/* $OpenBSD: aic7xxx_openbsd.h,v 1.23 2012/02/12 14:30:51 deraadt Exp $ */ /* $NetBSD: aic7xxx_osm.h,v 1.7 2003/11/02 11:07:44 wiz Exp $ */ /* * OpenBSD platform specific driver option settings, data structures, * function declarations and includes. * * Copyright (c) 1994-2001 Justin T. Gibbs. * Copyright (c) 2001-2002 Steve Murphree, Jr. * 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(s) 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. * * //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.h#14 $ * * $FreeBSD: /repoman/r/ncvs/src/sys/dev/aic7xxx/aic7xxx_osm.h,v 1.20 2002/12/04 22:51:29 scottl Exp $ */ /* * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. - April 2003 */ #ifndef _AIC7XXX_OPENBSD_H_ #define _AIC7XXX_OPENBSD_H_ #include "pci.h" /* for config options */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CAM_NEW_TRAN_CODE #define AHC_NEW_TRAN_SETTINGS #endif /* CAM_NEW_TRAN_CODE */ #if NPCI > 0 #define AHC_PCI_CONFIG 1 #endif #if 0 #define AHC_DEBUG AHC_SHOW_SENSE | AHC_SHOW_MISC | AHC_SHOW_CMDS #endif #ifdef DEBUG #define bootverbose 1 #else #define bootverbose 0 #endif /****************************** Platform Macros *******************************/ #define SCSI_IS_SCSIBUS_B(ahc, sc_link) \ ((sc_link)->scsibus == (ahc)->sc_channel_b.scsibus) #define SCSI_SCSI_ID(ahc, sc_link) \ (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? ahc->our_id_b : ahc->our_id) #define SCSI_CHANNEL(ahc, sc_link) \ (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? 'B' : 'A') #define BUILD_SCSIID(ahc, sc_link, target_id, our_id) \ ((((target_id) << TID_SHIFT) & TID) | (our_id) \ | (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? TWIN_CHNLB : 0)) #ifndef offsetof #define offsetof(type, member) ((size_t)(&((type *)0)->member)) #endif /************************* Forward Declarations *******************************/ typedef struct pci_attach_args * ahc_dev_softc_t; /***************************** Bus Space/DMA **********************************/ /* XXX Need to update Bus DMA for partial map syncs */ #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) \ bus_dmamap_sync(dma_tag, dmamap, offset, len, op) /************************ Tunable Driver Parameters **************************/ /* * The number of DMA segments supported. The sequencer can handle any number * of physically contiguous S/G entries. To reduce the driver's memory * consumption, we limit the number supported to be sufficient to handle * the largest mapping supported by the kernel, MAXPHYS. Assuming the * transfer is as fragmented as possible and unaligned, this turns out to * 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_NSEG (roundup(atop(MAXPHYS) + 1, 16)) /* This driver supports target mode */ //#define AHC_TARGET_MODE 1 #include /************************** Softc/SCB Platform Data ***************************/ struct ahc_platform_data { }; struct scb_platform_data { }; /* * Some ISA devices (e.g. on a VLB) can perform 32-bit DMA. This * flag is passed to bus_dmamap_create() to indicate that fact. */ #ifndef ISABUS_DMA_32BIT #define ISABUS_DMA_32BIT BUS_DMA_BUS1 #endif /************************** Timer DataStructures ******************************/ typedef struct timeout ahc_timer_t; /***************************** Core Includes **********************************/ #if AHC_REG_PRETTY_PRINT #define AIC_DEBUG_REGISTERS 1 #else #define AIC_DEBUG_REGISTERS 0 #endif /***************************** Timer Facilities *******************************/ void ahc_timeout(void*); #define ahc_timer_init callout_init #define ahc_timer_stop callout_stop static __inline void ahc_timer_reset(ahc_timer_t *timer, u_int usec, ahc_callback_t *func, void *arg) { callout_reset(timer, (usec * hz)/1000000, func, arg); } static __inline void ahc_scb_timer_reset(struct scb *scb, u_int usec) { if (!(scb->xs->xs_control & XS_CTL_POLL)) { callout_reset(&scb->xs->xs_callout, (usec * hz)/1000000, ahc_timeout, scb); } } /*************************** 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) { bus_space_barrier(ahc->tag, ahc->bsh, 0, 0x100, BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); ahc_inb(ahc, INTSTAT); } /**************************** Locking Primitives ******************************/ /****************************** OS Primitives *********************************/ /************************** Transaction Operations ****************************/ static __inline void ahc_set_transaction_status(struct scb *, uint32_t); static __inline void ahc_set_scsi_status(struct scb *, uint32_t); static __inline uint32_t ahc_get_transaction_status(struct scb *); static __inline uint32_t ahc_get_scsi_status(struct scb *); static __inline void ahc_set_transaction_tag(struct scb *, int, u_int); static __inline u_long ahc_get_transfer_length(struct scb *); static __inline int ahc_get_transfer_dir(struct scb *); static __inline void ahc_set_residual(struct scb *, u_long); static __inline void ahc_set_sense_residual(struct scb *, u_long); static __inline u_long ahc_get_residual(struct scb *); static __inline int ahc_perform_autosense(struct scb *); static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, struct scb *); static __inline void ahc_freeze_scb(struct scb *); static __inline void ahc_platform_freeze_devq(struct ahc_softc *, struct scb *); static __inline int ahc_platform_abort_scbs(struct ahc_softc *, int, char, int, u_int, role_t, uint32_t); static __inline void ahc_set_transaction_status(struct scb *scb, uint32_t status) { scb->xs->error = status; } static __inline void ahc_set_scsi_status(struct scb *scb, uint32_t status) { scb->xs->status = status; } static __inline uint32_t ahc_get_transaction_status(struct scb *scb) { if (scb->xs->flags & ITSDONE) return CAM_REQ_CMP; else return scb->xs->error; } static __inline uint32_t ahc_get_scsi_status(struct scb *scb) { return (scb->xs->status); } static __inline void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) { } static __inline u_long ahc_get_transfer_length(struct scb *scb) { return (scb->xs->datalen); } static __inline int ahc_get_transfer_dir(struct scb *scb) { return (scb->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT)); } static __inline void ahc_set_residual(struct scb *scb, u_long resid) { scb->xs->resid = resid; } static __inline void ahc_set_sense_residual(struct scb *scb, u_long resid) { scb->xs->resid = resid; } static __inline u_long ahc_get_residual(struct scb *scb) { return (scb->xs->resid); } static __inline int ahc_perform_autosense(struct scb *scb) { /* Return true for OpenBSD */ return (1); } static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) { return (sizeof(struct scsi_sense_data)); } static __inline void ahc_freeze_scb(struct scb *scb) { } static __inline void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb) { } static __inline int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, char channel, int lun, u_int tag, role_t role, uint32_t status) { return (0); } static __inline void ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) { int s; s = splbio(); if ((ahc->flags & AHC_RESOURCE_SHORTAGE) != 0) { ahc->flags &= ~AHC_RESOURCE_SHORTAGE; } timeout_del(&scb->xs->stimeout); splx(s); } /********************************** PCI ***************************************/ #ifdef AHC_PCI_CONFIG static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t, int, int); static __inline void ahc_pci_write_config(ahc_dev_softc_t, int, uint32_t, int); static __inline int ahc_get_pci_function(ahc_dev_softc_t); static __inline int ahc_get_pci_slot(ahc_dev_softc_t); static __inline int ahc_get_pci_bus(ahc_dev_softc_t); int ahc_pci_map_registers(struct ahc_softc *); int ahc_pci_map_int(struct ahc_softc *); static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width) { return (pci_conf_read(pci->pa_pc, pci->pa_tag, reg)); } static __inline void ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width) { pci_conf_write(pci->pa_pc, pci->pa_tag, reg, value); } static __inline int ahc_get_pci_function(ahc_dev_softc_t pci) { return (pci->pa_function); } static __inline int ahc_get_pci_slot(ahc_dev_softc_t pci) { return (pci->pa_device); } static __inline int ahc_get_pci_bus(ahc_dev_softc_t pci) { return (pci->pa_bus); } typedef enum { AHC_POWER_STATE_D0, AHC_POWER_STATE_D1, AHC_POWER_STATE_D2, AHC_POWER_STATE_D3 } ahc_power_state; void ahc_power_state_change(struct ahc_softc *, ahc_power_state); #endif /******************************** VL/EISA *************************************/ int aic7770_map_registers(struct ahc_softc *, u_int); int aic7770_map_int(struct ahc_softc *, int); /********************************* Debug **************************************/ static __inline void ahc_print_path(struct ahc_softc *, struct scb *); static __inline void ahc_platform_dump_card_state(struct ahc_softc *); static __inline void ahc_print_path(struct ahc_softc *ahc, struct scb *scb) { sc_print_addr(scb->xs->sc_link); } static __inline void ahc_platform_dump_card_state(struct ahc_softc *ahc) { /* Nothing to do here for OpenBSD */ printf("FEATURES = 0x%x, FLAGS = 0x%x, CHIP = 0x%x BUGS =0x%x\n", ahc->features, ahc->flags, ahc->chip, ahc->bugs); } /**************************** 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); /************************* Initialization/Teardown ****************************/ int ahc_platform_alloc(struct ahc_softc *, void *); void ahc_platform_free(struct ahc_softc *); int ahc_map_int(struct ahc_softc *); int ahc_attach(struct ahc_softc *); int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *); int ahc_detach(struct device *, int); /****************************** Interrupts ************************************/ int ahc_platform_intr(void *); static __inline void ahc_platform_flushwork(struct ahc_softc *); static __inline void ahc_platform_flushwork(struct ahc_softc *ahc) { } /************************ Misc Function Declarations **************************/ void ahc_done(struct ahc_softc *, struct scb *); void ahc_send_async(struct ahc_softc *, char, u_int, u_int, ac_code, void *); #endif /* _AIC7XXX_OPENBSD_H_ */