115 lines
3.4 KiB
C
115 lines
3.4 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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* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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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_FX2LAFW_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H
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#include <glib.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libusb.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "fx2lafw"
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#define USB_INTERFACE 0
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#define USB_CONFIGURATION 1
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#define NUM_TRIGGER_STAGES 4
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#define TRIGGER_TYPE "01"
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#define MAX_RENUM_DELAY_MS 3000
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#define NUM_SIMUL_TRANSFERS 32
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#define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2)
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#define FX2LAFW_REQUIRED_VERSION_MAJOR 1
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#define MAX_8BIT_SAMPLE_RATE SR_MHZ(24)
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#define MAX_16BIT_SAMPLE_RATE SR_MHZ(12)
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/* 6 delay states of up to 256 clock ticks */
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#define MAX_SAMPLE_DELAY (6 * 256)
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/* Software trigger implementation: positive values indicate trigger stage. */
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#define TRIGGER_FIRED -1
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#define DEV_CAPS_16BIT_POS 0
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#define DEV_CAPS_16BIT (1 << DEV_CAPS_16BIT_POS)
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struct fx2lafw_profile {
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uint16_t vid;
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uint16_t pid;
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const char *vendor;
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const char *model;
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const char *model_version;
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const char *firmware;
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uint32_t dev_caps;
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};
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struct dev_context {
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const struct fx2lafw_profile *profile;
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/*
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* Since we can't keep track of an fx2lafw device after upgrading
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* the firmware (it renumerates into a different device address
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* after the upgrade) this is like a global lock. No device will open
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* until a proper delay after the last device was upgraded.
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*/
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int64_t fw_updated;
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/* Device/capture settings */
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uint64_t cur_samplerate;
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uint64_t limit_samples;
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/* Operational settings */
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gboolean sample_wide;
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uint16_t trigger_mask[NUM_TRIGGER_STAGES];
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uint16_t trigger_value[NUM_TRIGGER_STAGES];
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int trigger_stage;
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uint16_t trigger_buffer[NUM_TRIGGER_STAGES];
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int num_samples;
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int submitted_transfers;
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int empty_transfer_count;
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void *cb_data;
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unsigned int num_transfers;
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struct libusb_transfer **transfers;
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struct sr_context *ctx;
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};
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SR_PRIV int fx2lafw_command_start_acquisition(libusb_device_handle *devhdl,
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uint64_t samplerate, gboolean samplewide);
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SR_PRIV gboolean fx2lafw_check_conf_profile(libusb_device *dev);
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SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di);
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SR_PRIV int fx2lafw_configure_channels(const struct sr_dev_inst *sdi);
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SR_PRIV struct dev_context *fx2lafw_dev_new(void);
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SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc);
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SR_PRIV void fx2lafw_receive_transfer(struct libusb_transfer *transfer);
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SR_PRIV size_t fx2lafw_get_buffer_size(struct dev_context *devc);
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SR_PRIV unsigned int fx2lafw_get_number_of_transfers(struct dev_context *devc);
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SR_PRIV unsigned int fx2lafw_get_timeout(struct dev_context *devc);
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#endif
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