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authorManu Abraham <abraham.manu@gmail.com>2008-01-25 20:56:21 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-12-29 17:53:22 -0200
commitb359325d1e4a67942626421ea1f203b41adc9712 (patch)
treeb8ef01f1c0e61d862721c94fe13cbc179b64faae /drivers
parent3d6a3bebda2093cf563266bbfa0f1f1b1ae8fd41 (diff)
V4L/DVB (9455): Cleanup: remove some superfluous stuff and dead commented out code
Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/dvb/frontends/stb0899_algo.c36
-rw-r--r--drivers/media/dvb/frontends/stb0899_priv.h1
2 files changed, 5 insertions, 32 deletions
diff --git a/drivers/media/dvb/frontends/stb0899_algo.c b/drivers/media/dvb/frontends/stb0899_algo.c
index 65bc032964b..b7752473f7a 100644
--- a/drivers/media/dvb/frontends/stb0899_algo.c
+++ b/drivers/media/dvb/frontends/stb0899_algo.c
@@ -73,20 +73,16 @@ u32 stb0899_get_srate(struct stb0899_state *state)
*/
static u32 stb0899_set_srate(struct stb0899_state *state, u32 master_clk, u32 srate)
{
- u32 tmp, tmp_up, srate_up;
- u8 sfr_up[3], sfr[3];
+ u32 tmp;
+ u8 sfr[3];
-// srate_up = srate;
dprintk(state->verbose, FE_DEBUG, 1, "-->");
/*
* in order to have the maximum precision, the symbol rate entered into
* the chip is computed as the closest value of the "true value".
* In this purpose, the symbol rate value is rounded (1 is added on the bit
* below the LSB )
- */
-// srate_up += (srate_up * 3) / 100;
-
- /*
+ *
* srate = (SFR * master_clk) >> 20
* <=>
* SFR = srate << 20 / master_clk
@@ -97,41 +93,20 @@ static u32 stb0899_set_srate(struct stb0899_state *state, u32 master_clk, u32 sr
* stored as 20 bit number with an offset of 4 bit:
* sfr = SFR << 4;
*/
-// tmp_up = stb0899_do_div((((u64)srate_up) << 21) + master_clk, 2 * master_clk);
-// tmp_up <<= 4;
tmp = stb0899_do_div((((u64)srate) << 21) + master_clk, 2 * master_clk);
tmp <<= 4;
-// sfr_up[0] = tmp_up >> 16;
-// sfr_up[1] = tmp_up >> 8;
-// sfr_up[2] = tmp_up;
-
sfr[0] = tmp >> 16;
sfr[1] = tmp >> 8;
sfr[2] = tmp;
-// stb0899_write_regs(state, STB0899_SFRUPH, sfr_up, 3);
stb0899_write_regs(state, STB0899_SFRH, sfr, 3);
return srate;
}
/*
- * stb0899_calc_loop_time
- * Compute the amount of time needed by the timing loop to lock
- * SymbolRate: Symbol rate
- * return: timing loop time constant (ms)
- */
-static long stb0899_calc_loop_time(long srate)
-{
- if (srate > 0)
- return (100000 / (srate / 1000));
- else
- return 0;
-}
-
-/*
* stb0899_calc_derot_time
* Compute the amount of time needed by the derotator to lock
* SymbolRate: Symbol rate
@@ -197,7 +172,7 @@ static enum stb0899_status stb0899_check_tmg(struct stb0899_state *state)
u8 reg;
s8 timing;
- msleep(internal->t_timing);
+ msleep(internal->t_derot);
stb0899_write_reg(state, STB0899_RTF, 0xf2);
reg = stb0899_read_reg(state, STB0899_TLIR);
@@ -574,7 +549,6 @@ enum stb0899_status stb0899_dvbs_algo(struct stb0899_state *state)
/* Initial calculations */
internal->derot_step = internal->derot_percent * (params->srate / 1000L) / internal->mclk; /* DerotStep/1000 * Fsymbol */
- internal->t_timing = stb0899_calc_loop_time(params->srate);
internal->t_derot = stb0899_calc_derot_time(params->srate);
internal->t_data = 500;
@@ -617,7 +591,7 @@ enum stb0899_status stb0899_dvbs_algo(struct stb0899_state *state)
if (state->config->tuner_get_frequency)
state->config->tuner_get_frequency(&state->frontend, &internal->freq);
- msleep(internal->t_agc1 + internal->t_agc2 + internal->t_timing); /* AGC1, AGC2 and timing loop */
+ msleep(internal->t_agc1 + internal->t_agc2 + internal->t_derot); /* AGC1, AGC2 and timing loop */
dprintk(state->verbose, FE_DEBUG, 1, "current derot freq=%d", internal->derot_freq);
internal->status = AGC1OK;
diff --git a/drivers/media/dvb/frontends/stb0899_priv.h b/drivers/media/dvb/frontends/stb0899_priv.h
index f9b8f51446a..8a7c4ee087d 100644
--- a/drivers/media/dvb/frontends/stb0899_priv.h
+++ b/drivers/media/dvb/frontends/stb0899_priv.h
@@ -182,7 +182,6 @@ struct stb0899_internal {
s16 direction; /* Current derotator search direction */
s16 derot_step; /* Derotator step (binary value) */
- s16 t_timing; /* Timing loop time constant (ms) */
s16 t_derot; /* Derotator time constant (ms) */
s16 t_data; /* Data recovery time constant (ms) */
s16 sub_dir; /* Direction of the next sub range */