components/hardware/hwregs.c

229     else if (Reg->AccessWidth)
231         AccessBitWidth = ACPI_ACCESS_BIT_WIDTH (Reg->AccessWidth);
293     UINT8                   AccessWidth;
324     /* Validate the AccessWidth */
326     if (Reg->AccessWidth > 4)
329             "Unsupported register access width: 0x%X", Reg->AccessWidth));
333     /* Validate the BitWidth, convert AccessWidth into number of bits */
335     AccessWidth = AcpiHwGetAccessBitWidth (*Address, Reg, MaxBitWidth);
336     BitWidth = ACPI_ROUND_UP (Reg->BitOffset + Reg->BitWidth, AccessWidth);
372     UINT8                   AccessWidth;
393      * Initialize entire 64-bit return value to zero, convert AccessWidth
397     AccessWidth = AcpiHwGetAccessBitWidth (Address, Reg, 64);
408         if (BitOffset >= AccessWidth)
411             BitOffset -= AccessWidth;
418                     Address + Index * ACPI_DIV_8 (AccessWidth),
419                     &Value64, AccessWidth);
424                     Address + Index * ACPI_DIV_8 (AccessWidth),
425                     &Value32, AccessWidth);
431          * Use offset style bit writes because "Index * AccessWidth" is
434         ACPI_SET_BITS (Value, Index * AccessWidth,
435             ACPI_MASK_BITS_ABOVE_64 (AccessWidth), Value64);
437         BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;
443         ACPI_FORMAT_UINT64 (*Value), AccessWidth,
470     UINT8                   AccessWidth;
489     /* Convert AccessWidth into number of bits based */
491     AccessWidth = AcpiHwGetAccessBitWidth (Address, Reg, 64);
503          * Use offset style bit reads because "Index * AccessWidth" is
506         Value64 = ACPI_GET_BITS (&Value, Index * AccessWidth,
507             ACPI_MASK_BITS_ABOVE_64 (AccessWidth));
509         if (BitOffset >= AccessWidth)
511             BitOffset -= AccessWidth;
518                     Address + Index * ACPI_DIV_8 (AccessWidth),
519                     Value64, AccessWidth);
524                     Address + Index * ACPI_DIV_8 (AccessWidth),
525                     (UINT32) Value64, AccessWidth);
530          * Index * AccessWidth is ensured to be less than 32-bits by
533         BitWidth -= BitWidth > AccessWidth ? AccessWidth : BitWidth;
539         ACPI_FORMAT_UINT64 (Value), AccessWidth,