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29 * Copyright 2008 Develer S.r.l. (http://www.develer.com/)
33 * \brief DC motor driver.
37 * \author Daniele Basile <asterix@develer.com>
39 * $WIZ$ module_name = "dc_motor"
40 * $WIZ$ module_depends = "pwm", "pid_control", "adc", "timer"
41 * $WIZ$ module_configuration = "bertos/cfg/cfg_dc_motor.h"
42 * $WIZ$ module_hw = "bertos/hw/hw_dc_motor.h"
45 #ifndef DRV_DC_MOTOR_H
46 #define DRV_DC_MOTOR_H
48 #include "hw/hw_dc_motor.h"
50 #include "cfg/cfg_dc_motor.h"
51 #include <cfg/macros.h>
53 #include <algo/pid_control.h>
56 #include <drv/timer.h>
61 * Define status bit for DC motor device.
63 #define DC_MOTOR_ACTIVE BV(0) ///< DC motor enable or disable flag.
64 #define DC_MOTOR_DIR BV(1) ///< Spin direction of DC motor.
69 typedef uint16_t dc_speed_t;
72 * DC motor configuration stucture
74 typedef struct DCMotorConfig
76 PidCfg pid_cfg; ///< Pid control.
78 PwmDev pwm_dev; ///< Pwm channel.
79 pwm_freq_t freq; ///< Pwm waveform frequency.
81 adc_ch_t adc_ch; ///< ADC channel.
82 adcread_t adc_max; ///< ADC max scale value.
83 adcread_t adc_min; ///< ADC min scale value.
84 mtime_t sample_delay; ///< Delay before to sampling.
86 bool dir; ///< Default direction for select DC motor.
92 * Context structure for DC motor.
94 typedef struct DCMotor
96 const DCMotorConfig *cfg; ///< All configuration for select DC motor.
97 PidContext pid_ctx; ///< Pid control.
99 int index; ///< DC motor id.
100 uint32_t status; ///< Status of select DC motor
101 dc_speed_t tgt_speed; ///< Target speed for select DC motor
105 void dc_motor_setDir(int index, bool dir);
106 void dc_motor_enable(int index, bool state);
107 void dc_motor_setSpeed(int index, dc_speed_t speed);
108 void dc_motor_setup(int index, DCMotorConfig *cfg);
109 void dc_motor_init(void);
111 #endif /* DRV_DC_MOTOR_H */