V4L/DVB (9260): cx24123: Checkpatch compliance
cx24123: Checkpatch compliance Signed-off-by: Steven Toth <stoth@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Steven Toth
Mauro Carvalho Chehab
Родитель
b431c61642
Коммит
93504abfeb
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@ -33,7 +33,13 @@
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#define XTAL 10111000
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static int force_band;
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module_param(force_band, int, 0644);
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MODULE_PARM_DESC(force_band, "Force a specific band select "\
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"(1-9, default:off).");
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
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#define info(args...) do { printk(KERN_INFO "CX24123: " args); } while (0)
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#define err(args...) do { printk(KERN_ERR "CX24123: " args); } while (0)
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@ -46,8 +52,7 @@ static int debug;
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} \
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} while (0)
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struct cx24123_state
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{
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struct cx24123_state {
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struct i2c_adapter *i2c;
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const struct cx24123_config *config;
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@ -70,8 +75,7 @@ struct cx24123_state
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};
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/* Various tuner defaults need to be established for a given symbol rate Sps */
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static struct
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{
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static struct cx24123_AGC_val {
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u32 symbolrate_low;
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u32 symbolrate_high;
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u32 VCAprogdata;
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@ -109,8 +113,7 @@ static struct
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* fixme: The bounds on the bands do not match the doc in real life.
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* fixme: Some of them have been moved, other might need adjustment.
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*/
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static struct
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{
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static struct cx24123_bandselect_val {
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u32 freq_low;
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u32 freq_high;
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u32 VCOdivider;
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@ -249,7 +252,8 @@ static int cx24123_i2c_writereg(struct cx24123_state *state,
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/* printk(KERN_DEBUG "wr(%02x): %02x %02x\n", i2c_addr, reg, data); */
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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err = i2c_transfer(state->i2c, &msg, 1);
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if (err != 1) {
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printk("%s: writereg error(err == %i, reg == 0x%02x,"
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" data == 0x%02x)\n", __func__, err, reg, data);
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return err;
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@ -284,7 +288,8 @@ static int cx24123_i2c_readreg(struct cx24123_state *state, u8 i2c_addr, u8 reg)
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#define cx24123_writereg(state, reg, val) \
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cx24123_i2c_writereg(state, state->config->demod_address, reg, val)
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static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion)
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static int cx24123_set_inversion(struct cx24123_state *state,
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fe_spectral_inversion_t inversion)
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{
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u8 nom_reg = cx24123_readreg(state, 0x0e);
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u8 auto_reg = cx24123_readreg(state, 0x10);
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@ -311,7 +316,8 @@ static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_invers
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return 0;
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}
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static int cx24123_get_inversion(struct cx24123_state* state, fe_spectral_inversion_t *inversion)
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static int cx24123_get_inversion(struct cx24123_state *state,
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fe_spectral_inversion_t *inversion)
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{
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u8 val;
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@ -337,9 +343,11 @@ static int cx24123_set_fec(struct cx24123_state* state, fe_code_rate_t fec)
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/* Set the soft decision threshold */
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if (fec == FEC_1_2)
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cx24123_writereg(state, 0x43, cx24123_readreg(state, 0x43) | 0x01);
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cx24123_writereg(state, 0x43,
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cx24123_readreg(state, 0x43) | 0x01);
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else
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cx24123_writereg(state, 0x43, cx24123_readreg(state, 0x43) & ~0x01);
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cx24123_writereg(state, 0x43,
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cx24123_readreg(state, 0x43) & ~0x01);
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switch (fec) {
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case FEC_1_2:
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@ -433,9 +441,9 @@ static u32 cx24123_int_log2(u32 a, u32 b)
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{
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u32 exp, nearest = 0;
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u32 div = a / b;
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if(a % b >= b / 2) ++div;
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if(div < (1 << 31))
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{
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if (a % b >= b / 2)
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++div;
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if (div < (1 << 31)) {
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for (exp = 1; div > exp; nearest++)
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exp += exp;
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}
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@ -500,7 +508,7 @@ static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate)
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cx24123_writereg(state, 0x08, (ratio >> 16) & 0x3f);
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cx24123_writereg(state, 0x09, (ratio >> 8) & 0xff);
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cx24123_writereg(state, 0x0a, (ratio ) & 0xff );
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cx24123_writereg(state, 0x0a, ratio & 0xff);
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/* also set the demodulator sample gain */
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sample_gain = cx24123_int_log2(sample_rate, srate);
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@ -514,10 +522,12 @@ static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate)
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}
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/*
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* Based on the required frequency and symbolrate, the tuner AGC has to be configured
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* and the correct band selected. Calculate those values
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* Based on the required frequency and symbolrate, the tuner AGC has
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* to be configured and the correct band selected.
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* Calculate those values.
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*/
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static int cx24123_pll_calculate(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
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static int cx24123_pll_calculate(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *p)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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u32 ndiv = 0, adiv = 0, vco_div = 0;
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@ -525,6 +535,8 @@ static int cx24123_pll_calculate(struct dvb_frontend* fe, struct dvb_frontend_pa
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int pump = 2;
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int band = 0;
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int num_bands = ARRAY_SIZE(cx24123_bandselect_vals);
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struct cx24123_bandselect_val *bsv = NULL;
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struct cx24123_AGC_val *agcv = NULL;
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/* Defaults for low freq, low rate */
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state->VCAarg = cx24123_AGC_vals[0].VCAprogdata;
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@ -532,58 +544,65 @@ static int cx24123_pll_calculate(struct dvb_frontend* fe, struct dvb_frontend_pa
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state->bandselectarg = cx24123_bandselect_vals[0].progdata;
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vco_div = cx24123_bandselect_vals[0].VCOdivider;
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/* For the given symbol rate, determine the VCA, VGA and FILTUNE programming bits */
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for (i = 0; i < ARRAY_SIZE(cx24123_AGC_vals); i++)
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{
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if ((cx24123_AGC_vals[i].symbolrate_low <= p->u.qpsk.symbol_rate) &&
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(cx24123_AGC_vals[i].symbolrate_high >= p->u.qpsk.symbol_rate) ) {
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state->VCAarg = cx24123_AGC_vals[i].VCAprogdata;
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state->VGAarg = cx24123_AGC_vals[i].VGAprogdata;
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state->FILTune = cx24123_AGC_vals[i].FILTune;
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/* For the given symbol rate, determine the VCA, VGA and
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* FILTUNE programming bits */
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for (i = 0; i < ARRAY_SIZE(cx24123_AGC_vals); i++) {
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agcv = &cx24123_AGC_vals[i];
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if ((agcv->symbolrate_low <= p->u.qpsk.symbol_rate) &&
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(agcv->symbolrate_high >= p->u.qpsk.symbol_rate)) {
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state->VCAarg = agcv->VCAprogdata;
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state->VGAarg = agcv->VGAprogdata;
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state->FILTune = agcv->FILTune;
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}
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}
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/* determine the band to use */
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if(force_band < 1 || force_band > num_bands)
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{
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for (i = 0; i < num_bands; i++)
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{
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if ((cx24123_bandselect_vals[i].freq_low <= p->frequency) &&
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(cx24123_bandselect_vals[i].freq_high >= p->frequency) )
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if (force_band < 1 || force_band > num_bands) {
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for (i = 0; i < num_bands; i++) {
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bsv = &cx24123_bandselect_vals[i];
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if ((bsv->freq_low <= p->frequency) &&
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(bsv->freq_high >= p->frequency))
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band = i;
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}
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}
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else
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} else
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band = force_band - 1;
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state->bandselectarg = cx24123_bandselect_vals[band].progdata;
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vco_div = cx24123_bandselect_vals[band].VCOdivider;
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/* determine the charge pump current */
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if ( p->frequency < (cx24123_bandselect_vals[band].freq_low + cx24123_bandselect_vals[band].freq_high)/2 )
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if (p->frequency < (cx24123_bandselect_vals[band].freq_low +
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cx24123_bandselect_vals[band].freq_high) / 2)
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pump = 0x01;
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else
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pump = 0x02;
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/* Determine the N/A dividers for the requested lband freq (in kHz). */
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/* Note: the reference divider R=10, frequency is in KHz, XTAL is in Hz */
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ndiv = ( ((p->frequency * vco_div * 10) / (2 * XTAL / 1000)) / 32) & 0x1ff;
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adiv = ( ((p->frequency * vco_div * 10) / (2 * XTAL / 1000)) % 32) & 0x1f;
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/* Note: the reference divider R=10, frequency is in KHz,
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* XTAL is in Hz */
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ndiv = (((p->frequency * vco_div * 10) /
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(2 * XTAL / 1000)) / 32) & 0x1ff;
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adiv = (((p->frequency * vco_div * 10) /
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(2 * XTAL / 1000)) % 32) & 0x1f;
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if (adiv == 0 && ndiv > 0)
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ndiv--;
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/* control bits 11, refdiv 11, charge pump polarity 1, charge pump current, ndiv, adiv */
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state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) | (pump << 14) | (ndiv << 5) | adiv;
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/* control bits 11, refdiv 11, charge pump polarity 1,
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* charge pump current, ndiv, adiv */
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state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) |
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(pump << 14) | (ndiv << 5) | adiv;
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return 0;
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}
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/*
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* Tuner data is 21 bits long, must be left-aligned in data.
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* Tuner cx24109 is written through a dedicated 3wire interface on the demod chip.
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* Tuner cx24109 is written through a dedicated 3wire interface
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* on the demod chip.
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*/
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static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_parameters *p, u32 data)
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static int cx24123_pll_writereg(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *p, u32 data)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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unsigned long timeout;
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@ -620,7 +639,8 @@ static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_par
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msleep(10);
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}
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/* send the lower 5 bits of this byte, padded with 3 LBB, wait for the send to be completed */
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/* send the lower 5 bits of this byte, padded with 3 LBB,
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* wait for the send to be completed */
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timeout = jiffies + msecs_to_jiffies(40);
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cx24123_writereg(state, 0x22, (data) & 0xff);
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while ((cx24123_readreg(state, 0x20) & 0x80)) {
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@ -639,7 +659,8 @@ static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_par
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return 0;
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}
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static int cx24123_pll_tune(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
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static int cx24123_pll_tune(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *p)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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u8 val;
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@ -699,11 +720,13 @@ static int cx24123_initfe(struct dvb_frontend* fe)
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/* Configure the demod to a good set of defaults */
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for (i = 0; i < ARRAY_SIZE(cx24123_regdata); i++)
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cx24123_writereg(state, cx24123_regdata[i].reg, cx24123_regdata[i].data);
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cx24123_writereg(state, cx24123_regdata[i].reg,
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cx24123_regdata[i].data);
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/* Set the LNB polarity */
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if (state->config->lnb_polarity)
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cx24123_writereg(state, 0x32, cx24123_readreg(state, 0x32) | 0x02);
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cx24123_writereg(state, 0x32,
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cx24123_readreg(state, 0x32) | 0x02);
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if (state->config->dont_use_pll)
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cx24123_repeater_mode(state, 1, 0);
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@ -711,7 +734,8 @@ static int cx24123_initfe(struct dvb_frontend* fe)
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return 0;
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}
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static int cx24123_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
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static int cx24123_set_voltage(struct dvb_frontend *fe,
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fe_sec_voltage_t voltage)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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u8 val;
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@ -749,7 +773,8 @@ static void cx24123_wait_for_diseqc(struct cx24123_state *state)
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}
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}
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static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd)
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static int cx24123_send_diseqc_msg(struct dvb_frontend *fe,
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struct dvb_diseqc_master_cmd *cmd)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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int i, val, tone;
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@ -771,20 +796,21 @@ static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_ma
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cx24123_writereg(state, 0x2C + i, cmd->msg[i]);
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val = cx24123_readreg(state, 0x29);
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cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40) | ((cmd->msg_len-3) & 3));
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cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40) |
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((cmd->msg_len-3) & 3));
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/* wait for diseqc message to finish sending */
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cx24123_wait_for_diseqc(state);
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/* restart continuous tone if enabled */
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if (tone & 0x10) {
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if (tone & 0x10)
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cx24123_writereg(state, 0x29, tone & ~0x40);
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}
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return 0;
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}
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static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
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static int cx24123_diseqc_send_burst(struct dvb_frontend *fe,
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fe_sec_mini_cmd_t burst)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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int val, tone;
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@ -814,9 +840,9 @@ static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t
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cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
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/* restart continuous tone if enabled */
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if (tone & 0x10) {
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if (tone & 0x10)
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cx24123_writereg(state, 0x29, tone & ~0x40);
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}
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return 0;
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}
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@ -853,8 +879,9 @@ static int cx24123_read_status(struct dvb_frontend* fe, fe_status_t* status)
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}
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/*
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* Configured to return the measurement of errors in blocks, because no UCBLOCKS value
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* is available, so this value doubles up to satisfy both measurements
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* Configured to return the measurement of errors in blocks,
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* because no UCBLOCKS value is available, so this value doubles up
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* to satisfy both measurements.
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*/
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static int cx24123_read_ber(struct dvb_frontend *fe, u32 *ber)
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{
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@ -876,7 +903,8 @@ static int cx24123_read_signal_strength(struct dvb_frontend *fe,
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{
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struct cx24123_state *state = fe->demodulator_priv;
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*signal_strength = cx24123_readreg(state, 0x3b) << 8; /* larger = better */
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/* larger = better */
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*signal_strength = cx24123_readreg(state, 0x3b) << 8;
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dprintk("Signal strength = %d\n", *signal_strength);
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@ -932,7 +960,8 @@ static int cx24123_set_frontend(struct dvb_frontend *fe,
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return 0;
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}
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static int cx24123_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
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static int cx24123_get_frontend(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *p)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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@ -997,7 +1026,7 @@ static int cx24123_tune(struct dvb_frontend* fe,
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static int cx24123_get_algo(struct dvb_frontend *fe)
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{
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return 1; //FE_ALGO_HW
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return 1; /* FE_ALGO_HW */
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}
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static void cx24123_release(struct dvb_frontend *fe)
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@ -1057,15 +1086,20 @@ struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
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/* check if the demod is there */
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state->demod_rev = cx24123_readreg(state, 0x00);
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switch (state->demod_rev) {
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case 0xe1: info("detected CX24123C\n"); break;
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case 0xd1: info("detected CX24123\n"); break;
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case 0xe1:
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info("detected CX24123C\n");
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break;
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case 0xd1:
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info("detected CX24123\n");
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break;
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default:
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err("wrong demod revision: %x\n", state->demod_rev);
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* create dvb_frontend */
|
||||
memcpy(&state->frontend.ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
|
||||
memcpy(&state->frontend.ops, &cx24123_ops,
|
||||
sizeof(struct dvb_frontend_ops));
|
||||
state->frontend.demodulator_priv = state;
|
||||
|
||||
/* create tuner i2c adapter */
|
||||
|
|
@ -1090,6 +1124,7 @@ error:
|
|||
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL(cx24123_attach);
|
||||
|
||||
static struct dvb_frontend_ops cx24123_ops = {
|
||||
|
||||
|
|
@ -1126,15 +1161,8 @@ static struct dvb_frontend_ops cx24123_ops = {
|
|||
.get_frontend_algo = cx24123_get_algo,
|
||||
};
|
||||
|
||||
module_param(debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
|
||||
|
||||
module_param(force_band, int, 0644);
|
||||
MODULE_PARM_DESC(force_band, "Force a specific band select (1-9, default:off).");
|
||||
|
||||
MODULE_DESCRIPTION("DVB Frontend module for Conexant " \
|
||||
"CX24123/CX24109/CX24113 hardware");
|
||||
MODULE_AUTHOR("Steven Toth");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
EXPORT_SYMBOL(cx24123_attach);
|
||||
|
|
|
|||
|
|
@ -23,8 +23,7 @@
|
|||
|
||||
#include <linux/dvb/frontend.h>
|
||||
|
||||
struct cx24123_config
|
||||
{
|
||||
struct cx24123_config {
|
||||
/* the demodulator's i2c address */
|
||||
u8 demod_address;
|
||||
|
||||
|
|
@ -39,7 +38,8 @@ struct cx24123_config
|
|||
void (*agc_callback) (struct dvb_frontend *);
|
||||
};
|
||||
|
||||
#if defined(CONFIG_DVB_CX24123) || (defined(CONFIG_DVB_CX24123_MODULE) && defined(MODULE))
|
||||
#if defined(CONFIG_DVB_CX24123) || (defined(CONFIG_DVB_CX24123_MODULE) \
|
||||
&& defined(MODULE))
|
||||
extern struct dvb_frontend *cx24123_attach(const struct cx24123_config *config,
|
||||
struct i2c_adapter *i2c);
|
||||
extern struct i2c_adapter *cx24123_get_tuner_i2c_adapter(struct dvb_frontend *);
|
||||
|
|
@ -56,6 +56,6 @@ static struct i2c_adapter *
|
|||
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
|
||||
return NULL;
|
||||
}
|
||||
#endif // CONFIG_DVB_CX24123
|
||||
#endif
|
||||
|
||||
#endif /* CX24123_H */
|
||||
|
|
|
|||
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