diff options
Diffstat (limited to 'drivers/usb/gadget/gadget_chips.h')
| -rw-r--r-- | drivers/usb/gadget/gadget_chips.h | 168 |
1 files changed, 38 insertions, 130 deletions
diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index 8cbae21d84b..bcd04bc66b9 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -3,145 +3,53 @@ * gadget drivers or other code that needs to deal with them, and which * autoconfigures instead of using early binding to the hardware. * - * This could eventually work like the ARM mach_is_*() stuff, driven by + * 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 the runtime comparisons in typical one-choice cases.) + * (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. */ -#ifdef CONFIG_USB_GADGET_NET2280 -#define gadget_is_net2280(g) !strcmp("net2280", (g)->name) -#else -#define gadget_is_net2280(g) 0 -#endif -#ifdef CONFIG_USB_GADGET_DUMMY_HCD -#define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name) -#else -#define gadget_is_dummy(g) 0 -#endif +#ifndef __GADGET_CHIPS_H +#define __GADGET_CHIPS_H -#ifdef CONFIG_USB_GADGET_PXA2XX -#define gadget_is_pxa(g) !strcmp("pxa2xx_udc", (g)->name) -#else -#define gadget_is_pxa(g) 0 -#endif +#include <linux/usb/gadget.h> -#ifdef CONFIG_USB_GADGET_GOKU -#define gadget_is_goku(g) !strcmp("goku_udc", (g)->name) -#else -#define gadget_is_goku(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_SUPERH -#define gadget_is_sh(g) !strcmp("sh_udc", (g)->name) -#else -#define gadget_is_sh(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_SA1100 -#define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name) -#else -#define gadget_is_sa1100(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_LH7A40X -#define gadget_is_lh7a40x(g) !strcmp("lh7a40x_udc", (g)->name) -#else -#define gadget_is_lh7a40x(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_MQ11XX -#define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name) -#else -#define gadget_is_mq11xx(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_OMAP -#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name) -#else -#define gadget_is_omap(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_N9604 -#define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name) -#else -#define gadget_is_n9604(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_PXA27X -#define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name) -#else -#define gadget_is_pxa27x(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_S3C2410 -#define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name) -#else -#define gadget_is_s3c2410(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_AT91 -#define gadget_is_at91(g) !strcmp("at91_udc", (g)->name) -#else -#define gadget_is_at91(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_IMX -#define gadget_is_imx(g) !strcmp("imx_udc", (g)->name) -#else -#define gadget_is_imx(g) 0 -#endif - -// CONFIG_USB_GADGET_SX2 -// CONFIG_USB_GADGET_AU1X00 -// ... - - -/** - * 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. +/* + * NOTICE: the entries below are alphabetical and should be kept + * that way. * - * 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. + * Always be sure to add new entries to the correct position or + * accept the bashing later. * - * 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. + * If you have forgotten the alphabetical order let VIM/EMACS + * do that for you. */ -static inline int usb_gadget_controller_number(struct usb_gadget *gadget) +#define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name)) +#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name)) +#define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name)) +#define gadget_is_net2280(g) (!strcmp("net2280", (g)->name)) +#define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name)) +#define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name)) + +/** + * gadget_supports_altsettings - return true if altsettings work + * @gadget: the gadget in question + */ +static inline bool gadget_supports_altsettings(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_sh(gadget)) - return 0x04; - else if (gadget_is_sa1100(gadget)) - return 0x05; - else if (gadget_is_goku(gadget)) - return 0x06; - else if (gadget_is_mq11xx(gadget)) - return 0x07; - else if (gadget_is_omap(gadget)) - return 0x08; - else if (gadget_is_lh7a40x(gadget)) - return 0x09; - else if (gadget_is_n9604(gadget)) - return 0x10; - 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; - return -ENOENT; + /* 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 */ |