mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
576 lines
24 KiB
C
576 lines
24 KiB
C
|
/******************************************************************************
|
||
|
* Filename: hw_udma_h
|
||
|
* Revised: 2017-01-31 09:37:48 +0100 (Tue, 31 Jan 2017)
|
||
|
* Revision: 48345
|
||
|
*
|
||
|
* Copyright (c) 2015 - 2017, Texas Instruments Incorporated
|
||
|
* All rights reserved.
|
||
|
*
|
||
|
* Redistribution and use in source and binary forms, with or without
|
||
|
* modification, are permitted provided that the following conditions are met:
|
||
|
*
|
||
|
* 1) Redistributions of source code must retain the above copyright notice,
|
||
|
* this list of conditions and the following disclaimer.
|
||
|
*
|
||
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
||
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
* and/or other materials provided with the distribution.
|
||
|
*
|
||
|
* 3) Neither the name of the ORGANIZATION nor the names of its contributors may
|
||
|
* be used to endorse or promote products derived from this software without
|
||
|
* specific prior written permission.
|
||
|
*
|
||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
||
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||
|
*
|
||
|
******************************************************************************/
|
||
|
|
||
|
#ifndef __HW_UDMA_H__
|
||
|
#define __HW_UDMA_H__
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// This section defines the register offsets of
|
||
|
// UDMA component
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Status
|
||
|
#define UDMA_O_STATUS 0x00000000
|
||
|
|
||
|
// Configuration
|
||
|
#define UDMA_O_CFG 0x00000004
|
||
|
|
||
|
// Channel Control Data Base Pointer
|
||
|
#define UDMA_O_CTRL 0x00000008
|
||
|
|
||
|
// Channel Alternate Control Data Base Pointer
|
||
|
#define UDMA_O_ALTCTRL 0x0000000C
|
||
|
|
||
|
// Channel Wait On Request Status
|
||
|
#define UDMA_O_WAITONREQ 0x00000010
|
||
|
|
||
|
// Channel Software Request
|
||
|
#define UDMA_O_SOFTREQ 0x00000014
|
||
|
|
||
|
// Channel Set UseBurst
|
||
|
#define UDMA_O_SETBURST 0x00000018
|
||
|
|
||
|
// Channel Clear UseBurst
|
||
|
#define UDMA_O_CLEARBURST 0x0000001C
|
||
|
|
||
|
// Channel Set Request Mask
|
||
|
#define UDMA_O_SETREQMASK 0x00000020
|
||
|
|
||
|
// Clear Channel Request Mask
|
||
|
#define UDMA_O_CLEARREQMASK 0x00000024
|
||
|
|
||
|
// Set Channel Enable
|
||
|
#define UDMA_O_SETCHANNELEN 0x00000028
|
||
|
|
||
|
// Clear Channel Enable
|
||
|
#define UDMA_O_CLEARCHANNELEN 0x0000002C
|
||
|
|
||
|
// Channel Set Primary-Alternate
|
||
|
#define UDMA_O_SETCHNLPRIALT 0x00000030
|
||
|
|
||
|
// Channel Clear Primary-Alternate
|
||
|
#define UDMA_O_CLEARCHNLPRIALT 0x00000034
|
||
|
|
||
|
// Set Channel Priority
|
||
|
#define UDMA_O_SETCHNLPRIORITY 0x00000038
|
||
|
|
||
|
// Clear Channel Priority
|
||
|
#define UDMA_O_CLEARCHNLPRIORITY 0x0000003C
|
||
|
|
||
|
// Error Status and Clear
|
||
|
#define UDMA_O_ERROR 0x0000004C
|
||
|
|
||
|
// Channel Request Done
|
||
|
#define UDMA_O_REQDONE 0x00000504
|
||
|
|
||
|
// Channel Request Done Mask
|
||
|
#define UDMA_O_DONEMASK 0x00000520
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_STATUS
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:28] TEST
|
||
|
//
|
||
|
//
|
||
|
// 0x0: Controller does not include the integration test logic
|
||
|
// 0x1: Controller includes the integration test logic
|
||
|
// 0x2: Undefined
|
||
|
// ...
|
||
|
// 0xF: Undefined
|
||
|
#define UDMA_STATUS_TEST_W 4
|
||
|
#define UDMA_STATUS_TEST_M 0xF0000000
|
||
|
#define UDMA_STATUS_TEST_S 28
|
||
|
|
||
|
// Field: [20:16] TOTALCHANNELS
|
||
|
//
|
||
|
// Register value returns number of available uDMA channels minus one. For
|
||
|
// example a read out value of:
|
||
|
//
|
||
|
// 0x00: Show that the controller is configured to use 1 uDMA channel
|
||
|
// 0x01: Shows that the controller is configured to use 2 uDMA channels
|
||
|
// ...
|
||
|
// 0x1F: Shows that the controller is configured to use 32 uDMA channels
|
||
|
// (32-1=31=0x1F)
|
||
|
#define UDMA_STATUS_TOTALCHANNELS_W 5
|
||
|
#define UDMA_STATUS_TOTALCHANNELS_M 0x001F0000
|
||
|
#define UDMA_STATUS_TOTALCHANNELS_S 16
|
||
|
|
||
|
// Field: [7:4] STATE
|
||
|
//
|
||
|
// Current state of the control state machine. State can be one of the
|
||
|
// following:
|
||
|
//
|
||
|
// 0x0: Idle
|
||
|
// 0x1: Reading channel controller data
|
||
|
// 0x2: Reading source data end pointer
|
||
|
// 0x3: Reading destination data end pointer
|
||
|
// 0x4: Reading source data
|
||
|
// 0x5: Writing destination data
|
||
|
// 0x6: Waiting for uDMA request to clear
|
||
|
// 0x7: Writing channel controller data
|
||
|
// 0x8: Stalled
|
||
|
// 0x9: Done
|
||
|
// 0xA: Peripheral scatter-gather transition
|
||
|
// 0xB: Undefined
|
||
|
// ...
|
||
|
// 0xF: Undefined.
|
||
|
#define UDMA_STATUS_STATE_W 4
|
||
|
#define UDMA_STATUS_STATE_M 0x000000F0
|
||
|
#define UDMA_STATUS_STATE_S 4
|
||
|
|
||
|
// Field: [0] MASTERENABLE
|
||
|
//
|
||
|
// Shows the enable status of the controller as configured by CFG.MASTERENABLE:
|
||
|
//
|
||
|
// 0: Controller is disabled
|
||
|
// 1: Controller is enabled
|
||
|
#define UDMA_STATUS_MASTERENABLE 0x00000001
|
||
|
#define UDMA_STATUS_MASTERENABLE_BITN 0
|
||
|
#define UDMA_STATUS_MASTERENABLE_M 0x00000001
|
||
|
#define UDMA_STATUS_MASTERENABLE_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CFG
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [7:5] PRTOCTRL
|
||
|
//
|
||
|
// Sets the AHB-Lite bus protocol protection state by controlling the AHB
|
||
|
// signal HProt[3:1] as follows:
|
||
|
//
|
||
|
// Bit [7] Controls HProt[3] to indicate if a cacheable access is occurring.
|
||
|
// Bit [6] Controls HProt[2] to indicate if a bufferable access is occurring.
|
||
|
// Bit [5] Controls HProt[1] to indicate if a privileged access is occurring.
|
||
|
//
|
||
|
// When bit [n] = 1 then the corresponding HProt bit is high.
|
||
|
// When bit [n] = 0 then the corresponding HProt bit is low.
|
||
|
//
|
||
|
// This field controls HProt[3:1] signal for all transactions initiated by uDMA
|
||
|
// except two transactions below:
|
||
|
// - the read from the address indicated by source address pointer
|
||
|
// - the write to the address indicated by destination address pointer
|
||
|
// HProt[3:1] for these two exceptions can be controlled by dedicated fields in
|
||
|
// the channel configutation descriptor.
|
||
|
#define UDMA_CFG_PRTOCTRL_W 3
|
||
|
#define UDMA_CFG_PRTOCTRL_M 0x000000E0
|
||
|
#define UDMA_CFG_PRTOCTRL_S 5
|
||
|
|
||
|
// Field: [0] MASTERENABLE
|
||
|
//
|
||
|
// Enables the controller:
|
||
|
//
|
||
|
// 0: Disables the controller
|
||
|
// 1: Enables the controller
|
||
|
#define UDMA_CFG_MASTERENABLE 0x00000001
|
||
|
#define UDMA_CFG_MASTERENABLE_BITN 0
|
||
|
#define UDMA_CFG_MASTERENABLE_M 0x00000001
|
||
|
#define UDMA_CFG_MASTERENABLE_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CTRL
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:10] BASEPTR
|
||
|
//
|
||
|
// This register point to the base address for the primary data structures of
|
||
|
// each DMA channel. This is not stored in module, but in system memory, thus
|
||
|
// space must be allocated for this usage when DMA is in usage
|
||
|
#define UDMA_CTRL_BASEPTR_W 22
|
||
|
#define UDMA_CTRL_BASEPTR_M 0xFFFFFC00
|
||
|
#define UDMA_CTRL_BASEPTR_S 10
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_ALTCTRL
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] BASEPTR
|
||
|
//
|
||
|
// This register shows the base address for the alternate data structures and
|
||
|
// is calculated by module, thus read only
|
||
|
#define UDMA_ALTCTRL_BASEPTR_W 32
|
||
|
#define UDMA_ALTCTRL_BASEPTR_M 0xFFFFFFFF
|
||
|
#define UDMA_ALTCTRL_BASEPTR_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_WAITONREQ
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLSTATUS
|
||
|
//
|
||
|
// Channel wait on request status:
|
||
|
//
|
||
|
// Bit [Ch] = 0: Once uDMA receives a single or burst request on channel Ch,
|
||
|
// this channel may come out of active state even if request is still present.
|
||
|
// Bit [Ch] = 1: Once uDMA receives a single or burst request on channel Ch, it
|
||
|
// keeps channel Ch in active state until the requests are deasserted. This
|
||
|
// handshake is necessary for channels where the requester is in an
|
||
|
// asynchronous domain or can run at slower clock speed than uDMA
|
||
|
#define UDMA_WAITONREQ_CHNLSTATUS_W 32
|
||
|
#define UDMA_WAITONREQ_CHNLSTATUS_M 0xFFFFFFFF
|
||
|
#define UDMA_WAITONREQ_CHNLSTATUS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_SOFTREQ
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Set the appropriate bit to generate a software uDMA request on the
|
||
|
// corresponding uDMA channel
|
||
|
//
|
||
|
// Bit [Ch] = 0: Does not create a uDMA request for channel Ch
|
||
|
// Bit [Ch] = 1: Creates a uDMA request for channel Ch
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented does not create a
|
||
|
// uDMA request for that channel
|
||
|
#define UDMA_SOFTREQ_CHNLS_W 32
|
||
|
#define UDMA_SOFTREQ_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_SOFTREQ_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_SETBURST
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Returns the useburst status, or disables individual channels from generating
|
||
|
// single uDMA requests. The value R is the arbitration rate and stored in the
|
||
|
// controller data structure.
|
||
|
//
|
||
|
// Read as:
|
||
|
//
|
||
|
// Bit [Ch] = 0: uDMA channel Ch responds to both burst and single requests on
|
||
|
// channel C. The controller performs 2^R, or single, bus transfers.
|
||
|
//
|
||
|
// Bit [Ch] = 1: uDMA channel Ch does not respond to single transfer requests.
|
||
|
// The controller only responds to burst transfer requests and performs 2^R
|
||
|
// transfers.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the CLEARBURST.CHNLS to set bit [Ch] to 0.
|
||
|
// Bit [Ch] = 1: Disables single transfer requests on channel Ch. The
|
||
|
// controller performs 2^R transfers for burst requests.
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_SETBURST_CHNLS_W 32
|
||
|
#define UDMA_SETBURST_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_SETBURST_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CLEARBURST
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Set the appropriate bit to enable single transfer requests.
|
||
|
//
|
||
|
// Write as:
|
||
|
//
|
||
|
// Bit [Ch] = 0: No effect. Use the SETBURST.CHNLS to disable single transfer
|
||
|
// requests.
|
||
|
//
|
||
|
// Bit [Ch] = 1: Enables single transfer requests on channel Ch.
|
||
|
//
|
||
|
// Writing to a bit where a DMA channel is not implemented has no effect.
|
||
|
#define UDMA_CLEARBURST_CHNLS_W 32
|
||
|
#define UDMA_CLEARBURST_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_CLEARBURST_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_SETREQMASK
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Returns the burst and single request mask status, or disables the
|
||
|
// corresponding channel from generating uDMA requests.
|
||
|
//
|
||
|
// Read as:
|
||
|
// Bit [Ch] = 0: External requests are enabled for channel Ch.
|
||
|
// Bit [Ch] = 1: External requests are disabled for channel Ch.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the CLEARREQMASK.CHNLS to enable uDMA requests.
|
||
|
// Bit [Ch] = 1: Disables uDMA burst request channel [C] and uDMA single
|
||
|
// request channel [C] input from generating uDMA requests.
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_SETREQMASK_CHNLS_W 32
|
||
|
#define UDMA_SETREQMASK_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_SETREQMASK_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CLEARREQMASK
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Set the appropriate bit to enable DMA request for the channel.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the SETREQMASK.CHNLS to disable channel C from
|
||
|
// generating requests.
|
||
|
// Bit [Ch] = 1: Enables channel [C] to generate DMA requests.
|
||
|
//
|
||
|
// Writing to a bit where a DMA channel is not implemented has no effect.
|
||
|
#define UDMA_CLEARREQMASK_CHNLS_W 32
|
||
|
#define UDMA_CLEARREQMASK_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_CLEARREQMASK_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_SETCHANNELEN
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Returns the enable status of the channels, or enables the corresponding
|
||
|
// channels.
|
||
|
//
|
||
|
// Read as:
|
||
|
// Bit [Ch] = 0: Channel Ch is disabled.
|
||
|
// Bit [Ch] = 1: Channel Ch is enabled.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the CLEARCHANNELEN.CHNLS to disable a channel
|
||
|
// Bit [Ch] = 1: Enables channel Ch
|
||
|
//
|
||
|
// Writing to a bit where a DMA channel is not implemented has no effect
|
||
|
#define UDMA_SETCHANNELEN_CHNLS_W 32
|
||
|
#define UDMA_SETCHANNELEN_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_SETCHANNELEN_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CLEARCHANNELEN
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Set the appropriate bit to disable the corresponding uDMA channel.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the SETCHANNELEN.CHNLS to enable uDMA channels.
|
||
|
// Bit [Ch] = 1: Disables channel Ch
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_CLEARCHANNELEN_CHNLS_W 32
|
||
|
#define UDMA_CLEARCHANNELEN_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_CLEARCHANNELEN_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_SETCHNLPRIALT
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Returns the channel control data structure status, or selects the alternate
|
||
|
// data structure for the corresponding uDMA channel.
|
||
|
//
|
||
|
// Read as:
|
||
|
// Bit [Ch] = 0: uDMA channel Ch is using the primary data structure.
|
||
|
// Bit [Ch] = 1: uDMA channel Ch is using the alternate data structure.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the CLEARCHNLPRIALT.CHNLS to disable a channel
|
||
|
// Bit [Ch] = 1: Selects the alternate data structure for channel Ch
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_SETCHNLPRIALT_CHNLS_W 32
|
||
|
#define UDMA_SETCHNLPRIALT_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_SETCHNLPRIALT_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CLEARCHNLPRIALT
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Clears the appropriate bit to select the primary data structure for the
|
||
|
// corresponding uDMA channel.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the SETCHNLPRIALT.CHNLS to select the alternate
|
||
|
// data structure.
|
||
|
// Bit [Ch] = 1: Selects the primary data structure for channel Ch.
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_CLEARCHNLPRIALT_CHNLS_W 32
|
||
|
#define UDMA_CLEARCHNLPRIALT_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_CLEARCHNLPRIALT_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_SETCHNLPRIORITY
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Returns the channel priority mask status, or sets the channel priority to
|
||
|
// high.
|
||
|
//
|
||
|
// Read as:
|
||
|
// Bit [Ch] = 0: uDMA channel Ch is using the default priority level.
|
||
|
// Bit [Ch] = 1: uDMA channel Ch is using a high priority level.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the CLEARCHNLPRIORITY.CHNLS to set channel Ch
|
||
|
// to the default priority level.
|
||
|
// Bit [Ch] = 1: Channel Ch uses the high priority level.
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_SETCHNLPRIORITY_CHNLS_W 32
|
||
|
#define UDMA_SETCHNLPRIORITY_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_SETCHNLPRIORITY_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_CLEARCHNLPRIORITY
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Clear the appropriate bit to select the default priority level for the
|
||
|
// specified uDMA channel.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect. Use the SETCHNLPRIORITY.CHNLS to set channel Ch to
|
||
|
// the high priority level.
|
||
|
// Bit [Ch] = 1: Channel Ch uses the default priority level.
|
||
|
//
|
||
|
// Writing to a bit where a uDMA channel is not implemented has no effect
|
||
|
#define UDMA_CLEARCHNLPRIORITY_CHNLS_W 32
|
||
|
#define UDMA_CLEARCHNLPRIORITY_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_CLEARCHNLPRIORITY_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_ERROR
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [0] STATUS
|
||
|
//
|
||
|
// Returns the status of bus error flag in uDMA, or clears this bit
|
||
|
//
|
||
|
// Read as:
|
||
|
//
|
||
|
// 0: No bus error detected
|
||
|
// 1: Bus error detected
|
||
|
//
|
||
|
// Write as:
|
||
|
//
|
||
|
// 0: No effect, status of bus error flag is unchanged.
|
||
|
// 1: Clears the bus error flag.
|
||
|
#define UDMA_ERROR_STATUS 0x00000001
|
||
|
#define UDMA_ERROR_STATUS_BITN 0
|
||
|
#define UDMA_ERROR_STATUS_M 0x00000001
|
||
|
#define UDMA_ERROR_STATUS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_REQDONE
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Reflects the uDMA done status for the given channel, channel [Ch]. It's a
|
||
|
// sticky done bit. Unless cleared by writing a 1, it holds the value of 1.
|
||
|
//
|
||
|
// Read as:
|
||
|
// Bit [Ch] = 0: Request has not completed for channel Ch
|
||
|
// Bit [Ch] = 1: Request has completed for the channel Ch
|
||
|
//
|
||
|
// Writing a 1 to individual bits would clear the corresponding bit.
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: No effect.
|
||
|
// Bit [Ch] = 1: The corresponding [Ch] bit is cleared and is set to 0
|
||
|
#define UDMA_REQDONE_CHNLS_W 32
|
||
|
#define UDMA_REQDONE_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_REQDONE_CHNLS_S 0
|
||
|
|
||
|
//*****************************************************************************
|
||
|
//
|
||
|
// Register: UDMA_O_DONEMASK
|
||
|
//
|
||
|
//*****************************************************************************
|
||
|
// Field: [31:0] CHNLS
|
||
|
//
|
||
|
// Controls the propagation of the uDMA done and active state to the assigned
|
||
|
// peripheral. Specifically used for software channels.
|
||
|
//
|
||
|
// Read as:
|
||
|
// Bit [Ch] = 0: uDMA done and active state for channel Ch is not blocked from
|
||
|
// reaching to the peripherals.
|
||
|
// Note that the uDMA done state for channel [Ch] is blocked from contributing
|
||
|
// to generation of combined uDMA done signal
|
||
|
//
|
||
|
// Bit [Ch] = 1: uDMA done and active state for channel Ch is blocked from
|
||
|
// reaching to the peripherals.
|
||
|
// Note that the uDMA done state for channel [Ch] is not blocked from
|
||
|
// contributing to generation of combined uDMA done signal
|
||
|
//
|
||
|
// Write as:
|
||
|
// Bit [Ch] = 0: Allows uDMA done and active stat to propagate to the
|
||
|
// peripherals.
|
||
|
// Note that this disables uDMA done state for channel [Ch] from contributing
|
||
|
// to generation of combined uDMA done signal
|
||
|
//
|
||
|
// Bit [Ch] = 1: Blocks uDMA done and active state to propagate to the
|
||
|
// peripherals.
|
||
|
// Note that this enables uDMA done for channel [Ch] to contribute to
|
||
|
// generation of combined uDMA done signal.
|
||
|
#define UDMA_DONEMASK_CHNLS_W 32
|
||
|
#define UDMA_DONEMASK_CHNLS_M 0xFFFFFFFF
|
||
|
#define UDMA_DONEMASK_CHNLS_S 0
|
||
|
|
||
|
|
||
|
#endif // __UDMA__
|