On Tue, 8 Aug 2000 15:51:21 +1000 (EST), greyham at research.canon.com.au
(Graham Stoney) writes:
>Setting the SIEL is trivial enough,
Yes, but this might save you 5 minutes, if you choose to do it in
the kernel :-)
--- arch/ppc/kernel/ppc8xx_pic.c 2000/04/25 11:08:12 1.1.1.4
+++ arch/ppc/kernel/ppc8xx_pic.c 2000/08/08 08:29:59
@@ -156,3 +156,20 @@
panic("request_irq");
#endif
}
+
+void
+m8xx_set_irq_sense(unsigned int irq_nr, int isedge)
+{
+ volatile uint *psiel = &((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel;
+ unsigned int mask;
+
+ if (irq_nr >= NR_SIU_INTS || (irq_nr & 1) != 0)
+ panic("m8xx_set_irq_sense got bad irq number (%d)", irq_nr);
+
+ mask = 1 << (31 - irq_nr);
+
+ if (isedge != 0)
+ *psiel |= mask;
+ else
+ *psiel &= ~mask;
+}
--- arch/ppc/kernel/ppc8xx_pic.h 1999/12/20 06:33:23 1.1.1.2
+++ arch/ppc/kernel/ppc8xx_pic.h 2000/01/24 06:49:15 1.3
@@ -18,4 +18,6 @@
void mbx_i8259_action(int cpl, void *dev_id, struct pt_regs *regs);
#endif
+void m8xx_set_irq_sense(unsigned int irq_nr, int isedge);
+
#endif /* _PPC_KERNEL_PPC8xx_H */
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