Lines Matching refs:up
175 static unsigned int sio_in(struct uart_sio_port *up, int offset) in sio_in() argument
177 return __sio_in(up->port.iobase + offset); in sio_in()
180 static void sio_out(struct uart_sio_port *up, int offset, int value) in sio_out() argument
182 __sio_out(value, up->port.iobase + offset); in sio_out()
185 static unsigned int serial_in(struct uart_sio_port *up, int offset) in serial_in() argument
193 static void serial_out(struct uart_sio_port *up, int offset, int value) in serial_out() argument
203 struct uart_sio_port *up = in m32r_sio_stop_tx() local
206 if (up->ier & UART_IER_THRI) { in m32r_sio_stop_tx()
207 up->ier &= ~UART_IER_THRI; in m32r_sio_stop_tx()
208 serial_out(up, UART_IER, up->ier); in m32r_sio_stop_tx()
215 struct uart_sio_port *up = in m32r_sio_start_tx() local
217 struct circ_buf *xmit = &up->port.state->xmit; in m32r_sio_start_tx()
219 if (!(up->ier & UART_IER_THRI)) { in m32r_sio_start_tx()
220 up->ier |= UART_IER_THRI; in m32r_sio_start_tx()
221 serial_out(up, UART_IER, up->ier); in m32r_sio_start_tx()
223 serial_out(up, UART_TX, xmit->buf[xmit->tail]); in m32r_sio_start_tx()
225 up->port.icount.tx++; in m32r_sio_start_tx()
228 while((serial_in(up, UART_LSR) & UART_EMPTY) != UART_EMPTY); in m32r_sio_start_tx()
230 struct uart_sio_port *up = in m32r_sio_start_tx()
233 if (!(up->ier & UART_IER_THRI)) { in m32r_sio_start_tx()
234 up->ier |= UART_IER_THRI; in m32r_sio_start_tx()
235 serial_out(up, UART_IER, up->ier); in m32r_sio_start_tx()
242 struct uart_sio_port *up = in m32r_sio_stop_rx() local
245 up->ier &= ~UART_IER_RLSI; in m32r_sio_stop_rx()
246 up->port.read_status_mask &= ~UART_LSR_DR; in m32r_sio_stop_rx()
247 serial_out(up, UART_IER, up->ier); in m32r_sio_stop_rx()
252 struct uart_sio_port *up = in m32r_sio_enable_ms() local
255 up->ier |= UART_IER_MSI; in m32r_sio_enable_ms()
256 serial_out(up, UART_IER, up->ier); in m32r_sio_enable_ms()
259 static void receive_chars(struct uart_sio_port *up, int *status) in receive_chars() argument
261 struct tty_port *port = &up->port.state->port; in receive_chars()
267 ch = sio_in(up, SIORXB); in receive_chars()
269 up->port.icount.rx++; in receive_chars()
278 up->port.icount.brk++; in receive_chars()
285 if (uart_handle_break(&up->port)) in receive_chars()
288 up->port.icount.parity++; in receive_chars()
290 up->port.icount.frame++; in receive_chars()
292 up->port.icount.overrun++; in receive_chars()
297 *status &= up->port.read_status_mask; in receive_chars()
307 if (uart_handle_sysrq_char(&up->port, ch)) in receive_chars()
309 if ((*status & up->port.ignore_status_mask) == 0) in receive_chars()
321 *status = serial_in(up, UART_LSR); in receive_chars()
324 spin_unlock(&up->port.lock); in receive_chars()
326 spin_lock(&up->port.lock); in receive_chars()
329 static void transmit_chars(struct uart_sio_port *up) in transmit_chars() argument
331 struct circ_buf *xmit = &up->port.state->xmit; in transmit_chars()
334 if (up->port.x_char) { in transmit_chars()
336 serial_out(up, UART_TX, up->port.x_char); in transmit_chars()
338 up->port.icount.tx++; in transmit_chars()
339 up->port.x_char = 0; in transmit_chars()
342 if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) { in transmit_chars()
343 m32r_sio_stop_tx(&up->port); in transmit_chars()
347 count = up->port.fifosize; in transmit_chars()
349 serial_out(up, UART_TX, xmit->buf[xmit->tail]); in transmit_chars()
351 up->port.icount.tx++; in transmit_chars()
354 while (!(serial_in(up, UART_LSR) & UART_LSR_THRE)); in transmit_chars()
359 uart_write_wakeup(&up->port); in transmit_chars()
364 m32r_sio_stop_tx(&up->port); in transmit_chars()
370 static inline void m32r_sio_handle_port(struct uart_sio_port *up, in m32r_sio_handle_port() argument
376 receive_chars(up, &status); in m32r_sio_handle_port()
378 transmit_chars(up); in m32r_sio_handle_port()
415 struct uart_sio_port *up; in m32r_sio_interrupt() local
418 up = list_entry(l, struct uart_sio_port, list); in m32r_sio_interrupt()
420 sts = sio_in(up, SIOSTS); in m32r_sio_interrupt()
422 spin_lock(&up->port.lock); in m32r_sio_interrupt()
423 m32r_sio_handle_port(up, sts); in m32r_sio_interrupt()
424 spin_unlock(&up->port.lock); in m32r_sio_interrupt()
453 static void serial_do_unlink(struct irq_info *i, struct uart_sio_port *up) in serial_do_unlink() argument
458 if (i->head == &up->list) in serial_do_unlink()
460 list_del(&up->list); in serial_do_unlink()
462 BUG_ON(i->head != &up->list); in serial_do_unlink()
469 static int serial_link_irq_chain(struct uart_sio_port *up) in serial_link_irq_chain() argument
471 struct irq_info *i = irq_lists + up->port.irq; in serial_link_irq_chain()
477 list_add(&up->list, i->head); in serial_link_irq_chain()
482 INIT_LIST_HEAD(&up->list); in serial_link_irq_chain()
483 i->head = &up->list; in serial_link_irq_chain()
486 ret = request_irq(up->port.irq, m32r_sio_interrupt, in serial_link_irq_chain()
488 ret |= request_irq(up->port.irq + 1, m32r_sio_interrupt, in serial_link_irq_chain()
491 serial_do_unlink(i, up); in serial_link_irq_chain()
497 static void serial_unlink_irq_chain(struct uart_sio_port *up) in serial_unlink_irq_chain() argument
499 struct irq_info *i = irq_lists + up->port.irq; in serial_unlink_irq_chain()
504 free_irq(up->port.irq, i); in serial_unlink_irq_chain()
505 free_irq(up->port.irq + 1, i); in serial_unlink_irq_chain()
508 serial_do_unlink(i, up); in serial_unlink_irq_chain()
516 struct uart_sio_port *up = (struct uart_sio_port *)data; in m32r_sio_timeout() local
520 sts = sio_in(up, SIOSTS); in m32r_sio_timeout()
522 spin_lock(&up->port.lock); in m32r_sio_timeout()
523 m32r_sio_handle_port(up, sts); in m32r_sio_timeout()
524 spin_unlock(&up->port.lock); in m32r_sio_timeout()
527 timeout = up->port.timeout; in m32r_sio_timeout()
529 mod_timer(&up->timer, jiffies + timeout); in m32r_sio_timeout()
534 struct uart_sio_port *up = in m32r_sio_tx_empty() local
539 spin_lock_irqsave(&up->port.lock, flags); in m32r_sio_tx_empty()
540 ret = serial_in(up, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0; in m32r_sio_tx_empty()
541 spin_unlock_irqrestore(&up->port.lock, flags); in m32r_sio_tx_empty()
563 struct uart_sio_port *up = in m32r_sio_startup() local
574 if (!up->port.irq) { in m32r_sio_startup()
575 unsigned int timeout = up->port.timeout; in m32r_sio_startup()
579 up->timer.data = (unsigned long)up; in m32r_sio_startup()
580 mod_timer(&up->timer, jiffies + timeout); in m32r_sio_startup()
582 retval = serial_link_irq_chain(up); in m32r_sio_startup()
594 up->ier = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI; in m32r_sio_startup()
595 sio_out(up, SIOTRCR, up->ier); in m32r_sio_startup()
607 struct uart_sio_port *up = in m32r_sio_shutdown() local
613 up->ier = 0; in m32r_sio_shutdown()
614 sio_out(up, SIOTRCR, 0); in m32r_sio_shutdown()
622 if (!up->port.irq) in m32r_sio_shutdown()
623 del_timer_sync(&up->timer); in m32r_sio_shutdown()
625 serial_unlink_irq_chain(up); in m32r_sio_shutdown()
637 struct uart_sio_port *up = in m32r_sio_set_termios() local
684 spin_lock_irqsave(&up->port.lock, flags); in m32r_sio_set_termios()
693 up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; in m32r_sio_set_termios()
695 up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; in m32r_sio_set_termios()
697 up->port.read_status_mask |= UART_LSR_BI; in m32r_sio_set_termios()
702 up->port.ignore_status_mask = 0; in m32r_sio_set_termios()
704 up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE; in m32r_sio_set_termios()
706 up->port.ignore_status_mask |= UART_LSR_BI; in m32r_sio_set_termios()
712 up->port.ignore_status_mask |= UART_LSR_OE; in m32r_sio_set_termios()
719 up->port.ignore_status_mask |= UART_LSR_DR; in m32r_sio_set_termios()
724 up->ier &= ~UART_IER_MSI; in m32r_sio_set_termios()
725 if (UART_ENABLE_MS(&up->port, termios->c_cflag)) in m32r_sio_set_termios()
726 up->ier |= UART_IER_MSI; in m32r_sio_set_termios()
728 serial_out(up, UART_IER, up->ier); in m32r_sio_set_termios()
730 spin_unlock_irqrestore(&up->port.lock, flags); in m32r_sio_set_termios()
739 m32r_sio_request_std_resource(struct uart_sio_port *up, struct resource **res) in m32r_sio_request_std_resource() argument
741 unsigned int size = 8 << up->port.regshift; in m32r_sio_request_std_resource()
747 switch (up->port.iotype) { in m32r_sio_request_std_resource()
749 if (up->port.mapbase) { in m32r_sio_request_std_resource()
751 *res = request_mem_region(up->port.mapbase, size, "serial"); in m32r_sio_request_std_resource()
753 start = up->port.mapbase; in m32r_sio_request_std_resource()
762 *res = request_region(up->port.iobase, size, "serial"); in m32r_sio_request_std_resource()
772 struct uart_sio_port *up = in m32r_sio_release_port() local
776 size <<= up->port.regshift; in m32r_sio_release_port()
778 switch (up->port.iotype) { in m32r_sio_release_port()
780 if (up->port.mapbase) { in m32r_sio_release_port()
784 iounmap(up->port.membase); in m32r_sio_release_port()
785 up->port.membase = NULL; in m32r_sio_release_port()
787 start = up->port.mapbase; in m32r_sio_release_port()
791 release_mem_region(start, 8 << up->port.regshift); in m32r_sio_release_port()
796 start = up->port.iobase; in m32r_sio_release_port()
800 release_region(start + offset, 8 << up->port.regshift); in m32r_sio_release_port()
810 struct uart_sio_port *up = in m32r_sio_request_port() local
815 ret = m32r_sio_request_std_resource(up, &res); in m32r_sio_request_port()
820 if (ret == 0 && up->port.flags & UPF_IOREMAP) { in m32r_sio_request_port()
823 up->port.membase = ioremap(up->port.mapbase, size); in m32r_sio_request_port()
824 if (!up->port.membase) in m32r_sio_request_port()
838 struct uart_sio_port *up = in m32r_sio_config_port() local
842 spin_lock_irqsave(&up->port.lock, flags); in m32r_sio_config_port()
844 up->port.fifosize = 1; in m32r_sio_config_port()
846 spin_unlock_irqrestore(&up->port.lock, flags); in m32r_sio_config_port()
879 struct uart_sio_port *up; in m32r_sio_init_ports() local
887 for (i = 0, up = m32r_sio_ports; i < UART_NR; i++, up++) { in m32r_sio_init_ports()
888 up->port.iobase = old_serial_port[i].port; in m32r_sio_init_ports()
889 up->port.irq = irq_canonicalize(old_serial_port[i].irq); in m32r_sio_init_ports()
890 up->port.uartclk = BAUD_RATE * 16; in m32r_sio_init_ports()
891 up->port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; in m32r_sio_init_ports()
892 up->port.membase = 0; in m32r_sio_init_ports()
893 up->port.iotype = 0; in m32r_sio_init_ports()
894 up->port.regshift = 0; in m32r_sio_init_ports()
895 up->port.ops = &m32r_sio_pops; in m32r_sio_init_ports()
906 struct uart_sio_port *up = &m32r_sio_ports[i]; in m32r_sio_register_ports() local
908 up->port.line = i; in m32r_sio_register_ports()
909 up->port.ops = &m32r_sio_pops; in m32r_sio_register_ports()
910 init_timer(&up->timer); in m32r_sio_register_ports()
911 up->timer.function = m32r_sio_timeout; in m32r_sio_register_ports()
913 uart_add_one_port(drv, &up->port); in m32r_sio_register_ports()
922 static void wait_for_xmitr(struct uart_sio_port *up) in wait_for_xmitr() argument
928 status = sio_in(up, SIOSTS); in wait_for_xmitr()
936 if (up->port.flags & UPF_CONS_FLOW) { in wait_for_xmitr()
945 struct uart_sio_port *up = in m32r_sio_console_putchar() local
948 wait_for_xmitr(up); in m32r_sio_console_putchar()
949 sio_out(up, SIOTXB, ch); in m32r_sio_console_putchar()
961 struct uart_sio_port *up = &m32r_sio_ports[co->index]; in m32r_sio_console_write() local
967 ier = sio_in(up, SIOTRCR); in m32r_sio_console_write()
968 sio_out(up, SIOTRCR, 0); in m32r_sio_console_write()
970 uart_console_write(&up->port, s, count, m32r_sio_console_putchar); in m32r_sio_console_write()
976 wait_for_xmitr(up); in m32r_sio_console_write()
977 sio_out(up, SIOTRCR, ier); in m32r_sio_console_write()