Adding subset of Kinetis SDK

This is just the free-software-licensed stuff and the KL27Z4 stuff.

1 files changed, 166 insertions, 0 deletions

diff --git a/KSDK_1.2.0/platform/hal/src/dma/fsl_dma_hal.c b/KSDK_1.2.0/platform/hal/src/dma/fsl_dma_hal.c
new file mode 100755
index 0000000..5b8a7fb
--- /dev/null
+++ b/KSDK_1.2.0/platform/hal/src/dma/fsl_dma_hal.c
@@ -0,0 +1,166 @@
+/*
+* Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* o Redistributions of source code must retain the above copyright notice, this list
+*	of conditions and the following disclaimer.
+*
+* o 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.
+*
+* o Neither the name of Freescale Semiconductor, Inc. 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.
+*/
+#include "fsl_dma_hal.h"
+#if FSL_FEATURE_SOC_DMA_COUNT
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : DMA_HAL_Init
+ * Description   : Set all registers for the channel to 0.
+ *
+ *END**************************************************************************/
+void DMA_HAL_Init(DMA_Type * base,uint32_t channel)
+{
+    assert(channel < FSL_FEATURE_DMA_DMAMUX_CHANNELS);
+    DMA_WR_SAR(base,channel,0);
+    DMA_WR_DAR(base,channel,0);
+    DMA_WR_DCR(base,channel,0);
+    DMA_WR_DSR(base,channel, 0);
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : DMA_HAL_ConfigTransfer
+ * Description   : Configure the basic paramenters for dma transfer.
+ *
+ *END**************************************************************************/
+void DMA_HAL_ConfigTransfer(
+    DMA_Type * base,uint32_t channel,dma_transfer_size_t size,dma_transfer_type_t type,
+    uint32_t sourceAddr, uint32_t destAddr, uint32_t length)
+{
+
+    dma_channel_link_config_t config;
+
+    config.channel1 = 0;
+    config.channel2 = 0;
+    config.linkType = kDmaChannelLinkDisable;
+
+    /* Common configuration. */
+    DMA_HAL_SetAutoAlignCmd(base, channel, false);
+    DMA_HAL_SetCycleStealCmd(base, channel, true);
+    DMA_HAL_SetAsyncDmaRequestCmd(base, channel, false);
+    DMA_HAL_SetDisableRequestAfterDoneCmd(base, channel, true);
+    DMA_HAL_SetChanLink(base, channel, &config);
+
+    DMA_HAL_SetIntCmd(base, channel, true);
+    DMA_HAL_SetSourceAddr(base, channel, sourceAddr);
+    DMA_HAL_SetDestAddr(base, channel, destAddr);
+    DMA_HAL_SetSourceModulo(base, channel, kDmaModuloDisable);
+    DMA_HAL_SetDestModulo(base, channel, kDmaModuloDisable);
+    DMA_HAL_SetSourceTransferSize(base, channel, size);
+    DMA_HAL_SetDestTransferSize(base, channel, size);
+    DMA_HAL_SetTransferCount(base, channel, length);
+
+    switch (type)
+    {
+      case kDmaMemoryToPeripheral:
+          DMA_HAL_SetSourceIncrementCmd(base, channel, true);
+          DMA_HAL_SetDestIncrementCmd(base, channel, false);
+          break;
+      case kDmaPeripheralToMemory:
+          DMA_HAL_SetSourceIncrementCmd(base, channel, false);
+          DMA_HAL_SetDestIncrementCmd(base, channel, true);
+          break;
+      case kDmaMemoryToMemory:
+          DMA_HAL_SetSourceIncrementCmd(base, channel, true);
+          DMA_HAL_SetDestIncrementCmd(base, channel, true);
+          break;
+      default:
+          break;
+    }
+
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : DMA_HAL_SetChanLink
+ * Description   : Configure the channel link feature.
+ *
+ *END**************************************************************************/
+void DMA_HAL_SetChanLink(
+        DMA_Type * base, uint8_t channel, dma_channel_link_config_t *mode)
+{
+    assert(channel < FSL_FEATURE_DMA_DMAMUX_CHANNELS);
+
+    DMA_BWR_DCR_LINKCC(base, channel, mode->linkType);
+
+    switch(mode->linkType)
+    {
+        case kDmaChannelLinkDisable:
+            break;
+        case kDmaChannelLinkChan1AndChan2:
+            DMA_BWR_DCR_LCH1(base, channel, mode->channel1);
+            DMA_BWR_DCR_LCH2(base, channel, mode->channel2);
+            DMA_HAL_SetCycleStealCmd(base,channel,true);
+            break;
+        case kDmaChannelLinkChan1:
+            DMA_BWR_DCR_LCH1(base, channel, mode->channel1);
+            DMA_HAL_SetCycleStealCmd(base,channel,true);
+            break;
+        case kDmaChannelLinkChan1AfterBCR0:
+            DMA_BWR_DCR_LCH1(base, channel, mode->channel1);
+            break;
+        default:
+            break;
+    }
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : DMA_HAL_GetStatus
+ * Description   : Get dma transfer status.
+ *
+ *END**************************************************************************/
+dma_error_status_t DMA_HAL_GetStatus(DMA_Type * base, uint8_t channel)
+{
+    assert(channel < FSL_FEATURE_DMA_DMAMUX_CHANNELS);
+    
+    dma_error_status_t status;
+    uint32_t val = DMA_RD_DSR_BCR(base,channel);
+    status.dmaBytesToBeTransffered = val & DMA_DSR_BCR_BCR_MASK;
+    status.dmaBusy = (bool)((val & DMA_DSR_BCR_BSY_MASK) >> DMA_DSR_BCR_BSY_SHIFT);
+    status.dmaTransDone = (bool)((val & DMA_DSR_BCR_DONE_MASK) >> DMA_DSR_BCR_DONE_SHIFT);
+    status.dmaPendingRequest = (bool)((val & DMA_DSR_BCR_REQ_MASK) >> DMA_DSR_BCR_REQ_SHIFT);
+    status.dmaDestBusError = (bool)((val & DMA_DSR_BCR_BED_MASK) >> DMA_DSR_BCR_BED_SHIFT);
+    status.dmaSourceBusError = (bool)((val & DMA_DSR_BCR_BES_MASK) >> DMA_DSR_BCR_BES_SHIFT);
+    status.dmaConfigError = (bool)((val & DMA_DSR_BCR_CE_MASK) >> DMA_DSR_BCR_CE_SHIFT);
+    return status;
+}
+
+#endif
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/
+