diff options
Diffstat (limited to 'drivers/media/video/tea6415c.c')
| -rw-r--r-- | drivers/media/video/tea6415c.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c deleted file mode 100644 index d1d6ea1dd273..000000000000 --- a/drivers/media/video/tea6415c.c +++ /dev/null @@ -1,187 +0,0 @@ - /* - tea6415c - i2c-driver for the tea6415c by SGS Thomson - - Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de> - Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl> - - The tea6415c is a bus controlled video-matrix-switch - with 8 inputs and 6 outputs. - It is cascadable, i.e. it can be found at the addresses - 0x86 and 0x06 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 vs 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 Mvss Ave, Cambridge, MA 02139, USA. - */ - - -#include <linux/module.h> -#include <linux/ioctl.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include "tea6415c.h" - -MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); -MODULE_DESCRIPTION("tea6415c driver"); -MODULE_LICENSE("GPL"); - -static int debug; -module_param(debug, int, 0644); - -MODULE_PARM_DESC(debug, "Debug level (0-1)"); - - -/* makes a connection between the input-pin 'i' and the output-pin 'o' */ -static int tea6415c_s_routing(struct v4l2_subdev *sd, - u32 i, u32 o, u32 config) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - u8 byte = 0; - int ret; - - v4l2_dbg(1, debug, sd, "i=%d, o=%d\n", i, o); - - /* check if the pins are valid */ - if (0 == ((1 == i || 3 == i || 5 == i || 6 == i || 8 == i || 10 == i || 20 == i || 11 == i) - && (18 == o || 17 == o || 16 == o || 15 == o || 14 == o || 13 == o))) - return -EINVAL; - - /* to understand this, have a look at the tea6415c-specs (p.5) */ - switch (o) { - case 18: - byte = 0x00; - break; - case 14: - byte = 0x20; - break; - case 16: - byte = 0x10; - break; - case 17: - byte = 0x08; - break; - case 15: - byte = 0x18; - break; - case 13: - byte = 0x28; - break; - }; - - switch (i) { - case 5: - byte |= 0x00; - break; - case 8: - byte |= 0x04; - break; - case 3: - byte |= 0x02; - break; - case 20: - byte |= 0x06; - break; - case 6: - byte |= 0x01; - break; - case 10: - byte |= 0x05; - break; - case 1: - byte |= 0x03; - break; - case 11: - byte |= 0x07; - break; - }; - - ret = i2c_smbus_write_byte(client, byte); - if (ret) { - v4l2_dbg(1, debug, sd, - "i2c_smbus_write_byte() failed, ret:%d\n", ret); - return -EIO; - } - return ret; -} - -static int tea6415c_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TEA6415C, 0); -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_subdev_core_ops tea6415c_core_ops = { - .g_chip_ident = tea6415c_g_chip_ident, -}; - -static const struct v4l2_subdev_video_ops tea6415c_video_ops = { - .s_routing = tea6415c_s_routing, -}; - -static const struct v4l2_subdev_ops tea6415c_ops = { - .core = &tea6415c_core_ops, - .video = &tea6415c_video_ops, -}; - -static int tea6415c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct v4l2_subdev *sd; - - /* let's see whether this adapter can support what we need */ - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WRITE_BYTE)) - return -EIO; - - v4l_info(client, "chip found @ 0x%x (%s)\n", - client->addr << 1, client->adapter->name); - sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); - if (sd == NULL) - return -ENOMEM; - v4l2_i2c_subdev_init(sd, client, &tea6415c_ops); - return 0; -} - -static int tea6415c_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - - v4l2_device_unregister_subdev(sd); - kfree(sd); - return 0; -} - -static const struct i2c_device_id tea6415c_id[] = { - { "tea6415c", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, tea6415c_id); - -static struct i2c_driver tea6415c_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "tea6415c", - }, - .probe = tea6415c_probe, - .remove = tea6415c_remove, - .id_table = tea6415c_id, -}; - -module_i2c_driver(tea6415c_driver); |