diff options
| author | hathach <[email protected]> | 2018-06-18 14:05:24 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2018-06-18 14:05:24 +0700 |
| commit | 424735d44041fc478b572f973d997829b402153d (patch) | |
| tree | bc9956eee5bba55cf2f46fe49b504a6278d5b8b9 /src/osal/osal_none.h | |
| parent | b96e8c6cefd0128c99ab65fe7f2909449c85092b (diff) | |
rename subfolder source to src
Diffstat (limited to 'src/osal/osal_none.h')
| -rw-r--r-- | src/osal/osal_none.h | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/osal/osal_none.h b/src/osal/osal_none.h new file mode 100644 index 000000000..5b13fcbfa --- /dev/null +++ b/src/osal/osal_none.h @@ -0,0 +1,247 @@ +/**************************************************************************/
+/*!
+ @file osal_none.h
+ @author hathach (tinyusb.org)
+
+ @section LICENSE
+
+ Software License Agreement (BSD License)
+
+ Copyright (c) 2013, hathach (tinyusb.org)
+ All rights reserved.
+
+ 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. Neither the name of the copyright holders nor the
+ names of its contributors may be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+ EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
+
+ This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup group_osal
+ * \defgroup Group_OSNone None OS
+ * @{ */
+
+#ifndef _TUSB_OSAL_NONE_H_
+#define _TUSB_OSAL_NONE_H_
+
+#include "common/tusb_fifo.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// TASK API
+// NOTES: Each blocking OSAL_NONE services such as semaphore wait,
+// queue receive embedded return statement, therefore local variable
+// retain value before/after such services needed to declare as static
+// OSAL_TASK_LOOP
+// {
+// OSAL_TASK_BEGIN
+//
+// task body statements
+//
+// OSAL_TASK_LOOP_ENG
+// }
+//
+// NOTE: no switch statement is allowed in Task and subtask
+//--------------------------------------------------------------------+
+#define OSAL_TASK_DEF(_name, _str, _func, _prio, _stack_sz) osal_task_def_t _name;
+
+typedef uint8_t osal_task_def_t;
+typedef void* osal_task_t;
+
+static inline osal_task_t osal_task_create(osal_task_def_t* taskdef)
+{
+ (void) taskdef;
+ return (osal_task_t) 1; // return non zero
+}
+
+#define TASK_RESTART \
+ _state = 0
+
+#define OSAL_TASK_BEGIN \
+ static uint16_t _state = 0; \
+ ATTR_UNUSED static uint32_t _timeout = 0; \
+ (void) _timeout; \
+ switch(_state) { \
+ case 0: {
+
+#define OSAL_TASK_END \
+ default: TASK_RESTART; break; \
+ }} \
+ return;
+
+#define osal_task_delay(msec) \
+ do { \
+ _timeout = tusb_hal_millis(); \
+ _state = __LINE__; case __LINE__: \
+ if ( _timeout + msec > tusb_hal_millis() ) \
+ return TUSB_ERROR_OSAL_WAITING; \
+ }while(0)
+
+//--------------------------------------------------------------------+
+// SUBTASK (a sub function that uses OS blocking services & called by a task
+//--------------------------------------------------------------------+
+#define OSAL_SUBTASK_BEGIN OSAL_TASK_BEGIN
+
+#define OSAL_SUBTASK_END \
+ default: TASK_RESTART; break; \
+ }} \
+ return TUSB_ERROR_NONE;
+
+#define STASK_INVOKE(_subtask, _status) \
+ do { \
+ _state = __LINE__; case __LINE__: \
+ { \
+ (_status) = _subtask; /* invoke sub task */ \
+ if (TUSB_ERROR_OSAL_WAITING == (_status)) return TUSB_ERROR_OSAL_WAITING; \
+ } \
+ }while(0)
+
+//------------- Sub Task Assert -------------//
+#define STASK_RETURN(error) do { TASK_RESTART; return error; } while(0)
+
+#define STASK_ASSERT_ERR(_err) VERIFY_ERR_HDLR(_err, verify_breakpoint(); TASK_RESTART)
+#define STASK_ASSERT_ERR_HDLR(_err, _func) VERIFY_ERR_HDLR(_err, verify_breakpoint(); _func; TASK_RESTART )
+
+#define STASK_ASSERT(_cond) VERIFY_HDLR(_cond, verify_breakpoint(); TASK_RESTART)
+#define STASK_ASSERT_HDLR(_cond, _func) VERIFY_HDLR(_cond, verify_breakpoint(); _func; TASK_RESTART)
+
+//--------------------------------------------------------------------+
+// QUEUE API
+//--------------------------------------------------------------------+
+#define OSAL_QUEUE_DEF(_name, _depth, _type) FIFO_DEF(_name, _depth, _type, false)
+
+typedef fifo_t osal_queue_def_t;
+typedef fifo_t* osal_queue_t;
+
+static inline osal_queue_t osal_queue_create(osal_queue_def_t* qdef)
+{
+ fifo_clear(qdef);
+ return (osal_queue_t) qdef;
+}
+
+static inline bool osal_queue_send_isr(osal_queue_t const queue_hdl, void const * data)
+{
+ return fifo_write( (fifo_t*) queue_hdl, data);
+}
+
+static inline void osal_queue_flush(osal_queue_t const queue_hdl)
+{
+ queue_hdl->count = queue_hdl->rd_idx = queue_hdl->wr_idx = 0;
+}
+
+#define osal_queue_receive(queue_hdl, p_data, msec, p_error) \
+ do { \
+ _timeout = tusb_hal_millis(); \
+ _state = __LINE__; case __LINE__: \
+ if( queue_hdl->count == 0 ) { \
+ if ( (msec != OSAL_TIMEOUT_WAIT_FOREVER) && ( _timeout + msec <= tusb_hal_millis()) ) \
+ *(p_error) = TUSB_ERROR_OSAL_TIMEOUT; \
+ else \
+ return TUSB_ERROR_OSAL_WAITING; \
+ } else{ \
+ /*tusb_hal_int_disable_all();*/ \
+ fifo_read(queue_hdl, p_data); \
+ /*tusb_hal_int_enable_all();*/ \
+ *(p_error) = TUSB_ERROR_NONE; \
+ } \
+ }while(0)
+
+
+//--------------------------------------------------------------------+
+// Semaphore API
+//--------------------------------------------------------------------+
+typedef struct
+{
+ volatile uint16_t count;
+ uint16_t max_count;
+}osal_semaphore_def_t;
+
+typedef osal_semaphore_def_t* osal_semaphore_t;
+
+
+static inline osal_semaphore_t osal_semaphore_create(osal_semaphore_def_t* semdef)
+{
+ semdef->count = 0;
+ semdef->max_count = 1;
+ return semdef;
+}
+
+#define osal_semaphore_post_isr osal_semaphore_post
+
+static inline bool osal_semaphore_post(osal_semaphore_t sem_hdl)
+{
+ if (sem_hdl->count < sem_hdl->max_count ) sem_hdl->count++;
+ return true;
+}
+
+static inline void osal_semaphore_reset_isr(osal_semaphore_t sem_hdl)
+{
+ sem_hdl->count = 0;
+}
+
+#define osal_semaphore_wait(sem_hdl, msec, p_error) \
+ do { \
+ _timeout = tusb_hal_millis(); \
+ _state = __LINE__; case __LINE__: \
+ if( sem_hdl->count == 0 ) { \
+ if ( (msec != OSAL_TIMEOUT_WAIT_FOREVER) && (_timeout + msec <= tusb_hal_millis()) ) \
+ *(p_error) = TUSB_ERROR_OSAL_TIMEOUT; \
+ else \
+ return TUSB_ERROR_OSAL_WAITING; \
+ } else{ \
+ /*tusb_hal_int_disable_all();*/ \
+ sem_hdl->count--; \
+ /*tusb_hal_int_enable_all();*/ \
+ *(p_error) = TUSB_ERROR_NONE; \
+ } \
+ }while(0)
+
+//--------------------------------------------------------------------+
+// MUTEX API (priority inheritance)
+//--------------------------------------------------------------------+
+#if 0
+typedef osal_semaphore_t osal_mutex_t;
+
+static inline osal_mutex_t osal_mutex_create(void)
+{
+ return osal_semaphore_create(1, 0);
+}
+
+static inline bool osal_mutex_release(osal_mutex_t mutex_hdl)
+{
+ return osal_semaphore_post(mutex_hdl);
+}
+
+#define osal_mutex_wait osal_semaphore_wait
+#endif
+
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_OSAL_NONE_H_ */
+
+/** @} */
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