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/*
* carlu - userspace testing utility for ar9170 devices
*
* register/memory/command access functions
*
* Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __CARL9170USER_CMD_H
#define __CARL9170USER_CMD_H
#include "carlu.h"
int carlu_cmd_echo(struct carlu *ar, const uint32_t message);
int carlu_cmd_reboot(struct carlu *ar);
int carlu_cmd_read_eeprom(struct carlu *ar);
int carlu_cmd_mem_dump(struct carlu *ar, const uint32_t start,
const unsigned int len, void *_buf);
int carlu_cmd_write_mem(struct carlu *ar, const uint32_t addr,
const uint32_t val);
int carlu_cmd_mem_watch(struct carlu *ar, const uint32_t mem,
const unsigned int len, void *_buf);
struct carl9170_cmd *carlu_cmd_buf(struct carlu *ar,
const enum carl9170_cmd_oids cmd, const unsigned int len);
#define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1)
/*
* 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 carlu_regwrite_begin(ar) \
do { \
struct carlu *__ar = ar; \
unsigned int __nreg = 0; \
int __err = 0; \
uint32_t __dummy;
#define carlu_regwrite_flush() \
if (__nreg) { \
__err = carlusb_cmd(__ar, CARL9170_CMD_WREG, \
(u8 *)&__ar->cmd.cmd.data, 8 * __nreg, \
(u8 *)&__dummy, sizeof(__dummy)); \
__nreg = 0; \
if (__err) \
goto __regwrite_out; \
}
#define carlu_regwrite(r, v) do { \
__ar->cmd.buf4[2 * __nreg + 1] = cpu_to_le32(r); \
__ar->cmd.buf4[2 * __nreg + 2] = cpu_to_le32(v); \
__nreg++; \
if ((__nreg >= PAYLOAD_MAX / 2)) { \
__err = carlusb_cmd(__ar, CARL9170_CMD_WREG, \
(u8 *)&__ar->cmd.cmd.data, 8 * __nreg, \
(u8 *)&__dummy, sizeof(__dummy)); \
\
__nreg = 0; \
if (__err) \
goto __regwrite_out; \
} \
} while (0)
#define carlu_regwrite_finish() \
__regwrite_out : \
if (__err == 0 && __nreg) \
carlu_regwrite_flush();
#define carlu_regwrite_result() \
__err; \
} while (0);
#define carlu_async_get_buf() \
do { \
__cmd = carlu_cmd_buf(__carl, CARL9170_CMD_WREG_ASYNC, \
CARL9170_MAX_CMD_PAYLOAD_LEN); \
if (IS_ERR_OR_NULL(__cmd)) { \
__err = __cmd ? PTR_ERR(__cmd) : -ENOMEM; \
goto __async_regwrite_out; \
} \
} while (0);
#define carlu_async_regwrite_begin(carl) \
do { \
int __nreg = 0, __err = 0; \
struct carlu *__carl = carl; \
struct carl9170_cmd *__cmd; \
carlu_async_get_buf(); \
#define carlu_async_regwrite_flush() \
if (__nreg) { \
__cmd->hdr.len = 8 * __nreg; \
__err = carlusb_cmd_async(__carl, __cmd, true); \
__nreg = 0; \
if (__err) \
goto __async_regwrite_out; \
__cmd = NULL; \
carlu_async_get_buf(); \
}
#define carlu_async_regwrite(r, v) do { \
__cmd->wreg.regs[__nreg].addr = cpu_to_le32(r); \
__cmd->wreg.regs[__nreg].val = cpu_to_le32(v); \
__nreg++; \
if ((__nreg >= PAYLOAD_MAX / 2)) \
carlu_async_regwrite_flush(); \
} while (0)
#define carlu_async_regwrite_finish() \
__async_regwrite_out : \
if (__err == 0 && __nreg) \
carlu_async_regwrite_flush();
#define carlu_async_regwrite_result() \
__err; \
} while (0);
#endif /* __CARL9170USER_CMD_H */
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