X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fdrivers%2Fao_pad.c;h=ed749d1cf756e4be62a961abab7e8bf69fc4d866;hp=99a90e7739970d3954f460c28e7d3c2924801c79;hb=99642f9c4f89aa5577376a9cd118e7cff26e2762;hpb=93100ae8d4c8bd8fd6bdeff2cdc87b613c5d8058 diff --git a/src/drivers/ao_pad.c b/src/drivers/ao_pad.c index 99a90e77..ed749d1c 100644 --- a/src/drivers/ao_pad.c +++ b/src/drivers/ao_pad.c @@ -3,7 +3,8 @@ * * 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. + * 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 @@ -16,6 +17,7 @@ */ #include +#include #include #include #include @@ -68,10 +70,20 @@ ao_strobe(uint8_t v) #endif } +#ifdef AO_PAD_PORT_0 +#define pins_pad(pad) (*((AO_PAD_ ## pad ## _PORT) == AO_PAD_PORT_0 ? (&pins0) : (&pins1))) +#else +#define pins_pad(pad) pins0 +#define AO_PAD_PORT_0 AO_PAD_PORT +#endif + static void ao_pad_run(void) { - AO_PORT_TYPE pins; + AO_PORT_TYPE pins0; +#ifdef AO_PAD_PORT_1 + AO_PORT_TYPE pins1; +#endif for (;;) { while (!ao_pad_ignite) @@ -79,44 +91,98 @@ ao_pad_run(void) /* * Actually set the pad bits */ - pins = 0; + pins0 = 0; +#ifdef AO_PAD_PORT_1 + pins1 = 0; +#endif #if AO_PAD_NUM > 0 if (ao_pad_ignite & (1 << 0)) - pins |= (1 << AO_PAD_PIN_0); + pins_pad(0) |= (1 << AO_PAD_PIN_0); #endif #if AO_PAD_NUM > 1 if (ao_pad_ignite & (1 << 1)) - pins |= (1 << AO_PAD_PIN_1); + pins_pad(1) |= (1 << AO_PAD_PIN_1); #endif #if AO_PAD_NUM > 2 if (ao_pad_ignite & (1 << 2)) - pins |= (1 << AO_PAD_PIN_2); + pins_pad(2) |= (1 << AO_PAD_PIN_2); #endif #if AO_PAD_NUM > 3 if (ao_pad_ignite & (1 << 3)) - pins |= (1 << AO_PAD_PIN_3); + pins_pad(3) |= (1 << AO_PAD_PIN_3); +#endif +#if AO_PAD_NUM > 4 + if (ao_pad_ignite & (1 << 4)) + pins_pad(4) |= (1 << AO_PAD_PIN_4); +#endif +#if AO_PAD_NUM > 5 + if (ao_pad_ignite & (1 << 5)) + pins_pad(5) |= (1 << AO_PAD_PIN_5); +#endif +#if AO_PAD_NUM > 6 + if (ao_pad_ignite & (1 << 6)) + pins_pad(6) |= (1 << AO_PAD_PIN_6); +#endif +#if AO_PAD_NUM > 7 + if (ao_pad_ignite & (1 << 7)) + pins_pad(7) |= (1 << AO_PAD_PIN_7); +#endif +#ifdef AO_PAD_PORT_1 + PRINTD("ignite pins 0x%x 0x%x\n", pins0, pins1); + ao_gpio_set_bits(AO_PAD_PORT_0, pins0); + ao_gpio_set_bits(AO_PAD_PORT_1, pins1); +#else + PRINTD("ignite pins 0x%x\n", pins0); + ao_gpio_set_bits(AO_PAD_PORT_0, pins0); #endif - PRINTD("ignite pins 0x%x\n", pins); - ao_gpio_set_bits(AO_PAD_PORT, pins); while (ao_pad_ignite) { ao_pad_ignite = 0; ao_delay(AO_PAD_FIRE_TIME); } - ao_gpio_clr_bits(AO_PAD_PORT, pins); - PRINTD("turn off pins 0x%x\n", pins); +#ifdef AO_PAD_PORT_1 + ao_gpio_clr_bits(AO_PAD_PORT_0, pins0); + ao_gpio_clr_bits(AO_PAD_PORT_1, pins1); + PRINTD("turn off pins 0x%x 0x%x\n", pins0, pins1); +#else + ao_gpio_set_bits(AO_PAD_PORT_0, pins0); + PRINTD("turn off pins 0x%x\n", pins0); +#endif } } #define AO_PAD_ARM_SIREN_INTERVAL 200 -#ifndef AO_PYRO_R_PYRO_SENSE -#define AO_PYRO_R_PYRO_SENSE 100 -#define AO_PYRO_R_SENSE_GND 27 -#define AO_FIRE_R_POWER_FET 100 -#define AO_FIRE_R_FET_SENSE 100 -#define AO_FIRE_R_SENSE_GND 27 -#endif +/* Resistor values needed for various voltage test ratios: + * + * Net names involved: + * + * V_BATT Battery power, after the initial power switch + * V_PYRO Pyro power, after the pyro power switch (and initial power switch) + * PYRO_SENSE ADC input to sense V_PYRO voltage + * BATT_SENSE ADC input to sense V_BATT voltage + * IGNITER FET output to pad (the other pad lead hooks to V_PYRO) + * IGNITER_SENSE ADC input to sense igniter voltage + * + * AO_PAD_R_V_BATT_BATT_SENSE Resistor from battery rail to battery sense input + * AO_PAD_R_BATT_SENSE_GND Resistor from battery sense input to ground + * + * AO_PAD_R_V_BATT_V_PYRO Resistor from battery rail to pyro rail + * AO_PAD_R_V_PYRO_PYRO_SENSE Resistor from pyro rail to pyro sense input + * AO_PAD_R_PYRO_SENSE_GND Resistor from pyro sense input to ground + * + * AO_PAD_R_V_PYRO_IGNITER Optional resistors from pyro rail to FET igniter output + * AO_PAD_R_IGNITER_IGNITER_SENSE Resistors from FET igniter output to igniter sense ADC inputs + * AO_PAD_R_IGNITER_SENSE_GND Resistors from igniter sense ADC inputs to ground + */ + +int16_t +ao_pad_decivolt(int16_t adc, int16_t r_plus, int16_t r_minus) +{ + int32_t mul = (int32_t) AO_ADC_REFERENCE_DV * (r_plus + r_minus); + int32_t div = (int32_t) AO_ADC_MAX * r_minus; + return ((int32_t) adc * mul + mul/2) / div; +} static void ao_pad_monitor(void) @@ -131,6 +197,7 @@ ao_pad_monitor(void) sample = ao_data_head; for (;;) { __pdata int16_t pyro; + ao_arch_critical( while (sample == ao_data_head) ao_sleep((void *) DATA_TO_XDATA(&ao_data_head)); @@ -140,28 +207,18 @@ ao_pad_monitor(void) packet = &ao_data_ring[sample]; sample = ao_data_ring_next(sample); - pyro = packet->adc.pyro; - -#define VOLTS_TO_PYRO(x) ((int16_t) ((x) * ((1.0 * AO_PYRO_R_SENSE_GND) / \ - (1.0 * (AO_PYRO_R_SENSE_GND + AO_PYRO_R_PYRO_SENSE)) / 3.3 * AO_ADC_MAX))) - + /* Reply battery voltage */ + query.battery = ao_pad_decivolt(packet->adc.batt, AO_PAD_R_V_BATT_BATT_SENSE, AO_PAD_R_BATT_SENSE_GND); -#define VOLTS_TO_FIRE(x) ((int16_t) ((x) * ((1.0 * AO_FIRE_R_SENSE_GND) / \ - (1.0 * (AO_FIRE_R_SENSE_GND + AO_FIRE_R_FET_SENSE)) / 3.3 * AO_ADC_MAX))) + /* Current pyro voltage */ + pyro = ao_pad_decivolt(packet->adc.pyro, + AO_PAD_R_V_PYRO_PYRO_SENSE, + AO_PAD_R_PYRO_SENSE_GND); - /* convert ADC value to voltage in tenths, then add .2 for the diode drop */ - query.battery = (packet->adc.batt + 96) / 192 + 2; cur = 0; - if (pyro > VOLTS_TO_PYRO(10)) { + if (pyro > query.battery * 7 / 8) { query.arm_status = AO_PAD_ARM_STATUS_ARMED; cur |= AO_LED_ARMED; -#if AO_FIRE_R_POWER_FET - } else if (pyro > VOLTS_TO_PYRO(5)) { - if ((ao_time() % 100) < 50) - cur |= AO_LED_ARMED; - query.arm_status = AO_PAD_ARM_STATUS_UNKNOWN; - arm_beep_time = 0; -#endif } else { query.arm_status = AO_PAD_ARM_STATUS_DISARMED; arm_beep_time = 0; @@ -174,54 +231,50 @@ ao_pad_monitor(void) cur |= AO_LED_GREEN; for (c = 0; c < AO_PAD_NUM; c++) { - int16_t sense = packet->adc.sense[c]; + int16_t sense = ao_pad_decivolt(packet->adc.sense[c], + AO_PAD_R_IGNITER_IGNITER_SENSE, + AO_PAD_R_IGNITER_SENSE_GND); uint8_t status = AO_PAD_IGNITER_STATUS_UNKNOWN; /* - * pyro is run through a divider, so pyro = v_pyro * 27 / 127 ~= v_pyro / 20 - * v_pyro = pyro * 127 / 27 + * Here's the resistor stack on each + * igniter channel. Note that + * AO_PAD_R_V_PYRO_IGNITER is optional * - * v_pyro \ - * 100k igniter - * output / - * 100k \ - * sense relay - * 27k / - * gnd --- + * v_pyro \ + * AO_PAD_R_V_PYRO_IGNITER igniter + * output / + * AO_PAD_R_IGNITER_IGNITER_SENSE \ + * sense relay + * AO_PAD_R_IGNITER_SENSE_GND / + * gnd --- * - * v_pyro \ - * 200k igniter - * output / - * 200k \ - * sense relay - * 22k / - * gnd --- - * - * If the relay is closed, then sense will be 0 - * If no igniter is present, then sense will be v_pyro * 27k/227k = pyro * 127 / 227 ~= pyro/2 - * If igniter is present, then sense will be v_pyro * 27k/127k ~= v_pyro / 20 = pyro */ -#if AO_FIRE_R_POWER_FET +#ifdef AO_PAD_R_V_PYRO_IGNITER if (sense <= pyro / 8) { + /* close to zero → relay is closed */ status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_CLOSED; if ((ao_time() % 100) < 50) cur |= AO_LED_CONTINUITY(c); - } else - if (pyro / 8 * 3 <= sense && sense <= pyro / 8 * 5) - status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN; - else if (pyro / 8 * 7 <= sense) { - status = AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN; - cur |= AO_LED_CONTINUITY(c); - } -#else - if (sense >= pyro / 8 * 5) { - status = AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN; - cur |= AO_LED_CONTINUITY(c); - } else { - status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN; } + else #endif + { + if (sense >= (pyro * 7) / 8) { + + /* sense close to pyro voltage; igniter is good + */ + status = AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN; + cur |= AO_LED_CONTINUITY(c); + } else { + + /* relay not shorted (if we can tell), + * and igniter not obviously present + */ + status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN; + } + } query.igniter_status[c] = status; } if (cur != prev) { @@ -283,6 +336,23 @@ ao_pad_read_box(void) } #endif +#ifdef AO_PAD_SELECTOR_PORT +static int ao_pad_read_box(void) { + AO_PORT_TYPE value = ao_gpio_get_all(AO_PAD_SELECTOR_PORT); + unsigned pin; + int select = 1; + + for (pin = 0; pin < sizeof (AO_PORT_TYPE) * 8; pin++) { + if (AO_PAD_SELECTOR_PINS & (1 << pin)) { + if ((value & (1 << pin)) == 0) + return select; + select++; + } + } + return ao_config.pad_box; +} +#else + #if HAS_FIXED_PAD_BOX #define ao_pad_read_box() ao_config.pad_box #endif @@ -291,6 +361,8 @@ ao_pad_read_box(void) #define ao_pad_read_box() PAD_BOX #endif +#endif + static void ao_pad(void) { @@ -315,7 +387,7 @@ ao_pad(void) command.tick, command.box, ao_pad_box, command.cmd, command.channels); switch (command.cmd) { - case AO_LAUNCH_ARM: + case AO_PAD_ARM: if (command.box != ao_pad_box) { PRINTD ("box number mismatch\n"); break; @@ -337,7 +409,7 @@ ao_pad(void) ao_pad_arm_time = ao_time(); break; - case AO_LAUNCH_QUERY: + case AO_PAD_QUERY: if (command.box != ao_pad_box) { PRINTD ("box number mismatch\n"); break; @@ -356,11 +428,29 @@ ao_pad(void) query.igniter_status[3]); ao_radio_cmac_send(&query, sizeof (query)); break; - case AO_LAUNCH_FIRE: + case AO_PAD_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; + } + PRINTD ("ignite\n"); + ao_pad_ignite = ao_pad_armed; + ao_pad_arm_time = ao_time(); + ao_wakeup(&ao_pad_ignite); + break; + case AO_PAD_STATIC: if (!ao_pad_armed) { PRINTD ("not armed\n"); break; } +#if HAS_LOG + if (!ao_log_running) ao_log_start(); +#endif 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()); @@ -371,6 +461,11 @@ ao_pad(void) ao_pad_arm_time = ao_time(); ao_wakeup(&ao_pad_ignite); break; + case AO_PAD_ENDSTATIC: +#if HAS_LOG + ao_log_stop(); +#endif + break; } } } @@ -473,20 +568,51 @@ __code struct ao_cmds ao_pad_cmds[] = { { 0, NULL } }; +#ifndef AO_PAD_PORT_1 +#define AO_PAD_0_PORT AO_PAD_PORT +#define AO_PAD_1_PORT AO_PAD_PORT +#define AO_PAD_2_PORT AO_PAD_PORT +#define AO_PAD_3_PORT AO_PAD_PORT +#define AO_PAD_4_PORT AO_PAD_PORT +#define AO_PAD_5_PORT AO_PAD_PORT +#define AO_PAD_6_PORT AO_PAD_PORT +#define AO_PAD_7_PORT AO_PAD_PORT +#endif + void ao_pad_init(void) { +#ifdef AO_PAD_SELECTOR_PORT + unsigned pin; + + for (pin = 0; pin < sizeof (AO_PORT_TYPE) * 8; pin++) { + if (AO_PAD_SELECTOR_PINS & (1 << pin)) + ao_enable_input(AO_PAD_SELECTOR_PORT, pin, AO_EXTI_MODE_PULL_UP); + } +#endif #if AO_PAD_NUM > 0 - ao_enable_output(AO_PAD_PORT, AO_PAD_PIN_0, AO_PAD_0, 0); + ao_enable_output(AO_PAD_0_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); + ao_enable_output(AO_PAD_1_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); + ao_enable_output(AO_PAD_2_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); + ao_enable_output(AO_PAD_3_PORT, AO_PAD_PIN_3, AO_PAD_3, 0); +#endif +#if AO_PAD_NUM > 4 + ao_enable_output(AO_PAD_4_PORT, AO_PAD_PIN_4, AO_PAD_4, 0); +#endif +#if AO_PAD_NUM > 5 + ao_enable_output(AO_PAD_5_PORT, AO_PAD_PIN_5, AO_PAD_5, 0); +#endif +#if AO_PAD_NUM > 5 + ao_enable_output(AO_PAD_6_PORT, AO_PAD_PIN_6, AO_PAD_6, 0); +#endif +#if AO_PAD_NUM > 7 + ao_enable_output(AO_PAD_7_PORT, AO_PAD_PIN_7, AO_PAD_7, 0); #endif #ifdef AO_STROBE ao_enable_output(AO_STROBE_PORT, AO_STROBE_PIN, AO_STROBE, 0);