Implemented PortIn, PortOut and PortInOut API #8

Followingt test cases have been passed:
* PortOut (#24)
* PortOut PortIn (#9)
* PortInOut (#8)

Author: toyowata

libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11XX/device.h

@@ -16,9 +16,9 @@
 #ifndef MBED_DEVICE_H
 #define MBED_DEVICE_H
 
-#define DEVICE_PORTIN           0
-#define DEVICE_PORTOUT          0
-#define DEVICE_PORTINOUT        0
+#define DEVICE_PORTIN           1
+#define DEVICE_PORTOUT          1
+#define DEVICE_PORTINOUT        1
 
 #define DEVICE_INTERRUPTIN      1
 

libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11XX/objects.h

@@ -32,7 +32,7 @@ struct gpio_irq_s {
 
 struct port_s {
     __IO uint32_t *reg_dir;
-    __IO uint32_t *reg_mpin;
+    __IO uint32_t *reg_data;
     PortName port;
     uint32_t mask;
 };

libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11XX/port_api.c

@@ -14,32 +14,35 @@
  * limitations under the License.
  */
 
-#warning TODO(@toyowata) This platform doesn't support PortIn, PortOut and PortInOut
-#if 0
-
 #include "port_api.h"
 #include "pinmap.h"
 #include "gpio_api.h"
 
-PinName port_pin(PortName port, int pin_n) {
-    return (PinName)((port << PORT_SHIFT) | pin_n);
+// LPC114 IOCON offset table [port][pin]
+
+static uint8_t iocon_offset[4][12] = {
+    {0x0c,0x10,0x1c,0x2c,0x30,0x34,0x4c,0x50,0x60,0x64,0x68,0x74}, // PORT 0
+    {0x78,0x7c,0x80,0x90,0x94,0xa0,0xa4,0xa8,0x14,0x38,0x6c,0x98}, // PORT 1
+    {0x08,0x28,0x5c,0x8c,0x40,0x44,0x00,0x20,0x24,0x54,0x58,0x70}, // PORT 2
+    {0x84,0x88,0x9c,0xac,0x3c,0x48}                                // PORT 3
+};
+
+static PinName port_pin(PortName port, int pin) {
+    return (PinName)((port << PORT_SHIFT) | (pin << PIN_SHIFT) | (uint32_t)iocon_offset[port][pin]);
 }
 
 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
     obj->port = port;
     obj->mask = mask;
 
-    LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *)(LPC_GPIO0_BASE + ((int)port * 0x20));
+    LPC_GPIO_TypeDef *port_reg = ((LPC_GPIO_TypeDef *) (LPC_GPIO0_BASE + (port * 0x10000)));
 
-    port_reg->MASK = ~mask;
-    
-    obj->reg_out = &port_reg->PIN;
-    obj->reg_in  = &port_reg->PIN;
-    obj->reg_dir  = &port_reg->DIR;
+    obj->reg_data  = &port_reg->DATA;
+    obj->reg_dir = &port_reg->DIR;
 
     uint32_t i;
     // The function is set per pin: reuse gpio logic
-    for (i=0; i<32; i++) {
+    for (i=0; i<12; i++) {
         if (obj->mask & (1<<i)) {
             gpio_set(port_pin(obj->port, i));
         }
@@ -51,7 +54,7 @@ void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
 void port_mode(port_t *obj, PinMode mode) {
     uint32_t i;
     // The mode is set per pin: reuse pinmap logic
-    for (i=0; i<32; i++) {
+    for (i=0; i<12; i++) {
         if (obj->mask & (1<<i)) {
             pin_mode(port_pin(obj->port, i), mode);
         }
@@ -66,10 +69,10 @@ void port_dir(port_t *obj, PinDirection dir) {
 }
 
 void port_write(port_t *obj, int value) {
-    *obj->reg_mpin = value;
+    *obj->reg_data = (value & obj->mask);
 }
 
 int port_read(port_t *obj) {
-    return (*obj->reg_mpin);
+    return (*obj->reg_data & obj->mask);
 }
-#endif
+

libraries/tests/mbed/portinout/main.cpp

@@ -18,6 +18,15 @@
 #define P2_2    (1 << 0)  // p2.0 -> p26
 #define PORT_2  Port2
 
+#elif defined(TARGET_LPC1114)
+#define P1_1    (1 <<  9) // p0.9
+#define P1_2    (1 <<  8) // p0.8
+#define PORT_1  Port0
+
+#define P2_1    (1 << 1) // p1.1
+#define P2_2    (1 << 0) // p1.0
+#define PORT_2  Port1
+
 #elif defined(TARGET_KL25Z)
 #define P1_1    (1 << 1) // PTA1
 #define P1_2    (1 << 2) // PTA2

libraries/tests/mbed/portout/main.cpp

@@ -5,7 +5,7 @@
 #     define LED2   (1 << 20) // P1.20
 #     define LED3   (1 << 21) // P1.21
 #     define LED4   (1 << 23) // P1.23
-# elif defined(TARGET_LPC11U24)
+# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC1114)
 #     define LED1   (1 <<  8) // P1.8
 #     define LED2   (1 <<  9) // P1.9 
 #     define LED3   (1 << 10) // P1.10

libraries/tests/mbed/portout_portin/main.cpp

@@ -18,6 +18,15 @@
 #define P2_2    (1 << 0)  // p2.0 -> p26
 #define PORT_2  Port2
 
+#elif defined(TARGET_LPC1114)
+#define P1_1    (1 <<  9) // p0.9
+#define P1_2    (1 <<  8) // p0.8
+#define PORT_1  Port0
+
+#define P2_1    (1 << 1) // p1.1
+#define P2_2    (1 << 0) // p1.0
+#define PORT_2  Port1
+
 #elif defined(TARGET_KL25Z)
 #define P1_1    (1 << 1) // PTA1
 #define P1_2    (1 << 2) // PTA2