高 杨 / Mbed 2 deprecated cc3100_Test_Demo21

TI's CC3100. A test demo with very little testing done!

Dependencies:   mbed

Fork of cc3100_Test_Demo2 by 高 杨

simplelink/cc3100_spi.cpp@7:0687d16b9781, 2015-09-03 (annotated)

Committer:
dflet
Date:
Thu Sep 03 13:43:50 2015 +0000
Revision:
7:0687d16b9781
Parent:
0:e89ba455dbcf
Child:
9:b8da46b97970
Oooops SPI mode change from 1 to 0. Must be some clock skew to get away with that! Other updates.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dflet 0:e89ba455dbcf 1 /*
dflet 0:e89ba455dbcf 2 * spi.cpp mbed
dflet 0:e89ba455dbcf 3 *
dflet 0:e89ba455dbcf 4 * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
dflet 0:e89ba455dbcf 5 *
dflet 0:e89ba455dbcf 6 *
dflet 0:e89ba455dbcf 7 * Redistribution and use in source and binary forms, with or without
dflet 0:e89ba455dbcf 8 * modification, are permitted provided that the following conditions
dflet 0:e89ba455dbcf 9 * are met:
dflet 0:e89ba455dbcf 10 *
dflet 0:e89ba455dbcf 11 * Redistributions of source code must retain the above copyright
dflet 0:e89ba455dbcf 12 * notice, this list of conditions and the following disclaimer.
dflet 0:e89ba455dbcf 13 *
dflet 0:e89ba455dbcf 14 * Redistributions in binary form must reproduce the above copyright
dflet 0:e89ba455dbcf 15 * notice, this list of conditions and the following disclaimer in the
dflet 0:e89ba455dbcf 16 * documentation and/or other materials provided with the
dflet 0:e89ba455dbcf 17 * distribution.
dflet 0:e89ba455dbcf 18 *
dflet 0:e89ba455dbcf 19 * Neither the name of Texas Instruments Incorporated nor the names of
dflet 0:e89ba455dbcf 20 * its contributors may be used to endorse or promote products derived
dflet 0:e89ba455dbcf 21 * from this software without specific prior written permission.
dflet 0:e89ba455dbcf 22 *
dflet 0:e89ba455dbcf 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
dflet 0:e89ba455dbcf 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
dflet 0:e89ba455dbcf 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
dflet 0:e89ba455dbcf 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
dflet 0:e89ba455dbcf 27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
dflet 0:e89ba455dbcf 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
dflet 0:e89ba455dbcf 29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
dflet 0:e89ba455dbcf 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
dflet 0:e89ba455dbcf 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
dflet 0:e89ba455dbcf 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
dflet 0:e89ba455dbcf 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dflet 0:e89ba455dbcf 34 *
dflet 0:e89ba455dbcf 35 */
dflet 0:e89ba455dbcf 36
dflet 0:e89ba455dbcf 37 #include "cc3100_simplelink.h"
dflet 0:e89ba455dbcf 38 #include "cc3100_spi.h"
dflet 0:e89ba455dbcf 39
dflet 0:e89ba455dbcf 40
dflet 0:e89ba455dbcf 41 namespace mbed_cc3100 {
dflet 0:e89ba455dbcf 42
dflet 0:e89ba455dbcf 43 P_EVENT_HANDLER pIraEventHandler = 0;
dflet 0:e89ba455dbcf 44 uint8_t IntIsMasked;
dflet 0:e89ba455dbcf 45
dflet 0:e89ba455dbcf 46 cc3100_spi::cc3100_spi(PinName cc3100_irq, PinName cc3100_nHIB, PinName cc3100_cs, SPI cc3100_spi, cc3100_driver &driver)
dflet 0:e89ba455dbcf 47 : _wlan_irq(cc3100_irq), _wlan_nHIB(cc3100_nHIB), _wlan_cs(cc3100_cs), _wlan_spi(cc3100_spi), _driver(driver)
dflet 0:e89ba455dbcf 48 {
dflet 0:e89ba455dbcf 49
dflet 7:0687d16b9781 50 _wlan_spi.format(8,0);
dflet 0:e89ba455dbcf 51 _wlan_spi.frequency(16000000);
dflet 0:e89ba455dbcf 52 _wlan_irq.rise(this, &cc3100_spi::IntSpiGPIOHandler); //_SlDrvRxIrqHandler is triggered after IntSpiGPIOHandler
dflet 0:e89ba455dbcf 53 _wlan_nHIB = 0;
dflet 0:e89ba455dbcf 54 _wlan_cs = 1;
dflet 0:e89ba455dbcf 55 wait_ms(200);
dflet 0:e89ba455dbcf 56
dflet 0:e89ba455dbcf 57
dflet 0:e89ba455dbcf 58 }
dflet 0:e89ba455dbcf 59
dflet 0:e89ba455dbcf 60 cc3100_spi::~cc3100_spi()
dflet 0:e89ba455dbcf 61 {
dflet 0:e89ba455dbcf 62
dflet 0:e89ba455dbcf 63 }
dflet 0:e89ba455dbcf 64
dflet 0:e89ba455dbcf 65 int cc3100_spi::spi_Close(Fd_t fd)
dflet 0:e89ba455dbcf 66 {
dflet 0:e89ba455dbcf 67 // Disable WLAN Interrupt ...
dflet 0:e89ba455dbcf 68 cc3100_InterruptDisable();
dflet 0:e89ba455dbcf 69
dflet 0:e89ba455dbcf 70 return NONOS_RET_OK;
dflet 0:e89ba455dbcf 71 }
dflet 0:e89ba455dbcf 72
dflet 0:e89ba455dbcf 73 void cc3100_spi::cc3100_InterruptEnable()
dflet 0:e89ba455dbcf 74 {
dflet 0:e89ba455dbcf 75 __enable_irq();
dflet 0:e89ba455dbcf 76 }
dflet 0:e89ba455dbcf 77
dflet 0:e89ba455dbcf 78 void cc3100_spi::cc3100_InterruptDisable()
dflet 0:e89ba455dbcf 79 {
dflet 0:e89ba455dbcf 80 __disable_irq();
dflet 0:e89ba455dbcf 81 }
dflet 0:e89ba455dbcf 82
dflet 0:e89ba455dbcf 83 void cc3100_spi::CC3100_disable()
dflet 0:e89ba455dbcf 84 {
dflet 0:e89ba455dbcf 85 _wlan_nHIB = 0;
dflet 0:e89ba455dbcf 86 }
dflet 0:e89ba455dbcf 87
dflet 0:e89ba455dbcf 88 void cc3100_spi::CC3100_enable()
dflet 0:e89ba455dbcf 89 {
dflet 0:e89ba455dbcf 90
dflet 0:e89ba455dbcf 91 _wlan_nHIB = 1;
dflet 0:e89ba455dbcf 92 }
dflet 0:e89ba455dbcf 93
dflet 0:e89ba455dbcf 94 Fd_t cc3100_spi::spi_Open(int8_t *ifName, uint32_t flags)
dflet 0:e89ba455dbcf 95 {
dflet 0:e89ba455dbcf 96
dflet 0:e89ba455dbcf 97 // 50 ms delay
dflet 0:e89ba455dbcf 98 wait_ms(50);
dflet 0:e89ba455dbcf 99
dflet 0:e89ba455dbcf 100 // Enable WLAN interrupt
dflet 0:e89ba455dbcf 101 cc3100_InterruptEnable();
dflet 0:e89ba455dbcf 102
dflet 0:e89ba455dbcf 103 return NONOS_RET_OK;
dflet 0:e89ba455dbcf 104 }
dflet 0:e89ba455dbcf 105
dflet 0:e89ba455dbcf 106 int cc3100_spi::spi_Write(Fd_t fd, uint8_t *pBuff, int len)
dflet 0:e89ba455dbcf 107 {
dflet 0:e89ba455dbcf 108
dflet 0:e89ba455dbcf 109 int len_to_return = len;
dflet 0:e89ba455dbcf 110
dflet 0:e89ba455dbcf 111 _wlan_cs = 0;
dflet 0:e89ba455dbcf 112
dflet 0:e89ba455dbcf 113 while(len) {
dflet 0:e89ba455dbcf 114 _wlan_spi.write(*pBuff++);
dflet 0:e89ba455dbcf 115 len--;
dflet 0:e89ba455dbcf 116 }
dflet 0:e89ba455dbcf 117
dflet 0:e89ba455dbcf 118 _wlan_cs = 1;
dflet 0:e89ba455dbcf 119
dflet 0:e89ba455dbcf 120 return len_to_return;
dflet 0:e89ba455dbcf 121 }
dflet 0:e89ba455dbcf 122
dflet 0:e89ba455dbcf 123 int cc3100_spi::spi_Read(Fd_t fd, uint8_t *pBuff, int len)
dflet 0:e89ba455dbcf 124 {
dflet 0:e89ba455dbcf 125 int i = 0;
dflet 0:e89ba455dbcf 126
dflet 0:e89ba455dbcf 127 _wlan_cs = 0;
dflet 0:e89ba455dbcf 128
dflet 0:e89ba455dbcf 129 for (i = 0; i < len; i++) {
dflet 0:e89ba455dbcf 130 pBuff[i] = _wlan_spi.write(0xFF);
dflet 0:e89ba455dbcf 131 }
dflet 0:e89ba455dbcf 132
dflet 0:e89ba455dbcf 133 _wlan_cs = 1;
dflet 0:e89ba455dbcf 134
dflet 0:e89ba455dbcf 135 return len;
dflet 0:e89ba455dbcf 136 }
dflet 0:e89ba455dbcf 137
dflet 0:e89ba455dbcf 138 void cc3100_spi::IntSpiGPIOHandler(void)
dflet 0:e89ba455dbcf 139 {
dflet 0:e89ba455dbcf 140
dflet 0:e89ba455dbcf 141 if(_wlan_irq){
dflet 0:e89ba455dbcf 142 _driver._SlDrvRxIrqHandler(0);
dflet 0:e89ba455dbcf 143 }
dflet 0:e89ba455dbcf 144 }
dflet 0:e89ba455dbcf 145
dflet 0:e89ba455dbcf 146 /*!
dflet 0:e89ba455dbcf 147 \brief register an interrupt handler for the host IRQ
dflet 0:e89ba455dbcf 148
dflet 0:e89ba455dbcf 149 \param[in] InterruptHdl - pointer to interrupt handler function
dflet 0:e89ba455dbcf 150
dflet 0:e89ba455dbcf 151 \param[in] pValue - pointer to a memory strcuture that is
dflet 0:e89ba455dbcf 152 passed to the interrupt handler.
dflet 0:e89ba455dbcf 153
dflet 0:e89ba455dbcf 154 \return upon successful registration, the function shall return 0.
dflet 0:e89ba455dbcf 155 Otherwise, -1 shall be returned
dflet 0:e89ba455dbcf 156
dflet 0:e89ba455dbcf 157 \sa
dflet 0:e89ba455dbcf 158 \note If there is already registered interrupt handler, the
dflet 0:e89ba455dbcf 159 function should overwrite the old handler with the new one
dflet 0:e89ba455dbcf 160 \warning
dflet 0:e89ba455dbcf 161 */
dflet 0:e89ba455dbcf 162 int cc3100_spi::registerInterruptHandler(P_EVENT_HANDLER InterruptHdl , void* pValue)
dflet 0:e89ba455dbcf 163 {
dflet 0:e89ba455dbcf 164
dflet 0:e89ba455dbcf 165 pIraEventHandler = InterruptHdl;
dflet 0:e89ba455dbcf 166 return 0;
dflet 0:e89ba455dbcf 167 }
dflet 0:e89ba455dbcf 168
dflet 0:e89ba455dbcf 169 /*!
dflet 0:e89ba455dbcf 170 \brief Unmasks the Host IRQ
dflet 0:e89ba455dbcf 171
dflet 0:e89ba455dbcf 172 \param[in] none
dflet 0:e89ba455dbcf 173
dflet 0:e89ba455dbcf 174 \return none
dflet 0:e89ba455dbcf 175
dflet 0:e89ba455dbcf 176 \warning
dflet 0:e89ba455dbcf 177 */
dflet 0:e89ba455dbcf 178 void cc3100_spi::UnMaskIntHdlr()
dflet 0:e89ba455dbcf 179 {
dflet 0:e89ba455dbcf 180 IntIsMasked = FALSE;
dflet 0:e89ba455dbcf 181 }
dflet 0:e89ba455dbcf 182
dflet 0:e89ba455dbcf 183 /*!
dflet 0:e89ba455dbcf 184 \brief Masks the Host IRQ
dflet 0:e89ba455dbcf 185
dflet 0:e89ba455dbcf 186 \param[in] none
dflet 0:e89ba455dbcf 187
dflet 0:e89ba455dbcf 188 \return none
dflet 0:e89ba455dbcf 189
dflet 0:e89ba455dbcf 190 \warning
dflet 0:e89ba455dbcf 191 */
dflet 0:e89ba455dbcf 192 void cc3100_spi::MaskIntHdlr()
dflet 0:e89ba455dbcf 193 {
dflet 0:e89ba455dbcf 194 IntIsMasked = TRUE;
dflet 0:e89ba455dbcf 195 }
dflet 0:e89ba455dbcf 196
dflet 0:e89ba455dbcf 197 }//namespace mbed_cc3100
dflet 0:e89ba455dbcf 198
dflet 0:e89ba455dbcf 199
dflet 0:e89ba455dbcf 200
dflet 0:e89ba455dbcf 201
dflet 0:e89ba455dbcf 202