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Diffstat (limited to 'lib/iface.c')
-rw-r--r--lib/iface.c317
1 files changed, 149 insertions, 168 deletions
diff --git a/lib/iface.c b/lib/iface.c
index 3c8cb80..85dfcd8 100644
--- a/lib/iface.c
+++ b/lib/iface.c
@@ -74,6 +74,155 @@ uhd_iface_free(uhd_iface *iface)
}
+enum libusb_error
+uhd_iface_detach(uhd_iface *iface)
+{
+ enum libusb_error err;
+
+ assert(uhd_iface_valid(iface));
+
+ err = libusb_detach_kernel_driver(iface->handle, iface->number);
+ if (err == LIBUSB_SUCCESS)
+ iface->detached = true;
+ else if (err != LIBUSB_ERROR_NOT_FOUND)
+ return err;
+
+ return LIBUSB_SUCCESS;
+}
+
+
+enum libusb_error
+uhd_iface_attach(uhd_iface *iface)
+{
+ enum libusb_error err;
+
+ assert(uhd_iface_valid(iface));
+
+ if (iface->detached)
+ {
+ err = libusb_attach_kernel_driver(iface->handle, iface->number);
+ if (err != LIBUSB_SUCCESS)
+ return err;
+ iface->detached = false;
+ }
+
+ return LIBUSB_SUCCESS;
+}
+
+
+enum libusb_error
+uhd_iface_claim(uhd_iface *iface)
+{
+ enum libusb_error err;
+
+ assert(uhd_iface_valid(iface));
+
+ err = libusb_claim_interface(iface->handle, iface->number);
+ if (err != LIBUSB_SUCCESS)
+ return err;
+
+ iface->claimed = true;
+
+ return LIBUSB_SUCCESS;
+}
+
+
+enum libusb_error
+uhd_iface_release(uhd_iface *iface)
+{
+ enum libusb_error err;
+
+ assert(uhd_iface_valid(iface));
+
+ err = libusb_release_interface(iface->handle, iface->number);
+ if (err != LIBUSB_SUCCESS)
+ return err;
+
+ iface->claimed = false;
+
+ return LIBUSB_SUCCESS;
+}
+
+
+enum libusb_error
+uhd_iface_clear_halt(uhd_iface *iface)
+{
+ enum libusb_error err;
+
+ assert(uhd_iface_valid(iface));
+
+ err = libusb_clear_halt(iface->handle, iface->int_in_ep_addr);
+ if (err != LIBUSB_SUCCESS)
+ return err;
+
+ return LIBUSB_SUCCESS;
+}
+
+
+enum libusb_error
+uhd_iface_set_idle(const uhd_iface *iface,
+ uint8_t duration,
+ unsigned int timeout)
+{
+ int rc;
+
+ assert(uhd_iface_valid(iface));
+
+ rc = libusb_control_transfer(iface->handle,
+ /* host->device, class, interface */
+ 0x21,
+ /* Set_Idle */
+ 0x0A,
+ /* duration for all report IDs */
+ duration << 8,
+ /* interface */
+ iface->number,
+ NULL, 0,
+ timeout);
+ /*
+ * Ignoring EPIPE, which means a STALL handshake, which is OK on
+ * control pipes and indicates request is not supported.
+ * See USB 2.0 spec, 8.4.5 Handshake Packets
+ */
+ if (rc < 0 && rc != LIBUSB_ERROR_PIPE)
+ return rc;
+
+ return LIBUSB_SUCCESS;
+}
+
+
+enum libusb_error
+uhd_iface_set_protocol(const uhd_iface *iface,
+ bool report,
+ unsigned int timeout)
+{
+ int rc;
+
+ assert(uhd_iface_valid(iface));
+
+ rc = libusb_control_transfer(iface->handle,
+ /* host->device, class, interface */
+ 0x21,
+ /* Set_Protocol */
+ 0x0B,
+ /* 0 - boot, 1 - report */
+ report ? 1 : 0,
+ /* interface */
+ iface->number,
+ NULL, 0,
+ timeout);
+ /*
+ * Ignoring EPIPE, which means a STALL handshake, which is OK on
+ * control pipes and indicates request is not supported.
+ * See USB 2.0 spec, 8.4.5 Handshake Packets
+ */
+ if (rc < 0 && rc != LIBUSB_ERROR_PIPE)
+ return rc;
+
+ return LIBUSB_SUCCESS;
+}
+
+
bool
uhd_iface_list_valid(const uhd_iface *list)
{
@@ -224,171 +373,3 @@ uhd_iface_list_fltr_by_num(uhd_iface *list,
}
-enum libusb_error
-uhd_iface_list_detach(uhd_iface *list)
-{
- enum libusb_error err;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- {
- err = libusb_detach_kernel_driver(list->handle, list->number);
- if (err == LIBUSB_SUCCESS)
- list->detached = true;
- else if (err != LIBUSB_ERROR_NOT_FOUND)
- return err;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
-enum libusb_error
-uhd_iface_list_attach(uhd_iface *list)
-{
- enum libusb_error err;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- if (list->detached)
- {
- err = libusb_attach_kernel_driver(list->handle, list->number);
- if (err != LIBUSB_SUCCESS)
- return err;
- list->detached = false;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
-enum libusb_error
-uhd_iface_list_claim(uhd_iface *list)
-{
- enum libusb_error err;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- {
- err = libusb_claim_interface(list->handle, list->number);
- if (err != LIBUSB_SUCCESS)
- return err;
-
- list->claimed = true;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
-enum libusb_error
-uhd_iface_list_clear_halt(uhd_iface *list)
-{
- enum libusb_error err;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- {
- err = libusb_clear_halt(list->handle, list->int_in_ep_addr);
- if (err != LIBUSB_SUCCESS)
- return err;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
-enum libusb_error
-uhd_iface_list_set_idle(const uhd_iface *list,
- uint8_t duration,
- unsigned int timeout)
-{
- int rc;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- {
- rc = libusb_control_transfer(list->handle,
- /* host->device, class, interface */
- 0x21,
- /* Set_Idle */
- 0x0A,
- /* duration for all report IDs */
- duration << 8,
- /* interface */
- list->number,
- NULL, 0,
- timeout);
- /*
- * Ignoring EPIPE, which means a STALL handshake, which is OK on
- * control pipes and indicates request is not supported.
- * See USB 2.0 spec, 8.4.5 Handshake Packets
- */
- if (rc < 0 && rc != LIBUSB_ERROR_PIPE)
- return rc;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
-enum libusb_error
-uhd_iface_list_set_protocol(const uhd_iface *list,
- bool report,
- unsigned int timeout)
-{
- int rc;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- {
- rc = libusb_control_transfer(list->handle,
- /* host->device, class, interface */
- 0x21,
- /* Set_Protocol */
- 0x0B,
- /* 0 - boot, 1 - report */
- report ? 1 : 0,
- /* interface */
- list->number,
- NULL, 0,
- timeout);
- /*
- * Ignoring EPIPE, which means a STALL handshake, which is OK on
- * control pipes and indicates request is not supported.
- * See USB 2.0 spec, 8.4.5 Handshake Packets
- */
- if (rc < 0 && rc != LIBUSB_ERROR_PIPE)
- return rc;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
-enum libusb_error
-uhd_iface_list_release(uhd_iface *list)
-{
- enum libusb_error err;
-
- assert(uhd_iface_list_valid(list));
-
- for (; list != NULL; list = list->next)
- if (list->claimed)
- {
- err = libusb_release_interface(list->handle, list->number);
- if (err != LIBUSB_SUCCESS)
- return err;
- list->claimed = false;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-
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