From 0b384f75f7e25e1c15650a56e53f29a1c453c91d Mon Sep 17 00:00:00 2001
From: jmatthew <jmatthew@openbsd.org>
Date: Wed, 31 May 2017 05:54:06 +0000
Subject: [PATCH] add some details relating to SATA device power management
 part of a diff from Imre Vadasz via sf@

---
 sys/dev/ata/atascsi.h | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/sys/dev/ata/atascsi.h b/sys/dev/ata/atascsi.h
index d91a85fa838..a4767e7f63d 100644
--- 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 */
-- 
2.20.1