1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright 2015-2017 Google, Inc
4 */
5
6#ifndef __LINUX_USB_PD_H
7#define __LINUX_USB_PD_H
8
9#include <linux/kernel.h>
10#include <linux/types.h>
11#include <linux/usb/typec.h>
12
13/* USB PD Messages */
14enum pd_ctrl_msg_type {
15 /* 0 Reserved */
16 PD_CTRL_GOOD_CRC = 1,
17 PD_CTRL_GOTO_MIN = 2,
18 PD_CTRL_ACCEPT = 3,
19 PD_CTRL_REJECT = 4,
20 PD_CTRL_PING = 5,
21 PD_CTRL_PS_RDY = 6,
22 PD_CTRL_GET_SOURCE_CAP = 7,
23 PD_CTRL_GET_SINK_CAP = 8,
24 PD_CTRL_DR_SWAP = 9,
25 PD_CTRL_PR_SWAP = 10,
26 PD_CTRL_VCONN_SWAP = 11,
27 PD_CTRL_WAIT = 12,
28 PD_CTRL_SOFT_RESET = 13,
29 /* 14-15 Reserved */
30 PD_CTRL_NOT_SUPP = 16,
31 PD_CTRL_GET_SOURCE_CAP_EXT = 17,
32 PD_CTRL_GET_STATUS = 18,
33 PD_CTRL_FR_SWAP = 19,
34 PD_CTRL_GET_PPS_STATUS = 20,
35 PD_CTRL_GET_COUNTRY_CODES = 21,
36 /* 22-31 Reserved */
37};
38
39enum pd_data_msg_type {
40 /* 0 Reserved */
41 PD_DATA_SOURCE_CAP = 1,
42 PD_DATA_REQUEST = 2,
43 PD_DATA_BIST = 3,
44 PD_DATA_SINK_CAP = 4,
45 PD_DATA_BATT_STATUS = 5,
46 PD_DATA_ALERT = 6,
47 PD_DATA_GET_COUNTRY_INFO = 7,
48 PD_DATA_ENTER_USB = 8,
49 /* 9-14 Reserved */
50 PD_DATA_VENDOR_DEF = 15,
51 /* 16-31 Reserved */
52};
53
54enum pd_ext_msg_type {
55 /* 0 Reserved */
56 PD_EXT_SOURCE_CAP_EXT = 1,
57 PD_EXT_STATUS = 2,
58 PD_EXT_GET_BATT_CAP = 3,
59 PD_EXT_GET_BATT_STATUS = 4,
60 PD_EXT_BATT_CAP = 5,
61 PD_EXT_GET_MANUFACTURER_INFO = 6,
62 PD_EXT_MANUFACTURER_INFO = 7,
63 PD_EXT_SECURITY_REQUEST = 8,
64 PD_EXT_SECURITY_RESPONSE = 9,
65 PD_EXT_FW_UPDATE_REQUEST = 10,
66 PD_EXT_FW_UPDATE_RESPONSE = 11,
67 PD_EXT_PPS_STATUS = 12,
68 PD_EXT_COUNTRY_INFO = 13,
69 PD_EXT_COUNTRY_CODES = 14,
70 /* 15-31 Reserved */
71};
72
73#define PD_REV10 0x0
74#define PD_REV20 0x1
75#define PD_REV30 0x2
76#define PD_MAX_REV PD_REV30
77
78#define PD_HEADER_EXT_HDR BIT(15)
79#define PD_HEADER_CNT_SHIFT 12
80#define PD_HEADER_CNT_MASK 0x7
81#define PD_HEADER_ID_SHIFT 9
82#define PD_HEADER_ID_MASK 0x7
83#define PD_HEADER_PWR_ROLE BIT(8)
84#define PD_HEADER_REV_SHIFT 6
85#define PD_HEADER_REV_MASK 0x3
86#define PD_HEADER_DATA_ROLE BIT(5)
87#define PD_HEADER_TYPE_SHIFT 0
88#define PD_HEADER_TYPE_MASK 0x1f
89
90#define PD_HEADER(type, pwr, data, rev, id, cnt, ext_hdr) \
91 ((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \
92 ((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \
93 ((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \
94 (rev << PD_HEADER_REV_SHIFT) | \
95 (((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \
96 (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \
97 ((ext_hdr) ? PD_HEADER_EXT_HDR : 0))
98
99#define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \
100 cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0)))
101
102static inline unsigned int pd_header_cnt(u16 header)
103{
104 return (header >> PD_HEADER_CNT_SHIFT) & PD_HEADER_CNT_MASK;
105}
106
107static inline unsigned int pd_header_cnt_le(__le16 header)
108{
109 return pd_header_cnt(le16_to_cpu(header));
110}
111
112static inline unsigned int pd_header_type(u16 header)
113{
114 return (header >> PD_HEADER_TYPE_SHIFT) & PD_HEADER_TYPE_MASK;
115}
116
117static inline unsigned int pd_header_type_le(__le16 header)
118{
119 return pd_header_type(le16_to_cpu(header));
120}
121
122static inline unsigned int pd_header_msgid(u16 header)
123{
124 return (header >> PD_HEADER_ID_SHIFT) & PD_HEADER_ID_MASK;
125}
126
127static inline unsigned int pd_header_msgid_le(__le16 header)
128{
129 return pd_header_msgid(le16_to_cpu(header));
130}
131
132static inline unsigned int pd_header_rev(u16 header)
133{
134 return (header >> PD_HEADER_REV_SHIFT) & PD_HEADER_REV_MASK;
135}
136
137static inline unsigned int pd_header_rev_le(__le16 header)
138{
139 return pd_header_rev(le16_to_cpu(header));
140}
141
142#define PD_EXT_HDR_CHUNKED BIT(15)
143#define PD_EXT_HDR_CHUNK_NUM_SHIFT 11
144#define PD_EXT_HDR_CHUNK_NUM_MASK 0xf
145#define PD_EXT_HDR_REQ_CHUNK BIT(10)
146#define PD_EXT_HDR_DATA_SIZE_SHIFT 0
147#define PD_EXT_HDR_DATA_SIZE_MASK 0x1ff
148
149#define PD_EXT_HDR(data_size, req_chunk, chunk_num, chunked) \
150 ((((data_size) & PD_EXT_HDR_DATA_SIZE_MASK) << PD_EXT_HDR_DATA_SIZE_SHIFT) | \
151 ((req_chunk) ? PD_EXT_HDR_REQ_CHUNK : 0) | \
152 (((chunk_num) & PD_EXT_HDR_CHUNK_NUM_MASK) << PD_EXT_HDR_CHUNK_NUM_SHIFT) | \
153 ((chunked) ? PD_EXT_HDR_CHUNKED : 0))
154
155#define PD_EXT_HDR_LE(data_size, req_chunk, chunk_num, chunked) \
156 cpu_to_le16(PD_EXT_HDR((data_size), (req_chunk), (chunk_num), (chunked)))
157
158static inline unsigned int pd_ext_header_chunk_num(u16 ext_header)
159{
160 return (ext_header >> PD_EXT_HDR_CHUNK_NUM_SHIFT) &
161 PD_EXT_HDR_CHUNK_NUM_MASK;
162}
163
164static inline unsigned int pd_ext_header_data_size(u16 ext_header)
165{
166 return (ext_header >> PD_EXT_HDR_DATA_SIZE_SHIFT) &
167 PD_EXT_HDR_DATA_SIZE_MASK;
168}
169
170static inline unsigned int pd_ext_header_data_size_le(__le16 ext_header)
171{
172 return pd_ext_header_data_size(le16_to_cpu(ext_header));
173}
174
175#define PD_MAX_PAYLOAD 7
176#define PD_EXT_MAX_CHUNK_DATA 26
177
178/**
179 * struct pd_chunked_ext_message_data - PD chunked extended message data as
180 * seen on wire
181 * @header: PD extended message header
182 * @data: PD extended message data
183 */
184struct pd_chunked_ext_message_data {
185 __le16 header;
186 u8 data[PD_EXT_MAX_CHUNK_DATA];
187} __packed;
188
189/**
190 * struct pd_message - PD message as seen on wire
191 * @header: PD message header
192 * @payload: PD message payload
193 * @ext_msg: PD message chunked extended message data
194 */
195struct pd_message {
196 __le16 header;
197 union {
198 __le32 payload[PD_MAX_PAYLOAD];
199 struct pd_chunked_ext_message_data ext_msg;
200 };
201} __packed;
202
203/* PDO: Power Data Object */
204#define PDO_MAX_OBJECTS 7
205
206enum pd_pdo_type {
207 PDO_TYPE_FIXED = 0,
208 PDO_TYPE_BATT = 1,
209 PDO_TYPE_VAR = 2,
210 PDO_TYPE_APDO = 3,
211};
212
213#define PDO_TYPE_SHIFT 30
214#define PDO_TYPE_MASK 0x3
215
216#define PDO_TYPE(t) ((t) << PDO_TYPE_SHIFT)
217
218#define PDO_VOLT_MASK 0x3ff
219#define PDO_CURR_MASK 0x3ff
220#define PDO_PWR_MASK 0x3ff
221
222#define PDO_FIXED_DUAL_ROLE BIT(29) /* Power role swap supported */
223#define PDO_FIXED_SUSPEND BIT(28) /* USB Suspend supported (Source) */
224#define PDO_FIXED_HIGHER_CAP BIT(28) /* Requires more than vSafe5V (Sink) */
225#define PDO_FIXED_EXTPOWER BIT(27) /* Externally powered */
226#define PDO_FIXED_USB_COMM BIT(26) /* USB communications capable */
227#define PDO_FIXED_DATA_SWAP BIT(25) /* Data role swap supported */
228#define PDO_FIXED_UNCHUNK_EXT BIT(24) /* Unchunked Extended Message supported (Source) */
229#define PDO_FIXED_FRS_CURR_MASK (BIT(24) | BIT(23)) /* FR_Swap Current (Sink) */
230#define PDO_FIXED_FRS_CURR_SHIFT 23
231#define PDO_FIXED_PEAK_CURR_SHIFT 20
232#define PDO_FIXED_VOLT_SHIFT 10 /* 50mV units */
233#define PDO_FIXED_CURR_SHIFT 0 /* 10mA units */
234
235#define PDO_FIXED_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_FIXED_VOLT_SHIFT)
236#define PDO_FIXED_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_FIXED_CURR_SHIFT)
237
238#define PDO_FIXED(mv, ma, flags) \
239 (PDO_TYPE(PDO_TYPE_FIXED) | (flags) | \
240 PDO_FIXED_VOLT(mv) | PDO_FIXED_CURR(ma))
241
242#define VSAFE5V 5000 /* mv units */
243
244#define PDO_BATT_MAX_VOLT_SHIFT 20 /* 50mV units */
245#define PDO_BATT_MIN_VOLT_SHIFT 10 /* 50mV units */
246#define PDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */
247
248#define PDO_BATT_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MIN_VOLT_SHIFT)
249#define PDO_BATT_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MAX_VOLT_SHIFT)
250#define PDO_BATT_MAX_POWER(mw) ((((mw) / 250) & PDO_PWR_MASK) << PDO_BATT_MAX_PWR_SHIFT)
251
252#define PDO_BATT(min_mv, max_mv, max_mw) \
253 (PDO_TYPE(PDO_TYPE_BATT) | PDO_BATT_MIN_VOLT(min_mv) | \
254 PDO_BATT_MAX_VOLT(max_mv) | PDO_BATT_MAX_POWER(max_mw))
255
256#define PDO_VAR_MAX_VOLT_SHIFT 20 /* 50mV units */
257#define PDO_VAR_MIN_VOLT_SHIFT 10 /* 50mV units */
258#define PDO_VAR_MAX_CURR_SHIFT 0 /* 10mA units */
259
260#define PDO_VAR_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MIN_VOLT_SHIFT)
261#define PDO_VAR_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MAX_VOLT_SHIFT)
262#define PDO_VAR_MAX_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_VAR_MAX_CURR_SHIFT)
263
264#define PDO_VAR(min_mv, max_mv, max_ma) \
265 (PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \
266 PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
267
268enum pd_apdo_type {
269 APDO_TYPE_PPS = 0,
270};
271
272#define PDO_APDO_TYPE_SHIFT 28 /* Only valid value currently is 0x0 - PPS */
273#define PDO_APDO_TYPE_MASK 0x3
274
275#define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT)
276
277#define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */
278#define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */
279#define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */
280
281#define PDO_PPS_APDO_VOLT_MASK 0xff
282#define PDO_PPS_APDO_CURR_MASK 0x7f
283
284#define PDO_PPS_APDO_MIN_VOLT(mv) \
285 ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT)
286#define PDO_PPS_APDO_MAX_VOLT(mv) \
287 ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT)
288#define PDO_PPS_APDO_MAX_CURR(ma) \
289 ((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT)
290
291#define PDO_PPS_APDO(min_mv, max_mv, max_ma) \
292 (PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \
293 PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \
294 PDO_PPS_APDO_MAX_CURR(max_ma))
295
296static inline enum pd_pdo_type pdo_type(u32 pdo)
297{
298 return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK;
299}
300
301static inline unsigned int pdo_fixed_voltage(u32 pdo)
302{
303 return ((pdo >> PDO_FIXED_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
304}
305
306static inline unsigned int pdo_min_voltage(u32 pdo)
307{
308 return ((pdo >> PDO_VAR_MIN_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
309}
310
311static inline unsigned int pdo_max_voltage(u32 pdo)
312{
313 return ((pdo >> PDO_VAR_MAX_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
314}
315
316static inline unsigned int pdo_max_current(u32 pdo)
317{
318 return ((pdo >> PDO_VAR_MAX_CURR_SHIFT) & PDO_CURR_MASK) * 10;
319}
320
321static inline unsigned int pdo_max_power(u32 pdo)
322{
323 return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250;
324}
325
326static inline enum pd_apdo_type pdo_apdo_type(u32 pdo)
327{
328 return (pdo >> PDO_APDO_TYPE_SHIFT) & PDO_APDO_TYPE_MASK;
329}
330
331static inline unsigned int pdo_pps_apdo_min_voltage(u32 pdo)
332{
333 return ((pdo >> PDO_PPS_APDO_MIN_VOLT_SHIFT) &
334 PDO_PPS_APDO_VOLT_MASK) * 100;
335}
336
337static inline unsigned int pdo_pps_apdo_max_voltage(u32 pdo)
338{
339 return ((pdo >> PDO_PPS_APDO_MAX_VOLT_SHIFT) &
340 PDO_PPS_APDO_VOLT_MASK) * 100;
341}
342
343static inline unsigned int pdo_pps_apdo_max_current(u32 pdo)
344{
345 return ((pdo >> PDO_PPS_APDO_MAX_CURR_SHIFT) &
346 PDO_PPS_APDO_CURR_MASK) * 50;
347}
348
349/* RDO: Request Data Object */
350#define RDO_OBJ_POS_SHIFT 28
351#define RDO_OBJ_POS_MASK 0x7
352#define RDO_GIVE_BACK BIT(27) /* Supports reduced operating current */
353#define RDO_CAP_MISMATCH BIT(26) /* Not satisfied by source caps */
354#define RDO_USB_COMM BIT(25) /* USB communications capable */
355#define RDO_NO_SUSPEND BIT(24) /* USB Suspend not supported */
356
357#define RDO_PWR_MASK 0x3ff
358#define RDO_CURR_MASK 0x3ff
359
360#define RDO_FIXED_OP_CURR_SHIFT 10
361#define RDO_FIXED_MAX_CURR_SHIFT 0
362
363#define RDO_OBJ(idx) (((idx) & RDO_OBJ_POS_MASK) << RDO_OBJ_POS_SHIFT)
364
365#define PDO_FIXED_OP_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_OP_CURR_SHIFT)
366#define PDO_FIXED_MAX_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_MAX_CURR_SHIFT)
367
368#define RDO_FIXED(idx, op_ma, max_ma, flags) \
369 (RDO_OBJ(idx) | (flags) | \
370 PDO_FIXED_OP_CURR(op_ma) | PDO_FIXED_MAX_CURR(max_ma))
371
372#define RDO_BATT_OP_PWR_SHIFT 10 /* 250mW units */
373#define RDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */
374
375#define RDO_BATT_OP_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_OP_PWR_SHIFT)
376#define RDO_BATT_MAX_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_MAX_PWR_SHIFT)
377
378#define RDO_BATT(idx, op_mw, max_mw, flags) \
379 (RDO_OBJ(idx) | (flags) | \
380 RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw))
381
382#define RDO_PROG_VOLT_MASK 0x7ff
383#define RDO_PROG_CURR_MASK 0x7f
384
385#define RDO_PROG_VOLT_SHIFT 9
386#define RDO_PROG_CURR_SHIFT 0
387
388#define RDO_PROG_VOLT_MV_STEP 20
389#define RDO_PROG_CURR_MA_STEP 50
390
391#define PDO_PROG_OUT_VOLT(mv) \
392 ((((mv) / RDO_PROG_VOLT_MV_STEP) & RDO_PROG_VOLT_MASK) << RDO_PROG_VOLT_SHIFT)
393#define PDO_PROG_OP_CURR(ma) \
394 ((((ma) / RDO_PROG_CURR_MA_STEP) & RDO_PROG_CURR_MASK) << RDO_PROG_CURR_SHIFT)
395
396#define RDO_PROG(idx, out_mv, op_ma, flags) \
397 (RDO_OBJ(idx) | (flags) | \
398 PDO_PROG_OUT_VOLT(out_mv) | PDO_PROG_OP_CURR(op_ma))
399
400static inline unsigned int rdo_index(u32 rdo)
401{
402 return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK;
403}
404
405static inline unsigned int rdo_op_current(u32 rdo)
406{
407 return ((rdo >> RDO_FIXED_OP_CURR_SHIFT) & RDO_CURR_MASK) * 10;
408}
409
410static inline unsigned int rdo_max_current(u32 rdo)
411{
412 return ((rdo >> RDO_FIXED_MAX_CURR_SHIFT) &
413 RDO_CURR_MASK) * 10;
414}
415
416static inline unsigned int rdo_op_power(u32 rdo)
417{
418 return ((rdo >> RDO_BATT_OP_PWR_SHIFT) & RDO_PWR_MASK) * 250;
419}
420
421static inline unsigned int rdo_max_power(u32 rdo)
422{
423 return ((rdo >> RDO_BATT_MAX_PWR_SHIFT) & RDO_PWR_MASK) * 250;
424}
425
426/* Enter_USB Data Object */
427#define EUDO_USB_MODE_MASK GENMASK(30, 28)
428#define EUDO_USB_MODE_SHIFT 28
429#define EUDO_USB_MODE_USB2 0
430#define EUDO_USB_MODE_USB3 1
431#define EUDO_USB_MODE_USB4 2
432#define EUDO_USB4_DRD BIT(26)
433#define EUDO_USB3_DRD BIT(25)
434#define EUDO_CABLE_SPEED_MASK GENMASK(23, 21)
435#define EUDO_CABLE_SPEED_SHIFT 21
436#define EUDO_CABLE_SPEED_USB2 0
437#define EUDO_CABLE_SPEED_USB3_GEN1 1
438#define EUDO_CABLE_SPEED_USB4_GEN2 2
439#define EUDO_CABLE_SPEED_USB4_GEN3 3
440#define EUDO_CABLE_TYPE_MASK GENMASK(20, 19)
441#define EUDO_CABLE_TYPE_SHIFT 19
442#define EUDO_CABLE_TYPE_PASSIVE 0
443#define EUDO_CABLE_TYPE_RE_TIMER 1
444#define EUDO_CABLE_TYPE_RE_DRIVER 2
445#define EUDO_CABLE_TYPE_OPTICAL 3
446#define EUDO_CABLE_CURRENT_MASK GENMASK(18, 17)
447#define EUDO_CABLE_CURRENT_SHIFT 17
448#define EUDO_CABLE_CURRENT_NOTSUPP 0
449#define EUDO_CABLE_CURRENT_3A 2
450#define EUDO_CABLE_CURRENT_5A 3
451#define EUDO_PCIE_SUPPORT BIT(16)
452#define EUDO_DP_SUPPORT BIT(15)
453#define EUDO_TBT_SUPPORT BIT(14)
454#define EUDO_HOST_PRESENT BIT(13)
455
456/* USB PD timers and counters */
457#define PD_T_NO_RESPONSE 5000 /* 4.5 - 5.5 seconds */
458#define PD_T_DB_DETECT 10000 /* 10 - 15 seconds */
459#define PD_T_SEND_SOURCE_CAP 150 /* 100 - 200 ms */
460#define PD_T_SENDER_RESPONSE 60 /* 24 - 30 ms, relaxed */
461#define PD_T_RECEIVER_RESPONSE 15 /* 15ms max */
462#define PD_T_SOURCE_ACTIVITY 45
463#define PD_T_SINK_ACTIVITY 135
464#define PD_T_SINK_WAIT_CAP 310 /* 310 - 620 ms */
465#define PD_T_PS_TRANSITION 500
466#define PD_T_SRC_TRANSITION 35
467#define PD_T_DRP_SNK 40
468#define PD_T_DRP_SRC 30
469#define PD_T_PS_SOURCE_OFF 920
470#define PD_T_PS_SOURCE_ON 480
471#define PD_T_PS_SOURCE_ON_PRS 450 /* 390 - 480ms */
472#define PD_T_PS_HARD_RESET 30
473#define PD_T_SRC_RECOVER 760
474#define PD_T_SRC_RECOVER_MAX 1000
475#define PD_T_SRC_TURN_ON 275
476#define PD_T_SAFE_0V 650
477#define PD_T_VCONN_SOURCE_ON 100
478#define PD_T_SINK_REQUEST 100 /* 100 ms minimum */
479#define PD_T_ERROR_RECOVERY 100 /* minimum 25 is insufficient */
480#define PD_T_SRCSWAPSTDBY 625 /* Maximum of 650ms */
481#define PD_T_NEWSRC 250 /* Maximum of 275ms */
482#define PD_T_SWAP_SRC_START 20 /* Minimum of 20ms */
483#define PD_T_BIST_CONT_MODE 50 /* 30 - 60 ms */
484#define PD_T_SINK_TX 16 /* 16 - 20 ms */
485#define PD_T_CHUNK_NOT_SUPP 42 /* 40 - 50 ms */
486#define PD_T_VCONN_STABLE 50
487
488#define PD_T_DRP_TRY 100 /* 75 - 150 ms */
489#define PD_T_DRP_TRYWAIT 600 /* 400 - 800 ms */
490
491#define PD_T_CC_DEBOUNCE 200 /* 100 - 200 ms */
492#define PD_T_PD_DEBOUNCE 20 /* 10 - 20 ms */
493#define PD_T_TRY_CC_DEBOUNCE 15 /* 10 - 20 ms */
494
495#define PD_N_CAPS_COUNT (PD_T_NO_RESPONSE / PD_T_SEND_SOURCE_CAP)
496#define PD_N_HARD_RESET_COUNT 2
497
498#define PD_P_SNK_STDBY_MW 2500 /* 2500 mW */
499
500#if IS_ENABLED(CONFIG_TYPEC)
501
502struct usb_power_delivery;
503
504/**
505 * usb_power_delivery_desc - USB Power Delivery Descriptor
506 * @revision: USB Power Delivery Specification Revision
507 * @version: USB Power Delivery Specicication Version - optional
508 */
509struct usb_power_delivery_desc {
510 u16 revision;
511 u16 version;
512};
513
514/**
515 * usb_power_delivery_capabilities_desc - Description of USB Power Delivery Capabilities Message
516 * @pdo: The Power Data Objects in the Capability Message
517 * @role: Power role of the capabilities
518 */
519struct usb_power_delivery_capabilities_desc {
520 u32 pdo[PDO_MAX_OBJECTS];
521 enum typec_role role;
522};
523
524struct usb_power_delivery_capabilities *
525usb_power_delivery_register_capabilities(struct usb_power_delivery *pd,
526 struct usb_power_delivery_capabilities_desc *desc);
527void usb_power_delivery_unregister_capabilities(struct usb_power_delivery_capabilities *cap);
528
529struct usb_power_delivery *usb_power_delivery_register(struct device *parent,
530 struct usb_power_delivery_desc *desc);
531void usb_power_delivery_unregister(struct usb_power_delivery *pd);
532
533int usb_power_delivery_link_device(struct usb_power_delivery *pd, struct device *dev);
534void usb_power_delivery_unlink_device(struct usb_power_delivery *pd, struct device *dev);
535
536#endif /* CONFIG_TYPEC */
537
538#endif /* __LINUX_USB_PD_H */
539

source code of linux/include/linux/usb/pd.h