1 files changed, 39 insertions, 0 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 8263a7b74d34..5c4e54a2a8d6 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -43,6 +43,7 @@ enum {
         ATA_MAX_SECTORS_128     = 128,
         ATA_MAX_SECTORS         = 256,
         ATA_MAX_SECTORS_LBA48   = 65535,/* TODO: 65536? */
+        ATA_MAX_SECTORS_TAPE    = 65535,
 
         ATA_ID_WORDS            = 256,
         ATA_ID_SERNO            = 10,
@@ -180,6 +181,7 @@ enum {
         ATA_CMD_VERIFY_EXT      = 0x42,
         ATA_CMD_STANDBYNOW1     = 0xE0,
         ATA_CMD_IDLEIMMEDIATE   = 0xE1,
+        ATA_CMD_SLEEP           = 0xE6,
         ATA_CMD_INIT_DEV_PARAMS = 0x91,
         ATA_CMD_READ_NATIVE_MAX = 0xF8,
         ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
@@ -235,6 +237,7 @@ enum {
 
         /* SETFEATURE Sector counts for SATA features */
         SATA_AN                 = 0x05,  /* Asynchronous Notification */
+        SATA_DIPM               = 0x03,  /* Device Initiated Power Management */
 
         /* ATAPI stuff */
         ATAPI_PKT_DMA           = (1 << 0),
@@ -377,6 +380,26 @@ struct ata_taskfile {
 
 #define ata_id_cdb_intr(id)     (((id)[0] & 0x60) == 0x20)
 
+static inline bool ata_id_has_hipm(const u16 *id)
+{
+        u16 val = id[76];
+
+        if (val == 0 || val == 0xffff)
+                return false;
+
+        return val & (1 << 9);
+}
+
+static inline bool ata_id_has_dipm(const u16 *id)
+{
+        u16 val = id[78];
+
+        if (val == 0 || val == 0xffff)
+                return false;
+
+        return val & (1 << 3);
+}
+
 static inline int ata_id_has_fua(const u16 *id)
 {
         if ((id[84] & 0xC000) != 0x4000)
@@ -402,6 +425,8 @@ static inline int ata_id_has_lba48(const u16 *id)
 {
         if ((id[83] & 0xC000) != 0x4000)
                 return 0;
+        if (!ata_id_u64(id, 100))
+                return 0;
         return id[83] & (1 << 10);
 }
 
@@ -512,6 +537,15 @@ static inline int ata_drive_40wire(const u16 *dev_id)
         return 1;
 }
 
+static inline int ata_drive_40wire_relaxed(const u16 *dev_id)
+{
+        if (ata_id_is_sata(dev_id))
+                return 0;       /* SATA */
+        if ((dev_id[93] & 0x2000) == 0x2000)
+                return 0;       /* 80 wire */
+        return 1;
+}
+
 static inline int atapi_cdb_len(const u16 *dev_id)
 {
         u16 tmp = dev_id[0] & 0x3;
@@ -522,6 +556,11 @@ static inline int atapi_cdb_len(const u16 *dev_id)
         }
 }
 
+static inline int atapi_command_packet_set(const u16 *dev_id)
+{
+        return (dev_id[0] >> 8) & 0x1f;
+}
+
 static inline int is_atapi_taskfile(const struct ata_taskfile *tf)
 {
         return (tf->protocol == ATA_PROT_ATAPI) ||