1 /* 2 * Driver for the Conexant CX23885/7/8 PCIe bridge 3 * 4 * AV device support routines - non-input, non-vl42_subdev routines 5 * 6 * Copyright (C) 2010 Andy Walls <awalls@md.metrocast.net> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * as published by the Free Software Foundation; either version 2 11 * of the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 */ 18 19 #include "cx23885.h" 20 #include "cx23885-av.h" 21 #include "cx23885-video.h" 22 23 void cx23885_av_work_handler(struct work_struct *work) 24 { 25 struct cx23885_dev *dev = 26 container_of(work, struct cx23885_dev, cx25840_work); 27 bool handled; 28 29 v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine, 30 PCI_MSK_AV_CORE, &handled); 31 32 /* Getting here with the interrupt not handled 33 then probbaly flatiron does have pending interrupts. 34 */ 35 if (!handled) { 36 /* clear left and right adc channel interrupt request flag */ 37 cx23885_flatiron_write(dev, 0x1f, 38 cx23885_flatiron_read(dev, 0x1f) | 0x80); 39 cx23885_flatiron_write(dev, 0x23, 40 cx23885_flatiron_read(dev, 0x23) | 0x80); 41 } 42 43 cx23885_irq_enable(dev, PCI_MSK_AV_CORE); 44 } 45