driver/rtc_io: improve header comments
Fix descriptions of return values, fix typos, use upper case for abbreviations.
This commit is contained in:
Ivan Grokhotkov
parent
d246836cfc
commit
71daf49e39
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@ -27,136 +27,142 @@ extern "C" {
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* @brief Pullup/pulldown information for a single GPIO pad
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*/
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typedef struct {
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uint32_t reg; /*!< Register of Rtc Pad */
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uint32_t mux; /*!< Mux seletct the Rtc pad is Digital Pad or Rtc pad */
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uint32_t func; /*!< Select Rtc Pad Func */
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uint32_t ie; /*!< Input Enable */
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uint32_t pullup; /*!< Pullup Enable */
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uint32_t pulldown; /*!< PullDown Enable */
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int rtc_num; /*!< The Rtc number */
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uint32_t reg; /*!< Register of RTC pad, or 0 if not an RTC GPIO */
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uint32_t mux; /*!< Bit mask for selecting digital pad or RTC pad */
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uint32_t func; /*!< Mask of RTC pad function */
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uint32_t ie; /*!< Mask of input enable */
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uint32_t pullup; /*!< Mask of pullup enable */
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uint32_t pulldown; /*!< Mask of pulldown enable */
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int rtc_num; /*!< RTC IO number, or -1 if not an RTC GPIO */
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} rtc_gpio_desc_t;
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typedef enum {
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RTC_GPIO_MODE_INPUT_ONLY , /*!< Pad output */
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RTC_GPIO_MODE_OUTPUT_ONLY, /*!< Pad input */
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RTC_GPIO_MODE_INPUT_OUTUT, /*!< Pad pull output + input */
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RTC_GPIO_MODE_DISABLED, /*!< Pad (output + input) disable */
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RTC_GPIO_MODE_INPUT_ONLY , /*!< Pad output */
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RTC_GPIO_MODE_OUTPUT_ONLY, /*!< Pad input */
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RTC_GPIO_MODE_INPUT_OUTUT, /*!< Pad pull output + input */
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RTC_GPIO_MODE_DISABLED, /*!< Pad (output + input) disable */
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} rtc_gpio_mode_t;
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#define RTC_GPIO_IS_VALID_GPIO(gpio_num) ((gpio_num < GPIO_PIN_COUNT && rtc_gpio_desc[gpio_num].reg != 0)) //to decide whether it is a valid GPIO number
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extern const rtc_gpio_desc_t rtc_gpio_desc[GPIO_PIN_COUNT] ;
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extern const rtc_gpio_desc_t rtc_gpio_desc[GPIO_PIN_COUNT];
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/*
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* @brief Init a gpio as rtc gpio
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/**
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* @brief Init a GPIO as RTC GPIO
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*
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* when init a pad as analog function,need to call this funciton
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* This function must be called when initializing a pad for an analog function.
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*
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* @param gpio_num gpio_num GPIO number. If you want to set the trigger type of e.g. of GPIO16, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - ESP_OK success
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* - ESP_ERR_INVALID_ARG Parameter error
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_init(gpio_num_t gpio_num);
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/**
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* @brief Init a gpio as digital gpio
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* @brief Init a GPIO as digital GPIO
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*
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* @param gpio_num gpio_num GPIO number. If you want to set the trigger type of e.g. of GPIO16, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - ESP_OK success
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* - ESP_ERR_INVALID_ARG Parameter error
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_deinit(gpio_num_t gpio_num);
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/**
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* @brief Get the rtc io input level
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* @brief Get the RTC IO input level
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*
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* @param gpio_num gpio_num GPIO number. If you want to set the trigger type of e.g. of GPIO16, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - 1 High level
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* - 0 Low level
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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uint32_t rtc_gpio_get_level(gpio_num_t gpio_num);
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/**
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* @brief Set the rtc io output level
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* @brief Set the RTC IO output level
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*
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* @param gpio_num GPIO number. If you want to set the trigger type of e.g. of GPIO16, gpio_num should be GPIO_NUM_12 (12);
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* @param level output level;
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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* @param level output level
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*
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* @return
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* - 1 High level
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* - 0 Low level
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_set_level(gpio_num_t gpio_num, uint32_t level);
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/**
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* @brief Rtc gpio set direction
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* @brief RTC GPIO set direction
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*
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* Configure Rtc gpio direction,such as output_only,input_only,output_and_input
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* Configure RTC GPIO direction, such as output only, input only,
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* output and input.
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*
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* @param gpio_num Configure GPIO pins number, it should be GPIO number. If you want to set direction of e.g. GPIO12, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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* @param mode GPIO direction
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*
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* @return
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG GPIO error
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_set_direction(gpio_num_t gpio_num, rtc_gpio_mode_t mode);
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/**
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* @brief Rtc gpio pullup enable
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* @brief RTC GPIO pullup enable
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*
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* If the user needs to configure the GPIO pull ,Please call gpio_set_pull_mode.This function will be called in gpio_set_pull
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* This function only works for RTC IOs. In general, call gpio_pullup_en,
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* which will work both for normal GPIOs and RTC IOs.
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*
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* @param gpio_num GPIO number. If you want to set pull up or down mode for e.g. GPIO12, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - True the gpio number is Rts pad
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* - False the gpio number is Digital pad
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_pullup_en(gpio_num_t gpio_num);
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/**
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* @brief Rtc gpio pulldown enable
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* @brief RTC GPIO pulldown enable
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*
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* If the user needs to configure the GPIO pull ,Please call gpio_set_pull_mode.This function will be called in gpio_set_pull
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* This function only works for RTC IOs. In general, call gpio_pulldown_en,
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* which will work both for normal GPIOs and RTC IOs.
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*
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* @param gpio_num GPIO number. If you want to set pull up or down mode for e.g. GPIO12, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - True the gpio number is Rts pad
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* - False the gpio number is Digital pad
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_pulldown_en(gpio_num_t gpio_num);
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/**
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* @brief Rtc gpio pullup clear
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* @brief RTC GPIO pullup disable
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*
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* If the user needs to configure the GPIO pull ,Please call gpio_set_pull_mode.This function will be called in gpio_set_pull
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* This function only works for RTC IOs. In general, call gpio_pullup_dis,
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* which will work both for normal GPIOs and RTC IOs.
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*
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* @param gpio_num GPIO number. If you want to set pull up or down mode for e.g. GPIO12, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - True the gpio number is Rts pad
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* - False the gpio number is Digital pad
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_pullup_dis(gpio_num_t gpio_num);
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/**
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* @brief Rtc gpio pulldown clear
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* @brief RTC GPIO pulldown disable
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*
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* If the user needs to configure the GPIO pull ,Please call gpio_set_pull_mode.This function will be called in gpio_set_pull
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* This function only works for RTC IOs. In general, call gpio_pulldown_dis,
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* which will work both for normal GPIOs and RTC IOs.
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*
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* @param gpio_num GPIO number. If you want to set pull up or down mode for e.g. GPIO12, gpio_num should be GPIO_NUM_12 (12);
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* @param gpio_num GPIO number (e.g. GPIO_NUM_12)
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*
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* @return
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* - True the gpio number is Rts pad
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* - False the gpio number is Digital pad
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG GPIO is not an RTC IO
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*/
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esp_err_t rtc_gpio_pulldown_dis(gpio_num_t gpio_num);
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