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      1 /* $NetBSD: w83l518d.c,v 1.3 2020/05/11 14:55:20 jdc 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 1.3 2020/05/11 14:55:20 jdc 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/ic/w83l518dreg.h>
     43 #include <dev/ic/w83l518dvar.h>
     44 #include <dev/ic/w83l518d_sdmmc.h>
     45 
     46 uint8_t
     47 wb_idx_read(struct wb_softc *wb, uint8_t reg)
     48 {
     49 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, WB_SD_INDEX, reg);
     50 	return bus_space_read_1(wb->wb_iot, wb->wb_ioh, WB_SD_DATA);
     51 }
     52 
     53 void
     54 wb_idx_write(struct wb_softc *wb, uint8_t reg, uint8_t val)
     55 {
     56 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, WB_SD_INDEX, reg);
     57 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, WB_SD_DATA, val);
     58 }
     59 
     60 uint8_t
     61 wb_read(struct wb_softc *wb, uint8_t reg)
     62 {
     63 	return bus_space_read_1(wb->wb_iot, wb->wb_ioh, reg);
     64 }
     65 
     66 void
     67 wb_write(struct wb_softc *wb, uint8_t reg, uint8_t val)
     68 {
     69 	bus_space_write_1(wb->wb_iot, wb->wb_ioh, reg, val);
     70 }
     71 
     72 void
     73 wb_led(struct wb_softc *wb, bool enable)
     74 {
     75 	uint8_t val;
     76 
     77 	val = wb_read(wb, WB_SD_CSR);
     78 	if (enable)
     79 		val |= WB_CSR_MS_LED;
     80 	else
     81 		val &= ~WB_CSR_MS_LED;
     82 	wb_write(wb, WB_SD_CSR, val);
     83 }
     84 
     85 void
     86 wb_attach(struct wb_softc *wb)
     87 {
     88 	switch (wb->wb_type) {
     89 	case WB_DEVNO_SD:
     90 		aprint_verbose_dev(wb->wb_dev,
     91 		    "SD/MMC Reader\n");
     92 		wb_sdmmc_attach(wb);
     93 		break;
     94 	case WB_DEVNO_MS:
     95 		aprint_verbose_dev(wb->wb_dev,
     96 		    "Memory Stick Reader (not supported)\n");
     97 		break;
     98 	case WB_DEVNO_SC:
     99 		aprint_verbose_dev(wb->wb_dev,
    100 		    "Smart Card Reader (not supported)\n");
    101 		break;
    102 	case WB_DEVNO_GPIO:
    103 		aprint_verbose_dev(wb->wb_dev,
    104 		    "GPIO (not supported)\n");
    105 		break;
    106 	}
    107 }
    108 
    109 int
    110 wb_detach(struct wb_softc *wb, int flags)
    111 {
    112 	switch (wb->wb_type) {
    113 	case WB_DEVNO_SD:
    114 		wb_sdmmc_detach(wb, flags);
    115 		break;
    116 	}
    117 
    118 	return 0;
    119 }
    120 
    121 /*
    122  * intr handler
    123  */
    124 int
    125 wb_intr(void *opaque)
    126 {
    127 	struct wb_softc *wb = opaque;
    128 
    129 	switch (wb->wb_type) {
    130 	case WB_DEVNO_SD:
    131 		return wb_sdmmc_intr(wb);
    132 		break;
    133 	}
    134 
    135 	return 0;
    136 }
    137 
    138 /*
    139  * pmf
    140  */
    141 bool
    142 wb_suspend(struct wb_softc *wb)
    143 {
    144 	if (wb->wb_type == WB_DEVNO_SD)
    145 		return wb_sdmmc_suspend(wb);
    146 
    147 	return false;
    148 }
    149 
    150 bool
    151 wb_resume(struct wb_softc *wb)
    152 {
    153 	if (wb->wb_type == WB_DEVNO_SD)
    154 		return wb_sdmmc_resume(wb);
    155 
    156 	return false;
    157 }
    158