pcsx2/fps2bios/kernel/iopload/libkernel/iop_usbd.s

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/*
_____ ___ ____
____| | ____| PSX2 OpenSource Project
| ___| |____ (C)2002, Pedro J. Cabrera (rc5stint@yahoo.com)
------------------------------------------------------------------------
iop_usbd.s USB Driver Import functions.
Figured out from IRX files with symbol tables in Unreal Tournament
and JamPak demo discs.
*/
.text
.set noreorder
.local usbd_stub
usbd_stub: # Module Import Information
.word 0x41e00000 # Import Tag
.word 0x00000000 # Minor Version?
.word 0x00000101 # Major Version?
.ascii "usbd\0\0\0\0" # Library ID
.align 2
/* initialize USBD.IRX
* Note: UsbInit is automatically called first whenever USBD.IRX is loaded.
* There should never be a need to reinitialize the driver. In fact, it may
* not even work. But I'm providing the function hook anyhow. <shrug>
*/
.globl UsbInit
UsbInit:
j $31
li $0, 0x00
/*
* These two functions are used to register and unregister device drivers for
* listening for USB bus events. The events are device probe, connect, and disconnect.
*/
# register a USB device driver
.globl UsbRegisterDriver
UsbRegisterDriver:
j $31
li $0, 0x04
# unregister a USB device driver
.globl UsbUnregisterDriver
UsbUnregisterDriver:
j $31
li $0, 0x05
/*
* This function is used to get the static descriptors for the specific USB
* device. These descriptors identify the device uniquely and help determine
* what type of device we are dealing with, and what its capabilities and
* features are.
*/
.globl UsbGetDeviceStaticDescriptor
UsbGetDeviceStaticDescriptor:
j $31
li $0, 0x06
/*
* These two functions are used to assign relevant data to a specific device.
* The type of data is entirely up to the caller. For example, a particular
* USB device driver may store configuration data for each specific device
* under its control.
*/
# set the private data pointer for a device
.globl UsbSetDevicePrivateData
UsbSetDevicePrivateData:
j $31
li $0, 0x07
# get the private data pointer for a device
.globl UsbGetDevicePrivateData
UsbGetDevicePrivateData:
j $31
li $0, 0x08
/*
* This function returns an endpoint ID for the device ID and endpoint descriptor
* passed in. This endpoint ID is then used when transfering data to the device,
* and to close the endpoint.
*/
.globl UsbOpenEndpoint
UsbOpenEndpoint:
j $31
li $0, 0x09
# close an endpoint
.globl UsbCloseEndpoint
UsbCloseEndpoint:
j $31
li $0, 0x0A
/*
* This function is used for all types of USB data transfers. Which type of
* transfer is determined by the parameters that are passed in. The types are:
* control, isochronous, interrupt, and bulk transfers. More details can be
* found in usbd.h.
*/
.globl UsbTransfer
UsbTransfer:
j $31
li $0, 0x0B
.globl UsbOpenBulkEndpoint
UsbOpenBulkEndpoint:
j $31
li $0, 0x0C
.word 0
.word 0