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Kevin O'Connor714325c2008-11-01 20:32:27 -04001// Option rom scanning code.
2//
3// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
4// Copyright (C) 2002 MandrakeSoft S.A.
5//
Kevin O'Connorb1b7c2a2009-01-15 20:52:58 -05006// This file may be distributed under the terms of the GNU LGPLv3 license.
Kevin O'Connor714325c2008-11-01 20:32:27 -04007
8#include "bregs.h" // struct bregs
Kevin O'Connor35ae7262009-01-19 15:44:44 -05009#include "farptr.h" // FLATPTR_TO_SEG
Kevin O'Connorc659fde2008-12-28 23:43:20 -050010#include "config.h" // CONFIG_*
Kevin O'Connor714325c2008-11-01 20:32:27 -040011#include "util.h" // dprintf
Kevin O'Connor51fd0a12009-09-12 13:20:14 -040012#include "pci.h" // foreachpci
Kevin O'Connorceea03c2008-11-08 21:36:35 -050013#include "pci_regs.h" // PCI_ROM_ADDRESS
14#include "pci_ids.h" // PCI_CLASS_DISPLAY_VGA
Kevin O'Connorc659fde2008-12-28 23:43:20 -050015#include "boot.h" // IPL
Kevin O'Connorceea03c2008-11-08 21:36:35 -050016
17
18/****************************************************************
19 * Definitions
20 ****************************************************************/
Kevin O'Connor714325c2008-11-01 20:32:27 -040021
Kevin O'Connor714325c2008-11-01 20:32:27 -040022struct rom_header {
23 u16 signature;
24 u8 size;
25 u8 initVector[4];
26 u8 reserved[17];
27 u16 pcioffset;
28 u16 pnpoffset;
29} PACKED;
30
31struct pci_data {
32 u32 signature;
33 u16 vendor;
34 u16 device;
35 u16 vitaldata;
36 u16 dlen;
37 u8 drevision;
38 u8 class_lo;
39 u16 class_hi;
40 u16 ilen;
41 u16 irevision;
42 u8 type;
43 u8 indicator;
44 u16 reserved;
45} PACKED;
46
47struct pnp_data {
48 u32 signature;
49 u8 revision;
50 u8 len;
51 u16 nextoffset;
52 u8 reserved_08;
53 u8 checksum;
54 u32 devid;
55 u16 manufacturer;
56 u16 productname;
57 u8 type_lo;
58 u16 type_hi;
59 u8 dev_flags;
60 u16 bcv;
61 u16 dv;
62 u16 bev;
63 u16 reserved_1c;
64 u16 staticresource;
65} PACKED;
66
Kevin O'Connorceea03c2008-11-08 21:36:35 -050067#define OPTION_ROM_SIGNATURE 0xaa55
68#define OPTION_ROM_ALIGN 2048
69#define OPTION_ROM_INITVECTOR offsetof(struct rom_header, initVector[0])
Kevin O'Connor5a1b8282008-11-29 20:39:06 -050070#define PCI_ROM_SIGNATURE 0x52494350 // PCIR
Kevin O'Connor62eea672008-12-06 11:57:45 -050071#define PCIROM_CODETYPE_X86 0
Kevin O'Connorceea03c2008-11-08 21:36:35 -050072
Kevin O'Connore7739302009-07-26 19:16:09 -040073// The end of the last deployed rom.
74u32 RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050075
76
77/****************************************************************
78 * Helper functions
79 ****************************************************************/
80
Kevin O'Connor714325c2008-11-01 20:32:27 -040081// Execute a given option rom.
82static void
Kevin O'Connore8f00ee2009-07-04 04:04:36 -040083__callrom(struct rom_header *rom, u16 offset, u16 bdf)
Kevin O'Connor714325c2008-11-01 20:32:27 -040084{
Kevin O'Connor35ae7262009-01-19 15:44:44 -050085 u16 seg = FLATPTR_TO_SEG(rom);
Kevin O'Connor91b53a72009-05-05 22:52:09 -040086 dprintf(1, "Running option rom at %04x:%04x\n", seg, offset);
Kevin O'Connor714325c2008-11-01 20:32:27 -040087
88 struct bregs br;
89 memset(&br, 0, sizeof(br));
Kevin O'Connorceea03c2008-11-08 21:36:35 -050090 br.ax = bdf;
Kevin O'Connor714325c2008-11-01 20:32:27 -040091 br.bx = 0xffff;
92 br.dx = 0xffff;
93 br.es = SEG_BIOS;
Kevin O'Connor0c3068d2008-12-21 17:51:36 -050094 br.di = get_pnp_offset();
Kevin O'Connor9f985422009-09-09 11:34:39 -040095 br.code = SEGOFF(seg, offset);
Kevin O'Connor6e5b4a42008-12-06 13:03:52 -050096 call16big(&br);
Kevin O'Connor714325c2008-11-01 20:32:27 -040097
98 debug_serial_setup();
Kevin O'Connor714325c2008-11-01 20:32:27 -040099}
100
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400101// Execute a given option rom at the standard entry vector.
102static void
103callrom(struct rom_header *rom, u16 bdf)
104{
105 __callrom(rom, OPTION_ROM_INITVECTOR, bdf);
106}
107
Kevin O'Connor0a924122009-02-08 19:43:47 -0500108// Execute a BCV option rom registered via add_bcv().
109void
110call_bcv(u16 seg, u16 ip)
111{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400112 __callrom(MAKE_FLATPTR(seg, 0), ip, 0);
Kevin O'Connor0a924122009-02-08 19:43:47 -0500113}
114
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500115// Verify that an option rom looks valid
116static int
117is_valid_rom(struct rom_header *rom)
118{
Kevin O'Connorc36273f2009-04-16 20:43:07 -0400119 dprintf(6, "Checking rom %p (sig %x size %d)\n"
120 , rom, rom->signature, rom->size);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500121 if (rom->signature != OPTION_ROM_SIGNATURE)
122 return 0;
Kevin O'Connor674e4602009-04-13 19:19:22 -0400123 if (! rom->size)
124 return 0;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500125 u32 len = rom->size * 512;
Kevin O'Connor94fd47e2009-02-15 15:21:10 -0500126 u8 sum = checksum(rom, len);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500127 if (sum != 0) {
128 dprintf(1, "Found option rom with bad checksum: loc=%p len=%d sum=%x\n"
129 , rom, len, sum);
130 return 0;
131 }
132 return 1;
133}
134
135// Check if a valid option rom has a pnp struct; return it if so.
136static struct pnp_data *
137get_pnp_rom(struct rom_header *rom)
138{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400139 struct pnp_data *pnp = (void*)((u8*)rom + rom->pnpoffset);
Kevin O'Connor0c3068d2008-12-21 17:51:36 -0500140 if (pnp->signature != PNP_SIGNATURE)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500141 return NULL;
142 return pnp;
143}
144
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500145// Check for multiple pnp option rom headers.
146static struct pnp_data *
147get_pnp_next(struct rom_header *rom, struct pnp_data *pnp)
148{
149 if (! pnp->nextoffset)
150 return NULL;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400151 pnp = (void*)((u8*)rom + pnp->nextoffset);
Kevin O'Connor0c3068d2008-12-21 17:51:36 -0500152 if (pnp->signature != PNP_SIGNATURE)
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500153 return NULL;
154 return pnp;
155}
156
Kevin O'Connor62eea672008-12-06 11:57:45 -0500157// Check if a valid option rom has a pci struct; return it if so.
158static struct pci_data *
159get_pci_rom(struct rom_header *rom)
160{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400161 struct pci_data *pci = (void*)((u32)rom + rom->pcioffset);
Kevin O'Connor62eea672008-12-06 11:57:45 -0500162 if (pci->signature != PCI_ROM_SIGNATURE)
163 return NULL;
164 return pci;
165}
166
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400167// Return the memory position up to which roms may be located.
168static inline u32
169max_rom()
170{
171 extern u8 code32_start[];
172 if ((u32)code32_start > BUILD_BIOS_ADDR)
173 return BUILD_BIOS_ADDR;
174 return (u32)code32_start;
175}
176
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500177// Copy a rom to its permanent location below 1MiB
178static struct rom_header *
179copy_rom(struct rom_header *rom)
180{
181 u32 romsize = rom->size * 512;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400182 if (RomEnd + romsize > max_rom()) {
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500183 // Option rom doesn't fit.
184 dprintf(1, "Option rom %p doesn't fit.\n", rom);
185 return NULL;
186 }
Kevin O'Connorc36273f2009-04-16 20:43:07 -0400187 dprintf(4, "Copying option rom (size %d) from %p to %x\n"
Kevin O'Connore7739302009-07-26 19:16:09 -0400188 , romsize, rom, RomEnd);
189 memcpy((void*)RomEnd, rom, romsize);
190 return (void*)RomEnd;
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500191}
192
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400193// Run rom init code and note rom size.
194static int
195init_optionrom(struct rom_header *rom, u16 bdf, int isvga)
196{
197 if (! is_valid_rom(rom))
198 return -1;
199
200 if (isvga || get_pnp_rom(rom))
201 // Only init vga and PnP roms here.
202 callrom(rom, bdf);
203
Kevin O'Connore7739302009-07-26 19:16:09 -0400204 RomEnd = (u32)rom + ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400205
206 return 0;
207}
208
209
210/****************************************************************
211 * Roms in CBFS
212 ****************************************************************/
213
214// Check if an option rom is at a hardcoded location or in CBFS.
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500215static struct rom_header *
Kevin O'Connor4c0c85a2009-04-11 23:31:29 -0400216lookup_hardcode(u32 vendev)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500217{
Kevin O'Connor4c0c85a2009-04-11 23:31:29 -0400218 if (OPTIONROM_VENDEV_1
219 && ((OPTIONROM_VENDEV_1 >> 16)
220 | ((OPTIONROM_VENDEV_1 & 0xffff)) << 16) == vendev)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400221 return copy_rom((void*)OPTIONROM_MEM_1);
Kevin O'Connor4c0c85a2009-04-11 23:31:29 -0400222 if (OPTIONROM_VENDEV_2
223 && ((OPTIONROM_VENDEV_2 >> 16)
224 | ((OPTIONROM_VENDEV_2 & 0xffff)) << 16) == vendev)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400225 return copy_rom((void*)OPTIONROM_MEM_2);
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400226 int ret = cbfs_copy_optionrom((void*)RomEnd, max_rom() - RomEnd, vendev);
Kevin O'Connorcbd6ca02009-04-27 21:51:13 -0400227 if (ret < 0)
228 return NULL;
Kevin O'Connore7739302009-07-26 19:16:09 -0400229 return (void*)RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500230}
231
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400232// Run all roms in a given CBFS directory.
233static void
234run_cbfs_roms(const char *prefix, int isvga)
235{
Kevin O'Connor1f836252009-08-16 20:17:35 -0400236 struct cbfs_file *file = NULL;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400237 for (;;) {
Kevin O'Connor00882592009-08-18 22:21:10 -0400238 file = cbfs_findprefix(prefix, file);
Kevin O'Connor1f836252009-08-16 20:17:35 -0400239 if (!file)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400240 break;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400241 int ret = cbfs_copyfile(file, (void*)RomEnd, max_rom() - RomEnd);
Kevin O'Connor1f836252009-08-16 20:17:35 -0400242 if (ret > 0)
243 init_optionrom((void*)RomEnd, 0, isvga);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400244 }
245}
246
247
248/****************************************************************
249 * PCI roms
250 ****************************************************************/
251
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500252// Map the option rom of a given PCI device.
253static struct rom_header *
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400254map_pcirom(u16 bdf, u32 vendev)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500255{
Kevin O'Connor91b53a72009-05-05 22:52:09 -0400256 dprintf(6, "Attempting to map option rom on dev %02x:%02x.%x\n"
257 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500258
Kevin O'Connor62eea672008-12-06 11:57:45 -0500259 u8 htype = pci_config_readb(bdf, PCI_HEADER_TYPE);
260 if ((htype & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
261 dprintf(6, "Skipping non-normal pci device (type=%x)\n", htype);
262 return NULL;
263 }
264
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500265 u32 orig = pci_config_readl(bdf, PCI_ROM_ADDRESS);
266 pci_config_writel(bdf, PCI_ROM_ADDRESS, ~PCI_ROM_ADDRESS_ENABLE);
267 u32 sz = pci_config_readl(bdf, PCI_ROM_ADDRESS);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500268
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500269 dprintf(6, "Option rom sizing returned %x %x\n", orig, sz);
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500270 orig &= ~PCI_ROM_ADDRESS_ENABLE;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500271 if (!sz || sz == 0xffffffff)
272 goto fail;
273
Kevin O'Connor64cf2fb2009-04-18 17:01:02 -0400274 if (orig == sz || (u32)(orig + 4*1024*1024) < 20*1024*1024) {
275 // Don't try to map to a pci addresses at its max, in the last
276 // 4MiB of ram, or the first 16MiB of ram.
Kevin O'Connor62eea672008-12-06 11:57:45 -0500277 dprintf(6, "Preset rom address doesn't look valid\n");
278 goto fail;
279 }
280
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500281 // Looks like a rom - enable it.
282 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig | PCI_ROM_ADDRESS_ENABLE);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500283
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400284 struct rom_header *rom = (void*)orig;
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500285 for (;;) {
Kevin O'Connorc95d2ce2009-07-29 20:41:39 -0400286 dprintf(5, "Inspecting possible rom at %p (dv=%08x bdf=%x)\n"
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500287 , rom, vendev, bdf);
288 if (rom->signature != OPTION_ROM_SIGNATURE) {
289 dprintf(6, "No option rom signature (got %x)\n", rom->signature);
290 goto fail;
291 }
Kevin O'Connor62eea672008-12-06 11:57:45 -0500292 struct pci_data *pci = get_pci_rom(rom);
293 if (! pci) {
294 dprintf(6, "No valid pci signature found\n");
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500295 goto fail;
296 }
Kevin O'Connor62eea672008-12-06 11:57:45 -0500297
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500298 u32 vd = (pci->device << 16) | pci->vendor;
Kevin O'Connor62eea672008-12-06 11:57:45 -0500299 if (vd == vendev && pci->type == PCIROM_CODETYPE_X86)
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500300 // A match
301 break;
Kevin O'Connorc95d2ce2009-07-29 20:41:39 -0400302 dprintf(6, "Didn't match dev/ven (got %08x) or type (got %d)\n"
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500303 , vd, pci->type);
304 if (pci->indicator & 0x80) {
305 dprintf(6, "No more images left\n");
306 goto fail;
307 }
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400308 rom = (void*)((u32)rom + pci->ilen * 512);
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500309 }
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500310
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500311 rom = copy_rom(rom);
312 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500313 return rom;
314fail:
315 // Not valid - restore original and exit.
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500316 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500317 return NULL;
318}
319
320// Attempt to map and initialize the option rom on a given PCI device.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400321static int
322init_pcirom(u16 bdf, int isvga)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500323{
Kevin O'Connor4c0c85a2009-04-11 23:31:29 -0400324 u32 vendev = pci_config_readl(bdf, PCI_VENDOR_ID);
Kevin O'Connorc95d2ce2009-07-29 20:41:39 -0400325 dprintf(4, "Attempting to init PCI bdf %02x:%02x.%x (dev/ven %08x)\n"
Kevin O'Connor91b53a72009-05-05 22:52:09 -0400326 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf)
327 , vendev);
Kevin O'Connor4c0c85a2009-04-11 23:31:29 -0400328 struct rom_header *rom = lookup_hardcode(vendev);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500329 if (! rom)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400330 rom = map_pcirom(bdf, vendev);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500331 if (! rom)
332 // No ROM present.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400333 return -1;
334 return init_optionrom(rom, bdf, isvga);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500335}
336
337
338/****************************************************************
339 * Non-VGA option rom init
340 ****************************************************************/
341
342void
343optionrom_setup()
Kevin O'Connor714325c2008-11-01 20:32:27 -0400344{
345 if (! CONFIG_OPTIONROMS)
346 return;
347
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500348 dprintf(1, "Scan for option roms\n");
349
Kevin O'Connore7739302009-07-26 19:16:09 -0400350 u32 post_vga = RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500351
352 if (CONFIG_OPTIONROMS_DEPLOYED) {
353 // Option roms are already deployed on the system.
Kevin O'Connore7739302009-07-26 19:16:09 -0400354 u32 pos = RomEnd;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400355 while (pos < max_rom()) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400356 int ret = init_optionrom((void*)pos, 0, 0);
357 if (ret)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500358 pos += OPTION_ROM_ALIGN;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400359 else
Kevin O'Connore7739302009-07-26 19:16:09 -0400360 pos = RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500361 }
362 } else {
363 // Find and deploy PCI roms.
Kevin O'Connore6338322008-11-29 20:31:49 -0500364 int bdf, max;
Kevin O'Connor4132e022008-12-04 19:39:10 -0500365 foreachpci(bdf, max) {
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500366 u16 v = pci_config_readw(bdf, PCI_CLASS_DEVICE);
Kevin O'Connor62eea672008-12-06 11:57:45 -0500367 if (v == 0x0000 || v == 0xffff || v == PCI_CLASS_DISPLAY_VGA
368 || (CONFIG_ATA && v == PCI_CLASS_STORAGE_IDE))
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500369 continue;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400370 init_pcirom(bdf, 0);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500371 }
Kevin O'Connor1edc89d2009-04-30 21:50:35 -0400372
373 // Find and deploy CBFS roms not associated with a device.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400374 run_cbfs_roms("genroms/", 0);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500375 }
376
377 // All option roms found and deployed - now build BEV/BCV vectors.
378
379 u32 pos = post_vga;
Kevin O'Connore7739302009-07-26 19:16:09 -0400380 while (pos < RomEnd) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400381 struct rom_header *rom = (void*)pos;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500382 if (! is_valid_rom(rom)) {
383 pos += OPTION_ROM_ALIGN;
Kevin O'Connor714325c2008-11-01 20:32:27 -0400384 continue;
385 }
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500386 pos += ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
387 struct pnp_data *pnp = get_pnp_rom(rom);
388 if (! pnp) {
Kevin O'Connor0a924122009-02-08 19:43:47 -0500389 // Legacy rom.
390 add_bcv(FLATPTR_TO_SEG(rom), OPTION_ROM_INITVECTOR, 0);
Kevin O'Connor714325c2008-11-01 20:32:27 -0400391 continue;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500392 }
393 // PnP rom.
394 if (pnp->bev)
395 // Can boot system - add to IPL list.
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500396 add_bev(FLATPTR_TO_SEG(rom), pnp->bev, pnp->productname);
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500397 else
398 // Check for BCV (there may be multiple).
399 while (pnp && pnp->bcv) {
Kevin O'Connor0a924122009-02-08 19:43:47 -0500400 add_bcv(FLATPTR_TO_SEG(rom), pnp->bcv, pnp->productname);
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500401 pnp = get_pnp_next(rom, pnp);
402 }
Kevin O'Connor714325c2008-11-01 20:32:27 -0400403 }
404}
405
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500406
407/****************************************************************
408 * VGA init
409 ****************************************************************/
410
Kevin O'Connor714325c2008-11-01 20:32:27 -0400411// Call into vga code to turn on console.
412void
413vga_setup()
414{
Kevin O'Connore7739302009-07-26 19:16:09 -0400415 VGAbdf = -1;
416 RomEnd = BUILD_ROM_START;
417
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500418 if (! CONFIG_OPTIONROMS)
419 return;
420
Kevin O'Connor714325c2008-11-01 20:32:27 -0400421 dprintf(1, "Scan for VGA option rom\n");
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500422
423 if (CONFIG_OPTIONROMS_DEPLOYED) {
424 // Option roms are already deployed on the system.
Kevin O'Connore7739302009-07-26 19:16:09 -0400425 init_optionrom((void*)BUILD_ROM_START, 0, 1);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500426 } else {
427 // Find and deploy PCI VGA rom.
Kevin O'Connor04eece22009-07-19 19:05:30 -0400428 int bdf = VGAbdf = pci_find_vga();
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400429 if (bdf >= 0)
430 init_pcirom(bdf, 1);
Kevin O'Connor09880da2009-06-17 20:35:41 -0400431
432 // Find and deploy CBFS vga-style roms not associated with a device.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400433 run_cbfs_roms("vgaroms/", 1);
434 }
435
Kevin O'Connore7739302009-07-26 19:16:09 -0400436 if (RomEnd == BUILD_ROM_START) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400437 // No VGA rom found
Kevin O'Connore7739302009-07-26 19:16:09 -0400438 RomEnd += OPTION_ROM_ALIGN;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400439 return;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500440 }
Kevin O'Connor714325c2008-11-01 20:32:27 -0400441
442 dprintf(1, "Turning on vga console\n");
443 struct bregs br;
444 memset(&br, 0, sizeof(br));
445 br.ax = 0x0003;
446 call16_int(0x10, &br);
447
448 // Write to screen.
Kevin O'Connorc95d2ce2009-07-29 20:41:39 -0400449 printf("Starting SeaBIOS (version %s)\n\n", VERSION);
Kevin O'Connor714325c2008-11-01 20:32:27 -0400450}
Kevin O'Connord282af72009-07-04 04:10:32 -0400451
452void
453s3_resume_vga_init()
454{
455 if (!CONFIG_S3_RESUME_VGA_INIT)
456 return;
Kevin O'Connore7739302009-07-26 19:16:09 -0400457 struct rom_header *rom = (void*)BUILD_ROM_START;
Kevin O'Connord282af72009-07-04 04:10:32 -0400458 if (! is_valid_rom(rom))
459 return;
460 callrom(rom, 0);
461}