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| Rev | Author | Line No. | Line |
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| 1410 | jermar | 1 | /* |
| 2 | * Copyright (C) 2006 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1784 | jermar | 29 | /** @addtogroup sparc64 |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1842 | jermar | 35 | #include <arch/drivers/kbd.h> |
| 1896 | jermar | 36 | #include <genarch/ofw/ofw_tree.h> |
| 1841 | jermar | 37 | #ifdef CONFIG_Z8530 |
| 38 | #include <genarch/kbd/z8530.h> |
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| 39 | #endif |
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| 1844 | jermar | 40 | #ifdef CONFIG_NS16550 |
| 41 | #include <genarch/kbd/ns16550.h> |
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| 1841 | jermar | 42 | #endif |
| 1842 | jermar | 43 | |
| 1841 | jermar | 44 | #include <arch/mm/page.h> |
| 1410 | jermar | 45 | #include <arch/types.h> |
| 1841 | jermar | 46 | #include <typedefs.h> |
| 1842 | jermar | 47 | #include <align.h> |
| 1896 | jermar | 48 | #include <func.h> |
| 49 | #include <print.h> |
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| 1410 | jermar | 50 | |
| 1780 | jermar | 51 | volatile uint8_t *kbd_virt_address = NULL; |
| 1410 | jermar | 52 | |
| 1896 | jermar | 53 | kbd_type_t kbd_type = KBD_UNKNOWN; |
| 54 | |||
| 55 | /** Initialize keyboard. |
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| 56 | * |
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| 57 | * Traverse OpenFirmware device tree in order to find necessary |
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| 58 | * info about the keyboard device. |
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| 59 | * |
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| 60 | * @param node Keyboard device node. |
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| 61 | */ |
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| 62 | void kbd_init(ofw_tree_node_t *node) |
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| 1410 | jermar | 63 | { |
| 1841 | jermar | 64 | size_t offset; |
| 65 | uintptr_t aligned_addr; |
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| 1896 | jermar | 66 | ofw_tree_property_t *prop; |
| 67 | const char *name; |
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| 68 | |||
| 69 | name = ofw_tree_node_name(node); |
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| 70 | |||
| 71 | if (strcmp(name, "zs") == 0) |
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| 72 | kbd_type = KBD_Z8530; |
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| 73 | else if (strcmp(name, "su") == 0) |
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| 74 | kbd_type = KBD_NS16550; |
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| 75 | |||
| 76 | if (kbd_type == KBD_UNKNOWN) { |
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| 77 | printf("Unknown keyboard device.\n"); |
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| 78 | return; |
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| 79 | } |
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| 80 | |||
| 81 | prop = ofw_tree_getprop(node, "reg"); |
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| 82 | if (!prop) |
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| 83 | panic("Can't find \"reg\" property.\n"); |
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| 84 | |||
| 85 | uintptr_t pa; |
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| 86 | size_t size; |
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| 87 | |||
| 88 | switch (kbd_type) { |
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| 89 | case KBD_Z8530: |
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| 90 | size = ((ofw_fhc_reg_t *) prop->value)->size; |
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| 91 | if (!ofw_fhc_apply_ranges(node->parent, ((ofw_fhc_reg_t *) prop->value) , &pa)) { |
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| 92 | printf("Failed to determine keyboard address.\n"); |
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| 93 | return; |
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| 94 | } |
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| 95 | break; |
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| 96 | case KBD_NS16550: |
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| 97 | size = ((ofw_ebus_reg_t *) prop->value)->size; |
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| 98 | if (!ofw_ebus_apply_ranges(node->parent, ((ofw_ebus_reg_t *) prop->value) , &pa)) { |
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| 99 | printf("Failed to determine keyboard address.\n"); |
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| 100 | return; |
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| 101 | } |
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| 102 | break; |
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| 103 | default: |
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| 104 | panic("Unexpected type.\n"); |
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| 105 | } |
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| 106 | |||
| 1841 | jermar | 107 | /* |
| 108 | * We need to pass aligned address to hw_map(). |
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| 109 | * However, the physical keyboard address can |
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| 1896 | jermar | 110 | * be pretty much unaligned, depending on the |
| 111 | * underlying controller. |
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| 1841 | jermar | 112 | */ |
| 1896 | jermar | 113 | aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE); |
| 114 | offset = pa - aligned_addr; |
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| 115 | kbd_virt_address = (uint8_t *) hw_map(aligned_addr, offset + size) + offset; |
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| 1841 | jermar | 116 | |
| 1896 | jermar | 117 | switch (kbd_type) { |
| 1841 | jermar | 118 | #ifdef CONFIG_Z8530 |
| 1896 | jermar | 119 | case KBD_Z8530: |
| 120 | z8530_init(); |
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| 121 | break; |
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| 1841 | jermar | 122 | #endif |
| 1844 | jermar | 123 | #ifdef CONFIG_NS16550 |
| 1896 | jermar | 124 | case KBD_NS16550: |
| 125 | ns16550_init(); |
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| 126 | break; |
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| 1841 | jermar | 127 | #endif |
| 1896 | jermar | 128 | default: |
| 129 | printf("Kernel is not compiled with the necessary keyboard driver this machine requires.\n"); |
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| 130 | } |
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| 1410 | jermar | 131 | } |
| 1702 | cejka | 132 | |
| 1784 | jermar | 133 | /** @} |
| 1702 | cejka | 134 | */ |