Rev 2071 | Rev 3386 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1896 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Jakub Jermar |
| 1896 | jermar | 3 | * All rights reserved. |
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | /** @addtogroup ofw |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | /** |
||
| 33 | * @file |
||
| 34 | * @brief FHC 'reg' and 'ranges' properties handling. |
||
| 35 | * |
||
| 36 | */ |
||
| 37 | |||
| 38 | #include <genarch/ofw/ofw_tree.h> |
||
| 1909 | jermar | 39 | #include <arch/drivers/fhc.h> |
| 1896 | jermar | 40 | #include <arch/memstr.h> |
| 41 | #include <func.h> |
||
| 42 | #include <panic.h> |
||
| 43 | #include <macros.h> |
||
| 44 | |||
| 45 | bool ofw_fhc_apply_ranges(ofw_tree_node_t *node, ofw_fhc_reg_t *reg, uintptr_t *pa) |
||
| 46 | { |
||
| 47 | ofw_tree_property_t *prop; |
||
| 48 | ofw_fhc_range_t *range; |
||
| 49 | count_t ranges; |
||
| 50 | |||
| 51 | prop = ofw_tree_getprop(node, "ranges"); |
||
| 52 | if (!prop) |
||
| 53 | return false; |
||
| 54 | |||
| 55 | ranges = prop->size / sizeof(ofw_fhc_range_t); |
||
| 56 | range = prop->value; |
||
| 57 | |||
| 2745 | decky | 58 | unsigned int i; |
| 1896 | jermar | 59 | |
| 60 | for (i = 0; i < ranges; i++) { |
||
| 61 | if (overlaps(reg->addr, reg->size, range[i].child_base, range[i].size)) { |
||
| 62 | uintptr_t addr; |
||
| 63 | |||
| 64 | addr = range[i].parent_base + (reg->addr - range[i].child_base); |
||
| 65 | if (!node->parent->parent) { |
||
| 66 | *pa = addr; |
||
| 67 | return true; |
||
| 68 | } |
||
| 69 | if (strcmp(ofw_tree_node_name(node->parent), "central") != 0) |
||
| 70 | panic("Unexpected parent node: %s.\n", ofw_tree_node_name(node->parent)); |
||
| 71 | |||
| 72 | ofw_central_reg_t central_reg; |
||
| 73 | |||
| 74 | central_reg.addr = addr; |
||
| 75 | central_reg.size = reg->size; |
||
| 76 | |||
| 77 | return ofw_central_apply_ranges(node->parent, ¢ral_reg, pa); |
||
| 78 | } |
||
| 79 | } |
||
| 80 | |||
| 81 | return false; |
||
| 82 | } |
||
| 83 | |||
| 84 | bool ofw_central_apply_ranges(ofw_tree_node_t *node, ofw_central_reg_t *reg, uintptr_t *pa) |
||
| 85 | { |
||
| 86 | if (node->parent->parent) |
||
| 87 | panic("Unexpected parent node: %s.\n", ofw_tree_node_name(node->parent)); |
||
| 88 | |||
| 89 | ofw_tree_property_t *prop; |
||
| 90 | ofw_central_range_t *range; |
||
| 91 | count_t ranges; |
||
| 92 | |||
| 93 | prop = ofw_tree_getprop(node, "ranges"); |
||
| 94 | if (!prop) |
||
| 95 | return false; |
||
| 96 | |||
| 97 | ranges = prop->size / sizeof(ofw_central_range_t); |
||
| 98 | range = prop->value; |
||
| 99 | |||
| 2745 | decky | 100 | unsigned int i; |
| 1896 | jermar | 101 | |
| 102 | for (i = 0; i < ranges; i++) { |
||
| 103 | if (overlaps(reg->addr, reg->size, range[i].child_base, range[i].size)) { |
||
| 104 | *pa = range[i].parent_base + (reg->addr - range[i].child_base); |
||
| 105 | return true; |
||
| 106 | } |
||
| 107 | } |
||
| 108 | |||
| 109 | return false; |
||
| 110 | } |
||
| 111 | |||
| 1912 | jermar | 112 | bool ofw_fhc_map_interrupt(ofw_tree_node_t *node, ofw_fhc_reg_t *reg, uint32_t interrupt, int *inr) |
| 1909 | jermar | 113 | { |
| 114 | fhc_t *fhc = NULL; |
||
| 115 | if (!node->device) { |
||
| 116 | fhc = fhc_init(node); |
||
| 117 | if (!fhc) |
||
| 118 | return false; |
||
| 119 | node->device = fhc; |
||
| 120 | central_fhc = fhc; |
||
| 121 | } |
||
| 122 | |||
| 123 | /* |
||
| 124 | * The interrupt controller for the interrupt is the FHC itself. |
||
| 125 | */ |
||
| 126 | fhc_enable_interrupt(fhc, interrupt); |
||
| 127 | |||
| 1910 | jermar | 128 | *inr = interrupt; |
| 1909 | jermar | 129 | return true; |
| 130 | } |
||
| 131 | |||
| 1896 | jermar | 132 | /** @} |
| 133 | */ |