patch-2.2.4 linux/drivers/block/ide.c

• Lines: 42
• Date: Mon Mar 22 12:44:18 1999
• Orig file: v2.2.3/linux/drivers/block/ide.c
• Orig date: Wed Mar 10 15:29:45 1999

diff -u --recursive --new-file v2.2.3/linux/drivers/block/ide.c linux/drivers/block/ide.c
@@ -254,6 +254,33 @@
 }
 
 /*
+ * CompactFlash cards and their brethern pretend to be removable hard disks, except:
+ *	(1) they never have a slave unit, and
+ *	(2) they don't have doorlock mechanisms.
+ * This test catches them, and is invoked elsewhere when setting appropriate config bits.
+ *
+ * FIXME: This treatment is probably applicable for *all* PCMCIA (PC CARD) devices,
+ * so in linux 2.3.x we should change this to just treat all PCMCIA drives this way,
+ * and get rid of the model-name tests below (too big of an interface change for 2.2.x).
+ * At that time, we might also consider parameterizing the timeouts and retries,
+ * since these are MUCH faster than mechanical drives.	-M.Lord
+ */
+int drive_is_flashcard (ide_drive_t *drive)
+{
+	struct hd_driveid *id = drive->id;
+
+	if (drive->removable && id != NULL) {
+		if (!strncmp(id->model, "KODAK ATA_FLASH", 15)	/* Kodak */
+		 || !strncmp(id->model, "Hitachi CV", 10)		/* Hitachi */
+		 || !strncmp(id->model, "SunDisk SDCFB", 13))	/* SunDisk */
+		{
+			return 1;	/* yes, it is a flash memory card */
+		}
+	}
+	return 0;	/* no, it is not a flash memory card */
+}
+
+/*
  * ide_system_bus_speed() returns what we think is the system VESA/PCI
  * bus speed (in MHz).  This is used for calculating interface PIO timings.
  * The default is 40 for known PCI systems, 50 otherwise.
@@ -2963,6 +2990,7 @@
 /*
  * Probe module
  */
+EXPORT_SYMBOL(drive_is_flashcard);
 EXPORT_SYMBOL(ide_timer_expiry);
 EXPORT_SYMBOL(ide_intr);
 EXPORT_SYMBOL(ide_geninit);