static int
step1 (pixma_t * s)
{
int error, tmo;
error = activate (s, 0);
if (error < 0)
return error;
error = query_status (s);
if (error < 0)
return error;
if (s->param->source == PIXMA_SOURCE_ADF && !has_paper (s))
return PIXMA_ENO_PAPER;
error = activate_cs (s, 0);
/*SIM*/ if (error < 0)
return error;
error = activate_cs (s, 0x20);
if (error < 0)
return error;
tmo = 60;
error = calibrate_cs (s);
while (error == PIXMA_EBUSY && --tmo >= 0)
{
if (s->cancel)
return PIXMA_ECANCELED;
PDBG (pixma_dbg
(2, "Scanner is busy. Timed out in %d sec.\n", tmo + 1));
pixma_sleep (1000000);
error = calibrate_cs (s);
}
return error;
}
void rf_reg_write(rf_dev *dev, uint8_t reg, uint8_t val)
{
uint8_t tmp = reg | 0xC0;
activate_cs();
dev->state = spi_xchng_byte(dev, tmp);// & 0x1F;
tmp = spi_xchng_byte(dev, val); /* dummy read */
deactivate_cs();
}
void rf_frame_write(rf_dev* dev, uint8_t* frame, uint8_t len)
{
uint8_t tmp = 0x60;
activate_cs();
dev->state = spi_xchng_byte(dev, tmp);// & 0x1F;
tmp = spi_xchng_byte(dev, len); /* dummy read */
while(len--)
tmp = spi_xchng_byte(dev, *frame++); /* dummy read */
deactivate_cs();
}
uint8_t rf_reg_read(rf_dev *dev, uint8_t reg)
{
uint8_t tmp = reg | 0x80;
activate_cs();
dev->state = spi_xchng_byte(dev, tmp);// & 0x1F;
tmp = spi_xchng_byte(dev, 0x00); /* dummy write */
deactivate_cs();
return tmp;
}
void rf_frame_read(rf_dev* dev, uint8_t* buff)
{
uint8_t tmp = 0x20;
activate_cs();
dev->state = spi_xchng_byte(dev, tmp);// & 0x1F;
tmp = spi_xchng_byte(dev, 0x00); /* PHR (PSDU LEN) in tmp */
*buff++ = tmp; /* put PHR into buffer */
while(tmp--)
*buff++ = spi_xchng_byte(dev, 0x00); /* data read */
*buff++ = spi_xchng_byte(dev, 0x00); /* LQI read */
*buff++ = spi_xchng_byte(dev, 0x00); /* ED read */
*buff = spi_xchng_byte(dev, 0x00); /* RX_STATUS read */
deactivate_cs();
}
