[PATCH] dvb: usb: add supprt for WideView WT-220U
Add support and rewrote some parts with the help of vendor information
(Thanks to Steve Chang from WideView, Inc.):
o added support for the WT-220U (Pensize DVB-T receiver)
o corrected byte order for unc,ber and the pid filter
o corrected number of pids that can be fetched at the same time.
o added some comments in Kconfig-file
o added USB IDs for the WT-220U
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/media/dvb/dvb-usb/dtt200u-fe.c b/drivers/media/dvb/dvb-usb/dtt200u-fe.c
index 7807f33..b032523 100644
--- a/drivers/media/dvb/dvb-usb/dtt200u-fe.c
+++ b/drivers/media/dvb/dvb-usb/dtt200u-fe.c
@@ -14,61 +14,58 @@
struct dtt200u_fe_state {
struct dvb_usb_device *d;
+ fe_status_t stat;
+
struct dvb_frontend_parameters fep;
struct dvb_frontend frontend;
};
-#define moan(which,what) info("unexpected value in '%s' for cmd '%02x' - please report to linux-dvb@linuxtv.org",which,what)
-
static int dtt200u_fe_read_status(struct dvb_frontend* fe, fe_status_t *stat)
{
struct dtt200u_fe_state *state = fe->demodulator_priv;
- u8 bw = GET_TUNE_STAT;
- u8 br[3] = { 0 };
-// u8 bdeb[5] = { 0 };
+ u8 st = GET_TUNE_STATUS, b[3];
- dvb_usb_generic_rw(state->d,&bw,1,br,3,0);
- switch (br[0]) {
+ dvb_usb_generic_rw(state->d,&st,1,b,3,0);
+
+ switch (b[0]) {
case 0x01:
- *stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ *stat = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+ FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
break;
- case 0x00:
- *stat = 0;
+ case 0x00: /* pending */
+ *stat = FE_TIMEDOUT; /* during set_frontend */
break;
default:
- moan("br[0]",GET_TUNE_STAT);
+ case 0x02: /* failed */
+ *stat = 0;
break;
}
-
-// bw[0] = 0x88;
-// dvb_usb_generic_rw(state->d,bw,1,bdeb,5,0);
-
-// deb_info("%02x: %02x %02x %02x %02x %02x\n",bw[0],bdeb[0],bdeb[1],bdeb[2],bdeb[3],bdeb[4]);
-
return 0;
}
+
static int dtt200u_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
{
struct dtt200u_fe_state *state = fe->demodulator_priv;
- u8 bw = GET_BER;
- *ber = 0;
- dvb_usb_generic_rw(state->d,&bw,1,(u8*) ber,3,0);
+ u8 bw = GET_VIT_ERR_CNT,b[3];
+ dvb_usb_generic_rw(state->d,&bw,1,b,3,0);
+ *ber = (b[0] << 16) | (b[1] << 8) | b[2];
return 0;
}
static int dtt200u_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
{
struct dtt200u_fe_state *state = fe->demodulator_priv;
- u8 bw = GET_UNK;
- *unc = 0;
- dvb_usb_generic_rw(state->d,&bw,1,(u8*) unc,3,0);
+ u8 bw = GET_RS_UNCOR_BLK_CNT,b[2];
+
+ dvb_usb_generic_rw(state->d,&bw,1,b,2,0);
+ *unc = (b[0] << 8) | b[1];
return 0;
}
static int dtt200u_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
{
struct dtt200u_fe_state *state = fe->demodulator_priv;
- u8 bw = GET_SIG_STRENGTH, b;
+ u8 bw = GET_AGC, b;
dvb_usb_generic_rw(state->d,&bw,1,&b,1,0);
*strength = (b << 8) | b;
return 0;
@@ -86,7 +83,7 @@
static int dtt200u_fe_init(struct dvb_frontend* fe)
{
struct dtt200u_fe_state *state = fe->demodulator_priv;
- u8 b = RESET_DEMOD;
+ u8 b = SET_INIT;
return dvb_usb_generic_write(state->d,&b,1);
}
@@ -98,8 +95,8 @@
static int dtt200u_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
{
tune->min_delay_ms = 1500;
- tune->step_size = 166667;
- tune->max_drift = 166667 * 2;
+ tune->step_size = 0;
+ tune->max_drift = 0;
return 0;
}
@@ -107,27 +104,32 @@
struct dvb_frontend_parameters *fep)
{
struct dtt200u_fe_state *state = fe->demodulator_priv;
+ int i;
+ fe_status_t st;
u16 freq = fep->frequency / 250000;
- u8 bw,bwbuf[2] = { SET_BANDWIDTH, 0 }, freqbuf[3] = { SET_FREQUENCY, 0, 0 };
+ u8 bwbuf[2] = { SET_BANDWIDTH, 0 },freqbuf[3] = { SET_RF_FREQ, 0, 0 };
switch (fep->u.ofdm.bandwidth) {
- case BANDWIDTH_8_MHZ: bw = 8; break;
- case BANDWIDTH_7_MHZ: bw = 7; break;
- case BANDWIDTH_6_MHZ: bw = 6; break;
+ case BANDWIDTH_8_MHZ: bwbuf[1] = 8; break;
+ case BANDWIDTH_7_MHZ: bwbuf[1] = 7; break;
+ case BANDWIDTH_6_MHZ: bwbuf[1] = 6; break;
case BANDWIDTH_AUTO: return -EOPNOTSUPP;
default:
return -EINVAL;
}
- deb_info("set_frontend\n");
- bwbuf[1] = bw;
dvb_usb_generic_write(state->d,bwbuf,2);
freqbuf[1] = freq & 0xff;
freqbuf[2] = (freq >> 8) & 0xff;
dvb_usb_generic_write(state->d,freqbuf,3);
- memcpy(&state->fep,fep,sizeof(struct dvb_frontend_parameters));
+ for (i = 0; i < 30; i++) {
+ msleep(20);
+ dtt200u_fe_read_status(fe, &st);
+ if (st & FE_TIMEDOUT)
+ continue;
+ }
return 0;
}
@@ -174,7 +176,7 @@
static struct dvb_frontend_ops dtt200u_fe_ops = {
.info = {
- .name = "DTT200U (Yakumo/Typhoon/Hama) DVB-T",
+ .name = "WideView USB DVB-T",
.type = FE_OFDM,
.frequency_min = 44250000,
.frequency_max = 867250000,