29429f3 | 58 | (1000000000 / (((rate) * 1000) / (samples))) |
f57d2cfa PU |
59 | |
60 | #define US_TO_SAMPLES(rate, us) \ | |
c29429f3 | 61 | ((rate) / (1000000 / ((us) < 1000000 ? (us) : 1000000))) |
f57d2cfa | 62 | |
a577b318 | 63 | #define UTHR_FROM_PERIOD_SIZE(samples, playrate, burstrate) \ |
c29429f3 | 64 | (((samples)*5000) / (((burstrate)*5000) / ((burstrate) - (playrate)))) |
a577b318 | 65 | |
ad05c03b PU |
66 | static void dac33_calculate_times(struct snd_pcm_substream *substream); |
67 | static int dac33_prepare_chip(struct snd_pcm_substream *substream); | |
f57d2cfa | 68 | |
c8bf93f0 PU |
69 | enum dac33_state { |
70 | DAC33_IDLE = 0, | |
71 | DAC33_PREFILL, | |
72 | DAC33_PLAYBACK, | |
73 | DAC33_FLUSH, | |
74 | }; | |
75 | ||
7427b4b9 PU |
76 | enum dac33_fifo_modes { |
77 | DAC33_FIFO_BYPASS = 0, | |
78 | DAC33_FIFO_MODE1, | |
28e05d98 | 79 | DAC33_FIFO_MODE7, |
7427b4b9 PU |
80 | DAC33_FIFO_LAST_MODE, |
81 | }; | |
82 | ||
3a7aaed7 IK |
83 | #define DAC33_NUM_SUPPLIES 3 |
84 | static const char *dac33_supply_names[DAC33_NUM_SUPPLIES] = { | |
85 | "AVDD", | |
86 | "DVDD", | |
87 | "IOVDD", | |
88 | }; | |
89 | ||
c8bf93f0 PU |
90 | struct tlv320dac33_priv { |
91 | struct mutex mutex; | |
92 | struct workqueue_struct *dac33_wq; | |
93 | struct work_struct work; | |
f0fba2ad | 94 | struct snd_soc_codec *codec; |
3a7aaed7 | 95 | struct regulator_bulk_data supplies[DAC33_NUM_SUPPLIES]; |
0b61d2b9 | 96 | struct snd_pcm_substream *substream; |
c8bf93f0 PU |
97 | int power_gpio; |
98 | int chip_power; | |
99 | int irq; | |
100 | unsigned int refclk; | |
101 | ||
102 | unsigned int alarm_threshold; /* set to be half of LATENCY_TIME_MS */ | |
7427b4b9 | 103 | enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */ |
549675ed | 104 | unsigned int fifo_size; /* Size of the FIFO in samples */ |
c8bf93f0 | 105 | unsigned int nsample; /* burst read amount from host */ |
f430a27f PU |
106 | int mode1_latency; /* latency caused by the i2c writes in |
107 | * us */ | |
6aceabb4 | 108 | u8 burst_bclkdiv; /* BCLK divider value in burst mode */ |
76f47127 | 109 | unsigned int burst_rate; /* Interface speed in Burst modes */ |
c8bf93f0 | 110 | |
eeb309a8 PU |
111 | int keep_bclk; /* Keep the BCLK continuously running |
112 | * in FIFO modes */ | |
f57d2cfa PU |
113 | spinlock_t lock; |
114 | unsigned long long t_stamp1; /* Time stamp for FIFO modes to */ | |
115 | unsigned long long t_stamp2; /* calculate the FIFO caused delay */ | |
116 | ||
117 | unsigned int mode1_us_burst; /* Time to burst read n number of | |
118 | * samples */ | |
119 | unsigned int mode7_us_to_lthr; /* Time to reach lthr from uthr */ | |
c8bf93f0 | 120 | |
9d7db2b2 PU |
121 | unsigned int uthr; |
122 | ||
c8bf93f0 | 123 | enum dac33_state state; |
f0fba2ad LG |
124 | enum snd_soc_control_type control_type; |
125 | void *control_data; | |
c8bf93f0 PU |
126 | }; |
127 | ||
128 | static const u8 dac33_reg[DAC33_CACHEREGNUM] = { | |
129 | 0x00, 0x00, 0x00, 0x00, /* 0x00 - 0x03 */ | |
130 | 0x00, 0x00, 0x00, 0x00, /* 0x04 - 0x07 */ | |
131 | 0x00, 0x00, 0x00, 0x00, /* 0x08 - 0x0b */ | |
132 | 0x00, 0x00, 0x00, 0x00, /* 0x0c - 0x0f */ | |
133 | 0x00, 0x00, 0x00, 0x00, /* 0x10 - 0x13 */ | |
134 | 0x00, 0x00, 0x00, 0x00, /* 0x14 - 0x17 */ | |
135 | 0x00, 0x00, 0x00, 0x00, /* 0x18 - 0x1b */ | |
136 | 0x00, 0x00, 0x00, 0x00, /* 0x1c - 0x1f */ | |
137 | 0x00, 0x00, 0x00, 0x00, /* 0x20 - 0x23 */ | |
138 | 0x00, 0x00, 0x00, 0x00, /* 0x24 - 0x27 */ | |
139 | 0x00, 0x00, 0x00, 0x00, /* 0x28 - 0x2b */ | |
140 | 0x00, 0x00, 0x00, 0x80, /* 0x2c - 0x2f */ | |
141 | 0x80, 0x00, 0x00, 0x00, /* 0x30 - 0x33 */ | |
142 | 0x00, 0x00, 0x00, 0x00, /* 0x34 - 0x37 */ | |
143 | 0x00, 0x00, /* 0x38 - 0x39 */ | |
144 | /* Registers 0x3a - 0x3f are reserved */ | |
145 | 0x00, 0x00, /* 0x3a - 0x3b */ | |
146 | 0x00, 0x00, 0x00, 0x00, /* 0x3c - 0x3f */ | |
147 | ||
148 | 0x00, 0x00, 0x00, 0x00, /* 0x40 - 0x43 */ | |
149 | 0x00, 0x80, /* 0x44 - 0x45 */ | |
150 | /* Registers 0x46 - 0x47 are reserved */ | |
151 | 0x80, 0x80, /* 0x46 - 0x47 */ | |
152 | ||
153 | 0x80, 0x00, 0x00, /* 0x48 - 0x4a */ | |
154 | /* Registers 0x4b - 0x7c are reserved */ | |
155 | 0x00, /* 0x4b */ | |
156 | 0x00, 0x00, 0x00, 0x00, /* 0x4c - 0x4f */ | |
157 | 0x00, 0x00, 0x00, 0x00, /* 0x50 - 0x53 */ | |
158 | 0x00, 0x00, 0x00, 0x00, /* 0x54 - 0x57 */ | |
159 | 0x00, 0x00, 0x00, 0x00, /* 0x58 - 0x5b */ | |
160 | 0x00, 0x00, 0x00, 0x00, /* 0x5c - 0x5f */ | |
161 | 0x00, 0x00, 0x00, 0x00, /* 0x60 - 0x63 */ | |
162 | 0x00, 0x00, 0x00, 0x00, /* 0x64 - 0x67 */ | |
163 | 0x00, 0x00, 0x00, 0x00, /* 0x68 - 0x6b */ | |
164 | 0x00, 0x00, 0x00, 0x00, /* 0x6c - 0x6f */ | |
165 | 0x00, 0x00, 0x00, 0x00, /* 0x70 - 0x73 */ | |
166 | 0x00, 0x00, 0x00, 0x00, /* 0x74 - 0x77 */ | |
167 | 0x00, 0x00, 0x00, 0x00, /* 0x78 - 0x7b */ | |
168 | 0x00, /* 0x7c */ | |
169 | ||
170 | 0xda, 0x33, 0x03, /* 0x7d - 0x7f */ | |
171 | }; | |
172 | ||
173 | /* Register read and write */ | |
174 | static inline unsigned int dac33_read_reg_cache(struct snd_soc_codec *codec, | |
175 | unsigned reg) | |
176 | { | |
177 | u8 *cache = codec->reg_cache; | |
178 | if (reg >= DAC33_CACHEREGNUM) | |
179 | return 0; | |
180 | ||
181 | return cache[reg]; | |
182 | } | |
183 | ||
184 | static inline void dac33_write_reg_cache(struct snd_soc_codec *codec, | |
185 | u8 reg, u8 value) | |
186 | { | |
187 | u8 *cache = codec->reg_cache; | |
188 | if (reg >= DAC33_CACHEREGNUM) | |
189 | return; | |
190 | ||
191 | cache[reg] = value; | |
192 | } | |
193 | ||
194 | static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, | |
195 | u8 *value) | |
196 | { | |
b2c812e2 | 197 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
911a0f0b | 198 | int val, ret = 0; |
c8bf93f0 PU |
199 | |
200 | *value = reg & 0xff; | |
201 | ||
202 | /* If powered off, return the cached value */ | |
203 | if (dac33->chip_power) { | |
204 | val = i2c_smbus_read_byte_data(codec->control_data, value[0]); | |
205 | if (val < 0) { | |
206 | dev_err(codec->dev, "Read failed (%d)\n", val); | |
207 | value[0] = dac33_read_reg_cache(codec, reg); | |
911a0f0b | 208 | ret = val; |
c8bf93f0 PU |
209 | } else { |
210 | value[0] = val; | |
211 | dac33_write_reg_cache(codec, reg, val); | |
212 | } | |
213 | } else { | |
214 | value[0] = dac33_read_reg_cache(codec, reg); | |
215 | } | |
216 | ||
911a0f0b | 217 | return ret; |
c8bf93f0 PU |
218 | } |
219 | ||
220 | static int dac33_write(struct snd_soc_codec *codec, unsigned int reg, | |
221 | unsigned int value) | |
222 | { | |
b2c812e2 | 223 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
224 | u8 data[2]; |
225 | int ret = 0; | |
226 | ||
227 | /* | |
228 | * data is | |
229 | * D15..D8 dac33 register offset | |
230 | * D7...D0 register data | |
231 | */ | |
232 | data[0] = reg & 0xff; | |
233 | data[1] = value & 0xff; | |
234 | ||
235 | dac33_write_reg_cache(codec, data[0], data[1]); | |
236 | if (dac33->chip_power) { | |
237 | ret = codec->hw_write(codec->control_data, data, 2); | |
238 | if (ret != 2) | |
239 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
240 | else | |
241 | ret = 0; | |
242 | } | |
243 | ||
244 | return ret; | |
245 | } | |
246 | ||
247 | static int dac33_write_locked(struct snd_soc_codec *codec, unsigned int reg, | |
248 | unsigned int value) | |
249 | { | |
b2c812e2 | 250 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
251 | int ret; |
252 | ||
253 | mutex_lock(&dac33->mutex); | |
254 | ret = dac33_write(codec, reg, value); | |
255 | mutex_unlock(&dac33->mutex); | |
256 | ||
257 | return ret; | |
258 | } | |
259 | ||
260 | #define DAC33_I2C_ADDR_AUTOINC 0x80 | |
261 | static int dac33_write16(struct snd_soc_codec *codec, unsigned int reg, | |
262 | unsigned int value) | |
263 | { | |
b2c812e2 | 264 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
265 | u8 data[3]; |
266 | int ret = 0; | |
267 | ||
268 | /* | |
269 | * data is | |
270 | * D23..D16 dac33 register offset | |
271 | * D15..D8 register data MSB | |
272 | * D7...D0 register data LSB | |
273 | */ | |
274 | data[0] = reg & 0xff; | |
275 | data[1] = (value >> 8) & 0xff; | |
276 | data[2] = value & 0xff; | |
277 | ||
278 | dac33_write_reg_cache(codec, data[0], data[1]); | |
279 | dac33_write_reg_cache(codec, data[0] + 1, data[2]); | |
280 | ||
281 | if (dac33->chip_power) { | |
282 | /* We need to set autoincrement mode for 16 bit writes */ | |
283 | data[0] |= DAC33_I2C_ADDR_AUTOINC; | |
284 | ret = codec->hw_write(codec->control_data, data, 3); | |
285 | if (ret != 3) | |
286 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
287 | else | |
288 | ret = 0; | |
289 | } | |
290 | ||
291 | return ret; | |
292 | } | |
293 | ||
ef909d67 | 294 | static void dac33_init_chip(struct snd_soc_codec *codec) |
c8bf93f0 | 295 | { |
b2c812e2 | 296 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 297 | |
ef909d67 | 298 | if (unlikely(!dac33->chip_power)) |
c8bf93f0 PU |
299 | return; |
300 | ||
ef909d67 PU |
301 | /* A : DAC sample rate Fsref/1.5 */ |
302 | dac33_write(codec, DAC33_DAC_CTRL_A, DAC33_DACRATE(0)); | |
303 | /* B : DAC src=normal, not muted */ | |
304 | dac33_write(codec, DAC33_DAC_CTRL_B, DAC33_DACSRCR_RIGHT | | |
305 | DAC33_DACSRCL_LEFT); | |
306 | /* C : (defaults) */ | |
307 | dac33_write(codec, DAC33_DAC_CTRL_C, 0x00); | |
308 | ||
ef909d67 PU |
309 | /* 73 : volume soft stepping control, |
310 | clock source = internal osc (?) */ | |
311 | dac33_write(codec, DAC33_ANA_VOL_SOFT_STEP_CTRL, DAC33_VOLCLKEN); | |
312 | ||
ef909d67 PU |
313 | /* Restore only selected registers (gains mostly) */ |
314 | dac33_write(codec, DAC33_LDAC_DIG_VOL_CTRL, | |
315 | dac33_read_reg_cache(codec, DAC33_LDAC_DIG_VOL_CTRL)); | |
316 | dac33_write(codec, DAC33_RDAC_DIG_VOL_CTRL, | |
317 | dac33_read_reg_cache(codec, DAC33_RDAC_DIG_VOL_CTRL)); | |
318 | ||
319 | dac33_write(codec, DAC33_LINEL_TO_LLO_VOL, | |
320 | dac33_read_reg_cache(codec, DAC33_LINEL_TO_LLO_VOL)); | |
321 | dac33_write(codec, DAC33_LINER_TO_RLO_VOL, | |
322 | dac33_read_reg_cache(codec, DAC33_LINER_TO_RLO_VOL)); | |
399b82e4 PU |
323 | |
324 | dac33_write(codec, DAC33_OUT_AMP_CTRL, | |
325 | dac33_read_reg_cache(codec, DAC33_OUT_AMP_CTRL)); | |
326 | ||
56a3536c PU |
327 | dac33_write(codec, DAC33_LDAC_PWR_CTRL, |
328 | dac33_read_reg_cache(codec, DAC33_LDAC_PWR_CTRL)); | |
329 | dac33_write(codec, DAC33_RDAC_PWR_CTRL, | |
330 | dac33_read_reg_cache(codec, DAC33_RDAC_PWR_CTRL)); | |
c8bf93f0 PU |
331 | } |
332 | ||
911a0f0b | 333 | static inline int dac33_read_id(struct snd_soc_codec *codec) |
239fe55c | 334 | { |
911a0f0b | 335 | int i, ret = 0; |
239fe55c PU |
336 | u8 reg; |
337 | ||
911a0f0b PU |
338 | for (i = 0; i < 3; i++) { |
339 | ret = dac33_read(codec, DAC33_DEVICE_ID_MSB + i, ®); | |
340 | if (ret < 0) | |
341 | break; | |
342 | } | |
343 | ||
344 | return ret; | |
c8bf93f0 PU |
345 | } |
346 | ||
347 | static inline void dac33_soft_power(struct snd_soc_codec *codec, int power) | |
348 | { | |
349 | u8 reg; | |
350 | ||
351 | reg = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
352 | if (power) | |
353 | reg |= DAC33_PDNALLB; | |
354 | else | |
c3746a07 PU |
355 | reg &= ~(DAC33_PDNALLB | DAC33_OSCPDNB | |
356 | DAC33_DACRPDNB | DAC33_DACLPDNB); | |
c8bf93f0 PU |
357 | dac33_write(codec, DAC33_PWR_CTRL, reg); |
358 | } | |
359 | ||
a6cea965 PU |
360 | static inline void dac33_disable_digital(struct snd_soc_codec *codec) |
361 | { | |
362 | u8 reg; | |
363 | ||
364 | /* Stop the DAI clock */ | |
365 | reg = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
366 | reg &= ~DAC33_BCLKON; | |
367 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, reg); | |
368 | ||
369 | /* Power down the Oscillator, and DACs */ | |
370 | reg = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
371 | reg &= ~(DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB); | |
372 | dac33_write(codec, DAC33_PWR_CTRL, reg); | |
373 | } | |
374 | ||
3a7aaed7 | 375 | static int dac33_hard_power(struct snd_soc_codec *codec, int power) |
c8bf93f0 | 376 | { |
b2c812e2 | 377 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
ad05c03b | 378 | int ret = 0; |
c8bf93f0 PU |
379 | |
380 | mutex_lock(&dac33->mutex); | |
ad05c03b PU |
381 | |
382 | /* Safety check */ | |
383 | if (unlikely(power == dac33->chip_power)) { | |
7fd1d74b | 384 | dev_dbg(codec->dev, "Trying to set the same power state: %s\n", |
ad05c03b PU |
385 | power ? "ON" : "OFF"); |
386 | goto exit; | |
387 | } | |
388 | ||
c8bf93f0 | 389 | if (power) { |
3a7aaed7 IK |
390 | ret = regulator_bulk_enable(ARRAY_SIZE(dac33->supplies), |
391 | dac33->supplies); | |
392 | if (ret != 0) { | |
393 | dev_err(codec->dev, | |
394 | "Failed to enable supplies: %d\n", ret); | |
395 | goto exit; | |
c8bf93f0 | 396 | } |
3a7aaed7 IK |
397 | |
398 | if (dac33->power_gpio >= 0) | |
399 | gpio_set_value(dac33->power_gpio, 1); | |
400 | ||
401 | dac33->chip_power = 1; | |
c8bf93f0 PU |
402 | } else { |
403 | dac33_soft_power(codec, 0); | |
3a7aaed7 | 404 | if (dac33->power_gpio >= 0) |
c8bf93f0 | 405 | gpio_set_value(dac33->power_gpio, 0); |
3a7aaed7 IK |
406 | |
407 | ret = regulator_bulk_disable(ARRAY_SIZE(dac33->supplies), | |
408 | dac33->supplies); | |
409 | if (ret != 0) { | |
410 | dev_err(codec->dev, | |
411 | "Failed to disable supplies: %d\n", ret); | |
412 | goto exit; | |
c8bf93f0 | 413 | } |
3a7aaed7 IK |
414 | |
415 | dac33->chip_power = 0; | |
c8bf93f0 | 416 | } |
c8bf93f0 | 417 | |
3a7aaed7 IK |
418 | exit: |
419 | mutex_unlock(&dac33->mutex); | |
420 | return ret; | |
c8bf93f0 PU |
421 | } |
422 | ||
a6cea965 | 423 | static int dac33_playback_event(struct snd_soc_dapm_widget *w, |
ad05c03b PU |
424 | struct snd_kcontrol *kcontrol, int event) |
425 | { | |
426 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(w->codec); | |
427 | ||
428 | switch (event) { | |
429 | case SND_SOC_DAPM_PRE_PMU: | |
430 | if (likely(dac33->substream)) { | |
431 | dac33_calculate_times(dac33->substream); | |
432 | dac33_prepare_chip(dac33->substream); | |
433 | } | |
434 | break; | |
a6cea965 PU |
435 | case SND_SOC_DAPM_POST_PMD: |
436 | dac33_disable_digital(w->codec); | |
437 | break; | |
ad05c03b PU |
438 | } |
439 | return 0; | |
440 | } | |
441 | ||
7427b4b9 | 442 | static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol, |
c8bf93f0 PU |
443 | struct snd_ctl_elem_value *ucontrol) |
444 | { | |
445 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
b2c812e2 | 446 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 447 | |
7427b4b9 | 448 | ucontrol->value.integer.value[0] = dac33->fifo_mode; |
c8bf93f0 PU |
449 | |
450 | return 0; | |
451 | } | |
452 | ||
7427b4b9 | 453 | static int dac33_set_fifo_mode(struct snd_kcontrol *kcontrol, |
c8bf93f0 PU |
454 | struct snd_ctl_elem_value *ucontrol) |
455 | { | |
456 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
b2c812e2 | 457 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
458 | int ret = 0; |
459 | ||
7427b4b9 | 460 | if (dac33->fifo_mode == ucontrol->value.integer.value[0]) |
c8bf93f0 PU |
461 | return 0; |
462 | /* Do not allow changes while stream is running*/ | |
463 | if (codec->active) | |
464 | return -EPERM; | |
465 | ||
466 | if (ucontrol->value.integer.value[0] < 0 || | |
7427b4b9 | 467 | ucontrol->value.integer.value[0] >= DAC33_FIFO_LAST_MODE) |
c8bf93f0 PU |
468 | ret = -EINVAL; |
469 | else | |
7427b4b9 | 470 | dac33->fifo_mode = ucontrol->value.integer.value[0]; |
c8bf93f0 PU |
471 | |
472 | return ret; | |
473 | } | |
474 | ||
7427b4b9 PU |
475 | /* Codec operation modes */ |
476 | static const char *dac33_fifo_mode_texts[] = { | |
28e05d98 | 477 | "Bypass", "Mode 1", "Mode 7" |
7427b4b9 PU |
478 | }; |
479 | ||
480 | static const struct soc_enum dac33_fifo_mode_enum = | |
481 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(dac33_fifo_mode_texts), | |
482 | dac33_fifo_mode_texts); | |
483 | ||
cf4bb698 PU |
484 | /* L/R Line Output Gain */ |
485 | static const char *lr_lineout_gain_texts[] = { | |
486 | "Line -12dB DAC 0dB", "Line -6dB DAC 6dB", | |
487 | "Line 0dB DAC 12dB", "Line 6dB DAC 18dB", | |
488 | }; | |
489 | ||
490 | static const struct soc_enum l_lineout_gain_enum = | |
491 | SOC_ENUM_SINGLE(DAC33_LDAC_PWR_CTRL, 0, | |
492 | ARRAY_SIZE(lr_lineout_gain_texts), | |
493 | lr_lineout_gain_texts); | |
494 | ||
495 | static const struct soc_enum r_lineout_gain_enum = | |
496 | SOC_ENUM_SINGLE(DAC33_RDAC_PWR_CTRL, 0, | |
497 | ARRAY_SIZE(lr_lineout_gain_texts), | |
498 | lr_lineout_gain_texts); | |
499 | ||
c8bf93f0 PU |
500 | /* |
501 | * DACL/R digital volume control: | |
502 | * from 0 dB to -63.5 in 0.5 dB steps | |
503 | * Need to be inverted later on: | |
504 | * 0x00 == 0 dB | |
505 | * 0x7f == -63.5 dB | |
506 | */ | |
507 | static DECLARE_TLV_DB_SCALE(dac_digivol_tlv, -6350, 50, 0); | |
508 | ||
509 | static const struct snd_kcontrol_new dac33_snd_controls[] = { | |
510 | SOC_DOUBLE_R_TLV("DAC Digital Playback Volume", | |
511 | DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, | |
512 | 0, 0x7f, 1, dac_digivol_tlv), | |
513 | SOC_DOUBLE_R("DAC Digital Playback Switch", | |
514 | DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, 7, 1, 1), | |
515 | SOC_DOUBLE_R("Line to Line Out Volume", | |
516 | DAC33_LINEL_TO_LLO_VOL, DAC33_LINER_TO_RLO_VOL, 0, 127, 1), | |
cf4bb698 PU |
517 | SOC_ENUM("Left Line Output Gain", l_lineout_gain_enum), |
518 | SOC_ENUM("Right Line Output Gain", r_lineout_gain_enum), | |
c8bf93f0 PU |
519 | }; |
520 | ||
a577b318 PU |
521 | static const struct snd_kcontrol_new dac33_mode_snd_controls[] = { |
522 | SOC_ENUM_EXT("FIFO Mode", dac33_fifo_mode_enum, | |
523 | dac33_get_fifo_mode, dac33_set_fifo_mode), | |
524 | }; | |
525 | ||
c8bf93f0 PU |
526 | /* Analog bypass */ |
527 | static const struct snd_kcontrol_new dac33_dapm_abypassl_control = | |
528 | SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1); | |
529 | ||
530 | static const struct snd_kcontrol_new dac33_dapm_abypassr_control = | |
531 | SOC_DAPM_SINGLE("Switch", DAC33_LINER_TO_RLO_VOL, 7, 1, 1); | |
532 | ||
399b82e4 PU |
533 | /* LOP L/R invert selection */ |
534 | static const char *dac33_lr_lom_texts[] = {"DAC", "LOP"}; | |
535 | ||
536 | static const struct soc_enum dac33_left_lom_enum = | |
537 | SOC_ENUM_SINGLE(DAC33_OUT_AMP_CTRL, 3, | |
538 | ARRAY_SIZE(dac33_lr_lom_texts), | |
539 | dac33_lr_lom_texts); | |
540 | ||
541 | static const struct snd_kcontrol_new dac33_dapm_left_lom_control = | |
542 | SOC_DAPM_ENUM("Route", dac33_left_lom_enum); | |
543 | ||
544 | static const struct soc_enum dac33_right_lom_enum = | |
545 | SOC_ENUM_SINGLE(DAC33_OUT_AMP_CTRL, 2, | |
546 | ARRAY_SIZE(dac33_lr_lom_texts), | |
547 | dac33_lr_lom_texts); | |
548 | ||
549 | static const struct snd_kcontrol_new dac33_dapm_right_lom_control = | |
550 | SOC_DAPM_ENUM("Route", dac33_right_lom_enum); | |
551 | ||
c8bf93f0 PU |
552 | static const struct snd_soc_dapm_widget dac33_dapm_widgets[] = { |
553 | SND_SOC_DAPM_OUTPUT("LEFT_LO"), | |
554 | SND_SOC_DAPM_OUTPUT("RIGHT_LO"), | |
555 | ||
556 | SND_SOC_DAPM_INPUT("LINEL"), | |
557 | SND_SOC_DAPM_INPUT("LINER"), | |
558 | ||
76eac39c PU |
559 | SND_SOC_DAPM_DAC("DACL", "Left Playback", SND_SOC_NOPM, 0, 0), |
560 | SND_SOC_DAPM_DAC("DACR", "Right Playback", SND_SOC_NOPM, 0, 0), | |
c8bf93f0 PU |
561 | |
562 | /* Analog bypass */ | |
563 | SND_SOC_DAPM_SWITCH("Analog Left Bypass", SND_SOC_NOPM, 0, 0, | |
564 | &dac33_dapm_abypassl_control), | |
565 | SND_SOC_DAPM_SWITCH("Analog Right Bypass", SND_SOC_NOPM, 0, 0, | |
566 | &dac33_dapm_abypassr_control), | |
567 | ||
399b82e4 PU |
568 | SND_SOC_DAPM_MUX("Left LOM Inverted From", SND_SOC_NOPM, 0, 0, |
569 | &dac33_dapm_left_lom_control), | |
570 | SND_SOC_DAPM_MUX("Right LOM Inverted From", SND_SOC_NOPM, 0, 0, | |
571 | &dac33_dapm_right_lom_control), | |
572 | /* | |
573 | * For DAPM path, when only the anlog bypass path is enabled, and the | |
574 | * LOP inverted from the corresponding DAC side. | |
575 | * This is needed, so we can attach the DAC power supply in this case. | |
576 | */ | |
577 | SND_SOC_DAPM_PGA("Left Bypass PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
578 | SND_SOC_DAPM_PGA("Right Bypass PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
579 | ||
9e87186f | 580 | SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Left Amplifier", |
c8bf93f0 | 581 | DAC33_OUT_AMP_PWR_CTRL, 6, 3, 3, 0), |
9e87186f | 582 | SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Right Amplifier", |
c8bf93f0 | 583 | DAC33_OUT_AMP_PWR_CTRL, 4, 3, 3, 0), |
ad05c03b | 584 | |
76eac39c PU |
585 | SND_SOC_DAPM_SUPPLY("Left DAC Power", |
586 | DAC33_LDAC_PWR_CTRL, 2, 0, NULL, 0), | |
587 | SND_SOC_DAPM_SUPPLY("Right DAC Power", | |
588 | DAC33_RDAC_PWR_CTRL, 2, 0, NULL, 0), | |
589 | ||
4b8ffdb9 PU |
590 | SND_SOC_DAPM_SUPPLY("Codec Power", |
591 | DAC33_PWR_CTRL, 4, 0, NULL, 0), | |
592 | ||
a6cea965 PU |
593 | SND_SOC_DAPM_PRE("Pre Playback", dac33_playback_event), |
594 | SND_SOC_DAPM_POST("Post Playback", dac33_playback_event), | |
c8bf93f0 PU |
595 | }; |
596 | ||
597 | static const struct snd_soc_dapm_route audio_map[] = { | |
598 | /* Analog bypass */ | |
599 | {"Analog Left Bypass", "Switch", "LINEL"}, | |
600 | {"Analog Right Bypass", "Switch", "LINER"}, | |
601 | ||
9e87186f PU |
602 | {"Output Left Amplifier", NULL, "DACL"}, |
603 | {"Output Right Amplifier", NULL, "DACR"}, | |
c8bf93f0 | 604 | |
399b82e4 PU |
605 | {"Left Bypass PGA", NULL, "Analog Left Bypass"}, |
606 | {"Right Bypass PGA", NULL, "Analog Right Bypass"}, | |
607 | ||
608 | {"Left LOM Inverted From", "DAC", "Left Bypass PGA"}, | |
609 | {"Right LOM Inverted From", "DAC", "Right Bypass PGA"}, | |
610 | {"Left LOM Inverted From", "LOP", "Analog Left Bypass"}, | |
611 | {"Right LOM Inverted From", "LOP", "Analog Right Bypass"}, | |
612 | ||
613 | {"Output Left Amplifier", NULL, "Left LOM Inverted From"}, | |
614 | {"Output Right Amplifier", NULL, "Right LOM Inverted From"}, | |
615 | ||
616 | {"DACL", NULL, "Left DAC Power"}, | |
617 | {"DACR", NULL, "Right DAC Power"}, | |
c8bf93f0 | 618 | |
399b82e4 PU |
619 | {"Left Bypass PGA", NULL, "Left DAC Power"}, |
620 | {"Right Bypass PGA", NULL, "Right DAC Power"}, | |
76eac39c | 621 | |
c8bf93f0 | 622 | /* output */ |
9e87186f PU |
623 | {"LEFT_LO", NULL, "Output Left Amplifier"}, |
624 | {"RIGHT_LO", NULL, "Output Right Amplifier"}, | |
4b8ffdb9 PU |
625 | |
626 | {"LEFT_LO", NULL, "Codec Power"}, | |
627 | {"RIGHT_LO", NULL, "Codec Power"}, | |
c8bf93f0 PU |
628 | }; |
629 | ||
c8bf93f0 PU |
630 | static int dac33_set_bias_level(struct snd_soc_codec *codec, |
631 | enum snd_soc_bias_level level) | |
632 | { | |
3a7aaed7 IK |
633 | int ret; |
634 | ||
c8bf93f0 PU |
635 | switch (level) { |
636 | case SND_SOC_BIAS_ON: | |
c8bf93f0 PU |
637 | break; |
638 | case SND_SOC_BIAS_PREPARE: | |
639 | break; | |
640 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 641 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
ad05c03b | 642 | /* Coming from OFF, switch on the codec */ |
3a7aaed7 IK |
643 | ret = dac33_hard_power(codec, 1); |
644 | if (ret != 0) | |
645 | return ret; | |
3a7aaed7 | 646 | |
ad05c03b PU |
647 | dac33_init_chip(codec); |
648 | } | |
c8bf93f0 PU |
649 | break; |
650 | case SND_SOC_BIAS_OFF: | |
2d4cdd6f | 651 | /* Do not power off, when the codec is already off */ |
ce6120cc | 652 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) |
2d4cdd6f | 653 | return 0; |
3a7aaed7 IK |
654 | ret = dac33_hard_power(codec, 0); |
655 | if (ret != 0) | |
656 | return ret; | |
c8bf93f0 PU |
657 | break; |
658 | } | |
ce6120cc | 659 | codec->dapm.bias_level = level; |
c8bf93f0 PU |
660 | |
661 | return 0; | |
662 | } | |
663 | ||
d4f102d4 PU |
664 | static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33) |
665 | { | |
f0fba2ad | 666 | struct snd_soc_codec *codec = dac33->codec; |
84eae18c | 667 | unsigned int delay; |
a3b55791 | 668 | unsigned long flags; |
d4f102d4 PU |
669 | |
670 | switch (dac33->fifo_mode) { | |
671 | case DAC33_FIFO_MODE1: | |
672 | dac33_write16(codec, DAC33_NSAMPLE_MSB, | |
f430a27f | 673 | DAC33_THRREG(dac33->nsample)); |
f57d2cfa PU |
674 | |
675 | /* Take the timestamps */ | |
a3b55791 | 676 | spin_lock_irqsave(&dac33->lock, flags); |
f57d2cfa PU |
677 | dac33->t_stamp2 = ktime_to_us(ktime_get()); |
678 | dac33->t_stamp1 = dac33->t_stamp2; | |
a3b55791 | 679 | spin_unlock_irqrestore(&dac33->lock, flags); |
f57d2cfa | 680 | |
d4f102d4 PU |
681 | dac33_write16(codec, DAC33_PREFILL_MSB, |
682 | DAC33_THRREG(dac33->alarm_threshold)); | |
f4d59328 | 683 | /* Enable Alarm Threshold IRQ with a delay */ |
84eae18c PU |
684 | delay = SAMPLES_TO_US(dac33->burst_rate, |
685 | dac33->alarm_threshold) + 1000; | |
686 | usleep_range(delay, delay + 500); | |
f4d59328 | 687 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MAT); |
d4f102d4 | 688 | break; |
28e05d98 | 689 | case DAC33_FIFO_MODE7: |
f57d2cfa | 690 | /* Take the timestamp */ |
a3b55791 | 691 | spin_lock_irqsave(&dac33->lock, flags); |
f57d2cfa PU |
692 | dac33->t_stamp1 = ktime_to_us(ktime_get()); |
693 | /* Move back the timestamp with drain time */ | |
694 | dac33->t_stamp1 -= dac33->mode7_us_to_lthr; | |
a3b55791 | 695 | spin_unlock_irqrestore(&dac33->lock, flags); |
f57d2cfa | 696 | |
28e05d98 | 697 | dac33_write16(codec, DAC33_PREFILL_MSB, |
549675ed | 698 | DAC33_THRREG(DAC33_MODE7_MARGIN)); |
f57d2cfa PU |
699 | |
700 | /* Enable Upper Threshold IRQ */ | |
701 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MUT); | |
28e05d98 | 702 | break; |
d4f102d4 PU |
703 | default: |
704 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
705 | dac33->fifo_mode); | |
706 | break; | |
707 | } | |
708 | } | |
709 | ||
710 | static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33) | |
711 | { | |
f0fba2ad | 712 | struct snd_soc_codec *codec = dac33->codec; |
a3b55791 | 713 | unsigned long flags; |
d4f102d4 PU |
714 | |
715 | switch (dac33->fifo_mode) { | |
716 | case DAC33_FIFO_MODE1: | |
f57d2cfa | 717 | /* Take the timestamp */ |
a3b55791 | 718 | spin_lock_irqsave(&dac33->lock, flags); |
f57d2cfa | 719 | dac33->t_stamp2 = ktime_to_us(ktime_get()); |
a3b55791 | 720 | spin_unlock_irqrestore(&dac33->lock, flags); |
f57d2cfa | 721 | |
d4f102d4 PU |
722 | dac33_write16(codec, DAC33_NSAMPLE_MSB, |
723 | DAC33_THRREG(dac33->nsample)); | |
724 | break; | |
28e05d98 PU |
725 | case DAC33_FIFO_MODE7: |
726 | /* At the moment we are not using interrupts in mode7 */ | |
727 | break; | |
d4f102d4 PU |
728 | default: |
729 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
730 | dac33->fifo_mode); | |
731 | break; | |
732 | } | |
733 | } | |
734 | ||
c8bf93f0 PU |
735 | static void dac33_work(struct work_struct *work) |
736 | { | |
737 | struct snd_soc_codec *codec; | |
738 | struct tlv320dac33_priv *dac33; | |
739 | u8 reg; | |
740 | ||
741 | dac33 = container_of(work, struct tlv320dac33_priv, work); | |
f0fba2ad | 742 | codec = dac33->codec; |
c8bf93f0 PU |
743 | |
744 | mutex_lock(&dac33->mutex); | |
745 | switch (dac33->state) { | |
746 | case DAC33_PREFILL: | |
747 | dac33->state = DAC33_PLAYBACK; | |
d4f102d4 | 748 | dac33_prefill_handler(dac33); |
c8bf93f0 PU |
749 | break; |
750 | case DAC33_PLAYBACK: | |
d4f102d4 | 751 | dac33_playback_handler(dac33); |
c8bf93f0 PU |
752 | break; |
753 | case DAC33_IDLE: | |
754 | break; | |
755 | case DAC33_FLUSH: | |
756 | dac33->state = DAC33_IDLE; | |
757 | /* Mask all interrupts from dac33 */ | |
758 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, 0); | |
759 | ||
760 | /* flush fifo */ | |
761 | reg = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); | |
762 | reg |= DAC33_FIFOFLUSH; | |
763 | dac33_write(codec, DAC33_FIFO_CTRL_A, reg); | |
764 | break; | |
765 | } | |
766 | mutex_unlock(&dac33->mutex); | |
767 | } | |
768 | ||
769 | static irqreturn_t dac33_interrupt_handler(int irq, void *dev) | |
770 | { | |
771 | struct snd_soc_codec *codec = dev; | |
b2c812e2 | 772 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
a3b55791 | 773 | unsigned long flags; |
c8bf93f0 | 774 | |
a3b55791 | 775 | spin_lock_irqsave(&dac33->lock, flags); |
f57d2cfa | 776 | dac33->t_stamp1 = ktime_to_us(ktime_get()); |
a3b55791 | 777 | spin_unlock_irqrestore(&dac33->lock, flags); |
c8bf93f0 | 778 | |
f57d2cfa PU |
779 | /* Do not schedule the workqueue in Mode7 */ |
780 | if (dac33->fifo_mode != DAC33_FIFO_MODE7) | |
781 | queue_work(dac33->dac33_wq, &dac33->work); | |
c8bf93f0 | 782 | |
c8bf93f0 | 783 | return IRQ_HANDLED; |
c8bf93f0 PU |
784 | } |
785 | ||
786 | static void dac33_oscwait(struct snd_soc_codec *codec) | |
787 | { | |
84eae18c | 788 | int timeout = 60; |
c8bf93f0 PU |
789 | u8 reg; |
790 | ||
791 | do { | |
84eae18c | 792 | usleep_range(1000, 2000); |
c8bf93f0 PU |
793 | dac33_read(codec, DAC33_INT_OSC_STATUS, ®); |
794 | } while (((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) && timeout--); | |
795 | if ((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) | |
796 | dev_err(codec->dev, | |
797 | "internal oscillator calibration failed\n"); | |
798 | } | |
799 | ||
0b61d2b9 PU |
800 | static int dac33_startup(struct snd_pcm_substream *substream, |
801 | struct snd_soc_dai *dai) | |
802 | { | |
803 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 804 | struct snd_soc_codec *codec = rtd->codec; |
0b61d2b9 PU |
805 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
806 | ||
807 | /* Stream started, save the substream pointer */ | |
808 | dac33->substream = substream; | |
809 | ||
0d99d2b0 PU |
810 | snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24); |
811 | ||
0b61d2b9 PU |
812 | return 0; |
813 | } | |
814 | ||
815 | static void dac33_shutdown(struct snd_pcm_substream *substream, | |
816 | struct snd_soc_dai *dai) | |
817 | { | |
818 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 819 | struct snd_soc_codec *codec = rtd->codec; |
0b61d2b9 PU |
820 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
821 | ||
822 | dac33->substream = NULL; | |
823 | } | |
824 | ||
549675ed PU |
825 | #define CALC_BURST_RATE(bclkdiv, bclk_per_sample) \ |
826 | (BURST_BASEFREQ_HZ / bclkdiv / bclk_per_sample) | |
c8bf93f0 PU |
827 | static int dac33_hw_params(struct snd_pcm_substream *substream, |
828 | struct snd_pcm_hw_params *params, | |
829 | struct snd_soc_dai *dai) | |
830 | { | |
831 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 832 | struct snd_soc_codec *codec = rtd->codec; |
549675ed | 833 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
834 | |
835 | /* Check parameters for validity */ | |
836 | switch (params_rate(params)) { | |
837 | case 44100: | |
838 | case 48000: | |
839 | break; | |
840 | default: | |
841 | dev_err(codec->dev, "unsupported rate %d\n", | |
842 | params_rate(params)); | |
843 | return -EINVAL; | |
844 | } | |
845 | ||
846 | switch (params_format(params)) { | |
847 | case SNDRV_PCM_FORMAT_S16_LE: | |
549675ed PU |
848 | dac33->fifo_size = DAC33_FIFO_SIZE_16BIT; |
849 | dac33->burst_rate = CALC_BURST_RATE(dac33->burst_bclkdiv, 32); | |
c8bf93f0 | 850 | break; |
0d99d2b0 PU |
851 | case SNDRV_PCM_FORMAT_S32_LE: |
852 | dac33->fifo_size = DAC33_FIFO_SIZE_24BIT; | |
853 | dac33->burst_rate = CALC_BURST_RATE(dac33->burst_bclkdiv, 64); | |
854 | break; | |
c8bf93f0 PU |
855 | default: |
856 | dev_err(codec->dev, "unsupported format %d\n", | |
857 | params_format(params)); | |
858 | return -EINVAL; | |
859 | } | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | #define CALC_OSCSET(rate, refclk) ( \ | |
7833ae0e | 865 | ((((rate * 10000) / refclk) * 4096) + 7000) / 10000) |
c8bf93f0 PU |
866 | #define CALC_RATIOSET(rate, refclk) ( \ |
867 | ((((refclk * 100000) / rate) * 16384) + 50000) / 100000) | |
868 | ||
869 | /* | |
870 | * tlv320dac33 is strict on the sequence of the register writes, if the register | |
871 | * writes happens in different order, than dac33 might end up in unknown state. | |
872 | * Use the known, working sequence of register writes to initialize the dac33. | |
873 | */ | |
874 | static int dac33_prepare_chip(struct snd_pcm_substream *substream) | |
875 | { | |
876 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 877 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 878 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 879 | unsigned int oscset, ratioset, pwr_ctrl, reg_tmp; |
aec242dc | 880 | u8 aictrl_a, aictrl_b, fifoctrl_a; |
c8bf93f0 PU |
881 | |
882 | switch (substream->runtime->rate) { | |
883 | case 44100: | |
884 | case 48000: | |
885 | oscset = CALC_OSCSET(substream->runtime->rate, dac33->refclk); | |
886 | ratioset = CALC_RATIOSET(substream->runtime->rate, | |
887 | dac33->refclk); | |
888 | break; | |
889 | default: | |
890 | dev_err(codec->dev, "unsupported rate %d\n", | |
891 | substream->runtime->rate); | |
892 | return -EINVAL; | |
893 | } | |
894 | ||
895 | ||
896 | aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); | |
897 | aictrl_a &= ~(DAC33_NCYCL_MASK | DAC33_WLEN_MASK); | |
e5e878c1 | 898 | /* Read FIFO control A, and clear FIFO flush bit */ |
c8bf93f0 | 899 | fifoctrl_a = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); |
e5e878c1 PU |
900 | fifoctrl_a &= ~DAC33_FIFOFLUSH; |
901 | ||
c8bf93f0 PU |
902 | fifoctrl_a &= ~DAC33_WIDTH; |
903 | switch (substream->runtime->format) { | |
904 | case SNDRV_PCM_FORMAT_S16_LE: | |
905 | aictrl_a |= (DAC33_NCYCL_16 | DAC33_WLEN_16); | |
906 | fifoctrl_a |= DAC33_WIDTH; | |
907 | break; | |
0d99d2b0 PU |
908 | case SNDRV_PCM_FORMAT_S32_LE: |
909 | aictrl_a |= (DAC33_NCYCL_32 | DAC33_WLEN_24); | |
910 | break; | |
c8bf93f0 PU |
911 | default: |
912 | dev_err(codec->dev, "unsupported format %d\n", | |
913 | substream->runtime->format); | |
914 | return -EINVAL; | |
915 | } | |
916 | ||
917 | mutex_lock(&dac33->mutex); | |
ad05c03b PU |
918 | |
919 | if (!dac33->chip_power) { | |
920 | /* | |
921 | * Chip is not powered yet. | |
922 | * Do the init in the dac33_set_bias_level later. | |
923 | */ | |
924 | mutex_unlock(&dac33->mutex); | |
925 | return 0; | |
926 | } | |
927 | ||
c3746a07 | 928 | dac33_soft_power(codec, 0); |
c8bf93f0 PU |
929 | dac33_soft_power(codec, 1); |
930 | ||
931 | reg_tmp = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); | |
932 | dac33_write(codec, DAC33_INT_OSC_CTRL, reg_tmp); | |
933 | ||
934 | /* Write registers 0x08 and 0x09 (MSB, LSB) */ | |
935 | dac33_write16(codec, DAC33_INT_OSC_FREQ_RAT_A, oscset); | |
936 | ||
82a58a8b PU |
937 | /* OSC calibration time */ |
938 | dac33_write(codec, DAC33_CALIB_TIME, 96); | |
c8bf93f0 PU |
939 | |
940 | /* adjustment treshold & step */ | |
941 | dac33_write(codec, DAC33_INT_OSC_CTRL_B, DAC33_ADJTHRSHLD(2) | | |
942 | DAC33_ADJSTEP(1)); | |
943 | ||
944 | /* div=4 / gain=1 / div */ | |
945 | dac33_write(codec, DAC33_INT_OSC_CTRL_C, DAC33_REFDIV(4)); | |
946 | ||
947 | pwr_ctrl = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
948 | pwr_ctrl |= DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB; | |
949 | dac33_write(codec, DAC33_PWR_CTRL, pwr_ctrl); | |
950 | ||
951 | dac33_oscwait(codec); | |
952 | ||
7427b4b9 | 953 | if (dac33->fifo_mode) { |
aec242dc | 954 | /* Generic for all FIFO modes */ |
c8bf93f0 | 955 | /* 50-51 : ASRC Control registers */ |
fdb6b1e1 | 956 | dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCLKDIV(1)); |
c8bf93f0 PU |
957 | dac33_write(codec, DAC33_ASRC_CTRL_B, 1); /* ??? */ |
958 | ||
959 | /* Write registers 0x34 and 0x35 (MSB, LSB) */ | |
960 | dac33_write16(codec, DAC33_SRC_REF_CLK_RATIO_A, ratioset); | |
961 | ||
962 | /* Set interrupts to high active */ | |
963 | dac33_write(codec, DAC33_INTP_CTRL_A, DAC33_INTPM_AHIGH); | |
c8bf93f0 | 964 | } else { |
aec242dc | 965 | /* FIFO bypass mode */ |
c8bf93f0 PU |
966 | /* 50-51 : ASRC Control registers */ |
967 | dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCBYP); | |
968 | dac33_write(codec, DAC33_ASRC_CTRL_B, 0); /* ??? */ | |
969 | } | |
970 | ||
aec242dc PU |
971 | /* Interrupt behaviour configuration */ |
972 | switch (dac33->fifo_mode) { | |
973 | case DAC33_FIFO_MODE1: | |
974 | dac33_write(codec, DAC33_FIFO_IRQ_MODE_B, | |
975 | DAC33_ATM(DAC33_FIFO_IRQ_MODE_LEVEL)); | |
aec242dc | 976 | break; |
28e05d98 | 977 | case DAC33_FIFO_MODE7: |
f57d2cfa PU |
978 | dac33_write(codec, DAC33_FIFO_IRQ_MODE_A, |
979 | DAC33_UTM(DAC33_FIFO_IRQ_MODE_LEVEL)); | |
28e05d98 | 980 | break; |
aec242dc PU |
981 | default: |
982 | /* in FIFO bypass mode, the interrupts are not used */ | |
983 | break; | |
984 | } | |
985 | ||
986 | aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
987 | ||
988 | switch (dac33->fifo_mode) { | |
989 | case DAC33_FIFO_MODE1: | |
990 | /* | |
991 | * For mode1: | |
992 | * Disable the FIFO bypass (Enable the use of FIFO) | |
993 | * Select nSample mode | |
994 | * BCLK is only running when data is needed by DAC33 | |
995 | */ | |
c8bf93f0 | 996 | fifoctrl_a &= ~DAC33_FBYPAS; |
aec242dc | 997 | fifoctrl_a &= ~DAC33_FAUTO; |
eeb309a8 PU |
998 | if (dac33->keep_bclk) |
999 | aictrl_b |= DAC33_BCLKON; | |
1000 | else | |
1001 | aictrl_b &= ~DAC33_BCLKON; | |
aec242dc | 1002 | break; |
28e05d98 PU |
1003 | case DAC33_FIFO_MODE7: |
1004 | /* | |
1005 | * For mode1: | |
1006 | * Disable the FIFO bypass (Enable the use of FIFO) | |
1007 | * Select Threshold mode | |
1008 | * BCLK is only running when data is needed by DAC33 | |
1009 | */ | |
1010 | fifoctrl_a &= ~DAC33_FBYPAS; | |
1011 | fifoctrl_a |= DAC33_FAUTO; | |
eeb309a8 PU |
1012 | if (dac33->keep_bclk) |
1013 | aictrl_b |= DAC33_BCLKON; | |
1014 | else | |
1015 | aictrl_b &= ~DAC33_BCLKON; | |
28e05d98 | 1016 | break; |
aec242dc PU |
1017 | default: |
1018 | /* | |
1019 | * For FIFO bypass mode: | |
1020 | * Enable the FIFO bypass (Disable the FIFO use) | |
25985edc | 1021 | * Set the BCLK as continuous |
aec242dc | 1022 | */ |
c8bf93f0 | 1023 | fifoctrl_a |= DAC33_FBYPAS; |
aec242dc PU |
1024 | aictrl_b |= DAC33_BCLKON; |
1025 | break; | |
1026 | } | |
c8bf93f0 | 1027 | |
aec242dc | 1028 | dac33_write(codec, DAC33_FIFO_CTRL_A, fifoctrl_a); |
c8bf93f0 | 1029 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); |
aec242dc | 1030 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); |
c8bf93f0 | 1031 | |
6aceabb4 PU |
1032 | /* |
1033 | * BCLK divide ratio | |
1034 | * 0: 1.5 | |
1035 | * 1: 1 | |
1036 | * 2: 2 | |
1037 | * ... | |
1038 | * 254: 254 | |
1039 | * 255: 255 | |
1040 | */ | |
6cd6cede | 1041 | if (dac33->fifo_mode) |
6aceabb4 PU |
1042 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, |
1043 | dac33->burst_bclkdiv); | |
6cd6cede | 1044 | else |
0d99d2b0 PU |
1045 | if (substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE) |
1046 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 32); | |
1047 | else | |
1048 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 16); | |
c8bf93f0 | 1049 | |
6cd6cede PU |
1050 | switch (dac33->fifo_mode) { |
1051 | case DAC33_FIFO_MODE1: | |
c8bf93f0 PU |
1052 | dac33_write16(codec, DAC33_ATHR_MSB, |
1053 | DAC33_THRREG(dac33->alarm_threshold)); | |
aec242dc | 1054 | break; |
28e05d98 PU |
1055 | case DAC33_FIFO_MODE7: |
1056 | /* | |
1057 | * Configure the threshold levels, and leave 10 sample space | |
1058 | * at the bottom, and also at the top of the FIFO | |
1059 | */ | |
9d7db2b2 | 1060 | dac33_write16(codec, DAC33_UTHR_MSB, DAC33_THRREG(dac33->uthr)); |
549675ed PU |
1061 | dac33_write16(codec, DAC33_LTHR_MSB, |
1062 | DAC33_THRREG(DAC33_MODE7_MARGIN)); | |
28e05d98 | 1063 | break; |
aec242dc | 1064 | default: |
aec242dc | 1065 | break; |
c8bf93f0 PU |
1066 | } |
1067 | ||
1068 | mutex_unlock(&dac33->mutex); | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static void dac33_calculate_times(struct snd_pcm_substream *substream) | |
1074 | { | |
1075 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 1076 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 1077 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
f430a27f PU |
1078 | unsigned int period_size = substream->runtime->period_size; |
1079 | unsigned int rate = substream->runtime->rate; | |
c8bf93f0 PU |
1080 | unsigned int nsample_limit; |
1081 | ||
55abb59c PU |
1082 | /* In bypass mode we don't need to calculate */ |
1083 | if (!dac33->fifo_mode) | |
1084 | return; | |
1085 | ||
f57d2cfa PU |
1086 | switch (dac33->fifo_mode) { |
1087 | case DAC33_FIFO_MODE1: | |
f430a27f PU |
1088 | /* Number of samples under i2c latency */ |
1089 | dac33->alarm_threshold = US_TO_SAMPLES(rate, | |
1090 | dac33->mode1_latency); | |
549675ed | 1091 | nsample_limit = dac33->fifo_size - dac33->alarm_threshold; |
1bc13b2e | 1092 | |
3591f4cd | 1093 | if (period_size <= dac33->alarm_threshold) |
a577b318 | 1094 | /* |
3591f4cd PU |
1095 | * Configure nSamaple to number of periods, |
1096 | * which covers the latency requironment. | |
a577b318 | 1097 | */ |
3591f4cd PU |
1098 | dac33->nsample = period_size * |
1099 | ((dac33->alarm_threshold / period_size) + | |
1100 | (dac33->alarm_threshold % period_size ? | |
1101 | 1 : 0)); | |
1102 | else if (period_size > nsample_limit) | |
1103 | dac33->nsample = nsample_limit; | |
1104 | else | |
1105 | dac33->nsample = period_size; | |
f430a27f | 1106 | |
f57d2cfa PU |
1107 | dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate, |
1108 | dac33->nsample); | |
1109 | dac33->t_stamp1 = 0; | |
1110 | dac33->t_stamp2 = 0; | |
1111 | break; | |
1112 | case DAC33_FIFO_MODE7: | |
3591f4cd PU |
1113 | dac33->uthr = UTHR_FROM_PERIOD_SIZE(period_size, rate, |
1114 | dac33->burst_rate) + 9; | |
549675ed PU |
1115 | if (dac33->uthr > (dac33->fifo_size - DAC33_MODE7_MARGIN)) |
1116 | dac33->uthr = dac33->fifo_size - DAC33_MODE7_MARGIN; | |
1117 | if (dac33->uthr < (DAC33_MODE7_MARGIN + 10)) | |
1118 | dac33->uthr = (DAC33_MODE7_MARGIN + 10); | |
3591f4cd | 1119 | |
f57d2cfa | 1120 | dac33->mode7_us_to_lthr = |
9d7db2b2 | 1121 | SAMPLES_TO_US(substream->runtime->rate, |
549675ed | 1122 | dac33->uthr - DAC33_MODE7_MARGIN + 1); |
f57d2cfa PU |
1123 | dac33->t_stamp1 = 0; |
1124 | break; | |
1125 | default: | |
1126 | break; | |
1127 | } | |
c8bf93f0 | 1128 | |
c8bf93f0 PU |
1129 | } |
1130 | ||
1131 | static int dac33_pcm_trigger(struct snd_pcm_substream *substream, int cmd, | |
1132 | struct snd_soc_dai *dai) | |
1133 | { | |
1134 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 1135 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 1136 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1137 | int ret = 0; |
1138 | ||
1139 | switch (cmd) { | |
1140 | case SNDRV_PCM_TRIGGER_START: | |
1141 | case SNDRV_PCM_TRIGGER_RESUME: | |
1142 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
7427b4b9 | 1143 | if (dac33->fifo_mode) { |
c8bf93f0 PU |
1144 | dac33->state = DAC33_PREFILL; |
1145 | queue_work(dac33->dac33_wq, &dac33->work); | |
1146 | } | |
1147 | break; | |
1148 | case SNDRV_PCM_TRIGGER_STOP: | |
1149 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1150 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
7427b4b9 | 1151 | if (dac33->fifo_mode) { |
c8bf93f0 PU |
1152 | dac33->state = DAC33_FLUSH; |
1153 | queue_work(dac33->dac33_wq, &dac33->work); | |
1154 | } | |
1155 | break; | |
1156 | default: | |
1157 | ret = -EINVAL; | |
1158 | } | |
1159 | ||
1160 | return ret; | |
1161 | } | |
1162 | ||
f57d2cfa PU |
1163 | static snd_pcm_sframes_t dac33_dai_delay( |
1164 | struct snd_pcm_substream *substream, | |
1165 | struct snd_soc_dai *dai) | |
1166 | { | |
1167 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 1168 | struct snd_soc_codec *codec = rtd->codec; |
f57d2cfa PU |
1169 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
1170 | unsigned long long t0, t1, t_now; | |
9d7db2b2 | 1171 | unsigned int time_delta, uthr; |
f57d2cfa PU |
1172 | int samples_out, samples_in, samples; |
1173 | snd_pcm_sframes_t delay = 0; | |
a3b55791 | 1174 | unsigned long flags; |
f57d2cfa PU |
1175 | |
1176 | switch (dac33->fifo_mode) { | |
1177 | case DAC33_FIFO_BYPASS: | |
1178 | break; | |
1179 | case DAC33_FIFO_MODE1: | |
a3b55791 | 1180 | spin_lock_irqsave(&dac33->lock, flags); |
f57d2cfa PU |
1181 | t0 = dac33->t_stamp1; |
1182 | t1 = dac33->t_stamp2; | |
a3b55791 | 1183 | spin_unlock_irqrestore(&dac33->lock, flags); |
f57d2cfa PU |
1184 | t_now = ktime_to_us(ktime_get()); |
1185 | ||
1186 | /* We have not started to fill the FIFO yet, delay is 0 */ | |
1187 | if (!t1) | |
1188 | goto out; | |
1189 | ||
1190 | if (t0 > t1) { | |
1191 | /* | |
1192 | * Phase 1: | |
1193 | * After Alarm threshold, and before nSample write | |
1194 | */ | |
1195 | time_delta = t_now - t0; | |
1196 | samples_out = time_delta ? US_TO_SAMPLES( | |
1197 | substream->runtime->rate, | |
1198 | time_delta) : 0; | |
1199 | ||
1200 | if (likely(dac33->alarm_threshold > samples_out)) | |
1201 | delay = dac33->alarm_threshold - samples_out; | |
1202 | else | |
1203 | delay = 0; | |
1204 | } else if ((t_now - t1) <= dac33->mode1_us_burst) { | |
1205 | /* | |
1206 | * Phase 2: | |
1207 | * After nSample write (during burst operation) | |
1208 | */ | |
1209 | time_delta = t_now - t0; | |
1210 | samples_out = time_delta ? US_TO_SAMPLES( | |
1211 | substream->runtime->rate, | |
1212 | time_delta) : 0; | |
1213 | ||
1214 | time_delta = t_now - t1; | |
1215 | samples_in = time_delta ? US_TO_SAMPLES( | |
1216 | dac33->burst_rate, | |
1217 | time_delta) : 0; | |
1218 | ||
1219 | samples = dac33->alarm_threshold; | |
1220 | samples += (samples_in - samples_out); | |
1221 | ||
1222 | if (likely(samples > 0)) | |
1223 | delay = samples; | |
1224 | else | |
1225 | delay = 0; | |
1226 | } else { | |
1227 | /* | |
1228 | * Phase 3: | |
1229 | * After burst operation, before next alarm threshold | |
1230 | */ | |
1231 | time_delta = t_now - t0; | |
1232 | samples_out = time_delta ? US_TO_SAMPLES( | |
1233 | substream->runtime->rate, | |
1234 | time_delta) : 0; | |
1235 | ||
1236 | samples_in = dac33->nsample; | |
1237 | samples = dac33->alarm_threshold; | |
1238 | samples += (samples_in - samples_out); | |
1239 | ||
1240 | if (likely(samples > 0)) | |
549675ed PU |
1241 | delay = samples > dac33->fifo_size ? |
1242 | dac33->fifo_size : samples; | |
f57d2cfa PU |
1243 | else |
1244 | delay = 0; | |
1245 | } | |
1246 | break; | |
1247 | case DAC33_FIFO_MODE7: | |
a3b55791 | 1248 | spin_lock_irqsave(&dac33->lock, flags); |
f57d2cfa | 1249 | t0 = dac33->t_stamp1; |
9d7db2b2 | 1250 | uthr = dac33->uthr; |
a3b55791 | 1251 | spin_unlock_irqrestore(&dac33->lock, flags); |
f57d2cfa PU |
1252 | t_now = ktime_to_us(ktime_get()); |
1253 | ||
1254 | /* We have not started to fill the FIFO yet, delay is 0 */ | |
1255 | if (!t0) | |
1256 | goto out; | |
1257 | ||
1258 | if (t_now <= t0) { | |
1259 | /* | |
1260 | * Either the timestamps are messed or equal. Report | |
1261 | * maximum delay | |
1262 | */ | |
9d7db2b2 | 1263 | delay = uthr; |
f57d2cfa PU |
1264 | goto out; |
1265 | } | |
1266 | ||
1267 | time_delta = t_now - t0; | |
1268 | if (time_delta <= dac33->mode7_us_to_lthr) { | |
1269 | /* | |
1270 | * Phase 1: | |
1271 | * After burst (draining phase) | |
1272 | */ | |
1273 | samples_out = US_TO_SAMPLES( | |
1274 | substream->runtime->rate, | |
1275 | time_delta); | |
1276 | ||
9d7db2b2 PU |
1277 | if (likely(uthr > samples_out)) |
1278 | delay = uthr - samples_out; | |
f57d2cfa PU |
1279 | else |
1280 | delay = 0; | |
1281 | } else { | |
1282 | /* | |
1283 | * Phase 2: | |
1284 | * During burst operation | |
1285 | */ | |
1286 | time_delta = time_delta - dac33->mode7_us_to_lthr; | |
1287 | ||
1288 | samples_out = US_TO_SAMPLES( | |
1289 | substream->runtime->rate, | |
1290 | time_delta); | |
1291 | samples_in = US_TO_SAMPLES( | |
1292 | dac33->burst_rate, | |
1293 | time_delta); | |
549675ed | 1294 | delay = DAC33_MODE7_MARGIN + samples_in - samples_out; |
f57d2cfa | 1295 | |
9d7db2b2 PU |
1296 | if (unlikely(delay > uthr)) |
1297 | delay = uthr; | |
f57d2cfa PU |
1298 | } |
1299 | break; | |
1300 | default: | |
1301 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
1302 | dac33->fifo_mode); | |
1303 | break; | |
1304 | } | |
1305 | out: | |
1306 | return delay; | |
1307 | } | |
1308 | ||
c8bf93f0 PU |
1309 | static int dac33_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
1310 | int clk_id, unsigned int freq, int dir) | |
1311 | { | |
1312 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 1313 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1314 | u8 ioc_reg, asrcb_reg; |
1315 | ||
1316 | ioc_reg = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); | |
1317 | asrcb_reg = dac33_read_reg_cache(codec, DAC33_ASRC_CTRL_B); | |
1318 | switch (clk_id) { | |
1319 | case TLV320DAC33_MCLK: | |
1320 | ioc_reg |= DAC33_REFSEL; | |
1321 | asrcb_reg |= DAC33_SRCREFSEL; | |
1322 | break; | |
1323 | case TLV320DAC33_SLEEPCLK: | |
1324 | ioc_reg &= ~DAC33_REFSEL; | |
1325 | asrcb_reg &= ~DAC33_SRCREFSEL; | |
1326 | break; | |
1327 | default: | |
1328 | dev_err(codec->dev, "Invalid clock ID (%d)\n", clk_id); | |
1329 | break; | |
1330 | } | |
1331 | dac33->refclk = freq; | |
1332 | ||
1333 | dac33_write_reg_cache(codec, DAC33_INT_OSC_CTRL, ioc_reg); | |
1334 | dac33_write_reg_cache(codec, DAC33_ASRC_CTRL_B, asrcb_reg); | |
1335 | ||
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | static int dac33_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
1340 | unsigned int fmt) | |
1341 | { | |
1342 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 1343 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1344 | u8 aictrl_a, aictrl_b; |
1345 | ||
1346 | aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); | |
1347 | aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
1348 | /* set master/slave audio interface */ | |
1349 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1350 | case SND_SOC_DAIFMT_CBM_CFM: | |
1351 | /* Codec Master */ | |
1352 | aictrl_a |= (DAC33_MSBCLK | DAC33_MSWCLK); | |
1353 | break; | |
1354 | case SND_SOC_DAIFMT_CBS_CFS: | |
1355 | /* Codec Slave */ | |
adcb8bc0 PU |
1356 | if (dac33->fifo_mode) { |
1357 | dev_err(codec->dev, "FIFO mode requires master mode\n"); | |
1358 | return -EINVAL; | |
1359 | } else | |
1360 | aictrl_a &= ~(DAC33_MSBCLK | DAC33_MSWCLK); | |
c8bf93f0 PU |
1361 | break; |
1362 | default: | |
1363 | return -EINVAL; | |
1364 | } | |
1365 | ||
1366 | aictrl_a &= ~DAC33_AFMT_MASK; | |
1367 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
1368 | case SND_SOC_DAIFMT_I2S: | |
1369 | aictrl_a |= DAC33_AFMT_I2S; | |
1370 | break; | |
1371 | case SND_SOC_DAIFMT_DSP_A: | |
1372 | aictrl_a |= DAC33_AFMT_DSP; | |
1373 | aictrl_b &= ~DAC33_DATA_DELAY_MASK; | |
44f497b4 | 1374 | aictrl_b |= DAC33_DATA_DELAY(0); |
c8bf93f0 PU |
1375 | break; |
1376 | case SND_SOC_DAIFMT_RIGHT_J: | |
1377 | aictrl_a |= DAC33_AFMT_RIGHT_J; | |
1378 | break; | |
1379 | case SND_SOC_DAIFMT_LEFT_J: | |
1380 | aictrl_a |= DAC33_AFMT_LEFT_J; | |
1381 | break; | |
1382 | default: | |
1383 | dev_err(codec->dev, "Unsupported format (%u)\n", | |
1384 | fmt & SND_SOC_DAIFMT_FORMAT_MASK); | |
1385 | return -EINVAL; | |
1386 | } | |
1387 | ||
1388 | dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); | |
1389 | dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); | |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
f0fba2ad | 1394 | static int dac33_soc_probe(struct snd_soc_codec *codec) |
c8bf93f0 | 1395 | { |
f0fba2ad | 1396 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1397 | int ret = 0; |
1398 | ||
f0fba2ad LG |
1399 | codec->control_data = dac33->control_data; |
1400 | codec->hw_write = (hw_write_t) i2c_master_send; | |
ce6120cc | 1401 | codec->dapm.idle_bias_off = 1; |
f0fba2ad | 1402 | dac33->codec = codec; |
c8bf93f0 | 1403 | |
f0fba2ad LG |
1404 | /* Read the tlv320dac33 ID registers */ |
1405 | ret = dac33_hard_power(codec, 1); | |
1406 | if (ret != 0) { | |
1407 | dev_err(codec->dev, "Failed to power up codec: %d\n", ret); | |
1408 | goto err_power; | |
1409 | } | |
911a0f0b | 1410 | ret = dac33_read_id(codec); |
f0fba2ad | 1411 | dac33_hard_power(codec, 0); |
c8bf93f0 | 1412 | |
911a0f0b PU |
1413 | if (ret < 0) { |
1414 | dev_err(codec->dev, "Failed to read chip ID: %d\n", ret); | |
1415 | ret = -ENODEV; | |
1416 | goto err_power; | |
1417 | } | |
1418 | ||
f0fba2ad LG |
1419 | /* Check if the IRQ number is valid and request it */ |
1420 | if (dac33->irq >= 0) { | |
1421 | ret = request_irq(dac33->irq, dac33_interrupt_handler, | |
88e24c3a | 1422 | IRQF_TRIGGER_RISING, |
f0fba2ad LG |
1423 | codec->name, codec); |
1424 | if (ret < 0) { | |
1425 | dev_err(codec->dev, "Could not request IRQ%d (%d)\n", | |
1426 | dac33->irq, ret); | |
1427 | dac33->irq = -1; | |
1428 | } | |
1429 | if (dac33->irq != -1) { | |
1430 | /* Setup work queue */ | |
1431 | dac33->dac33_wq = | |
1432 | create_singlethread_workqueue("tlv320dac33"); | |
1433 | if (dac33->dac33_wq == NULL) { | |
1434 | free_irq(dac33->irq, codec); | |
1435 | return -ENOMEM; | |
1436 | } | |
1437 | ||
1438 | INIT_WORK(&dac33->work, dac33_work); | |
1439 | } | |
c8bf93f0 PU |
1440 | } |
1441 | ||
a577b318 | 1442 | /* Only add the FIFO controls, if we have valid IRQ number */ |
3591f4cd | 1443 | if (dac33->irq >= 0) |
a577b318 PU |
1444 | snd_soc_add_controls(codec, dac33_mode_snd_controls, |
1445 | ARRAY_SIZE(dac33_mode_snd_controls)); | |
3591f4cd | 1446 | |
f0fba2ad | 1447 | err_power: |
c8bf93f0 PU |
1448 | return ret; |
1449 | } | |
1450 | ||
f0fba2ad | 1451 | static int dac33_soc_remove(struct snd_soc_codec *codec) |
c8bf93f0 | 1452 | { |
f0fba2ad | 1453 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1454 | |
1455 | dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
1456 | ||
f0fba2ad LG |
1457 | if (dac33->irq >= 0) { |
1458 | free_irq(dac33->irq, dac33->codec); | |
1459 | destroy_workqueue(dac33->dac33_wq); | |
1460 | } | |
c8bf93f0 PU |
1461 | return 0; |
1462 | } | |
1463 | ||
f0fba2ad | 1464 | static int dac33_soc_suspend(struct snd_soc_codec *codec, pm_message_t state) |
c8bf93f0 | 1465 | { |
c8bf93f0 PU |
1466 | dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
f0fba2ad | 1471 | static int dac33_soc_resume(struct snd_soc_codec *codec) |
c8bf93f0 | 1472 | { |
c8bf93f0 | 1473 | dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
c8bf93f0 PU |
1474 | |
1475 | return 0; | |
1476 | } | |
1477 | ||
f0fba2ad LG |
1478 | static struct snd_soc_codec_driver soc_codec_dev_tlv320dac33 = { |
1479 | .read = dac33_read_reg_cache, | |
1480 | .write = dac33_write_locked, | |
1481 | .set_bias_level = dac33_set_bias_level, | |
1482 | .reg_cache_size = ARRAY_SIZE(dac33_reg), | |
1483 | .reg_word_size = sizeof(u8), | |
1484 | .reg_cache_default = dac33_reg, | |
c8bf93f0 PU |
1485 | .probe = dac33_soc_probe, |
1486 | .remove = dac33_soc_remove, | |
1487 | .suspend = dac33_soc_suspend, | |
1488 | .resume = dac33_soc_resume, | |
8066eb55 PU |
1489 | |
1490 | .controls = dac33_snd_controls, | |
1491 | .num_controls = ARRAY_SIZE(dac33_snd_controls), | |
1492 | .dapm_widgets = dac33_dapm_widgets, | |
1493 | .num_dapm_widgets = ARRAY_SIZE(dac33_dapm_widgets), | |
1494 | .dapm_routes = audio_map, | |
1495 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
c8bf93f0 | 1496 | }; |
c8bf93f0 PU |
1497 | |
1498 | #define DAC33_RATES (SNDRV_PCM_RATE_44100 | \ | |
1499 | SNDRV_PCM_RATE_48000) | |
0d99d2b0 | 1500 | #define DAC33_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE) |
c8bf93f0 PU |
1501 | |
1502 | static struct snd_soc_dai_ops dac33_dai_ops = { | |
0b61d2b9 | 1503 | .startup = dac33_startup, |
c8bf93f0 PU |
1504 | .shutdown = dac33_shutdown, |
1505 | .hw_params = dac33_hw_params, | |
c8bf93f0 | 1506 | .trigger = dac33_pcm_trigger, |
f57d2cfa | 1507 | .delay = dac33_dai_delay, |
c8bf93f0 PU |
1508 | .set_sysclk = dac33_set_dai_sysclk, |
1509 | .set_fmt = dac33_set_dai_fmt, | |
1510 | }; | |
1511 | ||
f0fba2ad LG |
1512 | static struct snd_soc_dai_driver dac33_dai = { |
1513 | .name = "tlv320dac33-hifi", | |
c8bf93f0 PU |
1514 | .playback = { |
1515 | .stream_name = "Playback", | |
1516 | .channels_min = 2, | |
1517 | .channels_max = 2, | |
1518 | .rates = DAC33_RATES, | |
1519 | .formats = DAC33_FORMATS,}, | |
1520 | .ops = &dac33_dai_ops, | |
1521 | }; | |
c8bf93f0 | 1522 | |
735fe4cf MB |
1523 | static int __devinit dac33_i2c_probe(struct i2c_client *client, |
1524 | const struct i2c_device_id *id) | |
c8bf93f0 PU |
1525 | { |
1526 | struct tlv320dac33_platform_data *pdata; | |
1527 | struct tlv320dac33_priv *dac33; | |
3a7aaed7 | 1528 | int ret, i; |
c8bf93f0 PU |
1529 | |
1530 | if (client->dev.platform_data == NULL) { | |
1531 | dev_err(&client->dev, "Platform data not set\n"); | |
1532 | return -ENODEV; | |
1533 | } | |
1534 | pdata = client->dev.platform_data; | |
1535 | ||
1536 | dac33 = kzalloc(sizeof(struct tlv320dac33_priv), GFP_KERNEL); | |
1537 | if (dac33 == NULL) | |
1538 | return -ENOMEM; | |
1539 | ||
f0fba2ad | 1540 | dac33->control_data = client; |
c8bf93f0 | 1541 | mutex_init(&dac33->mutex); |
f57d2cfa | 1542 | spin_lock_init(&dac33->lock); |
c8bf93f0 PU |
1543 | |
1544 | i2c_set_clientdata(client, dac33); | |
1545 | ||
1546 | dac33->power_gpio = pdata->power_gpio; | |
6aceabb4 | 1547 | dac33->burst_bclkdiv = pdata->burst_bclkdiv; |
eeb309a8 | 1548 | dac33->keep_bclk = pdata->keep_bclk; |
f430a27f PU |
1549 | dac33->mode1_latency = pdata->mode1_latency; |
1550 | if (!dac33->mode1_latency) | |
1551 | dac33->mode1_latency = 10000; /* 10ms */ | |
c8bf93f0 | 1552 | dac33->irq = client->irq; |
c8bf93f0 | 1553 | /* Disable FIFO use by default */ |
7427b4b9 | 1554 | dac33->fifo_mode = DAC33_FIFO_BYPASS; |
c8bf93f0 | 1555 | |
c8bf93f0 PU |
1556 | /* Check if the reset GPIO number is valid and request it */ |
1557 | if (dac33->power_gpio >= 0) { | |
1558 | ret = gpio_request(dac33->power_gpio, "tlv320dac33 reset"); | |
1559 | if (ret < 0) { | |
f0fba2ad | 1560 | dev_err(&client->dev, |
c8bf93f0 PU |
1561 | "Failed to request reset GPIO (%d)\n", |
1562 | dac33->power_gpio); | |
f0fba2ad | 1563 | goto err_gpio; |
c8bf93f0 PU |
1564 | } |
1565 | gpio_direction_output(dac33->power_gpio, 0); | |
c8bf93f0 PU |
1566 | } |
1567 | ||
3a7aaed7 IK |
1568 | for (i = 0; i < ARRAY_SIZE(dac33->supplies); i++) |
1569 | dac33->supplies[i].supply = dac33_supply_names[i]; | |
1570 | ||
f0fba2ad | 1571 | ret = regulator_bulk_get(&client->dev, ARRAY_SIZE(dac33->supplies), |
3a7aaed7 IK |
1572 | dac33->supplies); |
1573 | ||
1574 | if (ret != 0) { | |
f0fba2ad | 1575 | dev_err(&client->dev, "Failed to request supplies: %d\n", ret); |
3a7aaed7 IK |
1576 | goto err_get; |
1577 | } | |
1578 | ||
f0fba2ad LG |
1579 | ret = snd_soc_register_codec(&client->dev, |
1580 | &soc_codec_dev_tlv320dac33, &dac33_dai, 1); | |
1581 | if (ret < 0) | |
1582 | goto err_register; | |
c8bf93f0 | 1583 | |
c8bf93f0 | 1584 | return ret; |
f0fba2ad | 1585 | err_register: |
3a7aaed7 IK |
1586 | regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); |
1587 | err_get: | |
c8bf93f0 PU |
1588 | if (dac33->power_gpio >= 0) |
1589 | gpio_free(dac33->power_gpio); | |
f0fba2ad | 1590 | err_gpio: |
c8bf93f0 | 1591 | kfree(dac33); |
c8bf93f0 PU |
1592 | return ret; |
1593 | } | |
1594 | ||
735fe4cf | 1595 | static int __devexit dac33_i2c_remove(struct i2c_client *client) |
c8bf93f0 | 1596 | { |
f0fba2ad | 1597 | struct tlv320dac33_priv *dac33 = i2c_get_clientdata(client); |
239fe55c PU |
1598 | |
1599 | if (unlikely(dac33->chip_power)) | |
f0fba2ad | 1600 | dac33_hard_power(dac33->codec, 0); |
c8bf93f0 PU |
1601 | |
1602 | if (dac33->power_gpio >= 0) | |
1603 | gpio_free(dac33->power_gpio); | |
c8bf93f0 | 1604 | |
3a7aaed7 IK |
1605 | regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); |
1606 | ||
f0fba2ad | 1607 | snd_soc_unregister_codec(&client->dev); |
c8bf93f0 | 1608 | kfree(dac33); |
c8bf93f0 PU |
1609 | |
1610 | return 0; | |
1611 | } | |
1612 | ||
1613 | static const struct i2c_device_id tlv320dac33_i2c_id[] = { | |
1614 | { | |
1615 | .name = "tlv320dac33", | |
1616 | .driver_data = 0, | |
1617 | }, | |
1618 | { }, | |
1619 | }; | |
573f26e3 | 1620 | MODULE_DEVICE_TABLE(i2c, tlv320dac33_i2c_id); |
c8bf93f0 PU |
1621 | |
1622 | static struct i2c_driver tlv320dac33_i2c_driver = { | |
1623 | .driver = { | |
f0fba2ad | 1624 | .name = "tlv320dac33-codec", |
c8bf93f0 PU |
1625 | .owner = THIS_MODULE, |
1626 | }, | |
1627 | .probe = dac33_i2c_probe, | |
1628 | .remove = __devexit_p(dac33_i2c_remove), | |
1629 | .id_table = tlv320dac33_i2c_id, | |
1630 | }; | |
1631 | ||
1632 | static int __init dac33_module_init(void) | |
1633 | { | |
1634 | int r; | |
1635 | r = i2c_add_driver(&tlv320dac33_i2c_driver); | |
1636 | if (r < 0) { | |
1637 | printk(KERN_ERR "DAC33: driver registration failed\n"); | |
1638 | return r; | |
1639 | } | |
1640 | return 0; | |
1641 | } | |
1642 | module_init(dac33_module_init); | |
1643 | ||
1644 | static void __exit dac33_module_exit(void) | |
1645 | { | |
1646 | i2c_del_driver(&tlv320dac33_i2c_driver); | |
1647 | } | |
1648 | module_exit(dac33_module_exit); | |
1649 | ||
1650 | ||
1651 | MODULE_DESCRIPTION("ASoC TLV320DAC33 codec driver"); | |
93864cf0 | 1652 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); |
c8bf93f0 | 1653 | MODULE_LICENSE("GPL"); |