30765fcae3
Currently, for any WDSP errors, the driver collects the debug dumps/information based on trigger from userspace. This is protected under CONFIG_DEBUG_FS and should not be run unless stress tests are executed and this functionality is explicitly enabled since performing debug dumps could possible leave the WDSP in bad state. Add debug node to control dumping debug information and not rely only on CONFIG_DEBUG_FS To enable debug dumps: echo 1 > /sys/kernel/debug/wdsp0/debug_dump_enable To disable debug dumps: echo 0 > /sys/kernel/debug/wdsp0/debug_dump_enable Change-Id: I67d8781839d9caee16e6bf6a5befd9010ccaafc0 Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org> Signed-off-by: Xiaoyu Ye <benyxy@codeaurora.org>
126 lignes
2.8 KiB
C
126 lignes
2.8 KiB
C
/*
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* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __WCD934X_DSP_CNTL_H__
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#define __WCD934X_DSP_CNTL_H__
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#include <linux/miscdevice.h>
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#include <sound/soc.h>
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#include <sound/wcd-dsp-mgr.h>
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enum cdc_ssr_event {
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WCD_CDC_DOWN_EVENT,
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WCD_CDC_UP_EVENT,
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};
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struct wcd_dsp_cdc_cb {
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/* Callback to enable codec clock */
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int (*cdc_clk_en)(struct snd_soc_codec *, bool);
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/* Callback to vote and unvote for SVS2 mode */
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void (*cdc_vote_svs)(struct snd_soc_codec *, bool);
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};
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struct wcd_dsp_irq_info {
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/* IPC interrupt */
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int cpe_ipc1_irq;
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/* CPE error summary interrupt */
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int cpe_err_irq;
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/*
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* Bit mask to indicate which of the
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* error interrupts are to be considered
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* as fatal.
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*/
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u16 fatal_irqs;
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};
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struct wcd_dsp_params {
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struct wcd_dsp_cdc_cb *cb;
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struct wcd_dsp_irq_info irqs;
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/* Rate at which the codec clock operates */
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u32 clk_rate;
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/*
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* Represents the dsp instance, will be used
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* to create sysfs and debugfs entries with
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* directory wdsp<dsp-instance>
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*/
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u32 dsp_instance;
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};
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struct wdsp_ssr_entry {
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u8 offline;
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u8 offline_change;
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wait_queue_head_t offline_poll_wait;
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struct snd_info_entry *entry;
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};
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struct wcd_dsp_cntl {
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/* Handle to codec */
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struct snd_soc_codec *codec;
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/* Clk rate of the codec clock */
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u32 clk_rate;
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/* Callbacks to codec driver */
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const struct wcd_dsp_cdc_cb *cdc_cb;
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/* Completion to indicate WDSP boot done */
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struct completion boot_complete;
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struct wcd_dsp_irq_info irqs;
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u32 dsp_instance;
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/* Sysfs entries related */
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int boot_reqs;
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struct kobject wcd_kobj;
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/* Debugfs related */
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struct dentry *entry;
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u32 debug_mode;
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bool ramdump_enable;
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bool dbg_dmp_enable;
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/* WDSP manager drivers data */
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struct device *m_dev;
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struct wdsp_mgr_ops *m_ops;
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/* clk related */
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struct mutex clk_mutex;
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bool is_clk_enabled;
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/* Keep track of WDSP boot status */
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bool is_wdsp_booted;
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/* SSR related */
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struct wdsp_ssr_entry ssr_entry;
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struct mutex ssr_mutex;
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/* Misc device related */
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char miscdev_name[256];
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struct miscdevice miscdev;
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#ifdef CONFIG_DEBUG_FS
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/* Debug dump related */
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atomic_t err_irq_flag;
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#endif
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};
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void wcd_dsp_cntl_init(struct snd_soc_codec *codec,
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struct wcd_dsp_params *params,
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struct wcd_dsp_cntl **cntl);
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void wcd_dsp_cntl_deinit(struct wcd_dsp_cntl **cntl);
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int wcd_dsp_ssr_event(struct wcd_dsp_cntl *cntl, enum cdc_ssr_event event);
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#endif /* end __WCD_DSP_CONTROL_H__ */
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