vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Use PCI for sm712

Browse source
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-11-03 00:04:15 +01:00
parent b4f4e1f733
commit 36dba59c07
1 changed files with 35 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
video/sm712.c
View file

@ -37,6 +37,7 @@ static struct
grub_uint8_t *ptr;
int index_color_mode;
int mapped;
grub_uint32_t base;
grub_pci_device_t dev;
} framebuffer;
@ -65,6 +66,27 @@ grub_video_sm712_setup (unsigned int width, unsigned int height,
{
int depth;
grub_err_t err;
int found = 0;
int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid __attribute__ ((unused)))
{
grub_pci_address_t addr;
grub_uint32_t class;
addr = grub_pci_make_address (dev, 2);
class = grub_pci_read (addr);
if (((class >> 16) & 0xffff) != 0x0300 || pciid != 0x0712126f)
return 0;
found = 1;
addr = grub_pci_make_address (dev, 4);
framebuffer.base = grub_pci_read (addr);
framebuffer.dev = dev;
return 1;
}
/* Decode depth from mode_type. If it is zero, then autodetect. */
depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
@ -75,6 +97,15 @@ grub_video_sm712_setup (unsigned int width, unsigned int height,
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"Only 1024x600x16 is supported");
grub_pci_iterate (find_card);
if (!found)
return grub_error (GRUB_ERR_IO, "Couldn't find graphics card");
if (found && framebuffer.base == 0)
{
/* FIXME: change framebuffer base */
}
/* Fill mode info details. */
framebuffer.mode_info.width = 1024;
framebuffer.mode_info.height = 600;
@ -92,8 +123,10 @@ grub_video_sm712_setup (unsigned int width, unsigned int height,
framebuffer.mode_info.reserved_mask_size = 0;
framebuffer.mode_info.reserved_field_pos = 0;
framebuffer.mode_info.blit_format = grub_video_get_blit_format (&framebuffer.mode_info);
framebuffer.ptr = grub_pci_device_map_range (framebuffer.dev, 1 << 26,
1024 * 600 * 2);
/* We can safely discard volatile attribute. */
framebuffer.ptr = (void *) grub_pci_device_map_range (framebuffer.dev,
framebuffer.base,
1024 * 600 * 2);
framebuffer.mapped = 1;
err = grub_video_fb_create_render_target_from_pointer (&framebuffer.render_target, &framebuffer.mode_info, framebuffer.ptr);