From b9c196e1452e1d4cbf0a1499f1e9c1b3edf59320 Mon Sep 17 00:00:00 2001 From: Phillip Michael Jordan Date: Tue, 5 Aug 2008 11:01:00 +0200 Subject: ALSA: snd_usb_audio: fix SB Extigy IR Remote regression The support for the SB Extigy's remote seems to be broken in all recent ALSA versions, including 1.0.17. The driver detects the event correctly, then submits a URB to query the RC code. On the Extigy, the URB is submitted with a length of 2 bytes. My hardware, however, only replies with 1 byte, containing the correct RC button code. The current implementation discards this as being too short. (line 1784 of usbmixer.c) This patch specifies a "minimum packet length" in the remote control configuration. I've left the values for the Audigy 2/Live! the same as the packet length, as I'm assuming the existing code works with them. (I don't have the hardware to confirm) This fixes the Extigy RC support, e.g. for use with Lirc. Signed-off-by: Phillip Michael Jordan Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usbmixer.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'sound/usb/usbmixer.c') diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c index 89c63d073cc..5f98bee0695 100644 --- a/sound/usb/usbmixer.c +++ b/sound/usb/usbmixer.c @@ -59,12 +59,13 @@ static const struct rc_config { u8 offset; u8 length; u8 packet_length; + u8 min_packet_length; /* minimum accepted length of the URB result */ u8 mute_mixer_id; u32 mute_code; } rc_configs[] = { - { USB_ID(0x041e, 0x3000), 0, 1, 2, 18, 0x0013 }, /* Extigy */ - { USB_ID(0x041e, 0x3020), 2, 1, 6, 18, 0x0013 }, /* Audigy 2 NX */ - { USB_ID(0x041e, 0x3040), 2, 2, 6, 2, 0x6e91 }, /* Live! 24-bit */ + { USB_ID(0x041e, 0x3000), 0, 1, 2, 1, 18, 0x0013 }, /* Extigy */ + { USB_ID(0x041e, 0x3020), 2, 1, 6, 6, 18, 0x0013 }, /* Audigy 2 NX */ + { USB_ID(0x041e, 0x3040), 2, 2, 6, 6, 2, 0x6e91 }, /* Live! 24-bit */ }; struct usb_mixer_interface { @@ -1781,7 +1782,7 @@ static void snd_usb_soundblaster_remote_complete(struct urb *urb) const struct rc_config *rc = mixer->rc_cfg; u32 code; - if (urb->status < 0 || urb->actual_length < rc->packet_length) + if (urb->status < 0 || urb->actual_length < rc->min_packet_length) return; code = mixer->rc_buffer[rc->offset]; -- cgit v1.2.3-18-g5258 From 5e246b850df563224be26f1d409cf66fd6c968df Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 8 Aug 2008 17:12:47 +0200 Subject: ALSA: Kill snd_assert() in other places Kill snd_assert() in other places, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usbmixer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sound/usb/usbmixer.c') diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c index 5f98bee0695..6621fad8c5f 100644 --- a/sound/usb/usbmixer.c +++ b/sound/usb/usbmixer.c @@ -1389,7 +1389,8 @@ static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl struct usb_mixer_elem_info *cval = kcontrol->private_data; char **itemlist = (char **)kcontrol->private_value; - snd_assert(itemlist, return -EINVAL); + if (snd_BUG_ON(!itemlist)) + return -EINVAL; uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 1; uinfo->value.enumerated.items = cval->max; -- cgit v1.2.3-18-g5258 From 7a9b8063cf7d78d7de4f2555357101087548c699 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 13 Aug 2008 15:40:53 +0200 Subject: ALSA: usb-audio - Add ignore_ctl_error parameter Added the ignore_ctl_error parameter to enable/disable the control-error handling for mixer interfaces. It was a hard-coded ifdef, and now you can change it more easily. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usbmixer.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'sound/usb/usbmixer.c') diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c index 6621fad8c5f..a49246113e7 100644 --- a/sound/usb/usbmixer.c +++ b/sound/usb/usbmixer.c @@ -2014,7 +2014,8 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, } } -int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) +int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, + int ignore_error) { static struct snd_device_ops dev_ops = { .dev_free = snd_usb_mixer_dev_free @@ -2029,9 +2030,7 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) return -ENOMEM; mixer->chip = chip; mixer->ctrlif = ctrlif; -#ifdef IGNORE_CTL_ERROR - mixer->ignore_ctl_error = 1; -#endif + mixer->ignore_ctl_error = ignore_error; mixer->id_elems = kcalloc(256, sizeof(*mixer->id_elems), GFP_KERNEL); if (!mixer->id_elems) { kfree(mixer); -- cgit v1.2.3-18-g5258