summaryrefslogtreecommitdiffstats
path: root/include/asm-blackfin/gptimers.h
blob: 4f318f1fd2d901214b5771c53d3e19854db971c6 (plain)
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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
/*
 * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
 *
 * Copyright (c) 2005-2008 Analog Devices Inc.
 * Copyright (C) 2005 John DeHority
 * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
 *
 * Licensed under the GPL-2.
 */

#ifndef _BLACKFIN_TIMERS_H_
#define _BLACKFIN_TIMERS_H_

#include <linux/types.h>
#include <asm/blackfin.h>

/*
 * BF537/BF527: 8 timers:
 */
#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
# define MAX_BLACKFIN_GPTIMERS 8
# define TIMER0_GROUP_REG      TIMER_ENABLE
#endif
/*
 * BF561: 12 timers:
 */
#if defined(CONFIG_BF561)
# define MAX_BLACKFIN_GPTIMERS 12
# define TIMER0_GROUP_REG      TMRS8_ENABLE
# define TIMER8_GROUP_REG      TMRS4_ENABLE
#endif
/*
 * All others: 3 timers:
 */
#if !defined(MAX_BLACKFIN_GPTIMERS)
# define MAX_BLACKFIN_GPTIMERS 3
# define TIMER0_GROUP_REG      TIMER_ENABLE
#endif

#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
#define BFIN_TIMER_OCTET(x) ((x) >> 3)

/* used in masks for timer_enable() and timer_disable() */
#define TIMER0bit  0x0001  /*  0001b */
#define TIMER1bit  0x0002  /*  0010b */
#define TIMER2bit  0x0004  /*  0100b */

#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER3bit  0x0008
# define TIMER4bit  0x0010
# define TIMER5bit  0x0020
# define TIMER6bit  0x0040
# define TIMER7bit  0x0080
#endif

#if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER8bit  0x0100
# define TIMER9bit  0x0200
# define TIMER10bit 0x0400
# define TIMER11bit 0x0800
#endif

#define TIMER0_id   0
#define TIMER1_id   1
#define TIMER2_id   2

#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER3_id   3
# define TIMER4_id   4
# define TIMER5_id   5
# define TIMER6_id   6
# define TIMER7_id   7
#endif

#if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER8_id   8
# define TIMER9_id   9
# define TIMER10_id 10
# define TIMER11_id 11
#endif

/* associated timers for ppi framesync: */

#if defined(CONFIG_BF561)
# define FS0_1_TIMER_ID   TIMER8_id
# define FS0_2_TIMER_ID   TIMER9_id
# define FS1_1_TIMER_ID   TIMER10_id
# define FS1_2_TIMER_ID   TIMER11_id
# define FS0_1_TIMER_BIT  TIMER8bit
# define FS0_2_TIMER_BIT  TIMER9bit
# define FS1_1_TIMER_BIT  TIMER10bit
# define FS1_2_TIMER_BIT  TIMER11bit
# undef FS1_TIMER_ID
# undef FS2_TIMER_ID
# undef FS1_TIMER_BIT
# undef FS2_TIMER_BIT
#else
# define FS1_TIMER_ID  TIMER0_id
# define FS2_TIMER_ID  TIMER1_id
# define FS1_TIMER_BIT TIMER0bit
# define FS2_TIMER_BIT TIMER1bit
#endif

/*
 * Timer Configuration Register Bits
 */
#define TIMER_ERR           0xC000
#define TIMER_ERR_OVFL      0x4000
#define TIMER_ERR_PROG_PER  0x8000
#define TIMER_ERR_PROG_PW   0xC000
#define TIMER_EMU_RUN       0x0200
#define	TIMER_TOGGLE_HI     0x0100
#define	TIMER_CLK_SEL       0x0080
#define TIMER_OUT_DIS       0x0040
#define TIMER_TIN_SEL       0x0020
#define TIMER_IRQ_ENA       0x0010
#define TIMER_PERIOD_CNT    0x0008
#define TIMER_PULSE_HI      0x0004
#define TIMER_MODE          0x0003
#define TIMER_MODE_PWM      0x0001
#define TIMER_MODE_WDTH     0x0002
#define TIMER_MODE_EXT_CLK  0x0003

/*
 * Timer Status Register Bits
 */
#define TIMER_STATUS_TIMIL0 0x0001
#define TIMER_STATUS_TIMIL1 0x0002
#define TIMER_STATUS_TIMIL2 0x0004
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER_STATUS_TIMIL3 0x00000008
# define TIMER_STATUS_TIMIL4 0x00010000
# define TIMER_STATUS_TIMIL5 0x00020000
# define TIMER_STATUS_TIMIL6 0x00040000
# define TIMER_STATUS_TIMIL7 0x00080000
# if (MAX_BLACKFIN_GPTIMERS > 8)
#  define TIMER_STATUS_TIMIL8  0x0001
#  define TIMER_STATUS_TIMIL9  0x0002
#  define TIMER_STATUS_TIMIL10 0x0004
#  define TIMER_STATUS_TIMIL11 0x0008
# endif
# define TIMER_STATUS_INTR   0x000F000F
#else
# define TIMER_STATUS_INTR   0x0007	/* any timer interrupt */
#endif

#define TIMER_STATUS_TOVF0  0x0010	/* timer 0 overflow error */
#define TIMER_STATUS_TOVF1  0x0020
#define TIMER_STATUS_TOVF2  0x0040
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER_STATUS_TOVF3  0x00000080
# define TIMER_STATUS_TOVF4  0x00100000
# define TIMER_STATUS_TOVF5  0x00200000
# define TIMER_STATUS_TOVF6  0x00400000
# define TIMER_STATUS_TOVF7  0x00800000
# if (MAX_BLACKFIN_GPTIMERS > 8)
#  define TIMER_STATUS_TOVF8   0x0010
#  define TIMER_STATUS_TOVF9   0x0020
#  define TIMER_STATUS_TOVF10  0x0040
#  define TIMER_STATUS_TOVF11  0x0080
# endif
# define TIMER_STATUS_OFLOW  0x00F000F0
#else
# define TIMER_STATUS_OFLOW  0x0070	/* any timer overflow */
#endif

/*
 * Timer Slave Enable Status : write 1 to clear
 */
#define TIMER_STATUS_TRUN0  0x1000
#define TIMER_STATUS_TRUN1  0x2000
#define TIMER_STATUS_TRUN2  0x4000
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER_STATUS_TRUN3  0x00008000
# define TIMER_STATUS_TRUN4  0x10000000
# define TIMER_STATUS_TRUN5  0x20000000
# define TIMER_STATUS_TRUN6  0x40000000
# define TIMER_STATUS_TRUN7  0x80000000
# define TIMER_STATUS_TRUN   0xF000F000
# if (MAX_BLACKFIN_GPTIMERS > 8)
#  define TIMER_STATUS_TRUN8  0x1000
#  define TIMER_STATUS_TRUN9  0x2000
#  define TIMER_STATUS_TRUN10 0x4000
#  define TIMER_STATUS_TRUN11 0x8000
# endif
#else
# define TIMER_STATUS_TRUN   0x7000
#endif

/* The actual gptimer API */

void     set_gptimer_pwidth    (int timer_id, uint32_t width);
uint32_t get_gptimer_pwidth    (int timer_id);
void     set_gptimer_period    (int timer_id, uint32_t period);
uint32_t get_gptimer_period    (int timer_id);
uint32_t get_gptimer_count     (int timer_id);
uint16_t get_gptimer_intr      (int timer_id);
void     clear_gptimer_intr    (int timer_id);
uint16_t get_gptimer_over      (int timer_id);
void     clear_gptimer_over    (int timer_id);
void     set_gptimer_config    (int timer_id, uint16_t config);
uint16_t get_gptimer_config    (int timer_id);
void     set_gptimer_pulse_hi  (int timer_id);
void     clear_gptimer_pulse_hi(int timer_id);
void     enable_gptimers       (uint16_t mask);
void     disable_gptimers      (uint16_t mask);
uint16_t get_enabled_gptimers  (void);
uint32_t get_gptimer_status    (int group);
void     set_gptimer_status    (int group, uint32_t value);

#endif