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authorJoel Challis <git@zvecr.com>2021-08-17 23:43:09 +0100
committerGitHub <noreply@github.com>2021-08-17 23:43:09 +0100
commit1bb7af4d446174b7181c9bb22dbd14c93642ea10 (patch)
tree894eceeb29cc2c00f6b0f08a4ca177da7f172424 /platforms/avr/drivers/i2c_master.h
parent483691dd73e5260fac958c524e0a12e705db43f6 (diff)
Relocate platform specific drivers (#13894)
* Relocate platform specific drivers * Move stm eeprom * Tidy up slightly
Diffstat (limited to 'platforms/avr/drivers/i2c_master.h')
-rw-r--r--platforms/avr/drivers/i2c_master.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/platforms/avr/drivers/i2c_master.h b/platforms/avr/drivers/i2c_master.h
new file mode 100644
index 0000000000..e5af73364b
--- /dev/null
+++ b/platforms/avr/drivers/i2c_master.h
@@ -0,0 +1,43 @@
+/* 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-master-lib
+ */
+
+#pragma once
+
+#define I2C_READ 0x01
+#define I2C_WRITE 0x00
+
+typedef int16_t i2c_status_t;
+
+#define I2C_STATUS_SUCCESS (0)
+#define I2C_STATUS_ERROR (-1)
+#define I2C_STATUS_TIMEOUT (-2)
+
+#define I2C_TIMEOUT_IMMEDIATE (0)
+#define I2C_TIMEOUT_INFINITE (0xFFFF)
+
+void i2c_init(void);
+i2c_status_t i2c_start(uint8_t address, uint16_t timeout);
+i2c_status_t i2c_write(uint8_t data, uint16_t timeout);
+int16_t i2c_read_ack(uint16_t timeout);
+int16_t i2c_read_nack(uint16_t timeout);
+i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
+void i2c_stop(void);