projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| f99c1d4f K |
1 | /* |
| 2 | * twl4030_madc.h - Header for TWL4030 MADC | |
| 3 | * | |
| 4 | * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ | |
| 5 | * J Keerthy <j-keerthy@ti.com> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License | |
| 9 | * version 2 as published by the Free Software Foundation. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, but | |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 19 | * 02110-1301 USA | |
| 20 | * | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef _TWL4030_MADC_H | |
| 24 | #define _TWL4030_MADC_H | |
| 25 | ||
| 26 | struct twl4030_madc_conversion_method { | |
| 27 | u8 sel; | |
| 28 | u8 avg; | |
| 29 | u8 rbase; | |
| 30 | u8 ctrl; | |
| 31 | }; | |
| 32 | ||
| 33 | #define TWL4030_MADC_MAX_CHANNELS 16 | |
| 34 | ||
| 35 | ||
| 36 | /* | |
| 37 | * twl4030_madc_request- madc request packet for channel conversion | |
| 38 | * @channels: 16 bit bitmap for individual channels | |
| 39 | * @do_avgP: sample the input channel for 4 consecutive cycles | |
| 40 | * @method: RT, SW1, SW2 | |
| 41 | * @type: Polling or interrupt based method | |
| 42 | */ | |
| 43 | ||
| 44 | struct twl4030_madc_request { | |
| 45 | unsigned long channels; | |
| 46 | u16 do_avg; | |
| 47 | u16 method; | |
| 48 | u16 type; | |
| 49 | bool active; | |
| 50 | bool result_pending; | |
| 51 | int rbuf[TWL4030_MADC_MAX_CHANNELS]; | |
| 52 | void (*func_cb)(int len, int channels, int *buf); | |
| 53 | }; | |
| 54 | ||
| 55 | enum conversion_methods { | |
| 56 | TWL4030_MADC_RT, | |
| 57 | TWL4030_MADC_SW1, | |
| 58 | TWL4030_MADC_SW2, | |
| 59 | TWL4030_MADC_NUM_METHODS | |
| 60 | }; | |
| 61 | ||
| 62 | enum sample_type { | |
| 63 | TWL4030_MADC_WAIT, | |
| 64 | TWL4030_MADC_IRQ_ONESHOT, | |
| 65 | TWL4030_MADC_IRQ_REARM | |
| 66 | }; | |
| 67 | ||
| 68 | #define TWL4030_MADC_CTRL1 0x00 | |
| 69 | #define TWL4030_MADC_CTRL2 0x01 | |
| 70 | ||
| 71 | #define TWL4030_MADC_RTSELECT_LSB 0x02 | |
| 72 | #define TWL4030_MADC_SW1SELECT_LSB 0x06 | |
| 73 | #define TWL4030_MADC_SW2SELECT_LSB 0x0A | |
| 74 | ||
| 75 | #define TWL4030_MADC_RTAVERAGE_LSB 0x04 | |
| 76 | #define TWL4030_MADC_SW1AVERAGE_LSB 0x08 | |
| 77 | #define TWL4030_MADC_SW2AVERAGE_LSB 0x0C | |
| 78 | ||
| 79 | #define TWL4030_MADC_CTRL_SW1 0x12 | |
| 80 | #define TWL4030_MADC_CTRL_SW2 0x13 | |
| 81 | ||
| 82 | #define TWL4030_MADC_RTCH0_LSB 0x17 | |
| 83 | #define TWL4030_MADC_GPCH0_LSB 0x37 | |
| 84 | ||
| 85 | #define TWL4030_MADC_MADCON (1 << 0) /* MADC power on */ | |
| 86 | #define TWL4030_MADC_BUSY (1 << 0) /* MADC busy */ | |
| 87 | /* MADC conversion completion */ | |
| 88 | #define TWL4030_MADC_EOC_SW (1 << 1) | |
| 89 | /* MADC SWx start conversion */ | |
| 90 | #define TWL4030_MADC_SW_START (1 << 5) | |
| 91 | #define TWL4030_MADC_ADCIN0 (1 << 0) | |
| 92 | #define TWL4030_MADC_ADCIN1 (1 << 1) | |
| 93 | #define TWL4030_MADC_ADCIN2 (1 << 2) | |
| 94 | #define TWL4030_MADC_ADCIN3 (1 << 3) | |
| 95 | #define TWL4030_MADC_ADCIN4 (1 << 4) | |
| 96 | #define TWL4030_MADC_ADCIN5 (1 << 5) | |
| 97 | #define TWL4030_MADC_ADCIN6 (1 << 6) | |
| 98 | #define TWL4030_MADC_ADCIN7 (1 << 7) | |
| 99 | #define TWL4030_MADC_ADCIN8 (1 << 8) | |
| 100 | #define TWL4030_MADC_ADCIN9 (1 << 9) | |
| 101 | #define TWL4030_MADC_ADCIN10 (1 << 10) | |
| 102 | #define TWL4030_MADC_ADCIN11 (1 << 11) | |
| 103 | #define TWL4030_MADC_ADCIN12 (1 << 12) | |
| 104 | #define TWL4030_MADC_ADCIN13 (1 << 13) | |
| 105 | #define TWL4030_MADC_ADCIN14 (1 << 14) | |
| 106 | #define TWL4030_MADC_ADCIN15 (1 << 15) | |
| 107 | ||
| 108 | /* Fixed channels */ | |
| 109 | #define TWL4030_MADC_BTEMP TWL4030_MADC_ADCIN1 | |
| 110 | #define TWL4030_MADC_VBUS TWL4030_MADC_ADCIN8 | |
| 111 | #define TWL4030_MADC_VBKB TWL4030_MADC_ADCIN9 | |
| 112 | #define TWL4030_MADC_ICHG TWL4030_MADC_ADCIN10 | |
| 113 | #define TWL4030_MADC_VCHG TWL4030_MADC_ADCIN11 | |
| 114 | #define TWL4030_MADC_VBAT TWL4030_MADC_ADCIN12 | |
| 115 | ||
| 116 | /* Step size and prescaler ratio */ | |
| 117 | #define TEMP_STEP_SIZE 147 | |
| 118 | #define TEMP_PSR_R 100 | |
| 119 | #define CURR_STEP_SIZE 147 | |
| 120 | #define CURR_PSR_R1 44 | |
| 121 | #define CURR_PSR_R2 88 | |
| 122 | ||
| 123 | #define TWL4030_BCI_BCICTL1 0x23 | |
| 124 | #define TWL4030_BCI_CGAIN 0x020 | |
| 125 | #define TWL4030_BCI_MESBAT (1 << 1) | |
| 126 | #define TWL4030_BCI_TYPEN (1 << 4) | |
| 127 | #define TWL4030_BCI_ITHEN (1 << 3) | |
| 128 | ||
| 129 | #define REG_BCICTL2 0x024 | |
| 130 | #define TWL4030_BCI_ITHSENS 0x007 | |
| 131 | ||
| 132 | struct twl4030_madc_user_parms { | |
| 133 | int channel; | |
| 134 | int average; | |
| 135 | int status; | |
| 136 | u16 result; | |
| 137 | }; | |
| 138 | ||
| 139 | int twl4030_madc_conversion(struct twl4030_madc_request *conv); | |
| 140 | int twl4030_get_madc_conversion(int channel_no); | |
| 141 | #endif |