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/***********************license start***************
* Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
* POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
* OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
*
*
* For any questions regarding licensing please contact marketing@caviumnetworks.com
*
***********************license end**************************************/
/**
* @file
*
* Source file for the zip (deflate) block
*
* <hr>$Revision: 41586 $<hr>
*/
#include "executive-config.h"
#include "cvmx-config.h"
#include "cvmx.h"
#include "cvmx-cmd-queue.h"
#include "cvmx-zip.h"
#ifdef CVMX_ENABLE_PKO_FUNCTIONS
/**
* Initialize the ZIP block
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_initialize(void)
{
cvmx_zip_cmd_buf_t zip_cmd_buf;
cvmx_cmd_queue_result_t result;
result = cvmx_cmd_queue_initialize(CVMX_CMD_QUEUE_ZIP, 0,
CVMX_FPA_OUTPUT_BUFFER_POOL,
CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE);
if (result != CVMX_CMD_QUEUE_SUCCESS)
return -1;
zip_cmd_buf.u64 = 0;
zip_cmd_buf.s.dwb = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/128;
zip_cmd_buf.s.pool = CVMX_FPA_OUTPUT_BUFFER_POOL;
zip_cmd_buf.s.size = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/8;
zip_cmd_buf.s.ptr = cvmx_ptr_to_phys(cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_ZIP))>>7;
cvmx_write_csr(CVMX_ZIP_CMD_BUF, zip_cmd_buf.u64);
cvmx_write_csr(CVMX_ZIP_ERROR, 1);
cvmx_read_csr(CVMX_ZIP_CMD_BUF); /* Read to make sure setup is complete */
return 0;
}
/**
* Shutdown the ZIP block. ZIP must be idle when
* this function is called.
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_shutdown(void)
{
cvmx_zip_cmd_ctl_t zip_cmd_ctl;
if (cvmx_cmd_queue_length(CVMX_CMD_QUEUE_ZIP))
{
cvmx_dprintf("ERROR: cvmx_zip_shutdown: ZIP not idle.\n");
return -1;
}
zip_cmd_ctl.u64 = cvmx_read_csr(CVMX_ZIP_CMD_CTL);
zip_cmd_ctl.s.reset = 1;
cvmx_write_csr(CVMX_ZIP_CMD_CTL, zip_cmd_ctl.u64);
cvmx_wait(100);
cvmx_cmd_queue_shutdown(CVMX_CMD_QUEUE_ZIP);
return 0;
}
/**
* Submit a command to the ZIP block
*
* @param command Zip command to submit
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_submit(cvmx_zip_command_t *command)
{
cvmx_cmd_queue_result_t result = cvmx_cmd_queue_write(CVMX_CMD_QUEUE_ZIP, 1, 8, command->u64);
if (result == CVMX_CMD_QUEUE_SUCCESS)
cvmx_write_csr(CVMX_ADDR_DID(CVMX_FULL_DID(7, 0)), 8);
return result;
}
#endif
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