uboot-phytec

#ifndef __USB_COMPAT_H__

#define __USB_COMPAT_H__

​

#include <dm.h>

#include "usb.h"

​

struct usb_hcd {

    void *hcd_priv;

};

​

struct usb_host_endpoint {

    struct usb_endpoint_descriptor      desc;

    struct list_head urb_list;

    void *hcpriv;

};

​

/*

 * urb->transfer_flags:

 *

 * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb().

 */

#define URB_SHORT_NOT_OK    0x0001  /* report short reads as errors */

#define URB_ZERO_PACKET     0x0040  /* Finish bulk OUT with short packet */

​

struct urb;

​

typedef void (*usb_complete_t)(struct urb *);

​

struct urb {

    void *hcpriv;           /* private data for host controller */

    struct list_head urb_list;  /* list head for use by the urb's

                     * current owner */

    struct usb_device *dev;     /* (in) pointer to associated device */

    struct usb_host_endpoint *ep;   /* (internal) pointer to endpoint */

    unsigned int pipe;      /* (in) pipe information */

    int status;         /* (return) non-ISO status */

    unsigned int transfer_flags;    /* (in) URB_SHORT_NOT_OK | ...*/

    void *transfer_buffer;      /* (in) associated data buffer */

    dma_addr_t transfer_dma;    /* (in) dma addr for transfer_buffer */

    u32 transfer_buffer_length; /* (in) data buffer length */

    u32 actual_length;      /* (return) actual transfer length */

    unsigned char *setup_packet;    /* (in) setup packet (control only) */

    int start_frame;        /* (modify) start frame (ISO) */

    usb_complete_t complete;    /* (in) completion routine */

};

​

#define usb_hcd_link_urb_to_ep(hcd, urb)    ({      \

    int ret = 0;                        \

    list_add_tail(&urb->urb_list, &urb->ep->urb_list);  \

    ret; })

#define usb_hcd_unlink_urb_from_ep(hcd, urb)    list_del_init(&urb->urb_list)

#define usb_hcd_check_unlink_urb(hdc, urb, status)  0

​

static inline void usb_hcd_giveback_urb(struct usb_hcd *hcd,

                    struct urb *urb,

                    int status)

{

    urb->status = status;

    if (urb->complete)

        urb->complete(urb);

}

​

static inline int usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd,

                    struct urb *urb)

{

    /* TODO: add cache invalidation here */

    return 0;

}

​

#if CONFIG_IS_ENABLED(DM_USB)

static inline struct usb_device *usb_dev_get_parent(struct usb_device *udev)

{

    struct udevice *parent = udev->dev->parent;

​

    /*

     * When called from usb-uclass.c: usb_scan_device() udev->dev points

     * to the parent udevice, not the actual udevice belonging to the

     * udev as the device is not instantiated yet.

     *

     * If dev is an usb-bus, then we are called from usb_scan_device() for

     * an usb-device plugged directly into the root port, return NULL.

     */

    if (device_get_uclass_id(udev->dev) == UCLASS_USB)

        return NULL;

​

    /*

     * If these 2 are not the same we are being called from

     * usb_scan_device() and udev itself is the parent.

     */

    if (dev_get_parent_priv(udev->dev) != udev)

        return udev;

​