19 #define SIOX_STATUS_WDG			0x01
26 #define SIOX_STATUS_COUNTER		0x0e
29  * Each Siox-Device has a 4 bit type number that is neither 0 nor 15. This is
34 #define SIOX_STATUS_TYPE		0xf0
56 	 * status word as 0xa before (counter = 0b101), it is expected to get  in siox_status_clean()
57 	 * back the counter bits as 0b010.  in siox_status_clean()
65 	return status_read ^ (~status_written & 0xe);  in siox_status_clean()
71 	return (status_clean & SIOX_STATUS_COUNTER) != 0;  in siox_device_counter_error()
80 	 * against this value otherwise just rule out the invalid values 0b0000  in siox_device_type_error()
81 	 * and 0b1111.  in siox_device_type_error()
88 		case 0:  in siox_device_type_error()
89 		case 0xf:  in siox_device_type_error()
99 	return (status_clean & SIOX_STATUS_WDG) == 0;  in siox_device_wdg_error()
132 	unsigned int devno = 0;  in siox_poll()
133 	int unsync_error = 0;  in siox_poll()
140 	 * The counter bits hold values from [0, 6]. 7 would be possible  in siox_poll()
144 	 * with a stuck-at-0 error. But for the same reason (with s/0/1/) 0  in siox_poll()
147 	if (++smaster->status > 0x0d)  in siox_poll()
148 		smaster->status = 0;  in siox_poll()
150 	memset(smaster->buf, 0, smaster->setbuf_len);  in siox_poll()
152 	/* prepare data pushed out to devices in buf[0..setbuf_len) */  in siox_poll()
189 	unsync_error = 0;  in siox_poll()
192 	devno = 0;  in siox_poll()
281 	signed long timeout = 0;  in siox_poll_thread()
288 			return 0;  in siox_poll_thread()
310 		if (timeout > 0)  in siox_poll_thread()
315 		if (timeout > 0)  in siox_poll_thread()
336 		return 0;  in __siox_start()
360 		smaster->active = 0;  in __siox_stop()
370 	return 0;  in __siox_stop()
509 		return 0;  in siox_match()
570 	ret = kstrtoint(buf, 0, &active);  in active_store()
571 	if (ret < 0)  in active_store()
579 	if (ret < 0)  in active_store()
598 	size_t inbytes = 0, outbytes = 0;  in device_add_store()
599 	u8 statustype = 0;  in device_add_store()
648 	ret = kstrtou64(buf, 0, &val);  in poll_interval_ns_store()
649 	if (ret < 0)  in poll_interval_ns_store()
756 		smaster->active = 0;  in siox_master_register()
968 	return 0;  in siox_init()