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