/*- * FreeBSD platform specific driver option settings, data structures, * function declarations and includes. * * Copyright (c) 1994-2001 Justin T. Gibbs. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU Public License ("GPL"). * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.h#18 $ */ #ifndef _AIC7XXX_FREEBSD_H_ #define _AIC7XXX_FREEBSD_H_ #include "opt_aic7xxx.h" /* for config options */ #include #include #include /* For device_t */ #include #include #include #include #include #include #define AIC_PCI_CONFIG 1 #include #include #include #include #include #include #include #include #include #include #include #include #include /*************************** Attachment Bookkeeping ***************************/ extern devclass_t ahc_devclass; /****************************** Platform Macros *******************************/ #define SIM_IS_SCSIBUS_B(ahc, sim) \ ((sim) == ahc->platform_data->sim_b) #define SIM_CHANNEL(ahc, sim) \ (((sim) == ahc->platform_data->sim_b) ? 'B' : 'A') #define SIM_SCSI_ID(ahc, sim) \ (((sim) == ahc->platform_data->sim_b) ? ahc->our_id_b : ahc->our_id) #define SIM_PATH(ahc, sim) \ (((sim) == ahc->platform_data->sim_b) ? ahc->platform_data->path_b \ : ahc->platform_data->path) #define BUILD_SCSIID(ahc, sim, target_id, our_id) \ ((((target_id) << TID_SHIFT) & TID) | (our_id) \ | (SIM_IS_SCSIBUS_B(ahc, sim) ? TWIN_CHNLB : 0)) #define SCB_GET_SIM(ahc, scb) \ (SCB_GET_CHANNEL(ahc, scb) == 'A' ? (ahc)->platform_data->sim \ : (ahc)->platform_data->sim_b) #ifndef offsetof #define offsetof(type, member) ((size_t)(&((type *)0)->member)) #endif /************************ Tunable Driver Parameters **************************/ /* * The number of dma segments supported. The sequencer can handle any number * of physically contiguous S/G entrys. To reduce the driver's memory * consumption, we limit the number supported to be sufficient to handle * the largest mapping supported by the legacy kernel MAXPHYS setting of * 128K. This can be increased once some testing is done. Assuming the * be the number of paged sized transfers in MAXPHYS plus an extra element * to handle any unaligned residual. The sequencer fetches SG elements * in cacheline sized chucks, so make the number per-transaction an even * multiple of 16 which should align us on even the largest of cacheline * boundaries. */ #define AHC_MAXPHYS (128 * 1024) #define AHC_NSEG (roundup(btoc(AHC_MAXPHYS) + 1, 16)) /* This driver supports target mode */ #define AHC_TARGET_MODE 1 /************************** Softc/SCB Platform Data ***************************/ struct ahc_platform_data { /* * Hooks into the XPT. */ struct cam_sim *sim; struct cam_sim *sim_b; struct cam_path *path; struct cam_path *path_b; int regs_res_type; int regs_res_id; int irq_res_type; struct resource *regs; struct resource *irq; void *ih; eventhandler_tag eh; struct proc *recovery_thread; struct mtx mtx; }; struct scb_platform_data { }; /***************************** Core Includes **********************************/ #ifdef AHC_REG_PRETTY_PRINT #define AIC_DEBUG_REGISTERS 1 #else #define AIC_DEBUG_REGISTERS 0 #endif #define AIC_CORE_INCLUDE #define AIC_LIB_PREFIX ahc #define AIC_CONST_PREFIX AHC #include /*************************** Device Access ************************************/ #define ahc_inb(ahc, port) \ bus_space_read_1((ahc)->tag, (ahc)->bsh, port) #define ahc_outb(ahc, port, value) \ bus_space_write_1((ahc)->tag, (ahc)->bsh, port, value) #define ahc_outsb(ahc, port, valp, count) \ bus_space_write_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count) #define ahc_insb(ahc, port, valp, count) \ bus_space_read_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count) static __inline void ahc_flush_device_writes(struct ahc_softc *); static __inline void ahc_flush_device_writes(struct ahc_softc *ahc) { /* XXX Is this sufficient for all architectures??? */ ahc_inb(ahc, INTSTAT); } /**************************** Locking Primitives ******************************/ /* Lock protecting internal data structures */ static __inline void ahc_lockinit(struct ahc_softc *); static __inline void ahc_lock(struct ahc_softc *); static __inline void ahc_unlock(struct ahc_softc *); static __inline void ahc_lockinit(struct ahc_softc *ahc) { mtx_init(&ahc->platform_data->mtx, "ahc_lock", NULL, MTX_DEF); } static __inline void ahc_lock(struct ahc_softc *ahc) { mtx_lock(&ahc->platform_data->mtx); } static __inline void ahc_unlock(struct ahc_softc *ahc) { mtx_unlock(&ahc->platform_data->mtx); } /************************* Initialization/Teardown ****************************/ int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg); void ahc_platform_free(struct ahc_softc *ahc); int ahc_map_int(struct ahc_softc *ahc); int ahc_attach(struct ahc_softc *); int ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc); int ahc_detach(device_t); /********************************** PCI ***************************************/ #ifdef AIC_PCI_CONFIG int ahc_pci_map_registers(struct ahc_softc *ahc); #define ahc_pci_map_int ahc_map_int #endif /*AIC_PCI_CONFIG*/ /******************************** VL/EISA/ISA *********************************/ int aic7770_map_registers(struct ahc_softc *ahc, u_int port); static __inline int aic7770_map_int(struct ahc_softc *, int); static __inline int aic7770_map_int(struct ahc_softc *ahc, int irq) { /* * The IRQ is unused in the FreeBSD * implementation since the ISA attachment * registers the IRQ with newbus before * the core is called. */ return ahc_map_int(ahc); } /********************************* Debug **************************************/ static __inline void ahc_print_path(struct ahc_softc *, struct scb *); static __inline void ahc_platform_dump_card_state(struct ahc_softc *ahc); static __inline void ahc_print_path(struct ahc_softc *ahc, struct scb *scb) { xpt_print_path(scb->io_ctx->ccb_h.path); } static __inline void ahc_platform_dump_card_state(struct ahc_softc *ahc) { /* Nothing to do here for FreeBSD */ } /**************************** Transfer Settings *******************************/ void ahc_notify_xfer_settings_change(struct ahc_softc *, struct ahc_devinfo *); void ahc_platform_set_tags(struct ahc_softc *, struct ahc_devinfo *, int /*enable*/); /****************************** Interrupts ************************************/ void ahc_platform_intr(void *); static __inline void ahc_platform_flushwork(struct ahc_softc *ahc); static __inline void ahc_platform_flushwork(struct ahc_softc *ahc) { } /************************ Misc Function Declarations **************************/ void ahc_done(struct ahc_softc *ahc, struct scb *scb); void ahc_send_async(struct ahc_softc *, char /*channel*/, u_int /*target*/, u_int /*lun*/, ac_code, void *arg); #endif /* _AIC7XXX_FREEBSD_H_ */