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Diffstat (limited to 'arch/arm/plat-mxc/sdma/iapi/include/iapiDefaults.h')
-rw-r--r-- | arch/arm/plat-mxc/sdma/iapi/include/iapiDefaults.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/sdma/iapi/include/iapiDefaults.h b/arch/arm/plat-mxc/sdma/iapi/include/iapiDefaults.h new file mode 100644 index 000000000000..6ce00b8da5bb --- /dev/null +++ b/arch/arm/plat-mxc/sdma/iapi/include/iapiDefaults.h @@ -0,0 +1,126 @@ +/****************************************************************************** + * + * Copyright 2007-2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + * + ****************************************************************************** + * + * File: iapiDefaults.h + * + * $Id iapiDefaults.h $ + * + * Description: + * This library is written in C to guarantee functionality and integrity in + * the usage of SDMA virtual DMA channels. This API (Application Programming + * Interface) allow SDMA channels' access in an OPEN, READ, WRITE, CLOSE + * fashion. + * + * + * + * + * $Log iapiDefaults.h $ + * + *****************************************************************************/ + +#ifndef _iapi_defaults_h +#define _iapi_defaults_h + +/****************************************************************************** + * Include File Section + *****************************************************************************/ +#include "epm.h" +#include "sdmaStruct.h" + +/* **************************************************************************** + * Macro-command Section + * ***************************************************************************/ + +/** + * Error codes + * lower 5 bits free to include channel number when available + * and bit number 6 must be set when channel number is available + * + * Note : + * 1) Abbreviations / naming convention : + * - BD : Buffer Descriptor + * - CC : Channel Context + * - CCB : Channel Control Block + * - CD : Channel Descriptor + * - B : Buffer + * - CH : Channel + * + */ +#define IAPI_SUCCESS 0 +#define IAPI_FAILURE -1 +#define IAPI_ERR_CH_AVAILABLE 0x00020 +#define IAPI_ERR_NO_ERROR 0x00000 +#define IAPI_ERR_NO_CCB_DEFINED 0x01000 +#define IAPI_ERR_BD_UNINITIALIZED 0x02000 +#define IAPI_ERR_BD_ALLOCATED 0x03000 +#define IAPI_ERR_BD_ALLOCATION 0x04000 +#define IAPI_ERR_CCB_ALLOC_FAILED 0x05000 +#define IAPI_ERR_CCB_UNINITIALIZED 0x06000 +#define IAPI_ERR_CC_ALREADY_DEFINED 0x07000 +#define IAPI_ERR_CC_ALLOC_FAILED 0x08000 +#define IAPI_ERR_CD_ALREADY_DEFINED 0x09000 +#define IAPI_ERR_CD_ALLOC_FAILED 0x0A000 +#define IAPI_ERR_CD_CHANGE_CH_NUMBER 0x0B000 +#define IAPI_ERR_CD_CHANGE_CCB_PTR 0x0C000 +#define IAPI_ERR_CD_CHANGE_UNKNOWN 0x0D000 +#define IAPI_ERR_CD_CHANGE 0x0E000 +#define IAPI_ERR_CD_UNINITIALIZED 0x0F000 +#define IAPI_ERR_CLOSE 0x10000 +#define IAPI_ERR_B_ALLOC_FAILED 0x11000 +#define IAPI_ERR_CONFIG_OVERRIDE 0x12000 +#define IAPI_ERR_CH_IN_USE 0x13000 +#define IAPI_ERR_CALLBACKSYNCH_UNKNOWN 0x14000 +#define IAPI_ERR_INVALID_PARAMETER 0x15000 +#define IAPI_ERR_TRUST 0x16000 +#define IAPI_ERR_CHANNEL_UNINITIALIZED 0x17000 +#define IAPI_ERR_RROR_BIT_READ 0x18000 +#define IAPI_ERR_RROR_BIT_WRITE 0x19000 +#define IAPI_ERR_NOT_ALLOWED 0x1A000 +#define IAPI_ERR_NO_OS_FN 0x1B000 + +/* + * Global Variable Section + */ + +/* + * Table to hold pointers to the callback functions registered by the users of + *I.API + */ +extern void (*callbackIsrTable[CH_NUM]) (channelDescriptor * cd_p, void *arg); + +/* + * Table to hold user registered data pointers, to be privided in the callback + *function + */ +extern void *userArgTable[CH_NUM]; + +/* channelDescriptor data structure filled with default data*/ +extern channelDescriptor iapi_ChannelDefaults; + +/* Global variable to hold the last error encountered in I.API operations*/ +extern unsigned int iapi_errno; + +/* Used in synchronization, to mark started channels*/ +extern volatile unsigned long iapi_SDMAIntr; + +/* Hold a pointer to the start of the CCB array, to be used in the IRQ routine + *to find the channel descriptor for the channed sending the interrupt to the + *core. + */ +extern channelControlBlock *iapi_CCBHead; + +/* configs_data structure filled with default data*/ +extern configs_data iapi_ConfigDefaults; + +#endif /* iapiDefaults_h */ |