Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 282 insertions, 0 deletions

diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c
new file mode 100644
index 000000000000..9402cc15dbc1
--- /dev/null
+++ b/sound/firewire/bebob/bebob_command.c
@@ -0,0 +1,282 @@
+/*
+ * bebob_command.c - driver for BeBoB based devices
+ *
+ * Copyright (c) 2013-2014 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id,
+			   unsigned int fb_id, unsigned int num)
+{
+	u8 *buf;
+	int err;
+
+	buf = kzalloc(12, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	buf[0]  = 0x00;		/* AV/C CONTROL */
+	buf[1]  = 0x08 | (0x07 & subunit_id);	/* AUDIO SUBUNIT ID */
+	buf[2]  = 0xb8;		/* FUNCTION BLOCK  */
+	buf[3]  = 0x80;		/* type is 'selector'*/
+	buf[4]  = 0xff & fb_id;	/* function block id */
+	buf[5]  = 0x10;		/* control attribute is CURRENT */
+	buf[6]  = 0x02;		/* selector length is 2 */
+	buf[7]  = 0xff & num;	/* input function block plug number */
+	buf[8]  = 0x01;		/* control selector is SELECTOR_CONTROL */
+
+	err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+				  BIT(6) | BIT(7) | BIT(8));
+	if (err > 0 && err < 9)
+		err = -EIO;
+	else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a) /* REJECTED */
+		err = -EINVAL;
+	else if (err > 0)
+		err = 0;
+
+	kfree(buf);
+	return err;
+}
+
+int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id,
+			   unsigned int fb_id, unsigned int *num)
+{
+	u8 *buf;
+	int err;
+
+	buf = kzalloc(12, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	buf[0]  = 0x01;		/* AV/C STATUS */
+	buf[1]  = 0x08 | (0x07 & subunit_id);	/* AUDIO SUBUNIT ID */
+	buf[2]  = 0xb8;		/* FUNCTION BLOCK */
+	buf[3]  = 0x80;		/* type is 'selector'*/
+	buf[4]  = 0xff & fb_id;	/* function block id */
+	buf[5]  = 0x10;		/* control attribute is CURRENT */
+	buf[6]  = 0x02;		/* selector length is 2 */
+	buf[7]  = 0xff;		/* input function block plug number */
+	buf[8]  = 0x01;		/* control selector is SELECTOR_CONTROL */
+
+	err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+				  BIT(6) | BIT(8));
+	if (err > 0 && err < 9)
+		err = -EIO;
+	else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a) /* REJECTED */
+		err = -EINVAL;
+	else if (buf[0] == 0x0b) /* IN TRANSITION */
+		err = -EAGAIN;
+	if (err < 0)
+		goto end;
+
+	*num = buf[7];
+	err = 0;
+end:
+	kfree(buf);
+	return err;
+}
+
+static inline void
+avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr)
+{
+	buf[1] = addr[0];
+	memcpy(buf + 4, addr + 1, 5);
+}
+
+static inline void
+avc_bridgeco_fill_plug_info_extension_command(u8 *buf, u8 *addr,
+					      unsigned int itype)
+{
+	buf[0] = 0x01;	/* AV/C STATUS */
+	buf[2] = 0x02;	/* AV/C GENERAL PLUG INFO */
+	buf[3] = 0xc0;	/* BridgeCo extension */
+	avc_bridgeco_fill_extension_addr(buf, addr);
+	buf[9] = itype;	/* info type */
+}
+
+int avc_bridgeco_get_plug_type(struct fw_unit *unit,
+			       u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+			       enum avc_bridgeco_plug_type *type)
+{
+	u8 *buf;
+	int err;
+
+	buf = kzalloc(12, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	/* Info type is 'plug type'. */
+	avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x00);
+
+	err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+				  BIT(6) | BIT(7) | BIT(9));
+	if ((err >= 0) && (err < 8))
+		err = -EIO;
+	else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a) /* REJECTED */
+		err = -EINVAL;
+	else if (buf[0] == 0x0b) /* IN TRANSITION */
+		err = -EAGAIN;
+	if (err < 0)
+		goto end;
+
+	*type = buf[10];
+	err = 0;
+end:
+	kfree(buf);
+	return err;
+}
+
+int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
+				 u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+				 u8 *buf, unsigned int len)
+{
+	int err;
+
+	/* Info type is 'channel position'. */
+	avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x03);
+
+	err = fcp_avc_transaction(unit, buf, 12, buf, 256,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) |
+				  BIT(5) | BIT(6) | BIT(7) | BIT(9));
+	if ((err >= 0) && (err < 8))
+		err = -EIO;
+	else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a) /* REJECTED */
+		err = -EINVAL;
+	else if (buf[0] == 0x0b) /* IN TRANSITION */
+		err = -EAGAIN;
+	if (err < 0)
+		goto end;
+
+	/* Pick up specific data. */
+	memmove(buf, buf + 10, err - 10);
+	err = 0;
+end:
+	return err;
+}
+
+int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
+				       u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+				       unsigned int id, u8 *type)
+{
+	u8 *buf;
+	int err;
+
+	/* section info includes charactors but this module don't need it */
+	buf = kzalloc(12, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	/* Info type is 'section info'. */
+	avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x07);
+	buf[10] = 0xff & ++id;	/* section id */
+
+	err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+				  BIT(6) | BIT(7) | BIT(9) | BIT(10));
+	if ((err >= 0) && (err < 8))
+		err = -EIO;
+	else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a) /* REJECTED */
+		err = -EINVAL;
+	else if (buf[0] == 0x0b) /* IN TRANSITION */
+		err = -EAGAIN;
+	if (err < 0)
+		goto end;
+
+	*type = buf[11];
+	err = 0;
+end:
+	kfree(buf);
+	return err;
+}
+
+int avc_bridgeco_get_plug_input(struct fw_unit *unit,
+				u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7])
+{
+	int err;
+	u8 *buf;
+
+	buf = kzalloc(18, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	/* Info type is 'plug input'. */
+	avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x05);
+
+	err = fcp_avc_transaction(unit, buf, 16, buf, 16,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+				  BIT(6) | BIT(7));
+	if ((err >= 0) && (err < 8))
+		err = -EIO;
+	else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a) /* REJECTED */
+		err = -EINVAL;
+	else if (buf[0] == 0x0b) /* IN TRANSITION */
+		err = -EAGAIN;
+	if (err < 0)
+		goto end;
+
+	memcpy(input, buf + 10, 5);
+	err = 0;
+end:
+	kfree(buf);
+	return err;
+}
+
+int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
+				   u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf,
+				   unsigned int *len, unsigned int eid)
+{
+	int err;
+
+	/* check given buffer */
+	if ((buf == NULL) || (*len < 12)) {
+		err = -EINVAL;
+		goto end;
+	}
+
+	buf[0] = 0x01;	/* AV/C STATUS */
+	buf[2] = 0x2f;	/* AV/C STREAM FORMAT SUPPORT */
+	buf[3] = 0xc1;	/* Bridgeco extension - List Request */
+	avc_bridgeco_fill_extension_addr(buf, addr);
+	buf[10] = 0xff & eid;	/* Entry ID */
+
+	err = fcp_avc_transaction(unit, buf, 12, buf, *len,
+				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+				  BIT(6) | BIT(7) | BIT(10));
+	if ((err >= 0) && (err < 12))
+		err = -EIO;
+	else if (buf[0] == 0x08)        /* NOT IMPLEMENTED */
+		err = -ENOSYS;
+	else if (buf[0] == 0x0a)        /* REJECTED */
+		err = -EINVAL;
+	else if (buf[0] == 0x0b)        /* IN TRANSITION */
+		err = -EAGAIN;
+	else if (buf[10] != eid)
+		err = -EIO;
+	if (err < 0)
+		goto end;
+
+	/* Pick up 'stream format info'. */
+	memmove(buf, buf + 11, err - 11);
+	*len = err - 11;
+	err = 0;
+end:
+	return err;
+}