Release 4.8 sound/firewire/bebob/bebob_command.c

Directory: sound/firewire/bebob
/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 251 100.00% 1 100.00%
Total 251 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 273 100.00% 1 100.00%
Total 273 100.00% 1 100.00%


static inline void

avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr)
{
	buf[1] = addr[0];
	memcpy(buf + 4, addr + 1, 5);
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 38 100.00% 1 100.00%
Total 38 100.00% 1 100.00%


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 */
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 58 100.00% 1 100.00%
Total 58 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 210 100.00% 1 100.00%
Total 210 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 191 100.00% 1 100.00%
Total 191 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 230 100.00% 1 100.00%
Total 230 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 209 100.00% 1 100.00%
Total 209 100.00% 1 100.00%



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;
}
Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 276 100.00% 1 100.00%
Total 276 100.00% 1 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
takashi sakamoto takashi sakamoto 1740 100.00% 2 100.00%
Total 1740 100.00% 2 100.00%
  Directory: sound/firewire/bebob

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
takashi sakamoto	takashi sakamoto	251	100.00%	1	100.00%
	Total	251	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.8 sound/firewire/bebob/bebob_command.c

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