1 /* $NetBSD: armadillo9_pcic.c,v 1.2 2012/10/27 17:17:46 chs Exp $ */
2
3 /*
4 * Copyright (c) 2005 HAMAJIMA Katsuomi. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: armadillo9_pcic.c,v 1.2 2012/10/27 17:17:46 chs Exp $");
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/device.h>
35 #include <arm/ep93xx/epsocvar.h>
36 #include <arm/ep93xx/epgpiovar.h>
37 #include <arm/ep93xx/eppcicvar.h>
38
39 #ifdef A9PCIC_DEBUG
40 int armadillo9pcic_debug = A9PCIC_DEBUG;
41 #define DPRINTFN(n,x) if (armadillo9pcic_debug>(n)) printf x;
42 #else
43 #define DPRINTFN(n,x)
44 #endif
45
46 static int armadillo9pcic_match(device_t, cfdata_t, void *);
47 static void armadillo9pcic_attach(device_t, device_t, void *);
48
49 CFATTACH_DECL_NEW(armadillo9pcic, 0,
50 armadillo9pcic_match, armadillo9pcic_attach, NULL, NULL);
51
52 static int armadillo9pcic_card_mode(void *, int);
53 static int armadillo9pcic_power_capability(void *, int);
54 static int armadillo9pcic_power_ctl(void *, int, int);
55
56 struct eppcic_chipset_tag armadillo9pcic_tag = {
57 armadillo9pcic_card_mode,
58 armadillo9pcic_power_capability,
59 armadillo9pcic_power_ctl
60 };
61
62 static int
armadillo9pcic_match(device_t parent,cfdata_t match,void * aux)63 armadillo9pcic_match(device_t parent, cfdata_t match, void *aux)
64 {
65 return 1;
66 }
67
68 static void
armadillo9pcic_attach(device_t parent,device_t self,void * aux)69 armadillo9pcic_attach(device_t parent, device_t self, void *aux)
70 {
71 struct epsoc_attach_args *sa = aux;
72
73 epgpio_out(sa->sa_gpio, PORT_A, 3);
74 eppcic_attach_common(parent, self, aux, &armadillo9pcic_tag);
75 }
76
77 static int
armadillo9pcic_card_mode(void * self,int socket)78 armadillo9pcic_card_mode(void *self, int socket)
79 {
80 if (socket == 0)
81 return CF_MODE;
82 else
83 return SLOT_DISABLE;
84 }
85
86 static int
armadillo9pcic_power_capability(void * self,int socket)87 armadillo9pcic_power_capability(void *self, int socket)
88 {
89 int vcc = 0;
90
91 if (socket == 0)
92 vcc |= VCC_3V;
93 return vcc;
94 }
95
96 static int
armadillo9pcic_power_ctl(void * self,int socket,int onoff)97 armadillo9pcic_power_ctl(void *self, int socket, int onoff)
98 {
99 struct eppcic_softc *sc = device_private(self);
100
101 DPRINTFN(1, ("armadillo9pcic_power_ctl: %s\n",onoff?"on":"off"));
102
103 if (onoff)
104 epgpio_clear(sc->sc_gpio, PORT_A, 3);
105 else
106 epgpio_set(sc->sc_gpio, PORT_A, 3);
107 return (300 * 1000);
108 }
109