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Add sr_dev_open()/sr_dev_close() 

Frontends will be required to open a device before using
sr_config_set() or starting acquisition.
This commit is contained in:
Bert Vermeulen 2013-04-23 00:21:57 +02:00
parent 46a743c1fa
commit efdecf4c05
3 changed files with 26 additions and 48 deletions
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24
device.c
View File

@ -361,4 +361,28 @@ SR_API int sr_dev_clear(const struct sr_dev_driver *driver)
return SR_OK;
}
SR_API int sr_dev_open(struct sr_dev_inst *sdi)
{
int ret;
if (!sdi || !sdi->driver || !sdi->driver->dev_open)
return SR_ERR;
ret = sdi->driver->dev_open(sdi);
return ret;
}
SR_API int sr_dev_close(struct sr_dev_inst *sdi)
{
int ret;
if (!sdi || !sdi->driver || !sdi->driver->dev_close)
return SR_ERR;
ret = sdi->driver->dev_close(sdi);
return ret;
}
/** @} */

2
proto.h
View File

@ -54,6 +54,8 @@ SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, int probenum,
SR_API gboolean sr_dev_has_option(const struct sr_dev_inst *sdi, int key);
SR_API GSList *sr_dev_list(const struct sr_dev_driver *driver);
SR_API int sr_dev_clear(const struct sr_dev_driver *driver);
SR_API int sr_dev_open(struct sr_dev_inst *sdi);
SR_API int sr_dev_close(struct sr_dev_inst *sdi);
/*--- filter.c --------------------------------------------------------------*/

48
session.c
View File

@ -116,48 +116,6 @@ SR_API int sr_session_destroy(void)
return SR_OK;
}
/**
* Close a device instance.
*
* @param sdi The device instance to close. Must not be NULL. Also,
* sdi->driver, sdi->driver->priv, and sdi->priv must not be NULL.
*/
static void sr_dev_close(struct sr_dev_inst *sdi)
{
int ret;
if (!sdi) {
sr_err("Invalid device instance, can't close device.");
return;
}
/* In the drivers sdi->priv is a 'struct dev_context *devc'. */
if (!sdi->priv) {
/*
* Should be sr_err() in theory, but the 'demo' driver has
* NULL for sdi->priv, so we use sr_dbg() until that's fixed.
*/
sr_dbg("Invalid device context, can't close device.");
return;
}
if (!sdi->driver) {
sr_err("Invalid driver, can't close device.");
return;
}
if (!sdi->driver->priv) {
sr_err("Driver not initialized, can't close device.");
return;
}
sr_spew("Closing '%s' device instance %d.", sdi->driver->name,
sdi->index);
if ((ret = sdi->driver->dev_close(sdi)) < 0)
sr_err("Failed to close device instance: %d.", ret);
}
/**
* Remove all the devices from the current session.
*
@ -190,7 +148,6 @@ SR_API int sr_session_dev_remove_all(void)
*/
SR_API int sr_session_dev_add(const struct sr_dev_inst *sdi)
{
int ret;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
@ -217,11 +174,6 @@ SR_API int sr_session_dev_add(const struct sr_dev_inst *sdi)
return SR_ERR_BUG;
}
if ((ret = sdi->driver->dev_open((struct sr_dev_inst *)sdi)) != SR_OK) {
sr_err("%s: dev_open failed (%d)", __func__, ret);
return ret;
}
session->devs = g_slist_append(session->devs, (gpointer)sdi);
return SR_OK;