On Sun April 21 2013 21:00:37 Mauro Carvalho Chehab wrote:
> Instead of using global values for tuner ranges, store them
> internally. That fixes the need of using a different range
> for SDR radio, and will help to latter add a tuner ops to
> retrieve the tuner range for SDR mode.
>
> Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com>
> ---
> drivers/media/v4l2-core/tuner-core.c | 59
> ++++++++++++++++++++++--------------
> 1 file changed, 37 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/tuner-core.c
> b/drivers/media/v4l2-core/tuner-core.c
> index e54b5ae..abdcda4 100644
> --- a/drivers/media/v4l2-core/tuner-core.c
> +++ b/drivers/media/v4l2-core/tuner-core.c
> @@ -67,8 +67,8 @@ static char secam[] = "--";
> static char ntsc[] = "-";
>
> module_param_named(debug, tuner_debug, int, 0644);
> -module_param_array(tv_range, int, NULL, 0644);
> -module_param_array(radio_range, int, NULL, 0644);
> +module_param_array(tv_range, int, NULL, 0444);
> +module_param_array(radio_range, int, NULL, 0444);
Shouldn't we add a sdr_range here as well?
> module_param_string(pal, pal, sizeof(pal), 0644);
> module_param_string(secam, secam, sizeof(secam), 0644);
> module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
> @@ -134,6 +134,8 @@ struct tuner {
> unsigned int type; /* chip type id */
> void *config;
> const char *name;
> +
> + u32 radio_range[2], tv_range[2], sdr_range[2];
> };
>
> /*
> @@ -266,7 +268,7 @@ static void set_type(struct i2c_client *c, unsigned int
> type,
> struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
> struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
> unsigned char buffer[4];
> - int tune_now = 1;
> + int i, tune_now = 1;
>
> if (type == UNSET || type == TUNER_ABSENT) {
> tuner_dbg("tuner 0x%02x: Tuner type absent\n", c->addr);
> @@ -451,6 +453,13 @@ static void set_type(struct i2c_client *c, unsigned int
> type,
> set_tv_freq(c, t->tv_freq);
> }
>
> + /* Initializes the tuner ranges from modprobe parameters */
> + for (i = 0; i < 2; i++) {
> + t->radio_range[i] = radio_range[i] * 16000;
> + t->sdr_range[i] = tv_range[i] * 16000;
> + t->tv_range[i] = tv_range[i] * 16;
> + }
> +
> tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n",
> c->adapter->name, c->driver->driver.name, c->addr << 1, type,
> t->mode_mask);
> @@ -831,16 +840,16 @@ static void set_tv_freq(struct i2c_client *c, unsigned
> int freq)
> tuner_warn("Tuner has no way to set tv freq\n");
> return;
> }
> - if (freq < tv_range[0] * 16 || freq > tv_range[1] * 16) {
> + if (freq < t->tv_range[0] || freq > t->tv_range[1]) {
> tuner_dbg("TV freq (%d.%02d) out of range (%d-%d)\n",
> - freq / 16, freq % 16 * 100 / 16, tv_range[0],
> - tv_range[1]);
> + freq / 16, freq % 16 * 100 / 16, t->tv_range[0] / 16,
> + t->tv_range[1] / 16);
> /* V4L2 spec: if the freq is not possible then the closest
> possible value should be selected */
> - if (freq < tv_range[0] * 16)
> - freq = tv_range[0] * 16;
> + if (freq < t->tv_range[0])
> + freq = t->tv_range[0];
> else
> - freq = tv_range[1] * 16;
> + freq = t->tv_range[1];
> }
> params.frequency = freq;
> tuner_dbg("tv freq set to %d.%02d\n",
> @@ -957,7 +966,7 @@ static void set_radio_freq(struct i2c_client *c, unsigned
> int freq)
> {
> struct tuner *t = to_tuner(i2c_get_clientdata(c));
> struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
> -
> + u32 *range;
> struct analog_parameters params = {
> .mode = t->mode,
> .audmode = t->audmode,
> @@ -972,16 +981,22 @@ static void set_radio_freq(struct i2c_client *c,
> unsigned int freq)
> tuner_warn("tuner has no way to set radio frequency\n");
> return;
> }
> - if (freq < radio_range[0] * 16000 || freq > radio_range[1] * 16000) {
> +
> + if (V4L2_TUNER_IS_SDR(t->mode))
> + range = t->sdr_range;
> + else
> + range = t->radio_range;
> +
> + if (freq < range[0] || freq > range[1]) {
> tuner_dbg("radio freq (%d.%02d) out of range (%d-%d)\n",
> freq / 16000, freq % 16000 * 100 / 16000,
> - radio_range[0], radio_range[1]);
> + range[0] / 16000, range[1] / 16000);
> /* V4L2 spec: if the freq is not possible then the closest
> possible value should be selected */
> - if (freq < radio_range[0] * 16000)
> - freq = radio_range[0] * 16000;
> + if (freq < range[0])
> + freq = range[0];
> else
> - freq = radio_range[1] * 16000;
> + freq = range[1];
> }
> params.frequency = freq;
> tuner_dbg("radio freq set to %d.%02d\n",
> @@ -1184,8 +1199,8 @@ static int tuner_g_tuner(struct v4l2_subdev *sd, struct
> v4l2_tuner *vt)
> }
> if (!V4L2_TUNER_IS_RADIO(vt->type)) {
> vt->capability |= V4L2_TUNER_CAP_NORM;
> - vt->rangelow = tv_range[0] * 16;
> - vt->rangehigh = tv_range[1] * 16;
> + vt->rangelow = t->tv_range[0];
> + vt->rangehigh = t->tv_range[1];
> return 0;
> }
>
> @@ -1193,11 +1208,11 @@ static int tuner_g_tuner(struct v4l2_subdev *sd,
> struct v4l2_tuner *vt)
> vt->capability |= V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
>
> if (V4L2_TUNER_IS_SDR(vt->type)) {
> - vt->rangelow = tv_range[0] * 16000;
> - vt->rangehigh = tv_range[1] * 16000;
> - else {
> - vt->rangelow = radio_range[0] * 16000;
> - vt->rangehigh = radio_range[1] * 16000;
> + vt->rangelow = t->sdr_range[0];
> + vt->rangehigh = t->sdr_range[1];
Ah, OK. So using tv_range was just a temporary measure.
> + } else {
> + vt->rangelow = t->radio_range[0];
> + vt->rangehigh = t->radio_range[1];
> }
> /* Check if the radio device is active */
> if (vt->type != t->mode)
>
Regards,
Hans
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