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https://github.com/edk2-porting/linux-next.git
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110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
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// ip2.c
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// This is a dummy module to make the firmware available when needed
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// and allows it to be unloaded when not. Rumor is the __initdata
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// macro doesn't always works on all platforms so we use this kludge.
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// If not compiled as a module it just makes fip_firm avaliable then
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// __initdata should work as advertized
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//
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/wait.h>
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#ifndef __init
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#define __init
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#endif
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#ifndef __initfunc
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#define __initfunc(a) a
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#endif
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#ifndef __initdata
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#define __initdata
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#endif
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#include "./ip2/ip2types.h"
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#include "./ip2/fip_firm.h" // the meat
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int
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ip2_loadmain(int *, int *, unsigned char *, int ); // ref into ip2main.c
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/* Note: Add compiled in defaults to these arrays, not to the structure
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in ip2/ip2.h any longer. That structure WILL get overridden
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by these values, or command line values, or insmod values!!! =mhw=
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*/
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static int io[IP2_MAX_BOARDS]= { 0, 0, 0, 0 };
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static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 };
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static int poll_only = 0;
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MODULE_AUTHOR("Doug McNash");
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MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
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module_param_array(irq, int, NULL, 0);
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MODULE_PARM_DESC(irq,"Interrupts for IntelliPort Cards");
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module_param_array(io, int, NULL, 0);
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MODULE_PARM_DESC(io,"I/O ports for IntelliPort Cards");
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module_param(poll_only, bool, 0);
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MODULE_PARM_DESC(poll_only,"Do not use card interrupts");
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static int __init ip2_init(void)
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{
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if( poll_only ) {
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/* Hard lock the interrupts to zero */
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irq[0] = irq[1] = irq[2] = irq[3] = 0;
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}
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return ip2_loadmain(io,irq,(unsigned char *)fip_firm,sizeof(fip_firm));
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}
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module_init(ip2_init);
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MODULE_LICENSE("GPL");
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#ifndef MODULE
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/******************************************************************************
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* ip2_setup:
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* str: kernel command line string
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*
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* Can't autoprobe the boards so user must specify configuration on
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* kernel command line. Sane people build it modular but the others
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* come here.
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*
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* Alternating pairs of io,irq for up to 4 boards.
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* ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
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*
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* io=0 => No board
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* io=1 => PCI
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* io=2 => EISA
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* else => ISA I/O address
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*
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* irq=0 or invalid for ISA will revert to polling mode
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*
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* Any value = -1, do not overwrite compiled in value.
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*
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******************************************************************************/
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static int __init ip2_setup(char *str)
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{
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int ints[10]; /* 4 boards, 2 parameters + 2 */
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int i, j;
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str = get_options (str, ARRAY_SIZE(ints), ints);
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for( i = 0, j = 1; i < 4; i++ ) {
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if( j > ints[0] ) {
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break;
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}
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if( ints[j] >= 0 ) {
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io[i] = ints[j];
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}
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j++;
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if( j > ints[0] ) {
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break;
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}
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if( ints[j] >= 0 ) {
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irq[i] = ints[j];
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}
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j++;
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}
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return 1;
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}
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__setup("ip2=", ip2_setup);
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#endif /* !MODULE */
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