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-rw-r--r--com32/lib/sys/vesa/efi/i915resolution.c795
1 files changed, 0 insertions, 795 deletions
diff --git a/com32/lib/sys/vesa/efi/i915resolution.c b/com32/lib/sys/vesa/efi/i915resolution.c
deleted file mode 100644
index ac66175f..00000000
--- a/com32/lib/sys/vesa/efi/i915resolution.c
+++ /dev/null
@@ -1,795 +0,0 @@
-/* ----------------------------------------------------------------------- *
- *
- * Copyright 2010 Intel Corporation; author: H. Peter Anvin
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom
- * the Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall
- * be included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * Based on:
- *
- * 915 resolution by steve tomljenovic
- *
- * This was tested only on Sony VGN-FS550. Use at your own risk
- *
- * This code is based on the techniques used in :
- *
- * - 855patch. Many thanks to Christian Zietz (czietz gmx net)
- * for demonstrating how to shadow the VBIOS into system RAM
- * and then modify it.
- *
- * - 1280patch by Andrew Tipton (andrewtipton null li).
- *
- * - 855resolution by Alain Poirier
- *
- * This source code is into the public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#define __USE_GNU
-#include <string.h>
-#include <sys/io.h>
-#include <sys/cpu.h>
-#include <sys/pci.h>
-#include <unistd.h>
-#include <assert.h>
-#include <stdbool.h>
-#include "video.h"
-#include "debug.h"
-
-#define VBIOS_START 0xc0000
-#define VBIOS_SIZE 0x10000
-
-#define MODE_TABLE_OFFSET_845G 617
-
-#define VERSION "0.5.3"
-
-#define ATI_SIGNATURE1 "ATI MOBILITY RADEON"
-#define ATI_SIGNATURE2 "ATI Technologies Inc"
-#define NVIDIA_SIGNATURE "NVIDIA Corp"
-#define INTEL_SIGNATURE "Intel Corp"
-
-typedef unsigned char * address;
-
-typedef enum {
- CT_UNKWN, CT_830, CT_845G, CT_855GM, CT_865G, CT_915G, CT_915GM,
- CT_945G, CT_945GM, CT_946GZ, CT_G965, CT_Q965, CT_945GME,
- CHIPSET_TYPES
-} chipset_type;
-
-typedef enum {
- BT_UNKWN, BT_1, BT_2, BT_3
-} bios_type;
-
-static int freqs[] = { 60, 75, 85 };
-
-typedef struct {
- uint8_t mode;
- uint8_t bits_per_pixel;
- uint16_t resolution;
- uint8_t unknown;
-} __attribute__((packed)) vbios_mode;
-
-typedef struct {
- uint16_t clock; /* Clock frequency in 10 kHz */
- uint8_t x1;
- uint8_t x_total;
- uint8_t x2;
- uint8_t y1;
- uint8_t y_total;
- uint8_t y2;
-} __attribute__((packed)) vbios_resolution_type1;
-
-typedef struct {
- uint32_t clock;
-
- uint16_t x1;
- uint16_t htotal;
- uint16_t x2;
- uint16_t hblank;
- uint16_t hsyncstart;
- uint16_t hsyncend;
-
- uint16_t y1;
- uint16_t vtotal;
- uint16_t y2;
- uint16_t vblank;
- uint16_t vsyncstart;
- uint16_t vsyncend;
-} __attribute__((packed)) vbios_modeline_type2;
-
-typedef struct {
- uint8_t xchars;
- uint8_t ychars;
- uint8_t unknown[4];
-
- vbios_modeline_type2 modelines[];
-} __attribute__((packed)) vbios_resolution_type2;
-
-typedef struct {
- uint32_t clock;
-
- uint16_t x1;
- uint16_t htotal;
- uint16_t x2;
- uint16_t hblank;
- uint16_t hsyncstart;
- uint16_t hsyncend;
-
- uint16_t y1;
- uint16_t vtotal;
- uint16_t y2;
- uint16_t vblank;
- uint16_t vsyncstart;
- uint16_t vsyncend;
-
- uint16_t timing_h;
- uint16_t timing_v;
-
- uint8_t unknown[6];
-} __attribute__((packed)) vbios_modeline_type3;
-
-typedef struct {
- unsigned char unknown[6];
-
- vbios_modeline_type3 modelines[];
-} __attribute__((packed)) vbios_resolution_type3;
-
-
-typedef struct {
- unsigned int chipset_id;
- chipset_type chipset;
- bios_type bios;
-
- address bios_ptr;
-
- vbios_mode * mode_table;
- unsigned int mode_table_size;
-
- uint8_t b1, b2;
-
- bool unlocked;
-} vbios_map;
-
-#if 0 /* Debugging hacks */
-static void good_marker(int x)
-{
- ((uint16_t *)0xb8000)[x] = 0x2f30 - ((x & 0xf0) << 4) + (x & 0x0f);
-}
-
-static void bad_marker(int x)
-{
- ((uint16_t *)0xb8000)[x] = 0x4f30 - ((x & 0xf0) << 4) + (x & 0x0f);
-}
-
-static void status(const char *fmt, ...)
-{
- va_list ap;
- char msg[81], *p;
- int i;
- uint16_t *q;
-
- memset(msg, 0, sizeof msg);
- va_start(ap, fmt);
- vsnprintf(msg, sizeof msg, fmt, ap);
- va_end(ap);
- p = msg;
- q = (uint16_t *)0xb8000 + 80;
- for (i = 0; i < 80; i++)
- *q++ = *p++ + 0x1f00;
-}
-#else
-static inline void good_marker(int x) { (void)x; }
-static inline void bad_marker(int x) { (void)x; }
-static inline void status(const char *fmt, ...) { (void)fmt; }
-#endif
-
-static unsigned int get_chipset_id(void) {
- return pci_readl(0x80000000);
-}
-
-static chipset_type get_chipset(unsigned int id) {
- chipset_type type;
-
- switch (id) {
- case 0x35758086:
- type = CT_830;
- break;
-
- case 0x25608086:
- type = CT_845G;
- break;
-
- case 0x35808086:
- type = CT_855GM;
- break;
-
- case 0x25708086:
- type = CT_865G;
- break;
-
- case 0x25808086:
- type = CT_915G;
- break;
-
- case 0x25908086:
- type = CT_915GM;
- break;
-
- case 0x27708086:
- type = CT_945G;
- break;
-
- case 0x27a08086:
- type = CT_945GM;
- break;
-
- case 0x29708086:
- type = CT_946GZ;
- break;
-
- case 0x29a08086:
- type = CT_G965;
- break;
-
- case 0x29908086:
- type = CT_Q965;
- break;
-
- case 0x27ac8086:
- type = CT_945GME;
- break;
-
- default:
- type = CT_UNKWN;
- break;
- }
-
- return type;
-}
-
-
-static vbios_resolution_type1 * map_type1_resolution(vbios_map * map,
- uint16_t res)
-{
- vbios_resolution_type1 * ptr = ((vbios_resolution_type1*)(map->bios_ptr + res));
- return ptr;
-}
-
-static vbios_resolution_type2 * map_type2_resolution(vbios_map * map,
- uint16_t res)
-{
- vbios_resolution_type2 * ptr = ((vbios_resolution_type2*)(map->bios_ptr + res));
- return ptr;
-}
-
-static vbios_resolution_type3 * map_type3_resolution(vbios_map * map,
- uint16_t res)
-{
- vbios_resolution_type3 * ptr = ((vbios_resolution_type3*)(map->bios_ptr + res));
- return ptr;
-}
-
-
-static bool detect_bios_type(vbios_map * map, int entry_size)
-{
- unsigned int i;
- uint16_t r1, r2;
-
- r1 = r2 = 32000;
-
- for (i = 0; i < map->mode_table_size; i++) {
- if (map->mode_table[i].resolution <= r1) {
- r1 = map->mode_table[i].resolution;
- } else if (map->mode_table[i].resolution <= r2) {
- r2 = map->mode_table[i].resolution;
- }
- }
-
- return ((r2-r1-6) % entry_size) == 0;
-}
-
-static inline void close_vbios(vbios_map *map)
-{
- (void)map;
-}
-
-static vbios_map * open_vbios(void)
-{
- static vbios_map _map;
- vbios_map * const map = &_map;
-
- memset(&_map, 0, sizeof _map);
-
- /*
- * Determine chipset
- */
- map->chipset_id = get_chipset_id();
- good_marker(0x10);
- map->chipset = get_chipset(map->chipset_id);
- good_marker(0x11);
-
- /*
- * Map the video bios to memory
- */
- map->bios_ptr = (void *)VBIOS_START;
-
- /*
- * check if we have ATI Radeon
- */
-
- if (memmem(map->bios_ptr, VBIOS_SIZE, ATI_SIGNATURE1, strlen(ATI_SIGNATURE1)) ||
- memmem(map->bios_ptr, VBIOS_SIZE, ATI_SIGNATURE2, strlen(ATI_SIGNATURE2)) ) {
- debug("ATI chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\r\n");
- return NULL;
- }
-
- /*
- * check if we have NVIDIA
- */
-
- if (memmem(map->bios_ptr, VBIOS_SIZE, NVIDIA_SIGNATURE, strlen(NVIDIA_SIGNATURE))) {
- debug("NVIDIA chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\r\n");
- return NULL;
- }
-
- /*
- * check if we have Intel
- */
-
- if (map->chipset == CT_UNKWN && memmem(map->bios_ptr, VBIOS_SIZE, INTEL_SIGNATURE, strlen(INTEL_SIGNATURE))) {
- debug("Intel chipset detected. However, 915resolution was unable to determine the chipset type.\r\n");
-
- debug("Chipset Id: %x\r\n", map->chipset_id);
-
- debug("Please report this problem to stomljen@yahoo.com\r\n");
-
- close_vbios(map);
- return NULL;
- }
-
- /*
- * check for others
- */
-
- if (map->chipset == CT_UNKWN) {
- debug("Unknown chipset type and unrecognized bios.\r\n");
- debug("915resolution only works with Intel 800/900 series graphic chipsets.\r\n");
-
- debug("Chipset Id: %x\r\n", map->chipset_id);
- close_vbios(map);
- return NULL;
- }
-
- /*
- * Figure out where the mode table is
- */
- good_marker(0x12);
-
- {
- address p = map->bios_ptr + 16;
- address limit = map->bios_ptr + VBIOS_SIZE - (3 * sizeof(vbios_mode));
-
- while (p < limit && map->mode_table == 0) {
- vbios_mode * mode_ptr = (vbios_mode *) p;
-
- if (((mode_ptr[0].mode & 0xf0) == 0x30) && ((mode_ptr[1].mode & 0xf0) == 0x30) &&
- ((mode_ptr[2].mode & 0xf0) == 0x30) && ((mode_ptr[3].mode & 0xf0) == 0x30)) {
-
- map->mode_table = mode_ptr;
- }
-
- p++;
- }
-
- if (map->mode_table == 0) {
- debug("Unable to locate the mode table.\r\n");
- close_vbios(map);
- return NULL;
- }
- }
- good_marker(0x13);
-
- /*
- * Determine size of mode table
- */
-
- {
- vbios_mode * mode_ptr = map->mode_table;
-
- while (mode_ptr->mode != 0xff) {
- map->mode_table_size++;
- mode_ptr++;
- }
- }
- good_marker(0x14);
- status("mode_table_size = %d", map->mode_table_size);
-
- /*
- * Figure out what type of bios we have
- * order of detection is important
- */
-
- if (detect_bios_type(map, sizeof(vbios_modeline_type3))) {
- map->bios = BT_3;
- }
- else if (detect_bios_type(map, sizeof(vbios_modeline_type2))) {
- map->bios = BT_2;
- }
- else if (detect_bios_type(map, sizeof(vbios_resolution_type1))) {
- map->bios = BT_1;
- }
- else {
- debug("Unable to determine bios type.\r\n");
- debug("Mode Table Offset: $C0000 + $%x\r\n", ((unsigned long)map->mode_table) - ((unsigned long)map->bios_ptr));
- debug("Mode Table Entries: %u\r\n", map->mode_table_size);
- bad_marker(0x15);
- return NULL;
- }
- good_marker(0x15);
-
- return map;
-}
-
-static void unlock_vbios(vbios_map * map)
-{
- assert(!map->unlocked);
-
- map->unlocked = true;
-
- switch (map->chipset) {
- case CT_UNKWN:
- case CHIPSET_TYPES: /* Shut up gcc */
- break;
- case CT_830:
- case CT_855GM:
- map->b1 = pci_readb(0x8000005a);
- pci_writeb(0x33, 0x8000005a);
- break;
- case CT_845G:
- case CT_865G:
- case CT_915G:
- case CT_915GM:
- case CT_945G:
- case CT_945GM:
- case CT_945GME:
- case CT_946GZ:
- case CT_G965:
- case CT_Q965:
- map->b1 = pci_readb(0x80000091);
- map->b2 = pci_readb(0x80000092);
- pci_writeb(0x33, 0x80000091);
- pci_writeb(0x33, 0x80000092);
- break;
- }
-
-#if DEBUG
- {
- unsigned int t = inl(0xcfc);
- debug("unlock PAM: (0x%08x)\r\n", t);
- }
-#endif
-}
-
-static void relock_vbios(vbios_map * map)
-{
- assert(map->unlocked);
- map->unlocked = false;
-
- switch (map->chipset) {
- case CT_UNKWN:
- case CHIPSET_TYPES: /* Shut up gcc */
- break;
- case CT_830:
- case CT_855GM:
- pci_writeb(map->b1, 0x8000005a);
- break;
- case CT_845G:
- case CT_865G:
- case CT_915G:
- case CT_915GM:
- case CT_945G:
- case CT_945GM:
- case CT_945GME:
- case CT_946GZ:
- case CT_G965:
- case CT_Q965:
- pci_writeb(map->b1, 0x80000091);
- pci_writeb(map->b2, 0x80000092);
- break;
- }
-
-#if DEBUG
- {
- unsigned int t = inl(0xcfc);
- debug("relock PAM: (0x%08x)\r\n", t);
- }
-#endif
-}
-
-#if 0
-static void list_modes(vbios_map *map, unsigned int raw)
-{
- unsigned int i, x, y;
-
- for (i=0; i < map->mode_table_size; i++) {
- switch(map->bios) {
- case BT_1:
- {
- vbios_resolution_type1 * res = map_type1_resolution(map, map->mode_table[i].resolution);
-
- x = ((((unsigned int) res->x2) & 0xf0) << 4) | res->x1;
- y = ((((unsigned int) res->y2) & 0xf0) << 4) | res->y1;
-
- if (x != 0 && y != 0) {
- debug("Mode %02x : %dx%d, %d bits/pixel\r\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel);
- }
-
- if (raw)
- {
- debug("Mode %02x (raw) :\r\n\t%02x %02x\r\n\t%02x\r\n\t%02x\r\n\t%02x\r\n\t%02x\r\n\t%02x\r\n\t%02x\r\n", map->mode_table[i].mode, res->unknow1[0],res->unknow1[1], res->x1,res->x_total,res->x2,res->y1,res->y_total,res->y2);
- }
-
- }
- break;
- case BT_2:
- {
- vbios_resolution_type2 * res = map_type2_resolution(map, map->mode_table[i].resolution);
-
- x = res->modelines[0].x1+1;
- y = res->modelines[0].y1+1;
-
- if (x != 0 && y != 0) {
- debug("Mode %02x : %dx%d, %d bits/pixel\r\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel);
- }
- }
- break;
- case BT_3:
- {
- vbios_resolution_type3 * res = map_type3_resolution(map, map->mode_table[i].resolution);
-
- x = res->modelines[0].x1+1;
- y = res->modelines[0].y1+1;
-
- if (x != 0 && y != 0) {
- debug("Mode %02x : %dx%d, %d bits/pixel\r\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel);
- }
- }
- break;
- case BT_UNKWN:
- break;
- }
- }
-}
-#endif
-
-static void gtf_timings(int x, int y, int freq, uint32_t *clock,
- uint16_t *hsyncstart, uint16_t *hsyncend, uint16_t *hblank,
- uint16_t *vsyncstart, uint16_t *vsyncend, uint16_t *vblank)
-{
- int hbl, vbl, vfreq;
-
- vbl = y + (y+1)/(20000.0/(11*freq) - 1) + 1.5;
- vfreq = vbl * freq;
- hbl = 16 * (int)(x * (30.0 - 300000.0 / vfreq) /
- (70.0 + 300000.0 / vfreq) / 16.0 + 0.5);
-
- *vsyncstart = y;
- *vsyncend = y + 3;
- *vblank = vbl - 1;
- *hsyncstart = x + hbl / 2 - (x + hbl + 50) / 100 * 8 - 1;
- *hsyncend = x + hbl / 2 - 1;
- *hblank = x + hbl - 1;
- *clock = (x + hbl) * vfreq / 1000;
-}
-
-static int set_mode(vbios_map * map, unsigned int mode,
- unsigned int x, unsigned int y, unsigned int bp,
- unsigned int htotal, unsigned int vtotal)
-{
- int xprev, yprev;
- unsigned int i, j;
- int rv = -1;
-
- for (i=0; i < map->mode_table_size; i++) {
- if (map->mode_table[i].mode == mode) {
- switch(map->bios) {
- case BT_1:
- {
- vbios_resolution_type1 * res = map_type1_resolution(map, map->mode_table[i].resolution);
- uint32_t clock;
- uint16_t hsyncstart, hsyncend, hblank;
- uint16_t vsyncstart, vsyncend, vblank;
-
- if (bp) {
- map->mode_table[i].bits_per_pixel = bp;
- }
-
- gtf_timings(x, y, freqs[0], &clock,
- &hsyncstart, &hsyncend, &hblank,
- &vsyncstart, &vsyncend, &vblank);
-
- status("x = %d, y = %d, clock = %lu, h = %d %d %d, v = %d %d %d\n",
- x, y, clock,
- hsyncstart, hsyncend, hblank,
- vsyncstart, vsyncend, vblank);
-
- htotal = htotal ? htotal : (unsigned int)hblank+1;
- vtotal = vtotal ? vtotal : (unsigned int)vblank+1;
-
- res->clock = clock/10; /* Units appear to be 10 kHz */
- res->x2 = (((htotal-x) >> 8) & 0x0f) | ((x >> 4) & 0xf0);
- res->x1 = (x & 0xff);
-
- res->y2 = (((vtotal-y) >> 8) & 0x0f) | ((y >> 4) & 0xf0);
- res->y1 = (y & 0xff);
- if (htotal)
- res->x_total = ((htotal-x) & 0xff);
-
- if (vtotal)
- res->y_total = ((vtotal-y) & 0xff);
-
- rv = 0;
- }
- break;
- case BT_2:
- {
- vbios_resolution_type2 * res = map_type2_resolution(map, map->mode_table[i].resolution);
-
- res->xchars = x / 8;
- res->ychars = y / 16 - 1;
- xprev = res->modelines[0].x1;
- yprev = res->modelines[0].y1;
-
- for(j=0; j < 3; j++) {
- vbios_modeline_type2 * modeline = &res->modelines[j];
-
- if (modeline->x1 == xprev && modeline->y1 == yprev) {
- modeline->x1 = modeline->x2 = x-1;
- modeline->y1 = modeline->y2 = y-1;
-
- gtf_timings(x, y, freqs[j], &modeline->clock,
- &modeline->hsyncstart, &modeline->hsyncend,
- &modeline->hblank, &modeline->vsyncstart,
- &modeline->vsyncend, &modeline->vblank);
-
- if (htotal)
- modeline->htotal = htotal;
- else
- modeline->htotal = modeline->hblank;
-
- if (vtotal)
- modeline->vtotal = vtotal;
- else
- modeline->vtotal = modeline->vblank;
- }
- }
-
- rv = 0;
- }
- break;
- case BT_3:
- {
- vbios_resolution_type3 * res = map_type3_resolution(map, map->mode_table[i].resolution);
-
- xprev = res->modelines[0].x1;
- yprev = res->modelines[0].y1;
-
- for (j=0; j < 3; j++) {
- vbios_modeline_type3 * modeline = &res->modelines[j];
-
- if (modeline->x1 == xprev && modeline->y1 == yprev) {
- modeline->x1 = modeline->x2 = x-1;
- modeline->y1 = modeline->y2 = y-1;
-
- gtf_timings(x, y, freqs[j], &modeline->clock,
- &modeline->hsyncstart, &modeline->hsyncend,
- &modeline->hblank, &modeline->vsyncstart,
- &modeline->vsyncend, &modeline->vblank);
- if (htotal)
- modeline->htotal = htotal;
- else
- modeline->htotal = modeline->hblank;
- if (vtotal)
- modeline->vtotal = vtotal;
- else
- modeline->vtotal = modeline->vblank;
-
- modeline->timing_h = y-1;
- modeline->timing_v = x-1;
- }
- }
-
- rv = 0;
- }
- break;
- case BT_UNKWN:
- break;
- }
- }
- }
-
- return rv;
-}
-
-static inline void display_map_info(vbios_map * map) {
-#ifdef DEBUG
- static const char * bios_type_names[] =
- {"UNKNOWN", "TYPE 1", "TYPE 2", "TYPE 3"};
- static const char * chipset_type_names[] = {
- "UNKNOWN", "830", "845G", "855GM", "865G", "915G", "915GM", "945G",
- "945GM", "946GZ", "G965", "Q965", "945GME"
- };
-
- debug("Chipset: %s\r\n", chipset_type_names[map->chipset]);
- debug("BIOS: %s\r\n", bios_type_names[map->bios]);
-
- debug("Mode Table Offset: $C0000 + $%x\r\n",
- ((unsigned int)map->mode_table) - ((unsigned int)map->bios_ptr));
- debug("Mode Table Entries: %u\r\n", map->mode_table_size);
-#endif
- (void)map;
-}
-
-int __vesacon_i915resolution(int x, int y)
-{
- vbios_map * map;
- unsigned int mode = 0x52; /* 800x600x32 mode in known BIOSes */
- unsigned int bp = 32; /* 32 bits per pixel */
- int rv = 0;
-
- good_marker(0);
-
- map = open_vbios();
- if (!map)
- return -1;
-
- good_marker(1);
-
- display_map_info(map);
-
- debug("\r\n");
-
- if (mode && x && y) {
- good_marker(2);
- cli();
- good_marker(3);
- unlock_vbios(map);
- good_marker(4);
- rv = set_mode(map, mode, x, y, bp, 0, 0);
- if (rv)
- bad_marker(5);
- else
- good_marker(5);
- relock_vbios(map);
- good_marker(6);
- sti();
-
- debug("Patch mode %02x to resolution %dx%d complete\r\n", mode, x, y);
- }
- close_vbios(map);
-
- return rv;
-}