759 lines
18 KiB
C
759 lines
18 KiB
C
/*
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* vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
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*
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* Copyright (C) 2003-2005 Yoichi Yuasa <yuasa@linux-mips.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/platform_device.h>
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#include <asm/io.h>
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#include <pcmcia/ss.h>
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#include "i82365.h"
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MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
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MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
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MODULE_LICENSE("GPL");
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#define CARD_MAX_SLOTS 2
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#define CARD_SLOTA 0
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#define CARD_SLOTB 1
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#define CARD_SLOTB_OFFSET 0x40
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#define CARD_MEM_START 0x10000000
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#define CARD_MEM_END 0x13ffffff
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#define CARD_MAX_MEM_OFFSET 0x3ffffff
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#define CARD_MAX_MEM_SPEED 1000
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#define CARD_CONTROLLER_INDEX 0x03e0
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#define CARD_CONTROLLER_DATA 0x03e1
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/* Power register */
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#define VPP_GET_VCC 0x01
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#define POWER_ENABLE 0x10
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#define CARD_VOLTAGE_SENSE 0x1f
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#define VCC_3VORXV_CAPABLE 0x00
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#define VCC_XV_ONLY 0x01
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#define VCC_3V_CAPABLE 0x02
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#define VCC_5V_ONLY 0x03
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#define CARD_VOLTAGE_SELECT 0x2f
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#define VCC_3V 0x01
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#define VCC_5V 0x00
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#define VCC_XV 0x02
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#define VCC_STATUS_3V 0x02
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#define VCC_STATUS_5V 0x01
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#define VCC_STATUS_XV 0x03
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#define GLOBAL_CONTROL 0x1e
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#define EXWRBK 0x04
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#define IRQPM_EN 0x08
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#define CLRPMIRQ 0x10
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#define INTERRUPT_STATUS 0x05fa
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#define IRQ_A 0x02
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#define IRQ_B 0x04
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#define CONFIGURATION1 0x05fe
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#define SLOTB_CONFIG 0xc000
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#define SLOTB_NONE 0x0000
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#define SLOTB_PCCARD 0x4000
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#define SLOTB_CF 0x8000
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#define SLOTB_FLASHROM 0xc000
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#define CARD_CONTROLLER_START CARD_CONTROLLER_INDEX
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#define CARD_CONTROLLER_END CARD_CONTROLLER_DATA
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#define IO_MAX_MAPS 2
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#define MEM_MAX_MAPS 5
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enum vrc4171_slot {
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SLOT_PROBE = 0,
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SLOT_NOPROBE_IO,
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SLOT_NOPROBE_MEM,
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SLOT_NOPROBE_ALL,
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SLOT_INITIALIZED,
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};
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enum vrc4171_slotb {
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SLOTB_IS_NONE,
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SLOTB_IS_PCCARD,
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SLOTB_IS_CF,
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SLOTB_IS_FLASHROM,
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};
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struct vrc4171_socket {
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enum vrc4171_slot slot;
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struct pcmcia_socket pcmcia_socket;
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char name[24];
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int csc_irq;
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int io_irq;
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spinlock_t lock;
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};
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static struct vrc4171_socket vrc4171_sockets[CARD_MAX_SLOTS];
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static enum vrc4171_slotb vrc4171_slotb = SLOTB_IS_NONE;
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static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
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static unsigned int vrc4171_irq;
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static uint16_t vrc4171_irq_mask = 0xdeb8;
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static struct resource vrc4171_card_resource[3] = {
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{ .name = vrc4171_card_name,
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.start = CARD_CONTROLLER_START,
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.end = CARD_CONTROLLER_END,
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.flags = IORESOURCE_IO, },
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{ .name = vrc4171_card_name,
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.start = INTERRUPT_STATUS,
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.end = INTERRUPT_STATUS,
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.flags = IORESOURCE_IO, },
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{ .name = vrc4171_card_name,
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.start = CONFIGURATION1,
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.end = CONFIGURATION1,
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.flags = IORESOURCE_IO, },
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};
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static struct platform_device vrc4171_card_device = {
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.name = vrc4171_card_name,
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.id = 0,
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.num_resources = 3,
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.resource = vrc4171_card_resource,
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};
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static inline uint16_t vrc4171_get_irq_status(void)
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{
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return inw(INTERRUPT_STATUS);
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}
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static inline void vrc4171_set_multifunction_pin(enum vrc4171_slotb config)
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{
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uint16_t config1;
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config1 = inw(CONFIGURATION1);
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config1 &= ~SLOTB_CONFIG;
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switch (config) {
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case SLOTB_IS_NONE:
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config1 |= SLOTB_NONE;
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break;
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case SLOTB_IS_PCCARD:
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config1 |= SLOTB_PCCARD;
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break;
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case SLOTB_IS_CF:
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config1 |= SLOTB_CF;
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break;
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case SLOTB_IS_FLASHROM:
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config1 |= SLOTB_FLASHROM;
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break;
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default:
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break;
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}
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outw(config1, CONFIGURATION1);
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}
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static inline uint8_t exca_read_byte(int slot, uint8_t index)
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{
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if (slot == CARD_SLOTB)
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index += CARD_SLOTB_OFFSET;
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outb(index, CARD_CONTROLLER_INDEX);
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return inb(CARD_CONTROLLER_DATA);
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}
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static inline uint16_t exca_read_word(int slot, uint8_t index)
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{
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uint16_t data;
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if (slot == CARD_SLOTB)
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index += CARD_SLOTB_OFFSET;
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outb(index++, CARD_CONTROLLER_INDEX);
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data = inb(CARD_CONTROLLER_DATA);
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outb(index, CARD_CONTROLLER_INDEX);
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data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
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return data;
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}
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static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
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{
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if (slot == CARD_SLOTB)
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index += CARD_SLOTB_OFFSET;
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outb(index, CARD_CONTROLLER_INDEX);
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outb(data, CARD_CONTROLLER_DATA);
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return data;
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}
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static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
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{
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if (slot == CARD_SLOTB)
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index += CARD_SLOTB_OFFSET;
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outb(index++, CARD_CONTROLLER_INDEX);
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outb(data, CARD_CONTROLLER_DATA);
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outb(index, CARD_CONTROLLER_INDEX);
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outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
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return data;
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}
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static inline int search_nonuse_irq(void)
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{
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int i;
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for (i = 0; i < 16; i++) {
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if (vrc4171_irq_mask & (1 << i)) {
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vrc4171_irq_mask &= ~(1 << i);
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return i;
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}
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}
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return -1;
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}
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static int pccard_init(struct pcmcia_socket *sock)
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{
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struct vrc4171_socket *socket;
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unsigned int slot;
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sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
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sock->irq_mask = 0;
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sock->map_size = 0x1000;
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sock->pci_irq = vrc4171_irq;
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slot = sock->sock;
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socket = &vrc4171_sockets[slot];
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socket->csc_irq = search_nonuse_irq();
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socket->io_irq = search_nonuse_irq();
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spin_lock_init(&socket->lock);
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return 0;
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}
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static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
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{
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unsigned int slot;
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uint8_t status, sense;
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u_int val = 0;
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if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
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return -EINVAL;
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slot = sock->sock;
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status = exca_read_byte(slot, I365_STATUS);
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if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
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if (status & I365_CS_STSCHG)
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val |= SS_STSCHG;
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} else {
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if (!(status & I365_CS_BVD1))
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val |= SS_BATDEAD;
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else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
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val |= SS_BATWARN;
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}
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if ((status & I365_CS_DETECT) == I365_CS_DETECT)
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val |= SS_DETECT;
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if (status & I365_CS_WRPROT)
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val |= SS_WRPROT;
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if (status & I365_CS_READY)
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val |= SS_READY;
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if (status & I365_CS_POWERON)
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val |= SS_POWERON;
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sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
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switch (sense) {
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case VCC_3VORXV_CAPABLE:
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val |= SS_3VCARD | SS_XVCARD;
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break;
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case VCC_XV_ONLY:
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val |= SS_XVCARD;
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break;
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case VCC_3V_CAPABLE:
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val |= SS_3VCARD;
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break;
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default:
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/* 5V only */
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break;
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}
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*value = val;
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return 0;
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}
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static inline uint8_t set_Vcc_value(u_char Vcc)
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{
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switch (Vcc) {
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case 33:
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return VCC_3V;
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case 50:
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return VCC_5V;
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}
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/* Small voltage is chosen for safety. */
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return VCC_3V;
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}
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static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
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{
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struct vrc4171_socket *socket;
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unsigned int slot;
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uint8_t voltage, power, control, cscint;
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if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
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(state->Vpp != state->Vcc && state->Vpp != 0) ||
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(state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
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return -EINVAL;
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slot = sock->sock;
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socket = &vrc4171_sockets[slot];
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spin_lock_irq(&socket->lock);
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voltage = set_Vcc_value(state->Vcc);
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exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
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power = POWER_ENABLE;
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if (state->Vpp == state->Vcc)
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power |= VPP_GET_VCC;
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if (state->flags & SS_OUTPUT_ENA)
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power |= I365_PWR_OUT;
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exca_write_byte(slot, I365_POWER, power);
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control = 0;
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if (state->io_irq != 0)
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control |= socket->io_irq;
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if (state->flags & SS_IOCARD)
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control |= I365_PC_IOCARD;
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if (state->flags & SS_RESET)
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control &= ~I365_PC_RESET;
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else
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control |= I365_PC_RESET;
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exca_write_byte(slot, I365_INTCTL, control);
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cscint = 0;
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exca_write_byte(slot, I365_CSCINT, cscint);
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exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
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if (state->csc_mask != 0)
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cscint |= socket->csc_irq << 8;
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if (state->flags & SS_IOCARD) {
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if (state->csc_mask & SS_STSCHG)
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cscint |= I365_CSC_STSCHG;
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} else {
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if (state->csc_mask & SS_BATDEAD)
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cscint |= I365_CSC_BVD1;
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if (state->csc_mask & SS_BATWARN)
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cscint |= I365_CSC_BVD2;
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}
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if (state->csc_mask & SS_READY)
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cscint |= I365_CSC_READY;
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if (state->csc_mask & SS_DETECT)
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cscint |= I365_CSC_DETECT;
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exca_write_byte(slot, I365_CSCINT, cscint);
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spin_unlock_irq(&socket->lock);
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return 0;
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}
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static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
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{
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unsigned int slot;
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uint8_t ioctl, addrwin;
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u_char map;
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if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
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io == NULL || io->map >= IO_MAX_MAPS ||
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io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
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return -EINVAL;
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slot = sock->sock;
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map = io->map;
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addrwin = exca_read_byte(slot, I365_ADDRWIN);
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if (addrwin & I365_ENA_IO(map)) {
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addrwin &= ~I365_ENA_IO(map);
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exca_write_byte(slot, I365_ADDRWIN, addrwin);
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}
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exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
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exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
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ioctl = 0;
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if (io->speed > 0)
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ioctl |= I365_IOCTL_WAIT(map);
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if (io->flags & MAP_16BIT)
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ioctl |= I365_IOCTL_16BIT(map);
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if (io->flags & MAP_AUTOSZ)
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ioctl |= I365_IOCTL_IOCS16(map);
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if (io->flags & MAP_0WS)
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ioctl |= I365_IOCTL_0WS(map);
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exca_write_byte(slot, I365_IOCTL, ioctl);
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if (io->flags & MAP_ACTIVE) {
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addrwin |= I365_ENA_IO(map);
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exca_write_byte(slot, I365_ADDRWIN, addrwin);
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}
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return 0;
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}
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static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
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{
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unsigned int slot;
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uint16_t start, stop, offset;
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uint8_t addrwin;
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u_char map;
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if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
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mem == NULL || mem->map >= MEM_MAX_MAPS ||
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mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
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mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
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mem->res->start > mem->res->end ||
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mem->card_start > CARD_MAX_MEM_OFFSET ||
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mem->speed > CARD_MAX_MEM_SPEED)
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return -EINVAL;
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slot = sock->sock;
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map = mem->map;
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addrwin = exca_read_byte(slot, I365_ADDRWIN);
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if (addrwin & I365_ENA_MEM(map)) {
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addrwin &= ~I365_ENA_MEM(map);
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exca_write_byte(slot, I365_ADDRWIN, addrwin);
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}
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start = (mem->res->start >> 12) & 0x3fff;
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if (mem->flags & MAP_16BIT)
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start |= I365_MEM_16BIT;
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exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
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stop = (mem->res->end >> 12) & 0x3fff;
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switch (mem->speed) {
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case 0:
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break;
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case 1:
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stop |= I365_MEM_WS0;
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break;
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case 2:
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stop |= I365_MEM_WS1;
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break;
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default:
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stop |= I365_MEM_WS0 | I365_MEM_WS1;
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break;
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}
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exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
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offset = (mem->card_start >> 12) & 0x3fff;
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if (mem->flags & MAP_ATTRIB)
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offset |= I365_MEM_REG;
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if (mem->flags & MAP_WRPROT)
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offset |= I365_MEM_WRPROT;
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exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
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if (mem->flags & MAP_ACTIVE) {
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addrwin |= I365_ENA_MEM(map);
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exca_write_byte(slot, I365_ADDRWIN, addrwin);
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}
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return 0;
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}
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static struct pccard_operations vrc4171_pccard_operations = {
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.init = pccard_init,
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.get_status = pccard_get_status,
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.set_socket = pccard_set_socket,
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.set_io_map = pccard_set_io_map,
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.set_mem_map = pccard_set_mem_map,
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};
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static inline unsigned int get_events(int slot)
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{
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unsigned int events = 0;
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uint8_t status, csc;
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status = exca_read_byte(slot, I365_STATUS);
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csc = exca_read_byte(slot, I365_CSC);
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if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
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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 vrc4171_socket *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)
|
|
{
|
|
struct vrc4171_socket *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)
|
|
{
|
|
struct vrc4171_socket *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);
|