![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to vgahooks.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Qemu by Fabrice Bellard] / qemu / roms / seabios / src|
Return to vgahooks.c CVS log | Up to [Qemu by Fabrice Bellard] / qemu / roms / seabios / src |
1.1 root 1: // Hooks for via vgabios calls into main bios.
2: //
3: // Copyright (C) 2008 Kevin O'Connor <[email protected]>
4: //
5: // This file may be distributed under the terms of the GNU LGPLv3 license.
6:
7: #include "bregs.h" // set_code_invalid
8: #include "biosvar.h" // GET_GLOBAL
9: #include "pci.h" // pci_find_device
10: #include "pci_regs.h" // PCI_VENDOR_ID
11: #include "pci_ids.h" // PCI_VENDOR_ID_VIA
12: #include "util.h" // handle_155f
13: #include "config.h" // CONFIG_*
14:
1.1.1.5 root 15: #define VH_VIA 1
16: #define VH_INTEL 2
17:
18: int VGAHookHandlerType VAR16VISIBLE;
1.1.1.3 root 19:
1.1 root 20: static void
21: handle_155fXX(struct bregs *regs)
22: {
23: set_code_unimplemented(regs, RET_EUNSUPPORTED);
24: }
25:
26:
27: /****************************************************************
28: * Via hooks
29: ****************************************************************/
30:
1.1.1.5 root 31: int ViaFBsize VAR16VISIBLE, ViaRamSpeed VAR16VISIBLE;
32:
1.1 root 33: static void
34: via_155f01(struct bregs *regs)
35: {
36: regs->eax = 0x5f;
37: regs->cl = 2; // panel type = 2 = 1024 * 768
38: set_success(regs);
39: dprintf(1, "Warning: VGA panel type is hardcoded\n");
40: }
41:
42: static void
43: via_155f02(struct bregs *regs)
44: {
45: regs->eax = 0x5f;
46: regs->bx = 2;
47: regs->cx = 0x401; // PAL + crt only
48: regs->dx = 0; // TV Layout - default
49: set_success(regs);
50: dprintf(1, "Warning: VGA TV/CRT output type is hardcoded\n");
51: }
52:
1.1.1.5 root 53: static void
54: via_155f18(struct bregs *regs)
55: {
56: int fbsize = GET_GLOBAL(ViaFBsize), ramspeed = GET_GLOBAL(ViaRamSpeed);
57: if (fbsize < 0 || ramspeed < 0) {
58: set_code_invalid(regs, RET_EUNSUPPORTED);
59: return;
60: }
61: regs->eax = 0x5f;
62: regs->ebx = 0x500 | (ramspeed << 4) | fbsize;
63: regs->ecx = 0x060;
64: set_success(regs);
65: }
66:
67: static void
68: via_155f19(struct bregs *regs)
69: {
70: set_invalid_silent(regs);
71: }
72:
73: static void
74: via_155f(struct bregs *regs)
75: {
76: switch (regs->al) {
77: case 0x01: via_155f01(regs); break;
78: case 0x02: via_155f02(regs); break;
79: case 0x18: via_155f18(regs); break;
80: case 0x19: via_155f19(regs); break;
81: default: handle_155fXX(regs); break;
82: }
83: }
84:
1.1 root 85: static int
1.1.1.5 root 86: getFBSize(struct pci_device *pci)
1.1 root 87: {
88: /* FB config */
1.1.1.5 root 89: u8 reg = pci_config_readb(pci->bdf, 0xa1);
1.1 root 90:
91: /* GFX disabled ? */
92: if (!(reg & 0x80))
93: return -1;
94:
1.1.1.5 root 95: static u8 mem_power[] = {0, 3, 4, 5, 6, 7, 8, 9};
96: return mem_power[(reg >> 4) & 0x7];
1.1 root 97: }
98:
99: static int
1.1.1.5 root 100: getViaRamSpeed(struct pci_device *pci)
1.1 root 101: {
1.1.1.5 root 102: return (pci_config_readb(pci->bdf, 0x90) & 0x07) + 3;
1.1 root 103: }
104:
105: static int
1.1.1.2 root 106: getAMDRamSpeed(void)
1.1 root 107: {
1.1.1.5 root 108: struct pci_device *pci = pci_find_device(PCI_VENDOR_ID_AMD
109: , PCI_DEVICE_ID_AMD_K8_NB_MEMCTL);
110: if (!pci)
1.1 root 111: return -1;
112:
113: /* mem clk 0 = DDR2 400 */
1.1.1.5 root 114: return (pci_config_readb(pci->bdf, 0x94) & 0x7) + 6;
1.1 root 115: }
116:
117: /* int 0x15 - 5f18
118:
119: ECX = unknown/dont care
120: EBX[3..0] Frame Buffer Size 2^N MiB
121: EBX[7..4] Memory speed:
122: 0: SDR 66Mhz
123: 1: SDR 100Mhz
124: 2: SDR 133Mhz
125: 3: DDR 100Mhz (PC1600 or DDR200)
126: 4: DDR 133Mhz (PC2100 or DDR266)
127: 5: DDR 166Mhz (PC2700 or DDR333)
128: 6: DDR 200Mhz (PC3200 or DDR400)
129: 7: DDR2 133Mhz (DDR2 533)
130: 8: DDR2 166Mhz (DDR2 667)
131: 9: DDR2 200Mhz (DDR2 800)
132: A: DDR2 233Mhz (DDR2 1066)
133: B: and above: Unknown
134: EBX[?..8] Total memory size?
135: EAX = 0x5f for success
136: */
137:
138: #define PCI_DEVICE_ID_VIA_K8M890CE_3 0x3336
139: #define PCI_DEVICE_ID_VIA_VX855_MEMCTRL 0x3409
140:
141: static void
1.1.1.5 root 142: via_setup(struct pci_device *pci)
1.1 root 143: {
1.1.1.5 root 144: VGAHookHandlerType = VH_VIA;
1.1 root 145:
1.1.1.5 root 146: struct pci_device *d = pci_find_device(PCI_VENDOR_ID_VIA
147: , PCI_DEVICE_ID_VIA_K8M890CE_3);
148: if (d) {
149: ViaFBsize = getFBSize(d);
150: ViaRamSpeed = getAMDRamSpeed();
151: return;
1.1 root 152: }
1.1.1.5 root 153: d = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855_MEMCTRL);
154: if (d) {
155: ViaFBsize = getFBSize(d);
156: ViaRamSpeed = getViaRamSpeed(d);
157: return;
1.1 root 158: }
159:
160: dprintf(1, "Warning: VGA memory size and speed is hardcoded\n");
1.1.1.5 root 161: ViaFBsize = 5; // 32M frame buffer
162: ViaRamSpeed = 4; // MCLK = DDR266
1.1 root 163: }
164:
165:
1.1.1.3 root 166: /****************************************************************
167: * Intel VGA hooks
168: ****************************************************************/
1.1.1.5 root 169:
170: u8 IntelDisplayType VAR16VISIBLE, IntelDisplayId VAR16VISIBLE;
171:
1.1.1.3 root 172: static void
1.1.1.5 root 173: intel_155f35(struct bregs *regs)
1.1.1.3 root 174: {
175: regs->ax = 0x005f;
1.1.1.5 root 176: regs->cl = GET_GLOBAL(IntelDisplayType);
1.1.1.3 root 177: set_success(regs);
178: }
179:
180: static void
1.1.1.5 root 181: intel_155f40(struct bregs *regs)
1.1.1.3 root 182: {
183: regs->ax = 0x005f;
1.1.1.5 root 184: regs->cl = GET_GLOBAL(IntelDisplayId);
1.1.1.3 root 185: set_success(regs);
186: }
187:
188: static void
1.1.1.6 ! root 189: intel_155f50(struct bregs *regs)
! 190: {
! 191: /* Mandatory hook on some Dell laptops */
! 192: regs->ax = 0x005f;
! 193: set_success(regs);
! 194: }
! 195:
! 196: static void
1.1.1.5 root 197: intel_155f(struct bregs *regs)
1.1.1.3 root 198: {
199: switch (regs->al) {
1.1.1.5 root 200: case 0x35: intel_155f35(regs); break;
201: case 0x40: intel_155f40(regs); break;
1.1.1.6 ! root 202: case 0x50: intel_155f50(regs); break;
1.1.1.3 root 203: default: handle_155fXX(regs); break;
204: }
205: }
206:
1.1.1.5 root 207: #define BOOT_DISPLAY_DEFAULT (0)
208: #define BOOT_DISPLAY_CRT (1 << 0)
209: #define BOOT_DISPLAY_TV (1 << 1)
210: #define BOOT_DISPLAY_EFP (1 << 2)
211: #define BOOT_DISPLAY_LCD (1 << 3)
212: #define BOOT_DISPLAY_CRT2 (1 << 4)
213: #define BOOT_DISPLAY_TV2 (1 << 5)
214: #define BOOT_DISPLAY_EFP2 (1 << 6)
215: #define BOOT_DISPLAY_LCD2 (1 << 7)
1.1.1.3 root 216:
217: static void
1.1.1.6 ! root 218: intel_setup(struct pci_device *pci)
! 219: {
! 220: VGAHookHandlerType = VH_INTEL;
! 221:
! 222: IntelDisplayType = BOOT_DISPLAY_DEFAULT;
! 223: IntelDisplayId = 3;
! 224: }
! 225:
! 226: static void
1.1.1.5 root 227: roda_setup(struct pci_device *pci)
1.1.1.3 root 228: {
1.1.1.5 root 229: VGAHookHandlerType = VH_INTEL;
230: // IntelDisplayType = BOOT_DISPLAY_DEFAULT;
231: IntelDisplayType = BOOT_DISPLAY_LCD;
232: // IntelDisplayId = inb(0x60f) & 0x0f; // Correct according to Crete
233: IntelDisplayId = 3; // Correct according to empirical studies
1.1.1.3 root 234: }
235:
236: static void
1.1.1.5 root 237: kontron_setup(struct pci_device *pci)
1.1.1.3 root 238: {
1.1.1.5 root 239: VGAHookHandlerType = VH_INTEL;
240: IntelDisplayType = BOOT_DISPLAY_CRT;
241: IntelDisplayId = 3;
1.1.1.3 root 242: }
243:
244: static void
1.1.1.5 root 245: getac_setup(struct pci_device *pci)
1.1.1.3 root 246: {
247: }
1.1 root 248:
1.1.1.5 root 249:
1.1 root 250: /****************************************************************
251: * Entry and setup
252: ****************************************************************/
253:
254: // Main 16bit entry point
255: void
256: handle_155f(struct bregs *regs)
257: {
1.1.1.5 root 258: if (!CONFIG_VGAHOOKS) {
259: handle_155fXX(regs);
260: return;
1.1 root 261: }
262:
1.1.1.5 root 263: int htype = GET_GLOBAL(VGAHookHandlerType);
264: switch (htype) {
265: case VH_VIA: via_155f(regs); break;
266: case VH_INTEL: intel_155f(regs); break;
267: default: handle_155fXX(regs); break;
268: }
1.1 root 269: }
270:
271: // Setup
272: void
1.1.1.5 root 273: vgahook_setup(struct pci_device *pci)
1.1 root 274: {
1.1.1.6 ! root 275: if (!CONFIG_VGAHOOKS)
1.1 root 276: return;
1.1.1.3 root 277:
1.1.1.5 root 278: if (strcmp(CBvendor, "KONTRON") == 0 && strcmp(CBpart, "986LCD-M") == 0)
279: kontron_setup(pci);
280: else if (strcmp(CBvendor, "GETAC") == 0 && strcmp(CBpart, "P470") == 0)
281: getac_setup(pci);
282: else if (strcmp(CBvendor, "RODA") == 0 && strcmp(CBpart, "RK886EX") == 0)
283: roda_setup(pci);
284: else if (pci->vendor == PCI_VENDOR_ID_VIA)
285: via_setup(pci);
1.1.1.6 ! root 286: else if (pci->vendor == PCI_VENDOR_ID_INTEL)
! 287: intel_setup(pci);
1.1 root 288: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.