Merge "ASoC: msm: Add debug Kconfig for LPASS audio driver" (f61d961c) · Commits · e / devices / android_kernel_xiaomi_markw

sound/soc/msm/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,14 @@ config SND_SOC_QDSP6V2
		audio drivers. This includes q6asm, q6adm,
		q6afe interfaces to DSP using apr.

		config SND_SOC_QDSP_DEBUG
		bool "QDSP Audio Driver Debug Feature"
		help
		Configuration to enable debugging utilities for
		QDSP6 based audio drivers. One debugging utility
		is inducing kernel panic upon encountering critical
		errors from DSP audio modules

		config DOLBY_DAP
		bool "Enable Dolby DAP"
		depends on SND_SOC_MSM_QDSP6V2_INTF

sound/soc/msm/qdsp6v2/adsp_err.c

+56 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,8 @@
		*/

		#include <linux/errno.h>
		#include <linux/uaccess.h>
		#include <linux/debugfs.h>
		#include <sound/apr_audio-v2.h>


		@@ -61,6 +63,33 @@
		/* Unexpected error code. */
		#define ADSP_ERR_MAX_STR "ADSP_ERR_MAX"

		#ifdef CONFIG_SND_SOC_QDSP_DEBUG
		static bool adsp_err_panic;

		#ifdef CONFIG_DEBUG_FS
		static struct dentry *debugfs_adsp_err;

		static ssize_t adsp_err_debug_write(struct file *filp,
		const char __user ubuf, size_t cnt, loff_t ppos)
		{
		char cmd;

		if (copy_from_user(&cmd, ubuf, 1))
		return -EFAULT;

		if (cmd == '0')
		adsp_err_panic = false;
		else
		adsp_err_panic = true;

		return cnt;
		}

		static const struct file_operations adsp_err_debug_ops = {
		.write = adsp_err_debug_write,
		};
		#endif
		#endif

		struct adsp_err_code {
		int lnx_err_code;
		@@ -94,8 +123,20 @@ static struct adsp_err_code adsp_err_code_info[ADSP_ERR_MAX+1] = {
		{ -EADV, ADSP_ERR_MAX_STR},
		};

		#ifdef CONFIG_SND_SOC_QDSP_DEBUG
		static inline void adsp_err_check_panic(u32 adsp_error)
		{
		if (adsp_err_panic && adsp_error != ADSP_EALREADY)
		panic("%s: encounter adsp_err=0x%x\n", __func__, adsp_error);
		}
		#else
		static inline void adsp_err_check_panic(u32 adsp_error) {}
		#endif

		int adsp_err_get_lnx_err_code(u32 adsp_error)
		{
		adsp_err_check_panic(adsp_error);

		if (adsp_error > ADSP_ERR_MAX)
		return adsp_err_code_info[ADSP_ERR_MAX].lnx_err_code;
		else
		@@ -109,3 +150,18 @@ char *adsp_err_get_err_str(u32 adsp_error)
		else
		return adsp_err_code_info[adsp_error].adsp_err_str;
		}

		#if defined(CONFIG_SND_SOC_QDSP_DEBUG) && defined(CONFIG_DEBUG_FS)
		static int __init adsp_err_init(void)
		{


		debugfs_adsp_err = debugfs_create_file("msm_adsp_audio_debug",
		S_IFREG \| S_IRUGO, NULL, NULL,
		&adsp_err_debug_ops);

		return 0;
		}

		device_initcall(adsp_err_init);
		#endif