firmware/target/arm/s5l8700/ata-nand-s5l8700.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 Dave Chapman
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "config.h"
  22 #include "ata_idle_notify.h"
  23 #include "system.h"
  24 #include <string.h>
  25 #include "thread.h"
  26 #include "disk.h"
  27 #include "storage.h"
  28 #include "panic.h"
  29 #include "usb.h"
  30 #include "ftl-target.h"
  31 #include "nand-target.h"
  32
  33 /** static, private data **/
  34 static bool initialized = false;
  35
  36 /* API Functions */
  37 int nand_read_sectors(IF_MD2(int drive,) unsigned long start, int incount,
  38                      void* inbuf)
  39 {
  40     return ftl_read(start, incount, inbuf);
  41 }
  42
  43 int nand_write_sectors(IF_MD2(int drive,) unsigned long start, int count,
  44                       const void* outbuf)
  45 {
  46     return ftl_write(start, count, outbuf);
  47 }
  48
  49 void nand_spindown(int seconds)
  50 {
  51     (void)seconds;
  52 }
  53
  54 void nand_sleep(void)
  55 {
  56     nand_power_down();
  57 }
  58
  59 void nand_sleepnow(void)
  60 {
  61     nand_power_down();
  62 }
  63
  64 void nand_spin(void)
  65 {
  66     nand_set_active();
  67 }
  68
  69 void nand_enable(bool on)
  70 {
  71     (void)on;
  72 }
  73
  74 void nand_get_info(IF_MD2(int drive,) struct storage_info *info)
  75 {
  76     uint32_t ppb = ftl_banks * (*ftl_nand_type).pagesperblock;
  77     (*info).sector_size = SECTOR_SIZE;
  78     (*info).num_sectors = (*ftl_nand_type).userblocks * ppb;
  79     (*info).vendor = "Apple";
  80     (*info).product = "iPod Nano 2G";
  81     (*info).revision = "1.0";
  82 }
  83
  84 long nand_last_disk_activity(void)
  85 {
  86     return nand_last_activity();
  87 }
  88
  89 #ifdef HAVE_STORAGE_FLUSH
  90 int nand_flush(void)
  91 {
  92     int rc = ftl_sync();
  93     if (rc != 0) panicf("Failed to unmount flash: %X", rc);
  94     return rc;
  95 }
  96 #endif
  97
  98 int nand_init(void)
  99 {
 100     if (ftl_init()) return 1;
 101
 102     initialized = true;
 103     return 0;
 104 }
 105
 106 #ifdef CONFIG_STORAGE_MULTI
 107 int nand_num_drives(int first_drive)
 108 {
 109     /* We don't care which logical drive number(s) we have been assigned */
 110     (void)first_drive;
 111
 112     return 1;
 113 }
 114 #endif