^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * ROHM BU21023/24 Dual touch support resistive touch screen driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2012 ROHM CO.,LTD.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/firmware.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/input/mt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define BU21023_NAME "bu21023_ts"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define BU21023_FIRMWARE_NAME "bu21023.bin"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define MAX_CONTACTS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define AXIS_ADJUST 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define AXIS_OFFSET 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define FIRMWARE_BLOCK_SIZE 32U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define FIRMWARE_RETRY_MAX 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define SAMPLING_DELAY 12 /* msec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define CALIBRATION_RETRY_MAX 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define ROHM_TS_ABS_X_MIN 40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define ROHM_TS_ABS_X_MAX 990
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define ROHM_TS_ABS_Y_MIN 160
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define ROHM_TS_ABS_Y_MAX 920
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define ROHM_TS_DISPLACEMENT_MAX 0 /* zero for infinite */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * BU21023GUL/BU21023MUV/BU21024FV-M registers map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define VADOUT_YP_H 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define VADOUT_YP_L 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define VADOUT_XP_H 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define VADOUT_XP_L 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define VADOUT_YN_H 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define VADOUT_YN_L 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define VADOUT_XN_H 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define VADOUT_XN_L 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define PRM1_X_H 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define PRM1_X_L 0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define PRM1_Y_H 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define PRM1_Y_L 0x0b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define PRM2_X_H 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define PRM2_X_L 0x0d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define PRM2_Y_H 0x0e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define PRM2_Y_L 0x0f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define MLT_PRM_MONI_X 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define MLT_PRM_MONI_Y 0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define DEBUG_MONI_1 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define DEBUG_MONI_2 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define VADOUT_ZX_H 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define VADOUT_ZX_L 0x15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define VADOUT_ZY_H 0x16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define VADOUT_ZY_L 0x17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define Z_PARAM_H 0x18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define Z_PARAM_L 0x19
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * Value for VADOUT_*_L
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define VADOUT_L_MASK 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * Value for PRM*_*_L
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define PRM_L_MASK 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define POS_X1_H 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define POS_X1_L 0x21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define POS_Y1_H 0x22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define POS_Y1_L 0x23
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define POS_X2_H 0x24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define POS_X2_L 0x25
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define POS_Y2_H 0x26
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define POS_Y2_L 0x27
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * Value for POS_*_L
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define POS_L_MASK 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define TOUCH 0x28
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define TOUCH_DETECT 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define TOUCH_GESTURE 0x29
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #define SINGLE_TOUCH 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define DUAL_TOUCH 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #define TOUCH_MASK 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #define CALIBRATION_REQUEST 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #define CALIBRATION_STATUS 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define CALIBRATION_MASK 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #define GESTURE_SPREAD 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define GESTURE_PINCH 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define GESTURE_ROTATE_R 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define GESTURE_ROTATE_L 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define INT_STATUS 0x2a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define INT_MASK 0x3d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define INT_CLEAR 0x3e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * Values for INT_*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define COORD_UPDATE 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define CALIBRATION_DONE 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define SLEEP_IN 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define SLEEP_OUT 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define PROGRAM_LOAD_DONE 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define ERROR 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define INT_ALL 0x9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define ERR_STATUS 0x2b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define ERR_MASK 0x3f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * Values for ERR_*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define ADC_TIMEOUT 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) #define CPU_TIMEOUT 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) #define CALIBRATION_ERR 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #define PROGRAM_LOAD_ERR 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) #define COMMON_SETUP1 0x30
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #define PROGRAM_LOAD_HOST 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #define PROGRAM_LOAD_EEPROM 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define CENSOR_4PORT 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) #define CENSOR_8PORT 0x00 /* Not supported by BU21023 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #define CALIBRATION_TYPE_DEFAULT 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define CALIBRATION_TYPE_SPECIAL 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define INT_ACTIVE_HIGH 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define INT_ACTIVE_LOW 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #define AUTO_CALIBRATION 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #define MANUAL_CALIBRATION 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define COMMON_SETUP1_DEFAULT 0x4e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define COMMON_SETUP2 0x31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define MAF_NONE 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define MAF_1SAMPLE 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define MAF_3SAMPLES 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define MAF_5SAMPLES 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define INV_Y 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define INV_X 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) #define SWAP_XY 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) #define COMMON_SETUP3 0x32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) #define EN_SLEEP 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define EN_MULTI 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #define EN_GESTURE 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #define EN_INTVL 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #define SEL_STEP 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #define SEL_MULTI 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) #define SEL_TBL_DEFAULT 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define INTERVAL_TIME 0x33
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #define INTERVAL_TIME_DEFAULT 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #define STEP_X 0x34
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #define STEP_X_DEFAULT 0x41
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) #define STEP_Y 0x35
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #define STEP_Y_DEFAULT 0x8d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #define OFFSET_X 0x38
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) #define OFFSET_X_DEFAULT 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #define OFFSET_Y 0x39
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #define OFFSET_Y_DEFAULT 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define THRESHOLD_TOUCH 0x3a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) #define THRESHOLD_TOUCH_DEFAULT 0xa0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define THRESHOLD_GESTURE 0x3b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #define THRESHOLD_GESTURE_DEFAULT 0x17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #define SYSTEM 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) #define ANALOG_POWER_ON 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #define ANALOG_POWER_OFF 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #define CPU_POWER_ON 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) #define CPU_POWER_OFF 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #define FORCE_CALIBRATION 0x42
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) #define FORCE_CALIBRATION_ON 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) #define FORCE_CALIBRATION_OFF 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #define CPU_FREQ 0x50 /* 10 / (reg + 1) MHz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) #define CPU_FREQ_10MHZ 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) #define CPU_FREQ_5MHZ 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) #define CPU_FREQ_1MHZ 0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #define EEPROM_ADDR 0x51
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #define CALIBRATION_ADJUST 0x52
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) #define CALIBRATION_ADJUST_DEFAULT 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) #define THRESHOLD_SLEEP_IN 0x53
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) #define EVR_XY 0x56
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #define EVR_XY_DEFAULT 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #define PRM_SWOFF_TIME 0x57
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #define PRM_SWOFF_TIME_DEFAULT 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) #define PROGRAM_VERSION 0x5f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define ADC_CTRL 0x60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #define ADC_DIV_MASK 0x1f /* The minimum value is 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #define ADC_DIV_DEFAULT 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define ADC_WAIT 0x61
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) #define ADC_WAIT_DEFAULT 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) #define SWCONT 0x62
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) #define SWCONT_DEFAULT 0x0f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #define EVR_X 0x63
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) #define EVR_X_DEFAULT 0x86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #define EVR_Y 0x64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) #define EVR_Y_DEFAULT 0x64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) #define TEST1 0x65
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) #define DUALTOUCH_STABILIZE_ON 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define DUALTOUCH_STABILIZE_OFF 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) #define DUALTOUCH_REG_ON 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #define DUALTOUCH_REG_OFF 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) #define CALIBRATION_REG1 0x68
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #define CALIBRATION_REG1_DEFAULT 0xd9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) #define CALIBRATION_REG2 0x69
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) #define CALIBRATION_REG2_DEFAULT 0x36
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) #define CALIBRATION_REG3 0x6a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) #define CALIBRATION_REG3_DEFAULT 0x32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) #define EX_ADDR_H 0x70
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) #define EX_ADDR_L 0x71
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) #define EX_WDAT 0x72
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) #define EX_RDAT 0x73
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) #define EX_CHK_SUM1 0x74
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) #define EX_CHK_SUM2 0x75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) #define EX_CHK_SUM3 0x76
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) struct rohm_ts_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) bool initialized;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) unsigned int contact_count[MAX_CONTACTS + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) int finger_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) u8 setup2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * rohm_i2c_burst_read - execute combined I2C message for ROHM BU21023/24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * @client: Handle to ROHM BU21023/24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * @start: Where to start read address from ROHM BU21023/24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * @buf: Where to store read data from ROHM BU21023/24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * @len: How many bytes to read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * Returns negative errno, else zero on success.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * Note
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * In BU21023/24 burst read, stop condition is needed after "address write".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * Therefore, transmission is performed in 2 steps.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static int rohm_i2c_burst_read(struct i2c_client *client, u8 start, void *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct i2c_adapter *adap = client->adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct i2c_msg msg[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) int i, ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) msg[0].addr = client->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) msg[0].flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) msg[0].len = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) msg[0].buf = &start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) msg[1].addr = client->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) msg[1].flags = I2C_M_RD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) msg[1].len = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) msg[1].buf = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) i2c_lock_bus(adap, I2C_LOCK_SEGMENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) if (__i2c_transfer(adap, &msg[i], 1) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) i2c_unlock_bus(adap, I2C_LOCK_SEGMENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static int rohm_ts_manual_calibration(struct rohm_ts_data *ts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct i2c_client *client = ts->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) u8 buf[33]; /* for PRM1_X_H(0x08)-TOUCH(0x28) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) int retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) bool success = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) bool first_time = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) bool calibration_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) u8 reg1, reg2, reg3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) s32 reg1_orig, reg2_orig, reg3_orig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) s32 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) int calib_x = 0, calib_y = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) int reg_x, reg_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) int err_x, err_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) int error, error2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) reg1_orig = i2c_smbus_read_byte_data(client, CALIBRATION_REG1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (reg1_orig < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) return reg1_orig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) reg2_orig = i2c_smbus_read_byte_data(client, CALIBRATION_REG2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) if (reg2_orig < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) return reg2_orig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) reg3_orig = i2c_smbus_read_byte_data(client, CALIBRATION_REG3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (reg3_orig < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return reg3_orig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) error = i2c_smbus_write_byte_data(client, INT_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) COORD_UPDATE | SLEEP_IN | SLEEP_OUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) PROGRAM_LOAD_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) error = i2c_smbus_write_byte_data(client, TEST1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) DUALTOUCH_STABILIZE_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) for (retry = 0; retry < CALIBRATION_RETRY_MAX; retry++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) /* wait 2 sampling for update */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) mdelay(2 * SAMPLING_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) #define READ_CALIB_BUF(reg) buf[((reg) - PRM1_X_H)]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) error = rohm_i2c_burst_read(client, PRM1_X_H, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) if (READ_CALIB_BUF(TOUCH) & TOUCH_DETECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (first_time) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) /* generate calibration parameter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) calib_x = ((int)READ_CALIB_BUF(PRM1_X_H) << 2 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) READ_CALIB_BUF(PRM1_X_L)) - AXIS_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) calib_y = ((int)READ_CALIB_BUF(PRM1_Y_H) << 2 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) READ_CALIB_BUF(PRM1_Y_L)) - AXIS_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) error = i2c_smbus_write_byte_data(client, TEST1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) DUALTOUCH_STABILIZE_ON | DUALTOUCH_REG_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) first_time = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) /* generate adjustment parameter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) err_x = (int)READ_CALIB_BUF(PRM1_X_H) << 2 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) READ_CALIB_BUF(PRM1_X_L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) err_y = (int)READ_CALIB_BUF(PRM1_Y_H) << 2 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) READ_CALIB_BUF(PRM1_Y_L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) /* X axis ajust */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (err_x <= 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) calib_x -= AXIS_ADJUST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) else if (err_x >= 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) calib_x += AXIS_ADJUST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) /* Y axis ajust */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (err_y <= 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) calib_y -= AXIS_ADJUST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) else if (err_y >= 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) calib_y += AXIS_ADJUST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) /* generate calibration setting value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) reg_x = calib_x + ((calib_x & 0x200) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) reg_y = calib_y + ((calib_y & 0x200) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) /* convert for register format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) reg1 = reg_x >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) reg2 = (reg_y & 0x7) << 4 | (reg_x & 0x7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) reg3 = reg_y >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) error = i2c_smbus_write_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) CALIBRATION_REG1, reg1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) error = i2c_smbus_write_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) CALIBRATION_REG2, reg2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) error = i2c_smbus_write_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) CALIBRATION_REG3, reg3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) * force calibration sequcence
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) error = i2c_smbus_write_byte_data(client, FORCE_CALIBRATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) FORCE_CALIBRATION_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) error = i2c_smbus_write_byte_data(client, FORCE_CALIBRATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) FORCE_CALIBRATION_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) /* clear all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) error = i2c_smbus_write_byte_data(client, INT_CLEAR, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * Wait for the status change of calibration, max 10 sampling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) calibration_done = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) for (i = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) mdelay(SAMPLING_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) val = i2c_smbus_read_byte_data(client, TOUCH_GESTURE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (!(val & CALIBRATION_MASK)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) calibration_done = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) } else if (val < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) error = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (calibration_done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) val = i2c_smbus_read_byte_data(client, INT_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) if (val == CALIBRATION_DONE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) success = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) } else if (val < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) error = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) dev_warn(dev, "calibration timeout\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (!success) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) error = i2c_smbus_write_byte_data(client, CALIBRATION_REG1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) reg1_orig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) error = i2c_smbus_write_byte_data(client, CALIBRATION_REG2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) reg2_orig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) error = i2c_smbus_write_byte_data(client, CALIBRATION_REG3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) reg3_orig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) /* calibration data enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) error = i2c_smbus_write_byte_data(client, TEST1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) DUALTOUCH_STABILIZE_ON |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) DUALTOUCH_REG_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) /* wait 10 sampling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) mdelay(10 * SAMPLING_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) error = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) error2 = i2c_smbus_write_byte_data(client, INT_MASK, INT_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (!error2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) /* Clear all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) error2 = i2c_smbus_write_byte_data(client, INT_CLEAR, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) return error ? error : error2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) static const unsigned int untouch_threshold[3] = { 0, 1, 5 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) static const unsigned int single_touch_threshold[3] = { 0, 0, 4 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) static const unsigned int dual_touch_threshold[3] = { 10, 8, 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) static irqreturn_t rohm_ts_soft_irq(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) struct rohm_ts_data *ts = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) struct i2c_client *client = ts->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) struct input_dev *input_dev = ts->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) u8 buf[10]; /* for POS_X1_H(0x20)-TOUCH_GESTURE(0x29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct input_mt_pos pos[MAX_CONTACTS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) int slots[MAX_CONTACTS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) u8 touch_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) unsigned int threshold;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) int finger_count = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) int prev_finger_count = ts->finger_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) error = i2c_smbus_write_byte_data(client, INT_MASK, INT_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /* Clear all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) error = i2c_smbus_write_byte_data(client, INT_CLEAR, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) #define READ_POS_BUF(reg) buf[((reg) - POS_X1_H)]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) error = rohm_i2c_burst_read(client, POS_X1_H, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) touch_flags = READ_POS_BUF(TOUCH_GESTURE) & TOUCH_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (touch_flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) /* generate coordinates */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) pos[0].x = ((s16)READ_POS_BUF(POS_X1_H) << 2) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) READ_POS_BUF(POS_X1_L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) pos[0].y = ((s16)READ_POS_BUF(POS_Y1_H) << 2) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) READ_POS_BUF(POS_Y1_L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) pos[1].x = ((s16)READ_POS_BUF(POS_X2_H) << 2) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) READ_POS_BUF(POS_X2_L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) pos[1].y = ((s16)READ_POS_BUF(POS_Y2_H) << 2) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) READ_POS_BUF(POS_Y2_L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) switch (touch_flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) threshold = untouch_threshold[prev_finger_count];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) if (++ts->contact_count[0] >= threshold)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) finger_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) case SINGLE_TOUCH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) threshold = single_touch_threshold[prev_finger_count];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (++ts->contact_count[1] >= threshold)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) finger_count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) if (finger_count == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (pos[1].x != 0 && pos[1].y != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) pos[0].x = pos[1].x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) pos[0].y = pos[1].y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) pos[1].x = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) pos[1].y = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) case DUAL_TOUCH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) threshold = dual_touch_threshold[prev_finger_count];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) if (++ts->contact_count[2] >= threshold)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) finger_count = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) dev_dbg(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) "Three or more touches are not supported\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) if (finger_count >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (prev_finger_count != finger_count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) count = ts->contact_count[finger_count];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) memset(ts->contact_count, 0, sizeof(ts->contact_count));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) ts->contact_count[finger_count] = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) input_mt_assign_slots(input_dev, slots, pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) finger_count, ROHM_TS_DISPLACEMENT_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) for (i = 0; i < finger_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) input_mt_slot(input_dev, slots[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) input_mt_report_slot_state(input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) MT_TOOL_FINGER, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) input_report_abs(input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) ABS_MT_POSITION_X, pos[i].x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) input_report_abs(input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) ABS_MT_POSITION_Y, pos[i].y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) input_mt_sync_frame(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) input_mt_report_pointer_emulation(input_dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) input_sync(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) ts->finger_count = finger_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (READ_POS_BUF(TOUCH_GESTURE) & CALIBRATION_REQUEST) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) error = rohm_ts_manual_calibration(ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) dev_warn(dev, "manual calibration failed: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) i2c_smbus_write_byte_data(client, INT_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) CALIBRATION_DONE | SLEEP_OUT | SLEEP_IN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) PROGRAM_LOAD_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) static int rohm_ts_load_firmware(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) const char *firmware_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) const struct firmware *fw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) s32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) unsigned int offset, len, xfer_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) unsigned int retry = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) int error, error2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) error = request_firmware(&fw, firmware_name, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) dev_err(dev, "unable to retrieve firmware %s: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) firmware_name, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) error = i2c_smbus_write_byte_data(client, INT_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) COORD_UPDATE | CALIBRATION_DONE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) SLEEP_IN | SLEEP_OUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) if (retry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) dev_warn(dev, "retrying firmware load\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) /* settings for retry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) error = i2c_smbus_write_byte_data(client, EX_WDAT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) error = i2c_smbus_write_byte_data(client, EX_ADDR_H, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) error = i2c_smbus_write_byte_data(client, EX_ADDR_L, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) error = i2c_smbus_write_byte_data(client, COMMON_SETUP1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) COMMON_SETUP1_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* firmware load to the device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) len = fw->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) while (len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) xfer_len = min(FIRMWARE_BLOCK_SIZE, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) error = i2c_smbus_write_i2c_block_data(client, EX_WDAT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) xfer_len, &fw->data[offset]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) len -= xfer_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) offset += xfer_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) /* check firmware load result */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) status = i2c_smbus_read_byte_data(client, INT_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) error = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) /* clear all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) error = i2c_smbus_write_byte_data(client, INT_CLEAR, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) if (status == PROGRAM_LOAD_DONE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) error = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) } while (++retry <= FIRMWARE_RETRY_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) error2 = i2c_smbus_write_byte_data(client, INT_MASK, INT_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) release_firmware(fw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) return error ? error : error2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) static ssize_t swap_xy_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) struct rohm_ts_data *ts = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) return sprintf(buf, "%d\n", !!(ts->setup2 & SWAP_XY));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) static ssize_t swap_xy_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) struct rohm_ts_data *ts = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) error = kstrtouint(buf, 0, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) error = mutex_lock_interruptible(&ts->input->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) if (val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) ts->setup2 |= SWAP_XY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) ts->setup2 &= ~SWAP_XY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) if (ts->initialized)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) error = i2c_smbus_write_byte_data(ts->client, COMMON_SETUP2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) ts->setup2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) mutex_unlock(&ts->input->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) return error ? error : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) static ssize_t inv_x_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) struct rohm_ts_data *ts = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) return sprintf(buf, "%d\n", !!(ts->setup2 & INV_X));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) static ssize_t inv_x_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) struct rohm_ts_data *ts = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) error = kstrtouint(buf, 0, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) error = mutex_lock_interruptible(&ts->input->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) if (val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) ts->setup2 |= INV_X;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) ts->setup2 &= ~INV_X;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) if (ts->initialized)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) error = i2c_smbus_write_byte_data(ts->client, COMMON_SETUP2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) ts->setup2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) mutex_unlock(&ts->input->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) return error ? error : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) static ssize_t inv_y_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) struct rohm_ts_data *ts = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) return sprintf(buf, "%d\n", !!(ts->setup2 & INV_Y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) static ssize_t inv_y_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) struct rohm_ts_data *ts = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) error = kstrtouint(buf, 0, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) error = mutex_lock_interruptible(&ts->input->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) if (val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) ts->setup2 |= INV_Y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) ts->setup2 &= ~INV_Y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) if (ts->initialized)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) error = i2c_smbus_write_byte_data(client, COMMON_SETUP2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) ts->setup2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) mutex_unlock(&ts->input->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) return error ? error : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) static DEVICE_ATTR_RW(swap_xy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) static DEVICE_ATTR_RW(inv_x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) static DEVICE_ATTR_RW(inv_y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) static struct attribute *rohm_ts_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) &dev_attr_swap_xy.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) &dev_attr_inv_x.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) &dev_attr_inv_y.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) static const struct attribute_group rohm_ts_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) .attrs = rohm_ts_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) static int rohm_ts_device_init(struct i2c_client *client, u8 setup2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) disable_irq(client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) * Wait 200usec for reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) udelay(200);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) /* Release analog reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) error = i2c_smbus_write_byte_data(client, SYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) ANALOG_POWER_ON | CPU_POWER_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) /* Waiting for the analog warm-up, max. 200usec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) udelay(200);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) /* clear all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) error = i2c_smbus_write_byte_data(client, INT_CLEAR, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) error = i2c_smbus_write_byte_data(client, EX_WDAT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) error = i2c_smbus_write_byte_data(client, COMMON_SETUP1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) error = i2c_smbus_write_byte_data(client, COMMON_SETUP2, setup2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) error = i2c_smbus_write_byte_data(client, COMMON_SETUP3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) SEL_TBL_DEFAULT | EN_MULTI);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) error = i2c_smbus_write_byte_data(client, THRESHOLD_GESTURE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) THRESHOLD_GESTURE_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) error = i2c_smbus_write_byte_data(client, INTERVAL_TIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) INTERVAL_TIME_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) error = i2c_smbus_write_byte_data(client, CPU_FREQ, CPU_FREQ_10MHZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) error = i2c_smbus_write_byte_data(client, PRM_SWOFF_TIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) PRM_SWOFF_TIME_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) error = i2c_smbus_write_byte_data(client, ADC_CTRL, ADC_DIV_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) error = i2c_smbus_write_byte_data(client, ADC_WAIT, ADC_WAIT_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) * Panel setup, these values change with the panel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) error = i2c_smbus_write_byte_data(client, STEP_X, STEP_X_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) error = i2c_smbus_write_byte_data(client, STEP_Y, STEP_Y_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) error = i2c_smbus_write_byte_data(client, OFFSET_X, OFFSET_X_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) error = i2c_smbus_write_byte_data(client, OFFSET_Y, OFFSET_Y_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) error = i2c_smbus_write_byte_data(client, THRESHOLD_TOUCH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) THRESHOLD_TOUCH_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) error = i2c_smbus_write_byte_data(client, EVR_XY, EVR_XY_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) error = i2c_smbus_write_byte_data(client, EVR_X, EVR_X_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) error = i2c_smbus_write_byte_data(client, EVR_Y, EVR_Y_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) /* Fixed value settings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) error = i2c_smbus_write_byte_data(client, CALIBRATION_ADJUST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) CALIBRATION_ADJUST_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) error = i2c_smbus_write_byte_data(client, SWCONT, SWCONT_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) error = i2c_smbus_write_byte_data(client, TEST1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) DUALTOUCH_STABILIZE_ON |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) DUALTOUCH_REG_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) error = rohm_ts_load_firmware(client, BU21023_FIRMWARE_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) dev_err(dev, "failed to load firmware: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) * Manual calibration results are not changed in same environment.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) * If the force calibration is performed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) * the controller will not require calibration request interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) * when the typical values are set to the calibration registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) error = i2c_smbus_write_byte_data(client, CALIBRATION_REG1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) CALIBRATION_REG1_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) error = i2c_smbus_write_byte_data(client, CALIBRATION_REG2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) CALIBRATION_REG2_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) error = i2c_smbus_write_byte_data(client, CALIBRATION_REG3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) CALIBRATION_REG3_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) error = i2c_smbus_write_byte_data(client, FORCE_CALIBRATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) FORCE_CALIBRATION_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) error = i2c_smbus_write_byte_data(client, FORCE_CALIBRATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) FORCE_CALIBRATION_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) /* Clear all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) error = i2c_smbus_write_byte_data(client, INT_CLEAR, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) /* Enable coordinates update interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) error = i2c_smbus_write_byte_data(client, INT_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) CALIBRATION_DONE | SLEEP_OUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) SLEEP_IN | PROGRAM_LOAD_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) error = i2c_smbus_write_byte_data(client, ERR_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) PROGRAM_LOAD_ERR | CPU_TIMEOUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) ADC_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) /* controller CPU power on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) error = i2c_smbus_write_byte_data(client, SYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) ANALOG_POWER_ON | CPU_POWER_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) enable_irq(client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) static int rohm_ts_power_off(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) error = i2c_smbus_write_byte_data(client, SYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) ANALOG_POWER_ON | CPU_POWER_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) "failed to power off device CPU: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) error = i2c_smbus_write_byte_data(client, SYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) ANALOG_POWER_OFF | CPU_POWER_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) "failed to power off the device: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) static int rohm_ts_open(struct input_dev *input_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) struct rohm_ts_data *ts = input_get_drvdata(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) struct i2c_client *client = ts->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) if (!ts->initialized) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) error = rohm_ts_device_init(client, ts->setup2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) "device initialization failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) ts->initialized = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) static void rohm_ts_close(struct input_dev *input_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) struct rohm_ts_data *ts = input_get_drvdata(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) rohm_ts_power_off(ts->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) ts->initialized = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) static int rohm_bu21023_i2c_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) struct rohm_ts_data *ts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) if (!client->irq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) dev_err(dev, "IRQ is not assigned\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) if (!client->adapter->algo->master_xfer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) dev_err(dev, "I2C level transfers not supported\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) /* Turn off CPU just in case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) error = rohm_ts_power_off(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) ts = devm_kzalloc(dev, sizeof(struct rohm_ts_data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) if (!ts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) ts->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) ts->setup2 = MAF_1SAMPLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) i2c_set_clientdata(client, ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) input = devm_input_allocate_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) if (!input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) input->name = BU21023_NAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) input->id.bustype = BUS_I2C;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) input->open = rohm_ts_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) input->close = rohm_ts_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) ts->input = input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) input_set_drvdata(input, ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) input_set_abs_params(input, ABS_MT_POSITION_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) ROHM_TS_ABS_X_MIN, ROHM_TS_ABS_X_MAX, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) input_set_abs_params(input, ABS_MT_POSITION_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) ROHM_TS_ABS_Y_MIN, ROHM_TS_ABS_Y_MAX, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) error = input_mt_init_slots(input, MAX_CONTACTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) INPUT_MT_DIRECT | INPUT_MT_TRACK |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) INPUT_MT_DROP_UNUSED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) dev_err(dev, "failed to multi touch slots initialization\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) error = devm_request_threaded_irq(dev, client->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) NULL, rohm_ts_soft_irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) IRQF_ONESHOT, client->name, ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) dev_err(dev, "failed to request IRQ: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) error = input_register_device(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) dev_err(dev, "failed to register input device: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) error = devm_device_add_group(dev, &rohm_ts_attr_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) dev_err(dev, "failed to create sysfs group: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) static const struct i2c_device_id rohm_bu21023_i2c_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) { BU21023_NAME, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) { /* sentinel */ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) MODULE_DEVICE_TABLE(i2c, rohm_bu21023_i2c_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) static struct i2c_driver rohm_bu21023_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) .name = BU21023_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) .probe = rohm_bu21023_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) .id_table = rohm_bu21023_i2c_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) module_i2c_driver(rohm_bu21023_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) MODULE_DESCRIPTION("ROHM BU21023/24 Touchscreen driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) MODULE_AUTHOR("ROHM Co., Ltd.");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags