#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 GSList *scan(GSList *options)
{
struct drv_context *drvc;
- GSList *devices;
+ 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;
- (void)options;
-
- 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 = 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_probe_new(i, SR_PROBE_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;
- drvc = di->priv;
+ if (!(drvc = di->priv)) {
+ sr_err("Driver was not initialized.");
+ return SR_ERR;
+ }
- return drvc->instances;
-}
+ usb = sdi->conn;
-static int dev_clear(void)
-{
- return std_dev_clear(di, NULL);
-}
+ if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
+ return SR_ERR;
-static int dev_open(struct sr_dev_inst *sdi)
-{
- (void)sdi;
+/*
+ * 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
- /* TODO: get handle from sdi->conn and open it. */
+ 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 SR_OK;
+ return ret;
}
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_usb_dev_inst *usb;
- /* TODO: get handle from sdi->conn and close it. */
+ 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)
{
- dev_clear();
+ int ret;
+ struct drv_context *drvc;
- /* TODO: free other driver resources, if any. */
+ if (!(drvc = di->priv))
+ /* Can get called on an unused driver, doesn't matter. */
+ return SR_OK;
- 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)
+static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
- (void)sdi;
- (void)data;
+ (void)cg;
- ret = SR_OK;
+ devc = sdi->priv;
switch (key) {
- /* TODO */
+ 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 ret;
+ return SR_OK;
}
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
+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)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_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)
+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_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 ret;
+ return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
- (void)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;
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ 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(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;
- /* TODO: stop acquisition. */
+ /* Signal USB transfer handler to clean up and stop. */
+ sdi->status = SR_ST_STOPPING;
return SR_OK;
}
.cleanup = cleanup,
.scan = scan,
.dev_list = dev_list,
- .dev_clear = dev_clear,
+ .dev_clear = NULL,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
projects / libsigrok.git / blobdiff