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linux-next/scripts/mod/devicetable-offsets.c
Suthikulpanit, Suravee 26095a01d3 ACPI / scan: Add support for ACPI _CLS device matching
Device drivers typically use ACPI _HIDs/_CIDs listed in struct device_driver
acpi_match_table to match devices. However, for generic drivers, we do not
want to list _HID for all supported devices. Also, certain classes of devices
do not have _CID (e.g. SATA, USB). Instead, we can leverage ACPI _CLS,
which specifies PCI-defined class code (i.e. base-class, subclass and
programming interface). This patch adds support for matching ACPI devices using
the _CLS method.

To support loadable module, current design uses _HID or _CID to match device's
modalias. With the new way of matching with _CLS this would requires modification
to the current ACPI modalias key to include _CLS. This patch appends PCI-defined
class-code to the existing ACPI modalias as following.

    acpi:<HID>:<CID1>:<CID2>:..:<CIDn>:<bbsspp>:
E.g:
    # cat /sys/devices/platform/AMDI0600:00/modalias
    acpi:AMDI0600:010601:

where bb is th base-class code, ss is te sub-class code, and pp is the
programming interface code

Since there would not be _HID/_CID in the ACPI matching table of the driver,
this patch adds a field to acpi_device_id to specify the matching _CLS.

    static const struct acpi_device_id ahci_acpi_match[] = {
        { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
        {},
    };

In this case, the corresponded entry in modules.alias file would be:

    alias acpi*:010601:* ahci_platform

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-07 01:55:20 +02:00

201 lines
5.5 KiB
C

#include <linux/kbuild.h>
#include <linux/mod_devicetable.h>
#define DEVID(devid) DEFINE(SIZE_##devid, sizeof(struct devid))
#define DEVID_FIELD(devid, field) \
DEFINE(OFF_##devid##_##field, offsetof(struct devid, field))
int main(void)
{
DEVID(usb_device_id);
DEVID_FIELD(usb_device_id, match_flags);
DEVID_FIELD(usb_device_id, idVendor);
DEVID_FIELD(usb_device_id, idProduct);
DEVID_FIELD(usb_device_id, bcdDevice_lo);
DEVID_FIELD(usb_device_id, bcdDevice_hi);
DEVID_FIELD(usb_device_id, bDeviceClass);
DEVID_FIELD(usb_device_id, bDeviceSubClass);
DEVID_FIELD(usb_device_id, bDeviceProtocol);
DEVID_FIELD(usb_device_id, bInterfaceClass);
DEVID_FIELD(usb_device_id, bInterfaceSubClass);
DEVID_FIELD(usb_device_id, bInterfaceProtocol);
DEVID_FIELD(usb_device_id, bInterfaceNumber);
DEVID(hid_device_id);
DEVID_FIELD(hid_device_id, bus);
DEVID_FIELD(hid_device_id, group);
DEVID_FIELD(hid_device_id, vendor);
DEVID_FIELD(hid_device_id, product);
DEVID(ieee1394_device_id);
DEVID_FIELD(ieee1394_device_id, match_flags);
DEVID_FIELD(ieee1394_device_id, vendor_id);
DEVID_FIELD(ieee1394_device_id, model_id);
DEVID_FIELD(ieee1394_device_id, specifier_id);
DEVID_FIELD(ieee1394_device_id, version);
DEVID(pci_device_id);
DEVID_FIELD(pci_device_id, vendor);
DEVID_FIELD(pci_device_id, device);
DEVID_FIELD(pci_device_id, subvendor);
DEVID_FIELD(pci_device_id, subdevice);
DEVID_FIELD(pci_device_id, class);
DEVID_FIELD(pci_device_id, class_mask);
DEVID(ccw_device_id);
DEVID_FIELD(ccw_device_id, match_flags);
DEVID_FIELD(ccw_device_id, cu_type);
DEVID_FIELD(ccw_device_id, cu_model);
DEVID_FIELD(ccw_device_id, dev_type);
DEVID_FIELD(ccw_device_id, dev_model);
DEVID(ap_device_id);
DEVID_FIELD(ap_device_id, dev_type);
DEVID(css_device_id);
DEVID_FIELD(css_device_id, type);
DEVID(serio_device_id);
DEVID_FIELD(serio_device_id, type);
DEVID_FIELD(serio_device_id, proto);
DEVID_FIELD(serio_device_id, id);
DEVID_FIELD(serio_device_id, extra);
DEVID(acpi_device_id);
DEVID_FIELD(acpi_device_id, id);
DEVID_FIELD(acpi_device_id, cls);
DEVID_FIELD(acpi_device_id, cls_msk);
DEVID(pnp_device_id);
DEVID_FIELD(pnp_device_id, id);
DEVID(pnp_card_device_id);
DEVID_FIELD(pnp_card_device_id, devs);
DEVID(pcmcia_device_id);
DEVID_FIELD(pcmcia_device_id, match_flags);
DEVID_FIELD(pcmcia_device_id, manf_id);
DEVID_FIELD(pcmcia_device_id, card_id);
DEVID_FIELD(pcmcia_device_id, func_id);
DEVID_FIELD(pcmcia_device_id, function);
DEVID_FIELD(pcmcia_device_id, device_no);
DEVID_FIELD(pcmcia_device_id, prod_id_hash);
DEVID(of_device_id);
DEVID_FIELD(of_device_id, name);
DEVID_FIELD(of_device_id, type);
DEVID_FIELD(of_device_id, compatible);
DEVID(vio_device_id);
DEVID_FIELD(vio_device_id, type);
DEVID_FIELD(vio_device_id, compat);
DEVID(input_device_id);
DEVID_FIELD(input_device_id, flags);
DEVID_FIELD(input_device_id, bustype);
DEVID_FIELD(input_device_id, vendor);
DEVID_FIELD(input_device_id, product);
DEVID_FIELD(input_device_id, version);
DEVID_FIELD(input_device_id, evbit);
DEVID_FIELD(input_device_id, keybit);
DEVID_FIELD(input_device_id, relbit);
DEVID_FIELD(input_device_id, absbit);
DEVID_FIELD(input_device_id, mscbit);
DEVID_FIELD(input_device_id, ledbit);
DEVID_FIELD(input_device_id, sndbit);
DEVID_FIELD(input_device_id, ffbit);
DEVID_FIELD(input_device_id, swbit);
DEVID(eisa_device_id);
DEVID_FIELD(eisa_device_id, sig);
DEVID(parisc_device_id);
DEVID_FIELD(parisc_device_id, hw_type);
DEVID_FIELD(parisc_device_id, hversion);
DEVID_FIELD(parisc_device_id, hversion_rev);
DEVID_FIELD(parisc_device_id, sversion);
DEVID(sdio_device_id);
DEVID_FIELD(sdio_device_id, class);
DEVID_FIELD(sdio_device_id, vendor);
DEVID_FIELD(sdio_device_id, device);
DEVID(ssb_device_id);
DEVID_FIELD(ssb_device_id, vendor);
DEVID_FIELD(ssb_device_id, coreid);
DEVID_FIELD(ssb_device_id, revision);
DEVID(bcma_device_id);
DEVID_FIELD(bcma_device_id, manuf);
DEVID_FIELD(bcma_device_id, id);
DEVID_FIELD(bcma_device_id, rev);
DEVID_FIELD(bcma_device_id, class);
DEVID(virtio_device_id);
DEVID_FIELD(virtio_device_id, device);
DEVID_FIELD(virtio_device_id, vendor);
DEVID(hv_vmbus_device_id);
DEVID_FIELD(hv_vmbus_device_id, guid);
DEVID(i2c_device_id);
DEVID_FIELD(i2c_device_id, name);
DEVID(spi_device_id);
DEVID_FIELD(spi_device_id, name);
DEVID(dmi_system_id);
DEVID_FIELD(dmi_system_id, matches);
DEVID(platform_device_id);
DEVID_FIELD(platform_device_id, name);
DEVID(mdio_device_id);
DEVID_FIELD(mdio_device_id, phy_id);
DEVID_FIELD(mdio_device_id, phy_id_mask);
DEVID(zorro_device_id);
DEVID_FIELD(zorro_device_id, id);
DEVID(isapnp_device_id);
DEVID_FIELD(isapnp_device_id, vendor);
DEVID_FIELD(isapnp_device_id, function);
DEVID(ipack_device_id);
DEVID_FIELD(ipack_device_id, format);
DEVID_FIELD(ipack_device_id, vendor);
DEVID_FIELD(ipack_device_id, device);
DEVID(amba_id);
DEVID_FIELD(amba_id, id);
DEVID_FIELD(amba_id, mask);
DEVID(mips_cdmm_device_id);
DEVID_FIELD(mips_cdmm_device_id, type);
DEVID(x86_cpu_id);
DEVID_FIELD(x86_cpu_id, feature);
DEVID_FIELD(x86_cpu_id, family);
DEVID_FIELD(x86_cpu_id, model);
DEVID_FIELD(x86_cpu_id, vendor);
DEVID(cpu_feature);
DEVID_FIELD(cpu_feature, feature);
DEVID(mei_cl_device_id);
DEVID_FIELD(mei_cl_device_id, name);
DEVID_FIELD(mei_cl_device_id, uuid);
DEVID(rio_device_id);
DEVID_FIELD(rio_device_id, did);
DEVID_FIELD(rio_device_id, vid);
DEVID_FIELD(rio_device_id, asm_did);
DEVID_FIELD(rio_device_id, asm_vid);
DEVID(ulpi_device_id);
DEVID_FIELD(ulpi_device_id, vendor);
DEVID_FIELD(ulpi_device_id, product);
return 0;
}