diff options
Diffstat (limited to 'src/modules/px4iofirmware/controls.c')
| -rw-r--r-- | src/modules/px4iofirmware/controls.c | 91 |
1 files changed, 75 insertions, 16 deletions
diff --git a/src/modules/px4iofirmware/controls.c b/src/modules/px4iofirmware/controls.c index 185cb20dd..58c9429b6 100644 --- a/src/modules/px4iofirmware/controls.c +++ b/src/modules/px4iofirmware/controls.c @@ -41,8 +41,10 @@ #include <stdbool.h> #include <drivers/drv_hrt.h> +#include <drivers/drv_rc_input.h> #include <systemlib/perf_counter.h> #include <systemlib/ppm_decode.h> +#include <rc/st24.h> #include "px4io.h" @@ -51,11 +53,62 @@ #define RC_CHANNEL_LOW_THRESH -8000 /* 10% threshold */ static bool ppm_input(uint16_t *values, uint16_t *num_values, uint16_t *frame_len); +static bool dsm_port_input(uint16_t *rssi, bool *dsm_updated, bool *st24_updated); static perf_counter_t c_gather_dsm; static perf_counter_t c_gather_sbus; static perf_counter_t c_gather_ppm; +static int _dsm_fd; + +static uint16_t rc_value_override = 0; + +bool dsm_port_input(uint16_t *rssi, bool *dsm_updated, bool *st24_updated) +{ + perf_begin(c_gather_dsm); + uint16_t temp_count = r_raw_rc_count; + uint8_t n_bytes = 0; + uint8_t *bytes; + *dsm_updated = dsm_input(r_raw_rc_values, &temp_count, &n_bytes, &bytes); + if (*dsm_updated) { + r_raw_rc_count = temp_count & 0x7fff; + if (temp_count & 0x8000) + r_raw_rc_flags |= PX4IO_P_RAW_RC_FLAGS_RC_DSM11; + else + r_raw_rc_flags &= ~PX4IO_P_RAW_RC_FLAGS_RC_DSM11; + + r_raw_rc_flags &= ~(PX4IO_P_RAW_RC_FLAGS_FRAME_DROP); + r_raw_rc_flags &= ~(PX4IO_P_RAW_RC_FLAGS_FAILSAFE); + + } + perf_end(c_gather_dsm); + + /* get data from FD and attempt to parse with DSM and ST24 libs */ + uint8_t st24_rssi, rx_count; + uint16_t st24_channel_count = 0; + + *st24_updated = false; + + for (unsigned i = 0; i < n_bytes; i++) { + /* set updated flag if one complete packet was parsed */ + st24_rssi = RC_INPUT_RSSI_MAX; + *st24_updated |= (OK == st24_decode(bytes[i], &st24_rssi, &rx_count, + &st24_channel_count, r_raw_rc_values, PX4IO_RC_INPUT_CHANNELS)); + } + + if (*st24_updated) { + + *rssi = st24_rssi; + r_raw_rc_count = st24_channel_count; + + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_ST24; + r_raw_rc_flags &= ~(PX4IO_P_RAW_RC_FLAGS_FRAME_DROP); + r_raw_rc_flags &= ~(PX4IO_P_RAW_RC_FLAGS_FAILSAFE); + } + + return (*dsm_updated | *st24_updated); +} + void controls_init(void) { @@ -65,7 +118,7 @@ controls_init(void) system_state.rc_channels_timestamp_valid = 0; /* DSM input (USART1) */ - dsm_init("/dev/ttyS0"); + _dsm_fd = dsm_init("/dev/ttyS0"); /* S.bus input (USART3) */ sbus_init("/dev/ttyS2"); @@ -116,19 +169,13 @@ controls_tick() { #endif perf_begin(c_gather_dsm); - uint16_t temp_count = r_raw_rc_count; - bool dsm_updated = dsm_input(r_raw_rc_values, &temp_count); + bool dsm_updated, st24_updated; + (void)dsm_port_input(&rssi, &dsm_updated, &st24_updated); if (dsm_updated) { - r_raw_rc_flags |= PX4IO_P_STATUS_FLAGS_RC_DSM; - r_raw_rc_count = temp_count & 0x7fff; - if (temp_count & 0x8000) - r_raw_rc_flags |= PX4IO_P_RAW_RC_FLAGS_RC_DSM11; - else - r_raw_rc_flags &= ~PX4IO_P_RAW_RC_FLAGS_RC_DSM11; - - r_raw_rc_flags &= ~(PX4IO_P_RAW_RC_FLAGS_FRAME_DROP); - r_raw_rc_flags &= ~(PX4IO_P_RAW_RC_FLAGS_FAILSAFE); - + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_DSM; + } + if (st24_updated) { + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_ST24; } perf_end(c_gather_dsm); @@ -191,7 +238,7 @@ controls_tick() { /* * If we received a new frame from any of the RC sources, process it. */ - if (dsm_updated || sbus_updated || ppm_updated) { + if (dsm_updated || sbus_updated || ppm_updated || st24_updated) { /* record a bitmask of channels assigned */ unsigned assigned_channels = 0; @@ -278,6 +325,9 @@ controls_tick() { r_rc_values[mapped] = SIGNED_TO_REG(scaled); assigned_channels |= (1 << mapped); + } else if (mapped == PX4IO_P_RC_CONFIG_ASSIGNMENT_MODESWITCH) { + /* pick out override channel, indicated by special mapping */ + rc_value_override = SIGNED_TO_REG(scaled); } } } @@ -371,15 +421,24 @@ controls_tick() { * requested override. * */ - if ((r_status_flags & PX4IO_P_STATUS_FLAGS_RC_OK) && (REG_TO_SIGNED(r_rc_values[4]) < RC_CHANNEL_LOW_THRESH)) + if ((r_status_flags & PX4IO_P_STATUS_FLAGS_RC_OK) && (REG_TO_SIGNED(rc_value_override) < RC_CHANNEL_LOW_THRESH)) override = true; + /* + if the FMU is dead then enable override if we have a + mixer and OVERRIDE_IMMEDIATE is set + */ + if (!(r_status_flags & PX4IO_P_STATUS_FLAGS_FMU_OK) && + (r_setup_arming & PX4IO_P_SETUP_ARMING_OVERRIDE_IMMEDIATE) && + (r_status_flags & PX4IO_P_STATUS_FLAGS_MIXER_OK)) + override = true; + if (override) { r_status_flags |= PX4IO_P_STATUS_FLAGS_OVERRIDE; /* mix new RC input control values to servos */ - if (dsm_updated || sbus_updated || ppm_updated) + if (dsm_updated || sbus_updated || ppm_updated || st24_updated) mixer_tick(); } else { |