]> sigrok.org Git - libsigrok.git/blobdiff - hardware/serial-dmm/api.c
serial-dmm: Add Voltcraft VC-840 (UT-D02) support.
[libsigrok.git] / hardware / serial-dmm / api.c
index b944668dcc43998d9863cfe75b15a50e483532da..b132ee4224a323fe535bc7d0e1e9116fe65c39fb 100644 (file)
  * 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"
@@ -58,9 +58,8 @@ SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
 SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
 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 sr_dev_driver voltcraft_vc820_ser_driver_info;
+SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info;
 
 SR_PRIV struct dmm_info dmms[] = {
        {
@@ -140,6 +139,20 @@ SR_PRIV struct dmm_info dmms[] = {
                NULL,
                &radioshack_22_812_driver_info, receive_data_RADIOSHACK_22_812,
        },
+       {
+               "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
+               2400, FS9721_PACKET_SIZE, NULL,
+               sr_fs9721_packet_valid, sr_fs9721_parse,
+               NULL,
+               &voltcraft_vc820_ser_driver_info, receive_data_VOLTCRAFT_VC820,
+       },
+       {
+               "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
+               2400, FS9721_PACKET_SIZE, NULL,
+               sr_fs9721_packet_valid, sr_fs9721_parse,
+               NULL,
+               &voltcraft_vc840_ser_driver_info, receive_data_VOLTCRAFT_VC840,
+       },
 };
 
 /* Properly close and free all devices. */
@@ -171,21 +184,6 @@ static int clear_instances(int dmm)
        return SR_OK;
 }
 
-/* Driver-specific clear_instances() function wrappers */
-#define CLEAR_INSTANCES(X) static int clear_instances_##X(void) \
-                                       { return clear_instances(X); }
-CLEAR_INSTANCES(DIGITEK_DT4000ZC)
-CLEAR_INSTANCES(TEKPOWER_TP4000ZC)
-CLEAR_INSTANCES(METEX_ME31)
-CLEAR_INSTANCES(PEAKTECH_3410)
-CLEAR_INSTANCES(MASTECH_MAS345)
-CLEAR_INSTANCES(VA_VA18B)
-CLEAR_INSTANCES(METEX_M3640D)
-CLEAR_INSTANCES(PEAKTECH_4370)
-CLEAR_INSTANCES(PCE_PCE_DM32)
-CLEAR_INSTANCES(RADIOSHACK_22_168)
-CLEAR_INSTANCES(RADIOSHACK_22_812)
-
 static int hw_init(struct sr_context *sr_ctx, int dmm)
 {
        struct drv_context *drvc;
@@ -195,31 +193,14 @@ static int hw_init(struct sr_context *sr_ctx, int dmm)
                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;
@@ -238,22 +219,12 @@ static GSList *scan(const char *conn, const char *serialcomm, int dmm)
        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) {
@@ -262,6 +233,14 @@ static GSList *scan(const char *conn, const char *serialcomm, int dmm)
                }
        }
 
+       /*
+        * 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);
@@ -272,8 +251,8 @@ static GSList *scan(const char *conn, const char *serialcomm, int dmm)
         * 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)
@@ -338,21 +317,6 @@ static GSList *hw_scan(GSList *options, int dmm)
        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;
@@ -362,21 +326,6 @@ static GSList *hw_dev_list(int dmm)
        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;
@@ -418,20 +367,6 @@ static int hw_cleanup(int dmm)
        return SR_OK;
 }
 
-/* Driver-specific hw_cleanup() function wrappers */
-#define HW_CLEANUP(X) static int hw_cleanup_##X(void) { return hw_cleanup(X); }
-HW_CLEANUP(DIGITEK_DT4000ZC)
-HW_CLEANUP(TEKPOWER_TP4000ZC)
-HW_CLEANUP(METEX_ME31)
-HW_CLEANUP(PEAKTECH_3410)
-HW_CLEANUP(MASTECH_MAS345)
-HW_CLEANUP(VA_VA18B)
-HW_CLEANUP(METEX_M3640D)
-HW_CLEANUP(PEAKTECH_4370)
-HW_CLEANUP(PCE_PCE_DM32)
-HW_CLEANUP(RADIOSHACK_22_168)
-HW_CLEANUP(RADIOSHACK_22_812)
-
 static int hw_info_get(int info_id, const void **data,
                       const struct sr_dev_inst *sdi)
 {
@@ -486,7 +421,7 @@ static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
 }
 
 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
-                                   void *cb_data)
+                                   void *cb_data, int dmm)
 {
        struct sr_datafeed_packet packet;
        struct sr_datafeed_header header;
@@ -526,7 +461,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 
        /* 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[dmm].receive_data, (void *)sdi);
 
        return SR_OK;
 }
@@ -557,8 +492,29 @@ static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
        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); }
+#define HW_DEV_ACQUISITION_START(X) \
+static int hw_dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
+void *cb_data) { return hw_dev_acquisition_start(sdi, cb_data, 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) \
+HW_DEV_ACQUISITION_START(ID_UPPER) \
 SR_PRIV struct sr_dev_driver ID##_driver_info = { \
        .name = NAME, \
        .longname = LONGNAME, \
@@ -572,11 +528,11 @@ SR_PRIV struct sr_dev_driver ID##_driver_info = { \
        .dev_close = hw_dev_close, \
        .info_get = hw_info_get, \
        .dev_config_set = hw_dev_config_set, \
-       .dev_acquisition_start = hw_dev_acquisition_start, \
+       .dev_acquisition_start = hw_dev_acquisition_start_##ID_UPPER, \
        .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")
@@ -588,3 +544,5 @@ DRV(peaktech_4370, PEAKTECH_4370, "peaktech-4370", "PeakTech 4370")
 DRV(pce_pce_dm32, PCE_PCE_DM32, "pce-pce-dm32", "PCE PCE-DM32")
 DRV(radioshack_22_168, RADIOSHACK_22_168, "radioshack-22-168", "RadioShack 22-168")
 DRV(radioshack_22_812, RADIOSHACK_22_812, "radioshack-22-812", "RadioShack 22-812")
+DRV(voltcraft_vc820_ser, VOLTCRAFT_VC820, "voltcraft-vc820-ser", "Voltcraft VC-820 (UT-D02 cable)")
+DRV(voltcraft_vc840_ser, VOLTCRAFT_VC840, "voltcraft-vc840-ser", "Voltcraft VC-840 (UT-D02 cable)")