include/linux/soc/tsc2200.h

   1 /*
   2  * TI TSC2101 Structure Definitions
   3  *
   4  * Copyright 2005 Openedhand Ltd.
   5  *
   6  * Author: Richard Purdie <richard@o-hand.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  */
  13
  14 /*
  15  * see http://focus.ti.com/docs/prod/folders/print/tsc2200.html
  16  * it's a texas instruments TSC 2200 A-D converter with interrupts
  17  * and keypad interrupts and everything.
  18  */
  19
  20 #define TSC2200_REG_READ (1<<15) // read register
  21 #define TSC2200_PAGEMASK (0xf<<11) // page of device's memory to be addressed
  22                                   // see table II
  23 #define TSC2200_PAGE(x) ((x<<11) & TSC2200_PAGEMASK)
  24
  25 #define TSC2200_REG_ADDRMASK (0x1f<<5) // memory address mask
  26 #define TSC2200_REG_ADDR(x) ((x<<5) & TSC2200_REG_ADDRMASK)
  27
  28 #define TSC2200_DATAREG_PAGEADDR (0) // datareg page address
  29 #define TSC2200_CTRLREG_PAGEADDR (1) // control reg page address
  30
  31 #define TSC2200_DATAREG(x) (TSC2200_PAGE(TSC2200_DATAREG_PAGEADDR) | TSC2200_REG_ADDR(x))
  32
  33 // these are data registers, in page 0, so they are addressed
  34 // using e.g. TSC2200_REG_ADDR(TSC2200_DATAREG_PAGEADDR)
  35
  36 #define TSC2200_DATAREG_X TSC2200_DATAREG(0)
  37 #define TSC2200_DATAREG_Y TSC2200_DATAREG(1)
  38 #define TSC2200_DATAREG_Z1 TSC2200_DATAREG(2)
  39 #define TSC2200_DATAREG_Z2 TSC2200_DATAREG(3)
  40 #define TSC2200_DATAREG_KPDATA TSC2200_DATAREG(4)
  41 #define TSC2200_DATAREG_BAT1 TSC2200_DATAREG(5)
  42 #define TSC2200_DATAREG_BAT2 TSC2200_DATAREG(6)
  43 #define TSC2200_DATAREG_AUX1 TSC2200_DATAREG(7)
  44 #define TSC2200_DATAREG_AUX2 TSC2200_DATAREG(8)
  45 #define TSC2200_DATAREG_TEMP1 TSC2200_DATAREG(9)
  46 #define TSC2200_DATAREG_TEMP2 TSC2200_DATAREG(0xa)
  47 #define TSC2200_DATAREG_DAC TSC2200_DATAREG(0xb)
  48 #define TSC2200_DATAREG_ZERO TSC2200_DATAREG(0x10)
  49
  50 // these are control registers, in page 1, address using
  51 // using e.g. TSC2200_REG_ADDR(TSC2200_CTRLREG_PAGEADDR)
  52
  53 #define TSC2200_CTRLREG(x) (TSC2200_PAGE(TSC2200_CTRLREG_PAGEADDR) | TSC2200_REG_ADDR(x))
  54
  55 #define TSC2200_CTRLREG_ADC TSC2200_CTRLREG(0)
  56 #define TSC2200_CTRLREG_KEY TSC2200_CTRLREG(1)
  57 #define TSC2200_CTRLREG_DACCTL TSC2200_CTRLREG(2)
  58 #define TSC2200_CTRLREG_REF TSC2200_CTRLREG(3)
  59 #define TSC2200_CTRLREG_RESET TSC2200_CTRLREG(4)
  60 #define TSC2200_CTRLREG_CONFIG TSC2200_CTRLREG(5)
  61 #define TSC2200_CTRLREG_KPMASK TSC2200_CTRLREG(0x10)
  62
  63 // these are relevant for when you access page1's adc register
  64 #define TSC2200_CTRLREG_ADC_PSM_TSC2200 (1<<15) // pen status mode on ctrlreg adc
  65 #define TSC2200_CTRLREG_ADC_STS (1<<14) // stop continuous scanning.
  66 #define TSC2200_CTRLREG_ADC_AD3 (1<<13) //
  67 #define TSC2200_CTRLREG_ADC_AD2 (1<<12) //
  68 #define TSC2200_CTRLREG_ADC_AD1 (1<<11) //
  69 #define TSC2200_CTRLREG_ADC_AD0 (1<<10) //
  70 #define TSC2200_CTRLREG_ADC_RES(x) ((x<<8) & TSC2200_CTRLREG_ADC_RES_MASK )
  71 #define TSC2200_CTRLREG_ADC_RES_MASK (0x3<<8)
  72 #define TSC2200_CTRLREG_ADC_RES_12BITP (0) // 12-bit ADC resolution (default)
  73 #define TSC2200_CTRLREG_ADC_RES_8BIT (1) // 8-bit ADC resolution
  74 #define TSC2200_CTRLREG_ADC_RES_10BIT (2) // 10-bit ADC resolution
  75 #define TSC2200_CTRLREG_ADC_RES_12BIT (3) // 12-bit ADC resolution
  76
  77 #define TSC2200_CTRLREG_ADC_AVG(x) ((x<<6) & TSC2200_CTRLREG_ADC_AVG_MASK )
  78 #define TSC2200_CTRLREG_ADC_AVG_MASK (0x3<<6)
  79 #define TSC2200_CTRLREG_ADC_NOAVG (0) //  a-d does no averaging
  80 #define TSC2200_CTRLREG_ADC_4AVG (1) //  a-d does averaging of 4 samples
  81 #define TSC2200_CTRLREG_ADC_8AVG (2) //  a-d does averaging of 8 samples
  82 #define TSC2200_CTRLREG_ADC_16AVG (3) //  a-d does averaging of 16 samples
  83
  84 #define TSC2200_CTRLREG_ADC_CL(x) ((x<<4) & TSC2200_CTRLREG_ADC_CL_MASK )
  85 #define TSC2200_CTRLREG_ADC_CL_MASK (0x3<<4)
  86 #define TSC2200_CTRLREG_ADC_CL_8MHZ_8BIT (0)
  87 #define TSC2200_CTRLREG_ADC_CL_4MHZ_10BIT (1)
  88 #define TSC2200_CTRLREG_ADC_CL_2MHZ_12BIT (2)
  89 #define TSC2200_CTRLREG_ADC_CL_1MHZ_12BIT (3)
  90 #define TSC2200_CTRLREG_ADC_CL0 (1<< 4) //
  91
  92 #define TSC2200_CTRLREG_ADC_PV(x) ((x<<1) & TSC2200_CTRLREG_ADC_PV_MASK )
  93 #define TSC2200_CTRLREG_ADC_PV_MASK (0x7<<1)
  94 #define TSC2200_CTRLREG_ADC_PV_100mS (0x7) // 100ms panel voltage stabilisation
  95 // ....
  96 #define TSC2200_CTRLREG_ADC_PV_5mS (0x4) // 5ms panel voltage stabilisation
  97 #define TSC2200_CTRLREG_ADC_PV_1mS (0x3) // 1ms panel voltage stabilisation
  98 #define TSC2200_CTRLREG_ADC_PV_500uS (0x2) // 500us panel voltage stabilisation
  99 #define TSC2200_CTRLREG_ADC_PV_100uS (0x1) // 100us panel voltage stabilisation
 100 #define TSC2200_CTRLREG_ADC_PV_0S (0x0) // zero seconds stabilisation
 101
 102 #define TSC2200_CTRLREG_ADC_x (1<< 0) // don't care
 103
 104 #define TSC2200_CTRLREG_CONFIG_DAV (1<<6)
 105
 106 #define TSC2200_CTRLREG_KEY_STC (1<<15) // keypad status
 107 #define TSC2200_CTRLREG_KEY_SCS (1<<14) // keypad scan status
 108
 109 /*
 110  * public interface.
 111  *
 112  * the tsc2200 driver is timer-interrupt-driven and pen-irq driven.
 113  *
 114  * it only needs to know how to read and write to the NSSP, via
 115  * the send_cmd and recv_cmd functions in the nssp_tsc2200_struct.
 116  *
 117  */
 118
 119 //extern struct device_driver tsc2200_device_driver;
 120 //extern struct semaphore tsc2200_sem;
 121 //void tsc2200_reset(void);
 122 //int  tsc2200_dev  (void);
 123 //unsigned short tsc2200_read(unsigned short reg);
 124 //void tsc2200_write(unsigned short reg, unsigned short val);
 125 //int tsc2200_dav(void);
 126
 127
 128
 129 #include <linux/input.h>
 130 /*
 131 struct tsc2200_ts_event {
 132         short p;
 133         short x;
 134         short y;
 135 };
 136 */
 137 //struct tsc2200_misc_data {
 138 //      short bat;
 139 //      short aux1;
 140 //      short aux2;
 141 //      short temp1;
 142 //      short temp2;
 143 //};
 144
 145 /*
 146  * Keyboard definitions
 147  */
 148
 149
 150 struct tsc2200_key {
 151         char *name;
 152         int key_index;
 153         int keycode;
 154 };
 155
 156 struct tsc2200_buttons_platform_info {
 157         struct tsc2200_key *keys;
 158         int num_keys;
 159         int irq;
 160 };
 161
 162 struct tsc2200_buttons_data {
 163         struct tsc2200_buttons_platform_info *platform_info;
 164         struct device *tsc2200_dev;
 165
 166         struct timer_list timer;
 167         struct input_dev *input_dev;
 168         int keydata;
 169
 170 };
 171
 172 /*
 173  * Touch screen definitions
 174  */
 175
 176 struct tsc2200_ts_platform_info {
 177         int irq;
 178 };
 179
 180 struct tsc2200_ts_data {
 181         struct tsc2200_ts_platform_info *platform_info;
 182         struct device *tsc2200_dev;
 183
 184         struct timer_list timer;
 185         struct input_dev *input_dev;
 186 };
 187
 188
 189 struct tsc2200_data {
 190         spinlock_t lock;
 191         struct tsc2200_platform_info *platform;
 192         struct platform_device *buttons_dev;
 193         struct platform_device *ts_dev;
 194 };
 195
 196 struct tsc2200_platform_info {
 197         unsigned short (*send)(unsigned short reg, unsigned short value);
 198         void (*init)(void);
 199 //      int (*suspend) (void);
 200 //      int (*resume) (void);
 201         void (*exit)(void);
 202
 203         struct tsc2200_buttons_platform_info *buttons_info;
 204         struct tsc2200_ts_platform_info *touchscreen_info;
 205
 206 };
 207
 208 extern void tsc2200_write(struct device *dev, unsigned short regnum, unsigned short value);
 209 extern unsigned short tsc2200_read(struct device *dev, unsigned short reg);
 210 extern unsigned short tsc2200_dav(struct device *dev);
 211
 212 extern void tsc2200_stop(struct device *dev);
 213 extern void tsc2200_lock(struct device *dev);
 214 extern void tsc2200_unlock(struct device *dev);
 215
 216
 217