diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-bcmring/include/csp/dmacHw.h | 596 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h | 145 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/include/mach/csp/dmacHw_reg.h | 406 |
3 files changed, 1147 insertions, 0 deletions
diff --git a/arch/arm/mach-bcmring/include/csp/dmacHw.h b/arch/arm/mach-bcmring/include/csp/dmacHw.h new file mode 100644 index 00000000000..5d510130a25 --- /dev/null +++ b/arch/arm/mach-bcmring/include/csp/dmacHw.h @@ -0,0 +1,596 @@ +/***************************************************************************** +* 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.h +* +* @brief API definitions for low level DMA controller driver +* +*/ +/****************************************************************************/ +#ifndef _DMACHW_H +#define _DMACHW_H + +#include <stddef.h> + +#include <csp/stdint.h> +#include <mach/csp/dmacHw_reg.h> + +/* Define DMA Channel ID using DMA controller number (m) and channel number (c). + + System specific channel ID should be defined as follows + + For example: + + #include <dmacHw.h> + ... + #define systemHw_LCD_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(0,5) + #define systemHw_SWITCH_RX_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(0,0) + #define systemHw_SWITCH_TX_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(0,1) + #define systemHw_APM_RX_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(0,3) + #define systemHw_APM_TX_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(0,4) + ... + #define systemHw_SHARED1_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(1,4) + #define systemHw_SHARED2_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(1,5) + #define systemHw_SHARED3_CHANNEL_ID dmacHw_MAKE_CHANNEL_ID(0,6) + ... +*/ +#define dmacHw_MAKE_CHANNEL_ID(m, c) (m << 8 | c) + +typedef enum { + dmacHw_CHANNEL_PRIORITY_0 = dmacHw_REG_CFG_LO_CH_PRIORITY_0, /* Channel priority 0. Lowest priority DMA channel */ + dmacHw_CHANNEL_PRIORITY_1 = dmacHw_REG_CFG_LO_CH_PRIORITY_1, /* Channel priority 1 */ + dmacHw_CHANNEL_PRIORITY_2 = dmacHw_REG_CFG_LO_CH_PRIORITY_2, /* Channel priority 2 */ + dmacHw_CHANNEL_PRIORITY_3 = dmacHw_REG_CFG_LO_CH_PRIORITY_3, /* Channel priority 3 */ + dmacHw_CHANNEL_PRIORITY_4 = dmacHw_REG_CFG_LO_CH_PRIORITY_4, /* Channel priority 4 */ + dmacHw_CHANNEL_PRIORITY_5 = dmacHw_REG_CFG_LO_CH_PRIORITY_5, /* Channel priority 5 */ + dmacHw_CHANNEL_PRIORITY_6 = dmacHw_REG_CFG_LO_CH_PRIORITY_6, /* Channel priority 6 */ + dmacHw_CHANNEL_PRIORITY_7 = dmacHw_REG_CFG_LO_CH_PRIORITY_7 /* Channel priority 7. Highest priority DMA channel */ +} dmacHw_CHANNEL_PRIORITY_e; + +/* Source destination master interface */ +typedef enum { + dmacHw_SRC_MASTER_INTERFACE_1 = dmacHw_REG_CTL_SMS_1, /* Source DMA master interface 1 */ + dmacHw_SRC_MASTER_INTERFACE_2 = dmacHw_REG_CTL_SMS_2, /* Source DMA master interface 2 */ + dmacHw_DST_MASTER_INTERFACE_1 = dmacHw_REG_CTL_DMS_1, /* Destination DMA master interface 1 */ + dmacHw_DST_MASTER_INTERFACE_2 = dmacHw_REG_CTL_DMS_2 /* Destination DMA master interface 2 */ +} dmacHw_MASTER_INTERFACE_e; + +typedef enum { + dmacHw_SRC_TRANSACTION_WIDTH_8 = dmacHw_REG_CTL_SRC_TR_WIDTH_8, /* Source 8 bit (1 byte) per transaction */ + dmacHw_SRC_TRANSACTION_WIDTH_16 = dmacHw_REG_CTL_SRC_TR_WIDTH_16, /* Source 16 bit (2 byte) per transaction */ + dmacHw_SRC_TRANSACTION_WIDTH_32 = dmacHw_REG_CTL_SRC_TR_WIDTH_32, /* Source 32 bit (4 byte) per transaction */ + dmacHw_SRC_TRANSACTION_WIDTH_64 = dmacHw_REG_CTL_SRC_TR_WIDTH_64, /* Source 64 bit (8 byte) per transaction */ + dmacHw_DST_TRANSACTION_WIDTH_8 = dmacHw_REG_CTL_DST_TR_WIDTH_8, /* Destination 8 bit (1 byte) per transaction */ + dmacHw_DST_TRANSACTION_WIDTH_16 = dmacHw_REG_CTL_DST_TR_WIDTH_16, /* Destination 16 bit (2 byte) per transaction */ + dmacHw_DST_TRANSACTION_WIDTH_32 = dmacHw_REG_CTL_DST_TR_WIDTH_32, /* Destination 32 bit (4 byte) per transaction */ + dmacHw_DST_TRANSACTION_WIDTH_64 = dmacHw_REG_CTL_DST_TR_WIDTH_64 /* Destination 64 bit (8 byte) per transaction */ +} dmacHw_TRANSACTION_WIDTH_e; + +typedef enum { + dmacHw_SRC_BURST_WIDTH_0 = dmacHw_REG_CTL_SRC_MSIZE_0, /* Source No burst */ + dmacHw_SRC_BURST_WIDTH_4 = dmacHw_REG_CTL_SRC_MSIZE_4, /* Source 4 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */ + dmacHw_SRC_BURST_WIDTH_8 = dmacHw_REG_CTL_SRC_MSIZE_8, /* Source 8 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */ + dmacHw_SRC_BURST_WIDTH_16 = dmacHw_REG_CTL_SRC_MSIZE_16, /* Source 16 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */ + dmacHw_DST_BURST_WIDTH_0 = dmacHw_REG_CTL_DST_MSIZE_0, /* Destination No burst */ + dmacHw_DST_BURST_WIDTH_4 = dmacHw_REG_CTL_DST_MSIZE_4, /* Destination 4 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */ + dmacHw_DST_BURST_WIDTH_8 = dmacHw_REG_CTL_DST_MSIZE_8, /* Destination 8 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */ + dmacHw_DST_BURST_WIDTH_16 = dmacHw_REG_CTL_DST_MSIZE_16 /* Destination 16 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */ +} dmacHw_BURST_WIDTH_e; + +typedef enum { + dmacHw_TRANSFER_TYPE_MEM_TO_MEM = dmacHw_REG_CTL_TTFC_MM_DMAC, /* Memory to memory transfer */ + dmacHw_TRANSFER_TYPE_PERIPHERAL_TO_MEM = dmacHw_REG_CTL_TTFC_PM_DMAC, /* Peripheral to memory transfer */ + dmacHw_TRANSFER_TYPE_MEM_TO_PERIPHERAL = dmacHw_REG_CTL_TTFC_MP_DMAC, /* Memory to peripheral transfer */ + dmacHw_TRANSFER_TYPE_PERIPHERAL_TO_PERIPHERAL = dmacHw_REG_CTL_TTFC_PP_DMAC /* Peripheral to peripheral transfer */ +} dmacHw_TRANSFER_TYPE_e; + +typedef enum { + dmacHw_TRANSFER_MODE_PERREQUEST, /* Block transfer per DMA request */ + dmacHw_TRANSFER_MODE_CONTINUOUS, /* Continuous transfer of streaming data */ + dmacHw_TRANSFER_MODE_PERIODIC /* Periodic transfer of streaming data */ +} dmacHw_TRANSFER_MODE_e; + +typedef enum { + dmacHw_SRC_ADDRESS_UPDATE_MODE_INC = dmacHw_REG_CTL_SINC_INC, /* Increment source address after every transaction */ + dmacHw_SRC_ADDRESS_UPDATE_MODE_DEC = dmacHw_REG_CTL_SINC_DEC, /* Decrement source address after every transaction */ + dmacHw_DST_ADDRESS_UPDATE_MODE_INC = dmacHw_REG_CTL_DINC_INC, /* Increment destination address after every transaction */ + dmacHw_DST_ADDRESS_UPDATE_MODE_DEC = dmacHw_REG_CTL_DINC_DEC, /* Decrement destination address after every transaction */ + dmacHw_SRC_ADDRESS_UPDATE_MODE_NC = dmacHw_REG_CTL_SINC_NC, /* No change in source address after every transaction */ + dmacHw_DST_ADDRESS_UPDATE_MODE_NC = dmacHw_REG_CTL_DINC_NC /* No change in destination address after every transaction */ +} dmacHw_ADDRESS_UPDATE_MODE_e; + +typedef enum { + dmacHw_FLOW_CONTROL_DMA, /* DMA working as flow controller (default) */ + dmacHw_FLOW_CONTROL_PERIPHERAL /* Peripheral working as flow controller */ +} dmacHw_FLOW_CONTROL_e; + +typedef enum { + dmacHw_TRANSFER_STATUS_BUSY, /* DMA Transfer ongoing */ + dmacHw_TRANSFER_STATUS_DONE, /* DMA Transfer completed */ + dmacHw_TRANSFER_STATUS_ERROR /* DMA Transfer error */ +} dmacHw_TRANSFER_STATUS_e; + +typedef enum { + dmacHw_INTERRUPT_DISABLE, /* Interrupt disable */ + dmacHw_INTERRUPT_ENABLE /* Interrupt enable */ +} dmacHw_INTERRUPT_e; + +typedef enum { + dmacHw_INTERRUPT_STATUS_NONE = 0x0, /* No DMA interrupt */ + dmacHw_INTERRUPT_STATUS_TRANS = 0x1, /* End of DMA transfer interrupt */ + dmacHw_INTERRUPT_STATUS_BLOCK = 0x2, /* End of block transfer interrupt */ + dmacHw_INTERRUPT_STATUS_ERROR = 0x4 /* Error interrupt */ +} dmacHw_INTERRUPT_STATUS_e; + +typedef enum { + dmacHw_CONTROLLER_ATTRIB_CHANNEL_NUM, /* Number of DMA channel */ + dmacHw_CONTROLLER_ATTRIB_CHANNEL_MAX_BLOCK_SIZE, /* Maximum channel burst size */ + dmacHw_CONTROLLER_ATTRIB_MASTER_INTF_NUM, /* Number of DMA master interface */ + dmacHw_CONTROLLER_ATTRIB_CHANNEL_BUS_WIDTH, /* Channel Data bus width */ + dmacHw_CONTROLLER_ATTRIB_CHANNEL_FIFO_SIZE /* Channel FIFO size */ +} dmacHw_CONTROLLER_ATTRIB_e; + +typedef unsigned long dmacHw_HANDLE_t; /* DMA channel handle */ +typedef uint32_t dmacHw_ID_t; /* DMA channel Id. Must be created using + "dmacHw_MAKE_CHANNEL_ID" macro + */ +/* DMA channel configuration parameters */ +typedef struct { + uint32_t srcPeripheralPort; /* Source peripheral port */ + uint32_t dstPeripheralPort; /* Destination peripheral port */ + uint32_t srcStatusRegisterAddress; /* Source status register address */ + uint32_t dstStatusRegisterAddress; /* Destination status register address of type */ + + uint32_t srcGatherWidth; /* Number of bytes gathered before successive gather opearation */ + uint32_t srcGatherJump; /* Number of bytes jumpped before successive gather opearation */ + uint32_t dstScatterWidth; /* Number of bytes sacattered before successive scatter opearation */ + uint32_t dstScatterJump; /* Number of bytes jumpped before successive scatter opearation */ + uint32_t maxDataPerBlock; /* Maximum number of bytes to be transferred per block/descrptor. + 0 = Maximum possible. + */ + + dmacHw_ADDRESS_UPDATE_MODE_e srcUpdate; /* Source address update mode */ + dmacHw_ADDRESS_UPDATE_MODE_e dstUpdate; /* Destination address update mode */ + dmacHw_TRANSFER_TYPE_e transferType; /* DMA transfer type */ + dmacHw_TRANSFER_MODE_e transferMode; /* DMA transfer mode */ + dmacHw_MASTER_INTERFACE_e srcMasterInterface; /* DMA source interface */ + dmacHw_MASTER_INTERFACE_e dstMasterInterface; /* DMA destination interface */ + dmacHw_TRANSACTION_WIDTH_e srcMaxTransactionWidth; /* Source transaction width */ + dmacHw_TRANSACTION_WIDTH_e dstMaxTransactionWidth; /* Destination transaction width */ + dmacHw_BURST_WIDTH_e srcMaxBurstWidth; /* Source burst width */ + dmacHw_BURST_WIDTH_e dstMaxBurstWidth; /* Destination burst width */ + dmacHw_INTERRUPT_e blockTransferInterrupt; /* Block trsnafer interrupt */ + dmacHw_INTERRUPT_e completeTransferInterrupt; /* Complete DMA trsnafer interrupt */ + dmacHw_INTERRUPT_e errorInterrupt; /* Error interrupt */ + dmacHw_CHANNEL_PRIORITY_e channelPriority; /* Channel priority */ + dmacHw_FLOW_CONTROL_e flowControler; /* Data flow controller */ +} dmacHw_CONFIG_t; + +/****************************************************************************/ +/** +* @brief Initializes DMA +* +* This function initializes DMA CSP driver +* +* @note +* Must be called before using any DMA channel +*/ +/****************************************************************************/ +void dmacHw_initDma(void); + +/****************************************************************************/ +/** +* @brief Exit function for DMA +* +* This function isolates DMA from the system +* +*/ +/****************************************************************************/ +void dmacHw_exitDma(void); + +/****************************************************************************/ +/** +* @brief Gets a handle to a DMA channel +* +* This function returns a handle, representing a control block of a particular DMA channel +* +* @return -1 - On Failure +* handle - On Success, representing a channel control block +* +* @note +* None Channel ID must be created using "dmacHw_MAKE_CHANNEL_ID" macro +*/ +/****************************************************************************/ +dmacHw_HANDLE_t dmacHw_getChannelHandle(dmacHw_ID_t channelId /* [ IN ] DMA Channel Id */ + ); + +/****************************************************************************/ +/** +* @brief Initializes a DMA channel for use +* +* This function initializes and resets a DMA channel for use +* +* @return -1 - On Failure +* 0 - On Success +* +* @note +* None +*/ +/****************************************************************************/ +int dmacHw_initChannel(dmacHw_HANDLE_t handle /* [ IN ] DMA Channel handle */ + ); + +/****************************************************************************/ +/** +* @brief Estimates number of descriptor needed to perform certain DMA transfer +* +* +* @return On failure : -1 +* On success : Number of descriptor count +* +* +*/ +/****************************************************************************/ +int dmacHw_calculateDescriptorCount(dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pSrcAddr, /* [ IN ] Source (Peripheral/Memory) address */ + void *pDstAddr, /* [ IN ] Destination (Peripheral/Memory) address */ + size_t dataLen /* [ IN ] Data length in bytes */ + ); + +/****************************************************************************/ +/** +* @brief Initializes descriptor ring +* +* This function will initializes the descriptor ring of a DMA channel +* +* +* @return -1 - On failure +* 0 - On success +* @note +* - "len" parameter should be obtained from "dmacHw_descriptorLen" +* - Descriptor buffer MUST be 32 bit aligned and uncached as it +* is accessed by ARM and DMA +*/ +/****************************************************************************/ +int dmacHw_initDescriptor(void *pDescriptorVirt, /* [ IN ] Virtual address of uncahced buffer allocated to form descriptor ring */ + uint32_t descriptorPhyAddr, /* [ IN ] Physical address of pDescriptorVirt (descriptor buffer) */ + uint32_t len, /* [ IN ] Size of the pBuf */ + uint32_t num /* [ IN ] Number of descriptor in the ring */ + ); + +/****************************************************************************/ +/** +* @brief Finds amount of memory required to form a descriptor ring +* +* +* @return Number of bytes required to form a descriptor ring +* +* +* @note +* None +*/ +/****************************************************************************/ +uint32_t dmacHw_descriptorLen(uint32_t descCnt /* [ IN ] Number of descriptor in the ring */ + ); + +/****************************************************************************/ +/** +* @brief Configure DMA channel +* +* @return 0 : On success +* -1 : On failure +*/ +/****************************************************************************/ +int dmacHw_configChannel(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + dmacHw_CONFIG_t *pConfig /* [ IN ] Configuration settings */ + ); + +/****************************************************************************/ +/** +* @brief Set descriptors for known data length +* +* When DMA has to work as a flow controller, this function prepares the +* descriptor chain to transfer data +* +* from: +* - Memory to memory +* - Peripheral to memory +* - Memory to Peripheral +* - Peripheral to Peripheral +* +* @return -1 - On failure +* 0 - On success +* +*/ +/****************************************************************************/ +int dmacHw_setDataDescriptor(dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pDescriptor, /* [ IN ] Descriptor buffer */ + void *pSrcAddr, /* [ IN ] Source (Peripheral/Memory) address */ + void *pDstAddr, /* [ IN ] Destination (Peripheral/Memory) address */ + size_t dataLen /* [ IN ] Length in bytes */ + ); + +/****************************************************************************/ +/** +* @brief Indicates whether DMA transfer is in progress or completed +* +* @return DMA transfer status +* dmacHw_TRANSFER_STATUS_BUSY: DMA Transfer ongoing +* dmacHw_TRANSFER_STATUS_DONE: DMA Transfer completed +* dmacHw_TRANSFER_STATUS_ERROR: DMA Transfer error +* +*/ +/****************************************************************************/ +dmacHw_TRANSFER_STATUS_e dmacHw_transferCompleted(dmacHw_HANDLE_t handle /* [ IN ] DMA Channel handle */ + ); + +/****************************************************************************/ +/** +* @brief Set descriptor carrying control information +* +* This function will be used to send specific control information to the device +* using the DMA channel +* +* +* @return -1 - On failure +* 0 - On success +* +* @note +* None +*/ +/****************************************************************************/ +int dmacHw_setControlDescriptor(dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pDescriptor, /* [ IN ] Descriptor buffer */ + uint32_t ctlAddress, /* [ IN ] Address of the device control register */ + uint32_t control /* [ IN ] Device control information */ + ); + +/****************************************************************************/ +/** +* @brief Read data DMA transferred to memory +* +* This function will read data that has been DMAed to memory while transfering from: +* - Memory to memory +* - Peripheral to memory +* +* @return 0 - No more data is available to read +* 1 - More data might be available to read +* +*/ +/****************************************************************************/ +int dmacHw_readTransferredData(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pDescriptor, /* [ IN ] Descriptor buffer */ + void **ppBbuf, /* [ OUT ] Data received */ + size_t *pLlen /* [ OUT ] Length of the data received */ + ); + +/****************************************************************************/ +/** +* @brief Prepares descriptor ring, when source peripheral working as a flow controller +* +* This function will form the descriptor ring by allocating buffers, when source peripheral +* has to work as a flow controller to transfer data from: +* - Peripheral to memory. +* +* @return -1 - On failure +* 0 - On success +* +* +* @note +* None +*/ +/****************************************************************************/ +int dmacHw_setVariableDataDescriptor(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pDescriptor, /* [ IN ] Descriptor buffer */ + uint32_t srcAddr, /* [ IN ] Source peripheral address */ + void *(*fpAlloc) (int len), /* [ IN ] Function pointer that provides destination memory */ + int len, /* [ IN ] Number of bytes "fpAlloc" will allocate for destination */ + int num /* [ IN ] Number of descriptor to set */ + ); + +/****************************************************************************/ +/** +* @brief Program channel register to initiate transfer +* +* @return void +* +* +* @note +* - Descriptor buffer MUST ALWAYS be flushed before calling this function +* - This function should also be called from ISR to program the channel with +* pending descriptors +*/ +/****************************************************************************/ +void dmacHw_initiateTransfer(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pDescriptor /* [ IN ] Descriptor buffer */ + ); + +/****************************************************************************/ +/** +* @brief Resets descriptor control information +* +* @return void +*/ +/****************************************************************************/ +void dmacHw_resetDescriptorControl(void *pDescriptor /* [ IN ] Descriptor buffer */ + ); + +/****************************************************************************/ +/** +* @brief Program channel register to stop transfer +* +* Ensures the channel is not doing any transfer after calling this function +* +* @return void +* +*/ +/****************************************************************************/ +void dmacHw_stopTransfer(dmacHw_HANDLE_t handle /* [ IN ] DMA Channel handle */ + ); + +/****************************************************************************/ +/** +* @brief Check the existance of pending descriptor +* +* This function confirmes if there is any pending descriptor in the chain +* to program the channel +* +* @return 1 : Channel need to be programmed with pending descriptor +* 0 : No more pending descriptor to programe the channel +* +* @note +* - This function should be called from ISR in case there are pending +* descriptor to program the channel. +* +* Example: +* +* dmac_isr () +* { +* ... +* if (dmacHw_descriptorPending (handle)) +* { +* dmacHw_initiateTransfer (handle); +* } +* } +* +*/ +/****************************************************************************/ +uint32_t dmacHw_descriptorPending(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + void *pDescriptor /* [ IN ] Descriptor buffer */ + ); + +/****************************************************************************/ +/** +* @brief Deallocates source or destination memory, allocated +* +* This function can be called to deallocate data memory that was DMAed successfully +* +* @return -1 - On failure +* 0 - On success +* +* @note +* This function will be called ONLY, when source OR destination address is pointing +* to dynamic memory +*/ +/****************************************************************************/ +int dmacHw_freeMem(dmacHw_CONFIG_t *pConfig, /* [ IN ] Configuration settings */ + void *pDescriptor, /* [ IN ] Descriptor buffer */ + void (*fpFree) (void *) /* [ IN ] Function pointer to free data memory */ + ); + +/****************************************************************************/ +/** +* @brief Clears the interrupt +* +* This function clears the DMA channel specific interrupt +* +* @return N/A +* +* @note +* Must be called under the context of ISR +*/ +/****************************************************************************/ +void dmacHw_clearInterrupt(dmacHw_HANDLE_t handle /* [ IN ] DMA Channel handle */ + ); + +/****************************************************************************/ +/** +* @brief Returns the cause of channel specific DMA interrupt +* +* This function returns the cause of interrupt +* +* @return Interrupt status, each bit representing a specific type of interrupt +* of type dmacHw_INTERRUPT_STATUS_e +* @note +* This function should be called under the context of ISR +*/ +/****************************************************************************/ +dmacHw_INTERRUPT_STATUS_e dmacHw_getInterruptStatus(dmacHw_HANDLE_t handle /* [ IN ] DMA Channel handle */ + ); + +/****************************************************************************/ +/** +* @brief Indentifies a DMA channel causing interrupt +* +* This functions returns a channel causing interrupt of type dmacHw_INTERRUPT_STATUS_e +* +* @return NULL : No channel causing DMA interrupt +* ! NULL : Handle to a channel causing DMA interrupt +* @note +* dmacHw_clearInterrupt() must be called with a valid handle after calling this function +*/ +/****************************************************************************/ +dmacHw_HANDLE_t dmacHw_getInterruptSource(void); + +/****************************************************************************/ +/** +* @brief Sets channel specific user data +* +* This function associates user data to a specif DMA channel +* +*/ +/****************************************************************************/ +void dmacHw_setChannelUserData(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + void *userData /* [ IN ] User data */ + ); + +/****************************************************************************/ +/** +* @brief Gets channel specific user data +* +* This function returns user data specific to a DMA channel +* +* @return user data +*/ +/****************************************************************************/ +void *dmacHw_getChannelUserData(dmacHw_HANDLE_t handle /* [ IN ] DMA Channel handle */ + ); + +/****************************************************************************/ +/** +* @brief Displays channel specific registers and other control parameters +* +* +* @return void +* +* @note +* None +*/ +/****************************************************************************/ +void dmacHw_printDebugInfo(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + void *pDescriptor, /* [ IN ] Descriptor buffer */ + int (*fpPrint) (const char *, ...) /* [ IN ] Print callback function */ + ); + +/****************************************************************************/ +/** +* @brief Provides DMA controller attributes +* +* +* @return DMA controller attributes +* +* @note +* None +*/ +/****************************************************************************/ +uint32_t dmacHw_getDmaControllerAttribute(dmacHw_HANDLE_t handle, /* [ IN ] DMA Channel handle */ + dmacHw_CONTROLLER_ATTRIB_e attr /* [ IN ] DMA Controler attribute of type dmacHw_CONTROLLER_ATTRIB_e */ + ); + +#endif /* _DMACHW_H */ diff --git a/arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h b/arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h new file mode 100644 index 00000000000..375066ad018 --- /dev/null +++ b/arch/arm/mach-bcmring/include/mach/csp/dmacHw_priv.h @@ -0,0 +1,145 @@ +/***************************************************************************** +* 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 <csp/stdint.h> + +/* Data type for DMA Link List Item */ +typedef struct { + uint32_t sar; /* Source Adress 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 sucess : Next avail able 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 */ diff --git a/arch/arm/mach-bcmring/include/mach/csp/dmacHw_reg.h b/arch/arm/mach-bcmring/include/mach/csp/dmacHw_reg.h new file mode 100644 index 00000000000..891cea87e33 --- /dev/null +++ b/arch/arm/mach-bcmring/include/mach/csp/dmacHw_reg.h @@ -0,0 +1,406 @@ +/***************************************************************************** +* 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_reg.h +* +* @brief Definitions for low level DMA registers +* +*/ +/****************************************************************************/ + +#ifndef _DMACHW_REG_H +#define _DMACHW_REG_H + +#include <csp/stdint.h> +#include <mach/csp/mm_io.h> + +/* Data type for 64 bit little endian register */ +typedef struct { + volatile uint32_t lo; /* Lower 32 bit in little endian mode */ + volatile uint32_t hi; /* Upper 32 bit in little endian mode */ +} dmacHw_REG64_t; + +/* Data type representing DMA channel registers */ +typedef struct { + dmacHw_REG64_t ChannelSar; /* Source Adress Register. 64 bits (upper 32 bits are reserved) + Address must be aligned to CTLx.SRC_TR_WIDTH. + */ + dmacHw_REG64_t ChannelDar; /* Destination Address Register.64 bits (upper 32 bits are reserved) + Address must be aligned to CTLx.DST_TR_WIDTH. + */ + dmacHw_REG64_t ChannelLlp; /* Link List Pointer.64 bits (upper 32 bits are reserved) + LLP contains the pointer to the next LLI for block chaining using linked lists. + If LLPis set to 0x0, then transfers using linked lists are not enabled. + Address MUST be aligned to a 32-bit boundary. + */ + dmacHw_REG64_t ChannelCtl; /* Control Register. 64 bits */ + dmacHw_REG64_t ChannelSstat; /* Source Status Register */ + dmacHw_REG64_t ChannelDstat; /* Destination Status Register */ + dmacHw_REG64_t ChannelSstatAddr; /* Source Status Address Register */ + dmacHw_REG64_t ChannelDstatAddr; /* Destination Status Address Register */ + dmacHw_REG64_t ChannelConfig; /* Channel Configuration Register */ + dmacHw_REG64_t SrcGather; /* Source gather register */ + dmacHw_REG64_t DstScatter; /* Destination scatter register */ +} dmacHw_CH_REG_t; + +/* Data type for RAW interrupt status registers */ +typedef struct { + dmacHw_REG64_t RawTfr; /* Raw Status for IntTfr Interrupt */ + dmacHw_REG64_t RawBlock; /* Raw Status for IntBlock Interrupt */ + dmacHw_REG64_t RawSrcTran; /* Raw Status for IntSrcTran Interrupt */ + dmacHw_REG64_t RawDstTran; /* Raw Status for IntDstTran Interrupt */ + dmacHw_REG64_t RawErr; /* Raw Status for IntErr Interrupt */ +} dmacHw_INT_RAW_t; + +/* Data type for interrupt status registers */ +typedef struct { + dmacHw_REG64_t StatusTfr; /* Status for IntTfr Interrupt */ + dmacHw_REG64_t StatusBlock; /* Status for IntBlock Interrupt */ + dmacHw_REG64_t StatusSrcTran; /* Status for IntSrcTran Interrupt */ + dmacHw_REG64_t StatusDstTran; /* Status for IntDstTran Interrupt */ + dmacHw_REG64_t StatusErr; /* Status for IntErr Interrupt */ +} dmacHw_INT_STATUS_t; + +/* Data type for interrupt mask registers*/ +typedef struct { + dmacHw_REG64_t MaskTfr; /* Mask for IntTfr Interrupt */ + dmacHw_REG64_t MaskBlock; /* Mask for IntBlock Interrupt */ + dmacHw_REG64_t MaskSrcTran; /* Mask for IntSrcTran Interrupt */ + dmacHw_REG64_t MaskDstTran; /* Mask for IntDstTran Interrupt */ + dmacHw_REG64_t MaskErr; /* Mask for IntErr Interrupt */ +} dmacHw_INT_MASK_t; + +/* Data type for interrupt clear registers */ +typedef struct { + dmacHw_REG64_t ClearTfr; /* Clear for IntTfr Interrupt */ + dmacHw_REG64_t ClearBlock; /* Clear for IntBlock Interrupt */ + dmacHw_REG64_t ClearSrcTran; /* Clear for IntSrcTran Interrupt */ + dmacHw_REG64_t ClearDstTran; /* Clear for IntDstTran Interrupt */ + dmacHw_REG64_t ClearErr; /* Clear for IntErr Interrupt */ + dmacHw_REG64_t StatusInt; /* Status for each interrupt type */ +} dmacHw_INT_CLEAR_t; + +/* Data type for software handshaking registers */ +typedef struct { + dmacHw_REG64_t ReqSrcReg; /* Source Software Transaction Request Register */ + dmacHw_REG64_t ReqDstReg; /* Destination Software Transaction Request Register */ + dmacHw_REG64_t SglReqSrcReg; /* Single Source Transaction Request Register */ + dmacHw_REG64_t SglReqDstReg; /* Single Destination Transaction Request Register */ + dmacHw_REG64_t LstSrcReg; /* Last Source Transaction Request Register */ + dmacHw_REG64_t LstDstReg; /* Last Destination Transaction Request Register */ +} dmacHw_SW_HANDSHAKE_t; + +/* Data type for misc. registers */ +typedef struct { + dmacHw_REG64_t DmaCfgReg; /* DMA Configuration Register */ + dmacHw_REG64_t ChEnReg; /* DMA Channel Enable Register */ + dmacHw_REG64_t DmaIdReg; /* DMA ID Register */ + dmacHw_REG64_t DmaTestReg; /* DMA Test Register */ + dmacHw_REG64_t Reserved0; /* Reserved */ + dmacHw_REG64_t Reserved1; /* Reserved */ + dmacHw_REG64_t CompParm6; /* Component Parameter 6 */ + dmacHw_REG64_t CompParm5; /* Component Parameter 5 */ + dmacHw_REG64_t CompParm4; /* Component Parameter 4 */ + dmacHw_REG64_t CompParm3; /* Component Parameter 3 */ + dmacHw_REG64_t CompParm2; /* Component Parameter 2 */ + dmacHw_REG64_t CompParm1; /* Component Parameter 1 */ + dmacHw_REG64_t CompId; /* Compoent ID */ +} dmacHw_MISC_t; + +/* Base registers */ +#define dmacHw_0_MODULE_BASE_ADDR (char *) MM_IO_BASE_DMA0 /* DMAC 0 module's base address */ +#define dmacHw_1_MODULE_BASE_ADDR (char *) MM_IO_BASE_DMA1 /* DMAC 1 module's base address */ + +extern uint32_t dmaChannelCount_0; +extern uint32_t dmaChannelCount_1; + +/* Define channel specific registers */ +#define dmacHw_CHAN_BASE(module, chan) ((dmacHw_CH_REG_t *) ((char *)((module) ? dmacHw_1_MODULE_BASE_ADDR : dmacHw_0_MODULE_BASE_ADDR) + ((chan) * sizeof(dmacHw_CH_REG_t)))) + +/* Raw interrupt status registers */ +#define dmacHw_REG_INT_RAW_BASE(module) ((char *)dmacHw_CHAN_BASE((module), ((module) ? dmaChannelCount_1 : dmaChannelCount_0))) +#define dmacHw_REG_INT_RAW_TRAN(module) (((dmacHw_INT_RAW_t *) dmacHw_REG_INT_RAW_BASE((module)))->RawTfr.lo) +#define dmacHw_REG_INT_RAW_BLOCK(module) (((dmacHw_INT_RAW_t *) dmacHw_REG_INT_RAW_BASE((module)))->RawBlock.lo) +#define dmacHw_REG_INT_RAW_STRAN(module) (((dmacHw_INT_RAW_t *) dmacHw_REG_INT_RAW_BASE((module)))->RawSrcTran.lo) +#define dmacHw_REG_INT_RAW_DTRAN(module) (((dmacHw_INT_RAW_t *) dmacHw_REG_INT_RAW_BASE((module)))->RawDstTran.lo) +#define dmacHw_REG_INT_RAW_ERROR(module) (((dmacHw_INT_RAW_t *) dmacHw_REG_INT_RAW_BASE((module)))->RawErr.lo) + +/* Interrupt status registers */ +#define dmacHw_REG_INT_STAT_BASE(module) ((char *)(dmacHw_REG_INT_RAW_BASE((module)) + sizeof(dmacHw_INT_RAW_t))) +#define dmacHw_REG_INT_STAT_TRAN(module) (((dmacHw_INT_STATUS_t *) dmacHw_REG_INT_STAT_BASE((module)))->StatusTfr.lo) +#define dmacHw_REG_INT_STAT_BLOCK(module) (((dmacHw_INT_STATUS_t *) dmacHw_REG_INT_STAT_BASE((module)))->StatusBlock.lo) +#define dmacHw_REG_INT_STAT_STRAN(module) (((dmacHw_INT_STATUS_t *) dmacHw_REG_INT_STAT_BASE((module)))->StatusSrcTran.lo) +#define dmacHw_REG_INT_STAT_DTRAN(module) (((dmacHw_INT_STATUS_t *) dmacHw_REG_INT_STAT_BASE((module)))->StatusDstTran.lo) +#define dmacHw_REG_INT_STAT_ERROR(module) (((dmacHw_INT_STATUS_t *) dmacHw_REG_INT_STAT_BASE((module)))->StatusErr.lo) + +/* Interrupt status registers */ +#define dmacHw_REG_INT_MASK_BASE(module) ((char *)(dmacHw_REG_INT_STAT_BASE((module)) + sizeof(dmacHw_INT_STATUS_t))) +#define dmacHw_REG_INT_MASK_TRAN(module) (((dmacHw_INT_MASK_t *) dmacHw_REG_INT_MASK_BASE((module)))->MaskTfr.lo) +#define dmacHw_REG_INT_MASK_BLOCK(module) (((dmacHw_INT_MASK_t *) dmacHw_REG_INT_MASK_BASE((module)))->MaskBlock.lo) +#define dmacHw_REG_INT_MASK_STRAN(module) (((dmacHw_INT_MASK_t *) dmacHw_REG_INT_MASK_BASE((module)))->MaskSrcTran.lo) +#define dmacHw_REG_INT_MASK_DTRAN(module) (((dmacHw_INT_MASK_t *) dmacHw_REG_INT_MASK_BASE((module)))->MaskDstTran.lo) +#define dmacHw_REG_INT_MASK_ERROR(module) (((dmacHw_INT_MASK_t *) dmacHw_REG_INT_MASK_BASE((module)))->MaskErr.lo) + +/* Interrupt clear registers */ +#define dmacHw_REG_INT_CLEAR_BASE(module) ((char *)(dmacHw_REG_INT_MASK_BASE((module)) + sizeof(dmacHw_INT_MASK_t))) +#define dmacHw_REG_INT_CLEAR_TRAN(module) (((dmacHw_INT_CLEAR_t *) dmacHw_REG_INT_CLEAR_BASE((module)))->ClearTfr.lo) +#define dmacHw_REG_INT_CLEAR_BLOCK(module) (((dmacHw_INT_CLEAR_t *) dmacHw_REG_INT_CLEAR_BASE((module)))->ClearBlock.lo) +#define dmacHw_REG_INT_CLEAR_STRAN(module) (((dmacHw_INT_CLEAR_t *) dmacHw_REG_INT_CLEAR_BASE((module)))->ClearSrcTran.lo) +#define dmacHw_REG_INT_CLEAR_DTRAN(module) (((dmacHw_INT_CLEAR_t *) dmacHw_REG_INT_CLEAR_BASE((module)))->ClearDstTran.lo) +#define dmacHw_REG_INT_CLEAR_ERROR(module) (((dmacHw_INT_CLEAR_t *) dmacHw_REG_INT_CLEAR_BASE((module)))->ClearErr.lo) +#define dmacHw_REG_INT_STATUS(module) (((dmacHw_INT_CLEAR_t *) dmacHw_REG_INT_CLEAR_BASE((module)))->StatusInt.lo) + +/* Software handshaking registers */ +#define dmacHw_REG_SW_HS_BASE(module) ((char *)(dmacHw_REG_INT_CLEAR_BASE((module)) + sizeof(dmacHw_INT_CLEAR_t))) +#define dmacHw_REG_SW_HS_SRC_REQ(module) (((dmacHw_SW_HANDSHAKE_t *) dmacHw_REG_SW_HS_BASE((module)))->ReqSrcReg.lo) +#define dmacHw_REG_SW_HS_DST_REQ(module) (((dmacHw_SW_HANDSHAKE_t *) dmacHw_REG_SW_HS_BASE((module)))->ReqDstReg.lo) +#define dmacHw_REG_SW_HS_SRC_SGL_REQ(module) (((dmacHw_SW_HANDSHAKE_t *) dmacHw_REG_SW_HS_BASE((module)))->SglReqSrcReg.lo) +#define dmacHw_REG_SW_HS_DST_SGL_REQ(module) (((dmacHw_SW_HANDSHAKE_t *) dmacHw_REG_SW_HS_BASE((module)))->SglReqDstReg.lo) +#define dmacHw_REG_SW_HS_SRC_LST_REQ(module) (((dmacHw_SW_HANDSHAKE_t *) dmacHw_REG_SW_HS_BASE((module)))->LstSrcReg.lo) +#define dmacHw_REG_SW_HS_DST_LST_REQ(module) (((dmacHw_SW_HANDSHAKE_t *) dmacHw_REG_SW_HS_BASE((module)))->LstDstReg.lo) + +/* Miscellaneous registers */ +#define dmacHw_REG_MISC_BASE(module) ((char *)(dmacHw_REG_SW_HS_BASE((module)) + sizeof(dmacHw_SW_HANDSHAKE_t))) +#define dmacHw_REG_MISC_CFG(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->DmaCfgReg.lo) +#define dmacHw_REG_MISC_CH_ENABLE(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->ChEnReg.lo) +#define dmacHw_REG_MISC_ID(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->DmaIdReg.lo) +#define dmacHw_REG_MISC_TEST(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->DmaTestReg.lo) +#define dmacHw_REG_MISC_COMP_PARAM1_LO(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm1.lo) +#define dmacHw_REG_MISC_COMP_PARAM1_HI(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm1.hi) +#define dmacHw_REG_MISC_COMP_PARAM2_LO(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm2.lo) +#define dmacHw_REG_MISC_COMP_PARAM2_HI(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm2.hi) +#define dmacHw_REG_MISC_COMP_PARAM3_LO(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm3.lo) +#define dmacHw_REG_MISC_COMP_PARAM3_HI(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm3.hi) +#define dmacHw_REG_MISC_COMP_PARAM4_LO(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm4.lo) +#define dmacHw_REG_MISC_COMP_PARAM4_HI(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm4.hi) +#define dmacHw_REG_MISC_COMP_PARAM5_LO(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm5.lo) +#define dmacHw_REG_MISC_COMP_PARAM5_HI(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm5.hi) +#define dmacHw_REG_MISC_COMP_PARAM6_LO(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm6.lo) +#define dmacHw_REG_MISC_COMP_PARAM6_HI(module) (((dmacHw_MISC_t *) dmacHw_REG_MISC_BASE((module)))->CompParm6.hi) + +/* Channel control registers */ +#define dmacHw_REG_SAR(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelSar.lo) +#define dmacHw_REG_DAR(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelDar.lo) +#define dmacHw_REG_LLP(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelLlp.lo) + +#define dmacHw_REG_CTL_LO(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelCtl.lo) +#define dmacHw_REG_CTL_HI(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelCtl.hi) + +#define dmacHw_REG_SSTAT(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelSstat.lo) +#define dmacHw_REG_DSTAT(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelDstat.lo) +#define dmacHw_REG_SSTATAR(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelSstatAddr.lo) +#define dmacHw_REG_DSTATAR(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelDstatAddr.lo) + +#define dmacHw_REG_CFG_LO(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelConfig.lo) +#define dmacHw_REG_CFG_HI(module, chan) (dmacHw_CHAN_BASE((module), (chan))->ChannelConfig.hi) + +#define dmacHw_REG_SGR_LO(module, chan) (dmacHw_CHAN_BASE((module), (chan))->SrcGather.lo) +#define dmacHw_REG_SGR_HI(module, chan) (dmacHw_CHAN_BASE((module), (chan))->SrcGather.hi) + +#define dmacHw_REG_DSR_LO(module, chan) (dmacHw_CHAN_BASE((module), (chan))->DstScatter.lo) +#define dmacHw_REG_DSR_HI(module, chan) (dmacHw_CHAN_BASE((module), (chan))->DstScatter.hi) + +#define INT_STATUS_MASK(channel) (0x00000001 << (channel)) +#define CHANNEL_BUSY(mod, channel) (dmacHw_REG_MISC_CH_ENABLE((mod)) & (0x00000001 << (channel))) + +/* Bit mask for REG_DMACx_CTL_LO */ + +#define dmacHw_REG_CTL_INT_EN 0x00000001 /* Channel interrupt enable */ + +#define dmacHw_REG_CTL_DST_TR_WIDTH_MASK 0x0000000E /* Destination transaction width mask */ +#define dmacHw_REG_CTL_DST_TR_WIDTH_SHIFT 1 +#define dmacHw_REG_CTL_DST_TR_WIDTH_8 0x00000000 /* Destination transaction width 8 bit */ +#define dmacHw_REG_CTL_DST_TR_WIDTH_16 0x00000002 /* Destination transaction width 16 bit */ +#define dmacHw_REG_CTL_DST_TR_WIDTH_32 0x00000004 /* Destination transaction width 32 bit */ +#define dmacHw_REG_CTL_DST_TR_WIDTH_64 0x00000006 /* Destination transaction width 64 bit */ + +#define dmacHw_REG_CTL_SRC_TR_WIDTH_MASK 0x00000070 /* Source transaction width mask */ +#define dmacHw_REG_CTL_SRC_TR_WIDTH_SHIFT 4 +#define dmacHw_REG_CTL_SRC_TR_WIDTH_8 0x00000000 /* Source transaction width 8 bit */ +#define dmacHw_REG_CTL_SRC_TR_WIDTH_16 0x00000010 /* Source transaction width 16 bit */ +#define dmacHw_REG_CTL_SRC_TR_WIDTH_32 0x00000020 /* Source transaction width 32 bit */ +#define dmacHw_REG_CTL_SRC_TR_WIDTH_64 0x00000030 /* Source transaction width 64 bit */ + +#define dmacHw_REG_CTL_DS_ENABLE 0x00040000 /* Destination scatter enable */ +#define dmacHw_REG_CTL_SG_ENABLE 0x00020000 /* Source gather enable */ + +#define dmacHw_REG_CTL_DINC_MASK 0x00000180 /* Destination address inc/dec mask */ +#define dmacHw_REG_CTL_DINC_INC 0x00000000 /* Destination address increment */ +#define dmacHw_REG_CTL_DINC_DEC 0x00000080 /* Destination address decrement */ +#define dmacHw_REG_CTL_DINC_NC 0x00000100 /* Destination address no change */ + +#define dmacHw_REG_CTL_SINC_MASK 0x00000600 /* Source address inc/dec mask */ +#define dmacHw_REG_CTL_SINC_INC 0x00000000 /* Source address increment */ +#define dmacHw_REG_CTL_SINC_DEC 0x00000200 /* Source address decrement */ +#define dmacHw_REG_CTL_SINC_NC 0x00000400 /* Source address no change */ + +#define dmacHw_REG_CTL_DST_MSIZE_MASK 0x00003800 /* Destination burst transaction length */ +#define dmacHw_REG_CTL_DST_MSIZE_0 0x00000000 /* No Destination burst */ +#define dmacHw_REG_CTL_DST_MSIZE_4 0x00000800 /* Destination burst transaction length 4 */ +#define dmacHw_REG_CTL_DST_MSIZE_8 0x00001000 /* Destination burst transaction length 8 */ +#define dmacHw_REG_CTL_DST_MSIZE_16 0x00001800 /* Destination burst transaction length 16 */ + +#define dmacHw_REG_CTL_SRC_MSIZE_MASK 0x0001C000 /* Source burst transaction length */ +#define dmacHw_REG_CTL_SRC_MSIZE_0 0x00000000 /* No Source burst */ +#define dmacHw_REG_CTL_SRC_MSIZE_4 0x00004000 /* Source burst transaction length 4 */ +#define dmacHw_REG_CTL_SRC_MSIZE_8 0x00008000 /* Source burst transaction length 8 */ +#define dmacHw_REG_CTL_SRC_MSIZE_16 0x0000C000 /* Source burst transaction length 16 */ + +#define dmacHw_REG_CTL_TTFC_MASK 0x00700000 /* Transfer type and flow controller */ +#define dmacHw_REG_CTL_TTFC_MM_DMAC 0x00000000 /* Memory to Memory with DMAC as flow controller */ +#define dmacHw_REG_CTL_TTFC_MP_DMAC 0x00100000 /* Memory to Peripheral with DMAC as flow controller */ +#define dmacHw_REG_CTL_TTFC_PM_DMAC 0x00200000 /* Peripheral to Memory with DMAC as flow controller */ +#define dmacHw_REG_CTL_TTFC_PP_DMAC 0x00300000 /* Peripheral to Peripheral with DMAC as flow controller */ +#define dmacHw_REG_CTL_TTFC_PM_PERI 0x00400000 /* Peripheral to Memory with Peripheral as flow controller */ +#define dmacHw_REG_CTL_TTFC_PP_SPERI 0x00500000 /* Peripheral to Peripheral with Source Peripheral as flow controller */ +#define dmacHw_REG_CTL_TTFC_MP_PERI 0x00600000 /* Memory to Peripheral with Peripheral as flow controller */ +#define dmacHw_REG_CTL_TTFC_PP_DPERI 0x00700000 /* Peripheral to Peripheral with Destination Peripheral as flow controller */ + +#define dmacHw_REG_CTL_DMS_MASK 0x01800000 /* Destination AHB master interface */ +#define dmacHw_REG_CTL_DMS_1 0x00000000 /* Destination AHB master interface 1 */ +#define dmacHw_REG_CTL_DMS_2 0x00800000 /* Destination AHB master interface 2 */ + +#define dmacHw_REG_CTL_SMS_MASK 0x06000000 /* Source AHB master interface */ +#define dmacHw_REG_CTL_SMS_1 0x00000000 /* Source AHB master interface 1 */ +#define dmacHw_REG_CTL_SMS_2 0x02000000 /* Source AHB master interface 2 */ + +#define dmacHw_REG_CTL_LLP_DST_EN 0x08000000 /* Block chaining enable for destination side */ +#define dmacHw_REG_CTL_LLP_SRC_EN 0x10000000 /* Block chaining enable for source side */ + +/* Bit mask for REG_DMACx_CTL_HI */ +#define dmacHw_REG_CTL_BLOCK_TS_MASK 0x00000FFF /* Block transfer size */ +#define dmacHw_REG_CTL_DONE 0x00001000 /* Block trasnfer done */ + +/* Bit mask for REG_DMACx_CFG_LO */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_SHIFT 5 /* Channel priority shift */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_MASK 0x000000E0 /* Channel priority mask */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_0 0x00000000 /* Channel priority 0 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_1 0x00000020 /* Channel priority 1 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_2 0x00000040 /* Channel priority 2 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_3 0x00000060 /* Channel priority 3 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_4 0x00000080 /* Channel priority 4 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_5 0x000000A0 /* Channel priority 5 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_6 0x000000C0 /* Channel priority 6 */ +#define dmacHw_REG_CFG_LO_CH_PRIORITY_7 0x000000E0 /* Channel priority 7 */ + +#define dmacHw_REG_CFG_LO_CH_SUSPEND 0x00000100 /* Channel suspend */ +#define dmacHw_REG_CFG_LO_CH_FIFO_EMPTY 0x00000200 /* Channel FIFO empty */ +#define dmacHw_REG_CFG_LO_DST_CH_SW_HS 0x00000400 /* Destination channel SW handshaking */ +#define dmacHw_REG_CFG_LO_SRC_CH_SW_HS 0x00000800 /* Source channel SW handshaking */ + +#define dmacHw_REG_CFG_LO_CH_LOCK_MASK 0x00003000 /* Channel locking mask */ +#define dmacHw_REG_CFG_LO_CH_LOCK_DMA 0x00000000 /* Channel lock over the entire DMA transfer operation */ +#define dmacHw_REG_CFG_LO_CH_LOCK_BLOCK 0x00001000 /* Channel lock over the block transfer operation */ +#define dmacHw_REG_CFG_LO_CH_LOCK_TRANS 0x00002000 /* Channel lock over the transaction */ +#define dmacHw_REG_CFG_LO_CH_LOCK_ENABLE 0x00010000 /* Channel lock enable */ + +#define dmacHw_REG_CFG_LO_BUS_LOCK_MASK 0x0000C000 /* Bus locking mask */ +#define dmacHw_REG_CFG_LO_BUS_LOCK_DMA 0x00000000 /* Bus lock over the entire DMA transfer operation */ +#define dmacHw_REG_CFG_LO_BUS_LOCK_BLOCK 0x00004000 /* Bus lock over the block transfer operation */ +#define dmacHw_REG_CFG_LO_BUS_LOCK_TRANS 0x00008000 /* Bus lock over the transaction */ +#define dmacHw_REG_CFG_LO_BUS_LOCK_ENABLE 0x00020000 /* Bus lock enable */ + +#define dmacHw_REG_CFG_LO_DST_HS_POLARITY_LOW 0x00040000 /* Destination channel handshaking signal polarity low */ +#define dmacHw_REG_CFG_LO_SRC_HS_POLARITY_LOW 0x00080000 /* Source channel handshaking signal polarity low */ + +#define dmacHw_REG_CFG_LO_MAX_AMBA_BURST_LEN_MASK 0x3FF00000 /* Maximum AMBA burst length */ + +#define dmacHw_REG_CFG_LO_AUTO_RELOAD_SRC 0x40000000 /* Source address auto reload */ +#define dmacHw_REG_CFG_LO_AUTO_RELOAD_DST 0x80000000 /* Destination address auto reload */ + +/* Bit mask for REG_DMACx_CFG_HI */ +#define dmacHw_REG_CFG_HI_FC_DST_READY 0x00000001 /* Source transaction request is serviced when destination is ready */ +#define dmacHw_REG_CFG_HI_FIFO_ENOUGH 0x00000002 /* Initiate burst transaction when enough data in available in FIFO */ + +#define dmacHw_REG_CFG_HI_AHB_HPROT_MASK 0x0000001C /* AHB protection mask */ +#define dmacHw_REG_CFG_HI_AHB_HPROT_1 0x00000004 /* AHB protection 1 */ +#define dmacHw_REG_CFG_HI_AHB_HPROT_2 0x00000008 /* AHB protection 2 */ +#define dmacHw_REG_CFG_HI_AHB_HPROT_3 0x00000010 /* AHB protection 3 */ + +#define dmacHw_REG_CFG_HI_UPDATE_DST_STAT 0x00000020 /* Destination status update enable */ +#define dmacHw_REG_CFG_HI_UPDATE_SRC_STAT 0x00000040 /* Source status update enable */ + +#define dmacHw_REG_CFG_HI_SRC_PERI_INTF_MASK 0x00000780 /* Source peripheral hardware interface mask */ +#define dmacHw_REG_CFG_HI_DST_PERI_INTF_MASK 0x00007800 /* Destination peripheral hardware interface mask */ + +/* DMA Configuration Parameters */ +#define dmacHw_REG_COMP_PARAM_NUM_CHANNELS 0x00000700 /* Number of channels */ +#define dmacHw_REG_COMP_PARAM_NUM_INTERFACE 0x00001800 /* Number of master interface */ +#define dmacHw_REG_COMP_PARAM_MAX_BLK_SIZE 0x0000000f /* Maximum brust size */ +#define dmacHw_REG_COMP_PARAM_DATA_WIDTH 0x00006000 /* Data transfer width */ + +/* Define GET/SET macros to program the registers */ +#define dmacHw_SET_SAR(module, channel, addr) (dmacHw_REG_SAR((module), (channel)) = (uint32_t) (addr)) +#define dmacHw_SET_DAR(module, channel, addr) (dmacHw_REG_DAR((module), (channel)) = (uint32_t) (addr)) +#define dmacHw_SET_LLP(module, channel, ptr) (dmacHw_REG_LLP((module), (channel)) = (uint32_t) (ptr)) + +#define dmacHw_GET_SSTAT(module, channel) (dmacHw_REG_SSTAT((module), (channel))) +#define dmacHw_GET_DSTAT(module, channel) (dmacHw_REG_DSTAT((module), (channel))) + +#define dmacHw_SET_SSTATAR(module, channel, addr) (dmacHw_REG_SSTATAR((module), (channel)) = (uint32_t) (addr)) +#define dmacHw_SET_DSTATAR(module, channel, addr) (dmacHw_REG_DSTATAR((module), (channel)) = (uint32_t) (addr)) + +#define dmacHw_SET_CONTROL_LO(module, channel, ctl) (dmacHw_REG_CTL_LO((module), (channel)) |= (ctl)) +#define dmacHw_RESET_CONTROL_LO(module, channel) (dmacHw_REG_CTL_LO((module), (channel)) = 0) +#define dmacHw_GET_CONTROL_LO(module, channel) (dmacHw_REG_CTL_LO((module), (channel))) + +#define dmacHw_SET_CONTROL_HI(module, channel, ctl) (dmacHw_REG_CTL_HI((module), (channel)) |= (ctl)) +#define dmacHw_RESET_CONTROL_HI(module, channel) (dmacHw_REG_CTL_HI((module), (channel)) = 0) +#define dmacHw_GET_CONTROL_HI(module, channel) (dmacHw_REG_CTL_HI((module), (channel))) + +#define dmacHw_GET_BLOCK_SIZE(module, channel) (dmacHw_REG_CTL_HI((module), (channel)) & dmacHw_REG_CTL_BLOCK_TS_MASK) +#define dmacHw_DMA_COMPLETE(module, channel) (dmacHw_REG_CTL_HI((module), (channel)) & dmacHw_REG_CTL_DONE) + +#define dmacHw_SET_CONFIG_LO(module, channel, cfg) (dmacHw_REG_CFG_LO((module), (channel)) |= (cfg)) +#define dmacHw_RESET_CONFIG_LO(module, channel) (dmacHw_REG_CFG_LO((module), (channel)) = 0) +#define dmacHw_GET_CONFIG_LO(module, channel) (dmacHw_REG_CFG_LO((module), (channel))) +#define dmacHw_SET_AMBA_BUSRT_LEN(module, channel, len) (dmacHw_REG_CFG_LO((module), (channel)) = (dmacHw_REG_CFG_LO((module), (channel)) & ~(dmacHw_REG_CFG_LO_MAX_AMBA_BURST_LEN_MASK)) | (((len) << 20) & dmacHw_REG_CFG_LO_MAX_AMBA_BURST_LEN_MASK)) +#define dmacHw_SET_CHANNEL_PRIORITY(module, channel, prio) (dmacHw_REG_CFG_LO((module), (channel)) = (dmacHw_REG_CFG_LO((module), (channel)) & ~(dmacHw_REG_CFG_LO_CH_PRIORITY_MASK)) | (prio)) +#define dmacHw_SET_AHB_HPROT(module, channel, protect) (dmacHw_REG_CFG_HI(module, channel) = (dmacHw_REG_CFG_HI((module), (channel)) & ~(dmacHw_REG_CFG_HI_AHB_HPROT_MASK)) | (protect)) + +#define dmacHw_SET_CONFIG_HI(module, channel, cfg) (dmacHw_REG_CFG_HI((module), (channel)) |= (cfg)) +#define dmacHw_RESET_CONFIG_HI(module, channel) (dmacHw_REG_CFG_HI((module), (channel)) = 0) +#define dmacHw_GET_CONFIG_HI(module, channel) (dmacHw_REG_CFG_HI((module), (channel))) +#define dmacHw_SET_SRC_PERI_INTF(module, channel, intf) (dmacHw_REG_CFG_HI((module), (channel)) = (dmacHw_REG_CFG_HI((module), (channel)) & ~(dmacHw_REG_CFG_HI_SRC_PERI_INTF_MASK)) | (((intf) << 7) & dmacHw_REG_CFG_HI_SRC_PERI_INTF_MASK)) +#define dmacHw_SRC_PERI_INTF(intf) (((intf) << 7) & dmacHw_REG_CFG_HI_SRC_PERI_INTF_MASK) +#define dmacHw_SET_DST_PERI_INTF(module, channel, intf) (dmacHw_REG_CFG_HI((module), (channel)) = (dmacHw_REG_CFG_HI((module), (channel)) & ~(dmacHw_REG_CFG_HI_DST_PERI_INTF_MASK)) | (((intf) << 11) & dmacHw_REG_CFG_HI_DST_PERI_INTF_MASK)) +#define dmacHw_DST_PERI_INTF(intf) (((intf) << 11) & dmacHw_REG_CFG_HI_DST_PERI_INTF_MASK) + +#define dmacHw_DMA_START(module, channel) (dmacHw_REG_MISC_CH_ENABLE((module)) = (0x00000001 << ((channel) + 8)) | (0x00000001 << (channel))) +#define dmacHw_DMA_STOP(module, channel) (dmacHw_REG_MISC_CH_ENABLE((module)) = (0x00000001 << ((channel) + 8))) +#define dmacHw_DMA_ENABLE(module) (dmacHw_REG_MISC_CFG((module)) = 1) +#define dmacHw_DMA_DISABLE(module) (dmacHw_REG_MISC_CFG((module)) = 0) + +#define dmacHw_TRAN_INT_ENABLE(module, channel) (dmacHw_REG_INT_MASK_TRAN((module)) = (0x00000001 << ((channel) + 8)) | (0x00000001 << (channel))) +#define dmacHw_BLOCK_INT_ENABLE(module, channel) (dmacHw_REG_INT_MASK_BLOCK((module)) = (0x00000001 << ((channel) + 8)) | (0x00000001 << (channel))) +#define dmacHw_ERROR_INT_ENABLE(module, channel) (dmacHw_REG_INT_MASK_ERROR((module)) = (0x00000001 << ((channel) + 8)) | (0x00000001 << (channel))) + +#define dmacHw_TRAN_INT_DISABLE(module, channel) (dmacHw_REG_INT_MASK_TRAN((module)) = (0x00000001 << ((channel) + 8))) +#define dmacHw_BLOCK_INT_DISABLE(module, channel) (dmacHw_REG_INT_MASK_BLOCK((module)) = (0x00000001 << ((channel) + 8))) +#define dmacHw_ERROR_INT_DISABLE(module, channel) (dmacHw_REG_INT_MASK_ERROR((module)) = (0x00000001 << ((channel) + 8))) +#define dmacHw_STRAN_INT_DISABLE(module, channel) (dmacHw_REG_INT_MASK_STRAN((module)) = (0x00000001 << ((channel) + 8))) +#define dmacHw_DTRAN_INT_DISABLE(module, channel) (dmacHw_REG_INT_MASK_DTRAN((module)) = (0x00000001 << ((channel) + 8))) + +#define dmacHw_TRAN_INT_CLEAR(module, channel) (dmacHw_REG_INT_CLEAR_TRAN((module)) = (0x00000001 << (channel))) +#define dmacHw_BLOCK_INT_CLEAR(module, channel) (dmacHw_REG_INT_CLEAR_BLOCK((module)) = (0x00000001 << (channel))) +#define dmacHw_ERROR_INT_CLEAR(module, channel) (dmacHw_REG_INT_CLEAR_ERROR((module)) = (0x00000001 << (channel))) + +#define dmacHw_GET_NUM_CHANNEL(module) (((dmacHw_REG_MISC_COMP_PARAM1_HI((module)) & dmacHw_REG_COMP_PARAM_NUM_CHANNELS) >> 8) + 1) +#define dmacHw_GET_NUM_INTERFACE(module) (((dmacHw_REG_MISC_COMP_PARAM1_HI((module)) & dmacHw_REG_COMP_PARAM_NUM_INTERFACE) >> 11) + 1) +#define dmacHw_GET_MAX_BLOCK_SIZE(module, channel) ((dmacHw_REG_MISC_COMP_PARAM1_LO((module)) >> (4 * (channel))) & dmacHw_REG_COMP_PARAM_MAX_BLK_SIZE) +#define dmacHw_GET_CHANNEL_DATA_WIDTH(module, channel) ((dmacHw_REG_MISC_COMP_PARAM1_HI((module)) & dmacHw_REG_COMP_PARAM_DATA_WIDTH) >> 13) + +#endif /* _DMACHW_REG_H */ |