Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/drivers/char/ip2.c
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
File MIME type: text/plain
File size: 2803 byte(s)
Tag kernel26-2.6.12-alx-r9
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 | |
27 | int |
28 | ip2_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 | */ |
34 | static int io[IP2_MAX_BOARDS]= { 0, 0, 0, 0 }; |
35 | static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 }; |
36 | |
37 | static int poll_only = 0; |
38 | |
39 | MODULE_AUTHOR("Doug McNash"); |
40 | MODULE_DESCRIPTION("Computone IntelliPort Plus Driver"); |
41 | module_param_array(irq, int, NULL, 0); |
42 | MODULE_PARM_DESC(irq,"Interrupts for IntelliPort Cards"); |
43 | module_param_array(io, int, NULL, 0); |
44 | MODULE_PARM_DESC(io,"I/O ports for IntelliPort Cards"); |
45 | module_param(poll_only, bool, 0); |
46 | MODULE_PARM_DESC(poll_only,"Do not use card interrupts"); |
47 | |
48 | |
49 | static 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 | } |
58 | module_init(ip2_init); |
59 | |
60 | MODULE_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 | ******************************************************************************/ |
84 | static 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 */ |