| Donggeun Kim | 9d97e5c | 2011-09-07 18:49:08 +0900 | [diff] [blame] | 1 | /* |
| 2 | * exynos4_tmu.h - Samsung EXYNOS4 TMU (Thermal Management Unit) |
| 3 | * |
| 4 | * Copyright (C) 2011 Samsung Electronics |
| 5 | * Donggeun Kim <dg77.kim@samsung.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | #ifndef _LINUX_EXYNOS4_TMU_H |
| 23 | #define _LINUX_EXYNOS4_TMU_H |
| 24 | |
| 25 | enum calibration_type { |
| 26 | TYPE_ONE_POINT_TRIMMING, |
| 27 | TYPE_TWO_POINT_TRIMMING, |
| 28 | TYPE_NONE, |
| 29 | }; |
| 30 | |
| 31 | /** |
| 32 | * struct exynos4_tmu_platform_data |
| 33 | * @threshold: basic temperature for generating interrupt |
| 34 | * 25 <= threshold <= 125 [unit: degree Celsius] |
| 35 | * @trigger_levels: array for each interrupt levels |
| 36 | * [unit: degree Celsius] |
| 37 | * 0: temperature for trigger_level0 interrupt |
| 38 | * condition for trigger_level0 interrupt: |
| 39 | * current temperature > threshold + trigger_levels[0] |
| 40 | * 1: temperature for trigger_level1 interrupt |
| 41 | * condition for trigger_level1 interrupt: |
| 42 | * current temperature > threshold + trigger_levels[1] |
| 43 | * 2: temperature for trigger_level2 interrupt |
| 44 | * condition for trigger_level2 interrupt: |
| 45 | * current temperature > threshold + trigger_levels[2] |
| 46 | * 3: temperature for trigger_level3 interrupt |
| 47 | * condition for trigger_level3 interrupt: |
| 48 | * current temperature > threshold + trigger_levels[3] |
| 49 | * @trigger_level0_en: |
| 50 | * 1 = enable trigger_level0 interrupt, |
| 51 | * 0 = disable trigger_level0 interrupt |
| 52 | * @trigger_level1_en: |
| 53 | * 1 = enable trigger_level1 interrupt, |
| 54 | * 0 = disable trigger_level1 interrupt |
| 55 | * @trigger_level2_en: |
| 56 | * 1 = enable trigger_level2 interrupt, |
| 57 | * 0 = disable trigger_level2 interrupt |
| 58 | * @trigger_level3_en: |
| 59 | * 1 = enable trigger_level3 interrupt, |
| 60 | * 0 = disable trigger_level3 interrupt |
| 61 | * @gain: gain of amplifier in the positive-TC generator block |
| 62 | * 0 <= gain <= 15 |
| 63 | * @reference_voltage: reference voltage of amplifier |
| 64 | * in the positive-TC generator block |
| 65 | * 0 <= reference_voltage <= 31 |
| 66 | * @cal_type: calibration type for temperature |
| 67 | * |
| 68 | * This structure is required for configuration of exynos4_tmu driver. |
| 69 | */ |
| 70 | struct exynos4_tmu_platform_data { |
| 71 | u8 threshold; |
| 72 | u8 trigger_levels[4]; |
| 73 | bool trigger_level0_en; |
| 74 | bool trigger_level1_en; |
| 75 | bool trigger_level2_en; |
| 76 | bool trigger_level3_en; |
| 77 | |
| 78 | u8 gain; |
| 79 | u8 reference_voltage; |
| 80 | |
| 81 | enum calibration_type cal_type; |
| 82 | }; |
| 83 | #endif /* _LINUX_EXYNOS4_TMU_H */ |