1/*-
2 * Copyright (c) 2003 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 *
| 1/*-
2 * Copyright (c) 2003 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 * $FreeBSD: head/sys/dev/uart/uart.h 279723 2015-03-07 15:18:57Z ian $
| 26 * $FreeBSD: head/sys/dev/uart/uart.h 279724 2015-03-07 15:24:15Z ian $
|
27 */
28
29#ifndef _DEV_UART_H_
30#define _DEV_UART_H_
31
32/*
33 * Bus access structure. This structure holds the minimum information needed
34 * to access the UART. The rclk field, although not important to actually
35 * access the UART, is important for baudrate programming, delay loops and
36 * other timing related computations.
37 */
38struct uart_bas {
39 bus_space_tag_t bst;
40 bus_space_handle_t bsh;
41 u_int chan;
42 u_int rclk;
43 u_int regshft;
44};
45
46#define uart_regofs(bas, reg) ((reg) << (bas)->regshft)
47
48#define uart_getreg(bas, reg) \
49 bus_space_read_1((bas)->bst, (bas)->bsh, uart_regofs(bas, reg))
50#define uart_setreg(bas, reg, value) \
51 bus_space_write_1((bas)->bst, (bas)->bsh, uart_regofs(bas, reg), value)
52
53/*
54 * XXX we don't know the length of the bus space address range in use by
55 * the UART. Since barriers don't use the length field currently, we put
56 * a zero there for now.
57 */
58#define uart_barrier(bas) \
59 bus_space_barrier((bas)->bst, (bas)->bsh, 0, 0, \
60 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
61
62/*
63 * UART device classes.
64 */
65struct uart_class;
66
| 27 */
28
29#ifndef _DEV_UART_H_
30#define _DEV_UART_H_
31
32/*
33 * Bus access structure. This structure holds the minimum information needed
34 * to access the UART. The rclk field, although not important to actually
35 * access the UART, is important for baudrate programming, delay loops and
36 * other timing related computations.
37 */
38struct uart_bas {
39 bus_space_tag_t bst;
40 bus_space_handle_t bsh;
41 u_int chan;
42 u_int rclk;
43 u_int regshft;
44};
45
46#define uart_regofs(bas, reg) ((reg) << (bas)->regshft)
47
48#define uart_getreg(bas, reg) \
49 bus_space_read_1((bas)->bst, (bas)->bsh, uart_regofs(bas, reg))
50#define uart_setreg(bas, reg, value) \
51 bus_space_write_1((bas)->bst, (bas)->bsh, uart_regofs(bas, reg), value)
52
53/*
54 * XXX we don't know the length of the bus space address range in use by
55 * the UART. Since barriers don't use the length field currently, we put
56 * a zero there for now.
57 */
58#define uart_barrier(bas) \
59 bus_space_barrier((bas)->bst, (bas)->bsh, 0, 0, \
60 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
61
62/*
63 * UART device classes.
64 */
65struct uart_class;
66
|
67extern struct uart_class uart_imx_class __attribute__((weak));
68extern struct uart_class uart_msm_class __attribute__((weak));
| |
69extern struct uart_class uart_ns8250_class __attribute__((weak));
70extern struct uart_class uart_quicc_class __attribute__((weak));
71extern struct uart_class uart_s3c2410_class __attribute__((weak));
72extern struct uart_class uart_sab82532_class __attribute__((weak));
73extern struct uart_class uart_sbbc_class __attribute__((weak));
74extern struct uart_class uart_z8530_class __attribute__((weak));
| 67extern struct uart_class uart_ns8250_class __attribute__((weak));
68extern struct uart_class uart_quicc_class __attribute__((weak));
69extern struct uart_class uart_s3c2410_class __attribute__((weak));
70extern struct uart_class uart_sab82532_class __attribute__((weak));
71extern struct uart_class uart_sbbc_class __attribute__((weak));
72extern struct uart_class uart_z8530_class __attribute__((weak));
|
75extern struct uart_class uart_lpc_class __attribute__((weak));
76extern struct uart_class uart_pl011_class __attribute__((weak));
77extern struct uart_class uart_cdnc_class __attribute__((weak));
78extern struct uart_class uart_ti8250_class __attribute__((weak));
79extern struct uart_class uart_vybrid_class __attribute__((weak));
80extern struct uart_class at91_usart_class __attribute__((weak));
81extern struct uart_class uart_exynos4210_class __attribute__((weak));
| |
82
| 73
|
83
| |
84#ifdef PC98
85struct uart_class *uart_pc98_getdev(u_long port);
86#endif
87
88/*
89 * Device flags.
90 */
91#define UART_FLAGS_CONSOLE(f) ((f) & 0x10)
92#define UART_FLAGS_DBGPORT(f) ((f) & 0x80)
93#define UART_FLAGS_FCR_RX_LOW(f) ((f) & 0x100)
94#define UART_FLAGS_FCR_RX_MEDL(f) ((f) & 0x200)
95#define UART_FLAGS_FCR_RX_MEDH(f) ((f) & 0x400)
96#define UART_FLAGS_FCR_RX_HIGH(f) ((f) & 0x800)
97
98/*
99 * Data parity values (magical numbers related to ns8250).
100 */
101#define UART_PARITY_NONE 0
102#define UART_PARITY_ODD 1
103#define UART_PARITY_EVEN 3
104#define UART_PARITY_MARK 5
105#define UART_PARITY_SPACE 7
106
107#endif /* _DEV_UART_H_ */
| 74#ifdef PC98
75struct uart_class *uart_pc98_getdev(u_long port);
76#endif
77
78/*
79 * Device flags.
80 */
81#define UART_FLAGS_CONSOLE(f) ((f) & 0x10)
82#define UART_FLAGS_DBGPORT(f) ((f) & 0x80)
83#define UART_FLAGS_FCR_RX_LOW(f) ((f) & 0x100)
84#define UART_FLAGS_FCR_RX_MEDL(f) ((f) & 0x200)
85#define UART_FLAGS_FCR_RX_MEDH(f) ((f) & 0x400)
86#define UART_FLAGS_FCR_RX_HIGH(f) ((f) & 0x800)
87
88/*
89 * Data parity values (magical numbers related to ns8250).
90 */
91#define UART_PARITY_NONE 0
92#define UART_PARITY_ODD 1
93#define UART_PARITY_EVEN 3
94#define UART_PARITY_MARK 5
95#define UART_PARITY_SPACE 7
96
97#endif /* _DEV_UART_H_ */
|