forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
754 lines
18 KiB
754 lines
18 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
|
Driver for ST STV0299 demodulator |
|
|
|
Copyright (C) 2001-2002 Convergence Integrated Media GmbH |
|
<[email protected]>, |
|
<[email protected]>, |
|
<[email protected]> |
|
|
|
|
|
Philips SU1278/SH |
|
|
|
Copyright (C) 2002 by Peter Schildmann <[email protected]> |
|
|
|
|
|
LG TDQF-S001F |
|
|
|
Copyright (C) 2002 Felix Domke <[email protected]> |
|
& Andreas Oberritter <[email protected]> |
|
|
|
|
|
Support for Samsung TBMU24112IMB used on Technisat SkyStar2 rev. 2.6B |
|
|
|
Copyright (C) 2003 Vadim Catana <[email protected]>: |
|
|
|
Support for Philips SU1278 on Technotrend hardware |
|
|
|
Copyright (C) 2004 Andrew de Quincey <[email protected]> |
|
|
|
|
|
*/ |
|
|
|
#include <linux/init.h> |
|
#include <linux/kernel.h> |
|
#include <linux/ktime.h> |
|
#include <linux/module.h> |
|
#include <linux/string.h> |
|
#include <linux/slab.h> |
|
#include <linux/jiffies.h> |
|
#include <asm/div64.h> |
|
|
|
#include <media/dvb_frontend.h> |
|
#include "stv0299.h" |
|
|
|
struct stv0299_state { |
|
struct i2c_adapter* i2c; |
|
const struct stv0299_config* config; |
|
struct dvb_frontend frontend; |
|
|
|
u8 initialised:1; |
|
u32 tuner_frequency; |
|
u32 symbol_rate; |
|
enum fe_code_rate fec_inner; |
|
int errmode; |
|
u32 ucblocks; |
|
u8 mcr_reg; |
|
}; |
|
|
|
#define STATUS_BER 0 |
|
#define STATUS_UCBLOCKS 1 |
|
|
|
static int debug; |
|
static int debug_legacy_dish_switch; |
|
#define dprintk(args...) \ |
|
do { \ |
|
if (debug) printk(KERN_DEBUG "stv0299: " args); \ |
|
} while (0) |
|
|
|
|
|
static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data) |
|
{ |
|
int ret; |
|
u8 buf [] = { reg, data }; |
|
struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; |
|
|
|
ret = i2c_transfer (state->i2c, &msg, 1); |
|
|
|
if (ret != 1) |
|
dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n", |
|
__func__, reg, data, ret); |
|
|
|
return (ret != 1) ? -EREMOTEIO : 0; |
|
} |
|
|
|
static int stv0299_write(struct dvb_frontend* fe, const u8 buf[], int len) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
if (len != 2) |
|
return -EINVAL; |
|
|
|
return stv0299_writeregI(state, buf[0], buf[1]); |
|
} |
|
|
|
static u8 stv0299_readreg (struct stv0299_state* state, u8 reg) |
|
{ |
|
int ret; |
|
u8 b0 [] = { reg }; |
|
u8 b1 [] = { 0 }; |
|
struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, |
|
{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; |
|
|
|
ret = i2c_transfer (state->i2c, msg, 2); |
|
|
|
if (ret != 2) |
|
dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", |
|
__func__, reg, ret); |
|
|
|
return b1[0]; |
|
} |
|
|
|
static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len) |
|
{ |
|
int ret; |
|
struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 }, |
|
{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } }; |
|
|
|
ret = i2c_transfer (state->i2c, msg, 2); |
|
|
|
if (ret != 2) |
|
dprintk("%s: readreg error (ret == %i)\n", __func__, ret); |
|
|
|
return ret == 2 ? 0 : ret; |
|
} |
|
|
|
static int stv0299_set_FEC(struct stv0299_state *state, enum fe_code_rate fec) |
|
{ |
|
dprintk ("%s\n", __func__); |
|
|
|
switch (fec) { |
|
case FEC_AUTO: |
|
{ |
|
return stv0299_writeregI (state, 0x31, 0x1f); |
|
} |
|
case FEC_1_2: |
|
{ |
|
return stv0299_writeregI (state, 0x31, 0x01); |
|
} |
|
case FEC_2_3: |
|
{ |
|
return stv0299_writeregI (state, 0x31, 0x02); |
|
} |
|
case FEC_3_4: |
|
{ |
|
return stv0299_writeregI (state, 0x31, 0x04); |
|
} |
|
case FEC_5_6: |
|
{ |
|
return stv0299_writeregI (state, 0x31, 0x08); |
|
} |
|
case FEC_7_8: |
|
{ |
|
return stv0299_writeregI (state, 0x31, 0x10); |
|
} |
|
default: |
|
{ |
|
return -EINVAL; |
|
} |
|
} |
|
} |
|
|
|
static enum fe_code_rate stv0299_get_fec(struct stv0299_state *state) |
|
{ |
|
static enum fe_code_rate fec_tab[] = { FEC_2_3, FEC_3_4, FEC_5_6, |
|
FEC_7_8, FEC_1_2 }; |
|
u8 index; |
|
|
|
dprintk ("%s\n", __func__); |
|
|
|
index = stv0299_readreg (state, 0x1b); |
|
index &= 0x7; |
|
|
|
if (index > 4) |
|
return FEC_AUTO; |
|
|
|
return fec_tab [index]; |
|
} |
|
|
|
static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout) |
|
{ |
|
unsigned long start = jiffies; |
|
|
|
dprintk ("%s\n", __func__); |
|
|
|
while (stv0299_readreg(state, 0x0a) & 1) { |
|
if (jiffies - start > timeout) { |
|
dprintk ("%s: timeout!!\n", __func__); |
|
return -ETIMEDOUT; |
|
} |
|
msleep(10); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout) |
|
{ |
|
unsigned long start = jiffies; |
|
|
|
dprintk ("%s\n", __func__); |
|
|
|
while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) { |
|
if (jiffies - start > timeout) { |
|
dprintk ("%s: timeout!!\n", __func__); |
|
return -ETIMEDOUT; |
|
} |
|
msleep(10); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
u64 big = srate; |
|
u32 ratio; |
|
|
|
// check rate is within limits |
|
if ((srate < 1000000) || (srate > 45000000)) return -EINVAL; |
|
|
|
// calculate value to program |
|
big = big << 20; |
|
big += (state->config->mclk-1); // round correctly |
|
do_div(big, state->config->mclk); |
|
ratio = big << 4; |
|
|
|
return state->config->set_symbol_rate(fe, srate, ratio); |
|
} |
|
|
|
static int stv0299_get_symbolrate (struct stv0299_state* state) |
|
{ |
|
u32 Mclk = state->config->mclk / 4096L; |
|
u32 srate; |
|
s32 offset; |
|
u8 sfr[3]; |
|
s8 rtf; |
|
|
|
dprintk ("%s\n", __func__); |
|
|
|
stv0299_readregs (state, 0x1f, sfr, 3); |
|
stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1); |
|
|
|
srate = (sfr[0] << 8) | sfr[1]; |
|
srate *= Mclk; |
|
srate /= 16; |
|
srate += (sfr[2] >> 4) * Mclk / 256; |
|
offset = (s32) rtf * (srate / 4096L); |
|
offset /= 128; |
|
|
|
dprintk ("%s : srate = %i\n", __func__, srate); |
|
dprintk ("%s : ofset = %i\n", __func__, offset); |
|
|
|
srate += offset; |
|
|
|
srate += 1000; |
|
srate /= 2000; |
|
srate *= 2000; |
|
|
|
return srate; |
|
} |
|
|
|
static int stv0299_send_diseqc_msg (struct dvb_frontend* fe, |
|
struct dvb_diseqc_master_cmd *m) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
u8 val; |
|
int i; |
|
|
|
dprintk ("%s\n", __func__); |
|
|
|
if (stv0299_wait_diseqc_idle (state, 100) < 0) |
|
return -ETIMEDOUT; |
|
|
|
val = stv0299_readreg (state, 0x08); |
|
|
|
if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */ |
|
return -EREMOTEIO; |
|
|
|
for (i=0; i<m->msg_len; i++) { |
|
if (stv0299_wait_diseqc_fifo (state, 100) < 0) |
|
return -ETIMEDOUT; |
|
|
|
if (stv0299_writeregI (state, 0x09, m->msg[i])) |
|
return -EREMOTEIO; |
|
} |
|
|
|
if (stv0299_wait_diseqc_idle (state, 100) < 0) |
|
return -ETIMEDOUT; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_send_diseqc_burst(struct dvb_frontend *fe, |
|
enum fe_sec_mini_cmd burst) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
u8 val; |
|
|
|
dprintk ("%s\n", __func__); |
|
|
|
if (stv0299_wait_diseqc_idle (state, 100) < 0) |
|
return -ETIMEDOUT; |
|
|
|
val = stv0299_readreg (state, 0x08); |
|
|
|
if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */ |
|
return -EREMOTEIO; |
|
|
|
if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff)) |
|
return -EREMOTEIO; |
|
|
|
if (stv0299_wait_diseqc_idle (state, 100) < 0) |
|
return -ETIMEDOUT; |
|
|
|
if (stv0299_writeregI (state, 0x08, val)) |
|
return -EREMOTEIO; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_set_tone(struct dvb_frontend *fe, |
|
enum fe_sec_tone_mode tone) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
u8 val; |
|
|
|
if (stv0299_wait_diseqc_idle (state, 100) < 0) |
|
return -ETIMEDOUT; |
|
|
|
val = stv0299_readreg (state, 0x08); |
|
|
|
switch (tone) { |
|
case SEC_TONE_ON: |
|
return stv0299_writeregI (state, 0x08, val | 0x3); |
|
|
|
case SEC_TONE_OFF: |
|
return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02); |
|
|
|
default: |
|
return -EINVAL; |
|
} |
|
} |
|
|
|
static int stv0299_set_voltage(struct dvb_frontend *fe, |
|
enum fe_sec_voltage voltage) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
u8 reg0x08; |
|
u8 reg0x0c; |
|
|
|
dprintk("%s: %s\n", __func__, |
|
voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : |
|
voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??"); |
|
|
|
reg0x08 = stv0299_readreg (state, 0x08); |
|
reg0x0c = stv0299_readreg (state, 0x0c); |
|
|
|
/* |
|
* H/V switching over OP0, OP1 and OP2 are LNB power enable bits |
|
*/ |
|
reg0x0c &= 0x0f; |
|
reg0x08 = (reg0x08 & 0x3f) | (state->config->lock_output << 6); |
|
|
|
switch (voltage) { |
|
case SEC_VOLTAGE_13: |
|
if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) |
|
reg0x0c |= 0x10; /* OP1 off, OP0 on */ |
|
else |
|
reg0x0c |= 0x40; /* OP1 on, OP0 off */ |
|
break; |
|
case SEC_VOLTAGE_18: |
|
reg0x0c |= 0x50; /* OP1 on, OP0 on */ |
|
break; |
|
case SEC_VOLTAGE_OFF: |
|
/* LNB power off! */ |
|
reg0x08 = 0x00; |
|
reg0x0c = 0x00; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
if (state->config->op0_off) |
|
reg0x0c &= ~0x10; |
|
|
|
stv0299_writeregI(state, 0x08, reg0x08); |
|
return stv0299_writeregI(state, 0x0c, reg0x0c); |
|
} |
|
|
|
static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
u8 reg0x08; |
|
u8 reg0x0c; |
|
u8 lv_mask = 0x40; |
|
u8 last = 1; |
|
int i; |
|
ktime_t nexttime; |
|
ktime_t tv[10]; |
|
|
|
reg0x08 = stv0299_readreg (state, 0x08); |
|
reg0x0c = stv0299_readreg (state, 0x0c); |
|
reg0x0c &= 0x0f; |
|
stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); |
|
if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) |
|
lv_mask = 0x10; |
|
|
|
cmd = cmd << 1; |
|
if (debug_legacy_dish_switch) |
|
printk ("%s switch command: 0x%04lx\n",__func__, cmd); |
|
|
|
nexttime = ktime_get_boottime(); |
|
if (debug_legacy_dish_switch) |
|
tv[0] = nexttime; |
|
stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ |
|
|
|
dvb_frontend_sleep_until(&nexttime, 32000); |
|
|
|
for (i=0; i<9; i++) { |
|
if (debug_legacy_dish_switch) |
|
tv[i+1] = ktime_get_boottime(); |
|
if((cmd & 0x01) != last) { |
|
/* set voltage to (last ? 13V : 18V) */ |
|
stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50)); |
|
last = (last) ? 0 : 1; |
|
} |
|
|
|
cmd = cmd >> 1; |
|
|
|
if (i != 8) |
|
dvb_frontend_sleep_until(&nexttime, 8000); |
|
} |
|
if (debug_legacy_dish_switch) { |
|
printk ("%s(%d): switch delay (should be 32k followed by all 8k\n", |
|
__func__, fe->dvb->num); |
|
for (i = 1; i < 10; i++) |
|
printk("%d: %d\n", i, |
|
(int) ktime_us_delta(tv[i], tv[i-1])); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_init (struct dvb_frontend* fe) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
int i; |
|
u8 reg; |
|
u8 val; |
|
|
|
dprintk("stv0299: init chip\n"); |
|
|
|
stv0299_writeregI(state, 0x02, 0x30 | state->mcr_reg); |
|
msleep(50); |
|
|
|
for (i = 0; ; i += 2) { |
|
reg = state->config->inittab[i]; |
|
val = state->config->inittab[i+1]; |
|
if (reg == 0xff && val == 0xff) |
|
break; |
|
if (reg == 0x0c && state->config->op0_off) |
|
val &= ~0x10; |
|
if (reg == 0x2) |
|
state->mcr_reg = val & 0xf; |
|
stv0299_writeregI(state, reg, val); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_read_status(struct dvb_frontend *fe, |
|
enum fe_status *status) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
u8 signal = 0xff - stv0299_readreg (state, 0x18); |
|
u8 sync = stv0299_readreg (state, 0x1b); |
|
|
|
dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, sync); |
|
*status = 0; |
|
|
|
if (signal > 10) |
|
*status |= FE_HAS_SIGNAL; |
|
|
|
if (sync & 0x80) |
|
*status |= FE_HAS_CARRIER; |
|
|
|
if (sync & 0x10) |
|
*status |= FE_HAS_VITERBI; |
|
|
|
if (sync & 0x08) |
|
*status |= FE_HAS_SYNC; |
|
|
|
if ((sync & 0x98) == 0x98) |
|
*status |= FE_HAS_LOCK; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
if (state->errmode != STATUS_BER) |
|
return -ENOSYS; |
|
|
|
*ber = stv0299_readreg(state, 0x1e) | (stv0299_readreg(state, 0x1d) << 8); |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8) |
|
| stv0299_readreg (state, 0x19)); |
|
|
|
dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __func__, |
|
stv0299_readreg (state, 0x18), |
|
stv0299_readreg (state, 0x19), (int) signal); |
|
|
|
signal = signal * 5 / 4; |
|
*strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8) |
|
| stv0299_readreg (state, 0x25)); |
|
xsnr = 3 * (xsnr - 0xa100); |
|
*snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
if (state->errmode != STATUS_UCBLOCKS) |
|
return -ENOSYS; |
|
|
|
state->ucblocks += stv0299_readreg(state, 0x1e); |
|
state->ucblocks += (stv0299_readreg(state, 0x1d) << 8); |
|
*ucblocks = state->ucblocks; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_set_frontend(struct dvb_frontend *fe) |
|
{ |
|
struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
int invval = 0; |
|
|
|
dprintk ("%s : FE_SET_FRONTEND\n", __func__); |
|
if (state->config->set_ts_params) |
|
state->config->set_ts_params(fe, 0); |
|
|
|
// set the inversion |
|
if (p->inversion == INVERSION_OFF) invval = 0; |
|
else if (p->inversion == INVERSION_ON) invval = 1; |
|
else { |
|
printk("stv0299 does not support auto-inversion\n"); |
|
return -EINVAL; |
|
} |
|
if (state->config->invert) invval = (~invval) & 1; |
|
stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval); |
|
|
|
if (fe->ops.tuner_ops.set_params) { |
|
fe->ops.tuner_ops.set_params(fe); |
|
if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); |
|
} |
|
|
|
stv0299_set_FEC(state, p->fec_inner); |
|
stv0299_set_symbolrate(fe, p->symbol_rate); |
|
stv0299_writeregI(state, 0x22, 0x00); |
|
stv0299_writeregI(state, 0x23, 0x00); |
|
|
|
state->tuner_frequency = p->frequency; |
|
state->fec_inner = p->fec_inner; |
|
state->symbol_rate = p->symbol_rate; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_get_frontend(struct dvb_frontend *fe, |
|
struct dtv_frontend_properties *p) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
s32 derot_freq; |
|
int invval; |
|
|
|
derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8) |
|
| stv0299_readreg (state, 0x23)); |
|
|
|
derot_freq *= (state->config->mclk >> 16); |
|
derot_freq += 500; |
|
derot_freq /= 1000; |
|
|
|
p->frequency += derot_freq; |
|
|
|
invval = stv0299_readreg (state, 0x0c) & 1; |
|
if (state->config->invert) invval = (~invval) & 1; |
|
p->inversion = invval ? INVERSION_ON : INVERSION_OFF; |
|
|
|
p->fec_inner = stv0299_get_fec(state); |
|
p->symbol_rate = stv0299_get_symbolrate(state); |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_sleep(struct dvb_frontend* fe) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
stv0299_writeregI(state, 0x02, 0xb0 | state->mcr_reg); |
|
state->initialised = 0; |
|
|
|
return 0; |
|
} |
|
|
|
static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
|
|
if (enable) { |
|
stv0299_writeregI(state, 0x05, 0xb5); |
|
} else { |
|
stv0299_writeregI(state, 0x05, 0x35); |
|
} |
|
udelay(1); |
|
return 0; |
|
} |
|
|
|
static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
|
|
|
fesettings->min_delay_ms = state->config->min_delay_ms; |
|
if (p->symbol_rate < 10000000) { |
|
fesettings->step_size = p->symbol_rate / 32000; |
|
fesettings->max_drift = 5000; |
|
} else { |
|
fesettings->step_size = p->symbol_rate / 16000; |
|
fesettings->max_drift = p->symbol_rate / 2000; |
|
} |
|
return 0; |
|
} |
|
|
|
static void stv0299_release(struct dvb_frontend* fe) |
|
{ |
|
struct stv0299_state* state = fe->demodulator_priv; |
|
kfree(state); |
|
} |
|
|
|
static const struct dvb_frontend_ops stv0299_ops; |
|
|
|
struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, |
|
struct i2c_adapter* i2c) |
|
{ |
|
struct stv0299_state* state = NULL; |
|
int id; |
|
|
|
/* allocate memory for the internal state */ |
|
state = kzalloc(sizeof(struct stv0299_state), GFP_KERNEL); |
|
if (state == NULL) goto error; |
|
|
|
/* setup the state */ |
|
state->config = config; |
|
state->i2c = i2c; |
|
state->initialised = 0; |
|
state->tuner_frequency = 0; |
|
state->symbol_rate = 0; |
|
state->fec_inner = 0; |
|
state->errmode = STATUS_BER; |
|
|
|
/* check if the demod is there */ |
|
stv0299_writeregI(state, 0x02, 0x30); /* standby off */ |
|
msleep(200); |
|
id = stv0299_readreg(state, 0x00); |
|
|
|
/* register 0x00 contains 0xa1 for STV0299 and STV0299B */ |
|
/* register 0x00 might contain 0x80 when returning from standby */ |
|
if (id != 0xa1 && id != 0x80) goto error; |
|
|
|
/* create dvb_frontend */ |
|
memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops)); |
|
state->frontend.demodulator_priv = state; |
|
return &state->frontend; |
|
|
|
error: |
|
kfree(state); |
|
return NULL; |
|
} |
|
|
|
static const struct dvb_frontend_ops stv0299_ops = { |
|
.delsys = { SYS_DVBS }, |
|
.info = { |
|
.name = "ST STV0299 DVB-S", |
|
.frequency_min_hz = 950 * MHz, |
|
.frequency_max_hz = 2150 * MHz, |
|
.frequency_stepsize_hz = 125 * kHz, |
|
.symbol_rate_min = 1000000, |
|
.symbol_rate_max = 45000000, |
|
.symbol_rate_tolerance = 500, /* ppm */ |
|
.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | |
|
FE_CAN_QPSK | |
|
FE_CAN_FEC_AUTO |
|
}, |
|
|
|
.release = stv0299_release, |
|
|
|
.init = stv0299_init, |
|
.sleep = stv0299_sleep, |
|
.write = stv0299_write, |
|
.i2c_gate_ctrl = stv0299_i2c_gate_ctrl, |
|
|
|
.set_frontend = stv0299_set_frontend, |
|
.get_frontend = stv0299_get_frontend, |
|
.get_tune_settings = stv0299_get_tune_settings, |
|
|
|
.read_status = stv0299_read_status, |
|
.read_ber = stv0299_read_ber, |
|
.read_signal_strength = stv0299_read_signal_strength, |
|
.read_snr = stv0299_read_snr, |
|
.read_ucblocks = stv0299_read_ucblocks, |
|
|
|
.diseqc_send_master_cmd = stv0299_send_diseqc_msg, |
|
.diseqc_send_burst = stv0299_send_diseqc_burst, |
|
.set_tone = stv0299_set_tone, |
|
.set_voltage = stv0299_set_voltage, |
|
.dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd, |
|
}; |
|
|
|
module_param(debug_legacy_dish_switch, int, 0444); |
|
MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches"); |
|
|
|
module_param(debug, int, 0644); |
|
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); |
|
|
|
MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver"); |
|
MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, Andreas Oberritter, Andrew de Quincey, Kenneth Aafly"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
EXPORT_SYMBOL(stv0299_attach);
|
|
|