+++ /dev/null
-/*
- * linux/arch/arm26/kernel/ecard.c
- *
- * Copyright 1995-2001 Russell King
- * Copyright 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Find all installed expansion cards, and handle interrupts from them.
- *
- * Created from information from Acorns RiscOS3 PRMs
- * 15-Jun-2003 IM Modified from ARM32 (RiscPC capable) version
- * 10-Jan-1999 RMK Run loaders in a simulated RISC OS environment.
- * 06-May-1997 RMK Added blacklist for cards whose loader doesn't work.
- * 12-Sep-1997 RMK Created new handling of interrupt enables/disables
- * - cards can now register their own routine to control
- * interrupts (recommended).
- * 29-Sep-1997 RMK Expansion card interrupt hardware not being re-enabled
- * on reset from Linux. (Caused cards not to respond
- * under RiscOS without hard reset).
- *
- */
-#define ECARD_C
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/device.h>
-#include <linux/init.h>
-
-#include <asm/dma.h>
-#include <asm/ecard.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mmu_context.h>
-#include <asm/irqchip.h>
-#include <asm/tlbflush.h>
-
-enum req {
- req_readbytes,
- req_reset
-};
-
-struct ecard_request {
- enum req req;
- ecard_t *ec;
- unsigned int address;
- unsigned int length;
- unsigned int use_loader;
- void *buffer;
-};
-
-struct expcard_blacklist {
- unsigned short manufacturer;
- unsigned short product;
- const char *type;
-};
-
-static ecard_t *cards;
-static ecard_t *slot_to_expcard[MAX_ECARDS];
-static unsigned int ectcr;
-
-/* List of descriptions of cards which don't have an extended
- * identification, or chunk directories containing a description.
- */
-static struct expcard_blacklist __initdata blacklist[] = {
- { MANU_ACORN, PROD_ACORN_ETHER1, "Acorn Ether1" }
-};
-
-asmlinkage extern int
-ecard_loader_reset(volatile unsigned char *pa, loader_t loader);
-asmlinkage extern int
-ecard_loader_read(int off, volatile unsigned char *pa, loader_t loader);
-
-static const struct ecard_id *
-ecard_match_device(const struct ecard_id *ids, struct expansion_card *ec);
-
-static inline unsigned short
-ecard_getu16(unsigned char *v)
-{
- return v[0] | v[1] << 8;
-}
-
-static inline signed long
-ecard_gets24(unsigned char *v)
-{
- return v[0] | v[1] << 8 | v[2] << 16 | ((v[2] & 0x80) ? 0xff000000 : 0);
-}
-
-static inline ecard_t *
-slot_to_ecard(unsigned int slot)
-{
- return slot < MAX_ECARDS ? slot_to_expcard[slot] : NULL;
-}
-
-/* ===================== Expansion card daemon ======================== */
-/*
- * Since the loader programs on the expansion cards need to be run
- * in a specific environment, create a separate task with this
- * environment up, and pass requests to this task as and when we
- * need to.
- *
- * This should allow 99% of loaders to be called from Linux.
- *
- * From a security standpoint, we trust the card vendors. This
- * may be a misplaced trust.
- */
-#define BUS_ADDR(x) ((((unsigned long)(x)) << 2) + IO_BASE)
-#define POD_INT_ADDR(x) ((volatile unsigned char *)\
- ((BUS_ADDR((x)) - IO_BASE) + IO_START))
-
-static inline void ecard_task_reset(struct ecard_request *req)
-{
- struct expansion_card *ec = req->ec;
- if (ec->loader)
- ecard_loader_reset(POD_INT_ADDR(ec->podaddr), ec->loader);
-}
-
-static void
-ecard_task_readbytes(struct ecard_request *req)
-{
- unsigned char *buf = (unsigned char *)req->buffer;
- volatile unsigned char *base_addr =
- (volatile unsigned char *)POD_INT_ADDR(req->ec->podaddr);
- unsigned int len = req->length;
- unsigned int off = req->address;
-
- if (!req->use_loader || !req->ec->loader) {
- off *= 4;
- while (len--) {
- *buf++ = base_addr[off];
- off += 4;
- }
- } else {
- while(len--) {
- /*
- * The following is required by some
- * expansion card loader programs.
- */
- *(unsigned long *)0x108 = 0;
- *buf++ = ecard_loader_read(off++, base_addr,
- req->ec->loader);
- }
- }
-}
-
-static void ecard_do_request(struct ecard_request *req)
-{
- switch (req->req) {
- case req_readbytes:
- ecard_task_readbytes(req);
- break;
-
- case req_reset:
- ecard_task_reset(req);
- break;
- }
-}
-
-/*
- * On 26-bit processors, we don't need the kcardd thread to access the
- * expansion card loaders. We do it directly.
- */
-#define ecard_call(req) ecard_do_request(req)
-
-/* ======================= Mid-level card control ===================== */
-
-static void
-ecard_readbytes(void *addr, ecard_t *ec, int off, int len, int useld)
-{
- struct ecard_request req;
-
- req.req = req_readbytes;
- req.ec = ec;
- req.address = off;
- req.length = len;
- req.use_loader = useld;
- req.buffer = addr;
-
- ecard_call(&req);
-}
-
-int ecard_readchunk(struct in_chunk_dir *cd, ecard_t *ec, int id, int num)
-{
- struct ex_chunk_dir excd;
- int index = 16;
- int useld = 0;
-
- if (!ec->cid.cd)
- return 0;
-
- while(1) {
- ecard_readbytes(&excd, ec, index, 8, useld);
- index += 8;
- if (c_id(&excd) == 0) {
- if (!useld && ec->loader) {
- useld = 1;
- index = 0;
- continue;
- }
- return 0;
- }
- if (c_id(&excd) == 0xf0) { /* link */
- index = c_start(&excd);
- continue;
- }
- if (c_id(&excd) == 0x80) { /* loader */
- if (!ec->loader) {
- ec->loader = kmalloc(c_len(&excd),
- GFP_KERNEL);
- if (ec->loader)
- ecard_readbytes(ec->loader, ec,
- (int)c_start(&excd),
- c_len(&excd), useld);
- else
- return 0;
- }
- continue;
- }
- if (c_id(&excd) == id && num-- == 0)
- break;
- }
-
- if (c_id(&excd) & 0x80) {
- switch (c_id(&excd) & 0x70) {
- case 0x70:
- ecard_readbytes((unsigned char *)excd.d.string, ec,
- (int)c_start(&excd), c_len(&excd),
- useld);
- break;
- case 0x00:
- break;
- }
- }
- cd->start_offset = c_start(&excd);
- memcpy(cd->d.string, excd.d.string, 256);
- return 1;
-}
-
-/* ======================= Interrupt control ============================ */
-
-static void ecard_def_irq_enable(ecard_t *ec, int irqnr)
-{
-}
-
-static void ecard_def_irq_disable(ecard_t *ec, int irqnr)
-{
-}
-
-static int ecard_def_irq_pending(ecard_t *ec)
-{
- return !ec->irqmask || ec->irqaddr[0] & ec->irqmask;
-}
-
-static void ecard_def_fiq_enable(ecard_t *ec, int fiqnr)
-{
- panic("ecard_def_fiq_enable called - impossible");
-}
-
-static void ecard_def_fiq_disable(ecard_t *ec, int fiqnr)
-{
- panic("ecard_def_fiq_disable called - impossible");
-}
-
-static int ecard_def_fiq_pending(ecard_t *ec)
-{
- return !ec->fiqmask || ec->fiqaddr[0] & ec->fiqmask;
-}
-
-static expansioncard_ops_t ecard_default_ops = {
- ecard_def_irq_enable,
- ecard_def_irq_disable,
- ecard_def_irq_pending,
- ecard_def_fiq_enable,
- ecard_def_fiq_disable,
- ecard_def_fiq_pending
-};
-
-/*
- * Enable and disable interrupts from expansion cards.
- * (interrupts are disabled for these functions).
- *
- * They are not meant to be called directly, but via enable/disable_irq.
- */
-static void ecard_irq_unmask(unsigned int irqnr)
-{
- ecard_t *ec = slot_to_ecard(irqnr - 32);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->claimed && ec->ops->irqenable)
- ec->ops->irqenable(ec, irqnr);
- else
- printk(KERN_ERR "ecard: rejecting request to "
- "enable IRQs for %d\n", irqnr);
- }
-}
-
-static void ecard_irq_mask(unsigned int irqnr)
-{
- ecard_t *ec = slot_to_ecard(irqnr - 32);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->ops && ec->ops->irqdisable)
- ec->ops->irqdisable(ec, irqnr);
- }
-}
-
-static struct irqchip ecard_chip = {
- .ack = ecard_irq_mask,
- .mask = ecard_irq_mask,
- .unmask = ecard_irq_unmask,
-};
-
-void ecard_enablefiq(unsigned int fiqnr)
-{
- ecard_t *ec = slot_to_ecard(fiqnr);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->claimed && ec->ops->fiqenable)
- ec->ops->fiqenable(ec, fiqnr);
- else
- printk(KERN_ERR "ecard: rejecting request to "
- "enable FIQs for %d\n", fiqnr);
- }
-}
-
-void ecard_disablefiq(unsigned int fiqnr)
-{
- ecard_t *ec = slot_to_ecard(fiqnr);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->ops->fiqdisable)
- ec->ops->fiqdisable(ec, fiqnr);
- }
-}
-
-static void
-ecard_dump_irq_state(ecard_t *ec)
-{
- printk(" %d: %sclaimed, ",
- ec->slot_no,
- ec->claimed ? "" : "not ");
-
- if (ec->ops && ec->ops->irqpending &&
- ec->ops != &ecard_default_ops)
- printk("irq %spending\n",
- ec->ops->irqpending(ec) ? "" : "not ");
- else
- printk("irqaddr %p, mask = %02X, status = %02X\n",
- ec->irqaddr, ec->irqmask, *ec->irqaddr);
-}
-
-static void ecard_check_lockup(struct irqdesc *desc)
-{
- static int last, lockup;
- ecard_t *ec;
-
- /*
- * If the timer interrupt has not run since the last million
- * unrecognised expansion card interrupts, then there is
- * something seriously wrong. Disable the expansion card
- * interrupts so at least we can continue.
- *
- * Maybe we ought to start a timer to re-enable them some time
- * later?
- */
- if (last == jiffies) {
- lockup += 1;
- if (lockup > 1000000) {
- printk(KERN_ERR "\nInterrupt lockup detected - "
- "disabling all expansion card interrupts\n");
-
- desc->chip->mask(IRQ_EXPANSIONCARD);
-
- printk("Expansion card IRQ state:\n");
-
- for (ec = cards; ec; ec = ec->next)
- ecard_dump_irq_state(ec);
- }
- } else
- lockup = 0;
-
- /*
- * If we did not recognise the source of this interrupt,
- * warn the user, but don't flood the user with these messages.
- */
- if (!last || time_after(jiffies, (unsigned long)(last + 5*HZ))) {
- last = jiffies;
- printk(KERN_WARNING "Unrecognised interrupt from backplane\n");
- }
-}
-
-static void
-ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
-{
- ecard_t *ec;
- int called = 0;
-
- desc->chip->mask(irq);
- for (ec = cards; ec; ec = ec->next) {
- int pending;
-
- if (!ec->claimed || ec->irq == NO_IRQ)
- continue;
-
- if (ec->ops && ec->ops->irqpending)
- pending = ec->ops->irqpending(ec);
- else
- pending = ecard_default_ops.irqpending(ec);
-
- if (pending) {
- struct irqdesc *d = irq_desc + ec->irq;
- d->handle(ec->irq, d, regs);
- called ++;
- }
- }
- desc->chip->unmask(irq);
-
- if (called == 0)
- ecard_check_lockup(desc);
-}
-
-#define ecard_irqexp_handler NULL
-#define ecard_probeirqhw() (0)
-
-unsigned int ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed)
-{
- unsigned long address = 0;
- int slot = ec->slot_no;
-
- ectcr &= ~(1 << slot);
-
- switch (type) {
- case ECARD_MEMC:
- address = IO_EC_MEMC_BASE + (slot << 12);
- break;
-
- case ECARD_IOC:
- address = IO_EC_IOC_BASE + (slot << 12) + (speed << 17);
- break;
-
- default:
- break;
- }
-
- return address;
-}
-
-static int ecard_prints(char *buffer, ecard_t *ec)
-{
- char *start = buffer;
-
- buffer += sprintf(buffer, " %d: ", ec->slot_no);
-
- if (ec->cid.id == 0) {
- struct in_chunk_dir incd;
-
- buffer += sprintf(buffer, "[%04X:%04X] ",
- ec->cid.manufacturer, ec->cid.product);
-
- if (!ec->card_desc && ec->cid.cd &&
- ecard_readchunk(&incd, ec, 0xf5, 0)) {
- ec->card_desc = kmalloc(strlen(incd.d.string)+1, GFP_KERNEL);
-
- if (ec->card_desc)
- strcpy((char *)ec->card_desc, incd.d.string);
- }
-
- buffer += sprintf(buffer, "%s\n", ec->card_desc ? ec->card_desc : "*unknown*");
- } else
- buffer += sprintf(buffer, "Simple card %d\n", ec->cid.id);
-
- return buffer - start;
-}
-
-static int get_ecard_dev_info(char *buf, char **start, off_t pos, int count)
-{
- ecard_t *ec = cards;
- off_t at = 0;
- int len, cnt;
-
- cnt = 0;
- while (ec && count > cnt) {
- len = ecard_prints(buf, ec);
- at += len;
- if (at >= pos) {
- if (!*start) {
- *start = buf + (pos - (at - len));
- cnt = at - pos;
- } else
- cnt += len;
- buf += len;
- }
- ec = ec->next;
- }
- return (count > cnt) ? cnt : count;
-}
-
-static struct proc_dir_entry *proc_bus_ecard_dir = NULL;
-
-static void ecard_proc_init(void)
-{
- proc_bus_ecard_dir = proc_mkdir("ecard", proc_bus);
- create_proc_info_entry("devices", 0, proc_bus_ecard_dir,
- get_ecard_dev_info);
-}
-
-#define ec_set_resource(ec,nr,st,sz,flg) \
- do { \
- (ec)->resource[nr].name = ec->dev.bus_id; \
- (ec)->resource[nr].start = st; \
- (ec)->resource[nr].end = (st) + (sz) - 1; \
- (ec)->resource[nr].flags = flg; \
- } while (0)
-
-static void __init ecard_init_resources(struct expansion_card *ec)
-{
- unsigned long base = PODSLOT_IOC0_BASE;
- unsigned int slot = ec->slot_no;
- int i;
-
- ec_set_resource(ec, ECARD_RES_MEMC,
- PODSLOT_MEMC_BASE + (slot << 14),
- PODSLOT_MEMC_SIZE, IORESOURCE_MEM);
-
- for (i = 0; i < ECARD_RES_IOCSYNC - ECARD_RES_IOCSLOW; i++) {
- ec_set_resource(ec, i + ECARD_RES_IOCSLOW,
- base + (slot << 14) + (i << 19),
- PODSLOT_IOC_SIZE, IORESOURCE_MEM);
- }
-
- for (i = 0; i < ECARD_NUM_RESOURCES; i++) {
- if (ec->resource[i].start &&
- request_resource(&iomem_resource, &ec->resource[i])) {
- printk(KERN_ERR "%s: resource(s) not available\n",
- ec->dev.bus_id);
- ec->resource[i].end -= ec->resource[i].start;
- ec->resource[i].start = 0;
- }
- }
-}
-
-static ssize_t ecard_show_irq(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->irq);
-}
-
-static ssize_t ecard_show_vendor(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->cid.manufacturer);
-}
-
-static ssize_t ecard_show_device(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->cid.product);
-}
-
-static ssize_t ecard_show_dma(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->dma);
-}
-
-static ssize_t ecard_show_resources(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- char *str = buf;
- int i;
-
- for (i = 0; i < ECARD_NUM_RESOURCES; i++)
- str += sprintf(str, "%08lx %08lx %08lx\n",
- ec->resource[i].start,
- ec->resource[i].end,
- ec->resource[i].flags);
-
- return str - buf;
-}
-
-static DEVICE_ATTR(irq, S_IRUGO, ecard_show_irq, NULL);
-static DEVICE_ATTR(vendor, S_IRUGO, ecard_show_vendor, NULL);
-static DEVICE_ATTR(device, S_IRUGO, ecard_show_device, NULL);
-static DEVICE_ATTR(dma, S_IRUGO, ecard_show_dma, NULL);
-static DEVICE_ATTR(resource, S_IRUGO, ecard_show_resources, NULL);
-
-/*
- * Probe for an expansion card.
- *
- * If bit 1 of the first byte of the card is set, then the
- * card does not exist.
- */
-static int __init
-ecard_probe(int slot, card_type_t type)
-{
- ecard_t **ecp;
- ecard_t *ec;
- struct ex_ecid cid;
- int i, rc = -ENOMEM;
-
- ec = kzalloc(sizeof(ecard_t), GFP_KERNEL);
- if (!ec)
- goto nomem;
-
- ec->slot_no = slot;
- ec->type = type;
- ec->irq = NO_IRQ;
- ec->fiq = NO_IRQ;
- ec->dma = NO_DMA;
- ec->card_desc = NULL;
- ec->ops = &ecard_default_ops;
-
- rc = -ENODEV;
- if ((ec->podaddr = ecard_address(ec, type, ECARD_SYNC)) == 0)
- goto nodev;
-
- cid.r_zero = 1;
- ecard_readbytes(&cid, ec, 0, 16, 0);
- if (cid.r_zero)
- goto nodev;
-
- ec->cid.id = cid.r_id;
- ec->cid.cd = cid.r_cd;
- ec->cid.is = cid.r_is;
- ec->cid.w = cid.r_w;
- ec->cid.manufacturer = ecard_getu16(cid.r_manu);
- ec->cid.product = ecard_getu16(cid.r_prod);
- ec->cid.country = cid.r_country;
- ec->cid.irqmask = cid.r_irqmask;
- ec->cid.irqoff = ecard_gets24(cid.r_irqoff);
- ec->cid.fiqmask = cid.r_fiqmask;
- ec->cid.fiqoff = ecard_gets24(cid.r_fiqoff);
- ec->fiqaddr =
- ec->irqaddr = (unsigned char *)ioaddr(ec->podaddr);
-
- if (ec->cid.is) {
- ec->irqmask = ec->cid.irqmask;
- ec->irqaddr += ec->cid.irqoff;
- ec->fiqmask = ec->cid.fiqmask;
- ec->fiqaddr += ec->cid.fiqoff;
- } else {
- ec->irqmask = 1;
- ec->fiqmask = 4;
- }
-
- for (i = 0; i < ARRAY_SIZE(blacklist); i++)
- if (blacklist[i].manufacturer == ec->cid.manufacturer &&
- blacklist[i].product == ec->cid.product) {
- ec->card_desc = blacklist[i].type;
- break;
- }
-
- snprintf(ec->dev.bus_id, sizeof(ec->dev.bus_id), "ecard%d", slot);
- ec->dev.parent = NULL;
- ec->dev.bus = &ecard_bus_type;
- ec->dev.dma_mask = &ec->dma_mask;
- ec->dma_mask = (u64)0xffffffff;
-
- ecard_init_resources(ec);
-
- /*
- * hook the interrupt handlers
- */
- ec->irq = 32 + slot;
- set_irq_chip(ec->irq, &ecard_chip);
- set_irq_handler(ec->irq, do_level_IRQ);
- set_irq_flags(ec->irq, IRQF_VALID);
-
- for (ecp = &cards; *ecp; ecp = &(*ecp)->next);
-
- *ecp = ec;
- slot_to_expcard[slot] = ec;
-
- device_register(&ec->dev);
- device_create_file(&ec->dev, &dev_attr_dma);
- device_create_file(&ec->dev, &dev_attr_irq);
- device_create_file(&ec->dev, &dev_attr_resource);
- device_create_file(&ec->dev, &dev_attr_vendor);
- device_create_file(&ec->dev, &dev_attr_device);
-
- return 0;
-
-nodev:
- kfree(ec);
-nomem:
- return rc;
-}
-
-/*
- * Initialise the expansion card system.
- * Locate all hardware - interrupt management and
- * actual cards.
- */
-static int __init ecard_init(void)
-{
- int slot, irqhw;
-
- printk("Probing expansion cards\n");
-
- for (slot = 0; slot < MAX_ECARDS; slot ++) {
- ecard_probe(slot, ECARD_IOC);
- }
-
- irqhw = ecard_probeirqhw();
-
- set_irq_chained_handler(IRQ_EXPANSIONCARD,
- irqhw ? ecard_irqexp_handler : ecard_irq_handler);
-
- ecard_proc_init();
-
- return 0;
-}
-
-subsys_initcall(ecard_init);
-
-/*
- * ECARD "bus"
- */
-static const struct ecard_id *
-ecard_match_device(const struct ecard_id *ids, struct expansion_card *ec)
-{
- int i;
-
- for (i = 0; ids[i].manufacturer != 65535; i++)
- if (ec->cid.manufacturer == ids[i].manufacturer &&
- ec->cid.product == ids[i].product)
- return ids + i;
-
- return NULL;
-}
-
-static int ecard_drv_probe(struct device *dev)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- struct ecard_driver *drv = ECARD_DRV(dev->driver);
- const struct ecard_id *id;
- int ret;
-
- id = ecard_match_device(drv->id_table, ec);
-
- ecard_claim(ec);
- ret = drv->probe(ec, id);
- if (ret)
- ecard_release(ec);
- return ret;
-}
-
-static int ecard_drv_remove(struct device *dev)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- struct ecard_driver *drv = ECARD_DRV(dev->driver);
-
- drv->remove(ec);
- ecard_release(ec);
-
- return 0;
-}
-
-/*
- * Before rebooting, we must make sure that the expansion card is in a
- * sensible state, so it can be re-detected. This means that the first
- * page of the ROM must be visible. We call the expansion cards reset
- * handler, if any.
- */
-static void ecard_drv_shutdown(struct device *dev)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- struct ecard_driver *drv = ECARD_DRV(dev->driver);
- struct ecard_request req;
-
- if (drv->shutdown)
- drv->shutdown(ec);
- ecard_release(ec);
- req.req = req_reset;
- req.ec = ec;
- ecard_call(&req);
-}
-
-int ecard_register_driver(struct ecard_driver *drv)
-{
- drv->drv.bus = &ecard_bus_type;
- drv->drv.probe = ecard_drv_probe;
- drv->drv.remove = ecard_drv_remove;
- drv->drv.shutdown = ecard_drv_shutdown;
-
- return driver_register(&drv->drv);
-}
-
-void ecard_remove_driver(struct ecard_driver *drv)
-{
- driver_unregister(&drv->drv);
-}
-
-static int ecard_match(struct device *_dev, struct device_driver *_drv)
-{
- struct expansion_card *ec = ECARD_DEV(_dev);
- struct ecard_driver *drv = ECARD_DRV(_drv);
- int ret;
-
- if (drv->id_table) {
- ret = ecard_match_device(drv->id_table, ec) != NULL;
- } else {
- ret = ec->cid.id == drv->id;
- }
-
- return ret;
-}
-
-struct bus_type ecard_bus_type = {
- .name = "ecard",
- .match = ecard_match,
-};
-
-static int ecard_bus_init(void)
-{
- return bus_register(&ecard_bus_type);
-}
-
-postcore_initcall(ecard_bus_init);
-
-EXPORT_SYMBOL(ecard_readchunk);
-EXPORT_SYMBOL(ecard_address);
-EXPORT_SYMBOL(ecard_register_driver);
-EXPORT_SYMBOL(ecard_remove_driver);
-EXPORT_SYMBOL(ecard_bus_type);
projects / mv-sheeva.git / blobdiff