/*
* Copyright (c) 2019 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 kernel_sparc64
* @{
*/
/** @file
*/
#include <genarch/ofw/ofw_tree.h>
#include <genarch/ofw/ebus.h>
#include <console/console.h>
#include <genarch/srln/srln.h>
#include <ddi/irq.h>
#include <typedefs.h>
#include <align.h>
#include <str.h>
#include <log.h>
#ifdef CONFIG_SUN_TTY
#include <arch/drivers/tty.h>
#endif
#ifdef CONFIG_NS16550
#include <genarch/drivers/ns16550/ns16550.h>
#endif
#ifdef CONFIG_SUN_TTY
#ifdef CONFIG_NS16550
static bool tty_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)) {
log(LF_ARCH, LVL_ERROR,
"ns16550: Unable to find interrupts property");
return false;
}
uint32_t interrupts = *((uint32_t *) prop->value);
/*
* Read 'reg' property.
*/
prop = ofw_tree_getprop(node, "reg");
if ((!prop) || (!prop->value)) {
log(LF_ARCH, LVL_ERROR,
"ns16550: Unable to find reg property");
return false;
}
uintptr_t pa = 0; // Prevent -Werror=maybe-uninitialized
if (!ofw_ebus_apply_ranges(node->parent,
((ofw_ebus_reg_t *) prop->value), &pa)) {
log(LF_ARCH, LVL_ERROR,
"ns16550: Failed to determine address");
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)) {
log(LF_ARCH, LVL_ERROR,
"ns16550: Failed to determine interrupt");
return false;
}
outdev_t *ns16550_out;
ns16550_instance_t *ns16550_instance = ns16550_init((ioport8_t *) pa, 0,
inr, cir, cir_arg, &ns16550_out);
if (ns16550_instance) {
srln_instance_t *srln_instance = srln_init();
if (srln_instance) {
indev_t *sink = stdin_wire();
indev_t *srln = srln_wire(srln_instance, sink);
ns16550_wire(ns16550_instance, srln);
}
stdout_wire(ns16550_out);
}
return true;
}
#endif /* CONFIG_NS16550 */
/** Initialize tty.
*
* Traverse OpenFirmware device tree in order to find necessary
* info about the keyboard device.
*
* @param node Keyboard device node.
*
*/
void tty_init(ofw_tree_node_t *node)
{
#ifdef CONFIG_NS16550
tty_ns16550_init(node);
#endif
}
#endif /* CONFIG_SUN_TTY */
/** @}
*/