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V4L/DVB (9928): Convert GP8PSK module to use S2API
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This patch converts the gp8psk module to use the S2API.
It pretends to be  DVB-S2 capable in order to allow the various
supported modulations (8PSK, QPSK-Turbo, etc), and keep software
compatibility with the S2API patches for Mythtv and VDR.

Signed-off by: Alan Nisota <alannisota@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Alan Nisota authored and Mauro Carvalho Chehab committed Dec 30, 2008
1 parent bddcf63 commit 02ebf23
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Showing 3 changed files with 131 additions and 26 deletions.
140 changes: 114 additions & 26 deletions drivers/media/dvb/dvb-usb/gp8psk-fe.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,20 @@ struct gp8psk_fe_state {
unsigned long status_check_interval;
};

static int gp8psk_tuned_to_DCII(struct dvb_frontend *fe)
{
struct gp8psk_fe_state *st = fe->demodulator_priv;
u8 status;
gp8psk_usb_in_op(st->d, GET_8PSK_CONFIG, 0, 0, &status, 1);
return status & bmDCtuned;
}

static int gp8psk_set_tuner_mode(struct dvb_frontend *fe, int mode)
{
struct gp8psk_fe_state *state = fe->demodulator_priv;
return gp8psk_usb_out_op(state->d, SET_8PSK_CONFIG, mode, 0, NULL, 0);
}

static int gp8psk_fe_update_status(struct gp8psk_fe_state *st)
{
u8 buf[6];
Expand Down Expand Up @@ -99,39 +113,114 @@ static int gp8psk_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_front
return 0;
}

static int gp8psk_fe_set_property(struct dvb_frontend *fe,
struct dtv_property *tvp)
{
deb_fe("%s(..)\n", __func__);
return 0;
}

static int gp8psk_fe_get_property(struct dvb_frontend *fe,
struct dtv_property *tvp)
{
deb_fe("%s(..)\n", __func__);
return 0;
}


static int gp8psk_fe_set_frontend(struct dvb_frontend* fe,
struct dvb_frontend_parameters *fep)
{
struct gp8psk_fe_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u8 cmd[10];
u32 freq = fep->frequency * 1000;
int gp_product_id = le16_to_cpu(state->d->udev->descriptor.idProduct);

deb_fe("%s()\n", __func__);

cmd[4] = freq & 0xff;
cmd[5] = (freq >> 8) & 0xff;
cmd[6] = (freq >> 16) & 0xff;
cmd[7] = (freq >> 24) & 0xff;

switch(fe->ops.info.type) {
case FE_QPSK:
cmd[0] = fep->u.qpsk.symbol_rate & 0xff;
cmd[1] = (fep->u.qpsk.symbol_rate >> 8) & 0xff;
cmd[2] = (fep->u.qpsk.symbol_rate >> 16) & 0xff;
cmd[3] = (fep->u.qpsk.symbol_rate >> 24) & 0xff;
cmd[8] = ADV_MOD_DVB_QPSK;
cmd[9] = 0x03; /*ADV_MOD_FEC_XXX*/
switch (c->delivery_system) {
case SYS_DVBS:
/* Only QPSK is supported for DVB-S */
if (c->modulation != QPSK) {
deb_fe("%s: unsupported modulation selected (%d)\n",
__func__, c->modulation);
return -EOPNOTSUPP;
}
c->fec_inner = FEC_AUTO;
break;
case SYS_DVBS2:
deb_fe("%s: DVB-S2 delivery system selected\n", __func__);
break;

default:
// other modes are unsuported right now
cmd[0] = 0;
cmd[1] = 0;
cmd[2] = 0;
cmd[3] = 0;
cmd[8] = 0;
deb_fe("%s: unsupported delivery system selected (%d)\n",
__func__, c->delivery_system);
return -EOPNOTSUPP;
}

cmd[0] = c->symbol_rate & 0xff;
cmd[1] = (c->symbol_rate >> 8) & 0xff;
cmd[2] = (c->symbol_rate >> 16) & 0xff;
cmd[3] = (c->symbol_rate >> 24) & 0xff;
switch (c->modulation) {
case QPSK:
if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
if (gp8psk_tuned_to_DCII(fe))
gp8psk_bcm4500_reload(state->d);
switch (c->fec_inner) {
case FEC_1_2:
cmd[9] = 0; break;
case FEC_2_3:
cmd[9] = 1; break;
case FEC_3_4:
cmd[9] = 2; break;
case FEC_5_6:
cmd[9] = 3; break;
case FEC_7_8:
cmd[9] = 4; break;
case FEC_AUTO:
cmd[9] = 5; break;
default:
cmd[9] = 5; break;
}
cmd[8] = ADV_MOD_DVB_QPSK;
break;
case PSK_8: /* PSK_8 is for compatibility with DN */
cmd[8] = ADV_MOD_TURBO_8PSK;
switch (c->fec_inner) {
case FEC_2_3:
cmd[9] = 0; break;
case FEC_3_4:
cmd[9] = 1; break;
case FEC_3_5:
cmd[9] = 2; break;
case FEC_5_6:
cmd[9] = 3; break;
case FEC_8_9:
cmd[9] = 4; break;
default:
cmd[9] = 0; break;
}
break;
case QAM_16: /* QAM_16 is for compatibility with DN */
cmd[8] = ADV_MOD_TURBO_16QAM;
cmd[9] = 0;
break;
default: /* Unknown modulation */
deb_fe("%s: unsupported modulation selected (%d)\n",
__func__, c->modulation);
return -EOPNOTSUPP;
}

gp8psk_usb_out_op(state->d,TUNE_8PSK,0,0,cmd,10);
if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
gp8psk_set_tuner_mode(fe, 0);
gp8psk_usb_out_op(state->d, TUNE_8PSK, 0, 0, cmd, 10);

state->lock = 0;
state->next_status_check = jiffies;
Expand All @@ -140,13 +229,6 @@ static int gp8psk_fe_set_frontend(struct dvb_frontend* fe,
return 0;
}

static int gp8psk_fe_get_frontend(struct dvb_frontend* fe,
struct dvb_frontend_parameters *fep)
{
return 0;
}


static int gp8psk_fe_send_diseqc_msg (struct dvb_frontend* fe,
struct dvb_diseqc_master_cmd *m)
{
Expand Down Expand Up @@ -261,18 +343,24 @@ static struct dvb_frontend_ops gp8psk_fe_ops = {
.symbol_rate_max = 45000000,
.symbol_rate_tolerance = 500, /* ppm */
.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_QPSK
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 is for compatibility
* (Myth incorrectly detects Turbo-QPSK as plain QAM-16)
*/
FE_CAN_QPSK | FE_CAN_QAM_16
},

.release = gp8psk_fe_release,

.init = NULL,
.sleep = NULL,

.set_property = gp8psk_fe_set_property,
.get_property = gp8psk_fe_get_property,
.set_frontend = gp8psk_fe_set_frontend,
.get_frontend = gp8psk_fe_get_frontend,

.get_tune_settings = gp8psk_fe_get_tune_settings,

.read_status = gp8psk_fe_read_status,
Expand Down
16 changes: 16 additions & 0 deletions drivers/media/dvb/dvb-usb/gp8psk.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -174,6 +174,22 @@ static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
return 0;
}

int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
{
u8 buf;
int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
/* Turn off 8psk power */
if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
return -EINVAL;
/* Turn On 8psk power */
if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
return -EINVAL;
/* load BCM4500 firmware */
if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
if (gp8psk_load_bcm4500fw(d))
return EINVAL;
return 0;
}

static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
Expand Down
1 change: 1 addition & 0 deletions drivers/media/dvb/dvb-usb/gp8psk.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -92,5 +92,6 @@ extern struct dvb_frontend * gp8psk_fe_attach(struct dvb_usb_device *d);
extern int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen);
extern int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
u16 index, u8 *b, int blen);
extern int gp8psk_bcm4500_reload(struct dvb_usb_device *d);

#endif

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