[DVB patch 35/54] bt8xx: Nebula DigiTV mt352 support

Johannes Stezenbach
2005-09-04T23:40:55Z

[-- Attachment #1: dvb-bt8xx-add-nebula-digitv-mt352-support.patch --]
[-- Type: text/plain, Size: 8598 bytes --]

From: David Johnson <dj@david-web.co.uk>

Add support for Nebula DigiTV PCI cards with the MT352 frontend.

Signed-off-by: David Johnson <dj@david-web.co.uk>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>

drivers/media/dvb/bt8xx/dvb-bt8xx.c | 141 +++++++++++++++++++++++++++---------
1 file changed, 108 insertions(+), 33 deletions(-)

--- linux-2.6.13-git4.orig/drivers/media/dvb/bt8xx/dvb-bt8xx.c 2005-09-04 22:28:28.000000000 +0200
+++ linux-2.6.13-git4/drivers/media/dvb/bt8xx/dvb-bt8xx.c 2005-09-04 22:28:29.000000000 +0200
@@ -45,6 +45,8 @@ MODULE_PARM_DESC(debug, "Turn on/off deb
if (debug) printk(KERN_DEBUG args); \
while (0)

+#define IF_FREQUENCYx6 217 /* 6 * 36.16666666667MHz */
+
static void dvb_bt8xx_task(unsigned long data)
{
struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *)data;
@@ -150,7 +152,6 @@ static int thomson_dtt7579_pll_set(struc
unsigned char bs = 0;
unsigned char cp = 0;

- #define IF_FREQUENCYx6 217 /* 6 * 36.16666666667MHz */
div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;

if (params->frequency < 542000000)
@@ -326,7 +327,6 @@ static int advbt771_samsung_tdtc9251dh0_
unsigned char bs = 0;
unsigned char cp = 0;

- #define IF_FREQUENCYx6 217 /* 6 * 36.16666666667MHz */
div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;

if (params->frequency < 150000000)
@@ -416,8 +416,7 @@ static void or51211_reset(struct dvb_fro
/* reset & PRM1,2&4 are outputs */
int ret = bttv_gpio_enable(bt->bttv_nr, 0x001F, 0x001F);
if (ret != 0)
- printk(KERN_WARNING "or51211: Init Error - Can't Reset DVR "
- "(%i)\n", ret);
+ printk(KERN_WARNING "or51211: Init Error - Can't Reset DVR (%i)\n", ret);
bttv_write_gpio(bt->bttv_nr, 0x001F, 0x0000); /* Reset */
msleep(20);
/* Now set for normal operation */
@@ -473,6 +472,80 @@ static struct nxt6000_config vp3021_alps
.pll_set = vp3021_alps_tded4_pll_set,
};

+static int digitv_alps_tded4_demod_init(struct dvb_frontend* fe)
+{
+ static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
+ static u8 mt352_reset [] = { 0x50, 0x80 };
+ static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
+ static u8 mt352_agc_cfg [] = { 0x67, 0x20, 0xa0 };
+ static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
+
+ mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
+ udelay(2000);
+ mt352_write(fe, mt352_reset, sizeof(mt352_reset));
+ mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
+ mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
+ mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
+
+ return 0;
+}
+
+static int digitv_alps_tded4_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf)
+{
+ u32 div;
+ struct dvb_ofdm_parameters *op = &params->u.ofdm;
+
+ div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
+
+ pllbuf[0] = 0xc2;
+ pllbuf[1] = (div >> 8) & 0x7F;
+ pllbuf[2] = div & 0xFF;
+ pllbuf[3] = 0x85;
+
+ dprintk("frequency %u, div %u\n", params->frequency, div);
+
+ if (params->frequency < 470000000)
+ pllbuf[4] = 0x02;
+ else if (params->frequency > 823000000)
+ pllbuf[4] = 0x88;
+ else
+ pllbuf[4] = 0x08;
+
+ if (op->bandwidth == 8)
+ pllbuf[4] |= 0x04;
+
+ return 0;
+}
+
+static void digitv_alps_tded4_reset(struct dvb_bt8xx_card *bt)
+{
+ /*
+ * Reset the frontend, must be called before trying
+ * to initialise the MT352 or mt352_attach
+ * will fail.
+ *
+ * Presumably not required for the NXT6000 frontend.
+ *
+ */
+
+ int ret = bttv_gpio_enable(bt->bttv_nr, 0x08, 0x08);
+ if (ret != 0)
+ printk(KERN_WARNING "digitv_alps_tded4: Init Error - Can't Reset DVR (%i)\n", ret);
+
+ /* Pulse the reset line */
+ bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
+ bttv_write_gpio(bt->bttv_nr, 0x08, 0x00); /* Low */
+ msleep(100);
+
+ bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
+}
+
+static struct mt352_config digitv_alps_tded4_config = {
+ .demod_address = 0x0a,
+ .demod_init = digitv_alps_tded4_demod_init,
+ .pll_set = digitv_alps_tded4_pll_set,
+};
+
static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
{
int ret;
@@ -480,42 +553,51 @@ static void frontend_init(struct dvb_bt8

switch(type) {
#ifdef BTTV_DVICO_DVBT_LITE
- case BTTV_DVICO_DVBT_LITE:
+ case BTTV_DVICO_DVBT_LITE:
card->fe = mt352_attach(&thomson_dtt7579_config, card->i2c_adapter);
if (card->fe != NULL) {
card->fe->ops->info.frequency_min = 174000000;
card->fe->ops->info.frequency_max = 862000000;
- break;
}
break;
#endif

#ifdef BTTV_TWINHAN_VP3021
- case BTTV_TWINHAN_VP3021:
+ case BTTV_TWINHAN_VP3021:
#else
- case BTTV_NEBULA_DIGITV:
+ case BTTV_NEBULA_DIGITV:
#endif
+ /*
+ * It is possible to determine the correct frontend using the I2C bus (see the Nebula SDK);
+ * this would be a cleaner solution than trying each frontend in turn.
+ */
+
+ /* Old Nebula (marked (c)2003 on high profile pci card) has nxt6000 demod */
card->fe = nxt6000_attach(&vp3021_alps_tded4_config, card->i2c_adapter);
if (card->fe != NULL)
- break;
+ dprintk ("dvb_bt8xx: an nxt6000 was detected on your digitv card\n");
+
+ /* New Nebula (marked (c)2005 on low profile pci card) has mt352 demod */
+ digitv_alps_tded4_reset(card);
+ card->fe = mt352_attach(&digitv_alps_tded4_config, card->i2c_adapter);
+
+ if (card->fe != NULL)
+ dprintk ("dvb_bt8xx: an mt352 was detected on your digitv card\n");
break;

- case BTTV_AVDVBT_761:
+ case BTTV_AVDVBT_761:
card->fe = sp887x_attach(&microtune_mt7202dtf_config, card->i2c_adapter);
- if (card->fe != NULL)
- break;
break;

- case BTTV_AVDVBT_771:
+ case BTTV_AVDVBT_771:
card->fe = mt352_attach(&advbt771_samsung_tdtc9251dh0_config, card->i2c_adapter);
if (card->fe != NULL) {
card->fe->ops->info.frequency_min = 174000000;
card->fe->ops->info.frequency_max = 862000000;
- break;
}
break;

- case BTTV_TWINHAN_DST:
+ case BTTV_TWINHAN_DST:
/* DST is not a frontend driver !!! */
state = (struct dst_state *) kmalloc(sizeof (struct dst_state), GFP_KERNEL);
/* Setup the Card */
@@ -534,21 +616,14 @@ static void frontend_init(struct dvb_bt8
/* Conditional Access device */
if (state->dst_hw_cap & DST_TYPE_HAS_CA)
ret = dst_ca_attach(state, &card->dvb_adapter);
-
- if (card->fe != NULL)
- break;
break;

- case BTTV_PINNACLESAT:
+ case BTTV_PINNACLESAT:
card->fe = cx24110_attach(&pctvsat_config, card->i2c_adapter);
- if (card->fe != NULL)
- break;
break;

- case BTTV_PC_HDTV:
+ case BTTV_PC_HDTV:
card->fe = or51211_attach(&or51211_config, card->i2c_adapter);
- if (card->fe != NULL)
- break;
break;
}

@@ -669,7 +744,7 @@ static int dvb_bt8xx_probe(struct device
card->i2c_adapter = &sub->core->i2c_adap;

switch(sub->core->type) {
- case BTTV_PINNACLESAT:
+ case BTTV_PINNACLESAT:
card->gpio_mode = 0x0400c060;
/* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
@@ -678,7 +753,7 @@ static int dvb_bt8xx_probe(struct device
break;

#ifdef BTTV_DVICO_DVBT_LITE
- case BTTV_DVICO_DVBT_LITE:
+ case BTTV_DVICO_DVBT_LITE:
#endif
card->gpio_mode = 0x0400C060;
card->op_sync_orin = 0;
@@ -689,25 +764,25 @@ static int dvb_bt8xx_probe(struct device
break;

#ifdef BTTV_TWINHAN_VP3021
- case BTTV_TWINHAN_VP3021:
+ case BTTV_TWINHAN_VP3021:
#else
- case BTTV_NEBULA_DIGITV:
+ case BTTV_NEBULA_DIGITV:
#endif
- case BTTV_AVDVBT_761:
+ case BTTV_AVDVBT_761:
card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
card->op_sync_orin = 0;
card->irq_err_ignore = 0;
/* A_PWRDN DA_SBR DA_APP (high speed serial) */
break;

- case BTTV_AVDVBT_771: //case 0x07711461:
+ case BTTV_AVDVBT_771: //case 0x07711461:
card->gpio_mode = 0x0400402B;
card->op_sync_orin = BT878_RISC_SYNC_MASK;
card->irq_err_ignore = 0;
/* A_PWRDN DA_SBR DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
break;

- case BTTV_TWINHAN_DST:
+ case BTTV_TWINHAN_DST:
card->gpio_mode = 0x2204f2c;
card->op_sync_orin = BT878_RISC_SYNC_MASK;
card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
@@ -725,13 +800,13 @@ static int dvb_bt8xx_probe(struct device
* RISC+FIFO ENABLE */
break;

- case BTTV_PC_HDTV:
+ case BTTV_PC_HDTV:
card->gpio_mode = 0x0100EC7B;
card->op_sync_orin = 0;
card->irq_err_ignore = 0;
break;

- default:
+ default:
printk(KERN_WARNING "dvb_bt8xx: Unknown bttv card type: %d.\n",
sub->core->type);
kfree(card);

--