Annotation of sys/dev/ic/aic7xxx_openbsd.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: aic7xxx_openbsd.h,v 1.18 2007/05/02 02:20:37 krw Exp $ */
2: /* $NetBSD: aic7xxx_osm.h,v 1.7 2003/11/02 11:07:44 wiz Exp $ */
3:
4: /*
5: * OpenBSD platform specific driver option settings, data structures,
6: * function declarations and includes.
7: *
8: * Copyright (c) 1994-2001 Justin T. Gibbs.
9: * Copyright (c) 2001-2002 Steve Murphree, Jr.
10: * All rights reserved.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions, and the following disclaimer,
17: * without modification.
18: * 2. The name of the author(s) may not be used to endorse or promote products
19: * derived from this software without specific prior written permission.
20: *
21: * Alternatively, this software may be distributed under the terms of the
22: * GNU Public License ("GPL").
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
28: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.h#14 $
37: *
38: * $FreeBSD: /repoman/r/ncvs/src/sys/dev/aic7xxx/aic7xxx_osm.h,v 1.20 2002/12/04 22:51:29 scottl Exp $
39: */
40: /*
41: * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. - April 2003
42: */
43:
44: #ifndef _AIC7XXX_OPENBSD_H_
45: #define _AIC7XXX_OPENBSD_H_
46:
47: #include "pci.h" /* for config options */
48:
49: #include <sys/param.h>
50: #include <sys/kernel.h>
51: #include <sys/systm.h>
52: #include <sys/device.h>
53: #include <sys/malloc.h>
54: #include <sys/buf.h>
55: #include <sys/proc.h>
56: #include <sys/queue.h>
57:
58: #include <dev/pci/pcireg.h>
59: #include <dev/pci/pcivar.h>
60:
61: #include <machine/bus.h>
62: #include <machine/intr.h>
63:
64: #include <scsi/scsi_all.h>
65: #include <scsi/scsi_message.h>
66: #include <scsi/scsi_debug.h>
67: #include <scsi/scsiconf.h>
68:
69: #include <uvm/uvm_extern.h>
70:
71: #ifdef CAM_NEW_TRAN_CODE
72: #define AHC_NEW_TRAN_SETTINGS
73: #endif /* CAM_NEW_TRAN_CODE */
74:
75: #if NPCI > 0
76: #define AHC_PCI_CONFIG 1
77: #endif
78:
79: #if 0
80: #define AHC_DEBUG AHC_SHOW_SENSE | AHC_SHOW_MISC | AHC_SHOW_CMDS
81: #endif
82:
83: #ifdef DEBUG
84: #define bootverbose 1
85: #else
86: #define bootverbose 0
87: #endif
88: /****************************** Platform Macros *******************************/
89:
90: #define SCSI_IS_SCSIBUS_B(ahc, sc_link) \
91: ((sc_link)->scsibus == (ahc)->sc_channel_b.scsibus)
92: #define SCSI_SCSI_ID(ahc, sc_link) \
93: (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? ahc->our_id_b : ahc->our_id)
94: #define SCSI_CHANNEL(ahc, sc_link) \
95: (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? 'B' : 'A')
96: #define BUILD_SCSIID(ahc, sc_link, target_id, our_id) \
97: ((((target_id) << TID_SHIFT) & TID) | (our_id) \
98: | (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? TWIN_CHNLB : 0))
99:
100: #ifndef offsetof
101: #define offsetof(type, member) ((size_t)(&((type *)0)->member))
102: #endif
103: /************************* Forward Declarations *******************************/
104: typedef struct pci_attach_args * ahc_dev_softc_t;
105:
106: /***************************** Bus Space/DMA **********************************/
107:
108: /* XXX Need to update Bus DMA for partial map syncs */
109: #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) \
110: bus_dmamap_sync(dma_tag, dmamap, offset, len, op)
111:
112: /************************ Tunable Driver Parameters **************************/
113: /*
114: * The number of DMA segments supported. The sequencer can handle any number
115: * of physically contiguous S/G entries. To reduce the driver's memory
116: * consumption, we limit the number supported to be sufficient to handle
117: * the largest mapping supported by the kernel, MAXPHYS. Assuming the
118: * transfer is as fragmented as possible and unaligned, this turns out to
119: * be the number of paged sized transfers in MAXPHYS plus an extra element
120: * to handle any unaligned residual. The sequencer fetches SG elements
121: * in cacheline sized chucks, so make the number per-transaction an even
122: * multiple of 16 which should align us on even the largest of cacheline
123: * boundaries.
124: */
125: #define AHC_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
126:
127: /* This driver supports target mode */
128: //#define AHC_TARGET_MODE 1
129:
130: #include <dev/ic/aic7xxxvar.h>
131:
132: /************************** Softc/SCB Platform Data ***************************/
133: struct ahc_platform_data {
134: };
135:
136: struct scb_platform_data {
137: };
138:
139: /*
140: * Some ISA devices (e.g. on a VLB) can perform 32-bit DMA. This
141: * flag is passed to bus_dmamap_create() to indicate that fact.
142: */
143: #ifndef ISABUS_DMA_32BIT
144: #define ISABUS_DMA_32BIT BUS_DMA_BUS1
145: #endif
146:
147: /************************** Timer DataStructures ******************************/
148: typedef struct timeout ahc_timer_t;
149:
150: /***************************** Core Includes **********************************/
151: #if AHC_REG_PRETTY_PRINT
152: #define AIC_DEBUG_REGISTERS 1
153: #else
154: #define AIC_DEBUG_REGISTERS 0
155: #endif
156:
157: /***************************** Timer Facilities *******************************/
158: void ahc_timeout(void*);
159:
160: #define ahc_timer_init callout_init
161: #define ahc_timer_stop callout_stop
162:
163: static __inline void
164: ahc_timer_reset(ahc_timer_t *timer, u_int usec, ahc_callback_t *func, void *arg)
165: {
166: callout_reset(timer, (usec * hz)/1000000, func, arg);
167: }
168:
169: static __inline void
170: ahc_scb_timer_reset(struct scb *scb, u_int usec)
171: {
172: if (!(scb->xs->xs_control & XS_CTL_POLL)) {
173: callout_reset(&scb->xs->xs_callout,
174: (usec * hz)/1000000, ahc_timeout, scb);
175: }
176: }
177:
178: /*************************** Device Access ************************************/
179: #define ahc_inb(ahc, port) \
180: bus_space_read_1((ahc)->tag, (ahc)->bsh, port)
181:
182: #define ahc_outb(ahc, port, value) \
183: bus_space_write_1((ahc)->tag, (ahc)->bsh, port, value)
184:
185: #define ahc_outsb(ahc, port, valp, count) \
186: bus_space_write_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count)
187:
188: #define ahc_insb(ahc, port, valp, count) \
189: bus_space_read_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count)
190:
191: static __inline void ahc_flush_device_writes(struct ahc_softc *);
192:
193: static __inline void
194: ahc_flush_device_writes(struct ahc_softc *ahc)
195: {
196: /* XXX Is this sufficient for all architectures??? */
197: ahc_inb(ahc, INTSTAT);
198: }
199:
200: /**************************** Locking Primitives ******************************/
201:
202: /****************************** OS Primitives *********************************/
203:
204: /************************** Transaction Operations ****************************/
205: static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
206: static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
207: static __inline uint32_t ahc_get_transaction_status(struct scb *);
208: static __inline uint32_t ahc_get_scsi_status(struct scb *);
209: static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
210: static __inline u_long ahc_get_transfer_length(struct scb *);
211: static __inline int ahc_get_transfer_dir(struct scb *);
212: static __inline void ahc_set_residual(struct scb *, u_long);
213: static __inline void ahc_set_sense_residual(struct scb *, u_long);
214: static __inline u_long ahc_get_residual(struct scb *);
215: static __inline int ahc_perform_autosense(struct scb *);
216: static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
217: struct scb *);
218: static __inline void ahc_freeze_scb(struct scb *);
219: static __inline void ahc_platform_freeze_devq(struct ahc_softc *, struct scb *);
220: static __inline int ahc_platform_abort_scbs(struct ahc_softc *, int, char,
221: int, u_int, role_t, uint32_t);
222:
223: static __inline
224: void ahc_set_transaction_status(struct scb *scb, uint32_t status)
225: {
226: scb->xs->error = status;
227: }
228:
229: static __inline
230: void ahc_set_scsi_status(struct scb *scb, uint32_t status)
231: {
232: scb->xs->status = status;
233: }
234:
235: static __inline
236: uint32_t ahc_get_transaction_status(struct scb *scb)
237: {
238: if (scb->xs->flags & ITSDONE)
239: return CAM_REQ_CMP;
240: else
241: return scb->xs->error;
242: }
243:
244: static __inline
245: uint32_t ahc_get_scsi_status(struct scb *scb)
246: {
247: return (scb->xs->status);
248: }
249:
250: static __inline
251: void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
252: {
253: }
254:
255: static __inline
256: u_long ahc_get_transfer_length(struct scb *scb)
257: {
258: return (scb->xs->datalen);
259: }
260:
261: static __inline
262: int ahc_get_transfer_dir(struct scb *scb)
263: {
264: return (scb->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT));
265: }
266:
267: static __inline
268: void ahc_set_residual(struct scb *scb, u_long resid)
269: {
270: scb->xs->resid = resid;
271: }
272:
273: static __inline
274: void ahc_set_sense_residual(struct scb *scb, u_long resid)
275: {
276: scb->xs->resid = resid;
277: }
278:
279: static __inline
280: u_long ahc_get_residual(struct scb *scb)
281: {
282: return (scb->xs->resid);
283: }
284:
285: static __inline
286: int ahc_perform_autosense(struct scb *scb)
287: {
288: /* Return true for OpenBSD */
289: return (1);
290: }
291:
292: static __inline uint32_t
293: ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
294: {
295: return (sizeof(struct scsi_sense_data));
296: }
297:
298: static __inline void
299: ahc_freeze_scb(struct scb *scb)
300: {
301: }
302:
303: static __inline void
304: ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb)
305: {
306: }
307:
308: static __inline int
309: ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
310: char channel, int lun, u_int tag,
311: role_t role, uint32_t status)
312: {
313: return (0);
314: }
315:
316: static __inline void
317: ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
318: {
319: int s;
320:
321: s = splbio();
322:
323: if ((ahc->flags & AHC_RESOURCE_SHORTAGE) != 0) {
324: ahc->flags &= ~AHC_RESOURCE_SHORTAGE;
325: }
326:
327: timeout_del(&scb->xs->stimeout);
328:
329: splx(s);
330: }
331:
332: /********************************** PCI ***************************************/
333: #ifdef AHC_PCI_CONFIG
334: static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t, int, int);
335: static __inline void ahc_pci_write_config(ahc_dev_softc_t, int, uint32_t,
336: int);
337: static __inline int ahc_get_pci_function(ahc_dev_softc_t);
338: static __inline int ahc_get_pci_slot(ahc_dev_softc_t);
339: static __inline int ahc_get_pci_bus(ahc_dev_softc_t);
340:
341: int ahc_pci_map_registers(struct ahc_softc *);
342: int ahc_pci_map_int(struct ahc_softc *);
343:
344: static __inline uint32_t
345: ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
346: {
347: return (pci_conf_read(pci->pa_pc, pci->pa_tag, reg));
348: }
349:
350: static __inline void
351: ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
352: {
353: pci_conf_write(pci->pa_pc, pci->pa_tag, reg, value);
354: }
355:
356: static __inline int
357: ahc_get_pci_function(ahc_dev_softc_t pci)
358: {
359: return (pci->pa_function);
360: }
361:
362: static __inline int
363: ahc_get_pci_slot(ahc_dev_softc_t pci)
364: {
365: return (pci->pa_device);
366: }
367:
368: static __inline int
369: ahc_get_pci_bus(ahc_dev_softc_t pci)
370: {
371: return (pci->pa_bus);
372: }
373:
374: typedef enum
375: {
376: AHC_POWER_STATE_D0,
377: AHC_POWER_STATE_D1,
378: AHC_POWER_STATE_D2,
379: AHC_POWER_STATE_D3
380: } ahc_power_state;
381:
382: void ahc_power_state_change(struct ahc_softc *, ahc_power_state);
383: #endif
384: /******************************** VL/EISA *************************************/
385: int aic7770_map_registers(struct ahc_softc *, u_int);
386: int aic7770_map_int(struct ahc_softc *, int);
387:
388: /********************************* Debug **************************************/
389: static __inline void ahc_print_path(struct ahc_softc *, struct scb *);
390: static __inline void ahc_platform_dump_card_state(struct ahc_softc *);
391:
392: static __inline void
393: ahc_print_path(struct ahc_softc *ahc, struct scb *scb)
394: {
395: sc_print_addr(scb->xs->sc_link);
396: }
397:
398: static __inline void
399: ahc_platform_dump_card_state(struct ahc_softc *ahc)
400: {
401: /* Nothing to do here for OpenBSD */
402: printf("FEATURES = 0x%x, FLAGS = 0x%x, CHIP = 0x%x BUGS =0x%x\n",
403: ahc->features, ahc->flags, ahc->chip, ahc->bugs);
404: }
405: /**************************** Transfer Settings *******************************/
406: void ahc_notify_xfer_settings_change(struct ahc_softc *,
407: struct ahc_devinfo *);
408: void ahc_platform_set_tags(struct ahc_softc *, struct ahc_devinfo *, int);
409:
410: /************************* Initialization/Teardown ****************************/
411: int ahc_platform_alloc(struct ahc_softc *, void *);
412: void ahc_platform_free(struct ahc_softc *);
413: int ahc_map_int(struct ahc_softc *);
414: int ahc_attach(struct ahc_softc *);
415: int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *);
416: int ahc_detach(struct device *, int);
417:
418: /****************************** Interrupts ************************************/
419: int ahc_platform_intr(void *);
420: static __inline void ahc_platform_flushwork(struct ahc_softc *);
421: static __inline void
422: ahc_platform_flushwork(struct ahc_softc *ahc)
423: {
424: }
425:
426: /************************ Misc Function Declarations **************************/
427: void ahc_done(struct ahc_softc *, struct scb *);
428: void ahc_send_async(struct ahc_softc *, char, u_int, u_int, ac_code,
429: void *);
430:
431: #endif /* _AIC7XXX_OPENBSD_H_ */
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