X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fserial-dmm%2Fprotocol.c;h=52efecb3526ad566cf2046016657f50138cdddcd;hb=50985c2019b2b5a6ce394589d89ee925b4f5e3a9;hp=b98b698a8f1cb70176b04730d79aa0019fde9ccb;hpb=f0ac4929d3aaa83e32b0be0637ae1f22040ea724;p=libsigrok.git diff --git a/hardware/serial-dmm/protocol.c b/hardware/serial-dmm/protocol.c index b98b698a..52efecb3 100644 --- a/hardware/serial-dmm/protocol.c +++ b/hardware/serial-dmm/protocol.c @@ -1,5 +1,5 @@ /* - * This file is part of the sigrok project. + * This file is part of the libsigrok project. * * Copyright (C) 2012 Alexandru Gagniuc * Copyright (C) 2012 Uwe Hermann @@ -18,11 +18,11 @@ * along with this program. If not, see . */ -#include #include #include #include #include +#include #include "libsigrok.h" #include "libsigrok-internal.h" #include "protocol.h" @@ -49,52 +49,87 @@ SR_PRIV void dmm_details_tp4000zc(struct sr_datafeed_analog *analog, void *info) /* User-defined FS9721_LP3 flag 'c2c1_10' means temperature. */ if (info_local->is_c2c1_10) { analog->mq = SR_MQ_TEMPERATURE; - /* No Kelvin or Fahrenheit from the device, just Celsius. */ analog->unit = SR_UNIT_CELSIUS; } } -static void handle_packet(const uint8_t *buf, struct dev_context *devc, +SR_PRIV void dmm_details_va18b(struct sr_datafeed_analog *analog, void *info) +{ + struct fs9721_info *info_local; + + info_local = (struct fs9721_info *)info; + + /* User-defined FS9721_LP3 flag 'c2c1_01' means temperature. */ + if (info_local->is_c2c1_01) { + analog->mq = SR_MQ_TEMPERATURE; + analog->unit = SR_UNIT_CELSIUS; + } +} + +SR_PRIV void dmm_details_pce_dm32(struct sr_datafeed_analog *analog, void *info) +{ + struct fs9721_info *info_local; + + info_local = (struct fs9721_info *)info; + + /* User-defined FS9721_LP3 flag 'c2c1_01' means temperature (F). */ + if (info_local->is_c2c1_01) { + analog->mq = SR_MQ_TEMPERATURE; + analog->unit = SR_UNIT_FAHRENHEIT; + } + + /* User-defined FS9721_LP3 flag 'c2c1_10' means temperature (C). */ + if (info_local->is_c2c1_10) { + analog->mq = SR_MQ_TEMPERATURE; + analog->unit = SR_UNIT_CELSIUS; + } +} + +static void handle_packet(const uint8_t *buf, struct sr_dev_inst *sdi, int dmm, void *info) { float floatval; struct sr_datafeed_packet packet; - struct sr_datafeed_analog *analog; + struct sr_datafeed_analog analog; + struct dev_context *devc; log_dmm_packet(buf); + devc = sdi->priv; - if (!(analog = g_try_malloc0(sizeof(struct sr_datafeed_analog)))) { - sr_err("Analog packet malloc failed."); - return; - } + memset(&analog, 0, sizeof(struct sr_datafeed_analog)); - analog->num_samples = 1; - analog->mq = -1; + analog.probes = sdi->probes; + analog.num_samples = 1; + analog.mq = -1; - dmms[dmm].packet_parse(buf, &floatval, analog, info); - analog->data = &floatval; + dmms[dmm].packet_parse(buf, &floatval, &analog, info); + analog.data = &floatval; + /* If this DMM needs additional handling, call the resp. function. */ if (dmms[dmm].dmm_details) - dmms[dmm].dmm_details(analog, info); + dmms[dmm].dmm_details(&analog, info); - if (analog->mq != -1) { + if (analog.mq != -1) { /* Got a measurement. */ packet.type = SR_DF_ANALOG; - packet.payload = analog; + packet.payload = &analog; sr_session_send(devc->cb_data, &packet); devc->num_samples++; } - - g_free(analog); } -static void handle_new_data(struct dev_context *devc, int dmm, void *info) +static void handle_new_data(struct sr_dev_inst *sdi, int dmm, void *info) { + struct dev_context *devc; int len, i, offset = 0; + struct sr_serial_dev_inst *serial; + + 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(devc->serial, devc->buf + devc->buflen, len); + len = serial_read(serial, devc->buf + devc->buflen, len); if (len < 1) { sr_err("Serial port read error: %d.", len); return; @@ -104,7 +139,7 @@ static void handle_new_data(struct dev_context *devc, int dmm, void *info) /* 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, devc, dmm, info); + handle_packet(devc->buf + offset, sdi, dmm, info); offset += dmms[dmm].packet_size; } else { offset++; @@ -121,6 +156,8 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data) { struct sr_dev_inst *sdi; struct dev_context *devc; + struct sr_serial_dev_inst *serial; + int64_t time; int ret; (void)fd; @@ -131,13 +168,15 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data) if (!(devc = sdi->priv)) return TRUE; + serial = sdi->conn; + if (revents == G_IO_IN) { /* Serial data arrived. */ - handle_new_data(devc, dmm, info); + handle_new_data(sdi, dmm, info); } else { /* Timeout, send another packet request (if DMM needs it). */ if (dmms[dmm].packet_request) { - ret = dmms[dmm].packet_request(devc->serial); + ret = dmms[dmm].packet_request(serial); if (ret < 0) { sr_err("Failed to request packet: %d.", ret); return FALSE; @@ -145,39 +184,42 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data) } } - if (devc->num_samples >= devc->limit_samples) { - sr_info("Requested number of samples reached, stopping."); + 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; } - return TRUE; -} - -SR_PRIV int digitek_dt4000zc_receive_data(int fd, int revents, void *cb_data) -{ - struct fs9721_info info; - - return receive_data(fd, revents, DIGITEK_DT4000ZC, &info, cb_data); -} - -SR_PRIV int tekpower_tp4000zc_receive_data(int fd, int revents, void *cb_data) -{ - struct fs9721_info info; - - return receive_data(fd, revents, TEKPOWER_TP4000ZC, &info, cb_data); -} - -SR_PRIV int metex_me31_receive_data(int fd, int revents, void *cb_data) -{ - struct metex14_info info; + 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; + } + } - return receive_data(fd, revents, METEX_ME31, &info, cb_data); + return TRUE; } -SR_PRIV int peaktech_3410_receive_data(int fd, int revents, void *cb_data) -{ - struct metex14_info info; - - return receive_data(fd, revents, PEAKTECH_3410, &info, cb_data); -} +#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(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(METEX_M3640D, 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(VOLTCRAFT_VC820_SER, fs9721) +RECEIVE_DATA(VOLTCRAFT_VC840_SER, fs9721) +RECEIVE_DATA(UNI_T_UT61E_SER, es51922)