3f2f99f7d2
driver. Trim its fingernails by removing some useless bits before fixing the 'thread not terminated on detach' problem. o dmacnt is no longer used now that we allocate at attach time. Remove it from struct fdc_data. o ISPNP was only ever set, but never tested. It used to be used for the allocation routines to change how it allocated resources. Since that's no longer necessary, retire the flag. o ISPCMICA was only ever tested, but never set. GC it. This removes a special case in determining the drive type. The drive type is now set in fdc_pcmcia.c, so the hack isn't needed anymore. Sadly, this isn't tested with a Y-E Data pcmcia floppy drive because there are a number of other issues that preclude it from working. o Fix ifdef for reading from the rtc. I'm of the opinion that this ifdef should be moved into fdc_isa.c, but not today as ideally there'd be other fixes to the probing of children. So now we just read it on i386 ! pc98 (there's no #define for MACHINE_ARCH, just MACHINE, hence this slightly inelegant kludge) and amd64. The PC98 exclusion likely isn't meaningful since pc98 uses a different driver, but will be when merging of the pc98 floppy code into this driver is complete (this is the other reason I think this block of code belongs outside fdc.c). All of these changes are safe to MT5.
94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
/*-
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* Copyright (c) 2004 M. Warner Losh.
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* All rights reserved.
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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
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* are met:
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* 1. 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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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* XXX should audit this file to see if additional copyrights needed */
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enum fdc_type {
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FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
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};
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/*
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* Per controller structure (softc).
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*/
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struct fdc_data {
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int fdcu; /* our unit number */
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int dmachan;
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int flags;
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#define FDC_HASDMA 0x01
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#define FDC_STAT_VALID 0x08
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#define FDC_HAS_FIFO 0x10
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#define FDC_NEEDS_RESET 0x20
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#define FDC_NODMA 0x40
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struct fd_data *fd; /* The active drive */
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int retry;
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int fdout; /* mirror of the w/o digital output reg */
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u_int status[7]; /* copy of the registers */
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enum fdc_type fdct; /* chip version of FDC */
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int fdc_errs; /* number of logged errors */
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struct bio_queue_head head;
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struct bio *bp; /* active buffer */
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struct resource *res_ioport, *res_sts, *res_ctl, *res_irq, *res_drq;
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int rid_ioport, rid_sts, rid_ctl, rid_irq, rid_drq;
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bus_space_tag_t portt;
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bus_space_handle_t porth;
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bus_space_tag_t stst;
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bus_space_handle_t stsh;
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bus_space_tag_t ctlt;
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bus_space_handle_t ctlh;
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int port_off;
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int ctl_off;
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int sts_off;
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void *fdc_intr;
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struct device *fdc_dev;
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struct mtx fdc_mtx;
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struct proc *fdc_thread;
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};
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extern devclass_t fdc_devclass;
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enum fdc_device_ivars {
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FDC_IVAR_FDUNIT,
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FDC_IVAR_FDTYPE,
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};
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__BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
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__BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
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void fdc_release_resources(struct fdc_data *);
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int fdc_attach(device_t);
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int fdc_hints_probe(device_t);
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int fdc_detach(device_t dev);
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device_t fdc_add_child(device_t, const char *, int);
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int fdc_initial_reset(device_t, struct fdc_data *);
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int fdc_print_child(device_t, device_t);
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int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
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int fdc_write_ivar(device_t, device_t, int, uintptr_t);
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int fdc_isa_alloc_resources(device_t, struct fdc_data *);
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