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main.c
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/*
* Copyright 2007 Matthias Hopf <[email protected]>
*
* AtomBIOS disassembler + data structure dumper
*
* main.c:
* Disassembler + frontend.
*
* License: GPL Version 2.0
*/
// TODO: not endian safe!
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include "datastructs.h"
#include "indices.h"
#include "atombios_types.h"
#include "atombios_consts.h"
//include "atombios_tables.h"
#include "atombios_rev.h"
#define MMAP_SIZE (1024*1024)
#undef USE_MMAP /* too difficult to get big mapping (1MB) of small files) */
typedef struct {
uint8_t *base;
ATOM_ROM_HEADER *AtomRomHeader;
uint16_t *MasterCommandTables;
uint16_t *MasterDataTables;
} bios_tables_t;
enum {
D_REG = 0, D_PS, D_WS, D_FB, D_ID, D_IM, D_PLL, D_MC, D_hex8, D_hex16, D_null
} ;
const char *addrnames[] = { "REG", "PS", "WS", "FB", "ID", "IM", "PLL", "MC", "dec", "hex8", "hex16", "null" };
const char *addrtypes[] = {
"reg[%04x] ", "param[%02x] ", "work[%02x] ", "fb[%02x] ", "data[%04x]", "%04x <D_ID unimplemented>",
"PLL[%04x] ", "MC[%04x] ",
"%02x", "%04x", ""
} ;
int addrtypes_shift[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
const char *addrtypes_im[] = { NULL, "%02x", "%04x", NULL, "%08x" };
typedef struct {
int (*process) (uint8_t *d, char *out);
const char *name;
int desttype;
int srcindex, destindex;
} optab_t;
static int last_reg_index = INDEX_NONE;
static int last_reg_offset = 0;
static int opt_reg_addresses = 0;
int op_ds (uint8_t *, char *);
int op_sdb (uint8_t *, char *);
int op_0x (uint8_t *, char *);
int op_1x8 (uint8_t *, char *);
int op_1x16 (uint8_t *, char *);
int op_src (uint8_t *, char *);
int op_dest (uint8_t *, char *);
int op_destsrc (uint8_t *, char *);
int op_shift (uint8_t *, char *);
int op_switch (uint8_t *, char *);
int op_mask (uint8_t *, char *);
int op_setpt0 (uint8_t *, char *);
int op_setpt1 (uint8_t *, char *);
int op_setrb (uint8_t *, char *);
const optab_t optable[256] = {
[0x00] = { NULL, NULL, D_null, 0, 0 },
[0x01] = { op_destsrc, "MOVE", D_REG, 0, 0 },
[0x02] = { op_destsrc, "MOVE", D_PS, 0, 0 },
[0x03] = { op_destsrc, "MOVE", D_WS, 0, 0 },
[0x04] = { op_destsrc, "MOVE", D_FB, 0, 0 },
[0x05] = { op_destsrc, "MOVE", D_PLL, 0, 0 },
[0x06] = { op_destsrc, "MOVE", D_MC, 0, 0 },
[0x07] = { op_destsrc, "AND", D_REG, 0, 0 },
[0x08] = { op_destsrc, "AND", D_PS, 0, 0 },
[0x09] = { op_destsrc, "AND", D_WS, 0, 0 },
[0x0a] = { op_destsrc, "AND", D_FB, 0, 0 },
[0x0b] = { op_destsrc, "AND", D_PLL, 0, 0 },
[0x0c] = { op_destsrc, "AND", D_MC, 0, 0 },
[0x0d] = { op_destsrc, "OR", D_REG, 0, 0 },
[0x0e] = { op_destsrc, "OR", D_PS, 0, 0 },
[0x0f] = { op_destsrc, "OR", D_WS, 0, 0 },
[0x10] = { op_destsrc, "OR", D_FB, 0, 0 },
[0x11] = { op_destsrc, "OR", D_PLL, 0, 0 },
[0x12] = { op_destsrc, "OR", D_MC, 0, 0 },
[0x13] = { op_shift, "SHIFT_LEFT", D_REG, 0, 0 },
[0x14] = { op_shift, "SHIFT_LEFT", D_PS, 0, 0 },
[0x15] = { op_shift, "SHIFT_LEFT", D_WS, 0, 0 },
[0x16] = { op_shift, "SHIFT_LEFT", D_FB, 0, 0 },
[0x17] = { op_shift, "SHIFT_LEFT", D_PLL, 0, 0 },
[0x18] = { op_shift, "SHIFT_LEFT", D_MC, 0, 0 },
[0x19] = { op_shift, "SHIFT_RIGHT", D_REG, 0, 0 },
[0x1a] = { op_shift, "SHIFT_RIGHT", D_PS, 0, 0 },
[0x1b] = { op_shift, "SHIFT_RIGHT", D_WS, 0, 0 },
[0x1c] = { op_shift, "SHIFT_RIGHT", D_FB, 0, 0 },
[0x1d] = { op_shift, "SHIFT_RIGHT", D_PLL, 0, 0 },
[0x1e] = { op_shift, "SHIFT_RIGHT", D_MC, 0, 0 },
[0x1f] = { op_destsrc, "MUL", D_REG, 0, 0 },
[0x20] = { op_destsrc, "MUL", D_PS, 0, 0 },
[0x21] = { op_destsrc, "MUL", D_WS, 0, 0 },
[0x22] = { op_destsrc, "MUL", D_FB, 0, 0 },
[0x23] = { op_destsrc, "MUL", D_PLL, 0, 0 },
[0x24] = { op_destsrc, "MUL", D_MC, 0, 0 },
[0x25] = { op_destsrc, "DIV", D_REG, 0, 0 },
[0x26] = { op_destsrc, "DIV", D_PS, 0, 0 },
[0x27] = { op_destsrc, "DIV", D_WS, 0, 0 },
[0x28] = { op_destsrc, "DIV", D_FB, 0, 0 },
[0x29] = { op_destsrc, "DIV", D_PLL, 0, 0 },
[0x2a] = { op_destsrc, "DIV", D_MC, 0, 0 },
[0x2b] = { op_destsrc, "ADD", D_REG, 0, 0 },
[0x2c] = { op_destsrc, "ADD", D_PS, 0, 0 },
[0x2d] = { op_destsrc, "ADD", D_WS, 0, 0 },
[0x2e] = { op_destsrc, "ADD", D_FB, 0, 0 },
[0x2f] = { op_destsrc, "ADD", D_PLL, 0, 0 },
[0x30] = { op_destsrc, "ADD", D_MC, 0, 0 },
[0x31] = { op_destsrc, "SUB", D_REG, 0, 0 },
[0x32] = { op_destsrc, "SUB", D_PS, 0, 0 },
[0x33] = { op_destsrc, "SUB", D_WS, 0, 0 },
[0x34] = { op_destsrc, "SUB", D_FB, 0, 0 },
[0x35] = { op_destsrc, "SUB", D_PLL, 0, 0 },
[0x36] = { op_destsrc, "SUB", D_MC, 0, 0 },
[0x37] = { op_setpt1, "SET_ATI_PORT", D_hex16, INDEX_REG_MM, INDEX_ATI_PORT },
[0x38] = { op_setpt0, "SET_PCI_PORT", D_null , INDEX_REG_PCICONFIG, 0 },
[0x39] = { op_setpt0, "SET_SystemIO_PORT", D_null , INDEX_REG_SYSTEMIO, 0 },
[0x3a] = { op_setrb, "SET_REG_BLOCK", D_hex16, 0, 0 },
[0x3b] = { op_src, "SET_FB_BASE", D_hex16, 0, 0 },
[0x3c] = { op_destsrc, "COMP", D_REG, 0, 0 },
[0x3d] = { op_destsrc, "COMP", D_PS, 0, 0 },
[0x3e] = { op_destsrc, "COMP", D_WS, 0, 0 },
[0x3f] = { op_destsrc, "COMP", D_FB, 0, 0 },
[0x40] = { op_destsrc, "COMP", D_PLL, 0, 0 },
[0x41] = { op_destsrc, "COMP", D_MC, 0, 0 },
[0x42] = { op_switch, "SWITCH", D_hex16, 0, 0 },
[0x43] = { op_1x16, "JUMP", D_hex16, 0, 0 },
[0x44] = { op_1x16, "JUMP_Equal", D_hex16, 0, 0 },
[0x45] = { op_1x16, "JUMP_Below", D_hex16, 0, 0 },
[0x46] = { op_1x16, "JUMP_Above", D_hex16, 0, 0 },
[0x47] = { op_1x16, "JUMP_BelowOrEq", D_hex16, 0, 0 },
[0x48] = { op_1x16, "JUMP_AboveOrEq", D_hex16, 0, 0 },
[0x49] = { op_1x16, "JUMP_NotEqual", D_hex16, 0, 0 },
[0x4a] = { op_destsrc, "TEST", D_REG, 0, 0 },
[0x4b] = { op_destsrc, "TEST", D_PS, 0, 0 },
[0x4c] = { op_destsrc, "TEST", D_WS, 0, 0 },
[0x4d] = { op_destsrc, "TEST", D_FB, 0, 0 },
[0x4e] = { op_destsrc, "TEST", D_PLL, 0, 0 },
[0x4f] = { op_destsrc, "TEST", D_MC, 0, 0 },
[0x50] = { op_1x8, "DELAY_MilliSec", D_hex8, 0, 0 },
[0x51] = { op_1x8, "DELAY_MicroSec", D_hex8, 0, 0 },
[0x52] = { op_1x8, "CALL_TABLE", D_hex8, 0, INDEX_COMMAND_TABLE },
[0x53] = { op_1x8, "<deprecated> REPEAT", D_hex8, 0, 0 },
[0x54] = { op_dest, "CLEAR", D_REG, 0, 0 },
[0x55] = { op_dest, "CLEAR", D_PS, 0, 0 },
[0x56] = { op_dest, "CLEAR", D_WS, 0, 0 },
[0x57] = { op_dest, "CLEAR", D_FB, 0, 0 },
[0x58] = { op_dest, "CLEAR", D_PLL, 0, 0 },
[0x59] = { op_dest, "CLEAR", D_MC, 0, 0 },
[0x5a] = { op_0x, "NOP", D_null, 0, 0 },
[0x5b] = { op_0x, "EOT", D_null, 0, 0 },
[0x5c] = { op_mask, "MASK", D_REG, 0, 0 },
[0x5d] = { op_mask, "MASK", D_PS, 0, 0 },
[0x5e] = { op_mask, "MASK", D_WS, 0, 0 },
[0x5f] = { op_mask, "MASK", D_FB, 0, 0 },
[0x60] = { op_mask, "MASK", D_PLL, 0, 0 },
[0x61] = { op_mask, "MASK", D_MC, 0, 0 },
[0x62] = { op_1x8, "POST_CARD", D_hex8, 0, 0 },
[0x63] = { op_1x8, "<!impl> BEEP", D_hex8, 0, 0 },
[0x64] = { op_0x, "<deprecated> SAVE_REG", D_null, 0, 0 },
[0x65] = { op_0x, "<deprecated> RESTORE_REG", D_null, 0, 0 },
[0x66] = { op_sdb, "SET_DATA_BLOCK", D_hex8, 0, INDEX_DATA_TABLE },
[0x67] = { op_destsrc, "XOR", D_REG, 0, 0 },
[0x68] = { op_destsrc, "XOR", D_PS, 0, 0 },
[0x69] = { op_destsrc, "XOR", D_WS, 0, 0 },
[0x6a] = { op_destsrc, "XOR", D_FB, 0, 0 },
[0x6b] = { op_destsrc, "XOR", D_PLL, 0, 0 },
[0x6c] = { op_destsrc, "XOR", D_MC, 0, 0 },
[0x6d] = { op_destsrc, "SHL", D_REG, 0, 0 },
[0x6e] = { op_destsrc, "SHL", D_PS, 0, 0 },
[0x6f] = { op_destsrc, "SHL", D_WS, 0, 0 },
[0x70] = { op_destsrc, "SHL", D_FB, 0, 0 },
[0x71] = { op_destsrc, "SHL", D_PLL, 0, 0 },
[0x72] = { op_destsrc, "SHL", D_MC, 0, 0 },
[0x73] = { op_destsrc, "SHR", D_REG, 0, 0 },
[0x74] = { op_destsrc, "SHR", D_PS, 0, 0 },
[0x75] = { op_destsrc, "SHR", D_WS, 0, 0 },
[0x76] = { op_destsrc, "SHR", D_FB, 0, 0 },
[0x77] = { op_destsrc, "SHR", D_PLL, 0, 0 },
[0x78] = { op_destsrc, "SHR", D_MC, 0, 0 },
[0x79] = { op_0x, "<!doc> DEBUG", D_null, 0, 0 },
[0x7a] = { op_ds, "CTB_DS", D_null, 0, 0 },
[0x7b] = { op_destsrc, "MUL32", D_PS, 0, 0 },
[0x7c] = { op_destsrc, "MUL32", D_WS, 0, 0 },
[0x7d] = { op_destsrc, "MUL32", D_PS, 0, 0 },
[0x7e] = { op_destsrc, "MUL32", D_WS, 0, 0 },
[0x80] = { op_0x, "<!impl> Extended", D_null, 0, 0 },
[0xff] = { op_0x, "<reserved>", D_null, 0, 0 }
} ;
const char *align_source[] = {
"XXXX",
"..XX", ".XX.", "XX..",
"...X", "..X.", ".X..", "X..."
};
const char *align_byte[] = { "...X", "..X.", ".X..", "X..." };
const char *align_word[] = { "..XX", ".XX.", "XX..", "/../" };
const char *align_long[] = { "XXXX", "////", "////", "////" };
const int size_align[] = { 4, 2, 2, 2, 1, 1, 1, 1 };
bios_tables_t *get_pointers (uint8_t *data)
{
static bios_tables_t tabs; /* FIXME: */
tabs.base = data;
tabs.AtomRomHeader = (ATOM_ROM_HEADER *) (data + *(uint16_t *) (data + OFFSET_TO_POINTER_TO_ATOM_ROM_HEADER));
if (strcmp ((char *) tabs.AtomRomHeader->uaFirmWareSignature, "ATOM") != 0) {
fprintf (stderr, "No AtomBIOS\n");
exit (1);
}
tabs.MasterCommandTables = (uint16_t *)
& ((ATOM_MASTER_COMMAND_TABLE *)
(data + tabs.AtomRomHeader->usMasterCommandTableOffset))
->ListOfCommandTables;
tabs.MasterDataTables = (uint16_t *)
& ((ATOM_MASTER_DATA_TABLE *)
(data + tabs.AtomRomHeader->usMasterDataTableOffset))
->ListOfDataTables;
return &tabs;
}
int get_table_offset(uint16_t *table, int idx) {
int i, last = 0, offset = 0;
static int wrapwarning = 0;
if (! table || ! table[idx])
return 0;
for (i = 0; i <= idx; i++) {
int off = table[i];
if (off) {
if (off < last)
offset += 0x10000;
last = off - 0x8000;
}
}
if (offset && ! wrapwarning++)
printf ("*** Wrap around of table offset - assuming offset\n");
return table[idx] + offset;
}
int sub_dest (uint8_t *d, char *out, int type, int align, int size, int index) {
uint32_t val;
int r;
const char *ind;
switch (type) {
case D_REG:
val = *((uint16_t *) d);
r = 2;
break;
case D_ID: case D_IM:
out += sprintf (out, "<internal - illegal addrtype %s>", addrnames [type]);
val = 0;
r = 0;
break;
default:
val = *d;
r = 1;
}
if (type == D_WS && (ind = get_index (INDEX_WORK_REG, val)) )
out += sprintf (out, "%s", ind);
else if (r)
out += sprintf (out, addrtypes [type], val << addrtypes_shift[type]);
switch (size) {
case 1:
out += sprintf (out, " [%s]", align_byte[align]);
break;
case 2:
out += sprintf (out, " [%s]", align_word[align]);
break;
case 4:
out += sprintf (out, " [%s]", align_long[align]);
break;
}
if (type == D_REG && (ind = get_index (last_reg_index, val+last_reg_offset)) )
out += sprintf (out, " (%s)", ind);
if (r && (ind = get_index (index, val)) )
out += sprintf (out, " (%s)", ind);
return r;
}
int sub_src (uint8_t *d, char *out, int type, int align, int size, int index) {
uint32_t val;
int r;
const char *ind;
switch (type) {
case D_IM:
r = size;
break;
case D_PS: case D_WS: case D_FB: case D_PLL: case D_MC:
r = 1;
break;
case D_REG: case D_ID:
r = 2;
}
switch (r) {
case 1:
val = *d;
break;
case 2:
val = *(uint16_t *)d;
break;
case 4:
val = *(uint32_t *)d;
break;
}
if (type == D_IM) {
out += sprintf (out, addrtypes_im [size], val);
} else if (type == D_WS && (ind = get_index (INDEX_WORK_REG, val)) ) {
out += sprintf (out, "%s", ind);
out += sprintf (out, " [%s]", align_source[align]);
} else {
out += sprintf (out, addrtypes [type], val << addrtypes_shift [type]);
out += sprintf (out, " [%s]", align_source[align]);
}
if (type == D_REG && (ind = get_index (last_reg_index, val+last_reg_offset)) )
out += sprintf (out, " (%s)", ind);
if ( (ind = get_index (index, val)) )
out += sprintf (out, " (%s)", ind);
return r;
}
int op_ds (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint16_t size = *(uint16_t *) &d[1];
/* Multiline, because even the hexdump typically needs lots of space */
out += sprintf (out, "\n %-5s %d bytes", op->name, size);
return size + 3;
}
int op_sdb (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
const char *ind;
out += sprintf (out, "%-5s ", op->name);
out += sprintf (out, addrtypes [op->desttype],
d[1] << addrtypes_shift [op->desttype]);
if (d[1] == 0xff)
out += sprintf (out, " (this table)");
else if ( (ind = get_index (op->destindex, d[1])) )
out += sprintf (out, " (%s)", ind);
return 2;
}
int op_0x (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
strcpy (out, op->name);
return 1;
}
int op_1x8 (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
const char *ind;
out += sprintf (out, "%-5s ", op->name);
out += sprintf (out, addrtypes [op->desttype],
d[1] << addrtypes_shift [op->desttype]);
if ( (ind = get_index (op->destindex, d[1])) )
out += sprintf (out, " (%s)", ind);
return 2;
}
int op_1x16 (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
const char *ind;
out += sprintf (out, "%-5s ", op->name);
out += sprintf (out, addrtypes [op->desttype],
(*(uint16_t *) &d[1]) << addrtypes_shift [op->desttype]);
if ( (ind = get_index (op->destindex, d[1])) )
out += sprintf (out, " (%s)", ind);
return 3;
}
int op_src (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint8_t *t = d+1;
int attr = *t++;
out += sprintf (out, "%-5s ", op->name);
t += sub_src (t, out, attr & 0x07, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], op->srcindex);
return t - d;
}
int op_dest (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint8_t *t = d+1;
int attr = *t++;
out += sprintf (out, "%-5s ", op->name);
t += sub_src (t, out, op->desttype, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], op->destindex);
return t - d;
}
int op_destsrc (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint8_t *t = d+1;
int attr = *t++;
out += sprintf (out, "%-5s ", op->name);
t += sub_dest (t, out, op->desttype, attr >> 6, size_align[(attr & 0x38)>>3], op->destindex);
out += strlen (out);
out += sprintf (out, " <- ");
t += sub_src (t, out, attr & 0x07, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], op->srcindex);
return t - d;
}
int op_shift (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint8_t *t = d+1;
int attr = *t++;
out += sprintf (out, "%-5s ", op->name);
t += sub_src (t, out, op->desttype, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], op->destindex);
out += strlen (out);
out += sprintf (out, " by %02x", *t++);
return t - d;
}
int op_switch (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint8_t *t = d+1;
int attr = *t++;
int i = 0;
/* Multiline, because even the hexdump typically needs lots of space */
out += sprintf (out, "\n %-5s ", op->name);
t += sub_src (t, out, attr & 0x07, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], op->srcindex);
out += strlen (out);
while (t[0] != 0x5a && t[1] != 0x5a) { /* EndOfSwitch: 2x NOP */
if (*t++ != 'c') {
out += sprintf (out, "missing CASE for switch");
t -= 3;
break;
}
if (! (i++ & 7))
out += sprintf (out, "\n ");
switch (size_align[(attr & 0x38)>>3]) {
case 1:
out += sprintf (out, " %02x->", *t++);
break;
case 2:
out += sprintf (out, " %04x->", *(uint16_t *)t);
t += 2;
break;
case 4:
out += sprintf (out, " %08x->", *(uint32_t *)t);
t += 4;
break;
}
out += sprintf (out, "%04x", *(uint16_t *)t);
t += 2;
}
t += 2;
return t - d;
}
int op_mask (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
uint8_t *t = d+1;
int attr = *t++;
out += sprintf (out, "%-5s ", op->name);
t += sub_dest (t, out, op->desttype, attr >> 6, size_align[(attr & 0x38)>>3], op->destindex);
out += strlen (out);
out += sprintf (out, " & ");
t += sub_src (t, out, D_IM, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], 0);
out += strlen (out);
out += sprintf (out, " | ");
t += sub_src (t, out, attr & 0x07, (attr & 0x38) >> 3, size_align[(attr & 0x38)>>3], 0);
return t - d;
}
int op_setpt0 (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
last_reg_index = op->srcindex;
/* is never INDEX_REG_MM */
addrtypes_shift[D_REG] = 0;
return op_0x (d, out);
}
int op_setpt1 (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
last_reg_index = op->srcindex + *(uint16_t *) &d[1];
if (last_reg_index == INDEX_REG_MM && opt_reg_addresses)
addrtypes_shift[D_REG] = 2;
else
addrtypes_shift[D_REG] = 0;
return op_1x16 (d, out);
}
int op_setrb (uint8_t *d, char *out) {
const optab_t *op = &optable[d[0]];
last_reg_offset = op->srcindex + *(uint16_t *) &d[1];
return op_1x16 (d, out);
}
void do_info (bios_tables_t *tabs)
{
fprintf (stdout,
"Table Format Rev. %02x\n"
"Table Content Rev. %02x\n"
"BIOS Boot Message: '%s'\n"
"Subsystem Vendor ID %04x\n"
"Subsystem ID %04x\n\n",
tabs->AtomRomHeader->sHeader.ucTableFormatRevision,
tabs->AtomRomHeader->sHeader.ucTableContentRevision,
(char *) (tabs->base + tabs->AtomRomHeader->usBIOS_BootupMessageOffset),
tabs->AtomRomHeader->usSubsystemVendorID,
tabs->AtomRomHeader->usSubsystemID);
}
void do_list (bios_tables_t *tabs)
{
int i, len;
const char *ind;
fputs ("Command Tables:\n", stdout);
for (i = 0; i < sizeof (ATOM_MASTER_LIST_OF_COMMAND_TABLES) / sizeof (uint16_t); i++) {
int off = get_table_offset(tabs->MasterCommandTables, i);
if (off)
fprintf (stdout, " %04x: %04x Len %04x",
i, off, * (uint16_t *) (tabs->base+off));
else
fprintf (stdout, " %04x: - ", i);
if ( (ind = get_index (INDEX_COMMAND_TABLE, i)) )
fprintf (stdout, " (%s)", ind);
putc ('\n', stdout);
}
fprintf (stdout, "\nData Tables:\n");
for (i = 0; i < sizeof (ATOM_MASTER_LIST_OF_DATA_TABLES) / sizeof (uint16_t); i++) {
data_dumper_t *dt = NULL;
const char *comment = NULL;
int off = get_table_offset(tabs->MasterDataTables, i);
if (off) {
uint8_t *data= tabs->base + off;
int frev = data[2];
int crev = data[3];
fprintf (stdout, " %04x: %04x Len %04x Rev %02x:%02x",
i, off, * (uint16_t *) data, frev, crev);
dt = get_data_dumper (i, &frev, &crev, &comment);
} else
fprintf (stdout, " %04x: - ", i);
if ( (ind = get_index (INDEX_DATA_TABLE, i)) )
fprintf (stdout, " (%s)", ind);
if (dt && (len = (*dt) (NULL, NULL, 0)) )
fprintf (stdout, " (struct size %04x)", len);
putc ('\n', stdout);
}
putc ('\n', stdout);
}
int do_tableinfo (uint8_t *data, int off, int type, int nr)
{
int size, frev, crev;
const char *ind;
if (! data)
return 0;
size = * (uint16_t *) (data+off);
frev = * (data+off+2);
crev = * (data+off+3);
ind = get_index (type, nr);
fprintf (stdout, "%s %08x", index_tables[type].name, off);
if (nr >= 0)
fprintf (stdout, " #%02x (%s)", nr, ind ? ind:"<unknown>");
fputs (":\n\n", stdout);
if (off)
fprintf (stdout, " Size %04x\n", size);
if (off && size)
fprintf (stdout,
" Format Rev. %02x\n"
" Param Rev. %02x\n"
" Content Rev. %02x\n",
frev & 0x0f, frev >> 4, crev);
if (type == INDEX_COMMAND_TABLE && size) {
int attr = * (uint16_t *) (data+off+4);
fprintf (stdout,
" Attributes: Work space size %02x longs\n"
" Parameter space size %02x longs\n"
" Table update indicator %x\n",
(attr & 0xff) >> 2, (attr & 0x7f00) >> (8+2), attr >> 15);
}
putc ('\n', stdout);
return size;
}
void do_dump (uint8_t *data, int start, int end)
{
int i, j;
for (i = start & -16; i < end; i += 16) {
fprintf (stdout, " %08x: ", i);
for (j = i; j < i+16; j++) {
if (j >= start && j < end)
fprintf (stdout, "%02x", data[j]);
else
fputs (" ", stdout);
if ((j & 1) == 1)
putc (' ', stdout);
if ((j & 3) == 3)
putc (' ', stdout);
}
fputs (" ", stdout);
for (j = i; j < i+16; j++) {
if (j >= start && j < end) {
if (isprint (data[j]))
putc (data[j], stdout);
else
putc ('.', stdout);
} else
putc (' ', stdout);
}
putc ('\n', stdout);
}
putc ('\n', stdout);
}
void do_data (uint8_t *data, int off, int nr)
{
int len;
const char *comment = NULL;
int frev = data[off+2];
int crev = data[off+3];
data_dumper_t *dt = get_data_dumper (nr, &frev, &crev, &comment);
if (! dt)
return;
if (frev == 0)
fprintf (stdout, " NOTE: General revisionless dumper only.\n");
else if (frev != data[off+2] || crev != data[off+3])
fprintf (stdout, " NOTE: Dumper revision differs. "
"Used: Format Rev. %02x Content Rev. %02x\n", frev, crev);
if (comment)
fprintf (stdout, " NOTE: %s\n", comment);
if (frev == 0 || frev != data[off+2] || crev != data[off+3] || comment)
fputs ("\n", stdout);
len = (*dt) (data+off, data+off, 1);
fprintf (stdout, "\n Total data structure size: %04x\n\n", len);
}
void do_diss (uint8_t *data, int off, int size, const char *addrformat)
{
int j, len;
uint8_t *d = data + off;
char buf[256];
for (d = data + off; d < data+size; d += len) {
if (optable[*d].process) {
len = optable[*d].process (d, buf);
} else {
sprintf (buf, "<unknown> %02x", *d);
len = 1;
}
fputs (" ", stdout);
fprintf (stdout, addrformat, d - data);
for (j = 0; j < len; j++) {
if (j && ! (j & 31))
fprintf (stdout, "\n ");
fprintf (stdout, "%02x", d[j]);
}
fputs (&" "[j>8?16:j<<1], stdout);
fprintf (stdout, " %s\n", buf);
}
putc ('\n', stdout);
}
void do_test (uint8_t *data)
{
int i, j;
for (i = 0; i < 0x100; i++) {
if (! optable[i].name)
fprintf (stdout, "%02x: -\n", i);
else if (optable[i].desttype < 8)
fprintf (stdout, "%02x: %s_%s\n", i, optable[i].name, addrnames[optable[i].desttype]);
else
fprintf (stdout, "%02x: %s (%s)\n", i, optable[i].name, addrnames[optable[i].desttype]);
}
for (i = 0; i < INDEXTABLE_SIZEOF; i++) {
fprintf (stdout, "\nindex_table %s len %02x\n ", index_tables[i].name, index_tables[i].len);
for (j = 0; j < index_tables[i].len; j++)
if (index_tables[i].tab[j])
fprintf (stdout, " %02x=%s", j, index_tables[i].tab[j]);
putc ('\n', stdout);
}
putc ('\n', stdout);
}
void usage (char *argv[])
{
fprintf (stderr, "Usage: %s [<opts>] <file> <cmd> [<cmd>...]\n"
"Opts: -o <vga_offset> Specify offset of VGA bios in <file>\n"
" -r <registers.xml> Load registers specification file\n"
" -a <addr_format> Format for command addresses. Default: '%%04x: '\n"
" -A Output addresses instead of offsets\n"
" for MM register, FB, and BIOS data accesses\n"
"Cmds: i Dump info on AtomBIOS\n"
" l Info + Table list\n"
" x <start> <len> Hexdump\n"
" d <nr> Data table dump\n"
" c <nr> Command table disasm\n"
" C <start> Table disasm (debug)\n"
" T Test (debug)\n"
" F Full dump (long output, sanitized)\n"
"all values in hex\n",
argv[0]);
exit (1);
}
int main (int argc, char *argv[])
{
int c;
int opt_off = 0;
const char *opt_addrformat = "%04x: ";
char **arg;
int fdmem;
uint8_t *data;
bios_tables_t *tabs;
int off, start, len, last;
opterr = 0;
while ( (c = getopt (argc, argv, "o:r:a:A")) != -1)
switch (c) {
case 'o':
opt_off = strtol (optarg, NULL, 16);
break;
case 'r':
index_load_registers (optarg);
break;
case 'a':
opt_addrformat = optarg;
break;
case 'A':
opt_reg_addresses = 1;
break;
default:
usage (argv);
}
if (! argv[optind] || argv[optind][0] == '-')
usage (argv);
if ( (fdmem = open (argv[optind], O_RDONLY)) == -1) {
perror (argv[optind]);
return 1;
}
#if USE_MMAP
if ( (data = mmap (NULL, MMAP_SIZE, PROT_READ, MAP_PRIVATE, fdmem, opt_off))
== (void *) -1) {
perror ("mmap()");
return 1;
}
#else
if (! (data = calloc (1, MMAP_SIZE)) ) {
perror ("calloc()");
return 1;
}
if ( (len = read (fdmem, data, MMAP_SIZE)) <= 0) {
perror ("read()");
return 1;
}
printf ("Read %x bytes of data from %s\n\n", len, argv[optind]);
init_data_dumpers ();
#endif
for (arg = &argv[optind+1]; *arg && **arg; arg++) {
last_reg_index = INDEX_NONE;
last_reg_offset = 0;
addrtypes_shift[D_REG] = 0;
if (arg[0][1])
usage (argv);
switch (arg[0][0]) {
case 'i':
tabs = get_pointers (data);
do_info (tabs);
break;
case 'l':
tabs = get_pointers (data);
do_list (tabs);
break;
case 'x':
if (!arg[1] || !arg[2])
usage (argv);
start = strtol (arg[1], NULL, 16);
len = strtol (arg[2], NULL, 16);
arg += 2;
do_dump (data, start, start+len);
break;
case 'd':
if (!arg[1])
usage (argv);
start = strtol (arg[1], NULL, 16);
arg++;
tabs = get_pointers (data);
off = get_table_offset(tabs->MasterDataTables, start);
len = do_tableinfo (data, off, INDEX_DATA_TABLE, start);
if (off && len) {
do_dump (data + off, 4, len);
do_data (data + off, 0, start);
}
break;
case 'c':
if (!arg[1])
usage (argv);
start = strtol (arg[1], NULL, 16);
arg++;
tabs = get_pointers (data);
off = get_table_offset(tabs->MasterCommandTables, start);
len = do_tableinfo (data, off, INDEX_COMMAND_TABLE, start);
if (off && len)
do_diss (data + off, 6, len, opt_addrformat);
break;
case 'C':
if (!arg[1])
usage (argv);
off = strtol (arg[1], NULL, 16);
arg++;
len = do_tableinfo (data, off, INDEX_COMMAND_TABLE, -1);
do_diss (data + off, 6, len, opt_addrformat);
break;
case 'T':
do_test (data);
break;
case 'F':
tabs = get_pointers (data);
do_info (tabs);
do_list (tabs);
fputs ("\n*** Command Tables:\n\n", stdout);
last = 0;
for (start = 0; start < sizeof (ATOM_MASTER_LIST_OF_COMMAND_TABLES)
/ sizeof (uint16_t); start++) {
last_reg_index = INDEX_NONE;
last_reg_offset = 0;
off = get_table_offset(tabs->MasterCommandTables, start);
len = do_tableinfo (data, off, INDEX_COMMAND_TABLE, start);
if (off && len) {
do_diss (data + off, 6, len, opt_addrformat);
fputs ("\n", stdout);
}
}
fputs ("\n*** Data Tables:\n\n", stdout);
last = 0;
/* Data table #0 is reseverd (SET_DATA_BLOCK 0 == BIOS start */
for (start = 1; start < sizeof (ATOM_MASTER_LIST_OF_DATA_TABLES)
/ sizeof (uint16_t); start++) {
off = get_table_offset(tabs->MasterDataTables, start);
len = do_tableinfo (data, off, INDEX_DATA_TABLE, start);
if (off && len) {
do_dump (data + off, 4, len);
do_data (data + off, 0, start);
fputs ("\n", stdout);
}
}
break;
default:
usage (argv);
}
}
#if USE_MMAP
munmap (data, MMAP_SIZE);
#endif
close (fdmem);
return 0;
}