Annotation of sys/dev/ic/aic79xx_openbsd.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: aic79xx_openbsd.h,v 1.16 2005/12/10 11:45:43 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2004 Milos Urbanek, Kenneth R. Westerback & Marco Peereboom
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
! 17: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 19: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
! 20: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 26: * SUCH DAMAGE.
! 27: *
! 28: */
! 29:
! 30: /*
! 31: * FreeBSD platform specific driver option settings, data structures,
! 32: * function declarations and includes.
! 33: *
! 34: * Copyright (c) 1994-2001 Justin T. Gibbs.
! 35: * Copyright (c) 2001-2002 Adaptec Inc.
! 36: * All rights reserved.
! 37: *
! 38: * Redistribution and use in source and binary forms, with or without
! 39: * modification, are permitted provided that the following conditions
! 40: * are met:
! 41: * 1. Redistributions of source code must retain the above copyright
! 42: * notice, this list of conditions, and the following disclaimer,
! 43: * without modification.
! 44: * 2. The name of the author may not be used to endorse or promote products
! 45: * derived from this software without specific prior written permission.
! 46: *
! 47: * Alternatively, this software may be distributed under the terms of the
! 48: * GNU Public License ("GPL").
! 49: *
! 50: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 51: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 52: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 53: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
! 54: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 55: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 56: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 57: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 58: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 59: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 60: * SUCH DAMAGE.
! 61: *
! 62: * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.h,v 1.13 2003/12/17 00:02:09 gibbs Exp $
! 63: *
! 64: */
! 65:
! 66: #ifndef _AIC79XX_OPENBSD_H_
! 67: #define _AIC79XX_OPENBSD_H_
! 68:
! 69: #include "pci.h" /* for config options */
! 70:
! 71: #include <sys/param.h>
! 72: #include <sys/kernel.h>
! 73: #include <sys/systm.h>
! 74: #include <sys/device.h>
! 75: #include <sys/malloc.h>
! 76: #include <sys/buf.h>
! 77: #include <sys/proc.h>
! 78: #include <sys/queue.h>
! 79:
! 80: #define AIC_PCI_CONFIG 1
! 81: #include <dev/pci/pcireg.h>
! 82: #include <dev/pci/pcivar.h>
! 83:
! 84: #include <machine/bus.h>
! 85: #include <machine/intr.h>
! 86:
! 87: #include <scsi/scsi_all.h>
! 88: #include <scsi/scsi_message.h>
! 89: #include <scsi/scsi_debug.h>
! 90: #include <scsi/scsiconf.h>
! 91:
! 92: #include <uvm/uvm_extern.h>
! 93:
! 94: #ifdef DEBUG
! 95: #define bootverbose 1
! 96: #else
! 97: #define bootverbose 0
! 98: #endif
! 99: /****************************** Platform Macros *******************************/
! 100: #define SCSI_IS_SCSIBUS_B(ahd, sc_link) \
! 101: (0)
! 102: #define SCSI_CHANNEL(ahd, sc_link) \
! 103: ('A')
! 104: #define SCSI_SCSI_ID(ahd, sc_link) \
! 105: (ahd->our_id)
! 106: #define BUILD_SCSIID(ahd, sc_link, target_id, our_id) \
! 107: ((((target_id) << TID_SHIFT) & TID) | (our_id))
! 108:
! 109: #ifndef offsetof
! 110: #define offsetof(type, member) ((size_t)(&((type *)0)->member))
! 111: #endif
! 112:
! 113: /************************* Forward Declarations *******************************/
! 114: typedef struct pci_attach_args * ahd_dev_softc_t;
! 115:
! 116: /***************************** Bus Space/DMA **********************************/
! 117:
! 118: /* XXX Need to update Bus DMA for partial map syncs */
! 119: #define ahd_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) \
! 120: bus_dmamap_sync(dma_tag, dmamap, offset, len, op)
! 121:
! 122: /************************ Tunable Driver Parameters **************************/
! 123: /*
! 124: * The number of dma segments supported. The sequencer can handle any number
! 125: * of physically contiguous S/G entries. To reduce the driver's memory
! 126: * consumption, we limit the number supported to be sufficient to handle
! 127: * the largest mapping supported by the kernel, MAXPHYS. Assuming the
! 128: * transfer is as fragmented as possible and unaligned, this turns out to
! 129: * be the number of paged sized transfers in MAXPHYS plus an extra element
! 130: * to handle any unaligned residual. The sequencer fetches SG elements
! 131: * in cacheline sized chucks, so make the number per-transaction an even
! 132: * multiple of 16 which should align us on even the largest of cacheline
! 133: * boundaries.
! 134: */
! 135: #define AHD_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
! 136:
! 137: /* This driver supports target mode */
! 138: // #define AHD_TARGET_MODE 1
! 139:
! 140: /************************** Softc/SCB Platform Data ***************************/
! 141: struct ahd_platform_data {
! 142: };
! 143:
! 144: struct scb_platform_data {
! 145: };
! 146:
! 147: /************************** Timer DataStructures ******************************/
! 148: typedef struct timeout aic_timer_t;
! 149:
! 150: /***************************** Core Includes **********************************/
! 151:
! 152: #if AHD_REG_PRETTY_PRINT
! 153: #define AIC_DEBUG_REGISTERS 1
! 154: #else
! 155: #define AIC_DEBUG_REGISTERS 0
! 156: #endif
! 157: #include <dev/ic/aic79xx.h>
! 158:
! 159: /***************************** Timer Facilities *******************************/
! 160: void ahd_timeout(void*);
! 161: void aic_timer_reset(aic_timer_t *, u_int, ahd_callback_t *, void *);
! 162: void aic_scb_timer_reset(struct scb *, u_int);
! 163:
! 164: #define aic_timer_stop timeout_del
! 165: #define aic_get_timeout(scb) ((scb)->xs->timeout)
! 166: /*************************** Device Access ************************************/
! 167: #define ahd_inb(ahd, port) \
! 168: bus_space_read_1((ahd)->tags[(port) >> 8], \
! 169: (ahd)->bshs[(port) >> 8], (port) & 0xFF)
! 170:
! 171: #define ahd_outb(ahd, port, value) \
! 172: bus_space_write_1((ahd)->tags[(port) >> 8], \
! 173: (ahd)->bshs[(port) >> 8], (port) & 0xFF, value)
! 174:
! 175: #define ahd_inw_atomic(ahd, port) \
! 176: aic_le16toh(bus_space_read_2((ahd)->tags[(port) >> 8], \
! 177: (ahd)->bshs[(port) >> 8], (port) & 0xFF))
! 178:
! 179: #define ahd_outw_atomic(ahd, port, value) \
! 180: bus_space_write_2((ahd)->tags[(port) >> 8], \
! 181: (ahd)->bshs[(port) >> 8], \
! 182: (port & 0xFF), aic_htole16(value))
! 183:
! 184: #define ahd_outsb(ahd, port, valp, count) \
! 185: bus_space_write_multi_1((ahd)->tags[(port) >> 8], \
! 186: (ahd)->bshs[(port) >> 8], \
! 187: (port & 0xFF), valp, count)
! 188:
! 189: #define ahd_insb(ahd, port, valp, count) \
! 190: bus_space_read_multi_1((ahd)->tags[(port) >> 8], \
! 191: (ahd)->bshs[(port) >> 8], \
! 192: (port & 0xFF), valp, count)
! 193:
! 194: void ahd_flush_device_writes(struct ahd_softc *);
! 195:
! 196: /**************************** Locking Primitives ******************************/
! 197: /* Lock protecting internal data structures */
! 198: #define ahd_lockinit(ahd)
! 199: #define ahd_lock(ahd, flags) *(flags) = splbio()
! 200: #define ahd_unlock(ahd, flags) splx(*(flags))
! 201:
! 202: /* Lock held during command completion to the upper layer */
! 203: #define ahd_done_lockinit(ahd)
! 204: #define ahd_done_lock(ahd, flags)
! 205: #define ahd_done_unlock(ahd, flags)
! 206:
! 207: /* Lock held during ahd_list manipulation and ahd softc frees */
! 208: #define ahd_list_lockinit(x)
! 209: #define ahd_list_lock(flags) *(flags) = splbio()
! 210: #define ahd_list_unlock(flags) splx(*(flags))
! 211:
! 212: /****************************** OS Primitives *********************************/
! 213: #define scsi_4btoul(b) (_4btol(b))
! 214:
! 215: /************************** Transaction Operations ****************************/
! 216: #define aic_set_transaction_status(scb, status) (scb)->xs->error = (status)
! 217: #define aic_set_scsi_status(scb, status) (scb)->xs->xs_status = (status)
! 218: #define aic_set_transaction_tag(scb, enabled, type)
! 219: #define aic_set_residual(scb, residual) (scb)->xs->resid = (residual)
! 220: #define aic_set_sense_residual(scb, residual) (scb)->xs->resid = (residual)
! 221:
! 222: #define aic_get_transaction_status(scb) \
! 223: (((scb)->xs->flags & ITSDONE) ? CAM_REQ_CMP : (scb)->xs->error)
! 224: #define aic_get_scsi_status(scb) ((scb)->xs->status)
! 225: #define aic_get_transfer_length(scb) ((scb)->xs->datalen)
! 226: #define aic_get_transfer_dir(scb) \
! 227: ((scb)->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT))
! 228: #define aic_get_residual(scb) ((scb)->xs->resid)
! 229: #define aic_get_sense_bufsize(ahd, scb) (sizeof(struct scsi_sense_data))
! 230:
! 231: #define aic_perform_autosense(scb) (1)
! 232:
! 233: #define aic_freeze_simq(ahd)
! 234: #define aic_release_simq(ahd)
! 235: #define aic_freeze_scb(scb)
! 236: #define ahd_platform_freeze_devq(ahd, scb)
! 237: #define ahd_platform_abort_scbs(ahd, target, channel, lun, tag, role, status)
! 238:
! 239: void aic_platform_scb_free(struct ahd_softc *, struct scb *);
! 240:
! 241: /********************************** PCI ***************************************/
! 242: /*#if AHD_PCI_CONFIG > 0*/
! 243: #define aic_get_pci_function(pci) ((pci)->pa_function)
! 244: #define aic_get_pci_slot(pci) ((pci)->pa_device)
! 245: #define aic_get_pci_bus(pci) ((pci)->pa_bus)
! 246:
! 247: int ahd_pci_map_registers(struct ahd_softc *);
! 248: int ahd_pci_map_int(struct ahd_softc *);
! 249: /*#endif*/
! 250:
! 251: typedef enum
! 252: {
! 253: AHD_POWER_STATE_D0,
! 254: AHD_POWER_STATE_D1,
! 255: AHD_POWER_STATE_D2,
! 256: AHD_POWER_STATE_D3
! 257: } ahd_power_state;
! 258:
! 259: void ahd_power_state_change(struct ahd_softc *, ahd_power_state);
! 260:
! 261: /********************************* Debug **************************************/
! 262: void ahd_print_path(struct ahd_softc *, struct scb *);
! 263: void ahd_platform_dump_card_state(struct ahd_softc *ahd);
! 264:
! 265: /**************************** Transfer Settings *******************************/
! 266: void ahd_notify_xfer_settings_change(struct ahd_softc *,
! 267: struct ahd_devinfo *);
! 268: void ahd_platform_set_tags(struct ahd_softc *, struct ahd_devinfo *,
! 269: ahd_queue_alg);
! 270:
! 271: /************************* Initialization/Teardown ****************************/
! 272: int ahd_platform_alloc(struct ahd_softc *, void *);
! 273: void ahd_platform_free(struct ahd_softc *);
! 274: int ahd_attach(struct ahd_softc *);
! 275: int ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd);
! 276: int ahd_detach(struct device *, int);
! 277:
! 278: #define ahd_platform_init(ahd)
! 279:
! 280: /****************************** Interrupts ************************************/
! 281: int ahd_platform_intr(void *);
! 282: void ahd_platform_flushwork(struct ahd_softc *ahd);
! 283: /************************ Misc Function Declarations **************************/
! 284: void ahd_done(struct ahd_softc *, struct scb *);
! 285: void ahd_send_async(struct ahd_softc *, char /*channel*/,
! 286: u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
! 287: #endif /* _AIC79XX_OPENBSD_H_ */
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