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V4L/DVB (6671): Avoids checking digital/analog at check_firmware 

Since check_firmware is called via analog or digital set freq routines, move
type selection to those routines. This avoids having several if's at the code,
and simplifies the source code.

A sideback effect is that implementing radio and other dvb types will become
simpler.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2007-11-24 10:13:42 -03:00
parent f36224d399
commit 00deff1a07
1 changed files with 50 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

106
drivers/media/video/tuner-xc2028.c
View File

@ -608,15 +608,14 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type,
return 0;
}
static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode,
v4l2_std_id std, fe_bandwidth_t bandwidth)
static int check_firmware(struct dvb_frontend *fe, unsigned int type,
v4l2_std_id std)
{
struct xc2028_data *priv = fe->tuner_priv;
int rc = 0, is_retry = 0;
unsigned int type = 0;
struct xc2028_data *priv = fe->tuner_priv;
struct firmware_properties new_fw;
u16 version, hwmodel;
v4l2_std_id std0;
int rc = 0, is_retry = 0;
u16 version, hwmodel;
v4l2_std_id std0;
tuner_dbg("%s called\n", __FUNCTION__);
@ -633,32 +632,6 @@ static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode,
if (priv->ctrl.mts)
type |= MTS;
if (bandwidth == BANDWIDTH_7_MHZ || bandwidth == BANDWIDTH_8_MHZ)
type |= F8MHZ;
/* FIXME: How to load FM and FM|INPUT1 firmwares? */
if (new_mode == T_DIGITAL_TV) {
if (priv->ctrl.d2633)
type |= D2633;
else
type |= D2620;
switch (bandwidth) {
case BANDWIDTH_8_MHZ:
type |= DTV8;
break;
case BANDWIDTH_7_MHZ:
type |= DTV7;
break;
case BANDWIDTH_6_MHZ:
/* FIXME: Should allow select also ATSC */
type |= DTV6 | QAM;
break;
default:
tuner_err("error: bandwidth not supported.\n");
};
}
retry:
new_fw.type = type;
@ -729,10 +702,6 @@ skip_base:
/* Reloading std-specific firmware forces a SCODE update */
priv->cur_fw.scode_table = 0;
/* Add audio hack to std mask */
if (new_mode == T_ANALOG_TV)
new_fw.id |= parse_audio_std_option();
rc = load_firmware(fe, new_fw.type, &new_fw.id);
if (rc == -ENOENT)
rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
@ -840,9 +809,10 @@ ret:
#define DIV 15625
static int generic_set_tv_freq(struct dvb_frontend *fe, u32 freq /* in Hz */ ,
static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
enum tuner_mode new_mode,
v4l2_std_id std, fe_bandwidth_t bandwidth)
unsigned int type,
v4l2_std_id std)
{
struct xc2028_data *priv = fe->tuner_priv;
int rc = -EINVAL;
@ -855,7 +825,7 @@ static int generic_set_tv_freq(struct dvb_frontend *fe, u32 freq /* in Hz */ ,
tuner_dbg("should set frequency %d kHz\n", freq / 1000);
if (check_firmware(fe, new_mode, std, bandwidth) < 0)
if (check_firmware(fe, type, std) < 0)
goto ret;
/* On some cases xc2028 can disable video output, if
@ -865,10 +835,9 @@ static int generic_set_tv_freq(struct dvb_frontend *fe, u32 freq /* in Hz */ ,
* that xc2028 will be in a safe state.
* Maybe this might also be needed for DTV.
*/
if (new_mode != T_DIGITAL_TV)
if (new_mode == T_ANALOG_TV) {
rc = send_seq(priv, {0x00, 0x00});
if (new_mode == T_DIGITAL_TV) {
} else {
offset = 2750000;
if (priv->cur_fw.type & DTV7)
offset -= 500000;
@ -914,32 +883,35 @@ ret:
return rc;
}
static int xc2028_set_tv_freq(struct dvb_frontend *fe,
static int xc2028_set_analog_freq(struct dvb_frontend *fe,
struct analog_parameters *p)
{
struct xc2028_data *priv = fe->tuner_priv;
fe_bandwidth_t bw;
unsigned int type=0;
tuner_dbg("%s called\n", __FUNCTION__);
/* if std is not defined, choose one */
if (!p->std)
p->std = V4L2_STD_MN;
/* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
if (p->std & V4L2_STD_MN)
bw = BANDWIDTH_6_MHZ;
else
bw = BANDWIDTH_8_MHZ;
if (!(p->std & V4L2_STD_MN))
type |= F8MHZ;
tuner_dbg("%s called\n", __FUNCTION__);
/* Add audio hack to std mask */
p->std |= parse_audio_std_option();
return generic_set_tv_freq(fe, 62500l * p->frequency, T_ANALOG_TV,
p->std, bw);
return generic_set_freq(fe, 62500l * p->frequency,
T_ANALOG_TV, type, p->std);
}
static int xc2028_set_params(struct dvb_frontend *fe,
struct dvb_frontend_parameters *p)
{
struct xc2028_data *priv = fe->tuner_priv;
unsigned int type=0;
fe_bandwidth_t bw;
tuner_dbg("%s called\n", __FUNCTION__);
@ -948,11 +920,33 @@ static int xc2028_set_params(struct dvb_frontend *fe,
tuner_err("DTV type not implemented.\n");
return -EINVAL;
}
bw = p->u.ofdm.bandwidth;
return generic_set_tv_freq(fe, p->frequency, T_DIGITAL_TV,
0 /* NOT USED */,
p->u.ofdm.bandwidth);
if (bw == BANDWIDTH_7_MHZ || bw == BANDWIDTH_8_MHZ)
type |= F8MHZ;
if (priv->ctrl.d2633)
type |= D2633;
else
type |= D2620;
switch (bw) {
case BANDWIDTH_8_MHZ:
type |= DTV8;
break;
case BANDWIDTH_7_MHZ:
type |= DTV7;
break;
case BANDWIDTH_6_MHZ:
/* FIXME: Should allow select also ATSC */
type |= DTV6 | QAM;
break;
default:
tuner_err("error: bandwidth not supported.\n");
};
return generic_set_freq(fe, p->frequency,
T_DIGITAL_TV, type, 0);
}
static int xc2028_sleep(struct dvb_frontend *fe)
@ -1052,7 +1046,7 @@ static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
},
.set_config = xc2028_set_config,
.set_analog_params = xc2028_set_tv_freq,
.set_analog_params = xc2028_set_analog_freq,
.release = xc2028_dvb_release,
.get_frequency = xc2028_get_frequency,
.get_rf_strength = xc2028_signal,