linux_dsm_epyc7002/drivers/net/wireless/rt2x00/rt2800lib.h
Gertjan van Wingerde 31a4cf1f22 rt2x00: Fix BUG on rt2800usb when trying to read eFuse EEPROM.
Current tree hits a BUG_ON in rt2x00_regbusy_read, because the eFuse EEPROM
reading code of rt2800lib uses the function without the csr_mutex locked.

Fix this by locking the csr_mutex for the of the EEPROM reading cycly and
using the _lock variants of the register reading and writing functions.

This also introcudes the register_read_lock function pointer in the
rt2800_ops structure.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-16 14:17:12 -05:00

152 lines
5.3 KiB
C

/*
Copyright (C) 2009 Bartlomiej Zolnierkiewicz
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef RT2800LIB_H
#define RT2800LIB_H
struct rt2800_ops {
void (*register_read)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 *value);
void (*register_read_lock)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 *value);
void (*register_write)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 value);
void (*register_write_lock)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 value);
void (*register_multiread)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u32 length);
void (*register_multiwrite)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
const void *value, const u32 length);
int (*regbusy_read)(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
const struct rt2x00_field32 field, u32 *reg);
};
static inline void rt2800_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 *value)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
rt2800ops->register_read(rt2x00dev, offset, value);
}
static inline void rt2800_register_read_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 *value)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
rt2800ops->register_read_lock(rt2x00dev, offset, value);
}
static inline void rt2800_register_write(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 value)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
rt2800ops->register_write(rt2x00dev, offset, value);
}
static inline void rt2800_register_write_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 value)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
rt2800ops->register_write_lock(rt2x00dev, offset, value);
}
static inline void rt2800_register_multiread(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u32 length)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
rt2800ops->register_multiread(rt2x00dev, offset, value, length);
}
static inline void rt2800_register_multiwrite(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
const void *value,
const u32 length)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
rt2800ops->register_multiwrite(rt2x00dev, offset, value, length);
}
static inline int rt2800_regbusy_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
const struct rt2x00_field32 field,
u32 *reg)
{
const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
return rt2800ops->regbusy_read(rt2x00dev, offset, field, reg);
}
void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev,
const u8 command, const u8 token,
const u8 arg0, const u8 arg1);
extern const struct rt2x00debug rt2800_rt2x00debug;
int rt2800_rfkill_poll(struct rt2x00_dev *rt2x00dev);
void rt2800_init_led(struct rt2x00_dev *rt2x00dev,
struct rt2x00_led *led, enum led_type type);
int rt2800_config_shared_key(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_crypto *crypto,
struct ieee80211_key_conf *key);
int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_crypto *crypto,
struct ieee80211_key_conf *key);
void rt2800_config_filter(struct rt2x00_dev *rt2x00dev,
const unsigned int filter_flags);
void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf,
struct rt2x00intf_conf *conf, const unsigned int flags);
void rt2800_config_erp(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_erp *erp);
void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant);
void rt2800_config(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf,
const unsigned int flags);
void rt2800_link_stats(struct rt2x00_dev *rt2x00dev, struct link_qual *qual);
void rt2800_reset_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual);
void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual,
const u32 count);
int rt2800_init_registers(struct rt2x00_dev *rt2x00dev);
int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev);
int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev);
int rt2800_efuse_detect(struct rt2x00_dev *rt2x00dev);
void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev);
int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev);
int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev);
int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev);
extern const struct ieee80211_ops rt2800_mac80211_ops;
#endif /* RT2800LIB_H */