1 /*- 2 * Copyright (c) 2004-2005 M. Warner Losh. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 /* XXX should audit this file to see if additional copyrights needed */ 30 31 enum fdc_type { 32 FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1 33 }; 34 35 /* 36 * Per controller structure (softc). 37 */ 38 struct fdc_data { 39 int fdcu; /* our unit number */ 40 int dmachan; 41 int flags; 42 #define FDC_HASDMA 0x01 43 #define FDC_STAT_VALID 0x08 44 #define FDC_HAS_FIFO 0x10 45 #define FDC_NEEDS_RESET 0x20 46 #define FDC_NODMA 0x40 /* Don't do DMA */ 47 #define FDC_NOFAST 0x80 /* Don't register isr as a fast one */ 48 #define FDC_KTHREAD_EXIT 0x1000 /* request worker thread to stop */ 49 #define FDC_KTHREAD_ALIVE 0x2000 /* worker thread is alive */ 50 struct fd_data *fd; /* The active drive */ 51 int retry; 52 int fdout; /* mirror of the w/o digital output reg */ 53 u_int status[7]; /* copy of the registers */ 54 enum fdc_type fdct; /* chip version of FDC */ 55 int fdc_errs; /* number of logged errors */ 56 struct bio_queue_head head; 57 struct bio *bp; /* active buffer */ 58 struct resource *res_irq, *res_drq; 59 int rid_irq, rid_drq; 60 #define FDC_MAXREG 8 61 int ridio[FDC_MAXREG]; 62 struct resource *resio[FDC_MAXREG]; 63 bus_space_tag_t iot; 64 bus_space_handle_t ioh[FDC_MAXREG]; 65 int ioff[FDC_MAXREG]; 66 void *fdc_intr; 67 struct device *fdc_dev; 68 struct mtx fdc_mtx; 69 struct proc *fdc_thread; 70 }; 71 72 extern devclass_t fdc_devclass; 73 74 enum fdc_device_ivars { 75 FDC_IVAR_FDUNIT, 76 FDC_IVAR_FDTYPE, 77 }; 78 79 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int); 80 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int); 81 82 void fdc_release_resources(struct fdc_data *); 83 int fdc_attach(device_t); 84 int fdc_hints_probe(device_t); 85 int fdc_detach(device_t dev); 86 device_t fdc_add_child(device_t, const char *, int); 87 int fdc_initial_reset(device_t, struct fdc_data *); 88 int fdc_print_child(device_t, device_t); 89 int fdc_read_ivar(device_t, device_t, int, uintptr_t *); 90 int fdc_write_ivar(device_t, device_t, int, uintptr_t); 91 int fdc_isa_alloc_resources(device_t, struct fdc_data *); 92