/*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
*
- * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2010-2012 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
#include <libusb.h>
#include <glib.h>
+#include <glib/gstdio.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
-#include "config.h"
-
-int ezusb_reset(struct libusb_device_handle *hdl, int set_clear)
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+/* Message logging helpers with subsystem-specific prefix string. */
+#define LOG_PREFIX "ezusb: "
+#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
+#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
+#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
+#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
+#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
+#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
+
+SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear)
{
- int err;
+ int ret;
unsigned char buf[1];
- g_message("setting CPU reset mode %s...", set_clear ? "on" : "off");
+ sr_info("setting CPU reset mode %s...",
+ set_clear ? "on" : "off");
buf[0] = set_clear ? 1 : 0;
- err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0,
+ ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0,
0xe600, 0x0000, buf, 1, 100);
- if (err < 0)
- g_warning("Unable to send control request: %d", err);
+ if (ret < 0)
+ sr_err("Unable to send control request: %s.",
+ libusb_error_name(ret));
- return err;
+ return ret;
}
-int ezusb_install_firmware(libusb_device_handle *hdl, const char *filename)
+SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
+ const char *filename)
{
FILE *fw;
- int offset, chunksize, err, result;
+ int offset, chunksize, ret, result;
unsigned char buf[4096];
- g_message("Uploading firmware at %s", filename);
- if ((fw = fopen(filename, "rb")) == NULL) {
- g_warning("Unable to open firmware file %s for reading: %s",
- filename, strerror(errno));
- return 1;
+ sr_info("Uploading firmware at %s", filename);
+ if ((fw = g_fopen(filename, "rb")) == NULL) {
+ sr_err("Unable to open firmware file %s for reading: %s",
+ filename, strerror(errno));
+ return SR_ERR;
}
- result = offset = 0;
+ result = SR_OK;
+ offset = 0;
while (1) {
chunksize = fread(buf, 1, 4096, fw);
if (chunksize == 0)
break;
- err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, 0xa0, offset,
0x0000, buf, chunksize, 100);
- if (err < 0) {
- g_warning("Unable to send firmware to device: %d", err);
- result = 1;
+ if (ret < 0) {
+ sr_err("Unable to send firmware to device: %s.",
+ libusb_error_name(ret));
+ result = SR_ERR;
break;
}
- g_message("Uploaded %d bytes", chunksize);
+ sr_info("Uploaded %d bytes", chunksize);
offset += chunksize;
}
fclose(fw);
- g_message("Firmware upload done");
+ sr_info("Firmware upload done");
return result;
}
-int ezusb_upload_firmware(libusb_device *dev, int configuration,
- const char *filename)
+SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
+ const char *filename)
{
struct libusb_device_handle *hdl;
- int err;
+ int ret;
+
+ sr_info("uploading firmware to device on %d.%d",
+ libusb_get_bus_number(dev), libusb_get_device_address(dev));
- g_message("uploading firmware to device on %d.%d",
- libusb_get_bus_number(dev), libusb_get_device_address(dev));
+ if ((ret = libusb_open(dev, &hdl)) < 0) {
+ sr_err("failed to open device: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
- err = libusb_open(dev, &hdl);
- if (err != 0) {
- g_warning("failed to open device: %d", err);
- return 1;
+/*
+ * The libusbx 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(hdl, 0) == 1) {
+ if ((ret = libusb_detach_kernel_driver(hdl, 0)) < 0) {
+ sr_err("failed to detach kernel driver: %s",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
}
+#endif
- err = libusb_set_configuration(hdl, configuration);
- if (err != 0) {
- g_warning("Unable to set configuration: %d", err);
- return 1;
+ if ((ret = libusb_set_configuration(hdl, configuration)) < 0) {
+ sr_err("Unable to set configuration: %s",
+ libusb_error_name(ret));
+ return SR_ERR;
}
if ((ezusb_reset(hdl, 1)) < 0)
- return 1;
+ return SR_ERR;
- if (ezusb_install_firmware(hdl, filename) != 0)
- return 1;
+ if (ezusb_install_firmware(hdl, filename) < 0)
+ return SR_ERR;
if ((ezusb_reset(hdl, 0)) < 0)
- return 1;
+ return SR_ERR;
libusb_close(hdl);
- return 0;
+ return SR_OK;
}