Add SAMA5D2 Xplained IAR demo.

[freertos] / FreeRTOS / Demo / CORTEX_A5_SAMA5D2x_Xplained_IAR / AtmelFiles / drivers / peripherals / twid.h

diff --git a/FreeRTOS/Demo/CORTEX_A5_SAMA5D2x_Xplained_IAR/AtmelFiles/drivers/peripherals/twid.h b/FreeRTOS/Demo/CORTEX_A5_SAMA5D2x_Xplained_IAR/AtmelFiles/drivers/peripherals/twid.h
new file mode 100644 (file)
index 0000000..3e4fc70
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_A5_SAMA5D2x_Xplained_IAR/AtmelFiles/drivers/peripherals/twid.h
@@ -0,0 +1,95 @@
+/* ----------------------------------------------------------------------------\r
+ *         SAM Software Package License\r
+ * ----------------------------------------------------------------------------\r
+ * Copyright (c) 2015, Atmel Corporation\r
+ *\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions are met:\r
+ *\r
+ * - Redistributions of source code must retain the above copyright notice,\r
+ * this list of conditions and the disclaimer below.\r
+ *\r
+ * Atmel's name may not be used to endorse or promote products derived from\r
+ * this software without specific prior written permission.\r
+ *\r
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR\r
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\r
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE\r
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,\r
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,\r
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF\r
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING\r
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,\r
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ * ----------------------------------------------------------------------------\r
+ */\r
+\r
+#ifndef TWID_HEADER__\r
+#define TWID_HEADER__\r
+\r
+/*------------------------------------------------------------------------------\r
+ *        Header\r
+ *----------------------------------------------------------------------------*/\r
+\r
+#include "peripherals/twi.h"\r
+#include "mutex.h"\r
+#include "io.h"\r
+\r
+/*------------------------------------------------------------------------------\r
+ *        Types\r
+ *----------------------------------------------------------------------------*/\r
+\r
+#define TWID_SUCCESS         (0)\r
+#define TWID_INVALID_ID      (1)\r
+#define TWID_INVALID_BITRATE (2)\r
+#define TWID_ERROR_LOCK      (3)\r
+#define TWID_ERROR_DUPLEX    (4)\r
+#define TWID_ERROR_ACK       (5)\r
+#define TWID_ERROR_TIMEOUT   (6)\r
+#define TWID_ERROR_TRANSFER  (7)\r
+\r
+enum _twid_trans_mode\r
+{\r
+       TWID_MODE_POLLING,\r
+       TWID_MODE_FIFO,\r
+       TWID_MODE_DMA\r
+};\r
+\r
+struct _twi_desc;\r
+\r
+typedef void (*twid_callback_t)(struct _twi_desc* spid, void* args);\r
+\r
+struct _twi_desc\r
+{\r
+       Twi*  addr;\r
+       uint32_t freq;\r
+       uint32_t slave_addr;\r
+       uint32_t iaddr;\r
+       uint32_t isize;\r
+       uint8_t transfert_mode;\r
+       /* implicit internal padding is mandatory here */\r
+       mutex_t mutex;\r
+       uint32_t region_start;\r
+       uint32_t region_end;\r
+       twid_callback_t callback;\r
+       void*   cb_args;\r
+};\r
+\r
+/*------------------------------------------------------------------------------\r
+ *        Functions\r
+ *----------------------------------------------------------------------------*/\r
+\r
+extern void twid_configure(struct _twi_desc* desc);\r
+extern uint32_t twid_transfert(struct _twi_desc* desc, struct _buffer* rx,\r
+                         struct _buffer* tx, twid_callback_t cb,\r
+                         void* user_args);\r
+extern void twid_finish_transfert_callback(struct _twi_desc* desc,\r
+                                     void* user_args);\r
+extern void twid_finish_transfert(struct _twi_desc* desc);\r
+extern uint32_t twid_is_busy(const struct _twi_desc* desc);\r
+extern void twid_wait_transfert(const struct _twi_desc* desc);\r
+\r
+#endif /* TWID_HEADER__ */\r