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34ca27f3 AP |
1 | /* |
2 | * Nuvoton NAU8825 audio codec driver | |
3 | * | |
4 | * Copyright 2015 Google Chromium project. | |
5 | * Author: Anatol Pomozov <anatol@chromium.org> | |
6 | * Copyright 2015 Nuvoton Technology Corp. | |
7 | * Co-author: Meng-Huang Kuo <mhkuo@nuvoton.com> | |
8 | * | |
9 | * Licensed under the GPL-2. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/delay.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/i2c.h> | |
16 | #include <linux/regmap.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/clk.h> | |
b3681308 | 19 | #include <linux/acpi.h> |
c86ba612 | 20 | #include <linux/math64.h> |
b50455fa | 21 | #include <linux/semaphore.h> |
34ca27f3 AP |
22 | |
23 | #include <sound/initval.h> | |
24 | #include <sound/tlv.h> | |
25 | #include <sound/core.h> | |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
29 | #include <sound/jack.h> | |
30 | ||
31 | ||
32 | #include "nau8825.h" | |
33 | ||
2ec30f60 JH |
34 | |
35 | #define NUVOTON_CODEC_DAI "nau8825-hifi" | |
36 | ||
c86ba612 | 37 | #define NAU_FREF_MAX 13500000 |
407c71b6 | 38 | #define NAU_FVCO_MAX 124000000 |
c86ba612 BZ |
39 | #define NAU_FVCO_MIN 90000000 |
40 | ||
b50455fa JH |
41 | /* cross talk suppression detection */ |
42 | #define LOG10_MAGIC 646456993 | |
43 | #define GAIN_AUGMENT 22500 | |
44 | #define SIDETONE_BASE 207000 | |
45 | ||
46 | ||
2ec30f60 JH |
47 | static int nau8825_configure_sysclk(struct nau8825 *nau8825, |
48 | int clk_id, unsigned int freq); | |
49 | ||
c86ba612 BZ |
50 | struct nau8825_fll { |
51 | int mclk_src; | |
52 | int ratio; | |
53 | int fll_frac; | |
54 | int fll_int; | |
55 | int clk_ref_div; | |
56 | }; | |
57 | ||
58 | struct nau8825_fll_attr { | |
59 | unsigned int param; | |
60 | unsigned int val; | |
61 | }; | |
62 | ||
63 | /* scaling for mclk from sysclk_src output */ | |
64 | static const struct nau8825_fll_attr mclk_src_scaling[] = { | |
65 | { 1, 0x0 }, | |
66 | { 2, 0x2 }, | |
67 | { 4, 0x3 }, | |
68 | { 8, 0x4 }, | |
69 | { 16, 0x5 }, | |
70 | { 32, 0x6 }, | |
71 | { 3, 0x7 }, | |
72 | { 6, 0xa }, | |
73 | { 12, 0xb }, | |
74 | { 24, 0xc }, | |
75 | { 48, 0xd }, | |
76 | { 96, 0xe }, | |
77 | { 5, 0xf }, | |
78 | }; | |
79 | ||
80 | /* ratio for input clk freq */ | |
81 | static const struct nau8825_fll_attr fll_ratio[] = { | |
82 | { 512000, 0x01 }, | |
83 | { 256000, 0x02 }, | |
84 | { 128000, 0x04 }, | |
85 | { 64000, 0x08 }, | |
86 | { 32000, 0x10 }, | |
87 | { 8000, 0x20 }, | |
88 | { 4000, 0x40 }, | |
89 | }; | |
90 | ||
91 | static const struct nau8825_fll_attr fll_pre_scalar[] = { | |
92 | { 1, 0x0 }, | |
93 | { 2, 0x1 }, | |
94 | { 4, 0x2 }, | |
95 | { 8, 0x3 }, | |
96 | }; | |
97 | ||
34ca27f3 AP |
98 | static const struct reg_default nau8825_reg_defaults[] = { |
99 | { NAU8825_REG_ENA_CTRL, 0x00ff }, | |
45d5eb3a | 100 | { NAU8825_REG_IIC_ADDR_SET, 0x0 }, |
34ca27f3 AP |
101 | { NAU8825_REG_CLK_DIVIDER, 0x0050 }, |
102 | { NAU8825_REG_FLL1, 0x0 }, | |
103 | { NAU8825_REG_FLL2, 0x3126 }, | |
104 | { NAU8825_REG_FLL3, 0x0008 }, | |
105 | { NAU8825_REG_FLL4, 0x0010 }, | |
106 | { NAU8825_REG_FLL5, 0x0 }, | |
107 | { NAU8825_REG_FLL6, 0x6000 }, | |
108 | { NAU8825_REG_FLL_VCO_RSV, 0xf13c }, | |
109 | { NAU8825_REG_HSD_CTRL, 0x000c }, | |
110 | { NAU8825_REG_JACK_DET_CTRL, 0x0 }, | |
111 | { NAU8825_REG_INTERRUPT_MASK, 0x0 }, | |
112 | { NAU8825_REG_INTERRUPT_DIS_CTRL, 0xffff }, | |
113 | { NAU8825_REG_SAR_CTRL, 0x0015 }, | |
114 | { NAU8825_REG_KEYDET_CTRL, 0x0110 }, | |
115 | { NAU8825_REG_VDET_THRESHOLD_1, 0x0 }, | |
116 | { NAU8825_REG_VDET_THRESHOLD_2, 0x0 }, | |
117 | { NAU8825_REG_VDET_THRESHOLD_3, 0x0 }, | |
118 | { NAU8825_REG_VDET_THRESHOLD_4, 0x0 }, | |
119 | { NAU8825_REG_GPIO34_CTRL, 0x0 }, | |
120 | { NAU8825_REG_GPIO12_CTRL, 0x0 }, | |
121 | { NAU8825_REG_TDM_CTRL, 0x0 }, | |
122 | { NAU8825_REG_I2S_PCM_CTRL1, 0x000b }, | |
123 | { NAU8825_REG_I2S_PCM_CTRL2, 0x8010 }, | |
124 | { NAU8825_REG_LEFT_TIME_SLOT, 0x0 }, | |
125 | { NAU8825_REG_RIGHT_TIME_SLOT, 0x0 }, | |
126 | { NAU8825_REG_BIQ_CTRL, 0x0 }, | |
127 | { NAU8825_REG_BIQ_COF1, 0x0 }, | |
128 | { NAU8825_REG_BIQ_COF2, 0x0 }, | |
129 | { NAU8825_REG_BIQ_COF3, 0x0 }, | |
130 | { NAU8825_REG_BIQ_COF4, 0x0 }, | |
131 | { NAU8825_REG_BIQ_COF5, 0x0 }, | |
132 | { NAU8825_REG_BIQ_COF6, 0x0 }, | |
133 | { NAU8825_REG_BIQ_COF7, 0x0 }, | |
134 | { NAU8825_REG_BIQ_COF8, 0x0 }, | |
135 | { NAU8825_REG_BIQ_COF9, 0x0 }, | |
136 | { NAU8825_REG_BIQ_COF10, 0x0 }, | |
137 | { NAU8825_REG_ADC_RATE, 0x0010 }, | |
138 | { NAU8825_REG_DAC_CTRL1, 0x0001 }, | |
139 | { NAU8825_REG_DAC_CTRL2, 0x0 }, | |
140 | { NAU8825_REG_DAC_DGAIN_CTRL, 0x0 }, | |
141 | { NAU8825_REG_ADC_DGAIN_CTRL, 0x00cf }, | |
142 | { NAU8825_REG_MUTE_CTRL, 0x0 }, | |
143 | { NAU8825_REG_HSVOL_CTRL, 0x0 }, | |
144 | { NAU8825_REG_DACL_CTRL, 0x02cf }, | |
145 | { NAU8825_REG_DACR_CTRL, 0x00cf }, | |
146 | { NAU8825_REG_ADC_DRC_KNEE_IP12, 0x1486 }, | |
147 | { NAU8825_REG_ADC_DRC_KNEE_IP34, 0x0f12 }, | |
148 | { NAU8825_REG_ADC_DRC_SLOPES, 0x25ff }, | |
149 | { NAU8825_REG_ADC_DRC_ATKDCY, 0x3457 }, | |
150 | { NAU8825_REG_DAC_DRC_KNEE_IP12, 0x1486 }, | |
151 | { NAU8825_REG_DAC_DRC_KNEE_IP34, 0x0f12 }, | |
152 | { NAU8825_REG_DAC_DRC_SLOPES, 0x25f9 }, | |
153 | { NAU8825_REG_DAC_DRC_ATKDCY, 0x3457 }, | |
154 | { NAU8825_REG_IMM_MODE_CTRL, 0x0 }, | |
155 | { NAU8825_REG_CLASSG_CTRL, 0x0 }, | |
156 | { NAU8825_REG_OPT_EFUSE_CTRL, 0x0 }, | |
157 | { NAU8825_REG_MISC_CTRL, 0x0 }, | |
158 | { NAU8825_REG_BIAS_ADJ, 0x0 }, | |
159 | { NAU8825_REG_TRIM_SETTINGS, 0x0 }, | |
160 | { NAU8825_REG_ANALOG_CONTROL_1, 0x0 }, | |
161 | { NAU8825_REG_ANALOG_CONTROL_2, 0x0 }, | |
162 | { NAU8825_REG_ANALOG_ADC_1, 0x0011 }, | |
163 | { NAU8825_REG_ANALOG_ADC_2, 0x0020 }, | |
164 | { NAU8825_REG_RDAC, 0x0008 }, | |
165 | { NAU8825_REG_MIC_BIAS, 0x0006 }, | |
166 | { NAU8825_REG_BOOST, 0x0 }, | |
167 | { NAU8825_REG_FEPGA, 0x0 }, | |
168 | { NAU8825_REG_POWER_UP_CONTROL, 0x0 }, | |
169 | { NAU8825_REG_CHARGE_PUMP, 0x0 }, | |
170 | }; | |
171 | ||
b50455fa JH |
172 | /* register backup table when cross talk detection */ |
173 | static struct reg_default nau8825_xtalk_baktab[] = { | |
174 | { NAU8825_REG_ADC_DGAIN_CTRL, 0 }, | |
175 | { NAU8825_REG_HSVOL_CTRL, 0 }, | |
176 | { NAU8825_REG_DACL_CTRL, 0 }, | |
177 | { NAU8825_REG_DACR_CTRL, 0 }, | |
178 | }; | |
179 | ||
180 | static const unsigned short logtable[256] = { | |
181 | 0x0000, 0x0171, 0x02e0, 0x044e, 0x05ba, 0x0725, 0x088e, 0x09f7, | |
182 | 0x0b5d, 0x0cc3, 0x0e27, 0x0f8a, 0x10eb, 0x124b, 0x13aa, 0x1508, | |
183 | 0x1664, 0x17bf, 0x1919, 0x1a71, 0x1bc8, 0x1d1e, 0x1e73, 0x1fc6, | |
184 | 0x2119, 0x226a, 0x23ba, 0x2508, 0x2656, 0x27a2, 0x28ed, 0x2a37, | |
185 | 0x2b80, 0x2cc8, 0x2e0f, 0x2f54, 0x3098, 0x31dc, 0x331e, 0x345f, | |
186 | 0x359f, 0x36de, 0x381b, 0x3958, 0x3a94, 0x3bce, 0x3d08, 0x3e41, | |
187 | 0x3f78, 0x40af, 0x41e4, 0x4319, 0x444c, 0x457f, 0x46b0, 0x47e1, | |
188 | 0x4910, 0x4a3f, 0x4b6c, 0x4c99, 0x4dc5, 0x4eef, 0x5019, 0x5142, | |
189 | 0x526a, 0x5391, 0x54b7, 0x55dc, 0x5700, 0x5824, 0x5946, 0x5a68, | |
190 | 0x5b89, 0x5ca8, 0x5dc7, 0x5ee5, 0x6003, 0x611f, 0x623a, 0x6355, | |
191 | 0x646f, 0x6588, 0x66a0, 0x67b7, 0x68ce, 0x69e4, 0x6af8, 0x6c0c, | |
192 | 0x6d20, 0x6e32, 0x6f44, 0x7055, 0x7165, 0x7274, 0x7383, 0x7490, | |
193 | 0x759d, 0x76aa, 0x77b5, 0x78c0, 0x79ca, 0x7ad3, 0x7bdb, 0x7ce3, | |
194 | 0x7dea, 0x7ef0, 0x7ff6, 0x80fb, 0x81ff, 0x8302, 0x8405, 0x8507, | |
195 | 0x8608, 0x8709, 0x8809, 0x8908, 0x8a06, 0x8b04, 0x8c01, 0x8cfe, | |
196 | 0x8dfa, 0x8ef5, 0x8fef, 0x90e9, 0x91e2, 0x92db, 0x93d2, 0x94ca, | |
197 | 0x95c0, 0x96b6, 0x97ab, 0x98a0, 0x9994, 0x9a87, 0x9b7a, 0x9c6c, | |
198 | 0x9d5e, 0x9e4f, 0x9f3f, 0xa02e, 0xa11e, 0xa20c, 0xa2fa, 0xa3e7, | |
199 | 0xa4d4, 0xa5c0, 0xa6ab, 0xa796, 0xa881, 0xa96a, 0xaa53, 0xab3c, | |
200 | 0xac24, 0xad0c, 0xadf2, 0xaed9, 0xafbe, 0xb0a4, 0xb188, 0xb26c, | |
201 | 0xb350, 0xb433, 0xb515, 0xb5f7, 0xb6d9, 0xb7ba, 0xb89a, 0xb97a, | |
202 | 0xba59, 0xbb38, 0xbc16, 0xbcf4, 0xbdd1, 0xbead, 0xbf8a, 0xc065, | |
203 | 0xc140, 0xc21b, 0xc2f5, 0xc3cf, 0xc4a8, 0xc580, 0xc658, 0xc730, | |
204 | 0xc807, 0xc8de, 0xc9b4, 0xca8a, 0xcb5f, 0xcc34, 0xcd08, 0xcddc, | |
205 | 0xceaf, 0xcf82, 0xd054, 0xd126, 0xd1f7, 0xd2c8, 0xd399, 0xd469, | |
206 | 0xd538, 0xd607, 0xd6d6, 0xd7a4, 0xd872, 0xd93f, 0xda0c, 0xdad9, | |
207 | 0xdba5, 0xdc70, 0xdd3b, 0xde06, 0xded0, 0xdf9a, 0xe063, 0xe12c, | |
208 | 0xe1f5, 0xe2bd, 0xe385, 0xe44c, 0xe513, 0xe5d9, 0xe69f, 0xe765, | |
209 | 0xe82a, 0xe8ef, 0xe9b3, 0xea77, 0xeb3b, 0xebfe, 0xecc1, 0xed83, | |
210 | 0xee45, 0xef06, 0xefc8, 0xf088, 0xf149, 0xf209, 0xf2c8, 0xf387, | |
211 | 0xf446, 0xf505, 0xf5c3, 0xf680, 0xf73e, 0xf7fb, 0xf8b7, 0xf973, | |
212 | 0xfa2f, 0xfaea, 0xfba5, 0xfc60, 0xfd1a, 0xfdd4, 0xfe8e, 0xff47 | |
213 | }; | |
214 | ||
b50455fa JH |
215 | /** |
216 | * nau8825_sema_acquire - acquire the semaphore of nau88l25 | |
217 | * @nau8825: component to register the codec private data with | |
218 | * @timeout: how long in jiffies to wait before failure or zero to wait | |
219 | * until release | |
220 | * | |
221 | * Attempts to acquire the semaphore with number of jiffies. If no more | |
222 | * tasks are allowed to acquire the semaphore, calling this function will | |
223 | * put the task to sleep. If the semaphore is not released within the | |
224 | * specified number of jiffies, this function returns. | |
225 | * Acquires the semaphore without jiffies. If no more tasks are allowed | |
226 | * to acquire the semaphore, calling this function will put the task to | |
227 | * sleep until the semaphore is released. | |
06746c67 JH |
228 | * If the semaphore is not released within the specified number of jiffies, |
229 | * this function returns -ETIME. | |
230 | * If the sleep is interrupted by a signal, this function will return -EINTR. | |
231 | * It returns 0 if the semaphore was acquired successfully. | |
b50455fa | 232 | */ |
06746c67 | 233 | static int nau8825_sema_acquire(struct nau8825 *nau8825, long timeout) |
b50455fa JH |
234 | { |
235 | int ret; | |
236 | ||
06746c67 | 237 | if (timeout) { |
b50455fa | 238 | ret = down_timeout(&nau8825->xtalk_sem, timeout); |
06746c67 JH |
239 | if (ret < 0) |
240 | dev_warn(nau8825->dev, "Acquire semaphone timeout\n"); | |
241 | } else { | |
b50455fa | 242 | ret = down_interruptible(&nau8825->xtalk_sem); |
06746c67 JH |
243 | if (ret < 0) |
244 | dev_warn(nau8825->dev, "Acquire semaphone fail\n"); | |
245 | } | |
b50455fa | 246 | |
06746c67 | 247 | return ret; |
b50455fa JH |
248 | } |
249 | ||
250 | /** | |
251 | * nau8825_sema_release - release the semaphore of nau88l25 | |
252 | * @nau8825: component to register the codec private data with | |
253 | * | |
254 | * Release the semaphore which may be called from any context and | |
255 | * even by tasks which have never called down(). | |
256 | */ | |
257 | static inline void nau8825_sema_release(struct nau8825 *nau8825) | |
258 | { | |
259 | up(&nau8825->xtalk_sem); | |
260 | } | |
261 | ||
262 | /** | |
263 | * nau8825_sema_reset - reset the semaphore for nau88l25 | |
264 | * @nau8825: component to register the codec private data with | |
265 | * | |
266 | * Reset the counter of the semaphore. Call this function to restart | |
267 | * a new round task management. | |
268 | */ | |
269 | static inline void nau8825_sema_reset(struct nau8825 *nau8825) | |
270 | { | |
271 | nau8825->xtalk_sem.count = 1; | |
272 | } | |
273 | ||
274 | /** | |
275 | * Ramp up the headphone volume change gradually to target level. | |
276 | * | |
277 | * @nau8825: component to register the codec private data with | |
278 | * @vol_from: the volume to start up | |
279 | * @vol_to: the target volume | |
280 | * @step: the volume span to move on | |
281 | * | |
282 | * The headphone volume is from 0dB to minimum -54dB and -1dB per step. | |
283 | * If the volume changes sharp, there is a pop noise heard in headphone. We | |
284 | * provide the function to ramp up the volume up or down by delaying 10ms | |
285 | * per step. | |
286 | */ | |
287 | static void nau8825_hpvol_ramp(struct nau8825 *nau8825, | |
288 | unsigned int vol_from, unsigned int vol_to, unsigned int step) | |
289 | { | |
290 | unsigned int value, volume, ramp_up, from, to; | |
291 | ||
292 | if (vol_from == vol_to || step == 0) { | |
293 | return; | |
294 | } else if (vol_from < vol_to) { | |
295 | ramp_up = true; | |
296 | from = vol_from; | |
297 | to = vol_to; | |
298 | } else { | |
299 | ramp_up = false; | |
300 | from = vol_to; | |
301 | to = vol_from; | |
302 | } | |
303 | /* only handle volume from 0dB to minimum -54dB */ | |
304 | if (to > NAU8825_HP_VOL_MIN) | |
305 | to = NAU8825_HP_VOL_MIN; | |
306 | ||
307 | for (volume = from; volume < to; volume += step) { | |
308 | if (ramp_up) | |
309 | value = volume; | |
310 | else | |
311 | value = to - volume + from; | |
312 | regmap_update_bits(nau8825->regmap, NAU8825_REG_HSVOL_CTRL, | |
313 | NAU8825_HPL_VOL_MASK | NAU8825_HPR_VOL_MASK, | |
314 | (value << NAU8825_HPL_VOL_SFT) | value); | |
315 | usleep_range(10000, 10500); | |
316 | } | |
317 | if (ramp_up) | |
318 | value = to; | |
319 | else | |
320 | value = from; | |
321 | regmap_update_bits(nau8825->regmap, NAU8825_REG_HSVOL_CTRL, | |
322 | NAU8825_HPL_VOL_MASK | NAU8825_HPR_VOL_MASK, | |
323 | (value << NAU8825_HPL_VOL_SFT) | value); | |
324 | } | |
325 | ||
326 | /** | |
327 | * Computes log10 of a value; the result is round off to 3 decimal. This func- | |
328 | * tion takes reference to dvb-math. The source code locates as the following. | |
329 | * Linux/drivers/media/dvb-core/dvb_math.c | |
330 | * | |
331 | * return log10(value) * 1000 | |
332 | */ | |
333 | static u32 nau8825_intlog10_dec3(u32 value) | |
334 | { | |
335 | u32 msb, logentry, significand, interpolation, log10val; | |
336 | u64 log2val; | |
337 | ||
338 | /* first detect the msb (count begins at 0) */ | |
339 | msb = fls(value) - 1; | |
340 | /** | |
341 | * now we use a logtable after the following method: | |
342 | * | |
343 | * log2(2^x * y) * 2^24 = x * 2^24 + log2(y) * 2^24 | |
344 | * where x = msb and therefore 1 <= y < 2 | |
345 | * first y is determined by shifting the value left | |
346 | * so that msb is bit 31 | |
347 | * 0x00231f56 -> 0x8C7D5800 | |
348 | * the result is y * 2^31 -> "significand" | |
349 | * then the highest 9 bits are used for a table lookup | |
350 | * the highest bit is discarded because it's always set | |
351 | * the highest nine bits in our example are 100011000 | |
352 | * so we would use the entry 0x18 | |
353 | */ | |
354 | significand = value << (31 - msb); | |
355 | logentry = (significand >> 23) & 0xff; | |
356 | /** | |
357 | * last step we do is interpolation because of the | |
358 | * limitations of the log table the error is that part of | |
359 | * the significand which isn't used for lookup then we | |
360 | * compute the ratio between the error and the next table entry | |
361 | * and interpolate it between the log table entry used and the | |
362 | * next one the biggest error possible is 0x7fffff | |
363 | * (in our example it's 0x7D5800) | |
364 | * needed value for next table entry is 0x800000 | |
365 | * so the interpolation is | |
366 | * (error / 0x800000) * (logtable_next - logtable_current) | |
367 | * in the implementation the division is moved to the end for | |
368 | * better accuracy there is also an overflow correction if | |
369 | * logtable_next is 256 | |
370 | */ | |
371 | interpolation = ((significand & 0x7fffff) * | |
372 | ((logtable[(logentry + 1) & 0xff] - | |
373 | logtable[logentry]) & 0xffff)) >> 15; | |
374 | ||
375 | log2val = ((msb << 24) + (logtable[logentry] << 8) + interpolation); | |
376 | /** | |
377 | * log10(x) = log2(x) * log10(2) | |
378 | */ | |
379 | log10val = (log2val * LOG10_MAGIC) >> 31; | |
380 | /** | |
381 | * the result is round off to 3 decimal | |
382 | */ | |
383 | return log10val / ((1 << 24) / 1000); | |
384 | } | |
385 | ||
386 | /** | |
387 | * computes cross talk suppression sidetone gain. | |
388 | * | |
389 | * @sig_org: orignal signal level | |
390 | * @sig_cros: cross talk signal level | |
391 | * | |
392 | * The orignal and cross talk signal vlues need to be characterized. | |
393 | * Once these values have been characterized, this sidetone value | |
394 | * can be converted to decibel with the equation below. | |
395 | * sidetone = 20 * log (original signal level / crosstalk signal level) | |
396 | * | |
397 | * return cross talk sidetone gain | |
398 | */ | |
399 | static u32 nau8825_xtalk_sidetone(u32 sig_org, u32 sig_cros) | |
400 | { | |
401 | u32 gain, sidetone; | |
402 | ||
403 | if (unlikely(sig_org == 0) || unlikely(sig_cros == 0)) { | |
404 | WARN_ON(1); | |
405 | return 0; | |
406 | } | |
407 | ||
408 | sig_org = nau8825_intlog10_dec3(sig_org); | |
409 | sig_cros = nau8825_intlog10_dec3(sig_cros); | |
410 | if (sig_org >= sig_cros) | |
411 | gain = (sig_org - sig_cros) * 20 + GAIN_AUGMENT; | |
412 | else | |
413 | gain = (sig_cros - sig_org) * 20 + GAIN_AUGMENT; | |
414 | sidetone = SIDETONE_BASE - gain * 2; | |
415 | sidetone /= 1000; | |
416 | ||
417 | return sidetone; | |
418 | } | |
419 | ||
420 | static int nau8825_xtalk_baktab_index_by_reg(unsigned int reg) | |
421 | { | |
422 | int index; | |
423 | ||
424 | for (index = 0; index < ARRAY_SIZE(nau8825_xtalk_baktab); index++) | |
425 | if (nau8825_xtalk_baktab[index].reg == reg) | |
426 | return index; | |
427 | return -EINVAL; | |
428 | } | |
429 | ||
430 | static void nau8825_xtalk_backup(struct nau8825 *nau8825) | |
431 | { | |
432 | int i; | |
433 | ||
434 | /* Backup some register values to backup table */ | |
435 | for (i = 0; i < ARRAY_SIZE(nau8825_xtalk_baktab); i++) | |
436 | regmap_read(nau8825->regmap, nau8825_xtalk_baktab[i].reg, | |
437 | &nau8825_xtalk_baktab[i].def); | |
438 | } | |
439 | ||
440 | static void nau8825_xtalk_restore(struct nau8825 *nau8825) | |
441 | { | |
442 | int i, volume; | |
443 | ||
444 | /* Restore register values from backup table; When the driver restores | |
445 | * the headphone volumem, it needs recover to original level gradually | |
446 | * with 3dB per step for less pop noise. | |
447 | */ | |
448 | for (i = 0; i < ARRAY_SIZE(nau8825_xtalk_baktab); i++) { | |
449 | if (nau8825_xtalk_baktab[i].reg == NAU8825_REG_HSVOL_CTRL) { | |
450 | /* Ramping up the volume change to reduce pop noise */ | |
451 | volume = nau8825_xtalk_baktab[i].def & | |
452 | NAU8825_HPR_VOL_MASK; | |
453 | nau8825_hpvol_ramp(nau8825, 0, volume, 3); | |
454 | continue; | |
455 | } | |
456 | regmap_write(nau8825->regmap, nau8825_xtalk_baktab[i].reg, | |
457 | nau8825_xtalk_baktab[i].def); | |
458 | } | |
459 | } | |
460 | ||
461 | static void nau8825_xtalk_prepare_dac(struct nau8825 *nau8825) | |
462 | { | |
463 | /* Enable power of DAC path */ | |
464 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ENA_CTRL, | |
465 | NAU8825_ENABLE_DACR | NAU8825_ENABLE_DACL | | |
466 | NAU8825_ENABLE_ADC | NAU8825_ENABLE_ADC_CLK | | |
467 | NAU8825_ENABLE_DAC_CLK, NAU8825_ENABLE_DACR | | |
468 | NAU8825_ENABLE_DACL | NAU8825_ENABLE_ADC | | |
469 | NAU8825_ENABLE_ADC_CLK | NAU8825_ENABLE_DAC_CLK); | |
470 | /* Prevent startup click by letting charge pump to ramp up and | |
471 | * change bump enable | |
472 | */ | |
473 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CHARGE_PUMP, | |
474 | NAU8825_JAMNODCLOW | NAU8825_CHANRGE_PUMP_EN, | |
475 | NAU8825_JAMNODCLOW | NAU8825_CHANRGE_PUMP_EN); | |
476 | /* Enable clock sync of DAC and DAC clock */ | |
477 | regmap_update_bits(nau8825->regmap, NAU8825_REG_RDAC, | |
478 | NAU8825_RDAC_EN | NAU8825_RDAC_CLK_EN | | |
479 | NAU8825_RDAC_FS_BCLK_ENB, | |
480 | NAU8825_RDAC_EN | NAU8825_RDAC_CLK_EN); | |
481 | /* Power up output driver with 2 stage */ | |
482 | regmap_update_bits(nau8825->regmap, NAU8825_REG_POWER_UP_CONTROL, | |
483 | NAU8825_POWERUP_INTEGR_R | NAU8825_POWERUP_INTEGR_L | | |
484 | NAU8825_POWERUP_DRV_IN_R | NAU8825_POWERUP_DRV_IN_L, | |
485 | NAU8825_POWERUP_INTEGR_R | NAU8825_POWERUP_INTEGR_L | | |
486 | NAU8825_POWERUP_DRV_IN_R | NAU8825_POWERUP_DRV_IN_L); | |
487 | regmap_update_bits(nau8825->regmap, NAU8825_REG_POWER_UP_CONTROL, | |
488 | NAU8825_POWERUP_HP_DRV_R | NAU8825_POWERUP_HP_DRV_L, | |
489 | NAU8825_POWERUP_HP_DRV_R | NAU8825_POWERUP_HP_DRV_L); | |
490 | /* HP outputs not shouted to ground */ | |
491 | regmap_update_bits(nau8825->regmap, NAU8825_REG_HSD_CTRL, | |
492 | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L, 0); | |
493 | /* Enable HP boost driver */ | |
494 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BOOST, | |
495 | NAU8825_HP_BOOST_DIS, NAU8825_HP_BOOST_DIS); | |
496 | /* Enable class G compare path to supply 1.8V or 0.9V. */ | |
497 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLASSG_CTRL, | |
498 | NAU8825_CLASSG_LDAC_EN | NAU8825_CLASSG_RDAC_EN, | |
499 | NAU8825_CLASSG_LDAC_EN | NAU8825_CLASSG_RDAC_EN); | |
500 | } | |
501 | ||
502 | static void nau8825_xtalk_prepare_adc(struct nau8825 *nau8825) | |
503 | { | |
504 | /* Power up left ADC and raise 5dB than Vmid for Vref */ | |
505 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ANALOG_ADC_2, | |
506 | NAU8825_POWERUP_ADCL | NAU8825_ADC_VREFSEL_MASK, | |
507 | NAU8825_POWERUP_ADCL | NAU8825_ADC_VREFSEL_VMID_PLUS_0_5DB); | |
508 | } | |
509 | ||
510 | static void nau8825_xtalk_clock(struct nau8825 *nau8825) | |
511 | { | |
512 | /* Recover FLL default value */ | |
513 | regmap_write(nau8825->regmap, NAU8825_REG_FLL1, 0x0); | |
514 | regmap_write(nau8825->regmap, NAU8825_REG_FLL2, 0x3126); | |
515 | regmap_write(nau8825->regmap, NAU8825_REG_FLL3, 0x0008); | |
516 | regmap_write(nau8825->regmap, NAU8825_REG_FLL4, 0x0010); | |
517 | regmap_write(nau8825->regmap, NAU8825_REG_FLL5, 0x0); | |
518 | regmap_write(nau8825->regmap, NAU8825_REG_FLL6, 0x6000); | |
519 | /* Enable internal VCO clock for detection signal generated */ | |
520 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLK_DIVIDER, | |
521 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_VCO); | |
522 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL6, NAU8825_DCO_EN, | |
523 | NAU8825_DCO_EN); | |
524 | /* Given specific clock frequency of internal clock to | |
525 | * generate signal. | |
526 | */ | |
527 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLK_DIVIDER, | |
528 | NAU8825_CLK_MCLK_SRC_MASK, 0xf); | |
529 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL1, | |
530 | NAU8825_FLL_RATIO_MASK, 0x10); | |
531 | } | |
532 | ||
533 | static void nau8825_xtalk_prepare(struct nau8825 *nau8825) | |
534 | { | |
535 | int volume, index; | |
536 | ||
537 | /* Backup those registers changed by cross talk detection */ | |
538 | nau8825_xtalk_backup(nau8825); | |
539 | /* Config IIS as master to output signal by codec */ | |
540 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
541 | NAU8825_I2S_MS_MASK | NAU8825_I2S_DRV_MASK | | |
542 | NAU8825_I2S_BLK_DIV_MASK, NAU8825_I2S_MS_MASTER | | |
543 | (0x2 << NAU8825_I2S_DRV_SFT) | 0x1); | |
544 | /* Ramp up headphone volume to 0dB to get better performance and | |
545 | * avoid pop noise in headphone. | |
546 | */ | |
547 | index = nau8825_xtalk_baktab_index_by_reg(NAU8825_REG_HSVOL_CTRL); | |
548 | if (index != -EINVAL) { | |
549 | volume = nau8825_xtalk_baktab[index].def & | |
550 | NAU8825_HPR_VOL_MASK; | |
551 | nau8825_hpvol_ramp(nau8825, volume, 0, 3); | |
552 | } | |
553 | nau8825_xtalk_clock(nau8825); | |
554 | nau8825_xtalk_prepare_dac(nau8825); | |
555 | nau8825_xtalk_prepare_adc(nau8825); | |
556 | /* Config channel path and digital gain */ | |
557 | regmap_update_bits(nau8825->regmap, NAU8825_REG_DACL_CTRL, | |
558 | NAU8825_DACL_CH_SEL_MASK | NAU8825_DACL_CH_VOL_MASK, | |
559 | NAU8825_DACL_CH_SEL_L | 0xab); | |
560 | regmap_update_bits(nau8825->regmap, NAU8825_REG_DACR_CTRL, | |
561 | NAU8825_DACR_CH_SEL_MASK | NAU8825_DACR_CH_VOL_MASK, | |
562 | NAU8825_DACR_CH_SEL_R | 0xab); | |
563 | /* Config cross talk parameters and generate the 23Hz sine wave with | |
564 | * 1/16 full scale of signal level for impedance measurement. | |
565 | */ | |
566 | regmap_update_bits(nau8825->regmap, NAU8825_REG_IMM_MODE_CTRL, | |
567 | NAU8825_IMM_THD_MASK | NAU8825_IMM_GEN_VOL_MASK | | |
568 | NAU8825_IMM_CYC_MASK | NAU8825_IMM_DAC_SRC_MASK, | |
569 | (0x9 << NAU8825_IMM_THD_SFT) | NAU8825_IMM_GEN_VOL_1_16th | | |
570 | NAU8825_IMM_CYC_8192 | NAU8825_IMM_DAC_SRC_SIN); | |
571 | /* RMS intrruption enable */ | |
572 | regmap_update_bits(nau8825->regmap, | |
573 | NAU8825_REG_INTERRUPT_MASK, NAU8825_IRQ_RMS_EN, 0); | |
574 | /* Power up left and right DAC */ | |
575 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CHARGE_PUMP, | |
576 | NAU8825_POWER_DOWN_DACR | NAU8825_POWER_DOWN_DACL, 0); | |
577 | } | |
578 | ||
579 | static void nau8825_xtalk_clean_dac(struct nau8825 *nau8825) | |
580 | { | |
581 | /* Disable HP boost driver */ | |
582 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BOOST, | |
583 | NAU8825_HP_BOOST_DIS, 0); | |
584 | /* HP outputs shouted to ground */ | |
585 | regmap_update_bits(nau8825->regmap, NAU8825_REG_HSD_CTRL, | |
586 | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L, | |
587 | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L); | |
588 | /* Power down left and right DAC */ | |
589 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CHARGE_PUMP, | |
590 | NAU8825_POWER_DOWN_DACR | NAU8825_POWER_DOWN_DACL, | |
591 | NAU8825_POWER_DOWN_DACR | NAU8825_POWER_DOWN_DACL); | |
592 | /* Enable the TESTDAC and disable L/R HP impedance */ | |
593 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
594 | NAU8825_BIAS_HPR_IMP | NAU8825_BIAS_HPL_IMP | | |
595 | NAU8825_BIAS_TESTDAC_EN, NAU8825_BIAS_TESTDAC_EN); | |
596 | /* Power down output driver with 2 stage */ | |
597 | regmap_update_bits(nau8825->regmap, NAU8825_REG_POWER_UP_CONTROL, | |
598 | NAU8825_POWERUP_HP_DRV_R | NAU8825_POWERUP_HP_DRV_L, 0); | |
599 | regmap_update_bits(nau8825->regmap, NAU8825_REG_POWER_UP_CONTROL, | |
600 | NAU8825_POWERUP_INTEGR_R | NAU8825_POWERUP_INTEGR_L | | |
601 | NAU8825_POWERUP_DRV_IN_R | NAU8825_POWERUP_DRV_IN_L, 0); | |
602 | /* Disable clock sync of DAC and DAC clock */ | |
603 | regmap_update_bits(nau8825->regmap, NAU8825_REG_RDAC, | |
604 | NAU8825_RDAC_EN | NAU8825_RDAC_CLK_EN, 0); | |
605 | /* Disable charge pump ramp up function and change bump */ | |
606 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CHARGE_PUMP, | |
607 | NAU8825_JAMNODCLOW | NAU8825_CHANRGE_PUMP_EN, 0); | |
608 | /* Disable power of DAC path */ | |
609 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ENA_CTRL, | |
610 | NAU8825_ENABLE_DACR | NAU8825_ENABLE_DACL | | |
611 | NAU8825_ENABLE_ADC_CLK | NAU8825_ENABLE_DAC_CLK, 0); | |
612 | if (!nau8825->irq) | |
613 | regmap_update_bits(nau8825->regmap, | |
614 | NAU8825_REG_ENA_CTRL, NAU8825_ENABLE_ADC, 0); | |
615 | } | |
616 | ||
617 | static void nau8825_xtalk_clean_adc(struct nau8825 *nau8825) | |
618 | { | |
619 | /* Power down left ADC and restore voltage to Vmid */ | |
620 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ANALOG_ADC_2, | |
621 | NAU8825_POWERUP_ADCL | NAU8825_ADC_VREFSEL_MASK, 0); | |
622 | } | |
623 | ||
624 | static void nau8825_xtalk_clean(struct nau8825 *nau8825) | |
625 | { | |
626 | /* Enable internal VCO needed for interruptions */ | |
627 | nau8825_configure_sysclk(nau8825, NAU8825_CLK_INTERNAL, 0); | |
628 | nau8825_xtalk_clean_dac(nau8825); | |
629 | nau8825_xtalk_clean_adc(nau8825); | |
630 | /* Clear cross talk parameters and disable */ | |
631 | regmap_write(nau8825->regmap, NAU8825_REG_IMM_MODE_CTRL, 0); | |
632 | /* RMS intrruption disable */ | |
633 | regmap_update_bits(nau8825->regmap, NAU8825_REG_INTERRUPT_MASK, | |
634 | NAU8825_IRQ_RMS_EN, NAU8825_IRQ_RMS_EN); | |
635 | /* Recover default value for IIS */ | |
636 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
637 | NAU8825_I2S_MS_MASK | NAU8825_I2S_DRV_MASK | | |
638 | NAU8825_I2S_BLK_DIV_MASK, NAU8825_I2S_MS_SLAVE); | |
639 | /* Restore value of specific register for cross talk */ | |
640 | nau8825_xtalk_restore(nau8825); | |
641 | } | |
642 | ||
643 | static void nau8825_xtalk_imm_start(struct nau8825 *nau8825, int vol) | |
644 | { | |
645 | /* Apply ADC volume for better cross talk performance */ | |
646 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ADC_DGAIN_CTRL, | |
647 | NAU8825_ADC_DIG_VOL_MASK, vol); | |
648 | /* Disables JKTIP(HPL) DAC channel for right to left measurement. | |
649 | * Do it before sending signal in order to erase pop noise. | |
650 | */ | |
651 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
652 | NAU8825_BIAS_TESTDACR_EN | NAU8825_BIAS_TESTDACL_EN, | |
653 | NAU8825_BIAS_TESTDACL_EN); | |
654 | switch (nau8825->xtalk_state) { | |
655 | case NAU8825_XTALK_HPR_R2L: | |
656 | /* Enable right headphone impedance */ | |
657 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
658 | NAU8825_BIAS_HPR_IMP | NAU8825_BIAS_HPL_IMP, | |
659 | NAU8825_BIAS_HPR_IMP); | |
660 | break; | |
661 | case NAU8825_XTALK_HPL_R2L: | |
662 | /* Enable left headphone impedance */ | |
663 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
664 | NAU8825_BIAS_HPR_IMP | NAU8825_BIAS_HPL_IMP, | |
665 | NAU8825_BIAS_HPL_IMP); | |
666 | break; | |
667 | default: | |
668 | break; | |
669 | } | |
670 | msleep(100); | |
671 | /* Impedance measurement mode enable */ | |
672 | regmap_update_bits(nau8825->regmap, NAU8825_REG_IMM_MODE_CTRL, | |
673 | NAU8825_IMM_EN, NAU8825_IMM_EN); | |
674 | } | |
675 | ||
676 | static void nau8825_xtalk_imm_stop(struct nau8825 *nau8825) | |
677 | { | |
678 | /* Impedance measurement mode disable */ | |
679 | regmap_update_bits(nau8825->regmap, | |
680 | NAU8825_REG_IMM_MODE_CTRL, NAU8825_IMM_EN, 0); | |
681 | } | |
682 | ||
683 | /* The cross talk measurement function can reduce cross talk across the | |
684 | * JKTIP(HPL) and JKR1(HPR) outputs which measures the cross talk signal | |
685 | * level to determine what cross talk reduction gain is. This system works by | |
686 | * sending a 23Hz -24dBV sine wave into the headset output DAC and through | |
687 | * the PGA. The output of the PGA is then connected to an internal current | |
688 | * sense which measures the attenuated 23Hz signal and passing the output to | |
689 | * an ADC which converts the measurement to a binary code. With two separated | |
690 | * measurement, one for JKR1(HPR) and the other JKTIP(HPL), measurement data | |
691 | * can be separated read in IMM_RMS_L for HSR and HSL after each measurement. | |
692 | * Thus, the measurement function has four states to complete whole sequence. | |
693 | * 1. Prepare state : Prepare the resource for detection and transfer to HPR | |
694 | * IMM stat to make JKR1(HPR) impedance measure. | |
695 | * 2. HPR IMM state : Read out orignal signal level of JKR1(HPR) and transfer | |
696 | * to HPL IMM state to make JKTIP(HPL) impedance measure. | |
697 | * 3. HPL IMM state : Read out cross talk signal level of JKTIP(HPL) and | |
698 | * transfer to IMM state to determine suppression sidetone gain. | |
699 | * 4. IMM state : Computes cross talk suppression sidetone gain with orignal | |
700 | * and cross talk signal level. Apply this gain and then restore codec | |
701 | * configuration. Then transfer to Done state for ending. | |
702 | */ | |
703 | static void nau8825_xtalk_measure(struct nau8825 *nau8825) | |
704 | { | |
705 | u32 sidetone; | |
706 | ||
707 | switch (nau8825->xtalk_state) { | |
708 | case NAU8825_XTALK_PREPARE: | |
709 | /* In prepare state, set up clock, intrruption, DAC path, ADC | |
710 | * path and cross talk detection parameters for preparation. | |
711 | */ | |
712 | nau8825_xtalk_prepare(nau8825); | |
713 | msleep(280); | |
714 | /* Trigger right headphone impedance detection */ | |
715 | nau8825->xtalk_state = NAU8825_XTALK_HPR_R2L; | |
716 | nau8825_xtalk_imm_start(nau8825, 0x00d2); | |
717 | break; | |
718 | case NAU8825_XTALK_HPR_R2L: | |
719 | /* In right headphone IMM state, read out right headphone | |
720 | * impedance measure result, and then start up left side. | |
721 | */ | |
722 | regmap_read(nau8825->regmap, NAU8825_REG_IMM_RMS_L, | |
723 | &nau8825->imp_rms[NAU8825_XTALK_HPR_R2L]); | |
724 | dev_dbg(nau8825->dev, "HPR_R2L imm: %x\n", | |
725 | nau8825->imp_rms[NAU8825_XTALK_HPR_R2L]); | |
726 | /* Disable then re-enable IMM mode to update */ | |
727 | nau8825_xtalk_imm_stop(nau8825); | |
728 | /* Trigger left headphone impedance detection */ | |
729 | nau8825->xtalk_state = NAU8825_XTALK_HPL_R2L; | |
730 | nau8825_xtalk_imm_start(nau8825, 0x00ff); | |
731 | break; | |
732 | case NAU8825_XTALK_HPL_R2L: | |
733 | /* In left headphone IMM state, read out left headphone | |
734 | * impedance measure result, and delay some time to wait | |
735 | * detection sine wave output finish. Then, we can calculate | |
736 | * the cross talk suppresstion side tone according to the L/R | |
737 | * headphone imedance. | |
738 | */ | |
739 | regmap_read(nau8825->regmap, NAU8825_REG_IMM_RMS_L, | |
740 | &nau8825->imp_rms[NAU8825_XTALK_HPL_R2L]); | |
741 | dev_dbg(nau8825->dev, "HPL_R2L imm: %x\n", | |
742 | nau8825->imp_rms[NAU8825_XTALK_HPL_R2L]); | |
743 | nau8825_xtalk_imm_stop(nau8825); | |
744 | msleep(150); | |
745 | nau8825->xtalk_state = NAU8825_XTALK_IMM; | |
746 | break; | |
747 | case NAU8825_XTALK_IMM: | |
748 | /* In impedance measure state, the orignal and cross talk | |
749 | * signal level vlues are ready. The side tone gain is deter- | |
750 | * mined with these signal level. After all, restore codec | |
751 | * configuration. | |
752 | */ | |
753 | sidetone = nau8825_xtalk_sidetone( | |
754 | nau8825->imp_rms[NAU8825_XTALK_HPR_R2L], | |
755 | nau8825->imp_rms[NAU8825_XTALK_HPL_R2L]); | |
756 | dev_dbg(nau8825->dev, "cross talk sidetone: %x\n", sidetone); | |
757 | regmap_write(nau8825->regmap, NAU8825_REG_DAC_DGAIN_CTRL, | |
758 | (sidetone << 8) | sidetone); | |
759 | nau8825_xtalk_clean(nau8825); | |
760 | nau8825->xtalk_state = NAU8825_XTALK_DONE; | |
761 | break; | |
762 | default: | |
763 | break; | |
764 | } | |
765 | } | |
766 | ||
767 | static void nau8825_xtalk_work(struct work_struct *work) | |
768 | { | |
769 | struct nau8825 *nau8825 = container_of( | |
770 | work, struct nau8825, xtalk_work); | |
771 | ||
772 | nau8825_xtalk_measure(nau8825); | |
773 | /* To determine the cross talk side tone gain when reach | |
774 | * the impedance measure state. | |
775 | */ | |
776 | if (nau8825->xtalk_state == NAU8825_XTALK_IMM) | |
777 | nau8825_xtalk_measure(nau8825); | |
778 | ||
779 | /* Delay jack report until cross talk detection process | |
780 | * completed. It can avoid application to do playback | |
781 | * preparation before cross talk detection is still working. | |
782 | * Meanwhile, the protection of the cross talk detection | |
783 | * is released. | |
784 | */ | |
785 | if (nau8825->xtalk_state == NAU8825_XTALK_DONE) { | |
786 | snd_soc_jack_report(nau8825->jack, nau8825->xtalk_event, | |
787 | nau8825->xtalk_event_mask); | |
788 | nau8825_sema_release(nau8825); | |
789 | nau8825->xtalk_protect = false; | |
790 | } | |
791 | } | |
792 | ||
793 | static void nau8825_xtalk_cancel(struct nau8825 *nau8825) | |
794 | { | |
795 | /* If the xtalk_protect is true, that means the process is still | |
796 | * on going. The driver forces to cancel the cross talk task and | |
797 | * restores the configuration to original status. | |
798 | */ | |
799 | if (nau8825->xtalk_protect) { | |
800 | cancel_work_sync(&nau8825->xtalk_work); | |
801 | nau8825_xtalk_clean(nau8825); | |
802 | } | |
803 | /* Reset parameters for cross talk suppression function */ | |
804 | nau8825_sema_reset(nau8825); | |
805 | nau8825->xtalk_state = NAU8825_XTALK_DONE; | |
806 | nau8825->xtalk_protect = false; | |
807 | } | |
808 | ||
34ca27f3 AP |
809 | static bool nau8825_readable_reg(struct device *dev, unsigned int reg) |
810 | { | |
811 | switch (reg) { | |
45d5eb3a | 812 | case NAU8825_REG_ENA_CTRL ... NAU8825_REG_FLL_VCO_RSV: |
34ca27f3 AP |
813 | case NAU8825_REG_HSD_CTRL ... NAU8825_REG_JACK_DET_CTRL: |
814 | case NAU8825_REG_INTERRUPT_MASK ... NAU8825_REG_KEYDET_CTRL: | |
815 | case NAU8825_REG_VDET_THRESHOLD_1 ... NAU8825_REG_DACR_CTRL: | |
816 | case NAU8825_REG_ADC_DRC_KNEE_IP12 ... NAU8825_REG_ADC_DRC_ATKDCY: | |
817 | case NAU8825_REG_DAC_DRC_KNEE_IP12 ... NAU8825_REG_DAC_DRC_ATKDCY: | |
818 | case NAU8825_REG_IMM_MODE_CTRL ... NAU8825_REG_IMM_RMS_R: | |
819 | case NAU8825_REG_CLASSG_CTRL ... NAU8825_REG_OPT_EFUSE_CTRL: | |
820 | case NAU8825_REG_MISC_CTRL: | |
821 | case NAU8825_REG_I2C_DEVICE_ID ... NAU8825_REG_SARDOUT_RAM_STATUS: | |
822 | case NAU8825_REG_BIAS_ADJ: | |
823 | case NAU8825_REG_TRIM_SETTINGS ... NAU8825_REG_ANALOG_CONTROL_2: | |
824 | case NAU8825_REG_ANALOG_ADC_1 ... NAU8825_REG_MIC_BIAS: | |
825 | case NAU8825_REG_BOOST ... NAU8825_REG_FEPGA: | |
826 | case NAU8825_REG_POWER_UP_CONTROL ... NAU8825_REG_GENERAL_STATUS: | |
827 | return true; | |
828 | default: | |
829 | return false; | |
830 | } | |
831 | ||
832 | } | |
833 | ||
834 | static bool nau8825_writeable_reg(struct device *dev, unsigned int reg) | |
835 | { | |
836 | switch (reg) { | |
45d5eb3a | 837 | case NAU8825_REG_RESET ... NAU8825_REG_FLL_VCO_RSV: |
34ca27f3 AP |
838 | case NAU8825_REG_HSD_CTRL ... NAU8825_REG_JACK_DET_CTRL: |
839 | case NAU8825_REG_INTERRUPT_MASK: | |
840 | case NAU8825_REG_INT_CLR_KEY_STATUS ... NAU8825_REG_KEYDET_CTRL: | |
841 | case NAU8825_REG_VDET_THRESHOLD_1 ... NAU8825_REG_DACR_CTRL: | |
842 | case NAU8825_REG_ADC_DRC_KNEE_IP12 ... NAU8825_REG_ADC_DRC_ATKDCY: | |
843 | case NAU8825_REG_DAC_DRC_KNEE_IP12 ... NAU8825_REG_DAC_DRC_ATKDCY: | |
844 | case NAU8825_REG_IMM_MODE_CTRL: | |
845 | case NAU8825_REG_CLASSG_CTRL ... NAU8825_REG_OPT_EFUSE_CTRL: | |
846 | case NAU8825_REG_MISC_CTRL: | |
847 | case NAU8825_REG_BIAS_ADJ: | |
848 | case NAU8825_REG_TRIM_SETTINGS ... NAU8825_REG_ANALOG_CONTROL_2: | |
849 | case NAU8825_REG_ANALOG_ADC_1 ... NAU8825_REG_MIC_BIAS: | |
850 | case NAU8825_REG_BOOST ... NAU8825_REG_FEPGA: | |
851 | case NAU8825_REG_POWER_UP_CONTROL ... NAU8825_REG_CHARGE_PUMP: | |
852 | return true; | |
853 | default: | |
854 | return false; | |
855 | } | |
856 | } | |
857 | ||
858 | static bool nau8825_volatile_reg(struct device *dev, unsigned int reg) | |
859 | { | |
860 | switch (reg) { | |
861 | case NAU8825_REG_RESET: | |
862 | case NAU8825_REG_IRQ_STATUS: | |
863 | case NAU8825_REG_INT_CLR_KEY_STATUS: | |
864 | case NAU8825_REG_IMM_RMS_L: | |
865 | case NAU8825_REG_IMM_RMS_R: | |
866 | case NAU8825_REG_I2C_DEVICE_ID: | |
867 | case NAU8825_REG_SARDOUT_RAM_STATUS: | |
868 | case NAU8825_REG_CHARGE_PUMP_INPUT_READ: | |
869 | case NAU8825_REG_GENERAL_STATUS: | |
18d8306d | 870 | case NAU8825_REG_BIQ_CTRL ... NAU8825_REG_BIQ_COF10: |
34ca27f3 AP |
871 | return true; |
872 | default: | |
873 | return false; | |
874 | } | |
875 | } | |
876 | ||
eeef16ac JH |
877 | static int nau8825_adc_event(struct snd_soc_dapm_widget *w, |
878 | struct snd_kcontrol *kcontrol, int event) | |
879 | { | |
880 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); | |
881 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
882 | ||
883 | switch (event) { | |
884 | case SND_SOC_DAPM_POST_PMU: | |
885 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ENA_CTRL, | |
886 | NAU8825_ENABLE_ADC, NAU8825_ENABLE_ADC); | |
887 | break; | |
888 | case SND_SOC_DAPM_POST_PMD: | |
889 | if (!nau8825->irq) | |
890 | regmap_update_bits(nau8825->regmap, | |
891 | NAU8825_REG_ENA_CTRL, NAU8825_ENABLE_ADC, 0); | |
892 | break; | |
893 | default: | |
894 | return -EINVAL; | |
895 | } | |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
34ca27f3 AP |
900 | static int nau8825_pump_event(struct snd_soc_dapm_widget *w, |
901 | struct snd_kcontrol *kcontrol, int event) | |
902 | { | |
45d5eb3a JH |
903 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
904 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
905 | ||
34ca27f3 AP |
906 | switch (event) { |
907 | case SND_SOC_DAPM_POST_PMU: | |
908 | /* Prevent startup click by letting charge pump to ramp up */ | |
909 | msleep(10); | |
45d5eb3a JH |
910 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CHARGE_PUMP, |
911 | NAU8825_JAMNODCLOW, NAU8825_JAMNODCLOW); | |
912 | break; | |
913 | case SND_SOC_DAPM_PRE_PMD: | |
914 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CHARGE_PUMP, | |
915 | NAU8825_JAMNODCLOW, 0); | |
916 | break; | |
917 | default: | |
918 | return -EINVAL; | |
919 | } | |
920 | ||
921 | return 0; | |
922 | } | |
923 | ||
924 | static int nau8825_output_dac_event(struct snd_soc_dapm_widget *w, | |
925 | struct snd_kcontrol *kcontrol, int event) | |
926 | { | |
927 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); | |
928 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
929 | ||
930 | switch (event) { | |
931 | case SND_SOC_DAPM_PRE_PMU: | |
932 | /* Disables the TESTDAC to let DAC signal pass through. */ | |
933 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
934 | NAU8825_BIAS_TESTDAC_EN, 0); | |
935 | break; | |
936 | case SND_SOC_DAPM_POST_PMD: | |
937 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
938 | NAU8825_BIAS_TESTDAC_EN, NAU8825_BIAS_TESTDAC_EN); | |
34ca27f3 AP |
939 | break; |
940 | default: | |
941 | return -EINVAL; | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
18d8306d JH |
947 | static int nau8825_biq_coeff_get(struct snd_kcontrol *kcontrol, |
948 | struct snd_ctl_elem_value *ucontrol) | |
949 | { | |
950 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
951 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; | |
952 | ||
953 | if (!component->regmap) | |
954 | return -EINVAL; | |
955 | ||
956 | regmap_raw_read(component->regmap, NAU8825_REG_BIQ_COF1, | |
957 | ucontrol->value.bytes.data, params->max); | |
958 | return 0; | |
959 | } | |
960 | ||
961 | static int nau8825_biq_coeff_put(struct snd_kcontrol *kcontrol, | |
962 | struct snd_ctl_elem_value *ucontrol) | |
963 | { | |
964 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
965 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; | |
966 | void *data; | |
967 | ||
968 | if (!component->regmap) | |
969 | return -EINVAL; | |
970 | ||
971 | data = kmemdup(ucontrol->value.bytes.data, | |
972 | params->max, GFP_KERNEL | GFP_DMA); | |
973 | if (!data) | |
974 | return -ENOMEM; | |
975 | ||
976 | regmap_update_bits(component->regmap, NAU8825_REG_BIQ_CTRL, | |
977 | NAU8825_BIQ_WRT_EN, 0); | |
978 | regmap_raw_write(component->regmap, NAU8825_REG_BIQ_COF1, | |
979 | data, params->max); | |
980 | regmap_update_bits(component->regmap, NAU8825_REG_BIQ_CTRL, | |
981 | NAU8825_BIQ_WRT_EN, NAU8825_BIQ_WRT_EN); | |
982 | ||
983 | kfree(data); | |
984 | return 0; | |
985 | } | |
986 | ||
987 | static const char * const nau8825_biq_path[] = { | |
988 | "ADC", "DAC" | |
989 | }; | |
990 | ||
991 | static const struct soc_enum nau8825_biq_path_enum = | |
992 | SOC_ENUM_SINGLE(NAU8825_REG_BIQ_CTRL, NAU8825_BIQ_PATH_SFT, | |
993 | ARRAY_SIZE(nau8825_biq_path), nau8825_biq_path); | |
994 | ||
34ca27f3 AP |
995 | static const char * const nau8825_adc_decimation[] = { |
996 | "32", "64", "128", "256" | |
997 | }; | |
998 | ||
999 | static const struct soc_enum nau8825_adc_decimation_enum = | |
1000 | SOC_ENUM_SINGLE(NAU8825_REG_ADC_RATE, NAU8825_ADC_SYNC_DOWN_SFT, | |
1001 | ARRAY_SIZE(nau8825_adc_decimation), nau8825_adc_decimation); | |
1002 | ||
1003 | static const char * const nau8825_dac_oversampl[] = { | |
1004 | "64", "256", "128", "", "32" | |
1005 | }; | |
1006 | ||
1007 | static const struct soc_enum nau8825_dac_oversampl_enum = | |
1008 | SOC_ENUM_SINGLE(NAU8825_REG_DAC_CTRL1, NAU8825_DAC_OVERSAMPLE_SFT, | |
1009 | ARRAY_SIZE(nau8825_dac_oversampl), nau8825_dac_oversampl); | |
1010 | ||
1011 | static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -10300, 2400); | |
1012 | static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0); | |
1013 | static const DECLARE_TLV_DB_MINMAX(dac_vol_tlv, -5400, 0); | |
1014 | static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600); | |
1015 | static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -9600, 2400); | |
1016 | ||
1017 | static const struct snd_kcontrol_new nau8825_controls[] = { | |
1018 | SOC_SINGLE_TLV("Mic Volume", NAU8825_REG_ADC_DGAIN_CTRL, | |
1019 | 0, 0xff, 0, adc_vol_tlv), | |
1020 | SOC_DOUBLE_TLV("Headphone Bypass Volume", NAU8825_REG_ADC_DGAIN_CTRL, | |
1021 | 12, 8, 0x0f, 0, sidetone_vol_tlv), | |
1022 | SOC_DOUBLE_TLV("Headphone Volume", NAU8825_REG_HSVOL_CTRL, | |
1023 | 6, 0, 0x3f, 1, dac_vol_tlv), | |
1024 | SOC_SINGLE_TLV("Frontend PGA Volume", NAU8825_REG_POWER_UP_CONTROL, | |
1025 | 8, 37, 0, fepga_gain_tlv), | |
1026 | SOC_DOUBLE_TLV("Headphone Crosstalk Volume", NAU8825_REG_DAC_DGAIN_CTRL, | |
1027 | 0, 8, 0xff, 0, crosstalk_vol_tlv), | |
1028 | ||
1029 | SOC_ENUM("ADC Decimation Rate", nau8825_adc_decimation_enum), | |
1030 | SOC_ENUM("DAC Oversampling Rate", nau8825_dac_oversampl_enum), | |
18d8306d JH |
1031 | /* programmable biquad filter */ |
1032 | SOC_ENUM("BIQ Path Select", nau8825_biq_path_enum), | |
0cbeccdf | 1033 | SND_SOC_BYTES_EXT("BIQ Coefficients", 20, |
18d8306d | 1034 | nau8825_biq_coeff_get, nau8825_biq_coeff_put), |
34ca27f3 AP |
1035 | }; |
1036 | ||
1037 | /* DAC Mux 0x33[9] and 0x34[9] */ | |
1038 | static const char * const nau8825_dac_src[] = { | |
1039 | "DACL", "DACR", | |
1040 | }; | |
1041 | ||
1042 | static SOC_ENUM_SINGLE_DECL( | |
1043 | nau8825_dacl_enum, NAU8825_REG_DACL_CTRL, | |
1044 | NAU8825_DACL_CH_SEL_SFT, nau8825_dac_src); | |
1045 | ||
1046 | static SOC_ENUM_SINGLE_DECL( | |
1047 | nau8825_dacr_enum, NAU8825_REG_DACR_CTRL, | |
1048 | NAU8825_DACR_CH_SEL_SFT, nau8825_dac_src); | |
1049 | ||
1050 | static const struct snd_kcontrol_new nau8825_dacl_mux = | |
1051 | SOC_DAPM_ENUM("DACL Source", nau8825_dacl_enum); | |
1052 | ||
1053 | static const struct snd_kcontrol_new nau8825_dacr_mux = | |
1054 | SOC_DAPM_ENUM("DACR Source", nau8825_dacr_enum); | |
1055 | ||
1056 | ||
1057 | static const struct snd_soc_dapm_widget nau8825_dapm_widgets[] = { | |
1058 | SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, NAU8825_REG_I2S_PCM_CTRL2, | |
1059 | 15, 1), | |
1060 | ||
1061 | SND_SOC_DAPM_INPUT("MIC"), | |
1062 | SND_SOC_DAPM_MICBIAS("MICBIAS", NAU8825_REG_MIC_BIAS, 8, 0), | |
1063 | ||
1064 | SND_SOC_DAPM_PGA("Frontend PGA", NAU8825_REG_POWER_UP_CONTROL, 14, 0, | |
1065 | NULL, 0), | |
1066 | ||
eeef16ac JH |
1067 | SND_SOC_DAPM_ADC_E("ADC", NULL, SND_SOC_NOPM, 0, 0, |
1068 | nau8825_adc_event, SND_SOC_DAPM_POST_PMU | | |
1069 | SND_SOC_DAPM_POST_PMD), | |
34ca27f3 AP |
1070 | SND_SOC_DAPM_SUPPLY("ADC Clock", NAU8825_REG_ENA_CTRL, 7, 0, NULL, 0), |
1071 | SND_SOC_DAPM_SUPPLY("ADC Power", NAU8825_REG_ANALOG_ADC_2, 6, 0, NULL, | |
1072 | 0), | |
1073 | ||
e6cee900 BZ |
1074 | /* ADC for button press detection. A dapm supply widget is used to |
1075 | * prevent dapm_power_widgets keeping the codec at SND_SOC_BIAS_ON | |
1076 | * during suspend. | |
1077 | */ | |
1078 | SND_SOC_DAPM_SUPPLY("SAR", NAU8825_REG_SAR_CTRL, | |
1079 | NAU8825_SAR_ADC_EN_SFT, 0, NULL, 0), | |
34ca27f3 | 1080 | |
45d5eb3a JH |
1081 | SND_SOC_DAPM_PGA_S("ADACL", 2, NAU8825_REG_RDAC, 12, 0, NULL, 0), |
1082 | SND_SOC_DAPM_PGA_S("ADACR", 2, NAU8825_REG_RDAC, 13, 0, NULL, 0), | |
1083 | SND_SOC_DAPM_PGA_S("ADACL Clock", 3, NAU8825_REG_RDAC, 8, 0, NULL, 0), | |
1084 | SND_SOC_DAPM_PGA_S("ADACR Clock", 3, NAU8825_REG_RDAC, 9, 0, NULL, 0), | |
34ca27f3 AP |
1085 | |
1086 | SND_SOC_DAPM_DAC("DDACR", NULL, NAU8825_REG_ENA_CTRL, | |
1087 | NAU8825_ENABLE_DACR_SFT, 0), | |
1088 | SND_SOC_DAPM_DAC("DDACL", NULL, NAU8825_REG_ENA_CTRL, | |
1089 | NAU8825_ENABLE_DACL_SFT, 0), | |
1090 | SND_SOC_DAPM_SUPPLY("DDAC Clock", NAU8825_REG_ENA_CTRL, 6, 0, NULL, 0), | |
1091 | ||
1092 | SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &nau8825_dacl_mux), | |
1093 | SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &nau8825_dacr_mux), | |
1094 | ||
45d5eb3a JH |
1095 | SND_SOC_DAPM_PGA_S("HP amp L", 0, |
1096 | NAU8825_REG_CLASSG_CTRL, 1, 0, NULL, 0), | |
1097 | SND_SOC_DAPM_PGA_S("HP amp R", 0, | |
1098 | NAU8825_REG_CLASSG_CTRL, 2, 0, NULL, 0), | |
34ca27f3 | 1099 | |
45d5eb3a JH |
1100 | SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8825_REG_CHARGE_PUMP, 5, 0, |
1101 | nau8825_pump_event, SND_SOC_DAPM_POST_PMU | | |
1102 | SND_SOC_DAPM_PRE_PMD), | |
34ca27f3 | 1103 | |
45d5eb3a | 1104 | SND_SOC_DAPM_PGA_S("Output Driver R Stage 1", 4, |
34ca27f3 | 1105 | NAU8825_REG_POWER_UP_CONTROL, 5, 0, NULL, 0), |
45d5eb3a | 1106 | SND_SOC_DAPM_PGA_S("Output Driver L Stage 1", 4, |
34ca27f3 | 1107 | NAU8825_REG_POWER_UP_CONTROL, 4, 0, NULL, 0), |
45d5eb3a | 1108 | SND_SOC_DAPM_PGA_S("Output Driver R Stage 2", 5, |
34ca27f3 | 1109 | NAU8825_REG_POWER_UP_CONTROL, 3, 0, NULL, 0), |
45d5eb3a | 1110 | SND_SOC_DAPM_PGA_S("Output Driver L Stage 2", 5, |
34ca27f3 | 1111 | NAU8825_REG_POWER_UP_CONTROL, 2, 0, NULL, 0), |
45d5eb3a | 1112 | SND_SOC_DAPM_PGA_S("Output Driver R Stage 3", 6, |
34ca27f3 | 1113 | NAU8825_REG_POWER_UP_CONTROL, 1, 0, NULL, 0), |
45d5eb3a | 1114 | SND_SOC_DAPM_PGA_S("Output Driver L Stage 3", 6, |
34ca27f3 AP |
1115 | NAU8825_REG_POWER_UP_CONTROL, 0, 0, NULL, 0), |
1116 | ||
45d5eb3a JH |
1117 | SND_SOC_DAPM_PGA_S("Output DACL", 7, |
1118 | NAU8825_REG_CHARGE_PUMP, 8, 1, nau8825_output_dac_event, | |
1119 | SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
1120 | SND_SOC_DAPM_PGA_S("Output DACR", 7, | |
1121 | NAU8825_REG_CHARGE_PUMP, 9, 1, nau8825_output_dac_event, | |
1122 | SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
1123 | ||
1124 | /* HPOL/R are ungrounded by disabling 16 Ohm pull-downs on playback */ | |
1125 | SND_SOC_DAPM_PGA_S("HPOL Pulldown", 8, | |
1126 | NAU8825_REG_HSD_CTRL, 0, 1, NULL, 0), | |
1127 | SND_SOC_DAPM_PGA_S("HPOR Pulldown", 8, | |
1128 | NAU8825_REG_HSD_CTRL, 1, 1, NULL, 0), | |
1129 | ||
1130 | /* High current HPOL/R boost driver */ | |
1131 | SND_SOC_DAPM_PGA_S("HP Boost Driver", 9, | |
1132 | NAU8825_REG_BOOST, 9, 1, NULL, 0), | |
1133 | ||
1134 | /* Class G operation control*/ | |
1135 | SND_SOC_DAPM_PGA_S("Class G", 10, | |
1136 | NAU8825_REG_CLASSG_CTRL, 0, 0, NULL, 0), | |
34ca27f3 AP |
1137 | |
1138 | SND_SOC_DAPM_OUTPUT("HPOL"), | |
1139 | SND_SOC_DAPM_OUTPUT("HPOR"), | |
1140 | }; | |
1141 | ||
1142 | static const struct snd_soc_dapm_route nau8825_dapm_routes[] = { | |
1143 | {"Frontend PGA", NULL, "MIC"}, | |
1144 | {"ADC", NULL, "Frontend PGA"}, | |
1145 | {"ADC", NULL, "ADC Clock"}, | |
1146 | {"ADC", NULL, "ADC Power"}, | |
1147 | {"AIFTX", NULL, "ADC"}, | |
1148 | ||
1149 | {"DDACL", NULL, "Playback"}, | |
1150 | {"DDACR", NULL, "Playback"}, | |
1151 | {"DDACL", NULL, "DDAC Clock"}, | |
1152 | {"DDACR", NULL, "DDAC Clock"}, | |
1153 | {"DACL Mux", "DACL", "DDACL"}, | |
1154 | {"DACL Mux", "DACR", "DDACR"}, | |
1155 | {"DACR Mux", "DACL", "DDACL"}, | |
1156 | {"DACR Mux", "DACR", "DDACR"}, | |
1157 | {"HP amp L", NULL, "DACL Mux"}, | |
1158 | {"HP amp R", NULL, "DACR Mux"}, | |
45d5eb3a JH |
1159 | {"Charge Pump", NULL, "HP amp L"}, |
1160 | {"Charge Pump", NULL, "HP amp R"}, | |
1161 | {"ADACL", NULL, "Charge Pump"}, | |
1162 | {"ADACR", NULL, "Charge Pump"}, | |
1163 | {"ADACL Clock", NULL, "ADACL"}, | |
1164 | {"ADACR Clock", NULL, "ADACR"}, | |
1165 | {"Output Driver L Stage 1", NULL, "ADACL Clock"}, | |
1166 | {"Output Driver R Stage 1", NULL, "ADACR Clock"}, | |
34ca27f3 AP |
1167 | {"Output Driver L Stage 2", NULL, "Output Driver L Stage 1"}, |
1168 | {"Output Driver R Stage 2", NULL, "Output Driver R Stage 1"}, | |
1169 | {"Output Driver L Stage 3", NULL, "Output Driver L Stage 2"}, | |
1170 | {"Output Driver R Stage 3", NULL, "Output Driver R Stage 2"}, | |
1171 | {"Output DACL", NULL, "Output Driver L Stage 3"}, | |
1172 | {"Output DACR", NULL, "Output Driver R Stage 3"}, | |
45d5eb3a JH |
1173 | {"HPOL Pulldown", NULL, "Output DACL"}, |
1174 | {"HPOR Pulldown", NULL, "Output DACR"}, | |
1175 | {"HP Boost Driver", NULL, "HPOL Pulldown"}, | |
1176 | {"HP Boost Driver", NULL, "HPOR Pulldown"}, | |
1177 | {"Class G", NULL, "HP Boost Driver"}, | |
1178 | {"HPOL", NULL, "Class G"}, | |
1179 | {"HPOR", NULL, "Class G"}, | |
34ca27f3 AP |
1180 | }; |
1181 | ||
1182 | static int nau8825_hw_params(struct snd_pcm_substream *substream, | |
1183 | struct snd_pcm_hw_params *params, | |
1184 | struct snd_soc_dai *dai) | |
1185 | { | |
1186 | struct snd_soc_codec *codec = dai->codec; | |
1187 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1188 | unsigned int val_len = 0; | |
1189 | ||
ca6ac305 JH |
1190 | nau8825_sema_acquire(nau8825, 2 * HZ); |
1191 | ||
34ca27f3 AP |
1192 | switch (params_width(params)) { |
1193 | case 16: | |
1194 | val_len |= NAU8825_I2S_DL_16; | |
1195 | break; | |
1196 | case 20: | |
1197 | val_len |= NAU8825_I2S_DL_20; | |
1198 | break; | |
1199 | case 24: | |
1200 | val_len |= NAU8825_I2S_DL_24; | |
1201 | break; | |
1202 | case 32: | |
1203 | val_len |= NAU8825_I2S_DL_32; | |
1204 | break; | |
1205 | default: | |
1206 | return -EINVAL; | |
1207 | } | |
1208 | ||
1209 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1, | |
1210 | NAU8825_I2S_DL_MASK, val_len); | |
1211 | ||
ca6ac305 JH |
1212 | /* Release the semaphone. */ |
1213 | nau8825_sema_release(nau8825); | |
1214 | ||
34ca27f3 AP |
1215 | return 0; |
1216 | } | |
1217 | ||
1218 | static int nau8825_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
1219 | { | |
1220 | struct snd_soc_codec *codec = codec_dai->codec; | |
1221 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1222 | unsigned int ctrl1_val = 0, ctrl2_val = 0; | |
1223 | ||
ca6ac305 JH |
1224 | nau8825_sema_acquire(nau8825, 2 * HZ); |
1225 | ||
34ca27f3 AP |
1226 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
1227 | case SND_SOC_DAIFMT_CBM_CFM: | |
1228 | ctrl2_val |= NAU8825_I2S_MS_MASTER; | |
1229 | break; | |
1230 | case SND_SOC_DAIFMT_CBS_CFS: | |
1231 | break; | |
1232 | default: | |
1233 | return -EINVAL; | |
1234 | } | |
1235 | ||
1236 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
1237 | case SND_SOC_DAIFMT_NB_NF: | |
1238 | break; | |
1239 | case SND_SOC_DAIFMT_IB_NF: | |
1240 | ctrl1_val |= NAU8825_I2S_BP_INV; | |
1241 | break; | |
1242 | default: | |
1243 | return -EINVAL; | |
1244 | } | |
1245 | ||
1246 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
1247 | case SND_SOC_DAIFMT_I2S: | |
1248 | ctrl1_val |= NAU8825_I2S_DF_I2S; | |
1249 | break; | |
1250 | case SND_SOC_DAIFMT_LEFT_J: | |
1251 | ctrl1_val |= NAU8825_I2S_DF_LEFT; | |
1252 | break; | |
1253 | case SND_SOC_DAIFMT_RIGHT_J: | |
1254 | ctrl1_val |= NAU8825_I2S_DF_RIGTH; | |
1255 | break; | |
1256 | case SND_SOC_DAIFMT_DSP_A: | |
1257 | ctrl1_val |= NAU8825_I2S_DF_PCM_AB; | |
1258 | break; | |
1259 | case SND_SOC_DAIFMT_DSP_B: | |
1260 | ctrl1_val |= NAU8825_I2S_DF_PCM_AB; | |
1261 | ctrl1_val |= NAU8825_I2S_PCMB_EN; | |
1262 | break; | |
1263 | default: | |
1264 | return -EINVAL; | |
1265 | } | |
1266 | ||
1267 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1, | |
1268 | NAU8825_I2S_DL_MASK | NAU8825_I2S_DF_MASK | | |
1269 | NAU8825_I2S_BP_MASK | NAU8825_I2S_PCMB_MASK, | |
1270 | ctrl1_val); | |
1271 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
1272 | NAU8825_I2S_MS_MASK, ctrl2_val); | |
1273 | ||
ca6ac305 JH |
1274 | /* Release the semaphone. */ |
1275 | nau8825_sema_release(nau8825); | |
1276 | ||
34ca27f3 AP |
1277 | return 0; |
1278 | } | |
1279 | ||
1280 | static const struct snd_soc_dai_ops nau8825_dai_ops = { | |
1281 | .hw_params = nau8825_hw_params, | |
1282 | .set_fmt = nau8825_set_dai_fmt, | |
1283 | }; | |
1284 | ||
1285 | #define NAU8825_RATES SNDRV_PCM_RATE_8000_192000 | |
1286 | #define NAU8825_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \ | |
1287 | | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) | |
1288 | ||
1289 | static struct snd_soc_dai_driver nau8825_dai = { | |
1290 | .name = "nau8825-hifi", | |
1291 | .playback = { | |
1292 | .stream_name = "Playback", | |
1293 | .channels_min = 1, | |
1294 | .channels_max = 2, | |
1295 | .rates = NAU8825_RATES, | |
1296 | .formats = NAU8825_FORMATS, | |
1297 | }, | |
1298 | .capture = { | |
1299 | .stream_name = "Capture", | |
1300 | .channels_min = 1, | |
1301 | .channels_max = 1, | |
1302 | .rates = NAU8825_RATES, | |
1303 | .formats = NAU8825_FORMATS, | |
1304 | }, | |
1305 | .ops = &nau8825_dai_ops, | |
1306 | }; | |
1307 | ||
1308 | /** | |
1309 | * nau8825_enable_jack_detect - Specify a jack for event reporting | |
1310 | * | |
1311 | * @component: component to register the jack with | |
1312 | * @jack: jack to use to report headset and button events on | |
1313 | * | |
1314 | * After this function has been called the headset insert/remove and button | |
1315 | * events will be routed to the given jack. Jack can be null to stop | |
1316 | * reporting. | |
1317 | */ | |
1318 | int nau8825_enable_jack_detect(struct snd_soc_codec *codec, | |
1319 | struct snd_soc_jack *jack) | |
1320 | { | |
1321 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1322 | struct regmap *regmap = nau8825->regmap; | |
1323 | ||
1324 | nau8825->jack = jack; | |
1325 | ||
1326 | /* Ground HP Outputs[1:0], needed for headset auto detection | |
1327 | * Enable Automatic Mic/Gnd switching reading on insert interrupt[6] | |
1328 | */ | |
1329 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, | |
1330 | NAU8825_HSD_AUTO_MODE | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L, | |
1331 | NAU8825_HSD_AUTO_MODE | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L); | |
1332 | ||
34ca27f3 AP |
1333 | return 0; |
1334 | } | |
1335 | EXPORT_SYMBOL_GPL(nau8825_enable_jack_detect); | |
1336 | ||
1337 | ||
1338 | static bool nau8825_is_jack_inserted(struct regmap *regmap) | |
1339 | { | |
bff03e81 JH |
1340 | bool active_high, is_high; |
1341 | int status, jkdet; | |
34ca27f3 | 1342 | |
bff03e81 | 1343 | regmap_read(regmap, NAU8825_REG_JACK_DET_CTRL, &jkdet); |
308e3e0b | 1344 | active_high = jkdet & NAU8825_JACK_POLARITY; |
34ca27f3 | 1345 | regmap_read(regmap, NAU8825_REG_I2C_DEVICE_ID, &status); |
308e3e0b | 1346 | is_high = status & NAU8825_GPIO2JD1; |
bff03e81 JH |
1347 | /* return jack connection status according to jack insertion logic |
1348 | * active high or active low. | |
1349 | */ | |
1350 | return active_high == is_high; | |
34ca27f3 AP |
1351 | } |
1352 | ||
1353 | static void nau8825_restart_jack_detection(struct regmap *regmap) | |
1354 | { | |
1355 | /* this will restart the entire jack detection process including MIC/GND | |
1356 | * switching and create interrupts. We have to go from 0 to 1 and back | |
1357 | * to 0 to restart. | |
1358 | */ | |
1359 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1360 | NAU8825_JACK_DET_RESTART, NAU8825_JACK_DET_RESTART); | |
1361 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1362 | NAU8825_JACK_DET_RESTART, 0); | |
1363 | } | |
1364 | ||
2ec30f60 JH |
1365 | static void nau8825_int_status_clear_all(struct regmap *regmap) |
1366 | { | |
1367 | int active_irq, clear_irq, i; | |
1368 | ||
1369 | /* Reset the intrruption status from rightmost bit if the corres- | |
1370 | * ponding irq event occurs. | |
1371 | */ | |
1372 | regmap_read(regmap, NAU8825_REG_IRQ_STATUS, &active_irq); | |
1373 | for (i = 0; i < NAU8825_REG_DATA_LEN; i++) { | |
1374 | clear_irq = (0x1 << i); | |
1375 | if (active_irq & clear_irq) | |
1376 | regmap_write(regmap, | |
1377 | NAU8825_REG_INT_CLR_KEY_STATUS, clear_irq); | |
1378 | } | |
1379 | } | |
1380 | ||
34ca27f3 AP |
1381 | static void nau8825_eject_jack(struct nau8825 *nau8825) |
1382 | { | |
1383 | struct snd_soc_dapm_context *dapm = nau8825->dapm; | |
1384 | struct regmap *regmap = nau8825->regmap; | |
1385 | ||
b50455fa JH |
1386 | /* Force to cancel the cross talk detection process */ |
1387 | nau8825_xtalk_cancel(nau8825); | |
1388 | ||
34ca27f3 AP |
1389 | snd_soc_dapm_disable_pin(dapm, "SAR"); |
1390 | snd_soc_dapm_disable_pin(dapm, "MICBIAS"); | |
1391 | /* Detach 2kOhm Resistors from MICBIAS to MICGND1/2 */ | |
1392 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
1393 | NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, 0); | |
1394 | /* ground HPL/HPR, MICGRND1/2 */ | |
1395 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 0xf, 0xf); | |
1396 | ||
1397 | snd_soc_dapm_sync(dapm); | |
2ec30f60 JH |
1398 | |
1399 | /* Clear all interruption status */ | |
1400 | nau8825_int_status_clear_all(regmap); | |
1401 | ||
1402 | /* Enable the insertion interruption, disable the ejection inter- | |
1403 | * ruption, and then bypass de-bounce circuit. | |
1404 | */ | |
1405 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_DIS_CTRL, | |
1406 | NAU8825_IRQ_EJECT_DIS | NAU8825_IRQ_INSERT_DIS, | |
1407 | NAU8825_IRQ_EJECT_DIS); | |
1408 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
1409 | NAU8825_IRQ_OUTPUT_EN | NAU8825_IRQ_EJECT_EN | | |
1410 | NAU8825_IRQ_HEADSET_COMPLETE_EN | NAU8825_IRQ_INSERT_EN, | |
1411 | NAU8825_IRQ_OUTPUT_EN | NAU8825_IRQ_EJECT_EN | | |
1412 | NAU8825_IRQ_HEADSET_COMPLETE_EN); | |
1413 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1414 | NAU8825_JACK_DET_DB_BYPASS, NAU8825_JACK_DET_DB_BYPASS); | |
1415 | ||
1416 | /* Disable ADC needed for interruptions at audo mode */ | |
1417 | regmap_update_bits(regmap, NAU8825_REG_ENA_CTRL, | |
1418 | NAU8825_ENABLE_ADC, 0); | |
1419 | ||
1420 | /* Close clock for jack type detection at manual mode */ | |
1421 | nau8825_configure_sysclk(nau8825, NAU8825_CLK_DIS, 0); | |
1422 | } | |
1423 | ||
1424 | /* Enable audo mode interruptions with internal clock. */ | |
1425 | static void nau8825_setup_auto_irq(struct nau8825 *nau8825) | |
1426 | { | |
1427 | struct regmap *regmap = nau8825->regmap; | |
1428 | ||
1429 | /* Enable headset jack type detection complete interruption and | |
1430 | * jack ejection interruption. | |
1431 | */ | |
1432 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
1433 | NAU8825_IRQ_HEADSET_COMPLETE_EN | NAU8825_IRQ_EJECT_EN, 0); | |
1434 | ||
1435 | /* Enable internal VCO needed for interruptions */ | |
1436 | nau8825_configure_sysclk(nau8825, NAU8825_CLK_INTERNAL, 0); | |
1437 | ||
1438 | /* Enable ADC needed for interruptions */ | |
1439 | regmap_update_bits(regmap, NAU8825_REG_ENA_CTRL, | |
1440 | NAU8825_ENABLE_ADC, NAU8825_ENABLE_ADC); | |
1441 | ||
1442 | /* Chip needs one FSCLK cycle in order to generate interruptions, | |
1443 | * as we cannot guarantee one will be provided by the system. Turning | |
1444 | * master mode on then off enables us to generate that FSCLK cycle | |
1445 | * with a minimum of contention on the clock bus. | |
1446 | */ | |
1447 | regmap_update_bits(regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
1448 | NAU8825_I2S_MS_MASK, NAU8825_I2S_MS_MASTER); | |
1449 | regmap_update_bits(regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
1450 | NAU8825_I2S_MS_MASK, NAU8825_I2S_MS_SLAVE); | |
1451 | ||
1452 | /* Not bypass de-bounce circuit */ | |
1453 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1454 | NAU8825_JACK_DET_DB_BYPASS, 0); | |
1455 | ||
1456 | /* Unmask all interruptions */ | |
1457 | regmap_write(regmap, NAU8825_REG_INTERRUPT_DIS_CTRL, 0); | |
1458 | ||
1459 | /* Restart the jack detection process at auto mode */ | |
1460 | nau8825_restart_jack_detection(regmap); | |
34ca27f3 AP |
1461 | } |
1462 | ||
1463 | static int nau8825_button_decode(int value) | |
1464 | { | |
1465 | int buttons = 0; | |
1466 | ||
1467 | /* The chip supports up to 8 buttons, but ALSA defines only 6 buttons */ | |
1468 | if (value & BIT(0)) | |
1469 | buttons |= SND_JACK_BTN_0; | |
1470 | if (value & BIT(1)) | |
1471 | buttons |= SND_JACK_BTN_1; | |
1472 | if (value & BIT(2)) | |
1473 | buttons |= SND_JACK_BTN_2; | |
1474 | if (value & BIT(3)) | |
1475 | buttons |= SND_JACK_BTN_3; | |
1476 | if (value & BIT(4)) | |
1477 | buttons |= SND_JACK_BTN_4; | |
1478 | if (value & BIT(5)) | |
1479 | buttons |= SND_JACK_BTN_5; | |
1480 | ||
1481 | return buttons; | |
1482 | } | |
1483 | ||
1484 | static int nau8825_jack_insert(struct nau8825 *nau8825) | |
1485 | { | |
1486 | struct regmap *regmap = nau8825->regmap; | |
1487 | struct snd_soc_dapm_context *dapm = nau8825->dapm; | |
1488 | int jack_status_reg, mic_detected; | |
1489 | int type = 0; | |
1490 | ||
1491 | regmap_read(regmap, NAU8825_REG_GENERAL_STATUS, &jack_status_reg); | |
1492 | mic_detected = (jack_status_reg >> 10) & 3; | |
b50455fa JH |
1493 | /* The JKSLV and JKR2 all detected in high impedance headset */ |
1494 | if (mic_detected == 0x3) | |
1495 | nau8825->high_imped = true; | |
1496 | else | |
1497 | nau8825->high_imped = false; | |
34ca27f3 AP |
1498 | |
1499 | switch (mic_detected) { | |
1500 | case 0: | |
1501 | /* no mic */ | |
1502 | type = SND_JACK_HEADPHONE; | |
1503 | break; | |
1504 | case 1: | |
1505 | dev_dbg(nau8825->dev, "OMTP (micgnd1) mic connected\n"); | |
1506 | type = SND_JACK_HEADSET; | |
1507 | ||
1508 | /* Unground MICGND1 */ | |
1509 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 3 << 2, | |
1510 | 1 << 2); | |
1511 | /* Attach 2kOhm Resistor from MICBIAS to MICGND1 */ | |
1512 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
1513 | NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, | |
1514 | NAU8825_MICBIAS_JKR2); | |
1515 | /* Attach SARADC to MICGND1 */ | |
1516 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
1517 | NAU8825_SAR_INPUT_MASK, | |
1518 | NAU8825_SAR_INPUT_JKR2); | |
1519 | ||
1520 | snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); | |
1521 | snd_soc_dapm_force_enable_pin(dapm, "SAR"); | |
1522 | snd_soc_dapm_sync(dapm); | |
1523 | break; | |
1524 | case 2: | |
1525 | case 3: | |
1526 | dev_dbg(nau8825->dev, "CTIA (micgnd2) mic connected\n"); | |
1527 | type = SND_JACK_HEADSET; | |
1528 | ||
1529 | /* Unground MICGND2 */ | |
1530 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 3 << 2, | |
1531 | 2 << 2); | |
1532 | /* Attach 2kOhm Resistor from MICBIAS to MICGND2 */ | |
1533 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
1534 | NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, | |
1535 | NAU8825_MICBIAS_JKSLV); | |
1536 | /* Attach SARADC to MICGND2 */ | |
1537 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
1538 | NAU8825_SAR_INPUT_MASK, | |
1539 | NAU8825_SAR_INPUT_JKSLV); | |
1540 | ||
1541 | snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); | |
1542 | snd_soc_dapm_force_enable_pin(dapm, "SAR"); | |
1543 | snd_soc_dapm_sync(dapm); | |
1544 | break; | |
1545 | } | |
1546 | ||
45d5eb3a JH |
1547 | /* Leaving HPOL/R grounded after jack insert by default. They will be |
1548 | * ungrounded as part of the widget power up sequence at the beginning | |
1549 | * of playback to reduce pop. | |
1550 | */ | |
34ca27f3 AP |
1551 | return type; |
1552 | } | |
1553 | ||
1554 | #define NAU8825_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \ | |
1555 | SND_JACK_BTN_2 | SND_JACK_BTN_3) | |
1556 | ||
1557 | static irqreturn_t nau8825_interrupt(int irq, void *data) | |
1558 | { | |
1559 | struct nau8825 *nau8825 = (struct nau8825 *)data; | |
1560 | struct regmap *regmap = nau8825->regmap; | |
1561 | int active_irq, clear_irq = 0, event = 0, event_mask = 0; | |
1562 | ||
e6cee900 BZ |
1563 | if (regmap_read(regmap, NAU8825_REG_IRQ_STATUS, &active_irq)) { |
1564 | dev_err(nau8825->dev, "failed to read irq status\n"); | |
1565 | return IRQ_NONE; | |
1566 | } | |
34ca27f3 AP |
1567 | |
1568 | if ((active_irq & NAU8825_JACK_EJECTION_IRQ_MASK) == | |
1569 | NAU8825_JACK_EJECTION_DETECTED) { | |
1570 | ||
1571 | nau8825_eject_jack(nau8825); | |
1572 | event_mask |= SND_JACK_HEADSET; | |
1573 | clear_irq = NAU8825_JACK_EJECTION_IRQ_MASK; | |
1574 | } else if (active_irq & NAU8825_KEY_SHORT_PRESS_IRQ) { | |
1575 | int key_status; | |
1576 | ||
1577 | regmap_read(regmap, NAU8825_REG_INT_CLR_KEY_STATUS, | |
1578 | &key_status); | |
1579 | ||
1580 | /* upper 8 bits of the register are for short pressed keys, | |
1581 | * lower 8 bits - for long pressed buttons | |
1582 | */ | |
1583 | nau8825->button_pressed = nau8825_button_decode( | |
1584 | key_status >> 8); | |
1585 | ||
1586 | event |= nau8825->button_pressed; | |
1587 | event_mask |= NAU8825_BUTTONS; | |
1588 | clear_irq = NAU8825_KEY_SHORT_PRESS_IRQ; | |
1589 | } else if (active_irq & NAU8825_KEY_RELEASE_IRQ) { | |
1590 | event_mask = NAU8825_BUTTONS; | |
1591 | clear_irq = NAU8825_KEY_RELEASE_IRQ; | |
1592 | } else if (active_irq & NAU8825_HEADSET_COMPLETION_IRQ) { | |
1593 | if (nau8825_is_jack_inserted(regmap)) { | |
1594 | event |= nau8825_jack_insert(nau8825); | |
b50455fa JH |
1595 | if (!nau8825->high_imped) { |
1596 | /* Apply the cross talk suppression in the | |
1597 | * headset without high impedance. | |
1598 | */ | |
1599 | if (!nau8825->xtalk_protect) { | |
1600 | /* Raise protection for cross talk de- | |
1601 | * tection if no protection before. | |
1602 | * The driver has to cancel the pro- | |
1603 | * cess and restore changes if process | |
1604 | * is ongoing when ejection. | |
1605 | */ | |
06746c67 | 1606 | int ret; |
b50455fa | 1607 | nau8825->xtalk_protect = true; |
06746c67 JH |
1608 | ret = nau8825_sema_acquire(nau8825, 0); |
1609 | if (ret < 0) | |
1610 | nau8825->xtalk_protect = false; | |
b50455fa JH |
1611 | } |
1612 | /* Startup cross talk detection process */ | |
1613 | nau8825->xtalk_state = NAU8825_XTALK_PREPARE; | |
1614 | schedule_work(&nau8825->xtalk_work); | |
1615 | } else { | |
1616 | /* The cross talk suppression shouldn't apply | |
1617 | * in the headset with high impedance. Thus, | |
1618 | * relieve the protection raised before. | |
1619 | */ | |
1620 | if (nau8825->xtalk_protect) { | |
1621 | nau8825_sema_release(nau8825); | |
1622 | nau8825->xtalk_protect = false; | |
1623 | } | |
1624 | } | |
34ca27f3 AP |
1625 | } else { |
1626 | dev_warn(nau8825->dev, "Headset completion IRQ fired but no headset connected\n"); | |
1627 | nau8825_eject_jack(nau8825); | |
1628 | } | |
1629 | ||
1630 | event_mask |= SND_JACK_HEADSET; | |
1631 | clear_irq = NAU8825_HEADSET_COMPLETION_IRQ; | |
b50455fa JH |
1632 | /* Record the interruption report event for driver to report |
1633 | * the event later. The jack report will delay until cross | |
1634 | * talk detection process is done. | |
1635 | */ | |
1636 | if (nau8825->xtalk_state == NAU8825_XTALK_PREPARE) { | |
1637 | nau8825->xtalk_event = event; | |
1638 | nau8825->xtalk_event_mask = event_mask; | |
1639 | } | |
1640 | } else if (active_irq & NAU8825_IMPEDANCE_MEAS_IRQ) { | |
1641 | schedule_work(&nau8825->xtalk_work); | |
1642 | clear_irq = NAU8825_IMPEDANCE_MEAS_IRQ; | |
2ec30f60 JH |
1643 | } else if ((active_irq & NAU8825_JACK_INSERTION_IRQ_MASK) == |
1644 | NAU8825_JACK_INSERTION_DETECTED) { | |
1645 | /* One more step to check GPIO status directly. Thus, the | |
1646 | * driver can confirm the real insertion interruption because | |
1647 | * the intrruption at manual mode has bypassed debounce | |
1648 | * circuit which can get rid of unstable status. | |
1649 | */ | |
1650 | if (nau8825_is_jack_inserted(regmap)) { | |
1651 | /* Turn off insertion interruption at manual mode */ | |
1652 | regmap_update_bits(regmap, | |
1653 | NAU8825_REG_INTERRUPT_DIS_CTRL, | |
1654 | NAU8825_IRQ_INSERT_DIS, | |
1655 | NAU8825_IRQ_INSERT_DIS); | |
1656 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
1657 | NAU8825_IRQ_INSERT_EN, NAU8825_IRQ_INSERT_EN); | |
1658 | /* Enable interruption for jack type detection at audo | |
1659 | * mode which can detect microphone and jack type. | |
1660 | */ | |
1661 | nau8825_setup_auto_irq(nau8825); | |
1662 | } | |
34ca27f3 AP |
1663 | } |
1664 | ||
1665 | if (!clear_irq) | |
1666 | clear_irq = active_irq; | |
1667 | /* clears the rightmost interruption */ | |
1668 | regmap_write(regmap, NAU8825_REG_INT_CLR_KEY_STATUS, clear_irq); | |
1669 | ||
b50455fa JH |
1670 | /* Delay jack report until cross talk detection is done. It can avoid |
1671 | * application to do playback preparation when cross talk detection | |
1672 | * process is still working. Otherwise, the resource like clock and | |
1673 | * power will be issued by them at the same time and conflict happens. | |
1674 | */ | |
1675 | if (event_mask && nau8825->xtalk_state == NAU8825_XTALK_DONE) | |
34ca27f3 AP |
1676 | snd_soc_jack_report(nau8825->jack, event, event_mask); |
1677 | ||
1678 | return IRQ_HANDLED; | |
1679 | } | |
1680 | ||
1681 | static void nau8825_setup_buttons(struct nau8825 *nau8825) | |
1682 | { | |
1683 | struct regmap *regmap = nau8825->regmap; | |
1684 | ||
1685 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
1686 | NAU8825_SAR_TRACKING_GAIN_MASK, | |
1687 | nau8825->sar_voltage << NAU8825_SAR_TRACKING_GAIN_SFT); | |
1688 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
1689 | NAU8825_SAR_COMPARE_TIME_MASK, | |
1690 | nau8825->sar_compare_time << NAU8825_SAR_COMPARE_TIME_SFT); | |
1691 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
1692 | NAU8825_SAR_SAMPLING_TIME_MASK, | |
1693 | nau8825->sar_sampling_time << NAU8825_SAR_SAMPLING_TIME_SFT); | |
1694 | ||
1695 | regmap_update_bits(regmap, NAU8825_REG_KEYDET_CTRL, | |
1696 | NAU8825_KEYDET_LEVELS_NR_MASK, | |
1697 | (nau8825->sar_threshold_num - 1) << NAU8825_KEYDET_LEVELS_NR_SFT); | |
1698 | regmap_update_bits(regmap, NAU8825_REG_KEYDET_CTRL, | |
1699 | NAU8825_KEYDET_HYSTERESIS_MASK, | |
1700 | nau8825->sar_hysteresis << NAU8825_KEYDET_HYSTERESIS_SFT); | |
1701 | regmap_update_bits(regmap, NAU8825_REG_KEYDET_CTRL, | |
1702 | NAU8825_KEYDET_SHORTKEY_DEBOUNCE_MASK, | |
1703 | nau8825->key_debounce << NAU8825_KEYDET_SHORTKEY_DEBOUNCE_SFT); | |
1704 | ||
1705 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_1, | |
1706 | (nau8825->sar_threshold[0] << 8) | nau8825->sar_threshold[1]); | |
1707 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_2, | |
1708 | (nau8825->sar_threshold[2] << 8) | nau8825->sar_threshold[3]); | |
1709 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_3, | |
1710 | (nau8825->sar_threshold[4] << 8) | nau8825->sar_threshold[5]); | |
1711 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_4, | |
1712 | (nau8825->sar_threshold[6] << 8) | nau8825->sar_threshold[7]); | |
1713 | ||
1714 | /* Enable short press and release interruptions */ | |
1715 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
1716 | NAU8825_IRQ_KEY_SHORT_PRESS_EN | NAU8825_IRQ_KEY_RELEASE_EN, | |
1717 | 0); | |
1718 | } | |
1719 | ||
1720 | static void nau8825_init_regs(struct nau8825 *nau8825) | |
1721 | { | |
1722 | struct regmap *regmap = nau8825->regmap; | |
1723 | ||
45d5eb3a JH |
1724 | /* Latch IIC LSB value */ |
1725 | regmap_write(regmap, NAU8825_REG_IIC_ADDR_SET, 0x0001); | |
34ca27f3 AP |
1726 | /* Enable Bias/Vmid */ |
1727 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
1728 | NAU8825_BIAS_VMID, NAU8825_BIAS_VMID); | |
1729 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BOOST, | |
1730 | NAU8825_GLOBAL_BIAS_EN, NAU8825_GLOBAL_BIAS_EN); | |
1731 | ||
1732 | /* VMID Tieoff */ | |
1733 | regmap_update_bits(regmap, NAU8825_REG_BIAS_ADJ, | |
1734 | NAU8825_BIAS_VMID_SEL_MASK, | |
1735 | nau8825->vref_impedance << NAU8825_BIAS_VMID_SEL_SFT); | |
1736 | /* Disable Boost Driver, Automatic Short circuit protection enable */ | |
1737 | regmap_update_bits(regmap, NAU8825_REG_BOOST, | |
45d5eb3a JH |
1738 | NAU8825_PRECHARGE_DIS | NAU8825_HP_BOOST_DIS | |
1739 | NAU8825_HP_BOOST_G_DIS | NAU8825_SHORT_SHUTDOWN_EN, | |
1740 | NAU8825_PRECHARGE_DIS | NAU8825_HP_BOOST_DIS | | |
1741 | NAU8825_HP_BOOST_G_DIS | NAU8825_SHORT_SHUTDOWN_EN); | |
34ca27f3 AP |
1742 | |
1743 | regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL, | |
1744 | NAU8825_JKDET_OUTPUT_EN, | |
1745 | nau8825->jkdet_enable ? 0 : NAU8825_JKDET_OUTPUT_EN); | |
1746 | regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL, | |
1747 | NAU8825_JKDET_PULL_EN, | |
1748 | nau8825->jkdet_pull_enable ? 0 : NAU8825_JKDET_PULL_EN); | |
1749 | regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL, | |
1750 | NAU8825_JKDET_PULL_UP, | |
1751 | nau8825->jkdet_pull_up ? NAU8825_JKDET_PULL_UP : 0); | |
1752 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1753 | NAU8825_JACK_POLARITY, | |
1754 | /* jkdet_polarity - 1 is for active-low */ | |
1755 | nau8825->jkdet_polarity ? 0 : NAU8825_JACK_POLARITY); | |
1756 | ||
1757 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1758 | NAU8825_JACK_INSERT_DEBOUNCE_MASK, | |
1759 | nau8825->jack_insert_debounce << NAU8825_JACK_INSERT_DEBOUNCE_SFT); | |
1760 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
1761 | NAU8825_JACK_EJECT_DEBOUNCE_MASK, | |
1762 | nau8825->jack_eject_debounce << NAU8825_JACK_EJECT_DEBOUNCE_SFT); | |
1763 | ||
1764 | /* Mask unneeded IRQs: 1 - disable, 0 - enable */ | |
1765 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, 0x7ff, 0x7ff); | |
1766 | ||
1767 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
1768 | NAU8825_MICBIAS_VOLTAGE_MASK, nau8825->micbias_voltage); | |
1769 | ||
1770 | if (nau8825->sar_threshold_num) | |
1771 | nau8825_setup_buttons(nau8825); | |
1772 | ||
1773 | /* Default oversampling/decimations settings are unusable | |
1774 | * (audible hiss). Set it to something better. | |
1775 | */ | |
1776 | regmap_update_bits(regmap, NAU8825_REG_ADC_RATE, | |
1777 | NAU8825_ADC_SYNC_DOWN_MASK, NAU8825_ADC_SYNC_DOWN_128); | |
1778 | regmap_update_bits(regmap, NAU8825_REG_DAC_CTRL1, | |
1779 | NAU8825_DAC_OVERSAMPLE_MASK, NAU8825_DAC_OVERSAMPLE_128); | |
45d5eb3a JH |
1780 | /* Disable DACR/L power */ |
1781 | regmap_update_bits(regmap, NAU8825_REG_CHARGE_PUMP, | |
1782 | NAU8825_POWER_DOWN_DACR | NAU8825_POWER_DOWN_DACL, | |
1783 | NAU8825_POWER_DOWN_DACR | NAU8825_POWER_DOWN_DACL); | |
1784 | /* Enable TESTDAC. This sets the analog DAC inputs to a '0' input | |
1785 | * signal to avoid any glitches due to power up transients in both | |
1786 | * the analog and digital DAC circuit. | |
1787 | */ | |
1788 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
1789 | NAU8825_BIAS_TESTDAC_EN, NAU8825_BIAS_TESTDAC_EN); | |
1790 | /* CICCLP off */ | |
1791 | regmap_update_bits(regmap, NAU8825_REG_DAC_CTRL1, | |
1792 | NAU8825_DAC_CLIP_OFF, NAU8825_DAC_CLIP_OFF); | |
1793 | ||
1794 | /* Class AB bias current to 2x, DAC Capacitor enable MSB/LSB */ | |
1795 | regmap_update_bits(regmap, NAU8825_REG_ANALOG_CONTROL_2, | |
1796 | NAU8825_HP_NON_CLASSG_CURRENT_2xADJ | | |
1797 | NAU8825_DAC_CAPACITOR_MSB | NAU8825_DAC_CAPACITOR_LSB, | |
1798 | NAU8825_HP_NON_CLASSG_CURRENT_2xADJ | | |
1799 | NAU8825_DAC_CAPACITOR_MSB | NAU8825_DAC_CAPACITOR_LSB); | |
1800 | /* Class G timer 64ms */ | |
1801 | regmap_update_bits(regmap, NAU8825_REG_CLASSG_CTRL, | |
1802 | NAU8825_CLASSG_TIMER_MASK, | |
1803 | 0x20 << NAU8825_CLASSG_TIMER_SFT); | |
1804 | /* DAC clock delay 2ns, VREF */ | |
1805 | regmap_update_bits(regmap, NAU8825_REG_RDAC, | |
1806 | NAU8825_RDAC_CLK_DELAY_MASK | NAU8825_RDAC_VREF_MASK, | |
1807 | (0x2 << NAU8825_RDAC_CLK_DELAY_SFT) | | |
1808 | (0x3 << NAU8825_RDAC_VREF_SFT)); | |
3f039169 JH |
1809 | /* Config L/R channel */ |
1810 | regmap_update_bits(nau8825->regmap, NAU8825_REG_DACL_CTRL, | |
1811 | NAU8825_DACL_CH_SEL_MASK, NAU8825_DACL_CH_SEL_L); | |
1812 | regmap_update_bits(nau8825->regmap, NAU8825_REG_DACR_CTRL, | |
1813 | NAU8825_DACL_CH_SEL_MASK, NAU8825_DACL_CH_SEL_R); | |
34ca27f3 AP |
1814 | } |
1815 | ||
1816 | static const struct regmap_config nau8825_regmap_config = { | |
2ec30f60 JH |
1817 | .val_bits = NAU8825_REG_DATA_LEN, |
1818 | .reg_bits = NAU8825_REG_ADDR_LEN, | |
34ca27f3 AP |
1819 | |
1820 | .max_register = NAU8825_REG_MAX, | |
1821 | .readable_reg = nau8825_readable_reg, | |
1822 | .writeable_reg = nau8825_writeable_reg, | |
1823 | .volatile_reg = nau8825_volatile_reg, | |
1824 | ||
1825 | .cache_type = REGCACHE_RBTREE, | |
1826 | .reg_defaults = nau8825_reg_defaults, | |
1827 | .num_reg_defaults = ARRAY_SIZE(nau8825_reg_defaults), | |
1828 | }; | |
1829 | ||
1830 | static int nau8825_codec_probe(struct snd_soc_codec *codec) | |
1831 | { | |
1832 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1833 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); | |
1834 | ||
1835 | nau8825->dapm = dapm; | |
1836 | ||
34ca27f3 AP |
1837 | return 0; |
1838 | } | |
1839 | ||
b50455fa JH |
1840 | static int nau8825_codec_remove(struct snd_soc_codec *codec) |
1841 | { | |
1842 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1843 | ||
1844 | /* Cancel and reset cross tak suppresstion detection funciton */ | |
1845 | nau8825_xtalk_cancel(nau8825); | |
1846 | ||
1847 | return 0; | |
1848 | } | |
1849 | ||
c86ba612 BZ |
1850 | /** |
1851 | * nau8825_calc_fll_param - Calculate FLL parameters. | |
1852 | * @fll_in: external clock provided to codec. | |
1853 | * @fs: sampling rate. | |
1854 | * @fll_param: Pointer to structure of FLL parameters. | |
1855 | * | |
1856 | * Calculate FLL parameters to configure codec. | |
1857 | * | |
1858 | * Returns 0 for success or negative error code. | |
1859 | */ | |
1860 | static int nau8825_calc_fll_param(unsigned int fll_in, unsigned int fs, | |
1861 | struct nau8825_fll *fll_param) | |
1862 | { | |
407c71b6 JH |
1863 | u64 fvco, fvco_max; |
1864 | unsigned int fref, i, fvco_sel; | |
c86ba612 BZ |
1865 | |
1866 | /* Ensure the reference clock frequency (FREF) is <= 13.5MHz by dividing | |
1867 | * freq_in by 1, 2, 4, or 8 using FLL pre-scalar. | |
1868 | * FREF = freq_in / NAU8825_FLL_REF_DIV_MASK | |
1869 | */ | |
1870 | for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) { | |
1871 | fref = fll_in / fll_pre_scalar[i].param; | |
1872 | if (fref <= NAU_FREF_MAX) | |
1873 | break; | |
1874 | } | |
1875 | if (i == ARRAY_SIZE(fll_pre_scalar)) | |
1876 | return -EINVAL; | |
1877 | fll_param->clk_ref_div = fll_pre_scalar[i].val; | |
1878 | ||
1879 | /* Choose the FLL ratio based on FREF */ | |
1880 | for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) { | |
1881 | if (fref >= fll_ratio[i].param) | |
1882 | break; | |
1883 | } | |
1884 | if (i == ARRAY_SIZE(fll_ratio)) | |
1885 | return -EINVAL; | |
1886 | fll_param->ratio = fll_ratio[i].val; | |
1887 | ||
1888 | /* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs. | |
407c71b6 | 1889 | * FDCO must be within the 90MHz - 124MHz or the FFL cannot be |
c86ba612 BZ |
1890 | * guaranteed across the full range of operation. |
1891 | * FDCO = freq_out * 2 * mclk_src_scaling | |
1892 | */ | |
407c71b6 JH |
1893 | fvco_max = 0; |
1894 | fvco_sel = ARRAY_SIZE(mclk_src_scaling); | |
c86ba612 BZ |
1895 | for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) { |
1896 | fvco = 256 * fs * 2 * mclk_src_scaling[i].param; | |
407c71b6 JH |
1897 | if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX && |
1898 | fvco_max < fvco) { | |
1899 | fvco_max = fvco; | |
1900 | fvco_sel = i; | |
1901 | } | |
c86ba612 | 1902 | } |
407c71b6 | 1903 | if (ARRAY_SIZE(mclk_src_scaling) == fvco_sel) |
c86ba612 | 1904 | return -EINVAL; |
407c71b6 | 1905 | fll_param->mclk_src = mclk_src_scaling[fvco_sel].val; |
c86ba612 BZ |
1906 | |
1907 | /* Calculate the FLL 10-bit integer input and the FLL 16-bit fractional | |
1908 | * input based on FDCO, FREF and FLL ratio. | |
1909 | */ | |
1910 | fvco = div_u64(fvco << 16, fref * fll_param->ratio); | |
1911 | fll_param->fll_int = (fvco >> 16) & 0x3FF; | |
1912 | fll_param->fll_frac = fvco & 0xFFFF; | |
1913 | return 0; | |
1914 | } | |
1915 | ||
1916 | static void nau8825_fll_apply(struct nau8825 *nau8825, | |
1917 | struct nau8825_fll *fll_param) | |
1918 | { | |
1919 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLK_DIVIDER, | |
407c71b6 JH |
1920 | NAU8825_CLK_SRC_MASK | NAU8825_CLK_MCLK_SRC_MASK, |
1921 | NAU8825_CLK_SRC_MCLK | fll_param->mclk_src); | |
c86ba612 BZ |
1922 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL1, |
1923 | NAU8825_FLL_RATIO_MASK, fll_param->ratio); | |
1924 | /* FLL 16-bit fractional input */ | |
1925 | regmap_write(nau8825->regmap, NAU8825_REG_FLL2, fll_param->fll_frac); | |
1926 | /* FLL 10-bit integer input */ | |
1927 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL3, | |
1928 | NAU8825_FLL_INTEGER_MASK, fll_param->fll_int); | |
1929 | /* FLL pre-scaler */ | |
1930 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL4, | |
1931 | NAU8825_FLL_REF_DIV_MASK, fll_param->clk_ref_div); | |
1932 | /* select divided VCO input */ | |
1933 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL5, | |
407c71b6 JH |
1934 | NAU8825_FLL_CLK_SW_MASK, NAU8825_FLL_CLK_SW_REF); |
1935 | /* Disable free-running mode */ | |
1936 | regmap_update_bits(nau8825->regmap, | |
1937 | NAU8825_REG_FLL6, NAU8825_DCO_EN, 0); | |
1938 | if (fll_param->fll_frac) { | |
1939 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL5, | |
1940 | NAU8825_FLL_PDB_DAC_EN | NAU8825_FLL_LOOP_FTR_EN | | |
1941 | NAU8825_FLL_FTR_SW_MASK, | |
1942 | NAU8825_FLL_PDB_DAC_EN | NAU8825_FLL_LOOP_FTR_EN | | |
1943 | NAU8825_FLL_FTR_SW_FILTER); | |
1944 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL6, | |
1945 | NAU8825_SDM_EN, NAU8825_SDM_EN); | |
1946 | } else { | |
1947 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL5, | |
1948 | NAU8825_FLL_PDB_DAC_EN | NAU8825_FLL_LOOP_FTR_EN | | |
1949 | NAU8825_FLL_FTR_SW_MASK, NAU8825_FLL_FTR_SW_ACCU); | |
1950 | regmap_update_bits(nau8825->regmap, | |
1951 | NAU8825_REG_FLL6, NAU8825_SDM_EN, 0); | |
1952 | } | |
c86ba612 BZ |
1953 | } |
1954 | ||
1955 | /* freq_out must be 256*Fs in order to achieve the best performance */ | |
1956 | static int nau8825_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
1957 | unsigned int freq_in, unsigned int freq_out) | |
1958 | { | |
1959 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1960 | struct nau8825_fll fll_param; | |
1961 | int ret, fs; | |
1962 | ||
1963 | fs = freq_out / 256; | |
1964 | ret = nau8825_calc_fll_param(freq_in, fs, &fll_param); | |
1965 | if (ret < 0) { | |
1966 | dev_err(codec->dev, "Unsupported input clock %d\n", freq_in); | |
1967 | return ret; | |
1968 | } | |
1969 | dev_dbg(codec->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n", | |
1970 | fll_param.mclk_src, fll_param.ratio, fll_param.fll_frac, | |
1971 | fll_param.fll_int, fll_param.clk_ref_div); | |
1972 | ||
1973 | nau8825_fll_apply(nau8825, &fll_param); | |
1974 | mdelay(2); | |
1975 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLK_DIVIDER, | |
1976 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_VCO); | |
1977 | return 0; | |
1978 | } | |
1979 | ||
70543c30 JH |
1980 | static int nau8825_mclk_prepare(struct nau8825 *nau8825, unsigned int freq) |
1981 | { | |
1982 | int ret = 0; | |
1983 | ||
1984 | nau8825->mclk = devm_clk_get(nau8825->dev, "mclk"); | |
1985 | if (IS_ERR(nau8825->mclk)) { | |
1986 | dev_info(nau8825->dev, "No 'mclk' clock found, assume MCLK is managed externally"); | |
1987 | return 0; | |
1988 | } | |
1989 | ||
1990 | if (!nau8825->mclk_freq) { | |
1991 | ret = clk_prepare_enable(nau8825->mclk); | |
1992 | if (ret) { | |
1993 | dev_err(nau8825->dev, "Unable to prepare codec mclk\n"); | |
1994 | return ret; | |
1995 | } | |
1996 | } | |
1997 | ||
1998 | if (nau8825->mclk_freq != freq) { | |
1999 | freq = clk_round_rate(nau8825->mclk, freq); | |
2000 | ret = clk_set_rate(nau8825->mclk, freq); | |
2001 | if (ret) { | |
2002 | dev_err(nau8825->dev, "Unable to set mclk rate\n"); | |
2003 | return ret; | |
2004 | } | |
2005 | nau8825->mclk_freq = freq; | |
2006 | } | |
2007 | ||
2008 | return 0; | |
2009 | } | |
2010 | ||
2ec30f60 JH |
2011 | static void nau8825_configure_mclk_as_sysclk(struct regmap *regmap) |
2012 | { | |
2013 | regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER, | |
2014 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_MCLK); | |
2015 | regmap_update_bits(regmap, NAU8825_REG_FLL6, | |
2016 | NAU8825_DCO_EN, 0); | |
2017 | } | |
2018 | ||
34ca27f3 AP |
2019 | static int nau8825_configure_sysclk(struct nau8825 *nau8825, int clk_id, |
2020 | unsigned int freq) | |
2021 | { | |
2022 | struct regmap *regmap = nau8825->regmap; | |
2023 | int ret; | |
2024 | ||
2025 | switch (clk_id) { | |
2ec30f60 JH |
2026 | case NAU8825_CLK_DIS: |
2027 | /* Clock provided externally and disable internal VCO clock */ | |
2028 | nau8825_configure_mclk_as_sysclk(regmap); | |
2029 | if (nau8825->mclk_freq) { | |
2030 | clk_disable_unprepare(nau8825->mclk); | |
2031 | nau8825->mclk_freq = 0; | |
2032 | } | |
2033 | ||
2034 | break; | |
34ca27f3 | 2035 | case NAU8825_CLK_MCLK: |
b50455fa JH |
2036 | /* Acquire the semaphone to synchronize the playback and |
2037 | * interrupt handler. In order to avoid the playback inter- | |
2038 | * fered by cross talk process, the driver make the playback | |
2039 | * preparation halted until cross talk process finish. | |
2040 | */ | |
2041 | nau8825_sema_acquire(nau8825, 2 * HZ); | |
2ec30f60 | 2042 | nau8825_configure_mclk_as_sysclk(regmap); |
3a561035 JH |
2043 | /* MCLK not changed by clock tree */ |
2044 | regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER, | |
2045 | NAU8825_CLK_MCLK_SRC_MASK, 0); | |
b50455fa JH |
2046 | /* Release the semaphone. */ |
2047 | nau8825_sema_release(nau8825); | |
2048 | ||
70543c30 JH |
2049 | ret = nau8825_mclk_prepare(nau8825, freq); |
2050 | if (ret) | |
2051 | return ret; | |
34ca27f3 AP |
2052 | |
2053 | break; | |
2054 | case NAU8825_CLK_INTERNAL: | |
2ec30f60 JH |
2055 | if (nau8825_is_jack_inserted(nau8825->regmap)) { |
2056 | regmap_update_bits(regmap, NAU8825_REG_FLL6, | |
2057 | NAU8825_DCO_EN, NAU8825_DCO_EN); | |
2058 | regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER, | |
2059 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_VCO); | |
2060 | /* Decrease the VCO frequency for power saving */ | |
2061 | regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER, | |
2062 | NAU8825_CLK_MCLK_SRC_MASK, 0xf); | |
2063 | regmap_update_bits(regmap, NAU8825_REG_FLL1, | |
2064 | NAU8825_FLL_RATIO_MASK, 0x10); | |
2065 | regmap_update_bits(regmap, NAU8825_REG_FLL6, | |
2066 | NAU8825_SDM_EN, NAU8825_SDM_EN); | |
2067 | } else { | |
2068 | /* The clock turns off intentionally for power saving | |
2069 | * when no headset connected. | |
2070 | */ | |
2071 | nau8825_configure_mclk_as_sysclk(regmap); | |
2072 | dev_warn(nau8825->dev, "Disable clock for power saving when no headset connected\n"); | |
2073 | } | |
70543c30 JH |
2074 | if (nau8825->mclk_freq) { |
2075 | clk_disable_unprepare(nau8825->mclk); | |
2076 | nau8825->mclk_freq = 0; | |
2077 | } | |
2078 | ||
2079 | break; | |
2080 | case NAU8825_CLK_FLL_MCLK: | |
b50455fa JH |
2081 | /* Acquire the semaphone to synchronize the playback and |
2082 | * interrupt handler. In order to avoid the playback inter- | |
2083 | * fered by cross talk process, the driver make the playback | |
2084 | * preparation halted until cross talk process finish. | |
2085 | */ | |
2086 | nau8825_sema_acquire(nau8825, 2 * HZ); | |
70543c30 JH |
2087 | regmap_update_bits(regmap, NAU8825_REG_FLL3, |
2088 | NAU8825_FLL_CLK_SRC_MASK, NAU8825_FLL_CLK_SRC_MCLK); | |
b50455fa JH |
2089 | /* Release the semaphone. */ |
2090 | nau8825_sema_release(nau8825); | |
2091 | ||
70543c30 JH |
2092 | ret = nau8825_mclk_prepare(nau8825, freq); |
2093 | if (ret) | |
2094 | return ret; | |
2095 | ||
2096 | break; | |
2097 | case NAU8825_CLK_FLL_BLK: | |
b50455fa JH |
2098 | /* Acquire the semaphone to synchronize the playback and |
2099 | * interrupt handler. In order to avoid the playback inter- | |
2100 | * fered by cross talk process, the driver make the playback | |
2101 | * preparation halted until cross talk process finish. | |
2102 | */ | |
2103 | nau8825_sema_acquire(nau8825, 2 * HZ); | |
70543c30 JH |
2104 | regmap_update_bits(regmap, NAU8825_REG_FLL3, |
2105 | NAU8825_FLL_CLK_SRC_MASK, NAU8825_FLL_CLK_SRC_BLK); | |
b50455fa JH |
2106 | /* Release the semaphone. */ |
2107 | nau8825_sema_release(nau8825); | |
2108 | ||
70543c30 JH |
2109 | if (nau8825->mclk_freq) { |
2110 | clk_disable_unprepare(nau8825->mclk); | |
2111 | nau8825->mclk_freq = 0; | |
2112 | } | |
34ca27f3 | 2113 | |
70543c30 JH |
2114 | break; |
2115 | case NAU8825_CLK_FLL_FS: | |
b50455fa JH |
2116 | /* Acquire the semaphone to synchronize the playback and |
2117 | * interrupt handler. In order to avoid the playback inter- | |
2118 | * fered by cross talk process, the driver make the playback | |
2119 | * preparation halted until cross talk process finish. | |
2120 | */ | |
2121 | nau8825_sema_acquire(nau8825, 2 * HZ); | |
70543c30 JH |
2122 | regmap_update_bits(regmap, NAU8825_REG_FLL3, |
2123 | NAU8825_FLL_CLK_SRC_MASK, NAU8825_FLL_CLK_SRC_FS); | |
b50455fa JH |
2124 | /* Release the semaphone. */ |
2125 | nau8825_sema_release(nau8825); | |
2126 | ||
34ca27f3 AP |
2127 | if (nau8825->mclk_freq) { |
2128 | clk_disable_unprepare(nau8825->mclk); | |
2129 | nau8825->mclk_freq = 0; | |
2130 | } | |
2131 | ||
2132 | break; | |
2133 | default: | |
2134 | dev_err(nau8825->dev, "Invalid clock id (%d)\n", clk_id); | |
2135 | return -EINVAL; | |
2136 | } | |
2137 | ||
2138 | dev_dbg(nau8825->dev, "Sysclk is %dHz and clock id is %d\n", freq, | |
2139 | clk_id); | |
2140 | return 0; | |
2141 | } | |
2142 | ||
2143 | static int nau8825_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
2144 | int source, unsigned int freq, int dir) | |
2145 | { | |
2146 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
2147 | ||
2148 | return nau8825_configure_sysclk(nau8825, clk_id, freq); | |
2149 | } | |
2150 | ||
2ec30f60 JH |
2151 | static int nau8825_resume_setup(struct nau8825 *nau8825) |
2152 | { | |
2153 | struct regmap *regmap = nau8825->regmap; | |
2154 | ||
2155 | /* Close clock when jack type detection at manual mode */ | |
2156 | nau8825_configure_sysclk(nau8825, NAU8825_CLK_DIS, 0); | |
2157 | ||
2158 | /* Clear all interruption status */ | |
2159 | nau8825_int_status_clear_all(regmap); | |
2160 | ||
2161 | /* Enable both insertion and ejection interruptions, and then | |
2162 | * bypass de-bounce circuit. | |
2163 | */ | |
2164 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
2165 | NAU8825_IRQ_OUTPUT_EN | NAU8825_IRQ_HEADSET_COMPLETE_EN | | |
2166 | NAU8825_IRQ_EJECT_EN | NAU8825_IRQ_INSERT_EN, | |
2167 | NAU8825_IRQ_OUTPUT_EN | NAU8825_IRQ_HEADSET_COMPLETE_EN); | |
2168 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
2169 | NAU8825_JACK_DET_DB_BYPASS, NAU8825_JACK_DET_DB_BYPASS); | |
2170 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_DIS_CTRL, | |
2171 | NAU8825_IRQ_INSERT_DIS | NAU8825_IRQ_EJECT_DIS, 0); | |
2172 | ||
2173 | return 0; | |
2174 | } | |
2175 | ||
34ca27f3 AP |
2176 | static int nau8825_set_bias_level(struct snd_soc_codec *codec, |
2177 | enum snd_soc_bias_level level) | |
2178 | { | |
2179 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
2180 | int ret; | |
2181 | ||
2182 | switch (level) { | |
2183 | case SND_SOC_BIAS_ON: | |
2184 | break; | |
2185 | ||
2186 | case SND_SOC_BIAS_PREPARE: | |
2187 | break; | |
2188 | ||
2189 | case SND_SOC_BIAS_STANDBY: | |
2190 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { | |
2191 | if (nau8825->mclk_freq) { | |
2192 | ret = clk_prepare_enable(nau8825->mclk); | |
2193 | if (ret) { | |
2194 | dev_err(nau8825->dev, "Unable to prepare codec mclk\n"); | |
2195 | return ret; | |
2196 | } | |
2197 | } | |
2ec30f60 JH |
2198 | /* Setup codec configuration after resume */ |
2199 | nau8825_resume_setup(nau8825); | |
34ca27f3 | 2200 | } |
34ca27f3 AP |
2201 | break; |
2202 | ||
2203 | case SND_SOC_BIAS_OFF: | |
b50455fa JH |
2204 | /* Cancel and reset cross talk detection funciton */ |
2205 | nau8825_xtalk_cancel(nau8825); | |
2ec30f60 JH |
2206 | /* Turn off all interruptions before system shutdown. Keep the |
2207 | * interruption quiet before resume setup completes. | |
2208 | */ | |
2209 | regmap_write(nau8825->regmap, | |
2210 | NAU8825_REG_INTERRUPT_DIS_CTRL, 0xffff); | |
2211 | /* Disable ADC needed for interruptions at audo mode */ | |
2212 | regmap_update_bits(nau8825->regmap, NAU8825_REG_ENA_CTRL, | |
2213 | NAU8825_ENABLE_ADC, 0); | |
34ca27f3 AP |
2214 | if (nau8825->mclk_freq) |
2215 | clk_disable_unprepare(nau8825->mclk); | |
34ca27f3 AP |
2216 | break; |
2217 | } | |
2218 | return 0; | |
2219 | } | |
2220 | ||
4983d325 | 2221 | static int __maybe_unused nau8825_suspend(struct snd_soc_codec *codec) |
e6cee900 BZ |
2222 | { |
2223 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
2224 | ||
2225 | disable_irq(nau8825->irq); | |
2ec30f60 | 2226 | snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF); |
e6cee900 BZ |
2227 | regcache_cache_only(nau8825->regmap, true); |
2228 | regcache_mark_dirty(nau8825->regmap); | |
2229 | ||
2230 | return 0; | |
2231 | } | |
2232 | ||
4983d325 | 2233 | static int __maybe_unused nau8825_resume(struct snd_soc_codec *codec) |
e6cee900 BZ |
2234 | { |
2235 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
06746c67 | 2236 | int ret; |
e6cee900 | 2237 | |
e6cee900 BZ |
2238 | regcache_cache_only(nau8825->regmap, false); |
2239 | regcache_sync(nau8825->regmap); | |
ca6ac305 | 2240 | nau8825->xtalk_protect = true; |
06746c67 JH |
2241 | ret = nau8825_sema_acquire(nau8825, 0); |
2242 | if (ret < 0) | |
2243 | nau8825->xtalk_protect = false; | |
e6cee900 BZ |
2244 | enable_irq(nau8825->irq); |
2245 | ||
e6cee900 BZ |
2246 | return 0; |
2247 | } | |
e6cee900 | 2248 | |
34ca27f3 AP |
2249 | static struct snd_soc_codec_driver nau8825_codec_driver = { |
2250 | .probe = nau8825_codec_probe, | |
b50455fa | 2251 | .remove = nau8825_codec_remove, |
34ca27f3 | 2252 | .set_sysclk = nau8825_set_sysclk, |
c86ba612 | 2253 | .set_pll = nau8825_set_pll, |
34ca27f3 AP |
2254 | .set_bias_level = nau8825_set_bias_level, |
2255 | .suspend_bias_off = true, | |
e6cee900 BZ |
2256 | .suspend = nau8825_suspend, |
2257 | .resume = nau8825_resume, | |
34ca27f3 AP |
2258 | |
2259 | .controls = nau8825_controls, | |
2260 | .num_controls = ARRAY_SIZE(nau8825_controls), | |
2261 | .dapm_widgets = nau8825_dapm_widgets, | |
2262 | .num_dapm_widgets = ARRAY_SIZE(nau8825_dapm_widgets), | |
2263 | .dapm_routes = nau8825_dapm_routes, | |
2264 | .num_dapm_routes = ARRAY_SIZE(nau8825_dapm_routes), | |
2265 | }; | |
2266 | ||
2267 | static void nau8825_reset_chip(struct regmap *regmap) | |
2268 | { | |
2269 | regmap_write(regmap, NAU8825_REG_RESET, 0x00); | |
2270 | regmap_write(regmap, NAU8825_REG_RESET, 0x00); | |
2271 | } | |
2272 | ||
218d2ce2 BZ |
2273 | static void nau8825_print_device_properties(struct nau8825 *nau8825) |
2274 | { | |
2275 | int i; | |
2276 | struct device *dev = nau8825->dev; | |
2277 | ||
2278 | dev_dbg(dev, "jkdet-enable: %d\n", nau8825->jkdet_enable); | |
2279 | dev_dbg(dev, "jkdet-pull-enable: %d\n", nau8825->jkdet_pull_enable); | |
2280 | dev_dbg(dev, "jkdet-pull-up: %d\n", nau8825->jkdet_pull_up); | |
2281 | dev_dbg(dev, "jkdet-polarity: %d\n", nau8825->jkdet_polarity); | |
2282 | dev_dbg(dev, "micbias-voltage: %d\n", nau8825->micbias_voltage); | |
2283 | dev_dbg(dev, "vref-impedance: %d\n", nau8825->vref_impedance); | |
2284 | ||
2285 | dev_dbg(dev, "sar-threshold-num: %d\n", nau8825->sar_threshold_num); | |
2286 | for (i = 0; i < nau8825->sar_threshold_num; i++) | |
2287 | dev_dbg(dev, "sar-threshold[%d]=%d\n", i, | |
2288 | nau8825->sar_threshold[i]); | |
2289 | ||
2290 | dev_dbg(dev, "sar-hysteresis: %d\n", nau8825->sar_hysteresis); | |
2291 | dev_dbg(dev, "sar-voltage: %d\n", nau8825->sar_voltage); | |
2292 | dev_dbg(dev, "sar-compare-time: %d\n", nau8825->sar_compare_time); | |
2293 | dev_dbg(dev, "sar-sampling-time: %d\n", nau8825->sar_sampling_time); | |
2294 | dev_dbg(dev, "short-key-debounce: %d\n", nau8825->key_debounce); | |
2295 | dev_dbg(dev, "jack-insert-debounce: %d\n", | |
2296 | nau8825->jack_insert_debounce); | |
2297 | dev_dbg(dev, "jack-eject-debounce: %d\n", | |
2298 | nau8825->jack_eject_debounce); | |
2299 | } | |
2300 | ||
34ca27f3 AP |
2301 | static int nau8825_read_device_properties(struct device *dev, |
2302 | struct nau8825 *nau8825) { | |
2303 | ||
2304 | nau8825->jkdet_enable = device_property_read_bool(dev, | |
2305 | "nuvoton,jkdet-enable"); | |
2306 | nau8825->jkdet_pull_enable = device_property_read_bool(dev, | |
2307 | "nuvoton,jkdet-pull-enable"); | |
2308 | nau8825->jkdet_pull_up = device_property_read_bool(dev, | |
2309 | "nuvoton,jkdet-pull-up"); | |
2310 | device_property_read_u32(dev, "nuvoton,jkdet-polarity", | |
2311 | &nau8825->jkdet_polarity); | |
2312 | device_property_read_u32(dev, "nuvoton,micbias-voltage", | |
2313 | &nau8825->micbias_voltage); | |
2314 | device_property_read_u32(dev, "nuvoton,vref-impedance", | |
2315 | &nau8825->vref_impedance); | |
2316 | device_property_read_u32(dev, "nuvoton,sar-threshold-num", | |
2317 | &nau8825->sar_threshold_num); | |
2318 | device_property_read_u32_array(dev, "nuvoton,sar-threshold", | |
2319 | nau8825->sar_threshold, nau8825->sar_threshold_num); | |
2320 | device_property_read_u32(dev, "nuvoton,sar-hysteresis", | |
2321 | &nau8825->sar_hysteresis); | |
2322 | device_property_read_u32(dev, "nuvoton,sar-voltage", | |
2323 | &nau8825->sar_voltage); | |
2324 | device_property_read_u32(dev, "nuvoton,sar-compare-time", | |
2325 | &nau8825->sar_compare_time); | |
2326 | device_property_read_u32(dev, "nuvoton,sar-sampling-time", | |
2327 | &nau8825->sar_sampling_time); | |
2328 | device_property_read_u32(dev, "nuvoton,short-key-debounce", | |
2329 | &nau8825->key_debounce); | |
2330 | device_property_read_u32(dev, "nuvoton,jack-insert-debounce", | |
2331 | &nau8825->jack_insert_debounce); | |
2332 | device_property_read_u32(dev, "nuvoton,jack-eject-debounce", | |
2333 | &nau8825->jack_eject_debounce); | |
2334 | ||
2335 | nau8825->mclk = devm_clk_get(dev, "mclk"); | |
2336 | if (PTR_ERR(nau8825->mclk) == -EPROBE_DEFER) { | |
2337 | return -EPROBE_DEFER; | |
2338 | } else if (PTR_ERR(nau8825->mclk) == -ENOENT) { | |
2339 | /* The MCLK is managed externally or not used at all */ | |
2340 | nau8825->mclk = NULL; | |
2341 | dev_info(dev, "No 'mclk' clock found, assume MCLK is managed externally"); | |
2342 | } else if (IS_ERR(nau8825->mclk)) { | |
2343 | return -EINVAL; | |
2344 | } | |
2345 | ||
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | static int nau8825_setup_irq(struct nau8825 *nau8825) | |
2350 | { | |
34ca27f3 AP |
2351 | int ret; |
2352 | ||
34ca27f3 AP |
2353 | ret = devm_request_threaded_irq(nau8825->dev, nau8825->irq, NULL, |
2354 | nau8825_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, | |
2355 | "nau8825", nau8825); | |
2356 | ||
2357 | if (ret) { | |
2358 | dev_err(nau8825->dev, "Cannot request irq %d (%d)\n", | |
2359 | nau8825->irq, ret); | |
2360 | return ret; | |
2361 | } | |
2362 | ||
2363 | return 0; | |
2364 | } | |
2365 | ||
2366 | static int nau8825_i2c_probe(struct i2c_client *i2c, | |
2367 | const struct i2c_device_id *id) | |
2368 | { | |
2369 | struct device *dev = &i2c->dev; | |
2370 | struct nau8825 *nau8825 = dev_get_platdata(&i2c->dev); | |
2371 | int ret, value; | |
2372 | ||
2373 | if (!nau8825) { | |
2374 | nau8825 = devm_kzalloc(dev, sizeof(*nau8825), GFP_KERNEL); | |
2375 | if (!nau8825) | |
2376 | return -ENOMEM; | |
2377 | ret = nau8825_read_device_properties(dev, nau8825); | |
2378 | if (ret) | |
2379 | return ret; | |
2380 | } | |
2381 | ||
2382 | i2c_set_clientdata(i2c, nau8825); | |
2383 | ||
2384 | nau8825->regmap = devm_regmap_init_i2c(i2c, &nau8825_regmap_config); | |
2385 | if (IS_ERR(nau8825->regmap)) | |
2386 | return PTR_ERR(nau8825->regmap); | |
2387 | nau8825->dev = dev; | |
2388 | nau8825->irq = i2c->irq; | |
b50455fa JH |
2389 | /* Initiate parameters, semaphone and work queue which are needed in |
2390 | * cross talk suppression measurment function. | |
2391 | */ | |
2392 | nau8825->xtalk_state = NAU8825_XTALK_DONE; | |
2393 | nau8825->xtalk_protect = false; | |
2394 | sema_init(&nau8825->xtalk_sem, 1); | |
2395 | INIT_WORK(&nau8825->xtalk_work, nau8825_xtalk_work); | |
34ca27f3 | 2396 | |
218d2ce2 BZ |
2397 | nau8825_print_device_properties(nau8825); |
2398 | ||
34ca27f3 AP |
2399 | nau8825_reset_chip(nau8825->regmap); |
2400 | ret = regmap_read(nau8825->regmap, NAU8825_REG_I2C_DEVICE_ID, &value); | |
2401 | if (ret < 0) { | |
2402 | dev_err(dev, "Failed to read device id from the NAU8825: %d\n", | |
2403 | ret); | |
2404 | return ret; | |
2405 | } | |
2406 | if ((value & NAU8825_SOFTWARE_ID_MASK) != | |
2407 | NAU8825_SOFTWARE_ID_NAU8825) { | |
2408 | dev_err(dev, "Not a NAU8825 chip\n"); | |
2409 | return -ENODEV; | |
2410 | } | |
2411 | ||
2412 | nau8825_init_regs(nau8825); | |
2413 | ||
2414 | if (i2c->irq) | |
2415 | nau8825_setup_irq(nau8825); | |
2416 | ||
2417 | return snd_soc_register_codec(&i2c->dev, &nau8825_codec_driver, | |
2418 | &nau8825_dai, 1); | |
2419 | } | |
2420 | ||
2421 | static int nau8825_i2c_remove(struct i2c_client *client) | |
2422 | { | |
2423 | snd_soc_unregister_codec(&client->dev); | |
2424 | return 0; | |
2425 | } | |
2426 | ||
2427 | static const struct i2c_device_id nau8825_i2c_ids[] = { | |
2428 | { "nau8825", 0 }, | |
2429 | { } | |
2430 | }; | |
ffd72505 | 2431 | MODULE_DEVICE_TABLE(i2c, nau8825_i2c_ids); |
34ca27f3 AP |
2432 | |
2433 | #ifdef CONFIG_OF | |
2434 | static const struct of_device_id nau8825_of_ids[] = { | |
2435 | { .compatible = "nuvoton,nau8825", }, | |
2436 | {} | |
2437 | }; | |
2438 | MODULE_DEVICE_TABLE(of, nau8825_of_ids); | |
2439 | #endif | |
2440 | ||
b3681308 FY |
2441 | #ifdef CONFIG_ACPI |
2442 | static const struct acpi_device_id nau8825_acpi_match[] = { | |
2443 | { "10508825", 0 }, | |
2444 | {}, | |
2445 | }; | |
2446 | MODULE_DEVICE_TABLE(acpi, nau8825_acpi_match); | |
2447 | #endif | |
2448 | ||
34ca27f3 AP |
2449 | static struct i2c_driver nau8825_driver = { |
2450 | .driver = { | |
2451 | .name = "nau8825", | |
34ca27f3 | 2452 | .of_match_table = of_match_ptr(nau8825_of_ids), |
b3681308 | 2453 | .acpi_match_table = ACPI_PTR(nau8825_acpi_match), |
34ca27f3 AP |
2454 | }, |
2455 | .probe = nau8825_i2c_probe, | |
2456 | .remove = nau8825_i2c_remove, | |
2457 | .id_table = nau8825_i2c_ids, | |
2458 | }; | |
2459 | module_i2c_driver(nau8825_driver); | |
2460 | ||
2461 | MODULE_DESCRIPTION("ASoC nau8825 driver"); | |
2462 | MODULE_AUTHOR("Anatol Pomozov <anatol@chromium.org>"); | |
2463 | MODULE_LICENSE("GPL"); |