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/*-
* Copyright (c) 2003, 2004 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/dig64.h>
#include <machine/md_var.h>
#include <machine/vmparam.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_cpu.h>
bus_space_tag_t uart_bus_space_io = IA64_BUS_SPACE_IO;
bus_space_tag_t uart_bus_space_mem = IA64_BUS_SPACE_MEM;
static int dig64_to_uart_parity[] = {
UART_PARITY_NONE, UART_PARITY_NONE, UART_PARITY_EVEN,
UART_PARITY_ODD, UART_PARITY_MARK, UART_PARITY_SPACE
};
int
uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
{
return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
}
int
uart_cpu_getdev(int devtype, struct uart_devinfo *di)
{
struct dig64_hcdp_table *tbl;
struct dig64_hcdp_entry *ent;
struct uart_class *class;
bus_addr_t addr;
uint64_t hcdp;
unsigned int i;
class = &uart_ns8250_class;
if (class == NULL)
return (ENXIO);
/*
* Use the DIG64 HCDP table if present.
*/
hcdp = ia64_get_hcdp();
if (hcdp != 0) {
tbl = (void*)IA64_PHYS_TO_RR7(hcdp);
for (i = 0; i < tbl->entries; i++) {
ent = tbl->entry + i;
if (devtype == UART_DEV_CONSOLE &&
ent->type != DIG64_HCDP_CONSOLE)
continue;
if (devtype == UART_DEV_DBGPORT &&
ent->type != DIG64_HCDP_DBGPORT)
continue;
addr = ent->address.addr_high;
addr = (addr << 32) + ent->address.addr_low;
di->ops = uart_getops(class);
di->bas.chan = 0;
di->bas.bst = (ent->address.addr_space == 0)
? uart_bus_space_mem : uart_bus_space_io;
if (bus_space_map(di->bas.bst, addr,
uart_getrange(class), 0, &di->bas.bsh) != 0)
continue;
di->bas.regshft = 0;
di->bas.rclk = ent->pclock << 4;
/* We don't deal with 64-bit baud rates. */
di->baudrate = ent->baud_low;
di->databits = ent->databits;
di->stopbits = ent->stopbits;
di->parity = (ent->parity >= 6) ? UART_PARITY_NONE
: dig64_to_uart_parity[ent->parity];
return (0);
}
/* FALLTHROUGH */
}
/* Check the environment. */
return (uart_getenv(devtype, di, class));
}
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