nrf5/hal: Adding template files for TWI (i2c) hal.

nrf5/hal/hal_twi.c

@@ -0,0 +1,36 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Glenn Ruben Bakke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "mphalport.h"
+#include "hal_twi.h"
+
+#ifdef HAL_TWI_MODULE_ENABLED
+
+void hal_twi_init(NRF_TWI_Type * p_instance, hal_twi_init_t const * p_twi_init) {
+}
+
+#endif // HAL_TWI_MODULE_ENABLED
+

nrf5/hal/hal_twi.h

@@ -0,0 +1,86 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Glenn Ruben Bakke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef HAL_TWI_H__
+#define HAL_TWI_H__
+
+#include "nrf.h"
+
+#define TWI_BASE_POINTERS (const uint32_t[]){NRF_TWI0_BASE, NRF_TWI1_BASE}
+#define TWI_BASE(x) ((NRF_TWI_Type *)TWI_BASE_POINTERS[x])
+
+#if NRF51
+
+#define TWI_IRQ_VALUES (const uint32_t[]){SPI0_TWI0_IRQn, SPI1_TWI1_IRQn}
+
+#elif NRF52
+
+#define TWI_IRQ_VALUES (const uint32_t[]){SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn, \
+                                          SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn}
+
+#endif
+
+#if NRF52
+
+/**
+  * @brief  TWIM Configuration Structure definition
+  */
+typedef struct {
+} hal_twim_init_t;
+
+/**
+  * @brief  TWIS Configuration Structure definition
+  */
+typedef struct {
+} hal_twis_init_t;
+
+#endif
+
+/**
+  * @brief  TWI Configuration Structure definition
+  */
+typedef struct {
+} hal_twi_init_t;
+
+typedef enum {
+    HAL_TWI_MASTER,
+    HAL_TWI_SLAVE
+} hal_twi_mode_t;
+
+/**
+  * @brief  TWI handle Structure definition
+  */
+typedef struct __TWI_HandleTypeDef
+{
+    NRF_TWI_Type               *instance;    /* TWI register base address */
+    hal_twi_init_t             init;         /* TWI initialization parameters */
+    uint8_t                    id;           /* TWI instance id */
+    hal_twi_mode_t             mode;         /* TWI master/slave */
+} TWI_HandleTypeDef;
+
+void hal_twi_init(NRF_TWI_Type * p_instance, hal_twi_init_t const * p_twi_init);
+
+#endif // HAL_TWI_H__

nrf5/hal/hal_twie.c

@@ -0,0 +1,40 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Glenn Ruben Bakke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "mphalport.h"
+#include "hal_twi.h"
+
+#ifdef HAL_TWIM_MODULE_ENABLED
+
+// EasyDMA variants
+#define TWI_MASTER_BASE(x) ((NRF_TWIM_Type *)TWI_BASE_POINTERS[x])
+#define TWI_SLAVE_BASE(x) ((NRF_TWIS_Type *)TWI_BASE_POINTERS[x])
+
+void hal_twi_init(NRF_TWI_Type * p_instance, hal_twi_init_t const * p_twi_init) {
+}
+
+#endif // HAL_TWIM_MODULE_ENABLED
+