1 files changed, 86 insertions, 0 deletions
diff --git a/baseboard/volteer/charger.c b/baseboard/volteer/charger.c
index aced8fc67b..a674b98f41 100644
--- a/baseboard/volteer/charger.c
+++ b/baseboard/volteer/charger.c
@@ -6,7 +6,18 @@
 /* Volteer family-specific configuration */
 #include "common.h"
 #include "charger.h"
+#include "charge_manager.h"
+#include "charge_state.h"
 #include "driver/charger/isl9241_public.h"
+#include "gpio.h"
+#ifdef CONFIG_ZEPHYR
+#include "usbc_config.h"
+#endif
+#include "usbc_ppc.h"
+#include "util.h"
+
+#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
+#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)
 
 /* Charger Chip Configuration */
 const struct charger_config_t chg_chips[] = {
@@ -16,3 +27,78 @@ const struct charger_config_t chg_chips[] = {
 		.drv = &isl9241_drv,
 	},
 };
+
+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;
+}
+
+__overridable void board_set_charge_limit(int port, int supplier, int charge_ma,
+			    int max_ma, int charge_mv)
+{
+	charge_set_input_current_limit(MAX(charge_ma,
+					CONFIG_CHARGER_INPUT_CURRENT),
+					charge_mv);
+}
+
+void board_overcurrent_event(int port, int is_overcurrented)
+{
+	/* Note that the level is inverted because the pin is active low. */
+	switch (port) {
+	case USBC_PORT_C0:
+		gpio_set_level(GPIO_USB_C0_OC_ODL, !is_overcurrented);
+		break;
+	case USBC_PORT_C1:
+		gpio_set_level(GPIO_USB_C1_OC_ODL, !is_overcurrented);
+		break;
+	}
+}