| /* |
| * Copyright 2010-2014,2018-2020 NXP |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * \addtogroup eSe_PAL_I2C |
| * \brief PAL I2C port implementation for linux |
| * @{ */ |
| #ifndef _PHNXPESE_PAL_I2C_H |
| #define _PHNXPESE_PAL_I2C_H |
| |
| /* Basic type definitions */ |
| #include <phEseTypes.h> |
| |
| |
| /*! |
| * \brief ESE Poll timeout (min 1 miliseconds) |
| */ |
| #define ESE_POLL_DELAY_MS (1) |
| /*! |
| * \brief ESE Poll timeout (max 2 seconds). |
| * Increased to 500. Need more timeout for RSA operations. We get NACK before WTX |
| */ |
| #define ESE_NAD_POLLING_MAX (2*250) |
| /*! |
| * \brief Max retry count for Write |
| */ |
| #define MAX_RETRY_COUNT 3 |
| |
| /*! |
| * \brief ESE wakeup delay in case of write error retry |
| */ |
| #define WAKE_UP_DELAY_MS 5 //5 ms |
| /*! |
| * \brief ESE wakeup delay in case of write error retry |
| */ |
| #define NAD_POLLING_SCALER 1 |
| /*! |
| * \brief ESE wakeup delay in case of write error retry |
| */ |
| #define CHAINED_PKT_SCALER 1 |
| /*! |
| * \brief This function is used to set slave address of ESE |
| * |
| */ |
| // #define I2C_MASTER_SLAVE_ADDR_7BIT (0x90U >> 1) //slve bit address is 20U but driver do right shift so set to 40U |
| #define SMCOM_I2C_ADDRESS (0x90) |
| |
| /*! |
| * \ingroup eSe_PAL_I2C |
| * |
| * \brief PAL Configuration exposed to upper layer. |
| */ |
| typedef struct phPalEse_Config |
| { |
| int8_t *pDevName; |
| /*!< Port name connected to ESE |
| * |
| * Platform specific canonical device name to which ESE is connected. |
| * |
| * e.g. On Linux based systems this would be /dev/p73 |
| */ |
| |
| int8_t DeviceAddress; |
| /*!< I2C Address of SE connected |
| */ |
| |
| uint32_t dwBaudRate; |
| /*!< Communication speed between DH and ESE |
| * |
| * This is the baudrate of the bus for communication between DH and ESE |
| */ |
| |
| void *pDevHandle; |
| /*!< Device handle output */ |
| } phPalEse_Config_t,*pphPalEse_Config_t; /* pointer to phPalEse_Config_t */ |
| |
| void phPalEse_i2c_close(void *pDevHandle); |
| ESESTATUS phPalEse_i2c_open_and_configure(pphPalEse_Config_t pConfig); |
| int phPalEse_i2c_read(void *pDevHandle, uint8_t * pBuffer, int nNbBytesToRead); |
| int phPalEse_i2c_write(void *pDevHandle,uint8_t * pBuffer, int nNbBytesToWrite); |
| /** @} */ |
| #endif /* _PHNXPESE_PAL_I2C_H */ |
