linux-kernel - Re: [PATCH] alsa: 6fire: don't use custom hex_to

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Date:	Fri, 23 Sep 2011 15:22:51 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH] alsa: 6fire: don't use custom hex_to_bin()

At Fri, 23 Sep 2011 14:32:11 +0300,
Andy Shevchenko wrote:
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Cc: Takashi Iwai <tiwai@...e.de>
> Cc: alsa-devel@...a-project.org

Applied now.  Thanks.


Takashi

> ---
>  sound/usb/6fire/firmware.c |   25 ++++++++++++-------------
>  1 files changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
> index 3ebbdec..3b5f517 100644
> --- a/sound/usb/6fire/firmware.c
> +++ b/sound/usb/6fire/firmware.c
> @@ -17,6 +17,7 @@
>  #include <linux/firmware.h>
>  #include <linux/module.h>
>  #include <linux/bitrev.h>
> +#include <linux/kernel.h>
>  
>  #include "firmware.h"
>  #include "chip.h"
> @@ -60,21 +61,19 @@ 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;
>  }
> -- 
> 1.7.6.3
> 
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