diff options
Diffstat (limited to 'baseboard/guybrush/baseboard.c')
| -rw-r--r-- | baseboard/guybrush/baseboard.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/baseboard/guybrush/baseboard.c b/baseboard/guybrush/baseboard.c index ef680a1603..12916ba4ef 100644 --- a/baseboard/guybrush/baseboard.c +++ b/baseboard/guybrush/baseboard.c @@ -381,6 +381,54 @@ BUILD_ASSERT(CONFIG_IO_EXPANDER_PORT_COUNT == USBC_PORT_COUNT); int board_set_active_charge_port(int port) { + int is_valid_port = (port >= 0 && + port < CONFIG_USB_PD_PORT_MAX_COUNT); + int i; + + if (port == CHARGE_PORT_NONE) { + CPRINTSUSB("Disabling all charger ports"); + + /* Disable all ports. */ + for (i = 0; i < ppc_cnt; i++) { + /* + * Do not return early if one fails otherwise we can + * get into a boot loop assertion failure. + */ + if (ppc_vbus_sink_enable(i, 0)) + CPRINTSUSB("Disabling C%d as sink failed.", i); + } + + return EC_SUCCESS; + } else if (!is_valid_port) { + return EC_ERROR_INVAL; + } + + + /* Check if the port is sourcing VBUS. */ + if (ppc_is_sourcing_vbus(port)) { + CPRINTFUSB("Skip enable C%d", port); + return EC_ERROR_INVAL; + } + + CPRINTSUSB("New charge port: C%d", port); + + /* + * Turn off the other ports' sink path FETs, before enabling the + * requested charge port. + */ + for (i = 0; i < ppc_cnt; i++) { + if (i == port) + continue; + + if (ppc_vbus_sink_enable(i, 0)) + CPRINTSUSB("C%d: sink path disable failed.", i); + } + + /* Enable requested charge port. */ + if (ppc_vbus_sink_enable(port, 1)) { + CPRINTSUSB("C%d: sink path enable failed.", port); + return EC_ERROR_UNKNOWN; + } return EC_SUCCESS; } |