PORT HAL implementation

	- using gpio hal port

Author: 0xc0170

libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_K64F/gpio_api.c

@@ -18,10 +18,9 @@
 #include "fsl_gpio_driver.h"
 
 uint32_t gpio_set(PinName pin) {
-    uint32_t instance = pin >> GPIO_PORT_SHIFT;
     uint32_t pin_num = pin & 0xFF;
 
-    port_hal_mux_control(instance, pin_num, kPortMuxAsGpio);
+    pin_function(pin, (int)kPortMuxAsGpio);
     return 1 << pin_num;
 }
 
@@ -51,25 +50,7 @@ void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) {
 }
 
 void gpio_mode(gpio_t *obj, PinMode mode) {
-    uint32_t instance = obj->pinName >> GPIO_PORT_SHIFT;
-    uint32_t pin = obj->pinName & 0xFF;
-
-    switch (mode) {
-        case PullNone:
-            port_hal_configure_pull(instance, pin, 0);
-            port_hal_pull_select(instance, pin, kPortPullDown);
-            break;
-        case PullDown:
-            port_hal_configure_pull(instance, pin, 1);
-            port_hal_pull_select(instance, pin, kPortPullDown);
-            break;
-        case PullUp:
-            port_hal_configure_pull(instance, pin, 1);
-            port_hal_pull_select(instance, pin, kPortPullUp);
-            break;
-        default:
-            break;
-    }
+    pin_mode(obj->pinName, mode);
 }
 
 void gpio_dir(gpio_t *obj, PinDirection direction) {

libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_K64F/gpio_object.h

@@ -23,7 +23,7 @@ extern "C" {
 #endif
 
 typedef struct {
-    uint32_t pinName;
+    PinName pinName;
 } gpio_t;
 
 static inline void gpio_write(gpio_t *obj, int value) {

libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_K64F/objects.h

@@ -32,9 +32,6 @@ struct gpio_irq_s {
 };
 
 struct port_s {
-    __IO uint32_t *reg_dir;
-    __IO uint32_t *reg_out;
-    __I  uint32_t *reg_in;
     PortName port;
     uint32_t mask;
 };

libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_K64F/port_api.c

@@ -18,20 +18,48 @@
 #include "gpio_api.h"
 
 PinName port_pin(PortName port, int pin_n) {
+    return (PinName)((port << GPIO_PORT_SHIFT) | pin_n);
 }
 
 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
+    obj->port = port;
+    obj->mask = mask;
+
+    // The function is set per pin: reuse gpio logic
+    for (uint32_t i = 0; i < 32; i++) {
+        if (obj->mask & (1 << i)) {
+            gpio_set(port_pin(obj->port, i));
+        }
+    }
+
+    port_dir(obj, dir);
 }
 
 void port_mode(port_t *obj, PinMode mode) {
+
+    // The mode is set per pin: reuse pinmap logic
+    for (uint32_t i = 0; i < 32; i++) {
+        if (obj->mask & (1 << i)) {
+            pin_mode(port_pin(obj->port, i), mode);
+        }
+    }
 }
 
 void port_dir(port_t *obj, PinDirection dir) {
+    switch (dir) {
+        case PIN_INPUT :
+            gpio_hal_set_port_direction((uint32_t)obj->port, kGpioDigitalInput);
+            break;
+        case PIN_OUTPUT:
+            gpio_hal_set_port_direction((uint32_t)obj->port, kGpioDigitalOutput);
+            break;
+    }
 }
 
 void port_write(port_t *obj, int value) {
+    gpio_hal_write_port_output((uint32_t)obj->port, (uint32_t)(value & obj->mask));
 }
 
 int port_read(port_t *obj) {
-    return 1;
+    return (int)(gpio_hal_read_port_input((uint32_t)obj->port) & obj->mask);
 }