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59#ifndef _AIC7XXX_LINUX_H_
60#define _AIC7XXX_LINUX_H_
61
62#include <linux/types.h>
63#include <linux/blkdev.h>
64#include <linux/delay.h>
65#include <linux/ioport.h>
66#include <linux/pci.h>
67#include <linux/interrupt.h>
68#include <linux/module.h>
69#include <linux/slab.h>
70#include <asm/byteorder.h>
71#include <asm/io.h>
72
73#include <scsi/scsi.h>
74#include <scsi/scsi_cmnd.h>
75#include <scsi/scsi_eh.h>
76#include <scsi/scsi_device.h>
77#include <scsi/scsi_host.h>
78#include <scsi/scsi_tcq.h>
79#include <scsi/scsi_transport.h>
80#include <scsi/scsi_transport_spi.h>
81
82
83#define AIC_LIB_PREFIX ahc
84
85
86#ifdef LIST_HEAD
87#undef LIST_HEAD
88#endif
89
90#include "cam.h"
91#include "queue.h"
92#include "scsi_message.h"
93#include "aiclib.h"
94
95
96#ifdef CONFIG_AIC7XXX_DEBUG_ENABLE
97#ifdef CONFIG_AIC7XXX_DEBUG_MASK
98#define AHC_DEBUG 1
99#define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK
100#else
101
102
103
104#define AHC_DEBUG 1
105#endif
106
107#endif
108
109
110struct ahc_softc;
111typedef struct pci_dev *ahc_dev_softc_t;
112typedef struct scsi_cmnd *ahc_io_ctx_t;
113
114
115#define ahc_htobe16(x) cpu_to_be16(x)
116#define ahc_htobe32(x) cpu_to_be32(x)
117#define ahc_htobe64(x) cpu_to_be64(x)
118#define ahc_htole16(x) cpu_to_le16(x)
119#define ahc_htole32(x) cpu_to_le32(x)
120#define ahc_htole64(x) cpu_to_le64(x)
121
122#define ahc_be16toh(x) be16_to_cpu(x)
123#define ahc_be32toh(x) be32_to_cpu(x)
124#define ahc_be64toh(x) be64_to_cpu(x)
125#define ahc_le16toh(x) le16_to_cpu(x)
126#define ahc_le32toh(x) le32_to_cpu(x)
127#define ahc_le64toh(x) le64_to_cpu(x)
128
129
130extern u_int aic7xxx_no_probe;
131extern u_int aic7xxx_allow_memio;
132extern struct scsi_host_template aic7xxx_driver_template;
133
134
135
136typedef uint32_t bus_size_t;
137
138typedef enum {
139 BUS_SPACE_MEMIO,
140 BUS_SPACE_PIO
141} bus_space_tag_t;
142
143typedef union {
144 u_long ioport;
145 volatile uint8_t __iomem *maddr;
146} bus_space_handle_t;
147
148typedef struct bus_dma_segment
149{
150 dma_addr_t ds_addr;
151 bus_size_t ds_len;
152} bus_dma_segment_t;
153
154struct ahc_linux_dma_tag
155{
156 bus_size_t alignment;
157 bus_size_t boundary;
158 bus_size_t maxsize;
159};
160typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
161
162typedef dma_addr_t bus_dmamap_t;
163
164typedef int bus_dma_filter_t(void*, dma_addr_t);
165typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
166
167#define BUS_DMA_WAITOK 0x0
168#define BUS_DMA_NOWAIT 0x1
169#define BUS_DMA_ALLOCNOW 0x2
170#define BUS_DMA_LOAD_SEGS 0x4
171
172
173
174
175#define BUS_SPACE_MAXADDR 0xFFFFFFFF
176#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
177#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
178
179int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t ,
180 bus_size_t , bus_size_t ,
181 dma_addr_t , dma_addr_t ,
182 bus_dma_filter_t*, void *,
183 bus_size_t , int ,
184 bus_size_t , int ,
185 bus_dma_tag_t *);
186
187void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t );
188
189int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t ,
190 void** , int ,
191 bus_dmamap_t* );
192
193void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t ,
194 void* , bus_dmamap_t );
195
196void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t ,
197 bus_dmamap_t );
198
199int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t ,
200 bus_dmamap_t , void * ,
201 bus_size_t , bus_dmamap_callback_t *,
202 void *, int );
203
204int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t);
205
206
207
208
209#define BUS_DMASYNC_PREREAD 0x01
210#define BUS_DMASYNC_POSTREAD 0x02
211#define BUS_DMASYNC_PREWRITE 0x04
212#define BUS_DMASYNC_POSTWRITE 0x08
213
214
215
216
217
218
219
220
221
222#define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
223
224
225#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
226#define AIC_DEBUG_REGISTERS 1
227#else
228#define AIC_DEBUG_REGISTERS 0
229#endif
230#include "aic7xxx.h"
231
232
233static inline void
234ahc_scb_timer_reset(struct scb *scb, u_int usec)
235{
236}
237
238
239#include <linux/spinlock.h>
240
241#define AIC7XXX_DRIVER_VERSION "7.0"
242
243
244
245
246
247
248
249
250
251typedef enum {
252 AHC_DEV_FREEZE_TIL_EMPTY = 0x02,
253 AHC_DEV_Q_BASIC = 0x10,
254 AHC_DEV_Q_TAGGED = 0x20,
255 AHC_DEV_PERIODIC_OTAG = 0x40,
256} ahc_linux_dev_flags;
257
258struct ahc_linux_device {
259
260
261
262
263 int active;
264
265
266
267
268
269
270
271
272
273 int openings;
274
275
276
277
278
279 u_int qfrozen;
280
281
282
283
284 u_long commands_issued;
285
286
287
288
289
290
291
292 u_int tag_success_count;
293#define AHC_TAG_SUCCESS_INTERVAL 50
294
295 ahc_linux_dev_flags flags;
296
297
298
299
300 u_int maxtags;
301
302
303
304
305
306 u_int tags_on_last_queuefull;
307
308
309
310
311
312
313
314 u_int last_queuefull_same_count;
315#define AHC_LOCK_TAGS_COUNT 50
316
317
318
319
320
321
322
323
324
325
326 u_int commands_since_idle_or_otag;
327#define AHC_OTAG_THRESH 500
328};
329
330
331
332
333
334
335
336
337#define AHC_NSEG 128
338
339
340
341
342struct scb_platform_data {
343 struct ahc_linux_device *dev;
344 dma_addr_t buf_busaddr;
345 uint32_t xfer_len;
346 uint32_t sense_resid;
347};
348
349
350
351
352
353
354
355struct ahc_platform_data {
356
357
358
359 struct scsi_target *starget[AHC_NUM_TARGETS];
360
361 spinlock_t spin_lock;
362 u_int qfrozen;
363 struct completion *eh_done;
364 struct Scsi_Host *host;
365#define AHC_LINUX_NOIRQ ((uint32_t)~0)
366 uint32_t irq;
367 uint32_t bios_address;
368 resource_size_t mem_busaddr;
369};
370
371
372#define printf printk
373#define M_NOWAIT GFP_ATOMIC
374#define M_WAITOK 0
375#define malloc(size, type, flags) kmalloc(size, flags)
376#define free(ptr, type) kfree(ptr)
377
378void ahc_delay(long);
379
380
381
382uint8_t ahc_inb(struct ahc_softc * ahc, long port);
383void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
384void ahc_outsb(struct ahc_softc * ahc, long port,
385 uint8_t *, int count);
386void ahc_insb(struct ahc_softc * ahc, long port,
387 uint8_t *, int count);
388
389
390int ahc_linux_register_host(struct ahc_softc *,
391 struct scsi_host_template *);
392
393
394struct info_str {
395 char *buffer;
396 int length;
397 off_t offset;
398 int pos;
399};
400
401
402
403
404static inline void
405ahc_lockinit(struct ahc_softc *ahc)
406{
407 spin_lock_init(&ahc->platform_data->spin_lock);
408}
409
410static inline void
411ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
412{
413 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
414}
415
416static inline void
417ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
418{
419 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
420}
421
422
423
424
425
426
427
428
429
430
431
432#define PCIR_DEVVENDOR 0x00
433#define PCIR_VENDOR 0x00
434#define PCIR_DEVICE 0x02
435#define PCIR_COMMAND 0x04
436#define PCIM_CMD_PORTEN 0x0001
437#define PCIM_CMD_MEMEN 0x0002
438#define PCIM_CMD_BUSMASTEREN 0x0004
439#define PCIM_CMD_MWRICEN 0x0010
440#define PCIM_CMD_PERRESPEN 0x0040
441#define PCIM_CMD_SERRESPEN 0x0100
442#define PCIR_STATUS 0x06
443#define PCIR_REVID 0x08
444#define PCIR_PROGIF 0x09
445#define PCIR_SUBCLASS 0x0a
446#define PCIR_CLASS 0x0b
447#define PCIR_CACHELNSZ 0x0c
448#define PCIR_LATTIMER 0x0d
449#define PCIR_HEADERTYPE 0x0e
450#define PCIM_MFDEV 0x80
451#define PCIR_BIST 0x0f
452#define PCIR_CAP_PTR 0x34
453
454
455#define PCIR_MAPS 0x10
456#define PCIR_SUBVEND_0 0x2c
457#define PCIR_SUBDEV_0 0x2e
458
459typedef enum
460{
461 AHC_POWER_STATE_D0,
462 AHC_POWER_STATE_D1,
463 AHC_POWER_STATE_D2,
464 AHC_POWER_STATE_D3
465} ahc_power_state;
466
467
468#ifdef CONFIG_EISA
469int ahc_linux_eisa_init(void);
470void ahc_linux_eisa_exit(void);
471int aic7770_map_registers(struct ahc_softc *ahc,
472 u_int port);
473int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
474#else
475static inline int ahc_linux_eisa_init(void) {
476 return -ENODEV;
477}
478static inline void ahc_linux_eisa_exit(void) {
479}
480#endif
481
482
483#ifdef CONFIG_PCI
484int ahc_linux_pci_init(void);
485void ahc_linux_pci_exit(void);
486int ahc_pci_map_registers(struct ahc_softc *ahc);
487int ahc_pci_map_int(struct ahc_softc *ahc);
488
489uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
490 int reg, int width);
491
492void ahc_pci_write_config(ahc_dev_softc_t pci,
493 int reg, uint32_t value,
494 int width);
495
496static inline int ahc_get_pci_function(ahc_dev_softc_t);
497static inline int
498ahc_get_pci_function(ahc_dev_softc_t pci)
499{
500 return (PCI_FUNC(pci->devfn));
501}
502
503static inline int ahc_get_pci_slot(ahc_dev_softc_t);
504static inline int
505ahc_get_pci_slot(ahc_dev_softc_t pci)
506{
507 return (PCI_SLOT(pci->devfn));
508}
509
510static inline int ahc_get_pci_bus(ahc_dev_softc_t);
511static inline int
512ahc_get_pci_bus(ahc_dev_softc_t pci)
513{
514 return (pci->bus->number);
515}
516#else
517static inline int ahc_linux_pci_init(void) {
518 return 0;
519}
520static inline void ahc_linux_pci_exit(void) {
521}
522#endif
523
524static inline void ahc_flush_device_writes(struct ahc_softc *);
525static inline void
526ahc_flush_device_writes(struct ahc_softc *ahc)
527{
528
529 ahc_inb(ahc, INTSTAT);
530}
531
532
533int ahc_linux_proc_info(struct Scsi_Host *, char *, char **,
534 off_t, int, int);
535
536
537
538static inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
539static inline void ahc_set_transaction_status(struct scb *, uint32_t);
540static inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
541static inline void ahc_set_scsi_status(struct scb *, uint32_t);
542static inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
543static inline uint32_t ahc_get_transaction_status(struct scb *);
544static inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
545static inline uint32_t ahc_get_scsi_status(struct scb *);
546static inline void ahc_set_transaction_tag(struct scb *, int, u_int);
547static inline u_long ahc_get_transfer_length(struct scb *);
548static inline int ahc_get_transfer_dir(struct scb *);
549static inline void ahc_set_residual(struct scb *, u_long);
550static inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
551static inline u_long ahc_get_residual(struct scb *);
552static inline u_long ahc_get_sense_residual(struct scb *);
553static inline int ahc_perform_autosense(struct scb *);
554static inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
555 struct scb *);
556static inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
557 struct ahc_devinfo *);
558static inline void ahc_platform_scb_free(struct ahc_softc *ahc,
559 struct scb *scb);
560static inline void ahc_freeze_scb(struct scb *scb);
561
562static inline
563void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
564{
565 cmd->result &= ~(CAM_STATUS_MASK << 16);
566 cmd->result |= status << 16;
567}
568
569static inline
570void ahc_set_transaction_status(struct scb *scb, uint32_t status)
571{
572 ahc_cmd_set_transaction_status(scb->io_ctx,status);
573}
574
575static inline
576void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
577{
578 cmd->result &= ~0xFFFF;
579 cmd->result |= status;
580}
581
582static inline
583void ahc_set_scsi_status(struct scb *scb, uint32_t status)
584{
585 ahc_cmd_set_scsi_status(scb->io_ctx, status);
586}
587
588static inline
589uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
590{
591 return ((cmd->result >> 16) & CAM_STATUS_MASK);
592}
593
594static inline
595uint32_t ahc_get_transaction_status(struct scb *scb)
596{
597 return (ahc_cmd_get_transaction_status(scb->io_ctx));
598}
599
600static inline
601uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
602{
603 return (cmd->result & 0xFFFF);
604}
605
606static inline
607uint32_t ahc_get_scsi_status(struct scb *scb)
608{
609 return (ahc_cmd_get_scsi_status(scb->io_ctx));
610}
611
612static inline
613void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
614{
615
616
617
618
619}
620
621static inline
622u_long ahc_get_transfer_length(struct scb *scb)
623{
624 return (scb->platform_data->xfer_len);
625}
626
627static inline
628int ahc_get_transfer_dir(struct scb *scb)
629{
630 return (scb->io_ctx->sc_data_direction);
631}
632
633static inline
634void ahc_set_residual(struct scb *scb, u_long resid)
635{
636 scsi_set_resid(scb->io_ctx, resid);
637}
638
639static inline
640void ahc_set_sense_residual(struct scb *scb, u_long resid)
641{
642 scb->platform_data->sense_resid = resid;
643}
644
645static inline
646u_long ahc_get_residual(struct scb *scb)
647{
648 return scsi_get_resid(scb->io_ctx);
649}
650
651static inline
652u_long ahc_get_sense_residual(struct scb *scb)
653{
654 return (scb->platform_data->sense_resid);
655}
656
657static inline
658int ahc_perform_autosense(struct scb *scb)
659{
660
661
662
663
664
665 return (1);
666}
667
668static inline uint32_t
669ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
670{
671 return (sizeof(struct scsi_sense_data));
672}
673
674static inline void
675ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
676 struct ahc_devinfo *devinfo)
677{
678
679}
680
681static inline void
682ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
683{
684}
685
686int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
687void ahc_platform_free(struct ahc_softc *ahc);
688void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
689
690static inline void
691ahc_freeze_scb(struct scb *scb)
692{
693 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
694 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
695 scb->platform_data->dev->qfrozen++;
696 }
697}
698
699void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
700 struct ahc_devinfo *devinfo, ahc_queue_alg);
701int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
702 char channel, int lun, u_int tag,
703 role_t role, uint32_t status);
704irqreturn_t
705 ahc_linux_isr(int irq, void *dev_id);
706void ahc_platform_flushwork(struct ahc_softc *ahc);
707void ahc_done(struct ahc_softc*, struct scb*);
708void ahc_send_async(struct ahc_softc *, char channel,
709 u_int target, u_int lun, ac_code);
710void ahc_print_path(struct ahc_softc *, struct scb *);
711void ahc_platform_dump_card_state(struct ahc_softc *ahc);
712
713#ifdef CONFIG_PCI
714#define AHC_PCI_CONFIG 1
715#else
716#define AHC_PCI_CONFIG 0
717#endif
718#define bootverbose aic7xxx_verbose
719extern u_int aic7xxx_verbose;
720#endif
721