| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 AMD |
| * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _CONSOLE_USB_H_ |
| #define _CONSOLE_USB_H_ |
| |
| #include <rules.h> |
| #include <stdint.h> |
| |
| void usbdebug_init(void); |
| int usbdebug_hw_init(bool force); |
| |
| void usb_tx_byte(int idx, unsigned char data); |
| void usb_tx_flush(int idx); |
| unsigned char usb_rx_byte(int idx); |
| int usb_can_rx_byte(int idx); |
| |
| #define __CONSOLE_USB_ENABLE__ (IS_ENABLED(CONFIG_CONSOLE_USB) && \ |
| ((ENV_ROMSTAGE && IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE)) || \ |
| (ENV_POSTCAR && IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE)) || \ |
| ENV_RAMSTAGE)) |
| |
| #define USB_PIPE_FOR_CONSOLE 0 |
| #define USB_PIPE_FOR_GDB 0 |
| |
| #if __CONSOLE_USB_ENABLE__ |
| static inline void __usbdebug_init(void) { usbdebug_init(); } |
| static inline void __usb_tx_byte(u8 data) |
| { |
| usb_tx_byte(USB_PIPE_FOR_CONSOLE, data); |
| } |
| static inline void __usb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_CONSOLE); } |
| #else |
| static inline void __usbdebug_init(void) {} |
| static inline void __usb_tx_byte(u8 data) {} |
| static inline void __usb_tx_flush(void) {} |
| #endif |
| |
| /* */ |
| #if 0 && IS_ENABLED(CONFIG_GDB_STUB) && \ |
| ((ENV_ROMSTAGE && IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE)) \ |
| || ENV_RAMSTAGE) |
| static inline void __gdb_hw_init(void) { usbdebug_init(); } |
| static inline void __gdb_tx_byte(u8 data) |
| { |
| usb_tx_byte(USB_PIPE_FOR_GDB, data); |
| } |
| static inline void __gdb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_GDB); } |
| static inline u8 __gdb_rx_byte(void) |
| { |
| return usb_rx_byte(USB_PIPE_FOR_GDB); |
| } |
| #endif |
| |
| #endif /* _CONSOLE_USB_H_ */ |