Add first implementation of hsmci controller for sam3x.

[bertos.git] / bertos / cpu / cortex-m3 / drv / hsmci_sam3.h

diff --git a/bertos/cpu/cortex-m3/drv/hsmci_sam3.h b/bertos/cpu/cortex-m3/drv/hsmci_sam3.h
new file mode 100644 (file)
index 0000000..4f27843
--- /dev/null
+++ b/bertos/cpu/cortex-m3/drv/hsmci_sam3.h
@@ -0,0 +1,78 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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 program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2011 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief HSMCI driver functions.
+ *
+ * \author Daniele Basile <asterix@develer.com>
+ */
+
+#ifndef DRV_HSMCI_SAM3_H
+#define DRV_HSMCI_SAM3_H
+
+#include <io/cm3.h>
+#include <cfg/macros.h>
+
+#define CMD8_V_RANGE_CHECK_PAT    0xAA
+#define CMD8_V_RANGE_27V_36V      (0x100 | CMD8_V_RANGE_CHECK_PAT)
+#define CMD8_V_RANGE_LOW          (0x1000 | CMD8_V_RANGE_CHECK_PAT)
+#define CMD8_V_ECHO_REPLY         0xFF
+#define CMD8_SUPP_V_RANGE_REPLY   0xFF00
+
+
+#define SD_OCR_CCS              BV(30)     /**< SD Card Capacity Status (CCS) */
+#define SD_OCR_BUSY             BV(31)     /**< SD/MMC Card power up status bit (busy) */
+
+#define SD_OCR_VDD_27_28        BV(15)
+#define SD_OCR_VDD_28_29        BV(16)
+#define SD_OCR_VDD_29_30        BV(17)
+#define SD_OCR_VDD_30_31        BV(18)
+#define SD_OCR_VDD_31_32        BV(19)
+#define SD_OCR_VDD_32_33        BV(20)
+
+
+#define SD_HOST_VOLTAGE_RANGE     (SD_OCR_VDD_27_28 | \
+                                   SD_OCR_VDD_28_29 | \
+                                   SD_OCR_VDD_29_30 | \
+                                   SD_OCR_VDD_30_31 | \
+                                   SD_OCR_VDD_31_32 | \
+                                   SD_OCR_VDD_32_33)
+
+typedef struct Hsmci
+{
+} Hsmci;
+
+void hsmci_readResp(void *resp, size_t len);
+bool hsmci_sendCmd(uint8_t index, uint32_t argument, uint32_t reply_type);
+
+void hsmci_init(Hsmci *hsmci);
+
+#endif /* DRV_HSMCI_SAM3_H */