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authorMike Frysinger <michael.frysinger@analog.com>2007-10-21 11:37:54 -0400
committerBryan Wu <bryan.wu@analog.com>2007-10-21 11:37:54 -0400
commit780431e397c82df7e20ee17536b97a08f97ef8ba (patch)
tree0a119b440b3a20665a25ed89227c6ac5058571ba /include/asm-blackfin/gptimers.h
parent29cae113720c1520cdcc8b536cf56efcba5d63e0 (diff)
Blackfin arch: cleanup and promote the general purpose timers api to a core blackfin component
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'include/asm-blackfin/gptimers.h')
-rw-r--r--include/asm-blackfin/gptimers.h210
1 files changed, 210 insertions, 0 deletions
diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h
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1/*
2 * include/asm/bf5xx_timers.h
3 *
4 * This file contains the major Data structures and constants
5 * used for General Purpose Timer Implementation in BF5xx
6 *
7 * Copyright (C) 2005 John DeHority
8 * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
9 *
10 */
11
12#ifndef _BLACKFIN_TIMERS_H_
13#define _BLACKFIN_TIMERS_H_
14
15#include <linux/types.h>
16#include <asm/blackfin.h>
17
18/*
19 * BF537/BF527: 8 timers:
20 */
21#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
22# define MAX_BLACKFIN_GPTIMERS 8
23# define TIMER0_GROUP_REG TIMER_ENABLE
24#endif
25/*
26 * BF561: 12 timers:
27 */
28#if defined(CONFIG_BF561)
29# define MAX_BLACKFIN_GPTIMERS 12
30# define TIMER0_GROUP_REG TMRS8_ENABLE
31# define TIMER8_GROUP_REG TMRS4_ENABLE
32#endif
33/*
34 * All others: 3 timers:
35 */
36#if !defined(MAX_BLACKFIN_GPTIMERS)
37# define MAX_BLACKFIN_GPTIMERS 3
38# define TIMER0_GROUP_REG TIMER_ENABLE
39#endif
40
41#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
42#define BFIN_TIMER_OCTET(x) ((x) >> 3)
43
44/* used in masks for timer_enable() and timer_disable() */
45#define TIMER0bit 0x0001 /* 0001b */
46#define TIMER1bit 0x0002 /* 0010b */
47#define TIMER2bit 0x0004 /* 0100b */
48
49#if (MAX_BLACKFIN_GPTIMERS > 3)
50# define TIMER3bit 0x0008
51# define TIMER4bit 0x0010
52# define TIMER5bit 0x0020
53# define TIMER6bit 0x0040
54# define TIMER7bit 0x0080
55#endif
56
57#if (MAX_BLACKFIN_GPTIMERS > 8)
58# define TIMER8bit 0x0100
59# define TIMER9bit 0x0200
60# define TIMER10bit 0x0400
61# define TIMER11bit 0x0800
62#endif
63
64#define TIMER0_id 0
65#define TIMER1_id 1
66#define TIMER2_id 2
67
68#if (MAX_BLACKFIN_GPTIMERS > 3)
69# define TIMER3_id 3
70# define TIMER4_id 4
71# define TIMER5_id 5
72# define TIMER6_id 6
73# define TIMER7_id 7
74#endif
75
76#if (MAX_BLACKFIN_GPTIMERS > 8)
77# define TIMER8_id 8
78# define TIMER9_id 9
79# define TIMER10_id 10
80# define TIMER11_id 11
81#endif
82
83/* associated timers for ppi framesync: */
84
85#if defined(CONFIG_BF561)
86# define FS0_1_TIMER_ID TIMER8_id
87# define FS0_2_TIMER_ID TIMER9_id
88# define FS1_1_TIMER_ID TIMER10_id
89# define FS1_2_TIMER_ID TIMER11_id
90# define FS0_1_TIMER_BIT TIMER8bit
91# define FS0_2_TIMER_BIT TIMER9bit
92# define FS1_1_TIMER_BIT TIMER10bit
93# define FS1_2_TIMER_BIT TIMER11bit
94# undef FS1_TIMER_ID
95# undef FS2_TIMER_ID
96# undef FS1_TIMER_BIT
97# undef FS2_TIMER_BIT
98#else
99# define FS1_TIMER_ID TIMER0_id
100# define FS2_TIMER_ID TIMER1_id
101# define FS1_TIMER_BIT TIMER0bit
102# define FS2_TIMER_BIT TIMER1bit
103#endif
104
105/*
106 * Timer Configuration Register Bits
107 */
108#define TIMER_ERR 0xC000
109#define TIMER_ERR_OVFL 0x4000
110#define TIMER_ERR_PROG_PER 0x8000
111#define TIMER_ERR_PROG_PW 0xC000
112#define TIMER_EMU_RUN 0x0200
113#define TIMER_TOGGLE_HI 0x0100
114#define TIMER_CLK_SEL 0x0080
115#define TIMER_OUT_DIS 0x0040
116#define TIMER_TIN_SEL 0x0020
117#define TIMER_IRQ_ENA 0x0010
118#define TIMER_PERIOD_CNT 0x0008
119#define TIMER_PULSE_HI 0x0004
120#define TIMER_MODE 0x0003
121#define TIMER_MODE_PWM 0x0001
122#define TIMER_MODE_WDTH 0x0002
123#define TIMER_MODE_EXT_CLK 0x0003
124
125/*
126 * Timer Status Register Bits
127 */
128#define TIMER_STATUS_TIMIL0 0x0001
129#define TIMER_STATUS_TIMIL1 0x0002
130#define TIMER_STATUS_TIMIL2 0x0004
131#if (MAX_BLACKFIN_GPTIMERS > 3)
132# define TIMER_STATUS_TIMIL3 0x00000008
133# define TIMER_STATUS_TIMIL4 0x00010000
134# define TIMER_STATUS_TIMIL5 0x00020000
135# define TIMER_STATUS_TIMIL6 0x00040000
136# define TIMER_STATUS_TIMIL7 0x00080000
137# if (MAX_BLACKFIN_GPTIMERS > 8)
138# define TIMER_STATUS_TIMIL8 0x0001
139# define TIMER_STATUS_TIMIL9 0x0002
140# define TIMER_STATUS_TIMIL10 0x0004
141# define TIMER_STATUS_TIMIL11 0x0008
142# endif
143# define TIMER_STATUS_INTR 0x000F000F
144#else
145# define TIMER_STATUS_INTR 0x0007 /* any timer interrupt */
146#endif
147
148#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */
149#define TIMER_STATUS_TOVF1 0x0020
150#define TIMER_STATUS_TOVF2 0x0040
151#if (MAX_BLACKFIN_GPTIMERS > 3)
152# define TIMER_STATUS_TOVF3 0x00000080
153# define TIMER_STATUS_TOVF4 0x00100000
154# define TIMER_STATUS_TOVF5 0x00200000
155# define TIMER_STATUS_TOVF6 0x00400000
156# define TIMER_STATUS_TOVF7 0x00800000
157# if (MAX_BLACKFIN_GPTIMERS > 8)
158# define TIMER_STATUS_TOVF8 0x0010
159# define TIMER_STATUS_TOVF9 0x0020
160# define TIMER_STATUS_TOVF10 0x0040
161# define TIMER_STATUS_TOVF11 0x0080
162# endif
163# define TIMER_STATUS_OFLOW 0x00F000F0
164#else
165# define TIMER_STATUS_OFLOW 0x0070 /* any timer overflow */
166#endif
167
168/*
169 * Timer Slave Enable Status : write 1 to clear
170 */
171#define TIMER_STATUS_TRUN0 0x1000
172#define TIMER_STATUS_TRUN1 0x2000
173#define TIMER_STATUS_TRUN2 0x4000
174#if (MAX_BLACKFIN_GPTIMERS > 3)
175# define TIMER_STATUS_TRUN3 0x00008000
176# define TIMER_STATUS_TRUN4 0x10000000
177# define TIMER_STATUS_TRUN5 0x20000000
178# define TIMER_STATUS_TRUN6 0x40000000
179# define TIMER_STATUS_TRUN7 0x80000000
180# define TIMER_STATUS_TRUN 0xF000F000
181# if (MAX_BLACKFIN_GPTIMERS > 8)
182# define TIMER_STATUS_TRUN8 0x1000
183# define TIMER_STATUS_TRUN9 0x2000
184# define TIMER_STATUS_TRUN10 0x4000
185# define TIMER_STATUS_TRUN11 0x8000
186# endif
187#else
188# define TIMER_STATUS_TRUN 0x7000
189#endif
190
191/* The actual gptimer API */
192
193void set_gptimer_pwidth (int timer_id, uint32_t width);
194uint32_t get_gptimer_pwidth (int timer_id);
195void set_gptimer_period (int timer_id, uint32_t period);
196uint32_t get_gptimer_period (int timer_id);
197uint32_t get_gptimer_count (int timer_id);
198uint16_t get_gptimer_intr (int timer_id);
199void clear_gptimer_intr (int timer_id);
200void set_gptimer_config (int timer_id, uint16_t config);
201uint16_t get_gptimer_config (int timer_id);
202void set_gptimer_pulse_hi (int timer_id);
203void clear_gptimer_pulse_hi(int timer_id);
204void enable_gptimers (uint16_t mask);
205void disable_gptimers (uint16_t mask);
206uint16_t get_enabled_gptimers (void);
207uint32_t get_gptimer_status (int group);
208void set_gptimer_status (int group, uint32_t value);
209
210#endif