diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 9ffbb103d5..37e8cee843 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * USB HOST XHCI Controller * @@ -16,7 +16,7 @@ #ifndef HOST_XHCI_H_ #define HOST_XHCI_H_ -#include <asm/types.h> +#include <linux/types.h> #include <io.h> #include <io-64-nonatomic-lo-hi.h> #include <linux/list.h> @@ -30,8 +30,8 @@ /* Section 5.3.3 - MaxPorts */ #define MAX_HC_PORTS 255 -/* Up to 16 ms to halt an HC */ -#define XHCI_MAX_HALT_USEC (16*1000) +/* Up to 32 ms to halt an HC */ +#define XHCI_MAX_HALT_USEC (32*1000) #define XHCI_MAX_RESET_USEC (250*1000) @@ -490,6 +490,7 @@ struct xhci_container_ctx { int size; u8 *bytes; + dma_addr_t dma; }; /** @@ -691,6 +692,8 @@ struct xhci_input_control_ctx { struct xhci_device_context_array { /* 64-bit device addresses; we only write 32-bit addresses */ __le64 dev_context_ptrs[MAX_HC_SLOTS]; + /* private xHCD pointers */ + dma_addr_t dma; }; /* TODO: write function to set the 64-bit device DMA address */ /* @@ -903,6 +906,8 @@ union xhci_trb { /* TRB type IDs */ typedef enum { + /* reserved, used as a software sentinel */ + TRB_NONE = 0, /* bulk, interrupt, isoc scatter/gather, and control data stage */ TRB_NORMAL = 1, /* setup stage for control transfers */ @@ -1003,6 +1008,7 @@ struct xhci_segment { union xhci_trb *trbs; /* private to HCD */ struct xhci_segment *next; + dma_addr_t dma; }; struct xhci_ring { @@ -1031,11 +1037,14 @@ struct xhci_erst_entry { struct xhci_erst { struct xhci_erst_entry *entries; unsigned int num_entries; + /* xhci->event_ring keeps track of segment dma addresses */ + dma_addr_t erst_dma_addr; /* Num entries the ERST can contain */ unsigned int erst_size; }; struct xhci_scratchpad { + void *scratchpad; u64 *sp_array; }; @@ -1134,8 +1143,6 @@ void xhci_hcd_stop(int index); /************************************************************* EXTENDED CAPABILITY DEFINITIONS *************************************************************/ -/* Up to 16 ms to halt an HC */ -#define XHCI_MAX_HALT_USEC (16*1000) /* HC not running - set to 1 when run/stop bit is cleared. */ #define XHCI_STS_HALT (1 << 0) @@ -1203,7 +1210,7 @@ void xhci_hcd_stop(int index); struct xhci_ctrl { struct usb_host host; - struct device_d *dev; + struct device *dev; struct xhci_hccr *hccr; /* R/O registers, not need for volatile */ struct xhci_hcor *hcor; struct xhci_doorbell_array *dba; @@ -1218,6 +1225,7 @@ struct xhci_ctrl { struct xhci_erst_entry entry[ERST_NUM_SEGS]; struct xhci_scratchpad *scratchpad; struct xhci_virt_device *devs[MAX_HC_SLOTS]; + struct usb_hub_descriptor hub_desc; void *bounce_buffer; int rootdev; }; @@ -1227,7 +1235,7 @@ static inline struct xhci_ctrl *to_xhci(struct usb_host *host) return container_of(host, struct xhci_ctrl, host); } -unsigned long trb_addr(struct xhci_segment *seg, union xhci_trb *trb); +dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb); struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_container_ctx *ctx); struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_ctrl *ctrl, @@ -1244,14 +1252,16 @@ void xhci_slot_copy(struct xhci_ctrl *ctrl, struct xhci_container_ctx *out_ctx); void xhci_setup_addressable_virt_dev(struct xhci_ctrl *ctrl, struct usb_device *udev, int hop_portnr); -void xhci_queue_command(struct xhci_ctrl *ctrl, u8 *ptr, +void xhci_queue_command(struct xhci_ctrl *ctrl, dma_addr_t addr, u32 slot_id, u32 ep_index, trb_type cmd); void xhci_acknowledge_event(struct xhci_ctrl *ctrl); -union xhci_trb *xhci_wait_for_event(struct xhci_ctrl *ctrl, trb_type expected); +#define XHCI_TIMEOUT_DEFAULT 5000 +union xhci_trb *xhci_wait_for_event(struct xhci_ctrl *ctrl, trb_type expected, + unsigned int timeout_ms); int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe, - int length, void *buffer); + int length, void *buffer, unsigned int timeout_ms); int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe, - struct devrequest *req, int length, void *buffer); + struct devrequest *req, int length, void *buffer, unsigned int timeout_ms); int xhci_check_maxpacket(struct usb_device *udev); void xhci_flush_cache(uintptr_t addr, u32 type_len); void xhci_inval_cache(uintptr_t addr, u32 type_len); |