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| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-11-24 14:12:01 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-02-01 22:10:46 +0100 |
| commit | 448e386309c20ed1d22360e06192b632af0af720 (patch) | |
| tree | 61f1b0a1c8ccb65a5efda1e6571b9edd7051bc98 /src/include/pc80 | |
| parent | c2ed40b48ae3e9874213d4e70e1ac3c5fbbba8fc (diff) | |
| download | coreboot-448e386309c20ed1d22360e06192b632af0af720.tar.gz coreboot-448e386309c20ed1d22360e06192b632af0af720.tar.bz2 coreboot-448e386309c20ed1d22360e06192b632af0af720.zip | |
drivers/pc80: Add PS/2 mouse presence detect
On certain Winbond SuperIO devices, when a PS/2 mouse is not
present on the auxiliary channel both channels will cease to
function if the auxiliary channel is probed while the primary
channel is active. Therefore, knowledge of mouse presence
must be gathered by coreboot during early boot, and used to
enable or disable the auxiliary PS/2 port before control is
passed to the operating system.
Add auxiliary channel PS/2 device presence detect, and update
the Winbond W83667HG-A driver to flag the auxiliary channel as
disabled if no device was detected.
Change-Id: I76274493dacc9016ac6d0dff8548d1dc931c6266
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/13165
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/include/pc80')
| -rw-r--r-- | src/include/pc80/keyboard.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/include/pc80/keyboard.h b/src/include/pc80/keyboard.h index 16cb9597994a..fa45826af314 100644 --- a/src/include/pc80/keyboard.h +++ b/src/include/pc80/keyboard.h @@ -1,7 +1,10 @@ #ifndef PC80_KEYBOARD_H #define PC80_KEYBOARD_H -void pc_keyboard_init(void); +#define NO_AUX_DEVICE 0 +#define PROBE_AUX_DEVICE 1 + +uint8_t pc_keyboard_init(uint8_t probe_aux); void set_kbc_ps2_mode(void); #endif /* PC80_KEYBOARD_H */ |