[PATCH] sil24: add constants

Adds constants for ATAPI support to sata_sil24.  This patch is
originally from Jeff Garzik <jgarzik@pobox.com>.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 20 insertions, 1 deletions

diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 55e744d6db88..cb1933a3bd55 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -139,6 +139,7 @@ enum {
         PORT_CS_DEV_RST         = (1 << 1), /* device reset */
         PORT_CS_INIT            = (1 << 2), /* port initialize */
         PORT_CS_IRQ_WOC         = (1 << 3), /* interrupt write one to clear */
+        PORT_CS_CDB16           = (1 << 5), /* 0=12b cdb, 1=16b cdb */
         PORT_CS_RESUME          = (1 << 6), /* port resume */
         PORT_CS_32BIT_ACTV      = (1 << 10), /* 32-bit activation */
         PORT_CS_PM_EN           = (1 << 13), /* port multiplier enable */
@@ -188,11 +189,29 @@ enum {
         PORT_CERR_XFR_PCIPERR   = 35, /* PSD ecode 11 - PCI prity err during transfer */
         PORT_CERR_SENDSERVICE   = 36, /* FIS received while sending service */
 
+        /* bits of PRB control field */
+        PRB_CTRL_PROTOCOL       = (1 << 0), /* override def. ATA protocol */
+        PRB_CTRL_PACKET_READ    = (1 << 4), /* PACKET cmd read */
+        PRB_CTRL_PACKET_WRITE   = (1 << 5), /* PACKET cmd write */
+        PRB_CTRL_NIEN           = (1 << 6), /* Mask completion irq */
+        PRB_CTRL_SRST           = (1 << 7), /* Soft reset request (ign BSY?) */
+
+        /* PRB protocol field */
+        PRB_PROT_PACKET         = (1 << 0),
+        PRB_PROT_TCQ            = (1 << 1),
+        PRB_PROT_NCQ            = (1 << 2),
+        PRB_PROT_READ           = (1 << 3),
+        PRB_PROT_WRITE          = (1 << 4),
+        PRB_PROT_TRANSPARENT    = (1 << 5),
+
         /*
          * Other constants
          */
         SGE_TRM                 = (1 << 31), /* Last SGE in chain */
-        PRB_SOFT_RST            = (1 << 7),  /* Soft reset request (ign BSY?) */
+        SGE_LNK                 = (1 << 30), /* linked list
+                                                Points to SGT, not SGE */
+        SGE_DRD                 = (1 << 29), /* discard data read (/dev/null)
+                                                data address ignored */
 
         /* board id */
         BID_SIL3124             = 0,