.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 'M',00
	.db 'B',00
	.db '',00
	.db 'M',00
	.db 'O',00
	.db 'D',00
	.db 'U',00
	.db 'L',00
	.db 'E',00
_string1end:
_string2:
	.db _string2end-_string2 ;; len
	.db DSCR_STRING_TYPE
	.db 'V',00
	.db 'E',00
	.db 'R',00
	.db 'S',00
	.db 'I',00
	.db 'O',00
	.db 'N',00
	.db '',00
	.db 'X',00
_string2end:

_dev_strings_end:
    .dw 0x0000  ; in case you wanted to look at memory between _dev_strings and _dev_strings_end