^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: (GPL-2.0 OR MIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) // Copyright (c) 2020 BayLibre, SAS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) // Author: Jerome Brunet <jbrunet@baylibre.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <sound/soc-dai.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "meson-card.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct gx_dai_link_i2s_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) unsigned int mclk_fs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Base params for the codec to codec links
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Those will be over-written by the CPU side of the link
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static const struct snd_soc_pcm_stream codec_params = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) .formats = SNDRV_PCM_FMTBIT_S24_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .rate_min = 5525,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .rate_max = 192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .channels_min = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .channels_max = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static int gx_card_i2s_be_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct snd_pcm_hw_params *params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct gx_dai_link_i2s_data *be =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) (struct gx_dai_link_i2s_data *)priv->link_data[rtd->num];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return meson_card_i2s_set_sysclk(substream, params, be->mclk_fs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static const struct snd_soc_ops gx_card_i2s_be_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .hw_params = gx_card_i2s_be_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static int gx_card_parse_i2s(struct snd_soc_card *card,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct device_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int *index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct meson_card *priv = snd_soc_card_get_drvdata(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct snd_soc_dai_link *link = &card->dai_link[*index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct gx_dai_link_i2s_data *be;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* Allocate i2s link parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) be = devm_kzalloc(card->dev, sizeof(*be), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (!be)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) priv->link_data[*index] = be;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* Setup i2s link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) link->ops = &gx_card_i2s_be_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) link->dai_fmt = meson_card_parse_daifmt(node, link->cpus->of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) of_property_read_u32(node, "mclk-fs", &be->mclk_fs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int gx_card_cpu_identify(struct snd_soc_dai_link_component *c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) char *match)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (of_device_is_compatible(c->of_node, DT_PREFIX "aiu")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (strstr(c->dai_name, match))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* dai not matched */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 0;
^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) static int gx_card_add_link(struct snd_soc_card *card, struct device_node *np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int *index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct snd_soc_dai_link *dai_link = &card->dai_link[*index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct snd_soc_dai_link_component *cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) cpu = devm_kzalloc(card->dev, sizeof(*cpu), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (!cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) dai_link->cpus = cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) dai_link->num_cpus = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ret = meson_card_parse_dai(card, np, &dai_link->cpus->of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) &dai_link->cpus->dai_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (gx_card_cpu_identify(dai_link->cpus, "FIFO"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return meson_card_set_fe_link(card, dai_link, np, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ret = meson_card_set_be_link(card, dai_link, np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) /* Or apply codec to codec params if necessary */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (gx_card_cpu_identify(dai_link->cpus, "CODEC CTRL")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) dai_link->params = &codec_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) dai_link->no_pcm = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) snd_soc_dai_link_set_capabilities(dai_link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /* Check if the cpu is the i2s encoder and parse i2s data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (gx_card_cpu_identify(dai_link->cpus, "I2S Encoder"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) ret = gx_card_parse_i2s(card, np, index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static const struct meson_card_match_data gx_card_match_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .add_link = gx_card_add_link,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static const struct of_device_id gx_card_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .compatible = "amlogic,gx-sound-card",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .data = &gx_card_match_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }, {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) MODULE_DEVICE_TABLE(of, gx_card_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static struct platform_driver gx_card_pdrv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .probe = meson_card_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .remove = meson_card_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .name = "gx-sound-card",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .of_match_table = gx_card_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) module_platform_driver(gx_card_pdrv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) MODULE_DESCRIPTION("Amlogic GX ALSA machine driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags