diff options
| author | Robert Zieba <robertzieba@google.com> | 2022-08-10 16:31:27 -0600 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-11-09 23:57:49 +0000 |
| commit | 44281956928348bb5df14a8257921c49991dace5 (patch) | |
| tree | 0b213a12e21276a70159f0614b38f36987903d22 /src/include | |
| parent | 065c5870e4678367f5be7014361772c9d03933c8 (diff) | |
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>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/device/xhci.h | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/src/include/device/xhci.h b/src/include/device/xhci.h index 17ce846459..e5ce8b514c 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; |