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authorMichael Hope <michael.hope@linaro.org>2010-09-29 20:45:57 +1300
committerMichael Hope <michael.hope@linaro.org>2010-09-29 20:45:57 +1300
commit6fcd4cd306dbecf56f5b0b506a3c23762d1219fa (patch)
tree467125eca5a2e6706001cad8e09bc475e58a12d9 /wirish/wirish_digital.c
parent368e4fc1662c2594b2a0908900713a2555a3ed8e (diff)
parentadde11b099ff5dad176e410279d21feac39d2c7e (diff)
downloadlibrambutan-6fcd4cd306dbecf56f5b0b506a3c23762d1219fa.tar.gz
librambutan-6fcd4cd306dbecf56f5b0b506a3c23762d1219fa.zip
Merge remote branch 'upstream/master'
Diffstat (limited to 'wirish/wirish_digital.c')
-rw-r--r--wirish/wirish_digital.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/wirish/wirish_digital.c b/wirish/wirish_digital.c
index c93c786..f4868da 100644
--- a/wirish/wirish_digital.c
+++ b/wirish/wirish_digital.c
@@ -1,4 +1,4 @@
-/* *****************************************************************************
+/******************************************************************************
* The MIT License
*
* Copyright (c) 2010 Perry Hung.
@@ -20,10 +20,10 @@
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
- * ****************************************************************************/
+ *****************************************************************************/
/**
- * @brief
+ * @brief Arduino-compatible digital I/O implementation.
*/
#include "wirish.h"
@@ -32,8 +32,9 @@
void pinMode(uint8 pin, WiringPinMode mode) {
uint8 outputMode;
- if (pin >= NR_GPIO_PINS)
+ if (pin >= NR_GPIO_PINS) {
return;
+ }
switch(mode) {
case OUTPUT:
@@ -58,6 +59,9 @@ void pinMode(uint8 pin, WiringPinMode mode) {
case PWM:
outputMode = GPIO_MODE_AF_OUTPUT_PP;
break;
+ case PWM_OPEN_DRAIN:
+ outputMode = GPIO_MODE_AF_OUTPUT_OD;
+ break;
default:
ASSERT(0);
return;
@@ -68,14 +72,17 @@ void pinMode(uint8 pin, WiringPinMode mode) {
uint32 digitalRead(uint8 pin) {
- if (pin >= NR_GPIO_PINS)
+ if (pin >= NR_GPIO_PINS) {
return 0;
+ }
+
return gpio_read_bit(PIN_MAP[pin].port, PIN_MAP[pin].pin);
}
void digitalWrite(uint8 pin, uint8 val) {
- if (pin >= NR_GPIO_PINS)
+ if (pin >= NR_GPIO_PINS) {
return;
+ }
gpio_write_bit(PIN_MAP[pin].port, PIN_MAP[pin].pin, val);
}