X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fserial-dmm%2Fprotocol.c;h=5e8912bf3d21c61906b25b0b21e7bd23b084c8dd;hb=db3aac1a295a778657935e100438bc0552ffeaaa;hp=0b2472fbb70401096073d0b24399fc07e0b633d7;hpb=155b680da482cea2381becb73c51cfb838bff31e;p=libsigrok.git
diff --git a/src/hardware/serial-dmm/protocol.c b/src/hardware/serial-dmm/protocol.c
index 0b2472fb..5e8912bf 100644
--- a/src/hardware/serial-dmm/protocol.c
+++ b/src/hardware/serial-dmm/protocol.c
@@ -18,64 +18,87 @@
* along with this program. If not, see .
*/
+#include
#include
#include
#include
-#include
#include
-#include "libsigrok.h"
+#include
#include "libsigrok-internal.h"
#include "protocol.h"
-static void log_dmm_packet(const uint8_t *buf)
+static void log_dmm_packet(const uint8_t *buf, size_t len)
{
- sr_dbg("DMM packet: %02x %02x %02x %02x %02x %02x %02x"
- " %02x %02x %02x %02x %02x %02x %02x",
- buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6],
- buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
+ GString *text;
+
+ text = sr_hexdump_new(buf, len);
+ sr_dbg("DMM packet: %s", text->str);
+ sr_hexdump_free(text);
}
static void handle_packet(const uint8_t *buf, struct sr_dev_inst *sdi,
- int dmm, void *info)
+ void *info)
{
+ struct dmm_info *dmm;
float floatval;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog analog;
+ struct sr_analog_encoding encoding;
+ struct sr_analog_meaning meaning;
+ struct sr_analog_spec spec;
struct dev_context *devc;
+ gboolean sent_sample;
+ struct sr_channel *channel;
+ size_t ch_idx;
- log_dmm_packet(buf);
- devc = sdi->priv;
-
- memset(&analog, 0, sizeof(struct sr_datafeed_analog));
-
- analog.channels = sdi->channels;
- analog.num_samples = 1;
- analog.mq = -1;
+ dmm = (struct dmm_info *)sdi->driver;
- dmms[dmm].packet_parse(buf, &floatval, &analog, info);
- analog.data = &floatval;
+ log_dmm_packet(buf, dmm->packet_size);
+ devc = sdi->priv;
- /* If this DMM needs additional handling, call the resp. function. */
- if (dmms[dmm].dmm_details)
- dmms[dmm].dmm_details(&analog, info);
+ sent_sample = FALSE;
+ memset(info, 0, dmm->info_size);
+ for (ch_idx = 0; ch_idx < dmm->channel_count; ch_idx++) {
+ /* Note: digits/spec_digits will be overridden by the DMM parsers. */
+ sr_analog_init(&analog, &encoding, &meaning, &spec, 0);
+
+ channel = g_slist_nth_data(sdi->channels, ch_idx);
+ analog.meaning->channels = g_slist_append(NULL, channel);
+ analog.num_samples = 1;
+ analog.meaning->mq = 0;
+
+ dmm->packet_parse(buf, &floatval, &analog, info);
+ analog.data = &floatval;
+
+ /* If this DMM needs additional handling, call the resp. function. */
+ if (dmm->dmm_details)
+ dmm->dmm_details(&analog, info);
+
+ if (analog.meaning->mq != 0 && channel->enabled) {
+ /* Got a measurement. */
+ packet.type = SR_DF_ANALOG;
+ packet.payload = &analog;
+ sr_session_send(sdi, &packet);
+ sent_sample = TRUE;
+ }
+ }
- if (analog.mq != -1) {
- /* Got a measurement. */
- packet.type = SR_DF_ANALOG;
- packet.payload = &analog;
- sr_session_send(devc->cb_data, &packet);
- devc->num_samples++;
+ if (sent_sample) {
+ sr_sw_limits_update_samples_read(&devc->limits, 1);
}
}
/** Request packet, if required. */
-SR_PRIV int req_packet(struct sr_dev_inst *sdi, int dmm)
+SR_PRIV int req_packet(struct sr_dev_inst *sdi)
{
+ struct dmm_info *dmm;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
int ret;
- if (!dmms[dmm].packet_request)
+ dmm = (struct dmm_info *)sdi->driver;
+
+ if (!dmm->packet_request)
return SR_OK;
devc = sdi->priv;
@@ -87,30 +110,33 @@ SR_PRIV int req_packet(struct sr_dev_inst *sdi, int dmm)
return SR_OK;
}
- ret = dmms[dmm].packet_request(serial);
+ ret = dmm->packet_request(serial);
if (ret < 0) {
sr_err("Failed to request packet: %d.", ret);
return ret;
}
- if (dmms[dmm].req_timeout_ms)
- devc->req_next_at = g_get_monotonic_time() + (dmms[dmm].req_timeout_ms * 1000);
+ if (dmm->req_timeout_ms)
+ devc->req_next_at = g_get_monotonic_time() + (dmm->req_timeout_ms * 1000);
return SR_OK;
}
-static void handle_new_data(struct sr_dev_inst *sdi, int dmm, void *info)
+static void handle_new_data(struct sr_dev_inst *sdi, void *info)
{
+ struct dmm_info *dmm;
struct dev_context *devc;
- int len, i, offset = 0;
+ int len, offset;
struct sr_serial_dev_inst *serial;
+ dmm = (struct dmm_info *)sdi->driver;
+
devc = sdi->priv;
serial = sdi->conn;
/* Try to get as much data as the buffer can hold. */
len = DMM_BUFSIZE - devc->buflen;
- len = serial_read(serial, devc->buf + devc->buflen, len);
+ len = serial_read_nonblocking(serial, devc->buf + devc->buflen, len);
if (len == 0)
return; /* No new bytes, nothing to do. */
if (len < 0) {
@@ -120,34 +146,36 @@ static void handle_new_data(struct sr_dev_inst *sdi, int dmm, void *info)
devc->buflen += len;
/* Now look for packets in that data. */
- while ((devc->buflen - offset) >= dmms[dmm].packet_size) {
- if (dmms[dmm].packet_valid(devc->buf + offset)) {
- handle_packet(devc->buf + offset, sdi, dmm, info);
- offset += dmms[dmm].packet_size;
+ offset = 0;
+ while ((devc->buflen - offset) >= dmm->packet_size) {
+ if (dmm->packet_valid(devc->buf + offset)) {
+ handle_packet(devc->buf + offset, sdi, info);
+ offset += dmm->packet_size;
/* Request next packet, if required. */
- if (!dmms[dmm].packet_request)
+ if (!dmm->packet_request)
break;
- if (dmms[dmm].req_timeout_ms || dmms[dmm].req_delay_ms)
+ if (dmm->req_timeout_ms || dmm->req_delay_ms)
devc->req_next_at = g_get_monotonic_time() +
- dmms[dmm].req_delay_ms * 1000;
- req_packet(sdi, dmm);
+ dmm->req_delay_ms * 1000;
+ req_packet(sdi);
} else {
offset++;
}
}
/* If we have any data left, move it to the beginning of our buffer. */
- for (i = 0; i < devc->buflen - offset; i++)
- devc->buf[i] = devc->buf[offset + i];
+ if (devc->buflen > offset)
+ memmove(devc->buf, devc->buf + offset, devc->buflen - offset);
devc->buflen -= offset;
}
-static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
+int receive_data(int fd, int revents, void *cb_data)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
- int64_t time;
+ struct dmm_info *dmm;
+ void *info;
(void)fd;
@@ -157,69 +185,21 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
if (!(devc = sdi->priv))
return TRUE;
+ dmm = (struct dmm_info *)sdi->driver;
+
if (revents == G_IO_IN) {
/* Serial data arrived. */
- handle_new_data(sdi, dmm, info);
+ info = g_malloc(dmm->info_size);
+ handle_new_data(sdi, info);
+ g_free(info);
} else {
/* Timeout; send another packet request if DMM needs it. */
- if (dmms[dmm].packet_request && (req_packet(sdi, dmm) < 0))
+ if (dmm->packet_request && (req_packet(sdi) < 0))
return FALSE;
}
- if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
- sr_info("Requested number of samples reached.");
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
-
- if (devc->limit_msec) {
- time = (g_get_monotonic_time() - devc->starttime) / 1000;
- if (time > (int64_t)devc->limit_msec) {
- sr_info("Requested time limit reached.");
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
- }
+ if (sr_sw_limits_check(&devc->limits))
+ sr_dev_acquisition_stop(sdi);
return TRUE;
}
-
-#define RECEIVE_DATA(ID_UPPER, DMM_DRIVER) \
-SR_PRIV int receive_data_##ID_UPPER(int fd, int revents, void *cb_data) { \
- struct DMM_DRIVER##_info info; \
- return receive_data(fd, revents, ID_UPPER, &info, cb_data); }
-
-/* Driver-specific receive_data() wrappers */
-RECEIVE_DATA(BBCGM_M2110, metex14) /* metex14_info used as a dummy. */
-RECEIVE_DATA(DIGITEK_DT4000ZC, fs9721)
-RECEIVE_DATA(TEKPOWER_TP4000ZC, fs9721)
-RECEIVE_DATA(METEX_ME31, metex14)
-RECEIVE_DATA(PEAKTECH_3410, metex14)
-RECEIVE_DATA(MASTECH_MAS345, metex14)
-RECEIVE_DATA(VA_VA18B, fs9721)
-RECEIVE_DATA(VA_VA40B, fs9721)
-RECEIVE_DATA(METEX_M3640D, metex14)
-RECEIVE_DATA(METEX_M4650CR, metex14)
-RECEIVE_DATA(PEAKTECH_4370, metex14)
-RECEIVE_DATA(PCE_PCE_DM32, fs9721)
-RECEIVE_DATA(RADIOSHACK_22_168, metex14)
-RECEIVE_DATA(RADIOSHACK_22_805, metex14)
-RECEIVE_DATA(RADIOSHACK_22_812, rs9lcd)
-RECEIVE_DATA(TECPEL_DMM_8061_SER, fs9721)
-RECEIVE_DATA(VOLTCRAFT_M3650CR, metex14)
-RECEIVE_DATA(VOLTCRAFT_M3650D, metex14)
-RECEIVE_DATA(VOLTCRAFT_M4650CR, metex14)
-RECEIVE_DATA(VOLTCRAFT_ME42, metex14)
-RECEIVE_DATA(VOLTCRAFT_VC820_SER, fs9721)
-RECEIVE_DATA(VOLTCRAFT_VC830_SER, fs9922)
-RECEIVE_DATA(VOLTCRAFT_VC840_SER, fs9721)
-RECEIVE_DATA(UNI_T_UT60A_SER, fs9721)
-RECEIVE_DATA(UNI_T_UT60E_SER, fs9721)
-RECEIVE_DATA(UNI_T_UT60G_SER, es519xx)
-RECEIVE_DATA(UNI_T_UT61B_SER, fs9922)
-RECEIVE_DATA(UNI_T_UT61C_SER, fs9922)
-RECEIVE_DATA(UNI_T_UT61D_SER, fs9922)
-RECEIVE_DATA(UNI_T_UT61E_SER, es519xx)
-RECEIVE_DATA(ISO_TECH_IDM103N, es519xx)
-RECEIVE_DATA(TENMA_72_7745_SER, fs9721)
-RECEIVE_DATA(TENMA_72_7750_SER, es519xx)