739 lines
21 KiB
C
739 lines
21 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of Cavium Networks nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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*
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
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* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
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* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
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* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
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* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
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* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
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* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
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* POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
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* OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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*
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*
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* For any questions regarding licensing please contact marketing@caviumnetworks.com
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*
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***********************license end**************************************/
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/*
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* octeon_ebt3000_cf.c
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bio.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/ata.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <sys/power.h>
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#include <sys/smp.h>
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#include <sys/time.h>
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#include <sys/timetc.h>
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#include <sys/malloc.h>
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#include <geom/geom.h>
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#include <machine/clock.h>
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#include <machine/locore.h>
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#include <machine/md_var.h>
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#include <machine/cpuregs.h>
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#include <mips/cavium/octeon_pcmap_regs.h>
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#include <contrib/octeon-sdk/cvmx.h>
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/* ATA Commands */
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#define CMD_READ_SECTOR 0x20
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#define CMD_WRITE_SECTOR 0x30
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#define CMD_IDENTIFY 0xEC
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/* The ATA Task File */
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#define TF_DATA 0x00
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#define TF_ERROR 0x01
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#define TF_PRECOMP 0x01
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#define TF_SECTOR_COUNT 0x02
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#define TF_SECTOR_NUMBER 0x03
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#define TF_CYL_LSB 0x04
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#define TF_CYL_MSB 0x05
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#define TF_DRV_HEAD 0x06
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#define TF_STATUS 0x07
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#define TF_COMMAND 0x07
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/* Status Register */
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#define STATUS_BSY 0x80 /* Drive is busy */
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#define STATUS_RDY 0x40 /* Drive is ready */
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#define STATUS_DF 0x20 /* Device fault */
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#define STATUS_DRQ 0x08 /* Data can be transferred */
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/* Miscelaneous */
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#define SECTOR_SIZE 512
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#define WAIT_DELAY 1000
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#define NR_TRIES 1000
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#define SWAP_SHORT(x) ((x << 8) | (x >> 8))
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#define MODEL_STR_SIZE 40
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/* Globals */
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/*
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* There's three bus types supported by this driver.
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*
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* CF_8 -- Traditional PC Card IDE interface on an 8-bit wide bus. We assume
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* the bool loader has configure attribute memory properly. We then access
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* the device like old-school 8-bit IDE card (which is all a traditional PC Card
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* interface really is).
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* CF_16 -- Traditional PC Card IDE interface on a 16-bit wide bus. Registers on
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* this bus are 16-bits wide too. When accessing registers in the task file, you
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* have to do it in 16-bit chunks, and worry about masking out what you don't want
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* or ORing together the traditional 8-bit values. We assume the bootloader does
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* the right attribute memory initialization dance.
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* CF_TRUE_IDE_8 - CF Card wired to True IDE mode. There's no Attribute memory
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* space at all. Instead all the traditional 8-bit registers are there, but
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* on a 16-bit bus where addr0 isn't wired. This means we need to read/write them
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* 16-bit chunks, but only the lower 8 bits are valid. We do not (and can not)
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* access this like CF_16 with the comingled registers. Yet we can't access
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* this like CF_8 because of the register offset. Except the TF_DATA register
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* appears to be full width?
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*/
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void *base_addr;
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int bus_type;
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#define CF_8 1 /* 8-bit bus, no offsets - PC Card */
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#define CF_16 2 /* 16-bit bus, registers shared - PC Card */
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#define CF_TRUE_IDE_8 3 /* 16-bit bus, only lower 8-bits, TrueIDE */
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const char *const cf_type[] = {
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"impossible type",
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"CF 8-bit",
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"CF 16-bit",
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"True IDE"
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};
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/* Device parameters */
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struct drive_param{
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union {
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char buf[SECTOR_SIZE];
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struct ata_params driveid;
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} u;
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char model[MODEL_STR_SIZE];
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uint32_t nr_sectors;
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uint16_t sector_size;
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uint16_t heads;
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uint16_t tracks;
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uint16_t sec_track;
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};
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/* Device softc */
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struct cf_priv {
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device_t dev;
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struct drive_param drive_param;
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struct bio_queue_head cf_bq;
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struct g_geom *cf_geom;
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struct g_provider *cf_provider;
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};
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/* GEOM class implementation */
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static g_access_t cf_access;
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static g_start_t cf_start;
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static g_ioctl_t cf_ioctl;
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struct g_class g_cf_class = {
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.name = "CF",
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.version = G_VERSION,
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.start = cf_start,
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.access = cf_access,
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.ioctl = cf_ioctl,
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};
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DECLARE_GEOM_CLASS(g_cf_class, g_cf);
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/* Device methods */
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static int cf_probe(device_t);
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static void cf_identify(driver_t *, device_t);
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static int cf_attach(device_t);
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static void cf_attach_geom(void *, int);
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/* ATA methods */
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static int cf_cmd_identify(struct cf_priv *);
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static int cf_cmd_write(uint32_t, uint32_t, void *);
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static int cf_cmd_read(uint32_t, uint32_t, void *);
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static int cf_wait_busy(void);
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static int cf_send_cmd(uint32_t, uint8_t);
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/* Miscelenous */
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static void cf_swap_ascii(unsigned char[], char[]);
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/* ------------------------------------------------------------------- *
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* cf_access() *
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* ------------------------------------------------------------------- */
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static int cf_access (struct g_provider *pp, int r, int w, int e)
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{
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return (0);
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}
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/* ------------------------------------------------------------------- *
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* cf_start() *
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* ------------------------------------------------------------------- */
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static void cf_start (struct bio *bp)
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{
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struct cf_priv *cf_priv;
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int error;
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cf_priv = bp->bio_to->geom->softc;
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/*
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* Handle actual I/O requests. The request is passed down through
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* the bio struct.
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*/
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switch (bp->bio_cmd) {
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case BIO_GETATTR:
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if (g_handleattr_int(bp, "GEOM::fwsectors", cf_priv->drive_param.sec_track))
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return;
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if (g_handleattr_int(bp, "GEOM::fwheads", cf_priv->drive_param.heads))
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return;
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g_io_deliver(bp, ENOIOCTL);
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return;
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case BIO_READ:
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error = cf_cmd_read(bp->bio_length / cf_priv->drive_param.sector_size,
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bp->bio_offset / cf_priv->drive_param.sector_size, bp->bio_data);
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break;
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case BIO_WRITE:
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error = cf_cmd_write(bp->bio_length / cf_priv->drive_param.sector_size,
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bp->bio_offset/cf_priv->drive_param.sector_size, bp->bio_data);
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break;
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default:
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printf("%s: unrecognized bio_cmd %x.\n", __func__, bp->bio_cmd);
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error = ENOTSUP;
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break;
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}
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if (error != 0) {
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g_io_deliver(bp, error);
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return;
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}
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bp->bio_resid = 0;
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bp->bio_completed = bp->bio_length;
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g_io_deliver(bp, 0);
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}
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static int cf_ioctl (struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
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{
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return (0);
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}
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static uint8_t cf_inb_8(int port)
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{
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/*
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* Traditional 8-bit PC Card/CF bus access.
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*/
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if (bus_type == CF_8) {
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volatile uint8_t *task_file = (volatile uint8_t *)base_addr;
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return task_file[port];
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}
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/*
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* True IDE access. lower 8 bits on a 16-bit bus (see above).
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*/
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volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
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return task_file[port] & 0xff;
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}
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static void cf_outb_8(int port, uint8_t val)
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{
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/*
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* Traditional 8-bit PC Card/CF bus access.
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*/
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if (bus_type == CF_8) {
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volatile uint8_t *task_file = (volatile uint8_t *)base_addr;
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task_file[port] = val;
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return;
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}
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/*
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* True IDE access. lower 8 bits on a 16-bit bus (see above).
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*/
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volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
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task_file[port] = val & 0xff;
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}
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static uint8_t cf_inb_16(int port)
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{
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volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
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uint16_t val = task_file[port / 2];
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if (port & 1)
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return (val >> 8) & 0xff;
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return val & 0xff;
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}
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static uint16_t cf_inw_16(int port)
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{
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volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
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uint16_t val = task_file[port / 2];
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return val;
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}
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static void cf_outw_16(int port, uint16_t val)
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{
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volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
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task_file[port / 2] = val;
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}
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/* ------------------------------------------------------------------- *
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* cf_cmd_read() *
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* ------------------------------------------------------------------- *
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*
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* Read nr_sectors from the device starting from start_sector.
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*/
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static int cf_cmd_read (uint32_t nr_sectors, uint32_t start_sector, void *buf)
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{
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unsigned long lba;
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uint32_t count;
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uint16_t *ptr_16;
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uint8_t *ptr_8;
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int error;
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ptr_8 = (uint8_t*)buf;
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ptr_16 = (uint16_t*)buf;
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lba = start_sector;
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while (nr_sectors--) {
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error = cf_send_cmd(lba, CMD_READ_SECTOR);
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if (error != 0) {
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printf("%s: cf_send_cmd(CMD_READ_SECTOR) failed: %d\n", __func__, error);
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return (error);
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}
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switch (bus_type)
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{
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case CF_8:
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for (count = 0; count < SECTOR_SIZE; count++) {
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*ptr_8++ = cf_inb_8(TF_DATA);
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if ((count & 0xf) == 0)
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(void)cf_inb_8(TF_STATUS);
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}
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break;
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case CF_TRUE_IDE_8:
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case CF_16:
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default:
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for (count = 0; count < SECTOR_SIZE; count+=2) {
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uint16_t temp;
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temp = cf_inw_16(TF_DATA);
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*ptr_16++ = SWAP_SHORT(temp);
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if ((count & 0xf) == 0)
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(void)cf_inb_16(TF_STATUS);
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}
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break;
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}
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lba++;
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}
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return (0);
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}
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/* ------------------------------------------------------------------- *
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* cf_cmd_write() *
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* ------------------------------------------------------------------- *
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*
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* Write nr_sectors to the device starting from start_sector.
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*/
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static int cf_cmd_write (uint32_t nr_sectors, uint32_t start_sector, void *buf)
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{
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uint32_t lba;
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uint32_t count;
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uint16_t *ptr_16;
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uint8_t *ptr_8;
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int error;
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lba = start_sector;
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ptr_8 = (uint8_t*)buf;
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ptr_16 = (uint16_t*)buf;
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while (nr_sectors--) {
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error = cf_send_cmd(lba, CMD_WRITE_SECTOR);
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if (error != 0) {
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printf("%s: cf_send_cmd(CMD_WRITE_SECTOR) failed: %d\n", __func__, error);
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return (error);
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}
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switch (bus_type)
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{
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case CF_8:
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for (count = 0; count < SECTOR_SIZE; count++) {
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cf_outb_8(TF_DATA, *ptr_8++);
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if ((count & 0xf) == 0)
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(void)cf_inb_8(TF_STATUS);
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}
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break;
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case CF_TRUE_IDE_8:
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case CF_16:
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default:
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for (count = 0; count < SECTOR_SIZE; count+=2) {
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uint16_t temp = *ptr_16++;
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cf_outw_16(TF_DATA, SWAP_SHORT(temp));
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if ((count & 0xf) == 0)
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(void)cf_inb_16(TF_STATUS);
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}
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break;
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}
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lba++;
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}
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return (0);
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}
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/* ------------------------------------------------------------------- *
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* cf_cmd_identify() *
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* ------------------------------------------------------------------- *
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*
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* Read parameters and other information from the drive and store
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* it in the drive_param structure
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*
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*/
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static int cf_cmd_identify(struct cf_priv *cf_priv)
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{
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int count;
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int error;
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error = cf_send_cmd(0, CMD_IDENTIFY);
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if (error != 0) {
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printf("%s: identify failed: %d\n", __func__, error);
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return (error);
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}
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switch (bus_type)
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{
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case CF_8:
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for (count = 0; count < SECTOR_SIZE; count++)
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cf_priv->drive_param.u.buf[count] = cf_inb_8(TF_DATA);
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break;
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case CF_TRUE_IDE_8:
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case CF_16:
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default:
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for (count = 0; count < SECTOR_SIZE; count += 2) {
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uint16_t temp;
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temp = cf_inw_16(TF_DATA);
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/* endianess will be swapped below */
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cf_priv->drive_param.u.buf[count] = (temp & 0xff);
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cf_priv->drive_param.u.buf[count + 1] = (temp & 0xff00) >> 8;
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}
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break;
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}
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cf_swap_ascii(cf_priv->drive_param.u.driveid.model, cf_priv->drive_param.model);
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cf_priv->drive_param.sector_size = 512; //= SWAP_SHORT (cf_priv->drive_param.u.driveid.sector_bytes);
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cf_priv->drive_param.heads = SWAP_SHORT (cf_priv->drive_param.u.driveid.current_heads);
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cf_priv->drive_param.tracks = SWAP_SHORT (cf_priv->drive_param.u.driveid.current_cylinders);
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cf_priv->drive_param.sec_track = SWAP_SHORT (cf_priv->drive_param.u.driveid.current_sectors);
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cf_priv->drive_param.nr_sectors = (uint32_t)SWAP_SHORT (cf_priv->drive_param.u.driveid.lba_size_1) |
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((uint32_t)SWAP_SHORT (cf_priv->drive_param.u.driveid.lba_size_2));
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if (bootverbose) {
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printf(" model %s\n", cf_priv->drive_param.model);
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printf(" heads %d tracks %d sec_tracks %d sectors %d\n",
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cf_priv->drive_param.heads, cf_priv->drive_param.tracks,
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cf_priv->drive_param.sec_track, cf_priv->drive_param.nr_sectors);
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}
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return (0);
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}
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/* ------------------------------------------------------------------- *
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* cf_send_cmd() *
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* ------------------------------------------------------------------- *
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*
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* Send command to read/write one sector specified by lba.
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*
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*/
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static int cf_send_cmd (uint32_t lba, uint8_t cmd)
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{
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switch (bus_type)
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{
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case CF_8:
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case CF_TRUE_IDE_8:
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while (cf_inb_8(TF_STATUS) & STATUS_BSY)
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DELAY(WAIT_DELAY);
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cf_outb_8(TF_SECTOR_COUNT, 1);
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cf_outb_8(TF_SECTOR_NUMBER, lba & 0xff);
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cf_outb_8(TF_CYL_LSB, (lba >> 8) & 0xff);
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cf_outb_8(TF_CYL_MSB, (lba >> 16) & 0xff);
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cf_outb_8(TF_DRV_HEAD, ((lba >> 24) & 0xff) | 0xe0);
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cf_outb_8(TF_COMMAND, cmd);
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break;
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case CF_16:
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default:
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while (cf_inb_16(TF_STATUS) & STATUS_BSY)
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DELAY(WAIT_DELAY);
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cf_outw_16(TF_SECTOR_COUNT, 1 | ((lba & 0xff) << 8));
|
|
cf_outw_16(TF_CYL_LSB, ((lba >> 8) & 0xff) | (((lba >> 16) & 0xff) << 8));
|
|
cf_outw_16(TF_DRV_HEAD, (((lba >> 24) & 0xff) | 0xe0) | (cmd << 8));
|
|
break;
|
|
}
|
|
|
|
return (cf_wait_busy());
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_wait_busy() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Wait until the drive finishes a given command and data is
|
|
* ready to be transferred. This is done by repeatedly checking
|
|
* the BSY bit of the status register. When the controller is ready for
|
|
* data transfer, it clears the BSY bit and sets the DRQ bit.
|
|
*
|
|
* If the DF bit is ever set, we return error.
|
|
*
|
|
* This code originally spun on DRQ. If that behavior turns out to be
|
|
* necessary, a flag can be added or this function can be called
|
|
* repeatedly as long as it is returning ENXIO.
|
|
*/
|
|
static int cf_wait_busy (void)
|
|
{
|
|
uint8_t status;
|
|
|
|
switch (bus_type)
|
|
{
|
|
case CF_8:
|
|
case CF_TRUE_IDE_8:
|
|
status = cf_inb_8(TF_STATUS);
|
|
while ((status & STATUS_BSY) == STATUS_BSY) {
|
|
if ((status & STATUS_DF) != 0) {
|
|
printf("%s: device fault (status=%x)\n", __func__, status);
|
|
return (EIO);
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
status = cf_inb_8(TF_STATUS);
|
|
}
|
|
break;
|
|
case CF_16:
|
|
default:
|
|
status = cf_inb_16(TF_STATUS);
|
|
while ((status & STATUS_BSY) == STATUS_BSY) {
|
|
if ((status & STATUS_DF) != 0) {
|
|
printf("%s: device fault (status=%x)\n", __func__, status);
|
|
return (EIO);
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
status = cf_inb_16(TF_STATUS);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* DRQ is only for when read data is actually available; check BSY */
|
|
/* Some vendors do assert DRQ, but not all. Check BSY instead. */
|
|
if (status & STATUS_BSY) {
|
|
printf("%s: device not ready (status=%x)\n", __func__, status);
|
|
return (ENXIO);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_swap_ascii() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* The ascii string returned by the controller specifying
|
|
* the model of the drive is byte-swaped. This routine
|
|
* corrects the byte ordering.
|
|
*
|
|
*/
|
|
static void cf_swap_ascii (unsigned char str1[], char str2[])
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < MODEL_STR_SIZE; i++)
|
|
str2[i] = str1[i ^ 1];
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_probe() *
|
|
* ------------------------------------------------------------------- */
|
|
|
|
static int cf_probe (device_t dev)
|
|
{
|
|
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
|
|
return (ENXIO);
|
|
|
|
if (device_get_unit(dev) != 0) {
|
|
panic("can't attach more devices\n");
|
|
}
|
|
|
|
device_set_desc(dev, "Octeon Compact Flash Driver");
|
|
|
|
return (BUS_PROBE_NOWILDCARD);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_identify() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Find the bootbus region for the CF to determine
|
|
* 16 or 8 bit and check to see if device is
|
|
* inserted.
|
|
*
|
|
*/
|
|
static void cf_identify (driver_t *drv, device_t parent)
|
|
{
|
|
int bus_region;
|
|
int count = 0;
|
|
cvmx_mio_boot_reg_cfgx_t cfg;
|
|
uint64_t phys_base;
|
|
|
|
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
|
|
return;
|
|
|
|
phys_base = cvmx_sysinfo_get()->compact_flash_common_base_addr;
|
|
if (phys_base == 0)
|
|
return;
|
|
base_addr = cvmx_phys_to_ptr(phys_base);
|
|
|
|
for (bus_region = 0; bus_region < 8; bus_region++)
|
|
{
|
|
cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(bus_region));
|
|
if (cfg.s.base == phys_base >> 16)
|
|
{
|
|
if (cvmx_sysinfo_get()->compact_flash_attribute_base_addr == 0)
|
|
bus_type = CF_TRUE_IDE_8;
|
|
else
|
|
bus_type = (cfg.s.width) ? CF_16 : CF_8;
|
|
printf("Compact flash found in bootbus region %d (%s).\n", bus_region, cf_type[bus_type]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (bus_type)
|
|
{
|
|
case CF_8:
|
|
case CF_TRUE_IDE_8:
|
|
/* Check if CF is inserted */
|
|
while (cf_inb_8(TF_STATUS) & STATUS_BSY) {
|
|
if ((count++) == NR_TRIES ) {
|
|
printf("Compact Flash not present\n");
|
|
return;
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
break;
|
|
case CF_16:
|
|
default:
|
|
/* Check if CF is inserted */
|
|
while (cf_inb_16(TF_STATUS) & STATUS_BSY) {
|
|
if ((count++) == NR_TRIES ) {
|
|
printf("Compact Flash not present\n");
|
|
return;
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
break;
|
|
}
|
|
|
|
BUS_ADD_CHILD(parent, 0, "cf", 0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_attach_geom() *
|
|
* ------------------------------------------------------------------- */
|
|
|
|
static void cf_attach_geom (void *arg, int flag)
|
|
{
|
|
struct cf_priv *cf_priv;
|
|
|
|
cf_priv = (struct cf_priv *) arg;
|
|
cf_priv->cf_geom = g_new_geomf(&g_cf_class, "cf%d", device_get_unit(cf_priv->dev));
|
|
cf_priv->cf_geom->softc = cf_priv;
|
|
cf_priv->cf_provider = g_new_providerf(cf_priv->cf_geom, cf_priv->cf_geom->name);
|
|
cf_priv->cf_provider->sectorsize = cf_priv->drive_param.sector_size;
|
|
cf_priv->cf_provider->mediasize = cf_priv->drive_param.nr_sectors * cf_priv->cf_provider->sectorsize;
|
|
g_error_provider(cf_priv->cf_provider, 0);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_attach() *
|
|
* ------------------------------------------------------------------- */
|
|
|
|
static int cf_attach (device_t dev)
|
|
{
|
|
struct cf_priv *cf_priv;
|
|
int error;
|
|
|
|
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
|
|
return (ENXIO);
|
|
|
|
cf_priv = device_get_softc(dev);
|
|
cf_priv->dev = dev;
|
|
|
|
error = cf_cmd_identify(cf_priv);
|
|
if (error != 0) {
|
|
device_printf(dev, "cf_cmd_identify failed: %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
g_post_event(cf_attach_geom, cf_priv, M_WAITOK, NULL);
|
|
bioq_init(&cf_priv->cf_bq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static device_method_t cf_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, cf_probe),
|
|
DEVMETHOD(device_identify, cf_identify),
|
|
DEVMETHOD(device_attach, cf_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t cf_driver = {
|
|
"cf",
|
|
cf_methods,
|
|
sizeof(struct cf_priv)
|
|
};
|
|
|
|
static devclass_t cf_devclass;
|
|
|
|
DRIVER_MODULE(cf, nexus, cf_driver, cf_devclass, 0, 0);
|