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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/bitfield.h>
10#include <linux/kernel.h>
11#include <linux/types.h>
12#include <linux/usb/typec.h>
13
14/* USB PD Messages */
15enum pd_ctrl_msg_type {
16 /* 0 Reserved */
17 PD_CTRL_GOOD_CRC = 1,
18 PD_CTRL_GOTO_MIN = 2,
19 PD_CTRL_ACCEPT = 3,
20 PD_CTRL_REJECT = 4,
21 PD_CTRL_PING = 5,
22 PD_CTRL_PS_RDY = 6,
23 PD_CTRL_GET_SOURCE_CAP = 7,
24 PD_CTRL_GET_SINK_CAP = 8,
25 PD_CTRL_DR_SWAP = 9,
26 PD_CTRL_PR_SWAP = 10,
27 PD_CTRL_VCONN_SWAP = 11,
28 PD_CTRL_WAIT = 12,
29 PD_CTRL_SOFT_RESET = 13,
30 /* 14-15 Reserved */
31 PD_CTRL_NOT_SUPP = 16,
32 PD_CTRL_GET_SOURCE_CAP_EXT = 17,
33 PD_CTRL_GET_STATUS = 18,
34 PD_CTRL_FR_SWAP = 19,
35 PD_CTRL_GET_PPS_STATUS = 20,
36 PD_CTRL_GET_COUNTRY_CODES = 21,
37 /* 22-23 Reserved */
38 PD_CTRL_GET_REVISION = 24,
39 /* 25-31 Reserved */
40};
41
42enum pd_data_msg_type {
43 /* 0 Reserved */
44 PD_DATA_SOURCE_CAP = 1,
45 PD_DATA_REQUEST = 2,
46 PD_DATA_BIST = 3,
47 PD_DATA_SINK_CAP = 4,
48 PD_DATA_BATT_STATUS = 5,
49 PD_DATA_ALERT = 6,
50 PD_DATA_GET_COUNTRY_INFO = 7,
51 PD_DATA_ENTER_USB = 8,
52 /* 9-11 Reserved */
53 PD_DATA_REVISION = 12,
54 /* 13-14 Reserved */
55 PD_DATA_VENDOR_DEF = 15,
56 /* 16-31 Reserved */
57};
58
59enum pd_ext_msg_type {
60 /* 0 Reserved */
61 PD_EXT_SOURCE_CAP_EXT = 1,
62 PD_EXT_STATUS = 2,
63 PD_EXT_GET_BATT_CAP = 3,
64 PD_EXT_GET_BATT_STATUS = 4,
65 PD_EXT_BATT_CAP = 5,
66 PD_EXT_GET_MANUFACTURER_INFO = 6,
67 PD_EXT_MANUFACTURER_INFO = 7,
68 PD_EXT_SECURITY_REQUEST = 8,
69 PD_EXT_SECURITY_RESPONSE = 9,
70 PD_EXT_FW_UPDATE_REQUEST = 10,
71 PD_EXT_FW_UPDATE_RESPONSE = 11,
72 PD_EXT_PPS_STATUS = 12,
73 PD_EXT_COUNTRY_INFO = 13,
74 PD_EXT_COUNTRY_CODES = 14,
75 /* 15-31 Reserved */
76};
77
78#define PD_REV10 0x0
79#define PD_REV20 0x1
80#define PD_REV30 0x2
81#define PD_MAX_REV PD_REV30
82
83#define PD_HEADER_EXT_HDR BIT(15)
84#define PD_HEADER_CNT_SHIFT 12
85#define PD_HEADER_CNT_MASK 0x7
86#define PD_HEADER_ID_SHIFT 9
87#define PD_HEADER_ID_MASK 0x7
88#define PD_HEADER_PWR_ROLE BIT(8)
89#define PD_HEADER_REV_SHIFT 6
90#define PD_HEADER_REV_MASK 0x3
91#define PD_HEADER_DATA_ROLE BIT(5)
92#define PD_HEADER_TYPE_SHIFT 0
93#define PD_HEADER_TYPE_MASK 0x1f
94
95#define PD_HEADER(type, pwr, data, rev, id, cnt, ext_hdr) \
96 ((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \
97 ((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \
98 ((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \
99 (rev << PD_HEADER_REV_SHIFT) | \
100 (((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \
101 (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \
102 ((ext_hdr) ? PD_HEADER_EXT_HDR : 0))
103
104#define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \
105 cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0)))
106
107static inline unsigned int pd_header_cnt(u16 header)
108{
109 return (header >> PD_HEADER_CNT_SHIFT) & PD_HEADER_CNT_MASK;
110}
111
112static inline unsigned int pd_header_cnt_le(__le16 header)
113{
114 return pd_header_cnt(le16_to_cpu(header));
115}
116
117static inline unsigned int pd_header_type(u16 header)
118{
119 return (header >> PD_HEADER_TYPE_SHIFT) & PD_HEADER_TYPE_MASK;
120}
121
122static inline unsigned int pd_header_type_le(__le16 header)
123{
124 return pd_header_type(le16_to_cpu(header));
125}
126
127static inline unsigned int pd_header_msgid(u16 header)
128{
129 return (header >> PD_HEADER_ID_SHIFT) & PD_HEADER_ID_MASK;
130}
131
132static inline unsigned int pd_header_msgid_le(__le16 header)
133{
134 return pd_header_msgid(le16_to_cpu(header));
135}
136
137static inline unsigned int pd_header_rev(u16 header)
138{
139 return (header >> PD_HEADER_REV_SHIFT) & PD_HEADER_REV_MASK;
140}
141
142static inline unsigned int pd_header_rev_le(__le16 header)
143{
144 return pd_header_rev(le16_to_cpu(header));
145}
146
147#define PD_EXT_HDR_CHUNKED BIT(15)
148#define PD_EXT_HDR_CHUNK_NUM_SHIFT 11
149#define PD_EXT_HDR_CHUNK_NUM_MASK 0xf
150#define PD_EXT_HDR_REQ_CHUNK BIT(10)
151#define PD_EXT_HDR_DATA_SIZE_SHIFT 0
152#define PD_EXT_HDR_DATA_SIZE_MASK 0x1ff
153
154#define PD_EXT_HDR(data_size, req_chunk, chunk_num, chunked) \
155 ((((data_size) & PD_EXT_HDR_DATA_SIZE_MASK) << PD_EXT_HDR_DATA_SIZE_SHIFT) | \
156 ((req_chunk) ? PD_EXT_HDR_REQ_CHUNK : 0) | \
157 (((chunk_num) & PD_EXT_HDR_CHUNK_NUM_MASK) << PD_EXT_HDR_CHUNK_NUM_SHIFT) | \
158 ((chunked) ? PD_EXT_HDR_CHUNKED : 0))
159
160#define PD_EXT_HDR_LE(data_size, req_chunk, chunk_num, chunked) \
161 cpu_to_le16(PD_EXT_HDR((data_size), (req_chunk), (chunk_num), (chunked)))
162
163static inline unsigned int pd_ext_header_chunk_num(u16 ext_header)
164{
165 return (ext_header >> PD_EXT_HDR_CHUNK_NUM_SHIFT) &
166 PD_EXT_HDR_CHUNK_NUM_MASK;
167}
168
169static inline unsigned int pd_ext_header_data_size(u16 ext_header)
170{
171 return (ext_header >> PD_EXT_HDR_DATA_SIZE_SHIFT) &
172 PD_EXT_HDR_DATA_SIZE_MASK;
173}
174
175static inline unsigned int pd_ext_header_data_size_le(__le16 ext_header)
176{
177 return pd_ext_header_data_size(le16_to_cpu(ext_header));
178}
179
180#define PD_MAX_PAYLOAD 7
181#define PD_EXT_MAX_CHUNK_DATA 26
182
183/**
184 * struct pd_chunked_ext_message_data - PD chunked extended message data as
185 * seen on wire
186 * @header: PD extended message header
187 * @data: PD extended message data
188 */
189struct pd_chunked_ext_message_data {
190 __le16 header;
191 u8 data[PD_EXT_MAX_CHUNK_DATA];
192} __packed;
193
194/**
195 * struct pd_message - PD message as seen on wire
196 * @header: PD message header
197 * @payload: PD message payload
198 * @ext_msg: PD message chunked extended message data
199 */
200struct pd_message {
201 __le16 header;
202 union {
203 __le32 payload[PD_MAX_PAYLOAD];
204 struct pd_chunked_ext_message_data ext_msg;
205 };
206} __packed;
207
208/* PDO: Power Data Object */
209#define PDO_MAX_OBJECTS 7
210
211enum pd_pdo_type {
212 PDO_TYPE_FIXED = 0,
213 PDO_TYPE_BATT = 1,
214 PDO_TYPE_VAR = 2,
215 PDO_TYPE_APDO = 3,
216};
217
218#define PDO_TYPE_SHIFT 30
219#define PDO_TYPE_MASK 0x3
220
221#define PDO_TYPE(t) ((t) << PDO_TYPE_SHIFT)
222
223#define PDO_VOLT_MASK 0x3ff
224#define PDO_CURR_MASK 0x3ff
225#define PDO_PWR_MASK 0x3ff
226
227#define PDO_FIXED_DUAL_ROLE BIT(29) /* Power role swap supported */
228#define PDO_FIXED_SUSPEND BIT(28) /* USB Suspend supported (Source) */
229#define PDO_FIXED_HIGHER_CAP BIT(28) /* Requires more than vSafe5V (Sink) */
230#define PDO_FIXED_EXTPOWER BIT(27) /* Externally powered */
231#define PDO_FIXED_USB_COMM BIT(26) /* USB communications capable */
232#define PDO_FIXED_DATA_SWAP BIT(25) /* Data role swap supported */
233#define PDO_FIXED_UNCHUNK_EXT BIT(24) /* Unchunked Extended Message supported (Source) */
234#define PDO_FIXED_FRS_CURR_MASK (BIT(24) | BIT(23)) /* FR_Swap Current (Sink) */
235#define PDO_FIXED_FRS_CURR_SHIFT 23
236#define PDO_FIXED_PEAK_CURR_SHIFT 20
237#define PDO_FIXED_VOLT_SHIFT 10 /* 50mV units */
238#define PDO_FIXED_CURR_SHIFT 0 /* 10mA units */
239
240#define PDO_FIXED_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_FIXED_VOLT_SHIFT)
241#define PDO_FIXED_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_FIXED_CURR_SHIFT)
242
243#define PDO_FIXED(mv, ma, flags) \
244 (PDO_TYPE(PDO_TYPE_FIXED) | (flags) | \
245 PDO_FIXED_VOLT(mv) | PDO_FIXED_CURR(ma))
246
247#define VSAFE5V 5000 /* mv units */
248
249#define PDO_BATT_MAX_VOLT_SHIFT 20 /* 50mV units */
250#define PDO_BATT_MIN_VOLT_SHIFT 10 /* 50mV units */
251#define PDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */
252
253#define PDO_BATT_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MIN_VOLT_SHIFT)
254#define PDO_BATT_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MAX_VOLT_SHIFT)
255#define PDO_BATT_MAX_POWER(mw) ((((mw) / 250) & PDO_PWR_MASK) << PDO_BATT_MAX_PWR_SHIFT)
256
257#define PDO_BATT(min_mv, max_mv, max_mw) \
258 (PDO_TYPE(PDO_TYPE_BATT) | PDO_BATT_MIN_VOLT(min_mv) | \
259 PDO_BATT_MAX_VOLT(max_mv) | PDO_BATT_MAX_POWER(max_mw))
260
261#define PDO_VAR_MAX_VOLT_SHIFT 20 /* 50mV units */
262#define PDO_VAR_MIN_VOLT_SHIFT 10 /* 50mV units */
263#define PDO_VAR_MAX_CURR_SHIFT 0 /* 10mA units */
264
265#define PDO_VAR_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MIN_VOLT_SHIFT)
266#define PDO_VAR_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MAX_VOLT_SHIFT)
267#define PDO_VAR_MAX_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_VAR_MAX_CURR_SHIFT)
268
269#define PDO_VAR(min_mv, max_mv, max_ma) \
270 (PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \
271 PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
272
273enum pd_apdo_type {
274 APDO_TYPE_PPS = 0,
275 APDO_TYPE_EPR_AVS = 1,
276 APDO_TYPE_SPR_AVS = 2,
277};
278
279#define PDO_APDO_TYPE_SHIFT 28
280#define PDO_APDO_TYPE_MASK 0x3
281
282#define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT)
283
284#define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */
285#define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */
286#define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */
287
288#define PDO_PPS_APDO_VOLT_MASK 0xff
289#define PDO_PPS_APDO_CURR_MASK 0x7f
290
291#define PDO_PPS_APDO_MIN_VOLT(mv) \
292 ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT)
293#define PDO_PPS_APDO_MAX_VOLT(mv) \
294 ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT)
295#define PDO_PPS_APDO_MAX_CURR(ma) \
296 ((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT)
297
298#define PDO_PPS_APDO(min_mv, max_mv, max_ma) \
299 (PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \
300 PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \
301 PDO_PPS_APDO_MAX_CURR(max_ma))
302
303/*
304 * Applicable only to EPR AVS APDO source cap as per
305 * Table 6.15 EPR Adjustable Voltage Supply APDO – Source
306 */
307#define PDO_EPR_AVS_APDO_PEAK_CURRENT GENMASK(27, 26)
308
309/*
310 * Applicable to both EPR AVS APDO source and sink cap as per
311 * Table 6.15 EPR Adjustable Voltage Supply APDO – Source
312 * Table 6.22 EPR Adjustable Voltage Supply APDO – Sink
313 */
314#define PDO_EPR_AVS_APDO_MAX_VOLT GENMASK(25, 17) /* 100mV unit */
315#define PDO_EPR_AVS_APDO_MIN_VOLT GENMASK(15, 8) /* 100mV unit */
316#define PDO_EPR_AVS_APDO_PDP GENMASK(7, 0) /* 1W unit */
317
318/*
319 * Applicable only SPR AVS APDO source cap as per
320 * Table 6.14 SPR Adjustable Voltage Supply APDO – Source
321 */
322#define PDO_SPR_AVS_APDO_PEAK_CURRENT GENMASK(27, 26)
323
324/*
325 * Applicable to both SPR AVS APDO source and sink cap as per
326 * Table 6.14 SPR Adjustable Voltage Supply APDO – Source
327 * Table 6.21 SPR Adjustable Voltage Supply APDO – Sink
328 */
329#define PDO_SPR_AVS_APDO_9V_TO_15V_MAX_CURR GENMASK(19, 10) /* 10mA unit */
330#define PDO_SPR_AVS_APDO_15V_TO_20V_MAX_CURR GENMASK(9, 0) /* 10mA unit */
331
332static inline enum pd_pdo_type pdo_type(u32 pdo)
333{
334 return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK;
335}
336
337static inline unsigned int pdo_fixed_voltage(u32 pdo)
338{
339 return ((pdo >> PDO_FIXED_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
340}
341
342static inline unsigned int pdo_min_voltage(u32 pdo)
343{
344 return ((pdo >> PDO_VAR_MIN_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
345}
346
347static inline unsigned int pdo_max_voltage(u32 pdo)
348{
349 return ((pdo >> PDO_VAR_MAX_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
350}
351
352static inline unsigned int pdo_max_current(u32 pdo)
353{
354 return ((pdo >> PDO_VAR_MAX_CURR_SHIFT) & PDO_CURR_MASK) * 10;
355}
356
357static inline unsigned int pdo_max_power(u32 pdo)
358{
359 return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250;
360}
361
362static inline enum pd_apdo_type pdo_apdo_type(u32 pdo)
363{
364 return (pdo >> PDO_APDO_TYPE_SHIFT) & PDO_APDO_TYPE_MASK;
365}
366
367static inline unsigned int pdo_pps_apdo_min_voltage(u32 pdo)
368{
369 return ((pdo >> PDO_PPS_APDO_MIN_VOLT_SHIFT) &
370 PDO_PPS_APDO_VOLT_MASK) * 100;
371}
372
373static inline unsigned int pdo_pps_apdo_max_voltage(u32 pdo)
374{
375 return ((pdo >> PDO_PPS_APDO_MAX_VOLT_SHIFT) &
376 PDO_PPS_APDO_VOLT_MASK) * 100;
377}
378
379static inline unsigned int pdo_pps_apdo_max_current(u32 pdo)
380{
381 return ((pdo >> PDO_PPS_APDO_MAX_CURR_SHIFT) &
382 PDO_PPS_APDO_CURR_MASK) * 50;
383}
384
385static inline unsigned int pdo_epr_avs_apdo_src_peak_current(u32 pdo)
386{
387 return FIELD_GET(PDO_EPR_AVS_APDO_PEAK_CURRENT, pdo);
388}
389
390static inline unsigned int pdo_epr_avs_apdo_min_voltage_mv(u32 pdo)
391{
392 return FIELD_GET(PDO_EPR_AVS_APDO_MIN_VOLT, pdo) * 100;
393}
394
395static inline unsigned int pdo_epr_avs_apdo_max_voltage_mv(u32 pdo)
396{
397 return FIELD_GET(PDO_EPR_AVS_APDO_MIN_VOLT, pdo) * 100;
398}
399
400static inline unsigned int pdo_epr_avs_apdo_pdp_w(u32 pdo)
401{
402 return FIELD_GET(PDO_EPR_AVS_APDO_PDP, pdo);
403}
404
405static inline unsigned int pdo_spr_avs_apdo_src_peak_current(u32 pdo)
406{
407 return FIELD_GET(PDO_SPR_AVS_APDO_PEAK_CURRENT, pdo);
408}
409
410static inline unsigned int pdo_spr_avs_apdo_9v_to_15v_max_current_ma(u32 pdo)
411{
412 return FIELD_GET(PDO_SPR_AVS_APDO_9V_TO_15V_MAX_CURR, pdo) * 10;
413}
414
415static inline unsigned int pdo_spr_avs_apdo_15v_to_20v_max_current_ma(u32 pdo)
416{
417 return FIELD_GET(PDO_SPR_AVS_APDO_15V_TO_20V_MAX_CURR, pdo) * 10;
418}
419
420/* RDO: Request Data Object */
421#define RDO_OBJ_POS_SHIFT 28
422#define RDO_OBJ_POS_MASK 0x7
423#define RDO_GIVE_BACK BIT(27) /* Supports reduced operating current */
424#define RDO_CAP_MISMATCH BIT(26) /* Not satisfied by source caps */
425#define RDO_USB_COMM BIT(25) /* USB communications capable */
426#define RDO_NO_SUSPEND BIT(24) /* USB Suspend not supported */
427
428#define RDO_PWR_MASK 0x3ff
429#define RDO_CURR_MASK 0x3ff
430
431#define RDO_FIXED_OP_CURR_SHIFT 10
432#define RDO_FIXED_MAX_CURR_SHIFT 0
433
434#define RDO_OBJ(idx) (((idx) & RDO_OBJ_POS_MASK) << RDO_OBJ_POS_SHIFT)
435
436#define PDO_FIXED_OP_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_OP_CURR_SHIFT)
437#define PDO_FIXED_MAX_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_MAX_CURR_SHIFT)
438
439#define RDO_FIXED(idx, op_ma, max_ma, flags) \
440 (RDO_OBJ(idx) | (flags) | \
441 PDO_FIXED_OP_CURR(op_ma) | PDO_FIXED_MAX_CURR(max_ma))
442
443#define RDO_BATT_OP_PWR_SHIFT 10 /* 250mW units */
444#define RDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */
445
446#define RDO_BATT_OP_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_OP_PWR_SHIFT)
447#define RDO_BATT_MAX_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_MAX_PWR_SHIFT)
448
449#define RDO_BATT(idx, op_mw, max_mw, flags) \
450 (RDO_OBJ(idx) | (flags) | \
451 RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw))
452
453#define RDO_PROG_VOLT_MASK 0x7ff
454#define RDO_PROG_CURR_MASK 0x7f
455
456#define RDO_PROG_VOLT_SHIFT 9
457#define RDO_PROG_CURR_SHIFT 0
458
459#define RDO_PROG_VOLT_MV_STEP 20
460#define RDO_PROG_CURR_MA_STEP 50
461
462#define PDO_PROG_OUT_VOLT(mv) \
463 ((((mv) / RDO_PROG_VOLT_MV_STEP) & RDO_PROG_VOLT_MASK) << RDO_PROG_VOLT_SHIFT)
464#define PDO_PROG_OP_CURR(ma) \
465 ((((ma) / RDO_PROG_CURR_MA_STEP) & RDO_PROG_CURR_MASK) << RDO_PROG_CURR_SHIFT)
466
467#define RDO_PROG(idx, out_mv, op_ma, flags) \
468 (RDO_OBJ(idx) | (flags) | \
469 PDO_PROG_OUT_VOLT(out_mv) | PDO_PROG_OP_CURR(op_ma))
470
471static inline unsigned int rdo_index(u32 rdo)
472{
473 return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK;
474}
475
476static inline unsigned int rdo_op_current(u32 rdo)
477{
478 return ((rdo >> RDO_FIXED_OP_CURR_SHIFT) & RDO_CURR_MASK) * 10;
479}
480
481static inline unsigned int rdo_max_current(u32 rdo)
482{
483 return ((rdo >> RDO_FIXED_MAX_CURR_SHIFT) &
484 RDO_CURR_MASK) * 10;
485}
486
487static inline unsigned int rdo_op_power(u32 rdo)
488{
489 return ((rdo >> RDO_BATT_OP_PWR_SHIFT) & RDO_PWR_MASK) * 250;
490}
491
492static inline unsigned int rdo_max_power(u32 rdo)
493{
494 return ((rdo >> RDO_BATT_MAX_PWR_SHIFT) & RDO_PWR_MASK) * 250;
495}
496
497/* Enter_USB Data Object */
498#define EUDO_USB_MODE_MASK GENMASK(30, 28)
499#define EUDO_USB_MODE_SHIFT 28
500#define EUDO_USB_MODE_USB2 0
501#define EUDO_USB_MODE_USB3 1
502#define EUDO_USB_MODE_USB4 2
503#define EUDO_USB4_DRD BIT(26)
504#define EUDO_USB3_DRD BIT(25)
505#define EUDO_CABLE_SPEED_MASK GENMASK(23, 21)
506#define EUDO_CABLE_SPEED_SHIFT 21
507#define EUDO_CABLE_SPEED_USB2 0
508#define EUDO_CABLE_SPEED_USB3_GEN1 1
509#define EUDO_CABLE_SPEED_USB4_GEN2 2
510#define EUDO_CABLE_SPEED_USB4_GEN3 3
511#define EUDO_CABLE_TYPE_MASK GENMASK(20, 19)
512#define EUDO_CABLE_TYPE_SHIFT 19
513#define EUDO_CABLE_TYPE_PASSIVE 0
514#define EUDO_CABLE_TYPE_RE_TIMER 1
515#define EUDO_CABLE_TYPE_RE_DRIVER 2
516#define EUDO_CABLE_TYPE_OPTICAL 3
517#define EUDO_CABLE_CURRENT_MASK GENMASK(18, 17)
518#define EUDO_CABLE_CURRENT_SHIFT 17
519#define EUDO_CABLE_CURRENT_NOTSUPP 0
520#define EUDO_CABLE_CURRENT_3A 2
521#define EUDO_CABLE_CURRENT_5A 3
522#define EUDO_PCIE_SUPPORT BIT(16)
523#define EUDO_DP_SUPPORT BIT(15)
524#define EUDO_TBT_SUPPORT BIT(14)
525#define EUDO_HOST_PRESENT BIT(13)
526
527/*
528 * Request Message Data Object (PD Revision 3.1+ only)
529 * --------
530 * <31:28> :: Revision Major
531 * <27:24> :: Revision Minor
532 * <23:20> :: Version Major
533 * <19:16> :: Version Minor
534 * <15:0> :: Reserved, Shall be set to zero
535 */
536
537#define RMDO(rev_maj, rev_min, ver_maj, ver_min) \
538 (((rev_maj) & 0xf) << 28 | ((rev_min) & 0xf) << 24 | \
539 ((ver_maj) & 0xf) << 20 | ((ver_min) & 0xf) << 16)
540
541/* USB PD timers and counters */
542#define PD_T_NO_RESPONSE 5000 /* 4.5 - 5.5 seconds */
543#define PD_T_DB_DETECT 10000 /* 10 - 15 seconds */
544#define PD_T_SEND_SOURCE_CAP 150 /* 100 - 200 ms */
545#define PD_T_SENDER_RESPONSE 60 /* 24 - 30 ms, relaxed */
546#define PD_T_RECEIVER_RESPONSE 15 /* 15ms max */
547#define PD_T_SOURCE_ACTIVITY 45
548#define PD_T_SINK_ACTIVITY 135
549#define PD_T_SINK_WAIT_CAP 310 /* 310 - 620 ms */
550#define PD_T_PS_TRANSITION 500
551#define PD_T_SRC_TRANSITION 35
552#define PD_T_DRP_SNK 40
553#define PD_T_DRP_SRC 30
554#define PD_T_PS_SOURCE_OFF 920
555#define PD_T_PS_SOURCE_ON 480
556#define PD_T_PS_SOURCE_ON_PRS 450 /* 390 - 480ms */
557#define PD_T_PS_HARD_RESET 30
558#define PD_T_SRC_RECOVER 760
559#define PD_T_SRC_RECOVER_MAX 1000
560#define PD_T_SRC_TURN_ON 275
561#define PD_T_SAFE_0V 650
562#define PD_T_VCONN_SOURCE_ON 100
563#define PD_T_SINK_REQUEST 100 /* 100 ms minimum */
564#define PD_T_ERROR_RECOVERY 100 /* minimum 25 is insufficient */
565#define PD_T_SRCSWAPSTDBY 625 /* Maximum of 650ms */
566#define PD_T_NEWSRC 250 /* Maximum of 275ms */
567#define PD_T_SWAP_SRC_START 20 /* Minimum of 20ms */
568#define PD_T_BIST_CONT_MODE 50 /* 30 - 60 ms */
569#define PD_T_SINK_TX 16 /* 16 - 20 ms */
570#define PD_T_CHUNK_NOT_SUPP 42 /* 40 - 50 ms */
571#define PD_T_VCONN_STABLE 50
572
573#define PD_T_DRP_TRY 100 /* 75 - 150 ms */
574#define PD_T_DRP_TRYWAIT 600 /* 400 - 800 ms */
575
576#define PD_T_CC_DEBOUNCE 200 /* 100 - 200 ms */
577#define PD_T_PD_DEBOUNCE 20 /* 10 - 20 ms */
578#define PD_T_TRY_CC_DEBOUNCE 15 /* 10 - 20 ms */
579
580#define PD_N_CAPS_COUNT (PD_T_NO_RESPONSE / PD_T_SEND_SOURCE_CAP)
581#define PD_N_HARD_RESET_COUNT 2
582
583#define PD_P_SNK_STDBY_MW 2500 /* 2500 mW */
584
585#if IS_ENABLED(CONFIG_TYPEC)
586
587struct usb_power_delivery;
588
589/**
590 * usb_power_delivery_desc - USB Power Delivery Descriptor
591 * @revision: USB Power Delivery Specification Revision
592 * @version: USB Power Delivery Specicication Version - optional
593 */
594struct usb_power_delivery_desc {
595 u16 revision;
596 u16 version;
597};
598
599/**
600 * usb_power_delivery_capabilities_desc - Description of USB Power Delivery Capabilities Message
601 * @pdo: The Power Data Objects in the Capability Message
602 * @role: Power role of the capabilities
603 */
604struct usb_power_delivery_capabilities_desc {
605 u32 pdo[PDO_MAX_OBJECTS];
606 enum typec_role role;
607};
608
609struct usb_power_delivery_capabilities *
610usb_power_delivery_register_capabilities(struct usb_power_delivery *pd,
611 struct usb_power_delivery_capabilities_desc *desc);
612void usb_power_delivery_unregister_capabilities(struct usb_power_delivery_capabilities *cap);
613
614struct usb_power_delivery *usb_power_delivery_register(struct device *parent,
615 struct usb_power_delivery_desc *desc);
616void usb_power_delivery_unregister(struct usb_power_delivery *pd);
617
618int usb_power_delivery_link_device(struct usb_power_delivery *pd, struct device *dev);
619void usb_power_delivery_unlink_device(struct usb_power_delivery *pd, struct device *dev);
620
621#endif /* CONFIG_TYPEC */
622
623#endif /* __LINUX_USB_PD_H */
624

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