xref: /illumos-gate/usr/src/uts/common/sys/usb/hcd/ehci/ehcid.h (revision 9b58c2ad)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_USB_EHCID_H
27 #define	_SYS_USB_EHCID_H
28 
29 
30 #ifdef	__cplusplus
31 extern "C" {
32 #endif
33 
34 /*
35  * Enchanced Host Controller Driver (EHCI)
36  *
37  * The EHCI driver is a software driver which interfaces to the Universal
38  * Serial Bus layer (USBA) and the Host Controller (HC). The interface to
39  * the Host Controller is defined by the EHCI Host Controller Interface.
40  *
41  * This header file describes the data structures and function prototypes
42  * required for the EHCI Driver to maintain state of Host Controller (HC),
43  * to perform different USB transfers and for the bandwidth allocations.
44  */
45 
46 #include <sys/usb/hcd/ehci/ehci.h>
47 #include <sys/usb/hcd/ehci/ehci_hub.h>
48 
49 
50 /*
51  * EHCI Bandwidth Maintainence Structure.
52  *
53  * The ehci_bandwidth array keeps track of allocated bandwidth for ehci
54  * host controller. There are 32 bandwidth lists corresponding to 32 ms
55  * periodic frame lists.  Each bandwidth list inturn will contain eight
56  * micro frame bandwidth lists.
57  */
58 #define	EHCI_MAX_UFRAMES	8	/* Max uframes 125us per frame */
59 
60 typedef struct ehci_frame_bandwidth {
61 	uint_t			ehci_allocated_frame_bandwidth;
62 	uint_t			ehci_micro_frame_bandwidth[EHCI_MAX_UFRAMES];
63 } ehci_frame_bandwidth_t;
64 
65 
66 /*
67  * EHCI Host Controller state structure
68  *
69  * The Host Controller Driver (HCD) maintains the state of Host Controller
70  * (HC). There is an ehci_state structure per instance	of the EHCI
71  * host controller.
72  */
73 typedef struct ehci_state {
74 	dev_info_t		*ehci_dip;		/* Dip of HC */
75 	uint_t			ehci_instance;
76 	usba_hcdi_ops_t		*ehci_hcdi_ops;		/* HCDI structure */
77 	uint_t			ehci_flags;		/* Used for cleanup */
78 	uint16_t		ehci_vendor_id;		/* chip vendor */
79 	uint16_t		ehci_device_id;		/* chip device */
80 	uint8_t			ehci_rev_id;		/* chip revison */
81 
82 	ddi_acc_handle_t	ehci_caps_handle;	/* Caps Reg Handle */
83 	ehci_caps_t		*ehci_capsp;		/* Capability Regs */
84 	ehci_regs_t		*ehci_regsp;		/* Operational Regs */
85 
86 	ddi_acc_handle_t	ehci_config_handle;	/* Config space hndle */
87 	uint_t			ehci_frame_interval;	/* Frme inter reg */
88 	ddi_dma_attr_t		ehci_dma_attr;		/* DMA attributes */
89 
90 	ddi_intr_handle_t	*ehci_htable;		/* intr handle */
91 	int			ehci_intr_type;		/* intr type used */
92 	int			ehci_intr_cnt;		/* # of intrs inuse */
93 	uint_t			ehci_intr_pri;		/* intr priority */
94 	int			ehci_intr_cap;		/* intr capabilities */
95 	boolean_t		ehci_msi_enabled;	/* default to true */
96 	kmutex_t		ehci_int_mutex;		/* Global EHCI mutex */
97 
98 	/* Periodic Frame List area */
99 	ehci_periodic_frame_list_t	*ehci_periodic_frame_list_tablep;
100 				/* Virtual Periodic Frame List ptr */
101 	ddi_dma_cookie_t	ehci_pflt_cookie;	/* DMA cookie */
102 	ddi_dma_handle_t	ehci_pflt_dma_handle;	/* DMA handle */
103 	ddi_acc_handle_t	ehci_pflt_mem_handle;	/* Memory handle */
104 
105 	/*
106 	 * There are two pools of memory. One pool contains the memory for
107 	 * the transfer descriptors and other pool contains the memory for
108 	 * the endpoint descriptors. The advantage of the pools is that it's
109 	 * easy to go back and forth between the iommu and the cpu addresses.
110 	 *
111 	 * The pools are protected by the ehci_int_mutex because the memory
112 	 * in the pools may be accessed by either the host controller or the
113 	 * host controller driver.
114 	 */
115 
116 	/* Endpoint descriptor pool */
117 	ehci_qh_t		*ehci_qh_pool_addr;	/* Start of the pool */
118 	ddi_dma_cookie_t	ehci_qh_pool_cookie;	/* DMA cookie */
119 	ddi_dma_handle_t	ehci_qh_pool_dma_handle;	/* DMA handle */
120 	ddi_acc_handle_t	ehci_qh_pool_mem_handle;	/* Mem handle */
121 	uint_t			ehci_dma_addr_bind_flag;	/* DMA flag */
122 
123 	/* General transfer descriptor pool */
124 	ehci_qtd_t		*ehci_qtd_pool_addr;	/* Start of the pool */
125 	ddi_dma_cookie_t	ehci_qtd_pool_cookie;	/* DMA cookie */
126 	ddi_dma_handle_t	ehci_qtd_pool_dma_handle;	/* DMA hndle */
127 	ddi_acc_handle_t	ehci_qtd_pool_mem_handle;	/* Mem hndle */
128 
129 	/* Isochronous transfer descriptor pool */
130 	ehci_itd_t		*ehci_itd_pool_addr;	/* Start of the pool */
131 	ddi_dma_cookie_t	ehci_itd_pool_cookie;	/* DMA cookie */
132 	ddi_dma_handle_t	ehci_itd_pool_dma_handle;	/* DMA hndle */
133 	ddi_acc_handle_t	ehci_itd_pool_mem_handle;	/* Mem hndle */
134 
135 	/* Condition variable for advance on Asynchronous Schedule */
136 	kcondvar_t		ehci_async_schedule_advance_cv;
137 
138 	/* Head of Asynchronous Schedule List */
139 	ehci_qh_t		*ehci_head_of_async_sched_list;
140 
141 	/*
142 	 * List of QTD inserted either into Asynchronous or Periodic
143 	 * Schedule lists.
144 	 */
145 	ehci_qtd_t		*ehci_active_qtd_list;
146 	/*
147 	 * List of ITD active itd list.
148 	 */
149 	ehci_itd_t		*ehci_active_itd_list;
150 
151 	/*
152 	 * Bandwidth fields
153 	 *
154 	 * The ehci_bandwidth array keeps track of allocated bandwidth for
155 	 * ehci host controller. There are 32 bandwidth lists corresponding
156 	 * to 32 ms periodic frame lists. Each bandwidth list in turn will
157 	 * contain eight micro frame bandwidth lists.
158 	 *
159 	 * ehci_min_frame_bandwidth field indicates least allocated milli
160 	 * second bandwidth list.
161 	 */
162 	ehci_frame_bandwidth_t	ehci_frame_bandwidth[EHCI_NUM_INTR_QH_LISTS];
163 
164 	/* No. of open pipes, async qh, and periodic qh */
165 	uint_t			ehci_open_pipe_count;
166 	uint_t			ehci_open_async_count;
167 	uint_t			ehci_open_periodic_count;
168 
169 	/*
170 	 * Endpoint Reclamation List
171 	 *
172 	 * The interrupt list processing cannot be stopped when a periodic
173 	 * endpoint is removed from the list.  The endpoints are detached
174 	 * from the interrupt lattice tree and put on to the reclaimation
175 	 * list. On next SOF interrupt all those endpoints,  which are on
176 	 * the reclaimation list will be deallocated.
177 	 */
178 	ehci_qh_t		*ehci_reclaim_list;	/* Reclaimation list */
179 
180 	ehci_root_hub_t		ehci_root_hub;		/* Root hub info */
181 
182 	/* Frame number overflow information */
183 	usb_frame_number_t	ehci_fno;
184 
185 	/* For host controller error counter */
186 	uint_t			ehci_hc_error;
187 
188 	/*
189 	 * ehci_missed_intr_sts is used to save the normal mode interrupt
190 	 * status information  if an interrupt is pending for normal mode
191 	 * when polled code is entered.
192 	 */
193 	uint_t			ehci_missed_intr_sts;
194 
195 	/*
196 	 * Saved copy of the ehci registers of the normal mode & change
197 	 * required ehci registers values for the polled mode operation.
198 	 * Before returning from the polled mode to normal mode replace
199 	 * the required current registers with this saved ehci registers
200 	 * copy.
201 	 */
202 	ehci_regs_t	ehci_polled_save_regs;
203 
204 	/*
205 	 * Saved copy of the interrupt table used in normal ehci mode and
206 	 * replace this table by another interrupt table that used in the
207 	 * POLLED mode.
208 	 */
209 	ehci_qh_t *ehci_polled_frame_list_table[EHCI_NUM_PERIODIC_FRAME_LISTS];
210 
211 	/* ehci polled mode enter counter */
212 	uint_t			ehci_polled_enter_count;
213 
214 	/*
215 	 * counter for polled mode and used in suspend mode to see if
216 	 * there is a keyboard connected.
217 	 */
218 	uint_t			ehci_polled_kbd_count;
219 
220 	/* counter for polled read and use it to clean the interrupt status */
221 	uint_t			ehci_polled_read_count;
222 
223 #if defined(__x86)
224 	/* counter for polled root hub status */
225 	uint_t			ehci_polled_root_hub_count;
226 #endif	/* __x86 */
227 
228 	/* EHCI Host Controller Software State information */
229 	uint_t			ehci_hc_soft_state;
230 
231 	/* Log handle for debug, console, log messages */
232 	usb_log_handle_t	ehci_log_hdl;
233 
234 	/* Kstat structures */
235 	kstat_t			*ehci_intrs_stats;
236 	kstat_t			*ehci_total_stats;
237 	kstat_t			*ehci_count_stats[USB_N_COUNT_KSTATS];
238 } ehci_state_t;
239 
240 typedef struct ehci_intrs_stats {
241 	struct kstat_named	ehci_sts_async_sched_status;
242 	struct kstat_named	ehci_sts_periodic_sched_status;
243 	struct kstat_named	ehci_sts_empty_async_schedule;
244 	struct kstat_named	ehci_sts_host_ctrl_halted;
245 	struct kstat_named	ehci_sts_async_advance_intr;
246 	struct kstat_named	ehci_sts_host_system_error_intr;
247 	struct kstat_named	ehci_sts_frm_list_rollover_intr;
248 	struct kstat_named	ehci_sts_rh_port_change_intr;
249 	struct kstat_named	ehci_sts_usb_error_intr;
250 	struct kstat_named	ehci_sts_usb_intr;
251 	struct kstat_named	ehci_sts_not_claimed;
252 	struct kstat_named	ehci_sts_total;
253 } ehci_intrs_stats_t;
254 
255 /*
256  * ehci kstat defines
257  */
258 #define	EHCI_INTRS_STATS(ehci)	((ehci)->ehci_intrs_stats)
259 #define	EHCI_INTRS_STATS_DATA(ehci)	\
260 	((ehci_intrs_stats_t *)EHCI_INTRS_STATS((ehci))->ks_data)
261 
262 #define	EHCI_TOTAL_STATS(ehci)	((ehci)->ehci_total_stats)
263 #define	EHCI_TOTAL_STATS_DATA(ehci)	(KSTAT_IO_PTR((ehci)->ehci_total_stats))
264 #define	EHCI_CTRL_STATS(ehci)	\
265 	(KSTAT_IO_PTR((ehci)->ehci_count_stats[USB_EP_ATTR_CONTROL]))
266 #define	EHCI_BULK_STATS(ehci)	\
267 	(KSTAT_IO_PTR((ehci)->ehci_count_stats[USB_EP_ATTR_BULK]))
268 #define	EHCI_INTR_STATS(ehci)	\
269 	(KSTAT_IO_PTR((ehci)->ehci_count_stats[USB_EP_ATTR_INTR]))
270 #define	EHCI_ISOC_STATS(ehci)	\
271 	(KSTAT_IO_PTR((ehci)->ehci_count_stats[USB_EP_ATTR_ISOCH]))
272 
273 /* warlock directives, stable data */
274 _NOTE(MUTEX_PROTECTS_DATA(ehci_state_t::ehci_int_mutex, ehci_state_t))
275 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_intr_pri))
276 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_dip))
277 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_regsp))
278 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_instance))
279 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_vendor_id))
280 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_device_id))
281 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_rev_id))
282 
283 /* this may not be stable data in the future */
284 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_qtd_pool_addr))
285 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_qtd_pool_mem_handle))
286 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_qtd_pool_cookie))
287 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_qh_pool_addr))
288 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_qh_pool_mem_handle))
289 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_qh_pool_cookie))
290 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_itd_pool_addr))
291 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_itd_pool_mem_handle))
292 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_itd_pool_cookie))
293 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_dma_addr_bind_flag))
294 _NOTE(DATA_READABLE_WITHOUT_LOCK(ehci_state_t::ehci_log_hdl))
295 
296 _NOTE(LOCK_ORDER(ehci_state::ehci_int_mutex \
297 		usba_pipe_handle_data::p_mutex \
298 		usba_device::usb_mutex \
299 		usba_ph_impl::usba_ph_mutex))
300 
301 /*
302  * Host Contoller Software States
303  *
304  * EHCI_CTLR_INIT_STATE:
305  *	The host controller soft state will be set to this during the
306  *	ehci_attach.
307  *
308  * EHCI_CTLR_SUSPEND_STATE:
309  *	The host controller soft state will be set to this during the
310  *	ehci_cpr_suspend.
311  *
312  * EHCI_CTLR_OPERATIONAL_STATE:
313  *	The host controller soft state will be set to this after moving
314  *	host controller to operational state and host controller start
315  *	generating SOF successfully.
316  *
317  * EHCI_CTLR_ERROR_STATE:
318  *	The host controller soft state will be set to this during the
319  *	no SOF or UE error conditions.
320  *
321  *	Under this state or condition, only pipe stop polling, pipe reset
322  *	and pipe close are allowed. But all other entry points like  pipe
323  *	open, get/set pipe policy, cotrol send/receive, bulk send/receive
324  *	isoch send/receive, start polling etc. will fail.
325  *
326  * State Diagram for the host controller software state
327  *
328  *
329  * ehci_attach->[INIT_STATE]
330  *	|
331  *	|	-------->----[ERROR_STATE]--<-----------<---
332  *	|      |      Failure (UE/no SOF condition)	    |
333  *	|      ^					    ^
334  *	V      |      Success				    |
335  * ehci_init_ctlr--->--------[OPERATIONAL_STATE]------>-ehci_send/recv/polling
336  *	^					    |
337  *	|					    |
338  *	|					    V
339  *	-<-ehci_cpr_resume--[SUSPEND_STATE]-<-ehci_cpr_suspend
340  */
341 #define	EHCI_CTLR_INIT_STATE		0	/* Initilization state */
342 #define	EHCI_CTLR_SUSPEND_STATE		1	/* Suspend state */
343 #define	EHCI_CTLR_OPERATIONAL_STATE	2	/* Operational state */
344 #define	EHCI_CTLR_ERROR_STATE		3	/* Ue error or no sof state */
345 
346 /*
347  * Flags for initializatoin of host controller
348  */
349 #define	EHCI_NORMAL_INITIALIZATION	0	/* Normal initialization */
350 #define	EHCI_REINITIALIZATION		1	/* Re-initialization */
351 
352 /*
353  * Periodic and non-periodic macros
354  */
355 #define	EHCI_PERIODIC_ENDPOINT(endpoint) (((endpoint->bmAttributes &\
356 				USB_EP_ATTR_MASK) == USB_EP_ATTR_INTR) ||\
357 				((endpoint->bmAttributes &\
358 				USB_EP_ATTR_MASK) == USB_EP_ATTR_ISOCH))
359 
360 #define	EHCI_NON_PERIODIC_ENDPOINT(endpoint) (((endpoint->bmAttributes &\
361 				USB_EP_ATTR_MASK) == USB_EP_ATTR_CONTROL) ||\
362 				((endpoint->bmAttributes &\
363 				USB_EP_ATTR_MASK) == USB_EP_ATTR_BULK))
364 
365 #define	EHCI_ISOC_ENDPOINT(endpoint) (((endpoint->bmAttributes &\
366 				USB_EP_ATTR_MASK) == USB_EP_ATTR_ISOCH))
367 
368 #define	EHCI_INTR_ENDPOINT(endpoint) (((endpoint->bmAttributes &\
369 				USB_EP_ATTR_MASK) == USB_EP_ATTR_INTR))
370 
371 
372 /*
373  * EHCI QH and QTD Pool sizes.
374  */
375 #define	EHCI_QH_POOL_SIZE	100
376 #define	EHCI_QTD_POOL_SIZE	200
377 #define	EHCI_ITD_POOL_SIZE	200
378 
379 /*
380  * ehci_dma_addr_bind_flag values
381  *
382  * This flag indicates if the various DMA addresses allocated by the EHCI
383  * have been bound to their respective handles. This is needed to recover
384  * without errors from ehci_cleanup when it calls ddi_dma_unbind_handle()
385  */
386 #define	EHCI_QTD_POOL_BOUND	0x01	/* For QTD pools  */
387 #define	EHCI_QH_POOL_BOUND	0x02	/* For QH pools  */
388 #define	EHCI_PFLT_DMA_BOUND	0x04	/* For Periodic Frame List area */
389 #define	EHCI_ITD_POOL_BOUND	0x08	/* For QTD pools  */
390 
391 /*
392  * Maximum SOF wait count
393  */
394 #define	MAX_SOF_WAIT_COUNT	2	/* Wait for maximum SOF frames */
395 
396 /*
397  * One uFrame	125 micro seconds
398  * One Frame	1 milli second or 8 uFrames
399  */
400 #define	EHCI_uFRAMES_PER_USB_FRAME		8
401 #define	EHCI_uFRAMES_PER_USB_FRAME_SHIFT	3
402 
403 
404 /*
405  * Pipe private structure
406  *
407  * There is an instance of this structure per pipe.  This structure holds
408  * HCD specific pipe information.  A pointer to this structure is kept in
409  * the USBA pipe handle (usba_pipe_handle_data_t).
410  */
411 typedef struct ehci_pipe_private {
412 	usba_pipe_handle_data_t	*pp_pipe_handle;	/* Back ptr to handle */
413 	ehci_qh_t		*pp_qh;			/* Pipe's qh */
414 
415 	/* State of the pipe */
416 	uint_t			pp_state;		/* See below */
417 
418 	/* Local copy of the pipe policy */
419 	usb_pipe_policy_t	pp_policy;
420 
421 	/* For Periodic Pipes Only */
422 	uint_t			pp_pnode;		/* periodic node */
423 	uchar_t			pp_smask;		/* Start split mask */
424 	uchar_t			pp_cmask;		/* Comp split mask */
425 	uint_t			pp_cur_periodic_req_cnt; /* Curr req count */
426 	uint_t			pp_max_periodic_req_cnt; /* Max req count */
427 
428 	/* For Isochronous pipes only */
429 	usb_frame_number_t	pp_next_frame_number;	/* Next frame no */
430 
431 	/*
432 	 * Each pipe may have multiple transfer wrappers. Each transfer
433 	 * wrapper represents a USB transfer on the bus.  A transfer is
434 	 * made up of one or more transactions.
435 	 */
436 	struct ehci_trans_wrapper *pp_tw_head;	/* Head of the list */
437 	struct ehci_trans_wrapper *pp_tw_tail;	/* Tail of the list */
438 
439 	struct ehci_isoc_xwrapper *pp_itw_head;	/* Head of the list */
440 	struct ehci_isoc_xwrapper *pp_itw_tail;	/* Tail of the list */
441 
442 	/*
443 	 * Pipe's transfer timeout handling & this transfer timeout handling
444 	 * will be per pipe.
445 	 */
446 	struct ehci_trans_wrapper *pp_timeout_list;	/* Timeout list */
447 	timeout_id_t		pp_timer_id;		/* Timer id  */
448 
449 	/* Done td count */
450 	uint_t			pp_count_done_qtds;	/* Done td count */
451 
452 	/* Errors */
453 	usb_cr_t		pp_error;		/* Pipe error */
454 
455 	/* Condition variable for transfers completion event */
456 	kcondvar_t		pp_xfer_cmpl_cv;	/* Xfer completion */
457 
458 	/* Pipe flag */
459 	uint_t			pp_flag;		/* For polled mode */
460 
461 	/* Halting States */
462 	uint_t			pp_halt_state;		/* Is it halting */
463 
464 	/* Condition variable for halt completion event */
465 	kcondvar_t		pp_halt_cmpl_cv;	/* Xfer completion */
466 
467 	/*
468 	 * HCD gets Interrupt/Isochronous IN polling request only once and
469 	 * it has to insert next polling requests after completion of first
470 	 * request until either stop polling/pipe close is called. So  HCD
471 	 * has to take copy of the original Interrupt/Isochronous IN request.
472 	 */
473 	usb_opaque_t		pp_client_periodic_in_reqp;
474 } ehci_pipe_private_t;
475 
476 _NOTE(MUTEX_PROTECTS_DATA(ehci_state_t::ehci_int_mutex, ehci_pipe_private_t))
477 
478 /*
479  * Pipe states
480  *
481  * ehci pipe states will be similar to usba. Refer usbai.h.
482  */
483 #define	EHCI_PIPE_STATE_IDLE		1	/* Pipe is in ready state */
484 #define	EHCI_PIPE_STATE_ACTIVE		2	/* Pipe is in busy state */
485 #define	EHCI_PIPE_STATE_ERROR		3	/* Pipe is in error state */
486 
487 /* Additional ehci pipe states for the ehci_pipe_cleanup */
488 #define	EHCI_PIPE_STATE_CLOSE		4	/* Pipe close */
489 #define	EHCI_PIPE_STATE_RESET		5	/* Pipe reset */
490 #define	EHCI_PIPE_STATE_STOP_POLLING	6	/* Pipe stop polling */
491 
492 /*
493  * Pipe flag
494  *
495  * For polled mode flag.
496  */
497 #define	EHCI_POLLED_MODE_FLAG		1	/* Polled mode flag */
498 
499 /* Pipe specific flags */
500 #define	EHCI_ISOC_XFER_CONTINUE		1	/* For isoc transfers */
501 
502 /*
503  * Halting States
504  *  prevent halting from interleaving.
505  */
506 #define	EHCI_HALT_STATE_FREE		0	/* Pipe free to accept reqs */
507 #define	EHCI_HALT_STATE_HALTING		1	/* Currently Halting */
508 
509 /*
510  * Request values for Clear_TT_Buffer
511  */
512 #define	EHCI_CLEAR_TT_BUFFER_REQTYPE	(USB_DEV_REQ_TYPE_CLASS | \
513 					USB_DEV_REQ_RCPT_OTHER)
514 #define	EHCI_CLEAR_TT_BUFFER_BREQ	8
515 
516 /*
517  * USB frame offset
518  *
519  * Add appropriate frame offset to the current usb frame number and use it
520  * as a starting frame number for a given usb isochronous request.
521  */
522 #define	EHCI_FRAME_OFFSET		2	/* Frame offset */
523 
524 /*
525  * Different interrupt polling intervals supported for high speed
526  * devices and its range must be from 1 to 16 units. This value is
527  * used as th exponent for a 2 ^ (bInterval - 1). Ex: a Binterval
528  * of 4 means a period of 8us (2 ^ (4-1)).
529  *
530  * The following values are defined after above convertion in terms
531  * 125us units.
532  */
533 #define	EHCI_INTR_1US_POLL		1	/* 1us poll interval */
534 #define	EHCI_INTR_2US_POLL		2	/* 2us poll interval */
535 #define	EHCI_INTR_4US_POLL		4	/* 4us poll interval */
536 #define	EHCI_INTR_XUS_POLL		8	/* 8us and above */
537 
538 /*
539  * The following indecies are are used to calculate Start and complete
540  * masks as per the polling interval.
541  */
542 #define	EHCI_1US_MASK_INDEX		14	/* 1us mask index */
543 #define	EHCI_2US_MASK_INDEX		12	/* 2us mask index */
544 #define	EHCI_4US_MASK_INDEX		8	/* 4us mask index */
545 #define	EHCI_XUS_MASK_INDEX		0	/* 8us and above */
546 
547 /*
548  * Different interrupt polling intervals supported for low/full/high
549  * speed devices. For high speed devices, the following values are
550  * applicable after convertion.
551  */
552 #define	EHCI_INTR_1MS_POLL		1	/* 1ms poll interval */
553 #define	EHCI_INTR_2MS_POLL		2	/* 2ms poll interval */
554 #define	EHCI_INTR_4MS_POLL		4	/* 4ms poll interval */
555 #define	EHCI_INTR_8MS_POLL		8	/* 8ms poll interval */
556 #define	EHCI_INTR_16MS_POLL		16	/* 16ms poll interval */
557 #define	EHCI_INTR_32MS_POLL		32	/* 32ms poll interval */
558 
559 /*
560  * Number of interrupt transfer requests that should be maintained on
561  * the interrupt endpoint corresponding to different polling intervals
562  * supported.
563  */
564 #define	EHCI_INTR_1MS_REQS		4	/* 1ms polling interval */
565 #define	EHCI_INTR_2MS_REQS		2	/* 2ms polling interval */
566 #define	EHCI_INTR_XMS_REQS		1	/* Between 4ms and 32ms */
567 
568 /* Function prototype */
569 typedef void (*ehci_handler_function_t)(
570 	ehci_state_t			*ehcip,
571 	ehci_pipe_private_t		*pp,
572 	struct ehci_trans_wrapper	*tw,
573 	ehci_qtd_t			*qtd,
574 	void				*ehci_handle_callback_value);
575 
576 
577 /*
578  * Transfer wrapper
579  *
580  * The transfer wrapper represents a USB transfer on the bus and there
581  * is one instance per USB transfer.  A transfer is made up of one or
582  * more transactions. EHCI uses one QTD for one transaction. So one
583  * transfer wrapper may have one or more QTDs associated.
584  *
585  * The data to be transferred are contained in the TW buffer which is
586  * virtually contiguous but physically discontiguous. When preparing
587  * the QTDs for a USB transfer, the DMA cookies corresponding to the
588  * TW buffer need to be walked through to retrieve the DMA addresses.
589  *
590  * Control and bulk pipes will have one transfer wrapper per transfer
591  * and where as Isochronous and Interrupt pipes will only have one
592  * transfer wrapper. The transfers wrapper are continually reused for
593  * the Interrupt and Isochronous pipes as those pipes are polled.
594  */
595 typedef struct ehci_trans_wrapper {
596 	struct ehci_trans_wrapper	*tw_next;	/* Next wrapper */
597 	ehci_pipe_private_t		*tw_pipe_private; /* Back ptr */
598 	ddi_dma_handle_t		tw_dmahandle;	/* DMA handle */
599 	ddi_acc_handle_t		tw_accesshandle; /* Acc hndle */
600 	ddi_dma_cookie_t		tw_cookie;	/* DMA cookie */
601 	uint_t				tw_ncookies;	/* DMA cookie count */
602 	uint_t				tw_cookie_idx;	/* DMA cookie index */
603 	size_t				tw_dma_offs;	/* DMA buffer offset */
604 	uint32_t			tw_id;		/* 32bit ID */
605 	size_t				tw_length;	/* Txfer length */
606 	char				*tw_buf;	/* Buffer for Xfer */
607 	usb_flags_t			tw_flags;	/* Flags */
608 	uint_t				tw_num_qtds;	/* Number of QTDs */
609 	ehci_qtd_t			*tw_qtd_head;	/* Head QTD */
610 	ehci_qtd_t			*tw_qtd_tail;	/* Tail QTD */
611 	uint_t				tw_direction;	/* Direction of QTD */
612 
613 	/* Current transfer request pointer */
614 	usb_opaque_t			tw_curr_xfer_reqp;
615 
616 	/* Transfer timeout information */
617 	int				tw_timeout;	/* Timeout value */
618 	struct ehci_trans_wrapper	*tw_timeout_next; /* Xfer Timeout Q */
619 
620 	/*
621 	 * This is the function to call when this td is done. This way
622 	 * we don't have to look in the td to figure out what kind it is.
623 	 */
624 	ehci_handler_function_t		tw_handle_qtd;
625 
626 	/*
627 	 * This is the callback value used when processing a done td.
628 	 */
629 	usb_opaque_t			tw_handle_callback_value;
630 
631 	/* We preallocate all the td's for each tw and place them here */
632 	ehci_qtd_t			*tw_qtd_free_list;
633 	ehci_qtd_t			*tw_alt_qtd;
634 } ehci_trans_wrapper_t;
635 
636 _NOTE(MUTEX_PROTECTS_DATA(ehci_state_t::ehci_int_mutex, ehci_trans_wrapper))
637 
638 /*
639  * Isochronous Transfer Wrapper
640  *
641  * This transfer wrapper is built specifically for the LOW/FULL/HIGH speed
642  * isochronous transfers.  A transfer wrapper consists of one or more
643  * transactionsl, but there is one one instance per USB transfer request.
644  *
645  * The isochrnous transfer wrapper are continiously reused because these
646  * pipes are polled.
647  */
648 typedef struct ehci_isoc_xwrapper {
649 	struct ehci_isoc_xwrapper	*itw_next;	/* Next wrapper in pp */
650 	ehci_pipe_private_t		*itw_pipe_private;
651 
652 	/* DMA and memory pointers */
653 	ddi_dma_handle_t		itw_dmahandle;	/* DMA handle ETT */
654 	ddi_acc_handle_t		itw_accesshandle; /* Acc hndle */
655 	ddi_dma_cookie_t		itw_cookie;	/* DMA cookie */
656 
657 	/* Transfer information */
658 	char				*itw_buf;	/* Buffer for Xfer */
659 	size_t				itw_length;	/* Txfer length */
660 	usb_flags_t			itw_flags;	/* Flags */
661 	usb_port_status_t		itw_port_status; /* Port Speed */
662 	uint_t				itw_direction;	/* Direction of ITD */
663 
664 	/* ITD information */
665 	uint_t				itw_num_itds;	/* Number of ITDs */
666 	ehci_itd_t			*itw_itd_head;	/* Head ITD */
667 	ehci_itd_t			*itw_itd_tail;	/* Tail ITD */
668 	usb_isoc_req_t			*itw_curr_xfer_reqp;
669 	usb_isoc_pkt_descr_t		*itw_curr_isoc_pktp;
670 
671 	/* We preallocate all the td's for each tw and place them here */
672 	ehci_itd_t			*itw_itd_free_list;
673 
674 	/* Device and hub information needed by every iTD */
675 	uint_t				itw_hub_addr;
676 	uint_t				itw_hub_port;
677 	uint_t				itw_endpoint_num;
678 	uint_t				itw_device_addr;
679 
680 	/*
681 	 * Callback handling function and arguement.  Called when an iTD is
682 	 * is done.
683 	 */
684 	usb_opaque_t			itw_handle_callback_value;
685 
686 	/* 32bit ID */
687 	uint32_t			itw_id;
688 } ehci_isoc_xwrapper_t;
689 
690 _NOTE(MUTEX_PROTECTS_DATA(ehci_state_t::ehci_int_mutex, ehci_isoc_xwrapper_t))
691 
692 /*
693  * Time waits for the different EHCI specific operations.
694  * These timeout values are specified in terms of microseconds.
695  */
696 #define	EHCI_RESET_TIMEWAIT	10000	/* HC reset waiting time */
697 #define	EHCI_TIMEWAIT		10000	/* HC any other waiting time */
698 #define	EHCI_SOF_TIMEWAIT	20000	/* SOF Wait time */
699 #define	EHCI_TAKEOVER_DELAY	10000	/* HC take over waiting time */
700 #define	EHCI_TAKEOVER_WAIT_COUNT	25	/* HC take over waiting count */
701 
702 /* These timeout values are specified in seconds */
703 #define	EHCI_DEFAULT_XFER_TIMEOUT	5 /* Default transfer timeout */
704 #define	EHCI_XFER_CMPL_TIMEWAIT		3 /* Xfers completion timewait */
705 
706 /* EHCI flags for general use */
707 #define	EHCI_FLAGS_NOSLEEP	0x000	/* Don't wait for SOF */
708 #define	EHCI_FLAGS_SLEEP	0x100	/* Wait for SOF */
709 #define	EHCI_FLAGS_DMA_SYNC	0x200	/* Call ddi_dma_sync */
710 
711 /*
712  * Maximum allowable data transfer  size per transaction as supported
713  * by EHCI is 20k. (See EHCI Host Controller Interface Spec Rev 0.96)
714  *
715  * Also within QTD, there will be five buffer pointers abd each buffer
716  * pointer can transfer upto 4k bytes of data.
717  */
718 #define	EHCI_MAX_QTD_XFER_SIZE	0x5000	/* Maxmum data per transaction */
719 #define	EHCI_MAX_QTD_BUF_SIZE	0x1000	/* Maxmum data per buffer */
720 
721 /*
722  * The maximum allowable bulk data transfer size. It can be different
723  * from EHCI_MAX_QTD_XFER_SIZE and if it is more then ehci driver will
724  * take care of  breaking a bulk data request into  multiples of ehci
725  * EHCI_MAX_QTD_XFER_SIZE  until request is satisfied.	Currently this
726  * value is set to 640k bytes.
727  */
728 #define	EHCI_MAX_BULK_XFER_SIZE	0xA0000	/* Maximum bulk transfer size */
729 
730 /*
731  * Timeout flags
732  *
733  * These flags will be used to stop the timer before timeout handler
734  * gets executed.
735  */
736 #define	EHCI_REMOVE_XFER_IFLAST	1	/* Stop the timer if it is last QTD */
737 #define	EHCI_REMOVE_XFER_ALWAYS	2	/* Stop the timer without condition */
738 
739 
740 /*
741  * High speed bandwidth allocation
742  *
743  * The following definitions are used during bandwidth calculations
744  * for a given high speed endpoint or high speed split transactions.
745  */
746 #define	HS_BUS_BANDWIDTH	7500	/* Up to 7500 bytes per 125us */
747 #define	HS_MAX_POLL_INTERVAL	16	/* Max high speed polling interval */
748 #define	HS_MIN_POLL_INTERVAL	1	/* Min high speed polling interval */
749 #define	HS_SOF			12	/* Length in bytes of High speed SOF */
750 #define	HS_EOF			70	/* Length in bytes of High speed EOF */
751 #define	TREE_HEIGHT		5	/* Log base 2 of 32 */
752 
753 /*
754  * As per USB 2.0 specification section 5.5.4, 20% of bus time is reserved
755  * for the non-periodic high-speed transfers. Where as peridoic high-speed
756  * transfers will get 80% of the bus time. In one micro-frame or 125us, we
757  * can transfer 7500 bytes or 60,000 bits.
758  */
759 #define	HS_NON_PERIODIC_BANDWIDTH	1500
760 #define	HS_PERIODIC_BANDWIDTH		(HS_BUS_BANDWIDTH - HS_SOF - \
761 					HS_EOF - HS_NON_PERIODIC_BANDWIDTH)
762 
763 /*
764  * High speed periodic frame bandwidth will be eight times the micro frame
765  * high speed periodic bandwidth.
766  */
767 #define	HS_PERIODIC_FRAME_BANDWIDTH	HS_PERIODIC_BANDWIDTH * EHCI_MAX_UFRAMES
768 
769 /*
770  * The following are the protocol overheads in terms of Bytes for the
771  * different transfer types.  All these protocol overhead  values are
772  * derived from the 5.11.3 section of USB 2.0 Specification.
773  */
774 #define	HS_NON_ISOC_PROTO_OVERHEAD	55
775 #define	HS_ISOC_PROTO_OVERHEAD		38
776 
777 /*
778  * The following are THE protocol overheads in terms of Bytes for the
779  * start and complete split transactions tokens overheads.  All these
780  * protocol overhead values are derived from the 8.4.2.2 and 8.4.2.3
781  * of USB2.0 Specification.
782  */
783 #define	START_SPLIT_OVERHEAD		04
784 #define	COMPLETE_SPLIT_OVERHEAD		04
785 
786 /*
787  * The Host Controller (HC) delays are the USB host controller specific
788  * delays. The value shown below is the host  controller delay for  the
789  * given EHCI host controller.
790  */
791 #define	EHCI_HOST_CONTROLLER_DELAY	18
792 
793 /*
794  * Low/Full speed bandwidth allocation
795  *
796  * The following definitions are used during bandwidth calculations for
797  * a given high speed hub or  a transaction translator	(TT) and  for a
798  * given low/full speed device connected to high speed hub or TT  using
799  * split transactions
800  */
801 #define	FS_BUS_BANDWIDTH	1500	/* Up to 1500 bytes per 1ms */
802 #define	FS_MAX_POLL_INTERVAL	255	/* Max full speed poll interval */
803 #define	FS_MIN_POLL_INTERVAL	1	/* Min full speed polling interval */
804 #define	FS_SOF			6	/* Length in bytes of Full speed SOF */
805 #define	FS_EOF			4	/* Length in bytes of Full speed EOF */
806 
807 /*
808  * Minimum polling interval for low speed endpoint
809  *
810  * According USB 2.0 Specification, a full-speed endpoint can specify
811  * a desired polling interval 1ms to 255ms and a low speed endpoints
812  * are limited to specifying only 10ms to 255ms. But some old keyboards
813  * and mice uses polling interval of 8ms. For compatibility purpose,
814  * we are using polling interval between 8ms and 255ms for low speed
815  * endpoints. The ehci driver will use 8ms polling interval if a low
816  * speed device reports a polling interval that is less than 8ms.
817  */
818 #define	LS_MAX_POLL_INTERVAL	255	/* Max low speed poll interval */
819 #define	LS_MIN_POLL_INTERVAL	8	/* Min low speed polling interval */
820 
821 /*
822  * For non-periodic transfers, reserve atleast for one low-speed device
823  * transaction. According to USB Bandwidth Analysis white paper and also
824  * as per OHCI Specification 1.0a, section 7.3.5, page 123, one low-speed
825  * transaction takes 0x628h full speed bits (197 bytes), which comes to
826  * around 13% of USB frame time.
827  *
828  * The periodic transfers will	get around 87% of USB frame time.
829  */
830 #define	FS_NON_PERIODIC_BANDWIDTH	197
831 #define	FS_PERIODIC_BANDWIDTH		(FS_BUS_BANDWIDTH - FS_SOF - \
832 					FS_EOF - FS_NON_PERIODIC_BANDWIDTH)
833 
834 /*
835  * The following are the protocol overheads in terms of Bytes for the
836  * different transfer types.  All these protocol overhead  values are
837  * derived from the 5.11.3 section of USB Specification	and  with the
838  * help of Bandwidth Analysis white paper which is posted on the  USB
839  * developer forum.
840  */
841 #define	FS_NON_ISOC_PROTO_OVERHEAD	14
842 #define	FS_ISOC_INPUT_PROTO_OVERHEAD	11
843 #define	FS_ISOC_OUTPUT_PROTO_OVERHEAD	10
844 #define	LOW_SPEED_PROTO_OVERHEAD	97
845 #define	HUB_LOW_SPEED_PROTO_OVERHEAD	01
846 
847 /* The maximum amount of isoch data that can be transferred in one uFrame */
848 #define	MAX_UFRAME_SITD_XFER		188
849 
850 /*
851  * The low speed clock below represents that to transmit one low-speed
852  * bit takes eight times more than one full speed bit time.
853  */
854 #define	LOW_SPEED_CLOCK			8
855 
856 /*
857  * The Transaction Translator (TT) delay is the additional time needed
858  * to execute low/full speed transaction from high speed split transaction
859  * for the low/full device connected to the high speed extrenal hub.
860  */
861 #define	TT_DELAY			18
862 
863 
864 /*
865  * Macros for setting/getting information
866  */
867 #define	Get_QH(addr)		ddi_get32(ehcip->ehci_qh_pool_mem_handle, \
868 					(uint32_t *)&addr)
869 
870 #define	Set_QH(addr, val)	ddi_put32(ehcip->ehci_qh_pool_mem_handle,  \
871 					((uint32_t *)&addr), \
872 					((int32_t)(val)))
873 
874 #define	Get_QTD(addr)		ddi_get32(ehcip->ehci_qtd_pool_mem_handle, \
875 					(uint32_t *)&addr)
876 
877 #define	Set_QTD(addr, val)	ddi_put32(ehcip->ehci_qtd_pool_mem_handle, \
878 					((uint32_t *)&addr), \
879 					((int32_t)(val)))
880 
881 #define	Get_ITD(addr)		ddi_get32(ehcip->ehci_itd_pool_mem_handle, \
882 					(uint32_t *)&addr)
883 
884 #define	Set_ITD(addr, val)	ddi_put32(ehcip->ehci_itd_pool_mem_handle, \
885 					((uint32_t *)&addr), \
886 					((int32_t)(val)))
887 
888 #define	Get_ITD_BODY(ptr, addr)		ddi_get32( \
889 					    ehcip->ehci_itd_pool_mem_handle, \
890 					    (uint32_t *)&ptr->itd_body[addr])
891 
892 #define	Set_ITD_BODY(ptr, addr, val)	ddi_put32( \
893 					    ehcip->ehci_itd_pool_mem_handle, \
894 					    ((uint32_t *)&ptr->itd_body[addr]),\
895 					    ((int32_t)(val)))
896 
897 #define	Get_ITD_INDEX(ptr, pos)		ddi_get32( \
898 					    ehcip->ehci_itd_pool_mem_handle, \
899 					    (uint32_t *)&ptr->itd_index[pos])
900 
901 #define	Set_ITD_INDEX(ptr, pos, val)	ddi_put32( \
902 					    ehcip->ehci_itd_pool_mem_handle, \
903 					    ((uint32_t *)&ptr->itd_index[pos]),\
904 					    ((uint32_t)(val)))
905 
906 #define	Get_ITD_FRAME(addr)		ddi_get64( \
907 					    ehcip->ehci_itd_pool_mem_handle, \
908 					    (uint64_t *)&addr)
909 
910 #define	Set_ITD_FRAME(addr, val)	ddi_put64( \
911 					    ehcip->ehci_itd_pool_mem_handle, \
912 					    ((uint64_t *)&addr), \
913 					    (val))
914 
915 #define	Get_PFLT(addr)		ddi_get32(ehcip->ehci_pflt_mem_handle, \
916 					(uint32_t *)&addr)
917 
918 #define	Set_PFLT(addr, val)	ddi_put32(ehcip->ehci_pflt_mem_handle, \
919 					((uint32_t *)&addr), \
920 					((int32_t)(uintptr_t)(val)))
921 
922 #define	Get_8Cap(addr)		ddi_get8(ehcip->ehci_caps_handle, \
923 					(uint8_t *)&ehcip->ehci_capsp->addr)
924 
925 #define	Get_16Cap(addr)		ddi_get16(ehcip->ehci_caps_handle, \
926 					(uint16_t *)&ehcip->ehci_capsp->addr)
927 
928 #define	Get_Cap(addr)		ddi_get32(ehcip->ehci_caps_handle, \
929 					(uint32_t *)&ehcip->ehci_capsp->addr)
930 
931 #define	Get_OpReg(addr)		ddi_get32(ehcip->ehci_caps_handle, \
932 					(uint32_t *)&ehcip->ehci_regsp->addr)
933 
934 #define	Set_OpReg(addr, val)	ddi_put32(ehcip->ehci_caps_handle, \
935 				((uint32_t *)&ehcip->ehci_regsp->addr), \
936 					((int32_t)(val)))
937 
938 #define	CalculateITDMultiField(pkgSize)		(1 + (((pkgSize)>>11) & 0x03))
939 
940 #define	EHCI_MAX_RETRY		10
941 
942 #define	Set_OpRegRetry(addr, val, r) \
943 				while (Get_OpReg(addr) != val) { \
944 					if (r >= EHCI_MAX_RETRY) \
945 						break; \
946 					r++; \
947 					Set_OpReg(addr, val); \
948 				}
949 
950 #define	Sync_QH_QTD_Pool(ehcip) (void) ddi_dma_sync( \
951 				ehcip->ehci_qh_pool_dma_handle, \
952 				0, EHCI_QH_POOL_SIZE * sizeof (ehci_qh_t), \
953 				DDI_DMA_SYNC_FORCPU); \
954 				(void) ddi_dma_sync( \
955 				ehcip->ehci_qtd_pool_dma_handle, \
956 				0, EHCI_QTD_POOL_SIZE * sizeof (ehci_qtd_t), \
957 				DDI_DMA_SYNC_FORCPU);
958 
959 #define	Sync_ITD_Pool(ehcip) (void) ddi_dma_sync( \
960 				ehcip->ehci_itd_pool_dma_handle, \
961 				0, EHCI_ITD_POOL_SIZE * sizeof (ehci_itd_t), \
962 				DDI_DMA_SYNC_FORCPU);
963 
964 #define	Sync_IO_Buffer(dma_handle, length) \
965 				(void) ddi_dma_sync(dma_handle, \
966 				0, length, DDI_DMA_SYNC_FORCPU);
967 
968 #define	Sync_IO_Buffer_for_device(dma_handle, length) \
969 				(void) ddi_dma_sync(dma_handle, \
970 				0, length, DDI_DMA_SYNC_FORDEV);
971 
972 /*
973  * Macros to speed handling of 32bit IDs
974  */
975 #define	EHCI_GET_ID(x)		id32_alloc((void *)(x), KM_SLEEP)
976 #define	EHCI_LOOKUP_ID(x)	id32_lookup((x))
977 #define	EHCI_FREE_ID(x)		id32_free((x))
978 
979 
980 /*
981  * Miscellaneous definitions.
982  */
983 
984 /* Data toggle bits */
985 #define	DATA0		0
986 #define	DATA1		1
987 
988 /* Halt bit actions */
989 #define	CLEAR_HALT	0
990 #define	SET_HALT	1
991 
992 typedef uint_t		halt_bit_t;
993 
994 /*
995  * Setup Packet
996  */
997 typedef struct setup_pkt {
998 	uchar_t	bmRequestType;
999 	uchar_t	bRequest;
1000 	ushort_t wValue;
1001 	ushort_t wIndex;
1002 	ushort_t wLength;
1003 }setup_pkt_t;
1004 
1005 #define	SETUP_SIZE		8	/* Setup packet is always 8 bytes */
1006 
1007 #define	REQUEST_TYPE_OFFSET	0
1008 #define	REQUEST_OFFSET		1
1009 #define	VALUE_OFFSET		2
1010 #define	INDEX_OFFSET		4
1011 #define	LENGTH_OFFSET		6
1012 
1013 #define	TYPE_DEV_TO_HOST	0x80000000
1014 #define	DEVICE			0x00000001
1015 #define	CONFIGURATION		0x00000002
1016 
1017 /*
1018  * The following are used in attach to	 indicate
1019  * what has been succesfully allocated, so detach
1020  * can remove them.
1021  */
1022 #define	EHCI_ATTACH		0x01	/* ehci driver initilization */
1023 #define	EHCI_ZALLOC		0x02	/* Memory for ehci state structure */
1024 #define	EHCI_INTR		0x04	/* Interrupt handler registered */
1025 #define	EHCI_USBAREG		0x08	/* USBA registered */
1026 #define	EHCI_RHREG		0x10	/* Root hub driver loaded */
1027 
1028 /*
1029  * This variable is used in the EHCI_FLAGS to tell the ISR to broadcase
1030  * the ehci_async_schedule_advance_cv when an intr occurs.  It is used to
1031  * make sure that EHCI is receiving interrupts.
1032  */
1033 #define	EHCI_CV_INTR		0x20	/* Ask INTR to broadcast cv */
1034 
1035 #define	EHCI_UNIT(dev)	(getminor((dev)) & ~HUBD_IS_ROOT_HUB)
1036 
1037 /*
1038  * Debug printing
1039  * Masks
1040  */
1041 #define	PRINT_MASK_ATTA		0x00000001	/* Attach time */
1042 #define	PRINT_MASK_LISTS	0x00000002	/* List management */
1043 #define	PRINT_MASK_ROOT_HUB	0x00000004	/* Root hub stuff */
1044 #define	PRINT_MASK_ALLOC	0x00000008	/* Alloc/dealloc descr */
1045 #define	PRINT_MASK_INTR		0x00000010	/* Interrupt handling */
1046 #define	PRINT_MASK_BW		0x00000020	/* Bandwidth */
1047 #define	PRINT_MASK_CBOPS	0x00000040	/* CB-OPS */
1048 #define	PRINT_MASK_HCDI		0x00000080	/* HCDI entry points */
1049 #define	PRINT_MASK_DUMPING	0x00000100	/* Dump ehci info */
1050 #define	PRINT_MASK_ALL		0xFFFFFFFF
1051 
1052 #define	PCI_VENDOR_NVIDIA	0x10de		/* PCI Vendor-id NVIDIA */
1053 #define	PCI_DEVICE_NVIDIA_CK804	0x5b
1054 #define	PCI_DEVICE_NVIDIA_MCP04	0x3c
1055 /*
1056  * workaround for ALI chips
1057  */
1058 #define	PCI_VENDOR_ALI		0x10b9		/* PCI Vendor-id Acer */
1059 
1060 /*
1061  * NEC on COMBO and Uli M1575 can support PM
1062  */
1063 #define	PCI_VENDOR_NEC_COMBO	0x1033
1064 #define	PCI_DEVICE_NEC_COMBO	0xe0
1065 #define	PCI_VENDOR_ULi_M1575	0x10b9
1066 #define	PCI_DEVICE_ULi_M1575	0x5239
1067 
1068 /*
1069  * VIA chips have some problems, the workaround can ensure those chips
1070  * work reliably. Revisions >= 0x80 are part of a southbridge and appear
1071  * to be reliable.
1072  */
1073 #define	PCI_VENDOR_VIA		0x1106		/* PCI Vendor-id VIA */
1074 #define	PCI_VIA_REVISION_6212	0x80		/* VIA 6212 revision ID */
1075 
1076 #define	EHCI_VIA_LOST_INTERRUPTS	0x01
1077 #define	EHCI_VIA_ASYNC_SCHEDULE		0x02
1078 #define	EHCI_VIA_REDUCED_MAX_BULK_XFER_SIZE	0x04
1079 
1080 #define	EHCI_VIA_WORKAROUNDS \
1081 	(EHCI_VIA_LOST_INTERRUPTS | \
1082 	EHCI_VIA_ASYNC_SCHEDULE | \
1083 	EHCI_VIA_REDUCED_MAX_BULK_XFER_SIZE)
1084 
1085 #define	EHCI_VIA_MAX_BULK_XFER_SIZE 0x8000 /* Maximum bulk transfer size */
1086 
1087 
1088 /*
1089  * EHCI HCDI entry points
1090  *
1091  * The Host Controller Driver Interfaces (HCDI) are the software interfaces
1092  * between the Universal Serial Bus Driver (USBA) and the Host	Controller
1093  * Driver (HCD). The HCDI interfaces or entry points are subject to change.
1094  */
1095 int		ehci_hcdi_pipe_open(
1096 				usba_pipe_handle_data_t	*ph,
1097 				usb_flags_t		usb_flags);
1098 int		ehci_hcdi_pipe_close(
1099 				usba_pipe_handle_data_t	*ph,
1100 				usb_flags_t		usb_flags);
1101 int		ehci_hcdi_pipe_reset(
1102 				usba_pipe_handle_data_t	*ph,
1103 				usb_flags_t		usb_flags);
1104 void		ehci_hcdi_pipe_reset_data_toggle(
1105 				usba_pipe_handle_data_t	*ph);
1106 int		ehci_hcdi_pipe_ctrl_xfer(
1107 				usba_pipe_handle_data_t	*ph,
1108 				usb_ctrl_req_t		*ctrl_reqp,
1109 				usb_flags_t		usb_flags);
1110 int		ehci_hcdi_bulk_transfer_size(
1111 				usba_device_t		*usba_device,
1112 				size_t			*size);
1113 int		ehci_hcdi_pipe_bulk_xfer(
1114 				usba_pipe_handle_data_t	*ph,
1115 				usb_bulk_req_t		*bulk_reqp,
1116 				usb_flags_t		usb_flags);
1117 int		ehci_hcdi_pipe_intr_xfer(
1118 				usba_pipe_handle_data_t	*ph,
1119 				usb_intr_req_t		*intr_req,
1120 				usb_flags_t		usb_flags);
1121 int		ehci_hcdi_pipe_stop_intr_polling(
1122 				usba_pipe_handle_data_t	*ph,
1123 				usb_flags_t		usb_flags);
1124 int		ehci_hcdi_get_current_frame_number(
1125 				usba_device_t		*usba_device,
1126 				usb_frame_number_t	*frame_number);
1127 int		ehci_hcdi_get_max_isoc_pkts(
1128 				usba_device_t		*usba_device,
1129 				uint_t		*max_isoc_pkts_per_request);
1130 int		ehci_hcdi_pipe_isoc_xfer(
1131 				usba_pipe_handle_data_t	*ph,
1132 				usb_isoc_req_t		*isoc_reqp,
1133 				usb_flags_t		usb_flags);
1134 int		ehci_hcdi_pipe_stop_isoc_polling(
1135 				usba_pipe_handle_data_t	*ph,
1136 				usb_flags_t		usb_flags);
1137 
1138 /*
1139  * EHCI Polled entry points function prototypes.
1140  */
1141 int		ehci_hcdi_polled_input_init(
1142 				usba_pipe_handle_data_t	*ph,
1143 				uchar_t			**polled_buf,
1144 				usb_console_info_impl_t	*info);
1145 int		ehci_hcdi_polled_input_enter(
1146 				usb_console_info_impl_t	*info);
1147 int		ehci_hcdi_polled_read(
1148 				usb_console_info_impl_t	*info,
1149 				uint_t			*num_characters);
1150 int		ehci_hcdi_polled_input_exit(
1151 				usb_console_info_impl_t	*info);
1152 int		ehci_hcdi_polled_input_fini(
1153 				usb_console_info_impl_t	*info);
1154 int		ehci_hcdi_polled_output_init(
1155 				usba_pipe_handle_data_t	*ph,
1156 				usb_console_info_impl_t	*console_output_info);
1157 int		ehci_hcdi_polled_output_enter(
1158 				usb_console_info_impl_t	*info);
1159 int		ehci_hcdi_polled_write(
1160 				usb_console_info_impl_t *info,
1161 				uchar_t *buf,
1162 				uint_t num_characters,
1163 				uint_t *num_characters_written);
1164 int		ehci_hcdi_polled_output_exit(
1165 				usb_console_info_impl_t	*info);
1166 int		ehci_hcdi_polled_output_fini(
1167 				usb_console_info_impl_t *info);
1168 /*
1169  * EHCI Root Hub entry points function prototypes.
1170  */
1171 int		ehci_init_root_hub(
1172 				ehci_state_t		*ehcip);
1173 int		ehci_load_root_hub_driver(
1174 				ehci_state_t		*ehcip);
1175 int		ehci_unload_root_hub_driver(
1176 				ehci_state_t		*ehcip);
1177 int		ehci_handle_root_hub_pipe_open(
1178 				usba_pipe_handle_data_t	*ph,
1179 				usb_flags_t		flags);
1180 int		ehci_handle_root_hub_pipe_close(
1181 				usba_pipe_handle_data_t	*ph);
1182 int		ehci_handle_root_hub_pipe_reset(
1183 				usba_pipe_handle_data_t	*ph,
1184 				usb_flags_t		flags);
1185 int		ehci_handle_root_hub_request(
1186 				ehci_state_t		*ehcip,
1187 				usba_pipe_handle_data_t	*ph,
1188 				usb_ctrl_req_t		*ctrl_reqp);
1189 int		ehci_handle_root_hub_pipe_start_intr_polling(
1190 				usba_pipe_handle_data_t	*ph,
1191 				usb_intr_req_t		*intr_reqp,
1192 				usb_flags_t		flags);
1193 void		ehci_handle_root_hub_pipe_stop_intr_polling(
1194 				usba_pipe_handle_data_t	*ph,
1195 				usb_flags_t		flags);
1196 
1197 /*
1198  * EHCI Interrupt Handler entry point.
1199  */
1200 uint_t		ehci_intr(caddr_t			arg1,
1201 				caddr_t			arg2);
1202 
1203 #ifdef __cplusplus
1204 }
1205 #endif
1206 
1207 #endif /* _SYS_USB_EHCID_H */
1208