/* * udc.h - ChipIdea UDC structures * * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved. * * Author: David Lopo * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __DRIVERS_USB_CHIPIDEA_UDC_H #define __DRIVERS_USB_CHIPIDEA_UDC_H #include <linux/list.h> #define CTRL_PAYLOAD_MAX 64 #define RX 0 /* similar to USB_DIR_OUT but can be used as an index */ #define TX 1 /* similar to USB_DIR_IN but can be used as an index */ /* DMA layout of transfer descriptors */ struct ci_hw_td { /* 0 */ u32 next; #define TD_TERMINATE BIT(0) #define TD_ADDR_MASK (0xFFFFFFEUL << 5) /* 1 */ u32 token; #define TD_STATUS (0x00FFUL << 0) #define TD_STATUS_TR_ERR BIT(3) #define TD_STATUS_DT_ERR BIT(5) #define TD_STATUS_HALTED BIT(6) #define TD_STATUS_ACTIVE BIT(7) #define TD_MULTO (0x0003UL << 10) #define TD_IOC BIT(15) #define TD_TOTAL_BYTES (0x7FFFUL << 16) /* 2 */ u32 page[5]; #define TD_CURR_OFFSET (0x0FFFUL << 0) #define TD_FRAME_NUM (0x07FFUL << 0) #define TD_RESERVED_MASK (0x0FFFUL << 0) } __attribute__ ((packed, aligned(4))); /* DMA layout of queue heads */ struct ci_hw_qh { /* 0 */ u32 cap; #define QH_IOS BIT(15) #define QH_MAX_PKT (0x07FFUL << 16) #define QH_ZLT BIT(29) #define QH_MULT (0x0003UL << 30) #define QH_ISO_MULT(x) ((x >> 11) & 0x03) /* 1 */ u32 curr; /* 2 - 8 */ struct ci_hw_td td; /* 9 */ u32 RESERVED; struct usb_ctrlrequest setup; } __attribute__ ((packed, aligned(4))); struct td_node { struct list_head td; dma_addr_t dma; struct ci_hw_td *ptr; }; /** * struct ci_hw_req - usb request representation * @req: request structure for gadget drivers * @queue: link to QH list * @ptr: transfer descriptor for this request * @dma: dma address for the transfer descriptor * @zptr: transfer descriptor for the zero packet * @zdma: dma address of the zero packet's transfer descriptor */ struct ci_hw_req { struct usb_request req; struct list_head queue; struct list_head tds; }; #ifdef CONFIG_USB_CHIPIDEA_UDC int ci_hdrc_gadget_init(struct ci_hdrc *ci); void ci_hdrc_gadget_destroy(struct ci_hdrc *ci); #else
static inline int ci_hdrc_gadget_init(struct ci_hdrc *ci) { return -ENXIO; }Contributors
| Person | Tokens | Prop | Commits | CommitProp | |
| alexander shishkin | alexander shishkin | 16 | 100.00% | 3 | 100.00% |
| Total | 16 | 100.00% | 3 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp | |
| peter chen | peter chen | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp | |
| alexander shishkin | alexander shishkin | 204 | 78.76% | 3 | 42.86% |
| michael grzeschik | michael grzeschik | 35 | 13.51% | 3 | 42.86% |
| peter chen | peter chen | 20 | 7.72% | 1 | 14.29% |
| Total | 259 | 100.00% | 7 | 100.00% |