/* $FreeBSD$ */
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2008-2019 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USB_DEVICE_H_
#define _USB_DEVICE_H_
#ifndef USB_GLOBAL_INCLUDE_FILE
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_busdma.h>
#include <dev/usb/usb_transfer.h>
#endif
struct usb_bus_methods;
struct usb_config_descriptor;
struct usb_device; /* linux compat */
struct usb_fs_privdata;
struct usb_hw_ep_profile;
struct usb_symlink; /* UGEN */
#define USB_CTRL_XFER_MAX 2
/* "usb_config_parse()" commands */
#define USB_CFG_ALLOC 0
#define USB_CFG_FREE 1
#define USB_CFG_INIT 2
/* "usb_unconfigure()" flags */
#define USB_UNCFG_FLAG_NONE 0x00
#define USB_UNCFG_FLAG_FREE_EP0 0x02 /* endpoint zero is freed */
struct usb_udev_msg {
struct usb_proc_msg hdr;
struct usb_device *udev;
};
/* The following four structures makes up a tree, where we have the
* leaf structure, "usb_host_endpoint", first, and the root structure,
* "usb_device", last. The four structures below mirror the structure
* of the USB descriptors belonging to an USB configuration. Please
* refer to the USB specification for a definition of "endpoints" and
* "interfaces".
*/
struct usb_host_endpoint {
struct usb_endpoint_descriptor desc;
TAILQ_HEAD(, urb) bsd_urb_list;
struct usb_xfer *bsd_xfer[2];
uint8_t *extra; /* Extra descriptors */
usb_frlength_t fbsd_buf_size;
uint16_t extralen;
uint8_t bsd_iface_index;
} __aligned(USB_HOST_ALIGN);
struct usb_host_interface {
struct usb_interface_descriptor desc;
/* the following array has size "desc.bNumEndpoint" */
struct usb_host_endpoint *endpoint;
const char *string; /* iInterface string, if present */
uint8_t *extra; /* Extra descriptors */
uint16_t extralen;
uint8_t bsd_iface_index;
} __aligned(USB_HOST_ALIGN);
/*
* The following structure defines the USB device flags.
*/
struct usb_device_flags {
enum usb_hc_mode usb_mode; /* host or device mode */
uint8_t self_powered:1; /* set if USB device is self powered */
uint8_t no_strings:1; /* set if USB device does not support
* strings */
uint8_t remote_wakeup:1; /* set if remote wakeup is enabled */
uint8_t uq_bus_powered:1; /* set if BUS powered quirk is present */
/*
* NOTE: Although the flags below will reach the same value
* over time, but the instant values may differ, and
* consequently the flags cannot be merged into one!
*/
uint8_t peer_suspended:1; /* set if peer is suspended */
uint8_t self_suspended:1; /* set if self is suspended */
};
/*
* The following structure is used for power-save purposes. The data
* in this structure is protected by the USB BUS lock.
*/
struct usb_power_save {
usb_ticks_t last_xfer_time; /* copy of "ticks" */
usb_size_t type_refs[4]; /* transfer reference count */
usb_size_t read_refs; /* data read references */
usb_size_t write_refs; /* data write references */
};
/*
* The following structure is used when trying to allocate hardware
* endpoints for an USB configuration in USB device side mode.
*/
struct usb_hw_ep_scratch_sub {
const struct usb_hw_ep_profile *pf;
uint16_t max_frame_size;
uint8_t hw_endpoint_out;
uint8_t hw_endpoint_in;
uint8_t needs_ep_type;
uint8_t needs_in:1;
uint8_t needs_out:1;
};
/*
* The following structure is used when trying to allocate hardware
* endpoints for an USB configuration in USB device side mode.
*/
struct usb_hw_ep_scratch {
struct usb_hw_ep_scratch_sub ep[USB_EP_MAX];
struct usb_hw_ep_scratch_sub *ep_max;
struct usb_config_descriptor *cd;
struct usb_device *udev;
const struct usb_bus_methods *methods;
uint8_t bmOutAlloc[(USB_EP_MAX + 15) / 16];
uint8_t bmInAlloc[(USB_EP_MAX + 15) / 16];
};
/*
* The following structure is used when generating USB descriptors
* from USB templates.
*/
struct usb_temp_setup {
void *buf;
usb_size_t size;
enum usb_dev_speed usb_speed;
uint8_t self_powered;
uint8_t bNumEndpoints;
uint8_t bInterfaceNumber;
uint8_t bAlternateSetting;
uint8_t bConfigurationValue;
usb_error_t err;
};
/*
* The scratch area for USB devices. Access to this structure is
* protected by the control SX lock.
*/
union usb_device_scratch {
struct usb_hw_ep_scratch hw_ep_scratch[1];
struct usb_temp_setup temp_setup[1];
struct {
struct usb_xfer dummy;
struct usb_setup_params parm;
} xfer_setup[1];
uint8_t data[255];
};
/*
* Helper structure to keep track of USB device statistics.
*/
struct usb_device_statistics {
uint32_t uds_requests[4];
};
/*
* The following structure defines an USB device. There exists one of
* these structures for every USB device.
*/
struct usb_device {
/* statistics */
struct usb_device_statistics stats_err;
struct usb_device_statistics stats_ok;
struct usb_device_statistics stats_cancelled;
/* generic clear stall message */
struct usb_udev_msg cs_msg[2];
struct sx enum_sx;
struct sx sr_sx;
struct sx ctrl_sx;
struct mtx device_mtx;
struct cv ctrlreq_cv;
struct cv ref_cv;
#if (USB_HAVE_FIXED_IFACE == 0)
struct usb_interface *ifaces;
#else
struct usb_interface ifaces[USB_IFACE_MAX];
#endif
struct usb_endpoint ctrl_ep; /* Control Endpoint 0 */
#if (USB_HAVE_FIXED_ENDPOINT == 0)
struct usb_endpoint *endpoints;
#else
struct usb_endpoint endpoints[USB_MAX_EP_UNITS];
#endif
struct usb_power_save pwr_save;/* power save data */
struct usb_bus *bus; /* our USB BUS */
device_t parent_dev; /* parent device */
struct usb_device *parent_hub;
struct usb_device *parent_hs_hub; /* high-speed parent HUB */
struct usb_config_descriptor *cdesc; /* full config descr */
struct usb_hub *hub; /* only if this is a hub */
struct usb_xfer *ctrl_xfer[USB_CTRL_XFER_MAX];
struct usb_temp_data *usb_template_ptr;
struct usb_endpoint *ep_curr; /* current clear stall endpoint */
#if USB_HAVE_UGEN
struct usb_fifo *fifo[USB_FIFO_MAX];
struct usb_symlink *ugen_symlink; /* our generic symlink */
struct usb_fs_privdata *ctrl_dev; /* Control Endpoint 0 device node */
LIST_HEAD(,usb_fs_privdata) pd_list;
char ugen_name[20]; /* name of ugenX.X device */
#endif
usb_ticks_t plugtime; /* copy of "ticks" */
enum usb_dev_state state;
enum usb_dev_speed speed;
uint16_t refcount;
#define USB_DEV_REF_MAX 0xffff
uint16_t power; /* mA the device uses */
uint16_t langid; /* language for strings */
uint16_t autoQuirk[USB_MAX_AUTO_QUIRK]; /* dynamic quirks */
uint8_t address; /* device addess */
uint8_t device_index; /* device index in "bus->devices" */
uint8_t controller_slot_id; /* controller specific value */
uint8_t next_config_index; /* used by USB_RE_ENUM_SET_CONFIG */
uint8_t curr_config_index; /* current configuration index */
uint8_t curr_config_no; /* current configuration number */
uint8_t depth; /* distance from root HUB */
uint8_t port_index; /* parent HUB port index */
uint8_t port_no; /* parent HUB port number */
uint8_t hs_hub_addr; /* high-speed HUB address */
uint8_t hs_port_no; /* high-speed HUB port number */
uint8_t driver_added_refcount; /* our driver added generation count */
uint8_t power_mode; /* see USB_POWER_XXX */
uint8_t re_enumerate_wait; /* set if re-enum. is in progress */
#define USB_RE_ENUM_DONE 0
#define USB_RE_ENUM_START 1
#define USB_RE_ENUM_PWR_OFF 2
#define USB_RE_ENUM_SET_CONFIG 3
uint8_t ifaces_max; /* number of interfaces present */
uint8_t endpoints_max; /* number of endpoints present */
/* the "flags" field is write-protected by "bus->mtx" */
struct usb_device_flags flags;
struct usb_endpoint_descriptor ctrl_ep_desc; /* for endpoint 0 */
struct usb_endpoint_ss_comp_descriptor ctrl_ep_comp_desc; /* for endpoint 0 */
struct usb_device_descriptor ddesc; /* device descriptor */
char *serial; /* serial number, can be NULL */
char *manufacturer; /* manufacturer string, can be NULL */
char *product; /* product string, can be NULL */
#if USB_HAVE_COMPAT_LINUX
/* Linux compat */
struct usb_device_descriptor descriptor;
struct usb_host_endpoint ep0;
struct usb_interface *linux_iface_start;
struct usb_interface *linux_iface_end;
struct usb_host_endpoint *linux_endpoint_start;
struct usb_host_endpoint *linux_endpoint_end;
uint16_t devnum;
#endif
uint32_t clear_stall_errors; /* number of clear-stall failures */
union usb_device_scratch scratch;
#if (USB_HAVE_FIXED_CONFIG != 0)
uint32_t config_data[(USB_CONFIG_MAX + 3) / 4];
#endif
};
/* globals */
extern int usb_template;
/* function prototypes */
const char *usb_statestr(enum usb_dev_state state);
struct usb_device *usb_alloc_device(device_t parent_dev, struct usb_bus *bus,
struct usb_device *parent_hub, uint8_t depth,
uint8_t port_index, uint8_t port_no,
enum usb_dev_speed speed, enum usb_hc_mode mode);
#if USB_HAVE_UGEN
struct usb_fs_privdata *usb_make_dev(struct usb_device *, const char *,
int, int, int, uid_t, gid_t, int);
void usb_destroy_dev(struct usb_fs_privdata *);
void usb_destroy_dev_sync(struct usb_fs_privdata *);
#endif
usb_error_t usb_probe_and_attach(struct usb_device *udev,
uint8_t iface_index);
void usb_detach_device(struct usb_device *, uint8_t, uint8_t);
usb_error_t usb_reset_iface_endpoints(struct usb_device *udev,
uint8_t iface_index);
usb_error_t usbd_set_config_index(struct usb_device *udev, uint8_t index);
usb_error_t usbd_set_endpoint_stall(struct usb_device *udev,
struct usb_endpoint *ep, uint8_t do_stall);
usb_error_t usb_suspend_resume(struct usb_device *udev,
uint8_t do_suspend);
void usb_devinfo(struct usb_device *udev, char *dst_ptr, uint16_t dst_len);
void usb_free_device(struct usb_device *, uint8_t);
void usb_linux_free_device(struct usb_device *dev);
uint8_t usb_peer_can_wakeup(struct usb_device *udev);
struct usb_endpoint *usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep);
void usb_set_device_state(struct usb_device *, enum usb_dev_state);
enum usb_dev_state usb_get_device_state(struct usb_device *);
void usb_set_device_strings(struct usb_device *);
void usb_get_langid(struct usb_device *);
uint8_t usbd_enum_lock(struct usb_device *);
#if USB_HAVE_UGEN
uint8_t usbd_enum_lock_sig(struct usb_device *);
#endif
void usbd_enum_unlock(struct usb_device *);
void usbd_sr_lock(struct usb_device *);
void usbd_sr_unlock(struct usb_device *);
uint8_t usbd_ctrl_lock(struct usb_device *);
void usbd_ctrl_unlock(struct usb_device *);
uint8_t usbd_enum_is_locked(struct usb_device *);
#if USB_HAVE_TT_SUPPORT
void uhub_tt_buffer_reset_async_locked(struct usb_device *, struct usb_endpoint *);
#endif
uint8_t uhub_count_active_host_ports(struct usb_device *, enum usb_dev_speed);
#endif /* _USB_DEVICE_H_ */