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/* Copyright 2018 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.
*/
/* Type-C port manager for TI TUSB422 Port Controller */
#include "common.h"
#include "tusb422.h"
#include "tcpci.h"
#include "tcpm.h"
#include "timer.h"
#include "usb_pd.h"
#ifndef CONFIG_USB_PD_TCPM_TCPCI
#error "TUSB422 is using a standard TCPCI interface"
#error "Please upgrade your board configuration"
#endif
#if defined(CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE) && \
!defined(CONFIG_USB_PD_TCPC_LOW_POWER)
#error "TUSB422 driver requires CONFIG_USB_PD_TCPC_LOW_POWER if"
#error "CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE is enabled"
#endif
static int tusb422_tcpci_tcpm_init(int port)
{
int rv = tcpci_tcpm_init(port);
if (rv)
return rv;
if (IS_ENABLED(CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE)) {
/*
* When dual role auto toggle is enabled, the TUSB422 needs
* auto discharge disconnect enabled so that the CC state
* is detected correctly.
* Without this, the CC lines get stuck in the SRC.Open state
* after updating the ROLE Control register on a device connect.
*/
tusb422_tcpm_drv.tcpc_enable_auto_discharge_disconnect(port, 1);
}
/*
* VBUS detection is supposed to be enabled by default, however the
* TUSB422 has this disabled following reset.
*/
/* Enable VBUS detection */
return tcpc_write16(port, TCPC_REG_COMMAND, 0x33);
}
const struct tcpm_drv tusb422_tcpm_drv = {
.init = &tusb422_tcpci_tcpm_init,
.release = &tcpci_tcpm_release,
.get_cc = &tcpci_tcpm_get_cc,
#ifdef CONFIG_USB_PD_VBUS_DETECT_TCPC
.check_vbus_level = &tcpci_tcpm_check_vbus_level,
#endif
.select_rp_value = &tcpci_tcpm_select_rp_value,
.set_cc = &tcpci_tcpm_set_cc,
.set_polarity = &tcpci_tcpm_set_polarity,
.set_vconn = &tcpci_tcpm_set_vconn,
.set_msg_header = &tcpci_tcpm_set_msg_header,
.set_rx_enable = &tcpci_tcpm_set_rx_enable,
.get_message_raw = &tcpci_tcpm_get_message_raw,
.transmit = &tcpci_tcpm_transmit,
.tcpc_alert = &tcpci_tcpc_alert,
#ifdef CONFIG_USB_PD_DISCHARGE_TCPC
.tcpc_discharge_vbus = &tcpci_tcpc_discharge_vbus,
#endif
.tcpc_enable_auto_discharge_disconnect =
&tcpci_tcpc_enable_auto_discharge_disconnect,
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
.drp_toggle = &tcpci_tcpc_drp_toggle,
#endif
#ifdef CONFIG_USBC_PPC
.set_snk_ctrl = &tcpci_tcpm_set_snk_ctrl,
.set_src_ctrl = &tcpci_tcpm_set_src_ctrl,
#endif
.get_chip_info = &tcpci_get_chip_info,
#ifdef CONFIG_USB_PD_TCPC_LOW_POWER
.enter_low_power_mode = &tcpci_enter_low_power_mode,
#endif
};
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