* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <string.h>
+#include <libserialport.h>
#include "protocol.h"
+#define SERIALCOMM "115200/8n1"
+
SR_PRIV struct sr_dev_driver testo_driver_info;
static struct sr_dev_driver *di = &testo_driver_info;
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
+
+static const int32_t scanopts[] = {
+ SR_CONF_CONN,
+};
+
+static const int32_t devopts[] = {
+ SR_CONF_MULTIMETER,
+ SR_CONF_LIMIT_MSEC,
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_CONTINUOUS,
+};
+
+unsigned char TESTO_x35_REQUEST[] = { 0x12, 0, 0, 0, 1, 1, 0x55, 0xd1, 0xb7 };
+struct testo_model models[] = {
+ { "435", 9, TESTO_x35_REQUEST },
+};
static int init(struct sr_context *sr_ctx)
{
static GSList *scan(GSList *options)
{
struct drv_context *drvc;
- GSList *devices;
-
- (void)options;
+ struct dev_context *devc;
+ struct sr_config *src;
+ struct sr_dev_inst *sdi;
+ struct sr_usb_dev_inst *usb;
+ struct libusb_device_descriptor des;
+ libusb_device **devlist;
+ struct libusb_device_handle *hdl;
+ GSList *conn_devices, *devices, *l;
+ int devcnt, ret, i;
+ const char *str;
+ char manufacturer[64], product[64];
devices = NULL;
drvc = di->priv;
drvc->instances = NULL;
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ conn_devices = NULL;
+ for (l = options; l; l = l->next) {
+ src = l->data;
+ if (src->key != SR_CONF_CONN)
+ continue;
+ str = g_variant_get_string(src->data, NULL);
+ conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, str);
+ }
+
+ libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ for (i = 0; devlist[i]; i++) {
+ if (conn_devices) {
+ usb = NULL;
+ for (l = conn_devices; l; l = l->next) {
+ usb = l->data;
+ if (usb->bus == libusb_get_bus_number(devlist[i])
+ && usb->address == libusb_get_device_address(devlist[i]))
+ break;
+ }
+ if (!l)
+ /* This device matched none of the ones that
+ * matched the conn specification. */
+ continue;
+ }
+
+ if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
+ sr_warn("Failed to get device descriptor: %s.",
+ libusb_error_name(ret));
+ continue;
+ }
+
+ if ((ret = libusb_open(devlist[i], &hdl)) < 0)
+ continue;
+
+ manufacturer[0] = product[0] = '\0';
+ if (des.iManufacturer && (ret = libusb_get_string_descriptor_ascii(
+ hdl, des.iManufacturer, (unsigned char *) manufacturer,
+ sizeof(manufacturer))) < 0) {
+ sr_warn("Failed to get manufacturer string descriptor: %s.",
+ libusb_error_name(ret));
+ }
+ if (des.iProduct && (ret = libusb_get_string_descriptor_ascii(
+ hdl, des.iProduct, (unsigned char *) product,
+ sizeof(product))) < 0) {
+ sr_warn("Failed to get product string descriptor: %s.",
+ libusb_error_name(ret));
+ }
+ libusb_close(hdl);
+
+ if (strncmp(manufacturer, "testo", 5))
+ continue;
+
+ /* Hardcode the 435 for now.*/
+ if (strcmp(product, "testo 435/635/735"))
+ continue;
+
+ devcnt = g_slist_length(drvc->instances);
+ sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, "Testo",
+ "435/635/735", NULL);
+ sdi->driver = di;
+ sdi->inst_type = SR_INST_USB;
+ sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
+ libusb_get_device_address(devlist[i]), NULL);
+ devc = g_malloc(sizeof(struct dev_context));
+ devc->model = &models[0];
+ devc->limit_msec = 0;
+ devc->limit_samples = 0;
+ sdi->priv = devc;
+ if (testo_probe_channels(sdi) != SR_OK)
+ continue;
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+ }
+ libusb_free_device_list(devlist, 1);
+ g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
return devices;
}
static int dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct drv_context *drvc = di->priv;
+ struct sr_usb_dev_inst *usb;
+ libusb_device **devlist;
+ int ret, i;
+
+ if (!di->priv) {
+ sr_err("Driver was not initialized.");
+ return SR_ERR;
+ }
- /* TODO: get handle from sdi->conn and open it. */
+ usb = sdi->conn;
+ libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ for (i = 0; devlist[i]; i++) {
+ if (libusb_get_bus_number(devlist[i]) != usb->bus
+ || libusb_get_device_address(devlist[i]) != usb->address)
+ continue;
+ if ((ret = libusb_open(devlist[i], &usb->devhdl))) {
+ sr_err("Failed to open device: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
+ break;
+ }
+ libusb_free_device_list(devlist, 1);
+ if (!devlist[i]) {
+ sr_err("Device not found.");
+ return SR_ERR;
+ }
+ if ((ret = libusb_claim_interface(usb->devhdl, 0))) {
+ sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
sdi->status = SR_ST_ACTIVE;
return SR_OK;
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_usb_dev_inst *usb;
+
+ if (!di->priv) {
+ sr_err("Driver was not initialized.");
+ return SR_ERR;
+ }
- /* TODO: get handle from sdi->conn and close it. */
+ usb = sdi->conn;
+ if (!usb->devhdl)
+ /* Nothing to do. */
+ return SR_OK;
+ libusb_release_interface(usb->devhdl, 0);
+ libusb_close(usb->devhdl);
+ usb->devhdl = NULL;
sdi->status = SR_ST_INACTIVE;
return SR_OK;
static int cleanup(void)
{
- dev_clear();
+ int ret;
+ struct drv_context *drvc;
- /* TODO: free other driver resources, if any. */
+ if (!(drvc = di->priv))
+ return SR_OK;
- return SR_OK;
+ ret = dev_clear();
+ 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)
{
- int ret;
+ struct sr_usb_dev_inst *usb;
+ char str[128];
- (void)sdi;
- (void)data;
(void)cg;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_CONN:
+ if (!sdi || !sdi->conn)
+ return SR_ERR_ARG;
+ usb = sdi->conn;
+ snprintf(str, 128, "%d.%d", usb->bus, usb->address);
+ *data = g_variant_new_string(str);
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ 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;
+ gint64 now;
int ret;
- (void)data;
(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) {
- /* TODO */
+ case SR_CONF_LIMIT_MSEC:
+ devc->limit_msec = g_variant_get_uint64(data);
+ now = g_get_monotonic_time() / 1000;
+ devc->end_time = now + devc->limit_msec;
+ sr_dbg("Setting time limit to %" PRIu64 "ms.",
+ devc->limit_msec);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ sr_dbg("Setting sample limit to %" PRIu64 ".",
+ devc->limit_samples);
+ break;
default:
ret = SR_ERR_NA;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
- int ret;
-
(void)sdi;
- (void)data;
(void)cg;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ scanopts, ARRAY_SIZE(scanopts), sizeof(int32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
+static void receive_data(struct sr_dev_inst *sdi, unsigned char *data, int len)
{
- (void)sdi;
- (void)cb_data;
+ struct dev_context *devc;
+ int packet_size;
+
+ devc = sdi->priv;
+
+ if (devc->reply_size + len > MAX_REPLY_SIZE) {
+ /* Something went very wrong. */
+ sr_dbg("Receive buffer overrun.");
+ devc->reply_size = 0;
+ return;
+ }
+
+ memcpy(devc->reply + devc->reply_size, data, len);
+ devc->reply_size += len;
+ /* Sixth byte contains the length of the packet. */
+ if (devc->reply_size >= 7) {
+ packet_size = 7 + devc->reply[6] * 7 + 2;
+ if (devc->reply_size >= packet_size) {
+ testo_receive_packet(sdi);
+ devc->num_samples++;
+ devc->reply_size = 0;
+ if (devc->limit_samples && devc->num_samples >= devc->limit_samples)
+ dev_acquisition_stop(sdi, devc->cb_data);
+ else
+ testo_request_packet(sdi);
+ }
+ }
+
+}
+
+SR_PRIV void receive_transfer(struct libusb_transfer *transfer)
+{
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ int ret;
+
+ sdi = transfer->user_data;
+ devc = sdi->priv;
+ if (transfer == devc->out_transfer)
+ /* Just the command acknowledgement. */
+ return;
+
+ if (transfer->status == LIBUSB_TRANSFER_NO_DEVICE) {
+ /* USB device was unplugged. */
+ dev_acquisition_stop(sdi, devc->cb_data);
+ } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
+ /* First two bytes in any transfer are FTDI status bytes. */
+ if (transfer->actual_length > 2)
+ receive_data(sdi, transfer->buffer + 2, transfer->actual_length - 2);
+ }
+ /* Anything else is either an error or a timeout, which is fine:
+ * we were just going to send another transfer request anyway. */
+
+ if (sdi->status == SR_ST_ACTIVE) {
+ if ((ret = libusb_submit_transfer(transfer) != 0)) {
+ sr_err("Unable to resubmit transfer: %s.",
+ libusb_error_name(ret));
+ g_free(transfer->buffer);
+ libusb_free_transfer(transfer);
+ dev_acquisition_stop(sdi, devc->cb_data);
+ }
+ } else {
+ /* This was the last transfer we're going to receive, so
+ * clean up now. */
+ g_free(transfer->buffer);
+ libusb_free_transfer(transfer);
+ }
+}
+
+static int handle_events(int fd, int revents, void *cb_data)
+{
+ struct dev_context *devc;
+ struct drv_context *drvc = di->priv;
+ struct sr_datafeed_packet packet;
+ struct sr_dev_inst *sdi;
+ struct timeval tv;
+ gint64 now;
+
+ (void)fd;
+ (void)revents;
+
+ sdi = cb_data;
+ devc = sdi->priv;
+
+ if (devc->limit_msec) {
+ now = g_get_monotonic_time() / 1000;
+ if (now > devc->end_time)
+ dev_acquisition_stop(sdi, devc->cb_data);
+ }
+
+ if (sdi->status == SR_ST_STOPPING) {
+ usb_source_remove(drvc->sr_ctx);
+
+ dev_close(sdi);
+
+ packet.type = SR_DF_END;
+ sr_session_send(sdi, &packet);
+ }
+
+ memset(&tv, 0, sizeof(struct timeval));
+ libusb_handle_events_timeout_completed(drvc->sr_ctx->libusb_ctx, &tv,
+ NULL);
+
+ return TRUE;
+}
+
+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;
+ struct libusb_transfer *transfer;
+ int ret;
+ unsigned char *buf;
+ drvc = di->priv;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ if (!di->priv) {
+ sr_err("Driver was not initialized.");
+ return SR_ERR;
+ }
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+ devc->cb_data = cb_data;
+ devc->end_time = 0;
+ devc->num_samples = 0;
+ devc->reply_size = 0;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ usb_source_add(drvc->sr_ctx, 100, handle_events, (void *)sdi);
+
+ if (testo_set_serial_params(usb) != SR_OK)
+ return SR_ERR;
+
+ devc->out_transfer = libusb_alloc_transfer(0);
+ if (testo_request_packet(sdi) != SR_OK)
+ return SR_ERR;
+
+ buf = g_try_malloc(MAX_REPLY_SIZE);
+ transfer = libusb_alloc_transfer(0);
+ libusb_fill_bulk_transfer(transfer, usb->devhdl, EP_IN, buf,
+ MAX_REPLY_SIZE, receive_transfer, (void *)sdi, 100);
+ if ((ret = libusb_submit_transfer(transfer) != 0)) {
+ sr_err("Unable to submit transfer: %s.", libusb_error_name(ret));
+ libusb_free_transfer(transfer);
+ g_free(buf);
+ return SR_ERR;
+ }
+ devc->reply_size = 0;
return SR_OK;
}
{
(void)cb_data;
+ if (!di->priv) {
+ sr_err("Driver was not initialized.");
+ return SR_ERR;
+ }
+
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: stop acquisition. */
+ sdi->status = SR_ST_STOPPING;
return SR_OK;
}
projects / libsigrok.git / blobdiff