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3948f0e0c9
Some of Freescale SoC chips have a QE or CPM co-processor which supports full speed USB. The driver adds device mode support of both QE and CPM USB controller to Linux USB gadget. The driver is tested with MPC8360 and MPC8272, and should work with other models having QE/CPM given minor tweaks. Signed-off-by: Xie Xiaobo <X.Xie@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
255 lines
6.5 KiB
C
255 lines
6.5 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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/* SH3 UDC -- not yet ported 2.4 --> 2.6 */
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#ifdef CONFIG_USB_GADGET_SUPERH
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#define gadget_is_sh(g) !strcmp("sh_udc", (g)->name)
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#else
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#define gadget_is_sh(g) 0
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#endif
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/* not yet stable on 2.6 (would help "original Zaurus") */
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#ifdef CONFIG_USB_GADGET_SA1100
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#define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name)
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#else
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#define gadget_is_sa1100(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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/* handhelds.org tree (?) */
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#ifdef CONFIG_USB_GADGET_MQ11XX
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#define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name)
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#else
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#define gadget_is_mq11xx(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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/* not yet ported 2.4 --> 2.6 */
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#ifdef CONFIG_USB_GADGET_N9604
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#define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name)
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#else
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#define gadget_is_n9604(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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/* status unclear */
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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 function controller */
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/* from Montavista kernel (?) */
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#ifdef CONFIG_USB_GADGET_MUSBHSFC
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#define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name)
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#else
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#define gadget_is_musbhsfc(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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/* from Montavista kernel (?) */
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#ifdef CONFIG_USB_GADGET_MPC8272
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#define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name)
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#else
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#define gadget_is_mpc8272(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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// CONFIG_USB_GADGET_SX2
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// CONFIG_USB_GADGET_AU1X00
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// ...
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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_sh(gadget))
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return 0x04;
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else if (gadget_is_sa1100(gadget))
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return 0x05;
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else if (gadget_is_goku(gadget))
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return 0x06;
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else if (gadget_is_mq11xx(gadget))
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return 0x07;
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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_n9604(gadget))
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return 0x10;
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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_musbhsfc(gadget))
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return 0x15;
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else if (gadget_is_musbhdrc(gadget))
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return 0x16;
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else if (gadget_is_mpc8272(gadget))
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return 0x17;
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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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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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/* SH3 hardware just doesn't do altsettings */
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if (gadget_is_sh(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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