#Maintained by: RehabMan for: Laptop Patches #graphics_PNLF_ivy_sandy.txt # This patch enables the brightness slider in SysPrefs->Displays # and will also enable activation of sleep mode by closing # the laptop lid. # # This particular version is intended to be used with ACPIBacklight.kext # although it can also be used with AppleBacklight.kext, # provided AppleBacklight.kext is patched to recognize your # display or an injector is used to set brightness levels. # # See this thread for more information: # http://www.tonymacx86.com/hp-probook-mavericks/121031-native-brightness-working-without-blinkscreen-using-patched-applebacklight-kext.html # (also read any linked threads) # # Note: This patch should be applied to the DSDT or SSDT that defines # your integrated graphics device (always at _ADR 0x00020000) # # This patch works for both Sandy Bridge and Ivy Bridge graphics. # also reported to work with graphics prior to Sandy Bridge (eg. Arrandale) # into_all device label PNLF remove_entry; into_all device name_adr 0x00020000 code_regex (OperationRegion\s\(RMPC,\sPCI_Config[^\}]*\}) remove_matched; into device name_adr 0x00020000 insert begin OperationRegion (RMPC, PCI_Config, 0x10, 4)\n Field (RMPC, AnyAcc, NoLock, Preserve)\n {\n BAR1,32,\n }\n Device (PNLF)\n {\n // normal PNLF declares (note some of this probably not necessary)\n Name (_ADR, Zero)\n Name (_HID, EisaId ("APP0002"))\n Name (_CID, "backlight")\n Name (_UID, 10)\n Name (_STA, 0x0B)\n //define hardware register access for brightness\n // lower nibble of BAR1 is status bits and not part of the address\n OperationRegion (BRIT, SystemMemory, And(^BAR1, Not(0xF)), 0xe1184)\n Field (BRIT, AnyAcc, Lock, Preserve)\n {\n Offset(0x48250),\n LEV2, 32,\n LEVL, 32,\n Offset(0x70040),\n P0BL, 32,\n Offset(0xc8250),\n LEVW, 32,\n LEVX, 32,\n Offset(0xe1180),\n PCHL, 32,\n }\n // DEB1 special for setting KLVX at runtime...\n //Method (DEB1, 1, NotSerialized)\n //{\n // Store(Arg0, KLVX)\n //}\n // LMAX: use 0x710 to force OS X value\n // or use any arbitrary value\n // or use 0 to capture BIOS setting\n Name (LMAX, 0x710)\n // KMAX: defines the unscaled range in the _BCL table below\n Name (KMAX, 0x710)\n // KPCH: saved value for PCHL\n // use Ones if PCHL does not need to be set (normal)\n // use Zero if your laptop nees PCHL set on every brightness set\n // you can also use a custom value (not Ones, not Zero)\n Name(KPCH, Ones)\n // _INI deals with differences between native setting and desired\n Method (_INI, 0, NotSerialized)\n {\n // save value of PCHL for later\n If (LNot(KPCH)) { Store(PCHL, KPCH) }\n // determine LMAX to use\n If (LNot(LMAX)) { Store(ShiftRight(LEVX,16), LMAX) }\n If (LNot(LMAX)) { Store(KMAX, LMAX) }\n Store(ShiftLeft(LMAX,16), KLVX)\n If (LNotEqual(LMAX, KMAX))\n {\n // Scale all the values in _BCL to the PWM max in use\n Store(0, Local0)\n While (LLess(Local0, SizeOf(_BCL)))\n {\n Store(DerefOf(Index(_BCL,Local0)), Local1)\n Divide(Multiply(Local1,LMAX), KMAX,, Local1)\n Store(Local1, Index(_BCL,Local0))\n Increment(Local0)\n }\n // Also scale XRGL and XRGH values\n Divide(Multiply(XRGL,LMAX), KMAX,, XRGL)\n Divide(Multiply(XRGH,LMAX), KMAX,, XRGH)\n }\n // adjust values to desired LMAX\n Store(ShiftRight(LEVX,16), Local1)\n If (LNotEqual(Local1, LMAX))\n {\n Store(LEVL, Local0)\n If (LOr(LNot(Local0),LNot(Local1))) { Store(LMAX, Local0) Store(LMAX, Local1) }\n Divide(Multiply(Local0,LMAX), Local1,, Local0)\n //REVIEW: wait for vblank before setting new PWM config\n //Store(P0BL, Local7)\n //While (LEqual (P0BL, Local7)) {}\n If (LGreater(LEVL, LMAX))\n { Store(KLVX, LEVX) Store(Local0, LEVL) }\n Else\n { Store(Local0, LEVL) Store(KLVX, LEVX) }\n }\n }\n // _BCM/_BQC: set/get for brightness level\n Method (_BCM, 1, NotSerialized)\n {\n // initialize for consistent backlight level before/after sleep\n If (LAnd(LNotEqual(KPCH, Ones),LNotEqual(PCHL, KPCH))) { Store(KPCH, PCHL) }\n If (LNotEqual(LEVW, 0x80000000)) { Store (0x80000000, LEVW) }\n If (LNotEqual(LEVX, KLVX)) { Store (KLVX, LEVX) }\n // store new backlight level\n Store(Match(_BCL, MGE, Arg0, MTR, 0, 2), Local0)\n If (LEqual(Local0, Ones)) { Subtract(SizeOf(_BCL), 1, Local0) }\n If (LNotEqual(LEV2, 0x80000000)) { Store(0x80000000, LEV2) }\n Store(DerefOf(Index(_BCL, Local0)), LEVL)\n }\n Method (_BQC, 0, NotSerialized)\n {\n Store(Match(_BCL, MGE, LEVL, MTR, 0, 2), Local0)\n If (LEqual(Local0, Ones)) { Subtract(SizeOf(_BCL), 1, Local0) }\n Return(DerefOf(Index(_BCL, Local0)))\n }\n Method (_DOS, 1, NotSerialized)\n {\n // Note: Some systems have this defined in DSDT, so uncomment\n // the next line if that is the case.\n //External(^^_DOS, MethodObj)\n ^^_DOS(Arg0)\n }\n // extended _BCM/_BQC for setting "in between" levels\n Method (XBCM, 1, NotSerialized)\n {\n // initialize for consistent backlight level before/after sleep\n If (LAnd(LNotEqual(KPCH, Ones),LNotEqual(PCHL, KPCH))) { Store(KPCH, PCHL) }\n If (LNotEqual(LEVW, 0x80000000)) { Store (0x80000000, LEVW) }\n If (LNotEqual(LEVX, KLVX)) { Store (KLVX, LEVX) }\n // store new backlight level\n If (LGreater(Arg0, XRGH)) { Store(XRGH, Arg0) }\n If (LAnd(Arg0, LLess(Arg0, XRGL))) { Store(XRGL, Arg0) }\n If (LNotEqual(LEV2, 0x80000000)) { Store(0x80000000, LEV2) } \n Store(Arg0, LEVL)\n }\n Method (XBQC, 0, NotSerialized)\n {\n Store(LEVL, Local0)\n If (LGreater(Local0, XRGH)) { Store(XRGH, Local0) }\n If (LAnd(Local0, LLess(Local0, XRGL))) { Store(XRGL, Local0) }\n Return(Local0)\n }\n // Set XOPT bit 0 to disable smooth transitions\n // Set XOPT bit 1 to wait for native BacklightHandler\n // Set XOPT bit 2 to force use of native BacklightHandler\n Name (XOPT, 0x02)\n // XRGL/XRGH: defines the valid range\n Name (XRGL, 40)\n Name (XRGH, 1808)\n // KLVX is initialization value for LEVX\n Name (KLVX, 0x7100000)\n // _BCL: returns list of valid brightness levels\n // first two entries describe ac/battery power levels\n Name (_BCL, Package()\n {\n 1808,\n 479,\n 0,\n 53, 55, 57, 59,\n 62, 66, 71, 77,\n 83, 91, 99, 108,\n 119, 130, 142, 154,\n 168, 183, 198, 214,\n 232, 250, 269, 289,\n 309, 331, 354, 377,\n 401, 426, 453, 479,\n 507, 536, 566, 596,\n 627, 660, 693, 727,\n 762, 797, 834, 872,\n 910, 949, 990, 1031,\n 1073, 1115, 1159, 1204,\n 1249, 1296, 1343, 1391,\n 1440, 1490, 1541, 1592,\n 1645, 1698, 1753, 1808,\n })\n }\n end;