usb: host: xhci: rename completion codes to match spec

Cleanup only. This patch is a mechaninal rename to make sure our macros
for TRB completion codes match what the specification uses to refer to
such errors. The idea behind this is that it makes it far easier to grep
the specification and match it with implementation.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-hub.c

@@ -418,7 +418,8 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 	/* Wait for last stop endpoint command to finish */
 	wait_for_completion(cmd->completion);
 
-	if (cmd->status == COMP_CMD_ABORT || cmd->status == COMP_CMD_STOP) {
+	if (cmd->status == COMP_COMMAND_ABORTED ||
+			cmd->status == COMP_STOPPED) {
 		xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
 		ret = -ETIME;
 	}

drivers/usb/host/xhci.c

@@ -1823,32 +1823,32 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci,
 	int ret;
 
 	switch (*cmd_status) {
-	case COMP_CMD_ABORT:
-	case COMP_CMD_STOP:
+	case COMP_COMMAND_ABORTED:
+	case COMP_STOPPED:
 		xhci_warn(xhci, "Timeout while waiting for configure endpoint command\n");
 		ret = -ETIME;
 		break;
-	case COMP_ENOMEM:
+	case COMP_RESOURCE_ERROR:
 		dev_warn(&udev->dev,
 			 "Not enough host controller resources for new device state.\n");
 		ret = -ENOMEM;
 		/* FIXME: can we allocate more resources for the HC? */
 		break;
-	case COMP_BW_ERR:
-	case COMP_2ND_BW_ERR:
+	case COMP_BANDWIDTH_ERROR:
+	case COMP_SECONDARY_BANDWIDTH_ERROR:
 		dev_warn(&udev->dev,
 			 "Not enough bandwidth for new device state.\n");
 		ret = -ENOSPC;
 		/* FIXME: can we go back to the old state? */
 		break;
-	case COMP_TRB_ERR:
+	case COMP_TRB_ERROR:
 		/* the HCD set up something wrong */
 		dev_warn(&udev->dev, "ERROR: Endpoint drop flag = 0, "
 				"add flag = 1, "
 				"and endpoint is not disabled.\n");
 		ret = -EINVAL;
 		break;
-	case COMP_DEV_ERR:
+	case COMP_INCOMPATIBLE_DEVICE_ERROR:
 		dev_warn(&udev->dev,
 			 "ERROR: Incompatible device for endpoint configure command.\n");
 		ret = -ENODEV;
@@ -1874,33 +1874,33 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci,
 	struct xhci_virt_device *virt_dev = xhci->devs[udev->slot_id];
 
 	switch (*cmd_status) {
-	case COMP_CMD_ABORT:
-	case COMP_CMD_STOP:
+	case COMP_COMMAND_ABORTED:
+	case COMP_STOPPED:
 		xhci_warn(xhci, "Timeout while waiting for evaluate context command\n");
 		ret = -ETIME;
 		break;
-	case COMP_EINVAL:
+	case COMP_PARAMETER_ERROR:
 		dev_warn(&udev->dev,
 			 "WARN: xHCI driver setup invalid evaluate context command.\n");
 		ret = -EINVAL;
 		break;
-	case COMP_EBADSLT:
+	case COMP_SLOT_NOT_ENABLED_ERROR:
 		dev_warn(&udev->dev,
 			"WARN: slot not enabled for evaluate context command.\n");
 		ret = -EINVAL;
 		break;
-	case COMP_CTX_STATE:
+	case COMP_CONTEXT_STATE_ERROR:
 		dev_warn(&udev->dev,
 			"WARN: invalid context state for evaluate context command.\n");
 		xhci_dbg_ctx(xhci, virt_dev->out_ctx, 1);
 		ret = -EINVAL;
 		break;
-	case COMP_DEV_ERR:
+	case COMP_INCOMPATIBLE_DEVICE_ERROR:
 		dev_warn(&udev->dev,
 			"ERROR: Incompatible device for evaluate context command.\n");
 		ret = -ENODEV;
 		break;
-	case COMP_MEL_ERR:
+	case COMP_MAX_EXIT_LATENCY_TOO_LARGE_ERROR:
 		/* Max Exit Latency too large error */
 		dev_warn(&udev->dev, "WARN: Max Exit Latency too large\n");
 		ret = -EINVAL;
@@ -3496,13 +3496,13 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
 	 */
 	ret = reset_device_cmd->status;
 	switch (ret) {
-	case COMP_CMD_ABORT:
-	case COMP_CMD_STOP:
+	case COMP_COMMAND_ABORTED:
+	case COMP_STOPPED:
 		xhci_warn(xhci, "Timeout waiting for reset device command\n");
 		ret = -ETIME;
 		goto command_cleanup;
-	case COMP_EBADSLT: /* 0.95 completion code for bad slot ID */
-	case COMP_CTX_STATE: /* 0.96 completion code for same thing */
+	case COMP_SLOT_NOT_ENABLED_ERROR: /* 0.95 completion for bad slot ID */
+	case COMP_CONTEXT_STATE_ERROR: /* 0.96 completion code for same thing */
 		xhci_dbg(xhci, "Can't reset device (slot ID %u) in %s state\n",
 				slot_id,
 				xhci_get_slot_state(xhci, virt_dev->out_ctx));
@@ -3862,22 +3862,22 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
 	 * command on a timeout.
 	 */
 	switch (command->status) {
-	case COMP_CMD_ABORT:
-	case COMP_CMD_STOP:
+	case COMP_COMMAND_ABORTED:
+	case COMP_STOPPED:
 		xhci_warn(xhci, "Timeout while waiting for setup device command\n");
 		ret = -ETIME;
 		break;
-	case COMP_CTX_STATE:
-	case COMP_EBADSLT:
+	case COMP_CONTEXT_STATE_ERROR:
+	case COMP_SLOT_NOT_ENABLED_ERROR:
 		xhci_err(xhci, "Setup ERROR: setup %s command for slot %d.\n",
 			 act, udev->slot_id);
 		ret = -EINVAL;
 		break;
-	case COMP_TX_ERR:
+	case COMP_USB_TRANSACTION_ERROR:
 		dev_warn(&udev->dev, "Device not responding to setup %s.\n", act);
 		ret = -EPROTO;
 		break;
-	case COMP_DEV_ERR:
+	case COMP_INCOMPATIBLE_DEVICE_ERROR:
 		dev_warn(&udev->dev,
 			 "ERROR: Incompatible device for setup %s command\n", act);
 		ret = -ENODEV;

drivers/usb/host/xhci.h

@@ -1060,76 +1060,42 @@ struct xhci_transfer_event {
 /* Completion Code - only applicable for some types of TRBs */
 #define	COMP_CODE_MASK		(0xff << 24)
 #define GET_COMP_CODE(p)	(((p) & COMP_CODE_MASK) >> 24)
-#define COMP_SUCCESS	1
-/* Data Buffer Error */
-#define COMP_DB_ERR	2
-/* Babble Detected Error */
-#define COMP_BABBLE	3
-/* USB Transaction Error */
-#define COMP_TX_ERR	4
-/* TRB Error - some TRB field is invalid */
-#define COMP_TRB_ERR	5
-/* Stall Error - USB device is stalled */
-#define COMP_STALL	6
-/* Resource Error - HC doesn't have memory for that device configuration */
-#define COMP_ENOMEM	7
-/* Bandwidth Error - not enough room in schedule for this dev config */
-#define COMP_BW_ERR	8
-/* No Slots Available Error - HC ran out of device slots */
-#define COMP_ENOSLOTS	9
-/* Invalid Stream Type Error */
-#define COMP_STREAM_ERR	10
-/* Slot Not Enabled Error - doorbell rung for disabled device slot */
-#define COMP_EBADSLT	11
-/* Endpoint Not Enabled Error */
-#define COMP_EBADEP	12
-/* Short Packet */
-#define COMP_SHORT_TX	13
-/* Ring Underrun - doorbell rung for an empty isoc OUT ep ring */
-#define COMP_UNDERRUN	14
-/* Ring Overrun - isoc IN ep ring is empty when ep is scheduled to RX */
-#define COMP_OVERRUN	15
-/* Virtual Function Event Ring Full Error */
-#define COMP_VF_FULL	16
-/* Parameter Error - Context parameter is invalid */
-#define COMP_EINVAL	17
-/* Bandwidth Overrun Error - isoc ep exceeded its allocated bandwidth */
-#define COMP_BW_OVER	18
-/* Context State Error - illegal context state transition requested */
-#define COMP_CTX_STATE	19
-/* No Ping Response Error - HC didn't get PING_RESPONSE in time to TX */
-#define COMP_PING_ERR	20
-/* Event Ring is full */
-#define COMP_ER_FULL	21
-/* Incompatible Device Error */
-#define COMP_DEV_ERR	22
-/* Missed Service Error - HC couldn't service an isoc ep within interval */
-#define COMP_MISSED_INT	23
-/* Successfully stopped command ring */
-#define COMP_CMD_STOP	24
-/* Successfully aborted current command and stopped command ring */
-#define COMP_CMD_ABORT	25
-/* Stopped - transfer was terminated by a stop endpoint command */
-#define COMP_STOP	26
-/* Same as COMP_EP_STOPPED, but the transferred length in the event is invalid */
-#define COMP_STOP_INVAL	27
-/* Same as COMP_EP_STOPPED, but a short packet detected */
-#define COMP_STOP_SHORT	28
-/* Max Exit Latency Too Large Error */
-#define COMP_MEL_ERR	29
-/* TRB type 30 reserved */
-/* Isoc Buffer Overrun - an isoc IN ep sent more data than could fit in TD */
-#define COMP_BUFF_OVER	31
-/* Event Lost Error - xHC has an "internal event overrun condition" */
-#define COMP_ISSUES	32
-/* Undefined Error - reported when other error codes don't apply */
-#define COMP_UNKNOWN	33
-/* Invalid Stream ID Error */
-#define COMP_STRID_ERR	34
-/* Secondary Bandwidth Error - may be returned by a Configure Endpoint cmd */
-#define COMP_2ND_BW_ERR	35
-/* Split Transaction Error */
-#define	COMP_SPLIT_ERR	36
+#define COMP_INVALID				0
+#define COMP_SUCCESS				1
+#define COMP_DATA_BUFFER_ERROR			2
+#define COMP_BABBLE_DETECTED_ERROR		3
+#define COMP_USB_TRANSACTION_ERROR		4
+#define COMP_TRB_ERROR				5
+#define COMP_STALL_ERROR			6
+#define COMP_RESOURCE_ERROR			7
+#define COMP_BANDWIDTH_ERROR			8
+#define COMP_NO_SLOTS_AVAILABLE_ERROR		9
+#define COMP_INVALID_STREAM_TYPE_ERROR		10
+#define COMP_SLOT_NOT_ENABLED_ERROR		11
+#define COMP_ENDPOINT_NOT_ENABLED_ERROR		12
+#define COMP_SHORT_PACKET			13
+#define COMP_RING_UNDERRUN			14
+#define COMP_RING_OVERRUN			15
+#define COMP_VF_EVENT_RING_FULL_ERROR		16
+#define COMP_PARAMETER_ERROR			17
+#define COMP_BANDWIDTH_OVERRUN_ERROR		18
+#define COMP_CONTEXT_STATE_ERROR		19
+#define COMP_NO_PING_RESPONSE_ERROR		20
+#define COMP_EVENT_RING_FULL_ERROR		21
+#define COMP_INCOMPATIBLE_DEVICE_ERROR		22
+#define COMP_MISSED_SERVICE_ERROR		23
+#define COMP_COMMAND_RING_STOPPED		24
+#define COMP_COMMAND_ABORTED			25
+#define COMP_STOPPED				26
+#define COMP_STOPPED_LENGTH_INVALID		27
+#define COMP_STOPPED_SHORT_PACKET		28
+#define COMP_MAX_EXIT_LATENCY_TOO_LARGE_ERROR	29
+#define COMP_ISOCH_BUFFER_OVERRUN		31
+#define COMP_EVENT_LOST_ERROR			32
+#define COMP_UNDEFINED_ERROR			33
+#define COMP_INVALID_STREAM_ID_ERROR		34
+#define COMP_SECONDARY_BANDWIDTH_ERROR		35
+#define COMP_SPLIT_TRANSACTION_ERROR		36
 
 struct xhci_link_trb {
 	/* 64-bit segment pointer*/