lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ide: move device settings code to ide-devsets.c

Browse Source 
Remove stale comment from ide.c while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2009-03-24 23:22:44 +01:00
parent c4e66c36cc
commit 11938c9290
5 changed files with 193 additions and 192 deletions
Download Patch File Download Diff File Expand all files Collapse all files

154
drivers/ide/ide.c
View File

@@ -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