diff options
Diffstat (limited to 'src/g80_ddc.c')
-rw-r--r-- | src/g80_ddc.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/src/g80_ddc.c b/src/g80_ddc.c deleted file mode 100644 index bcc4bff..0000000 --- a/src/g80_ddc.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * Copyright (c) 2007 NVIDIA, Corporation - * - * 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 AUTHORS OR COPYRIGHT HOLDERS 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. - */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <strings.h> -#include <xf86DDC.h> - -#include "g80_type.h" -#include "g80_ddc.h" - -static Bool G80ReadPortMapping(int scrnIndex, G80Ptr pNv) -{ - unsigned char *table2; - unsigned char headerSize, entries; - int i; - CARD16 a; - CARD32 b; - - /* Clear the i2c map to invalid */ - for(i = 0; i < 4; i++) - pNv->i2cMap[i].dac = pNv->i2cMap[i].sor = -1; - - if(*(CARD16*)pNv->table1 != 0xaa55) goto fail; - - a = *(CARD16*)(pNv->table1 + 0x36); - table2 = (unsigned char*)pNv->table1 + a; - - if(table2[0] != 0x40) goto fail; - - b = *(CARD32*)(table2 + 6); - if(b != 0x4edcbdcb) goto fail; - - headerSize = table2[1]; - entries = table2[2]; - - for(i = 0; i < entries; i++) { - CARD32 type, port; - ORNum or; - - b = *(CARD32*)&table2[headerSize + 8*i]; - type = b & 0xf; - port = (b >> 4) & 0xf; - or = ffs((b >> 24) & 0xf) - 1; - - if(type < 4 && port != 0xf) { - switch(type) { - case 0: /* CRT */ - case 1: /* TV */ - if(pNv->i2cMap[port].dac != -1) { - xf86DrvMsg(scrnIndex, X_WARNING, - "DDC routing table corrupt! DAC %i -> %i " - "for port %i\n", - or, pNv->i2cMap[port].dac, port); - } - pNv->i2cMap[port].dac = or; - break; - case 2: /* TMDS */ - case 3: /* LVDS */ - if(pNv->i2cMap[port].sor != -1) - xf86DrvMsg(scrnIndex, X_WARNING, - "DDC routing table corrupt! SOR %i -> %i " - "for port %i\n", - or, pNv->i2cMap[port].sor, port); - pNv->i2cMap[port].sor = or; - break; - } - } - } - - xf86DrvMsg(scrnIndex, X_PROBED, "I2C map:\n"); - for(i = 0; i < 4; i++) { - if(pNv->i2cMap[i].dac != -1) - xf86DrvMsg(scrnIndex, X_PROBED, " Bus %i -> DAC%i\n", i, pNv->i2cMap[i].dac); - if(pNv->i2cMap[i].sor != -1) - xf86DrvMsg(scrnIndex, X_PROBED, " Bus %i -> SOR%i\n", i, pNv->i2cMap[i].sor); - } - - return TRUE; - -fail: - xf86DrvMsg(scrnIndex, X_ERROR, "Couldn't find the DDC routing table. " - "Mode setting will probably fail!\n"); - return FALSE; -} - -static void G80_I2CPutBits(I2CBusPtr b, int clock, int data) -{ - G80Ptr pNv = G80PTR(xf86Screens[b->scrnIndex]); - const int off = b->DriverPrivate.val; - - pNv->reg[(0x0000E138+off)/4] = 4 | clock | data << 1; -} - -static void G80_I2CGetBits(I2CBusPtr b, int *clock, int *data) -{ - G80Ptr pNv = G80PTR(xf86Screens[b->scrnIndex]); - const int off = b->DriverPrivate.val; - unsigned char val; - - val = pNv->reg[(0x0000E138+off)/4]; - *clock = !!(val & 1); - *data = !!(val & 2); -} - -static xf86MonPtr G80ProbeDDCBus(ScrnInfoPtr pScrn, int bus) -{ - G80Ptr pNv = G80PTR(pScrn); - I2CBusPtr i2c; - xf86MonPtr monInfo = NULL; - const int off = bus * 0x18; - - /* Allocate the I2C bus structure */ - i2c = xf86CreateI2CBusRec(); - if(!i2c) return NULL; - - i2c->BusName = "DDC"; - i2c->scrnIndex = pScrn->scrnIndex; - i2c->I2CPutBits = G80_I2CPutBits; - i2c->I2CGetBits = G80_I2CGetBits; - i2c->ByteTimeout = 2200; /* VESA DDC spec 3 p. 43 (+10 %) */ - i2c->StartTimeout = 550; - i2c->BitTimeout = 40; - i2c->ByteTimeout = 40; - i2c->AcknTimeout = 40; - i2c->DriverPrivate.val = off; - - if(!xf86I2CBusInit(i2c)) goto done; - - pNv->reg[(0x0000E138+off)/4] = 7; - xf86DrvMsg(pScrn->scrnIndex, X_INFO, - "Probing for EDID on I2C bus %i...\n", bus); - monInfo = xf86DoEDID_DDC2(pScrn->scrnIndex, i2c); - - pNv->reg[(0x0000E138+off)/4] = 3; - - if(monInfo) { - xf86DrvMsg(pScrn->scrnIndex, X_PROBED, - "DDC detected a %s:\n", monInfo->features.input_type ? - "DFP" : "CRT"); - xf86PrintEDID(monInfo); - } else { - xf86DrvMsg(pScrn->scrnIndex, X_INFO, " ... none found\n"); - } - -done: - xf86DestroyI2CBusRec(i2c, TRUE, TRUE); - - return monInfo; -} - -/* - * Try DDC on each bus until we find one that works. - */ -Bool G80ProbeDDC(ScrnInfoPtr pScrn) -{ - G80Ptr pNv = G80PTR(pScrn); - xf86MonPtr monInfo; - int port; - Bool flatPanel; - - if(!G80ReadPortMapping(pScrn->scrnIndex, pNv)) - return FALSE; - - for(port = 0; port < 4; port++) { - if(pNv->i2cMap[port].dac == -1 && pNv->i2cMap[port].sor == -1) - /* No outputs on this port. Skip it. */ - continue; - - monInfo = G80ProbeDDCBus(pScrn, port); - if(!monInfo) - /* No EDID on this port. */ - continue; - - flatPanel = (monInfo->features.input_type == 1); - - if(pNv->i2cMap[port].dac != -1 && - G80DispDetectLoad(pScrn, pNv->i2cMap[port].dac)) { - pNv->orType = DAC; - pNv->or = pNv->i2cMap[port].dac; - } else if(pNv->i2cMap[port].sor != -1) { - pNv->orType = SOR; - pNv->or = pNv->i2cMap[port].sor; - } else { - xf86DrvMsg(pScrn->scrnIndex, X_WARNING, - "Saw an EDID on I2C port %i but no DAC load was " - "detected and no SOR is connected to this port. Using " - "DAC%i.\n", port, - pNv->or); - pNv->orType = DAC; - pNv->or = pNv->i2cMap[port].dac; - } - - xf86DrvMsg(pScrn->scrnIndex, X_PROBED, - "Found a %s on I2C port %i, assigning %s%i\n", - flatPanel ? "flat panel" : "CRT", - port, pNv->orType == SOR ? "SOR" : "DAC", pNv->or); - - pScrn->monitor->DDC = monInfo; - xf86SetDDCproperties(pScrn, monInfo); - - return TRUE; - } - - return FALSE; -} |