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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 18:50:46 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 18:50:46 -0400
commita481991467d38afb43c3921d5b5b59ccb61b04ba (patch)
treea4b0b9a14da6fd5ef7b9b512bb32dbfcfcf2cd71 /drivers/usb/chipidea/udc.h
parentf6a26ae7699416d86bea8cb68ce413571e9cab3c (diff)
parentcda4db53e9c28061c100400e1a4d273ea61dfba9 (diff)
Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB 3.5-rc1 changes from Greg Kroah-Hartman: "Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window. It's touches a lot of different parts of the kernel, all USB drivers, due to some API cleanups (getting rid of the ancient err() macro) and some changes that are needed for USB 3.0 power management updates. There are also lots of new drivers, pimarily gadget, but others as well. We deleted a staging driver, which was nice, and finally dropped the obsolete usbfs code, which will make Al happy to never have to touch that again. There were some build errors in the tree that linux-next found a few days ago, but those were fixed by the most recent changes (all were due to us not building with CONFIG_PM disabled.) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits) xhci: Fix DIV_ROUND_UP compile error. xhci: Fix compile with CONFIG_USB_SUSPEND=n USB: Fix core compile with CONFIG_USB_SUSPEND=n brcm80211: Fix compile error for .disable_hub_initiated_lpm. Revert "USB: EHCI: work around bug in the Philips ISP1562 controller" MAINTAINERS: Add myself as maintainer to the USB PHY Layer USB: EHCI: fix command register configuration lost problem USB: Remove races in devio.c USB: ehci-platform: remove update_device USB: Disable hub-initiated LPM for comms devices. xhci: Add Intel U1/U2 timeout policy. xhci: Add infrastructure for host-specific LPM policies. USB: Add macros for interrupt endpoint types. xhci: Reserve one command for USB3 LPM disable. xhci: Some Evaluate Context commands must succeed. USB: Disable USB 3.0 LPM in critical sections. USB: Add support to enable/disable USB3 link states. USB: Allow drivers to disable hub-initiated LPM. USB: Calculate USB 3.0 exit latencies for LPM. USB: Refactor code to set LPM support flag. ... Conflicts: arch/arm/mach-exynos/mach-nuri.c arch/arm/mach-exynos/mach-universal_c210.c drivers/net/wireless/ath/ath6kl/usb.c
Diffstat (limited to 'drivers/usb/chipidea/udc.h')
-rw-r--r--drivers/usb/chipidea/udc.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h
new file mode 100644
index 000000000000..4ff2384d7ca8
--- /dev/null
+++ b/drivers/usb/chipidea/udc.h
@@ -0,0 +1,93 @@
1/*
2 * udc.h - ChipIdea UDC structures
3 *
4 * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
5 *
6 * Author: David Lopo
7 *
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.
11 */
12
13#ifndef __DRIVERS_USB_CHIPIDEA_UDC_H
14#define __DRIVERS_USB_CHIPIDEA_UDC_H
15
16#include <linux/list.h>
17
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 */
21
22/* DMA layout of transfer descriptors */
23struct ci13xxx_td {
24 /* 0 */
25 u32 next;
26#define TD_TERMINATE BIT(0)
27#define TD_ADDR_MASK (0xFFFFFFEUL << 5)
28 /* 1 */
29 u32 token;
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)
38 /* 2 */
39 u32 page[5];
40#define TD_CURR_OFFSET (0x0FFFUL << 0)
41#define TD_FRAME_NUM (0x07FFUL << 0)
42#define TD_RESERVED_MASK (0x0FFFUL << 0)
43} __attribute__ ((packed));
44
45/* DMA layout of queue heads */
46struct ci13xxx_qh {
47 /* 0 */
48 u32 cap;
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 /* 1 */
54 u32 curr;
55 /* 2 - 8 */
56 struct ci13xxx_td td;
57 /* 9 */
58 u32 RESERVED;
59 struct usb_ctrlrequest setup;
60} __attribute__ ((packed));
61
62/**
63 * struct ci13xxx_req - usb request representation
64 * @req: request structure for gadget drivers
65 * @queue: link to QH list
66 * @ptr: transfer descriptor for this request
67 * @dma: dma address for the transfer descriptor
68 * @zptr: transfer descriptor for the zero packet
69 * @zdma: dma address of the zero packet's transfer descriptor
70 */
71struct ci13xxx_req {
72 struct usb_request req;
73 struct list_head queue;
74 struct ci13xxx_td *ptr;
75 dma_addr_t dma;
76 struct ci13xxx_td *zptr;
77 dma_addr_t zdma;
78};
79
80#ifdef CONFIG_USB_CHIPIDEA_UDC
81
82int ci_hdrc_gadget_init(struct ci13xxx *ci);
83
84#else
85
86static inline int ci_hdrc_gadget_init(struct ci13xxx *ci)
87{
88 return -ENXIO;
89}
90
91#endif
92
93#endif /* __DRIVERS_USB_CHIPIDEA_UDC_H */