dhd_cfg80211.c - third_party/bcmdhd - Git at Google

 /*
  * Linux cfg80211 driver - Dongle Host Driver (DHD) related
  *
  * Copyright 1999-2016, Broadcom Corporation
  * All rights reserved,
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *    1. Redistributions of source code must retain the above copyright notice,
  *       this list of conditions and the following disclaimer.
  *    2. Redistributions in binary form must reproduce the above copyright notice,
  *       this list of conditions and the following disclaimer in the documentation
  *       and/or other materials provided with the distribution.
  *
  * This software is provided by the copyright holder "as is" and any express or
  * implied warranties, including, but not limited to, the implied warranties of
  * merchantability and fitness for a particular purpose are disclaimed. In no event
  * shall copyright holder be liable for any direct, indirect, incidental, special,
  * exemplary, or consequential damages (including, but not limited to, procurement
  * of substitute goods or services; loss of use, data, or profits; or business
  * interruption) however caused and on any theory of liability, whether in
  * contract, strict liability, or tort (including negligence or otherwise) arising
  * in any way out of the use of this software, even if advised of the possibility
  * of such damage
  *
  *
  * <<Broadcom-WL-IPTag/Open:>>
  *
  * $Id: dhd_cfg80211.c 591285 2015-10-07 11:56:29Z $
  */

 #include <linux/vmalloc.h>
 #include <net/rtnetlink.h>

 #include <bcmutils.h>
 #include <wldev_common.h>
 #ifdef WL_CFG80211_V1
 #include <wl_cfg80211_v1.h>
 #else
 #include <wl_cfg80211.h>
 #endif /* WL_CFG80211_V1 */
 #include <dhd_cfg80211.h>

 #ifdef PKT_FILTER_SUPPORT
 #include <dngl_stats.h>
 #include <dhd.h>
 #endif

 #ifdef WL_CFG80211_V1
 extern struct bcm_cfg80211 *g_bcm_cfg;
 #endif /* WL_CFG80211_V1 */

 #ifdef PKT_FILTER_SUPPORT
 extern uint dhd_pkt_filter_enable;
 extern uint dhd_master_mode;
 extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode);
 #endif

 static int dhd_dongle_up = FALSE;

 #include <dngl_stats.h>
 #include <dhd.h>
 #include <dhdioctl.h>
 #include <wlioctl.h>
 #include <brcm_nl80211.h>
 #include <dhd_cfg80211.h>

 static s32 wl_dongle_up(struct net_device *ndev);
 static s32 wl_dongle_down(struct net_device *ndev);

 /**
  * Function implementations
  */

 s32 dhd_cfg80211_init(struct bcm_cfg80211 *cfg)
 {
 	dhd_dongle_up = FALSE;
 	return 0;
 }

 s32 dhd_cfg80211_deinit(struct bcm_cfg80211 *cfg)
 {
 	dhd_dongle_up = FALSE;
 	return 0;
 }

 s32 dhd_cfg80211_down(struct bcm_cfg80211 *cfg)
 {
 	struct net_device *ndev;
 	s32 err = 0;

 	WL_TRACE(("In\n"));
 	if (!dhd_dongle_up) {
 		WL_ERR(("Dongle is already down\n"));
 		return err;
 	}

 	ndev = bcmcfg_to_prmry_ndev(cfg);
 	wl_dongle_down(ndev);
 	dhd_dongle_up = FALSE;
 	return 0;
 }

 s32 dhd_cfg80211_set_p2p_info(struct bcm_cfg80211 *cfg, int val)
 {
 	dhd_pub_t *dhd =  (dhd_pub_t *)(cfg->pub);
 	dhd->op_mode |= val;
 	WL_ERR(("Set : op_mode=0x%04x\n", dhd->op_mode));
 #ifdef ARP_OFFLOAD_SUPPORT
 	if (dhd->arp_version == 1) {
 		/* IF P2P is enabled, disable arpoe */
 		dhd_arp_offload_set(dhd, 0);
 		dhd_arp_offload_enable(dhd, false);
 	}
 #endif /* ARP_OFFLOAD_SUPPORT */

 	return 0;
 }

 s32 dhd_cfg80211_clean_p2p_info(struct bcm_cfg80211 *cfg)
 {
 	dhd_pub_t *dhd =  (dhd_pub_t *)(cfg->pub);
 	dhd->op_mode &= ~(DHD_FLAG_P2P_GC_MODE | DHD_FLAG_P2P_GO_MODE);
 	WL_ERR(("Clean : op_mode=0x%04x\n", dhd->op_mode));

 #ifdef ARP_OFFLOAD_SUPPORT
 	if (dhd->arp_version == 1) {
 		/* IF P2P is disabled, enable arpoe back for STA mode. */
 		dhd_arp_offload_set(dhd, dhd_arp_mode);
 		dhd_arp_offload_enable(dhd, true);
 	}
 #endif /* ARP_OFFLOAD_SUPPORT */

 	return 0;
 }

 #ifdef WL_CFG80211_V1
 struct net_device* wl_cfg80211_allocate_if(struct bcm_cfg80211 *cfg, int ifidx, char *name,
 	uint8 *mac, uint8 bssidx, char *dngl_name)
 #else
 struct net_device* wl_cfg80211_allocate_if(struct bcm_cfg80211 *cfg, int ifidx, const char *name,
 	uint8 *mac, uint8 bssidx, const char *dngl_name)
 #endif /* WL_CFG80211_V1 */
 {
 	return dhd_allocate_if(cfg->pub, ifidx, name, mac, bssidx, FALSE, dngl_name);
 }

 #ifdef WL_CFG80211_V1
 int wl_cfg80211_register_if(struct bcm_cfg80211 *cfg, int ifidx, struct net_device* ndev)
 {
 	return dhd_register_if(cfg->pub, ifidx, FALSE);
 }

 int wl_cfg80211_remove_if(struct bcm_cfg80211 *cfg, int ifidx, struct net_device* ndev)
 {
 	return dhd_remove_if(cfg->pub, ifidx, FALSE);
 }
 #else
 int wl_cfg80211_register_if(struct bcm_cfg80211 *cfg,
 	int ifidx, struct net_device* ndev, bool rtnl_lock_reqd)
 {
 	return dhd_register_if(cfg->pub, ifidx, rtnl_lock_reqd);
 }

 int wl_cfg80211_remove_if(struct bcm_cfg80211 *cfg,
 	int ifidx, struct net_device* ndev, bool rtnl_lock_reqd)
 {
 	return dhd_remove_if(cfg->pub, ifidx, rtnl_lock_reqd);
 }
 #endif /* WL_CFG80211_V1 */

 struct net_device * dhd_cfg80211_netdev_free(struct net_device *ndev)
 {
 	if (ndev) {
 		if (ndev->ieee80211_ptr) {
 			kfree(ndev->ieee80211_ptr);
 			ndev->ieee80211_ptr = NULL;
 		}
 		free_netdev(ndev);
 		return NULL;
 	}

 	return ndev;
 }

 void dhd_netdev_free(struct net_device *ndev)
 {
 #ifdef WL_CFG80211
 	ndev = dhd_cfg80211_netdev_free(ndev);
 #endif
 	if (ndev)
 		free_netdev(ndev);
 }

 static s32
 wl_dongle_up(struct net_device *ndev)
 {
 	s32 err = 0;
 	u32 up = 0;

 	err = wldev_ioctl(ndev, WLC_UP, &up, sizeof(up), true);
 	if (unlikely(err)) {
 		WL_ERR(("WLC_UP error (%d)\n", err));
 	}
 	return err;
 }

 static s32
 wl_dongle_down(struct net_device *ndev)
 {
 	s32 err = 0;
 	u32 down = 0;

 	err = wldev_ioctl(ndev, WLC_DOWN, &down, sizeof(down), true);
 	if (unlikely(err)) {
 		WL_ERR(("WLC_DOWN error (%d)\n", err));
 	}
 	return err;
 }


 s32 dhd_config_dongle(struct bcm_cfg80211 *cfg)
 {
 #ifndef DHD_SDALIGN
 #define DHD_SDALIGN	32
 #endif
 	struct net_device *ndev;
 	s32 err = 0;

 	WL_TRACE(("In\n"));
 	if (dhd_dongle_up) {
 		WL_ERR(("Dongle is already up\n"));
 		return err;
 	}

 	ndev = bcmcfg_to_prmry_ndev(cfg);

 	err = wl_dongle_up(ndev);
 	if (unlikely(err)) {
 		WL_ERR(("wl_dongle_up failed\n"));
 		goto default_conf_out;
 	}
 	dhd_dongle_up = true;

 default_conf_out:

 	return err;

 }

 int dhd_cfgvendor_priv_string_handler(struct bcm_cfg80211 *cfg, struct wireless_dev *wdev,
 	const struct bcm_nlmsg_hdr *nlioc, void *buf, int ifindex)
 {
 	dhd_pub_t *dhd;
 	dhd_ioctl_t ioc = { 0 };
 	int ret = 0, err = 0;
 	int8 index;
 	struct net_device *ndev;

 	WL_TRACE(("entry: cmd = %d\n", nlioc->cmd));

 	dhd = cfg->pub;
 	DHD_OS_WAKE_LOCK(dhd);

 	/* send to dongle only if we are not waiting for reload already */
 	if (dhd->hang_was_sent) {
 		WL_ERR(("HANG was sent up earlier\n"));
 		DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(dhd, DHD_EVENT_TIMEOUT_MS);
 		DHD_OS_WAKE_UNLOCK(dhd);
 		return OSL_ERROR(BCME_DONGLE_DOWN);
 	}

 	index = dhd_ifindex2idx(dhd->info, ifindex);
 	if (index == DHD_BAD_IF) {
 		ndev = wdev_to_wlc_ndev(wdev, cfg);
 		index = dhd_net2idx(dhd->info, ndev);
 		if (index == DHD_BAD_IF) {
 			WL_ERR(("Bad ifidx %d, wdev:%p\n", ifindex, wdev));
 			ret = BCME_ERROR;
 			goto done;
 		}
 	}

 	ioc.cmd = nlioc->cmd;
 	ioc.len = nlioc->len;
 	ioc.set = nlioc->set;
 	ioc.driver = nlioc->magic;
 	err = dhd_ioctl_process(dhd, index, &ioc, buf);
 	if (err) {
 		ret = OSL_ERROR(err);
 		ndev = dhd_idx2net(dhd, index);
 		if(ndev && (ndev->flags & IFF_UP))
 			WL_DBG(("cmd %d return err %d on %s, ret %d\n",
 					nlioc->cmd, err, ndev->name, ret));
 		goto done;
 	}

 done:
 	DHD_OS_WAKE_UNLOCK(dhd);
 	return ret;
 }
	/*
	* Linux cfg80211 driver - Dongle Host Driver (DHD) related
	*
	* Copyright 1999-2016, Broadcom Corporation
	* All rights reserved,
	*
	* Redistribution and use in source and binary forms, with or without modification,
	* are permitted provided that the following conditions are met:
	* 1. Redistributions of source code must retain the above copyright notice,
	* this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright notice,
	* this list of conditions and the following disclaimer in the documentation
	* and/or other materials provided with the distribution.
	*
	* This software is provided by the copyright holder "as is" and any express or
	* implied warranties, including, but not limited to, the implied warranties of
	* merchantability and fitness for a particular purpose are disclaimed. In no event
	* shall copyright holder be liable for any direct, indirect, incidental, special,
	* exemplary, or consequential damages (including, but not limited to, procurement
	* of substitute goods or services; loss of use, data, or profits; or business
	* interruption) however caused and on any theory of liability, whether in
	* contract, strict liability, or tort (including negligence or otherwise) arising
	* in any way out of the use of this software, even if advised of the possibility
	* of such damage
	*
	*
	* <<Broadcom-WL-IPTag/Open:>>
	*
	* $Id: dhd_cfg80211.c 591285 2015-10-07 11:56:29Z $
	*/

	#include <linux/vmalloc.h>
	#include <net/rtnetlink.h>

	#include <bcmutils.h>
	#include <wldev_common.h>
	#ifdef WL_CFG80211_V1
	#include <wl_cfg80211_v1.h>
	#else
	#include <wl_cfg80211.h>
	#endif /* WL_CFG80211_V1 */
	#include <dhd_cfg80211.h>

	#ifdef PKT_FILTER_SUPPORT
	#include <dngl_stats.h>
	#include <dhd.h>
	#endif

	#ifdef WL_CFG80211_V1
	extern struct bcm_cfg80211 *g_bcm_cfg;
	#endif /* WL_CFG80211_V1 */

	#ifdef PKT_FILTER_SUPPORT
	extern uint dhd_pkt_filter_enable;
	extern uint dhd_master_mode;
	extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode);
	#endif

	static int dhd_dongle_up = FALSE;

	#include <dngl_stats.h>
	#include <dhd.h>
	#include <dhdioctl.h>
	#include <wlioctl.h>
	#include <brcm_nl80211.h>
	#include <dhd_cfg80211.h>

	static s32 wl_dongle_up(struct net_device *ndev);
	static s32 wl_dongle_down(struct net_device *ndev);

	/**
	* Function implementations
	*/

	s32 dhd_cfg80211_init(struct bcm_cfg80211 *cfg)
	{
	dhd_dongle_up = FALSE;
	return 0;
	}

	s32 dhd_cfg80211_deinit(struct bcm_cfg80211 *cfg)
	{
	dhd_dongle_up = FALSE;
	return 0;
	}

	s32 dhd_cfg80211_down(struct bcm_cfg80211 *cfg)
	{
	struct net_device *ndev;
	s32 err = 0;

	WL_TRACE(("In\n"));
	if (!dhd_dongle_up) {
	WL_ERR(("Dongle is already down\n"));
	return err;
	}

	ndev = bcmcfg_to_prmry_ndev(cfg);
	wl_dongle_down(ndev);
	dhd_dongle_up = FALSE;
	return 0;
	}

	s32 dhd_cfg80211_set_p2p_info(struct bcm_cfg80211 *cfg, int val)
	{
	dhd_pub_t dhd = (dhd_pub_t )(cfg->pub);
	dhd->op_mode \|= val;
	WL_ERR(("Set : op_mode=0x%04x\n", dhd->op_mode));
	#ifdef ARP_OFFLOAD_SUPPORT
	if (dhd->arp_version == 1) {
	/* IF P2P is enabled, disable arpoe */
	dhd_arp_offload_set(dhd, 0);
	dhd_arp_offload_enable(dhd, false);
	}
	#endif /* ARP_OFFLOAD_SUPPORT */

	return 0;
	}

	s32 dhd_cfg80211_clean_p2p_info(struct bcm_cfg80211 *cfg)
	{
	dhd_pub_t dhd = (dhd_pub_t )(cfg->pub);
	dhd->op_mode &= ~(DHD_FLAG_P2P_GC_MODE \| DHD_FLAG_P2P_GO_MODE);
	WL_ERR(("Clean : op_mode=0x%04x\n", dhd->op_mode));

	#ifdef ARP_OFFLOAD_SUPPORT
	if (dhd->arp_version == 1) {
	/* IF P2P is disabled, enable arpoe back for STA mode. */
	dhd_arp_offload_set(dhd, dhd_arp_mode);
	dhd_arp_offload_enable(dhd, true);
	}
	#endif /* ARP_OFFLOAD_SUPPORT */

	return 0;
	}

	#ifdef WL_CFG80211_V1
	struct net_device* wl_cfg80211_allocate_if(struct bcm_cfg80211 cfg, int ifidx, char name,
	uint8 mac, uint8 bssidx, char dngl_name)
	#else
	struct net_device* wl_cfg80211_allocate_if(struct bcm_cfg80211 cfg, int ifidx, const char name,
	uint8 mac, uint8 bssidx, const char dngl_name)
	#endif /* WL_CFG80211_V1 */
	{
	return dhd_allocate_if(cfg->pub, ifidx, name, mac, bssidx, FALSE, dngl_name);
	}

	#ifdef WL_CFG80211_V1
	int wl_cfg80211_register_if(struct bcm_cfg80211 cfg, int ifidx, struct net_device ndev)
	{
	return dhd_register_if(cfg->pub, ifidx, FALSE);
	}

	int wl_cfg80211_remove_if(struct bcm_cfg80211 cfg, int ifidx, struct net_device ndev)
	{
	return dhd_remove_if(cfg->pub, ifidx, FALSE);
	}
	#else
	int wl_cfg80211_register_if(struct bcm_cfg80211 *cfg,
	int ifidx, struct net_device* ndev, bool rtnl_lock_reqd)
	{
	return dhd_register_if(cfg->pub, ifidx, rtnl_lock_reqd);
	}

	int wl_cfg80211_remove_if(struct bcm_cfg80211 *cfg,
	int ifidx, struct net_device* ndev, bool rtnl_lock_reqd)
	{
	return dhd_remove_if(cfg->pub, ifidx, rtnl_lock_reqd);
	}
	#endif /* WL_CFG80211_V1 */

	struct net_device * dhd_cfg80211_netdev_free(struct net_device *ndev)
	{
	if (ndev) {
	if (ndev->ieee80211_ptr) {
	kfree(ndev->ieee80211_ptr);
	ndev->ieee80211_ptr = NULL;
	}
	free_netdev(ndev);
	return NULL;
	}

	return ndev;
	}

	void dhd_netdev_free(struct net_device *ndev)
	{
	#ifdef WL_CFG80211
	ndev = dhd_cfg80211_netdev_free(ndev);
	#endif
	if (ndev)
	free_netdev(ndev);
	}

	static s32
	wl_dongle_up(struct net_device *ndev)
	{
	s32 err = 0;
	u32 up = 0;

	err = wldev_ioctl(ndev, WLC_UP, &up, sizeof(up), true);
	if (unlikely(err)) {
	WL_ERR(("WLC_UP error (%d)\n", err));
	}
	return err;
	}

	static s32
	wl_dongle_down(struct net_device *ndev)
	{
	s32 err = 0;
	u32 down = 0;

	err = wldev_ioctl(ndev, WLC_DOWN, &down, sizeof(down), true);
	if (unlikely(err)) {
	WL_ERR(("WLC_DOWN error (%d)\n", err));
	}
	return err;
	}


	s32 dhd_config_dongle(struct bcm_cfg80211 *cfg)
	{
	#ifndef DHD_SDALIGN
	#define DHD_SDALIGN 32
	#endif
	struct net_device *ndev;
	s32 err = 0;

	WL_TRACE(("In\n"));
	if (dhd_dongle_up) {
	WL_ERR(("Dongle is already up\n"));
	return err;
	}

	ndev = bcmcfg_to_prmry_ndev(cfg);

	err = wl_dongle_up(ndev);
	if (unlikely(err)) {
	WL_ERR(("wl_dongle_up failed\n"));
	goto default_conf_out;
	}
	dhd_dongle_up = true;

	default_conf_out:

	return err;

	}

	int dhd_cfgvendor_priv_string_handler(struct bcm_cfg80211 cfg, struct wireless_dev wdev,
	const struct bcm_nlmsg_hdr nlioc, void buf, int ifindex)
	{
	dhd_pub_t *dhd;
	dhd_ioctl_t ioc = { 0 };
	int ret = 0, err = 0;
	int8 index;
	struct net_device *ndev;

	WL_TRACE(("entry: cmd = %d\n", nlioc->cmd));

	dhd = cfg->pub;
	DHD_OS_WAKE_LOCK(dhd);

	/* send to dongle only if we are not waiting for reload already */
	if (dhd->hang_was_sent) {
	WL_ERR(("HANG was sent up earlier\n"));
	DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(dhd, DHD_EVENT_TIMEOUT_MS);
	DHD_OS_WAKE_UNLOCK(dhd);
	return OSL_ERROR(BCME_DONGLE_DOWN);
	}

	index = dhd_ifindex2idx(dhd->info, ifindex);
	if (index == DHD_BAD_IF) {
	ndev = wdev_to_wlc_ndev(wdev, cfg);
	index = dhd_net2idx(dhd->info, ndev);
	if (index == DHD_BAD_IF) {
	WL_ERR(("Bad ifidx %d, wdev:%p\n", ifindex, wdev));
	ret = BCME_ERROR;
	goto done;
	}
	}

	ioc.cmd = nlioc->cmd;
	ioc.len = nlioc->len;
	ioc.set = nlioc->set;
	ioc.driver = nlioc->magic;
	err = dhd_ioctl_process(dhd, index, &ioc, buf);
	if (err) {
	ret = OSL_ERROR(err);
	ndev = dhd_idx2net(dhd, index);
	if(ndev && (ndev->flags & IFF_UP))
	WL_DBG(("cmd %d return err %d on %s, ret %d\n",
	nlioc->cmd, err, ndev->name, ret));
	goto done;
	}

	done:
	DHD_OS_WAKE_UNLOCK(dhd);
	return ret;
	}