Merge branch 'core/topology' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...
[pandora-kernel.git] / drivers / ide / ide.c
index d8f40ee..300431d 100644 (file)
@@ -94,12 +94,6 @@ DEFINE_MUTEX(ide_cfg_mtx);
 
 int noautodma = 0;
 
-#ifdef CONFIG_BLK_DEV_IDEACPI
-int ide_noacpi = 0;
-int ide_noacpitfs = 1;
-int ide_noacpionboot = 1;
-#endif
-
 ide_hwif_t ide_hwifs[MAX_HWIFS];       /* master data repository */
 
 static void ide_port_init_devices_data(ide_hwif_t *);
@@ -293,7 +287,7 @@ EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
 
 /**
  *     ide_unregister          -       free an IDE interface
- *     @index: index of interface (will change soon to a pointer)
+ *     @hwif: IDE interface
  *
  *     Perform the final unregister of an IDE interface. At the moment
  *     we don't refcount interfaces so this will also get split up.
@@ -313,24 +307,22 @@ EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
  *     This is raving bonkers.
  */
 
-void ide_unregister(unsigned int index)
+void ide_unregister(ide_hwif_t *hwif)
 {
-       ide_hwif_t *hwif, *g;
+       ide_hwif_t *g;
        ide_hwgroup_t *hwgroup;
        int irq_count = 0;
 
-       BUG_ON(index >= MAX_HWIFS);
-
        BUG_ON(in_interrupt());
        BUG_ON(irqs_disabled());
+
        mutex_lock(&ide_cfg_mtx);
-       spin_lock_irq(&ide_lock);
-       hwif = &ide_hwifs[index];
-       if (!hwif->present)
-               goto abort;
-       __ide_port_unregister_devices(hwif);
-       hwif->present = 0;
 
+       spin_lock_irq(&ide_lock);
+       if (hwif->present) {
+               __ide_port_unregister_devices(hwif);
+               hwif->present = 0;
+       }
        spin_unlock_irq(&ide_lock);
 
        ide_proc_unregister_port(hwif);
@@ -360,16 +352,15 @@ void ide_unregister(unsigned int index)
        blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
        kfree(hwif->sg_table);
        unregister_blkdev(hwif->major, hwif->name);
-       spin_lock_irq(&ide_lock);
 
        if (hwif->dma_base)
                ide_release_dma_engine(hwif);
 
+       spin_lock_irq(&ide_lock);
        /* restore hwif data to pristine status */
-       ide_init_port_data(hwif, index);
-
-abort:
+       ide_init_port_data(hwif, hwif->index);
        spin_unlock_irq(&ide_lock);
+
        mutex_unlock(&ide_cfg_mtx);
 }
 
@@ -377,7 +368,7 @@ EXPORT_SYMBOL(ide_unregister);
 
 void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
 {
-       memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
+       memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
        hwif->irq = hw->irq;
        hwif->chipset = hw->chipset;
        hwif->gendev.parent = hw->dev;
@@ -573,7 +564,7 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
        if (!(drive->dn % 2))
                ide_acpi_get_timing(hwif);
 
-       memset(&rq, 0, sizeof(rq));
+       blk_rq_init(NULL, &rq);
        memset(&rqpm, 0, sizeof(rqpm));
        memset(&args, 0, sizeof(args));
        rq.cmd_type = REQ_TYPE_PM_SUSPEND;
@@ -611,7 +602,7 @@ static int generic_ide_resume(struct device *dev)
 
        ide_acpi_exec_tfs(drive);
 
-       memset(&rq, 0, sizeof(rq));
+       blk_rq_init(NULL, &rq);
        memset(&rqpm, 0, sizeof(rqpm));
        memset(&args, 0, sizeof(args));
        rq.cmd_type = REQ_TYPE_PM_RESUME;
@@ -866,7 +857,7 @@ static int __init ide_setup(char *s)
 
                printk(" : Enabled support for IDE doublers\n");
                ide_doubler = 1;
-               return 1;
+               goto obsolete_option;
        }
 #endif /* CONFIG_BLK_DEV_IDEDOUBLER */
 
@@ -880,17 +871,17 @@ static int __init ide_setup(char *s)
        if (!strcmp(s, "ide=noacpi")) {
                //printk(" : Disable IDE ACPI support.\n");
                ide_noacpi = 1;
-               return 1;
+               goto obsolete_option;
        }
        if (!strcmp(s, "ide=acpigtf")) {
                //printk(" : Enable IDE ACPI _GTF support.\n");
-               ide_noacpitfs = 0;
-               return 1;
+               ide_acpigtf = 1;
+               goto obsolete_option;
        }
        if (!strcmp(s, "ide=acpionboot")) {
                //printk(" : Call IDE ACPI methods on boot.\n");
-               ide_noacpionboot = 0;
-               return 1;
+               ide_acpionboot = 1;
+               goto obsolete_option;
        }
 #endif /* CONFIG_BLK_DEV_IDEACPI */
 
@@ -924,7 +915,7 @@ static int __init ide_setup(char *s)
                                drive->media = ide_cdrom;
                                /* an ATAPI device ignores DRDY */
                                drive->ready_stat = 0;
-                               goto done;
+                               goto obsolete_option;
                        case -5: /* nodma */
                                drive->nodma = 1;
                                goto obsolete_option;
@@ -948,7 +939,7 @@ static int __init ide_setup(char *s)
                                drive->sect     = drive->bios_sect = vals[2];
                                drive->present  = 1;
                                drive->forced_geom = 1;
-                               goto done;
+                               goto obsolete_option;
                        default:
                                goto bad_option;
                }
@@ -975,9 +966,6 @@ bad_option:
 obsolete_option:
        printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n");
        return 1;
-done:
-       printk("\n");
-       return 1;
 }
 
 EXPORT_SYMBOL(ide_lock);
@@ -1106,13 +1094,6 @@ struct bus_type ide_bus_type = {
 
 EXPORT_SYMBOL_GPL(ide_bus_type);
 
-static void ide_port_class_release(struct device *portdev)
-{
-       ide_hwif_t *hwif = dev_get_drvdata(portdev);
-
-       put_device(&hwif->gendev);
-}
-
 int ide_vlb_clk;
 EXPORT_SYMBOL_GPL(ide_vlb_clk);
 
@@ -1167,6 +1148,51 @@ static unsigned int ide_nowerr;
 module_param_call(nowerr, ide_set_dev_param_mask, NULL, &ide_nowerr, 0);
 MODULE_PARM_DESC(nowerr, "ignore the WRERR_STAT bit for a device");
 
+static unsigned int ide_cdroms;
+
+module_param_call(cdrom, ide_set_dev_param_mask, NULL, &ide_cdroms, 0);
+MODULE_PARM_DESC(cdrom, "force device as a CD-ROM");
+
+struct chs_geom {
+       unsigned int    cyl;
+       u8              head;
+       u8              sect;
+};
+
+static unsigned int ide_disks;
+static struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES];
+
+static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
+{
+       int a, b, c = 0, h = 0, s = 0, i, j = 1;
+
+       if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 &&
+           sscanf(str, "%d.%d:%d", &a, &b, &j) != 3)
+               return -EINVAL;
+
+       i = a * MAX_DRIVES + b;
+
+       if (i >= MAX_HWIFS * MAX_DRIVES || j < 0 || j > 1)
+               return -EINVAL;
+
+       if (c > INT_MAX || h > 255 || s > 255)
+               return -EINVAL;
+
+       if (j)
+               ide_disks |= (1 << i);
+       else
+               ide_disks &= (1 << i);
+
+       ide_disks_chs[i].cyl  = c;
+       ide_disks_chs[i].head = h;
+       ide_disks_chs[i].sect = s;
+
+       return 0;
+}
+
+module_param_call(chs, ide_set_disk_chs, NULL, NULL, 0);
+MODULE_PARM_DESC(chs, "force device as a disk (using CHS)");
+
 static void ide_dev_apply_params(ide_drive_t *drive)
 {
        int i = drive->hwif->index * MAX_DRIVES + drive->select.b.unit;
@@ -1189,6 +1215,25 @@ static void ide_dev_apply_params(ide_drive_t *drive)
                                 drive->name);
                drive->bad_wstat = BAD_R_STAT;
        }
+       if (ide_cdroms & (1 << i)) {
+               printk(KERN_INFO "ide: forcing %s as a CD-ROM\n", drive->name);
+               drive->present = 1;
+               drive->media = ide_cdrom;
+               /* an ATAPI device ignores DRDY */
+               drive->ready_stat = 0;
+       }
+       if (ide_disks & (1 << i)) {
+               drive->cyl  = drive->bios_cyl  = ide_disks_chs[i].cyl;
+               drive->head = drive->bios_head = ide_disks_chs[i].head;
+               drive->sect = drive->bios_sect = ide_disks_chs[i].sect;
+               drive->forced_geom = 1;
+               printk(KERN_INFO "ide: forcing %s as a disk (%d/%d/%d)\n",
+                                drive->name,
+                                drive->cyl, drive->head, drive->sect);
+               drive->present = 1;
+               drive->media = ide_disk;
+               drive->ready_stat = READY_STAT;
+       }
 }
 
 static unsigned int ide_ignore_cable;
@@ -1253,7 +1298,6 @@ static int __init ide_init(void)
                ret = PTR_ERR(ide_port_class);
                goto out_port_class;
        }
-       ide_port_class->dev_release = ide_port_class_release;
 
        init_ide_data();
 
@@ -1294,11 +1338,6 @@ int __init init_module (void)
 
 void __exit cleanup_module (void)
 {
-       int index;
-
-       for (index = 0; index < MAX_HWIFS; ++index)
-               ide_unregister(index);
-
        proc_ide_destroy();
 
        class_destroy(ide_port_class);