coreboot-kgpe-d16/src/pc80/keyboard.c

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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 coresystems GmbH
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright (C) 2003 Ollie Lo <ollielo@hotmail.com>
*
* 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
*/
- Moved hlt() to it's own header. - Reworked pnp superio device support. Now complete superio support is less than 100 lines. - Added support for hard coding resource assignments in Config.lb - Minor bug fixes to romcc - Initial support for catching the x86 processor BIST error codes. I've only seen this trigger once in production during a very suspcious reset but... - added raminit_test to test the code paths in raminit.c for the Opteron - Removed the IORESOURCE_SET bit and added IORESOURCE_ASSIGNED and IORESOURCE_STORED so we can tell what we have really done. - Added generic AGP/IOMMU setting code to x86 - Added an implementation of memmove and removed reserved identifiers from memcpy - Added minimal support for booting on pre b3 stepping K8 cores - Moved the checksum on amd8111 boards because our default location was on top of extended RTC registers - On the Hdama added support for enabling i2c hub so we can get at the temperature sensors. Not that i2c bus was implemented well enough to make that useful. - Redid the Opteron port so we should only need one reset and most of memory initialization is done in cpu_fixup. This is much, much faster. - Attempted to make the VGA IO region assigment work. The code seems to work now... - Redid the error handling in amdk8/raminit.c to distinguish between a bad value and a smbus error, and moved memory clearing out to cpufixup. - Removed CONFIG_KEYBOARD as it was useless. See pc87360/superio.c for how to setup a legacy keyboard properly. - Reworked the register values for standard hardware, moving the defintions from chip.h into the headers of the initialization routines. This is much saner and is actually implemented. - Made the hdama port an under clockers BIOS. I debuged so many interesting problems. - On amd8111_lpc added setup of architectural/legacy hardware - Enabled PCI error reporting as much as possible. - Enhanded build_opt_tbl to generate a header of the cmos option locations so that romcc compiled code can query the cmos options. - In romcc gracefully handle function names that degenerate into function pointers - Bumped the version to 1.1.6 as we are getting closer to 2.0 TODO finish optimizing the HT links of non dual boards TODO make all Opteron board work again TODO convert all superio devices to use the new helpers TODO convert the via/epia to freebios2 conventions TODO cpu fixup/setup by cpu type git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1390 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-03-11 16:01:31 +01:00
#include <console/console.h>
#include <pc80/keyboard.h>
#include <device/device.h>
#include <arch/io.h>
#include <delay.h>
/* Wait 200ms for keyboard controller answers */
#define KBC_TIMEOUT_IN_MS 200
static int kbc_input_buffer_empty(void)
{
u32 timeout;
for(timeout = KBC_TIMEOUT_IN_MS; timeout && (inb(0x64) & 0x02); timeout--) {
mdelay(1);
}
if (!timeout) {
printk_warning("Unexpected Keyboard controller input buffer full\n");
}
return !!timeout;
}
static int kbc_output_buffer_full(void)
{
u32 timeout;
for(timeout = KBC_TIMEOUT_IN_MS; timeout && ((inb(0x64) & 0x01) == 0); timeout--) {
mdelay(1);
}
if (!timeout) {
printk_warning("Keyboard controller output buffer result timeout\n");
}
return !!timeout;
}
static int kbc_cleanup_buffers(void)
{
u32 timeout;
for(timeout = KBC_TIMEOUT_IN_MS; timeout && (inb(0x64) & 0x03); timeout--) {
mdelay(1);
inb(0x60);
}
if (!timeout) {
printk_err("Couldn't cleanup the keyboard controller buffers\n");
printk_err("0x64: 0x%x, 0x60: 0x%x\n", inb(0x64), inb(0x60));
}
return !!timeout;
}
static u8 send_keyboard(u8 command)
{
u8 regval = 0;
u8 resend = 10;
do {
if (!kbc_input_buffer_empty()) return 0;
outb(command, 0x60);
if (!kbc_output_buffer_full()) {
printk_err("Could not send keyboard command %02x\n",
command);
return 0;
}
regval = inb(0x60);
--resend;
} while (regval == 0xFE && resend > 0);
return regval;
}
static void pc_keyboard_init(struct pc_keyboard *keyboard)
{
u8 regval;
printk_debug("Keyboard init...\n");
/* clean up any junk that might have been in the kbc */
if (!kbc_cleanup_buffers()) return;
/* reset/self test 8042 - send cmd 0xAA */
if (!kbc_input_buffer_empty()) return;
outb(0xAA, 0x64);
if (!kbc_output_buffer_full()) {
printk_err("Could not reset keyboard controller.\n");
return;
}
/* read self-test result, 0x55 is returned in the output buffer (0x60) */
if ((regval = inb(0x60) != 0x55)) {
printk_err("Keyboard Controller self-test failed: 0x%x\n", regval);
return;
}
/* Enable keyboard interface - No IRQ */
if (!kbc_input_buffer_empty()) return;
outb(0x60, 0x64);
if (!kbc_input_buffer_empty()) return;
outb(0x20, 0x60); /* send cmd: enable keyboard */
if (!kbc_input_buffer_empty()) {
printk_info("Timeout while enabling keyboard\n");
return;
}
/* clean up any junk that might have been in the keyboard */
if (!kbc_cleanup_buffers()) return;
/* reset keyboard and self test (keyboard side) */
regval = send_keyboard(0xFF);
if (regval != 0xFA) {
printk_err("Keyboard selftest failed ACK: 0x%x\n", regval);
return;
}
if (!kbc_output_buffer_full()) {
printk_err("Timeout waiting for keyboard after reset.\n");
return;
}
regval = inb(0x60);
if (regval != 0xAA) {
printk_err("Keyboard selftest failed: 0x%x\n", regval);
return;
}
/*
* The following set scancode stuff is what normal BIOS do. It could be
* argued that coreboot shouldn't set the scan code.....
*/
/* disable the keyboard */
regval = send_keyboard(0xF5);
if (regval != 0xFA) {
printk_err("Keyboard disable failed ACK: 0x%x\n", regval);
return;
}
/* Set scancode command */
regval = send_keyboard(0xF0);
if (regval != 0xFA) {
printk_err("Keyboard set scancode cmd failed ACK: 0x%x\n", regval);
return;
}
/* Set scancode mode 2 */
regval = send_keyboard(0x02);
if (regval != 0xFA) {
printk_err("Keyboard set scancode mode failed ACK: 0x%x\n", regval);
return;
}
/* enable the keyboard */
regval = send_keyboard(0xF4);
if (regval != 0xFA) {
printk_err("Keyboard enable failed ACK: 0x%x\n", regval);
return;
}
/* All is well - enable keyboard interface */
if (!kbc_input_buffer_empty()) return;
outb(0x60, 0x64);
if (!kbc_input_buffer_empty()) return;
outb(0x61, 0x60); /* send cmd: enable keyboard and IRQ 1 */
if (!kbc_input_buffer_empty()) {
printk_err("Timeout during final keyboard enable\n");
return;
}
}
- Moved hlt() to it's own header. - Reworked pnp superio device support. Now complete superio support is less than 100 lines. - Added support for hard coding resource assignments in Config.lb - Minor bug fixes to romcc - Initial support for catching the x86 processor BIST error codes. I've only seen this trigger once in production during a very suspcious reset but... - added raminit_test to test the code paths in raminit.c for the Opteron - Removed the IORESOURCE_SET bit and added IORESOURCE_ASSIGNED and IORESOURCE_STORED so we can tell what we have really done. - Added generic AGP/IOMMU setting code to x86 - Added an implementation of memmove and removed reserved identifiers from memcpy - Added minimal support for booting on pre b3 stepping K8 cores - Moved the checksum on amd8111 boards because our default location was on top of extended RTC registers - On the Hdama added support for enabling i2c hub so we can get at the temperature sensors. Not that i2c bus was implemented well enough to make that useful. - Redid the Opteron port so we should only need one reset and most of memory initialization is done in cpu_fixup. This is much, much faster. - Attempted to make the VGA IO region assigment work. The code seems to work now... - Redid the error handling in amdk8/raminit.c to distinguish between a bad value and a smbus error, and moved memory clearing out to cpufixup. - Removed CONFIG_KEYBOARD as it was useless. See pc87360/superio.c for how to setup a legacy keyboard properly. - Reworked the register values for standard hardware, moving the defintions from chip.h into the headers of the initialization routines. This is much saner and is actually implemented. - Made the hdama port an under clockers BIOS. I debuged so many interesting problems. - On amd8111_lpc added setup of architectural/legacy hardware - Enabled PCI error reporting as much as possible. - Enhanded build_opt_tbl to generate a header of the cmos option locations so that romcc compiled code can query the cmos options. - In romcc gracefully handle function names that degenerate into function pointers - Bumped the version to 1.1.6 as we are getting closer to 2.0 TODO finish optimizing the HT links of non dual boards TODO make all Opteron board work again TODO convert all superio devices to use the new helpers TODO convert the via/epia to freebios2 conventions TODO cpu fixup/setup by cpu type git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1390 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-03-11 16:01:31 +01:00
void init_pc_keyboard(unsigned port0, unsigned port1, struct pc_keyboard *kbd)
{
if ((port0 == 0x60) && (port1 == 0x64)) {
pc_keyboard_init(kbd);
}
}
/*
* Support PS/2 mode - oddball SIOs(KBC) need this setup
* Not well documented. Google - 0xcb keyboard controller
* This is called before pc_keyboard_init().
*/
void set_kbc_ps2_mode(void)
{
/* clean up any junk that might have been in the kbc */
if (!kbc_cleanup_buffers()) return;
/* reset/self test 8042 before we can do anything */
if (!kbc_input_buffer_empty()) return;
outb(0xAA, 0x64);
if (!kbc_output_buffer_full()) return;
/* read self-test result, 0x55 is returned in the output buffer (0x60) */
if ((inb(0x60) != 0x55)) {
printk_err("Keyboard Controller selftest failed\n");
return;
}
/* Support PS/2 mode */
if (!kbc_input_buffer_empty()) return;
outb(0xcb, 0x64);
if (!kbc_input_buffer_empty()) return;
outb(0x01, 0x60);
kbc_cleanup_buffers();
}