obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o
obj-$(CONFIG_CROS_EC_UART) += cros_ec_uart.o
cros_ec_lpcs-objs := cros_ec_lpc.o cros_ec_lpc_mec.o
-cros-ec-typec-objs := cros_ec_typec.o
+cros-ec-typec-objs := cros_ec_typec.o cros_typec_vdm.o
obj-$(CONFIG_CROS_EC_TYPEC) += cros-ec-typec.o
obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpcs.o
obj-$(CONFIG_CROS_EC_PROTO) += cros_ec_proto.o cros_ec_trace.o
#include <linux/usb/typec_tbt.h>
#include "cros_ec_typec.h"
+#include "cros_typec_vdm.h"
#define DRV_NAME "cros-ec-typec"
return PTR_ERR(amode);
port->port_altmode[CROS_EC_ALTMODE_DP] = amode;
typec_altmode_set_drvdata(amode, port);
+ amode->ops = &port_amode_ops;
/*
* Register TBT compatibility alt mode. The EC will not enter the mode
return PTR_ERR(amode);
port->port_altmode[CROS_EC_ALTMODE_TBT] = amode;
typec_altmode_set_drvdata(amode, port);
+ amode->ops = &port_amode_ops;
port->state.alt = NULL;
port->state.mode = TYPEC_STATE_USB;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * USB Power Delivery Vendor Defined Message (VDM) support code.
+ *
+ * Copyright 2023 Google LLC
+ * Author: Prashant Malani <pmalani@chromium.org>
+ */
+
+#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/usb/pd_vdo.h>
+
+#include "cros_ec_typec.h"
+#include "cros_typec_vdm.h"
+
+static int cros_typec_port_amode_enter(struct typec_altmode *amode, u32 *vdo)
+{
+ struct cros_typec_port *port = typec_altmode_get_drvdata(amode);
+ struct ec_params_typec_control req = {
+ .port = port->port_num,
+ .command = TYPEC_CONTROL_COMMAND_SEND_VDM_REQ,
+ };
+ struct typec_vdm_req vdm_req = {};
+ u32 hdr;
+
+ hdr = VDO(amode->svid, 1, SVDM_VER_2_0, CMD_ENTER_MODE);
+ hdr |= VDO_OPOS(amode->mode);
+
+ vdm_req.vdm_data[0] = hdr;
+ vdm_req.vdm_data_objects = 1;
+ vdm_req.partner_type = TYPEC_PARTNER_SOP;
+ req.vdm_req_params = vdm_req;
+
+ dev_dbg(port->typec_data->dev, "Sending EnterMode VDM, hdr: %x, port: %d\n",
+ hdr, port->port_num);
+
+ return cros_ec_cmd(port->typec_data->ec, 0, EC_CMD_TYPEC_CONTROL, &req,
+ sizeof(req), NULL, 0);
+}
+
+struct typec_altmode_ops port_amode_ops = {
+ .enter = cros_typec_port_amode_enter,
+};
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __CROS_TYPEC_VDM__
+#define __CROS_TYPEC_VDM__
+
+#include <linux/usb/typec_altmode.h>
+
+extern struct typec_altmode_ops port_amode_ops;
+
+#endif /* __CROS_TYPEC_VDM__ */