wifi_bsp.cpp File Reference

Functions
spi_device_e	getWifiSpiDevice ()
Gpio	getWifiCsPin ()
Gpio	getWifiResetPin ()
Gpio	getWifiIsrPin ()
void	nm_bsp_sleep (uint32 u32TimeMsec)
static void	isrAdapter (void *, efitick_t)
void	nm_bsp_interrupt_ctrl (uint8 u8Enable)
void	nm_bsp_register_isr (tpfNmBspIsr pfIsr)
sint8	nm_bus_init (void *)
sint8	nm_bus_deinit (void)
sint8	nm_bus_speed (uint8)
void	resetSpiDevice (SPIDriver *spi)
sint8	nm_spi_rw (uint8 *pu8Mosi, uint8 *pu8Miso, uint16 u16Sz)

Variables
static tpfNmBspIsr	gpfIsr = nullptr
static bool	isrEnabled = false
static SPIDriver *	wifiSpi = nullptr
tstrNmBusCapabilities	egstrNmBusCapabilities = { .u16MaxTrxSz = 4096 }
SPIConfig	wifi_spicfg
static OutputPin	wifiCs
static OutputPin	wifiReset

Function Documentation

getWifiCsPin()

Gpio getWifiCsPin

(

)

Definition at line 21 of file board_configuration.cpp.

                    {
    return Gpio::E4;
}

Referenced by nm_bus_init().

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getWifiIsrPin()

Gpio getWifiIsrPin

(

)

Definition at line 29 of file board_configuration.cpp.

                     {
    return Gpio::E3;
}

Referenced by nm_bsp_interrupt_ctrl().

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getWifiResetPin()

Gpio getWifiResetPin

(

)

Definition at line 25 of file board_configuration.cpp.

                       {
    return Gpio::E1;
}

Referenced by nm_bus_init().

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getWifiSpiDevice()

spi_device_e getWifiSpiDevice

(

)

Definition at line 17 of file board_configuration.cpp.

                                {
    return SPI_DEVICE_4;
}

Referenced by nm_bus_init().

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isrAdapter()

static void isrAdapter ( void *  , efitick_t    )

static

Definition at line 24 of file wifi_bsp.cpp.

                                         {
    if (gpfIsr) {
        gpfIsr();
    }
}

Referenced by nm_bsp_interrupt_ctrl().

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nm_bsp_interrupt_ctrl()

void nm_bsp_interrupt_ctrl

(

uint8

u8Enable

)

Definition at line 32 of file wifi_bsp.cpp.

                                           {
    if (u8Enable && !isrEnabled) {
        efiExtiEnablePin("WiFi ISR", getWifiIsrPin(), PAL_EVENT_MODE_FALLING_EDGE, isrAdapter, nullptr);
        isrEnabled = true;
    } else if (!u8Enable && isrEnabled) {
        efiExtiDisablePin(getWifiIsrPin());
        isrEnabled = false;
    }
}

Referenced by nm_bsp_register_isr().

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nm_bsp_register_isr()

void nm_bsp_register_isr

(

tpfNmBspIsr

pfIsr

)

Definition at line 42 of file wifi_bsp.cpp.

                                            {
    gpfIsr = pfIsr;
 
    nm_bsp_interrupt_ctrl(1);
}

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nm_bsp_sleep()

void nm_bsp_sleep

(

uint32

u32TimeMsec

)

Definition at line 18 of file wifi_bsp.cpp.

                                      {
    chThdSleepMilliseconds(u32TimeMsec);
}

nm_bus_deinit()

sint8 nm_bus_deinit

(

void

)

Definition at line 113 of file wifi_bsp.cpp.

                          {
    spiReleaseBus(wifiSpi);
    spiStop(wifiSpi);
 
    return M2M_SUCCESS;
}

nm_bus_init()

sint8 nm_bus_init

(

void *

)

Definition at line 84 of file wifi_bsp.cpp.

                         {
    auto spi = getWifiSpiDevice();
    if (spi == SPI_NONE) {
        return M2M_ERR_BUS_FAIL;
    }
 
    // Set up chip select, reset
    wifiCs.initPin("WiFi CS", getWifiCsPin());
    wifiCs.setValue(1);
    wifiReset.initPin("WiFi RST", getWifiResetPin());
 
    // Reset the chip
    wifiReset.setValue(0);
    chThdSleepMilliseconds(10);
    wifiReset.setValue(1);
    chThdSleepMilliseconds(10);
 
    // Set up SPI
    wifiSpi = getSpiDevice(getWifiSpiDevice());
    wifi_spicfg.ssport = wifiCs.m_port;
    wifi_spicfg.sspad = wifiCs.m_pin;
    spiStart(wifiSpi, &wifi_spicfg);
 
    // Take exclusive access of the bus for WiFi use, don't release it until the bus is de-init.
    spiAcquireBus(wifiSpi);
 
    return M2M_SUCCESS;
}

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nm_bus_speed()

sint8 nm_bus_speed

(

uint8

)

Definition at line 120 of file wifi_bsp.cpp.

                            {
    // Do we even need to do anything here?
    return M2M_SUCCESS;
}

nm_spi_rw()

sint8 nm_spi_rw	(	uint8 *	pu8Mosi,
		uint8 *	pu8Miso,
		uint16	u16Sz
	)

Definition at line 127 of file wifi_bsp.cpp.

                                                              {
    spiSelectI(wifiSpi);
 
    if (u16Sz < 16) {
        for (size_t i = 0; i < u16Sz; i++) {
            uint8 tx = pu8Mosi ? pu8Mosi[i] : 0;
 
            uint8 rx = spiPolledExchange(wifiSpi, tx);
 
            if (pu8Miso) {
                pu8Miso[i] = rx;
            }
        }
    } else {
        // #if CORTEX_MODEL == 7
        // if (pu8Mosi) {
        //  SCB_CleanDCache_by_Addr((uint32_t*)pu8Mosi, u16Sz);
        // }
        // #endif
 
        // #ifdef STM32H7XX
        // /* workaround for silicon errata */
        // /* see https://github.com/rusefi/rusefi/issues/2395 */
        // resetSpiDevice(wifiSpi);
        // spiStart(wifiSpi, &wifi_spicfg);
        // #endif
 
        if (pu8Mosi && pu8Miso) {
            spiExchange(wifiSpi, u16Sz, pu8Mosi, pu8Miso);
        } else if (pu8Mosi) {
            spiSend(wifiSpi, u16Sz, pu8Mosi);
        } else if (pu8Miso) {
            spiReceive(wifiSpi, u16Sz, pu8Miso);
        } else {
            // Neither MISO nor MOSI???
            osalSysHalt("wifi neither mosi nor miso");
        }
 
        // #if CORTEX_MODEL == 7
        // if (pu8Miso) {
        //  SCB_InvalidateDCache_by_Addr((uint32_t*)pu8Miso, u16Sz);
        // }
        // #endif
    }
 
    spiUnselectI(wifiSpi);
 
    return M2M_SUCCESS;
}

resetSpiDevice()

void resetSpiDevice

(

SPIDriver *

spi

)

Variable Documentation

egstrNmBusCapabilities

tstrNmBusCapabilities egstrNmBusCapabilities = { .u16MaxTrxSz = 4096 }

Definition at line 50 of file wifi_bsp.cpp.

{ .u16MaxTrxSz = 4096 };

gpfIsr

tpfNmBspIsr gpfIsr = nullptr

static

Definition at line 22 of file wifi_bsp.cpp.

Referenced by isrAdapter(), and nm_bsp_register_isr().

isrEnabled

bool isrEnabled = false

static

Definition at line 30 of file wifi_bsp.cpp.

Referenced by nm_bsp_interrupt_ctrl().

wifi_spicfg

static SPIConfig wifi_spicfg

Initial value:

= {
        .circular = false,
        .end_cb = NULL,
        .ssport = NULL,
        .sspad = 0,
        .cfg1 = 7 
            | 2 << 28 ,
        .cfg2 = 0
}

Definition at line 55 of file wifi_bsp.cpp.

                        {
        .circular = false,
        .end_cb = NULL,
        .ssport = NULL,
        .sspad = 0,
        .cfg1 = 7 // 8 bits per byte
            | 2 << 28 /* MBR = 2, divider = 8 */,
        .cfg2 = 0
};

Referenced by nm_bus_init().

wifiCs

OutputPin wifiCs

static

Definition at line 81 of file wifi_bsp.cpp.

Referenced by nm_bus_init().

wifiReset

OutputPin wifiReset

static

Definition at line 82 of file wifi_bsp.cpp.

Referenced by nm_bus_init().

wifiSpi

SPIDriver* wifiSpi = nullptr

static

Definition at line 48 of file wifi_bsp.cpp.

Referenced by nm_bus_deinit(), nm_bus_init(), and nm_spi_rw().

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