Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1 | /* |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 2 | * Atmel maXTouch Touchscreen driver |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2010 Samsung Electronics Co.Ltd |
| 5 | * Author: Joonyoung Shim <jy0922.shim@samsung.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your |
| 10 | * option) any later version. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/firmware.h> |
| 18 | #include <linux/i2c.h> |
Dmitry Torokhov | 964de52 | 2011-02-02 23:21:58 -0800 | [diff] [blame] | 19 | #include <linux/i2c/atmel_mxt_ts.h> |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 20 | #include <linux/input.h> |
| 21 | #include <linux/interrupt.h> |
| 22 | #include <linux/slab.h> |
| 23 | |
| 24 | /* Version */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 25 | #define MXT_VER_20 20 |
| 26 | #define MXT_VER_21 21 |
| 27 | #define MXT_VER_22 22 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 28 | |
| 29 | /* Slave addresses */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 30 | #define MXT_APP_LOW 0x4a |
| 31 | #define MXT_APP_HIGH 0x4b |
| 32 | #define MXT_BOOT_LOW 0x24 |
| 33 | #define MXT_BOOT_HIGH 0x25 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 34 | |
| 35 | /* Firmware */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 36 | #define MXT_FW_NAME "maxtouch.fw" |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 37 | |
| 38 | /* Registers */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 39 | #define MXT_FAMILY_ID 0x00 |
| 40 | #define MXT_VARIANT_ID 0x01 |
| 41 | #define MXT_VERSION 0x02 |
| 42 | #define MXT_BUILD 0x03 |
| 43 | #define MXT_MATRIX_X_SIZE 0x04 |
| 44 | #define MXT_MATRIX_Y_SIZE 0x05 |
| 45 | #define MXT_OBJECT_NUM 0x06 |
| 46 | #define MXT_OBJECT_START 0x07 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 47 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 48 | #define MXT_OBJECT_SIZE 6 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 49 | |
| 50 | /* Object types */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 51 | #define MXT_DEBUG_DIAGNOSTIC 37 |
| 52 | #define MXT_GEN_MESSAGE 5 |
| 53 | #define MXT_GEN_COMMAND 6 |
| 54 | #define MXT_GEN_POWER 7 |
| 55 | #define MXT_GEN_ACQUIRE 8 |
| 56 | #define MXT_TOUCH_MULTI 9 |
| 57 | #define MXT_TOUCH_KEYARRAY 15 |
| 58 | #define MXT_TOUCH_PROXIMITY 23 |
| 59 | #define MXT_PROCI_GRIPFACE 20 |
| 60 | #define MXT_PROCG_NOISE 22 |
| 61 | #define MXT_PROCI_ONETOUCH 24 |
| 62 | #define MXT_PROCI_TWOTOUCH 27 |
| 63 | #define MXT_SPT_COMMSCONFIG 18 /* firmware ver 21 over */ |
| 64 | #define MXT_SPT_GPIOPWM 19 |
| 65 | #define MXT_SPT_SELFTEST 25 |
| 66 | #define MXT_SPT_CTECONFIG 28 |
| 67 | #define MXT_SPT_USERDATA 38 /* firmware ver 21 over */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 68 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 69 | /* MXT_GEN_COMMAND field */ |
| 70 | #define MXT_COMMAND_RESET 0 |
| 71 | #define MXT_COMMAND_BACKUPNV 1 |
| 72 | #define MXT_COMMAND_CALIBRATE 2 |
| 73 | #define MXT_COMMAND_REPORTALL 3 |
| 74 | #define MXT_COMMAND_DIAGNOSTIC 5 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 75 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 76 | /* MXT_GEN_POWER field */ |
| 77 | #define MXT_POWER_IDLEACQINT 0 |
| 78 | #define MXT_POWER_ACTVACQINT 1 |
| 79 | #define MXT_POWER_ACTV2IDLETO 2 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 80 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 81 | /* MXT_GEN_ACQUIRE field */ |
| 82 | #define MXT_ACQUIRE_CHRGTIME 0 |
| 83 | #define MXT_ACQUIRE_TCHDRIFT 2 |
| 84 | #define MXT_ACQUIRE_DRIFTST 3 |
| 85 | #define MXT_ACQUIRE_TCHAUTOCAL 4 |
| 86 | #define MXT_ACQUIRE_SYNC 5 |
| 87 | #define MXT_ACQUIRE_ATCHCALST 6 |
| 88 | #define MXT_ACQUIRE_ATCHCALSTHR 7 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 89 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 90 | /* MXT_TOUCH_MULTI field */ |
| 91 | #define MXT_TOUCH_CTRL 0 |
| 92 | #define MXT_TOUCH_XORIGIN 1 |
| 93 | #define MXT_TOUCH_YORIGIN 2 |
| 94 | #define MXT_TOUCH_XSIZE 3 |
| 95 | #define MXT_TOUCH_YSIZE 4 |
| 96 | #define MXT_TOUCH_BLEN 6 |
| 97 | #define MXT_TOUCH_TCHTHR 7 |
| 98 | #define MXT_TOUCH_TCHDI 8 |
| 99 | #define MXT_TOUCH_ORIENT 9 |
| 100 | #define MXT_TOUCH_MOVHYSTI 11 |
| 101 | #define MXT_TOUCH_MOVHYSTN 12 |
| 102 | #define MXT_TOUCH_NUMTOUCH 14 |
| 103 | #define MXT_TOUCH_MRGHYST 15 |
| 104 | #define MXT_TOUCH_MRGTHR 16 |
| 105 | #define MXT_TOUCH_AMPHYST 17 |
| 106 | #define MXT_TOUCH_XRANGE_LSB 18 |
| 107 | #define MXT_TOUCH_XRANGE_MSB 19 |
| 108 | #define MXT_TOUCH_YRANGE_LSB 20 |
| 109 | #define MXT_TOUCH_YRANGE_MSB 21 |
| 110 | #define MXT_TOUCH_XLOCLIP 22 |
| 111 | #define MXT_TOUCH_XHICLIP 23 |
| 112 | #define MXT_TOUCH_YLOCLIP 24 |
| 113 | #define MXT_TOUCH_YHICLIP 25 |
| 114 | #define MXT_TOUCH_XEDGECTRL 26 |
| 115 | #define MXT_TOUCH_XEDGEDIST 27 |
| 116 | #define MXT_TOUCH_YEDGECTRL 28 |
| 117 | #define MXT_TOUCH_YEDGEDIST 29 |
| 118 | #define MXT_TOUCH_JUMPLIMIT 30 /* firmware ver 22 over */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 119 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 120 | /* MXT_PROCI_GRIPFACE field */ |
| 121 | #define MXT_GRIPFACE_CTRL 0 |
| 122 | #define MXT_GRIPFACE_XLOGRIP 1 |
| 123 | #define MXT_GRIPFACE_XHIGRIP 2 |
| 124 | #define MXT_GRIPFACE_YLOGRIP 3 |
| 125 | #define MXT_GRIPFACE_YHIGRIP 4 |
| 126 | #define MXT_GRIPFACE_MAXTCHS 5 |
| 127 | #define MXT_GRIPFACE_SZTHR1 7 |
| 128 | #define MXT_GRIPFACE_SZTHR2 8 |
| 129 | #define MXT_GRIPFACE_SHPTHR1 9 |
| 130 | #define MXT_GRIPFACE_SHPTHR2 10 |
| 131 | #define MXT_GRIPFACE_SUPEXTTO 11 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 132 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 133 | /* MXT_PROCI_NOISE field */ |
| 134 | #define MXT_NOISE_CTRL 0 |
| 135 | #define MXT_NOISE_OUTFLEN 1 |
| 136 | #define MXT_NOISE_GCAFUL_LSB 3 |
| 137 | #define MXT_NOISE_GCAFUL_MSB 4 |
| 138 | #define MXT_NOISE_GCAFLL_LSB 5 |
| 139 | #define MXT_NOISE_GCAFLL_MSB 6 |
| 140 | #define MXT_NOISE_ACTVGCAFVALID 7 |
| 141 | #define MXT_NOISE_NOISETHR 8 |
| 142 | #define MXT_NOISE_FREQHOPSCALE 10 |
| 143 | #define MXT_NOISE_FREQ0 11 |
| 144 | #define MXT_NOISE_FREQ1 12 |
| 145 | #define MXT_NOISE_FREQ2 13 |
| 146 | #define MXT_NOISE_FREQ3 14 |
| 147 | #define MXT_NOISE_FREQ4 15 |
| 148 | #define MXT_NOISE_IDLEGCAFVALID 16 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 149 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 150 | /* MXT_SPT_COMMSCONFIG */ |
| 151 | #define MXT_COMMS_CTRL 0 |
| 152 | #define MXT_COMMS_CMD 1 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 153 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 154 | /* MXT_SPT_CTECONFIG field */ |
| 155 | #define MXT_CTE_CTRL 0 |
| 156 | #define MXT_CTE_CMD 1 |
| 157 | #define MXT_CTE_MODE 2 |
| 158 | #define MXT_CTE_IDLEGCAFDEPTH 3 |
| 159 | #define MXT_CTE_ACTVGCAFDEPTH 4 |
| 160 | #define MXT_CTE_VOLTAGE 5 /* firmware ver 21 over */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 161 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 162 | #define MXT_VOLTAGE_DEFAULT 2700000 |
| 163 | #define MXT_VOLTAGE_STEP 10000 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 164 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 165 | /* Define for MXT_GEN_COMMAND */ |
| 166 | #define MXT_BOOT_VALUE 0xa5 |
| 167 | #define MXT_BACKUP_VALUE 0x55 |
| 168 | #define MXT_BACKUP_TIME 25 /* msec */ |
| 169 | #define MXT_RESET_TIME 65 /* msec */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 170 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 171 | #define MXT_FWRESET_TIME 175 /* msec */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 172 | |
| 173 | /* Command to unlock bootloader */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 174 | #define MXT_UNLOCK_CMD_MSB 0xaa |
| 175 | #define MXT_UNLOCK_CMD_LSB 0xdc |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 176 | |
| 177 | /* Bootloader mode status */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 178 | #define MXT_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */ |
| 179 | #define MXT_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */ |
| 180 | #define MXT_FRAME_CRC_CHECK 0x02 |
| 181 | #define MXT_FRAME_CRC_FAIL 0x03 |
| 182 | #define MXT_FRAME_CRC_PASS 0x04 |
| 183 | #define MXT_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */ |
| 184 | #define MXT_BOOT_STATUS_MASK 0x3f |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 185 | |
| 186 | /* Touch status */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 187 | #define MXT_SUPPRESS (1 << 1) |
| 188 | #define MXT_AMP (1 << 2) |
| 189 | #define MXT_VECTOR (1 << 3) |
| 190 | #define MXT_MOVE (1 << 4) |
| 191 | #define MXT_RELEASE (1 << 5) |
| 192 | #define MXT_PRESS (1 << 6) |
| 193 | #define MXT_DETECT (1 << 7) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 194 | |
| 195 | /* Touchscreen absolute values */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 196 | #define MXT_MAX_XC 0x3ff |
| 197 | #define MXT_MAX_YC 0x3ff |
| 198 | #define MXT_MAX_AREA 0xff |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 199 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 200 | #define MXT_MAX_FINGER 10 |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 201 | |
| 202 | /* Initial register values recommended from chip vendor */ |
| 203 | static const u8 init_vals_ver_20[] = { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 204 | /* MXT_GEN_COMMAND(6) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 205 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 206 | /* MXT_GEN_POWER(7) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 207 | 0x20, 0xff, 0x32, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 208 | /* MXT_GEN_ACQUIRE(8) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 209 | 0x08, 0x05, 0x05, 0x00, 0x00, 0x00, 0x05, 0x14, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 210 | /* MXT_TOUCH_MULTI(9) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 211 | 0x00, 0x00, 0x00, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x02, 0x00, |
| 212 | 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00, |
| 213 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x64, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 214 | /* MXT_TOUCH_KEYARRAY(15) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 215 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 216 | 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 217 | /* MXT_SPT_GPIOPWM(19) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 218 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 219 | 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 220 | /* MXT_PROCI_GRIPFACE(20) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 221 | 0x00, 0x64, 0x64, 0x64, 0x64, 0x00, 0x00, 0x1e, 0x14, 0x04, |
| 222 | 0x1e, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 223 | /* MXT_PROCG_NOISE(22) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 224 | 0x05, 0x00, 0x00, 0x19, 0x00, 0xe7, 0xff, 0x04, 0x32, 0x00, |
| 225 | 0x01, 0x0a, 0x0f, 0x14, 0x00, 0x00, 0xe8, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 226 | /* MXT_TOUCH_PROXIMITY(23) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 227 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 228 | 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 229 | /* MXT_PROCI_ONETOUCH(24) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 230 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 231 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 232 | /* MXT_SPT_SELFTEST(25) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 233 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 234 | 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 235 | /* MXT_PROCI_TWOTOUCH(27) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 236 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 237 | /* MXT_SPT_CTECONFIG(28) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 238 | 0x00, 0x00, 0x00, 0x04, 0x08, |
| 239 | }; |
| 240 | |
| 241 | static const u8 init_vals_ver_21[] = { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 242 | /* MXT_GEN_COMMAND(6) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 243 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 244 | /* MXT_GEN_POWER(7) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 245 | 0x20, 0xff, 0x32, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 246 | /* MXT_GEN_ACQUIRE(8) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 247 | 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 248 | /* MXT_TOUCH_MULTI(9) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 249 | 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00, |
| 250 | 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00, |
| 251 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 252 | /* MXT_TOUCH_KEYARRAY(15) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 253 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 254 | 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 255 | /* MXT_SPT_GPIOPWM(19) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 256 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 257 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 258 | /* MXT_PROCI_GRIPFACE(20) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 259 | 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04, |
| 260 | 0x0f, 0x0a, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 261 | /* MXT_PROCG_NOISE(22) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 262 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00, |
| 263 | 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 264 | /* MXT_TOUCH_PROXIMITY(23) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 265 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 266 | 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 267 | /* MXT_PROCI_ONETOUCH(24) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 268 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 269 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 270 | /* MXT_SPT_SELFTEST(25) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 271 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 272 | 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 273 | /* MXT_PROCI_TWOTOUCH(27) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 274 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 275 | /* MXT_SPT_CTECONFIG(28) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 276 | 0x00, 0x00, 0x00, 0x08, 0x10, 0x00, |
| 277 | }; |
| 278 | |
| 279 | static const u8 init_vals_ver_22[] = { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 280 | /* MXT_GEN_COMMAND(6) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 281 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 282 | /* MXT_GEN_POWER(7) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 283 | 0x20, 0xff, 0x32, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 284 | /* MXT_GEN_ACQUIRE(8) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 285 | 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 286 | /* MXT_TOUCH_MULTI(9) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 287 | 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00, |
| 288 | 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00, |
| 289 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 290 | 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 291 | /* MXT_TOUCH_KEYARRAY(15) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 292 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 293 | 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 294 | /* MXT_SPT_GPIOPWM(19) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 295 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 296 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 297 | /* MXT_PROCI_GRIPFACE(20) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 298 | 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04, |
| 299 | 0x0f, 0x0a, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 300 | /* MXT_PROCG_NOISE(22) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 301 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00, |
| 302 | 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 303 | /* MXT_TOUCH_PROXIMITY(23) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 304 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 305 | 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 306 | /* MXT_PROCI_ONETOUCH(24) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 307 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 308 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 309 | /* MXT_SPT_SELFTEST(25) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 310 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 311 | 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 312 | /* MXT_PROCI_TWOTOUCH(27) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 313 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 314 | /* MXT_SPT_CTECONFIG(28) */ |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 315 | 0x00, 0x00, 0x00, 0x08, 0x10, 0x00, |
| 316 | }; |
| 317 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 318 | struct mxt_info { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 319 | u8 family_id; |
| 320 | u8 variant_id; |
| 321 | u8 version; |
| 322 | u8 build; |
| 323 | u8 matrix_xsize; |
| 324 | u8 matrix_ysize; |
| 325 | u8 object_num; |
| 326 | }; |
| 327 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 328 | struct mxt_object { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 329 | u8 type; |
| 330 | u16 start_address; |
| 331 | u8 size; |
| 332 | u8 instances; |
| 333 | u8 num_report_ids; |
| 334 | |
| 335 | /* to map object and message */ |
| 336 | u8 max_reportid; |
| 337 | }; |
| 338 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 339 | struct mxt_message { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 340 | u8 reportid; |
| 341 | u8 message[7]; |
| 342 | u8 checksum; |
| 343 | }; |
| 344 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 345 | struct mxt_finger { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 346 | int status; |
| 347 | int x; |
| 348 | int y; |
| 349 | int area; |
| 350 | }; |
| 351 | |
| 352 | /* Each client has this additional data */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 353 | struct mxt_data { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 354 | struct i2c_client *client; |
| 355 | struct input_dev *input_dev; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 356 | const struct mxt_platform_data *pdata; |
| 357 | struct mxt_object *object_table; |
| 358 | struct mxt_info info; |
| 359 | struct mxt_finger finger[MXT_MAX_FINGER]; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 360 | unsigned int irq; |
| 361 | }; |
| 362 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 363 | static bool mxt_object_readable(unsigned int type) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 364 | { |
| 365 | switch (type) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 366 | case MXT_GEN_MESSAGE: |
| 367 | case MXT_GEN_COMMAND: |
| 368 | case MXT_GEN_POWER: |
| 369 | case MXT_GEN_ACQUIRE: |
| 370 | case MXT_TOUCH_MULTI: |
| 371 | case MXT_TOUCH_KEYARRAY: |
| 372 | case MXT_TOUCH_PROXIMITY: |
| 373 | case MXT_PROCI_GRIPFACE: |
| 374 | case MXT_PROCG_NOISE: |
| 375 | case MXT_PROCI_ONETOUCH: |
| 376 | case MXT_PROCI_TWOTOUCH: |
| 377 | case MXT_SPT_COMMSCONFIG: |
| 378 | case MXT_SPT_GPIOPWM: |
| 379 | case MXT_SPT_SELFTEST: |
| 380 | case MXT_SPT_CTECONFIG: |
| 381 | case MXT_SPT_USERDATA: |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 382 | return true; |
| 383 | default: |
| 384 | return false; |
| 385 | } |
| 386 | } |
| 387 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 388 | static bool mxt_object_writable(unsigned int type) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 389 | { |
| 390 | switch (type) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 391 | case MXT_GEN_COMMAND: |
| 392 | case MXT_GEN_POWER: |
| 393 | case MXT_GEN_ACQUIRE: |
| 394 | case MXT_TOUCH_MULTI: |
| 395 | case MXT_TOUCH_KEYARRAY: |
| 396 | case MXT_TOUCH_PROXIMITY: |
| 397 | case MXT_PROCI_GRIPFACE: |
| 398 | case MXT_PROCG_NOISE: |
| 399 | case MXT_PROCI_ONETOUCH: |
| 400 | case MXT_PROCI_TWOTOUCH: |
| 401 | case MXT_SPT_GPIOPWM: |
| 402 | case MXT_SPT_SELFTEST: |
| 403 | case MXT_SPT_CTECONFIG: |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 404 | return true; |
| 405 | default: |
| 406 | return false; |
| 407 | } |
| 408 | } |
| 409 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 410 | static void mxt_dump_message(struct device *dev, |
| 411 | struct mxt_message *message) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 412 | { |
| 413 | dev_dbg(dev, "reportid:\t0x%x\n", message->reportid); |
| 414 | dev_dbg(dev, "message1:\t0x%x\n", message->message[0]); |
| 415 | dev_dbg(dev, "message2:\t0x%x\n", message->message[1]); |
| 416 | dev_dbg(dev, "message3:\t0x%x\n", message->message[2]); |
| 417 | dev_dbg(dev, "message4:\t0x%x\n", message->message[3]); |
| 418 | dev_dbg(dev, "message5:\t0x%x\n", message->message[4]); |
| 419 | dev_dbg(dev, "message6:\t0x%x\n", message->message[5]); |
| 420 | dev_dbg(dev, "message7:\t0x%x\n", message->message[6]); |
| 421 | dev_dbg(dev, "checksum:\t0x%x\n", message->checksum); |
| 422 | } |
| 423 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 424 | static int mxt_check_bootloader(struct i2c_client *client, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 425 | unsigned int state) |
| 426 | { |
| 427 | u8 val; |
| 428 | |
| 429 | recheck: |
| 430 | if (i2c_master_recv(client, &val, 1) != 1) { |
| 431 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); |
| 432 | return -EIO; |
| 433 | } |
| 434 | |
| 435 | switch (state) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 436 | case MXT_WAITING_BOOTLOAD_CMD: |
| 437 | case MXT_WAITING_FRAME_DATA: |
| 438 | val &= ~MXT_BOOT_STATUS_MASK; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 439 | break; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 440 | case MXT_FRAME_CRC_PASS: |
| 441 | if (val == MXT_FRAME_CRC_CHECK) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 442 | goto recheck; |
| 443 | break; |
| 444 | default: |
| 445 | return -EINVAL; |
| 446 | } |
| 447 | |
| 448 | if (val != state) { |
| 449 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); |
| 450 | return -EINVAL; |
| 451 | } |
| 452 | |
| 453 | return 0; |
| 454 | } |
| 455 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 456 | static int mxt_unlock_bootloader(struct i2c_client *client) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 457 | { |
| 458 | u8 buf[2]; |
| 459 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 460 | buf[0] = MXT_UNLOCK_CMD_LSB; |
| 461 | buf[1] = MXT_UNLOCK_CMD_MSB; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 462 | |
| 463 | if (i2c_master_send(client, buf, 2) != 2) { |
| 464 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); |
| 465 | return -EIO; |
| 466 | } |
| 467 | |
| 468 | return 0; |
| 469 | } |
| 470 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 471 | static int mxt_fw_write(struct i2c_client *client, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 472 | const u8 *data, unsigned int frame_size) |
| 473 | { |
| 474 | if (i2c_master_send(client, data, frame_size) != frame_size) { |
| 475 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); |
| 476 | return -EIO; |
| 477 | } |
| 478 | |
| 479 | return 0; |
| 480 | } |
| 481 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 482 | static int __mxt_read_reg(struct i2c_client *client, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 483 | u16 reg, u16 len, void *val) |
| 484 | { |
| 485 | struct i2c_msg xfer[2]; |
| 486 | u8 buf[2]; |
| 487 | |
| 488 | buf[0] = reg & 0xff; |
| 489 | buf[1] = (reg >> 8) & 0xff; |
| 490 | |
| 491 | /* Write register */ |
| 492 | xfer[0].addr = client->addr; |
| 493 | xfer[0].flags = 0; |
| 494 | xfer[0].len = 2; |
| 495 | xfer[0].buf = buf; |
| 496 | |
| 497 | /* Read data */ |
| 498 | xfer[1].addr = client->addr; |
| 499 | xfer[1].flags = I2C_M_RD; |
| 500 | xfer[1].len = len; |
| 501 | xfer[1].buf = val; |
| 502 | |
| 503 | if (i2c_transfer(client->adapter, xfer, 2) != 2) { |
| 504 | dev_err(&client->dev, "%s: i2c transfer failed\n", __func__); |
| 505 | return -EIO; |
| 506 | } |
| 507 | |
| 508 | return 0; |
| 509 | } |
| 510 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 511 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 512 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 513 | return __mxt_read_reg(client, reg, 1, val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 514 | } |
| 515 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 516 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 517 | { |
| 518 | u8 buf[3]; |
| 519 | |
| 520 | buf[0] = reg & 0xff; |
| 521 | buf[1] = (reg >> 8) & 0xff; |
| 522 | buf[2] = val; |
| 523 | |
| 524 | if (i2c_master_send(client, buf, 3) != 3) { |
| 525 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); |
| 526 | return -EIO; |
| 527 | } |
| 528 | |
| 529 | return 0; |
| 530 | } |
| 531 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 532 | static int mxt_read_object_table(struct i2c_client *client, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 533 | u16 reg, u8 *object_buf) |
| 534 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 535 | return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 536 | object_buf); |
| 537 | } |
| 538 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 539 | static struct mxt_object * |
| 540 | mxt_get_object(struct mxt_data *data, u8 type) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 541 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 542 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 543 | int i; |
| 544 | |
| 545 | for (i = 0; i < data->info.object_num; i++) { |
| 546 | object = data->object_table + i; |
| 547 | if (object->type == type) |
| 548 | return object; |
| 549 | } |
| 550 | |
| 551 | dev_err(&data->client->dev, "Invalid object type\n"); |
| 552 | return NULL; |
| 553 | } |
| 554 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 555 | static int mxt_read_message(struct mxt_data *data, |
| 556 | struct mxt_message *message) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 557 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 558 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 559 | u16 reg; |
| 560 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 561 | object = mxt_get_object(data, MXT_GEN_MESSAGE); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 562 | if (!object) |
| 563 | return -EINVAL; |
| 564 | |
| 565 | reg = object->start_address; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 566 | return __mxt_read_reg(data->client, reg, |
| 567 | sizeof(struct mxt_message), message); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 568 | } |
| 569 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 570 | static int mxt_read_object(struct mxt_data *data, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 571 | u8 type, u8 offset, u8 *val) |
| 572 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 573 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 574 | u16 reg; |
| 575 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 576 | object = mxt_get_object(data, type); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 577 | if (!object) |
| 578 | return -EINVAL; |
| 579 | |
| 580 | reg = object->start_address; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 581 | return __mxt_read_reg(data->client, reg + offset, 1, val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 582 | } |
| 583 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 584 | static int mxt_write_object(struct mxt_data *data, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 585 | u8 type, u8 offset, u8 val) |
| 586 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 587 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 588 | u16 reg; |
| 589 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 590 | object = mxt_get_object(data, type); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 591 | if (!object) |
| 592 | return -EINVAL; |
| 593 | |
| 594 | reg = object->start_address; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 595 | return mxt_write_reg(data->client, reg + offset, val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 596 | } |
| 597 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 598 | static void mxt_input_report(struct mxt_data *data, int single_id) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 599 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 600 | struct mxt_finger *finger = data->finger; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 601 | struct input_dev *input_dev = data->input_dev; |
| 602 | int status = finger[single_id].status; |
| 603 | int finger_num = 0; |
| 604 | int id; |
| 605 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 606 | for (id = 0; id < MXT_MAX_FINGER; id++) { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 607 | if (!finger[id].status) |
| 608 | continue; |
| 609 | |
| 610 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 611 | finger[id].status != MXT_RELEASE ? |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 612 | finger[id].area : 0); |
| 613 | input_report_abs(input_dev, ABS_MT_POSITION_X, |
| 614 | finger[id].x); |
| 615 | input_report_abs(input_dev, ABS_MT_POSITION_Y, |
| 616 | finger[id].y); |
| 617 | input_mt_sync(input_dev); |
| 618 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 619 | if (finger[id].status == MXT_RELEASE) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 620 | finger[id].status = 0; |
| 621 | else |
| 622 | finger_num++; |
| 623 | } |
| 624 | |
| 625 | input_report_key(input_dev, BTN_TOUCH, finger_num > 0); |
| 626 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 627 | if (status != MXT_RELEASE) { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 628 | input_report_abs(input_dev, ABS_X, finger[single_id].x); |
| 629 | input_report_abs(input_dev, ABS_Y, finger[single_id].y); |
| 630 | } |
| 631 | |
| 632 | input_sync(input_dev); |
| 633 | } |
| 634 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 635 | static void mxt_input_touchevent(struct mxt_data *data, |
| 636 | struct mxt_message *message, int id) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 637 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 638 | struct mxt_finger *finger = data->finger; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 639 | struct device *dev = &data->client->dev; |
| 640 | u8 status = message->message[0]; |
| 641 | int x; |
| 642 | int y; |
| 643 | int area; |
| 644 | |
| 645 | /* Check the touch is present on the screen */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 646 | if (!(status & MXT_DETECT)) { |
| 647 | if (status & MXT_RELEASE) { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 648 | dev_dbg(dev, "[%d] released\n", id); |
| 649 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 650 | finger[id].status = MXT_RELEASE; |
| 651 | mxt_input_report(data, id); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 652 | } |
| 653 | return; |
| 654 | } |
| 655 | |
| 656 | /* Check only AMP detection */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 657 | if (!(status & (MXT_PRESS | MXT_MOVE))) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 658 | return; |
| 659 | |
| 660 | x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6); |
| 661 | y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2); |
| 662 | area = message->message[4]; |
| 663 | |
| 664 | dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 665 | status & MXT_MOVE ? "moved" : "pressed", |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 666 | x, y, area); |
| 667 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 668 | finger[id].status = status & MXT_MOVE ? |
| 669 | MXT_MOVE : MXT_PRESS; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 670 | finger[id].x = x; |
| 671 | finger[id].y = y; |
| 672 | finger[id].area = area; |
| 673 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 674 | mxt_input_report(data, id); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 675 | } |
| 676 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 677 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 678 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 679 | struct mxt_data *data = dev_id; |
| 680 | struct mxt_message message; |
| 681 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 682 | struct device *dev = &data->client->dev; |
| 683 | int id; |
| 684 | u8 reportid; |
| 685 | u8 max_reportid; |
| 686 | u8 min_reportid; |
| 687 | |
| 688 | do { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 689 | if (mxt_read_message(data, &message)) { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 690 | dev_err(dev, "Failed to read message\n"); |
| 691 | goto end; |
| 692 | } |
| 693 | |
| 694 | reportid = message.reportid; |
| 695 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 696 | /* whether reportid is thing of MXT_TOUCH_MULTI */ |
| 697 | object = mxt_get_object(data, MXT_TOUCH_MULTI); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 698 | if (!object) |
| 699 | goto end; |
| 700 | |
| 701 | max_reportid = object->max_reportid; |
| 702 | min_reportid = max_reportid - object->num_report_ids + 1; |
| 703 | id = reportid - min_reportid; |
| 704 | |
| 705 | if (reportid >= min_reportid && reportid <= max_reportid) |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 706 | mxt_input_touchevent(data, &message, id); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 707 | else |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 708 | mxt_dump_message(dev, &message); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 709 | } while (reportid != 0xff); |
| 710 | |
| 711 | end: |
| 712 | return IRQ_HANDLED; |
| 713 | } |
| 714 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 715 | static int mxt_check_reg_init(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 716 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 717 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 718 | struct device *dev = &data->client->dev; |
| 719 | int index = 0; |
| 720 | int i, j; |
| 721 | u8 version = data->info.version; |
| 722 | u8 *init_vals; |
| 723 | |
| 724 | switch (version) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 725 | case MXT_VER_20: |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 726 | init_vals = (u8 *)init_vals_ver_20; |
| 727 | break; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 728 | case MXT_VER_21: |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 729 | init_vals = (u8 *)init_vals_ver_21; |
| 730 | break; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 731 | case MXT_VER_22: |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 732 | init_vals = (u8 *)init_vals_ver_22; |
| 733 | break; |
| 734 | default: |
| 735 | dev_err(dev, "Firmware version %d doesn't support\n", version); |
| 736 | return -EINVAL; |
| 737 | } |
| 738 | |
| 739 | for (i = 0; i < data->info.object_num; i++) { |
| 740 | object = data->object_table + i; |
| 741 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 742 | if (!mxt_object_writable(object->type)) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 743 | continue; |
| 744 | |
| 745 | for (j = 0; j < object->size + 1; j++) |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 746 | mxt_write_object(data, object->type, j, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 747 | init_vals[index + j]); |
| 748 | |
| 749 | index += object->size + 1; |
| 750 | } |
| 751 | |
| 752 | return 0; |
| 753 | } |
| 754 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 755 | static int mxt_check_matrix_size(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 756 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 757 | const struct mxt_platform_data *pdata = data->pdata; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 758 | struct device *dev = &data->client->dev; |
| 759 | int mode = -1; |
| 760 | int error; |
| 761 | u8 val; |
| 762 | |
| 763 | dev_dbg(dev, "Number of X lines: %d\n", pdata->x_line); |
| 764 | dev_dbg(dev, "Number of Y lines: %d\n", pdata->y_line); |
| 765 | |
| 766 | switch (pdata->x_line) { |
| 767 | case 0 ... 15: |
| 768 | if (pdata->y_line <= 14) |
| 769 | mode = 0; |
| 770 | break; |
| 771 | case 16: |
| 772 | if (pdata->y_line <= 12) |
| 773 | mode = 1; |
| 774 | if (pdata->y_line == 13 || pdata->y_line == 14) |
| 775 | mode = 0; |
| 776 | break; |
| 777 | case 17: |
| 778 | if (pdata->y_line <= 11) |
| 779 | mode = 2; |
| 780 | if (pdata->y_line == 12 || pdata->y_line == 13) |
| 781 | mode = 1; |
| 782 | break; |
| 783 | case 18: |
| 784 | if (pdata->y_line <= 10) |
| 785 | mode = 3; |
| 786 | if (pdata->y_line == 11 || pdata->y_line == 12) |
| 787 | mode = 2; |
| 788 | break; |
| 789 | case 19: |
| 790 | if (pdata->y_line <= 9) |
| 791 | mode = 4; |
| 792 | if (pdata->y_line == 10 || pdata->y_line == 11) |
| 793 | mode = 3; |
| 794 | break; |
| 795 | case 20: |
| 796 | mode = 4; |
| 797 | } |
| 798 | |
| 799 | if (mode < 0) { |
| 800 | dev_err(dev, "Invalid X/Y lines\n"); |
| 801 | return -EINVAL; |
| 802 | } |
| 803 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 804 | error = mxt_read_object(data, MXT_SPT_CTECONFIG, |
| 805 | MXT_CTE_MODE, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 806 | if (error) |
| 807 | return error; |
| 808 | |
| 809 | if (mode == val) |
| 810 | return 0; |
| 811 | |
| 812 | /* Change the CTE configuration */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 813 | mxt_write_object(data, MXT_SPT_CTECONFIG, |
| 814 | MXT_CTE_CTRL, 1); |
| 815 | mxt_write_object(data, MXT_SPT_CTECONFIG, |
| 816 | MXT_CTE_MODE, mode); |
| 817 | mxt_write_object(data, MXT_SPT_CTECONFIG, |
| 818 | MXT_CTE_CTRL, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 819 | |
| 820 | return 0; |
| 821 | } |
| 822 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 823 | static int mxt_make_highchg(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 824 | { |
| 825 | struct device *dev = &data->client->dev; |
| 826 | int count = 10; |
| 827 | int error; |
| 828 | u8 val; |
| 829 | |
| 830 | /* Read dummy message to make high CHG pin */ |
| 831 | do { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 832 | error = mxt_read_object(data, MXT_GEN_MESSAGE, 0, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 833 | if (error) |
| 834 | return error; |
| 835 | } while ((val != 0xff) && --count); |
| 836 | |
| 837 | if (!count) { |
| 838 | dev_err(dev, "CHG pin isn't cleared\n"); |
| 839 | return -EBUSY; |
| 840 | } |
| 841 | |
| 842 | return 0; |
| 843 | } |
| 844 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 845 | static void mxt_handle_pdata(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 846 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 847 | const struct mxt_platform_data *pdata = data->pdata; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 848 | u8 voltage; |
| 849 | |
| 850 | /* Set touchscreen lines */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 851 | mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_XSIZE, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 852 | pdata->x_line); |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 853 | mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_YSIZE, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 854 | pdata->y_line); |
| 855 | |
| 856 | /* Set touchscreen orient */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 857 | mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_ORIENT, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 858 | pdata->orient); |
| 859 | |
| 860 | /* Set touchscreen burst length */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 861 | mxt_write_object(data, MXT_TOUCH_MULTI, |
| 862 | MXT_TOUCH_BLEN, pdata->blen); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 863 | |
| 864 | /* Set touchscreen threshold */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 865 | mxt_write_object(data, MXT_TOUCH_MULTI, |
| 866 | MXT_TOUCH_TCHTHR, pdata->threshold); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 867 | |
| 868 | /* Set touchscreen resolution */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 869 | mxt_write_object(data, MXT_TOUCH_MULTI, |
| 870 | MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff); |
| 871 | mxt_write_object(data, MXT_TOUCH_MULTI, |
| 872 | MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8); |
| 873 | mxt_write_object(data, MXT_TOUCH_MULTI, |
| 874 | MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff); |
| 875 | mxt_write_object(data, MXT_TOUCH_MULTI, |
| 876 | MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 877 | |
| 878 | /* Set touchscreen voltage */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 879 | if (data->info.version >= MXT_VER_21 && pdata->voltage) { |
| 880 | if (pdata->voltage < MXT_VOLTAGE_DEFAULT) { |
| 881 | voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) / |
| 882 | MXT_VOLTAGE_STEP; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 883 | voltage = 0xff - voltage + 1; |
| 884 | } else |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 885 | voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) / |
| 886 | MXT_VOLTAGE_STEP; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 887 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 888 | mxt_write_object(data, MXT_SPT_CTECONFIG, |
| 889 | MXT_CTE_VOLTAGE, voltage); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 890 | } |
| 891 | } |
| 892 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 893 | static int mxt_get_info(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 894 | { |
| 895 | struct i2c_client *client = data->client; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 896 | struct mxt_info *info = &data->info; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 897 | int error; |
| 898 | u8 val; |
| 899 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 900 | error = mxt_read_reg(client, MXT_FAMILY_ID, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 901 | if (error) |
| 902 | return error; |
| 903 | info->family_id = val; |
| 904 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 905 | error = mxt_read_reg(client, MXT_VARIANT_ID, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 906 | if (error) |
| 907 | return error; |
| 908 | info->variant_id = val; |
| 909 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 910 | error = mxt_read_reg(client, MXT_VERSION, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 911 | if (error) |
| 912 | return error; |
| 913 | info->version = val; |
| 914 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 915 | error = mxt_read_reg(client, MXT_BUILD, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 916 | if (error) |
| 917 | return error; |
| 918 | info->build = val; |
| 919 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 920 | error = mxt_read_reg(client, MXT_OBJECT_NUM, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 921 | if (error) |
| 922 | return error; |
| 923 | info->object_num = val; |
| 924 | |
| 925 | return 0; |
| 926 | } |
| 927 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 928 | static int mxt_get_object_table(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 929 | { |
| 930 | int error; |
| 931 | int i; |
| 932 | u16 reg; |
| 933 | u8 reportid = 0; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 934 | u8 buf[MXT_OBJECT_SIZE]; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 935 | |
| 936 | for (i = 0; i < data->info.object_num; i++) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 937 | struct mxt_object *object = data->object_table + i; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 938 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 939 | reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i; |
| 940 | error = mxt_read_object_table(data->client, reg, buf); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 941 | if (error) |
| 942 | return error; |
| 943 | |
| 944 | object->type = buf[0]; |
| 945 | object->start_address = (buf[2] << 8) | buf[1]; |
| 946 | object->size = buf[3]; |
| 947 | object->instances = buf[4]; |
| 948 | object->num_report_ids = buf[5]; |
| 949 | |
| 950 | if (object->num_report_ids) { |
| 951 | reportid += object->num_report_ids * |
| 952 | (object->instances + 1); |
| 953 | object->max_reportid = reportid; |
| 954 | } |
| 955 | } |
| 956 | |
| 957 | return 0; |
| 958 | } |
| 959 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 960 | static int mxt_initialize(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 961 | { |
| 962 | struct i2c_client *client = data->client; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 963 | struct mxt_info *info = &data->info; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 964 | int error; |
| 965 | u8 val; |
| 966 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 967 | error = mxt_get_info(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 968 | if (error) |
| 969 | return error; |
| 970 | |
| 971 | data->object_table = kcalloc(info->object_num, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 972 | sizeof(struct mxt_object), |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 973 | GFP_KERNEL); |
| 974 | if (!data->object_table) { |
| 975 | dev_err(&client->dev, "Failed to allocate memory\n"); |
| 976 | return -ENOMEM; |
| 977 | } |
| 978 | |
| 979 | /* Get object table information */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 980 | error = mxt_get_object_table(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 981 | if (error) |
| 982 | return error; |
| 983 | |
| 984 | /* Check register init values */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 985 | error = mxt_check_reg_init(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 986 | if (error) |
| 987 | return error; |
| 988 | |
| 989 | /* Check X/Y matrix size */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 990 | error = mxt_check_matrix_size(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 991 | if (error) |
| 992 | return error; |
| 993 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 994 | error = mxt_make_highchg(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 995 | if (error) |
| 996 | return error; |
| 997 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 998 | mxt_handle_pdata(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 999 | |
| 1000 | /* Backup to memory */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1001 | mxt_write_object(data, MXT_GEN_COMMAND, |
| 1002 | MXT_COMMAND_BACKUPNV, |
| 1003 | MXT_BACKUP_VALUE); |
| 1004 | msleep(MXT_BACKUP_TIME); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1005 | |
| 1006 | /* Soft reset */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1007 | mxt_write_object(data, MXT_GEN_COMMAND, |
| 1008 | MXT_COMMAND_RESET, 1); |
| 1009 | msleep(MXT_RESET_TIME); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1010 | |
| 1011 | /* Update matrix size at info struct */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1012 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1013 | if (error) |
| 1014 | return error; |
| 1015 | info->matrix_xsize = val; |
| 1016 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1017 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1018 | if (error) |
| 1019 | return error; |
| 1020 | info->matrix_ysize = val; |
| 1021 | |
| 1022 | dev_info(&client->dev, |
| 1023 | "Family ID: %d Variant ID: %d Version: %d Build: %d\n", |
| 1024 | info->family_id, info->variant_id, info->version, |
| 1025 | info->build); |
| 1026 | |
| 1027 | dev_info(&client->dev, |
| 1028 | "Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n", |
| 1029 | info->matrix_xsize, info->matrix_ysize, |
| 1030 | info->object_num); |
| 1031 | |
| 1032 | return 0; |
| 1033 | } |
| 1034 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1035 | static ssize_t mxt_object_show(struct device *dev, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1036 | struct device_attribute *attr, char *buf) |
| 1037 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1038 | struct mxt_data *data = dev_get_drvdata(dev); |
| 1039 | struct mxt_object *object; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1040 | int count = 0; |
| 1041 | int i, j; |
| 1042 | int error; |
| 1043 | u8 val; |
| 1044 | |
| 1045 | for (i = 0; i < data->info.object_num; i++) { |
| 1046 | object = data->object_table + i; |
| 1047 | |
| 1048 | count += sprintf(buf + count, |
| 1049 | "Object Table Element %d(Type %d)\n", |
| 1050 | i + 1, object->type); |
| 1051 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1052 | if (!mxt_object_readable(object->type)) { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1053 | count += sprintf(buf + count, "\n"); |
| 1054 | continue; |
| 1055 | } |
| 1056 | |
| 1057 | for (j = 0; j < object->size + 1; j++) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1058 | error = mxt_read_object(data, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1059 | object->type, j, &val); |
| 1060 | if (error) |
| 1061 | return error; |
| 1062 | |
| 1063 | count += sprintf(buf + count, |
| 1064 | " Byte %d: 0x%x (%d)\n", j, val, val); |
| 1065 | } |
| 1066 | |
| 1067 | count += sprintf(buf + count, "\n"); |
| 1068 | } |
| 1069 | |
| 1070 | return count; |
| 1071 | } |
| 1072 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1073 | static int mxt_load_fw(struct device *dev, const char *fn) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1074 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1075 | struct mxt_data *data = dev_get_drvdata(dev); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1076 | struct i2c_client *client = data->client; |
| 1077 | const struct firmware *fw = NULL; |
| 1078 | unsigned int frame_size; |
| 1079 | unsigned int pos = 0; |
| 1080 | int ret; |
| 1081 | |
| 1082 | ret = request_firmware(&fw, fn, dev); |
| 1083 | if (ret) { |
| 1084 | dev_err(dev, "Unable to open firmware %s\n", fn); |
| 1085 | return ret; |
| 1086 | } |
| 1087 | |
| 1088 | /* Change to the bootloader mode */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1089 | mxt_write_object(data, MXT_GEN_COMMAND, |
| 1090 | MXT_COMMAND_RESET, MXT_BOOT_VALUE); |
| 1091 | msleep(MXT_RESET_TIME); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1092 | |
| 1093 | /* Change to slave address of bootloader */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1094 | if (client->addr == MXT_APP_LOW) |
| 1095 | client->addr = MXT_BOOT_LOW; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1096 | else |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1097 | client->addr = MXT_BOOT_HIGH; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1098 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1099 | ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1100 | if (ret) |
| 1101 | goto out; |
| 1102 | |
| 1103 | /* Unlock bootloader */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1104 | mxt_unlock_bootloader(client); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1105 | |
| 1106 | while (pos < fw->size) { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1107 | ret = mxt_check_bootloader(client, |
| 1108 | MXT_WAITING_FRAME_DATA); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1109 | if (ret) |
| 1110 | goto out; |
| 1111 | |
| 1112 | frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1)); |
| 1113 | |
| 1114 | /* We should add 2 at frame size as the the firmware data is not |
| 1115 | * included the CRC bytes. |
| 1116 | */ |
| 1117 | frame_size += 2; |
| 1118 | |
| 1119 | /* Write one frame to device */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1120 | mxt_fw_write(client, fw->data + pos, frame_size); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1121 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1122 | ret = mxt_check_bootloader(client, |
| 1123 | MXT_FRAME_CRC_PASS); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1124 | if (ret) |
| 1125 | goto out; |
| 1126 | |
| 1127 | pos += frame_size; |
| 1128 | |
| 1129 | dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size); |
| 1130 | } |
| 1131 | |
| 1132 | out: |
| 1133 | release_firmware(fw); |
| 1134 | |
| 1135 | /* Change to slave address of application */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1136 | if (client->addr == MXT_BOOT_LOW) |
| 1137 | client->addr = MXT_APP_LOW; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1138 | else |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1139 | client->addr = MXT_APP_HIGH; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1140 | |
| 1141 | return ret; |
| 1142 | } |
| 1143 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1144 | static ssize_t mxt_update_fw_store(struct device *dev, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1145 | struct device_attribute *attr, |
| 1146 | const char *buf, size_t count) |
| 1147 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1148 | struct mxt_data *data = dev_get_drvdata(dev); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1149 | unsigned int version; |
| 1150 | int error; |
| 1151 | |
| 1152 | if (sscanf(buf, "%u", &version) != 1) { |
| 1153 | dev_err(dev, "Invalid values\n"); |
| 1154 | return -EINVAL; |
| 1155 | } |
| 1156 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1157 | if (data->info.version < MXT_VER_21 || version < MXT_VER_21) { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1158 | dev_err(dev, "FW update supported starting with version 21\n"); |
| 1159 | return -EINVAL; |
| 1160 | } |
| 1161 | |
| 1162 | disable_irq(data->irq); |
| 1163 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1164 | error = mxt_load_fw(dev, MXT_FW_NAME); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1165 | if (error) { |
| 1166 | dev_err(dev, "The firmware update failed(%d)\n", error); |
| 1167 | count = error; |
| 1168 | } else { |
| 1169 | dev_dbg(dev, "The firmware update succeeded\n"); |
| 1170 | |
| 1171 | /* Wait for reset */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1172 | msleep(MXT_FWRESET_TIME); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1173 | |
| 1174 | kfree(data->object_table); |
| 1175 | data->object_table = NULL; |
| 1176 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1177 | mxt_initialize(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1178 | } |
| 1179 | |
| 1180 | enable_irq(data->irq); |
| 1181 | |
| 1182 | return count; |
| 1183 | } |
| 1184 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1185 | static DEVICE_ATTR(object, 0444, mxt_object_show, NULL); |
| 1186 | static DEVICE_ATTR(update_fw, 0664, NULL, mxt_update_fw_store); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1187 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1188 | static struct attribute *mxt_attrs[] = { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1189 | &dev_attr_object.attr, |
| 1190 | &dev_attr_update_fw.attr, |
| 1191 | NULL |
| 1192 | }; |
| 1193 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1194 | static const struct attribute_group mxt_attr_group = { |
| 1195 | .attrs = mxt_attrs, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1196 | }; |
| 1197 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1198 | static void mxt_start(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1199 | { |
| 1200 | /* Touch enable */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1201 | mxt_write_object(data, |
| 1202 | MXT_TOUCH_MULTI, MXT_TOUCH_CTRL, 0x83); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1203 | } |
| 1204 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1205 | static void mxt_stop(struct mxt_data *data) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1206 | { |
| 1207 | /* Touch disable */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1208 | mxt_write_object(data, |
| 1209 | MXT_TOUCH_MULTI, MXT_TOUCH_CTRL, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1210 | } |
| 1211 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1212 | static int mxt_input_open(struct input_dev *dev) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1213 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1214 | struct mxt_data *data = input_get_drvdata(dev); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1215 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1216 | mxt_start(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1217 | |
| 1218 | return 0; |
| 1219 | } |
| 1220 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1221 | static void mxt_input_close(struct input_dev *dev) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1222 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1223 | struct mxt_data *data = input_get_drvdata(dev); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1224 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1225 | mxt_stop(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1226 | } |
| 1227 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1228 | static int __devinit mxt_probe(struct i2c_client *client, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1229 | const struct i2c_device_id *id) |
| 1230 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1231 | struct mxt_data *data; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1232 | struct input_dev *input_dev; |
| 1233 | int error; |
| 1234 | |
| 1235 | if (!client->dev.platform_data) |
| 1236 | return -EINVAL; |
| 1237 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1238 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1239 | input_dev = input_allocate_device(); |
| 1240 | if (!data || !input_dev) { |
| 1241 | dev_err(&client->dev, "Failed to allocate memory\n"); |
| 1242 | error = -ENOMEM; |
| 1243 | goto err_free_mem; |
| 1244 | } |
| 1245 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1246 | input_dev->name = "Atmel maXTouch Touchscreen"; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1247 | input_dev->id.bustype = BUS_I2C; |
| 1248 | input_dev->dev.parent = &client->dev; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1249 | input_dev->open = mxt_input_open; |
| 1250 | input_dev->close = mxt_input_close; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1251 | |
| 1252 | __set_bit(EV_ABS, input_dev->evbit); |
| 1253 | __set_bit(EV_KEY, input_dev->evbit); |
| 1254 | __set_bit(BTN_TOUCH, input_dev->keybit); |
| 1255 | |
| 1256 | /* For single touch */ |
| 1257 | input_set_abs_params(input_dev, ABS_X, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1258 | 0, MXT_MAX_XC, 0, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1259 | input_set_abs_params(input_dev, ABS_Y, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1260 | 0, MXT_MAX_YC, 0, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1261 | |
| 1262 | /* For multi touch */ |
| 1263 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1264 | 0, MXT_MAX_AREA, 0, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1265 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1266 | 0, MXT_MAX_XC, 0, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1267 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1268 | 0, MXT_MAX_YC, 0, 0); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1269 | |
| 1270 | input_set_drvdata(input_dev, data); |
| 1271 | |
| 1272 | data->client = client; |
| 1273 | data->input_dev = input_dev; |
| 1274 | data->pdata = client->dev.platform_data; |
| 1275 | data->irq = client->irq; |
| 1276 | |
| 1277 | i2c_set_clientdata(client, data); |
| 1278 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1279 | error = mxt_initialize(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1280 | if (error) |
| 1281 | goto err_free_object; |
| 1282 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1283 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1284 | IRQF_TRIGGER_FALLING, client->dev.driver->name, data); |
| 1285 | if (error) { |
| 1286 | dev_err(&client->dev, "Failed to register interrupt\n"); |
| 1287 | goto err_free_object; |
| 1288 | } |
| 1289 | |
| 1290 | error = input_register_device(input_dev); |
| 1291 | if (error) |
| 1292 | goto err_free_irq; |
| 1293 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1294 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1295 | if (error) |
| 1296 | goto err_unregister_device; |
| 1297 | |
| 1298 | return 0; |
| 1299 | |
| 1300 | err_unregister_device: |
| 1301 | input_unregister_device(input_dev); |
| 1302 | input_dev = NULL; |
| 1303 | err_free_irq: |
| 1304 | free_irq(client->irq, data); |
| 1305 | err_free_object: |
| 1306 | kfree(data->object_table); |
| 1307 | err_free_mem: |
| 1308 | input_free_device(input_dev); |
| 1309 | kfree(data); |
| 1310 | return error; |
| 1311 | } |
| 1312 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1313 | static int __devexit mxt_remove(struct i2c_client *client) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1314 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1315 | struct mxt_data *data = i2c_get_clientdata(client); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1316 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1317 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1318 | free_irq(data->irq, data); |
| 1319 | input_unregister_device(data->input_dev); |
| 1320 | kfree(data->object_table); |
| 1321 | kfree(data); |
| 1322 | |
| 1323 | return 0; |
| 1324 | } |
| 1325 | |
| 1326 | #ifdef CONFIG_PM |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1327 | static int mxt_suspend(struct device *dev) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1328 | { |
Dmitry Torokhov | 8b5fce0 | 2010-11-18 00:14:03 -0800 | [diff] [blame] | 1329 | struct i2c_client *client = to_i2c_client(dev); |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1330 | struct mxt_data *data = i2c_get_clientdata(client); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1331 | struct input_dev *input_dev = data->input_dev; |
| 1332 | |
| 1333 | mutex_lock(&input_dev->mutex); |
| 1334 | |
| 1335 | if (input_dev->users) |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1336 | mxt_stop(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1337 | |
| 1338 | mutex_unlock(&input_dev->mutex); |
| 1339 | |
| 1340 | return 0; |
| 1341 | } |
| 1342 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1343 | static int mxt_resume(struct device *dev) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1344 | { |
Dmitry Torokhov | 8b5fce0 | 2010-11-18 00:14:03 -0800 | [diff] [blame] | 1345 | struct i2c_client *client = to_i2c_client(dev); |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1346 | struct mxt_data *data = i2c_get_clientdata(client); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1347 | struct input_dev *input_dev = data->input_dev; |
| 1348 | |
| 1349 | /* Soft reset */ |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1350 | mxt_write_object(data, MXT_GEN_COMMAND, |
| 1351 | MXT_COMMAND_RESET, 1); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1352 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1353 | msleep(MXT_RESET_TIME); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1354 | |
| 1355 | mutex_lock(&input_dev->mutex); |
| 1356 | |
| 1357 | if (input_dev->users) |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1358 | mxt_start(data); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1359 | |
| 1360 | mutex_unlock(&input_dev->mutex); |
| 1361 | |
| 1362 | return 0; |
| 1363 | } |
Dmitry Torokhov | 8b5fce0 | 2010-11-18 00:14:03 -0800 | [diff] [blame] | 1364 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1365 | static const struct dev_pm_ops mxt_pm_ops = { |
| 1366 | .suspend = mxt_suspend, |
| 1367 | .resume = mxt_resume, |
Dmitry Torokhov | 8b5fce0 | 2010-11-18 00:14:03 -0800 | [diff] [blame] | 1368 | }; |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1369 | #endif |
| 1370 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1371 | static const struct i2c_device_id mxt_id[] = { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1372 | { "qt602240_ts", 0 }, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1373 | { "atmel_mxt_ts", 0 }, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1374 | { } |
| 1375 | }; |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1376 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1377 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1378 | static struct i2c_driver mxt_driver = { |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1379 | .driver = { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1380 | .name = "atmel_mxt_ts", |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1381 | .owner = THIS_MODULE, |
Dmitry Torokhov | 8b5fce0 | 2010-11-18 00:14:03 -0800 | [diff] [blame] | 1382 | #ifdef CONFIG_PM |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1383 | .pm = &mxt_pm_ops, |
Dmitry Torokhov | 8b5fce0 | 2010-11-18 00:14:03 -0800 | [diff] [blame] | 1384 | #endif |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1385 | }, |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1386 | .probe = mxt_probe, |
| 1387 | .remove = __devexit_p(mxt_remove), |
| 1388 | .id_table = mxt_id, |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1389 | }; |
| 1390 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1391 | static int __init mxt_init(void) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1392 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1393 | return i2c_add_driver(&mxt_driver); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1394 | } |
| 1395 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1396 | static void __exit mxt_exit(void) |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1397 | { |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1398 | i2c_del_driver(&mxt_driver); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1399 | } |
| 1400 | |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1401 | module_init(mxt_init); |
| 1402 | module_exit(mxt_exit); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1403 | |
| 1404 | /* Module information */ |
| 1405 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); |
Iiro Valkonen | 7686b10 | 2011-02-02 23:21:58 -0800 | [diff] [blame^] | 1406 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
Joonyoung Shim | 4cf51c3 | 2010-07-14 21:55:30 -0700 | [diff] [blame] | 1407 | MODULE_LICENSE("GPL"); |