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// 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 */
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