Date: Fri, 05 Dec 2025 10:18:56 +0000 From: Tom Jones <thj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a0dd6022391a - main - xhci: Add header values for Debug Capability (DbC) Message-ID: <6932b190.357ad.1b27ce4@gitrepo.freebsd.org>
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The branch main has been updated by thj: URL: https://cgit.FreeBSD.org/src/commit/?id=a0dd6022391aa33b035962d69965ef506cc46a20 commit a0dd6022391aa33b035962d69965ef506cc46a20 Author: Tom Jones <thj@FreeBSD.org> AuthorDate: 2025-12-05 10:09:30 +0000 Commit: Tom Jones <thj@FreeBSD.org> CommitDate: 2025-12-05 10:18:02 +0000 xhci: Add header values for Debug Capability (DbC) Add header values for xHCI debug capability. These values are defined in section 7.6 of xHCI Specification 1.2b (April 2023). Reviewed by: imp Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D53897 --- sys/dev/usb/controller/xhcireg.h | 121 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) diff --git a/sys/dev/usb/controller/xhcireg.h b/sys/dev/usb/controller/xhcireg.h index 3e3ad278bcba..c4f62586a0d0 100644 --- a/sys/dev/usb/controller/xhcireg.h +++ b/sys/dev/usb/controller/xhcireg.h @@ -211,6 +211,127 @@ #define XHCI_ID_EXT_MSI 0x0011 #define XHCI_ID_USB3_TUN 0x0012 +/* + * XHCI Debug Capability + * From Section 7.6 of xHCI April 2023 Revision 1.2b. + */ +#define XHCI_DCID 0x0000 + +#define XHCI_DCDB 0x0004 /* Doorbell */ +#define XHCI_DCDB_OUT 0x00000000 +#define XHCI_DCDB_IN 0x00000100 +#define XHCI_DCDB_INVAL 0x0000FE00 + +#define XHCI_DCERSTSZ 0x0008 /* Event Ring Segment Table size */ +#define XHCI_DCERSTBA_LO 0x0010 +#define XHCI_DCERSTBA_HI 0x0014 +#define XHCI_DCERDP_LO 0x0018 +#define XHCI_DCERDP_HI 0x001C + +#define XHCI_DCCTRL 0x0020 /* Debug Control */ +#define XHCI_DCCTRL_DCR 0x00000001 +#define XHCI_DCCTRL_DCR_GET(x) (((x) ) & 0x01) +#define XHCI_DCCTRL_LSE 0x00000002 +#define XHCI_DCCTRL_LSE_GET(x) (((x) >> 1) & 0x01) +#define XHCI_DCCTRL_HOT 0x00000004 +#define XHCI_DCCTRL_HOT_GET(x) (((x) >> 2) & 0x01) +#define XHCI_DCCTRL_HIT 0x00000008 +#define XHCI_DCCTRL_HIT_GET(x) (((x) >> 3) & 0x01) +#define XHCI_DCCTRL_DRC 0x00000010 +#define XHCI_DCCTRL_DRC_GET(x) (((x) >> 4) & 0x01) +#define XHCI_DCCTRL_MBS_GET(x) (((x) >> 16) & 0xFF) +#define XHCI_DCCTRL_ADDR_GET(x) (((x) >> 24) & 0x7F) +#define XHCI_DCCTRL_DCE 0x80000000 +#define XHCI_DCCTRL_DCE_GET(x) (((x) >> 31) & 0x01) + +#define XHCI_DCST 0x0024 /* Status */ +#define XHCI_DCST_ER 0x00000001 +#define XHCI_DCST_ER_GET(x) (((x) ) & 0x01) +#define XHCI_DCST_SBR 0x00000002 +#define XHCI_DCST_SBR_GET(x) (((x) >> 1) & 0x01) +#define XHCI_DCST_PORT_GET(x) (((x) >> 24) & 0xFF) + +#define XHCI_DCPORTSC 0x0028 /* Port Control */ +#define XHCI_DCPORTSC_CCS 0x00000001 +#define XHCI_DCPORTSC_CCS_GET(x) (((x) ) & 0x01) +#define XHCI_DCPORTSC_PED 0x00000002 +#define XHCI_DCPORTSC_PED_GET(x) (((x) >> 1) & 0x01) +#define XHCI_DCPORTSC_PR 0x00000010 +#define XHCI_DCPORTSC_PR_GET(x) (((x) >> 4) & 0x01) +#define XHCI_DCPORTSC_PLS_GET(x) (((x) >> 5) & 0x0F) +#define XHCI_DCPORTSC_PLS_U0 0x00 +#define XHCI_DCPORTSC_PLS_U1 0x01 +#define XHCI_DCPORTSC_PLS_U2 0x02 +#define XHCI_DCPORTSC_PLS_U3 0x03 +#define XHCI_DCPORTSC_PLS_DISABLED 0x04 +#define XHCI_DCPORTSC_PLS_RXDETECTED 0x05 +#define XHCI_DCPORTSC_PLS_INACTIVE 0x06 +#define XHCI_DCPORTSC_PLS_POLLING 0x07 +#define XHCI_DCPORTSC_PLS_RECOVERY 0x08 +#define XHCI_DCPORTSC_PLS_HOTRESET 0x09 +#define XHCI_DCPORTSC_SPEED_GET(x) (((x) >> 10) & 0x0F) +#define XHCI_DCPORTSC_CSC 0x00020000 +#define XHCI_DCPORTSC_CSC_GET(x) (((x) >> 17) & 0x01) +#define XHCI_DCPORTSC_PRC 0x00200000 +#define XHCI_DCPORTSC_PRC_GET(x) (((x) >> 21) & 0x01) +#define XHCI_DCPORTSC_PLC 0x00400000 +#define XHCI_DCPORTSC_PLC_GET(x) (((x) >> 22) & 0x01) +#define XHCI_DCPORTSC_CEC 0x00800000 +#define XHCI_DCPORTSC_CEC_GET(x) (((x) >> 23) & 0x01) +#define XHCI_DCCP_LO 0x0030 /* Context Pointer */ +#define XHCI_DCCP_HI 0x0034 +#define XHCI_DCDDI1 0x0038 /* Device Descriptor Info */ +#define XHCI_DCDDI2 0x003C /* Device Descriptor Info */ + +/* DbC CIC offset in uint32 */ +#define XHCI_DCDBCIC_STR0DESC_LO 0x0000 +#define XHCI_DCDBCIC_STR0DESC_HI 0x0001 +#define XHCI_DCDBCIC_MANUDESC_LO 0x0002 +#define XHCI_DCDBCIC_MANUDESC_HI 0x0003 +#define XHCI_DCDBCIC_PRODDESC_LO 0x0004 +#define XHCI_DCDBCIC_PRODDESC_HI 0x0005 +#define XHCI_DCDBCIC_SERIALDESC_LO 0x0006 +#define XHCI_DCDBCIC_SERIALDESC_HI 0x0007 +#define XHCI_DCDBCIC_DESCLEN 0x0008 +#define XHCI_DCDBCIC_STR0DESC_LEN_GET(x) (((x) >> 0) & 0xff) +#define XHCI_DCDBCIC_STR0DESC_LEN_SET(x) (((x) & 0xff) << 0) +#define XHCI_DCDBCIC_MANUDESC_LEN_GET(x) (((x) >> 8) & 0xff) +#define XHCI_DCDBCIC_MANUDESC_LEN_SET(x) (((x) & 0xff) << 8) +#define XHCI_DCDBCIC_PRODDESC_LEN_GET(x) (((x) >> 16) & 0xff) +#define XHCI_DCDBCIC_PRODDESC_LEN_SET(x) (((x) & 0xff) << 16) +#define XHCI_DCDBCIC_SERIALDESC_LEN_GET(x) (((x) >> 24) & 0xff) +#define XHCI_DCDBCIC_SERIALDESC_LEN_SET(x) (((x) & 0xff) << 24) + +#define XHCI_DCSTATUS(ctrl, portsc) \ + (XHCI_DCCTRL_DCE_GET(ctrl) << 4 | \ + XHCI_DCPORTSC_CCS_GET(portsc) << 3 | \ + XHCI_DCPORTSC_PED_GET(portsc) << 2 | \ + XHCI_DCPORTSC_PR_GET(portsc) << 1 | \ + XHCI_DCCTRL_DCR_GET(ctrl)) +#define XHCI_DCPORTSC_ACK_MASK \ + (XHCI_DCPORTSC_PED | \ + XHCI_DCPORTSC_CSC | XHCI_DCPORTSC_PRC | \ + XHCI_DCPORTSC_PLC | XHCI_DCPORTSC_CEC) + +#define XHCI_DCPORT_ST_OFF 0x00 +#define XHCI_DCPORT_ST_DISCONNECTED 0x10 /* DCE only */ +#define XHCI_DCPORT_ST_DISCONNECTED_RUNNING 0x11 /* XXX: DCE + DCR */ +#define XHCI_DCPORT_ST_DISABLED 0x18 /* DCE + CCS */ +#define XHCI_DCPORT_ST_RESETTING 0x1a /* DCE + CCS + PR */ +#define XHCI_DCPORT_ST_ENABLED 0x1c /* DCE + CCS + PED */ +#define XHCI_DCPORT_ST_CONFIGURED 0x1d /* DCE + CCS + PED + DCR */ + +#define XHCI_DC_MAXPACKETLEN 1024 +/* + * While Sec 7.6.3.2 describes Endpoint IDs should be 0 or 1, + * Intel chips use Device Context Index (Sec 4.5.1) instead. + */ +#define XHCI_DC_EPID_OUT 0 +#define XHCI_DC_EPID_IN 1 +#define XHCI_DC_EPID_OUT_INTEL 2 +#define XHCI_DC_EPID_IN_INTEL 3 +#define XHCI_DC_SLOT 1 + /* XHCI register R/W wrappers */ #define XREAD1(sc, what, a) \ bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, \help
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