#include "libsigrok.h"
#include "libsigrok-internal.h"
+/* Message logging helpers with driver-specific prefix string. */
+#define DRIVER_LOG_DOMAIN "hwdriver: "
+#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
+#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
+
/**
* @file
*
"Volts/div", NULL},
{SR_CONF_COUPLING, SR_T_CHAR, "coupling",
"Coupling", NULL},
+ {SR_CONF_DATALOG, SR_T_BOOL, "datalog",
+ "Datalog", NULL},
{0, 0, NULL, NULL, NULL},
};
/** @cond PRIVATE */
+#ifdef HAVE_HW_BRYMEN_DMM
+extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info;
+#endif
#ifdef HAVE_HW_COLEAD_SLM
extern SR_PRIV struct sr_dev_driver colead_slm_driver_info;
#endif
#ifdef HAVE_HW_LASCAR_EL_USB
extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info;
#endif
+#ifdef HAVE_HW_MIC_985XX
+extern SR_PRIV struct sr_dev_driver mic_98581_driver_info;
+extern SR_PRIV struct sr_dev_driver mic_98583_driver_info;
+#endif
#ifdef HAVE_HW_NEXUS_OSCIPRIME
extern SR_PRIV struct sr_dev_driver nexus_osciprime_driver_info;
#endif
/** @endcond */
static struct sr_dev_driver *drivers_list[] = {
+#ifdef HAVE_HW_BRYMEN_DMM
+ &brymen_bm857_driver_info,
+#endif
#ifdef HAVE_HW_COLEAD_SLM
&colead_slm_driver_info,
#endif
#ifdef HAVE_HW_LASCAR_EL_USB
&lascar_el_usb_driver_info,
#endif
+#ifdef HAVE_HW_MIC_985XX
+ &mic_98581_driver_info,
+ &mic_98583_driver_info,
+#endif
#ifdef HAVE_HW_NEXUS_OSCIPRIME
&nexus_osciprime_driver_info,
#endif
/**
* Initialize a hardware driver.
*
+ * This usually involves memory allocations and variable initializations
+ * within the driver, but _not_ scanning for attached devices.
+ * The API call sr_driver_scan() is used for that.
+ *
* @param ctx A libsigrok context object allocated by a previous call to
- * sr_init().
- * @param driver The driver to initialize.
+ * sr_init(). Must not be NULL.
+ * @param driver The driver to initialize. This must be a pointer to one of
+ * the entries returned by sr_driver_list(). Must not be NULL.
*
- * @return SR_OK if all went well, or an error code otherwise.
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid parameters,
+ * SR_ERR_BUG upon internal errors, or another negative error code
+ * upon other errors.
*/
SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver)
{
+ int ret;
- if (driver->init)
- return driver->init(ctx);
+ if (!ctx) {
+ sr_err("Invalid libsigrok context, can't initialize.");
+ return SR_ERR_ARG;
+ }
- return SR_OK;
+ if (!driver) {
+ sr_err("Invalid driver, can't initialize.");
+ return SR_ERR_ARG;
+ }
+
+ sr_spew("Initializing driver '%s'.", driver->name);
+ if ((ret = driver->init(ctx)) < 0)
+ sr_err("Failed to initialize the driver: %d.", ret);
+
+ return ret;
}
/**
* The order in which the system is scanned for devices is not specified. The
* caller should not assume or rely on any specific order.
*
- * @param driver The driver.
- * @param options A list of struct sr_hwopt options to pass to the driver's
- * scanner.
+ * Before calling sr_driver_scan(), the user must have previously initialized
+ * the driver by calling sr_driver_init().
*
- * @return A GSList * of struct sr_dev_inst, or NULL if no devices were found.
- * This list must be freed by the caller, but without freeing the data
- * pointed to in the list.
+ * @param driver The driver that should scan. This must be a pointer to one of
+ * the entries returned by sr_driver_list(). Must not be NULL.
+ * @param options A list of 'struct sr_hwopt' options to pass to the driver's
+ * scanner. Can be NULL/empty.
+ *
+ * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were
+ * found (or errors were encountered). This list must be freed by the
+ * caller using g_slist_free(), but without freeing the data pointed
+ * to in the list.
*/
SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options)
{
+ GSList *l;
- if (driver->scan)
- return driver->scan(options);
+ if (!driver) {
+ sr_err("Invalid driver, can't scan for devices.");
+ return NULL;
+ }
- return NULL;
+ if (!driver->priv) {
+ sr_err("Driver not initialized, can't scan for devices.");
+ return NULL;
+ }
+
+ l = driver->scan(options);
+
+ sr_spew("Scan of '%s' found %d devices.", driver->name,
+ g_slist_length(l));
+
+ return l;
}
/** @private */
* but this is not to be flagged as an error by the caller; merely
* as an indication that it's not applicable.
*/
-SR_API int sr_config_get(struct sr_dev_driver *driver, int key,
+SR_API int sr_config_get(const struct sr_dev_driver *driver, int key,
const void **data, const struct sr_dev_inst *sdi)
{
int ret;
if (!driver || !data)
return SR_ERR;
- if (!driver->config_get)
- return SR_ERR_ARG;
-
ret = driver->config_get(key, data, sdi);
return ret;
{
int ret;
- if (!sdi || !sdi->driver)
+ if (!sdi || !sdi->driver || !value)
return SR_ERR;
if (!sdi->driver->config_set)
* but this is not to be flagged as an error by the caller; merely
* as an indication that it's not applicable.
*/
-SR_API int sr_config_list(struct sr_dev_driver *driver, int key,
+SR_API int sr_config_list(const struct sr_dev_driver *driver, int key,
const void **data, const struct sr_dev_inst *sdi)
{
int ret;
if (!driver || !data)
return SR_ERR;
- if (!driver->config_list)
- return SR_ERR_ARG;
-
ret = driver->config_list(key, data, sdi);
return ret;
projects / libsigrok.git / blobdiff