diff options
Diffstat (limited to 'sound/soc/qcom/qdsp6/q6apm-lpass-dais.c')
| -rw-r--r-- | sound/soc/qcom/qdsp6/q6apm-lpass-dais.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c new file mode 100644 index 000000000..23d23bc6f --- /dev/null +++ b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c @@ -0,0 +1,265 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2021, Linaro Limited + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> +#include "q6dsp-lpass-ports.h" +#include "audioreach.h" +#include "q6apm.h" + +#define AUDIOREACH_BE_PCM_BASE 16 + +struct q6apm_lpass_dai_data { + struct q6apm_graph *graph[APM_PORT_MAX]; + bool is_port_started[APM_PORT_MAX]; + struct audioreach_module_config module_config[APM_PORT_MAX]; +}; + +static int q6dma_set_channel_map(struct snd_soc_dai *dai, + unsigned int tx_num, unsigned int *tx_ch_mask, + unsigned int rx_num, unsigned int *rx_ch_mask) +{ + + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; + int ch_mask; + + switch (dai->id) { + case WSA_CODEC_DMA_TX_0: + case WSA_CODEC_DMA_TX_1: + case WSA_CODEC_DMA_TX_2: + case VA_CODEC_DMA_TX_0: + case VA_CODEC_DMA_TX_1: + case VA_CODEC_DMA_TX_2: + case TX_CODEC_DMA_TX_0: + case TX_CODEC_DMA_TX_1: + case TX_CODEC_DMA_TX_2: + case TX_CODEC_DMA_TX_3: + case TX_CODEC_DMA_TX_4: + case TX_CODEC_DMA_TX_5: + if (!tx_ch_mask) { + dev_err(dai->dev, "tx slot not found\n"); + return -EINVAL; + } + + if (tx_num > AR_PCM_MAX_NUM_CHANNEL) { + dev_err(dai->dev, "invalid tx num %d\n", + tx_num); + return -EINVAL; + } + ch_mask = *tx_ch_mask; + + break; + case WSA_CODEC_DMA_RX_0: + case WSA_CODEC_DMA_RX_1: + case RX_CODEC_DMA_RX_0: + case RX_CODEC_DMA_RX_1: + case RX_CODEC_DMA_RX_2: + case RX_CODEC_DMA_RX_3: + case RX_CODEC_DMA_RX_4: + case RX_CODEC_DMA_RX_5: + case RX_CODEC_DMA_RX_6: + case RX_CODEC_DMA_RX_7: + /* rx */ + if (!rx_ch_mask) { + dev_err(dai->dev, "rx slot not found\n"); + return -EINVAL; + } + if (rx_num > APM_PORT_MAX_AUDIO_CHAN_CNT) { + dev_err(dai->dev, "invalid rx num %d\n", + rx_num); + return -EINVAL; + } + ch_mask = *rx_ch_mask; + + break; + default: + dev_err(dai->dev, "%s: invalid dai id 0x%x\n", + __func__, dai->id); + return -EINVAL; + } + + cfg->active_channels_mask = ch_mask; + + return 0; +} + +static int q6dma_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; + + cfg->bit_width = params_width(params); + cfg->sample_rate = params_rate(params); + cfg->num_channels = params_channels(params); + + return 0; +} + +static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + int rc; + + if (!dai_data->is_port_started[dai->id]) + return; + rc = q6apm_graph_stop(dai_data->graph[dai->id]); + if (rc < 0) + dev_err(dai->dev, "fail to close APM port (%d)\n", rc); + + q6apm_graph_close(dai_data->graph[dai->id]); + dai_data->is_port_started[dai->id] = false; +} + +static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; + struct q6apm_graph *graph; + int graph_id = dai->id; + int rc; + + if (dai_data->is_port_started[dai->id]) { + q6apm_graph_stop(dai_data->graph[dai->id]); + dai_data->is_port_started[dai->id] = false; + } + + /** + * It is recommend to load DSP with source graph first and then sink + * graph, so sequence for playback and capture will be different + */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id); + if (IS_ERR(graph)) { + dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id); + rc = PTR_ERR(graph); + return rc; + } + dai_data->graph[graph_id] = graph; + } + + cfg->direction = substream->stream; + rc = q6apm_graph_media_format_pcm(dai_data->graph[dai->id], cfg); + + if (rc) { + dev_err(dai->dev, "Failed to set media format %d\n", rc); + return rc; + } + + rc = q6apm_graph_prepare(dai_data->graph[dai->id]); + if (rc) { + dev_err(dai->dev, "Failed to prepare Graph %d\n", rc); + return rc; + } + + rc = q6apm_graph_start(dai_data->graph[dai->id]); + if (rc < 0) { + dev_err(dai->dev, "fail to start APM port %x\n", dai->id); + return rc; + } + dai_data->is_port_started[dai->id] = true; + + return 0; +} + +static int q6apm_lpass_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + struct q6apm_graph *graph; + int graph_id = dai->id; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id); + if (IS_ERR(graph)) { + dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id); + return PTR_ERR(graph); + } + dai_data->graph[graph_id] = graph; + } + + return 0; +} + +static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; + + cfg->fmt = fmt; + + return 0; +} + +static const struct snd_soc_dai_ops q6dma_ops = { + .prepare = q6apm_lpass_dai_prepare, + .startup = q6apm_lpass_dai_startup, + .shutdown = q6apm_lpass_dai_shutdown, + .set_channel_map = q6dma_set_channel_map, + .hw_params = q6dma_hw_params, +}; + +static const struct snd_soc_dai_ops q6i2s_ops = { + .prepare = q6apm_lpass_dai_prepare, + .startup = q6apm_lpass_dai_startup, + .shutdown = q6apm_lpass_dai_shutdown, + .set_channel_map = q6dma_set_channel_map, + .hw_params = q6dma_hw_params, + .set_fmt = q6i2s_set_fmt, +}; + +static const struct snd_soc_component_driver q6apm_lpass_dai_component = { + .name = "q6apm-be-dai-component", + .of_xlate_dai_name = q6dsp_audio_ports_of_xlate_dai_name, + .be_pcm_base = AUDIOREACH_BE_PCM_BASE, + .use_dai_pcm_id = true, +}; + +static int q6apm_lpass_dai_dev_probe(struct platform_device *pdev) +{ + struct q6dsp_audio_port_dai_driver_config cfg; + struct q6apm_lpass_dai_data *dai_data; + struct snd_soc_dai_driver *dais; + struct device *dev = &pdev->dev; + int num_dais; + + dai_data = devm_kzalloc(dev, sizeof(*dai_data), GFP_KERNEL); + if (!dai_data) + return -ENOMEM; + + dev_set_drvdata(dev, dai_data); + + memset(&cfg, 0, sizeof(cfg)); + cfg.q6i2s_ops = &q6i2s_ops; + cfg.q6dma_ops = &q6dma_ops; + dais = q6dsp_audio_ports_set_config(dev, &cfg, &num_dais); + + return devm_snd_soc_register_component(dev, &q6apm_lpass_dai_component, dais, num_dais); +} + +#ifdef CONFIG_OF +static const struct of_device_id q6apm_lpass_dai_device_id[] = { + { .compatible = "qcom,q6apm-lpass-dais" }, + {}, +}; +MODULE_DEVICE_TABLE(of, q6apm_lpass_dai_device_id); +#endif + +static struct platform_driver q6apm_lpass_dai_platform_driver = { + .driver = { + .name = "q6apm-lpass-dais", + .of_match_table = of_match_ptr(q6apm_lpass_dai_device_id), + }, + .probe = q6apm_lpass_dai_dev_probe, +}; +module_platform_driver(q6apm_lpass_dai_platform_driver); + +MODULE_DESCRIPTION("AUDIOREACH APM LPASS dai driver"); +MODULE_LICENSE("GPL"); |