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feature(gpio): add APIs to set and get pad drive capability. RTC pads use RTC registers to contol drive capability.

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Wangjialin
2017-07-17 15:38:19 +08:00
parent aef5e90cce
commit c30149e4bd
4 changed files with 145 additions and 40 deletions
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25
components/driver/include/driver/rtc_io.h
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@@ -40,6 +40,8 @@ typedef struct {
uint32_t slpie; /*!< Mask of input enable in sleep mode */
uint32_t hold; /*!< Mask of hold enable */
uint32_t hold_force;/*!< Mask of hold_force bit for RTC IO in RTC_CNTL_HOLD_FORCE_REG */
uint32_t drv_v; /*!< Mask of drive capability */
uint32_t drv_s; /*!< Offset of drive capability */
int rtc_num; /*!< RTC IO number, or -1 if not an RTC GPIO */
} rtc_gpio_desc_t;
@@ -232,6 +234,29 @@ esp_err_t rtc_gpio_hold_dis(gpio_num_t gpio_num);
*/
void rtc_gpio_force_hold_dis_all();
/**
* @brief Set RTC GPIO pad drive capability
*
* @param gpio_num GPIO number, only support output GPIOs
* @param strength Drive capability of the pad
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t rtc_gpio_set_drive_capability(gpio_num_t gpio_num, gpio_drive_cap_t strength);
/**
* @brief Get RTC GPIO pad drive capability
*
* @param gpio_num GPIO number, only support output GPIOs
* @param strength Pointer to accept drive capability of the pad
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t rtc_gpio_get_drive_capability(gpio_num_t gpio_num, gpio_drive_cap_t* strength);
#ifdef __cplusplus
}