aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/frontends/cx24123.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/media/dvb/frontends/cx24123.c195
1 files changed, 51 insertions, 144 deletions
diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c
index 691dc840dcc0..274a87b7a5d5 100644
--- a/drivers/media/dvb/frontends/cx24123.c
+++ b/drivers/media/dvb/frontends/cx24123.c
@@ -41,14 +41,12 @@ static int debug;
struct cx24123_state
{
struct i2c_adapter* i2c;
- struct dvb_frontend_ops ops;
const struct cx24123_config* config;
struct dvb_frontend frontend;
u32 lastber;
u16 snr;
- u8 lnbreg;
/* Some PLL specifics for tuning */
u32 VCAarg;
@@ -249,29 +247,6 @@ static int cx24123_writereg(struct cx24123_state* state, int reg, int data)
return 0;
}
-static int cx24123_writelnbreg(struct cx24123_state* state, int reg, int data)
-{
- u8 buf[] = { reg, data };
- /* fixme: put the intersil addr int the config */
- struct i2c_msg msg = { .addr = 0x08, .flags = 0, .buf = buf, .len = 2 };
- int err;
-
- if (debug>1)
- printk("cx24123: %s: writeln addr=0x08, reg 0x%02x, value 0x%02x\n",
- __FUNCTION__,reg, data);
-
- if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
- printk("%s: writelnbreg error (err == %i, reg == 0x%02x,"
- " data == 0x%02x)\n", __FUNCTION__, err, reg, data);
- return -EREMOTEIO;
- }
-
- /* cache the write, no way to read back */
- state->lnbreg = data;
-
- return 0;
-}
-
static int cx24123_readreg(struct cx24123_state* state, u8 reg)
{
int ret;
@@ -295,11 +270,6 @@ static int cx24123_readreg(struct cx24123_state* state, u8 reg)
return b1[0];
}
-static int cx24123_readlnbreg(struct cx24123_state* state, u8 reg)
-{
- return state->lnbreg;
-}
-
static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion)
{
u8 nom_reg = cx24123_readreg(state, 0x0e);
@@ -458,8 +428,8 @@ static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate)
u8 pll_mult;
/* check if symbol rate is within limits */
- if ((srate > state->ops.info.symbol_rate_max) ||
- (srate < state->ops.info.symbol_rate_min))
+ if ((srate > state->frontend.ops.info.symbol_rate_max) ||
+ (srate < state->frontend.ops.info.symbol_rate_min))
return -EOPNOTSUPP;;
/* choose the sampling rate high enough for the required operation,
@@ -687,13 +657,6 @@ static int cx24123_initfe(struct dvb_frontend* fe)
for (i = 0; i < sizeof(cx24123_regdata) / sizeof(cx24123_regdata[0]); i++)
cx24123_writereg(state, cx24123_regdata[i].reg, cx24123_regdata[i].data);
- if (state->config->pll_init)
- state->config->pll_init(fe);
-
- /* Configure the LNB for 14V */
- if (state->config->use_isl6421)
- cx24123_writelnbreg(state, 0x0, 0x2a);
-
return 0;
}
@@ -702,50 +665,18 @@ static int cx24123_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage
struct cx24123_state *state = fe->demodulator_priv;
u8 val;
- switch (state->config->use_isl6421) {
-
- case 1:
+ val = cx24123_readreg(state, 0x29) & ~0x40;
- val = cx24123_readlnbreg(state, 0x0);
-
- switch (voltage) {
- case SEC_VOLTAGE_13:
- dprintk("%s: isl6421 voltage = 13V\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val & 0x32); /* V 13v */
- case SEC_VOLTAGE_18:
- dprintk("%s: isl6421 voltage = 18V\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val | 0x04); /* H 18v */
- case SEC_VOLTAGE_OFF:
- dprintk("%s: isl5421 voltage off\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val & 0x30);
- default:
- return -EINVAL;
- };
-
- case 0:
-
- val = cx24123_readreg(state, 0x29);
-
- switch (voltage) {
- case SEC_VOLTAGE_13:
- dprintk("%s: setting voltage 13V\n", __FUNCTION__);
- if (state->config->enable_lnb_voltage)
- state->config->enable_lnb_voltage(fe, 1);
- return cx24123_writereg(state, 0x29, val | 0x80);
- case SEC_VOLTAGE_18:
- dprintk("%s: setting voltage 18V\n", __FUNCTION__);
- if (state->config->enable_lnb_voltage)
- state->config->enable_lnb_voltage(fe, 1);
- return cx24123_writereg(state, 0x29, val & 0x7f);
- case SEC_VOLTAGE_OFF:
- dprintk("%s: setting voltage off\n", __FUNCTION__);
- if (state->config->enable_lnb_voltage)
- state->config->enable_lnb_voltage(fe, 0);
- return 0;
- default:
- return -EINVAL;
- };
- }
+ switch (voltage) {
+ case SEC_VOLTAGE_13:
+ dprintk("%s: setting voltage 13V\n", __FUNCTION__);
+ return cx24123_writereg(state, 0x29, val & 0x7f);
+ case SEC_VOLTAGE_18:
+ dprintk("%s: setting voltage 18V\n", __FUNCTION__);
+ return cx24123_writereg(state, 0x29, val | 0x80);
+ default:
+ return -EINVAL;
+ };
return 0;
}
@@ -766,27 +697,20 @@ static void cx24123_wait_for_diseqc(struct cx24123_state *state)
static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd)
{
struct cx24123_state *state = fe->demodulator_priv;
- int i, val;
+ int i, val, tone;
dprintk("%s:\n",__FUNCTION__);
- /* check if continuous tone has been stopped */
- if (state->config->use_isl6421)
- val = cx24123_readlnbreg(state, 0x00) & 0x10;
- else
- val = cx24123_readreg(state, 0x29) & 0x10;
-
-
- if (val) {
- printk("%s: ERROR: attempt to send diseqc command before tone is off\n", __FUNCTION__);
- return -ENOTSUPP;
- }
+ /* stop continuous tone if enabled */
+ tone = cx24123_readreg(state, 0x29);
+ if (tone & 0x10)
+ cx24123_writereg(state, 0x29, tone & ~0x50);
/* wait for diseqc queue ready */
cx24123_wait_for_diseqc(state);
/* select tone mode */
- cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xf8);
+ cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
for (i = 0; i < cmd->msg_len; i++)
cx24123_writereg(state, 0x2C + i, cmd->msg[i]);
@@ -797,36 +721,33 @@ static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_ma
/* wait for diseqc message to finish sending */
cx24123_wait_for_diseqc(state);
+ /* restart continuous tone if enabled */
+ if (tone & 0x10) {
+ cx24123_writereg(state, 0x29, tone & ~0x40);
+ }
+
return 0;
}
static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
{
struct cx24123_state *state = fe->demodulator_priv;
- int val;
+ int val, tone;
dprintk("%s:\n", __FUNCTION__);
- /* check if continuous tone has been stoped */
- if (state->config->use_isl6421)
- val = cx24123_readlnbreg(state, 0x00) & 0x10;
- else
- val = cx24123_readreg(state, 0x29) & 0x10;
-
-
- if (val) {
- printk("%s: ERROR: attempt to send diseqc command before tone is off\n", __FUNCTION__);
- return -ENOTSUPP;
- }
+ /* stop continuous tone if enabled */
+ tone = cx24123_readreg(state, 0x29);
+ if (tone & 0x10)
+ cx24123_writereg(state, 0x29, tone & ~0x50);
+ /* wait for diseqc queue ready */
cx24123_wait_for_diseqc(state);
/* select tone mode */
- val = cx24123_readreg(state, 0x2a) & 0xf8;
- cx24123_writereg(state, 0x2a, val | 0x04);
-
+ cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) | 0x4);
+ msleep(30);
val = cx24123_readreg(state, 0x29);
-
if (burst == SEC_MINI_A)
cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40 | 0x00));
else if (burst == SEC_MINI_B)
@@ -835,7 +756,12 @@ static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t
return -EINVAL;
cx24123_wait_for_diseqc(state);
+ cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
+ /* restart continuous tone if enabled */
+ if (tone & 0x10) {
+ cx24123_writereg(state, 0x29, tone & ~0x40);
+ }
return 0;
}
@@ -976,38 +902,21 @@ static int cx24123_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
struct cx24123_state *state = fe->demodulator_priv;
u8 val;
- switch (state->config->use_isl6421) {
- case 1:
-
- val = cx24123_readlnbreg(state, 0x0);
-
- switch (tone) {
- case SEC_TONE_ON:
- dprintk("%s: isl6421 sec tone on\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val | 0x10);
- case SEC_TONE_OFF:
- dprintk("%s: isl6421 sec tone off\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val & 0x2f);
- default:
- printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
- return -EINVAL;
- }
-
- case 0:
+ /* wait for diseqc queue ready */
+ cx24123_wait_for_diseqc(state);
- val = cx24123_readreg(state, 0x29);
+ val = cx24123_readreg(state, 0x29) & ~0x40;
- switch (tone) {
- case SEC_TONE_ON:
- dprintk("%s: setting tone on\n", __FUNCTION__);
- return cx24123_writereg(state, 0x29, val | 0x10);
- case SEC_TONE_OFF:
- dprintk("%s: setting tone off\n",__FUNCTION__);
- return cx24123_writereg(state, 0x29, val & 0xef);
- default:
- printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
- return -EINVAL;
- }
+ switch (tone) {
+ case SEC_TONE_ON:
+ dprintk("%s: setting tone on\n", __FUNCTION__);
+ return cx24123_writereg(state, 0x29, val | 0x10);
+ case SEC_TONE_OFF:
+ dprintk("%s: setting tone off\n",__FUNCTION__);
+ return cx24123_writereg(state, 0x29, val & 0xef);
+ default:
+ printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
+ return -EINVAL;
}
return 0;
@@ -1040,10 +949,8 @@ struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
/* setup the state */
state->config = config;
state->i2c = i2c;
- memcpy(&state->ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
state->lastber = 0;
state->snr = 0;
- state->lnbreg = 0;
state->VCAarg = 0;
state->VGAarg = 0;
state->bandselectarg = 0;
@@ -1059,7 +966,7 @@ struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
}
/* create dvb_frontend */
- state->frontend.ops = &state->ops;
+ memcpy(&state->frontend.ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
return &state->frontend;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.