1 #ifndef __USB_COMPAT_H__ 2 #define __USB_COMPAT_H__ 3 4 #include <dm.h> 5 #include "usb.h" 6 7 struct usb_hcd { 8 void *hcd_priv; 9 }; 10 11 struct usb_host_endpoint { 12 struct usb_endpoint_descriptor desc; 13 struct list_head urb_list; 14 void *hcpriv; 15 }; 16 17 /* 18 * urb->transfer_flags: 19 * 20 * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb(). 21 */ 22 #define URB_SHORT_NOT_OK 0x0001 /* report short reads as errors */ 23 #define URB_ZERO_PACKET 0x0040 /* Finish bulk OUT with short packet */ 24 25 struct urb; 26 27 typedef void (*usb_complete_t)(struct urb *); 28 29 struct urb { 30 void *hcpriv; /* private data for host controller */ 31 struct list_head urb_list; /* list head for use by the urb's 32 * current owner */ 33 struct usb_device *dev; /* (in) pointer to associated device */ 34 struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */ 35 unsigned int pipe; /* (in) pipe information */ 36 int status; /* (return) non-ISO status */ 37 unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/ 38 void *transfer_buffer; /* (in) associated data buffer */ 39 dma_addr_t transfer_dma; /* (in) dma addr for transfer_buffer */ 40 u32 transfer_buffer_length; /* (in) data buffer length */ 41 u32 actual_length; /* (return) actual transfer length */ 42 unsigned char *setup_packet; /* (in) setup packet (control only) */ 43 int start_frame; /* (modify) start frame (ISO) */ 44 usb_complete_t complete; /* (in) completion routine */ 45 }; 46 47 #define usb_hcd_link_urb_to_ep(hcd, urb) ({ \ 48 int ret = 0; \ 49 list_add_tail(&urb->urb_list, &urb->ep->urb_list); \ 50 ret; }) 51 #define usb_hcd_unlink_urb_from_ep(hcd, urb) list_del_init(&urb->urb_list) 52 #define usb_hcd_check_unlink_urb(hdc, urb, status) 0 53 54 static inline void usb_hcd_giveback_urb(struct usb_hcd *hcd, 55 struct urb *urb, 56 int status) 57 { 58 urb->status = status; 59 if (urb->complete) 60 urb->complete(urb); 61 } 62 63 static inline int usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd, 64 struct urb *urb) 65 { 66 /* TODO: add cache invalidation here */ 67 return 0; 68 } 69 70 #ifdef CONFIG_DM_USB 71 static inline u16 find_tt(struct usb_device *udev) 72 { 73 struct udevice *parent; 74 struct usb_device *uparent, *ttdev; 75 76 /* 77 * When called from usb-uclass.c: usb_scan_device() udev->dev points 78 * to the parent udevice, not the actual udevice belonging to the 79 * udev as the device is not instantiated yet. So when searching 80 * for the first usb-2 parent start with udev->dev not 81 * udev->dev->parent . 82 */ 83 ttdev = udev; 84 parent = udev->dev; 85 uparent = dev_get_parent_priv(parent); 86 87 while (uparent->speed != USB_SPEED_HIGH) { 88 struct udevice *dev = parent; 89 90 if (device_get_uclass_id(dev->parent) != UCLASS_USB_HUB) { 91 printf("musb: Error cannot find high speed parent of usb-1 device\n"); 92 return 0; 93 } 94 95 ttdev = dev_get_parent_priv(dev); 96 parent = dev->parent; 97 uparent = dev_get_parent_priv(parent); 98 } 99 100 return (uparent->devnum << 8) | (ttdev->portnr - 1); 101 } 102 103 static inline struct usb_device *usb_dev_get_parent(struct usb_device *udev) 104 { 105 struct udevice *parent = udev->dev->parent; 106 107 /* 108 * When called from usb-uclass.c: usb_scan_device() udev->dev points 109 * to the parent udevice, not the actual udevice belonging to the 110 * udev as the device is not instantiated yet. 111 * 112 * If dev is an usb-bus, then we are called from usb_scan_device() for 113 * an usb-device plugged directly into the root port, return NULL. 114 */ 115 if (device_get_uclass_id(udev->dev) == UCLASS_USB) 116 return NULL; 117 118 /* 119 * If these 2 are not the same we are being called from 120 * usb_scan_device() and udev itself is the parent. 121 */ 122 if (dev_get_parent_priv(udev->dev) != udev) 123 return udev; 124 125 /* We are being called normally, use the parent pointer */ 126 if (device_get_uclass_id(parent) == UCLASS_USB_HUB) 127 return dev_get_parent_priv(parent); 128 129 return NULL; 130 } 131 #else 132 static inline u16 find_tt(struct usb_device *dev) 133 { 134 u8 chid; 135 u8 hub; 136 137 /* Find out the nearest parent which is high speed */ 138 while (dev->parent->parent != NULL) 139 if (dev->parent->speed != USB_SPEED_HIGH) 140 dev = dev->parent; 141 else 142 break; 143 144 /* determine the port address at that hub */ 145 hub = dev->parent->devnum; 146 for (chid = 0; chid < USB_MAXCHILDREN; chid++) 147 if (dev->parent->children[chid] == dev) 148 break; 149 150 return (hub << 8) | chid; 151 } 152 153 static inline struct usb_device *usb_dev_get_parent(struct usb_device *dev) 154 { 155 return dev->parent; 156 } 157 #endif 158 159 #endif /* __USB_COMPAT_H__ */ 160