Merge pull request #11151 from kyle-cypress/pr/gpio-inout-fix

Seppo Takalo · web-flow · commit 644f79592c19 · 2019-08-06T12:37:08.000+03:00
Fix PSoC 6 inout pins
diff --git a/targets/TARGET_Cypress/TARGET_PSOC6/cy_gpio_api.c b/targets/TARGET_Cypress/TARGET_PSOC6/cy_gpio_api.c
@@ -60,9 +60,16 @@ void gpio_mode(gpio_t *obj, PinMode mode)
     }
 }
 
-void gpio_dir(MBED_UNUSED gpio_t *obj, MBED_UNUSED PinDirection direction)
+void gpio_dir(gpio_t *obj, PinDirection direction)
 {
-    // mbed reads from input buffer instead of DR even for output pins so always leave input buffer enabled
+    if (direction == PIN_INPUT) {
+        cyhal_gpio_direction(obj->pin, CYHAL_GPIO_DIR_INPUT);
+        gpio_mode(obj, CYHAL_GPIO_DRIVE_ANALOG);
+    } else if (direction == PIN_OUTPUT) {
+        // mbed reads from input buffer instead of DR even for output pins so always leave input buffer enabled
+        cyhal_gpio_direction(obj->pin, CYHAL_GPIO_DIR_BIDIRECTIONAL);
+        gpio_mode(obj, CYHAL_GPIO_DRIVE_STRONG);
+    }
 }
 
 #ifdef __cplusplus

Original file line number	Diff line number	Diff line change
`@@ -60,9 +60,16 @@ void gpio_mode(gpio_t *obj, PinMode mode)`
`60`	`60`	`}`
`61`	`61`	`}`
`62`	`62`
`63`		`-void gpio_dir(MBED_UNUSED gpio_t *obj, MBED_UNUSED PinDirection direction)`
	`63`	`+void gpio_dir(gpio_t *obj, PinDirection direction)`
`64`	`64`	`{`
`65`		`- // mbed reads from input buffer instead of DR even for output pins so always leave input buffer enabled`
	`65`	`+ if (direction == PIN_INPUT) {`
	`66`	`+ cyhal_gpio_direction(obj->pin, CYHAL_GPIO_DIR_INPUT);`
	`67`	`+ gpio_mode(obj, CYHAL_GPIO_DRIVE_ANALOG);`
	`68`	`+ } else if (direction == PIN_OUTPUT) {`
	`69`	`+ // mbed reads from input buffer instead of DR even for output pins so always leave input buffer enabled`
	`70`	`+ cyhal_gpio_direction(obj->pin, CYHAL_GPIO_DIR_BIDIRECTIONAL);`
	`71`	`+ gpio_mode(obj, CYHAL_GPIO_DRIVE_STRONG);`
	`72`	`+ }`
`66`	`73`	`}`
`67`	`74`
`68`	`75`	`#ifdef __cplusplus`