freebsd-skq/sys/dev/usb/template/usb_template_msc.c

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

/*-
 * Copyright (c) 2008 Hans Petter Selasky <hselasky@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * This file contains the USB templates for an USB Mass Storage Device.
 */

#include <dev/usb/usb.h>
#include <dev/usb/usb_mfunc.h>

#include <dev/usb/usb_core.h>

#include <dev/usb/template/usb_template.h>

enum {
	STRING_LANG_INDEX,
	STRING_MSC_DATA_INDEX,
	STRING_MSC_CONFIG_INDEX,
	STRING_MSC_VENDOR_INDEX,
	STRING_MSC_PRODUCT_INDEX,
	STRING_MSC_SERIAL_INDEX,
	STRING_MSC_MAX,
};

#define	STRING_LANG \
  0x09, 0x04,				/* American English */

#define	STRING_MSC_DATA	\
  'U', 0, 'S', 0, 'B', 0, ' ', 0, \
  'M', 0, 'a', 0, 's', 0, 's', 0, \
  ' ', 0, 'S', 0, 't', 0, 'o', 0, \
  'r', 0, 'a', 0, 'g', 0, 'e', 0, \
  ' ', 0, 'I', 0, 'n', 0, 't', 0, \
  'e', 0, 'r', 0, 'f', 0, 'a', 0, \
  'c', 0, 'e', 0,

#define	STRING_MSC_CONFIG \
  'D', 0, 'e', 0, 'f', 0, 'a', 0, \
  'u', 0, 'l', 0, 't', 0, ' ', 0, \
  'c', 0, 'o', 0, 'n', 0, 'f', 0, \
  'i', 0, 'g', 0,

#define	STRING_MSC_VENDOR \
  'F', 0, 'r', 0, 'e', 0, 'e', 0, \
  'B', 0, 'S', 0, 'D', 0, ' ', 0, \
  'f', 0, 'o', 0, 'u', 0, 'n', 0, \
  'd', 0, 'a', 0, 't', 0, 'i', 0, \
  'o', 0, 'n', 0,

#define	STRING_MSC_PRODUCT \
  'U', 0, 'S', 0, 'B', 0, ' ', 0, \
  'M', 0, 'e', 0, 'm', 0, 'o', 0, \
  'r', 0, 'y', 0, ' ', 0, 'S', 0, \
  't', 0, 'i', 0, 'c', 0, 'k', 0

#define	STRING_MSC_SERIAL \
  'M', 0, 'a', 0, 'r', 0, 'c', 0, \
  'h', 0, ' ', 0, '2', 0, '0', 0, \
  '0', 0, '8', 0,

/* make the real string descriptors */

USB_MAKE_STRING_DESC(STRING_LANG, string_lang);
USB_MAKE_STRING_DESC(STRING_MSC_DATA, string_msc_data);
USB_MAKE_STRING_DESC(STRING_MSC_CONFIG, string_msc_config);
USB_MAKE_STRING_DESC(STRING_MSC_VENDOR, string_msc_vendor);
USB_MAKE_STRING_DESC(STRING_MSC_PRODUCT, string_msc_product);
USB_MAKE_STRING_DESC(STRING_MSC_SERIAL, string_msc_serial);

/* prototypes */

static usb2_temp_get_string_desc_t msc_get_string_desc;

static const struct usb2_temp_packet_size bulk_mps = {
	.mps[USB_SPEED_FULL] = 64,
	.mps[USB_SPEED_HIGH] = 512,
};

static const struct usb2_temp_endpoint_desc bulk_in_ep = {
	.pPacketSize = &bulk_mps,
#ifdef USB_HIP_IN_EP_0
	.bEndpointAddress = USB_HIP_IN_EP_0,
#else
	.bEndpointAddress = UE_DIR_IN,
#endif
	.bmAttributes = UE_BULK,
};

static const struct usb2_temp_endpoint_desc bulk_out_ep = {
	.pPacketSize = &bulk_mps,
#ifdef USB_HIP_OUT_EP_0
	.bEndpointAddress = USB_HIP_OUT_EP_0,
#else
	.bEndpointAddress = UE_DIR_OUT,
#endif
	.bmAttributes = UE_BULK,
};

static const struct usb2_temp_endpoint_desc *msc_data_endpoints[] = {
	&bulk_in_ep,
	&bulk_out_ep,
	NULL,
};

static const struct usb2_temp_interface_desc msc_data_interface = {
	.ppEndpoints = msc_data_endpoints,
	.bInterfaceClass = UICLASS_MASS,
	.bInterfaceSubClass = UISUBCLASS_SCSI,
	.bInterfaceProtocol = UIPROTO_MASS_BBB,
	.iInterface = STRING_MSC_DATA_INDEX,
};

static const struct usb2_temp_interface_desc *msc_interfaces[] = {
	&msc_data_interface,
	NULL,
};

static const struct usb2_temp_config_desc msc_config_desc = {
	.ppIfaceDesc = msc_interfaces,
	.bmAttributes = UC_BUS_POWERED,
	.bMaxPower = 25,		/* 50 mA */
	.iConfiguration = STRING_MSC_CONFIG_INDEX,
};

static const struct usb2_temp_config_desc *msc_configs[] = {
	&msc_config_desc,
	NULL,
};

const struct usb2_temp_device_desc usb2_template_msc = {
	.getStringDesc = &msc_get_string_desc,
	.ppConfigDesc = msc_configs,
	.idVendor = 0x0001,
	.idProduct = 0x0001,
	.bcdDevice = 0x0100,
	.bDeviceClass = UDCLASS_COMM,
	.bDeviceSubClass = 0,
	.bDeviceProtocol = 0,
	.iManufacturer = STRING_MSC_VENDOR_INDEX,
	.iProduct = STRING_MSC_PRODUCT_INDEX,
	.iSerialNumber = STRING_MSC_SERIAL_INDEX,
};

/*------------------------------------------------------------------------*
 *	msc_get_string_desc
 *
 * Return values:
 * NULL: Failure. No such string.
 * Else: Success. Pointer to string descriptor is returned.
 *------------------------------------------------------------------------*/
static const void *
msc_get_string_desc(uint16_t lang_id, uint8_t string_index)
{
	static const void *ptr[STRING_MSC_MAX] = {
		[STRING_LANG_INDEX] = &string_lang,
		[STRING_MSC_DATA_INDEX] = &string_msc_data,
		[STRING_MSC_CONFIG_INDEX] = &string_msc_config,
		[STRING_MSC_VENDOR_INDEX] = &string_msc_vendor,
		[STRING_MSC_PRODUCT_INDEX] = &string_msc_product,
		[STRING_MSC_SERIAL_INDEX] = &string_msc_serial,
	};

	if (string_index == 0) {
		return (&string_lang);
	}
	if (lang_id != 0x0409) {
		return (NULL);
	}
	if (string_index < STRING_MSC_MAX) {
		return (ptr[string_index]);
	}
	return (NULL);
}