#include <device/mmio.h>
#include <soc/addressmap.h>
#include <soc/grf.h>
#include <soc/soc.h>
#include <soc/pwm.h>
#include <soc/clock.h>
#include <timer.h>

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Data Structures
struct	pwm_ctl

struct	rk_pwm_regs

Macros
#define	RK_PWM_DISABLE (0 << 0)

#define	RK_PWM_ENABLE (1 << 0)

#define	PWM_ONE_SHOT (0 << 1)

#define	PWM_CONTINUOUS (1 << 1)

#define	RK_PWM_CAPTURE (1 << 2)

#define	PWM_DUTY_POSTIVE (1 << 3)

#define	PWM_DUTY_NEGATIVE (0 << 3)

#define	PWM_INACTIVE_POSTIVE (1 << 4)

#define	PWM_INACTIVE_NEGATIVE (0 << 4)

#define	PWM_OUTPUT_LEFT (0 << 5)

#define	PWM_OUTPUT_CENTER (1 << 5)

#define	PWM_LP_ENABLE (1 << 8)

#define	PWM_LP_DISABLE (0 << 8)

#define	PWM_SEL_SCALE_CLK (1 << 9)

#define	PWM_SEL_SRC_CLK (0 << 9)

Functions
	check_member (rk_pwm_regs, int_en, 0x44)

void	pwm_init (u32 id, u32 period_ns, u32 duty_ns)

Variables
struct rk_pwm_regs *	rk_pwm = (void *)RK_PWM_BASE

Macro Definition Documentation

◆ PWM_CONTINUOUS

#define PWM_CONTINUOUS (1 << 1)

Definition at line 29 of file pwm.c.

◆ PWM_DUTY_NEGATIVE

#define PWM_DUTY_NEGATIVE (0 << 3)

Definition at line 33 of file pwm.c.

◆ PWM_DUTY_POSTIVE

#define PWM_DUTY_POSTIVE (1 << 3)

Definition at line 32 of file pwm.c.

◆ PWM_INACTIVE_NEGATIVE

#define PWM_INACTIVE_NEGATIVE (0 << 4)

Definition at line 36 of file pwm.c.

◆ PWM_INACTIVE_POSTIVE

#define PWM_INACTIVE_POSTIVE (1 << 4)

Definition at line 35 of file pwm.c.

◆ PWM_LP_DISABLE

#define PWM_LP_DISABLE (0 << 8)

Definition at line 42 of file pwm.c.

◆ PWM_LP_ENABLE

#define PWM_LP_ENABLE (1 << 8)

Definition at line 41 of file pwm.c.

◆ PWM_ONE_SHOT

#define PWM_ONE_SHOT (0 << 1)

Definition at line 28 of file pwm.c.

◆ PWM_OUTPUT_CENTER

#define PWM_OUTPUT_CENTER (1 << 5)

Definition at line 39 of file pwm.c.

◆ PWM_OUTPUT_LEFT

#define PWM_OUTPUT_LEFT (0 << 5)

Definition at line 38 of file pwm.c.

◆ PWM_SEL_SCALE_CLK

#define PWM_SEL_SCALE_CLK (1 << 9)

Definition at line 44 of file pwm.c.

◆ PWM_SEL_SRC_CLK

#define PWM_SEL_SRC_CLK (0 << 9)

Definition at line 45 of file pwm.c.

◆ RK_PWM_CAPTURE

#define RK_PWM_CAPTURE (1 << 2)

Definition at line 30 of file pwm.c.

◆ RK_PWM_DISABLE

#define RK_PWM_DISABLE (0 << 0)

Definition at line 25 of file pwm.c.

◆ RK_PWM_ENABLE

#define RK_PWM_ENABLE (1 << 0)

Definition at line 26 of file pwm.c.

Function Documentation

◆ check_member()

check_member	(	rk_pwm_regs	,
		int_en	,
		0x44
	)

◆ pwm_init()

void pwm_init	(	u32	id,
		u32	period_ns,
		u32	duty_ns
	)

Definition at line 49 of file pwm.c.

References rk_pwm_regs::pwm, PWM_CLOCK_HZ, PWM_CONTINUOUS, pwm_ctl::pwm_ctrl, pwm_ctl::pwm_duty_lpr, PWM_DUTY_POSTIVE, PWM_INACTIVE_POSTIVE, PWM_LP_DISABLE, PWM_OUTPUT_LEFT, pwm_ctl::pwm_period_hpr, PWM_SEL_SRC_CLK, rk3288_grf, rk_pwm, RK_PWM_DISABLE, RK_PWM_ENABLE, RK_SETBITS, setbits32, rk3288_grf_regs::soc_con2, USECS_PER_SEC, and write32().

Referenced by pwm_regulator_configure(), and regulate_vdd_log().

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Variable Documentation

◆ rk_pwm

struct rk_pwm_regs* rk_pwm = (void *)RK_PWM_BASE

Definition at line 47 of file pwm.c.

Referenced by pwm_init().

Data Structures

Macros

Functions

Variables