diff options
Diffstat (limited to 'drivers/media/video/tda8290.c')
| -rw-r--r-- | drivers/media/video/tda8290.c | 806 |
1 files changed, 0 insertions, 806 deletions
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c deleted file mode 100644 index 55bc89a6f069..000000000000 --- a/drivers/media/video/tda8290.c +++ /dev/null @@ -1,806 +0,0 @@ -/* - - i2c tv tuner chip device driver - controls the philips tda8290+75 tuner chip combo. - - 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. - - This "tda8290" module was split apart from the original "tuner" module. -*/ - -#include <linux/i2c.h> -#include <linux/delay.h> -#include <linux/videodev.h> -#include "tuner-i2c.h" -#include "tda8290.h" -#include "tda827x.h" -#include "tda18271.h" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "enable verbose debug messages"); - -#define PREFIX "tda8290" - -/* ---------------------------------------------------------------------- */ - -struct tda8290_priv { - struct tuner_i2c_props i2c_props; - - unsigned char tda8290_easy_mode; - - unsigned char tda827x_addr; - - unsigned char ver; -#define TDA8290 1 -#define TDA8295 2 -#define TDA8275 4 -#define TDA8275A 8 -#define TDA18271 16 - - struct tda827x_config cfg; -}; - -/*---------------------------------------------------------------------*/ - -static int tda8290_i2c_bridge(struct dvb_frontend *fe, int close) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char enable[2] = { 0x21, 0xC0 }; - unsigned char disable[2] = { 0x21, 0x00 }; - unsigned char *msg; - - if (close) { - msg = enable; - tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); - /* let the bridge stabilize */ - msleep(20); - } else { - msg = disable; - tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); - } - - return 0; -} - -static int tda8295_i2c_bridge(struct dvb_frontend *fe, int close) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char enable[2] = { 0x45, 0xc1 }; - unsigned char disable[2] = { 0x46, 0x00 }; - unsigned char buf[3] = { 0x45, 0x01, 0x00 }; - unsigned char *msg; - - if (close) { - msg = enable; - tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); - /* let the bridge stabilize */ - msleep(20); - } else { - msg = disable; - tuner_i2c_xfer_send(&priv->i2c_props, msg, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &msg[1], 1); - - buf[2] = msg[1]; - buf[2] &= ~0x04; - tuner_i2c_xfer_send(&priv->i2c_props, buf, 3); - msleep(5); - - msg[1] |= 0x04; - tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); - } - - return 0; -} - -/*---------------------------------------------------------------------*/ - -static void set_audio(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - char* mode; - - if (params->std & V4L2_STD_MN) { - priv->tda8290_easy_mode = 0x01; - mode = "MN"; - } else if (params->std & V4L2_STD_B) { - priv->tda8290_easy_mode = 0x02; - mode = "B"; - } else if (params->std & V4L2_STD_GH) { - priv->tda8290_easy_mode = 0x04; - mode = "GH"; - } else if (params->std & V4L2_STD_PAL_I) { - priv->tda8290_easy_mode = 0x08; - mode = "I"; - } else if (params->std & V4L2_STD_DK) { - priv->tda8290_easy_mode = 0x10; - mode = "DK"; - } else if (params->std & V4L2_STD_SECAM_L) { - priv->tda8290_easy_mode = 0x20; - mode = "L"; - } else if (params->std & V4L2_STD_SECAM_LC) { - priv->tda8290_easy_mode = 0x40; - mode = "LC"; - } else { - priv->tda8290_easy_mode = 0x10; - mode = "xx"; - } - - tuner_dbg("setting tda829x to system %s\n", mode); -} - -static void tda8290_set_params(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char soft_reset[] = { 0x00, 0x00 }; - unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode }; - unsigned char expert_mode[] = { 0x01, 0x80 }; - unsigned char agc_out_on[] = { 0x02, 0x00 }; - unsigned char gainset_off[] = { 0x28, 0x14 }; - unsigned char if_agc_spd[] = { 0x0f, 0x88 }; - unsigned char adc_head_6[] = { 0x05, 0x04 }; - unsigned char adc_head_9[] = { 0x05, 0x02 }; - unsigned char adc_head_12[] = { 0x05, 0x01 }; - unsigned char pll_bw_nom[] = { 0x0d, 0x47 }; - unsigned char pll_bw_low[] = { 0x0d, 0x27 }; - unsigned char gainset_2[] = { 0x28, 0x64 }; - unsigned char agc_rst_on[] = { 0x0e, 0x0b }; - unsigned char agc_rst_off[] = { 0x0e, 0x09 }; - unsigned char if_agc_set[] = { 0x0f, 0x81 }; - unsigned char addr_adc_sat = 0x1a; - unsigned char addr_agc_stat = 0x1d; - unsigned char addr_pll_stat = 0x1b; - unsigned char adc_sat, agc_stat, - pll_stat; - int i; - - set_audio(fe, params); - - if (priv->cfg.config) - tuner_dbg("tda827xa config is 0x%02x\n", *priv->cfg.config); - tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2); - tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2); - tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2); - msleep(1); - - expert_mode[1] = priv->tda8290_easy_mode + 0x80; - tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2); - tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2); - tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2); - if (priv->tda8290_easy_mode & 0x60) - tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2); - else - tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2); - tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2); - - tda8290_i2c_bridge(fe, 1); - - if (fe->ops.tuner_ops.set_analog_params) - fe->ops.tuner_ops.set_analog_params(fe, params); - - for (i = 0; i < 3; i++) { - tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1); - if (pll_stat & 0x80) { - tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1); - tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1); - tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat); - break; - } else { - tuner_dbg("tda8290 not locked, no signal?\n"); - msleep(100); - } - } - /* adjust headroom resp. gain */ - if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) { - tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n", - agc_stat, adc_sat, pll_stat & 0x80); - tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2); - msleep(100); - tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1); - tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1); - if ((agc_stat > 115) || !(pll_stat & 0x80)) { - tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n", - agc_stat, pll_stat & 0x80); - if (priv->cfg.agcf) - priv->cfg.agcf(fe); - msleep(100); - tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1); - tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1); - if((agc_stat > 115) || !(pll_stat & 0x80)) { - tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat); - tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2); - tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2); - msleep(100); - } - } - } - - /* l/ l' deadlock? */ - if(priv->tda8290_easy_mode & 0x60) { - tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1); - tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1); - if ((adc_sat > 20) || !(pll_stat & 0x80)) { - tuner_dbg("trying to resolve SECAM L deadlock\n"); - tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2); - msleep(40); - tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2); - } - } - - tda8290_i2c_bridge(fe, 0); - tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2); -} - -/*---------------------------------------------------------------------*/ - -static void tda8295_power(struct dvb_frontend *fe, int enable) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */ - - tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1); - - if (enable) - buf[1] = 0x01; - else - buf[1] = 0x03; - - tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); -} - -static void tda8295_set_easy_mode(struct dvb_frontend *fe, int enable) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - unsigned char buf[] = { 0x01, 0x00 }; - - tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1); - - if (enable) - buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */ - else - buf[1] = 0x00; /* reset active bit */ - - tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); -} - -static void tda8295_set_video_std(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - unsigned char buf[] = { 0x00, priv->tda8290_easy_mode }; - - tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); - - tda8295_set_easy_mode(fe, 1); - msleep(20); - tda8295_set_easy_mode(fe, 0); -} - -/*---------------------------------------------------------------------*/ - -static void tda8295_agc1_out(struct dvb_frontend *fe, int enable) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */ - - tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1); - - if (enable) - buf[1] &= ~0x40; - else - buf[1] |= 0x40; - - tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); -} - -static void tda8295_agc2_out(struct dvb_frontend *fe, int enable) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - unsigned char set_gpio_cf[] = { 0x44, 0x00 }; - unsigned char set_gpio_val[] = { 0x46, 0x00 }; - - tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_cf[0], 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_cf[1], 1); - tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_val[0], 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_val[1], 1); - - set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */ - - if (enable) { - set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */ - set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */ - } - tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2); -} - -static int tda8295_has_signal(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char hvpll_stat = 0x26; - unsigned char ret; - - tuner_i2c_xfer_send(&priv->i2c_props, &hvpll_stat, 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &ret, 1); - return (ret & 0x01) ? 65535 : 0; -} - -/*---------------------------------------------------------------------*/ - -static void tda8295_set_params(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char blanking_mode[] = { 0x1d, 0x00 }; - - set_audio(fe, params); - - tuner_dbg("%s: freq = %d\n", __FUNCTION__, params->frequency); - - tda8295_power(fe, 1); - tda8295_agc1_out(fe, 1); - - tuner_i2c_xfer_send(&priv->i2c_props, &blanking_mode[0], 1); - tuner_i2c_xfer_recv(&priv->i2c_props, &blanking_mode[1], 1); - - tda8295_set_video_std(fe); - - blanking_mode[1] = 0x03; - tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2); - msleep(20); - - tda8295_i2c_bridge(fe, 1); - - if (fe->ops.tuner_ops.set_analog_params) - fe->ops.tuner_ops.set_analog_params(fe, params); - - if (priv->cfg.agcf) - priv->cfg.agcf(fe); - - if (tda8295_has_signal(fe)) - tuner_dbg("tda8295 is locked\n"); - else - tuner_dbg("tda8295 not locked, no signal?\n"); - - tda8295_i2c_bridge(fe, 0); -} - -/*---------------------------------------------------------------------*/ - -static int tda8290_has_signal(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char i2c_get_afc[1] = { 0x1B }; - unsigned char afc = 0; - - tuner_i2c_xfer_send(&priv->i2c_props, i2c_get_afc, ARRAY_SIZE(i2c_get_afc)); - tuner_i2c_xfer_recv(&priv->i2c_props, &afc, 1); - return (afc & 0x80)? 65535:0; -} - -/*---------------------------------------------------------------------*/ - -static void tda8290_standby(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char cb1[] = { 0x30, 0xD0 }; - unsigned char tda8290_standby[] = { 0x00, 0x02 }; - unsigned char tda8290_agc_tri[] = { 0x02, 0x20 }; - struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2}; - - tda8290_i2c_bridge(fe, 1); - if (priv->ver & TDA8275A) - cb1[1] = 0x90; - i2c_transfer(priv->i2c_props.adap, &msg, 1); - tda8290_i2c_bridge(fe, 0); - tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2); - tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2); -} - -static void tda8295_standby(struct dvb_frontend *fe) -{ - tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */ - - tda8295_power(fe, 0); -} - -static void tda8290_init_if(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - unsigned char set_VS[] = { 0x30, 0x6F }; - unsigned char set_GP00_CF[] = { 0x20, 0x01 }; - unsigned char set_GP01_CF[] = { 0x20, 0x0B }; - - if ((priv->cfg.config) && - ((*priv->cfg.config == 1) || (*priv->cfg.config == 2))) - tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2); - else - tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2); -} - -static void tda8295_init_if(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - static unsigned char set_adc_ctl[] = { 0x33, 0x14 }; - static unsigned char set_adc_ctl2[] = { 0x34, 0x00 }; - static unsigned char set_pll_reg6[] = { 0x3e, 0x63 }; - static unsigned char set_pll_reg0[] = { 0x38, 0x23 }; - static unsigned char set_pll_reg7[] = { 0x3f, 0x01 }; - static unsigned char set_pll_reg10[] = { 0x42, 0x61 }; - static unsigned char set_gpio_reg0[] = { 0x44, 0x0b }; - - tda8295_power(fe, 1); - - tda8295_set_easy_mode(fe, 0); - tda8295_set_video_std(fe); - - tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2); - tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2); - - tda8295_agc1_out(fe, 0); - tda8295_agc2_out(fe, 0); -} - -static void tda8290_init_tuner(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf, - 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 }; - unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b, - 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b }; - struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, - .buf=tda8275_init, .len = 14}; - if (priv->ver & TDA8275A) - msg.buf = tda8275a_init; - - tda8290_i2c_bridge(fe, 1); - i2c_transfer(priv->i2c_props.adap, &msg, 1); - tda8290_i2c_bridge(fe, 0); -} - -/*---------------------------------------------------------------------*/ - -static void tda829x_release(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - - /* only try to release the tuner if we've - * attached it from within this module */ - if (priv->ver & (TDA18271 | TDA8275 | TDA8275A)) - if (fe->ops.tuner_ops.release) - fe->ops.tuner_ops.release(fe); - - kfree(fe->analog_demod_priv); - fe->analog_demod_priv = NULL; -} - -static struct tda18271_config tda829x_tda18271_config = { - .gate = TDA18271_GATE_ANALOG, -}; - -static int tda829x_find_tuner(struct dvb_frontend *fe) -{ - struct tda8290_priv *priv = fe->analog_demod_priv; - struct analog_demod_ops *analog_ops = &fe->ops.analog_ops; - int i, ret, tuners_found; - u32 tuner_addrs; - u8 data; - struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 }; - - if (NULL == analog_ops->i2c_gate_ctrl) - return -EINVAL; - - analog_ops->i2c_gate_ctrl(fe, 1); - - /* probe for tuner chip */ - tuners_found = 0; - tuner_addrs = 0; - for (i = 0x60; i <= 0x63; i++) { - msg.addr = i; - ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); - if (ret == 1) { - tuners_found++; - tuner_addrs = (tuner_addrs << 8) + i; - } - } - /* if there is more than one tuner, we expect the right one is - behind the bridge and we choose the highest address that doesn't - give a response now - */ - - analog_ops->i2c_gate_ctrl(fe, 0); - - if (tuners_found > 1) - for (i = 0; i < tuners_found; i++) { - msg.addr = tuner_addrs & 0xff; - ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); - if (ret == 1) - tuner_addrs = tuner_addrs >> 8; - else - break; - } - - if (tuner_addrs == 0) { - tuner_addrs = 0x60; - tuner_info("could not clearly identify tuner address, " - "defaulting to %x\n", tuner_addrs); - } else { - tuner_addrs = tuner_addrs & 0xff; - tuner_info("setting tuner address to %x\n", tuner_addrs); - } - priv->tda827x_addr = tuner_addrs; - msg.addr = tuner_addrs; - - analog_ops->i2c_gate_ctrl(fe, 1); - ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); - - if (ret != 1) { - tuner_warn("tuner access failed!\n"); - return -EREMOTEIO; - } - - if ((data == 0x83) || (data == 0x84)) { - priv->ver |= TDA18271; - tda18271_attach(fe, priv->tda827x_addr, - priv->i2c_props.adap, - &tda829x_tda18271_config); - } else { - if ((data & 0x3c) == 0) - priv->ver |= TDA8275; - else - priv->ver |= TDA8275A; - - tda827x_attach(fe, priv->tda827x_addr, - priv->i2c_props.adap, &priv->cfg); - } - if (fe->ops.tuner_ops.init) - fe->ops.tuner_ops.init(fe); - - if (fe->ops.tuner_ops.sleep) - fe->ops.tuner_ops.sleep(fe); - - analog_ops->i2c_gate_ctrl(fe, 0); - - return 0; -} - -static int tda8290_probe(struct tuner_i2c_props *i2c_props) -{ -#define TDA8290_ID 0x89 - unsigned char tda8290_id[] = { 0x1f, 0x00 }; - - /* detect tda8290 */ - tuner_i2c_xfer_send(i2c_props, &tda8290_id[0], 1); - tuner_i2c_xfer_recv(i2c_props, &tda8290_id[1], 1); - - if (tda8290_id[1] == TDA8290_ID) { - if (debug) - printk(KERN_DEBUG "%s: tda8290 detected @ %d-%04x\n", - __FUNCTION__, i2c_adapter_id(i2c_props->adap), - i2c_props->addr); - return 0; - } - - return -ENODEV; -} - -static int tda8295_probe(struct tuner_i2c_props *i2c_props) -{ -#define TDA8295_ID 0x8a - unsigned char tda8295_id[] = { 0x2f, 0x00 }; - - /* detect tda8295 */ - tuner_i2c_xfer_send(i2c_props, &tda8295_id[0], 1); - tuner_i2c_xfer_recv(i2c_props, &tda8295_id[1], 1); - - if (tda8295_id[1] == TDA8295_ID) { - if (debug) - printk(KERN_DEBUG "%s: tda8295 detected @ %d-%04x\n", - __FUNCTION__, i2c_adapter_id(i2c_props->adap), - i2c_props->addr); - return 0; - } - - return -ENODEV; -} - -static struct analog_demod_ops tda8290_ops = { - .set_params = tda8290_set_params, - .has_signal = tda8290_has_signal, - .standby = tda8290_standby, - .release = tda829x_release, - .i2c_gate_ctrl = tda8290_i2c_bridge, -}; - -static struct analog_demod_ops tda8295_ops = { - .set_params = tda8295_set_params, - .has_signal = tda8295_has_signal, - .standby = tda8295_standby, - .release = tda829x_release, - .i2c_gate_ctrl = tda8295_i2c_bridge, -}; - -struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe, - struct i2c_adapter *i2c_adap, u8 i2c_addr, - struct tda829x_config *cfg) -{ - struct tda8290_priv *priv = NULL; - char *name; - - priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL); - if (priv == NULL) - return NULL; - fe->analog_demod_priv = priv; - - priv->i2c_props.addr = i2c_addr; - priv->i2c_props.adap = i2c_adap; - if (cfg) { - priv->cfg.config = cfg->lna_cfg; - priv->cfg.tuner_callback = cfg->tuner_callback; - } - - if (tda8290_probe(&priv->i2c_props) == 0) { - priv->ver = TDA8290; - memcpy(&fe->ops.analog_ops, &tda8290_ops, - sizeof(struct analog_demod_ops)); - } - - if (tda8295_probe(&priv->i2c_props) == 0) { - priv->ver = TDA8295; - memcpy(&fe->ops.analog_ops, &tda8295_ops, - sizeof(struct analog_demod_ops)); - } - - if ((!(cfg) || (TDA829X_PROBE_TUNER == cfg->probe_tuner)) && - (tda829x_find_tuner(fe) < 0)) - goto fail; - - switch (priv->ver) { - case TDA8290: - name = "tda8290"; - break; - case TDA8295: - name = "tda8295"; - break; - case TDA8290 | TDA8275: - name = "tda8290+75"; - break; - case TDA8295 | TDA8275: - name = "tda8295+75"; - break; - case TDA8290 | TDA8275A: - name = "tda8290+75a"; - break; - case TDA8295 | TDA8275A: - name = "tda8295+75a"; - break; - case TDA8290 | TDA18271: - name = "tda8290+18271"; - break; - case TDA8295 | TDA18271: - name = "tda8295+18271"; - break; - default: - goto fail; - } - tuner_info("type set to %s\n", name); - - fe->ops.analog_ops.info.name = name; - - if (priv->ver & TDA8290) { - tda8290_init_tuner(fe); - tda8290_init_if(fe); - } else if (priv->ver & TDA8295) - tda8295_init_if(fe); - - return fe; - -fail: - tda829x_release(fe); - return NULL; -} -EXPORT_SYMBOL_GPL(tda829x_attach); - -int tda829x_probe(struct i2c_adapter *i2c_adap, u8 i2c_addr) -{ - struct tuner_i2c_props i2c_props = { - .adap = i2c_adap, - .addr = i2c_addr, - }; - - unsigned char soft_reset[] = { 0x00, 0x00 }; - unsigned char easy_mode_b[] = { 0x01, 0x02 }; - unsigned char easy_mode_g[] = { 0x01, 0x04 }; - unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 }; - unsigned char addr_dto_lsb = 0x07; - unsigned char data; -#define PROBE_BUFFER_SIZE 8 - unsigned char buf[PROBE_BUFFER_SIZE]; - int i; - - /* rule out tda9887, which would return the same byte repeatedly */ - tuner_i2c_xfer_send(&i2c_props, soft_reset, 1); - tuner_i2c_xfer_recv(&i2c_props, buf, PROBE_BUFFER_SIZE); - for (i = 1; i < PROBE_BUFFER_SIZE; i++) { - if (buf[i] != buf[0]) - break; - } - - /* all bytes are equal, not a tda829x - probably a tda9887 */ - if (i == PROBE_BUFFER_SIZE) - return -ENODEV; - - if ((tda8290_probe(&i2c_props) == 0) || - (tda8295_probe(&i2c_props) == 0)) - return 0; - - /* fall back to old probing method */ - tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2); - tuner_i2c_xfer_send(&i2c_props, soft_reset, 2); - tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1); - tuner_i2c_xfer_recv(&i2c_props, &data, 1); - if (data == 0) { - tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2); - tuner_i2c_xfer_send(&i2c_props, soft_reset, 2); - tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1); - tuner_i2c_xfer_recv(&i2c_props, &data, 1); - if (data == 0x7b) { - return 0; - } - } - tuner_i2c_xfer_send(&i2c_props, restore_9886, 3); - return -ENODEV; -} -EXPORT_SYMBOL_GPL(tda829x_probe); - -MODULE_DESCRIPTION("Philips/NXP TDA8290/TDA8295 analog IF demodulator driver"); -MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky"); -MODULE_LICENSE("GPL"); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |