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asoc: Expose a sysfs node to notify device open/close.

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Add support in kona machine driver to expose a sysfs node.
Userspace uses this sysfs node to notify machine driver
on which dai-link ( pcm id) is opened/closed. This information
regarding device open/close is then compared against shutdown/
startup dai_link ops. If there is a mismatch we conclude
that there has been a userspace service crash and we
issue a close all session command to dsp and also clear
all the dma buffers which were allocated by the service.

Change-Id: I4fc13adf8cc527c87b822a3b189d4ff081539a3c
Signed-off-by: Ashish Jain <ashishj@codeaurora.org>
This commit is contained in:
Ashish Jain
2019-09-12 09:26:46 +05:30
committed by Gerrit - the friendly Code Review server
parent 4adf995c01
commit de3e09d08d
6 changed files with 325 additions and 58 deletions
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57
asoc/kona.c
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@@ -34,6 +34,7 @@
#include "codecs/bolero/wsa-macro.h"
#include "kona-port-config.h"
#include "msm-audio-defs.h"
#include "msm_common.h"
#define DRV_NAME "kona-asoc-snd"
#define __CHIPSET__ "KONA "
@@ -53,6 +54,7 @@
struct msm_asoc_mach_data {
struct snd_info_entry *codec_root;
struct msm_common_pdata *common_pdata;
int lito_v2_enabled;
struct device_node *dmic01_gpio_p; /* used by pinctrl API */
struct device_node *dmic23_gpio_p; /* used by pinctrl API */
@@ -413,6 +415,11 @@ static int msm_wcn_init(struct snd_soc_pcm_runtime *rtd)
tx_ch, ARRAY_SIZE(rx_ch), rx_ch);
}
static struct snd_soc_ops msm_common_be_ops = {
.startup = msm_common_snd_startup,
.shutdown = msm_common_snd_shutdown,
};
/* Digital audio interface glue - connects codec <---> CPU */
static struct snd_soc_dai_link msm_common_dai_links[] = {
{
@@ -426,6 +433,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
.codec_dai_name = "wsa_macro_rx1",
.codec_name = "bolero_codec",
.init = &msm_int_audrx_init,
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -441,6 +449,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "wsa_macro_rx_mix",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -456,6 +465,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "wsa_macro_echo",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -471,6 +481,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "rx_macro_rx1",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -486,6 +497,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "rx_macro_rx2",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -501,6 +513,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "rx_macro_rx3",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -516,6 +529,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "rx_macro_rx4",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -531,6 +545,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "tx_macro_tx1",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -546,6 +561,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "tx_macro_tx2",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -561,6 +577,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "va_macro_tx1",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -576,6 +593,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "va_macro_tx2",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -591,6 +609,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.codec_dai_name = "va_macro_tx3",
.codec_name = "bolero_codec",
.ops = &msm_common_be_ops,
.be_hw_params_fixup = msm_be_hw_params_fixup,
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -605,6 +624,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
.trigger = {SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST},
.codec_name = "btfmslim_slave",
.ops = &msm_common_be_ops,
.codec_dai_name = "btfm_bt_sco_a2dp_slim_rx",
.ignore_suspend = 1,
/* this dainlink has playback support */
@@ -619,6 +639,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
.trigger = {SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST},
.codec_name = "btfmslim_slave",
.ops = &msm_common_be_ops,
.codec_dai_name = "btfm_bt_sco_slim_tx",
.ignore_suspend = 1,
.ignore_pmdown_time = 1,
@@ -636,6 +657,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.ignore_pmdown_time = 1,
.ignore_suspend = 1,
.ops = &msm_common_be_ops,
},
{
.name = LPASS_BE_USB_AUDIO_RX,
@@ -649,6 +671,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
SND_SOC_DPCM_TRIGGER_POST},
.ignore_pmdown_time = 1,
.ignore_suspend = 1,
.ops = &msm_common_be_ops,
},
{
.name = LPASS_BE_USB_AUDIO_TX,
@@ -661,6 +684,7 @@ static struct snd_soc_dai_link msm_common_dai_links[] = {
.trigger = {SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST},
.ignore_suspend = 1,
.ops = &msm_common_be_ops,
},
};
@@ -1346,6 +1370,27 @@ static int msm_audio_ssr_register(struct device *dev)
return ret;
}
struct msm_common_pdata *msm_common_get_pdata(struct snd_soc_card *card)
{
struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
if (!pdata)
return NULL;
return pdata->common_pdata;
}
void msm_common_set_pdata(struct snd_soc_card *card,
struct msm_common_pdata *common_pdata)
{
struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
if (!pdata)
return;
pdata->common_pdata = common_pdata;
}
static int msm_asoc_machine_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = NULL;
@@ -1415,6 +1460,8 @@ static int msm_asoc_machine_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "%s: Sound card %s registered\n",
__func__, card->name);
msm_common_snd_init(pdev, card);
pdata->hph_en1_gpio_p = of_parse_phandle(pdev->dev.of_node,
"qcom,hph-en1-gpio", 0);
if (!pdata->hph_en1_gpio_p) {
@@ -1510,6 +1557,16 @@ err:
static int msm_asoc_machine_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct msm_asoc_mach_data *pdata = NULL;
struct msm_common_pdata *common_pdata = NULL;
if (card)
pdata = snd_soc_card_get_drvdata(card);
if (pdata)
common_pdata = pdata->common_pdata;
msm_common_snd_deinit(common_pdata);
snd_event_master_deregister(&pdev->dev);
snd_soc_unregister_card(card);