components/hardware/hwregs.c

192  *              MaxBitWidth         - Max BitWidth supported (32 or 64)
211      *  1. Detected if BitOffset is 0 and BitWidth is 8/16/32/64;
212      *  2. AccessSize field is ignored and BitWidth field is used for
215      *  1. Detected if BitOffset is not 0 or BitWidth is not 8/16/32/64;
218      *  3. BitOffset/BitWidth fields are used to describe the "region".
223     if (!Reg->BitOffset && Reg->BitWidth &&
224         ACPI_IS_POWER_OF_TWO (Reg->BitWidth) &&
225         ACPI_IS_ALIGNED (Reg->BitWidth, 8))
227         AccessBitWidth = Reg->BitWidth;
236             Reg->BitOffset + Reg->BitWidth);
275  *              MaxBitWidth         - Max BitWidth supported (32 or 64)
282  *              pointer, Address, SpaceId, BitWidth, and BitOffset.
292     UINT8                   BitWidth;
333     /* Validate the BitWidth, convert AccessWidth into number of bits */
336     BitWidth = ACPI_ROUND_UP (Reg->BitOffset + Reg->BitWidth, AccessWidth);
337     if (MaxBitWidth < BitWidth)
341             MaxBitWidth, BitWidth));
373     UINT32                  BitWidth;
398     BitWidth = Reg->BitOffset + Reg->BitWidth;
406     while (BitWidth)
437         BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;
471     UINT32                  BitWidth;
492     BitWidth = Reg->BitOffset + Reg->BitWidth;
500     while (BitWidth)
533         BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;