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 
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(&params, 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 
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 
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 
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 
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 
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 
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 
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