static ssize_t crt_register_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
if (register_password == 0) {
return sprintf(buf, "enter register address access password\n");
}else if ((register_addr < 0xb8000000)) {
return sprintf(buf, "wrong register address 0x%08X\n", register_addr);
}
return sprintf(buf, "reg addr = 0x%08X , val = 0x%08X\n", register_addr, rtd_inl(register_addr));
}
/*------------------------------------------------------------------
* Func : mars_scd_open
*
* Desc : open a mars scd device
*
* Parm : id : channel id
*
* Retn : handle of mars scd
*------------------------------------------------------------------*/
mars_scd* mars_scd_open(unsigned char id)
{
mars_scd* p_this;
if (id >= 2) return NULL;
#if 1
rtd_outl(0xb8000364, rtd_inl(0xb8000364) | 0x00003000); // Set Pin MUX
#endif
p_this = (mars_scd*) kmalloc(sizeof(mars_scd), GFP_KERNEL);
if (p_this)
{
memset(p_this, 0, sizeof(mars_scd));
p_this->id = id;
p_this->fsm = IFD_FSM_UNKNOWN;
p_this->atr.length = 0;
init_completion(&p_this->card_detect_completion);
// configurations ---
p_this->clock_div = 1;
p_this->pre_clock_div = 8;
p_this->baud_div1 = 12; // default etu = 372 = 31 * 12
p_this->baud_div2 = 31;
p_this->parity = 1;
// operations ---
p_this->enable = mars_scd_enable;
p_this->set_clock = mars_scd_set_clock;
p_this->get_clock = mars_scd_get_clock;
p_this->set_etu = mars_scd_set_etu;
p_this->get_etu = mars_scd_get_etu;
p_this->set_parity = mars_scd_set_parity;
p_this->get_parity = mars_scd_get_parity;
p_this->activate = mars_scd_activate;
p_this->deactivate = mars_scd_deactivate;
p_this->reset = mars_scd_reset;
p_this->get_atr = mars_scd_get_atr;
p_this->xmit = mars_scd_xmit;
p_this->read = mars_scd_read;
p_this->get_card_status = mars_scd_card_detect;
p_this->poll_card_status = mars_scd_poll_card_status;
// Set All Register to the initial value
SET_SCFP (id, SC_CLK_EN(1) |
SC_CLKDIV((p_this->clock_div-1))|
SC_BAUDDIV2(0) | // fixed to 31
SC_BAUDDIV1((p_this->baud_div1-1))|
SC_PRE_CLKDIV((p_this->pre_clock_div-1)));
SET_SCCR (id, SC_FIFO_RST(1) |
SC_SCEN(1) |
SC_AUTO_ATR(1) |
SC_CONV(0) |
SC_PS(0));
SET_SCPCR (id, SC_TXGRDT(0) |
SC_CWI(0) |
SC_BWI(0) |
SC_WWI(0) |
SC_BGT(0x16) |
SC_EDC_EN(0) |
SC_CRC(0) |
SC_PROTOCOL_T(0)|
SC_T0RTY(0) |
SC_T0RTY_CNT(0) );
SET_SCIRER(id, 0);
SET_SCIRSR(id, 0xFFFFFFFF);
// Set Interrupt or IRQ
#ifdef ISR_POLLING
init_timer(&p_this->timer);
p_this->timer.data = (unsigned long)p_this;
p_this->timer.function = mars_scd_timer;
p_this->timer.expires = jiffies + ISR_POLLING_INTERVAL;
add_timer(&p_this->timer); // register timer
#else
SC_INFO("Request IRQ #%d\n", MISC_IRQ);
if (request_irq(MISC_IRQ, mars_scd_isr, SA_INTERRUPT | SA_SHIRQ, "MARS SCD", p_this) < 0)
{
SC_WARNING("scd : open mars scd failed, unable to request irq#%d\n", MISC_IRQ);
return -1;
}
#endif
mars_scd_set_state(p_this, IFD_FSM_DISABLE);
}
return p_this;
}
