]> sigrok.org Git - libsigrok.git/blobdiff - src/hardware/fx2lafw/protocol.c
dslogic: Add support for external clock edge selection.
[libsigrok.git] / src / hardware / fx2lafw / protocol.c
index 8fe7b6c1fea5713a21b6066a6be5e424f43e045a..0fc3be264ef0df9da26643ae1ea90eae19d4831d 100644 (file)
@@ -125,6 +125,8 @@ SR_PRIV int fx2lafw_command_start_acquisition(const struct sr_dev_inst *sdi)
        /* Select the sampling width. */
        cmd.flags |= devc->sample_wide ? CMD_START_FLAGS_SAMPLE_16BIT :
                CMD_START_FLAGS_SAMPLE_8BIT;
+       /* Enable CTL2 clock. */
+       cmd.flags |= (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) ? CMD_START_FLAGS_CLK_CTL2 : 0;
 
        /* Send the control message. */
        ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
@@ -304,7 +306,8 @@ SR_PRIV struct dev_context *fx2lafw_dev_new(void)
        devc->limit_samples = 0;
        devc->capture_ratio = 0;
        devc->sample_wide = FALSE;
-       devc->trigger_en = FALSE;
+       devc->dslogic_continuous_mode = FALSE;
+       devc->dslogic_clock_edge = DS_EDGE_RISING;
        devc->stl = NULL;
 
        return devc;
@@ -324,21 +327,21 @@ SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc)
 
 static void finish_acquisition(struct sr_dev_inst *sdi)
 {
-       struct sr_datafeed_packet packet;
        struct dev_context *devc;
 
        devc = sdi->priv;
 
-       /* Terminate session. */
-       packet.type = SR_DF_END;
-       sr_session_send(sdi, &packet);
+       std_session_send_df_end(sdi, LOG_PREFIX);
 
-       /* Remove fds from polling. */
        usb_source_remove(sdi->session, devc->ctx);
 
        devc->num_transfers = 0;
        g_free(devc->transfers);
 
+       /* Free the deinterlace buffers if we had them */
+       g_free(devc->logic_buffer);
+       g_free(devc->analog_buffer);
+
        if (devc->stl) {
                soft_trigger_logic_free(devc->stl);
                devc->stl = NULL;
@@ -382,13 +385,78 @@ static void resubmit_transfer(struct libusb_transfer *transfer)
 
 }
 
+SR_PRIV void mso_send_data_proc(struct sr_dev_inst *sdi,
+       uint8_t *data, size_t length, size_t sample_width)
+{
+       size_t i;
+       struct dev_context *devc;
+
+       (void)sample_width;
+
+       devc = sdi->priv;
+
+       length /= 2;
+
+       /* Send the logic */
+       for (i = 0; i < length; i++) {
+               devc->logic_buffer[i]  = data[i * 2];
+               /* Rescale to -10V - +10V from 0-255. */
+               devc->analog_buffer[i] = data[i * 2 + 1] - 128.0f / 12.8f;
+       };
+
+       const struct sr_datafeed_logic logic = {
+               .length = length,
+               .unitsize = 1,
+               .data = devc->logic_buffer
+       };
+
+       const struct sr_datafeed_packet logic_packet = {
+               .type = SR_DF_LOGIC,
+               .payload = &logic
+       };
+
+       sr_session_send(sdi, &logic_packet);
+
+       const struct sr_datafeed_analog_old analog = {
+               .channels = devc->enabled_analog_channels,
+               .num_samples = length,
+               .mq = SR_MQ_VOLTAGE,
+               .unit = SR_UNIT_VOLT,
+               .mqflags = 0 /*SR_MQFLAG_DC*/,
+               .data = devc->analog_buffer
+       };
+
+       const struct sr_datafeed_packet analog_packet = {
+               .type = SR_DF_ANALOG_OLD,
+               .payload = &analog
+       };
+
+       sr_session_send(sdi, &analog_packet);
+}
+
+SR_PRIV void la_send_data_proc(struct sr_dev_inst *sdi,
+       uint8_t *data, size_t length, size_t sample_width)
+{
+       const struct sr_datafeed_logic logic = {
+               .length = length,
+               .unitsize = sample_width,
+               .data = data
+       };
+
+       const struct sr_datafeed_packet packet = {
+               .type = SR_DF_LOGIC,
+               .payload = &logic
+       };
+
+       sr_session_send(sdi, &packet);
+}
+
 SR_PRIV void LIBUSB_CALL fx2lafw_receive_transfer(struct libusb_transfer *transfer)
 {
        struct sr_dev_inst *sdi;
        struct dev_context *devc;
        gboolean packet_has_error = FALSE;
        struct sr_datafeed_packet packet;
-       struct sr_datafeed_logic logic;
        unsigned int num_samples;
        int trigger_offset, cur_sample_count, unitsize;
        int pre_trigger_samples;
@@ -441,38 +509,51 @@ SR_PRIV void LIBUSB_CALL fx2lafw_receive_transfer(struct libusb_transfer *transf
        } else {
                devc->empty_transfer_count = 0;
        }
-       if (devc->trigger_en)
-               devc->trigger_fired = TRUE;
        if (devc->trigger_fired) {
                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->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;
-                       logic.length = num_samples * unitsize;
-                       logic.unitsize = unitsize;
-                       logic.data = transfer->buffer;
-                       sr_session_send(devc->cb_data, &packet);
-                       devc->sent_samples += num_samples;
+
+                       if(devc->dslogic && devc->trigger_pos > devc->sent_samples
+                               && devc->trigger_pos <= devc->sent_samples + num_samples){
+                                       /* dslogic trigger in this block. Send trigger position */
+                                       trigger_offset = devc->trigger_pos - devc->sent_samples;
+                                       /* pre-trigger samples */
+                                       devc->send_data_proc(sdi, (uint8_t *)transfer->buffer,
+                                               trigger_offset * unitsize, unitsize);
+                                       devc->sent_samples += trigger_offset;
+                                       /* trigger position */
+                                       devc->trigger_pos = 0;
+                                       packet.type = SR_DF_TRIGGER;
+                                       packet.payload = NULL;
+                                       sr_session_send(sdi, &packet);
+                                       /* post trigger samples */
+                                       num_samples -= trigger_offset;
+                                       devc->send_data_proc(sdi, (uint8_t *)transfer->buffer
+                                                       + trigger_offset * unitsize,    num_samples * unitsize, unitsize);
+                                       devc->sent_samples += num_samples;
+                       }else{
+                               devc->send_data_proc(sdi, (uint8_t *)transfer->buffer,
+                                       num_samples * unitsize, unitsize);
+                               devc->sent_samples += num_samples;
+                       }
                }
        } else {
                trigger_offset = soft_trigger_logic_check(devc->stl,
                        transfer->buffer, transfer->actual_length, &pre_trigger_samples);
                if (trigger_offset > -1) {
                        devc->sent_samples += pre_trigger_samples;
-                       packet.type = SR_DF_LOGIC;
-                       packet.payload = &logic;
                        num_samples = cur_sample_count - trigger_offset;
                        if (devc->limit_samples &&
                                        num_samples > devc->limit_samples - devc->sent_samples)
                                num_samples = devc->limit_samples - devc->sent_samples;
-                       logic.length = num_samples * unitsize;
-                       logic.unitsize = unitsize;
-                       logic.data = transfer->buffer + trigger_offset * unitsize;
-                       sr_session_send(devc->cb_data, &packet);
+
+                       devc->send_data_proc(sdi, (uint8_t *)transfer->buffer
+                                       + trigger_offset * unitsize,
+                                       num_samples * unitsize, unitsize);
                        devc->sent_samples += num_samples;
 
                        devc->trigger_fired = TRUE;