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
 26struct rt_amp_platform_data {
 27	const unsigned char *bq_params;
 28	const unsigned int bq_params_cnt;
 29};
 30
 31static 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
 36static 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
 41static 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
104static 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
134static const struct snd_kcontrol_new rt_amp_controls[] = {
135	SOC_DAPM_PIN_SWITCH("Speaker"),
136};
137
138static 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 */
148static 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
155static 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
162static 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
169static 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
188static 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
224static 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
240static 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
251static 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 = snd_soc_substream_to_rtd(substream);
255	struct snd_soc_card *card = rtd->card;
256	struct snd_soc_dai *codec_dai = snd_soc_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 */
284struct snd_soc_ops sof_sdw_rt1308_i2s_ops = {
285	.hw_params = rt1308_i2s_hw_params,
286};
287
288int 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
305int 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}