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wdenk012771d2002-03-08 21:31:05 +00001/*
2 * (C) Copyright 2001
3 * Denis Peter, MPL AG Switzerland
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
wdenk012771d2002-03-08 21:31:05 +00006 * Note: Part of this code has been derived from linux
7 *
8 */
9#ifndef _USB_H_
10#define _USB_H_
11
12#include <usb_defs.h>
Ilya Yanokc60795f2012-11-06 13:48:20 +000013#include <linux/usb/ch9.h>
wdenk012771d2002-03-08 21:31:05 +000014
Tom Rini71c5de42012-07-15 22:14:24 +000015/*
16 * The EHCI spec says that we must align to at least 32 bytes. However,
17 * some platforms require larger alignment.
18 */
19#if ARCH_DMA_MINALIGN > 32
20#define USB_DMA_MINALIGN ARCH_DMA_MINALIGN
21#else
22#define USB_DMA_MINALIGN 32
23#endif
24
wdenk012771d2002-03-08 21:31:05 +000025/* Everything is aribtrary */
wdenk5cf91d62004-04-23 20:32:05 +000026#define USB_ALTSETTINGALLOC 4
27#define USB_MAXALTSETTING 128 /* Hard limit */
wdenk012771d2002-03-08 21:31:05 +000028
wdenk5cf91d62004-04-23 20:32:05 +000029#define USB_MAX_DEVICE 32
30#define USB_MAXCONFIG 8
31#define USB_MAXINTERFACES 8
32#define USB_MAXENDPOINTS 16
33#define USB_MAXCHILDREN 8 /* This is arbitrary */
34#define USB_MAX_HUB 16
wdenk012771d2002-03-08 21:31:05 +000035
36#define USB_CNTL_TIMEOUT 100 /* 100ms timeout */
37
Simon Glass96820a32011-02-07 14:42:16 -080038/*
39 * This is the timeout to allow for submitting an urb in ms. We allow more
40 * time for a BULK device to react - some are slow.
41 */
Jason Cooper80b350a2011-07-31 20:09:58 +000042#define USB_TIMEOUT_MS(pipe) (usb_pipebulk(pipe) ? 5000 : 1000)
Simon Glass96820a32011-02-07 14:42:16 -080043
wdenk012771d2002-03-08 21:31:05 +000044/* device request (setup) */
45struct devrequest {
Michael Trimarchide39f8c2008-11-26 17:41:34 +010046 unsigned char requesttype;
47 unsigned char request;
48 unsigned short value;
49 unsigned short index;
50 unsigned short length;
wdenk012771d2002-03-08 21:31:05 +000051} __attribute__ ((packed));
52
Tom Rix8f8bd562009-10-31 12:37:38 -050053/* Interface */
54struct usb_interface {
55 struct usb_interface_descriptor desc;
wdenk012771d2002-03-08 21:31:05 +000056
Michael Trimarchide39f8c2008-11-26 17:41:34 +010057 unsigned char no_of_ep;
58 unsigned char num_altsetting;
59 unsigned char act_altsetting;
60
wdenk012771d2002-03-08 21:31:05 +000061 struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS];
Vivek Gautam6497c662013-04-12 16:34:38 +053062 /*
63 * Super Speed Device will have Super Speed Endpoint
64 * Companion Descriptor (section 9.6.7 of usb 3.0 spec)
65 * Revision 1.0 June 6th 2011
66 */
67 struct usb_ss_ep_comp_descriptor ss_ep_comp_desc[USB_MAXENDPOINTS];
wdenk012771d2002-03-08 21:31:05 +000068} __attribute__ ((packed));
69
Tom Rix8f8bd562009-10-31 12:37:38 -050070/* Configuration information.. */
71struct usb_config {
Ilya Yanokc60795f2012-11-06 13:48:20 +000072 struct usb_config_descriptor desc;
wdenk012771d2002-03-08 21:31:05 +000073
Michael Trimarchide39f8c2008-11-26 17:41:34 +010074 unsigned char no_of_if; /* number of interfaces */
Tom Rix8f8bd562009-10-31 12:37:38 -050075 struct usb_interface if_desc[USB_MAXINTERFACES];
wdenk012771d2002-03-08 21:31:05 +000076} __attribute__ ((packed));
77
Remy Bohmer48867202008-10-10 10:23:21 +020078enum {
79 /* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */
80 PACKET_SIZE_8 = 0,
81 PACKET_SIZE_16 = 1,
82 PACKET_SIZE_32 = 2,
83 PACKET_SIZE_64 = 3,
84};
wdenk012771d2002-03-08 21:31:05 +000085
86struct usb_device {
Michael Trimarchide39f8c2008-11-26 17:41:34 +010087 int devnum; /* Device number on USB bus */
Michael Trimarchi3e126482008-11-28 13:19:19 +010088 int speed; /* full/low/high */
Michael Trimarchide39f8c2008-11-26 17:41:34 +010089 char mf[32]; /* manufacturer */
90 char prod[32]; /* product */
91 char serial[32]; /* serial number */
wdenk012771d2002-03-08 21:31:05 +000092
Remy Bohmer48867202008-10-10 10:23:21 +020093 /* Maximum packet size; one of: PACKET_SIZE_* */
94 int maxpacketsize;
95 /* one bit for each endpoint ([0] = IN, [1] = OUT) */
96 unsigned int toggle[2];
Michael Trimarchide39f8c2008-11-26 17:41:34 +010097 /* endpoint halts; one bit per endpoint # & direction;
98 * [0] = IN, [1] = OUT
99 */
Remy Bohmer48867202008-10-10 10:23:21 +0200100 unsigned int halted[2];
wdenk012771d2002-03-08 21:31:05 +0000101 int epmaxpacketin[16]; /* INput endpoint specific maximums */
102 int epmaxpacketout[16]; /* OUTput endpoint specific maximums */
103
104 int configno; /* selected config number */
Puneet Saxenaf5766132012-04-03 14:56:06 +0530105 /* Device Descriptor */
106 struct usb_device_descriptor descriptor
107 __attribute__((aligned(ARCH_DMA_MINALIGN)));
Tom Rix8f8bd562009-10-31 12:37:38 -0500108 struct usb_config config; /* config descriptor */
wdenk012771d2002-03-08 21:31:05 +0000109
110 int have_langid; /* whether string_langid is valid yet */
111 int string_langid; /* language ID for strings */
112 int (*irq_handle)(struct usb_device *dev);
113 unsigned long irq_status;
wdenk5cf91d62004-04-23 20:32:05 +0000114 int irq_act_len; /* transfered bytes */
wdenk012771d2002-03-08 21:31:05 +0000115 void *privptr;
116 /*
117 * Child devices - if this is a hub device
118 * Each instance needs its own set of data structures.
119 */
120 unsigned long status;
121 int act_len; /* transfered bytes */
122 int maxchild; /* Number of ports if hub */
Michael Trimarchi3e126482008-11-28 13:19:19 +0100123 int portnr;
wdenk012771d2002-03-08 21:31:05 +0000124 struct usb_device *parent;
125 struct usb_device *children[USB_MAXCHILDREN];
Lucas Stachc7e3b2b2012-09-26 00:14:34 +0200126
127 void *controller; /* hardware controller private data */
Vivek Gautam5853e132013-09-14 14:02:45 +0530128 /* slot_id - for xHCI enabled devices */
129 unsigned int slot_id;
wdenk012771d2002-03-08 21:31:05 +0000130};
131
Hans de Goede8460b892014-09-24 14:06:06 +0200132struct int_queue;
133
Troy Kiskybba67912013-10-10 15:27:55 -0700134/*
135 * You can initialize platform's USB host or device
136 * ports by passing this enum as an argument to
137 * board_usb_init().
138 */
139enum usb_init_type {
140 USB_INIT_HOST,
141 USB_INIT_DEVICE
142};
143
wdenk012771d2002-03-08 21:31:05 +0000144/**********************************************************************
145 * this is how the lowlevel part communicate with the outer world
146 */
147
Rodolfo Giometti822af352007-04-03 14:27:18 +0200148#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || \
michael51ab1422008-12-11 13:43:55 +0100149 defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_OHCI_NEW) || \
Michael Trimarchi3e126482008-11-28 13:19:19 +0100150 defined(CONFIG_USB_SL811HS) || defined(CONFIG_USB_ISP116X_HCD) || \
Tom Rixf298e4b2009-10-31 12:37:41 -0500151 defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI) || \
Bryan Wue608f222009-12-16 22:04:02 -0500152 defined(CONFIG_USB_OMAP3) || defined(CONFIG_USB_DA8XX) || \
Ilya Yanok37931f02012-11-06 13:48:22 +0000153 defined(CONFIG_USB_BLACKFIN) || defined(CONFIG_USB_AM35X) || \
Ilya Yanok673a5242012-11-06 13:48:29 +0000154 defined(CONFIG_USB_MUSB_DSPS) || defined(CONFIG_USB_MUSB_AM35X) || \
Oleksandr Tymoshenko6e9e0622014-02-01 21:51:25 -0700155 defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined(CONFIG_USB_XHCI) || \
156 defined(CONFIG_USB_DWC2)
Rodolfo Giometti822af352007-04-03 14:27:18 +0200157
Troy Kisky06d513e2013-10-10 15:27:56 -0700158int usb_lowlevel_init(int index, enum usb_init_type init, void **controller);
Lucas Stachc7e3b2b2012-09-26 00:14:34 +0200159int usb_lowlevel_stop(int index);
160
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100161int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
162 void *buffer, int transfer_len);
wdenk012771d2002-03-08 21:31:05 +0000163int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100164 int transfer_len, struct devrequest *setup);
wdenk012771d2002-03-08 21:31:05 +0000165int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
166 int transfer_len, int interval);
167
Hans de Goede8460b892014-09-24 14:06:06 +0200168#ifdef CONFIG_USB_EHCI /* Only the ehci code has pollable int support */
169struct int_queue *create_int_queue(struct usb_device *dev, unsigned long pipe,
170 int queuesize, int elementsize, void *buffer);
171int destroy_int_queue(struct usb_device *dev, struct int_queue *queue);
172void *poll_int_queue(struct usb_device *dev, struct int_queue *queue);
173#endif
174
wdenk012771d2002-03-08 21:31:05 +0000175/* Defines */
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100176#define USB_UHCI_VEND_ID 0x8086
177#define USB_UHCI_DEV_ID 0x7112
wdenk012771d2002-03-08 21:31:05 +0000178
Lukasz Daleke5f24752012-10-02 17:04:33 +0200179/*
180 * PXA25x can only act as USB device. There are drivers
181 * which works with USB CDC gadgets implementations.
182 * Some of them have common routines which can be used
183 * in boards init functions e.g. udc_disconnect() used for
184 * forced device disconnection from host.
185 */
186#elif defined(CONFIG_USB_GADGET_PXA2XX)
187
188extern void udc_disconnect(void);
189
wdenk012771d2002-03-08 21:31:05 +0000190#endif
191
Mateusz Zalega16297cf2013-10-04 19:22:26 +0200192/*
Mateusz Zalega16297cf2013-10-04 19:22:26 +0200193 * board-specific hardware initialization, called by
194 * usb drivers and u-boot commands
195 *
196 * @param index USB controller number
197 * @param init initializes controller as USB host or device
198 */
Troy Kiskybba67912013-10-10 15:27:55 -0700199int board_usb_init(int index, enum usb_init_type init);
Mateusz Zalega16297cf2013-10-04 19:22:26 +0200200
201/*
202 * can be used to clean up after failed USB initialization attempt
203 * vide: board_usb_init()
204 *
205 * @param index USB controller number for selective cleanup
Troy Kiskybba67912013-10-10 15:27:55 -0700206 * @param init usb_init_type passed to board_usb_init()
Mateusz Zalega16297cf2013-10-04 19:22:26 +0200207 */
Troy Kiskybba67912013-10-10 15:27:55 -0700208int board_usb_cleanup(int index, enum usb_init_type init);
Mateusz Zalega16297cf2013-10-04 19:22:26 +0200209
wdenk012771d2002-03-08 21:31:05 +0000210#ifdef CONFIG_USB_STORAGE
211
212#define USB_MAX_STOR_DEV 5
213block_dev_desc_t *usb_stor_get_dev(int index);
214int usb_stor_scan(int mode);
Anatolij Gustschine813eae2008-03-26 17:47:44 +0100215int usb_stor_info(void);
wdenk012771d2002-03-08 21:31:05 +0000216
217#endif
218
Simon Glass89d48362011-02-16 11:14:33 -0800219#ifdef CONFIG_USB_HOST_ETHER
220
221#define USB_MAX_ETH_DEV 5
222int usb_host_eth_scan(int mode);
223
224#endif
225
wdenk012771d2002-03-08 21:31:05 +0000226#ifdef CONFIG_USB_KEYBOARD
227
228int drv_usb_kbd_init(void);
Hans de Goede8a8a2252014-09-20 16:54:38 +0200229int usb_kbd_deregister(int force);
wdenk012771d2002-03-08 21:31:05 +0000230
231#endif
232/* routines */
233int usb_init(void); /* initialize the USB Controller */
234int usb_stop(void); /* stop the USB Controller */
235
236
237int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol);
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100238int usb_set_idle(struct usb_device *dev, int ifnum, int duration,
239 int report_id);
240struct usb_device *usb_get_dev_index(int index);
wdenk012771d2002-03-08 21:31:05 +0000241int usb_control_msg(struct usb_device *dev, unsigned int pipe,
242 unsigned char request, unsigned char requesttype,
243 unsigned short value, unsigned short index,
244 void *data, unsigned short size, int timeout);
245int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
246 void *data, int len, int *actual_length, int timeout);
247int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100248 void *buffer, int transfer_len, int interval);
Simon Glass89d48362011-02-16 11:14:33 -0800249int usb_disable_asynch(int disable);
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100250int usb_maxpacket(struct usb_device *dev, unsigned long pipe);
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100251int usb_get_configuration_no(struct usb_device *dev, unsigned char *buffer,
252 int cfgno);
253int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type,
254 unsigned char id, void *buf, int size);
wdenk012771d2002-03-08 21:31:05 +0000255int usb_get_class_descriptor(struct usb_device *dev, int ifnum,
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100256 unsigned char type, unsigned char id, void *buf,
257 int size);
wdenk012771d2002-03-08 21:31:05 +0000258int usb_clear_halt(struct usb_device *dev, int pipe);
259int usb_string(struct usb_device *dev, int index, char *buf, size_t size);
260int usb_set_interface(struct usb_device *dev, int interface, int alternate);
261
262/* big endian -> little endian conversion */
wdenk149dded2003-09-10 18:20:28 +0000263/* some CPUs are already little endian e.g. the ARM920T */
Markus Klotzbuecherae3b7702006-11-27 11:46:46 +0100264#define __swap_16(x) \
wdenk3f85ce22004-02-23 16:11:30 +0000265 ({ unsigned short x_ = (unsigned short)x; \
266 (unsigned short)( \
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100267 ((x_ & 0x00FFU) << 8) | ((x_ & 0xFF00U) >> 8)); \
wdenk3f85ce22004-02-23 16:11:30 +0000268 })
Markus Klotzbuecherae3b7702006-11-27 11:46:46 +0100269#define __swap_32(x) \
wdenk3f85ce22004-02-23 16:11:30 +0000270 ({ unsigned long x_ = (unsigned long)x; \
271 (unsigned long)( \
272 ((x_ & 0x000000FFUL) << 24) | \
wdenk5cf91d62004-04-23 20:32:05 +0000273 ((x_ & 0x0000FF00UL) << 8) | \
274 ((x_ & 0x00FF0000UL) >> 8) | \
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100275 ((x_ & 0xFF000000UL) >> 24)); \
wdenk3f85ce22004-02-23 16:11:30 +0000276 })
Markus Klotzbuecherae3b7702006-11-27 11:46:46 +0100277
Mike Frysingerc7d703f2009-01-01 18:27:27 -0500278#ifdef __LITTLE_ENDIAN
Markus Klotzbuecherae3b7702006-11-27 11:46:46 +0100279# define swap_16(x) (x)
280# define swap_32(x) (x)
281#else
282# define swap_16(x) __swap_16(x)
283# define swap_32(x) __swap_32(x)
Mike Frysingerc7d703f2009-01-01 18:27:27 -0500284#endif
wdenk012771d2002-03-08 21:31:05 +0000285
286/*
287 * Calling this entity a "pipe" is glorifying it. A USB pipe
288 * is something embarrassingly simple: it basically consists
289 * of the following information:
290 * - device number (7 bits)
291 * - endpoint number (4 bits)
292 * - current Data0/1 state (1 bit)
293 * - direction (1 bit)
Michael Trimarchi3e126482008-11-28 13:19:19 +0100294 * - speed (2 bits)
wdenk012771d2002-03-08 21:31:05 +0000295 * - max packet size (2 bits: 8, 16, 32 or 64)
296 * - pipe type (2 bits: control, interrupt, bulk, isochronous)
297 *
298 * That's 18 bits. Really. Nothing more. And the USB people have
299 * documented these eighteen bits as some kind of glorious
300 * virtual data structure.
301 *
302 * Let's not fall in that trap. We'll just encode it as a simple
303 * unsigned int. The encoding is:
304 *
305 * - max size: bits 0-1 (00 = 8, 01 = 16, 10 = 32, 11 = 64)
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100306 * - direction: bit 7 (0 = Host-to-Device [Out],
307 * (1 = Device-to-Host [In])
wdenk012771d2002-03-08 21:31:05 +0000308 * - device: bits 8-14
309 * - endpoint: bits 15-18
310 * - Data0/1: bit 19
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100311 * - pipe type: bits 30-31 (00 = isochronous, 01 = interrupt,
312 * 10 = control, 11 = bulk)
wdenk012771d2002-03-08 21:31:05 +0000313 *
314 * Why? Because it's arbitrary, and whatever encoding we select is really
315 * up to us. This one happens to share a lot of bit positions with the UHCI
316 * specification, so that much of the uhci driver can just mask the bits
317 * appropriately.
318 */
319/* Create various pipes... */
320#define create_pipe(dev,endpoint) \
Sergei Shtylyovd0fe1122010-05-26 21:26:43 +0400321 (((dev)->devnum << 8) | ((endpoint) << 15) | \
Ilya Yanokc60795f2012-11-06 13:48:20 +0000322 (dev)->maxpacketsize)
Michael Trimarchi3e126482008-11-28 13:19:19 +0100323#define default_pipe(dev) ((dev)->speed << 26)
wdenk012771d2002-03-08 21:31:05 +0000324
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100325#define usb_sndctrlpipe(dev, endpoint) ((PIPE_CONTROL << 30) | \
326 create_pipe(dev, endpoint))
327#define usb_rcvctrlpipe(dev, endpoint) ((PIPE_CONTROL << 30) | \
328 create_pipe(dev, endpoint) | \
329 USB_DIR_IN)
330#define usb_sndisocpipe(dev, endpoint) ((PIPE_ISOCHRONOUS << 30) | \
331 create_pipe(dev, endpoint))
332#define usb_rcvisocpipe(dev, endpoint) ((PIPE_ISOCHRONOUS << 30) | \
333 create_pipe(dev, endpoint) | \
334 USB_DIR_IN)
335#define usb_sndbulkpipe(dev, endpoint) ((PIPE_BULK << 30) | \
336 create_pipe(dev, endpoint))
337#define usb_rcvbulkpipe(dev, endpoint) ((PIPE_BULK << 30) | \
338 create_pipe(dev, endpoint) | \
339 USB_DIR_IN)
340#define usb_sndintpipe(dev, endpoint) ((PIPE_INTERRUPT << 30) | \
341 create_pipe(dev, endpoint))
342#define usb_rcvintpipe(dev, endpoint) ((PIPE_INTERRUPT << 30) | \
343 create_pipe(dev, endpoint) | \
344 USB_DIR_IN)
345#define usb_snddefctrl(dev) ((PIPE_CONTROL << 30) | \
346 default_pipe(dev))
347#define usb_rcvdefctrl(dev) ((PIPE_CONTROL << 30) | \
348 default_pipe(dev) | \
349 USB_DIR_IN)
wdenk012771d2002-03-08 21:31:05 +0000350
351/* The D0/D1 toggle bits */
352#define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> ep) & 1)
wdenk5cf91d62004-04-23 20:32:05 +0000353#define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << ep))
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100354#define usb_settoggle(dev, ep, out, bit) ((dev)->toggle[out] = \
355 ((dev)->toggle[out] & \
356 ~(1 << ep)) | ((bit) << ep))
wdenk012771d2002-03-08 21:31:05 +0000357
358/* Endpoint halt control/status */
359#define usb_endpoint_out(ep_dir) (((ep_dir >> 7) & 1) ^ 1)
360#define usb_endpoint_halt(dev, ep, out) ((dev)->halted[out] |= (1 << (ep)))
361#define usb_endpoint_running(dev, ep, out) ((dev)->halted[out] &= ~(1 << (ep)))
362#define usb_endpoint_halted(dev, ep, out) ((dev)->halted[out] & (1 << (ep)))
363
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100364#define usb_packetid(pipe) (((pipe) & USB_DIR_IN) ? USB_PID_IN : \
365 USB_PID_OUT)
wdenk012771d2002-03-08 21:31:05 +0000366
367#define usb_pipeout(pipe) ((((pipe) >> 7) & 1) ^ 1)
368#define usb_pipein(pipe) (((pipe) >> 7) & 1)
369#define usb_pipedevice(pipe) (((pipe) >> 8) & 0x7f)
370#define usb_pipe_endpdev(pipe) (((pipe) >> 8) & 0x7ff)
371#define usb_pipeendpoint(pipe) (((pipe) >> 15) & 0xf)
372#define usb_pipedata(pipe) (((pipe) >> 19) & 1)
wdenk012771d2002-03-08 21:31:05 +0000373#define usb_pipetype(pipe) (((pipe) >> 30) & 3)
374#define usb_pipeisoc(pipe) (usb_pipetype((pipe)) == PIPE_ISOCHRONOUS)
375#define usb_pipeint(pipe) (usb_pipetype((pipe)) == PIPE_INTERRUPT)
376#define usb_pipecontrol(pipe) (usb_pipetype((pipe)) == PIPE_CONTROL)
377#define usb_pipebulk(pipe) (usb_pipetype((pipe)) == PIPE_BULK)
378
Vivek Gautam5853e132013-09-14 14:02:45 +0530379#define usb_pipe_ep_index(pipe) \
380 usb_pipecontrol(pipe) ? (usb_pipeendpoint(pipe) * 2) : \
381 ((usb_pipeendpoint(pipe) * 2) - \
382 (usb_pipein(pipe) ? 0 : 1))
wdenk012771d2002-03-08 21:31:05 +0000383
384/*************************************************************************
385 * Hub Stuff
386 */
387struct usb_port_status {
388 unsigned short wPortStatus;
389 unsigned short wPortChange;
390} __attribute__ ((packed));
391
392struct usb_hub_status {
393 unsigned short wHubStatus;
394 unsigned short wHubChange;
395} __attribute__ ((packed));
396
397
398/* Hub descriptor */
399struct usb_hub_descriptor {
400 unsigned char bLength;
401 unsigned char bDescriptorType;
402 unsigned char bNbrPorts;
403 unsigned short wHubCharacteristics;
404 unsigned char bPwrOn2PwrGood;
405 unsigned char bHubContrCurrent;
406 unsigned char DeviceRemovable[(USB_MAXCHILDREN+1+7)/8];
407 unsigned char PortPowerCtrlMask[(USB_MAXCHILDREN+1+7)/8];
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100408 /* DeviceRemovable and PortPwrCtrlMask want to be variable-length
wdenk012771d2002-03-08 21:31:05 +0000409 bitmaps that hold max 255 entries. (bit0 is ignored) */
410} __attribute__ ((packed));
411
412
413struct usb_hub_device {
414 struct usb_device *pusb_dev;
415 struct usb_hub_descriptor desc;
416};
417
Marek Vasut23faf2b2012-02-13 18:58:17 +0000418int usb_hub_probe(struct usb_device *dev, int ifnum);
419void usb_hub_reset(void);
420int hub_port_reset(struct usb_device *dev, int port,
421 unsigned short *portstat);
422
Lucas Stachc7e3b2b2012-09-26 00:14:34 +0200423struct usb_device *usb_alloc_new_device(void *controller);
424
Marek Vasut23faf2b2012-02-13 18:58:17 +0000425int usb_new_device(struct usb_device *dev);
Milind Choudhary359439d2012-12-12 17:55:28 -0800426void usb_free_device(void);
Vivek Gautam5853e132013-09-14 14:02:45 +0530427int usb_alloc_device(struct usb_device *dev);
Marek Vasut23faf2b2012-02-13 18:58:17 +0000428
wdenk012771d2002-03-08 21:31:05 +0000429#endif /*_USB_H_ */