| 1 | /*
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| 2 | * Copyright (c) 2012 Maurizio Lombardi
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 | /** @addtogroup genarch
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| 29 | * @{
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| 30 | */
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| 31 | /**
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| 32 | * @file
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| 33 | * @brief Texas Instruments AM335x timer driver.
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| 34 | */
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| 35 |
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| 36 | #ifndef _KERN_AM335X_TIMER_H_
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| 37 | #define _KERN_AM335X_TIMER_H_
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| 38 |
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| 39 | #include <genarch/drivers/am335x/timer_regs.h>
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| 40 |
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| 41 | #define AM335x_DMTIMER0_BASE_ADDRESS 0x44E05000
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| 42 | #define AM335x_DMTIMER0_SIZE 4096
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| 43 | #define AM335x_DMTIMER0_IRQ 66
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| 44 |
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| 45 | #define AM335x_DMTIMER2_BASE_ADDRESS 0x48040000
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| 46 | #define AM335x_DMTIMER2_SIZE 4096
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| 47 | #define AM335x_DMTIMER2_IRQ 68
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| 48 |
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| 49 | #define AM335x_DMTIMER3_BASE_ADDRESS 0x48042000
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| 50 | #define AM335x_DMTIMER3_SIZE 4096
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| 51 | #define AM335x_DMTIMER3_IRQ 69
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| 52 |
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| 53 | #define AM335x_DMTIMER4_BASE_ADDRESS 0x48044000
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| 54 | #define AM335x_DMTIMER4_SIZE 4096
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| 55 | #define AM335x_DMTIMER4_IRQ 92
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| 56 |
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| 57 | #define AM335x_DMTIMER5_BASE_ADDRESS 0x48046000
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| 58 | #define AM335x_DMTIMER5_SIZE 4096
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| 59 | #define AM335x_DMTIMER5_IRQ 93
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| 60 |
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| 61 | #define AM335x_DMTIMER6_BASE_ADDRESS 0x48048000
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| 62 | #define AM335x_DMTIMER6_SIZE 4096
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| 63 | #define AM335x_DMTIMER6_IRQ 94
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| 64 |
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| 65 | #define AM335x_DMTIMER7_BASE_ADDRESS 0x4804A000
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| 66 | #define AM335x_DMTIMER7_SIZE 4096
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| 67 | #define AM335x_DMTIMER7_IRQ 95
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| 68 |
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| 69 | typedef enum {
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| 70 | DMTIMER0 = 0,
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| 71 | DMTIMER1_1MS,
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| 72 | DMTIMER2,
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| 73 | DMTIMER3,
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| 74 | DMTIMER4,
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| 75 | DMTIMER5,
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| 76 | DMTIMER6,
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| 77 | DMTIMER7,
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| 78 |
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| 79 | TIMERS_MAX
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| 80 | } am335x_timer_id_t;
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| 81 |
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| 82 | typedef struct am335x_timer {
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| 83 | am335x_timer_regs_t *regs;
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| 84 | am335x_timer_id_t id;
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| 85 | } am335x_timer_t;
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| 86 |
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| 87 | extern void am335x_timer_init(am335x_timer_t *timer, am335x_timer_id_t id,
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| 88 | unsigned hz, unsigned srcclk_hz);
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| 89 | extern void am335x_timer_intr_ack(am335x_timer_t *timer);
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| 90 | extern void am335x_timer_reset(am335x_timer_t *timer);
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| 91 | extern void am335x_timer_start(am335x_timer_t *timer);
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| 92 | extern void am335x_timer_stop(am335x_timer_t *timer);
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| 93 |
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| 94 |
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| 95 | #endif
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| 96 |
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| 97 | /**
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| 98 | * @}
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| 99 | */
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| 100 |
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