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| author | Michael Hennerich <michael.hennerich@analog.com> | 2009-07-22 21:51:34 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-07-23 01:15:09 -0700 |
| commit | 4832958218f96f98009c5e01729fbe2b48c7124c (patch) | |
| tree | 2bb83fbf9b9f2ef3d60d2a2e3e55fa1b42a1f847 /arch/blackfin/include/asm/bfin_rotary.h | |
| parent | 52ec7752b457311f10f5a8d16faa8ac2e684eb65 (diff) | |
| download | linux-4832958218f96f98009c5e01729fbe2b48c7124c.tar.gz linux-4832958218f96f98009c5e01729fbe2b48c7124c.tar.bz2 linux-4832958218f96f98009c5e01729fbe2b48c7124c.zip | |
Input: add Blackfin rotary input driver
This driver handles the Blackfin on-chip rotary peripheral.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'arch/blackfin/include/asm/bfin_rotary.h')
| -rw-r--r-- | arch/blackfin/include/asm/bfin_rotary.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/bfin_rotary.h b/arch/blackfin/include/asm/bfin_rotary.h new file mode 100644 index 000000000000..425ece64fd5e --- /dev/null +++ b/arch/blackfin/include/asm/bfin_rotary.h @@ -0,0 +1,39 @@ +/* + * board initialization should put one of these structures into platform_data + * and place the bfin-rotary onto platform_bus named "bfin-rotary". + */ + +#ifndef _BFIN_ROTARY_H +#define _BFIN_ROTARY_H + +/* mode bitmasks */ +#define ROT_QUAD_ENC CNTMODE_QUADENC /* quadrature/grey code encoder mode */ +#define ROT_BIN_ENC CNTMODE_BINENC /* binary encoder mode */ +#define ROT_UD_CNT CNTMODE_UDCNT /* rotary counter mode */ +#define ROT_DIR_CNT CNTMODE_DIRCNT /* direction counter mode */ + +#define ROT_DEBE DEBE /* Debounce Enable */ + +#define ROT_CDGINV CDGINV /* CDG Pin Polarity Invert */ +#define ROT_CUDINV CUDINV /* CUD Pin Polarity Invert */ +#define ROT_CZMINV CZMINV /* CZM Pin Polarity Invert */ + +struct bfin_rotary_platform_data { + /* set rotary UP KEY_### or BTN_### in case you prefer + * bfin-rotary to send EV_KEY otherwise set 0 + */ + unsigned int rotary_up_key; + /* set rotary DOWN KEY_### or BTN_### in case you prefer + * bfin-rotary to send EV_KEY otherwise set 0 + */ + unsigned int rotary_down_key; + /* set rotary BUTTON KEY_### or BTN_### */ + unsigned int rotary_button_key; + /* set rotary Relative Axis REL_### in case you prefer + * bfin-rotary to send EV_REL otherwise set 0 + */ + unsigned int rotary_rel_code; + unsigned short debounce; /* 0..17 */ + unsigned short mode; +}; +#endif |