aboutsummaryrefslogtreecommitdiff
path: root/center_fw/adc.h
diff options
context:
space:
mode:
Diffstat (limited to 'center_fw/adc.h')
-rw-r--r--center_fw/adc.h96
1 files changed, 0 insertions, 96 deletions
diff --git a/center_fw/adc.h b/center_fw/adc.h
deleted file mode 100644
index 906cb7f..0000000
--- a/center_fw/adc.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/* Megumin LED display firmware
- * Copyright (C) 2018 Sebastian Götte <code@jaseg.net>
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __ADC_H__
-#define __ADC_H__
-
-#include "global.h"
-#include "8b10b.h"
-#include "protocol.h"
-
-struct adc_measurements {
- int16_t vcc_mv;
- int16_t temp_celsius_tenths;
- int16_t vmeas_a_mv;
- int16_t vmeas_b_mv;
- int16_t mean_a_mv;
- int16_t mean_b_mv;
- int16_t mean_diff_mv;
-};
-
-enum channel_mask {
- MASK_VMEAS_A = ADC_CHSELR_CHSEL0,
- MASK_VMEAS_B = ADC_CHSELR_CHSEL1
-};
-
-enum adc_mode {
- ADC_UNINITIALIZED,
- ADC_MONITOR,
- ADC_SCOPE
-};
-
-enum sampling_mode {
- SAMPLE_FAST = 0
-};
-
-/* The weird order is to match the channels' order in the DMA buffer. Due to some configuration mistake I can't be
-bothered to fix, the DMA controller outputs ADC measurements off-by-one into the output buffer. */
-enum adc_channels {
- VREF_CH,
- VMEAS_A,
- VMEAS_B,
- TEMP_CH,
- NCH
-};
-
-struct bit_detector_st {
- int hysteresis_mv;
- int sync;
- int base_interval_cycles;
- struct proto_rx_st rx_st;
- /* private stuff */
- int last_bit;
- int len_ctr;
- int committed_len_ctr;
- struct state_8b10b_dec rx8b10b;
-};
-
-struct adc_state {
- enum adc_mode adc_mode;
- int dma_isr_duration;
- struct bit_detector_st det_st;
- /* private stuff */
- uint32_t adc_aggregate[NCH]; /* oversampling accumulator */
- uint32_t mean_aggregate_ctr;
- uint32_t mean_aggregator[3];
-};
-
-extern volatile struct adc_state adc_state;
-extern volatile uint16_t adc_buf[ADC_BUFSIZE];
-extern volatile struct adc_measurements adc_data;
-
-void adc_init(void);
-void adc_configure_scope_mode(uint8_t channel_mask, int sampling_interval_ns);
-void adc_configure_monitor_mode(const struct command_if_def *cmd_if);
-
-void bit_detector(struct bit_detector_st *st, int a);
-void receive_bit(struct bit_detector_st *st, int bit);
-
-void blank(void);
-void unblank(int new_bit);
-
-#endif/*__ADC_H__*/