-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
This device is internal to the Panasonic VP27S tuner and is used to set the mono/stereo/bilingual setting of the tuner. It is used by two Japanese cx23416-based cards. Signed-off-by: Takahiro Adachi <tadachi@tadachi-net.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
- Loading branch information
Hans Verkuil
authored and
Mauro Carvalho Chehab
committed
Oct 10, 2007
1 parent
b4c8524
commit ac24743
Showing
10 changed files
with
236 additions
and
3 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,211 @@ | ||
| /* | ||
| * vp27smpx - driver version 0.0.1 | ||
| * | ||
| * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> | ||
| * | ||
| * Special thanks to Kazz for the i2c data. | ||
| * | ||
| * 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/types.h> | ||
| #include <linux/ioctl.h> | ||
| #include <asm/uaccess.h> | ||
| #include <linux/i2c.h> | ||
| #include <linux/i2c-id.h> | ||
| #include <linux/videodev.h> | ||
| #include <media/v4l2-common.h> | ||
| #include <media/v4l2-chip-ident.h> | ||
|
|
||
| MODULE_DESCRIPTION("vp27smpx driver"); | ||
| MODULE_AUTHOR("Hans Verkuil"); | ||
| MODULE_LICENSE("GPL"); | ||
|
|
||
| static unsigned short normal_i2c[] = { 0xb6 >> 1, I2C_CLIENT_END }; | ||
|
|
||
|
|
||
| I2C_CLIENT_INSMOD; | ||
|
|
||
| /* ----------------------------------------------------------------------- */ | ||
|
|
||
| struct vp27smpx_state { | ||
| int radio; | ||
| u32 audmode; | ||
| }; | ||
|
|
||
| static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode) | ||
| { | ||
| struct vp27smpx_state *state = i2c_get_clientdata(client); | ||
| u8 data[3] = { 0x00, 0x00, 0x04 }; | ||
|
|
||
| switch (audmode) { | ||
| case V4L2_TUNER_MODE_MONO: | ||
| case V4L2_TUNER_MODE_LANG1: | ||
| break; | ||
| case V4L2_TUNER_MODE_STEREO: | ||
| case V4L2_TUNER_MODE_LANG1_LANG2: | ||
| data[1] = 0x01; | ||
| break; | ||
| case V4L2_TUNER_MODE_LANG2: | ||
| data[1] = 0x02; | ||
| break; | ||
| } | ||
|
|
||
| if (i2c_master_send(client, data, sizeof(data)) != sizeof(data)) { | ||
| v4l_err(client, "%s: I/O error setting audmode\n", client->name); | ||
| } | ||
| else { | ||
| state->audmode = audmode; | ||
| } | ||
| } | ||
|
|
||
| static int vp27smpx_command(struct i2c_client *client, unsigned int cmd, | ||
| void *arg) | ||
| { | ||
| struct vp27smpx_state *state = i2c_get_clientdata(client); | ||
| struct v4l2_tuner *vt = arg; | ||
|
|
||
| switch (cmd) { | ||
| case AUDC_SET_RADIO: | ||
| state->radio = 1; | ||
| break; | ||
|
|
||
| case VIDIOC_S_STD: | ||
| state->radio = 0; | ||
| break; | ||
|
|
||
| case VIDIOC_S_TUNER: | ||
| if (!state->radio) | ||
| vp27smpx_set_audmode(client, vt->audmode); | ||
| break; | ||
|
|
||
| case VIDIOC_G_TUNER: | ||
| if (state->radio) | ||
| break; | ||
| vt->audmode = state->audmode; | ||
| vt->capability = V4L2_TUNER_CAP_STEREO | | ||
| V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; | ||
| vt->rxsubchans = V4L2_TUNER_SUB_MONO; | ||
| break; | ||
|
|
||
| case VIDIOC_G_CHIP_IDENT: | ||
| return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_VP27SMPX, 0); | ||
|
|
||
| case VIDIOC_LOG_STATUS: | ||
| v4l_info(client, "Audio Mode: %u%s\n", state->audmode, | ||
| state->radio ? " (Radio)" : ""); | ||
| break; | ||
|
|
||
| default: | ||
| return -EINVAL; | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| /* ----------------------------------------------------------------------- */ | ||
|
|
||
| /* i2c implementation */ | ||
|
|
||
| /* | ||
| * Generic i2c probe | ||
| * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' | ||
| */ | ||
|
|
||
| static struct i2c_driver i2c_driver; | ||
|
|
||
| static int vp27smpx_attach(struct i2c_adapter *adapter, int address, int kind) | ||
| { | ||
| struct i2c_client *client; | ||
| struct vp27smpx_state *state; | ||
|
|
||
| /* Check if the adapter supports the needed features */ | ||
| if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | ||
| return 0; | ||
|
|
||
| client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); | ||
| if (client == 0) | ||
| return -ENOMEM; | ||
|
|
||
| client->addr = address; | ||
| client->adapter = adapter; | ||
| client->driver = &i2c_driver; | ||
| snprintf(client->name, sizeof(client->name) - 1, "vp27smpx"); | ||
|
|
||
| v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name); | ||
|
|
||
| state = kzalloc(sizeof(struct vp27smpx_state), GFP_KERNEL); | ||
| if (state == NULL) { | ||
| kfree(client); | ||
| return -ENOMEM; | ||
| } | ||
| state->audmode = V4L2_TUNER_MODE_STEREO; | ||
| i2c_set_clientdata(client, state); | ||
|
|
||
| /* initialize vp27smpx */ | ||
| vp27smpx_set_audmode(client, state->audmode); | ||
| i2c_attach_client(client); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int vp27smpx_probe(struct i2c_adapter *adapter) | ||
| { | ||
| if (adapter->class & I2C_CLASS_TV_ANALOG) | ||
| return i2c_probe(adapter, &addr_data, vp27smpx_attach); | ||
| return 0; | ||
| } | ||
|
|
||
| static int vp27smpx_detach(struct i2c_client *client) | ||
| { | ||
| struct vp27smpx_state *state = i2c_get_clientdata(client); | ||
| int err; | ||
|
|
||
| err = i2c_detach_client(client); | ||
| if (err) { | ||
| return err; | ||
| } | ||
| kfree(state); | ||
| kfree(client); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| /* ----------------------------------------------------------------------- */ | ||
|
|
||
| /* i2c implementation */ | ||
| static struct i2c_driver i2c_driver = { | ||
| .driver = { | ||
| .name = "vp27smpx", | ||
| }, | ||
| .id = I2C_DRIVERID_VP27SMPX, | ||
| .attach_adapter = vp27smpx_probe, | ||
| .detach_client = vp27smpx_detach, | ||
| .command = vp27smpx_command, | ||
| }; | ||
|
|
||
|
|
||
| static int __init vp27smpx_init_module(void) | ||
| { | ||
| return i2c_add_driver(&i2c_driver); | ||
| } | ||
|
|
||
| static void __exit vp27smpx_cleanup_module(void) | ||
| { | ||
| i2c_del_driver(&i2c_driver); | ||
| } | ||
|
|
||
| module_init(vp27smpx_init_module); | ||
| module_exit(vp27smpx_cleanup_module); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters