[PATCH 04/15] usb: xhci: use macros for formatting values

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

We have function-like macros for formatting various values that we stuff
into the descriptors instead of manually having to mask and shift.

Make use of these to make the code more concise.

No functional change.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 drivers/usb/host/xhci-mem.c  | 18 ++++++------------
 drivers/usb/host/xhci-ring.c | 29 +++++++++++++----------------
 drivers/usb/host/xhci.c      |  9 +++------
 3 files changed, 22 insertions(+), 34 deletions(-)

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index db38fd43f65a..1a66bc6a61a4 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -249,8 +249,7 @@ static void xhci_link_segments(struct xhci_segment *prev,
 		 */
 		val = le32_to_cpu(prev->trbs[TRBS_PER_SEGMENT-1].link.control);
 		val &= ~TRB_TYPE_BITMASK;
-		val |= (TRB_LINK << TRB_TYPE_SHIFT);
-
+		val |= TRB_TYPE(TRB_LINK);
 		prev->trbs[TRBS_PER_SEGMENT-1].link.control = cpu_to_le32(val);
 	}
 }
@@ -826,25 +825,22 @@ void xhci_setup_addressable_virt_dev(struct xhci_ctrl *ctrl,
 
 	/* Step 4 - ring already allocated */
 	/* Step 5 */
-	ep0_ctx->ep_info2 = cpu_to_le32(CTRL_EP << EP_TYPE_SHIFT);
+	ep0_ctx->ep_info2 = cpu_to_le32(EP_TYPE(CTRL_EP));
 	dev_dbg(&udev->dev, "SPEED = %d\n", speed);
 
 	switch (speed) {
 	case USB_SPEED_SUPER:
-		ep0_ctx->ep_info2 |= cpu_to_le32(((512 & MAX_PACKET_MASK) <<
-					MAX_PACKET_SHIFT));
+		ep0_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(512));
 		dev_dbg(&udev->dev, "Setting Packet size = 512bytes\n");
 		break;
 	case USB_SPEED_HIGH:
 	/* USB core guesses at a 64-byte max packet first for FS devices */
 	case USB_SPEED_FULL:
-		ep0_ctx->ep_info2 |= cpu_to_le32(((64 & MAX_PACKET_MASK) <<
-					MAX_PACKET_SHIFT));
+		ep0_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(64));
 		dev_dbg(&udev->dev, "Setting Packet size = 64bytes\n");
 		break;
 	case USB_SPEED_LOW:
-		ep0_ctx->ep_info2 |= cpu_to_le32(((8 & MAX_PACKET_MASK) <<
-					MAX_PACKET_SHIFT));
+		ep0_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(8));
 		dev_dbg(&udev->dev, "Setting Packet size = 8bytes\n");
 		break;
 	default:
@@ -853,9 +849,7 @@ void xhci_setup_addressable_virt_dev(struct xhci_ctrl *ctrl,
 	}
 
 	/* EP 0 can handle "burst" sizes of 1, so Max Burst Size field is 0 */
-	ep0_ctx->ep_info2 |=
-			cpu_to_le32(((0 & MAX_BURST_MASK) << MAX_BURST_SHIFT) |
-			((3 & ERROR_COUNT_MASK) << ERROR_COUNT_SHIFT));
+	ep0_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(0) | ERROR_COUNT(3));
 
 	trb_64 = (uintptr_t)virt_dev->eps[0].ring->first_seg->trbs;
 	ep0_ctx->deq = cpu_to_le64(trb_64 | virt_dev->eps[0].ring->cycle_state);
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index d725b71983cd..818b662e70d2 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -709,15 +709,14 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe,
 							   maxpacketsize,
 							   num_trbs - 1);
 
-		length_field = ((trb_buff_len & TRB_LEN_MASK) |
+		length_field = (TRB_LEN(trb_buff_len) |
 				remainder |
-				((0 & TRB_INTR_TARGET_MASK) <<
-				TRB_INTR_TARGET_SHIFT));
+				TRB_INTR_TARGET(0));
 
 		trb_fields[0] = lower_32_bits(addr);
 		trb_fields[1] = upper_32_bits(addr);
 		trb_fields[2] = length_field;
-		trb_fields[3] = field | (TRB_NORMAL << TRB_TYPE_SHIFT);
+		trb_fields[3] = field | TRB_TYPE(TRB_NORMAL);
 
 		queue_trb(ctrl, ring, (num_trbs > 1), trb_fields);
 
@@ -853,7 +852,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 	/* Queue setup TRB - see section 6.4.1.2.1 */
 	/* FIXME better way to translate setup_packet into two u32 fields? */
 	field = 0;
-	field |= TRB_IDT | (TRB_SETUP << TRB_TYPE_SHIFT);
+	field |= TRB_IDT | TRB_TYPE(TRB_SETUP);
 	if (start_cycle == 0)
 		field |= 0x1;
 
@@ -861,9 +860,9 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 	if (HC_VERSION(xhci_readl(&ctrl->hccr->cr_capbase)) >= 0x100) {
 		if (length > 0) {
 			if (req->requesttype & USB_DIR_IN)
-				field |= (TRB_DATA_IN << TRB_TX_TYPE_SHIFT);
+				field |= TRB_TX_TYPE(TRB_DATA_IN);
 			else
-				field |= (TRB_DATA_OUT << TRB_TX_TYPE_SHIFT);
+				field |= TRB_TX_TYPE(TRB_DATA_OUT);
 		}
 	}
 
@@ -879,8 +878,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 	trb_fields[1] = le16_to_cpu(req->index) |
 			le16_to_cpu(req->length) << 16;
 	/* TRB_LEN | (TRB_INTR_TARGET) */
-	trb_fields[2] = (8 | ((0 & TRB_INTR_TARGET_MASK) <<
-			TRB_INTR_TARGET_SHIFT));
+	trb_fields[2] = (TRB_LEN(8) | TRB_INTR_TARGET(0));
 	/* Immediate data in pointer */
 	trb_fields[3] = field;
 	queue_trb(ctrl, ep_ring, true, trb_fields);
@@ -890,15 +888,15 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 	/* If there's data, queue data TRBs */
 	/* Only set interrupt on short packet for IN endpoints */
 	if (usb_pipein(pipe))
-		field = TRB_ISP | (TRB_DATA << TRB_TYPE_SHIFT);
+		field = TRB_ISP | TRB_TYPE(TRB_DATA);
 	else
-		field = (TRB_DATA << TRB_TYPE_SHIFT);
+		field = TRB_TYPE(TRB_DATA);
 
-	length_field = (length & TRB_LEN_MASK) | xhci_td_remainder(length) |
+	length_field = TRB_LEN(length) | xhci_td_remainder(length) |
 			((0 & TRB_INTR_TARGET_MASK) << TRB_INTR_TARGET_SHIFT);
 	dev_dbg(&udev->dev, "length_field = %d, length = %d,"
 		"xhci_td_remainder(length) = %d , TRB_INTR_TARGET(0) = %d\n",
-		length_field, (length & TRB_LEN_MASK),
+		length_field, TRB_LEN(length),
 		xhci_td_remainder(length), 0);
 
 	if (req->requesttype & USB_DIR_IN)
@@ -934,11 +932,10 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 
 	trb_fields[0] = 0;
 	trb_fields[1] = 0;
-	trb_fields[2] = ((0 & TRB_INTR_TARGET_MASK) << TRB_INTR_TARGET_SHIFT);
+	trb_fields[2] = TRB_INTR_TARGET(0);
 		/* Event on completion */
 	trb_fields[3] = field | TRB_IOC |
-			(TRB_STATUS << TRB_TYPE_SHIFT) |
-			ep_ring->cycle_state;
+			TRB_TYPE(TRB_STATUS) | ep_ring->cycle_state;
 
 	queue_trb(ctrl, ep_ring, false, trb_fields);
 
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 01817d9c79cd..92101f8f67d9 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -568,8 +568,7 @@ static int xhci_set_configuration(struct usb_device *udev)
 			cpu_to_le32(EP_MAX_ESIT_PAYLOAD_HI(max_esit_payload) |
 			EP_INTERVAL(interval) | EP_MULT(mult));
 
-		ep_ctx[ep_index]->ep_info2 =
-			cpu_to_le32(ep_type << EP_TYPE_SHIFT);
+		ep_ctx[ep_index]->ep_info2 = cpu_to_le32(EP_TYPE(ep_type));
 		ep_ctx[ep_index]->ep_info2 |=
 			cpu_to_le32(MAX_PACKET
 			(get_unaligned(&endpt_desc->wMaxPacketSize)));
@@ -766,8 +765,7 @@ int xhci_check_maxpacket(struct usb_device *udev)
 				ctrl->devs[slot_id]->out_ctx, ep_index);
 		in_ctx = ctrl->devs[slot_id]->in_ctx;
 		ep_ctx = xhci_get_ep_ctx(ctrl, in_ctx, ep_index);
-		ep_ctx->ep_info2 &= cpu_to_le32(~((0xffff & MAX_PACKET_MASK)
-						<< MAX_PACKET_SHIFT));
+		ep_ctx->ep_info2 &= cpu_to_le32(~MAX_PACKET(MAX_PACKET_MASK));
 		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet_size));
 
 		/*
@@ -1191,8 +1189,7 @@ static int xhci_lowlevel_init(struct xhci_ctrl *ctrl)
 		return -ENOMEM;
 
 	reg = xhci_readl(&hccr->cr_hcsparams1);
-	descriptor.hub.bNbrPorts = ((reg & HCS_MAX_PORTS_MASK) >>
-						HCS_MAX_PORTS_SHIFT);
+	descriptor.hub.bNbrPorts = HCS_MAX_PORTS(reg);
 
 	/* Port Indicators */
 	reg = xhci_readl(&hccr->cr_hccparams);
-- 
2.39.2