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Diffstat (limited to 'drivers/media/video/tda9840.c')
-rw-r--r--drivers/media/video/tda9840.c271
1 files changed, 0 insertions, 271 deletions
diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c
deleted file mode 100644
index 6afb7059502..00000000000
--- a/drivers/media/video/tda9840.c
+++ /dev/null
@@ -1,271 +0,0 @@
- /*
- tda9840 - i2c-driver for the tda9840 by SGS Thomson
-
- Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>
- Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
-
- The tda9840 is a stereo/dual sound processor with digital
- identification. It can be found at address 0x84 on the i2c-bus.
-
- For detailed informations download the specifications directly
- from SGS Thomson at http://www.st.com
-
- 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.
- */
-
-
-#include <linux/module.h>
-#include <linux/ioctl.h>
-#include <linux/i2c.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-i2c-drv-legacy.h>
-#include "tda9840.h"
-
-MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
-MODULE_DESCRIPTION("tda9840 driver");
-MODULE_LICENSE("GPL");
-
-static int debug;
-module_param(debug, int, 0644);
-
-MODULE_PARM_DESC(debug, "Debug level (0-1)");
-
-#define SWITCH 0x00
-#define LEVEL_ADJUST 0x02
-#define STEREO_ADJUST 0x03
-#define TEST 0x04
-
-#define TDA9840_SET_MUTE 0x00
-#define TDA9840_SET_MONO 0x10
-#define TDA9840_SET_STEREO 0x2a
-#define TDA9840_SET_LANG1 0x12
-#define TDA9840_SET_LANG2 0x1e
-#define TDA9840_SET_BOTH 0x1a
-#define TDA9840_SET_BOTH_R 0x16
-#define TDA9840_SET_EXTERNAL 0x7a
-
-/* addresses to scan, found only at 0x42 (7-Bit) */
-static unsigned short normal_i2c[] = { I2C_ADDR_TDA9840, I2C_CLIENT_END };
-
-/* magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
-
-static void tda9840_write(struct v4l2_subdev *sd, u8 reg, u8 val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (i2c_smbus_write_byte_data(client, reg, val))
- v4l2_dbg(1, debug, sd, "error writing %02x to %02x\n",
- val, reg);
-}
-
-static int tda9840_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *t)
-{
- int byte;
-
- if (t->index)
- return -EINVAL;
-
- switch (t->audmode) {
- case V4L2_TUNER_MODE_STEREO:
- byte = TDA9840_SET_STEREO;
- break;
- case V4L2_TUNER_MODE_LANG1_LANG2:
- byte = TDA9840_SET_BOTH;
- break;
- case V4L2_TUNER_MODE_LANG1:
- byte = TDA9840_SET_LANG1;
- break;
- case V4L2_TUNER_MODE_LANG2:
- byte = TDA9840_SET_LANG2;
- break;
- default:
- byte = TDA9840_SET_MONO;
- break;
- }
- v4l2_dbg(1, debug, sd, "TDA9840_SWITCH: 0x%02x\n", byte);
- tda9840_write(sd, SWITCH, byte);
- return 0;
-}
-
-static int tda9840_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *t)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- u8 byte;
-
- t->rxsubchans = V4L2_TUNER_SUB_MONO;
- if (1 != i2c_master_recv(client, &byte, 1)) {
- v4l2_dbg(1, debug, sd,
- "i2c_master_recv() failed\n");
- return -EIO;
- }
-
- if (byte & 0x80) {
- v4l2_dbg(1, debug, sd,
- "TDA9840_DETECT: register contents invalid\n");
- return -EINVAL;
- }
-
- v4l2_dbg(1, debug, sd, "TDA9840_DETECT: byte: 0x%02x\n", byte);
-
- switch (byte & 0x60) {
- case 0x00:
- t->rxsubchans = V4L2_TUNER_SUB_MONO;
- break;
- case 0x20:
- t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
- break;
- case 0x40:
- t->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
- break;
- default: /* Incorrect detect */
- t->rxsubchans = V4L2_TUNER_MODE_MONO;
- break;
- }
- return 0;
-}
-
-static long tda9840_ioctl(struct v4l2_subdev *sd, unsigned cmd, void *arg)
-{
- int byte;
-
- switch (cmd) {
- case TDA9840_LEVEL_ADJUST:
- byte = *(int *)arg;
- v4l2_dbg(1, debug, sd, "TDA9840_LEVEL_ADJUST: %d\n", byte);
-
- /* check for correct range */
- if (byte > 25 || byte < -20)
- return -EINVAL;
-
- /* calculate actual value to set, see specs, page 18 */
- byte /= 5;
- if (0 < byte)
- byte += 0x8;
- else
- byte = -byte;
- tda9840_write(sd, LEVEL_ADJUST, byte);
- break;
-
- case TDA9840_STEREO_ADJUST:
- byte = *(int *)arg;
- v4l2_dbg(1, debug, sd, "TDA9840_STEREO_ADJUST: %d\n", byte);
-
- /* check for correct range */
- if (byte > 25 || byte < -24)
- return -EINVAL;
-
- /* calculate actual value to set */
- byte /= 5;
- if (0 < byte)
- byte += 0x20;
- else
- byte = -byte;
-
- tda9840_write(sd, STEREO_ADJUST, byte);
- break;
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static int tda9840_command(struct i2c_client *client, unsigned cmd, void *arg)
-{
- return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
-}
-
-/* ----------------------------------------------------------------------- */
-
-static const struct v4l2_subdev_core_ops tda9840_core_ops = {
- .ioctl = tda9840_ioctl,
-};
-
-static const struct v4l2_subdev_tuner_ops tda9840_tuner_ops = {
- .s_tuner = tda9840_s_tuner,
- .g_tuner = tda9840_g_tuner,
-};
-
-static const struct v4l2_subdev_ops tda9840_ops = {
- .core = &tda9840_core_ops,
- .tuner = &tda9840_tuner_ops,
-};
-
-/* ----------------------------------------------------------------------- */
-
-static int tda9840_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct v4l2_subdev *sd;
- int result;
- int byte;
-
- /* let's see whether this adapter can support what we need */
- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_READ_BYTE_DATA |
- I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
- return -EIO;
-
- v4l_info(client, "chip found @ 0x%x (%s)\n",
- client->addr << 1, client->adapter->name);
-
- sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
- if (sd == NULL)
- return -ENOMEM;
- v4l2_i2c_subdev_init(sd, client, &tda9840_ops);
-
- /* set initial values for level & stereo - adjustment, mode */
- byte = 0;
- result = tda9840_ioctl(sd, TDA9840_LEVEL_ADJUST, &byte);
- result |= tda9840_ioctl(sd, TDA9840_STEREO_ADJUST, &byte);
- tda9840_write(sd, SWITCH, TDA9840_SET_STEREO);
- if (result) {
- v4l2_dbg(1, debug, sd, "could not initialize tda9840\n");
- kfree(sd);
- return -ENODEV;
- }
- return 0;
-}
-
-static int tda9840_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
-
- v4l2_device_unregister_subdev(sd);
- kfree(sd);
- return 0;
-}
-
-static int tda9840_legacy_probe(struct i2c_adapter *adapter)
-{
- /* Let's see whether this is a known adapter we can attach to.
- Prevents conflicts with tvaudio.c. */
- return adapter->id == I2C_HW_SAA7146;
-}
-static const struct i2c_device_id tda9840_id[] = {
- { "tda9840", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, tda9840_id);
-
-static struct v4l2_i2c_driver_data v4l2_i2c_data = {
- .name = "tda9840",
- .driverid = I2C_DRIVERID_TDA9840,
- .command = tda9840_command,
- .probe = tda9840_probe,
- .remove = tda9840_remove,
- .legacy_probe = tda9840_legacy_probe,
- .id_table = tda9840_id,
-};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-11 02:31:54 +0000