2005-04-16 18:20:36 -04:00
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/*
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dpc7146.c - v4l2 driver for the dpc7146 demonstration board
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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Copyright (C) 2000-2003 Michael Hunold <michael@mihu.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define DEBUG_VARIABLE debug
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#include <media/saa7146_vv.h>
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#include <linux/video_decoder.h> /* for saa7111a */
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#define I2C_SAA7111A 0x24
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/* All unused bytes are reserverd. */
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#define SAA711X_CHIP_VERSION 0x00
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#define SAA711X_ANALOG_INPUT_CONTROL_1 0x02
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#define SAA711X_ANALOG_INPUT_CONTROL_2 0x03
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#define SAA711X_ANALOG_INPUT_CONTROL_3 0x04
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#define SAA711X_ANALOG_INPUT_CONTROL_4 0x05
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#define SAA711X_HORIZONTAL_SYNC_START 0x06
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#define SAA711X_HORIZONTAL_SYNC_STOP 0x07
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#define SAA711X_SYNC_CONTROL 0x08
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#define SAA711X_LUMINANCE_CONTROL 0x09
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#define SAA711X_LUMINANCE_BRIGHTNESS 0x0A
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#define SAA711X_LUMINANCE_CONTRAST 0x0B
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#define SAA711X_CHROMA_SATURATION 0x0C
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#define SAA711X_CHROMA_HUE_CONTROL 0x0D
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#define SAA711X_CHROMA_CONTROL 0x0E
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#define SAA711X_FORMAT_DELAY_CONTROL 0x10
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#define SAA711X_OUTPUT_CONTROL_1 0x11
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#define SAA711X_OUTPUT_CONTROL_2 0x12
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#define SAA711X_OUTPUT_CONTROL_3 0x13
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#define SAA711X_V_GATE_1_START 0x15
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#define SAA711X_V_GATE_1_STOP 0x16
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#define SAA711X_V_GATE_1_MSB 0x17
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#define SAA711X_TEXT_SLICER_STATUS 0x1A
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#define SAA711X_DECODED_BYTES_OF_TS_1 0x1B
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#define SAA711X_DECODED_BYTES_OF_TS_2 0x1C
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#define SAA711X_STATUS_BYTE 0x1F
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2006-03-17 08:37:02 -05:00
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#define DPC_BOARD_CAN_DO_VBI(dev) (dev->revision != 0)
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2005-04-16 18:20:36 -04:00
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static int debug = 0;
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module_param(debug, int, 0);
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MODULE_PARM_DESC(debug, "debug verbosity");
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static int dpc_num = 0;
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#define DPC_INPUTS 2
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static struct v4l2_input dpc_inputs[DPC_INPUTS] = {
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{ 0, "Port A", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
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{ 1, "Port B", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
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};
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#define DPC_AUDIOS 0
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static struct saa7146_extension_ioctls ioctls[] = {
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{ VIDIOC_G_INPUT, SAA7146_EXCLUSIVE },
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{ VIDIOC_S_INPUT, SAA7146_EXCLUSIVE },
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{ VIDIOC_ENUMINPUT, SAA7146_EXCLUSIVE },
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{ VIDIOC_S_STD, SAA7146_AFTER },
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{ 0, 0 }
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};
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struct dpc
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{
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struct video_device *video_dev;
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struct video_device *vbi_dev;
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2006-03-17 08:37:02 -05:00
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struct i2c_adapter i2c_adapter;
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2005-04-16 18:20:36 -04:00
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struct i2c_client *saa7111a;
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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int cur_input; /* current input */
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};
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2008-01-27 12:14:51 -05:00
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static int dpc_check_clients(struct device *dev, void *data)
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{
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struct dpc* dpc = data;
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struct i2c_client *client = i2c_verify_client(dev);
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if( !client )
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return 0;
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if( I2C_SAA7111A == client->addr )
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dpc->saa7111a = client;
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return 0;
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}
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2005-04-16 18:20:36 -04:00
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/* fixme: add vbi stuff here */
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static int dpc_probe(struct saa7146_dev* dev)
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{
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2006-03-17 08:37:02 -05:00
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struct dpc* dpc = NULL;
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2005-04-16 18:20:36 -04:00
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2006-01-11 16:40:56 -05:00
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dpc = kzalloc(sizeof(struct dpc), GFP_KERNEL);
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2005-04-16 18:20:36 -04:00
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if( NULL == dpc ) {
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printk("dpc_v4l2.o: dpc_probe: not enough kernel memory.\n");
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return -ENOMEM;
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}
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/* FIXME: enable i2c-port pins, video-port-pins
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video port pins should be enabled here ?! */
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saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26));
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dpc->i2c_adapter = (struct i2c_adapter) {
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.class = I2C_CLASS_TV_ANALOG,
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.name = "dpc7146",
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};
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saa7146_i2c_adapter_prepare(dev, &dpc->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
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if(i2c_add_adapter(&dpc->i2c_adapter) < 0) {
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DEB_S(("cannot register i2c-device. skipping.\n"));
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kfree(dpc);
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return -EFAULT;
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}
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/* loop through all i2c-devices on the bus and look who is there */
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2008-01-27 12:14:51 -05:00
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device_for_each_child(&dpc->i2c_adapter.dev, dpc, dpc_check_clients);
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2005-04-16 18:20:36 -04:00
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/* check if all devices are present */
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if( 0 == dpc->saa7111a ) {
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2006-03-17 08:37:02 -05:00
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DEB_D(("dpc_v4l2.o: dpc_attach failed for this device.\n"));
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2005-04-16 18:20:36 -04:00
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i2c_del_adapter(&dpc->i2c_adapter);
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kfree(dpc);
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return -ENODEV;
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}
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2006-03-17 08:37:02 -05:00
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/* all devices are present, probe was successful */
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DEB_D(("dpc_v4l2.o: dpc_probe succeeded for this device.\n"));
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2005-04-16 18:20:36 -04:00
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/* we store the pointer in our private data field */
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dev->ext_priv = dpc;
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return 0;
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}
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/* bring hardware to a sane state. this has to be done, just in case someone
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wants to capture from this device before it has been properly initialized.
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the capture engine would badly fail, because no valid signal arrives on the
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saa7146, thus leading to timeouts and stuff. */
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static int dpc_init_done(struct saa7146_dev* dev)
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{
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struct dpc* dpc = (struct dpc*)dev->ext_priv;
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DEB_D(("dpc_v4l2.o: dpc_init_done called.\n"));
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/* initialize the helper ics to useful values */
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x00, 0x11);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x02, 0xc0);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x03, 0x30);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x04, 0x00);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x05, 0x00);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x06, 0xde);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x07, 0xad);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x08, 0xa8);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x09, 0x00);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x0a, 0x80);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x0b, 0x47);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x0c, 0x40);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x0d, 0x00);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x0e, 0x03);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x10, 0xd0);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x11, 0x1c);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x12, 0xc1);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x13, 0x30);
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i2c_smbus_write_byte_data(dpc->saa7111a, 0x1f, 0x81);
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return 0;
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}
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static struct saa7146_ext_vv vv_data;
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/* this function only gets called when the probing was successful */
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static int dpc_attach(struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
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{
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struct dpc* dpc = (struct dpc*)dev->ext_priv;
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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DEB_D(("dpc_v4l2.o: dpc_attach called.\n"));
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/* checking for i2c-devices can be omitted here, because we
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already did this in "dpc_vl42_probe" */
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saa7146_vv_init(dev,&vv_data);
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if( 0 != saa7146_register_device(&dpc->video_dev, dev, "dpc", VFL_TYPE_GRABBER)) {
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ERR(("cannot register capture v4l2 device. skipping.\n"));
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return -1;
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}
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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/* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
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if( 0 != DPC_BOARD_CAN_DO_VBI(dev)) {
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if( 0 != saa7146_register_device(&dpc->vbi_dev, dev, "dpc", VFL_TYPE_VBI)) {
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ERR(("cannot register vbi v4l2 device. skipping.\n"));
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}
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}
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i2c_use_client(dpc->saa7111a);
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printk("dpc: found 'dpc7146 demonstration board'-%d.\n",dpc_num);
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dpc_num++;
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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/* the rest */
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dpc->cur_input = 0;
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dpc_init_done(dev);
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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return 0;
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}
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static int dpc_detach(struct saa7146_dev* dev)
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{
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struct dpc* dpc = (struct dpc*)dev->ext_priv;
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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DEB_EE(("dev:%p\n",dev));
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i2c_release_client(dpc->saa7111a);
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saa7146_unregister_device(&dpc->video_dev,dev);
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if( 0 != DPC_BOARD_CAN_DO_VBI(dev)) {
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saa7146_unregister_device(&dpc->vbi_dev,dev);
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}
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saa7146_vv_release(dev);
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dpc_num--;
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i2c_del_adapter(&dpc->i2c_adapter);
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kfree(dpc);
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return 0;
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}
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#ifdef axa
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int dpc_vbi_bypass(struct saa7146_dev* dev)
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{
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struct dpc* dpc = (struct dpc*)dev->ext_priv;
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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int i = 1;
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/* switch bypass in saa7111a */
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if ( 0 != dpc->saa7111a->driver->command(dpc->saa7111a,SAA711X_VBI_BYPASS, &i)) {
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printk("dpc_v4l2.o: VBI_BYPASS: could not address saa7111a.\n");
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return -1;
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2006-03-17 08:37:02 -05:00
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}
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2005-04-16 18:20:36 -04:00
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return 0;
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}
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#endif
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2006-03-17 08:37:02 -05:00
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static int dpc_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
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2005-04-16 18:20:36 -04:00
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{
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struct saa7146_dev *dev = fh->dev;
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struct dpc* dpc = (struct dpc*)dev->ext_priv;
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/*
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2006-03-17 08:37:02 -05:00
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struct saa7146_vv *vv = dev->vv_data;
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2005-04-16 18:20:36 -04:00
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*/
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switch(cmd)
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{
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case VIDIOC_ENUMINPUT:
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{
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struct v4l2_input *i = arg;
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DEB_EE(("VIDIOC_ENUMINPUT %d.\n",i->index));
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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if( i->index < 0 || i->index >= DPC_INPUTS) {
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return -EINVAL;
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}
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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memcpy(i, &dpc_inputs[i->index], sizeof(struct v4l2_input));
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DEB_D(("dpc_v4l2.o: v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n",i->index));
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return 0;
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}
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case VIDIOC_G_INPUT:
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{
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int *input = (int *)arg;
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*input = dpc->cur_input;
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DEB_D(("dpc_v4l2.o: VIDIOC_G_INPUT: %d\n",*input));
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return 0;
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}
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case VIDIOC_S_INPUT:
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{
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int input = *(int *)arg;
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if (input < 0 || input >= DPC_INPUTS) {
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return -EINVAL;
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}
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2006-03-17 08:37:02 -05:00
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2005-04-16 18:20:36 -04:00
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dpc->cur_input = input;
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/* fixme: switch input here, switch audio, too! */
|
|
|
|
// saa7146_set_hps_source_and_sync(dev, input_port_selection[input].hps_source, input_port_selection[input].hps_sync);
|
|
|
|
printk("dpc_v4l2.o: VIDIOC_S_INPUT: fixme switch input.\n");
|
2006-03-17 08:37:02 -05:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
/*
|
|
|
|
DEB_D(("dpc_v4l2.o: v4l2_ioctl does not handle this ioctl.\n"));
|
|
|
|
*/
|
|
|
|
return -ENOIOCTLCMD;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int std_callback(struct saa7146_dev* dev, struct saa7146_standard *std)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct saa7146_standard standard[] = {
|
|
|
|
{
|
|
|
|
.name = "PAL", .id = V4L2_STD_PAL,
|
|
|
|
.v_offset = 0x17, .v_field = 288,
|
|
|
|
.h_offset = 0x14, .h_pixels = 680,
|
|
|
|
.v_max_out = 576, .h_max_out = 768,
|
|
|
|
}, {
|
|
|
|
.name = "NTSC", .id = V4L2_STD_NTSC,
|
|
|
|
.v_offset = 0x16, .v_field = 240,
|
|
|
|
.h_offset = 0x06, .h_pixels = 708,
|
|
|
|
.v_max_out = 480, .h_max_out = 640,
|
|
|
|
}, {
|
|
|
|
.name = "SECAM", .id = V4L2_STD_SECAM,
|
|
|
|
.v_offset = 0x14, .v_field = 288,
|
|
|
|
.h_offset = 0x14, .h_pixels = 720,
|
|
|
|
.v_max_out = 576, .h_max_out = 768,
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct saa7146_extension extension;
|
|
|
|
|
|
|
|
static struct saa7146_pci_extension_data dpc = {
|
2006-03-17 08:37:02 -05:00
|
|
|
.ext_priv = "Multimedia eXtension Board",
|
|
|
|
.ext = &extension,
|
2005-04-16 18:20:36 -04:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct pci_device_id pci_tbl[] = {
|
|
|
|
{
|
|
|
|
.vendor = PCI_VENDOR_ID_PHILIPS,
|
|
|
|
.device = PCI_DEVICE_ID_PHILIPS_SAA7146,
|
|
|
|
.subvendor = 0x0000,
|
|
|
|
.subdevice = 0x0000,
|
|
|
|
.driver_data = (unsigned long)&dpc,
|
|
|
|
}, {
|
|
|
|
.vendor = 0,
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
MODULE_DEVICE_TABLE(pci, pci_tbl);
|
|
|
|
|
|
|
|
static struct saa7146_ext_vv vv_data = {
|
|
|
|
.inputs = DPC_INPUTS,
|
|
|
|
.capabilities = V4L2_CAP_VBI_CAPTURE,
|
|
|
|
.stds = &standard[0],
|
|
|
|
.num_stds = sizeof(standard)/sizeof(struct saa7146_standard),
|
2006-03-17 08:37:02 -05:00
|
|
|
.std_callback = &std_callback,
|
2005-04-16 18:20:36 -04:00
|
|
|
.ioctls = &ioctls[0],
|
|
|
|
.ioctl = dpc_ioctl,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct saa7146_extension extension = {
|
|
|
|
.name = "dpc7146 demonstration board",
|
|
|
|
.flags = SAA7146_USE_I2C_IRQ,
|
2006-03-17 08:37:02 -05:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
.pci_tbl = &pci_tbl[0],
|
|
|
|
.module = THIS_MODULE,
|
|
|
|
|
|
|
|
.probe = dpc_probe,
|
|
|
|
.attach = dpc_attach,
|
|
|
|
.detach = dpc_detach,
|
|
|
|
|
|
|
|
.irq_mask = 0,
|
|
|
|
.irq_func = NULL,
|
2006-03-17 08:37:02 -05:00
|
|
|
};
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
static int __init dpc_init_module(void)
|
|
|
|
{
|
|
|
|
if( 0 != saa7146_register_extension(&extension)) {
|
|
|
|
DEB_S(("failed to register extension.\n"));
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
2006-03-17 08:37:02 -05:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit dpc_cleanup_module(void)
|
|
|
|
{
|
|
|
|
saa7146_unregister_extension(&extension);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(dpc_init_module);
|
|
|
|
module_exit(dpc_cleanup_module);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("video4linux-2 driver for the 'dpc7146 demonstration board'");
|
|
|
|
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
|
|
|
|
MODULE_LICENSE("GPL");
|