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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2005,2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc.
*
* 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/>.
*/
#define grub_video_render_target grub_video_fbrender_target
#include <grub/err.h>
#include <grub/types.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/video.h>
#include <grub/video_fb.h>
#include <grub/pci.h>
#include <grub/vga.h>
#define GRUB_RADEON_FULOONG2E_TOTAL_MEMORY_SPACE 1048576
static struct
{
struct grub_video_mode_info mode_info;
struct grub_video_render_target *render_target;
grub_uint8_t *ptr;
int mapped;
grub_uint32_t base;
grub_pci_device_t dev;
} framebuffer;
static grub_err_t
grub_video_radeon_fuloong2e_video_init (void)
{
/* Reset frame buffer. */
grub_memset (&framebuffer, 0, sizeof(framebuffer));
return grub_video_fb_init ();
}
static grub_err_t
grub_video_radeon_fuloong2e_video_fini (void)
{
if (framebuffer.mapped)
grub_pci_device_unmap_range (framebuffer.dev, framebuffer.ptr,
GRUB_RADEON_FULOONG2E_TOTAL_MEMORY_SPACE);
return grub_video_fb_fini ();
}
#ifndef TEST
/* Helper for grub_video_radeon_fuloong2e_setup. */
static int
find_card (grub_pci_device_t dev, grub_pci_id_t pciid, void *data)
{
int *found = data;
grub_pci_address_t addr;
grub_uint32_t class;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
class = grub_pci_read (addr);
if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA
|| pciid != 0x515a1002)
return 0;
*found = 1;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
framebuffer.base = grub_pci_read (addr);
framebuffer.dev = dev;
return 1;
}
#endif
static grub_err_t
grub_video_radeon_fuloong2e_setup (unsigned int width, unsigned int height,
unsigned int mode_type, unsigned int mode_mask __attribute__ ((unused)))
{
int depth;
grub_err_t err;
int found = 0;
#ifndef TEST
/* Decode depth from mode_type. If it is zero, then autodetect. */
depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
>> GRUB_VIDEO_MODE_TYPE_DEPTH_POS;
if ((width != 640 && width != 0) || (height != 480 && height != 0)
|| (depth != 16 && depth != 0))
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"Only 640x480x16 is supported");
grub_pci_iterate (find_card, &found);
if (!found)
return grub_error (GRUB_ERR_IO, "Couldn't find graphics card");
#endif
/* Fill mode info details. */
framebuffer.mode_info.width = 640;
framebuffer.mode_info.height = 480;
framebuffer.mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
framebuffer.mode_info.bpp = 16;
framebuffer.mode_info.bytes_per_pixel = 2;
framebuffer.mode_info.pitch = 640 * 2;
framebuffer.mode_info.number_of_colors = 256;
framebuffer.mode_info.red_mask_size = 5;
framebuffer.mode_info.red_field_pos = 11;
framebuffer.mode_info.green_mask_size = 6;
framebuffer.mode_info.green_field_pos = 5;
framebuffer.mode_info.blue_mask_size = 5;
framebuffer.mode_info.blue_field_pos = 0;
framebuffer.mode_info.reserved_mask_size = 0;
framebuffer.mode_info.reserved_field_pos = 0;
#ifndef TEST
framebuffer.mode_info.blit_format
= grub_video_get_blit_format (&framebuffer.mode_info);
#endif
/* We can safely discard volatile attribute. */
#ifndef TEST
framebuffer.ptr
= (void *) grub_pci_device_map_range (framebuffer.dev,
framebuffer.base,
GRUB_RADEON_FULOONG2E_TOTAL_MEMORY_SPACE);
#endif
framebuffer.mapped = 1;
/* Prevent garbage from appearing on the screen. */
grub_memset (framebuffer.ptr, 0x55,
framebuffer.mode_info.height * framebuffer.mode_info.pitch);
#ifndef TEST
err = grub_video_fb_create_render_target_from_pointer (&framebuffer
.render_target,
&framebuffer.mode_info,
framebuffer.ptr);
if (err)
return err;
err = grub_video_fb_set_active_render_target (framebuffer.render_target);
if (err)
return err;
/* Copy default palette to initialize emulated palette. */
err = grub_video_fb_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS,
grub_video_fbstd_colors);
#endif
return err;
}
static grub_err_t
grub_video_radeon_fuloong2e_swap_buffers (void)
{
/* TODO: Implement buffer swapping. */
return GRUB_ERR_NONE;
}
static grub_err_t
grub_video_radeon_fuloong2e_set_active_render_target (struct grub_video_render_target *target)
{
if (target == GRUB_VIDEO_RENDER_TARGET_DISPLAY)
target = framebuffer.render_target;
return grub_video_fb_set_active_render_target (target);
}
static grub_err_t
grub_video_radeon_fuloong2e_get_info_and_fini (struct grub_video_mode_info *mode_info,
void **framebuf)
{
grub_memcpy (mode_info, &(framebuffer.mode_info), sizeof (*mode_info));
*framebuf = (char *) framebuffer.ptr;
grub_video_fb_fini ();
return GRUB_ERR_NONE;
}
static struct grub_video_adapter grub_video_radeon_fuloong2e_adapter =
{
.name = "RADEON RV100 QZ (Fuloong2E) Video Driver",
.id = GRUB_VIDEO_DRIVER_RADEON_FULOONG2E,
.prio = GRUB_VIDEO_ADAPTER_PRIO_NATIVE,
.init = grub_video_radeon_fuloong2e_video_init,
.fini = grub_video_radeon_fuloong2e_video_fini,
.setup = grub_video_radeon_fuloong2e_setup,
.get_info = grub_video_fb_get_info,
.get_info_and_fini = grub_video_radeon_fuloong2e_get_info_and_fini,
.set_palette = grub_video_fb_set_palette,
.get_palette = grub_video_fb_get_palette,
.set_viewport = grub_video_fb_set_viewport,
.get_viewport = grub_video_fb_get_viewport,
.set_region = grub_video_fb_set_region,
.get_region = grub_video_fb_get_region,
.set_area_status = grub_video_fb_set_area_status,
.get_area_status = grub_video_fb_get_area_status,
.map_color = grub_video_fb_map_color,
.map_rgb = grub_video_fb_map_rgb,
.map_rgba = grub_video_fb_map_rgba,
.unmap_color = grub_video_fb_unmap_color,
.fill_rect = grub_video_fb_fill_rect,
.blit_bitmap = grub_video_fb_blit_bitmap,
.blit_render_target = grub_video_fb_blit_render_target,
.scroll = grub_video_fb_scroll,
.swap_buffers = grub_video_radeon_fuloong2e_swap_buffers,
.create_render_target = grub_video_fb_create_render_target,
.delete_render_target = grub_video_fb_delete_render_target,
.set_active_render_target = grub_video_radeon_fuloong2e_set_active_render_target,
.get_active_render_target = grub_video_fb_get_active_render_target,
.next = 0
};
GRUB_MOD_INIT(video_radeon_fuloong2e)
{
grub_video_register (&grub_video_radeon_fuloong2e_adapter);
}
GRUB_MOD_FINI(video_radeon_fuloong2e)
{
grub_video_unregister (&grub_video_radeon_fuloong2e_adapter);
}
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