/*
 * Load Analog Devices SigmaStudio firmware files
 *
 * Copyright 2009-2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/export.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/unaligned.h>

#include "sigmadsp.h"

static int sigmadsp_write_i2c(void *control_data,
	unsigned int addr, const uint8_t data[], size_t len)
{
	uint8_t *buf;
	int ret;

	buf = kzalloc(2 + len, GFP_KERNEL | GFP_DMA);
	if (!buf)
		return -ENOMEM;

	put_unaligned_be16(addr, buf);
	memcpy(buf + 2, data, len);

	ret = i2c_master_send(control_data, buf, len + 2);

	kfree(buf);

	if (ret < 0)
		return ret;

	return 0;
}

static int sigmadsp_read_i2c(void *control_data,
	unsigned int addr, uint8_t data[], size_t len)
{
	struct i2c_client *client = control_data;
	struct i2c_msg msgs[2];
	uint8_t buf[2];
	int ret;

	put_unaligned_be16(addr, buf);

	msgs[0].addr = client->addr;
	msgs[0].len = sizeof(buf);
	msgs[0].buf = buf;
	msgs[0].flags = 0;

	msgs[1].addr = client->addr;
	msgs[1].len = len;
	msgs[1].buf = data;
	msgs[1].flags = I2C_M_RD;

	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
	if (ret < 0)
		return ret;
	else if (ret != ARRAY_SIZE(msgs))
		return -EIO;
	return 0;
}

/**
 * devm_sigmadsp_init_i2c() - Initialize SigmaDSP instance
 * @client: The parent I2C device
 * @ops: The sigmadsp_ops to use for this instance
 * @firmware_name: Name of the firmware file to load
 *
 * Allocates a SigmaDSP instance and loads the specified firmware file.
 *
 * Returns a pointer to a struct sigmadsp on success, or a PTR_ERR() on error.
 */
struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client,
	const struct sigmadsp_ops *ops,	const char *firmware_name)
{
	struct sigmadsp *sigmadsp;

	sigmadsp = devm_sigmadsp_init(&client->dev, ops, firmware_name);
	if (IS_ERR(sigmadsp))
		return sigmadsp;

	sigmadsp->control_data = client;
	sigmadsp->write = sigmadsp_write_i2c;
	sigmadsp->read = sigmadsp_read_i2c;

	return sigmadsp;
}
EXPORT_SYMBOL_GPL(devm_sigmadsp_init_i2c);

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("SigmaDSP I2C firmware loader");
MODULE_LICENSE("GPL");
href='/cgit.cgi/linux/net-next.git/diff/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/sctp/sm_sideeffect.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sctp?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>sctp</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>sm_sideeffect.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='396bf4cd835e62d70fad4a03a8963e61f19021f2'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:16:23 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:16:23 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>396bf4cd835e62d70fad4a03a8963e61f19021f2</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/sctp/sm_sideeffect.c?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>79ac8f33554260fea1a8d43e6f8c4c5460115f45</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>net/sctp/sm_sideeffect.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c'>d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2&amp;id2=d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=7c2cf1c4615cc2f576d0604406cdf0065f00b83b'>7c2cf1c4615cc2f576d0604406cdf0065f00b83b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/sctp/sm_sideeffect.c?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2&amp;id2=7c2cf1c4615cc2f576d0604406cdf0065f00b83b'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6</div><div class='commit-msg'>Pull crypto fixes from Herbert Xu:

 - use-after-free in algif_aead

 - modular aesni regression when pcbc is modular but absent

 - bug causing IO page faults in ccp

 - double list add in ccp

 - NULL pointer dereference in qat (two patches)

 - panic in chcr

 - NULL pointer dereference in chcr

 - out-of-bound access in chcr

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: chcr - Fix key length for RFC4106
  crypto: algif_aead - Fix kernel panic on list_del
  crypto: aesni - Fix failure when pcbc module is absent
  crypto: ccp - Fix double add when creating new DMA command
  crypto: ccp - Fix DMA operations when IOMMU is enabled
  crypto: chcr - Check device is allocated before use
  crypto: chcr - Fix panic on dma_unmap_sg
  crypto: qat - zero esram only for DH85x devices
  crypto: qat - fix bar discovery for c62x
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>Diffstat</a> (limited to 'net/sctp/sm_sideeffect.c')</div><table summary='diffstat' class='diffstat'>