1/*- 2 * Copyright (c) 2003, 2004 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> 33 34#include <machine/bus.h> 35#include <machine/dig64.h> 36#include <machine/md_var.h> 37#include <machine/vmparam.h> 38 39#include <dev/uart/uart.h> 40#include <dev/uart/uart_cpu.h> 41 42bus_space_tag_t uart_bus_space_io = IA64_BUS_SPACE_IO; 43bus_space_tag_t uart_bus_space_mem = IA64_BUS_SPACE_MEM; 44 45static int dig64_to_uart_parity[] = { 46 UART_PARITY_NONE, UART_PARITY_NONE, UART_PARITY_EVEN, 47 UART_PARITY_ODD, UART_PARITY_MARK, UART_PARITY_SPACE 48}; 49 50int 51uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 52{ 53 54 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 55} 56 57int 58uart_cpu_getdev(int devtype, struct uart_devinfo *di) 59{ 60 struct dig64_hcdp_table *tbl; 61 struct dig64_hcdp_entry *ent; 62 struct uart_class *class; 63 bus_addr_t addr; 64 uint64_t hcdp; 65 unsigned int i; 66 67 class = &uart_ns8250_class; 68 if (class == NULL) 69 return (ENXIO); 70 71 /* 72 * Use the DIG64 HCDP table if present. 73 */ 74 hcdp = ia64_get_hcdp(); 75 if (hcdp != 0) { 76 tbl = (void*)IA64_PHYS_TO_RR7(hcdp); 77 for (i = 0; i < tbl->entries; i++) { 78 ent = tbl->entry + i; 79 80 if (devtype == UART_DEV_CONSOLE && 81 ent->type != DIG64_HCDP_CONSOLE) 82 continue; 83 84 if (devtype == UART_DEV_DBGPORT && 85 ent->type != DIG64_HCDP_DBGPORT) 86 continue; 87 88 addr = ent->address.addr_high; 89 addr = (addr << 32) + ent->address.addr_low; 90 di->ops = uart_getops(class); 91 di->bas.chan = 0; 92 di->bas.bst = (ent->address.addr_space == 0) 93 ? uart_bus_space_mem : uart_bus_space_io; 94 if (bus_space_map(di->bas.bst, addr, 95 uart_getrange(class), 0, &di->bas.bsh) != 0) 96 continue; 97 di->bas.regshft = 0; 98 di->bas.rclk = ent->pclock << 4; 99 /* We don't deal with 64-bit baud rates. */ 100 di->baudrate = ent->baud_low; 101 di->databits = ent->databits; 102 di->stopbits = ent->stopbits; 103 di->parity = (ent->parity >= 6) ? UART_PARITY_NONE 104 : dig64_to_uart_parity[ent->parity]; 105 return (0); 106 } 107 108 /* FALLTHROUGH */ 109 } 110 111 /* Check the environment. */ 112 return (uart_getenv(devtype, di, class)); 113} 114