[PATCH] parport: add parallel port support for SGI O2
Add support for the built-in parallel port on SGI O2 (a.k.a. IP32).
Define a new configuration option: PARPORT_IP32. The module is named
parport_ip32.
Hardware support for SPP, EPP and ECP modes along with DMA support when
available are currently implemented.
Signed-off-by: Arnaud Giersch <arnaud.giersch@free.fr>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/parport.h b/include/linux/parport.h
index f67f838..008d736 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -128,6 +128,11 @@
unsigned char statusdir;/* ciab.ddrb & 7 */
};
+struct ip32_parport_state {
+ unsigned int dcr;
+ unsigned int ecr;
+};
+
struct parport_state {
union {
struct pc_parport_state pc;
@@ -135,6 +140,7 @@
struct ax_parport_state ax;
struct amiga_parport_state amiga;
/* Atari has not state. */
+ struct ip32_parport_state ip32;
void *misc;
} u;
};