sys/dev/ic/w83l518d.c

   1 /* $NetBSD$ */
   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, "$NetBSD$");
  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 }