017cf01257
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 <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
221 lines
4.9 KiB
C
221 lines
4.9 KiB
C
/*
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* qt1010.h - DVB-T Tuner support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _QT1010_H_
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#define _QT1010_H_
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#define QT1010_W 0
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#define QT1010_R 1
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/* Not actual hw limits. */
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#define QT1010_MIN_STEP 2000000
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#define QT1010_MIN_FREQ 48000000
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static int qt1010_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8 *buf, int buf_len)
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{
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int i;
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int div, mod;
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struct {
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u8 read, reg, value;
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} rd[46] = { { QT1010_W, 0x01, 0x80 },
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{ QT1010_W, 0x02, 0x3f },
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{ QT1010_W, 0x05, 0xff }, /* c */
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{ QT1010_W, 0x06, 0x44 },
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{ QT1010_W, 0x07, 0xff }, /* c */
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{ QT1010_W, 0x08, 0x08 },
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{ QT1010_W, 0x09, 0xff }, /* c */
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{ QT1010_W, 0x0a, 0xff }, /* c */
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{ QT1010_W, 0x0b, 0xff }, /* c */
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{ QT1010_W, 0x0c, 0xe1 },
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{ QT1010_W, 0x1a, 0xff }, /* 10 c */
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{ QT1010_W, 0x1b, 0x00 },
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{ QT1010_W, 0x1c, 0x89 },
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{ QT1010_W, 0x11, 0xff }, /* c */
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{ QT1010_W, 0x12, 0x91 },
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{ QT1010_W, 0x22, 0xff }, /* c */
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{ QT1010_W, 0x1e, 0x00 },
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{ QT1010_W, 0x1e, 0xd0 },
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{ QT1010_R, 0x22, 0xff }, /* c read */
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{ QT1010_W, 0x1e, 0x00 },
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{ QT1010_R, 0x05, 0xff }, /* 20 c read */
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{ QT1010_R, 0x22, 0xff }, /* c read */
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{ QT1010_W, 0x23, 0xd0 },
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{ QT1010_W, 0x1e, 0x00 },
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{ QT1010_W, 0x1e, 0xe0 },
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{ QT1010_R, 0x23, 0xff }, /* c read */
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{ QT1010_W, 0x1e, 0x00 },
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{ QT1010_W, 0x24, 0xd0 },
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{ QT1010_W, 0x1e, 0x00 },
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{ QT1010_W, 0x1e, 0xf0 },
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{ QT1010_R, 0x24, 0xff }, /* 30 c read */
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{ QT1010_W, 0x1e, 0x00 },
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{ QT1010_W, 0x14, 0x7f },
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{ QT1010_W, 0x15, 0x7f },
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{ QT1010_W, 0x05, 0xff }, /* c */
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{ QT1010_W, 0x06, 0x00 },
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{ QT1010_W, 0x15, 0x1f },
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{ QT1010_W, 0x16, 0xff },
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{ QT1010_W, 0x18, 0xff },
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{ QT1010_W, 0x1f, 0xff }, /* c */
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{ QT1010_W, 0x20, 0xff }, /* 40 c */
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{ QT1010_W, 0x21, 0x53 },
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{ QT1010_W, 0x25, 0xbd },
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{ QT1010_W, 0x26, 0x15 },
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{ QT1010_W, 0x02, 0x00 },
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{ QT1010_W, 0x01, 0x00 },
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};
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struct i2c_msg msg;
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struct dvb_usb_device *d = fe->dvb->priv;
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unsigned long freq = params->frequency;
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if (freq % QT1010_MIN_STEP)
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printk("frequency not supported.\n");
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(void) buf;
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(void) buf_len;
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div = (freq - QT1010_MIN_FREQ) / QT1010_MIN_STEP;
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mod = (div + 16 - 9) % 16;
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/* 0x5 */
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if (div >= 377)
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rd[2].value = 0x74;
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else if (div >= 265)
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rd[2].value = 0x54;
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else if (div >= 121)
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rd[2].value = 0x34;
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else
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rd[2].value = 0x14;
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/* 0x7 */
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rd[4].value = (((freq - QT1010_MIN_FREQ) / 1000000) * 9975 + 12960000) / 320000;
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/* 09 */
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if (mod < 4)
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rd[6].value = 0x1d;
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else
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rd[6].value = 0x1c;
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/* 0a */
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if (mod < 2)
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rd[7].value = 0x09;
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else if (mod < 4)
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rd[7].value = 0x08;
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else if (mod < 6)
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rd[7].value = 0x0f;
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else if (mod < 8)
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rd[7].value = 0x0e;
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else if (mod < 10)
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rd[7].value = 0x0d;
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else if (mod < 12)
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rd[7].value = 0x0c;
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else if (mod < 14)
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rd[7].value = 0x0b;
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else
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rd[7].value = 0x0a;
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/* 0b */
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if (div & 1)
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rd[8].value = 0x45;
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else
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rd[8].value = 0x44;
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/* 1a */
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if (div & 1)
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rd[10].value = 0x78;
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else
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rd[10].value = 0xf8;
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/* 11 */
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if (div >= 265)
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rd[13].value = 0xf9;
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else if (div >= 121)
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rd[13].value = 0xfd;
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else
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rd[13].value = 0xf9;
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/* 22 */
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if (div < 201)
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rd[15].value = 0xd0;
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else if (div < 217)
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rd[15].value = 0xd3;
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else if (div < 233)
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rd[15].value = 0xd6;
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else if (div < 249)
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rd[15].value = 0xd9;
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else if (div < 265)
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rd[15].value = 0xda;
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else
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rd[15].value = 0xd0;
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/* 05 */
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if (div >= 377)
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rd[34].value = 0x70;
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else if (div >= 265)
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rd[34].value = 0x50;
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else if (div >= 121)
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rd[34].value = 0x30;
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else
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rd[34].value = 0x10;
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/* 1f */
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if (mod < 4)
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rd[39].value = 0x64;
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else if (mod < 6)
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rd[39].value = 0x66;
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else if (mod < 8)
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rd[39].value = 0x67;
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else if (mod < 12)
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rd[39].value = 0x68;
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else if (mod < 14)
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rd[39].value = 0x69;
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else
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rd[39].value = 0x6a;
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/* 20 */
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if (mod < 4)
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rd[40].value = 0x10;
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else if (mod < 6)
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rd[40].value = 0x11;
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else if (mod < 10)
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rd[40].value = 0x12;
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else if (mod < 12)
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rd[40].value = 0x13;
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else if (mod < 14)
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rd[40].value = 0x14;
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else
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rd[40].value = 0x15;
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for (i = 0; i < sizeof(rd) / sizeof(*rd); i++) {
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if (rd[i].read)
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continue;
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msg.flags = 0;
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msg.len = 2;
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msg.addr = 0xc4;
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msg.buf = &rd[i].reg;
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if (i2c_transfer(&d->i2c_adap, &msg, 1) != 1) {
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printk("tuner write failed\n");
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return -EIO;
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}
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}
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return 0;
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}
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#endif
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