/*
 * Wireless Host Controller (WHC) hardware access helpers.
 *
 * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/uwb/umc.h>

#include "../../wusbcore/wusbhc.h"

#include "whcd.h"

void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val)
{
	unsigned long flags;
	u32 cmd;

	spin_lock_irqsave(&whc->lock, flags);

	cmd = le_readl(whc->base + WUSBCMD);
	cmd = (cmd & ~mask) | val;
	le_writel(cmd, whc->base + WUSBCMD);

	spin_unlock_irqrestore(&whc->lock, flags);
}

/**
 * whc_do_gencmd - start a generic command via the WUSBGENCMDSTS register
 * @whc:    the WHCI HC
 * @cmd:    command to start.
 * @params: parameters for the command (the WUSBGENCMDPARAMS register value).
 * @addr:   pointer to any data for the command (may be NULL).
 * @len:    length of the data (if any).
 */
int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
{
	unsigned long flags;
	dma_addr_t dma_addr;
	int t;
	int ret = 0;

	mutex_lock(&whc->mutex);

	/* Wait for previous command to complete. */
	t = wait_event_timeout(whc->cmd_wq,
			       (le_readl(whc->base + WUSBGENCMDSTS) & WUSBGENCMDSTS_ACTIVE) == 0,
			       WHC_GENCMD_TIMEOUT_MS);
	if (t == 0) {
		dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n",
			le_readl(whc->base + WUSBGENCMDSTS),
			le_readl(whc->base + WUSBGENCMDPARAMS));
		ret = -ETIMEDOUT;
		goto out;
	}

	if (addr) {
		memcpy(whc->gen_cmd_buf, addr, len);
		dma_addr = whc->gen_cmd_buf_dma;
	} else
		dma_addr = 0;

	/* Poke registers to start cmd. */
	spin_lock_irqsave(&whc->lock, flags);

	le_writel(params, whc->base + WUSBGENCMDPARAMS);
	le_writeq(dma_addr, whc->base + WUSBGENADDR);

	le_writel(WUSBGENCMDSTS_ACTIVE | WUSBGENCMDSTS_IOC | cmd,
		  whc->base + WUSBGENCMDSTS);

	spin_unlock_irqrestore(&whc->lock, flags);
out:
	mutex_unlock(&whc->mutex);

	return ret;
}

/**
 * whc_hw_error - recover from a hardware error
 * @whc:    the WHCI HC that broke.
 * @reason: a description of the failure.
 *
 * Recover from broken hardware with a full reset.
 */
void whc_hw_error(struct whc *whc, const char *reason)
{
	struct wusbhc *wusbhc = &whc->wusbhc;

	dev_err(&whc->umc->dev, "hardware error: %s\n", reason);
	wusbhc_reset_all(wusbhc);
}
3bc5c1e89b43db72'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/irda?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>irda</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/irda/irias_object.c?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>irias_object.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='67d35e70af9cabb663c827e03bc5c1e89b43db72'/><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>Fam Zheng &lt;famz@redhat.com&gt;</td><td class='right'>2017-01-13 11:40:01 +0800</td></tr>
<tr><th>committer</th><td>Martin K. Petersen &lt;martin.petersen@oracle.com&gt;</td><td class='right'>2017-01-16 15:43:02 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/irda/irias_object.c?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>67d35e70af9cabb663c827e03bc5c1e89b43db72</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/irda/irias_object.c?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>ef130aab90e74e98ca4599f12011a7d80d3aa059</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/irda/irias_object.c?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>net/irda/irias_object.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/irda/irias_object.c?id=cd60be4916ae689387d04b86b6fc15931e4c95ae'>cd60be4916ae689387d04b86b6fc15931e4c95ae</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/irda/irias_object.c?id=67d35e70af9cabb663c827e03bc5c1e89b43db72&amp;id2=cd60be4916ae689387d04b86b6fc15931e4c95ae'>diff</a>)</td></tr></table>
<div class='commit-subject'>scsi: libfc: Fix variable name in fc_set_wwpn</div><div class='commit-msg'>The parameter name should be wwpn instead of wwnn.

Signed-off-by: Fam Zheng &lt;famz@redhat.com&gt;
Acked-by: Johannes Thumshirn &lt;jth@kernel.org&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=67d35e70af9cabb663c827e03bc5c1e89b43db72'>Diffstat</a> (limited to 'net/irda/irias_object.c')</div><table summary='diffstat' class='diffstat'>