83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
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/* Copyright 2014 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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/* Twinkie dongle configuration */
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#include "adc.h"
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#include "adc_chip.h"
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#include "common.h"
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#include "console.h"
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#include "ec_version.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "i2c.h"
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#include "ina2xx.h"
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#include "registers.h"
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#include "task.h"
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#include "usb_descriptor.h"
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#include "util.h"
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void cc2_event(enum gpio_signal signal)
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{
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ccprintf("INA!\n");
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}
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void vbus_event(enum gpio_signal signal)
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{
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ccprintf("INA!\n");
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}
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#include "gpio_list.h"
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/* Initialize board. */
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void board_config_pre_init(void)
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{
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/* enable SYSCFG clock */
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STM32_RCC_APB2ENR |= BIT(0);
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/* Remap USART DMA to match the USART driver and TIM2 DMA */
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STM32_SYSCFG_CFGR1 |= BIT(9) | BIT(10) /* Remap USART1 RX/TX DMA */
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| BIT(29);/* Remap TIM2 DMA */
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/* 40 MHz pin speed on UART PA9/PA10 */
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STM32_GPIO_OSPEEDR(GPIO_A) |= 0x003C0000;
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/* 40 MHz pin speed on TX clock out PB9 */
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STM32_GPIO_OSPEEDR(GPIO_B) |= 0x000C0000;
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}
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static void board_init(void)
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{
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/* Enable interrupts for INAs. */
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gpio_enable_interrupt(GPIO_CC2_ALERT_L);
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gpio_enable_interrupt(GPIO_VBUS_ALERT_L);
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/* Calibrate INA0 (VBUS) with 1mA/LSB scale */
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ina2xx_init(0, 0x8000, INA2XX_CALIB_1MA(15 /*mOhm*/));
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/* Disable INA1 (VCONN2) to avoid leaking current */
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ina2xx_init(1, 0, INA2XX_CALIB_1MA(15 /*mOhm*/));
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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/* ADC channels */
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const struct adc_t adc_channels[] = {
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/* USB PD CC lines sensing. Converted to mV (3300mV/4096). */
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[ADC_CH_CC1_PD] = {"CC1_PD", 3300, 4096, 0, STM32_AIN(1)},
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[ADC_CH_CC2_PD] = {"CC2_PD", 3300, 4096, 0, STM32_AIN(3)},
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};
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BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
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/* I2C ports */
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const struct i2c_port_t i2c_ports[] = {
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{"master", I2C_PORT_MASTER, 100, GPIO_I2C_SCL, GPIO_I2C_SDA},
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};
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const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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const void * const usb_strings[] = {
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[USB_STR_DESC] = usb_string_desc,
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[USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."),
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[USB_STR_PRODUCT] = USB_STRING_DESC("Twinkie"),
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[USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32),
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[USB_STR_SNIFFER] = USB_STRING_DESC("USB-PD Sniffer"),
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[USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Shell"),
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};
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BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
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