V4L/DVB (4396): Add drivers for tda10086 + tda826x chips
Andrew de Quincey [Tue, 8 Aug 2006 12:10:10 +0000 (09:10 -0300)]
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>

drivers/media/dvb/frontends/Kconfig
drivers/media/dvb/frontends/Makefile
drivers/media/dvb/frontends/tda10086.c [new file with mode: 0644]
drivers/media/dvb/frontends/tda10086.h [new file with mode: 0644]
drivers/media/dvb/frontends/tda826x.c [new file with mode: 0644]
drivers/media/dvb/frontends/tda826x.h [new file with mode: 0644]

index db97855..5cf96c2 100644 (file)
@@ -46,6 +46,13 @@ config DVB_S5H1420
        help
          A DVB-S tuner module. Say Y when you want to support this frontend.
 
+config DVB_TDA10086
+       tristate "Philips TDA10086 based"
+       depends on DVB_CORE
+       default m if DVB_FE_CUSTOMISE
+       help
+         A DVB-S tuner module. Say Y when you want to support this frontend.
+
 comment "DVB-T (terrestrial) frontends"
        depends on DVB_CORE
 
@@ -216,6 +223,15 @@ config DVB_LGDT330X
          An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
          to support this frontend.
 
+comment "Tuners/PLL support"
+       depends on DVB_CORE
+
+config DVB_TDA826X
+       tristate "Philips TDA826X silicon tuner"
+       depends on DVB_CORE
+       default m if DVB_FE_CUSTOMISE
+       help
+         A DVB-S silicon tuner module. Say Y when you want to support this tuner.
 
 comment "Miscellaneous devices"
        depends on DVB_CORE
index 0e4880b..646aa6d 100644 (file)
@@ -33,3 +33,5 @@ obj-$(CONFIG_DVB_LGDT330X) += lgdt330x.o
 obj-$(CONFIG_DVB_CX24123) += cx24123.o
 obj-$(CONFIG_DVB_LNBP21) += lnbp21.o
 obj-$(CONFIG_DVB_ISL6421) += isl6421.o
+obj-$(CONFIG_DVB_TDA10086) += tda10086.o
+obj-$(CONFIG_DVB_TDA826X) += tda826x.o
diff --git a/drivers/media/dvb/frontends/tda10086.c b/drivers/media/dvb/frontends/tda10086.c
new file mode 100644 (file)
index 0000000..5d18eba
--- /dev/null
@@ -0,0 +1,740 @@
+  /*
+     Driver for Philips tda10086 DVBS Demodulator
+
+     (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/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/jiffies.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+#include "tda10086.h"
+
+#define SACLK 96000000
+
+struct tda10086_state {
+       struct i2c_adapter* i2c;
+       const struct tda10086_config* config;
+       struct dvb_frontend frontend;
+
+       /* private demod data */
+       u32 frequency;
+       u32 symbol_rate;
+};
+
+static int debug = 1;
+#define dprintk(args...) \
+       do { \
+               if (debug) printk(KERN_DEBUG "tda10086: " args); \
+       } while (0)
+
+static int tda10086_write_byte(struct tda10086_state *state, int reg, int data)
+{
+       int ret;
+       u8 b0[] = { reg, data };
+       struct i2c_msg msg = { .flags = 0, .buf = b0, .len = 2 };
+
+       msg.addr = state->config->demod_address;
+       ret = i2c_transfer(state->i2c, &msg, 1);
+
+       if (ret != 1)
+               dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",
+                       __FUNCTION__, reg, data, ret);
+
+       return (ret != 1) ? ret : 0;
+}
+
+static int tda10086_read_byte(struct tda10086_state *state, int reg)
+{
+       int ret;
+       u8 b0[] = { reg };
+       u8 b1[] = { 0 };
+       struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 },
+                               { .flags = I2C_M_RD, .buf = b1, .len = 1 }};
+
+       msg[0].addr = state->config->demod_address;
+       msg[1].addr = state->config->demod_address;
+       ret = i2c_transfer(state->i2c, msg, 2);
+
+       if (ret != 2) {
+               dprintk("%s: error reg=0x%x, ret=%i\n", __FUNCTION__, reg,
+                       ret);
+               return ret;
+       }
+
+       return b1[0];
+}
+
+static int tda10086_write_mask(struct tda10086_state *state, int reg, int mask, int data)
+{
+       int val;
+
+       // read a byte and check
+       val = tda10086_read_byte(state, reg);
+       if (val < 0)
+               return val;
+
+       // mask if off
+       val = val & ~mask;
+       val |= data & 0xff;
+
+       // write it out again
+       return tda10086_write_byte(state, reg, val);
+}
+
+static int tda10086_init(struct dvb_frontend* fe)
+{
+       struct tda10086_state* state = fe->demodulator_priv;
+
+       dprintk ("%s\n", __FUNCTION__);
+
+       // reset
+       tda10086_write_byte(state, 0x00, 0x00);
+       msleep(10);
+
+       // misc setup
+       tda10086_write_byte(state, 0x01, 0x94);
+       tda10086_write_byte(state, 0x02, 0x35); // NOTE: TT drivers appear to disable CSWP
+       tda10086_write_byte(state, 0x03, 0x64);
+       tda10086_write_byte(state, 0x04, 0x43);
+       tda10086_write_byte(state, 0x0c, 0x0c);
+       tda10086_write_byte(state, 0x1b, 0xb0); // noise threshold
+       tda10086_write_byte(state, 0x20, 0x89); // misc
+       tda10086_write_byte(state, 0x30, 0x04); // acquisition period length
+       tda10086_write_byte(state, 0x32, 0x00); // irq off
+       tda10086_write_byte(state, 0x31, 0x56); // setup AFC
+
+       // setup PLL (assumes 16Mhz XIN)
+       tda10086_write_byte(state, 0x55, 0x2c); // misc PLL setup
+       tda10086_write_byte(state, 0x3a, 0x0b); // M=12
+       tda10086_write_byte(state, 0x3b, 0x01); // P=2
+       tda10086_write_mask(state, 0x55, 0x20, 0x00); // powerup PLL
+
+       // setup TS interface
+       tda10086_write_byte(state, 0x11, 0x81);
+       tda10086_write_byte(state, 0x12, 0x81);
+       tda10086_write_byte(state, 0x19, 0x40); // parallel mode A + MSBFIRST
+       tda10086_write_byte(state, 0x56, 0x80); // powerdown WPLL - unused in the mode we use
+       tda10086_write_byte(state, 0x57, 0x08); // bypass WPLL - unused in the mode we use
+       tda10086_write_byte(state, 0x10, 0x2a);
+
+       // setup ADC
+       tda10086_write_byte(state, 0x58, 0x61); // ADC setup
+       tda10086_write_mask(state, 0x58, 0x01, 0x00); // powerup ADC
+
+       // setup AGC
+       tda10086_write_byte(state, 0x05, 0x0B);
+       tda10086_write_byte(state, 0x37, 0x63);
+       tda10086_write_byte(state, 0x3f, 0x03); // NOTE: flydvb uses 0x0a and varies it
+       tda10086_write_byte(state, 0x40, 0x64);
+       tda10086_write_byte(state, 0x41, 0x4f);
+       tda10086_write_byte(state, 0x42, 0x43);
+
+       // setup viterbi
+       tda10086_write_byte(state, 0x1a, 0x11); // VBER 10^6, DVB, QPSK
+
+       // setup carrier recovery
+       tda10086_write_byte(state, 0x3d, 0x80);
+
+       // setup SEC
+       tda10086_write_byte(state, 0x36, 0x00); // all SEC off
+       tda10086_write_byte(state, 0x34, (((1<<19) * (22000/1000)) / (SACLK/1000)));      // } tone frequency
+       tda10086_write_byte(state, 0x35, (((1<<19) * (22000/1000)) / (SACLK/1000)) >> 8); // }
+
+       return 0;
+}
+
+static void tda10086_diseqc_wait(struct tda10086_state *state)
+{
+       unsigned long timeout = jiffies + msecs_to_jiffies(200);
+       while (!(tda10086_read_byte(state, 0x50) & 0x01)) {
+               if(time_after(jiffies, timeout)) {
+                       printk("%s: diseqc queue not ready, command may be lost.\n", __FUNCTION__);
+                       break;
+               }
+               msleep(10);
+       }
+}
+
+static int tda10086_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
+{
+       struct tda10086_state* state = fe->demodulator_priv;
+
+       dprintk ("%s\n", __FUNCTION__);
+
+       switch(tone) {
+       case SEC_TONE_OFF:
+               tda10086_write_byte(state, 0x36, 0x00);
+               break;
+
+       case SEC_TONE_ON:
+               tda10086_write_byte(state, 0x36, 0x01);
+               break;
+       }
+
+       return 0;
+}
+
+static int tda10086_send_master_cmd (struct dvb_frontend* fe,
+                                   struct dvb_diseqc_master_cmd* cmd)
+{
+       struct tda10086_state* state = fe->demodulator_priv;
+       int i;
+       u8 oldval;
+
+       dprintk ("%s\n", __FUNCTION__);
+
+       if (cmd->msg_len > 6)
+               return -EINVAL;
+       oldval = tda10086_read_byte(state, 0x36);
+
+       for(i=0; i< cmd->msg_len; i++) {
+               tda10086_write_byte(state, 0x48+i, cmd->msg[i]);
+       }
+       tda10086_write_byte(state, 0x36, 0x08 | ((cmd->msg_len + 1) << 4));
+
+       tda10086_diseqc_wait(state);
+
+       tda10086_write_byte(state, 0x36, oldval);
+
+       return 0;
+}
+
+static int tda10086_send_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
+{
+       struct tda10086_state* state = fe->demodulator_priv;
+       u8 oldval = tda10086_read_byte(state, 0x36);
+
+       dprintk ("%s\n", __FUNCTION__);
+
+       switch(minicmd) {
+       case SEC_MINI_A:
+               tda10086_write_byte(state, 0x36, 0x04);
+               break;
+
+       case SEC_MINI_B:
+               tda10086_write_byte(state, 0x36, 0x06);
+               break;
+       }
+
+       tda10086_diseqc_wait(state);
+
+       tda10086_write_byte(state, 0x36, oldval);
+
+       return 0;
+}
+
+static int tda10086_set_inversion(struct tda10086_state *state,
+                                 struct dvb_frontend_parameters *fe_params)
+{
+       u8 invval = 0x80;
+
+       dprintk ("%s %i %i\n", __FUNCTION__, fe_params->inversion, state->config->invert);
+
+       switch(fe_params->inversion) {
+       case INVERSION_OFF:
+               if (state->config->invert)
+                       invval = 0x40;
+               break;
+       case INVERSION_ON:
+               if (!state->config->invert)
+                       invval = 0x40;
+               break;
+       case INVERSION_AUTO:
+               invval = 0x00;
+               break;
+       }
+       tda10086_write_mask(state, 0x0c, 0xc0, invval);
+
+       return 0;
+}
+
+static int tda10086_set_symbol_rate(struct tda10086_state *state,
+                                   struct dvb_frontend_parameters *fe_params)
+{
+       u8 dfn = 0;
+       u8 afs = 0;
+       u8 byp = 0;
+       u8 reg37 = 0x43;
+       u8 reg42 = 0x43;
+       u64 big;
+       u32 tmp;
+       u32 bdr;
+       u32 bdri;
+       u32 symbol_rate = fe_params->u.qpsk.symbol_rate;
+
+       dprintk ("%s %i\n", __FUNCTION__, symbol_rate);
+
+       // setup the decimation and anti-aliasing filters..
+       if (symbol_rate < (u32) (SACLK * 0.0137)) {
+               dfn=4;
+               afs=1;
+       } else if (symbol_rate < (u32) (SACLK * 0.0208)) {
+               dfn=4;
+               afs=0;
+       } else if (symbol_rate < (u32) (SACLK * 0.0270)) {
+               dfn=3;
+               afs=1;
+       } else if (symbol_rate < (u32) (SACLK * 0.0416)) {
+               dfn=3;
+               afs=0;
+       } else if (symbol_rate < (u32) (SACLK * 0.0550)) {
+               dfn=2;
+               afs=1;
+       } else if (symbol_rate < (u32) (SACLK * 0.0833)) {
+               dfn=2;
+               afs=0;
+       } else if (symbol_rate < (u32) (SACLK * 0.1100)) {
+               dfn=1;
+               afs=1;
+       } else if (symbol_rate < (u32) (SACLK * 0.1666)) {
+               dfn=1;
+               afs=0;
+       } else if (symbol_rate < (u32) (SACLK * 0.2200)) {
+               dfn=0;
+               afs=1;
+       } else if (symbol_rate < (u32) (SACLK * 0.3333)) {
+               dfn=0;
+               afs=0;
+       } else {
+               reg37 = 0x63;
+               reg42 = 0x4f;
+               byp=1;
+       }
+
+       // calculate BDR
+       big = (1ULL<<21) * ((u64) symbol_rate/1000ULL) * (1ULL<<dfn);
+       big += ((SACLK/1000ULL)-1ULL);
+       do_div(big, (SACLK/1000ULL));
+       bdr = big & 0xfffff;
+
+       // calculate BDRI
+       tmp = (1<<dfn)*(symbol_rate/1000);
+       bdri = ((32 * (SACLK/1000)) + (tmp-1)) / tmp;
+
+       tda10086_write_byte(state, 0x21, (afs << 7) | dfn);
+       tda10086_write_mask(state, 0x20, 0x08, byp << 3);
+       tda10086_write_byte(state, 0x06, bdr);
+       tda10086_write_byte(state, 0x07, bdr >> 8);
+       tda10086_write_byte(state, 0x08, bdr >> 16);
+       tda10086_write_byte(state, 0x09, bdri);
+       tda10086_write_byte(state, 0x37, reg37);
+       tda10086_write_byte(state, 0x42, reg42);
+
+       return 0;
+}
+
+static int tda10086_set_fec(struct tda10086_state *state,
+                           struct dvb_frontend_parameters *fe_params)
+{
+       u8 fecval;
+
+       dprintk ("%s %i\n", __FUNCTION__, fe_params->u.qpsk.fec_inner);
+
+       switch(fe_params->u.qpsk.fec_inner) {
+       case FEC_1_2:
+               fecval = 0x00;
+               break;
+       case FEC_2_3:
+               fecval = 0x01;
+               break;
+       case FEC_3_4:
+               fecval = 0x02;
+               break;
+       case FEC_4_5:
+               fecval = 0x03;
+               break;
+       case FEC_5_6:
+               fecval = 0x04;
+               break;
+       case FEC_6_7:
+               fecval = 0x05;
+               break;
+       case FEC_7_8:
+               fecval = 0x06;
+               break;
+       case FEC_8_9:
+               fecval = 0x07;
+               break;
+       case FEC_AUTO:
+               fecval = 0x08;
+               break;
+       default:
+               return -1;
+       }
+       tda10086_write_byte(state, 0x0d, fecval);
+
+       return 0;
+}
+
+static int tda10086_set_frontend(struct dvb_frontend* fe,
+                                struct dvb_frontend_parameters *fe_params)
+{
+       struct tda10086_state *state = fe->demodulator_priv;
+       int ret;
+       u32 freq = 0;
+       int freqoff;
+
+       dprintk ("%s\n", __FUNCTION__);
+
+       // set params
+       if (fe->ops.tuner_ops.set_params) {
+               fe->ops.tuner_ops.set_params(fe, fe_params);
+               if (fe->ops.i2c_gate_ctrl)
+                       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);
diff --git a/drivers/media/dvb/frontends/tda10086.h b/drivers/media/dvb/frontends/tda10086.h
new file mode 100644 (file)
index 0000000..e8061db
--- /dev/null
@@ -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
diff --git a/drivers/media/dvb/frontends/tda826x.c b/drivers/media/dvb/frontends/tda826x.c
new file mode 100644 (file)
index 0000000..2921eb8
--- /dev/null
@@ -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");
diff --git a/drivers/media/dvb/frontends/tda826x.h b/drivers/media/dvb/frontends/tda826x.h
new file mode 100644 (file)
index 0000000..3307607
--- /dev/null
@@ -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