1/*- 2 * Copyright (c) 2003 M. Warner Losh, 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>
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28__FBSDID("$FreeBSD: head/sys/dev/uart/uart_cpu_pc98.c 153363 2005-12-12 21:00:58Z imp $");
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28__FBSDID("$FreeBSD: head/sys/dev/uart/uart_cpu_pc98.c 168281 2007-04-02 22:00:22Z marcel $"); |
29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> 33 34#include <machine/bus.h> 35 36#include <dev/uart/uart.h> 37#include <dev/uart/uart_cpu.h> 38 39bus_space_tag_t uart_bus_space_io = I386_BUS_SPACE_IO; 40bus_space_tag_t uart_bus_space_mem = I386_BUS_SPACE_MEM; 41 42int 43uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 44{ 45 46 return (0); /* XXX */ 47} 48 49int 50uart_cpu_getdev(int devtype, struct uart_devinfo *di) 51{
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52 struct uart_class *class; |
53 unsigned int i, ivar, flags; 54
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55 class = &uart_ns8250_class; 56 if (class == NULL) 57 return (ENXIO); 58 |
59 /* Check the environment. */
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55 di->ops = uart_ns8250_ops;
56 if (uart_getenv(devtype, di) == 0)
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60 if (uart_getenv(devtype, di, class) == 0) |
61 return (0); 62 63 /* 64 * There is a serial port on all pc98 hardware. It is 8251 or 65 * an enhance version of that. Some pc98 have the second serial 66 * port which is 16550A compatible. However, for the sio driver, 67 * flags selected which type of uart was in the sytem. We use 68 * something similar to sort things out. 69 */ 70 for (i = 0; i < 1; i++) { 71 if (resource_int_value("uart", i, "flags", &flags)) 72 continue; 73 if (devtype == UART_DEV_CONSOLE && !UART_FLAGS_CONSOLE(flags)) 74 continue; 75 if (devtype == UART_DEV_DBGPORT && !UART_FLAGS_DBGPORT(flags)) 76 continue; 77 /* 78 * We have a possible device. Make sure it's enabled and 79 * that we have an I/O port. 80 */ 81 if (resource_int_value("uart", i, "disabled", &ivar) == 0 && 82 ivar != 0) 83 continue; 84 if (resource_int_value("uart", i, "port", &ivar) != 0 || 85 ivar == 0) 86 continue; 87
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84 di->ops = uart_ns8250_ops;
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88 di->ops = uart_getops(class); |
89 di->bas.chan = 0; 90 di->bas.bst = uart_bus_space_io;
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87 if (bus_space_map(di->bas.bst, ivar, 8, 0, &di->bas.bsh) != 0)
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91 if (bus_space_map(di->bas.bst, ivar, uart_getrange(class), 0, 92 &di->bas.bsh) != 0) |
93 continue; 94 di->bas.regshft = 0; 95 di->bas.rclk = 0; 96 if (resource_int_value("uart", i, "baud", &ivar) != 0) 97 ivar = 0; 98 di->baudrate = ivar; 99 di->databits = 8; 100 di->stopbits = 1; 101 di->parity = UART_PARITY_NONE; 102 return (0); 103 } 104 105 return (ENXIO); 106}
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