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Message-ID: <20170817150017.GA16931@phobos.lan>
Date: Thu, 17 Aug 2017 17:00:17 +0200
From: Marcin Ciupak <marcin.s.ciupak@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Marcus Wolf <linux@...f-entwicklungen.de>,
devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] staging: pi433: replace INVALID_PARAM macro with inline
code
The following macro:
\#define INVALID_PARAM
{ \
dev_dbg(&spi->dev, "set: illegal input param"); \
return -EINVAL; \
}
affects control flow by having return statement. This is against
Linux Kernel Coding Style and should be avoided and therefore
this macro is replaced by inline code.
Additionally following 3 minor issues:
ERROR: code indent should use tabs where possible
ERROR: spaces required around that '!=' (ctx:VxV)
ERROR: space prohibited before that close parenthesis ')'
were fiexed inline.
Signed-off-by: Marcin Ciupak <marcin.s.ciupak@...il.com>
---
Changes in v2:
- corrected typo in patch subject
drivers/staging/pi433/rf69.c | 149 ++++++++++++++++++++++++++++++-------------
1 file changed, 104 insertions(+), 45 deletions(-)
diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index 85cd70d403ba..e48ff805c672 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -35,11 +35,6 @@
#define READ_REG(x) rf69_read_reg (spi, x)
#define WRITE_REG(x,y) rf69_write_reg(spi, x, y)
-#define INVALID_PARAM \
- { \
- dev_dbg(&spi->dev, "set: illegal input param"); \
- return -EINVAL; \
- }
/*-------------------------------------------------------------------------*/
@@ -55,7 +50,9 @@ int rf69_set_mode(struct spi_device *spi, enum mode mode)
case synthesizer: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_SYNTHESIZER);
case standby: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_STANDBY);
case mode_sleep: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_SLEEP);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
// we are using packet mode, so this check is not really needed
@@ -74,7 +71,9 @@ int rf69_set_data_mode(struct spi_device *spi, enum dataMode dataMode)
case packet: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | DATAMODUL_MODE_PACKET);
case continuous: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | DATAMODUL_MODE_CONTINUOUS);
case continuousNoSync: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | DATAMODUL_MODE_CONTINUOUS_NOSYNC);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -87,7 +86,9 @@ int rf69_set_modulation(struct spi_device *spi, enum modulation modulation)
switch (modulation) {
case OOK: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_TYPE) | DATAMODUL_MODULATION_TYPE_OOK);
case FSK: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_TYPE) | DATAMODUL_MODULATION_TYPE_FSK);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -120,14 +121,18 @@ int rf69_set_modulation_shaping(struct spi_device *spi, enum modShaping modShapi
case shaping1_0: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_1_0);
case shaping0_5: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_0_3);
case shaping0_3: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_0_5);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
} else {
switch (modShaping) {
case shapingOff: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_NONE);
case shapingBR: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_BR);
case shaping2BR: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_2BR);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
}
@@ -148,7 +153,7 @@ int rf69_set_bit_rate(struct spi_device *spi, u16 bitRate)
bitRate_min = F_OSC / 8388608; // 8388608 = 2^23;
if (bitRate < bitRate_min) {
dev_dbg(&spi->dev, "setBitRate: illegal input param");
- INVALID_PARAM;
+ return -EINVAL;
}
// calculate reg settings
@@ -182,7 +187,7 @@ int rf69_set_deviation(struct spi_device *spi, u32 deviation)
if (deviation < 600 || deviation > 500000) { //TODO: Abhängigkeit von Bitrate beachten!!
dev_dbg(&spi->dev, "set_deviation: illegal input param");
- INVALID_PARAM;
+ return -EINVAL;
}
// calculat f step
@@ -199,7 +204,7 @@ int rf69_set_deviation(struct spi_device *spi, u32 deviation)
// check msb
if (msb & !FDEVMASB_MASK) {
dev_dbg(&spi->dev, "set_deviation: err in calc of msb");
- INVALID_PARAM;
+ return -EINVAL;
}
// write to chip
@@ -234,7 +239,7 @@ int rf69_set_frequency(struct spi_device *spi, u32 frequency)
f_max = div_u64(f_step * 8388608, factor);
if (frequency > f_max) {
dev_dbg(&spi->dev, "setFrequency: illegal input param");
- INVALID_PARAM;
+ return -EINVAL;
}
// calculate reg settings
@@ -265,7 +270,9 @@ int rf69_set_amplifier_0(struct spi_device *spi, enum optionOnOff optionOnOff)
switch(optionOnOff) {
case optionOn: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) | MASK_PALEVEL_PA0) );
case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA0) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -278,7 +285,9 @@ int rf69_set_amplifier_1(struct spi_device *spi, enum optionOnOff optionOnOff)
switch(optionOnOff) {
case optionOn: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) | MASK_PALEVEL_PA1) );
case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA1) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -291,7 +300,9 @@ int rf69_set_amplifier_2(struct spi_device *spi, enum optionOnOff optionOnOff)
switch(optionOnOff) {
case optionOn: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) | MASK_PALEVEL_PA2) );
case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA2) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -304,8 +315,10 @@ int rf69_set_output_power_level(struct spi_device *spi, u8 powerLevel)
powerLevel +=18; // TODO Abhängigkeit von PA0,1,2 setting
// check input value
- if (powerLevel > 0x1f)
- INVALID_PARAM;
+ if (powerLevel > 0x1f) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
// write value
return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_OUTPUT_POWER) | powerLevel);
@@ -334,7 +347,9 @@ int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp)
case ramp15: return WRITE_REG(REG_PARAMP, PARAMP_15);
case ramp12: return WRITE_REG(REG_PARAMP, PARAMP_12);
case ramp10: return WRITE_REG(REG_PARAMP, PARAMP_10);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -347,7 +362,9 @@ int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance ant
switch(antennaImpedance) {
case fiftyOhm: return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) & ~MASK_LNA_ZIN) );
case twohundretOhm: return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) | MASK_LNA_ZIN) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -365,7 +382,9 @@ int rf69_set_lna_gain(struct spi_device *spi, enum lnaGain lnaGain)
case maxMinus24: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_24) );
case maxMinus36: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_36) );
case maxMinus48: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_48) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -402,7 +421,9 @@ int rf69_set_dc_cut_off_frequency_intern(struct spi_device *spi ,u8 reg, enum dc
case dcc0_5Percent: return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_5_PERCENT) );
case dcc0_25Percent: return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_25_PERCENT) );
case dcc0_125Percent: return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_125_PERCENT) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -430,10 +451,17 @@ static int rf69_set_bandwidth_intern(struct spi_device *spi, u8 reg,
u8 newValue;
// check value for mantisse and exponent
- if (exponent > 7) INVALID_PARAM;
- if ( (mantisse!=mantisse16) &&
- (mantisse!=mantisse20) &&
- (mantisse!=mantisse24) ) INVALID_PARAM;
+ if (exponent > 7) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
+
+ if ((mantisse != mantisse16) &&
+ (mantisse != mantisse20) &&
+ (mantisse != mantisse24)) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
// read old value
newValue = READ_REG(reg);
@@ -483,7 +511,9 @@ int rf69_set_ook_threshold_type(struct spi_device *spi, enum thresholdType thres
case fixed: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_FIXED) );
case peak: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_PEAK) );
case average: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_AVERAGE) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -502,7 +532,9 @@ int rf69_set_ook_threshold_step(struct spi_device *spi, enum thresholdStep thres
case step_4_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_4_0_DB) );
case step_5_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_5_0_DB) );
case step_6_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_6_0_DB) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -521,7 +553,9 @@ int rf69_set_ook_threshold_dec(struct spi_device *spi, enum thresholdDecrement t
case dec_4times: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_4_TIMES) );
case dec_8times: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_8_TIMES) );
case dec_16times: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_16_TIMES) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -537,7 +571,10 @@ int rf69_set_dio_mapping(struct spi_device *spi, u8 DIONumber, u8 value)
#endif
// check DIO number
- if (DIONumber > 5) INVALID_PARAM;
+ if (DIONumber > 5) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
switch (DIONumber) {
case 0: mask=MASK_DIO0; shift=SHIFT_DIO0; regaddr=REG_DIOMAPPING1; break;
@@ -596,7 +633,9 @@ int rf69_reset_flag(struct spi_device *spi, enum flag flag)
case rssiExceededThreshold: return WRITE_REG(REG_IRQFLAGS1, MASK_IRQFLAGS1_RSSI);
case syncAddressMatch: return WRITE_REG(REG_IRQFLAGS1, MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH);
case fifoOverrun: return WRITE_REG(REG_IRQFLAGS2, MASK_IRQFLAGS2_FIFO_OVERRUN);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -665,7 +704,9 @@ int rf69_set_sync_enable(struct spi_device *spi, enum optionOnOff optionOnOff)
switch(optionOnOff) {
case optionOn: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) | MASK_SYNC_CONFIG_SYNC_ON) );
case optionOff: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_ON) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -678,7 +719,9 @@ int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition
switch(fifoFillCondition) {
case always: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) | MASK_SYNC_CONFIG_FIFO_FILL_CONDITION) );
case afterSyncInterrupt: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_FIFO_FILL_CONDITION) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -689,8 +732,10 @@ int rf69_set_sync_size(struct spi_device *spi, u8 syncSize)
#endif
// check input value
- if (syncSize > 0x07)
- INVALID_PARAM;
+ if (syncSize > 0x07) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
// write value
return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_SIZE) | (syncSize << 3) );
@@ -703,8 +748,10 @@ int rf69_set_sync_tolerance(struct spi_device *spi, u8 syncTolerance)
#endif
// check input value
- if (syncTolerance > 0x07)
- INVALID_PARAM;
+ if (syncTolerance > 0x07) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
// write value
return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_SIZE) | syncTolerance);
@@ -739,7 +786,9 @@ int rf69_set_packet_format(struct spi_device *spi, enum packetFormat packetForma
switch(packetFormat) {
case packetLengthVar: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) | MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE) );
case packetLengthFix: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -752,7 +801,9 @@ int rf69_set_crc_enable(struct spi_device *spi, enum optionOnOff optionOnOff)
switch(optionOnOff) {
case optionOn: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) | MASK_PACKETCONFIG1_CRC_ON) );
case optionOff: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_CRC_ON) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -766,7 +817,9 @@ int rf69_set_adressFiltering(struct spi_device *spi, enum addressFiltering addre
case filteringOff: return WRITE_REG(REG_PACKETCONFIG1, ( (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_OFF) );
case nodeAddress: return WRITE_REG(REG_PACKETCONFIG1, ( (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODE) );
case nodeOrBroadcastAddress: return WRITE_REG(REG_PACKETCONFIG1, ( (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODEBROADCAST) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -815,7 +868,9 @@ int rf69_set_tx_start_condition(struct spi_device *spi, enum txStartCondition tx
switch(txStartCondition) {
case fifoLevel: return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) & ~MASK_FIFO_THRESH_TXSTART) );
case fifoNotEmpty: return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) | MASK_FIFO_THRESH_TXSTART) );
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
@@ -828,8 +883,10 @@ int rf69_set_fifo_threshold(struct spi_device *spi, u8 threshold)
#endif
// check input value
- if (threshold & 0x80)
- INVALID_PARAM;
+ if (threshold & 0x80) {
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
+ }
// write value
retval = WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) & ~MASK_FIFO_THRESH_VALUE) | threshold);
@@ -850,7 +907,9 @@ int rf69_set_dagc(struct spi_device *spi, enum dagc dagc)
case normalMode: return WRITE_REG(REG_TESTDAGC, DAGC_NORMAL);
case improve: return WRITE_REG(REG_TESTDAGC, DAGC_IMPROVED_LOWBETA0);
case improve4LowModulationIndex: return WRITE_REG(REG_TESTDAGC, DAGC_IMPROVED_LOWBETA1);
- default: INVALID_PARAM;
+ default:
+ dev_dbg(&spi->dev, "set: illegal input param");
+ return -EINVAL;
}
}
--
2.13.0
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