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| author | Takashi Iwai <tiwai@suse.de> | 2020-11-23 11:53:26 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-11-23 17:14:27 +0300 |
| commit | 73037c8dc1c8cf994a38fedba4a5af7e6da5e4f1 (patch) | |
| tree | 8b8666cf31004ba0df6c7a08cecab12904fed983 /sound/usb/pcm.c | |
| parent | 953a446b50fd6c68f0a40f0cd79a2a903faf3243 (diff) | |
| download | linux-73037c8dc1c8cf994a38fedba4a5af7e6da5e4f1.tar.xz | |
ALSA: usb-audio: Simplify snd_usb_init_pitch() arguments
A preliminary change for the later big changes. This is a minor code
refactoring to drop the unnecessary arguments that can be retrieved in
a different way.
Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-21-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 38b461bdca86..0998be109af3 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -146,8 +146,7 @@ static struct audioformat *find_substream_format(struct snd_usb_substream *subs) subs->channels, subs); } -static int init_pitch_v1(struct snd_usb_audio *chip, int iface, - struct usb_host_interface *alts, +static int init_pitch_v1(struct snd_usb_audio *chip, struct audioformat *fmt) { struct usb_device *dev = chip->dev; @@ -155,9 +154,7 @@ static int init_pitch_v1(struct snd_usb_audio *chip, int iface, unsigned char data[1]; int err; - if (get_iface_desc(alts)->bNumEndpoints < 1) - return -EINVAL; - ep = get_endpoint(alts, 0)->bEndpointAddress; + ep = fmt->endpoint; data[0] = 1; err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, @@ -166,15 +163,14 @@ static int init_pitch_v1(struct snd_usb_audio *chip, int iface, data, sizeof(data)); if (err < 0) { usb_audio_err(chip, "%d:%d: cannot set enable PITCH\n", - iface, ep); + fmt->iface, ep); return err; } return 0; } -static int init_pitch_v2(struct snd_usb_audio *chip, int iface, - struct usb_host_interface *alts, +static int init_pitch_v2(struct snd_usb_audio *chip, struct audioformat *fmt) { struct usb_device *dev = chip->dev; @@ -188,7 +184,7 @@ static int init_pitch_v2(struct snd_usb_audio *chip, int iface, data, sizeof(data)); if (err < 0) { usb_audio_err(chip, "%d:%d: cannot set enable PITCH (v2)\n", - iface, fmt->altsetting); + fmt->iface, fmt->altsetting); return err; } @@ -198,8 +194,7 @@ static int init_pitch_v2(struct snd_usb_audio *chip, int iface, /* * initialize the pitch control and sample rate */ -int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface, - struct usb_host_interface *alts, +int snd_usb_init_pitch(struct snd_usb_audio *chip, struct audioformat *fmt) { /* if endpoint doesn't have pitch control, bail out */ @@ -209,10 +204,10 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface, switch (fmt->protocol) { case UAC_VERSION_1: default: - return init_pitch_v1(chip, iface, alts, fmt); + return init_pitch_v1(chip, fmt); case UAC_VERSION_2: - return init_pitch_v2(chip, iface, alts, fmt); + return init_pitch_v2(chip, fmt); } } @@ -682,7 +677,7 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) return err; if (subs->need_setup_ep) { - err = snd_usb_init_pitch(chip, fmt->iface, alts, fmt); + err = snd_usb_init_pitch(chip, fmt); if (err < 0) return err; } |