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    Subject[PATCH v6 20/24] ASoC: qdsp6: q6afe: Add q6afe dai driver
    Date
    From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

    This patch adds support to q6afe backend dais driver.

    Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
    Reviewed-and-tested-by: Rohit kumar <rohitkr@codeaurora.org>
    ---
    sound/soc/qcom/Kconfig | 4 +
    sound/soc/qcom/qdsp6/Makefile | 1 +
    sound/soc/qcom/qdsp6/q6afe-dai.c | 752 +++++++++++++++++++++++++++++++++++++++
    3 files changed, 757 insertions(+)
    create mode 100644 sound/soc/qcom/qdsp6/q6afe-dai.c

    diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
    index 5353004cdcf4..8d36f419e0f8 100644
    --- a/sound/soc/qcom/Kconfig
    +++ b/sound/soc/qcom/Kconfig
    @@ -53,6 +53,9 @@ config SND_SOC_QDSP6_CORE
    config SND_SOC_QDSP6_AFE
    tristate

    +config SND_SOC_QDSP6_AFE_DAI
    + tristate
    +
    config SND_SOC_QDSP6_ADM
    tristate

    @@ -68,6 +71,7 @@ config SND_SOC_QDSP6
    select SND_SOC_QDSP6_COMMON
    select SND_SOC_QDSP6_CORE
    select SND_SOC_QDSP6_AFE
    + select SND_SOC_QDSP6_AFE_DAI
    select SND_SOC_QDSP6_ADM
    select SND_SOC_QDSP6_ROUTING
    select SND_SOC_QDSP6_ASM
    diff --git a/sound/soc/qcom/qdsp6/Makefile b/sound/soc/qcom/qdsp6/Makefile
    index 0e8e2febb7ec..bada1aa303c2 100644
    --- a/sound/soc/qcom/qdsp6/Makefile
    +++ b/sound/soc/qcom/qdsp6/Makefile
    @@ -1,6 +1,7 @@
    obj-$(CONFIG_SND_SOC_QDSP6_COMMON) += q6dsp-common.o
    obj-$(CONFIG_SND_SOC_QDSP6_CORE) += q6core.o
    obj-$(CONFIG_SND_SOC_QDSP6_AFE) += q6afe.o
    +obj-$(CONFIG_SND_SOC_QDSP6_AFE_DAI) += q6afe-dai.o
    obj-$(CONFIG_SND_SOC_QDSP6_ADM) += q6adm.o
    obj-$(CONFIG_SND_SOC_QDSP6_ROUTING) += q6routing.o
    obj-$(CONFIG_SND_SOC_QDSP6_ASM) += q6asm.o
    diff --git a/sound/soc/qcom/qdsp6/q6afe-dai.c b/sound/soc/qcom/qdsp6/q6afe-dai.c
    new file mode 100644
    index 000000000000..eccced580bd5
    --- /dev/null
    +++ b/sound/soc/qcom/qdsp6/q6afe-dai.c
    @@ -0,0 +1,752 @@
    +// SPDX-License-Identifier: GPL-2.0
    +// Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
    +// Copyright (c) 2018, Linaro Limited
    +
    +#include <linux/err.h>
    +#include <linux/init.h>
    +#include <linux/component.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 "q6afe.h"
    +
    +struct q6afe_dai_priv_data {
    + uint32_t sd_line_mask;
    +};
    +
    +struct q6afe_dai_data {
    + struct q6afe_port *port[AFE_PORT_MAX];
    + struct q6afe_port_config port_config[AFE_PORT_MAX];
    + bool is_port_started[AFE_PORT_MAX];
    + struct q6afe_dai_priv_data priv[AFE_PORT_MAX];
    +};
    +
    +static int q6slim_hw_params(struct snd_pcm_substream *substream,
    + struct snd_pcm_hw_params *params,
    + struct snd_soc_dai *dai)
    +{
    +
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + struct q6afe_slim_cfg *slim = &dai_data->port_config[dai->id].slim;
    +
    + slim->num_channels = params_channels(params);
    + slim->sample_rate = params_rate(params);
    +
    + switch (params_format(params)) {
    + case SNDRV_PCM_FORMAT_S16_LE:
    + case SNDRV_PCM_FORMAT_SPECIAL:
    + slim->bit_width = 16;
    + break;
    + case SNDRV_PCM_FORMAT_S24_LE:
    + slim->bit_width = 24;
    + break;
    + case SNDRV_PCM_FORMAT_S32_LE:
    + slim->bit_width = 32;
    + break;
    + default:
    + pr_err("%s: format %d\n",
    + __func__, params_format(params));
    + return -EINVAL;
    + }
    +
    + return 0;
    +}
    +
    +static int q6hdmi_hw_params(struct snd_pcm_substream *substream,
    + struct snd_pcm_hw_params *params,
    + struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + int channels = params_channels(params);
    + struct q6afe_hdmi_cfg *hdmi = &dai_data->port_config[dai->id].hdmi;
    +
    + hdmi->sample_rate = params_rate(params);
    + switch (params_format(params)) {
    + case SNDRV_PCM_FORMAT_S16_LE:
    + hdmi->bit_width = 16;
    + break;
    + case SNDRV_PCM_FORMAT_S24_LE:
    + hdmi->bit_width = 24;
    + break;
    + }
    +
    + /* HDMI spec CEA-861-E: Table 28 Audio InfoFrame Data Byte 4 */
    + switch (channels) {
    + case 2:
    + hdmi->channel_allocation = 0;
    + break;
    + case 3:
    + hdmi->channel_allocation = 0x02;
    + break;
    + case 4:
    + hdmi->channel_allocation = 0x06;
    + break;
    + case 5:
    + hdmi->channel_allocation = 0x0A;
    + break;
    + case 6:
    + hdmi->channel_allocation = 0x0B;
    + break;
    + case 7:
    + hdmi->channel_allocation = 0x12;
    + break;
    + case 8:
    + hdmi->channel_allocation = 0x13;
    + break;
    + default:
    + dev_err(dai->dev, "invalid Channels = %u\n", channels);
    + return -EINVAL;
    + }
    +
    + return 0;
    +}
    +
    +static int q6i2s_hw_params(struct snd_pcm_substream *substream,
    + struct snd_pcm_hw_params *params,
    + struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + struct q6afe_i2s_cfg *i2s = &dai_data->port_config[dai->id].i2s_cfg;
    +
    + i2s->sample_rate = params_rate(params);
    + i2s->bit_width = params_width(params);
    + i2s->num_channels = params_channels(params);
    + i2s->sd_line_mask = dai_data->priv[dai->id].sd_line_mask;
    +
    + return 0;
    +}
    +
    +static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + struct q6afe_i2s_cfg *i2s = &dai_data->port_config[dai->id].i2s_cfg;
    +
    + i2s->fmt = fmt;
    +
    + return 0;
    +}
    +
    +static void q6afe_dai_shutdown(struct snd_pcm_substream *substream,
    + struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + int rc;
    +
    + rc = q6afe_port_stop(dai_data->port[dai->id]);
    + if (rc < 0)
    + dev_err(dai->dev, "fail to close AFE port (%d)\n", rc);
    +
    + dai_data->is_port_started[dai->id] = false;
    +
    +}
    +
    +static int q6afe_mi2s_prepare(struct snd_pcm_substream *substream,
    + struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + int rc;
    +
    + if (dai_data->is_port_started[dai->id]) {
    + /* stop the port and restart with new port config */
    + rc = q6afe_port_stop(dai_data->port[dai->id]);
    + if (rc < 0) {
    + dev_err(dai->dev, "fail to close AFE port (%d)\n", rc);
    + return rc;
    + }
    + }
    +
    + rc = q6afe_i2s_port_prepare(dai_data->port[dai->id],
    + &dai_data->port_config[dai->id].i2s_cfg);
    + if (rc < 0) {
    + dev_err(dai->dev, "fail to prepare AFE port %x\n", dai->id);
    + return rc;
    + }
    +
    + rc = q6afe_port_start(dai_data->port[dai->id]);
    + if (rc < 0) {
    + dev_err(dai->dev, "fail to start AFE port %x\n", dai->id);
    + return rc;
    + }
    + dai_data->is_port_started[dai->id] = true;
    +
    + return 0;
    +}
    +
    +static int q6afe_dai_prepare(struct snd_pcm_substream *substream,
    + struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + int rc;
    +
    + if (dai_data->is_port_started[dai->id]) {
    + /* stop the port and restart with new port config */
    + rc = q6afe_port_stop(dai_data->port[dai->id]);
    + if (rc < 0) {
    + dev_err(dai->dev, "fail to close AFE port (%d)\n", rc);
    + return rc;
    + }
    + }
    +
    + if (dai->id == HDMI_RX)
    + q6afe_hdmi_port_prepare(dai_data->port[dai->id],
    + &dai_data->port_config[dai->id].hdmi);
    + else if (dai->id >= SLIMBUS_0_RX && dai->id <= SLIMBUS_6_TX)
    + q6afe_slim_port_prepare(dai_data->port[dai->id],
    + &dai_data->port_config[dai->id].slim);
    +
    + rc = q6afe_port_start(dai_data->port[dai->id]);
    + if (rc < 0) {
    + dev_err(dai->dev, "fail to start AFE port %x\n", dai->id);
    + return rc;
    + }
    + dai_data->is_port_started[dai->id] = true;
    +
    + return 0;
    +}
    +
    +static int q6slim_set_channel_map(struct snd_soc_dai *dai,
    + unsigned int tx_num, unsigned int *tx_slot,
    + unsigned int rx_num, unsigned int *rx_slot)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + struct q6afe_port_config *pcfg = &dai_data->port_config[dai->id];
    + int i;
    +
    + if (!rx_slot) {
    + pr_err("%s: rx slot not found\n", __func__);
    + return -EINVAL;
    + }
    +
    + for (i = 0; i < rx_num; i++) {
    + pcfg->slim.ch_mapping[i] = rx_slot[i];
    + pr_debug("%s: find number of channels[%d] ch[%d]\n",
    + __func__, i, rx_slot[i]);
    + }
    +
    + pcfg->slim.num_channels = rx_num;
    +
    + pr_debug("%s: SLIMBUS_%d_RX cnt[%d] ch[%d %d]\n", __func__,
    + (dai->id - SLIMBUS_0_RX) / 2, rx_num,
    + pcfg->slim.ch_mapping[0],
    + pcfg->slim.ch_mapping[1]);
    +
    + return 0;
    +}
    +
    +static int q6afe_mi2s_set_sysclk(struct snd_soc_dai *dai,
    + int clk_id, unsigned int freq, int dir)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + struct q6afe_port *port = dai_data->port[dai->id];
    +
    + switch (clk_id) {
    + case LPAIF_DIG_CLK:
    + return q6afe_port_set_sysclk(port, clk_id, 0, 5, freq, dir);
    + case LPAIF_BIT_CLK:
    + case LPAIF_OSR_CLK:
    + return q6afe_port_set_sysclk(port, clk_id,
    + Q6AFE_LPASS_CLK_SRC_INTERNAL,
    + Q6AFE_LPASS_CLK_ROOT_DEFAULT,
    + freq, dir);
    + case Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT ... Q6AFE_LPASS_CLK_ID_INT_MCLK_1:
    + return q6afe_port_set_sysclk(port, clk_id,
    + Q6AFE_LPASS_CLK_ATTRIBUTE_COUPLE_NO,
    + Q6AFE_LPASS_CLK_ROOT_DEFAULT,
    + freq, dir);
    + }
    +
    + return 0;
    +}
    +
    +static const struct snd_soc_dapm_route q6afe_dapm_routes[] = {
    + {"HDMI Playback", NULL, "HDMI_RX"},
    + {"Slimbus1 Playback", NULL, "SLIMBUS_1_RX"},
    + {"Slimbus2 Playback", NULL, "SLIMBUS_2_RX"},
    + {"Slimbus3 Playback", NULL, "SLIMBUS_3_RX"},
    + {"Slimbus4 Playback", NULL, "SLIMBUS_4_RX"},
    + {"Slimbus5 Playback", NULL, "SLIMBUS_5_RX"},
    + {"Slimbus6 Playback", NULL, "SLIMBUS_6_RX"},
    +
    + {"Primary MI2S Playback", NULL, "PRI_MI2S_RX"},
    + {"Secondary MI2S Playback", NULL, "SEC_MI2S_RX"},
    + {"Tertiary MI2S Playback", NULL, "TERT_MI2S_RX"},
    + {"Quaternary MI2S Playback", NULL, "QUAT_MI2S_RX"},
    +
    + {"TERT_MI2S_TX", NULL, "Tertiary MI2S Capture"},
    + {"PRI_MI2S_TX", NULL, "Primary MI2S Capture"},
    + {"SEC_MI2S_TX", NULL, "Secondary MI2S Capture"},
    + {"QUAT_MI2S_TX", NULL, "Quaternary MI2S Capture"},
    +};
    +
    +static struct snd_soc_dai_ops q6hdmi_ops = {
    + .prepare = q6afe_dai_prepare,
    + .hw_params = q6hdmi_hw_params,
    + .shutdown = q6afe_dai_shutdown,
    +};
    +
    +static struct snd_soc_dai_ops q6i2s_ops = {
    + .prepare = q6afe_mi2s_prepare,
    + .hw_params = q6i2s_hw_params,
    + .set_fmt = q6i2s_set_fmt,
    + .shutdown = q6afe_dai_shutdown,
    + .set_sysclk = q6afe_mi2s_set_sysclk,
    +};
    +
    +static struct snd_soc_dai_ops q6slim_ops = {
    + .prepare = q6afe_dai_prepare,
    + .hw_params = q6slim_hw_params,
    + .shutdown = q6afe_dai_shutdown,
    + .set_channel_map = q6slim_set_channel_map,
    +};
    +
    +static int msm_dai_q6_dai_probe(struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    + struct snd_soc_dapm_context *dapm;
    + struct q6afe_port *port;
    +
    + dapm = snd_soc_component_get_dapm(dai->component);
    +
    + port = q6afe_port_get_from_id(dai->dev, dai->id);
    + if (IS_ERR(port)) {
    + dev_err(dai->dev, "Unable to get afe port\n");
    + return -EINVAL;
    + }
    + dai_data->port[dai->id] = port;
    +
    + return 0;
    +}
    +
    +static int msm_dai_q6_dai_remove(struct snd_soc_dai *dai)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
    +
    + q6afe_port_put(dai_data->port[dai->id]);
    + dai_data->port[dai->id] = NULL;
    +
    + return 0;
    +}
    +
    +static struct snd_soc_dai_driver q6afe_dais[] = {
    + {
    + .playback = {
    + .stream_name = "HDMI Playback",
    + .rates = SNDRV_PCM_RATE_48000 |
    + SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 2,
    + .channels_max = 8,
    + .rate_max = 192000,
    + .rate_min = 48000,
    + },
    + .ops = &q6hdmi_ops,
    + .id = HDMI_RX,
    + .name = "HDMI",
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .name = "SLIMBUS_0_RX",
    + .ops = &q6slim_ops,
    + .id = SLIMBUS_0_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + .playback = {
    + .stream_name = "Slimbus Playback",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 8,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + }, {
    + .playback = {
    + .stream_name = "Slimbus1 Playback",
    + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
    + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 2,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + .name = "SLIMBUS_1_RX",
    + .ops = &q6slim_ops,
    + .id = SLIMBUS_1_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Slimbus2 Playback",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 8,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + .name = "SLIMBUS_2_RX",
    + .ops = &q6slim_ops,
    + .id = SLIMBUS_2_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Slimbus3 Playback",
    + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
    + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 2,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + .name = "SLIMBUS_3_RX",
    + .ops = &q6slim_ops,
    + .id = SLIMBUS_3_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Slimbus4 Playback",
    + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
    + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 2,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + .name = "SLIMBUS_4_RX",
    + .ops = &q6slim_ops,
    + .id = SLIMBUS_4_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Slimbus5 Playback",
    + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
    + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 2,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + .name = "SLIMBUS_5_RX",
    + .ops = &q6slim_ops,
    + .id = SLIMBUS_5_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Slimbus6 Playback",
    + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
    + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
    + SNDRV_PCM_RATE_192000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .channels_min = 1,
    + .channels_max = 2,
    + .rate_min = 8000,
    + .rate_max = 192000,
    + },
    + .ops = &q6slim_ops,
    + .name = "SLIMBUS_6_RX",
    + .id = SLIMBUS_6_RX,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Primary MI2S Playback",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .id = PRIMARY_MI2S_RX,
    + .name = "PRI_MI2S_RX",
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .capture = {
    + .stream_name = "Primary MI2S Capture",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .id = PRIMARY_MI2S_TX,
    + .name = "PRI_MI2S_TX",
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Secondary MI2S Playback",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .name = "SEC_MI2S_RX",
    + .id = SECONDARY_MI2S_RX,
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .capture = {
    + .stream_name = "Secondary MI2S Capture",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .id = SECONDARY_MI2S_TX,
    + .name = "SEC_MI2S_TX",
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Tertiary MI2S Playback",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .name = "TERT_MI2S_RX",
    + .id = TERTIARY_MI2S_RX,
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .capture = {
    + .stream_name = "Tertiary MI2S Capture",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .id = TERTIARY_MI2S_TX,
    + .name = "TERT_MI2S_TX",
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .playback = {
    + .stream_name = "Quaternary MI2S Playback",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .name = "QUAT_MI2S_RX",
    + .id = QUATERNARY_MI2S_RX,
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + }, {
    + .capture = {
    + .stream_name = "Quaternary MI2S Capture",
    + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000 |
    + SNDRV_PCM_RATE_16000,
    + .formats = SNDRV_PCM_FMTBIT_S16_LE |
    + SNDRV_PCM_FMTBIT_S24_LE,
    + .rate_min = 8000,
    + .rate_max = 48000,
    + },
    + .id = QUATERNARY_MI2S_TX,
    + .name = "QUAT_MI2S_TX",
    + .ops = &q6i2s_ops,
    + .probe = msm_dai_q6_dai_probe,
    + .remove = msm_dai_q6_dai_remove,
    + },
    +};
    +
    +static int q6afe_of_xlate_dai_name(struct snd_soc_component *component,
    + struct of_phandle_args *args,
    + const char **dai_name)
    +{
    + int id = args->args[0];
    + int ret = -EINVAL;
    + int i;
    +
    + for (i = 0; i < ARRAY_SIZE(q6afe_dais); i++) {
    + if (q6afe_dais[i].id == id) {
    + *dai_name = q6afe_dais[i].name;
    + ret = 0;
    + break;
    + }
    + }
    +
    + return ret;
    +}
    +
    +static const struct snd_soc_dapm_widget q6afe_dai_widgets[] = {
    + SND_SOC_DAPM_AIF_OUT("HDMI_RX", "HDMI Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_0_RX", "Slimbus Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_1_RX", "Slimbus1 Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_2_RX", "Slimbus2 Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_3_RX", "Slimbus3 Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_4_RX", "Slimbus4 Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_5_RX", "Slimbus5 Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SLIMBUS_6_RX", "Slimbus6 Playback", 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("QUAT_MI2S_RX", "Quaternary MI2S Playback",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_IN("QUAT_MI2S_TX", "Quaternary MI2S Capture",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("TERT_MI2S_RX", "Tertiary MI2S Playback",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_IN("TERT_MI2S_TX", "Tertiary MI2S Capture",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SEC_MI2S_RX", "Secondary MI2S Playback",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_IN("SEC_MI2S_TX", "Secondary MI2S Capture",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("SEC_MI2S_RX_SD1",
    + "Secondary MI2S Playback SD1",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_OUT("PRI_MI2S_RX", "Primary MI2S Playback",
    + 0, 0, 0, 0),
    + SND_SOC_DAPM_AIF_IN("PRI_MI2S_TX", "Primary MI2S Capture",
    + 0, 0, 0, 0),
    +};
    +
    +static const struct snd_soc_component_driver q6afe_dai_component = {
    + .name = "q6afe-dai-component",
    + .dapm_widgets = q6afe_dai_widgets,
    + .num_dapm_widgets = ARRAY_SIZE(q6afe_dai_widgets),
    + .dapm_routes = q6afe_dapm_routes,
    + .num_dapm_routes = ARRAY_SIZE(q6afe_dapm_routes),
    + .of_xlate_dai_name = q6afe_of_xlate_dai_name,
    +
    +};
    +
    +static void of_q6afe_parse_dai_data(struct device *dev,
    + struct q6afe_dai_data *data)
    +{
    + struct device_node *node;
    + int ret;
    +
    + for_each_child_of_node(dev->of_node, node) {
    + unsigned int lines[Q6AFE_MAX_MI2S_LINES];
    + struct q6afe_dai_priv_data *priv;
    + int id, i, num_lines;
    +
    + ret = of_property_read_u32(node, "reg", &id);
    + if (ret || id > AFE_PORT_MAX) {
    + dev_err(dev, "valid dai id not found:%d\n", ret);
    + continue;
    + }
    +
    + switch (id) {
    + /* MI2S specific properties */
    + case PRIMARY_MI2S_RX ... QUATERNARY_MI2S_TX:
    + priv = &data->priv[id];
    + ret = of_property_read_variable_u32_array(node,
    + "qcom,sd-lines",
    + lines, 0,
    + Q6AFE_MAX_MI2S_LINES);
    + if (ret < 0)
    + num_lines = 0;
    + else
    + num_lines = ret;
    +
    + priv->sd_line_mask = 0;
    +
    + for (i = 0; i < num_lines; i++)
    + priv->sd_line_mask |= BIT(lines[i]);
    +
    + break;
    + default:
    + break;
    + }
    + }
    +}
    +
    +static int q6afe_dai_bind(struct device *dev, struct device *master, void *data)
    +{
    + struct q6afe_dai_data *dai_data;
    + int rc = 0;
    +
    + dai_data = kzalloc(sizeof(*dai_data), GFP_KERNEL);
    + if (!dai_data)
    + rc = -ENOMEM;
    +
    + dev_set_drvdata(dev, dai_data);
    +
    + of_q6afe_parse_dai_data(dev, dai_data);
    +
    + return snd_soc_register_component(dev, &q6afe_dai_component,
    + q6afe_dais, ARRAY_SIZE(q6afe_dais));
    +}
    +
    +static void q6afe_dai_unbind(struct device *dev, struct device *master,
    + void *data)
    +{
    + struct q6afe_dai_data *dai_data = dev_get_drvdata(dev);
    +
    + snd_soc_unregister_component(dev);
    + kfree(dai_data);
    +}
    +
    +static const struct component_ops q6afe_dai_comp_ops = {
    + .bind = q6afe_dai_bind,
    + .unbind = q6afe_dai_unbind,
    +};
    +
    +static int q6afe_dai_dev_probe(struct platform_device *pdev)
    +{
    + return component_add(&pdev->dev, &q6afe_dai_comp_ops);
    +}
    +
    +static int q6afe_dai_dev_remove(struct platform_device *pdev)
    +{
    + component_del(&pdev->dev, &q6afe_dai_comp_ops);
    + return 0;
    +}
    +
    +static struct platform_driver q6afe_dai_platform_driver = {
    + .driver = {
    + .name = "q6afe-dai",
    + },
    + .probe = q6afe_dai_dev_probe,
    + .remove = q6afe_dai_dev_remove,
    +};
    +module_platform_driver(q6afe_dai_platform_driver);
    +
    +MODULE_DESCRIPTION("Q6 Audio Fronend dai driver");
    +MODULE_LICENSE("GPL v2");
    --
    2.16.2
    \
     
     \ /
      Last update: 2018-04-26 11:53    [W:3.319 / U:0.596 seconds]
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