diff options
Diffstat (limited to 'drivers/media/dvb/frontends/cx24116.c')
| -rw-r--r-- | drivers/media/dvb/frontends/cx24116.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/media/dvb/frontends/cx24116.c b/drivers/media/dvb/frontends/cx24116.c index 2410d8b59b6b..95c6465b87a1 100644 --- a/drivers/media/dvb/frontends/cx24116.c +++ b/drivers/media/dvb/frontends/cx24116.c @@ -137,7 +137,7 @@ MODULE_PARM_DESC(toneburst, "DiSEqC toneburst 0=OFF, 1=TONE CACHE, "\ /* SNR measurements */ static int esno_snr; module_param(esno_snr, int, 0644); -MODULE_PARM_DESC(debug, "SNR return units, 0=PERCENTAGE 0-100, "\ +MODULE_PARM_DESC(esno_snr, "SNR return units, 0=PERCENTAGE 0-100, "\ "1=ESNO(db * 10) (default:0)"); enum cmds { @@ -566,7 +566,7 @@ static int cx24116_load_firmware(struct dvb_frontend *fe, { struct cx24116_state *state = fe->demodulator_priv; struct cx24116_cmd cmd; - int i, ret; + int i, ret, len, max, remaining; unsigned char vers[4]; dprintk("%s\n", __func__); @@ -603,8 +603,21 @@ static int cx24116_load_firmware(struct dvb_frontend *fe, cx24116_writereg(state, 0xF5, 0x00); cx24116_writereg(state, 0xF6, 0x00); - /* write the entire firmware as one transaction */ - cx24116_writeregN(state, 0xF7, fw->data, fw->size); + /* Split firmware to the max I2C write len and write. + * Writes whole firmware as one write when i2c_wr_max is set to 0. */ + if (state->config->i2c_wr_max) + max = state->config->i2c_wr_max; + else + max = INT_MAX; /* enough for 32k firmware */ + + for (remaining = fw->size; remaining > 0; remaining -= max - 1) { + len = remaining; + if (len > max - 1) + len = max - 1; + + cx24116_writeregN(state, 0xF7, &fw->data[fw->size - remaining], + len); + } cx24116_writereg(state, 0xF4, 0x10); cx24116_writereg(state, 0xF0, 0x00); |