mirror of https://gitee.com/openkylin/linux.git
159 lines
3.9 KiB
C
159 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* oxfw_command.c - a part of driver for OXFW970/971 based devices
|
|
*
|
|
* Copyright (c) 2014 Takashi Sakamoto
|
|
*/
|
|
|
|
#include "oxfw.h"
|
|
|
|
int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
|
|
unsigned int pid, u8 *format, unsigned int len)
|
|
{
|
|
u8 *buf;
|
|
int err;
|
|
|
|
buf = kmalloc(len + 10, GFP_KERNEL);
|
|
if (buf == NULL)
|
|
return -ENOMEM;
|
|
|
|
buf[0] = 0x00; /* CONTROL */
|
|
buf[1] = 0xff; /* UNIT */
|
|
buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */
|
|
buf[3] = 0xc0; /* SINGLE subfunction */
|
|
buf[4] = dir; /* Plug Direction */
|
|
buf[5] = 0x00; /* UNIT */
|
|
buf[6] = 0x00; /* PCR (Isochronous Plug) */
|
|
buf[7] = 0xff & pid; /* Plug ID */
|
|
buf[8] = 0xff; /* Padding */
|
|
buf[9] = 0xff; /* Support status in response */
|
|
memcpy(buf + 10, format, len);
|
|
|
|
/* do transaction and check buf[1-8] are the same against command */
|
|
err = fcp_avc_transaction(unit, buf, len + 10, buf, len + 10,
|
|
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
|
|
BIT(6) | BIT(7) | BIT(8));
|
|
if (err < 0)
|
|
;
|
|
else if (err < len + 10)
|
|
err = -EIO;
|
|
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
|
err = -ENXIO;
|
|
else if (buf[0] == 0x0a) /* REJECTED */
|
|
err = -EINVAL;
|
|
else
|
|
err = 0;
|
|
|
|
kfree(buf);
|
|
|
|
return err;
|
|
}
|
|
|
|
int avc_stream_get_format(struct fw_unit *unit,
|
|
enum avc_general_plug_dir dir, unsigned int pid,
|
|
u8 *buf, unsigned int *len, unsigned int eid)
|
|
{
|
|
unsigned int subfunc;
|
|
int err;
|
|
|
|
if (eid == 0xff)
|
|
subfunc = 0xc0; /* SINGLE */
|
|
else
|
|
subfunc = 0xc1; /* LIST */
|
|
|
|
buf[0] = 0x01; /* STATUS */
|
|
buf[1] = 0xff; /* UNIT */
|
|
buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */
|
|
buf[3] = subfunc; /* SINGLE or LIST */
|
|
buf[4] = dir; /* Plug Direction */
|
|
buf[5] = 0x00; /* Unit */
|
|
buf[6] = 0x00; /* PCR (Isochronous Plug) */
|
|
buf[7] = 0xff & pid; /* Plug ID */
|
|
buf[8] = 0xff; /* Padding */
|
|
buf[9] = 0xff; /* support status in response */
|
|
buf[10] = 0xff & eid; /* entry ID for LIST subfunction */
|
|
buf[11] = 0xff; /* padding */
|
|
|
|
/* do transaction and check buf[1-7] are the same against command */
|
|
err = fcp_avc_transaction(unit, buf, 12, buf, *len,
|
|
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
|
|
BIT(6) | BIT(7));
|
|
if (err < 0)
|
|
;
|
|
else if (err < 12)
|
|
err = -EIO;
|
|
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
|
err = -ENXIO;
|
|
else if (buf[0] == 0x0a) /* REJECTED */
|
|
err = -EINVAL;
|
|
else if (buf[0] == 0x0b) /* IN TRANSITION */
|
|
err = -EAGAIN;
|
|
/* LIST subfunction has entry ID */
|
|
else if ((subfunc == 0xc1) && (buf[10] != eid))
|
|
err = -EIO;
|
|
if (err < 0)
|
|
goto end;
|
|
|
|
/* keep just stream format information */
|
|
if (subfunc == 0xc0) {
|
|
memmove(buf, buf + 10, err - 10);
|
|
*len = err - 10;
|
|
} else {
|
|
memmove(buf, buf + 11, err - 11);
|
|
*len = err - 11;
|
|
}
|
|
|
|
err = 0;
|
|
end:
|
|
return err;
|
|
}
|
|
|
|
int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
|
|
enum avc_general_plug_dir dir,
|
|
unsigned short pid)
|
|
{
|
|
unsigned int sfc;
|
|
u8 *buf;
|
|
int err;
|
|
|
|
for (sfc = 0; sfc < CIP_SFC_COUNT; sfc++) {
|
|
if (amdtp_rate_table[sfc] == rate)
|
|
break;
|
|
}
|
|
if (sfc == CIP_SFC_COUNT)
|
|
return -EINVAL;
|
|
|
|
buf = kzalloc(8, GFP_KERNEL);
|
|
if (buf == NULL)
|
|
return -ENOMEM;
|
|
|
|
buf[0] = 0x02; /* SPECIFIC INQUIRY */
|
|
buf[1] = 0xff; /* UNIT */
|
|
if (dir == AVC_GENERAL_PLUG_DIR_IN)
|
|
buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
|
|
else
|
|
buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */
|
|
buf[3] = 0xff & pid; /* plug id */
|
|
buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */
|
|
buf[5] = 0x07 & sfc; /* FDF-hi. AM824, frequency */
|
|
buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used) */
|
|
buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */
|
|
|
|
/* do transaction and check buf[1-5] are the same against command */
|
|
err = fcp_avc_transaction(unit, buf, 8, buf, 8,
|
|
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
|
|
if (err < 0)
|
|
;
|
|
else if (err < 8)
|
|
err = -EIO;
|
|
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
|
err = -ENXIO;
|
|
if (err < 0)
|
|
goto end;
|
|
|
|
err = 0;
|
|
end:
|
|
kfree(buf);
|
|
return err;
|
|
}
|