diff options
Diffstat (limited to 'board/fusb307bgevb')
-rw-r--r-- | board/fusb307bgevb/board.c | 181 | ||||
-rw-r--r-- | board/fusb307bgevb/board.h | 92 | ||||
-rw-r--r-- | board/fusb307bgevb/build.mk | 13 | ||||
-rw-r--r-- | board/fusb307bgevb/ec.tasklist | 11 | ||||
-rw-r--r-- | board/fusb307bgevb/gpio.inc | 31 |
5 files changed, 328 insertions, 0 deletions
diff --git a/board/fusb307bgevb/board.c b/board/fusb307bgevb/board.c new file mode 100644 index 0000000000..71b2c445da --- /dev/null +++ b/board/fusb307bgevb/board.c @@ -0,0 +1,181 @@ +/* Copyright 2020 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. + */ +/* FUSB307BGEVB configuration */ + +#include "common.h" +#include "ec_version.h" +#include "gpio.h" +#include "hooks.h" +#include "queue_policies.h" +#include "registers.h" +#include "task.h" +#include "usart-stm32f0.h" +#include "usart_tx_dma.h" +#include "usart_rx_dma.h" +#include "usb_gpio.h" +#include "usb-stream.h" +#include "util.h" +#include "usb_mux.h" +#include "usb_charge.h" +#include "usb_common.h" +#include "usb_pd_tcpm.h" +#include "usb_pd.h" +#include "charge_state.h" +#include "tcpm.h" +#include "i2c.h" +#include "power.h" +#include "power_button.h" +#include "printf.h" +#include "timer.h" + +#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) +#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) + +static void tcpc_alert_event(enum gpio_signal signal) +{ +} + +/****************************************************************************** + * Build GPIO tables and expose a subset of the GPIOs over USB. + */ +void button_event(enum gpio_signal signal); +#include "gpio_list.h" + +static enum gpio_signal const usb_gpio_list[] = { + GPIO_USER_BUTTON_ENTER, + GPIO_USER_BUTTON_UP, + GPIO_USER_BUTTON_DOWN, +}; + +/* + * This instantiates struct usb_gpio_config const usb_gpio, plus several other + * variables, all named something beginning with usb_gpio_ + */ +USB_GPIO_CONFIG(usb_gpio, + usb_gpio_list, + USB_IFACE_GPIO, + USB_EP_GPIO); + +/****************************************************************************** + * Setup USART1 as a loopback device, it just echo's back anything sent to it. + */ +static struct usart_config const loopback_usart; + +static struct queue const loopback_queue = + QUEUE_DIRECT(64, uint8_t, + loopback_usart.producer, + loopback_usart.consumer); + +static struct usart_rx_dma const loopback_rx_dma = + USART_RX_DMA(STM32_DMAC_CH3, 8); + +static struct usart_tx_dma const loopback_tx_dma = + USART_TX_DMA(STM32_DMAC_CH2, 16); + +static struct usart_config const loopback_usart = + USART_CONFIG(usart1_hw, + loopback_rx_dma.usart_rx, + loopback_tx_dma.usart_tx, + 115200, + 0, + loopback_queue, + loopback_queue); + +/****************************************************************************** + * Forward USART4 as a simple USB serial interface. + */ +static struct usart_config const forward_usart; +struct usb_stream_config const forward_usb; + +static struct queue const usart_to_usb = QUEUE_DIRECT(64, uint8_t, + forward_usart.producer, + forward_usb.consumer); +static struct queue const usb_to_usart = QUEUE_DIRECT(64, uint8_t, + forward_usb.producer, + forward_usart.consumer); + +static struct usart_tx_dma const forward_tx_dma = + USART_TX_DMA(STM32_DMAC_CH7, 16); + +static struct usart_config const forward_usart = + USART_CONFIG(usart4_hw, + usart_rx_interrupt, + forward_tx_dma.usart_tx, + 115200, + 0, + usart_to_usb, + usb_to_usart); + +#define USB_STREAM_RX_SIZE 16 +#define USB_STREAM_TX_SIZE 16 + +USB_STREAM_CONFIG(forward_usb, + USB_IFACE_STREAM, + USB_STR_STREAM_NAME, + USB_EP_STREAM, + USB_STREAM_RX_SIZE, + USB_STREAM_TX_SIZE, + usb_to_usart, + usart_to_usb) + +/****************************************************************************** + * Handle button presses by cycling the LEDs on the board. Also run a tick + * handler to cycle them when they are not actively under USB control. + */ +static enum gpio_signal button_signal; + +static void button_event_deferred(void) +{ +} +DECLARE_DEFERRED(button_event_deferred); + +void button_event(enum gpio_signal signal) +{ + button_signal = signal; + hook_call_deferred(&button_event_deferred_data, 100 * MSEC); +} + +/****************************************************************************** + * Define the strings used in our USB descriptors. + */ +const void *const usb_strings[] = { + [USB_STR_DESC] = usb_string_desc, + [USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."), + [USB_STR_PRODUCT] = USB_STRING_DESC("fusb307bgevb"), + [USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32), + [USB_STR_STREAM_NAME] = USB_STRING_DESC("Forward"), + [USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Shell"), +}; + +BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT); + +/****************************************************************************** + * I2C interface. + */ +const struct i2c_port_t i2c_ports[] = { + {"tcpc", I2C_PORT_TCPC, 400 /* kHz */, GPIO_I2C2_SCL, GPIO_I2C2_SDA} +}; +const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); + +/****************************************************************************** + * Initialize board. + */ +static void board_init(void) +{ + /* Enable button interrupts */ + gpio_enable_interrupt(GPIO_USER_BUTTON_ENTER); + gpio_enable_interrupt(GPIO_USER_BUTTON_UP); + gpio_enable_interrupt(GPIO_USER_BUTTON_DOWN); + /* Enable TCPC alert interrupts */ + gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL); + + queue_init(&loopback_queue); + queue_init(&usart_to_usb); + queue_init(&usb_to_usart); + usart_init(&loopback_usart); + usart_init(&forward_usart); + +} +DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); diff --git a/board/fusb307bgevb/board.h b/board/fusb307bgevb/board.h new file mode 100644 index 0000000000..e920c7efd1 --- /dev/null +++ b/board/fusb307bgevb/board.h @@ -0,0 +1,92 @@ +/* Copyright 2020 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. + */ + +/* Fusb307bgevb configuration */ + +#ifndef __CROS_EC_BOARD_H +#define __CROS_EC_BOARD_H + + +/* 48 MHz SYSCLK clock frequency */ +#define CPU_CLOCK 48000000 + +/* Enable USART1,3,4 and USB streams */ +#define CONFIG_STREAM_USART +#define CONFIG_STREAM_USART1 +#define CONFIG_STREAM_USART4 +#define CONFIG_STREAM_USB +#define CONFIG_CMD_USART_INFO + +/* the UART console is on USART2 (PA14/PA15) */ +#undef CONFIG_UART_CONSOLE +#define CONFIG_UART_CONSOLE 2 + +/* Optional features */ +#define CONFIG_STM_HWTIMER32 +#define CONFIG_HW_CRC +#define CONFIG_I2C +#define CONFIG_I2C_MASTER + +/* USB Configuration */ +#define CONFIG_USB +#define CONFIG_USB_PID 0x1234 +#define CONFIG_USB_CONSOLE + +/* I2C master port connected to the TCPC */ +#define I2C_PORT_TCPC 0 + +/* LCD Configuration */ +#define LCD_SLAVE_ADDR 0x27 + +/* USB interface indexes (use define rather than enum to expand them) */ +#define USB_IFACE_STREAM 0 +#define USB_IFACE_GPIO 1 +#define USB_IFACE_SPI 2 +#define USB_IFACE_CONSOLE 3 +#define USB_IFACE_COUNT 4 + +/* USB endpoint indexes (use define rather than enum to expand them) */ +#define USB_EP_CONTROL 0 +#define USB_EP_STREAM 1 +#define USB_EP_GPIO 2 +#define USB_EP_SPI 3 +#define USB_EP_CONSOLE 4 +#define USB_EP_COUNT 5 + +/* Enable control of GPIOs over USB */ +#define CONFIG_USB_GPIO + +#undef CONFIG_WATCHDOG_HELP +#undef CONFIG_LID_SWITCH + +/* + * Allow dangerous commands all the time, since we don't have a write protect + * switch. + */ +#define CONFIG_SYSTEM_UNLOCKED + +#ifndef __ASSEMBLER__ + +/* Timer selection */ +#define TIM_CLOCK32 2 + +#include "gpio_signal.h" + +/* USB string indexes */ +enum usb_strings { + USB_STR_DESC = 0, + USB_STR_VENDOR, + USB_STR_PRODUCT, + USB_STR_VERSION, + USB_STR_STREAM_NAME, + USB_STR_CONSOLE_NAME, + + USB_STR_COUNT +}; + +void board_reset_pd_mcu(void); + +#endif /* !__ASSEMBLER__ */ +#endif /* __CROS_EC_BOARD_H */ diff --git a/board/fusb307bgevb/build.mk b/board/fusb307bgevb/build.mk new file mode 100644 index 0000000000..ce45995412 --- /dev/null +++ b/board/fusb307bgevb/build.mk @@ -0,0 +1,13 @@ +# -*- makefile -*- +# Copyright 2020 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. +# +# Board specific files build + +# the IC is STmicro STM32F072RBT6 +CHIP:=stm32 +CHIP_FAMILY:=stm32f0 +CHIP_VARIANT:=stm32f07x + +board-y=board.o diff --git a/board/fusb307bgevb/ec.tasklist b/board/fusb307bgevb/ec.tasklist new file mode 100644 index 0000000000..0c2a274a1f --- /dev/null +++ b/board/fusb307bgevb/ec.tasklist @@ -0,0 +1,11 @@ +/* Copyright 2020 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. + */ + +/** + * See CONFIG_TASK_LIST in config.h for details. + */ +#define CONFIG_TASK_LIST \ + TASK_ALWAYS(HOOKS, hook_task, NULL, TASK_STACK_SIZE) \ + TASK_ALWAYS(CONSOLE, console_task, NULL, TASK_STACK_SIZE) diff --git a/board/fusb307bgevb/gpio.inc b/board/fusb307bgevb/gpio.inc new file mode 100644 index 0000000000..2aef4e3d2d --- /dev/null +++ b/board/fusb307bgevb/gpio.inc @@ -0,0 +1,31 @@ +/* -*- mode:c -*- + * + * Copyright 2020 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. + */ + +/* Declare symbolic names for all the GPIOs that we care about. + * Note: Those with interrupt handlers must be declared first. */ + +GPIO_INT(USER_BUTTON_ENTER, PIN(A, 0), GPIO_INT_FALLING, button_event) +GPIO_INT(USER_BUTTON_UP, PIN(A, 1), GPIO_INT_FALLING, button_event) +GPIO_INT(USER_BUTTON_DOWN, PIN(A, 2), GPIO_INT_FALLING, button_event) +GPIO_INT(USB_C0_PD_INT_ODL, PIN(A, 8), GPIO_INT_FALLING | GPIO_PULL_UP, tcpc_alert_event) + +/* + * I2C pins should be configured as inputs until I2C module is + * initialized. This will avoid driving the lines unintentionally. + */ +GPIO(I2C2_SCL, PIN(B, 10), GPIO_INPUT) +GPIO(I2C2_SDA, PIN(B, 11), GPIO_INPUT) + +ALTERNATE(PIN_MASK(B, 0x0C00), 1, MODULE_I2C, GPIO_ODR_HIGH ) /* I2C MASTER: PB10/11 */ + +/* Unimplemented signals which we need to emulate for now */ +UNIMPLEMENTED(ENTERING_RW) +UNIMPLEMENTED(WP_L) + +ALTERNATE(PIN_MASK(A, 0x0600), 1, MODULE_USART, 0) /* USART1: PA09/PA10 */ +ALTERNATE(PIN_MASK(A, 0xC000), 1, MODULE_UART, 0) /* USART2: PA14/PA15 */ +ALTERNATE(PIN_MASK(C, 0x0C00), 0, MODULE_USART, 0) /* USART4: PC10/PC11 */ |