2 * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
4 * Copyright (c) 2005-2008 Analog Devices Inc.
5 * Copyright (C) 2005 John DeHority
6 * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
8 * Licensed under the GPL-2.
11 #ifndef _BLACKFIN_TIMERS_H_
12 #define _BLACKFIN_TIMERS_H_
14 #include <linux/types.h>
15 #include <asm/blackfin.h>
18 * BF537/BF527: 8 timers:
20 #if defined(BF527_FAMILY) || defined(BF537_FAMILY)
21 # define MAX_BLACKFIN_GPTIMERS 8
22 # define TIMER0_GROUP_REG TIMER_ENABLE
27 #if defined(CONFIG_BF561)
28 # define MAX_BLACKFIN_GPTIMERS 12
29 # define TIMER0_GROUP_REG TMRS8_ENABLE
30 # define TIMER8_GROUP_REG TMRS4_ENABLE
33 * All others: 3 timers:
35 #if !defined(MAX_BLACKFIN_GPTIMERS)
36 # define MAX_BLACKFIN_GPTIMERS 3
37 # define TIMER0_GROUP_REG TIMER_ENABLE
40 #define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
41 #define BFIN_TIMER_OCTET(x) ((x) >> 3)
43 /* used in masks for timer_enable() and timer_disable() */
44 #define TIMER0bit 0x0001 /* 0001b */
45 #define TIMER1bit 0x0002 /* 0010b */
46 #define TIMER2bit 0x0004 /* 0100b */
48 #if (MAX_BLACKFIN_GPTIMERS > 3)
49 # define TIMER3bit 0x0008
50 # define TIMER4bit 0x0010
51 # define TIMER5bit 0x0020
52 # define TIMER6bit 0x0040
53 # define TIMER7bit 0x0080
56 #if (MAX_BLACKFIN_GPTIMERS > 8)
57 # define TIMER8bit 0x0100
58 # define TIMER9bit 0x0200
59 # define TIMER10bit 0x0400
60 # define TIMER11bit 0x0800
67 #if (MAX_BLACKFIN_GPTIMERS > 3)
75 #if (MAX_BLACKFIN_GPTIMERS > 8)
78 # define TIMER10_id 10
79 # define TIMER11_id 11
82 /* associated timers for ppi framesync: */
84 #if defined(CONFIG_BF561)
85 # define FS0_1_TIMER_ID TIMER8_id
86 # define FS0_2_TIMER_ID TIMER9_id
87 # define FS1_1_TIMER_ID TIMER10_id
88 # define FS1_2_TIMER_ID TIMER11_id
89 # define FS0_1_TIMER_BIT TIMER8bit
90 # define FS0_2_TIMER_BIT TIMER9bit
91 # define FS1_1_TIMER_BIT TIMER10bit
92 # define FS1_2_TIMER_BIT TIMER11bit
98 # define FS1_TIMER_ID TIMER0_id
99 # define FS2_TIMER_ID TIMER1_id
100 # define FS1_TIMER_BIT TIMER0bit
101 # define FS2_TIMER_BIT TIMER1bit
105 * Timer Configuration Register Bits
107 #define TIMER_ERR 0xC000
108 #define TIMER_ERR_OVFL 0x4000
109 #define TIMER_ERR_PROG_PER 0x8000
110 #define TIMER_ERR_PROG_PW 0xC000
111 #define TIMER_EMU_RUN 0x0200
112 #define TIMER_TOGGLE_HI 0x0100
113 #define TIMER_CLK_SEL 0x0080
114 #define TIMER_OUT_DIS 0x0040
115 #define TIMER_TIN_SEL 0x0020
116 #define TIMER_IRQ_ENA 0x0010
117 #define TIMER_PERIOD_CNT 0x0008
118 #define TIMER_PULSE_HI 0x0004
119 #define TIMER_MODE 0x0003
120 #define TIMER_MODE_PWM 0x0001
121 #define TIMER_MODE_WDTH 0x0002
122 #define TIMER_MODE_EXT_CLK 0x0003
125 * Timer Status Register Bits
127 #define TIMER_STATUS_TIMIL0 0x0001
128 #define TIMER_STATUS_TIMIL1 0x0002
129 #define TIMER_STATUS_TIMIL2 0x0004
130 #if (MAX_BLACKFIN_GPTIMERS > 3)
131 # define TIMER_STATUS_TIMIL3 0x00000008
132 # define TIMER_STATUS_TIMIL4 0x00010000
133 # define TIMER_STATUS_TIMIL5 0x00020000
134 # define TIMER_STATUS_TIMIL6 0x00040000
135 # define TIMER_STATUS_TIMIL7 0x00080000
136 # if (MAX_BLACKFIN_GPTIMERS > 8)
137 # define TIMER_STATUS_TIMIL8 0x0001
138 # define TIMER_STATUS_TIMIL9 0x0002
139 # define TIMER_STATUS_TIMIL10 0x0004
140 # define TIMER_STATUS_TIMIL11 0x0008
142 # define TIMER_STATUS_INTR 0x000F000F
144 # define TIMER_STATUS_INTR 0x0007 /* any timer interrupt */
147 #define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */
148 #define TIMER_STATUS_TOVF1 0x0020
149 #define TIMER_STATUS_TOVF2 0x0040
150 #if (MAX_BLACKFIN_GPTIMERS > 3)
151 # define TIMER_STATUS_TOVF3 0x00000080
152 # define TIMER_STATUS_TOVF4 0x00100000
153 # define TIMER_STATUS_TOVF5 0x00200000
154 # define TIMER_STATUS_TOVF6 0x00400000
155 # define TIMER_STATUS_TOVF7 0x00800000
156 # if (MAX_BLACKFIN_GPTIMERS > 8)
157 # define TIMER_STATUS_TOVF8 0x0010
158 # define TIMER_STATUS_TOVF9 0x0020
159 # define TIMER_STATUS_TOVF10 0x0040
160 # define TIMER_STATUS_TOVF11 0x0080
162 # define TIMER_STATUS_OFLOW 0x00F000F0
164 # define TIMER_STATUS_OFLOW 0x0070 /* any timer overflow */
168 * Timer Slave Enable Status : write 1 to clear
170 #define TIMER_STATUS_TRUN0 0x1000
171 #define TIMER_STATUS_TRUN1 0x2000
172 #define TIMER_STATUS_TRUN2 0x4000
173 #if (MAX_BLACKFIN_GPTIMERS > 3)
174 # define TIMER_STATUS_TRUN3 0x00008000
175 # define TIMER_STATUS_TRUN4 0x10000000
176 # define TIMER_STATUS_TRUN5 0x20000000
177 # define TIMER_STATUS_TRUN6 0x40000000
178 # define TIMER_STATUS_TRUN7 0x80000000
179 # define TIMER_STATUS_TRUN 0xF000F000
180 # if (MAX_BLACKFIN_GPTIMERS > 8)
181 # define TIMER_STATUS_TRUN8 0x1000
182 # define TIMER_STATUS_TRUN9 0x2000
183 # define TIMER_STATUS_TRUN10 0x4000
184 # define TIMER_STATUS_TRUN11 0x8000
187 # define TIMER_STATUS_TRUN 0x7000
190 /* The actual gptimer API */
192 void set_gptimer_pwidth (int timer_id, uint32_t width);
193 uint32_t get_gptimer_pwidth (int timer_id);
194 void set_gptimer_period (int timer_id, uint32_t period);
195 uint32_t get_gptimer_period (int timer_id);
196 uint32_t get_gptimer_count (int timer_id);
197 uint16_t get_gptimer_intr (int timer_id);
198 void clear_gptimer_intr (int timer_id);
199 uint16_t get_gptimer_over (int timer_id);
200 void clear_gptimer_over (int timer_id);
201 void set_gptimer_config (int timer_id, uint16_t config);
202 uint16_t get_gptimer_config (int timer_id);
203 void set_gptimer_pulse_hi (int timer_id);
204 void clear_gptimer_pulse_hi(int timer_id);
205 void enable_gptimers (uint16_t mask);
206 void disable_gptimers (uint16_t mask);
207 uint16_t get_enabled_gptimers (void);
208 uint32_t get_gptimer_status (int group);
209 void set_gptimer_status (int group, uint32_t value);