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Added esp/timer_regs.h and esp/dport_regs.h

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This commit is contained in:
Alex Stewart 2015-08-19 11:34:18 -07:00
parent 3cc5d1fa86
commit eaa090e267
6 changed files with 234 additions and 227 deletions
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22
core/include/esp/timer.h
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@ -11,12 +11,12 @@
#include <stdbool.h>
#include <xtensa_interrupts.h>
#include "esp/registers.h"
#include "esp/timer_regs.h"
#include "esp/cpu.h"
typedef enum {
TIMER_FRC1,
TIMER_FRC2,
FRC1 = 0,
FRC2 = 1,
} timer_frc_t;
/* Return current count value for timer. */
@ -31,14 +31,8 @@ INLINED void timer_set_load(const timer_frc_t frc, const uint32_t load);
/* Returns maximum load value for timer. */
INLINED uint32_t timer_max_load(const timer_frc_t frc);
typedef enum {
TIMER_DIV1,
TIMER_DIV16,
TIMER_DIV256,
} timer_div_t;
/* Set the timer divider value */
INLINED void timer_set_divider(const timer_frc_t frc, const timer_div_t div);
INLINED void timer_set_divider(const timer_frc_t frc, const timer_clkdiv_t div);
/* Enable or disable timer interrupts
@ -62,7 +56,7 @@ INLINED bool timer_get_reload(const timer_frc_t frc);
/* Return a suitable timer divider for the specified frequency,
or -1 if none is found.
*/
INLINED timer_div_t timer_freq_to_div(uint32_t freq);
INLINED timer_clkdiv_t timer_freq_to_div(uint32_t freq);
/* Return the number of timer counts to achieve the specified
* frequency with the specified divisor.
@ -73,12 +67,12 @@ INLINED timer_div_t timer_freq_to_div(uint32_t freq);
*
* Compile-time evaluates if all arguments are available at compile time.
*/
INLINED uint32_t timer_freq_to_count(const timer_frc_t frc, uint32_t freq, const timer_div_t div);
INLINED uint32_t timer_freq_to_count(const timer_frc_t frc, uint32_t freq, const timer_clkdiv_t div);
/* Return a suitable timer divider for the specified duration in
microseconds or -1 if none is found.
*/
INLINED timer_div_t timer_time_to_div(uint32_t us);
INLINED timer_clkdiv_t timer_time_to_div(uint32_t us);
/* Return the number of timer counts for the specified timer duration
* in microseconds, when using the specified divisor.
@ -89,7 +83,7 @@ INLINED timer_div_t timer_time_to_div(uint32_t us);
*
* Compile-time evaluates if all arguments are available at compile time.
*/
INLINED uint32_t timer_time_to_count(const timer_frc_t frc, uint32_t us, const timer_div_t div);
INLINED uint32_t timer_time_to_count(const timer_frc_t frc, uint32_t us, const timer_clkdiv_t div);
/* Set a target timer interrupt frequency in Hz.