diff options
Diffstat (limited to 'sound/soc/qcom/x1e80100.c')
| -rw-r--r-- | sound/soc/qcom/x1e80100.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/sound/soc/qcom/x1e80100.c b/sound/soc/qcom/x1e80100.c new file mode 100644 index 000000000000..a3f4785c4bbe --- /dev/null +++ b/sound/soc/qcom/x1e80100.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2023, Linaro Limited + +#include <dt-bindings/sound/qcom,q6afe.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/soundwire/sdw.h> +#include <sound/pcm.h> +#include <sound/jack.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include "common.h" +#include "qdsp6/q6afe.h" +#include "qdsp6/q6dsp-common.h" +#include "sdw.h" + +struct x1e80100_snd_data { + bool stream_prepared[AFE_PORT_MAX]; + struct snd_soc_card *card; + struct snd_soc_jack jack; + struct snd_soc_jack dp_jack[8]; + bool jack_setup; +}; + +static int x1e80100_snd_init(struct snd_soc_pcm_runtime *rtd) +{ + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct snd_soc_jack *dp_jack = NULL; + int dp_pcm_id = 0; + + switch (cpu_dai->id) { + case DISPLAY_PORT_RX_0: + dp_pcm_id = 0; + dp_jack = &data->dp_jack[dp_pcm_id]; + break; + case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7: + dp_pcm_id = cpu_dai->id - DISPLAY_PORT_RX_1 + 1; + dp_jack = &data->dp_jack[dp_pcm_id]; + break; + default: + break; + } + + if (dp_jack) + return qcom_snd_dp_jack_setup(rtd, dp_jack, dp_pcm_id); + + return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); +} + +static int x1e80100_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct snd_interval *rate = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + + rate->min = rate->max = 48000; + switch (cpu_dai->id) { + case TX_CODEC_DMA_TX_0: + case TX_CODEC_DMA_TX_1: + case TX_CODEC_DMA_TX_2: + case TX_CODEC_DMA_TX_3: + channels->min = 1; + break; + default: + break; + } + + return 0; +} + +static int x1e80100_snd_hw_map_channels(unsigned int *ch_map, int num) +{ + switch (num) { + case 1: + ch_map[0] = PCM_CHANNEL_FC; + break; + case 2: + ch_map[0] = PCM_CHANNEL_FL; + ch_map[1] = PCM_CHANNEL_FR; + break; + case 3: + ch_map[0] = PCM_CHANNEL_FL; + ch_map[1] = PCM_CHANNEL_FR; + ch_map[2] = PCM_CHANNEL_FC; + break; + case 4: + ch_map[0] = PCM_CHANNEL_FL; + ch_map[1] = PCM_CHANNEL_LB; + ch_map[2] = PCM_CHANNEL_FR; + ch_map[3] = PCM_CHANNEL_RB; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int x1e80100_snd_prepare(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + unsigned int channels = substream->runtime->channels; + unsigned int rx_slot[4]; + int ret; + + switch (cpu_dai->id) { + case WSA_CODEC_DMA_RX_0: + case WSA_CODEC_DMA_RX_1: + ret = x1e80100_snd_hw_map_channels(rx_slot, channels); + if (ret) + return ret; + + ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL, + channels, rx_slot); + if (ret) + return ret; + break; + default: + break; + } + + return qcom_snd_sdw_prepare(substream, &data->stream_prepared[cpu_dai->id]); +} + +static int x1e80100_snd_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + + return qcom_snd_sdw_hw_free(substream, &data->stream_prepared[cpu_dai->id]); +} + +static const struct snd_soc_ops x1e80100_be_ops = { + .startup = qcom_snd_sdw_startup, + .shutdown = qcom_snd_sdw_shutdown, + .hw_free = x1e80100_snd_hw_free, + .prepare = x1e80100_snd_prepare, +}; + +static void x1e80100_add_be_ops(struct snd_soc_card *card) +{ + struct snd_soc_dai_link *link; + int i; + + for_each_card_prelinks(card, i, link) { + if (link->no_pcm == 1) { + link->init = x1e80100_snd_init; + link->be_hw_params_fixup = x1e80100_be_hw_params_fixup; + link->ops = &x1e80100_be_ops; + } + } +} + +static int x1e80100_platform_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card; + struct x1e80100_snd_data *data; + struct device *dev = &pdev->dev; + int ret; + + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + /* Allocate the private data */ + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + card->owner = THIS_MODULE; + card->dev = dev; + dev_set_drvdata(dev, card); + snd_soc_card_set_drvdata(card, data); + + ret = qcom_snd_parse_of(card); + if (ret) + return ret; + + card->driver_name = of_device_get_match_data(dev); + x1e80100_add_be_ops(card); + + return devm_snd_soc_register_card(dev, card); +} + +static const struct of_device_id snd_x1e80100_dt_match[] = { + { .compatible = "qcom,x1e80100-sndcard", .data = "x1e80100" }, + { .compatible = "qcom,glymur-sndcard", .data = "glymur" }, + {} +}; +MODULE_DEVICE_TABLE(of, snd_x1e80100_dt_match); + +static struct platform_driver snd_x1e80100_driver = { + .probe = x1e80100_platform_probe, + .driver = { + .name = "snd-x1e80100", + .of_match_table = snd_x1e80100_dt_match, + }, +}; +module_platform_driver(snd_x1e80100_driver); +MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); +MODULE_AUTHOR("Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>"); +MODULE_DESCRIPTION("Qualcomm X1E80100 ASoC Machine Driver"); +MODULE_LICENSE("GPL"); |