24a28e4283
This patch adds a USB gadget driver for the LPC32xx ARM SoC. Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
148 lines
5.1 KiB
C
148 lines
5.1 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.
|
|
*/
|
|
|
|
#ifndef __GADGET_CHIPS_H
|
|
#define __GADGET_CHIPS_H
|
|
|
|
/*
|
|
* NOTICE: the entries below are alphabetical and should be kept
|
|
* that way.
|
|
*
|
|
* Always be sure to add new entries to the correct position or
|
|
* accept the bashing later.
|
|
*
|
|
* If you have forgotten the alphabetical order let VIM/EMACS
|
|
* do that for you.
|
|
*/
|
|
#define gadget_is_amd5536udc(g) (!strcmp("amd5536udc", (g)->name))
|
|
#define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name))
|
|
#define gadget_is_atmel_usba(g) (!strcmp("atmel_usba_udc", (g)->name))
|
|
#define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name))
|
|
#define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name))
|
|
#define gadget_is_dummy(g) (!strcmp("dummy_udc", (g)->name))
|
|
#define gadget_is_dwc3(g) (!strcmp("dwc3-gadget", (g)->name))
|
|
#define gadget_is_fsl_qe(g) (!strcmp("fsl_qe_udc", (g)->name))
|
|
#define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name))
|
|
#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
|
|
#define gadget_is_imx(g) (!strcmp("imx_udc", (g)->name))
|
|
#define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name))
|
|
#define gadget_is_lpc32xx(g) (!strcmp("lpc32xx_udc", (g)->name))
|
|
#define gadget_is_m66592(g) (!strcmp("m66592_udc", (g)->name))
|
|
#define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name))
|
|
#define gadget_is_net2272(g) (!strcmp("net2272", (g)->name))
|
|
#define gadget_is_net2280(g) (!strcmp("net2280", (g)->name))
|
|
#define gadget_is_omap(g) (!strcmp("omap_udc", (g)->name))
|
|
#define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name))
|
|
#define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name))
|
|
#define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name))
|
|
#define gadget_is_r8a66597(g) (!strcmp("r8a66597_udc", (g)->name))
|
|
#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name))
|
|
#define gadget_is_s3c2410(g) (!strcmp("s3c2410_udc", (g)->name))
|
|
#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name))
|
|
#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name))
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
static inline 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;
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
|
|
/**
|
|
* gadget_supports_altsettings - return true if altsettings work
|
|
* @gadget: the gadget in question
|
|
*/
|
|
static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
|
|
{
|
|
/* PXA 21x/25x/26x has no altsettings at all */
|
|
if (gadget_is_pxa(gadget))
|
|
return false;
|
|
|
|
/* PXA 27x and 3xx have *broken* altsetting support */
|
|
if (gadget_is_pxa27x(gadget))
|
|
return false;
|
|
|
|
/* Everything else is *presumably* fine ... */
|
|
return true;
|
|
}
|
|
|
|
#endif /* __GADGET_CHIPS_H */
|