forked from Minki/linux
c5745187a4
The wl12xx device normally drops all frames coming from BSSID it is not joined with. This behavior is configured today by the wl12xx driver in response to a handful of ieee80211_bss_change and ieee80211_conf_changed notification flags, such as BSS_CHANGED_ASSOC, BSS_CHANGED_BSSID, IEEE80211_CONF_CHANGE_IDLE, etc.. This breaks when we roam to a new BSSID, where authentication frames are sent before any BSS_CHANGED/CONF_CHANGED flags are received. When this happens the hardware silently drops the authentication responses, and the roaming fails. Ideally this aggressive filtering behavior of the device should be disabled upon a notification from mac80211. Such notification will take place after multi-channel support will be added: mac80211 will likely send a remain-on-channel notification to drivers when entering sensitive states (like authentication), otherwise the firmware might jump to different channels (to serve a different role). Until those notifications materialize, disable the hw BSSID filter when authentication requests are sent, so roaming would work. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Reviewed-by: Luciano Coelho <coelho@ti.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
177 lines
5.1 KiB
C
177 lines
5.1 KiB
C
/*
|
|
* This file is part of wl1271
|
|
*
|
|
* Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
|
|
* Copyright (C) 2008-2010 Nokia Corporation
|
|
*
|
|
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef __IO_H__
|
|
#define __IO_H__
|
|
|
|
#include "reg.h"
|
|
|
|
#define HW_ACCESS_MEMORY_MAX_RANGE 0x1FFC0
|
|
|
|
#define HW_PARTITION_REGISTERS_ADDR 0x1FFC0
|
|
#define HW_PART0_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR)
|
|
#define HW_PART0_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 4)
|
|
#define HW_PART1_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 8)
|
|
#define HW_PART1_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 12)
|
|
#define HW_PART2_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 16)
|
|
#define HW_PART2_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 20)
|
|
#define HW_PART3_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 24)
|
|
|
|
#define HW_ACCESS_REGISTER_SIZE 4
|
|
|
|
#define HW_ACCESS_PRAM_MAX_RANGE 0x3c000
|
|
|
|
struct wl1271;
|
|
|
|
void wl1271_disable_interrupts(struct wl1271 *wl);
|
|
void wl1271_enable_interrupts(struct wl1271 *wl);
|
|
|
|
void wl1271_io_reset(struct wl1271 *wl);
|
|
void wl1271_io_init(struct wl1271 *wl);
|
|
|
|
static inline struct device *wl1271_wl_to_dev(struct wl1271 *wl)
|
|
{
|
|
return wl->if_ops->dev(wl);
|
|
}
|
|
|
|
|
|
/* Raw target IO, address is not translated */
|
|
static inline void wl1271_raw_write(struct wl1271 *wl, int addr, void *buf,
|
|
size_t len, bool fixed)
|
|
{
|
|
wl->if_ops->write(wl, addr, buf, len, fixed);
|
|
}
|
|
|
|
static inline void wl1271_raw_read(struct wl1271 *wl, int addr, void *buf,
|
|
size_t len, bool fixed)
|
|
{
|
|
wl->if_ops->read(wl, addr, buf, len, fixed);
|
|
}
|
|
|
|
static inline u32 wl1271_raw_read32(struct wl1271 *wl, int addr)
|
|
{
|
|
wl1271_raw_read(wl, addr, &wl->buffer_32,
|
|
sizeof(wl->buffer_32), false);
|
|
|
|
return le32_to_cpu(wl->buffer_32);
|
|
}
|
|
|
|
static inline void wl1271_raw_write32(struct wl1271 *wl, int addr, u32 val)
|
|
{
|
|
wl->buffer_32 = cpu_to_le32(val);
|
|
wl1271_raw_write(wl, addr, &wl->buffer_32,
|
|
sizeof(wl->buffer_32), false);
|
|
}
|
|
|
|
/* Translated target IO */
|
|
static inline int wl1271_translate_addr(struct wl1271 *wl, int addr)
|
|
{
|
|
/*
|
|
* To translate, first check to which window of addresses the
|
|
* particular address belongs. Then subtract the starting address
|
|
* of that window from the address. Then, add offset of the
|
|
* translated region.
|
|
*
|
|
* The translated regions occur next to each other in physical device
|
|
* memory, so just add the sizes of the preceeding address regions to
|
|
* get the offset to the new region.
|
|
*
|
|
* Currently, only the two first regions are addressed, and the
|
|
* assumption is that all addresses will fall into either of those
|
|
* two.
|
|
*/
|
|
if ((addr >= wl->part.reg.start) &&
|
|
(addr < wl->part.reg.start + wl->part.reg.size))
|
|
return addr - wl->part.reg.start + wl->part.mem.size;
|
|
else
|
|
return addr - wl->part.mem.start;
|
|
}
|
|
|
|
static inline void wl1271_read(struct wl1271 *wl, int addr, void *buf,
|
|
size_t len, bool fixed)
|
|
{
|
|
int physical;
|
|
|
|
physical = wl1271_translate_addr(wl, addr);
|
|
|
|
wl1271_raw_read(wl, physical, buf, len, fixed);
|
|
}
|
|
|
|
static inline void wl1271_write(struct wl1271 *wl, int addr, void *buf,
|
|
size_t len, bool fixed)
|
|
{
|
|
int physical;
|
|
|
|
physical = wl1271_translate_addr(wl, addr);
|
|
|
|
wl1271_raw_write(wl, physical, buf, len, fixed);
|
|
}
|
|
|
|
static inline u32 wl1271_read32(struct wl1271 *wl, int addr)
|
|
{
|
|
return wl1271_raw_read32(wl, wl1271_translate_addr(wl, addr));
|
|
}
|
|
|
|
static inline void wl1271_write32(struct wl1271 *wl, int addr, u32 val)
|
|
{
|
|
wl1271_raw_write32(wl, wl1271_translate_addr(wl, addr), val);
|
|
}
|
|
|
|
static inline void wl1271_power_off(struct wl1271 *wl)
|
|
{
|
|
wl->if_ops->power(wl, false);
|
|
clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
|
|
}
|
|
|
|
static inline int wl1271_power_on(struct wl1271 *wl)
|
|
{
|
|
int ret = wl->if_ops->power(wl, true);
|
|
if (ret == 0)
|
|
set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/* Top Register IO */
|
|
void wl1271_top_reg_write(struct wl1271 *wl, int addr, u16 val);
|
|
u16 wl1271_top_reg_read(struct wl1271 *wl, int addr);
|
|
|
|
int wl1271_set_partition(struct wl1271 *wl,
|
|
struct wl1271_partition_set *p);
|
|
|
|
/* Functions from wl1271_main.c */
|
|
|
|
int wl1271_register_hw(struct wl1271 *wl);
|
|
void wl1271_unregister_hw(struct wl1271 *wl);
|
|
int wl1271_init_ieee80211(struct wl1271 *wl);
|
|
struct ieee80211_hw *wl1271_alloc_hw(void);
|
|
int wl1271_free_hw(struct wl1271 *wl);
|
|
irqreturn_t wl1271_irq(int irq, void *data);
|
|
bool wl1271_set_block_size(struct wl1271 *wl);
|
|
int wl1271_tx_dummy_packet(struct wl1271 *wl);
|
|
void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters);
|
|
|
|
#endif
|