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-rw-r--r--include/linux/ata.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index d2873b732bb..f512104a1a3 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -192,6 +192,7 @@ enum {
ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */
ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */
ATA_TFLAG_LBA = (1 << 4), /* enable LBA */
+ ATA_TFLAG_POLLING = (1 << 5), /* set nIEN to 1 and use polling */
};
enum ata_tf_protocols {
@@ -261,6 +262,8 @@ struct ata_taskfile {
((u64) (id)[(n) + 1] << 16) | \
((u64) (id)[(n) + 0]) )
+#define ata_id_cdb_intr(id) (((id)[0] & 0x60) == 0x20)
+
static inline int ata_id_current_chs_valid(const u16 *id)
{
/* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
@@ -290,6 +293,14 @@ static inline int is_atapi_taskfile(const struct ata_taskfile *tf)
(tf->protocol == ATA_PROT_ATAPI_DMA);
}
+static inline int is_multi_taskfile(struct ata_taskfile *tf)
+{
+ return (tf->command == ATA_CMD_READ_MULTI) ||
+ (tf->command == ATA_CMD_WRITE_MULTI) ||
+ (tf->command == ATA_CMD_READ_MULTI_EXT) ||
+ (tf->command == ATA_CMD_WRITE_MULTI_EXT);
+}
+
static inline int ata_ok(u8 status)
{
return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR))