Lines Matching refs:port
56 static void atmel_start_rx(struct uart_port *port);
57 static void atmel_stop_rx(struct uart_port *port);
181 int (*prepare_rx)(struct uart_port *port);
182 int (*prepare_tx)(struct uart_port *port);
183 void (*schedule_rx)(struct uart_port *port);
184 void (*schedule_tx)(struct uart_port *port);
185 void (*release_rx)(struct uart_port *port);
186 void (*release_tx)(struct uart_port *port);
205 static inline u32 atmel_uart_readl(struct uart_port *port, u32 reg) in atmel_uart_readl() argument
207 return __raw_readl(port->membase + reg); in atmel_uart_readl()
210 static inline void atmel_uart_writel(struct uart_port *port, u32 reg, u32 value) in atmel_uart_writel() argument
212 __raw_writel(value, port->membase + reg); in atmel_uart_writel()
215 static inline u8 atmel_uart_read_char(struct uart_port *port) in atmel_uart_read_char() argument
217 return __raw_readb(port->membase + ATMEL_US_RHR); in atmel_uart_read_char()
220 static inline void atmel_uart_write_char(struct uart_port *port, u8 value) in atmel_uart_write_char() argument
222 __raw_writeb(value, port->membase + ATMEL_US_THR); in atmel_uart_write_char()
225 static inline int atmel_uart_is_half_duplex(struct uart_port *port) in atmel_uart_is_half_duplex() argument
227 return ((port->rs485.flags & SER_RS485_ENABLED) && in atmel_uart_is_half_duplex()
228 !(port->rs485.flags & SER_RS485_RX_DURING_TX)) || in atmel_uart_is_half_duplex()
229 (port->iso7816.flags & SER_ISO7816_ENABLED); in atmel_uart_is_half_duplex()
233 static bool atmel_use_pdc_rx(struct uart_port *port) in atmel_use_pdc_rx() argument
235 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_pdc_rx()
240 static bool atmel_use_pdc_tx(struct uart_port *port) in atmel_use_pdc_tx() argument
242 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_pdc_tx()
247 static bool atmel_use_pdc_rx(struct uart_port *port) in atmel_use_pdc_rx() argument
252 static bool atmel_use_pdc_tx(struct uart_port *port) in atmel_use_pdc_tx() argument
258 static bool atmel_use_dma_tx(struct uart_port *port) in atmel_use_dma_tx() argument
260 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_dma_tx()
265 static bool atmel_use_dma_rx(struct uart_port *port) in atmel_use_dma_rx() argument
267 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_dma_rx()
272 static bool atmel_use_fifo(struct uart_port *port) in atmel_use_fifo() argument
274 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_fifo()
287 static int atmel_config_rs485(struct uart_port *port, in atmel_config_rs485() argument
290 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_config_rs485()
294 atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); in atmel_config_rs485()
296 mode = atmel_uart_readl(port, ATMEL_US_MR); in atmel_config_rs485()
301 port->rs485 = *rs485conf; in atmel_config_rs485()
304 dev_dbg(port->dev, "Setting UART to RS485\n"); in atmel_config_rs485()
305 if (port->rs485.flags & SER_RS485_RX_DURING_TX) in atmel_config_rs485()
310 atmel_uart_writel(port, ATMEL_US_TTGR, in atmel_config_rs485()
314 dev_dbg(port->dev, "Setting UART to RS232\n"); in atmel_config_rs485()
315 if (atmel_use_pdc_tx(port)) in atmel_config_rs485()
321 atmel_uart_writel(port, ATMEL_US_MR, mode); in atmel_config_rs485()
324 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); in atmel_config_rs485()
329 static unsigned int atmel_calc_cd(struct uart_port *port, in atmel_calc_cd() argument
332 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_calc_cd()
342 static unsigned int atmel_calc_fidi(struct uart_port *port, in atmel_calc_fidi() argument
356 static int atmel_config_iso7816(struct uart_port *port, in atmel_config_iso7816() argument
359 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_config_iso7816()
365 atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); in atmel_config_iso7816()
367 mode = atmel_uart_readl(port, ATMEL_US_MR); in atmel_config_iso7816()
373 dev_err(port->dev, "ISO7816: Timeguard exceeding 255\n"); in atmel_config_iso7816()
386 dev_err(port->dev, "ISO7816: Type not supported\n"); in atmel_config_iso7816()
399 cd = atmel_calc_cd(port, iso7816conf); in atmel_config_iso7816()
400 fidi = atmel_calc_fidi(port, iso7816conf); in atmel_config_iso7816()
402 dev_warn(port->dev, "ISO7816 fidi = 0, Generator generates no signal\n"); in atmel_config_iso7816()
405 dev_err(port->dev, "ISO7816 fidi = %u, value not supported\n", fidi); in atmel_config_iso7816()
411 if (!(port->iso7816.flags & SER_ISO7816_ENABLED)) { in atmel_config_iso7816()
413 atmel_port->backup_mode = atmel_uart_readl(port, ATMEL_US_MR); in atmel_config_iso7816()
414 atmel_port->backup_brgr = atmel_uart_readl(port, ATMEL_US_BRGR); in atmel_config_iso7816()
417 atmel_uart_writel(port, ATMEL_US_TTGR, iso7816conf->tg); in atmel_config_iso7816()
418 atmel_uart_writel(port, ATMEL_US_BRGR, cd); in atmel_config_iso7816()
419 atmel_uart_writel(port, ATMEL_US_FIDI, fidi); in atmel_config_iso7816()
421 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXEN); in atmel_config_iso7816()
424 dev_dbg(port->dev, "Setting UART back to RS232\n"); in atmel_config_iso7816()
428 atmel_uart_writel(port, ATMEL_US_TTGR, 0); in atmel_config_iso7816()
429 atmel_uart_writel(port, ATMEL_US_BRGR, atmel_port->backup_brgr); in atmel_config_iso7816()
430 atmel_uart_writel(port, ATMEL_US_FIDI, 0x174); in atmel_config_iso7816()
432 if (atmel_use_pdc_tx(port)) in atmel_config_iso7816()
439 port->iso7816 = *iso7816conf; in atmel_config_iso7816()
441 atmel_uart_writel(port, ATMEL_US_MR, mode); in atmel_config_iso7816()
445 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); in atmel_config_iso7816()
453 static u_int atmel_tx_empty(struct uart_port *port) in atmel_tx_empty() argument
455 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_empty()
459 return (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXEMPTY) ? in atmel_tx_empty()
467 static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) in atmel_set_mctrl() argument
470 unsigned int mode = atmel_uart_readl(port, ATMEL_US_MR); in atmel_set_mctrl()
472 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_set_mctrl()
475 if (port->rs485.flags & SER_RS485_ENABLED) { in atmel_set_mctrl()
476 atmel_uart_writel(port, ATMEL_US_TTGR, in atmel_set_mctrl()
477 port->rs485.delay_rts_after_send); in atmel_set_mctrl()
507 atmel_uart_writel(port, ATMEL_US_CR, control); in atmel_set_mctrl()
518 atmel_uart_writel(port, ATMEL_US_MR, mode); in atmel_set_mctrl()
524 static u_int atmel_get_mctrl(struct uart_port *port) in atmel_get_mctrl() argument
526 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_get_mctrl()
529 status = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_get_mctrl()
549 static void atmel_stop_tx(struct uart_port *port) in atmel_stop_tx() argument
551 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_stop_tx()
553 if (atmel_use_pdc_tx(port)) { in atmel_stop_tx()
555 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); in atmel_stop_tx()
563 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS); in atmel_stop_tx()
567 atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); in atmel_stop_tx()
569 if (atmel_uart_is_half_duplex(port)) in atmel_stop_tx()
571 atmel_start_rx(port); in atmel_stop_tx()
578 static void atmel_start_tx(struct uart_port *port) in atmel_start_tx() argument
580 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_start_tx()
582 if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR) in atmel_start_tx()
588 if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port)) in atmel_start_tx()
589 if (atmel_uart_is_half_duplex(port)) in atmel_start_tx()
590 atmel_stop_rx(port); in atmel_start_tx()
592 if (atmel_use_pdc_tx(port)) in atmel_start_tx()
594 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); in atmel_start_tx()
597 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); in atmel_start_tx()
600 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN); in atmel_start_tx()
607 static void atmel_start_rx(struct uart_port *port) in atmel_start_rx() argument
610 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); in atmel_start_rx()
612 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXEN); in atmel_start_rx()
614 if (atmel_use_pdc_rx(port)) { in atmel_start_rx()
616 atmel_uart_writel(port, ATMEL_US_IER, in atmel_start_rx()
618 port->read_status_mask); in atmel_start_rx()
619 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN); in atmel_start_rx()
621 atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY); in atmel_start_rx()
628 static void atmel_stop_rx(struct uart_port *port) in atmel_stop_rx() argument
630 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXDIS); in atmel_stop_rx()
632 if (atmel_use_pdc_rx(port)) { in atmel_stop_rx()
634 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS); in atmel_stop_rx()
635 atmel_uart_writel(port, ATMEL_US_IDR, in atmel_stop_rx()
637 port->read_status_mask); in atmel_stop_rx()
639 atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXRDY); in atmel_stop_rx()
646 static void atmel_enable_ms(struct uart_port *port) in atmel_enable_ms() argument
648 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_enable_ms()
671 atmel_uart_writel(port, ATMEL_US_IER, ier); in atmel_enable_ms()
679 static void atmel_disable_ms(struct uart_port *port) in atmel_disable_ms() argument
681 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_disable_ms()
706 atmel_uart_writel(port, ATMEL_US_IDR, idr); in atmel_disable_ms()
712 static void atmel_break_ctl(struct uart_port *port, int break_state) in atmel_break_ctl() argument
716 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTBRK); in atmel_break_ctl()
719 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STPBRK); in atmel_break_ctl()
726 atmel_buffer_rx_char(struct uart_port *port, unsigned int status, in atmel_buffer_rx_char() argument
729 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_buffer_rx_char()
750 static void atmel_pdc_rxerr(struct uart_port *port, unsigned int status) in atmel_pdc_rxerr() argument
753 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); in atmel_pdc_rxerr()
758 port->icount.brk++; in atmel_pdc_rxerr()
761 port->icount.parity++; in atmel_pdc_rxerr()
763 port->icount.frame++; in atmel_pdc_rxerr()
765 port->icount.overrun++; in atmel_pdc_rxerr()
771 static void atmel_rx_chars(struct uart_port *port) in atmel_rx_chars() argument
773 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_chars()
776 status = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_rx_chars()
778 ch = atmel_uart_read_char(port); in atmel_rx_chars()
789 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); in atmel_rx_chars()
794 atmel_uart_writel(port, ATMEL_US_IER, in atmel_rx_chars()
804 atmel_uart_writel(port, ATMEL_US_IDR, in atmel_rx_chars()
811 atmel_buffer_rx_char(port, status, ch); in atmel_rx_chars()
812 status = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_rx_chars()
822 static void atmel_tx_chars(struct uart_port *port) in atmel_tx_chars() argument
824 struct circ_buf *xmit = &port->state->xmit; in atmel_tx_chars()
825 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_chars()
827 if (port->x_char && in atmel_tx_chars()
828 (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) { in atmel_tx_chars()
829 atmel_uart_write_char(port, port->x_char); in atmel_tx_chars()
830 port->icount.tx++; in atmel_tx_chars()
831 port->x_char = 0; in atmel_tx_chars()
833 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) in atmel_tx_chars()
836 while (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY) { in atmel_tx_chars()
837 atmel_uart_write_char(port, xmit->buf[xmit->tail]); in atmel_tx_chars()
839 port->icount.tx++; in atmel_tx_chars()
845 uart_write_wakeup(port); in atmel_tx_chars()
855 atmel_uart_writel(port, ATMEL_US_IER, in atmel_tx_chars()
858 if (atmel_uart_is_half_duplex(port)) in atmel_tx_chars()
866 struct uart_port *port = &atmel_port->uart; in atmel_complete_tx_dma() local
867 struct circ_buf *xmit = &port->state->xmit; in atmel_complete_tx_dma()
871 spin_lock_irqsave(&port->lock, flags); in atmel_complete_tx_dma()
878 port->icount.tx += atmel_port->tx_len; in atmel_complete_tx_dma()
887 uart_write_wakeup(port); in atmel_complete_tx_dma()
896 else if (atmel_uart_is_half_duplex(port)) { in atmel_complete_tx_dma()
902 atmel_uart_writel(port, ATMEL_US_IER, in atmel_complete_tx_dma()
906 spin_unlock_irqrestore(&port->lock, flags); in atmel_complete_tx_dma()
909 static void atmel_release_tx_dma(struct uart_port *port) in atmel_release_tx_dma() argument
911 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_tx_dma()
917 dma_unmap_sg(port->dev, &atmel_port->sg_tx, 1, in atmel_release_tx_dma()
929 static void atmel_tx_dma(struct uart_port *port) in atmel_tx_dma() argument
931 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_dma()
932 struct circ_buf *xmit = &port->state->xmit; in atmel_tx_dma()
943 if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) { in atmel_tx_dma()
997 dev_err(port->dev, "Failed to send via dma!\n"); in atmel_tx_dma()
1001 dma_sync_sg_for_device(port->dev, sg_tx, 1, DMA_TO_DEVICE); in atmel_tx_dma()
1008 dev_err(port->dev, "dma_submit_error %d\n", in atmel_tx_dma()
1017 uart_write_wakeup(port); in atmel_tx_dma()
1020 static int atmel_prepare_tx_dma(struct uart_port *port) in atmel_prepare_tx_dma() argument
1022 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_tx_dma()
1023 struct device *mfd_dev = port->dev->parent; in atmel_prepare_tx_dma()
1034 dev_info(port->dev, "using %s for tx DMA transfers\n", in atmel_prepare_tx_dma()
1040 BUG_ON(!PAGE_ALIGNED(port->state->xmit.buf)); in atmel_prepare_tx_dma()
1042 virt_to_page(port->state->xmit.buf), in atmel_prepare_tx_dma()
1044 offset_in_page(port->state->xmit.buf)); in atmel_prepare_tx_dma()
1045 nent = dma_map_sg(port->dev, in atmel_prepare_tx_dma()
1051 dev_dbg(port->dev, "need to release resource of dma\n"); in atmel_prepare_tx_dma()
1054 dev_dbg(port->dev, "%s: mapped %d@%p to %pad\n", __func__, in atmel_prepare_tx_dma()
1056 port->state->xmit.buf, in atmel_prepare_tx_dma()
1066 config.dst_addr = port->mapbase + ATMEL_US_THR; in atmel_prepare_tx_dma()
1072 dev_err(port->dev, "DMA tx slave configuration failed\n"); in atmel_prepare_tx_dma()
1079 dev_err(port->dev, "TX channel not available, switch to pio\n"); in atmel_prepare_tx_dma()
1082 atmel_release_tx_dma(port); in atmel_prepare_tx_dma()
1088 struct uart_port *port = arg; in atmel_complete_rx_dma() local
1089 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_complete_rx_dma()
1094 static void atmel_release_rx_dma(struct uart_port *port) in atmel_release_rx_dma() argument
1096 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_rx_dma()
1102 dma_unmap_sg(port->dev, &atmel_port->sg_rx, 1, in atmel_release_rx_dma()
1111 static void atmel_rx_from_dma(struct uart_port *port) in atmel_rx_from_dma() argument
1113 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_from_dma()
1114 struct tty_port *tport = &port->state->port; in atmel_rx_from_dma()
1123 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); in atmel_rx_from_dma()
1129 dev_dbg(port->dev, "Get residue error, restart tasklet\n"); in atmel_rx_from_dma()
1130 atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); in atmel_rx_from_dma()
1136 dma_sync_sg_for_cpu(port->dev, in atmel_rx_from_dma()
1167 port->icount.rx += count; in atmel_rx_from_dma()
1179 port->icount.rx += count; in atmel_rx_from_dma()
1183 dma_sync_sg_for_device(port->dev, in atmel_rx_from_dma()
1192 spin_unlock(&port->lock); in atmel_rx_from_dma()
1194 spin_lock(&port->lock); in atmel_rx_from_dma()
1196 atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); in atmel_rx_from_dma()
1199 static int atmel_prepare_rx_dma(struct uart_port *port) in atmel_prepare_rx_dma() argument
1201 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_rx_dma()
1202 struct device *mfd_dev = port->dev->parent; in atmel_prepare_rx_dma()
1217 dev_info(port->dev, "using %s for rx DMA transfers\n", in atmel_prepare_rx_dma()
1228 nent = dma_map_sg(port->dev, in atmel_prepare_rx_dma()
1234 dev_dbg(port->dev, "need to release resource of dma\n"); in atmel_prepare_rx_dma()
1237 dev_dbg(port->dev, "%s: mapped %d@%p to %pad\n", __func__, in atmel_prepare_rx_dma()
1247 config.src_addr = port->mapbase + ATMEL_US_RHR; in atmel_prepare_rx_dma()
1253 dev_err(port->dev, "DMA rx slave configuration failed\n"); in atmel_prepare_rx_dma()
1267 dev_err(port->dev, "Preparing DMA cyclic failed\n"); in atmel_prepare_rx_dma()
1271 desc->callback_param = port; in atmel_prepare_rx_dma()
1275 dev_err(port->dev, "dma_submit_error %d\n", in atmel_prepare_rx_dma()
1285 dev_err(port->dev, "RX channel not available, switch to pio\n"); in atmel_prepare_rx_dma()
1288 atmel_release_rx_dma(port); in atmel_prepare_rx_dma()
1296 struct uart_port *port = &atmel_port->uart; in atmel_uart_timer_callback() local
1301 jiffies + uart_poll_timeout(port)); in atmel_uart_timer_callback()
1309 atmel_handle_receive(struct uart_port *port, unsigned int pending) in atmel_handle_receive() argument
1311 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_handle_receive()
1313 if (atmel_use_pdc_rx(port)) { in atmel_handle_receive()
1322 atmel_uart_writel(port, ATMEL_US_IDR, in atmel_handle_receive()
1330 atmel_pdc_rxerr(port, pending); in atmel_handle_receive()
1333 if (atmel_use_dma_rx(port)) { in atmel_handle_receive()
1335 atmel_uart_writel(port, ATMEL_US_IDR, in atmel_handle_receive()
1344 atmel_rx_chars(port); in atmel_handle_receive()
1350 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); in atmel_handle_receive()
1351 atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXBRK); in atmel_handle_receive()
1360 atmel_handle_transmit(struct uart_port *port, unsigned int pending) in atmel_handle_transmit() argument
1362 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_handle_transmit()
1365 atmel_uart_writel(port, ATMEL_US_IDR, in atmel_handle_transmit()
1370 if (!(atmel_uart_readl(port, ATMEL_US_CSR) in atmel_handle_transmit()
1372 dev_warn(port->dev, "Should start RX, but TX fifo is not empty\n"); in atmel_handle_transmit()
1375 atmel_start_rx(port); in atmel_handle_transmit()
1386 atmel_handle_status(struct uart_port *port, unsigned int pending, in atmel_handle_status() argument
1389 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_handle_status()
1401 port->icount.rng++; in atmel_handle_status()
1403 port->icount.dsr++; in atmel_handle_status()
1405 uart_handle_dcd_change(port, !(status & ATMEL_US_DCD)); in atmel_handle_status()
1407 uart_handle_cts_change(port, !(status & ATMEL_US_CTS)); in atmel_handle_status()
1409 wake_up_interruptible(&port->state->port.delta_msr_wait); in atmel_handle_status()
1414 dev_dbg(port->dev, "ISO7816 ERROR (0x%08x)\n", pending); in atmel_handle_status()
1422 struct uart_port *port = dev_id; in atmel_interrupt() local
1423 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_interrupt()
1429 status = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_interrupt()
1430 mask = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_interrupt()
1438 atmel_uart_writel(port, ATMEL_US_IDR, mask); in atmel_interrupt()
1443 atmel_handle_receive(port, pending); in atmel_interrupt()
1444 atmel_handle_status(port, pending, status); in atmel_interrupt()
1445 atmel_handle_transmit(port, pending); in atmel_interrupt()
1453 static void atmel_release_tx_pdc(struct uart_port *port) in atmel_release_tx_pdc() argument
1455 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_tx_pdc()
1458 dma_unmap_single(port->dev, in atmel_release_tx_pdc()
1467 static void atmel_tx_pdc(struct uart_port *port) in atmel_tx_pdc() argument
1469 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_pdc()
1470 struct circ_buf *xmit = &port->state->xmit; in atmel_tx_pdc()
1475 if (atmel_uart_readl(port, ATMEL_PDC_TCR)) in atmel_tx_pdc()
1481 port->icount.tx += pdc->ofs; in atmel_tx_pdc()
1487 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); in atmel_tx_pdc()
1489 if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) { in atmel_tx_pdc()
1490 dma_sync_single_for_device(port->dev, in atmel_tx_pdc()
1498 atmel_uart_writel(port, ATMEL_PDC_TPR, in atmel_tx_pdc()
1500 atmel_uart_writel(port, ATMEL_PDC_TCR, count); in atmel_tx_pdc()
1502 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); in atmel_tx_pdc()
1504 atmel_uart_writel(port, ATMEL_US_IER, in atmel_tx_pdc()
1507 if (atmel_uart_is_half_duplex(port)) { in atmel_tx_pdc()
1509 atmel_start_rx(port); in atmel_tx_pdc()
1514 uart_write_wakeup(port); in atmel_tx_pdc()
1517 static int atmel_prepare_tx_pdc(struct uart_port *port) in atmel_prepare_tx_pdc() argument
1519 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_tx_pdc()
1521 struct circ_buf *xmit = &port->state->xmit; in atmel_prepare_tx_pdc()
1524 pdc->dma_addr = dma_map_single(port->dev, in atmel_prepare_tx_pdc()
1534 static void atmel_rx_from_ring(struct uart_port *port) in atmel_rx_from_ring() argument
1536 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_from_ring()
1551 port->icount.rx++; in atmel_rx_from_ring()
1565 port->icount.brk++; in atmel_rx_from_ring()
1566 if (uart_handle_break(port)) in atmel_rx_from_ring()
1570 port->icount.parity++; in atmel_rx_from_ring()
1572 port->icount.frame++; in atmel_rx_from_ring()
1574 port->icount.overrun++; in atmel_rx_from_ring()
1576 status &= port->read_status_mask; in atmel_rx_from_ring()
1587 if (uart_handle_sysrq_char(port, c.ch)) in atmel_rx_from_ring()
1590 uart_insert_char(port, status, ATMEL_US_OVRE, c.ch, flg); in atmel_rx_from_ring()
1597 spin_unlock(&port->lock); in atmel_rx_from_ring()
1598 tty_flip_buffer_push(&port->state->port); in atmel_rx_from_ring()
1599 spin_lock(&port->lock); in atmel_rx_from_ring()
1602 static void atmel_release_rx_pdc(struct uart_port *port) in atmel_release_rx_pdc() argument
1604 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_rx_pdc()
1610 dma_unmap_single(port->dev, in atmel_release_rx_pdc()
1618 static void atmel_rx_from_pdc(struct uart_port *port) in atmel_rx_from_pdc() argument
1620 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_from_pdc()
1621 struct tty_port *tport = &port->state->port; in atmel_rx_from_pdc()
1630 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); in atmel_rx_from_pdc()
1633 head = atmel_uart_readl(port, ATMEL_PDC_RPR) - pdc->dma_addr; in atmel_rx_from_pdc()
1649 dma_sync_single_for_cpu(port->dev, pdc->dma_addr, in atmel_rx_from_pdc()
1663 dma_sync_single_for_device(port->dev, pdc->dma_addr, in atmel_rx_from_pdc()
1666 port->icount.rx += count; in atmel_rx_from_pdc()
1676 atmel_uart_writel(port, ATMEL_PDC_RNPR, pdc->dma_addr); in atmel_rx_from_pdc()
1677 atmel_uart_writel(port, ATMEL_PDC_RNCR, pdc->dma_size); in atmel_rx_from_pdc()
1688 spin_unlock(&port->lock); in atmel_rx_from_pdc()
1690 spin_lock(&port->lock); in atmel_rx_from_pdc()
1692 atmel_uart_writel(port, ATMEL_US_IER, in atmel_rx_from_pdc()
1696 static int atmel_prepare_rx_pdc(struct uart_port *port) in atmel_prepare_rx_pdc() argument
1698 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_rx_pdc()
1707 dma_unmap_single(port->dev, in atmel_prepare_rx_pdc()
1716 pdc->dma_addr = dma_map_single(port->dev, in atmel_prepare_rx_pdc()
1726 atmel_uart_writel(port, ATMEL_PDC_RPR, atmel_port->pdc_rx[0].dma_addr); in atmel_prepare_rx_pdc()
1727 atmel_uart_writel(port, ATMEL_PDC_RCR, PDC_BUFFER_SIZE); in atmel_prepare_rx_pdc()
1729 atmel_uart_writel(port, ATMEL_PDC_RNPR, in atmel_prepare_rx_pdc()
1731 atmel_uart_writel(port, ATMEL_PDC_RNCR, PDC_BUFFER_SIZE); in atmel_prepare_rx_pdc()
1743 struct uart_port *port = &atmel_port->uart; in atmel_tasklet_rx_func() local
1746 spin_lock(&port->lock); in atmel_tasklet_rx_func()
1747 atmel_port->schedule_rx(port); in atmel_tasklet_rx_func()
1748 spin_unlock(&port->lock); in atmel_tasklet_rx_func()
1755 struct uart_port *port = &atmel_port->uart; in atmel_tasklet_tx_func() local
1758 spin_lock(&port->lock); in atmel_tasklet_tx_func()
1759 atmel_port->schedule_tx(port); in atmel_tasklet_tx_func()
1760 spin_unlock(&port->lock); in atmel_tasklet_tx_func()
1796 static void atmel_set_ops(struct uart_port *port) in atmel_set_ops() argument
1798 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_set_ops()
1800 if (atmel_use_dma_rx(port)) { in atmel_set_ops()
1804 } else if (atmel_use_pdc_rx(port)) { in atmel_set_ops()
1814 if (atmel_use_dma_tx(port)) { in atmel_set_ops()
1818 } else if (atmel_use_pdc_tx(port)) { in atmel_set_ops()
1832 static void atmel_get_ip_name(struct uart_port *port) in atmel_get_ip_name() argument
1834 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_get_ip_name()
1835 int name = atmel_uart_readl(port, ATMEL_US_NAME); in atmel_get_ip_name()
1853 dev_dbg(port->dev, "Uart with hw timer"); in atmel_get_ip_name()
1857 dev_dbg(port->dev, "Usart\n"); in atmel_get_ip_name()
1861 version = atmel_uart_readl(port, ATMEL_US_VERSION); in atmel_get_ip_name()
1878 dev_dbg(port->dev, "Dbgu or uart without hw timer\n"); in atmel_get_ip_name()
1881 version = atmel_uart_readl(port, ATMEL_US_VERSION); in atmel_get_ip_name()
1886 dev_dbg(port->dev, "This version is usart\n"); in atmel_get_ip_name()
1893 dev_dbg(port->dev, "This version is uart\n"); in atmel_get_ip_name()
1896 dev_err(port->dev, "Not supported ip name nor version, set to uart\n"); in atmel_get_ip_name()
1904 static int atmel_startup(struct uart_port *port) in atmel_startup() argument
1906 struct platform_device *pdev = to_platform_device(port->dev); in atmel_startup()
1907 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_startup()
1915 atmel_uart_writel(port, ATMEL_US_IDR, -1); in atmel_startup()
1921 retval = request_irq(port->irq, atmel_interrupt, in atmel_startup()
1923 dev_name(&pdev->dev), port); in atmel_startup()
1925 dev_err(port->dev, "atmel_startup - Can't get irq\n"); in atmel_startup()
1937 atmel_set_ops(port); in atmel_startup()
1940 retval = atmel_port->prepare_rx(port); in atmel_startup()
1942 atmel_set_ops(port); in atmel_startup()
1946 retval = atmel_port->prepare_tx(port); in atmel_startup()
1948 atmel_set_ops(port); in atmel_startup()
1959 atmel_uart_writel(port, ATMEL_US_CR, in atmel_startup()
1964 if (atmel_use_dma_tx(port)) in atmel_startup()
1974 atmel_uart_writel(port, ATMEL_US_FMR, fmr); in atmel_startup()
1978 atmel_port->irq_status_prev = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_startup()
1983 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); in atmel_startup()
1985 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); in atmel_startup()
1990 if (atmel_use_pdc_rx(port)) { in atmel_startup()
1994 jiffies + uart_poll_timeout(port)); in atmel_startup()
1997 atmel_uart_writel(port, atmel_port->rtor, in atmel_startup()
1999 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); in atmel_startup()
2001 atmel_uart_writel(port, ATMEL_US_IER, in atmel_startup()
2005 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN); in atmel_startup()
2006 } else if (atmel_use_dma_rx(port)) { in atmel_startup()
2010 jiffies + uart_poll_timeout(port)); in atmel_startup()
2013 atmel_uart_writel(port, atmel_port->rtor, in atmel_startup()
2015 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); in atmel_startup()
2017 atmel_uart_writel(port, ATMEL_US_IER, in atmel_startup()
2022 atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY); in atmel_startup()
2032 static void atmel_flush_buffer(struct uart_port *port) in atmel_flush_buffer() argument
2034 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_flush_buffer()
2036 if (atmel_use_pdc_tx(port)) { in atmel_flush_buffer()
2037 atmel_uart_writel(port, ATMEL_PDC_TCR, 0); in atmel_flush_buffer()
2050 static void atmel_shutdown(struct uart_port *port) in atmel_shutdown() argument
2052 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_shutdown()
2055 atmel_disable_ms(port); in atmel_shutdown()
2058 atmel_uart_writel(port, ATMEL_US_IDR, -1); in atmel_shutdown()
2070 synchronize_irq(port->irq); in atmel_shutdown()
2083 atmel_stop_rx(port); in atmel_shutdown()
2084 atmel_stop_tx(port); in atmel_shutdown()
2086 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); in atmel_shutdown()
2092 atmel_port->release_rx(port); in atmel_shutdown()
2094 atmel_port->release_tx(port); in atmel_shutdown()
2105 free_irq(port->irq, port); in atmel_shutdown()
2107 atmel_flush_buffer(port); in atmel_shutdown()
2113 static void atmel_serial_pm(struct uart_port *port, unsigned int state, in atmel_serial_pm() argument
2116 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_pm()
2127 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->backup_imr); in atmel_serial_pm()
2131 atmel_port->backup_imr = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_serial_pm()
2132 atmel_uart_writel(port, ATMEL_US_IDR, -1); in atmel_serial_pm()
2141 dev_err(port->dev, "atmel_serial: unknown pm %d\n", state); in atmel_serial_pm()
2148 static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, in atmel_set_termios() argument
2151 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_set_termios()
2156 mode = old_mode = atmel_uart_readl(port, ATMEL_US_MR); in atmel_set_termios()
2162 baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16); in atmel_set_termios()
2199 spin_lock_irqsave(&port->lock, flags); in atmel_set_termios()
2201 port->read_status_mask = ATMEL_US_OVRE; in atmel_set_termios()
2203 port->read_status_mask |= (ATMEL_US_FRAME | ATMEL_US_PARE); in atmel_set_termios()
2205 port->read_status_mask |= ATMEL_US_RXBRK; in atmel_set_termios()
2207 if (atmel_use_pdc_rx(port)) in atmel_set_termios()
2209 atmel_uart_writel(port, ATMEL_US_IER, port->read_status_mask); in atmel_set_termios()
2214 port->ignore_status_mask = 0; in atmel_set_termios()
2216 port->ignore_status_mask |= (ATMEL_US_FRAME | ATMEL_US_PARE); in atmel_set_termios()
2218 port->ignore_status_mask |= ATMEL_US_RXBRK; in atmel_set_termios()
2224 port->ignore_status_mask |= ATMEL_US_OVRE; in atmel_set_termios()
2229 uart_update_timeout(port, termios->c_cflag, baud); in atmel_set_termios()
2236 imr = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_set_termios()
2237 atmel_uart_writel(port, ATMEL_US_IDR, -1); in atmel_set_termios()
2240 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXDIS); in atmel_set_termios()
2244 if (port->rs485.flags & SER_RS485_ENABLED) { in atmel_set_termios()
2245 atmel_uart_writel(port, ATMEL_US_TTGR, in atmel_set_termios()
2246 port->rs485.delay_rts_after_send); in atmel_set_termios()
2248 } else if (port->iso7816.flags & SER_ISO7816_ENABLED) { in atmel_set_termios()
2249 atmel_uart_writel(port, ATMEL_US_TTGR, port->iso7816.tg); in atmel_set_termios()
2254 if ((port->iso7816.flags & SER_ISO7816_T_PARAM) in atmel_set_termios()
2261 if (atmel_use_fifo(port) && in atmel_set_termios()
2301 div = DIV_ROUND_CLOSEST(port->uartclk, baud * 2); in atmel_set_termios()
2305 cd = uart_get_divisor(port, baud); in atmel_set_termios()
2314 if (!(port->iso7816.flags & SER_ISO7816_ENABLED)) in atmel_set_termios()
2315 atmel_uart_writel(port, ATMEL_US_BRGR, quot); in atmel_set_termios()
2318 atmel_uart_writel(port, ATMEL_US_MR, mode); in atmel_set_termios()
2335 atmel_uart_writel(port, ATMEL_US_CR, rts_state); in atmel_set_termios()
2338 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); in atmel_set_termios()
2339 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); in atmel_set_termios()
2343 atmel_uart_writel(port, ATMEL_US_IER, imr); in atmel_set_termios()
2346 if (UART_ENABLE_MS(port, termios->c_cflag)) in atmel_set_termios()
2347 atmel_enable_ms(port); in atmel_set_termios()
2349 atmel_disable_ms(port); in atmel_set_termios()
2351 spin_unlock_irqrestore(&port->lock, flags); in atmel_set_termios()
2354 static void atmel_set_ldisc(struct uart_port *port, struct ktermios *termios) in atmel_set_ldisc() argument
2357 port->flags |= UPF_HARDPPS_CD; in atmel_set_ldisc()
2358 spin_lock_irq(&port->lock); in atmel_set_ldisc()
2359 atmel_enable_ms(port); in atmel_set_ldisc()
2360 spin_unlock_irq(&port->lock); in atmel_set_ldisc()
2362 port->flags &= ~UPF_HARDPPS_CD; in atmel_set_ldisc()
2363 if (!UART_ENABLE_MS(port, termios->c_cflag)) { in atmel_set_ldisc()
2364 spin_lock_irq(&port->lock); in atmel_set_ldisc()
2365 atmel_disable_ms(port); in atmel_set_ldisc()
2366 spin_unlock_irq(&port->lock); in atmel_set_ldisc()
2374 static const char *atmel_type(struct uart_port *port) in atmel_type() argument
2376 return (port->type == PORT_ATMEL) ? "ATMEL_SERIAL" : NULL; in atmel_type()
2382 static void atmel_release_port(struct uart_port *port) in atmel_release_port() argument
2384 struct platform_device *mpdev = to_platform_device(port->dev->parent); in atmel_release_port()
2387 release_mem_region(port->mapbase, size); in atmel_release_port()
2389 if (port->flags & UPF_IOREMAP) { in atmel_release_port()
2390 iounmap(port->membase); in atmel_release_port()
2391 port->membase = NULL; in atmel_release_port()
2398 static int atmel_request_port(struct uart_port *port) in atmel_request_port() argument
2400 struct platform_device *mpdev = to_platform_device(port->dev->parent); in atmel_request_port()
2403 if (!request_mem_region(port->mapbase, size, "atmel_serial")) in atmel_request_port()
2406 if (port->flags & UPF_IOREMAP) { in atmel_request_port()
2407 port->membase = ioremap(port->mapbase, size); in atmel_request_port()
2408 if (port->membase == NULL) { in atmel_request_port()
2409 release_mem_region(port->mapbase, size); in atmel_request_port()
2420 static void atmel_config_port(struct uart_port *port, int flags) in atmel_config_port() argument
2423 port->type = PORT_ATMEL; in atmel_config_port()
2424 atmel_request_port(port); in atmel_config_port()
2431 static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser) in atmel_verify_port() argument
2436 if (port->irq != ser->irq) in atmel_verify_port()
2440 if (port->uartclk / 16 != ser->baud_base) in atmel_verify_port()
2442 if (port->mapbase != (unsigned long)ser->iomem_base) in atmel_verify_port()
2444 if (port->iobase != ser->port) in atmel_verify_port()
2452 static int atmel_poll_get_char(struct uart_port *port) in atmel_poll_get_char() argument
2454 while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_RXRDY)) in atmel_poll_get_char()
2457 return atmel_uart_read_char(port); in atmel_poll_get_char()
2460 static void atmel_poll_put_char(struct uart_port *port, unsigned char ch) in atmel_poll_put_char() argument
2462 while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) in atmel_poll_put_char()
2465 atmel_uart_write_char(port, ch); in atmel_poll_put_char()
2502 struct uart_port *port = &atmel_port->uart; in atmel_init_port() local
2506 atmel_set_ops(port); in atmel_init_port()
2508 port->iotype = UPIO_MEM; in atmel_init_port()
2509 port->flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP; in atmel_init_port()
2510 port->ops = &atmel_pops; in atmel_init_port()
2511 port->fifosize = 1; in atmel_init_port()
2512 port->dev = &pdev->dev; in atmel_init_port()
2513 port->mapbase = mpdev->resource[0].start; in atmel_init_port()
2514 port->irq = mpdev->resource[1].start; in atmel_init_port()
2515 port->rs485_config = atmel_config_rs485; in atmel_init_port()
2516 port->iso7816_config = atmel_config_iso7816; in atmel_init_port()
2517 port->membase = NULL; in atmel_init_port()
2521 ret = uart_get_rs485_mode(port); in atmel_init_port()
2539 port->uartclk = clk_get_rate(atmel_port->clk); in atmel_init_port()
2548 if (atmel_uart_is_half_duplex(port)) in atmel_init_port()
2550 else if (atmel_use_pdc_tx(port)) { in atmel_init_port()
2551 port->fifosize = PDC_BUFFER_SIZE; in atmel_init_port()
2561 static void atmel_console_putchar(struct uart_port *port, int ch) in atmel_console_putchar() argument
2563 while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) in atmel_console_putchar()
2565 atmel_uart_write_char(port, ch); in atmel_console_putchar()
2573 struct uart_port *port = &atmel_ports[co->index].uart; in atmel_console_write() local
2574 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_console_write()
2581 imr = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_console_write()
2582 atmel_uart_writel(port, ATMEL_US_IDR, in atmel_console_write()
2586 pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN; in atmel_console_write()
2587 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); in atmel_console_write()
2590 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN); in atmel_console_write()
2593 uart_console_write(port, s, count, atmel_console_putchar); in atmel_console_write()
2600 status = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_console_write()
2605 atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); in atmel_console_write()
2608 atmel_uart_writel(port, ATMEL_US_IER, imr); in atmel_console_write()
2615 static void __init atmel_console_get_options(struct uart_port *port, int *baud, in atmel_console_get_options() argument
2624 quot = atmel_uart_readl(port, ATMEL_US_BRGR) & ATMEL_US_CD; in atmel_console_get_options()
2628 mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_CHRL; in atmel_console_get_options()
2634 mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_PAR; in atmel_console_get_options()
2646 *baud = port->uartclk / (16 * (quot - 1)); in atmel_console_get_options()
2652 struct uart_port *port = &atmel_ports[co->index].uart; in atmel_console_setup() local
2653 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_console_setup()
2659 if (port->membase == NULL) { in atmel_console_setup()
2668 atmel_uart_writel(port, ATMEL_US_IDR, -1); in atmel_console_setup()
2669 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); in atmel_console_setup()
2670 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); in atmel_console_setup()
2676 atmel_console_get_options(port, &baud, &parity, &bits); in atmel_console_setup()
2678 return uart_set_options(port, co, baud, parity, bits, flow); in atmel_console_setup()
2722 struct uart_port *port = platform_get_drvdata(pdev); in atmel_serial_suspend() local
2723 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_suspend()
2725 if (uart_console(port) && console_suspend_enabled) { in atmel_serial_suspend()
2727 while (!(atmel_uart_readl(port, ATMEL_US_CSR) & in atmel_serial_suspend()
2732 if (uart_console(port) && !console_suspend_enabled) { in atmel_serial_suspend()
2736 atmel_port->cache.mr = atmel_uart_readl(port, ATMEL_US_MR); in atmel_serial_suspend()
2737 atmel_port->cache.imr = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_serial_suspend()
2738 atmel_port->cache.brgr = atmel_uart_readl(port, ATMEL_US_BRGR); in atmel_serial_suspend()
2739 atmel_port->cache.rtor = atmel_uart_readl(port, in atmel_serial_suspend()
2741 atmel_port->cache.ttgr = atmel_uart_readl(port, ATMEL_US_TTGR); in atmel_serial_suspend()
2742 atmel_port->cache.fmr = atmel_uart_readl(port, ATMEL_US_FMR); in atmel_serial_suspend()
2743 atmel_port->cache.fimr = atmel_uart_readl(port, ATMEL_US_FIMR); in atmel_serial_suspend()
2757 uart_suspend_port(&atmel_uart, port); in atmel_serial_suspend()
2764 struct uart_port *port = platform_get_drvdata(pdev); in atmel_serial_resume() local
2765 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_resume()
2768 if (uart_console(port) && !console_suspend_enabled) { in atmel_serial_resume()
2769 atmel_uart_writel(port, ATMEL_US_MR, atmel_port->cache.mr); in atmel_serial_resume()
2770 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->cache.imr); in atmel_serial_resume()
2771 atmel_uart_writel(port, ATMEL_US_BRGR, atmel_port->cache.brgr); in atmel_serial_resume()
2772 atmel_uart_writel(port, atmel_port->rtor, in atmel_serial_resume()
2774 atmel_uart_writel(port, ATMEL_US_TTGR, atmel_port->cache.ttgr); in atmel_serial_resume()
2777 atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_FIFOEN | in atmel_serial_resume()
2779 atmel_uart_writel(port, ATMEL_US_FMR, in atmel_serial_resume()
2781 atmel_uart_writel(port, ATMEL_US_FIER, in atmel_serial_resume()
2784 atmel_start_rx(port); in atmel_serial_resume()
2789 atmel_handle_receive(port, atmel_port->pending); in atmel_serial_resume()
2790 atmel_handle_status(port, atmel_port->pending, in atmel_serial_resume()
2792 atmel_handle_transmit(port, atmel_port->pending); in atmel_serial_resume()
2798 uart_resume_port(&atmel_uart, port); in atmel_serial_resume()
2986 struct uart_port *port = platform_get_drvdata(pdev); in atmel_serial_remove() local
2987 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_remove()
2995 ret = uart_remove_one_port(&atmel_uart, port); in atmel_serial_remove()
3001 clear_bit(port->line, atmel_ports_in_use); in atmel_serial_remove()