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 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 21 * 02110-1301, USA. 22 */ 23 24 #include "cx23885.h" 25 #include "cx23885-av.h" 26 #include "cx23885-video.h" 27 28 void cx23885_av_work_handler(struct work_struct *work) 29 { 30 struct cx23885_dev *dev = 31 container_of(work, struct cx23885_dev, cx25840_work); 32 bool handled; 33 34 v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine, 35 PCI_MSK_AV_CORE, &handled); 36 37 /* Getting here with the interrupt not handled 38 then probbaly flatiron does have pending interrupts. 39 */ 40 if (!handled) { 41 /* clear left and right adc channel interrupt request flag */ 42 cx23885_flatiron_write(dev, 0x1f, 43 cx23885_flatiron_read(dev, 0x1f) | 0x80); 44 cx23885_flatiron_write(dev, 0x23, 45 cx23885_flatiron_read(dev, 0x23) | 0x80); 46 } 47 48 cx23885_irq_enable(dev, PCI_MSK_AV_CORE); 49 } 50