From: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>

This patch adds support to SLIMBus AFE backend dais.

Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
---
 sound/soc/qcom/qdsp6/q6afe-dai.c | 211 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 211 insertions(+)

diff --git a/sound/soc/qcom/qdsp6/q6afe-dai.c b/sound/soc/qcom/qdsp6/q6afe-dai.c
index f6a618e9db9e..39badb701be0 100644
--- a/sound/soc/qcom/qdsp6/q6afe-dai.c
+++ b/sound/soc/qcom/qdsp6/q6afe-dai.c
@@ -59,6 +59,37 @@ static const struct snd_kcontrol_new q6afe_config_controls[] 
= {
                                 q6hdmi_format_put),
 };
 
+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 = q6afe_get_dai_data(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)
@@ -150,6 +181,9 @@ static int q6afe_dai_prepare(struct snd_pcm_substream 
*substream,
        if (dai->id == AFE_PORT_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) {
@@ -161,8 +195,44 @@ static int q6afe_dai_prepare(struct snd_pcm_substream 
*substream,
        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 = q6afe_get_dai_data(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 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"},
+
 };
 
 static struct snd_soc_dai_ops q6hdmi_ops = {
@@ -172,6 +242,14 @@ static struct snd_soc_dai_ops q6hdmi_ops = {
        .startup        = q6afe_dai_startup,
 };
 
+static struct snd_soc_dai_ops q6slim_ops = {
+       .prepare        = q6afe_dai_prepare,
+       .hw_params      = q6slim_hw_params,
+       .shutdown       = q6afe_dai_shutdown,
+       .startup        = q6afe_dai_startup,
+       .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 = q6afe_get_dai_data(dai->dev);
@@ -218,6 +296,132 @@ static struct snd_soc_dai_driver q6afe_dais[] = {
                .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 | SNDRV_PCM_RATE_44100,
+                       .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,
        },
 };
 
@@ -241,6 +445,13 @@ static int q6afe_of_xlate_dai_name(struct 
snd_soc_component *component,
 
 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),
 };
 
 static const struct snd_soc_component_driver q6afe_dai_component = {
-- 
2.15.1

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