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fsl_pit_irq.c
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30 
31 #include <stdlib.h>
32 #include <assert.h>
33 #include "fsl_pit_driver.h"
34 #include "BM_pit_instance.h"
35 #include "fsl_pit_features.h"
36 
37 /*!
38  * @addtogroup pit_irq
39  * @{
40  */
41 
42 /*******************************************************************************
43  * Variables
44  ******************************************************************************/
45 #if defined (KL25Z4_SERIES)
46 /*!
47  * @brief Table to save PIT IRQ enum numbers defined in CMSIS files.
48  *
49  * They are used by pit_init_channel to enable or disable PIT interrupts. This table is
50  * indexed by channel number which could return PIT IRQ numbers.
51  */
52 const IRQn_Type pit_irq_ids[FSL_FEATURE_PIT_TIMER_COUNT] =
53 {
54  PIT_IRQn, PIT_IRQn
55 };
56 #elif defined (K64F12_SERIES) || defined (K70F12_SERIES) || defined (K22F51212_SERIES)
57 const IRQn_Type pit_irq_ids[FSL_FEATURE_PIT_TIMER_COUNT] =
58 {
59  PIT0_IRQn, PIT1_IRQn, PIT2_IRQn, PIT3_IRQn
60 };
61 #endif
62 
63 /*!
64  * @brief Function table to save PIT isr callback function pointers.
65  *
66  * Call pit_register_isr_callback_function to install isr callback functions.
67  */
68 pit_isr_callback_t pit_isr_callback_table[FSL_FEATURE_PIT_TIMER_COUNT] = {NULL};
69 
70 /*******************************************************************************
71  * Code
72  ******************************************************************************/
73 #if defined (KL25Z4_SERIES)
74 /*!
75  * @brief System default IRQ handler defined in startup code.
76  *
77  * Users can either edit this handler or define a callback function. Furthermore,
78  * interrupt manager could be used to re-map the IRQ handler to another function.
79  */
80 void PIT_IRQHandler(void)
81 {
82  uint32_t i;
83  for(i=0; i < FSL_FEATURE_PIT_TIMER_COUNT; i++)
84  {
85  /* Run callback function if it exists.*/
87  {
88  (*pit_isr_callback_table[i])();
89  }
90 
91  /* Clear interrupt flag.*/
93 
94  }
95 }
96 
97 #elif defined (K64F12_SERIES) || defined (K70F12_SERIES) || defined (K22F51212_SERIES)
98 
99 void PIT0_IRQHandler(void)
100 {
101  /* Run callback function if it exists.*/
102  if (pit_isr_callback_table[0])
103  {
104  (*pit_isr_callback_table[0])();
105  }
106 
107  /* Clear interrupt flag.*/
109 }
110 
111 void PIT1_IRQHandler(void)
112 {
113  /* Run callback function if it exists.*/
114  if (pit_isr_callback_table[1])
115  {
116  (*pit_isr_callback_table[1])();
117  }
118 
119  /* Clear interrupt flag.*/
121 }
122 
123 void PIT2_IRQHandler(void)
124 {
125  /* Run callback function if it exists.*/
126  if (pit_isr_callback_table[2])
127  {
128  (*pit_isr_callback_table[2])();
129  }
130 
131  /* Clear interrupt flag.*/
133 }
134 
135 void PIT3_IRQHandler(void)
136 {
137  /* Run callback function if it exists.*/
138  if (pit_isr_callback_table[3])
139  {
140  (*pit_isr_callback_table[3])();
141  }
142 
143  /* Clear interrupt flag.*/
145 }
146 #endif
147 
148 /*! @} */
149 
150 /*FUNCTION**********************************************************************
151  *
152  * Function Name : pit_register_isr_callback_function
153  * Description : Register pit isr callback function.
154  * System default ISR interfaces are already defined in fsl_pit_irq.c. Users
155  * can either edit these ISRs or use this function to register a callback
156  * function. The default ISR will run the callback function it there is one
157  * installed here.
158 
159  *END**************************************************************************/
161 {
162  //assert(timer < FSL_FEATURE_PIT_TIMER_COUNT);
163  //assert(function != NULL);
164 
165  pit_isr_callback_table[timer] = function;
166 }
167 
168 /*******************************************************************************
169  * EOF
170  ******************************************************************************/
171 
172 
173 
void pit_hal_clear_interrupt_flag(uint32_t timer)
Clear timer interrupt flag.
Definition: fsl_pit_hal.c:105
void(* pit_isr_callback_t)(void)
PIT ISR callback function typedef.
void pit_register_isr_callback_function(uint32_t timer, pit_isr_callback_t function)
Register pit isr callback function.
Definition: fsl_pit_irq.c:160
pit_isr_callback_t pit_isr_callback_table[FSL_FEATURE_PIT_TIMER_COUNT]
Function table to save PIT isr callback function pointers.
Definition: fsl_pit_irq.c:68
fsl_pit_driver.h defines structures and types for the PIT driver.