diff options
Diffstat (limited to 'drivers/media/dvb/frontends/qt1010.h')
| -rw-r--r-- | drivers/media/dvb/frontends/qt1010.h | 233 |
1 files changed, 30 insertions, 203 deletions
diff --git a/drivers/media/dvb/frontends/qt1010.h b/drivers/media/dvb/frontends/qt1010.h index 8196985e4e4..3ab4aa045c3 100644 --- a/drivers/media/dvb/frontends/qt1010.h +++ b/drivers/media/dvb/frontends/qt1010.h @@ -1,5 +1,8 @@ /* - * qt1010.h - DVB-T Tuner support + * Driver for Quantek QT1010 silicon tuner + * + * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> + * Aapo Tahkola <aet@rasterburn.org> * * 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 @@ -16,211 +19,35 @@ * 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; +#ifndef QT1010_H +#define QT1010_H - /* 11 */ - if (div >= 265) - rd[13].value = 0xf9; - else if (div >= 121) - rd[13].value = 0xfd; - else - rd[13].value = 0xf9; +#include "dvb_frontend.h" - /* 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; +struct qt1010_config { + u8 i2c_address; +}; - /* 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) +/** + * Attach a qt1010 tuner to the supplied frontend structure. + * + * @param fe frontend to attach to + * @param i2c i2c adapter to use + * @param cfg tuner hw based configuration + * @return fe pointer on success, NULL on failure + */ +#if defined(CONFIG_DVB_TUNER_QT1010) || (defined(CONFIG_DVB_TUNER_QT1010_MODULE) && defined(MODULE)) +extern struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, + struct qt1010_config *cfg); +#else +static inline struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, + struct qt1010_config *cfg) { - adap->pll_addr = 0xc4; - adap->pll_desc = NULL; - adap->fe->ops.tuner_ops.set_params = qt1010_set_params; - - return 0; + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__); + return NULL; } +#endif // CONFIG_DVB_TUNER_QT1010 + #endif |