diff options
| author | David Hendricks <dhendrix@chromium.org> | 2012-05-15 11:40:20 -0700 |
|---|---|---|
| committer | David Hendricks <dhendrix@chromium.org> | 2012-05-15 16:47:43 -0700 |
| commit | dd839d851aa6369a81423da9d59762950f21c592 (patch) | |
| tree | 5b133759a0a42d6e1d02ee864a95a7a94a6ea33d /board/daisy/board.c | |
| parent | db803efd3f947bcbd5bb1caa8949f7c4d3e59b0f (diff) | |
| download | chrome-ec-dd839d851aa6369a81423da9d59762950f21c592.tar.gz | |
daisy/snow: seperate EC_INT and CODEC_INT handling
This patch splits apart EC_INT and CODEC_INT handling for two reasons:
1. Allow other tasks to interrupt the AP without triggering
the keyboard noise suppression.
2. Allow more work to be done after a keystroke is detected but
before interrupting the AP. This is intended to prevent latency
issues with the noise suppression.
Also, Snow does not currently have CODEC_INT hooked up, so it
does not need the extra function for suppressing keystroke noise.
BUG=chrome-os-partner:9594
TEST=tested on daisy (keys still respond), locally compiled for snow.
Change-Id: I73bd42bb7263005b11724337162646092292556f
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'board/daisy/board.c')
| -rw-r--r-- | board/daisy/board.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/board/daisy/board.c b/board/daisy/board.c index 21ccdada28..56dbef212f 100644 --- a/board/daisy/board.c +++ b/board/daisy/board.c @@ -135,13 +135,16 @@ void configure_board(void) gpio_set_level(GPIO_EC_INT, 1); } -void board_keyboard_scan_ready(void) +void board_interrupt_host(void) { - /* notify audio codec of keypress for noise suppression */ - gpio_set_level(GPIO_CODEC_INT, 0); - gpio_set_level(GPIO_CODEC_INT, 1); - /* interrupt host by toggling EC_INT */ gpio_set_level(GPIO_EC_INT, 0); gpio_set_level(GPIO_EC_INT, 1); } + +void board_keyboard_suppress_noise(void) +{ + /* notify audio codec of keypress for noise suppression */ + gpio_set_level(GPIO_CODEC_INT, 0); + gpio_set_level(GPIO_CODEC_INT, 1); +} |