#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
#define SOUND_FIREWIRE_LIB_H_INCLUDED

#include <linux/firewire-constants.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <sound/rawmidi.h>

struct fw_unit;

#define FW_GENERATION_MASK	0x00ff
#define FW_FIXED_GENERATION	0x0100
#define FW_QUIET		0x0200

int snd_fw_transaction(struct fw_unit *unit, int tcode,
		       u64 offset, void *buffer, size_t length,
		       unsigned int flags);

/* returns true if retrying the transaction would not make sense */
static inline bool rcode_is_permanent_error(int rcode)
{
	return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
}

void snd_fw_schedule_registration(struct fw_unit *unit,
				  struct delayed_work *dwork);

struct snd_fw_async_midi_port;
typedef int (*snd_fw_async_midi_port_fill)(
				struct snd_rawmidi_substream *substream,
				u8 *buf);

struct snd_fw_async_midi_port {
	struct fw_device *parent;
	struct work_struct work;
	bool idling;
	ktime_t next_ktime;
	bool error;

	u64 addr;
	struct fw_transaction transaction;

	u8 *buf;
	unsigned int len;

	struct snd_rawmidi_substream *substream;
	snd_fw_async_midi_port_fill fill;
	unsigned int consume_bytes;
};

int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
		struct fw_unit *unit, u64 addr, unsigned int len,
		snd_fw_async_midi_port_fill fill);
void snd_fw_async_midi_port_destroy(struct snd_fw_async_midi_port *port);

/**
 * snd_fw_async_midi_port_run - run transactions for the async MIDI port
 * @port: the asynchronous MIDI port
 * @substream: the MIDI substream
 */
static inline void
snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port,
			   struct snd_rawmidi_substream *substream)
{
	if (!port->error) {
		port->substream = substream;
		schedule_work(&port->work);
	}
}

/**
 * snd_fw_async_midi_port_finish - finish the asynchronous MIDI port
 * @port: the asynchronous MIDI port
 */
static inline void
snd_fw_async_midi_port_finish(struct snd_fw_async_midi_port *port)
{
	port->substream = NULL;
	port->error = false;
}

#endif
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/pci?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>pci</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/ymfpci?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>ymfpci</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/ymfpci/ymfpci.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>ymfpci.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='883af14e67e8b8702b5560aa64c888c0cd0bd66c'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:54:39 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:54:39 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/ymfpci/ymfpci.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>883af14e67e8b8702b5560aa64c888c0cd0bd66c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pci/ymfpci/ymfpci.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>74e3a6b53f5fad9f7848ab1b9f6921b7012940a4</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/pci/ymfpci/ymfpci.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>sound/pci/ymfpci/ymfpci.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/ymfpci/ymfpci.h?id=0263d4ebd94b36280608e296cba39b924b6e832b'>0263d4ebd94b36280608e296cba39b924b6e832b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/ymfpci/ymfpci.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c&amp;id2=0263d4ebd94b36280608e296cba39b924b6e832b'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/ymfpci/ymfpci.h?id=aab45453ff5c77200c6da4ac909f7a4392aed17e'>aab45453ff5c77200c6da4ac909f7a4392aed17e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/ymfpci/ymfpci.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c&amp;id2=aab45453ff5c77200c6da4ac909f7a4392aed17e'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'akpm' (patches from Andrew)</div><div class='commit-msg'>Merge fixes from Andrew Morton:
 "26 fixes"

* emailed patches from Andrew Morton &lt;akpm@linux-foundation.org&gt;: (26 commits)
  MAINTAINERS: add Dan Streetman to zbud maintainers
  MAINTAINERS: add Dan Streetman to zswap maintainers
  mm: do not export ioremap_page_range symbol for external module
  mn10300: fix build error of missing fpu_save()
  romfs: use different way to generate fsid for BLOCK or MTD
  frv: add missing atomic64 operations
  mm, page_alloc: fix premature OOM when racing with cpuset mems update
  mm, page_alloc: move cpuset seqcount checking to slowpath
  mm, page_alloc: fix fast-path race with cpuset update or removal
  mm, page_alloc: fix check for NULL preferred_zone
  kernel/panic.c: add missing \n
  fbdev: color map copying bounds checking
  frv: add atomic64_add_unless()
  mm/mempolicy.c: do not put mempolicy before using its nodemask
  radix-tree: fix private list warnings
  Documentation/filesystems/proc.txt: add VmPin
  mm, memcg: do not retry precharge charges
  proc: add a schedule point in proc_pid_readdir()
  mm: alloc_contig: re-allow CMA to compact FS pages
  mm/slub.c: trace free objects at KERN_INFO
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>Diffstat</a> (limited to 'sound/pci/ymfpci/ymfpci.h')</div><table summary='diffstat' class='diffstat'>