Annotation of sys/dev/isa/wdc_isapnp.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: wdc_isapnp.c,v 1.7 2002/03/14 01:26:56 millert Exp $ */
2: /* $NetBSD: wdc_isapnp.c,v 1.13 1999/03/22 10:00:12 mycroft 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 Charles M. Hannum and by Onno van der Linden.
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: #include <sys/types.h>
41: #include <sys/param.h>
42: #include <sys/systm.h>
43: #include <sys/device.h>
44: #include <sys/malloc.h>
45:
46: #include <machine/bus.h>
47: #include <machine/intr.h>
48:
49: #include <dev/isa/isavar.h>
50: #include <dev/isa/isadmavar.h>
51:
52: #include <dev/ata/atavar.h>
53: #include <dev/ic/wdcreg.h>
54: #include <dev/ic/wdcvar.h>
55:
56: struct wdc_isapnp_softc {
57: struct wdc_softc sc_wdcdev;
58: struct channel_softc *wdc_chanptr;
59: struct channel_softc wdc_channel;
60: isa_chipset_tag_t sc_ic;
61: void *sc_ih;
62: int sc_drq;
63: };
64:
65: int wdc_isapnp_match(struct device *, void *, void *);
66: void wdc_isapnp_attach(struct device *, struct device *, void *);
67:
68: struct cfattach wdc_isapnp_ca = {
69: sizeof(struct wdc_isapnp_softc), wdc_isapnp_match, wdc_isapnp_attach
70: };
71:
72: #ifdef notyet
73: static void wdc_isapnp_dma_setup(struct wdc_isapnp_softc *);
74: static void wdc_isapnp_dma_start(void *, void *, size_t, int);
75: static void wdc_isapnp_dma_finish(void *);
76: #endif
77:
78: int
79: wdc_isapnp_match(parent, match, aux)
80: struct device *parent;
81: void *match;
82: void *aux;
83: {
84: struct isa_attach_args *ipa = aux;
85:
86: if (ipa->ipa_nio != 2 ||
87: ipa->ipa_nmem != 0 ||
88: ipa->ipa_nmem32 != 0 ||
89: ipa->ipa_nirq != 1 ||
90: ipa->ipa_ndrq > 1)
91: return 0;
92:
93: return (1);
94: }
95:
96: void
97: wdc_isapnp_attach(parent, self, aux)
98: struct device *parent, *self;
99: void *aux;
100: {
101: struct wdc_isapnp_softc *sc = (void *)self;
102: struct isa_attach_args *ipa = aux;
103:
104:
105: sc->wdc_channel.cmd_iot = ipa->ia_iot;
106: sc->wdc_channel.ctl_iot = ipa->ia_iot;
107:
108: /*
109: * An IDE controller can feed us the regions in any order. Pass
110: * them along with the 8-byte region in sc_ad.ioh, and the other
111: * (2 byte) region in auxioh.
112: */
113: if (ipa->ipa_io[0].length == 8) {
114: sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h;
115: sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h;
116: } else {
117: sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h;
118: sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h;
119: }
120: sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
121: sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh;
122:
123: sc->sc_ic = ipa->ia_ic;
124: sc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num,
125: ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel,
126: sc->sc_wdcdev.sc_dev.dv_xname);
127:
128: #ifdef notyet
129: if (ipa->ipa_ndrq > 0) {
130: sc->sc_drq = ipa->ipa_drq[0].num;
131:
132: sc->sc_ad.cap |= WDC_CAPABILITY_DMA;
133: sc->sc_ad.dma_start = &wdc_isapnp_dma_start;
134: sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish;
135: wdc_isapnp_dma_setup(sc);
136: }
137: #endif
138: sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32;
139: sc->sc_wdcdev.PIO_cap = 0;
140: sc->wdc_chanptr = &sc->wdc_channel;
141: sc->sc_wdcdev.channels = &sc->wdc_chanptr;
142: sc->sc_wdcdev.nchannels = 1;
143: sc->wdc_channel.channel = 0;
144: sc->wdc_channel.wdc = &sc->sc_wdcdev;
145: sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue),
146: M_DEVBUF, M_NOWAIT);
147: if (sc->wdc_channel.ch_queue == NULL) {
148: printf(": can't allocate memory for command queue\n");
149: return;
150: }
151:
152: printf("\n");
153: wdcattach(&sc->wdc_channel);
154: wdc_print_current_modes(&sc->wdc_channel);
155: }
156:
157: #ifdef notyet
158: static void
159: wdc_isapnp_dma_setup(sc)
160: struct wdc_isapnp_softc *sc;
161: {
162:
163: if (isa_dmamap_create(sc->sc_ic, sc->sc_drq,
164: MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
165: printf("%s: can't create map for drq %d\n",
166: sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq);
167: sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA;
168: }
169: }
170:
171: static void
172: wdc_isapnp_dma_start(scv, buf, size, read)
173: void *scv, *buf;
174: size_t size;
175: int read;
176: {
177: struct wdc_isapnp_softc *sc = scv;
178:
179: isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL,
180: (read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND,
181: BUS_DMA_NOWAIT);
182: }
183:
184: static void
185: wdc_isapnp_dma_finish(scv)
186: void *scv;
187: {
188: struct wdc_isapnp_softc *sc = scv;
189:
190: isa_dmadone(sc->sc_ic, sc->sc_drq);
191: }
192: #endif
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to wdc_isapnp.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / dev / isa