ali1543.c revision 1.2.2.3 1 1.2.2.3 nathanw /* $NetBSD: ali1543.c,v 1.2.2.3 2002/01/08 00:25:40 nathanw Exp $ */
2 1.2.2.2 nathanw
3 1.2.2.2 nathanw /*
4 1.2.2.2 nathanw * Copyright (c) 2001
5 1.2.2.2 nathanw * HAYAKAWA Koichi. All rights reserved.
6 1.2.2.2 nathanw *
7 1.2.2.2 nathanw * Redistribution and use in source and binary forms, with or without
8 1.2.2.2 nathanw * modification, are permitted provided that the following conditions
9 1.2.2.2 nathanw * are met:
10 1.2.2.2 nathanw * 1. Redistributions of source code must retain the above copyright
11 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer.
12 1.2.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright
13 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer in the
14 1.2.2.2 nathanw * documentation and/or other materials provided with the distribution.
15 1.2.2.2 nathanw * 3. The name of the author may not be used to endorse or promote products
16 1.2.2.2 nathanw * derived from this software without specific prior written permission.
17 1.2.2.2 nathanw *
18 1.2.2.2 nathanw *
19 1.2.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 1.2.2.2 nathanw * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 1.2.2.2 nathanw * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 1.2.2.2 nathanw * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
23 1.2.2.2 nathanw * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 1.2.2.2 nathanw * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 1.2.2.2 nathanw * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 1.2.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 1.2.2.2 nathanw * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 1.2.2.2 nathanw * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.2.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE.
30 1.2.2.2 nathanw */
31 1.2.2.2 nathanw
32 1.2.2.2 nathanw /*-
33 1.2.2.2 nathanw * Copyright (c) 1999 The NetBSD Foundation, Inc.
34 1.2.2.2 nathanw * All rights reserved.
35 1.2.2.2 nathanw *
36 1.2.2.2 nathanw * This code is derived from software contributed to The NetBSD Foundation
37 1.2.2.2 nathanw * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
38 1.2.2.2 nathanw * NASA Ames Research Center.
39 1.2.2.2 nathanw *
40 1.2.2.2 nathanw * Redistribution and use in source and binary forms, with or without
41 1.2.2.2 nathanw * modification, are permitted provided that the following conditions
42 1.2.2.2 nathanw * are met:
43 1.2.2.2 nathanw * 1. Redistributions of source code must retain the above copyright
44 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer.
45 1.2.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright
46 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer in the
47 1.2.2.2 nathanw * documentation and/or other materials provided with the distribution.
48 1.2.2.2 nathanw * 3. All advertising materials mentioning features or use of this software
49 1.2.2.2 nathanw * must display the following acknowledgement:
50 1.2.2.2 nathanw * This product includes software developed by the NetBSD
51 1.2.2.2 nathanw * Foundation, Inc. and its contributors.
52 1.2.2.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its
53 1.2.2.2 nathanw * contributors may be used to endorse or promote products derived
54 1.2.2.2 nathanw * from this software without specific prior written permission.
55 1.2.2.2 nathanw *
56 1.2.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
57 1.2.2.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
58 1.2.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
59 1.2.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
60 1.2.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
61 1.2.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
62 1.2.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
63 1.2.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
64 1.2.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
65 1.2.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
66 1.2.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE.
67 1.2.2.2 nathanw */
68 1.2.2.2 nathanw
69 1.2.2.2 nathanw /*
70 1.2.2.2 nathanw * Copyright (c) 1999, by UCHIYAMA Yasushi
71 1.2.2.2 nathanw * All rights reserved.
72 1.2.2.2 nathanw *
73 1.2.2.2 nathanw * Redistribution and use in source and binary forms, with or without
74 1.2.2.2 nathanw * modification, are permitted provided that the following conditions
75 1.2.2.2 nathanw * are met:
76 1.2.2.2 nathanw * 1. Redistributions of source code must retain the above copyright
77 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer.
78 1.2.2.2 nathanw * 2. The name of the developer may NOT be used to endorse or promote products
79 1.2.2.2 nathanw * derived from this software without specific prior written permission.
80 1.2.2.2 nathanw *
81 1.2.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
82 1.2.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
83 1.2.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
84 1.2.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
85 1.2.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
86 1.2.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
87 1.2.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
88 1.2.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
89 1.2.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
90 1.2.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
91 1.2.2.2 nathanw * SUCH DAMAGE.
92 1.2.2.2 nathanw */
93 1.2.2.2 nathanw
94 1.2.2.2 nathanw /* HAYAKAWA Koichi wrote ALi 1543 PCI ICU code basing on VIA82C586 driver */
95 1.2.2.2 nathanw
96 1.2.2.3 nathanw #include <sys/cdefs.h>
97 1.2.2.3 nathanw __KERNEL_RCSID(0, "$NetBSD: ali1543.c,v 1.2.2.3 2002/01/08 00:25:40 nathanw Exp $");
98 1.2.2.3 nathanw
99 1.2.2.2 nathanw #include <sys/param.h>
100 1.2.2.2 nathanw #include <sys/systm.h>
101 1.2.2.2 nathanw #include <sys/errno.h>
102 1.2.2.2 nathanw #include <sys/device.h>
103 1.2.2.2 nathanw #include <sys/malloc.h>
104 1.2.2.2 nathanw #include <sys/proc.h>
105 1.2.2.2 nathanw
106 1.2.2.2 nathanw #include <machine/intr.h>
107 1.2.2.2 nathanw #include <machine/bus.h>
108 1.2.2.2 nathanw
109 1.2.2.2 nathanw #include <dev/pci/pcivar.h>
110 1.2.2.2 nathanw #include <dev/pci/pcireg.h>
111 1.2.2.2 nathanw #include <dev/pci/pcidevs.h>
112 1.2.2.2 nathanw
113 1.2.2.2 nathanw #include <i386/pci/pci_intr_fixup.h>
114 1.2.2.2 nathanw #include <i386/pci/piixvar.h>
115 1.2.2.2 nathanw
116 1.2.2.2 nathanw
117 1.2.2.2 nathanw int ali1543_getclink (pciintr_icu_handle_t, int, int *);
118 1.2.2.2 nathanw int ali1543_get_intr (pciintr_icu_handle_t, int, int *);
119 1.2.2.2 nathanw int ali1543_set_intr (pciintr_icu_handle_t, int, int);
120 1.2.2.2 nathanw
121 1.2.2.2 nathanw
122 1.2.2.2 nathanw const struct pciintr_icu ali1543_icu = {
123 1.2.2.2 nathanw ali1543_getclink,
124 1.2.2.2 nathanw ali1543_get_intr,
125 1.2.2.2 nathanw ali1543_set_intr,
126 1.2.2.2 nathanw piix_get_trigger,
127 1.2.2.2 nathanw piix_set_trigger,
128 1.2.2.2 nathanw };
129 1.2.2.2 nathanw
130 1.2.2.2 nathanw
131 1.2.2.2 nathanw /*
132 1.2.2.2 nathanw * Linux source code (linux/arch/i386/kernel/pci-irq.c) says that the
133 1.2.2.2 nathanw * irq order of ALi PCI ICU is shuffled.
134 1.2.2.2 nathanw */
135 1.2.2.2 nathanw const static int ali1543_intr_shuffle_get[16] = {
136 1.2.2.2 nathanw 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15
137 1.2.2.2 nathanw };
138 1.2.2.2 nathanw const static int ali1543_intr_shuffle_set[16] = {
139 1.2.2.2 nathanw 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15
140 1.2.2.2 nathanw };
141 1.2.2.2 nathanw
142 1.2.2.2 nathanw #define ALI1543_IRQ_MASK 0xdefa
143 1.2.2.2 nathanw
144 1.2.2.2 nathanw #define ALI1543_LEGAL_LINK(link) (((link) >= 0) && ((link) <= 7))
145 1.2.2.2 nathanw #define ALI1543_LEGAL_IRQ(irq) ((1 << (irq)) & ALI1543_IRQ_MASK)
146 1.2.2.2 nathanw
147 1.2.2.2 nathanw #define ALI1543_INTR_CFG_REG 0x48
148 1.2.2.2 nathanw
149 1.2.2.2 nathanw #define ALI1543_INTR_PIRQA_SHIFT 0
150 1.2.2.2 nathanw #define ALI1543_INTR_PIRQA_MASK 0x0000000f
151 1.2.2.2 nathanw #define ALI1543_INTR_PIRQB_SHIFT 4
152 1.2.2.2 nathanw #define ALI1543_INTR_PIRQB_MASK 0x000000f0
153 1.2.2.2 nathanw #define ALI1543_INTR_PIRQC_SHIFT 8
154 1.2.2.2 nathanw #define ALI1543_INTR_PIRQC_MASK 0x00000f00
155 1.2.2.2 nathanw #define ALI1543_INTR_PIRQD_SHIFT 12
156 1.2.2.2 nathanw #define ALI1543_INTR_PIRQD_MASK 0x0000f000
157 1.2.2.2 nathanw
158 1.2.2.2 nathanw #define ALI1543_INTR_PIRQ_SHIFT(clink) ((clink)*4)
159 1.2.2.2 nathanw #define ALI1543_INTR_PIRQ_IRQ(reg, clink) \
160 1.2.2.2 nathanw (((reg) >> ((clink)*4)) & 0x0f)
161 1.2.2.2 nathanw #define ALI1543_PIRQ(reg, clink) \
162 1.2.2.2 nathanw ali1543_intr_shuffle_get[ALI1543_INTR_PIRQ_IRQ((reg), (clink))]
163 1.2.2.2 nathanw
164 1.2.2.2 nathanw
165 1.2.2.2 nathanw int
166 1.2.2.2 nathanw ali1543_init(pci_chipset_tag_t pc, bus_space_tag_t iot, pcitag_t tag,
167 1.2.2.2 nathanw pciintr_icu_tag_t *ptagp, pciintr_icu_handle_t *phandp)
168 1.2.2.2 nathanw {
169 1.2.2.2 nathanw
170 1.2.2.2 nathanw if (piix_init(pc, iot, tag, ptagp, phandp) == 0) {
171 1.2.2.2 nathanw *ptagp = &ali1543_icu;
172 1.2.2.2 nathanw
173 1.2.2.2 nathanw return (0);
174 1.2.2.2 nathanw }
175 1.2.2.2 nathanw
176 1.2.2.2 nathanw return (1);
177 1.2.2.2 nathanw }
178 1.2.2.2 nathanw
179 1.2.2.2 nathanw int
180 1.2.2.2 nathanw ali1543_getclink(pciintr_icu_handle_t v, int link, int *clinkp)
181 1.2.2.2 nathanw {
182 1.2.2.2 nathanw
183 1.2.2.2 nathanw if (ALI1543_LEGAL_LINK(link - 1)) {
184 1.2.2.2 nathanw *clinkp = link - 1;
185 1.2.2.2 nathanw return (0);
186 1.2.2.2 nathanw }
187 1.2.2.2 nathanw
188 1.2.2.2 nathanw return (1);
189 1.2.2.2 nathanw }
190 1.2.2.2 nathanw
191 1.2.2.2 nathanw int
192 1.2.2.2 nathanw ali1543_get_intr(pciintr_icu_handle_t v, int clink, int *irqp)
193 1.2.2.2 nathanw {
194 1.2.2.2 nathanw struct piix_handle *ph = v;
195 1.2.2.2 nathanw pcireg_t reg;
196 1.2.2.2 nathanw int val;
197 1.2.2.2 nathanw
198 1.2.2.2 nathanw if (ALI1543_LEGAL_LINK(clink) == 0)
199 1.2.2.2 nathanw return (1);
200 1.2.2.2 nathanw
201 1.2.2.2 nathanw reg = pci_conf_read(ph->ph_pc, ph->ph_tag, ALI1543_INTR_CFG_REG);
202 1.2.2.2 nathanw #ifdef DEBUG_1543
203 1.2.2.2 nathanw printf("ali1543: PIRQ reg 0x%08x\n", reg); /* XXX debug */
204 1.2.2.2 nathanw #endif /* DEBUG_1543 */
205 1.2.2.2 nathanw val = ALI1543_PIRQ(reg, clink);
206 1.2.2.2 nathanw *irqp = (val == 0) ?
207 1.2.2.2 nathanw I386_PCI_INTERRUPT_LINE_NO_CONNECTION : val;
208 1.2.2.2 nathanw
209 1.2.2.2 nathanw return (0);
210 1.2.2.2 nathanw }
211 1.2.2.2 nathanw
212 1.2.2.2 nathanw int
213 1.2.2.2 nathanw ali1543_set_intr(pciintr_icu_handle_t v, int clink, int irq)
214 1.2.2.2 nathanw {
215 1.2.2.2 nathanw struct piix_handle *ph = v;
216 1.2.2.2 nathanw int shift, val;
217 1.2.2.2 nathanw pcireg_t reg;
218 1.2.2.2 nathanw
219 1.2.2.2 nathanw if (ALI1543_LEGAL_LINK(clink) == 0 || ALI1543_LEGAL_IRQ(irq) == 0)
220 1.2.2.2 nathanw return (1);
221 1.2.2.2 nathanw
222 1.2.2.2 nathanw reg = pci_conf_read(ph->ph_pc, ph->ph_tag, ALI1543_INTR_CFG_REG);
223 1.2.2.2 nathanw ali1543_get_intr(v, clink, &val);
224 1.2.2.2 nathanw shift = ALI1543_INTR_PIRQ_SHIFT(clink);
225 1.2.2.2 nathanw reg &= ~(0x0f << shift);
226 1.2.2.2 nathanw reg |= (ali1543_intr_shuffle_set[irq] << shift);
227 1.2.2.2 nathanw pci_conf_write(ph->ph_pc, ph->ph_tag, ALI1543_INTR_CFG_REG, reg);
228 1.2.2.2 nathanw if (ali1543_get_intr(v, clink, &val) != 0 || val != irq)
229 1.2.2.2 nathanw return (1);
230 1.2.2.2 nathanw
231 1.2.2.2 nathanw return (0);
232 1.2.2.2 nathanw }
233