83ba11d934
This prevents some drivers from complaining that no bcdDevice id was set. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
225 lines
5.8 KiB
C
225 lines
5.8 KiB
C
/*
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* USB device controllers have lots of quirks. Use these macros in
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* gadget drivers or other code that needs to deal with them, and which
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* autoconfigures instead of using early binding to the hardware.
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*
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* This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
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* some config file that gets updated as new hardware is supported.
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* (And avoiding all runtime comparisons in typical one-choice configs!)
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*
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* NOTE: some of these controller drivers may not be available yet.
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* Some are available on 2.4 kernels; several are available, but not
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* yet pushed in the 2.6 mainline tree.
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*/
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#ifndef __GADGET_CHIPS_H
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#define __GADGET_CHIPS_H
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#ifdef CONFIG_USB_GADGET_NET2280
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#define gadget_is_net2280(g) !strcmp("net2280", (g)->name)
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#else
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#define gadget_is_net2280(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_AMD5536UDC
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#define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name)
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#else
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#define gadget_is_amd5536udc(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_DUMMY_HCD
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#define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name)
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#else
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#define gadget_is_dummy(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_PXA25X
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#define gadget_is_pxa(g) !strcmp("pxa25x_udc", (g)->name)
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#else
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#define gadget_is_pxa(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_GOKU
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#define gadget_is_goku(g) !strcmp("goku_udc", (g)->name)
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#else
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#define gadget_is_goku(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_LH7A40X
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#define gadget_is_lh7a40x(g) !strcmp("lh7a40x_udc", (g)->name)
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#else
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#define gadget_is_lh7a40x(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_OMAP
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#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name)
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#else
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#define gadget_is_omap(g) 0
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#endif
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/* various unstable versions available */
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#ifdef CONFIG_USB_GADGET_PXA27X
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#define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name)
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#else
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#define gadget_is_pxa27x(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_ATMEL_USBA
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#define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name)
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#else
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#define gadget_is_atmel_usba(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_S3C2410
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#define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name)
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#else
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#define gadget_is_s3c2410(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_AT91
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#define gadget_is_at91(g) !strcmp("at91_udc", (g)->name)
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#else
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#define gadget_is_at91(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_IMX
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#define gadget_is_imx(g) !strcmp("imx_udc", (g)->name)
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#else
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#define gadget_is_imx(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_FSL_USB2
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#define gadget_is_fsl_usb2(g) !strcmp("fsl-usb2-udc", (g)->name)
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#else
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#define gadget_is_fsl_usb2(g) 0
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#endif
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/* Mentor high speed "dual role" controller, in peripheral role */
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#ifdef CONFIG_USB_GADGET_MUSB_HDRC
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#define gadget_is_musbhdrc(g) !strcmp("musb_hdrc", (g)->name)
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#else
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#define gadget_is_musbhdrc(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_LANGWELL
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#define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name))
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#else
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#define gadget_is_langwell(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_M66592
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#define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name)
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#else
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#define gadget_is_m66592(g) 0
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#endif
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/* Freescale CPM/QE UDC SUPPORT */
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#ifdef CONFIG_USB_GADGET_FSL_QE
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#define gadget_is_fsl_qe(g) !strcmp("fsl_qe_udc", (g)->name)
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#else
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#define gadget_is_fsl_qe(g) 0
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#endif
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#ifdef CONFIG_USB_GADGET_CI13XXX
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#define gadget_is_ci13xxx(g) (!strcmp("ci13xxx_udc", (g)->name))
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#else
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#define gadget_is_ci13xxx(g) 0
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#endif
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// CONFIG_USB_GADGET_SX2
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// CONFIG_USB_GADGET_AU1X00
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// ...
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#ifdef CONFIG_USB_GADGET_R8A66597
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#define gadget_is_r8a66597(g) !strcmp("r8a66597_udc", (g)->name)
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#else
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#define gadget_is_r8a66597(g) 0
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#endif
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#ifdef CONFIG_USB_S3C_HSOTG
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#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name))
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#else
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#define gadget_is_s3c_hsotg(g) 0
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#endif
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/**
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* usb_gadget_controller_number - support bcdDevice id convention
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* @gadget: the controller being driven
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*
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* Return a 2-digit BCD value associated with the peripheral controller,
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* suitable for use as part of a bcdDevice value, or a negative error code.
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*
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* NOTE: this convention is purely optional, and has no meaning in terms of
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* any USB specification. If you want to use a different convention in your
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* gadget driver firmware -- maybe a more formal revision ID -- feel free.
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*
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* Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
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* to change their behavior accordingly. For example it might help avoiding
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* some chip bug.
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*/
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static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
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{
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if (gadget_is_net2280(gadget))
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return 0x01;
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else if (gadget_is_dummy(gadget))
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return 0x02;
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else if (gadget_is_pxa(gadget))
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return 0x03;
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else if (gadget_is_goku(gadget))
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return 0x06;
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else if (gadget_is_omap(gadget))
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return 0x08;
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else if (gadget_is_lh7a40x(gadget))
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return 0x09;
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else if (gadget_is_pxa27x(gadget))
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return 0x11;
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else if (gadget_is_s3c2410(gadget))
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return 0x12;
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else if (gadget_is_at91(gadget))
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return 0x13;
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else if (gadget_is_imx(gadget))
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return 0x14;
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else if (gadget_is_musbhdrc(gadget))
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return 0x16;
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else if (gadget_is_atmel_usba(gadget))
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return 0x18;
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else if (gadget_is_fsl_usb2(gadget))
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return 0x19;
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else if (gadget_is_amd5536udc(gadget))
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return 0x20;
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else if (gadget_is_m66592(gadget))
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return 0x21;
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else if (gadget_is_fsl_qe(gadget))
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return 0x22;
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else if (gadget_is_ci13xxx(gadget))
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return 0x23;
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else if (gadget_is_langwell(gadget))
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return 0x24;
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else if (gadget_is_r8a66597(gadget))
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return 0x25;
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else if (gadget_is_s3c_hsotg(gadget))
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return 0x26;
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return -ENOENT;
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}
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/**
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* gadget_supports_altsettings - return true if altsettings work
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* @gadget: the gadget in question
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*/
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static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
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{
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/* PXA 21x/25x/26x has no altsettings at all */
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if (gadget_is_pxa(gadget))
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return false;
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/* PXA 27x and 3xx have *broken* altsetting support */
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if (gadget_is_pxa27x(gadget))
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return false;
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/* Everything else is *presumably* fine ... */
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return true;
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}
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#endif /* __GADGET_CHIPS_H */
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