linux-kernel - [PATCH 1/2] xhci: Add defines for hardcoded slot states

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Message-Id: <1306963670-6344-1-git-send-email-m.b.lankhorst@gmail.com>
Date:	Wed,  1 Jun 2011 23:27:49 +0200
From:	Maarten Lankhorst <m.b.lankhorst@...il.com>
To:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...nel.org, Maarten Lankhorst <m.b.lankhorst@...il.com>
Subject: [PATCH 1/2] xhci: Add defines for hardcoded slot states

Signed-off-by: Maarten Lankhorst <m.b.lankhorst@...il.com>
---
 drivers/usb/host/xhci-dbg.c |    8 ++++----
 drivers/usb/host/xhci.h     |    5 +++++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 2e04861..1f50b44 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -438,13 +438,13 @@ char *xhci_get_slot_state(struct xhci_hcd *xhci,
 	struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
 
 	switch (GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state))) {
-	case 0:
+	case SLOT_STATE_ENABLED:
 		return "enabled/disabled";
-	case 1:
+	case SLOT_STATE_DEFAULT:
 		return "default";
-	case 2:
+	case SLOT_STATE_ADDRESSED:
 		return "addressed";
-	case 3:
+	case SLOT_STATE_CONFIGURED:
 		return "configured";
 	default:
 		return "reserved";
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ac0196e..bbc1d9a 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -560,6 +560,11 @@ struct xhci_slot_ctx {
 #define SLOT_STATE	(0x1f << 27)
 #define GET_SLOT_STATE(p)	(((p) & (0x1f << 27)) >> 27)
 
+#define SLOT_STATE_DISABLED	0
+#define SLOT_STATE_ENABLED	SLOT_STATE_DISABLED
+#define SLOT_STATE_DEFAULT	1
+#define SLOT_STATE_ADDRESSED	2
+#define SLOT_STATE_CONFIGURED	3
 
 /**
  * struct xhci_ep_ctx
-- 
1.7.4.1

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