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linux/drivers/media/dvb/bt8xx/dst.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2 
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

1090 lines
27 KiB
C
Raw Blame History

/*
Frontend-driver for TwinHan DST Frontend
Copyright (C) 2003 Jamie Honan
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/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <asm/div64.h>
#include "dvb_frontend.h"
#include "dst_priv.h"
#include "dst.h"
struct dst_state {
struct i2c_adapter* i2c;
struct bt878* bt;
struct dvb_frontend_ops ops;
/* configuration settings */
const struct dst_config* config;
struct dvb_frontend frontend;
/* private demodulator data */
u8 tx_tuna[10];
u8 rx_tuna[10];
u8 rxbuffer[10];
u8 diseq_flags;
u8 dst_type;
u32 type_flags;
u32 frequency; /* intermediate frequency in kHz for QPSK */
fe_spectral_inversion_t inversion;
u32 symbol_rate; /* symbol rate in Symbols per second */
fe_code_rate_t fec;
fe_sec_voltage_t voltage;
fe_sec_tone_mode_t tone;
u32 decode_freq;
u8 decode_lock;
u16 decode_strength;
u16 decode_snr;
unsigned long cur_jiff;
u8 k22;
fe_bandwidth_t bandwidth;
};
static unsigned int dst_verbose = 0;
module_param(dst_verbose, int, 0644);
MODULE_PARM_DESC(dst_verbose, "verbose startup messages, default is 1 (yes)");
static unsigned int dst_debug = 0;
module_param(dst_debug, int, 0644);
MODULE_PARM_DESC(dst_debug, "debug messages, default is 0 (no)");
#define dprintk if (dst_debug) printk
#define DST_TYPE_IS_SAT 0
#define DST_TYPE_IS_TERR 1
#define DST_TYPE_IS_CABLE 2
#define DST_TYPE_HAS_NEWTUNE 1
#define DST_TYPE_HAS_TS204 2
#define DST_TYPE_HAS_SYMDIV 4
#define HAS_LOCK 1
#define ATTEMPT_TUNE 2
#define HAS_POWER 4
static void dst_packsize(struct dst_state* state, int psize)
{
union dst_gpio_packet bits;
bits.psize = psize;
bt878_device_control(state->bt, DST_IG_TS, &bits);
}
static int dst_gpio_outb(struct dst_state* state, u32 mask, u32 enbb, u32 outhigh)
{
union dst_gpio_packet enb;
union dst_gpio_packet bits;
int err;
enb.enb.mask = mask;
enb.enb.enable = enbb;
if ((err = bt878_device_control(state->bt, DST_IG_ENABLE, &enb)) < 0) {
dprintk("%s: dst_gpio_enb error (err == %i, mask == 0x%02x, enb == 0x%02x)\n", __FUNCTION__, err, mask, enbb);
return -EREMOTEIO;
}
/* because complete disabling means no output, no need to do output packet */
if (enbb == 0)
return 0;
bits.outp.mask = enbb;
bits.outp.highvals = outhigh;
if ((err = bt878_device_control(state->bt, DST_IG_WRITE, &bits)) < 0) {
dprintk("%s: dst_gpio_outb error (err == %i, enbb == 0x%02x, outhigh == 0x%02x)\n", __FUNCTION__, err, enbb, outhigh);
return -EREMOTEIO;
}
return 0;
}
static int dst_gpio_inb(struct dst_state *state, u8 * result)
{
union dst_gpio_packet rd_packet;
int err;
*result = 0;
if ((err = bt878_device_control(state->bt, DST_IG_READ, &rd_packet)) < 0) {
dprintk("%s: dst_gpio_inb error (err == %i)\n", __FUNCTION__, err);
return -EREMOTEIO;
}
*result = (u8) rd_packet.rd.value;
return 0;
}
#define DST_I2C_ENABLE 1
#define DST_8820 2
static int dst_reset8820(struct dst_state *state)
{
int retval;
/* pull 8820 gpio pin low, wait, high, wait, then low */
// dprintk ("%s: reset 8820\n", __FUNCTION__);
retval = dst_gpio_outb(state, DST_8820, DST_8820, 0);
if (retval < 0)
return retval;
msleep(10);
retval = dst_gpio_outb(state, DST_8820, DST_8820, DST_8820);
if (retval < 0)
return retval;
/* wait for more feedback on what works here *
msleep(10);
retval = dst_gpio_outb(dst, DST_8820, DST_8820, 0);
if (retval < 0)
return retval;
*/
return 0;
}
static int dst_i2c_enable(struct dst_state *state)
{
int retval;
/* pull I2C enable gpio pin low, wait */
// dprintk ("%s: i2c enable\n", __FUNCTION__);
retval = dst_gpio_outb(state, ~0, DST_I2C_ENABLE, 0);
if (retval < 0)
return retval;
// dprintk ("%s: i2c enable delay\n", __FUNCTION__);
msleep(33);
return 0;
}
static int dst_i2c_disable(struct dst_state *state)
{
int retval;
/* release I2C enable gpio pin, wait */
// dprintk ("%s: i2c disable\n", __FUNCTION__);
retval = dst_gpio_outb(state, ~0, 0, 0);
if (retval < 0)
return retval;
// dprintk ("%s: i2c disable delay\n", __FUNCTION__);
msleep(33);
return 0;
}
static int dst_wait_dst_ready(struct dst_state *state)
{
u8 reply;
int retval;
int i;
for (i = 0; i < 200; i++) {
retval = dst_gpio_inb(state, &reply);
if (retval < 0)
return retval;
if ((reply & DST_I2C_ENABLE) == 0) {
dprintk("%s: dst wait ready after %d\n", __FUNCTION__, i);
return 1;
}
msleep(10);
}
dprintk("%s: dst wait NOT ready after %d\n", __FUNCTION__, i);
return 0;
}
static int write_dst(struct dst_state *state, u8 * data, u8 len)
{
struct i2c_msg msg = {
.addr = state->config->demod_address,.flags = 0,.buf = data,.len = len
};
int err;
int cnt;
if (dst_debug && dst_verbose) {
u8 i;
dprintk("%s writing", __FUNCTION__);
for (i = 0; i < len; i++) {
dprintk(" 0x%02x", data[i]);
}
dprintk("\n");
}
msleep(30);
for (cnt = 0; cnt < 4; cnt++) {
if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
dprintk("%s: write_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, data[0]);
dst_i2c_disable(state);
msleep(500);
dst_i2c_enable(state);
msleep(500);
continue;
} else
break;
}
if (cnt >= 4)
return -EREMOTEIO;
return 0;
}
static int read_dst(struct dst_state *state, u8 * ret, u8 len)
{
struct i2c_msg msg = {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = ret,.len = len };
int err;
int cnt;
for (cnt = 0; cnt < 4; cnt++) {
if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
dprintk("%s: read_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, ret[0]);
dst_i2c_disable(state);
dst_i2c_enable(state);
continue;
} else
break;
}
if (cnt >= 4)
return -EREMOTEIO;
dprintk("%s reply is 0x%x\n", __FUNCTION__, ret[0]);
if (dst_debug && dst_verbose) {
for (err = 1; err < len; err++)
dprintk(" 0x%x", ret[err]);
if (err > 1)
dprintk("\n");
}
return 0;
}
static int dst_set_freq(struct dst_state *state, u32 freq)
{
u8 *val;
state->frequency = freq;
// dprintk("%s: set frequency %u\n", __FUNCTION__, freq);
if (state->dst_type == DST_TYPE_IS_SAT) {
freq = freq / 1000;
if (freq < 950 || freq > 2150)
return -EINVAL;
val = &state->tx_tuna[0];
val[2] = (freq >> 8) & 0x7f;
val[3] = (u8) freq;
val[4] = 1;
val[8] &= ~4;
if (freq < 1531)
val[8] |= 4;
} else if (state->dst_type == DST_TYPE_IS_TERR) {
freq = freq / 1000;
if (freq < 137000 || freq > 858000)
return -EINVAL;
val = &state->tx_tuna[0];
val[2] = (freq >> 16) & 0xff;
val[3] = (freq >> 8) & 0xff;
val[4] = (u8) freq;
val[5] = 0;
switch (state->bandwidth) {
case BANDWIDTH_6_MHZ:
val[6] = 6;
break;
case BANDWIDTH_7_MHZ:
case BANDWIDTH_AUTO:
val[6] = 7;
break;
case BANDWIDTH_8_MHZ:
val[6] = 8;
break;
}
val[7] = 0;
val[8] = 0;
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
/* guess till will get one */
freq = freq / 1000;
val = &state->tx_tuna[0];
val[2] = (freq >> 16) & 0xff;
val[3] = (freq >> 8) & 0xff;
val[4] = (u8) freq;
} else
return -EINVAL;
return 0;
}
static int dst_set_bandwidth(struct dst_state* state, fe_bandwidth_t bandwidth)
{
u8 *val;
state->bandwidth = bandwidth;
if (state->dst_type != DST_TYPE_IS_TERR)
return 0;
val = &state->tx_tuna[0];
switch (bandwidth) {
case BANDWIDTH_6_MHZ:
val[6] = 6;
break;
case BANDWIDTH_7_MHZ:
val[6] = 7;
break;
case BANDWIDTH_8_MHZ:
val[6] = 8;
break;
default:
return -EINVAL;
}
return 0;
}
static int dst_set_inversion(struct dst_state* state, fe_spectral_inversion_t inversion)
{
u8 *val;
state->inversion = inversion;
val = &state->tx_tuna[0];
val[8] &= ~0x80;
switch (inversion) {
case INVERSION_OFF:
break;
case INVERSION_ON:
val[8] |= 0x80;
break;
default:
return -EINVAL;
}
return 0;
}
static int dst_set_fec(struct dst_state* state, fe_code_rate_t fec)
{
state->fec = fec;
return 0;
}
static fe_code_rate_t dst_get_fec(struct dst_state* state)
{
return state->fec;
}
static int dst_set_symbolrate(struct dst_state* state, u32 srate)
{
u8 *val;
u32 symcalc;
u64 sval;
state->symbol_rate = srate;
if (state->dst_type == DST_TYPE_IS_TERR) {
return 0;
}
// dprintk("%s: set srate %u\n", __FUNCTION__, srate);
srate /= 1000;
val = &state->tx_tuna[0];
if (state->type_flags & DST_TYPE_HAS_SYMDIV) {
sval = srate;
sval <<= 20;
do_div(sval, 88000);
symcalc = (u32) sval;
// dprintk("%s: set symcalc %u\n", __FUNCTION__, symcalc);
val[5] = (u8) (symcalc >> 12);
val[6] = (u8) (symcalc >> 4);
val[7] = (u8) (symcalc << 4);
} else {
val[5] = (u8) (srate >> 16) & 0x7f;
val[6] = (u8) (srate >> 8);
val[7] = (u8) srate;
}
val[8] &= ~0x20;
if (srate > 8000)
val[8] |= 0x20;
return 0;
}
static u8 dst_check_sum(u8 * buf, u32 len)
{
u32 i;
u8 val = 0;
if (!len)
return 0;
for (i = 0; i < len; i++) {
val += buf[i];
}
return ((~val) + 1);
}
struct dst_types {
char *mstr;
int offs;
u8 dst_type;
u32 type_flags;
};
static struct dst_types dst_tlist[] = {
{"DST-020", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
{"DST-030", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
{"DST-03T", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_TS204},
{"DST-MOT", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
{"DST-CI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
{"DSTMCI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
{"DSTFCI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
{"DCTNEW", 1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE},
{"DCT-CI", 1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE | DST_TYPE_HAS_TS204},
{"DTTDIG", 1, DST_TYPE_IS_TERR, 0}
};
/* DCTNEW and DCT-CI are guesses */
static void dst_type_flags_print(u32 type_flags)
{
printk("DST type flags :");
if (type_flags & DST_TYPE_HAS_NEWTUNE)
printk(" 0x%x newtuner", DST_TYPE_HAS_NEWTUNE);
if (type_flags & DST_TYPE_HAS_TS204)
printk(" 0x%x ts204", DST_TYPE_HAS_TS204);
if (type_flags & DST_TYPE_HAS_SYMDIV)
printk(" 0x%x symdiv", DST_TYPE_HAS_SYMDIV);
printk("\n");
}
static int dst_type_print(u8 type)
{
char *otype;
switch (type) {
case DST_TYPE_IS_SAT:
otype = "satellite";
break;
case DST_TYPE_IS_TERR:
otype = "terrestrial";
break;
case DST_TYPE_IS_CABLE:
otype = "cable";
break;
default:
printk("%s: invalid dst type %d\n", __FUNCTION__, type);
return -EINVAL;
}
printk("DST type : %s\n", otype);
return 0;
}
static int dst_check_ci(struct dst_state *state)
{
u8 txbuf[8];
u8 rxbuf[8];
int retval;
int i;
struct dst_types *dsp;
u8 use_dst_type;
u32 use_type_flags;
memset(txbuf, 0, sizeof(txbuf));
txbuf[1] = 6;
txbuf[7] = dst_check_sum(txbuf, 7);
dst_i2c_enable(state);
dst_reset8820(state);
retval = write_dst(state, txbuf, 8);
if (retval < 0) {
dst_i2c_disable(state);
dprintk("%s: write not successful, maybe no card?\n", __FUNCTION__);
return retval;
}
msleep(3);
retval = read_dst(state, rxbuf, 1);
dst_i2c_disable(state);
if (retval < 0) {
dprintk("%s: read not successful, maybe no card?\n", __FUNCTION__);
return retval;
}
if (rxbuf[0] != 0xff) {
dprintk("%s: write reply not 0xff, not ci (%02x)\n", __FUNCTION__, rxbuf[0]);
return retval;
}
if (!dst_wait_dst_ready(state))
return 0;
// dst_i2c_enable(i2c); Dimitri
retval = read_dst(state, rxbuf, 8);
dst_i2c_disable(state);
if (retval < 0) {
dprintk("%s: read not successful\n", __FUNCTION__);
return retval;
}
if (rxbuf[7] != dst_check_sum(rxbuf, 7)) {
dprintk("%s: checksum failure\n", __FUNCTION__);
return retval;
}
rxbuf[7] = '\0';
for (i = 0, dsp = &dst_tlist[0]; i < sizeof(dst_tlist) / sizeof(dst_tlist[0]); i++, dsp++) {
if (!strncmp(&rxbuf[dsp->offs], dsp->mstr, strlen(dsp->mstr))) {
use_type_flags = dsp->type_flags;
use_dst_type = dsp->dst_type;
printk("%s: recognize %s\n", __FUNCTION__, dsp->mstr);
break;
}
}
if (i >= sizeof(dst_tlist) / sizeof(dst_tlist[0])) {
printk("%s: unable to recognize %s or %s\n", __FUNCTION__, &rxbuf[0], &rxbuf[1]);
printk("%s please email linux-dvb@linuxtv.org with this type in\n", __FUNCTION__);
use_dst_type = DST_TYPE_IS_SAT;
use_type_flags = DST_TYPE_HAS_SYMDIV;
}
dst_type_print(use_dst_type);
state->type_flags = use_type_flags;
state->dst_type = use_dst_type;
dst_type_flags_print(state->type_flags);
if (state->type_flags & DST_TYPE_HAS_TS204) {
dst_packsize(state, 204);
}
return 0;
}
static int dst_command(struct dst_state* state, u8 * data, u8 len)
{
int retval;
u8 reply;
dst_i2c_enable(state);
dst_reset8820(state);
retval = write_dst(state, data, len);
if (retval < 0) {
dst_i2c_disable(state);
dprintk("%s: write not successful\n", __FUNCTION__);
return retval;
}
msleep(33);
retval = read_dst(state, &reply, 1);
dst_i2c_disable(state);
if (retval < 0) {
dprintk("%s: read verify not successful\n", __FUNCTION__);
return retval;
}
if (reply != 0xff) {
dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
return 0;
}
if (len >= 2 && data[0] == 0 && (data[1] == 1 || data[1] == 3))
return 0;
if (!dst_wait_dst_ready(state))
return 0;
// dst_i2c_enable(i2c); Per dimitri
retval = read_dst(state, state->rxbuffer, 8);
dst_i2c_disable(state);
if (retval < 0) {
dprintk("%s: read not successful\n", __FUNCTION__);
return 0;
}
if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
dprintk("%s: checksum failure\n", __FUNCTION__);
return 0;
}
return 0;
}
static int dst_get_signal(struct dst_state* state)
{
int retval;
u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
state->decode_lock = state->decode_strength = state->decode_snr = 0;
return 0;
}
if (0 == (state->diseq_flags & HAS_LOCK)) {
state->decode_lock = state->decode_strength = state->decode_snr = 0;
return 0;
}
if (time_after_eq(jiffies, state->cur_jiff + (HZ / 5))) {
retval = dst_command(state, get_signal, 8);
if (retval < 0)
return retval;
if (state->dst_type == DST_TYPE_IS_SAT) {
state->decode_lock = ((state->rxbuffer[6] & 0x10) == 0) ? 1 : 0;
state->decode_strength = state->rxbuffer[5] << 8;
state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
} else if ((state->dst_type == DST_TYPE_IS_TERR) || (state->dst_type == DST_TYPE_IS_CABLE)) {
state->decode_lock = (state->rxbuffer[1]) ? 1 : 0;
state->decode_strength = state->rxbuffer[4] << 8;
state->decode_snr = state->rxbuffer[3] << 8;
}
state->cur_jiff = jiffies;
}
return 0;
}
static int dst_tone_power_cmd(struct dst_state* state)
{
u8 paket[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 };
if (state->dst_type == DST_TYPE_IS_TERR)
return 0;
if (state->voltage == SEC_VOLTAGE_OFF)
paket[4] = 0;
else
paket[4] = 1;
if (state->tone == SEC_TONE_ON)
paket[2] = state->k22;
else
paket[2] = 0;
paket[7] = dst_check_sum(&paket[0], 7);
dst_command(state, paket, 8);
return 0;
}
static int dst_get_tuna(struct dst_state* state)
{
int retval;
if ((state->diseq_flags & ATTEMPT_TUNE) == 0)
return 0;
state->diseq_flags &= ~(HAS_LOCK);
if (!dst_wait_dst_ready(state))
return 0;
if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
/* how to get variable length reply ???? */
retval = read_dst(state, state->rx_tuna, 10);
} else {
retval = read_dst(state, &state->rx_tuna[2], 8);
}
if (retval < 0) {
dprintk("%s: read not successful\n", __FUNCTION__);
return 0;
}
if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[0], 9)) {
dprintk("%s: checksum failure?\n", __FUNCTION__);
return 0;
}
} else {
if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[2], 7)) {
dprintk("%s: checksum failure?\n", __FUNCTION__);
return 0;
}
}
if (state->rx_tuna[2] == 0 && state->rx_tuna[3] == 0)
return 0;
state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];
state->decode_lock = 1;
/*
dst->decode_n1 = (dst->rx_tuna[4] << 8) +
(dst->rx_tuna[5]);
dst->decode_n2 = (dst->rx_tuna[8] << 8) +
(dst->rx_tuna[7]);
*/
state->diseq_flags |= HAS_LOCK;
/* dst->cur_jiff = jiffies; */
return 1;
}
static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
static int dst_write_tuna(struct dvb_frontend* fe)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
int retval;
u8 reply;
dprintk("%s: type_flags 0x%x \n", __FUNCTION__, state->type_flags);
state->decode_freq = 0;
state->decode_lock = state->decode_strength = state->decode_snr = 0;
if (state->dst_type == DST_TYPE_IS_SAT) {
if (!(state->diseq_flags & HAS_POWER))
dst_set_voltage(fe, SEC_VOLTAGE_13);
}
state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
dst_i2c_enable(state);
if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
dst_reset8820(state);
state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
retval = write_dst(state, &state->tx_tuna[0], 10);
} else {
state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
retval = write_dst(state, &state->tx_tuna[2], 8);
}
if (retval < 0) {
dst_i2c_disable(state);
dprintk("%s: write not successful\n", __FUNCTION__);
return retval;
}
msleep(3);
retval = read_dst(state, &reply, 1);
dst_i2c_disable(state);
if (retval < 0) {
dprintk("%s: read verify not successful\n", __FUNCTION__);
return retval;
}
if (reply != 0xff) {
dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
return 0;
}
state->diseq_flags |= ATTEMPT_TUNE;
return dst_get_tuna(state);
}
/*
* line22k0 0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
* line22k1 0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
* line22k2 0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
* tone 0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
* data 0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
* power_off 0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
* power_on 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
* Diseqc 1 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
* Diseqc 2 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
* Diseqc 3 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
* Diseqc 4 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
*/
static int dst_set_diseqc(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
if (state->dst_type == DST_TYPE_IS_TERR)
return 0;
if (cmd->msg_len == 0 || cmd->msg_len > 4)
return -EINVAL;
memcpy(&paket[3], cmd->msg, cmd->msg_len);
paket[7] = dst_check_sum(&paket[0], 7);
dst_command(state, paket, 8);
return 0;
}
static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
{
u8 *val;
int need_cmd;
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
state->voltage = voltage;
if (state->dst_type == DST_TYPE_IS_TERR)
return 0;
need_cmd = 0;
val = &state->tx_tuna[0];
val[8] &= ~0x40;
switch (voltage) {
case SEC_VOLTAGE_13:
if ((state->diseq_flags & HAS_POWER) == 0)
need_cmd = 1;
state->diseq_flags |= HAS_POWER;
break;
case SEC_VOLTAGE_18:
if ((state->diseq_flags & HAS_POWER) == 0)
need_cmd = 1;
state->diseq_flags |= HAS_POWER;
val[8] |= 0x40;
break;
case SEC_VOLTAGE_OFF:
need_cmd = 1;
state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
break;
default:
return -EINVAL;
}
if (need_cmd) {
dst_tone_power_cmd(state);
}
return 0;
}
static int dst_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
u8 *val;
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
state->tone = tone;
if (state->dst_type == DST_TYPE_IS_TERR)
return 0;
val = &state->tx_tuna[0];
val[8] &= ~0x1;
switch (tone) {
case SEC_TONE_OFF:
break;
case SEC_TONE_ON:
val[8] |= 1;
break;
default:
return -EINVAL;
}
dst_tone_power_cmd(state);
return 0;
}
static int dst_init(struct dvb_frontend* fe)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
static u8 ini_satci_tuna[] = { 9, 0, 3, 0xb6, 1, 0, 0x73, 0x21, 0, 0 };
static u8 ini_satfta_tuna[] = { 0, 0, 3, 0xb6, 1, 0x55, 0xbd, 0x50, 0, 0 };
static u8 ini_tvfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
static u8 ini_tvci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
static u8 ini_cabfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
static u8 ini_cabci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
state->inversion = INVERSION_ON;
state->voltage = SEC_VOLTAGE_13;
state->tone = SEC_TONE_OFF;
state->symbol_rate = 29473000;
state->fec = FEC_AUTO;
state->diseq_flags = 0;
state->k22 = 0x02;
state->bandwidth = BANDWIDTH_7_MHZ;
state->cur_jiff = jiffies;
if (state->dst_type == DST_TYPE_IS_SAT) {
state->frequency = 950000;
memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_satci_tuna : ini_satfta_tuna), sizeof(ini_satfta_tuna));
} else if (state->dst_type == DST_TYPE_IS_TERR) {
state->frequency = 137000000;
memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_tvci_tuna : ini_tvfta_tuna), sizeof(ini_tvfta_tuna));
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
state->frequency = 51000000;
memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_cabci_tuna : ini_cabfta_tuna), sizeof(ini_cabfta_tuna));
}
return 0;
}
static int dst_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
*status = 0;
if (state->diseq_flags & HAS_LOCK) {
dst_get_signal(state);
if (state->decode_lock)
*status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
}
return 0;
}
static int dst_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
dst_get_signal(state);
*strength = state->decode_strength;
return 0;
}
static int dst_read_snr(struct dvb_frontend* fe, u16* snr)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
dst_get_signal(state);
*snr = state->decode_snr;
return 0;
}
static int dst_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
dst_set_freq(state, p->frequency);
dst_set_inversion(state, p->inversion);
if (state->dst_type == DST_TYPE_IS_SAT) {
dst_set_fec(state, p->u.qpsk.fec_inner);
dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
} else if (state->dst_type == DST_TYPE_IS_TERR) {
dst_set_bandwidth(state, p->u.ofdm.bandwidth);
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
dst_set_fec(state, p->u.qam.fec_inner);
dst_set_symbolrate(state, p->u.qam.symbol_rate);
}
dst_write_tuna(fe);
return 0;
}
static int dst_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
p->frequency = state->decode_freq;
p->inversion = state->inversion;
if (state->dst_type == DST_TYPE_IS_SAT) {
p->u.qpsk.symbol_rate = state->symbol_rate;
p->u.qpsk.fec_inner = dst_get_fec(state);
} else if (state->dst_type == DST_TYPE_IS_TERR) {
p->u.ofdm.bandwidth = state->bandwidth;
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
p->u.qam.symbol_rate = state->symbol_rate;
p->u.qam.fec_inner = dst_get_fec(state);
p->u.qam.modulation = QAM_AUTO;
}
return 0;
}
static void dst_release(struct dvb_frontend* fe)
{
struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
kfree(state);
}
static struct dvb_frontend_ops dst_dvbt_ops;
static struct dvb_frontend_ops dst_dvbs_ops;
static struct dvb_frontend_ops dst_dvbc_ops;
struct dvb_frontend* dst_attach(const struct dst_config* config,
struct i2c_adapter* i2c,
struct bt878 *bt)
{
struct dst_state* state = NULL;
/* allocate memory for the internal state */
state = (struct dst_state*) kmalloc(sizeof(struct dst_state), GFP_KERNEL);
if (state == NULL) goto error;
/* setup the state */
state->config = config;
state->i2c = i2c;
state->bt = bt;
/* check if the demod is there */
if (dst_check_ci(state) < 0) goto error;
/* determine settings based on type */
switch (state->dst_type) {
case DST_TYPE_IS_TERR:
memcpy(&state->ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
break;
case DST_TYPE_IS_CABLE:
memcpy(&state->ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
break;
case DST_TYPE_IS_SAT:
memcpy(&state->ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
break;
default:
printk("dst: unknown frontend type. please report to the LinuxTV.org DVB mailinglist.\n");
goto error;
}
/* create dvb_frontend */
state->frontend.ops = &state->ops;
state->frontend.demodulator_priv = state;
return &state->frontend;
error:
kfree(state);
return NULL;
}
static struct dvb_frontend_ops dst_dvbt_ops = {
.info = {
.name = "DST DVB-T",
.type = FE_OFDM,
.frequency_min = 137000000,
.frequency_max = 858000000,
.frequency_stepsize = 166667,
.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
},
.release = dst_release,
.init = dst_init,
.set_frontend = dst_set_frontend,
.get_frontend = dst_get_frontend,
.read_status = dst_read_status,
.read_signal_strength = dst_read_signal_strength,
.read_snr = dst_read_snr,
};
static struct dvb_frontend_ops dst_dvbs_ops = {
.info = {
.name = "DST DVB-S",
.type = FE_QPSK,
.frequency_min = 950000,
.frequency_max = 2150000,
.frequency_stepsize = 1000, /* kHz for QPSK frontends */
.frequency_tolerance = 29500,
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
/* . symbol_rate_tolerance = ???,*/
.caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
},
.release = dst_release,
.init = dst_init,
.set_frontend = dst_set_frontend,
.get_frontend = dst_get_frontend,
.read_status = dst_read_status,
.read_signal_strength = dst_read_signal_strength,
.read_snr = dst_read_snr,
.diseqc_send_master_cmd = dst_set_diseqc,
.set_voltage = dst_set_voltage,
.set_tone = dst_set_tone,
};
static struct dvb_frontend_ops dst_dvbc_ops = {
.info = {
.name = "DST DVB-C",
.type = FE_QAM,
.frequency_stepsize = 62500,
.frequency_min = 51000000,
.frequency_max = 858000000,
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
/* . symbol_rate_tolerance = ???,*/
.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO
},
.release = dst_release,
.init = dst_init,
.set_frontend = dst_set_frontend,
.get_frontend = dst_get_frontend,
.read_status = dst_read_status,
.read_signal_strength = dst_read_signal_strength,
.read_snr = dst_read_snr,
};
MODULE_DESCRIPTION("DST DVB-S/T/C Combo Frontend driver");
MODULE_AUTHOR("Jamie Honan");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(dst_attach);
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