Hello Ralf,
I made the patch for VRC4171 PCMCIA driver.
The VRC4171 is companion chip for NEC VR4111 and VR4121.
The VRC4171 includes in the PCMCIA controller.
This patch exists for linux_2_4 tag of linux-mips.org CVS.
Please apply this patch.
Yoichi
diff -urN -X dontdiff linux-orig/drivers/pcmcia/Config.in linux/drivers/pcmcia/Config.in
--- linux-orig/drivers/pcmcia/Config.in Sun Dec 21 10:27:50 2003
+++ linux/drivers/pcmcia/Config.in Tue Dec 23 18:44:20 2003
@@ -40,6 +40,9 @@
if [ "$CONFIG_SIBYTE_SB1xxx_SOC" = "y" ]; then
dep_bool ' SiByte PCMCIA support' CONFIG_PCMCIA_SIBYTE $CONFIG_PCMCIA $CONFIG_BLK_DEV_IDE_SIBYTE
fi
+ if [ "$CONFIG_VRC4171" = "y" -o "$CONFIG_VRC4171" = "m" ]; then
+ dep_tristate ' NEC VRC4171 Card Controllers support' CONFIG_PCMCIA_VRC4171 $CONFIG_PCMCIA
+ fi
if [ "$CONFIG_VRC4173" = "y" -o "$CONFIG_VRC4173" = "m" ]; then
dep_tristate ' NEC VRC4173 CARDU support' CONFIG_PCMCIA_VRC4173 $CONFIG_PCMCIA
fi
diff -urN -X dontdiff linux-orig/drivers/pcmcia/Makefile linux/drivers/pcmcia/Makefile
--- linux-orig/drivers/pcmcia/Makefile Tue Jul 15 01:14:06 2003
+++ linux/drivers/pcmcia/Makefile Tue Dec 23 18:44:42 2003
@@ -89,6 +89,7 @@
sa1100_cs-objs-$(CONFIG_SA1100_XP860) += sa1100_xp860.o sa1111_generic.o
sa1100_cs-objs-$(CONFIG_SA1100_YOPY) += sa1100_yopy.o
+obj-$(CONFIG_PCMCIA_VRC4171) += vrc4171_card.o
obj-$(CONFIG_PCMCIA_VRC4173) += vrc4173_cardu.o
include $(TOPDIR)/Rules.make
diff -urN -X dontdiff linux-orig/drivers/pcmcia/vrc4171_card.c linux/drivers/pcmcia/vrc4171_card.c
--- linux-orig/drivers/pcmcia/vrc4171_card.c Thu Jan 1 09:00:00 1970
+++ linux/drivers/pcmcia/vrc4171_card.c Tue Dec 23 18:44:20 2003
@@ -0,0 +1,886 @@
+/*
+ * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
+ *
+ * Copyright (C) 2003 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/irq.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+
+#include <asm/io.h>
+#include <asm/vr41xx/vrc4171.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
+#define CARD_CONTROLLER_SIZE 2
+ /* 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 IO_MAX_MAPS 2
+#define MEM_MAX_MAPS 5
+
+enum {
+ SLOTB_PROBE = 0,
+ SLOTB_NOPROBE_IO,
+ SLOTB_NOPROBE_MEM,
+ SLOTB_NOPROBE_ALL
+};
+
+typedef struct vrc4171_socket {
+ int noprobe;
+ void (*handler)(void *, unsigned int);
+ void *info;
+ socket_cap_t cap;
+ spinlock_t event_lock;
+ uint16_t events;
+ struct socket_info_t *pcmcia_socket;
+ struct tq_struct tq_task;
+ char name[24];
+ int csc_irq;
+ int io_irq;
+} vrc4171_socket_t;
+
+static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
+static int vrc4171_slotb = SLOTB_IS_NONE;
+static unsigned int vrc4171_irq;
+static uint16_t vrc4171_irq_mask = 0xdeb8;
+
+extern struct socket_info_t *pcmcia_register_socket(int slot,
+ struct pccard_operations *vtable,
+ int use_bus_pm);
+extern void pcmcia_unregister_socket(struct socket_info_t *s);
+
+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(unsigned int slot)
+{
+ vrc4171_socket_t *socket = &vrc4171_sockets[slot];
+
+ socket->cap.features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
+ socket->cap.irq_mask = 0;
+ socket->cap.pci_irq = vrc4171_irq;
+ socket->cap.map_size = 0x1000;
+ socket->events = 0;
+ spin_lock_init(socket->event_lock);
+ socket->csc_irq = search_nonuse_irq();
+ socket->io_irq = search_nonuse_irq();
+
+ return 0;
+}
+
+static int pccard_suspend(unsigned int slot)
+{
+ return -EINVAL;
+}
+
+static int pccard_register_callback(unsigned int slot,
+ void (*handler)(void *, unsigned int),
+ void *info)
+{
+ vrc4171_socket_t *socket;
+
+ if (slot >= CARD_MAX_SLOTS)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+
+ socket->handler = handler;
+ socket->info = info;
+
+ if (handler)
+ MOD_INC_USE_COUNT;
+ else
+ MOD_DEC_USE_COUNT;
+
+ return 0;
+}
+
+static int pccard_inquire_socket(unsigned int slot, socket_cap_t *cap)
+{
+ vrc4171_socket_t *socket;
+
+ if (slot >= CARD_MAX_SLOTS || cap == NULL)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+
+ *cap = socket->cap;
+
+ return 0;
+}
+
+static int pccard_get_status(unsigned int slot, u_int *value)
+{
+ uint8_t status, sense;
+ u_int val = 0;
+
+ if (slot >= CARD_MAX_SLOTS || value == NULL)
+ return -EINVAL;
+
+ 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(unsigned int slot, socket_state_t *state)
+{
+ vrc4171_socket_t *socket;
+ uint8_t power, voltage, control, cscint;
+
+ if (slot >= CARD_MAX_SLOTS || state == NULL)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+
+ 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(unsigned int slot, socket_state_t *state)
+{
+ vrc4171_socket_t *socket;
+ uint8_t voltage, power, control, cscint;
+
+ if (slot >= CARD_MAX_SLOTS ||
+ (state->Vpp != state->Vcc && state->Vpp != 0) ||
+ (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+
+ spin_lock_irq(&socket->event_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->event_lock);
+
+ return 0;
+}
+
+static int pccard_get_io_map(unsigned int slot, struct pccard_io_map *io)
+{
+ vrc4171_socket_t *socket;
+ uint8_t ioctl, addrwin;
+ u_char map;
+
+ if (slot >= CARD_MAX_SLOTS || io == NULL ||
+ io->map >= IO_MAX_MAPS)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+ map = io->map;
+
+ io->start = exca_read_word(slot, I365_IO(map)+I365_W_START);
+ io->stop = exca_read_word(slot, I365_IO(map)+I365_W_STOP);
+
+ ioctl = exca_read_byte(slot, I365_IOCTL);
+ if (io->flags & I365_IOCTL_WAIT(map))
+ io->speed = 1;
+ else
+ io->speed = 0;
+
+ io->flags = 0;
+ if (ioctl & I365_IOCTL_16BIT(map))
+ io->flags |= MAP_16BIT;
+ if (ioctl & I365_IOCTL_IOCS16(map))
+ io->flags |= MAP_AUTOSZ;
+ if (ioctl & I365_IOCTL_0WS(map))
+ io->flags |= MAP_0WS;
+
+ addrwin = exca_read_byte(slot, I365_ADDRWIN);
+ if (addrwin & I365_ENA_IO(map))
+ io->flags |= MAP_ACTIVE;
+
+ return 0;
+}
+
+static int pccard_set_io_map(unsigned int slot, struct pccard_io_map *io)
+{
+ vrc4171_socket_t *socket;
+ uint8_t ioctl, addrwin;
+ u_char map;
+
+ if (slot >= CARD_MAX_SLOTS ||
+ io == NULL || io->map >= IO_MAX_MAPS ||
+ io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+ 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_get_mem_map(unsigned int slot, struct pccard_mem_map *mem)
+{
+ vrc4171_socket_t *socket;
+ uint8_t addrwin;
+ u_long start, stop;
+ u_int offset;
+ u_char map;
+
+ if (slot >= CARD_MAX_SLOTS || mem == NULL || mem->map >= MEM_MAX_MAPS)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+ map = mem->map;
+
+ mem->flags = 0;
+ mem->speed = 0;
+
+ addrwin = exca_read_byte(slot, I365_ADDRWIN);
+ if (addrwin & I365_ENA_MEM(map))
+ mem->flags |= MAP_ACTIVE;
+
+ start = exca_read_word(slot, I365_MEM(map)+I365_W_START);
+ if (start & I365_MEM_16BIT)
+ mem->flags |= MAP_16BIT;
+ mem->sys_start = (start & 0x3fffUL) << 12;
+
+ stop = exca_read_word(slot, I365_MEM(map)+I365_W_STOP);
+ if (start & I365_MEM_WS0)
+ mem->speed += 1;
+ if (start & I365_MEM_WS1)
+ mem->speed += 2;
+ mem->sys_stop = ((stop & 0x3fffUL) << 12) + 0xfffUL;
+
+ offset = exca_read_word(slot, I365_MEM(map)+I365_W_OFF);
+ if (offset & I365_MEM_REG)
+ mem->flags |= MAP_ATTRIB;
+ if (offset & I365_MEM_WRPROT)
+ mem->flags |= MAP_WRPROT;
+ mem->card_start = (offset & 0x3fffUL) << 12;
+
+ mem->sys_start += CARD_MEM_START;
+ mem->sys_stop += CARD_MEM_START;
+
+ return 0;
+}
+
+static int pccard_set_mem_map(unsigned int slot, struct pccard_mem_map *mem)
+{
+ vrc4171_socket_t *socket;
+ uint16_t start, stop, offset;
+ uint8_t addrwin;
+ u_char map;
+
+ if (slot >= CARD_MAX_SLOTS ||
+ mem == NULL || mem->map >= MEM_MAX_MAPS ||
+ mem->sys_start < CARD_MEM_START || mem->sys_start > CARD_MEM_END ||
+ mem->sys_stop < CARD_MEM_START || mem->sys_stop > CARD_MEM_END ||
+ mem->sys_start > mem->sys_stop ||
+ mem->card_start > CARD_MAX_MEM_OFFSET ||
+ mem->speed > CARD_MAX_MEM_SPEED)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+ 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->sys_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->sys_stop >> 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 void pccard_proc_setup(unsigned int slot, struct proc_dir_entry *base)
+{
+}
+
+static struct pccard_operations vrc4171_pccard_operations = {
+ .init = pccard_init,
+ .suspend = pccard_suspend,
+ .register_callback = pccard_register_callback,
+ .inquire_socket = pccard_inquire_socket,
+ .get_status = pccard_get_status,
+ .get_socket = pccard_get_socket,
+ .set_socket = pccard_set_socket,
+ .get_io_map = pccard_get_io_map,
+ .set_io_map = pccard_set_io_map,
+ .get_mem_map = pccard_get_mem_map,
+ .set_mem_map = pccard_set_mem_map,
+ .proc_setup = pccard_proc_setup,
+};
+
+static void pccard_bh(void *data)
+{
+ vrc4171_socket_t *socket = (vrc4171_socket_t *)data;
+ uint16_t events;
+
+ spin_lock_irq(&socket->event_lock);
+ events = socket->events;
+ socket->events = 0;
+ spin_unlock_irq(&socket->event_lock);
+
+ if (socket->handler)
+ socket->handler(socket->info, events);
+}
+
+static inline uint16_t get_events(int slot)
+{
+ uint16_t 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 void pccard_status_change(int slot, vrc4171_socket_t *socket)
+{
+ uint16_t events;
+
+ socket->tq_task.routine = pccard_bh;
+ socket->tq_task.data = socket;
+
+ events = get_events(slot);
+ if (events) {
+ spin_lock(&socket->event_lock);
+ socket->events |= events;
+ spin_unlock(&socket->event_lock);
+ schedule_task(&socket->tq_task);
+ }
+}
+
+static void pccard_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ vrc4171_socket_t *socket;
+ uint16_t status;
+
+ status = vrc4171_get_irq_status();
+ if (status & IRQ_A) {
+ socket = &vrc4171_sockets[CARD_SLOTA];
+ if (socket->noprobe == SLOTB_PROBE) {
+ if (status & (1 << socket->csc_irq))
+ pccard_status_change(CARD_SLOTA, socket);
+ }
+ }
+
+ if (status & IRQ_B) {
+ socket = &vrc4171_sockets[CARD_SLOTB];
+ if (socket->noprobe == SLOTB_PROBE) {
+ if (status & (1 << socket->csc_irq))
+ pccard_status_change(CARD_SLOTB, socket);
+ }
+ }
+}
+
+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_socket(int slot)
+{
+ vrc4171_socket_t *socket;
+
+ if (slot >= CARD_MAX_SLOTS)
+ return -EINVAL;
+
+ socket = &vrc4171_sockets[slot];
+ if (socket->noprobe != SLOTB_PROBE) {
+ uint8_t addrwin;
+
+ switch (socket->noprobe) {
+ case SLOTB_NOPROBE_MEM:
+ addrwin = exca_read_byte(slot, I365_ADDRWIN);
+ addrwin &= 0x1f;
+ exca_write_byte(slot, I365_ADDRWIN, addrwin);
+ break;
+ case SLOTB_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);
+
+ return 0;
+ }
+
+ sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
+
+ socket->pcmcia_socket = pcmcia_register_socket(slot, &vrc4171_pccard_operations, 1);
+ if (socket->pcmcia_socket == NULL)
+ return -ENOMEM;
+
+ exca_write_byte(slot, I365_ADDRWIN, 0);
+
+ exca_write_byte(slot, GLOBAL_CONTROL, 0);
+
+ return 0;
+}
+
+static void vrc4171_remove_socket(int slot)
+{
+ vrc4171_socket_t *socket;
+
+ if (slot >= CARD_MAX_SLOTS)
+ return;
+
+ socket = &vrc4171_sockets[slot];
+
+ if (socket->pcmcia_socket != NULL) {
+ pcmcia_unregister_socket(socket->pcmcia_socket);
+ socket->pcmcia_socket = NULL;
+ }
+}
+
+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, "noprobe", 7) == 0) {
+ vrc4171_sockets[CARD_SLOTA].noprobe = 1;
+ 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].noprobe = SLOTB_NOPROBE_MEM;
+ if ( strncmp(options, "ionoprobe", 9) == 0)
+ vrc4171_sockets[CARD_SLOTB].noprobe = SLOTB_NOPROBE_IO;
+ if ( strncmp(options, "noprobe", 7) == 0)
+ vrc4171_sockets[CARD_SLOTB].noprobe = SLOTB_NOPROBE_ALL;
+ }
+ }
+
+ return 0;
+}
+
+__setup("vrc4171_card=", vrc4171_card_setup);
+
+static int __devinit vrc4171_card_init(void)
+{
+ int retval, slot;
+
+ vrc4171_set_multifunction_pin(vrc4171_slotb);
+
+ if (request_region(CARD_CONTROLLER_INDEX, CARD_CONTROLLER_SIZE,
+ "NEC VRC4171 Card Controller") == NULL)
+ return -EBUSY;
+
+ for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
+ if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
+ break;
+
+ retval = vrc4171_add_socket(slot);
+ if (retval != 0)
+ return retval;
+ }
+
+ retval = request_irq(vrc4171_irq, pccard_interrupt, SA_SHIRQ,
+ "NEC VRC4171 Card Controller", vrc4171_sockets);
+ if (retval < 0) {
+ for (slot = 0; slot < CARD_MAX_SLOTS; slot++)
+ vrc4171_remove_socket(slot);
+
+ return retval;
+ }
+
+ printk(KERN_INFO "NEC VRC4171 Card Controller, connected to IRQ %d\n", vrc4171_irq);
+
+ return 0;
+}
+
+static void __devexit vrc4171_card_exit(void)
+{
+ int slot;
+
+ for (slot = 0; slot < CARD_MAX_SLOTS; slot++)
+ vrc4171_remove_socket(slot);
+
+ release_region(CARD_CONTROLLER_INDEX, CARD_CONTROLLER_SIZE);
+}
+
+module_init(vrc4171_card_init);
+module_exit(vrc4171_card_exit);
