283 lines
6.8 KiB
C
283 lines
6.8 KiB
C
/*
|
|
* 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;
|
|
}
|