From c0a5a67387c4eec3db3bad4da77ba5126faf03c4 Mon Sep 17 00:00:00 2001
From: Frank Gevaerts <frank@gevaerts.be>
Date: Fri, 17 Jul 2009 22:28:49 +0000
Subject: Commit FS#9545, storage cleanup and multi-driver support

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21933 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/storage.c | 545 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 545 insertions(+)
 create mode 100644 firmware/storage.c

(limited to 'firmware/storage.c')

diff --git a/firmware/storage.c b/firmware/storage.c
new file mode 100644
index 0000000000..1528d03919
--- /dev/null
+++ b/firmware/storage.c
@@ -0,0 +1,545 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: buffer.c 17847 2008-06-28 18:10:04Z bagder $
+ *
+ * Copyright (C) 2008 by Frank Gevaerts
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "storage.h"
+
+#define DRIVER_MASK     0xff000000
+#define DRIVER_OFFSET   24
+#define DRIVE_MASK      0x00ff0000
+#define DRIVE_OFFSET    16
+#define PARTITION_MASK  0x0000ff00
+
+static unsigned int storage_drivers[NUM_DRIVES];
+static unsigned int num_drives;
+
+int storage_num_drives(void)
+{
+    return num_drives;
+}
+
+int storage_init(void)
+{
+    int rc=0;
+    int i;
+    num_drives=0;
+    
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    if ((rc=ata_init())) return rc;
+    
+    int ata_drives = ata_num_drives(num_drives);
+    for (i=0; i<ata_drives; i++)
+    {
+        storage_drivers[num_drives++] = 
+            (STORAGE_ATA<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
+    }
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    if ((rc=mmc_init())) return rc;
+    
+    int mmc_drives = mmc_num_drives(num_drives);
+    for (i=0; i<mmc_drives ;i++)
+    {
+        storage_drivers[num_drives++] =
+            (STORAGE_MMC<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
+    }
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    if ((rc=sd_init())) return rc;
+    
+    int sd_drives = sd_num_drives(num_drives);
+    for (i=0; i<sd_drives; i++)
+    {
+        storage_drivers[num_drives++] =
+            (STORAGE_SD<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
+    }
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    if ((rc=nand_init())) return rc;
+    
+    int nand_drives = nand_num_drives(num_drives);
+    for (i=0; i<nand_drives; i++)
+    {
+        storage_drivers[num_drives++] =
+            (STORAGE_NAND<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
+    }
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    if ((rc=ramdisk_init())) return rc;
+    
+    int ramdisk_drives = ramdisk_num_drives(num_drives);
+    for (i=0; i<ramdisk_drives; i++)
+    {
+        storage_drivers[num_drives++] =
+            (STORAGE_RAMDISK<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
+    }
+#endif
+
+    return 0;
+}
+
+int storage_read_sectors(int drive, unsigned long start, int count,
+                         void* buf)
+{
+    int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
+    int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
+    
+    switch (driver)
+    {
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    case STORAGE_ATA:
+        return ata_read_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    case STORAGE_MMC:
+        return mmc_read_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    case STORAGE_SD:
+        return sd_read_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    case STORAGE_NAND:
+        return nand_read_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    case STORAGE_RAMDISK:
+        return ramdisk_read_sectors(ldrive,start,count,buf);
+#endif
+    }
+    
+    return -1;
+}
+
+int storage_write_sectors(int drive, unsigned long start, int count,
+                          const void* buf)
+{
+    int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
+    int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
+    
+    switch (driver)
+    {
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    case STORAGE_ATA:
+        return ata_write_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    case STORAGE_MMC:
+        return mmc_write_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    case STORAGE_SD:
+        return sd_write_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    case STORAGE_NAND:
+        return nand_write_sectors(ldrive,start,count,buf);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    case STORAGE_RAMDISK:
+        return ramdisk_write_sectors(ldrive,start,count,buf);
+#endif
+    }
+    
+    return -1;
+}
+
+void storage_enable(bool on)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    ata_enable(on);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    mmc_enable(on);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    sd_enable(on);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    nand_enable(on);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    ramdisk_enable(on);
+#endif
+}
+
+void storage_sleep(void)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    ata_sleep();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    mmc_sleep();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    sd_sleep();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    nand_sleep();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    ramdisk_sleep();
+#endif
+}
+
+void storage_sleepnow(void)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    ata_sleepnow();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    mmc_sleepnow();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    //sd_sleepnow();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    nand_sleepnow();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    ramdisk_sleepnow();
+#endif
+}
+
+bool storage_disk_is_active(void)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    if (ata_disk_is_active()) return true;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    if (mmc_disk_is_active()) return true;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    //if (sd_disk_is_active()) return true;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    if (nand_disk_is_active()) return true;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    if (ramdisk_disk_is_active()) return true;
+#endif
+
+    return false;
+}
+
+int storage_soft_reset(void)
+{
+    int rc=0;
+    
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    if ((rc=ata_soft_reset())) return rc;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    if ((rc=mmc_soft_reset())) return rc;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    //if ((rc=sd_soft_reset())) return rc;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    if ((rc=nand_soft_reset())) return rc;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    if ((rc=ramdisk_soft_reset())) return rc;
+#endif
+
+    return 0;
+}
+
+void storage_spin(void)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    ata_spin();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    mmc_spin();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    sd_spin();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    nand_spin();
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    ramdisk_spin();
+#endif
+}
+
+void storage_spindown(int seconds)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    ata_spindown(seconds);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    mmc_spindown(seconds);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    sd_spindown(seconds);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    nand_spindown(seconds);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    ramdisk_spindown(seconds);
+#endif
+}
+
+#if (CONFIG_LED == LED_REAL)
+void storage_set_led_enabled(bool enabled)
+{
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    ata_set_led_enabled(enabled);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    mmc_set_led_enabled(enabled);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    sd_set_led_enabled(enabled);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    nand_set_led_enabled(enabled);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    ramdisk_set_led_enabled(enabled);
+#endif
+}
+#endif /* CONFIG_LED == LED_REAL */
+
+long storage_last_disk_activity(void)
+{
+    long max=0;
+    long t;
+    
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    t=ata_last_disk_activity();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    t=mmc_last_disk_activity();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    t=sd_last_disk_activity();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    t=nand_last_disk_activity();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    t=ramdisk_last_disk_activity();
+    if (t>max) max=t;
+#endif
+
+    return max;
+}
+
+int storage_spinup_time(void)
+{
+    int max=0;
+    int t;
+    
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    t=ata_spinup_time();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    t=mmc_spinup_time();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    //t=sd_spinup_time();
+    //if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    t=nand_spinup_time();
+    if (t>max) max=t;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    t=ramdisk_spinup_time();
+    if (t>max) max=t;
+#endif
+
+    return max;
+}
+
+#ifdef STORAGE_GET_INFO
+void storage_get_info(int drive, struct storage_info *info)
+{
+    int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
+    int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
+    
+    switch(driver)
+    {
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    case STORAGE_ATA:
+        return ata_get_info(ldrive,info);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    case STORAGE_MMC:
+        return mmc_get_info(ldrive,info);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    case STORAGE_SD:
+        return sd_get_info(ldrive,info);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    case STORAGE_NAND:
+        return nand_get_info(ldrive,info);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    case STORAGE_RAMDISK:
+        return ramdisk_get_info(ldrive,info);
+#endif
+    }
+}
+#endif /* STORAGE_GET_INFO */
+
+#ifdef HAVE_HOTSWAP
+bool storage_removable(int drive)
+{
+    bool ret = false;
+    
+    int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
+    int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
+    
+    switch(driver)
+    {
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    case STORAGE_ATA:
+        ret = ata_removable(ldrive);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    case STORAGE_MMC:
+        ret = mmc_removable(ldrive);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    case STORAGE_SD:
+        ret = sd_removable(ldrive);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    case STORAGE_NAND:
+        ret = false;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    case STORAGE_RAMDISK:
+        ret = false;
+#endif
+    }
+    
+    return ret;
+}
+
+bool storage_present(int drive)
+{
+    bool ret = false;
+    
+    int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
+    int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
+    
+    switch(driver)
+    {
+#if (CONFIG_STORAGE & STORAGE_ATA)
+    case STORAGE_ATA:
+        ret = ata_present(ldrive);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_MMC)
+    case STORAGE_MMC:
+        ret = mmc_present(ldrive);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_SD)
+    case STORAGE_SD:
+        ret = sd_present(ldrive);
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_NAND)
+    case STORAGE_NAND:
+        ret = true;
+#endif
+
+#if (CONFIG_STORAGE & STORAGE_RAMDISK)
+    case STORAGE_RAMDISK:
+        ret = true;
+#endif
+    }
+    
+    return ret;
+}
+#endif
-- 
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