diff options
Diffstat (limited to 'drivers/usb/host/hc_crisv10.h')
| -rw-r--r-- | drivers/usb/host/hc_crisv10.h | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/drivers/usb/host/hc_crisv10.h b/drivers/usb/host/hc_crisv10.h new file mode 100644 index 0000000..62f7711 --- /dev/null +++ b/drivers/usb/host/hc_crisv10.h @@ -0,0 +1,289 @@ +#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 |