Commit | Line | Data |
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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> |
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> | |
39 | #include <sound/soc-dapm.h> | |
40 | #include <sound/initval.h> | |
41 | #include <sound/tlv.h> | |
42 | ||
43 | #include <sound/tlv320dac33-plat.h> | |
44 | #include "tlv320dac33.h" | |
45 | ||
46 | #define DAC33_BUFFER_SIZE_BYTES 24576 /* bytes, 12288 16 bit words, | |
47 | * 6144 stereo */ | |
48 | #define DAC33_BUFFER_SIZE_SAMPLES 6144 | |
49 | ||
50 | #define NSAMPLE_MAX 5700 | |
51 | ||
4260393e PU |
52 | #define MODE7_LTHR 10 |
53 | #define MODE7_UTHR (DAC33_BUFFER_SIZE_SAMPLES - 10) | |
54 | ||
76f47127 PU |
55 | #define BURST_BASEFREQ_HZ 49152000 |
56 | ||
f57d2cfa PU |
57 | #define SAMPLES_TO_US(rate, samples) \ |
58 | (1000000000 / ((rate * 1000) / samples)) | |
59 | ||
60 | #define US_TO_SAMPLES(rate, us) \ | |
61 | (rate / (1000000 / us)) | |
62 | ||
a577b318 PU |
63 | #define UTHR_FROM_PERIOD_SIZE(samples, playrate, burstrate) \ |
64 | ((samples * 5000) / ((burstrate * 5000) / (burstrate - playrate))) | |
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 | static struct snd_soc_codec *tlv320dac33_codec; |
70 | ||
71 | enum dac33_state { | |
72 | DAC33_IDLE = 0, | |
73 | DAC33_PREFILL, | |
74 | DAC33_PLAYBACK, | |
75 | DAC33_FLUSH, | |
76 | }; | |
77 | ||
7427b4b9 PU |
78 | enum dac33_fifo_modes { |
79 | DAC33_FIFO_BYPASS = 0, | |
80 | DAC33_FIFO_MODE1, | |
28e05d98 | 81 | DAC33_FIFO_MODE7, |
7427b4b9 PU |
82 | DAC33_FIFO_LAST_MODE, |
83 | }; | |
84 | ||
3a7aaed7 IK |
85 | #define DAC33_NUM_SUPPLIES 3 |
86 | static const char *dac33_supply_names[DAC33_NUM_SUPPLIES] = { | |
87 | "AVDD", | |
88 | "DVDD", | |
89 | "IOVDD", | |
90 | }; | |
91 | ||
c8bf93f0 PU |
92 | struct tlv320dac33_priv { |
93 | struct mutex mutex; | |
94 | struct workqueue_struct *dac33_wq; | |
95 | struct work_struct work; | |
96 | struct snd_soc_codec codec; | |
3a7aaed7 | 97 | struct regulator_bulk_data supplies[DAC33_NUM_SUPPLIES]; |
0b61d2b9 | 98 | struct snd_pcm_substream *substream; |
c8bf93f0 PU |
99 | int power_gpio; |
100 | int chip_power; | |
101 | int irq; | |
102 | unsigned int refclk; | |
103 | ||
104 | unsigned int alarm_threshold; /* set to be half of LATENCY_TIME_MS */ | |
105 | unsigned int nsample_min; /* nsample should not be lower than | |
106 | * this */ | |
107 | unsigned int nsample_max; /* nsample should not be higher than | |
108 | * this */ | |
7427b4b9 | 109 | enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */ |
c8bf93f0 | 110 | unsigned int nsample; /* burst read amount from host */ |
f430a27f PU |
111 | int mode1_latency; /* latency caused by the i2c writes in |
112 | * us */ | |
a577b318 PU |
113 | int auto_fifo_config; /* Configure the FIFO based on the |
114 | * period size */ | |
6aceabb4 | 115 | u8 burst_bclkdiv; /* BCLK divider value in burst mode */ |
76f47127 | 116 | unsigned int burst_rate; /* Interface speed in Burst modes */ |
c8bf93f0 | 117 | |
eeb309a8 PU |
118 | int keep_bclk; /* Keep the BCLK continuously running |
119 | * in FIFO modes */ | |
f57d2cfa PU |
120 | spinlock_t lock; |
121 | unsigned long long t_stamp1; /* Time stamp for FIFO modes to */ | |
122 | unsigned long long t_stamp2; /* calculate the FIFO caused delay */ | |
123 | ||
124 | unsigned int mode1_us_burst; /* Time to burst read n number of | |
125 | * samples */ | |
126 | unsigned int mode7_us_to_lthr; /* Time to reach lthr from uthr */ | |
c8bf93f0 | 127 | |
9d7db2b2 PU |
128 | unsigned int uthr; |
129 | ||
c8bf93f0 PU |
130 | enum dac33_state state; |
131 | }; | |
132 | ||
133 | static const u8 dac33_reg[DAC33_CACHEREGNUM] = { | |
134 | 0x00, 0x00, 0x00, 0x00, /* 0x00 - 0x03 */ | |
135 | 0x00, 0x00, 0x00, 0x00, /* 0x04 - 0x07 */ | |
136 | 0x00, 0x00, 0x00, 0x00, /* 0x08 - 0x0b */ | |
137 | 0x00, 0x00, 0x00, 0x00, /* 0x0c - 0x0f */ | |
138 | 0x00, 0x00, 0x00, 0x00, /* 0x10 - 0x13 */ | |
139 | 0x00, 0x00, 0x00, 0x00, /* 0x14 - 0x17 */ | |
140 | 0x00, 0x00, 0x00, 0x00, /* 0x18 - 0x1b */ | |
141 | 0x00, 0x00, 0x00, 0x00, /* 0x1c - 0x1f */ | |
142 | 0x00, 0x00, 0x00, 0x00, /* 0x20 - 0x23 */ | |
143 | 0x00, 0x00, 0x00, 0x00, /* 0x24 - 0x27 */ | |
144 | 0x00, 0x00, 0x00, 0x00, /* 0x28 - 0x2b */ | |
145 | 0x00, 0x00, 0x00, 0x80, /* 0x2c - 0x2f */ | |
146 | 0x80, 0x00, 0x00, 0x00, /* 0x30 - 0x33 */ | |
147 | 0x00, 0x00, 0x00, 0x00, /* 0x34 - 0x37 */ | |
148 | 0x00, 0x00, /* 0x38 - 0x39 */ | |
149 | /* Registers 0x3a - 0x3f are reserved */ | |
150 | 0x00, 0x00, /* 0x3a - 0x3b */ | |
151 | 0x00, 0x00, 0x00, 0x00, /* 0x3c - 0x3f */ | |
152 | ||
153 | 0x00, 0x00, 0x00, 0x00, /* 0x40 - 0x43 */ | |
154 | 0x00, 0x80, /* 0x44 - 0x45 */ | |
155 | /* Registers 0x46 - 0x47 are reserved */ | |
156 | 0x80, 0x80, /* 0x46 - 0x47 */ | |
157 | ||
158 | 0x80, 0x00, 0x00, /* 0x48 - 0x4a */ | |
159 | /* Registers 0x4b - 0x7c are reserved */ | |
160 | 0x00, /* 0x4b */ | |
161 | 0x00, 0x00, 0x00, 0x00, /* 0x4c - 0x4f */ | |
162 | 0x00, 0x00, 0x00, 0x00, /* 0x50 - 0x53 */ | |
163 | 0x00, 0x00, 0x00, 0x00, /* 0x54 - 0x57 */ | |
164 | 0x00, 0x00, 0x00, 0x00, /* 0x58 - 0x5b */ | |
165 | 0x00, 0x00, 0x00, 0x00, /* 0x5c - 0x5f */ | |
166 | 0x00, 0x00, 0x00, 0x00, /* 0x60 - 0x63 */ | |
167 | 0x00, 0x00, 0x00, 0x00, /* 0x64 - 0x67 */ | |
168 | 0x00, 0x00, 0x00, 0x00, /* 0x68 - 0x6b */ | |
169 | 0x00, 0x00, 0x00, 0x00, /* 0x6c - 0x6f */ | |
170 | 0x00, 0x00, 0x00, 0x00, /* 0x70 - 0x73 */ | |
171 | 0x00, 0x00, 0x00, 0x00, /* 0x74 - 0x77 */ | |
172 | 0x00, 0x00, 0x00, 0x00, /* 0x78 - 0x7b */ | |
173 | 0x00, /* 0x7c */ | |
174 | ||
175 | 0xda, 0x33, 0x03, /* 0x7d - 0x7f */ | |
176 | }; | |
177 | ||
178 | /* Register read and write */ | |
179 | static inline unsigned int dac33_read_reg_cache(struct snd_soc_codec *codec, | |
180 | unsigned reg) | |
181 | { | |
182 | u8 *cache = codec->reg_cache; | |
183 | if (reg >= DAC33_CACHEREGNUM) | |
184 | return 0; | |
185 | ||
186 | return cache[reg]; | |
187 | } | |
188 | ||
189 | static inline void dac33_write_reg_cache(struct snd_soc_codec *codec, | |
190 | u8 reg, u8 value) | |
191 | { | |
192 | u8 *cache = codec->reg_cache; | |
193 | if (reg >= DAC33_CACHEREGNUM) | |
194 | return; | |
195 | ||
196 | cache[reg] = value; | |
197 | } | |
198 | ||
199 | static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, | |
200 | u8 *value) | |
201 | { | |
b2c812e2 | 202 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
203 | int val; |
204 | ||
205 | *value = reg & 0xff; | |
206 | ||
207 | /* If powered off, return the cached value */ | |
208 | if (dac33->chip_power) { | |
209 | val = i2c_smbus_read_byte_data(codec->control_data, value[0]); | |
210 | if (val < 0) { | |
211 | dev_err(codec->dev, "Read failed (%d)\n", val); | |
212 | value[0] = dac33_read_reg_cache(codec, reg); | |
213 | } else { | |
214 | value[0] = val; | |
215 | dac33_write_reg_cache(codec, reg, val); | |
216 | } | |
217 | } else { | |
218 | value[0] = dac33_read_reg_cache(codec, reg); | |
219 | } | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | static int dac33_write(struct snd_soc_codec *codec, unsigned int reg, | |
225 | unsigned int value) | |
226 | { | |
b2c812e2 | 227 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
228 | u8 data[2]; |
229 | int ret = 0; | |
230 | ||
231 | /* | |
232 | * data is | |
233 | * D15..D8 dac33 register offset | |
234 | * D7...D0 register data | |
235 | */ | |
236 | data[0] = reg & 0xff; | |
237 | data[1] = value & 0xff; | |
238 | ||
239 | dac33_write_reg_cache(codec, data[0], data[1]); | |
240 | if (dac33->chip_power) { | |
241 | ret = codec->hw_write(codec->control_data, data, 2); | |
242 | if (ret != 2) | |
243 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
244 | else | |
245 | ret = 0; | |
246 | } | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
251 | static int dac33_write_locked(struct snd_soc_codec *codec, unsigned int reg, | |
252 | unsigned int value) | |
253 | { | |
b2c812e2 | 254 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
255 | int ret; |
256 | ||
257 | mutex_lock(&dac33->mutex); | |
258 | ret = dac33_write(codec, reg, value); | |
259 | mutex_unlock(&dac33->mutex); | |
260 | ||
261 | return ret; | |
262 | } | |
263 | ||
264 | #define DAC33_I2C_ADDR_AUTOINC 0x80 | |
265 | static int dac33_write16(struct snd_soc_codec *codec, unsigned int reg, | |
266 | unsigned int value) | |
267 | { | |
b2c812e2 | 268 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
269 | u8 data[3]; |
270 | int ret = 0; | |
271 | ||
272 | /* | |
273 | * data is | |
274 | * D23..D16 dac33 register offset | |
275 | * D15..D8 register data MSB | |
276 | * D7...D0 register data LSB | |
277 | */ | |
278 | data[0] = reg & 0xff; | |
279 | data[1] = (value >> 8) & 0xff; | |
280 | data[2] = value & 0xff; | |
281 | ||
282 | dac33_write_reg_cache(codec, data[0], data[1]); | |
283 | dac33_write_reg_cache(codec, data[0] + 1, data[2]); | |
284 | ||
285 | if (dac33->chip_power) { | |
286 | /* We need to set autoincrement mode for 16 bit writes */ | |
287 | data[0] |= DAC33_I2C_ADDR_AUTOINC; | |
288 | ret = codec->hw_write(codec->control_data, data, 3); | |
289 | if (ret != 3) | |
290 | dev_err(codec->dev, "Write failed (%d)\n", ret); | |
291 | else | |
292 | ret = 0; | |
293 | } | |
294 | ||
295 | return ret; | |
296 | } | |
297 | ||
ef909d67 | 298 | static void dac33_init_chip(struct snd_soc_codec *codec) |
c8bf93f0 | 299 | { |
b2c812e2 | 300 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 301 | |
ef909d67 | 302 | if (unlikely(!dac33->chip_power)) |
c8bf93f0 PU |
303 | return; |
304 | ||
ef909d67 PU |
305 | /* 44-46: DAC Control Registers */ |
306 | /* A : DAC sample rate Fsref/1.5 */ | |
307 | dac33_write(codec, DAC33_DAC_CTRL_A, DAC33_DACRATE(0)); | |
308 | /* B : DAC src=normal, not muted */ | |
309 | dac33_write(codec, DAC33_DAC_CTRL_B, DAC33_DACSRCR_RIGHT | | |
310 | DAC33_DACSRCL_LEFT); | |
311 | /* C : (defaults) */ | |
312 | dac33_write(codec, DAC33_DAC_CTRL_C, 0x00); | |
313 | ||
ef909d67 PU |
314 | /* 73 : volume soft stepping control, |
315 | clock source = internal osc (?) */ | |
316 | dac33_write(codec, DAC33_ANA_VOL_SOFT_STEP_CTRL, DAC33_VOLCLKEN); | |
317 | ||
ef909d67 PU |
318 | dac33_write(codec, DAC33_PWR_CTRL, DAC33_PDNALLB); |
319 | ||
320 | /* Restore only selected registers (gains mostly) */ | |
321 | dac33_write(codec, DAC33_LDAC_DIG_VOL_CTRL, | |
322 | dac33_read_reg_cache(codec, DAC33_LDAC_DIG_VOL_CTRL)); | |
323 | dac33_write(codec, DAC33_RDAC_DIG_VOL_CTRL, | |
324 | dac33_read_reg_cache(codec, DAC33_RDAC_DIG_VOL_CTRL)); | |
325 | ||
326 | dac33_write(codec, DAC33_LINEL_TO_LLO_VOL, | |
327 | dac33_read_reg_cache(codec, DAC33_LINEL_TO_LLO_VOL)); | |
328 | dac33_write(codec, DAC33_LINER_TO_RLO_VOL, | |
329 | dac33_read_reg_cache(codec, DAC33_LINER_TO_RLO_VOL)); | |
c8bf93f0 PU |
330 | } |
331 | ||
239fe55c PU |
332 | static inline void dac33_read_id(struct snd_soc_codec *codec) |
333 | { | |
334 | u8 reg; | |
335 | ||
336 | dac33_read(codec, DAC33_DEVICE_ID_MSB, ®); | |
337 | dac33_read(codec, DAC33_DEVICE_ID_LSB, ®); | |
338 | dac33_read(codec, DAC33_DEVICE_REV_ID, ®); | |
c8bf93f0 PU |
339 | } |
340 | ||
341 | static inline void dac33_soft_power(struct snd_soc_codec *codec, int power) | |
342 | { | |
343 | u8 reg; | |
344 | ||
345 | reg = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
346 | if (power) | |
347 | reg |= DAC33_PDNALLB; | |
348 | else | |
c3746a07 PU |
349 | reg &= ~(DAC33_PDNALLB | DAC33_OSCPDNB | |
350 | DAC33_DACRPDNB | DAC33_DACLPDNB); | |
c8bf93f0 PU |
351 | dac33_write(codec, DAC33_PWR_CTRL, reg); |
352 | } | |
353 | ||
3a7aaed7 | 354 | static int dac33_hard_power(struct snd_soc_codec *codec, int power) |
c8bf93f0 | 355 | { |
b2c812e2 | 356 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
ad05c03b | 357 | int ret = 0; |
c8bf93f0 PU |
358 | |
359 | mutex_lock(&dac33->mutex); | |
ad05c03b PU |
360 | |
361 | /* Safety check */ | |
362 | if (unlikely(power == dac33->chip_power)) { | |
7fd1d74b | 363 | dev_dbg(codec->dev, "Trying to set the same power state: %s\n", |
ad05c03b PU |
364 | power ? "ON" : "OFF"); |
365 | goto exit; | |
366 | } | |
367 | ||
c8bf93f0 | 368 | if (power) { |
3a7aaed7 IK |
369 | ret = regulator_bulk_enable(ARRAY_SIZE(dac33->supplies), |
370 | dac33->supplies); | |
371 | if (ret != 0) { | |
372 | dev_err(codec->dev, | |
373 | "Failed to enable supplies: %d\n", ret); | |
374 | goto exit; | |
c8bf93f0 | 375 | } |
3a7aaed7 IK |
376 | |
377 | if (dac33->power_gpio >= 0) | |
378 | gpio_set_value(dac33->power_gpio, 1); | |
379 | ||
380 | dac33->chip_power = 1; | |
c8bf93f0 PU |
381 | } else { |
382 | dac33_soft_power(codec, 0); | |
3a7aaed7 | 383 | if (dac33->power_gpio >= 0) |
c8bf93f0 | 384 | gpio_set_value(dac33->power_gpio, 0); |
3a7aaed7 IK |
385 | |
386 | ret = regulator_bulk_disable(ARRAY_SIZE(dac33->supplies), | |
387 | dac33->supplies); | |
388 | if (ret != 0) { | |
389 | dev_err(codec->dev, | |
390 | "Failed to disable supplies: %d\n", ret); | |
391 | goto exit; | |
c8bf93f0 | 392 | } |
3a7aaed7 IK |
393 | |
394 | dac33->chip_power = 0; | |
c8bf93f0 | 395 | } |
c8bf93f0 | 396 | |
3a7aaed7 IK |
397 | exit: |
398 | mutex_unlock(&dac33->mutex); | |
399 | return ret; | |
c8bf93f0 PU |
400 | } |
401 | ||
ad05c03b PU |
402 | static int playback_event(struct snd_soc_dapm_widget *w, |
403 | struct snd_kcontrol *kcontrol, int event) | |
404 | { | |
405 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(w->codec); | |
406 | ||
407 | switch (event) { | |
408 | case SND_SOC_DAPM_PRE_PMU: | |
409 | if (likely(dac33->substream)) { | |
410 | dac33_calculate_times(dac33->substream); | |
411 | dac33_prepare_chip(dac33->substream); | |
412 | } | |
413 | break; | |
414 | } | |
415 | return 0; | |
416 | } | |
417 | ||
c8bf93f0 PU |
418 | static int dac33_get_nsample(struct snd_kcontrol *kcontrol, |
419 | struct snd_ctl_elem_value *ucontrol) | |
420 | { | |
421 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
b2c812e2 | 422 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
423 | |
424 | ucontrol->value.integer.value[0] = dac33->nsample; | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
429 | static int dac33_set_nsample(struct snd_kcontrol *kcontrol, | |
430 | struct snd_ctl_elem_value *ucontrol) | |
431 | { | |
432 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
b2c812e2 | 433 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
434 | int ret = 0; |
435 | ||
436 | if (dac33->nsample == ucontrol->value.integer.value[0]) | |
437 | return 0; | |
438 | ||
439 | if (ucontrol->value.integer.value[0] < dac33->nsample_min || | |
f57d2cfa | 440 | ucontrol->value.integer.value[0] > dac33->nsample_max) { |
c8bf93f0 | 441 | ret = -EINVAL; |
f57d2cfa | 442 | } else { |
c8bf93f0 | 443 | dac33->nsample = ucontrol->value.integer.value[0]; |
f57d2cfa PU |
444 | /* Re calculate the burst time */ |
445 | dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate, | |
446 | dac33->nsample); | |
447 | } | |
c8bf93f0 PU |
448 | |
449 | return ret; | |
450 | } | |
451 | ||
9d7db2b2 PU |
452 | static int dac33_get_uthr(struct snd_kcontrol *kcontrol, |
453 | struct snd_ctl_elem_value *ucontrol) | |
454 | { | |
455 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
456 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); | |
457 | ||
458 | ucontrol->value.integer.value[0] = dac33->uthr; | |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
463 | static int dac33_set_uthr(struct snd_kcontrol *kcontrol, | |
464 | struct snd_ctl_elem_value *ucontrol) | |
465 | { | |
466 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
467 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); | |
468 | int ret = 0; | |
469 | ||
470 | if (dac33->substream) | |
471 | return -EBUSY; | |
472 | ||
473 | if (dac33->uthr == ucontrol->value.integer.value[0]) | |
474 | return 0; | |
475 | ||
476 | if (ucontrol->value.integer.value[0] < (MODE7_LTHR + 10) || | |
477 | ucontrol->value.integer.value[0] > MODE7_UTHR) | |
478 | ret = -EINVAL; | |
479 | else | |
480 | dac33->uthr = ucontrol->value.integer.value[0]; | |
481 | ||
482 | return ret; | |
483 | } | |
484 | ||
7427b4b9 | 485 | static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol, |
c8bf93f0 PU |
486 | struct snd_ctl_elem_value *ucontrol) |
487 | { | |
488 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
b2c812e2 | 489 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 490 | |
7427b4b9 | 491 | ucontrol->value.integer.value[0] = dac33->fifo_mode; |
c8bf93f0 PU |
492 | |
493 | return 0; | |
494 | } | |
495 | ||
7427b4b9 | 496 | static int dac33_set_fifo_mode(struct snd_kcontrol *kcontrol, |
c8bf93f0 PU |
497 | struct snd_ctl_elem_value *ucontrol) |
498 | { | |
499 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
b2c812e2 | 500 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
501 | int ret = 0; |
502 | ||
7427b4b9 | 503 | if (dac33->fifo_mode == ucontrol->value.integer.value[0]) |
c8bf93f0 PU |
504 | return 0; |
505 | /* Do not allow changes while stream is running*/ | |
506 | if (codec->active) | |
507 | return -EPERM; | |
508 | ||
509 | if (ucontrol->value.integer.value[0] < 0 || | |
7427b4b9 | 510 | ucontrol->value.integer.value[0] >= DAC33_FIFO_LAST_MODE) |
c8bf93f0 PU |
511 | ret = -EINVAL; |
512 | else | |
7427b4b9 | 513 | dac33->fifo_mode = ucontrol->value.integer.value[0]; |
c8bf93f0 PU |
514 | |
515 | return ret; | |
516 | } | |
517 | ||
7427b4b9 PU |
518 | /* Codec operation modes */ |
519 | static const char *dac33_fifo_mode_texts[] = { | |
28e05d98 | 520 | "Bypass", "Mode 1", "Mode 7" |
7427b4b9 PU |
521 | }; |
522 | ||
523 | static const struct soc_enum dac33_fifo_mode_enum = | |
524 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(dac33_fifo_mode_texts), | |
525 | dac33_fifo_mode_texts); | |
526 | ||
c8bf93f0 PU |
527 | /* |
528 | * DACL/R digital volume control: | |
529 | * from 0 dB to -63.5 in 0.5 dB steps | |
530 | * Need to be inverted later on: | |
531 | * 0x00 == 0 dB | |
532 | * 0x7f == -63.5 dB | |
533 | */ | |
534 | static DECLARE_TLV_DB_SCALE(dac_digivol_tlv, -6350, 50, 0); | |
535 | ||
536 | static const struct snd_kcontrol_new dac33_snd_controls[] = { | |
537 | SOC_DOUBLE_R_TLV("DAC Digital Playback Volume", | |
538 | DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, | |
539 | 0, 0x7f, 1, dac_digivol_tlv), | |
540 | SOC_DOUBLE_R("DAC Digital Playback Switch", | |
541 | DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, 7, 1, 1), | |
542 | SOC_DOUBLE_R("Line to Line Out Volume", | |
543 | DAC33_LINEL_TO_LLO_VOL, DAC33_LINER_TO_RLO_VOL, 0, 127, 1), | |
544 | }; | |
545 | ||
a577b318 PU |
546 | static const struct snd_kcontrol_new dac33_mode_snd_controls[] = { |
547 | SOC_ENUM_EXT("FIFO Mode", dac33_fifo_mode_enum, | |
548 | dac33_get_fifo_mode, dac33_set_fifo_mode), | |
549 | }; | |
550 | ||
551 | static const struct snd_kcontrol_new dac33_fifo_snd_controls[] = { | |
c8bf93f0 | 552 | SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0, |
a577b318 | 553 | dac33_get_nsample, dac33_set_nsample), |
9d7db2b2 PU |
554 | SOC_SINGLE_EXT("UTHR", 0, 0, MODE7_UTHR, 0, |
555 | dac33_get_uthr, dac33_set_uthr), | |
c8bf93f0 PU |
556 | }; |
557 | ||
558 | /* Analog bypass */ | |
559 | static const struct snd_kcontrol_new dac33_dapm_abypassl_control = | |
560 | SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1); | |
561 | ||
562 | static const struct snd_kcontrol_new dac33_dapm_abypassr_control = | |
563 | SOC_DAPM_SINGLE("Switch", DAC33_LINER_TO_RLO_VOL, 7, 1, 1); | |
564 | ||
565 | static const struct snd_soc_dapm_widget dac33_dapm_widgets[] = { | |
566 | SND_SOC_DAPM_OUTPUT("LEFT_LO"), | |
567 | SND_SOC_DAPM_OUTPUT("RIGHT_LO"), | |
568 | ||
569 | SND_SOC_DAPM_INPUT("LINEL"), | |
570 | SND_SOC_DAPM_INPUT("LINER"), | |
571 | ||
572 | SND_SOC_DAPM_DAC("DACL", "Left Playback", DAC33_LDAC_PWR_CTRL, 2, 0), | |
573 | SND_SOC_DAPM_DAC("DACR", "Right Playback", DAC33_RDAC_PWR_CTRL, 2, 0), | |
574 | ||
575 | /* Analog bypass */ | |
576 | SND_SOC_DAPM_SWITCH("Analog Left Bypass", SND_SOC_NOPM, 0, 0, | |
577 | &dac33_dapm_abypassl_control), | |
578 | SND_SOC_DAPM_SWITCH("Analog Right Bypass", SND_SOC_NOPM, 0, 0, | |
579 | &dac33_dapm_abypassr_control), | |
580 | ||
581 | SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Left Amp Power", | |
582 | DAC33_OUT_AMP_PWR_CTRL, 6, 3, 3, 0), | |
583 | SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Right Amp Power", | |
584 | DAC33_OUT_AMP_PWR_CTRL, 4, 3, 3, 0), | |
ad05c03b PU |
585 | |
586 | SND_SOC_DAPM_PRE("Prepare Playback", playback_event), | |
c8bf93f0 PU |
587 | }; |
588 | ||
589 | static const struct snd_soc_dapm_route audio_map[] = { | |
590 | /* Analog bypass */ | |
591 | {"Analog Left Bypass", "Switch", "LINEL"}, | |
592 | {"Analog Right Bypass", "Switch", "LINER"}, | |
593 | ||
594 | {"Output Left Amp Power", NULL, "DACL"}, | |
595 | {"Output Right Amp Power", NULL, "DACR"}, | |
596 | ||
597 | {"Output Left Amp Power", NULL, "Analog Left Bypass"}, | |
598 | {"Output Right Amp Power", NULL, "Analog Right Bypass"}, | |
599 | ||
600 | /* output */ | |
601 | {"LEFT_LO", NULL, "Output Left Amp Power"}, | |
602 | {"RIGHT_LO", NULL, "Output Right Amp Power"}, | |
603 | }; | |
604 | ||
605 | static int dac33_add_widgets(struct snd_soc_codec *codec) | |
606 | { | |
607 | snd_soc_dapm_new_controls(codec, dac33_dapm_widgets, | |
608 | ARRAY_SIZE(dac33_dapm_widgets)); | |
609 | ||
610 | /* set up audio path interconnects */ | |
611 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
c8bf93f0 PU |
612 | |
613 | return 0; | |
614 | } | |
615 | ||
616 | static int dac33_set_bias_level(struct snd_soc_codec *codec, | |
617 | enum snd_soc_bias_level level) | |
618 | { | |
3a7aaed7 IK |
619 | int ret; |
620 | ||
c8bf93f0 PU |
621 | switch (level) { |
622 | case SND_SOC_BIAS_ON: | |
623 | dac33_soft_power(codec, 1); | |
624 | break; | |
625 | case SND_SOC_BIAS_PREPARE: | |
626 | break; | |
627 | case SND_SOC_BIAS_STANDBY: | |
3a7aaed7 | 628 | if (codec->bias_level == SND_SOC_BIAS_OFF) { |
ad05c03b | 629 | /* Coming from OFF, switch on the codec */ |
3a7aaed7 IK |
630 | ret = dac33_hard_power(codec, 1); |
631 | if (ret != 0) | |
632 | return ret; | |
3a7aaed7 | 633 | |
ad05c03b PU |
634 | dac33_init_chip(codec); |
635 | } | |
c8bf93f0 PU |
636 | break; |
637 | case SND_SOC_BIAS_OFF: | |
2d4cdd6f PU |
638 | /* Do not power off, when the codec is already off */ |
639 | if (codec->bias_level == SND_SOC_BIAS_OFF) | |
640 | return 0; | |
3a7aaed7 IK |
641 | ret = dac33_hard_power(codec, 0); |
642 | if (ret != 0) | |
643 | return ret; | |
c8bf93f0 PU |
644 | break; |
645 | } | |
646 | codec->bias_level = level; | |
647 | ||
648 | return 0; | |
649 | } | |
650 | ||
d4f102d4 PU |
651 | static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33) |
652 | { | |
653 | struct snd_soc_codec *codec; | |
654 | ||
655 | codec = &dac33->codec; | |
656 | ||
657 | switch (dac33->fifo_mode) { | |
658 | case DAC33_FIFO_MODE1: | |
659 | dac33_write16(codec, DAC33_NSAMPLE_MSB, | |
f430a27f | 660 | DAC33_THRREG(dac33->nsample)); |
f57d2cfa PU |
661 | |
662 | /* Take the timestamps */ | |
663 | spin_lock_irq(&dac33->lock); | |
664 | dac33->t_stamp2 = ktime_to_us(ktime_get()); | |
665 | dac33->t_stamp1 = dac33->t_stamp2; | |
666 | spin_unlock_irq(&dac33->lock); | |
667 | ||
d4f102d4 PU |
668 | dac33_write16(codec, DAC33_PREFILL_MSB, |
669 | DAC33_THRREG(dac33->alarm_threshold)); | |
f4d59328 PU |
670 | /* Enable Alarm Threshold IRQ with a delay */ |
671 | udelay(SAMPLES_TO_US(dac33->burst_rate, | |
672 | dac33->alarm_threshold)); | |
673 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MAT); | |
d4f102d4 | 674 | break; |
28e05d98 | 675 | case DAC33_FIFO_MODE7: |
f57d2cfa PU |
676 | /* Take the timestamp */ |
677 | spin_lock_irq(&dac33->lock); | |
678 | dac33->t_stamp1 = ktime_to_us(ktime_get()); | |
679 | /* Move back the timestamp with drain time */ | |
680 | dac33->t_stamp1 -= dac33->mode7_us_to_lthr; | |
681 | spin_unlock_irq(&dac33->lock); | |
682 | ||
28e05d98 | 683 | dac33_write16(codec, DAC33_PREFILL_MSB, |
4260393e | 684 | DAC33_THRREG(MODE7_LTHR)); |
f57d2cfa PU |
685 | |
686 | /* Enable Upper Threshold IRQ */ | |
687 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MUT); | |
28e05d98 | 688 | break; |
d4f102d4 PU |
689 | default: |
690 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
691 | dac33->fifo_mode); | |
692 | break; | |
693 | } | |
694 | } | |
695 | ||
696 | static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33) | |
697 | { | |
698 | struct snd_soc_codec *codec; | |
699 | ||
700 | codec = &dac33->codec; | |
701 | ||
702 | switch (dac33->fifo_mode) { | |
703 | case DAC33_FIFO_MODE1: | |
f57d2cfa PU |
704 | /* Take the timestamp */ |
705 | spin_lock_irq(&dac33->lock); | |
706 | dac33->t_stamp2 = ktime_to_us(ktime_get()); | |
707 | spin_unlock_irq(&dac33->lock); | |
708 | ||
d4f102d4 PU |
709 | dac33_write16(codec, DAC33_NSAMPLE_MSB, |
710 | DAC33_THRREG(dac33->nsample)); | |
711 | break; | |
28e05d98 PU |
712 | case DAC33_FIFO_MODE7: |
713 | /* At the moment we are not using interrupts in mode7 */ | |
714 | break; | |
d4f102d4 PU |
715 | default: |
716 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
717 | dac33->fifo_mode); | |
718 | break; | |
719 | } | |
720 | } | |
721 | ||
c8bf93f0 PU |
722 | static void dac33_work(struct work_struct *work) |
723 | { | |
724 | struct snd_soc_codec *codec; | |
725 | struct tlv320dac33_priv *dac33; | |
726 | u8 reg; | |
727 | ||
728 | dac33 = container_of(work, struct tlv320dac33_priv, work); | |
729 | codec = &dac33->codec; | |
730 | ||
731 | mutex_lock(&dac33->mutex); | |
732 | switch (dac33->state) { | |
733 | case DAC33_PREFILL: | |
734 | dac33->state = DAC33_PLAYBACK; | |
d4f102d4 | 735 | dac33_prefill_handler(dac33); |
c8bf93f0 PU |
736 | break; |
737 | case DAC33_PLAYBACK: | |
d4f102d4 | 738 | dac33_playback_handler(dac33); |
c8bf93f0 PU |
739 | break; |
740 | case DAC33_IDLE: | |
741 | break; | |
742 | case DAC33_FLUSH: | |
743 | dac33->state = DAC33_IDLE; | |
744 | /* Mask all interrupts from dac33 */ | |
745 | dac33_write(codec, DAC33_FIFO_IRQ_MASK, 0); | |
746 | ||
747 | /* flush fifo */ | |
748 | reg = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); | |
749 | reg |= DAC33_FIFOFLUSH; | |
750 | dac33_write(codec, DAC33_FIFO_CTRL_A, reg); | |
751 | break; | |
752 | } | |
753 | mutex_unlock(&dac33->mutex); | |
754 | } | |
755 | ||
756 | static irqreturn_t dac33_interrupt_handler(int irq, void *dev) | |
757 | { | |
758 | struct snd_soc_codec *codec = dev; | |
b2c812e2 | 759 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 760 | |
f57d2cfa PU |
761 | spin_lock(&dac33->lock); |
762 | dac33->t_stamp1 = ktime_to_us(ktime_get()); | |
763 | spin_unlock(&dac33->lock); | |
c8bf93f0 | 764 | |
f57d2cfa PU |
765 | /* Do not schedule the workqueue in Mode7 */ |
766 | if (dac33->fifo_mode != DAC33_FIFO_MODE7) | |
767 | queue_work(dac33->dac33_wq, &dac33->work); | |
c8bf93f0 | 768 | |
c8bf93f0 | 769 | return IRQ_HANDLED; |
c8bf93f0 PU |
770 | } |
771 | ||
772 | static void dac33_oscwait(struct snd_soc_codec *codec) | |
773 | { | |
774 | int timeout = 20; | |
775 | u8 reg; | |
776 | ||
777 | do { | |
778 | msleep(1); | |
779 | dac33_read(codec, DAC33_INT_OSC_STATUS, ®); | |
780 | } while (((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) && timeout--); | |
781 | if ((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) | |
782 | dev_err(codec->dev, | |
783 | "internal oscillator calibration failed\n"); | |
784 | } | |
785 | ||
0b61d2b9 PU |
786 | static int dac33_startup(struct snd_pcm_substream *substream, |
787 | struct snd_soc_dai *dai) | |
788 | { | |
789 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
790 | struct snd_soc_device *socdev = rtd->socdev; | |
791 | struct snd_soc_codec *codec = socdev->card->codec; | |
792 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); | |
793 | ||
794 | /* Stream started, save the substream pointer */ | |
795 | dac33->substream = substream; | |
796 | ||
797 | return 0; | |
798 | } | |
799 | ||
800 | static void dac33_shutdown(struct snd_pcm_substream *substream, | |
801 | struct snd_soc_dai *dai) | |
802 | { | |
803 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
804 | struct snd_soc_device *socdev = rtd->socdev; | |
805 | struct snd_soc_codec *codec = socdev->card->codec; | |
806 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); | |
807 | ||
808 | dac33->substream = NULL; | |
f430a27f PU |
809 | |
810 | /* Reset the nSample restrictions */ | |
811 | dac33->nsample_min = 0; | |
812 | dac33->nsample_max = NSAMPLE_MAX; | |
0b61d2b9 PU |
813 | } |
814 | ||
c8bf93f0 PU |
815 | static int dac33_hw_params(struct snd_pcm_substream *substream, |
816 | struct snd_pcm_hw_params *params, | |
817 | struct snd_soc_dai *dai) | |
818 | { | |
819 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
820 | struct snd_soc_device *socdev = rtd->socdev; | |
821 | struct snd_soc_codec *codec = socdev->card->codec; | |
822 | ||
823 | /* Check parameters for validity */ | |
824 | switch (params_rate(params)) { | |
825 | case 44100: | |
826 | case 48000: | |
827 | break; | |
828 | default: | |
829 | dev_err(codec->dev, "unsupported rate %d\n", | |
830 | params_rate(params)); | |
831 | return -EINVAL; | |
832 | } | |
833 | ||
834 | switch (params_format(params)) { | |
835 | case SNDRV_PCM_FORMAT_S16_LE: | |
836 | break; | |
837 | default: | |
838 | dev_err(codec->dev, "unsupported format %d\n", | |
839 | params_format(params)); | |
840 | return -EINVAL; | |
841 | } | |
842 | ||
843 | return 0; | |
844 | } | |
845 | ||
846 | #define CALC_OSCSET(rate, refclk) ( \ | |
7833ae0e | 847 | ((((rate * 10000) / refclk) * 4096) + 7000) / 10000) |
c8bf93f0 PU |
848 | #define CALC_RATIOSET(rate, refclk) ( \ |
849 | ((((refclk * 100000) / rate) * 16384) + 50000) / 100000) | |
850 | ||
851 | /* | |
852 | * tlv320dac33 is strict on the sequence of the register writes, if the register | |
853 | * writes happens in different order, than dac33 might end up in unknown state. | |
854 | * Use the known, working sequence of register writes to initialize the dac33. | |
855 | */ | |
856 | static int dac33_prepare_chip(struct snd_pcm_substream *substream) | |
857 | { | |
858 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
859 | struct snd_soc_device *socdev = rtd->socdev; | |
860 | struct snd_soc_codec *codec = socdev->card->codec; | |
b2c812e2 | 861 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 | 862 | unsigned int oscset, ratioset, pwr_ctrl, reg_tmp; |
aec242dc | 863 | u8 aictrl_a, aictrl_b, fifoctrl_a; |
c8bf93f0 PU |
864 | |
865 | switch (substream->runtime->rate) { | |
866 | case 44100: | |
867 | case 48000: | |
868 | oscset = CALC_OSCSET(substream->runtime->rate, dac33->refclk); | |
869 | ratioset = CALC_RATIOSET(substream->runtime->rate, | |
870 | dac33->refclk); | |
871 | break; | |
872 | default: | |
873 | dev_err(codec->dev, "unsupported rate %d\n", | |
874 | substream->runtime->rate); | |
875 | return -EINVAL; | |
876 | } | |
877 | ||
878 | ||
879 | aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); | |
880 | aictrl_a &= ~(DAC33_NCYCL_MASK | DAC33_WLEN_MASK); | |
e5e878c1 | 881 | /* Read FIFO control A, and clear FIFO flush bit */ |
c8bf93f0 | 882 | fifoctrl_a = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); |
e5e878c1 PU |
883 | fifoctrl_a &= ~DAC33_FIFOFLUSH; |
884 | ||
c8bf93f0 PU |
885 | fifoctrl_a &= ~DAC33_WIDTH; |
886 | switch (substream->runtime->format) { | |
887 | case SNDRV_PCM_FORMAT_S16_LE: | |
888 | aictrl_a |= (DAC33_NCYCL_16 | DAC33_WLEN_16); | |
889 | fifoctrl_a |= DAC33_WIDTH; | |
890 | break; | |
891 | default: | |
892 | dev_err(codec->dev, "unsupported format %d\n", | |
893 | substream->runtime->format); | |
894 | return -EINVAL; | |
895 | } | |
896 | ||
897 | mutex_lock(&dac33->mutex); | |
ad05c03b PU |
898 | |
899 | if (!dac33->chip_power) { | |
900 | /* | |
901 | * Chip is not powered yet. | |
902 | * Do the init in the dac33_set_bias_level later. | |
903 | */ | |
904 | mutex_unlock(&dac33->mutex); | |
905 | return 0; | |
906 | } | |
907 | ||
c3746a07 | 908 | dac33_soft_power(codec, 0); |
c8bf93f0 PU |
909 | dac33_soft_power(codec, 1); |
910 | ||
911 | reg_tmp = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); | |
912 | dac33_write(codec, DAC33_INT_OSC_CTRL, reg_tmp); | |
913 | ||
914 | /* Write registers 0x08 and 0x09 (MSB, LSB) */ | |
915 | dac33_write16(codec, DAC33_INT_OSC_FREQ_RAT_A, oscset); | |
916 | ||
917 | /* calib time: 128 is a nice number ;) */ | |
918 | dac33_write(codec, DAC33_CALIB_TIME, 128); | |
919 | ||
920 | /* adjustment treshold & step */ | |
921 | dac33_write(codec, DAC33_INT_OSC_CTRL_B, DAC33_ADJTHRSHLD(2) | | |
922 | DAC33_ADJSTEP(1)); | |
923 | ||
924 | /* div=4 / gain=1 / div */ | |
925 | dac33_write(codec, DAC33_INT_OSC_CTRL_C, DAC33_REFDIV(4)); | |
926 | ||
927 | pwr_ctrl = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); | |
928 | pwr_ctrl |= DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB; | |
929 | dac33_write(codec, DAC33_PWR_CTRL, pwr_ctrl); | |
930 | ||
931 | dac33_oscwait(codec); | |
932 | ||
7427b4b9 | 933 | if (dac33->fifo_mode) { |
aec242dc | 934 | /* Generic for all FIFO modes */ |
c8bf93f0 | 935 | /* 50-51 : ASRC Control registers */ |
fdb6b1e1 | 936 | dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCLKDIV(1)); |
c8bf93f0 PU |
937 | dac33_write(codec, DAC33_ASRC_CTRL_B, 1); /* ??? */ |
938 | ||
939 | /* Write registers 0x34 and 0x35 (MSB, LSB) */ | |
940 | dac33_write16(codec, DAC33_SRC_REF_CLK_RATIO_A, ratioset); | |
941 | ||
942 | /* Set interrupts to high active */ | |
943 | dac33_write(codec, DAC33_INTP_CTRL_A, DAC33_INTPM_AHIGH); | |
c8bf93f0 | 944 | } else { |
aec242dc | 945 | /* FIFO bypass mode */ |
c8bf93f0 PU |
946 | /* 50-51 : ASRC Control registers */ |
947 | dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCBYP); | |
948 | dac33_write(codec, DAC33_ASRC_CTRL_B, 0); /* ??? */ | |
949 | } | |
950 | ||
aec242dc PU |
951 | /* Interrupt behaviour configuration */ |
952 | switch (dac33->fifo_mode) { | |
953 | case DAC33_FIFO_MODE1: | |
954 | dac33_write(codec, DAC33_FIFO_IRQ_MODE_B, | |
955 | DAC33_ATM(DAC33_FIFO_IRQ_MODE_LEVEL)); | |
aec242dc | 956 | break; |
28e05d98 | 957 | case DAC33_FIFO_MODE7: |
f57d2cfa PU |
958 | dac33_write(codec, DAC33_FIFO_IRQ_MODE_A, |
959 | DAC33_UTM(DAC33_FIFO_IRQ_MODE_LEVEL)); | |
28e05d98 | 960 | break; |
aec242dc PU |
961 | default: |
962 | /* in FIFO bypass mode, the interrupts are not used */ | |
963 | break; | |
964 | } | |
965 | ||
966 | aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
967 | ||
968 | switch (dac33->fifo_mode) { | |
969 | case DAC33_FIFO_MODE1: | |
970 | /* | |
971 | * For mode1: | |
972 | * Disable the FIFO bypass (Enable the use of FIFO) | |
973 | * Select nSample mode | |
974 | * BCLK is only running when data is needed by DAC33 | |
975 | */ | |
c8bf93f0 | 976 | fifoctrl_a &= ~DAC33_FBYPAS; |
aec242dc | 977 | fifoctrl_a &= ~DAC33_FAUTO; |
eeb309a8 PU |
978 | if (dac33->keep_bclk) |
979 | aictrl_b |= DAC33_BCLKON; | |
980 | else | |
981 | aictrl_b &= ~DAC33_BCLKON; | |
aec242dc | 982 | break; |
28e05d98 PU |
983 | case DAC33_FIFO_MODE7: |
984 | /* | |
985 | * For mode1: | |
986 | * Disable the FIFO bypass (Enable the use of FIFO) | |
987 | * Select Threshold mode | |
988 | * BCLK is only running when data is needed by DAC33 | |
989 | */ | |
990 | fifoctrl_a &= ~DAC33_FBYPAS; | |
991 | fifoctrl_a |= DAC33_FAUTO; | |
eeb309a8 PU |
992 | if (dac33->keep_bclk) |
993 | aictrl_b |= DAC33_BCLKON; | |
994 | else | |
995 | aictrl_b &= ~DAC33_BCLKON; | |
28e05d98 | 996 | break; |
aec242dc PU |
997 | default: |
998 | /* | |
999 | * For FIFO bypass mode: | |
1000 | * Enable the FIFO bypass (Disable the FIFO use) | |
1001 | * Set the BCLK as continous | |
1002 | */ | |
c8bf93f0 | 1003 | fifoctrl_a |= DAC33_FBYPAS; |
aec242dc PU |
1004 | aictrl_b |= DAC33_BCLKON; |
1005 | break; | |
1006 | } | |
c8bf93f0 | 1007 | |
aec242dc | 1008 | dac33_write(codec, DAC33_FIFO_CTRL_A, fifoctrl_a); |
c8bf93f0 | 1009 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); |
aec242dc | 1010 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); |
c8bf93f0 | 1011 | |
6aceabb4 PU |
1012 | /* |
1013 | * BCLK divide ratio | |
1014 | * 0: 1.5 | |
1015 | * 1: 1 | |
1016 | * 2: 2 | |
1017 | * ... | |
1018 | * 254: 254 | |
1019 | * 255: 255 | |
1020 | */ | |
6cd6cede | 1021 | if (dac33->fifo_mode) |
6aceabb4 PU |
1022 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, |
1023 | dac33->burst_bclkdiv); | |
6cd6cede PU |
1024 | else |
1025 | dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 32); | |
c8bf93f0 | 1026 | |
6cd6cede PU |
1027 | switch (dac33->fifo_mode) { |
1028 | case DAC33_FIFO_MODE1: | |
c8bf93f0 PU |
1029 | dac33_write16(codec, DAC33_ATHR_MSB, |
1030 | DAC33_THRREG(dac33->alarm_threshold)); | |
aec242dc | 1031 | break; |
28e05d98 PU |
1032 | case DAC33_FIFO_MODE7: |
1033 | /* | |
1034 | * Configure the threshold levels, and leave 10 sample space | |
1035 | * at the bottom, and also at the top of the FIFO | |
1036 | */ | |
9d7db2b2 | 1037 | dac33_write16(codec, DAC33_UTHR_MSB, DAC33_THRREG(dac33->uthr)); |
4260393e | 1038 | dac33_write16(codec, DAC33_LTHR_MSB, DAC33_THRREG(MODE7_LTHR)); |
28e05d98 | 1039 | break; |
aec242dc | 1040 | default: |
aec242dc | 1041 | break; |
c8bf93f0 PU |
1042 | } |
1043 | ||
1044 | mutex_unlock(&dac33->mutex); | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static void dac33_calculate_times(struct snd_pcm_substream *substream) | |
1050 | { | |
1051 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1052 | struct snd_soc_device *socdev = rtd->socdev; | |
1053 | struct snd_soc_codec *codec = socdev->card->codec; | |
b2c812e2 | 1054 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
f430a27f PU |
1055 | unsigned int period_size = substream->runtime->period_size; |
1056 | unsigned int rate = substream->runtime->rate; | |
c8bf93f0 PU |
1057 | unsigned int nsample_limit; |
1058 | ||
55abb59c PU |
1059 | /* In bypass mode we don't need to calculate */ |
1060 | if (!dac33->fifo_mode) | |
1061 | return; | |
1062 | ||
f57d2cfa PU |
1063 | switch (dac33->fifo_mode) { |
1064 | case DAC33_FIFO_MODE1: | |
f430a27f PU |
1065 | /* Number of samples under i2c latency */ |
1066 | dac33->alarm_threshold = US_TO_SAMPLES(rate, | |
1067 | dac33->mode1_latency); | |
a577b318 PU |
1068 | if (dac33->auto_fifo_config) { |
1069 | if (period_size <= dac33->alarm_threshold) | |
1070 | /* | |
1071 | * Configure nSamaple to number of periods, | |
1072 | * which covers the latency requironment. | |
1073 | */ | |
1074 | dac33->nsample = period_size * | |
1075 | ((dac33->alarm_threshold / period_size) + | |
1076 | (dac33->alarm_threshold % period_size ? | |
1077 | 1 : 0)); | |
1078 | else | |
1079 | dac33->nsample = period_size; | |
1080 | } else { | |
1081 | /* nSample time shall not be shorter than i2c latency */ | |
1082 | dac33->nsample_min = dac33->alarm_threshold; | |
1083 | /* | |
1084 | * nSample should not be bigger than alsa buffer minus | |
1085 | * size of one period to avoid overruns | |
1086 | */ | |
1087 | dac33->nsample_max = substream->runtime->buffer_size - | |
1088 | period_size; | |
1089 | nsample_limit = DAC33_BUFFER_SIZE_SAMPLES - | |
1090 | dac33->alarm_threshold; | |
1091 | if (dac33->nsample_max > nsample_limit) | |
1092 | dac33->nsample_max = nsample_limit; | |
1093 | ||
1094 | /* Correct the nSample if it is outside of the ranges */ | |
1095 | if (dac33->nsample < dac33->nsample_min) | |
1096 | dac33->nsample = dac33->nsample_min; | |
1097 | if (dac33->nsample > dac33->nsample_max) | |
1098 | dac33->nsample = dac33->nsample_max; | |
1099 | } | |
f430a27f | 1100 | |
f57d2cfa PU |
1101 | dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate, |
1102 | dac33->nsample); | |
1103 | dac33->t_stamp1 = 0; | |
1104 | dac33->t_stamp2 = 0; | |
1105 | break; | |
1106 | case DAC33_FIFO_MODE7: | |
a577b318 PU |
1107 | if (dac33->auto_fifo_config) { |
1108 | dac33->uthr = UTHR_FROM_PERIOD_SIZE( | |
1109 | period_size, | |
1110 | rate, | |
1111 | dac33->burst_rate) + 9; | |
1112 | if (dac33->uthr > MODE7_UTHR) | |
1113 | dac33->uthr = MODE7_UTHR; | |
1114 | if (dac33->uthr < (MODE7_LTHR + 10)) | |
1115 | dac33->uthr = (MODE7_LTHR + 10); | |
1116 | } | |
f57d2cfa | 1117 | dac33->mode7_us_to_lthr = |
9d7db2b2 PU |
1118 | SAMPLES_TO_US(substream->runtime->rate, |
1119 | dac33->uthr - MODE7_LTHR + 1); | |
f57d2cfa PU |
1120 | dac33->t_stamp1 = 0; |
1121 | break; | |
1122 | default: | |
1123 | break; | |
1124 | } | |
c8bf93f0 | 1125 | |
c8bf93f0 PU |
1126 | } |
1127 | ||
1128 | static int dac33_pcm_trigger(struct snd_pcm_substream *substream, int cmd, | |
1129 | struct snd_soc_dai *dai) | |
1130 | { | |
1131 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1132 | struct snd_soc_device *socdev = rtd->socdev; | |
1133 | struct snd_soc_codec *codec = socdev->card->codec; | |
b2c812e2 | 1134 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1135 | int ret = 0; |
1136 | ||
1137 | switch (cmd) { | |
1138 | case SNDRV_PCM_TRIGGER_START: | |
1139 | case SNDRV_PCM_TRIGGER_RESUME: | |
1140 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
7427b4b9 | 1141 | if (dac33->fifo_mode) { |
c8bf93f0 PU |
1142 | dac33->state = DAC33_PREFILL; |
1143 | queue_work(dac33->dac33_wq, &dac33->work); | |
1144 | } | |
1145 | break; | |
1146 | case SNDRV_PCM_TRIGGER_STOP: | |
1147 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1148 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
7427b4b9 | 1149 | if (dac33->fifo_mode) { |
c8bf93f0 PU |
1150 | dac33->state = DAC33_FLUSH; |
1151 | queue_work(dac33->dac33_wq, &dac33->work); | |
1152 | } | |
1153 | break; | |
1154 | default: | |
1155 | ret = -EINVAL; | |
1156 | } | |
1157 | ||
1158 | return ret; | |
1159 | } | |
1160 | ||
f57d2cfa PU |
1161 | static snd_pcm_sframes_t dac33_dai_delay( |
1162 | struct snd_pcm_substream *substream, | |
1163 | struct snd_soc_dai *dai) | |
1164 | { | |
1165 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1166 | struct snd_soc_device *socdev = rtd->socdev; | |
1167 | struct snd_soc_codec *codec = socdev->card->codec; | |
1168 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); | |
1169 | unsigned long long t0, t1, t_now; | |
9d7db2b2 | 1170 | unsigned int time_delta, uthr; |
f57d2cfa PU |
1171 | int samples_out, samples_in, samples; |
1172 | snd_pcm_sframes_t delay = 0; | |
1173 | ||
1174 | switch (dac33->fifo_mode) { | |
1175 | case DAC33_FIFO_BYPASS: | |
1176 | break; | |
1177 | case DAC33_FIFO_MODE1: | |
1178 | spin_lock(&dac33->lock); | |
1179 | t0 = dac33->t_stamp1; | |
1180 | t1 = dac33->t_stamp2; | |
1181 | spin_unlock(&dac33->lock); | |
1182 | t_now = ktime_to_us(ktime_get()); | |
1183 | ||
1184 | /* We have not started to fill the FIFO yet, delay is 0 */ | |
1185 | if (!t1) | |
1186 | goto out; | |
1187 | ||
1188 | if (t0 > t1) { | |
1189 | /* | |
1190 | * Phase 1: | |
1191 | * After Alarm threshold, and before nSample write | |
1192 | */ | |
1193 | time_delta = t_now - t0; | |
1194 | samples_out = time_delta ? US_TO_SAMPLES( | |
1195 | substream->runtime->rate, | |
1196 | time_delta) : 0; | |
1197 | ||
1198 | if (likely(dac33->alarm_threshold > samples_out)) | |
1199 | delay = dac33->alarm_threshold - samples_out; | |
1200 | else | |
1201 | delay = 0; | |
1202 | } else if ((t_now - t1) <= dac33->mode1_us_burst) { | |
1203 | /* | |
1204 | * Phase 2: | |
1205 | * After nSample write (during burst operation) | |
1206 | */ | |
1207 | time_delta = t_now - t0; | |
1208 | samples_out = time_delta ? US_TO_SAMPLES( | |
1209 | substream->runtime->rate, | |
1210 | time_delta) : 0; | |
1211 | ||
1212 | time_delta = t_now - t1; | |
1213 | samples_in = time_delta ? US_TO_SAMPLES( | |
1214 | dac33->burst_rate, | |
1215 | time_delta) : 0; | |
1216 | ||
1217 | samples = dac33->alarm_threshold; | |
1218 | samples += (samples_in - samples_out); | |
1219 | ||
1220 | if (likely(samples > 0)) | |
1221 | delay = samples; | |
1222 | else | |
1223 | delay = 0; | |
1224 | } else { | |
1225 | /* | |
1226 | * Phase 3: | |
1227 | * After burst operation, before next alarm threshold | |
1228 | */ | |
1229 | time_delta = t_now - t0; | |
1230 | samples_out = time_delta ? US_TO_SAMPLES( | |
1231 | substream->runtime->rate, | |
1232 | time_delta) : 0; | |
1233 | ||
1234 | samples_in = dac33->nsample; | |
1235 | samples = dac33->alarm_threshold; | |
1236 | samples += (samples_in - samples_out); | |
1237 | ||
1238 | if (likely(samples > 0)) | |
1239 | delay = samples > DAC33_BUFFER_SIZE_SAMPLES ? | |
1240 | DAC33_BUFFER_SIZE_SAMPLES : samples; | |
1241 | else | |
1242 | delay = 0; | |
1243 | } | |
1244 | break; | |
1245 | case DAC33_FIFO_MODE7: | |
1246 | spin_lock(&dac33->lock); | |
1247 | t0 = dac33->t_stamp1; | |
9d7db2b2 | 1248 | uthr = dac33->uthr; |
f57d2cfa PU |
1249 | spin_unlock(&dac33->lock); |
1250 | t_now = ktime_to_us(ktime_get()); | |
1251 | ||
1252 | /* We have not started to fill the FIFO yet, delay is 0 */ | |
1253 | if (!t0) | |
1254 | goto out; | |
1255 | ||
1256 | if (t_now <= t0) { | |
1257 | /* | |
1258 | * Either the timestamps are messed or equal. Report | |
1259 | * maximum delay | |
1260 | */ | |
9d7db2b2 | 1261 | delay = uthr; |
f57d2cfa PU |
1262 | goto out; |
1263 | } | |
1264 | ||
1265 | time_delta = t_now - t0; | |
1266 | if (time_delta <= dac33->mode7_us_to_lthr) { | |
1267 | /* | |
1268 | * Phase 1: | |
1269 | * After burst (draining phase) | |
1270 | */ | |
1271 | samples_out = US_TO_SAMPLES( | |
1272 | substream->runtime->rate, | |
1273 | time_delta); | |
1274 | ||
9d7db2b2 PU |
1275 | if (likely(uthr > samples_out)) |
1276 | delay = uthr - samples_out; | |
f57d2cfa PU |
1277 | else |
1278 | delay = 0; | |
1279 | } else { | |
1280 | /* | |
1281 | * Phase 2: | |
1282 | * During burst operation | |
1283 | */ | |
1284 | time_delta = time_delta - dac33->mode7_us_to_lthr; | |
1285 | ||
1286 | samples_out = US_TO_SAMPLES( | |
1287 | substream->runtime->rate, | |
1288 | time_delta); | |
1289 | samples_in = US_TO_SAMPLES( | |
1290 | dac33->burst_rate, | |
1291 | time_delta); | |
1292 | delay = MODE7_LTHR + samples_in - samples_out; | |
1293 | ||
9d7db2b2 PU |
1294 | if (unlikely(delay > uthr)) |
1295 | delay = uthr; | |
f57d2cfa PU |
1296 | } |
1297 | break; | |
1298 | default: | |
1299 | dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", | |
1300 | dac33->fifo_mode); | |
1301 | break; | |
1302 | } | |
1303 | out: | |
1304 | return delay; | |
1305 | } | |
1306 | ||
c8bf93f0 PU |
1307 | static int dac33_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
1308 | int clk_id, unsigned int freq, int dir) | |
1309 | { | |
1310 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 1311 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1312 | u8 ioc_reg, asrcb_reg; |
1313 | ||
1314 | ioc_reg = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); | |
1315 | asrcb_reg = dac33_read_reg_cache(codec, DAC33_ASRC_CTRL_B); | |
1316 | switch (clk_id) { | |
1317 | case TLV320DAC33_MCLK: | |
1318 | ioc_reg |= DAC33_REFSEL; | |
1319 | asrcb_reg |= DAC33_SRCREFSEL; | |
1320 | break; | |
1321 | case TLV320DAC33_SLEEPCLK: | |
1322 | ioc_reg &= ~DAC33_REFSEL; | |
1323 | asrcb_reg &= ~DAC33_SRCREFSEL; | |
1324 | break; | |
1325 | default: | |
1326 | dev_err(codec->dev, "Invalid clock ID (%d)\n", clk_id); | |
1327 | break; | |
1328 | } | |
1329 | dac33->refclk = freq; | |
1330 | ||
1331 | dac33_write_reg_cache(codec, DAC33_INT_OSC_CTRL, ioc_reg); | |
1332 | dac33_write_reg_cache(codec, DAC33_ASRC_CTRL_B, asrcb_reg); | |
1333 | ||
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | static int dac33_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
1338 | unsigned int fmt) | |
1339 | { | |
1340 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 1341 | struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1342 | u8 aictrl_a, aictrl_b; |
1343 | ||
1344 | aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); | |
1345 | aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); | |
1346 | /* set master/slave audio interface */ | |
1347 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1348 | case SND_SOC_DAIFMT_CBM_CFM: | |
1349 | /* Codec Master */ | |
1350 | aictrl_a |= (DAC33_MSBCLK | DAC33_MSWCLK); | |
1351 | break; | |
1352 | case SND_SOC_DAIFMT_CBS_CFS: | |
1353 | /* Codec Slave */ | |
adcb8bc0 PU |
1354 | if (dac33->fifo_mode) { |
1355 | dev_err(codec->dev, "FIFO mode requires master mode\n"); | |
1356 | return -EINVAL; | |
1357 | } else | |
1358 | aictrl_a &= ~(DAC33_MSBCLK | DAC33_MSWCLK); | |
c8bf93f0 PU |
1359 | break; |
1360 | default: | |
1361 | return -EINVAL; | |
1362 | } | |
1363 | ||
1364 | aictrl_a &= ~DAC33_AFMT_MASK; | |
1365 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
1366 | case SND_SOC_DAIFMT_I2S: | |
1367 | aictrl_a |= DAC33_AFMT_I2S; | |
1368 | break; | |
1369 | case SND_SOC_DAIFMT_DSP_A: | |
1370 | aictrl_a |= DAC33_AFMT_DSP; | |
1371 | aictrl_b &= ~DAC33_DATA_DELAY_MASK; | |
44f497b4 | 1372 | aictrl_b |= DAC33_DATA_DELAY(0); |
c8bf93f0 PU |
1373 | break; |
1374 | case SND_SOC_DAIFMT_RIGHT_J: | |
1375 | aictrl_a |= DAC33_AFMT_RIGHT_J; | |
1376 | break; | |
1377 | case SND_SOC_DAIFMT_LEFT_J: | |
1378 | aictrl_a |= DAC33_AFMT_LEFT_J; | |
1379 | break; | |
1380 | default: | |
1381 | dev_err(codec->dev, "Unsupported format (%u)\n", | |
1382 | fmt & SND_SOC_DAIFMT_FORMAT_MASK); | |
1383 | return -EINVAL; | |
1384 | } | |
1385 | ||
1386 | dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); | |
1387 | dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); | |
1388 | ||
1389 | return 0; | |
1390 | } | |
1391 | ||
c8bf93f0 PU |
1392 | static int dac33_soc_probe(struct platform_device *pdev) |
1393 | { | |
1394 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1395 | struct snd_soc_codec *codec; | |
1396 | struct tlv320dac33_priv *dac33; | |
1397 | int ret = 0; | |
1398 | ||
1399 | BUG_ON(!tlv320dac33_codec); | |
1400 | ||
1401 | codec = tlv320dac33_codec; | |
1402 | socdev->card->codec = codec; | |
b2c812e2 | 1403 | dac33 = snd_soc_codec_get_drvdata(codec); |
c8bf93f0 PU |
1404 | |
1405 | /* register pcms */ | |
1406 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
1407 | if (ret < 0) { | |
1408 | dev_err(codec->dev, "failed to create pcms\n"); | |
1409 | goto pcm_err; | |
1410 | } | |
1411 | ||
1412 | snd_soc_add_controls(codec, dac33_snd_controls, | |
1413 | ARRAY_SIZE(dac33_snd_controls)); | |
a577b318 PU |
1414 | /* Only add the FIFO controls, if we have valid IRQ number */ |
1415 | if (dac33->irq >= 0) { | |
1416 | snd_soc_add_controls(codec, dac33_mode_snd_controls, | |
1417 | ARRAY_SIZE(dac33_mode_snd_controls)); | |
1418 | /* FIFO usage controls only, if autoio config is not selected */ | |
1419 | if (!dac33->auto_fifo_config) | |
1420 | snd_soc_add_controls(codec, dac33_fifo_snd_controls, | |
1421 | ARRAY_SIZE(dac33_fifo_snd_controls)); | |
1422 | } | |
c8bf93f0 PU |
1423 | |
1424 | dac33_add_widgets(codec); | |
1425 | ||
c8bf93f0 | 1426 | return 0; |
fe3e78e0 | 1427 | |
c8bf93f0 PU |
1428 | pcm_err: |
1429 | dac33_hard_power(codec, 0); | |
1430 | return ret; | |
1431 | } | |
1432 | ||
1433 | static int dac33_soc_remove(struct platform_device *pdev) | |
1434 | { | |
1435 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1436 | struct snd_soc_codec *codec = socdev->card->codec; | |
1437 | ||
1438 | dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
1439 | ||
1440 | snd_soc_free_pcms(socdev); | |
1441 | snd_soc_dapm_free(socdev); | |
1442 | ||
1443 | return 0; | |
1444 | } | |
1445 | ||
1446 | static int dac33_soc_suspend(struct platform_device *pdev, pm_message_t state) | |
1447 | { | |
1448 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1449 | struct snd_soc_codec *codec = socdev->card->codec; | |
1450 | ||
1451 | dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
1452 | ||
1453 | return 0; | |
1454 | } | |
1455 | ||
1456 | static int dac33_soc_resume(struct platform_device *pdev) | |
1457 | { | |
1458 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1459 | struct snd_soc_codec *codec = socdev->card->codec; | |
1460 | ||
1461 | dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
c8bf93f0 PU |
1462 | |
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | struct snd_soc_codec_device soc_codec_dev_tlv320dac33 = { | |
1467 | .probe = dac33_soc_probe, | |
1468 | .remove = dac33_soc_remove, | |
1469 | .suspend = dac33_soc_suspend, | |
1470 | .resume = dac33_soc_resume, | |
1471 | }; | |
1472 | EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320dac33); | |
1473 | ||
1474 | #define DAC33_RATES (SNDRV_PCM_RATE_44100 | \ | |
1475 | SNDRV_PCM_RATE_48000) | |
1476 | #define DAC33_FORMATS SNDRV_PCM_FMTBIT_S16_LE | |
1477 | ||
1478 | static struct snd_soc_dai_ops dac33_dai_ops = { | |
0b61d2b9 | 1479 | .startup = dac33_startup, |
c8bf93f0 PU |
1480 | .shutdown = dac33_shutdown, |
1481 | .hw_params = dac33_hw_params, | |
c8bf93f0 | 1482 | .trigger = dac33_pcm_trigger, |
f57d2cfa | 1483 | .delay = dac33_dai_delay, |
c8bf93f0 PU |
1484 | .set_sysclk = dac33_set_dai_sysclk, |
1485 | .set_fmt = dac33_set_dai_fmt, | |
1486 | }; | |
1487 | ||
1488 | struct snd_soc_dai dac33_dai = { | |
1489 | .name = "tlv320dac33", | |
1490 | .playback = { | |
1491 | .stream_name = "Playback", | |
1492 | .channels_min = 2, | |
1493 | .channels_max = 2, | |
1494 | .rates = DAC33_RATES, | |
1495 | .formats = DAC33_FORMATS,}, | |
1496 | .ops = &dac33_dai_ops, | |
1497 | }; | |
1498 | EXPORT_SYMBOL_GPL(dac33_dai); | |
1499 | ||
735fe4cf MB |
1500 | static int __devinit dac33_i2c_probe(struct i2c_client *client, |
1501 | const struct i2c_device_id *id) | |
c8bf93f0 PU |
1502 | { |
1503 | struct tlv320dac33_platform_data *pdata; | |
1504 | struct tlv320dac33_priv *dac33; | |
1505 | struct snd_soc_codec *codec; | |
3a7aaed7 | 1506 | int ret, i; |
c8bf93f0 PU |
1507 | |
1508 | if (client->dev.platform_data == NULL) { | |
1509 | dev_err(&client->dev, "Platform data not set\n"); | |
1510 | return -ENODEV; | |
1511 | } | |
1512 | pdata = client->dev.platform_data; | |
1513 | ||
1514 | dac33 = kzalloc(sizeof(struct tlv320dac33_priv), GFP_KERNEL); | |
1515 | if (dac33 == NULL) | |
1516 | return -ENOMEM; | |
1517 | ||
1518 | codec = &dac33->codec; | |
b2c812e2 | 1519 | snd_soc_codec_set_drvdata(codec, dac33); |
c8bf93f0 PU |
1520 | codec->control_data = client; |
1521 | ||
1522 | mutex_init(&codec->mutex); | |
1523 | mutex_init(&dac33->mutex); | |
f57d2cfa | 1524 | spin_lock_init(&dac33->lock); |
c8bf93f0 PU |
1525 | INIT_LIST_HEAD(&codec->dapm_widgets); |
1526 | INIT_LIST_HEAD(&codec->dapm_paths); | |
1527 | ||
1528 | codec->name = "tlv320dac33"; | |
1529 | codec->owner = THIS_MODULE; | |
1530 | codec->read = dac33_read_reg_cache; | |
1531 | codec->write = dac33_write_locked; | |
1532 | codec->hw_write = (hw_write_t) i2c_master_send; | |
1533 | codec->bias_level = SND_SOC_BIAS_OFF; | |
1534 | codec->set_bias_level = dac33_set_bias_level; | |
ad05c03b | 1535 | codec->idle_bias_off = 1; |
c8bf93f0 PU |
1536 | codec->dai = &dac33_dai; |
1537 | codec->num_dai = 1; | |
1538 | codec->reg_cache_size = ARRAY_SIZE(dac33_reg); | |
1539 | codec->reg_cache = kmemdup(dac33_reg, ARRAY_SIZE(dac33_reg), | |
1540 | GFP_KERNEL); | |
1541 | if (codec->reg_cache == NULL) { | |
1542 | ret = -ENOMEM; | |
1543 | goto error_reg; | |
1544 | } | |
1545 | ||
1546 | i2c_set_clientdata(client, dac33); | |
1547 | ||
1548 | dac33->power_gpio = pdata->power_gpio; | |
6aceabb4 | 1549 | dac33->burst_bclkdiv = pdata->burst_bclkdiv; |
76f47127 PU |
1550 | /* Pre calculate the burst rate */ |
1551 | dac33->burst_rate = BURST_BASEFREQ_HZ / dac33->burst_bclkdiv / 32; | |
eeb309a8 | 1552 | dac33->keep_bclk = pdata->keep_bclk; |
a577b318 | 1553 | dac33->auto_fifo_config = pdata->auto_fifo_config; |
f430a27f PU |
1554 | dac33->mode1_latency = pdata->mode1_latency; |
1555 | if (!dac33->mode1_latency) | |
1556 | dac33->mode1_latency = 10000; /* 10ms */ | |
c8bf93f0 PU |
1557 | dac33->irq = client->irq; |
1558 | dac33->nsample = NSAMPLE_MAX; | |
55abb59c | 1559 | dac33->nsample_max = NSAMPLE_MAX; |
9d7db2b2 | 1560 | dac33->uthr = MODE7_UTHR; |
c8bf93f0 | 1561 | /* Disable FIFO use by default */ |
7427b4b9 | 1562 | dac33->fifo_mode = DAC33_FIFO_BYPASS; |
c8bf93f0 PU |
1563 | |
1564 | tlv320dac33_codec = codec; | |
1565 | ||
1566 | codec->dev = &client->dev; | |
1567 | dac33_dai.dev = codec->dev; | |
1568 | ||
1569 | /* Check if the reset GPIO number is valid and request it */ | |
1570 | if (dac33->power_gpio >= 0) { | |
1571 | ret = gpio_request(dac33->power_gpio, "tlv320dac33 reset"); | |
1572 | if (ret < 0) { | |
1573 | dev_err(codec->dev, | |
1574 | "Failed to request reset GPIO (%d)\n", | |
1575 | dac33->power_gpio); | |
1576 | snd_soc_unregister_dai(&dac33_dai); | |
1577 | snd_soc_unregister_codec(codec); | |
1578 | goto error_gpio; | |
1579 | } | |
1580 | gpio_direction_output(dac33->power_gpio, 0); | |
c8bf93f0 PU |
1581 | } |
1582 | ||
1583 | /* Check if the IRQ number is valid and request it */ | |
1584 | if (dac33->irq >= 0) { | |
1585 | ret = request_irq(dac33->irq, dac33_interrupt_handler, | |
1586 | IRQF_TRIGGER_RISING | IRQF_DISABLED, | |
1587 | codec->name, codec); | |
1588 | if (ret < 0) { | |
1589 | dev_err(codec->dev, "Could not request IRQ%d (%d)\n", | |
1590 | dac33->irq, ret); | |
1591 | dac33->irq = -1; | |
1592 | } | |
1593 | if (dac33->irq != -1) { | |
1594 | /* Setup work queue */ | |
74ea23aa PU |
1595 | dac33->dac33_wq = |
1596 | create_singlethread_workqueue("tlv320dac33"); | |
c8bf93f0 PU |
1597 | if (dac33->dac33_wq == NULL) { |
1598 | free_irq(dac33->irq, &dac33->codec); | |
1599 | ret = -ENOMEM; | |
1600 | goto error_wq; | |
1601 | } | |
1602 | ||
1603 | INIT_WORK(&dac33->work, dac33_work); | |
1604 | } | |
1605 | } | |
1606 | ||
3a7aaed7 IK |
1607 | for (i = 0; i < ARRAY_SIZE(dac33->supplies); i++) |
1608 | dac33->supplies[i].supply = dac33_supply_names[i]; | |
1609 | ||
1610 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(dac33->supplies), | |
1611 | dac33->supplies); | |
1612 | ||
1613 | if (ret != 0) { | |
1614 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
1615 | goto err_get; | |
1616 | } | |
1617 | ||
239fe55c PU |
1618 | /* Read the tlv320dac33 ID registers */ |
1619 | ret = dac33_hard_power(codec, 1); | |
3a7aaed7 | 1620 | if (ret != 0) { |
239fe55c PU |
1621 | dev_err(codec->dev, "Failed to power up codec: %d\n", ret); |
1622 | goto error_codec; | |
3a7aaed7 | 1623 | } |
239fe55c PU |
1624 | dac33_read_id(codec); |
1625 | dac33_hard_power(codec, 0); | |
3a7aaed7 | 1626 | |
c8bf93f0 PU |
1627 | ret = snd_soc_register_codec(codec); |
1628 | if (ret != 0) { | |
1629 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
1630 | goto error_codec; | |
1631 | } | |
1632 | ||
1633 | ret = snd_soc_register_dai(&dac33_dai); | |
1634 | if (ret != 0) { | |
1635 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
1636 | snd_soc_unregister_codec(codec); | |
1637 | goto error_codec; | |
1638 | } | |
1639 | ||
c8bf93f0 PU |
1640 | return ret; |
1641 | ||
1642 | error_codec: | |
3a7aaed7 IK |
1643 | regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); |
1644 | err_get: | |
c8bf93f0 PU |
1645 | if (dac33->irq >= 0) { |
1646 | free_irq(dac33->irq, &dac33->codec); | |
1647 | destroy_workqueue(dac33->dac33_wq); | |
1648 | } | |
1649 | error_wq: | |
1650 | if (dac33->power_gpio >= 0) | |
1651 | gpio_free(dac33->power_gpio); | |
1652 | error_gpio: | |
1653 | kfree(codec->reg_cache); | |
1654 | error_reg: | |
1655 | tlv320dac33_codec = NULL; | |
1656 | kfree(dac33); | |
1657 | ||
1658 | return ret; | |
1659 | } | |
1660 | ||
735fe4cf | 1661 | static int __devexit dac33_i2c_remove(struct i2c_client *client) |
c8bf93f0 PU |
1662 | { |
1663 | struct tlv320dac33_priv *dac33; | |
1664 | ||
1665 | dac33 = i2c_get_clientdata(client); | |
239fe55c PU |
1666 | |
1667 | if (unlikely(dac33->chip_power)) | |
1668 | dac33_hard_power(&dac33->codec, 0); | |
c8bf93f0 PU |
1669 | |
1670 | if (dac33->power_gpio >= 0) | |
1671 | gpio_free(dac33->power_gpio); | |
1672 | if (dac33->irq >= 0) | |
1673 | free_irq(dac33->irq, &dac33->codec); | |
1674 | ||
3a7aaed7 IK |
1675 | regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); |
1676 | ||
c8bf93f0 PU |
1677 | destroy_workqueue(dac33->dac33_wq); |
1678 | snd_soc_unregister_dai(&dac33_dai); | |
1679 | snd_soc_unregister_codec(&dac33->codec); | |
1680 | kfree(dac33->codec.reg_cache); | |
1681 | kfree(dac33); | |
1682 | tlv320dac33_codec = NULL; | |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
1687 | static const struct i2c_device_id tlv320dac33_i2c_id[] = { | |
1688 | { | |
1689 | .name = "tlv320dac33", | |
1690 | .driver_data = 0, | |
1691 | }, | |
1692 | { }, | |
1693 | }; | |
1694 | ||
1695 | static struct i2c_driver tlv320dac33_i2c_driver = { | |
1696 | .driver = { | |
1697 | .name = "tlv320dac33", | |
1698 | .owner = THIS_MODULE, | |
1699 | }, | |
1700 | .probe = dac33_i2c_probe, | |
1701 | .remove = __devexit_p(dac33_i2c_remove), | |
1702 | .id_table = tlv320dac33_i2c_id, | |
1703 | }; | |
1704 | ||
1705 | static int __init dac33_module_init(void) | |
1706 | { | |
1707 | int r; | |
1708 | r = i2c_add_driver(&tlv320dac33_i2c_driver); | |
1709 | if (r < 0) { | |
1710 | printk(KERN_ERR "DAC33: driver registration failed\n"); | |
1711 | return r; | |
1712 | } | |
1713 | return 0; | |
1714 | } | |
1715 | module_init(dac33_module_init); | |
1716 | ||
1717 | static void __exit dac33_module_exit(void) | |
1718 | { | |
1719 | i2c_del_driver(&tlv320dac33_i2c_driver); | |
1720 | } | |
1721 | module_exit(dac33_module_exit); | |
1722 | ||
1723 | ||
1724 | MODULE_DESCRIPTION("ASoC TLV320DAC33 codec driver"); | |
1725 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@nokia.com>"); | |
1726 | MODULE_LICENSE("GPL"); |