| #ifndef __LINUX_ETRAX_USB_H |
| #define __LINUX_ETRAX_USB_H |
| |
| #include <linux/types.h> |
| #include <linux/list.h> |
| |
| typedef struct USB_IN_Desc { |
| volatile __u16 sw_len; |
| volatile __u16 command; |
| volatile unsigned long next; |
| volatile unsigned long buf; |
| volatile __u16 hw_len; |
| volatile __u16 status; |
| } USB_IN_Desc_t; |
| |
| typedef struct USB_SB_Desc { |
| volatile __u16 sw_len; |
| volatile __u16 command; |
| volatile unsigned long next; |
| volatile unsigned long buf; |
| __u32 dummy; |
| } USB_SB_Desc_t; |
| |
| typedef struct USB_EP_Desc { |
| volatile __u16 hw_len; |
| volatile __u16 command; |
| volatile unsigned long sub; |
| volatile unsigned long next; |
| __u32 dummy; |
| } USB_EP_Desc_t; |
| |
| struct virt_root_hub { |
| int devnum; |
| void *urb; |
| void *int_addr; |
| int send; |
| int interval; |
| int numports; |
| struct timer_list rh_int_timer; |
| volatile __u16 wPortChange_1; |
| volatile __u16 wPortChange_2; |
| volatile __u16 prev_wPortStatus_1; |
| volatile __u16 prev_wPortStatus_2; |
| }; |
| |
| struct etrax_usb_intr_traffic { |
| int sleeping; |
| int error; |
| struct wait_queue *wq; |
| }; |
| |
| typedef struct etrax_usb_hc { |
| struct usb_bus *bus; |
| struct virt_root_hub rh; |
| struct etrax_usb_intr_traffic intr; |
| } etrax_hc_t; |
| |
| typedef enum { |
| STARTED, |
| NOT_STARTED, |
| UNLINK, |
| TRANSFER_DONE, |
| WAITING_FOR_DESCR_INTR |
| } etrax_usb_urb_state_t; |
| |
| |
| |
| typedef struct etrax_usb_urb_priv { |
| /* The first_sb field is used for freeing all SB descriptors belonging |
| to an urb. The corresponding ep descriptor's sub pointer cannot be |
| used for this since the DMA advances the sub pointer as it processes |
| the sb list. */ |
| USB_SB_Desc_t *first_sb; |
| /* The last_sb field referes to the last SB descriptor that belongs to |
| this urb. This is important to know so we can free the SB descriptors |
| that ranges between first_sb and last_sb. */ |
| USB_SB_Desc_t *last_sb; |
| |
| /* The rx_offset field is used in ctrl and bulk traffic to keep track |
| of the offset in the urb's transfer_buffer where incoming data should be |
| copied to. */ |
| __u32 rx_offset; |
| |
| /* Counter used in isochronous transfers to keep track of the |
| number of packets received/transmitted. */ |
| __u32 isoc_packet_counter; |
| |
| /* This field is used to pass information about the urb's current state between |
| the various interrupt handlers (thus marked volatile). */ |
| volatile etrax_usb_urb_state_t urb_state; |
| |
| /* Connection between the submitted urb and ETRAX epid number */ |
| __u8 epid; |
| |
| /* The rx_data_list field is used for periodic traffic, to hold |
| received data for later processing in the the complete_urb functions, |
| where the data us copied to the urb's transfer_buffer. Basically, we |
| use this intermediate storage because we don't know when it's safe to |
| reuse the transfer_buffer (FIXME?). */ |
| struct list_head rx_data_list; |
| } etrax_urb_priv_t; |
| |
| /* This struct is for passing data from the top half to the bottom half. */ |
| typedef struct usb_interrupt_registers |
| { |
| etrax_hc_t *hc; |
| __u32 r_usb_epid_attn; |
| __u8 r_usb_status; |
| __u16 r_usb_rh_port_status_1; |
| __u16 r_usb_rh_port_status_2; |
| __u32 r_usb_irq_mask_read; |
| __u32 r_usb_fm_number; |
| struct work_struct usb_bh; |
| } usb_interrupt_registers_t; |
| |
| /* This struct is for passing data from the isoc top half to the isoc bottom half. */ |
| typedef struct usb_isoc_complete_data |
| { |
| struct urb *urb; |
| struct work_struct usb_bh; |
| } usb_isoc_complete_data_t; |
| |
| /* This struct holds data we get from the rx descriptors for DMA channel 9 |
| for periodic traffic (intr and isoc). */ |
| typedef struct rx_data |
| { |
| void *data; |
| int length; |
| struct list_head list; |
| } rx_data_t; |
| |
| typedef struct urb_entry |
| { |
| struct urb *urb; |
| struct list_head list; |
| } urb_entry_t; |
| |
| /* --------------------------------------------------------------------------- |
| Virtual Root HUB |
| ------------------------------------------------------------------------- */ |
| /* destination of request */ |
| #define RH_INTERFACE 0x01 |
| #define RH_ENDPOINT 0x02 |
| #define RH_OTHER 0x03 |
| |
| #define RH_CLASS 0x20 |
| #define RH_VENDOR 0x40 |
| |
| /* Requests: bRequest << 8 | bmRequestType */ |
| #define RH_GET_STATUS 0x0080 |
| #define RH_CLEAR_FEATURE 0x0100 |
| #define RH_SET_FEATURE 0x0300 |
| #define RH_SET_ADDRESS 0x0500 |
| #define RH_GET_DESCRIPTOR 0x0680 |
| #define RH_SET_DESCRIPTOR 0x0700 |
| #define RH_GET_CONFIGURATION 0x0880 |
| #define RH_SET_CONFIGURATION 0x0900 |
| #define RH_GET_STATE 0x0280 |
| #define RH_GET_INTERFACE 0x0A80 |
| #define RH_SET_INTERFACE 0x0B00 |
| #define RH_SYNC_FRAME 0x0C80 |
| /* Our Vendor Specific Request */ |
| #define RH_SET_EP 0x2000 |
| |
| |
| /* Hub port features */ |
| #define RH_PORT_CONNECTION 0x00 |
| #define RH_PORT_ENABLE 0x01 |
| #define RH_PORT_SUSPEND 0x02 |
| #define RH_PORT_OVER_CURRENT 0x03 |
| #define RH_PORT_RESET 0x04 |
| #define RH_PORT_POWER 0x08 |
| #define RH_PORT_LOW_SPEED 0x09 |
| #define RH_C_PORT_CONNECTION 0x10 |
| #define RH_C_PORT_ENABLE 0x11 |
| #define RH_C_PORT_SUSPEND 0x12 |
| #define RH_C_PORT_OVER_CURRENT 0x13 |
| #define RH_C_PORT_RESET 0x14 |
| |
| /* Hub features */ |
| #define RH_C_HUB_LOCAL_POWER 0x00 |
| #define RH_C_HUB_OVER_CURRENT 0x01 |
| |
| #define RH_DEVICE_REMOTE_WAKEUP 0x00 |
| #define RH_ENDPOINT_STALL 0x01 |
| |
| /* Our Vendor Specific feature */ |
| #define RH_REMOVE_EP 0x00 |
| |
| |
| #define RH_ACK 0x01 |
| #define RH_REQ_ERR -1 |
| #define RH_NACK 0x00 |
| |
| /* Field definitions for */ |
| |
| #define USB_IN_command__eol__BITNR 0 /* command macros */ |
| #define USB_IN_command__eol__WIDTH 1 |
| #define USB_IN_command__eol__no 0 |
| #define USB_IN_command__eol__yes 1 |
| |
| #define USB_IN_command__intr__BITNR 3 |
| #define USB_IN_command__intr__WIDTH 1 |
| #define USB_IN_command__intr__no 0 |
| #define USB_IN_command__intr__yes 1 |
| |
| #define USB_IN_status__eop__BITNR 1 /* status macros. */ |
| #define USB_IN_status__eop__WIDTH 1 |
| #define USB_IN_status__eop__no 0 |
| #define USB_IN_status__eop__yes 1 |
| |
| #define USB_IN_status__eot__BITNR 5 |
| #define USB_IN_status__eot__WIDTH 1 |
| #define USB_IN_status__eot__no 0 |
| #define USB_IN_status__eot__yes 1 |
| |
| #define USB_IN_status__error__BITNR 6 |
| #define USB_IN_status__error__WIDTH 1 |
| #define USB_IN_status__error__no 0 |
| #define USB_IN_status__error__yes 1 |
| |
| #define USB_IN_status__nodata__BITNR 7 |
| #define USB_IN_status__nodata__WIDTH 1 |
| #define USB_IN_status__nodata__no 0 |
| #define USB_IN_status__nodata__yes 1 |
| |
| #define USB_IN_status__epid__BITNR 8 |
| #define USB_IN_status__epid__WIDTH 5 |
| |
| #define USB_EP_command__eol__BITNR 0 |
| #define USB_EP_command__eol__WIDTH 1 |
| #define USB_EP_command__eol__no 0 |
| #define USB_EP_command__eol__yes 1 |
| |
| #define USB_EP_command__eof__BITNR 1 |
| #define USB_EP_command__eof__WIDTH 1 |
| #define USB_EP_command__eof__no 0 |
| #define USB_EP_command__eof__yes 1 |
| |
| #define USB_EP_command__intr__BITNR 3 |
| #define USB_EP_command__intr__WIDTH 1 |
| #define USB_EP_command__intr__no 0 |
| #define USB_EP_command__intr__yes 1 |
| |
| #define USB_EP_command__enable__BITNR 4 |
| #define USB_EP_command__enable__WIDTH 1 |
| #define USB_EP_command__enable__no 0 |
| #define USB_EP_command__enable__yes 1 |
| |
| #define USB_EP_command__hw_valid__BITNR 5 |
| #define USB_EP_command__hw_valid__WIDTH 1 |
| #define USB_EP_command__hw_valid__no 0 |
| #define USB_EP_command__hw_valid__yes 1 |
| |
| #define USB_EP_command__epid__BITNR 8 |
| #define USB_EP_command__epid__WIDTH 5 |
| |
| #define USB_SB_command__eol__BITNR 0 /* command macros. */ |
| #define USB_SB_command__eol__WIDTH 1 |
| #define USB_SB_command__eol__no 0 |
| #define USB_SB_command__eol__yes 1 |
| |
| #define USB_SB_command__eot__BITNR 1 |
| #define USB_SB_command__eot__WIDTH 1 |
| #define USB_SB_command__eot__no 0 |
| #define USB_SB_command__eot__yes 1 |
| |
| #define USB_SB_command__intr__BITNR 3 |
| #define USB_SB_command__intr__WIDTH 1 |
| #define USB_SB_command__intr__no 0 |
| #define USB_SB_command__intr__yes 1 |
| |
| #define USB_SB_command__tt__BITNR 4 |
| #define USB_SB_command__tt__WIDTH 2 |
| #define USB_SB_command__tt__zout 0 |
| #define USB_SB_command__tt__in 1 |
| #define USB_SB_command__tt__out 2 |
| #define USB_SB_command__tt__setup 3 |
| |
| |
| #define USB_SB_command__rem__BITNR 8 |
| #define USB_SB_command__rem__WIDTH 6 |
| |
| #define USB_SB_command__full__BITNR 6 |
| #define USB_SB_command__full__WIDTH 1 |
| #define USB_SB_command__full__no 0 |
| #define USB_SB_command__full__yes 1 |
| |
| #endif |
