diff options
Diffstat (limited to 'arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h')
| -rw-r--r-- | arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h b/arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h deleted file mode 100644 index 9d9455e0c391..000000000000 --- a/arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h +++ /dev/null @@ -1,145 +0,0 @@ -/***************************************************************************** -* Copyright 2004 - 2008 Broadcom Corporation. All rights reserved. -* -* Unless you and Broadcom execute a separate written software license -* agreement governing use of this software, this software is licensed to you -* under the terms of the GNU General Public License version 2, available at -* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). -* -* Notwithstanding the above, under no circumstances may you combine this -* software in any way with any other Broadcom software provided under a -* license other than the GPL, without Broadcom's express prior written -* consent. -*****************************************************************************/ - -/****************************************************************************/ -/** -* @file dmacHw_priv.h -* -* @brief Private Definitions for low level DMA driver -* -*/ -/****************************************************************************/ - -#ifndef _DMACHW_PRIV_H -#define _DMACHW_PRIV_H - -#include <linux/types.h> - -/* Data type for DMA Link List Item */ -typedef struct { - uint32_t sar; /* Source Address Register. - Address must be aligned to CTLx.SRC_TR_WIDTH. */ - uint32_t dar; /* Destination Address Register. - Address must be aligned to CTLx.DST_TR_WIDTH. */ - uint32_t llpPhy; /* LLP contains the physical address of the next descriptor for block chaining using linked lists. - Address MUST be aligned to a 32-bit boundary. */ - dmacHw_REG64_t ctl; /* Control Register. 64 bits */ - uint32_t sstat; /* Source Status Register */ - uint32_t dstat; /* Destination Status Register */ - uint32_t devCtl; /* Device specific control information */ - uint32_t llp; /* LLP contains the virtual address of the next descriptor for block chaining using linked lists. */ -} dmacHw_DESC_t; - -/* - * Descriptor ring pointers - */ -typedef struct { - int num; /* Number of link items */ - dmacHw_DESC_t *pHead; /* Head of descriptor ring (for writing) */ - dmacHw_DESC_t *pTail; /* Tail of descriptor ring (for reading) */ - dmacHw_DESC_t *pProg; /* Descriptor to program the channel (for programming the channel register) */ - dmacHw_DESC_t *pEnd; /* End of current descriptor chain */ - dmacHw_DESC_t *pFree; /* Descriptor to free memory (freeing dynamic memory) */ - uint32_t virt2PhyOffset; /* Virtual to physical address offset for the descriptor ring */ -} dmacHw_DESC_RING_t; - -/* - * DMA channel control block - */ -typedef struct { - uint32_t module; /* DMA controller module (0-1) */ - uint32_t channel; /* DMA channel (0-7) */ - volatile uint32_t varDataStarted; /* Flag indicating variable data channel is enabled */ - volatile uint32_t descUpdated; /* Flag to indicate descriptor update is complete */ - void *userData; /* Channel specifc user data */ -} dmacHw_CBLK_t; - -#define dmacHw_ASSERT(a) if (!(a)) while (1) -#define dmacHw_MAX_CHANNEL_COUNT 16 -#define dmacHw_FREE_USER_MEMORY 0xFFFFFFFF -#define dmacHw_DESC_FREE dmacHw_REG_CTL_DONE -#define dmacHw_DESC_INIT ((dmacHw_DESC_t *) 0xFFFFFFFF) -#define dmacHw_MAX_BLOCKSIZE 4064 -#define dmacHw_GET_DESC_RING(addr) (dmacHw_DESC_RING_t *)(addr) -#define dmacHw_ADDRESS_MASK(byte) ((byte) - 1) -#define dmacHw_NEXT_DESC(rp, dp) ((rp)->dp = (dmacHw_DESC_t *)(rp)->dp->llp) -#define dmacHw_HANDLE_TO_CBLK(handle) ((dmacHw_CBLK_t *) (handle)) -#define dmacHw_CBLK_TO_HANDLE(cblkp) ((dmacHw_HANDLE_t) (cblkp)) -#define dmacHw_DST_IS_MEMORY(tt) (((tt) == dmacHw_TRANSFER_TYPE_PERIPHERAL_TO_MEM) || ((tt) == dmacHw_TRANSFER_TYPE_MEM_TO_MEM)) ? 1 : 0 - -/****************************************************************************/ -/** -* @brief Get next available transaction width -* -* -* @return On success : Next available transaction width -* On failure : dmacHw_TRANSACTION_WIDTH_8 -* -* @note -* None -*/ -/****************************************************************************/ -static inline dmacHw_TRANSACTION_WIDTH_e dmacHw_GetNextTrWidth(dmacHw_TRANSACTION_WIDTH_e tw /* [ IN ] Current transaction width */ - ) { - if (tw & dmacHw_REG_CTL_SRC_TR_WIDTH_MASK) { - return ((tw >> dmacHw_REG_CTL_SRC_TR_WIDTH_SHIFT) - - 1) << dmacHw_REG_CTL_SRC_TR_WIDTH_SHIFT; - } else if (tw & dmacHw_REG_CTL_DST_TR_WIDTH_MASK) { - return ((tw >> dmacHw_REG_CTL_DST_TR_WIDTH_SHIFT) - - 1) << dmacHw_REG_CTL_DST_TR_WIDTH_SHIFT; - } - - /* Default return */ - return dmacHw_SRC_TRANSACTION_WIDTH_8; -} - -/****************************************************************************/ -/** -* @brief Get number of bytes per transaction -* -* @return Number of bytes per transaction -* -* -* @note -* None -*/ -/****************************************************************************/ -static inline int dmacHw_GetTrWidthInBytes(dmacHw_TRANSACTION_WIDTH_e tw /* [ IN ] Transaction width */ - ) { - int width = 1; - switch (tw) { - case dmacHw_SRC_TRANSACTION_WIDTH_8: - width = 1; - break; - case dmacHw_SRC_TRANSACTION_WIDTH_16: - case dmacHw_DST_TRANSACTION_WIDTH_16: - width = 2; - break; - case dmacHw_SRC_TRANSACTION_WIDTH_32: - case dmacHw_DST_TRANSACTION_WIDTH_32: - width = 4; - break; - case dmacHw_SRC_TRANSACTION_WIDTH_64: - case dmacHw_DST_TRANSACTION_WIDTH_64: - width = 8; - break; - default: - dmacHw_ASSERT(0); - } - - /* Default transaction width */ - return width; -} - -#endif /* _DMACHW_PRIV_H */ |