diff options
Diffstat (limited to 'drivers/media')
-rw-r--r-- | drivers/media/dvb/frontends/s5h1409.c | 138 | ||||
-rw-r--r-- | drivers/media/dvb/frontends/s5h1409.h | 15 |
2 files changed, 78 insertions, 75 deletions
diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c index 7500a1c53e68..cf4d8936bb83 100644 --- a/drivers/media/dvb/frontends/s5h1409.c +++ b/drivers/media/dvb/frontends/s5h1409.c @@ -30,10 +30,10 @@ struct s5h1409_state { - struct i2c_adapter* i2c; + struct i2c_adapter *i2c; /* configuration settings */ - const struct s5h1409_config* config; + const struct s5h1409_config *config; struct dvb_frontend frontend; @@ -48,6 +48,9 @@ struct s5h1409_state { }; static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Enable verbose debug messages"); + #define dprintk if (debug) printk /* Register values to initialise the demod, this will set VSB by default */ @@ -299,10 +302,10 @@ static struct qam256_snr_tab { }; /* 8 bit registers, 16 bit values */ -static int s5h1409_writereg(struct s5h1409_state* state, u8 reg, u16 data) +static int s5h1409_writereg(struct s5h1409_state *state, u8 reg, u16 data) { int ret; - u8 buf [] = { reg, data >> 8, data & 0xff }; + u8 buf[] = { reg, data >> 8, data & 0xff }; struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 3 }; @@ -310,19 +313,19 @@ static int s5h1409_writereg(struct s5h1409_state* state, u8 reg, u16 data) ret = i2c_transfer(state->i2c, &msg, 1); if (ret != 1) - printk("%s: writereg error (reg == 0x%02x, val == 0x%04x, " + printk(KERN_ERR "%s: error (reg == 0x%02x, val == 0x%04x, " "ret == %i)\n", __func__, reg, data, ret); return (ret != 1) ? -1 : 0; } -static u16 s5h1409_readreg(struct s5h1409_state* state, u8 reg) +static u16 s5h1409_readreg(struct s5h1409_state *state, u8 reg) { int ret; - u8 b0 [] = { reg }; - u8 b1 [] = { 0, 0 }; + u8 b0[] = { reg }; + u8 b1[] = { 0, 0 }; - struct i2c_msg msg [] = { + struct i2c_msg msg[] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, { .addr = state->config->demod_address, .flags = I2C_M_RD, @@ -335,9 +338,9 @@ static u16 s5h1409_readreg(struct s5h1409_state* state, u8 reg) return (b1[0] << 8) | b1[1]; } -static int s5h1409_softreset(struct dvb_frontend* fe) +static int s5h1409_softreset(struct dvb_frontend *fe) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s()\n", __func__); @@ -349,11 +352,11 @@ static int s5h1409_softreset(struct dvb_frontend* fe) } #define S5H1409_VSB_IF_FREQ 5380 -#define S5H1409_QAM_IF_FREQ state->config->qam_if +#define S5H1409_QAM_IF_FREQ (state->config->qam_if) -static int s5h1409_set_if_freq(struct dvb_frontend* fe, int KHz) +static int s5h1409_set_if_freq(struct dvb_frontend *fe, int KHz) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(%d KHz)\n", __func__, KHz); @@ -376,26 +379,26 @@ static int s5h1409_set_if_freq(struct dvb_frontend* fe, int KHz) return 0; } -static int s5h1409_set_spectralinversion(struct dvb_frontend* fe, int inverted) +static int s5h1409_set_spectralinversion(struct dvb_frontend *fe, int inverted) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(%d)\n", __func__, inverted); - if(inverted == 1) + if (inverted == 1) return s5h1409_writereg(state, 0x1b, 0x1101); /* Inverted */ else return s5h1409_writereg(state, 0x1b, 0x0110); /* Normal */ } -static int s5h1409_enable_modulation(struct dvb_frontend* fe, +static int s5h1409_enable_modulation(struct dvb_frontend *fe, fe_modulation_t m) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(0x%08x)\n", __func__, m); - switch(m) { + switch (m) { case VSB_8: dprintk("%s() VSB_8\n", __func__); if (state->if_freq != S5H1409_VSB_IF_FREQ) @@ -422,9 +425,9 @@ static int s5h1409_enable_modulation(struct dvb_frontend* fe, return 0; } -static int s5h1409_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) +static int s5h1409_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(%d)\n", __func__, enable); @@ -434,9 +437,9 @@ static int s5h1409_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) return s5h1409_writereg(state, 0xf3, 0); } -static int s5h1409_set_gpio(struct dvb_frontend* fe, int enable) +static int s5h1409_set_gpio(struct dvb_frontend *fe, int enable) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(%d)\n", __func__, enable); @@ -448,18 +451,18 @@ static int s5h1409_set_gpio(struct dvb_frontend* fe, int enable) s5h1409_readreg(state, 0xe3) & 0xfeff); } -static int s5h1409_sleep(struct dvb_frontend* fe, int enable) +static int s5h1409_sleep(struct dvb_frontend *fe, int enable) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(%d)\n", __func__, enable); return s5h1409_writereg(state, 0xf2, enable); } -static int s5h1409_register_reset(struct dvb_frontend* fe) +static int s5h1409_register_reset(struct dvb_frontend *fe) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s()\n", __func__); @@ -483,7 +486,7 @@ static void s5h1409_set_qam_amhum_mode(struct dvb_frontend *fe) reg &= 0xff; s5h1409_writereg(state, 0x96, 0x00c); - if ((reg < 0x38) || (reg > 0x68) ) { + if ((reg < 0x38) || (reg > 0x68)) { s5h1409_writereg(state, 0x93, 0x3332); s5h1409_writereg(state, 0x9e, 0x2c37); } else { @@ -514,7 +517,7 @@ static void s5h1409_set_qam_interleave_mode(struct dvb_frontend *fe) s5h1409_writereg(state, 0x96, 0x20); s5h1409_writereg(state, 0xad, - ( ((reg1 & 0xf000) >> 4) | (reg2 & 0xf0ff)) ); + (((reg1 & 0xf000) >> 4) | (reg2 & 0xf0ff))); s5h1409_writereg(state, 0xab, s5h1409_readreg(state, 0xab) & 0xeffe); } @@ -529,10 +532,10 @@ static void s5h1409_set_qam_interleave_mode(struct dvb_frontend *fe) } /* Talk to the demod, set the FEC, GUARD, QAM settings etc */ -static int s5h1409_set_frontend (struct dvb_frontend* fe, +static int s5h1409_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s(frequency=%d)\n", __func__, p->frequency); @@ -546,9 +549,11 @@ static int s5h1409_set_frontend (struct dvb_frontend* fe, msleep(100); if (fe->ops.tuner_ops.set_params) { - if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); fe->ops.tuner_ops.set_params(fe, p); - if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); } /* Optimize the demod for QAM */ @@ -592,17 +597,17 @@ static int s5h1409_set_mpeg_timing(struct dvb_frontend *fe, int mode) /* Reset the demod hardware and reset all of the configuration registers to a default state. */ -static int s5h1409_init (struct dvb_frontend* fe) +static int s5h1409_init(struct dvb_frontend *fe) { int i; - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; dprintk("%s()\n", __func__); s5h1409_sleep(fe, 0); s5h1409_register_reset(fe); - for (i=0; i < ARRAY_SIZE(init_tab); i++) + for (i = 0; i < ARRAY_SIZE(init_tab); i++) s5h1409_writereg(state, init_tab[i].reg, init_tab[i].data); /* The datasheet says that after initialisation, VSB is default */ @@ -627,9 +632,9 @@ static int s5h1409_init (struct dvb_frontend* fe) return 0; } -static int s5h1409_read_status(struct dvb_frontend* fe, fe_status_t* status) +static int s5h1409_read_status(struct dvb_frontend *fe, fe_status_t *status) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; u16 reg; u32 tuner_status = 0; @@ -637,12 +642,12 @@ static int s5h1409_read_status(struct dvb_frontend* fe, fe_status_t* status) /* Get the demodulator status */ reg = s5h1409_readreg(state, 0xf1); - if(reg & 0x1000) + if (reg & 0x1000) *status |= FE_HAS_VITERBI; - if(reg & 0x8000) + if (reg & 0x8000) *status |= FE_HAS_LOCK | FE_HAS_SYNC; - switch(state->config->status_mode) { + switch (state->config->status_mode) { case S5H1409_DEMODLOCKING: if (*status & FE_HAS_VITERBI) *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL; @@ -668,12 +673,12 @@ static int s5h1409_read_status(struct dvb_frontend* fe, fe_status_t* status) return 0; } -static int s5h1409_qam256_lookup_snr(struct dvb_frontend* fe, u16* snr, u16 v) +static int s5h1409_qam256_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v) { int i, ret = -EINVAL; dprintk("%s()\n", __func__); - for (i=0; i < ARRAY_SIZE(qam256_snr_tab); i++) { + for (i = 0; i < ARRAY_SIZE(qam256_snr_tab); i++) { if (v < qam256_snr_tab[i].val) { *snr = qam256_snr_tab[i].data; ret = 0; @@ -683,12 +688,12 @@ static int s5h1409_qam256_lookup_snr(struct dvb_frontend* fe, u16* snr, u16 v) return ret; } -static int s5h1409_qam64_lookup_snr(struct dvb_frontend* fe, u16* snr, u16 v) +static int s5h1409_qam64_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v) { int i, ret = -EINVAL; dprintk("%s()\n", __func__); - for (i=0; i < ARRAY_SIZE(qam64_snr_tab); i++) { + for (i = 0; i < ARRAY_SIZE(qam64_snr_tab); i++) { if (v < qam64_snr_tab[i].val) { *snr = qam64_snr_tab[i].data; ret = 0; @@ -698,12 +703,12 @@ static int s5h1409_qam64_lookup_snr(struct dvb_frontend* fe, u16* snr, u16 v) return ret; } -static int s5h1409_vsb_lookup_snr(struct dvb_frontend* fe, u16* snr, u16 v) +static int s5h1409_vsb_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v) { int i, ret = -EINVAL; dprintk("%s()\n", __func__); - for (i=0; i < ARRAY_SIZE(vsb_snr_tab); i++) { + for (i = 0; i < ARRAY_SIZE(vsb_snr_tab); i++) { if (v > vsb_snr_tab[i].val) { *snr = vsb_snr_tab[i].data; ret = 0; @@ -714,13 +719,13 @@ static int s5h1409_vsb_lookup_snr(struct dvb_frontend* fe, u16* snr, u16 v) return ret; } -static int s5h1409_read_snr(struct dvb_frontend* fe, u16* snr) +static int s5h1409_read_snr(struct dvb_frontend *fe, u16 *snr) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; u16 reg; dprintk("%s()\n", __func__); - switch(state->current_modulation) { + switch (state->current_modulation) { case QAM_64: reg = s5h1409_readreg(state, 0xf0) & 0xff; return s5h1409_qam64_lookup_snr(fe, snr, reg); @@ -737,30 +742,30 @@ static int s5h1409_read_snr(struct dvb_frontend* fe, u16* snr) return -EINVAL; } -static int s5h1409_read_signal_strength(struct dvb_frontend* fe, - u16* signal_strength) +static int s5h1409_read_signal_strength(struct dvb_frontend *fe, + u16 *signal_strength) { return s5h1409_read_snr(fe, signal_strength); } -static int s5h1409_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) +static int s5h1409_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; *ucblocks = s5h1409_readreg(state, 0xb5); return 0; } -static int s5h1409_read_ber(struct dvb_frontend* fe, u32* ber) +static int s5h1409_read_ber(struct dvb_frontend *fe, u32 *ber) { return s5h1409_read_ucblocks(fe, ber); } -static int s5h1409_get_frontend(struct dvb_frontend* fe, +static int s5h1409_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; p->frequency = state->current_frequency; p->u.vsb.modulation = state->current_modulation; @@ -768,25 +773,25 @@ static int s5h1409_get_frontend(struct dvb_frontend* fe, return 0; } -static int s5h1409_get_tune_settings(struct dvb_frontend* fe, +static int s5h1409_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune) { tune->min_delay_ms = 1000; return 0; } -static void s5h1409_release(struct dvb_frontend* fe) +static void s5h1409_release(struct dvb_frontend *fe) { - struct s5h1409_state* state = fe->demodulator_priv; + struct s5h1409_state *state = fe->demodulator_priv; kfree(state); } static struct dvb_frontend_ops s5h1409_ops; -struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config, - struct i2c_adapter* i2c) +struct dvb_frontend *s5h1409_attach(const struct s5h1409_config *config, + struct i2c_adapter *i2c) { - struct s5h1409_state* state = NULL; + struct s5h1409_state *state = NULL; u16 reg; /* allocate memory for the internal state */ @@ -825,6 +830,7 @@ error: kfree(state); return NULL; } +EXPORT_SYMBOL(s5h1409_attach); static struct dvb_frontend_ops s5h1409_ops = { @@ -850,14 +856,10 @@ static struct dvb_frontend_ops s5h1409_ops = { .release = s5h1409_release, }; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Enable verbose debug messages"); - MODULE_DESCRIPTION("Samsung S5H1409 QAM-B/ATSC Demodulator driver"); MODULE_AUTHOR("Steven Toth"); MODULE_LICENSE("GPL"); -EXPORT_SYMBOL(s5h1409_attach); /* * Local variables: diff --git a/drivers/media/dvb/frontends/s5h1409.h b/drivers/media/dvb/frontends/s5h1409.h index d1a1d2eb8e11..070d9743e330 100644 --- a/drivers/media/dvb/frontends/s5h1409.h +++ b/drivers/media/dvb/frontends/s5h1409.h @@ -24,8 +24,7 @@ #include <linux/dvb/frontend.h> -struct s5h1409_config -{ +struct s5h1409_config { /* the demodulator's i2c address */ u8 demod_address; @@ -60,12 +59,14 @@ struct s5h1409_config u16 mpeg_timing; }; -#if defined(CONFIG_DVB_S5H1409) || (defined(CONFIG_DVB_S5H1409_MODULE) && defined(MODULE)) -extern struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config, - struct i2c_adapter* i2c); +#if defined(CONFIG_DVB_S5H1409) || (defined(CONFIG_DVB_S5H1409_MODULE) \ + && defined(MODULE)) +extern struct dvb_frontend *s5h1409_attach(const struct s5h1409_config *config, + struct i2c_adapter *i2c); #else -static inline struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config, - struct i2c_adapter* i2c) +static inline struct dvb_frontend *s5h1409_attach( + const struct s5h1409_config *config, + struct i2c_adapter *i2c) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; |