From e87bb7118c4f752de4616a7ab56c51ed3e7f6f53 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 6 Sep 2012 20:11:11 +0200 Subject: [PATCH] usb: gadget: move global vars from epautoconf into struct usb_gadget epautoconf has two global variables which count the endpoint number of last assigned endpoint. This patch removes the global variable and keeps it as per (UDC) gadget. While here, the ifdef is removed and now the in and outpoint are enumerated unconditionally. The dwc3 for instance supports 32 endpoints in total. Acked-by: Michal Nazarewicz Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- drivers/usb/gadget/epautoconf.c | 27 ++++++--------------------- include/linux/usb/gadget.h | 4 ++++ 2 files changed, 10 insertions(+), 21 deletions(-) diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 51f3d42f5a6..d5a905dbed0 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -22,17 +22,6 @@ #include "gadget_chips.h" - -/* we must assign addresses for configurable endpoints (like net2280) */ -static unsigned epnum; - -// #define MANY_ENDPOINTS -#ifdef MANY_ENDPOINTS -/* more than 15 configurable endpoints */ -static unsigned in_epnum; -#endif - - /* * This should work with endpoints from controller drivers sharing the * same endpoint naming convention. By example: @@ -176,16 +165,14 @@ ep_matches ( if (isdigit (ep->name [2])) { u8 num = simple_strtoul (&ep->name [2], NULL, 10); desc->bEndpointAddress |= num; -#ifdef MANY_ENDPOINTS } else if (desc->bEndpointAddress & USB_DIR_IN) { - if (++in_epnum > 15) + if (++gadget->in_epnum > 15) return 0; - desc->bEndpointAddress = USB_DIR_IN | in_epnum; -#endif + desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum; } else { - if (++epnum > 15) + if (++gadget->out_epnum > 15) return 0; - desc->bEndpointAddress |= epnum; + desc->bEndpointAddress |= gadget->out_epnum; } /* report (variable) full speed bulk maxpacket */ @@ -385,9 +372,7 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget) list_for_each_entry (ep, &gadget->ep_list, ep_list) { ep->driver_data = NULL; } -#ifdef MANY_ENDPOINTS - in_epnum = 0; -#endif - epnum = 0; + gadget->in_epnum = 0; + gadget->out_epnum = 0; } diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 822c1b88f95..5b6e5088824 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -503,6 +503,8 @@ struct usb_gadget_ops { * @name: Identifies the controller hardware type. Used in diagnostics * and sometimes configuration. * @dev: Driver model state for this abstract device. + * @out_epnum: last used out ep number + * @in_epnum: last used in ep number * * Gadgets have a mostly-portable "gadget driver" implementing device * functions, handling all usb configurations and interfaces. Gadget @@ -537,6 +539,8 @@ struct usb_gadget { unsigned a_alt_hnp_support:1; const char *name; struct device dev; + unsigned out_epnum; + unsigned in_epnum; }; static inline void set_gadget_data(struct usb_gadget *gadget, void *data) -- 2.46.0