diff options
| author | Vic Yang <victoryang@chromium.org> | 2014-05-29 14:15:38 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-05-31 03:57:33 +0000 |
| commit | 4b396a05c455654b570c1c59ea44250be21b1075 (patch) | |
| tree | 34138385fbb466bf62f36c8393ecd003e4c8a4b1 | |
| parent | 200246949abb240788d89645c572d14f0a0a8b96 (diff) | |
| download | chrome-ec-4b396a05c455654b570c1c59ea44250be21b1075.tar.gz | |
Keyborg: options to turn on/off fast scan mode
For experiments, we sometimes need to turn off fast scan mode. Let's add
an option so that this can be easily done.
BUG=None
TEST=Manual test with fast scan mode on/off.
BRANCH=None
Change-Id: Icd9a4a4b18699f34f424e84167748fcfe30588e3
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/202141
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
| -rw-r--r-- | board/keyborg/board.h | 1 | ||||
| -rw-r--r-- | board/keyborg/touch_scan.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/board/keyborg/board.h b/board/keyborg/board.h index d0dadffc2d..b1750575a6 100644 --- a/board/keyborg/board.h +++ b/board/keyborg/board.h @@ -13,6 +13,7 @@ /* Optional features */ #define CONFIG_DEBUG_PRINTF +#define CONFIG_KEYBORG_FAST_SCAN #undef CONFIG_ADC #undef CONFIG_COMMON_GPIO #undef CONFIG_COMMON_PANIC_OUTPUT diff --git a/board/keyborg/touch_scan.c b/board/keyborg/touch_scan.c index b69ccfe33f..01642d2958 100644 --- a/board/keyborg/touch_scan.c +++ b/board/keyborg/touch_scan.c @@ -148,6 +148,7 @@ static inline void set_scan_needed(int col) scan_needed[word + 1] |= SPAN_MASK >> (32 - bit); } +#ifdef CONFIG_KEYBORG_FAST_SCAN int fast_scan(uint32_t *data) { int col; @@ -181,6 +182,17 @@ int fast_scan(uint32_t *data) return EC_SUCCESS; } +#else +int fast_scan(uint32_t *data) +{ + int col; + + for (col = 0; col < COL_COUNT * 2; ++col) + set_scan_needed(col); + + return EC_SUCCESS; +} +#endif void scan_column(uint8_t *data) { |