118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBSIGROK_HARDWARE_OPENBENCH_LOGIC_SNIFFER_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_OPENBENCH_LOGIC_SNIFFER_PROTOCOL_H
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#include <stdint.h>
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#include <string.h>
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#include <glib.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "ols"
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#define NUM_PROBES 32
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#define NUM_TRIGGER_STAGES 4
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#define TRIGGER_TYPE "01"
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#define SERIAL_SPEED B115200
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#define CLOCK_RATE SR_MHZ(100)
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#define MIN_NUM_SAMPLES 4
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#define DEFAULT_SAMPLERATE SR_KHZ(200)
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/* Command opcodes */
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#define CMD_RESET 0x00
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#define CMD_RUN 0x01
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#define CMD_TESTMODE 0x03
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#define CMD_ID 0x02
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#define CMD_METADATA 0x04
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#define CMD_SET_FLAGS 0x82
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#define CMD_SET_DIVIDER 0x80
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#define CMD_CAPTURE_SIZE 0x81
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#define CMD_SET_TRIGGER_MASK 0xc0
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#define CMD_SET_TRIGGER_VALUE 0xc1
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#define CMD_SET_TRIGGER_CONFIG 0xc2
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/* Trigger config */
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#define TRIGGER_START (1 << 3)
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/* Bitmasks for CMD_FLAGS */
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/* 12-13 unused, 14-15 RLE mode (we hardcode mode 0). */
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#define FLAG_INTERNAL_TEST_MODE (1 << 11)
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#define FLAG_EXTERNAL_TEST_MODE (1 << 10)
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#define FLAG_SWAP_PROBES (1 << 9)
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#define FLAG_RLE (1 << 8)
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#define FLAG_SLOPE_FALLING (1 << 7)
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#define FLAG_CLOCK_EXTERNAL (1 << 6)
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#define FLAG_CHANNELGROUP_4 (1 << 5)
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#define FLAG_CHANNELGROUP_3 (1 << 4)
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#define FLAG_CHANNELGROUP_2 (1 << 3)
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#define FLAG_CHANNELGROUP_1 (1 << 2)
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#define FLAG_FILTER (1 << 1)
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#define FLAG_DEMUX (1 << 0)
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/* Private, per-device-instance driver context. */
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struct dev_context {
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/* Fixed device settings */
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int max_probes;
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uint32_t max_samples;
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uint32_t max_samplerate;
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uint32_t protocol_version;
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/* Acquisition settings */
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uint64_t cur_samplerate;
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uint32_t cur_samplerate_divider;
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uint64_t limit_samples;
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int capture_ratio;
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int trigger_at;
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uint32_t probe_mask;
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uint32_t trigger_mask[4];
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uint32_t trigger_value[4];
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int num_stages;
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uint16_t flag_reg;
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/* Operational states */
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unsigned int num_transfers;
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unsigned int num_samples;
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int num_bytes;
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/* Temporary variables */
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unsigned int rle_count;
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unsigned char sample[4];
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unsigned char tmp_sample[4];
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unsigned char *raw_sample_buf;
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};
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SR_PRIV extern const char *ols_probe_names[NUM_PROBES + 1];
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SR_PRIV int send_shortcommand(struct sr_serial_dev_inst *serial,
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uint8_t command);
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SR_PRIV int send_longcommand(struct sr_serial_dev_inst *serial,
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uint8_t command, uint8_t *data);
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SR_PRIV int ols_configure_probes(const struct sr_dev_inst *sdi);
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SR_PRIV struct dev_context *ols_dev_new(void);
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SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial);
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SR_PRIV int ols_set_samplerate(const struct sr_dev_inst *sdi,
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uint64_t samplerate);
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SR_PRIV void abort_acquisition(const struct sr_dev_inst *sdi);
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SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data);
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#endif
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