4 * This file is part of BeRTOS.
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29 * Copyright 2008 Develer S.r.l. (http://www.develer.com/)
33 * \brief DC motor driver (interface)
37 * \author Daniele Basile <asterix@develer.com>
40 #ifndef DRV_DC_MOTOR_H
41 #define DRV_DC_MOTOR_H
43 #include "hw/hw_dc_motor.h"
45 #include "cfg/cfg_dc_motor.h"
46 #include <cfg/macros.h>
48 #include <algo/pid_control.h>
51 #include <drv/timer.h>
56 * Define status bit for DC motor device.
58 #define DC_MOTOR_ACTIVE BV(0) ///< DC motor enable or disable flag.
59 #define DC_MOTOR_DIR BV(1) ///< Spin direction of DC motor.
64 typedef uint16_t dc_speed_t;
67 * DC motor configuration stucture
69 typedef struct DCMotorConfig
71 PidCfg pid_cfg; ///< Pid control.
73 PwmDev pwm_dev; ///< Pwm channel.
74 pwm_freq_t freq; ///< Pwm waveform frequency.
76 adc_ch_t adc_ch; ///< ADC channel.
77 adcread_t adc_max; ///< ADC max scale value.
78 adcread_t adc_min; ///< ADC min scale value.
79 mtime_t sample_delay; ///< Delay before to sampling.
81 bool dir; ///< Default direction for select DC motor.
87 * Context structure for DC motor.
89 typedef struct DCMotor
91 const DCMotorConfig *cfg; ///< All configuration for select DC motor.
92 PidContext pid_ctx; ///< Pid control.
94 int index; ///< DC motor id.
95 uint32_t status; ///< Status of select DC motor
96 dc_speed_t tgt_speed; ///< Target speed for select DC motor
100 void dc_motor_setDir(int index, bool dir);
101 void dc_motor_enable(int index, bool state);
102 void dc_motor_setSpeed(int index, dc_speed_t speed);
103 void dc_motor_setup(int index, DCMotorConfig *cfg);
104 void dc_motor_init(void);
106 #endif /* DRV_DC_MOTOR_H */