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authorJaya Kumar <jayakumar.lkml@gmail.com>2010-03-10 15:21:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-12 15:52:34 -0800
commit2afb18981739a1426af2a6c952e03c5966b3dfc6 (patch)
treefb1feeb9e7882a4810bf9088959e33a1148bc090 /include/video
parente17cea3cece6d3ec47a5b358821505943abe6541 (diff)
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broadsheetfb: add MMIO hooks
Allow boards with GP-MMIO controllers to provide hooks to broadsheetfb in order to offload cmd/data writes and data reads instead of relying only on host based GPIO wiggling. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/video')
-rw-r--r--include/video/broadsheetfb.h17
1 files changed, 13 insertions, 4 deletions
diff --git a/include/video/broadsheetfb.h b/include/video/broadsheetfb.h
index a2c2829ceb3..d65b6689e92 100644
--- a/include/video/broadsheetfb.h
+++ b/include/video/broadsheetfb.h
@@ -34,6 +34,10 @@
#define BS_DC 0x02
#define BS_WR 0x03
+/* Broadsheet IO interface specific defines */
+#define BS_MMIO_CMD 0x01
+#define BS_MMIO_DATA 0x02
+
/* struct used by broadsheet. board specific stuff comes from *board */
struct broadsheetfb_par {
struct fb_info *info;
@@ -49,12 +53,17 @@ struct broadsheet_board {
struct module *owner;
int (*init)(struct broadsheetfb_par *);
int (*wait_for_rdy)(struct broadsheetfb_par *);
- void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8);
- void (*set_hdb)(struct broadsheetfb_par *, u16);
- u16 (*get_hdb)(struct broadsheetfb_par *);
void (*cleanup)(struct broadsheetfb_par *);
int (*get_panel_type)(void);
int (*setup_irq)(struct fb_info *);
-};
+ /* Functions for boards that use GPIO */
+ void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8);
+ void (*set_hdb)(struct broadsheetfb_par *, u16);
+ u16 (*get_hdb)(struct broadsheetfb_par *);
+
+ /* Functions for boards that have specialized MMIO */
+ void (*mmio_write)(struct broadsheetfb_par *, int type, u16);
+ u16 (*mmio_read)(struct broadsheetfb_par *);
+};
#endif