diff options
author | Nick Brassel <nick@tzarc.org> | 2021-06-18 09:10:06 +1000 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-06-18 09:10:06 +1000 |
commit | 172e6a703041363decd6fc829542f33180c13beb (patch) | |
tree | a5d4afaa672ab44826865fd76b201e3899083192 /drivers/avr/i2c_slave.h | |
parent | ef92c9ee2cf4745637635ec1895399e4f013914c (diff) |
Extensible split data sync (#11930)
* Extensible split data sync capability through transactions.
- Split common transport has been split up between the transport layer
and data layer.
- Split "transactions" model used, with convergence between I2C and
serial data definitions.
- Slave matrix "generation count" is used to determine if the full slave
matrix needs to be retrieved.
- Encoders get the same "generation count" treatment.
- All other blocks of data are synchronised when a change is detected.
- All transmissions have a globally-configurable deadline before a
transmission is forced (`FORCED_SYNC_THROTTLE_MS`, default 100ms).
- Added atomicity for all core-synced data, preventing partial updates
- Added retries to AVR i2c_master's i2c_start, to minimise the number of
failed transactions when interrupts are disabled on the slave due to
atomicity checks.
- Some keyboards have had slight modifications made in order to ensure
that they still build due to firmware size restrictions.
* Fixup LED_MATRIX compile.
* Parameterise ERROR_DISCONNECT_COUNT.
Diffstat (limited to 'drivers/avr/i2c_slave.h')
-rw-r--r-- | drivers/avr/i2c_slave.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/avr/i2c_slave.h b/drivers/avr/i2c_slave.h index 1cd0625ef4..a8647c9da3 100644 --- a/drivers/avr/i2c_slave.h +++ b/drivers/avr/i2c_slave.h @@ -22,7 +22,18 @@ #pragma once -#define I2C_SLAVE_REG_COUNT 30 +#ifndef I2C_SLAVE_REG_COUNT + +# if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS) +# include "transport.h" +# define I2C_SLAVE_REG_COUNT sizeof(split_shared_memory_t) +# else // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS) +# define I2C_SLAVE_REG_COUNT 30 +# endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS) + +#endif // I2C_SLAVE_REG_COUNT + +_Static_assert(I2C_SLAVE_REG_COUNT < 256, "I2C target registers must be single byte"); extern volatile uint8_t i2c_slave_reg[I2C_SLAVE_REG_COUNT]; |