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peripheralman.c: Added PWM

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Signed-off-by: Sanrio Alvares <sanrio.alvares@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Sanrio Alvares
2017-03-20 09:00:29 -07:00
committed by Noel Eck
parent 567a92fde5
commit beaba463f7
3 changed files with 109 additions and 2 deletions
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1
include/mraa_adv_func.h
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@@ -89,6 +89,7 @@ typedef struct {
mraa_result_t (*pwm_init_pre) (int pin);
mraa_result_t (*pwm_init_post) (mraa_pwm_context pwm);
mraa_result_t (*pwm_period_replace) (mraa_pwm_context dev, int period);
mraa_result_t (*pwm_duty_cycle_replace) (mraa_pwm_context dev, int duty_cycle);
float (*pwm_read_replace) (mraa_pwm_context dev);
mraa_result_t (*pwm_write_replace) (mraa_pwm_context dev, float duty);
mraa_result_t (*pwm_write_pre) (mraa_pwm_context dev, float percentage);

21
include/mraa_internal_types.h
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@@ -45,6 +45,7 @@
#define MAX_I2C_BUS_COUNT 12
#define MAX_SPI_BUS_COUNT 12
#define MAX_UART_COUNT 6
#define MAX_PWM_COUNT 6
// general status failures for internal functions
@@ -187,6 +188,9 @@ struct _pwm {
mraa_boolean_t owner; /**< Owner of pwm context*/
mraa_adv_func_t* advance_func; /**< override function table */
/*@}*/
#ifdef PERIPHERALMAN
APwmDevice *bpwm;
#endif
};
/**
@@ -369,6 +373,16 @@ typedef struct {
/*@}*/
} mraa_uart_dev_t;
/**
* A Structure representing a pwm device.
*/
typedef struct {
/*@{*/
unsigned int index; /**< ID as exposed in the system */
char* device_path; /**< To store "/dev/pwm" for example */
/*@}*/
} mraa_pwm_dev_t;
/**
* A Structure representing a platform/board.
*/
@@ -386,10 +400,13 @@ typedef struct _board_t {
unsigned int def_spi_bus; /**< Position in array of defult spi bus */
unsigned int adc_raw; /**< ADC raw bit value */
unsigned int adc_supported; /**< ADC supported bit value */
unsigned int def_uart_dev; /**< Position in array of defult uart */
int uart_dev_count; /**< Usable spi Count */
unsigned int def_uart_dev; /**< Position in array of default uart */
unsigned int def_pwm_dev; /**< Position in array of default pwm */
int uart_dev_count; /**< Usable uart Count */
mraa_uart_dev_t uart_dev[MAX_UART_COUNT]; /**< Array of UARTs */
mraa_boolean_t no_bus_mux; /**< i2c/spi/adc/pwm/uart bus muxing setup not required */
int pwm_dev_count; /**< Usable pwm Count */
mraa_pwm_dev_t pwm_dev[MAX_PWM_COUNT]; /**< Array of PWMs */
int pwm_default_period; /**< The default PWM period is US */
int pwm_max_period; /**< Maximum period in us */
int pwm_min_period; /**< Minimum period in us */