diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:52 +0000 |
commit | ca67b09c015d4af3ae3cce12aa72e60941dbb8b5 (patch) | |
tree | b7316d7b06c373e08dabb79a2c866c568e08f49e /debian/grub-extras/915resolution/915resolution.c | |
parent | Adding upstream version 2.06. (diff) | |
download | grub2-debian/2.06-13+deb12u1.tar.xz grub2-debian/2.06-13+deb12u1.zip |
Adding debian version 2.06-13+deb12u1.debian/2.06-13+deb12u1debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/grub-extras/915resolution/915resolution.c')
-rw-r--r-- | debian/grub-extras/915resolution/915resolution.c | 1081 |
1 files changed, 1081 insertions, 0 deletions
diff --git a/debian/grub-extras/915resolution/915resolution.c b/debian/grub-extras/915resolution/915resolution.c new file mode 100644 index 0000000..0091a66 --- /dev/null +++ b/debian/grub-extras/915resolution/915resolution.c @@ -0,0 +1,1081 @@ +/* 915resolution - Utility to change vbemodes on the intel + * integrated video chipset */ + +/* + * Based on Nathan Coulson's http://nathancoulson.com/proj/eee/grub-1.96-915resolution-0.5.2-3.patch + * Oct 10, 2008, Released as 915 + * Oct 10, 2008, Updated to include support for 945GM thanks to Scot Doyle + */ + +/* Copied from 915 resolution created by steve tomjenovic + * 915 resolution was in the public domain. + * + * All I have done, was make the above program run within + * the grub2 environment. + * + * Some of the checks are still commented, as I did not find + * easy replacement for memmem. + * + * Slightly edited by Nathan Coulson (conathan@gmail.com) + */ + +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2003,2007 Free Software Foundation, Inc. + * Copyright (C) 2003 NIIBE Yutaka <gniibe@m17n.org> + * + * GRUB 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, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + + +/* 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 <grub/types.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/dl.h> +#include <grub/normal.h> +#include <grub/i386/io.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +#define printf grub_printf +#define malloc grub_malloc +#define free grub_free +#define strcmp grub_strcmp +#define fprintf(stream, ...) grub_printf(__VA_ARGS__) +#define strtol(x,y,z) grub_strtoul(x,y,z) +#define atoi(x) grub_strtoul(x,NULL,10) +#define assert(x) +#define memset grub_memset +#define outl grub_outl +#define outb grub_outb +#define inl grub_inl +#define inb grub_inb + +#define NEW(a) ((a *)(malloc(sizeof(a)))) +#define FREE(a) (free(a)) + +#define VBIOS_START 0xc0000 +#define VBIOS_SIZE 0x10000 + +#define VBIOS_FILE "/dev/mem" + +#define FALSE 0 +#define TRUE 1 + +#define MODE_TABLE_OFFSET_845G 617 + +#define RES915_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" + +#define DEBUG 0 + +typedef unsigned char * address; +typedef unsigned char byte; +typedef unsigned short word; +typedef unsigned char boolean; +typedef unsigned int cardinal; + +typedef enum { + CT_UNKWN, CT_830, CT_845G, CT_855GM, CT_865G, CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME, + CT_946GZ, CT_G965, CT_Q965, CT_965GM, CT_G33, CT_Q33, CT_Q35, CT_500GMA, + CT_GM45, CT_GMA3150, CT_HD3000 +} chipset_type; + +const char *const chipset_type_names[] = { + "UNKNOWN", "830", "845G", "855GM", "865G", "915G", "915GM", "945G", "945GM", "945GME", + "946GZ", "G965", "Q965", "965GM", "G33", "Q33", "Q35", "500GMA", + "GM45", "GMA3150", "HD3000" +}; + +typedef enum { + BT_UNKWN, BT_1, BT_2, BT_3 +} bios_type; + +const char *const bios_type_names[] = {"UNKNOWN", "TYPE 1", "TYPE 2", "TYPE 3"}; + +int freqs[] = { 60, 75, 85 }; + +typedef struct { + byte mode; + byte bits_per_pixel; + word resolution; + byte unknown; +} __attribute__((packed)) vbios_mode; + +typedef struct { + byte unknow1[2]; + byte x1; + byte x_total; + byte x2; + byte y1; + byte y_total; + byte y2; +} __attribute__((packed)) vbios_resolution_type1; + +typedef struct { + unsigned long clock; + + word x1; + word htotal; + word x2; + word hblank; + word hsyncstart; + word hsyncend; + + word y1; + word vtotal; + word y2; + word vblank; + word vsyncstart; + word vsyncend; +} __attribute__((packed)) vbios_modeline_type2; + +typedef struct { + byte xchars; + byte ychars; + byte unknown[4]; + + vbios_modeline_type2 modelines[]; +} __attribute__((packed)) vbios_resolution_type2; + +typedef struct { + unsigned long clock; + + word x1; + word htotal; + word x2; + word hblank; + word hsyncstart; + word hsyncend; + + word y1; + word vtotal; + word y2; + word vblank; + word vsyncstart; + word vsyncend; + + word timing_h; + word timing_v; + + byte unknown[6]; +} __attribute__((packed)) vbios_modeline_type3; + +typedef struct { + unsigned char unknown[6]; + + vbios_modeline_type3 modelines[]; +} __attribute__((packed)) vbios_resolution_type3; + + +typedef struct { + cardinal chipset_id; + chipset_type chipset; + bios_type bios; + + int bios_fd; + address bios_ptr; + + vbios_mode * mode_table; + cardinal mode_table_size; + + byte b1, b2; + + boolean unlocked; +} vbios_map; + + +static cardinal get_chipset_id(void) { + outl(0x80000000, 0xcf8); + return inl(0xcfc); +} + +static chipset_type get_chipset(cardinal 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 0x27ac8086: + type = CT_945GME; + break; + + case 0x29708086: + type = CT_946GZ; + break; + + case 0x29a08086: + type = CT_G965; + break; + + case 0x29908086: + type = CT_Q965; + break; + + case 0x2a008086: + type = CT_965GM; + break; + + case 0x29c08086: + type = CT_G33; + break; + + case 0x29b08086: + type = CT_Q35; + break; + + case 0x29d08086: + type = CT_Q33; + break; + + case 0x81008086: + type = CT_500GMA; + break; + + case 0xa0008086: + type = CT_GMA3150; + break; + + case 0xa0108086: + type = CT_GMA3150; + break; + + case 0x01048086: + type = CT_HD3000; + break; + + case 0x2a408086: + type = CT_GM45; + break; + + case 0x2a018086: + type = CT_965GM; + break; + + case 0x2a028086: + type = CT_965GM; + break; + + default: + type = CT_UNKWN; + break; + } + + return type; +} + + +static vbios_resolution_type1 * map_type1_resolution(vbios_map * map, word res) { + vbios_resolution_type1 * ptr = ((vbios_resolution_type1*)(map->bios_ptr + res)); + return ptr; +} + +static vbios_resolution_type2 * map_type2_resolution(vbios_map * map, word res) { + vbios_resolution_type2 * ptr = ((vbios_resolution_type2*)(map->bios_ptr + res)); + return ptr; +} + +static vbios_resolution_type3 * map_type3_resolution(vbios_map * map, word res) { + vbios_resolution_type3 * ptr = ((vbios_resolution_type3*)(map->bios_ptr + res)); + return ptr; +} + + +static boolean detect_bios_type(vbios_map * map, int entry_size) { + unsigned i; + short int 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; + } + } + + /*printf("r1 = %d r2 = %d\n", r1, r2);*/ + } + + return (r2-r1-6) % entry_size == 0; +} + + +static void close_vbios(vbios_map * map); + + +static vbios_map * open_vbios(chipset_type forced_chipset) { + vbios_map * map = NEW(vbios_map); + memset (map, 0, sizeof(vbios_map)); + + /* + * Determine chipset + */ + + if (forced_chipset == CT_UNKWN) { + map->chipset_id = get_chipset_id(); + + map->chipset = get_chipset(map->chipset_id); + } + else if (forced_chipset != CT_UNKWN) { + map->chipset = forced_chipset; + } + else { + map->chipset = CT_915GM; + } + + /* + * Map the video bios to memory + */ + + map->bios_ptr = (unsigned char *) VBIOS_START; + +#if 0 + /* + * 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)) ) { + fprintf(stderr, "ATI chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\n"); + close(map->bios_fd); + exit(2); + } + + /* + * check if we have NVIDIA + */ + + if (memmem(map->bios_ptr, VBIOS_SIZE, NVIDIA_SIGNATURE, strlen(NVIDIA_SIGNATURE))) { + fprintf(stderr, "NVIDIA chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\n"); + close(map->bios_fd); + exit(2); + } + + /* + * check if we have Intel + */ + + if (map->chipset == CT_UNKWN && memmem(map->bios_ptr, VBIOS_SIZE, INTEL_SIGNATURE, strlen(INTEL_SIGNATURE))) { + fprintf(stderr, "Intel chipset detected. However, 915resolution was unable to determine the chipset type.\n"); + + fprintf(stderr, "Chipset Id: %x\n", map->chipset_id); + + fprintf(stderr, "Please report this problem to stomljen@yahoo.com\n"); + + close_vbios(map); + exit(2); + } +#endif + + /* + * check for others + */ + + if (map->chipset == CT_UNKWN) { + fprintf(stderr, "Unknown chipset type and unrecognized bios.\n"); + fprintf(stderr, "915resolution only works with Intel 800/900 series graphic chipsets.\n"); + + fprintf(stderr, "Chipset Id: %x\n", map->chipset_id); + close_vbios(map); + return 0; + } + + /* + * Figure out where the mode table is + */ + + { + 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) { + fprintf(stderr, "Unable to locate the mode table.\n"); + fprintf(stderr, "Please run the program 'dump_bios' as root and\n"); + fprintf(stderr, "email the file 'vbios.dmp' to stomljen@yahoo.com.\n"); + + fprintf(stderr, "Chipset: %s\n", chipset_type_names[map->chipset]); + close_vbios(map); + return 0; + } + } + + /* + * Determine size of mode table + */ + + { + vbios_mode * mode_ptr = map->mode_table; + + while (mode_ptr->mode != 0xff) { + map->mode_table_size++; + mode_ptr++; + } + } + + /* + * 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 { + fprintf(stderr, "Unable to determine bios type.\n"); + fprintf(stderr, "Please run the program 'dump_bios' as root and\n"); + fprintf(stderr, "email the file 'vbios.dmp' to stomljen@yahoo.com.\n"); + + fprintf(stderr, "Chipset: %s\n", chipset_type_names[map->chipset]); + fprintf(stderr, "Mode Table Offset: $C0000 + $%x\n", ((cardinal)map->mode_table) - ((cardinal)map->bios_ptr)); + fprintf(stderr, "Mode Table Entries: %u\n", map->mode_table_size); + return 0; + } + + return map; +} + +static void close_vbios(vbios_map * map) { + assert(!map->unlocked); + + FREE(map); +} + +static void unlock_vbios(vbios_map * map) { + + assert(!map->unlocked); + + map->unlocked = TRUE; + + switch (map->chipset) { + case CT_UNKWN: + break; + case CT_830: + case CT_855GM: + outl(0x8000005a, 0xcf8); + map->b1 = inb(0xcfe); + + outl(0x8000005a, 0xcf8); + outb(0x33, 0xcfe); + 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: + case CT_965GM: + case CT_G33: + case CT_Q35: + case CT_Q33: + case CT_500GMA: + case CT_GM45: + case CT_GMA3150: + case CT_HD3000: + outl(0x80000090, 0xcf8); + map->b1 = inb(0xcfd); + map->b2 = inb(0xcfe); + + outl(0x80000090, 0xcf8); + outb(0x33, 0xcfd); + outb(0x33, 0xcfe); + break; + } + +#if DEBUG + { + cardinal t = inl(0xcfc); + printf("unlock PAM: (0x%08x)\n", t); + } +#endif +} + +static void relock_vbios(vbios_map * map) { + + assert(map->unlocked); + map->unlocked = FALSE; + + switch (map->chipset) { + case CT_UNKWN: + break; + case CT_830: + case CT_855GM: + outl(0x8000005a, 0xcf8); + outb(map->b1, 0xcfe); + 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: + case CT_965GM: + case CT_G33: + case CT_Q35: + case CT_Q33: + case CT_500GMA: + case CT_GM45: + case CT_GMA3150: + case CT_HD3000: + outl(0x80000090, 0xcf8); + outb(map->b1, 0xcfd); + outb(map->b2, 0xcfe); + break; + } + +#if DEBUG + { + cardinal t = inl(0xcfc); + printf("relock PAM: (0x%08x)\n", t); + } +#endif +} + + +static void list_modes(vbios_map *map, cardinal raw) { + cardinal 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 = ((((cardinal) res->x2) & 0xf0) << 4) | res->x1; + y = ((((cardinal) res->y2) & 0xf0) << 4) | res->y1; + + if (x != 0 && y != 0) { + printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel); + } + + if (raw) + { + printf("Mode %02x (raw) :\n\t%02x %02x\n\t%02x\n\t%02x\n\t%02x\n\t%02x\n\t%02x\n\t%02x\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) { + printf("Mode %02x : %dx%d, %d bits/pixel\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) { + printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel); + } + } + break; + case BT_UNKWN: + break; + } + } +} + +static void gtf_timings(int x, int y, int freq, + unsigned long *clock, + word *hsyncstart, word *hsyncend, word *hblank, + word *vsyncstart, word *vsyncend, word *vblank) +{ + int hbl, vbl, vfreq; + + /* + (y+1)/(20000.0/(11*freq) - 1) + 0.5 + = ((y+1) * (11*freq))/(20000.0 - (11*freq)) + 0.5 + = ((y+1) * (11*freq) + 10000.0 - (11*freq) / 2)/(20000.0 - (11*freq)) + = ((y+1) * (11*freq) + 10000.0 - 5 * freq - (freq + 1) / 2)/(20000.0 - (11*freq)) +*/ + vbl = y + 1 + + grub_divmod64 (((y+1) * (11*(long long)freq) + 10000 - 5 * (long long)freq + - (freq + 1) / 2), + (20000 - (11*(long long)freq)), 0); + vfreq = vbl * freq; + /* + (x * (30.0 - 300000.0 / vfreq) / + (70.0 + 300000.0 / vfreq) / 16.0 + 0.5) + = ((x * (30.0 - 300000.0 / vfreq) / + (70.0 + 300000.0 / vfreq) + 8) / 16) + = ((x * (30.0 * vfreq - 300000.0) / + (70.0 * vfreq + 300000.0) + 8) / 16) + = (((x * (30 * vfreq - 300000)) / + (70 * vfreq + 300000) + 8) / 16) + */ + hbl = 16 * (int)((grub_divmod64((x * (30 * (long long)vfreq - 300000)), + (70 * (long long)vfreq + 300000), 0) + + 8) / 16); + + *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 void set_mode(vbios_map * map, cardinal mode, cardinal x, cardinal y, cardinal bp, cardinal htotal, cardinal vtotal) { + int xprev, yprev; + cardinal i, j; + + 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); + + if (bp) { + map->mode_table[i].bits_per_pixel = bp; + } + + res->x2 = (htotal?(((htotal-x) >> 8) & 0x0f) : (res->x2 & 0x0f)) | ((x >> 4) & 0xf0); + res->x1 = (x & 0xff); + + res->y2 = (vtotal?(((vtotal-y) >> 8) & 0x0f) : (res->y2 & 0x0f)) | ((y >> 4) & 0xf0); + res->y1 = (y & 0xff); + if (htotal) + res->x_total = ((htotal-x) & 0xff); + + if (vtotal) + res->y_total = ((vtotal-y) & 0xff); + } + 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) { + unsigned long clock; + word hsyncstart, hsyncend, hblank; + word vsyncstart, vsyncend, vblank; + + modeline->x1 = modeline->x2 = x-1; + modeline->y1 = modeline->y2 = y-1; + + gtf_timings(x, y, freqs[j], &clock, + &hsyncstart, &hsyncend, &hblank, + &vsyncstart, &vsyncend, &vblank); + modeline->clock = clock; + modeline->hsyncstart = hsyncstart; + modeline->hsyncend = hsyncend; + modeline->hblank = hblank; + modeline->vsyncstart = vsyncstart; + modeline->vsyncend = vsyncend; + modeline->vblank = vblank; + + if (htotal) + modeline->htotal = htotal; + else + modeline->htotal = modeline->hblank; + + if (vtotal) + modeline->vtotal = vtotal; + else + modeline->vtotal = modeline->vblank; + } + } + } + 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) { + unsigned long clock; + word hsyncstart, hsyncend, hblank; + word vsyncstart, vsyncend, vblank; + + modeline->x1 = modeline->x2 = x-1; + modeline->y1 = modeline->y2 = y-1; + + gtf_timings(x, y, freqs[j], &clock, + &hsyncstart, &hsyncend, &hblank, + &vsyncstart, &vsyncend, &vblank); + modeline->clock = clock; + modeline->hsyncstart = hsyncstart; + modeline->hsyncend = hsyncend; + modeline->hblank = hblank; + modeline->vsyncstart = vsyncstart; + modeline->vsyncend = vsyncend; + modeline->vblank = 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; + } + } + } + break; + case BT_UNKWN: + break; + } + } + } +} + +static void display_map_info(vbios_map * map) { + printf("Chipset: %s\n", chipset_type_names[map->chipset]); + printf("BIOS: %s\n", bios_type_names[map->bios]); + + printf("Mode Table Offset: $C0000 + $%x\n", ((cardinal)map->mode_table) - ((cardinal)map->bios_ptr)); + printf("Mode Table Entries: %u\n", map->mode_table_size); +} + + +static int parse_args(cardinal argc, char *argv[], chipset_type *forced_chipset, + cardinal *list, cardinal *mode, cardinal *x, cardinal *y, + cardinal *bp, cardinal *raw, cardinal *htotal, + cardinal *vtotal, cardinal *quiet) { + cardinal index = 0; + + *list = *mode = *x = *y = *raw = *htotal = *vtotal = 0; + *bp = 0; + *quiet = 0; + + *forced_chipset = CT_UNKWN; + + if ((argc > index) && !strcmp(argv[index], "-q")) { + *quiet = 1; + index++; + + if(argc<=index) { + return 0; + } + } + + if ((argc > index) && !strcmp(argv[index], "-c")) { + index++; + + if(argc<=index) { + return 0; + } + + if (!strcmp(argv[index], "845")) { + *forced_chipset = CT_845G; + } + else if (!strcmp(argv[index], "855")) { + *forced_chipset = CT_855GM; + } + else if (!strcmp(argv[index], "865")) { + *forced_chipset = CT_865G; + } + else if (!strcmp(argv[index], "915G")) { + *forced_chipset = CT_915G; + } + else if (!strcmp(argv[index], "915GM")) { + *forced_chipset = CT_915GM; + } + else if (!strcmp(argv[index], "945G")) { + *forced_chipset = CT_945G; + } + else if (!strcmp(argv[index], "945GM")) { + *forced_chipset = CT_945GM; + } + else if (!strcmp(argv[index], "945GME")) { + *forced_chipset = CT_945GME; + } + else if (!strcmp(argv[index], "946GZ")) { + *forced_chipset = CT_946GZ; + } + else if (!strcmp(argv[index], "G965")) { + *forced_chipset = CT_G965; + } + else if (!strcmp(argv[index], "Q965")) { + *forced_chipset = CT_Q965; + } + else if (!strcmp(argv[index], "965GM")) { + *forced_chipset = CT_965GM; + } + else if (!strcmp(argv[index], "G33")) { + *forced_chipset = CT_G33; + } + else if (!strcmp(argv[index], "Q35")) { + *forced_chipset = CT_Q35; + } + else if (!strcmp(argv[index], "Q33")) { + *forced_chipset = CT_Q33; + } + else if (!strcmp(argv[index], "500GMA")) { + *forced_chipset = CT_500GMA; + } + else if (!strcmp(argv[index], "GM45")) { + *forced_chipset = CT_GM45; + } + else if (!strcmp(argv[index], "GMA3150")) { + *forced_chipset = CT_GMA3150; + } + else if (!strcmp(argv[index], "HD3000")) { + *forced_chipset = CT_HD3000; + } + else { + *forced_chipset = CT_UNKWN; + } + + index++; + + if (argc<=index) { + return 0; + } + } + + if ((argc > index) && !strcmp(argv[index], "-l")) { + *list = 1; + index++; + + if(argc<=index) { + return 0; + } + } + + if ((argc > index) && !strcmp(argv[index], "-r")) { + *raw = 1; + index++; + + if(argc<=index) { + return 0; + } + } + + if (argc-index < 3 || argc-index > 6) { + return -1; + } + + *mode = (cardinal) strtol(argv[index], NULL, 16); + *x = (cardinal)atoi(argv[index+1]); + *y = (cardinal)atoi(argv[index+2]); + + + if (argc-index > 3) { + *bp = (cardinal)atoi(argv[index+3]); + } + else { + *bp = 0; + } + + if (argc-index > 4) { + *htotal = (cardinal)atoi(argv[index+4]); + } + else { + *htotal = 0; + } + + if (argc-index > 5) { + *vtotal = (cardinal)atoi(argv[index+5]); + } + else { + *vtotal = 0; + } + + return 0; +} + +static void usage(void) { + printf("Usage: 915resolution [-q] [-c chipset] [-l] [mode X Y] [bits/pixel] [htotal] [vtotal]\n"); + printf(" Set the resolution to XxY for a video mode\n"); + printf(" Bits per pixel are optional. htotal/vtotal settings are additionally optional.\n"); + printf(" Options:\n"); + printf(" -q don't show any normal messages\n"); + printf(" -c force chipset type (THIS IS USED FOR DEBUG PURPOSES)\n"); + printf(" -l display the modes found in the video BIOS\n"); + printf(" -r display the modes found in the video BIOS in raw mode (THIS IS USED FOR DEBUG PURPOSES)\n"); +} + +static int main_915 (int argc, char *argv[]) +{ + vbios_map * map; + cardinal list, mode, x, y, bp, raw, htotal, vtotal; + cardinal quiet; + chipset_type forced_chipset; + + if (parse_args(argc, argv, &forced_chipset, &list, &mode, + &x, &y, &bp, &raw, &htotal, &vtotal, &quiet) == -1) { + printf("Intel 800/900 Series VBIOS Hack : version %s\n\n", + RES915_VERSION); + usage(); + return 2; + } + + if (!quiet) + printf("Intel 800/900 Series VBIOS Hack : version %s\n\n", + RES915_VERSION); + + map = open_vbios(forced_chipset); + if (!quiet) + { + display_map_info(map); + printf("\n"); + } + + if (list) { + list_modes(map, raw); + } + + if (mode!=0 && x!=0 && y!=0) { + unlock_vbios(map); + + set_mode(map, mode, x, y, bp, htotal, vtotal); + + relock_vbios(map); + + printf("Patch mode %02x to resolution %dx%d complete\n", mode, x, y); + + if (list) { + list_modes(map, raw); + } + } + + close_vbios(map); + + return 0; +} + + + + + +static grub_err_t +grub_cmd_915resolution (grub_command_t cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + return main_915 (argc, argv); +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(915resolution) +{ + cmd = grub_register_command ("915resolution", grub_cmd_915resolution, + "915resolution", "Intel VBE editor"); +} + +GRUB_MOD_FINI(915resolution) +{ + grub_unregister_command (cmd); +} |