static inline int ide_lock_host(struct ide_host *host, ide_hwif_t *hwif)
{
int rc = 0;
if (host->host_flags & IDE_HFLAG_SERIALIZE) {
rc = test_and_set_bit_lock(IDE_HOST_BUSY, &host->host_busy);
if (rc == 0) {
/* for atari only */
ide_get_lock(ide_intr, hwif);
}
}
return rc;
}
static int __init falconide_init(void)
{
struct ide_host *host;
hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
int rc;
if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
return -ENODEV;
printk(KERN_INFO "ide: Falcon IDE controller\n");
if (!request_mem_region(ATA_HD_BASE, 0x40, DRV_NAME)) {
printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
return -EBUSY;
}
falconide_setup_ports(&hw);
host = ide_host_alloc(&falconide_port_info, hws);
if (host == NULL) {
rc = -ENOMEM;
goto err;
}
ide_get_lock(NULL, NULL);
rc = ide_host_register(host, &falconide_port_info, hws);
ide_release_lock();
if (rc)
goto err_free;
return 0;
err_free:
ide_host_free(host);
err:
release_mem_region(ATA_HD_BASE, 0x40);
return rc;
}