Subversion Repositories HelenOS

/*

 * Copyright (c) 2006 Jakub Jermar

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/** @addtogroup sparc64

 * @{

 */

/** @file

 */

#include <arch/drivers/kbd.h>

#include <genarch/ofw/ofw_tree.h>

#ifdef CONFIG_SUN_KBD

#include <genarch/kbrd/kbrd.h>

#endif

#ifdef CONFIG_Z8530

#include <genarch/drivers/z8530/z8530.h>

#endif

#ifdef CONFIG_NS16550

#include <genarch/drivers/ns16550/ns16550.h>

#endif

#include <console/console.h>

#include <ddi/irq.h>

#include <arch/mm/page.h>

#include <arch/types.h>

#include <align.h>

#include <string.h>

#include <print.h>

#include <sysinfo/sysinfo.h>

#ifdef CONFIG_SUN_KBD

#ifdef CONFIG_Z8530

static bool kbd_z8530_init(ofw_tree_node_t *node)

{

    const char *name = ofw_tree_node_name(node);

    if (str_cmp(name, "zs") != 0)

        return false;

    /*

     * Read 'interrupts' property.

     */

    ofw_tree_property_t *prop = ofw_tree_getprop(node, "interrupts");

    if ((!prop) || (!prop->value)) {

        printf("z8530: Unable to find interrupts property\n");

        return false;

    }

    uint32_t interrupts = *((uint32_t *) prop->value);

    /*

     * Read 'reg' property.

     */

    prop = ofw_tree_getprop(node, "reg");

    if ((!prop) || (!prop->value)) {

        printf("z8530: Unable to find reg property\n");

        return false;

    }

    size_t size = ((ofw_fhc_reg_t *) prop->value)->size;

    uintptr_t pa;

    if (!ofw_fhc_apply_ranges(node->parent,

        ((ofw_fhc_reg_t *) prop->value), &pa)) {

        printf("z8530: Failed to determine address\n");

        return false;

    }

    inr_t inr;

    cir_t cir;

    void *cir_arg;

    if (!ofw_fhc_map_interrupt(node->parent,

        ((ofw_fhc_reg_t *) prop->value), interrupts, &inr, &cir,

        &cir_arg)) {

        printf("z8530: Failed to determine interrupt\n");

        return false;

    }

    /*

     * We need to pass aligned address to hw_map().

     * However, the physical keyboard address can

     * be pretty much unaligned, depending on the

     * underlying controller.

     */

    uintptr_t aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);

    size_t offset = pa - aligned_addr;

    z8530_t *z8530 = (z8530_t *)

        (hw_map(aligned_addr, offset + size) + offset);

    z8530_instance_t *z8530_instance = z8530_init(z8530, inr, cir, cir_arg);

    if (z8530_instance) {

        kbrd_instance_t *kbrd_instance = kbrd_init();

        if (kbrd_instance) {

            indev_t *sink = stdin_wire();

            indev_t *kbrd = kbrd_wire(kbrd_instance, sink);

            z8530_wire(z8530_instance, kbrd);

        }

    }

    /*

     * This is the necessary evil until the userspace drivers are

     * entirely self-sufficient.

     */

    sysinfo_set_item_val("kbd", NULL, true);

    sysinfo_set_item_val("kbd.inr", NULL, inr);

    sysinfo_set_item_val("kbd.address.kernel", NULL,

        (uintptr_t) z8530);

    sysinfo_set_item_val("kbd.address.physical", NULL, pa);

    sysinfo_set_item_val("kbd.type.z8530", NULL, true);

    return true;

}

#endif /* CONFIG_Z8530 */

#ifdef CONFIG_NS16550

static bool kbd_ns16550_init(ofw_tree_node_t *node)

{

    const char *name = ofw_tree_node_name(node);

    if (str_cmp(name, "su") != 0)

        return false;

    /*

     * Read 'interrupts' property.

     */

    ofw_tree_property_t *prop = ofw_tree_getprop(node, "interrupts");

    if ((!prop) || (!prop->value)) {

        printf("ns16550: Unable to find interrupts property\n");

        return false;

    }

    uint32_t interrupts = *((uint32_t *) prop->value);

    /*

     * Read 'reg' property.

     */

    prop = ofw_tree_getprop(node, "reg");

    if ((!prop) || (!prop->value)) {

        printf("ns16550: Unable to find reg property\n");

        return false;

    }

    size_t size = ((ofw_ebus_reg_t *) prop->value)->size;

    uintptr_t pa;

    if (!ofw_ebus_apply_ranges(node->parent,

        ((ofw_ebus_reg_t *) prop->value), &pa)) {

        printf("ns16550: Failed to determine address\n");

        return false;

    }

    inr_t inr;

    cir_t cir;

    void *cir_arg;

    if (!ofw_ebus_map_interrupt(node->parent,

        ((ofw_ebus_reg_t *) prop->value), interrupts, &inr, &cir,

        &cir_arg)) {

        printf("ns16550: Failed to determine interrupt\n");

        return false;

    }

    /*

     * We need to pass aligned address to hw_map().

     * However, the physical keyboard address can

     * be pretty much unaligned, depending on the

     * underlying controller.

     */

    uintptr_t aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);

    size_t offset = pa - aligned_addr;

    ns16550_t *ns16550 = (ns16550_t *)

       (hw_map(aligned_addr, offset + size) + offset);

    ns16550_instance_t *ns16550_instance = ns16550_init(ns16550, inr, cir, cir_arg);

    if (ns16550_instance) {

        kbrd_instance_t *kbrd_instance = kbrd_init();

        if (kbrd_instance) {

            indev_t *sink = stdin_wire();

            indev_t *kbrd = kbrd_wire(kbrd_instance, sink);

            ns16550_wire(ns16550_instance, kbrd);

        }

    }

    /*

     * This is the necessary evil until the userspace drivers are

     * entirely self-sufficient.

     */

    sysinfo_set_item_val("kbd", NULL, true);

    sysinfo_set_item_val("kbd.inr", NULL, inr);

    sysinfo_set_item_val("kbd.address.kernel", NULL,

        (uintptr_t) ns16550);

    sysinfo_set_item_val("kbd.address.physical", NULL, pa);

    sysinfo_set_item_val("kbd.type.ns16550", NULL, true);

    return true;

}

#endif /* CONFIG_NS16550 */

/** Initialize keyboard.

 *

 * Traverse OpenFirmware device tree in order to find necessary

 * info about the keyboard device.

 *

 * @param node Keyboard device node.

 *

 */

void kbd_init(ofw_tree_node_t *node)

{

#ifdef CONFIG_Z8530

    kbd_z8530_init(node);

#endif

#ifdef CONFIG_NS16550

    kbd_ns16550_init(node);

#endif

}

#endif /* CONFIG_SUN_KBD */

/** @}

 */