SR_PRIV int fx2lafw_command_start_acquisition(const struct sr_dev_inst *sdi)
{
- struct dev_context *devc = sdi->priv;
- struct sr_usb_dev_inst *usb = sdi->conn;
- libusb_device_handle *devhdl = usb->devhdl;
- uint64_t samplerate = devc->cur_samplerate;
- gboolean samplewide = devc->sample_wide;
- struct cmd_start_acquisition cmd = { 0 };
- int delay = 0, ret;
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ uint64_t samplerate;
+ struct cmd_start_acquisition cmd;
+ int delay, ret;
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+ samplerate = devc->cur_samplerate;
/* Compute the sample rate. */
- if (samplewide && samplerate > MAX_16BIT_SAMPLE_RATE) {
+ if (devc->sample_wide && samplerate > MAX_16BIT_SAMPLE_RATE) {
sr_err("Unable to sample at %" PRIu64 "Hz "
"when collecting 16-bit samples.", samplerate);
return SR_ERR;
}
+ delay = 0;
+ cmd.flags = cmd.sample_delay_h = cmd.sample_delay_l = 0;
if ((SR_MHZ(48) % samplerate) == 0) {
cmd.flags = CMD_START_FLAGS_CLK_48MHZ;
delay = SR_MHZ(48) / samplerate - 1;
cmd.sample_delay_l = delay & 0xff;
/* Select the sampling width. */
- cmd.flags |= samplewide ? CMD_START_FLAGS_SAMPLE_16BIT :
+ cmd.flags |= devc->sample_wide ? CMD_START_FLAGS_SAMPLE_16BIT :
CMD_START_FLAGS_SAMPLE_8BIT;
/* Send the control message. */
- ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 100);
if (ret < 0) {
struct dev_context *devc;
struct drv_context *drvc;
struct version_info vi;
- int ret, skip, i, device_count;
+ int ret, i, device_count;
uint8_t revid;
+ char connection_id[64];
drvc = di->priv;
devc = sdi->priv;
/* Device is already in use. */
return SR_ERR;
- skip = 0;
device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
if (device_count < 0) {
sr_err("Failed to get device list: %s.",
|| des.idProduct != devc->profile->pid)
continue;
- if (sdi->status == SR_ST_INITIALIZING) {
- if (skip != sdi->index) {
- /* Skip devices of this type that aren't the one we want. */
- skip += 1;
- continue;
- }
- } else if (sdi->status == SR_ST_INACTIVE) {
+ if ((sdi->status == SR_ST_INITIALIZING) ||
+ (sdi->status == SR_ST_INACTIVE)) {
/*
- * This device is fully enumerated, so we need to find
- * this device by vendor, product, bus and address.
+ * Check device by its physical USB bus/port address.
*/
- if (libusb_get_bus_number(devlist[i]) != usb->bus
- || libusb_get_device_address(devlist[i]) != usb->address)
+ usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
+ if (strcmp(sdi->connection_id, connection_id))
/* This is not the one. */
continue;
}
}
sdi->status = SR_ST_ACTIVE;
- sr_info("Opened device %d on %d.%d, "
+ sr_info("Opened device on %d.%d (logical) / %s (physical), "
"interface %d, firmware %d.%d.",
- sdi->index, usb->bus, usb->address,
+ usb->bus, usb->address, connection_id,
USB_INTERFACE, vi.major, vi.minor);
sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.",
}
if (devc->trigger_fired) {
- if (devc->sent_samples < devc->limit_samples) {
+ if (!devc->limit_samples || devc->sent_samples < devc->limit_samples) {
/* Send the incoming transfer to the session bus. */
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
- if (devc->sent_samples + cur_sample_count > devc->limit_samples)
+ if (devc->limit_samples && devc->sent_samples + cur_sample_count > devc->limit_samples)
num_samples = devc->limit_samples - devc->sent_samples;
else
num_samples = cur_sample_count;