GPIO PinMode Fixed (ARMmbed#30)

* GPIO port

* fixed hw_types

* delete TODO

* remove ARCM_BASE

* fixed naming issue

* possible fixed for LED3

* working GPIO

* GPIO is working

* add function for gpio_is_connected

* fixed PinMode bug

Author: dragoniteArm

targets/TARGET_TI/TARGET_CC32XX/TARGET_CC3220SF/gpio_api.c

@@ -35,27 +35,16 @@ static const unsigned long g_ulPinToGPIOPinBit[64] =
 };
 
 /* Table of GPIO input types */
-const uint16_t inPinTypes [] = {
+const uint16_t PinTypes [] = {
    PIN_TYPE_STD,       /* GPIO_CFG_IN_NOPULL */
-   PIN_TYPE_STD_PD,     /* GPIO_CFG_IN_PD */
-   PIN_TYPE_STD_PU    /* GPIO_CFG_IN_PU */
-   
+   PIN_TYPE_STD_PU,     /* GPIO_CFG_IN_PU */
+   PIN_TYPE_STD_PD,    /* GPIO_CFG_IN_PD */
+   PIN_TYPE_OD,        /* GPIO_CFG_OUT_OD_NOPULL */
+   PIN_TYPE_OD_PU,     /* GPIO_CFG_OUT_OD_PU */
+   PIN_TYPE_OD_PD,      /* GPIO_CFG_OUT_OD_PD */
+   PIN_TYPE_ANALOG
 };
 
-/* Table of GPIO output types */
-const uint16_t outPinTypes [] = {
-   PIN_TYPE_STD,       /* GPIO_CFG_OUT_STD */
-   PIN_TYPE_OD_PD,     /* GPIO_CFG_OUT_OD_PD */
-   PIN_TYPE_OD_PU,      /* GPIO_CFG_OUT_OD_PU */
-   PIN_TYPE_OD        /* GPIO_CFG_OUT_OD_NOPULL */
-};
-
-/* Table of GPIO drive strengths */
-const uint16_t outPinStrengths [] = {
-   PIN_STRENGTH_2MA,    /* GPIO_CFG_OUT_STR_LOW */
-   PIN_STRENGTH_4MA,    /* GPIO_CFG_OUT_STR_MED */
-   PIN_STRENGTH_6MA     /* GPIO_CFG_OUT_STR_HIGH */
-};
 
 static const PinMap PinMap_GPIO[] = {
    {PIN_50, CC3220SF_GPIOA0_BASE, 0}, //GPIO_00 (PM/Dig Mux)
@@ -149,16 +138,8 @@ void gpio_mode(gpio_t *obj, PinMode mode)
 {
     obj->mode = mode;
 
-    
-    if(obj->dir == PIN_INPUT){ //setting the correct input pin mode from STD, PULL_UP, or  PULL_DOWN
-        PinModeSet(obj->pin, inPinTypes[mode]);
-        pin_mode(obj->pin, mode); 
-    }
-    else if(obj->dir == PIN_OUTPUT){ //setting the correct output pin mode from STD, open-drain PULL_UP, or  open drain PULL_DOWN.
-        PinModeSet(obj->pin, outPinTypes[mode]);
-        pin_mode(obj->pin, mode);
-    } 
-
+    PinModeSet(obj->pin, PinTypes[mode]);
+    pin_mode(obj->pin, mode);  
 }
 
 void gpio_dir(gpio_t *obj, PinDirection direction)