Ondrej Jirman
f0f49c0fbc
Revert "firmware: Implement USB enabled/disable control via I2C"
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This reverts commit 176a2da7e2
2021-08-05 00:54:39 +02:00
Ondrej Jirman
7f1655be83
firmware: Don't trigger stop twice in i2c_a_read
2021-08-05 00:50:43 +02:00
Ondrej Jirman
5bef4c8832
Update TODO and I2C interface description
2021-08-02 12:13:56 +02:00
Ondrej Jirman
5fd891ecc0
firmware: Guard the timer manipulation macro argument
2021-08-02 11:53:31 +02:00
Samuel Holland
394af632aa
firmware: Allow to read/write single registers from a charger
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This code uses existing system command functionality. The I2C
registers are placed in front of system command register, to
allow for a single transaction proxied I2C A reads/writes.
Not tested, yet.
2021-08-02 11:52:54 +02:00
Ondrej Jirman
c3272eb4ef
firmware: Drop POLL mode from the register definition
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Polling mode was supposed to help with broken keyboard matrix, where
some keys are stuck, but this is handled well by the pre-existing code
already, so there's no need for this.
2021-08-02 10:23:42 +02:00
Ondrej Jirman
f7c90f1f74
firmware: Fix compilation issue by moving timer code a bit higher
2021-08-02 10:22:18 +02:00
Samuel Holland
1fd0bac031
firmware: Use REG_SYS macro where appropriate
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This shortens a very long line.
2021-08-02 10:17:09 +02:00
Samuel Holland
ce6638eb92
firmware: Remove unused variable
2021-08-02 10:14:24 +02:00
Samuel Holland
bd69a00f7a
common: Improve crc8 generation
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Start with 0xff instead of 0x00, so the CRC will be nonzero (and length
dependent) for data that is all zeroes.
Remove unnecessary masking, since `crc` is already an 8-bit integer.
2021-08-02 10:13:06 +02:00
Ondrej Jirman
3b723583e7
firmware: Make interrupt signal shorter (10us)
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This is long enough, comparable to 100kHz I2C speeds.
2021-08-02 10:12:48 +02:00
Ondrej Jirman
2fbc2e057e
firmware: Implement scanning block
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This allows to disable the keyboard. The firmware will never scan
for keys pressed in this mode, and it will powerdown the MCU most of the
time.
2021-08-02 10:12:48 +02:00
Ondrej Jirman
41418cdc14
firmware: Jump to stock firmware sooner after powerup
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Signed-off-by: Ondrej Jirman <megous@megous.com>
2021-08-02 10:12:48 +02:00
Ondrej Jirman
176a2da7e2
firmware: Implement USB enabled/disable control via I2C
2021-08-02 10:05:43 +02:00
Ondrej Jirman
134b4b6a8b
firmware: Move more of the USB shutdown control to usb_enable/usb_disable
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- make sure USB resources are re-enabled before jumping to bootloader
- make sure all USB resources are disabled prior to jumping to user fw
2021-08-02 10:03:48 +02:00
Ondrej Jirman
6a5fe581b9
Implement flashing over I2C and user/stock firmware support
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I2C register layout changed a bit to make various operations easier
to implement in FW and for the user.
Flashing/debugging tools now share more code. Firmware is now more
configurable (it's now possible to compile-out various features).
Self-testing for column-shorts is implemented.
Firmware is optimized for low power consumption.
2021-06-28 15:09:47 +02:00
Ondrej Jirman
04ca071b09
Fixup/document I2C
2021-06-19 02:51:23 +02:00
Ondrej Jirman
fbfa245ad4
Allow to use debug printing from interrupt handlers
2021-06-19 02:50:34 +02:00
Ondrej Jirman
2725248532
Add USB stack for easier printf() based debugging of the firmware
2021-06-18 19:43:11 +02:00
Ondrej Jirman
c8d8eef090
Fix key release change detection in polling mode
2021-06-18 18:28:56 +02:00
Ondrej Jirman
b9b02a5e73
Update some comments
2021-06-16 14:44:18 +02:00
Ondrej Jirman
bca8c47f46
Implement polled mode and key bitmap change signalling via external interrupt
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- this firmware consumes about 4-5 mA (can be probably made lower)
2021-06-16 14:09:25 +02:00
Ondrej Jirman
e59f647d83
Allow to switch to bootloader mode via FN+PINE+F
2021-06-15 09:21:31 +02:00
Ondrej Jirman
d3c45f58a4
Initial commit
2021-06-14 00:10:49 +02:00
