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[PATCH] bcm43xx: ucode debug status via sysfs

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This patch prints out the ucode debug status to sysfs. So, users can
watch the microcode status of their hardware.

Signed-off-by: Martin Langer <martin-langer@gmx.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger 2006-09-07 10:12:11 -05:00 committed by John W. Linville
parent 1ef4583ee3
commit 87d263271b
2 changed files with 64 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/wireless/bcm43xx/bcm43xx.h
View File

@ -307,10 +307,11 @@
#define BCM43xx_SBF_80000000 0x80000000 /*FIXME: fix name*/
/* Microcode */
#define BCM43xx_UCODE_REVISION 0x0000
#define BCM43xx_UCODE_PATCHLEVEL 0x0002
#define BCM43xx_UCODE_DATE 0x0004
#define BCM43xx_UCODE_TIME 0x0006
#define BCM43xx_UCODE_REVISION 0x0000
#define BCM43xx_UCODE_PATCHLEVEL 0x0002
#define BCM43xx_UCODE_DATE 0x0004
#define BCM43xx_UCODE_TIME 0x0006
#define BCM43xx_UCODE_STATUS 0x0040
/* MicrocodeFlagsBitfield (addr + lo-word values?)*/
#define BCM43xx_UCODEFLAGS_OFFSET 0x005E

59
drivers/net/wireless/bcm43xx/bcm43xx_sysfs.c
View File

@ -376,6 +376,59 @@ static DEVICE_ATTR(phymode, 0644,
bcm43xx_attr_phymode_show,
bcm43xx_attr_phymode_store);
static ssize_t bcm43xx_attr_microcode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
unsigned long flags;
struct bcm43xx_private *bcm = dev_to_bcm(dev);
ssize_t count = 0;
u16 status;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
mutex_lock(&(bcm)->mutex);
spin_lock_irqsave(&bcm->irq_lock, flags);
status = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODE_STATUS);
spin_unlock_irqrestore(&bcm->irq_lock, flags);
mutex_unlock(&(bcm)->mutex);
switch (status) {
case 0x0000:
count = snprintf(buf, PAGE_SIZE, "0x%.4x (invalid)\n",
status);
break;
case 0x0001:
count = snprintf(buf, PAGE_SIZE, "0x%.4x (init)\n",
status);
break;
case 0x0002:
count = snprintf(buf, PAGE_SIZE, "0x%.4x (active)\n",
status);
break;
case 0x0003:
count = snprintf(buf, PAGE_SIZE, "0x%.4x (suspended)\n",
status);
break;
case 0x0004:
count = snprintf(buf, PAGE_SIZE, "0x%.4x (asleep)\n",
status);
break;
default:
count = snprintf(buf, PAGE_SIZE, "0x%.4x (unknown)\n",
status);
break;
}
return count;
}
static DEVICE_ATTR(microcodestatus, 0444,
bcm43xx_attr_microcode_show,
NULL);
int bcm43xx_sysfs_register(struct bcm43xx_private *bcm)
{
struct device *dev = &bcm->pci_dev->dev;
@ -395,9 +448,14 @@ int bcm43xx_sysfs_register(struct bcm43xx_private *bcm)
err = device_create_file(dev, &dev_attr_phymode);
if (err)
goto err_remove_shortpreamble;
err = device_create_file(dev, &dev_attr_microcodestatus);
if (err)
goto err_remove_phymode;
out:
return err;
err_remove_phymode:
device_remove_file(dev, &dev_attr_phymode);
err_remove_shortpreamble:
device_remove_file(dev, &dev_attr_shortpreamble);
err_remove_interfmode:
@ -411,6 +469,7 @@ void bcm43xx_sysfs_unregister(struct bcm43xx_private *bcm)
{
struct device *dev = &bcm->pci_dev->dev;
device_remove_file(dev, &dev_attr_microcodestatus);
device_remove_file(dev, &dev_attr_phymode);
device_remove_file(dev, &dev_attr_shortpreamble);
device_remove_file(dev, &dev_attr_interference);