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1 | /* |
2 | * include/linux/platform_data/pwm_omap_dmtimer.h | |
3 | * | |
4 | * OMAP Dual-Mode Timer PWM platform data | |
5 | * | |
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> | |
9 | * | |
10 | * Platform device conversion and hwmod support. | |
11 | * | |
12 | * Copyright (C) 2005 Nokia Corporation | |
13 | * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com> | |
14 | * PWM and clock framework support by Timo Teras. | |
15 | * | |
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. | |
20 | * | |
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. | |
29 | * | |
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. | |
33 | */ | |
34 | ||
35 | #ifndef __PWM_OMAP_DMTIMER_PDATA_H | |
36 | #define __PWM_OMAP_DMTIMER_PDATA_H | |
37 | ||
8453c5ca TL |
38 | /* clock sources */ |
39 | #define PWM_OMAP_DMTIMER_SRC_SYS_CLK 0x00 | |
40 | #define PWM_OMAP_DMTIMER_SRC_32_KHZ 0x01 | |
41 | #define PWM_OMAP_DMTIMER_SRC_EXT_CLK 0x02 | |
42 | ||
43 | /* timer interrupt enable bits */ | |
44 | #define PWM_OMAP_DMTIMER_INT_CAPTURE (1 << 2) | |
45 | #define PWM_OMAP_DMTIMER_INT_OVERFLOW (1 << 1) | |
46 | #define PWM_OMAP_DMTIMER_INT_MATCH (1 << 0) | |
47 | ||
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48 | /* trigger types */ |
49 | #define PWM_OMAP_DMTIMER_TRIGGER_NONE 0x00 | |
50 | #define PWM_OMAP_DMTIMER_TRIGGER_OVERFLOW 0x01 | |
51 | #define PWM_OMAP_DMTIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02 | |
52 | ||
53 | struct omap_dm_timer; | |
54 | typedef struct omap_dm_timer pwm_omap_dmtimer; | |
55 | ||
56 | struct pwm_omap_dmtimer_pdata { | |
57 | pwm_omap_dmtimer *(*request_by_node)(struct device_node *np); | |
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58 | pwm_omap_dmtimer *(*request_specific)(int timer_id); |
59 | pwm_omap_dmtimer *(*request)(void); | |
60 | ||
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61 | int (*free)(pwm_omap_dmtimer *timer); |
62 | ||
63 | void (*enable)(pwm_omap_dmtimer *timer); | |
64 | void (*disable)(pwm_omap_dmtimer *timer); | |
65 | ||
8453c5ca TL |
66 | int (*get_irq)(pwm_omap_dmtimer *timer); |
67 | int (*set_int_enable)(pwm_omap_dmtimer *timer, unsigned int value); | |
68 | int (*set_int_disable)(pwm_omap_dmtimer *timer, u32 mask); | |
69 | ||
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70 | struct clk *(*get_fclk)(pwm_omap_dmtimer *timer); |
71 | ||
72 | int (*start)(pwm_omap_dmtimer *timer); | |
73 | int (*stop)(pwm_omap_dmtimer *timer); | |
8453c5ca | 74 | int (*set_source)(pwm_omap_dmtimer *timer, int source); |
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75 | |
76 | int (*set_load)(pwm_omap_dmtimer *timer, int autoreload, | |
77 | unsigned int value); | |
78 | int (*set_match)(pwm_omap_dmtimer *timer, int enable, | |
79 | unsigned int match); | |
80 | int (*set_pwm)(pwm_omap_dmtimer *timer, int def_on, | |
81 | int toggle, int trigger); | |
82 | int (*set_prescaler)(pwm_omap_dmtimer *timer, int prescaler); | |
83 | ||
8453c5ca | 84 | unsigned int (*read_counter)(pwm_omap_dmtimer *timer); |
6604c655 | 85 | int (*write_counter)(pwm_omap_dmtimer *timer, unsigned int value); |
8453c5ca TL |
86 | unsigned int (*read_status)(pwm_omap_dmtimer *timer); |
87 | int (*write_status)(pwm_omap_dmtimer *timer, unsigned int value); | |
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88 | }; |
89 | ||
90 | #endif /* __PWM_OMAP_DMTIMER_PDATA_H */ |