ColdFire: Add MCF547x_8x dma code and header files - 3

ColdFire: Add MCF547x_8x dma code and header files - 3

---
 drivers/dma/MCD_tasksInit.c |  247 +++++++++++++++++++++++++++
 drivers/dma/Makefile        |   46 +++++
 include/MCD_dma.h           |  386 ++++++++++++++++++++++++++++++++++++
+++++++
 include/MCD_progCheck.h     |   27 +++
 include/MCD_tasksInit.h     |   60 +++++++
 5 files changed, 766 insertions(+), 0 deletions(-)
 create mode 100644 drivers/dma/MCD_tasksInit.c
 create mode 100644 drivers/dma/Makefile
 create mode 100644 include/MCD_dma.h
 create mode 100644 include/MCD_progCheck.h
 create mode 100644 include/MCD_tasksInit.h

new file mode 100644
index 0000000..0d28713
@@ -0,0 +1,247 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+/* Functions for initializing variable tables of different types of

tasks. */
+
+/*
+ * Do not edit!
+ */
+
+#ifdef CONFIG_FSLDMAFEC
+
+#include <MCD_dma.h>
+
+extern dmaRegs *MCD_dmaBar;
+
+/* Task 0 */
+
+void MCD_startDmaChainNoEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 2, (u32) currBD); /* var[2] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff &
srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff &
destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 11, (u32) xferSize); /* var[11] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff &
xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 3, (u32) 0x00000000); /* var[3] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x00000000); /* var[12] */
+ MCD_SET_VAR(taskChan, 13, (u32) 0x80000000); /* var[13] */
+ MCD_SET_VAR(taskChan, 14, (u32) 0x00000010); /* var[14] */
+ MCD_SET_VAR(taskChan, 15, (u32) 0x00000004); /* var[15] */
+ MCD_SET_VAR(taskChan, 16, (u32) 0x08000000); /* var[16] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0x80000000); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x80000001); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x40000000); /* inc[6] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 1 */
+
+void MCD_startDmaSingleNoEu(char *srcAddr, short srcIncr, char *destAddr,

+			    short destIncr, int dmaSize, short xferSizeIncr,
+			    int flags, int *currBD, int *cSave,
+			    volatile TaskTableEntry * taskTable, int channel)

+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 7, (u32) srcAddr); /* var[7] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff &
srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) destAddr); /* var[2] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff &
destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 3, (u32) dmaSize); /* var[3] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff &
xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 5, (u32) flags); /* var[5] */
+ MCD_SET_VAR(taskChan, 1, (u32) currBD); /* var[1] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000004); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x08000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0x80000001); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x40000000); /* inc[5] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 2 */
+
+void MCD_startDmaChainEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 3, (u32) currBD); /* var[3] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff &
srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff &
destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 12, (u32) xferSize); /* var[12] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff &
xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) 0x00000000); /* var[2] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 11, (u32) 0x00000000); /* var[11] */
+ MCD_SET_VAR(taskChan, 13, (u32) 0x00000000); /* var[13] */
+ MCD_SET_VAR(taskChan, 14, (u32) 0x80000000); /* var[14] */
+ MCD_SET_VAR(taskChan, 15, (u32) 0x00000010); /* var[15] */
+ MCD_SET_VAR(taskChan, 16, (u32) 0x00000001); /* var[16] */
+ MCD_SET_VAR(taskChan, 17, (u32) 0x00000004); /* var[17] */
+ MCD_SET_VAR(taskChan, 18, (u32) 0x08000000); /* var[18] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0x80000000); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0xc0000000); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x80000001); /* inc[6] */
+ MCD_SET_VAR(taskChan, 31, (u32) 0x40000000); /* inc[7] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 3 */
+
+void MCD_startDmaSingleEu(char *srcAddr, short srcIncr, char *destAddr,

+			  short destIncr, int dmaSize, short xferSizeIncr,
+			  int flags, int *currBD, int *cSave,
+			  volatile TaskTableEntry * taskTable, int channel)

+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 8, (u32) srcAddr); /* var[8] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff &
srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 3, (u32) destAddr); /* var[3] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff &
destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 4, (u32) dmaSize); /* var[4] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff &
xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 6, (u32) flags); /* var[6] */
+ MCD_SET_VAR(taskChan, 2, (u32) currBD); /* var[2] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000001); /* var[10] */
+ MCD_SET_VAR(taskChan, 11, (u32) 0x00000004); /* var[11] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x08000000); /* var[12] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0xc0000000); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x80000000); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x80000001); /* inc[6] */
+ MCD_SET_VAR(taskChan, 31, (u32) 0x40000000); /* inc[7] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 4 */
+
+void MCD_startDmaENetRcv(char *bDBase, char *currBD, char *rcvFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 0, (u32) bDBase); /* var[0] */
+ MCD_SET_VAR(taskChan, 3, (u32) currBD); /* var[3] */
+ MCD_SET_VAR(taskChan, 6, (u32) rcvFifoPtr); /* var[6] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) 0x00000000); /* var[2] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x0000ffff); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x30000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 11, (u32) 0x0fffffff); /* var[11] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x00000008); /* var[12] */
+ MCD_SET_VAR(taskChan, 24, (u32) 0x00000000); /* inc[0] */
+ MCD_SET_VAR(taskChan, 25, (u32) 0x60000000); /* inc[1] */
+ MCD_SET_VAR(taskChan, 26, (u32) 0x20000004); /* inc[2] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x40000000); /* inc[3] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 5 */
+
+void MCD_startDmaENetXmit(char *bDBase, char *currBD, char *xmitFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 0, (u32) bDBase); /* var[0] */
+ MCD_SET_VAR(taskChan, 3, (u32) currBD); /* var[3] */
+ MCD_SET_VAR(taskChan, 11, (u32) xmitFifoPtr); /* var[11] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) 0x00000000); /* var[2] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x00000000); /* var[12] */
+ MCD_SET_VAR(taskChan, 13, (u32) 0x0000ffff); /* var[13] */
+ MCD_SET_VAR(taskChan, 14, (u32) 0xffffffff); /* var[14] */
+ MCD_SET_VAR(taskChan, 15, (u32) 0x00000004); /* var[15] */
+ MCD_SET_VAR(taskChan, 16, (u32) 0x00000008); /* var[16] */
+ MCD_SET_VAR(taskChan, 24, (u32) 0x00000000); /* inc[0] */
+ MCD_SET_VAR(taskChan, 25, (u32) 0x60000000); /* inc[1] */
+ MCD_SET_VAR(taskChan, 26, (u32) 0x40000000); /* inc[2] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0xc000fffc); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0xe0000004); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x80000000); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x4000ffff); /* inc[6] */
+ MCD_SET_VAR(taskChan, 31, (u32) 0xe0000001); /* inc[7] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+#endif /* CONFIG_FSLDMAFEC */
+

data
+ * MCD_U16_REVERSE - to reverse the 16-bit halves of each 32-bit data
+ * value being DMAed
+ * MCD_U16_BYTE_REVERSE - to reverse the byte halves of each 16-bit
half of
+ * each 32-bit data value DMAed
+ * MCD_NO_BIT_REV - do not reverse the bits of each byte DMAed
+ * MCD_BIT_REV - reverse the bits of each byte DMAed
+ * MCD_CRC16 - to perform CRC-16 on DMAed data
+ * MCD_CRCCCITT - to perform CRC-CCITT on DMAed data
+ * MCD_CRC32 - to perform CRC-32 on DMAed data
+ * MCD_CSUMINET - to perform internet checksums on DMAed data
+ * MCD_NO_CSUM - to perform no checksumming
+ */
+#define MCD_NO_BYTE_SWAP 0x00045670
+#define MCD_BYTE_REVERSE 0x00076540
+#define MCD_U16_REVERSE 0x00067450
+#define MCD_U16_BYTE_REVERSE 0x00054760
+#define MCD_NO_BIT_REV 0x00000000
+#define MCD_BIT_REV 0x00088880
+/* CRCing: */
+#define MCD_CRC16 0xc0100000
+#define MCD_CRCCCITT 0xc0200000
+#define MCD_CRC32 0xc0300000
+#define MCD_CSUMINET 0xc0400000
+#define MCD_NO_CSUM 0xa0000000
+
+#define MCD_FUNC_NOEU1 (MCD_NO_BYTE_SWAP | MCD_NO_BIT_REV | \
+ MCD_NO_CSUM)
+#define MCD_FUNC_NOEU2 (MCD_NO_BYTE_SWAP | MCD_NO_CSUM)
+
+/* Constants for the flags parameter */
+#define MCD_TT_FLAGS_RL 0x00000001 /* Read line */
+#define MCD_TT_FLAGS_CW 0x00000002 /* Combine Writes */
+#define MCD_TT_FLAGS_SP 0x00000004 /* MCF547x/548x ONLY */
+#define MCD_TT_FLAGS_MASK 0x000000ff
+#define MCD_TT_FLAGS_DEF (MCD_TT_FLAGS_RL | MCD_TT_FLAGS_CW)
+
+#define MCD_SINGLE_DMA 0x00000100 /* Unchained DMA */
+#define MCD_CHAIN_DMA /* TBD */
+#define MCD_EU_DMA /* TBD */
+#define MCD_FECTX_DMA 0x00001000 /* FEC TX ring DMA */
+#define MCD_FECRX_DMA 0x00002000 /* FEC RX ring DMA */
+
+/* these flags are valid for MCD_startDma and the chained buffer descriptors */
+/*
+ * MCD_BUF_READY - indicates that this buf is now under the DMA's ctrl
+ * MCD_WRAP - to tell the FEC Dmas to wrap to the first BD
+ * MCD_INTERRUPT - to generate an interrupt after completion of the DMA
+ * MCD_END_FRAME - tell the DMA to end the frame when transferring
+ * last byte of data in buffer
+ * MCD_CRC_RESTART - to empty out the accumulated checksum prior to
+ * performing the DMA
+ */
+#define MCD_BUF_READY 0x80000000
+#define MCD_WRAP 0x20000000
+#define MCD_INTERRUPT 0x10000000
+#define MCD_END_FRAME 0x08000000
+#define MCD_CRC_RESTART 0x40000000
+
+/* Defines for the FEC buffer descriptor control/status word*/
+#define MCD_FEC_BUF_READY 0x8000
+#define MCD_FEC_WRAP 0x2000
+#define MCD_FEC_INTERRUPT 0x1000
+#define MCD_FEC_END_FRAME 0x0800
+
+/* Defines for general intuitiveness */
+
+#define MCD_TRUE 1
+#define MCD_FALSE 0
+
+/* Three different cases for destination and source. */
+#define MINUS1 -1
+#define ZERO 0
+#define PLUS1 1
+
+#ifndef DEFINESONLY
+
+/* Task Table Entry struct*/
+typedef struct {
+ u32 TDTstart; /* task descriptor table start */
+ u32 TDTend; /* task descriptor table end */
+ u32 varTab; /* variable table start */
+ u32 FDTandFlags; /* function descriptor table start & flags */
+ volatile u32 descAddrAndStatus;
+ volatile u32 modifiedVarTab;
+ u32 contextSaveSpace; /* context save space start */
+ u32 literalBases;
+} TaskTableEntry;
+
+/* Chained buffer descriptor:
+ * flags - flags describing the DMA
+ * csumResult - checksum performed since last checksum reset
+ * srcAddr - the address to move data from
+ * destAddr - the address to move data to
+ * lastDestAddr - the last address written to
+ * dmaSize - the no of bytes to xfer independent of the xfer sz
+ * next - next buffer descriptor in chain
+ * info - private info about this descriptor; DMA does not affect it
+ */
+typedef volatile struct MCD_bufDesc_struct MCD_bufDesc;
+struct MCD_bufDesc_struct {
+ u32 flags;
+ u32 csumResult;
+ s8 *srcAddr;
+ s8 *destAddr;
+ s8 *lastDestAddr;
+ u32 dmaSize;
+ MCD_bufDesc *next;
+ u32 info;
+};
+
+/* Progress Query struct:
+ * lastSrcAddr - the most-recent or last, post-increment source address
+ * lastDestAddr - the most-recent or last, post-increment destination
address
+ * dmaSize - the amount of data transferred for the current buffer
+ * currBufDesc - pointer to the current buffer descriptor being DMAed
+ */
+
+typedef volatile struct MCD_XferProg_struct {
+ s8 *lastSrcAddr;
+ s8 *lastDestAddr;
+ u32 dmaSize;
+ MCD_bufDesc *currBufDesc;
+} MCD_XferProg;
+
+/* FEC buffer descriptor */
+typedef volatile struct MCD_bufDescFec_struct {
+ u16 statCtrl;
+ u16 length;
+ u32 dataPointer;
+} MCD_bufDescFec;
+ +/*************************************************************************/ +/* API function Prototypes - see MCD_dmaApi.c for further notes */ +
+/* MCD_startDma starts a particular kind of DMA:
+ * srcAddr - the channel on which to run the DMA
+ * srcIncr - the address to move data from, or buffer-descriptor
address
+ * destAddr - the amount to increment the source address per transfer
+ * destIncr - the address to move data to
+ * dmaSize - the amount to increment the destination address per
transfer
+ * xferSize - the number bytes in of each data movement (1, 2, or 4)
+ * initiator - what device initiates the DMA
+ * priority - priority of the DMA
+ * flags - flags describing the DMA
+ * funcDesc - description of byte swapping, bit swapping, and CRC
actions
+ */
+int MCD_startDma(int channel, s8 * srcAddr, s16 srcIncr, s8 * destAddr,
+ s16 destIncr, u32 dmaSize, u32 xferSize, u32 initiator,
+ int priority, u32 flags, u32 funcDesc);
+
+/*
+ * MCD_initDma() initializes the DMA API by setting up a pointer to the DMA
+ * registers, relocating and creating the appropriate task structures, and
+ * setting up some global settings
+ */
+int MCD_initDma(dmaRegs * sDmaBarAddr, void *taskTableDest, u32 flags); +
+/* MCD_dmaStatus() returns the status of the DMA on the requested channel. */
+int MCD_dmaStatus(int channel);
+
+/* MCD_XferProgrQuery() returns progress of DMA on requested channel */ +int MCD_XferProgrQuery(int channel, MCD_XferProg * progRep);
+
+/*
+ * MCD_killDma() halts the DMA on the requested channel, without any
+ * intention of resuming the DMA.
+ */
+int MCD_killDma(int channel);
+
+/*
+ * MCD_continDma() continues a DMA which as stopped due to encountering an
+ * unready buffer descriptor.
+ */
+int MCD_continDma(int channel);
+
+/*
+ * MCD_pauseDma() pauses the DMA on the given channel ( if any DMA is
+ * running on that channel).
+ */
+int MCD_pauseDma(int channel);
+
+/*
+ * MCD_resumeDma() resumes the DMA on a given channel (if any DMA is
+ * running on that channel).
+ */
+int MCD_resumeDma(int channel);
+
+/* MCD_csumQuery provides the checksum/CRC after performing a non- chained DMA */
+int MCD_csumQuery(int channel, u32 * csum);
+
+/*
+ * MCD_getCodeSize provides the packed size required by the microcoded task
+ * and structures.
+ */
+int MCD_getCodeSize(void);
+
+/*
+ * MCD_getVersion provides a pointer to a version string and returns a
+ * version number.
+ */
+int MCD_getVersion(char **longVersion);
+
+/* macro for setting a location in the variable table */ +#define MCD_SET_VAR(taskTab,idx,value) ((u32 *)(taskTab)->varTab)[idx] = value
+/* Note that MCD_SET_VAR() is invoked many times in firing up a DMA function,
+ so I'm avoiding surrounding it with "do {} while(0)" */
+
+#endif /* DEFINESONLY */
+
+#endif /* _MCD_API_H */

new file mode 100644
index 0000000..55f7574
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+ /* This file is autogenerated. Do not change */
+#define CURRBD		4
+#define DCOUNT		6
+#define DESTPTR		5
+#define SRCPTR		7

new file mode 100644
index 0000000..684d5aa
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef MCD_TSK_INIT_H
+#define MCD_TSK_INIT_H 1
+
+/*
+ * Do not edit!
+ */
+
+/* Task 0 */
+void MCD_startDmaChainNoEu(int *currBD, short srcIncr, short destIncr,
+			   int xferSize, short xferSizeIncr, int *cSave,
+			   volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 1 */
+void MCD_startDmaSingleNoEu(char *srcAddr, short srcIncr, char

*destAddr,

+			    short destIncr, int dmaSize, short xferSizeIncr,
+			    int flags, int *currBD, int *cSave,
+			    volatile TaskTableEntry * taskTable, int channel);

+
+/* Task 2 */
+void MCD_startDmaChainEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 3 */
+void MCD_startDmaSingleEu(char *srcAddr, short srcIncr, char *destAddr,

+			  short destIncr, int dmaSize, short xferSizeIncr,
+			  int flags, int *currBD, int *cSave,
+			  volatile TaskTableEntry * taskTable, int channel);

+
+/* Task 4 */
+void MCD_startDmaENetRcv(char *bDBase, char *currBD, char *rcvFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 5 */
+void MCD_startDmaENetXmit(char *bDBase, char *currBD, char *xmitFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel);
+
+#endif /* MCD_TSK_INIT_H */

1.5.2