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fix(touch_pad): modify touch pad read function and touch_pad_deinit

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The touch pad read function taks too much time within spin lock waiting for the "done bit". (about 7.6ms as we tested)
So we try to use a mutex on the touch read function and any other functions might change the "done bit".
This commit is contained in:
Chu Shu Chen
2017-03-02 16:13:30 +08:00
parent 47d3759474
commit 194d4e9ffd
2 changed files with 47 additions and 8 deletions
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17
components/driver/include/driver/touch_pad.h
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@@ -43,10 +43,21 @@ typedef intr_handle_t touch_isr_handle_t;
*
*This function int touch pad module ,enable touch module
*
* @return None
* @return
* - ESP_OK Success
* - ESP_FAIL Touch pad init error
*
*/
void touch_pad_init();
esp_err_t touch_pad_init();
/**
* @brief Uninstall TouchPad driver.
*
* @return
* - ESP_OK Success
* - ESP_FAIL Touch pad deinit error
*/
esp_err_t touch_pad_deinit();
/**
* @brief Configure touch pad interrupt threshold.
@@ -60,6 +71,7 @@ void touch_pad_init();
*
* @return - ESP_OK Success
* - ESP_ERR_INVALID_ARG Touch pad error
* - ESP_FAIL Touch pad not initialized
*
*/
esp_err_t touch_pad_config(touch_pad_t touch_num, uint16_t threshold);
@@ -76,6 +88,7 @@ esp_err_t touch_pad_config(touch_pad_t touch_num, uint16_t threshold);
*
* @return - ESP_OK Success
* - ESP_ERR_INVALID_ARG Touch pad error
* - ESP_FAIL Touch pad not initialized
*
*/
esp_err_t touch_pad_read(touch_pad_t touch_num, uint16_t * touch_value);