wl1251: separate bus i/o code into io.c

In order to eventually support wl1251 spi and sdio interfaces, move
the register and memory transfer functions to a common file.  Also
rename wl1251_spi_mem_{read,write} to indicate its common usage.
We still use spi_read internally until SDIO interface is introduced
so nothing functional should change here.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1251_io.h b/drivers/net/wireless/wl12xx/wl1251_io.h
new file mode 100644
index 00000000000..e2bb9546fa6
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl1251_io.h
@@ -0,0 +1,54 @@
+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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 St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+#ifndef __WL1251_IO_H__
+#define __WL1251_IO_H__
+
+#include "wl1251.h"
+#include "wl1251_spi.h"
+
+/* Raw target IO, address is not translated */
+void wl1251_spi_read(struct wl1251 *wl, int addr, void *buf, size_t len);
+void wl1251_spi_write(struct wl1251 *wl, int addr, void *buf, size_t len);
+
+static inline u32 wl1251_read32(struct wl1251 *wl, int addr)
+{
+	u32 response;
+
+	wl1251_spi_read(wl, addr, &response, sizeof(u32));
+
+	return response;
+}
+
+static inline void wl1251_write32(struct wl1251 *wl, int addr, u32 val)
+{
+	wl1251_spi_write(wl, addr, &val, sizeof(u32));
+}
+
+/* Memory target IO, address is translated to partition 0 */
+void wl1251_mem_read(struct wl1251 *wl, int addr, void *buf, size_t len);
+void wl1251_mem_write(struct wl1251 *wl, int addr, void *buf, size_t len);
+u32 wl1251_mem_read32(struct wl1251 *wl, int addr);
+void wl1251_mem_write32(struct wl1251 *wl, int addr, u32 val);
+/* Registers IO */
+u32 wl1251_reg_read32(struct wl1251 *wl, int addr);
+void wl1251_reg_write32(struct wl1251 *wl, int addr, u32 val);
+
+#endif