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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | // SPDX-License-Identifier: GPL-2.0-or-later /* * SiS 300/540/630[S]/730[S] * SiS 315[E|PRO]/550/[M]65x/[M]66x[F|M|G]X/[M]74x[GX]/330/[M]76x[GX] * XGI V3XT/V5/V8, Z7 * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3 * * Linux kernel specific extensions to init.c/init301.c * * Copyright (C) 2001-2005 Thomas Winischhofer, Vienna, Austria. * * Author: Thomas Winischhofer <thomas@winischhofer.net> */ #include "initdef.h" #include "vgatypes.h" #include "vstruct.h" #include <linux/types.h> #include <linux/fb.h> int sisfb_mode_rate_to_dclock(struct SiS_Private *SiS_Pr, unsigned char modeno, unsigned char rateindex); int sisfb_mode_rate_to_ddata(struct SiS_Private *SiS_Pr, unsigned char modeno, unsigned char rateindex, struct fb_var_screeninfo *var); bool sisfb_gettotalfrommode(struct SiS_Private *SiS_Pr, unsigned char modeno, int *htotal, int *vtotal, unsigned char rateindex); extern bool SiSInitPtr(struct SiS_Private *SiS_Pr); extern bool SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo, unsigned short *ModeIdIndex); extern void SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata, int xres, int yres, struct fb_var_screeninfo *var, bool writeres); int sisfb_mode_rate_to_dclock(struct SiS_Private *SiS_Pr, unsigned char modeno, unsigned char rateindex) { unsigned short ModeNo = modeno; unsigned short ModeIdIndex = 0, ClockIndex = 0; unsigned short RRTI = 0; int Clock; if(!SiSInitPtr(SiS_Pr)) return 65000; if(rateindex > 0) rateindex--; #ifdef CONFIG_FB_SIS_315 switch(ModeNo) { case 0x5a: ModeNo = 0x50; break; case 0x5b: ModeNo = 0x56; } #endif if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) { printk(KERN_ERR "Could not find mode %x\n", ModeNo); return 65000; } RRTI = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex; if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & HaveWideTiming) { if(SiS_Pr->SiS_UseWide == 1) { /* Wide screen: Ignore rateindex */ ClockIndex = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRTVCLK_WIDE; } else { RRTI += rateindex; ClockIndex = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRTVCLK_NORM; } } else { RRTI += rateindex; ClockIndex = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRTVCLK; } Clock = SiS_Pr->SiS_VCLKData[ClockIndex].CLOCK * 1000; return Clock; } int sisfb_mode_rate_to_ddata(struct SiS_Private *SiS_Pr, unsigned char modeno, unsigned char rateindex, struct fb_var_screeninfo *var) { unsigned short ModeNo = modeno; unsigned short ModeIdIndex = 0, index = 0, RRTI = 0; int j; if(!SiSInitPtr(SiS_Pr)) return 0; if(rateindex > 0) rateindex--; #ifdef CONFIG_FB_SIS_315 switch(ModeNo) { case 0x5a: ModeNo = 0x50; break; case 0x5b: ModeNo = 0x56; } #endif if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) return 0; RRTI = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex; if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & HaveWideTiming) { if(SiS_Pr->SiS_UseWide == 1) { /* Wide screen: Ignore rateindex */ index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_WIDE; } else { RRTI += rateindex; index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_NORM; } } else { RRTI += rateindex; index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC; } SiS_Generic_ConvertCRData(SiS_Pr, (unsigned char *)&SiS_Pr->SiS_CRT1Table[index].CR[0], SiS_Pr->SiS_RefIndex[RRTI].XRes, SiS_Pr->SiS_RefIndex[RRTI].YRes, var, false); if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & 0x8000) var->sync &= ~FB_SYNC_VERT_HIGH_ACT; else var->sync |= FB_SYNC_VERT_HIGH_ACT; if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & 0x4000) var->sync &= ~FB_SYNC_HOR_HIGH_ACT; else var->sync |= FB_SYNC_HOR_HIGH_ACT; var->vmode = FB_VMODE_NONINTERLACED; if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & 0x0080) var->vmode = FB_VMODE_INTERLACED; else { j = 0; while(SiS_Pr->SiS_EModeIDTable[j].Ext_ModeID != 0xff) { if(SiS_Pr->SiS_EModeIDTable[j].Ext_ModeID == SiS_Pr->SiS_RefIndex[RRTI].ModeID) { if(SiS_Pr->SiS_EModeIDTable[j].Ext_ModeFlag & DoubleScanMode) { var->vmode = FB_VMODE_DOUBLE; } break; } j++; } } if((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { #if 0 /* Do this? */ var->upper_margin <<= 1; var->lower_margin <<= 1; var->vsync_len <<= 1; #endif } else if((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) { var->upper_margin >>= 1; var->lower_margin >>= 1; var->vsync_len >>= 1; } return 1; } bool sisfb_gettotalfrommode(struct SiS_Private *SiS_Pr, unsigned char modeno, int *htotal, int *vtotal, unsigned char rateindex) { unsigned short ModeNo = modeno; unsigned short ModeIdIndex = 0, CRT1Index = 0; unsigned short RRTI = 0; unsigned char sr_data, cr_data, cr_data2; if(!SiSInitPtr(SiS_Pr)) return false; if(rateindex > 0) rateindex--; #ifdef CONFIG_FB_SIS_315 switch(ModeNo) { case 0x5a: ModeNo = 0x50; break; case 0x5b: ModeNo = 0x56; } #endif if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) return false; RRTI = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex; if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & HaveWideTiming) { if(SiS_Pr->SiS_UseWide == 1) { /* Wide screen: Ignore rateindex */ CRT1Index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_WIDE; } else { RRTI += rateindex; CRT1Index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_NORM; } } else { RRTI += rateindex; CRT1Index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC; } sr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[14]; cr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[0]; *htotal = (((cr_data & 0xff) | ((unsigned short) (sr_data & 0x03) << 8)) + 5) * 8; sr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[13]; cr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[6]; cr_data2 = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[7]; *vtotal = ((cr_data & 0xFF) | ((unsigned short)(cr_data2 & 0x01) << 8) | ((unsigned short)(cr_data2 & 0x20) << 4) | ((unsigned short)(sr_data & 0x01) << 10)) + 2; if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & InterlaceMode) *vtotal *= 2; return true; } |