Add FAT16 library

[rmslog.git] / FAT16 / sd_raw_config.h

diff --git a/FAT16/sd_raw_config.h b/FAT16/sd_raw_config.h
new file mode 100644 (file)
index 0000000..afe6969
--- /dev/null
+++ b/FAT16/sd_raw_config.h
@@ -0,0 +1,146 @@
+
+/*
+ * Copyright (c) 2006-2009 by Roland Riegel <feedback@roland-riegel.de>
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of either the GNU General Public License version 2
+ * or the GNU Lesser General Public License version 2.1, both as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef SD_RAW_CONFIG_H
+#define SD_RAW_CONFIG_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/**
+ * \addtogroup sd_raw
+ *
+ * @{
+ */
+/**
+ * \file
+ * MMC/SD support configuration (license: GPLv2 or LGPLv2.1)
+ */
+
+/**
+ * \ingroup sd_raw_config
+ * Controls MMC/SD write support.
+ *
+ * Set to 1 to enable MMC/SD write support, set to 0 to disable it.
+ */
+#define SD_RAW_WRITE_SUPPORT 1
+
+/**
+ * \ingroup sd_raw_config
+ * Controls MMC/SD write buffering.
+ *
+ * Set to 1 to buffer write accesses, set to 0 to disable it.
+ *
+ * \note This option has no effect when SD_RAW_WRITE_SUPPORT is 0.
+ */
+#define SD_RAW_WRITE_BUFFERING 1
+
+/**
+ * \ingroup sd_raw_config
+ * Controls MMC/SD access buffering.
+ * 
+ * Set to 1 to save static RAM, but be aware that you will
+ * lose performance.
+ *
+ * \note When SD_RAW_WRITE_SUPPORT is 1, SD_RAW_SAVE_RAM will
+ *       be reset to 0.
+ */
+#define SD_RAW_SAVE_RAM 1
+
+/**
+ * \ingroup sd_raw_config
+ * Controls support for SDHC cards.
+ *
+ * Set to 1 to support so-called SDHC memory cards, i.e. SD
+ * cards with more than 2 gigabytes of memory.
+ */
+#define SD_RAW_SDHC 0
+
+/**
+ * @}
+ */
+
+/* defines for customisation of sd/mmc port access */
+/*#if defined(__AVR_ATmega8__) || \
+    defined(__AVR_ATmega48__) || \
+    defined(__AVR_ATmega88__) || \
+    defined(__AVR_ATmega168__) || \
+    defined(__AVR_ATmega328__) || \
+       defined(__AVR_atmega328p__)
+*/
+    #define configure_pin_mosi() DDRB |= (1 << DDB3)
+    #define configure_pin_sck() DDRB |= (1 << DDB5)
+    #define configure_pin_ss() DDRB |= (1 << DDB0)
+    #define configure_pin_miso() DDRB &= ~(1 << DDB4)
+
+    #define select_card() PORTB &= ~(1 << PINB0)
+    #define unselect_card() PORTB |= (1 << PINB0)
+/*
+#elif defined(__AVR_ATmega16__) || \
+      defined(__AVR_ATmega32__)
+    #define configure_pin_mosi() DDRB |= (1 << DDB5)
+    #define configure_pin_sck() DDRB |= (1 << DDB7)
+    #define configure_pin_ss() DDRB |= (1 << DDB4)
+    #define configure_pin_miso() DDRB &= ~(1 << DDB6)
+
+    #define select_card() PORTB &= ~(1 << PB4)
+    #define unselect_card() PORTB |= (1 << PB4)
+#elif defined(__AVR_ATmega64__) || \
+      defined(__AVR_ATmega128__) || \
+      defined(__AVR_ATmega169__)
+    #define configure_pin_mosi() DDRB |= (1 << DDB2)
+    #define configure_pin_sck() DDRB |= (1 << DDB1)
+    #define configure_pin_ss() DDRB |= (1 << DDB0)
+    #define configure_pin_miso() DDRB &= ~(1 << DDB3)
+
+    #define select_card() PORTB &= ~(1 << PB0)
+    #define unselect_card() PORTB |= (1 << PB0)
+#else
+    #error "no sd/mmc pin mapping available!"
+#endif
+*/
+/*
+#define configure_pin_available() DDRC &= ~(1 << DDC4)
+#define configure_pin_locked() DDRC &= ~(1 << DDC5)
+
+#define get_pin_available() ((PINC >> PINC4) & 0x01)
+#define get_pin_locked() ((PINC >> PINC5) & 0x01)
+*/
+#define configure_pin_available() //NOTHING
+#define configure_pin_locked() //Nothing
+
+#define get_pin_available() 0
+#define get_pin_locked() 1
+
+#if SD_RAW_SDHC
+    typedef uint64_t offset_t;
+#else
+    typedef uint32_t offset_t;
+#endif
+
+/* configuration checks */
+#if SD_RAW_WRITE_SUPPORT
+#undef SD_RAW_SAVE_RAM
+#define SD_RAW_SAVE_RAM 0
+#else
+#undef SD_RAW_WRITE_BUFFERING
+#define SD_RAW_WRITE_BUFFERING 0
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+