path: root/drivers/net/wireless/libertas/if_cs.c

/*

  Driver for the Marvell 8385 based compact flash WLAN cards.

  (C) 2007 by Holger Schurig <hs4233@mail.mn-solutions.de>

  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, write to
  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  Boston, MA 02110-1301, USA.

*/

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/moduleparam.h>
#include <linux/firmware.h>
#include <linux/netdevice.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

#include <linux/io.h>

#define DRV_NAME "libertas_cs"

#include "decl.h"
#include "defs.h"
#include "dev.h"


/********************************************************************/
/* Module stuff                                                     */
/********************************************************************/

MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>");
MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards");
MODULE_LICENSE("GPL");



/********************************************************************/
/* Data structures                                                  */
/********************************************************************/

struct if_cs_card {
	struct pcmcia_device *p_dev;
	struct lbs_private *priv;
	void __iomem *iobase;
	bool align_regs;
	u32 model;
};


enum {
	MODEL_UNKNOWN = 0x00,
	MODEL_8305 = 0x01,
	MODEL_8381 = 0x02,
	MODEL_8385 = 0x03
};

static const struct lbs_fw_table fw_table[] = {
	{ MODEL_8305, "libertas/cf8305.bin", NULL },
	{ MODEL_8305, "libertas_cs_helper.fw", NULL },
	{ MODEL_8381, "libertas/cf8381_helper.bin", "libertas/cf8381.bin" },
	{ MODEL_8381, "libertas_cs_helper.fw", "libertas_cs.fw" },
	{ MODEL_8385, "libertas/cf8385_helper.bin", "libertas/cf8385.bin" },
	{ MODEL_8385, "libertas_cs_helper.fw", "libertas_cs.fw" },
	{ 0, NULL, NULL }
};
MODULE_FIRMWARE("libertas/cf8305.bin");
MODULE_FIRMWARE("libertas/cf8381_helper.bin");
MODULE_FIRMWARE("libertas/cf8381.bin");
MODULE_FIRMWARE("libertas/cf8385_helper.bin");
MODULE_FIRMWARE("libertas/cf8385.bin");
MODULE_FIRMWARE("libertas_cs_helper.fw");
MODULE_FIRMWARE("libertas_cs.fw");


/********************************************************************/
/* Hardware access                                                  */
/********************************************************************/

/* This define enables wrapper functions which allow you
   to dump all register accesses. You normally won't this,
   except for development */
/* #define DEBUG_IO */

#ifdef DEBUG_IO
static int debug_output = 0;
#else
/* This way the compiler optimizes the printk's away */
#define debug_output 0
#endif

static inline unsigned int if_cs_read8(struct if_cs_card *card, uint reg)
{
	unsigned int val = ioread8(card->iobase + reg);
	if (debug_output)
		printk(KERN_INFO "inb %08x<%02x\n", reg, val);
	return val;
}
static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg)
{
	unsigned int val = ioread16(card->iobase + reg);
	if (debug_output)
		printk(KERN_INFO "inw %08x<%04x\n", reg, val);
	return val;
}
static inline void if_cs_read16_rep(
	struct if_cs_card *card,
	uint reg,
	void *buf,
	unsigned long count)
{
	if (debug_output)
		printk(KERN_INFO "insw %08x<(0x%lx words)\n",
			reg, count);
	ioread16_rep(card->iobase + reg, buf, count);
}

static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val)
{
	if (debug_output)
		printk(KERN_INFO "outb %08x>%02x\n", reg, val);
	iowrite8(val, card->iobase + reg);
}

static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val)
{
	if (debug_output)
		printk(KERN_INFO "outw %08x>%04x\n", reg, val);
	iowrite16(val, card->iobase + reg);
}

static inline void if_cs_write16_rep(
	struct if_cs_card *card,
	uint reg,
	const void *buf,
	unsigned long count)
{
	if (debug_output)
		printk(KERN_INFO "outsw %08x>(0x%lx words)\n",
			reg,