diff options
Diffstat (limited to 'src/occ_405/firdata/sbe_fifo.c')
| -rw-r--r-- | src/occ_405/firdata/sbe_fifo.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/occ_405/firdata/sbe_fifo.c b/src/occ_405/firdata/sbe_fifo.c new file mode 100644 index 0000000..6f22a00 --- /dev/null +++ b/src/occ_405/firdata/sbe_fifo.c @@ -0,0 +1,114 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/occ_405/firdata/sbe_fifo.c $ */ +/* */ +/* OpenPOWER OnChipController Project */ +/* */ +/* Contributors Listed Below - COPYRIGHT 2017 */ +/* [+] International Business Machines Corp. */ +/* */ +/* */ +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ +/* */ +/* http://www.apache.org/licenses/LICENSE-2.0 */ +/* */ +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ +/* implied. See the License for the specific language governing */ +/* permissions and limitations under the License. */ +/* */ +/* IBM_PROLOG_END_TAG */ +#include "sbe_fifo.h" +#include <trac.h> + +/** @brief Performs a FIFO operation (read or write) + * @param i_target The SCOM target. + * @param i_fifoRequest the FIFO request data structure + * @param i_fifoResponse the response from SBE + * @param i_responseSize the size of the response + * @return Non-SUCCESS if the operation fails. SUCCESS otherwise. + */ +uint32_t performFifoChipOp(SCOM_Trgt_t* i_target, + uint32_t* i_fifoRequest, + uint32_t* i_fifoResponse, + uint32_t i_responseSize) +{ + uint32_t l_rc = SUCCESS; + + TRAC_INFO("Enter performFifoChipOp"); + + + TRAC_INFO("Exit performFifoChioOp"); + + return l_rc; +} + +/** @brief Performs a write SCOM operation using SBE FIFO + * @param i_target The SCOM target. + * @param i_addr 64-bit SCOM address. + * @param i_data 64-bit data to write. + * @return Non-SUCCESS if the SCOM fails. SUCCESS otherwise. + */ +int32_t putFifoScom(SCOM_Trgt_t* i_target, uint64_t i_addr, uint64_t i_data) +{ + uint32_t l_rc = SUCCESS; + + TRAC_INFO("Enter putFifoScom"); + + struct fifoPutScomRequest l_fifoRequest; + struct fifoPutScomResponse l_fifoResponse; + + l_fifoRequest.wordCnt = PUT_SCOM_REQUEST_WORD_CNT; + l_fifoRequest.reserved = 0; + l_fifoRequest.commandClass = SBE_FIFO_CLASS_SCOM_ACCESS; + l_fifoRequest.command = SBE_FIFO_CMD_PUT_SCOM; + l_fifoRequest.address = i_addr; + l_fifoRequest.data = i_data; + + l_rc = performFifoChipOp(i_target, + (uint32_t*)&l_fifoRequest, + (uint32_t*)&l_fifoResponse, + sizeof(struct fifoPutScomResponse)); + + TRAC_INFO("Exit putFifoScom"); + + return l_rc; +} + +/** @brief Performs a read SCOM operation using SBE FIFO + * @param i_target The SCOM target. + * @param i_addr 64-bit SCOM address. + * @param o_data 64-bit returned value. + * @return Non-SUCCESS if the SCOM fails. SUCCESS otherwise. + */ +int32_t getFifoScom(SCOM_Trgt_t* i_target, uint64_t i_addr, uint64_t* o_data) +{ + uint32_t l_rc = SUCCESS; + + TRAC_INFO("Enter getFifoScom"); + + struct fifoGetScomRequest l_fifoRequest; + struct fifoGetScomResponse l_fifoResponse; + + l_fifoRequest.wordCnt = GET_SCOM_REQUEST_WORD_CNT; + l_fifoRequest.reserved = 0; + l_fifoRequest.commandClass = SBE_FIFO_CLASS_SCOM_ACCESS; + l_fifoRequest.command = SBE_FIFO_CMD_GET_SCOM; + l_fifoRequest.address = i_addr; + + l_rc = performFifoChipOp(i_target, + (uint32_t*)&l_fifoRequest, + (uint32_t*)&l_fifoResponse, + sizeof(struct fifoGetScomResponse)); + + //Always return data even if there is an error + *o_data = l_fifoResponse.data; + + TRAC_INFO("Exit getFifoScom"); + + return l_rc; +} |
