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      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
     63 armadillo9pcic_match(device_t parent, cfdata_t match, void *aux)
     64 {
     65 	return 1;
     66 }
     67 
     68 static void
     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
     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
     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
     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