📄 usb_std.lis
字号:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_04 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_04
0000 USB_CB_d2h_std_ifc_04:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_05 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_05
0000 USB_CB_d2h_std_ifc_05:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_06 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_06
USB_CB_d2h_std_ifc_06:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_07 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_07
0000 USB_CB_d2h_std_ifc_07:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_08 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_08
0000 USB_CB_d2h_std_ifc_08:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_09 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_09
0000 USB_CB_d2h_std_ifc_09:
ENDIF
IF (USB_CB_SRC_d2h_std_ifc_10 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ifc_10
USB_CB_d2h_std_ifc_10:
ENDIF
; d2h_std_ifc
IF (USB_CB_SRC_h2d_std_ifc_00 & USB_NOT_SUPPORTED)
export USB_CB_h2d_std_ifc_00
0000 USB_CB_h2d_std_ifc_00:
ENDIF
; d2h_std_ep
IF (USB_CB_SRC_d2h_std_ep_00 & USB_NOT_SUPPORTED)
export USB_CB_d2h_std_ep_00
USB_CB_d2h_std_ep_00:
ENDIF
; h2d_std_ep
IF (USB_CB_SRC_h2d_std_ep_00 & USB_NOT_SUPPORTED)
export USB_CB_h2d_std_ep_00
0000 USB_CB_h2d_std_ep_00:
ENDIF
IF (USB_CB_SRC_h2d_std_ep_01 & USB_NOT_SUPPORTED)
export USB_CB_h2d_std_ep_01
USB_CB_h2d_std_ep_01:
ENDIF
IF (USB_CB_SRC_h2d_std_ep_02 & USB_NOT_SUPPORTED)
export USB_CB_h2d_std_ep_02
0000 USB_CB_h2d_std_ep_02:
ENDIF
IF (USB_CB_SRC_h2d_std_ep_03 & USB_NOT_SUPPORTED)
export USB_CB_h2d_std_ep_03
USB_CB_h2d_std_ep_03:
ENDIF
export USB_Not_Supported
export _USB_Not_Supported
0000 USB_Not_Supported:
0000 _USB_Not_Supported:
0000 5000 MOV A, 0 ; Count 0
0002 5703 MOV X, USB_MODE_STALL_IN_OUT ; Stall the request
0004 7D0000 LJMP USB_EP0_UPD_MODE_EXIT
0007 ;-----------------------------------------------------------------------------
0007 ; FUNCTION NAME: USB_CB_d2h_std_dev_00
0007 ;
0007 ; DESCRIPTION: Get Device Status
0007 ;
0007 ;****************************************************************
0007 ; STANDARD DEVICE IN REQUEST: Get_Device_Status
0007 ;****************************************************************
0007 ;
0007 ; bmRequestType : (IN | STANDARD | DEVICE) = 80h
0007 ; bRequest : GET_STATUS = 00h
0007 ; wValue : RESERVED = 0000h
0007 ; wIndex : RESERVED = 0000h
0007 ; wLength : SIZEOF_ENDPOINT_STATUS = 0002h
0007 ;
0007 ; The GET_DEVICE_STATUS request returns the current device status.
0007 ;
0007 ;****************************************************************
0007 ;-----------------------------------------------------------------------------
0007 ;
0007 ; ARGUMENTS:
0007 ;
0007 ; RETURNS:
0007 ;
0007 ; SIDE EFFECTS: REGISTERS ARE VOLATILE: THE A AND X REGISTERS MAY BE MODIFIED!
0007 ;
0007 ; THEORY of OPERATION or PROCEDURE:
0007 ;
0007 ;-----------------------------------------------------------------------------
IF (USB_CB_SRC_d2h_std_dev_00 & USB_UM_SUPPLIED)
0007 .LITERAL
0007 GetStatusTransferDescrTable:
0007 00 DB ((1) - 1) ; Number of table entries - 1
0008 01 DB USB_DS_RAM ; Data source (USB_DS_*)
0009 0002 DW 2 ; Transfer size
000B 0000 DW USB_TransferBuffer ; Data source address
000D 0000 DW NULL_PTR ; Transfer Completion Status Block Address
000F DE DB 0xde ; Reserved
0010 .ENDLITERAL
export USB_CB_d2h_std_dev_00
0010 USB_CB_d2h_std_dev_00:
0010 550000 MOV [USB_t2], 0 ; Use the UM temp var--Selector
0013
0013 550100 MOV [USB_TransferBuffer+1], 0 ; Use the UM Transfer Buffer
0016 5F0000 MOV [USB_TransferBuffer], [USB_DeviceStatus]
0019
0019 5007 MOV A,>GetStatusTransferDescrTable ; Get the ROM Address MSB
001B 5707 MOV X,<GetStatusTransferDescrTable ; Get the ROM Address LSB
001D 8267 JMP USB_GetTableEntry_Local_Std
ENDIF
;-----------------------------------------------------------------------------
; FUNCTION NAME: USB_CB_d2h_std_dev_06
;
; DESCRIPTION: Get Device Descriptor
;
;****************************************************************
; STANDARD DEVICE IN REQUEST: Get_Device_Descriptor
;****************************************************************
;
; bmRequestType : (IN | STANDARD | DEVICE) = 80h
; bRequest : GET_DESCRIPTOR = 06h
; wValue : DESCRIPTOR TYPE | INDEX = xxxxh
; wIndex : ZERO or LANG_ID = xxxxh
; wLength : SIZEOF_DESCRIPTOR = --xxh
;
; The GET_DEVICE_DESCRIPTOR returns the specified descriptor if
; the descriptor exists.
;
; The upper byte of wValue contains the descriptor type and
; the lower byte contains the descriptor index. wIndex
; contains either 0000h or the Language ID. wLength contains
; the descriptor length. The actual descriptor information is
; transferred in subsequent data packets.
;
;****************************************************************
;
;-----------------------------------------------------------------------------
;
; ARGUMENTS:
;
; RETURNS:
;
; SIDE EFFECTS: REGISTERS ARE VOLATILE: THE A AND X REGISTERS MAY BE MODIFIED!
;
; THEORY of OPERATION or PROCEDURE:
;
;-----------------------------------------------------------------------------
IF (USB_CB_SRC_d2h_std_dev_06 & USB_UM_SUPPLIED)
export USB_CB_d2h_std_dev_06
001F USB_CB_d2h_std_dev_06:
001F ;-----------------------------------------------------------------------------
001F ; Dispatch to the proper handler
001F ;-----------------------------------------------------------------------------
001F 5D53 MOV A, REG[USB_EP0DATA+wValueHi] ; Get the descrptor type
0021 64 ASL A ; Make it into a offset
0022 3908 CMP A, GET_DESCR_DISPATCH_SIZE ; Validity check
0024 DFDB JNC USB_Not_Supported
0026
0026 E001 JACC GET_DESCR_DISPATCH
0028
0028 GET_DESCR_DISPATCH:
0028 8FD7 JMP USB_Not_Supported ; Invalid
002A 8028 JMP USB_SendDeviceDescr ; Device Descriptor
002C 8003 JMP USB_SendConfigDescr ; Configuration Descriptor
IF USB_bNumStringDescrs ; Number of String Descriptor defined with the Wizard
002E 8034 JMP USB_SendStringDescr ; String Descriptor
ELSE
JMP USB_Not_Supported ; Not supported if we don't have
; any String Descriptor
ENDIF
0030 GET_DESCR_DISPATCH_END:
0008 GET_DESCR_DISPATCH_SIZE: EQU (GET_DESCR_DISPATCH_END - GET_DESCR_DISPATCH)
0030 ;-----------------------------------------------------------------------------
0030 ; Configuration Descriptor Handler
0030 ;-----------------------------------------------------------------------------
0030 USB_SendConfigDescr:
0030 9000 CALL USB_GET_DEVICE_TABLE_ENTRY
0032 4B SWAP A, X
0033 0102 ADD A, 2 ; We want the pointer to the descriptor table (second entry)
0035 4B SWAP A, X
0036 0900 ADC A, 0 ; Don't forget the carry
0038 550000 MOV [USB_t2], USB_t1 ; Set up the destination
003B 9000 CALL USB_GETWORD ; Get the pointer
003D
003D 5100 MOV A, [USB_t1] ; Pointer MSB
003F 5801 MOV X, [USB_t1+1] ; Pointer LSB
0041
0041 08 PUSH A ; Save the MSB
0042
0042 5D52 MOV A, REG[USB_EP0DATA+wValueLo] ; Get the descrptor index
0044 5300 MOV [USB_t2], A ; Use the UM temp var--Selector
0046 18 POP A ; Need the MSB for the range check
0047 08 PUSH A ; Save the MSB for after the range check
0048 28 ROMX ; First entry is the table size (only a byte)
0049 3A00 CMP A, [USB_t2] ; Range check
004B D004 JNC .range_ok
004D
004D 18 POP A ; Fix the stack
004E 8FB1 JMP USB_Not_Supported
0050
0050 .range_ok:
0050 18 POP A ; Get the MSB back
0051 8233 JMP USB_GetTableEntry_Local_Std
0053 ;-----------------------------------------------------------------------------
0053 ; Device Descriptor Handler
0053 ;-----------------------------------------------------------------------------
0053 USB_SendDeviceDescr:
0053 5F0000 MOV [USB_t2], [USB_bCurrentDevice] ; Use the UM temp var--Selector
0056 5000 MOV A,>USB_DEVICE_DESCR_TABLE ; Get the ROM Address MSB
0058 5700 MOV X,<USB_DEVICE_DESCR_TABLE ; Get the ROM Address LSB
005A 28 ROMX ; First entry is the table size (only a byte)
005B 3A00 CMP A, [USB_t2] ⌨️ 快捷键说明
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