gadget_chips.h

Go to the documentation of this file.

/*
 * 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_bcm63xx(g)        (!strcmp("bcm63xx_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))

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;
    else if (gadget_is_bcm63xx(gadget))
        return 0x34;

    return -ENOENT;
}


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 */