#ifndef __USBMIXER_H
#define __USBMIXER_H

#include <sound/info.h>

struct usb_mixer_interface {
	struct snd_usb_audio *chip;
	struct usb_host_interface *hostif;
	struct list_head list;
	unsigned int ignore_ctl_error;
	struct urb *urb;
	/* array[MAX_ID_ELEMS], indexed by unit id */
	struct usb_mixer_elem_list **id_elems;

	/* the usb audio specification version this interface complies to */
	int protocol;

	/* Sound Blaster remote control stuff */
	const struct rc_config *rc_cfg;
	u32 rc_code;
	wait_queue_head_t rc_waitq;
	struct urb *rc_urb;
	struct usb_ctrlrequest *rc_setup_packet;
	u8 rc_buffer[6];
};

#define MAX_CHANNELS	16	/* max logical channels */

enum {
	USB_MIXER_BOOLEAN,
	USB_MIXER_INV_BOOLEAN,
	USB_MIXER_S8,
	USB_MIXER_U8,
	USB_MIXER_S16,
	USB_MIXER_U16,
	USB_MIXER_S32,
	USB_MIXER_U32,
};

typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
					 struct usb_mixer_elem_list *list);
typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem);

struct usb_mixer_elem_list {
	struct usb_mixer_interface *mixer;
	struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */
	struct snd_kcontrol *kctl;
	unsigned int id;
	usb_mixer_elem_dump_func_t dump;
	usb_mixer_elem_resume_func_t resume;
};

struct usb_mixer_elem_info {
	struct usb_mixer_elem_list head;
	unsigned int control;	/* CS or ICN (high byte) */
	unsigned int cmask; /* channel mask bitmap: 0 = master */
	unsigned int idx_off; /* Control index offset */
	unsigned int ch_readonly;
	unsigned int master_readonly;
	int channels;
	int val_type;
	int min, max, res;
	int dBmin, dBmax;
	int cached;
	int cache_val[MAX_CHANNELS];
	u8 initialized;
	void *private_data;
};

int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
			 int ignore_error);
void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);

void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);

int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
				int request, int validx, int value_set);

int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
			      struct snd_kcontrol *kctl);

void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
				 struct usb_mixer_interface *mixer,
				 int unitid);

int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
			  unsigned int size, unsigned int __user *_tlv);

#ifdef CONFIG_PM
int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
#endif

int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
                             int index, int value);

int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
                             int channel, int index, int *value);

extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);

#endif /* __USBMIXER_H */
448c8b79c321e4a1f31f98194e4f6b6cae7'>ppc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/ppc/snd_ps3.c?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>snd_ps3.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;</td><td class='right'>2017-01-30 19:27:10 -0500</td></tr>
<tr><th>committer</th><td>Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;</td><td class='right'>2017-01-31 09:13:49 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/ppc/snd_ps3.c?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>79c6f448c8b79c321e4a1f31f98194e4f6b6cae7</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/ppc/snd_ps3.c?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>370efda701f03cccf21e02bb1fdd3b852547d75c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/ppc/snd_ps3.c?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>sound/ppc/snd_ps3.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/ppc/snd_ps3.c?id=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>0c744ea4f77d72b3dcebb7a8f2684633ec79be88</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/ppc/snd_ps3.c?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7&amp;id2=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>diff</a>)</td></tr></table>
<div class='commit-subject'>tracing: Fix hwlat kthread migration</div><div class='commit-msg'>The hwlat tracer creates a kernel thread at start of the tracer. It is
pinned to a single CPU and will move to the next CPU after each period of
running. If the user modifies the migration thread's affinity, it will not
change after that happens.

The original code created the thread at the first instance it was called,
but later was changed to destroy the thread after the tracer was finished,
and would not be created until the next instance of the tracer was
established. The code that initialized the affinity was only called on the
initial instantiation of the tracer. After that, it was not initialized, and
the previous affinity did not match the current newly created one, making
it appear that the user modified the thread's affinity when it did not, and
the thread failed to migrate again.

Cc: stable@vger.kernel.org
Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>Diffstat</a> (limited to 'sound/ppc/snd_ps3.c')</div><table summary='diffstat' class='diffstat'>