Serial8250_tx_empty
Web20 Mar 2024 · As Tx side is definitely > > not empty at that point, it seems incorrect for serial8250_tx_empty () > > claim Tx is empty. > > > > Fix the race by also checking in … Webtransmitted. serial8250_tx_empty() was reporting that all characters were: transmitted before they actually were. === Discovered in parallel with more testing and analysis by …
Serial8250_tx_empty
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Weblinux/drivers/tty/serial/8250/8250_port.c Go to file ij-intel serial: 8250: Prevent starting up DMA Rx on THRI interrupt Latest commit 90b8596 last month History 73 contributors +38 3536 lines (3040 sloc) 90.8 KB Raw Blame // SPDX-License-Identifier: GPL-2.0+ /* * Base port operations for 8250/16550-type serial ports *
Webserial8250_do_prepare_tx_dma(p); desc = dmaengine_prep_slave_single(dma->txchan, dma->tx_addr + xmit->tail, dma->tx_size, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT … WebYou may want to take a look at the existing driver in drivers/tty/serial/8250.c (it handles the 16550 devices and other similar devices as well). The interrupt handler is …
Web21 Feb 2010 · serial8250_tx_empty() was reporting that all characters were transmitted before they actually were. === Discovered in parallel with more testing and analysis by … Web1 day ago · Lingyu Liu (1): ice: Reset FDIR counter in FDIR init stage Lorenzo Bianconi (1): wifi: mt76: mt7921: fix fw used for offload check for mt7922 Lukas Wunner (6): cxl/pci: Fix CDAT retrieval on big endian cxl/pci: Handle truncated CDAT header cxl/pci: Handle truncated CDAT entries cxl/pci: Handle excessive CDAT length PCI/DOE: Silence WARN …
Web28 Jan 2024 · The patch introduce the UART_CAP_TEMT capability which is by default assigned to all 8250 UART since the code assume that device has the interrupt on TEMT …
Web17 Mar 2024 · As Tx side is definitely > not empty at that point, it seems incorrect for serial8250_tx_empty () > claim Tx is empty. > > Fix the race by also checking in … bj\u0027s country kitchenWebtransmitted. serial8250_tx_empty() was reporting that all characters were: transmitted before they actually were. === Discovered in parallel with more testing and analysis by Kees Schoenmakers: as follows: I ran into an NetMos 9835 serial pci board which behaves a little: different than the standard. This type of expansion board is very common. bj\u0027s cotton sheets review 425 thread countWeb*PATCH v3 0/6] LSR flag preservation improvements @ 2024-06-07 8:29 Ilpo Järvinen 2024-06-07 8:29 ` [PATCH v3 1/6] serial: 8250: Store to lsr_save_flags after lsr read Ilpo Järvinen ` (6 more replies) 0 siblings, 7 replies; 11+ messages in thread From: Ilpo Järvinen @ 2024-06-07 8:29 UTC (permalink / raw) To: linux-serial, Greg KH, Jiri Slaby, Andy Shevchenko, Uwe … dating site for fat womenWebserial8250_tx_chars(up); spin_unlock_irqrestore(&port->lock, flags);} iir = serial_port_in(port, UART_IIR); return serial8250_handle_irq(port, iir);} static unsigned int … bj\\u0027s countrysideWebI contact you regarding the 8250_dw driver. My setup is an Asus T100TA (baytrail) + kernel 3.14. The UART controller is ACPI enumerated (ID is 80860F0A). (UART_CAP_AFE capable) This uart is used to communicate with a BCM4324 bluetooth chip (HCI H4 over uart). However we have many bluetooth instabilities. dating site for educatedWeb22 Aug 2024 · You could also have serial8250: too much work for irq4 on a phsyical system with broken UART. I am debugging an ARM chipset via UART and have already broken two … bj\\u0027s corp phone numberWebstatic unsigned int serial8250_tx_empty (struct uart_port *port) @@ -1523,6 +1583,36 @@ static void serial8250_break_ctl (struct up->lcr &= ~UART_LCR_SBC; serial_out (up, UART_LCR, up->lcr); spin_unlock_irqrestore (&up->port.lock, flags); +} + +#define BOTH_EMPTY (UART_LSR_TEMT UART_LSR_THRE) + +/* dating site for educated people