xref: /linux/sound/soc/codecs/es8323.c (revision 9208c05f9fdfd927ea160b97dfef3c379049fff2)
1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // es8323.c -- es8323 ALSA SoC audio driver
4 //
5 // Copyright 2024 Rockchip Electronics Co. Ltd.
6 // Copyright 2024 Everest Semiconductor Co.,Ltd.
7 // Copyright 2024 Loongson Technology Co.,Ltd.
8 //
9 // Author: Mark Brown <broonie@kernel.org>
10 //         Jianqun Xu <jay.xu@rock-chips.com>
11 //         Nickey Yang <nickey.yang@rock-chips.com>
12 // Further cleanup and restructuring by:
13 //         Binbin Zhou <zhoubinbin@loongson.cn>
14 
15 #include <linux/module.h>
16 #include <linux/acpi.h>
17 #include <linux/clk.h>
18 #include <linux/delay.h>
19 #include <linux/i2c.h>
20 #include <linux/mod_devicetable.h>
21 #include <linux/regmap.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/soc.h>
25 #include <sound/soc-dapm.h>
26 #include <sound/tlv.h>
27 
28 #include "es8323.h"
29 
30 struct es8323_priv {
31 	unsigned int sysclk;
32 	struct clk *mclk;
33 	struct regmap *regmap;
34 	struct snd_pcm_hw_constraint_list *sysclk_constraints;
35 	struct snd_soc_component *component;
36 };
37 
38 /* es8323 register cache */
39 static const struct reg_default es8323_reg_defaults[] = {
40 	{ ES8323_CONTROL1,     0x06 },
41 	{ ES8323_CONTROL2,     0x1c },
42 	{ ES8323_CHIPPOWER,    0xc3 },
43 	{ ES8323_ADCPOWER,     0xfc },
44 	{ ES8323_DACPOWER,     0xc0 },
45 	{ ES8323_CHIPLOPOW1,   0x00 },
46 	{ ES8323_CHIPLOPOW2,   0x00 },
47 	{ ES8323_ANAVOLMANAG,  0x7c },
48 	{ ES8323_MASTERMODE,   0x80 },
49 	{ ES8323_ADCCONTROL1,  0x00 },
50 	{ ES8323_ADCCONTROL2,  0x00 },
51 	{ ES8323_ADCCONTROL3,  0x06 },
52 	{ ES8323_ADCCONTROL4,  0x00 },
53 	{ ES8323_ADCCONTROL5,  0x06 },
54 	{ ES8323_ADCCONTROL6,  0x30 },
55 	{ ES8323_ADC_MUTE,     0x30 },
56 	{ ES8323_LADC_VOL,     0xc0 },
57 	{ ES8323_RADC_VOL,     0xc0 },
58 	{ ES8323_ADCCONTROL10, 0x38 },
59 	{ ES8323_ADCCONTROL11, 0xb0 },
60 	{ ES8323_ADCCONTROL12, 0x32 },
61 	{ ES8323_ADCCONTROL13, 0x06 },
62 	{ ES8323_ADCCONTROL14, 0x00 },
63 	{ ES8323_DACCONTROL1,  0x00 },
64 	{ ES8323_DACCONTROL2,  0x06 },
65 	{ ES8323_DAC_MUTE,     0x30 },
66 	{ ES8323_LDAC_VOL,     0xc0 },
67 	{ ES8323_RDAC_VOL,     0xc0 },
68 	{ ES8323_DACCONTROL6,  0x08 },
69 	{ ES8323_DACCONTROL7,  0x06 },
70 	{ ES8323_DACCONTROL8,  0x1f },
71 	{ ES8323_DACCONTROL9,  0xf7 },
72 	{ ES8323_DACCONTROL10, 0xfd },
73 	{ ES8323_DACCONTROL11, 0xff },
74 	{ ES8323_DACCONTROL12, 0x1f },
75 	{ ES8323_DACCONTROL13, 0xf7 },
76 	{ ES8323_DACCONTROL14, 0xfd },
77 	{ ES8323_DACCONTROL15, 0xff },
78 	{ ES8323_DACCONTROL16, 0x00 },
79 	{ ES8323_DACCONTROL17, 0x38 },
80 	{ ES8323_DACCONTROL18, 0x38 },
81 	{ ES8323_DACCONTROL19, 0x38 },
82 	{ ES8323_DACCONTROL20, 0x38 },
83 	{ ES8323_DACCONTROL21, 0x38 },
84 	{ ES8323_DACCONTROL22, 0x38 },
85 	{ ES8323_DACCONTROL23, 0x00 },
86 	{ ES8323_LOUT1_VOL,    0x00 },
87 	{ ES8323_ROUT1_VOL,    0x00 },
88 };
89 
90 static const char *const es8323_stereo_3d_texts[] = { "No 3D  ", "Level 1", "Level 2", "Level 3",
91 						      "Level 4", "Level 5", "Level 6", "Level 7" };
92 static SOC_ENUM_SINGLE_DECL(es8323_stereo_3d_enum, ES8323_DACCONTROL7, 2, es8323_stereo_3d_texts);
93 
94 static const char *const es8323_alc_func_texts[] = { "Off", "Right", "Left", "Stereo" };
95 static SOC_ENUM_SINGLE_DECL(es8323_alc_function_enum,
96 			    ES8323_ADCCONTROL10, 6, es8323_alc_func_texts);
97 
98 static const char *const es8323_ng_type_texts[] = { "Constant PGA Gain", "Mute ADC Output" };
99 static SOC_ENUM_SINGLE_DECL(es8323_alc_ng_type_enum, ES8323_ADCCONTROL14, 1, es8323_ng_type_texts);
100 
101 static const char *const es8323_deemph_texts[] = { "None", "32Khz", "44.1Khz", "48Khz" };
102 static SOC_ENUM_SINGLE_DECL(es8323_playback_deemphasis_enum,
103 			    ES8323_DACCONTROL6, 6, es8323_deemph_texts);
104 
105 static const char *const es8323_adcpol_texts[] = { "Normal", "L Invert",
106 						   "R Invert", "L + R Invert" };
107 static SOC_ENUM_SINGLE_DECL(es8323_capture_polarity_enum,
108 			    ES8323_ADCCONTROL6, 6, es8323_adcpol_texts);
109 
110 static const DECLARE_TLV_DB_SCALE(es8323_adc_tlv, -9600, 50, 1);
111 static const DECLARE_TLV_DB_SCALE(es8323_dac_tlv, -9600, 50, 1);
112 static const DECLARE_TLV_DB_SCALE(es8323_out_tlv, -4500, 150, 0);
113 static const DECLARE_TLV_DB_SCALE(es8323_bypass_tlv, 0, 300, 0);
114 static const DECLARE_TLV_DB_SCALE(es8323_bypass_tlv2, -15, 300, 0);
115 
116 static const struct snd_kcontrol_new es8323_snd_controls[] = {
117 	SOC_ENUM("3D Mode", es8323_stereo_3d_enum),
118 	SOC_ENUM("ALC Capture Function", es8323_alc_function_enum),
119 	SOC_ENUM("ALC Capture NG Type", es8323_alc_ng_type_enum),
120 	SOC_ENUM("Playback De-emphasis", es8323_playback_deemphasis_enum),
121 	SOC_ENUM("Capture Polarity", es8323_capture_polarity_enum),
122 	SOC_SINGLE("ALC Capture ZC Switch", ES8323_ADCCONTROL13, 6, 1, 0),
123 	SOC_SINGLE("ALC Capture Decay Time", ES8323_ADCCONTROL12, 4, 15, 0),
124 	SOC_SINGLE("ALC Capture Attack Time", ES8323_ADCCONTROL12, 0, 15, 0),
125 	SOC_SINGLE("ALC Capture NG Threshold", ES8323_ADCCONTROL14, 3, 31, 0),
126 	SOC_SINGLE("ALC Capture NG Switch", ES8323_ADCCONTROL14, 0, 1, 0),
127 	SOC_SINGLE("ZC Timeout Switch", ES8323_ADCCONTROL13, 6, 1, 0),
128 	SOC_SINGLE("Capture Mute Switch", ES8323_ADC_MUTE, 2, 1, 0),
129 	SOC_SINGLE_TLV("Left Channel Capture Volume", ES8323_ADCCONTROL1, 4, 8,
130 		       0, es8323_bypass_tlv),
131 	SOC_SINGLE_TLV("Right Channel Capture Volume", ES8323_ADCCONTROL1, 0,
132 		       8, 0, es8323_bypass_tlv),
133 	SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", ES8323_DACCONTROL17, 3,
134 		       7, 1, es8323_bypass_tlv2),
135 	SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", ES8323_DACCONTROL20,
136 		       3, 7, 1, es8323_bypass_tlv2),
137 	SOC_DOUBLE_R_TLV("PCM Volume", ES8323_LDAC_VOL, ES8323_RDAC_VOL,
138 			 0, 192, 1, es8323_dac_tlv),
139 	SOC_DOUBLE_R_TLV("Capture Digital Volume", ES8323_LADC_VOL,
140 			 ES8323_RADC_VOL, 0, 192, 1, es8323_adc_tlv),
141 	SOC_DOUBLE_R_TLV("Output 1 Playback Volume", ES8323_LOUT1_VOL,
142 			 ES8323_ROUT1_VOL, 0, 33, 0, es8323_out_tlv),
143 	SOC_DOUBLE_R_TLV("Output 2 Playback Volume", ES8323_LOUT2_VOL,
144 			 ES8323_ROUT2_VOL, 0, 33, 0, es8323_out_tlv),
145 };
146 
147 /* Left DAC Route */
148 static const char *const es8323_pga_sell[] = { "Line 1L", "Line 2L", "NC", "DifferentialL" };
149 static SOC_ENUM_SINGLE_DECL(es8323_left_dac_enum, ES8323_ADCCONTROL2, 6, es8323_pga_sell);
150 static const struct snd_kcontrol_new es8323_left_dac_mux_controls =
151 	SOC_DAPM_ENUM("Left DAC Route", es8323_left_dac_enum);
152 
153 /* Right DAC Route */
154 static const char *const es8323_pga_selr[] = { "Line 1R", "Line 2R", "NC", "DifferentialR" };
155 static SOC_ENUM_SINGLE_DECL(es8323_right_dac_enum, ES8323_ADCCONTROL2, 4, es8323_pga_selr);
156 static const struct snd_kcontrol_new es8323_right_dac_mux_controls =
157 	SOC_DAPM_ENUM("Right DAC Route", es8323_right_dac_enum);
158 
159 /* Left Line Mux */
160 static const char *const es8323_lin_sell[] = { "Line 1L", "Line 2L", "NC", "MicL" };
161 static SOC_ENUM_SINGLE_DECL(es8323_llin_enum, ES8323_DACCONTROL16, 3, es8323_lin_sell);
162 static const struct snd_kcontrol_new es8323_left_line_controls =
163 	SOC_DAPM_ENUM("LLIN Mux", es8323_llin_enum);
164 
165 /* Right Line Mux */
166 static const char *const es8323_lin_selr[] = { "Line 1R", "Line 2R", "NC", "MicR" };
167 static SOC_ENUM_SINGLE_DECL(es8323_rlin_enum, ES8323_DACCONTROL16, 0, es8323_lin_selr);
168 static const struct snd_kcontrol_new es8323_right_line_controls =
169 	SOC_DAPM_ENUM("RLIN Mux", es8323_rlin_enum);
170 
171 /* Differential Mux */
172 static const char *const es8323_diffmux_sel[] = { "Line 1", "Line 2" };
173 static SOC_ENUM_SINGLE_DECL(es8323_diffmux_enum, ES8323_ADCCONTROL3, 7, es8323_diffmux_sel);
174 static const struct snd_kcontrol_new es8323_diffmux_controls =
175 	SOC_DAPM_ENUM("Route2", es8323_diffmux_enum);
176 
177 /* Mono ADC Mux */
178 static const char *const es8323_mono_adc_mux[] = { "Stereo", "Mono (Left)", "Mono (Right)" };
179 static SOC_ENUM_SINGLE_DECL(es8323_mono_adc_mux_enum, ES8323_ADCCONTROL3, 3, es8323_mono_adc_mux);
180 static const struct snd_kcontrol_new es8323_mono_adc_mux_controls =
181 	SOC_DAPM_ENUM("Mono Mux", es8323_mono_adc_mux_enum);
182 
183 /* Left Mixer */
184 static const struct snd_kcontrol_new es8323_left_mixer_controls[] = {
185 	SOC_DAPM_SINGLE("Left Playback Switch", SND_SOC_NOPM, 7, 1, 1),
186 	SOC_DAPM_SINGLE("Left Bypass Switch", ES8323_DACCONTROL17, 6, 1, 0),
187 };
188 
189 /* Right Mixer */
190 static const struct snd_kcontrol_new es8323_right_mixer_controls[] = {
191 	SOC_DAPM_SINGLE("Right Playback Switch", SND_SOC_NOPM, 6, 1, 1),
192 	SOC_DAPM_SINGLE("Right Bypass Switch", ES8323_DACCONTROL20, 6, 1, 0),
193 };
194 
195 static const struct snd_soc_dapm_widget es8323_dapm_widgets[] = {
196 	SND_SOC_DAPM_INPUT("LINPUT1"),
197 	SND_SOC_DAPM_INPUT("LINPUT2"),
198 	SND_SOC_DAPM_INPUT("RINPUT1"),
199 	SND_SOC_DAPM_INPUT("RINPUT2"),
200 
201 	SND_SOC_DAPM_MICBIAS("Mic Bias", SND_SOC_NOPM, 3, 1),
202 
203 	/* Muxes */
204 	SND_SOC_DAPM_MUX("Left PGA Mux", SND_SOC_NOPM, 0, 0, &es8323_left_dac_mux_controls),
205 	SND_SOC_DAPM_MUX("Right PGA Mux", SND_SOC_NOPM, 0, 0, &es8323_right_dac_mux_controls),
206 	SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, &es8323_diffmux_controls),
207 	SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, &es8323_mono_adc_mux_controls),
208 	SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, &es8323_mono_adc_mux_controls),
209 	SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, &es8323_left_line_controls),
210 	SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, &es8323_right_line_controls),
211 
212 	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", SND_SOC_NOPM, 4, 1),
213 	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", SND_SOC_NOPM, 5, 1),
214 	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", SND_SOC_NOPM, 6, 1),
215 	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", SND_SOC_NOPM, 7, 1),
216 
217 	SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
218 			   &es8323_left_mixer_controls[0],
219 			   ARRAY_SIZE(es8323_left_mixer_controls)),
220 	SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
221 			   &es8323_right_mixer_controls[0],
222 			   ARRAY_SIZE(es8323_right_mixer_controls)),
223 
224 	SND_SOC_DAPM_PGA("Right ADC Power", SND_SOC_NOPM, 6, 1, NULL, 0),
225 	SND_SOC_DAPM_PGA("Left ADC Power", SND_SOC_NOPM, 7, 1, NULL, 0),
226 	SND_SOC_DAPM_PGA("Right Out 2", SND_SOC_NOPM, 2, 0, NULL, 0),
227 	SND_SOC_DAPM_PGA("Left Out 2", SND_SOC_NOPM, 3, 0, NULL, 0),
228 	SND_SOC_DAPM_PGA("Right Out 1", SND_SOC_NOPM, 4, 0, NULL, 0),
229 	SND_SOC_DAPM_PGA("Left Out 1", SND_SOC_NOPM, 5, 0, NULL, 0),
230 	SND_SOC_DAPM_PGA("LAMP", ES8323_ADCCONTROL1, 4, 0, NULL, 0),
231 	SND_SOC_DAPM_PGA("RAMP", ES8323_ADCCONTROL1, 0, 0, NULL, 0),
232 
233 	SND_SOC_DAPM_OUTPUT("LOUT1"),
234 	SND_SOC_DAPM_OUTPUT("ROUT1"),
235 	SND_SOC_DAPM_OUTPUT("LOUT2"),
236 	SND_SOC_DAPM_OUTPUT("ROUT2"),
237 	SND_SOC_DAPM_OUTPUT("VREF"),
238 };
239 
240 static const struct snd_soc_dapm_route es8323_dapm_routes[] = {
241 	/*12.22*/
242 	{"Left PGA Mux", "Line 1L", "LINPUT1"},
243 	{"Left PGA Mux", "Line 2L", "LINPUT2"},
244 	{"Left PGA Mux", "DifferentialL", "Differential Mux"},
245 
246 	{"Right PGA Mux", "Line 1R", "RINPUT1"},
247 	{"Right PGA Mux", "Line 2R", "RINPUT2"},
248 	{"Right PGA Mux", "DifferentialR", "Differential Mux"},
249 
250 	{"Differential Mux", "Line 1", "LINPUT1"},
251 	{"Differential Mux", "Line 1", "RINPUT1"},
252 	{"Differential Mux", "Line 2", "LINPUT2"},
253 	{"Differential Mux", "Line 2", "RINPUT2"},
254 
255 	{"Left ADC Mux", "Stereo", "Right PGA Mux"},
256 	{"Left ADC Mux", "Stereo", "Left PGA Mux"},
257 	{"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
258 
259 	{"Right ADC Mux", "Stereo", "Left PGA Mux"},
260 	{"Right ADC Mux", "Stereo", "Right PGA Mux"},
261 	{"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
262 
263 	{"Left ADC Power", NULL, "Left ADC Mux"},
264 	{"Right ADC Power", NULL, "Right ADC Mux"},
265 	{"Left ADC", NULL, "Left ADC Power"},
266 	{"Right ADC", NULL, "Right ADC Power"},
267 
268 	{"Left Line Mux", "Line 1L", "LINPUT1"},
269 	{"Left Line Mux", "Line 2L", "LINPUT2"},
270 	{"Left Line Mux", "MicL", "Left PGA Mux"},
271 
272 	{"Right Line Mux", "Line 1R", "RINPUT1"},
273 	{"Right Line Mux", "Line 2R", "RINPUT2"},
274 	{"Right Line Mux", "MicR", "Right PGA Mux"},
275 
276 	{"Left Mixer", "Left Playback Switch", "Left DAC"},
277 	{"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
278 
279 	{"Right Mixer", "Right Playback Switch", "Right DAC"},
280 	{"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
281 
282 	{"Left Out 1", NULL, "Left Mixer"},
283 	{"LOUT1", NULL, "Left Out 1"},
284 	{"Right Out 1", NULL, "Right Mixer"},
285 	{"ROUT1", NULL, "Right Out 1"},
286 
287 	{"Left Out 2", NULL, "Left Mixer"},
288 	{"LOUT2", NULL, "Left Out 2"},
289 	{"Right Out 2", NULL, "Right Mixer"},
290 	{"ROUT2", NULL, "Right Out 2"},
291 };
292 
293 struct coeff_div {
294 	u32 mclk;
295 	u32 rate;
296 	u16 fs;
297 	u8 sr:4;
298 	u8 usb:1;
299 };
300 
301 /* codec hifi mclk clock divider coefficients */
302 static const struct coeff_div es8323_coeff_div[] = {
303 	/* 8k */
304 	{12288000, 8000, 1536, 0xa, 0x0},
305 	{11289600, 8000, 1408, 0x9, 0x0},
306 	{18432000, 8000, 2304, 0xc, 0x0},
307 	{16934400, 8000, 2112, 0xb, 0x0},
308 	{12000000, 8000, 1500, 0xb, 0x1},
309 
310 	/* 11.025k */
311 	{11289600, 11025, 1024, 0x7, 0x0},
312 	{16934400, 11025, 1536, 0xa, 0x0},
313 	{12000000, 11025, 1088, 0x9, 0x1},
314 
315 	/* 16k */
316 	{12288000, 16000, 768, 0x6, 0x0},
317 	{18432000, 16000, 1152, 0x8, 0x0},
318 	{12000000, 16000, 750, 0x7, 0x1},
319 
320 	/* 22.05k */
321 	{11289600, 22050, 512, 0x4, 0x0},
322 	{16934400, 22050, 768, 0x6, 0x0},
323 	{12000000, 22050, 544, 0x6, 0x1},
324 
325 	/* 32k */
326 	{12288000, 32000, 384, 0x3, 0x0},
327 	{18432000, 32000, 576, 0x5, 0x0},
328 	{12000000, 32000, 375, 0x4, 0x1},
329 
330 	/* 44.1k */
331 	{11289600, 44100, 256, 0x2, 0x0},
332 	{16934400, 44100, 384, 0x3, 0x0},
333 	{12000000, 44100, 272, 0x3, 0x1},
334 
335 	/* 48k */
336 	{12288000, 48000, 256, 0x2, 0x0},
337 	{18432000, 48000, 384, 0x3, 0x0},
338 	{12000000, 48000, 250, 0x2, 0x1},
339 
340 	/* 88.2k */
341 	{11289600, 88200, 128, 0x0, 0x0},
342 	{16934400, 88200, 192, 0x1, 0x0},
343 	{12000000, 88200, 136, 0x1, 0x1},
344 
345 	/* 96k */
346 	{12288000, 96000, 128, 0x0, 0x0},
347 	{18432000, 96000, 192, 0x1, 0x0},
348 	{12000000, 96000, 125, 0x0, 0x1},
349 };
350 
351 static unsigned int rates_12288[] = {
352 	8000, 12000, 16000, 24000, 24000, 32000, 48000, 96000,
353 };
354 
355 static struct snd_pcm_hw_constraint_list constraints_12288 = {
356 	.count = ARRAY_SIZE(rates_12288),
357 	.list = rates_12288,
358 };
359 
360 static unsigned int rates_112896[] = {
361 	8000, 11025, 22050, 44100,
362 };
363 
364 static struct snd_pcm_hw_constraint_list constraints_112896 = {
365 	.count = ARRAY_SIZE(rates_112896),
366 	.list = rates_112896,
367 };
368 
369 static unsigned int rates_12[] = {
370 	8000, 11025, 12000, 16000, 22050, 24000,
371 	32000, 44100, 48000, 48000, 88235, 96000,
372 };
373 
374 static struct snd_pcm_hw_constraint_list constraints_12 = {
375 	.count = ARRAY_SIZE(rates_12),
376 	.list = rates_12,
377 };
378 
379 static inline int get_coeff(int mclk, int rate)
380 {
381 	int i;
382 
383 	for (i = 0; i < ARRAY_SIZE(es8323_coeff_div); i++) {
384 		if (es8323_coeff_div[i].rate == rate &&
385 		    es8323_coeff_div[i].mclk == mclk)
386 			return i;
387 	}
388 
389 	return -EINVAL;
390 }
391 
392 static int es8323_set_dai_sysclk(struct snd_soc_dai *codec_dai,
393 				 int clk_id, unsigned int freq, int dir)
394 {
395 	struct snd_soc_component *component = codec_dai->component;
396 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
397 
398 	switch (freq) {
399 	case 11289600:
400 	case 18432000:
401 	case 22579200:
402 	case 36864000:
403 		es8323->sysclk_constraints = &constraints_112896;
404 		break;
405 	case 12288000:
406 	case 16934400:
407 	case 24576000:
408 	case 33868800:
409 		es8323->sysclk_constraints = &constraints_12288;
410 		break;
411 	case 12000000:
412 	case 24000000:
413 		es8323->sysclk_constraints = &constraints_12;
414 		break;
415 	default:
416 		return -EINVAL;
417 	}
418 
419 	es8323->sysclk = freq;
420 	return 0;
421 }
422 
423 static int es8323_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
424 {
425 	struct snd_soc_component *component = codec_dai->component;
426 	u8 iface = snd_soc_component_read(component, ES8323_MASTERMODE);
427 	u8 adciface = snd_soc_component_read(component, ES8323_ADC_IFACE);
428 	u8 daciface = snd_soc_component_read(component, ES8323_DAC_IFACE);
429 
430 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
431 	case SND_SOC_DAIFMT_BC_FP:
432 		iface |= 0x80;
433 		break;
434 	case SND_SOC_DAIFMT_BC_FC:
435 		iface &= 0x7f;
436 		break;
437 	default:
438 		return -EINVAL;
439 	}
440 
441 	/* interface format */
442 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
443 	case SND_SOC_DAIFMT_I2S:
444 		adciface &= 0xfc;
445 		daciface &= 0xf8;
446 		break;
447 	case SND_SOC_DAIFMT_LEFT_J:
448 		adciface &= 0xfd;
449 		daciface &= 0xf9;
450 		break;
451 	case SND_SOC_DAIFMT_RIGHT_J:
452 		adciface &= 0xfe;
453 		daciface &= 0xfa;
454 		break;
455 	case SND_SOC_DAIFMT_DSP_A:
456 	case SND_SOC_DAIFMT_DSP_B:
457 		adciface &= 0xff;
458 		daciface &= 0xfb;
459 		break;
460 	default:
461 		return -EINVAL;
462 	}
463 
464 	/* clock inversion */
465 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
466 	case SND_SOC_DAIFMT_NB_NF:
467 		iface &= 0xdf;
468 		adciface &= 0xdf;
469 		daciface &= 0xbf;
470 		break;
471 	case SND_SOC_DAIFMT_IB_IF:
472 		iface |= 0x20;
473 		adciface |= 0x20;
474 		daciface |= 0x40;
475 		break;
476 	case SND_SOC_DAIFMT_IB_NF:
477 		iface |= 0x20;
478 		adciface &= 0xdf;
479 		daciface &= 0xbf;
480 		break;
481 	case SND_SOC_DAIFMT_NB_IF:
482 		iface &= 0xdf;
483 		adciface |= 0x20;
484 		daciface |= 0x40;
485 		break;
486 	default:
487 		return -EINVAL;
488 	}
489 
490 	snd_soc_component_write(component, ES8323_MASTERMODE, iface);
491 	snd_soc_component_write(component, ES8323_ADC_IFACE, adciface);
492 	snd_soc_component_write(component, ES8323_DAC_IFACE, daciface);
493 
494 	return 0;
495 }
496 
497 static int es8323_pcm_startup(struct snd_pcm_substream *substream,
498 			      struct snd_soc_dai *dai)
499 {
500 	struct snd_soc_component *component = dai->component;
501 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
502 
503 	if (es8323->sysclk) {
504 		snd_pcm_hw_constraint_list(substream->runtime, 0,
505 					   SNDRV_PCM_HW_PARAM_RATE,
506 					   es8323->sysclk_constraints);
507 	}
508 
509 	return 0;
510 }
511 
512 static int es8323_pcm_hw_params(struct snd_pcm_substream *substream,
513 				struct snd_pcm_hw_params *params,
514 				struct snd_soc_dai *dai)
515 {
516 	struct snd_soc_component *component = dai->component;
517 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
518 	u16 srate = snd_soc_component_read(component, ES8323_MASTERMODE) & 0x80;
519 	u16 adciface = snd_soc_component_read(component, ES8323_ADC_IFACE) & 0xe3;
520 	u16 daciface = snd_soc_component_read(component, ES8323_DAC_IFACE) & 0xc7;
521 	int coeff;
522 
523 	coeff = get_coeff(es8323->sysclk, params_rate(params));
524 	if (coeff < 0) {
525 		coeff = get_coeff(es8323->sysclk / 2, params_rate(params));
526 		srate |= 0x40;
527 	}
528 
529 	if (coeff < 0) {
530 		dev_err(component->dev,
531 			"Unable to configure sample rate %dHz with %dHz MCLK\n",
532 			params_rate(params), es8323->sysclk);
533 		return coeff;
534 	}
535 
536 	/* bit size */
537 	switch (params_format(params)) {
538 	case SNDRV_PCM_FORMAT_S16_LE:
539 		adciface |= 0xc;
540 		daciface |= 0x18;
541 		break;
542 	case SNDRV_PCM_FORMAT_S20_3LE:
543 		adciface |= 0x4;
544 		daciface |= 0x8;
545 		break;
546 	case SNDRV_PCM_FORMAT_S24_LE:
547 		break;
548 	case SNDRV_PCM_FORMAT_S32_LE:
549 		adciface |= 0x10;
550 		daciface |= 0x20;
551 		break;
552 	}
553 
554 	snd_soc_component_write(component, ES8323_DAC_IFACE, daciface);
555 	snd_soc_component_write(component, ES8323_ADC_IFACE, adciface);
556 
557 	snd_soc_component_write(component, ES8323_MASTERMODE, srate);
558 	snd_soc_component_write(component, ES8323_ADCCONTROL5,
559 				es8323_coeff_div[coeff].sr |
560 				(es8323_coeff_div[coeff].usb) << 4);
561 	snd_soc_component_write(component, ES8323_DACCONTROL2,
562 				es8323_coeff_div[coeff].sr |
563 				(es8323_coeff_div[coeff].usb) << 4);
564 
565 	snd_soc_component_write(component, ES8323_DACPOWER, 0x3c);
566 
567 	return 0;
568 }
569 
570 static int es8323_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
571 {
572 	struct snd_soc_component *component = dai->component;
573 	u32 val = mute ? 0x6 : 0x2;
574 
575 	snd_soc_component_write(component, ES8323_DAC_MUTE, val);
576 
577 	return 0;
578 }
579 
580 static const struct snd_soc_dai_ops es8323_ops = {
581 	.startup	= es8323_pcm_startup,
582 	.hw_params	= es8323_pcm_hw_params,
583 	.set_fmt	= es8323_set_dai_fmt,
584 	.set_sysclk	= es8323_set_dai_sysclk,
585 	.mute_stream	= es8323_mute_stream,
586 };
587 
588 #define ES8323_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
589 			SNDRV_PCM_FMTBIT_S24_LE)
590 
591 static struct snd_soc_dai_driver es8323_dai = {
592 	.name = "ES8323 HiFi",
593 	.playback = {
594 		.stream_name = "Playback",
595 		.channels_min = 1,
596 		.channels_max = 2,
597 		.rates = SNDRV_PCM_RATE_8000_96000,
598 		.formats = ES8323_FORMATS,
599 	},
600 	.capture = {
601 		.stream_name = "Capture",
602 		.channels_min = 1,
603 		.channels_max = 2,
604 		.rates = SNDRV_PCM_RATE_8000_96000,
605 		.formats = ES8323_FORMATS,
606 	},
607 	.ops = &es8323_ops,
608 	.symmetric_rate = 1,
609 };
610 
611 static int es8323_probe(struct snd_soc_component *component)
612 {
613 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
614 	int ret;
615 
616 	es8323->component = component;
617 
618 	es8323->mclk = devm_clk_get_optional(component->dev, "mclk");
619 	if (IS_ERR(es8323->mclk)) {
620 		dev_err(component->dev, "unable to get mclk\n");
621 		return PTR_ERR(es8323->mclk);
622 	}
623 
624 	if (!es8323->mclk)
625 		dev_warn(component->dev, "assuming static mclk\n");
626 
627 	ret = clk_prepare_enable(es8323->mclk);
628 	if (ret) {
629 		dev_err(component->dev, "unable to enable mclk\n");
630 		return ret;
631 	}
632 
633 	snd_soc_component_write(component, ES8323_CONTROL2, 0x60);
634 	snd_soc_component_write(component, ES8323_CHIPPOWER, 0x00);
635 	snd_soc_component_write(component, ES8323_DACCONTROL17, 0xB8);
636 
637 	return 0;
638 }
639 
640 static int es8323_set_bias_level(struct snd_soc_component *component,
641 				 enum snd_soc_bias_level level)
642 {
643 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
644 	int ret;
645 
646 	switch (level) {
647 	case SND_SOC_BIAS_ON:
648 		ret = clk_prepare_enable(es8323->mclk);
649 		if (ret)
650 			return ret;
651 
652 		snd_soc_component_write(component, ES8323_CHIPPOWER, 0xf0);
653 		usleep_range(18000, 20000);
654 		snd_soc_component_write(component, ES8323_DACPOWER, 0x3c);
655 		snd_soc_component_write(component, ES8323_ANAVOLMANAG, 0x7c);
656 		snd_soc_component_write(component, ES8323_CHIPLOPOW1, 0x00);
657 		snd_soc_component_write(component, ES8323_CHIPLOPOW2, 0x00);
658 		snd_soc_component_write(component, ES8323_CHIPPOWER, 0x00);
659 		snd_soc_component_write(component, ES8323_ADCPOWER, 0x09);
660 		snd_soc_component_write(component, ES8323_ADCCONTROL14, 0x00);
661 		break;
662 	case SND_SOC_BIAS_PREPARE:
663 		break;
664 	case SND_SOC_BIAS_STANDBY:
665 		snd_soc_component_write(component, ES8323_ANAVOLMANAG, 0x7c);
666 		snd_soc_component_write(component, ES8323_CHIPLOPOW1, 0x00);
667 		snd_soc_component_write(component, ES8323_CHIPLOPOW2, 0x00);
668 		snd_soc_component_write(component, ES8323_CHIPPOWER, 0x00);
669 		snd_soc_component_write(component, ES8323_ADCPOWER, 0x59);
670 		break;
671 	case SND_SOC_BIAS_OFF:
672 		clk_disable_unprepare(es8323->mclk);
673 		snd_soc_component_write(component, ES8323_ADCPOWER, 0xff);
674 		snd_soc_component_write(component, ES8323_DACPOWER, 0xC0);
675 		snd_soc_component_write(component, ES8323_CHIPLOPOW1, 0xff);
676 		snd_soc_component_write(component, ES8323_CHIPLOPOW2, 0xff);
677 		snd_soc_component_write(component, ES8323_CHIPPOWER, 0xff);
678 		snd_soc_component_write(component, ES8323_ANAVOLMANAG, 0x7b);
679 		break;
680 	}
681 
682 	return 0;
683 }
684 
685 static void es8323_remove(struct snd_soc_component *component)
686 {
687 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
688 
689 	clk_disable_unprepare(es8323->mclk);
690 	es8323_set_bias_level(component, SND_SOC_BIAS_OFF);
691 }
692 
693 static int es8323_suspend(struct snd_soc_component *component)
694 {
695 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
696 
697 	regcache_cache_only(es8323->regmap, true);
698 	regcache_mark_dirty(es8323->regmap);
699 
700 	return 0;
701 }
702 
703 static int es8323_resume(struct snd_soc_component *component)
704 {
705 	struct es8323_priv *es8323 = snd_soc_component_get_drvdata(component);
706 
707 	regcache_cache_only(es8323->regmap, false);
708 	regcache_sync(es8323->regmap);
709 
710 	return 0;
711 }
712 
713 static const struct snd_soc_component_driver soc_component_dev_es8323 = {
714 	.probe			= es8323_probe,
715 	.remove			= es8323_remove,
716 	.suspend		= es8323_suspend,
717 	.resume			= es8323_resume,
718 	.set_bias_level		= es8323_set_bias_level,
719 	.controls		= es8323_snd_controls,
720 	.num_controls		= ARRAY_SIZE(es8323_snd_controls),
721 	.dapm_widgets		= es8323_dapm_widgets,
722 	.num_dapm_widgets	= ARRAY_SIZE(es8323_dapm_widgets),
723 	.dapm_routes		= es8323_dapm_routes,
724 	.num_dapm_routes	= ARRAY_SIZE(es8323_dapm_routes),
725 	.use_pmdown_time	= 1,
726 	.endianness		= 1,
727 };
728 
729 static const struct regmap_config es8323_regmap = {
730 	.reg_bits		= 8,
731 	.val_bits		= 8,
732 	.use_single_read	= true,
733 	.use_single_write	= true,
734 	.max_register		= 0x53,
735 	.reg_defaults		= es8323_reg_defaults,
736 	.num_reg_defaults	= ARRAY_SIZE(es8323_reg_defaults),
737 	.cache_type		= REGCACHE_MAPLE,
738 };
739 
740 static int es8323_i2c_probe(struct i2c_client *i2c_client)
741 {
742 	struct es8323_priv *es8323;
743 	struct device *dev = &i2c_client->dev;
744 
745 	es8323 = devm_kzalloc(dev, sizeof(*es8323), GFP_KERNEL);
746 	if (!es8323)
747 		return -ENOMEM;
748 
749 	i2c_set_clientdata(i2c_client, es8323);
750 
751 	es8323->regmap = devm_regmap_init_i2c(i2c_client, &es8323_regmap);
752 	if (IS_ERR(es8323->regmap))
753 		return PTR_ERR(es8323->regmap);
754 
755 	return devm_snd_soc_register_component(dev,
756 					       &soc_component_dev_es8323,
757 					       &es8323_dai, 1);
758 }
759 
760 static const struct i2c_device_id es8323_i2c_id[] = {
761 	{ "es8323", 0 },
762 	{ }
763 };
764 MODULE_DEVICE_TABLE(i2c, es8323_i2c_id);
765 
766 static const struct acpi_device_id es8323_acpi_match[] = {
767 	{ "ESSX8323", 0 },
768 	{ }
769 };
770 MODULE_DEVICE_TABLE(acpi, es8323_acpi_match);
771 
772 static const struct of_device_id es8323_of_match[] = {
773 	{ .compatible = "everest,es8323" },
774 	{ }
775 };
776 MODULE_DEVICE_TABLE(of, es8323_of_match);
777 
778 static struct i2c_driver es8323_i2c_driver = {
779 	.driver = {
780 		.name = "ES8323",
781 		.acpi_match_table = es8323_acpi_match,
782 		.of_match_table = es8323_of_match,
783 	},
784 	.probe = es8323_i2c_probe,
785 	.id_table = es8323_i2c_id,
786 };
787 module_i2c_driver(es8323_i2c_driver);
788 
789 MODULE_DESCRIPTION("Everest Semi ES8323 ALSA SoC Codec Driver");
790 MODULE_AUTHOR("Mark Brown <broonie@kernel.org>");
791 MODULE_AUTHOR("Binbin Zhou <zhoubinbin@loongson.cn>");
792 MODULE_LICENSE("GPL");
793