lkml.org 
[lkml]   [2017]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] staging: pi433: #define shift constants in rf69.c
This patch completes TODO improvements in rf69.c to change shift
constants to a define.

Signed-off-by: Joshua Abraham <j.abraham1776@gmail.com>
---
drivers/staging/pi433/rf69.c | 4 ++--
drivers/staging/pi433/rf69_registers.h | 4 ++++
2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index e69a2153c999..cfcace195be9 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -102,7 +102,7 @@ enum modulation rf69_get_modulation(struct spi_device *spi)

currentValue = READ_REG(REG_DATAMODUL);

- switch (currentValue & MASK_DATAMODUL_MODULATION_TYPE >> 3) { // TODO improvement: change 3 to define
+ switch (currentValue & MASK_DATAMODUL_MODULATION_TYPE >> SHIFT_DATAMODUL_MODE) {
case DATAMODUL_MODULATION_TYPE_OOK: return OOK;
case DATAMODUL_MODULATION_TYPE_FSK: return FSK;
default: return undefined;
@@ -409,7 +409,7 @@ enum lnaGain rf69_get_lna_gain(struct spi_device *spi)

currentValue = READ_REG(REG_LNA);

- switch (currentValue & MASK_LNA_CURRENT_GAIN >> 3) { // improvement: change 3 to define
+ switch (currentValue & MASK_LNA_CURRENT_GAIN >> SHIFT_LNA_CURRENT_GAIN) {
case LNA_GAIN_AUTO: return automatic;
case LNA_GAIN_MAX: return max;
case LNA_GAIN_MAX_MINUS_6: return maxMinus6;
diff --git a/drivers/staging/pi433/rf69_registers.h b/drivers/staging/pi433/rf69_registers.h
index 6335d42142fe..119df543e80e 100644
--- a/drivers/staging/pi433/rf69_registers.h
+++ b/drivers/staging/pi433/rf69_registers.h
@@ -121,6 +121,8 @@
#define OPMODE_MODE_RECEIVE 0x10

/* RegDataModul */
+#define SHIFT_DATAMODUL_MODE 0x03
+
#define MASK_DATAMODUL_MODE 0x06
#define MASK_DATAMODUL_MODULATION_TYPE 0x18
#define MASK_DATAMODUL_MODULATION_SHAPE 0x03
@@ -234,6 +236,8 @@
*/

/* RegLna (0x18) */
+#define SHIFT_LNA_CURRENT_GAIN 0x03
+
#define MASK_LNA_ZIN 0x80
#define MASK_LNA_CURRENT_GAIN 0x38
#define MASK_LNA_GAIN 0x07
--
2.15.0
\
 
 \ /
  Last update: 2017-11-08 21:11    [W:0.065 / U:0.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site