#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/timer.h>
MODULE_DESCRIPTION("SL811HS USB Host Controller Driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sl811-hcd");
#define DRIVER_VERSION "19 May 2005"
sl811->port1 = (1 << USB_PORT_FEAT_POWER);
sl811->irq_enable = SL11H_INTMASK_INSRMV;
- hcd->self.controller->power.power_state = PMSG_ON;
} else {
sl811->port1 = 0;
sl811->irq_enable = 0;
hcd->state = HC_STATE_HALT;
- hcd->self.controller->power.power_state = PMSG_SUSPEND;
}
sl811->ctrl1 = 0;
sl811_write(sl811, SL11H_IRQ_ENABLE, 0);
struct sl811 *sl811,
struct sl811h_ep *ep,
struct urb *urb,
- struct pt_regs *regs,
int status
) __releases(sl811->lock) __acquires(sl811->lock)
{
if (usb_pipecontrol(urb->pipe))
ep->nextpid = USB_PID_SETUP;
- spin_lock(&urb->lock);
- if (urb->status == -EINPROGRESS)
- urb->status = status;
- urb->hcpriv = NULL;
- spin_unlock(&urb->lock);
-
+ usb_hcd_unlink_urb_from_ep(sl811_to_hcd(sl811), urb);
spin_unlock(&sl811->lock);
- usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb, regs);
+ usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb, status);
spin_lock(&sl811->lock);
/* leave active endpoints in the schedule */
}
static void
-done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank, struct pt_regs *regs)
+done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank)
{
u8 status;
struct urb *urb;
bank + SL11H_XFERCNTREG);
if (len > ep->length) {
len = ep->length;
- urb->status = -EOVERFLOW;
+ urbstat = -EOVERFLOW;
}
urb->actual_length += len;
sl811_read_buf(sl811, SL811HS_PACKET_BUF(bank == 0),
buf, len);
usb_dotoggle(udev, ep->epnum, 0);
- if (urb->actual_length == urb->transfer_buffer_length)
- urbstat = 0;
- else if (len < ep->maxpacket) {
- if (urb->transfer_flags & URB_SHORT_NOT_OK)
- urbstat = -EREMOTEIO;
+ if (urbstat == -EINPROGRESS &&
+ (len < ep->maxpacket ||
+ urb->actual_length ==
+ urb->transfer_buffer_length)) {
+ if (usb_pipecontrol(urb->pipe))
+ ep->nextpid = USB_PID_ACK;
else
urbstat = 0;
}
- if (usb_pipecontrol(urb->pipe)
- && (urbstat == -EREMOTEIO
- || urbstat == 0)) {
-
- /* NOTE if the status stage STALLs (why?),
- * this reports the wrong urb status.
- */
- spin_lock(&urb->lock);
- if (urb->status == -EINPROGRESS)
- urb->status = urbstat;
- spin_unlock(&urb->lock);
-
- urb = NULL;
- ep->nextpid = USB_PID_ACK;
- }
break;
case USB_PID_SETUP:
// PACKET("...ACK/setup_%02x qh%p\n", bank, ep);
/* error? retry, until "3 strikes" */
} else if (++ep->error_count >= 3) {
if (status & SL11H_STATMASK_TMOUT)
- urbstat = -ETIMEDOUT;
+ urbstat = -ETIME;
else if (status & SL11H_STATMASK_OVF)
urbstat = -EOVERFLOW;
else
bank, status, ep, urbstat);
}
- if (urb && (urbstat != -EINPROGRESS || urb->status != -EINPROGRESS))
- finish_request(sl811, ep, urb, regs, urbstat);
+ if (urbstat != -EINPROGRESS || urb->unlinked)
+ finish_request(sl811, ep, urb, urbstat);
}
static inline u8 checkdone(struct sl811 *sl811)
return irqstat;
}
-static irqreturn_t sl811h_irq(struct usb_hcd *hcd, struct pt_regs *regs)
+static irqreturn_t sl811h_irq(struct usb_hcd *hcd)
{
struct sl811 *sl811 = hcd_to_sl811(hcd);
u8 irqstat;
* issued ... that's fine if they're different endpoints.
*/
if (irqstat & SL11H_INTMASK_DONE_A) {
- done(sl811, sl811->active_a, SL811_EP_A(SL811_HOST_BUF), regs);
+ done(sl811, sl811->active_a, SL811_EP_A(SL811_HOST_BUF));
sl811->active_a = NULL;
sl811->stat_a++;
}
#ifdef USE_B
if (irqstat & SL11H_INTMASK_DONE_B) {
- done(sl811, sl811->active_b, SL811_EP_B(SL811_HOST_BUF), regs);
+ done(sl811, sl811->active_b, SL811_EP_B(SL811_HOST_BUF));
sl811->active_b = NULL;
sl811->stat_b++;
}
container_of(sl811->active_a
->hep->urb_list.next,
struct urb, urb_list),
- NULL, -ESHUTDOWN);
+ -ESHUTDOWN);
sl811->active_a = NULL;
}
#ifdef USE_B
static int sl811h_urb_enqueue(
struct usb_hcd *hcd,
- struct usb_host_endpoint *hep,
struct urb *urb,
gfp_t mem_flags
) {
struct sl811h_ep *ep = NULL;
unsigned long flags;
int i;
- int retval = 0;
+ int retval;
+ struct usb_host_endpoint *hep = urb->ep;
#ifdef DISABLE_ISO
if (type == PIPE_ISOCHRONOUS)
|| !HC_IS_RUNNING(hcd->state)) {
retval = -ENODEV;
kfree(ep);
- goto fail;
+ goto fail_not_linked;
+ }
+ retval = usb_hcd_link_urb_to_ep(hcd, urb);
+ if (retval) {
+ kfree(ep);
+ goto fail_not_linked;
}
if (hep->hcpriv) {
sofirq_on(sl811);
}
- /* in case of unlink-during-submit */
- spin_lock(&urb->lock);
- if (urb->status != -EINPROGRESS) {
- spin_unlock(&urb->lock);
- finish_request(sl811, ep, urb, NULL, 0);
- retval = 0;
- goto fail;
- }
urb->hcpriv = hep;
- spin_unlock(&urb->lock);
-
start_transfer(sl811);
sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
fail:
+ if (retval)
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+fail_not_linked:
spin_unlock_irqrestore(&sl811->lock, flags);
return retval;
}
-static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
+static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
{
struct sl811 *sl811 = hcd_to_sl811(hcd);
struct usb_host_endpoint *hep;
unsigned long flags;
struct sl811h_ep *ep;
- int retval = 0;
+ int retval;
spin_lock_irqsave(&sl811->lock, flags);
- hep = urb->hcpriv;
- if (!hep)
+ retval = usb_hcd_check_unlink_urb(hcd, urb, status);
+ if (retval)
goto fail;
+ hep = urb->hcpriv;
ep = hep->hcpriv;
if (ep) {
/* finish right away if this urb can't be active ...
}
if (urb)
- finish_request(sl811, ep, urb, NULL, 0);
+ finish_request(sl811, ep, urb, 0);
else
VDBG("dequeue, urb %p active %s; wait4irq\n", urb,
(sl811->active_a == ep) ? "A" : "B");
} else
-fail:
retval = -EINVAL;
+ fail:
spin_unlock_irqrestore(&sl811->lock, flags);
return retval;
}
if (!list_empty(&hep->urb_list))
msleep(3);
if (!list_empty(&hep->urb_list))
- WARN("ep %p not empty?\n", ep);
+ WARNING("ep %p not empty?\n", ep);
kfree(ep);
hep->hcpriv = NULL;
*/
local_irq_save(flags);
if (!timer_pending(&sl811->timer)) {
- if (sl811h_irq( /* ~0, */ hcd, NULL) != IRQ_NONE)
+ if (sl811h_irq( /* ~0, */ hcd) != IRQ_NONE)
sl811->stat_lost++;
}
local_irq_restore(flags);
/* no overcurrent errors detection/handling */
temp |= 0x0010;
- desc->wHubCharacteristics = (__force __u16)cpu_to_le16(temp);
+ desc->wHubCharacteristics = cpu_to_le16(temp);
/* two bitmaps: ports removable, and legacy PortPwrCtrlMask */
desc->bitmap[0] = 0 << 1;
sl811h_bus_suspend(struct usb_hcd *hcd)
{
// SOFs off
- DBG("%s\n", __FUNCTION__);
+ DBG("%s\n", __func__);
return 0;
}
sl811h_bus_resume(struct usb_hcd *hcd)
{
// SOFs on
- DBG("%s\n", __FUNCTION__);
+ DBG("%s\n", __func__);
return 0;
}
return single_open(file, proc_sl811h_show, PDE(inode)->data);
}
-static struct file_operations proc_ops = {
+static const struct file_operations proc_ops = {
.open = proc_sl811h_open,
.read = seq_read,
.llseek = seq_lseek,
static void create_debug_file(struct sl811 *sl811)
{
- struct proc_dir_entry *pde;
-
- pde = create_proc_entry(proc_filename, 0, NULL);
- if (pde == NULL)
- return;
-
- pde->proc_fops = &proc_ops;
- pde->data = sl811;
- sl811->pde = pde;
+ sl811->pde = proc_create_data(proc_filename, 0, NULL, &proc_ops, sl811);
}
static void remove_debug_file(struct sl811 *sl811)
hcd->power_budget = sl811->board->power * 2;
}
- /* enable power and interupts */
+ /* enable power and interrupts */
port_power(sl811, 1);
return 0;
}
/* allocate and initialize hcd */
- hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev->dev.bus_id);
+ hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev_name(&dev->dev));
if (!hcd) {
retval = -ENOMEM;
goto err5;
struct sl811 *sl811 = hcd_to_sl811(hcd);
int retval = 0;
- if (state.event == PM_EVENT_FREEZE)
+ switch (state.event) {
+ case PM_EVENT_FREEZE:
retval = sl811h_bus_suspend(hcd);
- else if (state.event == PM_EVENT_SUSPEND)
+ break;
+ case PM_EVENT_SUSPEND:
+ case PM_EVENT_HIBERNATE:
+ case PM_EVENT_PRETHAW: /* explicitly discard hw state */
port_power(sl811, 0);
- if (retval == 0)
- dev->dev.power.power_state = state;
+ break;
+ }
return retval;
}
/* with no "check to see if VBUS is still powered" board hook,
* let's assume it'd only be powered to enable remote wakeup.
*/
- if (dev->dev.power.power_state.event == PM_EVENT_SUSPEND
- || !device_can_wakeup(&hcd->self.root_hub->dev)) {
+ if (!sl811->port1 || !device_can_wakeup(&hcd->self.root_hub->dev)) {
sl811->port1 = 0;
port_power(sl811, 1);
usb_root_hub_lost_power(hcd->self.root_hub);
return 0;
}
- dev->dev.power.power_state = PMSG_ON;
return sl811h_bus_resume(hcd);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff