adc4753a8d
Currently this needlessly initializes the hardware in the both the romstage and the bootblock, but it works. Build option is renamed to USBDEBUG_IN_PRE_RAM to reflect the use better, related support files can be built to pre-ram stages regardless of usbdebug being enabled or not. Tested on Google/peppy (adapted to C_ENVIRONMENT_BOOTBLOCK). Change-Id: Ib77f2fc7f3d8fa524405601bae15cce9f76ffc6f Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/30480 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
69 lines
2 KiB
C
69 lines
2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007 AMD
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* Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _CONSOLE_USB_H_
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#define _CONSOLE_USB_H_
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#include <rules.h>
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#include <stdint.h>
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void usbdebug_init(void);
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int usbdebug_hw_init(bool force);
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void usb_tx_byte(int idx, unsigned char data);
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void usb_tx_flush(int idx);
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unsigned char usb_rx_byte(int idx);
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int usb_can_rx_byte(int idx);
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#define __CONSOLE_USB_ENABLE__ (IS_ENABLED(CONFIG_CONSOLE_USB) && \
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((ENV_BOOTBLOCK && IS_ENABLED(CONFIG_USBDEBUG_IN_PRE_RAM)) || \
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(ENV_ROMSTAGE && IS_ENABLED(CONFIG_USBDEBUG_IN_PRE_RAM)) || \
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(ENV_POSTCAR && IS_ENABLED(CONFIG_USBDEBUG_IN_PRE_RAM)) || \
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ENV_RAMSTAGE))
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#define USB_PIPE_FOR_CONSOLE 0
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#define USB_PIPE_FOR_GDB 0
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#if __CONSOLE_USB_ENABLE__
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static inline void __usbdebug_init(void) { usbdebug_init(); }
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static inline void __usb_tx_byte(u8 data)
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{
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usb_tx_byte(USB_PIPE_FOR_CONSOLE, data);
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}
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static inline void __usb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_CONSOLE); }
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#else
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static inline void __usbdebug_init(void) {}
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static inline void __usb_tx_byte(u8 data) {}
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static inline void __usb_tx_flush(void) {}
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#endif
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/* */
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#if 0 && IS_ENABLED(CONFIG_GDB_STUB) && \
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((ENV_ROMSTAGE && IS_ENABLED(CONFIG_USBDEBUG_IN_PRE_RAM)) \
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|| ENV_RAMSTAGE)
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static inline void __gdb_hw_init(void) { usbdebug_init(); }
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static inline void __gdb_tx_byte(u8 data)
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{
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usb_tx_byte(USB_PIPE_FOR_GDB, data);
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}
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static inline void __gdb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_GDB); }
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static inline u8 __gdb_rx_byte(void)
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{
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return usb_rx_byte(USB_PIPE_FOR_GDB);
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}
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#endif
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#endif /* _CONSOLE_USB_H_ */
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