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[matches/MCTX3420.git] / server / bbb_pin_defines.h

diff --git a/server/bbb_pin_defines.h b/server/bbb_pin_defines.h
index 661f969..7ccda87 100644 (file)
--- a/server/bbb_pin_defines.h
+++ b/server/bbb_pin_defines.h
@@ -6,8 +6,10 @@
 #ifndef _BBB_PIN_DEFINES_H
 #define _BBB_PIN_DEFINES_H
 
-/** GPIO0 defines **/
+/** The number of expansion pins on the BBB **/
+#define BBB_PIN_COUNT 92
 
+/** GPIO0 defines **/
 #define GPIO0_1 1
 #define GPIO0_2 2 // Used for PWM
 #define GPIO0_3 3 // Used for PWM
@@ -111,12 +113,18 @@
 #define GPIO2_31 95
 #define GPIO2_32 96
 
-/** Number of useable GPIO pins **/
-#define GPIO_NUM_PINS 50
-
 /** Export path **/
 #define GPIO_DEVICE_PATH "/sys/class/gpio"
 
+/** Number of useable GPIO pins **/
+#define GPIO_NUM_PINS 43
+/** The max usable GPIO number **/
+#define GPIO_MAX_NUMBER 115
+
+/* Luts */
+extern const unsigned char g_pin_gpio_to_index[GPIO_MAX_NUMBER+1];
+extern const unsigned char g_pin_index_to_gpio[GPIO_NUM_PINS];
+
 #define ADC_BITS 12
 #define ADC_DIGITS 5
 #define ADC0 0
@@ -127,28 +135,34 @@
 #define ADC5 5
 #define ADC6 6
 #define ADC7 7
+/** The maximum voltage input to the ADC **/
+#define ADC_VOLTAGE_MAX 1800
+/** The maximum raw value from the ADC **/
+#define ADC_RAW_MAX (2 << ADC_BITS)
+/** Converts the raw ADC value to a voltage in millivolts **/
+#define ADC_TO_MVOLTS(x) ((double)((x)/2 << ADC_BITS) * (double)ADC_VOLTAGE_MAX)
 
 /** Number of ADC pins **/
 #define ADC_NUM_PINS 8
-
-/** Path to export ADCs with**/
-#define ADC_EXPORT_PATH "/sys/devices/bone_capemgr.9/slots"
-/** Path at which ADCs appear **/
-#define ADC_DEVICE_PATH "/sys/devices/ocp.3/helper.16"
-
-/** PWM defines **/
-#define EHRPWM0A 0
-#define EHRPWM0B 1
-// No other PWM pins work!
+/** The path to the ADCs on the BBB **/
+#define ADC_DEVICE_PATH "/sys/bus/iio/devices/iio:device0/"
+
+/** PWM names to sysfs numbers **/
+#define EHRPWM0A 0 //P9_22
+#define EHRPWM0B 1 //P9_21 - period paired with EHRPWM0A
+#define EHRPWM1A 3 //P9_14
+#define EHRPWM1B 4 //P9_16 - period paired with EHRPWM1A
+#define ECAP0    2 //P9_42
+#define ECAP2   7 //P9_28
+#define EHRPWM2A 5 //P8_19
+#define EHRPWM2B 6 //P8_13 - period paired with EHRPWM2A
 
 /** Number of PWM pins **/
-#define PWM_NUM_PINS 2
+#define PWM_NUM_PINS 8
 
 /** Path to PWM sysfs **/
 #define PWM_DEVICE_PATH "/sys/class/pwm"
 
-
-
 #endif //_BBB_PIN_DEFINES_H