| // ip2.c |
| // This is a dummy module to make the firmware available when needed |
| // and allows it to be unloaded when not. Rumor is the __initdata |
| // macro doesn't always works on all platforms so we use this kludge. |
| // If not compiled as a module it just makes fip_firm avaliable then |
| // __initdata should work as advertized |
| // |
| |
| #include <linux/module.h> |
| #include <linux/version.h> |
| #include <linux/init.h> |
| #include <linux/wait.h> |
| |
| #ifndef __init |
| #define __init |
| #endif |
| #ifndef __initfunc |
| #define __initfunc(a) a |
| #endif |
| #ifndef __initdata |
| #define __initdata |
| #endif |
| |
| #include "./ip2/ip2types.h" |
| #include "./ip2/fip_firm.h" // the meat |
| |
| int |
| ip2_loadmain(int *, int *, unsigned char *, int ); // ref into ip2main.c |
| |
| /* Note: Add compiled in defaults to these arrays, not to the structure |
| in ip2/ip2.h any longer. That structure WILL get overridden |
| by these values, or command line values, or insmod values!!! =mhw= |
| */ |
| static int io[IP2_MAX_BOARDS]= { 0, 0, 0, 0 }; |
| static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 }; |
| |
| #ifdef MODULE |
| |
| static int poll_only = 0; |
| |
| # if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) |
| MODULE_AUTHOR("Doug McNash"); |
| MODULE_DESCRIPTION("Computone IntelliPort Plus Driver"); |
| MODULE_PARM(irq,"1-"__MODULE_STRING(IP2_MAX_BOARDS) "i"); |
| MODULE_PARM_DESC(irq,"Interrupts for IntelliPort Cards"); |
| MODULE_PARM(io,"1-"__MODULE_STRING(IP2_MAX_BOARDS) "i"); |
| MODULE_PARM_DESC(io,"I/O ports for IntelliPort Cards"); |
| MODULE_PARM(poll_only,"1i"); |
| MODULE_PARM_DESC(poll_only,"Do not use card interrupts"); |
| # endif /* LINUX_VERSION */ |
| |
| |
| //====================================================================== |
| int |
| init_module(void) |
| { |
| int rc; |
| |
| MOD_INC_USE_COUNT; // hold till done |
| |
| if( poll_only ) { |
| /* Hard lock the interrupts to zero */ |
| irq[0] = irq[1] = irq[2] = irq[3] = 0; |
| } |
| |
| rc = ip2_loadmain(io,irq,(unsigned char *)fip_firm,sizeof(fip_firm)); |
| // The call to lock and load main, create dep |
| |
| MOD_DEC_USE_COUNT; //done - kerneld now can unload us |
| return rc; |
| } |
| |
| //====================================================================== |
| int |
| ip2_init(void) |
| { |
| // call to this is in tty_io.c so we need this |
| return 0; |
| } |
| |
| //====================================================================== |
| void |
| cleanup_module(void) |
| { |
| } |
| |
| MODULE_LICENSE("GPL"); |
| |
| #else // !MODULE |
| |
| #ifndef NULL |
| # define NULL ((void *) 0) |
| #endif |
| |
| /****************************************************************************** |
| * ip2_setup: |
| * str: kernel command line string |
| * |
| * Can't autoprobe the boards so user must specify configuration on |
| * kernel command line. Sane people build it modular but the others |
| * come here. |
| * |
| * Alternating pairs of io,irq for up to 4 boards. |
| * ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3 |
| * |
| * io=0 => No board |
| * io=1 => PCI |
| * io=2 => EISA |
| * else => ISA I/O address |
| * |
| * irq=0 or invalid for ISA will revert to polling mode |
| * |
| * Any value = -1, do not overwrite compiled in value. |
| * |
| ******************************************************************************/ |
| static int __init ip2_setup(char *str) |
| { |
| int ints[10]; /* 4 boards, 2 parameters + 2 */ |
| int i, j; |
| |
| str = get_options (str, ARRAY_SIZE(ints), ints); |
| |
| for( i = 0, j = 1; i < 4; i++ ) { |
| if( j > ints[0] ) { |
| break; |
| } |
| if( ints[j] >= 0 ) { |
| io[i] = ints[j]; |
| } |
| j++; |
| if( j > ints[0] ) { |
| break; |
| } |
| if( ints[j] >= 0 ) { |
| irq[i] = ints[j]; |
| } |
| j++; |
| } |
| return 1; |
| } |
| |
| int |
| ip2_init(void) { |
| return ip2_loadmain(io,irq,(unsigned char *)fip_firm,sizeof(fip_firm)); |
| } |
| |
| #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,13)) |
| __setup("ip2=", ip2_setup); |
| __initcall(ip2_init); |
| #endif |
| |
| #endif /* !MODULE */ |