173         outb(0x81, LCR(dev->base_addr));        /* DLAB = 1 */  in ser12_set_divisor()
174         outb(divisor, DLL(dev->base_addr));  in ser12_set_divisor()
175         outb(divisor >> 8, DLM(dev->base_addr));  in ser12_set_divisor()
176         outb(0x01, LCR(dev->base_addr));        /* word length = 6 */  in ser12_set_divisor()
182         outb(0x00, THR(dev->base_addr));  in ser12_set_divisor()
258 	if ((iir = inb(IIR(dev->base_addr))) & 1) 	  in ser12_interrupt()
262 	msr = inb(MSR(dev->base_addr));  in ser12_interrupt()
269 			inb(LSR(dev->base_addr));  in ser12_interrupt()
273 			inb(RBR(dev->base_addr));  in ser12_interrupt()
282 			outb(0x00, THR(dev->base_addr));  in ser12_interrupt()
290 				outb(0x0e | (!!bc->modem.ser12.tx_bit), MCR(dev->base_addr));  in ser12_interrupt()
292 				outb(0x0d, MCR(dev->base_addr));       /* transmitter off */  in ser12_interrupt()
296 			msr = inb(MSR(dev->base_addr));  in ser12_interrupt()
302 		iir = inb(IIR(dev->base_addr));  in ser12_interrupt()
381 	if (!dev->base_addr || dev->base_addr > 0xffff-SER12_EXTENT ||  in ser12_open()
393 	if (!request_region(dev->base_addr, SER12_EXTENT, "baycom_ser_fdx")) {  in ser12_open()
395 		       dev->base_addr);  in ser12_open()
402 	if ((u = ser12_check_uart(dev->base_addr)) == c_uart_unknown){  in ser12_open()
403 		release_region(dev->base_addr, SER12_EXTENT);  in ser12_open()
406 	outb(0, FCR(dev->base_addr));  /* disable FIFOs */  in ser12_open()
407 	outb(0x0d, MCR(dev->base_addr));  in ser12_open()
408 	outb(0, IER(dev->base_addr));  in ser12_open()
411 		release_region(dev->base_addr, SER12_EXTENT);  in ser12_open()
425 	outb(0x0a, IER(dev->base_addr));  in ser12_open()
431 	outb(0x00, THR(dev->base_addr));  in ser12_open()
434 	       bc_drvname, dev->base_addr, dev->irq, bc->baud, uart_str[u]);  in ser12_open()
449 	outb(0, IER(dev->base_addr));  in ser12_close()
450 	outb(1, MCR(dev->base_addr));  in ser12_close()
452 	release_region(dev->base_addr, SER12_EXTENT);  in ser12_close()
454 	       bc_drvname, dev->base_addr, dev->irq);  in ser12_close()