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-rw-r--r--drivers/media/dvb/frontends/s5h1409.c138
-rw-r--r--drivers/media/dvb/frontends/s5h1409.h15
2 files changed, 78 insertions, 75 deletions
diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c
index 7500a1c..cf4d893 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 d1a1d2e..070d974 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;
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