Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 846 insertions, 0 deletions

diff --git a/drivers/pcmcia/vrc4171_card.c b/drivers/pcmcia/vrc4171_card.c
new file mode 100644
index 000000000000..987bc21ced42
--- /dev/null
+++ b/drivers/pcmcia/vrc4171_card.c
@@ -0,0 +1,846 @@
+/*
+ * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
+ *
+ * Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
+ *
+ *  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/sched.h>
+#include <linux/types.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@hh.iij4u.or.jp>");
+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;
+} 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();
+
+        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 u_char get_Vcc_value(uint8_t voltage)
+{
+        switch (voltage) {
+        case VCC_STATUS_3V:
+                return 33;
+        case VCC_STATUS_5V:
+                return 50;
+        default:
+                break;
+        }
+
+        return 0;
+}
+
+static inline u_char get_Vpp_value(uint8_t power, u_char Vcc)
+{
+        if ((power & 0x03) == 0x01 || (power & 0x03) == 0x02)
+                return Vcc;
+
+        return 0;
+}
+
+static int pccard_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+        unsigned int slot;
+        uint8_t power, voltage, control, cscint;
+
+        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || state == NULL)
+                return -EINVAL;
+
+        slot = sock->sock;
+
+        power = exca_read_byte(slot, I365_POWER);
+        voltage = exca_read_byte(slot, CARD_VOLTAGE_SELECT);
+
+        state->Vcc = get_Vcc_value(voltage);
+        state->Vpp = get_Vpp_value(power, state->Vcc);
+
+        state->flags = 0;
+        if (power & POWER_ENABLE)
+                state->flags |= SS_PWR_AUTO;
+        if (power & I365_PWR_OUT)
+                state->flags |= SS_OUTPUT_ENA;
+
+        control = exca_read_byte(slot, I365_INTCTL);
+        if (control & I365_PC_IOCARD)
+                state->flags |= SS_IOCARD;
+        if (!(control & I365_PC_RESET))
+                state->flags |= SS_RESET;
+
+        cscint = exca_read_byte(slot, I365_CSCINT);
+        state->csc_mask = 0;
+        if (state->flags & SS_IOCARD) {
+                if (cscint & I365_CSC_STSCHG)
+                        state->flags |= SS_STSCHG;
+        } else {
+                if (cscint & I365_CSC_BVD1)
+                        state->csc_mask |= SS_BATDEAD;
+                if (cscint & I365_CSC_BVD2)
+                        state->csc_mask |= SS_BATWARN;
+        }
+        if (cscint & I365_CSC_READY)
+                state->csc_mask |= SS_READY;
+        if (cscint & I365_CSC_DETECT)
+                state->csc_mask |= SS_DETECT;
+
+        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(&sock->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(&sock->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,
+        .get_socket             = pccard_get_socket,
+        .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, struct pt_regs *regs)
+{
+        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 __devinit 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.dev = &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 __devinit vrc4171_card_setup(char *options)
+{
+        if (options == NULL || *options == '\0')
+                return 0;
+
+        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 0;
+                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 0;
+                        options++;
+                } else
+                        return 0;
+
+        }
+
+        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 0;
+                        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 0;
+}
+
+__setup("vrc4171_card=", vrc4171_card_setup);
+
+static int vrc4171_card_suspend(struct device *dev, u32 state, u32 level)
+{
+        int retval = 0;
+
+        if (level == SUSPEND_SAVE_STATE)
+                retval = pcmcia_socket_dev_suspend(dev, state);
+
+        return retval;
+}
+
+static int vrc4171_card_resume(struct device *dev, u32 level)
+{
+        int retval = 0;
+
+        if (level == RESUME_RESTORE_STATE)
+                retval = pcmcia_socket_dev_resume(dev);
+
+        return retval;
+}
+
+static struct device_driver vrc4171_card_driver = {
+        .name           = vrc4171_card_name,
+        .bus            = &platform_bus_type,
+        .suspend        = vrc4171_card_suspend,
+        .resume         = vrc4171_card_resume,
+};
+
+static int __devinit vrc4171_card_init(void)
+{
+        int retval;
+
+        retval = driver_register(&vrc4171_card_driver);
+        if (retval < 0)
+                return retval;
+
+        retval = platform_device_register(&vrc4171_card_device);
+        if (retval < 0) {
+                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, SA_SHIRQ,
+                                     vrc4171_card_name, vrc4171_sockets);
+
+        if (retval < 0) {
+                vrc4171_remove_sockets();
+                platform_device_unregister(&vrc4171_card_device);
+                driver_unregister(&vrc4171_card_driver);
+                return retval;
+        }
+
+        printk(KERN_INFO "%s, connected to IRQ %d\n", vrc4171_card_driver.name, vrc4171_irq);
+
+        return 0;
+}
+
+static void __devexit vrc4171_card_exit(void)
+{
+        free_irq(vrc4171_irq, vrc4171_sockets);
+        vrc4171_remove_sockets();
+        platform_device_unregister(&vrc4171_card_device);
+        driver_unregister(&vrc4171_card_driver);
+}
+
+module_init(vrc4171_card_init);
+module_exit(vrc4171_card_exit);