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Diffstat (limited to 'drivers/media/video/dpc7146.c')
-rw-r--r--drivers/media/video/dpc7146.c401
1 files changed, 401 insertions, 0 deletions
diff --git a/drivers/media/video/dpc7146.c b/drivers/media/video/dpc7146.c
new file mode 100644
index 00000000000..da9481198c5
--- /dev/null
+++ b/drivers/media/video/dpc7146.c
@@ -0,0 +1,401 @@
+/*
+ dpc7146.c - v4l2 driver for the dpc7146 demonstration board
+
+ Copyright (C) 2000-2003 Michael Hunold <michael@mihu.de>
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#define DEBUG_VARIABLE debug
+
+#include <media/saa7146_vv.h>
+#include <linux/video_decoder.h> /* for saa7111a */
+
+#define I2C_SAA7111A 0x24
+
+/* All unused bytes are reserverd. */
+#define SAA711X_CHIP_VERSION 0x00
+#define SAA711X_ANALOG_INPUT_CONTROL_1 0x02
+#define SAA711X_ANALOG_INPUT_CONTROL_2 0x03
+#define SAA711X_ANALOG_INPUT_CONTROL_3 0x04
+#define SAA711X_ANALOG_INPUT_CONTROL_4 0x05
+#define SAA711X_HORIZONTAL_SYNC_START 0x06
+#define SAA711X_HORIZONTAL_SYNC_STOP 0x07
+#define SAA711X_SYNC_CONTROL 0x08
+#define SAA711X_LUMINANCE_CONTROL 0x09
+#define SAA711X_LUMINANCE_BRIGHTNESS 0x0A
+#define SAA711X_LUMINANCE_CONTRAST 0x0B
+#define SAA711X_CHROMA_SATURATION 0x0C
+#define SAA711X_CHROMA_HUE_CONTROL 0x0D
+#define SAA711X_CHROMA_CONTROL 0x0E
+#define SAA711X_FORMAT_DELAY_CONTROL 0x10
+#define SAA711X_OUTPUT_CONTROL_1 0x11
+#define SAA711X_OUTPUT_CONTROL_2 0x12
+#define SAA711X_OUTPUT_CONTROL_3 0x13
+#define SAA711X_V_GATE_1_START 0x15
+#define SAA711X_V_GATE_1_STOP 0x16
+#define SAA711X_V_GATE_1_MSB 0x17
+#define SAA711X_TEXT_SLICER_STATUS 0x1A
+#define SAA711X_DECODED_BYTES_OF_TS_1 0x1B
+#define SAA711X_DECODED_BYTES_OF_TS_2 0x1C
+#define SAA711X_STATUS_BYTE 0x1F
+
+#define DPC_BOARD_CAN_DO_VBI(dev) (dev->revision != 0)
+
+static int debug = 0;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "debug verbosity");
+
+static int dpc_num = 0;
+
+#define DPC_INPUTS 2
+static struct v4l2_input dpc_inputs[DPC_INPUTS] = {
+ { 0, "Port A", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
+ { 1, "Port B", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
+};
+
+#define DPC_AUDIOS 0
+
+static struct saa7146_extension_ioctls ioctls[] = {
+ { VIDIOC_G_INPUT, SAA7146_EXCLUSIVE },
+ { VIDIOC_S_INPUT, SAA7146_EXCLUSIVE },
+ { VIDIOC_ENUMINPUT, SAA7146_EXCLUSIVE },
+ { VIDIOC_S_STD, SAA7146_AFTER },
+ { 0, 0 }
+};
+
+struct dpc
+{
+ struct video_device *video_dev;
+ struct video_device *vbi_dev;
+
+ struct i2c_adapter i2c_adapter;
+ struct i2c_client *saa7111a;
+
+ int cur_input; /* current input */
+};
+
+/* fixme: add vbi stuff here */
+static int dpc_probe(struct saa7146_dev* dev)
+{
+ struct dpc* dpc = NULL;
+ struct i2c_client *client;
+ struct list_head *item;
+
+ dpc = (struct dpc*)kmalloc(sizeof(struct dpc), GFP_KERNEL);
+ if( NULL == dpc ) {
+ printk("dpc_v4l2.o: dpc_probe: not enough kernel memory.\n");
+ return -ENOMEM;
+ }
+ memset(dpc, 0x0, sizeof(struct dpc));
+
+ /* FIXME: enable i2c-port pins, video-port-pins
+ video port pins should be enabled here ?! */
+ saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26));
+
+ dpc->i2c_adapter = (struct i2c_adapter) {
+ .class = I2C_CLASS_TV_ANALOG,
+ .name = "dpc7146",
+ };
+ saa7146_i2c_adapter_prepare(dev, &dpc->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
+ if(i2c_add_adapter(&dpc->i2c_adapter) < 0) {
+ DEB_S(("cannot register i2c-device. skipping.\n"));
+ kfree(dpc);
+ return -EFAULT;
+ }
+
+ /* loop through all i2c-devices on the bus and look who is there */
+ list_for_each(item,&dpc->i2c_adapter.clients) {
+ client = list_entry(item, struct i2c_client, list);
+ if( I2C_SAA7111A == client->addr )
+ dpc->saa7111a = client;
+ }
+
+ /* check if all devices are present */
+ if( 0 == dpc->saa7111a ) {
+ DEB_D(("dpc_v4l2.o: dpc_attach failed for this device.\n"));
+ i2c_del_adapter(&dpc->i2c_adapter);
+ kfree(dpc);
+ return -ENODEV;
+ }
+
+ /* all devices are present, probe was successful */
+ DEB_D(("dpc_v4l2.o: dpc_probe succeeded for this device.\n"));
+
+ /* we store the pointer in our private data field */
+ dev->ext_priv = dpc;
+
+ return 0;
+}
+
+/* bring hardware to a sane state. this has to be done, just in case someone
+ wants to capture from this device before it has been properly initialized.
+ the capture engine would badly fail, because no valid signal arrives on the
+ saa7146, thus leading to timeouts and stuff. */
+static int dpc_init_done(struct saa7146_dev* dev)
+{
+ struct dpc* dpc = (struct dpc*)dev->ext_priv;
+
+ DEB_D(("dpc_v4l2.o: dpc_init_done called.\n"));
+
+ /* initialize the helper ics to useful values */
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x00, 0x11);
+
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x02, 0xc0);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x03, 0x30);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x04, 0x00);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x05, 0x00);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x06, 0xde);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x07, 0xad);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x08, 0xa8);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x09, 0x00);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x0a, 0x80);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x0b, 0x47);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x0c, 0x40);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x0d, 0x00);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x0e, 0x03);
+
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x10, 0xd0);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x11, 0x1c);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x12, 0xc1);
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x13, 0x30);
+
+ i2c_smbus_write_byte_data(dpc->saa7111a, 0x1f, 0x81);
+
+ return 0;
+}
+
+static struct saa7146_ext_vv vv_data;
+
+/* this function only gets called when the probing was successful */
+static int dpc_attach(struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
+{
+ struct dpc* dpc = (struct dpc*)dev->ext_priv;
+
+ DEB_D(("dpc_v4l2.o: dpc_attach called.\n"));
+
+ /* checking for i2c-devices can be omitted here, because we
+ already did this in "dpc_vl42_probe" */
+
+ saa7146_vv_init(dev,&vv_data);
+ if( 0 != saa7146_register_device(&dpc->video_dev, dev, "dpc", VFL_TYPE_GRABBER)) {
+ ERR(("cannot register capture v4l2 device. skipping.\n"));
+ return -1;
+ }
+
+ /* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
+ if( 0 != DPC_BOARD_CAN_DO_VBI(dev)) {
+ if( 0 != saa7146_register_device(&dpc->vbi_dev, dev, "dpc", VFL_TYPE_VBI)) {
+ ERR(("cannot register vbi v4l2 device. skipping.\n"));
+ }
+ }
+
+ i2c_use_client(dpc->saa7111a);
+
+ printk("dpc: found 'dpc7146 demonstration board'-%d.\n",dpc_num);
+ dpc_num++;
+
+ /* the rest */
+ dpc->cur_input = 0;
+ dpc_init_done(dev);
+
+ return 0;
+}
+
+static int dpc_detach(struct saa7146_dev* dev)
+{
+ struct dpc* dpc = (struct dpc*)dev->ext_priv;
+
+ DEB_EE(("dev:%p\n",dev));
+
+ i2c_release_client(dpc->saa7111a);
+
+ saa7146_unregister_device(&dpc->video_dev,dev);
+ if( 0 != DPC_BOARD_CAN_DO_VBI(dev)) {
+ saa7146_unregister_device(&dpc->vbi_dev,dev);
+ }
+ saa7146_vv_release(dev);
+
+ dpc_num--;
+
+ i2c_del_adapter(&dpc->i2c_adapter);
+ kfree(dpc);
+ return 0;
+}
+
+#ifdef axa
+int dpc_vbi_bypass(struct saa7146_dev* dev)
+{
+ struct dpc* dpc = (struct dpc*)dev->ext_priv;
+
+ int i = 1;
+
+ /* switch bypass in saa7111a */
+ if ( 0 != dpc->saa7111a->driver->command(dpc->saa7111a,SAA711X_VBI_BYPASS, &i)) {
+ printk("dpc_v4l2.o: VBI_BYPASS: could not address saa7111a.\n");
+ return -1;
+ }
+
+ return 0;
+}
+#endif
+
+static int dpc_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
+{
+ struct saa7146_dev *dev = fh->dev;
+ struct dpc* dpc = (struct dpc*)dev->ext_priv;
+/*
+ struct saa7146_vv *vv = dev->vv_data;
+*/
+ switch(cmd)
+ {
+ case VIDIOC_ENUMINPUT:
+ {
+ struct v4l2_input *i = arg;
+ DEB_EE(("VIDIOC_ENUMINPUT %d.\n",i->index));
+
+ if( i->index < 0 || i->index >= DPC_INPUTS) {
+ return -EINVAL;
+ }
+
+ memcpy(i, &dpc_inputs[i->index], sizeof(struct v4l2_input));
+
+ DEB_D(("dpc_v4l2.o: v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n",i->index));
+ return 0;
+ }
+ case VIDIOC_G_INPUT:
+ {
+ int *input = (int *)arg;
+ *input = dpc->cur_input;
+
+ DEB_D(("dpc_v4l2.o: VIDIOC_G_INPUT: %d\n",*input));
+ return 0;
+ }
+ case VIDIOC_S_INPUT:
+ {
+ int input = *(int *)arg;
+
+ if (input < 0 || input >= DPC_INPUTS) {
+ return -EINVAL;
+ }
+
+ dpc->cur_input = input;
+
+ /* 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");
+
+ 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 = {
+ .ext_priv = "Multimedia eXtension Board",
+ .ext = &extension,
+};
+
+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),
+ .std_callback = &std_callback,
+ .ioctls = &ioctls[0],
+ .ioctl = dpc_ioctl,
+};
+
+static struct saa7146_extension extension = {
+ .name = "dpc7146 demonstration board",
+ .flags = SAA7146_USE_I2C_IRQ,
+
+ .pci_tbl = &pci_tbl[0],
+ .module = THIS_MODULE,
+
+ .probe = dpc_probe,
+ .attach = dpc_attach,
+ .detach = dpc_detach,
+
+ .irq_mask = 0,
+ .irq_func = NULL,
+};
+
+static int __init dpc_init_module(void)
+{
+ if( 0 != saa7146_register_extension(&extension)) {
+ DEB_S(("failed to register extension.\n"));
+ return -ENODEV;
+ }
+
+ 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");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 09:08:47 +0000