diff options
Diffstat (limited to 'include/usb_pd.h')
| -rw-r--r-- | include/usb_pd.h | 66 |
1 files changed, 59 insertions, 7 deletions
diff --git a/include/usb_pd.h b/include/usb_pd.h index 48acbb0f6c..29c0165ad2 100644 --- a/include/usb_pd.h +++ b/include/usb_pd.h @@ -106,6 +106,12 @@ enum pd_errors { /* TODO(tbroch) is there a finite number for these in the spec */ #define SVID_DISCOVERY_MAX 16 +/* function table for entered mode */ +struct amode_fx { + int (*status)(int port, uint32_t *payload); + int (*config)(int port, uint32_t *payload); +}; + /* function table for alternate mode capable responders */ struct svdm_response { int (*identity)(int port, uint32_t *payload); @@ -113,6 +119,7 @@ struct svdm_response { int (*modes)(int port, uint32_t *payload); int (*enter_mode)(int port, uint32_t *payload); int (*exit_mode)(int port, uint32_t *payload); + struct amode_fx *amode; }; struct svdm_svid_data { @@ -124,6 +131,8 @@ struct svdm_svid_data { struct svdm_amode_fx { uint16_t svid; void (*enter)(int port, uint32_t mode_caps); + int (*status)(int port, uint32_t *payload); + int (*config)(int port, uint32_t *payload); void (*exit)(int port); }; @@ -140,6 +149,12 @@ struct svdm_amode_data { uint32_t mode_caps; }; +enum hpd_level { + hpd_unknown = -1, + hpd_low = 0, + hpd_high, +}; + /* Policy structure for driving alternate mode */ struct pd_policy { /* index of svid currently being operated on */ @@ -162,7 +177,7 @@ struct pd_policy { * ---------- * <31:16> :: SVID * <15> :: VDM type ( 1b == structured, 0b == unstructured ) - * <14:13> :: Structured VDM version + * <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?) @@ -191,12 +206,15 @@ struct pd_policy { #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 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 CMD_DP_STATUS 16 +#define CMD_DP_CONFIG 17 + #define VDO_CMD_VENDOR(x) (((10 + (x)) & 0x1f)) /* ChromeOS specific commands */ @@ -371,6 +389,40 @@ struct pd_policy { #define MODE_DP_BOTH 0x3 /* + * DisplayPort Status VDO + * ---------------------- + * <31:9> : SBZ + * <8> : IRQ_HPD : 1 == irq arrived since last message otherwise 0. + * <7> : HPD state : 0 = HPD_LOW, 1 == HPD_HIGH + * <6> : Exit DP Alt mode: 0 == maintain, 1 == exit + * <5> : USB config : 0 == maintain current, 1 == switch to USB from DP + * <4> : Multi-function preference : 0 == no pref, 1 == MF preferred. + * <3> : enabled : is DPout on/off. + * <2> : power low : 0 == normal or LPM disabled, 1 == DP disabled for LPM + * <1:0> : connect status : 00b == no (DFP|UFP)_D is connected or disabled. + * 01b == DFP_D connected, 10b == UFP_D connected, 11b == both. + */ +#define VDO_DP_STATUS(irq, lvl, amode, usbc, mf, en, lp, conn) \ + (((irq) & 1) << 8 | ((lvl) & 1) << 7 | ((amode) & 1) << 6 \ + | ((usbc) & 1) << 5 | ((mf) & 1) << 4 | ((en) & 1) << 3 \ + | ((lp) & 1) << 2 | ((conn & 0x3) << 0)) +/* + * DisplayPort Configure VDO + * ------------------------- + * <31:24> : SBZ + * <23:16> : sink pin assignment supported (same as mode caps) + * <15:8> : source pin assignment supported (same as mode caps) + * <7:6> : SBZ + * <5:2> : signalling : 0h == unspec'd, 1h == dp v1.3, + * 2h == USB gen2, remaining rsv + * <1:0> : cfg : 00 == USB, 01|10 == DP, 11 == reserved + */ +#define VDO_DP_CFG(snkp, srcp, sig, cfg) \ + (((snkp) & 0xff) << 16 | ((srcp) & 0xff) << 8 \ + | ((sig) & 0x7) << 2 | ((cfg) & 0x3)) + +#define PD_DP_CFG_DPON(x) (((x & 0x3) == 1) || ((x & 0x3) == 2)) +/* * ChromeOS specific PD device Hardware IDs. Used to identify unique * products and used in VDO_INFO. Note this field is 10 bits. */ |