* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-/*
- * ASIX SIGMA/SIGMA2 logic analyzer driver
- */
-
#include <config.h>
#include "protocol.h"
"9", "10", "11", "12", "13", "14", "15", "16",
};
+static const uint32_t scanopts[] = {
+ SR_CONF_CONN,
+};
+
static const uint32_t drvopts[] = {
SR_CONF_LOGIC_ANALYZER,
};
static const uint32_t devopts[] = {
SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_CONN | SR_CONF_GET,
SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+#if ASIX_SIGMA_WITH_TRIGGER
SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
+#endif
};
+#if ASIX_SIGMA_WITH_TRIGGER
static const int32_t trigger_matches[] = {
SR_TRIGGER_ZERO,
SR_TRIGGER_ONE,
SR_TRIGGER_RISING,
SR_TRIGGER_FALLING,
};
+#endif
+static void clear_helper(struct dev_context *devc)
+{
+ ftdi_deinit(&devc->ftdic);
+}
static int dev_clear(const struct sr_dev_driver *di)
{
- return std_dev_clear(di, sigma_clear_helper);
+ return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
}
-static GSList *scan(struct sr_dev_driver *di, GSList *options)
+static gboolean bus_addr_in_devices(int bus, int addr, GSList *devs)
{
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
- struct ftdi_device_list *devlist;
- char serial_txt[10];
- uint32_t serial;
- int ret;
- unsigned int i;
-
- (void)options;
+ struct sr_usb_dev_inst *usb;
- devc = g_malloc0(sizeof(struct dev_context));
+ for (/* EMPTY */; devs; devs = devs->next) {
+ usb = devs->data;
+ if (usb->bus == bus && usb->address == addr)
+ return TRUE;
+ }
- ftdi_init(&devc->ftdic);
+ return FALSE;
+}
- /* Look for SIGMAs. */
+static gboolean known_vid_pid(const struct libusb_device_descriptor *des)
+{
+ if (des->idVendor != USB_VENDOR_ASIX)
+ return FALSE;
+ if (des->idProduct != USB_PRODUCT_SIGMA && des->idProduct != USB_PRODUCT_OMEGA)
+ return FALSE;
+ return TRUE;
+}
- if ((ret = ftdi_usb_find_all(&devc->ftdic, &devlist,
- USB_VENDOR, USB_PRODUCT)) <= 0) {
- if (ret < 0)
- sr_err("ftdi_usb_find_all(): %d", ret);
- goto free;
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
+{
+ struct drv_context *drvc;
+ libusb_context *usbctx;
+ const char *conn;
+ GSList *l, *conn_devices;
+ struct sr_config *src;
+ GSList *devices;
+ libusb_device **devlist, *devitem;
+ int bus, addr;
+ struct libusb_device_descriptor des;
+ struct libusb_device_handle *hdl;
+ int ret;
+ char conn_id[20];
+ char serno_txt[16];
+ char *end;
+ long serno_num, serno_pre;
+ enum asix_device_type dev_type;
+ const char *dev_text;
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+ size_t devidx, chidx;
+
+ drvc = di->context;
+ usbctx = drvc->sr_ctx->libusb_ctx;
+
+ /* Find all devices which match an (optional) conn= spec. */
+ conn = NULL;
+ for (l = options; l; l = l->next) {
+ src = l->data;
+ switch (src->key) {
+ case SR_CONF_CONN:
+ conn = g_variant_get_string(src->data, NULL);
+ break;
+ }
}
+ conn_devices = NULL;
+ if (conn)
+ conn_devices = sr_usb_find(usbctx, conn);
+ if (conn && !conn_devices)
+ return NULL;
+
+ /* Find all ASIX logic analyzers (which match the connection spec). */
+ devices = NULL;
+ libusb_get_device_list(usbctx, &devlist);
+ for (devidx = 0; devlist[devidx]; devidx++) {
+ devitem = devlist[devidx];
+
+ /* Check for connection match if a user spec was given. */
+ bus = libusb_get_bus_number(devitem);
+ addr = libusb_get_device_address(devitem);
+ if (conn && !bus_addr_in_devices(bus, addr, conn_devices))
+ continue;
+ snprintf(conn_id, sizeof(conn_id), "%d.%d", bus, addr);
- /* Make sure it's a version 1 or 2 SIGMA. */
- ftdi_usb_get_strings(&devc->ftdic, devlist->dev, NULL, 0, NULL, 0,
- serial_txt, sizeof(serial_txt));
- sscanf(serial_txt, "%x", &serial);
+ /*
+ * Check for known VID:PID pairs. Get the serial number,
+ * to then derive the device type from it.
+ */
+ libusb_get_device_descriptor(devitem, &des);
+ if (!known_vid_pid(&des))
+ continue;
+ if (!des.iSerialNumber) {
+ sr_warn("Cannot get serial number (index 0).");
+ continue;
+ }
+ ret = libusb_open(devitem, &hdl);
+ if (ret < 0) {
+ sr_warn("Cannot open USB device %04x.%04x: %s.",
+ des.idVendor, des.idProduct,
+ libusb_error_name(ret));
+ continue;
+ }
+ ret = libusb_get_string_descriptor_ascii(hdl,
+ des.iSerialNumber,
+ (unsigned char *)serno_txt, sizeof(serno_txt));
+ if (ret < 0) {
+ sr_warn("Cannot get serial number (%s).",
+ libusb_error_name(ret));
+ libusb_close(hdl);
+ continue;
+ }
+ libusb_close(hdl);
- if (serial < 0xa6010000 || serial > 0xa602ffff) {
- sr_err("Only SIGMA and SIGMA2 are supported "
- "in this version of libsigrok.");
- goto free;
+ /*
+ * All ASIX logic analyzers have a serial number, which
+ * reads as a hex number, and tells the device type.
+ */
+ ret = sr_atol_base(serno_txt, &serno_num, &end, 16);
+ if (ret != SR_OK || !end || *end) {
+ sr_warn("Cannot interpret serial number %s.", serno_txt);
+ continue;
+ }
+ dev_type = ASIX_TYPE_NONE;
+ dev_text = NULL;
+ serno_pre = serno_num >> 16;
+ switch (serno_pre) {
+ case 0xa601:
+ dev_type = ASIX_TYPE_SIGMA;
+ dev_text = "SIGMA";
+ sr_info("Found SIGMA, serno %s.", serno_txt);
+ break;
+ case 0xa602:
+ dev_type = ASIX_TYPE_SIGMA;
+ dev_text = "SIGMA2";
+ sr_info("Found SIGMA2, serno %s.", serno_txt);
+ break;
+ case 0xa603:
+ dev_type = ASIX_TYPE_OMEGA;
+ dev_text = "OMEGA";
+ sr_info("Found OMEGA, serno %s.", serno_txt);
+ if (!ASIX_WITH_OMEGA) {
+ sr_warn("OMEGA support is not implemented yet.");
+ continue;
+ }
+ break;
+ default:
+ sr_warn("Unknown serno %s, skipping.", serno_txt);
+ continue;
+ }
+
+ /* Create a device instance, add it to the result set. */
+
+ sdi = g_malloc0(sizeof(*sdi));
+ devices = g_slist_append(devices, sdi);
+ sdi->status = SR_ST_INITIALIZING;
+ sdi->vendor = g_strdup("ASIX");
+ sdi->model = g_strdup(dev_text);
+ sdi->serial_num = g_strdup(serno_txt);
+ sdi->connection_id = g_strdup(conn_id);
+ for (chidx = 0; chidx < ARRAY_SIZE(channel_names); chidx++)
+ sr_channel_new(sdi, chidx, SR_CHANNEL_LOGIC,
+ TRUE, channel_names[chidx]);
+
+ devc = g_malloc0(sizeof(*devc));
+ sdi->priv = devc;
+ devc->id.vid = des.idVendor;
+ devc->id.pid = des.idProduct;
+ devc->id.serno = serno_num;
+ devc->id.prefix = serno_pre;
+ devc->id.type = dev_type;
+ devc->samplerate = samplerates[0];
+ sr_sw_limits_init(&devc->cfg_limits);
+ devc->cur_firmware = -1;
+ devc->capture_ratio = 50;
+ devc->use_triggers = 0;
}
+ libusb_free_device_list(devlist, 1);
+ g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
- sr_info("Found ASIX SIGMA - Serial: %s", serial_txt);
-
- devc->cur_samplerate = samplerates[0];
- devc->period_ps = 0;
- devc->limit_msec = 0;
- devc->cur_firmware = -1;
- devc->num_channels = 0;
- devc->samples_per_event = 0;
- devc->capture_ratio = 50;
- devc->use_triggers = 0;
-
- /* Register SIGMA device. */
- sdi = g_malloc0(sizeof(struct sr_dev_inst));
- sdi->status = SR_ST_INITIALIZING;
- sdi->vendor = g_strdup(USB_VENDOR_NAME);
- sdi->model = g_strdup(USB_MODEL_NAME);
-
- for (i = 0; i < ARRAY_SIZE(channel_names); i++)
- sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
-
- sdi->priv = devc;
-
- /* We will open the device again when we need it. */
- ftdi_list_free(&devlist);
-
- return std_scan_complete(di, g_slist_append(NULL, sdi));
-
-free:
- ftdi_deinit(&devc->ftdic);
- g_free(devc);
- return NULL;
+ return std_scan_complete(di, devices);
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
+ long vid, pid;
+ const char *serno;
int ret;
devc = sdi->priv;
- /* Make sure it's an ASIX SIGMA. */
- if ((ret = ftdi_usb_open_desc(&devc->ftdic,
- USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
-
- sr_err("ftdi_usb_open failed: %s",
- ftdi_get_error_string(&devc->ftdic));
-
- return 0;
+ if (devc->id.type == ASIX_TYPE_OMEGA && !ASIX_WITH_OMEGA) {
+ sr_err("OMEGA support is not implemented yet.");
+ return SR_ERR_NA;
+ }
+ vid = devc->id.vid;
+ pid = devc->id.pid;
+ serno = sdi->serial_num;
+
+ ret = ftdi_init(&devc->ftdic);
+ if (ret < 0) {
+ sr_err("Cannot initialize FTDI context (%d): %s.",
+ ret, ftdi_get_error_string(&devc->ftdic));
+ return SR_ERR_IO;
+ }
+ ret = ftdi_usb_open_desc_index(&devc->ftdic, vid, pid, NULL, serno, 0);
+ if (ret < 0) {
+ sr_err("Cannot open device (%d): %s.",
+ ret, ftdi_get_error_string(&devc->ftdic));
+ return SR_ERR_IO;
}
-
- sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
+ int ret;
devc = sdi->priv;
- /* TODO */
- if (sdi->status == SR_ST_ACTIVE)
- ftdi_usb_close(&devc->ftdic);
-
- sdi->status = SR_ST_INACTIVE;
+ ret = ftdi_usb_close(&devc->ftdic);
+ ftdi_deinit(&devc->ftdic);
- return SR_OK;
+ return (ret == 0) ? SR_OK : SR_ERR;
}
-static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+static int config_get(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
struct dev_context *devc;
devc = sdi->priv;
switch (key) {
+ case SR_CONF_CONN:
+ *data = g_variant_new_string(sdi->connection_id);
+ break;
case SR_CONF_SAMPLERATE:
- *data = g_variant_new_uint64(devc->cur_samplerate);
+ *data = g_variant_new_uint64(devc->samplerate);
break;
case SR_CONF_LIMIT_MSEC:
- *data = g_variant_new_uint64(devc->limit_msec);
- break;
+ case SR_CONF_LIMIT_SAMPLES:
+ return sr_sw_limits_config_get(&devc->cfg_limits, key, data);
+#if ASIX_SIGMA_WITH_TRIGGER
case SR_CONF_CAPTURE_RATIO:
*data = g_variant_new_uint64(devc->capture_ratio);
break;
+#endif
default:
return SR_ERR_NA;
}
return SR_OK;
}
-static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+static int config_set(uint32_t key, GVariant *data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
struct dev_context *devc;
- uint64_t tmp;
int ret;
+ uint64_t want_rate, have_rate;
(void)cg;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
devc = sdi->priv;
- ret = SR_OK;
switch (key) {
case SR_CONF_SAMPLERATE:
- ret = sigma_set_samplerate(sdi, g_variant_get_uint64(data));
+ want_rate = g_variant_get_uint64(data);
+ ret = sigma_normalize_samplerate(want_rate, &have_rate);
+ if (ret != SR_OK)
+ return ret;
+ if (have_rate != want_rate) {
+ char *text_want, *text_have;
+ text_want = sr_samplerate_string(want_rate);
+ text_have = sr_samplerate_string(have_rate);
+ sr_info("Adjusted samplerate %s to %s.",
+ text_want, text_have);
+ g_free(text_want);
+ g_free(text_have);
+ }
+ devc->samplerate = have_rate;
break;
case SR_CONF_LIMIT_MSEC:
- tmp = g_variant_get_uint64(data);
- if (tmp > 0)
- devc->limit_msec = g_variant_get_uint64(data);
- else
- ret = SR_ERR;
- break;
case SR_CONF_LIMIT_SAMPLES:
- tmp = g_variant_get_uint64(data);
- devc->limit_msec = tmp * 1000 / devc->cur_samplerate;
- break;
+ return sr_sw_limits_config_set(&devc->cfg_limits, key, data);
+#if ASIX_SIGMA_WITH_TRIGGER
case SR_CONF_CAPTURE_RATIO:
- tmp = g_variant_get_uint64(data);
- if (tmp <= 100)
- devc->capture_ratio = tmp;
- else
- ret = SR_ERR;
+ devc->capture_ratio = g_variant_get_uint64(data);
break;
+#endif
default:
- ret = SR_ERR_NA;
+ return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+static int config_list(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
- GVariant *gvar;
- GVariantBuilder gvb;
-
- (void)cg;
-
switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
case SR_CONF_DEVICE_OPTIONS:
- if (!sdi)
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
- else
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
- break;
+ if (cg)
+ return SR_ERR_NA;
+ return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
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,
- SAMPLERATES_COUNT, sizeof(uint64_t));
- g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
- *data = g_variant_builder_end(&gvb);
+ *data = std_gvar_samplerates(samplerates, samplerates_count);
break;
+#if ASIX_SIGMA_WITH_TRIGGER
case SR_CONF_TRIGGER_MATCH:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- trigger_matches, ARRAY_SIZE(trigger_matches),
- sizeof(int32_t));
+ *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
break;
+#endif
default:
return SR_ERR_NA;
}
{
struct dev_context *devc;
struct clockselect_50 clockselect;
- int frac, triggerpin, ret;
- uint8_t triggerselect = 0;
+ int triggerpin, ret;
+ uint8_t triggerselect;
struct triggerinout triggerinout_conf;
struct triggerlut lut;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ uint8_t regval;
+ uint8_t clock_bytes[sizeof(clockselect)];
+ size_t clock_idx;
devc = sdi->priv;
+ /*
+ * Setup the device's samplerate from the value which up to now
+ * just got checked and stored. As a byproduct this can pick and
+ * send firmware to the device, reduce the number of available
+ * logic channels, etc.
+ *
+ * Determine an acquisition timeout from optionally configured
+ * sample count or time limits. Which depends on the samplerate.
+ */
+ ret = sigma_set_samplerate(sdi);
+ if (ret != SR_OK)
+ return ret;
+ ret = sigma_set_acquire_timeout(devc);
+ if (ret != SR_OK)
+ return ret;
+
if (sigma_convert_trigger(sdi) != SR_OK) {
sr_err("Failed to configure triggers.");
return SR_ERR;
}
- /* If the samplerate has not been set, default to 200 kHz. */
- if (devc->cur_firmware == -1) {
- if ((ret = sigma_set_samplerate(sdi, SR_KHZ(200))) != SR_OK)
- return ret;
- }
-
/* Enter trigger programming mode. */
- sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, devc);
+ sigma_set_register(WRITE_TRIGGER_SELECT2, 0x20, devc);
- /* 100 and 200 MHz mode. */
- if (devc->cur_samplerate >= SR_MHZ(100)) {
- sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, devc);
+ triggerselect = 0;
+ if (devc->samplerate >= SR_MHZ(100)) {
+ /* 100 and 200 MHz mode. */
+ sigma_set_register(WRITE_TRIGGER_SELECT2, 0x81, devc);
/* Find which pin to trigger on from mask. */
for (triggerpin = 0; triggerpin < 8; triggerpin++)
if (devc->trigger.fallingmask)
triggerselect |= 1 << 3;
- /* All other modes. */
- } else if (devc->cur_samplerate <= SR_MHZ(50)) {
+ } else if (devc->samplerate <= SR_MHZ(50)) {
+ /* All other modes. */
sigma_build_basic_trigger(&lut, devc);
sigma_write_trigger_lut(&lut, devc);
sizeof(struct triggerinout), devc);
/* Go back to normal mode. */
- sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, devc);
+ sigma_set_register(WRITE_TRIGGER_SELECT2, triggerselect, devc);
/* Set clock select register. */
- if (devc->cur_samplerate == SR_MHZ(200))
+ clockselect.async = 0;
+ clockselect.fraction = 1 - 1; /* Divider 1. */
+ clockselect.disabled_channels = 0x0000; /* All channels enabled. */
+ if (devc->samplerate == SR_MHZ(200)) {
/* Enable 4 channels. */
- sigma_set_register(WRITE_CLOCK_SELECT, 0xf0, devc);
- else if (devc->cur_samplerate == SR_MHZ(100))
+ clockselect.disabled_channels = 0xf0ff;
+ } else if (devc->samplerate == SR_MHZ(100)) {
/* Enable 8 channels. */
- sigma_set_register(WRITE_CLOCK_SELECT, 0x00, devc);
- else {
+ clockselect.disabled_channels = 0x00ff;
+ } else {
/*
- * 50 MHz mode (or fraction thereof). Any fraction down to
- * 50 MHz / 256 can be used, but is not supported by sigrok API.
+ * 50 MHz mode, or fraction thereof. The 50MHz reference
+ * can get divided by any integer in the range 1 to 256.
+ * Divider minus 1 gets written to the hardware.
+ * (The driver lists a discrete set of sample rates, but
+ * all of them fit the above description.)
*/
- frac = SR_MHZ(50) / devc->cur_samplerate - 1;
-
- clockselect.async = 0;
- clockselect.fraction = frac;
- clockselect.disabled_channels = 0;
-
- sigma_write_register(WRITE_CLOCK_SELECT,
- (uint8_t *) &clockselect,
- sizeof(clockselect), devc);
+ clockselect.fraction = SR_MHZ(50) / devc->samplerate - 1;
}
+ clock_idx = 0;
+ clock_bytes[clock_idx++] = clockselect.async;
+ clock_bytes[clock_idx++] = clockselect.fraction;
+ clock_bytes[clock_idx++] = clockselect.disabled_channels & 0xff;
+ clock_bytes[clock_idx++] = clockselect.disabled_channels >> 8;
+ sigma_write_register(WRITE_CLOCK_SELECT, clock_bytes, clock_idx, devc);
/* Setup maximum post trigger time. */
sigma_set_register(WRITE_POST_TRIGGER,
(devc->capture_ratio * 255) / 100, devc);
/* Start acqusition. */
- gettimeofday(&devc->start_tv, 0);
- sigma_set_register(WRITE_MODE, 0x0d, devc);
+ regval = WMR_TRGRES | WMR_SDRAMWRITEEN;
+#if ASIX_SIGMA_WITH_TRIGGER
+ regval |= WMR_TRGEN;
+#endif
+ sigma_set_register(WRITE_MODE, regval, devc);
- std_session_send_df_header(sdi, LOG_PREFIX);
+ std_session_send_df_header(sdi);
/* Add capture source. */
sr_session_source_add(sdi->session, -1, 0, 10, sigma_receive_data, (void *)sdi);
struct dev_context *devc;
devc = sdi->priv;
- devc->state.state = SIGMA_IDLE;
- sr_session_source_remove(sdi->session, -1);
+ /*
+ * When acquisition is currently running, keep the receive
+ * routine registered and have it stop the acquisition upon the
+ * next invocation. Else unregister the receive routine here
+ * already. The detour is required to have sample data retrieved
+ * for forced acquisition stops.
+ */
+ if (devc->state.state == SIGMA_CAPTURE) {
+ devc->state.state = SIGMA_STOPPING;
+ } else {
+ devc->state.state = SIGMA_IDLE;
+ sr_session_source_remove(sdi->session, -1);
+ }
return SR_OK;
}
projects / libsigrok.git / blobdiff