1// SPDX-License-Identifier: GPL-2.0-only
2//
3// aw87390.c -- AW87390 ALSA SoC Audio driver
4//
5// Copyright (c) 2023 awinic Technology CO., LTD
6//
7// Author: Weidong Wang <wangweidong.a@awinic.com>
8//
9
10#include <linux/i2c.h>
11#include <linux/firmware.h>
12#include <linux/regmap.h>
13#include <sound/soc.h>
14#include "aw87390.h"
15#include "aw88395/aw88395_data_type.h"
16#include "aw88395/aw88395_device.h"
17
18static const struct regmap_config aw87390_remap_config = {
19 .val_bits = 8,
20 .reg_bits = 8,
21 .max_register = AW87390_REG_MAX,
22 .reg_format_endian = REGMAP_ENDIAN_LITTLE,
23 .val_format_endian = REGMAP_ENDIAN_BIG,
24};
25
26static int aw87390_dev_reg_update(struct aw_device *aw_dev,
27 unsigned char *data, unsigned int len)
28{
29 int i, ret;
30
31 if (!data) {
32 dev_err(aw_dev->dev, "data is NULL\n");
33 return -EINVAL;
34 }
35
36 for (i = 0; i < len-1; i += 2) {
37 if (data[i] == AW87390_DELAY_REG_ADDR) {
38 usleep_range(min: data[i + 1] * AW87390_REG_DELAY_TIME,
39 max: data[i + 1] * AW87390_REG_DELAY_TIME + 10);
40 continue;
41 }
42 ret = regmap_write(map: aw_dev->regmap, reg: data[i], val: data[i + 1]);
43 if (ret)
44 return ret;
45 }
46
47 return 0;
48}
49
50static int aw87390_dev_get_prof_name(struct aw_device *aw_dev, int index, char **prof_name)
51{
52 struct aw_prof_info *prof_info = &aw_dev->prof_info;
53 struct aw_prof_desc *prof_desc;
54
55 if ((index >= aw_dev->prof_info.count) || (index < 0)) {
56 dev_err(aw_dev->dev, "index[%d] overflow count[%d]\n",
57 index, aw_dev->prof_info.count);
58 return -EINVAL;
59 }
60
61 prof_desc = &aw_dev->prof_info.prof_desc[index];
62
63 *prof_name = prof_info->prof_name_list[prof_desc->id];
64
65 return 0;
66}
67
68static int aw87390_dev_get_prof_data(struct aw_device *aw_dev, int index,
69 struct aw_prof_desc **prof_desc)
70{
71 if ((index >= aw_dev->prof_info.count) || (index < 0)) {
72 dev_err(aw_dev->dev, "%s: index[%d] overflow count[%d]\n",
73 __func__, index, aw_dev->prof_info.count);
74 return -EINVAL;
75 }
76
77 *prof_desc = &aw_dev->prof_info.prof_desc[index];
78
79 return 0;
80}
81
82static int aw87390_dev_fw_update(struct aw_device *aw_dev)
83{
84 struct aw_prof_desc *prof_index_desc;
85 struct aw_sec_data_desc *sec_desc;
86 char *prof_name;
87 int ret;
88
89 ret = aw87390_dev_get_prof_name(aw_dev, index: aw_dev->prof_index, prof_name: &prof_name);
90 if (ret) {
91 dev_err(aw_dev->dev, "get prof name failed\n");
92 return -EINVAL;
93 }
94
95 dev_dbg(aw_dev->dev, "start update %s", prof_name);
96
97 ret = aw87390_dev_get_prof_data(aw_dev, index: aw_dev->prof_index, prof_desc: &prof_index_desc);
98 if (ret) {
99 dev_err(aw_dev->dev, "aw87390_dev_get_prof_data failed\n");
100 return ret;
101 }
102
103 /* update reg */
104 sec_desc = prof_index_desc->sec_desc;
105 ret = aw87390_dev_reg_update(aw_dev, data: sec_desc[AW88395_DATA_TYPE_REG].data,
106 len: sec_desc[AW88395_DATA_TYPE_REG].len);
107 if (ret) {
108 dev_err(aw_dev->dev, "update reg failed\n");
109 return ret;
110 }
111
112 aw_dev->prof_cur = aw_dev->prof_index;
113
114 return 0;
115}
116
117static int aw87390_power_off(struct aw_device *aw_dev)
118{
119 int ret;
120
121 if (aw_dev->status == AW87390_DEV_PW_OFF) {
122 dev_dbg(aw_dev->dev, "already power off\n");
123 return 0;
124 }
125
126 ret = regmap_write(map: aw_dev->regmap, AW87390_SYSCTRL_REG, AW87390_POWER_DOWN_VALUE);
127 if (ret)
128 return ret;
129 aw_dev->status = AW87390_DEV_PW_OFF;
130
131 return 0;
132}
133
134static int aw87390_power_on(struct aw_device *aw_dev)
135{
136 int ret;
137
138 if (aw_dev->status == AW87390_DEV_PW_ON) {
139 dev_dbg(aw_dev->dev, "already power on\n");
140 return 0;
141 }
142
143 if (!aw_dev->fw_status) {
144 dev_err(aw_dev->dev, "fw not load\n");
145 return -EINVAL;
146 }
147
148 ret = regmap_write(map: aw_dev->regmap, AW87390_SYSCTRL_REG, AW87390_POWER_DOWN_VALUE);
149 if (ret)
150 return ret;
151
152 ret = aw87390_dev_fw_update(aw_dev);
153 if (ret) {
154 dev_err(aw_dev->dev, "%s load profile failed\n", __func__);
155 return ret;
156 }
157 aw_dev->status = AW87390_DEV_PW_ON;
158
159 return 0;
160}
161
162static int aw87390_dev_set_profile_index(struct aw_device *aw_dev, int index)
163{
164 if ((index >= aw_dev->prof_info.count) || (index < 0))
165 return -EINVAL;
166
167 if (aw_dev->prof_index == index)
168 return -EPERM;
169
170 aw_dev->prof_index = index;
171
172 return 0;
173}
174
175static int aw87390_profile_info(struct snd_kcontrol *kcontrol,
176 struct snd_ctl_elem_info *uinfo)
177{
178 struct snd_soc_component *codec = snd_kcontrol_chip(kcontrol);
179 struct aw87390 *aw87390 = snd_soc_component_get_drvdata(c: codec);
180 char *prof_name;
181 int count, ret;
182
183 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
184 uinfo->count = 1;
185
186 count = aw87390->aw_pa->prof_info.count;
187 if (count <= 0) {
188 uinfo->value.enumerated.items = 0;
189 return 0;
190 }
191
192 uinfo->value.enumerated.items = count;
193
194 if (uinfo->value.enumerated.item >= count)
195 uinfo->value.enumerated.item = count - 1;
196
197 count = uinfo->value.enumerated.item;
198
199 ret = aw87390_dev_get_prof_name(aw_dev: aw87390->aw_pa, index: count, prof_name: &prof_name);
200 if (ret) {
201 strscpy(uinfo->value.enumerated.name, "null");
202 return 0;
203 }
204
205 strscpy(uinfo->value.enumerated.name, prof_name);
206
207 return 0;
208}
209
210static int aw87390_profile_get(struct snd_kcontrol *kcontrol,
211 struct snd_ctl_elem_value *ucontrol)
212{
213 struct snd_soc_component *codec = snd_kcontrol_chip(kcontrol);
214 struct aw87390 *aw87390 = snd_soc_component_get_drvdata(c: codec);
215
216 ucontrol->value.integer.value[0] = aw87390->aw_pa->prof_index;
217
218 return 0;
219}
220
221static int aw87390_profile_set(struct snd_kcontrol *kcontrol,
222 struct snd_ctl_elem_value *ucontrol)
223{
224 struct snd_soc_component *codec = snd_kcontrol_chip(kcontrol);
225 struct aw87390 *aw87390 = snd_soc_component_get_drvdata(c: codec);
226 int ret;
227
228 mutex_lock(&aw87390->lock);
229 ret = aw87390_dev_set_profile_index(aw_dev: aw87390->aw_pa, index: ucontrol->value.integer.value[0]);
230 if (ret) {
231 dev_dbg(codec->dev, "profile index does not change\n");
232 mutex_unlock(lock: &aw87390->lock);
233 return 0;
234 }
235
236 if (aw87390->aw_pa->status == AW87390_DEV_PW_ON) {
237 aw87390_power_off(aw_dev: aw87390->aw_pa);
238 aw87390_power_on(aw_dev: aw87390->aw_pa);
239 }
240
241 mutex_unlock(lock: &aw87390->lock);
242
243 return 1;
244}
245
246static const struct snd_kcontrol_new aw87390_controls[] = {
247 AW87390_PROFILE_EXT("AW87390 Profile Set", aw87390_profile_info,
248 aw87390_profile_get, aw87390_profile_set),
249};
250
251static int aw87390_request_firmware_file(struct aw87390 *aw87390)
252{
253 const struct firmware *cont = NULL;
254 int ret;
255
256 aw87390->aw_pa->fw_status = AW87390_DEV_FW_FAILED;
257
258 ret = request_firmware(fw: &cont, AW87390_ACF_FILE, device: aw87390->aw_pa->dev);
259 if (ret)
260 return dev_err_probe(dev: aw87390->aw_pa->dev, err: ret,
261 fmt: "load [%s] failed!\n", AW87390_ACF_FILE);
262
263 dev_dbg(aw87390->aw_pa->dev, "loaded %s - size: %zu\n",
264 AW87390_ACF_FILE, cont ? cont->size : 0);
265
266 aw87390->aw_cfg = devm_kzalloc(dev: aw87390->aw_pa->dev,
267 struct_size(aw87390->aw_cfg, data, cont->size), GFP_KERNEL);
268 if (!aw87390->aw_cfg) {
269 release_firmware(fw: cont);
270 return -ENOMEM;
271 }
272
273 aw87390->aw_cfg->len = cont->size;
274 memcpy(aw87390->aw_cfg->data, cont->data, cont->size);
275 release_firmware(fw: cont);
276
277 ret = aw88395_dev_load_acf_check(aw_dev: aw87390->aw_pa, aw_cfg: aw87390->aw_cfg);
278 if (ret) {
279 dev_err(aw87390->aw_pa->dev, "load [%s] failed!\n", AW87390_ACF_FILE);
280 return ret;
281 }
282
283 mutex_lock(&aw87390->lock);
284
285 ret = aw88395_dev_cfg_load(aw_dev: aw87390->aw_pa, aw_cfg: aw87390->aw_cfg);
286 if (ret)
287 dev_err(aw87390->aw_pa->dev, "aw_dev acf parse failed\n");
288
289 mutex_unlock(lock: &aw87390->lock);
290
291 return ret;
292}
293
294static int aw87390_drv_event(struct snd_soc_dapm_widget *w,
295 struct snd_kcontrol *kcontrol, int event)
296{
297 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm: w->dapm);
298 struct aw87390 *aw87390 = snd_soc_component_get_drvdata(c: component);
299 struct aw_device *aw_dev = aw87390->aw_pa;
300 int ret;
301
302 switch (event) {
303 case SND_SOC_DAPM_PRE_PMU:
304 ret = aw87390_power_on(aw_dev);
305 break;
306 case SND_SOC_DAPM_POST_PMD:
307 ret = aw87390_power_off(aw_dev);
308 break;
309 default:
310 dev_err(aw_dev->dev, "%s: invalid event %d\n", __func__, event);
311 ret = -EINVAL;
312 }
313
314 return ret;
315}
316
317static const struct snd_soc_dapm_widget aw87390_dapm_widgets[] = {
318 SND_SOC_DAPM_INPUT("IN"),
319 SND_SOC_DAPM_PGA_E("SPK PA", SND_SOC_NOPM, 0, 0, NULL, 0, aw87390_drv_event,
320 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
321 SND_SOC_DAPM_OUTPUT("OUT"),
322};
323
324static const struct snd_soc_dapm_route aw87390_dapm_routes[] = {
325 { "SPK PA", NULL, "IN" },
326 { "OUT", NULL, "SPK PA" },
327};
328
329static int aw87390_codec_probe(struct snd_soc_component *component)
330{
331 struct aw87390 *aw87390 = snd_soc_component_get_drvdata(c: component);
332 int ret;
333
334 ret = aw87390_request_firmware_file(aw87390);
335 if (ret)
336 return dev_err_probe(dev: aw87390->aw_pa->dev, err: ret,
337 fmt: "aw87390_request_firmware_file failed\n");
338
339 return 0;
340}
341
342static const struct snd_soc_component_driver soc_codec_dev_aw87390 = {
343 .probe = aw87390_codec_probe,
344 .dapm_widgets = aw87390_dapm_widgets,
345 .num_dapm_widgets = ARRAY_SIZE(aw87390_dapm_widgets),
346 .dapm_routes = aw87390_dapm_routes,
347 .num_dapm_routes = ARRAY_SIZE(aw87390_dapm_routes),
348 .controls = aw87390_controls,
349 .num_controls = ARRAY_SIZE(aw87390_controls),
350};
351
352static void aw87390_parse_channel_dt(struct aw87390 *aw87390)
353{
354 struct aw_device *aw_dev = aw87390->aw_pa;
355 struct device_node *np = aw_dev->dev->of_node;
356 u32 channel_value = AW87390_DEV_DEFAULT_CH;
357
358 of_property_read_u32(np, propname: "awinic,audio-channel", out_value: &channel_value);
359
360 aw_dev->channel = channel_value;
361}
362
363static int aw87390_init(struct aw87390 *aw87390, struct i2c_client *i2c, struct regmap *regmap)
364{
365 struct aw_device *aw_dev;
366 unsigned int chip_id;
367 int ret;
368
369 /* read chip id */
370 ret = regmap_read(map: regmap, AW87390_ID_REG, val: &chip_id);
371 if (ret) {
372 dev_err(&i2c->dev, "%s read chipid error. ret = %d\n", __func__, ret);
373 return ret;
374 }
375
376 if (chip_id != AW87390_CHIP_ID) {
377 dev_err(&i2c->dev, "unsupported device\n");
378 return -ENXIO;
379 }
380
381 dev_dbg(&i2c->dev, "chip id = 0x%x\n", chip_id);
382
383 aw_dev = devm_kzalloc(dev: &i2c->dev, size: sizeof(*aw_dev), GFP_KERNEL);
384 if (!aw_dev)
385 return -ENOMEM;
386
387 aw87390->aw_pa = aw_dev;
388 aw_dev->i2c = i2c;
389 aw_dev->regmap = regmap;
390 aw_dev->dev = &i2c->dev;
391 aw_dev->chip_id = AW87390_CHIP_ID;
392 aw_dev->acf = NULL;
393 aw_dev->prof_info.prof_desc = NULL;
394 aw_dev->prof_info.count = 0;
395 aw_dev->prof_info.prof_type = AW88395_DEV_NONE_TYPE_ID;
396 aw_dev->channel = AW87390_DEV_DEFAULT_CH;
397 aw_dev->fw_status = AW87390_DEV_FW_FAILED;
398 aw_dev->prof_index = AW87390_INIT_PROFILE;
399 aw_dev->status = AW87390_DEV_PW_OFF;
400
401 aw87390_parse_channel_dt(aw87390);
402
403 return 0;
404}
405
406static int aw87390_i2c_probe(struct i2c_client *i2c)
407{
408 struct aw87390 *aw87390;
409 int ret;
410
411 ret = i2c_check_functionality(adap: i2c->adapter, I2C_FUNC_I2C);
412 if (!ret)
413 return dev_err_probe(dev: &i2c->dev, err: -ENXIO, fmt: "check_functionality failed\n");
414
415 aw87390 = devm_kzalloc(dev: &i2c->dev, size: sizeof(*aw87390), GFP_KERNEL);
416 if (!aw87390)
417 return -ENOMEM;
418
419 mutex_init(&aw87390->lock);
420
421 i2c_set_clientdata(client: i2c, data: aw87390);
422
423 aw87390->regmap = devm_regmap_init_i2c(i2c, &aw87390_remap_config);
424 if (IS_ERR(ptr: aw87390->regmap))
425 return dev_err_probe(dev: &i2c->dev, err: PTR_ERR(ptr: aw87390->regmap),
426 fmt: "failed to init regmap\n");
427
428 /* aw pa init */
429 ret = aw87390_init(aw87390, i2c, regmap: aw87390->regmap);
430 if (ret)
431 return ret;
432
433 ret = regmap_write(map: aw87390->regmap, AW87390_ID_REG, AW87390_SOFT_RESET_VALUE);
434 if (ret)
435 return ret;
436
437 ret = devm_snd_soc_register_component(dev: &i2c->dev,
438 component_driver: &soc_codec_dev_aw87390, NULL, num_dai: 0);
439 if (ret)
440 dev_err(&i2c->dev, "failed to register aw87390: %d\n", ret);
441
442 return ret;
443}
444
445static const struct i2c_device_id aw87390_i2c_id[] = {
446 { AW87390_I2C_NAME },
447 { }
448};
449MODULE_DEVICE_TABLE(i2c, aw87390_i2c_id);
450
451static struct i2c_driver aw87390_i2c_driver = {
452 .driver = {
453 .name = AW87390_I2C_NAME,
454 },
455 .probe = aw87390_i2c_probe,
456 .id_table = aw87390_i2c_id,
457};
458module_i2c_driver(aw87390_i2c_driver);
459
460MODULE_DESCRIPTION("ASoC AW87390 PA Driver");
461MODULE_LICENSE("GPL v2");
462

source code of linux/sound/soc/codecs/aw87390.c