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Diffstat (limited to 'board/lucid/usb_pd_config.h')
| -rw-r--r-- | board/lucid/usb_pd_config.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/board/lucid/usb_pd_config.h b/board/lucid/usb_pd_config.h deleted file mode 100644 index 50c42489af..0000000000 --- a/board/lucid/usb_pd_config.h +++ /dev/null @@ -1,162 +0,0 @@ -/* Copyright 2015 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. - */ - -#include "adc.h" -#include "gpio.h" -#include "registers.h" - -/* USB Power delivery board configuration */ - -#ifndef __CROS_EC_USB_PD_CONFIG_H -#define __CROS_EC_USB_PD_CONFIG_H - -/* Timer selection for baseband PD communication */ -#define TIM_CLOCK_PD_TX_C0 15 -#define TIM_CLOCK_PD_RX_C0 1 - -#define TIM_CLOCK_PD_TX(p) TIM_CLOCK_PD_TX_C0 -#define TIM_CLOCK_PD_RX(p) TIM_CLOCK_PD_RX_C0 - -/* Timer channel */ -#define TIM_RX_CCR_C0 1 -#define TIM_TX_CCR_C0 2 - -/* RX timer capture/compare register */ -#define TIM_CCR_C0 (&STM32_TIM_CCRx(TIM_CLOCK_PD_RX_C0, TIM_RX_CCR_C0)) -#define TIM_RX_CCR_REG(p) TIM_CCR_C0 - -/* TX and RX timer register */ -#define TIM_REG_TX_C0 (STM32_TIM_BASE(TIM_CLOCK_PD_TX_C0)) -#define TIM_REG_RX_C0 (STM32_TIM_BASE(TIM_CLOCK_PD_RX_C0)) -#define TIM_REG_TX(p) TIM_REG_TX_C0 -#define TIM_REG_RX(p) TIM_REG_RX_C0 - -/* use the hardware accelerator for CRC */ -#define CONFIG_HW_CRC - -/* TX uses SPI1 on PB3-4 */ -#define SPI_REGS(p) STM32_SPI1_REGS -static inline void spi_enable_clock(int port) -{ - STM32_RCC_APB2ENR |= STM32_RCC_PB2_SPI1; -} - -/* DMA for transmit uses DMA_CH3 */ -#define DMAC_SPI_TX(p) STM32_DMAC_CH3 - -/* RX uses COMP1 and COMP2 on TIM1 CH1 */ -#define CMP1OUTSEL STM32_COMP_CMP1OUTSEL_TIM1_IC1 -#define CMP2OUTSEL STM32_COMP_CMP2OUTSEL_TIM1_IC1 - -#define TIM_TX_CCR_IDX(p) TIM_TX_CCR_C0 -#define TIM_RX_CCR_IDX(p) TIM_RX_CCR_C0 -#define TIM_CCR_CS 1 -#define EXTI_COMP_MASK(p) ((1 << 21) | (1 << 22)) -#define IRQ_COMP STM32_IRQ_COMP -/* triggers packet detection on comparator falling edge */ -#define EXTI_XTSR STM32_EXTI_FTSR - -/* DMA for receive uses DMA_CH2 */ -#define DMAC_TIM_RX(p) STM32_DMAC_CH2 - -/* the pins used for communication need to be hi-speed */ -static inline void pd_set_pins_speed(int port) -{ - /* 40 MHz pin speed on SPI PB3/4/15 */ - STM32_GPIO_OSPEEDR(GPIO_B) |= 0xC00003C0; - /* 40 MHz pin speed on SPI PA6 */ - STM32_GPIO_OSPEEDR(GPIO_A) |= 0x00003000; -} - -/* Reset SPI peripheral used for TX */ -static inline void pd_tx_spi_reset(int port) -{ - /* Reset SPI1 */ - STM32_RCC_APB2RSTR |= (1 << 12); - STM32_RCC_APB2RSTR &= ~(1 << 12); -} - -/* Drive the CC line from the TX block */ -static inline void pd_tx_enable(int port, int polarity) -{ - /* put SPI function on TX pin */ - if (polarity) { - /* USB_C0_CC2_TX_DATA: PA6 is SPI1 MISO */ - gpio_set_alternate_function(GPIO_A, 0x0040, 0); - /* MCU ADC PA3 pin output low */ - STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A) - & ~(3 << (2*3))) /* PA3 disable ADC */ - | (1 << (2*3)); /* Set as GPO */ - gpio_set_level(GPIO_USB_C0_CC2_PD, 0); - } else { - /* USB_C0_CC1_TX_DATA: PB4 is SPI1 MISO */ - gpio_set_alternate_function(GPIO_B, 0x0010, 0); - /* MCU ADC PA1 pin output low */ - STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A) - & ~(3 << (2*1))) /* PA1 disable ADC */ - | (1 << (2*1)); /* Set as GPO */ - gpio_set_level(GPIO_USB_C0_CC1_PD, 0); - } - -} - -/* Put the TX driver in Hi-Z state */ -static inline void pd_tx_disable(int port, int polarity) -{ - if (polarity) { - /* Set TX_DATA to Hi-Z, PA6 is SPI1 MISO */ - STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A) - & ~(3 << (2*6))); - /* set ADC PA3 pin to ADC function (Hi-Z) */ - STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A) - | (3 << (2*3))); /* PA3 as ADC */ - } else { - /* Set TX_DATA to Hi-Z, PB4 is SPI1 MISO */ - STM32_GPIO_MODER(GPIO_B) = (STM32_GPIO_MODER(GPIO_B) - & ~(3 << (2*4))); - /* set ADC PA1 pin to ADC function (Hi-Z) */ - STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A) - | (3 << (2*1))); /* PA1 as ADC */ - } -} - -/* we know the plug polarity, do the right configuration */ -static inline void pd_select_polarity(int port, int polarity) -{ - /* - * use the right comparator : CC1 -> PA1 (COMP1 INP) - * CC2 -> PA3 (COMP2 INP) - * use VrefInt / 2 as INM (about 600mV) - */ - STM32_COMP_CSR = (STM32_COMP_CSR - & ~(STM32_COMP_CMP1INSEL_MASK | STM32_COMP_CMP2INSEL_MASK - | STM32_COMP_CMP1EN | STM32_COMP_CMP2EN)) - | STM32_COMP_CMP1INSEL_VREF12 | STM32_COMP_CMP2INSEL_VREF12 - | (polarity ? STM32_COMP_CMP2EN : STM32_COMP_CMP1EN); -} - -/* Initialize pins used for TX and put them in Hi-Z */ -static inline void pd_tx_init(void) -{ - gpio_config_module(MODULE_USB_PD, 1); -} - -static inline void pd_set_host_mode(int port, int enable) -{ - /* We're always a pull-down, nothing to do here */ -} - -static inline void pd_config_init(int port, uint8_t power_role) -{ - /* Initialize TX pins and put them in Hi-Z */ - pd_tx_init(); -} - -static inline int pd_adc_read(int port, int cc) -{ - return adc_read_channel(cc ? ADC_C0_CC2_PD : ADC_C0_CC1_PD); -} - -#endif /* __CROS_EC_USB_PD_CONFIG_H */ |