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 67int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source); 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 */ 85