diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-05 09:55:28 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-18 21:56:27 (GMT) |
| commit | aab3125c43d8fecc7134e5f1e729fabf4dd196da (patch) | |
| tree | aa14380de564ee7e3db8b8ec1152e3a5549c4b32 /drivers/media/usb/em28xx/em28xx.h | |
| parent | 3aa2b3b9cc7cf58d044f30dcad849bff037abd25 (diff) | |
| download | linux-fsl-qoriq-aab3125c43d8fecc7134e5f1e729fabf4dd196da.tar.xz | |
[media] em28xx: add support for registering multiple i2c buses
Register both buses 0 and 1 via I2C API. For now, bus 0 is used
only by eeprom on all known devices. Later patches will be needed
if this changes in the future.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index 43eb1c6..f6ac1df 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -375,7 +375,7 @@ struct em28xx_board { int vchannels; int tuner_type; int tuner_addr; - int def_i2c_bus; /* Default I2C bus */ + unsigned def_i2c_bus; /* Default I2C bus */ /* i2c flags */ unsigned int tda9887_conf; @@ -460,6 +460,13 @@ struct em28xx_fh { enum v4l2_buf_type type; }; +struct em28xx_i2c_bus { + struct em28xx *dev; + + unsigned bus; +}; + + /* main device struct */ struct em28xx { /* generic device properties */ @@ -515,8 +522,12 @@ struct em28xx { /* i2c i/o */ struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; struct i2c_client i2c_client[NUM_I2C_BUSES]; + struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; + unsigned char eeprom_addrwidth_16bit:1; - int def_i2c_bus; /* Default I2C bus */ + unsigned def_i2c_bus; /* Default I2C bus */ + unsigned cur_i2c_bus; /* Current I2C bus */ + struct rt_mutex i2c_bus_lock; /* video for linux */ int users; /* user count for exclusive use */ @@ -638,9 +649,9 @@ struct em28xx_ops { }; /* Provided by em28xx-i2c.c */ -void em28xx_do_i2c_scan(struct em28xx *dev); -int em28xx_i2c_register(struct em28xx *dev); -int em28xx_i2c_unregister(struct em28xx *dev); +void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); +int em28xx_i2c_register(struct em28xx *dev, unsigned bus); +int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); /* Provided by em28xx-core.c */ int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, |