1 files changed, 0 insertions, 547 deletions

diff --git a/qemu/roms/ipxe/src/drivers/usb/usbhub.c b/qemu/roms/ipxe/src/drivers/usb/usbhub.c
deleted file mode 100644
index bf2a20005..000000000
--- a/qemu/roms/ipxe/src/drivers/usb/usbhub.c
+++ /dev/null
@@ -1,547 +0,0 @@
-/*
- * Copyright (C) 2014 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 <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <assert.h>
-#include <byteswap.h>
-#include <ipxe/usb.h>
-#include "usbhub.h"
-
-/** @file
- *
- * USB hub driver
- *
- */
-
-/**
- * Refill interrupt ring
- *
- * @v hubdev		Hub device
- */
-static void hub_refill ( struct usb_hub_device *hubdev ) {
-	int rc;
-
-	/* Refill interrupt endpoint */
-	if ( ( rc = usb_refill ( &hubdev->intr ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s could not refill interrupt: %s\n",
-		       hubdev->name, strerror ( rc ) );
-		/* Continue attempting to refill */
-		return;
-	}
-
-	/* Stop refill process */
-	process_del ( &hubdev->refill );
-}
-
-/** Refill process descriptor */
-static struct process_descriptor hub_refill_desc =
-	PROC_DESC ( struct usb_hub_device, refill, hub_refill );
-
-/**
- * Complete interrupt transfer
- *
- * @v ep		USB endpoint
- * @v iobuf		I/O buffer
- * @v rc		Completion status code
- */
-static void hub_complete ( struct usb_endpoint *ep,
-			   struct io_buffer *iobuf, int rc ) {
-	struct usb_hub_device *hubdev =
-		container_of ( ep, struct usb_hub_device, intr );
-	struct usb_hub *hub = hubdev->hub;
-	uint8_t *data = iobuf->data;
-	unsigned int bits = ( 8 * iob_len ( iobuf ) );
-	unsigned int i;
-
-	/* Ignore packets cancelled when the endpoint closes */
-	if ( ! ep->open )
-		goto done;
-
-	/* Ignore packets with errors */
-	if ( rc != 0 ) {
-		DBGC ( hubdev, "HUB %s interrupt failed: %s\n",
-		       hubdev->name, strerror ( rc ) );
-		DBGC_HDA ( hubdev, 0, iobuf->data, iob_len ( iobuf ) );
-		goto done;
-	}
-
-	/* Report any port status changes */
-	for ( i = 1 ; i <= hub->ports ; i++ ) {
-
-		/* Sanity check */
-		if ( i > bits ) {
-			DBGC ( hubdev, "HUB %s underlength interrupt:\n",
-			       hubdev->name );
-			DBGC_HDA ( hubdev, 0, iobuf->data, iob_len ( iobuf ) );
-			goto done;
-		}
-
-		/* Report port status change if applicable */
-		if ( data[ i / 8 ] & ( 1 << ( i % 8 ) ) ) {
-			DBGC2 ( hubdev, "HUB %s port %d status changed\n",
-				hubdev->name, i );
-			usb_port_changed ( usb_port ( hub, i ) );
-		}
-	}
-
- done:
-	/* Start refill process */
-	process_add ( &hubdev->refill );
-}
-
-/** Interrupt endpoint operations */
-static struct usb_endpoint_driver_operations usb_hub_intr_operations = {
-	.complete = hub_complete,
-};
-
-/**
- * Open hub
- *
- * @v hub		USB hub
- * @ret rc		Return status code
- */
-static int hub_open ( struct usb_hub *hub ) {
-	struct usb_hub_device *hubdev = usb_hub_get_drvdata ( hub );
-	struct usb_device *usb = hubdev->usb;
-	unsigned int i;
-	int rc;
-
-	/* Ensure ports are powered */
-	for ( i = 1 ; i <= hub->ports ; i++ ) {
-		if ( ( rc = usb_hub_set_port_feature ( usb, i,
-						       USB_HUB_PORT_POWER,
-						       0 ) ) != 0 ) {
-			DBGC ( hubdev, "HUB %s port %d could not apply power: "
-			       "%s\n", hubdev->name, i, strerror ( rc ) );
-			goto err_power;
-		}
-	}
-
-	/* Open interrupt endpoint */
-	if ( ( rc = usb_endpoint_open ( &hubdev->intr ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s could not register interrupt: %s\n",
-		       hubdev->name, strerror ( rc ) );
-		goto err_open;
-	}
-
-	/* Start refill process */
-	process_add ( &hubdev->refill );
-
-	/* Refill interrupt ring */
-	hub_refill ( hubdev );
-
-	return 0;
-
-	usb_endpoint_close ( &hubdev->intr );
- err_open:
- err_power:
-	return rc;
-}
-
-/**
- * Close hub
- *
- * @v hub		USB hub
- */
-static void hub_close ( struct usb_hub *hub ) {
-	struct usb_hub_device *hubdev = usb_hub_get_drvdata ( hub );
-
-	/* Close interrupt endpoint */
-	usb_endpoint_close ( &hubdev->intr );
-
-	/* Stop refill process */
-	process_del ( &hubdev->refill );
-}
-
-/**
- * Enable port
- *
- * @v hub		USB hub
- * @v port		USB port
- * @ret rc		Return status code
- */
-static int hub_enable ( struct usb_hub *hub, struct usb_port *port ) {
-	struct usb_hub_device *hubdev = usb_hub_get_drvdata ( hub );
-	struct usb_device *usb = hubdev->usb;
-	struct usb_hub_port_status status;
-	unsigned int current;
-	unsigned int i;
-	int rc;
-
-	/* Initiate reset if applicable */
-	if ( ( hub->protocol < USB_PROTO_3_0 ) &&
-	     ( ( rc = usb_hub_set_port_feature ( usb, port->address,
-						 USB_HUB_PORT_RESET, 0 ) )!=0)){
-		DBGC ( hubdev, "HUB %s port %d could not initiate reset: %s\n",
-		       hubdev->name, port->address, strerror ( rc ) );
-		return rc;
-	}
-
-	/* Wait for port to become enabled */
-	for ( i = 0 ; i < USB_HUB_ENABLE_MAX_WAIT_MS ; i++ ) {
-
-		/* Check for port being enabled */
-		if ( ( rc = usb_hub_get_port_status ( usb, port->address,
-						      &status ) ) != 0 ) {
-			DBGC ( hubdev, "HUB %s port %d could not get status: "
-			       "%s\n", hubdev->name, port->address,
-			       strerror ( rc ) );
-			return rc;
-		}
-		current = le16_to_cpu ( status.current );
-		if ( current & ( 1 << USB_HUB_PORT_ENABLE ) )
-			return 0;
-
-		/* Delay */
-		mdelay ( 1 );
-	}
-
-	DBGC ( hubdev, "HUB %s port %d timed out waiting for enable\n",
-	       hubdev->name, port->address );
-	return -ETIMEDOUT;
-}
-
-/**
- * Disable port
- *
- * @v hub		USB hub
- * @v port		USB port
- * @ret rc		Return status code
- */
-static int hub_disable ( struct usb_hub *hub, struct usb_port *port ) {
-	struct usb_hub_device *hubdev = usb_hub_get_drvdata ( hub );
-	struct usb_device *usb = hubdev->usb;
-	int rc;
-
-	/* Disable port */
-	if ( ( rc = usb_hub_clear_port_feature ( usb, port->address,
-						 USB_HUB_PORT_ENABLE, 0 ) )!=0){
-		DBGC ( hubdev, "HUB %s port %d could not disable: %s\n",
-		       hubdev->name, port->address, strerror ( rc ) );
-		return rc;
-	}
-
-	return 0;
-}
-
-/**
- * Clear port status change bits
- *
- * @v hubdev		USB hub device
- * @v port		Port number
- * @v changed		Port status change bits
- * @ret rc		Return status code
- */
-static int hub_clear_changes ( struct usb_hub_device *hubdev,
-			       unsigned int port, uint16_t changed ) {
-	struct usb_device *usb = hubdev->usb;
-	unsigned int bit;
-	unsigned int feature;
-	int rc;
-
-	/* Clear each set bit */
-	for ( bit = 0 ; bit < 16 ; bit++ ) {
-
-		/* Skip unset bits */
-		if ( ! ( changed & ( 1 << bit ) ) )
-			continue;
-
-		/* Skip unused features */
-		feature = USB_HUB_C_FEATURE ( bit );
-		if ( ! ( hubdev->features & ( 1 << feature ) ) )
-			continue;
-
-		/* Clear bit */
-		if ( ( rc = usb_hub_clear_port_feature ( usb, port,
-							 feature, 0 ) ) != 0 ) {
-			DBGC ( hubdev, "HUB %s port %d could not clear feature "
-			       "%d: %s\n", hubdev->name, port, feature,
-			       strerror ( rc ) );
-			return rc;
-		}
-	}
-
-	return 0;
-}
-
-/**
- * Update port speed
- *
- * @v hub		USB hub
- * @v port		USB port
- * @ret rc		Return status code
- */
-static int hub_speed ( struct usb_hub *hub, struct usb_port *port ) {
-	struct usb_hub_device *hubdev = usb_hub_get_drvdata ( hub );
-	struct usb_device *usb = hubdev->usb;
-	struct usb_hub_port_status status;
-	unsigned int current;
-	unsigned int changed;
-	int rc;
-
-	/* Get port status */
-	if ( ( rc = usb_hub_get_port_status ( usb, port->address,
-					      &status ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s port %d could not get status: %s\n",
-		       hubdev->name, port->address, strerror ( rc ) );
-		return rc;
-	}
-	current = le16_to_cpu ( status.current );
-	changed = le16_to_cpu ( status.changed );
-	DBGC2 ( hubdev, "HUB %s port %d status is %04x:%04x\n",
-		hubdev->name, port->address, changed, current );
-
-	/* Update port speed */
-	if ( current & ( 1 << USB_HUB_PORT_CONNECTION ) ) {
-		if ( hub->protocol >= USB_PROTO_3_0 ) {
-			port->speed = USB_SPEED_SUPER;
-		} else if ( current & ( 1 << USB_HUB_PORT_LOW_SPEED ) ) {
-			port->speed = USB_SPEED_LOW;
-		} else if ( current & ( 1 << USB_HUB_PORT_HIGH_SPEED ) ) {
-			port->speed = USB_SPEED_HIGH;
-		} else {
-			port->speed = USB_SPEED_FULL;
-		}
-	} else {
-		port->speed = USB_SPEED_NONE;
-	}
-
-	/* Record disconnections */
-	port->disconnected |= ( changed & ( 1 << USB_HUB_PORT_CONNECTION ) );
-
-	/* Clear port status change bits */
-	if ( ( rc = hub_clear_changes ( hubdev, port->address, changed ) ) != 0)
-		return rc;
-
-	return 0;
-}
-
-/**
- * Clear transaction translator buffer
- *
- * @v hub		USB hub
- * @v port		USB port
- * @v ep		USB endpoint
- * @ret rc		Return status code
- */
-static int hub_clear_tt ( struct usb_hub *hub, struct usb_port *port,
-			  struct usb_endpoint *ep ) {
-	struct usb_hub_device *hubdev = usb_hub_get_drvdata ( hub );
-	struct usb_device *usb = hubdev->usb;
-	int rc;
-
-	/* Clear transaction translator buffer.  All hubs must support
-	 * single-TT operation; we simplify our code by supporting
-	 * only this configuration.
-	 */
-	if ( ( rc = usb_hub_clear_tt_buffer ( usb, ep->usb->address,
-					      ep->address, ep->attributes,
-					      USB_HUB_TT_SINGLE ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s port %d could not clear TT buffer: %s\n",
-		       hubdev->name, port->address, strerror ( rc ) );
-		return rc;
-	}
-
-	return 0;
-}
-
-/** USB hub operations */
-static struct usb_hub_driver_operations hub_operations = {
-	.open = hub_open,
-	.close = hub_close,
-	.enable = hub_enable,
-	.disable = hub_disable,
-	.speed = hub_speed,
-	.clear_tt = hub_clear_tt,
-};
-
-/**
- * Probe USB hub
- *
- * @v func		USB function
- * @v config		Configuration descriptor
- * @ret rc		Return status code
- */
-static int hub_probe ( struct usb_function *func,
-		       struct usb_configuration_descriptor *config ) {
-	struct usb_device *usb = func->usb;
-	struct usb_bus *bus = usb->port->hub->bus;
-	struct usb_hub_device *hubdev;
-	struct usb_interface_descriptor *interface;
-	union usb_hub_descriptor desc;
-	unsigned int depth;
-	unsigned int ports;
-	int enhanced;
-	int rc;
-
-	/* Allocate and initialise structure */
-	hubdev = zalloc ( sizeof ( *hubdev ) );
-	if ( ! hubdev ) {
-		rc = -ENOMEM;
-		goto err_alloc;
-	}
-	enhanced = ( usb->port->protocol >= USB_PROTO_3_0 );
-	hubdev->name = func->name;
-	hubdev->usb = usb;
-	hubdev->features =
-		( enhanced ? USB_HUB_FEATURES_ENHANCED : USB_HUB_FEATURES );
-	usb_endpoint_init ( &hubdev->intr, usb, &usb_hub_intr_operations );
-	usb_refill_init ( &hubdev->intr, 0, USB_HUB_INTR_FILL );
-	process_init_stopped ( &hubdev->refill, &hub_refill_desc, NULL );
-
-	/* Locate hub interface descriptor */
-	interface = usb_interface_descriptor ( config, func->interface[0], 0 );
-	if ( ! interface ) {
-		DBGC ( hubdev, "HUB %s has no interface descriptor\n",
-		       hubdev->name );
-		rc = -EINVAL;
-		goto err_interface;
-	}
-
-	/* Locate interrupt endpoint descriptor */
-	if ( ( rc = usb_endpoint_described ( &hubdev->intr, config, interface,
-					     USB_INTERRUPT_IN, 0 ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s could not describe interrupt endpoint: "
-		       "%s\n", hubdev->name, strerror ( rc ) );
-		goto err_endpoint;
-	}
-
-	/* Set hub depth */
-	depth = usb_depth ( usb );
-	if ( enhanced ) {
-		if ( ( rc = usb_hub_set_hub_depth ( usb, depth ) ) != 0 ) {
-			DBGC ( hubdev, "HUB %s could not set hub depth to %d: "
-			       "%s\n", hubdev->name, depth, strerror ( rc ) );
-			goto err_set_hub_depth;
-		}
-	}
-
-	/* Get hub descriptor */
-	if ( ( rc = usb_hub_get_descriptor ( usb, enhanced, &desc ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s could not get hub descriptor: %s\n",
-		       hubdev->name, strerror ( rc ) );
-		goto err_hub_descriptor;
-	}
-	ports = desc.basic.ports;
-	DBGC ( hubdev, "HUB %s has %d ports at depth %d%s\n", hubdev->name,
-	       ports, depth, ( enhanced ? " (enhanced)" : "" ) );
-
-	/* Allocate hub */
-	hubdev->hub = alloc_usb_hub ( bus, usb, ports, &hub_operations );
-	if ( ! hubdev->hub ) {
-		rc = -ENOMEM;
-		goto err_alloc_hub;
-	}
-	usb_hub_set_drvdata ( hubdev->hub, hubdev );
-
-	/* Register hub */
-	if ( ( rc = register_usb_hub ( hubdev->hub ) ) != 0 ) {
-		DBGC ( hubdev, "HUB %s could not register: %s\n",
-		       hubdev->name, strerror ( rc ) );
-		goto err_register_hub;
-	}
-
-	usb_func_set_drvdata ( func, hubdev );
-	return 0;
-
-	unregister_usb_hub ( hubdev->hub );
- err_register_hub:
-	free_usb_hub ( hubdev->hub );
- err_alloc_hub:
- err_hub_descriptor:
- err_set_hub_depth:
- err_endpoint:
- err_interface:
-	free ( hubdev );
- err_alloc:
-	return rc;
-}
-
-/**
- * Remove USB hub
- *
- * @v func		USB function
- * @ret rc		Return status code
- */
-static void hub_remove ( struct usb_function *func ) {
-	struct usb_hub_device *hubdev = usb_func_get_drvdata ( func );
-	struct usb_hub *hub = hubdev->hub;
-	struct usb_device *usb = hubdev->usb;
-	struct usb_port *port;
-	unsigned int i;
-
-	/* If hub has been unplugged, mark all ports as unplugged */
-	if ( usb->port->speed == USB_SPEED_NONE ) {
-		for ( i = 1 ; i <= hub->ports ; i++ ) {
-			port = usb_port ( hub, i );
-			port->speed = USB_SPEED_NONE;
-		}
-	}
-
-	/* Unregister hub */
-	unregister_usb_hub ( hubdev->hub );
-	assert ( ! process_running ( &hubdev->refill ) );
-
-	/* Free hub */
-	free_usb_hub ( hubdev->hub );
-
-	/* Free hub device */
-	free ( hubdev );
-}
-
-/** USB hub device IDs */
-static struct usb_device_id hub_ids[] = {
-	{
-		.name = "hub-1",
-		.vendor = USB_ANY_ID,
-		.product = USB_ANY_ID,
-		.class = {
-			.class = USB_CLASS_HUB,
-			.subclass = 0,
-			.protocol = 0,
-		},
-	},
-	{
-		.name = "hub-2",
-		.vendor = USB_ANY_ID,
-		.product = USB_ANY_ID,
-		.class = {
-			.class = USB_CLASS_HUB,
-			.subclass = 0,
-			.protocol = 1,
-		},
-	},
-};
-
-/** USB hub driver */
-struct usb_driver usb_hub_driver __usb_driver = {
-	.ids = hub_ids,
-	.id_count = ( sizeof ( hub_ids ) / sizeof ( hub_ids[0] ) ),
-	.probe = hub_probe,
-	.remove = hub_remove,
-};