1 files changed, 10 insertions, 157 deletions

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 258805da15c..92c9b90931e 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -62,160 +62,6 @@
 
 struct class *ide_port_class;
 
-/*
- *	Locks for IDE setting functionality
- */
-
-DEFINE_MUTEX(ide_setting_mtx);
-
-ide_devset_get(io_32bit, io_32bit);
-
-static int set_io_32bit(ide_drive_t *drive, int arg)
-{
-	if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
-		return -EPERM;
-
-	if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
-		return -EINVAL;
-
-	drive->io_32bit = arg;
-
-	return 0;
-}
-
-ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
-
-static int set_ksettings(ide_drive_t *drive, int arg)
-{
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	if (arg)
-		drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
-	else
-		drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
-
-	return 0;
-}
-
-ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
-
-static int set_using_dma(ide_drive_t *drive, int arg)
-{
-#ifdef CONFIG_BLK_DEV_IDEDMA
-	int err = -EPERM;
-
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	if (ata_id_has_dma(drive->id) == 0)
-		goto out;
-
-	if (drive->hwif->dma_ops == NULL)
-		goto out;
-
-	err = 0;
-
-	if (arg) {
-		if (ide_set_dma(drive))
-			err = -EIO;
-	} else
-		ide_dma_off(drive);
-
-out:
-	return err;
-#else
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	return -EPERM;
-#endif
-}
-
-/*
- * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
- */
-static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
-{
-	switch (req_pio) {
-	case 202:
-	case 201:
-	case 200:
-	case 102:
-	case 101:
-	case 100:
-		return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
-	case 9:
-	case 8:
-		return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
-	case 7:
-	case 6:
-		return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
-	default:
-		return 0;
-	}
-}
-
-static int set_pio_mode(ide_drive_t *drive, int arg)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (arg < 0 || arg > 255)
-		return -EINVAL;
-
-	if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
-	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
-		return -ENOSYS;
-
-	if (set_pio_mode_abuse(drive->hwif, arg)) {
-		if (arg == 8 || arg == 9) {
-			unsigned long flags;
-
-			/* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
-			spin_lock_irqsave(&hwif->lock, flags);
-			port_ops->set_pio_mode(drive, arg);
-			spin_unlock_irqrestore(&hwif->lock, flags);
-		} else
-			port_ops->set_pio_mode(drive, arg);
-	} else {
-		int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
-
-		ide_set_pio(drive, arg);
-
-		if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
-			if (keep_dma)
-				ide_dma_on(drive);
-		}
-	}
-
-	return 0;
-}
-
-ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
-
-static int set_unmaskirq(ide_drive_t *drive, int arg)
-{
-	if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
-		return -EPERM;
-
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	if (arg)
-		drive->dev_flags |= IDE_DFLAG_UNMASK;
-	else
-		drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-
-	return 0;
-}
-
-ide_ext_devset_rw_sync(io_32bit, io_32bit);
-ide_ext_devset_rw_sync(keepsettings, ksettings);
-ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
-ide_ext_devset_rw_sync(using_dma, using_dma);
-__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
-
 /**
  * ide_device_get	-	get an additional reference to a ide_drive_t
  * @drive:	device to get a reference to
@@ -337,6 +183,7 @@ static int ide_set_dev_param_mask(const char *s, struct kernel_param *kp)
 	int a, b, i, j = 1;
 	unsigned int *dev_param_mask = (unsigned int *)kp->arg;
 
+	/* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */
 	if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 &&
 	    sscanf(s, "%d.%d", &a, &b) != 2)
 		return -EINVAL;
@@ -349,7 +196,7 @@ static int ide_set_dev_param_mask(const char *s, struct kernel_param *kp)
 	if (j)
 		*dev_param_mask |= (1 << i);
 	else
-		*dev_param_mask &= (1 << i);
+		*dev_param_mask &= ~(1 << i);
 
 	return 0;
 }
@@ -392,6 +239,8 @@ 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;
 
+	/* controller . device (0 or 1) : Cylinders , Heads , Sectors */
+	/* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */
 	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;
@@ -407,7 +256,7 @@ static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
 	if (j)
 		ide_disks |= (1 << i);
 	else
-		ide_disks &= (1 << i);
+		ide_disks &= ~(1 << i);
 
 	ide_disks_chs[i].cyl  = c;
 	ide_disks_chs[i].head = h;
@@ -469,6 +318,8 @@ static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
 {
 	int i, j = 1;
 
+	/* controller (ignore) */
+	/* controller : 1 (ignore) | 0 (use) */
 	if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
 		return -EINVAL;
 
@@ -478,7 +329,7 @@ static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
 	if (j)
 		ide_ignore_cable |= (1 << i);
 	else
-		ide_ignore_cable &= (1 << i);
+		ide_ignore_cable &= ~(1 << i);
 
 	return 0;
 }
@@ -522,6 +373,8 @@ static int __init ide_init(void)
 		goto out_port_class;
 	}
 
+	ide_acpi_init();
+
 	proc_ide_create();
 
 	return 0;