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path: root/drivers/media/dvb/frontends/stv0299.c
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Diffstat (limited to 'drivers/media/dvb/frontends/stv0299.c')
-rw-r--r--drivers/media/dvb/frontends/stv0299.c100
1 files changed, 19 insertions, 81 deletions
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c
index 889d9257215..29c48665e13 100644
--- a/drivers/media/dvb/frontends/stv0299.c
+++ b/drivers/media/dvb/frontends/stv0299.c
@@ -64,8 +64,12 @@ struct stv0299_state {
u32 tuner_frequency;
u32 symbol_rate;
fe_code_rate_t fec_inner;
+ int errmode;
};
+#define STATUS_BER 0
+#define STATUS_UCBLOCKS 1
+
static int debug;
static int debug_legacy_dish_switch;
#define dprintk(args...) \
@@ -383,36 +387,6 @@ static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag
};
}
-static inline s32 stv0299_calc_usec_delay (struct timeval lasttime, struct timeval curtime)
-{
- return ((curtime.tv_usec < lasttime.tv_usec) ?
- 1000000 - lasttime.tv_usec + curtime.tv_usec :
- curtime.tv_usec - lasttime.tv_usec);
-}
-
-static void stv0299_sleep_until (struct timeval *waketime, u32 add_usec)
-{
- struct timeval lasttime;
- s32 delta, newdelta;
-
- waketime->tv_usec += add_usec;
- if (waketime->tv_usec >= 1000000) {
- waketime->tv_usec -= 1000000;
- waketime->tv_sec++;
- }
-
- do_gettimeofday (&lasttime);
- delta = stv0299_calc_usec_delay (lasttime, *waketime);
- if (delta > 2500) {
- msleep ((delta - 1500) / 1000);
- do_gettimeofday (&lasttime);
- newdelta = stv0299_calc_usec_delay (lasttime, *waketime);
- delta = (newdelta > delta) ? 0 : newdelta;
- }
- if (delta > 0)
- udelay (delta);
-}
-
static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd)
{
struct stv0299_state* state = fe->demodulator_priv;
@@ -440,7 +414,7 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd)
memcpy (&tv[0], &nexttime, sizeof (struct timeval));
stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
- stv0299_sleep_until (&nexttime, 32000);
+ dvb_frontend_sleep_until(&nexttime, 32000);
for (i=0; i<9; i++) {
if (debug_legacy_dish_switch)
@@ -454,13 +428,13 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd)
cmd = cmd >> 1;
if (i != 8)
- stv0299_sleep_until (&nexttime, 8000);
+ dvb_frontend_sleep_until(&nexttime, 8000);
}
if (debug_legacy_dish_switch) {
printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
__FUNCTION__, fe->dvb->num);
- for (i=1; i < 10; i++)
- printk ("%d: %d\n", i, stv0299_calc_usec_delay (tv[i-1] , tv[i]));
+ for (i = 1; i < 10; i++)
+ printk ("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i]));
}
return 0;
@@ -517,8 +491,7 @@ static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
{
struct stv0299_state* state = fe->demodulator_priv;
- stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x10);
- msleep(100);
+ if (state->errmode != STATUS_BER) return 0;
*ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
return 0;
@@ -557,9 +530,8 @@ static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
struct stv0299_state* state = fe->demodulator_priv;
- stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x30);
- msleep(100);
- *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
+ if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0;
+ else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
return 0;
}
@@ -581,49 +553,14 @@ static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
if (state->config->invert) invval = (~invval) & 1;
stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval);
- if (state->config->enhanced_tuning) {
- /* check if we should do a finetune */
- int frequency_delta = p->frequency - state->tuner_frequency;
- int minmax = p->u.qpsk.symbol_rate / 2000;
- if (minmax < 5000) minmax = 5000;
-
- if ((frequency_delta > -minmax) && (frequency_delta < minmax) && (frequency_delta != 0) &&
- (state->fec_inner == p->u.qpsk.fec_inner) &&
- (state->symbol_rate == p->u.qpsk.symbol_rate)) {
- int Drot_freq = (frequency_delta << 16) / (state->config->mclk / 1000);
-
- // zap the derotator registers first
- stv0299_writeregI(state, 0x22, 0x00);
- stv0299_writeregI(state, 0x23, 0x00);
-
- // now set them as we want
- stv0299_writeregI(state, 0x22, Drot_freq >> 8);
- stv0299_writeregI(state, 0x23, Drot_freq);
- } else {
- /* A "normal" tune is requested */
- stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
- state->config->pll_set(fe, state->i2c, p);
- stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
-
- stv0299_writeregI(state, 0x32, 0x80);
- stv0299_writeregI(state, 0x22, 0x00);
- stv0299_writeregI(state, 0x23, 0x00);
- stv0299_writeregI(state, 0x32, 0x19);
- stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
- stv0299_set_FEC (state, p->u.qpsk.fec_inner);
- }
- } else {
- stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
- state->config->pll_set(fe, state->i2c, p);
- stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
+ stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
+ state->config->pll_set(fe, state->i2c, p);
+ stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
- stv0299_set_FEC (state, p->u.qpsk.fec_inner);
- stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
- stv0299_writeregI(state, 0x22, 0x00);
- stv0299_writeregI(state, 0x23, 0x00);
- stv0299_readreg (state, 0x23);
- stv0299_writeregI(state, 0x12, 0xb9);
- }
+ stv0299_set_FEC (state, p->u.qpsk.fec_inner);
+ stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
+ stv0299_writeregI(state, 0x22, 0x00);
+ stv0299_writeregI(state, 0x23, 0x00);
state->tuner_frequency = p->frequency;
state->fec_inner = p->u.qpsk.fec_inner;
@@ -708,6 +645,7 @@ struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
state->tuner_frequency = 0;
state->symbol_rate = 0;
state->fec_inner = 0;
+ state->errmode = STATUS_BER;
/* check if the demod is there */
stv0299_writeregI(state, 0x02, 0x34); /* standby off */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-16 16:47:11 +0000