lib_ocx.c

#include "edtinc.h"

#include "edt_ocx.h"

/***************************************
* Some utility functions
* These probably ought to go in a general
* library file
**************************************/


int
edt_reg_set_bitmask(EdtDev *edt_p, u_int reg, u_int mask, int state)

{

    return  (state)? edt_reg_or(edt_p, reg, mask) : edt_reg_and(edt_p, reg, ~mask);
}


int
edt_wait_register_bits_low(EdtDev *edt_p, u_int reg, u_int mask, int timeout)

{
    int t = 0;
    int s;

    while ((t < timeout || !timeout) && (edt_reg_read(edt_p,reg) & mask))
    {

        s = timeout - t;
        if (s > 10)
            s = 10;

        edt_msleep(s);
        t += s;
    }

    return (t >= timeout && (timeout != 0));
}

int
edt_wait_register_bits_low_timer(EdtDev *edt_p, u_int reg, u_int mask, int timeout)

{
    int t = 0;
    int s;

    while ((t < timeout || !timeout) && (edt_reg_read(edt_p,reg) & mask))
    {

        s = timeout - t;
        if (s > 10)
            s = 10;

        edt_msleep(s);
        t += s;
    }

    return t;
}

int
edt_wait_register_bits_high(EdtDev *edt_p, u_int reg, u_int mask, int timeout)

{
    int t = 0;
    int s;

    while ((t < timeout || !timeout) && 
        !((edt_reg_read(edt_p,reg) & mask)==mask))
    {

        s = timeout - t;
        if (s > 10)
            s = 10;

        edt_msleep(s);
        t += s;
    }

    /* fixed bug where t == timeout does not return error -mcm 11/25/08 */
    return (t >= timeout && (timeout != 0));

}

int
edt_wait_register_bits_high_timer(EdtDev *edt_p, u_int reg, u_int mask, int timeout)

{
    int t = 0;
    int s;

    while ((t < timeout || !timeout) && 
        !((edt_reg_read(edt_p,reg) & mask)==mask))
    {

        s = timeout - t;
        if (s > 10)
            s = 10;

        edt_msleep(s);
        t += s;
    }

    /* fixed bug where t == timeout does not return error -mcm 11/25/08 */
    return t;

}

void
edt_ocx_clear_state_flag(EdtOCConfig *cfg, const u_int flag)

{
    cfg->state &= ~flag;
}

void
edt_ocx_set_state_flag(EdtOCConfig *cfg, const u_int flag)

{
    cfg->state |= ~flag;
}



void
edt_ocx_cfg_init(EdtOCConfig *cfg,
                 u_int flags,
                 int timeout,
                 EdtLineRate rate)

{
    memset(cfg, 0, sizeof(*cfg));

    cfg->flags = flags;
    cfg->line_rate = rate;
    cfg->frame_timeout = timeout;
    cfg->timeout = timeout;
    cfg->signal_timeout = timeout;
    cfg->receive_dcm_timeout = timeout;
    cfg->transceiver_timeout = timeout;


}

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