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Date: Tue, 9 May 2023 12:21:59 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: broonie@...nel.org
Cc: perex@...ex.cz, tiwai@...e.com, lgirdwood@...il.com,
ckeepax@...nsource.cirrus.com, kuninori.morimoto.gx@...esas.com,
linux-kernel@...r.kernel.org, pierre-louis.bossart@...ux.intel.com,
alsa-devel@...a-project.org,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 1/4] ASoC: qcom: q6dsp-common: move channel allocation to common
move hdmi/dp channel allocation to a common function
q6dsp_get_channel_allocation() so that we can reuse this across
q6afe and q6apm drivers.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
sound/soc/qcom/qdsp6/q6afe-dai.c | 34 ++++++----------------------
sound/soc/qcom/qdsp6/q6dsp-common.c | 35 +++++++++++++++++++++++++++++
sound/soc/qcom/qdsp6/q6dsp-common.h | 1 +
3 files changed, 43 insertions(+), 27 deletions(-)
diff --git a/sound/soc/qcom/qdsp6/q6afe-dai.c b/sound/soc/qcom/qdsp6/q6afe-dai.c
index 8bb7452b8f18..31e0bad71e95 100644
--- a/sound/soc/qcom/qdsp6/q6afe-dai.c
+++ b/sound/soc/qcom/qdsp6/q6afe-dai.c
@@ -12,6 +12,7 @@
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include "q6dsp-lpass-ports.h"
+#include "q6dsp-common.h"
#include "q6afe.h"
@@ -69,6 +70,7 @@ static int q6hdmi_hw_params(struct snd_pcm_substream *substream,
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;
+ int ret;
hdmi->sample_rate = params_rate(params);
switch (params_format(params)) {
@@ -80,33 +82,11 @@ static int q6hdmi_hw_params(struct snd_pcm_substream *substream,
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;
- }
+ ret = q6dsp_get_channel_allocation(channels);
+ if (ret < 0)
+ return ret;
+
+ hdmi->channel_allocation = (u16) ret;
return 0;
}
diff --git a/sound/soc/qcom/qdsp6/q6dsp-common.c b/sound/soc/qcom/qdsp6/q6dsp-common.c
index d393003492c7..95585dea2b36 100644
--- a/sound/soc/qcom/qdsp6/q6dsp-common.c
+++ b/sound/soc/qcom/qdsp6/q6dsp-common.c
@@ -63,4 +63,39 @@ int q6dsp_map_channels(u8 ch_map[PCM_MAX_NUM_CHANNEL], int ch)
return 0;
}
EXPORT_SYMBOL_GPL(q6dsp_map_channels);
+
+int q6dsp_get_channel_allocation(int channels)
+{
+ int channel_allocation;
+
+ /* HDMI spec CEA-861-E: Table 28 Audio InfoFrame Data Byte 4 */
+ switch (channels) {
+ case 2:
+ channel_allocation = 0;
+ break;
+ case 3:
+ channel_allocation = 0x02;
+ break;
+ case 4:
+ channel_allocation = 0x06;
+ break;
+ case 5:
+ channel_allocation = 0x0A;
+ break;
+ case 6:
+ channel_allocation = 0x0B;
+ break;
+ case 7:
+ channel_allocation = 0x12;
+ break;
+ case 8:
+ channel_allocation = 0x13;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return channel_allocation;
+}
+EXPORT_SYMBOL_GPL(q6dsp_get_channel_allocation);
MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/qcom/qdsp6/q6dsp-common.h b/sound/soc/qcom/qdsp6/q6dsp-common.h
index 01094d108b8a..9e704db5f604 100644
--- a/sound/soc/qcom/qdsp6/q6dsp-common.h
+++ b/sound/soc/qcom/qdsp6/q6dsp-common.h
@@ -20,5 +20,6 @@
#define PCM_CHANNELS 10 /* Top surround channel. */
int q6dsp_map_channels(u8 ch_map[PCM_MAX_NUM_CHANNEL], int ch);
+int q6dsp_get_channel_allocation(int channels);
#endif /* __Q6DSP_COMMON_H__ */
--
2.21.0
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