From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/media/pci/cx23885/cx23885-av.c | 44 ++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 drivers/media/pci/cx23885/cx23885-av.c (limited to 'drivers/media/pci/cx23885/cx23885-av.c') diff --git a/drivers/media/pci/cx23885/cx23885-av.c b/drivers/media/pci/cx23885/cx23885-av.c new file mode 100644 index 000000000..e7d4406f9 --- /dev/null +++ b/drivers/media/pci/cx23885/cx23885-av.c @@ -0,0 +1,44 @@ +/* + * Driver for the Conexant CX23885/7/8 PCIe bridge + * + * AV device support routines - non-input, non-vl42_subdev routines + * + * Copyright (C) 2010 Andy Walls + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include "cx23885.h" +#include "cx23885-av.h" +#include "cx23885-video.h" + +void cx23885_av_work_handler(struct work_struct *work) +{ + struct cx23885_dev *dev = + container_of(work, struct cx23885_dev, cx25840_work); + bool handled = false; + + v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine, + PCI_MSK_AV_CORE, &handled); + + /* Getting here with the interrupt not handled + then probbaly flatiron does have pending interrupts. + */ + if (!handled) { + /* clear left and right adc channel interrupt request flag */ + cx23885_flatiron_write(dev, 0x1f, + cx23885_flatiron_read(dev, 0x1f) | 0x80); + cx23885_flatiron_write(dev, 0x23, + cx23885_flatiron_read(dev, 0x23) | 0x80); + } + + cx23885_irq_enable(dev, PCI_MSK_AV_CORE); +} -- cgit v1.2.3