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armadillo9_pcic.c revision 1.1 
      1 /*	$NetBSD: armadillo9_pcic.c,v 1.1 2005/11/13 06:33:05 hamajima 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 1.1 2005/11/13 06:33:05 hamajima 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 struct armadillo9pcic_softc {
     47 	struct eppcic_softc	sc_dev;
     48 };
     49 
     50 static int armadillo9pcic_match(struct device *, struct cfdata *, void *);
     51 static void armadillo9pcic_attach(struct device *, struct device *, void *);
     52 
     53 CFATTACH_DECL(armadillo9pcic, sizeof(struct armadillo9pcic_softc),
     54 	      armadillo9pcic_match, armadillo9pcic_attach, NULL, NULL);
     55 
     56 static int armadillo9pcic_card_mode(void *, int);
     57 static int armadillo9pcic_power_capability(void *, int);
     58 static int armadillo9pcic_power_ctl(void *, int, int);
     59 
     60 struct eppcic_chipset_tag armadillo9pcic_tag = {
     61 	armadillo9pcic_card_mode,
     62 	armadillo9pcic_power_capability,
     63 	armadillo9pcic_power_ctl
     64 };
     65 
     66 static int
     67 armadillo9pcic_match(struct device *parent, struct cfdata *match, void *aux)
     68 {
     69 	return 1;
     70 }
     71 
     72 static void
     73 armadillo9pcic_attach(struct device *parent, struct device *self, void *aux)
     74 {
     75 	struct epsoc_attach_args *sa = aux;
     76 
     77 	epgpio_out(sa->sa_gpio, PORT_A, 3);
     78 	eppcic_attach_common(parent, self, aux, &armadillo9pcic_tag);
     79 }
     80 
     81 static int
     82 armadillo9pcic_card_mode(void *self, int socket)
     83 {
     84 	if (socket == 0)
     85 		return CF_MODE;
     86 	else
     87 		return SLOT_DISABLE;
     88 }
     89 
     90 static int
     91 armadillo9pcic_power_capability(void *self, int socket)
     92 {
     93 	int vcc = 0;
     94 
     95 	if (socket == 0)
     96 		vcc |= VCC_3V;
     97 	return vcc;
     98 }
     99 
    100 static int
    101 armadillo9pcic_power_ctl(void *self, int socket, int onoff)
    102 {
    103 	struct eppcic_softc *sc = (struct eppcic_softc *)self;
    104 
    105 	DPRINTFN(1, ("armadillo9pcic_power_ctl: %s\n",onoff?"on":"off"));
    106 
    107 	if (onoff)
    108 		epgpio_clear(sc->sc_gpio, PORT_A, 3);
    109 	else
    110 		epgpio_set(sc->sc_gpio, PORT_A, 3);
    111 	return (300 * 1000);
    112 }
    113