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Date:   Thu, 4 Feb 2021 08:55:41 +0800
From:   Kyle Tso <kyletso@...gle.com>
To:     Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg KH <gregkh@...uxfoundation.org>, pmalani@...omium.org,
        bleung@...omium.org
Cc:     Benson Leung <bleung@...gle.com>,
        Badhri Jagan Sridharan <badhri@...gle.com>,
        USB <linux-usb@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: pd: Reland VDO definitions of PD2.0

Hi, Benson and Prashant,

On Thu, Feb 4, 2021 at 8:50 AM Kyle Tso <kyletso@...gle.com> wrote:
>
> Reland VDO definitions of PD Revision 2.0 as they are still used in
> PD2.0 products.
>
> Fixes: 0e1d6f55a12e ("usb: pd: Update VDO definitions")
> Signed-off-by: Kyle Tso <kyletso@...gle.com>
> ---
>  include/linux/usb/pd_vdo.h | 69 ++++++++++++++++++++++++++++++++++++--
>  1 file changed, 66 insertions(+), 3 deletions(-)
>
Is there any chance that you have free time to verify this patch with
CrOS configuration?

thanks,
Kyle

> diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h
> index e9b6822c54c2..5de7f550f93e 100644
> --- a/include/linux/usb/pd_vdo.h
> +++ b/include/linux/usb/pd_vdo.h
> @@ -110,6 +110,10 @@
>   * <20:16>  :: Reserved, Shall be set to zero
>   * <15:0>   :: USB-IF assigned VID for this cable vendor
>   */
> +
> +/* PD Rev2.0 definition */
> +#define IDH_PTYPE_UNDEF                0
> +
>  /* SOP Product Type (UFP) */
>  #define IDH_PTYPE_NOT_UFP      0
>  #define IDH_PTYPE_HUB          1
> @@ -248,7 +252,25 @@
>          | ((pnum) & 0x1f))
>
>  /*
> - * Passive Cable VDO
> + * Cable VDO (for both Passive and Active Cable VDO in PD Rev2.0)
> + * ---------
> + * <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>    :: 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 (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
> + *
> + * Passive Cable VDO (PD Rev3.0+)
>   * ---------
>   * <31:28> :: Cable HW version
>   * <27:24> :: Cable FW version
> @@ -264,7 +286,7 @@
>   * <4:3>   :: Reserved, Shall be set to zero
>   * <2:0>   :: USB highest speed
>   *
> - * Active Cable VDO 1
> + * Active Cable VDO 1 (PD Rev3.0+)
>   * ---------
>   * <31:28> :: Cable HW version
>   * <27:24> :: Cable FW version
> @@ -286,7 +308,9 @@
>  #define CABLE_VDO_VER1_0       0
>  #define CABLE_VDO_VER1_3       3
>
> -/* Connector Type */
> +/* Connector Type (_ATYPE and _BTYPE are for PD Rev2.0 only) */
> +#define CABLE_ATYPE            0
> +#define CABLE_BTYPE            1
>  #define CABLE_CTYPE            2
>  #define CABLE_CAPTIVE          3
>
> @@ -323,12 +347,22 @@
>  #define CABLE_CURR_3A          1
>  #define CABLE_CURR_5A          2
>
> +/* USB SuperSpeed Signaling Support (PD Rev2.0) */
> +#define CABLE_USBSS_U2_ONLY    0
> +#define CABLE_USBSS_U31_GEN1   1
> +#define CABLE_USBSS_U31_GEN2   2
> +
>  /* 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_CABLE(hw, fw, cbl, lat, term, tx1d, tx2d, rx1d, rx2d, cur, vps, sopp, usbss) \
> +       (((hw) & 0x7) << 28 | ((fw) & 0x7) << 24 | ((cbl) & 0x3) << 18          \
> +        | ((lat) & 0x7) << 13 | ((term) & 0x3) << 11 | (tx1d) << 10            \
> +        | (tx2d) << 9 | (rx1d) << 8 | (rx2d) << 7 | ((cur) & 0x3) << 5         \
> +        | (vps) << 4 | (sopp) << 3 | ((usbss) & 0x7))
>  #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    \
> @@ -395,6 +429,35 @@
>          | ((hops) & 0x3) << 6 | (u2) << 5 | (u32) << 4 | (lane) << 3           \
>          | (iso) << 2 | (gen))
>
> +/*
> + * AMA VDO (PD Rev2.0)
> + * ---------
> + * <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_USBSS_U2_ONLY      0
> +#define AMA_USBSS_U31_GEN1     1
> +#define AMA_USBSS_U31_GEN2     2
> +#define AMA_USBSS_BBONLY       3
> +
>  /*
>   * VPD VDO
>   * ---------
> --
> 2.30.0.365.g02bc693789-goog
>

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