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 *

--- 11 unchanged lines hidden (view full) ---

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 153363 2005-12-12 21:00:58Z imp $");
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>

--- 7 unchanged lines hidden (view full) ---

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 di->ops = uart_ns8250_ops;
56 if (uart_getenv(devtype, di) == 0)
57 return (0);
58
59 /*
60 * There is a serial port on all pc98 hardware. It is 8251 or
61 * an enhance version of that. Some pc98 have the second serial
62 * port which is 16550A compatible. However, for the sio driver,
63 * flags selected which type of uart was in the sytem. We use
64 * something similar to sort things out.

--- 11 unchanged lines hidden (view full) ---

76 */
77 if (resource_int_value("uart", i, "disabled", &ivar) == 0 &&
78 ivar != 0)
79 continue;
80 if (resource_int_value("uart", i, "port", &ivar) != 0 ||
81 ivar == 0)
82 continue;
83
84 di->ops = uart_ns8250_ops;
85 di->bas.chan = 0;
86 di->bas.bst = uart_bus_space_io;
87 if (bus_space_map(di->bas.bst, ivar, 8, 0, &di->bas.bsh) != 0)
88 continue;
89 di->bas.regshft = 0;
90 di->bas.rclk = 0;
91 if (resource_int_value("uart", i, "baud", &ivar) != 0)
92 ivar = 0;
93 di->baudrate = ivar;
94 di->databits = 8;
95 di->stopbits = 1;
96 di->parity = UART_PARITY_NONE;
97 return (0);
98 }
99
100 return (ENXIO);
101}