| /* hbi_hal.h |
| * |
| * This file defines the interface between the VoicePath API and the Hardware |
| * Abstraction Layer (HAL). The types and functions declared in this file are |
| * platform-dependent. Porting the VoicePath API to a new host processor |
| * consists of modifying the typedefs in this file, setting the HBI_PINCONFIG |
| * define below, and modifying the function implementations in vp_hal.c. |
| * |
| * Copyright (c) 2008, Zarlink Semiconductor, Inc. |
| */ |
| #ifndef HBI_HAL_H |
| #define HBI_HAL_H |
| #include "vp_api_types.h" |
| /* Define the EXTERN macro, if necessary */ |
| #ifndef EXTERN |
| #ifdef __cplusplus |
| #define EXTERN extern "C" |
| #else |
| #define EXTERN extern |
| #endif /* __cplusplus */ |
| #endif /* EXTERN */ |
| /****************************************************************************** |
| * PLATFORM-SPECIFIC OPTIONS * |
| ******************************************************************************/ |
| /* HBI configuration register */ |
| #define HBI_CFG_ENDLITTLE 0 /* 1=byte swapping for data words only */ |
| #define HBI_CFG_PWAIT_POLHI 0 /* 0=PWAIT pin active low, 1=PWAIT pin active high */ |
| #define HBI_CFG_PWAIT_EN 0 /* 0=PWAIT pin disabled, 1=PWAIT pin enabled */ |
| #define HBI_CFG_PWAIT_MODEOSD 0 /* 0=PWAIT pin TTL, 1=PWAIT pin open source/drain */ |
| #define HBI_CFG_INT_MODETTL 1 /* 0=INT pin open drain, 1=INT pin TTL */ |
| #define HBI_CFG_PINEA 0 /* 0=IO[2:0], 1=EA[10:8] */ |
| #define HBI_PINCONFIG (HBI_CFG_ENDLITTLE | (HBI_CFG_PWAIT_POLHI << 1) | (HBI_CFG_PWAIT_EN << 2) | \ |
| (HBI_CFG_PWAIT_MODEOSD << 3) | (HBI_CFG_INT_MODETTL << 4) | (HBI_CFG_PINEA << 5)) |
| #define HBI_CMD_CONFIGURE_INT 0xFD00 |
| #define DEFAULT_DEVICE_ID 0 |
| /****************************************************************************** |
| * PLATFORM-SPECIFIC FUNCTIONS * |
| ******************************************************************************/ |
| /* See vp_hal.c for descriptions. */ |
| EXTERN uint8 VpHalHbiInit(VpDeviceIdType deviceId); |
| EXTERN uint8 VpHalHbiCmd(VpDeviceIdType deviceId, uint16 cmd); |
| EXTERN uint8 VpHalHbiWrite(VpDeviceIdType deviceId, uint16 cmd, uint8 numwords, uint16p data); |
| EXTERN uint8 VpHalHbiRead(VpDeviceIdType deviceId, uint16 cmd, uint8 numwords, uint16p data); |
| #endif /* HBI_HAL_H */ |
| |
