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1410 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2006 Jakub Jermar
1410 jermar 3
 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup sparc64
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 * @{
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 */
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/** @file
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 */
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#include <arch/drivers/kbd.h>
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#include <genarch/ofw/ofw_tree.h>
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#ifdef CONFIG_Z8530
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#include <genarch/kbd/z8530.h>
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#endif
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#ifdef CONFIG_NS16550
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#include <genarch/kbd/ns16550.h>
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#endif
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#include <ddi/device.h>
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#include <ddi/irq.h>
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#include <arch/mm/page.h>
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#include <arch/types.h>
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#include <align.h>
4011 svoboda 48
#include <string.h>
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#include <print.h>
3969 jermar 50
#include <sysinfo/sysinfo.h>
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kbd_type_t kbd_type = KBD_UNKNOWN;
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/** Initialize keyboard.
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 *
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 * Traverse OpenFirmware device tree in order to find necessary
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 * info about the keyboard device.
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 *
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 * @param node Keyboard device node.
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 */
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void kbd_init(ofw_tree_node_t *node)
1410 jermar 62
{
1841 jermar 63
    size_t offset;
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    uintptr_t aligned_addr;
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    ofw_tree_property_t *prop;
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    const char *name;
3655 jermar 67
    cir_t cir;
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    void *cir_arg;
3982 jermar 69
 
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#ifdef CONFIG_NS16550
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    ns16550_t *ns16550;
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#endif
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#ifdef CONFIG_Z8530
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    z8530_t *z8530;
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#endif
1896 jermar 76
 
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    name = ofw_tree_node_name(node);
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1909 jermar 79
    /*
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     * Determine keyboard serial controller type.
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     */
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    if (strcmp(name, "zs") == 0)
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        kbd_type = KBD_Z8530;
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    else if (strcmp(name, "su") == 0)
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        kbd_type = KBD_NS16550;
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    if (kbd_type == KBD_UNKNOWN) {
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        printf("Unknown keyboard device.\n");
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        return;
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    }
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1909 jermar 92
    /*
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     * Read 'interrupts' property.
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     */
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    uint32_t interrupts;
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    prop = ofw_tree_getprop(node, "interrupts");
3714 decky 97
    if ((!prop) || (!prop->value))
3790 svoboda 98
        panic("Cannot find 'interrupt' property.");
1909 jermar 99
    interrupts = *((uint32_t *) prop->value);
3714 decky 100
 
1909 jermar 101
    /*
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     * Read 'reg' property.
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     */
1896 jermar 104
    prop = ofw_tree_getprop(node, "reg");
3714 decky 105
    if ((!prop) || (!prop->value))
3790 svoboda 106
        panic("Cannot find 'reg' property.");
1896 jermar 107
 
108
    uintptr_t pa;
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    size_t size;
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    devno_t devno;
1921 jermar 111
    inr_t inr;
1896 jermar 112
 
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    switch (kbd_type) {
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    case KBD_Z8530:
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        size = ((ofw_fhc_reg_t *) prop->value)->size;
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        if (!ofw_fhc_apply_ranges(node->parent,
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            ((ofw_fhc_reg_t *) prop->value), &pa)) {
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            printf("Failed to determine keyboard address.\n");
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            return;
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        }
3646 jermar 121
        if (!ofw_fhc_map_interrupt(node->parent,
3655 jermar 122
            ((ofw_fhc_reg_t *) prop->value), interrupts, &inr, &cir,
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            &cir_arg)) {
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            printf("Failed to determine keyboard interrupt.\n");
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            return;
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        }
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        break;
1919 jermar 128
 
1896 jermar 129
    case KBD_NS16550:
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        size = ((ofw_ebus_reg_t *) prop->value)->size;
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        if (!ofw_ebus_apply_ranges(node->parent,
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            ((ofw_ebus_reg_t *) prop->value), &pa)) {
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            printf("Failed to determine keyboard address.\n");
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            return;
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        }
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        if (!ofw_ebus_map_interrupt(node->parent,
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            ((ofw_ebus_reg_t *) prop->value), interrupts, &inr, &cir,
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            &cir_arg)) {
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            printf("Failed to determine keyboard interrupt.\n");
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            return;
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        };
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        break;
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    default:
3790 svoboda 144
        panic("Unexpected keyboard type.");
1896 jermar 145
    }
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1841 jermar 147
    /*
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     * We need to pass aligned address to hw_map().
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     * However, the physical keyboard address can
1896 jermar 150
     * be pretty much unaligned, depending on the
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     * underlying controller.
1841 jermar 152
     */
1896 jermar 153
    aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
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    offset = pa - aligned_addr;
3714 decky 155
 
1896 jermar 156
    switch (kbd_type) {
1841 jermar 157
#ifdef CONFIG_Z8530
1896 jermar 158
    case KBD_Z8530:
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        devno = device_assign_devno();
160
        z8530 = (z8530_t *) hw_map(aligned_addr, offset + size) +
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            offset;
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        (void) z8530_init(z8530, devno, inr, cir, cir_arg);
163
 
164
        /*
165
         * This is the necessary evil until the userspace drivers are
166
         * entirely self-sufficient.
167
         */
168
        sysinfo_set_item_val("kbd", NULL, true);
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        sysinfo_set_item_val("kbd.type", NULL, KBD_Z8530);
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        sysinfo_set_item_val("kbd.devno", NULL, devno);
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        sysinfo_set_item_val("kbd.inr", NULL, inr);
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        sysinfo_set_item_val("kbd.address.virtual", NULL,
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            (uintptr_t) z8530);
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        sysinfo_set_item_val("kbd.address.physical", NULL, pa);
1896 jermar 175
        break;
1841 jermar 176
#endif
1844 jermar 177
#ifdef CONFIG_NS16550
1896 jermar 178
    case KBD_NS16550:
3982 jermar 179
        devno = device_assign_devno();
180
        ns16550 = (ns16550_t *) hw_map(aligned_addr, offset + size) +
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            offset;
182
        (void) ns16550_init(ns16550, devno, inr, cir, cir_arg);
183
 
184
        /*
185
         * This is the necessary evil until the userspace driver is
186
         * entirely self-sufficient.
187
         */
188
        sysinfo_set_item_val("kbd", NULL, true);
189
        sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
190
        sysinfo_set_item_val("kbd.devno", NULL, devno);
191
        sysinfo_set_item_val("kbd.inr", NULL, inr);
192
        sysinfo_set_item_val("kbd.address.virtual", NULL,
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            (uintptr_t) ns16550);
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        sysinfo_set_item_val("kbd.address.physical", NULL, pa);
1896 jermar 195
        break;
1841 jermar 196
#endif
1896 jermar 197
    default:
3646 jermar 198
        printf("Kernel is not compiled with the necessary keyboard "
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            "driver this machine requires.\n");
1896 jermar 200
    }
1410 jermar 201
}
1702 cejka 202
 
1784 jermar 203
/** @}
1702 cejka 204
 */