Add a driver intended to cope with any VESA-compatible x86 graphics adapter. It will not support ROMs which use OpenFirmware (Forth) since there is no support for that in U-Boot. This means that MAC OS cards will not work.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/video/Makefile | 1 + drivers/video/vesa_fb.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 65 insertions(+) create mode 100644 drivers/video/vesa_fb.c
diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 975d136..91c954f 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -46,6 +46,7 @@ obj-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o videomodes.o obj-$(CONFIG_VIDEO_SUNXI) += sunxi_display.o obj-$(CONFIG_VIDEO_TEGRA) += tegra.o obj-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o +obj-$(CONFIG_VIDEO_VESA) += vesa_fb.o obj-$(CONFIG_VIDEO_X86) += x86_fb.o obj-$(CONFIG_FORMIKE) += formike.o obj-$(CONFIG_AM335X_LCD) += am335x-fb.o diff --git a/drivers/video/vesa_fb.c b/drivers/video/vesa_fb.c new file mode 100644 index 0000000..3dacafd --- /dev/null +++ b/drivers/video/vesa_fb.c @@ -0,0 +1,64 @@ +/* + * + * Vesa frame buffer driver for x86 + * + * Copyright (C) 2014 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <pci_rom.h> +#include <video_fb.h> +#include <vbe.h> + +/* + * The Graphic Device + */ +GraphicDevice ctfb; + +/* Devices to allow - only the last one works fully */ +struct pci_device_id vesa_video_ids[] = { + { .vendor = 0x102b, .device = 0x0525 }, + { .vendor = 0x1002, .device = 0x5159 }, + { .vendor = 0x1002, .device = 0x4752 }, + { .vendor = 0x1002, .device = 0x5452 }, + {}, +}; + +void *video_hw_init(void) +{ + GraphicDevice *gdev = &ctfb; + int bits_per_pixel; + pci_dev_t dev; + int ret; + + printf("Video: "); + if (vbe_get_video_info(gdev)) { + /* TODO: Should we look these up by class? */ + dev = pci_find_devices(vesa_video_ids, 0); + if (dev == -1) { + printf("no card detected\n"); + return NULL; + } + printf("bdf %x\n", dev); + ret = pci_run_vga_bios(dev, NULL, true); + if (ret) { + printf("failed to run video BIOS: %d\n", ret); + return NULL; + } + } + + if (vbe_get_video_info(gdev)) { + printf("No video mode configured\n"); + return NULL; + } + + bits_per_pixel = gdev->gdfBytesPP * 8; + sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY, + bits_per_pixel); + printf("%s\n", gdev->modeIdent); + debug("Framex buffer at %x\n", gdev->pciBase); + + return (void *)gdev; +}