fx2/firmware/fw/dscr.a51

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.module DEV_DSCR
; descriptor types
; same as setupdat.h
DSCR_DEVICE_TYPE=1
DSCR_CONFIG_TYPE=2
DSCR_STRING_TYPE=3
DSCR_INTERFACE_TYPE=4
DSCR_ENDPOINT_TYPE=5
DSCR_DEVQUAL_TYPE=6
; for the repeating interfaces
DSCR_INTERFACE_LEN=9
DSCR_ENDPOINT_LEN=7
; endpoint types
ENDPOINT_TYPE_CONTROL=0
ENDPOINT_TYPE_ISO=1
ENDPOINT_TYPE_BULK=2
ENDPOINT_TYPE_INT=3
.globl _dev_dscr, _dev_qual_dscr, _highspd_dscr, _fullspd_dscr, _dev_strings, _dev_strings_end
; These need to be in code memory. If
; they aren't you'll have to manully copy them somewhere
; in code memory otherwise SUDPTRH:L don't work right
.area DSCR_AREA (CODE)
_dev_dscr:
.db dev_dscr_end-_dev_dscr ; len
.db DSCR_DEVICE_TYPE ; type
.dw 0x0002 ; usb 2.0
.db 0xff ; class (vendor specific)
.db 0xff ; subclass (vendor specific)
.db 0xff ; protocol (vendor specific)
.db 64 ; packet size (ep0)
.dw 0xB404 ; vendor id
.dw 0x4223 ; product id
.dw 0x0100 ; version id
.db 1 ; manufacturure str idx
.db 2 ; product str idx
.db 0 ; serial str idx
.db 1 ; n configurations
dev_dscr_end:
_dev_qual_dscr:
.db dev_qualdscr_end-_dev_qual_dscr
.db DSCR_DEVQUAL_TYPE
.dw 0x0002 ; usb 2.0
.db 0xff
.db 0xff
.db 0xff
.db 64 ; max packet
.db 1 ; n configs
.db 0 ; extra reserved byte
dev_qualdscr_end:
_highspd_dscr:
.db highspd_dscr_end-_highspd_dscr ; dscr len ;; Descriptor length
.db DSCR_CONFIG_TYPE
; can't use .dw because byte order is different
.db (highspd_dscr_realend-_highspd_dscr) % 256 ; total length of config lsb
.db (highspd_dscr_realend-_highspd_dscr) / 256 ; total length of config msb
.db 1 ; n interfaces
.db 1 ; config number
.db 0 ; config string
.db 0x80 ; attrs = bus powered, no wakeup
.db 0x32 ; max power = 100ma
highspd_dscr_end:
; all the interfaces next
; NOTE the default TRM actually has more alt interfaces
; but you can add them back in if you need them.
; here, we just use the default alt setting 1 from the trm
.db DSCR_INTERFACE_LEN
.db DSCR_INTERFACE_TYPE
.db 0 ; index
.db 0 ; alt setting idx
.db 2 ; n endpoints
.db 0xff ; class
.db 0xff
.db 0xff
.db 0 ; string index
; endpoint 2 out
.db DSCR_ENDPOINT_LEN
.db DSCR_ENDPOINT_TYPE
.db 0x02 ; ep2 dir=OUT and address
.db ENDPOINT_TYPE_BULK ; type
.db 0x00 ; max packet LSB
.db 0x02 ; max packet size=512 bytes
.db 0x00 ; polling interval
; endpoint 6 in
.db DSCR_ENDPOINT_LEN
.db DSCR_ENDPOINT_TYPE
.db 0x86 ; ep6 dir=in and address
.db ENDPOINT_TYPE_BULK ; type
.db 0x00 ; max packet LSB
.db 0x02 ; max packet size=512 bytes
.db 0x00 ; polling interval
highspd_dscr_realend:
.even
_fullspd_dscr:
.db fullspd_dscr_end-_fullspd_dscr ; dscr len
.db DSCR_CONFIG_TYPE
; can't use .dw because byte order is different
.db (fullspd_dscr_realend-_fullspd_dscr) % 256 ; total length of config lsb
.db (fullspd_dscr_realend-_fullspd_dscr) / 256 ; total length of config msb
.db 1 ; n interfaces
.db 1 ; config number
.db 0 ; config string
.db 0x80 ; attrs = bus powered, no wakeup
.db 0x32 ; max power = 100ma
fullspd_dscr_end:
; all the interfaces next
; NOTE the default TRM actually has more alt interfaces
; but you can add them back in if you need them.
; here, we just use the default alt setting 1 from the trm
.db DSCR_INTERFACE_LEN
.db DSCR_INTERFACE_TYPE
.db 0 ; index
.db 0 ; alt setting idx
.db 2 ; n endpoints
.db 0xff ; class
.db 0xff
.db 0xff
.db 1 ; string index
; endpoint 2 out
.db DSCR_ENDPOINT_LEN
.db DSCR_ENDPOINT_TYPE
.db 0x02 ; ep2 dir=OUT and address
.db ENDPOINT_TYPE_BULK ; type
.db 0x40 ; max packet LSB
.db 0x00 ; max packet size=64 bytes
.db 0x00 ; polling interval
; endpoint 6 in
.db DSCR_ENDPOINT_LEN
.db DSCR_ENDPOINT_TYPE
.db 0x86 ; ep6 dir=in and address
.db ENDPOINT_TYPE_BULK ; type
.db 0x40 ; max packet LSB
.db 0x00 ; max packet size=64 bytes
.db 0x00 ; polling interval
fullspd_dscr_realend:
.even
_dev_strings:
; sample string
_string0:
.db string0end-_string0 ; len
.db DSCR_STRING_TYPE
.db 0x09, 0x04 ; 0x0409 is the language code for English. Possible to add more codes after this.
string0end:
; add more strings here
_string1:
.db _string1end-_string1 ;; len
.db DSCR_STRING_TYPE
.db 'D',00
.db 'E',00
.db 'B',00
.db 'U',00
.db 'G',00
.db ' ',00
.db 'F',00
.db 'W',00
_string1end:
_string2:
.db _string2end-_string2 ;; len
.db DSCR_STRING_TYPE
.db 'T',00
.db 'E',00
.db 'S',00
.db 'T',00
.db ' ',00
.db '1',00
.db '2',00
.db '3',00
_string2end:
_dev_strings_end:
.dw 0x0000 ; in case you wanted to look at memory between _dev_strings and _dev_strings_end