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bugfix(touch): add workaround for touch pad DAC hardware source mismatch on tp8 and tp9.

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This commit is contained in:
Wangjialin 2017-09-19 19:40:49 +08:00
parent e32c8be6bf
commit 449f9e10a3
2 changed files with 19 additions and 4 deletions
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4
components/driver/include/driver/touch_pad.h
View File

@ -31,8 +31,8 @@ typedef enum {
TOUCH_PAD_NUM5, /*!< Touch pad channel 5 is GPIO12*/
TOUCH_PAD_NUM6, /*!< Touch pad channel 6 is GPIO14*/
TOUCH_PAD_NUM7, /*!< Touch pad channel 7 is GPIO27*/
TOUCH_PAD_NUM8, /*!< Touch pad channel 8 is GPIO32*/
TOUCH_PAD_NUM9, /*!< Touch pad channel 9 is GPIO33*/
TOUCH_PAD_NUM8, /*!< Touch pad channel 8 is GPIO33*/
TOUCH_PAD_NUM9, /*!< Touch pad channel 9 is GPIO32*/
TOUCH_PAD_MAX,
} touch_pad_t;

19
components/driver/rtc_module.c
View File

@ -510,8 +510,16 @@ esp_err_t touch_pad_set_cnt_mode(touch_pad_t touch_num, touch_cnt_slope_t slope,
portENTER_CRITICAL(&rtc_spinlock);
//set tie opt value, high or low level seem no difference for counter
RTCIO.touch_pad[touch_num].tie_opt = opt;
//workaround for touch pad DAC mismatch on tp8 and tp9
touch_pad_t touch_pad_wrap = touch_num;
if (touch_num == TOUCH_PAD_NUM9) {
touch_pad_wrap = TOUCH_PAD_NUM8;
} else if (touch_num == TOUCH_PAD_NUM8) {
touch_pad_wrap = TOUCH_PAD_NUM9;
}
//touch sensor set slope for charging and discharging.
RTCIO.touch_pad[touch_num].dac = slope;
RTCIO.touch_pad[touch_pad_wrap].dac = slope;
portEXIT_CRITICAL(&rtc_spinlock);
return ESP_OK;
}
@ -521,7 +529,14 @@ esp_err_t touch_pad_get_cnt_mode(touch_pad_t touch_num, touch_cnt_slope_t *slope
RTC_MODULE_CHECK((touch_num < TOUCH_PAD_MAX), "touch IO error", ESP_ERR_INVALID_ARG);
portENTER_CRITICAL(&rtc_spinlock);
if (slope) {
*slope = RTCIO.touch_pad[touch_num].dac;
//workaround for touch pad DAC mismatch on tp8 and tp9
touch_pad_t touch_pad_wrap = touch_num;
if (touch_num == TOUCH_PAD_NUM9) {
touch_pad_wrap = TOUCH_PAD_NUM8;
} else if (touch_num == TOUCH_PAD_NUM8) {
touch_pad_wrap = TOUCH_PAD_NUM9;
}
*slope = RTCIO.touch_pad[touch_pad_wrap].dac;
}
if (opt) {
*opt = RTCIO.touch_pad[touch_num].tie_opt;