1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2022 Intel Corporation
3
4 /*
5 * sof_sdw_rt_amp - Helpers to handle RT1308/RT1316/RT1318 from generic machine driver
6 */
7
8 #include <linux/device.h>
9 #include <linux/errno.h>
10 #include <sound/control.h>
11 #include <sound/soc.h>
12 #include <sound/soc-acpi.h>
13 #include <sound/soc-dapm.h>
14 #include <linux/soundwire/sdw.h>
15 #include <linux/soundwire/sdw_type.h>
16 #include <linux/dmi.h>
17 #include "sof_sdw_common.h"
18 #include "sof_sdw_amp_coeff_tables.h"
19 #include "../../codecs/rt1308.h"
20
21 #define CODEC_NAME_SIZE 7
22
23 /* choose a larger value to resolve compatibility issues */
24 #define RT_AMP_MAX_BQ_REG RT1316_MAX_BQ_REG
25
26 struct rt_amp_platform_data {
27 const unsigned char *bq_params;
28 const unsigned int bq_params_cnt;
29 };
30
31 static const struct rt_amp_platform_data dell_0a5d_platform_data = {
32 .bq_params = dell_0a5d_bq_params,
33 .bq_params_cnt = ARRAY_SIZE(dell_0a5d_bq_params),
34 };
35
36 static const struct rt_amp_platform_data dell_0b00_platform_data = {
37 .bq_params = dell_0b00_bq_params,
38 .bq_params_cnt = ARRAY_SIZE(dell_0b00_bq_params),
39 };
40
41 static const struct dmi_system_id dmi_platform_data[] = {
42 /* CometLake devices */
43 {
44 .matches = {
45 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
46 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990")
47 },
48 .driver_data = (void *)&dell_0a5d_platform_data,
49 },
50 {
51 .matches = {
52 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
53 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F")
54 },
55 .driver_data = (void *)&dell_0a5d_platform_data,
56 },
57 /* TigerLake devices */
58 {
59 .matches = {
60 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
61 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A5D")
62 },
63 .driver_data = (void *)&dell_0a5d_platform_data,
64 },
65 {
66 .matches = {
67 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
68 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A5E")
69 },
70 .driver_data = (void *)&dell_0a5d_platform_data,
71 },
72 /* AlderLake devices */
73 {
74 .matches = {
75 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
76 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B00")
77 },
78 .driver_data = (void *)&dell_0b00_platform_data,
79 },
80 {
81 .matches = {
82 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
83 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B01")
84 },
85 .driver_data = (void *)&dell_0b00_platform_data,
86 },
87 {
88 .matches = {
89 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
90 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFF")
91 },
92 .driver_data = (void *)&dell_0b00_platform_data,
93 },
94 {
95 .matches = {
96 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
97 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFE")
98 },
99 .driver_data = (void *)&dell_0b00_platform_data,
100 },
101 {},
102 };
103
rt_amp_add_device_props(struct device * sdw_dev)104 static int rt_amp_add_device_props(struct device *sdw_dev)
105 {
106 struct property_entry props[3] = {};
107 struct fwnode_handle *fwnode;
108 const struct dmi_system_id *dmi_data;
109 const struct rt_amp_platform_data *pdata;
110 unsigned char params[RT_AMP_MAX_BQ_REG];
111 int ret;
112
113 dmi_data = dmi_first_match(dmi_platform_data);
114 if (!dmi_data)
115 return 0;
116
117 pdata = dmi_data->driver_data;
118 memcpy(¶ms, pdata->bq_params, sizeof(unsigned char) * pdata->bq_params_cnt);
119
120 props[0] = PROPERTY_ENTRY_U8_ARRAY("realtek,bq-params", params);
121 props[1] = PROPERTY_ENTRY_U32("realtek,bq-params-cnt", pdata->bq_params_cnt);
122
123 fwnode = fwnode_create_software_node(props, NULL);
124 if (IS_ERR(fwnode))
125 return PTR_ERR(fwnode);
126
127 ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
128
129 fwnode_handle_put(fwnode);
130
131 return ret;
132 }
133
134 static const struct snd_kcontrol_new rt_amp_controls[] = {
135 SOC_DAPM_PIN_SWITCH("Speaker"),
136 };
137
138 static const struct snd_soc_dapm_widget rt_amp_widgets[] = {
139 SND_SOC_DAPM_SPK("Speaker", NULL),
140 };
141
142 /*
143 * dapm routes for rt1308/rt1316/rt1318 will be registered dynamically
144 * according to the number of rt1308/rt1316/rt1318 used. The first two
145 * entries will be registered for one codec case, and the last two entries
146 * are also registered if two 1308s/1316s/1318s are used.
147 */
148 static const struct snd_soc_dapm_route rt1308_map[] = {
149 { "Speaker", NULL, "rt1308-1 SPOL" },
150 { "Speaker", NULL, "rt1308-1 SPOR" },
151 { "Speaker", NULL, "rt1308-2 SPOL" },
152 { "Speaker", NULL, "rt1308-2 SPOR" },
153 };
154
155 static const struct snd_soc_dapm_route rt1316_map[] = {
156 { "Speaker", NULL, "rt1316-1 SPOL" },
157 { "Speaker", NULL, "rt1316-1 SPOR" },
158 { "Speaker", NULL, "rt1316-2 SPOL" },
159 { "Speaker", NULL, "rt1316-2 SPOR" },
160 };
161
162 static const struct snd_soc_dapm_route rt1318_map[] = {
163 { "Speaker", NULL, "rt1318-1 SPOL" },
164 { "Speaker", NULL, "rt1318-1 SPOR" },
165 { "Speaker", NULL, "rt1318-2 SPOL" },
166 { "Speaker", NULL, "rt1318-2 SPOR" },
167 };
168
get_codec_name_and_route(struct snd_soc_pcm_runtime * rtd,char * codec_name)169 static const struct snd_soc_dapm_route *get_codec_name_and_route(struct snd_soc_pcm_runtime *rtd,
170 char *codec_name)
171 {
172 const char *dai_name;
173
174 dai_name = rtd->dai_link->codecs->dai_name;
175
176 /* get the codec name */
177 snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
178
179 /* choose the right codec's map */
180 if (strcmp(codec_name, "rt1308") == 0)
181 return rt1308_map;
182 else if (strcmp(codec_name, "rt1316") == 0)
183 return rt1316_map;
184 else
185 return rt1318_map;
186 }
187
first_spk_init(struct snd_soc_pcm_runtime * rtd)188 static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
189 {
190 struct snd_soc_card *card = rtd->card;
191 const struct snd_soc_dapm_route *rt_amp_map;
192 char codec_name[CODEC_NAME_SIZE];
193 int ret;
194
195 rt_amp_map = get_codec_name_and_route(rtd, codec_name);
196
197 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
198 "%s spk:%s",
199 card->components, codec_name);
200 if (!card->components)
201 return -ENOMEM;
202
203 ret = snd_soc_add_card_controls(card, rt_amp_controls,
204 ARRAY_SIZE(rt_amp_controls));
205 if (ret) {
206 dev_err(card->dev, "%s controls addition failed: %d\n", codec_name, ret);
207 return ret;
208 }
209
210 ret = snd_soc_dapm_new_controls(&card->dapm, rt_amp_widgets,
211 ARRAY_SIZE(rt_amp_widgets));
212 if (ret) {
213 dev_err(card->dev, "%s widgets addition failed: %d\n", codec_name, ret);
214 return ret;
215 }
216
217 ret = snd_soc_dapm_add_routes(&card->dapm, rt_amp_map, 2);
218 if (ret)
219 dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
220
221 return ret;
222 }
223
second_spk_init(struct snd_soc_pcm_runtime * rtd)224 static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
225 {
226 struct snd_soc_card *card = rtd->card;
227 const struct snd_soc_dapm_route *rt_amp_map;
228 char codec_name[CODEC_NAME_SIZE];
229 int ret;
230
231 rt_amp_map = get_codec_name_and_route(rtd, codec_name);
232
233 ret = snd_soc_dapm_add_routes(&card->dapm, rt_amp_map + 2, 2);
234 if (ret)
235 dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
236
237 return ret;
238 }
239
all_spk_init(struct snd_soc_pcm_runtime * rtd)240 static int all_spk_init(struct snd_soc_pcm_runtime *rtd)
241 {
242 int ret;
243
244 ret = first_spk_init(rtd);
245 if (ret)
246 return ret;
247
248 return second_spk_init(rtd);
249 }
250
rt1308_i2s_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)251 static int rt1308_i2s_hw_params(struct snd_pcm_substream *substream,
252 struct snd_pcm_hw_params *params)
253 {
254 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
255 struct snd_soc_card *card = rtd->card;
256 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
257 int clk_id, clk_freq, pll_out;
258 int err;
259
260 clk_id = RT1308_PLL_S_MCLK;
261 clk_freq = 38400000;
262
263 pll_out = params_rate(params) * 512;
264
265 /* Set rt1308 pll */
266 err = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
267 if (err < 0) {
268 dev_err(card->dev, "Failed to set RT1308 PLL: %d\n", err);
269 return err;
270 }
271
272 /* Set rt1308 sysclk */
273 err = snd_soc_dai_set_sysclk(codec_dai, RT1308_FS_SYS_S_PLL, pll_out,
274 SND_SOC_CLOCK_IN);
275 if (err < 0) {
276 dev_err(card->dev, "Failed to set RT1308 SYSCLK: %d\n", err);
277 return err;
278 }
279
280 return 0;
281 }
282
283 /* machine stream operations */
284 struct snd_soc_ops sof_sdw_rt1308_i2s_ops = {
285 .hw_params = rt1308_i2s_hw_params,
286 };
287
sof_sdw_rt_amp_exit(struct snd_soc_card * card,struct snd_soc_dai_link * dai_link)288 int sof_sdw_rt_amp_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
289 {
290 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
291
292 if (ctx->amp_dev1) {
293 device_remove_software_node(ctx->amp_dev1);
294 put_device(ctx->amp_dev1);
295 }
296
297 if (ctx->amp_dev2) {
298 device_remove_software_node(ctx->amp_dev2);
299 put_device(ctx->amp_dev2);
300 }
301
302 return 0;
303 }
304
sof_sdw_rt_amp_init(struct snd_soc_card * card,const struct snd_soc_acpi_link_adr * link,struct snd_soc_dai_link * dai_links,struct sof_sdw_codec_info * info,bool playback)305 int sof_sdw_rt_amp_init(struct snd_soc_card *card,
306 const struct snd_soc_acpi_link_adr *link,
307 struct snd_soc_dai_link *dai_links,
308 struct sof_sdw_codec_info *info,
309 bool playback)
310 {
311 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
312 struct device *sdw_dev1, *sdw_dev2;
313 int ret;
314
315 /* Count amp number and do init on playback link only. */
316 if (!playback)
317 return 0;
318
319 info->amp_num++;
320 if (info->amp_num == 1)
321 dai_links->init = first_spk_init;
322
323 if (info->amp_num == 2) {
324 sdw_dev1 = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
325 if (!sdw_dev1)
326 return -EPROBE_DEFER;
327
328 ret = rt_amp_add_device_props(sdw_dev1);
329 if (ret < 0) {
330 put_device(sdw_dev1);
331 return ret;
332 }
333 ctx->amp_dev1 = sdw_dev1;
334
335 sdw_dev2 = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[1].name);
336 if (!sdw_dev2)
337 return -EPROBE_DEFER;
338
339 ret = rt_amp_add_device_props(sdw_dev2);
340 if (ret < 0) {
341 put_device(sdw_dev2);
342 return ret;
343 }
344 ctx->amp_dev2 = sdw_dev2;
345
346 /*
347 * if two amps are in one dai link, the init function
348 * in this dai link will be first set for the first speaker,
349 * and it should be reset to initialize all speakers when
350 * the second speaker is found.
351 */
352 if (dai_links->init)
353 dai_links->init = all_spk_init;
354 else
355 dai_links->init = second_spk_init;
356 }
357
358 return 0;
359 }
360