* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <glib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
+#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
-/* After hw_init() this will point to a device-specific entry (see above). */
-static struct sr_dev_driver *di = NULL;
-
SR_PRIV struct dmm_info dmms[] = {
{
"Digitek", "DT4000ZC", "2400/8n1", 2400,
};
/* Properly close and free all devices. */
-static int clear_instances(void)
+static int clear_instances(int dmm)
{
struct sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
GSList *l;
+ struct sr_dev_driver *di;
- /* di is not necessarily initialized */
- if (!di)
- return SR_OK;
+ di = dmms[dmm].di;
if (!(drvc = di->priv))
return SR_OK;
return SR_ERR_MALLOC;
}
- di = dmms[dmm].di;
sr_dbg("Selected '%s' subdriver.", dmms[dmm].di->name);
drvc->sr_ctx = sr_ctx;
- //// di->priv = drvc;
dmms[dmm].di->priv = drvc;
return SR_OK;
}
-/* Driver-specific hw_init() function wrappers */
-#define HW_INIT(X) static int hw_init_##X(struct sr_context *sr_ctx) \
- { return hw_init(sr_ctx, X); }
-HW_INIT(DIGITEK_DT4000ZC)
-HW_INIT(TEKPOWER_TP4000ZC)
-HW_INIT(METEX_ME31)
-HW_INIT(PEAKTECH_3410)
-HW_INIT(MASTECH_MAS345)
-HW_INIT(VA_VA18B)
-HW_INIT(METEX_M3640D)
-HW_INIT(PEAKTECH_4370)
-HW_INIT(PCE_PCE_DM32)
-HW_INIT(RADIOSHACK_22_168)
-HW_INIT(RADIOSHACK_22_812)
-
static GSList *scan(const char *conn, const char *serialcomm, int dmm)
{
struct sr_dev_inst *sdi;
if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
return NULL;
- sr_info("Probing port %s.", conn);
+ sr_info("Probing serial port %s.", conn);
- //// drvc = di->priv;
drvc = dmms[dmm].di->priv;
devices = NULL;
serial_flush(serial);
- /*
- * There's no way to get an ID from the multimeter. It just sends data
- * periodically, so the best we can do is check if the packets match
- * the expected format.
- */
-
- /* Let's get a bit of data and see if we can find a packet. */
- len = sizeof(buf);
-
/* Request a packet if the DMM requires this. */
if (dmms[dmm].packet_request) {
if ((ret = dmms[dmm].packet_request(serial)) < 0) {
}
}
+ /*
+ * There's no way to get an ID from the multimeter. It just sends data
+ * periodically (or upon request), so the best we can do is check if
+ * the packets match the expected format.
+ */
+
+ /* Let's get a bit of data and see if we can find a packet. */
+ len = sizeof(buf);
ret = serial_stream_detect(serial, buf, &len, dmms[dmm].packet_size,
dmms[dmm].packet_valid, 1000,
dmms[dmm].baudrate);
* If we dropped more than two packets worth of data, something is
* wrong. We shouldn't quit however, since the dropped bytes might be
* just zeroes at the beginning of the stream. Those can occur as a
- * combination of the nonstandard cable that ships with this device and
- * the serial port or USB to serial adapter.
+ * combination of the nonstandard cable that ships with some devices
+ * and the serial port or USB to serial adapter.
*/
dropped = len - dmms[dmm].packet_size;
if (dropped > 2 * dmms[dmm].packet_size)
}
devc->serial = serial;
+ devc->subdriver = dmm;
sdi->priv = devc;
sdi->driver = dmms[dmm].di;
return devices;
}
-/* Driver-specific hw_scan() function wrappers */
-#define HW_SCAN(X) static GSList *hw_scan_##X(GSList *options) \
- { return hw_scan(options, X); }
-HW_SCAN(DIGITEK_DT4000ZC)
-HW_SCAN(TEKPOWER_TP4000ZC)
-HW_SCAN(METEX_ME31)
-HW_SCAN(PEAKTECH_3410)
-HW_SCAN(MASTECH_MAS345)
-HW_SCAN(VA_VA18B)
-HW_SCAN(METEX_M3640D)
-HW_SCAN(PEAKTECH_4370)
-HW_SCAN(PCE_PCE_DM32)
-HW_SCAN(RADIOSHACK_22_168)
-HW_SCAN(RADIOSHACK_22_812)
-
static GSList *hw_dev_list(int dmm)
{
struct drv_context *drvc;
return drvc->instances;
}
-/* Driver-specific hw_dev_list() function wrappers */
-#define HW_DEV_LIST(X) static GSList *hw_dev_list_##X(void) \
- { return hw_dev_list(X); }
-HW_DEV_LIST(DIGITEK_DT4000ZC)
-HW_DEV_LIST(TEKPOWER_TP4000ZC)
-HW_DEV_LIST(METEX_ME31)
-HW_DEV_LIST(PEAKTECH_3410)
-HW_DEV_LIST(MASTECH_MAS345)
-HW_DEV_LIST(VA_VA18B)
-HW_DEV_LIST(METEX_M3640D)
-HW_DEV_LIST(PEAKTECH_4370)
-HW_DEV_LIST(PCE_PCE_DM32)
-HW_DEV_LIST(RADIOSHACK_22_168)
-HW_DEV_LIST(RADIOSHACK_22_812)
-
static int hw_dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
return SR_OK;
}
-static int hw_cleanup(void)
+static int hw_cleanup(int dmm)
{
- clear_instances();
+ clear_instances(dmm);
return SR_OK;
}
/* Poll every 50ms, or whenever some data comes in. */
sr_source_add(devc->serial->fd, G_IO_IN, 50,
- dmms[sdi->driver->subdriver].receive_data, (void *)sdi);
+ dmms[devc->subdriver].receive_data, (void *)sdi);
return SR_OK;
}
return SR_OK;
}
-/* Driver structs */
+/* Driver-specific API function wrappers */
+#define HW_INIT(X) \
+static int hw_init_##X(struct sr_context *sr_ctx) { return hw_init(sr_ctx, X); }
+#define HW_CLEANUP(X) \
+static int hw_cleanup_##X(void) { return hw_cleanup(X); }
+#define HW_SCAN(X) \
+static GSList *hw_scan_##X(GSList *options) { return hw_scan(options, X); }
+#define HW_DEV_LIST(X) \
+static GSList *hw_dev_list_##X(void) { return hw_dev_list(X); }
+#define CLEAR_INSTANCES(X) \
+static int clear_instances_##X(void) { return clear_instances(X); }
+
+/* Driver structs and API function wrappers */
#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
+HW_INIT(ID_UPPER) \
+HW_CLEANUP(ID_UPPER) \
+HW_SCAN(ID_UPPER) \
+HW_DEV_LIST(ID_UPPER) \
+CLEAR_INSTANCES(ID_UPPER) \
SR_PRIV struct sr_dev_driver ID##_driver_info = { \
.name = NAME, \
.longname = LONGNAME, \
.api_version = 1, \
.init = hw_init_##ID_UPPER, \
- .cleanup = hw_cleanup, \
+ .cleanup = hw_cleanup_##ID_UPPER, \
.scan = hw_scan_##ID_UPPER, \
.dev_list = hw_dev_list_##ID_UPPER, \
- .dev_clear = clear_instances, \
+ .dev_clear = clear_instances_##ID_UPPER, \
.dev_open = hw_dev_open, \
.dev_close = hw_dev_close, \
.info_get = hw_info_get, \
.dev_acquisition_start = hw_dev_acquisition_start, \
.dev_acquisition_stop = hw_dev_acquisition_stop, \
.priv = NULL, \
- .subdriver = ID_UPPER, \
};
+
DRV(digitek_dt4000zc, DIGITEK_DT4000ZC, "digitek-dt4000zc", "Digitek DT4000ZC")
DRV(tekpower_tp4000zc, TEKPOWER_TP4000ZC, "tekpower-tp4000zc", "TekPower TP4000ZC")
DRV(metex_me31, METEX_ME31, "metex-me31", "Metex ME-31")
projects / libsigrok.git / blobdiff