Lines Matching refs:port
82 struct uart_port port; member
88 static u32 altera_uart_readl(struct uart_port *port, int reg) in altera_uart_readl() argument
90 return readl(port->membase + (reg << port->regshift)); in altera_uart_readl()
93 static void altera_uart_writel(struct uart_port *port, u32 dat, int reg) in altera_uart_writel() argument
95 writel(dat, port->membase + (reg << port->regshift)); in altera_uart_writel()
98 static unsigned int altera_uart_tx_empty(struct uart_port *port) in altera_uart_tx_empty() argument
100 return (altera_uart_readl(port, ALTERA_UART_STATUS_REG) & in altera_uart_tx_empty()
104 static unsigned int altera_uart_get_mctrl(struct uart_port *port) in altera_uart_get_mctrl() argument
106 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_get_mctrl()
109 sigs = (altera_uart_readl(port, ALTERA_UART_STATUS_REG) & in altera_uart_get_mctrl()
116 static void altera_uart_set_mctrl(struct uart_port *port, unsigned int sigs) in altera_uart_set_mctrl() argument
118 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_set_mctrl()
125 altera_uart_writel(port, pp->imr, ALTERA_UART_CONTROL_REG); in altera_uart_set_mctrl()
128 static void altera_uart_start_tx(struct uart_port *port) in altera_uart_start_tx() argument
130 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_start_tx()
133 altera_uart_writel(port, pp->imr, ALTERA_UART_CONTROL_REG); in altera_uart_start_tx()
136 static void altera_uart_stop_tx(struct uart_port *port) in altera_uart_stop_tx() argument
138 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_stop_tx()
141 altera_uart_writel(port, pp->imr, ALTERA_UART_CONTROL_REG); in altera_uart_stop_tx()
144 static void altera_uart_stop_rx(struct uart_port *port) in altera_uart_stop_rx() argument
146 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_stop_rx()
149 altera_uart_writel(port, pp->imr, ALTERA_UART_CONTROL_REG); in altera_uart_stop_rx()
152 static void altera_uart_break_ctl(struct uart_port *port, int break_state) in altera_uart_break_ctl() argument
154 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_break_ctl()
157 spin_lock_irqsave(&port->lock, flags); in altera_uart_break_ctl()
162 altera_uart_writel(port, pp->imr, ALTERA_UART_CONTROL_REG); in altera_uart_break_ctl()
163 spin_unlock_irqrestore(&port->lock, flags); in altera_uart_break_ctl()
166 static void altera_uart_set_termios(struct uart_port *port, in altera_uart_set_termios() argument
173 baud = uart_get_baud_rate(port, termios, old, 0, 4000000); in altera_uart_set_termios()
174 baudclk = port->uartclk / baud; in altera_uart_set_termios()
180 spin_lock_irqsave(&port->lock, flags); in altera_uart_set_termios()
181 uart_update_timeout(port, termios->c_cflag, baud); in altera_uart_set_termios()
182 altera_uart_writel(port, baudclk, ALTERA_UART_DIVISOR_REG); in altera_uart_set_termios()
183 spin_unlock_irqrestore(&port->lock, flags); in altera_uart_set_termios()
194 struct uart_port *port = &pp->port; in altera_uart_rx_chars() local
198 while ((status = altera_uart_readl(port, ALTERA_UART_STATUS_REG)) & in altera_uart_rx_chars()
200 ch = altera_uart_readl(port, ALTERA_UART_RXDATA_REG); in altera_uart_rx_chars()
202 port->icount.rx++; in altera_uart_rx_chars()
205 altera_uart_writel(port, status, in altera_uart_rx_chars()
209 port->icount.brk++; in altera_uart_rx_chars()
210 if (uart_handle_break(port)) in altera_uart_rx_chars()
213 port->icount.parity++; in altera_uart_rx_chars()
215 port->icount.overrun++; in altera_uart_rx_chars()
217 port->icount.frame++; in altera_uart_rx_chars()
220 status &= port->read_status_mask; in altera_uart_rx_chars()
230 if (uart_handle_sysrq_char(port, ch)) in altera_uart_rx_chars()
232 uart_insert_char(port, status, ALTERA_UART_STATUS_ROE_MSK, ch, in altera_uart_rx_chars()
236 spin_unlock(&port->lock); in altera_uart_rx_chars()
237 tty_flip_buffer_push(&port->state->port); in altera_uart_rx_chars()
238 spin_lock(&port->lock); in altera_uart_rx_chars()
243 struct uart_port *port = &pp->port; in altera_uart_tx_chars() local
244 struct circ_buf *xmit = &port->state->xmit; in altera_uart_tx_chars()
246 if (port->x_char) { in altera_uart_tx_chars()
248 altera_uart_writel(port, port->x_char, ALTERA_UART_TXDATA_REG); in altera_uart_tx_chars()
249 port->x_char = 0; in altera_uart_tx_chars()
250 port->icount.tx++; in altera_uart_tx_chars()
254 while (altera_uart_readl(port, ALTERA_UART_STATUS_REG) & in altera_uart_tx_chars()
258 altera_uart_writel(port, xmit->buf[xmit->tail], in altera_uart_tx_chars()
261 port->icount.tx++; in altera_uart_tx_chars()
265 uart_write_wakeup(port); in altera_uart_tx_chars()
269 altera_uart_writel(port, pp->imr, ALTERA_UART_CONTROL_REG); in altera_uart_tx_chars()
275 struct uart_port *port = data; in altera_uart_interrupt() local
276 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_interrupt()
279 isr = altera_uart_readl(port, ALTERA_UART_STATUS_REG) & pp->imr; in altera_uart_interrupt()
281 spin_lock(&port->lock); in altera_uart_interrupt()
286 spin_unlock(&port->lock); in altera_uart_interrupt()
293 struct uart_port *port = (void *)data; in altera_uart_timer() local
294 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_timer()
296 altera_uart_interrupt(0, port); in altera_uart_timer()
297 mod_timer(&pp->tmr, jiffies + uart_poll_timeout(port)); in altera_uart_timer()
300 static void altera_uart_config_port(struct uart_port *port, int flags) in altera_uart_config_port() argument
302 port->type = PORT_ALTERA_UART; in altera_uart_config_port()
305 altera_uart_writel(port, 0, ALTERA_UART_CONTROL_REG); in altera_uart_config_port()
307 altera_uart_writel(port, 0, ALTERA_UART_STATUS_REG); in altera_uart_config_port()
310 static int altera_uart_startup(struct uart_port *port) in altera_uart_startup() argument
312 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_startup()
316 if (!port->irq) { in altera_uart_startup()
317 setup_timer(&pp->tmr, altera_uart_timer, (unsigned long)port); in altera_uart_startup()
318 mod_timer(&pp->tmr, jiffies + uart_poll_timeout(port)); in altera_uart_startup()
322 ret = request_irq(port->irq, altera_uart_interrupt, 0, in altera_uart_startup()
323 DRV_NAME, port); in altera_uart_startup()
326 "interrupt vector=%d\n", port->line, port->irq); in altera_uart_startup()
330 spin_lock_irqsave(&port->lock, flags); in altera_uart_startup()
334 writel(pp->imr, port->membase + ALTERA_UART_CONTROL_REG); in altera_uart_startup()
336 spin_unlock_irqrestore(&port->lock, flags); in altera_uart_startup()
341 static void altera_uart_shutdown(struct uart_port *port) in altera_uart_shutdown() argument
343 struct altera_uart *pp = container_of(port, struct altera_uart, port); in altera_uart_shutdown()
346 spin_lock_irqsave(&port->lock, flags); in altera_uart_shutdown()
350 writel(pp->imr, port->membase + ALTERA_UART_CONTROL_REG); in altera_uart_shutdown()
352 spin_unlock_irqrestore(&port->lock, flags); in altera_uart_shutdown()
354 if (port->irq) in altera_uart_shutdown()
355 free_irq(port->irq, port); in altera_uart_shutdown()
360 static const char *altera_uart_type(struct uart_port *port) in altera_uart_type() argument
362 return (port->type == PORT_ALTERA_UART) ? "Altera UART" : NULL; in altera_uart_type()
365 static int altera_uart_request_port(struct uart_port *port) in altera_uart_request_port() argument
371 static void altera_uart_release_port(struct uart_port *port) in altera_uart_release_port() argument
376 static int altera_uart_verify_port(struct uart_port *port, in altera_uart_verify_port() argument
385 static int altera_uart_poll_get_char(struct uart_port *port) in altera_uart_poll_get_char() argument
387 while (!(altera_uart_readl(port, ALTERA_UART_STATUS_REG) & in altera_uart_poll_get_char()
391 return altera_uart_readl(port, ALTERA_UART_RXDATA_REG); in altera_uart_poll_get_char()
394 static void altera_uart_poll_put_char(struct uart_port *port, unsigned char c) in altera_uart_poll_put_char() argument
396 while (!(altera_uart_readl(port, ALTERA_UART_STATUS_REG) & in altera_uart_poll_put_char()
400 altera_uart_writel(port, c, ALTERA_UART_TXDATA_REG); in altera_uart_poll_put_char()
433 static void altera_uart_console_putc(struct uart_port *port, int c) in altera_uart_console_putc() argument
435 while (!(altera_uart_readl(port, ALTERA_UART_STATUS_REG) & in altera_uart_console_putc()
439 writel(c, port->membase + ALTERA_UART_TXDATA_REG); in altera_uart_console_putc()
445 struct uart_port *port = &(altera_uart_ports + co->index)->port; in altera_uart_console_write() local
447 uart_console_write(port, s, count, altera_uart_console_putc); in altera_uart_console_write()
452 struct uart_port *port; in altera_uart_console_setup() local
460 port = &altera_uart_ports[co->index].port; in altera_uart_console_setup()
461 if (!port->membase) in altera_uart_console_setup()
467 return uart_set_options(port, co, baud, parity, bits, flow); in altera_uart_console_setup()
514 struct uart_port *port; in altera_uart_probe() local
523 if (altera_uart_ports[i].port.mapbase == 0) in altera_uart_probe()
530 port = &altera_uart_ports[i].port; in altera_uart_probe()
534 port->mapbase = res_mem->start; in altera_uart_probe()
536 port->mapbase = platp->mapbase; in altera_uart_probe()
542 port->irq = res_irq->start; in altera_uart_probe()
544 port->irq = platp->irq; in altera_uart_probe()
548 port->uartclk = platp->uartclk; in altera_uart_probe()
551 &port->uartclk); in altera_uart_probe()
556 port->membase = ioremap(port->mapbase, ALTERA_UART_SIZE); in altera_uart_probe()
557 if (!port->membase) in altera_uart_probe()
561 port->regshift = platp->bus_shift; in altera_uart_probe()
563 port->regshift = 0; in altera_uart_probe()
565 port->line = i; in altera_uart_probe()
566 port->type = PORT_ALTERA_UART; in altera_uart_probe()
567 port->iotype = SERIAL_IO_MEM; in altera_uart_probe()
568 port->ops = &altera_uart_ops; in altera_uart_probe()
569 port->flags = UPF_BOOT_AUTOCONF; in altera_uart_probe()
570 port->dev = &pdev->dev; in altera_uart_probe()
572 platform_set_drvdata(pdev, port); in altera_uart_probe()
574 uart_add_one_port(&altera_uart_driver, port); in altera_uart_probe()
581 struct uart_port *port = platform_get_drvdata(pdev); in altera_uart_remove() local
583 if (port) { in altera_uart_remove()
584 uart_remove_one_port(&altera_uart_driver, port); in altera_uart_remove()
585 port->mapbase = 0; in altera_uart_remove()