hardware/center-3xx/protocol.c \
hardware/center-3xx/api.c
endif
-if HW_CHRONOVU_LA8
+if HW_CHRONOVU_LA
libsigrok_la_SOURCES += \
- hardware/chronovu-la8/protocol.h \
- hardware/chronovu-la8/protocol.c \
- hardware/chronovu-la8/api.c
+ hardware/chronovu-la/protocol.h \
+ hardware/chronovu-la/protocol.c \
+ hardware/chronovu-la/api.c
endif
if HW_COLEAD_SLM
libsigrok_la_SOURCES += \
- brymen-dmm
- cem-dt-885x
- center-3xx (including all subdrivers)
- - chronovu-la8
+ - chronovu-la
- colead-slm
- demo
- fluke-dmm
- alsa
- asix-sigma
- brymen-bm86x
- - chronovu-la8
+ - chronovu-la
- demo
- fx2lafw
- hantek-dso
We plan to fix this though, so that it'll work on all other OSes, too.
-ChronoVu LA8 USB VID/PIDs
--------------------------
+ChronoVu LA8/LA16 USB VID/PIDs
+------------------------------
-The ChronoVu LA8 logic analyzer is available in two revisions. Previously,
-the LA8 shipped with a USB VID/PID of 0403:6001, which is the standard ID
+The ChronoVu LA8/LA16 logic analyzer is available in two revisions. Previously,
+the device shipped with a USB VID/PID of 0403:6001, which is the standard ID
for FTDI FT232 USB chips.
-Since this made it hard to distinguish the LA8 from any other device
+Since this made it hard to distinguish the LA8/LA16 from any other device
with this FTDI chip connected to the PC, the vendor later shipped the
-LA8 with a USB VID/PID of 0403:8867.
+device with a USB VID/PID of 0403:8867.
-The 'chronovu-la8' driver in libsigrok supports both VID/PID pairs and
-automatically finds devices with either VID/PID pair. However, currently
-the driver will assume any device with VID/PID 0403:6001 is a ChronoVu LA8.
+The 'chronovu-la' driver in libsigrok supports both VID/PID pairs and
+automatically finds devices with either VID/PID pair.
OLS
[HW_CENTER_3XX="$enableval"],
[HW_CENTER_3XX=$HW_ENABLED_DEFAULT])
-AC_ARG_ENABLE(chronovu-la8, AC_HELP_STRING([--enable-chronovu-la8],
- [enable ChronoVu LA8 support [default=yes]]),
- [HW_CHRONOVU_LA8="$enableval"],
- [HW_CHRONOVU_LA8=$HW_ENABLED_DEFAULT])
+AC_ARG_ENABLE(chronovu-la, AC_HELP_STRING([--enable-chronovu-la],
+ [enable ChronoVu LA support [default=yes]]),
+ [HW_CHRONOVU_LA="$enableval"],
+ [HW_CHRONOVU_LA=$HW_ENABLED_DEFAULT])
AC_ARG_ENABLE(colead-slm, AC_HELP_STRING([--enable-colead-slm],
[enable Colead SLM support [default=yes]]),
[CFLAGS="$CFLAGS $libftdi_CFLAGS";
LIBS="$LIBS $libftdi_LIBS";
SR_PKGLIBS="$SR_PKGLIBS libftdi"],
- [HW_ASIX_SIGMA="no"; HW_CHRONOVU_LA8="no"; HW_IKALOGIC_SCANAPLUS="no"])
+ [HW_ASIX_SIGMA="no"; HW_CHRONOVU_LA="no"; HW_IKALOGIC_SCANAPLUS="no"])
# libudev is only needed for some hardware drivers. Disable them if not found.
PKG_CHECK_MODULES([libudev], [libudev >= 151],
AC_DEFINE(HAVE_HW_CENTER_3XX, 1, [Center 3xx support])
fi
-AM_CONDITIONAL(HW_CHRONOVU_LA8, test x$HW_CHRONOVU_LA8 = xyes)
-if test "x$HW_CHRONOVU_LA8" = "xyes"; then
- AC_DEFINE(HAVE_HW_CHRONOVU_LA8, 1, [ChronoVu LA8 support])
+AM_CONDITIONAL(HW_CHRONOVU_LA, test x$HW_CHRONOVU_LA = xyes)
+if test "x$HW_CHRONOVU_LA" = "xyes"; then
+ AC_DEFINE(HAVE_HW_CHRONOVU_LA, 1, [ChronoVu LA support])
fi
AM_CONDITIONAL(HW_COLEAD_SLM, test x$HW_COLEAD_SLM = xyes)
echo " - brymen-dmm...................... $HW_BRYMEN_DMM"
echo " - cem-dt-885x..................... $HW_CEM_DT_885X"
echo " - center-3xx...................... $HW_CENTER_3XX"
-echo " - chronovu-la8.................... $HW_CHRONOVU_LA8"
+echo " - chronovu-la..................... $HW_CHRONOVU_LA"
echo " - colead-slm...................... $HW_COLEAD_SLM"
echo " - conrad-digi-35-cpu.............. $HW_CONRAD_DIGI_35_CPU"
echo " - demo............................ $HW_DEMO"
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "protocol.h"
+
+SR_PRIV struct sr_dev_driver chronovu_la_driver_info;
+static struct sr_dev_driver *di = &chronovu_la_driver_info;
+
+static const int32_t hwcaps[] = {
+ SR_CONF_LOGIC_ANALYZER,
+ SR_CONF_SAMPLERATE,
+ SR_CONF_LIMIT_MSEC, /* TODO: Not yet implemented. */
+ SR_CONF_LIMIT_SAMPLES, /* TODO: Not yet implemented. */
+};
+
+/* The ChronoVu LA8/LA16 can have multiple VID/PID pairs. */
+static struct {
+ uint16_t vid;
+ uint16_t pid;
+ int model;
+ const char *iproduct;
+} vid_pid[] = {
+ { 0x0403, 0x6001, CHRONOVU_LA8, "ChronoVu LA8" },
+ { 0x0403, 0x8867, CHRONOVU_LA8, "ChronoVu LA8" },
+ { 0x0403, 0x6001, CHRONOVU_LA16, "ChronoVu LA16" },
+ { 0x0403, 0x8867, CHRONOVU_LA16, "ChronoVu LA16" },
+};
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
+
+static void clear_helper(void *priv)
+{
+ struct dev_context *devc;
+
+ devc = priv;
+
+ ftdi_free(devc->ftdic);
+ g_free(devc->final_buf);
+}
+
+static int dev_clear(void)
+{
+ return std_dev_clear(di, clear_helper);
+}
+
+static int init(struct sr_context *sr_ctx)
+{
+ return std_init(sr_ctx, di, LOG_PREFIX);
+}
+
+static int add_device(int idx, int model, GSList **devices)
+{
+ int ret;
+ unsigned int i;
+ struct sr_dev_inst *sdi;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_channel *ch;
+
+ ret = SR_OK;
+
+ drvc = di->priv;
+
+ /* Allocate memory for our private device context. */
+ devc = g_try_malloc(sizeof(struct dev_context));
+
+ /* Set some sane defaults. */
+ devc->prof = &cv_profiles[model];
+ devc->ftdic = NULL; /* Will be set in the open() API call. */
+ devc->cur_samplerate = 0; /* Set later (different for LA8/LA16). */
+ devc->limit_msec = 0;
+ devc->limit_samples = 0;
+ devc->cb_data = NULL;
+ memset(devc->mangled_buf, 0, BS);
+ devc->final_buf = NULL;
+ devc->trigger_pattern = 0x0000; /* Irrelevant, see trigger_mask. */
+ devc->trigger_mask = 0x0000; /* All channels: "don't care". */
+ devc->trigger_edgemask = 0x0000; /* All channels: "state triggered". */
+ devc->trigger_found = 0;
+ devc->done = 0;
+ devc->block_counter = 0;
+ devc->divcount = 0;
+ devc->usb_vid = vid_pid[idx].vid;
+ devc->usb_pid = vid_pid[idx].pid;
+ memset(devc->samplerates, 0, sizeof(uint64_t) * 255);
+
+ /* Allocate memory where we'll store the de-mangled data. */
+ if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) {
+ sr_err("Failed to allocate memory for sample buffer.");
+ ret = SR_ERR_MALLOC;
+ goto err_free_devc;
+ }
+
+ /* We now know the device, set its max. samplerate as default. */
+ devc->cur_samplerate = devc->prof->max_samplerate;
+
+ /* Register the device with libsigrok. */
+ sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING,
+ "ChronoVu", devc->prof->modelname, NULL);
+ if (!sdi) {
+ sr_err("Failed to create device instance.");
+ ret = SR_ERR;
+ goto err_free_final_buf;
+ }
+ sdi->driver = di;
+ sdi->priv = devc;
+
+ for (i = 0; i < devc->prof->num_channels; i++) {
+ if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+ cv_channel_names[i]))) {
+ ret = SR_ERR;
+ goto err_free_dev_inst;
+ }
+ sdi->channels = g_slist_append(sdi->channels, ch);
+ }
+
+ *devices = g_slist_append(*devices, sdi);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+
+ return SR_OK;
+
+err_free_dev_inst:
+ sr_dev_inst_free(sdi);
+err_free_final_buf:
+ g_free(devc->final_buf);
+err_free_devc:
+ g_free(devc);
+
+ return ret;
+}
+
+static GSList *scan(GSList *options)
+{
+ int ret;
+ unsigned int i;
+ GSList *devices;
+ struct ftdi_context *ftdic;
+
+ (void)options;
+
+ devices = NULL;
+
+ /* Allocate memory for the FTDI context and initialize it. */
+ if (!(ftdic = ftdi_new())) {
+ sr_err("Failed to initialize libftdi.");
+ return NULL;
+ }
+
+ /* Check for LA8 and/or LA16 devices with various VID/PIDs. */
+ for (i = 0; i < ARRAY_SIZE(vid_pid); i++) {
+ ret = ftdi_usb_open_desc(ftdic, vid_pid[i].vid,
+ vid_pid[i].pid, vid_pid[i].iproduct, NULL);
+ if (ret < 0)
+ continue; /* No device found. */
+
+ sr_dbg("Found %s device (%04x:%04x).",
+ vid_pid[i].iproduct, vid_pid[i].vid, vid_pid[i].pid);
+
+ if ((ret = add_device(i, vid_pid[i].model, &devices)) < 0)
+ sr_dbg("Failed to add device: %d.", ret);
+
+ if ((ret = ftdi_usb_close(ftdic)) < 0)
+ sr_dbg("Failed to close FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(ftdic));
+ }
+
+ /* Close USB device, deinitialize and free the FTDI context. */
+ ftdi_free(ftdic);
+ ftdic = NULL;
+
+ return devices;
+}
+
+static GSList *dev_list(void)
+{
+ return ((struct drv_context *)(di->priv))->instances;
+}
+
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ int ret;
+
+ ret = SR_ERR;
+
+ if (!(devc = sdi->priv))
+ return SR_ERR_BUG;
+
+ /* Allocate memory for the FTDI context and initialize it. */
+ if (!(devc->ftdic = ftdi_new())) {
+ sr_err("Failed to initialize libftdi.");
+ return SR_ERR;
+ }
+
+ sr_dbg("Opening %s device (%04x:%04x).", devc->prof->modelname,
+ devc->usb_vid, devc->usb_pid);
+
+ /* Open the device. */
+ if ((ret = ftdi_usb_open_desc(devc->ftdic, devc->usb_vid,
+ devc->usb_pid, devc->prof->iproduct, NULL)) < 0) {
+ sr_err("Failed to open FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_ftdi_free;
+ }
+ sr_dbg("Device opened successfully.");
+
+ /* Purge RX/TX buffers in the FTDI chip. */
+ if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
+ sr_err("Failed to purge FTDI buffers (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_ftdi_free;
+ }
+ sr_dbg("FTDI buffers purged successfully.");
+
+ /* Enable flow control in the FTDI chip. */
+ if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) {
+ sr_err("Failed to enable FTDI flow control (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_ftdi_free;
+ }
+ sr_dbg("FTDI flow control enabled successfully.");
+
+ /* Wait 100ms. */
+ g_usleep(100 * 1000);
+
+ sdi->status = SR_ST_ACTIVE;
+
+ return SR_OK;
+
+err_ftdi_free:
+ ftdi_free(devc->ftdic); /* Close device (if open), free FTDI context. */
+ devc->ftdic = NULL;
+ return ret;
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+ int ret;
+ struct dev_context *devc;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_OK;
+
+ devc = sdi->priv;
+
+ if (devc->ftdic && (ret = ftdi_usb_close(devc->ftdic)) < 0)
+ sr_err("Failed to close FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ sdi->status = SR_ST_INACTIVE;
+
+ return SR_OK;
+}
+
+static int cleanup(void)
+{
+ return dev_clear();
+}
+
+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
+{
+ struct dev_context *devc;
+
+ (void)cg;
+
+ switch (id) {
+ case SR_CONF_SAMPLERATE:
+ if (!sdi || !(devc = sdi->priv))
+ return SR_ERR_BUG;
+ *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,
+ const struct sr_channel_group *cg)
+{
+ struct dev_context *devc;
+
+ (void)cg;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ if (!(devc = sdi->priv))
+ return SR_ERR_BUG;
+
+ switch (id) {
+ case SR_CONF_SAMPLERATE:
+ if (cv_set_samplerate(sdi, g_variant_get_uint64(data)) < 0)
+ return SR_ERR;
+ break;
+ case SR_CONF_LIMIT_MSEC:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_msec = g_variant_get_uint64(data);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_samples = g_variant_get_uint64(data);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
+{
+ GVariant *gvar, *grange[2];
+ GVariantBuilder gvb;
+ struct dev_context *devc;
+
+ (void)cg;
+
+ switch (key) {
+ 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:
+ if (!sdi || !sdi->priv || !(devc = sdi->priv))
+ return SR_ERR_BUG;
+ cv_fill_samplerates_if_needed(sdi);
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
+ devc->samplerates,
+ ARRAY_SIZE(devc->samplerates),
+ sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ grange[0] = g_variant_new_uint64(0);
+ grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES);
+ *data = g_variant_new_tuple(grange, 2);
+ break;
+ case SR_CONF_TRIGGER_TYPE:
+ if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof)
+ return SR_ERR_BUG;
+ *data = g_variant_new_string(devc->prof->trigger_type);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int receive_data(int fd, int revents, void *cb_data)
+{
+ int i, ret;
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+
+ (void)fd;
+ (void)revents;
+
+ if (!(sdi = cb_data)) {
+ sr_err("cb_data was NULL.");
+ return FALSE;
+ }
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return FALSE;
+ }
+
+ if (!devc->ftdic) {
+ sr_err("devc->ftdic was NULL.");
+ return FALSE;
+ }
+
+ /* Get one block of data. */
+ if ((ret = cv_read_block(devc)) < 0) {
+ sr_err("Failed to read data block: %d.", ret);
+ dev_acquisition_stop(sdi, sdi);
+ return FALSE;
+ }
+
+ /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */
+ if (devc->block_counter != (NUM_BLOCKS - 1)) {
+ devc->block_counter++;
+ return TRUE;
+ }
+
+ sr_dbg("Sampling finished, sending data to session bus now.");
+
+ /* All data was received and demangled, send it to the session bus. */
+ for (i = 0; i < NUM_BLOCKS; i++)
+ cv_send_block_to_session_bus(devc, i);
+
+ dev_acquisition_stop(sdi, sdi);
+
+ return TRUE;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+{
+ struct dev_context *devc;
+ uint8_t buf[8];
+ int bytes_to_write, bytes_written;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ if (!devc->ftdic) {
+ sr_err("devc->ftdic was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ devc->divcount = cv_samplerate_to_divcount(sdi, devc->cur_samplerate);
+ if (devc->divcount == 0xff) {
+ sr_err("Invalid divcount/samplerate.");
+ return SR_ERR;
+ }
+
+ if (cv_configure_channels(sdi) != SR_OK) {
+ sr_err("Failed to configure channels.");
+ return SR_ERR;
+ }
+
+ /* Fill acquisition parameters into buf[]. */
+ if (devc->prof->model == CHRONOVU_LA8) {
+ buf[0] = devc->divcount;
+ buf[1] = 0xff; /* This byte must always be 0xff. */
+ buf[2] = devc->trigger_pattern & 0xff;
+ buf[3] = devc->trigger_mask & 0xff;
+ bytes_to_write = 4;
+ } else {
+ buf[0] = devc->divcount;
+ buf[1] = 0xff; /* This byte must always be 0xff. */
+ buf[2] = (devc->trigger_pattern & 0xff00) >> 8; /* LSB */
+ buf[3] = (devc->trigger_pattern & 0x00ff) >> 0; /* MSB */
+ buf[4] = (devc->trigger_mask & 0xff00) >> 8; /* LSB */
+ buf[5] = (devc->trigger_mask & 0x00ff) >> 0; /* MSB */
+ buf[6] = (devc->trigger_edgemask & 0xff00) >> 8; /* LSB */
+ buf[7] = (devc->trigger_edgemask & 0x00ff) >> 0; /* MSB */
+ bytes_to_write = 8;
+ }
+
+ /* Start acquisition. */
+ bytes_written = cv_write(devc, buf, bytes_to_write);
+
+ if (bytes_written < 0 || bytes_written != bytes_to_write) {
+ sr_err("Acquisition failed to start.");
+ return SR_ERR;
+ }
+
+ sr_dbg("Hardware acquisition started successfully.");
+
+ devc->cb_data = cb_data;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Time when we should be done (for detecting trigger timeouts). */
+ devc->done = (devc->divcount + 1) * devc->prof->trigger_constant +
+ g_get_monotonic_time() + (10 * G_TIME_SPAN_SECOND);
+ devc->block_counter = 0;
+ devc->trigger_found = 0;
+
+ /* Hook up a dummy handler to receive data from the device. */
+ sr_source_add(-1, G_IO_IN, 0, receive_data, (void *)sdi);
+
+ return SR_OK;
+}
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+{
+ struct sr_datafeed_packet packet;
+
+ (void)sdi;
+
+ sr_dbg("Stopping acquisition.");
+ sr_source_remove(-1);
+
+ /* Send end packet to the session bus. */
+ sr_dbg("Sending SR_DF_END.");
+ packet.type = SR_DF_END;
+ sr_session_send(cb_data, &packet);
+
+ return SR_OK;
+}
+
+SR_PRIV struct sr_dev_driver chronovu_la_driver_info = {
+ .name = "chronovu-la",
+ .longname = "ChronoVu LA8/LA16",
+ .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) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "protocol.h"
+
+SR_PRIV const struct cv_profile cv_profiles[] = {
+ { CHRONOVU_LA8, "LA8", "ChronoVu LA8", 8, SR_MHZ(100), "01",
+ 0.8388608 },
+ { CHRONOVU_LA16, "LA16", "ChronoVu LA16", 16, SR_MHZ(200), "01rf",
+ 0.042 },
+ { 0, NULL, NULL, 0, 0, NULL, 0.0 },
+};
+
+/* LA8: channels are numbered 0-7. LA16: channels are numbered 0-15. */
+SR_PRIV const char *cv_channel_names[] = {
+ "0", "1", "2", "3", "4", "5", "6", "7",
+ "8", "9", "10", "11", "12", "13", "14", "15",
+};
+
+static int close_usb_reset_sequencer(struct dev_context *devc);
+
+SR_PRIV void cv_fill_samplerates_if_needed(const struct sr_dev_inst *sdi)
+{
+ int i;
+ struct dev_context *devc;
+
+ devc = sdi->priv;
+
+ if (devc->samplerates[0] != 0)
+ return;
+
+ for (i = 0; i < 255; i++)
+ devc->samplerates[254 - i] = devc->prof->max_samplerate / (i + 1);
+}
+
+/**
+ * Check if the given samplerate is supported by the hardware.
+ *
+ * @param sdi Device instance.
+ * @param samplerate The samplerate (in Hz) to check.
+ *
+ * @return 1 if the samplerate is supported/valid, 0 otherwise.
+ */
+static int is_valid_samplerate(const struct sr_dev_inst *sdi,
+ uint64_t samplerate)
+{
+ int i;
+ struct dev_context *devc;
+
+ devc = sdi->priv;
+
+ cv_fill_samplerates_if_needed(sdi);
+
+ for (i = 0; i < 255; i++) {
+ if (devc->samplerates[i] == samplerate)
+ return 1;
+ }
+
+ sr_err("Invalid samplerate (%" PRIu64 "Hz).", samplerate);
+
+ return 0;
+}
+
+/**
+ * Convert a samplerate (in Hz) to the 'divcount' value the device wants.
+ *
+ * The divcount value can be 0x00 - 0xfe (0xff is not valid).
+ *
+ * LA8:
+ * sample period = (divcount + 1) * 10ns.
+ * divcount = 0x00: 10ns period, 100MHz samplerate.
+ * divcount = 0xfe: 2550ns period, 392.15kHz samplerate.
+ *
+ * LA16:
+ * sample period = (divcount + 1) * 5ns.
+ * divcount = 0x00: 5ns period, 200MHz samplerate.
+ * divcount = 0xfe: 1275ns period, ~784.31kHz samplerate.
+ *
+ * @param sdi Device instance.
+ * @param samplerate The samplerate in Hz.
+ *
+ * @return The divcount value as needed by the hardware, or 0xff upon errors.
+ */
+SR_PRIV uint8_t cv_samplerate_to_divcount(const struct sr_dev_inst *sdi,
+ uint64_t samplerate)
+{
+ struct dev_context *devc;
+
+ devc = sdi->priv;
+
+ if (samplerate == 0) {
+ sr_err("Can't convert invalid samplerate of 0 Hz.");
+ return 0xff;
+ }
+
+ if (!is_valid_samplerate(sdi, samplerate)) {
+ sr_err("Can't get divcount, samplerate invalid.");
+ return 0xff;
+ }
+
+ return (devc->prof->max_samplerate / samplerate) - 1;
+}
+
+/**
+ * Write data of a certain length to the FTDI device.
+ *
+ * @param devc The struct containing private per-device-instance data. Must not
+ * be NULL. devc->ftdic must not be NULL either.
+ * @param buf The buffer containing the data to write. Must not be NULL.
+ * @param size The number of bytes to write. Must be > 0.
+ *
+ * @return The number of bytes written, or a negative value upon errors.
+ */
+SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size)
+{
+ int bytes_written;
+
+ /* Note: Caller ensures devc/devc->ftdic/buf != NULL and size > 0. */
+
+ bytes_written = ftdi_write_data(devc->ftdic, buf, size);
+
+ if (bytes_written < 0) {
+ sr_err("Failed to write data (%d): %s.",
+ bytes_written, ftdi_get_error_string(devc->ftdic));
+ (void) close_usb_reset_sequencer(devc); /* Ignore errors. */
+ } else if (bytes_written != size) {
+ sr_err("Failed to write data, only %d/%d bytes written.",
+ size, bytes_written);
+ (void) close_usb_reset_sequencer(devc); /* Ignore errors. */
+ }
+
+ return bytes_written;
+}
+
+/**
+ * Read a certain amount of bytes from the FTDI device.
+ *
+ * @param devc The struct containing private per-device-instance data. Must not
+ * be NULL. devc->ftdic must not be NULL either.
+ * @param buf The buffer where the received data will be stored. Must not
+ * be NULL.
+ * @param size The number of bytes to read. Must be >= 1.
+ *
+ * @return The number of bytes read, or a negative value upon errors.
+ */
+static int cv_read(struct dev_context *devc, uint8_t *buf, int size)
+{
+ int bytes_read;
+
+ /* Note: Caller ensures devc/devc->ftdic/buf != NULL and size > 0. */
+
+ bytes_read = ftdi_read_data(devc->ftdic, buf, size);
+
+ if (bytes_read < 0) {
+ sr_err("Failed to read data (%d): %s.",
+ bytes_read, ftdi_get_error_string(devc->ftdic));
+ } else if (bytes_read != size) {
+ // sr_err("Failed to read data, only %d/%d bytes read.",
+ // bytes_read, size);
+ }
+
+ return bytes_read;
+}
+
+/**
+ * Close the USB port and reset the sequencer logic.
+ *
+ * @param devc The struct containing private per-device-instance data.
+ *
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
+ */
+static int close_usb_reset_sequencer(struct dev_context *devc)
+{
+ /* Magic sequence of bytes for resetting the sequencer logic. */
+ uint8_t buf[8] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};
+ int ret;
+
+ /* Note: Caller checked that devc and devc->ftdic != NULL. */
+
+ if (devc->ftdic->usb_dev) {
+ /* Reset the sequencer logic, then wait 100ms. */
+ sr_dbg("Resetting sequencer logic.");
+ (void) cv_write(devc, buf, 8); /* Ignore errors. */
+ g_usleep(100 * 1000);
+
+ /* Purge FTDI buffers, then reset and close the FTDI device. */
+ sr_dbg("Purging buffers, resetting+closing FTDI device.");
+
+ /* Log errors, but ignore them (i.e., don't abort). */
+ if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0)
+ sr_err("Failed to purge FTDI buffers (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ if ((ret = ftdi_usb_reset(devc->ftdic)) < 0)
+ sr_err("Failed to reset FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ if ((ret = ftdi_usb_close(devc->ftdic)) < 0)
+ sr_err("Failed to close FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ }
+
+ /* Close USB device, deinitialize and free the FTDI context. */
+ ftdi_free(devc->ftdic);
+ devc->ftdic = NULL;
+
+ return SR_OK;
+}
+
+/**
+ * Reset the ChronoVu device.
+ *
+ * A reset is required after a failed read/write operation or upon timeouts.
+ *
+ * @param devc The struct containing private per-device-instance data.
+ *
+ * @return SR_OK upon success, SR_ERR upon failure.
+ */
+static int reset_device(struct dev_context *devc)
+{
+ uint8_t buf[BS];
+ gint64 done, now;
+ int bytes_read;
+
+ /* Note: Caller checked that devc and devc->ftdic != NULL. */
+
+ sr_dbg("Resetting the device.");
+
+ /*
+ * Purge pending read data from the FTDI hardware FIFO until
+ * no more data is left, or a timeout occurs (after 20s).
+ */
+ done = (20 * G_TIME_SPAN_SECOND) + g_get_monotonic_time();
+ do {
+ /* Try to read bytes until none are left (or errors occur). */
+ bytes_read = cv_read(devc, (uint8_t *)&buf, BS);
+ now = g_get_monotonic_time();
+ } while ((done > now) && (bytes_read > 0));
+
+ /* Reset the sequencer logic and close the USB port. */
+ (void) close_usb_reset_sequencer(devc); /* Ignore errors. */
+
+ sr_dbg("Device reset finished.");
+
+ return SR_OK;
+}
+
+SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ const struct sr_channel *ch;
+ const GSList *l;
+ uint16_t channel_bit;
+ char *tc;
+
+ devc = sdi->priv;
+ devc->trigger_pattern = 0x0000; /* Default to "low" trigger. */
+ devc->trigger_mask = 0x0000; /* Default to "don't care". */
+ devc->trigger_edgemask = 0x0000; /* Default to "state triggered". */
+
+ for (l = sdi->channels; l; l = l->next) {
+ ch = (struct sr_channel *)l->data;
+
+ if (!ch) {
+ sr_err("%s: channel was NULL.", __func__);
+ return SR_ERR;
+ }
+
+ /* Skip disabled channels. */
+ if (!ch->enabled)
+ continue;
+
+ /* Skip (enabled) channels with no configured trigger. */
+ if (!ch->trigger)
+ continue;
+
+ /* Note: Must only be run if ch->trigger != NULL. */
+ if (ch->index < 0 || ch->index > (int)devc->prof->num_channels - 1) {
+ sr_err("Invalid channel index %d, must be "
+ "between 0 and %d.", ch->index,
+ devc->prof->num_channels - 1);
+ return SR_ERR;
+ }
+
+ channel_bit = (1 << (ch->index));
+
+ /* Configure the channel's trigger pattern/mask/edgemask. */
+ for (tc = ch->trigger; tc && *tc; tc++) {
+ devc->trigger_mask |= channel_bit;
+
+ /* Sanity check, LA8 only supports low/high trigger. */
+ if ((devc->prof->model == CHRONOVU_LA8) &&
+ (*tc != '0' && *tc != '1')) {
+ sr_err("Invalid trigger '%c', only "
+ "'0'/'1' supported.", *tc);
+ return SR_ERR;
+ }
+
+ /* state: 1 == high, edge: 1 == rising edge. */
+ if (*tc == '1' || *tc == 'r')
+ devc->trigger_pattern |= channel_bit;
+
+ /* LA16 (but not LA8) supports edge triggering. */
+ if ((devc->prof->model == CHRONOVU_LA16)) {
+ if (*tc == 'r' || *tc == 'f')
+ devc->trigger_edgemask |= channel_bit;
+ }
+
+ }
+ }
+
+ sr_dbg("Trigger pattern/mask/edgemask = 0x%04x / 0x%04x / 0x%04x.",
+ devc->trigger_pattern, devc->trigger_mask,
+ devc->trigger_edgemask);
+
+ return SR_OK;
+}
+
+SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
+{
+ struct dev_context *devc;
+
+ /* Note: Caller checked that sdi and sdi->priv != NULL. */
+
+ devc = sdi->priv;
+
+ sr_spew("Trying to set samplerate to %" PRIu64 "Hz.", samplerate);
+
+ cv_fill_samplerates_if_needed(sdi);
+
+ /* Check if this is a samplerate supported by the hardware. */
+ if (!is_valid_samplerate(sdi, samplerate)) {
+ sr_dbg("Failed to set invalid samplerate (%" PRIu64 "Hz).",
+ samplerate);
+ return SR_ERR;
+ }
+
+ devc->cur_samplerate = samplerate;
+
+ sr_dbg("Samplerate set to %" PRIu64 "Hz.", devc->cur_samplerate);
+
+ return SR_OK;
+}
+
+/**
+ * Get a block of data from the device.
+ *
+ * @param devc The struct containing private per-device-instance data. Must not
+ * be NULL. devc->ftdic must not be NULL either.
+ *
+ * @return SR_OK upon success, or SR_ERR upon errors.
+ */
+SR_PRIV int cv_read_block(struct dev_context *devc)
+{
+ int i, byte_offset, m, mi, p, q, index, bytes_read;
+ gint64 now;
+
+ /* Note: Caller checked that devc and devc->ftdic != NULL. */
+
+ sr_spew("Reading block %d.", devc->block_counter);
+
+ bytes_read = cv_read(devc, devc->mangled_buf, BS);
+
+ /* If first block read got 0 bytes, retry until success or timeout. */
+ if ((bytes_read == 0) && (devc->block_counter == 0)) {
+ do {
+ sr_spew("Reading block 0 (again).");
+ /* Note: If bytes_read < 0 cv_read() will log errors. */
+ bytes_read = cv_read(devc, devc->mangled_buf, BS);
+ now = g_get_monotonic_time();
+ } while ((devc->done > now) && (bytes_read == 0));
+ }
+
+ /* Check if block read was successful or a timeout occured. */
+ if (bytes_read != BS) {
+ sr_err("Trigger timed out. Bytes read: %d.", bytes_read);
+ (void) reset_device(devc); /* Ignore errors. */
+ return SR_ERR;
+ }
+
+ /* De-mangle the data. */
+ sr_spew("Demangling block %d.", devc->block_counter);
+ byte_offset = devc->block_counter * BS;
+ m = byte_offset / (1024 * 1024);
+ mi = m * (1024 * 1024);
+ for (i = 0; i < BS; i++) {
+ if (devc->prof->model == CHRONOVU_LA8) {
+ p = i & (1 << 0);
+ index = m * 2 + (((byte_offset + i) - mi) / 2) * 16;
+ index += (devc->divcount == 0) ? p : (1 - p);
+ } else {
+ p = i & (1 << 0);
+ q = i & (1 << 1);
+ index = m * 4 + (((byte_offset + i) - mi) / 4) * 32;
+ index += q + (1 - p);
+ }
+ devc->final_buf[index] = devc->mangled_buf[i];
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block)
+{
+ int i;
+ uint8_t sample, expected_sample;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_logic logic;
+ int trigger_point; /* Relative trigger point (in this block). */
+
+ /* Note: Caller ensures devc/devc->ftdic != NULL and block > 0. */
+
+ /* TODO: Implement/test proper trigger support for the LA16. */
+
+ /* Check if we can find the trigger condition in this block. */
+ trigger_point = -1;
+ expected_sample = devc->trigger_pattern & devc->trigger_mask;
+ for (i = 0; i < BS; i++) {
+ /* Don't continue if the trigger was found previously. */
+ if (devc->trigger_found)
+ break;
+
+ /*
+ * Also, don't continue if triggers are "don't care", i.e. if
+ * no trigger conditions were specified by the user. In that
+ * case we don't want to send an SR_DF_TRIGGER packet at all.
+ */
+ if (devc->trigger_mask == 0x0000)
+ break;
+
+ sample = *(devc->final_buf + (block * BS) + i);
+
+ if ((sample & devc->trigger_mask) == expected_sample) {
+ trigger_point = i;
+ devc->trigger_found = 1;
+ break;
+ }
+ }
+
+ /* If no trigger was found, send one SR_DF_LOGIC packet. */
+ if (trigger_point == -1) {
+ /* Send an SR_DF_LOGIC packet to the session bus. */
+ sr_spew("Sending SR_DF_LOGIC packet (%d bytes) for "
+ "block %d.", BS, block);
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = BS;
+ logic.unitsize = devc->prof->num_channels / 8;
+ logic.data = devc->final_buf + (block * BS);
+ sr_session_send(devc->cb_data, &packet);
+ return;
+ }
+
+ /*
+ * We found the trigger, so some special handling is needed. We have
+ * to send an SR_DF_LOGIC packet with the samples before the trigger
+ * (if any), then the SD_DF_TRIGGER packet itself, then another
+ * SR_DF_LOGIC packet with the samples after the trigger (if any).
+ */
+
+ /* TODO: Send SR_DF_TRIGGER packet before or after the actual sample? */
+
+ /* If at least one sample is located before the trigger... */
+ if (trigger_point > 0) {
+ /* Send pre-trigger SR_DF_LOGIC packet to the session bus. */
+ sr_spew("Sending pre-trigger SR_DF_LOGIC packet, "
+ "start = %d, length = %d.", block * BS, trigger_point);
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = trigger_point;
+ logic.unitsize = devc->prof->num_channels / 8;
+ logic.data = devc->final_buf + (block * BS);
+ sr_session_send(devc->cb_data, &packet);
+ }
+
+ /* Send the SR_DF_TRIGGER packet to the session bus. */
+ sr_spew("Sending SR_DF_TRIGGER packet, sample = %d.",
+ (block * BS) + trigger_point);
+ packet.type = SR_DF_TRIGGER;
+ packet.payload = NULL;
+ sr_session_send(devc->cb_data, &packet);
+
+ /* If at least one sample is located after the trigger... */
+ if (trigger_point < (BS - 1)) {
+ /* Send post-trigger SR_DF_LOGIC packet to the session bus. */
+ sr_spew("Sending post-trigger SR_DF_LOGIC packet, "
+ "start = %d, length = %d.",
+ (block * BS) + trigger_point, BS - trigger_point);
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = BS - trigger_point;
+ logic.unitsize = devc->prof->num_channels / 8;
+ logic.data = devc->final_buf + (block * BS) + trigger_point;
+ sr_session_send(devc->cb_data, &packet);
+ }
+}
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LIBSIGROK_HARDWARE_CHRONOVU_LA_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_CHRONOVU_LA_PROTOCOL_H
+
+#include <glib.h>
+#include <ftdi.h>
+#include <stdint.h>
+#include <string.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "la8/la16"
+
+#define SDRAM_SIZE (8 * 1024 * 1024)
+#define MAX_NUM_SAMPLES SDRAM_SIZE
+
+#define BS 4096 /* Block size */
+#define NUM_BLOCKS 2048 /* Number of blocks */
+
+enum {
+ CHRONOVU_LA8,
+ CHRONOVU_LA16,
+};
+
+struct cv_profile {
+ int model;
+ const char *modelname;
+ const char *iproduct; /* USB iProduct string */
+ unsigned int num_channels;
+ uint64_t max_samplerate;
+ const char *trigger_type;
+ float trigger_constant;
+};
+
+/* Private, per-device-instance driver context. */
+struct dev_context {
+ /** Device profile struct for this device. */
+ const struct cv_profile *prof;
+
+ /** FTDI device context (used by libftdi). */
+ struct ftdi_context *ftdic;
+
+ /** The currently configured samplerate of the device. */
+ uint64_t cur_samplerate;
+
+ /** The current sampling limit (in ms). */
+ uint64_t limit_msec;
+
+ /** The current sampling limit (in number of samples). */
+ uint64_t limit_samples;
+
+ void *cb_data;
+
+ /**
+ * A buffer containing some (mangled) samples from the device.
+ * Format: Pretty mangled-up (due to hardware reasons), see code.
+ */
+ uint8_t mangled_buf[BS];
+
+ /**
+ * An 8MB buffer where we'll store the de-mangled samples.
+ * LA8: Each sample is 1 byte, MSB is channel 7, LSB is channel 0.
+ * LA16: Each sample is 2 bytes, MSB is channel 15, LSB is channel 0.
+ */
+ uint8_t *final_buf;
+
+ /**
+ * Trigger pattern.
+ * A 1 bit matches a high signal, 0 matches a low signal on a channel.
+ *
+ * If the resp. 'trigger_edgemask' bit is set, 1 means "rising edge",
+ * and 0 means "falling edge".
+ */
+ uint16_t trigger_pattern;
+
+ /**
+ * Trigger mask.
+ * A 1 bit means "must match trigger_pattern", 0 means "don't care".
+ */
+ uint16_t trigger_mask;
+
+ /**
+ * Trigger edge mask.
+ * A 1 bit means "edge triggered", 0 means "state triggered".
+ *
+ * Edge triggering is only supported on LA16 (but not LA8).
+ */
+ uint16_t trigger_edgemask;
+
+ /** Tells us whether an SR_DF_TRIGGER packet was already sent. */
+ int trigger_found;
+
+ /** Used for keeping track how much time has passed. */
+ gint64 done;
+
+ /** Counter/index for the data block to be read. */
+ int block_counter;
+
+ /** The divcount value (determines the sample period). */
+ uint8_t divcount;
+
+ /** This ChronoVu device's USB VID/PID. */
+ uint16_t usb_vid;
+ uint16_t usb_pid;
+
+ /** Samplerates supported by this device. */
+ uint64_t samplerates[255];
+};
+
+/* protocol.c */
+extern SR_PRIV const char *cv_channel_names[];
+extern const struct cv_profile cv_profiles[];
+SR_PRIV void cv_fill_samplerates_if_needed(const struct sr_dev_inst *sdi);
+SR_PRIV uint8_t cv_samplerate_to_divcount(const struct sr_dev_inst *sdi,
+ uint64_t samplerate);
+SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size);
+SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi);
+SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
+SR_PRIV int cv_read_block(struct dev_context *devc);
+SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block);
+
+#endif
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "protocol.h"
-
-SR_PRIV struct sr_dev_driver chronovu_la8_driver_info;
-static struct sr_dev_driver *di = &chronovu_la8_driver_info;
-
-static const int32_t hwcaps[] = {
- SR_CONF_LOGIC_ANALYZER,
- SR_CONF_SAMPLERATE,
- SR_CONF_LIMIT_MSEC, /* TODO: Not yet implemented. */
- SR_CONF_LIMIT_SAMPLES, /* TODO: Not yet implemented. */
-};
-
-/* The ChronoVu LA8/LA16 can have multiple VID/PID pairs. */
-static struct {
- uint16_t vid;
- uint16_t pid;
- int model;
- const char *iproduct;
-} vid_pid[] = {
- { 0x0403, 0x6001, CHRONOVU_LA8, "ChronoVu LA8" },
- { 0x0403, 0x8867, CHRONOVU_LA8, "ChronoVu LA8" },
- { 0x0403, 0x6001, CHRONOVU_LA16, "ChronoVu LA16" },
- { 0x0403, 0x8867, CHRONOVU_LA16, "ChronoVu LA16" },
-};
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
-
-static void clear_helper(void *priv)
-{
- struct dev_context *devc;
-
- devc = priv;
-
- ftdi_free(devc->ftdic);
- g_free(devc->final_buf);
-}
-
-static int dev_clear(void)
-{
- return std_dev_clear(di, clear_helper);
-}
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static int add_device(int idx, int model, GSList **devices)
-{
- int ret;
- unsigned int i;
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_channel *ch;
-
- ret = SR_OK;
-
- drvc = di->priv;
-
- /* Allocate memory for our private device context. */
- devc = g_try_malloc(sizeof(struct dev_context));
-
- /* Set some sane defaults. */
- devc->prof = &cv_profiles[model];
- devc->ftdic = NULL; /* Will be set in the open() API call. */
- devc->cur_samplerate = 0; /* Set later (different for LA8/LA16). */
- devc->limit_msec = 0;
- devc->limit_samples = 0;
- devc->cb_data = NULL;
- memset(devc->mangled_buf, 0, BS);
- devc->final_buf = NULL;
- devc->trigger_pattern = 0x0000; /* Irrelevant, see trigger_mask. */
- devc->trigger_mask = 0x0000; /* All channels: "don't care". */
- devc->trigger_edgemask = 0x0000; /* All channels: "state triggered". */
- devc->trigger_found = 0;
- devc->done = 0;
- devc->block_counter = 0;
- devc->divcount = 0;
- devc->usb_vid = vid_pid[idx].vid;
- devc->usb_pid = vid_pid[idx].pid;
- memset(devc->samplerates, 0, sizeof(uint64_t) * 255);
-
- /* Allocate memory where we'll store the de-mangled data. */
- if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) {
- sr_err("Failed to allocate memory for sample buffer.");
- ret = SR_ERR_MALLOC;
- goto err_free_devc;
- }
-
- /* We now know the device, set its max. samplerate as default. */
- devc->cur_samplerate = devc->prof->max_samplerate;
-
- /* Register the device with libsigrok. */
- sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING,
- "ChronoVu", devc->prof->modelname, NULL);
- if (!sdi) {
- sr_err("Failed to create device instance.");
- ret = SR_ERR;
- goto err_free_final_buf;
- }
- sdi->driver = di;
- sdi->priv = devc;
-
- for (i = 0; i < devc->prof->num_channels; i++) {
- if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
- cv_channel_names[i]))) {
- ret = SR_ERR;
- goto err_free_dev_inst;
- }
- sdi->channels = g_slist_append(sdi->channels, ch);
- }
-
- *devices = g_slist_append(*devices, sdi);
- drvc->instances = g_slist_append(drvc->instances, sdi);
-
- return SR_OK;
-
-err_free_dev_inst:
- sr_dev_inst_free(sdi);
-err_free_final_buf:
- g_free(devc->final_buf);
-err_free_devc:
- g_free(devc);
-
- return ret;
-}
-
-static GSList *scan(GSList *options)
-{
- int ret;
- unsigned int i;
- GSList *devices;
- struct ftdi_context *ftdic;
-
- (void)options;
-
- devices = NULL;
-
- /* Allocate memory for the FTDI context and initialize it. */
- if (!(ftdic = ftdi_new())) {
- sr_err("Failed to initialize libftdi.");
- return NULL;
- }
-
- /* Check for LA8 and/or LA16 devices with various VID/PIDs. */
- for (i = 0; i < ARRAY_SIZE(vid_pid); i++) {
- ret = ftdi_usb_open_desc(ftdic, vid_pid[i].vid,
- vid_pid[i].pid, vid_pid[i].iproduct, NULL);
- if (ret < 0)
- continue; /* No device found. */
-
- sr_dbg("Found %s device (%04x:%04x).",
- vid_pid[i].iproduct, vid_pid[i].vid, vid_pid[i].pid);
-
- if ((ret = add_device(i, vid_pid[i].model, &devices)) < 0)
- sr_dbg("Failed to add device: %d.", ret);
-
- if ((ret = ftdi_usb_close(ftdic)) < 0)
- sr_dbg("Failed to close FTDI device (%d): %s.",
- ret, ftdi_get_error_string(ftdic));
- }
-
- /* Close USB device, deinitialize and free the FTDI context. */
- ftdi_free(ftdic);
- ftdic = NULL;
-
- return devices;
-}
-
-static GSList *dev_list(void)
-{
- return ((struct drv_context *)(di->priv))->instances;
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- int ret;
-
- ret = SR_ERR;
-
- if (!(devc = sdi->priv))
- return SR_ERR_BUG;
-
- /* Allocate memory for the FTDI context and initialize it. */
- if (!(devc->ftdic = ftdi_new())) {
- sr_err("Failed to initialize libftdi.");
- return SR_ERR;
- }
-
- sr_dbg("Opening %s device (%04x:%04x).", devc->prof->modelname,
- devc->usb_vid, devc->usb_pid);
-
- /* Open the device. */
- if ((ret = ftdi_usb_open_desc(devc->ftdic, devc->usb_vid,
- devc->usb_pid, devc->prof->iproduct, NULL)) < 0) {
- sr_err("Failed to open FTDI device (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- goto err_ftdi_free;
- }
- sr_dbg("Device opened successfully.");
-
- /* Purge RX/TX buffers in the FTDI chip. */
- if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
- sr_err("Failed to purge FTDI buffers (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- goto err_ftdi_free;
- }
- sr_dbg("FTDI buffers purged successfully.");
-
- /* Enable flow control in the FTDI chip. */
- if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) {
- sr_err("Failed to enable FTDI flow control (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- goto err_ftdi_free;
- }
- sr_dbg("FTDI flow control enabled successfully.");
-
- /* Wait 100ms. */
- g_usleep(100 * 1000);
-
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-
-err_ftdi_free:
- ftdi_free(devc->ftdic); /* Close device (if open), free FTDI context. */
- devc->ftdic = NULL;
- return ret;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- int ret;
- struct dev_context *devc;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_OK;
-
- devc = sdi->priv;
-
- if (devc->ftdic && (ret = ftdi_usb_close(devc->ftdic)) < 0)
- sr_err("Failed to close FTDI device (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
-}
-
-static int cleanup(void)
-{
- return dev_clear();
-}
-
-static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
-
- (void)cg;
-
- switch (id) {
- case SR_CONF_SAMPLERATE:
- if (!sdi || !(devc = sdi->priv))
- return SR_ERR_BUG;
- *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,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
-
- (void)cg;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!(devc = sdi->priv))
- return SR_ERR_BUG;
-
- switch (id) {
- case SR_CONF_SAMPLERATE:
- if (cv_set_samplerate(sdi, g_variant_get_uint64(data)) < 0)
- return SR_ERR;
- break;
- case SR_CONF_LIMIT_MSEC:
- if (g_variant_get_uint64(data) == 0)
- return SR_ERR_ARG;
- devc->limit_msec = g_variant_get_uint64(data);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- if (g_variant_get_uint64(data) == 0)
- return SR_ERR_ARG;
- devc->limit_samples = g_variant_get_uint64(data);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- GVariant *gvar, *grange[2];
- GVariantBuilder gvb;
- struct dev_context *devc;
-
- (void)cg;
-
- switch (key) {
- 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:
- if (!sdi || !sdi->priv || !(devc = sdi->priv))
- return SR_ERR_BUG;
- cv_fill_samplerates_if_needed(sdi);
- g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
- gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
- devc->samplerates,
- ARRAY_SIZE(devc->samplerates),
- sizeof(uint64_t));
- g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- grange[0] = g_variant_new_uint64(0);
- grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES);
- *data = g_variant_new_tuple(grange, 2);
- break;
- case SR_CONF_TRIGGER_TYPE:
- if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof)
- return SR_ERR_BUG;
- *data = g_variant_new_string(devc->prof->trigger_type);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int receive_data(int fd, int revents, void *cb_data)
-{
- int i, ret;
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
-
- (void)fd;
- (void)revents;
-
- if (!(sdi = cb_data)) {
- sr_err("cb_data was NULL.");
- return FALSE;
- }
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return FALSE;
- }
-
- if (!devc->ftdic) {
- sr_err("devc->ftdic was NULL.");
- return FALSE;
- }
-
- /* Get one block of data. */
- if ((ret = cv_read_block(devc)) < 0) {
- sr_err("Failed to read data block: %d.", ret);
- dev_acquisition_stop(sdi, sdi);
- return FALSE;
- }
-
- /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */
- if (devc->block_counter != (NUM_BLOCKS - 1)) {
- devc->block_counter++;
- return TRUE;
- }
-
- sr_dbg("Sampling finished, sending data to session bus now.");
-
- /* All data was received and demangled, send it to the session bus. */
- for (i = 0; i < NUM_BLOCKS; i++)
- cv_send_block_to_session_bus(devc, i);
-
- dev_acquisition_stop(sdi, sdi);
-
- return TRUE;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
-{
- struct dev_context *devc;
- uint8_t buf[8];
- int bytes_to_write, bytes_written;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- if (!devc->ftdic) {
- sr_err("devc->ftdic was NULL.");
- return SR_ERR_BUG;
- }
-
- devc->divcount = cv_samplerate_to_divcount(sdi, devc->cur_samplerate);
- if (devc->divcount == 0xff) {
- sr_err("Invalid divcount/samplerate.");
- return SR_ERR;
- }
-
- if (cv_configure_channels(sdi) != SR_OK) {
- sr_err("Failed to configure channels.");
- return SR_ERR;
- }
-
- /* Fill acquisition parameters into buf[]. */
- if (devc->prof->model == CHRONOVU_LA8) {
- buf[0] = devc->divcount;
- buf[1] = 0xff; /* This byte must always be 0xff. */
- buf[2] = devc->trigger_pattern & 0xff;
- buf[3] = devc->trigger_mask & 0xff;
- bytes_to_write = 4;
- } else {
- buf[0] = devc->divcount;
- buf[1] = 0xff; /* This byte must always be 0xff. */
- buf[2] = (devc->trigger_pattern & 0xff00) >> 8; /* LSB */
- buf[3] = (devc->trigger_pattern & 0x00ff) >> 0; /* MSB */
- buf[4] = (devc->trigger_mask & 0xff00) >> 8; /* LSB */
- buf[5] = (devc->trigger_mask & 0x00ff) >> 0; /* MSB */
- buf[6] = (devc->trigger_edgemask & 0xff00) >> 8; /* LSB */
- buf[7] = (devc->trigger_edgemask & 0x00ff) >> 0; /* MSB */
- bytes_to_write = 8;
- }
-
- /* Start acquisition. */
- bytes_written = cv_write(devc, buf, bytes_to_write);
-
- if (bytes_written < 0 || bytes_written != bytes_to_write) {
- sr_err("Acquisition failed to start.");
- return SR_ERR;
- }
-
- sr_dbg("Hardware acquisition started successfully.");
-
- devc->cb_data = cb_data;
-
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
-
- /* Time when we should be done (for detecting trigger timeouts). */
- devc->done = (devc->divcount + 1) * devc->prof->trigger_constant +
- g_get_monotonic_time() + (10 * G_TIME_SPAN_SECOND);
- devc->block_counter = 0;
- devc->trigger_found = 0;
-
- /* Hook up a dummy handler to receive data from the device. */
- sr_source_add(-1, G_IO_IN, 0, receive_data, (void *)sdi);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- struct sr_datafeed_packet packet;
-
- (void)sdi;
-
- sr_dbg("Stopping acquisition.");
- sr_source_remove(-1);
-
- /* Send end packet to the session bus. */
- sr_dbg("Sending SR_DF_END.");
- packet.type = SR_DF_END;
- sr_session_send(cb_data, &packet);
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver chronovu_la8_driver_info = {
- .name = "chronovu-la8",
- .longname = "ChronoVu LA8",
- .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) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "protocol.h"
-
-SR_PRIV const struct cv_profile cv_profiles[] = {
- { CHRONOVU_LA8, "LA8", "ChronoVu LA8", 8, SR_MHZ(100), "01",
- 0.8388608 },
- { CHRONOVU_LA16, "LA16", "ChronoVu LA16", 16, SR_MHZ(200), "01rf",
- 0.042 },
- { 0, NULL, NULL, 0, 0, NULL, 0.0 },
-};
-
-/* LA8: channels are numbered 0-7. LA16: channels are numbered 0-15. */
-SR_PRIV const char *cv_channel_names[] = {
- "0", "1", "2", "3", "4", "5", "6", "7",
- "8", "9", "10", "11", "12", "13", "14", "15",
-};
-
-static int close_usb_reset_sequencer(struct dev_context *devc);
-
-SR_PRIV void cv_fill_samplerates_if_needed(const struct sr_dev_inst *sdi)
-{
- int i;
- struct dev_context *devc;
-
- devc = sdi->priv;
-
- if (devc->samplerates[0] != 0)
- return;
-
- for (i = 0; i < 255; i++)
- devc->samplerates[254 - i] = devc->prof->max_samplerate / (i + 1);
-}
-
-/**
- * Check if the given samplerate is supported by the hardware.
- *
- * @param sdi Device instance.
- * @param samplerate The samplerate (in Hz) to check.
- *
- * @return 1 if the samplerate is supported/valid, 0 otherwise.
- */
-static int is_valid_samplerate(const struct sr_dev_inst *sdi,
- uint64_t samplerate)
-{
- int i;
- struct dev_context *devc;
-
- devc = sdi->priv;
-
- cv_fill_samplerates_if_needed(sdi);
-
- for (i = 0; i < 255; i++) {
- if (devc->samplerates[i] == samplerate)
- return 1;
- }
-
- sr_err("Invalid samplerate (%" PRIu64 "Hz).", samplerate);
-
- return 0;
-}
-
-/**
- * Convert a samplerate (in Hz) to the 'divcount' value the device wants.
- *
- * The divcount value can be 0x00 - 0xfe (0xff is not valid).
- *
- * LA8:
- * sample period = (divcount + 1) * 10ns.
- * divcount = 0x00: 10ns period, 100MHz samplerate.
- * divcount = 0xfe: 2550ns period, 392.15kHz samplerate.
- *
- * LA16:
- * sample period = (divcount + 1) * 5ns.
- * divcount = 0x00: 5ns period, 200MHz samplerate.
- * divcount = 0xfe: 1275ns period, ~784.31kHz samplerate.
- *
- * @param sdi Device instance.
- * @param samplerate The samplerate in Hz.
- *
- * @return The divcount value as needed by the hardware, or 0xff upon errors.
- */
-SR_PRIV uint8_t cv_samplerate_to_divcount(const struct sr_dev_inst *sdi,
- uint64_t samplerate)
-{
- struct dev_context *devc;
-
- devc = sdi->priv;
-
- if (samplerate == 0) {
- sr_err("Can't convert invalid samplerate of 0 Hz.");
- return 0xff;
- }
-
- if (!is_valid_samplerate(sdi, samplerate)) {
- sr_err("Can't get divcount, samplerate invalid.");
- return 0xff;
- }
-
- return (devc->prof->max_samplerate / samplerate) - 1;
-}
-
-/**
- * Write data of a certain length to the FTDI device.
- *
- * @param devc The struct containing private per-device-instance data. Must not
- * be NULL. devc->ftdic must not be NULL either.
- * @param buf The buffer containing the data to write. Must not be NULL.
- * @param size The number of bytes to write. Must be > 0.
- *
- * @return The number of bytes written, or a negative value upon errors.
- */
-SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size)
-{
- int bytes_written;
-
- /* Note: Caller ensures devc/devc->ftdic/buf != NULL and size > 0. */
-
- bytes_written = ftdi_write_data(devc->ftdic, buf, size);
-
- if (bytes_written < 0) {
- sr_err("Failed to write data (%d): %s.",
- bytes_written, ftdi_get_error_string(devc->ftdic));
- (void) close_usb_reset_sequencer(devc); /* Ignore errors. */
- } else if (bytes_written != size) {
- sr_err("Failed to write data, only %d/%d bytes written.",
- size, bytes_written);
- (void) close_usb_reset_sequencer(devc); /* Ignore errors. */
- }
-
- return bytes_written;
-}
-
-/**
- * Read a certain amount of bytes from the FTDI device.
- *
- * @param devc The struct containing private per-device-instance data. Must not
- * be NULL. devc->ftdic must not be NULL either.
- * @param buf The buffer where the received data will be stored. Must not
- * be NULL.
- * @param size The number of bytes to read. Must be >= 1.
- *
- * @return The number of bytes read, or a negative value upon errors.
- */
-static int cv_read(struct dev_context *devc, uint8_t *buf, int size)
-{
- int bytes_read;
-
- /* Note: Caller ensures devc/devc->ftdic/buf != NULL and size > 0. */
-
- bytes_read = ftdi_read_data(devc->ftdic, buf, size);
-
- if (bytes_read < 0) {
- sr_err("Failed to read data (%d): %s.",
- bytes_read, ftdi_get_error_string(devc->ftdic));
- } else if (bytes_read != size) {
- // sr_err("Failed to read data, only %d/%d bytes read.",
- // bytes_read, size);
- }
-
- return bytes_read;
-}
-
-/**
- * Close the USB port and reset the sequencer logic.
- *
- * @param devc The struct containing private per-device-instance data.
- *
- * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
- */
-static int close_usb_reset_sequencer(struct dev_context *devc)
-{
- /* Magic sequence of bytes for resetting the sequencer logic. */
- uint8_t buf[8] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};
- int ret;
-
- /* Note: Caller checked that devc and devc->ftdic != NULL. */
-
- if (devc->ftdic->usb_dev) {
- /* Reset the sequencer logic, then wait 100ms. */
- sr_dbg("Resetting sequencer logic.");
- (void) cv_write(devc, buf, 8); /* Ignore errors. */
- g_usleep(100 * 1000);
-
- /* Purge FTDI buffers, then reset and close the FTDI device. */
- sr_dbg("Purging buffers, resetting+closing FTDI device.");
-
- /* Log errors, but ignore them (i.e., don't abort). */
- if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0)
- sr_err("Failed to purge FTDI buffers (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- if ((ret = ftdi_usb_reset(devc->ftdic)) < 0)
- sr_err("Failed to reset FTDI device (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- if ((ret = ftdi_usb_close(devc->ftdic)) < 0)
- sr_err("Failed to close FTDI device (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- }
-
- /* Close USB device, deinitialize and free the FTDI context. */
- ftdi_free(devc->ftdic);
- devc->ftdic = NULL;
-
- return SR_OK;
-}
-
-/**
- * Reset the ChronoVu device.
- *
- * A reset is required after a failed read/write operation or upon timeouts.
- *
- * @param devc The struct containing private per-device-instance data.
- *
- * @return SR_OK upon success, SR_ERR upon failure.
- */
-static int reset_device(struct dev_context *devc)
-{
- uint8_t buf[BS];
- gint64 done, now;
- int bytes_read;
-
- /* Note: Caller checked that devc and devc->ftdic != NULL. */
-
- sr_dbg("Resetting the device.");
-
- /*
- * Purge pending read data from the FTDI hardware FIFO until
- * no more data is left, or a timeout occurs (after 20s).
- */
- done = (20 * G_TIME_SPAN_SECOND) + g_get_monotonic_time();
- do {
- /* Try to read bytes until none are left (or errors occur). */
- bytes_read = cv_read(devc, (uint8_t *)&buf, BS);
- now = g_get_monotonic_time();
- } while ((done > now) && (bytes_read > 0));
-
- /* Reset the sequencer logic and close the USB port. */
- (void) close_usb_reset_sequencer(devc); /* Ignore errors. */
-
- sr_dbg("Device reset finished.");
-
- return SR_OK;
-}
-
-SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- const struct sr_channel *ch;
- const GSList *l;
- uint16_t channel_bit;
- char *tc;
-
- devc = sdi->priv;
- devc->trigger_pattern = 0x0000; /* Default to "low" trigger. */
- devc->trigger_mask = 0x0000; /* Default to "don't care". */
- devc->trigger_edgemask = 0x0000; /* Default to "state triggered". */
-
- for (l = sdi->channels; l; l = l->next) {
- ch = (struct sr_channel *)l->data;
-
- if (!ch) {
- sr_err("%s: channel was NULL.", __func__);
- return SR_ERR;
- }
-
- /* Skip disabled channels. */
- if (!ch->enabled)
- continue;
-
- /* Skip (enabled) channels with no configured trigger. */
- if (!ch->trigger)
- continue;
-
- /* Note: Must only be run if ch->trigger != NULL. */
- if (ch->index < 0 || ch->index > (int)devc->prof->num_channels - 1) {
- sr_err("Invalid channel index %d, must be "
- "between 0 and %d.", ch->index,
- devc->prof->num_channels - 1);
- return SR_ERR;
- }
-
- channel_bit = (1 << (ch->index));
-
- /* Configure the channel's trigger pattern/mask/edgemask. */
- for (tc = ch->trigger; tc && *tc; tc++) {
- devc->trigger_mask |= channel_bit;
-
- /* Sanity check, LA8 only supports low/high trigger. */
- if ((devc->prof->model == CHRONOVU_LA8) &&
- (*tc != '0' && *tc != '1')) {
- sr_err("Invalid trigger '%c', only "
- "'0'/'1' supported.", *tc);
- return SR_ERR;
- }
-
- /* state: 1 == high, edge: 1 == rising edge. */
- if (*tc == '1' || *tc == 'r')
- devc->trigger_pattern |= channel_bit;
-
- /* LA16 (but not LA8) supports edge triggering. */
- if ((devc->prof->model == CHRONOVU_LA16)) {
- if (*tc == 'r' || *tc == 'f')
- devc->trigger_edgemask |= channel_bit;
- }
-
- }
- }
-
- sr_dbg("Trigger pattern/mask/edgemask = 0x%04x / 0x%04x / 0x%04x.",
- devc->trigger_pattern, devc->trigger_mask,
- devc->trigger_edgemask);
-
- return SR_OK;
-}
-
-SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
-{
- struct dev_context *devc;
-
- /* Note: Caller checked that sdi and sdi->priv != NULL. */
-
- devc = sdi->priv;
-
- sr_spew("Trying to set samplerate to %" PRIu64 "Hz.", samplerate);
-
- cv_fill_samplerates_if_needed(sdi);
-
- /* Check if this is a samplerate supported by the hardware. */
- if (!is_valid_samplerate(sdi, samplerate)) {
- sr_dbg("Failed to set invalid samplerate (%" PRIu64 "Hz).",
- samplerate);
- return SR_ERR;
- }
-
- devc->cur_samplerate = samplerate;
-
- sr_dbg("Samplerate set to %" PRIu64 "Hz.", devc->cur_samplerate);
-
- return SR_OK;
-}
-
-/**
- * Get a block of data from the device.
- *
- * @param devc The struct containing private per-device-instance data. Must not
- * be NULL. devc->ftdic must not be NULL either.
- *
- * @return SR_OK upon success, or SR_ERR upon errors.
- */
-SR_PRIV int cv_read_block(struct dev_context *devc)
-{
- int i, byte_offset, m, mi, p, q, index, bytes_read;
- gint64 now;
-
- /* Note: Caller checked that devc and devc->ftdic != NULL. */
-
- sr_spew("Reading block %d.", devc->block_counter);
-
- bytes_read = cv_read(devc, devc->mangled_buf, BS);
-
- /* If first block read got 0 bytes, retry until success or timeout. */
- if ((bytes_read == 0) && (devc->block_counter == 0)) {
- do {
- sr_spew("Reading block 0 (again).");
- /* Note: If bytes_read < 0 cv_read() will log errors. */
- bytes_read = cv_read(devc, devc->mangled_buf, BS);
- now = g_get_monotonic_time();
- } while ((devc->done > now) && (bytes_read == 0));
- }
-
- /* Check if block read was successful or a timeout occured. */
- if (bytes_read != BS) {
- sr_err("Trigger timed out. Bytes read: %d.", bytes_read);
- (void) reset_device(devc); /* Ignore errors. */
- return SR_ERR;
- }
-
- /* De-mangle the data. */
- sr_spew("Demangling block %d.", devc->block_counter);
- byte_offset = devc->block_counter * BS;
- m = byte_offset / (1024 * 1024);
- mi = m * (1024 * 1024);
- for (i = 0; i < BS; i++) {
- if (devc->prof->model == CHRONOVU_LA8) {
- p = i & (1 << 0);
- index = m * 2 + (((byte_offset + i) - mi) / 2) * 16;
- index += (devc->divcount == 0) ? p : (1 - p);
- } else {
- p = i & (1 << 0);
- q = i & (1 << 1);
- index = m * 4 + (((byte_offset + i) - mi) / 4) * 32;
- index += q + (1 - p);
- }
- devc->final_buf[index] = devc->mangled_buf[i];
- }
-
- return SR_OK;
-}
-
-SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block)
-{
- int i;
- uint8_t sample, expected_sample;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_logic logic;
- int trigger_point; /* Relative trigger point (in this block). */
-
- /* Note: Caller ensures devc/devc->ftdic != NULL and block > 0. */
-
- /* TODO: Implement/test proper trigger support for the LA16. */
-
- /* Check if we can find the trigger condition in this block. */
- trigger_point = -1;
- expected_sample = devc->trigger_pattern & devc->trigger_mask;
- for (i = 0; i < BS; i++) {
- /* Don't continue if the trigger was found previously. */
- if (devc->trigger_found)
- break;
-
- /*
- * Also, don't continue if triggers are "don't care", i.e. if
- * no trigger conditions were specified by the user. In that
- * case we don't want to send an SR_DF_TRIGGER packet at all.
- */
- if (devc->trigger_mask == 0x0000)
- break;
-
- sample = *(devc->final_buf + (block * BS) + i);
-
- if ((sample & devc->trigger_mask) == expected_sample) {
- trigger_point = i;
- devc->trigger_found = 1;
- break;
- }
- }
-
- /* If no trigger was found, send one SR_DF_LOGIC packet. */
- if (trigger_point == -1) {
- /* Send an SR_DF_LOGIC packet to the session bus. */
- sr_spew("Sending SR_DF_LOGIC packet (%d bytes) for "
- "block %d.", BS, block);
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.length = BS;
- logic.unitsize = devc->prof->num_channels / 8;
- logic.data = devc->final_buf + (block * BS);
- sr_session_send(devc->cb_data, &packet);
- return;
- }
-
- /*
- * We found the trigger, so some special handling is needed. We have
- * to send an SR_DF_LOGIC packet with the samples before the trigger
- * (if any), then the SD_DF_TRIGGER packet itself, then another
- * SR_DF_LOGIC packet with the samples after the trigger (if any).
- */
-
- /* TODO: Send SR_DF_TRIGGER packet before or after the actual sample? */
-
- /* If at least one sample is located before the trigger... */
- if (trigger_point > 0) {
- /* Send pre-trigger SR_DF_LOGIC packet to the session bus. */
- sr_spew("Sending pre-trigger SR_DF_LOGIC packet, "
- "start = %d, length = %d.", block * BS, trigger_point);
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.length = trigger_point;
- logic.unitsize = devc->prof->num_channels / 8;
- logic.data = devc->final_buf + (block * BS);
- sr_session_send(devc->cb_data, &packet);
- }
-
- /* Send the SR_DF_TRIGGER packet to the session bus. */
- sr_spew("Sending SR_DF_TRIGGER packet, sample = %d.",
- (block * BS) + trigger_point);
- packet.type = SR_DF_TRIGGER;
- packet.payload = NULL;
- sr_session_send(devc->cb_data, &packet);
-
- /* If at least one sample is located after the trigger... */
- if (trigger_point < (BS - 1)) {
- /* Send post-trigger SR_DF_LOGIC packet to the session bus. */
- sr_spew("Sending post-trigger SR_DF_LOGIC packet, "
- "start = %d, length = %d.",
- (block * BS) + trigger_point, BS - trigger_point);
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.length = BS - trigger_point;
- logic.unitsize = devc->prof->num_channels / 8;
- logic.data = devc->final_buf + (block * BS) + trigger_point;
- sr_session_send(devc->cb_data, &packet);
- }
-}
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef LIBSIGROK_HARDWARE_CHRONOVU_LA8_PROTOCOL_H
-#define LIBSIGROK_HARDWARE_CHRONOVU_LA8_PROTOCOL_H
-
-#include <glib.h>
-#include <ftdi.h>
-#include <stdint.h>
-#include <string.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-
-#define LOG_PREFIX "la8/la16"
-
-#define SDRAM_SIZE (8 * 1024 * 1024)
-#define MAX_NUM_SAMPLES SDRAM_SIZE
-
-#define BS 4096 /* Block size */
-#define NUM_BLOCKS 2048 /* Number of blocks */
-
-enum {
- CHRONOVU_LA8,
- CHRONOVU_LA16,
-};
-
-struct cv_profile {
- int model;
- const char *modelname;
- const char *iproduct; /* USB iProduct string */
- unsigned int num_channels;
- uint64_t max_samplerate;
- const char *trigger_type;
- float trigger_constant;
-};
-
-/* Private, per-device-instance driver context. */
-struct dev_context {
- /** Device profile struct for this device. */
- const struct cv_profile *prof;
-
- /** FTDI device context (used by libftdi). */
- struct ftdi_context *ftdic;
-
- /** The currently configured samplerate of the device. */
- uint64_t cur_samplerate;
-
- /** The current sampling limit (in ms). */
- uint64_t limit_msec;
-
- /** The current sampling limit (in number of samples). */
- uint64_t limit_samples;
-
- void *cb_data;
-
- /**
- * A buffer containing some (mangled) samples from the device.
- * Format: Pretty mangled-up (due to hardware reasons), see code.
- */
- uint8_t mangled_buf[BS];
-
- /**
- * An 8MB buffer where we'll store the de-mangled samples.
- * LA8: Each sample is 1 byte, MSB is channel 7, LSB is channel 0.
- * LA16: Each sample is 2 bytes, MSB is channel 15, LSB is channel 0.
- */
- uint8_t *final_buf;
-
- /**
- * Trigger pattern.
- * A 1 bit matches a high signal, 0 matches a low signal on a channel.
- *
- * If the resp. 'trigger_edgemask' bit is set, 1 means "rising edge",
- * and 0 means "falling edge".
- */
- uint16_t trigger_pattern;
-
- /**
- * Trigger mask.
- * A 1 bit means "must match trigger_pattern", 0 means "don't care".
- */
- uint16_t trigger_mask;
-
- /**
- * Trigger edge mask.
- * A 1 bit means "edge triggered", 0 means "state triggered".
- *
- * Edge triggering is only supported on LA16 (but not LA8).
- */
- uint16_t trigger_edgemask;
-
- /** Tells us whether an SR_DF_TRIGGER packet was already sent. */
- int trigger_found;
-
- /** Used for keeping track how much time has passed. */
- gint64 done;
-
- /** Counter/index for the data block to be read. */
- int block_counter;
-
- /** The divcount value (determines the sample period). */
- uint8_t divcount;
-
- /** This ChronoVu device's USB VID/PID. */
- uint16_t usb_vid;
- uint16_t usb_pid;
-
- /** Samplerates supported by this device. */
- uint64_t samplerates[255];
-};
-
-/* protocol.c */
-extern SR_PRIV const char *cv_channel_names[];
-extern const struct cv_profile cv_profiles[];
-SR_PRIV void cv_fill_samplerates_if_needed(const struct sr_dev_inst *sdi);
-SR_PRIV uint8_t cv_samplerate_to_divcount(const struct sr_dev_inst *sdi,
- uint64_t samplerate);
-SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size);
-SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi);
-SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
-SR_PRIV int cv_read_block(struct dev_context *devc);
-SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block);
-
-#endif
#ifdef HAVE_HW_ASIX_SIGMA
extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
#endif
-#ifdef HAVE_HW_CHRONOVU_LA8
-extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info;
+#ifdef HAVE_HW_CHRONOVU_LA
+extern SR_PRIV struct sr_dev_driver chronovu_la_driver_info;
#endif
#ifdef HAVE_HW_LINK_MSO19
extern SR_PRIV struct sr_dev_driver link_mso19_driver_info;
#ifdef HAVE_HW_ASIX_SIGMA
&asix_sigma_driver_info,
#endif
-#ifdef HAVE_HW_CHRONOVU_LA8
- &chronovu_la8_driver_info,
+#ifdef HAVE_HW_CHRONOVU_LA
+ &chronovu_la_driver_info,
#endif
#ifdef HAVE_HW_LINK_MSO19
&link_mso19_driver_info,
projects / libsigrok.git / commitdiff