1 // SPDX-License-Identifier: GPL-2.0-only
3 * NAU88L24 ALSA SoC audio driver
5 * Copyright 2016 Nuvoton Technology Corp.
6 * Author: John Hsu <KCHSU0@nuvoton.com>
9 #include <linux/module.h>
10 #include <linux/delay.h>
11 #include <linux/init.h>
12 #include <linux/i2c.h>
13 #include <linux/regmap.h>
14 #include <linux/slab.h>
15 #include <linux/clk.h>
16 #include <linux/acpi.h>
17 #include <linux/math64.h>
18 #include <linux/semaphore.h>
20 #include <sound/initval.h>
21 #include <sound/tlv.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/jack.h>
31 static int nau8824_config_sysclk(struct nau8824 *nau8824,
32 int clk_id, unsigned int freq);
33 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824);
35 /* the ADC threshold of headset */
36 #define DMIC_CLK 3072000
38 /* the ADC threshold of headset */
39 #define HEADSET_SARADC_THD 0x80
41 /* the parameter threshold of FLL */
42 #define NAU_FREF_MAX 13500000
43 #define NAU_FVCO_MAX 100000000
44 #define NAU_FVCO_MIN 90000000
46 /* scaling for mclk from sysclk_src output */
47 static const struct nau8824_fll_attr mclk_src_scaling[] = {
60 /* ratio for input clk freq */
61 static const struct nau8824_fll_attr fll_ratio[] = {
71 static const struct nau8824_fll_attr fll_pre_scalar[] = {
78 /* the maximum frequency of CLK_ADC and CLK_DAC */
79 #define CLK_DA_AD_MAX 6144000
81 /* over sampling rate */
82 static const struct nau8824_osr_attr osr_dac_sel[] = {
83 { 64, 2 }, /* OSR 64, SRC 1/4 */
84 { 256, 0 }, /* OSR 256, SRC 1 */
85 { 128, 1 }, /* OSR 128, SRC 1/2 */
87 { 32, 3 }, /* OSR 32, SRC 1/8 */
90 static const struct nau8824_osr_attr osr_adc_sel[] = {
91 { 32, 3 }, /* OSR 32, SRC 1/8 */
92 { 64, 2 }, /* OSR 64, SRC 1/4 */
93 { 128, 1 }, /* OSR 128, SRC 1/2 */
94 { 256, 0 }, /* OSR 256, SRC 1 */
97 static const struct reg_default nau8824_reg_defaults[] = {
98 { NAU8824_REG_ENA_CTRL, 0x0000 },
99 { NAU8824_REG_CLK_GATING_ENA, 0x0000 },
100 { NAU8824_REG_CLK_DIVIDER, 0x0000 },
101 { NAU8824_REG_FLL1, 0x0000 },
102 { NAU8824_REG_FLL2, 0x3126 },
103 { NAU8824_REG_FLL3, 0x0008 },
104 { NAU8824_REG_FLL4, 0x0010 },
105 { NAU8824_REG_FLL5, 0xC000 },
106 { NAU8824_REG_FLL6, 0x6000 },
107 { NAU8824_REG_FLL_VCO_RSV, 0xF13C },
108 { NAU8824_REG_JACK_DET_CTRL, 0x0000 },
109 { NAU8824_REG_INTERRUPT_SETTING_1, 0x0000 },
110 { NAU8824_REG_IRQ, 0x0000 },
111 { NAU8824_REG_CLEAR_INT_REG, 0x0000 },
112 { NAU8824_REG_INTERRUPT_SETTING, 0x1000 },
113 { NAU8824_REG_SAR_ADC, 0x0015 },
114 { NAU8824_REG_VDET_COEFFICIENT, 0x0110 },
115 { NAU8824_REG_VDET_THRESHOLD_1, 0x0000 },
116 { NAU8824_REG_VDET_THRESHOLD_2, 0x0000 },
117 { NAU8824_REG_VDET_THRESHOLD_3, 0x0000 },
118 { NAU8824_REG_VDET_THRESHOLD_4, 0x0000 },
119 { NAU8824_REG_GPIO_SEL, 0x0000 },
120 { NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 0x000B },
121 { NAU8824_REG_PORT0_I2S_PCM_CTRL_2, 0x0010 },
122 { NAU8824_REG_PORT0_LEFT_TIME_SLOT, 0x0000 },
123 { NAU8824_REG_PORT0_RIGHT_TIME_SLOT, 0x0000 },
124 { NAU8824_REG_TDM_CTRL, 0x0000 },
125 { NAU8824_REG_ADC_HPF_FILTER, 0x0000 },
126 { NAU8824_REG_ADC_FILTER_CTRL, 0x0002 },
127 { NAU8824_REG_DAC_FILTER_CTRL_1, 0x0000 },
128 { NAU8824_REG_DAC_FILTER_CTRL_2, 0x0000 },
129 { NAU8824_REG_NOTCH_FILTER_1, 0x0000 },
130 { NAU8824_REG_NOTCH_FILTER_2, 0x0000 },
131 { NAU8824_REG_EQ1_LOW, 0x112C },
132 { NAU8824_REG_EQ2_EQ3, 0x2C2C },
133 { NAU8824_REG_EQ4_EQ5, 0x2C2C },
134 { NAU8824_REG_ADC_CH0_DGAIN_CTRL, 0x0100 },
135 { NAU8824_REG_ADC_CH1_DGAIN_CTRL, 0x0100 },
136 { NAU8824_REG_ADC_CH2_DGAIN_CTRL, 0x0100 },
137 { NAU8824_REG_ADC_CH3_DGAIN_CTRL, 0x0100 },
138 { NAU8824_REG_DAC_MUTE_CTRL, 0x0000 },
139 { NAU8824_REG_DAC_CH0_DGAIN_CTRL, 0x0100 },
140 { NAU8824_REG_DAC_CH1_DGAIN_CTRL, 0x0100 },
141 { NAU8824_REG_ADC_TO_DAC_ST, 0x0000 },
142 { NAU8824_REG_DRC_KNEE_IP12_ADC_CH01, 0x1486 },
143 { NAU8824_REG_DRC_KNEE_IP34_ADC_CH01, 0x0F12 },
144 { NAU8824_REG_DRC_SLOPE_ADC_CH01, 0x25FF },
145 { NAU8824_REG_DRC_ATKDCY_ADC_CH01, 0x3457 },
146 { NAU8824_REG_DRC_KNEE_IP12_ADC_CH23, 0x1486 },
147 { NAU8824_REG_DRC_KNEE_IP34_ADC_CH23, 0x0F12 },
148 { NAU8824_REG_DRC_SLOPE_ADC_CH23, 0x25FF },
149 { NAU8824_REG_DRC_ATKDCY_ADC_CH23, 0x3457 },
150 { NAU8824_REG_DRC_GAINL_ADC0, 0x0200 },
151 { NAU8824_REG_DRC_GAINL_ADC1, 0x0200 },
152 { NAU8824_REG_DRC_GAINL_ADC2, 0x0200 },
153 { NAU8824_REG_DRC_GAINL_ADC3, 0x0200 },
154 { NAU8824_REG_DRC_KNEE_IP12_DAC, 0x1486 },
155 { NAU8824_REG_DRC_KNEE_IP34_DAC, 0x0F12 },
156 { NAU8824_REG_DRC_SLOPE_DAC, 0x25F9 },
157 { NAU8824_REG_DRC_ATKDCY_DAC, 0x3457 },
158 { NAU8824_REG_DRC_GAIN_DAC_CH0, 0x0200 },
159 { NAU8824_REG_DRC_GAIN_DAC_CH1, 0x0200 },
160 { NAU8824_REG_MODE, 0x0000 },
161 { NAU8824_REG_MODE1, 0x0000 },
162 { NAU8824_REG_MODE2, 0x0000 },
163 { NAU8824_REG_CLASSG, 0x0000 },
164 { NAU8824_REG_OTP_EFUSE, 0x0000 },
165 { NAU8824_REG_OTPDOUT_1, 0x0000 },
166 { NAU8824_REG_OTPDOUT_2, 0x0000 },
167 { NAU8824_REG_MISC_CTRL, 0x0000 },
168 { NAU8824_REG_I2C_TIMEOUT, 0xEFFF },
169 { NAU8824_REG_TEST_MODE, 0x0000 },
170 { NAU8824_REG_I2C_DEVICE_ID, 0x1AF1 },
171 { NAU8824_REG_SAR_ADC_DATA_OUT, 0x00FF },
172 { NAU8824_REG_BIAS_ADJ, 0x0000 },
173 { NAU8824_REG_PGA_GAIN, 0x0000 },
174 { NAU8824_REG_TRIM_SETTINGS, 0x0000 },
175 { NAU8824_REG_ANALOG_CONTROL_1, 0x0000 },
176 { NAU8824_REG_ANALOG_CONTROL_2, 0x0000 },
177 { NAU8824_REG_ENABLE_LO, 0x0000 },
178 { NAU8824_REG_GAIN_LO, 0x0000 },
179 { NAU8824_REG_CLASSD_GAIN_1, 0x0000 },
180 { NAU8824_REG_CLASSD_GAIN_2, 0x0000 },
181 { NAU8824_REG_ANALOG_ADC_1, 0x0011 },
182 { NAU8824_REG_ANALOG_ADC_2, 0x0020 },
183 { NAU8824_REG_RDAC, 0x0008 },
184 { NAU8824_REG_MIC_BIAS, 0x0006 },
185 { NAU8824_REG_HS_VOLUME_CONTROL, 0x0000 },
186 { NAU8824_REG_BOOST, 0x0000 },
187 { NAU8824_REG_FEPGA, 0x0000 },
188 { NAU8824_REG_FEPGA_II, 0x0000 },
189 { NAU8824_REG_FEPGA_SE, 0x0000 },
190 { NAU8824_REG_FEPGA_ATTENUATION, 0x0000 },
191 { NAU8824_REG_ATT_PORT0, 0x0000 },
192 { NAU8824_REG_ATT_PORT1, 0x0000 },
193 { NAU8824_REG_POWER_UP_CONTROL, 0x0000 },
194 { NAU8824_REG_CHARGE_PUMP_CONTROL, 0x0300 },
195 { NAU8824_REG_CHARGE_PUMP_INPUT, 0x0013 },
198 static int nau8824_sema_acquire(struct nau8824 *nau8824, long timeout)
203 ret = down_timeout(&nau8824->jd_sem, timeout);
205 dev_warn(nau8824->dev, "Acquire semaphore timeout\n");
207 ret = down_interruptible(&nau8824->jd_sem);
209 dev_warn(nau8824->dev, "Acquire semaphore fail\n");
215 static inline void nau8824_sema_release(struct nau8824 *nau8824)
217 up(&nau8824->jd_sem);
220 static bool nau8824_readable_reg(struct device *dev, unsigned int reg)
223 case NAU8824_REG_ENA_CTRL ... NAU8824_REG_FLL_VCO_RSV:
224 case NAU8824_REG_JACK_DET_CTRL:
225 case NAU8824_REG_INTERRUPT_SETTING_1:
226 case NAU8824_REG_IRQ:
227 case NAU8824_REG_CLEAR_INT_REG ... NAU8824_REG_VDET_THRESHOLD_4:
228 case NAU8824_REG_GPIO_SEL:
229 case NAU8824_REG_PORT0_I2S_PCM_CTRL_1 ... NAU8824_REG_TDM_CTRL:
230 case NAU8824_REG_ADC_HPF_FILTER ... NAU8824_REG_EQ4_EQ5:
231 case NAU8824_REG_ADC_CH0_DGAIN_CTRL ... NAU8824_REG_ADC_TO_DAC_ST:
232 case NAU8824_REG_DRC_KNEE_IP12_ADC_CH01 ... NAU8824_REG_DRC_GAINL_ADC3:
233 case NAU8824_REG_DRC_KNEE_IP12_DAC ... NAU8824_REG_DRC_GAIN_DAC_CH1:
234 case NAU8824_REG_CLASSG ... NAU8824_REG_OTP_EFUSE:
235 case NAU8824_REG_OTPDOUT_1 ... NAU8824_REG_OTPDOUT_2:
236 case NAU8824_REG_I2C_TIMEOUT:
237 case NAU8824_REG_I2C_DEVICE_ID ... NAU8824_REG_SAR_ADC_DATA_OUT:
238 case NAU8824_REG_BIAS_ADJ ... NAU8824_REG_CLASSD_GAIN_2:
239 case NAU8824_REG_ANALOG_ADC_1 ... NAU8824_REG_ATT_PORT1:
240 case NAU8824_REG_POWER_UP_CONTROL ... NAU8824_REG_CHARGE_PUMP_INPUT:
248 static bool nau8824_writeable_reg(struct device *dev, unsigned int reg)
251 case NAU8824_REG_RESET ... NAU8824_REG_FLL_VCO_RSV:
252 case NAU8824_REG_JACK_DET_CTRL:
253 case NAU8824_REG_INTERRUPT_SETTING_1:
254 case NAU8824_REG_CLEAR_INT_REG ... NAU8824_REG_VDET_THRESHOLD_4:
255 case NAU8824_REG_GPIO_SEL:
256 case NAU8824_REG_PORT0_I2S_PCM_CTRL_1 ... NAU8824_REG_TDM_CTRL:
257 case NAU8824_REG_ADC_HPF_FILTER ... NAU8824_REG_EQ4_EQ5:
258 case NAU8824_REG_ADC_CH0_DGAIN_CTRL ... NAU8824_REG_ADC_TO_DAC_ST:
259 case NAU8824_REG_DRC_KNEE_IP12_ADC_CH01:
260 case NAU8824_REG_DRC_KNEE_IP34_ADC_CH01:
261 case NAU8824_REG_DRC_SLOPE_ADC_CH01:
262 case NAU8824_REG_DRC_ATKDCY_ADC_CH01:
263 case NAU8824_REG_DRC_KNEE_IP12_ADC_CH23:
264 case NAU8824_REG_DRC_KNEE_IP34_ADC_CH23:
265 case NAU8824_REG_DRC_SLOPE_ADC_CH23:
266 case NAU8824_REG_DRC_ATKDCY_ADC_CH23:
267 case NAU8824_REG_DRC_KNEE_IP12_DAC ... NAU8824_REG_DRC_ATKDCY_DAC:
268 case NAU8824_REG_CLASSG ... NAU8824_REG_OTP_EFUSE:
269 case NAU8824_REG_I2C_TIMEOUT:
270 case NAU8824_REG_BIAS_ADJ ... NAU8824_REG_CLASSD_GAIN_2:
271 case NAU8824_REG_ANALOG_ADC_1 ... NAU8824_REG_ATT_PORT1:
272 case NAU8824_REG_POWER_UP_CONTROL ... NAU8824_REG_CHARGE_PUMP_CONTROL:
279 static bool nau8824_volatile_reg(struct device *dev, unsigned int reg)
282 case NAU8824_REG_RESET:
283 case NAU8824_REG_IRQ ... NAU8824_REG_CLEAR_INT_REG:
284 case NAU8824_REG_DRC_GAINL_ADC0 ... NAU8824_REG_DRC_GAINL_ADC3:
285 case NAU8824_REG_DRC_GAIN_DAC_CH0 ... NAU8824_REG_DRC_GAIN_DAC_CH1:
286 case NAU8824_REG_OTPDOUT_1 ... NAU8824_REG_OTPDOUT_2:
287 case NAU8824_REG_I2C_DEVICE_ID ... NAU8824_REG_SAR_ADC_DATA_OUT:
288 case NAU8824_REG_CHARGE_PUMP_INPUT:
295 static const char * const nau8824_companding[] = {
296 "Off", "NC", "u-law", "A-law" };
298 static const struct soc_enum nau8824_companding_adc_enum =
299 SOC_ENUM_SINGLE(NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 12,
300 ARRAY_SIZE(nau8824_companding), nau8824_companding);
302 static const struct soc_enum nau8824_companding_dac_enum =
303 SOC_ENUM_SINGLE(NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 14,
304 ARRAY_SIZE(nau8824_companding), nau8824_companding);
306 static const char * const nau8824_adc_decimation[] = {
307 "32", "64", "128", "256" };
309 static const struct soc_enum nau8824_adc_decimation_enum =
310 SOC_ENUM_SINGLE(NAU8824_REG_ADC_FILTER_CTRL, 0,
311 ARRAY_SIZE(nau8824_adc_decimation), nau8824_adc_decimation);
313 static const char * const nau8824_dac_oversampl[] = {
314 "64", "256", "128", "", "32" };
316 static const struct soc_enum nau8824_dac_oversampl_enum =
317 SOC_ENUM_SINGLE(NAU8824_REG_DAC_FILTER_CTRL_1, 0,
318 ARRAY_SIZE(nau8824_dac_oversampl), nau8824_dac_oversampl);
320 static const char * const nau8824_input_channel[] = {
321 "Input CH0", "Input CH1", "Input CH2", "Input CH3" };
323 static const struct soc_enum nau8824_adc_ch0_enum =
324 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH0_DGAIN_CTRL, 9,
325 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
327 static const struct soc_enum nau8824_adc_ch1_enum =
328 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH1_DGAIN_CTRL, 9,
329 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
331 static const struct soc_enum nau8824_adc_ch2_enum =
332 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH2_DGAIN_CTRL, 9,
333 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
335 static const struct soc_enum nau8824_adc_ch3_enum =
336 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH3_DGAIN_CTRL, 9,
337 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
339 static const char * const nau8824_tdm_slot[] = {
340 "Slot 0", "Slot 1", "Slot 2", "Slot 3" };
342 static const struct soc_enum nau8824_dac_left_sel_enum =
343 SOC_ENUM_SINGLE(NAU8824_REG_TDM_CTRL, 6,
344 ARRAY_SIZE(nau8824_tdm_slot), nau8824_tdm_slot);
346 static const struct soc_enum nau8824_dac_right_sel_enum =
347 SOC_ENUM_SINGLE(NAU8824_REG_TDM_CTRL, 4,
348 ARRAY_SIZE(nau8824_tdm_slot), nau8824_tdm_slot);
350 static const DECLARE_TLV_DB_MINMAX_MUTE(spk_vol_tlv, 0, 2400);
351 static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -3000, 0);
352 static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 200, 0);
353 static const DECLARE_TLV_DB_SCALE(dmic_vol_tlv, -12800, 50, 0);
355 static const struct snd_kcontrol_new nau8824_snd_controls[] = {
356 SOC_ENUM("ADC Companding", nau8824_companding_adc_enum),
357 SOC_ENUM("DAC Companding", nau8824_companding_dac_enum),
359 SOC_ENUM("ADC Decimation Rate", nau8824_adc_decimation_enum),
360 SOC_ENUM("DAC Oversampling Rate", nau8824_dac_oversampl_enum),
362 SOC_SINGLE_TLV("Speaker Right DACR Volume",
363 NAU8824_REG_CLASSD_GAIN_1, 8, 0x1f, 0, spk_vol_tlv),
364 SOC_SINGLE_TLV("Speaker Left DACL Volume",
365 NAU8824_REG_CLASSD_GAIN_2, 0, 0x1f, 0, spk_vol_tlv),
366 SOC_SINGLE_TLV("Speaker Left DACR Volume",
367 NAU8824_REG_CLASSD_GAIN_1, 0, 0x1f, 0, spk_vol_tlv),
368 SOC_SINGLE_TLV("Speaker Right DACL Volume",
369 NAU8824_REG_CLASSD_GAIN_2, 8, 0x1f, 0, spk_vol_tlv),
371 SOC_SINGLE_TLV("Headphone Right DACR Volume",
372 NAU8824_REG_ATT_PORT0, 8, 0x1f, 0, hp_vol_tlv),
373 SOC_SINGLE_TLV("Headphone Left DACL Volume",
374 NAU8824_REG_ATT_PORT0, 0, 0x1f, 0, hp_vol_tlv),
375 SOC_SINGLE_TLV("Headphone Right DACL Volume",
376 NAU8824_REG_ATT_PORT1, 8, 0x1f, 0, hp_vol_tlv),
377 SOC_SINGLE_TLV("Headphone Left DACR Volume",
378 NAU8824_REG_ATT_PORT1, 0, 0x1f, 0, hp_vol_tlv),
380 SOC_SINGLE_TLV("MIC1 Volume", NAU8824_REG_FEPGA_II,
381 NAU8824_FEPGA_GAINL_SFT, 0x12, 0, mic_vol_tlv),
382 SOC_SINGLE_TLV("MIC2 Volume", NAU8824_REG_FEPGA_II,
383 NAU8824_FEPGA_GAINR_SFT, 0x12, 0, mic_vol_tlv),
385 SOC_SINGLE_TLV("DMIC1 Volume", NAU8824_REG_ADC_CH0_DGAIN_CTRL,
386 0, 0x164, 0, dmic_vol_tlv),
387 SOC_SINGLE_TLV("DMIC2 Volume", NAU8824_REG_ADC_CH1_DGAIN_CTRL,
388 0, 0x164, 0, dmic_vol_tlv),
389 SOC_SINGLE_TLV("DMIC3 Volume", NAU8824_REG_ADC_CH2_DGAIN_CTRL,
390 0, 0x164, 0, dmic_vol_tlv),
391 SOC_SINGLE_TLV("DMIC4 Volume", NAU8824_REG_ADC_CH3_DGAIN_CTRL,
392 0, 0x164, 0, dmic_vol_tlv),
394 SOC_ENUM("ADC CH0 Select", nau8824_adc_ch0_enum),
395 SOC_ENUM("ADC CH1 Select", nau8824_adc_ch1_enum),
396 SOC_ENUM("ADC CH2 Select", nau8824_adc_ch2_enum),
397 SOC_ENUM("ADC CH3 Select", nau8824_adc_ch3_enum),
399 SOC_SINGLE("ADC CH0 TX Switch", NAU8824_REG_TDM_CTRL, 0, 1, 0),
400 SOC_SINGLE("ADC CH1 TX Switch", NAU8824_REG_TDM_CTRL, 1, 1, 0),
401 SOC_SINGLE("ADC CH2 TX Switch", NAU8824_REG_TDM_CTRL, 2, 1, 0),
402 SOC_SINGLE("ADC CH3 TX Switch", NAU8824_REG_TDM_CTRL, 3, 1, 0),
404 SOC_ENUM("DACL Channel Source", nau8824_dac_left_sel_enum),
405 SOC_ENUM("DACR Channel Source", nau8824_dac_right_sel_enum),
407 SOC_SINGLE("DACL LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 0, 1, 0),
408 SOC_SINGLE("DACR LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 1, 1, 0),
410 SOC_SINGLE("THD for key media",
411 NAU8824_REG_VDET_THRESHOLD_1, 8, 0xff, 0),
412 SOC_SINGLE("THD for key voice command",
413 NAU8824_REG_VDET_THRESHOLD_1, 0, 0xff, 0),
414 SOC_SINGLE("THD for key volume up",
415 NAU8824_REG_VDET_THRESHOLD_2, 8, 0xff, 0),
416 SOC_SINGLE("THD for key volume down",
417 NAU8824_REG_VDET_THRESHOLD_2, 0, 0xff, 0),
420 static int nau8824_output_dac_event(struct snd_soc_dapm_widget *w,
421 struct snd_kcontrol *kcontrol, int event)
423 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
424 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
427 case SND_SOC_DAPM_PRE_PMU:
428 /* Disables the TESTDAC to let DAC signal pass through. */
429 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,
430 NAU8824_TEST_DAC_EN, 0);
432 case SND_SOC_DAPM_POST_PMD:
433 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,
434 NAU8824_TEST_DAC_EN, NAU8824_TEST_DAC_EN);
443 static int nau8824_spk_event(struct snd_soc_dapm_widget *w,
444 struct snd_kcontrol *kcontrol, int event)
446 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
447 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
450 case SND_SOC_DAPM_PRE_PMU:
451 regmap_update_bits(nau8824->regmap,
452 NAU8824_REG_ANALOG_CONTROL_2,
453 NAU8824_CLASSD_CLAMP_DIS, NAU8824_CLASSD_CLAMP_DIS);
455 case SND_SOC_DAPM_POST_PMD:
456 regmap_update_bits(nau8824->regmap,
457 NAU8824_REG_ANALOG_CONTROL_2,
458 NAU8824_CLASSD_CLAMP_DIS, 0);
467 static int nau8824_pump_event(struct snd_soc_dapm_widget *w,
468 struct snd_kcontrol *kcontrol, int event)
470 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
471 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
474 case SND_SOC_DAPM_POST_PMU:
475 /* Prevent startup click by letting charge pump to ramp up */
477 regmap_update_bits(nau8824->regmap,
478 NAU8824_REG_CHARGE_PUMP_CONTROL,
479 NAU8824_JAMNODCLOW, NAU8824_JAMNODCLOW);
481 case SND_SOC_DAPM_PRE_PMD:
482 regmap_update_bits(nau8824->regmap,
483 NAU8824_REG_CHARGE_PUMP_CONTROL,
484 NAU8824_JAMNODCLOW, 0);
493 static int system_clock_control(struct snd_soc_dapm_widget *w,
494 struct snd_kcontrol *k, int event)
496 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
497 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
498 struct regmap *regmap = nau8824->regmap;
502 if (SND_SOC_DAPM_EVENT_OFF(event)) {
503 dev_dbg(nau8824->dev, "system clock control : POWER OFF\n");
504 /* Set clock source to disable or internal clock before the
505 * playback or capture end. Codec needs clock for Jack
506 * detection and button press if jack inserted; otherwise,
507 * the clock should be closed.
509 if (nau8824_is_jack_inserted(nau8824)) {
510 nau8824_config_sysclk(nau8824,
511 NAU8824_CLK_INTERNAL, 0);
513 nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);
516 dev_dbg(nau8824->dev, "system clock control : POWER ON\n");
517 /* Check the clock source setting is proper or not
518 * no matter the source is from FLL or MCLK.
520 regmap_read(regmap, NAU8824_REG_FLL1, &value);
521 clk_fll = value & NAU8824_FLL_RATIO_MASK;
522 /* It's error to use internal clock when playback */
523 regmap_read(regmap, NAU8824_REG_FLL6, &value);
524 error = value & NAU8824_DCO_EN;
526 /* Check error depending on source is FLL or MCLK. */
527 regmap_read(regmap, NAU8824_REG_CLK_DIVIDER, &value);
529 error = !(value & NAU8824_CLK_SRC_VCO);
531 error = value & NAU8824_CLK_SRC_VCO;
533 /* Recover the clock source setting if error. */
536 regmap_update_bits(regmap,
537 NAU8824_REG_FLL6, NAU8824_DCO_EN, 0);
538 regmap_update_bits(regmap,
539 NAU8824_REG_CLK_DIVIDER,
540 NAU8824_CLK_SRC_MASK,
541 NAU8824_CLK_SRC_VCO);
543 nau8824_config_sysclk(nau8824,
544 NAU8824_CLK_MCLK, 0);
552 static int dmic_clock_control(struct snd_soc_dapm_widget *w,
553 struct snd_kcontrol *k, int event)
555 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
556 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
559 /* The DMIC clock is gotten from system clock (256fs) divided by
560 * DMIC_SRC (1, 2, 4, 8, 16, 32). The clock has to be equal or
561 * less than 3.072 MHz.
563 for (src = 0; src < 5; src++) {
564 if ((0x1 << (8 - src)) * nau8824->fs <= DMIC_CLK)
567 dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, nau8824->fs * 256);
568 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
569 NAU8824_CLK_DMIC_SRC_MASK, (src << NAU8824_CLK_DMIC_SRC_SFT));
574 static const struct snd_kcontrol_new nau8824_adc_ch0_dmic =
575 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
576 NAU8824_ADC_CH0_DMIC_SFT, 1, 0);
578 static const struct snd_kcontrol_new nau8824_adc_ch1_dmic =
579 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
580 NAU8824_ADC_CH1_DMIC_SFT, 1, 0);
582 static const struct snd_kcontrol_new nau8824_adc_ch2_dmic =
583 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
584 NAU8824_ADC_CH2_DMIC_SFT, 1, 0);
586 static const struct snd_kcontrol_new nau8824_adc_ch3_dmic =
587 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
588 NAU8824_ADC_CH3_DMIC_SFT, 1, 0);
590 static const struct snd_kcontrol_new nau8824_adc_left_mixer[] = {
591 SOC_DAPM_SINGLE("MIC Switch", NAU8824_REG_FEPGA,
592 NAU8824_FEPGA_MODEL_MIC1_SFT, 1, 0),
593 SOC_DAPM_SINGLE("HSMIC Switch", NAU8824_REG_FEPGA,
594 NAU8824_FEPGA_MODEL_HSMIC_SFT, 1, 0),
597 static const struct snd_kcontrol_new nau8824_adc_right_mixer[] = {
598 SOC_DAPM_SINGLE("MIC Switch", NAU8824_REG_FEPGA,
599 NAU8824_FEPGA_MODER_MIC2_SFT, 1, 0),
600 SOC_DAPM_SINGLE("HSMIC Switch", NAU8824_REG_FEPGA,
601 NAU8824_FEPGA_MODER_HSMIC_SFT, 1, 0),
604 static const struct snd_kcontrol_new nau8824_hp_left_mixer[] = {
605 SOC_DAPM_SINGLE("DAC Right Switch", NAU8824_REG_ENABLE_LO,
606 NAU8824_DACR_HPL_EN_SFT, 1, 0),
607 SOC_DAPM_SINGLE("DAC Left Switch", NAU8824_REG_ENABLE_LO,
608 NAU8824_DACL_HPL_EN_SFT, 1, 0),
611 static const struct snd_kcontrol_new nau8824_hp_right_mixer[] = {
612 SOC_DAPM_SINGLE("DAC Left Switch", NAU8824_REG_ENABLE_LO,
613 NAU8824_DACL_HPR_EN_SFT, 1, 0),
614 SOC_DAPM_SINGLE("DAC Right Switch", NAU8824_REG_ENABLE_LO,
615 NAU8824_DACR_HPR_EN_SFT, 1, 0),
618 static const char * const nau8824_dac_src[] = { "DACL", "DACR" };
620 static SOC_ENUM_SINGLE_DECL(
621 nau8824_dacl_enum, NAU8824_REG_DAC_CH0_DGAIN_CTRL,
622 NAU8824_DAC_CH0_SEL_SFT, nau8824_dac_src);
624 static SOC_ENUM_SINGLE_DECL(
625 nau8824_dacr_enum, NAU8824_REG_DAC_CH1_DGAIN_CTRL,
626 NAU8824_DAC_CH1_SEL_SFT, nau8824_dac_src);
628 static const struct snd_kcontrol_new nau8824_dacl_mux =
629 SOC_DAPM_ENUM("DACL Source", nau8824_dacl_enum);
631 static const struct snd_kcontrol_new nau8824_dacr_mux =
632 SOC_DAPM_ENUM("DACR Source", nau8824_dacr_enum);
635 static const struct snd_soc_dapm_widget nau8824_dapm_widgets[] = {
636 SND_SOC_DAPM_SUPPLY("System Clock", SND_SOC_NOPM, 0, 0,
637 system_clock_control, SND_SOC_DAPM_POST_PMD |
638 SND_SOC_DAPM_POST_PMU),
640 SND_SOC_DAPM_INPUT("HSMIC1"),
641 SND_SOC_DAPM_INPUT("HSMIC2"),
642 SND_SOC_DAPM_INPUT("MIC1"),
643 SND_SOC_DAPM_INPUT("MIC2"),
644 SND_SOC_DAPM_INPUT("DMIC1"),
645 SND_SOC_DAPM_INPUT("DMIC2"),
646 SND_SOC_DAPM_INPUT("DMIC3"),
647 SND_SOC_DAPM_INPUT("DMIC4"),
649 SND_SOC_DAPM_SUPPLY("SAR", NAU8824_REG_SAR_ADC,
650 NAU8824_SAR_ADC_EN_SFT, 0, NULL, 0),
651 SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8824_REG_MIC_BIAS,
652 NAU8824_MICBIAS_POWERUP_SFT, 0, NULL, 0),
653 SND_SOC_DAPM_SUPPLY("DMIC12 Power", NAU8824_REG_BIAS_ADJ,
654 NAU8824_DMIC1_EN_SFT, 0, NULL, 0),
655 SND_SOC_DAPM_SUPPLY("DMIC34 Power", NAU8824_REG_BIAS_ADJ,
656 NAU8824_DMIC2_EN_SFT, 0, NULL, 0),
657 SND_SOC_DAPM_SUPPLY("DMIC Clock", SND_SOC_NOPM, 0, 0,
658 dmic_clock_control, SND_SOC_DAPM_POST_PMU),
660 SND_SOC_DAPM_SWITCH("DMIC1 Enable", SND_SOC_NOPM,
661 0, 0, &nau8824_adc_ch0_dmic),
662 SND_SOC_DAPM_SWITCH("DMIC2 Enable", SND_SOC_NOPM,
663 0, 0, &nau8824_adc_ch1_dmic),
664 SND_SOC_DAPM_SWITCH("DMIC3 Enable", SND_SOC_NOPM,
665 0, 0, &nau8824_adc_ch2_dmic),
666 SND_SOC_DAPM_SWITCH("DMIC4 Enable", SND_SOC_NOPM,
667 0, 0, &nau8824_adc_ch3_dmic),
669 SND_SOC_DAPM_MIXER("Left ADC", NAU8824_REG_POWER_UP_CONTROL,
670 12, 0, nau8824_adc_left_mixer,
671 ARRAY_SIZE(nau8824_adc_left_mixer)),
672 SND_SOC_DAPM_MIXER("Right ADC", NAU8824_REG_POWER_UP_CONTROL,
673 13, 0, nau8824_adc_right_mixer,
674 ARRAY_SIZE(nau8824_adc_right_mixer)),
676 SND_SOC_DAPM_ADC("ADCL", NULL, NAU8824_REG_ANALOG_ADC_2,
677 NAU8824_ADCL_EN_SFT, 0),
678 SND_SOC_DAPM_ADC("ADCR", NULL, NAU8824_REG_ANALOG_ADC_2,
679 NAU8824_ADCR_EN_SFT, 0),
681 SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, SND_SOC_NOPM, 0, 0),
682 SND_SOC_DAPM_AIF_IN("AIFRX", "Playback", 0, SND_SOC_NOPM, 0, 0),
684 SND_SOC_DAPM_DAC("DACL", NULL, NAU8824_REG_RDAC,
685 NAU8824_DACL_EN_SFT, 0),
686 SND_SOC_DAPM_SUPPLY("DACL Clock", NAU8824_REG_RDAC,
687 NAU8824_DACL_CLK_SFT, 0, NULL, 0),
688 SND_SOC_DAPM_DAC("DACR", NULL, NAU8824_REG_RDAC,
689 NAU8824_DACR_EN_SFT, 0),
690 SND_SOC_DAPM_SUPPLY("DACR Clock", NAU8824_REG_RDAC,
691 NAU8824_DACR_CLK_SFT, 0, NULL, 0),
693 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &nau8824_dacl_mux),
694 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &nau8824_dacr_mux),
696 SND_SOC_DAPM_PGA_S("Output DACL", 0, NAU8824_REG_CHARGE_PUMP_CONTROL,
697 8, 1, nau8824_output_dac_event,
698 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
699 SND_SOC_DAPM_PGA_S("Output DACR", 0, NAU8824_REG_CHARGE_PUMP_CONTROL,
700 9, 1, nau8824_output_dac_event,
701 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
703 SND_SOC_DAPM_PGA_S("ClassD", 0, NAU8824_REG_CLASSD_GAIN_1,
704 NAU8824_CLASSD_EN_SFT, 0, nau8824_spk_event,
705 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
707 SND_SOC_DAPM_MIXER("Left Headphone", NAU8824_REG_CLASSG,
708 NAU8824_CLASSG_LDAC_EN_SFT, 0, nau8824_hp_left_mixer,
709 ARRAY_SIZE(nau8824_hp_left_mixer)),
710 SND_SOC_DAPM_MIXER("Right Headphone", NAU8824_REG_CLASSG,
711 NAU8824_CLASSG_RDAC_EN_SFT, 0, nau8824_hp_right_mixer,
712 ARRAY_SIZE(nau8824_hp_right_mixer)),
713 SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8824_REG_CHARGE_PUMP_CONTROL,
714 NAU8824_CHARGE_PUMP_EN_SFT, 0, nau8824_pump_event,
715 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
716 SND_SOC_DAPM_PGA("Output Driver L",
717 NAU8824_REG_POWER_UP_CONTROL, 3, 0, NULL, 0),
718 SND_SOC_DAPM_PGA("Output Driver R",
719 NAU8824_REG_POWER_UP_CONTROL, 2, 0, NULL, 0),
720 SND_SOC_DAPM_PGA("Main Driver L",
721 NAU8824_REG_POWER_UP_CONTROL, 1, 0, NULL, 0),
722 SND_SOC_DAPM_PGA("Main Driver R",
723 NAU8824_REG_POWER_UP_CONTROL, 0, 0, NULL, 0),
724 SND_SOC_DAPM_PGA("HP Boost Driver", NAU8824_REG_BOOST,
725 NAU8824_HP_BOOST_DIS_SFT, 1, NULL, 0),
726 SND_SOC_DAPM_PGA("Class G", NAU8824_REG_CLASSG,
727 NAU8824_CLASSG_EN_SFT, 0, NULL, 0),
729 SND_SOC_DAPM_OUTPUT("SPKOUTL"),
730 SND_SOC_DAPM_OUTPUT("SPKOUTR"),
731 SND_SOC_DAPM_OUTPUT("HPOL"),
732 SND_SOC_DAPM_OUTPUT("HPOR"),
735 static const struct snd_soc_dapm_route nau8824_dapm_routes[] = {
736 {"DMIC1 Enable", "Switch", "DMIC1"},
737 {"DMIC2 Enable", "Switch", "DMIC2"},
738 {"DMIC3 Enable", "Switch", "DMIC3"},
739 {"DMIC4 Enable", "Switch", "DMIC4"},
741 {"DMIC1", NULL, "DMIC12 Power"},
742 {"DMIC2", NULL, "DMIC12 Power"},
743 {"DMIC3", NULL, "DMIC34 Power"},
744 {"DMIC4", NULL, "DMIC34 Power"},
745 {"DMIC12 Power", NULL, "DMIC Clock"},
746 {"DMIC34 Power", NULL, "DMIC Clock"},
748 {"Left ADC", "MIC Switch", "MIC1"},
749 {"Left ADC", "HSMIC Switch", "HSMIC1"},
750 {"Right ADC", "MIC Switch", "MIC2"},
751 {"Right ADC", "HSMIC Switch", "HSMIC2"},
753 {"ADCL", NULL, "Left ADC"},
754 {"ADCR", NULL, "Right ADC"},
756 {"AIFTX", NULL, "MICBIAS"},
757 {"AIFTX", NULL, "ADCL"},
758 {"AIFTX", NULL, "ADCR"},
759 {"AIFTX", NULL, "DMIC1 Enable"},
760 {"AIFTX", NULL, "DMIC2 Enable"},
761 {"AIFTX", NULL, "DMIC3 Enable"},
762 {"AIFTX", NULL, "DMIC4 Enable"},
764 {"AIFTX", NULL, "System Clock"},
765 {"AIFRX", NULL, "System Clock"},
767 {"DACL", NULL, "AIFRX"},
768 {"DACL", NULL, "DACL Clock"},
769 {"DACR", NULL, "AIFRX"},
770 {"DACR", NULL, "DACR Clock"},
772 {"DACL Mux", "DACL", "DACL"},
773 {"DACL Mux", "DACR", "DACR"},
774 {"DACR Mux", "DACL", "DACL"},
775 {"DACR Mux", "DACR", "DACR"},
777 {"Output DACL", NULL, "DACL Mux"},
778 {"Output DACR", NULL, "DACR Mux"},
780 {"ClassD", NULL, "Output DACL"},
781 {"ClassD", NULL, "Output DACR"},
783 {"Left Headphone", "DAC Left Switch", "Output DACL"},
784 {"Left Headphone", "DAC Right Switch", "Output DACR"},
785 {"Right Headphone", "DAC Left Switch", "Output DACL"},
786 {"Right Headphone", "DAC Right Switch", "Output DACR"},
788 {"Charge Pump", NULL, "Left Headphone"},
789 {"Charge Pump", NULL, "Right Headphone"},
790 {"Output Driver L", NULL, "Charge Pump"},
791 {"Output Driver R", NULL, "Charge Pump"},
792 {"Main Driver L", NULL, "Output Driver L"},
793 {"Main Driver R", NULL, "Output Driver R"},
794 {"Class G", NULL, "Main Driver L"},
795 {"Class G", NULL, "Main Driver R"},
796 {"HP Boost Driver", NULL, "Class G"},
798 {"SPKOUTL", NULL, "ClassD"},
799 {"SPKOUTR", NULL, "ClassD"},
800 {"HPOL", NULL, "HP Boost Driver"},
801 {"HPOR", NULL, "HP Boost Driver"},
804 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824)
806 struct snd_soc_jack *jack = nau8824->jack;
809 if (nau8824->irq && jack)
810 insert = jack->status & SND_JACK_HEADPHONE;
815 static void nau8824_int_status_clear_all(struct regmap *regmap)
817 int active_irq, clear_irq, i;
819 /* Reset the intrruption status from rightmost bit if the corres-
820 * ponding irq event occurs.
822 regmap_read(regmap, NAU8824_REG_IRQ, &active_irq);
823 for (i = 0; i < NAU8824_REG_DATA_LEN; i++) {
824 clear_irq = (0x1 << i);
825 if (active_irq & clear_irq)
827 NAU8824_REG_CLEAR_INT_REG, clear_irq);
831 static void nau8824_eject_jack(struct nau8824 *nau8824)
833 struct snd_soc_dapm_context *dapm = nau8824->dapm;
834 struct regmap *regmap = nau8824->regmap;
836 /* Clear all interruption status */
837 nau8824_int_status_clear_all(regmap);
839 snd_soc_dapm_disable_pin(dapm, "SAR");
840 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
841 snd_soc_dapm_sync(dapm);
843 /* Enable the insertion interruption, disable the ejection
844 * interruption, and then bypass de-bounce circuit.
846 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING,
847 NAU8824_IRQ_KEY_RELEASE_DIS | NAU8824_IRQ_KEY_SHORT_PRESS_DIS |
848 NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_INSERT_DIS,
849 NAU8824_IRQ_KEY_RELEASE_DIS | NAU8824_IRQ_KEY_SHORT_PRESS_DIS |
850 NAU8824_IRQ_EJECT_DIS);
851 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING_1,
852 NAU8824_IRQ_INSERT_EN | NAU8824_IRQ_EJECT_EN,
853 NAU8824_IRQ_INSERT_EN);
854 regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL,
855 NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE);
857 /* Close clock for jack type detection at manual mode */
858 if (dapm->bias_level < SND_SOC_BIAS_PREPARE)
859 nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);
862 static void nau8824_jdet_work(struct work_struct *work)
864 struct nau8824 *nau8824 = container_of(
865 work, struct nau8824, jdet_work);
866 struct snd_soc_dapm_context *dapm = nau8824->dapm;
867 struct regmap *regmap = nau8824->regmap;
868 int adc_value, event = 0, event_mask = 0;
870 snd_soc_dapm_enable_pin(dapm, "MICBIAS");
871 snd_soc_dapm_enable_pin(dapm, "SAR");
872 snd_soc_dapm_sync(dapm);
876 regmap_read(regmap, NAU8824_REG_SAR_ADC_DATA_OUT, &adc_value);
877 adc_value = adc_value & NAU8824_SAR_ADC_DATA_MASK;
878 dev_dbg(nau8824->dev, "SAR ADC data 0x%02x\n", adc_value);
879 if (adc_value < HEADSET_SARADC_THD) {
880 event |= SND_JACK_HEADPHONE;
882 snd_soc_dapm_disable_pin(dapm, "SAR");
883 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
884 snd_soc_dapm_sync(dapm);
886 event |= SND_JACK_HEADSET;
888 event_mask |= SND_JACK_HEADSET;
889 snd_soc_jack_report(nau8824->jack, event, event_mask);
891 /* Enable short key press and release interruption. */
892 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING,
893 NAU8824_IRQ_KEY_RELEASE_DIS |
894 NAU8824_IRQ_KEY_SHORT_PRESS_DIS, 0);
896 nau8824_sema_release(nau8824);
899 static void nau8824_setup_auto_irq(struct nau8824 *nau8824)
901 struct regmap *regmap = nau8824->regmap;
903 /* Enable jack ejection interruption. */
904 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING_1,
905 NAU8824_IRQ_INSERT_EN | NAU8824_IRQ_EJECT_EN,
906 NAU8824_IRQ_EJECT_EN);
907 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING,
908 NAU8824_IRQ_EJECT_DIS, 0);
909 /* Enable internal VCO needed for interruptions */
910 if (nau8824->dapm->bias_level < SND_SOC_BIAS_PREPARE)
911 nau8824_config_sysclk(nau8824, NAU8824_CLK_INTERNAL, 0);
912 regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL,
913 NAU8824_JD_SLEEP_MODE, 0);
916 static int nau8824_button_decode(int value)
920 /* The chip supports up to 8 buttons, but ALSA defines
924 buttons |= SND_JACK_BTN_0;
926 buttons |= SND_JACK_BTN_1;
928 buttons |= SND_JACK_BTN_2;
930 buttons |= SND_JACK_BTN_3;
932 buttons |= SND_JACK_BTN_4;
934 buttons |= SND_JACK_BTN_5;
939 #define NAU8824_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \
940 SND_JACK_BTN_2 | SND_JACK_BTN_3)
942 static irqreturn_t nau8824_interrupt(int irq, void *data)
944 struct nau8824 *nau8824 = (struct nau8824 *)data;
945 struct regmap *regmap = nau8824->regmap;
946 int active_irq, clear_irq = 0, event = 0, event_mask = 0;
948 if (regmap_read(regmap, NAU8824_REG_IRQ, &active_irq)) {
949 dev_err(nau8824->dev, "failed to read irq status\n");
952 dev_dbg(nau8824->dev, "IRQ %x\n", active_irq);
954 if (active_irq & NAU8824_JACK_EJECTION_DETECTED) {
955 nau8824_eject_jack(nau8824);
956 event_mask |= SND_JACK_HEADSET;
957 clear_irq = NAU8824_JACK_EJECTION_DETECTED;
958 /* release semaphore held after resume,
959 * and cancel jack detection
961 nau8824_sema_release(nau8824);
962 cancel_work_sync(&nau8824->jdet_work);
963 } else if (active_irq & NAU8824_KEY_SHORT_PRESS_IRQ) {
964 int key_status, button_pressed;
966 regmap_read(regmap, NAU8824_REG_CLEAR_INT_REG,
969 /* lower 8 bits of the register are for pressed keys */
970 button_pressed = nau8824_button_decode(key_status);
972 event |= button_pressed;
973 dev_dbg(nau8824->dev, "button %x pressed\n", event);
974 event_mask |= NAU8824_BUTTONS;
975 clear_irq = NAU8824_KEY_SHORT_PRESS_IRQ;
976 } else if (active_irq & NAU8824_KEY_RELEASE_IRQ) {
977 event_mask = NAU8824_BUTTONS;
978 clear_irq = NAU8824_KEY_RELEASE_IRQ;
979 } else if (active_irq & NAU8824_JACK_INSERTION_DETECTED) {
980 /* Turn off insertion interruption at manual mode */
981 regmap_update_bits(regmap,
982 NAU8824_REG_INTERRUPT_SETTING,
983 NAU8824_IRQ_INSERT_DIS,
984 NAU8824_IRQ_INSERT_DIS);
985 regmap_update_bits(regmap,
986 NAU8824_REG_INTERRUPT_SETTING_1,
987 NAU8824_IRQ_INSERT_EN, 0);
988 /* detect microphone and jack type */
989 cancel_work_sync(&nau8824->jdet_work);
990 schedule_work(&nau8824->jdet_work);
992 /* Enable interruption for jack type detection at audo
993 * mode which can detect microphone and jack type.
995 nau8824_setup_auto_irq(nau8824);
999 clear_irq = active_irq;
1000 /* clears the rightmost interruption */
1001 regmap_write(regmap, NAU8824_REG_CLEAR_INT_REG, clear_irq);
1004 snd_soc_jack_report(nau8824->jack, event, event_mask);
1009 static int nau8824_clock_check(struct nau8824 *nau8824,
1010 int stream, int rate, int osr)
1014 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1015 if (osr >= ARRAY_SIZE(osr_dac_sel))
1017 osrate = osr_dac_sel[osr].osr;
1019 if (osr >= ARRAY_SIZE(osr_adc_sel))
1021 osrate = osr_adc_sel[osr].osr;
1024 if (!osrate || rate * osr > CLK_DA_AD_MAX) {
1025 dev_err(nau8824->dev, "exceed the maximum frequency of CLK_ADC or CLK_DAC\n");
1032 static int nau8824_hw_params(struct snd_pcm_substream *substream,
1033 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
1035 struct snd_soc_component *component = dai->component;
1036 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1037 unsigned int val_len = 0, osr, ctrl_val, bclk_fs, bclk_div;
1039 nau8824_sema_acquire(nau8824, HZ);
1041 /* CLK_DAC or CLK_ADC = OSR * FS
1042 * DAC or ADC clock frequency is defined as Over Sampling Rate (OSR)
1043 * multiplied by the audio sample rate (Fs). Note that the OSR and Fs
1044 * values must be selected such that the maximum frequency is less
1047 nau8824->fs = params_rate(params);
1048 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1049 regmap_read(nau8824->regmap,
1050 NAU8824_REG_DAC_FILTER_CTRL_1, &osr);
1051 osr &= NAU8824_DAC_OVERSAMPLE_MASK;
1052 if (nau8824_clock_check(nau8824, substream->stream,
1055 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
1056 NAU8824_CLK_DAC_SRC_MASK,
1057 osr_dac_sel[osr].clk_src << NAU8824_CLK_DAC_SRC_SFT);
1059 regmap_read(nau8824->regmap,
1060 NAU8824_REG_ADC_FILTER_CTRL, &osr);
1061 osr &= NAU8824_ADC_SYNC_DOWN_MASK;
1062 if (nau8824_clock_check(nau8824, substream->stream,
1065 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
1066 NAU8824_CLK_ADC_SRC_MASK,
1067 osr_adc_sel[osr].clk_src << NAU8824_CLK_ADC_SRC_SFT);
1070 /* make BCLK and LRC divde configuration if the codec as master. */
1071 regmap_read(nau8824->regmap,
1072 NAU8824_REG_PORT0_I2S_PCM_CTRL_2, &ctrl_val);
1073 if (ctrl_val & NAU8824_I2S_MS_MASTER) {
1074 /* get the bclk and fs ratio */
1075 bclk_fs = snd_soc_params_to_bclk(params) / nau8824->fs;
1078 else if (bclk_fs <= 64)
1080 else if (bclk_fs <= 128)
1082 else if (bclk_fs <= 256)
1086 regmap_update_bits(nau8824->regmap,
1087 NAU8824_REG_PORT0_I2S_PCM_CTRL_2,
1088 NAU8824_I2S_LRC_DIV_MASK | NAU8824_I2S_BLK_DIV_MASK,
1089 (bclk_div << NAU8824_I2S_LRC_DIV_SFT) | bclk_div);
1092 switch (params_width(params)) {
1094 val_len |= NAU8824_I2S_DL_16;
1097 val_len |= NAU8824_I2S_DL_20;
1100 val_len |= NAU8824_I2S_DL_24;
1103 val_len |= NAU8824_I2S_DL_32;
1109 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,
1110 NAU8824_I2S_DL_MASK, val_len);
1112 nau8824_sema_release(nau8824);
1117 static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1119 struct snd_soc_component *component = dai->component;
1120 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1121 unsigned int ctrl1_val = 0, ctrl2_val = 0;
1123 nau8824_sema_acquire(nau8824, HZ);
1125 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1126 case SND_SOC_DAIFMT_CBM_CFM:
1127 ctrl2_val |= NAU8824_I2S_MS_MASTER;
1129 case SND_SOC_DAIFMT_CBS_CFS:
1135 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1136 case SND_SOC_DAIFMT_NB_NF:
1138 case SND_SOC_DAIFMT_IB_NF:
1139 ctrl1_val |= NAU8824_I2S_BP_INV;
1145 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1146 case SND_SOC_DAIFMT_I2S:
1147 ctrl1_val |= NAU8824_I2S_DF_I2S;
1149 case SND_SOC_DAIFMT_LEFT_J:
1150 ctrl1_val |= NAU8824_I2S_DF_LEFT;
1152 case SND_SOC_DAIFMT_RIGHT_J:
1153 ctrl1_val |= NAU8824_I2S_DF_RIGTH;
1155 case SND_SOC_DAIFMT_DSP_A:
1156 ctrl1_val |= NAU8824_I2S_DF_PCM_AB;
1158 case SND_SOC_DAIFMT_DSP_B:
1159 ctrl1_val |= NAU8824_I2S_DF_PCM_AB;
1160 ctrl1_val |= NAU8824_I2S_PCMB_EN;
1166 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,
1167 NAU8824_I2S_DF_MASK | NAU8824_I2S_BP_MASK |
1168 NAU8824_I2S_PCMB_EN, ctrl1_val);
1169 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2,
1170 NAU8824_I2S_MS_MASK, ctrl2_val);
1172 nau8824_sema_release(nau8824);
1178 * nau8824_set_tdm_slot - configure DAI TDM.
1180 * @tx_mask: Bitmask representing active TX slots. Ex.
1181 * 0xf for normal 4 channel TDM.
1182 * 0xf0 for shifted 4 channel TDM
1183 * @rx_mask: Bitmask [0:1] representing active DACR RX slots.
1184 * Bitmask [2:3] representing active DACL RX slots.
1185 * 00=CH0,01=CH1,10=CH2,11=CH3. Ex.
1186 * 0xf for DACL/R selecting TDM CH3.
1187 * 0xf0 for DACL/R selecting shifted TDM CH3.
1188 * @slots: Number of slots in use.
1189 * @slot_width: Width in bits for each slot.
1191 * Configures a DAI for TDM operation. Only support 4 slots TDM.
1193 static int nau8824_set_tdm_slot(struct snd_soc_dai *dai,
1194 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
1196 struct snd_soc_component *component = dai->component;
1197 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1198 unsigned int tslot_l = 0, ctrl_val = 0;
1200 if (slots > 4 || ((tx_mask & 0xf0) && (tx_mask & 0xf)) ||
1201 ((rx_mask & 0xf0) && (rx_mask & 0xf)) ||
1202 ((rx_mask & 0xf0) && (tx_mask & 0xf)) ||
1203 ((rx_mask & 0xf) && (tx_mask & 0xf0)))
1206 ctrl_val |= (NAU8824_TDM_MODE | NAU8824_TDM_OFFSET_EN);
1207 if (tx_mask & 0xf0) {
1208 tslot_l = 4 * slot_width;
1209 ctrl_val |= (tx_mask >> 4);
1211 ctrl_val |= tx_mask;
1214 ctrl_val |= ((rx_mask >> 4) << NAU8824_TDM_DACR_RX_SFT);
1216 ctrl_val |= (rx_mask << NAU8824_TDM_DACR_RX_SFT);
1218 regmap_update_bits(nau8824->regmap, NAU8824_REG_TDM_CTRL,
1219 NAU8824_TDM_MODE | NAU8824_TDM_OFFSET_EN |
1220 NAU8824_TDM_DACL_RX_MASK | NAU8824_TDM_DACR_RX_MASK |
1221 NAU8824_TDM_TX_MASK, ctrl_val);
1222 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_LEFT_TIME_SLOT,
1223 NAU8824_TSLOT_L_MASK, tslot_l);
1229 * nau8824_calc_fll_param - Calculate FLL parameters.
1230 * @fll_in: external clock provided to codec.
1231 * @fs: sampling rate.
1232 * @fll_param: Pointer to structure of FLL parameters.
1234 * Calculate FLL parameters to configure codec.
1236 * Returns 0 for success or negative error code.
1238 static int nau8824_calc_fll_param(unsigned int fll_in,
1239 unsigned int fs, struct nau8824_fll *fll_param)
1242 unsigned int fref, i, fvco_sel;
1244 /* Ensure the reference clock frequency (FREF) is <= 13.5MHz by dividing
1245 * freq_in by 1, 2, 4, or 8 using FLL pre-scalar.
1246 * FREF = freq_in / NAU8824_FLL_REF_DIV_MASK
1248 for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) {
1249 fref = fll_in / fll_pre_scalar[i].param;
1250 if (fref <= NAU_FREF_MAX)
1253 if (i == ARRAY_SIZE(fll_pre_scalar))
1255 fll_param->clk_ref_div = fll_pre_scalar[i].val;
1257 /* Choose the FLL ratio based on FREF */
1258 for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) {
1259 if (fref >= fll_ratio[i].param)
1262 if (i == ARRAY_SIZE(fll_ratio))
1264 fll_param->ratio = fll_ratio[i].val;
1266 /* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs.
1267 * FDCO must be within the 90MHz - 124MHz or the FFL cannot be
1268 * guaranteed across the full range of operation.
1269 * FDCO = freq_out * 2 * mclk_src_scaling
1272 fvco_sel = ARRAY_SIZE(mclk_src_scaling);
1273 for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) {
1274 fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param;
1275 if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX &&
1281 if (ARRAY_SIZE(mclk_src_scaling) == fvco_sel)
1283 fll_param->mclk_src = mclk_src_scaling[fvco_sel].val;
1285 /* Calculate the FLL 10-bit integer input and the FLL 16-bit fractional
1286 * input based on FDCO, FREF and FLL ratio.
1288 fvco = div_u64(fvco_max << 16, fref * fll_param->ratio);
1289 fll_param->fll_int = (fvco >> 16) & 0x3FF;
1290 fll_param->fll_frac = fvco & 0xFFFF;
1294 static void nau8824_fll_apply(struct regmap *regmap,
1295 struct nau8824_fll *fll_param)
1297 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1298 NAU8824_CLK_SRC_MASK | NAU8824_CLK_MCLK_SRC_MASK,
1299 NAU8824_CLK_SRC_MCLK | fll_param->mclk_src);
1300 regmap_update_bits(regmap, NAU8824_REG_FLL1,
1301 NAU8824_FLL_RATIO_MASK, fll_param->ratio);
1302 /* FLL 16-bit fractional input */
1303 regmap_write(regmap, NAU8824_REG_FLL2, fll_param->fll_frac);
1304 /* FLL 10-bit integer input */
1305 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1306 NAU8824_FLL_INTEGER_MASK, fll_param->fll_int);
1307 /* FLL pre-scaler */
1308 regmap_update_bits(regmap, NAU8824_REG_FLL4,
1309 NAU8824_FLL_REF_DIV_MASK,
1310 fll_param->clk_ref_div << NAU8824_FLL_REF_DIV_SFT);
1311 /* select divided VCO input */
1312 regmap_update_bits(regmap, NAU8824_REG_FLL5,
1313 NAU8824_FLL_CLK_SW_MASK, NAU8824_FLL_CLK_SW_REF);
1314 /* Disable free-running mode */
1315 regmap_update_bits(regmap,
1316 NAU8824_REG_FLL6, NAU8824_DCO_EN, 0);
1317 if (fll_param->fll_frac) {
1318 regmap_update_bits(regmap, NAU8824_REG_FLL5,
1319 NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN |
1320 NAU8824_FLL_FTR_SW_MASK,
1321 NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN |
1322 NAU8824_FLL_FTR_SW_FILTER);
1323 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1324 NAU8824_SDM_EN, NAU8824_SDM_EN);
1326 regmap_update_bits(regmap, NAU8824_REG_FLL5,
1327 NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN |
1328 NAU8824_FLL_FTR_SW_MASK, NAU8824_FLL_FTR_SW_ACCU);
1329 regmap_update_bits(regmap,
1330 NAU8824_REG_FLL6, NAU8824_SDM_EN, 0);
1334 /* freq_out must be 256*Fs in order to achieve the best performance */
1335 static int nau8824_set_pll(struct snd_soc_component *component, int pll_id, int source,
1336 unsigned int freq_in, unsigned int freq_out)
1338 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1339 struct nau8824_fll fll_param;
1342 fs = freq_out / 256;
1343 ret = nau8824_calc_fll_param(freq_in, fs, &fll_param);
1345 dev_err(nau8824->dev, "Unsupported input clock %d\n", freq_in);
1348 dev_dbg(nau8824->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n",
1349 fll_param.mclk_src, fll_param.ratio, fll_param.fll_frac,
1350 fll_param.fll_int, fll_param.clk_ref_div);
1352 nau8824_fll_apply(nau8824->regmap, &fll_param);
1354 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
1355 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_VCO);
1360 static int nau8824_config_sysclk(struct nau8824 *nau8824,
1361 int clk_id, unsigned int freq)
1363 struct regmap *regmap = nau8824->regmap;
1366 case NAU8824_CLK_DIS:
1367 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1368 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_MCLK);
1369 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1373 case NAU8824_CLK_MCLK:
1374 nau8824_sema_acquire(nau8824, HZ);
1375 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1376 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_MCLK);
1377 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1379 nau8824_sema_release(nau8824);
1382 case NAU8824_CLK_INTERNAL:
1383 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1384 NAU8824_DCO_EN, NAU8824_DCO_EN);
1385 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1386 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_VCO);
1389 case NAU8824_CLK_FLL_MCLK:
1390 nau8824_sema_acquire(nau8824, HZ);
1391 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1392 NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_MCLK);
1393 nau8824_sema_release(nau8824);
1396 case NAU8824_CLK_FLL_BLK:
1397 nau8824_sema_acquire(nau8824, HZ);
1398 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1399 NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_BLK);
1400 nau8824_sema_release(nau8824);
1403 case NAU8824_CLK_FLL_FS:
1404 nau8824_sema_acquire(nau8824, HZ);
1405 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1406 NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_FS);
1407 nau8824_sema_release(nau8824);
1411 dev_err(nau8824->dev, "Invalid clock id (%d)\n", clk_id);
1415 dev_dbg(nau8824->dev, "Sysclk is %dHz and clock id is %d\n", freq,
1421 static int nau8824_set_sysclk(struct snd_soc_component *component,
1422 int clk_id, int source, unsigned int freq, int dir)
1424 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1426 return nau8824_config_sysclk(nau8824, clk_id, freq);
1429 static void nau8824_resume_setup(struct nau8824 *nau8824)
1431 nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);
1433 /* Clear all interruption status */
1434 nau8824_int_status_clear_all(nau8824->regmap);
1435 /* Enable jack detection at sleep mode, insertion detection,
1436 * and ejection detection.
1438 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,
1439 NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE);
1440 regmap_update_bits(nau8824->regmap,
1441 NAU8824_REG_INTERRUPT_SETTING_1,
1442 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN,
1443 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN);
1444 regmap_update_bits(nau8824->regmap,
1445 NAU8824_REG_INTERRUPT_SETTING,
1446 NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_INSERT_DIS, 0);
1450 static int nau8824_set_bias_level(struct snd_soc_component *component,
1451 enum snd_soc_bias_level level)
1453 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1456 case SND_SOC_BIAS_ON:
1459 case SND_SOC_BIAS_PREPARE:
1462 case SND_SOC_BIAS_STANDBY:
1463 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1464 /* Setup codec configuration after resume */
1465 nau8824_resume_setup(nau8824);
1469 case SND_SOC_BIAS_OFF:
1470 regmap_update_bits(nau8824->regmap,
1471 NAU8824_REG_INTERRUPT_SETTING, 0x3ff, 0x3ff);
1472 regmap_update_bits(nau8824->regmap,
1473 NAU8824_REG_INTERRUPT_SETTING_1,
1474 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, 0);
1481 static int nau8824_component_probe(struct snd_soc_component *component)
1483 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1484 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
1486 nau8824->dapm = dapm;
1491 static int __maybe_unused nau8824_suspend(struct snd_soc_component *component)
1493 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1496 disable_irq(nau8824->irq);
1497 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
1499 regcache_cache_only(nau8824->regmap, true);
1500 regcache_mark_dirty(nau8824->regmap);
1505 static int __maybe_unused nau8824_resume(struct snd_soc_component *component)
1507 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1509 regcache_cache_only(nau8824->regmap, false);
1510 regcache_sync(nau8824->regmap);
1512 /* Hold semaphore to postpone playback happening
1513 * until jack detection done.
1515 nau8824_sema_acquire(nau8824, 0);
1516 enable_irq(nau8824->irq);
1522 static const struct snd_soc_component_driver nau8824_component_driver = {
1523 .probe = nau8824_component_probe,
1524 .set_sysclk = nau8824_set_sysclk,
1525 .set_pll = nau8824_set_pll,
1526 .set_bias_level = nau8824_set_bias_level,
1527 .suspend = nau8824_suspend,
1528 .resume = nau8824_resume,
1529 .controls = nau8824_snd_controls,
1530 .num_controls = ARRAY_SIZE(nau8824_snd_controls),
1531 .dapm_widgets = nau8824_dapm_widgets,
1532 .num_dapm_widgets = ARRAY_SIZE(nau8824_dapm_widgets),
1533 .dapm_routes = nau8824_dapm_routes,
1534 .num_dapm_routes = ARRAY_SIZE(nau8824_dapm_routes),
1535 .suspend_bias_off = 1,
1537 .use_pmdown_time = 1,
1539 .non_legacy_dai_naming = 1,
1542 static const struct snd_soc_dai_ops nau8824_dai_ops = {
1543 .hw_params = nau8824_hw_params,
1544 .set_fmt = nau8824_set_fmt,
1545 .set_tdm_slot = nau8824_set_tdm_slot,
1548 #define NAU8824_RATES SNDRV_PCM_RATE_8000_192000
1549 #define NAU8824_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
1550 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
1552 static struct snd_soc_dai_driver nau8824_dai = {
1553 .name = NAU8824_CODEC_DAI,
1555 .stream_name = "Playback",
1558 .rates = NAU8824_RATES,
1559 .formats = NAU8824_FORMATS,
1562 .stream_name = "Capture",
1565 .rates = NAU8824_RATES,
1566 .formats = NAU8824_FORMATS,
1568 .ops = &nau8824_dai_ops,
1571 static const struct regmap_config nau8824_regmap_config = {
1572 .val_bits = NAU8824_REG_ADDR_LEN,
1573 .reg_bits = NAU8824_REG_DATA_LEN,
1575 .max_register = NAU8824_REG_MAX,
1576 .readable_reg = nau8824_readable_reg,
1577 .writeable_reg = nau8824_writeable_reg,
1578 .volatile_reg = nau8824_volatile_reg,
1580 .cache_type = REGCACHE_RBTREE,
1581 .reg_defaults = nau8824_reg_defaults,
1582 .num_reg_defaults = ARRAY_SIZE(nau8824_reg_defaults),
1586 * nau8824_enable_jack_detect - Specify a jack for event reporting
1588 * @component: component to register the jack with
1589 * @jack: jack to use to report headset and button events on
1591 * After this function has been called the headset insert/remove and button
1592 * events will be routed to the given jack. Jack can be null to stop
1595 int nau8824_enable_jack_detect(struct snd_soc_component *component,
1596 struct snd_soc_jack *jack)
1598 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1601 nau8824->jack = jack;
1602 /* Initiate jack detection work queue */
1603 INIT_WORK(&nau8824->jdet_work, nau8824_jdet_work);
1604 ret = devm_request_threaded_irq(nau8824->dev, nau8824->irq, NULL,
1605 nau8824_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1606 "nau8824", nau8824);
1608 dev_err(nau8824->dev, "Cannot request irq %d (%d)\n",
1614 EXPORT_SYMBOL_GPL(nau8824_enable_jack_detect);
1616 static void nau8824_reset_chip(struct regmap *regmap)
1618 regmap_write(regmap, NAU8824_REG_RESET, 0x00);
1619 regmap_write(regmap, NAU8824_REG_RESET, 0x00);
1622 static void nau8824_setup_buttons(struct nau8824 *nau8824)
1624 struct regmap *regmap = nau8824->regmap;
1626 regmap_update_bits(regmap, NAU8824_REG_SAR_ADC,
1627 NAU8824_SAR_TRACKING_GAIN_MASK,
1628 nau8824->sar_voltage << NAU8824_SAR_TRACKING_GAIN_SFT);
1629 regmap_update_bits(regmap, NAU8824_REG_SAR_ADC,
1630 NAU8824_SAR_COMPARE_TIME_MASK,
1631 nau8824->sar_compare_time << NAU8824_SAR_COMPARE_TIME_SFT);
1632 regmap_update_bits(regmap, NAU8824_REG_SAR_ADC,
1633 NAU8824_SAR_SAMPLING_TIME_MASK,
1634 nau8824->sar_sampling_time << NAU8824_SAR_SAMPLING_TIME_SFT);
1636 regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT,
1637 NAU8824_LEVELS_NR_MASK,
1638 (nau8824->sar_threshold_num - 1) << NAU8824_LEVELS_NR_SFT);
1639 regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT,
1640 NAU8824_HYSTERESIS_MASK,
1641 nau8824->sar_hysteresis << NAU8824_HYSTERESIS_SFT);
1642 regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT,
1643 NAU8824_SHORTKEY_DEBOUNCE_MASK,
1644 nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT);
1646 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_1,
1647 (nau8824->sar_threshold[0] << 8) | nau8824->sar_threshold[1]);
1648 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_2,
1649 (nau8824->sar_threshold[2] << 8) | nau8824->sar_threshold[3]);
1650 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_3,
1651 (nau8824->sar_threshold[4] << 8) | nau8824->sar_threshold[5]);
1652 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_4,
1653 (nau8824->sar_threshold[6] << 8) | nau8824->sar_threshold[7]);
1656 static void nau8824_init_regs(struct nau8824 *nau8824)
1658 struct regmap *regmap = nau8824->regmap;
1660 /* Enable Bias/VMID/VMID Tieoff */
1661 regmap_update_bits(regmap, NAU8824_REG_BIAS_ADJ,
1662 NAU8824_VMID | NAU8824_VMID_SEL_MASK, NAU8824_VMID |
1663 (nau8824->vref_impedance << NAU8824_VMID_SEL_SFT));
1664 regmap_update_bits(regmap, NAU8824_REG_BOOST,
1665 NAU8824_GLOBAL_BIAS_EN, NAU8824_GLOBAL_BIAS_EN);
1667 regmap_update_bits(regmap, NAU8824_REG_MIC_BIAS,
1668 NAU8824_MICBIAS_VOLTAGE_MASK, nau8824->micbias_voltage);
1669 /* Disable Boost Driver, Automatic Short circuit protection enable */
1670 regmap_update_bits(regmap, NAU8824_REG_BOOST,
1671 NAU8824_PRECHARGE_DIS | NAU8824_HP_BOOST_DIS |
1672 NAU8824_HP_BOOST_G_DIS | NAU8824_SHORT_SHUTDOWN_EN,
1673 NAU8824_PRECHARGE_DIS | NAU8824_HP_BOOST_DIS |
1674 NAU8824_HP_BOOST_G_DIS | NAU8824_SHORT_SHUTDOWN_EN);
1675 /* Scaling for ADC and DAC clock */
1676 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1677 NAU8824_CLK_ADC_SRC_MASK | NAU8824_CLK_DAC_SRC_MASK,
1678 (0x1 << NAU8824_CLK_ADC_SRC_SFT) |
1679 (0x1 << NAU8824_CLK_DAC_SRC_SFT));
1680 regmap_update_bits(regmap, NAU8824_REG_DAC_MUTE_CTRL,
1681 NAU8824_DAC_ZC_EN, NAU8824_DAC_ZC_EN);
1682 regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL,
1683 NAU8824_DAC_CH1_EN | NAU8824_DAC_CH0_EN |
1684 NAU8824_ADC_CH0_EN | NAU8824_ADC_CH1_EN |
1685 NAU8824_ADC_CH2_EN | NAU8824_ADC_CH3_EN,
1686 NAU8824_DAC_CH1_EN | NAU8824_DAC_CH0_EN |
1687 NAU8824_ADC_CH0_EN | NAU8824_ADC_CH1_EN |
1688 NAU8824_ADC_CH2_EN | NAU8824_ADC_CH3_EN);
1689 regmap_update_bits(regmap, NAU8824_REG_CLK_GATING_ENA,
1690 NAU8824_CLK_ADC_CH23_EN | NAU8824_CLK_ADC_CH01_EN |
1691 NAU8824_CLK_DAC_CH1_EN | NAU8824_CLK_DAC_CH0_EN |
1692 NAU8824_CLK_I2S_EN | NAU8824_CLK_GAIN_EN |
1693 NAU8824_CLK_SAR_EN | NAU8824_CLK_DMIC_CH23_EN,
1694 NAU8824_CLK_ADC_CH23_EN | NAU8824_CLK_ADC_CH01_EN |
1695 NAU8824_CLK_DAC_CH1_EN | NAU8824_CLK_DAC_CH0_EN |
1696 NAU8824_CLK_I2S_EN | NAU8824_CLK_GAIN_EN |
1697 NAU8824_CLK_SAR_EN | NAU8824_CLK_DMIC_CH23_EN);
1698 /* Class G timer 64ms */
1699 regmap_update_bits(regmap, NAU8824_REG_CLASSG,
1700 NAU8824_CLASSG_TIMER_MASK,
1701 0x20 << NAU8824_CLASSG_TIMER_SFT);
1702 regmap_update_bits(regmap, NAU8824_REG_TRIM_SETTINGS,
1703 NAU8824_DRV_CURR_INC, NAU8824_DRV_CURR_INC);
1704 /* Disable DACR/L power */
1705 regmap_update_bits(regmap, NAU8824_REG_CHARGE_PUMP_CONTROL,
1706 NAU8824_SPKR_PULL_DOWN | NAU8824_SPKL_PULL_DOWN |
1707 NAU8824_POWER_DOWN_DACR | NAU8824_POWER_DOWN_DACL,
1708 NAU8824_SPKR_PULL_DOWN | NAU8824_SPKL_PULL_DOWN |
1709 NAU8824_POWER_DOWN_DACR | NAU8824_POWER_DOWN_DACL);
1710 /* Enable TESTDAC. This sets the analog DAC inputs to a '0' input
1711 * signal to avoid any glitches due to power up transients in both
1712 * the analog and digital DAC circuit.
1714 regmap_update_bits(regmap, NAU8824_REG_ENABLE_LO,
1715 NAU8824_TEST_DAC_EN, NAU8824_TEST_DAC_EN);
1716 /* Config L/R channel */
1717 regmap_update_bits(regmap, NAU8824_REG_DAC_CH0_DGAIN_CTRL,
1718 NAU8824_DAC_CH0_SEL_MASK, NAU8824_DAC_CH0_SEL_I2S0);
1719 regmap_update_bits(regmap, NAU8824_REG_DAC_CH1_DGAIN_CTRL,
1720 NAU8824_DAC_CH1_SEL_MASK, NAU8824_DAC_CH1_SEL_I2S1);
1721 regmap_update_bits(regmap, NAU8824_REG_ENABLE_LO,
1722 NAU8824_DACR_HPR_EN | NAU8824_DACL_HPL_EN,
1723 NAU8824_DACR_HPR_EN | NAU8824_DACL_HPL_EN);
1724 /* Default oversampling/decimations settings are unusable
1725 * (audible hiss). Set it to something better.
1727 regmap_update_bits(regmap, NAU8824_REG_ADC_FILTER_CTRL,
1728 NAU8824_ADC_SYNC_DOWN_MASK, NAU8824_ADC_SYNC_DOWN_64);
1729 regmap_update_bits(regmap, NAU8824_REG_DAC_FILTER_CTRL_1,
1730 NAU8824_DAC_CICCLP_OFF | NAU8824_DAC_OVERSAMPLE_MASK,
1731 NAU8824_DAC_CICCLP_OFF | NAU8824_DAC_OVERSAMPLE_64);
1732 /* DAC clock delay 2ns, VREF */
1733 regmap_update_bits(regmap, NAU8824_REG_RDAC,
1734 NAU8824_RDAC_CLK_DELAY_MASK | NAU8824_RDAC_VREF_MASK,
1735 (0x2 << NAU8824_RDAC_CLK_DELAY_SFT) |
1736 (0x3 << NAU8824_RDAC_VREF_SFT));
1737 /* PGA input mode selection */
1738 regmap_update_bits(regmap, NAU8824_REG_FEPGA,
1739 NAU8824_FEPGA_MODEL_SHORT_EN | NAU8824_FEPGA_MODER_SHORT_EN,
1740 NAU8824_FEPGA_MODEL_SHORT_EN | NAU8824_FEPGA_MODER_SHORT_EN);
1741 /* Digital microphone control */
1742 regmap_update_bits(regmap, NAU8824_REG_ANALOG_CONTROL_1,
1743 NAU8824_DMIC_CLK_DRV_STRG | NAU8824_DMIC_CLK_SLEW_FAST,
1744 NAU8824_DMIC_CLK_DRV_STRG | NAU8824_DMIC_CLK_SLEW_FAST);
1745 regmap_update_bits(regmap, NAU8824_REG_JACK_DET_CTRL,
1747 /* jkdet_polarity - 1 is for active-low */
1748 nau8824->jkdet_polarity ? 0 : NAU8824_JACK_LOGIC);
1749 regmap_update_bits(regmap,
1750 NAU8824_REG_JACK_DET_CTRL, NAU8824_JACK_EJECT_DT_MASK,
1751 (nau8824->jack_eject_debounce << NAU8824_JACK_EJECT_DT_SFT));
1752 if (nau8824->sar_threshold_num)
1753 nau8824_setup_buttons(nau8824);
1756 static int nau8824_setup_irq(struct nau8824 *nau8824)
1758 /* Disable interruption before codec initiation done */
1759 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,
1760 NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE);
1761 regmap_update_bits(nau8824->regmap,
1762 NAU8824_REG_INTERRUPT_SETTING, 0x3ff, 0x3ff);
1763 regmap_update_bits(nau8824->regmap, NAU8824_REG_INTERRUPT_SETTING_1,
1764 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, 0);
1769 static void nau8824_print_device_properties(struct nau8824 *nau8824)
1771 struct device *dev = nau8824->dev;
1774 dev_dbg(dev, "jkdet-polarity: %d\n", nau8824->jkdet_polarity);
1775 dev_dbg(dev, "micbias-voltage: %d\n", nau8824->micbias_voltage);
1776 dev_dbg(dev, "vref-impedance: %d\n", nau8824->vref_impedance);
1778 dev_dbg(dev, "sar-threshold-num: %d\n", nau8824->sar_threshold_num);
1779 for (i = 0; i < nau8824->sar_threshold_num; i++)
1780 dev_dbg(dev, "sar-threshold[%d]=%x\n", i,
1781 nau8824->sar_threshold[i]);
1783 dev_dbg(dev, "sar-hysteresis: %d\n", nau8824->sar_hysteresis);
1784 dev_dbg(dev, "sar-voltage: %d\n", nau8824->sar_voltage);
1785 dev_dbg(dev, "sar-compare-time: %d\n", nau8824->sar_compare_time);
1786 dev_dbg(dev, "sar-sampling-time: %d\n", nau8824->sar_sampling_time);
1787 dev_dbg(dev, "short-key-debounce: %d\n", nau8824->key_debounce);
1788 dev_dbg(dev, "jack-eject-debounce: %d\n",
1789 nau8824->jack_eject_debounce);
1792 static int nau8824_read_device_properties(struct device *dev,
1793 struct nau8824 *nau8824) {
1796 ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity",
1797 &nau8824->jkdet_polarity);
1799 nau8824->jkdet_polarity = 1;
1800 ret = device_property_read_u32(dev, "nuvoton,micbias-voltage",
1801 &nau8824->micbias_voltage);
1803 nau8824->micbias_voltage = 6;
1804 ret = device_property_read_u32(dev, "nuvoton,vref-impedance",
1805 &nau8824->vref_impedance);
1807 nau8824->vref_impedance = 2;
1808 ret = device_property_read_u32(dev, "nuvoton,sar-threshold-num",
1809 &nau8824->sar_threshold_num);
1811 nau8824->sar_threshold_num = 4;
1812 ret = device_property_read_u32_array(dev, "nuvoton,sar-threshold",
1813 nau8824->sar_threshold, nau8824->sar_threshold_num);
1815 nau8824->sar_threshold[0] = 0x0a;
1816 nau8824->sar_threshold[1] = 0x14;
1817 nau8824->sar_threshold[2] = 0x26;
1818 nau8824->sar_threshold[3] = 0x73;
1820 ret = device_property_read_u32(dev, "nuvoton,sar-hysteresis",
1821 &nau8824->sar_hysteresis);
1823 nau8824->sar_hysteresis = 0;
1824 ret = device_property_read_u32(dev, "nuvoton,sar-voltage",
1825 &nau8824->sar_voltage);
1827 nau8824->sar_voltage = 6;
1828 ret = device_property_read_u32(dev, "nuvoton,sar-compare-time",
1829 &nau8824->sar_compare_time);
1831 nau8824->sar_compare_time = 1;
1832 ret = device_property_read_u32(dev, "nuvoton,sar-sampling-time",
1833 &nau8824->sar_sampling_time);
1835 nau8824->sar_sampling_time = 1;
1836 ret = device_property_read_u32(dev, "nuvoton,short-key-debounce",
1837 &nau8824->key_debounce);
1839 nau8824->key_debounce = 0;
1840 ret = device_property_read_u32(dev, "nuvoton,jack-eject-debounce",
1841 &nau8824->jack_eject_debounce);
1843 nau8824->jack_eject_debounce = 1;
1848 static int nau8824_i2c_probe(struct i2c_client *i2c,
1849 const struct i2c_device_id *id)
1851 struct device *dev = &i2c->dev;
1852 struct nau8824 *nau8824 = dev_get_platdata(dev);
1856 nau8824 = devm_kzalloc(dev, sizeof(*nau8824), GFP_KERNEL);
1859 ret = nau8824_read_device_properties(dev, nau8824);
1863 i2c_set_clientdata(i2c, nau8824);
1865 nau8824->regmap = devm_regmap_init_i2c(i2c, &nau8824_regmap_config);
1866 if (IS_ERR(nau8824->regmap))
1867 return PTR_ERR(nau8824->regmap);
1869 nau8824->irq = i2c->irq;
1870 sema_init(&nau8824->jd_sem, 1);
1872 nau8824_print_device_properties(nau8824);
1874 ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value);
1876 dev_err(dev, "Failed to read device id from the NAU8824: %d\n",
1880 nau8824_reset_chip(nau8824->regmap);
1881 nau8824_init_regs(nau8824);
1884 nau8824_setup_irq(nau8824);
1886 return devm_snd_soc_register_component(dev,
1887 &nau8824_component_driver, &nau8824_dai, 1);
1890 static const struct i2c_device_id nau8824_i2c_ids[] = {
1894 MODULE_DEVICE_TABLE(i2c, nau8824_i2c_ids);
1897 static const struct of_device_id nau8824_of_ids[] = {
1898 { .compatible = "nuvoton,nau8824", },
1901 MODULE_DEVICE_TABLE(of, nau8824_of_ids);
1905 static const struct acpi_device_id nau8824_acpi_match[] = {
1909 MODULE_DEVICE_TABLE(acpi, nau8824_acpi_match);
1912 static struct i2c_driver nau8824_i2c_driver = {
1915 .of_match_table = of_match_ptr(nau8824_of_ids),
1916 .acpi_match_table = ACPI_PTR(nau8824_acpi_match),
1918 .probe = nau8824_i2c_probe,
1919 .id_table = nau8824_i2c_ids,
1921 module_i2c_driver(nau8824_i2c_driver);
1924 MODULE_DESCRIPTION("ASoC NAU88L24 driver");
1925 MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>");
1926 MODULE_LICENSE("GPL v2");