sdio-linux-devel

[Sdio-linux-devel] About device information

[Leon l. <as...@ms...>]

Hi,
     I am porting our wireless product to Linux.

I think that the register/unregister functions of SDIO stack are similar to
those of PCI.

However, pci allows us to store private data
     pci_set_drvdata(pci_dev, net_dev);

In other word, we need to use global variable to store our private data.

Check AR6000 :
function/wlan/ar6000/hif/hif.c
TARGET_FUNCTION_CONTEXT FunctionContext = {
     .function.pProbe     = hifDeviceInserted,
     .function.pRemove    = hifDeviceRemoved,
}

hifDeviceInserted(SDFUNCTION *function, SDDEVICE *handle)
{
    device = addHifDevice(handle);          <===== hifDevice[0]
}

hifDeviceRemoved(SDFUNCTION *function, SDDEVICE *handle)
{
    device = getHifDevice(handle);          <====== hifDevice[0]
}


Therefore, I think that we can follow the method of PCI to store device
information
linux/pci.h
struct pci_dev {
      struct    device    dev;        /* Generic device interface */
}
static inline void pci_set_drvdata (struct pci_dev *pdev, void *data);

Any suggestion ?


Regards,
Leon

Re: [Sdio-linux-devel] About device information

[Paul L. <pl...@at...>]

In the function driver's PSDFUNCTION pFunction structure there is a
pContext member. You can use this for whatever the driver needs. The
samples in src/function use this.
=20
Regards
=20
Paul

  _____ =20

From: Leon lee [mailto:as...@ms...]=20
Sent: Tuesday, July 17, 2007 9:19 AM
To: sdi...@li...
Subject: [Sdio-linux-devel] About device information


Hi,
     I am porting our wireless product to Linux.

I think that the register/unregister functions of SDIO stack are similar
to those of PCI.

However, pci allows us to store private data=20
     pci_set_drvdata(pci_dev, net_dev);=20

In other word, we need to use global variable to store our private data.

Check AR6000 :
function/wlan/ar6000/hif/hif.c
TARGET_FUNCTION_CONTEXT FunctionContext =3D {
     .function.pProbe     =3D hifDeviceInserted,=20
     .function.pRemove    =3D hifDeviceRemoved,
}

hifDeviceInserted(SDFUNCTION *function, SDDEVICE *handle)
{
    device =3D addHifDevice(handle);          <=3D=3D=3D=3D=3D hifDevice[=
0]
}

hifDeviceRemoved(SDFUNCTION *function, SDDEVICE *handle)=20
{
    device =3D getHifDevice(handle);          <=3D=3D=3D=3D=3D=3D hifDevi=
ce[0]
}


Therefore, I think that we can follow the method of PCI to store device
information
linux/pci.h
struct pci_dev {
      struct    device    dev;        /* Generic device interface */=20
}
static inline void pci_set_drvdata (struct pci_dev *pdev, void *data);

Any suggestion ?


Regards,
Leon