USB: new API for drivers to query device characteristics
git-svn-id: svn://kolibrios.org@3745 a494cfbc-eb01-0410-851d-a64ba20cac60
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CleverMouse
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ec30458543
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@ -697,6 +697,36 @@ endl
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ret
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endp
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; Part of API for drivers, see documentation for USBGetParam.
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proc usb_get_param
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virtual at esp
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dd ? ; return address
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.pipe dd ?
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.param dd ?
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end virtual
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mov edx, [.param]
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mov ecx, [.pipe]
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mov eax, [ecx+usb_pipe.DeviceData]
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test edx, edx
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jz .get_device_descriptor
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dec edx
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jz .get_config_descriptor
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dec edx
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jz .get_speed
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or eax, -1
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ret 8
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.get_device_descriptor:
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add eax, usb_device_data.DeviceDescriptor
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ret 8
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.get_config_descriptor:
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movzx ecx, [eax+usb_device_data.DeviceDescrSize]
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lea eax, [eax+ecx+usb_device_data.DeviceDescriptor]
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ret 8
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.get_speed:
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movzx eax, [eax+usb_device_data.Speed]
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ret 8
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endp
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; Initialize software part of usb_gtd. Called from controller-specific code
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; somewhere in AllocTransfer with eax -> next (inactive) usb_gtd,
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; ebx -> usb_pipe, ebp frame from call to AllocTransfer with [.td] ->
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@ -100,6 +100,7 @@ iglobal
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szUSBClosePipe db 'USBClosePipe',0
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szUSBNormalTransferAsync db 'USBNormalTransferAsync',0
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szUSBControlTransferAsync db 'USBControlTransferAsync',0
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szUSBGetParam db 'USBGetParam',0
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szNetRegDev db 'NetRegDev',0
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szNetUnRegDev db 'NetUnRegDev',0
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@ -196,6 +197,7 @@ kernel_export:
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dd szUSBClosePipe , usb_close_pipe
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dd szUSBNormalTransferAsync, usb_normal_transfer_async
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dd szUSBControlTransferAsync, usb_control_async
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dd szUSBGetParam , usb_get_param
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dd szNetRegDev , NET_add_device
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dd szNetUnRegDev , NET_remove_device
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@ -60,8 +60,7 @@ called several times with the same 'configdescr' and different 'interfacedescr'.
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The returned value NULL means that the initialization has failed.
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Any other value means that configuration was successful; the kernel does not
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try to interpret the value. It can be, for example, pointer to the internal
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data allocated with Kmalloc, or index in some internal table. Remember that
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Kmalloc() is NOT stdcall, it destroys ebx.
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data allocated with Kmalloc, or index in some internal table.
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The driver can implement the function
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@ -173,22 +172,20 @@ The parameter 'length' is the number of bytes transferred. For
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control transfers, this includes 8 bytes from SETUP stage, so
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0 means that SETUP stage failed and 'size'+8 means full transfer.
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The parameter 'status' is nonzero if an error occured.
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USB_STATUS_OK = 0 ; no error
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USB_STATUS_CRC = 1 ; CRC error
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USB_STATUS_BITSTUFF = 2 ; bit stuffing violation
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USB_STATUS_TOGGLE = 3 ; data toggle mismatch
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USB_STATUS_STALL = 4 ; device returned STALL
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USB_STATUS_NORESPONSE = 5 ; device not responding
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USB_STATUS_PIDCHECK = 6 ; invalid PID check bits
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USB_STATUS_WRONGPID = 7 ; unexpected PID value
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USB_STATUS_OVERRUN = 8 ; too many data from endpoint
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USB_STATUS_UNDERRUN = 9 ; too few data from endpoint
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USB_STATUS_BUFOVERRUN = 12 ; overflow of internal controller buffer
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; possible only for isochronous transfers
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USB_STATUS_BUFUNDERRUN = 13 ; underflow of internal controller buffer
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; possible only for isochronous transfers
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USB_STATUS_CLOSED = 16 ; pipe closed, either explicitly with USBClosePipe
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; or due to device disconnect
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USB_STATUS_OK = 0 ; no error
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USB_STATUS_CRC = 1 ; CRC error
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USB_STATUS_BITSTUFF = 2 ; bit stuffing violation
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USB_STATUS_TOGGLE = 3 ; data toggle mismatch
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USB_STATUS_STALL = 4 ; device returned STALL
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USB_STATUS_NORESPONSE = 5 ; device not responding
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USB_STATUS_PIDCHECK = 6 ; invalid PID check bits
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USB_STATUS_WRONGPID = 7 ; unexpected PID value
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USB_STATUS_OVERRUN = 8 ; too many data from endpoint
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USB_STATUS_UNDERRUN = 9 ; too few data from endpoint
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USB_STATUS_BUFOVERRUN = 12 ; overflow of internal controller buffer
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USB_STATUS_BUFUNDERRUN = 13 ; underflow of internal controller buffer
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USB_STATUS_CLOSED = 16 ; pipe closed, either explicitly with USBClosePipe
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; or due to device disconnect
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If several transfers are queued for the same pipe, their callback functions
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are called in the same order as they were queued.
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@ -196,3 +193,13 @@ When a pipe is closed, either explicitly with USBClosePipe, or
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implicitly due to device disconnect, all callback functions are called
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with USB_STATUS_CLOSED. The call to DeviceDisconnected() occurs after
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all callbacks.
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void* __stdcall USBGetParam(void* pipe0, int param);
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Returns miscellaneous parameters of the device.
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pipe0 is the pointer to the config pipe.
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param = 0: return pointer to device descriptor
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param = 1: return pointer to config descriptor, same as passed to AddDevice
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param = 2: return speed at which the device is operating, one of
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USB_SPEED_FS = 0 ; full-speed
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USB_SPEED_LS = 1 ; low-speed
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USB_SPEED_HS = 2 ; high-speed
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