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| /linux/drivers/input/keyboard/ |
| H A D | pxa27x_keypad.c | diff 1814db69698479eec2c000a43c83b5f263f6fbb6 Thu Jan 31 06:58:37 CET 2008 Eric Miao <eric.y.miao@gmail.com> Input: pxa27x_keypad - introduce driver structure and use KEY() to define matrix keys
1. Introduce the "struct pxa27x_keypad" structure for driver specific
information, such as "struct clk", generated matrix key codes and
so on
2. Use KEY() macro to define matrix keys, instead of original 8x8 map
this makes definition easier with keypad where keys are sparse
3. Keep a generated array in "struct pxa27x_keypad" for fast lookup
4. Separate the matrix scan into a dedicated function for readability
and report only those keys whose state has been changed, instead
of report all states
5. Make use of KPAS to decide the faster path if only one key has been
detected
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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