diff options
Diffstat (limited to 'common/usbc/usb_pe_drp_sm.c')
| -rw-r--r-- | common/usbc/usb_pe_drp_sm.c | 58 |
1 files changed, 36 insertions, 22 deletions
diff --git a/common/usbc/usb_pe_drp_sm.c b/common/usbc/usb_pe_drp_sm.c index 6bf72d3bff..7390a5e78b 100644 --- a/common/usbc/usb_pe_drp_sm.c +++ b/common/usbc/usb_pe_drp_sm.c @@ -55,36 +55,50 @@ /* At least one successful PD communication packet received from port partner */ #define PE_FLAGS_PD_CONNECTION BIT(0) -#define PE_FLAGS_ACCEPT BIT(1) /* Got accept message */ -#define PE_FLAGS_PS_READY BIT(2) /* Power Supply Ready */ -#define PE_FLAGS_PROTOCOL_ERROR BIT(3) /* Received Protocol Err */ -#define PE_FLAGS_MODAL_OPERATION BIT(4) /* Modal operation set */ -#define PE_FLAGS_TX_COMPLETE BIT(5) /* Transmit complete */ -#define PE_FLAGS_MSG_RECEIVED BIT(6) /* Message Received */ -#define PE_FLAGS_HARD_RESET_PENDING BIT(7) /* Hard reset pending */ -#define PE_FLAGS_WAIT BIT(8) /* Wait before msg resend */ -#define PE_FLAGS_EXPLICIT_CONTRACT BIT(9) /* PD contract in place */ -#define PE_FLAGS_SNK_WAIT_CAP_TIMEOUT BIT(10)/* Snk caps timeout */ -/* Power Supply transition timeout */ +/* Accept message received from port partner */ +#define PE_FLAGS_ACCEPT BIT(1) +/* Power Supply Ready message received from port partner */ +#define PE_FLAGS_PS_READY BIT(2) +/* Protocol Error was determined based on error recovery current state */ +#define PE_FLAGS_PROTOCOL_ERROR BIT(3) +/* Set if we are in Modal Operation */ +#define PE_FLAGS_MODAL_OPERATION BIT(4) +/* A message we requested to be sent has been transmitted */ +#define PE_FLAGS_TX_COMPLETE BIT(5) +/* A message sent by a port partner has been received */ +#define PE_FLAGS_MSG_RECEIVED BIT(6) +/* A hard reset has been requested but has not been sent, not currently used */ +#define PE_FLAGS_HARD_RESET_PENDING BIT(7) +/* Port partner sent a Wait message. Wait before we resend our message */ +#define PE_FLAGS_WAIT BIT(8) +/* An explicit contract is in place with our port partner */ +#define PE_FLAGS_EXPLICIT_CONTRACT BIT(9) +/* Waiting for Sink Capabailities timed out. Used for retry error handling */ +#define PE_FLAGS_SNK_WAIT_CAP_TIMEOUT BIT(10) +/* Power Supply voltage/current transition timed out */ #define PE_FLAGS_PS_TRANSITION_TIMEOUT BIT(11) -/* Interruptible Atomic Message Sequence */ +/* Flag to note current Atomic Message Sequence is interruptible */ #define PE_FLAGS_INTERRUPTIBLE_AMS BIT(12) -/* Power Supply reset complete */ +/* Flag to note Power Supply reset has completed */ #define PE_FLAGS_PS_RESET_COMPLETE BIT(13) -/* When set, triggers a Structured Vendor Defined Message transmission */ +/* Flag to note a Structured Vendor Defined Message should be sent */ #define PE_FLAGS_SEND_SVDM BIT(14) -#define PE_FLAGS_VCONN_SWAP_COMPLETE BIT(15)/* VCONN Swap complete */ -/* When set, no more discover identity messages are sent to the port partner */ +/* VCONN swap operation has completed */ +#define PE_FLAGS_VCONN_SWAP_COMPLETE BIT(15) +/* Flag to note no more discover identity messages should be sent */ #define PE_FLAGS_DISCOVER_PORT_IDENTITY_DONE BIT(16) -/* Starts the Swap Source Start timer when set */ +/* Flag to note Swap Source Start timer should be set at PE_SRC_Startup entry */ #define PE_FLAGS_RUN_SOURCE_START_TIMER BIT(17) -/* Set during the port discovery if the port partner replied with busy */ +/* Flag to note Port Discovery port partner replied with BUSY */ #define PE_FLAGS_VDM_REQUEST_BUSY BIT(18) -/* Set during the port discovery if the port partner replied with nak */ +/* Flag to note Port Discovery port partner replied with NAK */ #define PE_FLAGS_VDM_REQUEST_NAKED BIT(19) -#define PE_FLAGS_FAST_ROLE_SWAP_PATH BIT(20)/* FRS/PRS Exec Path */ -#define PE_FLAGS_FAST_ROLE_SWAP_ENABLED BIT(21)/* FRS Listening State */ -#define PE_FLAGS_FAST_ROLE_SWAP_SIGNALED BIT(22)/* FRS PPC/TCPC Signal */ +/* Flag to note FRS/PRS context in shared state machine path */ +#define PE_FLAGS_FAST_ROLE_SWAP_PATH BIT(20) +/* Flag to note if FRS listening is enabled */ +#define PE_FLAGS_FAST_ROLE_SWAP_ENABLED BIT(21) +/* Flag to note TCPC passed on FRS signal from port partner */ +#define PE_FLAGS_FAST_ROLE_SWAP_SIGNALED BIT(22) /* 6.7.3 Hard Reset Counter */ #define N_HARD_RESET_COUNT 2 |