X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Funi-t-dmm%2Fapi.c;h=972a8e9ffa68cb9c921d0e24f8760f59547664a2;hb=HEAD;hp=634af3ccce98d6b094d027920cae467545d22fbb;hpb=79081ec80c79801c439a1a3756cf5426af0739b8;p=libsigrok.git diff --git a/hardware/uni-t-dmm/api.c b/hardware/uni-t-dmm/api.c deleted file mode 100644 index 634af3cc..00000000 --- a/hardware/uni-t-dmm/api.c +++ /dev/null @@ -1,372 +0,0 @@ -/* - * This file is part of the sigrok project. - * - * Copyright (C) 2012 Uwe Hermann - * - * 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 -#include -#include "libsigrok.h" -#include "libsigrok-internal.h" -#include "protocol.h" - -static const int hwcaps[] = { - SR_HWCAP_MULTIMETER, - SR_HWCAP_LIMIT_SAMPLES, - SR_HWCAP_LIMIT_MSEC, - SR_HWCAP_CONTINUOUS, - 0, -}; - -static const char *probe_names[] = { - "Probe", - NULL, -}; - -SR_PRIV struct sr_dev_driver uni_t_dmm_driver_info; -static struct sr_dev_driver *di = &uni_t_dmm_driver_info; - -static int open_usb(struct sr_dev_inst *sdi) -{ - libusb_device **devlist; - struct libusb_device_descriptor des; - struct dev_context *devc; - int ret, tmp, cnt, i; - - /* TODO: Use common code later, refactor. */ - - devc = sdi->priv; - - if ((cnt = libusb_get_device_list(NULL, &devlist)) < 0) { - sr_err("Error getting USB device list: %d.", cnt); - return SR_ERR; - } - - ret = SR_ERR; - for (i = 0; i < cnt; i++) { - if ((tmp = libusb_get_device_descriptor(devlist[i], &des))) { - sr_err("Failed to get device descriptor: %d.", tmp); - continue; - } - - if (libusb_get_bus_number(devlist[i]) != devc->usb->bus - || libusb_get_device_address(devlist[i]) != devc->usb->address) - continue; - - if ((tmp = libusb_open(devlist[i], &devc->usb->devhdl))) { - sr_err("Failed to open device: %d.", tmp); - break; - } - - sr_info("Opened USB device on %d.%d.", - devc->usb->bus, devc->usb->address); - ret = SR_OK; - break; - } - libusb_free_device_list(devlist, 1); - - return ret; -} - -static GSList *connect_usb(const char *conn) -{ - struct sr_dev_inst *sdi; - struct drv_context *drvc; - struct dev_context *devc; - struct sr_probe *probe; - libusb_device **devlist; - struct libusb_device_descriptor des; - GSList *devices; - int vid, pid, devcnt, err, i; - - (void)conn; - - /* TODO: Use common code later, refactor. */ - - drvc = di->priv; - - /* Hardcoded for now. */ - vid = UT_D04_CABLE_USB_VID; - pid = UT_D04_CABLE_USB_DID; - - devices = NULL; - libusb_get_device_list(NULL, &devlist); - for (i = 0; devlist[i]; i++) { - if ((err = libusb_get_device_descriptor(devlist[i], &des))) { - sr_err("Failed to get device descriptor: %d", err); - continue; - } - - if (des.idVendor != vid || des.idProduct != pid) - continue; - - if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { - sr_err("Device context malloc failed."); - return NULL; - } - - devcnt = g_slist_length(drvc->instances); - if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, - "UNI-T DMM", NULL, NULL))) { - sr_err("sr_dev_inst_new returned NULL."); - return NULL; - } - sdi->priv = devc; - if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) - return NULL; - sdi->probes = g_slist_append(sdi->probes, probe); - devc->usb = sr_usb_dev_inst_new( - libusb_get_bus_number(devlist[i]), - libusb_get_device_address(devlist[i]), NULL); - devices = g_slist_append(devices, sdi); - } - libusb_free_device_list(devlist, 1); - - return devices; -} - -static int clear_instances(void) -{ - /* TODO: Use common code later. */ - - return SR_OK; -} - -static int hw_init(void) -{ - int ret; - struct drv_context *drvc; - - if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { - sr_err("Driver context malloc failed."); - return SR_ERR_MALLOC; - } - - if ((ret = libusb_init(NULL)) < 0) { - sr_err("Failed to initialize libusb: %s.", - libusb_error_name(ret)); - return SR_ERR; - } - - di->priv = drvc; - - return SR_OK; -} - -static GSList *hw_scan(GSList *options) -{ - GSList *l, *devices; - struct sr_dev_inst *sdi; - struct drv_context *drvc; - - (void)options; - - drvc = di->priv; - - if (!(devices = connect_usb(NULL))) - return NULL; - - for (l = devices; l; l = l->next) { - sdi = l->data; - sdi->driver = di; - drvc->instances = g_slist_append(drvc->instances, l->data); - } - - return devices; -} - -static GSList *hw_dev_list(void) -{ - struct drv_context *drvc; - - drvc = di->priv; - - return drvc->instances; -} - -static int hw_dev_open(struct sr_dev_inst *sdi) -{ - return open_usb(sdi); -} - -static int hw_dev_close(struct sr_dev_inst *sdi) -{ - (void)sdi; - - /* TODO */ - - return SR_OK; -} - -static int hw_cleanup(void) -{ - clear_instances(); - - // libusb_exit(NULL); - - return SR_OK; -} - -static int hw_info_get(int info_id, const void **data, - const struct sr_dev_inst *sdi) -{ - (void)sdi; - - sr_spew("Backend requested info_id %d.", info_id); - - switch (info_id) { - case SR_DI_HWCAPS: - *data = hwcaps; - sr_spew("%s: Returning hwcaps.", __func__); - break; - case SR_DI_NUM_PROBES: - *data = GINT_TO_POINTER(1); - sr_spew("%s: Returning number of probes.", __func__); - break; - case SR_DI_PROBE_NAMES: - *data = probe_names; - sr_spew("%s: Returning probe names.", __func__); - break; - case SR_DI_SAMPLERATES: - /* TODO: Get rid of this. */ - *data = NULL; - sr_spew("%s: Returning samplerates.", __func__); - return SR_ERR_ARG; - break; - case SR_DI_CUR_SAMPLERATE: - /* TODO: Get rid of this. */ - *data = NULL; - sr_spew("%s: Returning current samplerate.", __func__); - return SR_ERR_ARG; - break; - default: - sr_err("%s: Unknown info_id %d.", __func__, info_id); - return SR_ERR_ARG; - break; - } - - return SR_OK; -} - -static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, - const void *value) -{ - struct dev_context *devc; - - devc = sdi->priv; - - switch (hwcap) { - case SR_HWCAP_LIMIT_MSEC: - /* TODO: Not yet implemented. */ - if (*(const uint64_t *)value == 0) { - sr_err("Time limit cannot be 0."); - return SR_ERR; - } - devc->limit_msec = *(const uint64_t *)value; - sr_dbg("Setting time limit to %" PRIu64 "ms.", - devc->limit_msec); - break; - case SR_HWCAP_LIMIT_SAMPLES: - if (*(const uint64_t *)value == 0) { - sr_err("Sample limit cannot be 0."); - return SR_ERR; - } - devc->limit_samples = *(const uint64_t *)value; - sr_dbg("Setting sample limit to %" PRIu64 ".", - devc->limit_samples); - break; - default: - sr_err("Unknown capability: %d.", hwcap); - return SR_ERR; - break; - } - - return SR_OK; -} - -static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, - void *cb_data) -{ - struct sr_datafeed_packet packet; - struct sr_datafeed_header header; - struct sr_datafeed_meta_analog meta; - struct dev_context *devc; - - devc = sdi->priv; - - sr_dbg("Starting acquisition."); - - devc->cb_data = cb_data; - - /* Send header packet to the session bus. */ - sr_dbg("Sending SR_DF_HEADER."); - packet.type = SR_DF_HEADER; - packet.payload = (uint8_t *)&header; - header.feed_version = 1; - gettimeofday(&header.starttime, NULL); - sr_session_send(devc->cb_data, &packet); - - /* Send metadata about the SR_DF_ANALOG packets to come. */ - sr_dbg("Sending SR_DF_META_ANALOG."); - packet.type = SR_DF_META_ANALOG; - packet.payload = &meta; - meta.num_probes = 1; - sr_session_send(devc->cb_data, &packet); - - sr_source_add(0, 0, 10 /* poll_timeout */, - uni_t_dmm_receive_data, (void *)sdi); - - return SR_OK; -} - -static int hw_dev_acquisition_stop(const 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; -} - -SR_PRIV struct sr_dev_driver uni_t_dmm_driver_info = { - .name = "uni-t-dmm", - .longname = "UNI-T DMM series", - .api_version = 1, - .init = hw_init, - .cleanup = hw_cleanup, - .scan = hw_scan, - .dev_list = hw_dev_list, - .dev_clear = clear_instances, - .dev_open = hw_dev_open, - .dev_close = hw_dev_close, - .info_get = hw_info_get, - .dev_config_set = hw_dev_config_set, - .dev_acquisition_start = hw_dev_acquisition_start, - .dev_acquisition_stop = hw_dev_acquisition_stop, - .priv = NULL, -};