1 files changed, 99 insertions, 0 deletions
diff --git a/include/usb/tcpm.h b/include/usb/tcpm.h
new file mode 100644
index 00000000000..10f0515fe12
--- /dev/null
+++ b/include/usb/tcpm.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015-2017 Google, Inc
+ * Copyright 2024 Collabora
+ */
+
+#ifndef __LINUX_USB_TCPM_H
+#define __LINUX_USB_TCPM_H
+
+#include <dm/of.h>
+#include <linux/bitops.h>
+#include "pd.h"
+
+enum typec_orientation {
+	TYPEC_ORIENTATION_NONE,
+	TYPEC_ORIENTATION_NORMAL,
+	TYPEC_ORIENTATION_REVERSE,
+};
+
+enum typec_cc_status {
+	TYPEC_CC_OPEN,
+	TYPEC_CC_RA,
+	TYPEC_CC_RD,
+	TYPEC_CC_RP_DEF,
+	TYPEC_CC_RP_1_5,
+	TYPEC_CC_RP_3_0,
+};
+
+enum typec_cc_polarity {
+	TYPEC_POLARITY_CC1,
+	TYPEC_POLARITY_CC2,
+};
+
+enum tcpm_transmit_status {
+	TCPC_TX_SUCCESS = 0,
+	TCPC_TX_DISCARDED = 1,
+	TCPC_TX_FAILED = 2,
+};
+
+enum tcpm_transmit_type {
+	TCPC_TX_SOP = 0,
+	TCPC_TX_SOP_PRIME = 1,
+	TCPC_TX_SOP_PRIME_PRIME = 2,
+	TCPC_TX_SOP_DEBUG_PRIME = 3,
+	TCPC_TX_SOP_DEBUG_PRIME_PRIME = 4,
+	TCPC_TX_HARD_RESET = 5,
+	TCPC_TX_CABLE_RESET = 6,
+	TCPC_TX_BIST_MODE_2 = 7
+};
+
+struct dm_tcpm_ops {
+	int (*get_connector_node)(struct udevice *dev, ofnode *connector_node);
+	int (*init)(struct udevice *dev);
+	int (*get_vbus)(struct udevice *dev);
+	int (*set_cc)(struct udevice *dev, enum typec_cc_status cc);
+	int (*get_cc)(struct udevice *dev, enum typec_cc_status *cc1,
+		      enum typec_cc_status *cc2);
+	int (*set_polarity)(struct udevice *dev,
+			    enum typec_cc_polarity polarity);
+	int (*set_vconn)(struct udevice *dev, bool on);
+	int (*set_vbus)(struct udevice *dev, bool on, bool charge);
+	int (*set_pd_rx)(struct udevice *dev, bool on);
+	int (*set_roles)(struct udevice *dev, bool attached,
+			 enum typec_role role, enum typec_data_role data);
+	int (*start_toggling)(struct udevice *dev,
+			      enum typec_port_type port_type,
+			      enum typec_cc_status cc);
+	int (*pd_transmit)(struct udevice *dev, enum tcpm_transmit_type type,
+			   const struct pd_message *msg, unsigned int negotiated_rev);
+	void (*poll_event)(struct udevice *dev);
+	int (*enter_low_power_mode)(struct udevice *dev, bool attached, bool pd_capable);
+};
+
+/* API for drivers */
+void tcpm_vbus_change(struct udevice *dev);
+void tcpm_cc_change(struct udevice *dev);
+void tcpm_pd_receive(struct udevice *dev, const struct pd_message *msg);
+void tcpm_pd_transmit_complete(struct udevice *dev,
+			       enum tcpm_transmit_status status);
+void tcpm_pd_hard_reset(struct udevice *dev);
+
+/* API for boards */
+extern const char * const typec_pd_rev_name[];
+extern const char * const typec_orientation_name[];
+extern const char * const typec_role_name[];
+extern const char * const typec_data_role_name[];
+extern const char * const typec_cc_status_name[];
+
+int tcpm_get(int index, struct udevice **devp);
+int tcpm_get_pd_rev(struct udevice *dev);
+int tcpm_get_current(struct udevice *dev);
+int tcpm_get_voltage(struct udevice *dev);
+enum typec_orientation tcpm_get_orientation(struct udevice *dev);
+enum typec_role tcpm_get_pwr_role(struct udevice *dev);
+enum typec_data_role tcpm_get_data_role(struct udevice *dev);
+bool tcpm_is_connected(struct udevice *dev);
+const char *tcpm_get_state(struct udevice *dev);
+
+#endif /* __LINUX_USB_TCPM_H */