^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2003-2008 Takahiro Hirofuchi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2015 Nobuo Iwata
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #ifndef __USBIP_VHCI_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #define __USBIP_VHCI_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/usb/hcd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct vhci_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct usb_device *udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * devid specifies a remote usb device uniquely instead
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * of combination of busnum and devnum.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) __u32 devid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* speed of a remote device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) enum usb_device_speed speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* vhci root-hub port to which this device is attached */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) __u32 rhport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct usbip_device ud;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* lock for the below link lists */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) spinlock_t priv_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* vhci_priv is linked to one of them. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct list_head priv_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct list_head priv_rx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /* vhci_unlink is linked to one of them */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct list_head unlink_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct list_head unlink_rx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* vhci_tx thread sleeps for this queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) wait_queue_head_t waitq_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) /* urb->hcpriv, use container_of() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct vhci_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) unsigned long seqnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct vhci_device *vdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct vhci_unlink {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) /* seqnum of this request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) unsigned long seqnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* seqnum of the unlink target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned long unlink_seqnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) enum hub_speed {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) HUB_SPEED_HIGH = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) HUB_SPEED_SUPER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* Number of supported ports. Value has an upperbound of USB_MAXCHILDREN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #ifdef CONFIG_USBIP_VHCI_HC_PORTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define VHCI_HC_PORTS CONFIG_USBIP_VHCI_HC_PORTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define VHCI_HC_PORTS 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* Each VHCI has 2 hubs (USB2 and USB3), each has VHCI_HC_PORTS ports */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define VHCI_PORTS (VHCI_HC_PORTS*2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #ifdef CONFIG_USBIP_VHCI_NR_HCS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define VHCI_NR_HCS CONFIG_USBIP_VHCI_NR_HCS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define VHCI_NR_HCS 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #define MAX_STATUS_NAME 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct vhci {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct platform_device *pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct vhci_hcd *vhci_hcd_hs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct vhci_hcd *vhci_hcd_ss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /* for usb_hcd.hcd_priv[0] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct vhci_hcd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct vhci *vhci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) u32 port_status[VHCI_HC_PORTS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) unsigned resuming:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) unsigned long re_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) atomic_t seqnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * NOTE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * wIndex shows the port number and begins from 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * But, the index of this array begins from 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct vhci_device vdev[VHCI_HC_PORTS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) extern int vhci_num_controllers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) extern struct vhci *vhcis;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) extern struct attribute_group vhci_attr_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) /* vhci_hcd.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) void rh_port_connect(struct vhci_device *vdev, enum usb_device_speed speed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /* vhci_sysfs.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int vhci_init_attr_group(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) void vhci_finish_attr_group(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /* vhci_rx.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct urb *pickup_urb_and_free_priv(struct vhci_device *vdev, __u32 seqnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int vhci_rx_loop(void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) /* vhci_tx.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) int vhci_tx_loop(void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static inline __u32 port_to_rhport(__u32 port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return port % VHCI_HC_PORTS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static inline int port_to_pdev_nr(__u32 port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return port / VHCI_PORTS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static inline struct vhci_hcd *hcd_to_vhci_hcd(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return (struct vhci_hcd *) (hcd->hcd_priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static inline struct device *hcd_dev(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return (hcd)->self.controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static inline const char *hcd_name(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return (hcd)->self.bus_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static inline struct usb_hcd *vhci_hcd_to_hcd(struct vhci_hcd *vhci_hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) return container_of((void *) vhci_hcd, struct usb_hcd, hcd_priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) static inline struct vhci_hcd *vdev_to_vhci_hcd(struct vhci_device *vdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return container_of((void *)(vdev - vdev->rhport), struct vhci_hcd, vdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #endif /* __USBIP_VHCI_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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