void usb_storage_init_connection(void)
{
logf("ums: set config");
/* prime rx endpoint. We only need room for commands */
state = WAITING_FOR_COMMAND;
#if (CONFIG_CPU == IMX31L || defined(CPU_TCC77X) || defined(CPU_TCC780X) || \
defined(BOOTLOADER) || CONFIG_CPU == DM320) && !defined(CPU_PP502x)
static unsigned char _cbw_buffer[MAX_CBW_SIZE]
USB_DEVBSS_ATTR __attribute__((aligned(32)));
cbw_buffer = (void *)_cbw_buffer;
static unsigned char _transfer_buffer[ALLOCATE_BUFFER_SIZE]
USB_DEVBSS_ATTR __attribute__((aligned(32)));
tb.transfer_buffer = (void *)_transfer_buffer;
#ifdef USB_USE_RAMDISK
static unsigned char _ramdisk_buffer[RAMDISK_SIZE*SECTOR_SIZE];
ramdisk_buffer = _ramdisk_buffer;
#endif
#else
/* TODO : check if bufsize is at least 32K ? */
size_t bufsize;
unsigned char * audio_buffer;
audio_buffer = audio_get_buffer(false,&bufsize);
#if defined(UNCACHED_ADDR) && CONFIG_CPU != AS3525
cbw_buffer = (void *)UNCACHED_ADDR((unsigned int)(audio_buffer+31) & 0xffffffe0);
#else
cbw_buffer = (void *)((unsigned int)(audio_buffer+31) & 0xffffffe0);
#endif
tb.transfer_buffer = cbw_buffer + MAX_CBW_SIZE;
commit_discard_dcache();
#ifdef USB_USE_RAMDISK
ramdisk_buffer = tb.transfer_buffer + ALLOCATE_BUFFER_SIZE;
#endif
#endif
usb_drv_recv(ep_out, cbw_buffer, MAX_CBW_SIZE);
int i;
for(i=0;i<storage_num_drives();i++) {
locked[i] = false;
ejected[i] = !check_disk_present(IF_MD(i));
queue_broadcast(SYS_USB_LUN_LOCKED, (i<<16)+0);
}
}
static struct ep_type endpoints[USB_NUM_ENDPOINTS][2];
/* setup packet for EP0 */
/* USB control requests may be up to 64 bytes in size.
Even though we never use anything more than the 8 header bytes,
we are required to accept request packets of up to 64 bytes size.
Provide buffer space for these additional payload bytes so that
e.g. write descriptor requests (which are rejected by us, but the
payload is transferred anyway) do not cause memory corruption.
Fixes FS#12310. -- Michael Sparmann (theseven) */
static union {
struct usb_ctrlrequest header; /* 8 bytes */
unsigned char payload[64];
} _ep0_setup_pkt USB_DEVBSS_ATTR;
static struct usb_ctrlrequest *ep0_setup_pkt = UNCACHED_ADDR(&_ep0_setup_pkt.header);
/* state of EP0 */
static enum ep0state ep0_state;
bool usb_drv_stalled(int endpoint, bool in)
{
return DEPCTL(endpoint, !in) & DEPCTL_stall;
}
void usb_drv_stall(int endpoint, bool stall, bool in)
{
if (stall)
DEPCTL(endpoint, !in) |= DEPCTL_stall;
else
DEPCTL(endpoint, !in) &= ~DEPCTL_stall;
