diff options
Diffstat (limited to 'driver/xf86-video-intel/src/i830_modes.c')
| -rw-r--r-- | driver/xf86-video-intel/src/i830_modes.c | 847 |
1 files changed, 847 insertions, 0 deletions
diff --git a/driver/xf86-video-intel/src/i830_modes.c b/driver/xf86-video-intel/src/i830_modes.c new file mode 100644 index 000000000..7d1451983 --- /dev/null +++ b/driver/xf86-video-intel/src/i830_modes.c @@ -0,0 +1,847 @@ +#define DEBUG_VERB 2 +/* + * Copyright © 2002 David Dawes + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of the author(s) shall + * not be used in advertising or otherwise to promote the sale, use or other + * dealings in this Software without prior written authorization from + * the author(s). + * + * Authors: David Dawes <dawes@xfree86.org> + * + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/vbe/vbeModes.c,v 1.6 2002/11/02 01:38:25 dawes Exp $ + */ +/* + * Modified by Alan Hourihane <alanh@tungstengraphics.com> + * to support extended BIOS modes for the Intel chipsets + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdio.h> +#include <string.h> + +#include "xf86.h" +#include "i830.h" + +#include <math.h> + +#define rint(x) floor(x) + +#define MARGIN_PERCENT 1.8 /* % of active vertical image */ +#define CELL_GRAN 8.0 /* assumed character cell granularity */ +#define MIN_PORCH 1 /* minimum front porch */ +#define V_SYNC_RQD 3 /* width of vsync in lines */ +#define H_SYNC_PERCENT 8.0 /* width of hsync as % of total line */ +#define MIN_VSYNC_PLUS_BP 550.0 /* min time of vsync + back porch (microsec) */ +#define M 600.0 /* blanking formula gradient */ +#define C 40.0 /* blanking formula offset */ +#define K 128.0 /* blanking formula scaling factor */ +#define J 20.0 /* blanking formula scaling factor */ + +/* C' and M' are part of the Blanking Duty Cycle computation */ + +#define C_PRIME (((C - J) * K/256.0) + J) +#define M_PRIME (K/256.0 * M) + +extern const int i830refreshes[]; + +static DisplayModePtr +I830GetGTF (int h_pixels, int v_lines, float freq, + int interlaced, int margins) +{ + float h_pixels_rnd; + float v_lines_rnd; + float v_field_rate_rqd; + float top_margin; + float bottom_margin; + float interlace; + float h_period_est; + float vsync_plus_bp; + float v_back_porch; + float total_v_lines; + float v_field_rate_est; + float h_period; + float v_field_rate; + float v_frame_rate; + float left_margin; + float right_margin; + float total_active_pixels; + float ideal_duty_cycle; + float h_blank; + float total_pixels; + float pixel_freq; + float h_freq; + + float h_sync; + float h_front_porch; + float v_odd_front_porch_lines; + char modename[20]; + DisplayModePtr m; + + m = xnfcalloc(sizeof(DisplayModeRec), 1); + + + /* 1. In order to give correct results, the number of horizontal + * pixels requested is first processed to ensure that it is divisible + * by the character size, by rounding it to the nearest character + * cell boundary: + * + * [H PIXELS RND] = ((ROUND([H PIXELS]/[CELL GRAN RND],0))*[CELLGRAN RND]) + */ + + h_pixels_rnd = rint((float) h_pixels / CELL_GRAN) * CELL_GRAN; + + + /* 2. If interlace is requested, the number of vertical lines assumed + * by the calculation must be halved, as the computation calculates + * the number of vertical lines per field. In either case, the + * number of lines is rounded to the nearest integer. + * + * [V LINES RND] = IF([INT RQD?]="y", ROUND([V LINES]/2,0), + * ROUND([V LINES],0)) + */ + + v_lines_rnd = interlaced ? + rint((float) v_lines) / 2.0 : + rint((float) v_lines); + + /* 3. Find the frame rate required: + * + * [V FIELD RATE RQD] = IF([INT RQD?]="y", [I/P FREQ RQD]*2, + * [I/P FREQ RQD]) + */ + + v_field_rate_rqd = interlaced ? (freq * 2.0) : (freq); + + /* 4. Find number of lines in Top margin: + * + * [TOP MARGIN (LINES)] = IF([MARGINS RQD?]="Y", + * ROUND(([MARGIN%]/100*[V LINES RND]),0), + * 0) + */ + + top_margin = margins ? rint(MARGIN_PERCENT / 100.0 * v_lines_rnd) : (0.0); + + /* 5. Find number of lines in Bottom margin: + * + * [BOT MARGIN (LINES)] = IF([MARGINS RQD?]="Y", + * ROUND(([MARGIN%]/100*[V LINES RND]),0), + * 0) + */ + + bottom_margin = margins ? rint(MARGIN_PERCENT/100.0 * v_lines_rnd) : (0.0); + + /* 6. If interlace is required, then set variable [INTERLACE]=0.5: + * + * [INTERLACE]=(IF([INT RQD?]="y",0.5,0)) + */ + + interlace = interlaced ? 0.5 : 0.0; + + /* 7. Estimate the Horizontal period + * + * [H PERIOD EST] = ((1/[V FIELD RATE RQD]) - [MIN VSYNC+BP]/1000000) / + * ([V LINES RND] + (2*[TOP MARGIN (LINES)]) + + * [MIN PORCH RND]+[INTERLACE]) * 1000000 + */ + + h_period_est = (((1.0/v_field_rate_rqd) - (MIN_VSYNC_PLUS_BP/1000000.0)) + / (v_lines_rnd + (2*top_margin) + MIN_PORCH + interlace) + * 1000000.0); + + /* 8. Find the number of lines in V sync + back porch: + * + * [V SYNC+BP] = ROUND(([MIN VSYNC+BP]/[H PERIOD EST]),0) + */ + + vsync_plus_bp = rint(MIN_VSYNC_PLUS_BP/h_period_est); + + /* 9. Find the number of lines in V back porch alone: + * + * [V BACK PORCH] = [V SYNC+BP] - [V SYNC RND] + * + * XXX is "[V SYNC RND]" a typo? should be [V SYNC RQD]? + */ + + v_back_porch = vsync_plus_bp - V_SYNC_RQD; + + /* 10. Find the total number of lines in Vertical field period: + * + * [TOTAL V LINES] = [V LINES RND] + [TOP MARGIN (LINES)] + + * [BOT MARGIN (LINES)] + [V SYNC+BP] + [INTERLACE] + + * [MIN PORCH RND] + */ + + total_v_lines = v_lines_rnd + top_margin + bottom_margin + vsync_plus_bp + + interlace + MIN_PORCH; + + /* 11. Estimate the Vertical field frequency: + * + * [V FIELD RATE EST] = 1 / [H PERIOD EST] / [TOTAL V LINES] * 1000000 + */ + + v_field_rate_est = 1.0 / h_period_est / total_v_lines * 1000000.0; + + /* 12. Find the actual horizontal period: + * + * [H PERIOD] = [H PERIOD EST] / ([V FIELD RATE RQD] / [V FIELD RATE EST]) + */ + + h_period = h_period_est / (v_field_rate_rqd / v_field_rate_est); + + /* 13. Find the actual Vertical field frequency: + * + * [V FIELD RATE] = 1 / [H PERIOD] / [TOTAL V LINES] * 1000000 + */ + + v_field_rate = 1.0 / h_period / total_v_lines * 1000000.0; + + /* 14. Find the Vertical frame frequency: + * + * [V FRAME RATE] = (IF([INT RQD?]="y", [V FIELD RATE]/2, [V FIELD RATE])) + */ + + v_frame_rate = interlaced ? v_field_rate / 2.0 : v_field_rate; + + /* 15. Find number of pixels in left margin: + * + * [LEFT MARGIN (PIXELS)] = (IF( [MARGINS RQD?]="Y", + * (ROUND( ([H PIXELS RND] * [MARGIN%] / 100 / + * [CELL GRAN RND]),0)) * [CELL GRAN RND], + * 0)) + */ + + left_margin = margins ? + rint(h_pixels_rnd * MARGIN_PERCENT / 100.0 / CELL_GRAN) * CELL_GRAN : + 0.0; + + /* 16. Find number of pixels in right margin: + * + * [RIGHT MARGIN (PIXELS)] = (IF( [MARGINS RQD?]="Y", + * (ROUND( ([H PIXELS RND] * [MARGIN%] / 100 / + * [CELL GRAN RND]),0)) * [CELL GRAN RND], + * 0)) + */ + + right_margin = margins ? + rint(h_pixels_rnd * MARGIN_PERCENT / 100.0 / CELL_GRAN) * CELL_GRAN : + 0.0; + + /* 17. Find total number of active pixels in image and left and right + * margins: + * + * [TOTAL ACTIVE PIXELS] = [H PIXELS RND] + [LEFT MARGIN (PIXELS)] + + * [RIGHT MARGIN (PIXELS)] + */ + + total_active_pixels = h_pixels_rnd + left_margin + right_margin; + + /* 18. Find the ideal blanking duty cycle from the blanking duty cycle + * equation: + * + * [IDEAL DUTY CYCLE] = [C'] - ([M']*[H PERIOD]/1000) + */ + + ideal_duty_cycle = C_PRIME - (M_PRIME * h_period / 1000.0); + + /* 19. Find the number of pixels in the blanking time to the nearest + * double character cell: + * + * [H BLANK (PIXELS)] = (ROUND(([TOTAL ACTIVE PIXELS] * + * [IDEAL DUTY CYCLE] / + * (100-[IDEAL DUTY CYCLE]) / + * (2*[CELL GRAN RND])), 0)) + * * (2*[CELL GRAN RND]) + */ + + h_blank = rint(total_active_pixels * + ideal_duty_cycle / + (100.0 - ideal_duty_cycle) / + (2.0 * CELL_GRAN)) * (2.0 * CELL_GRAN); + + /* 20. Find total number of pixels: + * + * [TOTAL PIXELS] = [TOTAL ACTIVE PIXELS] + [H BLANK (PIXELS)] + */ + + total_pixels = total_active_pixels + h_blank; + + /* 21. Find pixel clock frequency: + * + * [PIXEL FREQ] = [TOTAL PIXELS] / [H PERIOD] + */ + + pixel_freq = total_pixels / h_period; + + /* 22. Find horizontal frequency: + * + * [H FREQ] = 1000 / [H PERIOD] + */ + + h_freq = 1000.0 / h_period; + + + /* Stage 1 computations are now complete; I should really pass + the results to another function and do the Stage 2 + computations, but I only need a few more values so I'll just + append the computations here for now */ + + + + /* 17. Find the number of pixels in the horizontal sync period: + * + * [H SYNC (PIXELS)] =(ROUND(([H SYNC%] / 100 * [TOTAL PIXELS] / + * [CELL GRAN RND]),0))*[CELL GRAN RND] + */ + + h_sync = rint(H_SYNC_PERCENT/100.0 * total_pixels / CELL_GRAN) * CELL_GRAN; + + /* 18. Find the number of pixels in the horizontal front porch period: + * + * [H FRONT PORCH (PIXELS)] = ([H BLANK (PIXELS)]/2)-[H SYNC (PIXELS)] + */ + + h_front_porch = (h_blank / 2.0) - h_sync; + + /* 36. Find the number of lines in the odd front porch period: + * + * [V ODD FRONT PORCH(LINES)]=([MIN PORCH RND]+[INTERLACE]) + */ + + v_odd_front_porch_lines = MIN_PORCH + interlace; + + /* finally, pack the results in the DisplayMode struct */ + + m->HDisplay = (int) (h_pixels_rnd); + m->HSyncStart = (int) (h_pixels_rnd + h_front_porch); + m->HSyncEnd = (int) (h_pixels_rnd + h_front_porch + h_sync); + m->HTotal = (int) (total_pixels); + + m->VDisplay = (int) (v_lines_rnd); + m->VSyncStart = (int) (v_lines_rnd + v_odd_front_porch_lines); + m->VSyncEnd = (int) (int) (v_lines_rnd + v_odd_front_porch_lines + V_SYNC_RQD); + m->VTotal = (int) (total_v_lines); + + m->Clock = (int)(pixel_freq * 1000); + m->SynthClock = m->Clock; + m->HSync = h_freq; + m->VRefresh = v_frame_rate /* freq */; + + snprintf(modename, sizeof(modename), "%dx%d", m->HDisplay,m->VDisplay); + m->name = xnfstrdup(modename); + + return (m); +} + +static DisplayModePtr +CheckMode(ScrnInfoPtr pScrn, vbeInfoPtr pVbe, VbeInfoBlock *vbe, int id, + int flags) +{ + CARD16 major, minor; + VbeModeInfoBlock *mode; + DisplayModePtr p = NULL, pMode = NULL; +#if 0 + VbeModeInfoData *data; +#else + I830ModePrivatePtr data; +#endif + Bool modeOK = FALSE; + ModeStatus status = MODE_OK; + + major = (unsigned)(vbe->VESAVersion >> 8); + minor = vbe->VESAVersion & 0xff; + + if ((mode = VBEGetModeInfo(pVbe, id)) == NULL) + return NULL; + + /* Does the mode match the depth/bpp? */ + /* Some BIOS's set BitsPerPixel to 15 instead of 16 for 15/16 */ + if (VBE_MODE_USABLE(mode, flags) && + ((pScrn->bitsPerPixel == 1 && !VBE_MODE_COLOR(mode)) || + (mode->BitsPerPixel > 8 && + (mode->RedMaskSize + mode->GreenMaskSize + + mode->BlueMaskSize) == pScrn->depth && + mode->BitsPerPixel == pScrn->bitsPerPixel) || + (mode->BitsPerPixel == 15 && pScrn->depth == 15) || + (mode->BitsPerPixel <= 8 && + mode->BitsPerPixel == pScrn->bitsPerPixel))) { + modeOK = TRUE; + xf86ErrorFVerb(DEBUG_VERB, "*"); + } + + if (mode->XResolution && mode->YResolution && + !I830CheckModeSupport(pScrn, mode->XResolution, mode->YResolution, id)) + modeOK = FALSE; + + + /* + * Check if there's a valid monitor mode that this one can be matched + * up with from the 'specified' modes list. + */ + if (modeOK) { + for (p = pScrn->monitor->Modes; p != NULL; p = p->next) { + if ((p->type != 0) || + (p->HDisplay != mode->XResolution) || + (p->VDisplay != mode->YResolution) || + (p->Flags & (V_INTERLACE | V_DBLSCAN | V_CLKDIV2))) + continue; + status = xf86CheckModeForMonitor(p, pScrn->monitor); + if (status == MODE_OK) { + modeOK = TRUE; + break; + } + } + if (p) { + pMode = xnfcalloc(sizeof(DisplayModeRec), 1); + memcpy((char*)pMode,(char*)p,sizeof(DisplayModeRec)); + pMode->name = xnfstrdup(p->name); + } + } + + /* + * Now, check if there's a valid monitor mode that this one can be matched + * up with from the default modes list. i.e. VESA modes in xf86DefModes.c + */ + if (modeOK && !pMode) { + int refresh = 0, calcrefresh = 0; + DisplayModePtr newMode = NULL; + + for (p = pScrn->monitor->Modes; p != NULL; p = p->next) { + calcrefresh = (int)(((double)(p->Clock * 1000) / + (double)(p->HTotal * p->VTotal)) * 100); + if ((p->type != M_T_DEFAULT) || + (p->HDisplay != mode->XResolution) || + (p->VDisplay != mode->YResolution) || + (p->Flags & (V_INTERLACE | V_DBLSCAN | V_CLKDIV2))) + continue; + status = xf86CheckModeForMonitor(p, pScrn->monitor); + if (status == MODE_OK) { + if (calcrefresh > refresh) { + refresh = calcrefresh; + newMode = p; + } + modeOK = TRUE; + } + } + if (newMode) { + pMode = xnfcalloc(sizeof(DisplayModeRec), 1); + memcpy((char*)pMode,(char*)newMode,sizeof(DisplayModeRec)); + pMode->name = xnfstrdup(newMode->name); + } + } + + /* + * Check if there's a valid monitor mode that this one can be matched + * up with. The actual matching is done later. + */ + if (modeOK && !pMode) { + float vrefresh = 0.0f; + int i; + + for (i=0;i<pScrn->monitor->nVrefresh;i++) { + + for (vrefresh = pScrn->monitor->vrefresh[i].hi; + vrefresh >= pScrn->monitor->vrefresh[i].lo; vrefresh -= 1.0f) { + + if (vrefresh != (float)0.0f) { + float best_vrefresh; + int int_vrefresh; + + /* Find the best refresh for the Intel chipsets */ + int_vrefresh = I830GetBestRefresh(pScrn, (int)vrefresh); + best_vrefresh = (float)i830refreshes[int_vrefresh]; + + /* Now, grab the best mode from the available refresh */ + pMode = I830GetGTF(mode->XResolution, mode->YResolution, + best_vrefresh, 0, 0); + + pMode->type = M_T_BUILTIN; + + status = xf86CheckModeForMonitor(pMode, pScrn->monitor); + if (status == MODE_OK) { + if (major >= 3) { + if (pMode->Clock * 1000 <= mode->MaxPixelClock) + modeOK = TRUE; + else + modeOK = FALSE; + } else + modeOK = TRUE; + } else + modeOK = FALSE; + pMode->status = status; + } else { + modeOK = FALSE; + } + if (modeOK) break; + } + if (modeOK) break; + } + } + + xf86ErrorFVerb(DEBUG_VERB, + "Mode: %x (%dx%d)\n", id, mode->XResolution, mode->YResolution); + xf86ErrorFVerb(DEBUG_VERB, + " ModeAttributes: 0x%x\n", mode->ModeAttributes); + xf86ErrorFVerb(DEBUG_VERB, + " WinAAttributes: 0x%x\n", mode->WinAAttributes); + xf86ErrorFVerb(DEBUG_VERB, + " WinBAttributes: 0x%x\n", mode->WinBAttributes); + xf86ErrorFVerb(DEBUG_VERB, + " WinGranularity: %d\n", mode->WinGranularity); + xf86ErrorFVerb(DEBUG_VERB, + " WinSize: %d\n", mode->WinSize); + xf86ErrorFVerb(DEBUG_VERB, + " WinASegment: 0x%x\n", mode->WinASegment); + xf86ErrorFVerb(DEBUG_VERB, + " WinBSegment: 0x%x\n", mode->WinBSegment); + xf86ErrorFVerb(DEBUG_VERB, + " WinFuncPtr: 0x%lx\n", (unsigned long)mode->WinFuncPtr); + xf86ErrorFVerb(DEBUG_VERB, + " BytesPerScanline: %d\n", mode->BytesPerScanline); + xf86ErrorFVerb(DEBUG_VERB, + " XResolution: %d\n", mode->XResolution); + xf86ErrorFVerb(DEBUG_VERB, + " YResolution: %d\n", mode->YResolution); + xf86ErrorFVerb(DEBUG_VERB, + " XCharSize: %d\n", mode->XCharSize); + xf86ErrorFVerb(DEBUG_VERB, + " YCharSize: %d\n", mode->YCharSize); + xf86ErrorFVerb(DEBUG_VERB, + " NumberOfPlanes: %d\n", mode->NumberOfPlanes); + xf86ErrorFVerb(DEBUG_VERB, + " BitsPerPixel: %d\n", mode->BitsPerPixel); + xf86ErrorFVerb(DEBUG_VERB, + " NumberOfBanks: %d\n", mode->NumberOfBanks); + xf86ErrorFVerb(DEBUG_VERB, + " MemoryModel: %d\n", mode->MemoryModel); + xf86ErrorFVerb(DEBUG_VERB, + " BankSize: %d\n", mode->BankSize); + xf86ErrorFVerb(DEBUG_VERB, + " NumberOfImages: %d\n", mode->NumberOfImages); + xf86ErrorFVerb(DEBUG_VERB, + " RedMaskSize: %d\n", mode->RedMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " RedFieldPosition: %d\n", mode->RedFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " GreenMaskSize: %d\n", mode->GreenMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " GreenFieldPosition: %d\n", mode->GreenFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " BlueMaskSize: %d\n", mode->BlueMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " BlueFieldPosition: %d\n", mode->BlueFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " RsvdMaskSize: %d\n", mode->RsvdMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " RsvdFieldPosition: %d\n", mode->RsvdFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " DirectColorModeInfo: %d\n", mode->DirectColorModeInfo); + if (major >= 2) { + xf86ErrorFVerb(DEBUG_VERB, + " PhysBasePtr: 0x%lx\n", + (unsigned long)mode->PhysBasePtr); + if (major >= 3) { + xf86ErrorFVerb(DEBUG_VERB, + " LinBytesPerScanLine: %d\n", mode->LinBytesPerScanLine); + xf86ErrorFVerb(DEBUG_VERB, + " BnkNumberOfImagePages: %d\n", mode->BnkNumberOfImagePages); + xf86ErrorFVerb(DEBUG_VERB, + " LinNumberOfImagePages: %d\n", mode->LinNumberOfImagePages); + xf86ErrorFVerb(DEBUG_VERB, + " LinRedMaskSize: %d\n", mode->LinRedMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " LinRedFieldPosition: %d\n", mode->LinRedFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " LinGreenMaskSize: %d\n", mode->LinGreenMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " LinGreenFieldPosition: %d\n", mode->LinGreenFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " LinBlueMaskSize: %d\n", mode->LinBlueMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " LinBlueFieldPosition: %d\n", mode->LinBlueFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " LinRsvdMaskSize: %d\n", mode->LinRsvdMaskSize); + xf86ErrorFVerb(DEBUG_VERB, + " LinRsvdFieldPosition: %d\n", mode->LinRsvdFieldPosition); + xf86ErrorFVerb(DEBUG_VERB, + " MaxPixelClock: %ld\n", (unsigned long) + mode->MaxPixelClock); + } + } + + if (!modeOK) { + VBEFreeModeInfo(mode); + if (pMode) + xfree(pMode); + return NULL; + } + + pMode->status = MODE_OK; + pMode->type = M_T_BUILTIN; + + /* for adjust frame */ + pMode->HDisplay = mode->XResolution; + pMode->VDisplay = mode->YResolution; + +#if 0 + data = xnfcalloc(sizeof(VbeModeInfoData), 1); + data->mode = id; + data->data = mode; + pMode->PrivSize = sizeof(VbeModeInfoData); + pMode->Private = (INT32*)data; +#else + data = xnfcalloc(sizeof(I830ModePrivateRec), 1); + data->vbeData.mode = id; + data->vbeData.data = mode; + pMode->PrivSize = sizeof(I830ModePrivateRec); + pMode->Private = (INT32*)data; +#endif + pMode->next = NULL; + + return pMode; +} + +/* + * Check the available BIOS modes, and extract those that match the + * requirements into the modePool. Note: modePool is a NULL-terminated + * list. + */ + +DisplayModePtr +I830GetModePool(ScrnInfoPtr pScrn, vbeInfoPtr pVbe, VbeInfoBlock *vbe) +{ + DisplayModePtr pMode, p = NULL, modePool = NULL; + int i = 0; + + for (i = 0; i < 0x7F; i++) { + if ((pMode = CheckMode(pScrn, pVbe, vbe, i, V_MODETYPE_VGA)) != NULL) { + ModeStatus status = MODE_OK; + + /* Check the mode against a specified virtual size (if any) */ + if (pScrn->display->virtualX > 0 && + pMode->HDisplay > pScrn->display->virtualX) { + status = MODE_VIRTUAL_X; + } + if (pScrn->display->virtualY > 0 && + pMode->VDisplay > pScrn->display->virtualY) { + status = MODE_VIRTUAL_Y; + } + if (status != MODE_OK) { + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "Not using mode \"%dx%d\" (%s)\n", + pMode->HDisplay, pMode->VDisplay, + xf86ModeStatusToString(status)); + } else { + if (p == NULL) { + modePool = pMode; + } else { + p->next = pMode; + } + pMode->prev = NULL; + p = pMode; + } + } + } + return modePool; +} + +/* + * Go through the monitor modes and selecting the best set of + * parameters for each BIOS mode. Note: This is only supported in + * VBE version 3.0 or later. + */ +void +I830SetModeParameters(ScrnInfoPtr pScrn, vbeInfoPtr pVbe) +{ + I830Ptr pI830 = I830PTR(pScrn); + DisplayModePtr pMode = pScrn->modes; + DisplayModePtr ppMode = pScrn->modes; + I830ModePrivatePtr mp = NULL; + + do { + int clock; + + mp = (I830ModePrivatePtr) pMode->Private; + + if (pI830->MergedFB) { + xf86DrvMsg(pScrn->scrnIndex, X_INFO, "%s\n", pScrn->monitor->id); + ppMode = (DisplayModePtr) mp->merged.First; + mp = (I830ModePrivatePtr) mp->merged.First->Private; + } + mp->vbeData.block = xcalloc(sizeof(VbeCRTCInfoBlock), 1); + mp->vbeData.block->HorizontalTotal = ppMode->HTotal; + mp->vbeData.block->HorizontalSyncStart = ppMode->HSyncStart; + mp->vbeData.block->HorizontalSyncEnd = ppMode->HSyncEnd; + mp->vbeData.block->VerticalTotal = ppMode->VTotal; + mp->vbeData.block->VerticalSyncStart = ppMode->VSyncStart; + mp->vbeData.block->VerticalSyncEnd = ppMode->VSyncEnd; + mp->vbeData.block->Flags = ((ppMode->Flags & V_NHSYNC) ? CRTC_NHSYNC : 0) | + ((ppMode->Flags & V_NVSYNC) ? CRTC_NVSYNC : 0); + mp->vbeData.block->PixelClock = ppMode->Clock * 1000; + /* XXX May not have this. */ + clock = VBEGetPixelClock(pVbe, mp->vbeData.mode, mp->vbeData.block->PixelClock); + if (clock) + mp->vbeData.block->PixelClock = clock; +#ifdef DEBUG + ErrorF("Setting clock %.2fMHz, closest is %.2fMHz\n", + (double)mp->vbeData.block->PixelClock / 1000000.0, + (double)clock / 1000000.0); +#endif + mp->vbeData.mode |= (1 << 11); + if (ppMode->VRefresh != 0) { + mp->vbeData.block->RefreshRate = ppMode->VRefresh * 100; + } else { + mp->vbeData.block->RefreshRate = (int)(((double)(mp->vbeData.block->PixelClock)/ + (double)(ppMode->HTotal * ppMode->VTotal)) * 100); + } + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "Attempting to use %2.2fHz refresh for mode \"%s\" (%x)\n", + (float)(((double)(mp->vbeData.block->PixelClock) / (double)(ppMode->HTotal * ppMode->VTotal))), ppMode->name, mp->vbeData.mode); +#ifdef DEBUG + ErrorF("Video Modeline: ID: 0x%x Name: %s %i %i %i %i - " + " %i %i %i %i %.2f MHz Refresh: %.2f Hz\n", + mp->vbeData.mode, ppMode->name, ppMode->HDisplay, ppMode->HSyncStart, + ppMode->HSyncEnd, ppMode->HTotal, ppMode->VDisplay, + ppMode->VSyncStart,ppMode->VSyncEnd,ppMode->VTotal, + (double)mp->vbeData.block->PixelClock/1000000.0, + (double)mp->vbeData.block->RefreshRate/100); +#endif + pMode = ppMode = pMode->next; + } while (pMode != pScrn->modes); + + if (pI830->MergedFB) { + xf86DrvMsg(pScrn->scrnIndex, X_INFO, "%s\n", pI830->pScrn_2->monitor->id); + pMode = pScrn->modes; + do { + int clock; + + mp = (I830ModePrivatePtr) pMode->Private; + ppMode = (DisplayModePtr) mp->merged.Second; + mp = (I830ModePrivatePtr) mp->merged.Second->Private; + + mp->vbeData.block = xcalloc(sizeof(VbeCRTCInfoBlock), 1); + mp->vbeData.block->HorizontalTotal = ppMode->HTotal; + mp->vbeData.block->HorizontalSyncStart = ppMode->HSyncStart; + mp->vbeData.block->HorizontalSyncEnd = ppMode->HSyncEnd; + mp->vbeData.block->VerticalTotal = ppMode->VTotal; + mp->vbeData.block->VerticalSyncStart = ppMode->VSyncStart; + mp->vbeData.block->VerticalSyncEnd = ppMode->VSyncEnd; + mp->vbeData.block->Flags = ((ppMode->Flags & V_NHSYNC) ? CRTC_NHSYNC : 0) | + ((ppMode->Flags & V_NVSYNC) ? CRTC_NVSYNC : 0); + mp->vbeData.block->PixelClock = ppMode->Clock * 1000; + /* XXX May not have this. */ + clock = VBEGetPixelClock(pVbe, mp->vbeData.mode, mp->vbeData.block->PixelClock); + if (clock) + mp->vbeData.block->PixelClock = clock; +#ifdef DEBUG + ErrorF("Setting clock %.2fMHz, closest is %.2fMHz\n", + (double)mp->vbeData.block->PixelClock / 1000000.0, + (double)clock / 1000000.0); +#endif + mp->vbeData.mode |= (1 << 11); + if (ppMode->VRefresh != 0) { + mp->vbeData.block->RefreshRate = ppMode->VRefresh * 100; + } else { + mp->vbeData.block->RefreshRate = (int)(((double)(mp->vbeData.block->PixelClock)/ + (double)(ppMode->HTotal * ppMode->VTotal)) * 100); + } + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "Attempting to use %2.2fHz refresh for mode \"%s\" (%x)\n", + (float)(((double)(mp->vbeData.block->PixelClock) / (double)(ppMode->HTotal * ppMode->VTotal))), ppMode->name, mp->vbeData.mode); +#ifdef DEBUG + ErrorF("Video Modeline: ID: 0x%x Name: %s %i %i %i %i - " + " %i %i %i %i %.2f MHz Refresh: %.2f Hz\n", + mp->vbeData.mode, ppMode->name, ppMode->HDisplay, ppMode->HSyncStart, + ppMode->HSyncEnd, ppMode->HTotal, ppMode->VDisplay, + ppMode->VSyncStart,ppMode->VSyncEnd,ppMode->VTotal, + (double)mp->vbeData.block->PixelClock/1000000.0, + (double)mp->vbeData.block->RefreshRate/100); +#endif + pMode = ppMode = pMode->next; + } while (pMode != pScrn->modes); + } +} + +void +I830PrintModes(ScrnInfoPtr scrp) +{ + DisplayModePtr p; + float hsync, refresh = 0; + char *desc, *desc2, *prefix, *uprefix; + + if (scrp == NULL) + return; + + xf86DrvMsg(scrp->scrnIndex, scrp->virtualFrom, "Virtual size is %dx%d " + "(pitch %d)\n", scrp->virtualX, scrp->virtualY, + scrp->displayWidth); + + p = scrp->modes; + if (p == NULL) + return; + + do { + desc = desc2 = ""; + if (p->HSync > 0.0) + hsync = p->HSync; + else if (p->HTotal > 0) + hsync = (float)p->Clock / (float)p->HTotal; + else + hsync = 0.0; + if (p->VTotal > 0) + refresh = hsync * 1000.0 / p->VTotal; + if (p->Flags & V_INTERLACE) { + refresh *= 2.0; + desc = " (I)"; + } + if (p->Flags & V_DBLSCAN) { + refresh /= 2.0; + desc = " (D)"; + } + if (p->VScan > 1) { + refresh /= p->VScan; + desc2 = " (VScan)"; + } + if (p->VRefresh > 0.0) + refresh = p->VRefresh; + if (p->type & M_T_BUILTIN) + prefix = "Built-in mode"; + else if (p->type & M_T_DEFAULT) + prefix = "Default mode"; + else + prefix = "Mode"; + if (p->type & M_T_USERDEF) + uprefix = "*"; + else + uprefix = " "; + if (p->name) + xf86DrvMsg(scrp->scrnIndex, X_CONFIG, + "%s%s \"%s\"\n", uprefix, prefix, p->name); + else + xf86DrvMsg(scrp->scrnIndex, X_PROBED, + "%s%s %dx%d (unnamed)\n", + uprefix, prefix, p->HDisplay, p->VDisplay); + p = p->next; + } while (p != NULL && p != scrp->modes); +} |