src/hardware/openbench-logic-sniffer/protocol.c \
src/hardware/openbench-logic-sniffer/api.c
endif
+if HW_PIPISTRELLO_OLS
+libsigrok_la_SOURCES += \
+ src/hardware/pipistrello-ols/protocol.h \
+ src/hardware/pipistrello-ols/protocol.c \
+ src/hardware/pipistrello-ols/api.c
+endif
if HW_RIGOL_DS
libsigrok_la_SOURCES += \
src/hardware/rigol-ds/protocol.h \
- mic-985xx (including all subdrivers)
- norma-dmm
- openbench-logic-sniffer
+ - pipistrello-ols
- rigol-ds
- serial-dmm (including all subdrivers)
- teleinfo
- ikalogic-scanaplus
- kecheng-kc-330b
- lascar-el-usb
+ - pipistrello-ols
- rigol-ds (USBTMC or TCP)
- saleae-logic16
- sysclk-lwla
DRIVER([Motech LPS 30x], [motech-lps-30x])
DRIVER([Norma DMM], [norma-dmm])
DRIVER([OpenBench Logic Sniffer], [openbench-logic-sniffer])
+DRIVER([Pipistrello-OLS], [pipistrello-ols])
DRIVER([Rigol DS], [rigol-ds])
DRIVER([Saleae Logic16], [saleae-logic16])
DRIVER([serial DMM], [serial-dmm])
if test "x$have_libftdi" = "xno"; then
HW_ASIX_SIGMA="no"; HW_CHRONOVU_LA="no"; HW_IKALOGIC_SCANAPLUS="no";
+ HW_PIPISTRELLO_OLS="no";
fi
# glibmm-2.4 is needed for the C++ bindings.
AC_DEFINE(HAVE_HW_OPENBENCH_LOGIC_SNIFFER, 1, [OpenBench Logic Sniffer (OLS) support])
fi
+AM_CONDITIONAL(HW_PIPISTRELLO_OLS, test x$HW_PIPISTRELLO_OLS = xyes)
+if test "x$HW_PIPISTRELLO_OLS" = "xyes"; then
+ AC_DEFINE(HAVE_HW_PIPISTRELLO_OLS, 1, [Pipistrello OLS support])
+fi
+
AM_CONDITIONAL(HW_RIGOL_DS, test x$HW_RIGOL_DS = xyes)
if test "x$HW_RIGOL_DS" = "xyes"; then
AC_DEFINE(HAVE_HW_RIGOL_DS, 1, [Rigol DS support])
#ifdef HAVE_HW_OPENBENCH_LOGIC_SNIFFER
extern SR_PRIV struct sr_dev_driver ols_driver_info;
#endif
+#ifdef HAVE_HW_PIPISTRELLO_OLS
+extern SR_PRIV struct sr_dev_driver p_ols_driver_info;
+#endif
#ifdef HAVE_HW_RIGOL_DS
extern SR_PRIV struct sr_dev_driver rigol_ds_driver_info;
#endif
#ifdef HAVE_HW_OPENBENCH_LOGIC_SNIFFER
&ols_driver_info,
#endif
+#ifdef HAVE_HW_PIPISTRELLO_OLS
+ &p_ols_driver_info,
+#endif
#ifdef HAVE_HW_RIGOL_DS
&rigol_ds_driver_info,
#endif
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ *
+ * 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"
+
+#define USB_VENDOR_ID 0x0403
+#define USB_DEVICE_ID 0x6010
+#define USB_VENDOR_NAME "Saanlima"
+#define USB_IPRODUCT "Pipistrello LX45"
+
+static const int32_t hwcaps[] = {
+ SR_CONF_LOGIC_ANALYZER,
+ SR_CONF_SAMPLERATE,
+ SR_CONF_TRIGGER_TYPE,
+ SR_CONF_CAPTURE_RATIO,
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_PATTERN_MODE,
+ SR_CONF_EXTERNAL_CLOCK,
+ SR_CONF_SWAP,
+ SR_CONF_RLE,
+};
+
+#define STR_PATTERN_NONE "None"
+#define STR_PATTERN_EXTERNAL "External"
+#define STR_PATTERN_INTERNAL "Internal"
+
+/* Supported methods of test pattern outputs */
+enum {
+ /**
+ * Capture pins 31:16 (unbuffered wing) output a test pattern
+ * that can captured on pins 0:15.
+ */
+ PATTERN_EXTERNAL,
+
+ /** Route test pattern internally to capture buffer. */
+ PATTERN_INTERNAL,
+};
+
+static const char *patterns[] = {
+ STR_PATTERN_NONE,
+ STR_PATTERN_EXTERNAL,
+ STR_PATTERN_INTERNAL,
+};
+
+/* Channels are numbered 0-31 (on the PCB silkscreen). */
+SR_PRIV const char *p_ols_channel_names[NUM_CHANNELS + 1] = {
+ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12",
+ "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23",
+ "24", "25", "26", "27", "28", "29", "30", "31",
+ NULL,
+};
+
+/* Default supported samplerates, can be overridden by device metadata. */
+static const uint64_t samplerates[] = {
+ SR_HZ(10),
+ SR_MHZ(200),
+ SR_HZ(1),
+};
+
+SR_PRIV struct sr_dev_driver p_ols_driver_info;
+static struct sr_dev_driver *di = &p_ols_driver_info;
+
+static int init(struct sr_context *sr_ctx)
+{
+ return std_init(sr_ctx, di, LOG_PREFIX);
+}
+
+static GSList *scan(GSList *options)
+{
+ struct sr_dev_inst *sdi;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ GSList *devices;
+ int ret, i;
+ char buf[70];
+ int bytes_read;
+
+ (void)options;
+
+ drvc = di->priv;
+
+ devices = NULL;
+
+ /* Allocate memory for our private device context. */
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
+ sr_err("Device context malloc failed.");
+ goto err_free_nothing;
+ }
+
+ /* Device-specific settings */
+ devc->max_samples = devc->max_samplerate = devc->protocol_version = 0;
+
+ /* Acquisition settings */
+ devc->limit_samples = devc->capture_ratio = 0;
+ devc->trigger_at = -1;
+ devc->channel_mask = 0xffffffff;
+ devc->flag_reg = 0;
+
+ /* Allocate memory for the incoming ftdi data. */
+ if (!(devc->ftdi_buf = g_try_malloc0(FTDI_BUF_SIZE))) {
+ sr_err("ftdi_buf malloc failed.");
+ goto err_free_devc;
+ }
+
+ /* Allocate memory for the FTDI context (ftdic) and initialize it. */
+ if (!(devc->ftdic = ftdi_new())) {
+ sr_err("Failed to initialize libftdi.");
+ goto err_free_ftdi_buf;;
+ }
+
+ /* Try to open the FTDI device */
+ if (p_ols_open(devc) != SR_OK) {
+ goto err_free_ftdic;
+ }
+
+ /* The discovery procedure is like this: first send the Reset
+ * command (0x00) 5 times, since the device could be anywhere
+ * in a 5-byte command. Then send the ID command (0x02).
+ * If the device responds with 4 bytes ("OLS1" or "SLA1"), we
+ * have a match.
+ */
+
+ ret = SR_OK;
+ for (i = 0; i < 5; i++) {
+ if ((ret = write_shortcommand(devc, CMD_RESET)) != SR_OK) {
+ break;
+ }
+ }
+ if (ret != SR_OK) {
+ sr_err("Could not reset device. Quitting.");
+ goto err_close_ftdic;
+ }
+ write_shortcommand(devc, CMD_ID);
+
+ /* Read the response data. */
+ bytes_read = ftdi_read_data(devc->ftdic, (uint8_t *)buf, 4);
+ if (bytes_read < 0) {
+ sr_err("Failed to read FTDI data (%d): %s.",
+ bytes_read, ftdi_get_error_string(devc->ftdic));
+ goto err_close_ftdic;
+ }
+ if (bytes_read == 0) {
+ goto err_close_ftdic;
+ }
+
+ if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4))
+ goto err_close_ftdic;
+
+ /* Definitely using the OLS protocol, check if it supports
+ * the metadata command.
+ */
+ write_shortcommand(devc, CMD_METADATA);
+
+ /* Read the metadata. */
+ bytes_read = ftdi_read_data(devc->ftdic, (uint8_t *)buf, 64);
+ if (bytes_read < 0) {
+ sr_err("Failed to read FTDI data (%d): %s.",
+ bytes_read, ftdi_get_error_string(devc->ftdic));
+ goto err_close_ftdic;
+ }
+ if (bytes_read == 0) {
+ goto err_close_ftdic;
+ }
+
+ /* Close device. We'll reopen it again when we need it. */
+ p_ols_close(devc);
+
+ /* Parse the metadata. */
+ sdi = p_ols_get_metadata((uint8_t *)buf, bytes_read, devc);
+ sdi->index = 0;
+
+ /* Configure samplerate and divider. */
+ if (p_ols_set_samplerate(sdi, DEFAULT_SAMPLERATE) != SR_OK)
+ sr_dbg("Failed to set default samplerate (%"PRIu64").",
+ DEFAULT_SAMPLERATE);
+ /* Clear trigger masks, values and stages. */
+ p_ols_configure_channels(sdi);
+
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+
+ return devices;
+
+err_close_ftdic:
+ p_ols_close(devc);
+err_free_ftdic:
+ ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
+err_free_ftdi_buf:
+ g_free(devc->ftdi_buf);
+err_free_devc:
+ g_free(devc);
+err_free_nothing:
+
+ return NULL;
+}
+
+static GSList *dev_list(void)
+{
+ return ((struct drv_context *)(di->priv))->instances;
+}
+
+static void clear_helper(void *priv)
+{
+ struct dev_context *devc;
+
+ devc = priv;
+
+ ftdi_free(devc->ftdic);
+ g_free(devc->ftdi_buf);
+}
+
+static int dev_clear(void)
+{
+ return std_dev_clear(di, clear_helper);
+}
+
+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;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ switch (id) {
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(devc->cur_samplerate);
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ *data = g_variant_new_uint64(devc->capture_ratio);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+ case SR_CONF_PATTERN_MODE:
+ if (devc->flag_reg & FLAG_EXTERNAL_TEST_MODE)
+ *data = g_variant_new_string(STR_PATTERN_EXTERNAL);
+ else if (devc->flag_reg & FLAG_INTERNAL_TEST_MODE)
+ *data = g_variant_new_string(STR_PATTERN_INTERNAL);
+ else
+ *data = g_variant_new_string(STR_PATTERN_NONE);
+ break;
+ case SR_CONF_RLE:
+ *data = g_variant_new_boolean(devc->flag_reg & FLAG_RLE ? TRUE : FALSE);
+ break;
+ case SR_CONF_EXTERNAL_CLOCK:
+ *data = g_variant_new_boolean(devc->flag_reg & FLAG_CLOCK_EXTERNAL ? TRUE : FALSE);
+ 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;
+ uint16_t flag;
+ uint64_t tmp_u64;
+ int ret;
+ const char *stropt;
+
+ (void)cg;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ devc = sdi->priv;
+
+ switch (id) {
+ case SR_CONF_SAMPLERATE:
+ tmp_u64 = g_variant_get_uint64(data);
+ if (tmp_u64 < samplerates[0] || tmp_u64 > samplerates[1])
+ return SR_ERR_SAMPLERATE;
+ ret = p_ols_set_samplerate(sdi, g_variant_get_uint64(data));
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ tmp_u64 = g_variant_get_uint64(data);
+ if (tmp_u64 < MIN_NUM_SAMPLES)
+ return SR_ERR;
+ devc->limit_samples = tmp_u64;
+ ret = SR_OK;
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ devc->capture_ratio = g_variant_get_uint64(data);
+ if (devc->capture_ratio < 0 || devc->capture_ratio > 100) {
+ devc->capture_ratio = 0;
+ ret = SR_ERR;
+ } else
+ ret = SR_OK;
+ break;
+ case SR_CONF_EXTERNAL_CLOCK:
+ if (g_variant_get_boolean(data)) {
+ sr_info("Enabling external clock.");
+ devc->flag_reg |= FLAG_CLOCK_EXTERNAL;
+ } else {
+ sr_info("Disabled external clock.");
+ devc->flag_reg &= ~FLAG_CLOCK_EXTERNAL;
+ }
+ ret = SR_OK;
+ break;
+ case SR_CONF_PATTERN_MODE:
+ stropt = g_variant_get_string(data, NULL);
+ ret = SR_OK;
+ flag = 0xffff;
+ if (!strcmp(stropt, STR_PATTERN_NONE)) {
+ sr_info("Disabling test modes.");
+ flag = 0x0000;
+ }else if (!strcmp(stropt, STR_PATTERN_INTERNAL)) {
+ sr_info("Enabling internal test mode.");
+ flag = FLAG_INTERNAL_TEST_MODE;
+ } else if (!strcmp(stropt, STR_PATTERN_EXTERNAL)) {
+ sr_info("Enabling external test mode.");
+ flag = FLAG_EXTERNAL_TEST_MODE;
+ } else {
+ ret = SR_ERR;
+ }
+ if (flag != 0xffff) {
+ devc->flag_reg &= ~(FLAG_INTERNAL_TEST_MODE | FLAG_EXTERNAL_TEST_MODE);
+ devc->flag_reg |= flag;
+ }
+ break;
+ case SR_CONF_SWAP:
+ if (g_variant_get_boolean(data)) {
+ sr_info("Enabling channel swapping.");
+ devc->flag_reg |= FLAG_SWAP_CHANNELS;
+ } else {
+ sr_info("Disabling channel swapping.");
+ devc->flag_reg &= ~FLAG_SWAP_CHANNELS;
+ }
+ ret = SR_OK;
+ break;
+
+ case SR_CONF_RLE:
+ if (g_variant_get_boolean(data)) {
+ sr_info("Enabling RLE.");
+ devc->flag_reg |= FLAG_RLE;
+ } else {
+ sr_info("Disabling RLE.");
+ devc->flag_reg &= ~FLAG_RLE;
+ }
+ ret = SR_OK;
+ break;
+ default:
+ ret = SR_ERR_NA;
+ }
+
+ return ret;
+}
+
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
+{
+ struct dev_context *devc;
+ GVariant *gvar, *grange[2];
+ GVariantBuilder gvb;
+ int num_channels, i;
+
+ (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:
+ 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}", "samplerate-steps", gvar);
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_TRIGGER_TYPE:
+ *data = g_variant_new_string(TRIGGER_TYPE);
+ break;
+ case SR_CONF_PATTERN_MODE:
+ *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns));
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ if (!sdi)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ if (devc->flag_reg & FLAG_RLE)
+ return SR_ERR_NA;
+ if (devc->max_samples == 0)
+ /* Device didn't specify sample memory size in metadata. */
+ return SR_ERR_NA;
+ /*
+ * Channel groups are turned off if no channels in that group are
+ * enabled, making more room for samples for the enabled group.
+ */
+ p_ols_configure_channels(sdi);
+ num_channels = 0;
+ for (i = 0; i < 4; i++) {
+ if (devc->channel_mask & (0xff << (i * 8)))
+ num_channels++;
+ }
+ if (num_channels == 0) {
+ /* This can happen, but shouldn't cause too much drama.
+ * However we can't continue because the code below would
+ * divide by zero. */
+ break;
+ }
+ grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES);
+ grange[1] = g_variant_new_uint64(devc->max_samples / num_channels);
+ *data = g_variant_new_tuple(grange, 2);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ int ret;
+
+ devc = sdi->priv;
+
+ if (p_ols_open(devc) != SR_OK) {
+ return SR_ERR;
+ } else {
+ sdi->status = SR_ST_ACTIVE;
+ return SR_OK;
+ }
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+ int ret;
+ struct dev_context *devc;
+
+ ret = SR_OK;
+ devc = sdi->priv;
+
+ if (sdi->status == SR_ST_ACTIVE) {
+ sr_dbg("Status ACTIVE, closing device.");
+ ret = p_ols_close(devc);
+ } else {
+ sr_spew("Status not ACTIVE, nothing to do.");
+ }
+
+ sdi->status = SR_ST_INACTIVE;
+
+ return ret;
+}
+
+
+static int set_trigger(const struct sr_dev_inst *sdi, int stage)
+{
+ struct dev_context *devc;
+ uint8_t cmd, arg[4];
+
+ devc = sdi->priv;
+
+ cmd = CMD_SET_TRIGGER_MASK + stage * 4;
+ arg[0] = devc->trigger_mask[stage] & 0xff;
+ arg[1] = (devc->trigger_mask[stage] >> 8) & 0xff;
+ arg[2] = (devc->trigger_mask[stage] >> 16) & 0xff;
+ arg[3] = (devc->trigger_mask[stage] >> 24) & 0xff;
+ if (write_longcommand(devc, cmd, arg) != SR_OK)
+ return SR_ERR;
+
+ cmd = CMD_SET_TRIGGER_VALUE + stage * 4;
+ arg[0] = devc->trigger_value[stage] & 0xff;
+ arg[1] = (devc->trigger_value[stage] >> 8) & 0xff;
+ arg[2] = (devc->trigger_value[stage] >> 16) & 0xff;
+ arg[3] = (devc->trigger_value[stage] >> 24) & 0xff;
+ if (write_longcommand(devc, cmd, arg) != SR_OK)
+ return SR_ERR;
+
+ cmd = CMD_SET_TRIGGER_CONFIG + stage * 4;
+ arg[0] = arg[1] = arg[3] = 0x00;
+ arg[2] = stage;
+ if (stage == devc->num_stages)
+ /* Last stage, fire when this one matches. */
+ arg[3] |= TRIGGER_START;
+ if (write_longcommand(devc, cmd, arg) != SR_OK)
+ return SR_ERR;
+
+ return SR_OK;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi,
+ void *cb_data)
+{
+ struct dev_context *devc;
+ uint32_t samplecount, readcount, delaycount;
+ uint8_t changrp_mask, arg[4];
+ int num_channels;
+ int ret, i;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ devc = sdi->priv;
+
+ if (p_ols_configure_channels(sdi) != SR_OK) {
+ sr_err("Failed to configure channels.");
+ return SR_ERR;
+ }
+
+ /*
+ * Enable/disable channel groups in the flag register according to the
+ * channel mask. Calculate this here, because num_channels is needed
+ * to limit readcount.
+ */
+ changrp_mask = 0;
+ num_channels = 0;
+ for (i = 0; i < 4; i++) {
+ if (devc->channel_mask & (0xff << (i * 8))) {
+ changrp_mask |= (1 << i);
+ num_channels++;
+ }
+ }
+
+ /*
+ * Limit readcount to prevent reading past the end of the hardware
+ * buffer.
+ */
+ sr_dbg("max_samples = %d", devc->max_samples);
+ sr_dbg("limit_samples = %d", devc->limit_samples);
+ samplecount = MIN(devc->max_samples / num_channels, devc->limit_samples);
+ readcount = samplecount / 4;
+ sr_dbg("Samplecount = %d", samplecount);
+
+ /* Rather read too many samples than too few. */
+ if (samplecount % 4 != 0)
+ readcount++;
+
+ /* Basic triggers. */
+ if (devc->trigger_mask[0] != 0x00000000) {
+ /* At least one channel has a trigger on it. */
+ delaycount = readcount * (1 - devc->capture_ratio / 100.0);
+ devc->trigger_at = (readcount - delaycount) * 4 - devc->num_stages;
+ for (i = 0; i <= devc->num_stages; i++) {
+ sr_dbg("Setting stage %d trigger.", i);
+ if ((ret = set_trigger(sdi, i)) != SR_OK)
+ return ret;
+ }
+ } else {
+ /* No triggers configured, force trigger on first stage. */
+ sr_dbg("Forcing trigger at stage 0.");
+ if ((ret = set_trigger(sdi, 0)) != SR_OK)
+ return ret;
+ delaycount = readcount;
+ }
+
+ /* Samplerate. */
+ sr_dbg("Setting samplerate to %" PRIu64 "Hz (divider %u)",
+ devc->cur_samplerate, devc->cur_samplerate_divider);
+ arg[0] = devc->cur_samplerate_divider & 0xff;
+ arg[1] = (devc->cur_samplerate_divider & 0xff00) >> 8;
+ arg[2] = (devc->cur_samplerate_divider & 0xff0000) >> 16;
+ arg[3] = 0x00;
+ if (write_longcommand(devc, CMD_SET_DIVIDER, arg) != SR_OK)
+ return SR_ERR;
+ /* Send extended sample limit and pre/post-trigger capture ratio. */
+ arg[0] = ((readcount - 1) & 0xff);
+ arg[1] = ((readcount - 1) & 0xff00) >> 8;
+ arg[2] = ((readcount - 1) & 0xff0000) >> 16;
+ arg[3] = ((readcount - 1) & 0xff000000) >> 24;
+ if (write_longcommand(devc, CMD_CAPTURE_COUNT, arg) != SR_OK)
+ return SR_ERR;
+ arg[0] = ((delaycount - 1) & 0xff);
+ arg[1] = ((delaycount - 1) & 0xff00) >> 8;
+ arg[2] = ((delaycount - 1) & 0xff0000) >> 16;
+ arg[3] = ((delaycount - 1) & 0xff000000) >> 24;
+ if (write_longcommand(devc, CMD_CAPTURE_DELAY, arg) != SR_OK)
+ return SR_ERR;
+ /* Flag register. */
+ sr_dbg("Setting intpat %s, extpat %s, RLE %s, noise_filter %s, demux %s",
+ devc->flag_reg & FLAG_INTERNAL_TEST_MODE ? "on": "off",
+ devc->flag_reg & FLAG_EXTERNAL_TEST_MODE ? "on": "off",
+ devc->flag_reg & FLAG_RLE ? "on" : "off",
+ devc->flag_reg & FLAG_FILTER ? "on": "off",
+ devc->flag_reg & FLAG_DEMUX ? "on" : "off");
+
+ /* 1 means "disable channel". */
+ devc->flag_reg |= ~(changrp_mask << 2) & 0x3c;
+ arg[0] = devc->flag_reg & 0xff;
+ arg[1] = devc->flag_reg >> 8;
+ arg[2] = arg[3] = 0x00;
+ if (write_longcommand(devc, CMD_SET_FLAGS, arg) != SR_OK)
+ return SR_ERR;
+
+ /* Start acquisition on the device. */
+ if (write_shortcommand(devc, CMD_RUN) != SR_OK)
+ return SR_ERR;
+
+ /* Reset all operational states. */
+ devc->rle_count = devc->num_transfers = 0;
+ devc->num_samples = devc->num_bytes = 0;
+ devc->cnt_bytes = devc->cnt_samples = devc->cnt_samples_rle = 0;
+ memset(devc->sample, 0, 4);
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Hook up a dummy handler to receive data from the device. */
+ sr_source_add(-1, G_IO_IN, 0, p_ols_receive_data, (void *)sdi);
+
+ return SR_OK;
+}
+
+
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+{
+ struct dev_context *devc;
+ struct sr_datafeed_packet packet;
+
+ devc = sdi->priv;
+
+ sr_dbg("Stopping acquisition.");
+ write_shortcommand(devc, CMD_RESET);
+ write_shortcommand(devc, CMD_RESET);
+ write_shortcommand(devc, CMD_RESET);
+ write_shortcommand(devc, CMD_RESET);
+ write_shortcommand(devc, CMD_RESET);
+
+ 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 p_ols_driver_info = {
+ .name = "p_ols",
+ .longname = "Pipistrello OLS",
+ .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>
+ *
+ * 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"
+
+extern SR_PRIV struct sr_dev_driver p_ols_driver_info;
+static struct sr_dev_driver *di = &p_ols_driver_info;
+
+SR_PRIV int write_shortcommand(struct dev_context *devc, uint8_t command)
+{
+ uint8_t buf[1];
+ int bytes_written;
+
+ sr_dbg("Sending cmd 0x%.2x.", command);
+ buf[0] = command;
+ bytes_written = ftdi_write_data(devc->ftdic, buf, 1);
+ if (bytes_written < 0) {
+ sr_err("Failed to write FTDI data (%d): %s.",
+ bytes_written, ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ } else if (bytes_written != 1) {
+ sr_err("FTDI write error, only %d/%d bytes written: %s.",
+ bytes_written, 1, ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int write_longcommand(struct dev_context *devc, uint8_t command, uint8_t *data)
+{
+ uint8_t buf[5];
+ int bytes_written;
+
+ sr_dbg("Sending cmd 0x%.2x data 0x%.2x%.2x%.2x%.2x.", command,
+ data[0], data[1], data[2], data[3]);
+ buf[0] = command;
+ buf[1] = data[0];
+ buf[2] = data[1];
+ buf[3] = data[2];
+ buf[4] = data[3];
+ bytes_written = ftdi_write_data(devc->ftdic, buf, 5);
+ if (bytes_written < 0) {
+ sr_err("Failed to write FTDI data (%d): %s.",
+ bytes_written, ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ } else if (bytes_written != 5) {
+ sr_err("FTDI write error, only %d/%d bytes written: %s.",
+ bytes_written, 1, ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int p_ols_open(struct dev_context *devc)
+{
+ int ret;
+
+ /* Note: Caller checks devc and devc->ftdic. */
+
+ /* Select interface B, otherwise communication will fail. */
+ ret = ftdi_set_interface(devc->ftdic, INTERFACE_B);
+ if (ret < 0) {
+ sr_err("Failed to set FTDI interface B (%d): %s", ret,
+ ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ }
+ sr_dbg("FTDI chip interface B set successfully.");
+
+ /* Check for the device and temporarily open it. */
+ ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
+ USB_IPRODUCT, NULL);
+ if (ret < 0) {
+ /* Log errors, except for -3 ("device not found"). */
+ if (ret != -3)
+ sr_err("Failed to open device (%d): %s", ret,
+ ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ }
+ sr_dbg("FTDI 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 RX/TX buffers (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip buffers purged successfully.");
+
+ /* Reset the FTDI bitmode. */
+ ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
+ if (ret < 0) {
+ sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip bitmode reset successfully.");
+
+ /* Set the FTDI latency timer to 16. */
+ ret = ftdi_set_latency_timer(devc->ftdic, 16);
+ if (ret < 0) {
+ sr_err("Failed to set FTDI latency timer (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip latency timer set successfully.");
+
+ /* Set the FTDI read data chunk size to 64kB. */
+ ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
+ if (ret < 0) {
+ sr_err("Failed to set FTDI read data chunk size (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip read data chunk size set successfully.");
+
+ return SR_OK;
+
+err_open_close_ftdic:
+ ftdi_usb_close(devc->ftdic))
+ return SR_ERR;
+}
+
+SR_PRIV int p_ols_close(struct dev_context *devc)
+{
+ int ret;
+
+ /* Note: Caller checks devc and 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));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int p_ols_configure_channels(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ const struct sr_channel *ch;
+ const GSList *l;
+ int channel_bit, stage, i;
+ char *tc;
+
+ devc = sdi->priv;
+
+ devc->channel_mask = 0;
+ for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
+ devc->trigger_mask[i] = 0;
+ devc->trigger_value[i] = 0;
+ }
+
+ devc->num_stages = 0;
+ for (l = sdi->channels; l; l = l->next) {
+ ch = (const struct sr_channel *)l->data;
+ if (!ch->enabled)
+ continue;
+
+ if (ch->index >= devc->max_channels) {
+ sr_err("Channels over the limit of %d\n", devc->max_channels);
+ return SR_ERR;
+ }
+
+ /*
+ * Set up the channel mask for later configuration into the
+ * flag register.
+ */
+ channel_bit = 1 << (ch->index);
+ devc->channel_mask |= channel_bit;
+
+ if (!ch->trigger)
+ continue;
+
+ /* Configure trigger mask and value. */
+ stage = 0;
+ for (tc = ch->trigger; tc && *tc; tc++) {
+ devc->trigger_mask[stage] |= channel_bit;
+ if (*tc == '1')
+ devc->trigger_value[stage] |= channel_bit;
+ stage++;
+ /* Only supporting parallel mode, with up to 4 stages. */
+ if (stage > 3)
+ return SR_ERR;
+ }
+ if (stage > devc->num_stages)
+ devc->num_stages = stage - 1;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, struct dev_context *devc)
+{
+ struct sr_dev_inst *sdi;
+ struct sr_channel *ch;
+ uint32_t tmp_int, ui;
+ uint8_t key, type, token;
+ GString *tmp_str, *devname, *version;
+ guchar tmp_c;
+ int index, i;
+
+ sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, NULL, NULL, NULL);
+ sdi->driver = di;
+ sdi->priv = devc;
+
+ devname = g_string_new("");
+ version = g_string_new("");
+
+ index = 0;
+ while (index < bytes_read) {
+ key = buf[index++];
+ if (key == 0x00) {
+ sr_dbg("Got metadata key 0x00, metadata ends.");
+ break;
+ }
+ type = key >> 5;
+ token = key & 0x1f;
+ switch (type) {
+ case 0:
+ /* NULL-terminated string */
+ tmp_str = g_string_new("");
+ while ((index < bytes_read) && ((tmp_c = buf[index++]) != '\0'))
+ g_string_append_c(tmp_str, tmp_c);
+ sr_dbg("Got metadata key 0x%.2x value '%s'.",
+ key, tmp_str->str);
+ switch (token) {
+ case 0x01:
+ /* Device name */
+ devname = g_string_append(devname, tmp_str->str);
+ break;
+ case 0x02:
+ /* FPGA firmware version */
+ if (version->len)
+ g_string_append(version, ", ");
+ g_string_append(version, "FPGA version ");
+ g_string_append(version, tmp_str->str);
+ break;
+ case 0x03:
+ /* Ancillary version */
+ if (version->len)
+ g_string_append(version, ", ");
+ g_string_append(version, "Ancillary version ");
+ g_string_append(version, tmp_str->str);
+ break;
+ default:
+ sr_info("Unknown token 0x%.2x: '%s'",
+ token, tmp_str->str);
+ break;
+ }
+ g_string_free(tmp_str, TRUE);
+ break;
+ case 1:
+ /* 32-bit unsigned integer */
+ tmp_int = 0;
+ for (i = 0; i < 4; i++) {
+ tmp_int = (tmp_int << 8) | buf[index++];
+ }
+ sr_dbg("Got metadata key 0x%.2x value 0x%.8x.",
+ key, tmp_int);
+ switch (token) {
+ case 0x00:
+ /* Number of usable channels */
+ for (ui = 0; ui < tmp_int; ui++) {
+ if (!(ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
+ p_ols_channel_names[ui])))
+ return 0;
+ sdi->channels = g_slist_append(sdi->channels, ch);
+ }
+ break;
+ case 0x01:
+ /* Amount of sample memory available (bytes) */
+ devc->max_samples = tmp_int;
+ break;
+ case 0x02:
+ /* Amount of dynamic memory available (bytes) */
+ /* what is this for? */
+ break;
+ case 0x03:
+ /* Maximum sample rate (hz) */
+ devc->max_samplerate = tmp_int;
+ break;
+ case 0x04:
+ /* protocol version */
+ devc->protocol_version = tmp_int;
+ break;
+ default:
+ sr_info("Unknown token 0x%.2x: 0x%.8x.",
+ token, tmp_int);
+ break;
+ }
+ break;
+ case 2:
+ /* 8-bit unsigned integer */
+ tmp_c = buf[index++];
+ sr_dbg("Got metadata key 0x%.2x value 0x%.2x.",
+ key, tmp_c);
+ switch (token) {
+ case 0x00:
+ /* Number of usable channels */
+ for (ui = 0; ui < tmp_c; ui++) {
+ if (!(ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
+ p_ols_channel_names[ui])))
+ return 0;
+ sdi->channels = g_slist_append(sdi->channels, ch);
+ }
+ break;
+ case 0x01:
+ /* protocol version */
+ devc->protocol_version = tmp_c;
+ break;
+ default:
+ sr_info("Unknown token 0x%.2x: 0x%.2x.",
+ token, tmp_c);
+ break;
+ }
+ break;
+ default:
+ /* unknown type */
+ break;
+ }
+ }
+
+ sdi->model = devname->str;
+ sdi->version = version->str;
+ g_string_free(devname, FALSE);
+ g_string_free(version, FALSE);
+
+ return sdi;
+}
+
+SR_PRIV int p_ols_set_samplerate(const struct sr_dev_inst *sdi,
+ const uint64_t samplerate)
+{
+ struct dev_context *devc;
+
+ devc = sdi->priv;
+ if (devc->max_samplerate && samplerate > devc->max_samplerate)
+ return SR_ERR_SAMPLERATE;
+
+ if (samplerate > CLOCK_RATE) {
+ sr_info("Enabling demux mode.");
+ devc->flag_reg |= FLAG_DEMUX;
+ devc->flag_reg &= ~FLAG_FILTER;
+ devc->max_channels = NUM_CHANNELS / 2;
+ devc->cur_samplerate_divider = (CLOCK_RATE * 2 / samplerate) - 1;
+ } else {
+ sr_info("Disabling demux mode.");
+ devc->flag_reg &= ~FLAG_DEMUX;
+ devc->flag_reg |= FLAG_FILTER;
+ devc->max_channels = NUM_CHANNELS;
+ devc->cur_samplerate_divider = (CLOCK_RATE / samplerate) - 1;
+ }
+
+ /* Calculate actual samplerate used and complain if it is different
+ * from the requested.
+ */
+ devc->cur_samplerate = CLOCK_RATE / (devc->cur_samplerate_divider + 1);
+ if (devc->flag_reg & FLAG_DEMUX)
+ devc->cur_samplerate *= 2;
+ if (devc->cur_samplerate != samplerate)
+ sr_info("Can't match samplerate %" PRIu64 ", using %"
+ PRIu64 ".", samplerate, devc->cur_samplerate);
+
+ return SR_OK;
+}
+
+
+SR_PRIV int p_ols_receive_data(int fd, int revents, void *cb_data)
+{
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_logic logic;
+ uint32_t sample;
+ int num_channels, offset, j;
+ int bytes_read, index;
+ unsigned int i;
+ unsigned char byte;
+
+ (void)fd;
+ (void)revents;
+
+ sdi = cb_data;
+ devc = sdi->priv;
+
+ if (devc->num_transfers++ == 0) {
+ devc->raw_sample_buf = g_try_malloc(devc->limit_samples * 4);
+ if (!devc->raw_sample_buf) {
+ sr_err("Sample buffer malloc failed.");
+ return FALSE;
+ }
+ /* fill with 1010... for debugging */
+ memset(devc->raw_sample_buf, 0x82, devc->limit_samples * 4);
+ }
+
+ if (devc->num_samples < devc->limit_samples) {
+
+ num_channels = 0;
+ for (i = NUM_CHANNELS; i > 0x02; i /= 2) {
+ if ((devc->flag_reg & i) == 0) {
+ num_channels++;
+ }
+ }
+
+ /* Get a block of data. */
+ bytes_read = ftdi_read_data(devc->ftdic, devc->ftdi_buf, FTDI_BUF_SIZE);
+ if (bytes_read < 0) {
+ sr_err("Failed to read FTDI data (%d): %s.",
+ bytes_read, ftdi_get_error_string(devc->ftdic));
+ sdi->driver->dev_acquisition_stop(sdi, sdi);
+ return FALSE;
+ }
+ if (bytes_read == 0) {
+ sr_spew("Received 0 bytes, nothing to do.");
+ return TRUE;
+ }
+
+ sr_dbg("Received %d bytes", bytes_read);
+
+ index = 0;
+ while (index < bytes_read) {
+ byte = devc->ftdi_buf[index++];
+ devc->cnt_bytes++;
+
+ devc->sample[devc->num_bytes++] = byte;
+ sr_spew("Received byte 0x%.2x.", byte);
+ if (devc->num_bytes == num_channels) {
+ devc->cnt_samples++;
+ devc->cnt_samples_rle++;
+ /*
+ * Got a full sample. Convert from the OLS's little-endian
+ * sample to the local format.
+ */
+ sample = devc->sample[0] | (devc->sample[1] << 8) \
+ | (devc->sample[2] << 16) | (devc->sample[3] << 24);
+ sr_spew("Received sample 0x%.*x.", devc->num_bytes * 2, sample);
+ if (devc->flag_reg & FLAG_RLE) {
+ /*
+ * In RLE mode the high bit of the sample is the
+ * "count" flag, meaning this sample is the number
+ * of times the previous sample occurred.
+ */
+ if (devc->sample[devc->num_bytes - 1] & 0x80) {
+ /* Clear the high bit. */
+ sample &= ~(0x80 << (devc->num_bytes - 1) * 8);
+ devc->rle_count = sample;
+ devc->cnt_samples_rle += devc->rle_count;
+ sr_dbg("RLE count: %u.", devc->rle_count);
+ devc->num_bytes = 0;
+ continue;
+ }
+ }
+ devc->num_samples += devc->rle_count + 1;
+ if (devc->num_samples > devc->limit_samples) {
+ /* Save us from overrunning the buffer. */
+ devc->rle_count -= devc->num_samples - devc->limit_samples;
+ devc->num_samples = devc->limit_samples;
+ }
+
+ if (num_channels < 4) {
+ /*
+ * Some channel groups may have been turned
+ * off, to speed up transfer between the
+ * hardware and the PC. Expand that here before
+ * submitting it over the session bus --
+ * whatever is listening on the bus will be
+ * expecting a full 32-bit sample, based on
+ * the number of channels.
+ */
+ j = 0;
+ memset(devc->tmp_sample, 0, 4);
+ for (i = 0; i < 4; i++) {
+ if (((devc->flag_reg >> 2) & (1 << i)) == 0) {
+ /*
+ * This channel group was
+ * enabled, copy from received
+ * sample.
+ */
+ devc->tmp_sample[i] = devc->sample[j++];
+ } else if (devc->flag_reg & FLAG_DEMUX && (i > 2)) {
+ /* group 2 & 3 get added to 0 & 1 */
+ devc->tmp_sample[i - 2] = devc->sample[j++];
+ }
+ }
+ memcpy(devc->sample, devc->tmp_sample, 4);
+ sr_spew("Expanded sample: 0x%.8x.", sample);
+ }
+
+ /*
+ * Pipistrello OLS sends its sample buffer backwards.
+ * store it in reverse order here, so we can dump
+ * this on the session bus later.
+ */
+ offset = (devc->limit_samples - devc->num_samples) * 4;
+ for (i = 0; i <= devc->rle_count; i++) {
+ memcpy(devc->raw_sample_buf + offset + (i * 4),
+ devc->sample, 4);
+ }
+ memset(devc->sample, 0, 4);
+ devc->num_bytes = 0;
+ devc->rle_count = 0;
+ }
+ }
+ return TRUE;
+ } else {
+ /*
+ * We've acquired all the samples we asked for -- we're done.
+ * Send the (properly-ordered) buffer to the frontend.
+ */
+ sr_dbg("Received %d bytes, %d samples, %d decompressed samples.",
+ devc->cnt_bytes, devc->cnt_samples,
+ devc->cnt_samples_rle);
+ if (devc->trigger_at != -1) {
+ /*
+ * A trigger was set up, so we need to tell the frontend
+ * about it.
+ */
+ if (devc->trigger_at > 0) {
+ /* There are pre-trigger samples, send those first. */
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = devc->trigger_at * 4;
+ logic.unitsize = 4;
+ logic.data = devc->raw_sample_buf +
+ (devc->limit_samples - devc->num_samples) * 4;
+ sr_session_send(cb_data, &packet);
+ }
+
+ /* Send the trigger. */
+ packet.type = SR_DF_TRIGGER;
+ sr_session_send(cb_data, &packet);
+
+ /* Send post-trigger samples. */
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = (devc->num_samples * 4) - (devc->trigger_at * 4);
+ logic.unitsize = 4;
+ logic.data = devc->raw_sample_buf + devc->trigger_at * 4 +
+ (devc->limit_samples - devc->num_samples) * 4;
+ sr_session_send(cb_data, &packet);
+ } else {
+ /* no trigger was used */
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = devc->num_samples * 4;
+ logic.unitsize = 4;
+ logic.data = devc->raw_sample_buf +
+ (devc->limit_samples - devc->num_samples) * 4;
+ sr_session_send(cb_data, &packet);
+ }
+ g_free(devc->raw_sample_buf);
+
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ }
+
+ return TRUE;
+}
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ *
+ * 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_PIPISTRELLO_OLS_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_PIPISTRELLO_OLS_PROTOCOL_H
+
+#include <stdint.h>
+#include <string.h>
+#include <glib.h>
+#include <ftdi.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "pipistrello_ols"
+
+#define FTDI_BUF_SIZE (16 * 1024)
+
+
+#define NUM_CHANNELS 32
+#define NUM_TRIGGER_STAGES 4
+#define TRIGGER_TYPE "01"
+#define CLOCK_RATE SR_MHZ(100)
+#define MIN_NUM_SAMPLES 4
+#define DEFAULT_SAMPLERATE SR_MHZ(100)
+
+/* Command opcodes */
+#define CMD_RESET 0x00
+#define CMD_RUN 0x01
+#define CMD_TESTMODE 0x03
+#define CMD_ID 0x02
+#define CMD_METADATA 0x04
+#define CMD_SET_DIVIDER 0x80
+#define CMD_SET_FLAGS 0x82
+#define CMD_CAPTURE_COUNT 0x83
+#define CMD_CAPTURE_DELAY 0x84
+#define CMD_SET_TRIGGER_MASK 0xc0
+#define CMD_SET_TRIGGER_VALUE 0xc1
+#define CMD_SET_TRIGGER_CONFIG 0xc2
+
+/* Trigger config */
+#define TRIGGER_START (1 << 3)
+
+/* Bitmasks for CMD_FLAGS */
+/* 12-13 unused, 14-15 RLE mode (we hardcode mode 0). */
+#define FLAG_INTERNAL_TEST_MODE (1 << 11)
+#define FLAG_EXTERNAL_TEST_MODE (1 << 10)
+#define FLAG_SWAP_CHANNELS (1 << 9)
+#define FLAG_RLE (1 << 8)
+#define FLAG_SLOPE_FALLING (1 << 7)
+#define FLAG_CLOCK_EXTERNAL (1 << 6)
+#define FLAG_CHANNELGROUP_4 (1 << 5)
+#define FLAG_CHANNELGROUP_3 (1 << 4)
+#define FLAG_CHANNELGROUP_2 (1 << 3)
+#define FLAG_CHANNELGROUP_1 (1 << 2)
+#define FLAG_FILTER (1 << 1)
+#define FLAG_DEMUX (1 << 0)
+
+/* Private, per-device-instance driver context. */
+struct dev_context {
+ /** FTDI device context (used by libftdi). */
+ struct ftdi_context *ftdic;
+ uint8_t *ftdi_buf;
+
+ /* Fixed device settings */
+ int max_channels;
+ uint32_t max_samples;
+ uint32_t max_samplerate;
+ uint32_t protocol_version;
+
+ /* Acquisition settings */
+ uint64_t cur_samplerate;
+ uint32_t cur_samplerate_divider;
+ uint64_t limit_samples;
+ int capture_ratio;
+ int trigger_at;
+ uint32_t channel_mask;
+ uint32_t trigger_mask[4];
+ uint32_t trigger_value[4];
+ int num_stages;
+ uint16_t flag_reg;
+
+ /* Operational states */
+ unsigned int num_transfers;
+ unsigned int num_samples;
+ int num_bytes;
+ int cnt_bytes;
+ int cnt_samples;
+ int cnt_samples_rle;
+
+ /* Temporary variables */
+ unsigned int rle_count;
+ unsigned char sample[4];
+ unsigned char tmp_sample[4];
+ unsigned char *raw_sample_buf;
+};
+
+
+SR_PRIV extern const char *p_ols_channel_names[NUM_CHANNELS + 1];
+SR_PRIV int write_shortcommand(struct dev_context *devc, uint8_t command);
+SR_PRIV int write_longcommand(struct dev_context *devc, uint8_t command, uint8_t *data);
+SR_PRIV int p_ols_open(struct dev_context *devc);
+SR_PRIV int p_ols_close(struct dev_context *devc);
+SR_PRIV int p_ols_configure_channels(const struct sr_dev_inst *sdi);
+SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, struct dev_context *devc);
+SR_PRIV int p_ols_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
+SR_PRIV int p_ols_receive_data(int fd, int revents, void *cb_data);
+
+#endif
projects / libsigrok.git / commitdiff