--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Marc Schink <sigrok-dev@marcschink.de>
+ *
+ * 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 LIBSIGROK_HARDWARE_IKALOGIC_SCANALOGIC2_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_IKALOGIC_SCANALOGIC2_PROTOCOL_H
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <glib.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "ikalogic-scanalogic2"
+
+#define VENDOR_NAME "IKALOGIC"
+#define MODEL_NAME "Scanalogic-2"
+
+#define USB_VID_PID "20a0.4123"
+#define USB_INTERFACE 0
+#define USB_TIMEOUT 5000
+
+#define USB_REQUEST_TYPE_IN (LIBUSB_REQUEST_TYPE_CLASS | \
+ LIBUSB_RECIPIENT_INTERFACE | LIBUSB_ENDPOINT_IN)
+
+#define USB_REQUEST_TYPE_OUT (LIBUSB_REQUEST_TYPE_CLASS | \
+ LIBUSB_RECIPIENT_INTERFACE | LIBUSB_ENDPOINT_OUT)
+
+#define USB_HID_GET_REPORT 0x01
+#define USB_HID_SET_REPORT 0x09
+#define USB_HID_REPORT_TYPE_FEATURE 0x300
+
+#define NUM_SAMPLERATES 11
+#define NUM_CHANNELS 4
+
+/*
+ * Number of sample bytes and samples the device can acquire. Note that the
+ * vendor software can acquire 32736 sample bytes only but the device is capable
+ * to acquire up to 32766 sample bytes.
+ */
+#define MAX_DEV_SAMPLE_BYTES 32766
+#define MAX_DEV_SAMPLES (MAX_INT_SAMPLE_BYTES * 8)
+
+/* Number of sample bytes and samples the driver can acquire. */
+#define MAX_SAMPLE_BYTES (MAX_DEV_SAMPLE_BYTES - 1)
+#define MAX_SAMPLES (MAX_SAMPLE_BYTES * 8)
+
+/* Maximum time that the trigger can be delayed in milliseconds. */
+#define MAX_AFTER_TRIGGER_DELAY 65000
+
+#define PACKET_LENGTH 128
+
+/* Number of sample bytes per packet where a sample byte contains 8 samples. */
+#define PACKET_NUM_SAMPLE_BYTES 124
+
+/* Number of samples per packet. */
+#define PACKET_NUM_SAMPLES (PACKET_NUM_SAMPLE_BYTES * 8)
+
+#define DEFAULT_SAMPLERATE SR_KHZ(1.25)
+
+/*
+ * Time interval between the last status of available data received and the
+ * moment when the next status request will be sent in microseconds.
+ */
+#define WAIT_DATA_READY_INTERVAL 1500000
+
+#define CMD_SAMPLE 0x01
+#define CMD_RESET 0x02
+#define CMD_IDLE 0x07
+#define CMD_INFO 0x0a
+
+#define TRIGGER_CHANNEL_ALL 0x00
+#define TRIGGER_CHANNEL_0 0x01
+#define TRIGGER_CHANNEL_1 0x02
+#define TRIGGER_CHANNEL_2 0x03
+
+#define TRIGGER_TYPE_NEGEDGE 0x00
+#define TRIGGER_TYPE_POSEDGE 0x01
+#define TRIGGER_TYPE_ANYEDGE 0x02
+#define TRIGGER_TYPE_NONE 0x03
+
+#define STATUS_DATA_READY 0x60
+#define STATUS_WAITING_FOR_TRIGGER 0x61
+#define STATUS_SAMPLING 0x62
+#define STATUS_DEVICE_READY 0x63
+
+struct device_info {
+ /* Serial number of the device. */
+ uint32_t serial;
+
+ /* Major version of the firmware. */
+ uint8_t fw_ver_major;
+
+ /* Minor version of the firmware. */
+ uint8_t fw_ver_minor;
+};
+
+enum {
+ STATE_IDLE = 0,
+ STATE_SAMPLE,
+ STATE_WAIT_DATA_READY,
+ STATE_RECEIVE_DATA,
+ STATE_RESET_AND_IDLE,
+ STATE_WAIT_DEVICE_READY
+};
+
+/** Private, per-device-instance driver context. */
+struct dev_context {
+ /* Current selected samplerate. */
+ uint64_t samplerate;
+
+ /* Device specific identifier for the current samplerate. */
+ uint8_t samplerate_id;
+
+ /* Current sampling limit. */
+ uint64_t limit_samples;
+
+ /* Calculated number of pre-trigger samples. */
+ uint64_t pre_trigger_samples;
+
+ /* Number of pre- and post-trigger sample bytes to acquire. */
+ uint16_t pre_trigger_bytes;
+ uint16_t post_trigger_bytes;
+
+ /* Device specific settings for the trigger. */
+ uint8_t trigger_channel;
+ uint8_t trigger_type;
+
+ unsigned int capture_ratio;
+
+ /* Time that the trigger will be delayed in milliseconds. */
+ uint16_t after_trigger_delay;
+
+ void *cb_data;
+
+ /* Array to provide an index based access to all channels. */
+ const struct sr_channel *channels[NUM_CHANNELS];
+
+ struct libusb_transfer *xfer_in, *xfer_out;
+
+ /*
+ * Buffer to store setup and payload data for incoming and outgoing
+ * transfers.
+ */
+ uint8_t xfer_buf_in[LIBUSB_CONTROL_SETUP_SIZE + PACKET_LENGTH];
+ uint8_t xfer_buf_out[LIBUSB_CONTROL_SETUP_SIZE + PACKET_LENGTH];
+
+ /* Pointers to the payload of incoming and outgoing transfers. */
+ uint8_t *xfer_data_in, *xfer_data_out;
+
+ /* Current state of the state machine */
+ unsigned int state;
+
+ /* Next state of the state machine. */
+ unsigned int next_state;
+
+ /*
+ * Locking variable to ensure that no status about available data will
+ * be requested until the last status was received.
+ */
+ gboolean wait_data_ready_locked;
+
+ /*
+ * Time when the last response about the status of available data was
+ * received.
+ */
+ int64_t wait_data_ready_time;
+
+ /*
+ * Indicates that stopping of the acquisition is currently in progress.
+ */
+ gboolean stopping_in_progress;
+
+ /*
+ * Buffer which contains the samples received from the device for each
+ * channel except the last one. The samples of the last channel will be
+ * processed directly after they will be received.
+ */
+ uint8_t sample_buffer[NUM_CHANNELS - 1][MAX_DEV_SAMPLE_BYTES];
+
+ /* Expected number of sample packets for each channel. */
+ uint16_t num_sample_packets;
+
+ /* Number of samples already processed. */
+ uint64_t samples_processed;
+
+ /* Sample packet number that is currently processed. */
+ uint16_t sample_packet;
+
+ /* Channel number that is currently processed. */
+ uint8_t channel;
+
+ /* Number of enabled channels. */
+ unsigned int num_enabled_channels;
+
+ /* Array to provide a sequential access to all enabled channel indices. */
+ uint8_t channel_map[NUM_CHANNELS];
+
+ /* Indicates whether a transfer failed. */
+ gboolean transfer_error;
+};
+
+SR_PRIV int ikalogic_scanalogic2_receive_data(int fd, int revents, void *cb_data);
+SR_PRIV void sl2_receive_transfer_in(struct libusb_transfer *transfer);
+SR_PRIV void sl2_receive_transfer_out(struct libusb_transfer *transfer);
+SR_PRIV int sl2_set_samplerate(const struct sr_dev_inst *sdi,
+ uint64_t samplerate);
+SR_PRIV int sl2_set_limit_samples(const struct sr_dev_inst *sdi,
+ uint64_t limit_samples);
+SR_PRIV int sl2_convert_trigger(const struct sr_dev_inst *sdi);
+SR_PRIV int sl2_set_capture_ratio(const struct sr_dev_inst *sdi,
+ uint64_t capture_ratio);
+SR_PRIV int sl2_set_after_trigger_delay(const struct sr_dev_inst *sdi,
+ uint64_t after_trigger_delay);
+SR_PRIV void sl2_calculate_trigger_samples(const struct sr_dev_inst *sdi);
+SR_PRIV int sl2_get_device_info(struct sr_usb_dev_inst usb,
+ struct device_info *dev_info);
+SR_PRIV int sl2_transfer_in(libusb_device_handle *dev_handle, uint8_t *data);
+SR_PRIV int sl2_transfer_out(libusb_device_handle *dev_handle, uint8_t *data);
+
+#endif
projects / libsigrok.git / blobdiff