diff options
Diffstat (limited to 'board/puff/board.c')
| -rw-r--r-- | board/puff/board.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/board/puff/board.c b/board/puff/board.c index 7e27178469..4e78186b6c 100644 --- a/board/puff/board.c +++ b/board/puff/board.c @@ -55,6 +55,61 @@ static void tcpc_alert_event(enum gpio_signal signal) schedule_deferred_pd_interrupt(0); } +#include "port-sm.c" + +static bool usbc_overcurrent; +/* + * Update USB port power limits based on current state. + * + * Port power consumption is assumed to be negligible if not overcurrent, + * and we have two knobs: the front port power limit, and the USB-C power limit. + * Either one of the front ports may run at high power (one at a time) or we + * can limit both to low power. On USB-C we can similarly limit the port power, + * but there's only one port. + */ +void update_port_limits(void) +{ + struct port_states state = { + .bitfield = (!gpio_get_level(GPIO_USB_A0_OC_ODL) + << PORTMASK_FRONT_A0) | + (!gpio_get_level(GPIO_USB_A1_OC_ODL) + << PORTMASK_FRONT_A1) | + (!gpio_get_level(GPIO_USB_A2_OC_ODL) + << PORTMASK_REAR_A0) | + (!gpio_get_level(GPIO_USB_A3_OC_ODL) + << PORTMASK_REAR_A1) | + (!gpio_get_level(GPIO_USB_A4_OC_ODL) + << PORTMASK_REAR_A2) | + (!gpio_get_level(GPIO_HDMI_CONN0_OC_ODL) + << PORTMASK_HDMI0) | + (!gpio_get_level(GPIO_HDMI_CONN1_OC_ODL) + << PORTMASK_HDMI1) | + ((ppc_is_sourcing_vbus(0) && usbc_overcurrent) + << PORTMASK_TYPEC), + .front_a_limited = gpio_get_level(GPIO_USB_A_LOW_PWR_OD), + /* Assume high-power; there's no way to poll this. */ + /* + * TODO(b/143190102) add a way to poll port power limit so we + * can detect when it can be increased again if the port is + * already active. + */ + .c_low_power = 0, + }; + + update_port_state(&state); + + ppc_set_vbus_source_current_limit(0, + state.c_low_power ? TYPEC_RP_1A5 : TYPEC_RP_3A0); + /* Output high limits power */ + gpio_set_level(GPIO_USB_A_LOW_PWR_OD, state.front_a_limited); +} +DECLARE_DEFERRED(update_port_limits); + +static void port_ocp_interrupt(enum gpio_signal signal) +{ + hook_call_deferred(&update_port_limits_data, 0); +} + #include "gpio_list.h" /* Must come after other header files. */ /******************************************************************************/ @@ -227,6 +282,7 @@ const unsigned int ina3221_count = ARRAY_SIZE(ina3221); static void board_init(void) { + update_port_limits(); } DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); @@ -236,6 +292,11 @@ struct ppc_config_t ppc_chips[CONFIG_USB_PD_PORT_MAX_COUNT] = { }; unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips); +/* USB-A port control */ +const int usb_port_enable[USB_PORT_COUNT] = { + GPIO_EN_PP5000_USB_VBUS, +}; + /* Power Delivery and charging functions */ void baseboard_tcpc_init(void) { @@ -283,4 +344,5 @@ void board_overcurrent_event(int port, int is_overcurrented) /* Sanity check the port. */ if ((port < 0) || (port >= CONFIG_USB_PD_PORT_MAX_COUNT)) return; + usbc_overcurrent = is_overcurrented; } |