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i2c: handle errors at i2ccmds

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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
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4
src/linux/gpio.h
View File

@@ -49,8 +49,8 @@ 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
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/linux/i2c.c
View File

@@ -13,6 +13,7 @@
#include "command.h" // shutdown
#include "internal.h" // report_errno
#include "sched.h" // sched_shutdown
#include "i2ccmds.h" // I2C_BUS_SUCCESS
DECL_ENUMERATION_RANGE("i2c_bus", "i2c.0", 0, 15);
@@ -84,7 +85,7 @@ i2c_setup(uint32_t bus, uint32_t rate, uint8_t addr)
return (struct i2c_config){.fd=fd, .addr=addr};
}
void
int
i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *data)
{
int ret = write(config.fd, data, write_len);
@@ -93,9 +94,11 @@ i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *data)
report_errno("write value i2c", ret);
try_shutdown("Unable write i2c device");
}
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 *data)
{
@@ -124,4 +127,6 @@ i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg
if(ret < 0) {
try_shutdown("Unable to read i2c device");
}
return I2C_BUS_SUCCESS;
}