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Allow the setup flags to control the S.BUS / RSSI port instead of doing some wild, likely incorrect, guesses.

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This commit is contained in:
Lorenz Meier 2014-01-26 14:13:57 +01:00
parent a737a2a406
commit 16eb68f2e9
2 changed files with 49 additions and 16 deletions
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21
src/modules/px4iofirmware/controls.c
View File

@ -98,13 +98,15 @@ controls_tick() {
uint16_t rssi = 0;
#ifdef ADC_RSSI
unsigned counts = adc_measure(ADC_RSSI);
if (counts != 0xffff) {
/* use 1:1 scaling on 3.3V ADC input */
unsigned mV = counts * 3300 / 4096;
if (r_setup_features & PX4IO_P_SETUP_FEATURES_ADC_RSSI) {
unsigned counts = adc_measure(ADC_RSSI);
if (counts != 0xffff) {
/* use 1:1 scaling on 3.3V ADC input */
unsigned mV = counts * 3300 / 4096;
/* scale to 0..253 */
rssi = mV / 13;
/* scale to 0..253 */
rssi = mV / 13;
}
}
#endif
@ -150,13 +152,6 @@ controls_tick() {
}
/* switch S.Bus output pin as needed */
if (sbus_status != (r_status_flags & PX4IO_P_STATUS_FLAGS_RC_SBUS)) {
#ifdef ENABLE_SBUS_OUT
ENABLE_SBUS_OUT((r_status_flags & PX4IO_P_STATUS_FLAGS_RC_SBUS));
#endif
}
perf_end(c_gather_sbus);
/*

44
src/modules/px4iofirmware/registers.c
View File

@ -148,7 +148,12 @@ uint16_t r_page_scratch[32];
*/
volatile uint16_t r_page_setup[] =
{
#ifdef CONFIG_ARCH_BOARD_PX4IO_V2
/* default to RSSI ADC functionality */
[PX4IO_P_SETUP_FEATURES] = PX4IO_P_SETUP_FEATURES_ADC_RSSI,
#else
[PX4IO_P_SETUP_FEATURES] = 0,
#endif
[PX4IO_P_SETUP_ARMING] = 0,
[PX4IO_P_SETUP_PWM_RATES] = 0,
[PX4IO_P_SETUP_PWM_DEFAULTRATE] = 50,
@ -166,7 +171,14 @@ volatile uint16_t r_page_setup[] =
[PX4IO_P_SETUP_CRC ... (PX4IO_P_SETUP_CRC+1)] = 0,
};
#define PX4IO_P_SETUP_FEATURES_VALID (0)
#ifdef CONFIG_ARCH_BOARD_PX4IO_V2
#define PX4IO_P_SETUP_FEATURES_VALID (PX4IO_P_SETUP_FEATURES_SBUS1_OUT | \
PX4IO_P_SETUP_FEATURES_SBUS2_OUT | \
PX4IO_P_SETUP_FEATURES_ADC_RSSI | \
PX4IO_P_SETUP_FEATURES_PWM_RSSI)
#else
#define PX4IO_P_SETUP_FEATURES_VALID 0
#endif
#define PX4IO_P_SETUP_ARMING_VALID (PX4IO_P_SETUP_ARMING_FMU_ARMED | \
PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK | \
PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK | \
@ -442,9 +454,35 @@ registers_set_one(uint8_t page, uint8_t offset, uint16_t value)
case PX4IO_P_SETUP_FEATURES:
value &= PX4IO_P_SETUP_FEATURES_VALID;
r_setup_features = value;
/* no implemented feature selection at this point */
/* some of the options conflict - give S.BUS out precedence, then ADC RSSI, then PWM RSSI */
/* switch S.Bus output pin as needed */
#ifdef ENABLE_SBUS_OUT
ENABLE_SBUS_OUT(value & (PX4IO_P_SETUP_FEATURES_SBUS1_OUT | PX4IO_P_SETUP_FEATURES_SBUS2_OUT));
/* disable the conflicting options */
if (value & (PX4IO_P_SETUP_FEATURES_SBUS1_OUT | PX4IO_P_SETUP_FEATURES_SBUS2_OUT)) {
value &= ~(PX4IO_P_SETUP_FEATURES_PWM_RSSI | PX4IO_P_SETUP_FEATURES_ADC_RSSI);
}
#endif
/* disable the conflicting options with ADC RSSI */
if (value & (PX4IO_P_SETUP_FEATURES_ADC_RSSI)) {
value &= ~(PX4IO_P_SETUP_FEATURES_PWM_RSSI |
PX4IO_P_SETUP_FEATURES_SBUS1_OUT |
PX4IO_P_SETUP_FEATURES_SBUS2_OUT);
}
/* disable the conflicting options with PWM RSSI (without effect here, but for completeness) */
if (value & (PX4IO_P_SETUP_FEATURES_PWM_RSSI)) {
value &= ~(PX4IO_P_SETUP_FEATURES_ADC_RSSI |
PX4IO_P_SETUP_FEATURES_SBUS1_OUT |
PX4IO_P_SETUP_FEATURES_SBUS2_OUT);
}
/* apply changes */
r_setup_features = value;
break;