127 lines
4.3 KiB
C
127 lines
4.3 KiB
C
/*
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* This file is part of the sigrok 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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/* Message logging helpers with driver-specific prefix string. */
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#define DRIVER_LOG_DOMAIN "ols: "
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#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
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#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
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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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/* Command opcodes */
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#define CMD_RESET 0x00
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#define CMD_RUN 0x01
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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_0 0xc0
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#define CMD_SET_TRIGGER_MASK_1 0xc4
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#define CMD_SET_TRIGGER_MASK_2 0xc8
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#define CMD_SET_TRIGGER_MASK_3 0xcc
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#define CMD_SET_TRIGGER_VALUE_0 0xc1
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#define CMD_SET_TRIGGER_VALUE_1 0xc5
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#define CMD_SET_TRIGGER_VALUE_2 0xc9
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#define CMD_SET_TRIGGER_VALUE_3 0xcd
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#define CMD_SET_TRIGGER_CONFIG_0 0xc2
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#define CMD_SET_TRIGGER_CONFIG_1 0xc6
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#define CMD_SET_TRIGGER_CONFIG_2 0xca
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#define CMD_SET_TRIGGER_CONFIG_3 0xce
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/* Bitmasks for CMD_FLAGS */
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#define FLAG_DEMUX 0x01
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#define FLAG_FILTER 0x02
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#define FLAG_CHANNELGROUP_1 0x04
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#define FLAG_CHANNELGROUP_2 0x08
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#define FLAG_CHANNELGROUP_3 0x10
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#define FLAG_CHANNELGROUP_4 0x20
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#define FLAG_CLOCK_EXTERNAL 0x40
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#define FLAG_CLOCK_INVERTED 0x80
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#define FLAG_RLE 0x0100
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/* Private, per-device-instance driver context. */
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struct dev_context {
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uint32_t max_samplerate;
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uint32_t max_samples;
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uint32_t protocol_version;
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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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/* Current state of the flag register */
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uint32_t flag_reg;
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/* Pre/post trigger capture ratio, in percentage.
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* 0 means no pre-trigger data. */
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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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unsigned int num_transfers;
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unsigned int num_samples;
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int rle_count;
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int num_bytes;
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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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struct sr_serial_dev_inst *serial;
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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, uint32_t data);
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SR_PRIV int ols_configure_probes(const struct sr_dev_inst *sdi);
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SR_PRIV uint32_t reverse16(uint32_t in);
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SR_PRIV uint32_t reverse32(uint32_t in);
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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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