On Sun, 29 Apr 2018 08:50:23 +0200,
Takashi Sakamoto wrote:
>
> In former commits, proxy structure get members for cache of stream
> formats. This commit fills the cache with stream formats at current mode
> of sampling transmission frequency.
>
> Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
> ---
> sound/firewire/dice/dice-stream.c | 76 +++++++++++++++++++++++++++++++++++++++
> sound/firewire/dice/dice.c | 4 +++
> sound/firewire/dice/dice.h | 3 ++
> 3 files changed, 83 insertions(+)
>
> diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
> index 928a255bfc35..2a9f0cd994a5 100644
> --- a/sound/firewire/dice/dice-stream.c
> +++ b/sound/firewire/dice/dice-stream.c
> @@ -30,6 +30,24 @@ const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT] = {
> [6] = 192000,
> };
>
> +int snd_dice_stream_get_rate_mode(struct snd_dice *dice, unsigned int rate,
> + unsigned int *mode)
> +{
> + int i;
> +
> + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); i++) {
> + if (!(dice->clock_caps & BIT(i)))
> + continue;
> + if (snd_dice_rates[i] != rate)
> + continue;
> +
> + *mode = (i - 1) / 2;
What if i=0? It'll be a negative value?
thanks,
Takashi
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