diff options
Diffstat (limited to 'src/ao_adc.c')
| -rw-r--r-- | src/ao_adc.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/src/ao_adc.c b/src/ao_adc.c deleted file mode 100644 index 786dfd11..00000000 --- a/src/ao_adc.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * 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; 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_pins.h" - -volatile __xdata struct ao_adc ao_adc_ring[AO_ADC_RING]; -#if HAS_ACCEL_REF -volatile __xdata uint16_t ao_accel_ref[AO_ADC_RING]; -#endif -volatile __data uint8_t ao_adc_head; - -void -ao_adc_poll(void) -{ -#if HAS_ACCEL_REF - ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 2; -#else -# ifdef TELENANO_V_0_1 - ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 1; -# else - ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | 0; -# endif -#endif -} - -void -ao_adc_get(__xdata struct ao_adc *packet) -{ - uint8_t i = ao_adc_ring_prev(ao_sample_adc); - memcpy(packet, &ao_adc_ring[i], sizeof (struct ao_adc)); -} - -void -ao_adc_isr(void) __interrupt 1 -{ - uint8_t sequence; - uint8_t __xdata *a; - - sequence = (ADCCON2 & ADCCON2_SCH_MASK) >> ADCCON2_SCH_SHIFT; -#if IGNITE_ON_P2 - /* TeleMetrum readings */ -#if HAS_ACCEL_REF - if (sequence == 2) { - a = (uint8_t __xdata *) (&ao_accel_ref[ao_adc_head]); - sequence = 0; - } else -#endif - { - if (sequence == ADCCON3_ECH_TEMP) - sequence = 2; - a = (uint8_t __xdata *) (&ao_adc_ring[ao_adc_head].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; - } -#endif - -#if IGNITE_ON_P0 - /* TeleMini readings */ - a = (uint8_t __xdata *) (&ao_adc_ring[ao_adc_head].pres); -#ifdef 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; - } -#endif -#ifndef GOT_ADC -#error No known ADC configuration set -#endif - - else { - /* record this conversion series */ - ao_adc_ring[ao_adc_head].tick = ao_time(); - ao_adc_head = ao_adc_ring_next(ao_adc_head); - ao_wakeup(DATA_TO_XDATA(&ao_adc_head)); - } -} - -static void -ao_adc_dump(void) __reentrant -{ - static __xdata struct ao_adc packet; - ao_adc_get(&packet); - printf("tick: %5u accel: %5d pres: %5d temp: %5d batt: %5d drogue: %5d main: %5d\n", - packet.tick, packet.accel, packet.pres, packet.temp, - packet.v_batt, packet.sense_d, packet.sense_m); -} - -__code struct ao_cmds ao_adc_cmds[] = { - { ao_adc_dump, "a\0Current ADC" }, - { 0, NULL }, -}; - -void -ao_adc_init(void) -{ -#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 - - /* enable interrupts */ - ADCIF = 0; - IEN0 |= IEN0_ADCIE; - ao_cmd_register(&ao_adc_cmds[0]); -} |