driver: implement rt1739 ppc/bc12 driver

Implement basic ppc/bc1.2 functions for Richtek rt1739 ppc.

BUG=b:200107774
TEST=manually verified source/sink/vconn functions
BRANCH=main

Signed-off-by: Ting Shen <phoenixshen@google.com>
Change-Id: Id500979262cea9fab7b38dfaff9339762896d0ef
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3263230
Reviewed-by: Eric Yilun Lin <yllin@google.com>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>

1 files changed, 116 insertions, 0 deletions

diff --git a/driver/ppc/rt1739.h b/driver/ppc/rt1739.h
new file mode 100644
index 0000000000..43cc04f366
--- /dev/null
+++ b/driver/ppc/rt1739.h
@@ -0,0 +1,116 @@
+/* Copyright 2022 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.
+ */
+
+/* Richtek RT1739 Type-C Power Path Controller */
+
+#ifndef __CROS_EC_PPC_RT1739_H
+#define __CROS_EC_PPC_RT1739_H
+
+#include "usb_charge.h"
+#include "usbc_ppc.h"
+
+#define RT1739_ADDR1 0x70
+#define RT1739_ADDR2 0x71
+#define RT1739_ADDR3 0x72
+#define RT1739_ADDR4 0x73
+
+#define RT1739_REG_DEVICE_ID0		0x02
+#define RT1739_DEVICE_ID_ES1			0x11
+#define RT1739_DEVICE_ID_ES2			0x12
+
+#define RT1739_REG_SW_RESET		0x04
+#define RT1739_SW_RESET				BIT(0)
+
+#define RT1739_REG_INT_MASK5		0x0D
+#define RT1739_BC12_SNK_DONE_MASK		BIT(0)
+
+#define RT1739_REG_INT_EVENT5		0x15
+#define RT1739_BC12_SNK_DONE_INT		BIT(0)
+
+#define RT1739_REG_INT_STS4		0x1C
+#define RT1739_VBUS_VALID			BIT(2)
+#define RT1739_VBUS_PRESENT			BIT(0)
+
+#define RT1739_REG_SYS_CTRL		0x20
+#define RT1739_OT_EN				BIT(4)
+#define RT1739_SHUTDOWN_OFF			BIT(0)
+
+#define RT1739_REG_VBUS_SWITCH_CTRL	0x21
+#define RT1739_LV_SRC_EN			BIT(2)
+#define RT1739_HV_SRC_EN			BIT(1)
+#define RT1739_HV_SNK_EN			BIT(0)
+
+#define RT1739_REG_VBUS_OV_SETTING	0x24
+
+#define RT1739_VBUS_OVP_SEL_SHIFT		0
+#define RT1739_VIN_HV_OVP_SEL_SHIFT		4
+#define RT1739_OVP_SEL_6_0V			0
+#define RT1739_OVP_SEL_6_8V			1
+#define RT1739_OVP_SEL_10_0V			2
+#define RT1739_OVP_SEL_11_5V			3
+#define RT1739_OVP_SEL_14_0V			4
+#define RT1739_OVP_SEL_17_0V			5
+#define RT1739_OVP_SEL_23_0V			6
+
+#define RT1739_REG_VBUS_OC_SETTING	0x25
+
+#define RT1739_LV_SRC_OCP_SEL_SHIFT		4
+#define RT1739_LV_SRC_OCP_SEL_1_25A		0
+#define RT1739_LV_SRC_OCP_SEL_1_75A		1
+#define RT1739_LV_SRC_OCP_SEL_2_25A		2
+#define RT1739_LV_SRC_OCP_SEL_3_3A		3
+
+#define RT1739_HV_SINK_OCP_SEL_SHIFT		0
+#define RT1739_HV_SINK_OCP_SEL_1_25A		0
+#define RT1739_HV_SINK_OCP_SEL_1_75A		1
+#define RT1739_HV_SINK_OCP_SEL_3_3A		2
+
+#define RT1739_VBUS_DAULT_DIS		0x26
+#define RT1739_OVP_DISVBUS_EN			BIT(6)
+#define RT1739_UVLO_DISVBUS_EN			BIT(5)
+#define RT1739_SRCP_DISVBUS_EN			BIT(4)
+#define RT1739_RCP_DISVBUS_EN			BIT(3)
+#define RT1739_SCP_DISVBUS_EN			BIT(2)
+#define RT1739_OCPS_DISVBUS_EN			BIT(1)
+#define RT1739_OCP_DISVBUS_EN			BIT(0)
+
+#define RT1739_REG_VBUS_DET_EN		0x27
+#define RT1739_VBUS_SAFE5V_EN			BIT(2)
+#define RT1739_VBUS_SAFE0V_EN			BIT(1)
+#define RT1739_VBUS_PRESENT_EN			BIT(0)
+
+#define RT1739_REG_VCONN_CTRL1		0x31
+#define RT1739_VCONN_ORIENT			BIT(1)
+#define RT1739_VCONN_EN				BIT(0)
+
+#define RT1739_VCONN_ORIENT_CC1			MASK_SET
+#define RT1739_VCONN_ORIENT_CC2			MASK_CLR
+
+#define RT1739_REG_VCONN_CTRL3		0x33
+#define RT1739_VCONN_CLIMIT_EN		BIT(0)
+
+#define RT1739_REG_SBU_CTRL_01		0x38
+#define RT1739_SBUSW_MUX_SEL		BIT(4)
+#define RT1739_DM_SWEN				BIT(1)
+#define RT1739_DP_SWEN				BIT(0)
+
+#define RT1739_REG_BC12_SNK_FUNC	0x40
+#define RT1739_BC12_SNK_EN			BIT(7)
+
+#define RT1739_REG_BC12_STAT		0x41
+#define RT1739_PORT_STAT_MASK			0x0F
+#define RT1739_PORT_STAT_SDP			0x0D
+#define RT1739_PORT_STAT_CDP			0x0E
+#define RT1739_PORT_STAT_DCP			0x0F
+
+#define RT1739_REG_SYS_CTRL1		0x60
+#define RT1739_OSC640K_FORCE_EN			BIT(3)
+
+extern const struct ppc_drv rt1739_ppc_drv;
+extern const struct bc12_drv rt1739_bc12_drv;
+
+void rt1739_interrupt(int port);
+
+#endif /* defined(__CROS_EC_PPC_RT1739_H) */