2 * FreeBSD platform specific driver option settings, data structures,
3 * function declarations and includes.
5 * Copyright (c) 1994-2001 Justin T. Gibbs.
6 * Copyright (c) 2001-2002 Adaptec Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * Alternatively, this software may be distributed under the terms of the
19 * GNU Public License ("GPL").
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.h#23 $
35 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.h,v 1.18 2005/12/06 11:19:36 ru Exp $
36 * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_osm.h,v 1.14 2008/04/06 19:03:18 pavalos Exp $
39 #ifndef _AIC79XX_FREEBSD_H_
40 #define _AIC79XX_FREEBSD_H_
42 #include <opt_aic79xx.h> /* for config options */
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/bus.h> /* For device_t */
47 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
48 #include <sys/endian.h>
50 #include <sys/eventhandler.h>
51 #include <sys/kernel.h>
52 #include <sys/malloc.h>
53 #include <sys/queue.h>
55 #include <sys/thread2.h>
56 #include <sys/mplock2.h>
58 #define AIC_PCI_CONFIG 1
59 #include <machine/endian.h>
60 #include <machine/clock.h>
64 #include <bus/pci/pcireg.h>
65 #include <bus/pci/pcivar.h>
67 #include <bus/cam/cam.h>
68 #include <bus/cam/cam_ccb.h>
69 #include <bus/cam/cam_debug.h>
70 #include <bus/cam/cam_sim.h>
71 #include <bus/cam/cam_xpt_sim.h>
73 #include <bus/cam/scsi/scsi_all.h>
74 #include <bus/cam/scsi/scsi_message.h>
75 #include <bus/cam/scsi/scsi_iu.h>
77 /****************************** Platform Macros *******************************/
78 #define SIM_IS_SCSIBUS_B(ahd, sim) \
80 #define SIM_CHANNEL(ahd, sim) \
82 #define SIM_SCSI_ID(ahd, sim) \
84 #define SIM_PATH(ahd, sim) \
85 (ahd->platform_data->path)
86 #define BUILD_SCSIID(ahd, sim, target_id, our_id) \
87 ((((target_id) << TID_SHIFT) & TID) | (our_id))
90 #define SCB_GET_SIM(ahd, scb) \
91 ((ahd)->platform_data->sim)
94 #define offsetof(type, member) ((size_t)(&((type *)0)->member))
97 /************************ Tunable Driver Parameters **************************/
99 * The number of dma segments supported. The sequencer can handle any number
100 * of physically contiguous S/G entrys. To reduce the driver's memory
101 * consumption, we limit the number supported to be sufficient to handle
102 * the largest mapping supported by the kernel, MAXPHYS. Assuming the
103 * transfer is as fragmented as possible and unaligned, this turns out to
104 * be the number of paged sized transfers in MAXPHYS plus an extra element
105 * to handle any unaligned residual. The sequencer fetches SG elements
106 * in cacheline sized chucks, so make the number per-transaction an even
107 * multiple of 16 which should align us on even the largest of cacheline
110 #define AHD_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
112 /* This driver supports target mode */
114 #define AHD_TARGET_MODE 1
117 /***************************** Core Includes **********************************/
118 #ifdef AHD_REG_PRETTY_PRINT
119 #define AIC_DEBUG_REGISTERS 1
121 #define AIC_DEBUG_REGISTERS 0
123 #define AIC_CORE_INCLUDE "aic79xx.h"
124 #define AIC_LIB_PREFIX ahd
125 #define AIC_CONST_PREFIX AHD
126 #include "aic_osm_lib.h"
128 /************************** Softc/SCB Platform Data ***************************/
129 struct ahd_platform_data {
131 * Hooks into the XPT.
134 struct cam_path *path;
136 int regs_res_type[2];
139 struct resource *regs[2];
140 struct resource *irq;
143 struct thread *recovery_thread;
147 struct scb_platform_data {
150 /*************************** Device Access ************************************/
151 #define ahd_inb(ahd, port) \
152 bus_space_read_1((ahd)->tags[(port) >> 8], \
153 (ahd)->bshs[(port) >> 8], (port) & 0xFF)
155 #define ahd_outb(ahd, port, value) \
156 bus_space_write_1((ahd)->tags[(port) >> 8], \
157 (ahd)->bshs[(port) >> 8], (port) & 0xFF, value)
159 #define ahd_inw_atomic(ahd, port) \
160 aic_le16toh(bus_space_read_2((ahd)->tags[(port) >> 8], \
161 (ahd)->bshs[(port) >> 8], (port) & 0xFF))
163 #define ahd_outw_atomic(ahd, port, value) \
164 bus_space_write_2((ahd)->tags[(port) >> 8], \
165 (ahd)->bshs[(port) >> 8], \
166 (port & 0xFF), aic_htole16(value))
168 #define ahd_outsb(ahd, port, valp, count) \
169 bus_space_write_multi_1((ahd)->tags[(port) >> 8], \
170 (ahd)->bshs[(port) >> 8], \
171 (port & 0xFF), valp, count)
173 #define ahd_insb(ahd, port, valp, count) \
174 bus_space_read_multi_1((ahd)->tags[(port) >> 8], \
175 (ahd)->bshs[(port) >> 8], \
176 (port & 0xFF), valp, count)
178 static __inline void ahd_flush_device_writes(struct ahd_softc *);
181 ahd_flush_device_writes(struct ahd_softc *ahd)
183 /* XXX Is this sufficient for all architectures??? */
184 ahd_inb(ahd, INTSTAT);
187 /**************************** Locking Primitives ******************************/
188 /* Lock protecting internal data structures */
189 static __inline void ahd_lockinit(struct ahd_softc *);
190 static __inline void ahd_lock(struct ahd_softc *);
191 static __inline void ahd_unlock(struct ahd_softc *);
194 ahd_lockinit(struct ahd_softc *ahd)
196 lockinit(&ahd->platform_data->lock, "ahd_lock", 0, LK_CANRECURSE);
200 ahd_lock(struct ahd_softc *ahd)
202 lockmgr(&ahd->platform_data->lock, LK_EXCLUSIVE);
206 ahd_unlock(struct ahd_softc *ahd)
208 lockmgr(&ahd->platform_data->lock, LK_RELEASE);
211 /********************************** PCI ***************************************/
212 int ahd_pci_map_registers(struct ahd_softc *ahd);
213 int ahd_pci_map_int(struct ahd_softc *ahd);
215 /************************** Transaction Operations ****************************/
216 static __inline void aic_freeze_simq(struct aic_softc*);
217 static __inline void aic_release_simq(struct aic_softc*);
220 aic_freeze_simq(struct aic_softc *aic)
222 xpt_freeze_simq(aic->platform_data->sim, /*count*/1);
226 aic_release_simq(struct aic_softc *aic)
228 xpt_release_simq(aic->platform_data->sim, /*run queue*/TRUE);
231 /********************************* Debug **************************************/
232 static __inline void ahd_print_path(struct ahd_softc *, struct scb *);
233 static __inline void ahd_platform_dump_card_state(struct ahd_softc *ahd);
236 ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
238 xpt_print_path(scb->io_ctx->ccb_h.path);
242 ahd_platform_dump_card_state(struct ahd_softc *ahd)
244 /* Nothing to do here for FreeBSD */
246 /**************************** Transfer Settings *******************************/
247 void ahd_notify_xfer_settings_change(struct ahd_softc *,
248 struct ahd_devinfo *);
249 void ahd_platform_set_tags(struct ahd_softc *, struct ahd_devinfo *,
252 /************************* Initialization/Teardown ****************************/
253 int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
254 void ahd_platform_free(struct ahd_softc *ahd);
255 int ahd_map_int(struct ahd_softc *ahd);
256 int ahd_attach(struct ahd_softc *);
257 int ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd);
258 int ahd_detach(device_t);
259 #define ahd_platform_init(arg)
262 /****************************** Interrupts ************************************/
263 void ahd_platform_intr(void *);
264 static __inline void ahd_platform_flushwork(struct ahd_softc *ahd);
266 ahd_platform_flushwork(struct ahd_softc *ahd)
270 /************************ Misc Function Declarations **************************/
271 void ahd_done(struct ahd_softc *ahd, struct scb *scb);
272 void ahd_send_async(struct ahd_softc *, char /*channel*/,
273 u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
274 #endif /* _AIC79XX_FREEBSD_H_ */