Adding rudimentary OPAMP Driver

2 files changed, 115 insertions, 0 deletions

diff --git a/os/hal/include/hal_community.h b/os/hal/include/hal_community.h
index 83b1f02..f84e90a 100644
--- a/os/hal/include/hal_community.h
+++ b/os/hal/include/hal_community.h
@@ -75,6 +75,10 @@
 #define HAL_USE_COMP                        FALSE

 #endif

 

+#if !defined(HAL_USE_OPAMP)

+#define HAL_USE_OPAMP                        FALSE

+#endif

+

 /* Abstract interfaces.*/

 

 /* Shared headers.*/

@@ -87,6 +91,7 @@
 #include "hal_timcap.h"

 #include "hal_qei.h"

 #include "hal_comp.h"

+#include "hal_opamp.h"

 

 /* Complex drivers.*/

 #include "hal_onewire.h"

diff --git a/os/hal/include/hal_opamp.h b/os/hal/include/hal_opamp.h
new file mode 100644
index 0000000..383e928
--- /dev/null
+++ b/os/hal/include/hal_opamp.h
@@ -0,0 +1,110 @@
+/*
+    ChibiOS - Copyright (C) 2006..2019 Giovanni Di Sirio
+              Copyright (C) 2019 Fabien Poussin (fabien.poussin (at) google's mail)
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef HAL_OPAMP_H_
+#define HAL_OPAMP_H_
+
+#include "hal.h"
+
+#if (HAL_USE_OPAMP == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Driver state machine possible states.
+ */
+typedef enum {
+  OPAMP_UNINIT = 0,                   /**< Not initialized.                   */
+  OPAMP_STOP = 1,                     /**< Stopped.                           */
+  OPAMP_READY = 2,                    /**< Ready.                             */
+  OPAMP_ACTIVE = 3,                   /**< Active cycle phase.                */
+} opampstate_t;
+
+/**
+ * @brief   Type of a structure representing an OPAMP driver.
+ */
+typedef struct OPAMPDriver OPAMPDriver;
+
+#include "hal_opamp_lld.h"
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @name    Macro Functions
+ * @{
+ */
+/**
+ * @brief   Enables the input capture.
+ *
+ * @param[in] opamp      pointer to the @p OPAMPDriver object
+ *
+ * @iclass
+ */
+#define opampEnableI(opamp) opamp_lld_enable(opamp)
+
+/**
+ * @brief   Disables the input capture.
+ *
+ * @param[in] opamp      pointer to the @p OPAMPDriver object
+ *
+ * @iclass
+ */
+#define opampDisableI(opamp) opamp_lld_disable(opamp)
+/** @} */
+
+
+/**
+ * @name    Low Level driver helper macros
+ * @{
+ */
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void opampInit(void);
+  void opampObjectInit(OPAMPDriver *opamp);
+  void opampStart(OPAMPDriver *opamp, const OPAMPConfig *config);
+  void opampStop(OPAMPDriver *opamp);
+  void opampEnable(OPAMPDriver *opamp);
+  void opampDisable(OPAMPDriver *opamp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_OPAMP */
+
+#endif /* HAL_OPAMP_H_ */