int usb_open(struct usb *usb, int init,
struct proc_specific_functions *proc_ops)
{
struct per_handle *boot;
u32 device;
u16 options = 1;
int n;
/*clear global usb structure*/
memset(usb, 0, sizeof(*usb));
local_proc_ops = proc_ops;
if (init) {
device = DEVICE_USB;
usb->dread.config_object = NULL;
usb->dread.options = &options;
usb->dread.device_type = DEVICE_USB;
usb->dwrite.config_object = NULL;
usb->dwrite.options = &options;
usb->dwrite.device_type = DEVICE_USB;
#if defined(CONFIG_IS_OMAP4)
/* Bulk transfers default to DMA mode */
usb->dread.xfer_mode = XFER_MODE_DMA;
usb->dwrite.xfer_mode = XFER_MODE_DMA;
#endif
n = rom_get_device_data((void *)&usb->dread.device_data);
if (n)
return n;
usb->dwrite.device_data = usb->dread.device_data;
} else {
/* get peripheral device descriptor
that was used during rom usb boot */
n = rom_get_per_device(&boot);
if (n)
return n;
device = boot->device_type;
memcpy(&usb->dread, boot, sizeof(struct per_handle));
memcpy(&usb->dwrite, boot, sizeof(struct per_handle));
}
/* get rom usb driver */
n = rom_get_per_driver(&usb->io, device);
if (n)
return n;
if (init)
usb_init(usb);
return 0;
}
int usb_open(struct usb *usb)
{
int (*rom_get_per_driver)(struct per_driver **io, u32 device_type);
int (*rom_get_per_device)(struct per_handle **rh);
struct per_handle *boot;
int n;
u32 base;
memset(usb, 0, sizeof(*usb));
if (get_omap_rev() >= OMAP_4460_ES1_DOT_0)
base = PUBLIC_API_BASE_4460;
else
base = PUBLIC_API_BASE_4430;
rom_get_per_driver = API(base + PUBLIC_GET_DRIVER_PER_OFFSET);
rom_get_per_device = API(base + PUBLIC_GET_DEVICE_PER_OFFSET);
n = rom_get_per_device(&boot);
if (n)
return n;
if ((boot->device_type != DEVICE_USB) &&
(boot->device_type != DEVICE_USBEXT))
return -1;
n = rom_get_per_driver(&usb->io, boot->device_type);
if (n)
return n;
usb->dread.xfer_mode = boot->xfer_mode;
usb->dread.options = boot->options;
usb->dread.device_type = boot->device_type;
usb->dwrite.xfer_mode = boot->xfer_mode;
usb->dwrite.options = boot->options;
usb->dwrite.device_type = boot->device_type;
return 0;
}
