X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=hardware%2Fserial-dmm%2Fprotocol.c;h=0b2472fbb70401096073d0b24399fc07e0b633d7;hb=ad9dbc1cdb4818954ee2954787feefc896b4c5c4;hp=3d1b2d562fa0d503cff54deb2646d7e02d5d14a5;hpb=d5ce233fe16a68e6522538c226a91e63628521dd;p=libsigrok.git diff --git a/hardware/serial-dmm/protocol.c b/hardware/serial-dmm/protocol.c index 3d1b2d56..0b2472fb 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" @@ -35,98 +35,85 @@ static void log_dmm_packet(const uint8_t *buf) buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]); } -SR_PRIV void dmm_details_dt4000zc(struct sr_datafeed_analog *analog, void *info) +static void handle_packet(const uint8_t *buf, struct sr_dev_inst *sdi, + int dmm, void *info) { - dmm_details_tp4000zc(analog, info); /* Same as TP4000ZC. */ -} + float floatval; + struct sr_datafeed_packet packet; + struct sr_datafeed_analog analog; + struct dev_context *devc; -SR_PRIV void dmm_details_tp4000zc(struct sr_datafeed_analog *analog, void *info) -{ - struct fs9721_info *info_local; + log_dmm_packet(buf); + devc = sdi->priv; - info_local = (struct fs9721_info *)info; + memset(&analog, 0, sizeof(struct sr_datafeed_analog)); - /* User-defined FS9721_LP3 flag 'c2c1_10' means temperature. */ - if (info_local->is_c2c1_10) { - analog->mq = SR_MQ_TEMPERATURE; - analog->unit = SR_UNIT_CELSIUS; - } -} + analog.channels = sdi->channels; + analog.num_samples = 1; + analog.mq = -1; -SR_PRIV void dmm_details_va18b(struct sr_datafeed_analog *analog, void *info) -{ - struct fs9721_info *info_local; + dmms[dmm].packet_parse(buf, &floatval, &analog, info); + analog.data = &floatval; - info_local = (struct fs9721_info *)info; + /* If this DMM needs additional handling, call the resp. function. */ + if (dmms[dmm].dmm_details) + dmms[dmm].dmm_details(&analog, 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; + 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++; } } -SR_PRIV void dmm_details_pce_dm32(struct sr_datafeed_analog *analog, void *info) +/** Request packet, if required. */ +SR_PRIV int req_packet(struct sr_dev_inst *sdi, int dmm) { - struct fs9721_info *info_local; + struct dev_context *devc; + struct sr_serial_dev_inst *serial; + int ret; - info_local = (struct fs9721_info *)info; + if (!dmms[dmm].packet_request) + return SR_OK; - /* 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; - } + devc = sdi->priv; + serial = sdi->conn; - /* 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; + if (devc->req_next_at && (devc->req_next_at > g_get_monotonic_time())) { + sr_spew("Not requesting new packet yet, %" PRIi64 " ms left.", + ((devc->req_next_at - g_get_monotonic_time()) / 1000)); + return SR_OK; } -} - -static void handle_packet(const uint8_t *buf, struct dev_context *devc, - int dmm, void *info) -{ - float floatval; - struct sr_datafeed_packet packet; - struct sr_datafeed_analog *analog; - log_dmm_packet(buf); - - if (!(analog = g_try_malloc0(sizeof(struct sr_datafeed_analog)))) { - sr_err("Analog packet malloc failed."); - return; + ret = dmms[dmm].packet_request(serial); + if (ret < 0) { + sr_err("Failed to request packet: %d.", ret); + return ret; } - analog->num_samples = 1; - analog->mq = -1; - - dmms[dmm].packet_parse(buf, &floatval, analog, info); - analog->data = &floatval; - - if (dmms[dmm].dmm_details) - dmms[dmm].dmm_details(analog, info); - - 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 (dmms[dmm].req_timeout_ms) + devc->req_next_at = g_get_monotonic_time() + (dmms[dmm].req_timeout_ms * 1000); - g_free(analog); + return SR_OK; } -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); - if (len < 1) { + len = serial_read(serial, devc->buf + devc->buflen, len); + if (len == 0) + return; /* No new bytes, nothing to do. */ + if (len < 0) { sr_err("Serial port read error: %d.", len); return; } @@ -135,8 +122,16 @@ 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; + + /* Request next packet, if required. */ + if (!dmms[dmm].packet_request) + break; + if (dmms[dmm].req_timeout_ms || dmms[dmm].req_delay_ms) + devc->req_next_at = g_get_monotonic_time() + + dmms[dmm].req_delay_ms * 1000; + req_packet(sdi, dmm); } else { offset++; } @@ -152,7 +147,7 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data) { struct sr_dev_inst *sdi; struct dev_context *devc; - int ret; + int64_t time; (void)fd; @@ -164,83 +159,67 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data) 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); - if (ret < 0) { - sr_err("Failed to request packet: %d.", ret); - return FALSE; - } - } + /* Timeout; send another packet request if DMM needs it. */ + if (dmms[dmm].packet_request && (req_packet(sdi, dmm) < 0)) + return FALSE; } - 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; - return receive_data(fd, revents, METEX_ME31, &info, cb_data); -} - -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); -} - -SR_PRIV int mastech_mas345_receive_data(int fd, int revents, void *cb_data) -{ - struct metex14_info info; - return receive_data(fd, revents, MASTECH_MAS345, &info, cb_data); -} - -SR_PRIV int va_va18b_receive_data(int fd, int revents, void *cb_data) -{ - struct fs9721_info info; - return receive_data(fd, revents, VA_VA18B, &info, cb_data); -} - -SR_PRIV int metex_m3640d_receive_data(int fd, int revents, void *cb_data) -{ - struct metex14_info info; - return receive_data(fd, revents, METEX_M3640D, &info, cb_data); -} - -SR_PRIV int peaktech_4370_receive_data(int fd, int revents, void *cb_data) -{ - struct metex14_info info; - return receive_data(fd, revents, PEAKTECH_4370, &info, cb_data); -} + 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; + } + } -SR_PRIV int pce_pce_dm32_receive_data(int fd, int revents, void *cb_data) -{ - struct fs9721_info info; - return receive_data(fd, revents, PCE_PCE_DM32, &info, cb_data); + return TRUE; } -SR_PRIV int radioshack_22_168_receive_data(int fd, int revents, void *cb_data) -{ - struct metex14_info info; - return receive_data(fd, revents, RADIOSHACK_22_168, &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(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)