^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * ASoC driver for PROTO AudioCODEC (with a WM8731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author: Florian Meier, <koalo@koalo.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright 2013
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/jack.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "../codecs/wm8731.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define XTAL_RATE 12288000 /* This is fixed on this board */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static int snd_proto_init(struct snd_soc_pcm_runtime *rtd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct snd_soc_card *card = rtd->card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /* Set proto sysclk */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) int ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) XTAL_RATE, SND_SOC_CLOCK_IN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) dev_err(card->dev, "Failed to set WM8731 SYSCLK: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static const struct snd_soc_dapm_widget snd_proto_widget[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) SND_SOC_DAPM_MIC("Microphone Jack", NULL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) SND_SOC_DAPM_HP("Headphone Jack", NULL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static const struct snd_soc_dapm_route snd_proto_route[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* speaker connected to LHPOUT/RHPOUT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {"Headphone Jack", NULL, "LHPOUT"},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {"Headphone Jack", NULL, "RHPOUT"},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* mic is connected to Mic Jack, with WM8731 Mic Bias */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {"MICIN", NULL, "Mic Bias"},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {"Mic Bias", NULL, "Microphone Jack"},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) /* audio machine driver */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static struct snd_soc_card snd_proto = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) .name = "snd_mikroe_proto",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .dapm_widgets = snd_proto_widget,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .num_dapm_widgets = ARRAY_SIZE(snd_proto_widget),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .dapm_routes = snd_proto_route,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .num_dapm_routes = ARRAY_SIZE(snd_proto_route),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static int snd_proto_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct snd_soc_dai_link *dai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct snd_soc_dai_link_component *comp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct device_node *np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct device_node *codec_np, *cpu_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct device_node *bitclkmaster = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct device_node *framemaster = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) unsigned int dai_fmt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (!np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) dev_err(&pdev->dev, "No device node supplied\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) snd_proto.dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) ret = snd_soc_of_parse_card_name(&snd_proto, "model");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) dai = devm_kzalloc(&pdev->dev, sizeof(*dai), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (!dai)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* for cpus/codecs/platforms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (!comp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) snd_proto.dai_link = dai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) snd_proto.num_links = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) dai->cpus = &comp[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) dai->num_cpus = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) dai->codecs = &comp[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) dai->num_codecs = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) dai->platforms = &comp[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) dai->num_platforms = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) dai->name = "WM8731";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) dai->stream_name = "WM8731 HiFi";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) dai->codecs->dai_name = "wm8731-hifi";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) dai->init = &snd_proto_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) codec_np = of_parse_phandle(np, "audio-codec", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (!codec_np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) dev_err(&pdev->dev, "audio-codec node missing\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) dai->codecs->of_node = codec_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) cpu_np = of_parse_phandle(np, "i2s-controller", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) if (!cpu_np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) dev_err(&pdev->dev, "i2s-controller missing\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dai->cpus->of_node = cpu_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) dai->platforms->of_node = cpu_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) dai_fmt = snd_soc_of_parse_daifmt(np, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) &bitclkmaster, &framemaster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) if (bitclkmaster != framemaster) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) dev_err(&pdev->dev, "Must be the same bitclock and frame master\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (bitclkmaster) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (codec_np == bitclkmaster)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) of_node_put(bitclkmaster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) of_node_put(framemaster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) dai->dai_fmt = dai_fmt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) of_node_put(codec_np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) of_node_put(cpu_np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) ret = snd_soc_register_card(&snd_proto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (ret && ret != -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) "snd_soc_register_card() failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static int snd_proto_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return snd_soc_unregister_card(&snd_proto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static const struct of_device_id snd_proto_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) { .compatible = "mikroe,mikroe-proto", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) MODULE_DEVICE_TABLE(of, snd_proto_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static struct platform_driver snd_proto_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .name = "snd-mikroe-proto",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .of_match_table = snd_proto_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .probe = snd_proto_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .remove = snd_proto_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) module_platform_driver(snd_proto_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) MODULE_AUTHOR("Florian Meier");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) MODULE_DESCRIPTION("ASoC Driver for PROTO board (WM8731)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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