jtag/drivers/bitbang: use LOG_CUSTOM_LEVEL() macro for SWD

[openocd.git] / src / jtag / drivers / libusb_helper.c

diff --git a/src/jtag/drivers/libusb_helper.c b/src/jtag/drivers/libusb_helper.c
index 9d788ee3944b906e7a8a26f0fd7679157ee4b017..57ea8cd3fa0fe9fe85498f83f0e80a22d91975d3 100644 (file)
--- a/src/jtag/drivers/libusb_helper.c
+++ b/src/jtag/drivers/libusb_helper.c
@@ -377,3 +377,59 @@ int jtag_libusb_handle_events_completed(int *completed)
 {
        return libusb_handle_events_completed(jtag_libusb_context, completed);
 }
+
+static enum {
+       DEV_MEM_NOT_YET_DECIDED,
+       DEV_MEM_AVAILABLE,
+       DEV_MEM_FALLBACK_MALLOC
+} dev_mem_allocation;
+
+/* Older libusb does not implement following API calls - define stubs instead */
+#if !defined(LIBUSB_API_VERSION) || (LIBUSB_API_VERSION < 0x01000105)
+static uint8_t *libusb_dev_mem_alloc(libusb_device_handle *devh, size_t length)
+{
+       return NULL;
+}
+
+static int libusb_dev_mem_free(libusb_device_handle *devh,
+                                                          uint8_t *buffer, size_t length)
+{
+       return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+#endif
+
+uint8_t *oocd_libusb_dev_mem_alloc(libusb_device_handle *devh,
+                       size_t length)
+{
+       uint8_t *buffer = NULL;
+       if (dev_mem_allocation != DEV_MEM_FALLBACK_MALLOC)
+               buffer = libusb_dev_mem_alloc(devh, length);
+
+       if (dev_mem_allocation == DEV_MEM_NOT_YET_DECIDED)
+               dev_mem_allocation = buffer ? DEV_MEM_AVAILABLE : DEV_MEM_FALLBACK_MALLOC;
+
+       if (dev_mem_allocation == DEV_MEM_FALLBACK_MALLOC)
+               buffer = malloc(length);
+
+       return buffer;
+}
+
+int oocd_libusb_dev_mem_free(libusb_device_handle *devh,
+               uint8_t *buffer, size_t length)
+{
+       if (!buffer)
+               return ERROR_OK;
+
+       switch (dev_mem_allocation) {
+       case DEV_MEM_AVAILABLE:
+               return jtag_libusb_error(libusb_dev_mem_free(devh, buffer, length));
+
+       case DEV_MEM_FALLBACK_MALLOC:
+               free(buffer);
+               return ERROR_OK;
+
+       case DEV_MEM_NOT_YET_DECIDED:
+               return ERROR_FAIL;
+       }
+       return ERROR_FAIL;
+}