xref: /freebsd/sys/dev/firewire/firewire.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /*-
2  * Copyright (c) 2003 Hidetoshi Shimokawa
3  * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the acknowledgement as bellow:
16  *
17  *    This product includes software developed by K. Kobayashi and H. Shimokawa
18  *
19  * 4. The name of the author may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32  * POSSIBILITY OF SUCH DAMAGE.
33  *
34  * $FreeBSD$
35  *
36  */
37 
38 #ifndef _FIREWIRE_H
39 #define _FIREWIRE_H 1
40 
41 #define	DEV_DEF  0
42 #define	DEV_DV   2
43 
44 struct fw_isochreq {
45 	unsigned char	ch:6,
46 			tag:2;
47 };
48 
49 struct fw_isobufreq {
50 	struct fw_bufspec {
51 		unsigned int nchunk;
52 		unsigned int npacket;
53 		unsigned int psize;
54 	} tx, rx;
55 };
56 
57 struct fw_addr {
58 	uint32_t hi;
59 	uint32_t lo;
60 };
61 
62 struct fw_asybindreq {
63 	struct fw_addr start;
64 	unsigned long len;
65 };
66 
67 struct fw_reg_req_t {
68 	uint32_t addr;
69 	uint32_t data;
70 };
71 
72 #define MAXREC(x)	(2 << (x))
73 #define FWPMAX_S400 (2048 + 20)	/* MAXREC plus space for control data */
74 #define FWMAXQUEUE 128
75 
76 #define	FWLOCALBUS	0xffc0
77 
78 #define FWTCODE_WREQQ	0
79 #define FWTCODE_WREQB	1
80 #define FWTCODE_WRES	2
81 #define FWTCODE_RREQQ	4
82 #define FWTCODE_RREQB	5
83 #define FWTCODE_RRESQ	6
84 #define FWTCODE_RRESB	7
85 #define FWTCODE_CYCS	8
86 #define FWTCODE_LREQ	9
87 #define FWTCODE_STREAM	0xa
88 #define FWTCODE_LRES	0xb
89 #define FWTCODE_PHY	0xe
90 
91 #define	FWRETRY_1	0
92 #define	FWRETRY_X	1
93 #define	FWRETRY_A	2
94 #define	FWRETRY_B	3
95 
96 #define FWRCODE_COMPLETE	0
97 #define FWRCODE_ER_CONFL	4
98 #define FWRCODE_ER_DATA		5
99 #define FWRCODE_ER_TYPE		6
100 #define FWRCODE_ER_ADDR		7
101 
102 #define FWSPD_S100	0
103 #define FWSPD_S200	1
104 #define FWSPD_S400	2
105 
106 #define	FWP_TL_VALID (1 << 7)
107 
108 struct fw_isohdr {
109 	uint32_t hdr[1];
110 };
111 
112 struct fw_asyhdr {
113 	uint32_t hdr[4];
114 };
115 
116 #if BYTE_ORDER == BIG_ENDIAN
117 #define BIT4x2(x,y)	 uint8_t  x:4, y:4
118 #define BIT16x2(x,y)	uint32_t x:16, y:16
119 #else
120 #define BIT4x2(x,y)	 uint8_t  y:4, x:4
121 #define BIT16x2(x,y)	uint32_t y:16, x:16
122 #endif
123 
124 
125 #if BYTE_ORDER == BIG_ENDIAN
126 #define COMMON_HDR(a,b,c,d)	uint32_t a:16,b:8,c:4,d:4
127 #define COMMON_RES(a,b,c,d)	uint32_t a:16,b:4,c:4,d:8
128 #else
129 #define COMMON_HDR(a,b,c,d)	uint32_t d:4,c:4,b:8,a:16
130 #define COMMON_RES(a,b,c,d)	uint32_t d:8,c:4,b:4,a:16
131 #endif
132 
133 struct fw_pkt {
134 	union {
135 		uint32_t ld[0];
136 		struct {
137 			COMMON_HDR(, , tcode, );
138 		} common;
139 		struct {
140 			COMMON_HDR(len, chtag, tcode, sy);
141 			uint32_t payload[0];
142 		} stream;
143 		struct {
144 			COMMON_HDR(dst, tlrt, tcode, pri);
145 			BIT16x2(src, );
146 		} hdr;
147 		struct {
148 			COMMON_HDR(dst, tlrt, tcode, pri);
149 			BIT16x2(src, dest_hi);
150 			uint32_t dest_lo;
151 		} rreqq;
152 		struct {
153 			COMMON_HDR(dst, tlrt, tcode, pri);
154 			COMMON_RES(src, rtcode, , );
155 			uint32_t :32;
156 		} wres;
157 		struct {
158 			COMMON_HDR(dst, tlrt, tcode, pri);
159 			BIT16x2(src, dest_hi);
160 			uint32_t dest_lo;
161 			BIT16x2(len, extcode);
162 		} rreqb;
163 		struct {
164 			COMMON_HDR(dst, tlrt, tcode, pri);
165 			BIT16x2(src, dest_hi);
166 			uint32_t dest_lo;
167 			uint32_t data;
168 		} wreqq;
169 		struct {
170 			COMMON_HDR(dst, tlrt, tcode, pri);
171 			BIT16x2(src, dest_hi);
172 			uint32_t dest_lo;
173 			uint32_t data;
174 		} cyc;
175 		struct {
176 			COMMON_HDR(dst, tlrt, tcode, pri);
177 			COMMON_RES(src, rtcode, , );
178 			uint32_t :32;
179 			uint32_t data;
180 		} rresq;
181 		struct {
182 			COMMON_HDR(dst, tlrt, tcode, pri);
183 			BIT16x2(src, dest_hi);
184 			uint32_t dest_lo;
185 			BIT16x2(len, extcode);
186 			uint32_t payload[0];
187 		} wreqb;
188 		struct {
189 			COMMON_HDR(dst, tlrt, tcode, pri);
190 			BIT16x2(src, dest_hi);
191 			uint32_t dest_lo;
192 			BIT16x2(len, extcode);
193 			uint32_t payload[0];
194 		} lreq;
195 		struct {
196 			COMMON_HDR(dst, tlrt, tcode, pri);
197 			COMMON_RES(src, rtcode, , );
198 			uint32_t :32;
199 			BIT16x2(len, extcode);
200 			uint32_t payload[0];
201 		} rresb;
202 		struct {
203 			COMMON_HDR(dst, tlrt, tcode, pri);
204 			COMMON_RES(src, rtcode, , );
205 			uint32_t :32;
206 			BIT16x2(len, extcode);
207 			uint32_t payload[0];
208 		} lres;
209 	} mode;
210 };
211 
212 /*
213  * Response code (rtcode)
214  */
215 /* The node has successfully completed the command. */
216 #define	RESP_CMP		0
217 /* A resource conflict was detected. The request may be retried. */
218 #define	RESP_CONFLICT_ERROR	4
219 /* Hardware error, data is unavailable. */
220 #define	RESP_DATA_ERROR		5
221 /* A field in the request packet header was set to an unsupported or incorrect
222  * value, or an invalid transaction was attempted (e.g., a write to a read-only
223  * address). */
224 #define	RESP_TYPE_ERROR		6
225 /* The destination offset field in the request was set to an address not
226  * accessible in the destination node. */
227 #define	RESP_ADDRESS_ERROR	7
228 
229 /*
230  * Extended transaction code (extcode)
231  */
232 #define EXTCODE_MASK_SWAP	1
233 #define EXTCODE_CMP_SWAP	2
234 #define EXTCODE_FETCH_ADD	3
235 #define EXTCODE_LITTLE_ADD	4
236 #define EXTCODE_BOUNDED_ADD	5
237 #define EXTCODE_WRAP_ADD	6
238 
239 struct fw_eui64 {
240 	uint32_t hi, lo;
241 };
242 #define FW_EUI64_BYTE(eui, x) \
243 	((((x)<4)?				\
244 		((eui)->hi >> (8*(3-(x)))): 	\
245 		((eui)->lo >> (8*(7-(x))))	\
246 	) & 0xff)
247 #define FW_EUI64_EQUAL(x, y) \
248 	((x).hi == (y).hi && (x).lo == (y).lo)
249 
250 struct fw_asyreq {
251 	struct fw_asyreq_t{
252 		unsigned char sped;
253 		unsigned int type;
254 #define FWASREQNODE	0
255 #define FWASREQEUI	1
256 #define FWASRESTL	2
257 #define FWASREQSTREAM	3
258 		unsigned short len;
259 		union {
260 			struct fw_eui64 eui;
261 		}dst;
262 	}req;
263 	struct fw_pkt pkt;
264 	uint32_t data[512];
265 };
266 
267 struct fw_devinfo {
268 	struct fw_eui64 eui;
269 	uint16_t dst;
270 	uint16_t status;
271 };
272 
273 #define FW_MAX_DEVLST 70
274 struct fw_devlstreq {
275 	uint16_t n;
276 	uint16_t info_len;
277 	struct fw_devinfo dev[FW_MAX_DEVLST];
278 };
279 
280 #define FW_SELF_ID_PORT_CONNECTED_TO_CHILD 3
281 #define FW_SELF_ID_PORT_CONNECTED_TO_PARENT 2
282 #define FW_SELF_ID_PORT_NOT_CONNECTED 1
283 #define FW_SELF_ID_PORT_NOT_EXISTS 0
284 #if BYTE_ORDER == BIG_ENDIAN
285 union fw_self_id {
286 	struct {
287 		uint32_t  id:2,
288 			  phy_id:6,
289 			  sequel:1,
290 			  link_active:1,
291 			  gap_count:6,
292 			  phy_speed:2,
293 			  phy_delay:2,
294 			  contender:1,
295 			  power_class:3,
296 			  port0:2,
297 			  port1:2,
298 			  port2:2,
299 			  initiated_reset:1,
300 			  more_packets:1;
301 	} p0;
302 	struct {
303 		uint32_t
304 			  id:2,
305 			  phy_id:6,
306 			  sequel:1,
307 			  sequence_num:3,
308 			  :2,
309 			  porta:2,
310 			  portb:2,
311 			  portc:2,
312 			  portd:2,
313 			  porte:2,
314 			  portf:2,
315 			  portg:2,
316 			  porth:2,
317 			  :1,
318 			  more_packets:1;
319 	} p1;
320 };
321 #else
322 union fw_self_id {
323 	struct {
324 		uint32_t  more_packets:1,
325 			  initiated_reset:1,
326 			  port2:2,
327 			  port1:2,
328 			  port0:2,
329 			  power_class:3,
330 			  contender:1,
331 			  phy_delay:2,
332 			  phy_speed:2,
333 			  gap_count:6,
334 			  link_active:1,
335 			  sequel:1,
336 			  phy_id:6,
337 			  id:2;
338 	} p0;
339 	struct {
340 		uint32_t  more_packets:1,
341 			  reserved1:1,
342 			  porth:2,
343 			  portg:2,
344 			  portf:2,
345 			  porte:2,
346 			  portd:2,
347 			  portc:2,
348 			  portb:2,
349 			  porta:2,
350 			  reserved2:2,
351 			  sequence_num:3,
352 			  sequel:1,
353 			  phy_id:6,
354 			  id:2;
355 	} p1;
356 };
357 #endif
358 
359 
360 struct fw_topology_map {
361 	uint32_t crc:16,
362 		 crc_len:16;
363 	uint32_t generation;
364 	uint32_t self_id_count:16,
365 		 node_count:16;
366 	union fw_self_id self_id[4*64];
367 };
368 
369 struct fw_speed_map {
370 	uint32_t crc:16,
371 		 crc_len:16;
372 	uint32_t generation;
373 	uint8_t  speed[64][64];
374 };
375 
376 struct fw_crom_buf {
377 	struct fw_eui64 eui;
378 	uint32_t len;
379 	void *ptr;
380 };
381 
382 /*
383  * FireWire specific system requests.
384  */
385 #define	FW_SSTBUF	_IOWR('S', 86, struct fw_isobufreq)
386 #define	FW_GSTBUF	_IOWR('S', 87, struct fw_isobufreq)
387 #define	FW_SRSTREAM	_IOWR('S', 88, struct fw_isochreq)
388 #define	FW_GRSTREAM	_IOWR('S', 89, struct fw_isochreq)
389 #define	FW_STSTREAM	_IOWR('S', 90, struct fw_isochreq)
390 #define	FW_GTSTREAM	_IOWR('S', 91, struct fw_isochreq)
391 
392 #define	FW_ASYREQ	_IOWR('S', 92, struct fw_asyreq)
393 #define FW_IBUSRST	_IOR('S', 1, unsigned int)
394 #define FW_GDEVLST	_IOWR('S', 2, struct fw_devlstreq)
395 #define	FW_SBINDADDR	_IOWR('S', 3, struct fw_asybindreq)
396 #define	FW_CBINDADDR	_IOWR('S', 4, struct fw_asybindreq)
397 #define	FW_GTPMAP	_IOR('S', 5, struct fw_topology_map)
398 #define	FW_GCROM	_IOWR('S', 7, struct fw_crom_buf)
399 
400 #define	FW_SDEUI64	_IOW('S', 20, struct fw_eui64)
401 #define	FW_GDEUI64	_IOR('S', 21, struct fw_eui64)
402 
403 #define FWOHCI_RDREG	_IOWR('S', 80, struct fw_reg_req_t)
404 #define FWOHCI_WRREG	_IOWR('S', 81, struct fw_reg_req_t)
405 #define FWOHCI_RDPHYREG	_IOWR('S', 82, struct fw_reg_req_t)
406 #define FWOHCI_WRPHYREG	_IOWR('S', 83, struct fw_reg_req_t)
407 
408 #define DUMPDMA		_IOWR('S', 82, uint32_t)
409 
410 #ifdef _KERNEL
411 
412 #define FWMAXNDMA 0x100 /* 8 bits DMA channel id. in device No. */
413 
414 #if defined(__DragonFly__) || __FreeBSD_version < 500000
415 #define dev2unit(x)	((minor(x) & 0xff) | (minor(x) >> 8))
416 #define unit2minor(x)	(((x) & 0xff) | (((x) << 8) & ~0xffff))
417 #endif
418 
419 #define MAKEMINOR(f, u, s)	\
420 	unit2minor((f) | (((u) & 0xff) << 8) | (s & 0xff))
421 #define DEV2UNIT(x)	((dev2unit(x) & 0xff00) >> 8)
422 #define DEV2SUB(x)	(dev2unit(x) & 0xff)
423 
424 #define FWMEM_FLAG	0x10000
425 #define DEV_FWMEM(x)	(dev2unit(x) & FWMEM_FLAG)
426 #endif
427 #endif
428