From 49957f39665d50343e04effc65c78919364228ce Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 23 Sep 2011 14:32:11 +0300 Subject: ALSA: 6fire: don't use custom hex_to_bin() Signed-off-by: Andy Shevchenko Signed-off-by: Takashi Iwai --- sound/usb/6fire/firmware.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) (limited to 'sound/usb/6fire/firmware.c') diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c index 1e3ae3327dd..07bcfe4d18a 100644 --- a/sound/usb/6fire/firmware.c +++ b/sound/usb/6fire/firmware.c @@ -16,6 +16,7 @@ #include #include +#include #include "firmware.h" #include "chip.h" @@ -59,21 +60,19 @@ struct ihex_record { unsigned int txt_offset; /* current position in txt_data */ }; -static u8 usb6fire_fw_ihex_nibble(const u8 n) -{ - if (n >= '0' && n <= '9') - return n - '0'; - else if (n >= 'A' && n <= 'F') - return n - ('A' - 10); - else if (n >= 'a' && n <= 'f') - return n - ('a' - 10); - return 0; -} - static u8 usb6fire_fw_ihex_hex(const u8 *data, u8 *crc) { - u8 val = (usb6fire_fw_ihex_nibble(data[0]) << 4) | - usb6fire_fw_ihex_nibble(data[1]); + u8 val = 0; + int hval; + + hval = hex_to_bin(data[0]); + if (hval >= 0) + val |= (hval << 4); + + hval = hex_to_bin(data[1]); + if (hval >= 0) + val |= hval; + *crc += val; return val; } -- cgit v1.2.3