diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/char/ip2.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/char/ip2.c')
-rw-r--r-- | drivers/char/ip2.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/char/ip2.c b/drivers/char/ip2.c new file mode 100644 index 00000000000..6cd12f23aa5 --- /dev/null +++ b/drivers/char/ip2.c | |||
@@ -0,0 +1,110 @@ | |||
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 */ | ||