135 lines
3.8 KiB
C
135 lines
3.8 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/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 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 NUM_CHANNELS 16
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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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#define DEV_CAPS_16BIT_POS 0
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#define DEV_CAPS_AX_ANALOG_POS 1
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#define DEV_CAPS_16BIT (1 << DEV_CAPS_16BIT_POS)
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#define DEV_CAPS_AX_ANALOG (1 << DEV_CAPS_AX_ANALOG_POS)
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/* Protocol commands */
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#define CMD_GET_FW_VERSION 0xb0
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#define CMD_START 0xb1
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#define CMD_GET_REVID_VERSION 0xb2
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#define CMD_START_FLAGS_CLK_CTL2_POS 4
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#define CMD_START_FLAGS_WIDE_POS 5
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#define CMD_START_FLAGS_CLK_SRC_POS 6
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#define CMD_START_FLAGS_CLK_CTL2 (1 << CMD_START_FLAGS_CLK_CTL2_POS)
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#define CMD_START_FLAGS_SAMPLE_8BIT (0 << CMD_START_FLAGS_WIDE_POS)
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#define CMD_START_FLAGS_SAMPLE_16BIT (1 << CMD_START_FLAGS_WIDE_POS)
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#define CMD_START_FLAGS_CLK_30MHZ (0 << CMD_START_FLAGS_CLK_SRC_POS)
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#define CMD_START_FLAGS_CLK_48MHZ (1 << CMD_START_FLAGS_CLK_SRC_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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const char *usb_manufacturer;
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const char *usb_product;
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};
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struct dev_context {
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const struct fx2lafw_profile *profile;
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GSList *enabled_analog_channels;
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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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/* Supported samplerates */
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const uint64_t *samplerates;
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int num_samplerates;
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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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uint64_t capture_ratio;
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/* Operational settings */
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gboolean trigger_fired;
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gboolean acq_aborted;
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gboolean sample_wide;
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struct soft_trigger_logic *stl;
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unsigned int sent_samples;
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int submitted_transfers;
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int empty_transfer_count;
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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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void (*send_data_proc)(struct sr_dev_inst *sdi,
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uint8_t *data, size_t length, size_t sample_width);
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uint8_t *logic_buffer;
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float *analog_buffer;
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};
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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 struct dev_context *fx2lafw_dev_new(void);
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SR_PRIV int fx2lafw_start_acquisition(const struct sr_dev_inst *sdi);
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SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc);
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#endif
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