+++ /dev/null
-/*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 2005,2006,2007,2008,2009 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/efi/api.h>
-#include <grub/efi/efi.h>
-#include <grub/efi/uga_draw.h>
-#include <grub/pci.h>
-
-GRUB_MOD_LICENSE ("GPLv3+");
-
-static grub_guid_t uga_draw_guid = GRUB_EFI_UGA_DRAW_GUID;
-static struct grub_efi_uga_draw_protocol *uga;
-static grub_uint64_t uga_fb;
-static grub_uint32_t uga_pitch;
-
-static struct
-{
- struct grub_video_mode_info mode_info;
- struct grub_video_render_target *render_target;
- grub_uint8_t *ptr;
-} framebuffer;
-
-#define RGB_MASK 0xffffff
-#define RGB_MAGIC 0x121314
-#define LINE_MIN 800
-#define LINE_MAX 4096
-#define FBTEST_STEP (0x10000 >> 2)
-#define FBTEST_COUNT 8
-
-static int
-find_line_len (grub_uint64_t *fb_base, grub_uint32_t *line_len)
-{
- grub_uint32_t *base = (grub_uint32_t *) (grub_addr_t) *fb_base;
- int i;
-
- for (i = 0; i < FBTEST_COUNT; i++, base += FBTEST_STEP)
- {
- if ((*base & RGB_MASK) == RGB_MAGIC)
- {
- int j;
-
- for (j = LINE_MIN; j <= LINE_MAX; j++)
- {
- if ((base[j] & RGB_MASK) == RGB_MAGIC)
- {
- *fb_base = (grub_uint64_t) (grub_addr_t) base;
- *line_len = j << 2;
-
- return 1;
- }
- }
-
- break;
- }
- }
-
- return 0;
-}
-
-/* Context for find_framebuf. */
-struct find_framebuf_ctx
-{
- grub_uint64_t *fb_base;
- grub_uint32_t *line_len;
- int found;
-};
-
-/* Helper for find_framebuf. */
-static int
-find_card (grub_pci_device_t dev, grub_pci_id_t pciid, void *data)
-{
- struct find_framebuf_ctx *ctx = data;
- grub_pci_address_t addr, rcaddr;
- grub_uint32_t subclass;
-
- addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
- subclass = (grub_pci_read (addr) >> 16) & 0xffff;
-
- if (subclass != GRUB_PCI_CLASS_DISPLAY_VGA)
- return 0;
-
- /* Enable MEM address spaces */
- rcaddr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
- grub_pci_write_word (rcaddr, grub_pci_read_word (rcaddr) | GRUB_PCI_COMMAND_MEM_ENABLED);
-
- {
- int i;
-
- grub_dprintf ("video", "Display controller: %d:%d.%d\nDevice id: %x\n",
- grub_pci_get_bus (dev), grub_pci_get_device (dev),
- grub_pci_get_function (dev), pciid);
- addr += 8;
- for (i = 0; i < 6; i++, addr += 4)
- {
- grub_uint32_t old_bar1, old_bar2, type;
- grub_uint64_t base64;
-
- old_bar1 = grub_pci_read (addr);
- if ((! old_bar1) || (old_bar1 & GRUB_PCI_ADDR_SPACE_IO))
- continue;
-
- type = old_bar1 & GRUB_PCI_ADDR_MEM_TYPE_MASK;
- if (type == GRUB_PCI_ADDR_MEM_TYPE_64)
- {
- if (i == 5)
- break;
-
- i++;
- addr += 4;
- old_bar2 = grub_pci_read (addr);
- }
- else
- old_bar2 = 0;
-
- base64 = old_bar2;
- base64 <<= 32;
- base64 |= (old_bar1 & GRUB_PCI_ADDR_MEM_MASK);
-
- grub_dprintf ("video", "%s(%d): 0x%" PRIxGRUB_UINT64_T "\n",
- ((old_bar1 & GRUB_PCI_ADDR_MEM_PREFETCH) ?
- "VMEM" : "MMIO"), type == GRUB_PCI_ADDR_MEM_TYPE_64 ? i - 1 : i,
- base64);
-
-#if GRUB_CPU_SIZEOF_VOID_P == 4
- if (old_bar2)
- continue;
-#endif
-
- if ((old_bar1 & GRUB_PCI_ADDR_MEM_PREFETCH) && (! ctx->found))
- {
- *ctx->fb_base = base64;
- if (find_line_len (ctx->fb_base, ctx->line_len))
- ctx->found++;
- }
- }
- }
-
- return ctx->found;
-}
-
-static int
-find_framebuf (grub_uint64_t *fb_base, grub_uint32_t *line_len)
-{
- struct find_framebuf_ctx ctx = {
- .fb_base = fb_base,
- .line_len = line_len,
- .found = 0
- };
-
- grub_pci_iterate (find_card, &ctx);
- return ctx.found;
-}
-
-static int
-check_protocol (void)
-{
- grub_efi_uga_draw_protocol_t *c;
-
- c = grub_efi_locate_protocol (&uga_draw_guid, 0);
- if (c)
- {
- grub_uint32_t width, height, depth, rate, pixel;
- int ret;
-
- if (c->get_mode (c, &width, &height, &depth, &rate))
- return 0;
-
- grub_efi_set_text_mode (0);
- pixel = RGB_MAGIC;
- c->blt (c, (struct grub_efi_uga_pixel *) &pixel,
- GRUB_EFI_UGA_VIDEO_FILL, 0, 0, 0, 0, 1, height, 0);
- ret = find_framebuf (&uga_fb, &uga_pitch);
- grub_efi_set_text_mode (1);
-
- if (ret)
- {
- uga = c;
- return 1;
- }
- }
-
- return 0;
-}
-
-static grub_err_t
-grub_video_uga_init (void)
-{
- grub_memset (&framebuffer, 0, sizeof(framebuffer));
- return grub_video_fb_init ();
-}
-
-static grub_err_t
-grub_video_uga_fini (void)
-{
- return grub_video_fb_fini ();
-}
-
-static grub_err_t
-grub_video_uga_setup (unsigned int width, unsigned int height,
- unsigned int mode_type,
- unsigned int mode_mask __attribute__ ((unused)))
-{
- unsigned int depth;
- int found = 0;
-
- depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
- >> GRUB_VIDEO_MODE_TYPE_DEPTH_POS;
-
- {
- grub_uint32_t w;
- grub_uint32_t h;
- grub_uint32_t d;
- grub_uint32_t r;
-
- if ((! uga->get_mode (uga, &w, &h, &d, &r)) &&
- ((! width) || (width == w)) &&
- ((! height) || (height == h)) &&
- ((! depth) || (depth == d)))
- {
- framebuffer.mode_info.width = w;
- framebuffer.mode_info.height = h;
- framebuffer.mode_info.pitch = uga_pitch;
- framebuffer.ptr = (grub_uint8_t *) (grub_addr_t) uga_fb;
-
- found = 1;
- }
- }
-
- if (found)
- {
- grub_err_t err;
-
- framebuffer.mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
- framebuffer.mode_info.bpp = 32;
- framebuffer.mode_info.bytes_per_pixel = 4;
- framebuffer.mode_info.number_of_colors = 256;
- 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;
- framebuffer.mode_info.reserved_mask_size = 8;
- framebuffer.mode_info.reserved_field_pos = 24;
-
- 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;
-
- err = grub_video_fb_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS,
- grub_video_fbstd_colors);
-
- return err;
- }
-
- return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "no matching mode found");
-}
-
-static grub_err_t
-grub_video_uga_swap_buffers (void)
-{
- /* TODO: Implement buffer swapping. */
- return GRUB_ERR_NONE;
-}
-
-static grub_err_t
-grub_video_uga_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_uga_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_uga_adapter =
- {
- .name = "EFI UGA driver",
- .id = GRUB_VIDEO_DRIVER_EFI_UGA,
-
- .prio = GRUB_VIDEO_ADAPTER_PRIO_FIRMWARE_DIRTY,
-
- .init = grub_video_uga_init,
- .fini = grub_video_uga_fini,
- .setup = grub_video_uga_setup,
- .get_info = grub_video_fb_get_info,
- .get_info_and_fini = grub_video_uga_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_uga_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_uga_set_active_render_target,
- .get_active_render_target = grub_video_fb_get_active_render_target,
- };
-
-GRUB_MOD_INIT(efi_uga)
-{
- if (check_protocol ())
- grub_video_register (&grub_video_uga_adapter);
-}
-
-GRUB_MOD_FINI(efi_uga)
-{
- if (uga)
- grub_video_unregister (&grub_video_uga_adapter);
-}
+++ /dev/null
-/* console_control.h - definitions of the console control protocol */
-/*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 2006,2007 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/>.
- */
-
-/* The console control protocol is not a part of the EFI spec,
- but defined in Intel's Sample Implementation. */
-
-#ifndef GRUB_EFI_CONSOLE_CONTROL_HEADER
-#define GRUB_EFI_CONSOLE_CONTROL_HEADER 1
-
-#include <grub/efi/api.h>
-
-#define GRUB_EFI_CONSOLE_CONTROL_GUID \
- { 0xf42f7782, 0x12e, 0x4c12, \
- { 0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21 } \
- }
-
-enum grub_efi_screen_mode
- {
- GRUB_EFI_SCREEN_TEXT,
- GRUB_EFI_SCREEN_GRAPHICS,
- GRUB_EFI_SCREEN_TEXT_MAX_VALUE
- };
-typedef enum grub_efi_screen_mode grub_efi_screen_mode_t;
-
-struct grub_efi_console_control_protocol
-{
- grub_efi_status_t
- (__grub_efi_api *get_mode) (struct grub_efi_console_control_protocol *this,
- grub_efi_screen_mode_t *mode,
- grub_efi_boolean_t *uga_exists,
- grub_efi_boolean_t *std_in_locked);
-
- grub_efi_status_t
- (__grub_efi_api *set_mode) (struct grub_efi_console_control_protocol *this,
- grub_efi_screen_mode_t mode);
-
- grub_efi_status_t
- (__grub_efi_api *lock_std_in) (struct grub_efi_console_control_protocol *this,
- grub_efi_char16_t *password);
-};
-typedef struct grub_efi_console_control_protocol grub_efi_console_control_protocol_t;
-
-#endif /* ! GRUB_EFI_CONSOLE_CONTROL_HEADER */
+++ /dev/null
-/* uga_draw.h - definitions of the uga draw protocol */
-/*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 2008 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/>.
- */
-
-/* The console control protocol is not a part of the EFI spec,
- but defined in Intel's Sample Implementation. */
-
-#ifndef GRUB_EFI_UGA_DRAW_HEADER
-#define GRUB_EFI_UGA_DRAW_HEADER 1
-
-#define GRUB_EFI_UGA_DRAW_GUID \
- { 0x982c298b, 0xf4fa, 0x41cb, { 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 }}
-
-enum grub_efi_uga_blt_operation
-{
- GRUB_EFI_UGA_VIDEO_FILL,
- GRUB_EFI_UGA_VIDEO_TO_BLT,
- GRUB_EFI_UGA_BLT_TO_VIDEO,
- GRUB_EFI_UGA_VIDEO_TO_VIDEO,
- GRUB_EFI_UGA_BLT_MAX
-};
-
-struct grub_efi_uga_pixel
-{
- grub_uint8_t Blue;
- grub_uint8_t Green;
- grub_uint8_t Red;
- grub_uint8_t Reserved;
-};
-
-struct grub_efi_uga_draw_protocol
-{
- grub_efi_status_t
- (__grub_efi_api *get_mode) (struct grub_efi_uga_draw_protocol *this,
- grub_uint32_t *width,
- grub_uint32_t *height,
- grub_uint32_t *depth,
- grub_uint32_t *refresh_rate);
-
- grub_efi_status_t
- (__grub_efi_api *set_mode) (struct grub_efi_uga_draw_protocol *this,
- grub_uint32_t width,
- grub_uint32_t height,
- grub_uint32_t depth,
- grub_uint32_t refresh_rate);
-
- grub_efi_status_t
- (__grub_efi_api *blt) (struct grub_efi_uga_draw_protocol *this,
- struct grub_efi_uga_pixel *blt_buffer,
- enum grub_efi_uga_blt_operation blt_operation,
- grub_efi_uintn_t src_x,
- grub_efi_uintn_t src_y,
- grub_efi_uintn_t dest_x,
- grub_efi_uintn_t dest_y,
- grub_efi_uintn_t width,
- grub_efi_uintn_t height,
- grub_efi_uintn_t delta);
-};
-typedef struct grub_efi_uga_draw_protocol grub_efi_uga_draw_protocol_t;
-
-#endif /* ! GRUB_EFI_UGA_DRAW_HEADER */
projects / grub2.git / commitdiff