From 1167e3c72f5d0d581b81fd2cb8f2580a1524ca5a Mon Sep 17 00:00:00 2001
From: Michael Sevakis <jethead71@rockbox.org>
Date: Sat, 30 Jun 2007 02:08:27 +0000
Subject: Accept FS#7134 - Sansa: external sd card support by Antonius Hellmann
 with some tweaks. All testers have given the green light. (Now for the RED ??
 ;).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13741 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/export/hotswap.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 firmware/export/hotswap.h

(limited to 'firmware/export/hotswap.h')

diff --git a/firmware/export/hotswap.h b/firmware/export/hotswap.h
new file mode 100644
index 0000000000..c6a657d731
--- /dev/null
+++ b/firmware/export/hotswap.h
@@ -0,0 +1,59 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2004 by Jens Arnold
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __HOTSWAP_H__
+#define __HOTSWAP_H__
+
+typedef struct
+{  
+    bool initialized;
+    unsigned char bitrate_register;
+    unsigned long read_timeout;   /* n * 8 clock cycles */
+    unsigned long write_timeout;  /* n * 8 clock cycles */
+
+    unsigned long ocr;            /* OCR register */
+    unsigned long csd[4];         /* CSD register, 16 bytes */
+    unsigned long cid[4];         /* CID register, 16 bytes */
+    unsigned long speed;          /* bit/s */
+    unsigned int nsac;            /* clock cycles */
+    unsigned long tsac;           /* n * 0.1 ns */
+    unsigned int r2w_factor;
+    unsigned long size;           /* size in bytes */
+    unsigned long numblocks;      /* size in flash blocks */
+    unsigned int blocksize;       /* block size in bytes */
+    unsigned int block_exp;       /* block size exponent */
+} tCardInfo;
+
+#ifdef TARGET_TREE
+bool       card_detect(void);
+tCardInfo *card_get_info(int card_no);
+#else /* HAVE_MMC */
+#include "ata_mmc.h"
+#define card_detect            mmc_detect
+#define card_get_info          mmc_card_info
+#define card_touched           mmc_touched
+#define card_enable_monitoring mmc_enable_monitoring
+#endif
+
+/* helper function to extract n (<=32) bits from an arbitrary position.
+   counting from MSB to LSB */
+unsigned long card_extract_bits(
+        const unsigned long *p, /* the start of the bitfield array */
+        unsigned int start,     /* bit no. to start reading  */
+        unsigned int size);     /* how many bits to read */
+#endif
-- 
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