1 files changed, 118 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/stm32/common/crc_common_all.h b/libopencm3/include/libopencm3/stm32/common/crc_common_all.h
new file mode 100644
index 0000000..4d16c20
--- /dev/null
+++ b/libopencm3/include/libopencm3/stm32/common/crc_common_all.h
@@ -0,0 +1,118 @@
+/** @addtogroup crc_defines
+
+@author @htmlonly &copy; @endhtmlonly 2010 Thomas Otto <tommi@viadmin.org>
+
+*/
+
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA CRC.H
+The order of header inclusion is important. crc.h includes the device
+specific memorymap.h header before including this header file.*/
+
+/** @cond */
+#ifdef LIBOPENCM3_CRC_H
+/** @endcond */
+#ifndef LIBOPENCM3_CRC_COMMON_ALL_H
+#define LIBOPENCM3_CRC_COMMON_ALL_H
+
+/**@{*/
+
+/*****************************************************************************/
+/* Module definitions                                                        */
+/*****************************************************************************/
+
+/*****************************************************************************/
+/* Register definitions                                                      */
+/*****************************************************************************/
+
+/* Data register (CRC_DR) */
+#define CRC_DR				MMIO32(CRC_BASE + 0x00)
+
+/* Independent data register (CRC_IDR) */
+#define CRC_IDR				MMIO32(CRC_BASE + 0x04)
+
+/* Control register (CRC_CR) */
+#define CRC_CR				MMIO32(CRC_BASE + 0x08)
+
+/*****************************************************************************/
+/* Register values                                                           */
+/*****************************************************************************/
+
+/* --- CRC_DR values ------------------------------------------------------- */
+
+/* Bits [31:0]: Data register */
+
+/* --- CRC_IDR values ------------------------------------------------------ */
+
+/* Bits [31:8]: Reserved */
+
+/* Bits [7:0]: General-purpose 8-bit data register bits */
+
+/* --- CRC_CR values ------------------------------------------------------- */
+
+/* Bits [31:1]: Reserved */
+
+/* RESET bit */
+#define CRC_CR_RESET			(1 << 0)
+
+/*****************************************************************************/
+/* API definitions                                                           */
+/*****************************************************************************/
+
+/*****************************************************************************/
+/* API Functions                                                             */
+/*****************************************************************************/
+
+BEGIN_DECLS
+
+/* TODO */
+
+/**
+ * Reset the CRC calculator to initial values.
+ */
+void crc_reset(void);
+
+/**
+ * Add a word to the CRC calculator and return the result.
+ * @param data new word to add to the CRC calculator
+ * @return final CRC calculator value
+ */
+uint32_t crc_calculate(uint32_t data);
+
+/**
+ * Add a block of data to the CRC calculator and return the final result
+ * @param datap pointer to the start of a block of 32bit data words
+ * @param size length of data, in 32bit increments
+ * @return final CRC calculator value
+ */
+uint32_t crc_calculate_block(uint32_t *datap, int size);
+
+END_DECLS
+
+/**@}*/
+
+#endif
+/** @cond */
+#else
+#warning "crc_common_all.h should not be included explicitly, only via crc.h"
+#endif
+/** @endcond */
+