lkml.org 
[lkml]   [2001]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch] uhci.c interrupts
A quick update patch to fix a couple of bugs, one important.

- Don't disable PIRQ on controller
- Print I/O base for controller when we suspend or wakeup
- Suspend controller, don't reset when system suspend's
- Don't print terminating TD twice in debug code
- Don't shadow irq parameter in alloc_uhci

Greg, please send it on to Linus. The patch is relative to 2.4.11-pre5

JE

--- linux-2.4.11-pre5/drivers/usb/uhci.c Sun Oct 7 13:20:29 2001
+++ linux/drivers/usb/uhci.c Sun Oct 7 13:21:51 2001
@@ -2410,7 +2410,7 @@
{
unsigned int io_addr = uhci->io_addr;

- dbg("suspend_hc");
+ dbg("%x: suspend_hc", io_addr);

outw(USBCMD_EGSM, io_addr + USBCMD);

@@ -2422,7 +2422,7 @@
unsigned int io_addr = uhci->io_addr;
unsigned int status;

- dbg("wakeup_hc");
+ dbg("%x: wakeup_hc", io_addr);

outw(0, io_addr + USBCMD);

@@ -2564,7 +2564,7 @@
* - The fourth queue is the bandwidth reclamation queue, which loops back
* to the high speed control queue.
*/
-static int alloc_uhci(struct pci_dev *dev, int irq, unsigned int io_addr, unsigned int io_size)
+static int alloc_uhci(struct pci_dev *dev, unsigned int io_addr, unsigned int io_size)
{
struct uhci *uhci;
int retval = -EBUSY;
@@ -2602,9 +2602,9 @@
pci_set_master(dev);

#ifndef __sparc__
- sprintf(buf, "%d", irq);
+ sprintf(buf, "%d", dev->irq);
#else
- bufp = __irq_itoa(irq);
+ bufp = __irq_itoa(dev->irq);
#endif
printk(KERN_INFO __FILE__ ": USB UHCI at I/O 0x%x, IRQ %s\n",
io_addr, bufp);
@@ -2828,13 +2828,13 @@

start_hc(uhci);

- if (request_irq(irq, uhci_interrupt, SA_SHIRQ, "usb-uhci", uhci))
+ if (request_irq(dev->irq, uhci_interrupt, SA_SHIRQ, "usb-uhci", uhci))
goto err_request_irq;

- uhci->irq = irq;
+ uhci->irq = dev->irq;

/* disable legacy emulation */
- pci_write_config_word(uhci->dev, USBLEGSUP, 0);
+ pci_write_config_word(uhci->dev, USBLEGSUP, USBLEGSUP_DEFAULT);

usb_connect(uhci->rh.dev);

@@ -2925,7 +2925,7 @@
if (!(pci_resource_flags(dev, i) & IORESOURCE_IO))
continue;

- return alloc_uhci(dev, dev->irq, io_addr, io_size);
+ return alloc_uhci(dev, io_addr, io_size);
}

return -ENODEV;
@@ -2958,7 +2958,7 @@
#ifdef CONFIG_PM
static int uhci_pci_suspend(struct pci_dev *dev, u32 state)
{
- reset_hc((struct uhci *) dev->driver_data);
+ suspend_hc((struct uhci *) dev->driver_data);
return 0;
}

--- linux-2.4.11-pre5/drivers/usb/uhci-debug.h Wed Aug 15 14:23:46 2001
+++ linux/drivers/usb/uhci-debug.h Sun Oct 7 12:50:55 2001
@@ -372,7 +372,9 @@
if (td->link != td->dma_handle)
out += sprintf(out, " skel_term_td does not link to self\n");

- out += uhci_show_td(td, out, len - (out - buf), 4);
+ /* Don't show it twice */
+ if (debug <= 1)
+ out += uhci_show_td(td, out, len - (out - buf), 4);
}

continue;
--- linux-2.4.11-pre5/drivers/usb/uhci.h Wed Aug 15 14:23:46 2001
+++ linux/drivers/usb/uhci.h Sun Oct 7 13:11:57 2001
@@ -53,8 +53,8 @@
#define USBPORTSC_SUSP 0x1000 /* Suspend */

/* Legacy support register */
-#define USBLEGSUP 0xc0
-#define USBLEGSUP_DEFAULT 0x2000 /* only PIRQ enable set */
+#define USBLEGSUP 0xc0
+#define USBLEGSUP_DEFAULT 0x2000 /* only PIRQ enable set */

#define UHCI_NULL_DATA_SIZE 0x7FF /* for UHCI controller TD */

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2005-03-22 13:04    [W:0.144 / U:0.448 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site