From 4d4dd5fe26e40418c9ca04dc31e661be9d22f7d7 Mon Sep 17 00:00:00 2001
From: Jeremy Tan <jeremy@jx.tan.fake>
Date: Wed, 25 Sep 2013 15:56:02 +0800
Subject: [PATCH] Semi fix for pwm

---
 server/pin_test.c | 13 ++++++++-----
 server/run.sh     | 13 +++++++++----
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/server/pin_test.c b/server/pin_test.c
index cd8c307..3ccf458 100644
--- a/server/pin_test.c
+++ b/server/pin_test.c
@@ -12,12 +12,12 @@
  */
 void Pin_Init()
 {
-	for (int i = 0; i < GPIO_NUM_PINS; ++i)
+/*	for (int i = 0; i < GPIO_NUM_PINS; ++i)
 		GPIO_Export(i);
 
 	for (int i = 0; i < ADC_NUM_PINS; ++i)
 		ADC_Export();
-
+*/
 	for (int i = 0; i < PWM_NUM_PINS; ++i)
 		PWM_Export(i);
 }
@@ -57,8 +57,8 @@ void Pin_Handler(FCGIContext *context, char * params)
 	FCGIValue values[] = {
 		{"type", &type, FCGI_REQUIRED(FCGI_STRING_T)},
 		{"num", &num, FCGI_REQUIRED(FCGI_INT_T)}, 
-		{"set", &set, FCGI_INT_T},
-		{"pol", &pol, FCGI_INT_T},
+		{"set", &set, FCGI_BOOL_T},
+		{"pol", &pol, FCGI_BOOL_T},
 		{"freq", &freq, FCGI_DOUBLE_T},
 		{"duty", &duty, FCGI_DOUBLE_T}
 	};
@@ -68,6 +68,7 @@ void Pin_Handler(FCGIContext *context, char * params)
 		TYPE,
 		NUM,
 		SET,
+		POL,
 		FREQ,
 		DUTY
 	} SensorParams;
@@ -131,10 +132,12 @@ void Pin_Handler(FCGIContext *context, char * params)
 		if (set)
 		{
 			Log(LOGDEBUG, "Setting PWM%d", num);
+			duty = duty < 0 ? 0 : duty > 1 ? 1 : duty;
 			long period_ns = (long)(1e9 / freq);
 			long duty_ns = (long)(duty * period_ns);
 			PWM_Set(num, pol, period_ns, duty_ns);
-			FCGI_PrintRaw("PWM%d set to period_ns = %lu (%f Hz), duty_ns = %lu (%d), polarity = %d", num, period_ns, freq, duty_ns, duty*100, pol);
+			FCGI_PrintRaw("PWM%d set to period_ns = %lu (%f Hz), duty_ns = %lu (%f), polarity = %d", 
+				num, period_ns, freq, duty_ns, duty*100, (int)pol);
 		}
 		else
 		{
diff --git a/server/run.sh b/server/run.sh
index d9cb343..18af55b 100755
--- a/server/run.sh
+++ b/server/run.sh
@@ -18,13 +18,18 @@ fi
 
 # Identify cape-manager slots
 slot=$(echo /sys/devices/bone_capemgr.*/slots | awk '{print $1}')
+pwm=/sys/class/pwm/
 
 # Load PWM module
-modprobe pwm_test
+#modprobe pwm_test
 (echo am33xx_pwm > $slot) 1>&2 >> /dev/null
-for port in P9_21 P9_22 P9_14 P9_16 P9_29 P9_31 P9_42 P8_13 P8_19 P8_34 P8_36 P8_45 P8_46; do
-	echo bone_pwm_$port > $slot
-done
+#for port in P9_21 P9_22 P9_14 P9_16 P9_29 P9_31 P9_42 P8_13 P8_19 P8_34 P8_36 P8_45 P8_46; do
+#	echo bone_pwm_$port > $slot
+#done
+echo 0 > $pwm/export
+echo 1 > $pwm/export
+echo bone_pwm_P9_21 > $slot
+echo bone_pwm_P9_22 > $slot
 
 # Load ADCs
 (echo cape-bone-iio > $slot) 1>&2 >> /dev/null
-- 
2.20.1