diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 779b01dee068..242ab9fbc8ae 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -211,6 +211,9 @@ struct xhci_op_regs { #define CONFIG_CIE (1 << 9) /* bits 10:31 - reserved and should be preserved */ +/* bits 15:0 - HCD page shift bit */ +#define XHCI_PAGE_SIZE_MASK 0xffff + /** * struct xhci_intr_reg - Interrupt Register Set * @irq_pending: IMAN - Interrupt Management Register. Used to enable @@ -1371,7 +1374,7 @@ struct xhci_ring { unsigned int num_trbs_free; /* used only by xhci DbC */ unsigned int bounce_buf_len; enum xhci_ring_type type; - bool last_td_was_short; + u32 old_trb_comp_code; struct radix_tree_root *trb_address_map; }; @@ -1514,10 +1517,7 @@ struct xhci_hcd { u16 max_interrupters; /* imod_interval in ns (I * 250ns) */ u32 imod_interval; - /* 4KB min, 128MB max */ - int page_size; - /* Valid values are 12 to 20, inclusive */ - int page_shift; + u32 page_size; /* MSI-X/MSI vectors */ int nvecs; /* optional clocks */ @@ -1759,11 +1759,20 @@ static inline void xhci_write_64(struct xhci_hcd *xhci, } -/* Link TRB chain should always be set on 0.95 hosts, and AMD 0.96 ISOC rings */ +/* + * Reportedly, some chapters of v0.95 spec said that Link TRB always has its chain bit set. + * Other chapters and later specs say that it should only be set if the link is inside a TD + * which continues from the end of one segment to the next segment. + * + * Some 0.95 hardware was found to misbehave if any link TRB doesn't have the chain bit set. + * + * 0.96 hardware from AMD and NEC was found to ignore unchained isochronous link TRBs when + * "resynchronizing the pipe" after a Missed Service Error. + */ static inline bool xhci_link_chain_quirk(struct xhci_hcd *xhci, enum xhci_ring_type type) { return (xhci->quirks & XHCI_LINK_TRB_QUIRK) || - (type == TYPE_ISOC && (xhci->quirks & XHCI_AMD_0x96_HOST)); + (type == TYPE_ISOC && (xhci->quirks & (XHCI_AMD_0x96_HOST | XHCI_NEC_HOST))); } /* xHCI debugging */ @@ -1870,7 +1879,7 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id); int xhci_ext_cap_init(struct xhci_hcd *xhci); int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup); -int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg); +int xhci_resume(struct xhci_hcd *xhci, bool power_lost, bool is_auto_resume); irqreturn_t xhci_irq(struct usb_hcd *hcd); irqreturn_t xhci_msi_irq(int irq, void *hcd); @@ -1881,11 +1890,11 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci, struct usb_tt *tt, gfp_t mem_flags); int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, u32 imod_interval); +int xhci_enable_interrupter(struct xhci_interrupter *ir); +int xhci_disable_interrupter(struct xhci_interrupter *ir); /* xHCI ring, segment, TRB, and TD functions */ dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb); -struct xhci_segment *trb_in_td(struct xhci_hcd *xhci, struct xhci_td *td, - dma_addr_t suspect_dma, bool debug); int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code); void xhci_ring_cmd_db(struct xhci_hcd *xhci); int xhci_queue_slot_control(struct xhci_hcd *xhci, struct xhci_command *cmd, |