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Diffstat (limited to 'sys/dev/twe/twe_compat.h')
| -rw-r--r-- | sys/dev/twe/twe_compat.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/sys/dev/twe/twe_compat.h b/sys/dev/twe/twe_compat.h new file mode 100644 index 0000000..c2f75e1 --- /dev/null +++ b/sys/dev/twe/twe_compat.h @@ -0,0 +1,179 @@ +/*- + * Copyright (c) 2000 Michael Smith + * Copyright (c) 2000 BSDi + * 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. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 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. + * + * $FreeBSD$ + */ +/* + * Portability and compatibility interfaces. + */ + +#ifdef __FreeBSD__ +/****************************************************************************** + * FreeBSD + */ +#define TWE_SUPPORTED_PLATFORM + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/malloc.h> +#include <sys/kernel.h> + +#include <sys/bus.h> +#include <sys/conf.h> +#include <sys/disk.h> +#include <sys/stat.h> + +#include <machine/bus_pio.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/rman.h> + +#include <pci/pcireg.h> +#include <pci/pcivar.h> + +/* + * These macros allows us to build a version of the driver which can + * safely be loaded into a kernel which already contains a 'twe' driver, + * and which will override it in all things. + * + * All public symbols must be listed here. + */ +#ifdef TWE_OVERRIDE +#define twe_setup Xtwe_setup +#define twe_init Xtwe_init +#define twe_deinit Xtwe_deinit +#define twe_intr Xtwe_intr +#define twe_submit_bio Xtwe_submit_bio +#define twe_ioctl Xtwe_ioctl +#define twe_describe_controller Xtwe_describe_controller +#define twe_print_controller Xtwe_print_controller +#define twe_enable_interrupts Xtwe_enable_interrupts +#define twe_disable_interrupts Xtwe_disable_interrupts +#define twe_attach_drive Xtwe_attach_drive +#define twed_intr Xtwed_intr +#define twe_allocate_request Xtwe_allocate_request +#define twe_free_request Xtwe_free_request +#define twe_map_request Xtwe_map_request +#define twe_unmap_request Xtwe_unmap_request +#define twe_describe_code Xtwe_describe_code +#define twe_table_status Xtwe_table_status +#define twe_table_unitstate Xtwe_table_unitstate +#define twe_table_unittype Xtwe_table_unittype +#define twe_table_aen Xtwe_table_aen +#define TWE_DRIVER_NAME Xtwe +#define TWED_DRIVER_NAME Xtwed +#define TWE_MALLOC_CLASS M_XTWE +#else +#define TWE_DRIVER_NAME twe +#define TWED_DRIVER_NAME twed +#define TWE_MALLOC_CLASS M_TWE +#endif + +/* + * Wrappers for bus-space actions + */ +#define TWE_CONTROL(sc, val) bus_space_write_4(sc->twe_btag, sc->twe_bhandle, 0x0, (u_int32_t)val) +#define TWE_STATUS(sc) (u_int32_t)bus_space_read_4(sc->twe_btag, sc->twe_bhandle, 0x4) +#define TWE_COMMAND_QUEUE(sc, val) bus_space_write_4(sc->twe_btag, sc->twe_bhandle, 0x8, (u_int32_t)val) +#define TWE_RESPONSE_QUEUE(sc) (TWE_Response_Queue)bus_space_read_4(sc->twe_btag, sc->twe_bhandle, 0xc) + +/* + * FreeBSD-specific softc elements + */ +#define TWE_PLATFORM_SOFTC \ + device_t twe_dev; /* bus device */ \ + dev_t twe_dev_t; /* control device */ \ + struct resource *twe_io; /* register interface window */ \ + bus_space_handle_t twe_bhandle; /* bus space handle */ \ + bus_space_tag_t twe_btag; /* bus space tag */ \ + bus_dma_tag_t twe_parent_dmat; /* parent DMA tag */ \ + bus_dma_tag_t twe_buffer_dmat; /* data buffer DMA tag */ \ + struct resource *twe_irq; /* interrupt */ \ + void *twe_intr; /* interrupt handle */ \ + struct intr_config_hook twe_ich; /* delayed-startup hook */ + +/* + * FreeBSD-specific request elements + */ +#define TWE_PLATFORM_REQUEST \ + bus_dmamap_t tr_cmdmap; /* DMA map for command */ \ + u_int32_t tr_cmdphys; /* address of command in controller space */ \ + bus_dmamap_t tr_dmamap; /* DMA map for data */ \ + u_int32_t tr_dataphys; /* data buffer base address in controller space */ + +/* + * Output identifying the controller/disk + */ +#define twe_printf(sc, fmt, args...) device_printf(sc->twe_dev, fmt , ##args) +#define twed_printf(twed, fmt, args...) device_printf(twed->twed_dev, fmt , ##args) + +#if __FreeBSD_version < 500003 /* old buf style */ +# include <sys/buf.h> +typedef struct buf twe_bio; +typedef struct buf_queue_head twe_bioq; +# define TWE_BIO_QINIT(bq) bufq_init(&bq); +# define TWE_BIO_QINSERT(bq, bp) bufq_insert_tail(&bq, bp) +# define TWE_BIO_QFIRST(bq) bufq_first(&bq) +# define TWE_BIO_QREMOVE(bq, bp) bufq_remove(&bq, bp) +# define TWE_BIO_IS_READ(bp) ((bp)->b_flags & B_READ) +# define TWE_BIO_DATA(bp) (bp)->b_data +# define TWE_BIO_LENGTH(bp) (bp)->b_bcount +# define TWE_BIO_LBA(bp) (bp)->b_pblkno +# define TWE_BIO_SOFTC(bp) (bp)->b_dev->si_drv1 +# define TWE_BIO_UNIT(bp) *(int *)((bp)->b_dev->si_drv2) +# define TWE_BIO_SET_ERROR(bp, err) do { (bp)->b_error = err; (bp)->b_flags |= B_ERROR;} while(0) +# define TWE_BIO_HAS_ERROR(bp) ((bp)->b_flags & B_ERROR) +# define TWE_BIO_RESID(bp) (bp)->b_resid +# define TWE_BIO_DONE(bp) biodone(bp) +# define TWE_BIO_STATS_START(bp) devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats) +# define TWE_BIO_STATS_END(bp) devstat_end_transaction_buf(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp) +#else +# include <sys/bio.h> +typedef struct bio twe_bio; +typedef struct bio_queue_head twe_bioq; +# define TWE_BIO_QINIT(bq) bioq_init(&bq); +# define TWE_BIO_QINSERT(bq, bp) bioq_insert_tail(&bq, bp) +# define TWE_BIO_QFIRST(bq) bioq_first(&bq) +# define TWE_BIO_QREMOVE(bq, bp) bioq_remove(&bq, bp) +# define TWE_BIO_IS_READ(bp) ((bp)->bio_cmd == BIO_READ) +# define TWE_BIO_DATA(bp) (bp)->bio_data +# define TWE_BIO_LENGTH(bp) (bp)->bio_bcount +# define TWE_BIO_LBA(bp) (bp)->bio_pblkno +# define TWE_BIO_SOFTC(bp) (bp)->bio_dev->si_drv1 +# define TWE_BIO_UNIT(bp) *(int *)((bp)->bio_dev->si_drv2) +# define TWE_BIO_SET_ERROR(bp, err) do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0) +# define TWE_BIO_HAS_ERROR(bp) ((bp)->bio_flags & BIO_ERROR) +# define TWE_BIO_RESID(bp) (bp)->bio_resid +# define TWE_BIO_DONE(bp) biodone(bp) +# define TWE_BIO_STATS_START(bp) devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats) +# define TWE_BIO_STATS_END(bp) devstat_end_transaction_bio(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp) +#endif + +#endif /* FreeBSD */ + +#ifndef TWE_SUPPORTED_PLATFORM +#error platform not supported +#endif |
