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/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __LINUX_USB_NV_USB_BULK_H
#define __LINUX_USB_NV_USB_BULK_H
#define NVUSB_BULK_WRITE 0X2000
#define NVUSB_BULK_READ 0X2001
/* command block wrapper */
struct nvusb_cb_wrap {
__le32 Signature;
__u32 Tag;
__le32 DataTransferLength;
__u8 Flags;
__u8 Length;
__u8 CDB[16];
};
#define US_BULK_CB_WRAP_LEN 31
#define US_BULK_CB_SIGN 0x43425355
#define US_BULK_FLAG_IN (1 << 7)
#define US_BULK_FLAG_OUT 0
/* command status wrapper */
struct nvusb_cs_wrap {
__le32 Signature;
__u32 Tag;
__le32 Residue;
__u8 Status;
};
#define US_BULK_CS_WRAP_LEN 13
#define US_BULK_CS_SIGN 0x53425355
#define US_BULK_STAT_OK 0
#define US_BULK_STAT_FAIL 1
#define US_BULK_STAT_BAD_DATA 2
struct bulk_data {
struct nv_usb *dev;
__u8 data_direction;
__u8 sub_cmd_length;
__u8 *sub_cmd;
__u32 length;
__u8 *buf;
__u8 write_char;
__u32 data_transfer_time;
__u32 g_data_transfer_time;
};
struct user_bulk_data {
__u8 sub_cmd_length;
__u8 __user *sub_cmd;
__u32 length;
__u8 __user *buf;
__u8 write_char;
__u32 data_transfer_time;
__u32 g_data_transfer_time;
};
/* Structure to hold all of our device specific stuff */
struct nv_usb {
/* the usb device for this device */
struct usb_device *udev;
/* the interface for this device */
struct usb_interface *interface;
/* in case we need to retract our submissions */
struct usb_anchor submitted;
/* the size of the receive buffer */
size_t bulk_in_size;
/* the address of the bulk in endpoint */
__u8 bulk_in_endpointAddr;
/* the address of the bulk out endpoint */
__u8 bulk_out_endpointAddr;
__u32 tag;
struct kref kref;
struct mutex mutex;
};
#define to_nv_usb_dev(d) container_of(d, struct nv_usb, kref)
#endif
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