260 lines
6.9 KiB
C
260 lines
6.9 KiB
C
/*-
|
|
* Copyright (c) 2014 Leon Dang <ldang@nahannisys.com>
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _USB_CORE_H_
|
|
#define _USB_CORE_H_
|
|
|
|
#include <stdlib.h>
|
|
#include <pthread.h>
|
|
#include <stdbool.h>
|
|
#include "types.h"
|
|
#include "log.h"
|
|
|
|
/* FIXME:
|
|
* There are some huge data requests which need more than 256 TRBs in a single
|
|
* transfer, so it is neccessary to expand it.
|
|
* But this is not final solution, this size should be dynamically changed
|
|
* according to the native xhci driver's adjust of trb segements.
|
|
* By default, the native xhci driver use two segments which contain 2 * 256
|
|
* trbs, so 1024 is enough currently.
|
|
*/
|
|
#define USB_XFER_OUT 0
|
|
#define USB_XFER_IN 1
|
|
|
|
#define USB_DIR_OUT 0
|
|
#define USB_DIR_IN 0x80
|
|
|
|
#define LIBUSB_TIMEOUT 10000
|
|
|
|
#define USB_CFG_ATT_ONE (1 << 7) /* should always be set */
|
|
#define USB_CFG_ATT_SELFPOWER (1 << 6)
|
|
#define USB_CFG_ATT_WAKEUP (1 << 5)
|
|
#define USB_CFG_ATT_BATTERY (1 << 4)
|
|
|
|
enum endpoint_type {
|
|
USB_ENDPOINT_CONTROL = 0,
|
|
USB_ENDPOINT_ISOC,
|
|
USB_ENDPOINT_BULK,
|
|
USB_ENDPOINT_INT,
|
|
USB_ENDPOINT_INVALID = 255
|
|
};
|
|
|
|
#define USB_INTERFACE_INVALID 255
|
|
|
|
enum token_type {
|
|
TOKEN_OUT = 0,
|
|
TOKEN_IN,
|
|
TOKEN_SETUP
|
|
};
|
|
|
|
enum usb_dev_type {
|
|
USB_DEV_STATIC = 0,
|
|
USB_DEV_PORT_MAPPER
|
|
};
|
|
|
|
enum usb_block_stat {
|
|
USB_BLOCK_FREE = 0,
|
|
USB_BLOCK_HANDLING,
|
|
USB_BLOCK_HANDLED
|
|
};
|
|
|
|
enum usb_native_devtype {
|
|
USB_TYPE_ROOTHUB,
|
|
USB_TYPE_EXTHUB,
|
|
USB_TYPE_ROOTHUB_SUBDEV,
|
|
USB_TYPE_EXTHUB_SUBDEV,
|
|
USB_TYPE_NONE
|
|
};
|
|
|
|
#define USB_MAX_TIERS 7
|
|
|
|
struct usb_hci;
|
|
struct usb_device_request;
|
|
struct usb_xfer;
|
|
|
|
/* Device emulation handlers */
|
|
struct usb_devemu {
|
|
char *ue_emu; /* name of device emulation */
|
|
int ue_usbver; /* usb version: 2 or 3 */
|
|
int ue_usbspeed; /* usb device speed */
|
|
int ue_devtype;
|
|
|
|
/* instance creation */
|
|
void *(*ue_init)(void *pdata, char *opt);
|
|
|
|
/* handlers */
|
|
int (*ue_request)(void *sc, struct usb_xfer *xfer);
|
|
int (*ue_data)(void *sc, struct usb_xfer *xfer, int dir,
|
|
int epctx);
|
|
int (*ue_info)(void *sc, int type, void *value, int size);
|
|
int (*ue_reset)(void *sc);
|
|
int (*ue_remove)(void *sc);
|
|
int (*ue_stop)(void *sc);
|
|
void (*ue_cancel_req)(void *pdata);
|
|
void (*ue_free_req)(void *pdata);
|
|
void (*ue_deinit)(void *pdata);
|
|
};
|
|
#define USB_EMUL_SET(x) DATA_SET(usb_emu_set, x)
|
|
|
|
/*
|
|
* USB device events to notify HCD when state changes
|
|
*/
|
|
enum hci_usbev {
|
|
USBDEV_ATTACH,
|
|
USBDEV_RESET,
|
|
USBDEV_STOP,
|
|
USBDEV_REMOVE,
|
|
};
|
|
|
|
/* usb controller, ie xhci, ehci */
|
|
struct usb_hci {
|
|
int (*hci_intr)(struct usb_hci *hci, int epctx);
|
|
int (*hci_event)(struct usb_hci *hci, enum hci_usbev evid,
|
|
void *param);
|
|
void *dev; /* private device for hci */
|
|
|
|
/* controller managed fields */
|
|
int hci_address;
|
|
int hci_port;
|
|
};
|
|
|
|
enum usb_block_type {
|
|
USB_DATA_NONE,
|
|
USB_DATA_PART,
|
|
USB_DATA_FULL
|
|
};
|
|
|
|
/*
|
|
* Each xfer block is mapped to the hci transfer block.
|
|
* On input into the device handler, blen is set to the lenght of buf.
|
|
* The device handler is to update blen to reflect on the residual size
|
|
* of the buffer, i.e. len(buf) - len(consumed).
|
|
*/
|
|
struct usb_block {
|
|
void *buf; /* IN or OUT pointer */
|
|
int blen; /* in:len(buf), out:len(remaining) */
|
|
int bdone; /* bytes transferred */
|
|
enum usb_block_stat stat; /* processed status */
|
|
enum usb_block_type type;
|
|
void *hcb; /* host controller block */
|
|
};
|
|
|
|
struct usb_xfer {
|
|
struct usb_block *data;
|
|
struct usb_dev_req **reqs;
|
|
struct usb_device_request *ureq; /* setup ctl request */
|
|
int ndata; /* # of data items */
|
|
int head;
|
|
int tail;
|
|
void *dev; /* struct pci_xhci_dev_emu *dev */
|
|
int epid; /* related endpoint id */
|
|
int pid; /* token id */
|
|
int max_blk_cnt;
|
|
int status;
|
|
};
|
|
|
|
struct usb_devpath {
|
|
uint8_t bus;
|
|
uint8_t depth;
|
|
uint8_t path[USB_MAX_TIERS];
|
|
};
|
|
#define ROOTHUB_PORT(x) ((x).path[0])
|
|
|
|
struct usb_native_devinfo {
|
|
int speed;
|
|
int maxchild;
|
|
uint16_t bcd;
|
|
uint16_t pid;
|
|
uint16_t vid;
|
|
enum usb_native_devtype type;
|
|
struct usb_devpath path;
|
|
void *priv_data;
|
|
};
|
|
|
|
enum USB_ERRCODE {
|
|
USB_ACK,
|
|
USB_NAK,
|
|
USB_STALL,
|
|
USB_NYET,
|
|
USB_ERR,
|
|
USB_SHORT
|
|
};
|
|
|
|
#define USB_DATA_GET_ERRCODE(x) ((x)->stat >> 8)
|
|
#define USB_DATA_SET_ERRCODE(x, e) \
|
|
((x)->stat = ((x)->stat & 0xFF) | (e << 8))
|
|
|
|
#define USB_DATA_OK(x, i) ((x)->data[(i)].buf != NULL)
|
|
|
|
#define LOG_TAG "USB: "
|
|
#define LFTL 0
|
|
#define LWRN 1
|
|
#define LINF 2
|
|
#define LDBG 3
|
|
#define LVRB 4
|
|
#define UPRINTF(lvl, fmt, args...) \
|
|
do { if (lvl <= usb_log_level) pr_dbg(LOG_TAG fmt, ##args); } while (0)
|
|
|
|
#define NATIVE_USBSYS_DEVDIR "/sys/bus/usb/devices"
|
|
#define NATIVE_USB2_SPEED "480"
|
|
#define NATIVE_USB3_SPEED "5000"
|
|
#define USB_NATIVE_NUM_PORT 20
|
|
#define USB_NATIVE_NUM_BUS 5
|
|
|
|
#define USB_DROPPED_XFER_MAGIC 0xaaaaaaaa55555555
|
|
|
|
inline bool
|
|
index_valid(int head, int tail, int maxcnt, int idx) {
|
|
if (head <= tail)
|
|
return (idx >= head && idx < tail);
|
|
else
|
|
return (idx >= head && idx < maxcnt) ||
|
|
(idx >= 0 && idx < tail);
|
|
}
|
|
|
|
inline int
|
|
index_inc(int idx, int maxcnt)
|
|
{
|
|
return (idx + 1) % maxcnt;
|
|
}
|
|
|
|
extern int usb_log_level;
|
|
static inline int usb_get_log_level(void) { return usb_log_level; }
|
|
static inline void usb_set_log_level(int level) { usb_log_level = level; }
|
|
void usb_parse_log_level(char level);
|
|
struct usb_devemu *usb_emu_finddev(char *name);
|
|
int usb_native_is_bus_existed(uint8_t bus_num);
|
|
int usb_native_is_port_existed(uint8_t bus_num, uint8_t port_num);
|
|
int usb_native_is_device_existed(struct usb_devpath *path);
|
|
struct usb_block *usb_block_append(struct usb_xfer *xfer, void *buf, int blen,
|
|
void *hcb, int hcb_len);
|
|
int usb_get_hub_port_num(struct usb_devpath *path);
|
|
char *usb_dev_path(struct usb_devpath *path);
|
|
bool usb_dev_path_cmp(struct usb_devpath *p1, struct usb_devpath *p2);
|
|
#endif /* _USB_CORE_H_ */
|