tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// ip2.c
2// This is a dummy module to make the firmware available when needed
3// and allows it to be unloaded when not. Rumor is the __initdata
4// macro doesn't always works on all platforms so we use this kludge.
5// If not compiled as a module it just makes fip_firm avaliable then
6// __initdata should work as advertized
7//
8
9#include <linux/module.h>
10#include <linux/init.h>
11#include <linux/wait.h>
12
13#ifndef __init
14#define __init
15#endif
16#ifndef __initfunc
17#define __initfunc(a) a
18#endif
19#ifndef __initdata
20#define __initdata
21#endif
22
23#include "./ip2/ip2types.h"
24#include "./ip2/fip_firm.h" // the meat
25
26int
27ip2_loadmain(int *, int *, unsigned char *, int ); // ref into ip2main.c
28
29/* Note: Add compiled in defaults to these arrays, not to the structure
30 in ip2/ip2.h any longer. That structure WILL get overridden
31 by these values, or command line values, or insmod values!!! =mhw=
32*/
33static int io[IP2_MAX_BOARDS]= { 0, 0, 0, 0 };
34static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 };
35
36static int poll_only = 0;
37
38MODULE_AUTHOR("Doug McNash");
39MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
40module_param_array(irq, int, NULL, 0);
41MODULE_PARM_DESC(irq,"Interrupts for IntelliPort Cards");
42module_param_array(io, int, NULL, 0);
43MODULE_PARM_DESC(io,"I/O ports for IntelliPort Cards");
44module_param(poll_only, bool, 0);
45MODULE_PARM_DESC(poll_only,"Do not use card interrupts");
46
47
48static int __init ip2_init(void)
49{
50 if( poll_only ) {
51 /* Hard lock the interrupts to zero */
52 irq[0] = irq[1] = irq[2] = irq[3] = 0;
53 }
54
55 return ip2_loadmain(io,irq,(unsigned char *)fip_firm,sizeof(fip_firm));
56}
57module_init(ip2_init);
58
59MODULE_LICENSE("GPL");
60
61#ifndef MODULE
62/******************************************************************************
63 * ip2_setup:
64 * str: kernel command line string
65 *
66 * Can't autoprobe the boards so user must specify configuration on
67 * kernel command line. Sane people build it modular but the others
68 * come here.
69 *
70 * Alternating pairs of io,irq for up to 4 boards.
71 * ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
72 *
73 * io=0 => No board
74 * io=1 => PCI
75 * io=2 => EISA
76 * else => ISA I/O address
77 *
78 * irq=0 or invalid for ISA will revert to polling mode
79 *
80 * Any value = -1, do not overwrite compiled in value.
81 *
82 ******************************************************************************/
83static int __init ip2_setup(char *str)
84{
85 int ints[10]; /* 4 boards, 2 parameters + 2 */
86 int i, j;
87
88 str = get_options (str, ARRAY_SIZE(ints), ints);
89
90 for( i = 0, j = 1; i < 4; i++ ) {
91 if( j > ints[0] ) {
92 break;
93 }
94 if( ints[j] >= 0 ) {
95 io[i] = ints[j];
96 }
97 j++;
98 if( j > ints[0] ) {
99 break;
100 }
101 if( ints[j] >= 0 ) {
102 irq[i] = ints[j];
103 }
104 j++;
105 }
106 return 1;
107}
108__setup("ip2=", ip2_setup);
109#endif /* !MODULE */