refactor: deduplicate i2c parameters

[tdb3]

DS4432U, EMC2101, and INA2101 all contain the same macros for I2C bus usage.
This PR deduplicates code by pulling these i2c macros into a common header.

#define I2C_MASTER_SCL_IO 48        /*!< GPIO number used for I2C master clock */
#define I2C_MASTER_SDA_IO 47        /*!< GPIO number used for I2C master data  */
#define I2C_MASTER_NUM 0            /*!< I2C master i2c port number, the number of i2c peripheral interfaces available will depend on the chip */
#define I2C_MASTER_FREQ_HZ 400000   /*!< I2C master clock frequency */
#define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
#define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
#define I2C_MASTER_TIMEOUT_MS 1000

Also, since DS4432U.c was being touched, opportunistically added missing include for DS4432U.h.

[Georges760]

can you also please remove i2c_master_init(void) from DS4432.c and put it in the main file ?

[Georges760]

i planned to do such a PR myself, so I will help yours instead

[tdb3]

can you also please remove i2c_master_init(void) from DS4432.c and put it in the main file ?

Thank you very much for the review @Georges760!

Good idea. Does something like the following sound good to you?

• move i2c_master_init() as well as i2c_driver_delete(), register_read(), and register_write_byte() to a common C file (e.g. i2c_common.c)
• rename i2c_params.h to something like i2c_common.h

If so, I will make those changes (and any needed updates to CMakeLists

[Georges760]

@tdb3 are you able to do the additional commit ? I need it to move forward, sorry to push.

If you are busy, I can merge as it and do the additional change myself.

Tell me.

[tdb3]

@tdb3 are you able to do the additional commit ? I need it to move forward, sorry to push.

If you are busy, I can merge as it and do the additional change myself.

Tell me.

Thanks for pinging. Sorry, I'm a bit busy right now on another project. I saw a few more opportunities for deduplicating i2c functions beyond i2c_master_init() , i2c_driver_delete(), register_read(), and register_write_byte(). Don't let me hold you up. I could convert this PR to draft if you'd like or you could merge as-is and one of us could open a follow up PR later.