+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 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/>.
- */
-
-#include "protocol.h"
-
-#include <string.h>
-
-static const int32_t hwcaps[] = {
- SR_CONF_THERMOMETER,
- SR_CONF_LIMIT_SAMPLES,
- SR_CONF_CONTINUOUS,
- SR_CONF_DATA_SOURCE,
-};
-
-static char *channels[] = {
- "T1",
- "T2",
- "T1-T2",
-};
-
-static const char *data_sources[] = {
- "Live",
- "Memory",
-};
-
-SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
-static struct sr_dev_driver *di = &uni_t_ut32x_driver_info;
-
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_dev_inst *sdi;
- struct sr_channel *ch;
- struct sr_config *src;
- GSList *usb_devices, *devices, *l;
- int i;
- const char *conn;
-
- drvc = di->priv;
- drvc->instances = NULL;
-
- 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))) {
- /* We have a list of sr_usb_dev_inst matching the connection
- * string. Wrap them in sr_dev_inst and we're done. */
- for (l = usb_devices; l; l = l->next) {
- if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR,
- MODEL, NULL)))
- return NULL;
- sdi->driver = di;
- sdi->inst_type = SR_INST_USB;
- sdi->conn = l->data;
- for (i = 0; i < 3; i++) {
- if (!(ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE,
- channels[i]))) {
- sr_dbg("Channel malloc failed.");
- return NULL;
- }
- sdi->channels = g_slist_append(sdi->channels, ch);
- }
-
- if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
- sr_dbg("Device context malloc failed.");
- return NULL;
- }
- sdi->priv = devc;
- devc->limit_samples = 0;
- devc->data_source = DEFAULT_DATA_SOURCE;
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
- }
- g_slist_free(usb_devices);
- } else
- g_slist_free_full(usb_devices, g_free);
-
- return devices;
-}
-
-static GSList *dev_list(void)
-{
- return ((struct drv_context *)(di->priv))->instances;
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct drv_context *drvc;
- struct sr_usb_dev_inst *usb;
- int ret;
-
- if (!(drvc = di->priv)) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
- usb = sdi->conn;
-
- if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
- return SR_ERR;
-
-/*
- * The libusbx 1.0.9 darwin backend is broken: it can report a kernel
- * driver being active, but detaching it always returns an error.
- */
-#if !defined(__APPLE__)
- if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
- if ((ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE)) < 0) {
- sr_err("failed to detach kernel driver: %s",
- libusb_error_name(ret));
- return SR_ERR;
- }
- }
-#endif
-
- if ((ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION))) {
- sr_err("Failed to set configuration: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
-
- if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) {
- sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
- sdi->status = SR_ST_ACTIVE;
-
- return ret;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
-
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
- usb = sdi->conn;
- if (!usb->devhdl)
- /* Nothing to do. */
- return SR_OK;
-
- libusb_release_interface(usb->devhdl, USB_INTERFACE);
- libusb_close(usb->devhdl);
- usb->devhdl = NULL;
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
-}
-
-static int cleanup(void)
-{
- int ret;
- struct drv_context *drvc;
-
- if (!(drvc = di->priv))
- /* Can get called on an unused driver, doesn't matter. */
- return SR_OK;
-
-
- ret = std_dev_clear(di, NULL);
- g_free(drvc);
- di->priv = NULL;
-
- return ret;
-}
-
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
-
- (void)cg;
-
- devc = sdi->priv;
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- *data = g_variant_new_uint64(devc->limit_samples);
- break;
- case SR_CONF_DATA_SOURCE:
- if (devc->data_source == DATA_SOURCE_LIVE)
- *data = g_variant_new_string("Live");
- else
- *data = g_variant_new_string("Memory");
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
- int ret;
- const char *tmp_str;
-
- (void)cg;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
- devc = sdi->priv;
- ret = SR_OK;
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- devc->limit_samples = g_variant_get_uint64(data);
- sr_dbg("Setting sample limit to %" PRIu64 ".",
- devc->limit_samples);
- break;
- case SR_CONF_DATA_SOURCE:
- tmp_str = g_variant_get_string(data, NULL);
- if (!strcmp(tmp_str, "Live"))
- devc->data_source = DATA_SOURCE_LIVE;
- else if (!strcmp(tmp_str, "Memory"))
- devc->data_source = DATA_SOURCE_MEMORY;
- else
- return SR_ERR;
- break;
- default:
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
-
- (void)sdi;
- (void)cg;
-
- switch (key) {
- case SR_CONF_DEVICE_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
- break;
- case SR_CONF_DATA_SOURCE:
- *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- int len, ret;
- unsigned char cmd[2];
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- drvc = di->priv;
- devc = sdi->priv;
- usb = sdi->conn;
-
- devc->cb_data = cb_data;
- devc->num_samples = 0;
- devc->packet_len = 0;
-
- /* Configure serial port parameters on USB-UART interface
- * chip inside the device (just baudrate 2400 actually). */
- cmd[0] = 0x09;
- cmd[1] = 0x60;
- ret = libusb_control_transfer(usb->devhdl, 0x21, 0x09, 0x0300, 0x00,
- cmd, 2, 5);
- if (ret != 2) {
- sr_dbg("Failed to configure CH9325: %s", libusb_error_name(ret));
- return SR_ERR;
- }
-
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
-
- if (!(devc->xfer = libusb_alloc_transfer(0)))
- return SR_ERR;
-
- /* Length of payload to follow. */
- cmd[0] = 0x01;
- if (devc->data_source == DATA_SOURCE_LIVE)
- cmd[1] = CMD_GET_LIVE;
- else
- cmd[1] = CMD_GET_STORED;
-
- ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, cmd, 2, &len, 5);
- if (ret != 0 || len != 2) {
- sr_dbg("Failed to start acquisition: %s", libusb_error_name(ret));
- libusb_free_transfer(devc->xfer);
- return SR_ERR;
- }
-
- libusb_fill_bulk_transfer(devc->xfer, usb->devhdl, EP_IN, devc->buf,
- 8, uni_t_ut32x_receive_transfer, (void *)sdi, 15);
- if (libusb_submit_transfer(devc->xfer) != 0) {
- libusb_free_transfer(devc->xfer);
- return SR_ERR;
- }
-
- usb_source_add(sdi->session, drvc->sr_ctx, 10,
- uni_t_ut32x_handle_events, (void *)sdi);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
-
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- /* Signal USB transfer handler to clean up and stop. */
- sdi->status = SR_ST_STOPPING;
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info = {
- .name = "uni-t-ut32x",
- .longname = "UNI-T UT32x",
- .api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = NULL,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = dev_open,
- .dev_close = dev_close,
- .dev_acquisition_start = dev_acquisition_start,
- .dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
-};
projects / libsigrok.git / blobdiff