109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
/*
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* Copyright (c) 2003, 2004 Marcel Moolenaar
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* 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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* 1. 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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* 2. 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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*
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/dig64.h>
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#include <machine/md_var.h>
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#include <machine/vmparam.h>
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#include <dev/uart/uart.h>
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#include <dev/uart/uart_cpu.h>
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bus_space_tag_t uart_bus_space_io = IA64_BUS_SPACE_IO;
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bus_space_tag_t uart_bus_space_mem = IA64_BUS_SPACE_MEM;
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static int dig64_to_uart_parity[] = {
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UART_PARITY_NONE, UART_PARITY_NONE, UART_PARITY_EVEN,
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UART_PARITY_ODD, UART_PARITY_MARK, UART_PARITY_SPACE
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};
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int
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uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
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{
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return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
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}
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int
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uart_cpu_getdev(int devtype, struct uart_devinfo *di)
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{
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struct dig64_hcdp_table *tbl;
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struct dig64_hcdp_entry *ent;
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bus_addr_t addr;
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uint64_t hcdp;
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unsigned int i;
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/*
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* Use the DIG64 HCDP table if present.
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*/
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hcdp = ia64_get_hcdp();
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if (hcdp != 0) {
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tbl = (void*)IA64_PHYS_TO_RR7(hcdp);
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for (i = 0; i < tbl->entries; i++) {
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ent = tbl->entry + i;
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if (devtype == UART_DEV_CONSOLE &&
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ent->type != DIG64_HCDP_CONSOLE)
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continue;
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if (devtype == UART_DEV_DBGPORT &&
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ent->type != DIG64_HCDP_DBGPORT)
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continue;
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addr = ent->address.addr_high;
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addr = (addr << 32) + ent->address.addr_low;
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di->ops = uart_ns8250_ops;
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di->bas.chan = 0;
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di->bas.bst = (ent->address.addr_space == 0)
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? uart_bus_space_mem : uart_bus_space_io;
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if (bus_space_map(di->bas.bst, addr, 8, 0,
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&di->bas.bsh) != 0)
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continue;
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di->bas.regshft = 0;
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di->bas.rclk = ent->pclock << 4;
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/* We don't deal with 64-bit baud rates. */
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di->baudrate = ent->baud_low;
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di->databits = ent->databits;
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di->stopbits = ent->stopbits;
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di->parity = (ent->parity >= 6) ? UART_PARITY_NONE
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: dig64_to_uart_parity[ent->parity];
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return (0);
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}
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/* FALLTHROUGH */
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}
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/* Check the environment. */
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return (uart_getenv(devtype, di));
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}
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