1// SPDX-License-Identifier: GPL-2.0-only
2//
3// Intel SOF Machine Driver with Cirrus Logic CS35L56 Smart Amp
4
5#include <linux/module.h>
6#include <linux/platform_device.h>
7#include <sound/core.h>
8#include <sound/pcm.h>
9#include <sound/pcm_params.h>
10#include <sound/soc.h>
11#include <sound/soc-acpi.h>
12#include "sof_sdw_common.h"
13
14static const struct snd_soc_dapm_widget bridge_widgets[] = {
15	SND_SOC_DAPM_SPK("Bridge Speaker", NULL),
16};
17
18static const struct snd_soc_dapm_route bridge_map[] = {
19	{"Bridge Speaker", NULL, "AMPL SPK"},
20	{"Bridge Speaker", NULL, "AMPR SPK"},
21};
22
23static const char * const bridge_cs35l56_name_prefixes[] = {
24	"AMPL",
25	"AMPR",
26};
27
28static int bridge_cs35l56_asp_init(struct snd_soc_pcm_runtime *rtd)
29{
30	struct snd_soc_card *card = rtd->card;
31	int i, ret;
32	unsigned int rx_mask = 3; // ASP RX1, RX2
33	unsigned int tx_mask = 3; // ASP TX1, TX2
34	struct snd_soc_dai *codec_dai;
35	struct snd_soc_dai *cpu_dai;
36
37	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
38					  "%s spk:cs35l56-bridge",
39					  card->components);
40	if (!card->components)
41		return -ENOMEM;
42
43	ret = snd_soc_dapm_new_controls(&card->dapm, bridge_widgets,
44					ARRAY_SIZE(bridge_widgets));
45	if (ret) {
46		dev_err(card->dev, "widgets addition failed: %d\n", ret);
47		return ret;
48	}
49
50	ret = snd_soc_dapm_add_routes(&card->dapm, bridge_map, ARRAY_SIZE(bridge_map));
51	if (ret) {
52		dev_err(card->dev, "map addition failed: %d\n", ret);
53		return ret;
54	}
55
56	/* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */
57	for_each_rtd_codec_dais(rtd, i, codec_dai) {
58		ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16);
59		if (ret < 0)
60			return ret;
61
62		ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN);
63		if (ret < 0)
64			return ret;
65	}
66
67	for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
68		ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16);
69		if (ret < 0)
70			return ret;
71	}
72
73	return 0;
74}
75
76static const struct snd_soc_pcm_stream bridge_params = {
77	.formats = SNDRV_PCM_FMTBIT_S16_LE,
78	.rate_min = 48000,
79	.rate_max = 48000,
80	.channels_min = 2,
81	.channels_max = 2,
82};
83
84SND_SOC_DAILINK_DEFS(bridge_dai,
85		     DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")),
86		     DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"),
87					COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")),
88		     DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec")));
89
90static const struct snd_soc_dai_link bridge_dai_template = {
91	.name = "cs42l43-cs35l56",
92	.init = bridge_cs35l56_asp_init,
93	.c2c_params = &bridge_params,
94	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC,
95	SND_SOC_DAILINK_REG(bridge_dai),
96};
97
98int bridge_cs35l56_count_sidecar(struct snd_soc_card *card,
99				 int *num_dais, int *num_devs)
100{
101	if (sof_sdw_quirk & SOF_SIDECAR_AMPS) {
102		(*num_dais)++;
103		(*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes);
104	}
105
106	return 0;
107}
108
109int bridge_cs35l56_add_sidecar(struct snd_soc_card *card,
110			       struct snd_soc_dai_link **dai_links,
111			       struct snd_soc_codec_conf **codec_conf)
112{
113	if (sof_sdw_quirk & SOF_SIDECAR_AMPS) {
114		**dai_links = bridge_dai_template;
115
116		for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) {
117			(*codec_conf)->dlc.name = (*dai_links)->codecs[i].name;
118			(*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i];
119			(*codec_conf)++;
120		}
121
122		(*dai_links)++;
123	}
124
125	return 0;
126}
127
128int bridge_cs35l56_spk_init(struct snd_soc_card *card,
129			    struct snd_soc_dai_link *dai_links,
130			    struct sof_sdw_codec_info *info,
131			    bool playback)
132{
133	if (sof_sdw_quirk & SOF_SIDECAR_AMPS)
134		info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes);
135
136	return 0;
137}
138