diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 95 |
1 files changed, 84 insertions, 11 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 6c7e3430ec93..93d3bf4d213c 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -191,7 +191,7 @@ struct xhci_op_regs { /* bits 4:6 are reserved (and should be preserved on writes). */ /* light reset (port status stays unchanged) - reset completed when this is 0 */ #define CMD_LRESET (1 << 7) -/* FIXME: ignoring host controller save/restore state for now. */ +/* host controller save/restore state. */ #define CMD_CSS (1 << 8) #define CMD_CRS (1 << 9) /* Enable Wrap Event - '1' means xHC generates an event when MFINDEX wraps. */ @@ -269,6 +269,10 @@ struct xhci_op_regs { * A read gives the current link PM state of the port, * a write with Link State Write Strobe set sets the link state. */ +#define PORT_PLS_MASK (0xf << 5) +#define XDEV_U0 (0x0 << 5) +#define XDEV_U3 (0x3 << 5) +#define XDEV_RESUME (0xf << 5) /* true: port has power (see HCC_PPC) */ #define PORT_POWER (1 << 9) /* bits 10:13 indicate device speed: @@ -353,6 +357,8 @@ struct xhci_op_regs { #define PORT_U2_TIMEOUT(p) (((p) & 0xff) << 8) /* Bits 24:31 for port testing */ +/* USB2 Protocol PORTSPMSC */ +#define PORT_RWE (1 << 0x3) /** * struct xhci_intr_reg - Interrupt Register Set @@ -510,6 +516,7 @@ struct xhci_slot_ctx { #define MAX_EXIT (0xffff) /* Root hub port number that is needed to access the USB device */ #define ROOT_HUB_PORT(p) (((p) & 0xff) << 16) +#define DEVINFO_TO_ROOT_HUB_PORT(p) (((p) >> 16) & 0xff) /* Maximum number of ports under a hub device */ #define XHCI_MAX_PORTS(p) (((p) & 0xff) << 24) @@ -720,9 +727,18 @@ struct xhci_virt_ep { struct timer_list stop_cmd_timer; int stop_cmds_pending; struct xhci_hcd *xhci; + /* + * Sometimes the xHC can not process isochronous endpoint ring quickly + * enough, and it will miss some isoc tds on the ring and generate + * a Missed Service Error Event. + * Set skip flag when receive a Missed Service Error Event and + * process the missed tds on the endpoint ring. + */ + bool skip; }; struct xhci_virt_device { + struct usb_device *udev; /* * Commands to the hardware are passed an "input context" that * tells the hardware what to change in its data structures. @@ -737,12 +753,15 @@ struct xhci_virt_device { /* Rings saved to ensure old alt settings can be re-instated */ struct xhci_ring **ring_cache; int num_rings_cached; + /* Store xHC assigned device address */ + int address; #define XHCI_MAX_RINGS_CACHED 31 struct xhci_virt_ep eps[31]; struct completion cmd_completion; /* Status of the last command issued for this device */ u32 cmd_status; struct list_head cmd_list; + u8 port; }; @@ -873,6 +892,10 @@ struct xhci_event_cmd { #define TRB_TO_EP_INDEX(p) ((((p) & (0x1f << 16)) >> 16) - 1) #define EP_ID_FOR_TRB(p) ((((p) + 1) & 0x1f) << 16) +#define SUSPEND_PORT_FOR_TRB(p) (((p) & 1) << 23) +#define TRB_TO_SUSPEND_PORT(p) (((p) & (1 << 23)) >> 23) +#define LAST_EP_INDEX 30 + /* Set TR Dequeue Pointer command TRB fields */ #define TRB_TO_STREAM_ID(p) ((((p) & (0xffff << 16)) >> 16)) #define STREAM_ID_FOR_TRB(p) ((((p)) & 0xffff) << 16) @@ -911,6 +934,9 @@ struct xhci_event_cmd { /* Control transfer TRB specific fields */ #define TRB_DIR_IN (1<<16) +/* Isochronous TRB specific fields */ +#define TRB_SIA (1<<31) + struct xhci_generic_trb { u32 field[4]; }; @@ -1082,6 +1108,12 @@ struct xhci_scratchpad { dma_addr_t *sp_dma_buffers; }; +struct urb_priv { + int length; + int td_cnt; + struct xhci_td *td[0]; +}; + /* * Each segment table entry is 4*32bits long. 1K seems like an ok size: * (1K bytes * 8bytes/bit) / (4*32 bits) = 64 segment entries in the table, @@ -1098,6 +1130,17 @@ struct xhci_scratchpad { #define XHCI_STOP_EP_CMD_TIMEOUT 5 /* XXX: Make these module parameters */ +struct s3_save { + u32 command; + u32 dev_nt; + u64 dcbaa_ptr; + u32 config_reg; + u32 irq_pending; + u32 irq_control; + u32 erst_size; + u64 erst_base; + u64 erst_dequeue; +}; /* There is one ehci_hci structure per controller */ struct xhci_hcd { @@ -1130,7 +1173,7 @@ struct xhci_hcd { int page_size; /* Valid values are 12 to 20, inclusive */ int page_shift; - /* only one MSI vector for now, but might need more later */ + /* msi-x vectors */ int msix_count; struct msix_entry *msix_entries; /* data structures */ @@ -1161,6 +1204,12 @@ struct xhci_hcd { #endif /* Host controller watchdog timer structures */ unsigned int xhc_state; + + unsigned long bus_suspended; + unsigned long next_statechange; + + u32 command; + struct s3_save s3; /* Host controller is dying - not responding to commands. "I'm not dead yet!" * * xHC interrupts have been disabled and a watchdog timer will (or has already) @@ -1182,6 +1231,10 @@ struct xhci_hcd { #define XHCI_LINK_TRB_QUIRK (1 << 0) #define XHCI_RESET_EP_QUIRK (1 << 1) #define XHCI_NEC_HOST (1 << 2) + u32 port_c_suspend[8]; /* port suspend change*/ + u32 suspended_ports[8]; /* which ports are + suspended */ + unsigned long resume_done[MAX_HC_PORTS]; }; /* For testing purposes */ @@ -1327,11 +1380,6 @@ void xhci_setup_no_streams_ep_input_ctx(struct xhci_hcd *xhci, struct xhci_ring *xhci_dma_to_transfer_ring( struct xhci_virt_ep *ep, u64 address); -struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci, - struct urb *urb); -struct xhci_ring *xhci_triad_to_transfer_ring(struct xhci_hcd *xhci, - unsigned int slot_id, unsigned int ep_index, - unsigned int stream_id); struct xhci_ring *xhci_stream_id_to_ring( struct xhci_virt_device *dev, unsigned int ep_index, @@ -1339,6 +1387,7 @@ struct xhci_ring *xhci_stream_id_to_ring( struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci, bool allocate_in_ctx, bool allocate_completion, gfp_t mem_flags); +void xhci_urb_free_priv(struct xhci_hcd *xhci, struct urb_priv *urb_priv); void xhci_free_command(struct xhci_hcd *xhci, struct xhci_command *command); @@ -1356,8 +1405,18 @@ int xhci_init(struct usb_hcd *hcd); int xhci_run(struct usb_hcd *hcd); void xhci_stop(struct usb_hcd *hcd); void xhci_shutdown(struct usb_hcd *hcd); + +#ifdef CONFIG_PM +int xhci_suspend(struct xhci_hcd *xhci); +int xhci_resume(struct xhci_hcd *xhci, bool hibernated); +#else +#define xhci_suspend NULL +#define xhci_resume NULL +#endif + int xhci_get_frame(struct usb_hcd *hcd); irqreturn_t xhci_irq(struct usb_hcd *hcd); +irqreturn_t xhci_msi_irq(int irq, struct usb_hcd *hcd); int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev); void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev); int xhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev, @@ -1374,7 +1433,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status); int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep); int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep); void xhci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep); -int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev); +int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev); int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev); void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev); @@ -1386,21 +1445,21 @@ struct xhci_segment *trb_in_td(struct xhci_segment *start_seg, int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code); void xhci_ring_cmd_db(struct xhci_hcd *xhci); void *xhci_setup_one_noop(struct xhci_hcd *xhci); -void xhci_handle_event(struct xhci_hcd *xhci); -void xhci_set_hc_event_deq(struct xhci_hcd *xhci); int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id); int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, u32 slot_id); int xhci_queue_vendor_command(struct xhci_hcd *xhci, u32 field1, u32 field2, u32 field3, u32 field4); int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, - unsigned int ep_index); + unsigned int ep_index, int suspend); int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, int slot_id, unsigned int ep_index); int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, int slot_id, unsigned int ep_index); int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, int slot_id, unsigned int ep_index); +int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, + struct urb *urb, int slot_id, unsigned int ep_index); int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, u32 slot_id, bool command_must_succeed); int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, @@ -1422,12 +1481,26 @@ void xhci_queue_config_ep_quirk(struct xhci_hcd *xhci, unsigned int slot_id, unsigned int ep_index, struct xhci_dequeue_state *deq_state); void xhci_stop_endpoint_command_watchdog(unsigned long arg); +void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id, + unsigned int ep_index, unsigned int stream_id); /* xHCI roothub code */ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); int xhci_hub_status_data(struct usb_hcd *hcd, char *buf); +#ifdef CONFIG_PM +int xhci_bus_suspend(struct usb_hcd *hcd); +int xhci_bus_resume(struct usb_hcd *hcd); +#else +#define xhci_bus_suspend NULL +#define xhci_bus_resume NULL +#endif /* CONFIG_PM */ + +u32 xhci_port_state_to_neutral(u32 state); +int xhci_find_slot_id_by_port(struct xhci_hcd *xhci, u16 port); +void xhci_ring_device(struct xhci_hcd *xhci, int slot_id); + /* xHCI contexts */ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); |