mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 19:53:59 +08:00
3f124d233e
- The role's init will be called at probe procedure. - The role's destroy will be called at fail patch at probe and driver's removal. - The role's start/stop will be called when specific role has started. Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/*
|
|
* 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;
|
|
}
|
|
|
|
static inline void ci_hdrc_gadget_destroy(struct ci_hdrc *ci)
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* __DRIVERS_USB_CHIPIDEA_UDC_H */
|