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>
| 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>
|
28__FBSDID("$FreeBSD: head/sys/dev/uart/uart_cpu_pc98.c 120452 2003-09-26 05:14:56Z marcel $");
| 28__FBSDID("$FreeBSD: head/sys/dev/uart/uart_cpu_pc98.c 127215 2004-03-20 02:14:02Z 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
| 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;
40bus_space_tag_t uart_bus_space_mem;
41
|
39int
40uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
41{
42
43 return (0); /* XXX */
44}
45
46int
47uart_cpu_getdev(int devtype, struct uart_devinfo *di)
48{
49 unsigned int i, ivar, flags;
50
| 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{
52 unsigned int i, ivar, flags;
53
|
| 54 /* Check the environment. */
55 if (uart_getenv(devtype, di) == 0)
56 return (0);
57
|
51 /*
52 * There are 2 built-in serial ports on pc98 hardware. The
53 * first one is 8251 and the second one is I think an enhance
54 * version of that. However, for the sio driver, flags selected
55 * which type of uart was in the sytem. We use something similar
56 * to sort things out.
57 */
58 for (i = 0; i < 1; i++) {
59 if (resource_int_value("uart", i, "flags", &flags))
60 continue;
61 if (devtype == UART_DEV_CONSOLE && !UART_FLAGS_CONSOLE(flags))
62 continue;
63 if (devtype == UART_DEV_DBGPORT && !UART_FLAGS_DBGPORT(flags))
64 continue;
65 /*
66 * We have a possible device. Make sure it's enabled and
67 * that we have an I/O port.
68 */
69 if (resource_int_value("uart", i, "disabled", &ivar) == 0 &&
70 ivar != 0)
71 continue;
72 if (resource_int_value("uart", i, "port", &ivar) != 0 ||
73 ivar == 0)
74 continue;
75 /*
76 * Got it. Fill in the instance and return it. We have
77 * both i8251 an ns8250 and successors on pc98.
78 */
79 if (flags & 0x100)
80 di->ops = uart_ns8250_ops;
81 else
82 di->ops = uart_i8251_ops;
83 di->bas.chan = 0;
| 58 /*
59 * There are 2 built-in serial ports on pc98 hardware. The
60 * first one is 8251 and the second one is I think an enhance
61 * version of that. However, for the sio driver, flags selected
62 * which type of uart was in the sytem. We use something similar
63 * to sort things out.
64 */
65 for (i = 0; i < 1; i++) {
66 if (resource_int_value("uart", i, "flags", &flags))
67 continue;
68 if (devtype == UART_DEV_CONSOLE && !UART_FLAGS_CONSOLE(flags))
69 continue;
70 if (devtype == UART_DEV_DBGPORT && !UART_FLAGS_DBGPORT(flags))
71 continue;
72 /*
73 * We have a possible device. Make sure it's enabled and
74 * that we have an I/O port.
75 */
76 if (resource_int_value("uart", i, "disabled", &ivar) == 0 &&
77 ivar != 0)
78 continue;
79 if (resource_int_value("uart", i, "port", &ivar) != 0 ||
80 ivar == 0)
81 continue;
82 /*
83 * Got it. Fill in the instance and return it. We have
84 * both i8251 an ns8250 and successors on pc98.
85 */
86 if (flags & 0x100)
87 di->ops = uart_ns8250_ops;
88 else
89 di->ops = uart_i8251_ops;
90 di->bas.chan = 0;
|
84 di->bas.bst = I386_BUS_SPACE_IO;
| 91 di->bas.bst = uart_bus_space_io;
|
85 if (bus_space_map(di->bas.bst, ivar, 8, 0, &di->bas.bsh) != 0)
86 continue;
87 di->bas.regshft = 0;
88 di->bas.rclk = 0;
89 if (resource_int_value("uart", i, "baud", &ivar) != 0)
90 ivar = 0;
91 di->baudrate = ivar;
92 di->databits = 8;
93 di->stopbits = 1;
94 di->parity = UART_PARITY_NONE;
95 return (0);
96 }
97
98 return (ENXIO);
99}
| 92 if (bus_space_map(di->bas.bst, ivar, 8, 0, &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}
|