1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*++
linux/drivers/char/wmt-pwm.h
Copyright (c) 2008 WonderMedia Technologies, Inc.
This program is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software Foundation,
either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
WonderMedia Technologies, Inc.
10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
--*/
#ifndef WMT_PWM_H
/* To assert that only one occurrence is included */
#define WMT_PWM_H
/*--- wmt-pwm.h---------------------------------------------------------------
* Copyright (C) 2009 WonderMedia Tech. Inc.
*
* MODULE : wmt-pwm.h --
* AUTHOR : Sam Shen
* DATE : 2009/8/12
* DESCRIPTION :
*------------------------------------------------------------------------------*/
/*--- History -------------------------------------------------------------------
*Version 0.01 , Sam Shen, 2009/8/12
* First version
*
*------------------------------------------------------------------------------*/
/*-------------------- MODULE DEPENDENCY -------------------------------------*/
#include <linux/types.h>
#include <linux/module.h>
#include <mach/hardware.h>
// Include your headers here
/*-------------------- EXPORTED PRIVATE CONSTANTS ----------------------------*/
/* #define PWM_XXXX 1 *//*Example*/
#define PWM_NUM_MAX 4
#define PWM_PERIOD_VAL 599 //modified by howayhuo . org:1000
#define PWM_BASE_ADDR PWM0_BASE_ADDR
// PWM Control Register
#define PWM_CTRL_REG_ADDR (PWM_BASE_ADDR+0x00)
#define PWM_ENABLE 0x01
#define PWM_INVERT 0x02
#define PWM_AUTOLOAD 0x04
#define PWM_STOP_IMM 0x08
#define PWM_LOAD_PRESCALE 0x10
#define PWM_LOAD_PERIOD 0x20
// PWM Pre scalar
#define PWM_SCALAR_REG_ADDR (PWM_BASE_ADDR+0x04)
#define PWM_PRE_SCALE_MASK 0x3FF
// PWM Period value
#define PWM_PERIOD_REG_ADDR (PWM_BASE_ADDR+0x08)
#define PWM_PERIOD_MASK 0xFFF
// PWM Duty value
#define PWM_DUTY_REG_ADDR (PWM_BASE_ADDR+0x0C)
#define PWM_DUTY_MASK 0xFFF
// PWM Timer Status
#define PWM_STS_REG_ADDR (PWM_BASE_ADDR+0x40)
#define PWM_CTRL_UPDATE 0x01
#define PWM_SCALAR_UPDATE 0x02
#define PWM_PERIOD_UPDATE 0x04
#define PWM_DUTY_UPDATE 0x08
/*-------------------- EXPORTED PRIVATE TYPES---------------------------------*/
/* typedef void pwm_xxx_t; *//*Example*/
typedef struct {
int no;
unsigned int value;
} pwm_ctrl_t;
/*-------------------- EXPORTED PRIVATE VARIABLES -----------------------------*/
#ifdef WMT_PWM_C /* allocate memory for variables only in wmt-pwm.c */
# define EXTERN
#else
# define EXTERN extern
#endif /* ifdef WMT_PWM_C */
/* EXTERN int pwm_xxxx; *//*Example*/
#undef EXTERN
/*--------------------- EXPORTED PRIVATE MACROS -------------------------------*/
#define PWM_IOC_MAGIC 'p'
// #define PWMIOSET_THRESHOLD _IOW(PWM_IOC_MAGIC, 1, sizeof(int))
#define PWMIOSET_ENABLE _IOW(PWM_IOC_MAGIC, 0, pwm_ctrl_t)
#define PWMIOSET_FREQ _IOW(PWM_IOC_MAGIC, 1, pwm_ctrl_t)
#define PWMIOGET_FREQ _IOWR(PWM_IOC_MAGIC, 1, pwm_ctrl_t)
#define PWMIOSET_LEVEL _IOW(PWM_IOC_MAGIC, 2, pwm_ctrl_t)
#define PWMIOGET_LEVEL _IOWR(PWM_IOC_MAGIC, 2, pwm_ctrl_t)
#define PWM_IOC_MAXNR 3
/*--------------------- EXPORTED PRIVATE FUNCTIONS ---------------------------*/
/* extern void pwm_xxxx(vdp_Void); *//*Example*/
void pwm_set_duty(int no,unsigned int duty) ;
unsigned int pwm_get_period(int no);
unsigned int pwm_get_duty(int no);
void pwm_set_enable(int no,int enable);
unsigned int pwm_get_enable(int no);
void pwm_set_scalar(int no,unsigned int scalar);
void pwm_set_period(int no,unsigned int period);
void pwm_set_control(int no,unsigned int ctrl);
void pwm_set_gpio(int no,int enable);
unsigned int get_lcd_power(void);
#endif /* ifndef WMT_PWM_H */
/*=== END wmt-pwm.h ==========================================================*/
|
