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[media] em28xx: add support for Hauppauge WinTV-dualHD DVB tuner

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Hauppauge WinTV-dualHD is a USB 2.0 dual DVB-T/T2/C tuner with
following components:

USB bridge: Empia EM28274 (chip id is the same as EM28174)
Demodulator: 2x Silicon Labs Si2168-B40
Tuner: 2x Silicon Labs Si2157-A30

This patch adds support only for the first tuner.

The demodulator needs firmware, available for example here:
http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-B40/4.0.11/

The demodulators sit on the same I2C bus and their addresses
are 0x64 and 0x67. The tuners are behind the demodulators and
their addresses are 0x60 and 0x63.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Olli Salonen
2016-04-04 12:12:52 -03:00
committed by Mauro Carvalho Chehab
parent 628288d08a
commit 11a2a949d0
5 changed files with 138 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
drivers/media/usb/em28xx/em28xx-dvb.c
View File

@@ -1883,6 +1883,70 @@ static int em28xx_dvb_init(struct em28xx *dev)
px_bcud_init(dev);
}
break;
case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB:
{
struct i2c_adapter *adapter;
struct i2c_client *client;
struct i2c_board_info info;
struct si2168_config si2168_config;
struct si2157_config si2157_config;
/* attach demod */
memset(&si2168_config, 0, sizeof(si2168_config));
si2168_config.i2c_adapter = &adapter;
si2168_config.fe = &dvb->fe[0];
si2168_config.ts_mode = SI2168_TS_SERIAL;
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "si2168", I2C_NAME_SIZE);
info.addr = 0x64;
info.platform_data = &si2168_config;
request_module(info.type);
client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
if (client == NULL || client->dev.driver == NULL) {
result = -ENODEV;
goto out_free;
}
if (!try_module_get(client->dev.driver->owner)) {
i2c_unregister_device(client);
result = -ENODEV;
goto out_free;
}
dvb->i2c_client_demod = client;
/* attach tuner */
memset(&si2157_config, 0, sizeof(si2157_config));
si2157_config.fe = dvb->fe[0];
si2157_config.if_port = 1;
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
si2157_config.mdev = dev->media_dev;
#endif
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "si2157", I2C_NAME_SIZE);
info.addr = 0x60;
info.platform_data = &si2157_config;
request_module(info.type);
client = i2c_new_device(adapter, &info);
if (client == NULL || client->dev.driver == NULL) {
module_put(dvb->i2c_client_demod->dev.driver->owner);
i2c_unregister_device(dvb->i2c_client_demod);
result = -ENODEV;
goto out_free;
}
if (!try_module_get(client->dev.driver->owner)) {
i2c_unregister_device(client);
module_put(dvb->i2c_client_demod->dev.driver->owner);
i2c_unregister_device(dvb->i2c_client_demod);
result = -ENODEV;
goto out_free;
}
dvb->i2c_client_tuner = client;
}
break;
default:
em28xx_errdev("/2: The frontend of your DVB/ATSC card"
" isn't supported yet\n");