Re: [PATCH v3 1/3] usb: typec: Determine common SVDM Versions

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 2/1/21 5:34 AM, Kyle Tso wrote:
> PD Spec Revision 3.0 Version 2.0 + ECNs 2020-12-10
>   6.4.4.2.3 Structured VDM Version
>   "The Structured VDM Version field of the Discover Identity Command
>   sent and received during VDM discovery Shall be used to determine the
>   lowest common Structured VDM Version supported by the Port Partners or
>   Cable Plug and Shall continue to operate using this Specification
>   Revision until they are Detached."
> 
> Also clear the fields newly defined in SVDM version 2.0 for
> compatibilities. And fix some VDO definitions changed in the Spec.
> 
> Signed-off-by: Kyle Tso <kyletso@xxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
> Changes since v2:
> - rename the variable and the functions (remove the text "common")
> - remove the macro
> 
>  drivers/usb/typec/altmodes/displayport.c |   8 +-
>  drivers/usb/typec/class.c                |  21 +-
>  drivers/usb/typec/tcpm/tcpm.c            |  47 +++-
>  drivers/usb/typec/ucsi/displayport.c     |  12 +-
>  drivers/usb/typec/ucsi/ucsi.c            |   2 +
>  include/linux/usb/pd_vdo.h               | 315 +++++++++++++++++------
>  include/linux/usb/typec.h                |  10 +
>  7 files changed, 326 insertions(+), 89 deletions(-)
> 
> diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
> index e62e5e3da01e..7b47dd4ea531 100644
> --- a/drivers/usb/typec/altmodes/displayport.c
> +++ b/drivers/usb/typec/altmodes/displayport.c
> @@ -15,8 +15,10 @@
>  #include <linux/usb/typec_dp.h>
>  #include "displayport.h"
>  
> -#define DP_HEADER(_dp, cmd)		(VDO((_dp)->alt->svid, 1, cmd) | \
> -					 VDO_OPOS(USB_TYPEC_DP_MODE))
> +#define DP_HEADER(_dp, cmd)		(VDO((_dp)->alt->svid, 1,			\
> +					     typec_get_svdm_version((_dp)->typec),	\
> +					     cmd)					\
> +					 | VDO_OPOS(USB_TYPEC_DP_MODE))
>  
>  enum {
>  	DP_CONF_USB,
> @@ -62,6 +64,7 @@ struct dp_altmode {
>  	struct work_struct work;
>  	struct typec_altmode *alt;
>  	const struct typec_altmode *port;
> +	struct typec_port *typec;
>  };
>  
>  static int dp_altmode_notify(struct dp_altmode *dp)
> @@ -536,6 +539,7 @@ int dp_altmode_probe(struct typec_altmode *alt)
>  	mutex_init(&dp->lock);
>  	dp->port = port;
>  	dp->alt = alt;
> +	dp->typec = typec_altmode2port(alt);
>  
>  	alt->desc = "DisplayPort";
>  	alt->ops = &dp_altmode_ops;
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 8f77669f9cf4..4cbdb7974b4a 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -49,6 +49,7 @@ struct typec_port {
>  	enum typec_role			vconn_role;
>  	enum typec_pwr_opmode		pwr_opmode;
>  	enum typec_port_type		port_type;
> +	enum usb_pd_svdm_ver		svdm_version;
>  	struct mutex			port_type_lock;
>  
>  	enum typec_orientation		orientation;
> @@ -86,7 +87,7 @@ static const char * const typec_accessory_modes[] = {
>  
>  /* Product types defined in USB PD Specification R3.0 V2.0 */
>  static const char * const product_type_ufp[8] = {
> -	[IDH_PTYPE_UNDEF]		= "undefined",
> +	[IDH_PTYPE_NOT_UFP]		= "not_ufp",
>  	[IDH_PTYPE_HUB]			= "hub",
>  	[IDH_PTYPE_PERIPH]		= "peripheral",
>  	[IDH_PTYPE_PSD]			= "psd",
> @@ -94,17 +95,17 @@ static const char * const product_type_ufp[8] = {
>  };
>  
>  static const char * const product_type_dfp[8] = {
> -	[IDH_PTYPE_DFP_UNDEF]		= "undefined",
> +	[IDH_PTYPE_NOT_DFP]		= "not_dfp",
>  	[IDH_PTYPE_DFP_HUB]		= "hub",
>  	[IDH_PTYPE_DFP_HOST]		= "host",
>  	[IDH_PTYPE_DFP_PB]		= "power_brick",
> -	[IDH_PTYPE_DFP_AMC]		= "amc",
>  };
>  
>  static const char * const product_type_cable[8] = {
> -	[IDH_PTYPE_UNDEF]		= "undefined",
> +	[IDH_PTYPE_NOT_CABLE]		= "not_cable",
>  	[IDH_PTYPE_PCABLE]		= "passive",
>  	[IDH_PTYPE_ACABLE]		= "active",
> +	[IDH_PTYPE_VPD]			= "vpd",
>  };
>  
>  static struct usb_pd_identity *get_pd_identity(struct device *dev)
> @@ -1788,6 +1789,18 @@ int typec_find_port_data_role(const char *name)
>  }
>  EXPORT_SYMBOL_GPL(typec_find_port_data_role);
>  
> +void typec_set_svdm_version(struct typec_port *port, enum usb_pd_svdm_ver ver)
> +{
> +	port->svdm_version = ver;
> +}
> +EXPORT_SYMBOL_GPL(typec_set_svdm_version);
> +
> +enum usb_pd_svdm_ver typec_get_svdm_version(struct typec_port *port)
> +{
> +	return port->svdm_version;
> +}
> +EXPORT_SYMBOL_GPL(typec_get_svdm_version);
> +
>  /* ------------------------------------------ */
>  /* API for Multiplexer/DeMultiplexer Switches */
>  
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 0afd8ef692e8..979b7ee6473c 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -1475,6 +1475,7 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  			const u32 *p, int cnt, u32 *response,
>  			enum adev_actions *adev_action)
>  {
> +	struct typec_port *typec = port->typec_port;
>  	struct typec_altmode *pdev;
>  	struct pd_mode_data *modep;
>  	int rlen = 0;
> @@ -1500,10 +1501,21 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  			if (PD_VDO_VID(p[0]) != USB_SID_PD)
>  				break;
>  
> +			if (PD_VDO_SVDM_VER(p[0]) < typec_get_svdm_version(typec))
> +				typec_set_svdm_version(typec, PD_VDO_SVDM_VER(p[0]));
>  			/* 6.4.4.3.1: Only respond as UFP (device) */
>  			if (port->data_role == TYPEC_DEVICE &&
>  			    port->nr_snk_vdo) {
> -				for (i = 0; i <  port->nr_snk_vdo; i++)
> +				/*
> +				 * Product Type DFP and Connector Type are not defined in SVDM
> +				 * version 1.0 and shall be set to zero.
> +				 */
> +				if (typec_get_svdm_version(typec) < SVDM_VER_2_0)
> +					response[1] = port->snk_vdo[0] & ~IDH_DFP_MASK
> +						      & ~IDH_CONN_MASK;
> +				else
> +					response[1] = port->snk_vdo[0];
> +				for (i = 1; i <  port->nr_snk_vdo; i++)
>  					response[i + 1] = port->snk_vdo[i];
>  				rlen = port->nr_snk_vdo + 1;
>  			}
> @@ -1532,6 +1544,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  			response[0] = p[0] | VDO_CMDT(CMDT_RSP_BUSY);
>  			rlen = 1;
>  		}
> +		response[0] = (response[0] & ~VDO_SVDM_VERS_MASK) |
> +			      (VDO_SVDM_VERS(typec_get_svdm_version(typec)));
>  		break;
>  	case CMDT_RSP_ACK:
>  		/* silently drop message if we are not connected */
> @@ -1542,19 +1556,23 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  
>  		switch (cmd) {
>  		case CMD_DISCOVER_IDENT:
> +			if (PD_VDO_SVDM_VER(p[0]) < typec_get_svdm_version(typec))
> +				typec_set_svdm_version(typec, PD_VDO_SVDM_VER(p[0]));
>  			/* 6.4.4.3.1 */
>  			svdm_consume_identity(port, p, cnt);
> -			response[0] = VDO(USB_SID_PD, 1, CMD_DISCOVER_SVID);
> +			response[0] = VDO(USB_SID_PD, 1, typec_get_svdm_version(typec),
> +					  CMD_DISCOVER_SVID);
>  			rlen = 1;
>  			break;
>  		case CMD_DISCOVER_SVID:
>  			/* 6.4.4.3.2 */
>  			if (svdm_consume_svids(port, p, cnt)) {
> -				response[0] = VDO(USB_SID_PD, 1,
> +				response[0] = VDO(USB_SID_PD, 1, typec_get_svdm_version(typec),
>  						  CMD_DISCOVER_SVID);
>  				rlen = 1;
>  			} else if (modep->nsvids && supports_modal(port)) {
>  				response[0] = VDO(modep->svids[0], 1,
> +						  typec_get_svdm_version(typec),
>  						  CMD_DISCOVER_MODES);
>  				rlen = 1;
>  			}
> @@ -1565,7 +1583,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  			modep->svid_index++;
>  			if (modep->svid_index < modep->nsvids) {
>  				u16 svid = modep->svids[modep->svid_index];
> -				response[0] = VDO(svid, 1, CMD_DISCOVER_MODES);
> +				response[0] = VDO(svid, 1, typec_get_svdm_version(typec),
> +						  CMD_DISCOVER_MODES);
>  				rlen = 1;
>  			} else {
>  				tcpm_register_partner_altmodes(port);
> @@ -1592,6 +1611,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  			/* Unrecognized SVDM */
>  			response[0] = p[0] | VDO_CMDT(CMDT_RSP_NAK);
>  			rlen = 1;
> +			response[0] = (response[0] & ~VDO_SVDM_VERS_MASK) |
> +				      (VDO_SVDM_VERS(typec_get_svdm_version(typec)));
>  			break;
>  		}
>  		break;
> @@ -1611,6 +1632,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  			/* Unrecognized SVDM */
>  			response[0] = p[0] | VDO_CMDT(CMDT_RSP_NAK);
>  			rlen = 1;
> +			response[0] = (response[0] & ~VDO_SVDM_VERS_MASK) |
> +				      (VDO_SVDM_VERS(typec_get_svdm_version(typec)));
>  			break;
>  		}
>  		port->vdm_sm_running = false;
> @@ -1618,6 +1641,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev,
>  	default:
>  		response[0] = p[0] | VDO_CMDT(CMDT_RSP_NAK);
>  		rlen = 1;
> +		response[0] = (response[0] & ~VDO_SVDM_VERS_MASK) |
> +			      (VDO_SVDM_VERS(typec_get_svdm_version(typec)));
>  		port->vdm_sm_running = false;
>  		break;
>  	}
> @@ -1695,7 +1720,9 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port,
>  			break;
>  		case ADEV_QUEUE_VDM_SEND_EXIT_MODE_ON_FAIL:
>  			if (typec_altmode_vdm(adev, p[0], &p[1], cnt)) {
> -				response[0] = VDO(adev->svid, 1, CMD_EXIT_MODE);
> +				response[0] = VDO(adev->svid, 1,
> +						  typec_get_svdm_version(port->typec_port),
> +						  CMD_EXIT_MODE);
>  				response[0] |= VDO_OPOS(adev->mode);
>  				rlen = 1;
>  			}
> @@ -1729,7 +1756,8 @@ static void tcpm_send_vdm(struct tcpm_port *port, u32 vid, int cmd,
>  
>  	/* set VDM header with VID & CMD */
>  	header = VDO(vid, ((vid & USB_SID_PD) == USB_SID_PD) ?
> -			1 : (PD_VDO_CMD(cmd) <= CMD_ATTENTION), cmd);
> +			1 : (PD_VDO_CMD(cmd) <= CMD_ATTENTION),
> +			typec_get_svdm_version(port->typec_port), cmd);
>  	tcpm_queue_vdm(port, header, data, count);
>  }
>  
> @@ -2024,7 +2052,8 @@ static int tcpm_altmode_enter(struct typec_altmode *altmode, u32 *vdo)
>  	struct tcpm_port *port = typec_altmode_get_drvdata(altmode);
>  	u32 header;
>  
> -	header = VDO(altmode->svid, vdo ? 2 : 1, CMD_ENTER_MODE);
> +	header = VDO(altmode->svid, vdo ? 2 : 1, typec_get_svdm_version(port->typec_port),
> +		     CMD_ENTER_MODE);
>  	header |= VDO_OPOS(altmode->mode);
>  
>  	tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0);
> @@ -2036,7 +2065,7 @@ static int tcpm_altmode_exit(struct typec_altmode *altmode)
>  	struct tcpm_port *port = typec_altmode_get_drvdata(altmode);
>  	u32 header;
>  
> -	header = VDO(altmode->svid, 1, CMD_EXIT_MODE);
> +	header = VDO(altmode->svid, 1, typec_get_svdm_version(port->typec_port), CMD_EXIT_MODE);
>  	header |= VDO_OPOS(altmode->mode);
>  
>  	tcpm_queue_vdm_unlocked(port, header, NULL, 0);
> @@ -3445,6 +3474,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
>  	port->attached = false;
>  	port->pd_capable = false;
>  	port->pps_data.supported = false;
> +	typec_set_svdm_version(port->typec_port, port->typec_caps.svdm_version);
>  
>  	/*
>  	 * First Rx ID should be 0; set this to a sentinel of -1 so that
> @@ -5952,6 +5982,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
>  	port->typec_caps.fwnode = tcpc->fwnode;
>  	port->typec_caps.revision = 0x0120;	/* Type-C spec release 1.2 */
>  	port->typec_caps.pd_revision = 0x0300;	/* USB-PD spec release 3.0 */
> +	port->typec_caps.svdm_version = SVDM_VER_2_0;
>  	port->typec_caps.driver_data = port;
>  	port->typec_caps.ops = &tcpm_ops;
>  	port->typec_caps.orientation_aware = 1;
> diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c
> index 261131c9e37c..b58ef26a50e0 100644
> --- a/drivers/usb/typec/ucsi/displayport.c
> +++ b/drivers/usb/typec/ucsi/displayport.c
> @@ -48,6 +48,7 @@ struct ucsi_dp {
>  static int ucsi_displayport_enter(struct typec_altmode *alt, u32 *vdo)
>  {
>  	struct ucsi_dp *dp = typec_altmode_get_drvdata(alt);
> +	struct typec_port *port = dp->con->port;
>  	struct ucsi *ucsi = dp->con->ucsi;
>  	u64 command;
>  	u8 cur = 0;
> @@ -83,7 +84,7 @@ static int ucsi_displayport_enter(struct typec_altmode *alt, u32 *vdo)
>  	 * mode, and letting the alt mode driver continue.
>  	 */
>  
> -	dp->header = VDO(USB_TYPEC_DP_SID, 1, CMD_ENTER_MODE);
> +	dp->header = VDO(USB_TYPEC_DP_SID, 1, typec_get_svdm_version(port), CMD_ENTER_MODE);
>  	dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE);
>  	dp->header |= VDO_CMDT(CMDT_RSP_ACK);
>  
> @@ -101,6 +102,7 @@ static int ucsi_displayport_enter(struct typec_altmode *alt, u32 *vdo)
>  static int ucsi_displayport_exit(struct typec_altmode *alt)
>  {
>  	struct ucsi_dp *dp = typec_altmode_get_drvdata(alt);
> +	struct typec_port *port = dp->con->port;
>  	u64 command;
>  	int ret = 0;
>  
> @@ -120,7 +122,7 @@ static int ucsi_displayport_exit(struct typec_altmode *alt)
>  	if (ret < 0)
>  		goto out_unlock;
>  
> -	dp->header = VDO(USB_TYPEC_DP_SID, 1, CMD_EXIT_MODE);
> +	dp->header = VDO(USB_TYPEC_DP_SID, 1, typec_get_svdm_version(port), CMD_EXIT_MODE);
>  	dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE);
>  	dp->header |= VDO_CMDT(CMDT_RSP_ACK);
>  
> @@ -184,6 +186,7 @@ static int ucsi_displayport_vdm(struct typec_altmode *alt,
>  				u32 header, const u32 *data, int count)
>  {
>  	struct ucsi_dp *dp = typec_altmode_get_drvdata(alt);
> +	struct typec_port *port = dp->con->port;
>  	int cmd_type = PD_VDO_CMDT(header);
>  	int cmd = PD_VDO_CMD(header);
>  
> @@ -200,7 +203,10 @@ static int ucsi_displayport_vdm(struct typec_altmode *alt,
>  
>  	switch (cmd_type) {
>  	case CMDT_INIT:
> -		dp->header = VDO(USB_TYPEC_DP_SID, 1, cmd);
> +		if (PD_VDO_SVDM_VER(header) < typec_get_svdm_version(port))
> +			typec_set_svdm_version(port, PD_VDO_SVDM_VER(header));
> +
> +		dp->header = VDO(USB_TYPEC_DP_SID, 1, typec_get_svdm_version(port), cmd);
>  		dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE);
>  
>  		switch (cmd) {
> diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
> index ca3f4194ad90..8c4897a7bf75 100644
> --- a/drivers/usb/typec/ucsi/ucsi.c
> +++ b/drivers/usb/typec/ucsi/ucsi.c
> @@ -764,6 +764,7 @@ static void ucsi_handle_connector_change(struct work_struct *work)
>  
>  	if (con->status.change & UCSI_CONSTAT_CONNECT_CHANGE) {
>  		typec_set_pwr_role(con->port, role);
> +		typec_set_svdm_version(con->port, con->typec_cap.svdm_version);
>  
>  		switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) {
>  		case UCSI_CONSTAT_PARTNER_TYPE_UFP:
> @@ -1052,6 +1053,7 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
>  
>  	cap->revision = ucsi->cap.typec_version;
>  	cap->pd_revision = ucsi->cap.pd_version;
> +	cap->svdm_version = SVDM_VER_2_0;
>  	cap->prefer_role = TYPEC_NO_PREFERRED_ROLE;
>  
>  	if (con->cap.op_mode & UCSI_CONCAP_OPMODE_AUDIO_ACCESSORY)
> diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h
> index 8c08eeb9a74b..c30d893c9c81 100644
> --- a/include/linux/usb/pd_vdo.h
> +++ b/include/linux/usb/pd_vdo.h
> @@ -21,22 +21,24 @@
>   * ----------
>   * <31:16>  :: SVID
>   * <15>     :: VDM type ( 1b == structured, 0b == unstructured )
> - * <14:13>  :: Structured VDM version (can only be 00 == 1.0 currently)
> + * <14:13>  :: Structured VDM version
>   * <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)				\
> +#define VDO(vid, type, ver, custom)				\
>  	(((vid) << 16) |				\
>  	 ((type) << 15) |				\
> +	 ((ver) << 13) |				\
>  	 ((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_SVDM_VERS_MASK	VDO_SVDM_VERS(0x3)
>  #define VDO_OPOS_MASK		VDO_OPOS(0x7)
>  #define VDO_CMDT_MASK		VDO_CMDT(0x3)
>  
> @@ -74,6 +76,7 @@
>  
>  #define PD_VDO_VID(vdo)		((vdo) >> 16)
>  #define PD_VDO_SVDM(vdo)	(((vdo) >> 15) & 1)
> +#define PD_VDO_SVDM_VER(vdo)	(((vdo) >> 13) & 0x3)
>  #define PD_VDO_OPOS(vdo)	(((vdo) >> 8) & 0x7)
>  #define PD_VDO_CMD(vdo)		((vdo) & 0x1f)
>  #define PD_VDO_CMDT(vdo)	(((vdo) >> 6) & 0x3)
> @@ -103,34 +106,46 @@
>   * --------------------
>   * <31>     :: data capable as a USB host
>   * <30>     :: data capable as a USB device
> - * <29:27>  :: product type (UFP / Cable)
> + * <29:27>  :: product type (UFP / Cable / VPD)
>   * <26>     :: modal operation supported (1b == yes)
> - * <25:16>  :: product type (DFP)
> + * <25:23>  :: product type (DFP) (SVDM version 2.0+ only; set to zero in version 1.0)
> + * <22:21>  :: connector type (SVDM version 2.0+ only; set to zero in version 1.0)
> + * <20:16>  :: Reserved, Shall be set to zero
>   * <15:0>   :: USB-IF assigned VID for this cable vendor
>   */
> -#define IDH_PTYPE_UNDEF		0
> +/* SOP Product Type (UFP) */
> +#define IDH_PTYPE_NOT_UFP	0
>  #define IDH_PTYPE_HUB		1
>  #define IDH_PTYPE_PERIPH	2
>  #define IDH_PTYPE_PSD		3
>  #define IDH_PTYPE_AMA		5
>  
> +/* SOP' Product Type (Cable Plug / VPD) */
> +#define IDH_PTYPE_NOT_CABLE	0
>  #define IDH_PTYPE_PCABLE	3
>  #define IDH_PTYPE_ACABLE	4
> +#define IDH_PTYPE_VPD		6
>  
> -#define IDH_PTYPE_DFP_UNDEF	0
> +/* SOP Product Type (DFP) */
> +#define IDH_PTYPE_NOT_DFP	0
>  #define IDH_PTYPE_DFP_HUB	1
>  #define IDH_PTYPE_DFP_HOST	2
>  #define IDH_PTYPE_DFP_PB	3
> -#define IDH_PTYPE_DFP_AMC	4
>  
> -#define VDO_IDH(usbh, usbd, ptype, is_modal, vid)		\
> -	((usbh) << 31 | (usbd) << 30 | ((ptype) & 0x7) << 27	\
> -	 | (is_modal) << 26 | ((vid) & 0xffff))
> +/* ID Header Mask */
> +#define IDH_DFP_MASK		GENMASK(25, 23)
> +#define IDH_CONN_MASK		GENMASK(22, 21)
> +
> +#define VDO_IDH(usbh, usbd, ufp_cable, is_modal, dfp, conn, vid)		\
> +	((usbh) << 31 | (usbd) << 30 | ((ufp_cable) & 0x7) << 27		\
> +	 | (is_modal) << 26 | ((dfp) & 0x7) << 23 | ((conn) & 0x3) << 21	\
> +	 | ((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))
>  #define PD_IDH_DFP_PTYPE(vdo)	(((vdo) >> 23) & 0x7)
> +#define PD_IDH_CONN_TYPE(vdo)	(((vdo) >> 21) & 0x3)
>  
>  /*
>   * Cert Stat VDO
> @@ -138,6 +153,7 @@
>   * <31:0>  : USB-IF assigned XID for this cable
>   */
>  #define PD_CSTAT_XID(vdo)	(vdo)
> +#define VDO_CERT(xid)		((xid) & 0xffffffff)
>  
>  /*
>   * Product VDO
> @@ -149,112 +165,267 @@
>  #define PD_PRODUCT_PID(vdo)	(((vdo) >> 16) & 0xffff)
>  
>  /*
> - * UFP VDO1
> + * UFP VDO (PD Revision 3.0+ only)
>   * --------
>   * <31:29> :: UFP VDO version
>   * <28>    :: Reserved
>   * <27:24> :: Device capability
> - * <23:6>  :: Reserved
> + * <23:22> :: Connector type (10b == receptacle, 11b == captive plug)
> + * <21:11> :: Reserved
> + * <10:8>  :: Vconn power (AMA only)
> + * <7>     :: Vconn required (AMA only, 0b == no, 1b == yes)
> + * <6>     :: Vbus required (AMA only, 0b == yes, 1b == no)
>   * <5:3>   :: Alternate modes
>   * <2:0>   :: USB highest speed
>   */
> -#define PD_VDO1_UFP_DEVCAP(vdo)	(((vdo) & GENMASK(27, 24)) >> 24)
> +#define PD_VDO_UFP_DEVCAP(vdo)	(((vdo) & GENMASK(27, 24)) >> 24)
> +
> +/* UFP VDO Version */
> +#define UFP_VDO_VER1_2		2
>  
> +/* Device Capability */
>  #define DEV_USB2_CAPABLE	BIT(0)
>  #define DEV_USB2_BILLBOARD	BIT(1)
>  #define DEV_USB3_CAPABLE	BIT(2)
>  #define DEV_USB4_CAPABLE	BIT(3)
>  
> +/* Connector Type */
> +#define UFP_RECEPTACLE		2
> +#define UFP_CAPTIVE		3
> +
> +/* Vconn Power (AMA only, set to AMA_VCONN_NOT_REQ if Vconn is not required) */
> +#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
> +
> +/* Vconn Required (AMA only) */
> +#define AMA_VCONN_NOT_REQ	0
> +#define AMA_VCONN_REQ		1
> +
> +/* Vbus Required (AMA only) */
> +#define AMA_VBUS_REQ		0
> +#define AMA_VBUS_NOT_REQ	1
> +
> +/* Alternate Modes */
> +#define UFP_ALTMODE_NOT_SUPP	0
> +#define UFP_ALTMODE_TBT3	BIT(0)
> +#define UFP_ALTMODE_RECFG	BIT(1)
> +#define UFP_ALTMODE_NO_RECFG	BIT(2)
> +
> +/* USB Highest Speed */
> +#define UFP_USB2_ONLY		0
> +#define UFP_USB32_GEN1		1
> +#define UFP_USB32_4_GEN2	2
> +#define UFP_USB4_GEN3		3
> +
> +#define VDO_UFP(ver, cap, conn, vcpwr, vcr, vbr, alt, spd)			\
> +	(((ver) & 0x7) << 29 | ((cap) & 0xf) << 24 | ((conn) & 0x3) << 22	\
> +	 | ((vcpwr) & 0x7) << 8 | (vcr) << 7 | (vbr) << 6 | ((alt) & 0x7) << 3	\
> +	 | ((spd) & 0x7))
> +
>  /*
> - * DFP VDO
> + * DFP VDO (PD Revision 3.0+ only)
>   * --------
>   * <31:29> :: DFP VDO version
>   * <28:27> :: Reserved
>   * <26:24> :: Host capability
> - * <23:5>  :: Reserved
> + * <23:22> :: Connector type (10b == receptacle, 11b == captive plug)
> + * <21:5>  :: Reserved
>   * <4:0>   :: Port number
>   */
>  #define PD_VDO_DFP_HOSTCAP(vdo)	(((vdo) & GENMASK(26, 24)) >> 24)
>  
> +#define DFP_VDO_VER1_1		1
>  #define HOST_USB2_CAPABLE	BIT(0)
>  #define HOST_USB3_CAPABLE	BIT(1)
>  #define HOST_USB4_CAPABLE	BIT(2)
> +#define DFP_RECEPTACLE		2
> +#define DFP_CAPTIVE		3
> +
> +#define VDO_DFP(ver, cap, conn, pnum)						\
> +	(((ver) & 0x7) << 29 | ((cap) & 0x7) << 24 | ((conn) & 0x3) << 22	\
> +	 | ((pnum) & 0x1f))
>  
>  /*
> - * Cable VDO
> + * Passive 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/Captive (00b == A, 01 == B, 10 == C, 11 == Captive)
> - * <17>    :: Type-C to Plug/Receptacle (0b == plug, 1b == receptacle)
> + * <23:21> :: VDO version
> + * <20>    :: Reserved, Shall be set to zero
> + * <19:18> :: Type-C to Type-C/Captive (10b == C, 11b == Captive)
> + * <17>    :: Reserved, Shall be set to zero
>   * <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
> + * <12:11> :: cable termination type (10b == Vconn not req, 01b == Vconn req)
> + * <10:9>  :: Maximum Vbus voltage (00b == 20V, 01b == 30V, 10b == 40V, 11b == 50V)
> + * <8:7>   :: Reserved, Shall be set to zero
> + * <6:5>   :: Vbus current handling capability (01b == 3A, 10b == 5A)
> + * <4:3>   :: Reserved, Shall be set to zero
> + * <2:0>   :: USB highest speed
> + *
> + * Active Cable VDO 1
> + * ---------
> + * <31:28> :: Cable HW version
> + * <27:24> :: Cable FW version
> + * <23:21> :: VDO version
> + * <20>    :: Reserved, Shall be set to zero
> + * <19:18> :: Connector type (10b == C, 11b == Captive)
> + * <17>    :: Reserved, Shall be set to zero
> + * <16:13> :: cable latency (0001 == <10ns(~1m length))
> + * <12:11> :: cable termination type (10b == one end active, 11b == both ends active VCONN req)
> + * <10:9>  :: Maximum Vbus voltage (00b == 20V, 01b == 30V, 10b == 40V, 11b == 50V)
> + * <8>     :: SBU supported (0b == supported, 1b == not supported)
> + * <7>     :: SBU type (0b == passive, 1b == active)
> + * <6:5>   :: Vbus current handling capability (01b == 3A, 10b == 5A)
>   * <4>     :: Vbus through cable (0b == no, 1b == yes)
>   * <3>     :: SOP" controller present? (0b == no, 1b == yes)
> - * <2:0>   :: USB SS Signaling support
> + * <2:0>   :: USB highest speed
>   */
> -#define CABLE_ATYPE		0
> -#define CABLE_BTYPE		1
> +/* Cable VDO Version */
> +#define CABLE_VDO_VER1_0	0
> +#define CABLE_VDO_VER1_3	3
> +
> +/* Connector Type */
>  #define CABLE_CTYPE		2
>  #define CABLE_CAPTIVE		3
> -#define CABLE_PLUG		0
> -#define CABLE_RECEPTACLE	1
> -#define CABLE_CURR_1A5		0
> +
> +/* Cable Latency */
> +#define CABLE_LATENCY_1M	1
> +#define CABLE_LATENCY_2M	2
> +#define CABLE_LATENCY_3M	3
> +#define CABLE_LATENCY_4M	4
> +#define CABLE_LATENCY_5M	5
> +#define CABLE_LATENCY_6M	6
> +#define CABLE_LATENCY_7M	7
> +#define CABLE_LATENCY_7M_PLUS	8
> +
> +/* Cable Termination Type */
> +#define PCABLE_VCONN_NOT_REQ	0
> +#define PCABLE_VCONN_REQ	1
> +#define ACABLE_ONE_END		2
> +#define ACABLE_BOTH_END		3
> +
> +/* Maximum Vbus Voltage */
> +#define CABLE_MAX_VBUS_20V	0
> +#define CABLE_MAX_VBUS_30V	1
> +#define CABLE_MAX_VBUS_40V	2
> +#define CABLE_MAX_VBUS_50V	3
> +
> +/* Active Cable SBU Supported/Type */
> +#define ACABLE_SBU_SUPP		0
> +#define ACABLE_SBU_NOT_SUPP	1
> +#define ACABLE_SBU_PASSIVE	0
> +#define ACABLE_SBU_ACTIVE	1
> +
> +/* Vbus Current Handling Capability */
> +#define CABLE_CURR_DEF		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))
> +
> +/* USB Highest Speed */
> +#define CABLE_USB2_ONLY		0
> +#define CABLE_USB32_GEN1	1
> +#define CABLE_USB32_4_GEN2	2
> +#define CABLE_USB4_GEN3		3
> +
> +#define VDO_PCABLE(hw, fw, ver, conn, lat, term, vbm, cur, spd)			\
> +	(((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21		\
> +	 | ((conn) & 0x3) << 18 | ((lat) & 0xf) << 13 | ((term) & 0x3) << 11	\
> +	 | ((vbm) & 0x3) << 9 | ((cur) & 0x3) << 5 | ((spd) & 0x7))
> +#define VDO_ACABLE1(hw, fw, ver, conn, lat, term, vbm, sbu, sbut, cur, vbt, sopp, spd) \
> +	(((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21		\
> +	 | ((conn) & 0x3) << 18	| ((lat) & 0xf) << 13 | ((term) & 0x3) << 11	\
> +	 | ((vbm) & 0x3) << 9 | (sbu) << 8 | (sbut) << 7 | ((cur) & 0x3) << 5	\
> +	 | (vbt) << 4 | (sopp) << 3 | ((spd) & 0x7))
> +
>  #define VDO_TYPEC_CABLE_TYPE(vdo)	(((vdo) >> 18) & 0x3)
>  
>  /*
> - * AMA VDO
> + * Active Cable VDO 2
>   * ---------
> - * <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
> + * <31:24> :: Maximum operating temperature
> + * <23:16> :: Shutdown temperature
> + * <15>    :: Reserved, Shall be set to zero
> + * <14:12> :: U3/CLd power
> + * <11>    :: U3 to U0 transition mode (0b == direct, 1b == through U3S)
> + * <10>    :: Physical connection (0b == copper, 1b == optical)
> + * <9>     :: Active element (0b == redriver, 1b == retimer)
> + * <8>     :: USB4 supported (0b == yes, 1b == no)
> + * <7:6>   :: USB2 hub hops consumed
> + * <5>     :: USB2 supported (0b == yes, 1b == no)
> + * <4>     :: USB3.2 supported (0b == yes, 1b == no)
> + * <3>     :: USB lanes supported (0b == one lane, 1b == two lanes)
> + * <2>     :: Optically isolated active cable (0b == no, 1b == yes)
> + * <1>     :: Reserved, Shall be set to zero
> + * <0>     :: USB gen (0b == gen1, 1b == gen2+)
>   */
> -#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)
> +/* U3/CLd Power*/
> +#define ACAB2_U3_CLD_10MW_PLUS	0
> +#define ACAB2_U3_CLD_10MW	1
> +#define ACAB2_U3_CLD_5MW	2
> +#define ACAB2_U3_CLD_1MW	3
> +#define ACAB2_U3_CLD_500UW	4
> +#define ACAB2_U3_CLD_200UW	5
> +#define ACAB2_U3_CLD_50UW	6
> +
> +/* Other Active Cable VDO 2 Fields */
> +#define ACAB2_U3U0_DIRECT	0
> +#define ACAB2_U3U0_U3S		1
> +#define ACAB2_PHY_COPPER	0
> +#define ACAB2_PHY_OPTICAL	1
> +#define ACAB2_REDRIVER		0
> +#define ACAB2_RETIMER		1
> +#define ACAB2_USB4_SUPP		0
> +#define ACAB2_USB4_NOT_SUPP	1
> +#define ACAB2_USB2_SUPP		0
> +#define ACAB2_USB2_NOT_SUPP	1
> +#define ACAB2_USB32_SUPP	0
> +#define ACAB2_USB32_NOT_SUPP	1
> +#define ACAB2_LANES_ONE		0
> +#define ACAB2_LANES_TWO		1
> +#define ACAB2_OPT_ISO_NO	0
> +#define ACAB2_OPT_ISO_YES	1
> +#define ACAB2_GEN_1		0
> +#define ACAB2_GEN_2_PLUS	1
> +
> +#define VDO_ACABLE2(mtemp, stemp, u3p, trans, phy, ele, u4, hops, u2, u32, lane, iso, gen)	\
> +	(((mtemp) & 0xff) << 24 | ((stemp) & 0xff) << 16 | ((u3p) & 0x7) << 12	\
> +	 | (trans) << 11 | (phy) << 10 | (ele) << 9 | (u4) << 8			\
> +	 | ((hops) & 0x3) << 6 | (u2) << 5 | (u32) << 4 | (lane) << 3		\
> +	 | (iso) << 2 | (gen))
>  
> -#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
> +/*
> + * VPD VDO
> + * ---------
> + * <31:28> :: HW version
> + * <27:24> :: FW version
> + * <23:21> :: VDO version
> + * <20:17> :: Reserved, Shall be set to zero
> + * <16:15> :: Maximum Vbus voltage (00b == 20V, 01b == 30V, 10b == 40V, 11b == 50V)
> + * <14>    :: Charge through current support (0b == 3A, 1b == 5A)
> + * <13>    :: Reserved, Shall be set to zero
> + * <12:7>  :: Vbus impedance
> + * <6:1>   :: Ground impedance
> + * <0>     :: Charge through support (0b == no, 1b == yes)
> + */
> +#define VPD_VDO_VER1_0		0
> +#define VPD_MAX_VBUS_20V	0
> +#define VPD_MAX_VBUS_30V	1
> +#define VPD_MAX_VBUS_40V	2
> +#define VPD_MAX_VBUS_50V	3
> +#define VPDCT_CURR_3A		0
> +#define VPDCT_CURR_5A		1
> +#define VPDCT_NOT_SUPP		0
> +#define VPDCT_SUPP		1
> +
> +#define VDO_VPD(hw, fw, ver, vbm, curr, vbi, gi, ct)			\
> +	(((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21	\
> +	 | ((vbm) & 0x3) << 15 | (curr) << 14 | ((vbi) & 0x3f) << 7	\
> +	 | ((gi) & 0x3f) << 1 | (ct))
>  
>  /*
>   * SVDM Discover SVIDs request -> response
> diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
> index 54475323f83b..30b640292325 100644
> --- a/include/linux/usb/typec.h
> +++ b/include/linux/usb/typec.h
> @@ -206,12 +206,19 @@ struct typec_operations {
>  			     enum typec_port_type type);
>  };
>  
> +enum usb_pd_svdm_ver {
> +	SVDM_VER_1_0 = 0,
> +	SVDM_VER_2_0 = 1,
> +	SVDM_VER_MAX = SVDM_VER_2_0,
> +};
> +
>  /*
>   * struct typec_capability - USB Type-C Port Capabilities
>   * @type: Supported power role of the port
>   * @data: Supported data role of the port
>   * @revision: USB Type-C Specification release. Binary coded decimal
>   * @pd_revision: USB Power Delivery Specification revision if supported
> + * @svdm_version: USB PD Structured VDM version if supported
>   * @prefer_role: Initial role preference (DRP ports).
>   * @accessory: Supported Accessory Modes
>   * @fwnode: Optional fwnode of the port
> @@ -225,6 +232,7 @@ struct typec_capability {
>  	enum typec_port_data	data;
>  	u16			revision; /* 0120H = "1.2" */
>  	u16			pd_revision; /* 0300H = "3.0" */
> +	enum usb_pd_svdm_ver	svdm_version;
>  	int			prefer_role;
>  	enum typec_accessory	accessory[TYPEC_MAX_ACCESSORY];
>  	unsigned int		orientation_aware:1;
> @@ -275,4 +283,6 @@ int typec_find_orientation(const char *name);
>  int typec_find_port_power_role(const char *name);
>  int typec_find_power_role(const char *name);
>  int typec_find_port_data_role(const char *name);
> +void typec_set_svdm_version(struct typec_port *port, enum usb_pd_svdm_ver);
> +enum usb_pd_svdm_ver typec_get_svdm_version(struct typec_port *port);
>  #endif /* __LINUX_USB_TYPEC_H */
> 




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux