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82704c63b9
EHCI debug allows to send message with 8 bytes length, but we're only sending one byte in each transaction. Buffer up to 8 bytes to speed up debug output. Change-Id: I9dbb406833c4966c3afbd610e1b13a8fa3d62f39 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1357 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.huber@secunet.com>
88 lines
2.0 KiB
C
88 lines
2.0 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#include <string.h>
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#include <console/console.h>
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#include <usbdebug.h>
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#include <pc80/mc146818rtc.h>
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static struct ehci_debug_info dbg_info;
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void set_ehci_base(unsigned ehci_base)
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{
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unsigned diff;
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if (!dbg_info.ehci_debug)
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return;
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diff = (unsigned)dbg_info.ehci_caps - ehci_base;
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dbg_info.ehci_regs -= diff;
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dbg_info.ehci_debug -= diff;
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dbg_info.ehci_caps = (void*)ehci_base;
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}
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void set_ehci_debug(unsigned ehci_debug)
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{
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dbg_info.ehci_debug = (void*)ehci_debug;
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}
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unsigned get_ehci_debug(void)
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{
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return (unsigned)dbg_info.ehci_debug;
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}
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static void dbgp_init(void)
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{
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usbdebug_init(CONFIG_EHCI_BAR, CONFIG_EHCI_DEBUG_OFFSET, &dbg_info);
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}
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static void dbgp_tx_byte(unsigned char data)
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{
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usbdebug_tx_byte(&dbg_info, data);
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}
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static unsigned char dbgp_rx_byte(void)
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{
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unsigned char data = 0xff;
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if (dbg_info.ehci_debug)
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dbgp_bulk_read_x(&dbg_info, &data, 1);
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return data;
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}
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static void dbgp_tx_flush(void)
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{
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usbdebug_tx_flush(&dbg_info);
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}
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static int dbgp_tst_byte(void)
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{
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return (int)dbg_info.ehci_debug;
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}
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static const struct console_driver usbdebug_direct_console __console = {
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.init = dbgp_init,
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.tx_byte = dbgp_tx_byte,
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.tx_flush = dbgp_tx_flush,
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.rx_byte = dbgp_rx_byte,
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.tst_byte = dbgp_tst_byte,
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};
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