1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*-
* Copyright (c) 2005 Olivier Houchard. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "opt_uart.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
#include <dev/uart/uart_cpu.h>
#include <arm/at91/at91var.h>
#include "uart_if.h"
extern struct uart_class at91_usart_class;
static int usart_at91_probe(device_t dev);
static device_method_t usart_at91_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, usart_at91_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
{ 0, 0 }
};
static driver_t usart_at91_driver = {
uart_driver_name,
usart_at91_methods,
sizeof(struct uart_softc),
};
extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
static int
usart_at91_probe(device_t dev)
{
struct uart_softc *sc;
sc = device_get_softc(dev);
switch (device_get_unit(dev))
{
case 0:
device_set_desc(dev, "DBGU");
/*
* Setting sc_sysdev makes this device a 'system device' and
* indirectly makes it the system console.
*/
sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
break;
case 1:
device_set_desc(dev, "USART0");
break;
case 2:
device_set_desc(dev, "USART1");
break;
case 3:
device_set_desc(dev, "USART2");
break;
case 4:
device_set_desc(dev, "USART3");
break;
case 5:
device_set_desc(dev, "USART4");
break;
case 6:
device_set_desc(dev, "USART5");
break;
}
sc->sc_class = &at91_usart_class;
if (sc->sc_class->uc_rclk == 0)
sc->sc_class->uc_rclk = at91_master_clock;
return (uart_bus_probe(dev, 0, 0, 0, device_get_unit(dev)));
}
DRIVER_MODULE(uart, atmelarm, usart_at91_driver, uart_devclass, 0, 0);
|
