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author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-21 10:28:27 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-21 10:28:27 -0300 |
commit | e48f91ecc0980d3b05a7642b96391a23d66d8f53 (patch) | |
tree | 474ee69a840b9d051fde37fb731a0422c2814490 /linux/drivers/media/dvb/frontends/tda10086.c | |
parent | 8f9cfbc530140f29bd459a164268b1b80e123321 (diff) | |
parent | 04ffa4a245250db7c6a07158f8873bcf019ecbec (diff) | |
download | mediapointer-dvb-s2-e48f91ecc0980d3b05a7642b96391a23d66d8f53.tar.gz mediapointer-dvb-s2-e48f91ecc0980d3b05a7642b96391a23d66d8f53.tar.bz2 |
merge: http://linuxtv.org/hg/~hhackmann/v4l-dvb/
From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'linux/drivers/media/dvb/frontends/tda10086.c')
-rw-r--r-- | linux/drivers/media/dvb/frontends/tda10086.c | 105 |
1 files changed, 55 insertions, 50 deletions
diff --git a/linux/drivers/media/dvb/frontends/tda10086.c b/linux/drivers/media/dvb/frontends/tda10086.c index 61ea88519..c749f96c2 100644 --- a/linux/drivers/media/dvb/frontends/tda10086.c +++ b/linux/drivers/media/dvb/frontends/tda10086.c @@ -91,16 +91,16 @@ static int tda10086_write_mask(struct tda10086_state *state, int reg, int mask, { int val; - // read a byte and check + /* read a byte and check */ val = tda10086_read_byte(state, reg); if (val < 0) return val; - // mask if off + /* mask if off */ val = val & ~mask; val |= data & 0xff; - // write it out again + /* write it out again */ return tda10086_write_byte(state, reg, val); } @@ -113,58 +113,63 @@ static int tda10086_init(struct dvb_frontend* fe) if (state->config->diseqc_tone) t22k_off = 0; - // reset + /* reset */ tda10086_write_byte(state, 0x00, 0x00); msleep(10); - // misc setup + /* misc setup */ tda10086_write_byte(state, 0x01, 0x94); - tda10086_write_byte(state, 0x02, 0x35); // NOTE: TT drivers appear to disable CSWP + tda10086_write_byte(state, 0x02, 0x35); /* NOTE: TT drivers appear to disable CSWP */ tda10086_write_byte(state, 0x03, 0xe4); tda10086_write_byte(state, 0x04, 0x43); tda10086_write_byte(state, 0x0c, 0x0c); - tda10086_write_byte(state, 0x1b, 0xb0); // noise threshold - tda10086_write_byte(state, 0x20, 0x89); // misc - tda10086_write_byte(state, 0x30, 0x04); // acquisition period length - tda10086_write_byte(state, 0x32, 0x00); // irq off - tda10086_write_byte(state, 0x31, 0x56); // setup AFC - - // setup PLL (assumes 16Mhz XIN) - tda10086_write_byte(state, 0x55, 0x2c); // misc PLL setup - tda10086_write_byte(state, 0x3a, 0x0b); // M=12 - tda10086_write_byte(state, 0x3b, 0x01); // P=2 - tda10086_write_mask(state, 0x55, 0x20, 0x00); // powerup PLL - - // setup TS interface + tda10086_write_byte(state, 0x1b, 0xb0); /* noise threshold */ + tda10086_write_byte(state, 0x20, 0x89); /* misc */ + tda10086_write_byte(state, 0x30, 0x04); /* acquisition period length */ + tda10086_write_byte(state, 0x32, 0x00); /* irq off */ + tda10086_write_byte(state, 0x31, 0x56); /* setup AFC */ + + /* setup PLL (this assumes SACLK = 96MHz) */ + tda10086_write_byte(state, 0x55, 0x2c); /* misc PLL setup */ + if (state->config->xtal_freq == TDA10086_XTAL_16M) { + tda10086_write_byte(state, 0x3a, 0x0b); /* M=12 */ + tda10086_write_byte(state, 0x3b, 0x01); /* P=2 */ + } else { + tda10086_write_byte(state, 0x3a, 0x17); /* M=24 */ + tda10086_write_byte(state, 0x3b, 0x00); /* P=1 */ + } + tda10086_write_mask(state, 0x55, 0x20, 0x00); /* powerup PLL */ + + /* setup TS interface */ tda10086_write_byte(state, 0x11, 0x81); tda10086_write_byte(state, 0x12, 0x81); - tda10086_write_byte(state, 0x19, 0x40); // parallel mode A + MSBFIRST - tda10086_write_byte(state, 0x56, 0x80); // powerdown WPLL - unused in the mode we use - tda10086_write_byte(state, 0x57, 0x08); // bypass WPLL - unused in the mode we use + tda10086_write_byte(state, 0x19, 0x40); /* parallel mode A + MSBFIRST */ + tda10086_write_byte(state, 0x56, 0x80); /* powerdown WPLL - unused in the mode we use */ + tda10086_write_byte(state, 0x57, 0x08); /* bypass WPLL - unused in the mode we use */ tda10086_write_byte(state, 0x10, 0x2a); - // setup ADC - tda10086_write_byte(state, 0x58, 0x61); // ADC setup - tda10086_write_mask(state, 0x58, 0x01, 0x00); // powerup ADC + /* setup ADC */ + tda10086_write_byte(state, 0x58, 0x61); /* ADC setup */ + tda10086_write_mask(state, 0x58, 0x01, 0x00); /* powerup ADC */ - // setup AGC + /* setup AGC */ tda10086_write_byte(state, 0x05, 0x0B); tda10086_write_byte(state, 0x37, 0x63); - tda10086_write_byte(state, 0x3f, 0x0a); // NOTE: flydvb varies it + tda10086_write_byte(state, 0x3f, 0x0a); /* NOTE: flydvb varies it */ tda10086_write_byte(state, 0x40, 0x64); tda10086_write_byte(state, 0x41, 0x4f); tda10086_write_byte(state, 0x42, 0x43); - // setup viterbi - tda10086_write_byte(state, 0x1a, 0x11); // VBER 10^6, DVB, QPSK + /* setup viterbi */ + tda10086_write_byte(state, 0x1a, 0x11); /* VBER 10^6, DVB, QPSK */ - // setup carrier recovery + /* setup carrier recovery */ tda10086_write_byte(state, 0x3d, 0x80); - // setup SEC - tda10086_write_byte(state, 0x36, t22k_off); // all SEC off, 22k tone - tda10086_write_byte(state, 0x34, (((1<<19) * (22000/1000)) / (SACLK/1000))); // } tone frequency - tda10086_write_byte(state, 0x35, (((1<<19) * (22000/1000)) / (SACLK/1000)) >> 8); // } + /* setup SEC */ + tda10086_write_byte(state, 0x36, t22k_off); /* all SEC off, 22k tone */ + tda10086_write_byte(state, 0x34, (((1<<19) * (22000/1000)) / (SACLK/1000))); + tda10086_write_byte(state, 0x35, (((1<<19) * (22000/1000)) / (SACLK/1000)) >> 8); return 0; } @@ -303,7 +308,7 @@ static int tda10086_set_symbol_rate(struct tda10086_state *state, dprintk ("%s %i\n", __func__, symbol_rate); - // setup the decimation and anti-aliasing filters.. + /* setup the decimation and anti-aliasing filters.. */ if (symbol_rate < (u32) (SACLK * 0.0137)) { dfn=4; afs=1; @@ -340,13 +345,13 @@ static int tda10086_set_symbol_rate(struct tda10086_state *state, byp=1; } - // calculate BDR + /* calculate BDR */ big = (1ULL<<21) * ((u64) symbol_rate/1000ULL) * (1ULL<<dfn); big += ((SACLK/1000ULL)-1ULL); do_div(big, (SACLK/1000ULL)); bdr = big & 0xfffff; - // calculate BDRI + /* calculate BDRI */ tmp = (1<<dfn)*(symbol_rate/1000); bdri = ((32 * (SACLK/1000)) + (tmp-1)) / tmp; @@ -415,11 +420,11 @@ static int tda10086_set_frontend(struct dvb_frontend* fe, dprintk ("%s\n", __func__); - // modify parameters for tuning + /* modify parameters for tuning */ tda10086_write_byte(state, 0x02, 0x35); state->has_lock = false; - // set params + /* set params */ if (fe->ops.tuner_ops.set_params) { fe->ops.tuner_ops.set_params(fe, fe_params); if (fe->ops.i2c_gate_ctrl) @@ -431,7 +436,7 @@ static int tda10086_set_frontend(struct dvb_frontend* fe, fe->ops.i2c_gate_ctrl(fe, 0); } - // calcluate the frequency offset (in *Hz* not kHz) + /* calcluate the frequency offset (in *Hz* not kHz) */ freqoff = fe_params->frequency - freq; freqoff = ((1<<16) * freqoff) / (SACLK/1000); tda10086_write_byte(state, 0x3d, 0x80 | ((freqoff >> 8) & 0x7f)); @@ -444,7 +449,7 @@ static int tda10086_set_frontend(struct dvb_frontend* fe, if ((ret = tda10086_set_fec(state, fe_params)) < 0) return ret; - // soft reset + disable TS output until lock + /* soft reset + disable TS output until lock */ tda10086_write_mask(state, 0x10, 0x40, 0x40); tda10086_write_mask(state, 0x00, 0x01, 0x00); @@ -462,11 +467,11 @@ static int tda10086_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_pa dprintk ("%s\n", __func__); - // check for invalid symbol rate + /* check for invalid symbol rate */ if (fe_params->u.qpsk.symbol_rate < 500000) return -EINVAL; - // calculate the updated frequency (note: we convert from Hz->kHz) + /* calculate the updated frequency (note: we convert from Hz->kHz) */ tmp64 = tda10086_read_byte(state, 0x52); tmp64 |= (tda10086_read_byte(state, 0x51) << 8); if (tmp64 & 0x8000) @@ -475,7 +480,7 @@ static int tda10086_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_pa do_div(tmp64, (1ULL<<15) * (1ULL<<1)); fe_params->frequency = (int) state->frequency + (int) tmp64; - // the inversion + /* the inversion */ val = tda10086_read_byte(state, 0x0c); if (val & 0x80) { switch(val & 0x40) { @@ -506,7 +511,7 @@ static int tda10086_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_pa } } - // calculate the updated symbol rate + /* calculate the updated symbol rate */ tmp = tda10086_read_byte(state, 0x1d); if (tmp & 0x80) tmp |= 0xffffff00; @@ -514,7 +519,7 @@ static int tda10086_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_pa tmp = ((state->symbol_rate/1000) * tmp) / (1000000/1000); fe_params->u.qpsk.symbol_rate = state->symbol_rate + tmp; - // the FEC + /* the FEC */ val = (tda10086_read_byte(state, 0x0d) & 0x70) >> 4; switch(val) { case 0x00: @@ -567,7 +572,7 @@ static int tda10086_read_status(struct dvb_frontend* fe, fe_status_t *fe_status) *fe_status |= FE_HAS_LOCK; if (!state->has_lock) { state->has_lock = true; - // modify parameters for stable reception + /* modify parameters for stable reception */ tda10086_write_byte(state, 0x02, 0x00); } } @@ -607,10 +612,10 @@ static int tda10086_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) dprintk ("%s\n", __func__); - // read it + /* read it */ *ucblocks = tda10086_read_byte(state, 0x18) & 0x7f; - // reset counter + /* reset counter */ tda10086_write_byte(state, 0x18, 0x00); tda10086_write_byte(state, 0x18, 0x80); @@ -623,7 +628,7 @@ static int tda10086_read_ber(struct dvb_frontend* fe, u32* ber) dprintk ("%s\n", __func__); - // read it + /* read it */ *ber = 0; *ber |= tda10086_read_byte(state, 0x15); *ber |= tda10086_read_byte(state, 0x16) << 8; |