/*
* qt1010.h - DVB-T Tuner support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _QT1010_H_
#define _QT1010_H_
#define QT1010_W 0
#define QT1010_R 1
/* Not actual hw limits. */
#define QT1010_MIN_STEP 2000000
#define QT1010_MIN_FREQ 48000000
static int qt1010_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
{
int i;
int div, mod;
struct {
u8 read, reg, value;
} rd[46] = { { QT1010_W, 0x01, 0x80 },
{ QT1010_W, 0x02, 0x3f },
{ QT1010_W, 0x05, 0xff }, /* c */
{ QT1010_W, 0x06, 0x44 },
{ QT1010_W, 0x07, 0xff }, /* c */
{ QT1010_W, 0x08, 0x08 },
{ QT1010_W, 0x09, 0xff }, /* c */
{ QT1010_W, 0x0a, 0xff }, /* c */
{ QT1010_W, 0x0b, 0xff }, /* c */
{ QT1010_W, 0x0c, 0xe1 },
{ QT1010_W, 0x1a, 0xff }, /* 10 c */
{ QT1010_W, 0x1b, 0x00 },
{ QT1010_W, 0x1c, 0x89 },
{ QT1010_W, 0x11, 0xff }, /* c */
{ QT1010_W, 0x12, 0x91 },
{ QT1010_W, 0x22, 0xff }, /* c */
{ QT1010_W, 0x1e, 0x00 },
{ QT1010_W, 0x1e, 0xd0 },
{ QT1010_R, 0x22, 0xff }, /* c read */
{ QT1010_W, 0x1e, 0x00 },
{ QT1010_R, 0x05, 0xff }, /* 20 c read */
{ QT1010_R, 0x22, 0xff }, /* c read */
{ QT1010_W, 0x23, 0xd0 },
{ QT1010_W, 0x1e, 0x00 },
{ QT1010_W, 0x1e, 0xe0 },
{ QT1010_R, 0x23, 0xff }, /* c read */
{ QT1010_W, 0x1e, 0x00 },
{ QT1010_W, 0x24, 0xd0 },
{ QT1010_W, 0x1e, 0x00 },
{ QT1010_W, 0x1e, 0xf0 },
{ QT1010_R, 0x24, 0xff }, /* 30 c read */
{ QT1010_W, 0x1e, 0x00 },
{ QT1010_W, 0x14, 0x7f },
{ QT1010_W, 0x15, 0x7f },
{ QT1010_W, 0x05, 0xff }, /* c */
{ QT1010_W, 0x06, 0x00 },
{ QT1010_W, 0x15, 0x1f },
{ QT1010_W, 0x16, 0xff },
{ QT1010_W, 0x18, 0xff },
{ QT1010_W, 0x1f, 0xff }, /* c */
{ QT1010_W, 0x20, 0xff }, /* 40 c */
{ QT1010_W, 0x21, 0x53 },
{ QT1010_W, 0x25, 0xbd },
{ QT1010_W, 0x26, 0x15 },
{ QT1010_W, 0x02, 0x00 },
{ QT1010_W, 0x01, 0x00 },
};
struct i2c_msg msg;
struct dvb_usb_adapter *adap = fe->dvb->priv;
unsigned long freq = params->frequency;
if (freq % QT1010_MIN_STEP)
printk("frequency not supported.\n");
div = (freq - QT1010_MIN_FREQ) / QT1010_MIN_STEP;
mod = (div + 16 - 9) % 16;
/* 0x5 */
if (div >= 377)
rd[2].value = 0x74;
else if (div >= 265)
rd[2].value = 0x54;
else if (div >= 121)
rd[2].value = 0x34;
else
rd[2].value = 0x14;
/* 0x7 */
rd[4].value = (((freq - QT1010_MIN_FREQ) / 1000000) * 9975 + 12960000) / 320000;
/* 09 */
if (mod < 4)
rd[6].value = 0x1d;
else
rd[6].value = 0x1c;
/* 0a */
if (mod < 2)
rd[7].value = 0x09;
else if (mod < 4)
rd[7].value = 0x08;
else if (mod < 6)
rd[7].value = 0x0f;
else if (mod < 8)
rd[7].value = 0x0e;
else if (mod < 10)
rd[7].value = 0x0d;
else if (mod < 12)
rd[7].value = 0x0c;
else if (mod < 14)
rd[7].value = 0x0b;
else
rd[7].value = 0x0a;
/* 0b */
if (div & 1)
rd[8].value = 0x45;
else
rd[8].value = 0x44;
/* 1a */
if (div & 1)
rd[10].value = 0x78;
else
rd[10].value = 0xf8;
/* 11 */
if (div >= 265)
rd[13].value = 0xf9;
else if (div >= 121)
rd[13].value = 0xfd;
else
rd[13].value = 0xf9;
/* 22 */
if (div < 201)
rd[15].value = 0xd0;
else if (div < 217)
rd[15].value = 0xd3;
else if (div < 233)
rd[15].value = 0xd6;
else if (div < 249)
rd[15].value = 0xd9;
else if (div < 265)
rd[15].value = 0xda;
else
rd[15].value = 0xd0;
/* 05 */
if (div >= 377)
rd[34].value = 0x70;
else if (div >= 265)
rd[34].value = 0x50;
else if (div >= 121)
rd[34].value = 0x30;
else
rd[34].value = 0x10;
/* 1f */
if (mod < 4)
rd[39].value = 0x64;
else if (mod < 6)
rd[39].value = 0x66;
else if (mod < 8)
rd[39].value = 0x67;
else if (mod < 12)
rd[39].value = 0x68;
else if (mod < 14)
rd[39].value = 0x69;
else
rd[39].value = 0x6a;
/* 20 */
if (mod < 4)
rd[40].value = 0x10;
else if (mod < 6)
rd[40].value = 0x11;
else if (mod < 10)
rd[40].value = 0x12;
else if (mod < 12)
rd[40].value = 0x13;
else if (mod < 14)
rd[40].value = 0x14;
else
rd[40].value = 0x15;
for (i = 0; i < sizeof(rd) / sizeof(*rd); i++) {
if (rd[i].read)
continue;
msg.flags = 0;
msg.len = 2;
msg.addr = adap->dev->adapter[0].pll_addr;
msg.buf = &rd[i].reg;
if (i2c_transfer(&adap->dev->i2c_adap, &msg, 1) != 1) {
printk("tuner write failed\n");
return -EIO;
}
}
return 0;
}
static int qt1010_tuner_attach(struct dvb_usb_adapter *adap)
{
adap->pll_addr = 0xc4;
adap->pll_desc = NULL;
adap->fe->ops.tuner_ops.set_params = qt1010_set_params;
return 0;
}
#endif
