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/*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
#include <string.h>
#include <console/console.h>
#include <usbdebug.h>
#include <pc80/mc146818rtc.h>
static struct ehci_debug_info dbg_info;
void set_ehci_base(unsigned ehci_base)
{
unsigned diff;
if (!dbg_info.ehci_debug)
return;
diff = (unsigned)dbg_info.ehci_caps - ehci_base;
dbg_info.ehci_regs -= diff;
dbg_info.ehci_debug -= diff;
dbg_info.ehci_caps = (void*)ehci_base;
}
void set_ehci_debug(unsigned ehci_debug)
{
dbg_info.ehci_debug = (void*)ehci_debug;
}
unsigned get_ehci_debug(void)
{
return (unsigned)dbg_info.ehci_debug;
}
static void dbgp_init(void)
{
struct ehci_debug_info *dbg_infox;
/* At this point, all we have to do is copy the fixed address
* debug_info data structure to our version defined above. */
dbg_infox = (struct ehci_debug_info *)
((CONFIG_RAMTOP) - sizeof(struct ehci_debug_info));
memcpy(&dbg_info, dbg_infox, sizeof(struct ehci_debug_info));
}
static void dbgp_tx_byte(unsigned char data)
{
if (dbg_info.ehci_debug)
dbgp_bulk_write_x(&dbg_info, (char*)&data, 1);
}
static unsigned char dbgp_rx_byte(void)
{
unsigned char data = 0xff;
if (dbg_info.ehci_debug)
dbgp_bulk_read_x(&dbg_info, &data, 1);
return data;
}
static int dbgp_tst_byte(void)
{
return (int)dbg_info.ehci_debug;
}
static const struct console_driver usbdebug_direct_console __console = {
.init = dbgp_init,
.tx_byte = dbgp_tx_byte,
.rx_byte = dbgp_rx_byte,
.tst_byte = dbgp_tst_byte,
};
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