| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #define _IIO_DEVICE_NAME(str, skt, stk) str##skt##stk |
| #define IIO_DEVICE_NAME(str, skt, stk) _IIO_DEVICE_NAME(str, skt, stk) |
| #define IIO_RESOURCE_NAME(res, str, skt, stk) res##str##skt##stk |
| |
| #define STR(s) #s |
| #define _IIO_DEVICE_UID(str, skt, stk) STR(str##skt##stk) |
| #define IIO_DEVICE_UID(str, skt, stk) _IIO_DEVICE_UID(str, skt, stk) |
| |
| Device (IIO_DEVICE_NAME(DEVPREFIX, SOCKET, STACK)) |
| { |
| Name (_HID, EisaId ("PNP0A08") /* PCI Express Bus */) |
| Name (_CID, EisaId ("PNP0A03") /* PCI Bus */) |
| Name (_UID, IIO_DEVICE_UID(DEVPREFIX, SOCKET, STACK)) |
| Method (_STA, 0, NotSerialized) |
| { |
| /* |
| * _CRS is being generated by SSDT for available stacks only and |
| * when missing the stack isn't available. |
| */ |
| If (CondRefOf (_CRS)) |
| { |
| Return (0xf) |
| } |
| Else |
| { |
| Return (0) |
| } |
| } |
| Method (_PRT, 0, NotSerialized) |
| { |
| Return (\_SB.PRTID) |
| } |
| Name (SUPP, 0x00) |
| Name (CTRL, 0x00) |
| Name (_PXM, SOCKET) /* _PXM: Device Proximity */ |
| Method (_OSC, 4, NotSerialized) |
| { |
| CreateDWordField (Arg3, 0x00, CDW1) |
| If (Arg0 == ToUUID ("33db4d5b-1ff7-401c-9657-7441c03dd766") /* PCI Host Bridge Device */) |
| { |
| If (Arg2 < 0x03) /* Number of DWORDs in Arg3 must be at least 3 */ |
| { |
| CDW1 |= 0x02 /* Unknown failure */ |
| Return (Arg3) |
| } |
| CreateDWordField (Arg3, 0x04, CDW2) |
| CreateDWordField (Arg3, 0x08, CDW3) |
| |
| SUPP = CDW2 |
| CTRL = CDW3 |
| If (SUPP & 0x16 != 0x16) |
| { |
| CTRL &= 0x1E |
| } |
| /* Never allow SHPC (no SHPC controller in system) */ |
| CTRL &= 0x1D |
| /* Disable Native PCIe AER handling from OS */ |
| CTRL &= 0x17 |
| |
| If (Arg1 != 1) /* unknown revision */ |
| { |
| CDW1 |= 0x08 |
| } |
| If (CDW3 != CTRL) /* capabilities bits were masked */ |
| { |
| CDW1 |= 0x10 |
| } |
| CDW3 = CTRL |
| Return (Arg3) |
| } |
| Else |
| { |
| /* indicate unrecognized UUID */ |
| CDW1 |= 0x04 |
| IO80 = 0xEE |
| Return (Arg3) |
| } |
| } |
| } |