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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/isci/scil/scic_sds_pci.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file contains the method implementations utilized in writing
* out PCI data for the SCI core.
*/
#include <dev/isci/scil/scic_user_callback.h>
#include <dev/isci/scil/scic_sds_pci.h>
#include <dev/isci/scil/scic_sds_controller.h>
/**
* @brief This method reads from the driver the BARs that are needed to
* determine the virtual memory space for the controller registers
*
* @param[in] this_controller The controller for which to read the base
* address registers.
*/
void scic_sds_pci_bar_initialization(
SCIC_SDS_CONTROLLER_T* this_controller
)
{
#ifdef ARLINGTON_BUILD
#define ARLINGTON_LEX_BAR 0
#define ARLINGTON_SMU_BAR 1
#define ARLINGTON_SCU_BAR 2
#define LEX_REGISTER_OFFSET 0x40000
this_controller->lex_registers =
((char *)scic_cb_pci_get_bar(
this_controller, ARLINGTON_LEX_BAR) + LEX_REGISTER_OFFSET);
this_controller->smu_registers =
(SMU_REGISTERS_T *)scic_cb_pci_get_bar(this_controller, ARLINGTON_SMU_BAR);
this_controller->scu_registers =
(SCU_REGISTERS_T *)scic_cb_pci_get_bar(this_controller, ARLINGTON_SCU_BAR);
#else // !ARLINGTON_BUILD
#if !defined(ENABLE_PCI_IO_SPACE_ACCESS)
this_controller->smu_registers =
(SMU_REGISTERS_T *)(
(char *)scic_cb_pci_get_bar(this_controller, PATSBURG_SMU_BAR)
+(0x4000 * this_controller->controller_index));
this_controller->scu_registers =
(SCU_REGISTERS_T *)(
(char *)scic_cb_pci_get_bar(this_controller, PATSBURG_SCU_BAR)
+(0x400000 * this_controller->controller_index));
#else // !defined(ENABLE_PCI_IO_SPACE_ACCESS)
if (this_controller->controller_index == 0)
{
this_controller->smu_registers = (SMU_REGISTERS_T *)
scic_cb_pci_get_bar(this_controller, PATSBURG_IO_SPACE_BAR0);
}
else
{
if (this_controller->pci_revision == SCU_PBG_HBA_REV_B0)
{
// SCU B0 violates PCI spec for size of IO bar this is corrected
// in subsequent version of the hardware so we can safely use the
// else condition below.
this_controller->smu_registers = (SMU_REGISTERS_T *)
(scic_cb_pci_get_bar(this_controller, PATSBURG_IO_SPACE_BAR0) + 0x100);
}
else
{
this_controller->smu_registers = (SMU_REGISTERS_T *)
scic_cb_pci_get_bar(this_controller, PATSBURG_IO_SPACE_BAR1);
}
}
// No need to get the bar. We will be using the offset to write to
// input/output ports via 0xA0 and 0xA4.
this_controller->scu_registers = (SCU_REGISTERS_T *) 0;
#endif // !defined(ENABLE_PCI_IO_SPACE_ACCESS)
#endif // ARLINGTON_BUILD
}
#if defined(ENABLE_PCI_IO_SPACE_ACCESS) && !defined(ARLINGTON_BUILD)
/**
* @brief This method will read from PCI memory for the SMU register
* space via IO space access.
*
* @param[in] controller The controller for which to read a DWORD.
* @param[in] address This parameter depicts the address from
* which to read.
*
* @return The value being returned from the PCI memory location.
*
* @todo This PCI memory access calls likely need to be optimized into macro?
*/
U32 scic_sds_pci_read_smu_dword(
SCI_CONTROLLER_HANDLE_T controller,
void * address
)
{
return scic_cb_pci_read_dword(controller, address);
}
/**
* @brief This method will write to PCI memory for the SMU register
* space via IO space access.
*
* @param[in] controller The controller for which to read a DWORD.
* @param[in] address This parameter depicts the address into
* which to write.
* @param[out] write_value This parameter depicts the value being written
* into the PCI memory location.
*
* @todo This PCI memory access calls likely need to be optimized into macro?
*/
void scic_sds_pci_write_smu_dword(
SCI_CONTROLLER_HANDLE_T controller,
void * address,
U32 write_value
)
{
scic_cb_pci_write_dword(controller, address, write_value);
}
/**
* @brief This method will read from PCI memory for the SCU register
* space via IO space access.
*
* @param[in] controller The controller for which to read a DWORD.
* @param[in] address This parameter depicts the address from
* which to read.
*
* @return The value being returned from the PCI memory location.
*
* @todo This PCI memory access calls likely need to be optimized into macro?
*/
U32 scic_sds_pci_read_scu_dword(
SCI_CONTROLLER_HANDLE_T controller,
void * address
)
{
SCIC_SDS_CONTROLLER_T * this_controller = (SCIC_SDS_CONTROLLER_T*)controller;
scic_cb_pci_write_dword(
controller,
(void*) ((char *)(this_controller->smu_registers) + SCU_MMR_ADDRESS_WINDOW_OFFSET),
(U32) address
);
return scic_cb_pci_read_dword(
controller,
(void*) ((char *)(this_controller->smu_registers) + SCU_MMR_DATA_WINDOW_OFFSET)
);
}
/**
* @brief This method will write to PCI memory for the SCU register
* space via IO space access.
*
* @param[in] controller The controller for which to read a DWORD.
* @param[in] address This parameter depicts the address into
* which to write.
* @param[out] write_value This parameter depicts the value being written
* into the PCI memory location.
*
* @todo This PCI memory access calls likely need to be optimized into macro?
*/
void scic_sds_pci_write_scu_dword(
SCI_CONTROLLER_HANDLE_T controller,
void * address,
U32 write_value
)
{
SCIC_SDS_CONTROLLER_T * this_controller = (SCIC_SDS_CONTROLLER_T*)controller;
scic_cb_pci_write_dword(
controller,
(void*) ((char *)(this_controller->smu_registers) + SCU_MMR_ADDRESS_WINDOW_OFFSET),
(U32) address
);
scic_cb_pci_write_dword(
controller,
(void*) ((char *)(this_controller->smu_registers) + SCU_MMR_DATA_WINDOW_OFFSET),
write_value
);
}
#endif // defined(ENABLE_PCI_IO_SPACE_ACCESS)