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-rw-r--r--src/drivers/ao_74hc497.c40
-rw-r--r--src/drivers/ao_74hc497.h27
-rw-r--r--src/drivers/ao_pad.c227
-rw-r--r--src/drivers/ao_pad.h67
-rw-r--r--src/drivers/ao_pca9922.c78
5 files changed, 439 insertions, 0 deletions
diff --git a/src/drivers/ao_74hc497.c b/src/drivers/ao_74hc497.c
new file mode 100644
index 00000000..93c544c3
--- /dev/null
+++ b/src/drivers/ao_74hc497.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+/*
+ * 74HC597 driver.
+ * Reads a single byte from the shift register
+ */
+
+#include <ao.h>
+#include <ao_74hc497.h>
+
+uint8_t
+ao_74hc497_read(void)
+{
+ static __xdata state;
+ ao_spi_get_bit(AO_74HC497_CS_PORT, AO_74HC497_CS_PIN, AO_74HC497_CS, AO_74HC497_SPI_BUS, AO_SPI_SPEED_FAST);
+ ao_spi_send(&state, 1, AO_74HC497_SPI_BUS);
+ ao_spi_put_bit(AO_74HC497_CS_PORT, AO_74HC497_CS_PIN, AO_74HC497_CS, AO_74HC497_SPI_BUS);
+ return state;
+}
+
+void
+ao_74hc497_init(void)
+{
+ ao_enable_output(AO_74HC497_CS_PORT, AO_74HC497_CS_PIN, AO_74HC497_CS, 1);
+}
diff --git a/src/drivers/ao_74hc497.h b/src/drivers/ao_74hc497.h
new file mode 100644
index 00000000..6df7bcae
--- /dev/null
+++ b/src/drivers/ao_74hc497.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#ifndef _AO_74HC497_H_
+#define _AO_74HC497_H_
+
+uint8_t
+ao_74hc497_read(void);
+
+void
+ao_74hc497_init(void);
+
+#endif /* _AO_74HC497_H_ */
diff --git a/src/drivers/ao_pad.c b/src/drivers/ao_pad.c
new file mode 100644
index 00000000..21aa788d
--- /dev/null
+++ b/src/drivers/ao_pad.c
@@ -0,0 +1,227 @@
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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 <ao.h>
+#include <ao_pad.h>
+#include <ao_74hc497.h>
+
+__xdata uint8_t ao_pad_ignite;
+
+#define ao_pad_igniter_status(c) AO_PAD_IGNITER_STATUS_UNKNOWN
+#define ao_pad_arm_status() AO_PAD_ARM_STATUS_UNKNOWN
+
+#if 0
+#define PRINTD(...) printf(__VA_ARGS__)
+#else
+#define PRINTD(...)
+#endif
+
+static void
+ao_pad_run(void)
+{
+ for (;;) {
+ while (!ao_pad_ignite)
+ ao_sleep(&ao_pad_ignite);
+ /*
+ * Actually set the pad bits
+ */
+ AO_PAD_PORT = (AO_PAD_PORT & (~AO_PAD_ALL_PINS)) | ao_pad_ignite;
+ while (ao_pad_ignite) {
+ ao_pad_ignite = 0;
+ ao_delay(AO_PAD_FIRE_TIME);
+ }
+ AO_PAD_PORT &= ~(AO_PAD_ALL_PINS);
+ }
+}
+
+static void
+ao_pad_status(void)
+{
+ for (;;) {
+ ao_delay(AO_SEC_TO_TICKS(1));
+#if 0
+ if (ao_igniter_status(ao_igniter_drogue) == ao_igniter_ready) {
+ if (ao_igniter_status(ao_igniter_main) == ao_igniter_ready) {
+ for (i = 0; i < 5; i++) {
+ ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(50));
+ ao_delay(AO_MS_TO_TICKS(100));
+ }
+ } else {
+ ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
+ }
+ }
+#endif
+ }
+}
+
+static __pdata uint8_t ao_pad_armed;
+static __pdata uint16_t ao_pad_arm_time;
+static __pdata uint8_t ao_pad_box;
+
+static void
+ao_pad(void)
+{
+ static __xdata struct ao_pad_command command;
+ static __xdata struct ao_pad_query query;
+ int16_t time_difference;
+ uint8_t c;
+
+ ao_led_off(AO_LED_RED);
+ ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
+ ao_pad_box = ao_74hc497_read();
+ for (;;) {
+ flush();
+ if (ao_radio_cmac_recv(&command, sizeof (command), 0) != AO_RADIO_CMAC_OK)
+ continue;
+
+ PRINTD ("tick %d serial %d cmd %d channel %d\n",
+ command.tick, command.serial, command.cmd, command.channel);
+
+ switch (command.cmd) {
+ case AO_LAUNCH_ARM:
+ if (command.box != ao_pad_box) {
+ PRINTD ("box number mismatch\n");
+ break;
+ }
+
+ if (command.channels & ~(AO_PAD_ALL_PINS))
+ break;
+
+ time_difference = command.tick - ao_time();
+ PRINTD ("arm tick %d local tick %d\n", command.tick, ao_time());
+ if (time_difference < 0)
+ time_difference = -time_difference;
+ if (time_difference > 10) {
+ PRINTD ("time difference too large %d\n", time_difference);
+ break;
+ }
+ PRINTD ("armed\n");
+ ao_pad_armed = command.channels;
+ ao_pad_arm_time = ao_time();
+
+ /* fall through ... */
+
+ case AO_LAUNCH_QUERY:
+ if (command.box != ao_pad_box) {
+ PRINTD ("box number mismatch\n");
+ break;
+ }
+
+ query.tick = ao_time();
+ query.box = ao_pad_box;
+ query.channels = AO_PAD_ALL_PINS;
+ query.armed = ao_pad_armed;
+ query.arm_status = ao_pad_arm_status();
+ for (c = 0; c < AO_PAD_NUM; c++)
+ query.igniter_status[c] = ao_pad_igniter_status(c);
+ PRINTD ("query tick %d serial %d channel %d valid %d arm %d igniter %d\n",
+ query.tick, query.serial, query.channel, query.valid, query.arm_status,
+ query.igniter_status);
+ ao_radio_cmac_send(&query, sizeof (query));
+ break;
+ case AO_LAUNCH_FIRE:
+ if (!ao_pad_armed) {
+ PRINTD ("not armed\n");
+ break;
+ }
+ if ((uint16_t) (ao_time() - ao_pad_arm_time) > AO_SEC_TO_TICKS(20)) {
+ PRINTD ("late pad arm_time %d time %d\n",
+ ao_pad_arm_time, ao_time());
+ break;
+ }
+ time_difference = command.tick - ao_time();
+ if (time_difference < 0)
+ time_difference = -time_difference;
+ if (time_difference > 10) {
+ PRINTD ("time different too large %d\n", time_difference);
+ break;
+ }
+ PRINTD ("ignite\n");
+ ao_pad_ignite = ao_pad_armed;
+ ao_wakeup(&ao_pad_ignite);
+ break;
+ }
+ }
+}
+
+void
+ao_pad_test(void)
+{
+#if 0
+ switch (ao_igniter_status(ao_igniter_drogue)) {
+ case ao_igniter_ready:
+ case ao_igniter_active:
+ printf ("Armed: ");
+ switch (ao_igniter_status(ao_igniter_main)) {
+ default:
+ printf("unknown status\n");
+ break;
+ case ao_igniter_ready:
+ printf("igniter good\n");
+ break;
+ case ao_igniter_open:
+ printf("igniter bad\n");
+ break;
+ }
+ break;
+ default:
+ printf("Disarmed\n");
+ }
+#endif
+}
+
+void
+ao_pad_manual(void)
+{
+ ao_cmd_white();
+ if (!ao_match_word("DoIt"))
+ return;
+ ao_cmd_white();
+ ao_pad_ignite = 1;
+ ao_wakeup(&ao_pad_ignite);
+}
+
+static __xdata struct ao_task ao_pad_task;
+static __xdata struct ao_task ao_pad_ignite_task;
+static __xdata struct ao_task ao_pad_status_task;
+
+__code struct ao_cmds ao_pad_cmds[] = {
+ { ao_pad_test, "t\0Test pad continuity" },
+ { ao_pad_manual, "i <key>\0Fire igniter. <key> is doit with D&I" },
+ { 0, NULL }
+};
+
+void
+ao_pad_init(void)
+{
+#if AO_PAD_NUM > 0
+ ao_enable_output(AO_PAD_PORT, AO_PAD_PIN_0, AO_PAD_0, 0);
+#endif
+#if AO_PAD_NUM > 1
+ ao_enable_output(AO_PAD_PORT, AO_PAD_PIN_1, AO_PAD_1, 0);
+#endif
+#if AO_PAD_NUM > 2
+ ao_enable_output(AO_PAD_PORT, AO_PAD_PIN_2, AO_PAD_2, 0);
+#endif
+#if AO_PAD_NUM > 3
+ ao_enable_output(AO_PAD_PORT, AO_PAD_PIN_3, AO_PAD_3, 0);
+#endif
+ ao_cmd_register(&ao_pad_cmds[0]);
+ ao_add_task(&ao_pad_task, ao_pad, "pad listener");
+ ao_add_task(&ao_pad_ignite_task, ao_pad_run, "pad igniter");
+ ao_add_task(&ao_pad_status_task, ao_pad_status, "pad status");
+}
diff --git a/src/drivers/ao_pad.h b/src/drivers/ao_pad.h
new file mode 100644
index 00000000..9ea016ff
--- /dev/null
+++ b/src/drivers/ao_pad.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#ifndef _AO_PAD_H_
+#define _AO_PAD_H_
+
+#define AO_PAD_MAX_CHANNELS 8
+
+struct ao_pad_command {
+ uint16_t tick;
+ uint16_t box;
+ uint8_t cmd;
+ uint8_t channels;
+};
+
+/* Report current telefire status.
+ */
+
+#define AO_PAD_QUERY 1
+
+struct ao_pad_query {
+ uint16_t tick; /* telefire tick */
+ uint16_t box; /* telefire box number */
+ uint8_t channels; /* which chanels are present */
+ uint8_t armed; /* which channels are armed */
+ uint8_t arm_status; /* status of arming switch */
+ uint8_t igniter_status[AO_PAD_MAX_CHANNELS]; /* status for each igniter */
+};
+
+/* Set current armed pads, report back status
+ */
+
+#define AO_PAD_ARM 2
+
+/* Fire current armed pads for 200ms, no report
+ */
+#define AO_PAD_FIRE 3
+
+#define AO_PAD_FIRE_TIME AO_MS_TO_TICKS(200)
+
+#define AO_PAD_ARM_STATUS_DISARMED 0
+#define AO_PAD_ARM_STATUS_ARMED 1
+#define AO_PAD_ARM_STATUS_UNKNOWN 2
+
+#define AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN 0
+#define AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN 1
+#define AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_CLOSED 2
+#define AO_PAD_IGNITER_STATUS_UNKNOWN 3
+
+void
+ao_pad_init(void);
+
+#endif /* _AO_PAD_H_ */
diff --git a/src/drivers/ao_pca9922.c b/src/drivers/ao_pca9922.c
new file mode 100644
index 00000000..dc006f55
--- /dev/null
+++ b/src/drivers/ao_pca9922.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+/*
+ * PCA9922 LED driver. This uses SPI to send a single byte to the device to
+ * set the current state of the LEDs using the existing LED interface
+ */
+
+#include <ao.h>
+
+static __xdata uint8_t ao_led_state;
+
+static void
+ao_led_apply(void)
+{
+ /* Don't try the SPI bus during initialization */
+ if (!ao_cur_task)
+ return;
+ ao_spi_get_bit(AO_PCA9922_CS_PORT, AO_PCA9922_CS_PIN, AO_PCA9922_CS, AO_PCA9922_SPI_BUS, AO_SPI_SPEED_FAST);
+ ao_spi_send(&ao_led_state, 1, AO_PCA9922_SPI_BUS);
+ ao_spi_put_bit(AO_PCA9922_CS_PORT, AO_PCA9922_CS_PIN, AO_PCA9922_CS, AO_PCA9922_SPI_BUS);
+}
+
+void
+ao_led_on(uint8_t colors)
+{
+ ao_led_state |= colors;
+ ao_led_apply();
+}
+
+void
+ao_led_off(uint8_t colors)
+{
+ ao_led_state &= ~colors;
+ ao_led_apply();
+}
+
+void
+ao_led_set(uint8_t colors)
+{
+ ao_led_state = colors;
+ ao_led_apply();
+}
+
+void
+ao_led_toggle(uint8_t colors)
+{
+ ao_led_state ^= colors;
+ ao_led_apply();
+}
+
+void
+ao_led_for(uint8_t colors, uint16_t ticks) __reentrant
+{
+ ao_led_on(colors);
+ ao_delay(ticks);
+ ao_led_off(colors);
+}
+
+void
+ao_led_init(uint8_t enable)
+{
+ ao_enable_output(AO_PCA9922_CS_PORT, AO_PCA9922_CS_PIN, AO_PCA9922_CS, 1);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-27 16:37:56 +0000