carl9170: mac80211 glue and command interface
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/carl9170/cmd.h b/drivers/net/wireless/ath/carl9170/cmd.h
new file mode 100644
index 0000000..0fc83d2
--- /dev/null
+++ b/drivers/net/wireless/ath/carl9170/cmd.h
@@ -0,0 +1,158 @@
+/*
+ * Atheros CARL9170 driver
+ *
+ * Basic HW register/memory/command access functions
+ *
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2010, 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; 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 "carl9170.h"
+
+/* basic HW access */
+int carl9170_write_reg(struct ar9170 *ar, const u32 reg, const u32 val);
+int carl9170_read_reg(struct ar9170 *ar, const u32 reg, u32 *val);
+int carl9170_read_mreg(struct ar9170 *ar, const int nregs,
+ const u32 *regs, u32 *out);
+int carl9170_echo_test(struct ar9170 *ar, u32 v);
+int carl9170_reboot(struct ar9170 *ar);
+int carl9170_mac_reset(struct ar9170 *ar);
+int carl9170_powersave(struct ar9170 *ar, const bool power_on);
+int carl9170_bcn_ctrl(struct ar9170 *ar, const unsigned int vif_id,
+ const u32 mode, const u32 addr, const u32 len);
+
+static inline int carl9170_flush_cab(struct ar9170 *ar,
+ const unsigned int vif_id)
+{
+ return carl9170_bcn_ctrl(ar, vif_id, CARL9170_BCN_CTRL_DRAIN, 0, 0);
+}
+
+struct carl9170_cmd *carl9170_cmd_buf(struct ar9170 *ar,
+ const enum carl9170_cmd_oids cmd, const unsigned int len);
+
+/*
+ * 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 carl9170_regwrite_begin(ar) \
+do { \
+ int __nreg = 0, __err = 0; \
+ struct ar9170 *__ar = ar;
+
+#define carl9170_regwrite(r, v) do { \
+ __ar->cmd_buf[2 * __nreg + 1] = cpu_to_le32(r); \
+ __ar->cmd_buf[2 * __nreg + 2] = cpu_to_le32(v); \
+ __nreg++; \
+ if ((__nreg >= PAYLOAD_MAX/2)) { \
+ if (IS_ACCEPTING_CMD(__ar)) \
+ __err = carl9170_exec_cmd(__ar, \
+ CARL9170_CMD_WREG, 8 * __nreg, \
+ (u8 *) &__ar->cmd_buf[1], 0, NULL); \
+ else \
+ goto __regwrite_out; \
+ \
+ __nreg = 0; \
+ if (__err) \
+ goto __regwrite_out; \
+ } \
+} while (0)
+
+#define carl9170_regwrite_finish() \
+__regwrite_out : \
+ if (__err == 0 && __nreg) { \
+ if (IS_ACCEPTING_CMD(__ar)) \
+ __err = carl9170_exec_cmd(__ar, \
+ CARL9170_CMD_WREG, 8 * __nreg, \
+ (u8 *) &__ar->cmd_buf[1], 0, NULL); \
+ __nreg = 0; \
+ }
+
+#define carl9170_regwrite_result() \
+ __err; \
+} while (0);
+
+
+#define carl9170_async_get_buf() \
+do { \
+ __cmd = carl9170_cmd_buf(__carl, CARL9170_CMD_WREG_ASYNC, \
+ CARL9170_MAX_CMD_PAYLOAD_LEN); \
+ if (__cmd == NULL) { \
+ __err = -ENOMEM; \
+ goto __async_regwrite_out; \
+ } \
+} while (0);
+
+#define carl9170_async_regwrite_begin(carl) \
+do { \
+ int __nreg = 0, __err = 0; \
+ struct ar9170 *__carl = carl; \
+ struct carl9170_cmd *__cmd; \
+ carl9170_async_get_buf(); \
+
+#define carl9170_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)) { \
+ if (IS_ACCEPTING_CMD(__carl)) { \
+ __cmd->hdr.len = 8 * __nreg; \
+ __err = __carl9170_exec_cmd(__carl, __cmd, true);\
+ __cmd = NULL; \
+ carl9170_async_get_buf(); \
+ } else { \
+ goto __async_regwrite_out; \
+ } \
+ __nreg = 0; \
+ if (__err) \
+ goto __async_regwrite_out; \
+ } \
+} while (0)
+
+#define carl9170_async_regwrite_finish() \
+__async_regwrite_out : \
+ if (__err == 0 && __nreg) { \
+ __cmd->hdr.len = 8 * __nreg; \
+ if (IS_ACCEPTING_CMD(__carl)) \
+ __err = __carl9170_exec_cmd(__carl, __cmd, true);\
+ __nreg = 0; \
+ }
+
+#define carl9170_async_regwrite_result() \
+ __err; \
+} while (0);
+
+#endif /* __CMD_H */