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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
371void ahc_delay(long);
372
373
374
375uint8_t ahc_inb(struct ahc_softc * ahc, long port);
376void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
377void ahc_outsb(struct ahc_softc * ahc, long port,
378 uint8_t *, int count);
379void ahc_insb(struct ahc_softc * ahc, long port,
380 uint8_t *, int count);
381
382
383int ahc_linux_register_host(struct ahc_softc *,
384 struct scsi_host_template *);
385
386
387
388
389static inline void
390ahc_lockinit(struct ahc_softc *ahc)
391{
392 spin_lock_init(&ahc->platform_data->spin_lock);
393}
394
395static inline void
396ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
397{
398 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
399}
400
401static inline void
402ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
403{
404 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
405}
406
407
408
409
410
411
412
413
414
415
416
417#define PCIR_DEVVENDOR 0x00
418#define PCIR_VENDOR 0x00
419#define PCIR_DEVICE 0x02
420#define PCIR_COMMAND 0x04
421#define PCIM_CMD_PORTEN 0x0001
422#define PCIM_CMD_MEMEN 0x0002
423#define PCIM_CMD_BUSMASTEREN 0x0004
424#define PCIM_CMD_MWRICEN 0x0010
425#define PCIM_CMD_PERRESPEN 0x0040
426#define PCIM_CMD_SERRESPEN 0x0100
427#define PCIR_STATUS 0x06
428#define PCIR_REVID 0x08
429#define PCIR_PROGIF 0x09
430#define PCIR_SUBCLASS 0x0a
431#define PCIR_CLASS 0x0b
432#define PCIR_CACHELNSZ 0x0c
433#define PCIR_LATTIMER 0x0d
434#define PCIR_HEADERTYPE 0x0e
435#define PCIM_MFDEV 0x80
436#define PCIR_BIST 0x0f
437#define PCIR_CAP_PTR 0x34
438
439
440#define PCIR_MAPS 0x10
441#define PCIR_SUBVEND_0 0x2c
442#define PCIR_SUBDEV_0 0x2e
443
444typedef enum
445{
446 AHC_POWER_STATE_D0,
447 AHC_POWER_STATE_D1,
448 AHC_POWER_STATE_D2,
449 AHC_POWER_STATE_D3
450} ahc_power_state;
451
452
453#ifdef CONFIG_EISA
454int ahc_linux_eisa_init(void);
455void ahc_linux_eisa_exit(void);
456int aic7770_map_registers(struct ahc_softc *ahc,
457 u_int port);
458int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
459#else
460static inline int ahc_linux_eisa_init(void) {
461 return -ENODEV;
462}
463static inline void ahc_linux_eisa_exit(void) {
464}
465#endif
466
467
468#ifdef CONFIG_PCI
469int ahc_linux_pci_init(void);
470void ahc_linux_pci_exit(void);
471int ahc_pci_map_registers(struct ahc_softc *ahc);
472int ahc_pci_map_int(struct ahc_softc *ahc);
473
474uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
475 int reg, int width);
476
477void ahc_pci_write_config(ahc_dev_softc_t pci,
478 int reg, uint32_t value,
479 int width);
480
481static inline int ahc_get_pci_function(ahc_dev_softc_t);
482static inline int
483ahc_get_pci_function(ahc_dev_softc_t pci)
484{
485 return (PCI_FUNC(pci->devfn));
486}
487
488static inline int ahc_get_pci_slot(ahc_dev_softc_t);
489static inline int
490ahc_get_pci_slot(ahc_dev_softc_t pci)
491{
492 return (PCI_SLOT(pci->devfn));
493}
494
495static inline int ahc_get_pci_bus(ahc_dev_softc_t);
496static inline int
497ahc_get_pci_bus(ahc_dev_softc_t pci)
498{
499 return (pci->bus->number);
500}
501#else
502static inline int ahc_linux_pci_init(void) {
503 return 0;
504}
505static inline void ahc_linux_pci_exit(void) {
506}
507#endif
508
509static inline void ahc_flush_device_writes(struct ahc_softc *);
510static inline void
511ahc_flush_device_writes(struct ahc_softc *ahc)
512{
513
514 ahc_inb(ahc, INTSTAT);
515}
516
517
518int ahc_proc_write_seeprom(struct Scsi_Host *, char *, int);
519int ahc_linux_show_info(struct seq_file *, struct Scsi_Host *);
520
521
522
523static inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
524static inline void ahc_set_transaction_status(struct scb *, uint32_t);
525static inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
526static inline void ahc_set_scsi_status(struct scb *, uint32_t);
527static inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
528static inline uint32_t ahc_get_transaction_status(struct scb *);
529static inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
530static inline uint32_t ahc_get_scsi_status(struct scb *);
531static inline void ahc_set_transaction_tag(struct scb *, int, u_int);
532static inline u_long ahc_get_transfer_length(struct scb *);
533static inline int ahc_get_transfer_dir(struct scb *);
534static inline void ahc_set_residual(struct scb *, u_long);
535static inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
536static inline u_long ahc_get_residual(struct scb *);
537static inline u_long ahc_get_sense_residual(struct scb *);
538static inline int ahc_perform_autosense(struct scb *);
539static inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
540 struct scb *);
541static inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
542 struct ahc_devinfo *);
543static inline void ahc_platform_scb_free(struct ahc_softc *ahc,
544 struct scb *scb);
545static inline void ahc_freeze_scb(struct scb *scb);
546
547static inline
548void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
549{
550 cmd->result &= ~(CAM_STATUS_MASK << 16);
551 cmd->result |= status << 16;
552}
553
554static inline
555void ahc_set_transaction_status(struct scb *scb, uint32_t status)
556{
557 ahc_cmd_set_transaction_status(scb->io_ctx,status);
558}
559
560static inline
561void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
562{
563 cmd->result &= ~0xFFFF;
564 cmd->result |= status;
565}
566
567static inline
568void ahc_set_scsi_status(struct scb *scb, uint32_t status)
569{
570 ahc_cmd_set_scsi_status(scb->io_ctx, status);
571}
572
573static inline
574uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
575{
576 return ((cmd->result >> 16) & CAM_STATUS_MASK);
577}
578
579static inline
580uint32_t ahc_get_transaction_status(struct scb *scb)
581{
582 return (ahc_cmd_get_transaction_status(scb->io_ctx));
583}
584
585static inline
586uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
587{
588 return (cmd->result & 0xFFFF);
589}
590
591static inline
592uint32_t ahc_get_scsi_status(struct scb *scb)
593{
594 return (ahc_cmd_get_scsi_status(scb->io_ctx));
595}
596
597static inline
598void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
599{
600
601
602
603
604}
605
606static inline
607u_long ahc_get_transfer_length(struct scb *scb)
608{
609 return (scb->platform_data->xfer_len);
610}
611
612static inline
613int ahc_get_transfer_dir(struct scb *scb)
614{
615 return (scb->io_ctx->sc_data_direction);
616}
617
618static inline
619void ahc_set_residual(struct scb *scb, u_long resid)
620{
621 scsi_set_resid(scb->io_ctx, resid);
622}
623
624static inline
625void ahc_set_sense_residual(struct scb *scb, u_long resid)
626{
627 scb->platform_data->sense_resid = resid;
628}
629
630static inline
631u_long ahc_get_residual(struct scb *scb)
632{
633 return scsi_get_resid(scb->io_ctx);
634}
635
636static inline
637u_long ahc_get_sense_residual(struct scb *scb)
638{
639 return (scb->platform_data->sense_resid);
640}
641
642static inline
643int ahc_perform_autosense(struct scb *scb)
644{
645
646
647
648
649
650 return (1);
651}
652
653static inline uint32_t
654ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
655{
656 return (sizeof(struct scsi_sense_data));
657}
658
659static inline void
660ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
661 struct ahc_devinfo *devinfo)
662{
663
664}
665
666static inline void
667ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
668{
669}
670
671int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
672void ahc_platform_free(struct ahc_softc *ahc);
673void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
674
675static inline void
676ahc_freeze_scb(struct scb *scb)
677{
678 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
679 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
680 scb->platform_data->dev->qfrozen++;
681 }
682}
683
684void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
685 struct ahc_devinfo *devinfo, ahc_queue_alg);
686int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
687 char channel, int lun, u_int tag,
688 role_t role, uint32_t status);
689irqreturn_t
690 ahc_linux_isr(int irq, void *dev_id);
691void ahc_platform_flushwork(struct ahc_softc *ahc);
692void ahc_done(struct ahc_softc*, struct scb*);
693void ahc_send_async(struct ahc_softc *, char channel,
694 u_int target, u_int lun, ac_code);
695void ahc_print_path(struct ahc_softc *, struct scb *);
696void ahc_platform_dump_card_state(struct ahc_softc *ahc);
697
698#ifdef CONFIG_PCI
699#define AHC_PCI_CONFIG 1
700#else
701#define AHC_PCI_CONFIG 0
702#endif
703#define bootverbose aic7xxx_verbose
704extern u_int aic7xxx_verbose;
705#endif
706