xref: /illumos-gate/usr/src/uts/common/sys/1394/targets/av1394/av1394_isoch.h (revision 2570281cf351044b6936651ce26dbe1f801dcbd8)
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_1394_TARGETS_AV1394_ISOCH_H
27 #define	_SYS_1394_TARGETS_AV1394_ISOCH_H
28 
29 /*
30  * isoch module definitions
31  */
32 
33 #include <sys/note.h>
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 #define	COOKIES		100
40 
41 /*
42  * isoch DMA memory management: segments and pools
43  *
44  * isoch segment - a contiguous chunk of kernel memory
45  */
46 typedef struct av1394_isoch_seg_s {
47 	caddr_t			is_kaddr;	/* segment kernel virt addr */
48 	int			is_size;	/* segment size */
49 	ddi_umem_cookie_t	is_umem_cookie;	/* umem cookie */
50 	size_t			is_umem_size;	/* umem size (page-aligned) */
51 	ddi_dma_handle_t	is_dma_hdl;	/* bind handle */
52 	ddi_dma_cookie_t	is_dma_cookie[COOKIES];
53 						/* dma cookie */
54 	uint_t			is_dma_ncookies;
55 						/* # of cookies */
56 } av1394_isoch_seg_t;
57 
58 /*
59  * isoch pool - a set of one or more isoch segments
60  */
61 typedef struct av1394_isoch_pool_s {
62 	av1394_isoch_seg_t	*ip_seg;	/* array of segments */
63 	int			ip_nsegs;	/* # of valid segments */
64 	int			ip_alloc_size;	/* array alloc'd size */
65 	int			ip_size;	/* total pool size */
66 	int			ip_umem_size;	/* total alloc'd memory size */
67 } av1394_isoch_pool_t;
68 
69 /*
70  * many members are protected because they are modified during channel
71  * initialization or/and during isoch transfer, both of which are
72  * single-threaded processes. after that these members remain read-only.
73  */
74 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_isoch_seg_s))
75 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_isoch_pool_s))
76 
77 /*
78  * IXL receive data block (one or more RECV_BUF commands will follow the label)
79  */
80 typedef struct av1394_ir_ixl_data_s {
81 	ixl1394_label_t		rd_label;
82 	ixl1394_callback_t	rd_cb;		/* buffer completion callback */
83 	ixl1394_jump_t		rd_jump;	/* next command */
84 } av1394_ir_ixl_data_t;
85 
86 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_ir_ixl_data_s))
87 
88 /*
89  * isoch receive structure
90  */
91 typedef struct av1394_ir_s {
92 	av1394_isoch_pool_t	ir_data_pool;	/* pool for data packets */
93 	/* IXL */
94 	ixl1394_command_t	*ir_ixlp;	/* IXL chain */
95 	av1394_ir_ixl_data_t	*ir_ixl_data;	/* data block array */
96 	ixl1394_xfer_buf_t	*ir_ixl_buf;	/* RECV_BUF command array */
97 	int			ir_ixl_nbufs;	/* # of commands in array */
98 	size_t			ir_ixl_bpf;	/* # of buffers per frame - 1 */
99 	size_t			ir_ixl_bufsz;	/* buffer size */
100 	size_t			ir_ixl_tailsz;	/* tail buffer size */
101 	/* xfer */
102 	int			ir_nfull;	/* # of full frames */
103 	int			ir_first_full;	/* first full frame */
104 	int			ir_nempty;	/* # of empty frames */
105 	int			ir_last_empty;	/* last produced frame */
106 	int			ir_hiwat;	/* high water mark */
107 	int			ir_lowat;	/* low water mark */
108 	int			ir_overflow_idx; /* overflow frame index */
109 	/* read() support */
110 	int			ir_read_idx;	/* first full frame */
111 	int			ir_read_cnt;	/* number of full frames */
112 	off_t			ir_read_off;	/* offset into the frame */
113 } av1394_ir_t;
114 
115 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_ir_s::{
116 	ir_ixlp
117 	ir_ixl_buf
118 	ir_ixl_nbufs
119 	ir_ixl_bpf
120 	ir_ixl_bufsz
121 	ir_ixl_tailsz
122 }))
123 
124 /*
125  * IXL transmit begin block, used to get a starting point for timestamping
126  */
127 enum { AV1394_IT_IXL_BEGIN_NPOST = 3 };
128 
129 typedef struct av1394_it_ixl_begin_s {
130 	ixl1394_label_t		be_label;
131 	ixl1394_xfer_pkt_t	be_empty_pre;	/* needed for next command */
132 	ixl1394_store_timestamp_t be_store_ts;	/* store timestamp */
133 	ixl1394_callback_t	be_cb;		/* timestamp handling */
134 	ixl1394_xfer_pkt_t	be_empty_post[AV1394_IT_IXL_BEGIN_NPOST];
135 	ixl1394_jump_t		be_jump;	/* next command */
136 } av1394_it_ixl_begin_t;
137 
138 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_it_ixl_begin_s))
139 
140 /*
141  * common part of transmit commands that are in a linked list
142  */
143 typedef struct av1394_it_ixl_common_s {
144 	struct av1394_it_ixl_common_s	*tc_next;	/* next in the list */
145 	int				tc_size;	/* structure size */
146 } av1394_it_ixl_common_t;
147 
148 /*
149  * IXL transmit data block
150  */
151 typedef struct av1394_it_ixl_buf_s {
152 	av1394_it_ixl_common_t	tb_common;
153 	int			tb_flags;
154 	int			tb_framenum;	/* frame number */
155 	struct av1394_ic_s	*tb_icp;
156 	ixl1394_label_t		tb_label;
157 	ixl1394_xfer_buf_t	tb_buf;		/* transmit packets */
158 	ixl1394_store_timestamp_t tb_store_ts;	/* cycle time feedback */
159 	ixl1394_callback_t	tb_cb;		/* callback */
160 	ixl1394_jump_t		tb_jump;	/* next command */
161 } av1394_it_ixl_buf_t;
162 
163 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_it_ixl_buf_s))
164 
165 /* tb_flags */
166 enum {
167 	AV1394_IT_IXL_BUF_NEXT_EMPTY	= 0x01,	/* followed by empty CIP */
168 	AV1394_IT_IXL_BUF_SOF		= 0x02,	/* start of frame */
169 	AV1394_IT_IXL_BUF_EOF		= 0x04	/* end of frame */
170 };
171 
172 /*
173  * empty CIP
174  */
175 typedef struct av1394_it_ixl_empty_cip_s {
176 	av1394_it_ixl_common_t	te_common;
177 	ixl1394_label_t		te_label;
178 	ixl1394_xfer_pkt_t	te_pkt;
179 	ixl1394_jump_t		te_jump;	/* next command */
180 } av1394_it_ixl_empty_cip_t;
181 
182 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_it_ixl_empty_cip_s))
183 
184 /*
185  * per-frame information
186  */
187 typedef struct av1394_it_frame_info_s {
188 	caddr_t			fi_ts_off;	/* where to put a timestamp */
189 	int			fi_ncycs;	/* # of bus cycles */
190 	av1394_it_ixl_buf_t	*fi_first_buf;	/* first IXL buffer */
191 	av1394_it_ixl_buf_t	*fi_last_buf;	/* last IXL buffer */
192 } av1394_it_frame_info_t;
193 
194 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_it_frame_info_s))
195 
196 /*
197  * timestamp type
198  */
199 typedef union av1394_it_ts {
200 	uint16_t	ts_syt;		/* SYT timestamp */
201 } av1394_it_ts_t;
202 
203 /*
204  * isoch transmit structure
205  */
206 typedef struct av1394_it_s {
207 	av1394_isoch_pool_t	it_data_pool;	/* pool for data packets */
208 	/* IXL */
209 	ixl1394_command_t	*it_ixlp;	/* IXL chain */
210 	av1394_it_ixl_begin_t	it_ixl_begin;	/* begin block */
211 	av1394_it_ixl_common_t	*it_ixl_data;	/* data block */
212 	av1394_it_frame_info_t	*it_frame_info;	/* frame info array */
213 	av1394_it_ixl_empty_cip_t *it_skipped_cip; /* last skipped CIP */
214 	/* xfer */
215 	int			it_first_empty; /* first empty frame # */
216 	int			it_nempty;	/* # of empty frames */
217 	int			it_last_full;	/* last full frame # */
218 	int			it_nfull;	/* # of full frames */
219 	int			it_hiwat;	/* high water mark */
220 	int			it_lowat;	/* low water mark */
221 	int			it_start_thre;	/* xfer start threshold */
222 	av1394_it_ts_t		it_ts_init;	/* initial timestamp */
223 	/* underrun data */
224 	int			it_underrun_idx; /* underrun frame index */
225 	ixl1394_command_t	*it_saved_label; /* saved buffer label */
226 	/* write() support */
227 	int			it_write_idx;	/* first empty frame */
228 	int			it_write_cnt;	/* # of empty frames */
229 	off_t			it_write_off;	/* offset into the frame */
230 } av1394_it_t;
231 
232 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_it_s::{
233 	it_ixlp
234 	it_ixl_begin
235 	it_ixl_data
236 	it_frame_info
237 	it_ts_init
238 	it_skipped_cip
239 }))
240 
241 /* misc channel parameters */
242 typedef struct av1394_ic_param_s {
243 	int		cp_bus_speed;	/* bus speed */
244 	int		cp_dbs;		/* DBS */
245 	int		cp_fn;		/* FN */
246 	int		cp_n;		/* rate numerator */
247 	int		cp_d;		/* rate denominator */
248 	int		cp_ts_mode;	/* timestamp mode */
249 } av1394_ic_param_t;
250 
251 /* channel state */
252 typedef enum {
253 	AV1394_IC_IDLE,		/* nothing happens */
254 	AV1394_IC_STARTED,	/* channel has been started */
255 	AV1394_IC_DMA,		/* DMA transfer is in progress */
256 	AV1394_IC_SUSPENDED	/* transfer on the channel suspended */
257 } av1394_ic_state_t;
258 
259 /*
260  * isoch channel structure, common for both recv and xmit
261  */
262 typedef struct av1394_ic_s {
263 	kmutex_t		ic_mutex;	/* structure mutex */
264 	struct av1394_inst_s	*ic_avp;	/* backpointer to instance */
265 	int			ic_num;		/* channel # */
266 	int			ic_dir;		/* xfer direction */
267 	av1394_ic_state_t	ic_state;	/* state */
268 	int			ic_pktsz;	/* packet size */
269 	int			ic_npkts;	/* # of packets/frame */
270 	size_t			ic_framesz;	/* frame size (pktsz * npkts) */
271 	int			ic_nframes;	/* # of frames */
272 	av1394_ic_param_t	ic_param;	/* misc parameters */
273 	size_t			ic_mmap_sz;	/* mmap size */
274 	off_t			ic_mmap_off;	/* mmap offset */
275 	t1394_isoch_single_handle_t ic_sii_hdl;	/* isoch single handle */
276 	t1394_isoch_dma_handle_t ic_isoch_hdl;	/* 1394 isoch handle */
277 	kcondvar_t		ic_xfer_cv;	/* xfer cv */
278 	int			ic_preq;	/* postponed request */
279 	av1394_ir_t		ic_ir;		/* recv */
280 	av1394_it_t		ic_it;		/* xmit */
281 } av1394_ic_t;
282 
283 _NOTE(MUTEX_PROTECTS_DATA(av1394_ic_s::ic_mutex, av1394_ic_s))
284 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_ic_s::{
285 	ic_avp
286 	ic_num
287 	ic_dir
288 	ic_sii_hdl
289 	ic_isoch_hdl
290 	ic_pktsz
291 	ic_npkts
292 	ic_framesz
293 	ic_nframes
294 	ic_param
295 	ic_mmap_sz
296 	ic_mmap_off
297 }))
298 
299 /* xfer directions */
300 enum {
301 	AV1394_IR,
302 	AV1394_IT
303 };
304 
305 /* CIP type */
306 enum {
307 	AV1394_CIP_FULL,
308 	AV1394_CIP_EMPTY
309 };
310 
311 /* misc constants */
312 enum {
313 	AV1394_IC_FRAME_SIZE_MAX = 1024 * 1024,	/* max frame size */
314 	AV1394_MEM_MAX_PERCENT	= (100/10),	/* max percent of physmem */
315 	AV1394_SEGSZ_MAX_SHIFT	= 16,		/* maximum segment size */
316 	AV1394_SEGSZ_MAX	= (1UL << AV1394_SEGSZ_MAX_SHIFT),
317 	AV1394_SEGSZ_MAX_OFFSET	= AV1394_SEGSZ_MAX - 1,
318 	AV1394_IXL_BUFSZ_MAX	= 57344,	/* max buf size (uint16_t) */
319 						/* 57344 is ptob(btop(65535)) */
320 	AV1394_IR_NFRAMES_MIN	= 3,		/* minimum frame count */
321 	AV1394_IT_NFRAMES_MIN	= 3,		/* minimum frame count */
322 	AV1394_CIPSZ		= 8,		/* CIP header size */
323 	AV1394_DV_NTSC_FRAMESZ	= 250,		/* DV-NTSC frame size in pkts */
324 	AV1394_DV_PAL_FRAMESZ	= 300		/* DV-PAL frame size in pkts */
325 };
326 
327 #define	AV1394_TS_MODE_GET_OFF(mode)	((mode) & 0xff)
328 #define	AV1394_TS_MODE_GET_SIZE(mode)	(((mode) >> 8) & 0xff)
329 
330 /* private ISOCH_INIT flag */
331 #define	IEC61883_PRIV_ISOCH_NOALLOC	0x40000000
332 
333 /*
334  * autoxmit (isoch xmit via write(2)) support
335  */
336 typedef struct av1394_isoch_autoxmit_s {
337 	uchar_t			ax_ciph[AV1394_CIPSZ];	/* first CIP hdr */
338 	boolean_t		ax_copy_ciph;		/* need to copy hdr */
339 	int			ax_fmt;			/* data format */
340 } av1394_isoch_autoxmit_t;
341 
342 /* autoxmit formats */
343 enum {
344 	AV1394_ISOCH_AUTOXMIT_DV	= 0x10,
345 	AV1394_ISOCH_AUTOXMIT_UNKNOWN	= 0,
346 	AV1394_ISOCH_AUTOXMIT_DV_NTSC	= 1 | AV1394_ISOCH_AUTOXMIT_DV,
347 	AV1394_ISOCH_AUTOXMIT_DV_PAL	= 2 | AV1394_ISOCH_AUTOXMIT_DV
348 };
349 
350 
351 /*
352  * User processes calling mmap(2) pass the 'offset' and 'len' arguments,
353  * returned by IEC61883_ISOCH_INIT ioctl. These arguments uniquely identify
354  * the DMA buffer associated with a channel. For each isochronous channel
355  * a part of this "address space" should be allocated to prevent conflicts
356  * with other channels.
357  */
358 typedef struct av1394_as_s {
359 	off_t		as_end;		/* address space end */
360 } av1394_as_t;
361 
362 
363 /*
364  * CMP (Connection Management Procedures)
365  *
366  * PCR address map (Ref: IEC 61883-1 Fig 14)
367  */
368 #define	AV1394_PCR_ADDR_START		0xFFFFF0000900
369 #define	AV1394_PCR_ADDR_OMPR		0xFFFFF0000900
370 #define	AV1394_PCR_ADDR_OPCR0		0xFFFFF0000904
371 #define	AV1394_PCR_ADDR_NOPCR		31
372 #define	AV1394_PCR_ADDR_IMPR		0xFFFFF0000980
373 #define	AV1394_PCR_ADDR_IPCR0		0xFFFFF0000984
374 #define	AV1394_PCR_ADDR_NIPCR		31
375 
376 /* initial values and bus reset masks (Ref: IEC 61883-1 Fig 10-13) */
377 #define	AV1394_OMPR_INIT_VAL		0xBFFFFF00
378 #define	AV1394_IMPR_INIT_VAL		0x80FFFF00
379 #define	AV1394_PCR_INIT_VAL		0x00000000	/* both iPCR and oPCR */
380 #define	AV1394_OPCR_BR_CLEAR_MASK	0x7FC03C00
381 #define	AV1394_IPCR_BR_CLEAR_MASK	0x7FC0FFFF
382 
383 /*
384  * local plug control register
385  */
386 typedef struct av1394_pcr_s {
387 	uint32_t		pcr_val;	/* value */
388 	t1394_addr_handle_t	pcr_addr_hdl;	/* address handle */
389 } av1394_pcr_t;
390 
391 enum {
392 	AV1394_OMPR_IDX		= 0,	/* oMPR index */
393 	AV1394_OPCR0_IDX	= 1,	/* oPCR0 index */
394 	AV1394_IMPR_IDX		= 32,	/* iMPR index */
395 	AV1394_IPCR0_IDX	= 33,	/* iPCR0 index */
396 	AV1394_NPCR		= 64	/* total number of PCRs */
397 };
398 
399 /* plug handle manipulation */
400 enum {
401 	AV1394_PCR_REMOTE	= 0x40000000
402 };
403 
404 /*
405  * per-instance CMP structure
406  */
407 typedef struct av1394_cmp_s {
408 	krwlock_t	cmp_pcr_rwlock;		/* rwlock for PCRs */
409 	av1394_pcr_t	*cmp_pcr[AV1394_NPCR];	/* array of PCRs */
410 } av1394_cmp_t;
411 
412 _NOTE(SCHEME_PROTECTS_DATA("cmp_pcr_rwlock", av1394_cmp_s::cmp_pcr))
413 
414 
415 /*
416  * per-instance soft state structure
417  */
418 typedef struct av1394_isoch_s {
419 	kmutex_t		i_mutex;	/* structure mutex */
420 	int			i_nopen;	/* number of opens */
421 	av1394_cmp_t		i_cmp;		/* CMP information */
422 	av1394_ic_t		*i_ic[64];	/* array of channels */
423 	av1394_as_t		i_mmap_as;	/* mmap virtual addr space */
424 	ddi_softintr_t		i_softintr_id;	/* soft interrupt id */
425 	uint64_t		i_softintr_ch;	/* channels to service */
426 	av1394_isoch_autoxmit_t	i_autoxmit;	/* autoxmit support */
427 } av1394_isoch_t;
428 
429 _NOTE(MUTEX_PROTECTS_DATA(av1394_isoch_s::i_mutex, av1394_isoch_s))
430 _NOTE(DATA_READABLE_WITHOUT_LOCK(av1394_isoch_s::{
431 	i_ic
432 	i_softintr_id
433 }))
434 _NOTE(SCHEME_PROTECTS_DATA("single-threaded", av1394_isoch_autoxmit_s))
435 
436 _NOTE(LOCK_ORDER(av1394_isoch_s::i_mutex av1394_ic_s::ic_mutex))
437 
438 /* postponed request types */
439 enum {
440 	AV1394_PREQ_IR_OVERFLOW		= 0x01,
441 	AV1394_PREQ_IT_UNDERRUN		= 0x02
442 };
443 
444 /* isoch channel */
445 int	av1394_ic_open(struct av1394_inst_s *, int);
446 int	av1394_ic_close(struct av1394_inst_s *, int);
447 int	av1394_ic_init(struct av1394_inst_s *avp, iec61883_isoch_init_t *ii,
448 	av1394_ic_t **icpp);
449 void	av1394_ic_fini(av1394_ic_t *icp);
450 int	av1394_ic_alloc_pool(av1394_isoch_pool_t *pool, size_t segsz, int cnt,
451 	int mincnt);
452 void	av1394_ic_free_pool(av1394_isoch_pool_t *pool);
453 int	av1394_ic_dma_setup(av1394_ic_t *icp, av1394_isoch_pool_t *pool);
454 void	av1394_ic_dma_cleanup(av1394_ic_t *icp, av1394_isoch_pool_t *pool);
455 int	av1394_ic_ixl_seg_decomp(size_t segsz, size_t pktsz, size_t *bufszp,
456 	size_t *tailszp);
457 void	av1394_ic_dma_sync_frames(av1394_ic_t *icp, int idx, int cnt,
458 		av1394_isoch_pool_t *pool, uint_t type);
459 int	av1394_ic_start(av1394_ic_t *icp);
460 int	av1394_ic_stop(av1394_ic_t *icp);
461 void	av1394_ic_ixl_dump(ixl1394_command_t *cmd);
462 void	av1394_ic_trigger_softintr(av1394_ic_t *icp, int num, int preq);
463 
464 /* isoch receive */
465 int	av1394_ir_init(av1394_ic_t *icp, int *error);
466 void	av1394_ir_fini(av1394_ic_t *icp);
467 int	av1394_ir_start(av1394_ic_t *icp);
468 int	av1394_ir_stop(av1394_ic_t *icp);
469 int	av1394_ir_recv(av1394_ic_t *icp, iec61883_recv_t *recv);
470 int	av1394_ir_read(av1394_ic_t *icp, struct uio *uiop);
471 void	av1394_ir_overflow(av1394_ic_t *icp);
472 
473 /* isoch transmit */
474 int	av1394_it_init(av1394_ic_t *icp, int *error);
475 void	av1394_it_fini(av1394_ic_t *icp);
476 int	av1394_it_start(av1394_ic_t *icp);
477 int	av1394_it_stop(av1394_ic_t *icp);
478 int	av1394_it_xmit(av1394_ic_t *icp, iec61883_xmit_t *xmit);
479 int	av1394_it_write(av1394_ic_t *icp, struct uio *uiop);
480 void	av1394_it_underrun(av1394_ic_t *icp);
481 
482 /* address space for mmap(2) */
483 void av1394_as_init(av1394_as_t *as);
484 void av1394_as_fini(av1394_as_t *as);
485 off_t	av1394_as_alloc(av1394_as_t *as, size_t size);
486 void av1394_as_free(av1394_as_t *as, off_t);
487 
488 /* CMP */
489 int	av1394_cmp_init(struct av1394_inst_s *avp);
490 void	av1394_cmp_fini(struct av1394_inst_s *avp);
491 void	av1394_cmp_bus_reset(struct av1394_inst_s *avp);
492 void	av1394_cmp_close(struct av1394_inst_s *avp);
493 int	av1394_ioctl_plug_init(struct av1394_inst_s *, void *, int);
494 int	av1394_ioctl_plug_fini(struct av1394_inst_s *, void *, int);
495 int	av1394_ioctl_plug_reg_read(struct av1394_inst_s *, void *, int);
496 int	av1394_ioctl_plug_reg_cas(struct av1394_inst_s *, void *, int);
497 
498 /* isoch common */
499 int	av1394_isoch_attach(struct av1394_inst_s *);
500 void	av1394_isoch_detach(struct av1394_inst_s *);
501 int	av1394_isoch_cpr_suspend(struct av1394_inst_s *);
502 int	av1394_isoch_cpr_resume(struct av1394_inst_s *);
503 void	av1394_isoch_bus_reset(struct av1394_inst_s *);
504 void	av1394_isoch_disconnect(struct av1394_inst_s *);
505 void	av1394_isoch_reconnect(struct av1394_inst_s *);
506 int	av1394_isoch_open(struct av1394_inst_s *, int);
507 int	av1394_isoch_close(struct av1394_inst_s *, int);
508 int	av1394_isoch_read(struct av1394_inst_s *, struct uio *);
509 int	av1394_isoch_write(struct av1394_inst_s *, struct uio *);
510 int	av1394_isoch_ioctl(struct av1394_inst_s *, int, intptr_t, int, int *);
511 int	av1394_isoch_devmap(struct av1394_inst_s *, devmap_cookie_t, offset_t,
512 		size_t, size_t *, uint_t);
513 
514 #ifdef __cplusplus
515 }
516 #endif
517 
518 #endif /* _SYS_1394_TARGETS_AV1394_ISOCH_H */
519