1// SPDX-License-Identifier: GPL-2.0-only
  2// Copyright(c) 2021 Intel Corporation.
  3
  4/*
  5 * Intel SOF Machine Driver with Cirrus Logic CS42L42 Codec
  6 * and speaker codec MAX98357A
  7 */
  8#include <linux/i2c.h>
  9#include <linux/input.h>
 10#include <linux/module.h>
 11#include <linux/platform_device.h>
 12#include <linux/regulator/consumer.h>
 13#include <linux/dmi.h>
 14#include <sound/core.h>
 15#include <sound/jack.h>
 16#include <sound/pcm.h>
 17#include <sound/pcm_params.h>
 18#include <sound/soc.h>
 19#include <sound/sof.h>
 20#include <sound/soc-acpi.h>
 21#include <dt-bindings/sound/cs42l42.h>
 22#include "../common/soc-intel-quirks.h"
 23#include "sof_board_helpers.h"
 24#include "sof_maxim_common.h"
 25
 26static struct snd_soc_jack_pin jack_pins[] = {
 27	{
 28		.pin    = "Headphone Jack",
 29		.mask   = SND_JACK_HEADPHONE,
 30	},
 31	{
 32		.pin    = "Headset Mic",
 33		.mask   = SND_JACK_MICROPHONE,
 34	},
 35};
 36
 37/* Default: SSP2 */
 38static unsigned long sof_cs42l42_quirk = SOF_SSP_PORT_CODEC(2);
 39
 40static int sof_cs42l42_init(struct snd_soc_pcm_runtime *rtd)
 41{
 42	struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 43	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 44	struct snd_soc_jack *jack = &ctx->headset_jack;
 45	int ret;
 46
 47	/*
 48	 * Headset buttons map to the google Reference headset.
 49	 * These can be configured by userspace.
 50	 */
 51	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
 52					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
 53					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
 54					 SND_JACK_BTN_3,
 55					 jack,
 56					 jack_pins,
 57					 ARRAY_SIZE(jack_pins));
 58	if (ret) {
 59		dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
 60		return ret;
 61	}
 62
 63	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 64	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
 65	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 66	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
 67
 68	ret = snd_soc_component_set_jack(component, jack, NULL);
 69	if (ret) {
 70		dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
 71		return ret;
 72	}
 73
 74	return ret;
 75};
 76
 77static void sof_cs42l42_exit(struct snd_soc_pcm_runtime *rtd)
 78{
 79	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 80
 81	snd_soc_component_set_jack(component, NULL, NULL);
 82}
 83
 84static int sof_cs42l42_hw_params(struct snd_pcm_substream *substream,
 85				 struct snd_pcm_hw_params *params)
 86{
 87	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 88	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 89	int clk_freq, ret;
 90
 91	clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */
 92
 93	if (clk_freq <= 0) {
 94		dev_err(rtd->dev, "get bclk freq failed: %d\n", clk_freq);
 95		return -EINVAL;
 96	}
 97
 98	/* Configure sysclk for codec */
 99	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
100				     clk_freq, SND_SOC_CLOCK_IN);
101	if (ret < 0)
102		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
103
104	return ret;
105}
106
107static const struct snd_soc_ops sof_cs42l42_ops = {
108	.hw_params = sof_cs42l42_hw_params,
109};
110
111static int sof_card_late_probe(struct snd_soc_card *card)
112{
113	return sof_intel_board_card_late_probe(card);
114}
115
116static const struct snd_kcontrol_new sof_controls[] = {
117	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
118	SOC_DAPM_PIN_SWITCH("Headset Mic"),
119};
120
121static const struct snd_soc_dapm_widget sof_widgets[] = {
122	SND_SOC_DAPM_HP("Headphone Jack", NULL),
123	SND_SOC_DAPM_MIC("Headset Mic", NULL),
124};
125
126static const struct snd_soc_dapm_route sof_map[] = {
127	/* HP jack connectors - unknown if we have jack detection */
128	{"Headphone Jack", NULL, "HP"},
129
130	/* other jacks */
131	{"HS", NULL, "Headset Mic"},
132};
133
134/* sof audio machine driver for cs42l42 codec */
135static struct snd_soc_card sof_audio_card_cs42l42 = {
136	.name = "cs42l42", /* the sof- prefix is added by the core */
137	.owner = THIS_MODULE,
138	.controls = sof_controls,
139	.num_controls = ARRAY_SIZE(sof_controls),
140	.dapm_widgets = sof_widgets,
141	.num_dapm_widgets = ARRAY_SIZE(sof_widgets),
142	.dapm_routes = sof_map,
143	.num_dapm_routes = ARRAY_SIZE(sof_map),
144	.fully_routed = true,
145	.late_probe = sof_card_late_probe,
146};
147
148static struct snd_soc_dai_link_component cs42l42_component[] = {
149	{
150		.name = "i2c-10134242:00",
151		.dai_name = "cs42l42",
152	}
153};
154
155static int
156sof_card_dai_links_create(struct device *dev, struct snd_soc_card *card,
157			  struct sof_card_private *ctx)
158{
159	int ret;
160
161	ret = sof_intel_board_set_dai_link(dev, card, ctx);
162	if (ret)
163		return ret;
164
165	if (!ctx->codec_link) {
166		dev_err(dev, "codec link not available");
167		return -EINVAL;
168	}
169
170	/* codec-specific fields for headphone codec */
171	ctx->codec_link->codecs = cs42l42_component;
172	ctx->codec_link->num_codecs = ARRAY_SIZE(cs42l42_component);
173	ctx->codec_link->init = sof_cs42l42_init;
174	ctx->codec_link->exit = sof_cs42l42_exit;
175	ctx->codec_link->ops = &sof_cs42l42_ops;
176
177	if (ctx->amp_type == CODEC_NONE)
178		return 0;
179
180	if (!ctx->amp_link) {
181		dev_err(dev, "amp link not available");
182		return -EINVAL;
183	}
184
185	/* codec-specific fields for speaker amplifier */
186	switch (ctx->amp_type) {
187	case CODEC_MAX98357A:
188		max_98357a_dai_link(ctx->amp_link);
189		break;
190	case CODEC_MAX98360A:
191		max_98360a_dai_link(ctx->amp_link);
192		break;
193	default:
194		dev_err(dev, "invalid amp type %d\n", ctx->amp_type);
195		return -EINVAL;
196	}
197
198	return 0;
199}
200
201#define GLK_LINK_ORDER	SOF_LINK_ORDER(SOF_LINK_AMP,         \
202					SOF_LINK_CODEC,      \
203					SOF_LINK_DMIC01,     \
204					SOF_LINK_IDISP_HDMI, \
205					SOF_LINK_NONE,       \
206					SOF_LINK_NONE,       \
207					SOF_LINK_NONE)
208
209static int sof_audio_probe(struct platform_device *pdev)
210{
211	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
212	struct sof_card_private *ctx;
213	int ret;
214
215	if (pdev->id_entry && pdev->id_entry->driver_data)
216		sof_cs42l42_quirk = (unsigned long)pdev->id_entry->driver_data;
217
218	dev_dbg(&pdev->dev, "sof_cs42l42_quirk = %lx\n", sof_cs42l42_quirk);
219
220	/* initialize ctx with board quirk */
221	ctx = sof_intel_board_get_ctx(&pdev->dev, sof_cs42l42_quirk);
222	if (!ctx)
223		return -ENOMEM;
224
225	if (soc_intel_is_glk()) {
226		ctx->dmic_be_num = 1;
227
228		/* overwrite the DAI link order for GLK boards */
229		ctx->link_order_overwrite = GLK_LINK_ORDER;
230	}
231
232	if (mach->mach_params.codec_mask & IDISP_CODEC_MASK)
233		ctx->hdmi.idisp_codec = true;
234
235	/* update dai_link */
236	ret = sof_card_dai_links_create(&pdev->dev, &sof_audio_card_cs42l42, ctx);
237	if (ret)
238		return ret;
239
240	sof_audio_card_cs42l42.dev = &pdev->dev;
241
242	/* set platform name for each dailink */
243	ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_cs42l42,
244						    mach->mach_params.platform);
245	if (ret)
246		return ret;
247
248	snd_soc_card_set_drvdata(&sof_audio_card_cs42l42, ctx);
249
250	return devm_snd_soc_register_card(&pdev->dev,
251					  &sof_audio_card_cs42l42);
252}
253
254static const struct platform_device_id board_ids[] = {
255	{
256		.name = "glk_cs4242_mx98357a",
257		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(2) |
258					SOF_SSP_PORT_AMP(1)),
259	},
260	{
261		.name = "jsl_cs4242_mx98360a",
262		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(0) |
263					SOF_SSP_PORT_AMP(1)),
264	},
265	{
266		.name = "adl_cs42l42_def",
267		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(0) |
268					SOF_SSP_PORT_AMP(1) |
269					SOF_NUM_IDISP_HDMI(4) |
270					SOF_BT_OFFLOAD_PRESENT |
271					SOF_SSP_PORT_BT_OFFLOAD(2)),
272	},
273	{
274		.name = "rpl_cs42l42_def",
275		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(0) |
276					SOF_SSP_PORT_AMP(1) |
277					SOF_NUM_IDISP_HDMI(4) |
278					SOF_BT_OFFLOAD_PRESENT |
279					SOF_SSP_PORT_BT_OFFLOAD(2)),
280	},
281	{
282		.name = "mtl_cs42l42_def",
283		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(2) |
284					SOF_SSP_PORT_AMP(0) |
285					SOF_BT_OFFLOAD_PRESENT |
286					SOF_SSP_PORT_BT_OFFLOAD(1)),
287	},
288	{ }
289};
290MODULE_DEVICE_TABLE(platform, board_ids);
291
292static struct platform_driver sof_audio = {
293	.probe = sof_audio_probe,
294	.driver = {
295		.name = "sof_cs42l42",
296		.pm = &snd_soc_pm_ops,
297	},
298	.id_table = board_ids,
299};
300module_platform_driver(sof_audio)
301
302/* Module information */
303MODULE_DESCRIPTION("SOF Audio Machine driver for CS42L42");
304MODULE_AUTHOR("Brent Lu <brent.lu@intel.com>");
305MODULE_LICENSE("GPL");
306MODULE_IMPORT_NS("SND_SOC_INTEL_SOF_BOARD_HELPERS");
307MODULE_IMPORT_NS("SND_SOC_INTEL_SOF_MAXIM_COMMON");