drivers/bios_emulator/atibios.c

9 *   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
45 *		Jason ported this file to u-boot to run the ATI video card
46 *		BIOS in u-boot.
77 		return vga_info->BIOSImage + flat - 0xc0000;  in bios_ptr()
79 		return buf + (flat - vbe_offset);  in bios_ptr()
88 	struct vesa_mode_info *vm;  in atibios_debug_mode()  local
95 	regs->e.eax = VESA_GET_INFO;  in atibios_debug_mode()
96 	regs->e.esi = buffer_seg;  in atibios_debug_mode()
97 	regs->e.edi = buffer_adr;  in atibios_debug_mode()
100 	strcpy(info->signature, "VBE2");  in atibios_debug_mode()
102 	if (regs->e.eax != 0x4f) {  in atibios_debug_mode()
103 		debug("VESA_GET_INFO: error %x\n", regs->e.eax);  in atibios_debug_mode()
104 		return -ENOSYS;  in atibios_debug_mode()
106 	debug("version %x\n", le16_to_cpu(info->version));  in atibios_debug_mode()
108 					     info->oem_string_ptr));  in atibios_debug_mode()
110 						info->vendor_name_ptr));  in atibios_debug_mode()
112 						 info->product_name_ptr));  in atibios_debug_mode()
114 					     info->product_rev_ptr));  in atibios_debug_mode()
115 	modes_bios = bios_ptr(buffer, vga_info, info->modes_ptr);  in atibios_debug_mode()
119 	debug("\nmemory %dMB\n", le16_to_cpu(info->total_memory) >> 4);  in atibios_debug_mode()
120 	size = (ptr - modes_bios) * sizeof(u16) + 2;  in atibios_debug_mode()
123 		return -ENOMEM;  in atibios_debug_mode()
126 	regs->e.eax = VESA_GET_CUR_MODE;  in atibios_debug_mode()
128 	if (regs->e.eax != 0x4f) {  in atibios_debug_mode()
129 		debug("VESA_GET_CUR_MODE: error %x\n", regs->e.eax);  in atibios_debug_mode()
130 		return -ENOSYS;  in atibios_debug_mode()
132 	debug("Current mode %x\n", regs->e.ebx);  in atibios_debug_mode()
142 		regs->e.eax = VESA_GET_MODE_INFO;  in atibios_debug_mode()
143 		regs->e.ebx = 0;  in atibios_debug_mode()
144 		regs->e.ecx = mode;  in atibios_debug_mode()
145 		regs->e.edx = 0;  in atibios_debug_mode()
146 		regs->e.esi = buffer_seg;  in atibios_debug_mode()
147 		regs->e.edi = buffer_adr;  in atibios_debug_mode()
149 		if (regs->e.eax != 0x4f) {  in atibios_debug_mode()
150 			debug("VESA_GET_MODE_INFO: error %x\n", regs->e.eax);  in atibios_debug_mode()
153 		memcpy(mode_info->mode_info_block, buffer,  in atibios_debug_mode()
155 		mode_info->valid = true;  in atibios_debug_mode()
156 		vm = &mode_info->vesa;  in atibios_debug_mode()
157 		attr = le16_to_cpu(vm->mode_attributes);  in atibios_debug_mode()
160 		      le16_to_cpu(vm->x_resolution),  in atibios_debug_mode()
161 		      le16_to_cpu(vm->y_resolution),  in atibios_debug_mode()
162 		      vm->bits_per_pixel, vm->memory_model,  in atibios_debug_mode()
166 		      vm->red_mask_pos, vm->green_mask_pos, vm->blue_mask_pos,  in atibios_debug_mode()
167 		      vm->red_mask_size, vm->green_mask_size,  in atibios_debug_mode()
168 		      vm->blue_mask_size);  in atibios_debug_mode()
180 	struct vesa_mode_info *vm;  in atibios_set_vesa_mode()  local
183 	regs->e.eax = VESA_SET_MODE;  in atibios_set_vesa_mode()
184 	regs->e.ebx = vesa_mode;  in atibios_set_vesa_mode()
186 	regs->e.ebx |= (1 << 14) | (1 << 15);  in atibios_set_vesa_mode()
188 	if (regs->e.eax != 0x4f) {  in atibios_set_vesa_mode()
189 		debug("VESA_SET_MODE: error %x\n", regs->e.eax);  in atibios_set_vesa_mode()
190 		return -ENOSYS;  in atibios_set_vesa_mode()
195 	regs->e.eax = VESA_GET_MODE_INFO;  in atibios_set_vesa_mode()
196 	regs->e.ecx = vesa_mode;  in atibios_set_vesa_mode()
197 	regs->e.esi = buffer_seg;  in atibios_set_vesa_mode()
198 	regs->e.edi = buffer_adr;  in atibios_set_vesa_mode()
200 	if (regs->e.eax != 0x4f) {  in atibios_set_vesa_mode()
201 		debug("VESA_GET_MODE_INFO: error %x\n", regs->e.eax);  in atibios_set_vesa_mode()
202 		return -ENOSYS;  in atibios_set_vesa_mode()
205 	memcpy(mode_info->mode_info_block, buffer,  in atibios_set_vesa_mode()
207 	mode_info->valid = true;  in atibios_set_vesa_mode()
208 	mode_info->video_mode = vesa_mode;  in atibios_set_vesa_mode()
209 	vm = &mode_info->vesa;  in atibios_set_vesa_mode()
210 	vm->x_resolution = le16_to_cpu(vm->x_resolution);  in atibios_set_vesa_mode()
211 	vm->y_resolution = le16_to_cpu(vm->y_resolution);  in atibios_set_vesa_mode()
212 	vm->bytes_per_scanline = le16_to_cpu(vm->bytes_per_scanline);  in atibios_set_vesa_mode()
213 	vm->phys_base_ptr = le32_to_cpu(vm->phys_base_ptr);  in atibios_set_vesa_mode()
214 	vm->mode_attributes = le16_to_cpu(vm->mode_attributes);  in atibios_set_vesa_mode()
223 pcidev	- PCI device info for the video card on the bus to boot
224 vga_info - BIOS emulator VGA info structure
272 	if (vesa_mode != -1)  in PCI_doBIOSPOST()
279 pcidev	- PCI device info for the video card on the bus
280 bar	- Place to return the base address register offset to use
283 The address to use to map the secondary BIOS (AGP devices)
289 to map the BIOS for the device into. We use a mapping that is already
291 by any PCI->PCI or AGP->PCI bridge that may be present.
333 Some non-x86 Linux kernels map PCI relocateable I/O to values that
335 the offset for the I/O ports to be a maximum of 16-bits. Ideally
336 someone should fix the kernel to map the I/O ports for VGA compatible
339 64K of the I/O space - a total of more than 256 cards would be
364 pcidev	- PCI device info for the video card on the bus
418 	/*Change the PCI BAR registers to map it onto the bus.*/  in PCI_mapBIOSImage()
425 	/*Change the PCI BAR registers to map it onto the bus.*/  in PCI_mapBIOSImage()
443 pcidev	- PCI device info for the video card on the bus
470 pcidev	- PCI device info for the video card on the bus to boot
471 VGAInfo - BIOS emulator VGA info structure
507 			printf("videoboot: Video ROM failed to map!\n");  in PCI_postController()
525 	vga_info->function = PCI_FUNC(bdf);  in PCI_postController()
526 	vga_info->device = PCI_DEV(bdf);  in PCI_postController()
527 	vga_info->bus = PCI_BUS(bdf);  in PCI_postController()
529 	vga_info->function = PCI_FUNC(pcidev);  in PCI_postController()
530 	vga_info->device = PCI_DEV(pcidev);  in PCI_postController()
531 	vga_info->bus = PCI_BUS(pcidev);  in PCI_postController()
533 	vga_info->pcidev = pcidev;  in PCI_postController()
534 	vga_info->BIOSImage = copy_of_bios;  in PCI_postController()
535 	vga_info->BIOSImageLen = bios_image_len;  in PCI_postController()
546 	vga_info->BIOSImageLen = copy_of_bios[2] * 512;  in PCI_postController()
569 		return -ENOMEM;  in biosemu_setup()
596 		return -EINVAL;  in biosemu_run()
605 		if (vga_info->BIOSImage &&  in biosemu_run()
606 		    (ulong)(vga_info->BIOSImage) != 0xc0000)  in biosemu_run()
607 			free(vga_info->BIOSImage);  in biosemu_run()
616 pcidev	    - PCI device info for the video card on the bus to boot
617 pVGAInfo    - Place to return VGA info structure is requested
618 cleanUp	    - true to clean up on exit, false to leave emulator active
637 	ret = biosemu_run(pcidev, NULL, 0, VGAInfo, clean_up, -1, NULL);  in BootVideoCardBIOS()