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gerrit-public.fairphone.software / kernel / msm-4.19 / 6b4bfb87b638a4f114dfb6f72f4ac1be88a4ebe4 / . / arch / arm / plat-omap / include / mach / dmtimer.h
blob: 20f1054c0a804bf541fb313b27f896a45b6fbaa3 [file] [log] [blame]
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]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
47struct omap_dm_timer;
48struct clk;
49
50int omap_dm_timer_init(void);
51
52struct omap_dm_timer *omap_dm_timer_request(void);
53struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
54void omap_dm_timer_free(struct omap_dm_timer *timer);
55void omap_dm_timer_enable(struct omap_dm_timer *timer);
56void omap_dm_timer_disable(struct omap_dm_timer *timer);
57
58int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
59
60u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
61struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer);
62
63void omap_dm_timer_trigger(struct omap_dm_timer *timer);
64void omap_dm_timer_start(struct omap_dm_timer *timer);
65void omap_dm_timer_stop(struct omap_dm_timer *timer);
66
Paul Walmsleyf2480762009-04-23 21:11:10 -0600[diff] [blame]67int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source);
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]68void omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload, unsigned int value);
69void omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload, unsigned int value);
70void omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, unsigned int match);
71void omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, int toggle, int trigger);
72void omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler);
73
74void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, unsigned int value);
75
76unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer);
77void omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value);
78unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer);
79void omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value);
80
81int omap_dm_timers_active(void);
82
83
84#endif /* __ASM_ARCH_DMTIMER_H */