| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20231213123556.20469-1-lujianhua000@gmail.com>
Date: Wed, 13 Dec 2023 20:35:53 +0800
From: Jianhua Lu <lujianhua000@...il.com>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Banajit Goswami <bgoswami@...cinc.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc: alsa-devel@...a-project.org, linux-sound@...r.kernel.org,
linux-kernel@...r.kernel.org, Jianhua Lu <lujianhua000@...il.com>
Subject: [PATCH v3 1/4] ASoC: qcom: common: Add qcom_snd_tdm_hw_params function
Add qcom TDM setup function to support TDM ports for qcom platform.
Signed-off-by: Jianhua Lu <lujianhua000@...il.com>
---
Changes in v3:
1. new patch
2. split qcom_snd_tdm_hw_params function from [Patch v2 1/2] to here
sound/soc/qcom/common.c | 69 +++++++++++++++++++++++++++++++++++++++++
sound/soc/qcom/common.h | 2 ++
2 files changed, 71 insertions(+)
diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c
index 483bbf53a541..c0ab201416ef 100644
--- a/sound/soc/qcom/common.c
+++ b/sound/soc/qcom/common.c
@@ -5,6 +5,7 @@
#include <dt-bindings/sound/qcom,q6afe.h>
#include <linux/module.h>
#include <sound/jack.h>
+#include <sound/pcm_params.h>
#include <linux/input-event-codes.h>
#include "common.h"
@@ -13,6 +14,8 @@ static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
SND_SOC_DAPM_MIC("Mic Jack", NULL),
};
+static unsigned int tdm_slot_offset[8] = { 0, 4, 8, 12, 16, 20, 24, 28 };
+
int qcom_snd_parse_of(struct snd_soc_card *card)
{
struct device_node *np;
@@ -239,4 +242,70 @@ int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
return 0;
}
EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);
+
+int qcom_snd_tdm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+ int slots = ARRAY_SIZE(tdm_slot_offset);
+ int channels, slot_width, tx_mask, rx_mask;
+ int ret;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ slot_width = 16;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ slot_width = 24;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ slot_width = 32;
+ break;
+ default:
+ dev_err(rtd->dev, "%s: invalid param format 0x%x\n", __func__,
+ params_format(params));
+ return -EINVAL;
+ }
+
+ channels = params_channels(params);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ tx_mask = 0;
+ rx_mask = BIT(channels) - 1;
+ ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, slots, slot_width);
+ if (ret < 0) {
+ dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL, channels,
+ tdm_slot_offset);
+ if (ret < 0) {
+ dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
+ __func__, ret);
+ return ret;
+ }
+ } else {
+ tx_mask = 0xf;
+ rx_mask = 0;
+ ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, slots, slot_width);
+ if (ret < 0) {
+ dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
+ tdm_slot_offset, 0, NULL);
+ if (ret < 0) {
+ dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
+ __func__, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_snd_tdm_hw_params);
MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/qcom/common.h b/sound/soc/qcom/common.h
index d7f80ee5ae26..b583110f556e 100644
--- a/sound/soc/qcom/common.h
+++ b/sound/soc/qcom/common.h
@@ -9,5 +9,7 @@
int qcom_snd_parse_of(struct snd_soc_card *card);
int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
struct snd_soc_jack *jack, bool *jack_setup);
+int qcom_snd_tdm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params);
#endif
--
2.41.0
Powered by blists - more mailing lists