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| author | Patrick Boettcher <pb@linuxtv.org> | 2009-02-28 14:19:30 +0100 |
|---|---|---|
| committer | Patrick Boettcher <pb@linuxtv.org> | 2009-02-28 14:19:30 +0100 |
| commit | 6c7ed65e3ea76c36aec18b3c7d7fc97af216bf05 (patch) | |
| tree | 611afce82b12d708256c5deb7289183fc96548c4 /linux/drivers/media | |
| parent | 4d68602c04515adbfc2054fac35937ce762b2093 (diff) | |
| download | mediapointer-dvb-s2-6c7ed65e3ea76c36aec18b3c7d7fc97af216bf05.tar.gz mediapointer-dvb-s2-6c7ed65e3ea76c36aec18b3c7d7fc97af216bf05.tar.bz2 | |
Fix i2c code of flexcop-driver for rare revisions
From: Patrick Boettcher <pb@linuxtv.org>
This patch adds a workaround in the i2c-code of the flexcop-driver to
fix support for SkyStar2 rev 2.7. There are not many devices out
there, that's why this bug was not revealed earlier.
Priority: high
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Diffstat (limited to 'linux/drivers/media')
| -rw-r--r-- | linux/drivers/media/dvb/b2c2/flexcop-i2c.c | 12 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/itd1000_priv.h | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/linux/drivers/media/dvb/b2c2/flexcop-i2c.c b/linux/drivers/media/dvb/b2c2/flexcop-i2c.c index 01d27613f..1c07eeafc 100644 --- a/linux/drivers/media/dvb/b2c2/flexcop-i2c.c +++ b/linux/drivers/media/dvb/b2c2/flexcop-i2c.c @@ -47,6 +47,18 @@ static int flexcop_i2c_read4(struct flexcop_i2c_adapter *i2c, int len = r100.tw_sm_c_100.total_bytes, /* remember total_bytes is buflen-1 */ ret; + /* work-around to have CableStar2 and SkyStar2 rev 2.7 work + * correctly: + * + * the ITD1000 is behind an i2c-gate which closes automatically + * after an i2c-transaction the STV0297 needs 2 consecutive reads + * one with no_base_addr = 0 and one with 1 + * + * those two work-arounds are conflictin: we check for the card + * type, it is set when probing the ITD1000 */ + if (i2c->fc->dev_type == FC_SKY_REV27) + r100.tw_sm_c_100.no_base_addr_ack_error = i2c->no_base_addr; + ret = flexcop_i2c_operation(i2c->fc, &r100); if (ret != 0) { deb_i2c("Retrying operation\n"); diff --git a/linux/drivers/media/dvb/frontends/itd1000_priv.h b/linux/drivers/media/dvb/frontends/itd1000_priv.h index 8cdc54e57..08ca85122 100644 --- a/linux/drivers/media/dvb/frontends/itd1000_priv.h +++ b/linux/drivers/media/dvb/frontends/itd1000_priv.h @@ -31,7 +31,7 @@ struct itd1000_state { /* ugly workaround for flexcop's incapable i2c-controller * FIXME, if possible */ - u8 shadow[255]; + u8 shadow[256]; }; enum itd1000_register { |