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1213a366 KK |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // extcon-max77693.c - MAX77693 extcon driver to support MAX77693 MUIC | |
4 | // | |
5 | // Copyright (C) 2012 Samsung Electrnoics | |
6 | // Chanwoo Choi <cw00.choi@samsung.com> | |
db1b9037 CC |
7 | |
8 | #include <linux/kernel.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/i2c.h> | |
11 | #include <linux/slab.h> | |
39bf369e | 12 | #include <linux/input.h> |
db1b9037 CC |
13 | #include <linux/interrupt.h> |
14 | #include <linux/err.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/mfd/max77693.h> | |
61b305cd | 17 | #include <linux/mfd/max77693-common.h> |
db1b9037 | 18 | #include <linux/mfd/max77693-private.h> |
176aa360 | 19 | #include <linux/extcon-provider.h> |
db1b9037 CC |
20 | #include <linux/regmap.h> |
21 | #include <linux/irqdomain.h> | |
22 | ||
23 | #define DEV_NAME "max77693-muic" | |
297620fd | 24 | #define DELAY_MS_DEFAULT 20000 /* unit: millisecond */ |
db1b9037 | 25 | |
0ec83bd2 CC |
26 | /* |
27 | * Default value of MAX77693 register to bring up MUIC device. | |
28 | * If user don't set some initial value for MUIC device through platform data, | |
29 | * extcon-max77693 driver use 'default_init_data' to bring up base operation | |
30 | * of MAX77693 MUIC device. | |
31 | */ | |
813b4516 | 32 | static struct max77693_reg_data default_init_data[] = { |
0ec83bd2 CC |
33 | { |
34 | /* STATUS2 - [3]ChgDetRun */ | |
35 | .addr = MAX77693_MUIC_REG_STATUS2, | |
cceb433a | 36 | .data = MAX77693_STATUS2_CHGDETRUN_MASK, |
0ec83bd2 CC |
37 | }, { |
38 | /* INTMASK1 - Unmask [3]ADC1KM,[0]ADCM */ | |
39 | .addr = MAX77693_MUIC_REG_INTMASK1, | |
40 | .data = INTMASK1_ADC1K_MASK | |
41 | | INTMASK1_ADC_MASK, | |
42 | }, { | |
43 | /* INTMASK2 - Unmask [0]ChgTypM */ | |
44 | .addr = MAX77693_MUIC_REG_INTMASK2, | |
45 | .data = INTMASK2_CHGTYP_MASK, | |
46 | }, { | |
47 | /* INTMASK3 - Mask all of interrupts */ | |
48 | .addr = MAX77693_MUIC_REG_INTMASK3, | |
49 | .data = 0x0, | |
50 | }, { | |
51 | /* CDETCTRL2 */ | |
52 | .addr = MAX77693_MUIC_REG_CDETCTRL2, | |
53 | .data = CDETCTRL2_VIDRMEN_MASK | |
54 | | CDETCTRL2_DXOVPEN_MASK, | |
55 | }, | |
56 | }; | |
57 | ||
db1b9037 CC |
58 | enum max77693_muic_adc_debounce_time { |
59 | ADC_DEBOUNCE_TIME_5MS = 0, | |
60 | ADC_DEBOUNCE_TIME_10MS, | |
61 | ADC_DEBOUNCE_TIME_25MS, | |
62 | ADC_DEBOUNCE_TIME_38_62MS, | |
63 | }; | |
64 | ||
65 | struct max77693_muic_info { | |
66 | struct device *dev; | |
67 | struct max77693_dev *max77693; | |
68 | struct extcon_dev *edev; | |
154f757f CC |
69 | int prev_cable_type; |
70 | int prev_cable_type_gnd; | |
db1b9037 | 71 | int prev_chg_type; |
39bf369e | 72 | int prev_button_type; |
db1b9037 CC |
73 | u8 status[2]; |
74 | ||
75 | int irq; | |
76 | struct work_struct irq_work; | |
77 | struct mutex mutex; | |
39bf369e | 78 | |
297620fd CC |
79 | /* |
80 | * Use delayed workqueue to detect cable state and then | |
81 | * notify cable state to notifiee/platform through uevent. | |
82 | * After completing the booting of platform, the extcon provider | |
83 | * driver should notify cable state to upper layer. | |
84 | */ | |
85 | struct delayed_work wq_detcable; | |
86 | ||
39bf369e CC |
87 | /* Button of dock device */ |
88 | struct input_dev *dock; | |
2b75799f CC |
89 | |
90 | /* | |
91 | * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB | |
92 | * h/w path of COMP2/COMN1 on CONTROL1 register. | |
93 | */ | |
94 | int path_usb; | |
95 | int path_uart; | |
db1b9037 CC |
96 | }; |
97 | ||
154f757f CC |
98 | enum max77693_muic_cable_group { |
99 | MAX77693_CABLE_GROUP_ADC = 0, | |
100 | MAX77693_CABLE_GROUP_ADC_GND, | |
101 | MAX77693_CABLE_GROUP_CHG, | |
102 | MAX77693_CABLE_GROUP_VBVOLT, | |
103 | }; | |
104 | ||
db1b9037 CC |
105 | enum max77693_muic_charger_type { |
106 | MAX77693_CHARGER_TYPE_NONE = 0, | |
107 | MAX77693_CHARGER_TYPE_USB, | |
108 | MAX77693_CHARGER_TYPE_DOWNSTREAM_PORT, | |
109 | MAX77693_CHARGER_TYPE_DEDICATED_CHG, | |
110 | MAX77693_CHARGER_TYPE_APPLE_500MA, | |
111 | MAX77693_CHARGER_TYPE_APPLE_1A_2A, | |
112 | MAX77693_CHARGER_TYPE_DEAD_BATTERY = 7, | |
113 | }; | |
114 | ||
115 | /** | |
116 | * struct max77693_muic_irq | |
117 | * @irq: the index of irq list of MUIC device. | |
118 | * @name: the name of irq. | |
119 | * @virq: the virtual irq to use irq domain | |
120 | */ | |
121 | struct max77693_muic_irq { | |
122 | unsigned int irq; | |
123 | const char *name; | |
124 | unsigned int virq; | |
125 | }; | |
126 | ||
127 | static struct max77693_muic_irq muic_irqs[] = { | |
128 | { MAX77693_MUIC_IRQ_INT1_ADC, "muic-ADC" }, | |
129 | { MAX77693_MUIC_IRQ_INT1_ADC_LOW, "muic-ADCLOW" }, | |
130 | { MAX77693_MUIC_IRQ_INT1_ADC_ERR, "muic-ADCError" }, | |
131 | { MAX77693_MUIC_IRQ_INT1_ADC1K, "muic-ADC1K" }, | |
132 | { MAX77693_MUIC_IRQ_INT2_CHGTYP, "muic-CHGTYP" }, | |
133 | { MAX77693_MUIC_IRQ_INT2_CHGDETREUN, "muic-CHGDETREUN" }, | |
134 | { MAX77693_MUIC_IRQ_INT2_DCDTMR, "muic-DCDTMR" }, | |
135 | { MAX77693_MUIC_IRQ_INT2_DXOVP, "muic-DXOVP" }, | |
136 | { MAX77693_MUIC_IRQ_INT2_VBVOLT, "muic-VBVOLT" }, | |
137 | { MAX77693_MUIC_IRQ_INT2_VIDRM, "muic-VIDRM" }, | |
138 | { MAX77693_MUIC_IRQ_INT3_EOC, "muic-EOC" }, | |
139 | { MAX77693_MUIC_IRQ_INT3_CGMBC, "muic-CGMBC" }, | |
140 | { MAX77693_MUIC_IRQ_INT3_OVP, "muic-OVP" }, | |
141 | { MAX77693_MUIC_IRQ_INT3_MBCCHG_ERR, "muic-MBCCHG_ERR" }, | |
142 | { MAX77693_MUIC_IRQ_INT3_CHG_ENABLED, "muic-CHG_ENABLED" }, | |
143 | { MAX77693_MUIC_IRQ_INT3_BAT_DET, "muic-BAT_DET" }, | |
144 | }; | |
145 | ||
146 | /* Define supported accessory type */ | |
147 | enum max77693_muic_acc_type { | |
148 | MAX77693_MUIC_ADC_GROUND = 0x0, | |
149 | MAX77693_MUIC_ADC_SEND_END_BUTTON, | |
150 | MAX77693_MUIC_ADC_REMOTE_S1_BUTTON, | |
151 | MAX77693_MUIC_ADC_REMOTE_S2_BUTTON, | |
152 | MAX77693_MUIC_ADC_REMOTE_S3_BUTTON, | |
153 | MAX77693_MUIC_ADC_REMOTE_S4_BUTTON, | |
154 | MAX77693_MUIC_ADC_REMOTE_S5_BUTTON, | |
155 | MAX77693_MUIC_ADC_REMOTE_S6_BUTTON, | |
156 | MAX77693_MUIC_ADC_REMOTE_S7_BUTTON, | |
157 | MAX77693_MUIC_ADC_REMOTE_S8_BUTTON, | |
158 | MAX77693_MUIC_ADC_REMOTE_S9_BUTTON, | |
159 | MAX77693_MUIC_ADC_REMOTE_S10_BUTTON, | |
160 | MAX77693_MUIC_ADC_REMOTE_S11_BUTTON, | |
161 | MAX77693_MUIC_ADC_REMOTE_S12_BUTTON, | |
162 | MAX77693_MUIC_ADC_RESERVED_ACC_1, | |
163 | MAX77693_MUIC_ADC_RESERVED_ACC_2, | |
164 | MAX77693_MUIC_ADC_RESERVED_ACC_3, | |
165 | MAX77693_MUIC_ADC_RESERVED_ACC_4, | |
166 | MAX77693_MUIC_ADC_RESERVED_ACC_5, | |
167 | MAX77693_MUIC_ADC_CEA936_AUDIO, | |
168 | MAX77693_MUIC_ADC_PHONE_POWERED_DEV, | |
169 | MAX77693_MUIC_ADC_TTY_CONVERTER, | |
170 | MAX77693_MUIC_ADC_UART_CABLE, | |
171 | MAX77693_MUIC_ADC_CEA936A_TYPE1_CHG, | |
172 | MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF, | |
173 | MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON, | |
174 | MAX77693_MUIC_ADC_AV_CABLE_NOLOAD, | |
175 | MAX77693_MUIC_ADC_CEA936A_TYPE2_CHG, | |
176 | MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF, | |
177 | MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON, | |
178 | MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE, | |
179 | MAX77693_MUIC_ADC_OPEN, | |
180 | ||
af57fa4d SR |
181 | /* |
182 | * The below accessories have same ADC value so ADCLow and | |
183 | * ADC1K bit is used to separate specific accessory. | |
184 | */ | |
c2275d2f | 185 | /* ADC|VBVolot|ADCLow|ADC1K| */ |
4c883abe JK |
186 | MAX77693_MUIC_GND_USB_HOST = 0x100, /* 0x0| 0| 0| 0| */ |
187 | MAX77693_MUIC_GND_USB_HOST_VB = 0x104, /* 0x0| 1| 0| 0| */ | |
c2275d2f CC |
188 | MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* 0x0| 0| 1| 0| */ |
189 | MAX77693_MUIC_GND_MHL = 0x103, /* 0x0| 0| 1| 1| */ | |
190 | MAX77693_MUIC_GND_MHL_VB = 0x107, /* 0x0| 1| 1| 1| */ | |
db1b9037 CC |
191 | }; |
192 | ||
c2275d2f CC |
193 | /* |
194 | * MAX77693 MUIC device support below list of accessories(external connector) | |
195 | */ | |
73b6ecdb | 196 | static const unsigned int max77693_extcon_cable[] = { |
2a9de9c0 CC |
197 | EXTCON_USB, |
198 | EXTCON_USB_HOST, | |
8b45b6a0 | 199 | EXTCON_CHG_USB_SDP, |
11eecf91 CC |
200 | EXTCON_CHG_USB_DCP, |
201 | EXTCON_CHG_USB_FAST, | |
202 | EXTCON_CHG_USB_SLOW, | |
203 | EXTCON_CHG_USB_CDP, | |
204 | EXTCON_DISP_MHL, | |
2a9de9c0 CC |
205 | EXTCON_JIG, |
206 | EXTCON_DOCK, | |
207 | EXTCON_NONE, | |
db1b9037 CC |
208 | }; |
209 | ||
154f757f CC |
210 | /* |
211 | * max77693_muic_set_debounce_time - Set the debounce time of ADC | |
212 | * @info: the instance including private data of max77693 MUIC | |
213 | * @time: the debounce time of ADC | |
214 | */ | |
db1b9037 CC |
215 | static int max77693_muic_set_debounce_time(struct max77693_muic_info *info, |
216 | enum max77693_muic_adc_debounce_time time) | |
217 | { | |
bf2627d6 | 218 | int ret; |
db1b9037 CC |
219 | |
220 | switch (time) { | |
221 | case ADC_DEBOUNCE_TIME_5MS: | |
222 | case ADC_DEBOUNCE_TIME_10MS: | |
223 | case ADC_DEBOUNCE_TIME_25MS: | |
224 | case ADC_DEBOUNCE_TIME_38_62MS: | |
dc6048d7 JL |
225 | /* |
226 | * Don't touch BTLDset, JIGset when you want to change adc | |
227 | * debounce time. If it writes other than 0 to BTLDset, JIGset | |
228 | * muic device will be reset and loose current state. | |
229 | */ | |
230 | ret = regmap_write(info->max77693->regmap_muic, | |
231 | MAX77693_MUIC_REG_CTRL3, | |
cceb433a | 232 | time << MAX77693_CONTROL3_ADCDBSET_SHIFT); |
19d3243e | 233 | if (ret) { |
db1b9037 | 234 | dev_err(info->dev, "failed to set ADC debounce time\n"); |
c2536543 | 235 | return ret; |
19d3243e | 236 | } |
db1b9037 CC |
237 | break; |
238 | default: | |
239 | dev_err(info->dev, "invalid ADC debounce time\n"); | |
19d3243e | 240 | return -EINVAL; |
db1b9037 CC |
241 | } |
242 | ||
19d3243e | 243 | return 0; |
db1b9037 CC |
244 | }; |
245 | ||
154f757f CC |
246 | /* |
247 | * max77693_muic_set_path - Set hardware line according to attached cable | |
248 | * @info: the instance including private data of max77693 MUIC | |
249 | * @value: the path according to attached cable | |
250 | * @attached: the state of cable (true:attached, false:detached) | |
251 | * | |
252 | * The max77693 MUIC device share outside H/W line among a varity of cables | |
253 | * so, this function set internal path of H/W line according to the type of | |
254 | * attached cable. | |
255 | */ | |
db1b9037 CC |
256 | static int max77693_muic_set_path(struct max77693_muic_info *info, |
257 | u8 val, bool attached) | |
258 | { | |
2d18baf6 | 259 | int ret; |
d0540f91 | 260 | unsigned int ctrl1, ctrl2 = 0; |
db1b9037 CC |
261 | |
262 | if (attached) | |
263 | ctrl1 = val; | |
264 | else | |
cceb433a | 265 | ctrl1 = MAX77693_CONTROL1_SW_OPEN; |
db1b9037 | 266 | |
d0540f91 RB |
267 | ret = regmap_update_bits(info->max77693->regmap_muic, |
268 | MAX77693_MUIC_REG_CTRL1, COMP_SW_MASK, ctrl1); | |
db1b9037 CC |
269 | if (ret < 0) { |
270 | dev_err(info->dev, "failed to update MUIC register\n"); | |
c2536543 | 271 | return ret; |
db1b9037 CC |
272 | } |
273 | ||
274 | if (attached) | |
cceb433a | 275 | ctrl2 |= MAX77693_CONTROL2_CPEN_MASK; /* LowPwr=0, CPEn=1 */ |
db1b9037 | 276 | else |
cceb433a | 277 | ctrl2 |= MAX77693_CONTROL2_LOWPWR_MASK; /* LowPwr=1, CPEn=0 */ |
db1b9037 | 278 | |
d0540f91 RB |
279 | ret = regmap_update_bits(info->max77693->regmap_muic, |
280 | MAX77693_MUIC_REG_CTRL2, | |
cceb433a KK |
281 | MAX77693_CONTROL2_LOWPWR_MASK | MAX77693_CONTROL2_CPEN_MASK, |
282 | ctrl2); | |
db1b9037 CC |
283 | if (ret < 0) { |
284 | dev_err(info->dev, "failed to update MUIC register\n"); | |
c2536543 | 285 | return ret; |
db1b9037 CC |
286 | } |
287 | ||
288 | dev_info(info->dev, | |
289 | "CONTROL1 : 0x%02x, CONTROL2 : 0x%02x, state : %s\n", | |
290 | ctrl1, ctrl2, attached ? "attached" : "detached"); | |
19d3243e CC |
291 | |
292 | return 0; | |
db1b9037 CC |
293 | } |
294 | ||
154f757f CC |
295 | /* |
296 | * max77693_muic_get_cable_type - Return cable type and check cable state | |
297 | * @info: the instance including private data of max77693 MUIC | |
298 | * @group: the path according to attached cable | |
299 | * @attached: store cable state and return | |
300 | * | |
301 | * This function check the cable state either attached or detached, | |
302 | * and then divide precise type of cable according to cable group. | |
303 | * - MAX77693_CABLE_GROUP_ADC | |
304 | * - MAX77693_CABLE_GROUP_ADC_GND | |
305 | * - MAX77693_CABLE_GROUP_CHG | |
306 | * - MAX77693_CABLE_GROUP_VBVOLT | |
307 | */ | |
308 | static int max77693_muic_get_cable_type(struct max77693_muic_info *info, | |
309 | enum max77693_muic_cable_group group, bool *attached) | |
db1b9037 | 310 | { |
154f757f CC |
311 | int cable_type = 0; |
312 | int adc; | |
313 | int adc1k; | |
314 | int adclow; | |
315 | int vbvolt; | |
316 | int chg_type; | |
317 | ||
318 | switch (group) { | |
319 | case MAX77693_CABLE_GROUP_ADC: | |
320 | /* | |
321 | * Read ADC value to check cable type and decide cable state | |
322 | * according to cable type | |
323 | */ | |
cceb433a KK |
324 | adc = info->status[0] & MAX77693_STATUS1_ADC_MASK; |
325 | adc >>= MAX77693_STATUS1_ADC_SHIFT; | |
154f757f CC |
326 | |
327 | /* | |
328 | * Check current cable state/cable type and store cable type | |
329 | * (info->prev_cable_type) for handling cable when cable is | |
330 | * detached. | |
331 | */ | |
332 | if (adc == MAX77693_MUIC_ADC_OPEN) { | |
333 | *attached = false; | |
334 | ||
335 | cable_type = info->prev_cable_type; | |
336 | info->prev_cable_type = MAX77693_MUIC_ADC_OPEN; | |
337 | } else { | |
338 | *attached = true; | |
339 | ||
340 | cable_type = info->prev_cable_type = adc; | |
341 | } | |
342 | break; | |
343 | case MAX77693_CABLE_GROUP_ADC_GND: | |
344 | /* | |
345 | * Read ADC value to check cable type and decide cable state | |
346 | * according to cable type | |
347 | */ | |
cceb433a KK |
348 | adc = info->status[0] & MAX77693_STATUS1_ADC_MASK; |
349 | adc >>= MAX77693_STATUS1_ADC_SHIFT; | |
db1b9037 | 350 | |
154f757f CC |
351 | /* |
352 | * Check current cable state/cable type and store cable type | |
353 | * (info->prev_cable_type/_gnd) for handling cable when cable | |
354 | * is detached. | |
355 | */ | |
356 | if (adc == MAX77693_MUIC_ADC_OPEN) { | |
357 | *attached = false; | |
358 | ||
359 | cable_type = info->prev_cable_type_gnd; | |
360 | info->prev_cable_type_gnd = MAX77693_MUIC_ADC_OPEN; | |
361 | } else { | |
362 | *attached = true; | |
363 | ||
cceb433a KK |
364 | adclow = info->status[0] & MAX77693_STATUS1_ADCLOW_MASK; |
365 | adclow >>= MAX77693_STATUS1_ADCLOW_SHIFT; | |
366 | adc1k = info->status[0] & MAX77693_STATUS1_ADC1K_MASK; | |
367 | adc1k >>= MAX77693_STATUS1_ADC1K_SHIFT; | |
154f757f | 368 | |
cceb433a KK |
369 | vbvolt = info->status[1] & MAX77693_STATUS2_VBVOLT_MASK; |
370 | vbvolt >>= MAX77693_STATUS2_VBVOLT_SHIFT; | |
154f757f CC |
371 | |
372 | /** | |
c2275d2f | 373 | * [0x1|VBVolt|ADCLow|ADC1K] |
4c883abe JK |
374 | * [0x1| 0| 0| 0] USB_HOST |
375 | * [0x1| 1| 0| 0] USB_HSOT_VB | |
c2275d2f CC |
376 | * [0x1| 0| 1| 0] Audio Video cable with load |
377 | * [0x1| 0| 1| 1] MHL without charging cable | |
378 | * [0x1| 1| 1| 1] MHL with charging cable | |
154f757f CC |
379 | */ |
380 | cable_type = ((0x1 << 8) | |
381 | | (vbvolt << 2) | |
382 | | (adclow << 1) | |
383 | | adc1k); | |
384 | ||
385 | info->prev_cable_type = adc; | |
386 | info->prev_cable_type_gnd = cable_type; | |
387 | } | |
388 | ||
389 | break; | |
390 | case MAX77693_CABLE_GROUP_CHG: | |
391 | /* | |
392 | * Read charger type to check cable type and decide cable state | |
393 | * according to type of charger cable. | |
394 | */ | |
cceb433a KK |
395 | chg_type = info->status[1] & MAX77693_STATUS2_CHGTYP_MASK; |
396 | chg_type >>= MAX77693_STATUS2_CHGTYP_SHIFT; | |
154f757f CC |
397 | |
398 | if (chg_type == MAX77693_CHARGER_TYPE_NONE) { | |
399 | *attached = false; | |
400 | ||
401 | cable_type = info->prev_chg_type; | |
402 | info->prev_chg_type = MAX77693_CHARGER_TYPE_NONE; | |
403 | } else { | |
404 | *attached = true; | |
405 | ||
406 | /* | |
407 | * Check current cable state/cable type and store cable | |
408 | * type(info->prev_chg_type) for handling cable when | |
409 | * charger cable is detached. | |
410 | */ | |
411 | cable_type = info->prev_chg_type = chg_type; | |
412 | } | |
413 | ||
414 | break; | |
415 | case MAX77693_CABLE_GROUP_VBVOLT: | |
416 | /* | |
417 | * Read ADC value to check cable type and decide cable state | |
418 | * according to cable type | |
419 | */ | |
cceb433a KK |
420 | adc = info->status[0] & MAX77693_STATUS1_ADC_MASK; |
421 | adc >>= MAX77693_STATUS1_ADC_SHIFT; | |
422 | chg_type = info->status[1] & MAX77693_STATUS2_CHGTYP_MASK; | |
423 | chg_type >>= MAX77693_STATUS2_CHGTYP_SHIFT; | |
154f757f CC |
424 | |
425 | if (adc == MAX77693_MUIC_ADC_OPEN | |
426 | && chg_type == MAX77693_CHARGER_TYPE_NONE) | |
427 | *attached = false; | |
428 | else | |
429 | *attached = true; | |
430 | ||
431 | /* | |
432 | * Read vbvolt field, if vbvolt is 1, | |
433 | * this cable is used for charging. | |
db1b9037 | 434 | */ |
cceb433a KK |
435 | vbvolt = info->status[1] & MAX77693_STATUS2_VBVOLT_MASK; |
436 | vbvolt >>= MAX77693_STATUS2_VBVOLT_SHIFT; | |
154f757f CC |
437 | |
438 | cable_type = vbvolt; | |
439 | break; | |
440 | default: | |
441 | dev_err(info->dev, "Unknown cable group (%d)\n", group); | |
442 | cable_type = -EINVAL; | |
443 | break; | |
444 | } | |
445 | ||
446 | return cable_type; | |
447 | } | |
448 | ||
39bf369e CC |
449 | static int max77693_muic_dock_handler(struct max77693_muic_info *info, |
450 | int cable_type, bool attached) | |
451 | { | |
452 | int ret = 0; | |
a1626298 CC |
453 | int vbvolt; |
454 | bool cable_attached; | |
73b6ecdb | 455 | unsigned int dock_id; |
39bf369e CC |
456 | |
457 | dev_info(info->dev, | |
458 | "external connector is %s (adc:0x%02x)\n", | |
459 | attached ? "attached" : "detached", cable_type); | |
460 | ||
461 | switch (cable_type) { | |
462 | case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */ | |
a1626298 CC |
463 | /* |
464 | * Check power cable whether attached or detached state. | |
465 | * The Dock-Smart device need surely external power supply. | |
466 | * If power cable(USB/TA) isn't connected to Dock device, | |
467 | * user can't use Dock-Smart for desktop mode. | |
468 | */ | |
469 | vbvolt = max77693_muic_get_cable_type(info, | |
470 | MAX77693_CABLE_GROUP_VBVOLT, &cable_attached); | |
471 | if (attached && !vbvolt) { | |
472 | dev_warn(info->dev, | |
473 | "Cannot detect external power supply\n"); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | /* | |
d519c423 CC |
478 | * Notify Dock/MHL state. |
479 | * - Dock device include three type of cable which | |
a1626298 | 480 | * are HDMI, USB for mouse/keyboard and micro-usb port |
d519c423 CC |
481 | * for USB/TA cable. Dock device need always exteranl |
482 | * power supply(USB/TA cable through micro-usb cable). Dock | |
483 | * device support screen output of target to separate | |
a1626298 CC |
484 | * monitor and mouse/keyboard for desktop mode. |
485 | * | |
d519c423 | 486 | * Features of 'USB/TA cable with Dock device' |
a1626298 CC |
487 | * - Support MHL |
488 | * - Support external output feature of audio | |
489 | * - Support charging through micro-usb port without data | |
490 | * connection if TA cable is connected to target. | |
491 | * - Support charging and data connection through micro-usb port | |
492 | * if USB cable is connected between target and host | |
493 | * device. | |
4c883abe | 494 | * - Support OTG(On-The-Go) device (Ex: Mouse/Keyboard) |
a1626298 CC |
495 | */ |
496 | ret = max77693_muic_set_path(info, info->path_usb, attached); | |
39bf369e | 497 | if (ret < 0) |
a1626298 | 498 | return ret; |
39bf369e | 499 | |
8670b459 CC |
500 | extcon_set_state_sync(info->edev, EXTCON_DOCK, attached); |
501 | extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached); | |
39bf369e | 502 | goto out; |
39bf369e | 503 | case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */ |
2a9de9c0 | 504 | dock_id = EXTCON_DOCK; |
39bf369e CC |
505 | break; |
506 | case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */ | |
2a9de9c0 | 507 | dock_id = EXTCON_DOCK; |
8b45b6a0 | 508 | if (!attached) { |
8670b459 CC |
509 | extcon_set_state_sync(info->edev, EXTCON_USB, false); |
510 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP, | |
8b45b6a0 CC |
511 | false); |
512 | } | |
39bf369e | 513 | break; |
19d3243e CC |
514 | default: |
515 | dev_err(info->dev, "failed to detect %s dock device\n", | |
516 | attached ? "attached" : "detached"); | |
517 | return -EINVAL; | |
39bf369e CC |
518 | } |
519 | ||
520 | /* Dock-Car/Desk/Audio, PATH:AUDIO */ | |
cceb433a KK |
521 | ret = max77693_muic_set_path(info, MAX77693_CONTROL1_SW_AUDIO, |
522 | attached); | |
39bf369e | 523 | if (ret < 0) |
a1626298 | 524 | return ret; |
8670b459 | 525 | extcon_set_state_sync(info->edev, dock_id, attached); |
39bf369e CC |
526 | |
527 | out: | |
a1626298 | 528 | return 0; |
39bf369e CC |
529 | } |
530 | ||
531 | static int max77693_muic_dock_button_handler(struct max77693_muic_info *info, | |
532 | int button_type, bool attached) | |
533 | { | |
534 | struct input_dev *dock = info->dock; | |
535 | unsigned int code; | |
39bf369e CC |
536 | |
537 | switch (button_type) { | |
538 | case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON-1 | |
539 | ... MAX77693_MUIC_ADC_REMOTE_S3_BUTTON+1: | |
540 | /* DOCK_KEY_PREV */ | |
541 | code = KEY_PREVIOUSSONG; | |
542 | break; | |
543 | case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON-1 | |
544 | ... MAX77693_MUIC_ADC_REMOTE_S7_BUTTON+1: | |
545 | /* DOCK_KEY_NEXT */ | |
546 | code = KEY_NEXTSONG; | |
547 | break; | |
548 | case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON: | |
549 | /* DOCK_VOL_DOWN */ | |
550 | code = KEY_VOLUMEDOWN; | |
551 | break; | |
552 | case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON: | |
553 | /* DOCK_VOL_UP */ | |
554 | code = KEY_VOLUMEUP; | |
555 | break; | |
556 | case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON-1 | |
557 | ... MAX77693_MUIC_ADC_REMOTE_S12_BUTTON+1: | |
558 | /* DOCK_KEY_PLAY_PAUSE */ | |
559 | code = KEY_PLAYPAUSE; | |
560 | break; | |
561 | default: | |
562 | dev_err(info->dev, | |
563 | "failed to detect %s key (adc:0x%x)\n", | |
564 | attached ? "pressed" : "released", button_type); | |
19d3243e | 565 | return -EINVAL; |
39bf369e CC |
566 | } |
567 | ||
568 | input_event(dock, EV_KEY, code, attached); | |
569 | input_sync(dock); | |
570 | ||
39bf369e CC |
571 | return 0; |
572 | } | |
573 | ||
154f757f CC |
574 | static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info) |
575 | { | |
576 | int cable_type_gnd; | |
577 | int ret = 0; | |
578 | bool attached; | |
db1b9037 | 579 | |
154f757f CC |
580 | cable_type_gnd = max77693_muic_get_cable_type(info, |
581 | MAX77693_CABLE_GROUP_ADC_GND, &attached); | |
db1b9037 | 582 | |
154f757f | 583 | switch (cable_type_gnd) { |
4c883abe JK |
584 | case MAX77693_MUIC_GND_USB_HOST: |
585 | case MAX77693_MUIC_GND_USB_HOST_VB: | |
586 | /* USB_HOST, PATH: AP_USB */ | |
cceb433a KK |
587 | ret = max77693_muic_set_path(info, MAX77693_CONTROL1_SW_USB, |
588 | attached); | |
db1b9037 | 589 | if (ret < 0) |
19d3243e | 590 | return ret; |
8670b459 | 591 | extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached); |
db1b9037 CC |
592 | break; |
593 | case MAX77693_MUIC_GND_AV_CABLE_LOAD: | |
06bed0af | 594 | /* Audio Video Cable with load, PATH:AUDIO */ |
cceb433a KK |
595 | ret = max77693_muic_set_path(info, MAX77693_CONTROL1_SW_AUDIO, |
596 | attached); | |
db1b9037 | 597 | if (ret < 0) |
19d3243e | 598 | return ret; |
8670b459 CC |
599 | extcon_set_state_sync(info->edev, EXTCON_USB, attached); |
600 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP, | |
8b45b6a0 | 601 | attached); |
db1b9037 | 602 | break; |
06bed0af CC |
603 | case MAX77693_MUIC_GND_MHL: |
604 | case MAX77693_MUIC_GND_MHL_VB: | |
605 | /* MHL or MHL with USB/TA cable */ | |
8670b459 | 606 | extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached); |
db1b9037 CC |
607 | break; |
608 | default: | |
19d3243e | 609 | dev_err(info->dev, "failed to detect %s cable of gnd type\n", |
db1b9037 | 610 | attached ? "attached" : "detached"); |
19d3243e | 611 | return -EINVAL; |
db1b9037 CC |
612 | } |
613 | ||
19d3243e | 614 | return 0; |
db1b9037 CC |
615 | } |
616 | ||
d0587eb7 CC |
617 | static int max77693_muic_jig_handler(struct max77693_muic_info *info, |
618 | int cable_type, bool attached) | |
619 | { | |
d0587eb7 | 620 | int ret = 0; |
cceb433a | 621 | u8 path = MAX77693_CONTROL1_SW_OPEN; |
d0587eb7 CC |
622 | |
623 | dev_info(info->dev, | |
624 | "external connector is %s (adc:0x%02x)\n", | |
625 | attached ? "attached" : "detached", cable_type); | |
626 | ||
627 | switch (cable_type) { | |
628 | case MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF: /* ADC_JIG_USB_OFF */ | |
d0587eb7 CC |
629 | case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON: /* ADC_JIG_USB_ON */ |
630 | /* PATH:AP_USB */ | |
cceb433a | 631 | path = MAX77693_CONTROL1_SW_USB; |
d0587eb7 CC |
632 | break; |
633 | case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF: /* ADC_JIG_UART_OFF */ | |
c22159a2 KK |
634 | case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: /* ADC_JIG_UART_ON */ |
635 | /* PATH:AP_UART */ | |
cceb433a | 636 | path = MAX77693_CONTROL1_SW_UART; |
c22159a2 | 637 | break; |
19d3243e CC |
638 | default: |
639 | dev_err(info->dev, "failed to detect %s jig cable\n", | |
640 | attached ? "attached" : "detached"); | |
641 | return -EINVAL; | |
d0587eb7 CC |
642 | } |
643 | ||
644 | ret = max77693_muic_set_path(info, path, attached); | |
645 | if (ret < 0) | |
19d3243e | 646 | return ret; |
d0587eb7 | 647 | |
8670b459 | 648 | extcon_set_state_sync(info->edev, EXTCON_JIG, attached); |
19d3243e CC |
649 | |
650 | return 0; | |
d0587eb7 CC |
651 | } |
652 | ||
154f757f | 653 | static int max77693_muic_adc_handler(struct max77693_muic_info *info) |
db1b9037 | 654 | { |
154f757f | 655 | int cable_type; |
39bf369e | 656 | int button_type; |
154f757f | 657 | bool attached; |
db1b9037 | 658 | int ret = 0; |
db1b9037 | 659 | |
154f757f CC |
660 | /* Check accessory state which is either detached or attached */ |
661 | cable_type = max77693_muic_get_cable_type(info, | |
662 | MAX77693_CABLE_GROUP_ADC, &attached); | |
db1b9037 CC |
663 | |
664 | dev_info(info->dev, | |
665 | "external connector is %s (adc:0x%02x, prev_adc:0x%x)\n", | |
154f757f CC |
666 | attached ? "attached" : "detached", cable_type, |
667 | info->prev_cable_type); | |
db1b9037 | 668 | |
154f757f | 669 | switch (cable_type) { |
db1b9037 | 670 | case MAX77693_MUIC_ADC_GROUND: |
4c883abe | 671 | /* USB_HOST/MHL/Audio */ |
154f757f | 672 | max77693_muic_adc_ground_handler(info); |
db1b9037 CC |
673 | break; |
674 | case MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF: | |
675 | case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON: | |
db1b9037 | 676 | case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF: |
c22159a2 | 677 | case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: |
db1b9037 | 678 | /* JIG */ |
d0587eb7 | 679 | ret = max77693_muic_jig_handler(info, cable_type, attached); |
db1b9037 | 680 | if (ret < 0) |
19d3243e | 681 | return ret; |
db1b9037 | 682 | break; |
39bf369e | 683 | case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */ |
39bf369e CC |
684 | case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */ |
685 | case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */ | |
686 | /* | |
687 | * DOCK device | |
688 | * | |
689 | * The MAX77693 MUIC device can detect total 34 cable type | |
690 | * except of charger cable and MUIC device didn't define | |
691 | * specfic role of cable in the range of from 0x01 to 0x12 | |
692 | * of ADC value. So, can use/define cable with no role according | |
693 | * to schema of hardware board. | |
694 | */ | |
695 | ret = max77693_muic_dock_handler(info, cable_type, attached); | |
696 | if (ret < 0) | |
19d3243e | 697 | return ret; |
39bf369e | 698 | break; |
c2275d2f CC |
699 | case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON: /* DOCK_KEY_PREV */ |
700 | case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON: /* DOCK_KEY_NEXT */ | |
701 | case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON: /* DOCK_VOL_DOWN */ | |
702 | case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON: /* DOCK_VOL_UP */ | |
703 | case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON: /* DOCK_KEY_PLAY_PAUSE */ | |
39bf369e CC |
704 | /* |
705 | * Button of DOCK device | |
706 | * - the Prev/Next/Volume Up/Volume Down/Play-Pause button | |
707 | * | |
708 | * The MAX77693 MUIC device can detect total 34 cable type | |
709 | * except of charger cable and MUIC device didn't define | |
710 | * specfic role of cable in the range of from 0x01 to 0x12 | |
711 | * of ADC value. So, can use/define cable with no role according | |
712 | * to schema of hardware board. | |
713 | */ | |
714 | if (attached) | |
715 | button_type = info->prev_button_type = cable_type; | |
716 | else | |
717 | button_type = info->prev_button_type; | |
718 | ||
719 | ret = max77693_muic_dock_button_handler(info, button_type, | |
720 | attached); | |
db1b9037 | 721 | if (ret < 0) |
19d3243e | 722 | return ret; |
db1b9037 CC |
723 | break; |
724 | case MAX77693_MUIC_ADC_SEND_END_BUTTON: | |
725 | case MAX77693_MUIC_ADC_REMOTE_S1_BUTTON: | |
726 | case MAX77693_MUIC_ADC_REMOTE_S2_BUTTON: | |
db1b9037 CC |
727 | case MAX77693_MUIC_ADC_REMOTE_S4_BUTTON: |
728 | case MAX77693_MUIC_ADC_REMOTE_S5_BUTTON: | |
729 | case MAX77693_MUIC_ADC_REMOTE_S6_BUTTON: | |
db1b9037 | 730 | case MAX77693_MUIC_ADC_REMOTE_S8_BUTTON: |
db1b9037 | 731 | case MAX77693_MUIC_ADC_REMOTE_S11_BUTTON: |
db1b9037 CC |
732 | case MAX77693_MUIC_ADC_RESERVED_ACC_1: |
733 | case MAX77693_MUIC_ADC_RESERVED_ACC_2: | |
db1b9037 CC |
734 | case MAX77693_MUIC_ADC_RESERVED_ACC_4: |
735 | case MAX77693_MUIC_ADC_RESERVED_ACC_5: | |
736 | case MAX77693_MUIC_ADC_CEA936_AUDIO: | |
737 | case MAX77693_MUIC_ADC_PHONE_POWERED_DEV: | |
738 | case MAX77693_MUIC_ADC_TTY_CONVERTER: | |
739 | case MAX77693_MUIC_ADC_UART_CABLE: | |
740 | case MAX77693_MUIC_ADC_CEA936A_TYPE1_CHG: | |
db1b9037 | 741 | case MAX77693_MUIC_ADC_CEA936A_TYPE2_CHG: |
39bf369e CC |
742 | /* |
743 | * This accessory isn't used in general case if it is specially | |
744 | * needed to detect additional accessory, should implement | |
745 | * proper operation when this accessory is attached/detached. | |
746 | */ | |
db1b9037 CC |
747 | dev_info(info->dev, |
748 | "accessory is %s but it isn't used (adc:0x%x)\n", | |
154f757f | 749 | attached ? "attached" : "detached", cable_type); |
19d3243e | 750 | return -EAGAIN; |
db1b9037 CC |
751 | default: |
752 | dev_err(info->dev, | |
753 | "failed to detect %s accessory (adc:0x%x)\n", | |
154f757f | 754 | attached ? "attached" : "detached", cable_type); |
19d3243e | 755 | return -EINVAL; |
db1b9037 CC |
756 | } |
757 | ||
19d3243e | 758 | return 0; |
db1b9037 CC |
759 | } |
760 | ||
154f757f | 761 | static int max77693_muic_chg_handler(struct max77693_muic_info *info) |
db1b9037 | 762 | { |
db1b9037 | 763 | int chg_type; |
06bed0af | 764 | int cable_type_gnd; |
39bf369e | 765 | int cable_type; |
154f757f | 766 | bool attached; |
06bed0af | 767 | bool cable_attached; |
154f757f | 768 | int ret = 0; |
db1b9037 | 769 | |
154f757f CC |
770 | chg_type = max77693_muic_get_cable_type(info, |
771 | MAX77693_CABLE_GROUP_CHG, &attached); | |
db1b9037 CC |
772 | |
773 | dev_info(info->dev, | |
774 | "external connector is %s(chg_type:0x%x, prev_chg_type:0x%x)\n", | |
775 | attached ? "attached" : "detached", | |
154f757f | 776 | chg_type, info->prev_chg_type); |
db1b9037 CC |
777 | |
778 | switch (chg_type) { | |
779 | case MAX77693_CHARGER_TYPE_USB: | |
a1626298 | 780 | case MAX77693_CHARGER_TYPE_DEDICATED_CHG: |
0e2738f5 | 781 | case MAX77693_CHARGER_TYPE_NONE: |
a1626298 | 782 | /* Check MAX77693_CABLE_GROUP_ADC_GND type */ |
06bed0af CC |
783 | cable_type_gnd = max77693_muic_get_cable_type(info, |
784 | MAX77693_CABLE_GROUP_ADC_GND, | |
785 | &cable_attached); | |
a1626298 CC |
786 | switch (cable_type_gnd) { |
787 | case MAX77693_MUIC_GND_MHL: | |
788 | case MAX77693_MUIC_GND_MHL_VB: | |
789 | /* | |
942e0239 | 790 | * MHL cable with USB/TA cable |
c2275d2f CC |
791 | * - MHL cable include two port(HDMI line and separate |
792 | * micro-usb port. When the target connect MHL cable, | |
942e0239 CC |
793 | * extcon driver check whether USB/TA cable is |
794 | * connected. If USB/TA cable is connected, extcon | |
c2275d2f | 795 | * driver notify state to notifiee for charging battery. |
a1626298 | 796 | * |
942e0239 | 797 | * Features of 'USB/TA with MHL cable' |
a1626298 | 798 | * - Support MHL |
c2275d2f CC |
799 | * - Support charging through micro-usb port without |
800 | * data connection | |
a1626298 | 801 | */ |
8670b459 | 802 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, |
11eecf91 | 803 | attached); |
4243c408 MP |
804 | extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, |
805 | cable_attached); | |
a1626298 | 806 | break; |
39bf369e CC |
807 | } |
808 | ||
a1626298 | 809 | /* Check MAX77693_CABLE_GROUP_ADC type */ |
39bf369e CC |
810 | cable_type = max77693_muic_get_cable_type(info, |
811 | MAX77693_CABLE_GROUP_ADC, | |
812 | &cable_attached); | |
a1626298 CC |
813 | switch (cable_type) { |
814 | case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */ | |
815 | /* | |
816 | * Dock-Audio device with USB/TA cable | |
c2275d2f CC |
817 | * - Dock device include two port(Dock-Audio and micro- |
818 | * usb port). When the target connect Dock-Audio device, | |
819 | * extcon driver check whether USB/TA cable is connected | |
820 | * or not. If USB/TA cable is connected, extcon driver | |
821 | * notify state to notifiee for charging battery. | |
a1626298 CC |
822 | * |
823 | * Features of 'USB/TA cable with Dock-Audio device' | |
824 | * - Support external output feature of audio. | |
c2275d2f CC |
825 | * - Support charging through micro-usb port without |
826 | * data connection. | |
a1626298 | 827 | */ |
8670b459 | 828 | extcon_set_state_sync(info->edev, EXTCON_USB, |
2a9de9c0 | 829 | attached); |
8670b459 | 830 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP, |
8b45b6a0 | 831 | attached); |
39bf369e CC |
832 | |
833 | if (!cable_attached) | |
8670b459 | 834 | extcon_set_state_sync(info->edev, EXTCON_DOCK, |
2a9de9c0 | 835 | cable_attached); |
a1626298 CC |
836 | break; |
837 | case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */ | |
838 | /* | |
839 | * Dock-Smart device with USB/TA cable | |
840 | * - Dock-Desk device include three type of cable which | |
841 | * are HDMI, USB for mouse/keyboard and micro-usb port | |
c2275d2f CC |
842 | * for USB/TA cable. Dock-Smart device need always |
843 | * exteranl power supply(USB/TA cable through micro-usb | |
844 | * cable). Dock-Smart device support screen output of | |
845 | * target to separate monitor and mouse/keyboard for | |
846 | * desktop mode. | |
a1626298 CC |
847 | * |
848 | * Features of 'USB/TA cable with Dock-Smart device' | |
849 | * - Support MHL | |
850 | * - Support external output feature of audio | |
c2275d2f CC |
851 | * - Support charging through micro-usb port without |
852 | * data connection if TA cable is connected to target. | |
853 | * - Support charging and data connection through micro- | |
854 | * usb port if USB cable is connected between target | |
855 | * and host device | |
4c883abe | 856 | * - Support OTG(On-The-Go) device (Ex: Mouse/Keyboard) |
a1626298 | 857 | */ |
c2275d2f CC |
858 | ret = max77693_muic_set_path(info, info->path_usb, |
859 | attached); | |
a1626298 CC |
860 | if (ret < 0) |
861 | return ret; | |
862 | ||
8670b459 | 863 | extcon_set_state_sync(info->edev, EXTCON_DOCK, |
2a9de9c0 | 864 | attached); |
8670b459 | 865 | extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, |
2a9de9c0 | 866 | attached); |
a1626298 | 867 | break; |
06bed0af | 868 | } |
39bf369e | 869 | |
a1626298 CC |
870 | /* Check MAX77693_CABLE_GROUP_CHG type */ |
871 | switch (chg_type) { | |
872 | case MAX77693_CHARGER_TYPE_NONE: | |
873 | /* | |
c2275d2f CC |
874 | * When MHL(with USB/TA cable) or Dock-Audio with USB/TA |
875 | * cable is attached, muic device happen below two irq. | |
876 | * - 'MAX77693_MUIC_IRQ_INT1_ADC' for detecting | |
877 | * MHL/Dock-Audio. | |
878 | * - 'MAX77693_MUIC_IRQ_INT2_CHGTYP' for detecting | |
879 | * USB/TA cable connected to MHL or Dock-Audio. | |
880 | * Always, happen eariler MAX77693_MUIC_IRQ_INT1_ADC | |
881 | * irq than MAX77693_MUIC_IRQ_INT2_CHGTYP irq. | |
a1626298 | 882 | * |
c2275d2f CC |
883 | * If user attach MHL (with USB/TA cable and immediately |
884 | * detach MHL with USB/TA cable before MAX77693_MUIC_IRQ | |
885 | * _INT2_CHGTYP irq is happened, USB/TA cable remain | |
886 | * connected state to target. But USB/TA cable isn't | |
887 | * connected to target. The user be face with unusual | |
888 | * action. So, driver should check this situation in | |
889 | * spite of, that previous charger type is N/A. | |
a1626298 | 890 | */ |
0e2738f5 | 891 | break; |
a1626298 CC |
892 | case MAX77693_CHARGER_TYPE_USB: |
893 | /* Only USB cable, PATH:AP_USB */ | |
c2275d2f CC |
894 | ret = max77693_muic_set_path(info, info->path_usb, |
895 | attached); | |
a1626298 CC |
896 | if (ret < 0) |
897 | return ret; | |
0e2738f5 | 898 | |
8670b459 | 899 | extcon_set_state_sync(info->edev, EXTCON_USB, |
2a9de9c0 | 900 | attached); |
8670b459 | 901 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP, |
8b45b6a0 | 902 | attached); |
a1626298 CC |
903 | break; |
904 | case MAX77693_CHARGER_TYPE_DEDICATED_CHG: | |
905 | /* Only TA cable */ | |
8670b459 | 906 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, |
11eecf91 | 907 | attached); |
a1626298 CC |
908 | break; |
909 | } | |
db1b9037 CC |
910 | break; |
911 | case MAX77693_CHARGER_TYPE_DOWNSTREAM_PORT: | |
8670b459 | 912 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP, |
2a9de9c0 | 913 | attached); |
db1b9037 | 914 | break; |
db1b9037 | 915 | case MAX77693_CHARGER_TYPE_APPLE_500MA: |
8670b459 | 916 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW, |
2a9de9c0 | 917 | attached); |
db1b9037 CC |
918 | break; |
919 | case MAX77693_CHARGER_TYPE_APPLE_1A_2A: | |
8670b459 | 920 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST, |
2a9de9c0 | 921 | attached); |
db1b9037 CC |
922 | break; |
923 | case MAX77693_CHARGER_TYPE_DEAD_BATTERY: | |
924 | break; | |
925 | default: | |
926 | dev_err(info->dev, | |
927 | "failed to detect %s accessory (chg_type:0x%x)\n", | |
928 | attached ? "attached" : "detached", chg_type); | |
a1626298 | 929 | return -EINVAL; |
db1b9037 CC |
930 | } |
931 | ||
a1626298 | 932 | return 0; |
db1b9037 CC |
933 | } |
934 | ||
935 | static void max77693_muic_irq_work(struct work_struct *work) | |
936 | { | |
937 | struct max77693_muic_info *info = container_of(work, | |
938 | struct max77693_muic_info, irq_work); | |
db1b9037 CC |
939 | int irq_type = -1; |
940 | int i, ret = 0; | |
db1b9037 CC |
941 | |
942 | if (!info->edev) | |
943 | return; | |
944 | ||
945 | mutex_lock(&info->mutex); | |
946 | ||
a33411b2 | 947 | for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) |
db1b9037 CC |
948 | if (info->irq == muic_irqs[i].virq) |
949 | irq_type = muic_irqs[i].irq; | |
950 | ||
d0540f91 RB |
951 | ret = regmap_bulk_read(info->max77693->regmap_muic, |
952 | MAX77693_MUIC_REG_STATUS1, info->status, 2); | |
db1b9037 CC |
953 | if (ret) { |
954 | dev_err(info->dev, "failed to read MUIC register\n"); | |
955 | mutex_unlock(&info->mutex); | |
956 | return; | |
957 | } | |
958 | ||
959 | switch (irq_type) { | |
960 | case MAX77693_MUIC_IRQ_INT1_ADC: | |
961 | case MAX77693_MUIC_IRQ_INT1_ADC_LOW: | |
962 | case MAX77693_MUIC_IRQ_INT1_ADC_ERR: | |
963 | case MAX77693_MUIC_IRQ_INT1_ADC1K: | |
af57fa4d SR |
964 | /* |
965 | * Handle all of accessory except for | |
966 | * type of charger accessory. | |
967 | */ | |
154f757f | 968 | ret = max77693_muic_adc_handler(info); |
db1b9037 CC |
969 | break; |
970 | case MAX77693_MUIC_IRQ_INT2_CHGTYP: | |
971 | case MAX77693_MUIC_IRQ_INT2_CHGDETREUN: | |
972 | case MAX77693_MUIC_IRQ_INT2_DCDTMR: | |
973 | case MAX77693_MUIC_IRQ_INT2_DXOVP: | |
974 | case MAX77693_MUIC_IRQ_INT2_VBVOLT: | |
975 | case MAX77693_MUIC_IRQ_INT2_VIDRM: | |
976 | /* Handle charger accessory */ | |
154f757f | 977 | ret = max77693_muic_chg_handler(info); |
db1b9037 CC |
978 | break; |
979 | case MAX77693_MUIC_IRQ_INT3_EOC: | |
980 | case MAX77693_MUIC_IRQ_INT3_CGMBC: | |
981 | case MAX77693_MUIC_IRQ_INT3_OVP: | |
982 | case MAX77693_MUIC_IRQ_INT3_MBCCHG_ERR: | |
983 | case MAX77693_MUIC_IRQ_INT3_CHG_ENABLED: | |
984 | case MAX77693_MUIC_IRQ_INT3_BAT_DET: | |
985 | break; | |
986 | default: | |
987 | dev_err(info->dev, "muic interrupt: irq %d occurred\n", | |
988 | irq_type); | |
19d3243e CC |
989 | mutex_unlock(&info->mutex); |
990 | return; | |
db1b9037 CC |
991 | } |
992 | ||
993 | if (ret < 0) | |
994 | dev_err(info->dev, "failed to handle MUIC interrupt\n"); | |
995 | ||
996 | mutex_unlock(&info->mutex); | |
db1b9037 CC |
997 | } |
998 | ||
999 | static irqreturn_t max77693_muic_irq_handler(int irq, void *data) | |
1000 | { | |
1001 | struct max77693_muic_info *info = data; | |
1002 | ||
1003 | info->irq = irq; | |
1004 | schedule_work(&info->irq_work); | |
1005 | ||
1006 | return IRQ_HANDLED; | |
1007 | } | |
1008 | ||
65948900 | 1009 | static const struct regmap_config max77693_muic_regmap_config = { |
db1b9037 CC |
1010 | .reg_bits = 8, |
1011 | .val_bits = 8, | |
1012 | }; | |
1013 | ||
1014 | static int max77693_muic_detect_accessory(struct max77693_muic_info *info) | |
1015 | { | |
1016 | int ret = 0; | |
154f757f CC |
1017 | int adc; |
1018 | int chg_type; | |
1019 | bool attached; | |
db1b9037 CC |
1020 | |
1021 | mutex_lock(&info->mutex); | |
1022 | ||
1023 | /* Read STATUSx register to detect accessory */ | |
d0540f91 RB |
1024 | ret = regmap_bulk_read(info->max77693->regmap_muic, |
1025 | MAX77693_MUIC_REG_STATUS1, info->status, 2); | |
db1b9037 CC |
1026 | if (ret) { |
1027 | dev_err(info->dev, "failed to read MUIC register\n"); | |
1028 | mutex_unlock(&info->mutex); | |
c2536543 | 1029 | return ret; |
db1b9037 CC |
1030 | } |
1031 | ||
154f757f CC |
1032 | adc = max77693_muic_get_cable_type(info, MAX77693_CABLE_GROUP_ADC, |
1033 | &attached); | |
1034 | if (attached && adc != MAX77693_MUIC_ADC_OPEN) { | |
1035 | ret = max77693_muic_adc_handler(info); | |
19d3243e | 1036 | if (ret < 0) { |
154f757f | 1037 | dev_err(info->dev, "Cannot detect accessory\n"); |
19d3243e CC |
1038 | mutex_unlock(&info->mutex); |
1039 | return ret; | |
1040 | } | |
db1b9037 CC |
1041 | } |
1042 | ||
154f757f CC |
1043 | chg_type = max77693_muic_get_cable_type(info, MAX77693_CABLE_GROUP_CHG, |
1044 | &attached); | |
1045 | if (attached && chg_type != MAX77693_CHARGER_TYPE_NONE) { | |
1046 | ret = max77693_muic_chg_handler(info); | |
19d3243e | 1047 | if (ret < 0) { |
154f757f | 1048 | dev_err(info->dev, "Cannot detect charger accessory\n"); |
19d3243e CC |
1049 | mutex_unlock(&info->mutex); |
1050 | return ret; | |
1051 | } | |
db1b9037 CC |
1052 | } |
1053 | ||
db1b9037 | 1054 | mutex_unlock(&info->mutex); |
154f757f | 1055 | |
19d3243e | 1056 | return 0; |
db1b9037 CC |
1057 | } |
1058 | ||
297620fd CC |
1059 | static void max77693_muic_detect_cable_wq(struct work_struct *work) |
1060 | { | |
1061 | struct max77693_muic_info *info = container_of(to_delayed_work(work), | |
1062 | struct max77693_muic_info, wq_detcable); | |
1063 | ||
1064 | max77693_muic_detect_accessory(info); | |
1065 | } | |
1066 | ||
44f34fd4 | 1067 | static int max77693_muic_probe(struct platform_device *pdev) |
db1b9037 CC |
1068 | { |
1069 | struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent); | |
f8457d57 | 1070 | struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev); |
db1b9037 | 1071 | struct max77693_muic_info *info; |
0ec83bd2 CC |
1072 | struct max77693_reg_data *init_data; |
1073 | int num_init_data; | |
297620fd | 1074 | int delay_jiffies; |
6865f2ef MS |
1075 | int cable_type; |
1076 | bool attached; | |
297620fd CC |
1077 | int ret; |
1078 | int i; | |
d0540f91 | 1079 | unsigned int id; |
db1b9037 | 1080 | |
f4bb5cb5 SK |
1081 | info = devm_kzalloc(&pdev->dev, sizeof(struct max77693_muic_info), |
1082 | GFP_KERNEL); | |
0a16ee63 | 1083 | if (!info) |
f4bb5cb5 | 1084 | return -ENOMEM; |
0a16ee63 | 1085 | |
db1b9037 CC |
1086 | info->dev = &pdev->dev; |
1087 | info->max77693 = max77693; | |
1967fa08 | 1088 | if (info->max77693->regmap_muic) { |
b186b124 | 1089 | dev_dbg(&pdev->dev, "allocate register map\n"); |
1967fa08 | 1090 | } else { |
b186b124 | 1091 | info->max77693->regmap_muic = devm_regmap_init_i2c( |
61b305cd | 1092 | info->max77693->i2c_muic, |
b186b124 CC |
1093 | &max77693_muic_regmap_config); |
1094 | if (IS_ERR(info->max77693->regmap_muic)) { | |
1095 | ret = PTR_ERR(info->max77693->regmap_muic); | |
1096 | dev_err(max77693->dev, | |
1097 | "failed to allocate register map: %d\n", ret); | |
3bf742ff | 1098 | return ret; |
b186b124 | 1099 | } |
db1b9037 | 1100 | } |
39bf369e CC |
1101 | |
1102 | /* Register input device for button of dock device */ | |
eff7d74f | 1103 | info->dock = devm_input_allocate_device(&pdev->dev); |
39bf369e CC |
1104 | if (!info->dock) { |
1105 | dev_err(&pdev->dev, "%s: failed to allocate input\n", __func__); | |
1106 | return -ENOMEM; | |
1107 | } | |
1108 | info->dock->name = "max77693-muic/dock"; | |
1109 | info->dock->phys = "max77693-muic/extcon"; | |
1110 | info->dock->dev.parent = &pdev->dev; | |
1111 | ||
1112 | __set_bit(EV_REP, info->dock->evbit); | |
1113 | ||
1114 | input_set_capability(info->dock, EV_KEY, KEY_VOLUMEUP); | |
1115 | input_set_capability(info->dock, EV_KEY, KEY_VOLUMEDOWN); | |
1116 | input_set_capability(info->dock, EV_KEY, KEY_PLAYPAUSE); | |
1117 | input_set_capability(info->dock, EV_KEY, KEY_PREVIOUSSONG); | |
1118 | input_set_capability(info->dock, EV_KEY, KEY_NEXTSONG); | |
1119 | ||
1120 | ret = input_register_device(info->dock); | |
1121 | if (ret < 0) { | |
1122 | dev_err(&pdev->dev, "Cannot register input device error(%d)\n", | |
1123 | ret); | |
1124 | return ret; | |
1125 | } | |
1126 | ||
db1b9037 CC |
1127 | platform_set_drvdata(pdev, info); |
1128 | mutex_init(&info->mutex); | |
1129 | ||
1130 | INIT_WORK(&info->irq_work, max77693_muic_irq_work); | |
1131 | ||
1132 | /* Support irq domain for MAX77693 MUIC device */ | |
1133 | for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) { | |
1134 | struct max77693_muic_irq *muic_irq = &muic_irqs[i]; | |
cbc46603 | 1135 | int virq; |
db1b9037 | 1136 | |
342d669c RB |
1137 | virq = regmap_irq_get_virq(max77693->irq_data_muic, |
1138 | muic_irq->irq); | |
cbc46603 | 1139 | if (virq <= 0) |
d7155231 | 1140 | return -EINVAL; |
db1b9037 CC |
1141 | muic_irq->virq = virq; |
1142 | ||
d7155231 | 1143 | ret = devm_request_threaded_irq(&pdev->dev, virq, NULL, |
db1b9037 | 1144 | max77693_muic_irq_handler, |
ae3b3215 CC |
1145 | IRQF_NO_SUSPEND, |
1146 | muic_irq->name, info); | |
db1b9037 CC |
1147 | if (ret) { |
1148 | dev_err(&pdev->dev, | |
34825e51 | 1149 | "failed: irq request (IRQ: %d, error :%d)\n", |
db1b9037 | 1150 | muic_irq->irq, ret); |
d7155231 | 1151 | return ret; |
db1b9037 CC |
1152 | } |
1153 | } | |
1154 | ||
1155 | /* Initialize extcon device */ | |
577bef11 CC |
1156 | info->edev = devm_extcon_dev_allocate(&pdev->dev, |
1157 | max77693_extcon_cable); | |
1158 | if (IS_ERR(info->edev)) { | |
db1b9037 | 1159 | dev_err(&pdev->dev, "failed to allocate memory for extcon\n"); |
d7155231 | 1160 | return -ENOMEM; |
db1b9037 | 1161 | } |
577bef11 | 1162 | |
10fae118 | 1163 | ret = devm_extcon_dev_register(&pdev->dev, info->edev); |
db1b9037 CC |
1164 | if (ret) { |
1165 | dev_err(&pdev->dev, "failed to register extcon device\n"); | |
d7155231 | 1166 | return ret; |
db1b9037 CC |
1167 | } |
1168 | ||
0ec83bd2 | 1169 | /* Initialize MUIC register by using platform data or default data */ |
d5653f2b | 1170 | if (pdata && pdata->muic_data) { |
0ec83bd2 CC |
1171 | init_data = pdata->muic_data->init_data; |
1172 | num_init_data = pdata->muic_data->num_init_data; | |
1173 | } else { | |
1174 | init_data = default_init_data; | |
1175 | num_init_data = ARRAY_SIZE(default_init_data); | |
1176 | } | |
1177 | ||
a33411b2 | 1178 | for (i = 0; i < num_init_data; i++) { |
d0540f91 | 1179 | regmap_write(info->max77693->regmap_muic, |
0ec83bd2 CC |
1180 | init_data[i].addr, |
1181 | init_data[i].data); | |
0ec83bd2 CC |
1182 | } |
1183 | ||
d5653f2b | 1184 | if (pdata && pdata->muic_data) { |
c2275d2f CC |
1185 | struct max77693_muic_platform_data *muic_pdata |
1186 | = pdata->muic_data; | |
0ec83bd2 | 1187 | |
190d7cfc CC |
1188 | /* |
1189 | * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB | |
1190 | * h/w path of COMP2/COMN1 on CONTROL1 register. | |
1191 | */ | |
1192 | if (muic_pdata->path_uart) | |
1193 | info->path_uart = muic_pdata->path_uart; | |
1194 | else | |
cceb433a | 1195 | info->path_uart = MAX77693_CONTROL1_SW_UART; |
f8457d57 | 1196 | |
190d7cfc CC |
1197 | if (muic_pdata->path_usb) |
1198 | info->path_usb = muic_pdata->path_usb; | |
1199 | else | |
cceb433a | 1200 | info->path_usb = MAX77693_CONTROL1_SW_USB; |
2b75799f | 1201 | |
190d7cfc CC |
1202 | /* |
1203 | * Default delay time for detecting cable state | |
1204 | * after certain time. | |
1205 | */ | |
1206 | if (muic_pdata->detcable_delay_ms) | |
1207 | delay_jiffies = | |
1208 | msecs_to_jiffies(muic_pdata->detcable_delay_ms); | |
1209 | else | |
1210 | delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); | |
1211 | } else { | |
cceb433a KK |
1212 | info->path_usb = MAX77693_CONTROL1_SW_USB; |
1213 | info->path_uart = MAX77693_CONTROL1_SW_UART; | |
190d7cfc CC |
1214 | delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); |
1215 | } | |
2b75799f | 1216 | |
6865f2ef MS |
1217 | /* Set initial path for UART when JIG is connected to get serial logs */ |
1218 | ret = regmap_bulk_read(info->max77693->regmap_muic, | |
1219 | MAX77693_MUIC_REG_STATUS1, info->status, 2); | |
1220 | if (ret) { | |
1221 | dev_err(info->dev, "failed to read MUIC register\n"); | |
1222 | return ret; | |
1223 | } | |
1224 | cable_type = max77693_muic_get_cable_type(info, | |
1225 | MAX77693_CABLE_GROUP_ADC, &attached); | |
1226 | if (attached && (cable_type == MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON || | |
1227 | cable_type == MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF)) | |
1228 | max77693_muic_set_path(info, info->path_uart, true); | |
2b75799f | 1229 | |
db1b9037 | 1230 | /* Check revision number of MUIC device*/ |
d0540f91 | 1231 | ret = regmap_read(info->max77693->regmap_muic, |
db1b9037 CC |
1232 | MAX77693_MUIC_REG_ID, &id); |
1233 | if (ret < 0) { | |
1234 | dev_err(&pdev->dev, "failed to read revision number\n"); | |
d7155231 | 1235 | return ret; |
db1b9037 CC |
1236 | } |
1237 | dev_info(info->dev, "device ID : 0x%x\n", id); | |
1238 | ||
1239 | /* Set ADC debounce time */ | |
1240 | max77693_muic_set_debounce_time(info, ADC_DEBOUNCE_TIME_25MS); | |
1241 | ||
297620fd CC |
1242 | /* |
1243 | * Detect accessory after completing the initialization of platform | |
1244 | * | |
1245 | * - Use delayed workqueue to detect cable state and then | |
1246 | * notify cable state to notifiee/platform through uevent. | |
1247 | * After completing the booting of platform, the extcon provider | |
1248 | * driver should notify cable state to upper layer. | |
1249 | */ | |
1250 | INIT_DELAYED_WORK(&info->wq_detcable, max77693_muic_detect_cable_wq); | |
b8629411 KK |
1251 | queue_delayed_work(system_power_efficient_wq, &info->wq_detcable, |
1252 | delay_jiffies); | |
db1b9037 CC |
1253 | |
1254 | return ret; | |
db1b9037 CC |
1255 | } |
1256 | ||
93ed0327 | 1257 | static int max77693_muic_remove(struct platform_device *pdev) |
db1b9037 CC |
1258 | { |
1259 | struct max77693_muic_info *info = platform_get_drvdata(pdev); | |
db1b9037 | 1260 | |
db1b9037 | 1261 | cancel_work_sync(&info->irq_work); |
39bf369e | 1262 | input_unregister_device(info->dock); |
db1b9037 CC |
1263 | |
1264 | return 0; | |
1265 | } | |
1266 | ||
1267 | static struct platform_driver max77693_muic_driver = { | |
1268 | .driver = { | |
1269 | .name = DEV_NAME, | |
db1b9037 CC |
1270 | }, |
1271 | .probe = max77693_muic_probe, | |
5f7e2228 | 1272 | .remove = max77693_muic_remove, |
db1b9037 CC |
1273 | }; |
1274 | ||
1275 | module_platform_driver(max77693_muic_driver); | |
1276 | ||
1277 | MODULE_DESCRIPTION("Maxim MAX77693 Extcon driver"); | |
1278 | MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>"); | |
1279 | MODULE_LICENSE("GPL"); | |
1280 | MODULE_ALIAS("platform:extcon-max77693"); |