device/xhci: Factor out common PORTSC code

This commit factors out some code for XHCI port status values.

BUG=b:186792595
TEST=Built coreboot for volteer device

Change-Id: I045405ed224aa8f48f6f628b7d49ec6bafb450d7
Signed-off-by: Robert Zieba <robertzieba@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67933
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

2 files changed, 42 insertions, 39 deletions

diff --git a/src/include/device/xhci.h b/src/include/device/xhci.h
index 17ce846459fb..e5ce8b514ca5 100644
--- a/src/include/device/xhci.h
+++ b/src/include/device/xhci.h
@@ -3,7 +3,7 @@
 #ifndef __DEVICE_XHCI_H__
 #define __DEVICE_XHCI_H__
 
-#include <stdint.h>
+#include <types.h>
 #include <device/device.h>
 #include <commonlib/bsd/cb_err.h>
 
@@ -12,6 +12,42 @@
 #define XHCI_ECP_CAP_ID_LEGACY 1
 #define XHCI_ECP_CAP_ID_SUPP 2
 
+/* Status flags */
+/* Wake on disconnect enable */
+#define XHCI_STATUS_WDE			BIT(26)
+/* Wake on connect enable */
+#define XHCI_STATUS_WCE			BIT(25)
+/* Port link status change */
+#define XHCI_STATUS_PLC			BIT(22)
+/* Connect status change */
+#define XHCI_STATUS_CSC			BIT(17)
+/* Port link status */
+#define XHCI_STATUS_PLS_SHIFT		5
+#define XHCI_STATUS_PLS_MASK		(0xf << XHCI_STATUS_PLS_SHIFT)
+#define XHCI_STATUS_PLS_RESUME		(15 << XHCI_STATUS_PLS_SHIFT)
+
+static inline bool xhci_portsc_csc(uint32_t port_status)
+{
+	return port_status & XHCI_STATUS_CSC;
+}
+
+static inline bool xhci_portsc_wake_capable(uint32_t port_status)
+{
+	return (port_status & XHCI_STATUS_WCE) |
+		  (port_status & XHCI_STATUS_WDE);
+}
+
+static inline bool xhci_portsc_plc(uint32_t port_status)
+{
+	return port_status & XHCI_STATUS_PLC;
+}
+
+static inline bool xhci_portsc_resume(uint32_t port_status)
+{
+	return (port_status & XHCI_STATUS_PLS_MASK) == XHCI_STATUS_PLS_RESUME;
+}
+
+
 struct xhci_supported_protocol {
 	union {
 		uint32_t reg0;
diff --git a/src/soc/intel/common/block/xhci/elog.c b/src/soc/intel/common/block/xhci/elog.c
index e6a1c0f5daf3..8acefba40ca7 100644
--- a/src/soc/intel/common/block/xhci/elog.c
+++ b/src/soc/intel/common/block/xhci/elog.c
@@ -2,45 +2,12 @@
 
 #include <device/mmio.h>
 #include <device/pci_ops.h>
+#include <device/xhci.h>
 #include <elog.h>
 #include <intelblocks/xhci.h>
 #include <soc/pci_devs.h>
 #include <stdint.h>
 
-/* Wake on disconnect enable */
-#define XHCI_STATUS_WDE			(1 << 26)
-/* Wake on connect enable */
-#define XHCI_STATUS_WCE			(1 << 25)
-/* Port link status change */
-#define XHCI_STATUS_PLC			(1 << 22)
-/* Connect status change */
-#define XHCI_STATUS_CSC			(1 << 17)
-/* Port link status */
-#define XHCI_STATUS_PLS_SHIFT		(5)
-#define XHCI_STATUS_PLS_MASK		(0xF << XHCI_STATUS_PLS_SHIFT)
-#define XHCI_STATUS_PLS_RESUME		(15 << XHCI_STATUS_PLS_SHIFT)
-
-static bool xhci_csc_set(uint32_t port_status)
-{
-	return !!(port_status & XHCI_STATUS_CSC);
-}
-
-static bool xhci_wake_capable(uint32_t port_status)
-{
-	return !!((port_status & XHCI_STATUS_WCE) |
-		  (port_status & XHCI_STATUS_WDE));
-}
-
-static bool xhci_plc_set(uint32_t port_status)
-{
-	return !!(port_status & XHCI_STATUS_PLC);
-}
-
-static bool xhci_resume(uint32_t port_status)
-{
-	return (port_status & XHCI_STATUS_PLS_MASK) == XHCI_STATUS_PLS_RESUME;
-}
-
 /*
  * Check if a particular USB port caused wake by:
  * 1. Change in connect/disconnect status (if enabled)
@@ -73,8 +40,8 @@ static bool xhci_port_wake_check(uintptr_t base, uint8_t num, uint8_t host_event
 		 * connect/disconnect to identify if the port caused wake
 		 * event for USB attach/detach.
 		 */
-		if (xhci_csc_set(port_status) &&
-		    xhci_wake_capable(port_status)) {
+		if (xhci_portsc_csc(port_status) &&
+		    xhci_portsc_wake_capable(port_status)) {
 			elog_add_event_wake(host_event, 0);
 			elog_add_event_wake(event, i + 1);
 			found = true;
@@ -85,8 +52,8 @@ static bool xhci_port_wake_check(uintptr_t base, uint8_t num, uint8_t host_event
 		 * Check if PLC is set and PLS indicates resume to identify if
 		 * the port caused wake event for USB activity.
 		 */
-		if (xhci_plc_set(port_status) &&
-		    xhci_resume(port_status)) {
+		if (xhci_portsc_plc(port_status) &&
+		    xhci_portsc_resume(port_status)) {
 			elog_add_event_wake(host_event, 0);
 			elog_add_event_wake(event, i + 1);
 			found = true;