diff options
| -rw-r--r-- | drivers/media/dvb-frontends/mn88473.c | 64 |
1 files changed, 47 insertions, 17 deletions
diff --git a/drivers/media/dvb-frontends/mn88473.c b/drivers/media/dvb-frontends/mn88473.c index cda0bdb..2c81a83 100644 --- a/drivers/media/dvb-frontends/mn88473.c +++ b/drivers/media/dvb-frontends/mn88473.c @@ -117,8 +117,8 @@ static int mn88473_set_frontend(struct dvb_frontend *fe) struct mn88473_dev *dev = fe->demodulator_priv; struct dtv_frontend_properties *c = &fe->dtv_property_cache; int ret, i; - u32 if_frequency = 0; - u8 params[10], delivery_system; + u32 if_frequency; + u8 delivery_system_val, if_val[3], bw_val[7]; dev_dbg(&dev->i2c->dev, "%s: delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n", @@ -133,22 +133,43 @@ static int mn88473_set_frontend(struct dvb_frontend *fe) switch (c->delivery_system) { case SYS_DVBT: - delivery_system = 0x02; - if (c->bandwidth_hz <= 7000000) - memcpy(params, "\x2e\xcb\xfb\xc8\x00\x00\x17\x0a\x17\x0a", 10); - else if (c->bandwidth_hz <= 8000000) - memcpy(params, "\x2e\xcb\xfb\xaf\x00\x00\x11\xec\x11\xec", 10); + delivery_system_val = 0x02; break; case SYS_DVBT2: - delivery_system = 0x03; - if (c->bandwidth_hz <= 7000000) - memcpy(params, "\x2e\xcb\xfb\xc8\x00\x00\x17\x0a\x17\x0a", 10); - else if (c->bandwidth_hz <= 8000000) - memcpy(params, "\x2e\xcb\xfb\xaf\x00\x00\x11\xec\x11\xec", 10); + delivery_system_val = 0x03; break; case SYS_DVBC_ANNEX_A: - delivery_system = 0x04; - memcpy(params, "\x33\xea\xb3\xaf\x00\x00\x11\xec\x11\xec", 10); + delivery_system_val = 0x04; + break; + default: + ret = -EINVAL; + goto err; + } + + switch (c->delivery_system) { + case SYS_DVBT: + case SYS_DVBT2: + if (c->bandwidth_hz <= 6000000) { + /* IF 3570000 Hz, BW 6000000 Hz */ + memcpy(if_val, "\x24\x8e\x8a", 3); + memcpy(bw_val, "\xe9\x55\x55\x1c\x29\x1c\x29", 7); + } else if (c->bandwidth_hz <= 7000000) { + /* IF 4570000 Hz, BW 7000000 Hz */ + memcpy(if_val, "\x2e\xcb\xfb", 3); + memcpy(bw_val, "\xc8\x00\x00\x17\x0a\x17\x0a", 7); + } else if (c->bandwidth_hz <= 8000000) { + /* IF 4570000 Hz, BW 8000000 Hz */ + memcpy(if_val, "\x2e\xcb\xfb", 3); + memcpy(bw_val, "\xaf\x00\x00\x11\xec\x11\xec", 7); + } else { + ret = -EINVAL; + goto err; + } + break; + case SYS_DVBC_ANNEX_A: + /* IF 5070000 Hz, BW 8000000 Hz */ + memcpy(if_val, "\x33\xea\xb3", 3); + memcpy(bw_val, "\xaf\x00\x00\x11\xec\x11\xec", 7); break; default: ret = -EINVAL; @@ -169,9 +190,12 @@ static int mn88473_set_frontend(struct dvb_frontend *fe) dev_dbg(&dev->i2c->dev, "%s: get_if_frequency=%d\n", __func__, if_frequency); + } else { + if_frequency = 0; } switch (if_frequency) { + case 3570000: case 4570000: case 5070000: break; @@ -189,11 +213,17 @@ static int mn88473_set_frontend(struct dvb_frontend *fe) ret = mn88473_wregs(dev, 0x1c00, "\x18", 1); ret = mn88473_wregs(dev, 0x1c01, "\x01", 1); ret = mn88473_wregs(dev, 0x1c02, "\x21", 1); - ret = mn88473_wreg(dev, 0x1c03, delivery_system); + ret = mn88473_wreg(dev, 0x1c03, delivery_system_val); ret = mn88473_wregs(dev, 0x1c0b, "\x00", 1); - for (i = 0; i < 10; i++) { - ret = mn88473_wreg(dev, 0x1c10 + i, params[i]); + for (i = 0; i < sizeof(if_val); i++) { + ret = mn88473_wreg(dev, 0x1c10 + i, if_val[i]); + if (ret) + goto err; + } + + for (i = 0; i < sizeof(bw_val); i++) { + ret = mn88473_wreg(dev, 0x1c13 + i, bw_val[i]); if (ret) goto err; } |
