forked from Minki/linux
USB Gadget driver for Samsung s3c2410 ARM SoC
This patch adds the support for the Usb Device Controller on Samsung S3C24xx SoCs. This driver passes all tests from testusb (including #13) and has been tested on S3C2410, S3C24212, and S3C2440 SoCs. Whitespace updates, minor cleanups by David Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: Herbert Pötzl <herbert@13thfloor.at> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Arnaud Patard
Greg Kroah-Hartman
parent
7a4eb7fd50
commit
3fc154b6b8
@ -208,6 +208,27 @@ config USB_OTG
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Select this only if your OMAP board has a Mini-AB connector.
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config USB_GADGET_S3C2410
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boolean "S3C2410 USB Device Controller"
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depends on ARCH_S3C2410
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help
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Samsung's S3C2410 is an ARM-4 processor with an integrated
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full speed USB 1.1 device controller. It has 4 configurable
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endpoints, as well as endpoint zero (for control transfers).
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This driver has been tested on the S3C2410, S3C2412, and
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S3C2440 processors.
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config USB_S3C2410
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tristate
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depends on USB_GADGET_S3C2410
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_S3C2410_DEBUG
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boolean "S3C2410 udc debug messages"
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depends on USB_GADGET_S3C2410
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config USB_GADGET_AT91
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boolean "AT91 USB Device Port"
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depends on ARCH_AT91 && !ARCH_AT91SAM9RL
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@ -7,6 +7,7 @@ obj-$(CONFIG_USB_PXA2XX) += pxa2xx_udc.o
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obj-$(CONFIG_USB_GOKU) += goku_udc.o
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obj-$(CONFIG_USB_OMAP) += omap_udc.o
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obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o
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obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o
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obj-$(CONFIG_USB_AT91) += at91_udc.o
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obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o
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obj-$(CONFIG_USB_M66592) += m66592-udc.o
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2078
drivers/usb/gadget/s3c2410_udc.c
Normal file
2078
drivers/usb/gadget/s3c2410_udc.c
Normal file
File diff suppressed because it is too large
Load Diff
110
drivers/usb/gadget/s3c2410_udc.h
Normal file
110
drivers/usb/gadget/s3c2410_udc.h
Normal file
@ -0,0 +1,110 @@
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/*
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* linux/drivers/usb/gadget/s3c2410_udc.h
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* Samsung on-chip full speed USB device controllers
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*
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* Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard
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* Additional cleanups by Ben Dooks <ben-linux@fluff.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _S3C2410_UDC_H
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#define _S3C2410_UDC_H
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struct s3c2410_ep {
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struct list_head queue;
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unsigned long last_io; /* jiffies timestamp */
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struct usb_gadget *gadget;
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struct s3c2410_udc *dev;
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const struct usb_endpoint_descriptor *desc;
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struct usb_ep ep;
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u8 num;
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unsigned short fifo_size;
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u8 bEndpointAddress;
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u8 bmAttributes;
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unsigned halted : 1;
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unsigned already_seen : 1;
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unsigned setup_stage : 1;
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};
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/* Warning : ep0 has a fifo of 16 bytes */
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/* Don't try to set 32 or 64 */
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/* also testusb 14 fails wit 16 but is */
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/* fine with 8 */
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#define EP0_FIFO_SIZE 8
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#define EP_FIFO_SIZE 64
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#define DEFAULT_POWER_STATE 0x00
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#define S3C2440_EP_FIFO_SIZE 128
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static const char ep0name [] = "ep0";
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static const char *const ep_name[] = {
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ep0name, /* everyone has ep0 */
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/* s3c2410 four bidirectional bulk endpoints */
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"ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
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};
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#define S3C2410_ENDPOINTS ARRAY_SIZE(ep_name)
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struct s3c2410_request {
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struct list_head queue; /* ep's requests */
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struct usb_request req;
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};
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enum ep0_state {
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EP0_IDLE,
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EP0_IN_DATA_PHASE,
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EP0_OUT_DATA_PHASE,
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EP0_END_XFER,
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EP0_STALL,
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};
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static const char *ep0states[]= {
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"EP0_IDLE",
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"EP0_IN_DATA_PHASE",
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"EP0_OUT_DATA_PHASE",
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"EP0_END_XFER",
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"EP0_STALL",
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};
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struct s3c2410_udc {
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spinlock_t lock;
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struct s3c2410_ep ep[S3C2410_ENDPOINTS];
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int address;
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struct usb_gadget gadget;
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struct usb_gadget_driver *driver;
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struct s3c2410_request fifo_req;
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u8 fifo_buf[EP_FIFO_SIZE];
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u16 devstatus;
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u32 port_status;
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int ep0state;
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unsigned got_irq : 1;
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unsigned req_std : 1;
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unsigned req_config : 1;
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unsigned req_pending : 1;
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u8 vbus;
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struct dentry *regs_info;
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};
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#endif
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