mirror of https://gitee.com/openkylin/linux.git
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*
|
|
* USB device controllers have lots of quirks. Use these macros in
|
|
* gadget drivers or other code that needs to deal with them, and which
|
|
* autoconfigures instead of using early binding to the hardware.
|
|
*
|
|
* This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
|
|
* some config file that gets updated as new hardware is supported.
|
|
* (And avoiding all runtime comparisons in typical one-choice configs!)
|
|
*
|
|
* NOTE: some of these controller drivers may not be available yet.
|
|
* Some are available on 2.4 kernels; several are available, but not
|
|
* yet pushed in the 2.6 mainline tree.
|
|
*/
|
|
|
|
#include <linux/usb/gadget.h>
|
|
#include <linux/module.h>
|
|
|
|
#include "gadget_chips.h"
|
|
|
|
/**
|
|
* usb_gadget_controller_number - support bcdDevice id convention
|
|
* @gadget: the controller being driven
|
|
*
|
|
* Return a 2-digit BCD value associated with the peripheral controller,
|
|
* suitable for use as part of a bcdDevice value, or a negative error code.
|
|
*
|
|
* NOTE: this convention is purely optional, and has no meaning in terms of
|
|
* any USB specification. If you want to use a different convention in your
|
|
* gadget driver firmware -- maybe a more formal revision ID -- feel free.
|
|
*
|
|
* Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
|
|
* to change their behavior accordingly. For example it might help avoiding
|
|
* some chip bug.
|
|
*/
|
|
int usb_gadget_controller_number(struct usb_gadget *gadget)
|
|
{
|
|
if (gadget_is_net2280(gadget))
|
|
return 0x01;
|
|
else if (gadget_is_dummy(gadget))
|
|
return 0x02;
|
|
else if (gadget_is_pxa(gadget))
|
|
return 0x03;
|
|
else if (gadget_is_goku(gadget))
|
|
return 0x06;
|
|
else if (gadget_is_omap(gadget))
|
|
return 0x08;
|
|
else if (gadget_is_pxa27x(gadget))
|
|
return 0x11;
|
|
else if (gadget_is_s3c2410(gadget))
|
|
return 0x12;
|
|
else if (gadget_is_at91(gadget))
|
|
return 0x13;
|
|
else if (gadget_is_imx(gadget))
|
|
return 0x14;
|
|
else if (gadget_is_musbhdrc(gadget))
|
|
return 0x16;
|
|
else if (gadget_is_atmel_usba(gadget))
|
|
return 0x18;
|
|
else if (gadget_is_fsl_usb2(gadget))
|
|
return 0x19;
|
|
else if (gadget_is_amd5536udc(gadget))
|
|
return 0x20;
|
|
else if (gadget_is_m66592(gadget))
|
|
return 0x21;
|
|
else if (gadget_is_fsl_qe(gadget))
|
|
return 0x22;
|
|
else if (gadget_is_ci13xxx_pci(gadget))
|
|
return 0x23;
|
|
else if (gadget_is_langwell(gadget))
|
|
return 0x24;
|
|
else if (gadget_is_r8a66597(gadget))
|
|
return 0x25;
|
|
else if (gadget_is_s3c_hsotg(gadget))
|
|
return 0x26;
|
|
else if (gadget_is_pch(gadget))
|
|
return 0x27;
|
|
else if (gadget_is_ci13xxx_msm(gadget))
|
|
return 0x28;
|
|
else if (gadget_is_renesas_usbhs(gadget))
|
|
return 0x29;
|
|
else if (gadget_is_s3c_hsudc(gadget))
|
|
return 0x30;
|
|
else if (gadget_is_net2272(gadget))
|
|
return 0x31;
|
|
else if (gadget_is_dwc3(gadget))
|
|
return 0x32;
|
|
else if (gadget_is_lpc32xx(gadget))
|
|
return 0x33;
|
|
else if (gadget_is_bcm63xx(gadget))
|
|
return 0x34;
|
|
|
|
return -ENOENT;
|
|
}
|
|
EXPORT_SYMBOL_GPL(usb_gadget_controller_number);
|