tle8888.cpp File Reference

Enumerations
enum	tle8888_drv_state { TLE8888_DISABLED = 0 , TLE8888_WAIT_INIT , TLE8888_READY , TLE8888_FAILED }

Functions
void	tle8888PostState ()
static brain_pin_diag_e	tle8888_2b_to_diag_no_temp (unsigned int bits)
static brain_pin_diag_e	tle8888_2b_to_diag_with_temp (unsigned int bits)
static	THD_FUNCTION (tle8888_driver_thread, p)
int	tle8888_add (brain_pin_e base, unsigned int index, const tle8888_config *cfg)
	TLE8888 driver add.
void	tle8888_req_init ()
void	tle8888_dump_regs ()

Variables
static Timer	diagResponse
const uint8_t	tle8888_fwd_responses [16][4]
static Tle8888	chips [BOARD_TLE8888_COUNT]
static const char *	tle8888_pin_names [TLE8888_SIGNALS]

Enumeration Type Documentation

tle8888_drv_state

enum tle8888_drv_state

Enumerator
TLE8888_DISABLED
TLE8888_WAIT_INIT
TLE8888_READY
TLE8888_FAILED

Definition at line 54 of file tle8888.cpp.

             {
    TLE8888_DISABLED = 0,
    TLE8888_WAIT_INIT,
    TLE8888_READY,
    TLE8888_FAILED
} tle8888_drv_state;

Function Documentation

THD_FUNCTION()

static THD_FUNCTION ( tle8888_driver_thread  , p    )

static

Definition at line 815 of file tle8888.cpp.

                                              {
    Tle8888 *chip = reinterpret_cast<Tle8888*>(p);
    sysinterval_t poll_interval = 0;
 
    chRegSetThreadName(DRIVER_NAME);
 
    while (1) {
        int ret;
        msg_t msg = chSemWaitTimeout(&chip->wake, poll_interval);
 
        /* should we care about msg == MSG_TIMEOUT? */
        (void)msg;
 
        /* default polling interval */
        poll_interval = TIME_MS2I(DIAG_PERIOD_MS);
 
        if ((chip->cfg == NULL) ||
            (chip->drv_state == TLE8888_DISABLED) ||
            (chip->drv_state == TLE8888_FAILED))
            continue;
 
        bool wd_happy = chip->wd_happy;
 
        /* update outputs only if WD is happy */
        if ((wd_happy) || (1)) {
            ret = chip->update_output();
            if (ret) {
                /* set state to TLE8888_FAILED? */
            }
        }
 
        ret = chip->wd_feed();
        if (ret < 0) {
            /* WD is not happy */
            continue;
        }
        /* happiness state has changed! */
        if ((chip->wd_happy != wd_happy) && (chip->wd_happy)) {
            chip->need_init = true;
        }
 
        if (chip->need_init) {
            /* clear first, as flag can be raised again during init */
            chip->need_init = false;
            /* re-init chip! */
            chip->chip_init();
            /* sync pins state */
            chip->update_output();
        }
 
        if (chip->diag_ts <= chVTGetSystemTimeX()) {
            /* this is expensive call, will do a lot of spi transfers... */
            ret = chip->update_status_and_diag();
            if (ret) {
                /* set state to TLE8888_FAILED or force reinit? */
            } else {
                diagResponse.reset();
            }
            /* TODO:
             * Procedure to switch on after failure condition occurred:
             *  - Read out of diagnosis bits
             *  - Second read out to verify that the failure conditions are not
             *    remaining
             *  - Set of the dedicated output enable bit of the affected channel
             *    if the diagnosis bit is not active anymore
             *  - Switch on of the channel */
 
            chip->diag_ts = chTimeAddX(chVTGetSystemTimeX(), TIME_MS2I(DIAG_PERIOD_MS));
        }
 
        poll_interval = chip->calc_sleep_interval();
    }
}

tle8888_2b_to_diag_no_temp()

static brain_pin_diag_e tle8888_2b_to_diag_no_temp ( unsigned int  bits )

static

Definition at line 596 of file tle8888.cpp.

{
    if (bits == 0x01)
        return PIN_SHORT_TO_BAT;
    if (bits == 0x02)
        return PIN_OPEN;
    if (bits == 0x03)
        return PIN_SHORT_TO_GND;
    return PIN_OK;
}

Referenced by tle8888_2b_to_diag_with_temp().

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tle8888_2b_to_diag_with_temp()

static brain_pin_diag_e tle8888_2b_to_diag_with_temp ( unsigned int  bits )

static

Definition at line 607 of file tle8888.cpp.

{
    int diag = tle8888_2b_to_diag_no_temp(bits);
 
    if (diag == PIN_SHORT_TO_BAT)
        diag |= PIN_DRIVER_OVERTEMP;
 
    return static_cast<brain_pin_diag_e>(diag);
}

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tle8888_add()

int tle8888_add	(	brain_pin_e	base,
		unsigned int	index,
		const tle8888_config *	cfg
	)

TLE8888 driver add.

Checks for valid config

Returns

return gpio chip base

Definition at line 1228 of file tle8888.cpp.

                                                                                 {
 
    efiAssert(ObdCode::OBD_PCM_Processor_Fault, cfg != NULL, "8888CFG", 0)
 
    /* no config or no such chip */
    if ((!cfg) || (!cfg->spi_bus) || (index >= BOARD_TLE8888_COUNT))
        return -1;
 
    /* check for valid chip select.
     * TODO: remove this check? CS can be driven by SPI */
    if (cfg->spi_config.ssport == NULL)
        return -1;
 
    Tle8888* chip = &chips[index];
 
    /* already initted? */
    if (chip->cfg)
        return -1;
 
    chip->cfg = cfg;
    chip->o_state = 0;
    chip->o_direct_mask = 0;
    chip->o_data_cached = 0;
    chip->drv_state = TLE8888_WAIT_INIT;
 
    /* register */
    int ret = gpiochip_register(base, DRIVER_NAME, *chip, TLE8888_OUTPUTS);
    if (ret < 0)
        return ret;
 
    /* set default pin names, board init code can rewrite */
    gpiochips_setPinNames(base, tle8888_pin_names);
 
    return ret;
}

Referenced by initSmartGpio().

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tle8888_dump_regs()

void tle8888_dump_regs

(

)

Definition at line 1279 of file tle8888.cpp.

                         {
    auto& chip = chips[0];
 
    // since responses are always in the NEXT transmission we will have this one first
    chip.read_reg(0, NULL);
 
    efiPrintf("register: data");
    for (int request = 0; request <= 0x7e + 1; request++) {
        uint16_t tmp;
        chip.read_reg(request < (0x7e + 1) ? request : 0x7e, &tmp);
        uint8_t reg = getRegisterFromResponse(tmp);
        uint8_t data = getDataFromResponse(tmp);
 
        efiPrintf("%02x: %02x", reg, data);
    }
}

Referenced by initPinRepository().

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tle8888_req_init()

void tle8888_req_init

(

)

Definition at line 1272 of file tle8888.cpp.

                        {
    auto& tle = chips[0];
 
    tle.need_init = true;
    tle.init_req_cnt++;
}

Referenced by handleCommandX14(), initPinRepository(), and tle8888startup().

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tle8888PostState()

void tle8888PostState

(

)

Definition at line 279 of file tle8888.cpp.

                        {
    Tle8888 *chip = &chips[0];
 
    engine->outputChannels.debugIntField1 = chip->wwd_err_cnt;
    engine->outputChannels.debugIntField2 = chip->fwd_err_cnt;
    engine->outputChannels.debugIntField3 = chip->tot_err_cnt;
    //engine->outputChannels.debugIntField1 = chip->spi_cnt;
    //engine->outputChannels.debugIntField2 = chip->tx;
    //engine->outputChannels.debugIntField3 = chip->rx;
    engine->outputChannels.debugIntField5 = chip->init_cnt;
 
    engine->outputChannels.debugFloatField3 = chip->OpStat[1];
    engine->outputChannels.debugFloatField4 = chip->por_cnt * 1000000 + chip->init_req_cnt * 10000;
    engine->outputChannels.debugFloatField5 = 0;
    engine->outputChannels.debugFloatField6 = 0;
}

Variable Documentation

chips

Tle8888 chips[BOARD_TLE8888_COUNT]

static

Definition at line 264 of file tle8888.cpp.

Referenced by tle8888_add(), tle8888_dump_regs(), tle8888_req_init(), and tle8888PostState().

diagResponse

Timer diagResponse

static

Definition at line 42 of file tle8888.cpp.

Referenced by THD_FUNCTION(), and THD_FUNCTION().

tle8888_fwd_responses

const uint8_t tle8888_fwd_responses[16][4]

Initial value:

= {
    
    {0xFF, 0x0F, 0xF0, 0x00},
    {0xB0, 0x40, 0xBF, 0x4F},
    {0xE9, 0x19, 0xE6, 0x16},
    {0xA6, 0x56, 0xA9, 0x59},
    {0x75, 0x85, 0x7A, 0x8A},
    {0x3A, 0xCA, 0x35, 0xC5},
    {0x63, 0x93, 0x6C, 0x9C},
    {0x2C, 0xDC, 0x23, 0xD3},
    {0xD2, 0x22, 0xDD, 0x2D},
    {0x9D, 0x6D, 0x92, 0x62},
    {0xC4, 0x34, 0xCB, 0x3B},
    {0x8B, 0x7B, 0x84, 0x74},
    {0x58, 0xA8, 0x57, 0xA7},
    {0x17, 0xE7, 0x18, 0xE8},
    {0x4E, 0xBE, 0x41, 0xB1},
    {0x01, 0xF1, 0x0E, 0xFE}
}

Definition at line 138 of file tle8888.cpp.

                                             {
    /* Reverse order:
     * RESP3,RESP2,RESP1,RESP0 */
    {0xFF, 0x0F, 0xF0, 0x00},
    {0xB0, 0x40, 0xBF, 0x4F},
    {0xE9, 0x19, 0xE6, 0x16},
    {0xA6, 0x56, 0xA9, 0x59},
    {0x75, 0x85, 0x7A, 0x8A},
    {0x3A, 0xCA, 0x35, 0xC5},
    {0x63, 0x93, 0x6C, 0x9C},
    {0x2C, 0xDC, 0x23, 0xD3},
    {0xD2, 0x22, 0xDD, 0x2D},
    {0x9D, 0x6D, 0x92, 0x62},
    {0xC4, 0x34, 0xCB, 0x3B},
    {0x8B, 0x7B, 0x84, 0x74},
    {0x58, 0xA8, 0x57, 0xA7},
    {0x17, 0xE7, 0x18, 0xE8},
    {0x4E, 0xBE, 0x41, 0xB1},
    {0x01, 0xF1, 0x0E, 0xFE}
};

tle8888_pin_names

const char* tle8888_pin_names[TLE8888_SIGNALS]

static

Initial value:

= {
    "TLE8888.INJ1",     "TLE8888.INJ2",     "TLE8888.INJ3",     "TLE8888.INJ4",
    "TLE8888.OUT5",     "TLE8888.OUT6",     "TLE8888.OUT7",     "TLE8888.OUT8",
    "TLE8888.OUT9",     "TLE8888.OUT10",    "TLE8888.OUT11",    "TLE8888.OUT12",
    "TLE8888.OUT13",    "TLE8888.OUT14",    "TLE8888.OUT15",    "TLE8888.OUT16",
    "TLE8888.OUT17",    "TLE8888.OUT18",    "TLE8888.OUT19",    "TLE8888.OUT20",
    "TLE8888.OUT21",    "TLE8888.OUT22",    "TLE8888.OUT23",    "TLE8888.OUT24",
    "TLE8888.IGN1",     "TLE8888.IGN2",     "TLE8888.IGN3",     "TLE8888.IGN4",
    "TLE8888.MR",       "TLE8888.KEY",      "TLE8888.WAKE"
}

Definition at line 266 of file tle8888.cpp.

                                                        {
    "TLE8888.INJ1",     "TLE8888.INJ2",     "TLE8888.INJ3",     "TLE8888.INJ4",
    "TLE8888.OUT5",     "TLE8888.OUT6",     "TLE8888.OUT7",     "TLE8888.OUT8",
    "TLE8888.OUT9",     "TLE8888.OUT10",    "TLE8888.OUT11",    "TLE8888.OUT12",
    "TLE8888.OUT13",    "TLE8888.OUT14",    "TLE8888.OUT15",    "TLE8888.OUT16",
    "TLE8888.OUT17",    "TLE8888.OUT18",    "TLE8888.OUT19",    "TLE8888.OUT20",
    "TLE8888.OUT21",    "TLE8888.OUT22",    "TLE8888.OUT23",    "TLE8888.OUT24",
    "TLE8888.IGN1",     "TLE8888.IGN2",     "TLE8888.IGN3",     "TLE8888.IGN4",
    "TLE8888.MR",       "TLE8888.KEY",      "TLE8888.WAKE"
};

Referenced by tle8888_add().

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