Board implementations and fixes (#247)
- Implemented Elecrow Crowpanel Basic 5.0" - Implemented Elecrow Crowpanel Advance 5.0" - Implemented CYD 2432S032C - Fix for CYD 4848S040C rendering drift (lower transfer speed) - Fix for SD card locking mechanism for various boards
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Ken Van Hoeylandt
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#ifndef TCA9534_IDF_TCA9534_H
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#define TCA9534_IDF_TCA9534_H
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#include <driver/i2c.h>
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#include <driver/gpio.h>
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#define TCA9534_ERROR -1
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief TCA9534 IO Pins mapping
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*/
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typedef enum {
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TCA9534_IO0,
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TCA9534_IO1,
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TCA9534_IO2,
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TCA9534_IO3,
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TCA9534_IO4,
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TCA9534_IO5,
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TCA9534_IO6,
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TCA9534_IO7
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} TCA9534_PINS;
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/**
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* @brief TCA9534 Port direction parameters
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*/
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typedef enum {
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TCA9534_OUTPUT,
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TCA9534_INPUT
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} TCA9534_PORT_DIRECTION;
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/**
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* @brief TCA9534 initialization parameters
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*/
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typedef struct {
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uint8_t I2C_ADDR;
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int i2c_master_port;
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//Only when mode is set to interrupt, otherwise it won't be used..
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gpio_num_t interrupt_pin;
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TaskHandle_t* interrupt_task;
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} TCA9534_IO_EXP;
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/**
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* @brief Setup interrupts using the builtin IO_EXP_INT pin of the tca9534 and interrupt handler+task
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* @param io_exp which contains the gpio pin where IO_EXP_INT is connected(interrupt_pin)
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* And optionally contains the task to run when interrupt triggered (interrupt_task) if not defined the
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* default handler will be used.
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*/
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void setup_tca9534_interrupt_handler(TCA9534_IO_EXP* io_exp);
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/**
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* @brief Get the current input state of the specified input pin (1 or 0)
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*
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* @param io_exp The io expander instance to read from or write to
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* @param io_pin The io expander pin to read the state from
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*
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* @return
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* - 0 Success! Pin is Low
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* - 1 Success! Pin is High
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* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
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*/
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int16_t get_io_pin_input_status(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin);
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/**
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* @brief Get the current input state of all the io expander pins
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*
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* @param io_exp The io expander instance to read from or write to
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*
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* @return
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* - 0x00 - 0xFF Success! Dump of input register, 1 bit is equal to 1 of the physical pins (Lower 8 bits of 16 bits result)
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* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
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*/
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int16_t get_tca9534_all_io_pin_input_status(TCA9534_IO_EXP* io_exp);
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/**
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* @brief Get the current direction of all the io expander pins
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*
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* @param io_exp The io expander instance to read from or write to
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*
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* @return
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* - 0x00 - 0xFF Success! Dump of configuration register, 1 bit is equal to 1 of the physical pins (Lower 8 bits of 16 bits result)
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* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
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*/
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int16_t get_all_io_pin_direction(TCA9534_IO_EXP* io_exp);
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/**
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* @brief Get the current polarity inversion state of all the io expander pins
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*
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* @param io_exp The io expander instance to read from or write to
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*
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* @return
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* - 0x00 - 0xFF Success! Dump of configuration register, 1 bit is equal to 1 of the physical pins (Lower 8 bits of 16 bits result)
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* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
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*/
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int16_t get_all_io_polarity_inversion(TCA9534_IO_EXP* io_exp);
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/**
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* @brief Get the current direction of the specified io expander pin
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*
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* @param io_exp The io expander instance to read from or write to
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* @param io_pin The io expander pin to read polarity inversion from
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*
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* @return
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* - 0 Success! Pin is Not inverted
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* - 1 Success! Pin is Inverted
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* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
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*/
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int16_t get_io_pin_polarity_inversion(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin);
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/**
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* @brief Get the current direction of the specified physical pin (0 means OUTPUT or 1 means INPUT)
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*
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* @param io_exp The io expander instance to read from or write to
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* @param io_pin The io expander pin to read the state from
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*
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* @return
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* - 0 Success! Pin is OUTPUT
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* - 1 Success! Pin is INPUT
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* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
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*/
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int16_t get_io_pin_direction(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin);
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/**
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* @brief Sets all physical pins of the io expander to a specified direction (INPUT or OUTPUT)
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*
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* @param io_exp The io expander instance to read from or write to
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* @param properties The pin direction to be set (INPUT or OUTPUT)
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*
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* @return
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* - ESP_OK Success!
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* - ESP_ERR Error!
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*/
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esp_err_t set_all_tca9534_io_pins_direction(TCA9534_IO_EXP* io_exp, TCA9534_PORT_DIRECTION properties);
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/**
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* @brief Set physical pin of the io expander to a specified direction (INPUT or OUTPUT)
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*
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* @param io_exp The io expander instance to read from or write to
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* @param io_pin The io expander physical pin to be set
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* @param properties The pin direction to be set (INPUT or OUTPUT)
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*
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* @return
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* - ESP_OK Success!
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* - ESP_ERR Error!
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*/
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esp_err_t set_tca9534_io_pin_direction(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin, TCA9534_PORT_DIRECTION properties);
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/**
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* @brief Set physical pin of the io expander to an specified output state (HIGH(1) or LOW(0))
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*
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* @param io_exp The io expander instance to read from or write to
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* @param io_pin The io expander physical pin to be set
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* @param state The pin state to be set (1 or 0)
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*
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* @return
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* - ESP_OK Success!
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* - ESP_ERR Error!
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*
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* @note Pin output state can be inverted with the inversion register
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*/
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esp_err_t set_tca9534_io_pin_output_state(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin, uint8_t state);
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#ifdef __cplusplus
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}
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#endif
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#endif //TCA9534_IDF_TCA9534_H
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