1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * da7219-aad.h - DA7322 ASoC AAD Driver 3 * da7219-aad.h - DA7322 ASoC AAD Driver
4 * 4 *
5 * Copyright (c) 2015 Dialog Semiconductor Ltd 5 * Copyright (c) 2015 Dialog Semiconductor Ltd.
6 * 6 *
7 * Author: Adam Thomson <Adam.Thomson.Opensour 7 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
8 */ 8 */
9 9
10 #ifndef __DA7219_AAD_H 10 #ifndef __DA7219_AAD_H
11 #define __DA7219_AAD_H 11 #define __DA7219_AAD_H
12 12
13 #include <linux/timer.h> 13 #include <linux/timer.h>
14 #include <linux/mutex.h> <<
15 #include <sound/soc.h> 14 #include <sound/soc.h>
16 #include <sound/jack.h> 15 #include <sound/jack.h>
17 #include <sound/da7219-aad.h> 16 #include <sound/da7219-aad.h>
18 17
19 /* 18 /*
20 * Registers 19 * Registers
21 */ 20 */
22 21
23 #define DA7219_ACCDET_STATUS_A 0xC0 22 #define DA7219_ACCDET_STATUS_A 0xC0
24 #define DA7219_ACCDET_STATUS_B 0xC1 23 #define DA7219_ACCDET_STATUS_B 0xC1
25 #define DA7219_ACCDET_IRQ_EVENT_A 0xC2 24 #define DA7219_ACCDET_IRQ_EVENT_A 0xC2
26 #define DA7219_ACCDET_IRQ_EVENT_B 0xC3 25 #define DA7219_ACCDET_IRQ_EVENT_B 0xC3
27 #define DA7219_ACCDET_IRQ_MASK_A 0xC4 26 #define DA7219_ACCDET_IRQ_MASK_A 0xC4
28 #define DA7219_ACCDET_IRQ_MASK_B 0xC5 27 #define DA7219_ACCDET_IRQ_MASK_B 0xC5
29 #define DA7219_ACCDET_CONFIG_1 0xC6 28 #define DA7219_ACCDET_CONFIG_1 0xC6
30 #define DA7219_ACCDET_CONFIG_2 0xC7 29 #define DA7219_ACCDET_CONFIG_2 0xC7
31 #define DA7219_ACCDET_CONFIG_3 0xC8 30 #define DA7219_ACCDET_CONFIG_3 0xC8
32 #define DA7219_ACCDET_CONFIG_4 0xC9 31 #define DA7219_ACCDET_CONFIG_4 0xC9
33 #define DA7219_ACCDET_CONFIG_5 0xCA 32 #define DA7219_ACCDET_CONFIG_5 0xCA
34 #define DA7219_ACCDET_CONFIG_6 0xCB 33 #define DA7219_ACCDET_CONFIG_6 0xCB
35 #define DA7219_ACCDET_CONFIG_7 0xCC 34 #define DA7219_ACCDET_CONFIG_7 0xCC
36 #define DA7219_ACCDET_CONFIG_8 0xCD 35 #define DA7219_ACCDET_CONFIG_8 0xCD
37 36
38 37
39 /* 38 /*
40 * Bit Fields 39 * Bit Fields
41 */ 40 */
42 41
43 /* DA7219_ACCDET_STATUS_A = 0xC0 */ 42 /* DA7219_ACCDET_STATUS_A = 0xC0 */
44 #define DA7219_JACK_INSERTION_STS_SHIFT 0 43 #define DA7219_JACK_INSERTION_STS_SHIFT 0
45 #define DA7219_JACK_INSERTION_STS_MASK (0x1 < 44 #define DA7219_JACK_INSERTION_STS_MASK (0x1 << 0)
46 #define DA7219_JACK_TYPE_STS_SHIFT 1 45 #define DA7219_JACK_TYPE_STS_SHIFT 1
47 #define DA7219_JACK_TYPE_STS_MASK (0x1 < 46 #define DA7219_JACK_TYPE_STS_MASK (0x1 << 1)
48 #define DA7219_JACK_PIN_ORDER_STS_SHIFT 2 47 #define DA7219_JACK_PIN_ORDER_STS_SHIFT 2
49 #define DA7219_JACK_PIN_ORDER_STS_MASK (0x1 < 48 #define DA7219_JACK_PIN_ORDER_STS_MASK (0x1 << 2)
50 #define DA7219_MICBIAS_UP_STS_SHIFT 3 49 #define DA7219_MICBIAS_UP_STS_SHIFT 3
51 #define DA7219_MICBIAS_UP_STS_MASK (0x1 < 50 #define DA7219_MICBIAS_UP_STS_MASK (0x1 << 3)
52 51
53 /* DA7219_ACCDET_STATUS_B = 0xC1 */ 52 /* DA7219_ACCDET_STATUS_B = 0xC1 */
54 #define DA7219_BUTTON_TYPE_STS_SHIFT 0 53 #define DA7219_BUTTON_TYPE_STS_SHIFT 0
55 #define DA7219_BUTTON_TYPE_STS_MASK (0xFF 54 #define DA7219_BUTTON_TYPE_STS_MASK (0xFF << 0)
56 55
57 /* DA7219_ACCDET_IRQ_EVENT_A = 0xC2 */ 56 /* DA7219_ACCDET_IRQ_EVENT_A = 0xC2 */
58 #define DA7219_E_JACK_INSERTED_SHIFT 57 #define DA7219_E_JACK_INSERTED_SHIFT 0
59 #define DA7219_E_JACK_INSERTED_MASK 58 #define DA7219_E_JACK_INSERTED_MASK (0x1 << 0)
60 #define DA7219_E_JACK_REMOVED_SHIFT 59 #define DA7219_E_JACK_REMOVED_SHIFT 1
61 #define DA7219_E_JACK_REMOVED_MASK 60 #define DA7219_E_JACK_REMOVED_MASK (0x1 << 1)
62 #define DA7219_E_JACK_DETECT_COMPLETE_SHIFT 61 #define DA7219_E_JACK_DETECT_COMPLETE_SHIFT 2
63 #define DA7219_E_JACK_DETECT_COMPLETE_MASK 62 #define DA7219_E_JACK_DETECT_COMPLETE_MASK (0x1 << 2)
64 63
65 /* DA7219_ACCDET_IRQ_EVENT_B = 0xC3 */ 64 /* DA7219_ACCDET_IRQ_EVENT_B = 0xC3 */
66 #define DA7219_E_BUTTON_A_PRESSED_SHIFT 65 #define DA7219_E_BUTTON_A_PRESSED_SHIFT 0
67 #define DA7219_E_BUTTON_A_PRESSED_MASK 66 #define DA7219_E_BUTTON_A_PRESSED_MASK (0x1 << 0)
68 #define DA7219_E_BUTTON_B_PRESSED_SHIFT 67 #define DA7219_E_BUTTON_B_PRESSED_SHIFT 1
69 #define DA7219_E_BUTTON_B_PRESSED_MASK 68 #define DA7219_E_BUTTON_B_PRESSED_MASK (0x1 << 1)
70 #define DA7219_E_BUTTON_C_PRESSED_SHIFT 69 #define DA7219_E_BUTTON_C_PRESSED_SHIFT 2
71 #define DA7219_E_BUTTON_C_PRESSED_MASK 70 #define DA7219_E_BUTTON_C_PRESSED_MASK (0x1 << 2)
72 #define DA7219_E_BUTTON_D_PRESSED_SHIFT 71 #define DA7219_E_BUTTON_D_PRESSED_SHIFT 3
73 #define DA7219_E_BUTTON_D_PRESSED_MASK 72 #define DA7219_E_BUTTON_D_PRESSED_MASK (0x1 << 3)
74 #define DA7219_E_BUTTON_D_RELEASED_SHIFT 73 #define DA7219_E_BUTTON_D_RELEASED_SHIFT 4
75 #define DA7219_E_BUTTON_D_RELEASED_MASK 74 #define DA7219_E_BUTTON_D_RELEASED_MASK (0x1 << 4)
76 #define DA7219_E_BUTTON_C_RELEASED_SHIFT 75 #define DA7219_E_BUTTON_C_RELEASED_SHIFT 5
77 #define DA7219_E_BUTTON_C_RELEASED_MASK 76 #define DA7219_E_BUTTON_C_RELEASED_MASK (0x1 << 5)
78 #define DA7219_E_BUTTON_B_RELEASED_SHIFT 77 #define DA7219_E_BUTTON_B_RELEASED_SHIFT 6
79 #define DA7219_E_BUTTON_B_RELEASED_MASK 78 #define DA7219_E_BUTTON_B_RELEASED_MASK (0x1 << 6)
80 #define DA7219_E_BUTTON_A_RELEASED_SHIFT 79 #define DA7219_E_BUTTON_A_RELEASED_SHIFT 7
81 #define DA7219_E_BUTTON_A_RELEASED_MASK 80 #define DA7219_E_BUTTON_A_RELEASED_MASK (0x1 << 7)
82 81
83 /* DA7219_ACCDET_IRQ_MASK_A = 0xC4 */ 82 /* DA7219_ACCDET_IRQ_MASK_A = 0xC4 */
84 #define DA7219_M_JACK_INSERTED_SHIFT 83 #define DA7219_M_JACK_INSERTED_SHIFT 0
85 #define DA7219_M_JACK_INSERTED_MASK 84 #define DA7219_M_JACK_INSERTED_MASK (0x1 << 0)
86 #define DA7219_M_JACK_REMOVED_SHIFT 85 #define DA7219_M_JACK_REMOVED_SHIFT 1
87 #define DA7219_M_JACK_REMOVED_MASK 86 #define DA7219_M_JACK_REMOVED_MASK (0x1 << 1)
88 #define DA7219_M_JACK_DETECT_COMPLETE_SHIFT 87 #define DA7219_M_JACK_DETECT_COMPLETE_SHIFT 2
89 #define DA7219_M_JACK_DETECT_COMPLETE_MASK 88 #define DA7219_M_JACK_DETECT_COMPLETE_MASK (0x1 << 2)
90 89
91 /* DA7219_ACCDET_IRQ_MASK_B = 0xC5 */ 90 /* DA7219_ACCDET_IRQ_MASK_B = 0xC5 */
92 #define DA7219_M_BUTTON_A_PRESSED_SHIFT 91 #define DA7219_M_BUTTON_A_PRESSED_SHIFT 0
93 #define DA7219_M_BUTTON_A_PRESSED_MASK 92 #define DA7219_M_BUTTON_A_PRESSED_MASK (0x1 << 0)
94 #define DA7219_M_BUTTON_B_PRESSED_SHIFT 93 #define DA7219_M_BUTTON_B_PRESSED_SHIFT 1
95 #define DA7219_M_BUTTON_B_PRESSED_MASK 94 #define DA7219_M_BUTTON_B_PRESSED_MASK (0x1 << 1)
96 #define DA7219_M_BUTTON_C_PRESSED_SHIFT 95 #define DA7219_M_BUTTON_C_PRESSED_SHIFT 2
97 #define DA7219_M_BUTTON_C_PRESSED_MASK 96 #define DA7219_M_BUTTON_C_PRESSED_MASK (0x1 << 2)
98 #define DA7219_M_BUTTON_D_PRESSED_SHIFT 97 #define DA7219_M_BUTTON_D_PRESSED_SHIFT 3
99 #define DA7219_M_BUTTON_D_PRESSED_MASK 98 #define DA7219_M_BUTTON_D_PRESSED_MASK (0x1 << 3)
100 #define DA7219_M_BUTTON_D_RELEASED_SHIFT 99 #define DA7219_M_BUTTON_D_RELEASED_SHIFT 4
101 #define DA7219_M_BUTTON_D_RELEASED_MASK 100 #define DA7219_M_BUTTON_D_RELEASED_MASK (0x1 << 4)
102 #define DA7219_M_BUTTON_C_RELEASED_SHIFT 101 #define DA7219_M_BUTTON_C_RELEASED_SHIFT 5
103 #define DA7219_M_BUTTON_C_RELEASED_MASK 102 #define DA7219_M_BUTTON_C_RELEASED_MASK (0x1 << 5)
104 #define DA7219_M_BUTTON_B_RELEASED_SHIFT 103 #define DA7219_M_BUTTON_B_RELEASED_SHIFT 6
105 #define DA7219_M_BUTTON_B_RELEASED_MASK 104 #define DA7219_M_BUTTON_B_RELEASED_MASK (0x1 << 6)
106 #define DA7219_M_BUTTON_A_RELEASED_SHIFT 105 #define DA7219_M_BUTTON_A_RELEASED_SHIFT 7
107 #define DA7219_M_BUTTON_A_RELEASED_MASK 106 #define DA7219_M_BUTTON_A_RELEASED_MASK (0x1 << 7)
108 107
109 /* DA7219_ACCDET_CONFIG_1 = 0xC6 */ 108 /* DA7219_ACCDET_CONFIG_1 = 0xC6 */
110 #define DA7219_ACCDET_EN_SHIFT 0 109 #define DA7219_ACCDET_EN_SHIFT 0
111 #define DA7219_ACCDET_EN_MASK (0x1 < 110 #define DA7219_ACCDET_EN_MASK (0x1 << 0)
112 #define DA7219_BUTTON_CONFIG_SHIFT 1 111 #define DA7219_BUTTON_CONFIG_SHIFT 1
113 #define DA7219_BUTTON_CONFIG_MASK (0x7 < 112 #define DA7219_BUTTON_CONFIG_MASK (0x7 << 1)
114 #define DA7219_MIC_DET_THRESH_SHIFT 4 113 #define DA7219_MIC_DET_THRESH_SHIFT 4
115 #define DA7219_MIC_DET_THRESH_MASK (0x3 < 114 #define DA7219_MIC_DET_THRESH_MASK (0x3 << 4)
116 #define DA7219_JACK_TYPE_DET_EN_SHIFT 6 115 #define DA7219_JACK_TYPE_DET_EN_SHIFT 6
117 #define DA7219_JACK_TYPE_DET_EN_MASK (0x1 < 116 #define DA7219_JACK_TYPE_DET_EN_MASK (0x1 << 6)
118 #define DA7219_PIN_ORDER_DET_EN_SHIFT 7 117 #define DA7219_PIN_ORDER_DET_EN_SHIFT 7
119 #define DA7219_PIN_ORDER_DET_EN_MASK (0x1 < 118 #define DA7219_PIN_ORDER_DET_EN_MASK (0x1 << 7)
120 119
121 /* DA7219_ACCDET_CONFIG_2 = 0xC7 */ 120 /* DA7219_ACCDET_CONFIG_2 = 0xC7 */
122 #define DA7219_ACCDET_PAUSE_SHIFT 0 121 #define DA7219_ACCDET_PAUSE_SHIFT 0
123 #define DA7219_ACCDET_PAUSE_MASK (0x1 < 122 #define DA7219_ACCDET_PAUSE_MASK (0x1 << 0)
124 #define DA7219_JACKDET_DEBOUNCE_SHIFT 1 123 #define DA7219_JACKDET_DEBOUNCE_SHIFT 1
125 #define DA7219_JACKDET_DEBOUNCE_MASK (0x7 < 124 #define DA7219_JACKDET_DEBOUNCE_MASK (0x7 << 1)
126 #define DA7219_JACK_DETECT_RATE_SHIFT 4 125 #define DA7219_JACK_DETECT_RATE_SHIFT 4
127 #define DA7219_JACK_DETECT_RATE_MASK (0x3 < 126 #define DA7219_JACK_DETECT_RATE_MASK (0x3 << 4)
128 #define DA7219_JACKDET_REM_DEB_SHIFT 6 127 #define DA7219_JACKDET_REM_DEB_SHIFT 6
129 #define DA7219_JACKDET_REM_DEB_MASK (0x3 < 128 #define DA7219_JACKDET_REM_DEB_MASK (0x3 << 6)
130 129
131 /* DA7219_ACCDET_CONFIG_3 = 0xC8 */ 130 /* DA7219_ACCDET_CONFIG_3 = 0xC8 */
132 #define DA7219_A_D_BUTTON_THRESH_SHIFT 0 131 #define DA7219_A_D_BUTTON_THRESH_SHIFT 0
133 #define DA7219_A_D_BUTTON_THRESH_MASK (0xFF 132 #define DA7219_A_D_BUTTON_THRESH_MASK (0xFF << 0)
134 133
135 /* DA7219_ACCDET_CONFIG_4 = 0xC9 */ 134 /* DA7219_ACCDET_CONFIG_4 = 0xC9 */
136 #define DA7219_D_B_BUTTON_THRESH_SHIFT 0 135 #define DA7219_D_B_BUTTON_THRESH_SHIFT 0
137 #define DA7219_D_B_BUTTON_THRESH_MASK (0xFF 136 #define DA7219_D_B_BUTTON_THRESH_MASK (0xFF << 0)
138 137
139 /* DA7219_ACCDET_CONFIG_5 = 0xCA */ 138 /* DA7219_ACCDET_CONFIG_5 = 0xCA */
140 #define DA7219_B_C_BUTTON_THRESH_SHIFT 0 139 #define DA7219_B_C_BUTTON_THRESH_SHIFT 0
141 #define DA7219_B_C_BUTTON_THRESH_MASK (0xFF 140 #define DA7219_B_C_BUTTON_THRESH_MASK (0xFF << 0)
142 141
143 /* DA7219_ACCDET_CONFIG_6 = 0xCB */ 142 /* DA7219_ACCDET_CONFIG_6 = 0xCB */
144 #define DA7219_C_MIC_BUTTON_THRESH_SHIFT 143 #define DA7219_C_MIC_BUTTON_THRESH_SHIFT 0
145 #define DA7219_C_MIC_BUTTON_THRESH_MASK 144 #define DA7219_C_MIC_BUTTON_THRESH_MASK (0xFF << 0)
146 145
147 /* DA7219_ACCDET_CONFIG_7 = 0xCC */ 146 /* DA7219_ACCDET_CONFIG_7 = 0xCC */
148 #define DA7219_BUTTON_AVERAGE_SHIFT 0 147 #define DA7219_BUTTON_AVERAGE_SHIFT 0
149 #define DA7219_BUTTON_AVERAGE_MASK (0x3 < 148 #define DA7219_BUTTON_AVERAGE_MASK (0x3 << 0)
150 #define DA7219_ADC_1_BIT_REPEAT_SHIFT 2 149 #define DA7219_ADC_1_BIT_REPEAT_SHIFT 2
151 #define DA7219_ADC_1_BIT_REPEAT_MASK (0x3 < 150 #define DA7219_ADC_1_BIT_REPEAT_MASK (0x3 << 2)
152 #define DA7219_PIN_ORDER_FORCE_SHIFT 4 151 #define DA7219_PIN_ORDER_FORCE_SHIFT 4
153 #define DA7219_PIN_ORDER_FORCE_MASK (0x1 < 152 #define DA7219_PIN_ORDER_FORCE_MASK (0x1 << 4)
154 #define DA7219_JACK_TYPE_FORCE_SHIFT 5 153 #define DA7219_JACK_TYPE_FORCE_SHIFT 5
155 #define DA7219_JACK_TYPE_FORCE_MASK (0x1 < 154 #define DA7219_JACK_TYPE_FORCE_MASK (0x1 << 5)
156 155
157 /* DA7219_ACCDET_CONFIG_8 = 0xCD */ 156 /* DA7219_ACCDET_CONFIG_8 = 0xCD */
158 #define DA7219_HPTEST_EN_SHIFT 0 157 #define DA7219_HPTEST_EN_SHIFT 0
159 #define DA7219_HPTEST_EN_MASK (0x1 < 158 #define DA7219_HPTEST_EN_MASK (0x1 << 0)
160 #define DA7219_HPTEST_RES_SEL_SHIFT 1 159 #define DA7219_HPTEST_RES_SEL_SHIFT 1
161 #define DA7219_HPTEST_RES_SEL_MASK (0x3 < 160 #define DA7219_HPTEST_RES_SEL_MASK (0x3 << 1)
162 #define DA7219_HPTEST_RES_SEL_1KOHMS (0x0 < 161 #define DA7219_HPTEST_RES_SEL_1KOHMS (0x0 << 1)
163 #define DA7219_HPTEST_COMP_SHIFT 4 162 #define DA7219_HPTEST_COMP_SHIFT 4
164 #define DA7219_HPTEST_COMP_MASK (0x1 < 163 #define DA7219_HPTEST_COMP_MASK (0x1 << 4)
165 164
166 165
167 #define DA7219_AAD_MAX_BUTTONS 4 166 #define DA7219_AAD_MAX_BUTTONS 4
168 #define DA7219_AAD_REPORT_ALL_MASK (SND_J 167 #define DA7219_AAD_REPORT_ALL_MASK (SND_JACK_MECHANICAL | \
169 SND_J 168 SND_JACK_HEADSET | SND_JACK_LINEOUT | \
170 SND_J 169 SND_JACK_BTN_0 | SND_JACK_BTN_1 | \
171 SND_J 170 SND_JACK_BTN_2 | SND_JACK_BTN_3)
172 171
173 #define DA7219_AAD_MICBIAS_CHK_DELAY 10 172 #define DA7219_AAD_MICBIAS_CHK_DELAY 10
174 #define DA7219_AAD_MICBIAS_CHK_RETRIES 5 173 #define DA7219_AAD_MICBIAS_CHK_RETRIES 5
175 174
176 #define DA7219_AAD_HPTEST_RAMP_FREQ 175 #define DA7219_AAD_HPTEST_RAMP_FREQ 0x28
177 #define DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC 176 #define DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC 0x4D
178 #define DA7219_AAD_HPTEST_PERIOD 177 #define DA7219_AAD_HPTEST_PERIOD 65
179 #define DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY 178 #define DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY 20
180 179
181 enum da7219_aad_event_regs { 180 enum da7219_aad_event_regs {
182 DA7219_AAD_IRQ_REG_A = 0, 181 DA7219_AAD_IRQ_REG_A = 0,
183 DA7219_AAD_IRQ_REG_B, 182 DA7219_AAD_IRQ_REG_B,
184 DA7219_AAD_IRQ_REG_MAX, 183 DA7219_AAD_IRQ_REG_MAX,
185 }; 184 };
186 185
187 /* Private data */ 186 /* Private data */
188 struct da7219_aad_priv { 187 struct da7219_aad_priv {
189 struct snd_soc_component *component; 188 struct snd_soc_component *component;
190 int irq; 189 int irq;
191 int gnd_switch_delay; <<
192 190
193 u8 micbias_pulse_lvl; 191 u8 micbias_pulse_lvl;
194 u32 micbias_pulse_time; 192 u32 micbias_pulse_time;
195 193
196 u8 btn_cfg; 194 u8 btn_cfg;
197 195
198 struct work_struct btn_det_work; 196 struct work_struct btn_det_work;
199 struct work_struct hptest_work; 197 struct work_struct hptest_work;
200 struct delayed_work jack_det_work; <<
201 struct workqueue_struct *aad_wq; <<
202 198
203 struct snd_soc_jack *jack; 199 struct snd_soc_jack *jack;
204 bool micbias_resume_enable; 200 bool micbias_resume_enable;
205 bool jack_inserted; 201 bool jack_inserted;
206 }; 202 };
207 203
208 /* AAD control */ 204 /* AAD control */
209 void da7219_aad_jack_det(struct snd_soc_compon 205 void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack);
210 206
211 /* Suspend/Resume */ 207 /* Suspend/Resume */
212 void da7219_aad_suspend(struct snd_soc_compone 208 void da7219_aad_suspend(struct snd_soc_component *component);
213 void da7219_aad_resume(struct snd_soc_componen 209 void da7219_aad_resume(struct snd_soc_component *component);
214 210
215 /* Init/Exit */ 211 /* Init/Exit */
216 int da7219_aad_init(struct snd_soc_component * 212 int da7219_aad_init(struct snd_soc_component *component);
217 void da7219_aad_exit(struct snd_soc_component 213 void da7219_aad_exit(struct snd_soc_component *component);
218 214
219 /* I2C Probe */ 215 /* I2C Probe */
220 int da7219_aad_probe(struct i2c_client *i2c); 216 int da7219_aad_probe(struct i2c_client *i2c);
221 217
222 #endif /* __DA7219_AAD_H */ 218 #endif /* __DA7219_AAD_H */
223 219
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.