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authorIvo van Doorn <ivdoorn@gmail.com>2008-08-04 16:38:47 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-08-22 16:29:58 -0400
commit8c5e7a5f59f9d11597bd47de28334da318ea0e80 (patch)
tree46dc69607e8a196fd68b3b040b312bc1e7fc0559 /drivers/net/wireless/rt2x00/rt2400pci.h
parent906c110fcc24bdd5bf0fa22d89ac75d99c747e53 (diff)
downloadop-kernel-dev-8c5e7a5f59f9d11597bd47de28334da318ea0e80.zip
op-kernel-dev-8c5e7a5f59f9d11597bd47de28334da318ea0e80.tar.gz
rt2x00: Gather channel information in structure
Channel information which is read from EEPROM should be read into an array containing per-channel information. This removes the requirement of multiple arrays and makes the channel handling a bit cleaner and easier to expand. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2400pci.h')
-rw-r--r--drivers/net/wireless/rt2x00/rt2400pci.h22
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.h b/drivers/net/wireless/rt2x00/rt2400pci.h
index bc55642..bbff381 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.h
+++ b/drivers/net/wireless/rt2x00/rt2400pci.h
@@ -938,19 +938,13 @@
#define MAX_TXPOWER 62
#define DEFAULT_TXPOWER 39
-#define TXPOWER_FROM_DEV(__txpower) \
-({ \
- ((__txpower) > MAX_TXPOWER) ? DEFAULT_TXPOWER - MIN_TXPOWER : \
- ((__txpower) < MIN_TXPOWER) ? DEFAULT_TXPOWER - MIN_TXPOWER : \
- (((__txpower) - MAX_TXPOWER) + MIN_TXPOWER); \
-})
-
-#define TXPOWER_TO_DEV(__txpower) \
-({ \
- (__txpower) += MIN_TXPOWER; \
- ((__txpower) <= MIN_TXPOWER) ? MAX_TXPOWER : \
- (((__txpower) >= MAX_TXPOWER) ? MIN_TXPOWER : \
- (MAX_TXPOWER - ((__txpower) - MIN_TXPOWER))); \
-})
+#define __CLAMP_TX(__txpower) \
+ clamp_t(char, (__txpower), MIN_TXPOWER, MAX_TXPOWER)
+
+#define TXPOWER_FROM_DEV(__txpower) \
+ ((__CLAMP_TX(__txpower) - MAX_TXPOWER) + MIN_TXPOWER)
+
+#define TXPOWER_TO_DEV(__txpower) \
+ MAX_TXPOWER - (__CLAMP_TX(__txpower) - MIN_TXPOWER)
#endif /* RT2400PCI_H */
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