[alsa-devel] [PATCH v2 5/8] ASoC: qcom: apq8096: add support for primary and quaternary I2S/PCM

[Adam Serbinski]

This adds support to primary and quarternary I2S and PCM ports.

Signed-off-by: Adam Serbinski <adam at serbinski.com>
CC: Andy Gross <agross at kernel.org>
CC: Mark Rutland <mark.rutland at arm.com>
CC: Liam Girdwood <lgirdwood at gmail.com>
CC: Patrick Lai <plai at codeaurora.org>
CC: Banajit Goswami <bgoswami at codeaurora.org>
CC: Jaroslav Kysela <perex at perex.cz>
CC: Takashi Iwai <tiwai at suse.com>
CC: alsa-devel at alsa-project.org
CC: linux-arm-msm at vger.kernel.org
CC: devicetree at vger.kernel.org
CC: linux-kernel at vger.kernel.org
---
 sound/soc/qcom/apq8096.c | 86 +++++++++++++++++++++++++++++++++-------
 1 file changed, 71 insertions(+), 15 deletions(-)

diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c
index 94363fd6846a..1edcaa15234f 100644
--- a/sound/soc/qcom/apq8096.c
+++ b/sound/soc/qcom/apq8096.c
@@ -8,24 +8,13 @@
 #include <sound/soc-dapm.h>
 #include <sound/pcm.h>
 #include "common.h"
+#include "qdsp6/q6afe.h"
 
 #define SLIM_MAX_TX_PORTS 16
 #define SLIM_MAX_RX_PORTS 16
 #define WCD9335_DEFAULT_MCLK_RATE	9600000
-
-static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
-				      struct snd_pcm_hw_params *params)
-{
-	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;
-	channels->min = channels->max = 2;
-
-	return 0;
-}
+#define MI2S_BCLK_RATE			1536000
+#define PCM_BCLK_RATE			1024000
 
 static int msm_snd_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *params)
@@ -33,10 +22,32 @@ static int msm_snd_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	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);
 	u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
 	u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
 	int ret = 0;
 
+	switch (cpu_dai->id) {
+	case PRIMARY_PCM_RX:
+	case PRIMARY_PCM_TX:
+	case QUATERNARY_PCM_RX:
+	case QUATERNARY_PCM_TX:
+		rate->min = 16000;
+		rate->max = 16000;
+		channels->min = 1;
+		channels->max = 1;
+		break;
+	default:
+		rate->min = 48000;
+		rate->max = 48000;
+		channels->min = 1;
+		channels->max = 2;
+		break;
+	}
+
 	ret = snd_soc_dai_get_channel_map(codec_dai,
 				&tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
 	if (ret != 0 && ret != -ENOTSUPP) {
@@ -60,8 +71,54 @@ static int msm_snd_hw_params(struct snd_pcm_substream *substream,
 	return ret;
 }
 
+static int msm_snd_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+	switch (cpu_dai->id) {
+	case PRIMARY_MI2S_RX:
+	case PRIMARY_MI2S_TX:
+		snd_soc_dai_set_sysclk(cpu_dai,
+			Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
+			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);
+		snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS);
+		break;
+	case QUATERNARY_MI2S_RX:
+	case QUATERNARY_MI2S_TX:
+		snd_soc_dai_set_sysclk(cpu_dai,
+			Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT,
+			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);
+		snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS);
+		break;
+	case PRIMARY_PCM_RX:
+	case PRIMARY_PCM_TX:
+		snd_soc_dai_set_sysclk(cpu_dai,
+			Q6AFE_LPASS_CLK_ID_PRI_PCM_IBIT,
+			PCM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);
+		snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS);
+		break;
+	case QUATERNARY_PCM_RX:
+	case QUATERNARY_PCM_TX:
+		snd_soc_dai_set_sysclk(cpu_dai,
+			Q6AFE_LPASS_CLK_ID_QUAD_PCM_IBIT,
+			PCM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);
+		snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS);
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
 static struct snd_soc_ops apq8096_ops = {
 	.hw_params = msm_snd_hw_params,
+	.startup = msm_snd_startup,
 };
 
 static int apq8096_init(struct snd_soc_pcm_runtime *rtd)
@@ -96,7 +153,6 @@ static void apq8096_add_be_ops(struct snd_soc_card *card)
 
 	for_each_card_prelinks(card, i, link) {
 		if (link->no_pcm == 1) {
-			link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
 			link->init = apq8096_init;
 			link->ops = &apq8096_ops;
 		}
-- 
2.21.1