p54spi: p54spi driver

This patch adds the p54spi driver. Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-11 01:18:38 +01:00
parent 4628ae7558
commit cd8d3d3212
6 changed files with 908 additions and 1 deletions
--- a/drivers/net/wireless/p54/p54spi.h
+++ b/drivers/net/wireless/p54/p54spi.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2008 Christian Lamparter <chunkeey@web.de>
+ *
+ * This driver is a port from stlc45xx:
+ *	Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ *
+ * 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 P54SPI_H
+#define P54SPI_H
+
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <net/mac80211.h>
+#include <mach/board.h>
+
+#include "p54.h"
+
+/* Bit 15 is read/write bit; ON = READ, OFF = WRITE */
+#define SPI_ADRS_READ_BIT_15		0x8000
+
+#define SPI_ADRS_ARM_INTERRUPTS		0x00
+#define SPI_ADRS_ARM_INT_EN		0x04
+
+#define SPI_ADRS_HOST_INTERRUPTS	0x08
+#define SPI_ADRS_HOST_INT_EN		0x0c
+#define SPI_ADRS_HOST_INT_ACK		0x10
+
+#define SPI_ADRS_GEN_PURP_1		0x14
+#define SPI_ADRS_GEN_PURP_2		0x18
+
+#define SPI_ADRS_DEV_CTRL_STAT		0x26    /* high word */
+
+#define SPI_ADRS_DMA_DATA		0x28
+
+#define SPI_ADRS_DMA_WRITE_CTRL		0x2c
+#define SPI_ADRS_DMA_WRITE_LEN		0x2e
+#define SPI_ADRS_DMA_WRITE_BASE		0x30
+
+#define SPI_ADRS_DMA_READ_CTRL		0x34
+#define SPI_ADRS_DMA_READ_LEN		0x36
+#define SPI_ADRS_DMA_READ_BASE		0x38
+
+#define SPI_CTRL_STAT_HOST_OVERRIDE	0x8000
+#define SPI_CTRL_STAT_START_HALTED	0x4000
+#define SPI_CTRL_STAT_RAM_BOOT		0x2000
+#define SPI_CTRL_STAT_HOST_RESET	0x1000
+#define SPI_CTRL_STAT_HOST_CPU_EN	0x0800
+
+#define SPI_DMA_WRITE_CTRL_ENABLE	0x0001
+#define SPI_DMA_READ_CTRL_ENABLE	0x0001
+#define HOST_ALLOWED			(1 << 7)
+
+#define SPI_TIMEOUT			100         /* msec */
+
+#define SPI_MAX_TX_PACKETS		32
+
+#define SPI_MAX_PACKET_SIZE		32767
+
+#define SPI_TARGET_INT_WAKEUP		0x00000001
+#define SPI_TARGET_INT_SLEEP		0x00000002
+#define SPI_TARGET_INT_RDDONE		0x00000004
+
+#define SPI_TARGET_INT_CTS		0x00004000
+#define SPI_TARGET_INT_DR		0x00008000
+
+#define SPI_HOST_INT_READY		0x00000001
+#define SPI_HOST_INT_WR_READY		0x00000002
+#define SPI_HOST_INT_SW_UPDATE		0x00000004
+#define SPI_HOST_INT_UPDATE		0x10000000
+
+/* clear to send */
+#define SPI_HOST_INT_CR			0x00004000
+
+/* data ready */
+#define SPI_HOST_INT_DR			0x00008000
+
+#define SPI_HOST_INTS_DEFAULT 						    \
+	(SPI_HOST_INT_READY | SPI_HOST_INT_UPDATE | SPI_HOST_INT_SW_UPDATE)
+
+#define TARGET_BOOT_SLEEP 50
+
+struct p54s_dma_regs {
+	__le16 cmd;
+	__le16 len;
+	__le32 addr;
+} __attribute__ ((packed));
+
+struct p54s_tx_info {
+	struct list_head tx_list;
+};
+
+struct p54s_priv {
+	/* p54_common has to be the first entry */
+	struct p54_common common;
+	struct ieee80211_hw *hw;
+	struct spi_device *spi;
+	const struct omap_wlan_cx3110x_config *config;
+
+	struct work_struct work;
+
+	struct mutex mutex;
+	struct completion fw_comp;
+
+	spinlock_t tx_lock;
+
+	/* protected by tx_lock */
+	struct list_head tx_pending;
+
+	enum fw_state fw_state;
+	const struct firmware *firmware;
+};
+
+#endif /* P54SPI_H */