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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/usb/chipidea/udc.h
2 * udc.h - ChipIdea UDC structures
4 * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __DRIVERS_USB_CHIPIDEA_UDC_H
14 #define __DRIVERS_USB_CHIPIDEA_UDC_H
16 #include <linux/list.h>
18 #define CTRL_PAYLOAD_MAX 64
19 #define RX 0 /* similar to USB_DIR_OUT but can be used as an index */
20 #define TX 1 /* similar to USB_DIR_IN but can be used as an index */
22 /* DMA layout of transfer descriptors */
26 #define TD_TERMINATE BIT(0)
27 #define TD_ADDR_MASK (0xFFFFFFEUL << 5)
30 #define TD_STATUS (0x00FFUL << 0)
31 #define TD_STATUS_TR_ERR BIT(3)
32 #define TD_STATUS_DT_ERR BIT(5)
33 #define TD_STATUS_HALTED BIT(6)
34 #define TD_STATUS_ACTIVE BIT(7)
35 #define TD_MULTO (0x0003UL << 10)
36 #define TD_IOC BIT(15)
37 #define TD_TOTAL_BYTES (0x7FFFUL << 16)
40 #define TD_CURR_OFFSET (0x0FFFUL << 0)
41 #define TD_FRAME_NUM (0x07FFUL << 0)
42 #define TD_RESERVED_MASK (0x0FFFUL << 0)
43 } __attribute__ ((packed
, aligned(4)));
45 /* DMA layout of queue heads */
49 #define QH_IOS BIT(15)
50 #define QH_MAX_PKT (0x07FFUL << 16)
51 #define QH_ZLT BIT(29)
52 #define QH_MULT (0x0003UL << 30)
53 #define QH_ISO_MULT(x) ((x >> 11) & 0x03)
60 struct usb_ctrlrequest setup
;
61 } __attribute__ ((packed
, aligned(4)));
70 * struct ci_hw_req - usb request representation
71 * @req: request structure for gadget drivers
72 * @queue: link to QH list
73 * @ptr: transfer descriptor for this request
74 * @dma: dma address for the transfer descriptor
75 * @zptr: transfer descriptor for the zero packet
76 * @zdma: dma address of the zero packet's transfer descriptor
79 struct usb_request req
;
80 struct list_head queue
;
84 #ifdef CONFIG_USB_CHIPIDEA_UDC
86 int ci_hdrc_gadget_init(struct ci_hdrc
*ci
);
87 void ci_hdrc_gadget_destroy(struct ci_hdrc
*ci
);
91 static inline int ci_hdrc_gadget_init(struct ci_hdrc
*ci
)
96 static inline void ci_hdrc_gadget_destroy(struct ci_hdrc
*ci
)
103 #endif /* __DRIVERS_USB_CHIPIDEA_UDC_H */