diff options
| author | Olli Salonen <olli.salonen@iki.fi> | 2014-11-27 16:42:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-12-04 14:00:01 -0200 |
| commit | 1b97dc98b58dad98f13fa0a4cdc819b60f3f3bff (patch) | |
| tree | 68e4f1d77a42384ccbf6b7e51951ff1ce065b249 /drivers/media | |
| parent | a594cf21aa3c8e0e7510cbd316383fe6efb27f5c (diff) | |
| download | linux-1b97dc98b58dad98f13fa0a4cdc819b60f3f3bff.tar.bz2 | |
[media] si2168: add support for firmware files in new format
This patch adds support for new type of firmware versions of Si2168 chip.
Old type: n x 8 bytes (all data, first byte seems to be 04 or 05)
New type: n x 17 bytes (1 byte indicates len and max 16 bytes data)
New version of TechnoTrend CT2-4400 drivers
(http://www.tt-downloads.de/bda-treiber_4.3.0.0.zip) contains newer
firmware for Si2168-B40 that is in the new format. It can be extracted
with the following command:
dd if=ttTVStick4400_64.sys ibs=1 skip=323872 count=6919 of=dvb-demod-si2168-b40-01.fw
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb-frontends/si2168.c | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c index 6da38e859cbc..ce9ab442b4b6 100644 --- a/drivers/media/dvb-frontends/si2168.c +++ b/drivers/media/dvb-frontends/si2168.c @@ -462,20 +462,38 @@ static int si2168_init(struct dvb_frontend *fe) dev_info(&s->client->dev, "downloading firmware from file '%s'\n", fw_file); - for (remaining = fw->size; remaining > 0; remaining -= i2c_wr_max) { - len = remaining; - if (len > i2c_wr_max) - len = i2c_wr_max; - - memcpy(cmd.args, &fw->data[fw->size - remaining], len); - cmd.wlen = len; - cmd.rlen = 1; - ret = si2168_cmd_execute(s, &cmd); - if (ret) { - dev_err(&s->client->dev, - "firmware download failed=%d\n", - ret); - goto error_fw_release; + if ((fw->size % 17 == 0) && (fw->data[0] > 5)) { + /* firmware is in the new format */ + for (remaining = fw->size; remaining > 0; remaining -= 17) { + len = fw->data[fw->size - remaining]; + memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); + cmd.wlen = len; + cmd.rlen = 1; + ret = si2168_cmd_execute(s, &cmd); + if (ret) { + dev_err(&s->client->dev, + "firmware download failed=%d\n", + ret); + goto error_fw_release; + } + } + } else { + /* firmware is in the old format */ + for (remaining = fw->size; remaining > 0; remaining -= i2c_wr_max) { + len = remaining; + if (len > i2c_wr_max) + len = i2c_wr_max; + + memcpy(cmd.args, &fw->data[fw->size - remaining], len); + cmd.wlen = len; + cmd.rlen = 1; + ret = si2168_cmd_execute(s, &cmd); + if (ret) { + dev_err(&s->client->dev, + "firmware download failed=%d\n", + ret); + goto error_fw_release; + } } } |