summaryrefslogtreecommitdiffstats
path: root/qemu/roms/ipxe/src/drivers/usb/usbnet.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/usb/usbnet.c')
-rw-r--r--qemu/roms/ipxe/src/drivers/usb/usbnet.c284
1 files changed, 0 insertions, 284 deletions
diff --git a/qemu/roms/ipxe/src/drivers/usb/usbnet.c b/qemu/roms/ipxe/src/drivers/usb/usbnet.c
deleted file mode 100644
index b92336d05..000000000
--- a/qemu/roms/ipxe/src/drivers/usb/usbnet.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#include <string.h>
-#include <errno.h>
-#include <ipxe/usb.h>
-#include <ipxe/usbnet.h>
-
-/** @file
- *
- * USB network devices
- *
- * USB network devices use a variety of packet formats and interface
- * descriptors, but tend to have several features in common:
- *
- * - a single interrupt endpoint using the generic refill mechanism
- *
- * - a single bulk IN endpoint using the generic refill mechanism
- *
- * - a single bulk OUT endpoint
- *
- * - optional use of an alternate setting to enable the data interface
- *
- */
-
-/**
- * Open USB network device
- *
- * @v usbnet USB network device
- * @ret rc Return status code
- */
-int usbnet_open ( struct usbnet_device *usbnet ) {
- struct usb_device *usb = usbnet->func->usb;
- int rc;
-
- /* Open interrupt endpoint */
- if ( ( rc = usb_endpoint_open ( &usbnet->intr ) ) != 0 ) {
- DBGC ( usbnet, "USBNET %s could not open interrupt: %s\n",
- usbnet->func->name, strerror ( rc ) );
- goto err_open_intr;
- }
-
- /* Refill interrupt endpoint */
- if ( ( rc = usb_refill ( &usbnet->intr ) ) != 0 ) {
- DBGC ( usbnet, "USBNET %s could not refill interrupt: %s\n",
- usbnet->func->name, strerror ( rc ) );
- goto err_refill_intr;
- }
-
- /* Select alternate setting for data interface, if applicable */
- if ( usbnet->alternate &&
- ( ( rc = usb_set_interface ( usb, usbnet->data,
- usbnet->alternate ) ) != 0 ) ) {
- DBGC ( usbnet, "USBNET %s could not set alternate interface "
- "%d: %s\n", usbnet->func->name, usbnet->alternate,
- strerror ( rc ) );
- goto err_set_interface;
- }
-
- /* Open bulk IN endpoint */
- if ( ( rc = usb_endpoint_open ( &usbnet->in ) ) != 0 ) {
- DBGC ( usbnet, "USBNET %s could not open bulk IN: %s\n",
- usbnet->func->name, strerror ( rc ) );
- goto err_open_in;
- }
-
- /* Open bulk OUT endpoint */
- if ( ( rc = usb_endpoint_open ( &usbnet->out ) ) != 0 ) {
- DBGC ( usbnet, "USBNET %s could not open bulk OUT: %s\n",
- usbnet->func->name, strerror ( rc ) );
- goto err_open_out;
- }
-
- /* Refill bulk IN endpoint */
- if ( ( rc = usb_refill ( &usbnet->in ) ) != 0 ) {
- DBGC ( usbnet, "USBNET %s could not refill bulk IN: %s\n",
- usbnet->func->name, strerror ( rc ) );
- goto err_refill_in;
- }
-
- return 0;
-
- err_refill_in:
- usb_endpoint_close ( &usbnet->out );
- err_open_out:
- usb_endpoint_close ( &usbnet->in );
- err_open_in:
- if ( usbnet->alternate )
- usb_set_interface ( usb, usbnet->data, 0 );
- err_set_interface:
- err_refill_intr:
- usb_endpoint_close ( &usbnet->intr );
- err_open_intr:
- return rc;
-}
-
-/**
- * Close USB network device
- *
- * @v usbnet USB network device
- */
-void usbnet_close ( struct usbnet_device *usbnet ) {
- struct usb_device *usb = usbnet->func->usb;
-
- /* Close bulk OUT endpoint */
- usb_endpoint_close ( &usbnet->out );
-
- /* Close bulk IN endpoint */
- usb_endpoint_close ( &usbnet->in );
-
- /* Reset alternate setting for data interface, if applicable */
- if ( usbnet->alternate )
- usb_set_interface ( usb, usbnet->data, 0 );
-
- /* Close interrupt endpoint */
- usb_endpoint_close ( &usbnet->intr );
-}
-
-/**
- * Refill USB network device bulk IN and interrupt endpoints
- *
- * @v usbnet USB network device
- * @ret rc Return status code
- */
-int usbnet_refill ( struct usbnet_device *usbnet ) {
- int rc;
-
- /* Refill bulk IN endpoint */
- if ( ( rc = usb_refill ( &usbnet->in ) ) != 0 )
- return rc;
-
- /* Refill interrupt endpoint */
- if ( ( rc = usb_refill ( &usbnet->intr ) ) != 0 )
- return rc;
-
- return 0;
-}
-
-/**
- * Describe communications interface and interrupt endpoint
- *
- * @v usbnet USB network device
- * @v config Configuration descriptor
- * @ret rc Return status code
- */
-static int usbnet_comms_describe ( struct usbnet_device *usbnet,
- struct usb_configuration_descriptor *config){
- struct usb_interface_descriptor *desc;
- unsigned int comms;
- unsigned int i;
- int rc;
-
- /* Iterate over all available interfaces */
- for ( i = 0 ; i < usbnet->func->count ; i++ ) {
-
- /* Get interface number */
- comms = usbnet->func->interface[i];
-
- /* Locate interface descriptor */
- desc = usb_interface_descriptor ( config, comms, 0 );
- if ( ! desc )
- continue;
-
- /* Describe interrupt endpoint */
- if ( ( rc = usb_endpoint_described ( &usbnet->intr, config,
- desc, USB_INTERRUPT_IN,
- 0 ) ) != 0 )
- continue;
-
- /* Record communications interface */
- usbnet->comms = comms;
- DBGC ( usbnet, "USBNET %s found communications interface %d\n",
- usbnet->func->name, comms );
- return 0;
- }
-
- DBGC ( usbnet, "USBNET %s found no communications interface\n",
- usbnet->func->name );
- return -ENOENT;
-}
-
-/**
- * Describe data interface and bulk endpoints
- *
- * @v usbnet USB network device
- * @v config Configuration descriptor
- * @ret rc Return status code
- */
-static int usbnet_data_describe ( struct usbnet_device *usbnet,
- struct usb_configuration_descriptor *config ){
- struct usb_interface_descriptor *desc;
- unsigned int data;
- unsigned int alt;
- unsigned int i;
- int rc;
-
- /* Iterate over all available interfaces */
- for ( i = 0 ; i < usbnet->func->count ; i++ ) {
-
- /* Get interface number */
- data = usbnet->func->interface[i];
-
- /* Iterate over all existent alternate settings */
- for ( alt = 0 ; ; alt++ ) {
-
- /* Locate interface descriptor */
- desc = usb_interface_descriptor ( config, data, alt );
- if ( ! desc )
- break;
-
- /* Describe bulk IN endpoint */
- if ( ( rc = usb_endpoint_described ( &usbnet->in,
- config, desc,
- USB_BULK_IN,
- 0 ) ) != 0 )
- continue;
-
- /* Describe bulk OUT endpoint */
- if ( ( rc = usb_endpoint_described ( &usbnet->out,
- config, desc,
- USB_BULK_OUT,
- 0 ) ) != 0 )
- continue;
-
- /* Record data interface and alternate setting */
- usbnet->data = data;
- usbnet->alternate = alt;
- DBGC ( usbnet, "USBNET %s found data interface %d",
- usbnet->func->name, data );
- if ( alt )
- DBGC ( usbnet, " using alternate %d", alt );
- DBGC ( usbnet, "\n" );
- return 0;
- }
- }
-
- DBGC ( usbnet, "USBNET %s found no data interface\n",
- usbnet->func->name );
- return -ENOENT;
-}
-
-/**
- * Describe USB network device interfaces
- *
- * @v usbnet USB network device
- * @v config Configuration descriptor
- * @ret rc Return status code
- */
-int usbnet_describe ( struct usbnet_device *usbnet,
- struct usb_configuration_descriptor *config ) {
- int rc;
-
- /* Describe communications interface */
- if ( ( rc = usbnet_comms_describe ( usbnet, config ) ) != 0 )
- return rc;
-
- /* Describe data interface */
- if ( ( rc = usbnet_data_describe ( usbnet, config ) ) != 0 )
- return rc;
-
- return 0;
-}