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libsigrok/hardware/uni-t-dmm/api.c

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <string.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
#define UNI_T_UT_D04_NEW "1a86.e008"
static const int32_t hwopts[] = {
SR_CONF_CONN,
};
static const int32_t hwcaps[] = {
SR_CONF_MULTIMETER,
SR_CONF_LIMIT_SAMPLES,
SR_CONF_LIMIT_MSEC,
SR_CONF_CONTINUOUS,
};
SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;
SR_PRIV struct dmm_info udmms[] = {
{
"Tecpel", "DMM-8061", 2400,
FS9721_PACKET_SIZE,
sr_fs9721_packet_valid, sr_fs9721_parse,
sr_fs9721_00_temp_c,
&tecpel_dmm_8061_driver_info, receive_data_TECPEL_DMM_8061,
},
{
"UNI-T", "UT60A", 2400,
FS9721_PACKET_SIZE,
sr_fs9721_packet_valid, sr_fs9721_parse,
NULL,
&uni_t_ut60a_driver_info, receive_data_UNI_T_UT60A,
},
{
"UNI-T", "UT60E", 2400,
FS9721_PACKET_SIZE,
sr_fs9721_packet_valid, sr_fs9721_parse,
sr_fs9721_00_temp_c,
&uni_t_ut60e_driver_info, receive_data_UNI_T_UT60E,
},
{
"UNI-T", "UT61D", 2400,
FS9922_PACKET_SIZE,
sr_fs9922_packet_valid, sr_fs9922_parse,
NULL,
&uni_t_ut61d_driver_info, receive_data_UNI_T_UT61D,
},
{
/*
* Important: The actual baudrate of the Cyrustek ES51922 chip
* used in this DMM is 19230. However, the WCH CH9325 chip
* (UART to USB/HID) used in (some versions of) the UNI-T
* UT-D04 cable doesn't support 19230 baud. It only supports
* 19200, and setting an unsupported baudrate will result in
* the default of 2400 being used (which will not work with
* this DMM, of course).
*/
"UNI-T", "UT61E", 19200,
ES51922_PACKET_SIZE,
sr_es51922_packet_valid, sr_es51922_parse,
NULL,
&uni_t_ut61e_driver_info, receive_data_UNI_T_UT61E,
},
{
"Voltcraft", "VC-820", 2400,
FS9721_PACKET_SIZE,
sr_fs9721_packet_valid, sr_fs9721_parse,
NULL,
&voltcraft_vc820_driver_info, receive_data_VOLTCRAFT_VC820,
},
{
/*
* Note: The VC830 doesn't set the 'volt' and 'diode' bits of
* the FS9922 protocol. Instead, it only sets the user-defined
* bit "z1" to indicate "diode mode" and "voltage".
*/
"Voltcraft", "VC-830", 2400,
FS9922_PACKET_SIZE,
sr_fs9922_packet_valid, sr_fs9922_parse,
&sr_fs9922_z1_diode,
&voltcraft_vc830_driver_info, receive_data_VOLTCRAFT_VC830,
},
{
"Voltcraft", "VC-840", 2400,
FS9721_PACKET_SIZE,
sr_fs9721_packet_valid, sr_fs9721_parse,
sr_fs9721_00_temp_c,
&voltcraft_vc840_driver_info, receive_data_VOLTCRAFT_VC840,
},
{
"Tenma", "72-7745", 2400,
FS9721_PACKET_SIZE,
sr_fs9721_packet_valid, sr_fs9721_parse,
sr_fs9721_00_temp_c,
&tenma_72_7745_driver_info,
/* This is a basic rebadge of the UT60E. */
receive_data_UNI_T_UT60E,
},
};
static int dev_clear(int dmm)
{
return std_dev_clear(udmms[dmm].di, NULL);
}
static int init(struct sr_context *sr_ctx, int dmm)
{
sr_dbg("Selected '%s' subdriver.", udmms[dmm].di->name);
return std_init(sr_ctx, udmms[dmm].di, LOG_PREFIX);
}
static GSList *scan(GSList *options, int dmm)
{
GSList *usb_devices, *devices, *l;
struct sr_dev_inst *sdi;
struct dev_context *devc;
struct drv_context *drvc;
struct sr_usb_dev_inst *usb;
struct sr_config *src;
struct sr_probe *probe;
const char *conn;
drvc = udmms[dmm].di->priv;
conn = NULL;
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = g_variant_get_string(src->data, NULL);
break;
}
}
if (!conn)
return NULL;
devices = NULL;
if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
g_slist_free_full(usb_devices, g_free);
return NULL;
}
for (l = usb_devices; l; l = l->next) {
usb = l->data;
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
sr_err("Device context malloc failed.");
return NULL;
}
devc->first_run = TRUE;
if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
udmms[dmm].vendor, udmms[dmm].device, NULL))) {
sr_err("sr_dev_inst_new returned NULL.");
return NULL;
}
sdi->priv = devc;
sdi->driver = udmms[dmm].di;
if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
return NULL;
sdi->probes = g_slist_append(sdi->probes, probe);
sdi->inst_type = SR_INST_USB;
sdi->conn = usb;
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
}
return devices;
}
static GSList *dev_list(int dmm)
{
return ((struct drv_context *)(udmms[dmm].di->priv))->instances;
}
static int dev_open(struct sr_dev_inst *sdi, int dmm)
{
struct drv_context *drvc;
struct sr_usb_dev_inst *usb;
int ret;
drvc = udmms[dmm].di->priv;
usb = sdi->conn;
if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
sdi->status = SR_ST_ACTIVE;
return ret;
}
static int dev_close(struct sr_dev_inst *sdi)
{
(void)sdi;
/* TODO */
sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
static int cleanup(int dmm)
{
return dev_clear(dmm);
}
static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
{
struct dev_context *devc;
(void)probe_group;
devc = sdi->priv;
switch (id) {
case SR_CONF_LIMIT_MSEC:
if (g_variant_get_uint64(data) == 0) {
sr_err("Time limit cannot be 0.");
return SR_ERR;
}
devc->limit_msec = g_variant_get_uint64(data);
sr_dbg("Setting time limit to %" PRIu64 "ms.",
devc->limit_msec);
break;
case SR_CONF_LIMIT_SAMPLES:
if (g_variant_get_uint64(data) == 0) {
sr_err("Sample limit cannot be 0.");
return SR_ERR;
}
devc->limit_samples = g_variant_get_uint64(data);
sr_dbg("Setting sample limit to %" PRIu64 ".",
devc->limit_samples);
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
{
(void)sdi;
(void)probe_group;
switch (key) {
case SR_CONF_SCAN_OPTIONS:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
break;
case SR_CONF_DEVICE_OPTIONS:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data, int dmm)
{
struct dev_context *devc;
devc = sdi->priv;
devc->cb_data = cb_data;
devc->starttime = g_get_monotonic_time();
/* Send header packet to the session bus. */
std_session_send_df_header(cb_data, LOG_PREFIX);
sr_source_add(0, 0, 10 /* poll_timeout */,
udmms[dmm].receive_data, (void *)sdi);
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
struct sr_datafeed_packet packet;
(void)sdi;
sr_dbg("Stopping acquisition.");
/* Send end packet to the session bus. */
sr_dbg("Sending SR_DF_END.");
packet.type = SR_DF_END;
sr_session_send(cb_data, &packet);
/* TODO? */
sr_source_remove(0);
return SR_OK;
}
/* Driver-specific API function wrappers */
#define HW_INIT(X) \
static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
#define HW_CLEANUP(X) \
static int cleanup_##X(void) { return cleanup(X); }
#define HW_SCAN(X) \
static GSList *scan_##X(GSList *options) { return scan(options, X); }
#define HW_DEV_LIST(X) \
static GSList *dev_list_##X(void) { return dev_list(X); }
#define HW_DEV_CLEAR(X) \
static int dev_clear_##X(void) { return dev_clear(X); }
#define HW_DEV_ACQUISITION_START(X) \
static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
#define HW_DEV_OPEN(X) \
static int dev_open_##X(struct sr_dev_inst *sdi) { return dev_open(sdi, X); }
/* Driver structs and API function wrappers */
#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
HW_INIT(ID_UPPER) \
HW_CLEANUP(ID_UPPER) \
HW_SCAN(ID_UPPER) \
HW_DEV_LIST(ID_UPPER) \
HW_DEV_CLEAR(ID_UPPER) \
HW_DEV_ACQUISITION_START(ID_UPPER) \
HW_DEV_OPEN(ID_UPPER) \
SR_PRIV struct sr_dev_driver ID##_driver_info = { \
.name = NAME, \
.longname = LONGNAME, \
.api_version = 1, \
.init = init_##ID_UPPER, \
.cleanup = cleanup_##ID_UPPER, \
.scan = scan_##ID_UPPER, \
.dev_list = dev_list_##ID_UPPER, \
.dev_clear = dev_clear_##ID_UPPER, \
.config_get = NULL, \
.config_set = config_set, \
.config_list = config_list, \
.dev_open = dev_open_##ID_UPPER, \
.dev_close = dev_close, \
.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
.dev_acquisition_stop = dev_acquisition_stop, \
.priv = NULL, \
};
DRV(tecpel_dmm_8061, TECPEL_DMM_8061, "tecpel-dmm-8061", "Tecpel DMM-8061")
DRV(uni_t_ut60a, UNI_T_UT60A, "uni-t-ut60a", "UNI-T UT60A")
DRV(uni_t_ut60e, UNI_T_UT60E, "uni-t-ut60e", "UNI-T UT60E")
DRV(uni_t_ut61d, UNI_T_UT61D, "uni-t-ut61d", "UNI-T UT61D")
DRV(uni_t_ut61e, UNI_T_UT61E, "uni-t-ut61e", "UNI-T UT61E")
DRV(voltcraft_vc820, VOLTCRAFT_VC820, "voltcraft-vc820", "Voltcraft VC-820")
DRV(voltcraft_vc830, VOLTCRAFT_VC830, "voltcraft-vc830", "Voltcraft VC-830")
DRV(voltcraft_vc840, VOLTCRAFT_VC840, "voltcraft-vc840", "Voltcraft VC-840")
DRV(tenma_72_7745, TENMA_72_7745, "tenma-72-7745", "Tenma 72-7745")
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