Lines Matching full:up
52 static inline unsigned int ar933x_uart_read(struct ar933x_uart_port *up, in ar933x_uart_read() argument
55 return readl(up->port.membase + offset); in ar933x_uart_read()
58 static inline void ar933x_uart_write(struct ar933x_uart_port *up, in ar933x_uart_write() argument
61 writel(value, up->port.membase + offset); in ar933x_uart_write()
64 static inline void ar933x_uart_rmw(struct ar933x_uart_port *up, in ar933x_uart_rmw() argument
71 t = ar933x_uart_read(up, offset); in ar933x_uart_rmw()
74 ar933x_uart_write(up, offset, t); in ar933x_uart_rmw()
77 static inline void ar933x_uart_rmw_set(struct ar933x_uart_port *up, in ar933x_uart_rmw_set() argument
81 ar933x_uart_rmw(up, offset, 0, val); in ar933x_uart_rmw_set()
84 static inline void ar933x_uart_rmw_clear(struct ar933x_uart_port *up, in ar933x_uart_rmw_clear() argument
88 ar933x_uart_rmw(up, offset, val, 0); in ar933x_uart_rmw_clear()
91 static inline void ar933x_uart_start_tx_interrupt(struct ar933x_uart_port *up) in ar933x_uart_start_tx_interrupt() argument
93 up->ier |= AR933X_UART_INT_TX_EMPTY; in ar933x_uart_start_tx_interrupt()
94 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier); in ar933x_uart_start_tx_interrupt()
97 static inline void ar933x_uart_stop_tx_interrupt(struct ar933x_uart_port *up) in ar933x_uart_stop_tx_interrupt() argument
99 up->ier &= ~AR933X_UART_INT_TX_EMPTY; in ar933x_uart_stop_tx_interrupt()
100 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier); in ar933x_uart_stop_tx_interrupt()
103 static inline void ar933x_uart_putc(struct ar933x_uart_port *up, int ch) in ar933x_uart_putc() argument
109 ar933x_uart_write(up, AR933X_UART_DATA_REG, rdata); in ar933x_uart_putc()
114 struct ar933x_uart_port *up = in ar933x_uart_tx_empty() local
119 spin_lock_irqsave(&up->port.lock, flags); in ar933x_uart_tx_empty()
120 rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG); in ar933x_uart_tx_empty()
121 spin_unlock_irqrestore(&up->port.lock, flags); in ar933x_uart_tx_empty()
137 struct ar933x_uart_port *up = in ar933x_uart_start_tx() local
140 ar933x_uart_start_tx_interrupt(up); in ar933x_uart_start_tx()
145 struct ar933x_uart_port *up = in ar933x_uart_stop_tx() local
148 ar933x_uart_stop_tx_interrupt(up); in ar933x_uart_stop_tx()
153 struct ar933x_uart_port *up = in ar933x_uart_stop_rx() local
156 up->ier &= ~AR933X_UART_INT_RX_VALID; in ar933x_uart_stop_rx()
157 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier); in ar933x_uart_stop_rx()
162 struct ar933x_uart_port *up = in ar933x_uart_break_ctl() local
166 spin_lock_irqsave(&up->port.lock, flags); in ar933x_uart_break_ctl()
168 ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, in ar933x_uart_break_ctl()
171 ar933x_uart_rmw_clear(up, AR933X_UART_CS_REG, in ar933x_uart_break_ctl()
173 spin_unlock_irqrestore(&up->port.lock, flags); in ar933x_uart_break_ctl()
231 struct ar933x_uart_port *up = in ar933x_uart_set_termios() local
257 baud = uart_get_baud_rate(port, new, old, up->min_baud, up->max_baud); in ar933x_uart_set_termios()
264 spin_lock_irqsave(&up->port.lock, flags); in ar933x_uart_set_termios()
267 ar933x_uart_rmw_clear(up, AR933X_UART_CS_REG, in ar933x_uart_set_termios()
273 up->port.ignore_status_mask = 0; in ar933x_uart_set_termios()
277 up->port.ignore_status_mask |= AR933X_DUMMY_STATUS_RD; in ar933x_uart_set_termios()
279 ar933x_uart_write(up, AR933X_UART_CLOCK_REG, in ar933x_uart_set_termios()
283 ar933x_uart_rmw(up, AR933X_UART_CS_REG, AR933X_UART_CS_PARITY_M, cs); in ar933x_uart_set_termios()
286 ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, in ar933x_uart_set_termios()
290 ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, in ar933x_uart_set_termios()
294 ar933x_uart_rmw(up, AR933X_UART_CS_REG, in ar933x_uart_set_termios()
298 spin_unlock_irqrestore(&up->port.lock, flags); in ar933x_uart_set_termios()
304 static void ar933x_uart_rx_chars(struct ar933x_uart_port *up) in ar933x_uart_rx_chars() argument
306 struct tty_port *port = &up->port.state->port; in ar933x_uart_rx_chars()
313 rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG); in ar933x_uart_rx_chars()
318 ar933x_uart_write(up, AR933X_UART_DATA_REG, in ar933x_uart_rx_chars()
321 up->port.icount.rx++; in ar933x_uart_rx_chars()
324 if (uart_handle_sysrq_char(&up->port, ch)) in ar933x_uart_rx_chars()
327 if ((up->port.ignore_status_mask & AR933X_DUMMY_STATUS_RD) == 0) in ar933x_uart_rx_chars()
331 spin_unlock(&up->port.lock); in ar933x_uart_rx_chars()
333 spin_lock(&up->port.lock); in ar933x_uart_rx_chars()
336 static void ar933x_uart_tx_chars(struct ar933x_uart_port *up) in ar933x_uart_tx_chars() argument
338 struct circ_buf *xmit = &up->port.state->xmit; in ar933x_uart_tx_chars()
341 if (uart_tx_stopped(&up->port)) in ar933x_uart_tx_chars()
344 count = up->port.fifosize; in ar933x_uart_tx_chars()
348 rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG); in ar933x_uart_tx_chars()
352 if (up->port.x_char) { in ar933x_uart_tx_chars()
353 ar933x_uart_putc(up, up->port.x_char); in ar933x_uart_tx_chars()
354 up->port.icount.tx++; in ar933x_uart_tx_chars()
355 up->port.x_char = 0; in ar933x_uart_tx_chars()
362 ar933x_uart_putc(up, xmit->buf[xmit->tail]); in ar933x_uart_tx_chars()
365 up->port.icount.tx++; in ar933x_uart_tx_chars()
369 uart_write_wakeup(&up->port); in ar933x_uart_tx_chars()
372 ar933x_uart_start_tx_interrupt(up); in ar933x_uart_tx_chars()
377 struct ar933x_uart_port *up = dev_id; in ar933x_uart_interrupt() local
380 status = ar933x_uart_read(up, AR933X_UART_CS_REG); in ar933x_uart_interrupt()
384 spin_lock(&up->port.lock); in ar933x_uart_interrupt()
386 status = ar933x_uart_read(up, AR933X_UART_INT_REG); in ar933x_uart_interrupt()
387 status &= ar933x_uart_read(up, AR933X_UART_INT_EN_REG); in ar933x_uart_interrupt()
390 ar933x_uart_write(up, AR933X_UART_INT_REG, in ar933x_uart_interrupt()
392 ar933x_uart_rx_chars(up); in ar933x_uart_interrupt()
396 ar933x_uart_write(up, AR933X_UART_INT_REG, in ar933x_uart_interrupt()
398 ar933x_uart_stop_tx_interrupt(up); in ar933x_uart_interrupt()
399 ar933x_uart_tx_chars(up); in ar933x_uart_interrupt()
402 spin_unlock(&up->port.lock); in ar933x_uart_interrupt()
409 struct ar933x_uart_port *up = in ar933x_uart_startup() local
414 ret = request_irq(up->port.irq, ar933x_uart_interrupt, in ar933x_uart_startup()
415 up->port.irqflags, dev_name(up->port.dev), up); in ar933x_uart_startup()
419 spin_lock_irqsave(&up->port.lock, flags); in ar933x_uart_startup()
422 ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, in ar933x_uart_startup()
426 ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, in ar933x_uart_startup()
430 up->ier = AR933X_UART_INT_RX_VALID; in ar933x_uart_startup()
431 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier); in ar933x_uart_startup()
433 spin_unlock_irqrestore(&up->port.lock, flags); in ar933x_uart_startup()
440 struct ar933x_uart_port *up = in ar933x_uart_shutdown() local
444 up->ier = 0; in ar933x_uart_shutdown()
445 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier); in ar933x_uart_shutdown()
448 ar933x_uart_rmw_clear(up, AR933X_UART_CS_REG, in ar933x_uart_shutdown()
451 free_irq(up->port.irq, up); in ar933x_uart_shutdown()
479 struct ar933x_uart_port *up = in ar933x_uart_verify_port() local
489 if (ser->baud_base < up->min_baud || in ar933x_uart_verify_port()
490 ser->baud_base > up->max_baud) in ar933x_uart_verify_port()
518 static void ar933x_uart_wait_xmitr(struct ar933x_uart_port *up) in ar933x_uart_wait_xmitr() argument
523 /* Wait up to 60ms for the character(s) to be sent. */ in ar933x_uart_wait_xmitr()
525 status = ar933x_uart_read(up, AR933X_UART_DATA_REG); in ar933x_uart_wait_xmitr()
534 struct ar933x_uart_port *up = in ar933x_uart_console_putchar() local
537 ar933x_uart_wait_xmitr(up); in ar933x_uart_console_putchar()
538 ar933x_uart_putc(up, ch); in ar933x_uart_console_putchar()
544 struct ar933x_uart_port *up = ar933x_console_ports[co->index]; in ar933x_uart_console_write() local
551 if (up->port.sysrq) in ar933x_uart_console_write()
554 locked = spin_trylock(&up->port.lock); in ar933x_uart_console_write()
556 spin_lock(&up->port.lock); in ar933x_uart_console_write()
561 int_en = ar933x_uart_read(up, AR933X_UART_INT_EN_REG); in ar933x_uart_console_write()
562 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, 0); in ar933x_uart_console_write()
564 uart_console_write(&up->port, s, count, ar933x_uart_console_putchar); in ar933x_uart_console_write()
570 ar933x_uart_wait_xmitr(up); in ar933x_uart_console_write()
571 ar933x_uart_write(up, AR933X_UART_INT_EN_REG, int_en); in ar933x_uart_console_write()
573 ar933x_uart_write(up, AR933X_UART_INT_REG, AR933X_UART_INT_ALLINTS); in ar933x_uart_console_write()
576 spin_unlock(&up->port.lock); in ar933x_uart_console_write()
583 struct ar933x_uart_port *up; in ar933x_uart_console_setup() local
592 up = ar933x_console_ports[co->index]; in ar933x_uart_console_setup()
593 if (!up) in ar933x_uart_console_setup()
599 return uart_set_options(&up->port, co, baud, parity, bits, flow); in ar933x_uart_console_setup()
623 struct ar933x_uart_port *up; in ar933x_uart_probe() local
655 up = devm_kzalloc(&pdev->dev, sizeof(struct ar933x_uart_port), in ar933x_uart_probe()
657 if (!up) in ar933x_uart_probe()
660 up->clk = devm_clk_get(&pdev->dev, "uart"); in ar933x_uart_probe()
661 if (IS_ERR(up->clk)) { in ar933x_uart_probe()
663 return PTR_ERR(up->clk); in ar933x_uart_probe()
666 port = &up->port; in ar933x_uart_probe()
673 ret = clk_prepare_enable(up->clk); in ar933x_uart_probe()
677 port->uartclk = clk_get_rate(up->clk); in ar933x_uart_probe()
695 up->min_baud = max_t(unsigned int, baud, AR933X_UART_MIN_BAUD); in ar933x_uart_probe()
698 up->max_baud = min_t(unsigned int, baud, AR933X_UART_MAX_BAUD); in ar933x_uart_probe()
701 ar933x_console_ports[up->port.line] = up; in ar933x_uart_probe()
704 ret = uart_add_one_port(&ar933x_uart_driver, &up->port); in ar933x_uart_probe()
708 platform_set_drvdata(pdev, up); in ar933x_uart_probe()
712 clk_disable_unprepare(up->clk); in ar933x_uart_probe()
718 struct ar933x_uart_port *up; in ar933x_uart_remove() local
720 up = platform_get_drvdata(pdev); in ar933x_uart_remove()
722 if (up) { in ar933x_uart_remove()
723 uart_remove_one_port(&ar933x_uart_driver, &up->port); in ar933x_uart_remove()
724 clk_disable_unprepare(up->clk); in ar933x_uart_remove()