1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2 3/* 4 * Poll a GPIO until it goes to the specified state 5 * Arg0 == GPIO # 6 * Arg1 == state (0 or 1) 7 * Arg2 == timeout in ms 8 */ 9Method (GPPL, 3, Serialized) 10{ 11 Local0 = 0 12 Local1 = Arg2 * 10 13 While (Local0 < Local1) 14 { 15 If (\_SB.PCI0.GRXS (Arg0) == Arg1) { 16 Return (0) 17 } Else { 18 Local0++ 19 } 20 Stall (100) 21 } 22 23 If (Local0 == Arg2) { 24 Printf("[ERROR] GPPL for %o timed out", Arg0) 25 } 26 27 Return (0xFF) 28} 29 30/* Convert from 32-bit integer to 4-byte buffer (little-endian) */ 31Method (ITOB, 1) 32{ 33 Local0 = Buffer(4) { 0, 0, 0, 0 } 34 Local0[0] = Arg0 & 0xFF 35 Local0[1] = (Arg0 >> 8) & 0xFF 36 Local0[2] = (Arg0 >> 16) & 0xFF 37 Local0[3] = (Arg0 >> 24) & 0xFF 38 Return (Local0) 39} 40 41/* Convert from 64-bit integer to 8-byte buffer (little-endian) */ 42Method (LTOB, 1) 43{ 44 Local0 = Buffer(8) { 0, 0, 0, 0, 0, 0, 0, 0 } 45 Local0[0] = Arg0 & 0xFF 46 Local0[1] = (Arg0 >> 8) & 0xFF 47 Local0[2] = (Arg0 >> 16) & 0xFF 48 Local0[3] = (Arg0 >> 24) & 0xFF 49 Local0[4] = (Arg0 >> 32) & 0xFF 50 Local0[5] = (Arg0 >> 40) & 0xFF 51 Local0[6] = (Arg0 >> 48) & 0xFF 52 Local0[7] = (Arg0 >> 56) & 0xFF 53 Return (Local0) 54} 55