forked from Minki/linux
V4L/DVB (4396): Add drivers for tda10086 + tda826x chips
TDA10086 is a new DVB-S demodulator TDA826x is a DVB-S Silicon Tuner Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Andrew de Quincey
Mauro Carvalho Chehab
parent
2cd885aa0f
commit
6bca3580c3
@ -46,6 +46,13 @@ config DVB_S5H1420
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help
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A DVB-S tuner module. Say Y when you want to support this frontend.
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config DVB_TDA10086
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tristate "Philips TDA10086 based"
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depends on DVB_CORE
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default m if DVB_FE_CUSTOMISE
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help
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A DVB-S tuner module. Say Y when you want to support this frontend.
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comment "DVB-T (terrestrial) frontends"
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depends on DVB_CORE
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@ -216,6 +223,15 @@ config DVB_LGDT330X
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An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
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to support this frontend.
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comment "Tuners/PLL support"
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depends on DVB_CORE
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config DVB_TDA826X
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tristate "Philips TDA826X silicon tuner"
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depends on DVB_CORE
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default m if DVB_FE_CUSTOMISE
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help
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A DVB-S silicon tuner module. Say Y when you want to support this tuner.
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comment "Miscellaneous devices"
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depends on DVB_CORE
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@ -33,3 +33,5 @@ obj-$(CONFIG_DVB_LGDT330X) += lgdt330x.o
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obj-$(CONFIG_DVB_CX24123) += cx24123.o
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obj-$(CONFIG_DVB_LNBP21) += lnbp21.o
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obj-$(CONFIG_DVB_ISL6421) += isl6421.o
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obj-$(CONFIG_DVB_TDA10086) += tda10086.o
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obj-$(CONFIG_DVB_TDA826X) += tda826x.o
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740
drivers/media/dvb/frontends/tda10086.c
Normal file
740
drivers/media/dvb/frontends/tda10086.c
Normal file
@ -0,0 +1,740 @@
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/*
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Driver for Philips tda10086 DVBS Demodulator
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(c) 2006 Andrew de Quincey
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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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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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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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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <linux/jiffies.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include "dvb_frontend.h"
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#include "tda10086.h"
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#define SACLK 96000000
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struct tda10086_state {
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struct i2c_adapter* i2c;
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const struct tda10086_config* config;
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struct dvb_frontend frontend;
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/* private demod data */
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u32 frequency;
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u32 symbol_rate;
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};
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static int debug = 1;
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#define dprintk(args...) \
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do { \
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if (debug) printk(KERN_DEBUG "tda10086: " args); \
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} while (0)
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static int tda10086_write_byte(struct tda10086_state *state, int reg, int data)
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{
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int ret;
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u8 b0[] = { reg, data };
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struct i2c_msg msg = { .flags = 0, .buf = b0, .len = 2 };
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msg.addr = state->config->demod_address;
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ret = i2c_transfer(state->i2c, &msg, 1);
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if (ret != 1)
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dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",
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__FUNCTION__, reg, data, ret);
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return (ret != 1) ? ret : 0;
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}
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static int tda10086_read_byte(struct tda10086_state *state, int reg)
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{
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int ret;
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u8 b0[] = { reg };
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u8 b1[] = { 0 };
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struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 },
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{ .flags = I2C_M_RD, .buf = b1, .len = 1 }};
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msg[0].addr = state->config->demod_address;
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msg[1].addr = state->config->demod_address;
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ret = i2c_transfer(state->i2c, msg, 2);
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if (ret != 2) {
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dprintk("%s: error reg=0x%x, ret=%i\n", __FUNCTION__, reg,
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ret);
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return ret;
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}
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return b1[0];
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}
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static int tda10086_write_mask(struct tda10086_state *state, int reg, int mask, int data)
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{
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int val;
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// read a byte and check
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val = tda10086_read_byte(state, reg);
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if (val < 0)
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return val;
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// mask if off
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val = val & ~mask;
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val |= data & 0xff;
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// write it out again
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return tda10086_write_byte(state, reg, val);
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}
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static int tda10086_init(struct dvb_frontend* fe)
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{
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struct tda10086_state* state = fe->demodulator_priv;
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dprintk ("%s\n", __FUNCTION__);
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// reset
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tda10086_write_byte(state, 0x00, 0x00);
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msleep(10);
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// misc setup
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tda10086_write_byte(state, 0x01, 0x94);
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tda10086_write_byte(state, 0x02, 0x35); // NOTE: TT drivers appear to disable CSWP
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tda10086_write_byte(state, 0x03, 0x64);
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tda10086_write_byte(state, 0x04, 0x43);
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tda10086_write_byte(state, 0x0c, 0x0c);
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tda10086_write_byte(state, 0x1b, 0xb0); // noise threshold
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tda10086_write_byte(state, 0x20, 0x89); // misc
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tda10086_write_byte(state, 0x30, 0x04); // acquisition period length
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tda10086_write_byte(state, 0x32, 0x00); // irq off
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tda10086_write_byte(state, 0x31, 0x56); // setup AFC
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// setup PLL (assumes 16Mhz XIN)
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tda10086_write_byte(state, 0x55, 0x2c); // misc PLL setup
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tda10086_write_byte(state, 0x3a, 0x0b); // M=12
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tda10086_write_byte(state, 0x3b, 0x01); // P=2
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tda10086_write_mask(state, 0x55, 0x20, 0x00); // powerup PLL
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// setup TS interface
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tda10086_write_byte(state, 0x11, 0x81);
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tda10086_write_byte(state, 0x12, 0x81);
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tda10086_write_byte(state, 0x19, 0x40); // parallel mode A + MSBFIRST
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tda10086_write_byte(state, 0x56, 0x80); // powerdown WPLL - unused in the mode we use
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tda10086_write_byte(state, 0x57, 0x08); // bypass WPLL - unused in the mode we use
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tda10086_write_byte(state, 0x10, 0x2a);
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// setup ADC
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tda10086_write_byte(state, 0x58, 0x61); // ADC setup
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tda10086_write_mask(state, 0x58, 0x01, 0x00); // powerup ADC
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// setup AGC
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tda10086_write_byte(state, 0x05, 0x0B);
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tda10086_write_byte(state, 0x37, 0x63);
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tda10086_write_byte(state, 0x3f, 0x03); // NOTE: flydvb uses 0x0a and varies it
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tda10086_write_byte(state, 0x40, 0x64);
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tda10086_write_byte(state, 0x41, 0x4f);
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tda10086_write_byte(state, 0x42, 0x43);
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// setup viterbi
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tda10086_write_byte(state, 0x1a, 0x11); // VBER 10^6, DVB, QPSK
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// setup carrier recovery
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tda10086_write_byte(state, 0x3d, 0x80);
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// setup SEC
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tda10086_write_byte(state, 0x36, 0x00); // all SEC off
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tda10086_write_byte(state, 0x34, (((1<<19) * (22000/1000)) / (SACLK/1000))); // } tone frequency
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tda10086_write_byte(state, 0x35, (((1<<19) * (22000/1000)) / (SACLK/1000)) >> 8); // }
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return 0;
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}
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static void tda10086_diseqc_wait(struct tda10086_state *state)
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{
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unsigned long timeout = jiffies + msecs_to_jiffies(200);
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while (!(tda10086_read_byte(state, 0x50) & 0x01)) {
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if(time_after(jiffies, timeout)) {
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printk("%s: diseqc queue not ready, command may be lost.\n", __FUNCTION__);
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break;
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}
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msleep(10);
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}
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}
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static int tda10086_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
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{
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struct tda10086_state* state = fe->demodulator_priv;
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dprintk ("%s\n", __FUNCTION__);
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switch(tone) {
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case SEC_TONE_OFF:
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tda10086_write_byte(state, 0x36, 0x00);
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break;
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case SEC_TONE_ON:
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tda10086_write_byte(state, 0x36, 0x01);
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break;
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}
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return 0;
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}
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static int tda10086_send_master_cmd (struct dvb_frontend* fe,
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struct dvb_diseqc_master_cmd* cmd)
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{
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struct tda10086_state* state = fe->demodulator_priv;
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int i;
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u8 oldval;
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dprintk ("%s\n", __FUNCTION__);
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if (cmd->msg_len > 6)
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return -EINVAL;
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oldval = tda10086_read_byte(state, 0x36);
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for(i=0; i< cmd->msg_len; i++) {
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tda10086_write_byte(state, 0x48+i, cmd->msg[i]);
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}
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tda10086_write_byte(state, 0x36, 0x08 | ((cmd->msg_len + 1) << 4));
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tda10086_diseqc_wait(state);
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tda10086_write_byte(state, 0x36, oldval);
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return 0;
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}
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static int tda10086_send_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
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{
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struct tda10086_state* state = fe->demodulator_priv;
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u8 oldval = tda10086_read_byte(state, 0x36);
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dprintk ("%s\n", __FUNCTION__);
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switch(minicmd) {
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case SEC_MINI_A:
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tda10086_write_byte(state, 0x36, 0x04);
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break;
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case SEC_MINI_B:
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tda10086_write_byte(state, 0x36, 0x06);
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break;
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}
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tda10086_diseqc_wait(state);
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tda10086_write_byte(state, 0x36, oldval);
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return 0;
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}
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static int tda10086_set_inversion(struct tda10086_state *state,
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struct dvb_frontend_parameters *fe_params)
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{
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u8 invval = 0x80;
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dprintk ("%s %i %i\n", __FUNCTION__, fe_params->inversion, state->config->invert);
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switch(fe_params->inversion) {
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case INVERSION_OFF:
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if (state->config->invert)
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invval = 0x40;
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break;
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case INVERSION_ON:
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if (!state->config->invert)
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invval = 0x40;
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break;
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case INVERSION_AUTO:
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invval = 0x00;
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break;
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}
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tda10086_write_mask(state, 0x0c, 0xc0, invval);
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return 0;
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}
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static int tda10086_set_symbol_rate(struct tda10086_state *state,
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struct dvb_frontend_parameters *fe_params)
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{
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u8 dfn = 0;
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u8 afs = 0;
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u8 byp = 0;
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u8 reg37 = 0x43;
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u8 reg42 = 0x43;
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u64 big;
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u32 tmp;
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u32 bdr;
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u32 bdri;
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u32 symbol_rate = fe_params->u.qpsk.symbol_rate;
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dprintk ("%s %i\n", __FUNCTION__, symbol_rate);
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// setup the decimation and anti-aliasing filters..
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if (symbol_rate < (u32) (SACLK * 0.0137)) {
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dfn=4;
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afs=1;
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} else if (symbol_rate < (u32) (SACLK * 0.0208)) {
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dfn=4;
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afs=0;
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} else if (symbol_rate < (u32) (SACLK * 0.0270)) {
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dfn=3;
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afs=1;
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} else if (symbol_rate < (u32) (SACLK * 0.0416)) {
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dfn=3;
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afs=0;
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} else if (symbol_rate < (u32) (SACLK * 0.0550)) {
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dfn=2;
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afs=1;
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} else if (symbol_rate < (u32) (SACLK * 0.0833)) {
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dfn=2;
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afs=0;
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} else if (symbol_rate < (u32) (SACLK * 0.1100)) {
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dfn=1;
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afs=1;
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} else if (symbol_rate < (u32) (SACLK * 0.1666)) {
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dfn=1;
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afs=0;
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} else if (symbol_rate < (u32) (SACLK * 0.2200)) {
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dfn=0;
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afs=1;
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} else if (symbol_rate < (u32) (SACLK * 0.3333)) {
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dfn=0;
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afs=0;
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} else {
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reg37 = 0x63;
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reg42 = 0x4f;
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byp=1;
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}
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// calculate BDR
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big = (1ULL<<21) * ((u64) symbol_rate/1000ULL) * (1ULL<<dfn);
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big += ((SACLK/1000ULL)-1ULL);
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do_div(big, (SACLK/1000ULL));
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bdr = big & 0xfffff;
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// calculate BDRI
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tmp = (1<<dfn)*(symbol_rate/1000);
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bdri = ((32 * (SACLK/1000)) + (tmp-1)) / tmp;
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tda10086_write_byte(state, 0x21, (afs << 7) | dfn);
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tda10086_write_mask(state, 0x20, 0x08, byp << 3);
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tda10086_write_byte(state, 0x06, bdr);
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tda10086_write_byte(state, 0x07, bdr >> 8);
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tda10086_write_byte(state, 0x08, bdr >> 16);
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tda10086_write_byte(state, 0x09, bdri);
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tda10086_write_byte(state, 0x37, reg37);
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tda10086_write_byte(state, 0x42, reg42);
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return 0;
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}
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static int tda10086_set_fec(struct tda10086_state *state,
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struct dvb_frontend_parameters *fe_params)
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{
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u8 fecval;
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dprintk ("%s %i\n", __FUNCTION__, fe_params->u.qpsk.fec_inner);
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switch(fe_params->u.qpsk.fec_inner) {
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case FEC_1_2:
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fecval = 0x00;
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break;
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case FEC_2_3:
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fecval = 0x01;
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break;
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case FEC_3_4:
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fecval = 0x02;
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break;
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case FEC_4_5:
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fecval = 0x03;
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break;
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case FEC_5_6:
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fecval = 0x04;
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break;
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case FEC_6_7:
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fecval = 0x05;
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break;
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case FEC_7_8:
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fecval = 0x06;
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break;
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case FEC_8_9:
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fecval = 0x07;
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break;
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case FEC_AUTO:
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fecval = 0x08;
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break;
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default:
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return -1;
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}
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tda10086_write_byte(state, 0x0d, fecval);
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return 0;
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}
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static int tda10086_set_frontend(struct dvb_frontend* fe,
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struct dvb_frontend_parameters *fe_params)
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{
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struct tda10086_state *state = fe->demodulator_priv;
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int ret;
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u32 freq = 0;
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int freqoff;
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dprintk ("%s\n", __FUNCTION__);
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// set params
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if (fe->ops.tuner_ops.set_params) {
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fe->ops.tuner_ops.set_params(fe, fe_params);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
|
||||
if (fe->ops.tuner_ops.get_frequency)
|
||||
fe->ops.tuner_ops.get_frequency(fe, &freq);
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
}
|
||||
|
||||
// calcluate the frequency offset (in *Hz* not kHz)
|
||||
freqoff = fe_params->frequency - freq;
|
||||
freqoff = ((1<<16) * freqoff) / (SACLK/1000);
|
||||
tda10086_write_byte(state, 0x3d, 0x80 | ((freqoff >> 8) & 0x7f));
|
||||
tda10086_write_byte(state, 0x3e, freqoff);
|
||||
|
||||
if ((ret = tda10086_set_inversion(state, fe_params)) < 0)
|
||||
return ret;
|
||||
if ((ret = tda10086_set_symbol_rate(state, fe_params)) < 0)
|
||||
return ret;
|
||||
if ((ret = tda10086_set_fec(state, fe_params)) < 0)
|
||||
return ret;
|
||||
|
||||
// soft reset + disable TS output until lock
|
||||
tda10086_write_mask(state, 0x10, 0x40, 0x40);
|
||||
tda10086_write_mask(state, 0x00, 0x01, 0x00);
|
||||
|
||||
state->symbol_rate = fe_params->u.qpsk.symbol_rate;
|
||||
state->frequency = fe_params->frequency;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *fe_params)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
u8 val;
|
||||
int tmp;
|
||||
u64 tmp64;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
// calculate the updated frequency (note: we convert from Hz->kHz)
|
||||
tmp64 = tda10086_read_byte(state, 0x52);
|
||||
tmp64 |= (tda10086_read_byte(state, 0x51) << 8);
|
||||
if (tmp64 & 0x8000)
|
||||
tmp64 |= 0xffffffffffff0000ULL;
|
||||
tmp64 = (tmp64 * (SACLK/1000ULL));
|
||||
do_div(tmp64, (1ULL<<15) * (1ULL<<1));
|
||||
fe_params->frequency = (int) state->frequency + (int) tmp64;
|
||||
|
||||
// the inversion
|
||||
val = tda10086_read_byte(state, 0x0c);
|
||||
if (val & 0x80) {
|
||||
switch(val & 0x40) {
|
||||
case 0x00:
|
||||
fe_params->inversion = INVERSION_OFF;
|
||||
if (state->config->invert)
|
||||
fe_params->inversion = INVERSION_ON;
|
||||
break;
|
||||
default:
|
||||
fe_params->inversion = INVERSION_ON;
|
||||
if (state->config->invert)
|
||||
fe_params->inversion = INVERSION_OFF;
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
tda10086_read_byte(state, 0x0f);
|
||||
switch(val & 0x02) {
|
||||
case 0x00:
|
||||
fe_params->inversion = INVERSION_OFF;
|
||||
if (state->config->invert)
|
||||
fe_params->inversion = INVERSION_ON;
|
||||
break;
|
||||
default:
|
||||
fe_params->inversion = INVERSION_ON;
|
||||
if (state->config->invert)
|
||||
fe_params->inversion = INVERSION_OFF;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// calculate the updated symbol rate
|
||||
tmp = tda10086_read_byte(state, 0x1d);
|
||||
if (tmp & 0x80)
|
||||
tmp |= 0xffffff00;
|
||||
tmp = (tmp * 480 * (1<<1)) / 128;
|
||||
tmp = ((state->symbol_rate/1000) * tmp) / (1000000/1000);
|
||||
fe_params->u.qpsk.symbol_rate = state->symbol_rate + tmp;
|
||||
|
||||
// the FEC
|
||||
val = (tda10086_read_byte(state, 0x0d) & 0x70) >> 4;
|
||||
switch(val) {
|
||||
case 0x00:
|
||||
fe_params->u.qpsk.fec_inner = FEC_1_2;
|
||||
break;
|
||||
case 0x01:
|
||||
fe_params->u.qpsk.fec_inner = FEC_2_3;
|
||||
break;
|
||||
case 0x02:
|
||||
fe_params->u.qpsk.fec_inner = FEC_3_4;
|
||||
break;
|
||||
case 0x03:
|
||||
fe_params->u.qpsk.fec_inner = FEC_4_5;
|
||||
break;
|
||||
case 0x04:
|
||||
fe_params->u.qpsk.fec_inner = FEC_5_6;
|
||||
break;
|
||||
case 0x05:
|
||||
fe_params->u.qpsk.fec_inner = FEC_6_7;
|
||||
break;
|
||||
case 0x06:
|
||||
fe_params->u.qpsk.fec_inner = FEC_7_8;
|
||||
break;
|
||||
case 0x07:
|
||||
fe_params->u.qpsk.fec_inner = FEC_8_9;
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_read_status(struct dvb_frontend* fe, fe_status_t *fe_status)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
u8 val;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
val = tda10086_read_byte(state, 0x0e);
|
||||
*fe_status = 0;
|
||||
if (val & 0x01)
|
||||
*fe_status |= FE_HAS_SIGNAL;
|
||||
if (val & 0x02)
|
||||
*fe_status |= FE_HAS_CARRIER;
|
||||
if (val & 0x04)
|
||||
*fe_status |= FE_HAS_VITERBI;
|
||||
if (val & 0x08)
|
||||
*fe_status |= FE_HAS_SYNC;
|
||||
if (val & 0x10)
|
||||
*fe_status |= FE_HAS_LOCK;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_read_signal_strength(struct dvb_frontend* fe, u16 * signal)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
u8 _str;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
_str = tda10086_read_byte(state, 0x43);
|
||||
*signal = (_str << 8) | _str;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_read_snr(struct dvb_frontend* fe, u16 * snr)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
u8 _snr;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
_snr = tda10086_read_byte(state, 0x1c);
|
||||
*snr = (_snr << 8) | _snr;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
// read it
|
||||
*ucblocks = tda10086_read_byte(state, 0x18) & 0x7f;
|
||||
|
||||
// reset counter
|
||||
tda10086_write_byte(state, 0x18, 0x00);
|
||||
tda10086_write_byte(state, 0x18, 0x80);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_read_ber(struct dvb_frontend* fe, u32* ber)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
// read it
|
||||
*ber = 0;
|
||||
*ber |= tda10086_read_byte(state, 0x15);
|
||||
*ber |= tda10086_read_byte(state, 0x16) << 8;
|
||||
*ber |= (tda10086_read_byte(state, 0x17) & 0xf) << 16;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_sleep(struct dvb_frontend* fe)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
tda10086_write_mask(state, 0x00, 0x08, 0x08);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
|
||||
{
|
||||
struct tda10086_state* state = fe->demodulator_priv;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
if (enable) {
|
||||
tda10086_write_mask(state, 0x00, 0x10, 0x10);
|
||||
} else {
|
||||
tda10086_write_mask(state, 0x00, 0x10, 0x00);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda10086_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
|
||||
{
|
||||
if (fesettings->parameters.u.qpsk.symbol_rate > 20000000) {
|
||||
fesettings->min_delay_ms = 50;
|
||||
fesettings->step_size = 2000;
|
||||
fesettings->max_drift = 8000;
|
||||
} else if (fesettings->parameters.u.qpsk.symbol_rate > 12000000) {
|
||||
fesettings->min_delay_ms = 100;
|
||||
fesettings->step_size = 1500;
|
||||
fesettings->max_drift = 9000;
|
||||
} else if (fesettings->parameters.u.qpsk.symbol_rate > 8000000) {
|
||||
fesettings->min_delay_ms = 100;
|
||||
fesettings->step_size = 1000;
|
||||
fesettings->max_drift = 8000;
|
||||
} else if (fesettings->parameters.u.qpsk.symbol_rate > 4000000) {
|
||||
fesettings->min_delay_ms = 100;
|
||||
fesettings->step_size = 500;
|
||||
fesettings->max_drift = 7000;
|
||||
} else if (fesettings->parameters.u.qpsk.symbol_rate > 2000000) {
|
||||
fesettings->min_delay_ms = 200;
|
||||
fesettings->step_size = (fesettings->parameters.u.qpsk.symbol_rate / 8000);
|
||||
fesettings->max_drift = 14 * fesettings->step_size;
|
||||
} else {
|
||||
fesettings->min_delay_ms = 200;
|
||||
fesettings->step_size = (fesettings->parameters.u.qpsk.symbol_rate / 8000);
|
||||
fesettings->max_drift = 18 * fesettings->step_size;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void tda10086_release(struct dvb_frontend* fe)
|
||||
{
|
||||
struct tda10086_state *state = fe->demodulator_priv;
|
||||
tda10086_sleep(fe);
|
||||
kfree(state);
|
||||
}
|
||||
|
||||
static struct dvb_frontend_ops tda10086_ops = {
|
||||
|
||||
.info = {
|
||||
.name = "Philips TDA10086 DVB-S",
|
||||
.type = FE_QPSK,
|
||||
.frequency_min = 950000,
|
||||
.frequency_max = 2150000,
|
||||
.frequency_stepsize = 125, /* kHz for QPSK frontends */
|
||||
.symbol_rate_min = 1000000,
|
||||
.symbol_rate_max = 45000000,
|
||||
.caps = FE_CAN_INVERSION_AUTO |
|
||||
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
||||
FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
||||
FE_CAN_QPSK
|
||||
},
|
||||
|
||||
.release = tda10086_release,
|
||||
|
||||
.init = tda10086_init,
|
||||
.sleep = tda10086_sleep,
|
||||
.i2c_gate_ctrl = tda10086_i2c_gate_ctrl,
|
||||
|
||||
.set_frontend = tda10086_set_frontend,
|
||||
.get_frontend = tda10086_get_frontend,
|
||||
.get_tune_settings = tda10086_get_tune_settings,
|
||||
|
||||
.read_status = tda10086_read_status,
|
||||
.read_ber = tda10086_read_ber,
|
||||
.read_signal_strength = tda10086_read_signal_strength,
|
||||
.read_snr = tda10086_read_snr,
|
||||
.read_ucblocks = tda10086_read_ucblocks,
|
||||
|
||||
.diseqc_send_master_cmd = tda10086_send_master_cmd,
|
||||
.diseqc_send_burst = tda10086_send_burst,
|
||||
.set_tone = tda10086_set_tone,
|
||||
};
|
||||
|
||||
struct dvb_frontend* tda10086_attach(const struct tda10086_config* config,
|
||||
struct i2c_adapter* i2c)
|
||||
{
|
||||
struct tda10086_state *state;
|
||||
|
||||
dprintk ("%s\n", __FUNCTION__);
|
||||
|
||||
/* allocate memory for the internal state */
|
||||
state = kmalloc(sizeof(struct tda10086_state), GFP_KERNEL);
|
||||
if (!state)
|
||||
return NULL;
|
||||
|
||||
/* setup the state */
|
||||
state->config = config;
|
||||
state->i2c = i2c;
|
||||
|
||||
/* check if the demod is there */
|
||||
if (tda10086_read_byte(state, 0x1e) != 0xe1) {
|
||||
kfree(state);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* create dvb_frontend */
|
||||
memcpy(&state->frontend.ops, &tda10086_ops, sizeof(struct dvb_frontend_ops));
|
||||
state->frontend.demodulator_priv = state;
|
||||
return &state->frontend;
|
||||
}
|
||||
|
||||
module_param(debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
|
||||
|
||||
MODULE_DESCRIPTION("Philips TDA10086 DVB-S Demodulator");
|
||||
MODULE_AUTHOR("Andrew de Quincey");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
EXPORT_SYMBOL(tda10086_attach);
|
||||
41
drivers/media/dvb/frontends/tda10086.h
Normal file
41
drivers/media/dvb/frontends/tda10086.h
Normal file
@ -0,0 +1,41 @@
|
||||
/*
|
||||
Driver for Philips tda10086 DVBS Frontend
|
||||
|
||||
(c) 2006 Andrew de Quincey
|
||||
|
||||
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.
|
||||
|
||||
*/
|
||||
|
||||
#ifndef TDA10086_H
|
||||
#define TDA10086_H
|
||||
|
||||
#include <linux/dvb/frontend.h>
|
||||
#include <linux/firmware.h>
|
||||
|
||||
struct tda10086_config
|
||||
{
|
||||
/* the demodulator's i2c address */
|
||||
u8 demod_address;
|
||||
|
||||
/* does the "inversion" need inverted? */
|
||||
u8 invert;
|
||||
};
|
||||
|
||||
extern struct dvb_frontend* tda10086_attach(const struct tda10086_config* config,
|
||||
struct i2c_adapter* i2c);
|
||||
|
||||
#endif // TDA10086_H
|
||||
160
drivers/media/dvb/frontends/tda826x.c
Normal file
160
drivers/media/dvb/frontends/tda826x.c
Normal file
@ -0,0 +1,160 @@
|
||||
/*
|
||||
Driver for Philips tda8262/tda8263 DVBS Silicon tuners
|
||||
|
||||
(c) 2006 Andrew de Quincey
|
||||
|
||||
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 "tda826x.h"
|
||||
|
||||
struct tda826x_priv {
|
||||
/* i2c details */
|
||||
int i2c_address;
|
||||
struct i2c_adapter *i2c;
|
||||
u8 has_loopthrough:1;
|
||||
u32 frequency;
|
||||
};
|
||||
|
||||
static int tda826x_release(struct dvb_frontend *fe)
|
||||
{
|
||||
if (fe->tuner_priv)
|
||||
kfree(fe->tuner_priv);
|
||||
fe->tuner_priv = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tda826x_sleep(struct dvb_frontend *fe)
|
||||
{
|
||||
struct tda826x_priv *priv = fe->tuner_priv;
|
||||
int ret;
|
||||
u8 buf [] = { 0x00, 0x8d };
|
||||
struct i2c_msg msg = { .addr = priv->i2c_address, .flags = 0, .buf = buf, .len = 2 };
|
||||
|
||||
if (!priv->has_loopthrough)
|
||||
buf[1] = 0xad;
|
||||
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 1);
|
||||
if ((ret = i2c_transfer (priv->i2c, &msg, 1)) != 1) {
|
||||
printk("%s: i2c error\n", __FUNCTION__);
|
||||
}
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
printk("%s:\n", __FUNCTION__);
|
||||
|
||||
return (ret == 1) ? 0 : ret;
|
||||
}
|
||||
|
||||
static int tda826x_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
|
||||
{
|
||||
struct tda826x_priv *priv = fe->tuner_priv;
|
||||
int ret;
|
||||
u32 div;
|
||||
u8 buf [11];
|
||||
struct i2c_msg msg = { .addr = priv->i2c_address, .flags = 0, .buf = buf, .len = 11 };
|
||||
|
||||
div = (params->frequency + (1000-1)) / 1000;
|
||||
|
||||
buf[0] = 0x00; // subaddress
|
||||
buf[1] = 0x09; // powerdown RSSI + the magic value 1
|
||||
if (!priv->has_loopthrough)
|
||||
buf[1] |= 0x20; // power down loopthrough if not needed
|
||||
buf[2] = (1<<5) | 0x0b; // 1Mhz + 0.45 VCO
|
||||
buf[3] = div >> 7;
|
||||
buf[4] = div << 1;
|
||||
buf[5] = 0xff; // basedband filter to max
|
||||
buf[6] = 0xfe; // gains at max + no RF attenuation
|
||||
buf[7] = 0x83; // charge pumps at high, tests off
|
||||
buf[8] = 0x80; // recommended value 4 for AMPVCO + disable ports.
|
||||
buf[9] = 0x1a; // normal caltime + recommended values for SELTH + SELVTL
|
||||
buf[10] = 0xd4; // recommended value 13 for BBIAS + unknown bit set on
|
||||
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 1);
|
||||
if ((ret = i2c_transfer (priv->i2c, &msg, 1)) != 1) {
|
||||
printk("%s: i2c error\n", __FUNCTION__);
|
||||
}
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
|
||||
priv->frequency = div * 1000;
|
||||
printk("%s:\n", __FUNCTION__);
|
||||
|
||||
return (ret == 1) ? 0 : ret;
|
||||
}
|
||||
|
||||
static int tda826x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
||||
{
|
||||
struct tda826x_priv *priv = fe->tuner_priv;
|
||||
*frequency = priv->frequency;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct dvb_tuner_ops tda826x_tuner_ops = {
|
||||
.release = tda826x_release,
|
||||
.sleep = tda826x_sleep,
|
||||
.set_params = tda826x_set_params,
|
||||
.get_frequency = tda826x_get_frequency,
|
||||
};
|
||||
|
||||
struct dvb_frontend *tda826x_attach(struct dvb_frontend *fe, int addr, struct i2c_adapter *i2c, int has_loopthrough)
|
||||
{
|
||||
struct tda826x_priv *priv = NULL;
|
||||
u8 b1 [] = { 0, 0 };
|
||||
struct i2c_msg msg [] = { { .addr = addr, .flags = 0, .buf = NULL, .len = 0 },
|
||||
{ .addr = addr, .flags = I2C_M_RD, .buf = b1, .len = 2 } };
|
||||
int ret;
|
||||
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 1);
|
||||
ret = i2c_transfer (i2c, msg, 2);
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
|
||||
if (ret != 2)
|
||||
return NULL;
|
||||
if (!(b1[1] & 0x80))
|
||||
return NULL;
|
||||
|
||||
priv = kzalloc(sizeof(struct tda826x_priv), GFP_KERNEL);
|
||||
if (priv == NULL)
|
||||
return NULL;
|
||||
|
||||
priv->i2c_address = addr;
|
||||
priv->i2c = i2c;
|
||||
priv->has_loopthrough = has_loopthrough;
|
||||
|
||||
memcpy(&fe->ops.tuner_ops, &tda826x_tuner_ops, sizeof(struct dvb_tuner_ops));
|
||||
strncpy(fe->ops.tuner_ops.info.name, "Philips TDA826X", 128);
|
||||
fe->ops.tuner_ops.info.frequency_min = 950000;
|
||||
fe->ops.tuner_ops.info.frequency_min = 2175000;
|
||||
|
||||
fe->tuner_priv = priv;
|
||||
printk("%s:\n", __FUNCTION__);
|
||||
|
||||
return fe;
|
||||
}
|
||||
EXPORT_SYMBOL(tda826x_attach);
|
||||
|
||||
MODULE_DESCRIPTION("DVB TDA826x driver");
|
||||
MODULE_AUTHOR("Andrew de Quincey");
|
||||
MODULE_LICENSE("GPL");
|
||||
40
drivers/media/dvb/frontends/tda826x.h
Normal file
40
drivers/media/dvb/frontends/tda826x.h
Normal file
@ -0,0 +1,40 @@
|
||||
/*
|
||||
Driver for Philips tda8262/tda8263 DVBS Silicon tuners
|
||||
|
||||
(c) 2006 Andrew de Quincey
|
||||
|
||||
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.
|
||||
|
||||
*/
|
||||
|
||||
#ifndef __DVB_TDA826X_H__
|
||||
#define __DVB_TDA826X_H__
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include "dvb_frontend.h"
|
||||
|
||||
/**
|
||||
* Attach a tda826x tuner to the supplied frontend structure.
|
||||
*
|
||||
* @param fe Frontend to attach to.
|
||||
* @param addr i2c address of the tuner.
|
||||
* @param i2c i2c adapter to use.
|
||||
* @param has_loopthrough Set to 1 if the card has a loopthrough RF connector.
|
||||
* @return FE pointer on success, NULL on failure.
|
||||
*/
|
||||
extern struct dvb_frontend *tda826x_attach(struct dvb_frontend *fe, int addr, struct i2c_adapter *i2c, int has_loopthrough);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user