drivers/char/tpm/tpm_i2c_stm_st33.h

   1 /*
   2  * STMicroelectronics TPM I2C Linux driver for TPM ST33ZP24
   3  * Copyright (C) 2009, 2010  STMicroelectronics
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * STMicroelectronics version 1.2.0, Copyright (C) 2010
  20  * STMicroelectronics comes with ABSOLUTELY NO WARRANTY.
  21  * This is free software, and you are welcome to redistribute it
  22  * under certain conditions.
  23  *
  24  * @Author: Christophe RICARD tpmsupport@st.com
  25  *
  26  * @File: stm_st33_tpm_i2c.h
  27  *
  28  * @Date: 09/15/2010
  29  */
  30 #ifndef __STM_ST33_TPM_I2C_MAIN_H__
  31 #define __STM_ST33_TPM_I2C_MAIN_H__
  32
  33 #define TPM_ACCESS                      (0x0)
  34 #define TPM_STS                         (0x18)
  35 #define TPM_HASH_END                    (0x20)
  36 #define TPM_DATA_FIFO                   (0x24)
  37 #define TPM_HASH_DATA                   (0x24)
  38 #define TPM_HASH_START                  (0x28)
  39 #define TPM_INTF_CAPABILITY             (0x14)
  40 #define TPM_INT_STATUS                  (0x10)
  41 #define TPM_INT_ENABLE                  (0x08)
  42
  43 #define TPM_DUMMY_BYTE                  0xAA
  44 #define TPM_WRITE_DIRECTION             0x80
  45 #define TPM_HEADER_SIZE                 10
  46 #define TPM_BUFSIZE                     2048
  47
  48 #define LOCALITY0               0
  49
  50 #define TPM_ST33_I2C                    "st33zp24_i2c"
  51
  52 struct st33zp24_platform_data {
  53         int io_serirq;
  54         int io_lpcpd;
  55         struct i2c_client *client;
  56         u8 *tpm_i2c_buffer[2]; /* 0 Request 1 Response */
  57         struct completion irq_detection;
  58         struct mutex lock;
  59 };
  60
  61 #endif /* __STM_ST33_TPM_I2C_MAIN_H__ */