2 * arch/arm/plat-omap/include/mach/dmtimer.h
4 * OMAP Dual-Mode Timers
6 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
7 * Tarun Kanti DebBarma <tarun.kanti@ti.com>
8 * Thara Gopinath <thara@ti.com>
10 * Platform device conversion and hwmod support.
12 * Copyright (C) 2005 Nokia Corporation
13 * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
14 * PWM and clock framwork support by Timo Teras.
16 * This program is free software; you can redistribute it and/or modify it
17 * under the terms of the GNU General Public License as published by the
18 * Free Software Foundation; either version 2 of the License, or (at your
19 * option) any later version.
21 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
24 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * You should have received a copy of the GNU General Public License along
31 * with this program; if not, write to the Free Software Foundation, Inc.,
32 * 675 Mass Ave, Cambridge, MA 02139, USA.
35 #ifndef __ASM_ARCH_DMTIMER_H
36 #define __ASM_ARCH_DMTIMER_H
39 #define OMAP_TIMER_SRC_SYS_CLK 0x00
40 #define OMAP_TIMER_SRC_32_KHZ 0x01
41 #define OMAP_TIMER_SRC_EXT_CLK 0x02
43 /* timer interrupt enable bits */
44 #define OMAP_TIMER_INT_CAPTURE (1 << 2)
45 #define OMAP_TIMER_INT_OVERFLOW (1 << 1)
46 #define OMAP_TIMER_INT_MATCH (1 << 0)
49 #define OMAP_TIMER_TRIGGER_NONE 0x00
50 #define OMAP_TIMER_TRIGGER_OVERFLOW 0x01
51 #define OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02
54 * IP revision identifier so that Highlander IP
55 * in OMAP4 can be distinguished.
57 #define OMAP_TIMER_IP_VERSION_1 0x1
59 extern struct omap_dm_timer *gptimer_wakeup;
62 int omap_dm_timer_init(void);
64 struct omap_dm_timer *omap_dm_timer_request(void);
65 struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
66 void omap_dm_timer_free(struct omap_dm_timer *timer);
67 void omap_dm_timer_enable(struct omap_dm_timer *timer);
68 void omap_dm_timer_disable(struct omap_dm_timer *timer);
70 int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
72 u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
73 struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer);
75 void omap_dm_timer_trigger(struct omap_dm_timer *timer);
76 void omap_dm_timer_start(struct omap_dm_timer *timer);
77 void omap_dm_timer_stop(struct omap_dm_timer *timer);
79 int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source);
80 void omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload, unsigned int value);
81 void omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload, unsigned int value);
82 void omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, unsigned int match);
83 void omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, int toggle, int trigger);
84 void omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler);
86 void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, unsigned int value);
88 unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer);
89 void omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value);
90 unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer);
91 void omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value);
93 int omap_dm_timers_active(void);
96 #endif /* __ASM_ARCH_DMTIMER_H */