1 /*- 2 * Copyright (c) 2004 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 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 /* XXX should audit this file to see if additional copyrights needed */ 32 33 enum fdc_type { 34 FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1 35 }; 36 37 /* 38 * Per controller structure (softc). 39 */ 40 struct fdc_data { 41 int fdcu; /* our unit number */ 42 int dmachan; 43 int flags; 44 #define FDC_HASDMA 0x01 45 #define FDC_STAT_VALID 0x08 46 #define FDC_HAS_FIFO 0x10 47 #define FDC_NEEDS_RESET 0x20 48 #define FDC_NODMA 0x40 49 #define FDC_KTHREAD_EXIT 0x1000 /* request worker thread to stop */ 50 #define FDC_KTHREAD_ALIVE 0x2000 /* worker thread is alive */ 51 struct fd_data *fd; /* The active drive */ 52 int retry; 53 int fdout; /* mirror of the w/o digital output reg */ 54 u_int status[7]; /* copy of the registers */ 55 enum fdc_type fdct; /* chip version of FDC */ 56 int fdc_errs; /* number of logged errors */ 57 struct bio_queue_head head; 58 struct bio *bp; /* active buffer */ 59 struct resource *res_ioport, *res_sts, *res_ctl, *res_irq, *res_drq; 60 int rid_ioport, rid_sts, rid_ctl, rid_irq, rid_drq; 61 bus_space_tag_t portt; 62 bus_space_handle_t porth; 63 bus_space_tag_t stst; 64 bus_space_handle_t stsh; 65 bus_space_tag_t ctlt; 66 bus_space_handle_t ctlh; 67 int port_off; 68 int ctl_off; 69 int sts_off; 70 void *fdc_intr; 71 struct device *fdc_dev; 72 struct mtx fdc_mtx; 73 struct proc *fdc_thread; 74 }; 75 76 extern devclass_t fdc_devclass; 77 78 enum fdc_device_ivars { 79 FDC_IVAR_FDUNIT, 80 FDC_IVAR_FDTYPE, 81 }; 82 83 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int); 84 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int); 85 86 void fdc_release_resources(struct fdc_data *); 87 int fdc_attach(device_t); 88 int fdc_hints_probe(device_t); 89 int fdc_detach(device_t dev); 90 device_t fdc_add_child(device_t, const char *, int); 91 int fdc_initial_reset(device_t, struct fdc_data *); 92 int fdc_print_child(device_t, device_t); 93 int fdc_read_ivar(device_t, device_t, int, uintptr_t *); 94 int fdc_write_ivar(device_t, device_t, int, uintptr_t); 95 int fdc_isa_alloc_resources(device_t, struct fdc_data *); 96