?? ex.lst
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CYASM Version 1.91
(C) 1998,1999,2000 Cypress Semiconductor Corp.
0000 ;***************************************************************************
0000 ;
0000 ; File: 637mouse.asm
0000 ; Version: 1.02
0000 ; Description: This code provides both PS/2 and USB support for a combi
0000 ; mouse
0000 ; Target: Cypress CY7C63743
0000 ;
0000 ; Overview
0000 ; On power up, the firmware starts executing code at address 0h.
0000 ; After some housekeeping tasks it will determine whether it is attached to
0000 ; a USB or a PS2 interface. From that, it will branch either to USB_Main or
0000 ; PS2_Main.
0000 ;
0000 ; PS2 Overview
0000 ; There are four main tasks:
0000 ; * PS2_Main
0000 ; * buttons (common to USB and PS2)
0000 ; * optics (common to USB and PS2)
0000 ; * PS2_DoCommand - processing of PS2 commands from host
0000 ;
0000 ; PS2_Main
0000 ; This routine initializes the PS2 variables, the IO ports, computes
0000 ; the (X,Y) coordinates of mouse movement, the Z-coordinate of wheel motion,
0000 ; if needed, determines which button has been pressed and sends out a mouse
0000 ; packet to a host.
0000 ;
0000 ; PS2_DoCommand
0000 ; When a host wants to send data to the mouse it will drive the
0000 ; SDATA line low. The PS2_Main task will continuously poll it and will clock
0000 ; in the data. The latter will be parsed and processed.
0000 ;
0000 ; USB Overview
0000 ; There are also four main tasks:
0000 ; * USB_Main
0000 ; * buttons (common to USB and PS2)
0000 ; * optics (common to USB and PS2)
0000 ; * suspend/resume
0000 ;
0000 ; USB_Main
0000 ; This routine initializes the USB variables, the IO ports, the mouse
0000 ; logic, and the data space. All USB communication occurs on an interrupt
0000 ; basis.
0000 ;
0000 ; Endpoint 0 is used to support Control Transfers and vendor specific
0000 ; requests. During enumeration setup commands are sent to endpoint1 to
0000 ; initialize the USB device and to extract configuration information from the
0000 ; device
0000 ;
0000 ; Endpoint 1 is used to transfer interrupt data back to the host.
0000 ; In this case we transfer data from the button and optics back to the host.
0000 ;
0000 ; Buttons
0000 ; The buttons are polled every millisecond inside the 1ms handler and
0000 ; processed in the main task loop.
0000 ;
0000 ; Optics
0000 ; The optics for mouse mouvement (X,Y,Z) are continuously polled
0000 ; and processed in the main task loop. The quadrature state of the optics
0000 ; tells us which direction the mouse is moving in. This data is sent back to
0000 ; the host as an offset from the last time the mouse was polled for data by
0000 ; the host. Further, for PS/2, the optics will be polled and processed every
0000 ; time a bit is sent out or received. This prevents missing any optics count
0000 ; during PS2 data transfer.
0000 ;
0000 ; Suspend/Resume
0000 ; Every millisecond, the USB is polled for activity. If no activity
0000 ; occurs for three milliseconds, then it is assumed that the USB is in
0000 ; suspend. Because this device supports remote wakeup, pressing the buttons
0000 ; or moving the mouse causes the firmware to send resume signalling back
0000 ; to the host to wakeup and resume operation.
0000 ;
0000 ; Endpoint1 packet definition
0000 ; Byte Usage
0000 ; 0 Button Data 7-3 Not used, 2=middle, 1=right, 0=left
0000 ; 1 horizontal displacement measured via the optics
0000 ; 2 vertical displacement measured via the optics
0000 ; 3 z-displacement (wheel) measured via the optics
0000 ;
0000 ; Revisions:
0000 ; 10/09/00: Original Version. Taken from u5combi.asm, v.1.03
0000 ;
0000 ; 1.00
0000 ; Fixed the Chapter 9 Test - device remote wakeup
0000 ;
0000 ; 1.01
0000 ; Fixed the suspend current requirements by explicitly writing SUSPEND
0000 ; and RUN bits of the processor status control register when going into
0000 ; suspend
0000 ;
0000 ; 1.02
0000 ; Convert TABS into spaces. No code change.
0000 ;
0000 ;***************************************************************************
0000 ;
0000 ; Copyright 2000 Cypress Semiconductor
0000 ; This code is provided by Cypress as a reference. Cypress makes no
0000 ; claims or warranties to this firmware's suitability for any
0000 ; application.
0000 ;
0000 ;***************************************************************************
0000
0000 CPU 63743
0000
0000 XPAGEON
0000
0000 ;**************************************
0000 ; Processor specific definitions
0000
0000 ep2DmaBuff: equ E8h
0000 ep2DmaBuff0: equ ep2DmaBuff+0
0000 ep2DmaBuff1: equ ep2DmaBuff+1
0000 ep2DmaBuff2: equ ep2DmaBuff+2
0000 ep2DmaBuff3: equ ep2DmaBuff+3
0000 ep2DmaBuff4: equ ep2DmaBuff+4
0000 ep2DmaBuff5: equ ep2DmaBuff+5
0000 ep2DmaBuff6: equ ep2DmaBuff+6
0000 ep2DmaBuff7: equ ep2DmaBuff+7
0000
0000 ep1DmaBuff: equ F0h
0000 ep1DmaBuff0: equ ep1DmaBuff+0
0000 ep1DmaBuff1: equ ep1DmaBuff+1
0000 ep1DmaBuff2: equ ep1DmaBuff+2
0000 ep1DmaBuff3: equ ep1DmaBuff+3
0000 ep1DmaBuff4: equ ep1DmaBuff+4
0000 ep1DmaBuff5: equ ep1DmaBuff+5
0000 ep1DmaBuff6: equ ep1DmaBuff+6
0000 ep1DmaBuff7: equ ep1DmaBuff+7
0000
0000 ep0DmaBuff: equ F8h
0000 ep0DmaBuff0: equ ep0DmaBuff+0
0000 ep0DmaBuff1: equ ep0DmaBuff+1
0000 ep0DmaBuff2: equ ep0DmaBuff+2
0000 ep0DmaBuff3: equ ep0DmaBuff+3
0000 ep0DmaBuff4: equ ep0DmaBuff+4
0000 ep0DmaBuff5: equ ep0DmaBuff+5
0000 ep0DmaBuff6: equ ep0DmaBuff+6
0000 ep0DmaBuff7: equ ep0DmaBuff+7
0000
0000
0000
0000 ;**************************************
0000 ; register definitions
0000
0000 PORT0: equ 00h ; GPIO data port 0
0000 PORT1: equ 01h ; GPIO data port 1
0000 PORT2: equ 02h ; GPIO data port 2
0000 SCLK: equ 20h
0000 DPLUS: equ 20h
0000 SDATA: equ 10h
0000 DMINUS: equ 10h
0000 XTALIN: equ 02h
0000 VREG: equ 01h
0000
0000 PORT0_INT: equ 04h ; Interrupt enable for Port 0
0000 PORT1_INT: equ 05h ; Interrupt enable for Port 1
0000 PORT0_INT_POLARITY: equ 06h ; Interrupt polarity for Port 0
0000 PORT1_INT_POLARITY: equ 07h ; Interrupt polarity for Port 1
0000
0000 PORT0_MODE0: equ 0Ah ; Mode Configuration 0 for Port 0
0000 PORT0_MODE1: equ 0Bh ; Mode Configuration 1 for Port 0
0000 PORT1_MODE0: equ 0Ch ; Mode Configuration 0 for Port 1
0000 PORT1_MODE1: equ 0Dh ; Mode Configuration 1 for Port 1
0000
0000 USB_ADDRESS: equ 10h ; USB device address
0000 ADDRESS_ENABLE: equ 80h
0000 ADDRESS_MASK: equ 7Fh
0000
0000 EP0_COUNT: equ 11h ; Endpoint 0 counter
0000 DATA_TOGGLE: equ 80h
0000 DATA_VALID: equ 40h
0000 BYTE_COUNT: equ 0Fh
0000
0000 EP0_MODE: equ 12h ; Endpoint 0 configuration
0000 EP0_SETUP: equ 80h
0000 EP0_IN: equ 40h
0000 EP0_OUT: equ 20h
0000 EP0_ACK: equ 10h
0000 MODE_MASK: equ 0Fh
0000
0000 EP1_COUNT: equ 13h ; Endpoint 1 counter
0000 EP1_MODE: equ 14h ; Endpoint 1 configuration
0000 EP2_COUNT: equ 15h ; Endpoint 2 counter
0000
0000 EP2_MODE: equ 16h ; Endpoint 2 configuration
0000 EP_STALL: equ 80h
0000 EP_ACK: equ 10h
0000
0000 USB_STATUS_CONTROL_REG: equ 1Fh ; USB upstream status and control
0000 PS2_PULLUP: equ 80h
0000 VREG_ENABLE: equ 40h
0000 USB_PS2_MODE: equ 20h
0000 BUS_ACTIVITY: equ 08h
0000 CONTROL2: equ 04h
0000 CONTROL1: equ 02h
0000 CONTROL0: equ 01h
0000
0000 NOT_FORCING: equ 00h
0000 FORCE_K: equ 01h
0000 FORCE_J: equ 02h
0000 FORCE_SE0: equ 03h
0000 FORCEBOTH_LOW: equ 04h
0000 FORCESDATA_LOW: equ 05h
0000 FORCESCLK_LOW: equ 06h
0000 FORCE_HIZ: equ 07h
0000
0000 GLOBAL_INTERRUPT_REG: equ 20h ; Global interrupt enable
0000 WAKEUP_INT: equ 80h
0000 GPIO_INT: equ 40h
0000 CAPTUREB_INT: equ 20h
0000 CAPTUREA_INT: equ 10h
0000 SPI_INT: equ 08h
0000 1MS_INT: equ 04h
0000 128US_INT: equ 02h
0000 USB_RESET_INT: equ 01h
0000
0000 ENDPOINT_INT: equ 21h ; USB endpoint interrupt enable
0000 EP2_INT: equ 04h
0000 EP1_INT: equ 02h
0000 EP0_INT: equ 01h
0000
0000 TIMER_LSB: equ 24h ; Lower eight bits of timer
0000 TIMER_MSB: equ 25h ; Upper six bits of timer
0000 WATCHDOG_REG: equ 26h ; Clear watchdog Timer
0000
0000 CAPTUREA_RISING: equ 40h ; Capture timer A rising register
0000 CAPTUREA_FALLING: equ 41h ; Capture timer A falling register
0000 CAPTUREB_RISING: equ 42h ; Capture timer B rising register
0000 CAPTUREB_FALLING: equ 43h ; Capture timer B falling register
0000
0000 CAPTURE_CONFIG: equ 44h ; Capture timer configuration register
0000 FIRST_EDGE_HOLD: equ 80h
0000 PRESCALE: equ 70h
0000 PRESCALE2: equ 40h
0000 PRESCALE1: equ 20h
0000 PRESCALE0: equ 10h
0000 CAPTUREB_FALL_INT: equ 08h
0000 CAPTUREB_RISE_INT: equ 04h
0000 CAPTUREA_FALL_INT: equ 02h
0000 CAPTUREA_RISE_INT: equ 01h
0000
0000 CAPTURE_STATUS: equ 45h ; Capture timer status register
0000 CAPTUREB_FALL_EVENT: equ 08h
0000 CAPTUREB_RISE_EVENT: equ 04h
0000 CAPTUREA_FALL_EVENT: equ 02h
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