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1da177e4 LT |
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> | |
1da177e4 LT |
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 | ||
26 | int | |
27 | ip2_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 | */ | |
33 | static int io[IP2_MAX_BOARDS]= { 0, 0, 0, 0 }; | |
34 | static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 }; | |
35 | ||
36 | static int poll_only = 0; | |
37 | ||
38 | MODULE_AUTHOR("Doug McNash"); | |
39 | MODULE_DESCRIPTION("Computone IntelliPort Plus Driver"); | |
40 | module_param_array(irq, int, NULL, 0); | |
41 | MODULE_PARM_DESC(irq,"Interrupts for IntelliPort Cards"); | |
42 | module_param_array(io, int, NULL, 0); | |
43 | MODULE_PARM_DESC(io,"I/O ports for IntelliPort Cards"); | |
44 | module_param(poll_only, bool, 0); | |
45 | MODULE_PARM_DESC(poll_only,"Do not use card interrupts"); | |
46 | ||
47 | ||
48 | static 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 | } | |
57 | module_init(ip2_init); | |
58 | ||
59 | MODULE_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 | ******************************************************************************/ | |
83 | static 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 */ |