diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda827x.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda827x.c | 512 |
1 files changed, 0 insertions, 512 deletions
diff --git a/drivers/media/dvb/frontends/tda827x.c b/drivers/media/dvb/frontends/tda827x.c deleted file mode 100644 index 256fc4bf500..00000000000 --- a/drivers/media/dvb/frontends/tda827x.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * - * (c) 2005 Hartmut Hackmann - * (c) 2007 Michael Krufky - * - * 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. - */ - -#include <linux/module.h> -#include <linux/dvb/frontend.h> -#include <asm/types.h> - -#include "tda827x.h" - -static int debug = 0; -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG "tda827x: " args); \ - } while (0) - -struct tda827x_priv { - int i2c_addr; - struct i2c_adapter *i2c_adap; - struct tda827x_config *cfg; - u32 frequency; - u32 bandwidth; -}; - -struct tda827x_data { - u32 lomax; - u8 spd; - u8 bs; - u8 bp; - u8 cp; - u8 gc3; - u8 div1p5; -}; - -static const struct tda827x_data tda827x_dvbt[] = { - { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, - { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, - { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, - { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, - { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, - { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, - { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, - { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, - { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, - { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, - { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, - { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, - { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, - { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, - { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, - { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, - { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, - { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0} -}; - -static int tda827xo_set_params(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) -{ - struct tda827x_priv *priv = fe->tuner_priv; - u8 buf[14]; - - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, - .buf = buf, .len = sizeof(buf) }; - int i, tuner_freq, if_freq; - u32 N; - - dprintk("%s:\n", __FUNCTION__); - switch (params->u.ofdm.bandwidth) { - case BANDWIDTH_6_MHZ: - if_freq = 4000000; - break; - case BANDWIDTH_7_MHZ: - if_freq = 4500000; - break; - default: /* 8 MHz or Auto */ - if_freq = 5000000; - break; - } - tuner_freq = params->frequency + if_freq; - - i = 0; - while (tda827x_dvbt[i].lomax < tuner_freq) { - if(tda827x_dvbt[i + 1].lomax == 0) - break; - i++; - } - - N = ((tuner_freq + 125000) / 250000) << (tda827x_dvbt[i].spd + 2); - buf[0] = 0; - buf[1] = (N>>8) | 0x40; - buf[2] = N & 0xff; - buf[3] = 0; - buf[4] = 0x52; - buf[5] = (tda827x_dvbt[i].spd << 6) + (tda827x_dvbt[i].div1p5 << 5) + - (tda827x_dvbt[i].bs << 3) + tda827x_dvbt[i].bp; - buf[6] = (tda827x_dvbt[i].gc3 << 4) + 0x8f; - buf[7] = 0xbf; - buf[8] = 0x2a; - buf[9] = 0x05; - buf[10] = 0xff; - buf[11] = 0x00; - buf[12] = 0x00; - buf[13] = 0x40; - - msg.len = 14; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) { - printk("%s: could not write to tuner at addr: 0x%02x\n", - __FUNCTION__, priv->i2c_addr << 1); - return -EIO; - } - msleep(500); - /* correct CP value */ - buf[0] = 0x30; - buf[1] = 0x50 + tda827x_dvbt[i].cp; - msg.len = 2; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - priv->frequency = tuner_freq - if_freq; // FIXME - priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; - - return 0; -} - -static int tda827xo_sleep(struct dvb_frontend *fe) -{ - struct tda827x_priv *priv = fe->tuner_priv; - static u8 buf[] = { 0x30, 0xd0 }; - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, - .buf = buf, .len = sizeof(buf) }; - - dprintk("%s:\n", __FUNCTION__); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - if (priv->cfg && priv->cfg->sleep) - priv->cfg->sleep(fe); - - return 0; -} - -/* ------------------------------------------------------------------ */ - -struct tda827xa_data { - u32 lomax; - u8 svco; - u8 spd; - u8 scr; - u8 sbs; - u8 gc3; -}; - -static const struct tda827xa_data tda827xa_dvbt[] = { - { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1}, - { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, - { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, - { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, - { .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 = 1}, - { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, - { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, - { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, - { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, - { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, - { .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 = 550000000, .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_set_params(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) -{ - struct tda827x_priv *priv = fe->tuner_priv; - u8 buf[11]; - - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, - .buf = buf, .len = sizeof(buf) }; - - int i, tuner_freq, if_freq; - u32 N; - - dprintk("%s:\n", __FUNCTION__); - if (priv->cfg && priv->cfg->lna_gain) - priv->cfg->lna_gain(fe, 1); - msleep(20); - - switch (params->u.ofdm.bandwidth) { - case BANDWIDTH_6_MHZ: - if_freq = 4000000; - break; - case BANDWIDTH_7_MHZ: - if_freq = 4500000; - break; - default: /* 8 MHz or Auto */ - if_freq = 5000000; - break; - } - tuner_freq = params->frequency + if_freq; - - i = 0; - while (tda827xa_dvbt[i].lomax < tuner_freq) { - if(tda827xa_dvbt[i + 1].lomax == 0) - break; - i++; - } - - N = ((tuner_freq + 31250) / 62500) << tda827xa_dvbt[i].spd; - buf[0] = 0; // subaddress - buf[1] = N >> 8; - buf[2] = N & 0xff; - buf[3] = 0; - buf[4] = 0x16; - buf[5] = (tda827xa_dvbt[i].spd << 5) + (tda827xa_dvbt[i].svco << 3) + - tda827xa_dvbt[i].sbs; - buf[6] = 0x4b + (tda827xa_dvbt[i].gc3 << 4); - buf[7] = 0x1c; - buf[8] = 0x06; - buf[9] = 0x24; - buf[10] = 0x00; - msg.len = 11; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) { - printk("%s: could not write to tuner at addr: 0x%02x\n", - __FUNCTION__, priv->i2c_addr << 1); - return -EIO; - } - buf[0] = 0x90; - buf[1] = 0xff; - buf[2] = 0x60; - buf[3] = 0x00; - buf[4] = 0x59; // lpsel, for 6MHz + 2 - msg.len = 5; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - buf[0] = 0xa0; - buf[1] = 0x40; - msg.len = 2; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - msleep(11); - msg.flags = I2C_M_RD; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - msg.flags = 0; - - buf[1] >>= 4; - dprintk("tda8275a AGC2 gain is: %d\n", buf[1]); - if ((buf[1]) < 2) { - if (priv->cfg && priv->cfg->lna_gain) - priv->cfg->lna_gain(fe, 0); - buf[0] = 0x60; - buf[1] = 0x0c; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - } - - buf[0] = 0xc0; - buf[1] = 0x99; // lpsel, for 6MHz + 2 - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - buf[0] = 0x60; - buf[1] = 0x3c; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - /* correct CP value */ - buf[0] = 0x30; - buf[1] = 0x10 + tda827xa_dvbt[i].scr; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - msleep(163); - buf[0] = 0xc0; - buf[1] = 0x39; // lpsel, for 6MHz + 2 - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - msleep(3); - /* freeze AGC1 */ - buf[0] = 0x50; - buf[1] = 0x4f + (tda827xa_dvbt[i].gc3 << 4); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(priv->i2c_adap, &msg, 1); - - priv->frequency = tuner_freq - if_freq; // FIXME - priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; - - return 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", __FUNCTION__); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - i2c_transfer(priv->i2c_adap, &msg, 1); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - if (priv->cfg && priv->cfg->sleep) - priv->cfg->sleep(fe); - - return 0; -} - -static int tda827x_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - -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", __FUNCTION__); - 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 struct dvb_tuner_ops tda827xo_tuner_ops = { - .info = { - .name = "Philips TDA827X", - .frequency_min = 55000000, - .frequency_max = 860000000, - .frequency_step = 250000 - }, - .release = tda827x_release, - .init = tda827x_initial_init, - .sleep = tda827x_initial_sleep, - .set_params = tda827xo_set_params, - .get_frequency = tda827x_get_frequency, - .get_bandwidth = tda827x_get_bandwidth, -}; - -static struct dvb_tuner_ops tda827xa_tuner_ops = { - .info = { - .name = "Philips TDA827XA", - .frequency_min = 44000000, - .frequency_max = 906000000, - .frequency_step = 62500 - }, - .release = tda827x_release, - .init = tda827x_init, - .sleep = tda827xa_sleep, - .set_params = tda827xa_set_params, - .get_frequency = tda827x_get_frequency, - .get_bandwidth = tda827x_get_bandwidth, -}; - -static int tda827x_probe_version(struct dvb_frontend *fe) -{ u8 data; - struct tda827x_priv *priv = fe->tuner_priv; - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD, - .buf = &data, .len = 1 }; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) { - printk("%s: could not read from tuner at addr: 0x%02x\n", - __FUNCTION__, msg.addr << 1); - return -EIO; - } - if ((data & 0x3c) == 0) { - dprintk("tda827x tuner found\n"); - fe->ops.tuner_ops.init = tda827x_init; - fe->ops.tuner_ops.sleep = tda827xo_sleep; - } else { - dprintk("tda827xa tuner found\n"); - memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops)); - } - 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", __FUNCTION__); - 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; - - return fe; -} - -EXPORT_SYMBOL(tda827x_attach); - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("DVB TDA827x driver"); -MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>"); -MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); -MODULE_LICENSE("GPL"); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |