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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libpayload-config.h>
#include <libpayload.h>
#include <usb/usb.h>
struct console_output_driver *console_out;
struct console_input_driver *console_in;
void console_add_output_driver(struct console_output_driver *out)
{
out->next = console_out;
console_out = out;
}
void console_add_input_driver(struct console_input_driver *in)
{
in->next = console_in;
console_in = in;
}
void console_init(void)
{
#ifdef CONFIG_VIDEO_CONSOLE
video_console_init();
#endif
#ifdef CONFIG_SERIAL_CONSOLE
serial_init();
#endif
#ifdef CONFIG_PC_KEYBOARD
keyboard_init();
#endif
#ifdef CONFIG_CBMEM_CONSOLE
cbmem_console_init();
#endif
}
static void device_putchar(unsigned char c)
{
struct console_output_driver *out;
for (out = console_out; out != 0; out = out->next)
out->putchar(c);
}
int putchar(unsigned int c)
{
c &= 0xff;
if (c == '\n')
device_putchar('\r');
device_putchar(c);
return c;
}
int puts(const char *s)
{
int n = 0;
while (*s) {
putchar(*s++);
n++;
}
putchar('\n');
return n + 1;
}
int havekey(void)
{
#ifdef CONFIG_USB
usb_poll();
#endif
struct console_input_driver *in;
for (in = console_in; in != 0; in = in->next)
if (in->havekey())
return 1;
return 0;
}
/**
* This returns an ASCII value - the two getchar functions
* cook the respective input from the device.
*/
int getchar(void)
{
while (1) {
#ifdef CONFIG_USB
usb_poll();
#endif
struct console_input_driver *in;
for (in = console_in; in != 0; in = in->next)
if (in->havechar())
return in->getchar();
}
}
int getchar_timeout(int *ms)
{
while (*ms > 0) {
if (havekey())
return getchar();
mdelay(100);
*ms -= 100;
}
if (*ms < 0)
*ms = 0;
return 0;
}
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