i2c.h File Reference
PIO I2C program interface. More...
Detailed Description
PIO I2C program interface.
Definition in file i2c.h.
Include dependency graph for i2c.h:Go to the source code of this file.
Data Structures | |
| struct | pio_program_i2c |
| PIO I2C program type. More... | |
| struct | pio_i2c_bus |
| PIO I2C emulated bus type. More... | |
Typedefs | |
| typedef i2c_t | pio_i2c_t |
| PIO I2C descriptor type compatible with i2c_t. | |
| typedef struct pio_program_i2c | pio_program_i2c_t |
| PIO I2C program type. | |
| typedef struct pio_i2c_bus | pio_i2c_bus_t |
| PIO I2C emulated bus type. | |
Functions | |
| pio_i2c_bus_t * | pio_i2c_get (pio_i2c_t id) |
| Get access to a PIO I2C instance configured with PIO_I2C_CONFIG. More... | |
| unsigned | pio_i2c_numof (void) |
| Query the number of PIO I2C instances configured with PIO_I2C_CONFIG. More... | |
| const pio_program_i2c_t * | pio_i2c_get_program (pio_t pio) |
| Get const I2C program reference. More... | |
| int | pio_i2c_init_program (pio_t pio) |
| Create, allocate, and write a PIO I2C program. More... | |
| void | pio_i2c_deinit_program (pio_t pio) |
| Free a PIO I2C program. More... | |
| pio_sm_t | pio_i2c_sm_lock (pio_t pio, pio_i2c_bus_t *i2c) |
Acquire a PIO state machine of PIO pio to run the PIO I2C program. More... | |
| void | pio_i2c_sm_unlock (pio_i2c_bus_t *i2c) |
Release a PIO state machine of PIO pio. More... | |
| void | pio_i2c_start_programs (void) |
| Start PIO I2C programs configured with PIO_I2C_CONFIG. More... | |
| void | pio_i2c_stop_programs (void) |
| Stop PIO I2C programs configured with PIO_I2C_CONFIG. | |
| int | pio_i2c_write_program (pio_t pio, pio_program_i2c_t *pro) |
| Write a PIO I2C program to instruction memory. More... | |
| int | pio_i2c_init (pio_i2c_bus_t *bus, const pio_program_i2c_t *pro, gpio_t sda, gpio_t scl, unsigned irq) |
| Setup a state machine to run the I2C program. More... | |
| void | pio_i2c_acquire (pio_i2c_bus_t *bus) |
| Get exclusive access to the emulated I2C bus. More... | |
| void | pio_i2c_release (pio_i2c_bus_t *bus) |
| Release emulated I2C bus. More... | |
| int | pio_i2c_read_regs (pio_t pio, pio_sm_t sm, uint16_t addr, uint16_t reg, void *data, size_t len, uint8_t flags) |
| Emulate i2c_read_regs. More... | |
| static int | pio_i2c_read_reg (pio_t pio, pio_sm_t sm, uint16_t addr, uint16_t reg, void *data, uint8_t flags) |
| Emulate i2c_read_reg. More... | |
| int | pio_i2c_read_bytes (pio_t pio, pio_sm_t sm, uint16_t addr, void *data, size_t len, uint8_t flags) |
| Emulate i2c_read_bytes. More... | |
| static int | pio_i2c_read_byte (pio_t pio, pio_sm_t sm, uint16_t addr, void *data, uint8_t flags) |
| Emulate i2c_read_byte. More... | |
| int | pio_i2c_write_bytes (pio_t pio, pio_sm_t sm, uint16_t addr, const void *data, size_t len, uint8_t flags) |
| Emulate i2c_write_bytes. More... | |
| static int | pio_i2c_write_byte (pio_t pio, pio_sm_t sm, uint16_t addr, uint8_t data, uint8_t flags) |
| Emulate i2c_write_byte. More... | |
| int | pio_i2c_write_regs (pio_t pio, pio_sm_t sm, uint16_t addr, uint16_t reg, const void *data, size_t len, uint8_t flags) |
| Emulate i2c_write_regs. More... | |
| static int | pio_i2c_write_reg (pio_t pio, pio_sm_t sm, uint16_t addr, uint16_t reg, uint8_t data, uint8_t flags) |
| Emulate i2c_write_reg. More... | |
