176 lines
5.4 KiB
C
176 lines
5.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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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
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* are 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <dev/isci/isci.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/vmparam.h>
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#include <machine/pc/bios.h>
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#include <dev/isci/scil/scu_bios_definitions.h>
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struct pcir_header
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{
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uint32_t signature;
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uint16_t vendor_id;
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uint16_t device_id;
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uint16_t reserved;
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uint16_t struct_length;
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uint8_t struct_revision;
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uint8_t cc_interface;
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uint8_t cc_subclass;
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uint8_t cc_baseclass;
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uint16_t image_length;
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uint16_t code_revision;
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uint8_t code_type;
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uint8_t indicator;
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uint16_t reserved1;
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};
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struct rom_header
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{
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uint8_t signature_byte[2];
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uint8_t rom_length;
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uint8_t jmp_code;
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uint16_t entry_address;
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uint8_t reserved[0x12];
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uint16_t pcir_pointer;
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uint16_t pnp_pointer;
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};
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struct oem_parameters_table
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{
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uint8_t signature[4]; /* "$OEM" */
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struct revision
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{
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uint16_t major:8; /* bits [7:0] */
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uint16_t minor:8; /* bits [8:15] */
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} revision;
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uint16_t length;
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uint8_t checksum;
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uint8_t reserved1;
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uint16_t reserved2;
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uint8_t data[1];
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};
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void
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isci_get_oem_parameters(struct isci_softc *isci)
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{
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uint32_t OROM_PHYSICAL_ADDRESS_START = 0xC0000;
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uint32_t OROM_SEARCH_LENGTH = 0x30000;
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uint16_t OROM_SIGNATURE = 0xAA55;
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uint32_t OROM_SIZE = 512;
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uint8_t *orom_start =
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(uint8_t *)BIOS_PADDRTOVADDR(OROM_PHYSICAL_ADDRESS_START);
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uint32_t offset = 0;
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while (offset < OROM_SEARCH_LENGTH) {
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/* Look for the OROM signature at the beginning of every
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* 512-byte block in the OROM region
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*/
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if (*(uint16_t*)(orom_start + offset) == OROM_SIGNATURE) {
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uint32_t *rom;
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struct rom_header *rom_header;
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struct pcir_header *pcir_header;
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uint16_t vendor_id = isci->pci_common_header.vendor_id;
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uint16_t device_id = isci->pci_common_header.device_id;
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rom = (uint32_t *)(orom_start + offset);
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rom_header = (struct rom_header *)rom;
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pcir_header = (struct pcir_header *)
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((uint8_t*)rom + rom_header->pcir_pointer);
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/* OROM signature was found. Now check if the PCI
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* device and vendor IDs match.
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*/
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if (pcir_header->vendor_id == vendor_id &&
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pcir_header->device_id == device_id)
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{
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/* OROM for this PCI device was found. Search
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* this 512-byte block for the $OEM string,
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* which will mark the beginning of the OEM
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* parameter block.
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*/
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uint8_t oem_sig[4] = {'$', 'O', 'E', 'M'};
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int dword_index;
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for (dword_index = 0;
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dword_index < OROM_SIZE/sizeof(uint32_t);
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dword_index++)
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if (rom[dword_index] == *(uint32_t *)oem_sig) {
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/* $OEM signature string was found. Now copy the OEM parameter block
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* into the struct ISCI_CONTROLLER objects. After the controllers are
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* constructed, we will pass this OEM parameter data to the SCI core
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* controller.
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*/
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struct oem_parameters_table *oem =
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(struct oem_parameters_table *)&rom[dword_index];
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SCI_BIOS_OEM_PARAM_BLOCK_T *oem_data =
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(SCI_BIOS_OEM_PARAM_BLOCK_T *)oem->data;
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int index;
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isci->oem_parameters_found = TRUE;
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isci_log_message(1, "ISCI", "oem_data->header.num_elements = %d\n",
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oem_data->header.num_elements);
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for (index = 0; index < oem_data->header.num_elements; index++)
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{
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memcpy(&isci->controllers[index].oem_parameters.sds1,
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&oem_data->controller_element[index],
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sizeof(SCIC_SDS_OEM_PARAMETERS_T));
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isci_log_message(1, "ISCI", "OEM Parameter Data for controller %d\n",
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index);
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for (int i = 0; i < sizeof(SCIC_SDS_OEM_PARAMETERS_T); i++) {
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uint8_t val = ((uint8_t *)&oem_data->controller_element[index])[i];
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isci_log_message(1, "ISCI", "%02x ", val);
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}
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isci_log_message(1, "ISCI", "\n");
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isci->controllers[index].oem_parameters_version = oem_data->header.version;
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}
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}
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/* No need to continue searching for another
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* OROM that matches this PCI device, so return
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* immediately.
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*/
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return;
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}
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}
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offset += OROM_SIZE;
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}
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}
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