[src/trunk]: src/sys/dev/scsipi Comment what the PF bit means in the MODE SEL...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c37ba606ecba
branches:  trunk
changeset: 514440:c37ba606ecba
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sun Sep 02 22:06:16 2001 +0000

description:
Comment what the PF bit means in the MODE SELECT command, and
define a scsipi_mode_page_header, which has the common fields
(page code and page length) of all mode pages.

diffstat:

 sys/dev/scsipi/scsipi_all.h |  12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diffs (34 lines):

diff -r a85952424d97 -r c37ba606ecba sys/dev/scsipi/scsipi_all.h
--- a/sys/dev/scsipi/scsipi_all.h       Sun Sep 02 21:55:03 2001 +0000
+++ b/sys/dev/scsipi/scsipi_all.h       Sun Sep 02 22:06:16 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: scsipi_all.h,v 1.20 2001/09/02 19:35:21 thorpej Exp $  */
+/*     $NetBSD: scsipi_all.h,v 1.21 2001/09/02 22:06:16 thorpej Exp $  */
 
 /*
  * SCSI and SCSI-like general interface description
@@ -110,7 +110,7 @@
        u_int8_t opcode;
        u_int8_t byte2;
 #define        SMS_SP  0x01            /* save page */
-#define        SMS_PF  0x10
+#define        SMS_PF  0x10            /* page format (0 = SCSI-1, 1 = SCSI-2) */
        u_int8_t unused;
        union {
                struct {
@@ -312,9 +312,13 @@
 } __attribute__((packed));
 
 /*
- * Bits present in the page code octet of the returned mode page.
+ * This part is common to all mode pages.
  */
-#define        PGCODE_MASK     0x3f            /* page code */
+struct scsipi_mode_page_header {
+       u_int8_t pg_code;               /* page code */
+#define        PGCODE_MASK     0x3f            /* page code mask */
 #define        PGCODE_PS       0x80            /* page is savable */
+       u_int8_t pg_length;             /* page length (not including hdr) */
+} __attribute__((__packed__));
 
 #endif /* _DEV_SCSIPI_SCSIPI_ALL_H_ */