Release 4.11 drivers/usb/host/whci/int.c
/*
* Wireless Host Controller (WHC) interrupt handling.
*
* 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/uwb/umc.h>
#include "../../wusbcore/wusbhc.h"
#include "whcd.h"
static void transfer_done(struct whc *whc)
{
queue_work(whc->workqueue, &whc->async_work);
queue_work(whc->workqueue, &whc->periodic_work);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
irqreturn_t whc_int_handler(struct usb_hcd *hcd)
{
struct wusbhc *wusbhc = usb_hcd_to_wusbhc(hcd);
struct whc *whc = wusbhc_to_whc(wusbhc);
u32 sts;
sts = le_readl(whc->base + WUSBSTS);
if (!(sts & WUSBSTS_INT_MASK))
return IRQ_NONE;
le_writel(sts & WUSBSTS_INT_MASK, whc->base + WUSBSTS);
if (sts & WUSBSTS_GEN_CMD_DONE)
wake_up(&whc->cmd_wq);
if (sts & WUSBSTS_HOST_ERR)
dev_err(&whc->umc->dev, "FIXME: host system error\n");
if (sts & WUSBSTS_ASYNC_SCHED_SYNCED)
wake_up(&whc->async_list_wq);
if (sts & WUSBSTS_PERIODIC_SCHED_SYNCED)
wake_up(&whc->periodic_list_wq);
if (sts & WUSBSTS_DNTS_INT)
queue_work(whc->workqueue, &whc->dn_work);
/*
* A transfer completed (see [WHCI] section 4.7.1.2 for when
* this occurs).
*/
if (sts & (WUSBSTS_INT | WUSBSTS_ERR_INT))
transfer_done(whc);
return IRQ_HANDLED;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 166 | 100.00% | 1 | 100.00% |
| Total | 166 | 100.00% | 1 | 100.00% |
static int process_dn_buf(struct whc *whc)
{
struct wusbhc *wusbhc = &whc->wusbhc;
struct dn_buf_entry *dn;
int processed = 0;
for (dn = whc->dn_buf; dn < whc->dn_buf + WHC_N_DN_ENTRIES; dn++) {
if (dn->status & WHC_DN_STATUS_VALID) {
wusbhc_handle_dn(wusbhc, dn->src_addr,
(struct wusb_dn_hdr *)dn->dn_data,
dn->msg_size);
dn->status &= ~WHC_DN_STATUS_VALID;
processed++;
}
}
return processed;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 97 | 100.00% | 1 | 100.00% |
| Total | 97 | 100.00% | 1 | 100.00% |
void whc_dn_work(struct work_struct *work)
{
struct whc *whc = container_of(work, struct whc, dn_work);
int processed;
do {
processed = process_dn_buf(whc);
} while (processed);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 43 | 100.00% | 1 | 100.00% |
| Total | 43 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 354 | 100.00% | 1 | 100.00% |
| Total | 354 | 100.00% | 1 | 100.00% |
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