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w83l518d.c revision 1.2 
      1 /* $NetBSD: w83l518d.c,v 1.2 2010/08/19 14:58:22 jmcneill Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2009 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     20  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     22  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     23  * 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: w83l518d.c,v 1.2 2010/08/19 14:58:22 jmcneill Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/kernel.h>
     33 #include <sys/systm.h>
     34 #include <sys/errno.h>
     35 #include <sys/ioctl.h>
     36 #include <sys/syslog.h>
     37 #include <sys/device.h>
     38 #include <sys/proc.h>
     39 
     40 #include <sys/bus.h>
     41 
     42 #include <dev/isa/isavar.h>
     43 #include <dev/isa/isadmavar.h>
     44 
     45 #include <dev/ic/w83l518dreg.h>
     46 #include <dev/ic/w83l518dvar.h>
     47 #include <dev/ic/w83l518d_sdmmc.h>
     48 
     49 uint8_t
     50 wb_idx_read(struct wb_softc *wb, uint8_t reg)
     51 {
     52 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, WB_SD_INDEX, reg);
     53 	return bus_space_read_1(wb->wb_iot, wb->wb_ioh, WB_SD_DATA);
     54 }
     55 
     56 void
     57 wb_idx_write(struct wb_softc *wb, uint8_t reg, uint8_t val)
     58 {
     59 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, WB_SD_INDEX, reg);
     60 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, WB_SD_DATA, val);
     61 }
     62 
     63 uint8_t
     64 wb_read(struct wb_softc *wb, uint8_t reg)
     65 {
     66 	return bus_space_read_1(wb->wb_iot, wb->wb_ioh, reg);
     67 }
     68 
     69 void
     70 wb_write(struct wb_softc *wb, uint8_t reg, uint8_t val)
     71 {
     72 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, reg, val);
     73 }
     74 
     75 void
     76 wb_led(struct wb_softc *wb, bool enable)
     77 {
     78 	uint8_t val;
     79 
     80 	val = wb_read(wb, WB_SD_CSR);
     81 	if (enable)
     82 		val |= WB_CSR_MS_LED;
     83 	else
     84 		val &= ~WB_CSR_MS_LED;
     85 	wb_write(wb, WB_SD_CSR, val);
     86 }
     87 
     88 void
     89 wb_attach(struct wb_softc *wb)
     90 {
     91 	switch (wb->wb_type) {
     92 	case WB_DEVNO_SD:
     93 		aprint_verbose_dev(wb->wb_dev,
     94 		    "SD/MMC Reader\n");
     95 		wb_sdmmc_attach(wb);
     96 		break;
     97 	case WB_DEVNO_MS:
     98 		aprint_verbose_dev(wb->wb_dev,
     99 		    "Memory Stick Reader (not supported)\n");
    100 		break;
    101 	case WB_DEVNO_SC:
    102 		aprint_verbose_dev(wb->wb_dev,
    103 		    "Smart Card Reader (not supported)\n");
    104 		break;
    105 	case WB_DEVNO_GPIO:
    106 		aprint_verbose_dev(wb->wb_dev,
    107 		    "GPIO (not supported)\n");
    108 		break;
    109 	}
    110 }
    111 
    112 int
    113 wb_detach(struct wb_softc *wb, int flags)
    114 {
    115 	switch (wb->wb_type) {
    116 	case WB_DEVNO_SD:
    117 		wb_sdmmc_detach(wb, flags);
    118 		break;
    119 	}
    120 
    121 	return 0;
    122 }
    123 
    124 /*
    125  * intr handler
    126  */
    127 int
    128 wb_intr(void *opaque)
    129 {
    130 	struct wb_softc *wb = opaque;
    131 
    132 	switch (wb->wb_type) {
    133 	case WB_DEVNO_SD:
    134 		return wb_sdmmc_intr(wb);
    135 		break;
    136 	}
    137 
    138 	return 0;
    139 }
    140 
    141 /*
    142  * pmf
    143  */
    144 bool
    145 wb_suspend(struct wb_softc *wb)
    146 {
    147 	if (wb->wb_type == WB_DEVNO_SD)
    148 		return wb_sdmmc_suspend(wb);
    149 
    150 	return false;
    151 }
    152 
    153 bool
    154 wb_resume(struct wb_softc *wb)
    155 {
    156 	if (wb->wb_type == WB_DEVNO_SD)
    157 		return wb_sdmmc_resume(wb);
    158 
    159 	return false;
    160 }
    161