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path: root/drivers/ide/ide-pnp.c
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Diffstat (limited to 'drivers/ide/ide-pnp.c')
-rw-r--r--drivers/ide/ide-pnp.c45
1 files changed, 33 insertions, 12 deletions
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
index c14bb5380c25..6a8953f68e9f 100644
--- a/drivers/ide/ide-pnp.c
+++ b/drivers/ide/ide-pnp.c
@@ -11,34 +11,52 @@
*
* You should have received a copy of the GNU General Public License
* (for example /usr/src/linux/COPYING); if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/pnp.h>
#include <linux/ide.h>
+#define DRV_NAME "ide-pnp"
+
/* Add your devices here :)) */
static struct pnp_device_id idepnp_devices[] = {
- /* Generic ESDI/IDE/ATA compatible hard disk controller */
+ /* Generic ESDI/IDE/ATA compatible hard disk controller */
{.id = "PNP0600", .driver_data = 0},
{.id = ""}
};
-static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
+static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
hw_regs_t hw;
ide_hwif_t *hwif;
+ unsigned long base, ctl;
if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
return -1;
+ base = pnp_port_start(dev, 0);
+ ctl = pnp_port_start(dev, 1);
+
+ if (!request_region(base, 8, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+ DRV_NAME, base, base + 7);
+ return -EBUSY;
+ }
+
+ if (!request_region(ctl, 1, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+ DRV_NAME, ctl);
+ release_region(base, 8);
+ return -EBUSY;
+ }
+
memset(&hw, 0, sizeof(hw));
- ide_std_init_ports(&hw, pnp_port_start(dev, 0),
- pnp_port_start(dev, 1));
+ ide_std_init_ports(&hw, base, ctl);
hw.irq = pnp_irq(dev, 0);
- hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
+ hwif = ide_find_port();
if (hwif) {
u8 index = hwif->index;
u8 idx[4] = { index, 0xff, 0xff, 0xff };
@@ -47,24 +65,27 @@ static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id
ide_init_port_hw(hwif, &hw);
printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
- pnp_set_drvdata(dev,hwif);
+ pnp_set_drvdata(dev, hwif);
ide_device_add(idx, NULL);
return 0;
}
+ release_region(ctl, 1);
+ release_region(base, 8);
+
return -1;
}
-static void idepnp_remove(struct pnp_dev * dev)
+static void idepnp_remove(struct pnp_dev *dev)
{
ide_hwif_t *hwif = pnp_get_drvdata(dev);
- if (hwif)
- ide_unregister(hwif->index, 0, 0);
- else
- printk(KERN_ERR "idepnp: Unable to remove device, please report.\n");
+ ide_unregister(hwif);
+
+ release_region(pnp_port_start(dev, 1), 1);
+ release_region(pnp_port_start(dev, 0), 8);
}
static struct pnp_driver idepnp_driver = {