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[media] mb86a20s: Implement set_frontend cache logic 

Up to now, the driver was simply assuming TV mode, 13 segs.
Implement the logic to control the ISDB operational mode.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2013-03-04 07:10:06 -03:00
parent 385cd33c8d
commit 04fa725e7b
1 changed files with 63 additions and 11 deletions
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74
drivers/media/dvb-frontends/mb86a20s.c
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@ -24,6 +24,18 @@ static int debug = 1;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
enum mb86a20s_bandwidth {
MB86A20S_13SEG = 0,
MB86A20S_13SEG_PARTIAL = 1,
MB86A20S_1SEG = 2,
MB86A20S_3SEG = 3,
};
u8 mb86a20s_subchannel[] = {
0xb0, 0xc0, 0xd0, 0xe0,
0xf0, 0x00, 0x10, 0x20,
};
struct mb86a20s_state {
struct i2c_adapter *i2c;
const struct mb86a20s_config *config;
@ -32,6 +44,9 @@ struct mb86a20s_state {
struct dvb_frontend frontend;
u32 if_freq;
enum mb86a20s_bandwidth bw;
bool inversion;
u32 subchannel;
u32 estimated_rate[3];
unsigned long get_strength_time;
@ -54,10 +69,7 @@ static struct regdata mb86a20s_init1[] = {
{ 0x70, 0x0f },
{ 0x70, 0xff },
{ 0x08, 0x01 },
{ 0x09, 0x3e },
{ 0x50, 0xd1 }, { 0x51, 0x20 },
{ 0x39, 0x01 },
{ 0x71, 0x00 },
{ 0x28, 0x2a }, { 0x29, 0x00 }, { 0x2a, 0xff }, { 0x2b, 0x80 },
};
@ -1765,7 +1777,7 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
struct mb86a20s_state *state = fe->demodulator_priv;
u64 pll;
int rc;
u8 regD5 = 1;
u8 regD5 = 1, reg71, reg09 = 0x3a;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
@ -1777,6 +1789,27 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
if (rc < 0)
goto err;
if (!state->inversion)
reg09 |= 0x04;
rc = mb86a20s_writereg(state, 0x09, reg09);
if (rc < 0)
goto err;
if (!state->bw)
reg71 = 1;
else
reg71 = 0;
rc = mb86a20s_writereg(state, 0x39, reg71);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x71, state->bw);
if (rc < 0)
goto err;
if (state->subchannel) {
rc = mb86a20s_writereg(state, 0x44, state->subchannel);
if (rc < 0)
goto err;
}
/* Adjust IF frequency to match tuner */
if (fe->ops.tuner_ops.get_if_frequency)
fe->ops.tuner_ops.get_if_frequency(fe, &state->if_freq);
@ -1836,15 +1869,34 @@ err:
static int mb86a20s_set_frontend(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
int rc, if_freq;
#if 0
/*
* FIXME: Properly implement the set frontend properties
*/
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
#endif
int rc, if_freq;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
if (!c->isdbt_layer_enabled)
c->isdbt_layer_enabled = 7;
if (c->isdbt_layer_enabled == 1)
state->bw = MB86A20S_1SEG;
else if (c->isdbt_partial_reception)
state->bw = MB86A20S_13SEG_PARTIAL;
else
state->bw = MB86A20S_13SEG;
if (c->inversion == INVERSION_ON)
state->inversion = true;
else
state->inversion = false;
if (!c->isdbt_sb_mode) {
state->subchannel = 0;
} else {
if (c->isdbt_sb_subchannel > ARRAY_SIZE(mb86a20s_subchannel))
c->isdbt_sb_subchannel = 0;
state->subchannel = mb86a20s_subchannel[c->isdbt_sb_subchannel];
}
/*
* Gate should already be opened, but it doesn't hurt to
* double-check
@ -2058,7 +2110,7 @@ static struct dvb_frontend_ops mb86a20s_ops = {
/* Use dib8000 values per default */
.info = {
.name = "Fujitsu mb86A20s",
.caps = FE_CAN_INVERSION_AUTO | FE_CAN_RECOVER |
.caps = FE_CAN_RECOVER |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |