| Message ID | 20210205033415.3320439-3-kyletso@google.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 31737c27d665bb3bc8ad9396c63fae2543dd8818 |
| Headers | show |
| Series | common SVDM version and VDO from dt | expand |
On Fri, Feb 05, 2021 at 11:34:10AM +0800, Kyle Tso wrote: > PD Rev 3.0 introduces SVDM Version 2.0. This patch makes the field > configuable in the header in order to be able to be compatible with > older SVDM version. > > Signed-off-by: Kyle Tso <kyletso@google.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> > --- > Changes since v5: > - no change > > drivers/usb/typec/altmodes/displayport.c | 2 +- > drivers/usb/typec/tcpm/tcpm.c | 16 ++++++++-------- > drivers/usb/typec/ucsi/displayport.c | 6 +++--- > include/linux/usb/pd_vdo.h | 7 +++++-- > 4 files changed, 17 insertions(+), 14 deletions(-) > > diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c > index e62e5e3da01e..0abc3121238f 100644 > --- a/drivers/usb/typec/altmodes/displayport.c > +++ b/drivers/usb/typec/altmodes/displayport.c > @@ -15,7 +15,7 @@ > #include <linux/usb/typec_dp.h> > #include "displayport.h" > > -#define DP_HEADER(_dp, cmd) (VDO((_dp)->alt->svid, 1, cmd) | \ > +#define DP_HEADER(_dp, cmd) (VDO((_dp)->alt->svid, 1, SVDM_VER_1_0, cmd) | \ > VDO_OPOS(USB_TYPEC_DP_MODE)) > > enum { > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c > index 8558ab006885..9aadb1e1bec5 100644 > --- a/drivers/usb/typec/tcpm/tcpm.c > +++ b/drivers/usb/typec/tcpm/tcpm.c > @@ -1544,17 +1544,17 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, > case CMD_DISCOVER_IDENT: > /* 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, SVDM_VER_1_0, 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, SVDM_VER_1_0, > CMD_DISCOVER_SVID); > rlen = 1; > } else if (modep->nsvids && supports_modal(port)) { > - response[0] = VDO(modep->svids[0], 1, > + response[0] = VDO(modep->svids[0], 1, SVDM_VER_1_0, > CMD_DISCOVER_MODES); > rlen = 1; > } > @@ -1565,7 +1565,7 @@ 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, SVDM_VER_1_0, CMD_DISCOVER_MODES); > rlen = 1; > } else { > tcpm_register_partner_altmodes(port); > @@ -1695,7 +1695,7 @@ 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, SVDM_VER_1_0, CMD_EXIT_MODE); > response[0] |= VDO_OPOS(adev->mode); > rlen = 1; > } > @@ -1729,7 +1729,7 @@ 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), SVDM_VER_1_0, cmd); > tcpm_queue_vdm(port, header, data, count); > } > > @@ -2024,7 +2024,7 @@ 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, SVDM_VER_1_0, CMD_ENTER_MODE); > header |= VDO_OPOS(altmode->mode); > > tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0); > @@ -2036,7 +2036,7 @@ 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, SVDM_VER_1_0, CMD_EXIT_MODE); > header |= VDO_OPOS(altmode->mode); > > tcpm_queue_vdm_unlocked(port, header, NULL, 0); > diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c > index 261131c9e37c..1d387bddefb9 100644 > --- a/drivers/usb/typec/ucsi/displayport.c > +++ b/drivers/usb/typec/ucsi/displayport.c > @@ -83,7 +83,7 @@ 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, SVDM_VER_1_0, CMD_ENTER_MODE); > dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE); > dp->header |= VDO_CMDT(CMDT_RSP_ACK); > > @@ -120,7 +120,7 @@ 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, SVDM_VER_1_0, CMD_EXIT_MODE); > dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE); > dp->header |= VDO_CMDT(CMDT_RSP_ACK); > > @@ -200,7 +200,7 @@ static int ucsi_displayport_vdm(struct typec_altmode *alt, > > switch (cmd_type) { > case CMDT_INIT: > - dp->header = VDO(USB_TYPEC_DP_SID, 1, cmd); > + dp->header = VDO(USB_TYPEC_DP_SID, 1, SVDM_VER_1_0, cmd); > dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE); > > switch (cmd) { > diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h > index 5de7f550f93e..b057250704e8 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) > -- > 2.30.0.365.g02bc693789-goog >
diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c index e62e5e3da01e..0abc3121238f 100644 --- a/drivers/usb/typec/altmodes/displayport.c +++ b/drivers/usb/typec/altmodes/displayport.c @@ -15,7 +15,7 @@ #include <linux/usb/typec_dp.h> #include "displayport.h" -#define DP_HEADER(_dp, cmd) (VDO((_dp)->alt->svid, 1, cmd) | \ +#define DP_HEADER(_dp, cmd) (VDO((_dp)->alt->svid, 1, SVDM_VER_1_0, cmd) | \ VDO_OPOS(USB_TYPEC_DP_MODE)) enum { diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 8558ab006885..9aadb1e1bec5 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1544,17 +1544,17 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, case CMD_DISCOVER_IDENT: /* 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, SVDM_VER_1_0, 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, SVDM_VER_1_0, CMD_DISCOVER_SVID); rlen = 1; } else if (modep->nsvids && supports_modal(port)) { - response[0] = VDO(modep->svids[0], 1, + response[0] = VDO(modep->svids[0], 1, SVDM_VER_1_0, CMD_DISCOVER_MODES); rlen = 1; } @@ -1565,7 +1565,7 @@ 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, SVDM_VER_1_0, CMD_DISCOVER_MODES); rlen = 1; } else { tcpm_register_partner_altmodes(port); @@ -1695,7 +1695,7 @@ 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, SVDM_VER_1_0, CMD_EXIT_MODE); response[0] |= VDO_OPOS(adev->mode); rlen = 1; } @@ -1729,7 +1729,7 @@ 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), SVDM_VER_1_0, cmd); tcpm_queue_vdm(port, header, data, count); } @@ -2024,7 +2024,7 @@ 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, SVDM_VER_1_0, CMD_ENTER_MODE); header |= VDO_OPOS(altmode->mode); tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0); @@ -2036,7 +2036,7 @@ 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, SVDM_VER_1_0, CMD_EXIT_MODE); header |= VDO_OPOS(altmode->mode); tcpm_queue_vdm_unlocked(port, header, NULL, 0); diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c index 261131c9e37c..1d387bddefb9 100644 --- a/drivers/usb/typec/ucsi/displayport.c +++ b/drivers/usb/typec/ucsi/displayport.c @@ -83,7 +83,7 @@ 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, SVDM_VER_1_0, CMD_ENTER_MODE); dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE); dp->header |= VDO_CMDT(CMDT_RSP_ACK); @@ -120,7 +120,7 @@ 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, SVDM_VER_1_0, CMD_EXIT_MODE); dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE); dp->header |= VDO_CMDT(CMDT_RSP_ACK); @@ -200,7 +200,7 @@ static int ucsi_displayport_vdm(struct typec_altmode *alt, switch (cmd_type) { case CMDT_INIT: - dp->header = VDO(USB_TYPEC_DP_SID, 1, cmd); + dp->header = VDO(USB_TYPEC_DP_SID, 1, SVDM_VER_1_0, cmd); dp->header |= VDO_OPOS(USB_TYPEC_DP_MODE); switch (cmd) { diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h index 5de7f550f93e..b057250704e8 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)
PD Rev 3.0 introduces SVDM Version 2.0. This patch makes the field configuable in the header in order to be able to be compatible with older SVDM version. Signed-off-by: Kyle Tso <kyletso@google.com> --- Changes since v5: - no change drivers/usb/typec/altmodes/displayport.c | 2 +- drivers/usb/typec/tcpm/tcpm.c | 16 ++++++++-------- drivers/usb/typec/ucsi/displayport.c | 6 +++--- include/linux/usb/pd_vdo.h | 7 +++++-- 4 files changed, 17 insertions(+), 14 deletions(-)