X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fbootsplash.c;h=ed104159f6c1d1a94e0f2d8cf51fbdf2b0d1582b;hb=0e27e19e2ff2f61b8374a246398e4cf0ae7fc9bd;hp=6302133e7e5ddd6d99ce94b0c42a6f9eb5294614;hpb=a576c9c8ca919d9e8435b49600265e5914f84bac;p=seabios.git diff --git a/src/bootsplash.c b/src/bootsplash.c index 6302133..ed10415 100644 --- a/src/bootsplash.c +++ b/src/bootsplash.c @@ -1,6 +1,7 @@ // Option rom scanning code. // // Copyright (C) 2009-2010 coresystems GmbH +// Copyright (C) 2010 Kevin O'Connor // // This file may be distributed under the terms of the GNU LGPLv3 license. @@ -9,10 +10,8 @@ #include "config.h" // CONFIG_* #include "util.h" // dprintf #include "jpeg.h" // splash +#include "biosvar.h" // SET_EBDA -/**************************************************************** - * Definitions - ****************************************************************/ /**************************************************************** * VESA structures @@ -20,7 +19,7 @@ struct vesa_info { - u8 vesa_signature[4]; + u32 vesa_signature; u16 vesa_version; struct segoff_s oem_string_ptr; u8 capabilities[4]; @@ -34,6 +33,9 @@ struct vesa_info u8 oem_data[256]; } PACKED; +#define VESA_SIGNATURE 0x41534556 // VESA +#define VBE2_SIGNATURE 0x32454256 // VBE2 + struct vesa_mode_info { u16 mode_attributes; @@ -75,9 +77,21 @@ struct vesa_mode_info * Helper functions ****************************************************************/ +// Call int10 vga handler. +static void +call16_int10(struct bregs *br) +{ + br->flags = F_IF; + start_preempt(); + call16_int(0x10, br); + finish_preempt(); +} + + /**************************************************************** * VGA text / graphics console ****************************************************************/ + static void enable_vga_text_console(void) { dprintf(1, "Turning on vga text mode console\n"); @@ -85,70 +99,57 @@ static void enable_vga_text_console(void) /* Enable VGA text mode */ memset(&br, 0, sizeof(br)); - br.flags = F_IF; br.ax = 0x0003; - start_preempt(); - call16_int(0x10, &br); - finish_preempt(); - - if (CONFIG_BOOTSPLASH) { - /* Switch back to start of the framebuffer - * (disable "double buffering") - */ - memset(&br, 0, sizeof(br)); - br.flags = F_IF; - br.ax = 0x4f07; - br.bl = 0x02; - br.ecx = 0; - - start_preempt(); - call16_int(0x10, &br); - finish_preempt(); - } + call16_int10(&br); // Write to screen. - printf("Starting SeaBIOS (version %s)\n\n", VERSION); + printf("SeaBIOS (version %s)\n\n", VERSION); } void enable_vga_console(void) { - /* Needs coreboot support for CBFS */ - if (!CONFIG_BOOTSPLASH || !CONFIG_COREBOOT) { - enable_vga_text_console(); - return; - } - - struct bregs br; - struct vesa_info *vesa_info; - struct vesa_mode_info *mode_info; - struct jpeg_decdata *decdata; + struct vesa_info *vesa_info = NULL; + struct vesa_mode_info *mode_info = NULL; + struct jpeg_decdata *decdata = NULL; + u8 *jpeg = NULL, *picture = NULL; + /* Needs coreboot support for CBFS */ + if (!CONFIG_BOOTSPLASH || !CONFIG_COREBOOT) + goto gotext; + struct cbfs_file *file = cbfs_finddatafile("bootsplash.jpg"); + if (!file) + goto gotext; + int filesize = cbfs_datasize(file); + + int imagesize = (CONFIG_BOOTSPLASH_X * CONFIG_BOOTSPLASH_Y * + (CONFIG_BOOTSPLASH_DEPTH / 8)); + jpeg = malloc_tmphigh(filesize); + picture = malloc_tmphigh(imagesize); vesa_info = malloc_tmplow(sizeof(*vesa_info)); mode_info = malloc_tmplow(sizeof(*mode_info)); decdata = malloc_tmphigh(sizeof(*decdata)); + if (!jpeg || !picture || !vesa_info || !mode_info || !decdata) { + warn_noalloc(); + goto gotext; + } /* Check whether we have a VESA 2.0 compliant BIOS */ memset(vesa_info, 0, sizeof(struct vesa_info)); - memcpy(vesa_info, "VBE2", 4); - + vesa_info->vesa_signature = VBE2_SIGNATURE; + struct bregs br; memset(&br, 0, sizeof(br)); - br.flags = F_IF; br.ax = 0x4f00; br.di = FLATPTR_TO_OFFSET(vesa_info); br.es = FLATPTR_TO_SEG(vesa_info); - start_preempt(); - call16_int(0x10, &br); - finish_preempt(); - - if(strcmp("VESA", (char *)vesa_info) != 0) { + call16_int10(&br); + if (vesa_info->vesa_signature != VESA_SIGNATURE) { dprintf(1,"No VBE2 found.\n"); - goto cleanup; + goto gotext; } /* Print some debugging information about our card. */ char *vendor = SEGOFF_TO_FLATPTR(vesa_info->oem_vendor_name_ptr); char *product = SEGOFF_TO_FLATPTR(vesa_info->oem_product_name_ptr); - dprintf(8, "VESA %d.%d\nVENDOR: %s\nPRODUCT: %s\n", vesa_info->vesa_version>>8, vesa_info->vesa_version&0xff, vendor, product); @@ -157,100 +158,63 @@ void enable_vga_console(void) * framebuffer start address */ memset(&br, 0, sizeof(br)); - br.flags = F_IF; br.ax = 0x4f01; br.cx = (1 << 14) | CONFIG_BOOTSPLASH_VESA_MODE; br.di = FLATPTR_TO_OFFSET(mode_info); br.es = FLATPTR_TO_SEG(mode_info); - start_preempt(); - call16_int(0x10, &br); - finish_preempt(); + call16_int10(&br); if (br.ax != 0x4f) { dprintf(1, "get_mode failed.\n"); - enable_vga_text_console(); - goto cleanup; + goto gotext; } unsigned char *framebuffer = (unsigned char *) (mode_info->phys_base_ptr); /* Switch to graphics mode */ memset(&br, 0, sizeof(br)); - br.flags = F_IF; br.ax = 0x4f02; br.bx = (1 << 14) | CONFIG_BOOTSPLASH_VESA_MODE; - start_preempt(); - call16_int(0x10, &br); - finish_preempt(); + call16_int10(&br); if (br.ax != 0x4f) { dprintf(1, "set_mode failed.\n"); - enable_vga_text_console(); - goto cleanup; + goto gotext; } - /* Switching Intel IGD to 1MB video memory will break this. Who cares. */ - int imagesize = CONFIG_BOOTSPLASH_X * CONFIG_BOOTSPLASH_Y * - (CONFIG_BOOTSPLASH_DEPTH / 8); - - /* We use "double buffering" to make things look nicer */ - framebuffer += imagesize; - dprintf(8, "framebuffer: %x\n", (u32)framebuffer); dprintf(8, "bytes per scanline: %d\n", mode_info->bytes_per_scanline); dprintf(8, "bits per pixel: %d\n", mode_info->bits_per_pixel); - /* Look for bootsplash.jpg in CBFS and decompress it... */ - int ret = 0; - unsigned char *jpeg = NULL; - - struct cbfs_file *file = cbfs_finddatafile("bootsplash.jpg"); - int filesize = 0; - - if (file) { - filesize = cbfs_datasize(file); - jpeg = malloc_tmphigh(filesize); - } else { - dprintf(1, "Could not find boot splash screen \"bootsplash.jpg\"\n"); - } - if(jpeg) { - dprintf(8, "Copying boot splash screen...\n"); - cbfs_copyfile(file, jpeg, filesize); - dprintf(8, "Decompressing boot splash screen...\n"); - ret = jpeg_decode(jpeg, framebuffer, CONFIG_BOOTSPLASH_X, + /* Decompress jpeg */ + dprintf(8, "Copying boot splash screen...\n"); + cbfs_copyfile(file, jpeg, filesize); + dprintf(8, "Decompressing boot splash screen...\n"); + int ret = jpeg_decode(jpeg, picture, CONFIG_BOOTSPLASH_X, CONFIG_BOOTSPLASH_Y, CONFIG_BOOTSPLASH_DEPTH, decdata); - if (ret) - dprintf(1, "Failed with return code %d...\n", ret); - } else { - ret = -1; - } - free(jpeg); if (ret) { - enable_vga_text_console(); - goto cleanup; + dprintf(1, "jpeg_decode failed with return code %d...\n", ret); + goto gotext; } /* Show the picture */ - memset(&br, 0, sizeof(br)); - br.flags = F_IF; - br.ax = 0x4f07; - br.bl = 0x02; - br.ecx = imagesize; - start_preempt(); - call16_int(0x10, &br); - finish_preempt(); - if (br.ax != 0x4f) { - dprintf(1, "display_start failed (ax=%04x).\n", br.ax); - enable_vga_text_console(); - } + iomemcpy(framebuffer, picture, imagesize); + SET_EBDA(bootsplash_active, 1); cleanup: - free (vesa_info); - free (mode_info); - free (decdata); + free(jpeg); + free(picture); + free(vesa_info); + free(mode_info); + free(decdata); + return; +gotext: + enable_vga_text_console(); + goto cleanup; } void disable_bootsplash(void) { - if (! CONFIG_BOOTSPLASH) + if (! CONFIG_BOOTSPLASH || !GET_EBDA(bootsplash_active)) return; + SET_EBDA(bootsplash_active, 0); enable_vga_text_console(); }