| /* |
| * 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_read_mreg(struct ar9170 *ar, int nregs, const u32 *regs, u32 *out); |
| 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 */ |