diff options
| author | Antti Palosaari <crope@iki.fi> | 2013-03-07 19:22:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-21 19:01:58 -0300 |
| commit | 70375ecc452128d855f89e04b31a0961501cc153 (patch) | |
| tree | 276e927e0f7820956895bbd4e67728fb5399eb10 | |
| parent | 1c72fe2679996a125219caaede542ad6913a3539 (diff) | |
[media] af9035: change dual mode boolean to bit field
For some reason there seems to be value 0x03 in eeprom for dual mode
(and 0x00 for single mode). Boolean is not always 1 bit wide - it
could be 8 bit wide too. Storing number 0x03 to boolean causes driver
to thing there is 4 tuners in some cases :o
Add also some comments regarding to eeprom.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/usb/dvb-usb-v2/af9035.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/af9035.h b/drivers/media/usb/dvb-usb-v2/af9035.h index 2f7d269c7d60..0f42b6cb3708 100644 --- a/drivers/media/usb/dvb-usb-v2/af9035.h +++ b/drivers/media/usb/dvb-usb-v2/af9035.h @@ -59,7 +59,7 @@ struct state { u8 prechip_version; u8 chip_version; u16 chip_type; - bool dual_mode; + u8 dual_mode:1; u16 eeprom_addr; struct af9033_config af9033_config[2]; }; @@ -96,6 +96,14 @@ static const u32 clock_lut_it9135[] = { #define AF9035_FIRMWARE_IT9135_V1 "dvb-usb-it9135-01.fw" #define AF9035_FIRMWARE_IT9135_V2 "dvb-usb-it9135-02.fw" +/* + * eeprom is memory mapped as read only. Writing that memory mapped address + * will not corrupt eeprom. + * + * eeprom has value 0x00 single mode and 0x03 for dual mode as far as I have + * seen to this day. + */ + #define EEPROM_BASE_AF9035 0x42fd #define EEPROM_BASE_IT9135 0x499c #define EEPROM_SHIFT 0x10 |