diff options
Diffstat (limited to 'nuttx/drivers/wireless/cc3000/hci.c')
| -rw-r--r-- | nuttx/drivers/wireless/cc3000/hci.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/nuttx/drivers/wireless/cc3000/hci.c b/nuttx/drivers/wireless/cc3000/hci.c new file mode 100644 index 000000000..38e126f3c --- /dev/null +++ b/nuttx/drivers/wireless/cc3000/hci.c @@ -0,0 +1,230 @@ +/*****************************************************************************
+*
+* hci.c - CC3000 Host Driver Implementation.
+* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+*
+* 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.
+*
+* Neither the name of Texas Instruments Incorporated 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
+* OWNER 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.
+*
+*****************************************************************************/
+
+//*****************************************************************************
+//
+//! \addtogroup hci_app
+//! @{
+//
+//*****************************************************************************
+
+#include <string.h>
+#include <nuttx/cc3000/cc3000_common.h>
+#include <nuttx/cc3000/hci.h>
+#include <nuttx/cc3000/spi.h>
+#include <nuttx/cc3000/evnt_handler.h>
+#include <nuttx/cc3000/wlan.h>
+
+#define SL_PATCH_PORTION_SIZE (1000)
+
+
+//*****************************************************************************
+//
+//! hci_command_send
+//!
+//! @param usOpcode command operation code
+//! @param pucBuff pointer to the command's arguments buffer
+//! @param ucArgsLength length of the arguments
+//!
+//! @return none
+//!
+//! @brief Initiate an HCI command.
+//
+//*****************************************************************************
+unsigned short
+hci_command_send(unsigned short usOpcode, unsigned char *pucBuff,
+ unsigned char ucArgsLength)
+{
+ unsigned char *stream;
+
+ stream = (pucBuff + SPI_HEADER_SIZE);
+
+ UINT8_TO_STREAM(stream, HCI_TYPE_CMND);
+ stream = UINT16_TO_STREAM(stream, usOpcode);
+ UINT8_TO_STREAM(stream, ucArgsLength);
+
+ //Update the opcode of the event we will be waiting for
+ SpiWrite(pucBuff, ucArgsLength + SIMPLE_LINK_HCI_CMND_HEADER_SIZE);
+
+ return(0);
+}
+
+//*****************************************************************************
+//
+//! hci_data_send
+//!
+//! @param usOpcode command operation code
+//! @param ucArgs pointer to the command's arguments buffer
+//! @param usArgsLength length of the arguments
+//! @param ucTail pointer to the data buffer
+//! @param usTailLength buffer length
+//!
+//! @return none
+//!
+//! @brief Initiate an HCI data write operation
+//
+//*****************************************************************************
+long
+hci_data_send(unsigned char ucOpcode,
+ unsigned char *ucArgs,
+ unsigned short usArgsLength,
+ unsigned short usDataLength,
+ const unsigned char *ucTail,
+ unsigned short usTailLength)
+{
+ unsigned char *stream;
+
+ stream = ((ucArgs) + SPI_HEADER_SIZE);
+
+ UINT8_TO_STREAM(stream, HCI_TYPE_DATA);
+ UINT8_TO_STREAM(stream, ucOpcode);
+ UINT8_TO_STREAM(stream, usArgsLength);
+ stream = UINT16_TO_STREAM(stream, usArgsLength + usDataLength + usTailLength);
+
+ // Send the packet over the SPI
+ SpiWrite(ucArgs, SIMPLE_LINK_HCI_DATA_HEADER_SIZE + usArgsLength + usDataLength + usTailLength);
+
+ return(ESUCCESS);
+}
+
+
+//*****************************************************************************
+//
+//! hci_data_command_send
+//!
+//! @param usOpcode command operation code
+//! @param pucBuff pointer to the data buffer
+//! @param ucArgsLength arguments length
+//! @param ucDataLength data length
+//!
+//! @return none
+//!
+//! @brief Prepeare HCI header and initiate an HCI data write operation
+//
+//*****************************************************************************
+void hci_data_command_send(unsigned short usOpcode, unsigned char *pucBuff,
+ unsigned char ucArgsLength,unsigned short ucDataLength)
+{
+ unsigned char *stream = (pucBuff + SPI_HEADER_SIZE);
+
+ UINT8_TO_STREAM(stream, HCI_TYPE_DATA);
+ UINT8_TO_STREAM(stream, usOpcode);
+ UINT8_TO_STREAM(stream, ucArgsLength);
+ stream = UINT16_TO_STREAM(stream, ucArgsLength + ucDataLength);
+
+ // Send the command over SPI on data channel
+ SpiWrite(pucBuff, ucArgsLength + ucDataLength + SIMPLE_LINK_HCI_DATA_CMND_HEADER_SIZE);
+
+ return;
+}
+
+//*****************************************************************************
+//
+//! hci_patch_send
+//!
+//! @param usOpcode command operation code
+//! @param pucBuff pointer to the command's arguments buffer
+//! @param patch pointer to patch content buffer
+//! @param usDataLength data length
+//!
+//! @return none
+//!
+//! @brief Prepeare HCI header and initiate an HCI patch write operation
+//
+//*****************************************************************************
+void
+hci_patch_send(unsigned char ucOpcode, unsigned char *pucBuff, char *patch, unsigned short usDataLength)
+{
+ unsigned char *data_ptr = (pucBuff + SPI_HEADER_SIZE);
+ unsigned short usTransLength;
+ unsigned char *stream = (pucBuff + SPI_HEADER_SIZE);
+
+ UINT8_TO_STREAM(stream, HCI_TYPE_PATCH);
+ UINT8_TO_STREAM(stream, ucOpcode);
+ stream = UINT16_TO_STREAM(stream, usDataLength + SIMPLE_LINK_HCI_PATCH_HEADER_SIZE);
+
+ if (usDataLength <= SL_PATCH_PORTION_SIZE)
+ {
+ UINT16_TO_STREAM(stream, usDataLength);
+ stream = UINT16_TO_STREAM(stream, usDataLength);
+ memcpy((pucBuff + SPI_HEADER_SIZE) + HCI_PATCH_HEADER_SIZE, patch, usDataLength);
+
+ // Update the opcode of the event we will be waiting for
+ SpiWrite(pucBuff, usDataLength + HCI_PATCH_HEADER_SIZE);
+ }
+ else
+ {
+
+ usTransLength = (usDataLength/SL_PATCH_PORTION_SIZE);
+ UINT16_TO_STREAM(stream, usDataLength + SIMPLE_LINK_HCI_PATCH_HEADER_SIZE + usTransLength*SIMPLE_LINK_HCI_PATCH_HEADER_SIZE);
+ stream = UINT16_TO_STREAM(stream, SL_PATCH_PORTION_SIZE);
+ memcpy(pucBuff + SPI_HEADER_SIZE + HCI_PATCH_HEADER_SIZE, patch, SL_PATCH_PORTION_SIZE);
+ usDataLength -= SL_PATCH_PORTION_SIZE;
+ patch += SL_PATCH_PORTION_SIZE;
+
+ // Update the opcode of the event we will be waiting for
+ SpiWrite(pucBuff, SL_PATCH_PORTION_SIZE + HCI_PATCH_HEADER_SIZE);
+
+ while (usDataLength)
+ {
+ if (usDataLength <= SL_PATCH_PORTION_SIZE)
+ {
+ usTransLength = usDataLength;
+ usDataLength = 0;
+
+ }
+ else
+ {
+ usTransLength = SL_PATCH_PORTION_SIZE;
+ usDataLength -= usTransLength;
+ }
+
+ *(unsigned short *)data_ptr = usTransLength;
+ memcpy(data_ptr + SIMPLE_LINK_HCI_PATCH_HEADER_SIZE, patch, usTransLength);
+ patch += usTransLength;
+
+ // Update the opcode of the event we will be waiting for
+ SpiWrite((unsigned char *)data_ptr, usTransLength + sizeof(usTransLength));
+ }
+ }
+}
+
+//*****************************************************************************
+//
+// Close the Doxygen group.
+//! @}
+//
+//
+//*****************************************************************************
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