+
/*
* xHCI host controller driver
*
#define HCS_IST(p) (((p) >> 0) & 0xf)
/* bits 4:7, max number of Event Ring segments */
#define HCS_ERST_MAX(p) (((p) >> 4) & 0xf)
+/* bits 21:25 Hi 5 bits of Scratchpad buffers SW must allocate for the HW */
/* bit 26 Scratchpad restore - for save/restore HW state - not used yet */
-/* bits 27:31 number of Scratchpad buffers SW must allocate for the HW */
-#define HCS_MAX_SCRATCHPAD(p) (((p) >> 27) & 0x1f)
+/* bits 27:31 Lo 5 bits of Scratchpad buffers SW must allocate for the HW */
+#define HCS_MAX_SCRATCHPAD(p) ((((p) >> 16) & 0x3e0) | (((p) >> 27) & 0x1f))
/* HCSPARAMS3 - hcs_params3 - bitmasks */
/* bits 0:7, Max U1 to U0 latency for the roothub ports */
#define CMD_PM_INDEX (1 << 11)
/* bits 12:31 are reserved (and should be preserved on writes). */
+/* IMAN - Interrupt Management Register */
+#define IMAN_IE (1 << 1)
+#define IMAN_IP (1 << 0)
+
/* USBSTS - USB status - status bitmasks */
/* HC not running - set to 1 when run/stop bit is cleared. */
#define STS_HALT XHCI_STS_HALT
*/
#define PORT_PLS_MASK (0xf << 5)
#define XDEV_U0 (0x0 << 5)
+#define XDEV_U2 (0x2 << 5)
#define XDEV_U3 (0x3 << 5)
#define XDEV_RESUME (0xf << 5)
/* true: port has power (see HCC_PPC) */
#define PORT_PLC (1 << 22)
/* port configure error change - port failed to configure its link partner */
#define PORT_CEC (1 << 23)
-/* bit 24 reserved */
+/* Cold Attach Status - xHC can set this bit to report device attached during
+ * Sx state. Warm port reset should be perfomed to clear this bit and move port
+ * to connected state.
+ */
+#define PORT_CAS (1 << 24)
/* wake on connect (enable) */
#define PORT_WKCONN_E (1 << 25)
/* wake on disconnect (enable) */
/* Bits 24:31 for port testing */
/* USB2 Protocol PORTSPMSC */
-#define PORT_RWE (1 << 0x3)
+#define PORT_L1S_MASK 7
+#define PORT_L1S_SUCCESS 1
+#define PORT_RWE (1 << 3)
+#define PORT_HIRD(p) (((p) & 0xf) << 4)
+#define PORT_HIRD_MASK (0xf << 4)
+#define PORT_L1DS(p) (((p) & 0xff) << 8)
+#define PORT_HLE (1 << 16)
/**
* struct xhci_intr_reg - Interrupt Register Set
* (DMI) also limits the total bandwidth (across all domains) that can be used.
*/
struct xhci_bw_info {
+ /* ep_interval is zero-based */
unsigned int ep_interval;
- /* mult and num_packets are zero-based */
+ /* mult and num_packets are one-based */
unsigned int mult;
unsigned int num_packets;
unsigned int max_packet_size;
/* Percentage of bus bandwidth reserved for non-periodic transfers */
#define FS_BW_RESERVED 10
#define HS_BW_RESERVED 20
+#define SS_BW_RESERVED 10
struct xhci_virt_ep {
struct xhci_ring *ring;
#define EP_GETTING_NO_STREAMS (1 << 5)
/* ---- Related to URB cancellation ---- */
struct list_head cancelled_td_list;
- /* The TRB that was last reported in a stopped endpoint ring */
- union xhci_trb *stopped_trb;
struct xhci_td *stopped_td;
unsigned int stopped_stream;
/* Watchdog timer for stop endpoint command to cancel URBs */
struct xhci_interval_bw interval_bw[XHCI_MAX_INTERVAL];
/* Includes reserved bandwidth for async endpoints */
unsigned int bw_used;
+ unsigned int ss_bw_in;
+ unsigned int ss_bw_out;
};
__le32 flags;
};
+/* Transfer event TRB length bit mask */
+/* bits 0:23 */
+#define EVENT_TRB_LEN(p) ((p) & 0xffffff)
+
/** Transfer Event bit fields **/
#define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f)
/* Invalid Stream ID Error */
#define COMP_STRID_ERR 34
/* Secondary Bandwidth Error - may be returned by a Configure Endpoint cmd */
-/* FIXME - check for this */
#define COMP_2ND_BW_ERR 35
/* Split Transaction Error */
#define COMP_SPLIT_ERR 36
struct xhci_segment *start_seg;
union xhci_trb *first_trb;
union xhci_trb *last_trb;
+ /* actual_length of the URB has already been set */
+ bool urb_length_set;
+};
+
+/* xHCI command default timeout value */
+#define XHCI_CMD_DEFAULT_TIMEOUT (5 * HZ)
+
+/* command descriptor */
+struct xhci_cd {
+ struct list_head cancel_cmd_list;
+ struct xhci_command *command;
+ union xhci_trb *cmd_trb;
};
struct xhci_dequeue_state {
u64 erst_dequeue;
};
+/* Use for lpm */
+struct dev_info {
+ u32 dev_id;
+ struct list_head list;
+};
+
struct xhci_bus_state {
unsigned long bus_suspended;
unsigned long next_statechange;
/* data structures */
struct xhci_device_context_array *dcbaa;
struct xhci_ring *cmd_ring;
+ unsigned int cmd_ring_state;
+#define CMD_RING_STATE_RUNNING (1 << 0)
+#define CMD_RING_STATE_ABORTED (1 << 1)
+#define CMD_RING_STATE_STOPPED (1 << 2)
+ struct list_head cancel_cmd_list;
unsigned int cmd_ring_reserved_trbs;
struct xhci_ring *event_ring;
struct xhci_erst erst;
/* Scratchpad */
struct xhci_scratchpad *scratchpad;
+ /* Store LPM test failed devices' information */
+ struct list_head lpm_failed_devs;
/* slot enabling and address device helpers */
struct completion addr_dev;
#define XHCI_BROKEN_MSI (1 << 6)
#define XHCI_RESET_ON_RESUME (1 << 7)
#define XHCI_SW_BW_CHECKING (1 << 8)
+#define XHCI_AMD_0x96_HOST (1 << 9)
+#define XHCI_TRUST_TX_LENGTH (1 << 10)
+#define XHCI_SPURIOUS_REBOOT (1 << 13)
+#define XHCI_COMP_MODE_QUIRK (1 << 14)
+#define XHCI_AVOID_BEI (1 << 15)
+#define XHCI_SLOW_SUSPEND (1 << 17)
+#define XHCI_SPURIOUS_WAKEUP (1 << 18)
+#define XHCI_PME_STUCK_QUIRK (1 << 20)
unsigned int num_active_eps;
unsigned int limit_active_eps;
/* There are two roothubs to keep track of bus suspend info for */
/* Array of pointers to USB 2.0 PORTSC registers */
__le32 __iomem **usb2_ports;
unsigned int num_usb2_ports;
+ /* support xHCI 0.96 spec USB2 software LPM */
+ unsigned sw_lpm_support:1;
+ /* support xHCI 1.0 spec USB2 hardware LPM */
+ unsigned hw_lpm_support:1;
+ /* Compliance Mode Recovery Data */
+ struct timer_list comp_mode_recovery_timer;
+ u32 port_status_u0;
+/* Compliance Mode Timer Triggered every 2 seconds */
+#define COMP_MODE_RCVRY_MSECS 2000
};
/* convert between an HCD pointer and the corresponding EHCI_HCD */
static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci)
{
- u32 temp = xhci_readl(xhci, &xhci->cap_regs->hc_capbase);
- return ((HC_VERSION(temp) == 0x95) &&
- (xhci->quirks & XHCI_LINK_TRB_QUIRK));
+ return xhci->quirks & XHCI_LINK_TRB_QUIRK;
}
/* xHCI debugging */
/* xHCI PCI glue */
int xhci_register_pci(void);
void xhci_unregister_pci(void);
+#else
+static inline int xhci_register_pci(void) { return 0; }
+static inline void xhci_unregister_pci(void) {}
#endif
/* xHCI host controller glue */
+typedef void (*xhci_get_quirks_t)(struct device *, struct xhci_hcd *);
+int handshake(struct xhci_hcd *xhci, void __iomem *ptr,
+ u32 mask, u32 done, int usec);
void xhci_quiesce(struct xhci_hcd *xhci);
int xhci_halt(struct xhci_hcd *xhci);
int xhci_reset(struct xhci_hcd *xhci);
int xhci_run(struct usb_hcd *hcd);
void xhci_stop(struct usb_hcd *hcd);
void xhci_shutdown(struct usb_hcd *hcd);
+int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks);
#ifdef CONFIG_PM
-int xhci_suspend(struct xhci_hcd *xhci);
+int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup);
int xhci_resume(struct xhci_hcd *xhci, bool hibernated);
#else
#define xhci_suspend NULL
struct usb_host_endpoint **eps, unsigned int num_eps,
gfp_t mem_flags);
int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev);
+int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev);
+int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
+ struct usb_device *udev, int enable);
int xhci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev,
struct usb_tt *tt, gfp_t mem_flags);
int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
unsigned int slot_id, unsigned int ep_index,
struct xhci_dequeue_state *deq_state);
void xhci_stop_endpoint_command_watchdog(unsigned long arg);
+int xhci_cancel_cmd(struct xhci_hcd *xhci, struct xhci_command *command,
+ union xhci_trb *cmd_trb);
void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
unsigned int ep_index, unsigned int stream_id);
/* xHCI roothub code */
+void xhci_set_link_state(struct xhci_hcd *xhci, __le32 __iomem **port_array,
+ int port_id, u32 link_state);
+void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array,
+ int port_id, u32 port_bit);
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);