| Simon Glass | 9bd4e9d | 2020-09-22 12:45:12 -0600 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright (C) 2020 Google LLC |
| 4 | */ |
| 5 | |
| 6 | #include <common.h> |
| 7 | #include <acpi/acpigen.h> |
| 8 | #include <acpi/acpi_table.h> |
| 9 | #include <asm/acpigen.h> |
| 10 | |
| 11 | void acpigen_write_empty_pct(struct acpi_ctx *ctx) |
| 12 | { |
| 13 | /* |
| 14 | * Name (_PCT, Package (0x02) |
| 15 | * { |
| 16 | * ResourceTemplate () |
| 17 | * { |
| 18 | * Register (FFixedHW, |
| 19 | * 0x00, // Bit Width |
| 20 | * 0x00, // Bit Offset |
| 21 | * 0x0000000000000000, // Address |
| 22 | * ,) |
| 23 | * }, |
| 24 | * |
| 25 | * ResourceTemplate () |
| 26 | * { |
| 27 | * Register (FFixedHW, |
| 28 | * 0x00, // Bit Width |
| 29 | * 0x00, // Bit Offset |
| 30 | * 0x0000000000000000, // Address |
| 31 | * ,) |
| 32 | * } |
| 33 | * }) |
| 34 | */ |
| 35 | static char stream[] = { |
| 36 | /* 00000030 "0._PCT.," */ |
| 37 | 0x08, 0x5f, 0x50, 0x43, 0x54, 0x12, 0x2c, |
| 38 | /* 00000038 "........" */ |
| 39 | 0x02, 0x11, 0x14, 0x0a, 0x11, 0x82, 0x0c, 0x00, |
| 40 | /* 00000040 "........" */ |
| 41 | 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 42 | /* 00000048 "....y..." */ |
| 43 | 0x00, 0x00, 0x00, 0x00, 0x79, 0x00, 0x11, 0x14, |
| 44 | /* 00000050 "........" */ |
| 45 | 0x0a, 0x11, 0x82, 0x0c, 0x00, 0x7f, 0x00, 0x00, |
| 46 | /* 00000058 "........" */ |
| 47 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 48 | 0x00, 0x79, 0x00 |
| 49 | }; |
| 50 | acpigen_emit_stream(ctx, stream, ARRAY_SIZE(stream)); |
| 51 | } |
| 52 | |
| 53 | void acpigen_write_empty_ptc(struct acpi_ctx *ctx) |
| 54 | { |
| 55 | /* |
| 56 | * Name (_PTC, Package (0x02) |
| 57 | * { |
| 58 | * ResourceTemplate () |
| 59 | * { |
| 60 | * Register (FFixedHW, |
| 61 | * 0x00, // Bit Width |
| 62 | * 0x00, // Bit Offset |
| 63 | * 0x0000000000000000, // Address |
| 64 | * ,) |
| 65 | * }, |
| 66 | * |
| 67 | * ResourceTemplate () |
| 68 | * { |
| 69 | * Register (FFixedHW, |
| 70 | * 0x00, // Bit Width |
| 71 | * 0x00, // Bit Offset |
| 72 | * 0x0000000000000000, // Address |
| 73 | * ,) |
| 74 | * } |
| 75 | * }) |
| 76 | */ |
| 77 | struct acpi_gen_regaddr addr = { |
| 78 | .space_id = ACPI_ADDRESS_SPACE_FIXED, |
| 79 | .bit_width = 0, |
| 80 | .bit_offset = 0, |
| 81 | .access_size = 0, |
| 82 | .addrl = 0, |
| 83 | .addrh = 0, |
| 84 | }; |
| 85 | |
| 86 | acpigen_write_name(ctx, "_PTC"); |
| 87 | acpigen_write_package(ctx, 2); |
| 88 | |
| 89 | /* ControlRegister */ |
| 90 | acpigen_write_register_resource(ctx, &addr); |
| 91 | |
| 92 | /* StatusRegister */ |
| 93 | acpigen_write_register_resource(ctx, &addr); |
| 94 | |
| 95 | acpigen_pop_len(ctx); |
| 96 | } |