HelenOS sources
This source file includes following definitions.
- tty_ns16550_init
- tty_init
#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;
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);
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;
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
void tty_init(ofw_tree_node_t *node)
{
#ifdef CONFIG_NS16550
tty_ns16550_init(node);
#endif
}
#endif
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