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Keyboard recovery used to persist until the next time the EC was
reset. It should release the next time the user turns on the system
via the lid or power button.
Signed-off-by: Randall Spangler <rspangler@chromium.org>
BUG=chrome-os-partner:10034
TEST=manual
1. power system on normally. not in recovery.
2. press Power+Esc+Refresh. System turns on into recovery.
3. shut system down
4. power system on with lid-open. System boots normally.
5. repeat steps 2-3, then power system on with power button. System boots normally.
Change-Id: I455c7191d128614629c50ba27d7ef977e414fe90
Reviewed-on: https://gerrit.chromium.org/gerrit/24409
Commit-Ready: Randall Spangler <rspangler@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Tristage all columns as soon as possible right after the power button is
pressed. This can avoid the silego chip to reset the EC.
Resume the interrupt mode after power button is released so that the
deasserted columns doesn't trigger EC reset.
Also change some function names for export.
BUG=chrome-os-partner:7486
TEST=
press g first, then power button. repeat many times. system is not rebooted.
press power button first, then g. repeat many times. system is not rebooted.
ESC+power is still reseting system.
The long press power button still shutdowns system.
Change-Id: Ie5dec20ec3d3c4ffbd4acf5a4dd7f63eec38af56
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This also updates the communication protocol between the EC and the AP in a
non backward compatible way.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=chrome-os-partner:9614
TEST=on Daisy with updated kernel driver, use the keyboard in ChromeOS
Change-Id: I5a50e9a74b9891153a37ea79318c8a66a1b0c5ca
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This CL adds a simple FIFO to store keystrokes. The keyboard_scan()
function will push keystrokes into the FIFO and is the only producer,
while keyboard_get_scan() will pop entries and is the only consumer.
BUG=chrome-os-partner:9594
TEST=tested on daisy
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Testing was mostly subjectively done by typing a sentence quickly
at the Chrome UI.
Change-Id: I6faff41b0f16b75d6426df13a239f84eb62634ec
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Provide the required plumbing for the stm32 keyboard scan code so that
the message layer will pick up keyboard scans.
The design is as follows:
- When a change in keyboard state is detected, the keyboard matrix
scanning code will call the board-specific board_keyboard_scan_ready()
function to interrupt the AP.
- The AP will initiate a CMDC_KEY_STATE transaction over SPI or I2C
- The SPI or I2C driver will call message_process_cmd() to process the
command
- This in turn will call keyboard_get_scan() to get the latest scan data
For SPI:
- The AP will initiate an 20-byte (or longer) SPI transaction
- The EC will see the command, and provide the keyboard state in response,
with the response being part of the same transaction
For I2C:
- The AP will initiate a 1-byte write to set the EC mode.
- The AP will then initiate an 18-byte read, and the EC will send the
message including keyboard state
BUG=chromium-os:28925
TEST=build on daisy and discovery; run on daisy
Change-Id: I905ef9d567e43d85fb851052f67586eff58e1167
Signed-off-by: Simon Glass <sjg@chromium.org>
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Signed-off-by: Randall Spangler <rspangler@chromium.org>
BUG=chrome-os-partner:7451
TEST=hold down no keys; KB init state should be blank
hold down reload (F3); KB init should indicate recovery key pressed
hold down F3 + ESC; same
hold down F3 + F2 + ESC; KB init should NOT indicate recovery key pressed
Change-Id: I0fbf15407b20669396f667e6499ee5a9d545a4d5
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source files mainly done by Randall.
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Change-Id: Iaff83a842b17f3350fb6f2a3f1597ad4c29bd12a
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