^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Module Name: rsutils - Utilities for the resource manager
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <acpi/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "accommon.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "acnamesp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "acresrc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define _COMPONENT ACPI_RESOURCES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) ACPI_MODULE_NAME("rsutils")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * FUNCTION: acpi_rs_decode_bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * PARAMETERS: mask - Bitmask to decode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * list - Where the converted list is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * RETURN: Count of bits set (length of list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * DESCRIPTION: Convert a bit mask into a list of values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) u8 acpi_rs_decode_bitmask(u16 mask, u8 * list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) u8 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) u8 bit_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* Decode the mask bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) for (i = 0, bit_count = 0; mask; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (mask & 0x0001) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) list[bit_count] = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) bit_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) mask >>= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return (bit_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * FUNCTION: acpi_rs_encode_bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * PARAMETERS: list - List of values to encode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * count - Length of list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * RETURN: Encoded bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * DESCRIPTION: Convert a list of values to an encoded bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u16 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* Encode the list into a single bitmask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) for (i = 0, mask = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) mask |= (0x1 << list[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return (mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * FUNCTION: acpi_rs_move_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * PARAMETERS: destination - Pointer to the destination descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * source - Pointer to the source descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * item_count - How many items to move
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * move_type - Byte width
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * RETURN: None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * DESCRIPTION: Move multiple data items from one descriptor to another. Handles
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * alignment issues and endian issues if necessary, as configured
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * via the ACPI_MOVE_* macros. (This is why a memcpy is not used)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /* One move per item */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) for (i = 0; i < item_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) switch (move_type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * For the 8-bit case, we can perform the move all at once
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * since there are no alignment or endian issues
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) case ACPI_RSC_MOVE8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) case ACPI_RSC_MOVE_GPIO_RES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) case ACPI_RSC_MOVE_SERIAL_VEN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) case ACPI_RSC_MOVE_SERIAL_RES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) memcpy(destination, source, item_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * 16-, 32-, and 64-bit cases must use the move macros that perform
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * endian conversion and/or accommodate hardware that cannot perform
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * misaligned memory transfers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) case ACPI_RSC_MOVE16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) case ACPI_RSC_MOVE_GPIO_PIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) &ACPI_CAST_PTR(u16, source)[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) case ACPI_RSC_MOVE32:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) &ACPI_CAST_PTR(u32, source)[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) case ACPI_RSC_MOVE64:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) &ACPI_CAST_PTR(u64, source)[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * FUNCTION: acpi_rs_set_resource_length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) * PARAMETERS: total_length - Length of the AML descriptor, including
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) * the header and length fields.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * aml - Pointer to the raw AML descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * RETURN: None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * DESCRIPTION: Set the resource_length field of an AML
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * resource descriptor, both Large and Small descriptors are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) * supported automatically. Note: Descriptor Type field must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * be valid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) acpi_rs_set_resource_length(acpi_rsdesc_size total_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) union aml_resource *aml)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) acpi_rs_length resource_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /* Length is the total descriptor length minus the header length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) resource_length = (acpi_rs_length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) (total_length - acpi_ut_get_resource_header_length(aml));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) /* Length is stored differently for large and small descriptors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* Large descriptor -- bytes 1-2 contain the 16-bit length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ACPI_MOVE_16_TO_16(&aml->large_header.resource_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) &resource_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * Small descriptor -- bits 2:0 of byte 0 contain the length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * Clear any existing length, preserving descriptor type bits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) aml->small_header.descriptor_type = (u8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) ((aml->small_header.descriptor_type &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) | resource_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * FUNCTION: acpi_rs_set_resource_header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * PARAMETERS: descriptor_type - Byte to be inserted as the type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) * total_length - Length of the AML descriptor, including
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * the header and length fields.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * aml - Pointer to the raw AML descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * RETURN: None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * DESCRIPTION: Set the descriptor_type and resource_length fields of an AML
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * resource descriptor, both Large and Small descriptors are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * supported automatically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) acpi_rs_set_resource_header(u8 descriptor_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) acpi_rsdesc_size total_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) union aml_resource *aml)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) /* Set the Resource Type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) aml->small_header.descriptor_type = descriptor_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) /* Set the Resource Length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) acpi_rs_set_resource_length(total_length, aml);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * FUNCTION: acpi_rs_strcpy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * PARAMETERS: destination - Pointer to the destination string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) * source - Pointer to the source string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * RETURN: String length, including NULL terminator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * DESCRIPTION: Local string copy that returns the string length, saving a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * strcpy followed by a strlen.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static u16 acpi_rs_strcpy(char *destination, char *source)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) u16 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) for (i = 0; source[i]; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) destination[i] = source[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) destination[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /* Return string length including the NULL terminator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return ((u16) (i + 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * FUNCTION: acpi_rs_get_resource_source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * PARAMETERS: resource_length - Length field of the descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * minimum_length - Minimum length of the descriptor (minus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * any optional fields)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * resource_source - Where the resource_source is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * aml - Pointer to the raw AML descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * string_ptr - (optional) where to store the actual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * resource_source string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * RETURN: Length of the string plus NULL terminator, rounded up to native
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * word boundary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * to an internal resource descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) acpi_rs_length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) acpi_rs_get_resource_source(acpi_rs_length resource_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) acpi_rs_length minimum_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct acpi_resource_source * resource_source,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) union aml_resource * aml, char *string_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) acpi_rsdesc_size total_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) u8 *aml_resource_source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) total_length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) resource_length + sizeof(struct aml_resource_large_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * resource_source is present if the length of the descriptor is longer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * than the minimum length.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * Note: Some resource descriptors will have an additional null, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * we add 1 to the minimum length.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) if (total_length > (acpi_rsdesc_size)(minimum_length + 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* Get the resource_source_index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) resource_source->index = aml_resource_source[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) resource_source->string_ptr = string_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) if (!string_ptr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * String destination pointer is not specified; Set the String
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * pointer to the end of the current resource_source structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) resource_source->string_ptr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) ACPI_ADD_PTR(char, resource_source,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) sizeof(struct acpi_resource_source));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * In order for the Resource length to be a multiple of the native
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * word, calculate the length of the string (+1 for NULL terminator)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * and expand to the next word multiple.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * Zero the entire area of the buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) total_length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) (u32)strlen(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) total_length = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) memset(resource_source->string_ptr, 0, total_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) /* Copy the resource_source string to the destination */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) resource_source->string_length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) acpi_rs_strcpy(resource_source->string_ptr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ACPI_CAST_PTR(char,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) &aml_resource_source[1]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) return ((acpi_rs_length)total_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) /* resource_source is not present */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) resource_source->index = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) resource_source->string_length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) resource_source->string_ptr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) * FUNCTION: acpi_rs_set_resource_source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * PARAMETERS: aml - Pointer to the raw AML descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * minimum_length - Minimum length of the descriptor (minus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * any optional fields)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * resource_source - Internal resource_source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * RETURN: Total length of the AML descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * DESCRIPTION: Convert an optional resource_source from internal format to a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * raw AML resource descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) acpi_rsdesc_size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) acpi_rs_set_resource_source(union aml_resource *aml,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) acpi_rs_length minimum_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) struct acpi_resource_source *resource_source)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) u8 *aml_resource_source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) acpi_rsdesc_size descriptor_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) descriptor_length = minimum_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) /* Non-zero string length indicates presence of a resource_source */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) if (resource_source->string_length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) /* Point to the end of the AML descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) /* Copy the resource_source_index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) aml_resource_source[0] = (u8) resource_source->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) /* Copy the resource_source string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) strcpy(ACPI_CAST_PTR(char, &aml_resource_source[1]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) resource_source->string_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) * Add the length of the string (+ 1 for null terminator) to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) * final descriptor length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) descriptor_length += ((acpi_rsdesc_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) resource_source->string_length + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) /* Return the new total length of the AML descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return (descriptor_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * FUNCTION: acpi_rs_get_prt_method_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * PARAMETERS: node - Device node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * ret_buffer - Pointer to a buffer structure for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * results
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) * DESCRIPTION: This function is called to get the _PRT value of an object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) * contained in an object specified by the handle passed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * If the function fails an appropriate status will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * and the contents of the callers buffer is undefined.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) acpi_rs_get_prt_method_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct acpi_buffer *ret_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) ACPI_FUNCTION_TRACE(rs_get_prt_method_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) /* Parameters guaranteed valid by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) /* Execute the method, no parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) acpi_ut_evaluate_object(node, METHOD_NAME__PRT, ACPI_BTYPE_PACKAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) &obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) * Create a resource linked list from the byte stream buffer that comes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) * back from the _CRS method execution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) status = acpi_rs_create_pci_routing_table(obj_desc, ret_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) /* On exit, we must delete the object returned by evaluate_object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) * FUNCTION: acpi_rs_get_crs_method_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) * PARAMETERS: node - Device node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) * ret_buffer - Pointer to a buffer structure for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) * results
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) * DESCRIPTION: This function is called to get the _CRS value of an object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) * contained in an object specified by the handle passed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * If the function fails an appropriate status will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * and the contents of the callers buffer is undefined.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) struct acpi_buffer *ret_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) ACPI_FUNCTION_TRACE(rs_get_crs_method_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) /* Parameters guaranteed valid by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) /* Execute the method, no parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) acpi_ut_evaluate_object(node, METHOD_NAME__CRS, ACPI_BTYPE_BUFFER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) &obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) * Make the call to create a resource linked list from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) * byte stream buffer that comes back from the _CRS method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) * execution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) /* On exit, we must delete the object returned by evaluateObject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) * FUNCTION: acpi_rs_get_prs_method_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) * PARAMETERS: node - Device node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) * ret_buffer - Pointer to a buffer structure for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * results
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) * DESCRIPTION: This function is called to get the _PRS value of an object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * contained in an object specified by the handle passed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) * If the function fails an appropriate status will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) * and the contents of the callers buffer is undefined.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) struct acpi_buffer *ret_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) ACPI_FUNCTION_TRACE(rs_get_prs_method_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) /* Parameters guaranteed valid by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) /* Execute the method, no parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) acpi_ut_evaluate_object(node, METHOD_NAME__PRS, ACPI_BTYPE_BUFFER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) &obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) * Make the call to create a resource linked list from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * byte stream buffer that comes back from the _CRS method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * execution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) /* On exit, we must delete the object returned by evaluateObject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) * FUNCTION: acpi_rs_get_aei_method_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) * PARAMETERS: node - Device node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) * ret_buffer - Pointer to a buffer structure for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) * results
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) * DESCRIPTION: This function is called to get the _AEI value of an object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) * contained in an object specified by the handle passed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) * If the function fails an appropriate status will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) * and the contents of the callers buffer is undefined.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) acpi_rs_get_aei_method_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) struct acpi_buffer *ret_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) ACPI_FUNCTION_TRACE(rs_get_aei_method_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) /* Parameters guaranteed valid by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) /* Execute the method, no parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) acpi_ut_evaluate_object(node, METHOD_NAME__AEI, ACPI_BTYPE_BUFFER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) &obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) * Make the call to create a resource linked list from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) * byte stream buffer that comes back from the _CRS method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) * execution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) /* On exit, we must delete the object returned by evaluateObject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) * FUNCTION: acpi_rs_get_method_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) * PARAMETERS: handle - Handle to the containing object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) * path - Path to method, relative to Handle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) * ret_buffer - Pointer to a buffer structure for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * results
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) * DESCRIPTION: This function is called to get the _CRS or _PRS value of an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) * object contained in an object specified by the handle passed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) * If the function fails an appropriate status will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) * and the contents of the callers buffer is undefined.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) acpi_rs_get_method_data(acpi_handle handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) const char *path, struct acpi_buffer *ret_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) ACPI_FUNCTION_TRACE(rs_get_method_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) /* Parameters guaranteed valid by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) /* Execute the method, no parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) acpi_ut_evaluate_object(ACPI_CAST_PTR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) (struct acpi_namespace_node, handle), path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) ACPI_BTYPE_BUFFER, &obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) * Make the call to create a resource linked list from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) * byte stream buffer that comes back from the method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) * execution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) /* On exit, we must delete the object returned by evaluate_object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) * FUNCTION: acpi_rs_set_srs_method_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) * PARAMETERS: node - Device node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) * in_buffer - Pointer to a buffer structure of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) * parameter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) * DESCRIPTION: This function is called to set the _SRS of an object contained
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) * in an object specified by the handle passed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) * If the function fails an appropriate status will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) * and the contents of the callers buffer is undefined.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) * Note: Parameters guaranteed valid by caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) struct acpi_buffer *in_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) struct acpi_evaluate_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) union acpi_operand_object *args[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) struct acpi_buffer buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) ACPI_FUNCTION_TRACE(rs_set_srs_method_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) /* Allocate and initialize the evaluation information block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (!info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) return_ACPI_STATUS(AE_NO_MEMORY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) info->prefix_node = node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) info->relative_pathname = METHOD_NAME__SRS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) info->parameters = args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) info->flags = ACPI_IGNORE_RETURN_VALUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) * The in_buffer parameter will point to a linked list of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) * resource parameters. It needs to be formatted into a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) * byte stream to be sent in as an input parameter to _SRS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) * Convert the linked list into a byte stream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) status = acpi_rs_create_aml_resources(in_buffer, &buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) goto cleanup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) /* Create and initialize the method parameter object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) if (!args[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) * Must free the buffer allocated above (otherwise it is freed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) * later)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) ACPI_FREE(buffer.pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) status = AE_NO_MEMORY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) goto cleanup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) args[0]->buffer.length = (u32) buffer.length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) args[0]->buffer.pointer = buffer.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) args[0]->common.flags = AOPOBJ_DATA_VALID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) args[1] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) /* Execute the method, no return value is expected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) status = acpi_ns_evaluate(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) /* Clean up and return the status from acpi_ns_evaluate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) acpi_ut_remove_reference(args[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) cleanup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) ACPI_FREE(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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