1 files changed, 0 insertions, 619 deletions

diff --git a/drivers/usb/gadget/ep0.c b/drivers/usb/gadget/ep0.c
deleted file mode 100644
index 8c7fc17c2ea..00000000000
--- a/drivers/usb/gadget/ep0.c
+++ /dev/null
@@ -1,619 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2003
- * Gerry Hamel, geh@ti.com, Texas Instruments
- *
- * (C) Copyright 2006
- * Bryan O'Donoghue, deckard@CodeHermit.ie
- *
- * Based on
- * linux/drivers/usbd/ep0.c
- *
- * Copyright (c) 2000, 2001, 2002 Lineo
- * Copyright (c) 2001 Hewlett Packard
- *
- * By:
- *	Stuart Lynne <sl@lineo.com>,
- *	Tom Rushworth <tbr@lineo.com>,
- *	Bruce Balden <balden@lineo.com>
- */
-
-/*
- * This is the builtin ep0 control function. It implements all required functionality
- * for responding to control requests (SETUP packets).
- *
- * XXX
- *
- * Currently we do not pass any SETUP packets (or other) to the configured
- * function driver. This may need to change.
- *
- * XXX
- *
- * As alluded to above, a simple callback cdc_recv_setup has been implemented
- * in the usb_device data structure to facilicate passing
- * Common Device Class packets to a function driver.
- *
- * XXX
- */
-
-#include <serial.h>
-#include <usbdevice.h>
-
-#if 0
-#define dbg_ep0(lvl,fmt,args...) serial_printf("[%s] %s:%d: "fmt"\n",__FILE__,__FUNCTION__,__LINE__,##args)
-#else
-#define dbg_ep0(lvl,fmt,args...)
-#endif
-
-__maybe_unused static char *usbd_device_descriptors[] = {
-	"UNKNOWN",		/* 0 */
-	"DEVICE",		/* 1 */
-	"CONFIG",		/* 2 */
-	"STRING",		/* 3 */
-	"INTERFACE",		/* 4 */
-	"ENDPOINT",		/* 5 */
-	"DEVICE QUALIFIER",	/* 6 */
-	"OTHER SPEED",		/* 7 */
-	"INTERFACE POWER",	/* 8 */
-};
-
-#define USBD_DEVICE_DESCRIPTORS(x) (((unsigned int)x <= USB_DESCRIPTOR_TYPE_INTERFACE_POWER) ? \
-		usbd_device_descriptors[x] : "UNKNOWN")
-
-__maybe_unused static char *usbd_device_states[] = {
-	"STATE_INIT",
-	"STATE_CREATED",
-	"STATE_ATTACHED",
-	"STATE_POWERED",
-	"STATE_DEFAULT",
-	"STATE_ADDRESSED",
-	"STATE_CONFIGURED",
-	"STATE_UNKNOWN",
-};
-
-#define USBD_DEVICE_STATE(x) (((unsigned int)x <= STATE_UNKNOWN) ? usbd_device_states[x] : "UNKNOWN")
-
-__maybe_unused static char *usbd_device_requests[] = {
-	"GET STATUS",		/* 0 */
-	"CLEAR FEATURE",	/* 1 */
-	"RESERVED",		/* 2 */
-	"SET FEATURE",		/* 3 */
-	"RESERVED",		/* 4 */
-	"SET ADDRESS",		/* 5 */
-	"GET DESCRIPTOR",	/* 6 */
-	"SET DESCRIPTOR",	/* 7 */
-	"GET CONFIGURATION",	/* 8 */
-	"SET CONFIGURATION",	/* 9 */
-	"GET INTERFACE",	/* 10 */
-	"SET INTERFACE",	/* 11 */
-	"SYNC FRAME",		/* 12 */
-};
-
-#define USBD_DEVICE_REQUESTS(x) (((unsigned int)x <= USB_REQ_SYNCH_FRAME) ? usbd_device_requests[x] : "UNKNOWN")
-
-/* EP0 Configuration Set ********************************************************************* */
-
-/**
- * ep0_get_status - fill in URB data with appropriate status
- * @device:
- * @urb:
- * @index:
- * @requesttype:
- *
- */
-static int ep0_get_status (struct usb_device_instance *device,
-			   struct urb *urb, int index, int requesttype)
-{
-	char *cp;
-
-	urb->actual_length = 2;
-	cp = (char*)urb->buffer;
-	cp[0] = cp[1] = 0;
-
-	switch (requesttype) {
-	case USB_REQ_RECIPIENT_DEVICE:
-		cp[0] = USB_STATUS_SELFPOWERED;
-		break;
-	case USB_REQ_RECIPIENT_INTERFACE:
-		break;
-	case USB_REQ_RECIPIENT_ENDPOINT:
-		cp[0] = usbd_endpoint_halted (device, index);
-		break;
-	case USB_REQ_RECIPIENT_OTHER:
-		urb->actual_length = 0;
-	default:
-		break;
-	}
-	dbg_ep0 (2, "%02x %02x", cp[0], cp[1]);
-	return 0;
-}
-
-/**
- * ep0_get_one
- * @device:
- * @urb:
- * @result:
- *
- * Set a single byte value in the urb send buffer. Return non-zero to signal
- * a request error.
- */
-static int ep0_get_one (struct usb_device_instance *device, struct urb *urb,
-			__u8 result)
-{
-	urb->actual_length = 1;	/* XXX 2? */
-	((char *) urb->buffer)[0] = result;
-	return 0;
-}
-
-/**
- * copy_config
- * @urb: pointer to urb
- * @data: pointer to configuration data
- * @length: length of data
- *
- * Copy configuration data to urb transfer buffer if there is room for it.
- */
-void copy_config (struct urb *urb, void *data, int max_length,
-			 int max_buf)
-{
-	int available;
-	int length;
-
-	/*dbg_ep0(3, "-> actual: %d buf: %d max_buf: %d max_length: %d data: %p", */
-	/*        urb->actual_length, urb->buffer_length, max_buf, max_length, data); */
-
-	if (!data) {
-		dbg_ep0 (1, "data is NULL");
-		return;
-	}
-	length = max_length;
-
-	if (length > max_length) {
-		dbg_ep0 (1, "length: %d >= max_length: %d", length,
-			 max_length);
-		return;
-	}
-	/*dbg_ep0(1, "   actual: %d buf: %d max_buf: %d max_length: %d length: %d", */
-	/*        urb->actual_length, urb->buffer_length, max_buf, max_length, length); */
-
-	if ((available =
-	     /*urb->buffer_length */ max_buf - urb->actual_length) <= 0) {
-		return;
-	}
-	/*dbg_ep0(1, "actual: %d buf: %d max_buf: %d length: %d available: %d", */
-	/*        urb->actual_length, urb->buffer_length, max_buf, length, available); */
-
-	if (length > available) {
-		length = available;
-	}
-	/*dbg_ep0(1, "actual: %d buf: %d max_buf: %d length: %d available: %d", */
-	/*        urb->actual_length, urb->buffer_length, max_buf, length, available); */
-
-	memcpy (urb->buffer + urb->actual_length, data, length);
-	urb->actual_length += length;
-
-	dbg_ep0 (3,
-		 "copy_config: <- actual: %d buf: %d max_buf: %d max_length: %d available: %d",
-		 urb->actual_length, urb->buffer_length, max_buf, max_length,
-		 available);
-}
-
-/**
- * ep0_get_descriptor
- * @device:
- * @urb:
- * @max:
- * @descriptor_type:
- * @index:
- *
- * Called by ep0_rx_process for a get descriptor device command. Determine what
- * descriptor is being requested, copy to send buffer. Return zero if ok to send,
- * return non-zero to signal a request error.
- */
-static int ep0_get_descriptor (struct usb_device_instance *device,
-			       struct urb *urb, int max, int descriptor_type,
-			       int index)
-{
-	int port = 0;		/* XXX compound device */
-
-	/*dbg_ep0(3, "max: %x type: %x index: %x", max, descriptor_type, index); */
-
-	if (!urb || !urb->buffer || !urb->buffer_length
-	    || (urb->buffer_length < 255)) {
-		dbg_ep0 (2, "invalid urb %p", urb);
-		return -1L;
-	}
-
-	/* setup tx urb */
-	urb->actual_length = 0;
-
-	dbg_ep0 (2, "%s", USBD_DEVICE_DESCRIPTORS (descriptor_type));
-
-	switch (descriptor_type) {
-	case USB_DESCRIPTOR_TYPE_DEVICE:
-		{
-			struct usb_device_descriptor *device_descriptor;
-			if (!
-			    (device_descriptor =
-			     usbd_device_device_descriptor (device, port))) {
-				return -1;
-			}
-			/* copy descriptor for this device */
-			copy_config (urb, device_descriptor,
-				     sizeof (struct usb_device_descriptor),
-				     max);
-
-			/* correct the correct control endpoint 0 max packet size into the descriptor */
-			device_descriptor =
-				(struct usb_device_descriptor *) urb->buffer;
-
-		}
-		dbg_ep0(3, "copied device configuration, actual_length: 0x%x", urb->actual_length);
-		break;
-
-	case USB_DESCRIPTOR_TYPE_CONFIGURATION:
-		{
-			struct usb_configuration_descriptor
-				*configuration_descriptor;
-			struct usb_device_descriptor *device_descriptor;
-			if (!
-			    (device_descriptor =
-			     usbd_device_device_descriptor (device, port))) {
-				return -1;
-			}
-			/*dbg_ep0(2, "%d %d", index, device_descriptor->bNumConfigurations); */
-			if (index >= device_descriptor->bNumConfigurations) {
-				dbg_ep0 (0, "index too large: %d >= %d", index,
-					 device_descriptor->
-					 bNumConfigurations);
-				return -1;
-			}
-
-			if (!
-			    (configuration_descriptor =
-			     usbd_device_configuration_descriptor (device,
-								   port,
-								   index))) {
-				dbg_ep0 (0,
-					 "usbd_device_configuration_descriptor failed: %d",
-					 index);
-				return -1;
-			}
-			dbg_ep0(0, "attempt to copy %d bytes to urb\n",cpu_to_le16(configuration_descriptor->wTotalLength));
-			copy_config (urb, configuration_descriptor,
-
-					cpu_to_le16(configuration_descriptor->wTotalLength),
-				     max);
-		}
-
-		break;
-
-	case USB_DESCRIPTOR_TYPE_STRING:
-		{
-			struct usb_string_descriptor *string_descriptor;
-			if (!(string_descriptor = usbd_get_string (index))) {
-				dbg_ep0(0, "Invalid string index %d\n", index);
-				return -1;
-			}
-			dbg_ep0(3, "string_descriptor: %p length %d", string_descriptor, string_descriptor->bLength);
-			copy_config (urb, string_descriptor, string_descriptor->bLength, max);
-		}
-		break;
-	case USB_DESCRIPTOR_TYPE_INTERFACE:
-		dbg_ep0(2, "USB_DESCRIPTOR_TYPE_INTERFACE - error not implemented\n");
-		return -1;
-	case USB_DESCRIPTOR_TYPE_ENDPOINT:
-		dbg_ep0(2, "USB_DESCRIPTOR_TYPE_ENDPOINT - error not implemented\n");
-		return -1;
-	case USB_DESCRIPTOR_TYPE_HID:
-		{
-			dbg_ep0(2, "USB_DESCRIPTOR_TYPE_HID - error not implemented\n");
-			return -1;	/* unsupported at this time */
-#if 0
-			int bNumInterface =
-				le16_to_cpu (urb->device_request.wIndex);
-			int bAlternateSetting = 0;
-			int class = 0;
-			struct usb_class_descriptor *class_descriptor;
-
-			if (!(class_descriptor =
-			      usbd_device_class_descriptor_index (device,
-								  port, 0,
-								  bNumInterface,
-								  bAlternateSetting,
-								  class))
-			    || class_descriptor->descriptor.hid.bDescriptorType != USB_DT_HID) {
-				dbg_ep0 (3, "[%d] interface is not HID",
-					 bNumInterface);
-				return -1;
-			}
-			/* copy descriptor for this class */
-			copy_config (urb, class_descriptor,
-				     class_descriptor->descriptor.hid.bLength,
-				     max);
-#endif
-		}
-		break;
-	case USB_DESCRIPTOR_TYPE_REPORT:
-		{
-			dbg_ep0(2, "USB_DESCRIPTOR_TYPE_REPORT - error not implemented\n");
-			return -1;	/* unsupported at this time */
-#if 0
-			int bNumInterface =
-				le16_to_cpu (urb->device_request.wIndex);
-			int bAlternateSetting = 0;
-			int class = 0;
-			struct usb_class_report_descriptor *report_descriptor;
-
-			if (!(report_descriptor =
-			      usbd_device_class_report_descriptor_index
-			      (device, port, 0, bNumInterface,
-			       bAlternateSetting, class))
-			    || report_descriptor->bDescriptorType !=
-			    USB_DT_REPORT) {
-				dbg_ep0 (3, "[%d] descriptor is not REPORT",
-					 bNumInterface);
-				return -1;
-			}
-			/* copy report descriptor for this class */
-			/*copy_config(urb, &report_descriptor->bData[0], report_descriptor->wLength, max); */
-			if (max - urb->actual_length > 0) {
-				int length =
-					min(report_descriptor->wLength,
-					     max - urb->actual_length);
-				memcpy (urb->buffer + urb->actual_length,
-					&report_descriptor->bData[0], length);
-				urb->actual_length += length;
-			}
-#endif
-		}
-		break;
-	case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER:
-		return -1;
-
-	default:
-		return -1;
-	}
-
-	dbg_ep0 (1, "urb: buffer: %p buffer_length: %2d actual_length: %2d tx_packetSize: %2d",
-		 urb->buffer, urb->buffer_length, urb->actual_length,
-		 device->bus->endpoint_array[0].tx_packetSize);
-/*
-    if ((urb->actual_length < max) && !(urb->actual_length % device->bus->endpoint_array[0].tx_packetSize)) {
-	dbg_ep0(0, "adding null byte");
-	urb->buffer[urb->actual_length++] = 0;
-	dbg_ep0(0, "urb: buffer_length: %2d actual_length: %2d packet size: %2d",
-		urb->buffer_length, urb->actual_length device->bus->endpoint_array[0].tx_packetSize);
-    }
-*/
-	return 0;
-
-}
-
-/**
- * ep0_recv_setup - called to indicate URB has been received
- * @urb: pointer to struct urb
- *
- * Check if this is a setup packet, process the device request, put results
- * back into the urb and return zero or non-zero to indicate success (DATA)
- * or failure (STALL).
- *
- */
-int ep0_recv_setup (struct urb *urb)
-{
-	/*struct usb_device_request *request = urb->buffer; */
-	/*struct usb_device_instance *device = urb->device; */
-
-	struct usb_device_request *request;
-	struct usb_device_instance *device;
-	int address;
-
-	dbg_ep0 (0, "entering ep0_recv_setup()");
-	if (!urb || !urb->device) {
-		dbg_ep0 (3, "invalid URB %p", urb);
-		return -1;
-	}
-
-	request = &urb->device_request;
-	device = urb->device;
-
-	dbg_ep0 (3, "urb: %p device: %p", urb, urb->device);
-
-	/*dbg_ep0(2, "-       -       -       -       -       -       -       -       -       -"); */
-
-	dbg_ep0 (2,
-		 "bmRequestType:%02x bRequest:%02x wValue:%04x wIndex:%04x wLength:%04x %s",
-		 request->bmRequestType, request->bRequest,
-		 le16_to_cpu (request->wValue), le16_to_cpu (request->wIndex),
-		 le16_to_cpu (request->wLength),
-		 USBD_DEVICE_REQUESTS (request->bRequest));
-
-	/* handle USB Standard Request (c.f. USB Spec table 9-2) */
-	if ((request->bmRequestType & USB_REQ_TYPE_MASK) != 0) {
-		if(device->device_state <= STATE_CONFIGURED){
-			/*	Attempt to handle a CDC specific request if we are
-			 *	in the configured state.
-			 */
-			return device->cdc_recv_setup(request,urb);
-		}
-		dbg_ep0 (1, "non standard request: %x",
-			 request->bmRequestType & USB_REQ_TYPE_MASK);
-		return -1;	/* Stall here */
-	}
-
-	switch (device->device_state) {
-	case STATE_CREATED:
-	case STATE_ATTACHED:
-	case STATE_POWERED:
-		/* It actually is important to allow requests in these states,
-		 * Windows will request descriptors before assigning an
-		 * address to the client.
-		 */
-
-		/*dbg_ep0 (1, "request %s not allowed in this state: %s", */
-		/*                USBD_DEVICE_REQUESTS(request->bRequest), */
-		/*                usbd_device_states[device->device_state]); */
-		/*return -1; */
-		break;
-
-	case STATE_INIT:
-	case STATE_DEFAULT:
-		switch (request->bRequest) {
-		case USB_REQ_GET_STATUS:
-		case USB_REQ_GET_INTERFACE:
-		case USB_REQ_SYNCH_FRAME:	/* XXX should never see this (?) */
-		case USB_REQ_CLEAR_FEATURE:
-		case USB_REQ_SET_FEATURE:
-		case USB_REQ_SET_DESCRIPTOR:
-			/* case USB_REQ_SET_CONFIGURATION: */
-		case USB_REQ_SET_INTERFACE:
-			dbg_ep0 (1,
-				 "request %s not allowed in DEFAULT state: %s",
-				 USBD_DEVICE_REQUESTS (request->bRequest),
-				 usbd_device_states[device->device_state]);
-			return -1;
-
-		case USB_REQ_SET_CONFIGURATION:
-		case USB_REQ_SET_ADDRESS:
-		case USB_REQ_GET_DESCRIPTOR:
-		case USB_REQ_GET_CONFIGURATION:
-			break;
-		}
-	case STATE_ADDRESSED:
-	case STATE_CONFIGURED:
-		break;
-	case STATE_UNKNOWN:
-		dbg_ep0 (1, "request %s not allowed in UNKNOWN state: %s",
-			 USBD_DEVICE_REQUESTS (request->bRequest),
-			 usbd_device_states[device->device_state]);
-		return -1;
-	}
-
-	/* handle all requests that return data (direction bit set on bm RequestType) */
-	if ((request->bmRequestType & USB_REQ_DIRECTION_MASK)) {
-
-		dbg_ep0 (3, "Device-to-Host");
-
-		switch (request->bRequest) {
-
-		case USB_REQ_GET_STATUS:
-			return ep0_get_status (device, urb, request->wIndex,
-					       request->bmRequestType &
-					       USB_REQ_RECIPIENT_MASK);
-
-		case USB_REQ_GET_DESCRIPTOR:
-			return ep0_get_descriptor (device, urb,
-						   le16_to_cpu (request->wLength),
-						   le16_to_cpu (request->wValue) >> 8,
-						   le16_to_cpu (request->wValue) & 0xff);
-
-		case USB_REQ_GET_CONFIGURATION:
-			dbg_ep0(2, "get config %d\n", device->configuration);
-			return ep0_get_one (device, urb,
-					    device->configuration);
-
-		case USB_REQ_GET_INTERFACE:
-			return ep0_get_one (device, urb, device->alternate);
-
-		case USB_REQ_SYNCH_FRAME:	/* XXX should never see this (?) */
-			return -1;
-
-		case USB_REQ_CLEAR_FEATURE:
-		case USB_REQ_SET_FEATURE:
-		case USB_REQ_SET_ADDRESS:
-		case USB_REQ_SET_DESCRIPTOR:
-		case USB_REQ_SET_CONFIGURATION:
-		case USB_REQ_SET_INTERFACE:
-			return -1;
-		}
-	}
-	/* handle the requests that do not return data */
-	else {
-
-		/*dbg_ep0(3, "Host-to-Device"); */
-		switch (request->bRequest) {
-
-		case USB_REQ_CLEAR_FEATURE:
-		case USB_REQ_SET_FEATURE:
-			dbg_ep0 (0, "Host-to-Device");
-			switch (request->
-				bmRequestType & USB_REQ_RECIPIENT_MASK) {
-			case USB_REQ_RECIPIENT_DEVICE:
-				/* XXX DEVICE_REMOTE_WAKEUP or TEST_MODE would be added here */
-				/* XXX fall through for now as we do not support either */
-			case USB_REQ_RECIPIENT_INTERFACE:
-			case USB_REQ_RECIPIENT_OTHER:
-				dbg_ep0 (0, "request %s not",
-					 USBD_DEVICE_REQUESTS (request->bRequest));
-			default:
-				return -1;
-
-			case USB_REQ_RECIPIENT_ENDPOINT:
-				dbg_ep0 (0, "ENDPOINT: %x", le16_to_cpu (request->wValue));
-				if (le16_to_cpu (request->wValue) == USB_ENDPOINT_HALT) {
-					/*return usbd_device_feature (device, le16_to_cpu (request->wIndex), */
-					/*                    request->bRequest == USB_REQ_SET_FEATURE); */
-					/* NEED TO IMPLEMENT THIS!!! */
-					return -1;
-				} else {
-					dbg_ep0 (1, "request %s bad wValue: %04x",
-						 USBD_DEVICE_REQUESTS
-						 (request->bRequest),
-						 le16_to_cpu (request->wValue));
-					return -1;
-				}
-			}
-
-		case USB_REQ_SET_ADDRESS:
-			/* check if this is a re-address, reset first if it is (this shouldn't be possible) */
-			if (device->device_state != STATE_DEFAULT) {
-				dbg_ep0 (1, "set_address: %02x state: %s",
-					 le16_to_cpu (request->wValue),
-					 usbd_device_states[device->device_state]);
-				return -1;
-			}
-			address = le16_to_cpu (request->wValue);
-			if ((address & 0x7f) != address) {
-				dbg_ep0 (1, "invalid address %04x %04x",
-					 address, address & 0x7f);
-				return -1;
-			}
-			device->address = address;
-
-			/*dbg_ep0(2, "address: %d %d %d", */
-			/*        request->wValue, le16_to_cpu(request->wValue), device->address); */
-
-			return 0;
-
-		case USB_REQ_SET_DESCRIPTOR:	/* XXX should we support this? */
-			dbg_ep0 (0, "set descriptor: NOT SUPPORTED");
-			return -1;
-
-		case USB_REQ_SET_CONFIGURATION:
-			/* c.f. 9.4.7 - the top half of wValue is reserved */
-			device->configuration = le16_to_cpu(request->wValue) & 0xff;
-
-			/* reset interface and alternate settings */
-			device->interface = device->alternate = 0;
-
-			/*dbg_ep0(2, "set configuration: %d", device->configuration); */
-			/*dbg_ep0(2, "DEVICE_CONFIGURED.. event?\n"); */
-			return 0;
-
-		case USB_REQ_SET_INTERFACE:
-			device->interface = le16_to_cpu (request->wIndex);
-			device->alternate = le16_to_cpu (request->wValue);
-			/*dbg_ep0(2, "set interface: %d alternate: %d", device->interface, device->alternate); */
-			dbg_ep0(2, "DEVICE_SET_INTERFACE.. event?\n");
-			return 0;
-
-		case USB_REQ_GET_STATUS:
-		case USB_REQ_GET_DESCRIPTOR:
-		case USB_REQ_GET_CONFIGURATION:
-		case USB_REQ_GET_INTERFACE:
-		case USB_REQ_SYNCH_FRAME:	/* XXX should never see this (?) */
-			return -1;
-		}
-	}
-	return -1;
-}