somewhat working video_cirrus implementation
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
cced9145fc
commit
94bf3dd564
3 changed files with 545 additions and 1 deletions
|
|
@ -15,6 +15,11 @@ vga_text_mod_SOURCES = term/i386/pc/vga_text.c term/i386/vga_common.c
|
|||
vga_text_mod_CFLAGS = $(COMMON_CFLAGS)
|
||||
vga_text_mod_LDFLAGS = $(COMMON_LDFLAGS)
|
||||
|
||||
pkglib_MODULES += video_cirrus.mod
|
||||
video_cirrus_mod_SOURCES = video/cirrus.c
|
||||
video_cirrus_mod_CFLAGS = $(COMMON_CFLAGS)
|
||||
video_cirrus_mod_LDFLAGS = $(COMMON_LDFLAGS)
|
||||
|
||||
pkglib_MODULES += relocator.mod
|
||||
relocator_mod_SOURCES = lib/i386/relocator.c lib/i386/relocator_asm.S lib/i386/relocator_backward.S
|
||||
relocator_mod_CFLAGS = $(COMMON_CFLAGS)
|
||||
|
|
|
|||
|
|
@ -182,7 +182,8 @@ typedef enum grub_video_driver_id
|
|||
GRUB_VIDEO_DRIVER_EFI_UGA,
|
||||
GRUB_VIDEO_DRIVER_EFI_GOP,
|
||||
GRUB_VIDEO_DRIVER_SM712,
|
||||
GRUB_VIDEO_DRIVER_VGA
|
||||
GRUB_VIDEO_DRIVER_VGA,
|
||||
GRUB_VIDEO_DRIVER_CIRRUS
|
||||
} grub_video_driver_id_t;
|
||||
|
||||
struct grub_video_adapter
|
||||
|
|
|
|||
538
video/cirrus.c
Normal file
538
video/cirrus.c
Normal file
|
|
@ -0,0 +1,538 @@
|
|||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2005,2006,2007,2008,2009,2010 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>
|
||||
|
||||
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;
|
||||
|
||||
#define CIRRUS_APERTURE_SIZE 0x200000
|
||||
|
||||
#define GR_INDEX 0x3ce
|
||||
#define GR_DATA 0x3cf
|
||||
#define CR_INDEX 0x3d4
|
||||
#define CR_DATA 0x3d5
|
||||
#define SR_INDEX 0x3c4
|
||||
#define SR_DATA 0x3c5
|
||||
|
||||
#define CIRRUS_MAX_WIDTH 0x800
|
||||
#define CIRRUS_WIDTH_DIVISOR 8
|
||||
#define CIRRUS_MAX_HEIGHT 0x800
|
||||
#define CIRRUS_MAX_PITCH (0x1ff * CIRRUS_WIDTH_DIVISOR)
|
||||
|
||||
enum
|
||||
{
|
||||
CIRRUS_GR_MODE = 5,
|
||||
CIRRUS_GR_GR6 = 6,
|
||||
CIRRUS_GR_MAX
|
||||
};
|
||||
|
||||
#define CIRRUS_GR_GR6_GRAPHICS_MODE 1
|
||||
|
||||
#define CIRRUS_GR_MODE_256_COLOR 0x40
|
||||
#define CIRRUS_GR_MODE_READ_MODE1 0x08
|
||||
|
||||
enum
|
||||
{
|
||||
CIRRUS_CR_WIDTH = 0x01,
|
||||
CIRRUS_CR_OVERFLOW = 0x07,
|
||||
CIRRUS_CR_CELL_HEIGHT = 0x09,
|
||||
CIRRUS_CR_VSYNC_END = 0x11,
|
||||
CIRRUS_CR_HEIGHT = 0x12,
|
||||
CIRRUS_CR_PITCH = 0x13,
|
||||
CIRRUS_CR_MODE = 0x17,
|
||||
CIRRUS_CR_LINE_COMPARE = 0x18,
|
||||
CIRRUS_CR_EXTENDED_DISPLAY = 0x1b,
|
||||
CIRRUS_CR_MAX
|
||||
};
|
||||
|
||||
#define CIRRUS_CR_CELL_HEIGHT_LINE_COMPARE_MASK 0x40
|
||||
#define CIRRUS_CR_CELL_HEIGHT_LINE_COMPARE_SHIFT 3
|
||||
|
||||
#define CIRRUS_CR_OVERFLOW_HEIGHT1_SHIFT 7
|
||||
#define CIRRUS_CR_OVERFLOW_HEIGHT1_MASK 0x02
|
||||
#define CIRRUS_CR_OVERFLOW_HEIGHT2_SHIFT 3
|
||||
#define CIRRUS_CR_OVERFLOW_HEIGHT2_MASK 0xc0
|
||||
#define CIRRUS_CR_OVERFLOW_LINE_COMPARE_MASK 0x10
|
||||
#define CIRRUS_CR_OVERFLOW_LINE_COMPARE_SHIFT 4
|
||||
|
||||
#define CIRRUS_CR_EXTENDED_DISPLAY_PITCH_MASK 0x10
|
||||
#define CIRRUS_CR_EXTENDED_DISPLAY_PITCH_SHIFT 4
|
||||
|
||||
#define CIRRUS_CR_MODE_TIMING_ENABLE 0x80
|
||||
#define CIRRUS_CR_MODE_BYTE_MODE 0x40
|
||||
#define CIRRUS_CR_MODE_NO_HERCULES 0x02
|
||||
#define CIRRUS_CR_MODE_NO_CGA 0x01
|
||||
|
||||
enum
|
||||
{
|
||||
CIRRUS_SR_MEMORY_MODE = 4,
|
||||
CIRRUS_SR_EXTENDED_MODE = 7,
|
||||
CIRRUS_SR_MAX
|
||||
};
|
||||
#define CIRRUS_SR_MEMORY_MODE_CHAIN4 8
|
||||
#define CIRRUS_SR_MEMORY_MODE_NORMAL 0
|
||||
#define CIRRUS_SR_EXTENDED_MODE_LFB_ENABLE 0xf0
|
||||
#define CIRRUS_SR_EXTENDED_MODE_ENABLE_EXT 0x01
|
||||
#define CIRRUS_SR_EXTENDED_MODE_24BPP 0x04
|
||||
#define CIRRUS_SR_EXTENDED_MODE_16BPP 0x06
|
||||
#define CIRRUS_SR_EXTENDED_MODE_32BPP 0x08
|
||||
|
||||
static void
|
||||
gr_write (grub_uint8_t val, grub_uint8_t addr)
|
||||
{
|
||||
grub_outb (addr, GR_INDEX);
|
||||
grub_outb (val, GR_DATA);
|
||||
}
|
||||
|
||||
static grub_uint8_t
|
||||
gr_read (grub_uint8_t addr)
|
||||
{
|
||||
grub_outb (addr, GR_INDEX);
|
||||
return grub_inb (GR_DATA);
|
||||
}
|
||||
|
||||
static void
|
||||
cr_write (grub_uint8_t val, grub_uint8_t addr)
|
||||
{
|
||||
grub_outb (addr, CR_INDEX);
|
||||
grub_outb (val, CR_DATA);
|
||||
}
|
||||
|
||||
static grub_uint8_t
|
||||
cr_read (grub_uint8_t addr)
|
||||
{
|
||||
grub_outb (addr, CR_INDEX);
|
||||
return grub_inb (CR_DATA);
|
||||
}
|
||||
|
||||
static void
|
||||
sr_write (grub_uint8_t val, grub_uint8_t addr)
|
||||
{
|
||||
grub_outb (addr, SR_INDEX);
|
||||
grub_outb (val, SR_DATA);
|
||||
}
|
||||
|
||||
static grub_uint8_t
|
||||
sr_read (grub_uint8_t addr)
|
||||
{
|
||||
grub_outb (addr, SR_INDEX);
|
||||
return grub_inb (SR_DATA);
|
||||
}
|
||||
|
||||
static void
|
||||
write_hidden_dac (grub_uint8_t data)
|
||||
{
|
||||
grub_inb (0x3c8);
|
||||
grub_inb (0x3c6);
|
||||
grub_inb (0x3c6);
|
||||
grub_inb (0x3c6);
|
||||
grub_inb (0x3c6);
|
||||
grub_outb (data, 0x3c6);
|
||||
}
|
||||
|
||||
static grub_uint8_t
|
||||
read_hidden_dac (void)
|
||||
{
|
||||
grub_inb (0x3c8);
|
||||
grub_inb (0x3c6);
|
||||
grub_inb (0x3c6);
|
||||
grub_inb (0x3c6);
|
||||
grub_inb (0x3c6);
|
||||
return grub_inb (0x3c6);
|
||||
}
|
||||
|
||||
struct saved_state
|
||||
{
|
||||
grub_uint8_t cr[CIRRUS_CR_MAX];
|
||||
grub_uint8_t gr[CIRRUS_GR_MAX];
|
||||
grub_uint8_t sr[CIRRUS_SR_MAX];
|
||||
grub_uint8_t hidden_dac;
|
||||
/* We need to preserve VGA font and VGA text. */
|
||||
grub_uint8_t vram[32 * 4 * 256];
|
||||
};
|
||||
|
||||
static struct saved_state initial_state;
|
||||
static int state_saved = 0;
|
||||
|
||||
static void
|
||||
save_state (struct saved_state *st)
|
||||
{
|
||||
unsigned i;
|
||||
for (i = 0; i < ARRAY_SIZE (st->cr); i++)
|
||||
st->cr[i] = cr_read (i);
|
||||
for (i = 0; i < ARRAY_SIZE (st->sr); i++)
|
||||
st->sr[i] = sr_read (i);
|
||||
for (i = 0; i < ARRAY_SIZE (st->gr); i++)
|
||||
st->gr[i] = gr_read (i);
|
||||
st->hidden_dac = read_hidden_dac ();
|
||||
sr_write (CIRRUS_SR_MEMORY_MODE_CHAIN4, CIRRUS_SR_MEMORY_MODE);
|
||||
grub_memcpy (st->vram, framebuffer.ptr, sizeof (st->vram));
|
||||
}
|
||||
|
||||
static void
|
||||
restore_state (struct saved_state *st)
|
||||
{
|
||||
unsigned i;
|
||||
sr_write (CIRRUS_SR_MEMORY_MODE_CHAIN4, CIRRUS_SR_MEMORY_MODE);
|
||||
grub_memcpy (framebuffer.ptr, st->vram, sizeof (st->vram));
|
||||
for (i = 0; i < ARRAY_SIZE (st->cr); i++)
|
||||
cr_write (st->cr[i], i);
|
||||
for (i = 0; i < ARRAY_SIZE (st->sr); i++)
|
||||
sr_write (st->sr[i], i);
|
||||
for (i = 0; i < ARRAY_SIZE (st->gr); i++)
|
||||
gr_write (st->gr[i], i);
|
||||
write_hidden_dac (st->hidden_dac);
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_cirrus_video_init (void)
|
||||
{
|
||||
/* Reset frame buffer. */
|
||||
grub_memset (&framebuffer, 0, sizeof(framebuffer));
|
||||
|
||||
return grub_video_fb_init ();
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_cirrus_video_fini (void)
|
||||
{
|
||||
if (framebuffer.mapped)
|
||||
grub_pci_device_unmap_range (framebuffer.dev, framebuffer.ptr,
|
||||
CIRRUS_APERTURE_SIZE);
|
||||
|
||||
if (state_saved)
|
||||
{
|
||||
restore_state (&initial_state);
|
||||
state_saved = 0;
|
||||
}
|
||||
|
||||
return grub_video_fb_fini ();
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_cirrus_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;
|
||||
int pitch, bytes_per_pixel;
|
||||
|
||||
auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid __attribute__ ((unused)));
|
||||
int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid)
|
||||
{
|
||||
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) != 0x0300 || pciid != 0x00b81013)
|
||||
return 0;
|
||||
|
||||
found = 1;
|
||||
|
||||
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
|
||||
framebuffer.base = grub_pci_read (addr) & GRUB_PCI_ADDR_MEM_MASK;
|
||||
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)
|
||||
>> GRUB_VIDEO_MODE_TYPE_DEPTH_POS;
|
||||
|
||||
if (width == 0 || height == 0)
|
||||
{
|
||||
width = 800;
|
||||
height = 600;
|
||||
}
|
||||
|
||||
if (width & (CIRRUS_WIDTH_DIVISOR - 1))
|
||||
return grub_error (GRUB_ERR_IO,
|
||||
"screen width must be a multiple of %d",
|
||||
CIRRUS_WIDTH_DIVISOR);
|
||||
|
||||
if (width > CIRRUS_MAX_WIDTH)
|
||||
return grub_error (GRUB_ERR_IO,
|
||||
"screen width must be at most %d", CIRRUS_MAX_WIDTH);
|
||||
|
||||
if (height > CIRRUS_MAX_HEIGHT)
|
||||
return grub_error (GRUB_ERR_IO,
|
||||
"screen height must be at most %d", CIRRUS_MAX_HEIGHT);
|
||||
|
||||
if (depth == 0)
|
||||
depth = 24;
|
||||
|
||||
if (depth != 32 && depth != 24 && depth != 16 && depth != 15)
|
||||
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
|
||||
"only 32, 24, 16 and 15-bit bpp are supported");
|
||||
|
||||
bytes_per_pixel = (depth + 7) / 8;
|
||||
pitch = width * bytes_per_pixel;
|
||||
|
||||
if (pitch > CIRRUS_MAX_PITCH)
|
||||
return grub_error (GRUB_ERR_IO,
|
||||
"screen width must be at most %d at bitdepth %d",
|
||||
CIRRUS_MAX_PITCH / bytes_per_pixel, depth);
|
||||
|
||||
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 */
|
||||
}
|
||||
|
||||
/* We can safely discard volatile attribute. */
|
||||
framebuffer.ptr = (void *) grub_pci_device_map_range (framebuffer.dev,
|
||||
framebuffer.base,
|
||||
CIRRUS_APERTURE_SIZE);
|
||||
framebuffer.mapped = 1;
|
||||
|
||||
if (!state_saved)
|
||||
{
|
||||
save_state (&initial_state);
|
||||
state_saved = 1;
|
||||
}
|
||||
|
||||
{
|
||||
int pitch_reg, overflow_reg = 0, line_compare = 0x3ff;
|
||||
grub_uint8_t sr_ext = 0;
|
||||
|
||||
pitch_reg = pitch / CIRRUS_WIDTH_DIVISOR;
|
||||
|
||||
gr_write (CIRRUS_GR_MODE_256_COLOR | CIRRUS_GR_MODE_READ_MODE1,
|
||||
CIRRUS_GR_MODE);
|
||||
gr_write (CIRRUS_GR_GR6_GRAPHICS_MODE, CIRRUS_GR_GR6);
|
||||
|
||||
sr_write (CIRRUS_SR_MEMORY_MODE_NORMAL, CIRRUS_SR_MEMORY_MODE);
|
||||
|
||||
/* Disable CR0-7 write protection. */
|
||||
cr_write (0, CIRRUS_CR_VSYNC_END);
|
||||
|
||||
cr_write (width / CIRRUS_WIDTH_DIVISOR - 1, CIRRUS_CR_WIDTH);
|
||||
cr_write ((height - 1) & 0xff, CIRRUS_CR_HEIGHT);
|
||||
overflow_reg |= (((height - 1) >> CIRRUS_CR_OVERFLOW_HEIGHT1_SHIFT) &
|
||||
CIRRUS_CR_OVERFLOW_HEIGHT1_MASK)
|
||||
| (((height - 1) >> CIRRUS_CR_OVERFLOW_HEIGHT2_SHIFT) &
|
||||
CIRRUS_CR_OVERFLOW_HEIGHT2_MASK);
|
||||
|
||||
cr_write (pitch_reg & 0xff, CIRRUS_CR_PITCH);
|
||||
|
||||
cr_write (line_compare & 0xff, CIRRUS_CR_LINE_COMPARE);
|
||||
overflow_reg |= (line_compare >> CIRRUS_CR_OVERFLOW_LINE_COMPARE_SHIFT)
|
||||
& CIRRUS_CR_OVERFLOW_LINE_COMPARE_MASK;
|
||||
|
||||
cr_write (overflow_reg, CIRRUS_CR_OVERFLOW);
|
||||
|
||||
cr_write ((pitch_reg >> CIRRUS_CR_EXTENDED_DISPLAY_PITCH_SHIFT)
|
||||
& CIRRUS_CR_EXTENDED_DISPLAY_PITCH_MASK,
|
||||
CIRRUS_CR_EXTENDED_DISPLAY);
|
||||
|
||||
cr_write ((line_compare >> CIRRUS_CR_CELL_HEIGHT_LINE_COMPARE_SHIFT)
|
||||
& CIRRUS_CR_CELL_HEIGHT_LINE_COMPARE_MASK, CIRRUS_CR_CELL_HEIGHT);
|
||||
|
||||
cr_write (CIRRUS_CR_MODE_TIMING_ENABLE | CIRRUS_CR_MODE_BYTE_MODE
|
||||
| CIRRUS_CR_MODE_NO_HERCULES | CIRRUS_CR_MODE_NO_CGA,
|
||||
CIRRUS_CR_MODE);
|
||||
|
||||
sr_ext = CIRRUS_SR_EXTENDED_MODE_LFB_ENABLE
|
||||
| CIRRUS_SR_EXTENDED_MODE_ENABLE_EXT;
|
||||
switch (depth)
|
||||
{
|
||||
case 32:
|
||||
sr_ext |= CIRRUS_SR_EXTENDED_MODE_32BPP;
|
||||
break;
|
||||
case 24:
|
||||
sr_ext |= CIRRUS_SR_EXTENDED_MODE_24BPP;
|
||||
break;
|
||||
case 16:
|
||||
case 15:
|
||||
sr_ext |= CIRRUS_SR_EXTENDED_MODE_16BPP;
|
||||
break;
|
||||
}
|
||||
sr_write (sr_ext, CIRRUS_SR_EXTENDED_MODE);
|
||||
write_hidden_dac (depth == 16);
|
||||
}
|
||||
|
||||
/* Fill mode info details. */
|
||||
framebuffer.mode_info.width = width;
|
||||
framebuffer.mode_info.height = height;
|
||||
framebuffer.mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
|
||||
framebuffer.mode_info.bpp = depth;
|
||||
framebuffer.mode_info.bytes_per_pixel = bytes_per_pixel;
|
||||
framebuffer.mode_info.pitch = pitch;
|
||||
framebuffer.mode_info.number_of_colors = 256;
|
||||
framebuffer.mode_info.reserved_mask_size = 0;
|
||||
framebuffer.mode_info.reserved_field_pos = 0;
|
||||
|
||||
switch (depth)
|
||||
{
|
||||
case 16:
|
||||
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;
|
||||
break;
|
||||
|
||||
case 15:
|
||||
framebuffer.mode_info.red_mask_size = 5;
|
||||
framebuffer.mode_info.red_field_pos = 10;
|
||||
framebuffer.mode_info.green_mask_size = 5;
|
||||
framebuffer.mode_info.green_field_pos = 5;
|
||||
framebuffer.mode_info.blue_mask_size = 5;
|
||||
framebuffer.mode_info.blue_field_pos = 0;
|
||||
break;
|
||||
|
||||
case 32:
|
||||
framebuffer.mode_info.reserved_mask_size = 8;
|
||||
framebuffer.mode_info.reserved_field_pos = 24;
|
||||
|
||||
case 24:
|
||||
framebuffer.mode_info.red_mask_size = 8;
|
||||
framebuffer.mode_info.red_field_pos = 16;
|
||||
framebuffer.mode_info.green_mask_size = 8;
|
||||
framebuffer.mode_info.green_field_pos = 8;
|
||||
framebuffer.mode_info.blue_mask_size = 8;
|
||||
framebuffer.mode_info.blue_field_pos = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
framebuffer.mode_info.blit_format = grub_video_get_blit_format (&framebuffer.mode_info);
|
||||
|
||||
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);
|
||||
return err;
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_cirrus_set_palette (unsigned int start, unsigned int count,
|
||||
struct grub_video_palette_data *palette_data)
|
||||
{
|
||||
/* if (framebuffer.index_color_mode) */
|
||||
{
|
||||
/* TODO: Implement setting indexed color mode palette to hardware. */
|
||||
}
|
||||
|
||||
/* Then set color to emulated palette. */
|
||||
return grub_video_fb_set_palette (start, count, palette_data);
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_cirrus_swap_buffers (void)
|
||||
{
|
||||
/* TODO: Implement buffer swapping. */
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_cirrus_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_cirrus_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_cirrus_adapter =
|
||||
{
|
||||
.name = "Cirrus CLGD 5446 PCI Video Driver",
|
||||
.id = GRUB_VIDEO_DRIVER_CIRRUS,
|
||||
|
||||
.init = grub_video_cirrus_video_init,
|
||||
.fini = grub_video_cirrus_video_fini,
|
||||
.setup = grub_video_cirrus_setup,
|
||||
.get_info = grub_video_fb_get_info,
|
||||
.get_info_and_fini = grub_video_cirrus_get_info_and_fini,
|
||||
.set_palette = grub_video_cirrus_set_palette,
|
||||
.get_palette = grub_video_fb_get_palette,
|
||||
.set_viewport = grub_video_fb_set_viewport,
|
||||
.get_viewport = grub_video_fb_get_viewport,
|
||||
.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_cirrus_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_cirrus_set_active_render_target,
|
||||
.get_active_render_target = grub_video_fb_get_active_render_target,
|
||||
|
||||
.next = 0
|
||||
};
|
||||
|
||||
GRUB_MOD_INIT(video_cirrus)
|
||||
{
|
||||
grub_video_register (&grub_video_cirrus_adapter);
|
||||
}
|
||||
|
||||
GRUB_MOD_FINI(video_cirrus)
|
||||
{
|
||||
grub_video_unregister (&grub_video_cirrus_adapter);
|
||||
}
|
||||
Loading…
Reference in a new issue