Merge "icnss: Add ICNSS utility file" (911e592f) · Commits · e / devices / android_kernel_sony_msm8998

drivers/soc/qcom/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -70,7 +70,7 @@ obj-$(CONFIG_QCOM_WATCHDOG_V2) += watchdog_v2.o
		obj-$(CONFIG_QCOM_COMMON_LOG) += common_log.o
		obj-$(CONFIG_QCOM_IRQ_HELPER) += irq-helper.o
		obj-$(CONFIG_TRACER_PKT) += tracer_pkt.o
		obj-$(CONFIG_ICNSS) += icnss.o wlan_firmware_service_v01.o
		obj-$(CONFIG_ICNSS) += icnss.o wlan_firmware_service_v01.o icnss_utils.o
		obj-$(CONFIG_SOC_BUS) += socinfo.o
		obj-$(CONFIG_QCOM_BUS_SCALING) += msm_bus/
		obj-$(CONFIG_MSM_SERVICE_NOTIFIER) += service-notifier.o

drivers/soc/qcom/icnss_utils.c

0 → 100644

+132 −0

Original line number	Diff line number	Diff line
		/* Copyright (c) 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
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#include <linux/module.h>
		#include <linux/slab.h>

		#define ICNSS_MAX_CH_NUM 45

		static DEFINE_MUTEX(unsafe_channel_list_lock);
		static DEFINE_MUTEX(dfs_nol_info_lock);

		static struct icnss_unsafe_channel_list {
		u16 unsafe_ch_count;
		u16 unsafe_ch_list[ICNSS_MAX_CH_NUM];
		} unsafe_channel_list;

		static struct icnss_dfs_nol_info {
		void *dfs_nol_info;
		u16 dfs_nol_info_len;
		} dfs_nol_info;

		int icnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count)
		{
		mutex_lock(&unsafe_channel_list_lock);
		if ((!unsafe_ch_list) \|\| (ch_count > ICNSS_MAX_CH_NUM)) {
		mutex_unlock(&unsafe_channel_list_lock);
		return -EINVAL;
		}

		unsafe_channel_list.unsafe_ch_count = ch_count;

		if (ch_count != 0) {
		memcpy(
		(char *)unsafe_channel_list.unsafe_ch_list,
		(char )unsafe_ch_list, ch_count sizeof(u16));
		}
		mutex_unlock(&unsafe_channel_list_lock);

		return 0;
		}
		EXPORT_SYMBOL(icnss_set_wlan_unsafe_channel);

		int icnss_get_wlan_unsafe_channel(u16 *unsafe_ch_list,
		u16 *ch_count, u16 buf_len)
		{
		mutex_lock(&unsafe_channel_list_lock);
		if (!unsafe_ch_list \|\| !ch_count) {
		mutex_unlock(&unsafe_channel_list_lock);
		return -EINVAL;
		}

		if (buf_len < (unsafe_channel_list.unsafe_ch_count * sizeof(u16))) {
		mutex_unlock(&unsafe_channel_list_lock);
		return -ENOMEM;
		}

		*ch_count = unsafe_channel_list.unsafe_ch_count;
		memcpy(
		(char *)unsafe_ch_list,
		(char *)unsafe_channel_list.unsafe_ch_list,
		unsafe_channel_list.unsafe_ch_count * sizeof(u16));
		mutex_unlock(&unsafe_channel_list_lock);

		return 0;
		}
		EXPORT_SYMBOL(icnss_get_wlan_unsafe_channel);

		int icnss_wlan_set_dfs_nol(const void *info, u16 info_len)
		{
		void *temp;
		struct icnss_dfs_nol_info *dfs_info;

		mutex_lock(&dfs_nol_info_lock);
		if (!info \|\| !info_len) {
		mutex_unlock(&dfs_nol_info_lock);
		return -EINVAL;
		}

		temp = kmalloc(info_len, GFP_KERNEL);
		if (!temp) {
		mutex_unlock(&dfs_nol_info_lock);
		return -ENOMEM;
		}

		memcpy(temp, info, info_len);
		dfs_info = &dfs_nol_info;
		kfree(dfs_info->dfs_nol_info);

		dfs_info->dfs_nol_info = temp;
		dfs_info->dfs_nol_info_len = info_len;
		mutex_unlock(&dfs_nol_info_lock);

		return 0;
		}
		EXPORT_SYMBOL(icnss_wlan_set_dfs_nol);

		int icnss_wlan_get_dfs_nol(void *info, u16 info_len)
		{
		int len;
		struct icnss_dfs_nol_info *dfs_info;

		mutex_lock(&dfs_nol_info_lock);
		if (!info \|\| !info_len) {
		mutex_unlock(&dfs_nol_info_lock);
		return -EINVAL;
		}

		dfs_info = &dfs_nol_info;

		if (dfs_info->dfs_nol_info == NULL \|\|
		dfs_info->dfs_nol_info_len == 0) {
		mutex_unlock(&dfs_nol_info_lock);
		return -ENOENT;
		}

		len = min(info_len, dfs_info->dfs_nol_info_len);

		memcpy(info, dfs_info->dfs_nol_info, len);
		mutex_unlock(&dfs_nol_info_lock);

		return len;
		}
		EXPORT_SYMBOL(icnss_wlan_get_dfs_nol);

include/soc/qcom/icnss.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -109,5 +109,10 @@ extern int icnss_power_off(struct device *dev);
		extern struct dma_iommu_mapping icnss_smmu_get_mapping(struct device dev);
		extern int icnss_smmu_map(struct device *dev, phys_addr_t paddr,
		uint32_t *iova_addr, size_t size);
		extern int icnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count);
		extern int icnss_get_wlan_unsafe_channel(u16 unsafe_ch_list, u16 ch_count,
		u16 buf_len);
		extern int icnss_wlan_set_dfs_nol(const void *info, u16 info_len);
		extern int icnss_wlan_get_dfs_nol(void *info, u16 info_len);

		#endif /* _ICNSS_WLAN_H_ */