/*
* oxfw_command.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#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) && (err < len + 10))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
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) && (err < 10))
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;
/* 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) && (err < 8))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
if (err < 0)
goto end;
err = 0;
end:
kfree(buf);
return err;
}
ted='selected'>unifiedssdiff stat only cpu/hotplug: Remove obsolete cpu hotplug register/unregister functions
hotcpu_notifier(), cpu_notifier(), __hotcpu_notifier(), __cpu_notifier(),
register_hotcpu_notifier(), register_cpu_notifier(),
__register_hotcpu_notifier(), __register_cpu_notifier(),
unregister_hotcpu_notifier(), unregister_cpu_notifier(),
__unregister_hotcpu_notifier(), __unregister_cpu_notifier()
are unused now. Remove them and all related code.
Remove also the now pointless cpu notifier error injection mechanism. The
states can be executed step by step and error rollback is the same as cpu
down, so any state transition can be tested w/o requiring the notifier
error injection.
Some CPU hotplug states are kept as they are (ab)used for hotplug state
tracking.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20161221192112.005642358@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>