1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2000 BSDi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/twe/twe_compat.h,v 1.1.2.3 2002/03/07 09:57:02 msmith Exp $ 28 * $DragonFly: src/sys/dev/raid/twe/twe_compat.h,v 1.2 2003/06/17 04:28:32 dillon Exp $ 29 */ 30 /* 31 * Portability and compatibility interfaces. 32 */ 33 34 #ifdef __FreeBSD__ 35 /****************************************************************************** 36 * FreeBSD 37 */ 38 #define TWE_SUPPORTED_PLATFORM 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/malloc.h> 43 #include <sys/kernel.h> 44 45 #include <sys/bus.h> 46 #include <sys/conf.h> 47 #include <sys/disk.h> 48 #include <sys/stat.h> 49 50 #include <machine/bus_pio.h> 51 #include <machine/bus.h> 52 #include <machine/resource.h> 53 #include <sys/rman.h> 54 55 #include <pci/pcireg.h> 56 #include <pci/pcivar.h> 57 58 /* 59 * These macros allows us to build a version of the driver which can 60 * safely be loaded into a kernel which already contains a 'twe' driver, 61 * and which will override it in all things. 62 * 63 * All public symbols must be listed here. 64 */ 65 #ifdef TWE_OVERRIDE 66 #define twe_setup Xtwe_setup 67 #define twe_init Xtwe_init 68 #define twe_deinit Xtwe_deinit 69 #define twe_intr Xtwe_intr 70 #define twe_submit_bio Xtwe_submit_bio 71 #define twe_ioctl Xtwe_ioctl 72 #define twe_describe_controller Xtwe_describe_controller 73 #define twe_print_controller Xtwe_print_controller 74 #define twe_enable_interrupts Xtwe_enable_interrupts 75 #define twe_disable_interrupts Xtwe_disable_interrupts 76 #define twe_attach_drive Xtwe_attach_drive 77 #define twed_intr Xtwed_intr 78 #define twe_allocate_request Xtwe_allocate_request 79 #define twe_free_request Xtwe_free_request 80 #define twe_map_request Xtwe_map_request 81 #define twe_unmap_request Xtwe_unmap_request 82 #define twe_describe_code Xtwe_describe_code 83 #define twe_table_status Xtwe_table_status 84 #define twe_table_unitstate Xtwe_table_unitstate 85 #define twe_table_unittype Xtwe_table_unittype 86 #define twe_table_aen Xtwe_table_aen 87 #define TWE_DRIVER_NAME Xtwe 88 #define TWED_DRIVER_NAME Xtwed 89 #define TWE_MALLOC_CLASS M_XTWE 90 #else 91 #define TWE_DRIVER_NAME twe 92 #define TWED_DRIVER_NAME twed 93 #define TWE_MALLOC_CLASS M_TWE 94 #endif 95 96 /* 97 * Wrappers for bus-space actions 98 */ 99 #define TWE_CONTROL(sc, val) bus_space_write_4(sc->twe_btag, sc->twe_bhandle, 0x0, (u_int32_t)val) 100 #define TWE_STATUS(sc) (u_int32_t)bus_space_read_4(sc->twe_btag, sc->twe_bhandle, 0x4) 101 #define TWE_COMMAND_QUEUE(sc, val) bus_space_write_4(sc->twe_btag, sc->twe_bhandle, 0x8, (u_int32_t)val) 102 #define TWE_RESPONSE_QUEUE(sc) (TWE_Response_Queue)bus_space_read_4(sc->twe_btag, sc->twe_bhandle, 0xc) 103 104 /* 105 * FreeBSD-specific softc elements 106 */ 107 #define TWE_PLATFORM_SOFTC \ 108 device_t twe_dev; /* bus device */ \ 109 dev_t twe_dev_t; /* control device */ \ 110 struct resource *twe_io; /* register interface window */ \ 111 bus_space_handle_t twe_bhandle; /* bus space handle */ \ 112 bus_space_tag_t twe_btag; /* bus space tag */ \ 113 bus_dma_tag_t twe_parent_dmat; /* parent DMA tag */ \ 114 bus_dma_tag_t twe_buffer_dmat; /* data buffer DMA tag */ \ 115 struct resource *twe_irq; /* interrupt */ \ 116 void *twe_intr; /* interrupt handle */ \ 117 struct intr_config_hook twe_ich; /* delayed-startup hook */ 118 119 /* 120 * FreeBSD-specific request elements 121 */ 122 #define TWE_PLATFORM_REQUEST \ 123 bus_dmamap_t tr_cmdmap; /* DMA map for command */ \ 124 u_int32_t tr_cmdphys; /* address of command in controller space */ \ 125 bus_dmamap_t tr_dmamap; /* DMA map for data */ \ 126 u_int32_t tr_dataphys; /* data buffer base address in controller space */ 127 128 /* 129 * Output identifying the controller/disk 130 */ 131 #define twe_printf(sc, fmt, args...) device_printf(sc->twe_dev, fmt , ##args) 132 #define twed_printf(twed, fmt, args...) device_printf(twed->twed_dev, fmt , ##args) 133 134 #if __FreeBSD_version < 500003 135 # include <machine/clock.h> 136 # define INTR_ENTROPY 0 137 138 # include <sys/buf.h> /* old buf style */ 139 typedef struct buf twe_bio; 140 typedef struct buf_queue_head twe_bioq; 141 # define TWE_BIO_QINIT(bq) bufq_init(&bq); 142 # define TWE_BIO_QINSERT(bq, bp) bufq_insert_tail(&bq, bp) 143 # define TWE_BIO_QFIRST(bq) bufq_first(&bq) 144 # define TWE_BIO_QREMOVE(bq, bp) bufq_remove(&bq, bp) 145 # define TWE_BIO_IS_READ(bp) ((bp)->b_flags & B_READ) 146 # define TWE_BIO_DATA(bp) (bp)->b_data 147 # define TWE_BIO_LENGTH(bp) (bp)->b_bcount 148 # define TWE_BIO_LBA(bp) (bp)->b_pblkno 149 # define TWE_BIO_SOFTC(bp) (bp)->b_dev->si_drv1 150 # define TWE_BIO_UNIT(bp) *(int *)((bp)->b_dev->si_drv2) 151 # define TWE_BIO_SET_ERROR(bp, err) do { (bp)->b_error = err; (bp)->b_flags |= B_ERROR;} while(0) 152 # define TWE_BIO_HAS_ERROR(bp) ((bp)->b_flags & B_ERROR) 153 # define TWE_BIO_RESID(bp) (bp)->b_resid 154 # define TWE_BIO_DONE(bp) biodone(bp) 155 # define TWE_BIO_STATS_START(bp) devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats) 156 # define TWE_BIO_STATS_END(bp) devstat_end_transaction_buf(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp) 157 #else 158 # include <sys/bio.h> 159 typedef struct bio twe_bio; 160 typedef struct bio_queue_head twe_bioq; 161 # define TWE_BIO_QINIT(bq) bioq_init(&bq); 162 # define TWE_BIO_QINSERT(bq, bp) bioq_insert_tail(&bq, bp) 163 # define TWE_BIO_QFIRST(bq) bioq_first(&bq) 164 # define TWE_BIO_QREMOVE(bq, bp) bioq_remove(&bq, bp) 165 # define TWE_BIO_IS_READ(bp) ((bp)->bio_cmd == BIO_READ) 166 # define TWE_BIO_DATA(bp) (bp)->bio_data 167 # define TWE_BIO_LENGTH(bp) (bp)->bio_bcount 168 # define TWE_BIO_LBA(bp) (bp)->bio_pblkno 169 # define TWE_BIO_SOFTC(bp) (bp)->bio_dev->si_drv1 170 # define TWE_BIO_UNIT(bp) *(int *)((bp)->bio_dev->si_drv2) 171 # define TWE_BIO_SET_ERROR(bp, err) do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0) 172 # define TWE_BIO_HAS_ERROR(bp) ((bp)->bio_flags & BIO_ERROR) 173 # define TWE_BIO_RESID(bp) (bp)->bio_resid 174 # define TWE_BIO_DONE(bp) biodone(bp) 175 # define TWE_BIO_STATS_START(bp) devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats) 176 # define TWE_BIO_STATS_END(bp) devstat_end_transaction_bio(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp) 177 #endif 178 179 #endif /* FreeBSD */ 180 181 #ifndef TWE_SUPPORTED_PLATFORM 182 #error platform not supported 183 #endif 184