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usb-s3c6400x: start factorization

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31506 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2011-12-31 20:38:44 +00:00
parent ba03cb4aea
commit 12b70597a6
2 changed files with 55 additions and 95 deletions
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46
firmware/target/arm/as3525/usb-drv-as3525v2.c
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@ -39,17 +39,6 @@
static const uint8_t in_ep_list[] = {0, 1, 3, 5};
static const uint8_t out_ep_list[] = {0, 2, 4};
/* store per endpoint, per direction, information */
struct ep_type
{
unsigned int size; /* length of the data buffer */
struct semaphore complete; /* wait object */
int8_t status; /* completion status (0 for success) */
bool active; /* true is endpoint has been requested (true for EP0) */
bool done; /* transfer completed */
bool busy; /* true is a transfer is pending */
};
/* state of EP0 (to correctly schedule setup packet enqueing) */
enum ep0state
{
@ -423,7 +412,7 @@ void usb_drv_cancel_all_transfers()
cancel_all_transfers(false);
}
static void usb_drv_transfer(int ep, void *ptr, int len, bool out)
static void ep_transfer(int ep, void *ptr, int len, bool out)
{
/* disable interrupts to avoid any race */
int oldlevel = disable_irq_save();
@ -458,51 +447,20 @@ static void usb_drv_transfer(int ep, void *ptr, int len, bool out)
restore_irq(oldlevel);
}
int usb_drv_recv(int ep, void *ptr, int len)
{
usb_drv_transfer(EP_NUM(ep), ptr, len, true);
return 0;
}
int usb_drv_send(int ep, void *ptr, int len)
{
ep = EP_NUM(ep);
struct ep_type *endpoint = &endpoints[ep][1];
endpoint->done = false;
usb_drv_transfer(ep, ptr, len, false);
ep_transfer(ep, ptr, len, false);
while (endpoint->busy && !endpoint->done)
semaphore_wait(&endpoint->complete, TIMEOUT_BLOCK);
return endpoint->status;
}
int usb_drv_send_nonblocking(int ep, void *ptr, int len)
{
usb_drv_transfer(EP_NUM(ep), ptr, len, false);
return 0;
}
void usb_drv_set_test_mode(int mode)
{
/* there is a perfect matching between usb test mode code
* and the register field value */
DCTL = (DCTL & ~bitm(DCTL, tstctl)) | (mode << DCTL_tstctl_bitp);
}
void usb_drv_set_address(int address)
{
(void) address;
}
void usb_drv_stall(int ep, bool stall, bool in)
{
if (stall)
DEPCTL(ep, !in) |= DEPCTL_stall;
else
DEPCTL(ep, !in) &= ~DEPCTL_stall;
}
bool usb_drv_stalled(int ep, bool in)
{
return DEPCTL(ep, !in) & DEPCTL_stall;
}