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vsllink: rewrite to use jtag_usb_open 

Rewrite vsllink_usb_open to use jtag_usb_open helper.

Eliminates spurious calls to exit().
This commit is contained in:
Zachary T Welch 2009-11-19 12:11:03 -08:00
parent 0f544f4310
commit de9a182ca6
1 changed files with 31 additions and 55 deletions
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86
src/jtag/vsllink.c
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@ -28,9 +28,7 @@
#include "interface.h"
#include "commands.h"
#include <usb.h>
#include "usb_common.h"
//#define _VSLLINK_IN_DEBUG_MODE_
@ -1703,64 +1701,42 @@ static int vsllink_tap_execute_dma(void)
static struct vsllink* vsllink_usb_open(void)
{
struct usb_bus *busses;
struct usb_bus *bus;
struct usb_device *dev;
int ret;
struct vsllink *result;
result = (struct vsllink*) malloc(sizeof(struct vsllink));
usb_init();
usb_find_busses();
usb_find_devices();
busses = usb_get_busses();
const uint16_t vids[] = { vsllink_usb_vid, 0 };
const uint16_t pids[] = { vsllink_usb_pid, 0 };
struct usb_dev_handle *dev;
if (jtag_usb_open(vids, pids, &dev) != ERROR_OK)
return NULL;
/* find vsllink device in usb bus */
for (bus = busses; bus; bus = bus->next)
/* usb_set_configuration required under win32 */
struct usb_device *udev = usb_device(dev);
int ret = usb_set_configuration(dev, udev->config[0].bConfigurationValue);
if (ret != 0)
{
for (dev = bus->devices; dev; dev = dev->next)
{
if ((dev->descriptor.idVendor == vsllink_usb_vid) && (dev->descriptor.idProduct == vsllink_usb_pid))
{
result->usb_handle = usb_open(dev);
if (NULL == result->usb_handle)
{
LOG_ERROR("failed to open %04X:%04X, not enough permissions?", vsllink_usb_vid, vsllink_usb_pid);
exit(-1);
}
/* usb_set_configuration required under win32 */
ret = usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue);
if (ret != 0)
{
LOG_ERROR("fail to set configuration to %d, %d returned, not enough permissions?", dev->config[0].bConfigurationValue, ret);
exit(-1);
}
ret = usb_claim_interface(result->usb_handle, vsllink_usb_interface);
if (ret != 0)
{
LOG_ERROR("fail to claim interface %d, %d returned", vsllink_usb_interface, ret);
exit(-1);
}
#if 0
/*
* This makes problems under Mac OS X. And is not needed
* under Windows. Hopefully this will not break a linux build
*/
usb_set_altinterface(result->usb_handle, 0);
#endif
return result;
}
}
LOG_ERROR("fail to set configuration to %d (error %d)."
"Not enough permissions for the device?",
udev->config[0].bConfigurationValue, ret);
return NULL;
}
ret = usb_claim_interface(dev, vsllink_usb_interface);
if (ret != 0)
{
LOG_ERROR("fail to claim interface %d, %d returned",
vsllink_usb_interface, ret);
return NULL;
}
#if 0
/*
* This makes problems under Mac OS X. And is not needed
* under Windows. Hopefully this will not break a linux build
*/
usb_set_altinterface(dev, 0);
#endif
free(result);
return NULL;
struct vsllink *result = malloc(sizeof(struct vsllink));
result->usb_handle = dev;
return result;
}
static void vsllink_usb_close(struct vsllink *vsllink)