1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright 2015-2017 Google, Inc
4  */
5 
6 #ifndef __LINUX_USB_PD_VDO_H
7 #define __LINUX_USB_PD_VDO_H
8 
9 #include "pd.h"
10 
11 /*
12  * VDO : Vendor Defined Message Object
13  * VDM object is minimum of VDM header + 6 additional data objects.
14  */
15 
16 #define VDO_MAX_OBJECTS		6
17 #define VDO_MAX_SIZE		(VDO_MAX_OBJECTS + 1)
18 
19 /*
20  * VDM header
21  * ----------
22  * <31:16>  :: SVID
23  * <15>     :: VDM type ( 1b == structured, 0b == unstructured )
24  * <14:13>  :: Structured VDM version
25  * <12:11>  :: reserved
26  * <10:8>   :: object position (1-7 valid ... used for enter/exit mode only)
27  * <7:6>    :: command type (SVDM only?)
28  * <5>      :: reserved (SVDM), command type (UVDM)
29  * <4:0>    :: command
30  */
31 #define VDO(vid, type, ver, custom)			\
32 	(((vid) << 16) |				\
33 	 ((type) << 15) |				\
34 	 ((ver) << 13) |				\
35 	 ((custom) & 0x7FFF))
36 
37 #define VDO_SVDM_TYPE		(1 << 15)
38 #define VDO_SVDM_VERS(x)	((x) << 13)
39 #define VDO_OPOS(x)		((x) << 8)
40 #define VDO_CMDT(x)		((x) << 6)
41 #define VDO_SVDM_VERS_MASK	VDO_SVDM_VERS(0x3)
42 #define VDO_OPOS_MASK		VDO_OPOS(0x7)
43 #define VDO_CMDT_MASK		VDO_CMDT(0x3)
44 
45 #define CMDT_INIT		0
46 #define CMDT_RSP_ACK		1
47 #define CMDT_RSP_NAK		2
48 #define CMDT_RSP_BUSY		3
49 
50 /* reserved for SVDM ... for Google UVDM */
51 #define VDO_SRC_INITIATOR	(0 << 5)
52 #define VDO_SRC_RESPONDER	(1 << 5)
53 
54 #define CMD_DISCOVER_IDENT	1
55 #define CMD_DISCOVER_SVID	2
56 #define CMD_DISCOVER_MODES	3
57 #define CMD_ENTER_MODE		4
58 #define CMD_EXIT_MODE		5
59 #define CMD_ATTENTION		6
60 
61 #define VDO_CMD_VENDOR(x)    (((0x10 + (x)) & 0x1f))
62 
63 /* ChromeOS specific commands */
64 #define VDO_CMD_VERSION		VDO_CMD_VENDOR(0)
65 #define VDO_CMD_SEND_INFO	VDO_CMD_VENDOR(1)
66 #define VDO_CMD_READ_INFO	VDO_CMD_VENDOR(2)
67 #define VDO_CMD_REBOOT		VDO_CMD_VENDOR(5)
68 #define VDO_CMD_FLASH_ERASE	VDO_CMD_VENDOR(6)
69 #define VDO_CMD_FLASH_WRITE	VDO_CMD_VENDOR(7)
70 #define VDO_CMD_ERASE_SIG	VDO_CMD_VENDOR(8)
71 #define VDO_CMD_PING_ENABLE	VDO_CMD_VENDOR(10)
72 #define VDO_CMD_CURRENT		VDO_CMD_VENDOR(11)
73 #define VDO_CMD_FLIP		VDO_CMD_VENDOR(12)
74 #define VDO_CMD_GET_LOG		VDO_CMD_VENDOR(13)
75 #define VDO_CMD_CCD_EN		VDO_CMD_VENDOR(14)
76 
77 #define PD_VDO_VID(vdo)		((vdo) >> 16)
78 #define PD_VDO_SVDM(vdo)	(((vdo) >> 15) & 1)
79 #define PD_VDO_SVDM_VER(vdo)	(((vdo) >> 13) & 0x3)
80 #define PD_VDO_OPOS(vdo)	(((vdo) >> 8) & 0x7)
81 #define PD_VDO_CMD(vdo)		((vdo) & 0x1f)
82 #define PD_VDO_CMDT(vdo)	(((vdo) >> 6) & 0x3)
83 
84 /*
85  * SVDM Identity request -> response
86  *
87  * Request is simply properly formatted SVDM header
88  *
89  * Response is 4 data objects:
90  * [0] :: SVDM header
91  * [1] :: Identitiy header
92  * [2] :: Cert Stat VDO
93  * [3] :: (Product | Cable) VDO
94  * [4] :: AMA VDO
95  *
96  */
97 #define VDO_INDEX_HDR		0
98 #define VDO_INDEX_IDH		1
99 #define VDO_INDEX_CSTAT		2
100 #define VDO_INDEX_CABLE		3
101 #define VDO_INDEX_PRODUCT	3
102 #define VDO_INDEX_AMA		4
103 
104 /*
105  * SVDM Identity Header
106  * --------------------
107  * <31>     :: data capable as a USB host
108  * <30>     :: data capable as a USB device
109  * <29:27>  :: product type (UFP / Cable / VPD)
110  * <26>     :: modal operation supported (1b == yes)
111  * <25:23>  :: product type (DFP) (SVDM version 2.0+ only; set to zero in version 1.0)
112  * <22:21>  :: connector type (SVDM version 2.0+ only; set to zero in version 1.0)
113  * <20:16>  :: Reserved, Shall be set to zero
114  * <15:0>   :: USB-IF assigned VID for this cable vendor
115  */
116 
117 /* PD Rev2.0 definition */
118 #define IDH_PTYPE_UNDEF		0
119 
120 /* SOP Product Type (UFP) */
121 #define IDH_PTYPE_NOT_UFP	0
122 #define IDH_PTYPE_HUB		1
123 #define IDH_PTYPE_PERIPH	2
124 #define IDH_PTYPE_PSD		3
125 #define IDH_PTYPE_AMA		5
126 
127 /* SOP' Product Type (Cable Plug / VPD) */
128 #define IDH_PTYPE_NOT_CABLE	0
129 #define IDH_PTYPE_PCABLE	3
130 #define IDH_PTYPE_ACABLE	4
131 #define IDH_PTYPE_VPD		6
132 
133 /* SOP Product Type (DFP) */
134 #define IDH_PTYPE_NOT_DFP	0
135 #define IDH_PTYPE_DFP_HUB	1
136 #define IDH_PTYPE_DFP_HOST	2
137 #define IDH_PTYPE_DFP_PB	3
138 
139 /* ID Header Mask */
140 #define IDH_DFP_MASK		GENMASK(25, 23)
141 #define IDH_CONN_MASK		GENMASK(22, 21)
142 
143 #define VDO_IDH(usbh, usbd, ufp_cable, is_modal, dfp, conn, vid)		\
144 	((usbh) << 31 | (usbd) << 30 | ((ufp_cable) & 0x7) << 27		\
145 	 | (is_modal) << 26 | ((dfp) & 0x7) << 23 | ((conn) & 0x3) << 21	\
146 	 | ((vid) & 0xffff))
147 
148 #define PD_IDH_PTYPE(vdo)	(((vdo) >> 27) & 0x7)
149 #define PD_IDH_VID(vdo)		((vdo) & 0xffff)
150 #define PD_IDH_MODAL_SUPP(vdo)	((vdo) & (1 << 26))
151 #define PD_IDH_DFP_PTYPE(vdo)	(((vdo) >> 23) & 0x7)
152 #define PD_IDH_CONN_TYPE(vdo)	(((vdo) >> 21) & 0x3)
153 
154 /*
155  * Cert Stat VDO
156  * -------------
157  * <31:0>  : USB-IF assigned XID for this cable
158  */
159 #define PD_CSTAT_XID(vdo)	(vdo)
160 #define VDO_CERT(xid)		((xid) & 0xffffffff)
161 
162 /*
163  * Product VDO
164  * -----------
165  * <31:16> : USB Product ID
166  * <15:0>  : USB bcdDevice
167  */
168 #define VDO_PRODUCT(pid, bcd)	(((pid) & 0xffff) << 16 | ((bcd) & 0xffff))
169 #define PD_PRODUCT_PID(vdo)	(((vdo) >> 16) & 0xffff)
170 
171 /*
172  * UFP VDO (PD Revision 3.0+ only)
173  * --------
174  * <31:29> :: UFP VDO version
175  * <28>    :: Reserved
176  * <27:24> :: Device capability
177  * <23:22> :: Connector type (10b == receptacle, 11b == captive plug)
178  * <21:11> :: Reserved
179  * <10:8>  :: Vconn power (AMA only)
180  * <7>     :: Vconn required (AMA only, 0b == no, 1b == yes)
181  * <6>     :: Vbus required (AMA only, 0b == yes, 1b == no)
182  * <5:3>   :: Alternate modes
183  * <2:0>   :: USB highest speed
184  */
185 #define PD_VDO_UFP_DEVCAP(vdo)	(((vdo) & GENMASK(27, 24)) >> 24)
186 
187 /* UFP VDO Version */
188 #define UFP_VDO_VER1_2		2
189 
190 /* Device Capability */
191 #define DEV_USB2_CAPABLE	BIT(0)
192 #define DEV_USB2_BILLBOARD	BIT(1)
193 #define DEV_USB3_CAPABLE	BIT(2)
194 #define DEV_USB4_CAPABLE	BIT(3)
195 
196 /* Connector Type */
197 #define UFP_RECEPTACLE		2
198 #define UFP_CAPTIVE		3
199 
200 /* Vconn Power (AMA only, set to AMA_VCONN_NOT_REQ if Vconn is not required) */
201 #define AMA_VCONN_PWR_1W	0
202 #define AMA_VCONN_PWR_1W5	1
203 #define AMA_VCONN_PWR_2W	2
204 #define AMA_VCONN_PWR_3W	3
205 #define AMA_VCONN_PWR_4W	4
206 #define AMA_VCONN_PWR_5W	5
207 #define AMA_VCONN_PWR_6W	6
208 
209 /* Vconn Required (AMA only) */
210 #define AMA_VCONN_NOT_REQ	0
211 #define AMA_VCONN_REQ		1
212 
213 /* Vbus Required (AMA only) */
214 #define AMA_VBUS_REQ		0
215 #define AMA_VBUS_NOT_REQ	1
216 
217 /* Alternate Modes */
218 #define UFP_ALTMODE_NOT_SUPP	0
219 #define UFP_ALTMODE_TBT3	BIT(0)
220 #define UFP_ALTMODE_RECFG	BIT(1)
221 #define UFP_ALTMODE_NO_RECFG	BIT(2)
222 
223 /* USB Highest Speed */
224 #define UFP_USB2_ONLY		0
225 #define UFP_USB32_GEN1		1
226 #define UFP_USB32_4_GEN2	2
227 #define UFP_USB4_GEN3		3
228 
229 #define VDO_UFP(ver, cap, conn, vcpwr, vcr, vbr, alt, spd)			\
230 	(((ver) & 0x7) << 29 | ((cap) & 0xf) << 24 | ((conn) & 0x3) << 22	\
231 	 | ((vcpwr) & 0x7) << 8 | (vcr) << 7 | (vbr) << 6 | ((alt) & 0x7) << 3	\
232 	 | ((spd) & 0x7))
233 
234 /*
235  * DFP VDO (PD Revision 3.0+ only)
236  * --------
237  * <31:29> :: DFP VDO version
238  * <28:27> :: Reserved
239  * <26:24> :: Host capability
240  * <23:22> :: Connector type (10b == receptacle, 11b == captive plug)
241  * <21:5>  :: Reserved
242  * <4:0>   :: Port number
243  */
244 #define PD_VDO_DFP_HOSTCAP(vdo)	(((vdo) & GENMASK(26, 24)) >> 24)
245 
246 #define DFP_VDO_VER1_1		1
247 #define HOST_USB2_CAPABLE	BIT(0)
248 #define HOST_USB3_CAPABLE	BIT(1)
249 #define HOST_USB4_CAPABLE	BIT(2)
250 #define DFP_RECEPTACLE		2
251 #define DFP_CAPTIVE		3
252 
253 #define VDO_DFP(ver, cap, conn, pnum)						\
254 	(((ver) & 0x7) << 29 | ((cap) & 0x7) << 24 | ((conn) & 0x3) << 22	\
255 	 | ((pnum) & 0x1f))
256 
257 /*
258  * Cable VDO (for both Passive and Active Cable VDO in PD Rev2.0)
259  * ---------
260  * <31:28> :: Cable HW version
261  * <27:24> :: Cable FW version
262  * <23:20> :: Reserved, Shall be set to zero
263  * <19:18> :: type-C to Type-A/B/C/Captive (00b == A, 01 == B, 10 == C, 11 == Captive)
264  * <17>    :: Reserved, Shall be set to zero
265  * <16:13> :: cable latency (0001 == <10ns(~1m length))
266  * <12:11> :: cable termination type (11b == both ends active VCONN req)
267  * <10>    :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
268  * <9>     :: SSTX2 Directionality support
269  * <8>     :: SSRX1 Directionality support
270  * <7>     :: SSRX2 Directionality support
271  * <6:5>   :: Vbus current handling capability (01b == 3A, 10b == 5A)
272  * <4>     :: Vbus through cable (0b == no, 1b == yes)
273  * <3>     :: SOP" controller present? (0b == no, 1b == yes)
274  * <2:0>   :: USB SS Signaling support
275  *
276  * Passive Cable VDO (PD Rev3.0+)
277  * ---------
278  * <31:28> :: Cable HW version
279  * <27:24> :: Cable FW version
280  * <23:21> :: VDO version
281  * <20>    :: Reserved, Shall be set to zero
282  * <19:18> :: Type-C to Type-C/Captive (10b == C, 11b == Captive)
283  * <17>    :: Reserved, Shall be set to zero
284  * <16:13> :: cable latency (0001 == <10ns(~1m length))
285  * <12:11> :: cable termination type (10b == Vconn not req, 01b == Vconn req)
286  * <10:9>  :: Maximum Vbus voltage (00b == 20V, 01b == 30V, 10b == 40V, 11b == 50V)
287  * <8:7>   :: Reserved, Shall be set to zero
288  * <6:5>   :: Vbus current handling capability (01b == 3A, 10b == 5A)
289  * <4:3>   :: Reserved, Shall be set to zero
290  * <2:0>   :: USB highest speed
291  *
292  * Active Cable VDO 1 (PD Rev3.0+)
293  * ---------
294  * <31:28> :: Cable HW version
295  * <27:24> :: Cable FW version
296  * <23:21> :: VDO version
297  * <20>    :: Reserved, Shall be set to zero
298  * <19:18> :: Connector type (10b == C, 11b == Captive)
299  * <17>    :: Reserved, Shall be set to zero
300  * <16:13> :: cable latency (0001 == <10ns(~1m length))
301  * <12:11> :: cable termination type (10b == one end active, 11b == both ends active VCONN req)
302  * <10:9>  :: Maximum Vbus voltage (00b == 20V, 01b == 30V, 10b == 40V, 11b == 50V)
303  * <8>     :: SBU supported (0b == supported, 1b == not supported)
304  * <7>     :: SBU type (0b == passive, 1b == active)
305  * <6:5>   :: Vbus current handling capability (01b == 3A, 10b == 5A)
306  * <4>     :: Vbus through cable (0b == no, 1b == yes)
307  * <3>     :: SOP" controller present? (0b == no, 1b == yes)
308  * <2:0>   :: USB highest speed
309  */
310 /* Cable VDO Version */
311 #define CABLE_VDO_VER1_0	0
312 #define CABLE_VDO_VER1_3	3
313 
314 /* Connector Type (_ATYPE and _BTYPE are for PD Rev2.0 only) */
315 #define CABLE_ATYPE		0
316 #define CABLE_BTYPE		1
317 #define CABLE_CTYPE		2
318 #define CABLE_CAPTIVE		3
319 
320 /* Cable Latency */
321 #define CABLE_LATENCY_1M	1
322 #define CABLE_LATENCY_2M	2
323 #define CABLE_LATENCY_3M	3
324 #define CABLE_LATENCY_4M	4
325 #define CABLE_LATENCY_5M	5
326 #define CABLE_LATENCY_6M	6
327 #define CABLE_LATENCY_7M	7
328 #define CABLE_LATENCY_7M_PLUS	8
329 
330 /* Cable Termination Type */
331 #define PCABLE_VCONN_NOT_REQ	0
332 #define PCABLE_VCONN_REQ	1
333 #define ACABLE_ONE_END		2
334 #define ACABLE_BOTH_END		3
335 
336 /* Maximum Vbus Voltage */
337 #define CABLE_MAX_VBUS_20V	0
338 #define CABLE_MAX_VBUS_30V	1
339 #define CABLE_MAX_VBUS_40V	2
340 #define CABLE_MAX_VBUS_50V	3
341 
342 /* Active Cable SBU Supported/Type */
343 #define ACABLE_SBU_SUPP		0
344 #define ACABLE_SBU_NOT_SUPP	1
345 #define ACABLE_SBU_PASSIVE	0
346 #define ACABLE_SBU_ACTIVE	1
347 
348 /* Vbus Current Handling Capability */
349 #define CABLE_CURR_DEF		0
350 #define CABLE_CURR_3A		1
351 #define CABLE_CURR_5A		2
352 
353 /* USB SuperSpeed Signaling Support (PD Rev2.0) */
354 #define CABLE_USBSS_U2_ONLY	0
355 #define CABLE_USBSS_U31_GEN1	1
356 #define CABLE_USBSS_U31_GEN2	2
357 
358 /* USB Highest Speed */
359 #define CABLE_USB2_ONLY		0
360 #define CABLE_USB32_GEN1	1
361 #define CABLE_USB32_4_GEN2	2
362 #define CABLE_USB4_GEN3		3
363 
364 #define VDO_CABLE(hw, fw, cbl, lat, term, tx1d, tx2d, rx1d, rx2d, cur, vps, sopp, usbss) \
365 	(((hw) & 0x7) << 28 | ((fw) & 0x7) << 24 | ((cbl) & 0x3) << 18		\
366 	 | ((lat) & 0x7) << 13 | ((term) & 0x3) << 11 | (tx1d) << 10		\
367 	 | (tx2d) << 9 | (rx1d) << 8 | (rx2d) << 7 | ((cur) & 0x3) << 5		\
368 	 | (vps) << 4 | (sopp) << 3 | ((usbss) & 0x7))
369 #define VDO_PCABLE(hw, fw, ver, conn, lat, term, vbm, cur, spd)			\
370 	(((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21		\
371 	 | ((conn) & 0x3) << 18 | ((lat) & 0xf) << 13 | ((term) & 0x3) << 11	\
372 	 | ((vbm) & 0x3) << 9 | ((cur) & 0x3) << 5 | ((spd) & 0x7))
373 #define VDO_ACABLE1(hw, fw, ver, conn, lat, term, vbm, sbu, sbut, cur, vbt, sopp, spd) \
374 	(((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21		\
375 	 | ((conn) & 0x3) << 18	| ((lat) & 0xf) << 13 | ((term) & 0x3) << 11	\
376 	 | ((vbm) & 0x3) << 9 | (sbu) << 8 | (sbut) << 7 | ((cur) & 0x3) << 5	\
377 	 | (vbt) << 4 | (sopp) << 3 | ((spd) & 0x7))
378 
379 #define VDO_TYPEC_CABLE_TYPE(vdo)	(((vdo) >> 18) & 0x3)
380 
381 /*
382  * Active Cable VDO 2
383  * ---------
384  * <31:24> :: Maximum operating temperature
385  * <23:16> :: Shutdown temperature
386  * <15>    :: Reserved, Shall be set to zero
387  * <14:12> :: U3/CLd power
388  * <11>    :: U3 to U0 transition mode (0b == direct, 1b == through U3S)
389  * <10>    :: Physical connection (0b == copper, 1b == optical)
390  * <9>     :: Active element (0b == redriver, 1b == retimer)
391  * <8>     :: USB4 supported (0b == yes, 1b == no)
392  * <7:6>   :: USB2 hub hops consumed
393  * <5>     :: USB2 supported (0b == yes, 1b == no)
394  * <4>     :: USB3.2 supported (0b == yes, 1b == no)
395  * <3>     :: USB lanes supported (0b == one lane, 1b == two lanes)
396  * <2>     :: Optically isolated active cable (0b == no, 1b == yes)
397  * <1>     :: Reserved, Shall be set to zero
398  * <0>     :: USB gen (0b == gen1, 1b == gen2+)
399  */
400 /* U3/CLd Power*/
401 #define ACAB2_U3_CLD_10MW_PLUS	0
402 #define ACAB2_U3_CLD_10MW	1
403 #define ACAB2_U3_CLD_5MW	2
404 #define ACAB2_U3_CLD_1MW	3
405 #define ACAB2_U3_CLD_500UW	4
406 #define ACAB2_U3_CLD_200UW	5
407 #define ACAB2_U3_CLD_50UW	6
408 
409 /* Other Active Cable VDO 2 Fields */
410 #define ACAB2_U3U0_DIRECT	0
411 #define ACAB2_U3U0_U3S		1
412 #define ACAB2_PHY_COPPER	0
413 #define ACAB2_PHY_OPTICAL	1
414 #define ACAB2_REDRIVER		0
415 #define ACAB2_RETIMER		1
416 #define ACAB2_USB4_SUPP		0
417 #define ACAB2_USB4_NOT_SUPP	1
418 #define ACAB2_USB2_SUPP		0
419 #define ACAB2_USB2_NOT_SUPP	1
420 #define ACAB2_USB32_SUPP	0
421 #define ACAB2_USB32_NOT_SUPP	1
422 #define ACAB2_LANES_ONE		0
423 #define ACAB2_LANES_TWO		1
424 #define ACAB2_OPT_ISO_NO	0
425 #define ACAB2_OPT_ISO_YES	1
426 #define ACAB2_GEN_1		0
427 #define ACAB2_GEN_2_PLUS	1
428 
429 #define VDO_ACABLE2(mtemp, stemp, u3p, trans, phy, ele, u4, hops, u2, u32, lane, iso, gen)	\
430 	(((mtemp) & 0xff) << 24 | ((stemp) & 0xff) << 16 | ((u3p) & 0x7) << 12	\
431 	 | (trans) << 11 | (phy) << 10 | (ele) << 9 | (u4) << 8			\
432 	 | ((hops) & 0x3) << 6 | (u2) << 5 | (u32) << 4 | (lane) << 3		\
433 	 | (iso) << 2 | (gen))
434 
435 /*
436  * AMA VDO (PD Rev2.0)
437  * ---------
438  * <31:28> :: Cable HW version
439  * <27:24> :: Cable FW version
440  * <23:12> :: Reserved, Shall be set to zero
441  * <11>    :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
442  * <10>    :: SSTX2 Directionality support
443  * <9>     :: SSRX1 Directionality support
444  * <8>     :: SSRX2 Directionality support
445  * <7:5>   :: Vconn power
446  * <4>     :: Vconn power required
447  * <3>     :: Vbus power required
448  * <2:0>   :: USB SS Signaling support
449  */
450 #define VDO_AMA(hw, fw, tx1d, tx2d, rx1d, rx2d, vcpwr, vcr, vbr, usbss) \
451 	(((hw) & 0x7) << 28 | ((fw) & 0x7) << 24			\
452 	 | (tx1d) << 11 | (tx2d) << 10 | (rx1d) << 9 | (rx2d) << 8	\
453 	 | ((vcpwr) & 0x7) << 5 | (vcr) << 4 | (vbr) << 3		\
454 	 | ((usbss) & 0x7))
455 
456 #define PD_VDO_AMA_VCONN_REQ(vdo)	(((vdo) >> 4) & 1)
457 #define PD_VDO_AMA_VBUS_REQ(vdo)	(((vdo) >> 3) & 1)
458 
459 #define AMA_USBSS_U2_ONLY	0
460 #define AMA_USBSS_U31_GEN1	1
461 #define AMA_USBSS_U31_GEN2	2
462 #define AMA_USBSS_BBONLY	3
463 
464 /*
465  * VPD VDO
466  * ---------
467  * <31:28> :: HW version
468  * <27:24> :: FW version
469  * <23:21> :: VDO version
470  * <20:17> :: Reserved, Shall be set to zero
471  * <16:15> :: Maximum Vbus voltage (00b == 20V, 01b == 30V, 10b == 40V, 11b == 50V)
472  * <14>    :: Charge through current support (0b == 3A, 1b == 5A)
473  * <13>    :: Reserved, Shall be set to zero
474  * <12:7>  :: Vbus impedance
475  * <6:1>   :: Ground impedance
476  * <0>     :: Charge through support (0b == no, 1b == yes)
477  */
478 #define VPD_VDO_VER1_0		0
479 #define VPD_MAX_VBUS_20V	0
480 #define VPD_MAX_VBUS_30V	1
481 #define VPD_MAX_VBUS_40V	2
482 #define VPD_MAX_VBUS_50V	3
483 #define VPDCT_CURR_3A		0
484 #define VPDCT_CURR_5A		1
485 #define VPDCT_NOT_SUPP		0
486 #define VPDCT_SUPP		1
487 
488 #define VDO_VPD(hw, fw, ver, vbm, curr, vbi, gi, ct)			\
489 	(((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21	\
490 	 | ((vbm) & 0x3) << 15 | (curr) << 14 | ((vbi) & 0x3f) << 7	\
491 	 | ((gi) & 0x3f) << 1 | (ct))
492 
493 /*
494  * SVDM Discover SVIDs request -> response
495  *
496  * Request is properly formatted VDM Header with discover SVIDs command.
497  * Response is a set of SVIDs of all supported SVIDs with all zero's to
498  * mark the end of SVIDs.  If more than 12 SVIDs are supported command SHOULD be
499  * repeated.
500  */
501 #define VDO_SVID(svid0, svid1)	(((svid0) & 0xffff) << 16 | ((svid1) & 0xffff))
502 #define PD_VDO_SVID_SVID0(vdo)	((vdo) >> 16)
503 #define PD_VDO_SVID_SVID1(vdo)	((vdo) & 0xffff)
504 
505 /* USB-IF SIDs */
506 #define USB_SID_PD		0xff00 /* power delivery */
507 #define USB_SID_DISPLAYPORT	0xff01
508 #define USB_SID_MHL		0xff02	/* Mobile High-Definition Link */
509 
510 /* VDM command timeouts (in ms) */
511 
512 #define PD_T_VDM_UNSTRUCTURED	500
513 #define PD_T_VDM_BUSY		100
514 #define PD_T_VDM_WAIT_MODE_E	100
515 #define PD_T_VDM_SNDR_RSP	30
516 #define PD_T_VDM_E_MODE		25
517 #define PD_T_VDM_RCVR_RSP	15
518 
519 #endif /* __LINUX_USB_PD_VDO_H */
520