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a975c98fb2
Provide access to the EC console through 2 USB bulk endpoints. (which can be used through the usbserial driver) Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=none TEST=run on Fruitpie and use the console over USB Change-Id: Ia897764f3a030972ee2ed323f293c5fca899765a Reviewed-on: https://chromium-review.googlesource.com/204167 Reviewed-by: Anton Staaf <robotboy@chromium.org> Commit-Queue: Vic Yang <victoryang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* Copyright (c) 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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/* USB serial console module */
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#ifndef __USB_CONSOLE_H
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#define __USB_CONSOLE_H
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#ifdef CONFIG_USB_CONSOLE
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/**
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* Put a null-terminated string to the USB console, like fputs().
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*
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* @return EC_SUCCESS, or non-zero if output was truncated.
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*/
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int usb_puts(const char *outstr);
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/**
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* Print formatted output to the USB console, like vprintf().
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*
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* See printf.h for valid formatting codes.
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*
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* @return EC_SUCCESS, or non-zero if output was truncated.
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*/
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int usb_vprintf(const char *format, va_list args);
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/**
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* Put a single character to the USB console, like putchar().
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*
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* @param c Character to put
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* @return EC_SUCCESS, or non-zero if output was truncated.
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*/
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int usb_putc(int c);
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/**
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* Read a single character of input, similar to fgetc().
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*
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* @return the character, or -1 if no input waiting.
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*/
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int usb_getc(void);
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#define usb_va_start va_start
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#define usb_va_end va_end
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#else
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#define usb_puts(x) EC_SUCCESS
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#define usb_vprintf(x, y) EC_SUCCESS
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#define usb_putc(x) EC_SUCCESS
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#define usb_getc(x) (-1)
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#define usb_va_start(x, y)
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#define usb_va_end(x)
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#endif
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#endif /* __USB_CONSOLE_H */
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