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Commit 3d90fd3f authored by Leo Chang's avatar Leo Chang
Browse files

wlan: Store avoid channel list 



Store avoid channel list into recoverable location.
If Softap mode detects current channel is not safe to use,
WLAN kernel module will be restarted.
Then WLAN kernel module internal storage will lost
unsafe channel information.
To avoid start softap with unsafe channel, channel information
should be stored in static location.

Change-Id: I5a6d7ab7314936d7bbaaf7a005e58179a4dc0613
CRs-fixed: 576020
Signed-off-by: default avatarLeo Chang <leochang@codeaurora.org>
parent 84dce0d6

drivers/net/wireless/wcnss/wcnss_wlan.c

+33 −0
Original line number Diff line number Diff line
@@ -171,6 +171,8 @@ static DEFINE_SPINLOCK(reg_spinlock); 
#define	WCNSS_BUILD_VER_REQ           (WCNSS_CTRL_MSG_START + 9)

#define	WCNSS_BUILD_VER_RSP           (WCNSS_CTRL_MSG_START + 10)



/* max 20mhz channel count */

#define WCNSS_MAX_CH_NUM			45



#define VALID_VERSION(version) \

	((strncmp(version, "INVALID", WCNSS_VERSION_LEN)) ? 1 : 0)
@@ -355,6 +357,8 @@ static struct { 
	struct qpnp_adc_tm_btm_param vbat_monitor_params;

	struct qpnp_adc_tm_chip *adc_tm_dev;

	struct mutex vbat_monitor_mutex;

	u16 unsafe_ch_count;

	u16 unsafe_ch_list[WCNSS_MAX_CH_NUM];

} *penv = NULL;



static ssize_t wcnss_serial_number_show(struct device *dev,
@@ -1133,6 +1137,35 @@ u32 wcnss_get_wlan_rx_buff_count(void) 
}

EXPORT_SYMBOL(wcnss_get_wlan_rx_buff_count);



int wcnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count)

{

	if (penv && unsafe_ch_list &&

		(ch_count <= WCNSS_MAX_CH_NUM)) {

		memcpy((char *)penv->unsafe_ch_list,

			(char *)unsafe_ch_list, ch_count * sizeof(u16));

		penv->unsafe_ch_count = ch_count;

		return 0;

	} else

		return -ENODEV;

}

EXPORT_SYMBOL(wcnss_set_wlan_unsafe_channel);



int wcnss_get_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 buffer_size,

					u16 *ch_count)

{

	if (penv) {

		if (buffer_size < penv->unsafe_ch_count * sizeof(u16))

			return -ENODEV;

		memcpy((char *)unsafe_ch_list,

			(char *)penv->unsafe_ch_list,

			penv->unsafe_ch_count * sizeof(u16));

		*ch_count = penv->unsafe_ch_count;

		return 0;

	} else

		return -ENODEV;

}

EXPORT_SYMBOL(wcnss_get_wlan_unsafe_channel);



static int wcnss_smd_tx(void *data, int len)

{

	int ret = 0;

include/linux/wcnss_wlan.h

+5 −1
Original line number Diff line number Diff line
@@ -86,7 +86,11 @@ static inline void wcnss_log_debug_regs_on_bite(void) 
{

}

#endif



int wcnss_set_wlan_unsafe_channel(

				u16 *unsafe_ch_list, u16 ch_count);

int wcnss_get_wlan_unsafe_channel(

				u16 *unsafe_ch_list, u16 buffer_size,

				u16 *ch_count);

#define wcnss_wlan_get_drvdata(dev) dev_get_drvdata(dev)

#define wcnss_wlan_set_drvdata(dev, data) dev_set_drvdata((dev), (data))

/* WLAN driver uses these names */