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added rx support

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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1410 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Greg Watson
2004-03-13 03:40:51 +00:00
parent 5c51c3d9d9
commit e54d55b9d9
7 changed files with 60 additions and 1 deletions
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25
src/console/console.c
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@ -52,6 +52,31 @@ void console_tx_byte(unsigned char byte)
__console_tx_byte(byte);
}
unsigned char console_rx_byte(void)
{
struct console_driver *driver;
if (!initialized)
return 0;
for(driver = console_drivers; driver < econsole_drivers; driver++)
if (driver->tst_byte)
break;
if (driver == econsole_drivers)
return 0;
while (!driver->tst_byte());
return driver->rx_byte();
}
int console_tst_byte(void)
{
struct console_driver *driver;
if (!initialized)
return 0;
for(driver = console_drivers; driver < econsole_drivers; driver++)
if (driver->tst_byte)
return driver->tst_byte();
return 0;
}
/*
* Write POST information
*/