20100416
[aversive.git] / projects / microb2010 / cobboard / state.c
index d02e544..389411e 100644 (file)
@@ -1,6 +1,6 @@
-/*  
+/*
  *  Copyright Droids Corporation (2009)
- * 
+ *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
@@ -58,6 +58,7 @@
 
 static struct vt100 local_vt100;
 static volatile uint8_t state_mode;
+static volatile uint8_t state_status;
 static uint8_t cob_count;
 
 /* short aliases */
@@ -68,15 +69,14 @@ static uint8_t cob_count;
 #define R_HARVEST(mode)  (!!((mode) & I2C_COBBOARD_MODE_R_HARVEST))
 #define HARVEST(side, mode) ((side) == I2C_LEFT_SIDE ? L_HARVEST(mode) : R_HARVEST(mode))
 #define EJECT(mode)      (!!((mode) & I2C_COBBOARD_MODE_EJECT))
+#define INIT(mode)       (!!((mode) & I2C_COBBOARD_MODE_INIT))
 
 uint8_t state_debug = 0;
 
-#if 0
-static void state_dump_sensors(void)
+uint8_t state_get_cob_count(void)
 {
-       STMCH_DEBUG("TODO\n");
+       return cob_count;
 }
-#endif
 
 static void state_debug_wait_key_pressed(void)
 {
@@ -86,37 +86,49 @@ static void state_debug_wait_key_pressed(void)
        while(!cmdline_keypressed());
 }
 
-/* return true if cob is present */
-static uint8_t state_cob_present(uint8_t side)
+/* return true if the cob is correctly inside */
+static uint8_t state_cob_inside(void)
 {
-       if (side == I2C_LEFT_SIDE)
-               return sensor_get(S_LCOB);
-       else
-               /* XXX */
-               //              return sensor_get(S_LCOB);
-               return 0;
+       return sensor_get(S_COB_INSIDE_L) &&
+               sensor_get(S_COB_INSIDE_R);
 }
 
-/* return the detected color of the cob (only valid if present) */
-static uint8_t state_cob_color(uint8_t side)
+/* return true if there is no cob correctly inside */
+static uint8_t state_no_cob_inside(void)
 {
-       if (side == I2C_LEFT_SIDE)
-               return I2C_COB_WHITE;
+       return !sensor_get(S_COB_INSIDE_L) &&
+               !sensor_get(S_COB_INSIDE_R);
+}
+
+/* pack/deploy spickles depending on mode */
+static void spickle_prepare(uint8_t side)
+{
+       if (cob_count >= 5)
+               spickle_pack(side);
+       else if (DEPLOY(side, state_mode) && !HARVEST(side, state_mode))
+               spickle_mid(side);
+       else if (DEPLOY(side, state_mode) && HARVEST(side, state_mode))
+               spickle_deploy(side);
        else
-               /* XXX */
-               //              return sensor_get(S_LCOB);
-               return 0;
+               spickle_pack(side);
 }
 
 /* set a new state, return 0 on success */
 int8_t state_set_mode(uint8_t mode)
 {
        state_mode = mode;
-       /* XXX synchrounous pack here */
-       STMCH_DEBUG("%s(): l_deploy=%d l_harvest=%d "
-                   "r_deploy=%d r_harvest=%d eject=%d",
-                   __FUNCTION__, L_DEPLOY(mode), L_HARVEST(mode),
-                   R_DEPLOY(mode), R_HARVEST(mode), EJECT(mode));
+
+       /* preempt current action if not busy */
+       if (state_status != I2C_COBBOARD_STATUS_LBUSY)
+               spickle_prepare(I2C_LEFT_SIDE);
+       if (state_status != I2C_COBBOARD_STATUS_RBUSY)
+               spickle_prepare(I2C_RIGHT_SIDE);
+
+/*     STMCH_DEBUG("%s(): l_deploy=%d l_harvest=%d " */
+/*                 "r_deploy=%d r_harvest=%d eject=%d", */
+/*                 __FUNCTION__, L_DEPLOY(mode), L_HARVEST(mode), */
+/*                 R_DEPLOY(mode), R_HARVEST(mode), EJECT(mode)); */
+
        return 0;
 }
 
@@ -132,6 +144,7 @@ static uint8_t state_want_exit(void)
                return 0;
        if (vt100_parser(&local_vt100, c) == KEY_CTRL_C)
                return 1;
+       printf_P(PSTR("CTRL-C\r\n"));
        return 0;
 }
 
@@ -140,46 +153,125 @@ uint8_t state_get_mode(void)
        return state_mode;
 }
 
+uint8_t state_get_status(void)
+{
+       return state_status;
+}
+
 /* harvest cobs from area */
 static void state_do_harvest(uint8_t side)
 {
-       uint16_t delay;
+       if (side == I2C_LEFT_SIDE)
+               state_status = I2C_COBBOARD_STATUS_LBUSY;
+       else
+               state_status = I2C_COBBOARD_STATUS_RBUSY;
 
        /* if there is no cob, return */
-       if (state_cob_present(side))
-               return;
-               
-       /* if it is black, nothing to do */
-       if (state_cob_color(side) == I2C_COB_BLACK)
+       if (cob_falling_edge(side) == 0)
                return;
 
+       STMCH_DEBUG("start");
+
        /* eat the cob */
        spickle_pack(side);
-       state_debug_wait_key_pressed();
-       delay = spickle_get_pack_delay(side);
-       time_wait_ms(delay);
+
+       time_wait_ms(250);
+       cobroller_on(side);
+
+       /* check that cob is correctly in place */
+       if (WAIT_COND_OR_TIMEOUT(state_cob_inside(), 750) == 0) {
+               if (state_no_cob_inside()) {
+                       STMCH_DEBUG("no cob");
+                       return;
+               }
+               STMCH_DEBUG("bad cob state");
+
+               /* while cob is not correctly placed try to extract
+                * it as much as we can */
+               while (state_cob_inside() == 0 &&
+                      state_no_cob_inside() == 0) {
+                       uint8_t cpt = 0;
+                       if (cpt == 0)
+                               cobroller_reverse(side);
+                       else if (cpt == 1)
+                               cobroller_off(side);
+                       else if (cpt == 2)
+                               cobroller_on(side);
+                       cpt ++;
+                       cpt %= 3;
+                       shovel_mid();
+                       time_wait_ms(250);
+                       shovel_down();
+                       time_wait_ms(250);
+               }
+
+               STMCH_DEBUG("cob removed");
+               if (state_no_cob_inside()) {
+                       STMCH_DEBUG("no cob");
+                       return;
+               }
+       }
+
+       /* cob is inside, switch off roller */
+       cobroller_off(side);
+       cob_count ++;
+
+       /* last cob, nothing to do */
+       if (cob_count == 5)
+               return;
 
        /* redeploy the spickle */
        spickle_deploy(side);
        state_debug_wait_key_pressed();
 
-       cob_count ++;
+       /* let the loaded cobs go */
+       servo_door_block();
+       servo_carry_open();
+       time_wait_ms(100);
+       state_debug_wait_key_pressed();
 
        /* store it */
        shovel_up();
-       wait_ms(200);
+
+       while (WAIT_COND_OR_TIMEOUT(shovel_is_up(), 400) == 0) {
+               STMCH_DEBUG("shovel blocked");
+               shovel_down();
+               time_wait_ms(250);
+               shovel_up();
+       }
+
        state_debug_wait_key_pressed();
-       shovel_down();
+
+       /* close the carry servos */
+       servo_carry_close();
+       servo_door_close();
+       time_wait_ms(200);
        state_debug_wait_key_pressed();
+
+       shovel_down();
+
+       while (WAIT_COND_OR_TIMEOUT(shovel_is_down(), 400) == 0) {
+               STMCH_DEBUG("shovel blocked");
+               shovel_up();
+               time_wait_ms(250);
+               shovel_down();
+       }
+
+       STMCH_DEBUG("end");
 }
 
 /* eject cobs */
 static void state_do_eject(void)
 {
+       state_status = I2C_COBBOARD_STATUS_EJECT;
        cob_count = 0;
        shovel_mid();
+       servo_carry_open();
+       servo_door_open();
        time_wait_ms(2000);
        shovel_down();
+       servo_door_close();
+       servo_carry_close();
 }
 
 /* main state machine */
@@ -187,30 +279,46 @@ void state_machine(void)
 {
        while (state_want_exit() == 0) {
 
-               /* pack spickles */
-               if (!L_DEPLOY(state_mode))
-                       spickle_pack(I2C_LEFT_SIDE);
-               if (!R_DEPLOY(state_mode))
-                       spickle_pack(I2C_RIGHT_SIDE);
+               state_status = I2C_COBBOARD_STATUS_READY;
+
+               /* init */
+               if (INIT(state_mode)) {
+                       state_mode &= (~I2C_COBBOARD_MODE_INIT);
+                       state_init();
+               }
+
+               /* pack/deply spickles, enable/disable roller */
+               cobroller_off(I2C_LEFT_SIDE);
+               cobroller_off(I2C_RIGHT_SIDE);
+               spickle_prepare(I2C_LEFT_SIDE);
+               spickle_prepare(I2C_RIGHT_SIDE);
 
                /* harvest */
-               if (L_DEPLOY(state_mode) && L_HARVEST(state_mode))
-                       state_do_harvest(I2C_LEFT_SIDE);
-               if (R_DEPLOY(state_mode) && R_HARVEST(state_mode))
-                       state_do_harvest(I2C_RIGHT_SIDE);
+               if (cob_count < 5) {
+                       if (L_DEPLOY(state_mode) && L_HARVEST(state_mode))
+                               state_do_harvest(I2C_LEFT_SIDE);
+                       if (R_DEPLOY(state_mode) && R_HARVEST(state_mode))
+                               state_do_harvest(I2C_RIGHT_SIDE);
+               }
 
                /* eject */
-               if (EJECT(state_mode))
+               if (EJECT(state_mode)) {
+                       state_mode &= (~I2C_COBBOARD_MODE_EJECT);
                        state_do_eject();
+               }
        }
+       state_status = I2C_COBBOARD_STATUS_READY;
 }
 
 void state_init(void)
 {
        vt100_init(&local_vt100);
        shovel_down();
+       servo_door_close();
+       servo_carry_close();
        spickle_pack(I2C_LEFT_SIDE);
        spickle_pack(I2C_RIGHT_SIDE);
        state_mode = 0;
        cob_count = 0;
+       state_status = I2C_COBBOARD_STATUS_READY;
 }