dc4ee6ca91
make use of it where possible. This primarily brings in support for newer hardware, and FreeBSD is not yet able to support the abundance of IRQs on new hardware and many features in the Ethernet driver. Because of the changes to IRQs in the Simple Executive, we have to maintain our own list of Octeon IRQs now, which probably can be pared-down and be specific to the CIU interrupt unit soon, and when other interrupt mechanisms are added they can maintain their own definitions. Remove unmasking of interrupts from within the UART device now that the function used is no longer present in the Simple Executive. The unmasking seems to have been gratuitous as this is more properly handled by the buses above the UART device, and seems to work on that basis.
301 lines
9.8 KiB
C
301 lines
9.8 KiB
C
#ifndef __CVMX_USBD_H__
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#define __CVMX_USBD_H__
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/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* "cvmx-usbd.h" defines a set of low level USB functions to help developers
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* create Octeon USB devices for various operating systems. These functions
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* provide a generic API to the Octeon USB blocks, hiding the internal hardware
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* specific operations.
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*
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* <hr>$Revision: 32636 $<hr>
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum
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{
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CVMX_USBD_TRANSFER_CONTROL = 0,
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CVMX_USBD_TRANSFER_ISOCHRONOUS = 1,
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CVMX_USBD_TRANSFER_BULK = 2,
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CVMX_USBD_TRANSFER_INTERRUPT = 3,
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} cvmx_usbd_transfer_t;
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typedef enum
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{
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CVMX_USBD_SPEED_HIGH = 0,
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CVMX_USBD_SPEED_FULL = 1,
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CVMX_USBD_SPEED_LOW = 2,
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} cvmx_usbd_speed_t;
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typedef enum
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{
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CVMX_USBD_CALLBACK_SUSPEND,
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CVMX_USBD_CALLBACK_RESET,
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CVMX_USBD_CALLBACK_ENUM_COMPLETE,
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CVMX_USBD_CALLBACK_DEVICE_SETUP,
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CVMX_USBD_CALLBACK_IN_COMPLETE,
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CVMX_USBD_CALLBACK_OUT_COMPLETE,
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__CVMX_USBD_CALLBACK_END
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} cvmx_usbd_callback_t;
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typedef enum
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{
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_XO_XI = 1<<0, /**< The USB port uses a 12MHz crystal as clock source
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at USB_XO and USB_XI. */
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_XO_GND = 1<<1, /**< The USB port uses 12/24/48MHz 2.5V board clock
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source at USB_XO. USB_XI should be tied to GND.*/
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_AUTO = 0, /**< Automatically determine clock type based on function
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in cvmx-helper-board.c. */
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_MHZ_MASK = 3<<3, /**< Mask for clock speed field */
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_12MHZ = 1<<3, /**< Speed of reference clock or crystal */
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_24MHZ = 2<<3, /**< Speed of reference clock */
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CVMX_USBD_INITIALIZE_FLAGS_CLOCK_48MHZ = 3<<3, /**< Speed of reference clock */
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/* Bits 3-4 used to encode the clock frequency */
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CVMX_USBD_INITIALIZE_FLAGS_DEBUG = 1<<16
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} cvmx_usbd_initialize_flags_t;
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typedef void (*cvmx_usbd_callback_func_t)(cvmx_usbd_callback_t reason, int endpoint_num, int bytes_transferred, void *user_data);
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typedef struct
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{
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int init_flags;
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int index;
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cvmx_usbd_callback_func_t callback[__CVMX_USBD_CALLBACK_END];
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void *callback_data[__CVMX_USBD_CALLBACK_END];
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struct {
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int buffer_length;
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} endpoint[16];
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} cvmx_usbd_state_t;
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/**
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* Initialize a USB port for use. This must be called before any
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* other access to the Octeon USB port is made. The port starts
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* off in the disabled state.
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*
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* @param usb Pointer to an empty cvmx_usbd_state_t structure
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* that will be populated by the initialize call.
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* This structure is then passed to all other USB
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* functions.
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* @param usb_port_number
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* Which Octeon USB port to initialize.
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* @param flags Flags to control hardware initialization. See
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* cvmx_usbd_initialize_flags_t for the flag
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* definitions. Some flags are mandatory.
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*
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* @return Zero or a negative on error.
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*/
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int cvmx_usbd_initialize(cvmx_usbd_state_t *usb, int usb_port_number,
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cvmx_usbd_initialize_flags_t flags);
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/**
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* Shutdown a USB port after a call to cvmx_usbd_initialize().
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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*
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* @return Zero or a negative on error.
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*/
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int cvmx_usbd_shutdown(cvmx_usbd_state_t *usb);
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/**
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* Enable a USB port. After this call succeeds, the USB port is
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* online and servicing requests.
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*
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* @param usb USB device state populated by
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* cvmx_usb_initialize().
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*
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* @return Zero or negative on error.
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*/
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int cvmx_usbd_enable(cvmx_usbd_state_t *usb);
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/**
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* Disable a USB port. After this call the USB port will not
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* generate data transfers and will not generate events.
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*
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* @param usb USB device state populated by
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* cvmx_usb_initialize().
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*
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* @return Zero or negative on error.
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*/
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int cvmx_usbd_disable(cvmx_usbd_state_t *usb);
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/**
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* Register a callback function to process USB events
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param reason The reason this callback should be called
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* @param func Function to call
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* @param user_data User supplied data for the callback
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*
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* @return Zero on succes, negative on failure
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*/
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int cvmx_usbd_register(cvmx_usbd_state_t *usb, cvmx_usbd_callback_t reason, cvmx_usbd_callback_func_t func, void *user_data);
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/**
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* Poll the USB block for status and call all needed callback
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* handlers. This function is meant to be called in the interrupt
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* handler for the USB controller. It can also be called
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* periodically in a loop for non-interrupt based operation.
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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*
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* @return Zero or negative on error.
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*/
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int cvmx_usbd_poll(cvmx_usbd_state_t *usb);
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/**
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* Get the current USB address
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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*
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* @return The USB address
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*/
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int cvmx_usbd_get_address(cvmx_usbd_state_t *usb);
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/**
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* Set the current USB address
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param address Address to set
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*/
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void cvmx_usbd_set_address(cvmx_usbd_state_t *usb, int address);
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/**
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* Get the current USB speed
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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*
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* @return The USB speed
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*/
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cvmx_usbd_speed_t cvmx_usbd_get_speed(cvmx_usbd_state_t *usb);
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/**
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* Set the current USB speed
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param speed The requested speed
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*/
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void cvmx_usbd_set_speed(cvmx_usbd_state_t *usb, cvmx_usbd_speed_t speed);
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/**
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* Enable an endpoint to respond to an OUT transaction
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param endpoint_num
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* Endpoint number to enable
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* @param transfer_type
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* Transfer type for the endpoint
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* @param max_packet_size
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* Maximum packet size for the endpoint
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* @param buffer Buffer to receive the data
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* @param buffer_length
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* Length of the buffer in bytes
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_usbd_out_endpoint_enable(cvmx_usbd_state_t *usb,
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int endpoint_num, cvmx_usbd_transfer_t transfer_type,
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int max_packet_size, uint64_t buffer, int buffer_length);
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/**
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* Disable an OUT endpoint
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param endpoint_num
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* Endpoint number to disable
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_usbd_out_endpoint_disable(cvmx_usbd_state_t *usb, int endpoint_num);
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/**
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* Enable an endpoint to respond to an IN transaction
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param endpoint_num
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* Endpoint number to enable
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* @param transfer_type
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* Transfer type for the endpoint
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* @param max_packet_size
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* Maximum packet size for the endpoint
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* @param buffer Buffer to send
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* @param buffer_length
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* Length of the buffer in bytes
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_usbd_in_endpoint_enable(cvmx_usbd_state_t *usb,
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int endpoint_num, cvmx_usbd_transfer_t transfer_type,
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int max_packet_size, uint64_t buffer, int buffer_length);
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/**
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* Disable an IN endpoint
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*
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* @param usb USB device state populated by
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* cvmx_usbd_initialize().
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* @param endpoint_num
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* Endpoint number to disable
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_usbd_in_endpoint_disable(cvmx_usbd_state_t *usb, int endpoint_num);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CVMX_USBD_H__ */
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