sr_dev_close(): Set status to SR_ST_INACTIVE.

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

diff --git a/src/hardware/kecheng-kc-330b/api.c b/src/hardware/kecheng-kc-330b/api.c
index e299a339b1efc5c445436d82e40f8a32b2dfb401..fa50dd698d7a56400e6fa890080404052657077c 100644 (file)
--- a/src/hardware/kecheng-kc-330b/api.c
+++ b/src/hardware/kecheng-kc-330b/api.c
@@ -61,13 +61,6 @@ static const char *data_sources[] = {
        "Memory",
 };
 
-SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info;
-
-static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
-{
-       return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
 static int scan_kecheng(struct sr_dev_driver *di,
                struct sr_usb_dev_inst *usb, char **model)
 {
@@ -119,7 +112,6 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
        (void)options;
 
        drvc = di->context;
-       drvc->instances = NULL;
 
        devices = NULL;
        if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) {
@@ -132,7 +124,6 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                        sdi->status = SR_ST_INACTIVE;
                        sdi->vendor = g_strdup(VENDOR);
                        sdi->model = model; /* Already g_strndup()'d. */
-                       sdi->driver = di;
                        sdi->inst_type = SR_INST_USB;
                        sdi->conn = l->data;
                        sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
@@ -150,33 +141,22 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
 
                        /* TODO: Set date/time? */
 
-                       drvc->instances = g_slist_append(drvc->instances, sdi);
                        devices = g_slist_append(devices, sdi);
                }
                g_slist_free(usb_devices);
        } else
                g_slist_free_full(usb_devices, g_free);
 
-       return devices;
-}
-
-static GSList *dev_list(const struct sr_dev_driver *di)
-{
-       return ((struct drv_context *)(di->context))->instances;
+       return std_scan_complete(di, devices);
 }
 
 static int dev_open(struct sr_dev_inst *sdi)
 {
        struct sr_dev_driver *di = sdi->driver;
-       struct drv_context *drvc;
+       struct drv_context *drvc = di->context;
        struct sr_usb_dev_inst *usb;
        int ret;
 
-       if (!(drvc = di->context)) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
        usb = sdi->conn;
 
        if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
@@ -191,27 +171,19 @@ static int dev_open(struct sr_dev_inst *sdi)
                sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
                return SR_ERR;
        }
-       sdi->status = SR_ST_ACTIVE;
 
-       return ret;
+       return SR_OK;
 }
 
 static int dev_close(struct sr_dev_inst *sdi)
 {
-       struct sr_dev_driver *di = sdi->driver;
        struct dev_context *devc;
        struct sr_usb_dev_inst *usb;
 
-       if (!di->context) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
        usb = sdi->conn;
 
        if (!usb->devhdl)
-               /*  Nothing to do. */
-               return SR_OK;
+               return SR_ERR_BUG;
 
        /* This allows a frontend to configure the device without ever
         * doing an acquisition step. */
@@ -222,26 +194,10 @@ static int dev_close(struct sr_dev_inst *sdi)
        libusb_release_interface(usb->devhdl, USB_INTERFACE);
        libusb_close(usb->devhdl);
        usb->devhdl = NULL;
-       sdi->status = SR_ST_INACTIVE;
 
        return SR_OK;
 }
 
-static int cleanup(const struct sr_dev_driver *di)
-{
-       int ret;
-       struct drv_context *drvc;
-
-       if (!(drvc = di->context))
-               /* Can get called on an unused driver, doesn't matter. */
-               return SR_OK;
-
-       ret = std_dev_clear(di, NULL);
-       g_free(drvc);
-
-       return ret;
-}
-
 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
@@ -294,7 +250,6 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
-       struct sr_dev_driver *di = sdi->driver;
        struct dev_context *devc;
        uint64_t p, q;
        unsigned int i;
@@ -303,14 +258,6 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
 
        (void)cg;
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
-       if (!di->context) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
        devc = sdi->priv;
        ret = SR_OK;
        switch (key) {
@@ -413,8 +360,7 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
        return SR_OK;
 }
 
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
-               void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 {
        struct sr_dev_driver *di = sdi->driver;
        struct drv_context *drvc;
@@ -428,17 +374,13 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
        int req_len, buf_len, len, ret;
        unsigned char buf[9];
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        drvc = di->context;
        devc = sdi->priv;
        usb = sdi->conn;
 
-       devc->cb_data = cb_data;
        devc->num_samples = 0;
 
-       std_session_send_df_header(cb_data, LOG_PREFIX);
+       std_session_send_df_header(sdi);
 
        if (devc->data_source == DATA_SOURCE_LIVE) {
                /* Force configuration. */
@@ -461,7 +403,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
                devc->stored_samples = (buf[7] << 8) | buf[8];
                if (devc->stored_samples == 0) {
                        /* Notify frontend of empty log by sending start/end packets. */
-                       std_session_send_df_end(cb_data, LOG_PREFIX);
+                       std_session_send_df_end(sdi);
                        return SR_OK;
                }
 
@@ -476,7 +418,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
                packet.type = SR_DF_META;
                packet.payload = &meta;
                meta.config = g_slist_append(NULL, src);
-               sr_session_send(devc->cb_data, &packet);
+               sr_session_send(sdi, &packet);
                g_free(src);
        }
 
@@ -523,15 +465,10 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
        return SR_OK;
 }
 
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 {
        struct dev_context *devc;
 
-       (void)cb_data;
-
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        /* Signal USB transfer handler to clean up and stop. */
        sdi->status = SR_ST_STOPPING;
 
@@ -549,14 +486,14 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
        return SR_OK;
 }
 
-SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info = {
+static struct sr_dev_driver kecheng_kc_330b_driver_info = {
        .name = "kecheng-kc-330b",
        .longname = "Kecheng KC-330B",
        .api_version = 1,
-       .init = init,
-       .cleanup = cleanup,
+       .init = std_init,
+       .cleanup = std_cleanup,
        .scan = scan,
-       .dev_list = dev_list,
+       .dev_list = std_dev_list,
        .dev_clear = NULL,
        .config_get = config_get,
        .config_set = config_set,
@@ -567,3 +504,4 @@ SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info = {
        .dev_acquisition_stop = dev_acquisition_stop,
        .context = NULL,
 };
+SR_REGISTER_DEV_DRIVER(kecheng_kc_330b_driver_info);