[PATCH] update ide-cd to new changes, add abort() handlers

drivers/ide/ide-cd.c

@@ -294,7 +294,7 @@
  *
  *************************************************************************/
  
-#define IDECD_VERSION "4.59"
+#define IDECD_VERSION "4.59-ac1"
 
 #include <linux/config.h>
 #include <linux/module.h>
@@ -635,6 +635,23 @@ ide_startstop_t ide_cdrom_error (ide_drive_t *drive, const char *msg, byte stat)
 	return ide_stopped;
 }
 
+ide_startstop_t ide_cdrom_abort (ide_drive_t *drive, const char *msg)
+{
+	struct request *rq;
+
+	if (drive == NULL || (rq = HWGROUP(drive)->rq) == NULL)
+		return ide_stopped;
+	/* retry only "normal" I/O: */
+	if (rq->flags & (REQ_DRIVE_CMD | REQ_DRIVE_TASK)) {
+		rq->errors = 1;
+		ide_end_drive_cmd(drive, BUSY_STAT, 0);
+		return ide_stopped;
+	}
+	rq->errors |= ERROR_RESET;
+	DRIVER(drive)->end_request(drive, 0, 0);
+	return ide_stopped;
+}
+
 static void cdrom_end_request (ide_drive_t *drive, int uptodate)
 {
 	struct request *rq = HWGROUP(drive)->rq;
@@ -899,9 +916,6 @@ static ide_startstop_t cdrom_transfer_packet_command (ide_drive_t *drive,
 			return startstop;
 	}
 
-	if (HWGROUP(drive)->handler != NULL)	/* paranoia check */
-		BUG();
-
 	/* Arm the interrupt handler. */
 	ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry);
 
@@ -1133,9 +1147,6 @@ static ide_startstop_t cdrom_read_intr (ide_drive_t *drive)
 		}
 	}
 
-	if (HWGROUP(drive)->handler != NULL)    /* paranoia check */
-		BUG();
-
 	/* Done moving data!  Wait for another interrupt. */
 	ide_set_handler(drive, &cdrom_read_intr, WAIT_CMD, NULL);
 	return ide_started;
@@ -1470,9 +1481,6 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive)
 		rq->flags |= REQ_FAILED;
 	}
 
-	if (HWGROUP(drive)->handler != NULL)
-		BUG();
-
 	/* Now we wait for another interrupt. */
 	ide_set_handler(drive, &cdrom_pc_intr, WAIT_CMD, cdrom_timer_expiry);
 	return ide_started;
@@ -1863,9 +1871,6 @@ static ide_startstop_t cdrom_write_intr(ide_drive_t *drive)
 			cdrom_end_request(drive, 1);
 	}
 
-	if (HWGROUP(drive)->handler != NULL)	/* paranoia check */
-		BUG();
-
 	/* re-arm handler */
 	ide_set_handler(drive, &cdrom_write_intr, 5 * WAIT_CMD, NULL);
 	return ide_started;
@@ -2837,11 +2842,9 @@ int ide_cdrom_get_capabilities(ide_drive_t *drive, struct atapi_capabilities_pag
 	 * ACER50 (and others?) require the full spec length mode sense
 	 * page capabilities size, but older drives break.
 	 */
-	if (drive->id) {
 	if (!(!strcmp(drive->id->model, "ATAPI CD ROM DRIVE 50X MAX") ||
 	    !strcmp(drive->id->model, "WPI CDS-32X")))
 		size -= sizeof(cap->pad);
-	}
 
 	/* we have to cheat a little here. the packet will eventually
 	 * be queued with ide_cdrom_packet(), which extracts the
@@ -2924,7 +2927,7 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
 	}
 
 	/* The ACER/AOpen 24X cdrom has the speed fields byte-swapped */
-	if (drive->id && !drive->id->model[0] &&
+	if (!drive->id->model[0] &&
 	    !strncmp(drive->id->fw_rev, "241N", 4)) {
 		CDROM_STATE_FLAGS(drive)->current_speed  = 
 			(((unsigned int)cap.curspeed) + (176/2)) / 176;
@@ -3089,12 +3092,7 @@ int ide_cdrom_setup (ide_drive_t *drive)
 	CDROM_CONFIG_FLAGS(drive)->no_doorlock = 0;
 #endif
 
-	if (drive->id != NULL)
-		CDROM_CONFIG_FLAGS(drive)->drq_interrupt =
-			((drive->id->config & 0x0060) == 0x20);
-	else
-		CDROM_CONFIG_FLAGS(drive)->drq_interrupt = 0;
-
+	CDROM_CONFIG_FLAGS(drive)->drq_interrupt = ((drive->id->config & 0x0060) == 0x20);
 	CDROM_CONFIG_FLAGS(drive)->is_changer = 0;
 	CDROM_CONFIG_FLAGS(drive)->cd_r = 0;
 	CDROM_CONFIG_FLAGS(drive)->cd_rw = 0;
@@ -3109,7 +3107,6 @@ int ide_cdrom_setup (ide_drive_t *drive)
 	
 	/* limit transfer size per interrupt. */
 	CDROM_CONFIG_FLAGS(drive)->limit_nframes = 0;
-	if (drive->id != NULL) {
 	/* a testament to the nice quality of Samsung drives... */
 	if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-2430"))
 		CDROM_CONFIG_FLAGS(drive)->limit_nframes = 1;
@@ -3118,7 +3115,6 @@ int ide_cdrom_setup (ide_drive_t *drive)
 	/* the 3231 model does not support the SET_CD_SPEED command */
 	else if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-3231"))
 		cdi->mask |= CDC_SELECT_SPEED;
-	}
 
 #if ! STANDARD_ATAPI
 	/* by default Sanyo 3 CD changer support is turned off and
@@ -3131,7 +3127,6 @@ int ide_cdrom_setup (ide_drive_t *drive)
 	CDROM_CONFIG_FLAGS(drive)->playmsf_as_bcd = 0;
 	CDROM_CONFIG_FLAGS(drive)->subchan_as_bcd = 0;
 
-	if (drive->id != NULL) {
 	if (strcmp (drive->id->model, "V003S0DS") == 0 &&
 	    drive->id->fw_rev[4] == '1' &&
 	    drive->id->fw_rev[6] <= '2') {
@@ -3149,9 +3144,7 @@ int ide_cdrom_setup (ide_drive_t *drive)
 		/* Vertos 600 ESD. */
 		CDROM_CONFIG_FLAGS(drive)->toctracks_as_bcd = 1;
 	}
-
-		else if (strcmp(drive->id->model,
-				 "NEC CD-ROM DRIVE:260") == 0 &&
+	else if (strcmp(drive->id->model, "NEC CD-ROM DRIVE:260") == 0 &&
 		 strncmp(drive->id->fw_rev, "1.01", 4) == 0) { /* FIXME */
 		/* Old NEC260 (not R).
 		   This drive was released before the 1.2 version
@@ -3161,14 +3154,12 @@ int ide_cdrom_setup (ide_drive_t *drive)
 		CDROM_CONFIG_FLAGS(drive)->subchan_as_bcd = 1;
 		CDROM_CONFIG_FLAGS(drive)->nec260         = 1;
 	}
-
 	else if (strcmp(drive->id->model, "WEARNES CDD-120") == 0 &&
 		 strncmp(drive->id->fw_rev, "A1.1", 4) == 0) { /* FIXME */
 		/* Wearnes */
 		CDROM_CONFIG_FLAGS(drive)->playmsf_as_bcd = 1;
 		CDROM_CONFIG_FLAGS(drive)->subchan_as_bcd = 1;
 	}
-
         /* Sanyo 3 CD changer uses a non-standard command
            for CD changing */
         else if ((strcmp(drive->id->model, "CD-ROM CDR-C3 G") == 0) ||
@@ -3177,9 +3168,6 @@ int ide_cdrom_setup (ide_drive_t *drive)
                  /* uses CD in slot 0 when value is set to 3 */
                  cdi->sanyo_slot = 3;
         }
-
-
-	}
 #endif /* not STANDARD_ATAPI */
 
 	info->toc		= NULL;
@@ -3246,6 +3234,7 @@ int ide_cdrom_cleanup(ide_drive_t *drive)
 		printk("%s: ide_cdrom_cleanup failed to unregister device from the cdrom driver.\n", drive->name);
 	kfree(info);
 	drive->driver_data = NULL;
+	blk_queue_prep_rq(&drive->queue, NULL);
 	del_gendisk(g);
 	g->fops = ide_fops;
 	return 0;
@@ -3265,6 +3254,7 @@ static ide_driver_t ide_cdrom_driver = {
 	.do_request		= ide_do_rw_cdrom,
 	.sense			= ide_cdrom_dump_status,
 	.error			= ide_cdrom_error,
+	.abort			= ide_cdrom_abort,
 	.capacity		= ide_cdrom_capacity,
 	.attach			= ide_cdrom_attach,
 	.drives			= LIST_HEAD_INIT(ide_cdrom_driver.drives),