This now matches the naming conventions of the other drivers.
noinst_LTLIBRARIES = libsigrok_hw_fx2lafw.la
libsigrok_hw_fx2lafw_la_SOURCES = \
- command.c \
- command.h \
- fx2lafw.c \
- fx2lafw.h
+ api.c \
+ protocol.c \
+ protocol.h
libsigrok_hw_fx2lafw_la_CFLAGS = \
-I$(top_srcdir)
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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/>.
+ */
+
+#include "protocol.h"
+
+static const struct fx2lafw_profile supported_fx2[] = {
+ /*
+ * CWAV USBee AX
+ * EE Electronics ESLA201A
+ * ARMFLY AX-Pro
+ */
+ { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
+ FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw",
+ 0 },
+ /*
+ * CWAV USBee DX
+ * XZL-Studio DX
+ */
+ { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
+ FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw",
+ DEV_CAPS_16BIT },
+
+ /*
+ * CWAV USBee SX
+ */
+ { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
+ FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw",
+ 0 },
+
+ /*
+ * Saleae Logic
+ * EE Electronics ESLA100
+ * Robomotic MiniLogic
+ * Robomotic BugLogic 3
+ */
+ { 0x0925, 0x3881, "Saleae", "Logic", NULL,
+ FIRMWARE_DIR "/fx2lafw-saleae-logic.fw",
+ 0 },
+
+ /*
+ * Default Cypress FX2 without EEPROM, e.g.:
+ * Lcsoft Mini Board
+ * Braintechnology USB Interface V2.x
+ */
+ { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
+ FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw",
+ DEV_CAPS_16BIT },
+
+ /*
+ * Braintechnology USB-LPS
+ */
+ { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
+ FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw",
+ DEV_CAPS_16BIT },
+
+ { 0, 0, 0, 0, 0, 0, 0 }
+};
+
+static const int32_t hwopts[] = {
+ SR_CONF_CONN,
+};
+
+static const int32_t hwcaps[] = {
+ SR_CONF_LOGIC_ANALYZER,
+ SR_CONF_TRIGGER_TYPE,
+ SR_CONF_SAMPLERATE,
+
+ /* These are really implemented in the driver, not the hardware. */
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_CONTINUOUS,
+};
+
+static const char *probe_names[] = {
+ "0", "1", "2", "3", "4", "5", "6", "7",
+ "8", "9", "10", "11", "12", "13", "14", "15",
+ NULL,
+};
+
+static const uint64_t samplerates[] = {
+ SR_KHZ(20),
+ SR_KHZ(25),
+ SR_KHZ(50),
+ SR_KHZ(100),
+ SR_KHZ(200),
+ SR_KHZ(250),
+ SR_KHZ(500),
+ SR_MHZ(1),
+ SR_MHZ(2),
+ SR_MHZ(3),
+ SR_MHZ(4),
+ SR_MHZ(6),
+ SR_MHZ(8),
+ SR_MHZ(12),
+ SR_MHZ(16),
+ SR_MHZ(24),
+};
+
+SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
+static struct sr_dev_driver *di = &fx2lafw_driver_info;
+
+static int dev_clear(void)
+{
+ return std_dev_clear(di, NULL);
+}
+
+static int init(struct sr_context *sr_ctx)
+{
+ return std_init(sr_ctx, di, LOG_PREFIX);
+}
+
+static GSList *scan(GSList *options)
+{
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ struct sr_usb_dev_inst *usb;
+ struct sr_probe *probe;
+ struct sr_config *src;
+ const struct fx2lafw_profile *prof;
+ GSList *l, *devices, *conn_devices;
+ struct libusb_device_descriptor des;
+ libusb_device **devlist;
+ int devcnt, num_logic_probes, ret, i, j;
+ const char *conn;
+
+ drvc = di->priv;
+
+ conn = NULL;
+ for (l = options; l; l = l->next) {
+ src = l->data;
+ switch (src->key) {
+ case SR_CONF_CONN:
+ conn = g_variant_get_string(src->data, NULL);
+ break;
+ }
+ }
+ if (conn)
+ conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
+ else
+ conn_devices = NULL;
+
+ /* Find all fx2lafw compatible devices and upload firmware to them. */
+ devices = NULL;
+ libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ for (i = 0; devlist[i]; i++) {
+ if (conn) {
+ usb = NULL;
+ for (l = conn_devices; l; l = l->next) {
+ usb = l->data;
+ if (usb->bus == libusb_get_bus_number(devlist[i])
+ && usb->address == libusb_get_device_address(devlist[i]))
+ break;
+ }
+ if (!l)
+ /* This device matched none of the ones that
+ * matched the conn specification. */
+ continue;
+ }
+
+ if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
+ sr_warn("Failed to get device descriptor: %s.",
+ libusb_error_name(ret));
+ continue;
+ }
+
+ prof = NULL;
+ for (j = 0; supported_fx2[j].vid; j++) {
+ if (des.idVendor == supported_fx2[j].vid &&
+ des.idProduct == supported_fx2[j].pid) {
+ prof = &supported_fx2[j];
+ }
+ }
+
+ /* Skip if the device was not found. */
+ if (!prof)
+ continue;
+
+ devcnt = g_slist_length(drvc->instances);
+ sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
+ prof->vendor, prof->model, prof->model_version);
+ if (!sdi)
+ return NULL;
+ sdi->driver = di;
+
+ /* Fill in probelist according to this device's profile. */
+ num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
+ for (j = 0; j < num_logic_probes; j++) {
+ if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
+ probe_names[j])))
+ return NULL;
+ sdi->probes = g_slist_append(sdi->probes, probe);
+ }
+
+ devc = fx2lafw_dev_new();
+ devc->profile = prof;
+ sdi->priv = devc;
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+
+ if (fx2lafw_check_conf_profile(devlist[i])) {
+ /* Already has the firmware, so fix the new address. */
+ sr_dbg("Found an fx2lafw device.");
+ sdi->status = SR_ST_INACTIVE;
+ sdi->inst_type = SR_INST_USB;
+ sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
+ libusb_get_device_address(devlist[i]), NULL);
+ } else {
+ if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
+ prof->firmware) == SR_OK)
+ /* Store when this device's FW was updated. */
+ devc->fw_updated = g_get_monotonic_time();
+ else
+ sr_err("Firmware upload failed for "
+ "device %d.", devcnt);
+ sdi->inst_type = SR_INST_USB;
+ sdi->conn = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]),
+ 0xff, NULL);
+ }
+ }
+ libusb_free_device_list(devlist, 1);
+ g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
+
+ return devices;
+}
+
+static GSList *dev_list(void)
+{
+ return ((struct drv_context *)(di->priv))->instances;
+}
+
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+ struct dev_context *devc;
+ int ret;
+ int64_t timediff_us, timediff_ms;
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ /*
+ * 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 = fx2lafw_dev_open(sdi, di)) == 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 = fx2lafw_dev_open(sdi, di);
+ }
+
+ if (ret != SR_OK) {
+ sr_err("Unable to open device.");
+ return SR_ERR;
+ }
+
+ ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
+ if (ret != 0) {
+ switch(ret) {
+ case LIBUSB_ERROR_BUSY:
+ sr_err("Unable to claim USB interface. Another "
+ "program or driver has already claimed it.");
+ break;
+ case LIBUSB_ERROR_NO_DEVICE:
+ sr_err("Device has been disconnected.");
+ break;
+ default:
+ sr_err("Unable to claim interface: %s.",
+ libusb_error_name(ret));
+ break;
+ }
+
+ return SR_ERR;
+ }
+
+ if (devc->cur_samplerate == 0) {
+ /* Samplerate hasn't been set; default to the slowest one. */
+ devc->cur_samplerate = samplerates[0];
+ }
+
+ return SR_OK;
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+
+ usb = sdi->conn;
+ if (usb->devhdl == NULL)
+ return SR_ERR;
+
+ sr_info("fx2lafw: 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;
+ sdi->status = SR_ST_INACTIVE;
+
+ return SR_OK;
+}
+
+static int cleanup(void)
+{
+ int ret;
+ struct drv_context *drvc;
+
+ if (!(drvc = di->priv))
+ return SR_OK;
+
+ ret = dev_clear();
+
+ g_free(drvc);
+ di->priv = NULL;
+
+ return ret;
+}
+
+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ char str[128];
+
+ switch (id) {
+ 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;
+ case SR_CONF_SAMPLERATE:
+ if (!sdi)
+ return SR_ERR;
+ devc = sdi->priv;
+ *data = g_variant_new_uint64(devc->cur_samplerate);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ int ret;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR;
+
+ devc = sdi->priv;
+
+ if (id == SR_CONF_SAMPLERATE) {
+ devc->cur_samplerate = g_variant_get_uint64(data);
+ ret = SR_OK;
+ } else if (id == SR_CONF_LIMIT_SAMPLES) {
+ devc->limit_samples = g_variant_get_uint64(data);
+ ret = SR_OK;
+ } else {
+ ret = SR_ERR_NA;
+ }
+
+ return ret;
+}
+
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
+{
+ GVariant *gvar;
+ GVariantBuilder gvb;
+
+ (void)sdi;
+
+ switch (key) {
+ 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;
+ case SR_CONF_SAMPLERATE:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
+ ARRAY_SIZE(samplerates), sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_TRIGGER_TYPE:
+ *data = g_variant_new_string(TRIGGER_TYPE);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int receive_data(int fd, int revents, void *cb_data)
+{
+ struct timeval tv;
+ struct drv_context *drvc;
+
+ (void)fd;
+ (void)revents;
+ (void)cb_data;
+
+ drvc = di->priv;
+
+ tv.tv_sec = tv.tv_usec = 0;
+ libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
+
+ return TRUE;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+{
+ struct dev_context *devc;
+ struct drv_context *drvc;
+ struct sr_usb_dev_inst *usb;
+ struct libusb_transfer *transfer;
+ const struct libusb_pollfd **lupfd;
+ unsigned int i, timeout, num_transfers;
+ int ret;
+ unsigned char *buf;
+ size_t size;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ drvc = di->priv;
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ /* Configures devc->trigger_* and devc->sample_wide */
+ if (fx2lafw_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;
+
+ timeout = fx2lafw_get_timeout(devc);
+ num_transfers = fx2lafw_get_number_of_transfers(devc);
+ size = fx2lafw_get_buffer_size(devc);
+ devc->submitted_transfers = 0;
+
+ devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
+ if (!devc->transfers) {
+ sr_err("USB transfers malloc failed.");
+ return SR_ERR_MALLOC;
+ }
+
+ 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.");
+ return SR_ERR_MALLOC;
+ }
+ transfer = libusb_alloc_transfer(0);
+ libusb_fill_bulk_transfer(transfer, usb->devhdl,
+ 2 | LIBUSB_ENDPOINT_IN, buf, size,
+ fx2lafw_receive_transfer, devc, timeout);
+ 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);
+ fx2lafw_abort_acquisition(devc);
+ return SR_ERR;
+ }
+ devc->transfers[i] = transfer;
+ devc->submitted_transfers++;
+ }
+
+ lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
+ for (i = 0; lupfd[i]; i++);
+ if (!(devc->usbfd = g_try_malloc(sizeof(struct libusb_pollfd) * (i + 1))))
+ return SR_ERR;
+ for (i = 0; lupfd[i]; i++) {
+ sr_source_add(lupfd[i]->fd, lupfd[i]->events,
+ timeout, receive_data, NULL);
+ devc->usbfd[i] = lupfd[i]->fd;
+ }
+ devc->usbfd[i] = -1;
+ free(lupfd);
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ if ((ret = fx2lafw_command_start_acquisition(usb->devhdl,
+ devc->cur_samplerate, devc->sample_wide)) != SR_OK) {
+ fx2lafw_abort_acquisition(devc);
+ return ret;
+ }
+
+ return SR_OK;
+}
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+{
+ (void)cb_data;
+
+ fx2lafw_abort_acquisition(sdi->priv);
+
+ return SR_OK;
+}
+
+SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
+ .name = "fx2lafw",
+ .longname = "fx2lafw (generic driver for FX2 based LAs)",
+ .api_version = 1,
+ .init = init,
+ .cleanup = cleanup,
+ .scan = scan,
+ .dev_list = dev_list,
+ .dev_clear = dev_clear,
+ .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,
+};
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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/>.
- */
-
-#include <libusb.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "fx2lafw.h"
-#include "command.h"
-
-SR_PRIV int command_get_fw_version(libusb_device_handle *devhdl,
- struct version_info *vi)
-{
- int ret;
-
- ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_IN, CMD_GET_FW_VERSION, 0x0000, 0x0000,
- (unsigned char *)vi, sizeof(struct version_info), 100);
-
- if (ret < 0) {
- sr_err("Unable to get version info: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-SR_PRIV int command_get_revid_version(libusb_device_handle *devhdl,
- uint8_t *revid)
-{
- int ret;
-
- ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_IN, CMD_GET_REVID_VERSION, 0x0000, 0x0000,
- revid, 1, 100);
-
- if (ret < 0) {
- sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-SR_PRIV int command_start_acquisition(libusb_device_handle *devhdl,
- uint64_t samplerate, gboolean samplewide)
-{
- struct cmd_start_acquisition cmd;
- int delay = 0, ret;
-
- /* Compute the sample rate. */
- if (samplewide && samplerate > MAX_16BIT_SAMPLE_RATE) {
- sr_err("Unable to sample at %" PRIu64 "Hz "
- "when collecting 16-bit samples.", samplerate);
- return SR_ERR;
- }
-
- if ((SR_MHZ(48) % samplerate) == 0) {
- cmd.flags = CMD_START_FLAGS_CLK_48MHZ;
- delay = SR_MHZ(48) / samplerate - 1;
- if (delay > MAX_SAMPLE_DELAY)
- delay = 0;
- }
-
- if (delay == 0 && (SR_MHZ(30) % samplerate) == 0) {
- cmd.flags = CMD_START_FLAGS_CLK_30MHZ;
- delay = SR_MHZ(30) / samplerate - 1;
- }
-
- sr_info("GPIF delay = %d, clocksource = %sMHz.", delay,
- (cmd.flags & CMD_START_FLAGS_CLK_48MHZ) ? "48" : "30");
-
- if (delay <= 0 || delay > MAX_SAMPLE_DELAY) {
- sr_err("Unable to sample at %" PRIu64 "Hz.", samplerate);
- return SR_ERR;
- }
-
- cmd.sample_delay_h = (delay >> 8) & 0xff;
- cmd.sample_delay_l = delay & 0xff;
-
- /* Select the sampling width. */
- cmd.flags |= samplewide ? CMD_START_FLAGS_SAMPLE_16BIT :
- CMD_START_FLAGS_SAMPLE_8BIT;
-
- /* Send the control message. */
- ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
- (unsigned char *)&cmd, sizeof(cmd), 100);
- if (ret < 0) {
- sr_err("Unable to send start command: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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_FX2LAFW_COMMAND_H
-#define LIBSIGROK_HARDWARE_FX2LAFW_COMMAND_H
-
-#include <glib.h>
-#include "libsigrok.h"
-
-/* Protocol commands */
-#define CMD_GET_FW_VERSION 0xb0
-#define CMD_START 0xb1
-#define CMD_GET_REVID_VERSION 0xb2
-
-#define CMD_START_FLAGS_WIDE_POS 5
-#define CMD_START_FLAGS_CLK_SRC_POS 6
-
-#define CMD_START_FLAGS_SAMPLE_8BIT (0 << CMD_START_FLAGS_WIDE_POS)
-#define CMD_START_FLAGS_SAMPLE_16BIT (1 << CMD_START_FLAGS_WIDE_POS)
-
-#define CMD_START_FLAGS_CLK_30MHZ (0 << CMD_START_FLAGS_CLK_SRC_POS)
-#define CMD_START_FLAGS_CLK_48MHZ (1 << CMD_START_FLAGS_CLK_SRC_POS)
-
-#pragma pack(push, 1)
-
-struct version_info {
- uint8_t major;
- uint8_t minor;
-};
-
-struct cmd_start_acquisition {
- uint8_t flags;
- uint8_t sample_delay_h;
- uint8_t sample_delay_l;
-};
-
-#pragma pack(pop)
-
-SR_PRIV int command_get_fw_version(libusb_device_handle *devhdl,
- struct version_info *vi);
-SR_PRIV int command_get_revid_version(libusb_device_handle *devhdl,
- uint8_t *revid);
-SR_PRIV int command_start_acquisition(libusb_device_handle *devhdl,
- uint64_t samplerate, gboolean samplewide);
-
-#endif
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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/>.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <inttypes.h>
-#include <libusb.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "fx2lafw.h"
-#include "command.h"
-
-static const struct fx2lafw_profile supported_fx2[] = {
- /*
- * CWAV USBee AX
- * EE Electronics ESLA201A
- * ARMFLY AX-Pro
- */
- { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
- FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw",
- 0 },
- /*
- * CWAV USBee DX
- * XZL-Studio DX
- */
- { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
- FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw",
- DEV_CAPS_16BIT },
-
- /*
- * CWAV USBee SX
- */
- { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
- FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw",
- 0 },
-
- /*
- * Saleae Logic
- * EE Electronics ESLA100
- * Robomotic MiniLogic
- * Robomotic BugLogic 3
- */
- { 0x0925, 0x3881, "Saleae", "Logic", NULL,
- FIRMWARE_DIR "/fx2lafw-saleae-logic.fw",
- 0 },
-
- /*
- * Default Cypress FX2 without EEPROM, e.g.:
- * Lcsoft Mini Board
- * Braintechnology USB Interface V2.x
- */
- { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
- FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw",
- DEV_CAPS_16BIT },
-
- /*
- * Braintechnology USB-LPS
- */
- { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
- FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw",
- DEV_CAPS_16BIT },
-
- { 0, 0, 0, 0, 0, 0, 0 }
-};
-
-static const int32_t hwopts[] = {
- SR_CONF_CONN,
-};
-
-static const int32_t hwcaps[] = {
- SR_CONF_LOGIC_ANALYZER,
- SR_CONF_TRIGGER_TYPE,
- SR_CONF_SAMPLERATE,
-
- /* These are really implemented in the driver, not the hardware. */
- SR_CONF_LIMIT_SAMPLES,
- SR_CONF_CONTINUOUS,
-};
-
-static const char *probe_names[] = {
- "0", "1", "2", "3", "4", "5", "6", "7",
- "8", "9", "10", "11", "12", "13", "14", "15",
- NULL,
-};
-
-static const uint64_t samplerates[] = {
- SR_KHZ(20),
- SR_KHZ(25),
- SR_KHZ(50),
- SR_KHZ(100),
- SR_KHZ(200),
- SR_KHZ(250),
- SR_KHZ(500),
- SR_MHZ(1),
- SR_MHZ(2),
- SR_MHZ(3),
- SR_MHZ(4),
- SR_MHZ(6),
- SR_MHZ(8),
- SR_MHZ(12),
- SR_MHZ(16),
- SR_MHZ(24),
-};
-
-SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
-static struct sr_dev_driver *di = &fx2lafw_driver_info;
-
-/**
- * Check the USB configuration to determine if this is an fx2lafw device.
- *
- * @return TRUE if the device's configuration profile match fx2lafw
- * configuration, FALSE otherwise.
- */
-static gboolean check_conf_profile(libusb_device *dev)
-{
- struct libusb_device_descriptor des;
- struct libusb_device_handle *hdl;
- gboolean ret;
- unsigned char strdesc[64];
-
- hdl = NULL;
- ret = FALSE;
- while (!ret) {
- /* Assume the FW has not been loaded, unless proven wrong. */
- if (libusb_get_device_descriptor(dev, &des) != 0)
- break;
-
- if (libusb_open(dev, &hdl) != 0)
- break;
-
- if (libusb_get_string_descriptor_ascii(hdl,
- des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
- break;
- if (strncmp((const char *)strdesc, "sigrok", 6))
- break;
-
- if (libusb_get_string_descriptor_ascii(hdl,
- des.iProduct, strdesc, sizeof(strdesc)) < 0)
- break;
- if (strncmp((const char *)strdesc, "fx2lafw", 7))
- break;
-
- /* If we made it here, it must be an fx2lafw. */
- ret = TRUE;
- }
- if (hdl)
- libusb_close(hdl);
-
- return ret;
-}
-
-static int fx2lafw_dev_open(struct sr_dev_inst *sdi)
-{
- libusb_device **devlist;
- struct sr_usb_dev_inst *usb;
- struct libusb_device_descriptor des;
- struct dev_context *devc;
- struct drv_context *drvc;
- struct version_info vi;
- int ret, skip, i, device_count;
- uint8_t revid;
-
- drvc = di->priv;
- devc = sdi->priv;
- usb = sdi->conn;
-
- if (sdi->status == SR_ST_ACTIVE)
- /* Device is already in use. */
- return SR_ERR;
-
- skip = 0;
- device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
- if (device_count < 0) {
- sr_err("Failed to get device list: %s.",
- libusb_error_name(device_count));
- return SR_ERR;
- }
-
- for (i = 0; i < device_count; i++) {
- if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
- sr_err("Failed to get device descriptor: %s.",
- libusb_error_name(ret));
- continue;
- }
-
- if (des.idVendor != devc->profile->vid
- || des.idProduct != devc->profile->pid)
- continue;
-
- if (sdi->status == SR_ST_INITIALIZING) {
- if (skip != sdi->index) {
- /* Skip devices of this type that aren't the one we want. */
- skip += 1;
- continue;
- }
- } else if (sdi->status == SR_ST_INACTIVE) {
- /*
- * This device is fully enumerated, so we need to find
- * this device by vendor, product, bus and address.
- */
- if (libusb_get_bus_number(devlist[i]) != usb->bus
- || libusb_get_device_address(devlist[i]) != usb->address)
- /* This is not the one. */
- continue;
- }
-
- if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
- if (usb->address == 0xff)
- /*
- * First time we touch this device after FW
- * upload, so we don't know the address yet.
- */
- usb->address = libusb_get_device_address(devlist[i]);
- } else {
- sr_err("Failed to open device: %s.",
- libusb_error_name(ret));
- break;
- }
-
- ret = command_get_fw_version(usb->devhdl, &vi);
- if (ret != SR_OK) {
- sr_err("Failed to get firmware version.");
- break;
- }
-
- ret = command_get_revid_version(usb->devhdl, &revid);
- if (ret != SR_OK) {
- sr_err("Failed to get REVID.");
- break;
- }
-
- /*
- * Changes in major version mean incompatible/API changes, so
- * bail out if we encounter an incompatible version.
- * Different minor versions are OK, they should be compatible.
- */
- if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) {
- sr_err("Expected firmware version %d.x, "
- "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR,
- vi.major, vi.minor);
- break;
- }
-
- sdi->status = SR_ST_ACTIVE;
- sr_info("Opened device %d on %d.%d, "
- "interface %d, firmware %d.%d.",
- sdi->index, usb->bus, usb->address,
- USB_INTERFACE, vi.major, vi.minor);
-
- sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.",
- revid, (revid != 1) ? " (FX2)" : "A (FX2LP)");
-
- break;
- }
- libusb_free_device_list(devlist, 1);
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- return SR_OK;
-}
-
-static int configure_probes(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- struct sr_probe *probe;
- GSList *l;
- int probe_bit, stage, i;
- char *tc;
-
- devc = sdi->priv;
- for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
- devc->trigger_mask[i] = 0;
- devc->trigger_value[i] = 0;
- }
-
- stage = -1;
- for (l = sdi->probes; l; l = l->next) {
- probe = (struct sr_probe *)l->data;
- if (probe->enabled == FALSE)
- continue;
-
- if (probe->index > 7)
- devc->sample_wide = TRUE;
-
- probe_bit = 1 << (probe->index);
- if (!(probe->trigger))
- continue;
-
- stage = 0;
- for (tc = probe->trigger; *tc; tc++) {
- devc->trigger_mask[stage] |= probe_bit;
- if (*tc == '1')
- devc->trigger_value[stage] |= probe_bit;
- stage++;
- if (stage > NUM_TRIGGER_STAGES)
- return SR_ERR;
- }
- }
-
- if (stage == -1)
- /*
- * We didn't configure any triggers, make sure acquisition
- * doesn't wait for any.
- */
- devc->trigger_stage = TRIGGER_FIRED;
- else
- devc->trigger_stage = 0;
-
- return SR_OK;
-}
-
-static struct dev_context *fx2lafw_dev_new(void)
-{
- struct dev_context *devc;
-
- if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
- sr_err("Device context malloc failed.");
- return NULL;
- }
-
- devc->profile = NULL;
- devc->fw_updated = 0;
- devc->cur_samplerate = 0;
- devc->limit_samples = 0;
- devc->sample_wide = 0;
-
- return devc;
-}
-
-static int dev_clear(void)
-{
- return std_dev_clear(di, NULL);
-}
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_dev_inst *sdi;
- struct sr_usb_dev_inst *usb;
- struct sr_probe *probe;
- struct sr_config *src;
- const struct fx2lafw_profile *prof;
- GSList *l, *devices, *conn_devices;
- struct libusb_device_descriptor des;
- libusb_device **devlist;
- int devcnt, num_logic_probes, ret, i, j;
- const char *conn;
-
- drvc = di->priv;
-
- conn = NULL;
- for (l = options; l; l = l->next) {
- src = l->data;
- switch (src->key) {
- case SR_CONF_CONN:
- conn = g_variant_get_string(src->data, NULL);
- break;
- }
- }
- if (conn)
- conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
- else
- conn_devices = NULL;
-
- /* Find all fx2lafw compatible devices and upload firmware to them. */
- devices = NULL;
- libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
- for (i = 0; devlist[i]; i++) {
- if (conn) {
- usb = NULL;
- for (l = conn_devices; l; l = l->next) {
- usb = l->data;
- if (usb->bus == libusb_get_bus_number(devlist[i])
- && usb->address == libusb_get_device_address(devlist[i]))
- break;
- }
- if (!l)
- /* This device matched none of the ones that
- * matched the conn specification. */
- continue;
- }
-
- if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
- sr_warn("Failed to get device descriptor: %s.",
- libusb_error_name(ret));
- continue;
- }
-
- prof = NULL;
- for (j = 0; supported_fx2[j].vid; j++) {
- if (des.idVendor == supported_fx2[j].vid &&
- des.idProduct == supported_fx2[j].pid) {
- prof = &supported_fx2[j];
- }
- }
-
- /* Skip if the device was not found. */
- if (!prof)
- continue;
-
- devcnt = g_slist_length(drvc->instances);
- sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
- prof->vendor, prof->model, prof->model_version);
- if (!sdi)
- return NULL;
- sdi->driver = di;
-
- /* Fill in probelist according to this device's profile. */
- num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
- for (j = 0; j < num_logic_probes; j++) {
- if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
- probe_names[j])))
- return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
- }
-
- devc = fx2lafw_dev_new();
- devc->profile = prof;
- sdi->priv = devc;
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
-
- if (check_conf_profile(devlist[i])) {
- /* Already has the firmware, so fix the new address. */
- sr_dbg("Found an fx2lafw device.");
- sdi->status = SR_ST_INACTIVE;
- sdi->inst_type = SR_INST_USB;
- sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
- libusb_get_device_address(devlist[i]), NULL);
- } else {
- if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
- prof->firmware) == SR_OK)
- /* Store when this device's FW was updated. */
- devc->fw_updated = g_get_monotonic_time();
- else
- sr_err("Firmware upload failed for "
- "device %d.", devcnt);
- sdi->inst_type = SR_INST_USB;
- sdi->conn = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]),
- 0xff, NULL);
- }
- }
- libusb_free_device_list(devlist, 1);
- g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
-
- return devices;
-}
-
-static GSList *dev_list(void)
-{
- return ((struct drv_context *)(di->priv))->instances;
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
- struct dev_context *devc;
- int ret;
- int64_t timediff_us, timediff_ms;
-
- devc = sdi->priv;
- usb = sdi->conn;
-
- /*
- * 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 = fx2lafw_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 = fx2lafw_dev_open(sdi);
- }
-
- if (ret != SR_OK) {
- sr_err("Unable to open device.");
- return SR_ERR;
- }
-
- ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
- if (ret != 0) {
- switch(ret) {
- case LIBUSB_ERROR_BUSY:
- sr_err("Unable to claim USB interface. Another "
- "program or driver has already claimed it.");
- break;
- case LIBUSB_ERROR_NO_DEVICE:
- sr_err("Device has been disconnected.");
- break;
- default:
- sr_err("Unable to claim interface: %s.",
- libusb_error_name(ret));
- break;
- }
-
- return SR_ERR;
- }
-
- if (devc->cur_samplerate == 0) {
- /* Samplerate hasn't been set; default to the slowest one. */
- devc->cur_samplerate = samplerates[0];
- }
-
- return SR_OK;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
-
- usb = sdi->conn;
- if (usb->devhdl == NULL)
- return SR_ERR;
-
- sr_info("fx2lafw: 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;
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
-}
-
-static int cleanup(void)
-{
- int ret;
- struct drv_context *drvc;
-
- if (!(drvc = di->priv))
- return SR_OK;
-
- ret = dev_clear();
-
- g_free(drvc);
- di->priv = NULL;
-
- return ret;
-}
-
-static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- char str[128];
-
- switch (id) {
- 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;
- case SR_CONF_SAMPLERATE:
- if (!sdi)
- return SR_ERR;
- devc = sdi->priv;
- *data = g_variant_new_uint64(devc->cur_samplerate);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- int ret;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- devc = sdi->priv;
-
- if (id == SR_CONF_SAMPLERATE) {
- devc->cur_samplerate = g_variant_get_uint64(data);
- ret = SR_OK;
- } else if (id == SR_CONF_LIMIT_SAMPLES) {
- devc->limit_samples = g_variant_get_uint64(data);
- ret = SR_OK;
- } else {
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
-{
- GVariant *gvar;
- GVariantBuilder gvb;
-
- (void)sdi;
-
- switch (key) {
- 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;
- case SR_CONF_SAMPLERATE:
- g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
- gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
- ARRAY_SIZE(samplerates), sizeof(uint64_t));
- g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_TRIGGER_TYPE:
- *data = g_variant_new_string(TRIGGER_TYPE);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int receive_data(int fd, int revents, void *cb_data)
-{
- struct timeval tv;
- struct drv_context *drvc;
-
- (void)fd;
- (void)revents;
- (void)cb_data;
-
- drvc = di->priv;
-
- tv.tv_sec = tv.tv_usec = 0;
- libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
-
- return TRUE;
-}
-
-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 void finish_acquisition(struct dev_context *devc)
-{
- struct sr_datafeed_packet packet;
- int i;
-
- /* Terminate session. */
- packet.type = SR_DF_END;
- sr_session_send(devc->cb_data, &packet);
-
- /* Remove fds from polling. */
- for (i = 0; devc->usbfd[i] != -1; i++)
- sr_source_remove(devc->usbfd[i]);
- g_free(devc->usbfd);
-
- devc->num_transfers = 0;
- g_free(devc->transfers);
-}
-
-static void free_transfer(struct libusb_transfer *transfer)
-{
- struct dev_context *devc;
- unsigned int i;
-
- devc = transfer->user_data;
-
- g_free(transfer->buffer);
- transfer->buffer = NULL;
- libusb_free_transfer(transfer);
-
- for (i = 0; i < devc->num_transfers; i++) {
- if (devc->transfers[i] == transfer) {
- devc->transfers[i] = NULL;
- break;
- }
- }
-
- devc->submitted_transfers--;
- if (devc->submitted_transfers == 0)
- finish_acquisition(devc);
-}
-
-static void resubmit_transfer(struct libusb_transfer *transfer)
-{
- int ret;
-
- if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS)
- return;
-
- free_transfer(transfer);
- /* TODO: Stop session? */
-
- sr_err("%s: %s", __func__, libusb_error_name(ret));
-}
-
-static void receive_transfer(struct libusb_transfer *transfer)
-{
- gboolean packet_has_error = FALSE;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_logic logic;
- struct dev_context *devc;
- int trigger_offset, i, sample_width, cur_sample_count;
- int trigger_offset_bytes;
- uint8_t *cur_buf;
-
- devc = transfer->user_data;
-
- /*
- * If acquisition has already ended, just free any queued up
- * transfer that come in.
- */
- if (devc->num_samples == -1) {
- free_transfer(transfer);
- return;
- }
-
- sr_info("receive_transfer(): status %d received %d bytes.",
- transfer->status, transfer->actual_length);
-
- /* Save incoming transfer before reusing the transfer struct. */
- cur_buf = transfer->buffer;
- sample_width = devc->sample_wide ? 2 : 1;
- cur_sample_count = transfer->actual_length / sample_width;
-
- switch (transfer->status) {
- case LIBUSB_TRANSFER_NO_DEVICE:
- abort_acquisition(devc);
- free_transfer(transfer);
- return;
- case LIBUSB_TRANSFER_COMPLETED:
- case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */
- break;
- default:
- packet_has_error = TRUE;
- break;
- }
-
- if (transfer->actual_length == 0 || packet_has_error) {
- devc->empty_transfer_count++;
- if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
- /*
- * The FX2 gave up. End the acquisition, the frontend
- * will work out that the samplecount is short.
- */
- abort_acquisition(devc);
- free_transfer(transfer);
- } else {
- resubmit_transfer(transfer);
- }
- return;
- } else {
- devc->empty_transfer_count = 0;
- }
-
- trigger_offset = 0;
- if (devc->trigger_stage >= 0) {
- for (i = 0; i < cur_sample_count; i++) {
-
- const uint16_t cur_sample = devc->sample_wide ?
- *((const uint16_t*)cur_buf + i) :
- *((const uint8_t*)cur_buf + i);
-
- if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) ==
- devc->trigger_value[devc->trigger_stage]) {
- /* Match on this trigger stage. */
- devc->trigger_buffer[devc->trigger_stage] = cur_sample;
- devc->trigger_stage++;
-
- if (devc->trigger_stage == NUM_TRIGGER_STAGES ||
- devc->trigger_mask[devc->trigger_stage] == 0) {
- /* Match on all trigger stages, we're done. */
- trigger_offset = i + 1;
-
- /*
- * TODO: Send pre-trigger buffer to session bus.
- * Tell the frontend we hit the trigger here.
- */
- packet.type = SR_DF_TRIGGER;
- packet.payload = NULL;
- sr_session_send(devc->cb_data, &packet);
-
- /*
- * Send the samples that triggered it,
- * since we're skipping past them.
- */
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.unitsize = sizeof(*devc->trigger_buffer);
- logic.length = devc->trigger_stage * logic.unitsize;
- logic.data = devc->trigger_buffer;
- sr_session_send(devc->cb_data, &packet);
-
- devc->trigger_stage = TRIGGER_FIRED;
- break;
- }
- } else if (devc->trigger_stage > 0) {
- /*
- * We had a match before, but not in the next sample. However, we may
- * have a match on this stage in the next bit -- trigger on 0001 will
- * fail on seeing 00001, so we need to go back to stage 0 -- but at
- * the next sample from the one that matched originally, which the
- * counter increment at the end of the loop takes care of.
- */
- i -= devc->trigger_stage;
- if (i < -1)
- i = -1; /* Oops, went back past this buffer. */
- /* Reset trigger stage. */
- devc->trigger_stage = 0;
- }
- }
- }
-
- if (devc->trigger_stage == TRIGGER_FIRED) {
- /* Send the incoming transfer to the session bus. */
- trigger_offset_bytes = trigger_offset * sample_width;
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.length = transfer->actual_length - trigger_offset_bytes;
- logic.unitsize = sample_width;
- logic.data = cur_buf + trigger_offset_bytes;
- sr_session_send(devc->cb_data, &packet);
-
- devc->num_samples += cur_sample_count;
- if (devc->limit_samples &&
- (unsigned int)devc->num_samples > devc->limit_samples) {
- abort_acquisition(devc);
- free_transfer(transfer);
- return;
- }
- } else {
- /*
- * TODO: Buffer pre-trigger data in capture
- * ratio-sized buffer.
- */
- }
-
- resubmit_transfer(transfer);
-}
-
-static unsigned int to_bytes_per_ms(unsigned int samplerate)
-{
- return samplerate / 1000;
-}
-
-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 * to_bytes_per_ms(devc->cur_samplerate);
- 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 * to_bytes_per_ms(devc->cur_samplerate) / 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 / to_bytes_per_ms(devc->cur_samplerate);
- return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
-{
- struct dev_context *devc;
- struct drv_context *drvc;
- struct sr_usb_dev_inst *usb;
- struct libusb_transfer *transfer;
- const struct libusb_pollfd **lupfd;
- unsigned int i, timeout, num_transfers;
- int ret;
- unsigned char *buf;
- size_t size;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- drvc = di->priv;
- devc = sdi->priv;
- usb = sdi->conn;
-
- /* Configures devc->trigger_* and devc->sample_wide */
- 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;
-
- timeout = get_timeout(devc);
- num_transfers = get_number_of_transfers(devc);
- size = get_buffer_size(devc);
- devc->submitted_transfers = 0;
-
- devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
- if (!devc->transfers) {
- sr_err("USB transfers malloc failed.");
- return SR_ERR_MALLOC;
- }
-
- 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.");
- return SR_ERR_MALLOC;
- }
- transfer = libusb_alloc_transfer(0);
- libusb_fill_bulk_transfer(transfer, usb->devhdl,
- 2 | LIBUSB_ENDPOINT_IN, buf, size,
- receive_transfer, devc, timeout);
- 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++;
- }
-
- lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
- for (i = 0; lupfd[i]; i++);
- if (!(devc->usbfd = g_try_malloc(sizeof(struct libusb_pollfd) * (i + 1))))
- return SR_ERR;
- for (i = 0; lupfd[i]; i++) {
- sr_source_add(lupfd[i]->fd, lupfd[i]->events,
- timeout, receive_data, NULL);
- devc->usbfd[i] = lupfd[i]->fd;
- }
- devc->usbfd[i] = -1;
- free(lupfd);
-
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
-
- if ((ret = command_start_acquisition (usb->devhdl,
- devc->cur_samplerate, devc->sample_wide)) != SR_OK) {
- abort_acquisition(devc);
- return ret;
- }
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- (void)cb_data;
-
- abort_acquisition(sdi->priv);
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
- .name = "fx2lafw",
- .longname = "fx2lafw (generic driver for FX2 based LAs)",
- .api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = dev_clear,
- .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,
-};
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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_FX2LAFW_FX2LAFW_H
-#define LIBSIGROK_HARDWARE_FX2LAFW_FX2LAFW_H
-
-#include <glib.h>
-
-/* Message logging helpers with subsystem-specific prefix string. */
-#define LOG_PREFIX "fx2lafw: "
-#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
-#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
-#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
-#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
-#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
-#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
-
-#define USB_INTERFACE 0
-#define USB_CONFIGURATION 1
-#define NUM_TRIGGER_STAGES 4
-#define TRIGGER_TYPE "01"
-
-#define MAX_RENUM_DELAY_MS 3000
-#define NUM_SIMUL_TRANSFERS 32
-#define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2)
-
-#define FX2LAFW_REQUIRED_VERSION_MAJOR 1
-
-#define MAX_8BIT_SAMPLE_RATE SR_MHZ(24)
-#define MAX_16BIT_SAMPLE_RATE SR_MHZ(12)
-
-/* 6 delay states of up to 256 clock ticks */
-#define MAX_SAMPLE_DELAY (6 * 256)
-
-/* Software trigger implementation: positive values indicate trigger stage. */
-#define TRIGGER_FIRED -1
-
-#define DEV_CAPS_16BIT_POS 0
-
-#define DEV_CAPS_16BIT (1 << DEV_CAPS_16BIT_POS)
-
-struct fx2lafw_profile {
- uint16_t vid;
- uint16_t pid;
-
- const char *vendor;
- const char *model;
- const char *model_version;
-
- const char *firmware;
-
- uint32_t dev_caps;
-};
-
-struct dev_context {
- const struct fx2lafw_profile *profile;
- /*
- * Since we can't keep track of an fx2lafw device after upgrading
- * the firmware (it renumerates into a different device address
- * after the upgrade) this is like a global lock. No device will open
- * until a proper delay after the last device was upgraded.
- */
- int64_t fw_updated;
-
- /* Device/capture settings */
- uint64_t cur_samplerate;
- uint64_t limit_samples;
-
- /* Operational settings */
- gboolean sample_wide;
- uint16_t trigger_mask[NUM_TRIGGER_STAGES];
- uint16_t trigger_value[NUM_TRIGGER_STAGES];
- int trigger_stage;
- uint16_t trigger_buffer[NUM_TRIGGER_STAGES];
-
- int num_samples;
- int submitted_transfers;
- int empty_transfer_count;
-
- void *cb_data;
- unsigned int num_transfers;
- struct libusb_transfer **transfers;
- int *usbfd;
-};
-
-#endif
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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/>.
+ */
+
+#include "protocol.h"
+
+/* Protocol commands */
+#define CMD_GET_FW_VERSION 0xb0
+#define CMD_START 0xb1
+#define CMD_GET_REVID_VERSION 0xb2
+
+#define CMD_START_FLAGS_WIDE_POS 5
+#define CMD_START_FLAGS_CLK_SRC_POS 6
+
+#define CMD_START_FLAGS_SAMPLE_8BIT (0 << CMD_START_FLAGS_WIDE_POS)
+#define CMD_START_FLAGS_SAMPLE_16BIT (1 << CMD_START_FLAGS_WIDE_POS)
+
+#define CMD_START_FLAGS_CLK_30MHZ (0 << CMD_START_FLAGS_CLK_SRC_POS)
+#define CMD_START_FLAGS_CLK_48MHZ (1 << CMD_START_FLAGS_CLK_SRC_POS)
+
+#pragma pack(push, 1)
+
+struct version_info {
+ uint8_t major;
+ uint8_t minor;
+};
+
+struct cmd_start_acquisition {
+ uint8_t flags;
+ uint8_t sample_delay_h;
+ uint8_t sample_delay_l;
+};
+
+#pragma pack(pop)
+
+static int command_get_fw_version(libusb_device_handle *devhdl,
+ struct version_info *vi)
+{
+ int ret;
+
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_IN, CMD_GET_FW_VERSION, 0x0000, 0x0000,
+ (unsigned char *)vi, sizeof(struct version_info), 100);
+
+ if (ret < 0) {
+ sr_err("Unable to get version info: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+static int command_get_revid_version(libusb_device_handle *devhdl,
+ uint8_t *revid)
+{
+ int ret;
+
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_IN, CMD_GET_REVID_VERSION, 0x0000, 0x0000,
+ revid, 1, 100);
+
+ if (ret < 0) {
+ sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int fx2lafw_command_start_acquisition(libusb_device_handle *devhdl,
+ uint64_t samplerate, gboolean samplewide)
+{
+ struct cmd_start_acquisition cmd;
+ int delay = 0, ret;
+
+ /* Compute the sample rate. */
+ if (samplewide && samplerate > MAX_16BIT_SAMPLE_RATE) {
+ sr_err("Unable to sample at %" PRIu64 "Hz "
+ "when collecting 16-bit samples.", samplerate);
+ return SR_ERR;
+ }
+
+ if ((SR_MHZ(48) % samplerate) == 0) {
+ cmd.flags = CMD_START_FLAGS_CLK_48MHZ;
+ delay = SR_MHZ(48) / samplerate - 1;
+ if (delay > MAX_SAMPLE_DELAY)
+ delay = 0;
+ }
+
+ if (delay == 0 && (SR_MHZ(30) % samplerate) == 0) {
+ cmd.flags = CMD_START_FLAGS_CLK_30MHZ;
+ delay = SR_MHZ(30) / samplerate - 1;
+ }
+
+ sr_info("GPIF delay = %d, clocksource = %sMHz.", delay,
+ (cmd.flags & CMD_START_FLAGS_CLK_48MHZ) ? "48" : "30");
+
+ if (delay <= 0 || delay > MAX_SAMPLE_DELAY) {
+ sr_err("Unable to sample at %" PRIu64 "Hz.", samplerate);
+ return SR_ERR;
+ }
+
+ cmd.sample_delay_h = (delay >> 8) & 0xff;
+ cmd.sample_delay_l = delay & 0xff;
+
+ /* Select the sampling width. */
+ cmd.flags |= samplewide ? CMD_START_FLAGS_SAMPLE_16BIT :
+ CMD_START_FLAGS_SAMPLE_8BIT;
+
+ /* Send the control message. */
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
+ (unsigned char *)&cmd, sizeof(cmd), 100);
+ if (ret < 0) {
+ sr_err("Unable to send start command: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+/**
+ * Check the USB configuration to determine if this is an fx2lafw device.
+ *
+ * @return TRUE if the device's configuration profile match fx2lafw
+ * configuration, FALSE otherwise.
+ */
+SR_PRIV gboolean fx2lafw_check_conf_profile(libusb_device *dev)
+{
+ struct libusb_device_descriptor des;
+ struct libusb_device_handle *hdl;
+ gboolean ret;
+ unsigned char strdesc[64];
+
+ hdl = NULL;
+ ret = FALSE;
+ while (!ret) {
+ /* Assume the FW has not been loaded, unless proven wrong. */
+ if (libusb_get_device_descriptor(dev, &des) != 0)
+ break;
+
+ if (libusb_open(dev, &hdl) != 0)
+ break;
+
+ if (libusb_get_string_descriptor_ascii(hdl,
+ des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
+ break;
+ if (strncmp((const char *)strdesc, "sigrok", 6))
+ break;
+
+ if (libusb_get_string_descriptor_ascii(hdl,
+ des.iProduct, strdesc, sizeof(strdesc)) < 0)
+ break;
+ if (strncmp((const char *)strdesc, "fx2lafw", 7))
+ break;
+
+ /* If we made it here, it must be an fx2lafw. */
+ ret = TRUE;
+ }
+ if (hdl)
+ libusb_close(hdl);
+
+ return ret;
+}
+
+SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
+{
+ libusb_device **devlist;
+ struct sr_usb_dev_inst *usb;
+ struct libusb_device_descriptor des;
+ struct dev_context *devc;
+ struct drv_context *drvc;
+ struct version_info vi;
+ int ret, skip, i, device_count;
+ uint8_t revid;
+
+ drvc = di->priv;
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ if (sdi->status == SR_ST_ACTIVE)
+ /* Device is already in use. */
+ return SR_ERR;
+
+ skip = 0;
+ device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ if (device_count < 0) {
+ sr_err("Failed to get device list: %s.",
+ libusb_error_name(device_count));
+ return SR_ERR;
+ }
+
+ for (i = 0; i < device_count; i++) {
+ if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
+ sr_err("Failed to get device descriptor: %s.",
+ libusb_error_name(ret));
+ continue;
+ }
+
+ if (des.idVendor != devc->profile->vid
+ || des.idProduct != devc->profile->pid)
+ continue;
+
+ if (sdi->status == SR_ST_INITIALIZING) {
+ if (skip != sdi->index) {
+ /* Skip devices of this type that aren't the one we want. */
+ skip += 1;
+ continue;
+ }
+ } else if (sdi->status == SR_ST_INACTIVE) {
+ /*
+ * This device is fully enumerated, so we need to find
+ * this device by vendor, product, bus and address.
+ */
+ if (libusb_get_bus_number(devlist[i]) != usb->bus
+ || libusb_get_device_address(devlist[i]) != usb->address)
+ /* This is not the one. */
+ continue;
+ }
+
+ if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
+ if (usb->address == 0xff)
+ /*
+ * First time we touch this device after FW
+ * upload, so we don't know the address yet.
+ */
+ usb->address = libusb_get_device_address(devlist[i]);
+ } else {
+ sr_err("Failed to open device: %s.",
+ libusb_error_name(ret));
+ break;
+ }
+
+ ret = command_get_fw_version(usb->devhdl, &vi);
+ if (ret != SR_OK) {
+ sr_err("Failed to get firmware version.");
+ break;
+ }
+
+ ret = command_get_revid_version(usb->devhdl, &revid);
+ if (ret != SR_OK) {
+ sr_err("Failed to get REVID.");
+ break;
+ }
+
+ /*
+ * Changes in major version mean incompatible/API changes, so
+ * bail out if we encounter an incompatible version.
+ * Different minor versions are OK, they should be compatible.
+ */
+ if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) {
+ sr_err("Expected firmware version %d.x, "
+ "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR,
+ vi.major, vi.minor);
+ break;
+ }
+
+ sdi->status = SR_ST_ACTIVE;
+ sr_info("Opened device %d on %d.%d, "
+ "interface %d, firmware %d.%d.",
+ sdi->index, usb->bus, usb->address,
+ USB_INTERFACE, vi.major, vi.minor);
+
+ sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.",
+ revid, (revid != 1) ? " (FX2)" : "A (FX2LP)");
+
+ break;
+ }
+ libusb_free_device_list(devlist, 1);
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR;
+
+ return SR_OK;
+}
+
+SR_PRIV int fx2lafw_configure_probes(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_probe *probe;
+ GSList *l;
+ int probe_bit, stage, i;
+ char *tc;
+
+ devc = sdi->priv;
+ for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
+ devc->trigger_mask[i] = 0;
+ devc->trigger_value[i] = 0;
+ }
+
+ stage = -1;
+ for (l = sdi->probes; l; l = l->next) {
+ probe = (struct sr_probe *)l->data;
+ if (probe->enabled == FALSE)
+ continue;
+
+ if (probe->index > 7)
+ devc->sample_wide = TRUE;
+
+ probe_bit = 1 << (probe->index);
+ if (!(probe->trigger))
+ continue;
+
+ stage = 0;
+ for (tc = probe->trigger; *tc; tc++) {
+ devc->trigger_mask[stage] |= probe_bit;
+ if (*tc == '1')
+ devc->trigger_value[stage] |= probe_bit;
+ stage++;
+ if (stage > NUM_TRIGGER_STAGES)
+ return SR_ERR;
+ }
+ }
+
+ if (stage == -1)
+ /*
+ * We didn't configure any triggers, make sure acquisition
+ * doesn't wait for any.
+ */
+ devc->trigger_stage = TRIGGER_FIRED;
+ else
+ devc->trigger_stage = 0;
+
+ return SR_OK;
+}
+
+SR_PRIV struct dev_context *fx2lafw_dev_new(void)
+{
+ struct dev_context *devc;
+
+ if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
+ sr_err("Device context malloc failed.");
+ return NULL;
+ }
+
+ devc->profile = NULL;
+ devc->fw_updated = 0;
+ devc->cur_samplerate = 0;
+ devc->limit_samples = 0;
+ devc->sample_wide = 0;
+
+ return devc;
+}
+
+SR_PRIV void fx2lafw_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 void finish_acquisition(struct dev_context *devc)
+{
+ struct sr_datafeed_packet packet;
+ int i;
+
+ /* Terminate session. */
+ packet.type = SR_DF_END;
+ sr_session_send(devc->cb_data, &packet);
+
+ /* Remove fds from polling. */
+ for (i = 0; devc->usbfd[i] != -1; i++)
+ sr_source_remove(devc->usbfd[i]);
+ g_free(devc->usbfd);
+
+ devc->num_transfers = 0;
+ g_free(devc->transfers);
+}
+
+static void free_transfer(struct libusb_transfer *transfer)
+{
+ struct dev_context *devc;
+ unsigned int i;
+
+ devc = transfer->user_data;
+
+ g_free(transfer->buffer);
+ transfer->buffer = NULL;
+ libusb_free_transfer(transfer);
+
+ for (i = 0; i < devc->num_transfers; i++) {
+ if (devc->transfers[i] == transfer) {
+ devc->transfers[i] = NULL;
+ break;
+ }
+ }
+
+ devc->submitted_transfers--;
+ if (devc->submitted_transfers == 0)
+ finish_acquisition(devc);
+}
+
+static void resubmit_transfer(struct libusb_transfer *transfer)
+{
+ int ret;
+
+ if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS)
+ return;
+
+ free_transfer(transfer);
+ /* TODO: Stop session? */
+
+ sr_err("%s: %s", __func__, libusb_error_name(ret));
+}
+
+SR_PRIV void fx2lafw_receive_transfer(struct libusb_transfer *transfer)
+{
+ gboolean packet_has_error = FALSE;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_logic logic;
+ struct dev_context *devc;
+ int trigger_offset, i, sample_width, cur_sample_count;
+ int trigger_offset_bytes;
+ uint8_t *cur_buf;
+
+ devc = transfer->user_data;
+
+ /*
+ * If acquisition has already ended, just free any queued up
+ * transfer that come in.
+ */
+ if (devc->num_samples == -1) {
+ free_transfer(transfer);
+ return;
+ }
+
+ sr_info("receive_transfer(): status %d received %d bytes.",
+ transfer->status, transfer->actual_length);
+
+ /* Save incoming transfer before reusing the transfer struct. */
+ cur_buf = transfer->buffer;
+ sample_width = devc->sample_wide ? 2 : 1;
+ cur_sample_count = transfer->actual_length / sample_width;
+
+ switch (transfer->status) {
+ case LIBUSB_TRANSFER_NO_DEVICE:
+ fx2lafw_abort_acquisition(devc);
+ free_transfer(transfer);
+ return;
+ case LIBUSB_TRANSFER_COMPLETED:
+ case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */
+ break;
+ default:
+ packet_has_error = TRUE;
+ break;
+ }
+
+ if (transfer->actual_length == 0 || packet_has_error) {
+ devc->empty_transfer_count++;
+ if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
+ /*
+ * The FX2 gave up. End the acquisition, the frontend
+ * will work out that the samplecount is short.
+ */
+ fx2lafw_abort_acquisition(devc);
+ free_transfer(transfer);
+ } else {
+ resubmit_transfer(transfer);
+ }
+ return;
+ } else {
+ devc->empty_transfer_count = 0;
+ }
+
+ trigger_offset = 0;
+ if (devc->trigger_stage >= 0) {
+ for (i = 0; i < cur_sample_count; i++) {
+
+ const uint16_t cur_sample = devc->sample_wide ?
+ *((const uint16_t*)cur_buf + i) :
+ *((const uint8_t*)cur_buf + i);
+
+ if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) ==
+ devc->trigger_value[devc->trigger_stage]) {
+ /* Match on this trigger stage. */
+ devc->trigger_buffer[devc->trigger_stage] = cur_sample;
+ devc->trigger_stage++;
+
+ if (devc->trigger_stage == NUM_TRIGGER_STAGES ||
+ devc->trigger_mask[devc->trigger_stage] == 0) {
+ /* Match on all trigger stages, we're done. */
+ trigger_offset = i + 1;
+
+ /*
+ * TODO: Send pre-trigger buffer to session bus.
+ * Tell the frontend we hit the trigger here.
+ */
+ packet.type = SR_DF_TRIGGER;
+ packet.payload = NULL;
+ sr_session_send(devc->cb_data, &packet);
+
+ /*
+ * Send the samples that triggered it,
+ * since we're skipping past them.
+ */
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.unitsize = sizeof(*devc->trigger_buffer);
+ logic.length = devc->trigger_stage * logic.unitsize;
+ logic.data = devc->trigger_buffer;
+ sr_session_send(devc->cb_data, &packet);
+
+ devc->trigger_stage = TRIGGER_FIRED;
+ break;
+ }
+ } else if (devc->trigger_stage > 0) {
+ /*
+ * We had a match before, but not in the next sample. However, we may
+ * have a match on this stage in the next bit -- trigger on 0001 will
+ * fail on seeing 00001, so we need to go back to stage 0 -- but at
+ * the next sample from the one that matched originally, which the
+ * counter increment at the end of the loop takes care of.
+ */
+ i -= devc->trigger_stage;
+ if (i < -1)
+ i = -1; /* Oops, went back past this buffer. */
+ /* Reset trigger stage. */
+ devc->trigger_stage = 0;
+ }
+ }
+ }
+
+ if (devc->trigger_stage == TRIGGER_FIRED) {
+ /* Send the incoming transfer to the session bus. */
+ trigger_offset_bytes = trigger_offset * sample_width;
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = transfer->actual_length - trigger_offset_bytes;
+ logic.unitsize = sample_width;
+ logic.data = cur_buf + trigger_offset_bytes;
+ sr_session_send(devc->cb_data, &packet);
+
+ devc->num_samples += cur_sample_count;
+ if (devc->limit_samples &&
+ (unsigned int)devc->num_samples > devc->limit_samples) {
+ fx2lafw_abort_acquisition(devc);
+ free_transfer(transfer);
+ return;
+ }
+ } else {
+ /*
+ * TODO: Buffer pre-trigger data in capture
+ * ratio-sized buffer.
+ */
+ }
+
+ resubmit_transfer(transfer);
+}
+
+static unsigned int to_bytes_per_ms(unsigned int samplerate)
+{
+ return samplerate / 1000;
+}
+
+SR_PRIV size_t fx2lafw_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 * to_bytes_per_ms(devc->cur_samplerate);
+ return (s + 511) & ~511;
+}
+
+SR_PRIV unsigned int fx2lafw_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 * to_bytes_per_ms(devc->cur_samplerate) /
+ fx2lafw_get_buffer_size(devc));
+
+ if (n > NUM_SIMUL_TRANSFERS)
+ return NUM_SIMUL_TRANSFERS;
+
+ return n;
+}
+
+SR_PRIV unsigned int fx2lafw_get_timeout(struct dev_context *devc)
+{
+ size_t total_size;
+ unsigned int timeout;
+
+ total_size = fx2lafw_get_buffer_size(devc) *
+ fx2lafw_get_number_of_transfers(devc);
+ timeout = total_size / to_bytes_per_ms(devc->cur_samplerate);
+ return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
+}
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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_FX2LAFW_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H
+
+#include <glib.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libusb.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+/* Message logging helpers with subsystem-specific prefix string. */
+#define LOG_PREFIX "fx2lafw: "
+#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
+#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
+#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
+#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
+#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
+#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
+
+#define USB_INTERFACE 0
+#define USB_CONFIGURATION 1
+#define NUM_TRIGGER_STAGES 4
+#define TRIGGER_TYPE "01"
+
+#define MAX_RENUM_DELAY_MS 3000
+#define NUM_SIMUL_TRANSFERS 32
+#define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2)
+
+#define FX2LAFW_REQUIRED_VERSION_MAJOR 1
+
+#define MAX_8BIT_SAMPLE_RATE SR_MHZ(24)
+#define MAX_16BIT_SAMPLE_RATE SR_MHZ(12)
+
+/* 6 delay states of up to 256 clock ticks */
+#define MAX_SAMPLE_DELAY (6 * 256)
+
+/* Software trigger implementation: positive values indicate trigger stage. */
+#define TRIGGER_FIRED -1
+
+#define DEV_CAPS_16BIT_POS 0
+
+#define DEV_CAPS_16BIT (1 << DEV_CAPS_16BIT_POS)
+
+struct fx2lafw_profile {
+ uint16_t vid;
+ uint16_t pid;
+
+ const char *vendor;
+ const char *model;
+ const char *model_version;
+
+ const char *firmware;
+
+ uint32_t dev_caps;
+};
+
+struct dev_context {
+ const struct fx2lafw_profile *profile;
+ /*
+ * Since we can't keep track of an fx2lafw device after upgrading
+ * the firmware (it renumerates into a different device address
+ * after the upgrade) this is like a global lock. No device will open
+ * until a proper delay after the last device was upgraded.
+ */
+ int64_t fw_updated;
+
+ /* Device/capture settings */
+ uint64_t cur_samplerate;
+ uint64_t limit_samples;
+
+ /* Operational settings */
+ gboolean sample_wide;
+ uint16_t trigger_mask[NUM_TRIGGER_STAGES];
+ uint16_t trigger_value[NUM_TRIGGER_STAGES];
+ int trigger_stage;
+ uint16_t trigger_buffer[NUM_TRIGGER_STAGES];
+
+ int num_samples;
+ int submitted_transfers;
+ int empty_transfer_count;
+
+ void *cb_data;
+ unsigned int num_transfers;
+ struct libusb_transfer **transfers;
+ int *usbfd;
+};
+
+SR_PRIV int fx2lafw_command_start_acquisition(libusb_device_handle *devhdl,
+ uint64_t samplerate, gboolean samplewide);
+SR_PRIV gboolean fx2lafw_check_conf_profile(libusb_device *dev);
+SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di);
+SR_PRIV int fx2lafw_configure_probes(const struct sr_dev_inst *sdi);
+SR_PRIV struct dev_context *fx2lafw_dev_new(void);
+SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc);
+SR_PRIV void fx2lafw_receive_transfer(struct libusb_transfer *transfer);
+SR_PRIV size_t fx2lafw_get_buffer_size(struct dev_context *devc);
+SR_PRIV unsigned int fx2lafw_get_number_of_transfers(struct dev_context *devc);
+SR_PRIV unsigned int fx2lafw_get_timeout(struct dev_context *devc);
+
+#endif
projects / libsigrok.git / commitdiff