mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 14:21:47 +00:00
e9348cdd28
This patch contains almost all mac80211 interaction code of AR9170. Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
92 lines
3.2 KiB
C
92 lines
3.2 KiB
C
/*
|
|
* Atheros AR9170 driver
|
|
*
|
|
* Basic HW register/memory/command access functions
|
|
*
|
|
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
|
|
*
|
|
* 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; see the file COPYING. If not, see
|
|
* http://www.gnu.org/licenses/.
|
|
*
|
|
* This file incorporates work covered by the following copyright and
|
|
* permission notice:
|
|
* Copyright (c) 2007-2008 Atheros Communications, Inc.
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
#ifndef __CMD_H
|
|
#define __CMD_H
|
|
|
|
#include "ar9170.h"
|
|
|
|
/* basic HW access */
|
|
int ar9170_write_mem(struct ar9170 *ar, const __le32 *data, size_t len);
|
|
int ar9170_write_reg(struct ar9170 *ar, const u32 reg, const u32 val);
|
|
int ar9170_read_reg(struct ar9170 *ar, u32 reg, u32 *val);
|
|
int ar9170_echo_test(struct ar9170 *ar, u32 v);
|
|
|
|
/*
|
|
* Macros to facilitate writing multiple registers in a single
|
|
* write-combining USB command. Note that when the first group
|
|
* fails the whole thing will fail without any others attempted,
|
|
* but you won't know which write in the group failed.
|
|
*/
|
|
#define ar9170_regwrite_begin(ar) \
|
|
do { \
|
|
int __nreg = 0, __err = 0; \
|
|
struct ar9170 *__ar = ar;
|
|
|
|
#define ar9170_regwrite(r, v) do { \
|
|
__ar->cmdbuf[2 * __nreg + 1] = cpu_to_le32(r); \
|
|
__ar->cmdbuf[2 * __nreg + 2] = cpu_to_le32(v); \
|
|
__nreg++; \
|
|
if ((__nreg >= PAYLOAD_MAX/2)) { \
|
|
if (IS_ACCEPTING_CMD(__ar)) \
|
|
__err = ar->exec_cmd(__ar, AR9170_CMD_WREG, \
|
|
8 * __nreg, \
|
|
(u8 *) &__ar->cmdbuf[1], \
|
|
0, NULL); \
|
|
__nreg = 0; \
|
|
if (__err) \
|
|
goto __regwrite_out; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ar9170_regwrite_finish() \
|
|
__regwrite_out : \
|
|
if (__nreg) { \
|
|
if (IS_ACCEPTING_CMD(__ar)) \
|
|
__err = ar->exec_cmd(__ar, AR9170_CMD_WREG, \
|
|
8 * __nreg, \
|
|
(u8 *) &__ar->cmdbuf[1], \
|
|
0, NULL); \
|
|
__nreg = 0; \
|
|
}
|
|
|
|
#define ar9170_regwrite_result() \
|
|
__err; \
|
|
} while (0);
|
|
|
|
#endif /* __CMD_H */
|