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895 lines
25 KiB
895 lines
25 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* |
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* (c) 2005 Hartmut Hackmann |
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* (c) 2007 Michael Krufky |
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*/ |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <asm/types.h> |
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#include <linux/dvb/frontend.h> |
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#include <linux/videodev2.h> |
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#include "tda827x.h" |
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static int debug; |
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module_param(debug, int, 0644); |
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MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); |
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#define dprintk(args...) \ |
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do { \ |
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if (debug) printk(KERN_DEBUG "tda827x: " args); \ |
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} while (0) |
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struct tda827x_priv { |
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int i2c_addr; |
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struct i2c_adapter *i2c_adap; |
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struct tda827x_config *cfg; |
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unsigned int sgIF; |
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unsigned char lpsel; |
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u32 frequency; |
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u32 bandwidth; |
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}; |
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static void tda827x_set_std(struct dvb_frontend *fe, |
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struct analog_parameters *params) |
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{ |
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struct tda827x_priv *priv = fe->tuner_priv; |
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char *mode; |
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priv->lpsel = 0; |
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if (params->std & V4L2_STD_MN) { |
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priv->sgIF = 92; |
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priv->lpsel = 1; |
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mode = "MN"; |
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} else if (params->std & V4L2_STD_B) { |
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priv->sgIF = 108; |
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mode = "B"; |
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} else if (params->std & V4L2_STD_GH) { |
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priv->sgIF = 124; |
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mode = "GH"; |
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} else if (params->std & V4L2_STD_PAL_I) { |
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priv->sgIF = 124; |
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mode = "I"; |
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} else if (params->std & V4L2_STD_DK) { |
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priv->sgIF = 124; |
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mode = "DK"; |
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} else if (params->std & V4L2_STD_SECAM_L) { |
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priv->sgIF = 124; |
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mode = "L"; |
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} else if (params->std & V4L2_STD_SECAM_LC) { |
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priv->sgIF = 20; |
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mode = "LC"; |
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} else { |
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priv->sgIF = 124; |
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mode = "xx"; |
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} |
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if (params->mode == V4L2_TUNER_RADIO) { |
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priv->sgIF = 88; /* if frequency is 5.5 MHz */ |
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dprintk("setting tda827x to radio FM\n"); |
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} else |
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dprintk("setting tda827x to system %s\n", mode); |
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} |
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/* ------------------------------------------------------------------ */ |
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struct tda827x_data { |
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u32 lomax; |
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u8 spd; |
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u8 bs; |
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u8 bp; |
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u8 cp; |
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u8 gc3; |
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u8 div1p5; |
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}; |
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static const struct tda827x_data tda827x_table[] = { |
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{ .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, |
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{ .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, |
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{ .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, |
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{ .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, |
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{ .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
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{ .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
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{ .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
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{ .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
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{ .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
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{ .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
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{ .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
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{ .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
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{ .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
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{ .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
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{ .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, |
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{ .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
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{ .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, |
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{ .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0} |
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}; |
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static int tuner_transfer(struct dvb_frontend *fe, |
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struct i2c_msg *msg, |
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const int size) |
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{ |
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int rc; |
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struct tda827x_priv *priv = fe->tuner_priv; |
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if (fe->ops.i2c_gate_ctrl) |
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fe->ops.i2c_gate_ctrl(fe, 1); |
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rc = i2c_transfer(priv->i2c_adap, msg, size); |
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if (fe->ops.i2c_gate_ctrl) |
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fe->ops.i2c_gate_ctrl(fe, 0); |
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if (rc >= 0 && rc != size) |
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return -EIO; |
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return rc; |
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} |
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static int tda827xo_set_params(struct dvb_frontend *fe) |
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{ |
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struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
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struct tda827x_priv *priv = fe->tuner_priv; |
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u8 buf[14]; |
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int rc; |
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
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.buf = buf, .len = sizeof(buf) }; |
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int i, tuner_freq, if_freq; |
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u32 N; |
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dprintk("%s:\n", __func__); |
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if (c->bandwidth_hz == 0) { |
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if_freq = 5000000; |
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} else if (c->bandwidth_hz <= 6000000) { |
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if_freq = 4000000; |
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} else if (c->bandwidth_hz <= 7000000) { |
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if_freq = 4500000; |
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} else { /* 8 MHz */ |
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if_freq = 5000000; |
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} |
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tuner_freq = c->frequency; |
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i = 0; |
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while (tda827x_table[i].lomax < tuner_freq) { |
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if (tda827x_table[i + 1].lomax == 0) |
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break; |
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i++; |
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} |
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tuner_freq += if_freq; |
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N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2); |
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buf[0] = 0; |
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buf[1] = (N>>8) | 0x40; |
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buf[2] = N & 0xff; |
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buf[3] = 0; |
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buf[4] = 0x52; |
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buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) + |
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(tda827x_table[i].bs << 3) + |
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tda827x_table[i].bp; |
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buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f; |
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buf[7] = 0xbf; |
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buf[8] = 0x2a; |
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buf[9] = 0x05; |
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buf[10] = 0xff; |
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buf[11] = 0x00; |
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buf[12] = 0x00; |
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buf[13] = 0x40; |
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msg.len = 14; |
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rc = tuner_transfer(fe, &msg, 1); |
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if (rc < 0) |
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goto err; |
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msleep(500); |
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/* correct CP value */ |
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buf[0] = 0x30; |
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buf[1] = 0x50 + tda827x_table[i].cp; |
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msg.len = 2; |
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rc = tuner_transfer(fe, &msg, 1); |
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if (rc < 0) |
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goto err; |
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priv->frequency = c->frequency; |
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priv->bandwidth = c->bandwidth_hz; |
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return 0; |
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err: |
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printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n", |
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__func__, priv->i2c_addr << 1); |
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return rc; |
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} |
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static int tda827xo_sleep(struct dvb_frontend *fe) |
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{ |
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struct tda827x_priv *priv = fe->tuner_priv; |
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static u8 buf[] = { 0x30, 0xd0 }; |
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
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.buf = buf, .len = sizeof(buf) }; |
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dprintk("%s:\n", __func__); |
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tuner_transfer(fe, &msg, 1); |
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if (priv->cfg && priv->cfg->sleep) |
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priv->cfg->sleep(fe); |
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return 0; |
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} |
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/* ------------------------------------------------------------------ */ |
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static int tda827xo_set_analog_params(struct dvb_frontend *fe, |
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struct analog_parameters *params) |
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{ |
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unsigned char tuner_reg[8]; |
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unsigned char reg2[2]; |
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u32 N; |
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int i; |
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struct tda827x_priv *priv = fe->tuner_priv; |
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 }; |
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unsigned int freq = params->frequency; |
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tda827x_set_std(fe, params); |
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if (params->mode == V4L2_TUNER_RADIO) |
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freq = freq / 1000; |
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N = freq + priv->sgIF; |
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i = 0; |
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while (tda827x_table[i].lomax < N * 62500) { |
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if (tda827x_table[i + 1].lomax == 0) |
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break; |
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i++; |
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} |
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N = N << tda827x_table[i].spd; |
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tuner_reg[0] = 0; |
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tuner_reg[1] = (unsigned char)(N>>8); |
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tuner_reg[2] = (unsigned char) N; |
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tuner_reg[3] = 0x40; |
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tuner_reg[4] = 0x52 + (priv->lpsel << 5); |
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tuner_reg[5] = (tda827x_table[i].spd << 6) + |
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(tda827x_table[i].div1p5 << 5) + |
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(tda827x_table[i].bs << 3) + tda827x_table[i].bp; |
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tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4); |
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tuner_reg[7] = 0x8f; |
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msg.buf = tuner_reg; |
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msg.len = 8; |
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tuner_transfer(fe, &msg, 1); |
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msg.buf = reg2; |
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msg.len = 2; |
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reg2[0] = 0x80; |
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reg2[1] = 0; |
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tuner_transfer(fe, &msg, 1); |
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reg2[0] = 0x60; |
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reg2[1] = 0xbf; |
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tuner_transfer(fe, &msg, 1); |
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reg2[0] = 0x30; |
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reg2[1] = tuner_reg[4] + 0x80; |
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tuner_transfer(fe, &msg, 1); |
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msleep(1); |
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reg2[0] = 0x30; |
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reg2[1] = tuner_reg[4] + 4; |
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tuner_transfer(fe, &msg, 1); |
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msleep(1); |
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reg2[0] = 0x30; |
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reg2[1] = tuner_reg[4]; |
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tuner_transfer(fe, &msg, 1); |
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msleep(550); |
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reg2[0] = 0x30; |
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reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp; |
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tuner_transfer(fe, &msg, 1); |
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reg2[0] = 0x60; |
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reg2[1] = 0x3f; |
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tuner_transfer(fe, &msg, 1); |
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reg2[0] = 0x80; |
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reg2[1] = 0x08; /* Vsync en */ |
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tuner_transfer(fe, &msg, 1); |
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priv->frequency = params->frequency; |
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return 0; |
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} |
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static void tda827xo_agcf(struct dvb_frontend *fe) |
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{ |
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struct tda827x_priv *priv = fe->tuner_priv; |
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unsigned char data[] = { 0x80, 0x0c }; |
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
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.buf = data, .len = 2}; |
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tuner_transfer(fe, &msg, 1); |
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} |
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/* ------------------------------------------------------------------ */ |
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struct tda827xa_data { |
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u32 lomax; |
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u8 svco; |
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u8 spd; |
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u8 scr; |
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u8 sbs; |
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u8 gc3; |
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}; |
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static struct tda827xa_data tda827xa_dvbt[] = { |
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{ .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1}, |
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{ .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, |
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{ .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, |
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{ .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, |
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{ .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, |
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{ .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, |
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{ .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, |
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{ .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, |
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{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0}, |
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{ .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} |
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}; |
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static struct tda827xa_data tda827xa_dvbc[] = { |
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{ .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, |
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{ .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, |
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{ .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, |
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{ .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, |
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{ .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, |
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{ .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, |
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{ .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1}, |
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{ .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3}, |
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{ .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3}, |
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{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1}, |
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{ .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3}, |
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{ .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3}, |
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{ .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1}, |
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{ .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, |
|
{ .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} |
|
}; |
|
|
|
static struct tda827xa_data tda827xa_analog[] = { |
|
{ .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3}, |
|
{ .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, |
|
{ .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, |
|
{ .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, |
|
{ .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1}, |
|
{ .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
|
{ .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
|
{ .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
|
{ .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
|
{ .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, |
|
{ .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3}, |
|
{ .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3}, |
|
{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, |
|
{ .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, |
|
{ .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, |
|
{ .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
|
{ .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, |
|
{ .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
|
{ .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0}, |
|
{ .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} |
|
}; |
|
|
|
static int tda827xa_sleep(struct dvb_frontend *fe) |
|
{ |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
static u8 buf[] = { 0x30, 0x90 }; |
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
|
.buf = buf, .len = sizeof(buf) }; |
|
|
|
dprintk("%s:\n", __func__); |
|
|
|
tuner_transfer(fe, &msg, 1); |
|
|
|
if (priv->cfg && priv->cfg->sleep) |
|
priv->cfg->sleep(fe); |
|
|
|
return 0; |
|
} |
|
|
|
static void tda827xa_lna_gain(struct dvb_frontend *fe, int high, |
|
struct analog_parameters *params) |
|
{ |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
unsigned char buf[] = {0x22, 0x01}; |
|
int arg; |
|
int gp_func; |
|
struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) }; |
|
|
|
if (NULL == priv->cfg) { |
|
dprintk("tda827x_config not defined, cannot set LNA gain!\n"); |
|
return; |
|
} |
|
msg.addr = priv->cfg->switch_addr; |
|
if (priv->cfg->config) { |
|
if (high) |
|
dprintk("setting LNA to high gain\n"); |
|
else |
|
dprintk("setting LNA to low gain\n"); |
|
} |
|
switch (priv->cfg->config) { |
|
case TDA8290_LNA_OFF: /* no LNA */ |
|
break; |
|
case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */ |
|
case TDA8290_LNA_GP0_HIGH_OFF: |
|
if (params == NULL) { |
|
gp_func = 0; |
|
arg = 0; |
|
} else { |
|
/* turn Vsync on */ |
|
gp_func = 1; |
|
if (params->std & V4L2_STD_MN) |
|
arg = 1; |
|
else |
|
arg = 0; |
|
} |
|
if (fe->callback) |
|
fe->callback(priv->i2c_adap->algo_data, |
|
DVB_FRONTEND_COMPONENT_TUNER, |
|
gp_func, arg); |
|
buf[1] = high ? 0 : 1; |
|
if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF) |
|
buf[1] = high ? 1 : 0; |
|
tuner_transfer(fe, &msg, 1); |
|
break; |
|
case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */ |
|
if (fe->callback) |
|
fe->callback(priv->i2c_adap->algo_data, |
|
DVB_FRONTEND_COMPONENT_TUNER, 0, high); |
|
break; |
|
} |
|
} |
|
|
|
static int tda827xa_set_params(struct dvb_frontend *fe) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
struct tda827xa_data *frequency_map = tda827xa_dvbt; |
|
u8 buf[11]; |
|
|
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
|
.buf = buf, .len = sizeof(buf) }; |
|
|
|
int i, tuner_freq, if_freq, rc; |
|
u32 N; |
|
|
|
dprintk("%s:\n", __func__); |
|
|
|
tda827xa_lna_gain(fe, 1, NULL); |
|
msleep(20); |
|
|
|
if (c->bandwidth_hz == 0) { |
|
if_freq = 5000000; |
|
} else if (c->bandwidth_hz <= 6000000) { |
|
if_freq = 4000000; |
|
} else if (c->bandwidth_hz <= 7000000) { |
|
if_freq = 4500000; |
|
} else { /* 8 MHz */ |
|
if_freq = 5000000; |
|
} |
|
tuner_freq = c->frequency; |
|
|
|
switch (c->delivery_system) { |
|
case SYS_DVBC_ANNEX_A: |
|
case SYS_DVBC_ANNEX_C: |
|
dprintk("%s select tda827xa_dvbc\n", __func__); |
|
frequency_map = tda827xa_dvbc; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
i = 0; |
|
while (frequency_map[i].lomax < tuner_freq) { |
|
if (frequency_map[i + 1].lomax == 0) |
|
break; |
|
i++; |
|
} |
|
|
|
tuner_freq += if_freq; |
|
|
|
N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd; |
|
buf[0] = 0; // subaddress |
|
buf[1] = N >> 8; |
|
buf[2] = N & 0xff; |
|
buf[3] = 0; |
|
buf[4] = 0x16; |
|
buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) + |
|
frequency_map[i].sbs; |
|
buf[6] = 0x4b + (frequency_map[i].gc3 << 4); |
|
buf[7] = 0x1c; |
|
buf[8] = 0x06; |
|
buf[9] = 0x24; |
|
buf[10] = 0x00; |
|
msg.len = 11; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
buf[0] = 0x90; |
|
buf[1] = 0xff; |
|
buf[2] = 0x60; |
|
buf[3] = 0x00; |
|
buf[4] = 0x59; // lpsel, for 6MHz + 2 |
|
msg.len = 5; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
buf[0] = 0xa0; |
|
buf[1] = 0x40; |
|
msg.len = 2; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
msleep(11); |
|
msg.flags = I2C_M_RD; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
msg.flags = 0; |
|
|
|
buf[1] >>= 4; |
|
dprintk("tda8275a AGC2 gain is: %d\n", buf[1]); |
|
if ((buf[1]) < 2) { |
|
tda827xa_lna_gain(fe, 0, NULL); |
|
buf[0] = 0x60; |
|
buf[1] = 0x0c; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
} |
|
|
|
buf[0] = 0xc0; |
|
buf[1] = 0x99; // lpsel, for 6MHz + 2 |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
buf[0] = 0x60; |
|
buf[1] = 0x3c; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
/* correct CP value */ |
|
buf[0] = 0x30; |
|
buf[1] = 0x10 + frequency_map[i].scr; |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
msleep(163); |
|
buf[0] = 0xc0; |
|
buf[1] = 0x39; // lpsel, for 6MHz + 2 |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
msleep(3); |
|
/* freeze AGC1 */ |
|
buf[0] = 0x50; |
|
buf[1] = 0x4f + (frequency_map[i].gc3 << 4); |
|
rc = tuner_transfer(fe, &msg, 1); |
|
if (rc < 0) |
|
goto err; |
|
|
|
priv->frequency = c->frequency; |
|
priv->bandwidth = c->bandwidth_hz; |
|
|
|
return 0; |
|
|
|
err: |
|
printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n", |
|
__func__, priv->i2c_addr << 1); |
|
return rc; |
|
} |
|
|
|
|
|
static int tda827xa_set_analog_params(struct dvb_frontend *fe, |
|
struct analog_parameters *params) |
|
{ |
|
unsigned char tuner_reg[11]; |
|
u32 N; |
|
int i; |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
|
.buf = tuner_reg, .len = sizeof(tuner_reg) }; |
|
unsigned int freq = params->frequency; |
|
|
|
tda827x_set_std(fe, params); |
|
|
|
tda827xa_lna_gain(fe, 1, params); |
|
msleep(10); |
|
|
|
if (params->mode == V4L2_TUNER_RADIO) |
|
freq = freq / 1000; |
|
|
|
N = freq + priv->sgIF; |
|
|
|
i = 0; |
|
while (tda827xa_analog[i].lomax < N * 62500) { |
|
if (tda827xa_analog[i + 1].lomax == 0) |
|
break; |
|
i++; |
|
} |
|
|
|
N = N << tda827xa_analog[i].spd; |
|
|
|
tuner_reg[0] = 0; |
|
tuner_reg[1] = (unsigned char)(N>>8); |
|
tuner_reg[2] = (unsigned char) N; |
|
tuner_reg[3] = 0; |
|
tuner_reg[4] = 0x16; |
|
tuner_reg[5] = (tda827xa_analog[i].spd << 5) + |
|
(tda827xa_analog[i].svco << 3) + |
|
tda827xa_analog[i].sbs; |
|
tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4); |
|
tuner_reg[7] = 0x1c; |
|
tuner_reg[8] = 4; |
|
tuner_reg[9] = 0x20; |
|
tuner_reg[10] = 0x00; |
|
msg.len = 11; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
tuner_reg[0] = 0x90; |
|
tuner_reg[1] = 0xff; |
|
tuner_reg[2] = 0xe0; |
|
tuner_reg[3] = 0; |
|
tuner_reg[4] = 0x99 + (priv->lpsel << 1); |
|
msg.len = 5; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
tuner_reg[0] = 0xa0; |
|
tuner_reg[1] = 0xc0; |
|
msg.len = 2; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
tuner_reg[0] = 0x30; |
|
tuner_reg[1] = 0x10 + tda827xa_analog[i].scr; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
msg.flags = I2C_M_RD; |
|
tuner_transfer(fe, &msg, 1); |
|
msg.flags = 0; |
|
tuner_reg[1] >>= 4; |
|
dprintk("AGC2 gain is: %d\n", tuner_reg[1]); |
|
if (tuner_reg[1] < 1) |
|
tda827xa_lna_gain(fe, 0, params); |
|
|
|
msleep(100); |
|
tuner_reg[0] = 0x60; |
|
tuner_reg[1] = 0x3c; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
msleep(163); |
|
tuner_reg[0] = 0x50; |
|
tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4); |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
tuner_reg[0] = 0x80; |
|
tuner_reg[1] = 0x28; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
tuner_reg[0] = 0xb0; |
|
tuner_reg[1] = 0x01; |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
tuner_reg[0] = 0xc0; |
|
tuner_reg[1] = 0x19 + (priv->lpsel << 1); |
|
tuner_transfer(fe, &msg, 1); |
|
|
|
priv->frequency = params->frequency; |
|
|
|
return 0; |
|
} |
|
|
|
static void tda827xa_agcf(struct dvb_frontend *fe) |
|
{ |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
unsigned char data[] = {0x80, 0x2c}; |
|
struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0, |
|
.buf = data, .len = 2}; |
|
tuner_transfer(fe, &msg, 1); |
|
} |
|
|
|
/* ------------------------------------------------------------------ */ |
|
|
|
static void tda827x_release(struct dvb_frontend *fe) |
|
{ |
|
kfree(fe->tuner_priv); |
|
fe->tuner_priv = NULL; |
|
} |
|
|
|
static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
|
{ |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
*frequency = priv->frequency; |
|
return 0; |
|
} |
|
|
|
static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) |
|
{ |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
*bandwidth = priv->bandwidth; |
|
return 0; |
|
} |
|
|
|
static int tda827x_init(struct dvb_frontend *fe) |
|
{ |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
dprintk("%s:\n", __func__); |
|
if (priv->cfg && priv->cfg->init) |
|
priv->cfg->init(fe); |
|
|
|
return 0; |
|
} |
|
|
|
static int tda827x_probe_version(struct dvb_frontend *fe); |
|
|
|
static int tda827x_initial_init(struct dvb_frontend *fe) |
|
{ |
|
int ret; |
|
ret = tda827x_probe_version(fe); |
|
if (ret) |
|
return ret; |
|
return fe->ops.tuner_ops.init(fe); |
|
} |
|
|
|
static int tda827x_initial_sleep(struct dvb_frontend *fe) |
|
{ |
|
int ret; |
|
ret = tda827x_probe_version(fe); |
|
if (ret) |
|
return ret; |
|
return fe->ops.tuner_ops.sleep(fe); |
|
} |
|
|
|
static const struct dvb_tuner_ops tda827xo_tuner_ops = { |
|
.info = { |
|
.name = "Philips TDA827X", |
|
.frequency_min_hz = 55 * MHz, |
|
.frequency_max_hz = 860 * MHz, |
|
.frequency_step_hz = 250 * kHz |
|
}, |
|
.release = tda827x_release, |
|
.init = tda827x_initial_init, |
|
.sleep = tda827x_initial_sleep, |
|
.set_params = tda827xo_set_params, |
|
.set_analog_params = tda827xo_set_analog_params, |
|
.get_frequency = tda827x_get_frequency, |
|
.get_bandwidth = tda827x_get_bandwidth, |
|
}; |
|
|
|
static const struct dvb_tuner_ops tda827xa_tuner_ops = { |
|
.info = { |
|
.name = "Philips TDA827XA", |
|
.frequency_min_hz = 44 * MHz, |
|
.frequency_max_hz = 906 * MHz, |
|
.frequency_step_hz = 62500 |
|
}, |
|
.release = tda827x_release, |
|
.init = tda827x_init, |
|
.sleep = tda827xa_sleep, |
|
.set_params = tda827xa_set_params, |
|
.set_analog_params = tda827xa_set_analog_params, |
|
.get_frequency = tda827x_get_frequency, |
|
.get_bandwidth = tda827x_get_bandwidth, |
|
}; |
|
|
|
static int tda827x_probe_version(struct dvb_frontend *fe) |
|
{ |
|
u8 data; |
|
int rc; |
|
struct tda827x_priv *priv = fe->tuner_priv; |
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD, |
|
.buf = &data, .len = 1 }; |
|
|
|
rc = tuner_transfer(fe, &msg, 1); |
|
|
|
if (rc < 0) { |
|
printk("%s: could not read from tuner at addr: 0x%02x\n", |
|
__func__, msg.addr << 1); |
|
return rc; |
|
} |
|
if ((data & 0x3c) == 0) { |
|
dprintk("tda827x tuner found\n"); |
|
fe->ops.tuner_ops.init = tda827x_init; |
|
fe->ops.tuner_ops.sleep = tda827xo_sleep; |
|
if (priv->cfg) |
|
priv->cfg->agcf = tda827xo_agcf; |
|
} else { |
|
dprintk("tda827xa tuner found\n"); |
|
memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops)); |
|
if (priv->cfg) |
|
priv->cfg->agcf = tda827xa_agcf; |
|
} |
|
return 0; |
|
} |
|
|
|
struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr, |
|
struct i2c_adapter *i2c, |
|
struct tda827x_config *cfg) |
|
{ |
|
struct tda827x_priv *priv = NULL; |
|
|
|
dprintk("%s:\n", __func__); |
|
priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL); |
|
if (priv == NULL) |
|
return NULL; |
|
|
|
priv->i2c_addr = addr; |
|
priv->i2c_adap = i2c; |
|
priv->cfg = cfg; |
|
memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops)); |
|
fe->tuner_priv = priv; |
|
|
|
dprintk("type set to %s\n", fe->ops.tuner_ops.info.name); |
|
|
|
return fe; |
|
} |
|
EXPORT_SYMBOL_GPL(tda827x_attach); |
|
|
|
MODULE_DESCRIPTION("DVB TDA827x driver"); |
|
MODULE_AUTHOR("Hartmut Hackmann <[email protected]>"); |
|
MODULE_AUTHOR("Michael Krufky <[email protected]>"); |
|
MODULE_LICENSE("GPL");
|
|
|