h3n3/klipper
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i2c: handle errors at i2ccmds

Browse Source 
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
This commit is contained in:
Timofey Titovets
2024-10-21 14:19:56 +02:00
committed by KevinOConnor
parent 08a85ba869
commit a4aa2a9002
20 changed files with 123 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/atsamd/gpio.h
View File

@@ -51,8 +51,8 @@ struct i2c_config {
};
struct i2c_config i2c_setup(uint32_t bus, uint32_t rate, uint8_t addr);
void i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write);
void i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg
, uint8_t read_len, uint8_t *read);
int i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write);
int i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg
, uint8_t read_len, uint8_t *read);
#endif // gpio.h

9
src/atsamd/i2c.c
View File

@@ -9,6 +9,7 @@
#include "command.h" // shutdown
#include "gpio.h" // i2c_setup
#include "sched.h" // sched_shutdown
#include "i2ccmds.h" // I2C_BUS_SUCCESS
#define TIME_RISE 125ULL // 125 nanoseconds
#define I2C_FREQ 100000
@@ -86,7 +87,7 @@ i2c_stop(SercomI2cm *si)
si->CTRLB.reg = SERCOM_I2CM_CTRLB_CMD(3);
}
void
int
i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write)
{
SercomI2cm *si = (SercomI2cm *)config.si;
@@ -94,9 +95,11 @@ i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write)
while (write_len--)
i2c_send_byte(si, *write++);
i2c_stop(si);
return I2C_BUS_SUCCESS;
}
void
int
i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg
, uint8_t read_len, uint8_t *read)
{
@@ -143,4 +146,6 @@ i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg
// read received data byte
*read++ = si->DATA.reg;
}
return I2C_BUS_SUCCESS;
}