/*
*
* usb_ep_ops
*
*/
static int usbhsg_ep_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
struct usbhs_pipe *pipe;
int ret = -EIO;
unsigned long flags;
usbhs_lock(priv, flags);
/*
* if it already have pipe,
* nothing to do
*/
if (uep->pipe) {
usbhs_pipe_clear(uep->pipe);
usbhs_pipe_sequence_data0(uep->pipe);
ret = 0;
goto usbhsg_ep_enable_end;
}
pipe = usbhs_pipe_malloc(priv,
usb_endpoint_type(desc),
usb_endpoint_dir_in(desc));
if (pipe) {
uep->pipe = pipe;
pipe->mod_private = uep;
/* set epnum / maxp */
usbhs_pipe_config_update(pipe, 0,
usb_endpoint_num(desc),
usb_endpoint_maxp(desc));
/*
* usbhs_fifo_dma_push/pop_handler try to
* use dmaengine if possible.
* It will use pio handler if impossible.
*/
if (usb_endpoint_dir_in(desc)) {
pipe->handler = &usbhs_fifo_dma_push_handler;
} else {
pipe->handler = &usbhs_fifo_dma_pop_handler;
usbhs_xxxsts_clear(priv, BRDYSTS,
usbhs_pipe_number(pipe));
}
ret = 0;
}
usbhsg_ep_enable_end:
usbhs_unlock(priv, flags);
return ret;
}
/*
* module start/stop
*/
static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
{
struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
struct usbhs_pipe *pipe;
struct renesas_usbhs_driver_pipe_config *pipe_configs =
usbhs_get_dparam(priv, pipe_configs);
int pipe_size = usbhs_get_dparam(priv, pipe_size);
int old_type, dir_in, i;
/* init all pipe */
old_type = USB_ENDPOINT_XFER_CONTROL;
for (i = 0; i < pipe_size; i++) {
/*
* data "output" will be finished as soon as possible,
* but there is no guaranty at data "input" case.
*
* "input" needs "standby" pipe.
* So, "input" direction pipe > "output" direction pipe
* is good idea.
*
* 1st USB_ENDPOINT_XFER_xxx will be output direction,
* and the other will be input direction here.
*
* ex)
* ...
* USB_ENDPOINT_XFER_ISOC -> dir out
* USB_ENDPOINT_XFER_ISOC -> dir in
* USB_ENDPOINT_XFER_BULK -> dir out
* USB_ENDPOINT_XFER_BULK -> dir in
* USB_ENDPOINT_XFER_BULK -> dir in
* ...
*/
dir_in = (pipe_configs[i].type == old_type);
old_type = pipe_configs[i].type;
if (USB_ENDPOINT_XFER_CONTROL == pipe_configs[i].type) {
pipe = usbhs_dcp_malloc(priv);
usbhsh_hpriv_to_dcp(hpriv) = pipe;
} else {
pipe = usbhs_pipe_malloc(priv,
pipe_configs[i].type,
dir_in);
}
pipe->mod_private = NULL;
}
}
/*
*
* usb_ep_ops
*
*/
static int usbhsg_ep_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
struct usbhs_pipe *pipe;
spinlock_t *lock;
unsigned long flags;
int ret = -EIO;
/*
* if it already have pipe,
* nothing to do
*/
if (uep->pipe)
return 0;
/******************** spin lock ********************/
lock = usbhsg_trylock(gpriv, &flags);
pipe = usbhs_pipe_malloc(priv, desc);
if (pipe) {
uep->pipe = pipe;
pipe->mod_private = uep;
INIT_LIST_HEAD(&uep->list);
if (usb_endpoint_dir_in(desc))
uep->handler = &usbhsg_handler_send_packet;
else
uep->handler = &usbhsg_handler_recv_packet;
ret = 0;
}
usbhsg_unlock(lock, &flags);
/******************** spin unlock ******************/
return ret;
}
/*
*
* usb_ep_ops
*
*/
static int usbhsg_ep_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
struct usbhs_pipe *pipe;
int ret = -EIO;
/*
* if it already have pipe,
* nothing to do
*/
if (uep->pipe) {
usbhs_pipe_clear(uep->pipe);
usbhs_pipe_clear_sequence(uep->pipe);
return 0;
}
pipe = usbhs_pipe_malloc(priv, desc);
if (pipe) {
uep->pipe = pipe;
pipe->mod_private = uep;
/*
* usbhs_fifo_dma_push/pop_handler try to
* use dmaengine if possible.
* It will use pio handler if impossible.
*/
if (usb_endpoint_dir_in(desc))
uep->handler = &usbhs_fifo_dma_push_handler;
else
uep->handler = &usbhs_fifo_dma_pop_handler;
ret = 0;
}
return ret;
}
