projects/step-up/control.c

   1 #include <inttypes.h>
   2 #include <stdlib.h> // for NULL
   3
   4 #include "lights.h"
   5
   6 static unsigned char on_pattern[] = {
   7         /* 8 bits */
   8         0b11111111,
   9 };
  10
  11 #define IVA
  12
  13 static unsigned char blink_pattern[] = {
  14 #ifdef IVA
  15         /* ../...-/..-/.../-.-/.-// */
  16         /* 137 bits, 19.7% on */
  17         0b10000100,
  18         0b00000000,
  19         0b10000100,
  20         0b00100001,
  21         0b11000000,
  22         0b00001000,
  23         0b01000011,
  24         0b10000000,
  25         0b00010000,
  26         0b10000100,
  27         0b00000000,
  28         0b11100001,
  29         0b00001110,
  30         0b00000000,
  31         0b01000011,
  32         0b10000000,
  33         0b00000000,
  34         0b00000000,
  35 #else /* FILIP */
  36         /* ..-./../.-../../.--.// */
  37         /* 124 bits, 19.4% on */
  38         0b10000100,
  39         0b00111000,
  40         0b01000000,
  41         0b00001000,
  42         0b01000000,
  43         0b00001000,
  44         0b01110000,
  45         0b10000100,
  46         0b00000000,
  47         0b10000100,
  48         0b00000000,
  49         0b10000111,
  50         0b00001110,
  51         0b00010000,
  52         0b00000000,
  53         0b00000000,
  54 #endif
  55 };
  56
  57 static unsigned char slow_pattern[] = {
  58         /* 24 bits */
  59         0b00010000,
  60         0b00000000,
  61         0b00000000,
  62 };
  63
  64 static unsigned char light_mode;
  65 static union {
  66         unsigned char errors;
  67         struct {
  68                 unsigned char shutdown_in_progress : 1;
  69                 unsigned char pwmled_error : 1;
  70                 unsigned char battery_low : 1;
  71         };
  72 } e;
  73
  74 void set_error(unsigned char err)
  75 {
  76         switch(err) {
  77         case ERR_BATTERY:
  78                 e.battery_low = 1;
  79                 pwmled_set_target(0);
  80                 pattern_reload();
  81                 break;
  82         case ERR_PWMLED:
  83                 e.pwmled_error = 1;
  84                 break;
  85         }
  86 }
  87
  88 void init_control()
  89 {
  90         light_mode = 1;
  91         e.errors = 0;
  92         short_press();
  93 }
  94
  95 void long_press_start()
  96 {
  97         e.shutdown_in_progress = 1;
  98         pattern_reload();
  99 }
 100
 101 void short_press()
 102 {
 103         if (e.battery_low)
 104                 return;
 105
 106         if (++light_mode >= 2*N_PWMLED_MODES)
 107                 light_mode = 0;
 108
 109         pwmled_set_target(light_mode < N_PWMLED_MODES
 110                 ? light_mode
 111                 : light_mode - N_PWMLED_MODES);
 112         pattern_reload();
 113 }
 114
 115 void long_press()
 116 {
 117         power_down();
 118 }
 119
 120 void pwmled_pattern_select(unsigned char led)
 121 {
 122         if (e.shutdown_in_progress) {
 123                 led_set_pattern(led, 0, 0, NULL);
 124         } else if (e.battery_low) {
 125                 led_set_pattern(led, 24, 0, slow_pattern);
 126         } else if (light_mode == 0) {
 127                 led_set_pattern(led, 24, 0, slow_pattern);
 128         } else if (light_mode < N_PWMLED_MODES) {
 129 #ifdef IVA
 130                 led_set_pattern(led, 137, 0, blink_pattern);
 131 #else /* FILIP */
 132                 led_set_pattern(led, 124, 0, blink_pattern);
 133 #endif
 134         } else {
 135                 led_set_pattern(led, 8, 0, on_pattern);
 136         }
 137 }
 138
 139 void status_led_pattern_select(unsigned char led)
 140 {
 141         if (e.shutdown_in_progress) {
 142                 led_set_pattern(led, 8, 0, on_pattern);
 143         } else if (e.pwmled_error) {
 144                 led_set_number_pattern(led, 1, 1);
 145         } else if (e.battery_low) {
 146                 led_set_number_pattern(led, 1, 1);
 147         } else {
 148                 led_set_number_pattern(led, battery_gauge(), 0);
 149         }
 150 }
 151
 152 #if 0
 153 void brake_on()
 154 {
 155         braking = 1;
 156         gpio_set(0, 1);
 157         led_set_pattern(N_PWMLEDS, status_led_pattern_select());
 158         led_set_pattern(0, pwmled0_pattern_select());
 159 }
 160
 161 void brake_off()
 162 {
 163         braking = 0;
 164         gpio_set(0, 0);
 165         led_set_pattern(N_PWMLEDS, status_led_pattern_select());
 166         led_set_pattern(0, pwmled0_pattern_select());
 167 }
 168
 169 #endif