^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * EISA bus support functions for sysfs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * (C) 2002, 2003 Marc Zyngier <maz@wild-wind.fr.eu.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/eisa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define SLOT_ADDRESS(r,n) (r->bus_base_addr + (0x1000 * n))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define EISA_DEVINFO(i,s) { .id = { .sig = i }, .name = s }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct eisa_device_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct eisa_device_id id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) char name[50];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #ifdef CONFIG_EISA_NAMES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static struct eisa_device_info __initdata eisa_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "devlist.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define EISA_INFOS (sizeof (eisa_table) / (sizeof (struct eisa_device_info)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define EISA_MAX_FORCED_DEV 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static int enable_dev[EISA_MAX_FORCED_DEV];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static unsigned int enable_dev_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static int disable_dev[EISA_MAX_FORCED_DEV];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static unsigned int disable_dev_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static int is_forced_dev(int *forced_tab,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) int forced_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct eisa_root_device *root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct eisa_device *edev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int i, x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) for (i = 0; i < forced_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) x = (root->bus_nr << 8) | edev->slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (forced_tab[i] == x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static void __init eisa_name_device(struct eisa_device *edev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #ifdef CONFIG_EISA_NAMES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) for (i = 0; i < EISA_INFOS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (!strcmp(edev->id.sig, eisa_table[i].id.sig)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) strlcpy(edev->pretty_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) eisa_table[i].name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) sizeof(edev->pretty_name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) /* No name was found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) sprintf(edev->pretty_name, "EISA device %.7s", edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static char __init *decode_eisa_sig(unsigned long addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static char sig_str[EISA_SIG_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) u8 sig[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) u16 rev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) for (i = 0; i < 4; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #ifdef CONFIG_EISA_VLB_PRIMING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * This ugly stuff is used to wake up VL-bus cards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * (AHA-284x is the only known example), so we can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * read the EISA id.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * Thankfully, this only exists on x86...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) outb(0x80 + i, addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) sig[i] = inb(addr + i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (!i && (sig[0] & 0x80))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) sig_str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) sig_str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) sig_str[2] = (sig[1] & 0x1f) + ('A' - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) rev = (sig[2] << 8) | sig[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) sprintf(sig_str + 3, "%04X", rev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return sig_str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static int eisa_bus_match(struct device *dev, struct device_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct eisa_device *edev = to_eisa_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct eisa_driver *edrv = to_eisa_driver(drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) const struct eisa_device_id *eids = edrv->id_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (!eids)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) while (strlen(eids->sig)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (!strcmp(eids->sig, edev->id.sig) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) edev->state & EISA_CONFIG_ENABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) edev->id.driver_data = eids->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) eids++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static int eisa_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct eisa_device *edev = to_eisa_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) add_uevent_var(env, "MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) struct bus_type eisa_bus_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .name = "eisa",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .match = eisa_bus_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .uevent = eisa_bus_uevent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) EXPORT_SYMBOL(eisa_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) int eisa_driver_register(struct eisa_driver *edrv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) edrv->driver.bus = &eisa_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return driver_register(&edrv->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) EXPORT_SYMBOL(eisa_driver_register);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) void eisa_driver_unregister(struct eisa_driver *edrv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) driver_unregister(&edrv->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) EXPORT_SYMBOL(eisa_driver_unregister);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static ssize_t eisa_show_sig(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct eisa_device *edev = to_eisa_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return sprintf(buf, "%s\n", edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static DEVICE_ATTR(signature, S_IRUGO, eisa_show_sig, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static ssize_t eisa_show_state(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) struct eisa_device *edev = to_eisa_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return sprintf(buf, "%d\n", edev->state & EISA_CONFIG_ENABLED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static DEVICE_ATTR(enabled, S_IRUGO, eisa_show_state, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static ssize_t eisa_show_modalias(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct eisa_device *edev = to_eisa_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) return sprintf(buf, EISA_DEVICE_MODALIAS_FMT "\n", edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static DEVICE_ATTR(modalias, S_IRUGO, eisa_show_modalias, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int __init eisa_init_device(struct eisa_root_device *root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct eisa_device *edev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) int slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) char *sig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) unsigned long sig_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) sig_addr = SLOT_ADDRESS(root, slot) + EISA_VENDOR_ID_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) sig = decode_eisa_sig(sig_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (!sig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return -1; /* No EISA device here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) memcpy(edev->id.sig, sig, EISA_SIG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) edev->slot = slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) edev->state = inb(SLOT_ADDRESS(root, slot) + EISA_CONFIG_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) & EISA_CONFIG_ENABLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) edev->base_addr = SLOT_ADDRESS(root, slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) edev->dma_mask = root->dma_mask; /* Default DMA mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) eisa_name_device(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) edev->dev.parent = root->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) edev->dev.bus = &eisa_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) edev->dev.dma_mask = &edev->dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) edev->dev.coherent_dma_mask = edev->dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) dev_set_name(&edev->dev, "%02X:%02X", root->bus_nr, slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) for (i = 0; i < EISA_MAX_RESOURCES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) #ifdef CONFIG_EISA_NAMES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) edev->res[i].name = edev->pretty_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) edev->res[i].name = edev->id.sig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (is_forced_dev(enable_dev, enable_dev_count, root, edev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) edev->state = EISA_CONFIG_ENABLED | EISA_CONFIG_FORCED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (is_forced_dev(disable_dev, disable_dev_count, root, edev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) edev->state = EISA_CONFIG_FORCED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) static int __init eisa_register_device(struct eisa_device *edev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) int rc = device_register(&edev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) put_device(&edev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) rc = device_create_file(&edev->dev, &dev_attr_signature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) goto err_devreg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) rc = device_create_file(&edev->dev, &dev_attr_enabled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) goto err_sig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) rc = device_create_file(&edev->dev, &dev_attr_modalias);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) goto err_enab;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) err_enab:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) device_remove_file(&edev->dev, &dev_attr_enabled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) err_sig:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) device_remove_file(&edev->dev, &dev_attr_signature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) err_devreg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) device_unregister(&edev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) static int __init eisa_request_resources(struct eisa_root_device *root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct eisa_device *edev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) int slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) for (i = 0; i < EISA_MAX_RESOURCES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) /* Don't register resource for slot 0, since this is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * very likely to fail... :-( Instead, grab the EISA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * id, now we can display something in /proc/ioports.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) /* Only one region for mainboard */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (!slot && i > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) edev->res[i].start = edev->res[i].end = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) if (slot) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) edev->res[i].name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) edev->res[i].start = SLOT_ADDRESS(root, slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) + (i * 0x400);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) edev->res[i].end = edev->res[i].start + 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) edev->res[i].flags = IORESOURCE_IO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) edev->res[i].name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) edev->res[i].start = SLOT_ADDRESS(root, slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) + EISA_VENDOR_ID_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) edev->res[i].end = edev->res[i].start + 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) edev->res[i].flags = IORESOURCE_IO | IORESOURCE_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (request_resource(root->res, &edev->res[i]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) while (--i >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) release_resource(&edev->res[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) static void __init eisa_release_resources(struct eisa_device *edev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) for (i = 0; i < EISA_MAX_RESOURCES; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (edev->res[i].start || edev->res[i].end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) release_resource(&edev->res[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static int __init eisa_probe(struct eisa_root_device *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) int i, c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct eisa_device *edev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) char *enabled_str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) dev_info(root->dev, "Probing EISA bus %d\n", root->bus_nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /* First try to get hold of slot 0. If there is no device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * here, simply fail, unless root->force_probe is set. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) edev = kzalloc(sizeof(*edev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) if (!edev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (eisa_request_resources(root, edev, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) dev_warn(root->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) "EISA: Cannot allocate resource for mainboard\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) kfree(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (!root->force_probe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) goto force_probe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (eisa_init_device(root, edev, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) eisa_release_resources(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) kfree(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (!root->force_probe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) goto force_probe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) dev_info(&edev->dev, "EISA: Mainboard %s detected\n", edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (eisa_register_device(edev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) dev_err(&edev->dev, "EISA: Failed to register %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) eisa_release_resources(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) kfree(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) force_probe:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) for (c = 0, i = 1; i <= root->slots; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) edev = kzalloc(sizeof(*edev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (!edev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) dev_err(root->dev, "EISA: Out of memory for slot %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (eisa_request_resources(root, edev, i)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) dev_warn(root->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) "Cannot allocate resource for EISA slot %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) kfree(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) if (eisa_init_device(root, edev, i)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) eisa_release_resources(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) kfree(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (edev->state == (EISA_CONFIG_ENABLED | EISA_CONFIG_FORCED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) enabled_str = " (forced enabled)";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) else if (edev->state == EISA_CONFIG_FORCED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) enabled_str = " (forced disabled)";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) else if (edev->state == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) enabled_str = " (disabled)";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) enabled_str = "";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) dev_info(&edev->dev, "EISA: slot %d: %s detected%s\n", i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) edev->id.sig, enabled_str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) c++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) if (eisa_register_device(edev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) dev_err(&edev->dev, "EISA: Failed to register %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) edev->id.sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) eisa_release_resources(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) kfree(edev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) dev_info(root->dev, "EISA: Detected %d card%s\n", c, c == 1 ? "" : "s");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static struct resource eisa_root_res = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) .name = "EISA root resource",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) .start = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) .end = 0xffffffff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) .flags = IORESOURCE_IO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) static int eisa_bus_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) int __init eisa_root_register(struct eisa_root_device *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) /* Use our own resources to check if this bus base address has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * been already registered. This prevents the virtual root
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * device from registering after the real one has, for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) * example... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) root->eisa_root_res.name = eisa_root_res.name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) root->eisa_root_res.start = root->res->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) root->eisa_root_res.end = root->res->end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) root->eisa_root_res.flags = IORESOURCE_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) err = request_resource(&eisa_root_res, &root->eisa_root_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) root->bus_nr = eisa_bus_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) err = eisa_probe(root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) release_resource(&root->eisa_root_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) static int __init eisa_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) r = bus_register(&eisa_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) printk(KERN_INFO "EISA bus registered\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) module_param_array(enable_dev, int, &enable_dev_count, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) module_param_array(disable_dev, int, &disable_dev_count, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) postcore_initcall(eisa_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) int EISA_bus; /* for legacy drivers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) EXPORT_SYMBOL(EISA_bus);