wl1271: add wl1271 driver files

This driver supports the wl1271 chipset from Texas Instruments based on the
WiLink(tm) 6.0 mobile platform.  Support for wl1273 should be relatively easy
to add.  This chipset is designed for embedded devices, with good powersaving
capabilities.  The wl1271 chipset is the successor of wl1251 and supports the
802.11b/g/n standards, but currently this driver supports only b/g.

More information about this chipset can be found here:
http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12762&contentId=29993

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 113 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_spi.h b/drivers/net/wireless/wl12xx/wl1271_spi.h
new file mode 100644
index 000000000000..2c9968458646
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl1271_spi.h
@@ -0,0 +1,113 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ *
+ * 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 __WL1271_SPI_H__
+#define __WL1271_SPI_H__
+
+#include "wl1271_reg.h"
+
+#define HW_ACCESS_MEMORY_MAX_RANGE              0x1FFC0
+
+#define HW_ACCESS_PART0_SIZE_ADDR           0x1FFC0
+#define HW_ACCESS_PART0_START_ADDR          0x1FFC4
+#define HW_ACCESS_PART1_SIZE_ADDR           0x1FFC8
+#define HW_ACCESS_PART1_START_ADDR          0x1FFCC
+
+#define HW_ACCESS_REGISTER_SIZE             4
+
+#define HW_ACCESS_PRAM_MAX_RANGE                0x3c000
+
+#define WSPI_CMD_READ                 0x40000000
+#define WSPI_CMD_WRITE                0x00000000
+#define WSPI_CMD_FIXED                0x20000000
+#define WSPI_CMD_BYTE_LENGTH          0x1FFE0000
+#define WSPI_CMD_BYTE_LENGTH_OFFSET   17
+#define WSPI_CMD_BYTE_ADDR            0x0001FFFF
+
+#define WSPI_INIT_CMD_CRC_LEN       5
+
+#define WSPI_INIT_CMD_START         0x00
+#define WSPI_INIT_CMD_TX            0x40
+/* the extra bypass bit is sampled by the TNET as '1' */
+#define WSPI_INIT_CMD_BYPASS_BIT    0x80
+#define WSPI_INIT_CMD_FIXEDBUSY_LEN 0x07
+#define WSPI_INIT_CMD_EN_FIXEDBUSY  0x80
+#define WSPI_INIT_CMD_DIS_FIXEDBUSY 0x00
+#define WSPI_INIT_CMD_IOD           0x40
+#define WSPI_INIT_CMD_IP            0x20
+#define WSPI_INIT_CMD_CS            0x10
+#define WSPI_INIT_CMD_WS            0x08
+#define WSPI_INIT_CMD_WSPI          0x01
+#define WSPI_INIT_CMD_END           0x01
+
+#define WSPI_INIT_CMD_LEN           8
+
+#define HW_ACCESS_WSPI_FIXED_BUSY_LEN \
+                ((WL1271_BUSY_WORD_LEN - 4) / sizeof(u32))
+#define HW_ACCESS_WSPI_INIT_CMD_MASK  0
+
+
+/* Raw target IO, address is not translated */
+void wl1271_spi_write(struct wl1271 *wl, int addr, void *buf,
+                      size_t len, bool fixed);
+void wl1271_spi_read(struct wl1271 *wl, int addr, void *buf,
+                     size_t len, bool fixed);
+
+/* Memory target IO, address is tranlated to partition 0 */
+void wl1271_spi_mem_read(struct wl1271 *wl, int addr, void *buf, size_t len);
+void wl1271_spi_mem_write(struct wl1271 *wl, int addr, void *buf, size_t len);
+u32 wl1271_mem_read32(struct wl1271 *wl, int addr);
+void wl1271_mem_write32(struct wl1271 *wl, int addr, u32 val);
+
+/* Registers IO */
+void wl1271_spi_reg_read(struct wl1271 *wl, int addr, void *buf, size_t len,
+                         bool fixed);
+void wl1271_spi_reg_write(struct wl1271 *wl, int addr, void *buf, size_t len,
+                          bool fixed);
+u32 wl1271_reg_read32(struct wl1271 *wl, int addr);
+void wl1271_reg_write32(struct wl1271 *wl, int addr, u32 val);
+
+/* INIT and RESET words */
+void wl1271_spi_reset(struct wl1271 *wl);
+void wl1271_spi_init(struct wl1271 *wl);
+int wl1271_set_partition(struct wl1271 *wl,
+                         u32 part_start, u32 part_size,
+                         u32 reg_start,  u32 reg_size);
+
+static inline u32 wl1271_read32(struct wl1271 *wl, int addr)
+{
+        wl1271_spi_read(wl, addr, &wl->buffer_32,
+                        sizeof(wl->buffer_32), false);
+
+        return wl->buffer_32;
+}
+
+static inline void wl1271_write32(struct wl1271 *wl, int addr, u32 val)
+{
+        wl->buffer_32 = val;
+        wl1271_spi_write(wl, addr, &wl->buffer_32,
+                         sizeof(wl->buffer_32), false);
+}
+
+#endif /* __WL1271_SPI_H__ */