forked from Minki/linux
Staging: sep: merge the two files
Now we have it trimmed down a bit merge the two pieces so we can clean it up properly. Code moves but no changes in functions. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox
Greg Kroah-Hartman
parent
8407248231
commit
0097a69d55
@ -1,3 +1,3 @@
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EXTRA_CFLAGS += -DLITTLE__ENDIAN -DDX_CC5_SEP_PLAT -DCRYS_NO_EXT_IF_MODE_SUPPORT
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obj-$(CONFIG_DX_SEP) := sep_driver.o
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sep_driver-objs := sep_main_mod.o sep_ext_with_pci_driver.o
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@ -38,6 +38,8 @@
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#include <linux/mm.h>
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#include <linux/poll.h>
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#include <linux/wait.h>
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#include <linux/pci.h>
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#include <linux/firmware.h>
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#include <asm/ioctl.h>
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#include <linux/ioport.h>
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#include <asm/io.h>
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@ -50,18 +52,115 @@
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#include "sep_driver_ext_api.h"
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#include "sep_dev.h"
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#if SEP_DRIVER_ARM_DEBUG_MODE
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#define CRYS_SEP_ROM_length 0x4000
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#define CRYS_SEP_ROM_start_address 0x8000C000UL
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#define CRYS_SEP_ROM_start_address_offset 0xC000UL
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#define SEP_ROM_BANK_register 0x80008420UL
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#define SEP_ROM_BANK_register_offset 0x8420UL
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#define SEP_RAR_IO_MEM_REGION_START_ADDRESS 0x82000000
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/*
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* THESE 2 definitions are specific to the board - must be
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* defined during integration
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*/
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#define SEP_RAR_IO_MEM_REGION_START_ADDRESS 0xFF0D0000
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/* 2M size */
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void sep_load_rom_code(void)
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{
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/* Index variables */
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unsigned long i, k, j;
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unsigned long regVal;
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unsigned long Error;
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unsigned long warning;
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/* Loading ROM from SEP_ROM_image.h file */
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k = sizeof(CRYS_SEP_ROM);
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edbg("SEP Driver: DX_CC_TST_SepRomLoader start\n");
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edbg("SEP Driver: k is %lu\n", k);
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edbg("SEP Driver: sep_dev->reg_base_address is %p\n", sep_dev->reg_base_address);
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edbg("SEP Driver: CRYS_SEP_ROM_start_address_offset is %p\n", CRYS_SEP_ROM_start_address_offset);
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for (i = 0; i < 4; i++) {
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/* write bank */
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sep_write_reg(sep_dev, SEP_ROM_BANK_register_offset, i);
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for (j = 0; j < CRYS_SEP_ROM_length / 4; j++) {
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sep_write_reg(sep_dev, CRYS_SEP_ROM_start_address_offset + 4 * j, CRYS_SEP_ROM[i * 0x1000 + j]);
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k = k - 4;
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if (k == 0) {
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j = CRYS_SEP_ROM_length;
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i = 4;
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}
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}
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}
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/* reset the SEP */
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sep_write_reg(sep_dev, HW_HOST_SEP_SW_RST_REG_ADDR, 0x1);
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/* poll for SEP ROM boot finish */
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do {
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retVal = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR3_REG_ADDR);
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} while (!regVal);
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edbg("SEP Driver: ROM polling ended\n");
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switch (regVal) {
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case 0x1:
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/* fatal error - read erro status from GPRO */
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Error = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
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edbg("SEP Driver: ROM polling case 1\n");
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break;
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case 0x2:
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/* Boot First Phase ended */
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warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
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edbg("SEP Driver: ROM polling case 2\n");
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break;
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case 0x4:
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/* Cold boot ended successfully */
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warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
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edbg("SEP Driver: ROM polling case 4\n");
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Error = 0;
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break;
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case 0x8:
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/* Warmboot ended successfully */
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warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
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edbg("SEP Driver: ROM polling case 8\n");
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Error = 0;
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break;
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case 0x10:
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/* ColdWarm boot ended successfully */
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warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
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edbg("SEP Driver: ROM polling case 16\n");
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Error = 0;
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break;
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case 0x20:
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edbg("SEP Driver: ROM polling case 32\n");
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break;
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}
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}
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#else
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void sep_load_rom_code(void) { }
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#endif /* SEP_DRIVER_ARM_DEBUG_MODE */
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/*----------------------------------------
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DEFINES
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-----------------------------------------*/
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#define INT_MODULE_PARM(n, v) int n = v; module_param(n, int, 0)
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/*--------------------------------------
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TYPEDEFS
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-----------------------------------------*/
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#define BASE_ADDRESS_FOR_SYSTEM 0xfffc0000
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#define SEP_RAR_IO_MEM_REGION_SIZE 0x40000
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/*--------------------------------------------
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GLOBAL variables
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@ -71,6 +170,14 @@
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INT_MODULE_PARM(sepDebug, 0x0);
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MODULE_PARM_DESC(sepDebug, "Flag to enable SEP debug messages");
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/* Keep this a single static object for now to keep the conversion easy */
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static struct sep_device sep_instance;
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struct sep_device *sep_dev = &sep_instance;
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/* temporary */
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unsigned long jiffies_future;
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/*
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mutex for the access to the internals of the sep driver
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@ -287,6 +394,171 @@ static int sep_lock_user_pages(unsigned long app_virt_addr, unsigned long data_s
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FUNCTIONS
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-----------------------------------------------*/
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/*
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This functions locks the area of the resisnd and cache sep code
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*/
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void sep_lock_cache_resident_area(void)
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{
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return;
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}
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/*
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This functions copies the cache and resident from their source location into
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destination memory, which is external to Linux VM and is given as
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physical address
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*/
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int sep_copy_cache_resident_to_area(unsigned long src_cache_addr, unsigned long cache_size_in_bytes, unsigned long src_resident_addr, unsigned long resident_size_in_bytes, unsigned long *dst_new_cache_addr_ptr, unsigned long *dst_new_resident_addr_ptr)
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{
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unsigned long resident_addr;
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unsigned long cache_addr;
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const struct firmware *fw;
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char *cache_name = "cache.image.bin";
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char *res_name = "resident.image.bin";
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/* error */
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int error;
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/*--------------------------------
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CODE
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-------------------------------------*/
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error = 0;
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edbg("SEP Driver:rar_virtual is %p\n", sep_dev->rar_virtual_address);
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edbg("SEP Driver:rar_physical is %08lx\n", sep_dev->rar_physical_address);
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sep_dev->rar_region_addr = (unsigned long) sep_dev->rar_virtual_address;
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sep_dev->cache_physical_address = sep_dev->rar_physical_address;
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sep_dev->cache_virtual_address = sep_dev->rar_virtual_address;
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/* load cache */
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error = request_firmware(&fw, cache_name, &sep_dev->sep_pci_dev_ptr->dev);
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if (error) {
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edbg("SEP Driver:cant request cache fw\n");
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goto end_function;
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}
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edbg("SEP Driver:cache data loc is %p\n", (void *) fw->data);
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edbg("SEP Driver:cache data size is %08Zx\n", fw->size);
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memcpy((void *) sep_dev->cache_virtual_address, (void *) fw->data, fw->size);
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sep_dev->cache_size = fw->size;
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cache_addr = (unsigned long) sep_dev->cache_virtual_address;
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release_firmware(fw);
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sep_dev->resident_physical_address = sep_dev->cache_physical_address + sep_dev->cache_size;
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sep_dev->resident_virtual_address = sep_dev->cache_virtual_address + sep_dev->cache_size;
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/* load resident */
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error = request_firmware(&fw, res_name, &sep_dev->sep_pci_dev_ptr->dev);
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if (error) {
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edbg("SEP Driver:cant request res fw\n");
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goto end_function;
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}
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edbg("SEP Driver:res data loc is %p\n", (void *) fw->data);
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edbg("SEP Driver:res data size is %08Zx\n", fw->size);
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memcpy((void *) sep_dev->resident_virtual_address, (void *) fw->data, fw->size);
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sep_dev->resident_size = fw->size;
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release_firmware(fw);
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resident_addr = (unsigned long) sep_dev->resident_virtual_address;
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edbg("SEP Driver:resident_addr (physical )is %08lx\n", sep_dev->resident_physical_address);
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edbg("SEP Driver:cache_addr (physical) is %08lx\n", sep_dev->cache_physical_address);
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edbg("SEP Driver:resident_addr (logical )is %08lx\n", resident_addr);
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edbg("SEP Driver:cache_addr (logical) is %08lx\n", cache_addr);
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edbg("SEP Driver:resident_size is %08lx\n", sep_dev->resident_size);
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edbg("SEP Driver:cache_size is %08lx\n", sep_dev->cache_size);
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/* physical addresses */
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*dst_new_cache_addr_ptr = sep_dev->cache_physical_address;
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*dst_new_resident_addr_ptr = sep_dev->resident_physical_address;
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end_function:
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return error;
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}
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/*
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This functions maps and allocates the
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shared area on the external RAM (device)
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The input is shared_area_size - the size of the memory to
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allocate. The outputs
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are kernel_shared_area_addr_ptr - the kerenl
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address of the mapped and allocated
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shared area, and phys_shared_area_addr_ptr
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- the physical address of the shared area
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*/
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int sep_map_and_alloc_shared_area(unsigned long shared_area_size, unsigned long *kernel_shared_area_addr_ptr, unsigned long *phys_shared_area_addr_ptr)
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{
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// shared_virtual_address = ioremap_nocache(0xda00000,shared_area_size);
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sep_dev->shared_virtual_address = kmalloc(shared_area_size, GFP_KERNEL);
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if (!sep_dev->shared_virtual_address) {
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edbg("sep_driver:shared memory kmalloc failed\n");
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return -1;
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}
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/* FIXME */
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sep_dev->shared_physical_address = __pa(sep_dev->shared_virtual_address);
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/* shared_physical_address = 0xda00000; */
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*kernel_shared_area_addr_ptr = (unsigned long) sep_dev->shared_virtual_address;
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/* set the physical address of the shared area */
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*phys_shared_area_addr_ptr = sep_dev->shared_physical_address;
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edbg("SEP Driver:shared_virtual_address is %p\n", sep_dev->shared_virtual_address);
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edbg("SEP Driver:shared_region_size is %08lx\n", shared_area_size);
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edbg("SEP Driver:shared_physical_addr is %08lx\n", *phys_shared_area_addr_ptr);
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return 0;
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}
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/*
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This functions unmaps and deallocates the shared area
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on the external RAM (device)
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The input is shared_area_size - the size of the memory to deallocate,kernel_
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shared_area_addr_ptr - the kernel address of the mapped and allocated
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shared area,phys_shared_area_addr_ptr - the physical address of
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the shared area
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*/
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void sep_unmap_and_free_shared_area(unsigned long shared_area_size, unsigned long kernel_shared_area_addr, unsigned long phys_shared_area_addr)
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{
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kfree((void *) kernel_shared_area_addr);
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}
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/*
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This functions returns the physical address inside shared area according
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to the virtual address. It can be either on the externa RAM device
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(ioremapped), or on the system RAM
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This implementation is for the external RAM
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*/
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unsigned long sep_shared_area_virt_to_phys(unsigned long virt_address)
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{
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edbg("SEP Driver:sh virt to phys v %08lx\n", virt_address);
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edbg("SEP Driver:sh virt to phys p %08lx\n", sep_dev->shared_physical_address + (virt_address - (unsigned long) sep_dev->shared_virtual_address));
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return (unsigned long) sep_dev->shared_physical_address + (virt_address - (unsigned long) sep_dev->shared_virtual_address);
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}
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/*
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This functions returns the virtual address inside shared area
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according to the physical address. It can be either on the
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externa RAM device (ioremapped), or on the system RAM This implementation
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is for the external RAM
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*/
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unsigned long sep_shared_area_phys_to_virt(unsigned long phys_address)
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{
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return (unsigned long) sep_dev->shared_virtual_address + (phys_address - sep_dev->shared_physical_address);
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}
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/*
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this function returns the address of the message shared area
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*/
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@ -1860,7 +2132,6 @@ static int sep_start_handler(void)
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if (reg_val == 0x1)
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/* fatal error - read erro status from GPRO */
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error = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
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end_function:
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dbg("SEP Driver:<-------- sep_start_handler end\n");
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return error;
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}
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@ -2430,6 +2701,130 @@ static void sep_configure_dma_burst(void)
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}
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/*
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function that is activaed on the succesfull probe of the SEP device
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*/
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static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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int error = 0;
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edbg("Sep pci probe starting\n");
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/* enable the device */
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error = pci_enable_device(pdev);
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if (error) {
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edbg("error enabling pci device\n");
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goto end_function;
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}
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/* set the pci dev pointer */
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sep_dev->sep_pci_dev_ptr = pdev;
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/* get the io memory start address */
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sep_dev->io_memory_start_physical_address = pci_resource_start(pdev, 0);
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if (!sep_dev->io_memory_start_physical_address) {
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edbg("SEP Driver error pci resource start\n");
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goto end_function;
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}
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/* get the io memory end address */
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sep_dev->io_memory_end_physical_address = pci_resource_end(pdev, 0);
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if (!sep_dev->io_memory_end_physical_address) {
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edbg("SEP Driver error pci resource end\n");
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goto end_function;
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}
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sep_dev->io_memory_size = sep_dev->io_memory_end_physical_address - sep_dev->io_memory_start_physical_address + 1;
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edbg("SEP Driver:io_memory_start_physical_address is %08lx\n", sep_dev->io_memory_start_physical_address);
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edbg("SEP Driver:io_memory_end_phyaical_address is %08lx\n", sep_dev->io_memory_end_physical_address);
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edbg("SEP Driver:io_memory_size is %08lx\n", sep_dev->io_memory_size);
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sep_dev->io_memory_start_virtual_address = ioremap_nocache(sep_dev->io_memory_start_physical_address, sep_dev->io_memory_size);
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if (!sep_dev->io_memory_start_virtual_address) {
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edbg("SEP Driver error ioremap of io memory\n");
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goto end_function;
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}
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edbg("SEP Driver:io_memory_start_virtual_address is %p\n", sep_dev->io_memory_start_virtual_address);
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sep_dev->reg_base_address = (void __iomem *) sep_dev->io_memory_start_virtual_address;
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/* set up system base address and shared memory location */
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sep_dev->rar_virtual_address = kmalloc(2 * SEP_RAR_IO_MEM_REGION_SIZE, GFP_KERNEL);
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if (!sep_dev->rar_virtual_address) {
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edbg("SEP Driver:cant kmalloc rar\n");
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goto end_function;
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}
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/* FIXME */
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sep_dev->rar_physical_address = __pa(sep_dev->rar_virtual_address);
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edbg("SEP Driver:rar_physical is %08lx\n", sep_dev->rar_physical_address);
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edbg("SEP Driver:rar_virtual is %p\n", sep_dev->rar_virtual_address);
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#if !SEP_DRIVER_POLLING_MODE
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edbg("SEP Driver: about to write IMR and ICR REG_ADDR\n");
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/* clear ICR register */
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sep_write_reg(sep_dev, HW_HOST_ICR_REG_ADDR, 0xFFFFFFFF);
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/* set the IMR register - open only GPR 2 */
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sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13)));
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/* figure out our irq */
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/* FIXME: */
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error = pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, (u8 *) & sep_dev->sep_irq);
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edbg("SEP Driver: my irq is %d\n", sep_irq);
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edbg("SEP Driver: about to call request_irq\n");
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/* get the interrupt line */
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error = request_irq(sep_irq, sep_inthandler, IRQF_SHARED, "sep_driver", &sep_dev->reg_base_address);
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if (error)
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goto end_function;
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goto end_function;
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edbg("SEP Driver: about to write IMR REG_ADDR");
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/* set the IMR register - open only GPR 2 */
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sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13)));
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#endif /* SEP_DRIVER_POLLING_MODE */
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end_function:
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return error;
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}
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static struct pci_device_id sep_pci_id_tbl[] = {
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{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080c)},
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||||
{0}
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, sep_pci_id_tbl);
|
||||
|
||||
/* field for registering driver to PCI device */
|
||||
static struct pci_driver sep_pci_driver = {
|
||||
.name = "sep_sec_driver",
|
||||
.id_table = sep_pci_id_tbl,
|
||||
.probe = sep_probe
|
||||
};
|
||||
|
||||
/*
|
||||
this function registers th driver to
|
||||
the device subsystem( either PCI, USB, etc)
|
||||
*/
|
||||
int sep_register_driver_to_device(void)
|
||||
{
|
||||
return pci_register_driver(&sep_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* major and minor device numbers */
|
||||
static dev_t sep_devno;
|
||||
|
||||
@ -1,460 +0,0 @@
|
||||
/*
|
||||
*
|
||||
* sep_ext_with_pci_driver.c - Security Processor Driver
|
||||
* pci initialization functions
|
||||
*
|
||||
* Copyright(c) 2009 Intel Corporation. All rights reserved.
|
||||
* Copyright(c) 2009 Discretix. All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the Free
|
||||
* Software Foundation; either version 2 of the License, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* 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., 59
|
||||
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*
|
||||
* CONTACTS:
|
||||
*
|
||||
* Mark Allyn mark.a.allyn@intel.com
|
||||
*
|
||||
* CHANGES:
|
||||
*
|
||||
* 2009.06.26 Initial publish
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/cdev.h>
|
||||
#include <linux/kdev_t.h>
|
||||
#include <linux/semaphore.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/poll.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/ioctl.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/pagemap.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/firmware.h>
|
||||
#include <linux/sched.h>
|
||||
#include "sep_driver_hw_defs.h"
|
||||
#include "sep_driver_config.h"
|
||||
#include "sep_driver_api.h"
|
||||
#include "sep_driver_ext_api.h"
|
||||
#include "sep_dev.h"
|
||||
|
||||
#if SEP_DRIVER_ARM_DEBUG_MODE
|
||||
|
||||
#define CRYS_SEP_ROM_length 0x4000
|
||||
#define CRYS_SEP_ROM_start_address 0x8000C000UL
|
||||
#define CRYS_SEP_ROM_start_address_offset 0xC000UL
|
||||
#define SEP_ROM_BANK_register 0x80008420UL
|
||||
#define SEP_ROM_BANK_register_offset 0x8420UL
|
||||
#define SEP_RAR_IO_MEM_REGION_START_ADDRESS 0x82000000
|
||||
|
||||
/*
|
||||
* THESE 2 definitions are specific to the board - must be
|
||||
* defined during integration
|
||||
*/
|
||||
#define SEP_RAR_IO_MEM_REGION_START_ADDRESS 0xFF0D0000
|
||||
|
||||
/* 2M size */
|
||||
|
||||
void sep_load_rom_code(void)
|
||||
{
|
||||
/* Index variables */
|
||||
unsigned long i, k, j;
|
||||
unsigned long regVal;
|
||||
unsigned long Error;
|
||||
unsigned long warning;
|
||||
|
||||
/* Loading ROM from SEP_ROM_image.h file */
|
||||
k = sizeof(CRYS_SEP_ROM);
|
||||
|
||||
edbg("SEP Driver: DX_CC_TST_SepRomLoader start\n");
|
||||
|
||||
edbg("SEP Driver: k is %lu\n", k);
|
||||
edbg("SEP Driver: sep_dev->reg_base_address is %p\n", sep_dev->reg_base_address);
|
||||
edbg("SEP Driver: CRYS_SEP_ROM_start_address_offset is %p\n", CRYS_SEP_ROM_start_address_offset);
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
/* write bank */
|
||||
sep_write_reg(sep_dev, SEP_ROM_BANK_register_offset, i);
|
||||
|
||||
for (j = 0; j < CRYS_SEP_ROM_length / 4; j++) {
|
||||
sep_write_reg(sep_dev, CRYS_SEP_ROM_start_address_offset + 4 * j, CRYS_SEP_ROM[i * 0x1000 + j]);
|
||||
|
||||
k = k - 4;
|
||||
|
||||
if (k == 0) {
|
||||
j = CRYS_SEP_ROM_length;
|
||||
i = 4;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* reset the SEP */
|
||||
sep_write_reg(sep_dev, HW_HOST_SEP_SW_RST_REG_ADDR, 0x1);
|
||||
|
||||
/* poll for SEP ROM boot finish */
|
||||
do {
|
||||
retVal = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR3_REG_ADDR);
|
||||
} while (!regVal);
|
||||
|
||||
edbg("SEP Driver: ROM polling ended\n");
|
||||
|
||||
switch (regVal) {
|
||||
case 0x1:
|
||||
/* fatal error - read erro status from GPRO */
|
||||
Error = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
|
||||
edbg("SEP Driver: ROM polling case 1\n");
|
||||
break;
|
||||
case 0x2:
|
||||
/* Boot First Phase ended */
|
||||
warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
|
||||
edbg("SEP Driver: ROM polling case 2\n");
|
||||
break;
|
||||
case 0x4:
|
||||
/* Cold boot ended successfully */
|
||||
warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
|
||||
edbg("SEP Driver: ROM polling case 4\n");
|
||||
Error = 0;
|
||||
break;
|
||||
case 0x8:
|
||||
/* Warmboot ended successfully */
|
||||
warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
|
||||
edbg("SEP Driver: ROM polling case 8\n");
|
||||
Error = 0;
|
||||
break;
|
||||
case 0x10:
|
||||
/* ColdWarm boot ended successfully */
|
||||
warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR);
|
||||
edbg("SEP Driver: ROM polling case 16\n");
|
||||
Error = 0;
|
||||
break;
|
||||
case 0x20:
|
||||
edbg("SEP Driver: ROM polling case 32\n");
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#else
|
||||
void sep_load_rom_code(void) { }
|
||||
#endif /* SEP_DRIVER_ARM_DEBUG_MODE */
|
||||
|
||||
#define BASE_ADDRESS_FOR_SYSTEM 0xfffc0000
|
||||
#define SEP_RAR_IO_MEM_REGION_SIZE 0x40000
|
||||
|
||||
irqreturn_t sep_inthandler(int irq, void *dev_id);
|
||||
|
||||
/* Keep this a single static object for now to keep the conversion easy */
|
||||
|
||||
static struct sep_device sep_instance;
|
||||
struct sep_device *sep_dev = &sep_instance;
|
||||
|
||||
/* temporary */
|
||||
unsigned long jiffies_future;
|
||||
|
||||
/*-----------------------------
|
||||
private functions
|
||||
--------------------------------*/
|
||||
|
||||
/*
|
||||
This functions locks the area of the resisnd and cache sep code
|
||||
*/
|
||||
void sep_lock_cache_resident_area(void)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
This functions copies the cache and resident from their source location into
|
||||
destination memory, which is external to Linux VM and is given as
|
||||
physical address
|
||||
*/
|
||||
int sep_copy_cache_resident_to_area(unsigned long src_cache_addr, unsigned long cache_size_in_bytes, unsigned long src_resident_addr, unsigned long resident_size_in_bytes, unsigned long *dst_new_cache_addr_ptr, unsigned long *dst_new_resident_addr_ptr)
|
||||
{
|
||||
unsigned long resident_addr;
|
||||
unsigned long cache_addr;
|
||||
const struct firmware *fw;
|
||||
|
||||
char *cache_name = "cache.image.bin";
|
||||
char *res_name = "resident.image.bin";
|
||||
|
||||
/* error */
|
||||
int error;
|
||||
|
||||
/*--------------------------------
|
||||
CODE
|
||||
-------------------------------------*/
|
||||
error = 0;
|
||||
|
||||
edbg("SEP Driver:rar_virtual is %p\n", sep_dev->rar_virtual_address);
|
||||
edbg("SEP Driver:rar_physical is %08lx\n", sep_dev->rar_physical_address);
|
||||
|
||||
sep_dev->rar_region_addr = (unsigned long) sep_dev->rar_virtual_address;
|
||||
|
||||
sep_dev->cache_physical_address = sep_dev->rar_physical_address;
|
||||
sep_dev->cache_virtual_address = sep_dev->rar_virtual_address;
|
||||
|
||||
/* load cache */
|
||||
error = request_firmware(&fw, cache_name, &sep_dev->sep_pci_dev_ptr->dev);
|
||||
if (error) {
|
||||
edbg("SEP Driver:cant request cache fw\n");
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
edbg("SEP Driver:cache data loc is %p\n", (void *) fw->data);
|
||||
edbg("SEP Driver:cache data size is %08Zx\n", fw->size);
|
||||
|
||||
memcpy((void *) sep_dev->cache_virtual_address, (void *) fw->data, fw->size);
|
||||
|
||||
sep_dev->cache_size = fw->size;
|
||||
|
||||
cache_addr = (unsigned long) sep_dev->cache_virtual_address;
|
||||
|
||||
release_firmware(fw);
|
||||
|
||||
sep_dev->resident_physical_address = sep_dev->cache_physical_address + sep_dev->cache_size;
|
||||
sep_dev->resident_virtual_address = sep_dev->cache_virtual_address + sep_dev->cache_size;
|
||||
|
||||
/* load resident */
|
||||
error = request_firmware(&fw, res_name, &sep_dev->sep_pci_dev_ptr->dev);
|
||||
if (error) {
|
||||
edbg("SEP Driver:cant request res fw\n");
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
edbg("SEP Driver:res data loc is %p\n", (void *) fw->data);
|
||||
edbg("SEP Driver:res data size is %08Zx\n", fw->size);
|
||||
|
||||
memcpy((void *) sep_dev->resident_virtual_address, (void *) fw->data, fw->size);
|
||||
|
||||
sep_dev->resident_size = fw->size;
|
||||
|
||||
release_firmware(fw);
|
||||
|
||||
resident_addr = (unsigned long) sep_dev->resident_virtual_address;
|
||||
|
||||
edbg("SEP Driver:resident_addr (physical )is %08lx\n", sep_dev->resident_physical_address);
|
||||
edbg("SEP Driver:cache_addr (physical) is %08lx\n", sep_dev->cache_physical_address);
|
||||
|
||||
edbg("SEP Driver:resident_addr (logical )is %08lx\n", resident_addr);
|
||||
edbg("SEP Driver:cache_addr (logical) is %08lx\n", cache_addr);
|
||||
|
||||
edbg("SEP Driver:resident_size is %08lx\n", sep_dev->resident_size);
|
||||
edbg("SEP Driver:cache_size is %08lx\n", sep_dev->cache_size);
|
||||
|
||||
|
||||
|
||||
/* physical addresses */
|
||||
*dst_new_cache_addr_ptr = sep_dev->cache_physical_address;
|
||||
*dst_new_resident_addr_ptr = sep_dev->resident_physical_address;
|
||||
end_function:
|
||||
return error;
|
||||
}
|
||||
|
||||
/*
|
||||
This functions maps and allocates the
|
||||
shared area on the external RAM (device)
|
||||
The input is shared_area_size - the size of the memory to
|
||||
allocate. The outputs
|
||||
are kernel_shared_area_addr_ptr - the kerenl
|
||||
address of the mapped and allocated
|
||||
shared area, and phys_shared_area_addr_ptr
|
||||
- the physical address of the shared area
|
||||
*/
|
||||
int sep_map_and_alloc_shared_area(unsigned long shared_area_size, unsigned long *kernel_shared_area_addr_ptr, unsigned long *phys_shared_area_addr_ptr)
|
||||
{
|
||||
// shared_virtual_address = ioremap_nocache(0xda00000,shared_area_size);
|
||||
sep_dev->shared_virtual_address = kmalloc(shared_area_size, GFP_KERNEL);
|
||||
if (!sep_dev->shared_virtual_address) {
|
||||
edbg("sep_driver:shared memory kmalloc failed\n");
|
||||
return -1;
|
||||
}
|
||||
/* FIXME */
|
||||
sep_dev->shared_physical_address = __pa(sep_dev->shared_virtual_address);
|
||||
/* shared_physical_address = 0xda00000; */
|
||||
*kernel_shared_area_addr_ptr = (unsigned long) sep_dev->shared_virtual_address;
|
||||
/* set the physical address of the shared area */
|
||||
*phys_shared_area_addr_ptr = sep_dev->shared_physical_address;
|
||||
edbg("SEP Driver:shared_virtual_address is %p\n", sep_dev->shared_virtual_address);
|
||||
edbg("SEP Driver:shared_region_size is %08lx\n", shared_area_size);
|
||||
edbg("SEP Driver:shared_physical_addr is %08lx\n", *phys_shared_area_addr_ptr);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
This functions unmaps and deallocates the shared area
|
||||
on the external RAM (device)
|
||||
The input is shared_area_size - the size of the memory to deallocate,kernel_
|
||||
shared_area_addr_ptr - the kernel address of the mapped and allocated
|
||||
shared area,phys_shared_area_addr_ptr - the physical address of
|
||||
the shared area
|
||||
*/
|
||||
void sep_unmap_and_free_shared_area(unsigned long shared_area_size, unsigned long kernel_shared_area_addr, unsigned long phys_shared_area_addr)
|
||||
{
|
||||
kfree((void *) kernel_shared_area_addr);
|
||||
}
|
||||
|
||||
/*
|
||||
This functions returns the physical address inside shared area according
|
||||
to the virtual address. It can be either on the externa RAM device
|
||||
(ioremapped), or on the system RAM
|
||||
This implementation is for the external RAM
|
||||
*/
|
||||
unsigned long sep_shared_area_virt_to_phys(unsigned long virt_address)
|
||||
{
|
||||
edbg("SEP Driver:sh virt to phys v %08lx\n", virt_address);
|
||||
edbg("SEP Driver:sh virt to phys p %08lx\n", sep_dev->shared_physical_address + (virt_address - (unsigned long) sep_dev->shared_virtual_address));
|
||||
|
||||
return (unsigned long) sep_dev->shared_physical_address + (virt_address - (unsigned long) sep_dev->shared_virtual_address);
|
||||
}
|
||||
|
||||
/*
|
||||
This functions returns the virtual address inside shared area
|
||||
according to the physical address. It can be either on the
|
||||
externa RAM device (ioremapped), or on the system RAM This implementation
|
||||
is for the external RAM
|
||||
*/
|
||||
unsigned long sep_shared_area_phys_to_virt(unsigned long phys_address)
|
||||
{
|
||||
return (unsigned long) sep_dev->shared_virtual_address + (phys_address - sep_dev->shared_physical_address);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
function that is activaed on the succesfull probe of the SEP device
|
||||
*/
|
||||
static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
int error = 0;
|
||||
|
||||
edbg("Sep pci probe starting\n");
|
||||
|
||||
/* enable the device */
|
||||
error = pci_enable_device(pdev);
|
||||
if (error) {
|
||||
edbg("error enabling pci device\n");
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
/* set the pci dev pointer */
|
||||
sep_dev->sep_pci_dev_ptr = pdev;
|
||||
|
||||
/* get the io memory start address */
|
||||
sep_dev->io_memory_start_physical_address = pci_resource_start(pdev, 0);
|
||||
if (!sep_dev->io_memory_start_physical_address) {
|
||||
edbg("SEP Driver error pci resource start\n");
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
/* get the io memory end address */
|
||||
sep_dev->io_memory_end_physical_address = pci_resource_end(pdev, 0);
|
||||
if (!sep_dev->io_memory_end_physical_address) {
|
||||
edbg("SEP Driver error pci resource end\n");
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
sep_dev->io_memory_size = sep_dev->io_memory_end_physical_address - sep_dev->io_memory_start_physical_address + 1;
|
||||
|
||||
edbg("SEP Driver:io_memory_start_physical_address is %08lx\n", sep_dev->io_memory_start_physical_address);
|
||||
|
||||
edbg("SEP Driver:io_memory_end_phyaical_address is %08lx\n", sep_dev->io_memory_end_physical_address);
|
||||
|
||||
edbg("SEP Driver:io_memory_size is %08lx\n", sep_dev->io_memory_size);
|
||||
|
||||
sep_dev->io_memory_start_virtual_address = ioremap_nocache(sep_dev->io_memory_start_physical_address, sep_dev->io_memory_size);
|
||||
if (!sep_dev->io_memory_start_virtual_address) {
|
||||
edbg("SEP Driver error ioremap of io memory\n");
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
edbg("SEP Driver:io_memory_start_virtual_address is %p\n", sep_dev->io_memory_start_virtual_address);
|
||||
|
||||
sep_dev->reg_base_address = (void __iomem *) sep_dev->io_memory_start_virtual_address;
|
||||
|
||||
|
||||
/* set up system base address and shared memory location */
|
||||
|
||||
sep_dev->rar_virtual_address = kmalloc(2 * SEP_RAR_IO_MEM_REGION_SIZE, GFP_KERNEL);
|
||||
|
||||
if (!sep_dev->rar_virtual_address) {
|
||||
edbg("SEP Driver:cant kmalloc rar\n");
|
||||
goto end_function;
|
||||
}
|
||||
/* FIXME */
|
||||
sep_dev->rar_physical_address = __pa(sep_dev->rar_virtual_address);
|
||||
|
||||
edbg("SEP Driver:rar_physical is %08lx\n", sep_dev->rar_physical_address);
|
||||
edbg("SEP Driver:rar_virtual is %p\n", sep_dev->rar_virtual_address);
|
||||
|
||||
#if !SEP_DRIVER_POLLING_MODE
|
||||
|
||||
edbg("SEP Driver: about to write IMR and ICR REG_ADDR\n");
|
||||
|
||||
/* clear ICR register */
|
||||
sep_write_reg(sep_dev, HW_HOST_ICR_REG_ADDR, 0xFFFFFFFF);
|
||||
|
||||
/* set the IMR register - open only GPR 2 */
|
||||
sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13)));
|
||||
|
||||
/* figure out our irq */
|
||||
/* FIXME: */
|
||||
error = pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, (u8 *) & sep_dev->sep_irq);
|
||||
|
||||
edbg("SEP Driver: my irq is %d\n", sep_irq);
|
||||
|
||||
edbg("SEP Driver: about to call request_irq\n");
|
||||
/* get the interrupt line */
|
||||
error = request_irq(sep_irq, sep_inthandler, IRQF_SHARED, "sep_driver", &sep_dev->reg_base_address);
|
||||
if (error)
|
||||
goto end_function;
|
||||
|
||||
goto end_function;
|
||||
edbg("SEP Driver: about to write IMR REG_ADDR");
|
||||
|
||||
/* set the IMR register - open only GPR 2 */
|
||||
sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13)));
|
||||
|
||||
#endif /* SEP_DRIVER_POLLING_MODE */
|
||||
end_function:
|
||||
return error;
|
||||
}
|
||||
|
||||
static struct pci_device_id sep_pci_id_tbl[] = {
|
||||
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080c)},
|
||||
{0}
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, sep_pci_id_tbl);
|
||||
|
||||
/* field for registering driver to PCI device */
|
||||
static struct pci_driver sep_pci_driver = {
|
||||
.name = "sep_sec_driver",
|
||||
.id_table = sep_pci_id_tbl,
|
||||
.probe = sep_probe
|
||||
};
|
||||
|
||||
/*
|
||||
this function registers th driver to
|
||||
the device subsystem( either PCI, USB, etc)
|
||||
*/
|
||||
int sep_register_driver_to_device(void)
|
||||
{
|
||||
return pci_register_driver(&sep_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user