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[usb] Provide usb_endpoint_name() for use by host controller drivers

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2015-05-09 23:45:13 +01:00
parent 6dba29b18f
commit 9d43c4080d
2 changed files with 30 additions and 33 deletions
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62
src/drivers/bus/usb.c
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@@ -56,22 +56,6 @@ static struct list_head usb_halted = LIST_HEAD_INIT ( usb_halted );
******************************************************************************
*/
/**
* Get USB endpoint name (for debugging)
*
* @v address Endpoint address
* @ret name Endpoint name
*/
static inline const char * usb_endpoint_name ( unsigned int address ) {
static char buf[ 9 /* "EPxx OUT" + NUL */ ];
snprintf ( buf, sizeof ( buf ), "EP%d%s",
( address & USB_ENDPOINT_MAX ),
( address ?
( ( address & USB_ENDPOINT_IN ) ? " IN" : " OUT" ) : "" ));
return buf;
}
/**
* Get USB speed name (for debugging)
*
@@ -227,6 +211,23 @@ usb_endpoint_companion_descriptor ( struct usb_configuration_descriptor *config,
******************************************************************************
*/
/**
* Get USB endpoint name (for debugging)
*
* @v ep USB endpoint
* @ret name Endpoint name
*/
const char * usb_endpoint_name ( struct usb_endpoint *ep ) {
static char buf[ 9 /* "EPxx OUT" + NUL */ ];
unsigned int address = ep->address;
snprintf ( buf, sizeof ( buf ), "EP%d%s",
( address & USB_ENDPOINT_MAX ),
( address ?
( ( address & USB_ENDPOINT_IN ) ? " IN" : " OUT" ) : "" ));
return buf;
}
/**
* Describe USB endpoint from device configuration
*
@@ -300,7 +301,7 @@ int usb_endpoint_open ( struct usb_endpoint *ep ) {
/* Add to endpoint list */
if ( usb->ep[idx] != NULL ) {
DBGC ( usb, "USB %s %s is already open\n",
usb->name, usb_endpoint_name ( ep->address ) );
usb->name, usb_endpoint_name ( ep ) );
rc = -EALREADY;
goto err_already;
}
@@ -310,14 +311,14 @@ int usb_endpoint_open ( struct usb_endpoint *ep ) {
/* Open endpoint */
if ( ( rc = ep->host->open ( ep ) ) != 0 ) {
DBGC ( usb, "USB %s %s could not open: %s\n", usb->name,
usb_endpoint_name ( ep->address ), strerror ( rc ) );
usb_endpoint_name ( ep ), strerror ( rc ) );
goto err_open;
}
ep->open = 1;
DBGC2 ( usb, "USB %s %s opened with MTU %zd, burst %d, interval %d\n",
usb->name, usb_endpoint_name ( ep->address ), ep->mtu,
ep->burst, ep->interval );
usb->name, usb_endpoint_name ( ep ), ep->mtu, ep->burst,
ep->interval );
return 0;
ep->open = 0;
@@ -353,7 +354,7 @@ static int usb_endpoint_clear_tt ( struct usb_endpoint *ep ) {
/* Clear transaction translator buffer */
if ( ( rc = tt->hub->driver->clear_tt ( tt->hub, tt, ep ) ) != 0 ) {
DBGC ( usb, "USB %s %s could not clear transaction translator: "
"%s\n", usb->name, usb_endpoint_name ( ep->address ),
"%s\n", usb->name, usb_endpoint_name ( ep ),
strerror ( rc ) );
return rc;
}
@@ -407,8 +408,7 @@ static int usb_endpoint_reset ( struct usb_endpoint *ep ) {
/* Reset endpoint */
if ( ( rc = ep->host->reset ( ep ) ) != 0 ) {
DBGC ( usb, "USB %s %s could not reset: %s\n",
usb->name, usb_endpoint_name ( ep->address ),
strerror ( rc ) );
usb->name, usb_endpoint_name ( ep ), strerror ( rc ) );
return rc;
}
@@ -423,8 +423,7 @@ static int usb_endpoint_reset ( struct usb_endpoint *ep ) {
USB_ENDPOINT_HALT,
ep->address ) ) != 0 ) ) {
DBGC ( usb, "USB %s %s could not clear endpoint halt: %s\n",
usb->name, usb_endpoint_name ( ep->address ),
strerror ( rc ) );
usb->name, usb_endpoint_name ( ep ), strerror ( rc ) );
return rc;
}
@@ -433,7 +432,7 @@ static int usb_endpoint_reset ( struct usb_endpoint *ep ) {
INIT_LIST_HEAD ( &ep->halted );
DBGC ( usb, "USB %s %s reset\n",
usb->name, usb_endpoint_name ( ep->address ) );
usb->name, usb_endpoint_name ( ep ) );
return 0;
}
@@ -452,8 +451,7 @@ static int usb_endpoint_mtu ( struct usb_endpoint *ep, size_t mtu ) {
ep->mtu = mtu;
if ( ( rc = ep->host->mtu ( ep ) ) != 0 ) {
DBGC ( usb, "USB %s %s could not update MTU: %s\n",
usb->name, usb_endpoint_name ( ep->address ),
strerror ( rc ) );
usb->name, usb_endpoint_name ( ep ), strerror ( rc ) );
return rc;
}
@@ -508,7 +506,7 @@ int usb_message ( struct usb_endpoint *ep, unsigned int request,
/* Enqueue message transfer */
if ( ( rc = ep->host->message ( ep, iobuf ) ) != 0 ) {
DBGC ( usb, "USB %s %s could not enqueue message transfer: "
"%s\n", usb->name, usb_endpoint_name ( ep->address ),
"%s\n", usb->name, usb_endpoint_name ( ep ),
strerror ( rc ) );
return rc;
}
@@ -545,8 +543,7 @@ int usb_stream ( struct usb_endpoint *ep, struct io_buffer *iobuf,
/* Enqueue stream transfer */
if ( ( rc = ep->host->stream ( ep, iobuf, terminate ) ) != 0 ) {
DBGC ( usb, "USB %s %s could not enqueue stream transfer: %s\n",
usb->name, usb_endpoint_name ( ep->address ),
strerror ( rc ) );
usb->name, usb_endpoint_name ( ep ), strerror ( rc ) );
return rc;
}
@@ -574,8 +571,7 @@ void usb_complete_err ( struct usb_endpoint *ep, struct io_buffer *iobuf,
/* Schedule reset, if applicable */
if ( ( rc != 0 ) && ep->open ) {
DBGC ( usb, "USB %s %s completion failed: %s\n",
usb->name, usb_endpoint_name ( ep->address ),
strerror ( rc ) );
usb->name, usb_endpoint_name ( ep ), strerror ( rc ) );
list_del ( &ep->halted );
list_add_tail ( &ep->halted, &usb_halted );
}