115 	struct uart_port	port;  member
118 static void netx_stop_tx(struct uart_port *port)  in netx_stop_tx()  argument
121 	val = readl(port->membase + UART_CR);  in netx_stop_tx()
122 	writel(val & ~CR_TIE,  port->membase + UART_CR);  in netx_stop_tx()
125 static void netx_stop_rx(struct uart_port *port)  in netx_stop_rx()  argument
128 	val = readl(port->membase + UART_CR);  in netx_stop_rx()
129 	writel(val & ~CR_RIE,  port->membase + UART_CR);  in netx_stop_rx()
132 static void netx_enable_ms(struct uart_port *port)  in netx_enable_ms()  argument
135 	val = readl(port->membase + UART_CR);  in netx_enable_ms()
136 	writel(val | CR_MSIE, port->membase + UART_CR);  in netx_enable_ms()
139 static inline void netx_transmit_buffer(struct uart_port *port)  in netx_transmit_buffer()  argument
141 	struct circ_buf *xmit = &port->state->xmit;  in netx_transmit_buffer()
143 	if (port->x_char) {  in netx_transmit_buffer()
144 		writel(port->x_char, port->membase + UART_DR);  in netx_transmit_buffer()
145 		port->icount.tx++;  in netx_transmit_buffer()
146 		port->x_char = 0;  in netx_transmit_buffer()
150 	if (uart_tx_stopped(port) || uart_circ_empty(xmit)) {  in netx_transmit_buffer()
151 		netx_stop_tx(port);  in netx_transmit_buffer()
158 		writel(xmit->buf[xmit->tail], port->membase + UART_DR);  in netx_transmit_buffer()
161 		port->icount.tx++;  in netx_transmit_buffer()
164 	} while (!(readl(port->membase + UART_FR) & FR_TXFF));  in netx_transmit_buffer()
167 		netx_stop_tx(port);  in netx_transmit_buffer()
170 static void netx_start_tx(struct uart_port *port)  in netx_start_tx()  argument
173 	    readl(port->membase + UART_CR) | CR_TIE, port->membase + UART_CR);  in netx_start_tx()
175 	if (!(readl(port->membase + UART_FR) & FR_TXFF))  in netx_start_tx()
176 		netx_transmit_buffer(port);  in netx_start_tx()
179 static unsigned int netx_tx_empty(struct uart_port *port)  in netx_tx_empty()  argument
181 	return readl(port->membase + UART_FR) & FR_BUSY ? 0 : TIOCSER_TEMT;  in netx_tx_empty()
184 static void netx_txint(struct uart_port *port)  in netx_txint()  argument
186 	struct circ_buf *xmit = &port->state->xmit;  in netx_txint()
188 	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {  in netx_txint()
189 		netx_stop_tx(port);  in netx_txint()
193 	netx_transmit_buffer(port);  in netx_txint()
196 		uart_write_wakeup(port);  in netx_txint()
199 static void netx_rxint(struct uart_port *port, unsigned long *flags)  in netx_rxint()  argument
203 	while (!(readl(port->membase + UART_FR) & FR_RXFE)) {  in netx_rxint()
204 		rx = readl(port->membase + UART_DR);  in netx_rxint()
206 		port->icount.rx++;  in netx_rxint()
207 		status = readl(port->membase + UART_SR);  in netx_rxint()
209 			writel(0, port->membase + UART_SR);  in netx_rxint()
210 			if (uart_handle_break(port))  in netx_rxint()
217 				port->icount.parity++;  in netx_rxint()
219 				port->icount.frame++;  in netx_rxint()
221 				port->icount.overrun++;  in netx_rxint()
223 			status &= port->read_status_mask;  in netx_rxint()
233 		if (uart_handle_sysrq_char(port, rx))  in netx_rxint()
236 		uart_insert_char(port, status, SR_OE, rx, flg);  in netx_rxint()
239 	spin_unlock_irqrestore(&port->lock, *flags);  in netx_rxint()
240 	tty_flip_buffer_push(&port->state->port);  in netx_rxint()
241 	spin_lock_irqsave(&port->lock, *flags);  in netx_rxint()
246 	struct uart_port *port = dev_id;  in netx_int()  local
250 	spin_lock_irqsave(&port->lock,flags);  in netx_int()
252 	status = readl(port->membase + UART_IIR) & IIR_MASK;  in netx_int()
255 			netx_rxint(port, &flags);  in netx_int()
257 			netx_txint(port);  in netx_int()
259 			if (readl(port->membase + UART_FR) & FR_CTS)  in netx_int()
260 				uart_handle_cts_change(port, 1);  in netx_int()
262 				uart_handle_cts_change(port, 0);  in netx_int()
264 		writel(0, port->membase + UART_IIR);  in netx_int()
265 		status = readl(port->membase + UART_IIR) & IIR_MASK;  in netx_int()
268 	spin_unlock_irqrestore(&port->lock,flags);  in netx_int()
272 static unsigned int netx_get_mctrl(struct uart_port *port)  in netx_get_mctrl()  argument
276 	if (readl(port->membase + UART_FR) & FR_CTS)  in netx_get_mctrl()
282 static void netx_set_mctrl(struct uart_port *port, unsigned int mctrl)  in netx_set_mctrl()  argument
288 		val = readl(port->membase + UART_RTS_CR);  in netx_set_mctrl()
289 		writel(val | RTS_CR_RTS, port->membase + UART_RTS_CR);  in netx_set_mctrl()
293 static void netx_break_ctl(struct uart_port *port, int break_state)  in netx_break_ctl()  argument
296 	spin_lock_irq(&port->lock);  in netx_break_ctl()
298 	line_cr = readl(port->membase + UART_LINE_CR);  in netx_break_ctl()
303 	writel(line_cr, port->membase + UART_LINE_CR);  in netx_break_ctl()
305 	spin_unlock_irq(&port->lock);  in netx_break_ctl()
308 static int netx_startup(struct uart_port *port)  in netx_startup()  argument
312 	ret = request_irq(port->irq, netx_int, 0,  in netx_startup()
313 			     DRIVER_NAME, port);  in netx_startup()
315 		dev_err(port->dev, "unable to grab irq%d\n",port->irq);  in netx_startup()
319 	writel(readl(port->membase + UART_LINE_CR) | LINE_CR_FEN,  in netx_startup()
320 		port->membase + UART_LINE_CR);  in netx_startup()
323 		port->membase + UART_CR);  in netx_startup()
329 static void netx_shutdown(struct uart_port *port)  in netx_shutdown()  argument
331 	writel(0, port->membase + UART_CR) ;  in netx_shutdown()
333 	free_irq(port->irq, port);  in netx_shutdown()
337 netx_set_termios(struct uart_port *port, struct ktermios *termios,  in netx_set_termios()  argument
372 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);  in netx_set_termios()
378 	spin_lock_irq(&port->lock);  in netx_set_termios()
380 	uart_update_timeout(port, termios->c_cflag, baud);  in netx_set_termios()
382 	old_cr = readl(port->membase + UART_CR);  in netx_set_termios()
386 		port->membase + UART_CR);  in netx_set_termios()
389 	while (readl(port->membase + UART_FR) & FR_BUSY);  in netx_set_termios()
392 	writel(old_cr & ~CR_UART_EN, port->membase + UART_CR);  in netx_set_termios()
396 	if (UART_ENABLE_MS(port, termios->c_cflag))  in netx_set_termios()
399 	writel((quot>>8) & 0xff, port->membase + UART_BAUDDIV_MSB);  in netx_set_termios()
400 	writel(quot & 0xff, port->membase + UART_BAUDDIV_LSB);  in netx_set_termios()
401 	writel(line_cr, port->membase + UART_LINE_CR);  in netx_set_termios()
403 	writel(rts_cr, port->membase + UART_RTS_CR);  in netx_set_termios()
408 	port->ignore_status_mask = 0;  in netx_set_termios()
410 		port->ignore_status_mask |= SR_PE;  in netx_set_termios()
412 		port->ignore_status_mask |= SR_BE;  in netx_set_termios()
418 			port->ignore_status_mask |= SR_PE;  in netx_set_termios()
421 	port->read_status_mask = 0;  in netx_set_termios()
423 		port->read_status_mask |= SR_BE;  in netx_set_termios()
425 		port->read_status_mask |= SR_PE | SR_FE;  in netx_set_termios()
427 	writel(old_cr, port->membase + UART_CR);  in netx_set_termios()
429 	spin_unlock_irq(&port->lock);  in netx_set_termios()
432 static const char *netx_type(struct uart_port *port)  in netx_type()  argument
434 	return port->type == PORT_NETX ? "NETX" : NULL;  in netx_type()
437 static void netx_release_port(struct uart_port *port)  in netx_release_port()  argument
439 	release_mem_region(port->mapbase, UART_PORT_SIZE);  in netx_release_port()
442 static int netx_request_port(struct uart_port *port)  in netx_request_port()  argument
444 	return request_mem_region(port->mapbase, UART_PORT_SIZE,  in netx_request_port()
448 static void netx_config_port(struct uart_port *port, int flags)  in netx_config_port()  argument
450 	if (flags & UART_CONFIG_TYPE && netx_request_port(port) == 0)  in netx_config_port()
451 		port->type = PORT_NETX;  in netx_config_port()
455 netx_verify_port(struct uart_port *port, struct serial_struct *ser)  in netx_verify_port()  argument
486 	.port = {
499 	.port = {
512 	.port = {
529 static void netx_console_putchar(struct uart_port *port, int ch)  in netx_console_putchar()  argument
531 	while (readl(port->membase + UART_FR) & FR_BUSY);  in netx_console_putchar()
532 	writel(ch, port->membase + UART_DR);  in netx_console_putchar()
538 	struct uart_port *port = &netx_ports[co->index].port;  in netx_console_write()  local
541 	cr_save = readl(port->membase + UART_CR);  in netx_console_write()
542 	writel(cr_save | CR_UART_EN, port->membase + UART_CR);  in netx_console_write()
544 	uart_console_write(port, s, count, netx_console_putchar);  in netx_console_write()
546 	while (readl(port->membase + UART_FR) & FR_BUSY);  in netx_console_write()
547 	writel(cr_save, port->membase + UART_CR);  in netx_console_write()
551 netx_console_get_options(struct uart_port *port, int *baud,  in netx_console_get_options()  argument
556 	*baud = (readl(port->membase + UART_BAUDDIV_MSB) << 8) |  in netx_console_get_options()
557 		readl(port->membase + UART_BAUDDIV_LSB);  in netx_console_get_options()
564 	line_cr = readl(port->membase + UART_LINE_CR);  in netx_console_get_options()
588 	if (readl(port->membase + UART_RTS_CR) & RTS_CR_AUTO)  in netx_console_get_options()
616 		if (readl(sport->port.membase + UART_CR) & CR_UART_EN) {  in netx_console_setup()
617 			netx_console_get_options(&sport->port, &baud,  in netx_console_setup()
623 	return uart_set_options(&sport->port, co, baud, parity, bits, flow);  in netx_console_setup()
664 		uart_suspend_port(&netx_reg, &sport->port);  in serial_netx_suspend()
674 		uart_resume_port(&netx_reg, &sport->port);  in serial_netx_resume()
681 	struct uart_port *port = &netx_ports[pdev->id].port;  in serial_netx_probe()  local
685 	port->dev = &pdev->dev;  in serial_netx_probe()
687 	writel(1, port->membase + UART_RXFIFO_IRQLEVEL);  in serial_netx_probe()
688 	uart_add_one_port(&netx_reg, &netx_ports[pdev->id].port);  in serial_netx_probe()
699 		uart_remove_one_port(&netx_reg, &sport->port);  in serial_netx_remove()