(Almost done) pin refactoring

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

diff --git a/server/bbb_pin_defines.h b/server/bbb_pin_defines.h
index 844b406..a7aa932 100644 (file)
--- a/server/bbb_pin_defines.h
+++ b/server/bbb_pin_defines.h
@@ -6,6 +6,9 @@
 #ifndef _BBB_PIN_DEFINES_H
 #define _BBB_PIN_DEFINES_H
 
+/** The number of expansion pins on the BBB **/
+#define BBB_PIN_COUNT 92
+
 /** GPIO0 defines **/
 
 #define GPIO0_1 1
@@ -111,15 +114,15 @@
 #define GPIO2_31 95
 #define GPIO2_32 96
 
+/* Luts */
 /** Number of useable GPIO pins **/
-#define GPIO_NUM_PINS 50
+#define GPIO_NUM_PINS 44
+/** The max usable GPIO number **/
+#define GPIO_MAX_NUMBER 117
 
-/* Luts */
-#define GPIO_LUT_SIZE 93
-#define GPIO_INDEX_SIZE 128
-extern const unsigned char g_pin_to_gpio[GPIO_LUT_SIZE];
-extern const unsigned char g_gpio_to_index[GPIO_INDEX_SIZE];
-extern const unsigned char g_index_to_gpio[GPIO_NUM_PINS];
+extern const unsigned char g_pin_real_to_gpio[BBB_PIN_COUNT+1];
+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];
 
 /** Export path **/
 #define GPIO_DEVICE_PATH "/sys/class/gpio"
@@ -138,22 +141,29 @@ extern const unsigned char g_index_to_gpio[GPIO_NUM_PINS];
 /** 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"
+#define ADC_DEVICE_PATH "/sys/bus/iio/devices/iio:device0/"
 
-/** PWM defines **/
-#define EHRPWM0A 0
-#define EHRPWM0B 1
-// No other PWM pins work!
+/** 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
+
+/** Number of PWM pins which are guaranteed not to interfere with one another **/
+#define PWM_NUM_SAFE_PINS 5
 
 /** Path to PWM sysfs **/
 #define PWM_DEVICE_PATH "/sys/class/pwm"
 
+/** Maps internal pin number to safe 'pwmX' number **/
+extern const unsigned char g_pin_safe_pwm[PWM_NUM_SAFE_PINS];
 
 #endif //_BBB_PIN_DEFINES_H