#include "bbb_pin_defines.h"
+/* Luts and stuff. Yay magic numbers **/
+
/**
- * A lookup table from header number to GPIO pin number.
- * e.g P8_13 is g_gpio_lut[0*46+13] = g_gpio_lut[13]
- * e.g P9_13 is g_gpio_lut[1*46+13] = g_gpio_lut[59]
+ * A lookup table from the actual pin number to GPIO number.
+ * e.g P8_13 is g_pin_real_to_gpio[0*46+13] = g_pin_real_to_gpio[13]
+ * e.g P9_13 is g_pin_real_to_gpio[1*46+13] = g_pin_real_to_gpio[59]
*
* Where the returned value is 0, there is no GPIO pin
* at that location.
*/
-const unsigned char g_pin_to_gpio[GPIO_LUT_SIZE] = {
- 0, 0, 0, 0, 0, 0, 0, 66, 67, 69, 68, 45, 44, 23,
- 26, 47, 46, 27, 65, 22, 0, 0, 0, 0, 0, 0, 61, 86,
+const unsigned char g_pin_real_to_gpio[BBB_PIN_COUNT+1] = {
+ 0, 0, 0, 0, 0, 0, 0, 66, 67, 69, 68, 45, 44, 0,
+ 26, 47, 46, 27, 65, 0, 0, 0, 0, 0, 0, 0, 61, 86,
88, 87, 89, 10, 11, 9, 81, 8, 80, 78, 79, 76, 77, 74,
75, 72, 73, 70, 71, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 30, 60, 31, 50, 48, 51, 5, 4, 0, 0, 3, 2, 49,
- 15, 117, 14, 115, 0, 0, 112, 0, 0, 0, 0, 0, 0, 0,
+ 0, 30, 60, 31, 0, 48, 0, 5, 4, 0, 0, 0, 0, 49,
+ 15, 0, 14, 115, 0, 0, 112, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0
};
/**
- * Converts GPIO number to index for g_gpio, or 128 if no map.
+ * Maps a GPIO number to an index into g_gpio (only for use in bbb_pin.c)
+ * If there is no index for that GPIO number, 128 is returned.
*/
-const unsigned char g_gpio_to_index[GPIO_INDEX_SIZE] = {
- 128, 128, 0, 1, 2, 3, 128, 128, 4, 5, 6, 7, 128, 128,
- 8, 9, 128, 128, 128, 128, 128, 128, 10, 11, 128, 128, 12, 13,
- 128, 128, 14, 15, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 16, 17, 18, 19, 20, 21, 22, 23, 128, 128, 128, 128,
- 128, 128, 128, 128, 24, 25, 128, 128, 128, 26, 27, 28, 29, 30,
- 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 128, 128,
- 128, 128, 43, 44, 45, 46, 128, 128, 128, 128, 128, 128, 128, 128,
+const unsigned char g_pin_gpio_to_index[GPIO_MAX_NUMBER+1] = {
+ 128, 128, 128, 128, 0, 1, 128, 128, 2, 3, 4, 5, 128, 128,
+ 6, 7, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 8, 9,
+ 128, 128, 10, 11, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 128, 12, 13, 14, 15, 16, 17, 128, 128, 128, 128, 128, 128,
+ 128, 128, 128, 128, 18, 19, 128, 128, 128, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 128, 128,
+ 128, 128, 37, 38, 39, 40, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 47, 128, 128, 48, 128, 49, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128
+ 41, 128, 128, 42
+};
+
+/**
+ * Maps an index in g_gpio to the corresponding GPIO number.
+ */
+const unsigned char g_pin_index_to_gpio[GPIO_NUM_PINS] = {
+ 4, 5, 8, 9, 10, 11, 14, 15, 26, 27, 30, 31, 44, 45,
+ 46, 47, 48, 49, 60, 61, 65, 66, 67, 68, 69, 70, 71, 72,
+ 73, 74, 75, 76, 77, 78, 79, 80, 81, 86, 87, 88, 89, 112,
+ 115
};
/**
- * Converts index number of g_gpio into the gpio number
+ * Converts PWM index to PWM number
+ * e.g index 3 becomes 6 for /sys/class/pwm/pwm6
*/
-const unsigned char g_index_to_gpio[GPIO_NUM_PINS] = {
- 2, 3, 4, 5, 8, 9, 10, 11, 14, 15, 22, 23, 26, 27,
- 30, 31, 44, 45, 46, 47, 48, 49, 50, 51, 60, 61, 65, 66,
- 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
- 81, 86, 87, 88, 89, 112, 115, 117
-};
\ No newline at end of file
+const unsigned char g_pin_safe_pwm[PWM_NUM_SAFE_PINS] = {
+ 0, 2, 4, 6, 7
+}; //blergh
\ No newline at end of file