TI's CC3100 websocket camera demo with Arducam mini ov5642 and freertos. Should work with other M3's. Work in progress test demo.
simplelink/cc3100_spi.cpp
- Committer:
- dflet
- Date:
- 2015-09-11
- Revision:
- 1:e448e81c416f
- Parent:
- 0:400d8e75a8d0
File content as of revision 1:e448e81c416f:
/* * spi.cpp mbed * * Copyright (C) 2014 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. * */ #include "cc3100_simplelink.h" #include "cc3100_spi.h" #include "cli_uart.h" #include "osi.h" #include "portmacro.h" #include "projdefs.h" OsiMsgQ_t g_PBQueue; /*Message Queue*/ uint32_t g_publishCount; namespace mbed_cc3100 { P_EVENT_HANDLER pIraEventHandler = 0; uint8_t IntIsMasked; cc3100_spi::cc3100_spi(PinName button1_irq, PinName button2_irq, PinName cc3100_irq, PinName cc3100_nHIB, PinName cc3100_cs, SPI cc3100_spi, cc3100_driver &driver) : /*_sw1_irq(button1_irq), _sw2_irq(button2_irq),*/ _wlan_irq(cc3100_irq), _wlan_nHIB(cc3100_nHIB), _wlan_cs(cc3100_cs), _wlan_spi(cc3100_spi), _driver(driver) { _wlan_spi.format(8,0); _wlan_spi.frequency(16000000); _wlan_irq.rise(this, &cc3100_spi::IntSpiGPIOHandler); //_SlDrvRxIrqHandler is called from IntSpiGPIOHandler // _sw1_irq.rise(this, &cc3100_spi::buttonHandler_1); // _sw2_irq.rise(this, &cc3100_spi::buttonHandler_2); _wlan_nHIB = 0; _wlan_cs = 1; wait_ms(100); } cc3100_spi::~cc3100_spi() { } int cc3100_spi::spi_Close(Fd_t fd) { // Disable WLAN Interrupt ... cc3100_InterruptDisable(); return NONOS_RET_OK; } void cc3100_spi::button1_InterruptDisable() { // _sw1_irq.rise(NULL); wait_ms(1); } void cc3100_spi::button2_InterruptDisable() { // _sw2_irq.rise(NULL); wait_ms(1); } void cc3100_spi::button1_InterruptEnable() { // _sw1_irq.rise(this, &cc3100_spi::buttonHandler_1); } void cc3100_spi::button2_InterruptEnable() { // _sw2_irq.rise(this, &cc3100_spi::buttonHandler_2); } void cc3100_spi::cc3100_InterruptEnable() { _wlan_irq.rise(this, &cc3100_spi::IntSpiGPIOHandler); } void cc3100_spi::cc3100_InterruptDisable() { _wlan_irq.rise(NULL); } void cc3100_spi::CC3100_disable() { _wlan_nHIB = 0; } void cc3100_spi::CC3100_enable() { _wlan_nHIB = 1; } Fd_t cc3100_spi::spi_Open(int8_t *ifName, uint32_t flags) { // 50 ms delay wait_ms(50); // Enable WLAN interrupt cc3100_InterruptEnable(); return NONOS_RET_OK; } int cc3100_spi::spi_Write(Fd_t fd, uint8_t *pBuff, int len) { int len_to_return = len; // Uart_Write((uint8_t*)"Write\r\n"); _wlan_cs = 0; while(len) { _wlan_spi.write(*pBuff++); len--; } _wlan_cs = 1; return len_to_return; } int cc3100_spi::spi_Read(Fd_t fd, uint8_t *pBuff, int len) { int i = 0; // Uart_Write((uint8_t*)"Read\r\n"); _wlan_cs = 0; for (i = 0; i < len; i++) { pBuff[i] = _wlan_spi.write(0xFF); } _wlan_cs = 1; return len; } void cc3100_spi::IntSpiGPIOHandler(void) { // Uart_Write((uint8_t*)"Int\r\n"); if(_wlan_irq){ _driver._SlDrvRxIrqHandler(0); } } /*! \brief register an interrupt handler for the host IRQ \param[in] InterruptHdl - pointer to interrupt handler function \param[in] pValue - pointer to a memory strcuture that is passed to the interrupt handler. \return upon successful registration, the function shall return 0. Otherwise, -1 shall be returned \sa \note If there is already registered interrupt handler, the function should overwrite the old handler with the new one \warning */ int cc3100_spi::registerInterruptHandler(P_EVENT_HANDLER InterruptHdl , void* pValue) { pIraEventHandler = InterruptHdl; return 0; } /*! \brief Unmasks the Host IRQ \param[in] none \return none \warning */ void cc3100_spi::UnMaskIntHdlr() { IntIsMasked = FALSE; } /*! \brief Masks the Host IRQ \param[in] none \return none \warning */ void cc3100_spi::MaskIntHdlr() { IntIsMasked = TRUE; } /*! \brief Handles the button press 1 on the MCU and updates the queue with relevant action. \param none \return none */ void cc3100_spi::buttonHandler_1(void) { int32_t rv = 0; button1_InterruptDisable(); osi_messages var; g_publishCount++; var = PUSH_BUTTON_1_PRESSED; rv = osi_MsgQWrite(&g_PBQueue, &var, OSI_NO_WAIT); if(rv < 0){ Uart_Write((uint8_t*)"Messsage queue failed\r\n"); } } /*! \brief Handles the button press 2 on the MCU and updates the queue with relevant action. \param none \return none */ void cc3100_spi::buttonHandler_2(void) { int32_t rv = 0; button2_InterruptDisable(); osi_messages var; g_publishCount++; var = PUSH_BUTTON_2_PRESSED; rv = osi_MsgQWrite(&g_PBQueue, &var, OSI_NO_WAIT); if(rv < 0){ Uart_Write((uint8_t*)"Messsage queue failed\r\n"); } } }//namespace mbed_cc3100