summaryrefslogtreecommitdiffstats
path: root/drivers/usb/host/xhci.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h173
1 files changed, 99 insertions, 74 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ba1be6b7cc6d..7d1ea3bf5e1f 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -57,13 +57,13 @@
* @run_regs_off: RTSOFF - Runtime register space offset
*/
struct xhci_cap_regs {
- u32 hc_capbase;
- u32 hcs_params1;
- u32 hcs_params2;
- u32 hcs_params3;
- u32 hcc_params;
- u32 db_off;
- u32 run_regs_off;
+ __le32 hc_capbase;
+ __le32 hcs_params1;
+ __le32 hcs_params2;
+ __le32 hcs_params3;
+ __le32 hcc_params;
+ __le32 db_off;
+ __le32 run_regs_off;
/* Reserved up to (CAPLENGTH - 0x1C) */
};
@@ -155,26 +155,26 @@ struct xhci_cap_regs {
* devices.
*/
struct xhci_op_regs {
- u32 command;
- u32 status;
- u32 page_size;
- u32 reserved1;
- u32 reserved2;
- u32 dev_notification;
- u64 cmd_ring;
+ __le32 command;
+ __le32 status;
+ __le32 page_size;
+ __le32 reserved1;
+ __le32 reserved2;
+ __le32 dev_notification;
+ __le64 cmd_ring;
/* rsvd: offset 0x20-2F */
- u32 reserved3[4];
- u64 dcbaa_ptr;
- u32 config_reg;
+ __le32 reserved3[4];
+ __le64 dcbaa_ptr;
+ __le32 config_reg;
/* rsvd: offset 0x3C-3FF */
- u32 reserved4[241];
+ __le32 reserved4[241];
/* port 1 registers, which serve as a base address for other ports */
- u32 port_status_base;
- u32 port_power_base;
- u32 port_link_base;
- u32 reserved5;
+ __le32 port_status_base;
+ __le32 port_power_base;
+ __le32 port_link_base;
+ __le32 reserved5;
/* registers for ports 2-255 */
- u32 reserved6[NUM_PORT_REGS*254];
+ __le32 reserved6[NUM_PORT_REGS*254];
};
/* USBCMD - USB command - command bitmasks */
@@ -382,12 +382,12 @@ struct xhci_op_regs {
* updates the dequeue pointer.
*/
struct xhci_intr_reg {
- u32 irq_pending;
- u32 irq_control;
- u32 erst_size;
- u32 rsvd;
- u64 erst_base;
- u64 erst_dequeue;
+ __le32 irq_pending;
+ __le32 irq_control;
+ __le32 erst_size;
+ __le32 rsvd;
+ __le64 erst_base;
+ __le64 erst_dequeue;
};
/* irq_pending bitmasks */
@@ -432,8 +432,8 @@ struct xhci_intr_reg {
* or larger accesses"
*/
struct xhci_run_regs {
- u32 microframe_index;
- u32 rsvd[7];
+ __le32 microframe_index;
+ __le32 rsvd[7];
struct xhci_intr_reg ir_set[128];
};
@@ -447,7 +447,7 @@ struct xhci_run_regs {
* Section 5.6
*/
struct xhci_doorbell_array {
- u32 doorbell[256];
+ __le32 doorbell[256];
};
#define DB_VALUE(ep, stream) ((((ep) + 1) & 0xff) | ((stream) << 16))
@@ -504,12 +504,12 @@ struct xhci_container_ctx {
* reserved at the end of the slot context for HC internal use.
*/
struct xhci_slot_ctx {
- u32 dev_info;
- u32 dev_info2;
- u32 tt_info;
- u32 dev_state;
+ __le32 dev_info;
+ __le32 dev_info2;
+ __le32 tt_info;
+ __le32 dev_state;
/* offset 0x10 to 0x1f reserved for HC internal use */
- u32 reserved[4];
+ __le32 reserved[4];
};
/* dev_info bitmasks */
@@ -560,6 +560,11 @@ struct xhci_slot_ctx {
#define SLOT_STATE (0x1f << 27)
#define GET_SLOT_STATE(p) (((p) & (0x1f << 27)) >> 27)
+#define SLOT_STATE_DISABLED 0
+#define SLOT_STATE_ENABLED SLOT_STATE_DISABLED
+#define SLOT_STATE_DEFAULT 1
+#define SLOT_STATE_ADDRESSED 2
+#define SLOT_STATE_CONFIGURED 3
/**
* struct xhci_ep_ctx
@@ -580,12 +585,12 @@ struct xhci_slot_ctx {
* reserved at the end of the endpoint context for HC internal use.
*/
struct xhci_ep_ctx {
- u32 ep_info;
- u32 ep_info2;
- u64 deq;
- u32 tx_info;
+ __le32 ep_info;
+ __le32 ep_info2;
+ __le64 deq;
+ __le32 tx_info;
/* offset 0x14 - 0x1f reserved for HC internal use */
- u32 reserved[3];
+ __le32 reserved[3];
};
/* ep_info bitmasks */
@@ -660,9 +665,9 @@ struct xhci_ep_ctx {
* @add_context: set the bit of the endpoint context you want to enable
*/
struct xhci_input_control_ctx {
- u32 drop_flags;
- u32 add_flags;
- u32 rsvd2[6];
+ __le32 drop_flags;
+ __le32 add_flags;
+ __le32 rsvd2[6];
};
/* Represents everything that is needed to issue a command on the command ring.
@@ -688,9 +693,9 @@ struct xhci_command {
struct xhci_stream_ctx {
/* 64-bit stream ring address, cycle state, and stream type */
- u64 stream_ring;
+ __le64 stream_ring;
/* offset 0x14 - 0x1f reserved for HC internal use */
- u32 reserved[2];
+ __le32 reserved[2];
};
/* Stream Context Types (section 6.4.1) - bits 3:1 of stream ctx deq ptr */
@@ -803,7 +808,7 @@ struct xhci_virt_device {
*/
struct xhci_device_context_array {
/* 64-bit device addresses; we only write 32-bit addresses */
- u64 dev_context_ptrs[MAX_HC_SLOTS];
+ __le64 dev_context_ptrs[MAX_HC_SLOTS];
/* private xHCD pointers */
dma_addr_t dma;
};
@@ -816,10 +821,10 @@ struct xhci_device_context_array {
struct xhci_transfer_event {
/* 64-bit buffer address, or immediate data */
- u64 buffer;
- u32 transfer_len;
+ __le64 buffer;
+ __le32 transfer_len;
/* This field is interpreted differently based on the type of TRB */
- u32 flags;
+ __le32 flags;
};
/** Transfer Event bit fields **/
@@ -881,7 +886,9 @@ struct xhci_transfer_event {
#define COMP_STOP_INVAL 27
/* Control Abort Error - Debug Capability - control pipe aborted */
#define COMP_DBG_ABORT 28
-/* TRB type 29 and 30 reserved */
+/* Max Exit Latency Too Large Error */
+#define COMP_MEL_ERR 29
+/* TRB type 30 reserved */
/* Isoc Buffer Overrun - an isoc IN ep sent more data than could fit in TD */
#define COMP_BUFF_OVER 31
/* Event Lost Error - xHC has an "internal event overrun condition" */
@@ -898,9 +905,9 @@ struct xhci_transfer_event {
struct xhci_link_trb {
/* 64-bit segment pointer*/
- u64 segment_ptr;
- u32 intr_target;
- u32 control;
+ __le64 segment_ptr;
+ __le32 intr_target;
+ __le32 control;
};
/* control bitfields */
@@ -909,9 +916,9 @@ struct xhci_link_trb {
/* Command completion event TRB */
struct xhci_event_cmd {
/* Pointer to command TRB, or the value passed by the event data trb */
- u64 cmd_trb;
- u32 status;
- u32 flags;
+ __le64 cmd_trb;
+ __le32 status;
+ __le32 flags;
};
/* flags bitmasks */
@@ -943,6 +950,8 @@ struct xhci_event_cmd {
/* Interrupter Target - which MSI-X vector to target the completion event at */
#define TRB_INTR_TARGET(p) (((p) & 0x3ff) << 22)
#define GET_INTR_TARGET(p) (((p) >> 22) & 0x3ff)
+#define TRB_TBC(p) (((p) & 0x3) << 7)
+#define TRB_TLBPC(p) (((p) & 0xf) << 16)
/* Cycle bit - indicates TRB ownership by HC or HCD */
#define TRB_CYCLE (1<<0)
@@ -962,15 +971,20 @@ struct xhci_event_cmd {
/* The buffer pointer contains immediate data */
#define TRB_IDT (1<<6)
+/* Block Event Interrupt */
+#define TRB_BEI (1<<9)
/* Control transfer TRB specific fields */
#define TRB_DIR_IN (1<<16)
+#define TRB_TX_TYPE(p) ((p) << 16)
+#define TRB_DATA_OUT 2
+#define TRB_DATA_IN 3
/* Isochronous TRB specific fields */
#define TRB_SIA (1<<31)
struct xhci_generic_trb {
- u32 field[4];
+ __le32 field[4];
};
union xhci_trb {
@@ -1114,14 +1128,15 @@ struct xhci_ring {
*/
u32 cycle_state;
unsigned int stream_id;
+ bool last_td_was_short;
};
struct xhci_erst_entry {
/* 64-bit event ring segment address */
- u64 seg_addr;
- u32 seg_size;
+ __le64 seg_addr;
+ __le32 seg_size;
/* Set to zero */
- u32 rsvd;
+ __le32 rsvd;
};
struct xhci_erst {
@@ -1281,15 +1296,29 @@ struct xhci_hcd {
#define XHCI_RESET_EP_QUIRK (1 << 1)
#define XHCI_NEC_HOST (1 << 2)
#define XHCI_AMD_PLL_FIX (1 << 3)
+#define XHCI_SPURIOUS_SUCCESS (1 << 4)
+/*
+ * Certain Intel host controllers have a limit to the number of endpoint
+ * contexts they can handle. Ideally, they would signal that they can't handle
+ * anymore endpoint contexts by returning a Resource Error for the Configure
+ * Endpoint command, but they don't. Instead they expect software to keep track
+ * of the number of active endpoints for them, across configure endpoint
+ * commands, reset device commands, disable slot commands, and address device
+ * commands.
+ */
+#define XHCI_EP_LIMIT_QUIRK (1 << 5)
+#define XHCI_BROKEN_MSI (1 << 6)
+ unsigned int num_active_eps;
+ unsigned int limit_active_eps;
/* There are two roothubs to keep track of bus suspend info for */
struct xhci_bus_state bus_state[2];
/* Is each xHCI roothub port a USB 3.0, USB 2.0, or USB 1.1 port? */
u8 *port_array;
/* Array of pointers to USB 3.0 PORTSC registers */
- u32 __iomem **usb3_ports;
+ __le32 __iomem **usb3_ports;
unsigned int num_usb3_ports;
/* Array of pointers to USB 2.0 PORTSC registers */
- u32 __iomem **usb2_ports;
+ __le32 __iomem **usb2_ports;
unsigned int num_usb2_ports;
};
@@ -1322,16 +1351,13 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci)
/* TODO: copied from ehci.h - can be refactored? */
/* xHCI spec says all registers are little endian */
static inline unsigned int xhci_readl(const struct xhci_hcd *xhci,
- __u32 __iomem *regs)
+ __le32 __iomem *regs)
{
return readl(regs);
}
static inline void xhci_writel(struct xhci_hcd *xhci,
- const unsigned int val, __u32 __iomem *regs)
+ const unsigned int val, __le32 __iomem *regs)
{
- xhci_dbg(xhci,
- "`MEM_WRITE_DWORD(3'b000, 32'h%p, 32'h%0x, 4'hf);\n",
- regs, val);
writel(val, regs);
}
@@ -1345,7 +1371,7 @@ static inline void xhci_writel(struct xhci_hcd *xhci,
* the high dword, and write order is irrelevant.
*/
static inline u64 xhci_read_64(const struct xhci_hcd *xhci,
- __u64 __iomem *regs)
+ __le64 __iomem *regs)
{
__u32 __iomem *ptr = (__u32 __iomem *) regs;
u64 val_lo = readl(ptr);
@@ -1353,15 +1379,12 @@ static inline u64 xhci_read_64(const struct xhci_hcd *xhci,
return val_lo + (val_hi << 32);
}
static inline void xhci_write_64(struct xhci_hcd *xhci,
- const u64 val, __u64 __iomem *regs)
+ const u64 val, __le64 __iomem *regs)
{
__u32 __iomem *ptr = (__u32 __iomem *) regs;
u32 val_lo = lower_32_bits(val);
u32 val_hi = upper_32_bits(val);
- xhci_dbg(xhci,
- "`MEM_WRITE_DWORD(3'b000, 64'h%p, 64'h%0lx, 4'hf);\n",
- regs, (long unsigned int) val);
writel(val_lo, ptr);
writel(val_hi, ptr + 1);
}
@@ -1430,6 +1453,8 @@ void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci,
void xhci_setup_no_streams_ep_input_ctx(struct xhci_hcd *xhci,
struct xhci_ep_ctx *ep_ctx,
struct xhci_virt_ep *ep);
+void xhci_free_device_endpoint_resources(struct xhci_hcd *xhci,
+ struct xhci_virt_device *virt_dev, bool drop_control_ep);
struct xhci_ring *xhci_dma_to_transfer_ring(
struct xhci_virt_ep *ep,
u64 address);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 09:03:41 +0100