forked from Minki/linux
[media] as102: Move ancillary routines to the beggining
Avoid having function prototypes by moving some ancillary routines to the beginning of the file. No functional changes. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mauro Carvalho Chehab
parent
d8eb070b66
commit
b601d9a5d6
@ -216,7 +216,17 @@ int as102_dvb_register(struct as102_dev_t *as102_dev)
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goto edmxdinit;
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}
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ret = as102_dvb_register_fe(as102_dev, &as102_dev->dvb_fe);
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/* Attach the frontend */
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as102_dev->dvb_fe = dvb_attach(as102_attach, as102_dev->name,
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&as102_dev->bus_adap,
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as102_dev->elna_cfg);
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if (!as102_dev->dvb_fe) {
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dev_err(dev, "%s: as102_attach() failed: %d",
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__func__, ret);
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goto efereg;
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}
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ret = dvb_register_frontend(&as102_dev->dvb_adap, as102_dev->dvb_fe);
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if (ret < 0) {
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dev_err(dev, "%s: as102_dvb_register_frontend() failed: %d",
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__func__, ret);
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@ -252,7 +262,10 @@ edmxinit:
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void as102_dvb_unregister(struct as102_dev_t *as102_dev)
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{
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/* unregister as102 frontend */
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as102_dvb_unregister_fe(&as102_dev->dvb_fe);
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dvb_unregister_frontend(as102_dev->dvb_fe);
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/* detach frontend */
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dvb_frontend_detach(as102_dev->dvb_fe);
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/* unregister demux device */
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dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
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@ -60,17 +60,10 @@ struct as102_dev_t {
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uint8_t elna_cfg;
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struct dvb_adapter dvb_adap;
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struct dvb_frontend dvb_fe;
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struct dvb_frontend *dvb_fe;
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struct dvb_demux dvb_dmx;
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struct dmxdev dvb_dmxdev;
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/* demodulator stats */
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struct as10x_demod_stats demod_stats;
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/* signal strength */
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uint16_t signal_strength;
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/* bit error rate */
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uint32_t ber;
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/* timer handle to trig ts stream download */
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struct timer_list timer_handle;
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@ -84,5 +77,7 @@ struct as102_dev_t {
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int as102_dvb_register(struct as102_dev_t *dev);
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void as102_dvb_unregister(struct as102_dev_t *dev);
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int as102_dvb_register_fe(struct as102_dev_t *dev, struct dvb_frontend *fe);
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int as102_dvb_unregister_fe(struct dvb_frontend *dev);
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/* FIXME: move it to a separate header */
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struct dvb_frontend *as102_attach(const char *name,
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struct as10x_bus_adapter_t *bus_adap,
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uint8_t elna_cfg);
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@ -17,298 +17,19 @@
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#include "as10x_types.h"
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#include "as10x_cmd.h"
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static void as10x_fe_copy_tps_parameters(struct dtv_frontend_properties *dst,
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struct as10x_tps *src);
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struct as102_state {
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struct dvb_frontend frontend;
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struct as10x_demod_stats demod_stats;
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struct as10x_bus_adapter_t *bus_adap;
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static void as102_fe_copy_tune_parameters(struct as10x_tune_args *dst,
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struct dtv_frontend_properties *src);
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uint8_t elna_cfg;
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static int as102_fe_set_frontend(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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int ret = 0;
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struct as102_dev_t *dev;
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struct as10x_tune_args tune_args = { 0 };
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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if (mutex_lock_interruptible(&dev->bus_adap.lock))
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return -EBUSY;
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as102_fe_copy_tune_parameters(&tune_args, p);
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/* send abilis command: SET_TUNE */
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ret = as10x_cmd_set_tune(&dev->bus_adap, &tune_args);
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if (ret != 0)
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dev_dbg(&dev->bus_adap.usb_dev->dev,
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"as10x_cmd_set_tune failed. (err = %d)\n", ret);
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mutex_unlock(&dev->bus_adap.lock);
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return (ret < 0) ? -EINVAL : 0;
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}
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static int as102_fe_get_frontend(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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int ret = 0;
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struct as102_dev_t *dev;
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struct as10x_tps tps = { 0 };
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -EINVAL;
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if (mutex_lock_interruptible(&dev->bus_adap.lock))
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return -EBUSY;
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/* send abilis command: GET_TPS */
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ret = as10x_cmd_get_tps(&dev->bus_adap, &tps);
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if (ret == 0)
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as10x_fe_copy_tps_parameters(p, &tps);
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mutex_unlock(&dev->bus_adap.lock);
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return (ret < 0) ? -EINVAL : 0;
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}
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static int as102_fe_get_tune_settings(struct dvb_frontend *fe,
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struct dvb_frontend_tune_settings *settings) {
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settings->min_delay_ms = 1000;
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return 0;
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}
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static int as102_fe_read_status(struct dvb_frontend *fe, fe_status_t *status)
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{
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int ret = 0;
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struct as102_dev_t *dev;
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struct as10x_tune_status tstate = { 0 };
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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if (mutex_lock_interruptible(&dev->bus_adap.lock))
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return -EBUSY;
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/* send abilis command: GET_TUNE_STATUS */
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ret = as10x_cmd_get_tune_status(&dev->bus_adap, &tstate);
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if (ret < 0) {
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dev_dbg(&dev->bus_adap.usb_dev->dev,
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"as10x_cmd_get_tune_status failed (err = %d)\n",
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ret);
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goto out;
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}
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dev->signal_strength = tstate.signal_strength;
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dev->ber = tstate.BER;
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switch (tstate.tune_state) {
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case TUNE_STATUS_SIGNAL_DVB_OK:
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*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
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break;
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case TUNE_STATUS_STREAM_DETECTED:
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*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC;
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break;
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case TUNE_STATUS_STREAM_TUNED:
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*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC |
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FE_HAS_LOCK;
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break;
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default:
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*status = TUNE_STATUS_NOT_TUNED;
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}
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dev_dbg(&dev->bus_adap.usb_dev->dev,
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"tuner status: 0x%02x, strength %d, per: %d, ber: %d\n",
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tstate.tune_state, tstate.signal_strength,
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tstate.PER, tstate.BER);
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if (*status & FE_HAS_LOCK) {
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if (as10x_cmd_get_demod_stats(&dev->bus_adap,
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(struct as10x_demod_stats *) &dev->demod_stats) < 0) {
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memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
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dev_dbg(&dev->bus_adap.usb_dev->dev,
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"as10x_cmd_get_demod_stats failed (probably not tuned)\n");
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} else {
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dev_dbg(&dev->bus_adap.usb_dev->dev,
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"demod status: fc: 0x%08x, bad fc: 0x%08x, bytes corrected: 0x%08x , MER: 0x%04x\n",
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dev->demod_stats.frame_count,
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dev->demod_stats.bad_frame_count,
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dev->demod_stats.bytes_fixed_by_rs,
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dev->demod_stats.mer);
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}
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} else {
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memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
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}
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out:
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mutex_unlock(&dev->bus_adap.lock);
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return ret;
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}
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/*
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* Note:
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* - in AS102 SNR=MER
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* - the SNR will be returned in linear terms, i.e. not in dB
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* - the accuracy equals ±2dB for a SNR range from 4dB to 30dB
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* - the accuracy is >2dB for SNR values outside this range
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*/
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static int as102_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
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{
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struct as102_dev_t *dev;
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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*snr = dev->demod_stats.mer;
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return 0;
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}
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static int as102_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
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{
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struct as102_dev_t *dev;
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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*ber = dev->ber;
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return 0;
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}
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static int as102_fe_read_signal_strength(struct dvb_frontend *fe,
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u16 *strength)
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{
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struct as102_dev_t *dev;
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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*strength = (((0xffff * 400) * dev->signal_strength + 41000) * 2);
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return 0;
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}
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static int as102_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
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{
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struct as102_dev_t *dev;
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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if (dev->demod_stats.has_started)
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*ucblocks = dev->demod_stats.bad_frame_count;
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else
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*ucblocks = 0;
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return 0;
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}
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static int as102_fe_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
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{
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struct as102_dev_t *dev;
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int ret;
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dev = (struct as102_dev_t *) fe->tuner_priv;
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if (dev == NULL)
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return -ENODEV;
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if (mutex_lock_interruptible(&dev->bus_adap.lock))
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return -EBUSY;
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if (acquire) {
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if (elna_enable)
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as10x_cmd_set_context(&dev->bus_adap,
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CONTEXT_LNA, dev->elna_cfg);
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ret = as10x_cmd_turn_on(&dev->bus_adap);
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} else {
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ret = as10x_cmd_turn_off(&dev->bus_adap);
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}
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mutex_unlock(&dev->bus_adap.lock);
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return ret;
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}
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static struct dvb_frontend_ops as102_fe_ops = {
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.delsys = { SYS_DVBT },
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.info = {
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.name = "Abilis AS102 DVB-T",
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.frequency_min = 174000000,
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.frequency_max = 862000000,
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.frequency_stepsize = 166667,
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.caps = FE_CAN_INVERSION_AUTO
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| FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4
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| FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO
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| FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QPSK
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| FE_CAN_QAM_AUTO
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| FE_CAN_TRANSMISSION_MODE_AUTO
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| FE_CAN_GUARD_INTERVAL_AUTO
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| FE_CAN_HIERARCHY_AUTO
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| FE_CAN_RECOVER
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| FE_CAN_MUTE_TS
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},
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.set_frontend = as102_fe_set_frontend,
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.get_frontend = as102_fe_get_frontend,
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.get_tune_settings = as102_fe_get_tune_settings,
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.read_status = as102_fe_read_status,
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.read_snr = as102_fe_read_snr,
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.read_ber = as102_fe_read_ber,
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.read_signal_strength = as102_fe_read_signal_strength,
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.read_ucblocks = as102_fe_read_ucblocks,
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.ts_bus_ctrl = as102_fe_ts_bus_ctrl,
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/* signal strength */
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uint16_t signal_strength;
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/* bit error rate */
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uint32_t ber;
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};
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int as102_dvb_unregister_fe(struct dvb_frontend *fe)
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{
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/* unregister frontend */
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dvb_unregister_frontend(fe);
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/* detach frontend */
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dvb_frontend_detach(fe);
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return 0;
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}
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int as102_dvb_register_fe(struct as102_dev_t *as102_dev,
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struct dvb_frontend *dvb_fe)
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{
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int errno;
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struct dvb_adapter *dvb_adap;
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if (as102_dev == NULL)
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return -EINVAL;
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/* extract dvb_adapter */
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dvb_adap = &as102_dev->dvb_adap;
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/* init frontend callback ops */
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memcpy(&dvb_fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
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strncpy(dvb_fe->ops.info.name, as102_dev->name,
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sizeof(dvb_fe->ops.info.name));
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/* register dvb frontend */
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errno = dvb_register_frontend(dvb_adap, dvb_fe);
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if (errno == 0)
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dvb_fe->tuner_priv = as102_dev;
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return errno;
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}
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static void as10x_fe_copy_tps_parameters(struct dtv_frontend_properties *fe_tps,
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struct as10x_tps *as10x_tps)
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{
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@ -559,3 +280,248 @@ static void as102_fe_copy_tune_parameters(struct as10x_tune_args *tune_args,
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as102_fe_get_code_rate(params->code_rate_HP);
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}
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}
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static int as102_fe_set_frontend(struct dvb_frontend *fe)
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{
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struct as102_state *state = fe->demodulator_priv;
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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int ret = 0;
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struct as10x_tune_args tune_args = { 0 };
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if (mutex_lock_interruptible(&state->bus_adap->lock))
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return -EBUSY;
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as102_fe_copy_tune_parameters(&tune_args, p);
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/* send abilis command: SET_TUNE */
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ret = as10x_cmd_set_tune(state->bus_adap, &tune_args);
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if (ret != 0)
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dev_dbg(&state->bus_adap->usb_dev->dev,
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"as10x_cmd_set_tune failed. (err = %d)\n", ret);
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mutex_unlock(&state->bus_adap->lock);
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return (ret < 0) ? -EINVAL : 0;
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}
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static int as102_fe_get_frontend(struct dvb_frontend *fe)
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{
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struct as102_state *state = fe->demodulator_priv;
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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int ret = 0;
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struct as10x_tps tps = { 0 };
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if (mutex_lock_interruptible(&state->bus_adap->lock))
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return -EBUSY;
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/* send abilis command: GET_TPS */
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ret = as10x_cmd_get_tps(state->bus_adap, &tps);
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if (ret == 0)
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as10x_fe_copy_tps_parameters(p, &tps);
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mutex_unlock(&state->bus_adap->lock);
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return (ret < 0) ? -EINVAL : 0;
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}
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static int as102_fe_get_tune_settings(struct dvb_frontend *fe,
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struct dvb_frontend_tune_settings *settings) {
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settings->min_delay_ms = 1000;
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return 0;
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}
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static int as102_fe_read_status(struct dvb_frontend *fe, fe_status_t *status)
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{
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int ret = 0;
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struct as102_state *state = fe->demodulator_priv;
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struct as10x_tune_status tstate = { 0 };
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if (mutex_lock_interruptible(&state->bus_adap->lock))
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return -EBUSY;
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/* send abilis command: GET_TUNE_STATUS */
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ret = as10x_cmd_get_tune_status(state->bus_adap, &tstate);
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if (ret < 0) {
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dev_dbg(&state->bus_adap->usb_dev->dev,
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"as10x_cmd_get_tune_status failed (err = %d)\n",
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ret);
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goto out;
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}
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state->signal_strength = tstate.signal_strength;
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state->ber = tstate.BER;
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switch (tstate.tune_state) {
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case TUNE_STATUS_SIGNAL_DVB_OK:
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*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
|
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break;
|
||||
case TUNE_STATUS_STREAM_DETECTED:
|
||||
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC;
|
||||
break;
|
||||
case TUNE_STATUS_STREAM_TUNED:
|
||||
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC |
|
||||
FE_HAS_LOCK;
|
||||
break;
|
||||
default:
|
||||
*status = TUNE_STATUS_NOT_TUNED;
|
||||
}
|
||||
|
||||
dev_dbg(&state->bus_adap->usb_dev->dev,
|
||||
"tuner status: 0x%02x, strength %d, per: %d, ber: %d\n",
|
||||
tstate.tune_state, tstate.signal_strength,
|
||||
tstate.PER, tstate.BER);
|
||||
|
||||
if (*status & FE_HAS_LOCK) {
|
||||
if (as10x_cmd_get_demod_stats(state->bus_adap,
|
||||
(struct as10x_demod_stats *) &state->demod_stats) < 0) {
|
||||
memset(&state->demod_stats, 0, sizeof(state->demod_stats));
|
||||
dev_dbg(&state->bus_adap->usb_dev->dev,
|
||||
"as10x_cmd_get_demod_stats failed (probably not tuned)\n");
|
||||
} else {
|
||||
dev_dbg(&state->bus_adap->usb_dev->dev,
|
||||
"demod status: fc: 0x%08x, bad fc: 0x%08x, bytes corrected: 0x%08x , MER: 0x%04x\n",
|
||||
state->demod_stats.frame_count,
|
||||
state->demod_stats.bad_frame_count,
|
||||
state->demod_stats.bytes_fixed_by_rs,
|
||||
state->demod_stats.mer);
|
||||
}
|
||||
} else {
|
||||
memset(&state->demod_stats, 0, sizeof(state->demod_stats));
|
||||
}
|
||||
|
||||
out:
|
||||
mutex_unlock(&state->bus_adap->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Note:
|
||||
* - in AS102 SNR=MER
|
||||
* - the SNR will be returned in linear terms, i.e. not in dB
|
||||
* - the accuracy equals ±2dB for a SNR range from 4dB to 30dB
|
||||
* - the accuracy is >2dB for SNR values outside this range
|
||||
*/
|
||||
static int as102_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
|
||||
{
|
||||
struct as102_state *state = fe->demodulator_priv;
|
||||
|
||||
*snr = state->demod_stats.mer;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int as102_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
|
||||
{
|
||||
struct as102_state *state = fe->demodulator_priv;
|
||||
|
||||
*ber = state->ber;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int as102_fe_read_signal_strength(struct dvb_frontend *fe,
|
||||
u16 *strength)
|
||||
{
|
||||
struct as102_state *state = fe->demodulator_priv;
|
||||
|
||||
*strength = (((0xffff * 400) * state->signal_strength + 41000) * 2);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int as102_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
|
||||
{
|
||||
struct as102_state *state = fe->demodulator_priv;
|
||||
|
||||
if (state->demod_stats.has_started)
|
||||
*ucblocks = state->demod_stats.bad_frame_count;
|
||||
else
|
||||
*ucblocks = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int as102_fe_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
|
||||
{
|
||||
struct as102_state *state = fe->demodulator_priv;
|
||||
int ret;
|
||||
|
||||
if (mutex_lock_interruptible(&state->bus_adap->lock))
|
||||
return -EBUSY;
|
||||
|
||||
if (acquire) {
|
||||
if (elna_enable)
|
||||
as10x_cmd_set_context(state->bus_adap,
|
||||
CONTEXT_LNA, state->elna_cfg);
|
||||
|
||||
ret = as10x_cmd_turn_on(state->bus_adap);
|
||||
} else {
|
||||
ret = as10x_cmd_turn_off(state->bus_adap);
|
||||
}
|
||||
|
||||
mutex_unlock(&state->bus_adap->lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct dvb_frontend_ops as102_fe_ops = {
|
||||
.delsys = { SYS_DVBT },
|
||||
.info = {
|
||||
.name = "Abilis AS102 DVB-T",
|
||||
.frequency_min = 174000000,
|
||||
.frequency_max = 862000000,
|
||||
.frequency_stepsize = 166667,
|
||||
.caps = FE_CAN_INVERSION_AUTO
|
||||
| FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4
|
||||
| FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO
|
||||
| FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QPSK
|
||||
| FE_CAN_QAM_AUTO
|
||||
| FE_CAN_TRANSMISSION_MODE_AUTO
|
||||
| FE_CAN_GUARD_INTERVAL_AUTO
|
||||
| FE_CAN_HIERARCHY_AUTO
|
||||
| FE_CAN_RECOVER
|
||||
| FE_CAN_MUTE_TS
|
||||
},
|
||||
|
||||
.set_frontend = as102_fe_set_frontend,
|
||||
.get_frontend = as102_fe_get_frontend,
|
||||
.get_tune_settings = as102_fe_get_tune_settings,
|
||||
|
||||
.read_status = as102_fe_read_status,
|
||||
.read_snr = as102_fe_read_snr,
|
||||
.read_ber = as102_fe_read_ber,
|
||||
.read_signal_strength = as102_fe_read_signal_strength,
|
||||
.read_ucblocks = as102_fe_read_ucblocks,
|
||||
.ts_bus_ctrl = as102_fe_ts_bus_ctrl,
|
||||
};
|
||||
|
||||
struct dvb_frontend *as102_attach(const char *name,
|
||||
struct as10x_bus_adapter_t *bus_adap,
|
||||
uint8_t elna_cfg)
|
||||
{
|
||||
struct as102_state *state;
|
||||
struct dvb_frontend *fe;
|
||||
|
||||
state = kzalloc(sizeof(struct as102_state), GFP_KERNEL);
|
||||
if (state == NULL) {
|
||||
dev_err(&bus_adap->usb_dev->dev,
|
||||
"%s: unable to allocate memory for state\n", __func__);
|
||||
return NULL;
|
||||
}
|
||||
fe = &state->frontend;
|
||||
fe->demodulator_priv = state;
|
||||
state->bus_adap = bus_adap;
|
||||
state->elna_cfg = elna_cfg;
|
||||
|
||||
/* init frontend callback ops */
|
||||
memcpy(&fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
|
||||
strncpy(fe->ops.info.name, name, sizeof(fe->ops.info.name));
|
||||
|
||||
return fe;
|
||||
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(as102_attach);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user