2013-07-21 10:30:32 +00:00
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/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
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2013-08-05 10:05:40 +00:00
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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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2013-07-21 10:30:32 +00:00
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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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2013-07-31 14:53:35 +00:00
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#include <glib.h>
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#include <libusb.h>
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#include <stdlib.h>
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#include <string.h>
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2013-08-04 14:20:07 +00:00
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#include <math.h>
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2013-07-31 14:53:35 +00:00
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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2013-07-21 10:30:32 +00:00
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#include "protocol.h"
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2013-08-21 00:02:41 +00:00
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#define LOGIC16_VID 0x21a9
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#define LOGIC16_PID 0x1001
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2013-07-31 14:53:35 +00:00
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2013-08-02 19:02:00 +00:00
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#define USB_INTERFACE 0
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#define USB_CONFIGURATION 1
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#define FX2_FIRMWARE FIRMWARE_DIR "/saleae-logic16-fx2.fw"
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#define MAX_RENUM_DELAY_MS 3000
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2013-08-04 11:46:35 +00:00
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#define NUM_SIMUL_TRANSFERS 32
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2013-08-02 19:02:00 +00:00
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2013-07-21 10:30:32 +00:00
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SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
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static struct sr_dev_driver *di = &saleae_logic16_driver_info;
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2013-08-04 12:28:04 +00:00
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static const int32_t hwopts[] = {
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SR_CONF_CONN,
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};
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static const int32_t hwcaps[] = {
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SR_CONF_LOGIC_ANALYZER,
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SR_CONF_SAMPLERATE,
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2013-08-04 14:20:07 +00:00
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SR_CONF_VOLTAGE_THRESHOLD,
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2013-08-04 12:28:04 +00:00
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/* These are really implemented in the driver, not the hardware. */
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SR_CONF_LIMIT_SAMPLES,
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SR_CONF_CONTINUOUS,
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};
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2013-08-21 09:41:21 +00:00
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static const char *probe_names[] = {
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2013-07-31 14:53:35 +00:00
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"0", "1", "2", "3", "4", "5", "6", "7", "8",
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"9", "10", "11", "12", "13", "14", "15",
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NULL,
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};
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2013-07-21 10:30:32 +00:00
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2013-08-04 14:20:07 +00:00
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static const struct {
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enum voltage_range range;
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gdouble low;
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gdouble high;
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} volt_thresholds[] = {
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{ VOLTAGE_RANGE_18_33_V, 0.7, 1.4 },
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{ VOLTAGE_RANGE_5_V, 1.4, 3.6 },
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};
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2013-08-04 11:46:35 +00:00
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static const uint64_t samplerates[] = {
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SR_KHZ(500),
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SR_MHZ(1),
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SR_MHZ(2),
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SR_MHZ(4),
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SR_MHZ(5),
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SR_MHZ(8),
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SR_MHZ(10),
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SR_KHZ(12500),
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SR_MHZ(16),
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SR_MHZ(25),
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SR_MHZ(32),
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SR_MHZ(40),
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SR_MHZ(80),
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SR_MHZ(100),
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};
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2013-07-21 10:30:32 +00:00
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static int init(struct sr_context *sr_ctx)
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{
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return std_init(sr_ctx, di, LOG_PREFIX);
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}
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2013-08-02 19:02:00 +00:00
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static gboolean check_conf_profile(libusb_device *dev)
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{
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struct libusb_device_descriptor des;
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struct libusb_device_handle *hdl;
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gboolean ret;
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unsigned char strdesc[64];
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hdl = NULL;
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ret = FALSE;
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while (!ret) {
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/* Assume the FW has not been loaded, unless proven wrong. */
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if (libusb_get_device_descriptor(dev, &des) != 0)
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break;
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if (libusb_open(dev, &hdl) != 0)
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break;
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if (libusb_get_string_descriptor_ascii(hdl,
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des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
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break;
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if (strcmp((const char *)strdesc, "Saleae LLC"))
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break;
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if (libusb_get_string_descriptor_ascii(hdl,
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2013-08-21 00:02:41 +00:00
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des.iProduct, strdesc, sizeof(strdesc)) < 0)
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2013-08-02 19:02:00 +00:00
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break;
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if (strcmp((const char *)strdesc, "Logic S/16"))
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break;
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/* If we made it here, it must be a configured Logic16. */
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ret = TRUE;
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}
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if (hdl)
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libusb_close(hdl);
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return ret;
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}
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2013-07-21 10:30:32 +00:00
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static GSList *scan(GSList *options)
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{
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struct drv_context *drvc;
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2013-07-31 14:53:35 +00:00
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struct dev_context *devc;
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struct sr_dev_inst *sdi;
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2013-08-02 19:02:00 +00:00
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struct sr_usb_dev_inst *usb;
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2013-07-31 14:53:35 +00:00
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struct sr_probe *probe;
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2013-08-02 19:02:00 +00:00
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struct sr_config *src;
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GSList *l, *devices, *conn_devices;
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2013-07-31 14:53:35 +00:00
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struct libusb_device_descriptor des;
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libusb_device **devlist;
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2013-08-02 19:02:00 +00:00
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int devcnt, ret, i, j;
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const char *conn;
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2013-07-21 10:30:32 +00:00
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drvc = di->priv;
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2013-08-02 19:02:00 +00:00
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conn = NULL;
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for (l = options; l; l = l->next) {
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src = l->data;
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switch (src->key) {
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case SR_CONF_CONN:
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conn = g_variant_get_string(src->data, NULL);
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break;
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}
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}
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if (conn)
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conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
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else
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conn_devices = NULL;
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/* Find all Logic16 devices and upload firmware to them. */
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2013-07-31 14:53:35 +00:00
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devices = NULL;
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libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
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for (i = 0; devlist[i]; i++) {
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2013-08-02 19:02:00 +00:00
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if (conn) {
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usb = NULL;
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for (l = conn_devices; l; l = l->next) {
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usb = l->data;
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if (usb->bus == libusb_get_bus_number(devlist[i])
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&& usb->address == libusb_get_device_address(devlist[i]))
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break;
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}
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if (!l)
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/* This device matched none of the ones that
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* matched the conn specification. */
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continue;
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}
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2013-08-21 00:02:41 +00:00
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if ((ret = libusb_get_device_descriptor(devlist[i], &des)) != 0) {
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2013-08-02 19:02:00 +00:00
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sr_warn("Failed to get device descriptor: %s.",
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libusb_error_name(ret));
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2013-07-31 14:53:35 +00:00
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continue;
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}
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if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID)
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continue;
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devcnt = g_slist_length(drvc->instances);
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2013-08-02 19:02:00 +00:00
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sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
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"Saleae", "Logic16", NULL);
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if (!sdi)
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2013-07-31 14:53:35 +00:00
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return NULL;
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sdi->driver = di;
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for (j = 0; probe_names[j]; j++) {
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if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
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probe_names[j])))
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return NULL;
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sdi->probes = g_slist_append(sdi->probes, probe);
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}
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2013-08-02 19:02:00 +00:00
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if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
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2013-07-31 14:53:35 +00:00
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return NULL;
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2013-08-04 14:20:07 +00:00
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devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V;
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2013-08-02 19:02:00 +00:00
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sdi->priv = devc;
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2013-07-31 14:53:35 +00:00
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drvc->instances = g_slist_append(drvc->instances, sdi);
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devices = g_slist_append(devices, sdi);
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2013-08-02 19:02:00 +00:00
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if (check_conf_profile(devlist[i])) {
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/* Already has the firmware, so fix the new address. */
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sr_dbg("Found a Logic16 device.");
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sdi->status = SR_ST_INACTIVE;
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sdi->inst_type = SR_INST_USB;
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2013-08-21 00:02:41 +00:00
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sdi->conn = sr_usb_dev_inst_new(
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libusb_get_bus_number(devlist[i]),
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libusb_get_device_address(devlist[i]), NULL);
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2013-08-02 19:02:00 +00:00
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} else {
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if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
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FX2_FIRMWARE) == SR_OK)
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/* Store when this device's FW was updated. */
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devc->fw_updated = g_get_monotonic_time();
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else
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sr_err("Firmware upload failed for "
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"device %d.", devcnt);
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sdi->inst_type = SR_INST_USB;
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2013-08-21 00:02:41 +00:00
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sdi->conn = sr_usb_dev_inst_new(
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libusb_get_bus_number(devlist[i]), 0xff, NULL);
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2013-08-02 19:02:00 +00:00
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}
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2013-07-31 14:53:35 +00:00
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}
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libusb_free_device_list(devlist, 1);
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2013-08-02 19:02:00 +00:00
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g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
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2013-07-21 10:30:32 +00:00
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return devices;
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}
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static GSList *dev_list(void)
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{
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2013-08-21 09:37:40 +00:00
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return ((struct drv_context *)(di->priv))->instances;
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2013-07-21 10:30:32 +00:00
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}
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2013-08-02 19:02:00 +00:00
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static int logic16_dev_open(struct sr_dev_inst *sdi)
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{
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libusb_device **devlist;
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struct sr_usb_dev_inst *usb;
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struct libusb_device_descriptor des;
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struct drv_context *drvc;
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int ret, skip, i, device_count;
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drvc = di->priv;
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usb = sdi->conn;
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if (sdi->status == SR_ST_ACTIVE)
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/* Device is already in use. */
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return SR_ERR;
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skip = 0;
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device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
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if (device_count < 0) {
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sr_err("Failed to get device list: %s.",
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libusb_error_name(device_count));
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return SR_ERR;
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}
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for (i = 0; i < device_count; i++) {
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if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
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sr_err("Failed to get device descriptor: %s.",
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libusb_error_name(ret));
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continue;
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}
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2013-08-21 00:02:41 +00:00
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if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID)
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2013-08-02 19:02:00 +00:00
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continue;
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if (sdi->status == SR_ST_INITIALIZING) {
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if (skip != sdi->index) {
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/* Skip devices of this type that aren't the one we want. */
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skip += 1;
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continue;
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}
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} else if (sdi->status == SR_ST_INACTIVE) {
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/*
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* This device is fully enumerated, so we need to find
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* this device by vendor, product, bus and address.
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*/
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if (libusb_get_bus_number(devlist[i]) != usb->bus
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2013-08-21 00:02:41 +00:00
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|| libusb_get_device_address(devlist[i]) != usb->address)
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2013-08-02 19:02:00 +00:00
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/* This is not the one. */
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continue;
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}
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if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
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if (usb->address == 0xff)
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/*
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* First time we touch this device after FW
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* upload, so we don't know the address yet.
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*/
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usb->address = libusb_get_device_address(devlist[i]);
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} else {
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sr_err("Failed to open device: %s.",
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libusb_error_name(ret));
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break;
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}
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2013-10-13 11:36:02 +00:00
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ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
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if (ret == LIBUSB_ERROR_BUSY) {
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sr_err("Unable to claim USB interface. Another "
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"program or driver has already claimed it.");
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break;
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} else if (ret == LIBUSB_ERROR_NO_DEVICE) {
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sr_err("Device has been disconnected.");
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break;
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} else if (ret != 0) {
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sr_err("Unable to claim interface: %s.",
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libusb_error_name(ret));
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break;
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}
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|
2013-08-21 00:02:41 +00:00
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if ((ret = logic16_init_device(sdi)) != SR_OK) {
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2013-08-02 22:35:44 +00:00
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sr_err("Failed to init device.");
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break;
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}
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|
2013-08-02 19:02:00 +00:00
|
|
|
sdi->status = SR_ST_ACTIVE;
|
2013-08-21 00:02:41 +00:00
|
|
|
sr_info("Opened device %d on %d.%d, interface %d.",
|
|
|
|
sdi->index, usb->bus, usb->address, USB_INTERFACE);
|
2013-08-02 19:02:00 +00:00
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
libusb_free_device_list(devlist, 1);
|
|
|
|
|
2013-10-13 11:36:02 +00:00
|
|
|
if (sdi->status != SR_ST_ACTIVE) {
|
|
|
|
if (usb->devhdl) {
|
|
|
|
libusb_release_interface(usb->devhdl, USB_INTERFACE);
|
|
|
|
libusb_close(usb->devhdl);
|
|
|
|
usb->devhdl = NULL;
|
|
|
|
}
|
2013-08-02 19:02:00 +00:00
|
|
|
return SR_ERR;
|
2013-10-13 11:36:02 +00:00
|
|
|
}
|
2013-08-02 19:02:00 +00:00
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
2013-07-21 10:30:32 +00:00
|
|
|
static int dev_open(struct sr_dev_inst *sdi)
|
|
|
|
{
|
2013-08-02 19:02:00 +00:00
|
|
|
struct dev_context *devc;
|
|
|
|
int ret;
|
|
|
|
int64_t timediff_us, timediff_ms;
|
|
|
|
|
|
|
|
devc = sdi->priv;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
|
|
|
|
* milliseconds for the FX2 to renumerate.
|
|
|
|
*/
|
|
|
|
ret = SR_ERR;
|
|
|
|
if (devc->fw_updated > 0) {
|
|
|
|
sr_info("Waiting for device to reset.");
|
|
|
|
/* Takes >= 300ms for the FX2 to be gone from the USB bus. */
|
|
|
|
g_usleep(300 * 1000);
|
|
|
|
timediff_ms = 0;
|
|
|
|
while (timediff_ms < MAX_RENUM_DELAY_MS) {
|
|
|
|
if ((ret = logic16_dev_open(sdi)) == SR_OK)
|
|
|
|
break;
|
|
|
|
g_usleep(100 * 1000);
|
|
|
|
|
|
|
|
timediff_us = g_get_monotonic_time() - devc->fw_updated;
|
|
|
|
timediff_ms = timediff_us / 1000;
|
|
|
|
sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
|
|
|
|
}
|
|
|
|
if (ret != SR_OK) {
|
|
|
|
sr_err("Device failed to renumerate.");
|
|
|
|
return SR_ERR;
|
|
|
|
}
|
|
|
|
sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
|
|
|
|
} else {
|
|
|
|
sr_info("Firmware upload was not needed.");
|
|
|
|
ret = logic16_dev_open(sdi);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ret != SR_OK) {
|
|
|
|
sr_err("Unable to open device.");
|
|
|
|
return SR_ERR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (devc->cur_samplerate == 0) {
|
|
|
|
/* Samplerate hasn't been set; default to the slowest one. */
|
2013-08-04 11:46:35 +00:00
|
|
|
devc->cur_samplerate = samplerates[0];
|
2013-08-02 19:02:00 +00:00
|
|
|
}
|
2013-07-21 10:30:32 +00:00
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dev_close(struct sr_dev_inst *sdi)
|
|
|
|
{
|
2013-08-02 19:02:00 +00:00
|
|
|
struct sr_usb_dev_inst *usb;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2013-08-02 19:02:00 +00:00
|
|
|
usb = sdi->conn;
|
|
|
|
if (usb->devhdl == NULL)
|
|
|
|
return SR_ERR;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2013-08-02 19:02:00 +00:00
|
|
|
sr_info("Closing device %d on %d.%d interface %d.",
|
|
|
|
sdi->index, usb->bus, usb->address, USB_INTERFACE);
|
|
|
|
libusb_release_interface(usb->devhdl, USB_INTERFACE);
|
|
|
|
libusb_close(usb->devhdl);
|
|
|
|
usb->devhdl = NULL;
|
2013-07-21 10:30:32 +00:00
|
|
|
sdi->status = SR_ST_INACTIVE;
|
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cleanup(void)
|
|
|
|
{
|
2013-07-31 14:53:35 +00:00
|
|
|
int ret;
|
|
|
|
struct drv_context *drvc;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2013-07-31 14:53:35 +00:00
|
|
|
if (!(drvc = di->priv))
|
|
|
|
/* Can get called on an unused driver, doesn't matter. */
|
|
|
|
return SR_OK;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2014-02-26 20:37:18 +00:00
|
|
|
|
|
|
|
ret = std_dev_clear(di, NULL);
|
2013-07-31 14:53:35 +00:00
|
|
|
g_free(drvc);
|
|
|
|
di->priv = NULL;
|
|
|
|
|
|
|
|
return ret;
|
2013-07-21 10:30:32 +00:00
|
|
|
}
|
|
|
|
|
2013-10-31 22:58:33 +00:00
|
|
|
static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
|
|
|
|
const struct sr_probe_group *probe_group)
|
2013-07-21 10:30:32 +00:00
|
|
|
{
|
2013-08-04 11:46:35 +00:00
|
|
|
struct dev_context *devc;
|
2013-08-04 12:28:04 +00:00
|
|
|
struct sr_usb_dev_inst *usb;
|
2013-08-04 14:20:07 +00:00
|
|
|
GVariant *range[2];
|
2013-08-04 12:28:04 +00:00
|
|
|
char str[128];
|
2013-07-21 10:30:32 +00:00
|
|
|
int ret;
|
2013-08-21 00:02:41 +00:00
|
|
|
unsigned int i;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2013-10-31 22:58:33 +00:00
|
|
|
(void)probe_group;
|
|
|
|
|
2013-07-21 10:30:32 +00:00
|
|
|
ret = SR_OK;
|
|
|
|
switch (key) {
|
2013-08-04 12:28:04 +00:00
|
|
|
case SR_CONF_CONN:
|
|
|
|
if (!sdi || !sdi->conn)
|
|
|
|
return SR_ERR_ARG;
|
|
|
|
usb = sdi->conn;
|
|
|
|
if (usb->address == 255)
|
|
|
|
/* Device still needs to re-enumerate after firmware
|
|
|
|
* upload, so we don't know its (future) address. */
|
|
|
|
return SR_ERR;
|
|
|
|
snprintf(str, 128, "%d.%d", usb->bus, usb->address);
|
|
|
|
*data = g_variant_new_string(str);
|
|
|
|
break;
|
2013-08-04 11:46:35 +00:00
|
|
|
case SR_CONF_SAMPLERATE:
|
|
|
|
if (!sdi)
|
|
|
|
return SR_ERR;
|
|
|
|
devc = sdi->priv;
|
|
|
|
*data = g_variant_new_uint64(devc->cur_samplerate);
|
|
|
|
break;
|
2013-08-04 14:20:07 +00:00
|
|
|
case SR_CONF_VOLTAGE_THRESHOLD:
|
|
|
|
if (!sdi)
|
|
|
|
return SR_ERR;
|
|
|
|
devc = sdi->priv;
|
|
|
|
ret = SR_ERR;
|
2013-08-21 00:02:41 +00:00
|
|
|
for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
|
|
|
|
if (devc->selected_voltage_range !=
|
|
|
|
volt_thresholds[i].range)
|
|
|
|
continue;
|
|
|
|
range[0] = g_variant_new_double(volt_thresholds[i].low);
|
|
|
|
range[1] = g_variant_new_double(volt_thresholds[i].high);
|
|
|
|
*data = g_variant_new_tuple(range, 2);
|
|
|
|
ret = SR_OK;
|
|
|
|
break;
|
|
|
|
}
|
2013-08-04 14:20:07 +00:00
|
|
|
break;
|
2013-07-21 10:30:32 +00:00
|
|
|
default:
|
|
|
|
return SR_ERR_NA;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-10-31 22:58:33 +00:00
|
|
|
static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
|
|
|
|
const struct sr_probe_group *probe_group)
|
2013-07-21 10:30:32 +00:00
|
|
|
{
|
2013-08-04 11:46:35 +00:00
|
|
|
struct dev_context *devc;
|
2013-08-04 14:20:07 +00:00
|
|
|
gdouble low, high;
|
2013-07-21 10:30:32 +00:00
|
|
|
int ret;
|
2013-08-21 00:02:41 +00:00
|
|
|
unsigned int i;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2013-10-31 22:58:33 +00:00
|
|
|
(void)probe_group;
|
|
|
|
|
2013-07-21 10:30:32 +00:00
|
|
|
if (sdi->status != SR_ST_ACTIVE)
|
|
|
|
return SR_ERR_DEV_CLOSED;
|
|
|
|
|
2013-08-04 11:46:35 +00:00
|
|
|
devc = sdi->priv;
|
|
|
|
|
2013-07-21 10:30:32 +00:00
|
|
|
ret = SR_OK;
|
|
|
|
switch (key) {
|
2013-08-04 11:46:35 +00:00
|
|
|
case SR_CONF_SAMPLERATE:
|
|
|
|
devc->cur_samplerate = g_variant_get_uint64(data);
|
|
|
|
break;
|
|
|
|
case SR_CONF_LIMIT_SAMPLES:
|
|
|
|
devc->limit_samples = g_variant_get_uint64(data);
|
|
|
|
break;
|
2013-08-04 14:20:07 +00:00
|
|
|
case SR_CONF_VOLTAGE_THRESHOLD:
|
|
|
|
g_variant_get(data, "(dd)", &low, &high);
|
|
|
|
ret = SR_ERR_ARG;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
|
|
|
|
if (fabs(volt_thresholds[i].low - low) < 0.1 &&
|
|
|
|
fabs(volt_thresholds[i].high - high) < 0.1) {
|
|
|
|
devc->selected_voltage_range =
|
|
|
|
volt_thresholds[i].range;
|
|
|
|
ret = SR_OK;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
2013-07-21 10:30:32 +00:00
|
|
|
default:
|
|
|
|
ret = SR_ERR_NA;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-10-31 22:58:33 +00:00
|
|
|
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
|
|
|
|
const struct sr_probe_group *probe_group)
|
2013-07-21 10:30:32 +00:00
|
|
|
{
|
2013-08-04 14:20:07 +00:00
|
|
|
GVariant *gvar, *range[2];
|
2013-08-04 11:46:35 +00:00
|
|
|
GVariantBuilder gvb;
|
2013-07-21 10:30:32 +00:00
|
|
|
int ret;
|
2013-08-21 00:02:41 +00:00
|
|
|
unsigned int i;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
|
|
|
(void)sdi;
|
2013-10-31 22:58:33 +00:00
|
|
|
(void)probe_group;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
|
|
|
ret = SR_OK;
|
|
|
|
switch (key) {
|
2013-08-04 12:28:04 +00:00
|
|
|
case SR_CONF_SCAN_OPTIONS:
|
|
|
|
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
|
|
|
|
hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
|
|
|
|
break;
|
|
|
|
case SR_CONF_DEVICE_OPTIONS:
|
|
|
|
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
|
|
|
|
hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
|
|
|
|
break;
|
2013-08-04 11:46:35 +00:00
|
|
|
case SR_CONF_SAMPLERATE:
|
|
|
|
g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
|
2013-08-21 00:02:41 +00:00
|
|
|
gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
|
|
|
|
samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t));
|
2013-08-04 11:46:35 +00:00
|
|
|
g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
|
|
|
|
*data = g_variant_builder_end(&gvb);
|
2013-08-04 14:20:07 +00:00
|
|
|
break;
|
|
|
|
case SR_CONF_VOLTAGE_THRESHOLD:
|
|
|
|
g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
|
|
|
|
range[0] = g_variant_new_double(volt_thresholds[i].low);
|
|
|
|
range[1] = g_variant_new_double(volt_thresholds[i].high);
|
|
|
|
gvar = g_variant_new_tuple(range, 2);
|
|
|
|
g_variant_builder_add_value(&gvb, gvar);
|
|
|
|
}
|
|
|
|
*data = g_variant_builder_end(&gvb);
|
2013-08-04 11:46:35 +00:00
|
|
|
break;
|
2013-07-21 10:30:32 +00:00
|
|
|
default:
|
|
|
|
return SR_ERR_NA;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-08-04 11:46:35 +00:00
|
|
|
static void abort_acquisition(struct dev_context *devc)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
devc->num_samples = -1;
|
|
|
|
|
|
|
|
for (i = devc->num_transfers - 1; i >= 0; i--) {
|
|
|
|
if (devc->transfers[i])
|
|
|
|
libusb_cancel_transfer(devc->transfers[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int bytes_per_ms(struct dev_context *devc)
|
|
|
|
{
|
|
|
|
return devc->cur_samplerate * devc->num_channels / 8000;
|
|
|
|
}
|
|
|
|
|
|
|
|
static size_t get_buffer_size(struct dev_context *devc)
|
|
|
|
{
|
|
|
|
size_t s;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The buffer should be large enough to hold 10ms of data and
|
|
|
|
* a multiple of 512.
|
|
|
|
*/
|
|
|
|
s = 10 * bytes_per_ms(devc);
|
|
|
|
return (s + 511) & ~511;
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int get_number_of_transfers(struct dev_context *devc)
|
|
|
|
{
|
|
|
|
unsigned int n;
|
|
|
|
|
|
|
|
/* Total buffer size should be able to hold about 500ms of data. */
|
|
|
|
n = 500 * bytes_per_ms(devc) / get_buffer_size(devc);
|
|
|
|
|
|
|
|
if (n > NUM_SIMUL_TRANSFERS)
|
|
|
|
return NUM_SIMUL_TRANSFERS;
|
|
|
|
|
|
|
|
return n;
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int get_timeout(struct dev_context *devc)
|
|
|
|
{
|
|
|
|
size_t total_size;
|
|
|
|
unsigned int timeout;
|
|
|
|
|
|
|
|
total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
|
|
|
|
timeout = total_size / bytes_per_ms(devc);
|
|
|
|
return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
|
|
|
|
}
|
|
|
|
|
|
|
|
static int configure_probes(const struct sr_dev_inst *sdi)
|
|
|
|
{
|
|
|
|
struct dev_context *devc;
|
|
|
|
struct sr_probe *probe;
|
|
|
|
GSList *l;
|
|
|
|
uint16_t probe_bit;
|
|
|
|
|
|
|
|
devc = sdi->priv;
|
|
|
|
|
|
|
|
devc->cur_channels = 0;
|
|
|
|
devc->num_channels = 0;
|
|
|
|
for (l = sdi->probes; l; l = l->next) {
|
|
|
|
probe = (struct sr_probe *)l->data;
|
|
|
|
if (probe->enabled == FALSE)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
probe_bit = 1 << (probe->index);
|
|
|
|
|
|
|
|
devc->cur_channels |= probe_bit;
|
|
|
|
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
2013-08-21 00:02:41 +00:00
|
|
|
/*
|
|
|
|
* Output logic data should be stored in little endian format.
|
|
|
|
* To speed things up during conversion, do the switcharoo
|
|
|
|
* here instead.
|
|
|
|
*/
|
2013-08-04 11:46:35 +00:00
|
|
|
probe_bit = 1 << (probe->index ^ 8);
|
|
|
|
#endif
|
|
|
|
|
2013-08-21 00:02:41 +00:00
|
|
|
devc->channel_masks[devc->num_channels++] = probe_bit;
|
2013-08-04 11:46:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int receive_data(int fd, int revents, void *cb_data)
|
|
|
|
{
|
|
|
|
struct timeval tv;
|
|
|
|
struct dev_context *devc;
|
|
|
|
struct drv_context *drvc;
|
|
|
|
const struct sr_dev_inst *sdi;
|
|
|
|
|
|
|
|
(void)fd;
|
|
|
|
(void)revents;
|
|
|
|
|
|
|
|
sdi = cb_data;
|
|
|
|
drvc = di->priv;
|
|
|
|
devc = sdi->priv;
|
|
|
|
|
|
|
|
tv.tv_sec = tv.tv_usec = 0;
|
|
|
|
libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
|
|
|
|
|
|
|
|
if (devc->num_samples == -2) {
|
2013-08-21 00:02:41 +00:00
|
|
|
logic16_abort_acquisition(sdi);
|
2013-08-04 11:46:35 +00:00
|
|
|
abort_acquisition(devc);
|
|
|
|
}
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2013-08-21 00:02:41 +00:00
|
|
|
static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
|
2013-07-21 10:30:32 +00:00
|
|
|
{
|
2013-08-04 11:46:35 +00:00
|
|
|
struct dev_context *devc;
|
|
|
|
struct drv_context *drvc;
|
|
|
|
struct sr_usb_dev_inst *usb;
|
|
|
|
struct libusb_transfer *transfer;
|
|
|
|
unsigned int i, timeout, num_transfers;
|
|
|
|
int ret;
|
|
|
|
unsigned char *buf;
|
|
|
|
size_t size, convsize;
|
2013-07-21 10:30:32 +00:00
|
|
|
|
|
|
|
if (sdi->status != SR_ST_ACTIVE)
|
|
|
|
return SR_ERR_DEV_CLOSED;
|
|
|
|
|
2013-08-04 11:46:35 +00:00
|
|
|
drvc = di->priv;
|
|
|
|
devc = sdi->priv;
|
|
|
|
usb = sdi->conn;
|
|
|
|
|
2013-08-21 00:02:41 +00:00
|
|
|
/* Configures devc->cur_channels. */
|
2013-08-04 11:46:35 +00:00
|
|
|
if (configure_probes(sdi) != SR_OK) {
|
|
|
|
sr_err("Failed to configure probes.");
|
|
|
|
return SR_ERR;
|
|
|
|
}
|
|
|
|
|
|
|
|
devc->cb_data = cb_data;
|
|
|
|
devc->num_samples = 0;
|
|
|
|
devc->empty_transfer_count = 0;
|
|
|
|
devc->cur_channel = 0;
|
|
|
|
memset(devc->channel_data, 0, sizeof(devc->channel_data));
|
|
|
|
|
|
|
|
timeout = get_timeout(devc);
|
|
|
|
num_transfers = get_number_of_transfers(devc);
|
|
|
|
size = get_buffer_size(devc);
|
|
|
|
convsize = (size / devc->num_channels + 2) * 16;
|
|
|
|
devc->submitted_transfers = 0;
|
|
|
|
|
|
|
|
devc->convbuffer_size = convsize;
|
|
|
|
if (!(devc->convbuffer = g_try_malloc(convsize))) {
|
|
|
|
sr_err("Conversion buffer malloc failed.");
|
|
|
|
return SR_ERR_MALLOC;
|
|
|
|
}
|
|
|
|
|
|
|
|
devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
|
|
|
|
if (!devc->transfers) {
|
|
|
|
sr_err("USB transfers malloc failed.");
|
|
|
|
g_free(devc->convbuffer);
|
|
|
|
return SR_ERR_MALLOC;
|
|
|
|
}
|
|
|
|
|
2013-08-21 00:02:41 +00:00
|
|
|
if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate,
|
|
|
|
devc->cur_channels)) != SR_OK) {
|
2013-08-04 11:46:35 +00:00
|
|
|
g_free(devc->transfers);
|
|
|
|
g_free(devc->convbuffer);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
devc->num_transfers = num_transfers;
|
|
|
|
for (i = 0; i < num_transfers; i++) {
|
|
|
|
if (!(buf = g_try_malloc(size))) {
|
|
|
|
sr_err("USB transfer buffer malloc failed.");
|
|
|
|
if (devc->submitted_transfers)
|
|
|
|
abort_acquisition(devc);
|
|
|
|
else {
|
|
|
|
g_free(devc->transfers);
|
|
|
|
g_free(devc->convbuffer);
|
|
|
|
}
|
|
|
|
return SR_ERR_MALLOC;
|
|
|
|
}
|
|
|
|
transfer = libusb_alloc_transfer(0);
|
|
|
|
libusb_fill_bulk_transfer(transfer, usb->devhdl,
|
|
|
|
2 | LIBUSB_ENDPOINT_IN, buf, size,
|
2013-08-21 00:02:41 +00:00
|
|
|
logic16_receive_transfer, devc, timeout);
|
2013-08-04 11:46:35 +00:00
|
|
|
if ((ret = libusb_submit_transfer(transfer)) != 0) {
|
|
|
|
sr_err("Failed to submit transfer: %s.",
|
|
|
|
libusb_error_name(ret));
|
|
|
|
libusb_free_transfer(transfer);
|
|
|
|
g_free(buf);
|
|
|
|
abort_acquisition(devc);
|
|
|
|
return SR_ERR;
|
|
|
|
}
|
|
|
|
devc->transfers[i] = transfer;
|
|
|
|
devc->submitted_transfers++;
|
|
|
|
}
|
|
|
|
|
2013-12-21 23:03:24 +00:00
|
|
|
devc->ctx = drvc->sr_ctx;
|
|
|
|
|
|
|
|
usb_source_add(devc->ctx, timeout, receive_data, (void *)sdi);
|
2013-08-04 11:46:35 +00:00
|
|
|
|
|
|
|
/* Send header packet to the session bus. */
|
|
|
|
std_session_send_df_header(cb_data, LOG_PREFIX);
|
|
|
|
|
2013-08-21 00:02:41 +00:00
|
|
|
if ((ret = logic16_start_acquisition(sdi)) != SR_OK) {
|
2013-08-04 11:46:35 +00:00
|
|
|
abort_acquisition(devc);
|
|
|
|
return ret;
|
|
|
|
}
|
2013-07-21 10:30:32 +00:00
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
|
|
|
|
{
|
2013-08-04 11:46:35 +00:00
|
|
|
int ret;
|
|
|
|
|
2013-07-21 10:30:32 +00:00
|
|
|
(void)cb_data;
|
|
|
|
|
|
|
|
if (sdi->status != SR_ST_ACTIVE)
|
|
|
|
return SR_ERR_DEV_CLOSED;
|
|
|
|
|
2013-08-21 00:02:41 +00:00
|
|
|
ret = logic16_abort_acquisition(sdi);
|
2013-07-21 10:30:32 +00:00
|
|
|
|
2013-08-04 11:46:35 +00:00
|
|
|
abort_acquisition(sdi->priv);
|
|
|
|
|
|
|
|
return ret;
|
2013-07-21 10:30:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = {
|
|
|
|
.name = "saleae-logic16",
|
|
|
|
.longname = "Saleae Logic16",
|
|
|
|
.api_version = 1,
|
|
|
|
.init = init,
|
|
|
|
.cleanup = cleanup,
|
|
|
|
.scan = scan,
|
|
|
|
.dev_list = dev_list,
|
2014-02-26 20:37:18 +00:00
|
|
|
.dev_clear = NULL,
|
2013-07-21 10:30:32 +00:00
|
|
|
.config_get = config_get,
|
|
|
|
.config_set = config_set,
|
|
|
|
.config_list = config_list,
|
|
|
|
.dev_open = dev_open,
|
|
|
|
.dev_close = dev_close,
|
|
|
|
.dev_acquisition_start = dev_acquisition_start,
|
|
|
|
.dev_acquisition_stop = dev_acquisition_stop,
|
|
|
|
.priv = NULL,
|
|
|
|
};
|