X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fmotech-lps-30x%2Fprotocol.c;h=867cbb45197fca719b7c5d553548e9fc19446d81;hb=HEAD;hp=11c1be6d3fca7a39b9fd7c3572b9d7172444582b;hpb=1f7da0c2bbc096cdc5750f47e084ced8c7ce6e48;p=libsigrok.git diff --git a/hardware/motech-lps-30x/protocol.c b/hardware/motech-lps-30x/protocol.c deleted file mode 100644 index 11c1be6d..00000000 --- a/hardware/motech-lps-30x/protocol.c +++ /dev/null @@ -1,240 +0,0 @@ -/* - * This file is part of the libsigrok project. - * - * Copyright (C) 2014 Matthias Heidbrink - * Copyright (C) 2014 Bert Vermeulen (code from atten-pps3xxx) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** @file - * Motech LPS-30x series power supply driver - * @internal - */ - -#include -#include - -#include "protocol.h" - -/** Send data packets for current measurements. */ -static void send_data(struct sr_dev_inst *sdi) -{ - struct dev_context *devc; - struct sr_datafeed_packet packet; - struct sr_datafeed_analog analog; - int i; - float data[MAX_CHANNELS]; - - devc = sdi->priv; - packet.type = SR_DF_ANALOG; - packet.payload = &analog; - analog.channels = sdi->channels; - analog.num_samples = 1; - - analog.mq = SR_MQ_VOLTAGE; - analog.unit = SR_UNIT_VOLT; - analog.mqflags = SR_MQFLAG_DC; - analog.data = data; - for (i = 0; i < devc->model->num_channels; i++) - analog.data[i] = devc->channel_status[i].output_voltage_last; /* Value always 3.3 or 5 for channel 3, if present! */ - sr_session_send(sdi, &packet); - - analog.mq = SR_MQ_CURRENT; - analog.unit = SR_UNIT_AMPERE; - analog.mqflags = 0; - analog.data = data; - for (i = 0; i < devc->model->num_channels; i++) - analog.data[i] = devc->channel_status[i].output_current_last; /* Value always 0 for channel 3, if present! */ - sr_session_send(sdi, &packet); - - devc->num_samples++; -} - -/** Process a complete line (without CR/LF) in buf. */ -static void process_line(struct sr_dev_inst *sdi) -{ - struct dev_context *devc; - struct sr_serial_dev_inst *serial; - double dbl; - int auxint; - - devc = sdi->priv; - serial = sdi->conn; - - switch (devc->acq_req_pending) { - case 0: /* Should not happen... */ - break; - case 1: /* Waiting for data reply to request */ - /* Convert numbers */ - switch (devc->acq_req) { - case AQ_U1: case AQ_U2: case AQ_I1: case AQ_I2: - if (sr_atod(devc->buf, &dbl) != SR_OK) { - sr_err("Failed to convert '%s' to double, errno=%d %s", - devc->buf, errno, strerror(errno)); - dbl = 0.0; - } - break; - case AQ_STATUS: - if (sr_atoi(devc->buf, &auxint) != SR_OK) { - sr_err("Failed to convert '%s' to int, errno=%d %s", - devc->buf, errno, strerror(errno)); - auxint = 0; - } - break; - default: - break; - } - - switch (devc->acq_req) { - case AQ_U1: - devc->channel_status[0].output_voltage_last = dbl; - break; - case AQ_I1: - devc->channel_status[0].output_current_last = dbl; - break; - case AQ_U2: - devc->channel_status[1].output_voltage_last = dbl; - break; - case AQ_I2: - devc->channel_status[1].output_current_last = dbl; - break; - case AQ_STATUS: /* Process status and generate data. */ - if (lps_process_status(sdi, auxint) == SR_OK) { - send_data(sdi); - } - break; - default: - break; - } - - devc->acq_req_pending = 2; - break; - case 2: /* Waiting for OK after request */ - if (strcmp(devc->buf, "OK")) { - sr_err("Unexpected reply while waiting for OK: '%s'", devc->buf); - } - devc->acq_req_pending = 0; - break; - } - - devc->buf[0] = '\0'; - devc->buflen = 0; -} - - -SR_PRIV int motech_lps_30x_receive_data(int fd, int revents, void *cb_data) -{ - struct sr_dev_inst *sdi; - struct dev_context *devc; - struct sr_serial_dev_inst *serial; - int len; - gdouble elapsed_s; - - (void)fd; - - if (!(sdi = cb_data)) - return TRUE; - - if (!(devc = sdi->priv)) - return TRUE; - - serial = sdi->conn; - - if (revents == G_IO_IN) { /* Serial data arrived. */ - while (LINELEN_MAX - devc->buflen - 2 > 0) { - len = serial_read(serial, devc->buf + devc->buflen, 1); - if (len < 1) - break; - - /* Eliminate whitespace at beginning of line. */ - if (g_ascii_isspace(devc->buf[0])) { - devc->buf[0] = '\0'; - devc->buflen = 0; - continue; - } - - devc->buflen += len; - devc->buf[devc->buflen] = '\0'; - - /* If line complete, process msg. */ - if ((devc->buflen > 0) && ((devc->buf[devc->buflen-1] == '\r') || devc->buf[devc->buflen-1] == '\n')) { - devc->buflen--; - devc->buf[devc->buflen] = '\0'; - - sr_spew("Line complete: \"%s\"", devc->buf); - process_line(sdi); - } - } - } - - /* If number of samples or time limit reached, stop acquisition. */ - if (devc->limit_samples && (devc->num_samples >= devc->limit_samples)) - sdi->driver->dev_acquisition_stop(sdi, cb_data); - - if (devc->limit_msec) { - elapsed_s = g_timer_elapsed(devc->elapsed_msec, NULL); - if ((elapsed_s * 1000) >= devc->limit_msec) - sdi->driver->dev_acquisition_stop(sdi, cb_data); - } - - /* Request next packet, if required. */ - if ((sdi->status == SR_ST_ACTIVE) && (devc->acq_running)){ - if (devc->acq_req_pending) { - gint64 elapsed_us = g_get_monotonic_time() - devc->req_sent_at; - if (elapsed_us > (REQ_TIMEOUT_MS * 1000)) { - sr_spew("Request timeout: req=%d t=%lldus", (int)devc->acq_req, elapsed_us); - devc->acq_req_pending = 0; - } - } - if (devc->acq_req_pending == 0) { - switch(devc->acq_req) - { - case AQ_NONE: /* Fall through */ - case AQ_STATUS: - devc->acq_req = AQ_U1; - lps_send_req(serial, "VOUT1"); - break; - case AQ_U1: - devc->acq_req = AQ_I1; - lps_send_req(serial, "IOUT1"); - break; - case AQ_I1: - if (devc->model->num_channels == 1) { - devc->acq_req = AQ_STATUS; - lps_send_req(serial, "STATUS"); - } else { - devc->acq_req = AQ_U2; - lps_send_req(serial, "VOUT2"); - } - break; - case AQ_U2: - devc->acq_req = AQ_I2; - lps_send_req(serial, "IOUT2"); - break; - case AQ_I2: - devc->acq_req = AQ_STATUS; - lps_send_req(serial, "STATUS"); - break; - default: - sr_err("Illegal devc->acq_req=%d", devc->acq_req); - return SR_ERR; - } - devc->req_sent_at = g_get_real_time(); - devc->acq_req_pending = 1; - } - } - - return TRUE; -}