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V4L/DVB (6128): hybrid tuner refactoring core changes, phase 1
Prepare tuner-core for conversion of tuner sub-drivers into dvb_frontend modules Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Mike Isely <isely@pobox.com> Acked-by: Steven Toth <stoth@hauppauge.com> Acked-by: Patrick Boettcher <pb@linuxtv.org> Acked-by: Jarod Wilson <jwilson@redhat.com> Acked-by: Oliver Endriss <o.endriss@gmx.de> Acked-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -62,6 +62,13 @@ struct dvb_tuner_info {
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u32 bandwidth_step;
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};
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struct analog_parameters {
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unsigned int frequency;
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unsigned int mode;
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unsigned int audmode;
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u64 std;
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};
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struct dvb_tuner_ops {
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struct dvb_tuner_info info;
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@ -72,6 +79,7 @@ struct dvb_tuner_ops {
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/** This is for simple PLLs - set all parameters in one go. */
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int (*set_params)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
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int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p);
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/** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */
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int (*calc_regs)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len);
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@ -80,6 +88,7 @@ struct dvb_tuner_ops {
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int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
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#define TUNER_STATUS_LOCKED 1
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#define TUNER_STATUS_STEREO 2
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int (*get_status)(struct dvb_frontend *fe, u32 *status);
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/** These are provided seperately from set_params in order to facilitate silicon
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@ -70,6 +70,40 @@ static struct i2c_client client_template;
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/* ---------------------------------------------------------------------- */
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static void fe_set_freq(struct tuner *t, unsigned int freq)
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{
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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struct analog_parameters params = {
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.frequency = freq,
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.mode = t->mode,
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.audmode = t->audmode,
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.std = t->std
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};
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if (NULL == fe_tuner_ops->set_analog_params) {
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tuner_warn("Tuner frontend module has no way to set freq\n");
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return;
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}
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fe_tuner_ops->set_analog_params(&t->fe, ¶ms);
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}
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static void fe_release(struct tuner *t)
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{
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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if (fe_tuner_ops->release)
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fe_tuner_ops->release(&t->fe);
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}
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static void fe_standby(struct tuner *t)
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{
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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if (fe_tuner_ops->sleep)
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fe_tuner_ops->sleep(&t->fe);
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}
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/* Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz */
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static void set_tv_freq(struct i2c_client *c, unsigned int freq)
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{
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@ -171,6 +205,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
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int (*tuner_callback) (void *dev, int command,int arg))
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{
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struct tuner *t = i2c_get_clientdata(c);
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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unsigned char buffer[4];
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if (type == UNSET || type == TUNER_ABSENT) {
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@ -258,6 +293,17 @@ static void set_type(struct i2c_client *c, unsigned int type,
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break;
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}
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if (fe_tuner_ops->set_analog_params) {
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strlcpy(t->i2c.name, fe_tuner_ops->info.name, sizeof(t->i2c.name));
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t->ops.set_tv_freq = fe_set_freq;
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t->ops.set_radio_freq = fe_set_freq;
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t->ops.standby = fe_standby;
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t->ops.release = fe_release;
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}
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tuner_info("type set to %s\n", t->i2c.name);
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if (t->mode_mask == T_UNINITIALIZED)
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t->mode_mask = new_mode_mask;
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@ -429,6 +475,7 @@ static int tuner_fixup_std(struct tuner *t)
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static void tuner_status(struct tuner *t)
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{
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unsigned long freq, freq_fraction;
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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const char *p;
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switch (t->mode) {
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@ -449,6 +496,15 @@ static void tuner_status(struct tuner *t)
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tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std);
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if (t->mode != V4L2_TUNER_RADIO)
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return;
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if (fe_tuner_ops->get_status) {
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u32 tuner_status;
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fe_tuner_ops->get_status(&t->fe, &tuner_status);
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if (tuner_status & TUNER_STATUS_LOCKED)
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tuner_info("Tuner is locked.\n");
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if (tuner_status & TUNER_STATUS_STEREO)
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tuner_info("Stereo: yes\n");
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}
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if (t->ops.has_signal) {
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tuner_info("Signal strength: %d\n", t->ops.has_signal(t));
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}
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@ -634,6 +690,7 @@ static inline int check_v4l2(struct tuner *t)
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static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
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{
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struct tuner *t = i2c_get_clientdata(client);
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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if (tuner_debug>1)
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v4l_i2c_print_ioctl(&(t->i2c),cmd);
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@ -720,15 +777,27 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
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return 0;
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if (V4L2_TUNER_RADIO == t->mode) {
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if (t->ops.has_signal)
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vt->signal = t->ops.has_signal(t);
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if (t->ops.is_stereo) {
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if (t->ops.is_stereo(t))
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vt->flags |=
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VIDEO_TUNER_STEREO_ON;
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else
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vt->flags &=
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~VIDEO_TUNER_STEREO_ON;
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if (fe_tuner_ops->get_status) {
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u32 tuner_status;
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fe_tuner_ops->get_status(&t->fe, &tuner_status);
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if (tuner_status & TUNER_STATUS_STEREO)
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vt->flags |= VIDEO_TUNER_STEREO_ON;
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else
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vt->flags &= ~VIDEO_TUNER_STEREO_ON;
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vt->signal = tuner_status & TUNER_STATUS_LOCKED
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? 65535 : 0;
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} else {
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if (t->ops.is_stereo) {
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if (t->ops.is_stereo(t))
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vt->flags |=
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VIDEO_TUNER_STEREO_ON;
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else
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vt->flags &=
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~VIDEO_TUNER_STEREO_ON;
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}
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if (t->ops.has_signal)
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vt->signal = t->ops.has_signal(t);
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}
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vt->flags |= VIDEO_TUNER_LOW; /* Allow freqs at 62.5 Hz */
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@ -751,9 +820,17 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
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if (check_v4l2(t) == EINVAL)
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return 0;
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if (V4L2_TUNER_RADIO == t->mode && t->ops.is_stereo)
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va->mode = t->ops.is_stereo(t)
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? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO;
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if (V4L2_TUNER_RADIO == t->mode) {
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if (fe_tuner_ops->get_status) {
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u32 tuner_status;
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fe_tuner_ops->get_status(&t->fe, &tuner_status);
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va->mode = (tuner_status & TUNER_STATUS_STEREO)
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? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO;
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} else if (t->ops.is_stereo)
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va->mode = t->ops.is_stereo(t)
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? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO;
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}
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return 0;
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}
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#endif
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@ -804,6 +881,15 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
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return 0;
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switch_v4l2();
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f->type = t->mode;
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if (fe_tuner_ops->get_frequency) {
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u32 abs_freq;
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fe_tuner_ops->get_frequency(&t->fe, &abs_freq);
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f->frequency = (V4L2_TUNER_RADIO == t->mode) ?
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(abs_freq * 2 + 125/2) / 125 :
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(abs_freq + 62500/2) / 62500;
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break;
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}
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f->frequency = (V4L2_TUNER_RADIO == t->mode) ?
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t->radio_freq : t->tv_freq;
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break;
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@ -828,16 +914,23 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
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}
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/* radio mode */
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if (t->ops.has_signal)
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tuner->signal = t->ops.has_signal(t);
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tuner->rxsubchans =
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V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
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if (t->ops.is_stereo) {
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tuner->rxsubchans = t->ops.is_stereo(t) ?
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V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
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}
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if (fe_tuner_ops->get_status) {
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u32 tuner_status;
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fe_tuner_ops->get_status(&t->fe, &tuner_status);
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tuner->rxsubchans = (tuner_status & TUNER_STATUS_STEREO) ?
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V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
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tuner->signal = tuner_status & TUNER_STATUS_LOCKED ? 65535 : 0;
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} else {
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if (t->ops.is_stereo) {
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tuner->rxsubchans = t->ops.is_stereo(t) ?
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V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
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}
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if (t->ops.has_signal)
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tuner->signal = t->ops.has_signal(t);
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}
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tuner->capability |=
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V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
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tuner->audmode = t->audmode;
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@ -25,6 +25,7 @@
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#include <linux/videodev2.h>
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#include <linux/i2c.h>
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#include "tuner-i2c.h"
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#include "dvb_frontend.h"
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extern unsigned const int tuner_count;
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@ -58,6 +59,8 @@ struct tuner {
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int using_v4l2;
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void *priv;
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struct dvb_frontend fe;
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/* used by tda9887 */
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unsigned int tda9887_config;
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