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Commit ff873af2 authored by Liangwei Dong's avatar Liangwei Dong
Browse files

Net: CNSS_SDIO: Add cnss_get_restart_level CNSS API 



export cnss_get_restart_level cnss API for wlan driver
to get current subsystem restart level.

Change-Id: I7e5d9b0055707bbad06b6cd1496723da6c28d4d5
CRs-Fixed: 961579
Signed-off-by: default avatarLiangwei Dong <liangwei@codeaurora.org>
parent 863822f1

drivers/net/wireless/cnss/cnss_sdio.c

+32 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2015-2016, 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
@@ -558,6 +558,37 @@ void cnss_device_crashed(void) 
}

EXPORT_SYMBOL(cnss_device_crashed);



/**

 * cnss_get_restart_level() - cnss get restart level API

 *

 * Wlan sdio function driver uses this API to get the current

 * subsystem restart level.

 *

 * Return: CNSS_RESET_SOC - "SYSTEM", restart system

 *         CNSS_RESET_SUBSYS_COUPLED - "RELATED",restart subsystem

 */

int cnss_get_restart_level(void)

{

	struct cnss_ssr_info *ssr_info;

	int level;



	if (!cnss_pdata)

		return CNSS_RESET_SOC;

	ssr_info = &cnss_pdata->ssr_info;

	if (!ssr_info->subsys)

		return CNSS_RESET_SOC;

	level = subsys_get_restart_level(ssr_info->subsys);

	switch (level) {

	case RESET_SOC:

		return CNSS_RESET_SOC;

	case RESET_SUBSYS_COUPLED:

		return CNSS_RESET_SUBSYS_COUPLED;

	default:

		return CNSS_RESET_SOC;

	}

}

EXPORT_SYMBOL(cnss_get_restart_level);



static int cnss_sdio_wlan_inserted(

				struct sdio_func *func,

				const struct sdio_device_id *id)

include/net/cnss.h

+8 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2016, 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
@@ -189,6 +189,13 @@ extern int cnss_get_ramdump_mem(unsigned long *address, unsigned long *size); 
extern void *cnss_get_virt_ramdump_mem(unsigned long *size);

extern void cnss_schedule_recovery_work(void);



enum {

	CNSS_RESET_SOC = 0,

	CNSS_RESET_SUBSYS_COUPLED,

	CNSS_RESET_LEVEL_MAX

};

extern int cnss_get_restart_level(void);



#ifdef CONFIG_CNSS_SDIO

struct cnss_sdio_wlan_driver {

	const char *name;