1 /* $OpenBSD: qecvar.h,v 1.3 2006/06/02 20:00:56 miod Exp $ */
2 /* $NetBSD: qecvar.h,v 1.4 1999/01/17 20:47:50 pk Exp $ */
3
4 /*-
5 * Copyright (c) 1998 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Paul Kranenburg.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 struct qec_softc {
41 struct device sc_dev; /* us as a device */
42 bus_space_tag_t sc_bustag; /* bus & dma tags */
43 bus_dma_tag_t sc_dmatag;
44 struct sbus_range *sc_range; /* PROM ranges */
45 int sc_nrange; /* */
46 struct sbus_intr *sc_intr; /* interrupt info */
47
48 bus_space_handle_t sc_regs; /* QEC registers */
49 int sc_nchannels; /* # of channels on board */
50 int sc_burst; /* DVMA burst size in effect */
51 caddr_t sc_buffer; /* VA of the buffer we provide */
52 int sc_bufsiz; /* Size of buffer */
53
54 u_int sc_msize; /* QEC buffer offset per channel */
55 u_int sc_rsize; /* QEC buffer size for receive */
56 };
57
58 struct qec_ring {
59 /* Ring Descriptors */
60 caddr_t rb_membase; /* Packet buffer: CPU address */
61 bus_addr_t rb_dmabase; /* Packet buffer: DMA address */
62 struct qec_xd *rb_txd; /* Transmit descriptors */
63 bus_addr_t rb_txddma; /* DMA address of same */
64 struct qec_xd *rb_rxd; /* Receive descriptors */
65 bus_addr_t rb_rxddma; /* DMA address of same */
66 caddr_t rb_txbuf; /* Transmit buffers */
67 caddr_t rb_rxbuf; /* Receive buffers */
68 int rb_ntbuf; /* # of transmit buffers */
69 int rb_nrbuf; /* # of receive buffers */
70
71 /* Ring Descriptor state */
72 int rb_tdhead, rb_tdtail;
73 int rb_rdtail;
74 int rb_td_nbusy;
75 };
76
77 void qec_meminit(struct qec_ring *, unsigned int);