The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/w83l518d.c

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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@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 }

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