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author | Drashna Jael're <drashna@live.com> | 2021-10-11 20:36:47 -0700 |
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committer | Drashna Jael're <drashna@live.com> | 2021-10-11 20:36:47 -0700 |
commit | b34675555cbd9a71a797a7ebc2148cbf2e8f0efc (patch) | |
tree | 2d701310ccd3fc2c603d63536ab4a3c1d9b9381b /platforms/avr/drivers/i2c_slave.h | |
parent | bcddde8738dbba48c548f1e3f12a10bbf60a65d8 (diff) | |
parent | d9e077468ab3446cbd7306a453a73dad2c1403e8 (diff) |
Merge commit 'd9e077468ab3446cbd7306a453a73dad2c1403e8' into firmware_21
Diffstat (limited to 'platforms/avr/drivers/i2c_slave.h')
-rw-r--r-- | platforms/avr/drivers/i2c_slave.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/platforms/avr/drivers/i2c_slave.h b/platforms/avr/drivers/i2c_slave.h new file mode 100644 index 0000000000..a8647c9da3 --- /dev/null +++ b/platforms/avr/drivers/i2c_slave.h @@ -0,0 +1,41 @@ +/* Copyright (C) 2019 Elia Ritterbusch + + + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ +/* Library made by: g4lvanix + * GitHub repository: https://github.com/g4lvanix/I2C-slave-lib + + Info: Inititate the library by giving the required address. + Read or write to the necessary buffer according to the opperation. + */ + +#pragma once + +#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]; + +void i2c_slave_init(uint8_t address); +void i2c_slave_stop(void); |