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Diffstat (limited to 'drivers/usb/gadget/mass_storage.c')
| -rw-r--r-- | drivers/usb/gadget/mass_storage.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c deleted file mode 100644 index 080e577773d5..000000000000 --- a/drivers/usb/gadget/mass_storage.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * mass_storage.c -- Mass Storage USB Gadget - * - * Copyright (C) 2003-2008 Alan Stern - * Copyright (C) 2009 Samsung Electronics - * Author: Michal Nazarewicz <mina86@mina86.com> - * All rights reserved. - * - * 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. - */ - - -/* - * The Mass Storage Gadget acts as a USB Mass Storage device, - * appearing to the host as a disk drive or as a CD-ROM drive. In - * addition to providing an example of a genuinely useful gadget - * driver for a USB device, it also illustrates a technique of - * double-buffering for increased throughput. Last but not least, it - * gives an easy way to probe the behavior of the Mass Storage drivers - * in a USB host. - * - * Since this file serves only administrative purposes and all the - * business logic is implemented in f_mass_storage.* file. Read - * comments in this file for more detailed description. - */ - - -#include <linux/kernel.h> -#include <linux/usb/ch9.h> -#include <linux/module.h> - -/*-------------------------------------------------------------------------*/ - -#define DRIVER_DESC "Mass Storage Gadget" -#define DRIVER_VERSION "2009/09/11" - -/*-------------------------------------------------------------------------*/ - -/* - * kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "f_mass_storage.c" - -/*-------------------------------------------------------------------------*/ -USB_GADGET_COMPOSITE_OPTIONS(); - -static struct usb_device_descriptor msg_device_desc = { - .bLength = sizeof msg_device_desc, - .bDescriptorType = USB_DT_DEVICE, - - .bcdUSB = cpu_to_le16(0x0200), - .bDeviceClass = USB_CLASS_PER_INTERFACE, - - /* Vendor and product id can be overridden by module parameters. */ - .idVendor = cpu_to_le16(FSG_VENDOR_ID), - .idProduct = cpu_to_le16(FSG_PRODUCT_ID), - .bNumConfigurations = 1, -}; - -static struct usb_otg_descriptor otg_descriptor = { - .bLength = sizeof otg_descriptor, - .bDescriptorType = USB_DT_OTG, - - /* - * REVISIT SRP-only hardware is possible, although - * it would not be called "OTG" ... - */ - .bmAttributes = USB_OTG_SRP | USB_OTG_HNP, -}; - -static const struct usb_descriptor_header *otg_desc[] = { - (struct usb_descriptor_header *) &otg_descriptor, - NULL, -}; - -static struct usb_string strings_dev[] = { - [USB_GADGET_MANUFACTURER_IDX].s = "", - [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, - [USB_GADGET_SERIAL_IDX].s = "", - { } /* end of list */ -}; - -static struct usb_gadget_strings stringtab_dev = { - .language = 0x0409, /* en-us */ - .strings = strings_dev, -}; - -static struct usb_gadget_strings *dev_strings[] = { - &stringtab_dev, - NULL, -}; - -/****************************** Configurations ******************************/ - -static struct fsg_module_parameters mod_data = { - .stall = 1 -}; -FSG_MODULE_PARAMETERS(/* no prefix */, mod_data); - -static unsigned long msg_registered; -static void msg_cleanup(void); - -static int msg_thread_exits(struct fsg_common *common) -{ - msg_cleanup(); - return 0; -} - -static int __init msg_do_config(struct usb_configuration *c) -{ - static const struct fsg_operations ops = { - .thread_exits = msg_thread_exits, - }; - static struct fsg_common common; - - struct fsg_common *retp; - struct fsg_config config; - int ret; - - if (gadget_is_otg(c->cdev->gadget)) { - c->descriptors = otg_desc; - c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; - } - - fsg_config_from_params(&config, &mod_data); - config.ops = &ops; - - retp = fsg_common_init(&common, c->cdev, &config); - if (IS_ERR(retp)) - return PTR_ERR(retp); - - ret = fsg_bind_config(c->cdev, c, &common); - fsg_common_put(&common); - return ret; -} - -static struct usb_configuration msg_config_driver = { - .label = "Linux File-Backed Storage", - .bConfigurationValue = 1, - .bmAttributes = USB_CONFIG_ATT_SELFPOWER, -}; - - -/****************************** Gadget Bind ******************************/ - -static int __init msg_bind(struct usb_composite_dev *cdev) -{ - int status; - - status = usb_string_ids_tab(cdev, strings_dev); - if (status < 0) - return status; - msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; - - status = usb_add_config(cdev, &msg_config_driver, msg_do_config); - if (status < 0) - return status; - usb_composite_overwrite_options(cdev, &coverwrite); - dev_info(&cdev->gadget->dev, - DRIVER_DESC ", version: " DRIVER_VERSION "\n"); - set_bit(0, &msg_registered); - return 0; -} - - -/****************************** Some noise ******************************/ - -static __refdata struct usb_composite_driver msg_driver = { - .name = "g_mass_storage", - .dev = &msg_device_desc, - .max_speed = USB_SPEED_SUPER, - .needs_serial = 1, - .strings = dev_strings, - .bind = msg_bind, -}; - -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_AUTHOR("Michal Nazarewicz"); -MODULE_LICENSE("GPL"); - -static int __init msg_init(void) -{ - return usb_composite_probe(&msg_driver); -} -module_init(msg_init); - -static void msg_cleanup(void) -{ - if (test_and_clear_bit(0, &msg_registered)) - usb_composite_unregister(&msg_driver); -} -module_exit(msg_cleanup); |