The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aic7xxx_osm.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * FreeBSD platform specific driver option settings, data structures,
    3  * function declarations and includes.
    4  *
    5  * Copyright (c) 1994-2001 Justin T. Gibbs.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   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.
   16  *
   17  * Alternatively, this software may be distributed under the terms of the
   18  * GNU Public License ("GPL").
   19  *
   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
   30  * SUCH DAMAGE.
   31  *
   32  * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.h#18 $
   33  *
   34  * $FreeBSD: src/sys/dev/aic7xxx/aic7xxx_osm.h,v 1.27.2.1 2005/01/30 00:59:26 imp Exp $
   35  */
   36 
   37 #ifndef _AIC7XXX_FREEBSD_H_
   38 #define _AIC7XXX_FREEBSD_H_
   39 
   40 #include <opt_aic7xxx.h>        /* for config options */
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/bus.h>            /* For device_t */
   45 #if __FreeBSD_version >= 500000
   46 #include <sys/endian.h>
   47 #endif
   48 #include <sys/eventhandler.h>
   49 #include <sys/kernel.h>
   50 #include <sys/malloc.h>
   51 #include <sys/module.h>
   52 #include <sys/queue.h>
   53 
   54 #if __FreeBSD_version < 500000
   55 #include <pci.h>
   56 #else
   57 #define NPCI 1
   58 #endif
   59 
   60 #if NPCI > 0
   61 #define AIC_PCI_CONFIG 1
   62 #include <machine/bus_memio.h>
   63 #endif
   64 #include <machine/bus_pio.h>
   65 #include <machine/bus.h>
   66 #include <machine/endian.h>
   67 #include <machine/clock.h>
   68 #include <machine/resource.h>
   69 
   70 #include <sys/rman.h>
   71 
   72 #if NPCI > 0
   73 #if __FreeBSD_version >= 500000
   74 #include <dev/pci/pcireg.h>
   75 #include <dev/pci/pcivar.h>
   76 #else
   77 #include <pci/pcireg.h>
   78 #include <pci/pcivar.h>
   79 #endif
   80 #endif
   81 
   82 #include <cam/cam.h>
   83 #include <cam/cam_ccb.h>
   84 #include <cam/cam_debug.h>
   85 #include <cam/cam_sim.h>
   86 #include <cam/cam_xpt_sim.h>
   87 
   88 #include <cam/scsi/scsi_all.h>
   89 #include <cam/scsi/scsi_message.h>
   90 
   91 #ifdef CAM_NEW_TRAN_CODE
   92 #define AHC_NEW_TRAN_SETTINGS
   93 #endif /* CAM_NEW_TRAN_CODE */
   94 
   95 /*************************** Attachment Bookkeeping ***************************/
   96 extern devclass_t ahc_devclass;
   97 
   98 /****************************** Platform Macros *******************************/
   99 #define SIM_IS_SCSIBUS_B(ahc, sim)      \
  100         ((sim) == ahc->platform_data->sim_b)
  101 #define SIM_CHANNEL(ahc, sim)   \
  102         (((sim) == ahc->platform_data->sim_b) ? 'B' : 'A')
  103 #define SIM_SCSI_ID(ahc, sim)   \
  104         (((sim) == ahc->platform_data->sim_b) ? ahc->our_id_b : ahc->our_id)
  105 #define SIM_PATH(ahc, sim)      \
  106         (((sim) == ahc->platform_data->sim_b) ? ahc->platform_data->path_b \
  107                                               : ahc->platform_data->path)
  108 #define BUILD_SCSIID(ahc, sim, target_id, our_id) \
  109         ((((target_id) << TID_SHIFT) & TID) | (our_id) \
  110         | (SIM_IS_SCSIBUS_B(ahc, sim) ? TWIN_CHNLB : 0))
  111 
  112 #define SCB_GET_SIM(ahc, scb) \
  113         (SCB_GET_CHANNEL(ahc, scb) == 'A' ? (ahc)->platform_data->sim \
  114                                           : (ahc)->platform_data->sim_b)
  115 
  116 #ifndef offsetof
  117 #define offsetof(type, member)  ((size_t)(&((type *)0)->member))
  118 #endif
  119 
  120 /************************ Tunable Driver Parameters  **************************/
  121 /*
  122  * The number of dma segments supported.  The sequencer can handle any number
  123  * of physically contiguous S/G entrys.  To reduce the driver's memory
  124  * consumption, we limit the number supported to be sufficient to handle
  125  * the largest mapping supported by the kernel, MAXPHYS.  Assuming the
  126  * transfer is as fragmented as possible and unaligned, this turns out to
  127  * be the number of paged sized transfers in MAXPHYS plus an extra element
  128  * to handle any unaligned residual.  The sequencer fetches SG elements
  129  * in cacheline sized chucks, so make the number per-transaction an even
  130  * multiple of 16 which should align us on even the largest of cacheline
  131  * boundaries. 
  132  */
  133 #define AHC_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
  134 
  135 /* This driver supports target mode */
  136 #define AHC_TARGET_MODE 1
  137 
  138 /************************** Softc/SCB Platform Data ***************************/
  139 struct ahc_platform_data {
  140         /*
  141          * Hooks into the XPT.
  142          */
  143         struct  cam_sim         *sim;
  144         struct  cam_sim         *sim_b;
  145         struct  cam_path        *path;
  146         struct  cam_path        *path_b;
  147 
  148         int                      regs_res_type;
  149         int                      regs_res_id;
  150         int                      irq_res_type;
  151         struct resource         *regs;
  152         struct resource         *irq;
  153         void                    *ih;
  154         eventhandler_tag         eh;
  155         struct proc             *recovery_thread;
  156 };
  157 
  158 struct scb_platform_data {
  159 };
  160 
  161 /***************************** Core Includes **********************************/
  162 #if AHC_REG_PRETTY_PRINT
  163 #define AIC_DEBUG_REGISTERS 1
  164 #else
  165 #define AIC_DEBUG_REGISTERS 0
  166 #endif
  167 #define AIC_CORE_INCLUDE <dev/aic7xxx/aic7xxx.h>
  168 #define AIC_LIB_PREFIX ahc
  169 #define AIC_CONST_PREFIX AHC
  170 #include <dev/aic7xxx/aic_osm_lib.h>
  171 
  172 /*************************** Device Access ************************************/
  173 #define ahc_inb(ahc, port)                              \
  174         bus_space_read_1((ahc)->tag, (ahc)->bsh, port)
  175 
  176 #define ahc_outb(ahc, port, value)                      \
  177         bus_space_write_1((ahc)->tag, (ahc)->bsh, port, value)
  178 
  179 #define ahc_outsb(ahc, port, valp, count)               \
  180         bus_space_write_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count)
  181 
  182 #define ahc_insb(ahc, port, valp, count)                \
  183         bus_space_read_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count)
  184 
  185 static __inline void ahc_flush_device_writes(struct ahc_softc *);
  186 
  187 static __inline void
  188 ahc_flush_device_writes(struct ahc_softc *ahc)
  189 {
  190         /* XXX Is this sufficient for all architectures??? */
  191         ahc_inb(ahc, INTSTAT);
  192 }
  193 
  194 /**************************** Locking Primitives ******************************/
  195 /* Lock protecting internal data structures */
  196 static __inline void ahc_lockinit(struct ahc_softc *);
  197 static __inline void ahc_lock(struct ahc_softc *, unsigned long *flags);
  198 static __inline void ahc_unlock(struct ahc_softc *, unsigned long *flags);
  199 
  200 /* Lock held during command compeletion to the upper layer */
  201 static __inline void ahc_done_lockinit(struct ahc_softc *);
  202 static __inline void ahc_done_lock(struct ahc_softc *, unsigned long *flags);
  203 static __inline void ahc_done_unlock(struct ahc_softc *, unsigned long *flags);
  204 
  205 /* Lock held during ahc_list manipulation and ahc softc frees */
  206 static __inline void ahc_list_lockinit(void);
  207 static __inline void ahc_list_lock(unsigned long *flags);
  208 static __inline void ahc_list_unlock(unsigned long *flags);
  209 
  210 static __inline void
  211 ahc_lockinit(struct ahc_softc *ahc)
  212 {
  213 }
  214 
  215 static __inline void
  216 ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
  217 {
  218         *flags = splcam();
  219 }
  220 
  221 static __inline void
  222 ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
  223 {
  224         splx(*flags);
  225 }
  226 
  227 /* Lock held during command compeletion to the upper layer */
  228 static __inline void
  229 ahc_done_lockinit(struct ahc_softc *ahc)
  230 {
  231 }
  232 
  233 static __inline void
  234 ahc_done_lock(struct ahc_softc *ahc, unsigned long *flags)
  235 {
  236 }
  237 
  238 static __inline void
  239 ahc_done_unlock(struct ahc_softc *ahc, unsigned long *flags)
  240 {
  241 }
  242 
  243 /* Lock held during ahc_list manipulation and ahc softc frees */
  244 static __inline void
  245 ahc_list_lockinit(void)
  246 {
  247 }
  248 
  249 static __inline void
  250 ahc_list_lock(unsigned long *flags)
  251 {
  252 }
  253 
  254 static __inline void
  255 ahc_list_unlock(unsigned long *flags)
  256 {
  257 }
  258 
  259 /************************* Initialization/Teardown ****************************/
  260 int       ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
  261 void      ahc_platform_free(struct ahc_softc *ahc);
  262 int       ahc_map_int(struct ahc_softc *ahc);
  263 int       ahc_attach(struct ahc_softc *);
  264 int       ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc);
  265 int       ahc_detach(device_t);
  266 
  267 /********************************** PCI ***************************************/
  268 #ifdef AIC_PCI_CONFIG
  269 int ahc_pci_map_registers(struct ahc_softc *ahc);
  270 #define ahc_pci_map_int ahc_map_int
  271 #endif /*AIC_PCI_CONFIG*/
  272 
  273 /******************************** VL/EISA *************************************/
  274 int aic7770_map_registers(struct ahc_softc *ahc, u_int port);
  275 static __inline int aic7770_map_int(struct ahc_softc *, int);
  276 
  277 static __inline int
  278 aic7770_map_int(struct ahc_softc *ahc, int irq)
  279 {
  280         /*
  281          * The IRQ is unused in the FreeBSD
  282          * implementation since the EISA and
  283          * ISA attachments register the IRQ
  284          * with newbus before the core is called.
  285          */
  286         return ahc_map_int(ahc);
  287 }
  288 
  289 /********************************* Debug **************************************/
  290 static __inline void    ahc_print_path(struct ahc_softc *, struct scb *);
  291 static __inline void    ahc_platform_dump_card_state(struct ahc_softc *ahc);
  292 
  293 static __inline void
  294 ahc_print_path(struct ahc_softc *ahc, struct scb *scb)
  295 {
  296         xpt_print_path(scb->io_ctx->ccb_h.path);
  297 }
  298 
  299 static __inline void
  300 ahc_platform_dump_card_state(struct ahc_softc *ahc)
  301 {
  302         /* Nothing to do here for FreeBSD */
  303 }
  304 /**************************** Transfer Settings *******************************/
  305 void      ahc_notify_xfer_settings_change(struct ahc_softc *,
  306                                           struct ahc_devinfo *);
  307 void      ahc_platform_set_tags(struct ahc_softc *, struct ahc_devinfo *,
  308                                 int /*enable*/);
  309 
  310 /****************************** Interrupts ************************************/
  311 void                    ahc_platform_intr(void *);
  312 static __inline void    ahc_platform_flushwork(struct ahc_softc *ahc);
  313 static __inline void
  314 ahc_platform_flushwork(struct ahc_softc *ahc)
  315 {
  316 }
  317 
  318 /************************ Misc Function Declarations **************************/
  319 void      ahc_done(struct ahc_softc *ahc, struct scb *scb);
  320 void      ahc_send_async(struct ahc_softc *, char /*channel*/,
  321                          u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
  322 #endif  /* _AIC7XXX_FREEBSD_H_ */

Cache object: 3143d03241940739563fe29d4bbfda17


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.