Drop unnecessary struct sr_dev_driver forward declarations

[libsigrok.git] / src / hardware / kecheng-kc-330b / protocol.c

diff --git a/src/hardware/kecheng-kc-330b/protocol.c b/src/hardware/kecheng-kc-330b/protocol.c
index e4550d2133220f9661d2c973f36e0644a9b9f826..644d9677784addd0f173301250179a47a2b99065 100644 (file)
--- a/src/hardware/kecheng-kc-330b/protocol.c
+++ b/src/hardware/kecheng-kc-330b/protocol.c
@@ -20,8 +20,6 @@
 #include <config.h>
 #include <string.h>
 #include "protocol.h"
-
-extern struct sr_dev_driver kecheng_kc_330b_driver_info;
 extern const uint64_t kecheng_kc_330b_sample_intervals[][2];
 
 SR_PRIV int kecheng_kc_330b_handle_events(int fd, int revents, void *cb_data)
@@ -29,7 +27,6 @@ SR_PRIV int kecheng_kc_330b_handle_events(int fd, int revents, void *cb_data)
        struct sr_dev_driver *di;
        struct drv_context *drvc;
        struct dev_context *devc;
-       struct sr_datafeed_packet packet;
        struct sr_dev_inst *sdi;
        struct sr_usb_dev_inst *usb;
        struct timeval tv;
@@ -54,8 +51,7 @@ SR_PRIV int kecheng_kc_330b_handle_events(int fd, int revents, void *cb_data)
        if (sdi->status == SR_ST_STOPPING) {
                libusb_free_transfer(devc->xfer);
                usb_source_remove(sdi->session, drvc->sr_ctx);
-               packet.type = SR_DF_END;
-               sr_session_send(cb_data, &packet);
+               std_session_send_df_end(sdi, LOG_PREFIX);
                sdi->status = SR_ST_ACTIVE;
                return TRUE;
        }
@@ -71,8 +67,7 @@ SR_PRIV int kecheng_kc_330b_handle_events(int fd, int revents, void *cb_data)
                        if (ret != 0 || len != 1) {
                                sr_dbg("Failed to request new acquisition: %s",
                                                libusb_error_name(ret));
-                               sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi,
-                                               devc->cb_data);
+                               sdi->driver->dev_acquisition_stop(sdi);
                                return TRUE;
                        }
                        libusb_submit_transfer(devc->xfer);
@@ -93,8 +88,7 @@ SR_PRIV int kecheng_kc_330b_handle_events(int fd, int revents, void *cb_data)
                if (ret != 0 || len != 4) {
                        sr_dbg("Failed to request next chunk: %s",
                                        libusb_error_name(ret));
-                       sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi,
-                                       devc->cb_data);
+                       sdi->driver->dev_acquisition_stop(sdi);
                        return TRUE;
                }
                libusb_submit_transfer(devc->xfer);
@@ -121,8 +115,7 @@ static void send_data(const struct sr_dev_inst *sdi, void *buf, unsigned int buf
        analog.data = buf;
        packet.type = SR_DF_ANALOG_OLD;
        packet.payload = &analog;
-       sr_session_send(devc->cb_data, &packet);
-
+       sr_session_send(sdi, &packet);
 }
 
 SR_PRIV void LIBUSB_CALL kecheng_kc_330b_receive_transfer(struct libusb_transfer *transfer)
@@ -139,8 +132,7 @@ SR_PRIV void LIBUSB_CALL kecheng_kc_330b_receive_transfer(struct libusb_transfer
        switch (transfer->status) {
        case LIBUSB_TRANSFER_NO_DEVICE:
                /* USB device was unplugged. */
-               sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi,
-                               devc->cb_data);
+               sdi->driver->dev_acquisition_stop(sdi);
                return;
        case LIBUSB_TRANSFER_COMPLETED:
        case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though */
@@ -161,8 +153,7 @@ SR_PRIV void LIBUSB_CALL kecheng_kc_330b_receive_transfer(struct libusb_transfer
                        send_data(sdi, fvalue, 1);
                        devc->num_samples++;
                        if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
-                               sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi,
-                                               devc->cb_data);
+                               sdi->driver->dev_acquisition_stop(sdi);
                        } else {
                                /* let USB event handler fire off another
                                 * request when the time is right. */
@@ -182,8 +173,7 @@ SR_PRIV void LIBUSB_CALL kecheng_kc_330b_receive_transfer(struct libusb_transfer
                        send_data(sdi, fvalue, 1);
                        devc->num_samples += num_samples;
                        if (devc->num_samples >= devc->stored_samples) {
-                               sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi,
-                                               devc->cb_data);
+                               sdi->driver->dev_acquisition_stop(sdi);
                        } else {
                                /* let USB event handler fire off another
                                 * request when the time is right. */