3726b6adc2
Pull-up port 8 upper nibble of pins and keep them as inputs
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This avoids pulling them low temporarily during startup.
2023-02-18 02:51:20 +01:00
6fbfb61c14
Revert "Add extra 50uA savings by disabling the USB 3.3V regulator"
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This reverts commit c4f36fdb14
2023-02-17 18:49:01 +01:00
470f230d15
Disable USB stack in stock firmware by default, for max power savings
2023-02-17 17:31:47 +01:00
c4f36fdb14
Add extra 50uA savings by disabling the USB 3.3V regulator
2023-02-17 17:31:47 +01:00
b24b0f1d84
Configure MCU pins properly to avoid floating inputs
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This reduces the power consumption of the MCU significantly.
2023-02-17 16:46:12 +01:00
6145b3df0a
Fix re-entry to sleep after the first keypress
2023-02-17 14:02:28 +01:00
61e90842de
Fix no-USB build of the stock firwmare
2023-02-17 14:01:33 +01:00
4b3d885b61
Check that no key is pressed right after setting up IC interrupt and before going to sleep
2023-02-17 14:00:32 +01:00
0899765c07
Don't declare variables that are unused in certain firmware configurations
2023-02-17 13:59:18 +01:00
31c41b7d9e
Drop I2C bit functions, to make timing easier to modify
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I2C to the charger now has clean 100kHz timing. One read command now takes
400us, and one write command takes 300us to execute.
2021-09-05 02:26:55 +02:00
78c72fe448
Make register define order less confusing
2021-09-05 02:07:12 +02:00
21374993b3
Allow to reset to stock firmware from user firmware by holding pine+f+h
2021-09-05 01:58:48 +02:00
0b280ebc14
Fix I2C bit banging code
2021-09-05 01:57:58 +02:00
574d68aa89
fw: Change to bit-banging I2C implementation for charger comm
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New code, compiles, but it's not tested yet!
2021-09-01 00:48:27 +02:00
f1e3f6dce6
Drop prototype keyboard build
2021-08-31 19:00:18 +02:00
246aaaa42e
firmware: Statically allocate keys array
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Allocating the array on the stack before initializing the stack pointer
does not work.
2021-08-05 21:17:09 -05:00
3c6488b99e
Disable I2CA in all firmware builds
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It is unlikely that any future revision of the hardware will use I2CA.
2021-08-05 21:17:09 -05:00
3107546c04
Revert "firmware: Make interrupt signal shorter (10us)"
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The longer duration is actually required, likely due to debouncing
applied on the SoC side. Even 50us was unreliable.
This reverts commit 3b723583e7
2021-08-05 21:17:09 -05:00
f8b901e832
firmware: Add final/proto-v3 builds
2021-08-05 03:40:07 +02:00
c5c155ca68
firmware: Allow to prevent jump to user fw after powerup by pressing Pine + F + H
2021-08-05 03:33:04 +02:00
b244ab9c9f
firmware: Set stack pointer to a correct value
2021-08-05 02:51:51 +02:00
c195dabe04
firmware: Whitespace
2021-08-05 02:29:36 +02:00
15d477f5ba
firmware: Fix I2C A forwarding mode
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- add charger INT check prior to transaction via P87
- re-route POGO int to P84
- wrong macro name, fix CONFIG_I2C_A=0 mode
2021-08-05 02:29:23 +02:00
c55f0a44d5
firmware: Post-revert fixup
2021-08-05 02:27:39 +02:00
4e89074513
Revert "firmware: Move more of the USB shutdown control to usb_enable/usb_disable"
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This reverts commit 134b4b6a8b
2021-08-05 00:54:46 +02:00
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
7f1655be83
firmware: Don't trigger stop twice in i2c_a_read
2021-08-05 00:50:43 +02:00
5bef4c8832
Update TODO and I2C interface description
2021-08-02 12:13:56 +02:00
5fd891ecc0
firmware: Guard the timer manipulation macro argument
2021-08-02 11:53:31 +02:00
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
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
f7c90f1f74
firmware: Fix compilation issue by moving timer code a bit higher
2021-08-02 10:22:18 +02:00
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
ce6638eb92
firmware: Remove unused variable
2021-08-02 10:14:24 +02:00
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
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
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
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
176a2da7e2
firmware: Implement USB enabled/disable control via I2C
2021-08-02 10:05:43 +02:00
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
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
04ca071b09
Fixup/document I2C
2021-06-19 02:51:23 +02:00
fbfa245ad4
Allow to use debug printing from interrupt handlers
2021-06-19 02:50:34 +02:00
2725248532
Add USB stack for easier printf() based debugging of the firmware
2021-06-18 19:43:11 +02:00
c8d8eef090
Fix key release change detection in polling mode
2021-06-18 18:28:56 +02:00
b9b02a5e73
Update some comments
2021-06-16 14:44:18 +02:00
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
e59f647d83
Allow to switch to bootloader mode via FN+PINE+F
2021-06-15 09:21:31 +02:00
d3c45f58a4
Initial commit
2021-06-14 00:10:49 +02:00
Ondrej Jirman