Merge branch 'l2x0-pull-rmk' of git://dev.omapzoom.org/pub/scm/santosh/kernel-omap4...
[pandora-kernel.git] / arch / arm / plat-omap / include / plat / dmtimer.h
1 /*
2  * arch/arm/plat-omap/include/mach/dmtimer.h
3  *
4  * OMAP Dual-Mode Timers
5  *
6  * Copyright (C) 2005 Nokia Corporation
7  * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
8  * PWM and clock framwork support by Timo Teras.
9  *
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU General Public License as published by the
12  * Free Software Foundation; either version 2 of the License, or (at your
13  * option) any later version.
14  *
15  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
16  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  *
24  * You should have received a copy of the  GNU General Public License along
25  * with this program; if not, write  to the Free Software Foundation, Inc.,
26  * 675 Mass Ave, Cambridge, MA 02139, USA.
27  */
28
29 #ifndef __ASM_ARCH_DMTIMER_H
30 #define __ASM_ARCH_DMTIMER_H
31
32 /* clock sources */
33 #define OMAP_TIMER_SRC_SYS_CLK                  0x00
34 #define OMAP_TIMER_SRC_32_KHZ                   0x01
35 #define OMAP_TIMER_SRC_EXT_CLK                  0x02
36
37 /* timer interrupt enable bits */
38 #define OMAP_TIMER_INT_CAPTURE                  (1 << 2)
39 #define OMAP_TIMER_INT_OVERFLOW                 (1 << 1)
40 #define OMAP_TIMER_INT_MATCH                    (1 << 0)
41
42 /* trigger types */
43 #define OMAP_TIMER_TRIGGER_NONE                 0x00
44 #define OMAP_TIMER_TRIGGER_OVERFLOW             0x01
45 #define OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02
46
47 struct omap_dm_timer;
48 extern struct omap_dm_timer *gptimer_wakeup;
49 extern struct sys_timer omap_timer;
50 struct clk;
51
52 int omap_dm_timer_init(void);
53
54 struct omap_dm_timer *omap_dm_timer_request(void);
55 struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
56 void omap_dm_timer_free(struct omap_dm_timer *timer);
57 void omap_dm_timer_enable(struct omap_dm_timer *timer);
58 void omap_dm_timer_disable(struct omap_dm_timer *timer);
59
60 int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
61
62 u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
63 struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer);
64
65 void omap_dm_timer_trigger(struct omap_dm_timer *timer);
66 void omap_dm_timer_start(struct omap_dm_timer *timer);
67 void omap_dm_timer_stop(struct omap_dm_timer *timer);
68
69 int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source);
70 void omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload, unsigned int value);
71 void omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload, unsigned int value);
72 void omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, unsigned int match);
73 void omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, int toggle, int trigger);
74 void omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler);
75
76 void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, unsigned int value);
77
78 unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer);
79 void omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value);
80 unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer);
81 void omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value);
82
83 int omap_dm_timers_active(void);
84
85
86 #endif /* __ASM_ARCH_DMTIMER_H */