60 #define UART_GET_UTCR0(sport)	__raw_readl((sport)->port.membase + UTCR0)
61 #define UART_GET_UTCR1(sport)	__raw_readl((sport)->port.membase + UTCR1)
62 #define UART_GET_UTCR2(sport)	__raw_readl((sport)->port.membase + UTCR2)
63 #define UART_GET_UTCR3(sport)	__raw_readl((sport)->port.membase + UTCR3)
64 #define UART_GET_UTSR0(sport)	__raw_readl((sport)->port.membase + UTSR0)
65 #define UART_GET_UTSR1(sport)	__raw_readl((sport)->port.membase + UTSR1)
66 #define UART_GET_CHAR(sport)	__raw_readl((sport)->port.membase + UTDR)
68 #define UART_PUT_UTCR0(sport,v)	__raw_writel((v),(sport)->port.membase + UTCR0)
69 #define UART_PUT_UTCR1(sport,v)	__raw_writel((v),(sport)->port.membase + UTCR1)
70 #define UART_PUT_UTCR2(sport,v)	__raw_writel((v),(sport)->port.membase + UTCR2)
71 #define UART_PUT_UTCR3(sport,v)	__raw_writel((v),(sport)->port.membase + UTCR3)
72 #define UART_PUT_UTSR0(sport,v)	__raw_writel((v),(sport)->port.membase + UTSR0)
73 #define UART_PUT_UTSR1(sport,v)	__raw_writel((v),(sport)->port.membase + UTSR1)
74 #define UART_PUT_CHAR(sport,v)	__raw_writel((v),(sport)->port.membase + UTDR)
90 	struct uart_port	port;  member
102 	status = sport->port.ops->get_mctrl(&sport->port);  in sa1100_mctrl_check()
111 		sport->port.icount.rng++;  in sa1100_mctrl_check()
113 		sport->port.icount.dsr++;  in sa1100_mctrl_check()
115 		uart_handle_dcd_change(&sport->port, status & TIOCM_CAR);  in sa1100_mctrl_check()
117 		uart_handle_cts_change(&sport->port, status & TIOCM_CTS);  in sa1100_mctrl_check()
119 	wake_up_interruptible(&sport->port.state->port.delta_msr_wait);  in sa1100_mctrl_check()
131 	if (sport->port.state) {  in sa1100_timeout()
132 		spin_lock_irqsave(&sport->port.lock, flags);  in sa1100_timeout()
134 		spin_unlock_irqrestore(&sport->port.lock, flags);  in sa1100_timeout()
143 static void sa1100_stop_tx(struct uart_port *port)  in sa1100_stop_tx()  argument
146 		container_of(port, struct sa1100_port, port);  in sa1100_stop_tx()
151 	sport->port.read_status_mask &= ~UTSR0_TO_SM(UTSR0_TFS);  in sa1100_stop_tx()
157 static void sa1100_start_tx(struct uart_port *port)  in sa1100_start_tx()  argument
160 		container_of(port, struct sa1100_port, port);  in sa1100_start_tx()
164 	sport->port.read_status_mask |= UTSR0_TO_SM(UTSR0_TFS);  in sa1100_start_tx()
171 static void sa1100_stop_rx(struct uart_port *port)  in sa1100_stop_rx()  argument
174 		container_of(port, struct sa1100_port, port);  in sa1100_stop_rx()
184 static void sa1100_enable_ms(struct uart_port *port)  in sa1100_enable_ms()  argument
187 		container_of(port, struct sa1100_port, port);  in sa1100_enable_ms()
202 		sport->port.icount.rx++;  in sa1100_rx_chars()
212 				sport->port.icount.parity++;  in sa1100_rx_chars()
214 				sport->port.icount.frame++;  in sa1100_rx_chars()
216 				sport->port.icount.overrun++;  in sa1100_rx_chars()
218 			status &= sport->port.read_status_mask;  in sa1100_rx_chars()
226 			sport->port.sysrq = 0;  in sa1100_rx_chars()
230 		if (uart_handle_sysrq_char(&sport->port, ch))  in sa1100_rx_chars()
233 		uart_insert_char(&sport->port, status, UTSR1_TO_SM(UTSR1_ROR), ch, flg);  in sa1100_rx_chars()
240 	spin_unlock(&sport->port.lock);  in sa1100_rx_chars()
241 	tty_flip_buffer_push(&sport->port.state->port);  in sa1100_rx_chars()
242 	spin_lock(&sport->port.lock);  in sa1100_rx_chars()
247 	struct circ_buf *xmit = &sport->port.state->xmit;  in sa1100_tx_chars()
249 	if (sport->port.x_char) {  in sa1100_tx_chars()
250 		UART_PUT_CHAR(sport, sport->port.x_char);  in sa1100_tx_chars()
251 		sport->port.icount.tx++;  in sa1100_tx_chars()
252 		sport->port.x_char = 0;  in sa1100_tx_chars()
262 	if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {  in sa1100_tx_chars()
263 		sa1100_stop_tx(&sport->port);  in sa1100_tx_chars()
274 		sport->port.icount.tx++;  in sa1100_tx_chars()
280 		uart_write_wakeup(&sport->port);  in sa1100_tx_chars()
283 		sa1100_stop_tx(&sport->port);  in sa1100_tx_chars()
291 	spin_lock(&sport->port.lock);  in sa1100_int()
293 	status &= SM_TO_UTSR0(sport->port.read_status_mask) | ~UTSR0_TFS;  in sa1100_int()
307 			sport->port.icount.brk++;  in sa1100_int()
310 			uart_handle_break(&sport->port);  in sa1100_int()
317 		status &= SM_TO_UTSR0(sport->port.read_status_mask) |  in sa1100_int()
320 	spin_unlock(&sport->port.lock);  in sa1100_int()
328 static unsigned int sa1100_tx_empty(struct uart_port *port)  in sa1100_tx_empty()  argument
331 		container_of(port, struct sa1100_port, port);  in sa1100_tx_empty()
336 static unsigned int sa1100_get_mctrl(struct uart_port *port)  in sa1100_get_mctrl()  argument
341 static void sa1100_set_mctrl(struct uart_port *port, unsigned int mctrl)  in sa1100_set_mctrl()  argument
348 static void sa1100_break_ctl(struct uart_port *port, int break_state)  in sa1100_break_ctl()  argument
351 		container_of(port, struct sa1100_port, port);  in sa1100_break_ctl()
355 	spin_lock_irqsave(&sport->port.lock, flags);  in sa1100_break_ctl()
362 	spin_unlock_irqrestore(&sport->port.lock, flags);  in sa1100_break_ctl()
365 static int sa1100_startup(struct uart_port *port)  in sa1100_startup()  argument
368 		container_of(port, struct sa1100_port, port);  in sa1100_startup()
374 	retval = request_irq(sport->port.irq, sa1100_int, 0,  in sa1100_startup()
388 	spin_lock_irq(&sport->port.lock);  in sa1100_startup()
389 	sa1100_enable_ms(&sport->port);  in sa1100_startup()
390 	spin_unlock_irq(&sport->port.lock);  in sa1100_startup()
395 static void sa1100_shutdown(struct uart_port *port)  in sa1100_shutdown()  argument
398 		container_of(port, struct sa1100_port, port);  in sa1100_shutdown()
408 	free_irq(sport->port.irq, sport);  in sa1100_shutdown()
417 sa1100_set_termios(struct uart_port *port, struct ktermios *termios,  in sa1100_set_termios()  argument
421 		container_of(port, struct sa1100_port, port);  in sa1100_set_termios()
452 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);   in sa1100_set_termios()
453 	quot = uart_get_divisor(port, baud);  in sa1100_set_termios()
455 	spin_lock_irqsave(&sport->port.lock, flags);  in sa1100_set_termios()
457 	sport->port.read_status_mask &= UTSR0_TO_SM(UTSR0_TFS);  in sa1100_set_termios()
458 	sport->port.read_status_mask |= UTSR1_TO_SM(UTSR1_ROR);  in sa1100_set_termios()
460 		sport->port.read_status_mask |=  in sa1100_set_termios()
463 		sport->port.read_status_mask |=  in sa1100_set_termios()
469 	sport->port.ignore_status_mask = 0;  in sa1100_set_termios()
471 		sport->port.ignore_status_mask |=  in sa1100_set_termios()
474 		sport->port.ignore_status_mask |=  in sa1100_set_termios()
481 			sport->port.ignore_status_mask |=  in sa1100_set_termios()
490 	uart_update_timeout(port, termios->c_cflag, baud);  in sa1100_set_termios()
516 	if (UART_ENABLE_MS(&sport->port, termios->c_cflag))  in sa1100_set_termios()
517 		sa1100_enable_ms(&sport->port);  in sa1100_set_termios()
519 	spin_unlock_irqrestore(&sport->port.lock, flags);  in sa1100_set_termios()
522 static const char *sa1100_type(struct uart_port *port)  in sa1100_type()  argument
525 		container_of(port, struct sa1100_port, port);  in sa1100_type()
527 	return sport->port.type == PORT_SA1100 ? "SA1100" : NULL;  in sa1100_type()
533 static void sa1100_release_port(struct uart_port *port)  in sa1100_release_port()  argument
536 		container_of(port, struct sa1100_port, port);  in sa1100_release_port()
538 	release_mem_region(sport->port.mapbase, UART_PORT_SIZE);  in sa1100_release_port()
544 static int sa1100_request_port(struct uart_port *port)  in sa1100_request_port()  argument
547 		container_of(port, struct sa1100_port, port);  in sa1100_request_port()
549 	return request_mem_region(sport->port.mapbase, UART_PORT_SIZE,  in sa1100_request_port()
556 static void sa1100_config_port(struct uart_port *port, int flags)  in sa1100_config_port()  argument
559 		container_of(port, struct sa1100_port, port);  in sa1100_config_port()
562 	    sa1100_request_port(&sport->port) == 0)  in sa1100_config_port()
563 		sport->port.type = PORT_SA1100;  in sa1100_config_port()
572 sa1100_verify_port(struct uart_port *port, struct serial_struct *ser)  in sa1100_verify_port()  argument
575 		container_of(port, struct sa1100_port, port);  in sa1100_verify_port()
580 	if (sport->port.irq != ser->irq)  in sa1100_verify_port()
584 	if (sport->port.uartclk / 16 != ser->baud_base)  in sa1100_verify_port()
586 	if ((void *)sport->port.mapbase != ser->iomem_base)  in sa1100_verify_port()
588 	if (sport->port.iobase != ser->port)  in sa1100_verify_port()
638 		sa1100_ports[i].port.uartclk   = 3686400;  in sa1100_init_ports()
639 		sa1100_ports[i].port.ops       = &sa1100_pops;  in sa1100_init_ports()
640 		sa1100_ports[i].port.fifosize  = 8;  in sa1100_init_ports()
641 		sa1100_ports[i].port.line      = i;  in sa1100_init_ports()
642 		sa1100_ports[i].port.iotype    = UPIO_MEM;  in sa1100_init_ports()
670 void __init sa1100_register_uart(int idx, int port)  in sa1100_register_uart()  argument
677 	switch (port) {  in sa1100_register_uart()
679 		sa1100_ports[idx].port.membase = (void __iomem *)&Ser1UTCR0;  in sa1100_register_uart()
680 		sa1100_ports[idx].port.mapbase = _Ser1UTCR0;  in sa1100_register_uart()
681 		sa1100_ports[idx].port.irq     = IRQ_Ser1UART;  in sa1100_register_uart()
682 		sa1100_ports[idx].port.flags   = UPF_BOOT_AUTOCONF;  in sa1100_register_uart()
686 		sa1100_ports[idx].port.membase = (void __iomem *)&Ser2UTCR0;  in sa1100_register_uart()
687 		sa1100_ports[idx].port.mapbase = _Ser2UTCR0;  in sa1100_register_uart()
688 		sa1100_ports[idx].port.irq     = IRQ_Ser2ICP;  in sa1100_register_uart()
689 		sa1100_ports[idx].port.flags   = UPF_BOOT_AUTOCONF;  in sa1100_register_uart()
693 		sa1100_ports[idx].port.membase = (void __iomem *)&Ser3UTCR0;  in sa1100_register_uart()
694 		sa1100_ports[idx].port.mapbase = _Ser3UTCR0;  in sa1100_register_uart()
695 		sa1100_ports[idx].port.irq     = IRQ_Ser3UART;  in sa1100_register_uart()
696 		sa1100_ports[idx].port.flags   = UPF_BOOT_AUTOCONF;  in sa1100_register_uart()
700 		printk(KERN_ERR "%s: bad port number %d\n", __func__, port);  in sa1100_register_uart()
706 static void sa1100_console_putchar(struct uart_port *port, int ch)  in sa1100_console_putchar()  argument
709 		container_of(port, struct sa1100_port, port);  in sa1100_console_putchar()
732 	uart_console_write(&sport->port, s, count, sa1100_console_putchar);  in sa1100_console_write()
776 		*baud = sport->port.uartclk / (16 * (quot + 1));  in sa1100_console_get_options()
803 	return uart_set_options(&sport->port, co, baud, parity, bits, flow);  in sa1100_console_setup()
845 		uart_suspend_port(&sa1100_reg, &sport->port);  in sa1100_serial_suspend()
855 		uart_resume_port(&sa1100_reg, &sport->port);  in sa1100_serial_resume()
871 			if (sa1100_ports[i].port.mapbase != res->start)  in sa1100_serial_probe()
874 			sa1100_ports[i].port.dev = &dev->dev;  in sa1100_serial_probe()
875 			uart_add_one_port(&sa1100_reg, &sa1100_ports[i].port);  in sa1100_serial_probe()
889 		uart_remove_one_port(&sa1100_reg, &sport->port);  in sa1100_serial_remove()