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/*-
* 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("$FreeBSD$");
#include <dev/isci/isci.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/pmap.h>
#include <machine/vmparam.h>
#include <machine/pc/bios.h>
#include <dev/isci/scil/scu_bios_definitions.h>
struct pcir_header
{
uint32_t signature;
uint16_t vendor_id;
uint16_t device_id;
uint16_t reserved;
uint16_t struct_length;
uint8_t struct_revision;
uint8_t cc_interface;
uint8_t cc_subclass;
uint8_t cc_baseclass;
uint16_t image_length;
uint16_t code_revision;
uint8_t code_type;
uint8_t indicator;
uint16_t reserved1;
};
struct rom_header
{
uint8_t signature_byte[2];
uint8_t rom_length;
uint8_t jmp_code;
uint16_t entry_address;
uint8_t reserved[0x12];
uint16_t pcir_pointer;
uint16_t pnp_pointer;
};
struct oem_parameters_table
{
uint8_t signature[4]; /* "$OEM" */
struct revision
{
uint16_t major:8; /* bits [7:0] */
uint16_t minor:8; /* bits [8:15] */
} revision;
uint16_t length;
uint8_t checksum;
uint8_t reserved1;
uint16_t reserved2;
uint8_t data[1];
};
void
isci_get_oem_parameters(struct isci_softc *isci)
{
uint32_t OROM_PHYSICAL_ADDRESS_START = 0xC0000;
uint32_t OROM_SEARCH_LENGTH = 0x30000;
uint16_t OROM_SIGNATURE = 0xAA55;
uint32_t OROM_SIZE = 512;
uint8_t *orom_start =
(uint8_t *)BIOS_PADDRTOVADDR(OROM_PHYSICAL_ADDRESS_START);
uint32_t offset = 0;
while (offset < OROM_SEARCH_LENGTH) {
/* Look for the OROM signature at the beginning of every
* 512-byte block in the OROM region
*/
if (*(uint16_t*)(orom_start + offset) == OROM_SIGNATURE) {
uint32_t *rom;
struct rom_header *rom_header;
struct pcir_header *pcir_header;
uint16_t vendor_id = isci->pci_common_header.vendor_id;
uint16_t device_id = isci->pci_common_header.device_id;
rom = (uint32_t *)(orom_start + offset);
rom_header = (struct rom_header *)rom;
pcir_header = (struct pcir_header *)
((uint8_t*)rom + rom_header->pcir_pointer);
/* OROM signature was found. Now check if the PCI
* device and vendor IDs match.
*/
if (pcir_header->vendor_id == vendor_id &&
pcir_header->device_id == device_id)
{
/* OROM for this PCI device was found. Search
* this 512-byte block for the $OEM string,
* which will mark the beginning of the OEM
* parameter block.
*/
uint8_t oem_sig[4] = {'$', 'O', 'E', 'M'};
int dword_index;
for (dword_index = 0;
dword_index < OROM_SIZE/sizeof(uint32_t);
dword_index++)
if (rom[dword_index] == *(uint32_t *)oem_sig) {
/* $OEM signature string was found. Now copy the OEM parameter block
* into the struct ISCI_CONTROLLER objects. After the controllers are
* constructed, we will pass this OEM parameter data to the SCI core
* controller.
*/
struct oem_parameters_table *oem =
(struct oem_parameters_table *)&rom[dword_index];
SCI_BIOS_OEM_PARAM_BLOCK_T *oem_data =
(SCI_BIOS_OEM_PARAM_BLOCK_T *)oem->data;
int index;
isci->oem_parameters_found = TRUE;
isci_log_message(1, "ISCI", "oem_data->header.num_elements = %d\n",
oem_data->header.num_elements);
for (index = 0; index < oem_data->header.num_elements; index++)
{
memcpy(&isci->controllers[index].oem_parameters.sds1,
&oem_data->controller_element[index],
sizeof(SCIC_SDS_OEM_PARAMETERS_T));
isci_log_message(1, "ISCI", "OEM Parameter Data for controller %d\n",
index);
for (int i = 0; i < sizeof(SCIC_SDS_OEM_PARAMETERS_T); i++) {
uint8_t val = ((uint8_t *)&oem_data->controller_element[index])[i];
isci_log_message(1, "ISCI", "%02x ", val);
}
isci_log_message(1, "ISCI", "\n");
isci->controllers[index].oem_parameters_version = oem_data->header.version;
}
}
/* No need to continue searching for another
* OROM that matches this PCI device, so return
* immediately.
*/
return;
}
}
offset += OROM_SIZE;
}
}
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