Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * $Header: /cvsroot/osst/Driver/osst.h,v 1.16 2005/01/01 21:13:35 wriede Exp $ | |
3 | */ | |
4 | ||
5 | #include <asm/byteorder.h> | |
1da177e4 LT |
6 | #include <linux/completion.h> |
7 | ||
8 | /* FIXME - rename and use the following two types or delete them! | |
9 | * and the types really should go to st.h anyway... | |
10 | * INQUIRY packet command - Data Format (From Table 6-8 of QIC-157C) | |
11 | */ | |
12 | typedef struct { | |
13 | unsigned device_type :5; /* Peripheral Device Type */ | |
14 | unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */ | |
15 | unsigned reserved1_6t0 :7; /* Reserved */ | |
16 | unsigned rmb :1; /* Removable Medium Bit */ | |
17 | unsigned ansi_version :3; /* ANSI Version */ | |
18 | unsigned ecma_version :3; /* ECMA Version */ | |
19 | unsigned iso_version :2; /* ISO Version */ | |
20 | unsigned response_format :4; /* Response Data Format */ | |
21 | unsigned reserved3_45 :2; /* Reserved */ | |
22 | unsigned reserved3_6 :1; /* TrmIOP - Reserved */ | |
23 | unsigned reserved3_7 :1; /* AENC - Reserved */ | |
24 | u8 additional_length; /* Additional Length (total_length-4) */ | |
25 | u8 rsv5, rsv6, rsv7; /* Reserved */ | |
26 | u8 vendor_id[8]; /* Vendor Identification */ | |
27 | u8 product_id[16]; /* Product Identification */ | |
28 | u8 revision_level[4]; /* Revision Level */ | |
29 | u8 vendor_specific[20]; /* Vendor Specific - Optional */ | |
30 | u8 reserved56t95[40]; /* Reserved - Optional */ | |
31 | /* Additional information may be returned */ | |
32 | } idetape_inquiry_result_t; | |
33 | ||
34 | /* | |
35 | * READ POSITION packet command - Data Format (From Table 6-57) | |
36 | */ | |
37 | typedef struct { | |
38 | unsigned reserved0_10 :2; /* Reserved */ | |
39 | unsigned bpu :1; /* Block Position Unknown */ | |
40 | unsigned reserved0_543 :3; /* Reserved */ | |
41 | unsigned eop :1; /* End Of Partition */ | |
42 | unsigned bop :1; /* Beginning Of Partition */ | |
43 | u8 partition; /* Partition Number */ | |
44 | u8 reserved2, reserved3; /* Reserved */ | |
45 | u32 first_block; /* First Block Location */ | |
46 | u32 last_block; /* Last Block Location (Optional) */ | |
47 | u8 reserved12; /* Reserved */ | |
48 | u8 blocks_in_buffer[3]; /* Blocks In Buffer - (Optional) */ | |
49 | u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */ | |
50 | } idetape_read_position_result_t; | |
51 | ||
52 | /* | |
53 | * Follows structures which are related to the SELECT SENSE / MODE SENSE | |
54 | * packet commands. | |
55 | */ | |
56 | #define COMPRESSION_PAGE 0x0f | |
57 | #define COMPRESSION_PAGE_LENGTH 16 | |
58 | ||
59 | #define CAPABILITIES_PAGE 0x2a | |
60 | #define CAPABILITIES_PAGE_LENGTH 20 | |
61 | ||
62 | #define TAPE_PARAMTR_PAGE 0x2b | |
63 | #define TAPE_PARAMTR_PAGE_LENGTH 16 | |
64 | ||
65 | #define NUMBER_RETRIES_PAGE 0x2f | |
66 | #define NUMBER_RETRIES_PAGE_LENGTH 4 | |
67 | ||
68 | #define BLOCK_SIZE_PAGE 0x30 | |
69 | #define BLOCK_SIZE_PAGE_LENGTH 4 | |
70 | ||
71 | #define BUFFER_FILLING_PAGE 0x33 | |
72 | #define BUFFER_FILLING_PAGE_LENGTH 4 | |
73 | ||
74 | #define VENDOR_IDENT_PAGE 0x36 | |
75 | #define VENDOR_IDENT_PAGE_LENGTH 8 | |
76 | ||
77 | #define LOCATE_STATUS_PAGE 0x37 | |
78 | #define LOCATE_STATUS_PAGE_LENGTH 0 | |
79 | ||
80 | #define MODE_HEADER_LENGTH 4 | |
81 | ||
82 | ||
83 | /* | |
84 | * REQUEST SENSE packet command result - Data Format. | |
85 | */ | |
86 | typedef struct { | |
87 | unsigned error_code :7; /* Current of deferred errors */ | |
88 | unsigned valid :1; /* The information field conforms to QIC-157C */ | |
89 | u8 reserved1 :8; /* Segment Number - Reserved */ | |
90 | unsigned sense_key :4; /* Sense Key */ | |
91 | unsigned reserved2_4 :1; /* Reserved */ | |
92 | unsigned ili :1; /* Incorrect Length Indicator */ | |
93 | unsigned eom :1; /* End Of Medium */ | |
94 | unsigned filemark :1; /* Filemark */ | |
95 | u32 information __attribute__ ((packed)); | |
96 | u8 asl; /* Additional sense length (n-7) */ | |
97 | u32 command_specific; /* Additional command specific information */ | |
98 | u8 asc; /* Additional Sense Code */ | |
99 | u8 ascq; /* Additional Sense Code Qualifier */ | |
100 | u8 replaceable_unit_code; /* Field Replaceable Unit Code */ | |
101 | unsigned sk_specific1 :7; /* Sense Key Specific */ | |
102 | unsigned sksv :1; /* Sense Key Specific information is valid */ | |
103 | u8 sk_specific2; /* Sense Key Specific */ | |
104 | u8 sk_specific3; /* Sense Key Specific */ | |
105 | u8 pad[2]; /* Padding to 20 bytes */ | |
106 | } idetape_request_sense_result_t; | |
107 | ||
108 | /* | |
109 | * Mode Parameter Header for the MODE SENSE packet command | |
110 | */ | |
111 | typedef struct { | |
112 | u8 mode_data_length; /* Length of the following data transfer */ | |
113 | u8 medium_type; /* Medium Type */ | |
114 | u8 dsp; /* Device Specific Parameter */ | |
115 | u8 bdl; /* Block Descriptor Length */ | |
116 | } osst_mode_parameter_header_t; | |
117 | ||
118 | /* | |
119 | * Mode Parameter Block Descriptor the MODE SENSE packet command | |
120 | * | |
121 | * Support for block descriptors is optional. | |
122 | */ | |
123 | typedef struct { | |
124 | u8 density_code; /* Medium density code */ | |
125 | u8 blocks[3]; /* Number of blocks */ | |
126 | u8 reserved4; /* Reserved */ | |
127 | u8 length[3]; /* Block Length */ | |
128 | } osst_parameter_block_descriptor_t; | |
129 | ||
130 | /* | |
131 | * The Data Compression Page, as returned by the MODE SENSE packet command. | |
132 | */ | |
133 | typedef struct { | |
134 | #if defined(__BIG_ENDIAN_BITFIELD) | |
135 | unsigned ps :1; | |
136 | unsigned reserved0 :1; /* Reserved */ | |
137 | unsigned page_code :6; /* Page Code - Should be 0xf */ | |
138 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
139 | unsigned page_code :6; /* Page Code - Should be 0xf */ | |
140 | unsigned reserved0 :1; /* Reserved */ | |
141 | unsigned ps :1; | |
142 | #else | |
143 | #error "Please fix <asm/byteorder.h>" | |
144 | #endif | |
145 | u8 page_length; /* Page Length - Should be 14 */ | |
146 | #if defined(__BIG_ENDIAN_BITFIELD) | |
147 | unsigned dce :1; /* Data Compression Enable */ | |
148 | unsigned dcc :1; /* Data Compression Capable */ | |
149 | unsigned reserved2 :6; /* Reserved */ | |
150 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
151 | unsigned reserved2 :6; /* Reserved */ | |
152 | unsigned dcc :1; /* Data Compression Capable */ | |
153 | unsigned dce :1; /* Data Compression Enable */ | |
154 | #else | |
155 | #error "Please fix <asm/byteorder.h>" | |
156 | #endif | |
157 | #if defined(__BIG_ENDIAN_BITFIELD) | |
158 | unsigned dde :1; /* Data Decompression Enable */ | |
159 | unsigned red :2; /* Report Exception on Decompression */ | |
160 | unsigned reserved3 :5; /* Reserved */ | |
161 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
162 | unsigned reserved3 :5; /* Reserved */ | |
163 | unsigned red :2; /* Report Exception on Decompression */ | |
164 | unsigned dde :1; /* Data Decompression Enable */ | |
165 | #else | |
166 | #error "Please fix <asm/byteorder.h>" | |
167 | #endif | |
168 | u32 ca; /* Compression Algorithm */ | |
169 | u32 da; /* Decompression Algorithm */ | |
170 | u8 reserved[4]; /* Reserved */ | |
171 | } osst_data_compression_page_t; | |
172 | ||
173 | /* | |
174 | * The Medium Partition Page, as returned by the MODE SENSE packet command. | |
175 | */ | |
176 | typedef struct { | |
177 | #if defined(__BIG_ENDIAN_BITFIELD) | |
178 | unsigned ps :1; | |
179 | unsigned reserved1_6 :1; /* Reserved */ | |
180 | unsigned page_code :6; /* Page Code - Should be 0x11 */ | |
181 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
182 | unsigned page_code :6; /* Page Code - Should be 0x11 */ | |
183 | unsigned reserved1_6 :1; /* Reserved */ | |
184 | unsigned ps :1; | |
185 | #else | |
186 | #error "Please fix <asm/byteorder.h>" | |
187 | #endif | |
188 | u8 page_length; /* Page Length - Should be 6 */ | |
189 | u8 map; /* Maximum Additional Partitions - Should be 0 */ | |
190 | u8 apd; /* Additional Partitions Defined - Should be 0 */ | |
191 | #if defined(__BIG_ENDIAN_BITFIELD) | |
192 | unsigned fdp :1; /* Fixed Data Partitions */ | |
193 | unsigned sdp :1; /* Should be 0 */ | |
194 | unsigned idp :1; /* Should be 0 */ | |
195 | unsigned psum :2; /* Should be 0 */ | |
196 | unsigned reserved4_012 :3; /* Reserved */ | |
197 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
198 | unsigned reserved4_012 :3; /* Reserved */ | |
199 | unsigned psum :2; /* Should be 0 */ | |
200 | unsigned idp :1; /* Should be 0 */ | |
201 | unsigned sdp :1; /* Should be 0 */ | |
202 | unsigned fdp :1; /* Fixed Data Partitions */ | |
203 | #else | |
204 | #error "Please fix <asm/byteorder.h>" | |
205 | #endif | |
206 | u8 mfr; /* Medium Format Recognition */ | |
207 | u8 reserved[2]; /* Reserved */ | |
208 | } osst_medium_partition_page_t; | |
209 | ||
210 | /* | |
211 | * Capabilities and Mechanical Status Page | |
212 | */ | |
213 | typedef struct { | |
214 | #if defined(__BIG_ENDIAN_BITFIELD) | |
215 | unsigned reserved1_67 :2; | |
216 | unsigned page_code :6; /* Page code - Should be 0x2a */ | |
217 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
218 | unsigned page_code :6; /* Page code - Should be 0x2a */ | |
219 | unsigned reserved1_67 :2; | |
220 | #else | |
221 | #error "Please fix <asm/byteorder.h>" | |
222 | #endif | |
223 | u8 page_length; /* Page Length - Should be 0x12 */ | |
224 | u8 reserved2, reserved3; | |
225 | #if defined(__BIG_ENDIAN_BITFIELD) | |
226 | unsigned reserved4_67 :2; | |
227 | unsigned sprev :1; /* Supports SPACE in the reverse direction */ | |
228 | unsigned reserved4_1234 :4; | |
229 | unsigned ro :1; /* Read Only Mode */ | |
230 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
231 | unsigned ro :1; /* Read Only Mode */ | |
232 | unsigned reserved4_1234 :4; | |
233 | unsigned sprev :1; /* Supports SPACE in the reverse direction */ | |
234 | unsigned reserved4_67 :2; | |
235 | #else | |
236 | #error "Please fix <asm/byteorder.h>" | |
237 | #endif | |
238 | #if defined(__BIG_ENDIAN_BITFIELD) | |
239 | unsigned reserved5_67 :2; | |
240 | unsigned qfa :1; /* Supports the QFA two partition formats */ | |
241 | unsigned reserved5_4 :1; | |
242 | unsigned efmt :1; /* Supports ERASE command initiated formatting */ | |
243 | unsigned reserved5_012 :3; | |
244 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
245 | unsigned reserved5_012 :3; | |
246 | unsigned efmt :1; /* Supports ERASE command initiated formatting */ | |
247 | unsigned reserved5_4 :1; | |
248 | unsigned qfa :1; /* Supports the QFA two partition formats */ | |
249 | unsigned reserved5_67 :2; | |
250 | #else | |
251 | #error "Please fix <asm/byteorder.h>" | |
252 | #endif | |
253 | #if defined(__BIG_ENDIAN_BITFIELD) | |
254 | unsigned cmprs :1; /* Supports data compression */ | |
255 | unsigned ecc :1; /* Supports error correction */ | |
256 | unsigned reserved6_45 :2; /* Reserved */ | |
257 | unsigned eject :1; /* The device can eject the volume */ | |
258 | unsigned prevent :1; /* The device defaults in the prevent state after power up */ | |
259 | unsigned locked :1; /* The volume is locked */ | |
260 | unsigned lock :1; /* Supports locking the volume */ | |
261 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
262 | unsigned lock :1; /* Supports locking the volume */ | |
263 | unsigned locked :1; /* The volume is locked */ | |
264 | unsigned prevent :1; /* The device defaults in the prevent state after power up */ | |
265 | unsigned eject :1; /* The device can eject the volume */ | |
266 | unsigned reserved6_45 :2; /* Reserved */ | |
267 | unsigned ecc :1; /* Supports error correction */ | |
268 | unsigned cmprs :1; /* Supports data compression */ | |
269 | #else | |
270 | #error "Please fix <asm/byteorder.h>" | |
271 | #endif | |
272 | #if defined(__BIG_ENDIAN_BITFIELD) | |
273 | unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */ | |
274 | /* transfers for slow buffer memory ??? */ | |
275 | /* Also 32768 block size in some cases */ | |
276 | unsigned reserved7_3_6 :4; | |
277 | unsigned blk1024 :1; /* Supports 1024 bytes block size */ | |
278 | unsigned blk512 :1; /* Supports 512 bytes block size */ | |
279 | unsigned reserved7_0 :1; | |
280 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
281 | unsigned reserved7_0 :1; | |
282 | unsigned blk512 :1; /* Supports 512 bytes block size */ | |
283 | unsigned blk1024 :1; /* Supports 1024 bytes block size */ | |
284 | unsigned reserved7_3_6 :4; | |
285 | unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */ | |
286 | /* transfers for slow buffer memory ??? */ | |
287 | /* Also 32768 block size in some cases */ | |
288 | #else | |
289 | #error "Please fix <asm/byteorder.h>" | |
290 | #endif | |
95389b86 | 291 | __be16 max_speed; /* Maximum speed supported in KBps */ |
1da177e4 | 292 | u8 reserved10, reserved11; |
95389b86 AV |
293 | __be16 ctl; /* Continuous Transfer Limit in blocks */ |
294 | __be16 speed; /* Current Speed, in KBps */ | |
295 | __be16 buffer_size; /* Buffer Size, in 512 bytes */ | |
1da177e4 LT |
296 | u8 reserved18, reserved19; |
297 | } osst_capabilities_page_t; | |
298 | ||
299 | /* | |
300 | * Block Size Page | |
301 | */ | |
302 | typedef struct { | |
303 | #if defined(__BIG_ENDIAN_BITFIELD) | |
304 | unsigned ps :1; | |
305 | unsigned reserved1_6 :1; | |
306 | unsigned page_code :6; /* Page code - Should be 0x30 */ | |
307 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
308 | unsigned page_code :6; /* Page code - Should be 0x30 */ | |
309 | unsigned reserved1_6 :1; | |
310 | unsigned ps :1; | |
311 | #else | |
312 | #error "Please fix <asm/byteorder.h>" | |
313 | #endif | |
314 | u8 page_length; /* Page Length - Should be 2 */ | |
315 | u8 reserved2; | |
316 | #if defined(__BIG_ENDIAN_BITFIELD) | |
317 | unsigned one :1; | |
318 | unsigned reserved2_6 :1; | |
319 | unsigned record32_5 :1; | |
320 | unsigned record32 :1; | |
321 | unsigned reserved2_23 :2; | |
322 | unsigned play32_5 :1; | |
323 | unsigned play32 :1; | |
324 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
325 | unsigned play32 :1; | |
326 | unsigned play32_5 :1; | |
327 | unsigned reserved2_23 :2; | |
328 | unsigned record32 :1; | |
329 | unsigned record32_5 :1; | |
330 | unsigned reserved2_6 :1; | |
331 | unsigned one :1; | |
332 | #else | |
333 | #error "Please fix <asm/byteorder.h>" | |
334 | #endif | |
335 | } osst_block_size_page_t; | |
336 | ||
337 | /* | |
338 | * Tape Parameters Page | |
339 | */ | |
340 | typedef struct { | |
341 | #if defined(__BIG_ENDIAN_BITFIELD) | |
342 | unsigned ps :1; | |
343 | unsigned reserved1_6 :1; | |
344 | unsigned page_code :6; /* Page code - Should be 0x2b */ | |
345 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
346 | unsigned page_code :6; /* Page code - Should be 0x2b */ | |
347 | unsigned reserved1_6 :1; | |
348 | unsigned ps :1; | |
349 | #else | |
350 | #error "Please fix <asm/byteorder.h>" | |
351 | #endif | |
352 | u8 reserved2; | |
353 | u8 density; | |
354 | u8 reserved3,reserved4; | |
95389b86 AV |
355 | __be16 segtrk; |
356 | __be16 trks; | |
1da177e4 LT |
357 | u8 reserved5,reserved6,reserved7,reserved8,reserved9,reserved10; |
358 | } osst_tape_paramtr_page_t; | |
359 | ||
360 | /* OnStream definitions */ | |
361 | ||
362 | #define OS_CONFIG_PARTITION (0xff) | |
363 | #define OS_DATA_PARTITION (0) | |
364 | #define OS_PARTITION_VERSION (1) | |
365 | ||
366 | /* | |
367 | * partition | |
368 | */ | |
369 | typedef struct os_partition_s { | |
370 | __u8 partition_num; | |
371 | __u8 par_desc_ver; | |
95389b86 AV |
372 | __be16 wrt_pass_cntr; |
373 | __be32 first_frame_ppos; | |
374 | __be32 last_frame_ppos; | |
375 | __be32 eod_frame_ppos; | |
1da177e4 LT |
376 | } os_partition_t; |
377 | ||
378 | /* | |
379 | * DAT entry | |
380 | */ | |
381 | typedef struct os_dat_entry_s { | |
95389b86 AV |
382 | __be32 blk_sz; |
383 | __be16 blk_cnt; | |
1da177e4 LT |
384 | __u8 flags; |
385 | __u8 reserved; | |
386 | } os_dat_entry_t; | |
387 | ||
388 | /* | |
389 | * DAT | |
390 | */ | |
391 | #define OS_DAT_FLAGS_DATA (0xc) | |
392 | #define OS_DAT_FLAGS_MARK (0x1) | |
393 | ||
394 | typedef struct os_dat_s { | |
395 | __u8 dat_sz; | |
396 | __u8 reserved1; | |
397 | __u8 entry_cnt; | |
398 | __u8 reserved3; | |
399 | os_dat_entry_t dat_list[16]; | |
400 | } os_dat_t; | |
401 | ||
402 | /* | |
403 | * Frame types | |
404 | */ | |
405 | #define OS_FRAME_TYPE_FILL (0) | |
406 | #define OS_FRAME_TYPE_EOD (1 << 0) | |
407 | #define OS_FRAME_TYPE_MARKER (1 << 1) | |
408 | #define OS_FRAME_TYPE_HEADER (1 << 3) | |
409 | #define OS_FRAME_TYPE_DATA (1 << 7) | |
410 | ||
411 | /* | |
412 | * AUX | |
413 | */ | |
414 | typedef struct os_aux_s { | |
95389b86 | 415 | __be32 format_id; /* hardware compability AUX is based on */ |
1da177e4 | 416 | char application_sig[4]; /* driver used to write this media */ |
95389b86 AV |
417 | __be32 hdwr; /* reserved */ |
418 | __be32 update_frame_cntr; /* for configuration frame */ | |
1da177e4 LT |
419 | __u8 frame_type; |
420 | __u8 frame_type_reserved; | |
421 | __u8 reserved_18_19[2]; | |
422 | os_partition_t partition; | |
423 | __u8 reserved_36_43[8]; | |
95389b86 AV |
424 | __be32 frame_seq_num; |
425 | __be32 logical_blk_num_high; | |
426 | __be32 logical_blk_num; | |
1da177e4 LT |
427 | os_dat_t dat; |
428 | __u8 reserved188_191[4]; | |
95389b86 AV |
429 | __be32 filemark_cnt; |
430 | __be32 phys_fm; | |
431 | __be32 last_mark_ppos; | |
1da177e4 LT |
432 | __u8 reserved204_223[20]; |
433 | ||
434 | /* | |
435 | * __u8 app_specific[32]; | |
436 | * | |
437 | * Linux specific fields: | |
438 | */ | |
95389b86 AV |
439 | __be32 next_mark_ppos; /* when known, points to next marker */ |
440 | __be32 last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */ | |
1da177e4 LT |
441 | __u8 linux_specific[24]; |
442 | ||
443 | __u8 reserved_256_511[256]; | |
444 | } os_aux_t; | |
445 | ||
446 | #define OS_FM_TAB_MAX 1024 | |
447 | ||
448 | typedef struct os_fm_tab_s { | |
449 | __u8 fm_part_num; | |
450 | __u8 reserved_1; | |
451 | __u8 fm_tab_ent_sz; | |
452 | __u8 reserved_3; | |
95389b86 | 453 | __be16 fm_tab_ent_cnt; |
1da177e4 | 454 | __u8 reserved6_15[10]; |
95389b86 | 455 | __be32 fm_tab_ent[OS_FM_TAB_MAX]; |
1da177e4 LT |
456 | } os_fm_tab_t; |
457 | ||
458 | typedef struct os_ext_trk_ey_s { | |
459 | __u8 et_part_num; | |
460 | __u8 fmt; | |
95389b86 | 461 | __be16 fm_tab_off; |
1da177e4 | 462 | __u8 reserved4_7[4]; |
95389b86 AV |
463 | __be32 last_hlb_hi; |
464 | __be32 last_hlb; | |
465 | __be32 last_pp; | |
1da177e4 LT |
466 | __u8 reserved20_31[12]; |
467 | } os_ext_trk_ey_t; | |
468 | ||
469 | typedef struct os_ext_trk_tb_s { | |
470 | __u8 nr_stream_part; | |
471 | __u8 reserved_1; | |
472 | __u8 et_ent_sz; | |
473 | __u8 reserved3_15[13]; | |
474 | os_ext_trk_ey_t dat_ext_trk_ey; | |
475 | os_ext_trk_ey_t qfa_ext_trk_ey; | |
476 | } os_ext_trk_tb_t; | |
477 | ||
478 | typedef struct os_header_s { | |
479 | char ident_str[8]; | |
480 | __u8 major_rev; | |
481 | __u8 minor_rev; | |
95389b86 | 482 | __be16 ext_trk_tb_off; |
1da177e4 LT |
483 | __u8 reserved12_15[4]; |
484 | __u8 pt_par_num; | |
485 | __u8 pt_reserved1_3[3]; | |
486 | os_partition_t partition[16]; | |
95389b86 AV |
487 | __be32 cfg_col_width; |
488 | __be32 dat_col_width; | |
489 | __be32 qfa_col_width; | |
1da177e4 LT |
490 | __u8 cartridge[16]; |
491 | __u8 reserved304_511[208]; | |
95389b86 | 492 | __be32 old_filemark_list[16680/4]; /* in ADR 1.4 __u8 track_table[16680] */ |
1da177e4 LT |
493 | os_ext_trk_tb_t ext_track_tb; |
494 | __u8 reserved17272_17735[464]; | |
495 | os_fm_tab_t dat_fm_tab; | |
496 | os_fm_tab_t qfa_fm_tab; | |
497 | __u8 reserved25960_32767[6808]; | |
498 | } os_header_t; | |
499 | ||
500 | ||
501 | /* | |
502 | * OnStream ADRL frame | |
503 | */ | |
504 | #define OS_FRAME_SIZE (32 * 1024 + 512) | |
505 | #define OS_DATA_SIZE (32 * 1024) | |
506 | #define OS_AUX_SIZE (512) | |
507 | //#define OSST_MAX_SG 2 | |
508 | ||
509 | /* The OnStream tape buffer descriptor. */ | |
510 | struct osst_buffer { | |
511 | unsigned char in_use; | |
512 | unsigned char dma; /* DMA-able buffer */ | |
513 | int buffer_size; | |
514 | int buffer_blocks; | |
515 | int buffer_bytes; | |
516 | int read_pointer; | |
517 | int writing; | |
518 | int midlevel_result; | |
519 | int syscall_result; | |
5e6575c0 WR |
520 | struct osst_request *last_SRpnt; |
521 | struct st_cmdstatus cmdstat; | |
1da177e4 LT |
522 | unsigned char *b_data; |
523 | os_aux_t *aux; /* onstream AUX structure at end of each block */ | |
524 | unsigned short use_sg; /* zero or number of s/g segments for this adapter */ | |
525 | unsigned short sg_segs; /* number of segments in s/g list */ | |
526 | unsigned short orig_sg_segs; /* number of segments allocated at first try */ | |
527 | struct scatterlist sg[1]; /* MUST BE last item */ | |
528 | } ; | |
529 | ||
530 | /* The OnStream tape drive descriptor */ | |
531 | struct osst_tape { | |
532 | struct scsi_driver *driver; | |
533 | unsigned capacity; | |
534 | struct scsi_device *device; | |
535 | struct semaphore lock; /* for serialization */ | |
536 | struct completion wait; /* for SCSI commands */ | |
537 | struct osst_buffer * buffer; | |
538 | ||
539 | /* Drive characteristics */ | |
540 | unsigned char omit_blklims; | |
541 | unsigned char do_auto_lock; | |
542 | unsigned char can_bsr; | |
543 | unsigned char can_partitions; | |
544 | unsigned char two_fm; | |
545 | unsigned char fast_mteom; | |
546 | unsigned char restr_dma; | |
547 | unsigned char scsi2_logical; | |
548 | unsigned char default_drvbuffer; /* 0xff = don't touch, value 3 bits */ | |
549 | unsigned char pos_unknown; /* after reset position unknown */ | |
550 | int write_threshold; | |
551 | int timeout; /* timeout for normal commands */ | |
552 | int long_timeout; /* timeout for commands known to take long time*/ | |
553 | ||
554 | /* Mode characteristics */ | |
555 | struct st_modedef modes[ST_NBR_MODES]; | |
556 | int current_mode; | |
557 | ||
558 | /* Status variables */ | |
559 | int partition; | |
560 | int new_partition; | |
561 | int nbr_partitions; /* zero until partition support enabled */ | |
562 | struct st_partstat ps[ST_NBR_PARTITIONS]; | |
563 | unsigned char dirty; | |
564 | unsigned char ready; | |
565 | unsigned char write_prot; | |
566 | unsigned char drv_write_prot; | |
567 | unsigned char in_use; | |
568 | unsigned char blksize_changed; | |
569 | unsigned char density_changed; | |
570 | unsigned char compression_changed; | |
571 | unsigned char drv_buffer; | |
572 | unsigned char density; | |
573 | unsigned char door_locked; | |
574 | unsigned char rew_at_close; | |
575 | unsigned char inited; | |
576 | int block_size; | |
577 | int min_block; | |
578 | int max_block; | |
579 | int recover_count; /* from tape opening */ | |
580 | int abort_count; | |
581 | int write_count; | |
582 | int read_count; | |
583 | int recover_erreg; /* from last status call */ | |
584 | /* | |
585 | * OnStream specific data | |
586 | */ | |
587 | int os_fw_rev; /* the firmware revision * 10000 */ | |
588 | unsigned char raw; /* flag OnStream raw access (32.5KB block size) */ | |
589 | unsigned char poll; /* flag that this drive needs polling (IDE|firmware) */ | |
590 | unsigned char frame_in_buffer; /* flag that the frame as per frame_seq_number | |
591 | * has been read into STp->buffer and is valid */ | |
592 | int frame_seq_number; /* logical frame number */ | |
593 | int logical_blk_num; /* logical block number */ | |
594 | unsigned first_frame_position; /* physical frame to be transferred to/from host */ | |
595 | unsigned last_frame_position; /* physical frame to be transferd to/from tape */ | |
596 | int cur_frames; /* current number of frames in internal buffer */ | |
597 | int max_frames; /* max number of frames in internal buffer */ | |
598 | char application_sig[5]; /* application signature */ | |
599 | unsigned char fast_open; /* flag that reminds us we didn't check headers at open */ | |
600 | unsigned short wrt_pass_cntr; /* write pass counter */ | |
601 | int update_frame_cntr; /* update frame counter */ | |
602 | int onstream_write_error; /* write error recovery active */ | |
603 | int header_ok; /* header frame verified ok */ | |
604 | int linux_media; /* reading linux-specifc media */ | |
605 | int linux_media_version; | |
606 | os_header_t * header_cache; /* cache is kept for filemark positions */ | |
607 | int filemark_cnt; | |
608 | int first_mark_ppos; | |
609 | int last_mark_ppos; | |
610 | int last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */ | |
611 | int first_data_ppos; | |
612 | int eod_frame_ppos; | |
613 | int eod_frame_lfa; | |
614 | int write_type; /* used in write error recovery */ | |
615 | int read_error_frame; /* used in read error recovery */ | |
616 | unsigned long cmd_start_time; | |
617 | unsigned long max_cmd_time; | |
618 | ||
619 | #if DEBUG | |
620 | unsigned char write_pending; | |
621 | int nbr_finished; | |
622 | int nbr_waits; | |
623 | unsigned char last_cmnd[6]; | |
624 | unsigned char last_sense[16]; | |
625 | #endif | |
626 | struct gendisk *drive; | |
627 | } ; | |
628 | ||
5e6575c0 WR |
629 | /* scsi tape command */ |
630 | struct osst_request { | |
631 | unsigned char cmd[MAX_COMMAND_SIZE]; | |
632 | unsigned char sense[SCSI_SENSE_BUFFERSIZE]; | |
633 | int result; | |
634 | struct osst_tape *stp; | |
635 | struct completion *waiting; | |
636 | }; | |
637 | ||
1da177e4 LT |
638 | /* Values of write_type */ |
639 | #define OS_WRITE_DATA 0 | |
640 | #define OS_WRITE_EOD 1 | |
641 | #define OS_WRITE_NEW_MARK 2 | |
642 | #define OS_WRITE_LAST_MARK 3 | |
643 | #define OS_WRITE_HEADER 4 | |
644 | #define OS_WRITE_FILLER 5 | |
645 | ||
646 | /* Additional rw state */ | |
647 | #define OS_WRITING_COMPLETE 3 |