136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/*
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* carlu - userspace testing utility for ar9170 devices
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*
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* register/memory/command access functions
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*
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* Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __CARL9170USER_CMD_H
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#define __CARL9170USER_CMD_H
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#include "carlu.h"
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int carlu_cmd_echo(struct carlu *ar, const uint32_t message);
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int carlu_cmd_reboot(struct carlu *ar);
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int carlu_cmd_read_eeprom(struct carlu *ar);
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int carlu_cmd_mem_dump(struct carlu *ar, const uint32_t start,
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const unsigned int len, void *_buf);
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int carlu_cmd_write_mem(struct carlu *ar, const uint32_t addr,
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const uint32_t val);
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int carlu_cmd_mem_watch(struct carlu *ar, const uint32_t mem,
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const unsigned int len, void *_buf);
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struct carl9170_cmd *carlu_cmd_buf(struct carlu *ar,
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const enum carl9170_cmd_oids cmd, const unsigned int len);
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#define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1)
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/*
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* Macros to facilitate writing multiple registers in a single
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* write-combining USB command. Note that when the first group
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* fails the whole thing will fail without any others attempted,
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* but you won't know which write in the group failed.
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*/
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#define carlu_regwrite_begin(ar) \
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do { \
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struct carlu *__ar = ar; \
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unsigned int __nreg = 0; \
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int __err = 0; \
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uint32_t __dummy;
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#define carlu_regwrite_flush() \
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if (__nreg) { \
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__err = carlusb_cmd(__ar, CARL9170_CMD_WREG, \
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(u8 *)&__ar->cmd.cmd.data, 8 * __nreg, \
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(u8 *)&__dummy, sizeof(__dummy)); \
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__nreg = 0; \
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if (__err) \
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goto __regwrite_out; \
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}
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#define carlu_regwrite(r, v) do { \
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__ar->cmd.buf4[2 * __nreg + 1] = cpu_to_le32(r); \
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__ar->cmd.buf4[2 * __nreg + 2] = cpu_to_le32(v); \
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__nreg++; \
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if ((__nreg >= PAYLOAD_MAX / 2)) { \
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__err = carlusb_cmd(__ar, CARL9170_CMD_WREG, \
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(u8 *)&__ar->cmd.cmd.data, 8 * __nreg, \
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(u8 *)&__dummy, sizeof(__dummy)); \
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\
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__nreg = 0; \
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if (__err) \
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goto __regwrite_out; \
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} \
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} while (0)
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#define carlu_regwrite_finish() \
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__regwrite_out : \
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if (__err == 0 && __nreg) \
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carlu_regwrite_flush();
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#define carlu_regwrite_result() \
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__err; \
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} while (0);
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#define carlu_async_get_buf() \
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do { \
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__cmd = carlu_cmd_buf(__carl, CARL9170_CMD_WREG_ASYNC, \
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CARL9170_MAX_CMD_PAYLOAD_LEN); \
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if (IS_ERR_OR_NULL(__cmd)) { \
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__err = __cmd ? PTR_ERR(__cmd) : -ENOMEM; \
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goto __async_regwrite_out; \
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} \
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} while (0);
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#define carlu_async_regwrite_begin(carl) \
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do { \
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int __nreg = 0, __err = 0; \
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struct carlu *__carl = carl; \
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struct carl9170_cmd *__cmd; \
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carlu_async_get_buf(); \
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#define carlu_async_regwrite_flush() \
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if (__nreg) { \
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__cmd->hdr.len = 8 * __nreg; \
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__err = carlusb_cmd_async(__carl, __cmd, true); \
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__nreg = 0; \
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if (__err) \
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goto __async_regwrite_out; \
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__cmd = NULL; \
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carlu_async_get_buf(); \
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}
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#define carlu_async_regwrite(r, v) do { \
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__cmd->wreg.regs[__nreg].addr = cpu_to_le32(r); \
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__cmd->wreg.regs[__nreg].val = cpu_to_le32(v); \
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__nreg++; \
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if ((__nreg >= PAYLOAD_MAX / 2)) \
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carlu_async_regwrite_flush(); \
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} while (0)
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#define carlu_async_regwrite_finish() \
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__async_regwrite_out : \
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if (__err == 0 && __nreg) \
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carlu_async_regwrite_flush();
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#define carlu_async_regwrite_result() \
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__err; \
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} while (0);
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#endif /* __CARL9170USER_CMD_H */
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