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
112
113
114
|
/* $Id: parport_init.c,v 1.1 1997/07/25 01:53:14 ralf Exp $
* Parallel-port initialisation code.
*
* Authors: David Campbell <campbell@tirian.che.curtin.edu.au>
* Tim Waugh <tmw20@cam.ac.uk>
* Jose Renau <renau@acm.org>
*
* based on work by Grant Guenther <grant@torque.net>
* and Philip Blundell <Philip.Blundell@pobox.com>
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/tasks.h>
#include <linux/parport.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/malloc.h>
#include <linux/init.h>
#ifndef MODULE
static int io[PARPORT_MAX+1] __initdata = { 0, };
static int irq[PARPORT_MAX] __initdata = { PARPORT_IRQ_NONE, };
static int dma[PARPORT_MAX] __initdata = { PARPORT_DMA_NONE, };
extern int parport_pc_init(int *io, int *irq, int *dma);
static int parport_setup_ptr __initdata = 0;
__initfunc(void parport_setup(char *str, int *ints))
{
if (ints[0] == 0 || ints[1] == 0) {
/* Disable parport if "parport=" or "parport=0" in cmdline */
io[0] = PARPORT_DISABLE;
return;
}
if (parport_setup_ptr < PARPORT_MAX) {
io[parport_setup_ptr] = ints[1];
if (ints[0]>1) {
irq[parport_setup_ptr] = ints[2];
if (ints[0]>2) dma[parport_setup_ptr] = ints[3];
}
parport_setup_ptr++;
} else {
printk(KERN_ERR "parport=0x%x", ints[1]);
if (ints[0]>1) {
printk(",%d", ints[2]);
if (ints[0]>2) printk(",%d", ints[3]);
}
printk(" ignored, too many ports.\n");
}
}
#endif
#ifdef MODULE
int init_module(void)
{
return 0;
}
void cleanup_module(void)
{
struct parport *port, *next;
for (port = parport_enumerate(); port; port = next) {
next = port->next;
if (!(port->flags & PARPORT_FLAG_COMA))
parport_quiesce(port);
parport_proc_unregister(port);
kfree(port->name);
kfree(port);
}
parport_proc_cleanup();
}
#else
__initfunc(int parport_init(void))
{
struct parport *pb;
if (io[0] == PARPORT_DISABLE) return 1;
#ifdef CONFIG_PARPORT_PC
parport_pc_init(io, irq, dma);
#endif
return 0;
}
#endif
/* Exported symbols for modules. */
EXPORT_SYMBOL(parport_claim);
EXPORT_SYMBOL(parport_release);
EXPORT_SYMBOL(parport_register_port);
EXPORT_SYMBOL(parport_quiesce);
EXPORT_SYMBOL(parport_register_device);
EXPORT_SYMBOL(parport_unregister_device);
EXPORT_SYMBOL(parport_enumerate);
EXPORT_SYMBOL(parport_ieee1284_nibble_mode_ok);
EXPORT_SYMBOL(parport_wait_peripheral);
void inc_parport_count(void)
{
#ifdef MODULE
MOD_INC_USE_COUNT;
#endif
}
void dec_parport_count(void)
{
#ifdef MODULE
MOD_DEC_USE_COUNT;
#endif
}
|
