sm_drv_spi.h

cx3110 drivers for linux 2.6 (基于SPI)

/*
 * src/sm_drv_spi.h
 *
 * Copyright (C) 2003 Conexant Americas Inc. All Rights Reserved.
 * Copyright (C) 2004, 2005, 2006 Nokia Corporation
 * Author: Samuel Ortiz <[e-mail]>
 *
 *
 * 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.
 *
 */
#ifndef _SM_DRV_SPI_H
#define _SM_DRV_SPI_H

/*
 * INCLUDES
 */
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/arch/board.h>

#include "sm_drv_spi_io.h"
#include "softmac2.h"
#include "smoid2.h"

/*
 * FUNCTION PROTOTYPES
 */

/*
 * DEFINES
 */

#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 FIRMWARE_ADDRESS                        0x20000

#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

#define SPI_HOST_INT_CTS	                0x00004000	// clear to send
#define SPI_HOST_INT_DR	                        0x00008000	// data ready

#define SPI_HOST_INTS_DEFAULT                   SPI_HOST_INT_READY | SPI_HOST_INT_UPDATE | SPI_HOST_INT_SW_UPDATE


#define UPLOAD_STATE_BOOTING                    0
#define UPLOAD_STATE_RUNNING                    1

/*
 * Structure definitions
 */

struct s_dma_regs{
	unsigned short cmd;
	unsigned short len;
	unsigned long addr;
};

struct s_rxdata {
	struct s_ic_msg *ic_msg;
};

struct spi_tx_descriptor
{
	uint32_t lmac_address;
};

#define SPI_DELAY_THRESHOLD 6
struct spi_hif_local_data {
	spinlock_t lock;                           /* lock */
	struct net_device *netdev;                 /* associated network device */
	
	const struct omap_wlan_config * nokia_wlan_config;
	struct clk *spi_ck;
	
	uint32_t upload_state;
	uint32_t max_packet_size;
	uint32_t initial_packets;
	uint32_t spi_packets;

	struct timer_list spi_timer;          /* SPI timer */
};

#define HIF_LP(__lp)    ((struct spi_hif_local_data *)__lp->hif_local_data)
#define HIF_CLK(hif_data) (hif_data)->spi_ck
#define HIF_CLK_USE(hif_data) clk_enable((hif_data)->spi_ck)
#define HIF_CLK_UNUSE(hif_data) clk_disable((hif_data)->spi_ck)

int sm_drv_spi_upload_firmware(struct net_device *ndev);
struct s_pda * sm_drv_spi_get_pda(struct device *dev);
int sm_drv_spi_request_irq( struct net_device *dev );
void sm_drv_spi_free_irq( struct net_device *dev );

#endif /* _SM_DRV_SPI_H */