81 lines
3.1 KiB
PHP
81 lines
3.1 KiB
PHP
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/* -*- mode:c -*-
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*
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* Copyright 2019 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Declare symbolic names for all the GPIOs that we care about.
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* Note: Those with interrupt handlers must be declared first. */
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/* Divided Vconn voltage sense */
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GPIO(VCONN_VSENSE, PIN(A, 0), GPIO_ANALOG)
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/* CC ADC, PD in comparator, or tx enable out (low) */
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GPIO(CC_VPDMCU, PIN(A, 1), GPIO_ANALOG)
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/* CC 0.2V comparator during charge-through, active Rd (low) or Rp3A0 (high) */
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GPIO(CC_RP3A0_RD_L, PIN(A, 2), GPIO_ANALOG)
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/* 0.2V resistor divider for various CC comapators */
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GPIO(RDCONNECT_REF, PIN(A, 3), GPIO_ANALOG)
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/* Charger CC1 0.2V comparator and ADC, drive a Rp3A0 (high) or Rd (low) */
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GPIO(CC1_RP3A0_RD_L, PIN(A, 4), GPIO_ANALOG)
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/* Charger CC2 0.2V comparator and ADC, drive a Rp3A0 (high) or Rd (low) */
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GPIO(CC2_RP3A0_RD_L, PIN(A, 5), GPIO_ANALOG)
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/* Divided host VBUS voltage sense */
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GPIO(HOST_VBUS_VSENSE, PIN(A, 6), GPIO_ANALOG)
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/* Divided charger VBUS voltage sense */
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GPIO(CHARGER_VBUS_VSENSE, PIN(A, 7), GPIO_ANALOG)
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/* Charger CC1 ADC, or drive a RpUSB (high) */
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GPIO(CC1_RPUSB_ODH, PIN(B, 0), GPIO_ANALOG)
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/* Charger CC2 ADC, or drive a RpUSB (high) */
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GPIO(CC2_RPUSB_ODH, PIN(B, 1), GPIO_ANALOG)
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/* PD TX data output */
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GPIO(CC_TX_DATA, PIN(B, 4), GPIO_INPUT)
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/* Enables the VBUS pass-through (high) */
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GPIO(VBUS_PASS_EN, PIN(B, 2), GPIO_OUT_LOW)
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/*
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* Desired billboard state. One of "no billboard/nothing connected" (low),
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* "source connected but not in charge-through" (pull-up), or "sink connected"
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* (high)
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*/
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GPIO(PRESENT_BILLBOARD, PIN(A, 8), GPIO_OUT_LOW)
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/* Enables cReceiver and the path to the PD RX/TX, RpUSB, and Rp1A5 */
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GPIO(VPDMCU_CC_EN, PIN(A, 11), GPIO_OUT_LOW)
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/* Disables dead battery Rd on host side (low) */
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GPIO(CC_DB_EN_OD, PIN(A, 12), GPIO_ODR_HIGH)
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/* RpUSB on host side (high) */
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GPIO(CC_RPUSB_ODH, PIN(A, 13), GPIO_INPUT)
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/*
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* Controls the dead-battery pull-downs on charger side; either dead battery
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* Rd (low) or Hi-Z (high)
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*/
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GPIO(CC1_CC2_DB_EN_L, PIN(A, 15), GPIO_OUT_LOW)
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/* Chooses between Vconn (low) and VBUS (high) */
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GPIO(VCONN_PWR_SEL_ODL, PIN(B, 6), GPIO_INPUT)
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/* Passes CC1 to the host CC (high) */
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GPIO(CC1_SEL, PIN(F, 0), GPIO_OUT_LOW)
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/* Passes CC2 to the host CC (high) */
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GPIO(CC2_SEL, PIN(F, 1), GPIO_OUT_LOW)
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/* Debug red LED driver (low). Keep off for power measurements */
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GPIO(DEBUG_LED_R_L, PIN(B, 5), GPIO_ODR_HIGH)
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/* Debug green LED driver (low). Keep off for power measurements */
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GPIO(DEBUG_LED_G_L, PIN(B, 7), GPIO_ODR_HIGH)
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UNIMPLEMENTED(WP_L)
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UNIMPLEMENTED(ENTERING_RW)
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/* SCK(PB3): PD_TX_CLK_IN - Clock input for PD TX */
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ALTERNATE(PIN_MASK(B, 0x0008), 0, MODULE_USB_PD, 0)
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/* TIM16_CH1(PB8): PD_TX_CLK_OUT - Clock generator for PD TX */
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ALTERNATE(PIN_MASK(B, 0x0100), 2, MODULE_USB_PD, 0)
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/* USART1 (PA9/PA10): TX/RX for debug and programming */
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ALTERNATE(PIN_MASK(A, 0x0600), 1, MODULE_UART, 0)
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