]> sigrok.org Git - libsigrok.git/blobdiff - src/hardware/uni-t-ut32x/api.c
Put driver pointers into special section
[libsigrok.git] / src / hardware / uni-t-ut32x / api.c
index 87ff065e0294d82ca13148f917c255ce5bd8e3e3..789b72def626ca97bbbad01ae6965b3480d25093 100644 (file)
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "protocol.h"
-
+#include <config.h>
 #include <string.h>
+#include "protocol.h"
 
 static const uint32_t devopts[] = {
        SR_CONF_THERMOMETER,
-       SR_CONF_LIMIT_SAMPLES,
        SR_CONF_CONTINUOUS,
-       SR_CONF_DATA_SOURCE,
+       SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+       SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 };
 
-static char *channels[] = {
-       "T1",
-       "T2",
-       "T1-T2",
+static const char *channel_names[] = {
+       "T1", "T2", "T1-T2",
 };
 
 static const char *data_sources[] = {
@@ -39,27 +37,17 @@ static const char *data_sources[] = {
        "Memory",
 };
 
-SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
-static struct sr_dev_driver *di = &uni_t_ut32x_driver_info;
-
-
-static int init(struct sr_context *sr_ctx)
-{
-       return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options)
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
 {
        struct drv_context *drvc;
        struct dev_context *devc;
        struct sr_dev_inst *sdi;
-       struct sr_channel *ch;
        struct sr_config *src;
        GSList *usb_devices, *devices, *l;
-       int i;
+       unsigned int i;
        const char *conn;
 
-       drvc = di->priv;
+       drvc = di->context;
        drvc->instances = NULL;
 
        conn = NULL;
@@ -79,25 +67,17 @@ static GSList *scan(GSList *options)
                /* We have a list of sr_usb_dev_inst matching the connection
                 * string. Wrap them in sr_dev_inst and we're done. */
                for (l = usb_devices; l; l = l->next) {
-                       if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR,
-                                       MODEL, NULL)))
-                               return NULL;
+                       sdi = g_malloc0(sizeof(struct sr_dev_inst));
+                       sdi->status = SR_ST_INACTIVE;
+                       sdi->vendor = g_strdup(VENDOR);
+                       sdi->model = g_strdup(MODEL);
                        sdi->driver = di;
                        sdi->inst_type = SR_INST_USB;
                        sdi->conn = l->data;
-                       for (i = 0; i < 3; i++) {
-                               if (!(ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE,
-                                               channels[i]))) {
-                                       sr_dbg("Channel malloc failed.");
-                                       return NULL;
-                               }
-                               sdi->channels = g_slist_append(sdi->channels, ch);
-                       }
-
-                       if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
-                               sr_dbg("Device context malloc failed.");
-                               return NULL;
-                       }
+                       for (i = 0; i < ARRAY_SIZE(channel_names); i++)
+                               sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
+                                               channel_names[i]);
+                       devc = g_malloc0(sizeof(struct dev_context));
                        sdi->priv = devc;
                        devc->limit_samples = 0;
                        devc->data_source = DEFAULT_DATA_SOURCE;
@@ -111,29 +91,20 @@ static GSList *scan(GSList *options)
        return devices;
 }
 
-static GSList *dev_list(void)
-{
-       return ((struct drv_context *)(di->priv))->instances;
-}
-
 static int dev_open(struct sr_dev_inst *sdi)
 {
-       struct drv_context *drvc;
+       struct sr_dev_driver *di = sdi->driver;
+       struct drv_context *drvc = di->context;
        struct sr_usb_dev_inst *usb;
        int ret;
 
-       if (!(drvc = di->priv)) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
        usb = sdi->conn;
 
        if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
                return SR_ERR;
 
 /*
- * The libusbx 1.0.9 darwin backend is broken: it can report a kernel
+ * The libusb 1.0.9 Darwin backend is broken: it can report a kernel
  * driver being active, but detaching it always returns an error.
  */
 #if !defined(__APPLE__)
@@ -164,11 +135,6 @@ static int dev_close(struct sr_dev_inst *sdi)
 {
        struct sr_usb_dev_inst *usb;
 
-       if (!di->priv) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
        usb = sdi->conn;
        if (!usb->devhdl)
                /*  Nothing to do. */
@@ -182,23 +148,6 @@ static int dev_close(struct sr_dev_inst *sdi)
        return SR_OK;
 }
 
-static int cleanup(void)
-{
-       int ret;
-       struct drv_context *drvc;
-
-       if (!(drvc = di->priv))
-               /* Can get called on an unused driver, doesn't matter. */
-               return SR_OK;
-
-
-       ret = std_dev_clear(di, NULL);
-       g_free(drvc);
-       di->priv = NULL;
-
-       return ret;
-}
-
 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
@@ -228,7 +177,6 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
                const struct sr_channel_group *cg)
 {
        struct dev_context *devc;
-       int ret;
        const char *tmp_str;
 
        (void)cg;
@@ -236,18 +184,11 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
        if (sdi->status != SR_ST_ACTIVE)
                return SR_ERR_DEV_CLOSED;
 
-       if (!di->priv) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
        devc = sdi->priv;
-       ret = SR_OK;
+
        switch (key) {
        case SR_CONF_LIMIT_SAMPLES:
                devc->limit_samples = g_variant_get_uint64(data);
-               sr_dbg("Setting sample limit to %" PRIu64 ".",
-                      devc->limit_samples);
                break;
        case SR_CONF_DATA_SOURCE:
                tmp_str = g_variant_get_string(data, NULL);
@@ -259,16 +200,15 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
                        return SR_ERR;
                break;
        default:
-               ret = SR_ERR_NA;
+               return SR_ERR_NA;
        }
 
-       return ret;
+       return SR_OK;
 }
 
 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
-
        (void)sdi;
        (void)cg;
 
@@ -287,9 +227,9 @@ 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;
        struct dev_context *devc;
        struct sr_usb_dev_inst *usb;
@@ -299,11 +239,10 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
        if (sdi->status != SR_ST_ACTIVE)
                return SR_ERR_DEV_CLOSED;
 
-       drvc = di->priv;
+       drvc = di->context;
        devc = sdi->priv;
        usb = sdi->conn;
 
-       devc->cb_data = cb_data;
        devc->num_samples = 0;
        devc->packet_len = 0;
 
@@ -318,8 +257,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
                return SR_ERR;
        }
 
-       /* Send header packet to the session bus. */
-       std_session_send_df_header(cb_data, LOG_PREFIX);
+       std_session_send_df_header(sdi, LOG_PREFIX);
 
        if (!(devc->xfer = libusb_alloc_transfer(0)))
                return SR_ERR;
@@ -351,11 +289,8 @@ 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)
 {
-
-       (void)cb_data;
-
        if (sdi->status != SR_ST_ACTIVE)
                return SR_ERR_DEV_CLOSED;
 
@@ -365,14 +300,14 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
        return SR_OK;
 }
 
-SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info = {
+static struct sr_dev_driver uni_t_ut32x_driver_info = {
        .name = "uni-t-ut32x",
        .longname = "UNI-T UT32x",
        .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,
@@ -381,5 +316,6 @@ SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info = {
        .dev_close = dev_close,
        .dev_acquisition_start = dev_acquisition_start,
        .dev_acquisition_stop = dev_acquisition_stop,
-       .priv = NULL,
+       .context = NULL,
 };
+SR_REGISTER_DEV_DRIVER(uni_t_ut32x_driver_info);