add some details relating to SATA device power management

part of a diff from Imre Vadasz via sf@

diff --git a/sys/dev/ata/atascsi.h b/sys/dev/ata/atascsi.h
index d91a85f..a4767e7 100644 (file)
--- a/sys/dev/ata/atascsi.h
+++ b/sys/dev/ata/atascsi.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: atascsi.h,v 1.51 2017/05/31 05:47:29 jmatthew Exp $ */
+/*     $OpenBSD: atascsi.h,v 1.52 2017/05/31 05:54:06 jmatthew Exp $ */
 
 /*
  * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
@@ -50,13 +50,22 @@ struct scsi_link;
 #define ATA_C_DSM              0x06
 
 /*
- * ATA SET FEATURES subcommands
+ * ATA SET FEATURES subcommands (feature field)
  */
 #define ATA_SF_WRITECACHE_EN   0x02
 #define ATA_SF_XFERMODE                0x03
+#define ATA_SF_SATA_FEATURE_EN 0x10
 #define  ATA_SF_XFERMODE_UDMA  0x40
+#define ATA_SF_SATA_FEATURE_DIS        0x90
 #define ATA_SF_LOOKAHEAD_EN    0xaa
 
+/*
+ * ATA SET FEATURES args (count field)
+ */
+#define ATA_SF_SATA_DEVIPS     0x03    /* Device-initiated power management */
+#define ATA_SF_SATA_DEVAPS     0x07    /* Device Automatic Partial to Slumber transitions */
+#define ATA_SF_SATA_DEVSLEEP   0x09    /* DevSleep power management state */
+
 struct ata_identify {
        u_int16_t       config;         /*   0 */
        u_int16_t       ncyls;          /*   1 */
@@ -103,11 +112,18 @@ struct ata_identify {
        u_int16_t       satacap;        /*  76 */
 #define ATA_SATACAP_GEN1       0x0002
 #define ATA_SATACAP_GEN2       0x0004
+#define ATA_SATACAP_GEN3       0x0008
 #define ATA_SATACAP_NCQ                0x0100
-#define ATA_SATACAP_PWRMGMT    0x0200
+#define ATA_SATACAP_HIPM       0x0200
+#define ATA_SATACAP_HOSTAPS    0x2000
+#define ATA_SATACAP_DEVAPS     0x4000
        u_int16_t       reserved6;      /*  77 */
        u_int16_t       satafsup;       /*  78 */
+#define ATA_SATAFSUP_DIPM      0x0008
+#define ATA_SATAFSUP_DEVSLP    0x0100
        u_int16_t       satafen;        /*  79 */
+#define ATA_SATAFEN_DIPM       0x0008
+#define ATA_SATAFEN_DEVSLP     0x0100
        u_int16_t       majver;         /*  80 */
        u_int16_t       minver;         /*  81 */
        u_int16_t       cmdset82;       /*  82 */