#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
er/cpupower/README?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/tools/power/cpupower/README?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/tools/power/cpupower/README'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/power?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>power</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/power/cpupower?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>cpupower</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/power/cpupower/README?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764'>README</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/power/cpupower/README?h=nds-private-remove&amp;id=dd192494e6ed5fb29e75c82cc8dc40f9e7f1f764&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>