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[ALSA] usb-audio - change quirk type handling

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USB generic driver
Make the quirk type an enum instead of a #defined integer, and use a
table for the quirk constructor functions instead of a big switch
statement.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
This commit is contained in:
Clemens Ladisch
2005-07-25 16:19:10 +02:00
committed by Jaroslav Kysela
parent f38275fe99
commit 854af9578c
2 changed files with 53 additions and 41 deletions
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59
sound/usb/usbaudio.c
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@@ -2735,7 +2735,8 @@ static int create_standard_interface_quirk(snd_usb_audio_t *chip,
* to detect the sample rate is by looking at wMaxPacketSize.
*/
static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
struct usb_interface *iface)
struct usb_interface *iface,
const snd_usb_audio_quirk_t *quirk)
{
static const struct audioformat ua_format = {
.format = SNDRV_PCM_FORMAT_S24_3LE,
@@ -2826,7 +2827,9 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
/*
* Create a stream for an Edirol UA-1000 interface.
*/
static int create_ua1000_quirk(snd_usb_audio_t *chip, struct usb_interface *iface)
static int create_ua1000_quirk(snd_usb_audio_t *chip,
struct usb_interface *iface,
const snd_usb_audio_quirk_t *quirk)
{
static const struct audioformat ua1000_format = {
.format = SNDRV_PCM_FORMAT_S32_LE,
@@ -2903,6 +2906,13 @@ static int create_composite_quirk(snd_usb_audio_t *chip,
return 0;
}
static int ignore_interface_quirk(snd_usb_audio_t *chip,
struct usb_interface *iface,
const snd_usb_audio_quirk_t *quirk)
{
return 0;
}
/*
* boot quirks
@@ -2965,29 +2975,28 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip,
struct usb_interface *iface,
const snd_usb_audio_quirk_t *quirk)
{
switch (quirk->type) {
case QUIRK_MIDI_FIXED_ENDPOINT:
case QUIRK_MIDI_YAMAHA:
case QUIRK_MIDI_MIDIMAN:
case QUIRK_MIDI_NOVATION:
case QUIRK_MIDI_RAW:
case QUIRK_MIDI_EMAGIC:
case QUIRK_MIDI_MIDITECH:
return snd_usb_create_midi_interface(chip, iface, quirk);
case QUIRK_COMPOSITE:
return create_composite_quirk(chip, iface, quirk);
case QUIRK_AUDIO_FIXED_ENDPOINT:
return create_fixed_stream_quirk(chip, iface, quirk);
case QUIRK_AUDIO_STANDARD_INTERFACE:
case QUIRK_MIDI_STANDARD_INTERFACE:
return create_standard_interface_quirk(chip, iface, quirk);
case QUIRK_AUDIO_EDIROL_UA700_UA25:
return create_ua700_ua25_quirk(chip, iface);
case QUIRK_AUDIO_EDIROL_UA1000:
return create_ua1000_quirk(chip, iface);
case QUIRK_IGNORE_INTERFACE:
return 0;
default:
typedef int (*quirk_func_t)(snd_usb_audio_t *, struct usb_interface *,
const snd_usb_audio_quirk_t *);
static const quirk_func_t quirk_funcs[] = {
[QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
[QUIRK_COMPOSITE] = create_composite_quirk,
[QUIRK_MIDI_STANDARD_INTERFACE] = snd_usb_create_midi_interface,
[QUIRK_MIDI_FIXED_ENDPOINT] = snd_usb_create_midi_interface,
[QUIRK_MIDI_YAMAHA] = snd_usb_create_midi_interface,
[QUIRK_MIDI_MIDIMAN] = snd_usb_create_midi_interface,
[QUIRK_MIDI_NOVATION] = snd_usb_create_midi_interface,
[QUIRK_MIDI_RAW] = snd_usb_create_midi_interface,
[QUIRK_MIDI_EMAGIC] = snd_usb_create_midi_interface,
[QUIRK_MIDI_MIDITECH] = snd_usb_create_midi_interface,
[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_interface_quirk,
[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
[QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk,
[QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
};
if (quirk->type < QUIRK_TYPE_COUNT) {
return quirk_funcs[quirk->type](chip, iface, quirk);
} else {
snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
return -ENXIO;
}