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Diffstat (limited to 'digital/io-serial/src/codebar/codebar.c')
-rw-r--r--digital/io-serial/src/codebar/codebar.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/digital/io-serial/src/codebar/codebar.c b/digital/io-serial/src/codebar/codebar.c
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+++ b/digital/io-serial/src/codebar/codebar.c
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+/* codebar.c */
+/* codebar - Codebar Reader. {{{
+ *
+ * Copyright (C) 2011
+ *
+ * APBTeam:
+ * Web: http://apbteam.org/
+ * Email: team AT apbteam DOT org
+ *
+ * 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * }}} */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "common.h"
+#include "modules/twi/twi.h"
+#include "modules/proto/proto.h"
+#include "modules/uart/uart.h"
+#include "modules/utils/utils.h"
+#include "modules/utils/byte.h"
+#include "modules/utils/crc.h"
+#include "timer.h"
+
+/* from robospierre/element.h file */
+#define ELEMENT_UNKOWN 0
+#define ELEMENT_QUEEN 4
+#define ELEMENT_KING 8
+
+#define STRING_MAX 10
+
+struct status_t
+{
+ uint16_t age1;
+ uint8_t piece1;
+ uint16_t age2;
+ uint8_t piece2;
+};
+
+char buffer_u0[STRING_MAX], buffer_u1[STRING_MAX];
+
+uint8_t
+string_to_element (char *data, uint8_t data_len)
+{
+ uint8_t i;
+ for (i = 0; i < data_len - 5; i++)
+ {
+ if (memcmp (data + i, "QUEEN", 5) == 0)
+ {
+ data[i] = 0;
+ return ELEMENT_QUEEN;
+ }
+ if (memcmp (data + i, "QWEEN", 5) == 0)
+ {
+ data[i] = 0;
+ return ELEMENT_QUEEN;
+ }
+ }
+ for (i = 0; i < data_len - 4; i++)
+ {
+ if (memcmp (data + i, "KING", 4) == 0)
+ {
+ data[i] = 0;
+ return ELEMENT_KING;
+ }
+ }
+ return ELEMENT_UNKOWN;
+}
+
+void
+read_strings (void)
+{
+ uint8_t i;
+ while (uart0_poll ())
+ {
+ /* Insert char at end of string. */
+ for (i = 1; i < STRING_MAX; i++)
+ buffer_u0[i - 1] = buffer_u0[i];
+ buffer_u0[STRING_MAX - 1] = uart0_getc ();
+ }
+ while (uart1_poll ())
+ {
+ /* Insert char at end of string. */
+ for (i = 1; i < STRING_MAX; i++)
+ buffer_u1[i - 1] = buffer_u1[i];
+ buffer_u1[STRING_MAX - 1] = uart1_getc ();
+ }
+}
+
+int
+main (int argc, char **argv)
+{
+ struct status_t status;
+ uint8_t element_type;
+
+ status.age1 = 0;
+ status.piece1 = ELEMENT_UNKOWN;
+ status.age2 = 0;
+ status.piece2 = ELEMENT_UNKOWN;
+
+ timer_init ();
+ avr_init (argc, argv);
+ sei ();
+ uart0_init ();
+ uart1_init ();
+ /* Initialize TWI. */
+ twi_init (0x20);
+
+ while (1)
+ {
+ /* Wait until next cycle. */
+ timer_wait ();
+ if (status.age1 < (uint16_t) -1)
+ status.age1 ++;
+ if (status.age2 < (uint16_t) -1)
+ status.age2 ++;
+
+ read_strings ();
+ element_type = string_to_element (buffer_u0, STRING_MAX);
+ if (element_type)
+ {
+ status.piece1 = element_type;
+ status.age1 = 0;
+ }
+ element_type = string_to_element (buffer_u1, STRING_MAX);
+ if (element_type)
+ {
+ status.piece2 = element_type;
+ status.age2 = 0;
+ }
+
+ uint8_t status_with_crc[7];
+ uint8_t *status_twi = &status_with_crc[1];
+ status_twi[0] = v16_to_v8 (status.age1, 1);
+ status_twi[1] = v16_to_v8 (status.age1, 0);
+ status_twi[2] = status.piece1;
+ status_twi[3] = v16_to_v8 (status.age2, 1);
+ status_twi[4] = v16_to_v8 (status.age2, 0);
+ status_twi[5] = status.piece2;
+ /* Compute CRC. */
+ status_with_crc[0] = crc_compute (&status_with_crc[1], sizeof (status_with_crc) - 1);
+ twi_slave_update (status_with_crc, sizeof (status_with_crc));
+ }
+ return 0;
+}