| 1 | /*
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| 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 |
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| 29 | /** @addtogroup kernel_sparc64
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #include <arch/drivers/kbd.h>
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| 36 | #include <genarch/ofw/ofw_tree.h>
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| 37 | #include <genarch/ofw/ebus.h>
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| 38 | #include <console/console.h>
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| 39 | #include <ddi/irq.h>
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| 40 | #include <typedefs.h>
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| 41 | #include <align.h>
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| 42 | #include <str.h>
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| 43 | #include <log.h>
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| 44 | #include <sysinfo/sysinfo.h>
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| 45 |
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| 46 | #ifdef CONFIG_SUN_KBD
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| 47 | #include <genarch/kbrd/kbrd.h>
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| 48 | #endif
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| 49 |
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| 50 | #ifdef CONFIG_NS16550
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| 51 | #include <genarch/drivers/ns16550/ns16550.h>
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| 52 | #endif
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| 53 |
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| 54 | #ifdef CONFIG_SUN_KBD
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| 55 |
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| 56 | #ifdef CONFIG_NS16550
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| 57 |
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| 58 | static bool kbd_ns16550_init(ofw_tree_node_t *node)
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| 59 | {
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| 60 | const char *name = ofw_tree_node_name(node);
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| 61 |
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| 62 | if (str_cmp(name, "su") != 0)
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| 63 | return false;
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| 64 |
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| 65 | /*
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| 66 | * Read 'interrupts' property.
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| 67 | */
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| 68 | ofw_tree_property_t *prop = ofw_tree_getprop(node, "interrupts");
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| 69 | if ((!prop) || (!prop->value)) {
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| 70 | log(LF_ARCH, LVL_ERROR,
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| 71 | "ns16550: Unable to find interrupts property");
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| 72 | return false;
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| 73 | }
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| 74 |
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| 75 | uint32_t interrupts = *((uint32_t *) prop->value);
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| 76 |
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| 77 | /*
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| 78 | * Read 'reg' property.
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| 79 | */
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| 80 | prop = ofw_tree_getprop(node, "reg");
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| 81 | if ((!prop) || (!prop->value)) {
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| 82 | log(LF_ARCH, LVL_ERROR,
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| 83 | "ns16550: Unable to find reg property");
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| 84 | return false;
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| 85 | }
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| 86 |
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| 87 | uintptr_t pa = 0; // Prevent -Werror=maybe-uninitialized
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| 88 | if (!ofw_ebus_apply_ranges(node->parent,
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| 89 | ((ofw_ebus_reg_t *) prop->value), &pa)) {
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| 90 | log(LF_ARCH, LVL_ERROR,
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| 91 | "ns16550: Failed to determine address");
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| 92 | return false;
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| 93 | }
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| 94 |
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| 95 | inr_t inr;
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| 96 | cir_t cir;
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| 97 | void *cir_arg;
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| 98 | if (!ofw_ebus_map_interrupt(node->parent,
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| 99 | ((ofw_ebus_reg_t *) prop->value), interrupts, &inr, &cir,
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| 100 | &cir_arg)) {
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| 101 | log(LF_ARCH, LVL_ERROR,
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| 102 | "ns16550: Failed to determine interrupt");
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| 103 | return false;
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| 104 | }
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| 105 |
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| 106 | ns16550_instance_t *ns16550_instance = ns16550_init((ioport8_t *) pa, 0,
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| 107 | inr, cir, cir_arg, NULL);
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| 108 | if (ns16550_instance) {
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| 109 | kbrd_instance_t *kbrd_instance = kbrd_init();
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| 110 | if (kbrd_instance) {
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| 111 | indev_t *sink = stdin_wire();
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| 112 | indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
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| 113 | ns16550_wire(ns16550_instance, kbrd);
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| 114 | }
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| 115 | }
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| 116 |
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| 117 | /*
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| 118 | * This is the necessary evil until the userspace drivers are
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| 119 | * entirely self-sufficient.
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| 120 | */
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| 121 | sysinfo_set_item_val("kbd", NULL, true);
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| 122 | sysinfo_set_item_val("kbd.inr", NULL, inr);
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| 123 | sysinfo_set_item_val("kbd.address.physical", NULL, pa);
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| 124 | sysinfo_set_item_val("kbd.type.ns16550", NULL, true);
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| 125 |
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| 126 | return true;
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| 127 | }
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| 128 |
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| 129 | #endif /* CONFIG_NS16550 */
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| 130 |
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| 131 | /** Initialize keyboard.
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| 132 | *
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| 133 | * Traverse OpenFirmware device tree in order to find necessary
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| 134 | * info about the keyboard device.
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| 135 | *
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| 136 | * @param node Keyboard device node.
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| 137 | *
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| 138 | */
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| 139 | void kbd_init(ofw_tree_node_t *node)
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| 140 | {
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| 141 | #ifdef CONFIG_NS16550
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| 142 | kbd_ns16550_init(node);
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| 143 | #endif
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| 144 | }
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| 145 |
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| 146 | #endif /* CONFIG_SUN_KBD */
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| 147 |
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| 148 | /** @}
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| 149 | */
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