scottk/OpenCellular
1
0
Fork 0
mirror of https://github.com/Telecominfraproject/OpenCellular.git synced 2026-01-07 16:11:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

keyboard: it83xx: add COL02 inverted feature

Browse Source 
The other chips support this feature so we implement it too.

Signed-off-by: Dino Li <dino.li@ite.com.tw>

BRANCH=none
BUG=none
TEST=The behavior of kso2 is inverted
     if define 'CONFIG_KEYBOARD_COL2_INVERTED'.

Change-Id: I70d1694ca7d3d10278a484a632e88dc204b71b23
Reviewed-on: https://chromium-review.googlesource.com/342488
Commit-Ready: Dino Li <dino.li@ite.com.tw>
Tested-by: Dino Li <dino.li@ite.com.tw>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Dino Li
2016-05-05 13:37:39 +08:00
committed by chrome-bot
parent 3391ef950a
commit 26afde3331
1 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
chip/it83xx/keyboard_raw.c
View File

@@ -29,8 +29,13 @@ void keyboard_raw_init(void)
/* bit2, 1 enables the internal pull-up of the KSI[7:0] pins. */
IT83XX_KBS_KSICTRL = 0x04;
#ifdef CONFIG_KEYBOARD_COL2_INVERTED
/* KSO[2] is high, others are low. */
IT83XX_KBS_KSOL = (1 << 2);
#else
/* KSO[7:0] pins low. */
IT83XX_KBS_KSOL = 0x00;
#endif
/* KSO[15:8] pins low. */
IT83XX_KBS_KSOH1 = 0x00;
@@ -74,6 +79,10 @@ test_mockable void keyboard_raw_drive_column(int col)
else
mask = 0xffff ^ (1 << col);
#ifdef CONFIG_KEYBOARD_COL2_INVERTED
/* KSO[2] is inverted. */
mask ^= (1 << 2);
#endif
IT83XX_KBS_KSOL = mask & 0xff;
IT83XX_KBS_KSOH1 = (mask >> 8) & 0xff;
}