Initial import

1 files changed, 758 insertions, 0 deletions

diff --git a/drivers/pcmcia/vrc4171_card.c b/drivers/pcmcia/vrc4171_card.c
new file mode 100644
index 000000000..21973d55a
--- /dev/null
+++ b/drivers/pcmcia/vrc4171_card.c
@@ -0,0 +1,758 @@
+/*
+ * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
+ *
+ * Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ *  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; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <pcmcia/ss.h>
+
+#include "i82365.h"
+
+MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
+MODULE_LICENSE("GPL");
+
+#define CARD_MAX_SLOTS		2
+#define CARD_SLOTA		0
+#define CARD_SLOTB		1
+#define CARD_SLOTB_OFFSET	0x40
+
+#define CARD_MEM_START		0x10000000
+#define CARD_MEM_END		0x13ffffff
+#define CARD_MAX_MEM_OFFSET	0x3ffffff
+#define CARD_MAX_MEM_SPEED	1000
+
+#define CARD_CONTROLLER_INDEX	0x03e0
+#define CARD_CONTROLLER_DATA	0x03e1
+ /* Power register */
+  #define VPP_GET_VCC		0x01
+  #define POWER_ENABLE		0x10
+ #define CARD_VOLTAGE_SENSE	0x1f
+  #define VCC_3VORXV_CAPABLE	0x00
+  #define VCC_XV_ONLY		0x01
+  #define VCC_3V_CAPABLE	0x02
+  #define VCC_5V_ONLY		0x03
+ #define CARD_VOLTAGE_SELECT	0x2f
+  #define VCC_3V		0x01
+  #define VCC_5V		0x00
+  #define VCC_XV		0x02
+  #define VCC_STATUS_3V		0x02
+  #define VCC_STATUS_5V		0x01
+  #define VCC_STATUS_XV		0x03
+ #define GLOBAL_CONTROL		0x1e
+  #define EXWRBK		0x04
+  #define IRQPM_EN		0x08
+  #define CLRPMIRQ		0x10
+
+#define INTERRUPT_STATUS	0x05fa
+ #define IRQ_A			0x02
+ #define IRQ_B			0x04
+
+#define CONFIGURATION1		0x05fe
+ #define SLOTB_CONFIG		0xc000
+ #define SLOTB_NONE		0x0000
+ #define SLOTB_PCCARD		0x4000
+ #define SLOTB_CF		0x8000
+ #define SLOTB_FLASHROM		0xc000
+
+#define CARD_CONTROLLER_START	CARD_CONTROLLER_INDEX
+#define CARD_CONTROLLER_END	CARD_CONTROLLER_DATA
+
+#define IO_MAX_MAPS	2
+#define MEM_MAX_MAPS	5
+
+typedef enum {
+	SLOT_PROBE = 0,
+	SLOT_NOPROBE_IO,
+	SLOT_NOPROBE_MEM,
+	SLOT_NOPROBE_ALL,
+	SLOT_INITIALIZED,
+} vrc4171_slot_t;
+
+typedef enum {
+	SLOTB_IS_NONE,
+	SLOTB_IS_PCCARD,
+	SLOTB_IS_CF,
+	SLOTB_IS_FLASHROM,
+} vrc4171_slotb_t;
+
+typedef struct vrc4171_socket {
+	vrc4171_slot_t slot;
+	struct pcmcia_socket pcmcia_socket;
+	char name[24];
+	int csc_irq;
+	int io_irq;
+	spinlock_t lock;
+} vrc4171_socket_t;
+
+static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
+static vrc4171_slotb_t vrc4171_slotb = SLOTB_IS_NONE;
+static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
+static unsigned int vrc4171_irq;
+static uint16_t vrc4171_irq_mask = 0xdeb8;
+
+static struct resource vrc4171_card_resource[3] = {
+	{	.name		= vrc4171_card_name,
+		.start		= CARD_CONTROLLER_START,
+		.end		= CARD_CONTROLLER_END,
+		.flags		= IORESOURCE_IO,	},
+	{	.name		= vrc4171_card_name,
+		.start		= INTERRUPT_STATUS,
+		.end		= INTERRUPT_STATUS,
+		.flags		= IORESOURCE_IO,	},
+	{	.name		= vrc4171_card_name,
+		.start		= CONFIGURATION1,
+		.end		= CONFIGURATION1,
+		.flags		= IORESOURCE_IO,	},
+};
+
+static struct platform_device vrc4171_card_device = {
+	.name		= vrc4171_card_name,
+	.id		= 0,
+	.num_resources	= 3,
+	.resource	= vrc4171_card_resource,
+};
+
+static inline uint16_t vrc4171_get_irq_status(void)
+{
+	return inw(INTERRUPT_STATUS);
+}
+
+static inline void vrc4171_set_multifunction_pin(vrc4171_slotb_t config)
+{
+	uint16_t config1;
+
+	config1 = inw(CONFIGURATION1);
+	config1 &= ~SLOTB_CONFIG;
+
+	switch (config) {
+	case SLOTB_IS_NONE:
+		config1 |= SLOTB_NONE;
+		break;
+	case SLOTB_IS_PCCARD:
+		config1 |= SLOTB_PCCARD;
+		break;
+	case SLOTB_IS_CF:
+		config1 |= SLOTB_CF;
+		break;
+	case SLOTB_IS_FLASHROM:
+		config1 |= SLOTB_FLASHROM;
+		break;
+	default:
+		break;
+	}
+
+	outw(config1, CONFIGURATION1);
+}
+
+static inline uint8_t exca_read_byte(int slot, uint8_t index)
+{
+	if (slot == CARD_SLOTB)
+		index += CARD_SLOTB_OFFSET;
+
+	outb(index, CARD_CONTROLLER_INDEX);
+	return inb(CARD_CONTROLLER_DATA);
+}
+
+static inline uint16_t exca_read_word(int slot, uint8_t index)
+{
+	uint16_t data;
+
+	if (slot == CARD_SLOTB)
+		index += CARD_SLOTB_OFFSET;
+
+	outb(index++, CARD_CONTROLLER_INDEX);
+	data = inb(CARD_CONTROLLER_DATA);
+
+	outb(index, CARD_CONTROLLER_INDEX);
+	data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
+
+	return data;
+}
+
+static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
+{
+	if (slot == CARD_SLOTB)
+		index += CARD_SLOTB_OFFSET;
+
+	outb(index, CARD_CONTROLLER_INDEX);
+	outb(data, CARD_CONTROLLER_DATA);
+
+	return data;
+}
+
+static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
+{
+	if (slot == CARD_SLOTB)
+		index += CARD_SLOTB_OFFSET;
+
+	outb(index++, CARD_CONTROLLER_INDEX);
+	outb(data, CARD_CONTROLLER_DATA);
+
+	outb(index, CARD_CONTROLLER_INDEX);
+	outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
+
+	return data;
+}
+
+static inline int search_nonuse_irq(void)
+{
+	int i;
+
+	for (i = 0; i < 16; i++) {
+		if (vrc4171_irq_mask & (1 << i)) {
+			vrc4171_irq_mask &= ~(1 << i);
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+static int pccard_init(struct pcmcia_socket *sock)
+{
+	vrc4171_socket_t *socket;
+	unsigned int slot;
+
+	sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
+	sock->irq_mask = 0;
+	sock->map_size = 0x1000;
+	sock->pci_irq = vrc4171_irq;
+
+	slot = sock->sock;
+	socket = &vrc4171_sockets[slot];
+	socket->csc_irq = search_nonuse_irq();
+	socket->io_irq = search_nonuse_irq();
+	spin_lock_init(&socket->lock);
+
+	return 0;
+}
+
+static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
+{
+	unsigned int slot;
+	uint8_t status, sense;
+	u_int val = 0;
+
+	if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
+		return -EINVAL;
+
+	slot = sock->sock;
+
+	status = exca_read_byte(slot, I365_STATUS);
+	if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
+		if (status & I365_CS_STSCHG)
+			val |= SS_STSCHG;
+	} else {
+		if (!(status & I365_CS_BVD1))
+			val |= SS_BATDEAD;
+		else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
+			val |= SS_BATWARN;
+	}
+	if ((status & I365_CS_DETECT) == I365_CS_DETECT)
+		val |= SS_DETECT;
+	if (status & I365_CS_WRPROT)
+		val |= SS_WRPROT;
+	if (status & I365_CS_READY)
+		val |= SS_READY;
+	if (status & I365_CS_POWERON)
+		val |= SS_POWERON;
+
+	sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
+	switch (sense) {
+	case VCC_3VORXV_CAPABLE:
+		val |= SS_3VCARD | SS_XVCARD;
+		break;
+	case VCC_XV_ONLY:
+		val |= SS_XVCARD;
+		break;
+	case VCC_3V_CAPABLE:
+		val |= SS_3VCARD;
+		break;
+	default:
+		/* 5V only */
+		break;
+	}
+
+	*value = val;
+
+	return 0;
+}
+
+static inline uint8_t set_Vcc_value(u_char Vcc)
+{
+	switch (Vcc) {
+	case 33:
+		return VCC_3V;
+	case 50:
+		return VCC_5V;
+	}
+
+	/* Small voltage is chosen for safety. */
+	return VCC_3V;
+}
+
+static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+	vrc4171_socket_t *socket;
+	unsigned int slot;
+	uint8_t voltage, power, control, cscint;
+
+	if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
+	    (state->Vpp != state->Vcc && state->Vpp != 0) ||
+	    (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
+		return -EINVAL;
+
+	slot = sock->sock;
+	socket = &vrc4171_sockets[slot];
+
+	spin_lock_irq(&socket->lock);
+
+	voltage = set_Vcc_value(state->Vcc);
+	exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
+
+	power = POWER_ENABLE;
+	if (state->Vpp == state->Vcc)
+		power |= VPP_GET_VCC;
+	if (state->flags & SS_OUTPUT_ENA)
+		power |= I365_PWR_OUT;
+	exca_write_byte(slot, I365_POWER, power);
+
+	control = 0;
+	if (state->io_irq != 0)
+		control |= socket->io_irq;
+	if (state->flags & SS_IOCARD)
+		control |= I365_PC_IOCARD;
+	if (state->flags & SS_RESET)
+		control	&= ~I365_PC_RESET;
+	else
+		control |= I365_PC_RESET;
+	exca_write_byte(slot, I365_INTCTL, control);
+
+        cscint = 0;
+        exca_write_byte(slot, I365_CSCINT, cscint);
+	exca_read_byte(slot, I365_CSC);	/* clear CardStatus change */
+	if (state->csc_mask != 0)
+		cscint |= socket->csc_irq << 8;
+	if (state->flags & SS_IOCARD) {
+		if (state->csc_mask & SS_STSCHG)
+			cscint |= I365_CSC_STSCHG;
+	} else {
+		if (state->csc_mask & SS_BATDEAD)
+			cscint |= I365_CSC_BVD1;
+		if (state->csc_mask & SS_BATWARN)
+			cscint |= I365_CSC_BVD2;
+	}
+	if (state->csc_mask & SS_READY)
+		cscint |= I365_CSC_READY;
+	if (state->csc_mask & SS_DETECT)
+		cscint |= I365_CSC_DETECT;
+        exca_write_byte(slot, I365_CSCINT, cscint);
+
+	spin_unlock_irq(&socket->lock);
+
+	return 0;
+}
+
+static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
+{
+	unsigned int slot;
+	uint8_t ioctl, addrwin;
+	u_char map;
+
+	if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
+	    io == NULL || io->map >= IO_MAX_MAPS ||
+	    io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
+		return -EINVAL;
+
+	slot = sock->sock;
+	map = io->map;
+
+	addrwin = exca_read_byte(slot, I365_ADDRWIN);
+	if (addrwin & I365_ENA_IO(map)) {
+		addrwin &= ~I365_ENA_IO(map);
+		exca_write_byte(slot, I365_ADDRWIN, addrwin);
+	}
+
+	exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
+	exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
+
+	ioctl = 0;
+	if (io->speed > 0)
+		ioctl |= I365_IOCTL_WAIT(map);
+	if (io->flags & MAP_16BIT)
+		ioctl |= I365_IOCTL_16BIT(map);
+	if (io->flags & MAP_AUTOSZ)
+		ioctl |= I365_IOCTL_IOCS16(map);
+	if (io->flags & MAP_0WS)
+		ioctl |= I365_IOCTL_0WS(map);
+	exca_write_byte(slot, I365_IOCTL, ioctl);
+
+	if (io->flags & MAP_ACTIVE) {
+		addrwin |= I365_ENA_IO(map);
+		exca_write_byte(slot, I365_ADDRWIN, addrwin);
+	}
+
+	return 0;
+}
+
+static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
+{
+	unsigned int slot;
+	uint16_t start, stop, offset;
+	uint8_t addrwin;
+	u_char map;
+
+	if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
+	    mem == NULL || mem->map >= MEM_MAX_MAPS ||
+	    mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
+	    mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
+	    mem->res->start > mem->res->end ||
+	    mem->card_start > CARD_MAX_MEM_OFFSET ||
+	    mem->speed > CARD_MAX_MEM_SPEED)
+		return -EINVAL;
+
+	slot = sock->sock;
+	map = mem->map;
+
+	addrwin = exca_read_byte(slot, I365_ADDRWIN);
+	if (addrwin & I365_ENA_MEM(map)) {
+		addrwin &= ~I365_ENA_MEM(map);
+		exca_write_byte(slot, I365_ADDRWIN, addrwin);
+	}
+
+	start = (mem->res->start >> 12) & 0x3fff;
+	if (mem->flags & MAP_16BIT)
+		start |= I365_MEM_16BIT;
+	exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
+
+	stop = (mem->res->end >> 12) & 0x3fff;
+	switch (mem->speed) {
+	case 0:
+		break;
+	case 1:
+		stop |= I365_MEM_WS0;
+		break;
+	case 2:
+		stop |= I365_MEM_WS1;
+		break;
+	default:
+		stop |= I365_MEM_WS0 | I365_MEM_WS1;
+		break;
+	}
+	exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
+
+	offset = (mem->card_start >> 12) & 0x3fff;
+	if (mem->flags & MAP_ATTRIB)
+		offset |= I365_MEM_REG;
+	if (mem->flags & MAP_WRPROT)
+		offset |= I365_MEM_WRPROT;
+	exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
+
+	if (mem->flags & MAP_ACTIVE) {
+		addrwin |= I365_ENA_MEM(map);
+		exca_write_byte(slot, I365_ADDRWIN, addrwin);
+	}
+
+	return 0;
+}
+
+static struct pccard_operations vrc4171_pccard_operations = {
+	.init			= pccard_init,
+	.get_status		= pccard_get_status,
+	.set_socket		= pccard_set_socket,
+	.set_io_map		= pccard_set_io_map,
+	.set_mem_map		= pccard_set_mem_map,
+};
+
+static inline unsigned int get_events(int slot)
+{
+	unsigned int events = 0;
+	uint8_t status, csc;
+
+	status = exca_read_byte(slot, I365_STATUS);
+	csc = exca_read_byte(slot, I365_CSC);
+
+	if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
+		if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
+			events |= SS_STSCHG;
+	} else {
+		if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
+			if (!(status & I365_CS_BVD1))
+				events |= SS_BATDEAD;
+			else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
+				events |= SS_BATWARN;
+		}
+	}
+	if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
+		events |= SS_READY;
+	if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
+		events |= SS_DETECT;
+
+	return events;
+}
+
+static irqreturn_t pccard_interrupt(int irq, void *dev_id)
+{
+	vrc4171_socket_t *socket;
+	unsigned int events;
+	irqreturn_t retval = IRQ_NONE;
+	uint16_t status;
+
+	status = vrc4171_get_irq_status();
+	if (status & IRQ_A) {
+		socket = &vrc4171_sockets[CARD_SLOTA];
+		if (socket->slot == SLOT_INITIALIZED) {
+			if (status & (1 << socket->csc_irq)) {
+				events = get_events(CARD_SLOTA);
+				if (events != 0) {
+					pcmcia_parse_events(&socket->pcmcia_socket, events);
+					retval = IRQ_HANDLED;
+				}
+			}
+		}
+	}
+
+	if (status & IRQ_B) {
+		socket = &vrc4171_sockets[CARD_SLOTB];
+		if (socket->slot == SLOT_INITIALIZED) {
+			if (status & (1 << socket->csc_irq)) {
+				events = get_events(CARD_SLOTB);
+				if (events != 0) {
+					pcmcia_parse_events(&socket->pcmcia_socket, events);
+					retval = IRQ_HANDLED;
+				}
+			}
+		}
+	}
+
+	return retval;
+}
+
+static inline void reserve_using_irq(int slot)
+{
+	unsigned int irq;
+
+	irq = exca_read_byte(slot, I365_INTCTL);
+	irq &= 0x0f;
+	vrc4171_irq_mask &= ~(1 << irq);
+
+	irq = exca_read_byte(slot, I365_CSCINT);
+	irq = (irq & 0xf0) >> 4;
+	vrc4171_irq_mask &= ~(1 << irq);
+}
+
+static int vrc4171_add_sockets(void)
+{
+	vrc4171_socket_t *socket;
+	int slot, retval;
+
+	for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
+		if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
+			continue;
+
+		socket = &vrc4171_sockets[slot];
+		if (socket->slot != SLOT_PROBE) {
+			uint8_t addrwin;
+
+			switch (socket->slot) {
+			case SLOT_NOPROBE_MEM:
+				addrwin = exca_read_byte(slot, I365_ADDRWIN);
+				addrwin &= 0x1f;
+				exca_write_byte(slot, I365_ADDRWIN, addrwin);
+				break;
+			case SLOT_NOPROBE_IO:
+				addrwin = exca_read_byte(slot, I365_ADDRWIN);
+				addrwin &= 0xc0;
+				exca_write_byte(slot, I365_ADDRWIN, addrwin);
+				break;
+			default:
+				break;
+			}
+
+			reserve_using_irq(slot);
+			continue;
+		}
+
+		sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
+		socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
+		socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
+		socket->pcmcia_socket.owner = THIS_MODULE;
+
+		retval = pcmcia_register_socket(&socket->pcmcia_socket);
+		if (retval < 0)
+			return retval;
+
+		exca_write_byte(slot, I365_ADDRWIN, 0);
+		exca_write_byte(slot, GLOBAL_CONTROL, 0);
+
+		socket->slot = SLOT_INITIALIZED;
+	}
+
+	return 0;
+}
+
+static void vrc4171_remove_sockets(void)
+{
+	vrc4171_socket_t *socket;
+	int slot;
+
+	for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
+		if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
+			continue;
+
+		socket = &vrc4171_sockets[slot];
+		if (socket->slot == SLOT_INITIALIZED)
+			pcmcia_unregister_socket(&socket->pcmcia_socket);
+
+		socket->slot = SLOT_PROBE;
+	}
+}
+
+static int vrc4171_card_setup(char *options)
+{
+	if (options == NULL || *options == '\0')
+		return 1;
+
+	if (strncmp(options, "irq:", 4) == 0) {
+		int irq;
+		options += 4;
+		irq = simple_strtoul(options, &options, 0);
+		if (irq >= 0 && irq < nr_irqs)
+			vrc4171_irq = irq;
+
+		if (*options != ',')
+			return 1;
+		options++;
+	}
+
+	if (strncmp(options, "slota:", 6) == 0) {
+		options += 6;
+		if (*options != '\0') {
+			if (strncmp(options, "memnoprobe", 10) == 0) {
+				vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
+				options += 10;
+			} else if (strncmp(options, "ionoprobe", 9) == 0) {
+				vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
+				options += 9;
+			} else if ( strncmp(options, "noprobe", 7) == 0) {
+				vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
+				options += 7;
+			}
+
+			if (*options != ',')
+				return 1;
+			options++;
+		} else
+			return 1;
+
+	}
+
+	if (strncmp(options, "slotb:", 6) == 0) {
+		options += 6;
+		if (*options != '\0') {
+			if (strncmp(options, "pccard", 6) == 0) {
+				vrc4171_slotb = SLOTB_IS_PCCARD;
+				options += 6;
+			} else if (strncmp(options, "cf", 2) == 0) {
+				vrc4171_slotb = SLOTB_IS_CF;
+				options += 2;
+			} else if (strncmp(options, "flashrom", 8) == 0) {
+				vrc4171_slotb = SLOTB_IS_FLASHROM;
+				options += 8;
+			} else if (strncmp(options, "none", 4) == 0) {
+				vrc4171_slotb = SLOTB_IS_NONE;
+				options += 4;
+			}
+
+			if (*options != ',')
+				return 1;
+			options++;
+
+			if (strncmp(options, "memnoprobe", 10) == 0)
+				vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
+			if (strncmp(options, "ionoprobe", 9) == 0)
+				vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
+			if (strncmp(options, "noprobe", 7) == 0)
+				vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
+		}
+	}
+
+	return 1;
+}
+
+__setup("vrc4171_card=", vrc4171_card_setup);
+
+static struct platform_driver vrc4171_card_driver = {
+	.driver = {
+		.name		= vrc4171_card_name,
+	},
+};
+
+static int vrc4171_card_init(void)
+{
+	int retval;
+
+	retval = platform_driver_register(&vrc4171_card_driver);
+	if (retval < 0)
+		return retval;
+
+	retval = platform_device_register(&vrc4171_card_device);
+	if (retval < 0) {
+		platform_driver_unregister(&vrc4171_card_driver);
+		return retval;
+	}
+
+	vrc4171_set_multifunction_pin(vrc4171_slotb);
+
+	retval = vrc4171_add_sockets();
+	if (retval == 0)
+		retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
+		                     vrc4171_card_name, vrc4171_sockets);
+
+	if (retval < 0) {
+		vrc4171_remove_sockets();
+		platform_device_unregister(&vrc4171_card_device);
+		platform_driver_unregister(&vrc4171_card_driver);
+		return retval;
+	}
+
+	printk(KERN_INFO "%s, connected to IRQ %d\n",
+		vrc4171_card_driver.driver.name, vrc4171_irq);
+
+	return 0;
+}
+
+static void vrc4171_card_exit(void)
+{
+	free_irq(vrc4171_irq, vrc4171_sockets);
+	vrc4171_remove_sockets();
+	platform_device_unregister(&vrc4171_card_device);
+	platform_driver_unregister(&vrc4171_card_driver);
+}
+
+module_init(vrc4171_card_init);
+module_exit(vrc4171_card_exit);