From 017cf012570c955c3e1ff025802d7cb46fd1d37b Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sat, 23 Sep 2006 20:40:20 -0300 Subject: V4L/DVB (5129): M920x: break out qt1010 tuner code into a separate file qt1010 is a tuner used in some other devices, so this code should be put into a separate file so that it could be reused by other drivers. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/qt1010.h | 221 +++++++++++++++++++++++++++++++++++ 1 file changed, 221 insertions(+) create mode 100644 drivers/media/dvb/frontends/qt1010.h (limited to 'drivers/media/dvb/frontends') diff --git a/drivers/media/dvb/frontends/qt1010.h b/drivers/media/dvb/frontends/qt1010.h new file mode 100644 index 000000000000..e526e3c23265 --- /dev/null +++ b/drivers/media/dvb/frontends/qt1010.h @@ -0,0 +1,221 @@ +/* + * 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, u8 *buf, int buf_len) +{ + 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_device *d = fe->dvb->priv; + unsigned long freq = params->frequency; + + if (freq % QT1010_MIN_STEP) + printk("frequency not supported.\n"); + + (void) buf; + (void) buf_len; + + 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 = 0xc4; + msg.buf = &rd[i].reg; + + if (i2c_transfer(&d->i2c_adap, &msg, 1) != 1) { + printk("tuner write failed\n"); + return -EIO; + } + } + + return 0; +} + +#endif -- cgit v1.2.3