diff options
Diffstat (limited to 'drivers/staging/sep/sep_driver_api.h')
| -rw-r--r-- | drivers/staging/sep/sep_driver_api.h | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/drivers/staging/sep/sep_driver_api.h b/drivers/staging/sep/sep_driver_api.h new file mode 100644 index 0000000..fbbfa23 --- /dev/null +++ b/drivers/staging/sep/sep_driver_api.h @@ -0,0 +1,297 @@ +/* + * + * sep_driver_api.h - Security Processor Driver api definitions + * + * Copyright(c) 2009,2010 Intel Corporation. All rights reserved. + * Contributions(c) 2009,2010 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; version 2 of the License. + * + * 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 + * Jayant Mangalampalli jayant.mangalampalli@intel.com + * + * CHANGES: + * + * 2010.09.14 Upgrade to Medfield + * + */ + +#ifndef __SEP_DRIVER_API_H__ +#define __SEP_DRIVER_API_H__ + +/* Type of request from device */ +#define SEP_DRIVER_SRC_REPLY 1 +#define SEP_DRIVER_SRC_REQ 2 +#define SEP_DRIVER_SRC_PRINTF 3 + + +/*------------------------------------------- + TYPEDEFS +----------------------------------------------*/ + +/* + * Note that several members of these structres are only here + * for campatability with the middleware; they are not used + * by this driver. + * All user space buffer addresses are set to aligned u64 + * in order to ensure compatibility with 64 bit systems + */ + +/* + init command struct; this will go away when SCU does init +*/ +struct init_struct { + /* address that SEP can access for message */ + aligned_u64 message_addr; + + /* message size */ + u32 message_size_in_words; + + /* offset of the init message in the sep sram */ + u32 sep_sram_addr; + + /* -not used- resident size in bytes*/ + u32 unused_resident_size_in_bytes; + + /* -not used- cache size in bytes*/ + u32 unused_cache_size_in_bytes; + + /* -not used- ext cache current address */ + aligned_u64 unused_extcache_addr; + + /* -not used- ext cache size in bytes*/ + u32 unused_extcache_size_in_bytes; +}; + +struct realloc_ext_struct { + /* -not used- current external cache address */ + aligned_u64 unused_ext_cache_addr; + + /* -not used- external cache size in bytes*/ + u32 unused_ext_cache_size_in_bytes; +}; + +struct alloc_struct { + /* offset from start of shared pool area */ + u32 offset; + /* number of bytes to allocate */ + u32 num_bytes; +}; + +/* + Note that all app addresses are cast as u32; the sep + middleware sends them as fixed 32 bit words +*/ +struct bld_syn_tab_struct { + /* address value of the data in (user space addr) */ + aligned_u64 app_in_address; + + /* size of data in */ + u32 data_in_size; + + /* address of the data out (user space addr) */ + aligned_u64 app_out_address; + + /* the size of the block of the operation - if needed, + every table will be modulo this parameter */ + u32 block_size; + + /* -not used- distinct user/kernel layout */ + bool isKernelVirtualAddress; + +}; + +/* command struct for getting caller id value and address */ +struct caller_id_struct { + /* pid of the process */ + u32 pid; + /* virtual address of the caller id hash */ + aligned_u64 callerIdAddress; + /* caller id hash size in bytes */ + u32 callerIdSizeInBytes; +}; + +/* + structure that represents DCB +*/ +struct sep_dcblock { + /* physical address of the first input mlli */ + u32 input_mlli_address; + /* num of entries in the first input mlli */ + u32 input_mlli_num_entries; + /* size of data in the first input mlli */ + u32 input_mlli_data_size; + /* physical address of the first output mlli */ + u32 output_mlli_address; + /* num of entries in the first output mlli */ + u32 output_mlli_num_entries; + /* size of data in the first output mlli */ + u32 output_mlli_data_size; + /* pointer to the output virtual tail */ + u32 out_vr_tail_pt; + /* size of tail data */ + u32 tail_data_size; + /* input tail data array */ + u8 tail_data[64]; +}; + +struct sep_caller_id_entry { + int pid; + unsigned char callerIdHash[SEP_CALLER_ID_HASH_SIZE_IN_BYTES]; +}; + +/* + command structure for building dcb block (currently for ext app only +*/ +struct build_dcb_struct { + /* address value of the data in */ + aligned_u64 app_in_address; + /* size of data in */ + u32 data_in_size; + /* address of the data out */ + aligned_u64 app_out_address; + /* the size of the block of the operation - if needed, + every table will be modulo this parameter */ + u32 block_size; + /* the size of the block of the operation - if needed, + every table will be modulo this parameter */ + u32 tail_block_size; +}; + +/** + * @struct sep_dma_map + * + * Structure that contains all information needed for mapping the user pages + * or kernel buffers for dma operations + * + * + */ +struct sep_dma_map { + /* mapped dma address */ + dma_addr_t dma_addr; + /* size of the mapped data */ + size_t size; +}; + +struct sep_dma_resource { + /* array of pointers to the pages that represent + input data for the synchronic DMA action */ + struct page **in_page_array; + + /* array of pointers to the pages that represent out + data for the synchronic DMA action */ + struct page **out_page_array; + + /* number of pages in the sep_in_page_array */ + u32 in_num_pages; + + /* number of pages in the sep_out_page_array */ + u32 out_num_pages; + + /* map array of the input data */ + struct sep_dma_map *in_map_array; + + /* map array of the output data */ + struct sep_dma_map *out_map_array; + + /* number of entries of the input mapp array */ + u32 in_map_num_entries; + + /* number of entries of the output mapp array */ + u32 out_map_num_entries; +}; + + +/* command struct for translating rar handle to bus address + and setting it at predefined location */ +struct rar_hndl_to_bus_struct { + + /* rar handle */ + aligned_u64 rar_handle; +}; + +/* + structure that represent one entry in the DMA LLI table +*/ +struct sep_lli_entry { + /* physical address */ + u32 bus_address; + + /* block size */ + u32 block_size; +}; + +/*---------------------------------------------------------------- + IOCTL command defines + -----------------------------------------------------------------*/ + +/* magic number 1 of the sep IOCTL command */ +#define SEP_IOC_MAGIC_NUMBER 's' + +/* sends interrupt to sep that message is ready */ +#define SEP_IOCSENDSEPCOMMAND \ + _IO(SEP_IOC_MAGIC_NUMBER, 0) + +/* sends interrupt to sep that message is ready */ +#define SEP_IOCSENDSEPRPLYCOMMAND \ + _IO(SEP_IOC_MAGIC_NUMBER, 1) + +/* allocate memory in data pool */ +#define SEP_IOCALLOCDATAPOLL \ + _IOW(SEP_IOC_MAGIC_NUMBER, 2, struct alloc_struct) + +/* create sym dma lli tables */ +#define SEP_IOCCREATESYMDMATABLE \ + _IOW(SEP_IOC_MAGIC_NUMBER, 5, struct bld_syn_tab_struct) + +/* free dynamic data aalocated during table creation */ +#define SEP_IOCFREEDMATABLEDATA \ + _IO(SEP_IOC_MAGIC_NUMBER, 7) + +/* get the static pool area addersses (physical and virtual) */ +#define SEP_IOCGETSTATICPOOLADDR \ + _IO(SEP_IOC_MAGIC_NUMBER, 8) + +/* start sep command */ +#define SEP_IOCSEPSTART \ + _IO(SEP_IOC_MAGIC_NUMBER, 12) + +/* init sep command */ +#define SEP_IOCSEPINIT \ + _IOW(SEP_IOC_MAGIC_NUMBER, 13, struct init_struct) + +/* end transaction command */ +#define SEP_IOCENDTRANSACTION \ + _IO(SEP_IOC_MAGIC_NUMBER, 15) + +/* reallocate external app; unused structure still needed for + * compatability with middleware */ +#define SEP_IOCREALLOCEXTCACHE \ + _IOW(SEP_IOC_MAGIC_NUMBER, 18, struct realloc_ext_struct) + +#define SEP_IOCRARPREPAREMESSAGE \ + _IOW(SEP_IOC_MAGIC_NUMBER, 20, struct rar_hndl_to_bus_struct) + +#define SEP_IOCTLSETCALLERID \ + _IOW(SEP_IOC_MAGIC_NUMBER, 34, struct caller_id_struct) + +#define SEP_IOCPREPAREDCB \ + _IOW(SEP_IOC_MAGIC_NUMBER, 35, struct build_dcb_struct) + +#define SEP_IOCFREEDCB \ + _IO(SEP_IOC_MAGIC_NUMBER, 36) + +#endif |