honeybuns: Enable usbc support

This CL adds boards specific parts required to enable TCPMv2.0 for
both quiche and gingerbread. TCPMv2 configs are included, though, only
type-c support is being selected.

The reason for this intermediate point is an attempt to have more
manageable amounts of changes for CL reviews.

BUG=b:167601672
BRANCH=None
TEST=verfied type-c attaches properly on quiche

Signed-off-by: Scott Collyer <scollyer@google.com>
Change-Id: I2a4c3bf4089fb3e167d06921b177d8c4e61a021f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2215424
Tested-by: Scott Collyer <scollyer@chromium.org>
Commit-Queue: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Auto-Submit: Scott Collyer <scollyer@chromium.org>

3 files changed, 123 insertions, 1 deletions

diff --git a/baseboard/honeybuns/baseboard.h b/baseboard/honeybuns/baseboard.h
index 4e2af658c5..a5c64b7402 100644
--- a/baseboard/honeybuns/baseboard.h
+++ b/baseboard/honeybuns/baseboard.h
@@ -42,6 +42,47 @@
 
 
 /* USB Type C and USB PD defines */
+#define CONFIG_USB_POWER_DELIVERY
+#define CONFIG_USB_PD_TCPMV2
+#define CONFIG_USB_DRP_ACC_TRYSRC
+/* No AP on any honeybuns variants */
+#undef CONFIG_USB_PD_HOST_CMD
+
+/* TODO(b/167711550): Temporarily support type-c mode only */
+#undef CONFIG_USB_PRL_SM
+#undef CONFIG_USB_PE_SM
+
+#define CONFIG_USB_PD_DUAL_ROLE
+#define CONFIG_USB_PD_PORT_MAX_COUNT 1
+#define CONFIG_USB_PD_TCPM_MUX
+#define CONFIG_USB_PD_TCPM_STM32GX
+#define CONFIG_USB_PD_TCPM_TCPCI
+#define CONFIG_USB_PD_DECODE_SOP
+#define CONFIG_USB_PID 0x5048
+
+#define CONFIG_USB_PD_VBUS_DETECT_PPC
+#define CONFIG_USB_PD_DISCHARGE_PPC
+#define CONFIG_USBC_PPC_SN5S330
+#define CONFIG_USBC_PPC_VCONN
+#define CONFIG_USBC_PPC_DEDICATED_INT
+#define CONFIG_CMD_PPC_DUMP
+
+/* TODO(b/167711550): Temporary, will be replaced by correct mux config */
+#define CONFIG_USBC_SS_MUX
+#define CONFIG_USB_MUX_VIRTUAL
+
+
+/* Define typical operating power and max power. */
+#define PD_MAX_VOLTAGE_MV     20000
+#define PD_MAX_CURRENT_MA     3000
+#define PD_MAX_POWER_MW       45000
+#define PD_OPERATING_POWER_MW 15000
+
+/* TODO(b:147314141): Verify these timings */
+#define PD_POWER_SUPPLY_TURN_ON_DELAY	30000	/* us */
+#define PD_POWER_SUPPLY_TURN_OFF_DELAY	250000	/* us */
+#define PD_VCONN_SWAP_DELAY		5000	/* us */
+
 
 /* BC 1.2 */
 
@@ -52,7 +93,6 @@
 #define I2C_PORT_MST		1
 #define I2C_PORT_EEPROM	2
 
-
 /*
  * Macros for GPIO signals used in common code that don't match the
  * schematic names. Signal names in gpio.inc match the schematic and are
@@ -73,6 +113,14 @@ struct power_seq {
 	unsigned int delay_ms;   /* delay (in msec) after setting gpio_signal */
 };
 
+/*
+ * This is required as adc_channel is included in adc.h which ends up being
+ * included when TCPMv2 functions are included
+ */
+enum adc_channel {
+	ADC_CH_COUNT
+};
+
 extern const struct power_seq board_power_seq[];
 extern const size_t board_power_seq_count;
 
diff --git a/baseboard/honeybuns/build.mk b/baseboard/honeybuns/build.mk
index 2a572df114..ca13fcff46 100644
--- a/baseboard/honeybuns/build.mk
+++ b/baseboard/honeybuns/build.mk
@@ -7,3 +7,4 @@
 #
 
 baseboard-y=baseboard.o
+baseboard-$(CONFIG_USB_POWER_DELIVERY)+=usb_pd_policy.o
diff --git a/baseboard/honeybuns/usb_pd_policy.c b/baseboard/honeybuns/usb_pd_policy.c
new file mode 100644
index 0000000000..0bf90995de
--- /dev/null
+++ b/baseboard/honeybuns/usb_pd_policy.c
@@ -0,0 +1,73 @@
+/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "common.h"
+#include "console.h"
+#include "driver/tcpm/tcpci.h"
+#include "usb_pd.h"
+#include "usbc_ppc.h"
+
+#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
+#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
+
+/*
+ * TODO(b/167711550): These 4 functions need to be implemented for honeybuns
+ * and are required to build with TCPMv2 enabled. Currently, they only allow the
+ * build to work. They will be implemented in a subsequent CL.
+ */
+
+int pd_check_vconn_swap(int port)
+{
+	/*TODO: Dock is the Vconn source */
+	return 1;
+}
+
+void pd_power_supply_reset(int port)
+{
+	int prev_en;
+
+	if (port < 0 || port >= CONFIG_USB_PD_PORT_MAX_COUNT)
+		return;
+
+	prev_en = ppc_is_sourcing_vbus(port);
+
+	/* Disable VBUS. */
+	ppc_vbus_source_enable(port, 0);
+
+	/* Enable discharge if we were previously sourcing 5V */
+	if (prev_en)
+		pd_set_vbus_discharge(port, 1);
+}
+
+int pd_set_power_supply_ready(int port)
+{
+	int rv;
+
+	/*
+	 * Default operation of buck-boost is 5v/3.6A.
+	 * Turn on the PPC Provide Vbus.
+	 */
+	rv = ppc_vbus_source_enable(port, 1);
+	if (rv)
+		return rv;
+
+	return EC_SUCCESS;
+}
+
+int pd_snk_is_vbus_provided(int port)
+{
+	return ppc_is_vbus_present(port);
+}
+
+int board_vbus_source_enabled(int port)
+{
+	return ppc_is_sourcing_vbus(port);
+}
+
+void pd_set_input_current_limit(int port, uint32_t max_ma,
+				uint32_t supply_voltage)
+{
+
+}