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Commit 581b86b7 authored by Anand Kumar's avatar Anand Kumar Committed by Hardik Kantilal Patel
Browse files

wcnss: Dump WCNSS registers during SSR Timeout 



Dump required WCNSS registers which help to debug WCNSS
failure during SSR timeout callback.

Change-Id: Ie8f97043266fbc83d76c85449825539a14801f13
CRs-Fixed: 1045584
Signed-off-by: default avatarAnand Kumar <anandkumar@codeaurora.org>
parent 1446cd5f

drivers/net/wireless/wcnss/wcnss_wlan.c

+33 −7
Original line number Diff line number Diff line
@@ -589,13 +589,12 @@ void wcnss_pronto_is_a2xb_bus_stall(void *tst_addr, u32 fifo_mask, char *type) 
	}

}



/* Log pronto debug registers before sending reset interrupt */

/* Log pronto debug registers during SSR Timeout CB */

void wcnss_pronto_log_debug_regs(void)

{

	void __iomem *reg_addr, *tst_addr, *tst_ctrl_addr;

	u32 reg = 0, reg2 = 0, reg3 = 0, reg4 = 0;





	reg_addr = penv->msm_wcnss_base + PRONTO_PMU_SPARE_OFFSET;

	reg = readl_relaxed(reg_addr);

	pr_err("PRONTO_PMU_SPARE %08x\n", reg);
@@ -799,6 +798,33 @@ void wcnss_pronto_log_debug_regs(void) 
	reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_AHB_CBCR_OFFSET;

	reg3 = readl_relaxed(reg_addr);

	pr_err("PMU_WLAN_AHB_CBCR %08x\n", reg3);

}

EXPORT_SYMBOL(wcnss_pronto_log_debug_regs);



/* Log pronto debug registers before sending reset interrupt */

void wcnss_pronto_dump_regs(void)

{

	void __iomem *reg_addr;

	u32 reg = 0, reg2 = 0, reg3 = 0, reg4 = 0;



	if (!penv || !penv->triggered || !penv->msm_wcnss_base) {

		pr_info(DEVICE " WCNSS driver is not triggered by userspace\n");

		return;

	}



	wcnss_pronto_log_debug_regs();



	reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_BCR_OFFSET;

	reg = readl_relaxed(reg_addr);



	reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_GDSCR_OFFSET;

	reg2 = readl_relaxed(reg_addr);



	reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_AHB_CBCR_OFFSET;

	reg3 = readl_relaxed(reg_addr);



	reg_addr = penv->msm_wcnss_base + PRONTO_PMU_CPU_AHB_CMD_RCGR_OFFSET;

	reg4 = readl_relaxed(reg_addr);



	msleep(50);
@@ -878,7 +904,7 @@ void wcnss_pronto_log_debug_regs(void) 
	reg = readl_relaxed(penv->alarms_tactl);

	pr_err("ALARMS_TACTL %08x\n", reg);

}

EXPORT_SYMBOL(wcnss_pronto_log_debug_regs);

EXPORT_SYMBOL(wcnss_pronto_dump_regs);



#ifdef CONFIG_WCNSS_REGISTER_DUMP_ON_BITE
@@ -1095,7 +1121,7 @@ void wcnss_log_debug_regs_on_bite(void) 
		pr_debug("wcnss: clock frequency is: %luHz\n", clk_rate);



		if (clk_rate) {

			wcnss_pronto_log_debug_regs();

			wcnss_pronto_dump_regs();

			if (wcnss_get_mux_control())

				wcnss_log_iris_regs();

		} else {
@@ -1115,7 +1141,7 @@ void wcnss_reset_fiq(bool clk_chk_en) 
		if (clk_chk_en) {

			wcnss_log_debug_regs_on_bite();

		} else {

			wcnss_pronto_log_debug_regs();

			wcnss_pronto_dump_regs();

			if (wcnss_get_mux_control())

				wcnss_log_iris_regs();

		}
@@ -3161,7 +3187,7 @@ wcnss_trigger_config(struct platform_device *pdev) 
			dev_err(&pdev->dev, "Peripheral Loader failed on WCNSS.\n");

			ret = PTR_ERR(penv->pil);

			wcnss_disable_pc_add_req();

			wcnss_pronto_log_debug_regs();

			wcnss_pronto_dump_regs();

		}

	} while (pil_retry++ < WCNSS_MAX_PIL_RETRY && IS_ERR(penv->pil));
@@ -3413,7 +3439,7 @@ static int wcnss_notif_cb(struct notifier_block *this, unsigned long code, 
		if (pdev && pwlanconfig)

			wcnss_wlan_power(&pdev->dev, pwlanconfig,

					WCNSS_WLAN_SWITCH_OFF, NULL);

		wcnss_pronto_log_debug_regs();

		wcnss_pronto_dump_regs();

		wcnss_disable_pc_remove_req();

	} else if (SUBSYS_BEFORE_SHUTDOWN == code) {

		wcnss_disable_pc_add_req();

include/linux/wcnss_wlan.h

+2 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2011-2016, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -124,6 +124,7 @@ void wcnss_suspend_notify(void); 
void wcnss_resume_notify(void);

void wcnss_riva_log_debug_regs(void);

void wcnss_pronto_log_debug_regs(void);

void wcnss_pronto_dump_regs(void);

int wcnss_is_hw_pronto_ver3(void);

int wcnss_device_ready(void);

bool wcnss_cbc_complete(void);