hid-quirks.c

omap3 linux 2.6 用nocc去除了冗余代码

	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_PANJIT, 0x0001, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_PANJIT, 0x0002, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_PANJIT, 0x0003, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_PANJIT, 0x0004, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K, HID_QUIRK_IGNORE },

	{ USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE },
	{ USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302, HID_QUIRK_IGNORE },

	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER, HID_QUIRK_LOGITECH_DESCRIPTOR },
	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER, HID_QUIRK_LOGITECH_DESCRIPTOR },
	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2, HID_QUIRK_LOGITECH_DESCRIPTOR },

	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE, HID_QUIRK_MIGHTYMOUSE | HID_QUIRK_INVERT_HWHEEL },

	{ USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
	{ USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },

	{ USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER, HID_QUIRK_SONY_PS3_CONTROLLER },

	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },

	{ USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },

	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE },

	{ USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658, HID_QUIRK_RESET_LEDS },

	{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1, HID_QUIRK_SWAPPED_MIN_MAX },
	{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2, HID_QUIRK_SWAPPED_MIN_MAX },

	{ 0, 0 }
};

/* Dynamic HID quirks list - specified at runtime */
struct quirks_list_struct {
	struct hid_blacklist hid_bl_item;
	struct list_head node;
};

static LIST_HEAD(dquirks_list);
static DECLARE_RWSEM(dquirks_rwsem);

/* Runtime ("dynamic") quirks manipulation functions */

/**
 * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
 * @idVendor: the 16-bit USB vendor ID, in native byteorder
 * @idProduct: the 16-bit USB product ID, in native byteorder
 *
 * Description:
 *         Scans dquirks_list for a matching dynamic quirk and returns
 *         the pointer to the relevant struct hid_blacklist if found.
 *         Must be called with a read lock held on dquirks_rwsem.
 *
 * Returns: NULL if no quirk found, struct hid_blacklist * if found.
 */
static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
		const u16 idProduct)
{
	struct quirks_list_struct *q;
	struct hid_blacklist *bl_entry = NULL;

	list_for_each_entry(q, &dquirks_list, node) {
		if (q->hid_bl_item.idVendor == idVendor &&
				q->hid_bl_item.idProduct == idProduct) {
			bl_entry = &q->hid_bl_item;
			break;
		}
	}

	if (bl_entry != NULL)
		dbg("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
				bl_entry->quirks, bl_entry->idVendor,
				bl_entry->idProduct);

	return bl_entry;
}


/**
 * usbhid_modify_dquirk: add/replace a HID quirk
 * @idVendor: the 16-bit USB vendor ID, in native byteorder
 * @idProduct: the 16-bit USB product ID, in native byteorder
 * @quirks: the u32 quirks value to add/replace
 *
 * Description:
 *         If an dynamic quirk exists in memory for this (idVendor,
 *         idProduct) pair, replace its quirks value with what was
 *         provided.  Otherwise, add the quirk to the dynamic quirks list.
 *
 * Returns: 0 OK, -error on failure.
 */
int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
		const u32 quirks)
{
	struct quirks_list_struct *q_new, *q;
	int list_edited = 0;

	if (!idVendor) {
		dbg("Cannot add a quirk with idVendor = 0");
		return -EINVAL;
	}

	q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
	if (!q_new) {
		dbg("Could not allocate quirks_list_struct");
		return -ENOMEM;
	}

	q_new->hid_bl_item.idVendor = idVendor;
	q_new->hid_bl_item.idProduct = idProduct;
	q_new->hid_bl_item.quirks = quirks;

	down_write(&dquirks_rwsem);

	list_for_each_entry(q, &dquirks_list, node) {

		if (q->hid_bl_item.idVendor == idVendor &&
				q->hid_bl_item.idProduct == idProduct) {

			list_replace(&q->node, &q_new->node);
			kfree(q);
			list_edited = 1;
			break;

		}

	}

	if (!list_edited)
		list_add_tail(&q_new->node, &dquirks_list);

	up_write(&dquirks_rwsem);

	return 0;
}


/**
 * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
 *
 * Description:
 *         Free all memory associated with dynamic quirks - called before
 *         module unload.
 *
 */
static void usbhid_remove_all_dquirks(void)
{
	struct quirks_list_struct *q, *temp;

	down_write(&dquirks_rwsem);
	list_for_each_entry_safe(q, temp, &dquirks_list, node) {
		list_del(&q->node);
		kfree(q);
	}
	up_write(&dquirks_rwsem);

}

/** 
 * usbhid_quirks_init: apply USB HID quirks specified at module load time
 */
int usbhid_quirks_init(char **quirks_param)
{
	u16 idVendor, idProduct;
	u32 quirks;
	int n = 0, m;

	for (; quirks_param[n] && n < MAX_USBHID_BOOT_QUIRKS; n++) {

		m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
				&idVendor, &idProduct, &quirks);

		if (m != 3 ||
				usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
			printk(KERN_WARNING
					"Could not parse HID quirk module param %s\n",
					quirks_param[n]);
		}
	}

	return 0;
}

/**
 * usbhid_quirks_exit: release memory associated with dynamic_quirks
 *
 * Description:
 *     Release all memory associated with dynamic quirks.  Called upon
 *     module unload.
 *
 * Returns: nothing
 */
void usbhid_quirks_exit(void)
{
	usbhid_remove_all_dquirks();
}

/**
 * usbhid_exists_squirk: return any static quirks for a USB HID device
 * @idVendor: the 16-bit USB vendor ID, in native byteorder
 * @idProduct: the 16-bit USB product ID, in native byteorder
 *
 * Description:
 *     Given a USB vendor ID and product ID, return a pointer to
 *     the hid_blacklist entry associated with that device.
 *
 * Returns: pointer if quirk found, or NULL if no quirks found.
 */
static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
		const u16 idProduct)
{
	const struct hid_blacklist *bl_entry = NULL;
	int n = 0;

	for (; hid_blacklist[n].idVendor; n++)
		if (hid_blacklist[n].idVendor == idVendor &&
				hid_blacklist[n].idProduct == idProduct)
			bl_entry = &hid_blacklist[n];

	if (bl_entry != NULL)
		dbg("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
				bl_entry->quirks, bl_entry->idVendor, 
				bl_entry->idProduct);
	return bl_entry;
}

/**
 * usbhid_lookup_quirk: return any quirks associated with a USB HID device
 * @idVendor: the 16-bit USB vendor ID, in native byteorder
 * @idProduct: the 16-bit USB product ID, in native byteorder
 *
 * Description:
 *     Given a USB vendor ID and product ID, return any quirks associated
 *     with that device.
 *
 * Returns: a u32 quirks value.
 */
u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
{
	u32 quirks = 0;
	const struct hid_blacklist *bl_entry = NULL;

	/* Ignore all Wacom devices */
	if (idVendor == USB_VENDOR_ID_WACOM)
		return HID_QUIRK_IGNORE;

	/* ignore all Code Mercenaries IOWarrior devices */
	if (idVendor == USB_VENDOR_ID_CODEMERCS)
		if (idProduct >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
				idProduct <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
			return HID_QUIRK_IGNORE;

	down_read(&dquirks_rwsem);
	bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
	if (!bl_entry)
		bl_entry = usbhid_exists_squirk(idVendor, idProduct);
	if (bl_entry)
		quirks = bl_entry->quirks;
	up_read(&dquirks_rwsem);

	return quirks;
}