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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Poll a GPIO until it goes to the specified state
* Arg0 == GPIO #
* Arg1 == state (0 or 1)
* Arg2 == timeout in ms
*/
Method (GPPL, 3, Serialized)
{
Local0 = 0
Local1 = Arg2 * 10
While (Local0 < Local1)
{
If (\_SB.PCI0.GRXS (Arg0) == Arg1) {
Return (0)
} Else {
Local0++
}
Stall (100)
}
If (Local0 == Arg2) {
Printf("[ERROR] GPPL for %o timed out", Arg0)
}
Return (0xFF)
}
/* Convert from 32-bit integer to 4-byte buffer (little-endian) */
Method (ITOB, 1)
{
Local0 = Buffer(4) { 0, 0, 0, 0 }
Local0[0] = Arg0 & 0xFF
Local0[1] = (Arg0 >> 8) & 0xFF
Local0[2] = (Arg0 >> 16) & 0xFF
Local0[3] = (Arg0 >> 24) & 0xFF
Return (Local0)
}
/* Convert from 64-bit integer to 8-byte buffer (little-endian) */
Method (LTOB, 1)
{
Local0 = Buffer(8) { 0, 0, 0, 0, 0, 0, 0, 0 }
Local0[0] = Arg0 & 0xFF
Local0[1] = (Arg0 >> 8) & 0xFF
Local0[2] = (Arg0 >> 16) & 0xFF
Local0[3] = (Arg0 >> 24) & 0xFF
Local0[4] = (Arg0 >> 32) & 0xFF
Local0[5] = (Arg0 >> 40) & 0xFF
Local0[6] = (Arg0 >> 48) & 0xFF
Local0[7] = (Arg0 >> 56) & 0xFF
Return (Local0)
}
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