[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>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/parport.h b/include/linux/parport.h
index f67f838a3a1f..008d736a6c9a 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -128,6 +128,11 @@ struct amiga_parport_state {
        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 parport_state {
                 struct ax_parport_state ax;
                 struct amiga_parport_state amiga;
                 /* Atari has not state. */
+                struct ip32_parport_state ip32;
                 void *misc; 
         } u;
 };