drivers/pcmcia/m32r_cfc.c - kernel/msm-4.9 - Gitiles

 /*
  *  drivers/pcmcia/m32r_cfc.c
  *
  *  Device driver for the CFC functionality of M32R.
  *
  *  Copyright (c) 2001, 2002, 2003, 2004
  *    Hiroyuki Kondo, Naoto Sugai, Hayato Fujiwara
  */

 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/fcntl.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/timer.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/workqueue.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/bitops.h>
 #include <asm/irq.h>
 #include <asm/io.h>

 #include <pcmcia/ss.h>

 #undef MAX_IO_WIN	/* FIXME */
 #define MAX_IO_WIN 1
 #undef MAX_WIN		/* FIXME */
 #define MAX_WIN 1

 #include "m32r_cfc.h"

 /* Poll status interval -- 0 means default to interrupt */
 static int poll_interval = 0;

 typedef enum pcc_space { as_none = 0, as_comm, as_attr, as_io } pcc_as_t;

 typedef struct pcc_socket {
 	u_short			type, flags;
 	struct pcmcia_socket	socket;
 	unsigned int		number;
 	unsigned int		ioaddr;
 	u_long			mapaddr;
 	u_long			base;	/* PCC register base */
 	u_char			cs_irq1, cs_irq2, intr;
 	pccard_io_map		io_map[MAX_IO_WIN];
 	pccard_mem_map		mem_map[MAX_WIN];
 	u_char			io_win;
 	u_char			mem_win;
 	pcc_as_t		current_space;
 	u_char			last_iodbex;
 #ifdef CONFIG_PROC_FS
 	struct proc_dir_entry *proc;
 #endif
 } pcc_socket_t;

 static int pcc_sockets = 0;
 static pcc_socket_t socket[M32R_MAX_PCC] = {
 	{ 0, }, /* ... */
 };

 /*====================================================================*/

 static unsigned int pcc_get(u_short, unsigned int);
 static void pcc_set(u_short, unsigned int , unsigned int );

 static DEFINE_SPINLOCK(pcc_lock);

 #if !defined(CONFIG_PLAT_USRV)
 static inline u_long pcc_port2addr(unsigned long port, int size) {
 	u_long addr = 0;
 	u_long odd;

 	if (size == 1) {	/* byte access */
 		odd = (port&1) << 11;
 		port -= port & 1;
 		addr = CFC_IO_MAPBASE_BYTE - CFC_IOPORT_BASE + odd + port;
 	} else if (size == 2)
 		addr = CFC_IO_MAPBASE_WORD - CFC_IOPORT_BASE + port;

 	return addr;
 }
 #else	/* CONFIG_PLAT_USRV */
 static inline u_long pcc_port2addr(unsigned long port, int size) {
 	u_long odd;
 	u_long addr = ((port - CFC_IOPORT_BASE) & 0xf000) << 8;

 	if (size == 1) {	/* byte access */
 		odd = port & 1;
 		port -= odd;
 		odd <<= 11;
 		addr = (addr | CFC_IO_MAPBASE_BYTE) + odd + (port & 0xfff);
 	} else if (size == 2)	/* word access */
 		addr = (addr | CFC_IO_MAPBASE_WORD) + (port & 0xfff);

 	return addr;
 }
 #endif	/* CONFIG_PLAT_USRV */

 void pcc_ioread_byte(int sock, unsigned long port, void *buf, size_t size,
 	size_t nmemb, int flag)
 {
 	u_long addr;
 	unsigned char *bp = (unsigned char *)buf;
 	unsigned long flags;

 	pr_debug("m32r_cfc: pcc_ioread_byte: sock=%d, port=%#lx, buf=%p, "
 		 "size=%u, nmemb=%d, flag=%d\n",
 		  sock, port, buf, size, nmemb, flag);

 	addr = pcc_port2addr(port, 1);
 	if (!addr) {
 		printk("m32r_cfc:ioread_byte null port :%#lx\n",port);
 		return;
 	}
 	pr_debug("m32r_cfc: pcc_ioread_byte: addr=%#lx\n", addr);

 	spin_lock_irqsave(&pcc_lock, flags);
 	/* read Byte */
 	while (nmemb--)
 		*bp++ = readb(addr);
 	spin_unlock_irqrestore(&pcc_lock, flags);
 }

 void pcc_ioread_word(int sock, unsigned long port, void *buf, size_t size,
 	size_t nmemb, int flag)
 {
 	u_long addr;
 	unsigned short *bp = (unsigned short *)buf;
 	unsigned long flags;

 	pr_debug("m32r_cfc: pcc_ioread_word: sock=%d, port=%#lx, "
 		 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
 		 sock, port, buf, size, nmemb, flag);

 	if (size != 2)
 		printk("m32r_cfc: ioread_word :illigal size %u : %#lx\n", size,
 			port);
 	if (size == 9)
 		printk("m32r_cfc: ioread_word :insw \n");

 	addr = pcc_port2addr(port, 2);
 	if (!addr) {
 		printk("m32r_cfc:ioread_word null port :%#lx\n",port);
 		return;
 	}
 	pr_debug("m32r_cfc: pcc_ioread_word: addr=%#lx\n", addr);

 	spin_lock_irqsave(&pcc_lock, flags);
 	/* read Word */
 	while (nmemb--)
 		*bp++ = readw(addr);
 	spin_unlock_irqrestore(&pcc_lock, flags);
 }

 void pcc_iowrite_byte(int sock, unsigned long port, void *buf, size_t size,
 	size_t nmemb, int flag)
 {
 	u_long addr;
 	unsigned char *bp = (unsigned char *)buf;
 	unsigned long flags;

 	pr_debug("m32r_cfc: pcc_iowrite_byte: sock=%d, port=%#lx, "
 		 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
 		 sock, port, buf, size, nmemb, flag);

 	/* write Byte */
 	addr = pcc_port2addr(port, 1);
 	if (!addr) {
 		printk("m32r_cfc:iowrite_byte null port:%#lx\n",port);
 		return;
 	}
 	pr_debug("m32r_cfc: pcc_iowrite_byte: addr=%#lx\n", addr);

 	spin_lock_irqsave(&pcc_lock, flags);
 	while (nmemb--)
 		writeb(*bp++, addr);
 	spin_unlock_irqrestore(&pcc_lock, flags);
 }

 void pcc_iowrite_word(int sock, unsigned long port, void *buf, size_t size,
 	size_t nmemb, int flag)
 {
 	u_long addr;
 	unsigned short *bp = (unsigned short *)buf;
 	unsigned long flags;

 	pr_debug("m32r_cfc: pcc_iowrite_word: sock=%d, port=%#lx, "
 		 "buf=%p, size=%u, nmemb=%d, flag=%d\n",
 		 sock, port, buf, size, nmemb, flag);

 	if(size != 2)
 		printk("m32r_cfc: iowrite_word :illigal size %u : %#lx\n",
 			size, port);
 	if(size == 9)
 		printk("m32r_cfc: iowrite_word :outsw \n");

 	addr = pcc_port2addr(port, 2);
 	if (!addr) {
 		printk("m32r_cfc:iowrite_word null addr :%#lx\n",port);
 		return;
 	}
 #if 1
 	if (addr & 1) {
 		printk("m32r_cfc:iowrite_word port addr (%#lx):%#lx\n", port,
 			addr);
 		return;
 	}
 #endif
 	pr_debug("m32r_cfc: pcc_iowrite_word: addr=%#lx\n", addr);

 	spin_lock_irqsave(&pcc_lock, flags);
 	while (nmemb--)
 		writew(*bp++, addr);
 	spin_unlock_irqrestore(&pcc_lock, flags);
 }

 /*====================================================================*/

 #define IS_REGISTERED		0x2000
 #define IS_ALIVE		0x8000

 typedef struct pcc_t {
 	char			*name;
 	u_short			flags;
 } pcc_t;

 static pcc_t pcc[] = {
 #if !defined(CONFIG_PLAT_USRV)
 	{ "m32r_cfc", 0 }, { "", 0 },
 #else	/* CONFIG_PLAT_USRV */
 	{ "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "m32r_cfc", 0 },
 	{ "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "", 0 },
 #endif	/* CONFIG_PLAT_USRV */
 };

 static irqreturn_t pcc_interrupt(int, void *);

 /*====================================================================*/

 static struct timer_list poll_timer;

 static unsigned int pcc_get(u_short sock, unsigned int reg)
 {
 	unsigned int val = inw(reg);
 	pr_debug("m32r_cfc: pcc_get: reg(0x%08x)=0x%04x\n", reg, val);
 	return val;
 }


 static void pcc_set(u_short sock, unsigned int reg, unsigned int data)
 {
 	outw(data, reg);
 	pr_debug("m32r_cfc: pcc_set: reg(0x%08x)=0x%04x\n", reg, data);
 }

 /*======================================================================

 	See if a card is present, powered up, in IO mode, and already
 	bound to a (non PC Card) Linux driver.  We leave these alone.

 	We make an exception for cards that seem to be serial devices.

 ======================================================================*/

 static int __init is_alive(u_short sock)
 {
 	unsigned int stat;

 	pr_debug("m32r_cfc: is_alive:\n");

 	printk("CF: ");
 	stat = pcc_get(sock, (unsigned int)PLD_CFSTS);
 	if (!stat)
 		printk("No ");
 	printk("Card is detected at socket %d : stat = 0x%08x\n", sock, stat);
 	pr_debug("m32r_cfc: is_alive: sock stat is 0x%04x\n", stat);

 	return 0;
 }

 static void add_pcc_socket(ulong base, int irq, ulong mapaddr,
 			   unsigned int ioaddr)
 {
 	pcc_socket_t *t = &socket[pcc_sockets];

 	pr_debug("m32r_cfc: add_pcc_socket: base=%#lx, irq=%d, "
 		 "mapaddr=%#lx, ioaddr=%08x\n",
 		 base, irq, mapaddr, ioaddr);

 	/* add sockets */
 	t->ioaddr = ioaddr;
 	t->mapaddr = mapaddr;
 #if !defined(CONFIG_PLAT_USRV)
 	t->base = 0;
 	t->flags = 0;
 	t->cs_irq1 = irq;		// insert irq
 	t->cs_irq2 = irq + 1;		// eject irq
 #else	/* CONFIG_PLAT_USRV */
 	t->base = base;
 	t->flags = 0;
 	t->cs_irq1 = 0;			// insert irq
 	t->cs_irq2 = 0;			// eject irq
 #endif	/* CONFIG_PLAT_USRV */

 	if (is_alive(pcc_sockets))
 		t->flags |= IS_ALIVE;

 	/* add pcc */
 #if !defined(CONFIG_PLAT_USRV)
 	request_region((unsigned int)PLD_CFRSTCR, 0x20, "m32r_cfc");
 #else	/* CONFIG_PLAT_USRV */
 	{
 		unsigned int reg_base;

 		reg_base = (unsigned int)PLD_CFRSTCR;
 		reg_base |= pcc_sockets << 8;
 		request_region(reg_base, 0x20, "m32r_cfc");
 	}
 #endif	/* CONFIG_PLAT_USRV */
 	printk(KERN_INFO "  %s ", pcc[pcc_sockets].name);
 	printk("pcc at 0x%08lx\n", t->base);

 	/* Update socket interrupt information, capabilities */
 	t->socket.features |= (SS_CAP_PCCARD | SS_CAP_STATIC_MAP);
 	t->socket.map_size = M32R_PCC_MAPSIZE;
 	t->socket.io_offset = ioaddr;	/* use for io access offset */
 	t->socket.irq_mask = 0;
 #if !defined(CONFIG_PLAT_USRV)
 	t->socket.pci_irq = PLD_IRQ_CFIREQ ;	/* card interrupt */
 #else	/* CONFIG_PLAT_USRV */
 	t->socket.pci_irq = PLD_IRQ_CF0 + pcc_sockets;
 #endif	/* CONFIG_PLAT_USRV */

 #ifndef CONFIG_PLAT_USRV
 	/* insert interrupt */
 	request_irq(irq, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
 #ifndef CONFIG_PLAT_MAPPI3
 	/* eject interrupt */
 	request_irq(irq+1, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
 #endif
 	pr_debug("m32r_cfc: enable CFMSK, RDYSEL\n");
 	pcc_set(pcc_sockets, (unsigned int)PLD_CFIMASK, 0x01);
 #endif	/* CONFIG_PLAT_USRV */
 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT)
 	pcc_set(pcc_sockets, (unsigned int)PLD_CFCR1, 0x0200);
 #endif
 	pcc_sockets++;

 	return;
 }


 /*====================================================================*/

 static irqreturn_t pcc_interrupt(int irq, void *dev)
 {
 	int i;
 	u_int events = 0;
 	int handled = 0;

 	pr_debug("m32r_cfc: pcc_interrupt: irq=%d, dev=%p\n", irq, dev);
 	for (i = 0; i < pcc_sockets; i++) {
 		if (socket[i].cs_irq1 != irq && socket[i].cs_irq2 != irq)
 			continue;

 		handled = 1;
 		pr_debug("m32r_cfc: pcc_interrupt: socket %d irq 0x%02x ",
 			i, irq);
 		events |= SS_DETECT;	/* insert or eject */
 		if (events)
 			pcmcia_parse_events(&socket[i].socket, events);
 	}
 	pr_debug("m32r_cfc: pcc_interrupt: done\n");

 	return IRQ_RETVAL(handled);
 } /* pcc_interrupt */

 static void pcc_interrupt_wrapper(u_long data)
 {
 	pr_debug("m32r_cfc: pcc_interrupt_wrapper:\n");
 	pcc_interrupt(0, NULL);
 	init_timer(&poll_timer);
 	poll_timer.expires = jiffies + poll_interval;
 	add_timer(&poll_timer);
 }

 /*====================================================================*/

 static int _pcc_get_status(u_short sock, u_int *value)
 {
 	u_int status;

 	pr_debug("m32r_cfc: _pcc_get_status:\n");
 	status = pcc_get(sock, (unsigned int)PLD_CFSTS);
 	*value = (status) ? SS_DETECT : 0;
 	pr_debug("m32r_cfc: _pcc_get_status: status=0x%08x\n", status);

 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT)
 	if ( status ) {
 		/* enable CF power */
 		status = inw((unsigned int)PLD_CPCR);
 		if (!(status & PLD_CPCR_CF)) {
 			pr_debug("m32r_cfc: _pcc_get_status: "
 				 "power on (CPCR=0x%08x)\n", status);
 			status |= PLD_CPCR_CF;
 			outw(status, (unsigned int)PLD_CPCR);
 			udelay(100);
 		}
 		*value |= SS_POWERON;

 		pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);/* enable buffer */
 		udelay(100);

 		*value |= SS_READY; 		/* always ready */
 		*value |= SS_3VCARD;
 	} else {
 		/* disable CF power */
 		status = inw((unsigned int)PLD_CPCR);
 		status &= ~PLD_CPCR_CF;
 		outw(status, (unsigned int)PLD_CPCR);
 		udelay(100);
 		pr_debug("m32r_cfc: _pcc_get_status: "
 			 "power off (CPCR=0x%08x)\n", status);
 	}
 #elif defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
 	if ( status ) {
 		status = pcc_get(sock, (unsigned int)PLD_CPCR);
 		if (status == 0) { /* power off */
 			pcc_set(sock, (unsigned int)PLD_CPCR, 1);
 			pcc_set(sock, (unsigned int)PLD_CFBUFCR,0); /* force buffer off for ZA-36 */
 			udelay(50);
 		}
 		*value |= SS_POWERON;

 		pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);
 		udelay(50);
 		pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0101);
 		udelay(25); /* for IDE reset */
 		pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0100);
 		mdelay(2);  /* for IDE reset */

 		*value |= SS_READY;
 		*value |= SS_3VCARD;
 	} else {
 		/* disable CF power */
 	        pcc_set(sock, (unsigned int)PLD_CPCR, 0);
 		udelay(100);
 		pr_debug("m32r_cfc: _pcc_get_status: "
 			 "power off (CPCR=0x%08x)\n", status);
 	}
 #else
 #error no platform configuration
 #endif
 	pr_debug("m32r_cfc: _pcc_get_status: GetStatus(%d) = %#4.4x\n",
 		 sock, *value);
 	return 0;
 } /* _get_status */

 /*====================================================================*/

 static int _pcc_set_socket(u_short sock, socket_state_t *state)
 {
 	pr_debug("m32r_cfc: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
 		  "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
 		  state->Vcc, state->Vpp, state->io_irq, state->csc_mask);

 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_USRV) || defined(CONFIG_PLAT_OPSPUT) || defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
 	if (state->Vcc) {
 		if ((state->Vcc != 50) && (state->Vcc != 33))
 			return -EINVAL;
 		/* accept 5V and 3.3V */
 	}
 #endif
 	if (state->flags & SS_RESET) {
 		pr_debug(":RESET\n");
 		pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x101);
 	}else{
 		pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x100);
 	}
 	if (state->flags & SS_OUTPUT_ENA){
 		pr_debug(":OUTPUT_ENA\n");
 		/* bit clear */
 		pcc_set(sock,(unsigned int)PLD_CFBUFCR,0);
 	} else {
 		pcc_set(sock,(unsigned int)PLD_CFBUFCR,1);
 	}

 	if(state->flags & SS_IOCARD){
 		pr_debug(":IOCARD");
 	}
 	if (state->flags & SS_PWR_AUTO) {
 		pr_debug(":PWR_AUTO");
 	}
 	if (state->csc_mask & SS_DETECT)
 		pr_debug(":csc-SS_DETECT");
 	if (state->flags & SS_IOCARD) {
 		if (state->csc_mask & SS_STSCHG)
 			pr_debug(":STSCHG");
 	} else {
 		if (state->csc_mask & SS_BATDEAD)
 			pr_debug(":BATDEAD");
 		if (state->csc_mask & SS_BATWARN)
 			pr_debug(":BATWARN");
 		if (state->csc_mask & SS_READY)
 			pr_debug(":READY");
 	}
 	pr_debug("\n");
 	return 0;
 } /* _set_socket */

 /*====================================================================*/

 static int _pcc_set_io_map(u_short sock, struct pccard_io_map *io)
 {
 	u_char map;

 	pr_debug("m32r_cfc: SetIOMap(%d, %d, %#2.2x, %d ns, "
 		  "%#llx-%#llx)\n", sock, io->map, io->flags,
 		  io->speed, (unsigned long long)io->start,
 		  (unsigned long long)io->stop);
 	map = io->map;

 	return 0;
 } /* _set_io_map */

 /*====================================================================*/

 static int _pcc_set_mem_map(u_short sock, struct pccard_mem_map *mem)
 {

 	u_char map = mem->map;
 	u_long addr;
 	pcc_socket_t *t = &socket[sock];

 	pr_debug("m32r_cfc: SetMemMap(%d, %d, %#2.2x, %d ns, "
 		 "%#llx, %#x)\n", sock, map, mem->flags,
 		 mem->speed, (unsigned long long)mem->static_start,
 		 mem->card_start);

 	/*
 	 * sanity check
 	 */
 	if ((map > MAX_WIN) || (mem->card_start > 0x3ffffff)){
 		return -EINVAL;
 	}

 	/*
 	 * de-activate
 	 */
 	if ((mem->flags & MAP_ACTIVE) == 0) {
 		t->current_space = as_none;
 		return 0;
 	}

 	/*
 	 * Set mode
 	 */
 	if (mem->flags & MAP_ATTRIB) {
 		t->current_space = as_attr;
 	} else {
 		t->current_space = as_comm;
 	}

 	/*
 	 * Set address
 	 */
 	addr = t->mapaddr + (mem->card_start & M32R_PCC_MAPMASK);
 	mem->static_start = addr + mem->card_start;

 	return 0;

 } /* _set_mem_map */

 #if 0 /* driver model ordering issue */
 /*======================================================================

 	Routines for accessing socket information and register dumps via
 	/proc/bus/pccard/...

 ======================================================================*/

 static ssize_t show_info(struct class_device *class_dev, char *buf)
 {
 	pcc_socket_t *s = container_of(class_dev, struct pcc_socket,
 		socket.dev);

 	return sprintf(buf, "type:     %s\nbase addr:    0x%08lx\n",
 		pcc[s->type].name, s->base);
 }

 static ssize_t show_exca(struct class_device *class_dev, char *buf)
 {
 	/* FIXME */

 	return 0;
 }

 static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
 static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
 #endif

 /*====================================================================*/

 /* this is horribly ugly... proper locking needs to be done here at
  * some time... */
 #define LOCKED(x) do {					\
 	int retval;					\
 	unsigned long flags;				\
 	spin_lock_irqsave(&pcc_lock, flags);		\
 	retval = x;					\
 	spin_unlock_irqrestore(&pcc_lock, flags);	\
 	return retval;					\
 } while (0)


 static int pcc_get_status(struct pcmcia_socket *s, u_int *value)
 {
 	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

 	if (socket[sock].flags & IS_ALIVE) {
 		dev_dbg(&s->dev, "pcc_get_status: sock(%d) -EINVAL\n", sock);
 		*value = 0;
 		return -EINVAL;
 	}
 	dev_dbg(&s->dev, "pcc_get_status: sock(%d)\n", sock);
 	LOCKED(_pcc_get_status(sock, value));
 }

 static int pcc_set_socket(struct pcmcia_socket *s, socket_state_t *state)
 {
 	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

 	if (socket[sock].flags & IS_ALIVE) {
 		dev_dbg(&s->dev, "pcc_set_socket: sock(%d) -EINVAL\n", sock);
 		return -EINVAL;
 	}
 	dev_dbg(&s->dev, "pcc_set_socket: sock(%d)\n", sock);
 	LOCKED(_pcc_set_socket(sock, state));
 }

 static int pcc_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
 {
 	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

 	if (socket[sock].flags & IS_ALIVE) {
 		dev_dbg(&s->dev, "pcc_set_io_map: sock(%d) -EINVAL\n", sock);
 		return -EINVAL;
 	}
 	dev_dbg(&s->dev, "pcc_set_io_map: sock(%d)\n", sock);
 	LOCKED(_pcc_set_io_map(sock, io));
 }

 static int pcc_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
 {
 	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

 	if (socket[sock].flags & IS_ALIVE) {
 		dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d) -EINVAL\n", sock);
 		return -EINVAL;
 	}
 	dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d)\n", sock);
 	LOCKED(_pcc_set_mem_map(sock, mem));
 }

 static int pcc_init(struct pcmcia_socket *s)
 {
 	dev_dbg(&s->dev, "pcc_init()\n");
 	return 0;
 }

 static struct pccard_operations pcc_operations = {
 	.init			= pcc_init,
 	.get_status		= pcc_get_status,
 	.set_socket		= pcc_set_socket,
 	.set_io_map		= pcc_set_io_map,
 	.set_mem_map		= pcc_set_mem_map,
 };


 /*====================================================================*/

 static struct platform_driver pcc_driver = {
 	.driver = {
 		.name		= "cfc",
 	},
 };

 static struct platform_device pcc_device = {
 	.name = "cfc",
 	.id = 0,
 };

 /*====================================================================*/

 static int __init init_m32r_pcc(void)
 {
 	int i, ret;

 	ret = platform_driver_register(&pcc_driver);
 	if (ret)
 		return ret;

 	ret = platform_device_register(&pcc_device);
 	if (ret){
 		platform_driver_unregister(&pcc_driver);
 		return ret;
 	}

 #if defined(CONFIG_PLAT_MAPPI2) || defined(CONFIG_PLAT_MAPPI3)
 	pcc_set(0, (unsigned int)PLD_CFCR0, 0x0f0f);
 	pcc_set(0, (unsigned int)PLD_CFCR1, 0x0200);
 #endif

 	pcc_sockets = 0;

 #if !defined(CONFIG_PLAT_USRV)
 	add_pcc_socket(M32R_PCC0_BASE, PLD_IRQ_CFC_INSERT, CFC_ATTR_MAPBASE,
 		       CFC_IOPORT_BASE);
 #else	/* CONFIG_PLAT_USRV */
 	{
 		ulong base, mapaddr;
 		unsigned int ioaddr;

 		for (i = 0 ; i < M32R_MAX_PCC ; i++) {
 			base = (ulong)PLD_CFRSTCR;
 			base = base | (i << 8);
 			ioaddr = (i + 1) << 12;
 			mapaddr = CFC_ATTR_MAPBASE | (i << 20);
 			add_pcc_socket(base, 0, mapaddr, ioaddr);
 		}
 	}
 #endif	/* CONFIG_PLAT_USRV */

 	if (pcc_sockets == 0) {
 		printk("socket is not found.\n");
 		platform_device_unregister(&pcc_device);
 		platform_driver_unregister(&pcc_driver);
 		return -ENODEV;
 	}

 	/* Set up interrupt handler(s) */

 	for (i = 0 ; i < pcc_sockets ; i++) {
 		socket[i].socket.dev.parent = &pcc_device.dev;
 		socket[i].socket.ops = &pcc_operations;
 		socket[i].socket.resource_ops = &pccard_static_ops;
 		socket[i].socket.owner = THIS_MODULE;
 		socket[i].number = i;
 		ret = pcmcia_register_socket(&socket[i].socket);
 		if (!ret)
 			socket[i].flags |= IS_REGISTERED;

 #if 0	/* driver model ordering issue */
 		class_device_create_file(&socket[i].socket.dev,
 					 &class_device_attr_info);
 		class_device_create_file(&socket[i].socket.dev,
 					 &class_device_attr_exca);
 #endif
 	}

 	/* Finally, schedule a polling interrupt */
 	if (poll_interval != 0) {
 		poll_timer.function = pcc_interrupt_wrapper;
 		poll_timer.data = 0;
 		init_timer(&poll_timer);
 		poll_timer.expires = jiffies + poll_interval;
 		add_timer(&poll_timer);
 	}

 	return 0;
 } /* init_m32r_pcc */

 static void __exit exit_m32r_pcc(void)
 {
 	int i;

 	for (i = 0; i < pcc_sockets; i++)
 		if (socket[i].flags & IS_REGISTERED)
 			pcmcia_unregister_socket(&socket[i].socket);

 	platform_device_unregister(&pcc_device);
 	if (poll_interval != 0)
 		del_timer_sync(&poll_timer);

 	platform_driver_unregister(&pcc_driver);
 } /* exit_m32r_pcc */

 module_init(init_m32r_pcc);
 module_exit(exit_m32r_pcc);
 MODULE_LICENSE("Dual MPL/GPL");
 /*====================================================================*/
	/*
	* drivers/pcmcia/m32r_cfc.c
	*
	* Device driver for the CFC functionality of M32R.
	*
	* Copyright (c) 2001, 2002, 2003, 2004
	* Hiroyuki Kondo, Naoto Sugai, Hayato Fujiwara
	*/

	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/init.h>
	#include <linux/types.h>
	#include <linux/fcntl.h>
	#include <linux/string.h>
	#include <linux/kernel.h>
	#include <linux/errno.h>
	#include <linux/timer.h>
	#include <linux/ioport.h>
	#include <linux/delay.h>
	#include <linux/workqueue.h>
	#include <linux/interrupt.h>
	#include <linux/platform_device.h>
	#include <linux/bitops.h>
	#include <asm/irq.h>
	#include <asm/io.h>

	#include <pcmcia/ss.h>

	#undef MAX_IO_WIN /* FIXME */
	#define MAX_IO_WIN 1
	#undef MAX_WIN /* FIXME */
	#define MAX_WIN 1

	#include "m32r_cfc.h"

	/* Poll status interval -- 0 means default to interrupt */
	static int poll_interval = 0;

	typedef enum pcc_space { as_none = 0, as_comm, as_attr, as_io } pcc_as_t;

	typedef struct pcc_socket {
	u_short type, flags;
	struct pcmcia_socket socket;
	unsigned int number;
	unsigned int ioaddr;
	u_long mapaddr;
	u_long base; /* PCC register base */
	u_char cs_irq1, cs_irq2, intr;
	pccard_io_map io_map[MAX_IO_WIN];
	pccard_mem_map mem_map[MAX_WIN];
	u_char io_win;
	u_char mem_win;
	pcc_as_t current_space;
	u_char last_iodbex;
	#ifdef CONFIG_PROC_FS
	struct proc_dir_entry *proc;
	#endif
	} pcc_socket_t;

	static int pcc_sockets = 0;
	static pcc_socket_t socket[M32R_MAX_PCC] = {
	{ 0, }, /* ... */
	};

	/====================================================================/

	static unsigned int pcc_get(u_short, unsigned int);
	static void pcc_set(u_short, unsigned int , unsigned int );

	static DEFINE_SPINLOCK(pcc_lock);

	#if !defined(CONFIG_PLAT_USRV)
	static inline u_long pcc_port2addr(unsigned long port, int size) {
	u_long addr = 0;
	u_long odd;

	if (size == 1) { /* byte access */
	odd = (port&1) << 11;
	port -= port & 1;
	addr = CFC_IO_MAPBASE_BYTE - CFC_IOPORT_BASE + odd + port;
	} else if (size == 2)
	addr = CFC_IO_MAPBASE_WORD - CFC_IOPORT_BASE + port;

	return addr;
	}
	#else /* CONFIG_PLAT_USRV */
	static inline u_long pcc_port2addr(unsigned long port, int size) {
	u_long odd;
	u_long addr = ((port - CFC_IOPORT_BASE) & 0xf000) << 8;

	if (size == 1) { /* byte access */
	odd = port & 1;
	port -= odd;
	odd <<= 11;
	addr = (addr \| CFC_IO_MAPBASE_BYTE) + odd + (port & 0xfff);
	} else if (size == 2) /* word access */
	addr = (addr \| CFC_IO_MAPBASE_WORD) + (port & 0xfff);

	return addr;
	}
	#endif /* CONFIG_PLAT_USRV */

	void pcc_ioread_byte(int sock, unsigned long port, void *buf, size_t size,
	size_t nmemb, int flag)
	{
	u_long addr;
	unsigned char bp = (unsigned char )buf;
	unsigned long flags;

	pr_debug("m32r_cfc: pcc_ioread_byte: sock=%d, port=%#lx, buf=%p, "
	"size=%u, nmemb=%d, flag=%d\n",
	sock, port, buf, size, nmemb, flag);

	addr = pcc_port2addr(port, 1);
	if (!addr) {
	printk("m32r_cfc:ioread_byte null port :%#lx\n",port);
	return;
	}
	pr_debug("m32r_cfc: pcc_ioread_byte: addr=%#lx\n", addr);

	spin_lock_irqsave(&pcc_lock, flags);
	/* read Byte */
	while (nmemb--)
	*bp++ = readb(addr);
	spin_unlock_irqrestore(&pcc_lock, flags);
	}

	void pcc_ioread_word(int sock, unsigned long port, void *buf, size_t size,
	size_t nmemb, int flag)
	{
	u_long addr;
	unsigned short bp = (unsigned short )buf;
	unsigned long flags;

	pr_debug("m32r_cfc: pcc_ioread_word: sock=%d, port=%#lx, "
	"buf=%p, size=%u, nmemb=%d, flag=%d\n",
	sock, port, buf, size, nmemb, flag);

	if (size != 2)
	printk("m32r_cfc: ioread_word :illigal size %u : %#lx\n", size,
	port);
	if (size == 9)
	printk("m32r_cfc: ioread_word :insw \n");

	addr = pcc_port2addr(port, 2);
	if (!addr) {
	printk("m32r_cfc:ioread_word null port :%#lx\n",port);
	return;
	}
	pr_debug("m32r_cfc: pcc_ioread_word: addr=%#lx\n", addr);

	spin_lock_irqsave(&pcc_lock, flags);
	/* read Word */
	while (nmemb--)
	*bp++ = readw(addr);
	spin_unlock_irqrestore(&pcc_lock, flags);
	}

	void pcc_iowrite_byte(int sock, unsigned long port, void *buf, size_t size,
	size_t nmemb, int flag)
	{
	u_long addr;
	unsigned char bp = (unsigned char )buf;
	unsigned long flags;

	pr_debug("m32r_cfc: pcc_iowrite_byte: sock=%d, port=%#lx, "
	"buf=%p, size=%u, nmemb=%d, flag=%d\n",
	sock, port, buf, size, nmemb, flag);

	/* write Byte */
	addr = pcc_port2addr(port, 1);
	if (!addr) {
	printk("m32r_cfc:iowrite_byte null port:%#lx\n",port);
	return;
	}
	pr_debug("m32r_cfc: pcc_iowrite_byte: addr=%#lx\n", addr);

	spin_lock_irqsave(&pcc_lock, flags);
	while (nmemb--)
	writeb(*bp++, addr);
	spin_unlock_irqrestore(&pcc_lock, flags);
	}

	void pcc_iowrite_word(int sock, unsigned long port, void *buf, size_t size,
	size_t nmemb, int flag)
	{
	u_long addr;
	unsigned short bp = (unsigned short )buf;
	unsigned long flags;

	pr_debug("m32r_cfc: pcc_iowrite_word: sock=%d, port=%#lx, "
	"buf=%p, size=%u, nmemb=%d, flag=%d\n",
	sock, port, buf, size, nmemb, flag);

	if(size != 2)
	printk("m32r_cfc: iowrite_word :illigal size %u : %#lx\n",
	size, port);
	if(size == 9)
	printk("m32r_cfc: iowrite_word :outsw \n");

	addr = pcc_port2addr(port, 2);
	if (!addr) {
	printk("m32r_cfc:iowrite_word null addr :%#lx\n",port);
	return;
	}
	#if 1
	if (addr & 1) {
	printk("m32r_cfc:iowrite_word port addr (%#lx):%#lx\n", port,
	addr);
	return;
	}
	#endif
	pr_debug("m32r_cfc: pcc_iowrite_word: addr=%#lx\n", addr);

	spin_lock_irqsave(&pcc_lock, flags);
	while (nmemb--)
	writew(*bp++, addr);
	spin_unlock_irqrestore(&pcc_lock, flags);
	}

	/====================================================================/

	#define IS_REGISTERED 0x2000
	#define IS_ALIVE 0x8000

	typedef struct pcc_t {
	char *name;
	u_short flags;
	} pcc_t;

	static pcc_t pcc[] = {
	#if !defined(CONFIG_PLAT_USRV)
	{ "m32r_cfc", 0 }, { "", 0 },
	#else /* CONFIG_PLAT_USRV */
	{ "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "m32r_cfc", 0 },
	{ "m32r_cfc", 0 }, { "m32r_cfc", 0 }, { "", 0 },
	#endif /* CONFIG_PLAT_USRV */
	};

	static irqreturn_t pcc_interrupt(int, void *);

	/====================================================================/

	static struct timer_list poll_timer;

	static unsigned int pcc_get(u_short sock, unsigned int reg)
	{
	unsigned int val = inw(reg);
	pr_debug("m32r_cfc: pcc_get: reg(0x%08x)=0x%04x\n", reg, val);
	return val;
	}


	static void pcc_set(u_short sock, unsigned int reg, unsigned int data)
	{
	outw(data, reg);
	pr_debug("m32r_cfc: pcc_set: reg(0x%08x)=0x%04x\n", reg, data);
	}

	/*======================================================================

	See if a card is present, powered up, in IO mode, and already
	bound to a (non PC Card) Linux driver. We leave these alone.

	We make an exception for cards that seem to be serial devices.

	======================================================================*/

	static int __init is_alive(u_short sock)
	{
	unsigned int stat;

	pr_debug("m32r_cfc: is_alive:\n");

	printk("CF: ");
	stat = pcc_get(sock, (unsigned int)PLD_CFSTS);
	if (!stat)
	printk("No ");
	printk("Card is detected at socket %d : stat = 0x%08x\n", sock, stat);
	pr_debug("m32r_cfc: is_alive: sock stat is 0x%04x\n", stat);

	return 0;
	}

	static void add_pcc_socket(ulong base, int irq, ulong mapaddr,
	unsigned int ioaddr)
	{
	pcc_socket_t *t = &socket[pcc_sockets];

	pr_debug("m32r_cfc: add_pcc_socket: base=%#lx, irq=%d, "
	"mapaddr=%#lx, ioaddr=%08x\n",
	base, irq, mapaddr, ioaddr);

	/* add sockets */
	t->ioaddr = ioaddr;
	t->mapaddr = mapaddr;
	#if !defined(CONFIG_PLAT_USRV)
	t->base = 0;
	t->flags = 0;
	t->cs_irq1 = irq; // insert irq
	t->cs_irq2 = irq + 1; // eject irq
	#else /* CONFIG_PLAT_USRV */
	t->base = base;
	t->flags = 0;
	t->cs_irq1 = 0; // insert irq
	t->cs_irq2 = 0; // eject irq
	#endif /* CONFIG_PLAT_USRV */

	if (is_alive(pcc_sockets))
	t->flags \|= IS_ALIVE;

	/* add pcc */
	#if !defined(CONFIG_PLAT_USRV)
	request_region((unsigned int)PLD_CFRSTCR, 0x20, "m32r_cfc");
	#else /* CONFIG_PLAT_USRV */
	{
	unsigned int reg_base;

	reg_base = (unsigned int)PLD_CFRSTCR;
	reg_base \|= pcc_sockets << 8;
	request_region(reg_base, 0x20, "m32r_cfc");
	}
	#endif /* CONFIG_PLAT_USRV */
	printk(KERN_INFO " %s ", pcc[pcc_sockets].name);
	printk("pcc at 0x%08lx\n", t->base);

	/* Update socket interrupt information, capabilities */
	t->socket.features \|= (SS_CAP_PCCARD \| SS_CAP_STATIC_MAP);
	t->socket.map_size = M32R_PCC_MAPSIZE;
	t->socket.io_offset = ioaddr; /* use for io access offset */
	t->socket.irq_mask = 0;
	#if !defined(CONFIG_PLAT_USRV)
	t->socket.pci_irq = PLD_IRQ_CFIREQ ; /* card interrupt */
	#else /* CONFIG_PLAT_USRV */
	t->socket.pci_irq = PLD_IRQ_CF0 + pcc_sockets;
	#endif /* CONFIG_PLAT_USRV */

	#ifndef CONFIG_PLAT_USRV
	/* insert interrupt */
	request_irq(irq, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
	#ifndef CONFIG_PLAT_MAPPI3
	/* eject interrupt */
	request_irq(irq+1, pcc_interrupt, 0, "m32r_cfc", pcc_interrupt);
	#endif
	pr_debug("m32r_cfc: enable CFMSK, RDYSEL\n");
	pcc_set(pcc_sockets, (unsigned int)PLD_CFIMASK, 0x01);
	#endif /* CONFIG_PLAT_USRV */
	#if defined(CONFIG_PLAT_M32700UT) \|\| defined(CONFIG_PLAT_USRV) \|\| defined(CONFIG_PLAT_OPSPUT)
	pcc_set(pcc_sockets, (unsigned int)PLD_CFCR1, 0x0200);
	#endif
	pcc_sockets++;

	return;
	}


	/====================================================================/

	static irqreturn_t pcc_interrupt(int irq, void *dev)
	{
	int i;
	u_int events = 0;
	int handled = 0;

	pr_debug("m32r_cfc: pcc_interrupt: irq=%d, dev=%p\n", irq, dev);
	for (i = 0; i < pcc_sockets; i++) {
	if (socket[i].cs_irq1 != irq && socket[i].cs_irq2 != irq)
	continue;

	handled = 1;
	pr_debug("m32r_cfc: pcc_interrupt: socket %d irq 0x%02x ",
	i, irq);
	events \|= SS_DETECT; /* insert or eject */
	if (events)
	pcmcia_parse_events(&socket[i].socket, events);
	}
	pr_debug("m32r_cfc: pcc_interrupt: done\n");

	return IRQ_RETVAL(handled);
	} /* pcc_interrupt */

	static void pcc_interrupt_wrapper(u_long data)
	{
	pr_debug("m32r_cfc: pcc_interrupt_wrapper:\n");
	pcc_interrupt(0, NULL);
	init_timer(&poll_timer);
	poll_timer.expires = jiffies + poll_interval;
	add_timer(&poll_timer);
	}

	/====================================================================/

	static int _pcc_get_status(u_short sock, u_int *value)
	{
	u_int status;

	pr_debug("m32r_cfc: _pcc_get_status:\n");
	status = pcc_get(sock, (unsigned int)PLD_CFSTS);
	*value = (status) ? SS_DETECT : 0;
	pr_debug("m32r_cfc: _pcc_get_status: status=0x%08x\n", status);

	#if defined(CONFIG_PLAT_M32700UT) \|\| defined(CONFIG_PLAT_USRV) \|\| defined(CONFIG_PLAT_OPSPUT)
	if ( status ) {
	/* enable CF power */
	status = inw((unsigned int)PLD_CPCR);
	if (!(status & PLD_CPCR_CF)) {
	pr_debug("m32r_cfc: _pcc_get_status: "
	"power on (CPCR=0x%08x)\n", status);
	status \|= PLD_CPCR_CF;
	outw(status, (unsigned int)PLD_CPCR);
	udelay(100);
	}
	*value \|= SS_POWERON;

	pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);/* enable buffer */
	udelay(100);

	value \|= SS_READY; / always ready */
	*value \|= SS_3VCARD;
	} else {
	/* disable CF power */
	status = inw((unsigned int)PLD_CPCR);
	status &= ~PLD_CPCR_CF;
	outw(status, (unsigned int)PLD_CPCR);
	udelay(100);
	pr_debug("m32r_cfc: _pcc_get_status: "
	"power off (CPCR=0x%08x)\n", status);
	}
	#elif defined(CONFIG_PLAT_MAPPI2) \|\| defined(CONFIG_PLAT_MAPPI3)
	if ( status ) {
	status = pcc_get(sock, (unsigned int)PLD_CPCR);
	if (status == 0) { /* power off */
	pcc_set(sock, (unsigned int)PLD_CPCR, 1);
	pcc_set(sock, (unsigned int)PLD_CFBUFCR,0); /* force buffer off for ZA-36 */
	udelay(50);
	}
	*value \|= SS_POWERON;

	pcc_set(sock, (unsigned int)PLD_CFBUFCR,0);
	udelay(50);
	pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0101);
	udelay(25); /* for IDE reset */
	pcc_set(sock, (unsigned int)PLD_CFRSTCR, 0x0100);
	mdelay(2); /* for IDE reset */

	*value \|= SS_READY;
	*value \|= SS_3VCARD;
	} else {
	/* disable CF power */
	pcc_set(sock, (unsigned int)PLD_CPCR, 0);
	udelay(100);
	pr_debug("m32r_cfc: _pcc_get_status: "
	"power off (CPCR=0x%08x)\n", status);
	}
	#else
	#error no platform configuration
	#endif
	pr_debug("m32r_cfc: _pcc_get_status: GetStatus(%d) = %#4.4x\n",
	sock, *value);
	return 0;
	} /* _get_status */

	/====================================================================/

	static int _pcc_set_socket(u_short sock, socket_state_t *state)
	{
	pr_debug("m32r_cfc: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
	"io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
	state->Vcc, state->Vpp, state->io_irq, state->csc_mask);

	#if defined(CONFIG_PLAT_M32700UT) \|\| defined(CONFIG_PLAT_USRV) \|\| defined(CONFIG_PLAT_OPSPUT) \|\| defined(CONFIG_PLAT_MAPPI2) \|\| defined(CONFIG_PLAT_MAPPI3)
	if (state->Vcc) {
	if ((state->Vcc != 50) && (state->Vcc != 33))
	return -EINVAL;
	/* accept 5V and 3.3V */
	}
	#endif
	if (state->flags & SS_RESET) {
	pr_debug(":RESET\n");
	pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x101);
	}else{
	pcc_set(sock,(unsigned int)PLD_CFRSTCR,0x100);
	}
	if (state->flags & SS_OUTPUT_ENA){
	pr_debug(":OUTPUT_ENA\n");
	/* bit clear */
	pcc_set(sock,(unsigned int)PLD_CFBUFCR,0);
	} else {
	pcc_set(sock,(unsigned int)PLD_CFBUFCR,1);
	}

	if(state->flags & SS_IOCARD){
	pr_debug(":IOCARD");
	}
	if (state->flags & SS_PWR_AUTO) {
	pr_debug(":PWR_AUTO");
	}
	if (state->csc_mask & SS_DETECT)
	pr_debug(":csc-SS_DETECT");
	if (state->flags & SS_IOCARD) {
	if (state->csc_mask & SS_STSCHG)
	pr_debug(":STSCHG");
	} else {
	if (state->csc_mask & SS_BATDEAD)
	pr_debug(":BATDEAD");
	if (state->csc_mask & SS_BATWARN)
	pr_debug(":BATWARN");
	if (state->csc_mask & SS_READY)
	pr_debug(":READY");
	}
	pr_debug("\n");
	return 0;
	} /* _set_socket */

	/====================================================================/

	static int _pcc_set_io_map(u_short sock, struct pccard_io_map *io)
	{
	u_char map;

	pr_debug("m32r_cfc: SetIOMap(%d, %d, %#2.2x, %d ns, "
	"%#llx-%#llx)\n", sock, io->map, io->flags,
	io->speed, (unsigned long long)io->start,
	(unsigned long long)io->stop);
	map = io->map;

	return 0;
	} /* _set_io_map */

	/====================================================================/

	static int _pcc_set_mem_map(u_short sock, struct pccard_mem_map *mem)
	{

	u_char map = mem->map;
	u_long addr;
	pcc_socket_t *t = &socket[sock];

	pr_debug("m32r_cfc: SetMemMap(%d, %d, %#2.2x, %d ns, "
	"%#llx, %#x)\n", sock, map, mem->flags,
	mem->speed, (unsigned long long)mem->static_start,
	mem->card_start);

	/*
	* sanity check
	*/
	if ((map > MAX_WIN) \|\| (mem->card_start > 0x3ffffff)){
	return -EINVAL;
	}

	/*
	* de-activate
	*/
	if ((mem->flags & MAP_ACTIVE) == 0) {
	t->current_space = as_none;
	return 0;
	}

	/*
	* Set mode
	*/
	if (mem->flags & MAP_ATTRIB) {
	t->current_space = as_attr;
	} else {
	t->current_space = as_comm;
	}

	/*
	* Set address
	*/
	addr = t->mapaddr + (mem->card_start & M32R_PCC_MAPMASK);
	mem->static_start = addr + mem->card_start;

	return 0;

	} /* _set_mem_map */

	#if 0 /* driver model ordering issue */
	/*======================================================================

	Routines for accessing socket information and register dumps via
	/proc/bus/pccard/...

	======================================================================*/

	static ssize_t show_info(struct class_device class_dev, char buf)
	{
	pcc_socket_t *s = container_of(class_dev, struct pcc_socket,
	socket.dev);

	return sprintf(buf, "type: %s\nbase addr: 0x%08lx\n",
	pcc[s->type].name, s->base);
	}

	static ssize_t show_exca(struct class_device class_dev, char buf)
	{
	/* FIXME */

	return 0;
	}

	static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
	static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
	#endif

	/====================================================================/

	/* this is horribly ugly... proper locking needs to be done here at
	* some time... */
	#define LOCKED(x) do { \
	int retval; \
	unsigned long flags; \
	spin_lock_irqsave(&pcc_lock, flags); \
	retval = x; \
	spin_unlock_irqrestore(&pcc_lock, flags); \
	return retval; \
	} while (0)


	static int pcc_get_status(struct pcmcia_socket s, u_int value)
	{
	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

	if (socket[sock].flags & IS_ALIVE) {
	dev_dbg(&s->dev, "pcc_get_status: sock(%d) -EINVAL\n", sock);
	*value = 0;
	return -EINVAL;
	}
	dev_dbg(&s->dev, "pcc_get_status: sock(%d)\n", sock);
	LOCKED(_pcc_get_status(sock, value));
	}

	static int pcc_set_socket(struct pcmcia_socket s, socket_state_t state)
	{
	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

	if (socket[sock].flags & IS_ALIVE) {
	dev_dbg(&s->dev, "pcc_set_socket: sock(%d) -EINVAL\n", sock);
	return -EINVAL;
	}
	dev_dbg(&s->dev, "pcc_set_socket: sock(%d)\n", sock);
	LOCKED(_pcc_set_socket(sock, state));
	}

	static int pcc_set_io_map(struct pcmcia_socket s, struct pccard_io_map io)
	{
	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

	if (socket[sock].flags & IS_ALIVE) {
	dev_dbg(&s->dev, "pcc_set_io_map: sock(%d) -EINVAL\n", sock);
	return -EINVAL;
	}
	dev_dbg(&s->dev, "pcc_set_io_map: sock(%d)\n", sock);
	LOCKED(_pcc_set_io_map(sock, io));
	}

	static int pcc_set_mem_map(struct pcmcia_socket s, struct pccard_mem_map mem)
	{
	unsigned int sock = container_of(s, struct pcc_socket, socket)->number;

	if (socket[sock].flags & IS_ALIVE) {
	dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d) -EINVAL\n", sock);
	return -EINVAL;
	}
	dev_dbg(&s->dev, "pcc_set_mem_map: sock(%d)\n", sock);
	LOCKED(_pcc_set_mem_map(sock, mem));
	}

	static int pcc_init(struct pcmcia_socket *s)
	{
	dev_dbg(&s->dev, "pcc_init()\n");
	return 0;
	}

	static struct pccard_operations pcc_operations = {
	.init = pcc_init,
	.get_status = pcc_get_status,
	.set_socket = pcc_set_socket,
	.set_io_map = pcc_set_io_map,
	.set_mem_map = pcc_set_mem_map,
	};


	/====================================================================/

	static struct platform_driver pcc_driver = {
	.driver = {
	.name = "cfc",
	},
	};

	static struct platform_device pcc_device = {
	.name = "cfc",
	.id = 0,
	};

	/====================================================================/

	static int __init init_m32r_pcc(void)
	{
	int i, ret;

	ret = platform_driver_register(&pcc_driver);
	if (ret)
	return ret;

	ret = platform_device_register(&pcc_device);
	if (ret){
	platform_driver_unregister(&pcc_driver);
	return ret;
	}

	#if defined(CONFIG_PLAT_MAPPI2) \|\| defined(CONFIG_PLAT_MAPPI3)
	pcc_set(0, (unsigned int)PLD_CFCR0, 0x0f0f);
	pcc_set(0, (unsigned int)PLD_CFCR1, 0x0200);
	#endif

	pcc_sockets = 0;

	#if !defined(CONFIG_PLAT_USRV)
	add_pcc_socket(M32R_PCC0_BASE, PLD_IRQ_CFC_INSERT, CFC_ATTR_MAPBASE,
	CFC_IOPORT_BASE);
	#else /* CONFIG_PLAT_USRV */
	{
	ulong base, mapaddr;
	unsigned int ioaddr;

	for (i = 0 ; i < M32R_MAX_PCC ; i++) {
	base = (ulong)PLD_CFRSTCR;
	base = base \| (i << 8);
	ioaddr = (i + 1) << 12;
	mapaddr = CFC_ATTR_MAPBASE \| (i << 20);
	add_pcc_socket(base, 0, mapaddr, ioaddr);
	}
	}
	#endif /* CONFIG_PLAT_USRV */

	if (pcc_sockets == 0) {
	printk("socket is not found.\n");
	platform_device_unregister(&pcc_device);
	platform_driver_unregister(&pcc_driver);
	return -ENODEV;
	}

	/* Set up interrupt handler(s) */

	for (i = 0 ; i < pcc_sockets ; i++) {
	socket[i].socket.dev.parent = &pcc_device.dev;
	socket[i].socket.ops = &pcc_operations;
	socket[i].socket.resource_ops = &pccard_static_ops;
	socket[i].socket.owner = THIS_MODULE;
	socket[i].number = i;
	ret = pcmcia_register_socket(&socket[i].socket);
	if (!ret)
	socket[i].flags \|= IS_REGISTERED;

	#if 0 /* driver model ordering issue */
	class_device_create_file(&socket[i].socket.dev,
	&class_device_attr_info);
	class_device_create_file(&socket[i].socket.dev,
	&class_device_attr_exca);
	#endif
	}

	/* Finally, schedule a polling interrupt */
	if (poll_interval != 0) {
	poll_timer.function = pcc_interrupt_wrapper;
	poll_timer.data = 0;
	init_timer(&poll_timer);
	poll_timer.expires = jiffies + poll_interval;
	add_timer(&poll_timer);
	}

	return 0;
	} /* init_m32r_pcc */

	static void __exit exit_m32r_pcc(void)
	{
	int i;

	for (i = 0; i < pcc_sockets; i++)
	if (socket[i].flags & IS_REGISTERED)
	pcmcia_unregister_socket(&socket[i].socket);

	platform_device_unregister(&pcc_device);
	if (poll_interval != 0)
	del_timer_sync(&poll_timer);

	platform_driver_unregister(&pcc_driver);
	} /* exit_m32r_pcc */

	module_init(init_m32r_pcc);
	module_exit(exit_m32r_pcc);
	MODULE_LICENSE("Dual MPL/GPL");
	/====================================================================/