18  * Ensure that the size of the generic header aligns with the sensor channel specifier . If it
64  * @brief Compute the required header size
66  * This function takes into account alignment of the q31 values that will follow the header.
69  * @return The number of bytes needed for this sample frame's header
90  * @brief Checks if the header already contains a given channel
92  * @param[in] header The header to scan
94  * @param[in] num_channels The number of valid channels in the header so far
97 static inline int check_header_contains_channel(const struct sensor_data_generic_header *header,  in check_header_contains_channel()  argument
103 		if (sensor_chan_spec_eq(header->channels[i], chan_spec)) {  in check_header_contains_channel()
143 	struct sensor_data_generic_header *header = (struct sensor_data_generic_header *)buf;  in sensor_submit_fallback_sync()  local
145 	header->timestamp_ns = timestamp_ns;  in sensor_submit_fallback_sync()
146 	header->num_channels = num_output_samples;  in sensor_submit_fallback_sync()
147 	header->shift = 0;  in sensor_submit_fallback_sync()
160 			header->channels[sample_idx++] = (struct sensor_chan_spec) {  in sensor_submit_fallback_sync()
164 			header->channels[sample_idx++] = (struct sensor_chan_spec) {  in sensor_submit_fallback_sync()
168 			header->channels[sample_idx++] = (struct sensor_chan_spec) {  in sensor_submit_fallback_sync()
173 			header->channels[sample_idx++] = (struct sensor_chan_spec) {  in sensor_submit_fallback_sync()
208 		if (header->shift < new_shift) {  in sensor_submit_fallback_sync()
215 				q[q_idx] = q[q_idx] >> (new_shift - header->shift);  in sensor_submit_fallback_sync()
217 			header->shift = new_shift;  in sensor_submit_fallback_sync()
228 				header, header->channels[sample_idx + sample], sample_idx + sample);  in sensor_submit_fallback_sync()
244 				((value_u * ((INT64_C(1) << 31) - 1)) / 1000000) >> header->shift;  in sensor_submit_fallback_sync()
250 				q[sample_idx + sample], header->shift);  in sensor_submit_fallback_sync()
254 	LOG_DBG("Total channels in header: %" PRIu32, header->num_channels);  in sensor_submit_fallback_sync()
317 	struct sensor_data_generic_header *header = (struct sensor_data_generic_header *)buffer;  in get_frame_count()  local
335 	for (size_t i = 0; i < header->num_channels; ++i) {  in get_frame_count()
336 		if (sensor_chan_spec_eq(header->channels[i], channel)) {  in get_frame_count()
390 static int get_q31_value(const struct sensor_data_generic_header *header, const q31_t *values,  in get_q31_value()  argument
393 	for (size_t i = 0; i < header->num_channels; ++i) {  in get_q31_value()
394 		if (sensor_chan_spec_eq(chan_spec, header->channels[i])) {  in get_q31_value()
402 static int decode_three_axis(const struct sensor_data_generic_header *header, const q31_t *values,  in decode_three_axis()  argument
408 	data_out->header.base_timestamp_ns = header->timestamp_ns;  in decode_three_axis()
409 	data_out->header.reading_count = 1;  in decode_three_axis()
410 	data_out->shift = header->shift;  in decode_three_axis()
413 	rc = get_q31_value(header, values, (struct sensor_chan_spec){x, channel_idx},  in decode_three_axis()
418 	rc = get_q31_value(header, values, (struct sensor_chan_spec){y, channel_idx},  in decode_three_axis()
423 	rc = get_q31_value(header, values, (struct sensor_chan_spec){z, channel_idx},  in decode_three_axis()
431 static int decode_q31(const struct sensor_data_generic_header *header, const q31_t *values,  in decode_q31()  argument
436 	data_out->header.base_timestamp_ns = header->timestamp_ns;  in decode_q31()
437 	data_out->header.reading_count = 1;  in decode_q31()
438 	data_out->shift = header->shift;  in decode_q31()
441 	rc = get_q31_value(header, values, chan_spec, &data_out->readings[0].value);  in decode_q31()
468 	const struct sensor_data_generic_header *header =  in decode()  local
470 	const q31_t *q = (const q31_t *)(buffer + compute_header_size(header->num_channels));  in decode()
487 		count = decode_three_axis(header, q, data_out, SENSOR_CHAN_ACCEL_X,  in decode()
495 		count = decode_three_axis(header, q, data_out, SENSOR_CHAN_GYRO_X,  in decode()
503 		count = decode_three_axis(header, q, data_out, SENSOR_CHAN_MAGN_X,  in decode()
511 		count = decode_three_axis(header, q, data_out, SENSOR_CHAN_POS_DX,  in decode()
516 		count = decode_q31(header, q, data_out, chan_spec);  in decode()