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path: root/drivers/char/ip2/ip2base.c
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Diffstat (limited to 'drivers/char/ip2/ip2base.c')
-rw-r--r--drivers/char/ip2/ip2base.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/char/ip2/ip2base.c b/drivers/char/ip2/ip2base.c
new file mode 100644
index 000000000000..435ccfc74958
--- /dev/null
+++ b/drivers/char/ip2/ip2base.c
@@ -0,0 +1,109 @@
+// 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/init.h>
+#include <linux/wait.h>
+
+#ifndef __init
+#define __init
+#endif
+#ifndef __initfunc
+#define __initfunc(a) a
+#endif
+#ifndef __initdata
+#define __initdata
+#endif
+
+#include "ip2types.h"
+#include "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.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 };
+
+static int poll_only = 0;
+
+MODULE_AUTHOR("Doug McNash");
+MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
+module_param_array(irq, int, NULL, 0);
+MODULE_PARM_DESC(irq,"Interrupts for IntelliPort Cards");
+module_param_array(io, int, NULL, 0);
+MODULE_PARM_DESC(io,"I/O ports for IntelliPort Cards");
+module_param(poll_only, bool, 0);
+MODULE_PARM_DESC(poll_only,"Do not use card interrupts");
+
+
+static int __init ip2_init(void)
+{
+ if( poll_only ) {
+ /* Hard lock the interrupts to zero */
+ irq[0] = irq[1] = irq[2] = irq[3] = 0;
+ }
+
+ return ip2_loadmain(io,irq,(unsigned char *)fip_firm,sizeof(fip_firm));
+}
+module_init(ip2_init);
+
+MODULE_LICENSE("GPL");
+
+#ifndef MODULE
+/******************************************************************************
+ * 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;
+}
+__setup("ip2=", ip2_setup);
+#endif /* !MODULE */