summaryrefslogtreecommitdiff
path: root/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC408X/port_api.c
diff options
context:
space:
mode:
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC408X/port_api.c')
-rw-r--r--tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC408X/port_api.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC408X/port_api.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC408X/port_api.c
new file mode 100644
index 0000000000..8fe23e6dd0
--- /dev/null
+++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC408X/port_api.c
@@ -0,0 +1,71 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#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));
+}
+
+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));
+
+ port_reg->MASK = ~mask;
+
+ obj->reg_out = &port_reg->PIN;
+ obj->reg_in = &port_reg->PIN;
+ obj->reg_dir = &port_reg->DIR;
+
+ uint32_t i;
+ // The function is set per pin: reuse gpio logic
+ for (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) {
+ uint32_t i;
+ // The mode is set per pin: reuse pinmap logic
+ for (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 : *obj->reg_dir &= ~obj->mask; break;
+ case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
+ }
+}
+
+void port_write(port_t *obj, int value) {
+ *obj->reg_out = (*obj->reg_in & ~obj->mask) | (value & obj->mask);
+}
+
+int port_read(port_t *obj) {
+ return (*obj->reg_in & obj->mask);
+}