+++ /dev/null
-/*
- * Copyright © 2009 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; 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 "ao.h"
-
-volatile __xdata struct ao_data ao_data_ring[AO_DATA_RING];
-volatile __data uint8_t ao_data_head;
-#if (AO_DATA_ALL & ~(AO_DATA_ADC))
-volatile __data uint8_t ao_data_present;
-#endif
-
-#ifdef TELENANO_V_0_1
-# define AO_ADC_FIRST_PIN 1
-#endif
-
-#if HAS_ACCEL_REF
-# define AO_ADC_FIRST_PIN 2
-#endif
-
-#ifndef AO_ADC_FIRST_PIN
-# define AO_ADC_FIRST_PIN 0
-#endif
-
-void
-ao_adc_poll(void)
-{
- ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | AO_ADC_FIRST_PIN;
-}
-
-void
-ao_data_get(__xdata struct ao_data *packet)
-{
-#if HAS_FLIGHT
- uint8_t i = ao_data_ring_prev(ao_sample_data);
-#else
- uint8_t i = ao_data_ring_prev(ao_data_head);
-#endif
- ao_xmemcpy(packet, (void __xdata *) &ao_data_ring[i], sizeof (struct ao_data));
-}
-
-void
-ao_adc_isr(void) __interrupt 1
-{
- uint8_t sequence;
- uint8_t __xdata *a;
-
- sequence = (ADCCON2 & ADCCON2_SCH_MASK) >> ADCCON2_SCH_SHIFT;
-#if TELEMETRUM_V_0_1 || TELEMETRUM_V_0_2 || TELEMETRUM_V_1_0 || TELEMETRUM_V_1_1 || TELEMETRUM_V_1_2 || TELELAUNCH_V_0_1 || TELEBALLOON_V_1_1
- /* TeleMetrum readings */
-#if HAS_ACCEL_REF
- if (sequence == 2) {
- a = (uint8_t __xdata *) (&ao_data_ring[ao_data_head].adc.accel_ref);
- sequence = 0;
- } else
-#endif
- {
- if (sequence == ADCCON3_ECH_TEMP)
- sequence = 2;
- a = (uint8_t __xdata *) (&ao_data_ring[ao_data_head].adc.accel + sequence);
- sequence++;
- }
-#define GOT_ADC
- a[0] = ADCL;
- a[1] = ADCH;
- if (sequence < 6) {
-#if HAS_EXTERNAL_TEMP == 0
- /* start next channel conversion */
- /* v0.2 replaces external temp sensor with internal one */
- if (sequence == 2)
- ADCCON3 = ADCCON3_EREF_1_25 | ADCCON3_EDIV_512 | ADCCON3_ECH_TEMP;
- else
-#endif
- ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | sequence;
- return;
- }
-#endif
-
-#if TELEMINI_V_1_0 || TELENANO_V_0_1
- /* TeleMini readings */
- a = (uint8_t __xdata *) (&ao_data_ring[ao_data_head].adc.pres);
-#if TELEMINI_V_1_0
- switch (sequence) {
- case 0:
- /* pressure */
- a += 0;
- sequence = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 1;
- break;
- case 1:
- /* drogue sense */
- a += 6;
- sequence = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 2;
- break;
- case 2:
- /* main sense */
- a += 8;
- sequence = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 3;
- break;
- case 3:
- /* battery */
- a += 4;
- sequence = ADCCON3_EREF_1_25 | ADCCON3_EDIV_512 | ADCCON3_ECH_TEMP;
- break;
- case ADCCON3_ECH_TEMP:
- a += 2;
- sequence = 0;
- break;
- }
-#define GOT_ADC
-#endif
-#ifdef TELENANO_V_0_1
- switch (sequence) {
- case 1:
- /* pressure */
- a += 0;
- sequence = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 3;
- break;
- case 3:
- /* battery */
- a += 4;
- sequence = ADCCON3_EREF_1_25 | ADCCON3_EDIV_512 | ADCCON3_ECH_TEMP;
- break;
- case ADCCON3_ECH_TEMP:
- a += 2;
- sequence = 0;
- break;
- }
-#define GOT_ADC
-#endif
- a[0] = ADCL;
- a[1] = ADCH;
- if (sequence) {
- /* Start next conversion */
- ADCCON3 = sequence;
- return;
- }
-#endif /* telemini || telenano */
-
-#if defined(TELEFIRE_V_0_1) || defined(TELEFIRE_V_0_2)
- a = (uint8_t __xdata *) (&ao_data_ring[ao_data_head].adc.sense[0] + sequence - AO_ADC_FIRST_PIN);
- a[0] = ADCL;
- a[1] = ADCH;
- if (sequence < 5) {
- ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | (sequence + 1);
- return;
- }
-#define GOT_ADC
-#endif /* TELEFIRE_V_0_1 */
-
-#ifdef TELEBT_V_1_0
- a = (uint8_t __xdata *) (&ao_data_ring[ao_data_head].adc.batt);
- a[0] = ADCL;
- a[1] = ADCH;
-#define GOT_ADC
-#endif
-
-#ifdef FETCH_ADC
- FETCH_ADC();
-#define GOT_ADC
-#endif
-
-#ifndef GOT_ADC
-#error No known ADC configuration set
-#endif
-
- /* record this conversion series */
- ao_data_ring[ao_data_head].tick = ao_time();
- ao_data_head = ao_data_ring_next(ao_data_head);
- ao_wakeup(DATA_TO_XDATA(&ao_data_head));
-}
-
-static void
-ao_adc_dump(void) __reentrant
-{
- static __xdata struct ao_data packet;
- ao_data_get(&packet);
-#ifndef AO_ADC_DUMP
- printf("tick: %5u accel: %5d pres: %5d temp: %5d batt: %5d drogue: %5d main: %5d\n",
- packet.tick, packet.adc.accel, packet.adc.pres, packet.adc.temp,
- packet.adc.v_batt, packet.adc.sense_d, packet.adc.sense_m);
-#else
- AO_ADC_DUMP(&packet);
-#endif
-}
-
-__code struct ao_cmds ao_adc_cmds[] = {
- { ao_adc_dump, "a\0Current ADC" },
- { 0, NULL },
-};
-
-void
-ao_adc_init(void)
-{
-#ifdef AO_ADC_PINS
- ADCCFG = AO_ADC_PINS;
-
-#else
-
-#if IGNITE_ON_P2
- /* TeleMetrum configuration */
- ADCCFG = ((1 << 0) | /* acceleration */
- (1 << 1) | /* pressure */
-#if HAS_EXTERNAL_TEMP
- (1 << 2) | /* v0.1 temperature */
-#endif
- (1 << 3) | /* battery voltage */
- (1 << 4) | /* drogue sense */
- (1 << 5)); /* main sense */
-#endif
-
-#if IGNITE_ON_P0
- /* TeleMini configuration */
- ADCCFG = ((1 << 0) | /* pressure */
- (1 << 1) | /* drogue sense */
- (1 << 2) | /* main sense */
- (1 << 3)); /* battery voltage */
-#endif
-
-#endif /* else AO_ADC_PINS */
-
- /* enable interrupts */
- ADCIF = 0;
- IEN0 |= IEN0_ADCIE;
- ao_cmd_register(&ao_adc_cmds[0]);
-}
projects / fw / altos / blobdiff