Diff: TARGET_SAMR21G18A/TOOLCHAIN_GCC_ARM/tc_interrupt.h

Revision:

171:3a7713b1edbc

Parent:

111:4336505e4b1c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_SAMR21G18A/TOOLCHAIN_GCC_ARM/tc_interrupt.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,175 @@
+/**
+ * \file
+ *
+ * \brief SAM TC - Timer Counter Callback Driver
+ *
+ * Copyright (C) 2013-2015 Atmel Corporation. All rights reserved.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. The name of Atmel may not be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * 4. This software may only be redistributed and used in connection with an
+ *    Atmel microcontroller product.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+/*
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
+ */
+
+#ifndef TC_INTERRUPT_H_INCLUDED
+#define TC_INTERRUPT_H_INCLUDED
+
+#include "tc.h"
+#include <system_interrupt.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !defined(__DOXYGEN__)
+extern void *_tc_instances[TC_INST_NUM];
+
+#  define _TC_INTERRUPT_VECT_NUM(n, unused) \
+		  SYSTEM_INTERRUPT_MODULE_TC##n,
+/**
+ * \internal Get the interrupt vector for the given device instance
+ *
+ * \param[in] TC module instance number.
+ *
+ * \return Interrupt vector for of the given TC module instance.
+ */
+static enum system_interrupt_vector _tc_interrupt_get_interrupt_vector(
+    uint32_t inst_num)
+{
+    static uint8_t tc_interrupt_vectors[TC_INST_NUM] = {
+#if (SAML21E) || (SAML21G)
+        SYSTEM_INTERRUPT_MODULE_TC0,
+        SYSTEM_INTERRUPT_MODULE_TC1,
+        SYSTEM_INTERRUPT_MODULE_TC4
+#else
+        MRECURSION(TC_INST_NUM, _TC_INTERRUPT_VECT_NUM, TC_INST_MAX_ID)
+#endif
+    };
+
+    return (enum system_interrupt_vector)tc_interrupt_vectors[inst_num];
+}
+#endif /* !defined(__DOXYGEN__) */
+
+/**
+ * \name Callback Management
+ * {@
+ */
+
+enum status_code tc_register_callback(
+    struct tc_module *const module,
+    tc_callback_t callback_func,
+    const enum tc_callback callback_type);
+
+enum status_code tc_unregister_callback(
+    struct tc_module *const module,
+    const enum tc_callback callback_type);
+
+/**
+ * \brief Enables callback.
+ *
+ * Enables the callback function registered by the \ref
+ * tc_register_callback. The callback function will be called from the
+ * interrupt handler when the conditions for the callback type are
+ * met. This function will also enable the appropriate interrupts.
+ *
+ * \param[in]     module Pointer to TC software instance struct
+ * \param[in]     callback_type Callback type given by an enum
+ */
+static inline void tc_enable_callback(
+    struct tc_module *const module,
+    const enum tc_callback callback_type)
+{
+    /* Sanity check arguments */
+    Assert(module);
+
+
+    /* Enable interrupts for this TC module */
+    system_interrupt_enable(_tc_interrupt_get_interrupt_vector(_tc_get_inst_index(module->hw)));
+
+    /* Enable callback */
+    if (callback_type == TC_CALLBACK_CC_CHANNEL0) {
+        module->enable_callback_mask |= TC_INTFLAG_MC(1);
+        module->hw->COUNT8.INTENSET.reg = TC_INTFLAG_MC(1);
+    } else if (callback_type == TC_CALLBACK_CC_CHANNEL1) {
+        module->enable_callback_mask |= TC_INTFLAG_MC(2);
+        module->hw->COUNT8.INTENSET.reg = TC_INTFLAG_MC(2);
+    } else {
+        module->enable_callback_mask |= (1 << callback_type);
+        module->hw->COUNT8.INTENSET.reg = (1 << callback_type);
+    }
+}
+
+/**
+ * \brief Disables callback.
+ *
+ * Disables the callback function registered by the \ref
+ * tc_register_callback, and the callback will not be called from the
+ * interrupt routine. The function will also disable the appropriate
+ * interrupts.
+ *
+ * \param[in]     module Pointer to TC software instance struct
+ * \param[in]     callback_type Callback type given by an enum
+ */
+static inline void tc_disable_callback(
+    struct tc_module *const module,
+    const enum tc_callback callback_type)
+{
+    /* Sanity check arguments */
+    Assert(module);
+
+    /* Disable callback */
+    if (callback_type == TC_CALLBACK_CC_CHANNEL0) {
+        module->hw->COUNT8.INTENCLR.reg = TC_INTFLAG_MC(1);
+        module->enable_callback_mask &= ~TC_INTFLAG_MC(1);
+    } else if (callback_type == TC_CALLBACK_CC_CHANNEL1) {
+        module->hw->COUNT8.INTENCLR.reg = TC_INTFLAG_MC(2);
+        module->enable_callback_mask &= ~TC_INTFLAG_MC(2);
+    } else {
+        module->hw->COUNT8.INTENCLR.reg = (1 << callback_type);
+        module->enable_callback_mask &= ~(1 << callback_type);
+    }
+}
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* TC_INTERRUPT_H_INCLUDED */