/* * Copyright (c) 2006 Jakub Vana * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - 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. * - 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 ``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 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. */ /** @addtogroup kernel_genarch * @{ */ /** * @file * @brief Boot framebuffer driver. */ #include <debug.h> #include <typedefs.h> #include <genarch/fb/fb.h> #include <genarch/fb/bfb.h> #include <console/console.h> uintptr_t bfb_addr = 0; uint32_t bfb_width = 0; uint32_t bfb_height = 0; uint16_t bfb_bpp = 0; uint32_t bfb_scanline = 0; uint8_t bfb_red_pos = 0; uint8_t bfb_red_size = 0; uint8_t bfb_green_pos = 0; uint8_t bfb_green_size = 0; uint8_t bfb_blue_pos = 0; uint8_t bfb_blue_size = 0; bool bfb_init(void) { if ((bfb_addr == 0) || (bfb_width == 0) || (bfb_height == 0) || (bfb_bpp == 0) || (bfb_scanline == 0)) return false; fb_properties_t bfb_props = { .addr = bfb_addr, .offset = 0, .x = bfb_width, .y = bfb_height, .scan = bfb_scanline }; switch (bfb_bpp) { case 8: bfb_props.visual = VISUAL_INDIRECT_8; break; case 16: if ((bfb_red_pos == 10) && (bfb_red_size == 5) && (bfb_green_pos == 5) && (bfb_green_size == 5) && (bfb_blue_pos == 0) && (bfb_blue_size == 5)) bfb_props.visual = VISUAL_RGB_5_5_5_LE; else bfb_props.visual = VISUAL_RGB_5_6_5_LE; break; case 24: bfb_props.visual = VISUAL_BGR_8_8_8; break; case 32: bfb_props.visual = VISUAL_BGR_8_8_8_0; break; default: LOG("Unsupported bits per pixel."); return false; } outdev_t *fbdev = fb_init(&bfb_props); if (!fbdev) return false; stdout_wire(fbdev); return true; } /** @} */