projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e443b333 AS |
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 */ | |
| 23 | struct 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 */ | |
| 46 | struct 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 | /* Extension of usb_request */ | |
| 63 | struct ci13xxx_req { | |
| 64 | struct usb_request req; | |
| 65 | unsigned map; | |
| 66 | struct list_head queue; | |
| 67 | struct ci13xxx_td *ptr; | |
| 68 | dma_addr_t dma; | |
| 69 | struct ci13xxx_td *zptr; | |
| 70 | dma_addr_t zdma; | |
| 71 | }; | |
| 72 | ||
| 73 | #ifdef CONFIG_USB_CHIPIDEA_UDC | |
| 74 | irqreturn_t udc_irq(int irq, void *data); | |
| 75 | int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, | |
| 76 | void __iomem *regs, struct ci13xxx **_udc); | |
| 77 | void udc_remove(struct ci13xxx *udc); | |
| 78 | #else | |
| 79 | static inline irqreturn_t udc_irq(int irq, void *data) | |
| 80 | { | |
| 81 | return IRQ_NONE; | |
| 82 | } | |
| 83 | ||
| 84 | static inline | |
| 85 | int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, | |
| 86 | void __iomem *regs, struct ci13xxx **_udc) | |
| 87 | { | |
| 88 | return -ENODEV; | |
| 89 | } | |
| 90 | ||
| 91 | static inline void udc_remove(struct ci13xxx *udc) | |
| 92 | { | |
| 93 | } | |
| 94 | #endif | |
| 95 | ||
| 96 | #endif /* __DRIVERS_USB_CHIPIDEA_UDC_H */ |