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path: root/drivers/media/dvb/frontends/s5h1409.c
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Diffstat (limited to 'drivers/media/dvb/frontends/s5h1409.c')
-rw-r--r--drivers/media/dvb/frontends/s5h1409.c97
1 files changed, 76 insertions, 21 deletions
diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c
index 562d9208857..819433485d3 100644
--- a/drivers/media/dvb/frontends/s5h1409.c
+++ b/drivers/media/dvb/frontends/s5h1409.c
@@ -42,6 +42,7 @@ struct s5h1409_state {
fe_modulation_t current_modulation;
u32 current_frequency;
+ int if_freq;
u32 is_qam_locked;
u32 qam_state;
@@ -97,7 +98,7 @@ static struct init_tab {
{ 0xac, 0x1003, },
{ 0xad, 0x103f, },
{ 0xe2, 0x0100, },
- { 0xe3, 0x0000, },
+ { 0xe3, 0x1000, },
{ 0x28, 0x1010, },
{ 0xb1, 0x000e, },
};
@@ -348,28 +349,32 @@ static int s5h1409_softreset(struct dvb_frontend* fe)
return 0;
}
+#define S5H1409_VSB_IF_FREQ 5380
+#define S5H1409_QAM_IF_FREQ state->config->qam_if
+
static int s5h1409_set_if_freq(struct dvb_frontend* fe, int KHz)
{
struct s5h1409_state* state = fe->demodulator_priv;
- int ret = 0;
dprintk("%s(%d KHz)\n", __FUNCTION__, KHz);
- if( (KHz == 44000) || (KHz == 5380) ) {
- s5h1409_writereg(state, 0x87, 0x01be);
- s5h1409_writereg(state, 0x88, 0x0436);
- s5h1409_writereg(state, 0x89, 0x054d);
- } else
- if (KHz == 4000) {
+ switch (KHz) {
+ case 4000:
s5h1409_writereg(state, 0x87, 0x014b);
s5h1409_writereg(state, 0x88, 0x0cb5);
s5h1409_writereg(state, 0x89, 0x03e2);
- } else {
- printk("%s() Invalid arg = %d KHz\n", __FUNCTION__, KHz);
- ret = -1;
+ break;
+ case 5380:
+ case 44000:
+ default:
+ s5h1409_writereg(state, 0x87, 0x01be);
+ s5h1409_writereg(state, 0x88, 0x0436);
+ s5h1409_writereg(state, 0x89, 0x054d);
+ break;
}
+ state->if_freq = KHz;
- return ret;
+ return 0;
}
static int s5h1409_set_spectralinversion(struct dvb_frontend* fe, int inverted)
@@ -394,11 +399,15 @@ static int s5h1409_enable_modulation(struct dvb_frontend* fe,
switch(m) {
case VSB_8:
dprintk("%s() VSB_8\n", __FUNCTION__);
+ if (state->if_freq != S5H1409_VSB_IF_FREQ)
+ s5h1409_set_if_freq(fe, S5H1409_VSB_IF_FREQ);
s5h1409_writereg(state, 0xf4, 0);
break;
case QAM_64:
case QAM_256:
dprintk("%s() QAM_AUTO (64/256)\n", __FUNCTION__);
+ if (state->if_freq != S5H1409_QAM_IF_FREQ)
+ s5h1409_set_if_freq(fe, S5H1409_QAM_IF_FREQ);
s5h1409_writereg(state, 0xf4, 1);
s5h1409_writereg(state, 0x85, 0x110);
break;
@@ -432,9 +441,11 @@ static int s5h1409_set_gpio(struct dvb_frontend* fe, int enable)
dprintk("%s(%d)\n", __FUNCTION__, enable);
if (enable)
- return s5h1409_writereg(state, 0xe3, 0x1100);
+ return s5h1409_writereg(state, 0xe3,
+ s5h1409_readreg(state, 0xe3) | 0x1100);
else
- return s5h1409_writereg(state, 0xe3, 0x1000);
+ return s5h1409_writereg(state, 0xe3,
+ s5h1409_readreg(state, 0xe3) & 0xeeff);
}
static int s5h1409_sleep(struct dvb_frontend* fe, int enable)
@@ -504,13 +515,15 @@ static void s5h1409_set_qam_interleave_mode(struct dvb_frontend *fe)
s5h1409_writereg(state, 0x96, 0x20);
s5h1409_writereg(state, 0xad,
( ((reg1 & 0xf000) >> 4) | (reg2 & 0xf0ff)) );
- s5h1409_writereg(state, 0xab, 0x1100);
+ s5h1409_writereg(state, 0xab,
+ s5h1409_readreg(state, 0xab) & 0xeffe);
}
} else {
if (state->qam_state != 1) {
state->qam_state = 1;
s5h1409_writereg(state, 0x96, 0x08);
- s5h1409_writereg(state, 0xab, 0x1101);
+ s5h1409_writereg(state, 0xab,
+ s5h1409_readreg(state, 0xab) | 0x1001);
}
}
}
@@ -547,6 +560,36 @@ static int s5h1409_set_frontend (struct dvb_frontend* fe,
return 0;
}
+static int s5h1409_set_mpeg_timing(struct dvb_frontend *fe, int mode)
+{
+ struct s5h1409_state *state = fe->demodulator_priv;
+ u16 val;
+
+ dprintk("%s(%d)\n", __FUNCTION__, mode);
+
+ val = s5h1409_readreg(state, 0xac) & 0xcfff;
+ switch (mode) {
+ case S5H1409_MPEGTIMING_CONTINOUS_INVERTING_CLOCK:
+ val |= 0x0000;
+ break;
+ case S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK:
+ dprintk("%s(%d) Mode1 or Defaulting\n", __FUNCTION__, mode);
+ val |= 0x1000;
+ break;
+ case S5H1409_MPEGTIMING_NONCONTINOUS_INVERTING_CLOCK:
+ val |= 0x2000;
+ break;
+ case S5H1409_MPEGTIMING_NONCONTINOUS_NONINVERTING_CLOCK:
+ val |= 0x3000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Configure MPEG Signal Timing charactistics */
+ return s5h1409_writereg(state, 0xac, val);
+}
+
/* Reset the demod hardware and reset all of the configuration registers
to a default state. */
static int s5h1409_init (struct dvb_frontend* fe)
@@ -566,13 +609,16 @@ static int s5h1409_init (struct dvb_frontend* fe)
state->current_modulation = VSB_8;
if (state->config->output_mode == S5H1409_SERIAL_OUTPUT)
- s5h1409_writereg(state, 0xab, 0x100); /* Serial */
+ s5h1409_writereg(state, 0xab,
+ s5h1409_readreg(state, 0xab) | 0x100); /* Serial */
else
- s5h1409_writereg(state, 0xab, 0x0); /* Parallel */
+ s5h1409_writereg(state, 0xab,
+ s5h1409_readreg(state, 0xab) & 0xfeff); /* Parallel */
s5h1409_set_spectralinversion(fe, state->config->inversion);
- s5h1409_set_if_freq(fe, state->config->if_freq);
+ s5h1409_set_if_freq(fe, state->if_freq);
s5h1409_set_gpio(fe, state->config->gpio);
+ s5h1409_set_mpeg_timing(fe, state->config->mpeg_timing);
s5h1409_softreset(fe);
/* Note: Leaving the I2C gate closed. */
@@ -741,6 +787,7 @@ struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config,
struct i2c_adapter* i2c)
{
struct s5h1409_state* state = NULL;
+ u16 reg;
/* allocate memory for the internal state */
state = kmalloc(sizeof(struct s5h1409_state), GFP_KERNEL);
@@ -751,9 +798,11 @@ struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config,
state->config = config;
state->i2c = i2c;
state->current_modulation = 0;
+ state->if_freq = S5H1409_VSB_IF_FREQ;
/* check if the demod exists */
- if (s5h1409_readreg(state, 0x04) != 0x0066)
+ reg = s5h1409_readreg(state, 0x04);
+ if ((reg != 0x0066) && (reg != 0x007f))
goto error;
/* create dvb_frontend */
@@ -761,8 +810,14 @@ struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config,
sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
+ if (s5h1409_init(&state->frontend) != 0) {
+ printk(KERN_ERR "%s: Failed to initialize correctly\n",
+ __FUNCTION__);
+ goto error;
+ }
+
/* Note: Leaving the I2C gate open here. */
- s5h1409_writereg(state, 0xf3, 1);
+ s5h1409_i2c_gate_ctrl(&state->frontend, 1);
return &state->frontend;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-13 01:27:24 +0000