2 * FreeBSD platform specific driver option settings, data structures,
3 * function declarations and includes.
5 * Copyright (c) 1994-2001 Justin T. Gibbs.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU Public License ("GPL").
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.h#15 $
34 * $FreeBSD: src/sys/dev/aic7xxx/aic7xxx_osm.h,v 1.14.2.6 2003/06/10 03:26:09 gibbs Exp $
35 * $DragonFly: src/sys/dev/disk/aic7xxx/aic7xxx_osm.h,v 1.9 2007/01/27 15:03:25 swildner Exp $
38 #ifndef _AIC7XXX_FREEBSD_H_
39 #define _AIC7XXX_FREEBSD_H_
41 #include <opt_aic7xxx.h> /* for config options */
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/bus.h> /* For device_t */
46 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
47 #include <sys/endian.h>
49 #include <sys/eventhandler.h>
50 #include <sys/kernel.h>
51 #include <sys/malloc.h>
52 #include <sys/queue.h>
54 #include <sys/thread2.h>
56 #if defined(__DragonFly__) || __FreeBSD_version < 500000
63 #define AHC_PCI_CONFIG 1
65 #include <machine/endian.h>
66 #include <machine/clock.h>
69 #include <bus/pci/pcireg.h>
70 #include <bus/pci/pcivar.h>
73 #include <bus/cam/cam.h>
74 #include <bus/cam/cam_ccb.h>
75 #include <bus/cam/cam_debug.h>
76 #include <bus/cam/cam_sim.h>
77 #include <bus/cam/cam_xpt_sim.h>
79 #include <bus/cam/scsi/scsi_all.h>
80 #include <bus/cam/scsi/scsi_message.h>
82 #ifdef CAM_NEW_TRAN_CODE
83 #define AHC_NEW_TRAN_SETTINGS
84 #endif /* CAM_NEW_TRAN_CODE */
86 /*************************** Attachment Bookkeeping ***************************/
87 extern devclass_t ahc_devclass;
89 /****************************** Platform Macros *******************************/
90 #define SIM_IS_SCSIBUS_B(ahc, sim) \
91 ((sim) == ahc->platform_data->sim_b)
92 #define SIM_CHANNEL(ahc, sim) \
93 (((sim) == ahc->platform_data->sim_b) ? 'B' : 'A')
94 #define SIM_SCSI_ID(ahc, sim) \
95 (((sim) == ahc->platform_data->sim_b) ? ahc->our_id_b : ahc->our_id)
96 #define SIM_PATH(ahc, sim) \
97 (((sim) == ahc->platform_data->sim_b) ? ahc->platform_data->path_b \
98 : ahc->platform_data->path)
99 #define BUILD_SCSIID(ahc, sim, target_id, our_id) \
100 ((((target_id) << TID_SHIFT) & TID) | (our_id) \
101 | (SIM_IS_SCSIBUS_B(ahc, sim) ? TWIN_CHNLB : 0))
103 #define SCB_GET_SIM(ahc, scb) \
104 (SCB_GET_CHANNEL(ahc, scb) == 'A' ? (ahc)->platform_data->sim \
105 : (ahc)->platform_data->sim_b)
108 #define offsetof(type, member) ((size_t)(&((type *)0)->member))
110 /************************* Forward Declarations *******************************/
111 typedef device_t ahc_dev_softc_t;
112 typedef union ccb *ahc_io_ctx_t;
114 /***************************** Bus Space/DMA **********************************/
115 #define ahc_dma_tag_create(ahc, parent_tag, alignment, boundary, \
116 lowaddr, highaddr, filter, filterarg, \
117 maxsize, nsegments, maxsegsz, flags, \
119 bus_dma_tag_create(parent_tag, alignment, boundary, \
120 lowaddr, highaddr, filter, filterarg, \
121 maxsize, nsegments, maxsegsz, flags, \
124 #define ahc_dma_tag_destroy(ahc, tag) \
125 bus_dma_tag_destroy(tag)
127 #define ahc_dmamem_alloc(ahc, dmat, vaddr, flags, mapp) \
128 bus_dmamem_alloc(dmat, vaddr, flags, mapp)
130 #define ahc_dmamem_free(ahc, dmat, vaddr, map) \
131 bus_dmamem_free(dmat, vaddr, map)
133 #define ahc_dmamap_create(ahc, tag, flags, mapp) \
134 bus_dmamap_create(tag, flags, mapp)
136 #define ahc_dmamap_destroy(ahc, tag, map) \
137 bus_dmamap_destroy(tag, map)
139 #define ahc_dmamap_load(ahc, dmat, map, addr, buflen, callback, \
140 callback_arg, flags) \
141 bus_dmamap_load(dmat, map, addr, buflen, callback, callback_arg, flags)
143 #define ahc_dmamap_unload(ahc, tag, map) \
144 bus_dmamap_unload(tag, map)
146 /* XXX Need to update Bus DMA for partial map syncs */
147 #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) \
148 bus_dmamap_sync(dma_tag, dmamap, op)
150 /************************ Tunable Driver Parameters **************************/
152 * The number of dma segments supported. The sequencer can handle any number
153 * of physically contiguous S/G entrys. To reduce the driver's memory
154 * consumption, we limit the number supported to be sufficient to handle
155 * the largest mapping supported by the kernel, MAXPHYS. Assuming the
156 * transfer is as fragmented as possible and unaligned, this turns out to
157 * be the number of paged sized transfers in MAXPHYS plus an extra element
158 * to handle any unaligned residual. The sequencer fetches SG elements
159 * in cacheline sized chucks, so make the number per-transaction an even
160 * multiple of 16 which should align us on even the largest of cacheline
163 #define AHC_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
165 /* This driver supports target mode */
166 #define AHC_TARGET_MODE 1
168 /************************** Softc/SCB Platform Data ***************************/
169 struct ahc_platform_data {
171 * Hooks into the XPT.
174 struct cam_sim *sim_b;
175 struct cam_path *path;
176 struct cam_path *path_b;
181 struct resource *regs;
182 struct resource *irq;
187 struct scb_platform_data {
190 /********************************* Byte Order *********************************/
191 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
192 #define ahc_htobe16(x) htobe16(x)
193 #define ahc_htobe32(x) htobe32(x)
194 #define ahc_htobe64(x) htobe64(x)
195 #define ahc_htole16(x) htole16(x)
196 #define ahc_htole32(x) htole32(x)
197 #define ahc_htole64(x) htole64(x)
199 #define ahc_be16toh(x) be16toh(x)
200 #define ahc_be32toh(x) be32toh(x)
201 #define ahc_be64toh(x) be64toh(x)
202 #define ahc_le16toh(x) le16toh(x)
203 #define ahc_le32toh(x) le32toh(x)
204 #define ahc_le64toh(x) le64toh(x)
206 #define ahc_htobe16(x) (x)
207 #define ahc_htobe32(x) (x)
208 #define ahc_htobe64(x) (x)
209 #define ahc_htole16(x) (x)
210 #define ahc_htole32(x) (x)
211 #define ahc_htole64(x) (x)
213 #define ahc_be16toh(x) (x)
214 #define ahc_be32toh(x) (x)
215 #define ahc_be64toh(x) (x)
216 #define ahc_le16toh(x) (x)
217 #define ahc_le32toh(x) (x)
218 #define ahc_le64toh(x) (x)
221 /************************** Timer DataStructures ******************************/
222 typedef struct callout ahc_timer_t;
224 /***************************** Core Includes **********************************/
225 #if AHC_REG_PRETTY_PRINT
226 #define AIC_DEBUG_REGISTERS 1
228 #define AIC_DEBUG_REGISTERS 0
232 /***************************** Timer Facilities *******************************/
233 timeout_t ahc_timeout;
235 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
236 #define ahc_timer_init(timer) callout_init(timer, /*mpsafe*/0)
238 #define ahc_timer_init callout_init
240 #define ahc_timer_stop callout_stop
243 ahc_timer_reset(ahc_timer_t *timer, u_int usec, ahc_callback_t *func, void *arg)
245 callout_reset(timer, (usec * hz)/1000000, func, arg);
249 ahc_scb_timer_reset(struct scb *scb, u_int usec)
251 callout_reset(&scb->io_ctx->ccb_h.timeout_ch, (usec * hz)/1000000,
255 /*************************** Device Access ************************************/
256 #define ahc_inb(ahc, port) \
257 bus_space_read_1((ahc)->tag, (ahc)->bsh, port)
259 #define ahc_outb(ahc, port, value) \
260 bus_space_write_1((ahc)->tag, (ahc)->bsh, port, value)
262 #define ahc_outsb(ahc, port, valp, count) \
263 bus_space_write_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count)
265 #define ahc_insb(ahc, port, valp, count) \
266 bus_space_read_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count)
268 static __inline void ahc_flush_device_writes(struct ahc_softc *);
271 ahc_flush_device_writes(struct ahc_softc *ahc)
273 /* XXX Is this sufficient for all architectures??? */
274 ahc_inb(ahc, INTSTAT);
277 /**************************** Locking Primitives ******************************/
278 /* Lock protecting internal data structures */
279 static __inline void ahc_lock(void);
280 static __inline void ahc_unlock(void);
285 crit_enter_id("ahc");
294 /****************************** OS Primitives *********************************/
295 #define ahc_delay DELAY
297 /************************** Transaction Operations ****************************/
298 static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
299 static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
300 static __inline uint32_t ahc_get_transaction_status(struct scb *);
301 static __inline uint32_t ahc_get_scsi_status(struct scb *);
302 static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
303 static __inline u_long ahc_get_transfer_length(struct scb *);
304 static __inline int ahc_get_transfer_dir(struct scb *);
305 static __inline void ahc_set_residual(struct scb *, u_long);
306 static __inline void ahc_set_sense_residual(struct scb *, u_long);
307 static __inline u_long ahc_get_residual(struct scb *);
308 static __inline int ahc_perform_autosense(struct scb *);
309 static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc*, struct scb*);
310 static __inline void ahc_freeze_ccb(union ccb *ccb);
311 static __inline void ahc_freeze_scb(struct scb *scb);
312 static __inline void ahc_platform_freeze_devq(struct ahc_softc *, struct scb *);
313 static __inline int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
314 char channel, int lun, u_int tag,
315 role_t role, uint32_t status);
318 void ahc_set_transaction_status(struct scb *scb, uint32_t status)
320 scb->io_ctx->ccb_h.status &= ~CAM_STATUS_MASK;
321 scb->io_ctx->ccb_h.status |= status;
325 void ahc_set_scsi_status(struct scb *scb, uint32_t status)
327 scb->io_ctx->csio.scsi_status = status;
331 uint32_t ahc_get_transaction_status(struct scb *scb)
333 return (scb->io_ctx->ccb_h.status & CAM_STATUS_MASK);
337 uint32_t ahc_get_scsi_status(struct scb *scb)
339 return (scb->io_ctx->csio.scsi_status);
343 void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
345 scb->io_ctx->csio.tag_action = type;
347 scb->io_ctx->ccb_h.flags |= CAM_TAG_ACTION_VALID;
349 scb->io_ctx->ccb_h.flags &= ~CAM_TAG_ACTION_VALID;
353 u_long ahc_get_transfer_length(struct scb *scb)
355 return (scb->io_ctx->csio.dxfer_len);
359 int ahc_get_transfer_dir(struct scb *scb)
361 return (scb->io_ctx->ccb_h.flags & CAM_DIR_MASK);
365 void ahc_set_residual(struct scb *scb, u_long resid)
367 scb->io_ctx->csio.resid = resid;
371 void ahc_set_sense_residual(struct scb *scb, u_long resid)
373 scb->io_ctx->csio.sense_resid = resid;
377 u_long ahc_get_residual(struct scb *scb)
379 return (scb->io_ctx->csio.resid);
383 int ahc_perform_autosense(struct scb *scb)
385 return (!(scb->io_ctx->ccb_h.flags & CAM_DIS_AUTOSENSE));
388 static __inline uint32_t
389 ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
391 return (sizeof(struct scsi_sense_data));
395 ahc_freeze_ccb(union ccb *ccb)
397 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
398 ccb->ccb_h.status |= CAM_DEV_QFRZN;
399 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
404 ahc_freeze_scb(struct scb *scb)
406 ahc_freeze_ccb(scb->io_ctx);
410 ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb)
412 /* Nothing to do here for FreeBSD */
416 ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
417 char channel, int lun, u_int tag,
418 role_t role, uint32_t status)
420 /* Nothing to do here for FreeBSD */
425 ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
427 /* What do we do to generically handle driver resource shortages??? */
428 if ((ahc->flags & AHC_RESOURCE_SHORTAGE) != 0
429 && scb->io_ctx != NULL
430 && (scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
431 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
432 ahc->flags &= ~AHC_RESOURCE_SHORTAGE;
437 /********************************** PCI ***************************************/
438 #ifdef AHC_PCI_CONFIG
439 static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
441 static __inline void ahc_pci_write_config(ahc_dev_softc_t pci,
442 int reg, uint32_t value,
444 static __inline int ahc_get_pci_function(ahc_dev_softc_t);
445 static __inline int ahc_get_pci_slot(ahc_dev_softc_t);
446 static __inline int ahc_get_pci_bus(ahc_dev_softc_t);
448 int ahc_pci_map_registers(struct ahc_softc *ahc);
449 int ahc_pci_map_int(struct ahc_softc *ahc);
451 static __inline uint32_t
452 ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
454 return (pci_read_config(pci, reg, width));
458 ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
460 pci_write_config(pci, reg, value, width);
464 ahc_get_pci_function(ahc_dev_softc_t pci)
466 return (pci_get_function(pci));
470 ahc_get_pci_slot(ahc_dev_softc_t pci)
472 return (pci_get_slot(pci));
476 ahc_get_pci_bus(ahc_dev_softc_t pci)
478 return (pci_get_bus(pci));
489 void ahc_power_state_change(struct ahc_softc *ahc,
490 ahc_power_state new_state);
492 /******************************** VL/EISA *************************************/
493 int aic7770_map_registers(struct ahc_softc *ahc, u_int port);
494 int aic7770_map_int(struct ahc_softc *ahc, int irq);
496 /********************************* Debug **************************************/
497 static __inline void ahc_print_path(struct ahc_softc *, struct scb *);
498 static __inline void ahc_platform_dump_card_state(struct ahc_softc *ahc);
501 ahc_print_path(struct ahc_softc *ahc, struct scb *scb)
503 xpt_print_path(scb->io_ctx->ccb_h.path);
507 ahc_platform_dump_card_state(struct ahc_softc *ahc)
509 /* Nothing to do here for FreeBSD */
511 /**************************** Transfer Settings *******************************/
512 void ahc_notify_xfer_settings_change(struct ahc_softc *,
513 struct ahc_devinfo *);
514 void ahc_platform_set_tags(struct ahc_softc *, struct ahc_devinfo *,
517 /************************* Initialization/Teardown ****************************/
518 int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
519 void ahc_platform_free(struct ahc_softc *ahc);
520 int ahc_map_int(struct ahc_softc *ahc);
521 int ahc_attach(struct ahc_softc *);
522 int ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc);
523 int ahc_detach(device_t);
525 /****************************** Interrupts ************************************/
526 void ahc_platform_intr(void *);
527 static __inline void ahc_platform_flushwork(struct ahc_softc *ahc);
529 ahc_platform_flushwork(struct ahc_softc *ahc)
533 /************************ Misc Function Declarations **************************/
534 void ahc_done(struct ahc_softc *ahc, struct scb *scb);
535 void ahc_send_async(struct ahc_softc *, char /*channel*/,
536 u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
537 #endif /* _AIC7XXX_FREEBSD_H_ */