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libpayload: The initial chunk of code writen by AMD

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This is the initial chunk of code written by me and copyrighted
by AMD.  Includes everything but a few files that we pulled from
outside sources.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3170 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Jordan Crouse
2008-03-19 23:56:58 +00:00
parent c221349746
commit f6145c3c15
33 changed files with 3677 additions and 0 deletions
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33
payloads/libpayload/drivers/Makefile.inc Normal file
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#
# This file is part of the libpayload project.
#
# Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
# 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.
#
TARGETS-$(CONFIG_SERIAL_CONSOLE) += drivers/serial.o
TARGETS-$(CONFIG_VGA_CONSOLE) += drivers/vga.o
TARGETS-$(CONFIG_PC_KEYBOARD) += drivers/keyboard.o

126
payloads/libpayload/drivers/keyboard.c Normal file
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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 <arch/io.h>
#include <libpayload.h>
unsigned char map[2][0x57] = {
{
0x00, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x2D, 0x3D, 0x08, 0x09,
0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69,
0x6F, 0x70, 0x5B, 0x5D, 0x0A, 0x00, 0x61, 0x73,
0x64, 0x66, 0x67, 0x68, 0x6A, 0x6B, 0x6C, 0x3B,
0x27, 0x60, 0x00, 0x5C, 0x7A, 0x78, 0x63, 0x76,
0x62, 0x6E, 0x6D, 0x2C, 0x2E, 0x2F, 0x00, 0x2A,
0x00, 0x20,
},
{
0x00, 0x1B, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5E,
0x26, 0x2A, 0x28, 0x29, 0x5F, 0x2B, 0x08, 0x00,
0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49,
0x4F, 0x50, 0x7B, 0x7D, 0x0A, 0x00, 0x41, 0x53,
0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B, 0x4C, 0x3A,
0x22, 0x7E, 0x00, 0x7C, 0x5A, 0x58, 0x43, 0x56,
0x42, 0x4E, 0x4D, 0x3C, 0x3E, 0x3F, 0x00, 0x2A,
0x00, 0x20,
}
};
#define MOD_SHIFT 1
#define MOD_CTRL 2
#define MOD_CAPSLOCK 4
int keyboard_havechar(void)
{
unsigned char c = inb(0x64);
return c & 1;
}
unsigned char keyboard_get_scancode(void)
{
unsigned char ch = 0;
if (keyboard_havechar())
ch = inb(0x60);
return ch;
}
int keyboard_getchar(void)
{
static int modifier;
unsigned char ch;
int shift;
int ret = 0;
while(!keyboard_havechar())
;
ch = keyboard_get_scancode();
switch(ch) {
case 0x36:
case 0x2a:
modifier &= ~MOD_SHIFT;
break;
case 0x80 | 0x36:
case 0x80 | 0x2a:
modifier |= MOD_SHIFT;
case 0x1d:
modifier &= ~MOD_CTRL;
break;
case 0x80 | 0x1d:
modifier |= MOD_CTRL;
break;
case 0x3a:
if (modifier & MOD_CAPSLOCK)
modifier &= ~MOD_CAPSLOCK;
else
modifier |= MOD_CAPSLOCK;
break;
}
if (!(ch & 0x80) && ch < 0x57) {
shift = (modifier & MOD_SHIFT) ^ (modifier & MOD_CAPSLOCK) ? 1 : 0;
ret = map[shift][ch];
if (modifier & MOD_CTRL)
ret = (ret >= 0x3F && ret <= 0x5F) ? ret & 0x1f : 0;
return ret;
}
return ret;
}

78
payloads/libpayload/drivers/serial.c Normal file
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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.h>
#include <sysinfo.h>
#define IOBASE lib_sysinfo.ser_ioport
#ifdef CONFIG_SERIAL_SET_SPEED
#define DIVISOR (115200 / CONFIG_SERIAL_BAUD_RATE)
#endif
void serial_init(void)
{
#ifdef CONFIG_SERIAL_SET_SPEED
unsigned char reg;
/* Disable interrupts */
outb(0, IOBASE + 0x01);
/* Assert RTS and DTR */
outb(3, IOBASE + 0x04);
/* Set the divisor latch */
reg = inb(IOBASE + 0x03);
outb(reg | 0x80, IOBASE + 0x03);
/* Write the divisor */
outb(DIVISOR & 0xFF, IOBASE);
outb(DIVISOR >> 8 & 0xFF, IOBASE + 1);
/* Restore the previous value of the divisor */
outb(reg &= ~0x80, IOBASE + 0x03);
#endif
}
void serial_putchar(unsigned char c)
{
while((inb(IOBASE + 0x05) & 0x20) == 0);
outb(c, IOBASE);
}
int serial_havechar(void)
{
return inb(IOBASE + 0x05) & 0x01;
}
int serial_getchar(void)
{
while (!serial_havechar());
return (int) inb(IOBASE);
}

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payloads/libpayload/drivers/vga.c Normal file
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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 <arch/types.h>
#include <libpayload.h>
#define WIDTH 80
#define HEIGHT 25
#define VGA_COLOR_WHITE 7
#define CRTC_INDEX 0x3d4
#define CRTC_DATA 0x3d5
#define VIDEO(_r, _c)\
((uint16_t *) (0xB8000 + ((_r) * (WIDTH * 2)) + ((_c) * 2)))
static int cursor_enabled;
static int cursorx;
static int cursory;
static void vga_scroll_up(void);
static inline uint8_t crtc_read(uint8_t index)
{
outb(index, CRTC_INDEX);
return inb(CRTC_DATA);
}
static inline void crtc_write(uint8_t data, uint8_t index)
{
outb(index, CRTC_INDEX);
outb(data, CRTC_DATA);
}
static void vga_get_cursor_pos(void)
{
unsigned int addr;
addr = ((unsigned int) crtc_read(0x0E)) << 8;
addr += crtc_read(0x0E);
cursorx = addr % WIDTH;
cursory = addr / WIDTH;
}
static void vga_fixup_cursor(void)
{
unsigned int addr;
if (!cursor_enabled)
return;
if (cursorx < 0)
cursorx = 0;
if (cursory < 0)
cursory = 0;
if (cursorx >= WIDTH) {
cursorx = 0;
cursory++;
}
while(cursory >= HEIGHT)
vga_scroll_up();
addr = cursorx + (WIDTH * cursory);
crtc_write(addr >> 8, 0x0E);
crtc_write(addr, 0x0E);
}
void vga_cursor_enable(int state)
{
unsigned char tmp = crtc_read(0x0a);
if (state == 0) {
tmp |= (1 << 5);
cursor_enabled = 0;
}
else {
tmp &= ~(1 << 5);
cursor_enabled = 1;
vga_fixup_cursor();
}
crtc_write(tmp, 0x0a);
}
void vga_clear_line(uint8_t row, uint8_t ch, uint8_t attr)
{
int col;
uint16_t *ptr = VIDEO(0, row);
for(col = 0; col < WIDTH; col++)
ptr[col] = ((attr & 0xFF) << 8) | (ch & 0xFF);
}
static void vga_scroll_up(void)
{
uint16_t *src = VIDEO(0,1);
uint16_t *dst = VIDEO(0,0);
int i;
for(i = 0; i < (HEIGHT - 1) * WIDTH; i++)
*dst++ = *src++;
vga_clear_line(HEIGHT - 1, ' ', VGA_COLOR_WHITE);
cursory--;
}
void vga_fill(uint8_t ch, uint8_t attr)
{
uint8_t row;
for(row = 0; row < HEIGHT; row++)
vga_clear_line(row, ch, attr);
}
void vga_clear(void)
{
vga_fill(' ', VGA_COLOR_WHITE);
vga_move_cursor(0, 0);
}
void vga_putc(uint8_t row, uint8_t col, unsigned int c)
{
uint16_t *ptr = VIDEO(row, col);
*ptr = (uint16_t) (c & 0xFFFF);
}
void vga_putchar(unsigned int ch) {
uint16_t *ptr;
switch(ch & 0xFF) {
case '\r':
cursorx = 0;
break;
case '\n':
cursory++;
break;
case '\b':
cursorx--;
ptr = VIDEO(cursory, cursorx);
*ptr = (*ptr & 0xFF00) | ' ';
break;
case '\t':
cursorx = (cursorx + 8) & ~7;
break;
default:
ptr = VIDEO(cursory, cursorx);
*ptr = (uint16_t) (ch & 0xFFFF);
cursorx++;
break;
}
vga_fixup_cursor();
}
int vga_move_cursor(int x, int y)
{
cursorx = x;
cursory = y;
vga_fixup_cursor();
}
void vga_init(void)
{
/* Get the position of the cursor */
vga_get_cursor_pos();
/* See if it us currently enabled or not */
cursor_enabled = !(crtc_read(0x0A) & (1 << 5));
/* If the cursor is enabled, get us to a sane point */
if (cursor_enabled) {
/* Go to the next line */
if (cursorx) {
cursorx = 0;
cursory++;
}
vga_fixup_cursor();
}
}