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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
#ifndef __LINUX_USB_DLN2_H
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#define __LINUX_USB_DLN2_H
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#define DLN2_CMD(cmd, id) ((cmd) | ((id) << 8))
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struct dln2_platform_data {
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u16 handle; /* sub-driver handle (internally used only) */
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u8 port; /* I2C/SPI port */
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};
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/**
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* dln2_event_cb_t - event callback function signature
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*
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* @pdev - the sub-device that registered this callback
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* @echo - the echo header field received in the message
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* @data - the data payload
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* @len - the data payload length
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*
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* The callback function is called in interrupt context and the data payload is
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* only valid during the call. If the user needs later access of the data, it
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* must copy it.
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*/
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typedef void (*dln2_event_cb_t)(struct platform_device *pdev, u16 echo,
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const void *data, int len);
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/**
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* dl2n_register_event_cb - register a callback function for an event
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*
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* @pdev - the sub-device that registers the callback
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* @event - the event for which to register a callback
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* @event_cb - the callback function
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*
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* @return 0 in case of success, negative value in case of error
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*/
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int dln2_register_event_cb(struct platform_device *pdev, u16 event,
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dln2_event_cb_t event_cb);
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/**
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* dln2_unregister_event_cb - unregister the callback function for an event
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*
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* @pdev - the sub-device that registered the callback
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* @event - the event for which to register a callback
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*/
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void dln2_unregister_event_cb(struct platform_device *pdev, u16 event);
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/**
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* dln2_transfer - issue a DLN2 command and wait for a response and the
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* associated data
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*
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* @pdev - the sub-device which is issuing this transfer
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* @cmd - the command to be sent to the device
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* @obuf - the buffer to be sent to the device; it can be NULL if the user
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* doesn't need to transmit data with this command
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* @obuf_len - the size of the buffer to be sent to the device
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* @ibuf - any data associated with the response will be copied here; it can be
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* NULL if the user doesn't need the response data
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* @ibuf_len - must be initialized to the input buffer size; it will be modified
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* to indicate the actual data transferred;
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*
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* @return 0 for success, negative value for errors
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*/
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int dln2_transfer(struct platform_device *pdev, u16 cmd,
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const void *obuf, unsigned obuf_len,
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void *ibuf, unsigned *ibuf_len);
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/**
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* dln2_transfer_rx - variant of @dln2_transfer() where TX buffer is not needed
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*
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* @pdev - the sub-device which is issuing this transfer
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* @cmd - the command to be sent to the device
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* @ibuf - any data associated with the response will be copied here; it can be
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* NULL if the user doesn't need the response data
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* @ibuf_len - must be initialized to the input buffer size; it will be modified
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* to indicate the actual data transferred;
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*
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* @return 0 for success, negative value for errors
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*/
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static inline int dln2_transfer_rx(struct platform_device *pdev, u16 cmd,
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void *ibuf, unsigned *ibuf_len)
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{
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return dln2_transfer(pdev, cmd, NULL, 0, ibuf, ibuf_len);
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}
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/**
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* dln2_transfer_tx - variant of @dln2_transfer() where RX buffer is not needed
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*
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* @pdev - the sub-device which is issuing this transfer
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* @cmd - the command to be sent to the device
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* @obuf - the buffer to be sent to the device; it can be NULL if the
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* user doesn't need to transmit data with this command
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* @obuf_len - the size of the buffer to be sent to the device
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*
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* @return 0 for success, negative value for errors
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*/
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static inline int dln2_transfer_tx(struct platform_device *pdev, u16 cmd,
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const void *obuf, unsigned obuf_len)
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{
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return dln2_transfer(pdev, cmd, obuf, obuf_len, NULL, NULL);
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}
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#endif
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