counter.lst

驱动程序开发基础教程

00DA            
00DA              USBEventEP0SetupTargetDeviceIN:
00DA 16 80 [04]     cmp  a,USBRqstTargetDevice | USBRqstTypeDirection
00DC A1 18 [05]     jz   USBEventEP0SetupGetDescriptor  ; Yes
00DE            
00DE              USBEventEP0SetupTargetInterfaceIN:
00DE 16 81 [04]     cmp  a,USBRqstTargetInterface | USBRqstTypeDirection
00E0 A0 B8 [05]     jz   USBEventEP0Stall               ; Yes Oops! We don't have an interface.
00E2            
00E2              USBEventEP0SetupTargetEndpointIN:
00E2 16 82 [04]     cmp  a,USBRqstTargetEndPoint | USBRqstTypeDirection
00E4 A0 B8 [05]     jz   USBEventEP0Stall               ; Yes
00E6            
00E6                ; Vendor specific commands
00E6              USBEventEP0SetupTargetVendorIN_OUT:
00E6                ; Check request (IN packet OK, OUT packet ERR)
00E6 1A 70 [06]     mov  a,[USBEndP0FIFO_0]
00E8 10 C2 [04]     and  a,USBRqstTypeVendor | USBRqstTargetEndPoint | USBRqstTypeDirection
00EA 16 C2 [04]     cmp  a,USBRqstTypeVendor | USBRqstTargetEndPoint | USBRqstTypeDirection
00EC A2 3C [05]     jz   USBEventEP0VendorRqst
00EE            
00EE                ; Unsupported request !!!
00EE 80 B8 [05]     jmp  USBEventEP0Stall               ; Oops! We don't support whatever
00F0                                                    ;   request was made.
00F0            
00F0            ;//$PAGE
00F0            ;********************************************************
00F0            ; USBEventEP0SetupIsSet()
00F0            ; @func End point event SETUP to set address.
00F0            ; @devnote Runs in interrupt enabled context.
00F0            ;********************************************************
00F0            USBEventEP0SetupIsSetAddress:
00F0            
00F0                ; Set device address?
00F0 1A 71 [06]     mov  a,[USBRqstMessage]
00F2 16 05 [04]     cmp  a,USBRqstSetAddress
00F4 A0 FE [05]     jz   USBEventEP0SetupSetAddress         ; Yes
00F6            
00F6                ; Set device configuration?
00F6 1A 71 [06]     mov  a,[USBRqstMessage]
00F8 16 09 [04]     cmp  a,USBRqstSetConfiguration
00FA A1 08 [05]     jz   USBEventEP0SetupSetConfig          ; Yes
00FC            
00FC                ; Unsupported set request !!!
00FC 80 B8 [05]     jmp  USBEventEP0Stall                   ; No. Stall
00FE            
00FE            ;********************************************************
00FE            ; USBEventEP0SetupSetAddress()
00FE            ; @func End point zero event SETUP to set address.
00FE            ; @devnote Runs in interrupt enabled context.
00FE            ; @comm
00FE            ; The status token of the SetAddress is an IN. So, we send status manually.
00FE            ;********************************************************
00FE            USBEventEP0SetupSetAddress:
00FE            
00FE                ; Send ACK
00FE 20    [04]         NOP
00FF 1F    [04]         XPAGE
0100 92 23 [10]     call USBSendACK
0102                ; Now that we have been acknowleged, we actually set the address.
0102                ; This is different from all other commands which execute first
0102                ;   and then acknowlege (_________________)
0102            
0102                ; Set Address
0102 1A 72 [06]     mov  a,[USBRqstWordValueLo]
0104 2A 12 [05]     iowr USBDeviceAddress
0106            
0106                ; Done
0106 80 B4 [05]     jmp  USBEventEP0End
0108            
0108            ;********************************************************
0108            ; USBEventEP0SetupSetConfig()
0108            ; @func End point zero event SETUP to Set Configuration.
0108            ; @devnote Runs in interrupt enabled context.
0108            ; 1
0108            ;  set enumerated (gbSysEnumerated) state, 
0108            ;  enable GPIO (and EP1, if appropriate)
0108            ;  Enable P0 and P1
0108            ; 0
0108            ;  Reset enumerated (gbSysEnumerated) state, 
0108            ;  Turn off LED
0108            ;  Reset variables
0108            ;  Disable GPIO and EP1
0108            ;  Disable dallas chip and P0 and P1
0108            ;********************************************************
0108            USBEventEP0SetupSetConfig:
0108            
0108                ; Enumerated !
0108                ; Write a 0 to the LED on P13 to turn it on
0108 19 F7 [04]     mov a,~(LED_ON)
010A 2A 01 [05]     iowr SysPort1
010C            
010C 19 10 [04]     mov  a,10h
010E 2A 11 [05]     iowr USBEndP1TxConfig;NAK
0110            
0110                ; enable all appropriate irq's
0110 19 5C [04]     mov  a,SysIntTimer1024us | SysIntGPIO | SysIntUSBEndP0 | SysIntUSBEndP1
0112 31 20 [05]     mov  [gbSysInterruptMask],a
0114            
0114                ; Send ACK
0114 92 23 [10]     call USBSendACK
0116 80 B4 [05]     jmp  USBEventEP0End
0118            
0118            ;//$PAGE
0118            ;********************************************************
0118            ; USBEventEP0SetupGetDescriptor()
0118            ; @func End point zero event SETUP to Get Descriptor.
0118            ; @devnote Runs in interrupt enabled context.
0118            ;********************************************************
0118            USBEventEP0SetupGetDescriptor:
0118            
0118                ; Get descriptor type
0118 1A 73 [06]     mov  a,[USBRqstWordValueHi]
011A            
011A              USBEventEP0SetupGetDescriptorDevice:
011A                ; Device Descriptor?
011A 16 01 [04]     cmp  a,USBDescriptorTypeDevice
011C B1 2C [05]     jnz  USBEventEP0SetupGetDescriptorConfig    ; No
011E            
011E                ;*********************************************
011E                ; Get Device Descriptor Event
011E                ;*********************************************
011E                ; Descriptor pointer
011E 19 00 [04]     mov  a,(USBDeviceDescription -USBSendROMBufferBase)
0120 31 2A [05]     mov  [gbUSBSendBuffer],a
0122            
0122                ; Descriptor size
0122 19 12 [04]     mov  a,12h                  ;[USBDeviceDescription]
0124 31 29 [05]     mov  [gbUSBSendBytes],a
0126            
0126                ; Check request size field
0126 91 B6 [10]     call USBSendDescriptorCheckLength
0128            
0128                ; Send buffer
0128 91 C7 [10]     call USBSendROMBuffer
012A 80 B4 [05]     jmp  USBEventEP0End
012C            
012C              USBEventEP0SetupGetDescriptorConfig:
012C                ; Configuration Descriptor?
012C 16 02 [04]     cmp  a,USBDescriptorTypeConfig
012E B1 42 [05]     jnz  USBEventEP0SetupGetDescriptorString    ; No
0130            
0130                ;*********************************************
0130                ; Get Configuration Descriptor Event
0130                ;*********************************************
0130                ; Descriptor pointer
0130 19 12 [04]     mov  a,(USBConfigurationDescription -USBSendROMBufferBase)
0132 31 2A [05]     mov  [gbUSBSendBuffer],a
0134            
0134                ; Descriptor size
0134 19 09 [04]     mov  a,09h                  ;[USBConfigurationDescription]
0136 01 09 [04]     add  a,09h                  ;[USBInterfaceDescription]
0138 01 07 [04]     add  a,07h                  ;[USBEndPointDescriptionInt]
013A 31 29 [05]     mov  [gbUSBSendBytes],a
013C            
013C                ; Check request size field
013C 91 B6 [10]     call USBSendDescriptorCheckLength
013E            
013E                ; Send buffer
013E 91 C7 [10]     call USBSendROMBuffer
0140 80 B4 [05]     jmp  USBEventEP0End
0142            
0142              USBEventEP0SetupGetDescriptorString:
0142                ; Get String Descriptor?
0142 16 03 [04]     cmp  a,USBDescriptorTypeString
0144 B1 B4 [05]     jnz  USBEventEP0SetupGetDescriptorEnd       ; No
0146            
0146                ;*********************************************
0146                ; Get String Descriptor Event
0146                ;*********************************************
0146            
0146                ; Get string descriptor index
0146 1A 72 [06]     mov  a,[USBRqstWordValueLo]
0148            
0148              USBEventEP0SetupGetDescriptorString0:
0148 16 00 [04]     cmp  a,0h
014A B1 5A [05]     jnz  USBEventEP0SetupGetDescriptorString1   ; No
014C            
014C                ;*********************************************
014C                ; Get String Language(s) Descriptor Event
014C                ;*********************************************
014C                ; Descriptor pointer
014C 19 2B [04]     mov  a,(USBStringLanguageDescription -USBSendROMBufferBase)
014E 31 2A [05]     mov  [gbUSBSendBuffer],a
0150            
0150                ; Descriptor size
0150 19 04 [04]     mov  a,4h                   ;[USBStringLanguageDescription]
0152 31 29 [05]     mov  [gbUSBSendBytes],a
0154            
0154                ; Check request size field
0154 91 B6 [10]     call USBSendDescriptorCheckLength
0156            
0156                ; Send buffer
0156 91 C7 [10]     call USBSendROMBuffer
0158 80 B4 [05]     jmp  USBEventEP0End
015A            
015A              USBEventEP0SetupGetDescriptorString1:
015A 16 01 [04]     cmp  a,1
015C B1 6C [05]     jnz  USBEventEP0SetupGetDescriptorString2   ; No
015E            
015E                ;*********************************************
015E                ; Get String 1 Descriptor Event
015E                ;*********************************************
015E                ; Descriptor pointer
015E 19 2F [04]     mov  a,(USBStringDescription1 -USBSendROMBufferBase)
0160 31 2A [05]     mov  [gbUSBSendBuffer],a
0162            
0162                ; Descriptor size
0162 19 10 [04]     mov  a,10h                  ;[USBStringDescription1]
0164 31 29 [05]     mov  [gbUSBSendBytes],a
0166            
0166                ; Check request size field
0166 91 B6 [10]     call USBSendDescriptorCheckLength
0168            
0168                ; Send buffer
0168 91 C7 [10]     call USBSendROMBuffer
016A 80 B4 [05]     jmp  USBEventEP0End
016C            
016C              USBEventEP0SetupGetDescriptorString2:
016C 16 02 [04]     cmp  a,2
016E B1 7E [05]     jnz  USBEventEP0SetupGetDescriptorString3   ; No
0170            
0170                ;*********************************************
0170                ; Get String 2 Descriptor Event
0170                ;*********************************************
0170                ; Descriptor pointer
0170 19 3F [04]     mov  a,(USBStringDescription2 -USBSendROMBufferBase)
0172 31 2A [05]     mov  [gbUSBSendBuffer],a
0174            
0174                ; Descriptor size
0174 19 10 [04]     mov  a,10h                  ;[USBStringDescription2]
0176 31 29 [05]     mov  [gbUSBSendBytes],a
0178            
0178                ; Check request size field
0178 91 B6 [10]     call USBSendDescriptorCheckLength
017A            
017A                ; Send buffer
017A 91 C7 [10]     call USBSendROMBuffer
017C 80 B4 [05]     jmp  USBEventEP0End
017E            
017E              USBEventEP0SetupGetDescriptorString3:
017E 16 03 [04]     cmp  a,3
0180 B1 90 [05]     jnz  USBEventEP0SetupGetDescriptorString4   ; No
0182            
0182                ;*********************************************
0182                ; Get String 3 Descriptor Event
0182                ;*********************************************
0182                ; Descriptor pointer
0182 19 4F [04]     mov  a,(USBStringDescription3 -USBSendROMBufferBase)
0184 31 2A [05]     mov  [gbUSBSendBuffer],a
0186            
0186                ; Descriptor size
0186 19 0A [04]     mov  a,0Ah                  ;[USBStringDescription3]
0188 31 29 [05]     mov  [gbUSBSendBytes],a
018A            
018A                ; Check request size field
018A 91 B6 [10]     call USBSendDescriptorCheckLength
018C            
018C                ; Send buffer
018C 91 C7 [10]     call USBSendROMBuffer
018E 80 B4 [05]     jmp  USBEventEP0End
0190            
0190              USBEventEP0SetupGetDescriptorString4:
0190 16 04 [04]     cmp  a,4
0192 B1 A2 [05]     jnz  USBEventEP0SetupGetDescriptorString5   ; No
0194            
0194                ;*********************************************
0194                ; Get String 4 Descriptor Event
0194                ;*********************************************
0194                ; Descriptor pointer
0194 19 59 [04]     mov  a,(USBStringDescription4 -USBSendROMBufferBase)
0196 31 2A [05]     mov  [gbUSBSendBuffer],a
0198            
0198                ; Descriptor size
0198 19 28 [04]     mov  a,28h                  ;[USBStringDescription4]
019A 31 29 [05]     mov  [gbUSBSendBytes],a
019C            
019C                ; Check request size field
019C 91 B6 [10]     call USBSendDescriptorCheckLength
019E            
019E                ; Send buffer