Lines Matching refs:atmel_port
242 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_pdc_rx() local
244 return atmel_port->use_pdc_rx; in atmel_use_pdc_rx()
249 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_pdc_tx() local
251 return atmel_port->use_pdc_tx; in atmel_use_pdc_tx()
267 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_dma_tx() local
269 return atmel_port->use_dma_tx; in atmel_use_dma_tx()
274 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_dma_rx() local
276 return atmel_port->use_dma_rx; in atmel_use_dma_rx()
281 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_use_fifo() local
283 return atmel_port->fifo_size; in atmel_use_fifo()
286 static void atmel_tasklet_schedule(struct atmel_uart_port *atmel_port, in atmel_tasklet_schedule() argument
289 if (!atomic_read(&atmel_port->tasklet_shutdown)) in atmel_tasklet_schedule()
297 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_config_rs485() local
301 atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); in atmel_config_rs485()
308 atmel_port->tx_done_mask = ATMEL_US_TXRDY; in atmel_config_rs485()
310 atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; in atmel_config_rs485()
319 atmel_port->tx_done_mask = ATMEL_US_ENDTX | in atmel_config_rs485()
322 atmel_port->tx_done_mask = ATMEL_US_TXRDY; in atmel_config_rs485()
327 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); in atmel_config_rs485()
335 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_calc_cd() local
339 mck_rate = (u64)clk_get_rate(atmel_port->clk); in atmel_calc_cd()
362 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_config_iso7816() local
368 atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); in atmel_config_iso7816()
406 } else if (fidi < atmel_port->fidi_min in atmel_config_iso7816()
407 || fidi > atmel_port->fidi_max) { in atmel_config_iso7816()
416 atmel_port->backup_mode = atmel_uart_readl(port, ATMEL_US_MR); in atmel_config_iso7816()
417 atmel_port->backup_brgr = atmel_uart_readl(port, ATMEL_US_BRGR); in atmel_config_iso7816()
425 atmel_port->tx_done_mask = ATMEL_US_TXEMPTY | ATMEL_US_NACK | ATMEL_US_ITERATION; in atmel_config_iso7816()
429 mode = atmel_port->backup_mode; in atmel_config_iso7816()
432 atmel_uart_writel(port, ATMEL_US_BRGR, atmel_port->backup_brgr); in atmel_config_iso7816()
436 atmel_port->tx_done_mask = ATMEL_US_ENDTX | in atmel_config_iso7816()
439 atmel_port->tx_done_mask = ATMEL_US_TXRDY; in atmel_config_iso7816()
448 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); in atmel_config_iso7816()
458 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_empty() local
460 if (atmel_port->tx_stopped) in atmel_tx_empty()
475 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_set_mctrl() local
512 mctrl_gpio_set(atmel_port->gpios, mctrl); in atmel_set_mctrl()
529 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_get_mctrl() local
546 return mctrl_gpio_get(atmel_port->gpios, &ret); in atmel_get_mctrl()
554 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_stop_tx() local
567 atmel_port->tx_stopped = true; in atmel_stop_tx()
570 atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); in atmel_stop_tx()
573 if (!atomic_read(&atmel_port->tasklet_shutdown)) in atmel_stop_tx()
583 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_start_tx() local
600 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); in atmel_start_tx()
604 atmel_port->tx_stopped = false; in atmel_start_tx()
651 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_enable_ms() local
657 if (atmel_port->ms_irq_enabled) in atmel_enable_ms()
660 atmel_port->ms_irq_enabled = true; in atmel_enable_ms()
662 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS)) in atmel_enable_ms()
665 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DSR)) in atmel_enable_ms()
668 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_RI)) in atmel_enable_ms()
671 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DCD)) in atmel_enable_ms()
676 mctrl_gpio_enable_ms(atmel_port->gpios); in atmel_enable_ms()
684 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_disable_ms() local
690 if (!atmel_port->ms_irq_enabled) in atmel_disable_ms()
693 atmel_port->ms_irq_enabled = false; in atmel_disable_ms()
695 mctrl_gpio_disable_ms(atmel_port->gpios); in atmel_disable_ms()
697 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS)) in atmel_disable_ms()
700 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DSR)) in atmel_disable_ms()
703 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_RI)) in atmel_disable_ms()
706 if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DCD)) in atmel_disable_ms()
732 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_buffer_rx_char() local
733 struct circ_buf *ring = &atmel_port->rx_ring; in atmel_buffer_rx_char()
776 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_chars() local
789 || atmel_port->break_active)) { in atmel_rx_chars()
795 && !atmel_port->break_active) { in atmel_rx_chars()
796 atmel_port->break_active = 1; in atmel_rx_chars()
810 atmel_port->break_active = 0; in atmel_rx_chars()
818 atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_rx); in atmel_rx_chars()
828 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_chars() local
855 atmel_port->tx_done_mask |= ATMEL_US_TXRDY; in atmel_tx_chars()
859 atmel_port->tx_done_mask); in atmel_tx_chars()
862 atmel_port->tx_done_mask &= ~ATMEL_US_TXRDY; in atmel_tx_chars()
868 struct atmel_uart_port *atmel_port = arg; in atmel_complete_tx_dma() local
869 struct uart_port *port = &atmel_port->uart; in atmel_complete_tx_dma()
871 struct dma_chan *chan = atmel_port->chan_tx; in atmel_complete_tx_dma()
878 xmit->tail += atmel_port->tx_len; in atmel_complete_tx_dma()
881 port->icount.tx += atmel_port->tx_len; in atmel_complete_tx_dma()
883 spin_lock_irq(&atmel_port->lock_tx); in atmel_complete_tx_dma()
884 async_tx_ack(atmel_port->desc_tx); in atmel_complete_tx_dma()
885 atmel_port->cookie_tx = -EINVAL; in atmel_complete_tx_dma()
886 atmel_port->desc_tx = NULL; in atmel_complete_tx_dma()
887 spin_unlock_irq(&atmel_port->lock_tx); in atmel_complete_tx_dma()
898 atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); in atmel_complete_tx_dma()
904 atmel_port->hd_start_rx = true; in atmel_complete_tx_dma()
906 atmel_port->tx_done_mask); in atmel_complete_tx_dma()
914 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_tx_dma() local
915 struct dma_chan *chan = atmel_port->chan_tx; in atmel_release_tx_dma()
920 dma_unmap_sg(port->dev, &atmel_port->sg_tx, 1, in atmel_release_tx_dma()
924 atmel_port->desc_tx = NULL; in atmel_release_tx_dma()
925 atmel_port->chan_tx = NULL; in atmel_release_tx_dma()
926 atmel_port->cookie_tx = -EINVAL; in atmel_release_tx_dma()
934 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_dma() local
936 struct dma_chan *chan = atmel_port->chan_tx; in atmel_tx_dma()
938 struct scatterlist sgl[2], *sg, *sg_tx = &atmel_port->sg_tx; in atmel_tx_dma()
943 if (atmel_port->desc_tx != NULL) in atmel_tx_dma()
960 if (atmel_port->fifo_size) { in atmel_tx_dma()
991 atmel_port->tx_len = tx_len; in atmel_tx_dma()
1006 atmel_port->desc_tx = desc; in atmel_tx_dma()
1008 desc->callback_param = atmel_port; in atmel_tx_dma()
1009 atmel_port->cookie_tx = dmaengine_submit(desc); in atmel_tx_dma()
1010 if (dma_submit_error(atmel_port->cookie_tx)) { in atmel_tx_dma()
1012 atmel_port->cookie_tx); in atmel_tx_dma()
1025 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_tx_dma() local
1034 atmel_port->chan_tx = dma_request_slave_channel(mfd_dev, "tx"); in atmel_prepare_tx_dma()
1035 if (atmel_port->chan_tx == NULL) in atmel_prepare_tx_dma()
1038 dma_chan_name(atmel_port->chan_tx)); in atmel_prepare_tx_dma()
1040 spin_lock_init(&atmel_port->lock_tx); in atmel_prepare_tx_dma()
1041 sg_init_table(&atmel_port->sg_tx, 1); in atmel_prepare_tx_dma()
1044 sg_set_page(&atmel_port->sg_tx, in atmel_prepare_tx_dma()
1049 &atmel_port->sg_tx, in atmel_prepare_tx_dma()
1058 sg_dma_len(&atmel_port->sg_tx), in atmel_prepare_tx_dma()
1060 &sg_dma_address(&atmel_port->sg_tx)); in atmel_prepare_tx_dma()
1066 config.dst_addr_width = (atmel_port->fifo_size) ? in atmel_prepare_tx_dma()
1072 ret = dmaengine_slave_config(atmel_port->chan_tx, in atmel_prepare_tx_dma()
1083 atmel_port->use_dma_tx = false; in atmel_prepare_tx_dma()
1084 if (atmel_port->chan_tx) in atmel_prepare_tx_dma()
1092 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_complete_rx_dma() local
1094 atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_rx); in atmel_complete_rx_dma()
1099 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_rx_dma() local
1100 struct dma_chan *chan = atmel_port->chan_rx; in atmel_release_rx_dma()
1105 dma_unmap_sg(port->dev, &atmel_port->sg_rx, 1, in atmel_release_rx_dma()
1109 atmel_port->desc_rx = NULL; in atmel_release_rx_dma()
1110 atmel_port->chan_rx = NULL; in atmel_release_rx_dma()
1111 atmel_port->cookie_rx = -EINVAL; in atmel_release_rx_dma()
1116 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_from_dma() local
1118 struct circ_buf *ring = &atmel_port->rx_ring; in atmel_rx_from_dma()
1119 struct dma_chan *chan = atmel_port->chan_rx; in atmel_rx_from_dma()
1128 atmel_port->cookie_rx, in atmel_rx_from_dma()
1134 atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_rx); in atmel_rx_from_dma()
1140 &atmel_port->sg_rx, in atmel_rx_from_dma()
1151 ring->head = sg_dma_len(&atmel_port->sg_rx) - state.residue; in atmel_rx_from_dma()
1152 BUG_ON(ring->head > sg_dma_len(&atmel_port->sg_rx)); in atmel_rx_from_dma()
1166 count = sg_dma_len(&atmel_port->sg_rx) - ring->tail; in atmel_rx_from_dma()
1179 if (ring->head >= sg_dma_len(&atmel_port->sg_rx)) in atmel_rx_from_dma()
1187 &atmel_port->sg_rx, in atmel_rx_from_dma()
1198 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_rx_dma() local
1206 ring = &atmel_port->rx_ring; in atmel_prepare_rx_dma()
1211 atmel_port->chan_rx = dma_request_slave_channel(mfd_dev, "rx"); in atmel_prepare_rx_dma()
1212 if (atmel_port->chan_rx == NULL) in atmel_prepare_rx_dma()
1215 dma_chan_name(atmel_port->chan_rx)); in atmel_prepare_rx_dma()
1217 spin_lock_init(&atmel_port->lock_rx); in atmel_prepare_rx_dma()
1218 sg_init_table(&atmel_port->sg_rx, 1); in atmel_prepare_rx_dma()
1221 sg_set_page(&atmel_port->sg_rx, in atmel_prepare_rx_dma()
1226 &atmel_port->sg_rx, in atmel_prepare_rx_dma()
1235 sg_dma_len(&atmel_port->sg_rx), in atmel_prepare_rx_dma()
1237 &sg_dma_address(&atmel_port->sg_rx)); in atmel_prepare_rx_dma()
1247 ret = dmaengine_slave_config(atmel_port->chan_rx, in atmel_prepare_rx_dma()
1257 desc = dmaengine_prep_dma_cyclic(atmel_port->chan_rx, in atmel_prepare_rx_dma()
1258 sg_dma_address(&atmel_port->sg_rx), in atmel_prepare_rx_dma()
1259 sg_dma_len(&atmel_port->sg_rx), in atmel_prepare_rx_dma()
1260 sg_dma_len(&atmel_port->sg_rx)/2, in atmel_prepare_rx_dma()
1269 atmel_port->desc_rx = desc; in atmel_prepare_rx_dma()
1270 atmel_port->cookie_rx = dmaengine_submit(desc); in atmel_prepare_rx_dma()
1271 if (dma_submit_error(atmel_port->cookie_rx)) { in atmel_prepare_rx_dma()
1273 atmel_port->cookie_rx); in atmel_prepare_rx_dma()
1277 dma_async_issue_pending(atmel_port->chan_rx); in atmel_prepare_rx_dma()
1283 atmel_port->use_dma_rx = false; in atmel_prepare_rx_dma()
1284 if (atmel_port->chan_rx) in atmel_prepare_rx_dma()
1291 struct atmel_uart_port *atmel_port = from_timer(atmel_port, t, in atmel_uart_timer_callback() local
1293 struct uart_port *port = &atmel_port->uart; in atmel_uart_timer_callback()
1295 if (!atomic_read(&atmel_port->tasklet_shutdown)) { in atmel_uart_timer_callback()
1296 tasklet_schedule(&atmel_port->tasklet_rx); in atmel_uart_timer_callback()
1297 mod_timer(&atmel_port->uart_timer, in atmel_uart_timer_callback()
1308 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_handle_receive() local
1321 atmel_tasklet_schedule(atmel_port, in atmel_handle_receive()
1322 &atmel_port->tasklet_rx); in atmel_handle_receive()
1334 atmel_tasklet_schedule(atmel_port, in atmel_handle_receive()
1335 &atmel_port->tasklet_rx); in atmel_handle_receive()
1349 atmel_port->break_active = 0; in atmel_handle_receive()
1359 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_handle_transmit() local
1361 if (pending & atmel_port->tx_done_mask) { in atmel_handle_transmit()
1363 atmel_port->tx_done_mask); in atmel_handle_transmit()
1366 if (atmel_port->hd_start_rx) { in atmel_handle_transmit()
1371 atmel_port->hd_start_rx = false; in atmel_handle_transmit()
1375 atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); in atmel_handle_transmit()
1386 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_handle_status() local
1391 status_change = status ^ atmel_port->irq_status_prev; in atmel_handle_status()
1392 atmel_port->irq_status_prev = status; in atmel_handle_status()
1420 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_interrupt() local
1423 spin_lock(&atmel_port->lock_suspended); in atmel_interrupt()
1432 if (atmel_port->suspended) { in atmel_interrupt()
1433 atmel_port->pending |= pending; in atmel_interrupt()
1434 atmel_port->pending_status = status; in atmel_interrupt()
1445 spin_unlock(&atmel_port->lock_suspended); in atmel_interrupt()
1452 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_tx_pdc() local
1453 struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx; in atmel_release_tx_pdc()
1466 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_tx_pdc() local
1468 struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx; in atmel_tx_pdc()
1502 atmel_port->tx_done_mask); in atmel_tx_pdc()
1516 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_tx_pdc() local
1517 struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx; in atmel_prepare_tx_pdc()
1533 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_from_ring() local
1534 struct circ_buf *ring = &atmel_port->rx_ring; in atmel_rx_from_ring()
1595 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_release_rx_pdc() local
1599 struct atmel_dma_buffer *pdc = &atmel_port->pdc_rx[i]; in atmel_release_rx_pdc()
1611 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_rx_from_pdc() local
1614 int rx_idx = atmel_port->pdc_rx_idx; in atmel_rx_from_pdc()
1623 pdc = &atmel_port->pdc_rx[rx_idx]; in atmel_rx_from_pdc()
1671 atmel_port->pdc_rx_idx = rx_idx; in atmel_rx_from_pdc()
1683 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_prepare_rx_pdc() local
1687 struct atmel_dma_buffer *pdc = &atmel_port->pdc_rx[i]; in atmel_prepare_rx_pdc()
1693 atmel_port->pdc_rx[0].dma_addr, in atmel_prepare_rx_pdc()
1696 kfree(atmel_port->pdc_rx[0].buf); in atmel_prepare_rx_pdc()
1698 atmel_port->use_pdc_rx = false; in atmel_prepare_rx_pdc()
1709 atmel_port->pdc_rx_idx = 0; in atmel_prepare_rx_pdc()
1711 atmel_uart_writel(port, ATMEL_PDC_RPR, atmel_port->pdc_rx[0].dma_addr); in atmel_prepare_rx_pdc()
1715 atmel_port->pdc_rx[1].dma_addr); in atmel_prepare_rx_pdc()
1726 struct atmel_uart_port *atmel_port = from_tasklet(atmel_port, t, in atmel_tasklet_rx_func() local
1728 struct uart_port *port = &atmel_port->uart; in atmel_tasklet_rx_func()
1732 atmel_port->schedule_rx(port); in atmel_tasklet_rx_func()
1738 struct atmel_uart_port *atmel_port = from_tasklet(atmel_port, t, in atmel_tasklet_tx_func() local
1740 struct uart_port *port = &atmel_port->uart; in atmel_tasklet_tx_func()
1744 atmel_port->schedule_tx(port); in atmel_tasklet_tx_func()
1748 static void atmel_init_property(struct atmel_uart_port *atmel_port, in atmel_init_property() argument
1756 atmel_port->use_dma_rx = true; in atmel_init_property()
1757 atmel_port->use_pdc_rx = false; in atmel_init_property()
1759 atmel_port->use_dma_rx = false; in atmel_init_property()
1760 atmel_port->use_pdc_rx = true; in atmel_init_property()
1763 atmel_port->use_dma_rx = false; in atmel_init_property()
1764 atmel_port->use_pdc_rx = false; in atmel_init_property()
1769 atmel_port->use_dma_tx = true; in atmel_init_property()
1770 atmel_port->use_pdc_tx = false; in atmel_init_property()
1772 atmel_port->use_dma_tx = false; in atmel_init_property()
1773 atmel_port->use_pdc_tx = true; in atmel_init_property()
1776 atmel_port->use_dma_tx = false; in atmel_init_property()
1777 atmel_port->use_pdc_tx = false; in atmel_init_property()
1783 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_set_ops() local
1786 atmel_port->prepare_rx = &atmel_prepare_rx_dma; in atmel_set_ops()
1787 atmel_port->schedule_rx = &atmel_rx_from_dma; in atmel_set_ops()
1788 atmel_port->release_rx = &atmel_release_rx_dma; in atmel_set_ops()
1790 atmel_port->prepare_rx = &atmel_prepare_rx_pdc; in atmel_set_ops()
1791 atmel_port->schedule_rx = &atmel_rx_from_pdc; in atmel_set_ops()
1792 atmel_port->release_rx = &atmel_release_rx_pdc; in atmel_set_ops()
1794 atmel_port->prepare_rx = NULL; in atmel_set_ops()
1795 atmel_port->schedule_rx = &atmel_rx_from_ring; in atmel_set_ops()
1796 atmel_port->release_rx = NULL; in atmel_set_ops()
1800 atmel_port->prepare_tx = &atmel_prepare_tx_dma; in atmel_set_ops()
1801 atmel_port->schedule_tx = &atmel_tx_dma; in atmel_set_ops()
1802 atmel_port->release_tx = &atmel_release_tx_dma; in atmel_set_ops()
1804 atmel_port->prepare_tx = &atmel_prepare_tx_pdc; in atmel_set_ops()
1805 atmel_port->schedule_tx = &atmel_tx_pdc; in atmel_set_ops()
1806 atmel_port->release_tx = &atmel_release_tx_pdc; in atmel_set_ops()
1808 atmel_port->prepare_tx = NULL; in atmel_set_ops()
1809 atmel_port->schedule_tx = &atmel_tx_chars; in atmel_set_ops()
1810 atmel_port->release_tx = NULL; in atmel_set_ops()
1819 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_get_ip_name() local
1834 atmel_port->has_frac_baudrate = false; in atmel_get_ip_name()
1835 atmel_port->has_hw_timer = false; in atmel_get_ip_name()
1836 atmel_port->is_usart = false; in atmel_get_ip_name()
1840 atmel_port->has_hw_timer = true; in atmel_get_ip_name()
1841 atmel_port->rtor = ATMEL_UA_RTOR; in atmel_get_ip_name()
1844 atmel_port->has_frac_baudrate = true; in atmel_get_ip_name()
1845 atmel_port->has_hw_timer = true; in atmel_get_ip_name()
1846 atmel_port->is_usart = true; in atmel_get_ip_name()
1847 atmel_port->rtor = ATMEL_US_RTOR; in atmel_get_ip_name()
1853 atmel_port->fidi_min = 3; in atmel_get_ip_name()
1854 atmel_port->fidi_max = 65535; in atmel_get_ip_name()
1857 atmel_port->fidi_min = 3; in atmel_get_ip_name()
1858 atmel_port->fidi_max = 2047; in atmel_get_ip_name()
1861 atmel_port->fidi_min = 1; in atmel_get_ip_name()
1862 atmel_port->fidi_max = 2047; in atmel_get_ip_name()
1874 atmel_port->has_frac_baudrate = true; in atmel_get_ip_name()
1875 atmel_port->has_hw_timer = true; in atmel_get_ip_name()
1876 atmel_port->is_usart = true; in atmel_get_ip_name()
1877 atmel_port->rtor = ATMEL_US_RTOR; in atmel_get_ip_name()
1895 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_startup() local
1904 atmel_port->ms_irq_enabled = false; in atmel_startup()
1917 atomic_set(&atmel_port->tasklet_shutdown, 0); in atmel_startup()
1918 tasklet_setup(&atmel_port->tasklet_rx, atmel_tasklet_rx_func); in atmel_startup()
1919 tasklet_setup(&atmel_port->tasklet_tx, atmel_tasklet_tx_func); in atmel_startup()
1924 atmel_init_property(atmel_port, pdev); in atmel_startup()
1927 if (atmel_port->prepare_rx) { in atmel_startup()
1928 retval = atmel_port->prepare_rx(port); in atmel_startup()
1933 if (atmel_port->prepare_tx) { in atmel_startup()
1934 retval = atmel_port->prepare_tx(port); in atmel_startup()
1942 if (atmel_port->fifo_size) { in atmel_startup()
1956 if (atmel_port->rts_high && in atmel_startup()
1957 atmel_port->rts_low) in atmel_startup()
1959 ATMEL_US_RXFTHRES(atmel_port->rts_high) | in atmel_startup()
1960 ATMEL_US_RXFTHRES2(atmel_port->rts_low); in atmel_startup()
1966 atmel_port->irq_status_prev = atmel_uart_readl(port, ATMEL_US_CSR); in atmel_startup()
1974 atmel_port->tx_stopped = false; in atmel_startup()
1976 timer_setup(&atmel_port->uart_timer, atmel_uart_timer_callback, 0); in atmel_startup()
1980 if (!atmel_port->has_hw_timer) { in atmel_startup()
1981 mod_timer(&atmel_port->uart_timer, in atmel_startup()
1985 atmel_uart_writel(port, atmel_port->rtor, in atmel_startup()
1996 if (!atmel_port->has_hw_timer) { in atmel_startup()
1997 mod_timer(&atmel_port->uart_timer, in atmel_startup()
2001 atmel_uart_writel(port, atmel_port->rtor, in atmel_startup()
2022 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_flush_buffer() local
2026 atmel_port->pdc_tx.ofs = 0; in atmel_flush_buffer()
2032 atmel_port->tx_len = 0; in atmel_flush_buffer()
2040 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_shutdown() local
2049 atomic_inc(&atmel_port->tasklet_shutdown); in atmel_shutdown()
2055 del_timer_sync(&atmel_port->uart_timer); in atmel_shutdown()
2064 tasklet_kill(&atmel_port->tasklet_rx); in atmel_shutdown()
2065 tasklet_kill(&atmel_port->tasklet_tx); in atmel_shutdown()
2079 if (atmel_port->release_rx) in atmel_shutdown()
2080 atmel_port->release_rx(port); in atmel_shutdown()
2081 if (atmel_port->release_tx) in atmel_shutdown()
2082 atmel_port->release_tx(port); in atmel_shutdown()
2087 atmel_port->rx_ring.head = 0; in atmel_shutdown()
2088 atmel_port->rx_ring.tail = 0; in atmel_shutdown()
2104 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_pm() local
2112 clk_prepare_enable(atmel_port->clk); in atmel_serial_pm()
2115 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->backup_imr); in atmel_serial_pm()
2119 atmel_port->backup_imr = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_serial_pm()
2126 clk_disable_unprepare(atmel_port->clk); in atmel_serial_pm()
2127 if (__clk_is_enabled(atmel_port->gclk)) in atmel_serial_pm()
2128 clk_disable_unprepare(atmel_port->gclk); in atmel_serial_pm()
2142 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_set_termios() local
2152 if (atmel_port->is_usart) in atmel_set_termios()
2237 atmel_port->tx_stopped = true; in atmel_set_termios()
2258 !mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS)) { in atmel_set_termios()
2296 if (atmel_port->has_frac_baudrate) { in atmel_set_termios()
2312 if (atmel_port->is_usart && cd > ATMEL_US_CD) { in atmel_set_termios()
2325 if (!atmel_port->has_frac_baudrate) { in atmel_set_termios()
2326 if (__clk_is_enabled(atmel_port->gclk)) in atmel_set_termios()
2327 clk_disable_unprepare(atmel_port->gclk); in atmel_set_termios()
2328 gclk_rate = clk_round_rate(atmel_port->gclk, 16 * baud); in atmel_set_termios()
2329 actual_baud = clk_get_rate(atmel_port->clk) / (16 * cd); in atmel_set_termios()
2332 clk_set_rate(atmel_port->gclk, 16 * baud); in atmel_set_termios()
2333 ret = clk_prepare_enable(atmel_port->gclk); in atmel_set_termios()
2337 if (atmel_port->is_usart) { in atmel_set_termios()
2386 atmel_port->tx_stopped = false; in atmel_set_termios()
2550 static int atmel_init_port(struct atmel_uart_port *atmel_port, in atmel_init_port() argument
2554 struct uart_port *port = &atmel_port->uart; in atmel_init_port()
2557 atmel_init_property(atmel_port, pdev); in atmel_init_port()
2572 memset(&atmel_port->rx_ring, 0, sizeof(atmel_port->rx_ring)); in atmel_init_port()
2578 port->uartclk = clk_get_rate(atmel_port->clk); in atmel_init_port()
2585 atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; in atmel_init_port()
2588 atmel_port->tx_done_mask = ATMEL_US_ENDTX | ATMEL_US_TXBUFE; in atmel_init_port()
2590 atmel_port->tx_done_mask = ATMEL_US_TXRDY; in atmel_init_port()
2610 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_console_write() local
2619 ATMEL_US_RXRDY | atmel_port->tx_done_mask); in atmel_console_write()
2627 atmel_port->tx_stopped = false; in atmel_console_write()
2688 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_console_setup() local
2702 atmel_port->tx_stopped = false; in atmel_console_setup()
2776 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_suspend() local
2789 atmel_port->cache.mr = atmel_uart_readl(port, ATMEL_US_MR); in atmel_serial_suspend()
2790 atmel_port->cache.imr = atmel_uart_readl(port, ATMEL_US_IMR); in atmel_serial_suspend()
2791 atmel_port->cache.brgr = atmel_uart_readl(port, ATMEL_US_BRGR); in atmel_serial_suspend()
2792 atmel_port->cache.rtor = atmel_uart_readl(port, in atmel_serial_suspend()
2793 atmel_port->rtor); in atmel_serial_suspend()
2794 atmel_port->cache.ttgr = atmel_uart_readl(port, ATMEL_US_TTGR); in atmel_serial_suspend()
2795 atmel_port->cache.fmr = atmel_uart_readl(port, ATMEL_US_FMR); in atmel_serial_suspend()
2796 atmel_port->cache.fimr = atmel_uart_readl(port, ATMEL_US_FIMR); in atmel_serial_suspend()
2800 atmel_port->may_wakeup = device_may_wakeup(dev); in atmel_serial_suspend()
2804 spin_lock_irqsave(&atmel_port->lock_suspended, flags); in atmel_serial_suspend()
2805 atmel_port->suspended = true; in atmel_serial_suspend()
2806 spin_unlock_irqrestore(&atmel_port->lock_suspended, flags); in atmel_serial_suspend()
2818 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_resume() local
2822 atmel_uart_writel(port, ATMEL_US_MR, atmel_port->cache.mr); in atmel_serial_resume()
2823 atmel_uart_writel(port, ATMEL_US_IER, atmel_port->cache.imr); in atmel_serial_resume()
2824 atmel_uart_writel(port, ATMEL_US_BRGR, atmel_port->cache.brgr); in atmel_serial_resume()
2825 atmel_uart_writel(port, atmel_port->rtor, in atmel_serial_resume()
2826 atmel_port->cache.rtor); in atmel_serial_resume()
2827 atmel_uart_writel(port, ATMEL_US_TTGR, atmel_port->cache.ttgr); in atmel_serial_resume()
2829 if (atmel_port->fifo_size) { in atmel_serial_resume()
2833 atmel_port->cache.fmr); in atmel_serial_resume()
2835 atmel_port->cache.fimr); in atmel_serial_resume()
2840 spin_lock_irqsave(&atmel_port->lock_suspended, flags); in atmel_serial_resume()
2841 if (atmel_port->pending) { in atmel_serial_resume()
2842 atmel_handle_receive(port, atmel_port->pending); in atmel_serial_resume()
2843 atmel_handle_status(port, atmel_port->pending, in atmel_serial_resume()
2844 atmel_port->pending_status); in atmel_serial_resume()
2845 atmel_handle_transmit(port, atmel_port->pending); in atmel_serial_resume()
2846 atmel_port->pending = 0; in atmel_serial_resume()
2848 atmel_port->suspended = false; in atmel_serial_resume()
2849 spin_unlock_irqrestore(&atmel_port->lock_suspended, flags); in atmel_serial_resume()
2852 device_set_wakeup_enable(dev, atmel_port->may_wakeup); in atmel_serial_resume()
2857 static void atmel_serial_probe_fifos(struct atmel_uart_port *atmel_port, in atmel_serial_probe_fifos() argument
2860 atmel_port->fifo_size = 0; in atmel_serial_probe_fifos()
2861 atmel_port->rts_low = 0; in atmel_serial_probe_fifos()
2862 atmel_port->rts_high = 0; in atmel_serial_probe_fifos()
2866 &atmel_port->fifo_size)) in atmel_serial_probe_fifos()
2869 if (!atmel_port->fifo_size) in atmel_serial_probe_fifos()
2872 if (atmel_port->fifo_size < ATMEL_MIN_FIFO_SIZE) { in atmel_serial_probe_fifos()
2873 atmel_port->fifo_size = 0; in atmel_serial_probe_fifos()
2886 atmel_port->rts_high = max_t(int, atmel_port->fifo_size >> 1, in atmel_serial_probe_fifos()
2887 atmel_port->fifo_size - ATMEL_RTS_HIGH_OFFSET); in atmel_serial_probe_fifos()
2888 atmel_port->rts_low = max_t(int, atmel_port->fifo_size >> 2, in atmel_serial_probe_fifos()
2889 atmel_port->fifo_size - ATMEL_RTS_LOW_OFFSET); in atmel_serial_probe_fifos()
2892 atmel_port->fifo_size); in atmel_serial_probe_fifos()
2894 atmel_port->rts_high); in atmel_serial_probe_fifos()
2896 atmel_port->rts_low); in atmel_serial_probe_fifos()
2901 struct atmel_uart_port *atmel_port; in atmel_serial_probe() local
2935 atmel_port = &atmel_ports[ret]; in atmel_serial_probe()
2936 atmel_port->backup_imr = 0; in atmel_serial_probe()
2937 atmel_port->uart.line = ret; in atmel_serial_probe()
2938 atmel_port->uart.has_sysrq = IS_ENABLED(CONFIG_SERIAL_ATMEL_CONSOLE); in atmel_serial_probe()
2939 atmel_serial_probe_fifos(atmel_port, pdev); in atmel_serial_probe()
2941 atomic_set(&atmel_port->tasklet_shutdown, 0); in atmel_serial_probe()
2942 spin_lock_init(&atmel_port->lock_suspended); in atmel_serial_probe()
2944 atmel_port->clk = devm_clk_get(&pdev->dev, "usart"); in atmel_serial_probe()
2945 if (IS_ERR(atmel_port->clk)) { in atmel_serial_probe()
2946 ret = PTR_ERR(atmel_port->clk); in atmel_serial_probe()
2949 ret = clk_prepare_enable(atmel_port->clk); in atmel_serial_probe()
2953 atmel_port->gclk = devm_clk_get_optional(&pdev->dev, "gclk"); in atmel_serial_probe()
2954 if (IS_ERR(atmel_port->gclk)) { in atmel_serial_probe()
2955 ret = PTR_ERR(atmel_port->gclk); in atmel_serial_probe()
2959 ret = atmel_init_port(atmel_port, pdev); in atmel_serial_probe()
2963 atmel_port->gpios = mctrl_gpio_init(&atmel_port->uart, 0); in atmel_serial_probe()
2964 if (IS_ERR(atmel_port->gpios)) { in atmel_serial_probe()
2965 ret = PTR_ERR(atmel_port->gpios); in atmel_serial_probe()
2969 if (!atmel_use_pdc_rx(&atmel_port->uart)) { in atmel_serial_probe()
2976 atmel_port->rx_ring.buf = data; in atmel_serial_probe()
2979 rs485_enabled = atmel_port->uart.rs485.flags & SER_RS485_ENABLED; in atmel_serial_probe()
2981 ret = uart_add_one_port(&atmel_uart, &atmel_port->uart); in atmel_serial_probe()
2986 platform_set_drvdata(pdev, atmel_port); in atmel_serial_probe()
2989 atmel_uart_writel(&atmel_port->uart, ATMEL_US_MR, in atmel_serial_probe()
2991 atmel_uart_writel(&atmel_port->uart, ATMEL_US_CR, in atmel_serial_probe()
2998 atmel_get_ip_name(&atmel_port->uart); in atmel_serial_probe()
3004 clk_disable_unprepare(atmel_port->clk); in atmel_serial_probe()
3009 kfree(atmel_port->rx_ring.buf); in atmel_serial_probe()
3010 atmel_port->rx_ring.buf = NULL; in atmel_serial_probe()
3012 clk_disable_unprepare(atmel_port->clk); in atmel_serial_probe()
3013 clear_bit(atmel_port->uart.line, atmel_ports_in_use); in atmel_serial_probe()
3030 struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); in atmel_serial_remove() local
3033 tasklet_kill(&atmel_port->tasklet_rx); in atmel_serial_remove()
3034 tasklet_kill(&atmel_port->tasklet_tx); in atmel_serial_remove()
3040 kfree(atmel_port->rx_ring.buf); in atmel_serial_remove()