Add linux-next specific files for 20110831
[linux-2.6/next.git] / include / linux / i2c / twl4030-madc.h
blob530e11ba07387bfa7da5c32c800e341a9f1c4d7d
1 /*
2 * twl4030_madc.h - Header for TWL4030 MADC
4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
5 * J Keerthy <j-keerthy@ti.com>
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.
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.
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
23 #ifndef _TWL4030_MADC_H
24 #define _TWL4030_MADC_H
26 struct twl4030_madc_conversion_method {
27 u8 sel;
28 u8 avg;
29 u8 rbase;
30 u8 ctrl;
33 #define TWL4030_MADC_MAX_CHANNELS 16
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
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);
55 enum conversion_methods {
56 TWL4030_MADC_RT,
57 TWL4030_MADC_SW1,
58 TWL4030_MADC_SW2,
59 TWL4030_MADC_NUM_METHODS
62 enum sample_type {
63 TWL4030_MADC_WAIT,
64 TWL4030_MADC_IRQ_ONESHOT,
65 TWL4030_MADC_IRQ_REARM
68 #define TWL4030_MADC_CTRL1 0x00
69 #define TWL4030_MADC_CTRL2 0x01
71 #define TWL4030_MADC_RTSELECT_LSB 0x02
72 #define TWL4030_MADC_SW1SELECT_LSB 0x06
73 #define TWL4030_MADC_SW2SELECT_LSB 0x0A
75 #define TWL4030_MADC_RTAVERAGE_LSB 0x04
76 #define TWL4030_MADC_SW1AVERAGE_LSB 0x08
77 #define TWL4030_MADC_SW2AVERAGE_LSB 0x0C
79 #define TWL4030_MADC_CTRL_SW1 0x12
80 #define TWL4030_MADC_CTRL_SW2 0x13
82 #define TWL4030_MADC_RTCH0_LSB 0x17
83 #define TWL4030_MADC_GPCH0_LSB 0x37
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)
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
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
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)
129 #define REG_BCICTL2 0x024
130 #define TWL4030_BCI_ITHSENS 0x007
132 /* Register and bits for GPBR1 register */
133 #define TWL4030_REG_GPBR1 0x0c
134 #define TWL4030_GPBR1_MADC_HFCLK_EN (1 << 7)
136 struct twl4030_madc_user_parms {
137 int channel;
138 int average;
139 int status;
140 u16 result;
143 int twl4030_madc_conversion(struct twl4030_madc_request *conv);
144 int twl4030_get_madc_conversion(int channel_no);
145 #endif