#include <linux/kernel.h>
#include <linux/i2c.h>
-//#include <linux/init.h>
-//#include <linux/delay.h>
-//#include <linux/string.h>
-//#include <linux/slab.h>
#include "dvb_frontend.h"
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
+static int buggy_sfn_workaround;
+module_param(buggy_sfn_workaround, int, 0644);
+MODULE_PARM_DESC(buggy_sfn_workaround, "Enable work-around for buggy SFNs (default: 0)");
+
#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "DiB3000MC/P:"); printk(args); printk("\n"); } } while (0)
struct dib3000mc_state {
fe_bandwidth_t current_bandwidth;
u16 dev_id;
+
+ u8 sfn_workaround_active :1;
};
static u16 dib3000mc_read_word(struct dib3000mc_state *state, u16 reg)
dib3000mc_set_channel_cfg(state, ch, 0);
// activates isi
- dib3000mc_write_word(state, 29, 0x1073);
+ if (state->sfn_workaround_active) {
+ dprintk("SFN workaround is active\n");
+ dib3000mc_write_word(state, 29, 0x1273);
+ dib3000mc_write_word(state, 108, 0x4000); // P_pha3_force_pha_shift
+ } else {
+ dib3000mc_write_word(state, 29, 0x1073);
+ dib3000mc_write_word(state, 108, 0x0000); // P_pha3_force_pha_shift
+ }
dib3000mc_set_adp_cfg(state, (u8)ch->u.ofdm.constellation);
if (ch->u.ofdm.transmission_mode == TRANSMISSION_MODE_8K) {
struct dvb_frontend_parameters *fep)
{
struct dib3000mc_state *state = fe->demodulator_priv;
+ int ret;
+
+ dib3000mc_set_output_mode(state, OUTMODE_HIGH_Z);
state->current_bandwidth = fep->u.ofdm.bandwidth;
dib3000mc_set_bandwidth(state, BANDWIDTH_TO_KHZ(fep->u.ofdm.bandwidth));
+ /* maybe the parameter has been changed */
+ state->sfn_workaround_active = buggy_sfn_workaround;
+
if (fe->ops.tuner_ops.set_params) {
fe->ops.tuner_ops.set_params(fe, fep);
msleep(100);
fep->u.ofdm.guard_interval == GUARD_INTERVAL_AUTO ||
fep->u.ofdm.constellation == QAM_AUTO ||
fep->u.ofdm.code_rate_HP == FEC_AUTO) {
- int i = 100, found;
+ int i = 1000, found;
dib3000mc_autosearch_start(fe, fep);
do {
dib3000mc_get_frontend(fe, fep);
}
+ ret = dib3000mc_tune(fe, fep);
+
/* make this a config parameter */
dib3000mc_set_output_mode(state, OUTMODE_MPEG2_FIFO);
-
- return dib3000mc_tune(fe, fep);
+ return ret;
}
static int dib3000mc_read_status(struct dvb_frontend *fe, fe_status_t *stat)