[linux-block.git] / include / linux / usb / pd_vdo.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright 2015-2017 Google, Inc
 */

#ifndef __LINUX_USB_PD_VDO_H
#define __LINUX_USB_PD_VDO_H

#include "pd.h"

/*
 * VDO : Vendor Defined Message Object
 * VDM object is minimum of VDM header + 6 additional data objects.
 */

#define VDO_MAX_OBJECTS		6
#define VDO_MAX_SIZE		(VDO_MAX_OBJECTS + 1)

/*
 * VDM header
 * ----------
 * <31:16>  :: SVID
 * <15>     :: VDM type ( 1b == structured, 0b == unstructured )
 * <14:13>  :: Structured VDM version (can only be 00 == 1.0 currently)
 * <12:11>  :: reserved
 * <10:8>   :: object position (1-7 valid ... used for enter/exit mode only)
 * <7:6>    :: command type (SVDM only?)
 * <5>      :: reserved (SVDM), command type (UVDM)
 * <4:0>    :: command
 */
#define VDO(vid, type, custom)				\
	(((vid) << 16) |				\
	 ((type) << 15) |				\
	 ((custom) & 0x7FFF))

#define VDO_SVDM_TYPE		(1 << 15)
#define VDO_SVDM_VERS(x)	((x) << 13)
#define VDO_OPOS(x)		((x) << 8)
#define VDO_CMDT(x)		((x) << 6)
#define VDO_OPOS_MASK		VDO_OPOS(0x7)
#define VDO_CMDT_MASK		VDO_CMDT(0x3)

#define CMDT_INIT		0
#define CMDT_RSP_ACK		1
#define CMDT_RSP_NAK		2
#define CMDT_RSP_BUSY		3

/* reserved for SVDM ... for Google UVDM */
#define VDO_SRC_INITIATOR	(0 << 5)
#define VDO_SRC_RESPONDER	(1 << 5)

#define CMD_DISCOVER_IDENT	1
#define CMD_DISCOVER_SVID	2
#define CMD_DISCOVER_MODES	3
#define CMD_ENTER_MODE		4
#define CMD_EXIT_MODE		5
#define CMD_ATTENTION		6

#define VDO_CMD_VENDOR(x)    (((0x10 + (x)) & 0x1f))

/* ChromeOS specific commands */
#define VDO_CMD_VERSION		VDO_CMD_VENDOR(0)
#define VDO_CMD_SEND_INFO	VDO_CMD_VENDOR(1)
#define VDO_CMD_READ_INFO	VDO_CMD_VENDOR(2)
#define VDO_CMD_REBOOT		VDO_CMD_VENDOR(5)
#define VDO_CMD_FLASH_ERASE	VDO_CMD_VENDOR(6)
#define VDO_CMD_FLASH_WRITE	VDO_CMD_VENDOR(7)
#define VDO_CMD_ERASE_SIG	VDO_CMD_VENDOR(8)
#define VDO_CMD_PING_ENABLE	VDO_CMD_VENDOR(10)
#define VDO_CMD_CURRENT		VDO_CMD_VENDOR(11)
#define VDO_CMD_FLIP		VDO_CMD_VENDOR(12)
#define VDO_CMD_GET_LOG		VDO_CMD_VENDOR(13)
#define VDO_CMD_CCD_EN		VDO_CMD_VENDOR(14)

#define PD_VDO_VID(vdo)		((vdo) >> 16)
#define PD_VDO_SVDM(vdo)	(((vdo) >> 15) & 1)
#define PD_VDO_OPOS(vdo)	(((vdo) >> 8) & 0x7)
#define PD_VDO_CMD(vdo)		((vdo) & 0x1f)
#define PD_VDO_CMDT(vdo)	(((vdo) >> 6) & 0x3)

/*
 * SVDM Identity request -> response
 *
 * Request is simply properly formatted SVDM header
 *
 * Response is 4 data objects:
 * [0] :: SVDM header
 * [1] :: Identitiy header
 * [2] :: Cert Stat VDO
 * [3] :: (Product | Cable) VDO
 * [4] :: AMA VDO
 *
 */
#define VDO_INDEX_HDR		0
#define VDO_INDEX_IDH		1
#define VDO_INDEX_CSTAT		2
#define VDO_INDEX_CABLE		3
#define VDO_INDEX_PRODUCT	3
#define VDO_INDEX_AMA		4

/*
 * SVDM Identity Header
 * --------------------
 * <31>     :: data capable as a USB host
 * <30>     :: data capable as a USB device
 * <29:27>  :: product type
 * <26>     :: modal operation supported (1b == yes)
 * <25:16>  :: Reserved, Shall be set to zero
 * <15:0>   :: USB-IF assigned VID for this cable vendor
 */
#define IDH_PTYPE_UNDEF		0
#define IDH_PTYPE_HUB		1
#define IDH_PTYPE_PERIPH	2
#define IDH_PTYPE_PCABLE	3
#define IDH_PTYPE_ACABLE	4
#define IDH_PTYPE_AMA		5

#define VDO_IDH(usbh, usbd, ptype, is_modal, vid)		\
	((usbh) << 31 | (usbd) << 30 | ((ptype) & 0x7) << 27	\
	 | (is_modal) << 26 | ((vid) & 0xffff))

#define PD_IDH_PTYPE(vdo)	(((vdo) >> 27) & 0x7)
#define PD_IDH_VID(vdo)		((vdo) & 0xffff)
#define PD_IDH_MODAL_SUPP(vdo)	((vdo) & (1 << 26))

/*
 * Cert Stat VDO
 * -------------
 * <31:0>  : USB-IF assigned XID for this cable
 */
#define PD_CSTAT_XID(vdo)	(vdo)

/*
 * Product VDO
 * -----------
 * <31:16> : USB Product ID
 * <15:0>  : USB bcdDevice
 */
#define VDO_PRODUCT(pid, bcd)	(((pid) & 0xffff) << 16 | ((bcd) & 0xffff))
#define PD_PRODUCT_PID(vdo)	(((vdo) >> 16) & 0xffff)

/*
 * UFP VDO1
 * --------
 * <31:29> :: UFP VDO version
 * <28>    :: Reserved
 * <27:24> :: Device capability
 * <23:6>  :: Reserved
 * <5:3>   :: Alternate modes
 * <2:0>   :: USB highest speed
 */
#define PD_VDO1_UFP_DEVCAP(vdo)	(((vdo) & GENMASK(27, 24)) >> 24)

#define DEV_USB2_CAPABLE	BIT(0)
#define DEV_USB2_BILLBOARD	BIT(1)
#define DEV_USB3_CAPABLE	BIT(2)
#define DEV_USB4_CAPABLE	BIT(3)

/*
 * DFP VDO
 * --------
 * <31:29> :: DFP VDO version
 * <28:27> :: Reserved
 * <26:24> :: Host capability
 * <23:5>  :: Reserved
 * <4:0>   :: Port number
 */
#define PD_VDO_DFP_HOSTCAP(vdo)	(((vdo) & GENMASK(26, 24)) >> 24)

#define HOST_USB2_CAPABLE	BIT(0)
#define HOST_USB3_CAPABLE	BIT(1)
#define HOST_USB4_CAPABLE	BIT(2)

/*
 * Cable VDO
 * ---------
 * <31:28> :: Cable HW version
 * <27:24> :: Cable FW version
 * <23:20> :: Reserved, Shall be set to zero
 * <19:18> :: type-C to Type-A/B/C (00b == A, 01 == B, 10 == C)
 * <17>    :: Type-C to Plug/Receptacle (0b == plug, 1b == receptacle)
 * <16:13> :: cable latency (0001 == <10ns(~1m length))
 * <12:11> :: cable termination type (11b == both ends active VCONN req)
 * <10>    :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
 * <9>     :: SSTX2 Directionality support
 * <8>     :: SSRX1 Directionality support
 * <7>     :: SSRX2 Directionality support
 * <6:5>   :: Vbus current handling capability
 * <4>     :: Vbus through cable (0b == no, 1b == yes)
 * <3>     :: SOP" controller present? (0b == no, 1b == yes)
 * <2:0>   :: USB SS Signaling support
 */
#define CABLE_ATYPE		0
#define CABLE_BTYPE		1
#define CABLE_CTYPE		2
#define CABLE_PLUG		0
#define CABLE_RECEPTACLE	1
#define CABLE_CURR_1A5		0
#define CABLE_CURR_3A		1
#define CABLE_CURR_5A		2
#define CABLE_USBSS_U2_ONLY	0
#define CABLE_USBSS_U31_GEN1	1
#define CABLE_USBSS_U31_GEN2	2
#define VDO_CABLE(hw, fw, cbl, gdr, lat, term, tx1d, tx2d, rx1d, rx2d, cur,\
		  vps, sopp, usbss) \
	(((hw) & 0x7) << 28 | ((fw) & 0x7) << 24 | ((cbl) & 0x3) << 18	\
	 | (gdr) << 17 | ((lat) & 0x7) << 13 | ((term) & 0x3) << 11	\
	 | (tx1d) << 10 | (tx2d) << 9 | (rx1d) << 8 | (rx2d) << 7	\
	 | ((cur) & 0x3) << 5 | (vps) << 4 | (sopp) << 3		\
	 | ((usbss) & 0x7))

/*
 * AMA VDO
 * ---------
 * <31:28> :: Cable HW version
 * <27:24> :: Cable FW version
 * <23:12> :: Reserved, Shall be set to zero
 * <11>    :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
 * <10>    :: SSTX2 Directionality support
 * <9>     :: SSRX1 Directionality support
 * <8>     :: SSRX2 Directionality support
 * <7:5>   :: Vconn power
 * <4>     :: Vconn power required
 * <3>     :: Vbus power required
 * <2:0>   :: USB SS Signaling support
 */
#define VDO_AMA(hw, fw, tx1d, tx2d, rx1d, rx2d, vcpwr, vcr, vbr, usbss) \
	(((hw) & 0x7) << 28 | ((fw) & 0x7) << 24			\
	 | (tx1d) << 11 | (tx2d) << 10 | (rx1d) << 9 | (rx2d) << 8	\
	 | ((vcpwr) & 0x7) << 5 | (vcr) << 4 | (vbr) << 3		\
	 | ((usbss) & 0x7))

#define PD_VDO_AMA_VCONN_REQ(vdo)	(((vdo) >> 4) & 1)
#define PD_VDO_AMA_VBUS_REQ(vdo)	(((vdo) >> 3) & 1)

#define AMA_VCONN_PWR_1W	0
#define AMA_VCONN_PWR_1W5	1
#define AMA_VCONN_PWR_2W	2
#define AMA_VCONN_PWR_3W	3
#define AMA_VCONN_PWR_4W	4
#define AMA_VCONN_PWR_5W	5
#define AMA_VCONN_PWR_6W	6
#define AMA_USBSS_U2_ONLY	0
#define AMA_USBSS_U31_GEN1	1
#define AMA_USBSS_U31_GEN2	2
#define AMA_USBSS_BBONLY	3

/*
 * SVDM Discover SVIDs request -> response
 *
 * Request is properly formatted VDM Header with discover SVIDs command.
 * Response is a set of SVIDs of all supported SVIDs with all zero's to
 * mark the end of SVIDs.  If more than 12 SVIDs are supported command SHOULD be
 * repeated.
 */
#define VDO_SVID(svid0, svid1)	(((svid0) & 0xffff) << 16 | ((svid1) & 0xffff))
#define PD_VDO_SVID_SVID0(vdo)	((vdo) >> 16)
#define PD_VDO_SVID_SVID1(vdo)	((vdo) & 0xffff)

/* USB-IF SIDs */
#define USB_SID_PD		0xff00 /* power delivery */
#define USB_SID_DISPLAYPORT	0xff01
#define USB_SID_MHL		0xff02	/* Mobile High-Definition Link */

/* VDM command timeouts (in ms) */

#define PD_T_VDM_UNSTRUCTURED	500
#define PD_T_VDM_BUSY		100
#define PD_T_VDM_WAIT_MODE_E	100
#define PD_T_VDM_SNDR_RSP	30
#define PD_T_VDM_E_MODE		25
#define PD_T_VDM_RCVR_RSP	15

#endif /* __LINUX_USB_PD_VDO_H */
Commit	Line	Data
c942fddf	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
f0690a25 GR	2	/*
f0690a25 GR	3	* Copyright 2015-2017 Google, Inc
f0690a25 GR	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
193a6801 GR	16	#define VDO_MAX_OBJECTS 6
	17	#define VDO_MAX_SIZE (VDO_MAX_OBJECTS + 1)
	18
f0690a25 GR	19	/*
	20	* VDM header
	21	* ----------
	22	* <31:16> :: SVID
	23	* <15> :: VDM type ( 1b == structured, 0b == unstructured )
	24	* <14:13> :: Structured VDM version (can only be 00 == 1.0 currently)
	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	*/
f0690a25 GR	31	#define VDO(vid, type, custom) \
	32	(((vid) << 16) \| \
	33	((type) << 15) \| \
	34	((custom) & 0x7FFF))
	35
	36	#define VDO_SVDM_TYPE (1 << 15)
	37	#define VDO_SVDM_VERS(x) ((x) << 13)
	38	#define VDO_OPOS(x) ((x) << 8)
	39	#define VDO_CMDT(x) ((x) << 6)
	40	#define VDO_OPOS_MASK VDO_OPOS(0x7)
	41	#define VDO_CMDT_MASK VDO_CMDT(0x3)
	42
	43	#define CMDT_INIT 0
	44	#define CMDT_RSP_ACK 1
	45	#define CMDT_RSP_NAK 2
	46	#define CMDT_RSP_BUSY 3
	47
	48	/* reserved for SVDM ... for Google UVDM */
	49	#define VDO_SRC_INITIATOR (0 << 5)
	50	#define VDO_SRC_RESPONDER (1 << 5)
	51
	52	#define CMD_DISCOVER_IDENT 1
	53	#define CMD_DISCOVER_SVID 2
	54	#define CMD_DISCOVER_MODES 3
	55	#define CMD_ENTER_MODE 4
	56	#define CMD_EXIT_MODE 5
	57	#define CMD_ATTENTION 6
	58
3df613ec	59	#define VDO_CMD_VENDOR(x) (((0x10 + (x)) & 0x1f))
f0690a25 GR	60
	61	/* ChromeOS specific commands */
	62	#define VDO_CMD_VERSION VDO_CMD_VENDOR(0)
	63	#define VDO_CMD_SEND_INFO VDO_CMD_VENDOR(1)
	64	#define VDO_CMD_READ_INFO VDO_CMD_VENDOR(2)
	65	#define VDO_CMD_REBOOT VDO_CMD_VENDOR(5)
	66	#define VDO_CMD_FLASH_ERASE VDO_CMD_VENDOR(6)
	67	#define VDO_CMD_FLASH_WRITE VDO_CMD_VENDOR(7)
	68	#define VDO_CMD_ERASE_SIG VDO_CMD_VENDOR(8)
	69	#define VDO_CMD_PING_ENABLE VDO_CMD_VENDOR(10)
	70	#define VDO_CMD_CURRENT VDO_CMD_VENDOR(11)
	71	#define VDO_CMD_FLIP VDO_CMD_VENDOR(12)
	72	#define VDO_CMD_GET_LOG VDO_CMD_VENDOR(13)
	73	#define VDO_CMD_CCD_EN VDO_CMD_VENDOR(14)
	74
	75	#define PD_VDO_VID(vdo) ((vdo) >> 16)
	76	#define PD_VDO_SVDM(vdo) (((vdo) >> 15) & 1)
	77	#define PD_VDO_OPOS(vdo) (((vdo) >> 8) & 0x7)
	78	#define PD_VDO_CMD(vdo) ((vdo) & 0x1f)
	79	#define PD_VDO_CMDT(vdo) (((vdo) >> 6) & 0x3)
	80
	81	/*
	82	* SVDM Identity request -> response
	83	*
	84	* Request is simply properly formatted SVDM header
	85	*
	86	* Response is 4 data objects:
	87	* [0] :: SVDM header
	88	* [1] :: Identitiy header
	89	* [2] :: Cert Stat VDO
	90	* [3] :: (Product \| Cable) VDO
	91	* [4] :: AMA VDO
	92	*
	93	*/
	94	#define VDO_INDEX_HDR 0
	95	#define VDO_INDEX_IDH 1
	96	#define VDO_INDEX_CSTAT 2
	97	#define VDO_INDEX_CABLE 3
	98	#define VDO_INDEX_PRODUCT 3
	99	#define VDO_INDEX_AMA 4
	100
	101	/*
	102	* SVDM Identity Header
	103	* --------------------
	104	* <31> :: data capable as a USB host
	105	* <30> :: data capable as a USB device
	106	* <29:27> :: product type
	107	* <26> :: modal operation supported (1b == yes)
	108	* <25:16> :: Reserved, Shall be set to zero
	109	* <15:0> :: USB-IF assigned VID for this cable vendor
	110	*/
	111	#define IDH_PTYPE_UNDEF 0
	112	#define IDH_PTYPE_HUB 1
	113	#define IDH_PTYPE_PERIPH 2
	114	#define IDH_PTYPE_PCABLE 3
	115	#define IDH_PTYPE_ACABLE 4
	116	#define IDH_PTYPE_AMA 5
	117
	118	#define VDO_IDH(usbh, usbd, ptype, is_modal, vid) \
	119	((usbh) << 31 \| (usbd) << 30 \| ((ptype) & 0x7) << 27 \
	120	\| (is_modal) << 26 \| ((vid) & 0xffff))
	121
	122	#define PD_IDH_PTYPE(vdo) (((vdo) >> 27) & 0x7)
	123	#define PD_IDH_VID(vdo) ((vdo) & 0xffff)
124	#define PD_IDH_MODAL_SUPP(vdo) ((vdo) & (1 << 26))
125
126	/*
127	* Cert Stat VDO
128	* -------------
129	* <31:0> : USB-IF assigned XID for this cable
130	*/
131	#define PD_CSTAT_XID(vdo) (vdo)
132
133	/*
134	* Product VDO
135	* -----------
136	* <31:16> : USB Product ID
137	* <15:0> : USB bcdDevice
138	*/
139	#define VDO_PRODUCT(pid, bcd) (((pid) & 0xffff) << 16 \| ((bcd) & 0xffff))
140	#define PD_PRODUCT_PID(vdo) (((vdo) >> 16) & 0xffff)
141
d48ece0b HK	142	/*
	143	* UFP VDO1
	144	* --------
	145	* <31:29> :: UFP VDO version
	146	* <28> :: Reserved
	147	* <27:24> :: Device capability
	148	* <23:6> :: Reserved
	149	* <5:3> :: Alternate modes
	150	* <2:0> :: USB highest speed
	151	*/
	152	#define PD_VDO1_UFP_DEVCAP(vdo) (((vdo) & GENMASK(27, 24)) >> 24)
	153
	154	#define DEV_USB2_CAPABLE BIT(0)
	155	#define DEV_USB2_BILLBOARD BIT(1)
	156	#define DEV_USB3_CAPABLE BIT(2)
	157	#define DEV_USB4_CAPABLE BIT(3)
	158
	159	/*
	160	* DFP VDO
	161	* --------
	162	* <31:29> :: DFP VDO version
	163	* <28:27> :: Reserved
	164	* <26:24> :: Host capability
	165	* <23:5> :: Reserved
	166	* <4:0> :: Port number
	167	*/
	168	#define PD_VDO_DFP_HOSTCAP(vdo) (((vdo) & GENMASK(26, 24)) >> 24)
	169
	170	#define HOST_USB2_CAPABLE BIT(0)
	171	#define HOST_USB3_CAPABLE BIT(1)
	172	#define HOST_USB4_CAPABLE BIT(2)
	173
f0690a25 GR	174	/*
	175	* Cable VDO
	176	* ---------
	177	* <31:28> :: Cable HW version
	178	* <27:24> :: Cable FW version
	179	* <23:20> :: Reserved, Shall be set to zero
	180	* <19:18> :: type-C to Type-A/B/C (00b == A, 01 == B, 10 == C)
	181	* <17> :: Type-C to Plug/Receptacle (0b == plug, 1b == receptacle)
	182	* <16:13> :: cable latency (0001 == <10ns(~1m length))
	183	* <12:11> :: cable termination type (11b == both ends active VCONN req)
	184	* <10> :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
	185	* <9> :: SSTX2 Directionality support
	186	* <8> :: SSRX1 Directionality support
	187	* <7> :: SSRX2 Directionality support
	188	* <6:5> :: Vbus current handling capability
	189	* <4> :: Vbus through cable (0b == no, 1b == yes)
	190	* <3> :: SOP" controller present? (0b == no, 1b == yes)
	191	* <2:0> :: USB SS Signaling support
	192	*/
	193	#define CABLE_ATYPE 0
	194	#define CABLE_BTYPE 1
	195	#define CABLE_CTYPE 2
	196	#define CABLE_PLUG 0
	197	#define CABLE_RECEPTACLE 1
	198	#define CABLE_CURR_1A5 0
	199	#define CABLE_CURR_3A 1
	200	#define CABLE_CURR_5A 2
	201	#define CABLE_USBSS_U2_ONLY 0
	202	#define CABLE_USBSS_U31_GEN1 1
	203	#define CABLE_USBSS_U31_GEN2 2
	204	#define VDO_CABLE(hw, fw, cbl, gdr, lat, term, tx1d, tx2d, rx1d, rx2d, cur,\
	205	vps, sopp, usbss) \
	206	(((hw) & 0x7) << 28 \| ((fw) & 0x7) << 24 \| ((cbl) & 0x3) << 18 \
	207	\| (gdr) << 17 \| ((lat) & 0x7) << 13 \| ((term) & 0x3) << 11 \
	208	\| (tx1d) << 10 \| (tx2d) << 9 \| (rx1d) << 8 \| (rx2d) << 7 \
	209	\| ((cur) & 0x3) << 5 \| (vps) << 4 \| (sopp) << 3 \
	210	\| ((usbss) & 0x7))
	211
	212	/*
	213	* AMA VDO
	214	* ---------
	215	* <31:28> :: Cable HW version
	216	* <27:24> :: Cable FW version
	217	* <23:12> :: Reserved, Shall be set to zero
	218	* <11> :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
	219	* <10> :: SSTX2 Directionality support
	220	* <9> :: SSRX1 Directionality support
	221	* <8> :: SSRX2 Directionality support
	222	* <7:5> :: Vconn power
	223	* <4> :: Vconn power required
	224	* <3> :: Vbus power required
	225	* <2:0> :: USB SS Signaling support
	226	*/
	227	#define VDO_AMA(hw, fw, tx1d, tx2d, rx1d, rx2d, vcpwr, vcr, vbr, usbss) \
	228	(((hw) & 0x7) << 28 \| ((fw) & 0x7) << 24 \
	229	\| (tx1d) << 11 \| (tx2d) << 10 \| (rx1d) << 9 \| (rx2d) << 8 \
	230	\| ((vcpwr) & 0x7) << 5 \| (vcr) << 4 \| (vbr) << 3 \
	231	\| ((usbss) & 0x7))
	232
	233	#define PD_VDO_AMA_VCONN_REQ(vdo) (((vdo) >> 4) & 1)
	234	#define PD_VDO_AMA_VBUS_REQ(vdo) (((vdo) >> 3) & 1)
	235
	236	#define AMA_VCONN_PWR_1W 0
	237	#define AMA_VCONN_PWR_1W5 1
238	#define AMA_VCONN_PWR_2W 2
239	#define AMA_VCONN_PWR_3W 3
240	#define AMA_VCONN_PWR_4W 4
241	#define AMA_VCONN_PWR_5W 5
242	#define AMA_VCONN_PWR_6W 6
243	#define AMA_USBSS_U2_ONLY 0
244	#define AMA_USBSS_U31_GEN1 1
245	#define AMA_USBSS_U31_GEN2 2
246	#define AMA_USBSS_BBONLY 3
247
248	/*
249	* SVDM Discover SVIDs request -> response
250	*
251	* Request is properly formatted VDM Header with discover SVIDs command.
c76ae34b	252	* Response is a set of SVIDs of all supported SVIDs with all zero's to
f0690a25 GR	253	* mark the end of SVIDs. If more than 12 SVIDs are supported command SHOULD be
	254	* repeated.
	255	*/
	256	#define VDO_SVID(svid0, svid1) (((svid0) & 0xffff) << 16 \| ((svid1) & 0xffff))
	257	#define PD_VDO_SVID_SVID0(vdo) ((vdo) >> 16)
	258	#define PD_VDO_SVID_SVID1(vdo) ((vdo) & 0xffff)
	259
	260	/* USB-IF SIDs */
	261	#define USB_SID_PD 0xff00 /* power delivery */
	262	#define USB_SID_DISPLAYPORT 0xff01
	263	#define USB_SID_MHL 0xff02 /* Mobile High-Definition Link */
	264
	265	/* VDM command timeouts (in ms) */
	266
	267	#define PD_T_VDM_UNSTRUCTURED 500
	268	#define PD_T_VDM_BUSY 100
	269	#define PD_T_VDM_WAIT_MODE_E 100
	270	#define PD_T_VDM_SNDR_RSP 30
	271	#define PD_T_VDM_E_MODE 25
	272	#define PD_T_VDM_RCVR_RSP 15
	273
	274	#endif /* __LINUX_USB_PD_VDO_H */