*/
#include <config.h>
-#include "protocol.h"
-#include "dslogic.h"
#include <math.h>
+#include "protocol.h"
static const struct dslogic_profile supported_device[] = {
/* DreamSourceLab DSLogic */
return SR_OK;
}
-static int receive_data(int fd, int revents, void *cb_data)
-{
- struct timeval tv;
- struct drv_context *drvc;
-
- (void)fd;
- (void)revents;
-
- drvc = (struct drv_context *)cb_data;
-
- tv.tv_sec = tv.tv_usec = 0;
- libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
-
- return TRUE;
-}
-
-static int start_transfers(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- struct libusb_transfer *transfer;
- unsigned int i, num_transfers;
- int timeout, ret;
- unsigned char *buf;
- size_t size;
-
- devc = sdi->priv;
- usb = sdi->conn;
-
- devc->sent_samples = 0;
- devc->acq_aborted = FALSE;
- devc->empty_transfer_count = 0;
- devc->trigger_fired = TRUE;
-
- num_transfers = dslogic_get_number_of_transfers(devc);
-
- if (devc->cur_samplerate == SR_MHZ(100))
- num_transfers = 16;
- else if (devc->cur_samplerate == SR_MHZ(200))
- num_transfers = 8;
- else if (devc->cur_samplerate == SR_MHZ(400))
- num_transfers = 4;
-
- size = dslogic_get_buffer_size(devc);
- devc->submitted_transfers = 0;
-
- devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
- if (!devc->transfers) {
- sr_err("USB transfers malloc failed.");
- return SR_ERR_MALLOC;
- }
-
- timeout = dslogic_get_timeout(devc);
- devc->num_transfers = num_transfers;
- for (i = 0; i < num_transfers; i++) {
- if (!(buf = g_try_malloc(size))) {
- sr_err("USB transfer buffer malloc failed.");
- return SR_ERR_MALLOC;
- }
- transfer = libusb_alloc_transfer(0);
- libusb_fill_bulk_transfer(transfer, usb->devhdl,
- 6 | LIBUSB_ENDPOINT_IN, buf, size,
- dslogic_receive_transfer, (void *)sdi, timeout);
- sr_info("submitting transfer: %d", i);
- if ((ret = libusb_submit_transfer(transfer)) != 0) {
- sr_err("Failed to submit transfer: %s.",
- libusb_error_name(ret));
- libusb_free_transfer(transfer);
- g_free(buf);
- dslogic_abort_acquisition(devc);
- return SR_ERR;
- }
- devc->transfers[i] = transfer;
- devc->submitted_transfers++;
- }
-
- std_session_send_df_header(sdi);
-
- return SR_OK;
-}
-
-static void LIBUSB_CALL trigger_receive(struct libusb_transfer *transfer)
-{
- const struct sr_dev_inst *sdi;
- struct dslogic_trigger_pos *tpos;
- struct dev_context *devc;
-
- sdi = transfer->user_data;
- devc = sdi->priv;
- if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
- sr_dbg("Trigger transfer canceled.");
- /* Terminate session. */
- std_session_send_df_end(sdi);
- usb_source_remove(sdi->session, devc->ctx);
- devc->num_transfers = 0;
- g_free(devc->transfers);
- } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
- && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
- tpos = (struct dslogic_trigger_pos *)transfer->buffer;
- sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos,
- tpos->ram_saddr, tpos->remain_cnt);
- devc->trigger_pos = tpos->real_pos;
- g_free(tpos);
- start_transfers(sdi);
- }
- libusb_free_transfer(transfer);
-}
-
-static int trigger_request(const struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
- struct libusb_transfer *transfer;
- struct dslogic_trigger_pos *tpos;
- struct dev_context *devc;
- int ret;
-
- usb = sdi->conn;
- devc = sdi->priv;
-
- if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
- return ret;
-
- if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
- return ret;
-
- if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
- return ret;
-
- sr_dbg("Getting trigger.");
- tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
- transfer = libusb_alloc_transfer(0);
- libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
- (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
- trigger_receive, (void *)sdi, 0);
- if ((ret = libusb_submit_transfer(transfer)) < 0) {
- sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
- libusb_free_transfer(transfer);
- g_free(tpos);
- return SR_ERR;
- }
-
- devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
- if (!devc->transfers) {
- sr_err("USB trigger_pos transfer malloc failed.");
- return SR_ERR_MALLOC;
- }
- devc->num_transfers = 1;
- devc->submitted_transfers++;
- devc->transfers[0] = transfer;
-
- return ret;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi)
-{
- struct sr_dev_driver *di;
- struct drv_context *drvc;
- struct dev_context *devc;
- int timeout;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- di = sdi->driver;
- drvc = di->context;
- devc = sdi->priv;
-
- devc->ctx = drvc->sr_ctx;
- devc->sent_samples = 0;
- devc->empty_transfer_count = 0;
- devc->acq_aborted = FALSE;
-
- timeout = dslogic_get_timeout(devc);
- usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
-
- trigger_request(sdi);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi)
-{
- dslogic_stop_acquisition(sdi);
-
- dslogic_abort_acquisition(sdi->priv);
-
- return SR_OK;
-}
-
static struct sr_dev_driver dslogic_driver_info = {
.name = "dslogic",
.longname = "DreamSourceLabs DSLogic",
.config_list = config_list,
.dev_open = dev_open,
.dev_close = dev_close,
- .dev_acquisition_start = dev_acquisition_start,
- .dev_acquisition_stop = dev_acquisition_stop,
+ .dev_acquisition_start = dslogic_acquisition_start,
+ .dev_acquisition_stop = dslogic_acquisition_stop,
.context = NULL,
};
SR_REGISTER_DEV_DRIVER(dslogic_driver_info);
projects / libsigrok.git / blobdiff