83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
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/*
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* This file is part of the sigrok project.
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*
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* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GENERICDMM_H_
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#define GENERICDMM_H_
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/* SR_HWCAP_CONN takes one of these: */
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#define DMM_CONN_USB_VIDPID "^([0--9a-z]{1,4}):([0--9a-z]{1,4})$"
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#define DMM_CONN_USB_BUSADDR "^(\\d+)\\.(\\d+)$"
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#define DMM_CONN_SERIALPORT "^([a-z0-9/\\-_]+)$"
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/* SR_HWCAP_SERIALCOMM like 2400/8n1 */
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#define DMM_CONN_SERIALCOMM "^(\\d+)/(\\d)([neo])(\\d)$"
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enum {
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DMM_TRANSPORT_SERIAL,
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DMM_TRANSPORT_USBHID,
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};
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struct dev_profile {
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char *modelid;
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char *vendor;
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char *model;
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struct dmmchip *chip;
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/* Only use when the VID:PID is really specific to a DMM. */
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uint16_t vid;
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uint16_t pid;
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int transport;
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};
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struct context {
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struct dev_profile *profile;
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uint64_t limit_samples;
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uint64_t limit_msec;
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/* Opaque pointer passed in by the frontend. */
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void *cb_data;
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/* Only used for USB-connected devices. */
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struct sr_usb_dev_inst *usb;
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/* Only used for serial-connected devices. */
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struct sr_serial_dev_inst *serial;
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int serial_speed;
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int serial_databits;
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int serial_parity;
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int serial_stopbits;
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/* Runtime. */
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uint64_t num_samples;
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/* DMM chip-specific data, if needed. */
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void *priv;
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};
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struct dmmchip {
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/* Optional, called once before measurement starts. */
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int (*init) (struct context *ctx);
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/* Called whenever a chunk of data arrives. */
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int (*data) (struct context *ctx, unsigned char *data);
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};
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#endif /* GENERICDMM_H_ */
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