ide: add ide_dev_is_sata() helper (take 2)

[linux-2.6-omap-h63xx.git] / include / linux / ide.h

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 5f5daad8bc541acbd9877b558a471b422aa816c4..b9f66c10caa04b26a413fb450ce8237d91c74e5a 100644 (file)
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -555,7 +555,7 @@ typedef struct ide_drive_s {
        char            name[4];        /* drive name, such as "hda" */
         char            driver_req[10];        /* requests specific driver */
 
-       request_queue_t         *queue; /* request queue */
+       struct request_queue    *queue; /* request queue */
 
        struct request          *rq;    /* current request */
        struct ide_drive_s      *next;  /* circular list of hwgroup drives */
@@ -1206,7 +1206,7 @@ extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
 extern int ide_spin_wait_hwgroup(ide_drive_t *);
 extern void ide_timer_expiry(unsigned long);
 extern irqreturn_t ide_intr(int irq, void *dev_id);
-extern void do_ide_request(request_queue_t *);
+extern void do_ide_request(struct request_queue *);
 
 void ide_init_disk(struct gendisk *, ide_drive_t *);
 
@@ -1285,13 +1285,14 @@ void ide_init_sg_cmd(ide_drive_t *, struct request *);
 #define BAD_DMA_DRIVE          0
 #define GOOD_DMA_DRIVE         1
 
-#ifdef CONFIG_BLK_DEV_IDEDMA
 struct drive_list_entry {
        const char *id_model;
        const char *id_firmware;
 };
 
 int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
 int __ide_dma_bad_drive(ide_drive_t *);
 int __ide_dma_good_drive(ide_drive_t *);
 u8 ide_max_dma_mode(ide_drive_t *);
@@ -1312,7 +1313,6 @@ void ide_dma_host_off(ide_drive_t *);
 void ide_dma_off_quietly(ide_drive_t *);
 void ide_dma_host_on(ide_drive_t *);
 extern int __ide_dma_on(ide_drive_t *);
-extern int __ide_dma_check(ide_drive_t *);
 extern int ide_dma_setup(ide_drive_t *);
 extern void ide_dma_start(ide_drive_t *);
 extern int __ide_dma_end(ide_drive_t *);
@@ -1378,6 +1378,19 @@ static inline int ide_dev_has_iordy(struct hd_driveid *id)
        return ((id->field_valid & 2) && (id->capability & 8)) ? 1 : 0;
 }
 
+static inline int ide_dev_is_sata(struct hd_driveid *id)
+{
+       /*
+        * See if word 93 is 0 AND drive is at least ATA-5 compatible
+        * verifying that word 80 by casting it to a signed type --
+        * this trick allows us to filter out the reserved values of
+        * 0x0000 and 0xffff along with the earlier ATA revisions...
+        */
+       if (id->hw_config == 0 && (short)id->major_rev_num >= 0x0020)
+               return 1;
+       return 0;
+}
+
 u8 ide_dump_status(ide_drive_t *, const char *, u8);
 
 typedef struct ide_pio_timings_s {