libsigrok/hardware/genericdmm/genericdmm.h

83 lines
2.1 KiB
C

/*
* This file is part of the sigrok project.
*
* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#ifndef GENERICDMM_H_
#define GENERICDMM_H_
/* SR_HWCAP_CONN takes one of these: */
#define DMM_CONN_USB_VIDPID "^([0--9a-z]{1,4}):([0--9a-z]{1,4})$"
#define DMM_CONN_USB_BUSADDR "^(\\d+)\\.(\\d+)$"
#define DMM_CONN_SERIALPORT "^([a-z0-9/\\-_]+)$"
/* SR_HWCAP_SERIALCOMM like 2400/8n1 */
#define DMM_CONN_SERIALCOMM "^(\\d+)/(\\d)([neo])(\\d)$"
enum {
DMM_TRANSPORT_SERIAL,
DMM_TRANSPORT_USBHID,
};
struct dev_profile {
char *modelid;
char *vendor;
char *model;
struct dmmchip *chip;
/* Only use when the VID:PID is really specific to a DMM. */
uint16_t vid;
uint16_t pid;
int transport;
};
struct context {
struct dev_profile *profile;
uint64_t limit_samples;
uint64_t limit_msec;
/* Opaque pointer passed in by the frontend. */
void *cb_data;
/* Only used for USB-connected devices. */
struct sr_usb_dev_inst *usb;
/* Only used for serial-connected devices. */
struct sr_serial_dev_inst *serial;
int serial_speed;
int serial_databits;
int serial_parity;
int serial_stopbits;
/* Runtime. */
uint64_t num_samples;
/* DMM chip-specific data, if needed. */
void *priv;
};
struct dmmchip {
/* Optional, called once before measurement starts. */
int (*init) (struct context *ctx);
/* Called whenever a chunk of data arrives. */
int (*data) (struct context *ctx, unsigned char *data);
};
#endif /* GENERICDMM_H_ */