1 files changed, 141 insertions, 0 deletions
diff --git a/zephyr/projects/corsola/src/krabby/usbc_config.c b/zephyr/projects/corsola/src/krabby/usbc_config.c
new file mode 100644
index 0000000000..7a7f710804
--- /dev/null
+++ b/zephyr/projects/corsola/src/krabby/usbc_config.c
@@ -0,0 +1,141 @@
+/* Copyright 2021 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Krabby board-specific USB-C configuration */
+
+#include "adc.h"
+#include "baseboard_usbc_config.h"
+#include "charge_manager.h"
+#include "console.h"
+#include "driver/tcpm/it83xx_pd.h"
+#include "driver/usb_mux/tusb1064.h"
+#include "i2c.h"
+#include "usb_pd.h"
+#include "usbc_ppc.h"
+
+#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ##args)
+#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ##args)
+#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ##args)
+
+int tusb1064_mux_1_board_init(const struct usb_mux *me)
+{
+	int rv;
+
+	rv = i2c_write8(me->i2c_port, me->i2c_addr_flags,
+			TUSB1064_REG_DP1DP3EQ_SEL,
+			TUSB1064_DP1EQ(TUSB1064_DP_EQ_RX_8_9_DB) |
+				TUSB1064_DP3EQ(TUSB1064_DP_EQ_RX_5_4_DB));
+	if (rv)
+		return rv;
+
+	/* Enable EQ_OVERRIDE so the gain registers are used */
+	return i2c_update8(me->i2c_port, me->i2c_addr_flags,
+			   TUSB1064_REG_GENERAL, REG_GENERAL_EQ_OVERRIDE,
+			   MASK_SET);
+}
+
+#ifdef CONFIG_USB_PD_TCPM_ITE_ON_CHIP
+const struct cc_para_t *board_get_cc_tuning_parameter(enum usbpd_port port)
+{
+	const static struct cc_para_t
+		cc_parameter[CONFIG_USB_PD_ITE_ACTIVE_PORT_COUNT] = {
+			{
+				.rising_time =
+					IT83XX_TX_PRE_DRIVING_TIME_1_UNIT,
+				.falling_time =
+					IT83XX_TX_PRE_DRIVING_TIME_2_UNIT,
+			},
+			{
+				.rising_time =
+					IT83XX_TX_PRE_DRIVING_TIME_1_UNIT,
+				.falling_time =
+					IT83XX_TX_PRE_DRIVING_TIME_2_UNIT,
+			},
+		};
+
+	return &cc_parameter[port];
+}
+#endif
+
+void board_reset_pd_mcu(void)
+{
+	/*
+	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
+	 * chip code (it83xx/intc.c)
+	 */
+}
+
+#ifndef CONFIG_TEST
+int board_set_active_charge_port(int port)
+{
+	int i;
+	int is_valid_port = (port >= 0 && port < board_get_usb_pd_port_count());
+
+	if (!is_valid_port && port != CHARGE_PORT_NONE) {
+		return EC_ERROR_INVAL;
+	}
+
+	if (port == CHARGE_PORT_NONE) {
+		CPRINTS("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)) {
+				CPRINTS("Disabling C%d as sink failed.", i);
+			}
+		}
+
+		return EC_SUCCESS;
+	}
+
+	/* Check if the port is sourcing VBUS. */
+	if (ppc_is_sourcing_vbus(port)) {
+		CPRINTS("Skip enable C%d", port);
+		return EC_ERROR_INVAL;
+	}
+
+	CPRINTS("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)) {
+			CPRINTS("C%d: sink path disable failed.", i);
+		}
+	}
+
+	/* Enable requested charge port. */
+	if (ppc_vbus_sink_enable(port, 1)) {
+		CPRINTS("C%d: sink path enable failed.", port);
+		return EC_ERROR_UNKNOWN;
+	}
+
+	return EC_SUCCESS;
+}
+#endif
+
+#ifdef CONFIG_USB_PD_VBUS_MEASURE_ADC_EACH_PORT
+enum adc_channel board_get_vbus_adc(int port)
+{
+	if (port == 0) {
+		return ADC_VBUS_C0;
+	}
+	if (port == 1) {
+		return ADC_VBUS_C1;
+	}
+	CPRINTSUSB("Unknown vbus adc port id: %d", port);
+	return ADC_VBUS_C0;
+}
+#endif /* CONFIG_USB_PD_VBUS_MEASURE_ADC_EACH_PORT */