summaryrefslogtreecommitdiff
path: root/drivers/usb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/Kconfig1
-rw-r--r--drivers/usb/gadget/Kconfig12
-rw-r--r--drivers/usb/gadget/Makefile1
-rw-r--r--drivers/usb/gadget/gadget_chips.h8
-rw-r--r--drivers/usb/gadget/lh7a40x_udc.c2152
-rw-r--r--drivers/usb/gadget/lh7a40x_udc.h259
-rw-r--r--drivers/usb/host/ohci-hcd.c5
-rw-r--r--drivers/usb/host/ohci-lh7a404.c252
-rw-r--r--drivers/usb/host/ohci.h10
9 files changed, 0 insertions, 2700 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index fceea5e4e02f..41b6e51188e4 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -31,7 +31,6 @@ config USB_ARCH_HAS_OHCI
# ARM:
default y if SA1111
default y if ARCH_OMAP
- default y if ARCH_LH7A404
default y if ARCH_S3C2410
default y if PXA27x
default y if PXA3xx
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 1dc9739277b4..08a48ae23745 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -176,18 +176,6 @@ config USB_FSL_USB2
default USB_GADGET
select USB_GADGET_SELECTED
-config USB_GADGET_LH7A40X
- boolean "LH7A40X"
- depends on ARCH_LH7A40X
- help
- This driver provides USB Device Controller driver for LH7A40x
-
-config USB_LH7A40X
- tristate
- depends on USB_GADGET_LH7A40X
- default USB_GADGET
- select USB_GADGET_SELECTED
-
config USB_GADGET_OMAP
boolean "OMAP USB Device Controller"
depends on ARCH_OMAP
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 55f5e8ae5924..a2f7f9a4f4a8 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_USB_PXA27X) += pxa27x_udc.o
obj-$(CONFIG_USB_IMX) += imx_udc.o
obj-$(CONFIG_USB_GOKU) += goku_udc.o
obj-$(CONFIG_USB_OMAP) += omap_udc.o
-obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o
obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o
obj-$(CONFIG_USB_AT91) += at91_udc.o
obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o
diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index 5c2720d64ffa..e896f6359dfe 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -45,12 +45,6 @@
#define gadget_is_goku(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_OMAP
#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name)
#else
@@ -181,8 +175,6 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
return 0x06;
else if (gadget_is_omap(gadget))
return 0x08;
- else if (gadget_is_lh7a40x(gadget))
- return 0x09;
else if (gadget_is_pxa27x(gadget))
return 0x11;
else if (gadget_is_s3c2410(gadget))
diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c
deleted file mode 100644
index 6b58bd8ce623..000000000000
--- a/drivers/usb/gadget/lh7a40x_udc.c
+++ /dev/null
@@ -1,2152 +0,0 @@
-/*
- * linux/drivers/usb/gadget/lh7a40x_udc.c
- * Sharp LH7A40x on-chip full speed USB device controllers
- *
- * Copyright (C) 2004 Mikko Lahteenmaki, Nordic ID
- * Copyright (C) 2004 Bo Henriksen, Nordic ID
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include "lh7a40x_udc.h"
-
-//#define DEBUG printk
-//#define DEBUG_EP0 printk
-//#define DEBUG_SETUP printk
-
-#ifndef DEBUG_EP0
-# define DEBUG_EP0(fmt,args...)
-#endif
-#ifndef DEBUG_SETUP
-# define DEBUG_SETUP(fmt,args...)
-#endif
-#ifndef DEBUG
-# define NO_STATES
-# define DEBUG(fmt,args...)
-#endif
-
-#define DRIVER_DESC "LH7A40x USB Device Controller"
-#define DRIVER_VERSION __DATE__
-
-#ifndef _BIT /* FIXME - what happended to _BIT in 2.6.7bk18? */
-#define _BIT(x) (1<<(x))
-#endif
-
-struct lh7a40x_udc *the_controller;
-
-static const char driver_name[] = "lh7a40x_udc";
-static const char driver_desc[] = DRIVER_DESC;
-static const char ep0name[] = "ep0-control";
-
-/*
- Local definintions.
-*/
-
-#ifndef NO_STATES
-static char *state_names[] = {
- "WAIT_FOR_SETUP",
- "DATA_STATE_XMIT",
- "DATA_STATE_NEED_ZLP",
- "WAIT_FOR_OUT_STATUS",
- "DATA_STATE_RECV"
-};
-#endif
-
-/*
- Local declarations.
-*/
-static int lh7a40x_ep_enable(struct usb_ep *ep,
- const struct usb_endpoint_descriptor *);
-static int lh7a40x_ep_disable(struct usb_ep *ep);
-static struct usb_request *lh7a40x_alloc_request(struct usb_ep *ep, gfp_t);
-static void lh7a40x_free_request(struct usb_ep *ep, struct usb_request *);
-static int lh7a40x_queue(struct usb_ep *ep, struct usb_request *, gfp_t);
-static int lh7a40x_dequeue(struct usb_ep *ep, struct usb_request *);
-static int lh7a40x_set_halt(struct usb_ep *ep, int);
-static int lh7a40x_fifo_status(struct usb_ep *ep);
-static void lh7a40x_fifo_flush(struct usb_ep *ep);
-static void lh7a40x_ep0_kick(struct lh7a40x_udc *dev, struct lh7a40x_ep *ep);
-static void lh7a40x_handle_ep0(struct lh7a40x_udc *dev, u32 intr);
-
-static void done(struct lh7a40x_ep *ep, struct lh7a40x_request *req,
- int status);
-static void pio_irq_enable(int bEndpointAddress);
-static void pio_irq_disable(int bEndpointAddress);
-static void stop_activity(struct lh7a40x_udc *dev,
- struct usb_gadget_driver *driver);
-static void flush(struct lh7a40x_ep *ep);
-static void udc_enable(struct lh7a40x_udc *dev);
-static void udc_set_address(struct lh7a40x_udc *dev, unsigned char address);
-
-static struct usb_ep_ops lh7a40x_ep_ops = {
- .enable = lh7a40x_ep_enable,
- .disable = lh7a40x_ep_disable,
-
- .alloc_request = lh7a40x_alloc_request,
- .free_request = lh7a40x_free_request,
-
- .queue = lh7a40x_queue,
- .dequeue = lh7a40x_dequeue,
-
- .set_halt = lh7a40x_set_halt,
- .fifo_status = lh7a40x_fifo_status,
- .fifo_flush = lh7a40x_fifo_flush,
-};
-
-/* Inline code */
-
-static __inline__ int write_packet(struct lh7a40x_ep *ep,
- struct lh7a40x_request *req, int max)
-{
- u8 *buf;
- int length, count;
- volatile u32 *fifo = (volatile u32 *)ep->fifo;
-
- buf = req->req.buf + req->req.actual;
- prefetch(buf);
-
- length = req->req.length - req->req.actual;
- length = min(length, max);
- req->req.actual += length;
-
- DEBUG("Write %d (max %d), fifo %p\n", length, max, fifo);
-
- count = length;
- while (count--) {
- *fifo = *buf++;
- }
-
- return length;
-}
-
-static __inline__ void usb_set_index(u32 ep)
-{
- *(volatile u32 *)io_p2v(USB_INDEX) = ep;
-}
-
-static __inline__ u32 usb_read(u32 port)
-{
- return *(volatile u32 *)io_p2v(port);
-}
-
-static __inline__ void usb_write(u32 val, u32 port)
-{
- *(volatile u32 *)io_p2v(port) = val;
-}
-
-static __inline__ void usb_set(u32 val, u32 port)
-{
- volatile u32 *ioport = (volatile u32 *)io_p2v(port);
- u32 after = (*ioport) | val;
- *ioport = after;
-}
-
-static __inline__ void usb_clear(u32 val, u32 port)
-{
- volatile u32 *ioport = (volatile u32 *)io_p2v(port);
- u32 after = (*ioport) & ~val;
- *ioport = after;
-}
-
-/*-------------------------------------------------------------------------*/
-
-#define GPIO_PORTC_DR (0x80000E08)
-#define GPIO_PORTC_DDR (0x80000E18)
-#define GPIO_PORTC_PDR (0x80000E70)
-
-/* get port C pin data register */
-#define get_portc_pdr(bit) ((usb_read(GPIO_PORTC_PDR) & _BIT(bit)) != 0)
-/* get port C data direction register */
-#define get_portc_ddr(bit) ((usb_read(GPIO_PORTC_DDR) & _BIT(bit)) != 0)
-/* set port C data register */
-#define set_portc_dr(bit, val) (val ? usb_set(_BIT(bit), GPIO_PORTC_DR) : usb_clear(_BIT(bit), GPIO_PORTC_DR))
-/* set port C data direction register */
-#define set_portc_ddr(bit, val) (val ? usb_set(_BIT(bit), GPIO_PORTC_DDR) : usb_clear(_BIT(bit), GPIO_PORTC_DDR))
-
-/*
- * LPD7A404 GPIO's:
- * Port C bit 1 = USB Port 1 Power Enable
- * Port C bit 2 = USB Port 1 Data Carrier Detect
- */
-#define is_usb_connected() get_portc_pdr(2)
-
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
-
-static const char proc_node_name[] = "driver/udc";
-
-static int
-udc_proc_read(char *page, char **start, off_t off, int count,
- int *eof, void *_dev)
-{
- char *buf = page;
- struct lh7a40x_udc *dev = _dev;
- char *next = buf;
- unsigned size = count;
- unsigned long flags;
- int t;
-
- if (off != 0)
- return 0;
-
- local_irq_save(flags);
-
- /* basic device status */
- t = scnprintf(next, size,
- DRIVER_DESC "\n"
- "%s version: %s\n"
- "Gadget driver: %s\n"
- "Host: %s\n\n",
- driver_name, DRIVER_VERSION,
- dev->driver ? dev->driver->driver.name : "(none)",
- is_usb_connected()? "full speed" : "disconnected");
- size -= t;
- next += t;
-
- t = scnprintf(next, size,
- "GPIO:\n"
- " Port C bit 1: %d, dir %d\n"
- " Port C bit 2: %d, dir %d\n\n",
- get_portc_pdr(1), get_portc_ddr(1),
- get_portc_pdr(2), get_portc_ddr(2)
- );
- size -= t;
- next += t;
-
- t = scnprintf(next, size,
- "DCP pullup: %d\n\n",
- (usb_read(USB_PM) & PM_USB_DCP) != 0);
- size -= t;
- next += t;
-
- local_irq_restore(flags);
- *eof = 1;
- return count - size;
-}
-
-#define create_proc_files() create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev)
-#define remove_proc_files() remove_proc_entry(proc_node_name, NULL)
-
-#else /* !CONFIG_USB_GADGET_DEBUG_FILES */
-
-#define create_proc_files() do {} while (0)
-#define remove_proc_files() do {} while (0)
-
-#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
-
-/*
- * udc_disable - disable USB device controller
- */
-static void udc_disable(struct lh7a40x_udc *dev)
-{
- DEBUG("%s, %p\n", __func__, dev);
-
- udc_set_address(dev, 0);
-
- /* Disable interrupts */
- usb_write(0, USB_IN_INT_EN);
- usb_write(0, USB_OUT_INT_EN);
- usb_write(0, USB_INT_EN);
-
- /* Disable the USB */
- usb_write(0, USB_PM);
-
-#ifdef CONFIG_ARCH_LH7A404
- /* Disable USB power */
- set_portc_dr(1, 0);
-#endif
-
- /* if hardware supports it, disconnect from usb */
- /* make_usb_disappear(); */
-
- dev->ep0state = WAIT_FOR_SETUP;
- dev->gadget.speed = USB_SPEED_UNKNOWN;
- dev->usb_address = 0;
-}
-
-/*
- * udc_reinit - initialize software state
- */
-static void udc_reinit(struct lh7a40x_udc *dev)
-{
- u32 i;
-
- DEBUG("%s, %p\n", __func__, dev);
-
- /* device/ep0 records init */
- INIT_LIST_HEAD(&dev->gadget.ep_list);
- INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
- dev->ep0state = WAIT_FOR_SETUP;
-
- /* basic endpoint records init */
- for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
- struct lh7a40x_ep *ep = &dev->ep[i];
-
- if (i != 0)
- list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
-
- ep->desc = 0;
- ep->stopped = 0;
- INIT_LIST_HEAD(&ep->queue);
- ep->pio_irqs = 0;
- }
-
- /* the rest was statically initialized, and is read-only */
-}
-
-#define BYTES2MAXP(x) (x / 8)
-#define MAXP2BYTES(x) (x * 8)
-
-/* until it's enabled, this UDC should be completely invisible
- * to any USB host.
- */
-static void udc_enable(struct lh7a40x_udc *dev)
-{
- int ep;
-
- DEBUG("%s, %p\n", __func__, dev);
-
- dev->gadget.speed = USB_SPEED_UNKNOWN;
-
-#ifdef CONFIG_ARCH_LH7A404
- /* Set Port C bit 1 & 2 as output */
- set_portc_ddr(1, 1);
- set_portc_ddr(2, 1);
-
- /* Enable USB power */
- set_portc_dr(1, 0);
-#endif
-
- /*
- * C.f Chapter 18.1.3.1 Initializing the USB
- */
-
- /* Disable the USB */
- usb_clear(PM_USB_ENABLE, USB_PM);
-
- /* Reset APB & I/O sides of the USB */
- usb_set(USB_RESET_APB | USB_RESET_IO, USB_RESET);
- mdelay(5);
- usb_clear(USB_RESET_APB | USB_RESET_IO, USB_RESET);
-
- /* Set MAXP values for each */
- for (ep = 0; ep < UDC_MAX_ENDPOINTS; ep++) {
- struct lh7a40x_ep *ep_reg = &dev->ep[ep];
- u32 csr;
-
- usb_set_index(ep);
-
- switch (ep_reg->ep_type) {
- case ep_bulk_in:
- case ep_interrupt:
- usb_clear(USB_IN_CSR2_USB_DMA_EN | USB_IN_CSR2_AUTO_SET,
- ep_reg->csr2);
- /* Fall through */
- case ep_control:
- usb_write(BYTES2MAXP(ep_maxpacket(ep_reg)),
- USB_IN_MAXP);
- break;
- case ep_bulk_out:
- usb_clear(USB_OUT_CSR2_USB_DMA_EN |
- USB_OUT_CSR2_AUTO_CLR, ep_reg->csr2);
- usb_write(BYTES2MAXP(ep_maxpacket(ep_reg)),
- USB_OUT_MAXP);
- break;
- }
-
- /* Read & Write CSR1, just in case */
- csr = usb_read(ep_reg->csr1);
- usb_write(csr, ep_reg->csr1);
-
- flush(ep_reg);
- }
-
- /* Disable interrupts */
- usb_write(0, USB_IN_INT_EN);
- usb_write(0, USB_OUT_INT_EN);
- usb_write(0, USB_INT_EN);
-
- /* Enable interrupts */
- usb_set(USB_IN_INT_EP0, USB_IN_INT_EN);
- usb_set(USB_INT_RESET_INT | USB_INT_RESUME_INT, USB_INT_EN);
- /* Dont enable rest of the interrupts */
- /* usb_set(USB_IN_INT_EP3 | USB_IN_INT_EP1 | USB_IN_INT_EP0, USB_IN_INT_EN);
- usb_set(USB_OUT_INT_EP2, USB_OUT_INT_EN); */
-
- /* Enable SUSPEND */
- usb_set(PM_ENABLE_SUSPEND, USB_PM);
-
- /* Enable the USB */
- usb_set(PM_USB_ENABLE, USB_PM);
-
-#ifdef CONFIG_ARCH_LH7A404
- /* NOTE: DOES NOT WORK! */
- /* Let host detect UDC:
- * Software must write a 0 to the PMR:DCP_CTRL bit to turn this
- * transistor on and pull the USBDP pin HIGH.
- */
- /* usb_clear(PM_USB_DCP, USB_PM);
- usb_set(PM_USB_DCP, USB_PM); */
-#endif
-}
-
-/*
- Register entry point for the peripheral controller driver.
-*/
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *))
-{
- struct lh7a40x_udc *dev = the_controller;
- int retval;
-
- DEBUG("%s: %s\n", __func__, driver->driver.name);
-
- if (!driver
- || driver->speed != USB_SPEED_FULL
- || !bind
- || !driver->disconnect
- || !driver->setup)
- return -EINVAL;
- if (!dev)
- return -ENODEV;
- if (dev->driver)
- return -EBUSY;
-
- /* first hook up the driver ... */
- dev->driver = driver;
- dev->gadget.dev.driver = &driver->driver;
-
- device_add(&dev->gadget.dev);
- retval = bind(&dev->gadget);
- if (retval) {
- printk(KERN_WARNING "%s: bind to driver %s --> error %d\n",
- dev->gadget.name, driver->driver.name, retval);
- device_del(&dev->gadget.dev);
-
- dev->driver = 0;
- dev->gadget.dev.driver = 0;
- return retval;
- }
-
- /* ... then enable host detection and ep0; and we're ready
- * for set_configuration as well as eventual disconnect.
- * NOTE: this shouldn't power up until later.
- */
- printk(KERN_WARNING "%s: registered gadget driver '%s'\n",
- dev->gadget.name, driver->driver.name);
-
- udc_enable(dev);
-
- return 0;
-}
-EXPORT_SYMBOL(usb_gadget_probe_driver);
-
-/*
- Unregister entry point for the peripheral controller driver.
-*/
-int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
-{
- struct lh7a40x_udc *dev = the_controller;
- unsigned long flags;
-
- if (!dev)
- return -ENODEV;
- if (!driver || driver != dev->driver || !driver->unbind)
- return -EINVAL;
-
- spin_lock_irqsave(&dev->lock, flags);
- dev->driver = 0;
- stop_activity(dev, driver);
- spin_unlock_irqrestore(&dev->lock, flags);
-
- driver->unbind(&dev->gadget);
- dev->gadget.dev.driver = NULL;
- device_del(&dev->gadget.dev);
-
- udc_disable(dev);
-
- DEBUG("unregistered gadget driver '%s'\n", driver->driver.name);
- return 0;
-}
-
-EXPORT_SYMBOL(usb_gadget_unregister_driver);
-
-/*-------------------------------------------------------------------------*/
-
-/** Write request to FIFO (max write == maxp size)
- * Return: 0 = still running, 1 = completed, negative = errno
- * NOTE: INDEX register must be set for EP
- */
-static int write_fifo(struct lh7a40x_ep *ep, struct lh7a40x_request *req)
-{
- u32 max;
- u32 csr;
-
- max = le16_to_cpu(ep->desc->wMaxPacketSize);
-
- csr = usb_read(ep->csr1);
- DEBUG("CSR: %x %d\n", csr, csr & USB_IN_CSR1_FIFO_NOT_EMPTY);
-
- if (!(csr & USB_IN_CSR1_FIFO_NOT_EMPTY)) {
- unsigned count;
- int is_last, is_short;
-
- count = write_packet(ep, req, max);
- usb_set(USB_IN_CSR1_IN_PKT_RDY, ep->csr1);
-
- /* last packet is usually short (or a zlp) */
- if (unlikely(count != max))
- is_last = is_short = 1;
- else {
- if (likely(req->req.length != req->req.actual)
- || req->req.zero)
- is_last = 0;
- else
- is_last = 1;
- /* interrupt/iso maxpacket may not fill the fifo */
- is_short = unlikely(max < ep_maxpacket(ep));
- }
-
- DEBUG("%s: wrote %s %d bytes%s%s %d left %p\n", __func__,
- ep->ep.name, count,
- is_last ? "/L" : "", is_short ? "/S" : "",
- req->req.length - req->req.actual, req);
-
- /* requests complete when all IN data is in the FIFO */
- if (is_last) {
- done(ep, req, 0);
- if (list_empty(&ep->queue)) {
- pio_irq_disable(ep_index(ep));
- }
- return 1;
- }
- } else {
- DEBUG("Hmm.. %d ep FIFO is not empty!\n", ep_index(ep));
- }
-
- return 0;
-}
-
-/** Read to request from FIFO (max read == bytes in fifo)
- * Return: 0 = still running, 1 = completed, negative = errno
- * NOTE: INDEX register must be set for EP
- */
-static int read_fifo(struct lh7a40x_ep *ep, struct lh7a40x_request *req)
-{
- u32 csr;
- u8 *buf;
- unsigned bufferspace, count, is_short;
- volatile u32 *fifo = (volatile u32 *)ep->fifo;
-
- /* make sure there's a packet in the FIFO. */
- csr = usb_read(ep->csr1);
- if (!(csr & USB_OUT_CSR1_OUT_PKT_RDY)) {
- DEBUG("%s: Packet NOT ready!\n", __func__);
- return -EINVAL;
- }
-
- buf = req->req.buf + req->req.actual;
- prefetchw(buf);
- bufferspace = req->req.length - req->req.actual;
-
- /* read all bytes from this packet */
- count = usb_read(USB_OUT_FIFO_WC1);
- req->req.actual += min(count, bufferspace);
-
- is_short = (count < ep->ep.maxpacket);
- DEBUG("read %s %02x, %d bytes%s req %p %d/%d\n",
- ep->ep.name, csr, count,
- is_short ? "/S" : "", req, req->req.actual, req->req.length);
-
- while (likely(count-- != 0)) {
- u8 byte = (u8) (*fifo & 0xff);
-
- if (unlikely(bufferspace == 0)) {
- /* this happens when the driver's buffer
- * is smaller than what the host sent.
- * discard the extra data.
- */
- if (req->req.status != -EOVERFLOW)
- printk(KERN_WARNING "%s overflow %d\n",
- ep->ep.name, count);
- req->req.status = -EOVERFLOW;
- } else {
- *buf++ = byte;
- bufferspace--;
- }
- }
-
- usb_clear(USB_OUT_CSR1_OUT_PKT_RDY, ep->csr1);
-
- /* completion */
- if (is_short || req->req.actual == req->req.length) {
- done(ep, req, 0);
- usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1);
-
- if (list_empty(&ep->queue))
- pio_irq_disable(ep_index(ep));
- return 1;
- }
-
- /* finished that packet. the next one may be waiting... */
- return 0;
-}
-
-/*
- * done - retire a request; caller blocked irqs
- * INDEX register is preserved to keep same
- */
-static void done(struct lh7a40x_ep *ep, struct lh7a40x_request *req, int status)
-{
- unsigned int stopped = ep->stopped;
- u32 index;
-
- DEBUG("%s, %p\n", __func__, ep);
- list_del_init(&req->queue);
-
- if (likely(req->req.status == -EINPROGRESS))
- req->req.status = status;
- else
- status = req->req.status;
-
- if (status && status != -ESHUTDOWN)
- DEBUG("complete %s req %p stat %d len %u/%u\n",
- ep->ep.name, &req->req, status,
- req->req.actual, req->req.length);
-
- /* don't modify queue heads during completion callback */
- ep->stopped = 1;
- /* Read current index (completion may modify it) */
- index = usb_read(USB_INDEX);
-
- spin_unlock(&ep->dev->lock);
- req->req.complete(&ep->ep, &req->req);
- spin_lock(&ep->dev->lock);
-
- /* Restore index */
- usb_set_index(index);
- ep->stopped = stopped;
-}
-
-/** Enable EP interrupt */
-static void pio_irq_enable(int ep)
-{
- DEBUG("%s: %d\n", __func__, ep);
-
- switch (ep) {
- case 1:
- usb_set(USB_IN_INT_EP1, USB_IN_INT_EN);
- break;
- case 2:
- usb_set(USB_OUT_INT_EP2, USB_OUT_INT_EN);
- break;
- case 3:
- usb_set(USB_IN_INT_EP3, USB_IN_INT_EN);
- break;
- default:
- DEBUG("Unknown endpoint: %d\n", ep);
- break;
- }
-}
-
-/** Disable EP interrupt */
-static void pio_irq_disable(int ep)
-{
- DEBUG("%s: %d\n", __func__, ep);
-
- switch (ep) {
- case 1:
- usb_clear(USB_IN_INT_EP1, USB_IN_INT_EN);
- break;
- case 2:
- usb_clear(USB_OUT_INT_EP2, USB_OUT_INT_EN);
- break;
- case 3:
- usb_clear(USB_IN_INT_EP3, USB_IN_INT_EN);
- break;
- default:
- DEBUG("Unknown endpoint: %d\n", ep);
- break;
- }
-}
-
-/*
- * nuke - dequeue ALL requests
- */
-void nuke(struct lh7a40x_ep *ep, int status)
-{
- struct lh7a40x_request *req;
-
- DEBUG("%s, %p\n", __func__, ep);
-
- /* Flush FIFO */
- flush(ep);
-
- /* called with irqs blocked */
- while (!list_empty(&ep->queue)) {
- req = list_entry(ep->queue.next, struct lh7a40x_request, queue);
- done(ep, req, status);
- }
-
- /* Disable IRQ if EP is enabled (has descriptor) */
- if (ep->desc)
- pio_irq_disable(ep_index(ep));
-}
-
-/*
-void nuke_all(struct lh7a40x_udc *dev)
-{
- int n;
- for(n=0; n<UDC_MAX_ENDPOINTS; n++) {
- struct lh7a40x_ep *ep = &dev->ep[n];
- usb_set_index(n);
- nuke(ep, 0);
- }
-}*/
-
-/*
-static void flush_all(struct lh7a40x_udc *dev)
-{
- int n;
- for (n = 0; n < UDC_MAX_ENDPOINTS; n++)
- {
- struct lh7a40x_ep *ep = &dev->ep[n];
- flush(ep);
- }
-}
-*/
-
-/** Flush EP
- * NOTE: INDEX register must be set before this call
- */
-static void flush(struct lh7a40x_ep *ep)
-{
- DEBUG("%s, %p\n", __func__, ep);
-
- switch (ep->ep_type) {
- case ep_control:
- /* check, by implication c.f. 15.1.2.11 */
- break;
-
- case ep_bulk_in:
- case ep_interrupt:
- /* if(csr & USB_IN_CSR1_IN_PKT_RDY) */
- usb_set(USB_IN_CSR1_FIFO_FLUSH, ep->csr1);
- break;
-
- case ep_bulk_out:
- /* if(csr & USB_OUT_CSR1_OUT_PKT_RDY) */
- usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1);
- break;
- }
-}
-
-/**
- * lh7a40x_in_epn - handle IN interrupt
- */
-static void lh7a40x_in_epn(struct lh7a40x_udc *dev, u32 ep_idx, u32 intr)
-{
- u32 csr;
- struct lh7a40x_ep *ep = &dev->ep[ep_idx];
- struct lh7a40x_request *req;
-
- usb_set_index(ep_idx);
-
- csr = usb_read(ep->csr1);
- DEBUG("%s: %d, csr %x\n", __func__, ep_idx, csr);
-
- if (csr & USB_IN_CSR1_SENT_STALL) {
- DEBUG("USB_IN_CSR1_SENT_STALL\n");
- usb_set(USB_IN_CSR1_SENT_STALL /*|USB_IN_CSR1_SEND_STALL */ ,
- ep->csr1);
- return;
- }
-
- if (!ep->desc) {
- DEBUG("%s: NO EP DESC\n", __func__);
- return;
- }
-
- if (list_empty(&ep->queue))
- req = 0;
- else
- req = list_entry(ep->queue.next, struct lh7a40x_request, queue);
-
- DEBUG("req: %p\n", req);
-
- if (!req)
- return;
-
- write_fifo(ep, req);
-}
-
-/* ********************************************************************************************* */
-/* Bulk OUT (recv)
- */
-
-static void lh7a40x_out_epn(struct lh7a40x_udc *dev, u32 ep_idx, u32 intr)
-{
- struct lh7a40x_ep *ep = &dev->ep[ep_idx];
- struct lh7a40x_request *req;
-
- DEBUG("%s: %d\n", __func__, ep_idx);
-
- usb_set_index(ep_idx);
-
- if (ep->desc) {
- u32 csr;
- csr = usb_read(ep->csr1);
-
- while ((csr =
- usb_read(ep->
- csr1)) & (USB_OUT_CSR1_OUT_PKT_RDY |
- USB_OUT_CSR1_SENT_STALL)) {
- DEBUG("%s: %x\n", __func__, csr);
-
- if (csr & USB_OUT_CSR1_SENT_STALL) {
- DEBUG("%s: stall sent, flush fifo\n",
- __func__);
- /* usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1); */
- flush(ep);
- } else if (csr & USB_OUT_CSR1_OUT_PKT_RDY) {
- if (list_empty(&ep->queue))
- req = 0;
- else
- req =
- list_entry(ep->queue.next,
- struct lh7a40x_request,
- queue);
-
- if (!req) {
- printk(KERN_WARNING
- "%s: NULL REQ %d\n",
- __func__, ep_idx);
- flush(ep);
- break;
- } else {
- read_fifo(ep, req);
- }
- }
-
- }
-
- } else {
- /* Throw packet away.. */
- printk(KERN_WARNING "%s: No descriptor?!?\n", __func__);
- flush(ep);
- }
-}
-
-static void stop_activity(struct lh7a40x_udc *dev,
- struct usb_gadget_driver *driver)
-{
- int i;
-
- /* don't disconnect drivers more than once */
- if (dev->gadget.speed == USB_SPEED_UNKNOWN)
- driver = 0;
- dev->gadget.speed = USB_SPEED_UNKNOWN;
-
- /* prevent new request submissions, kill any outstanding requests */
- for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
- struct lh7a40x_ep *ep = &dev->ep[i];
- ep->stopped = 1;
-
- usb_set_index(i);
- nuke(ep, -ESHUTDOWN);
- }
-
- /* report disconnect; the driver is already quiesced */
- if (driver) {
- spin_unlock(&dev->lock);
- driver->disconnect(&dev->gadget);
- spin_lock(&dev->lock);
- }
-
- /* re-init driver-visible data structures */
- udc_reinit(dev);
-}
-
-/** Handle USB RESET interrupt
- */
-static void lh7a40x_reset_intr(struct lh7a40x_udc *dev)
-{
-#if 0 /* def CONFIG_ARCH_LH7A404 */
- /* Does not work always... */
-
- DEBUG("%s: %d\n", __func__, dev->usb_address);
-
- if (!dev->usb_address) {
- /*usb_set(USB_RESET_IO, USB_RESET);
- mdelay(5);
- usb_clear(USB_RESET_IO, USB_RESET); */
- return;
- }
- /* Put the USB controller into reset. */
- usb_set(USB_RESET_IO, USB_RESET);
-
- /* Set Device ID to 0 */
- udc_set_address(dev, 0);
-
- /* Let PLL2 settle down */
- mdelay(5);
-
- /* Release the USB controller from reset */
- usb_clear(USB_RESET_IO, USB_RESET);
-
- /* Re-enable UDC */
- udc_enable(dev);
-
-#endif
- dev->gadget.speed = USB_SPEED_FULL;
-}
-
-/*
- * lh7a40x usb client interrupt handler.
- */
-static irqreturn_t lh7a40x_udc_irq(int irq, void *_dev)
-{
- struct lh7a40x_udc *dev = _dev;
-
- DEBUG("\n\n");
-
- spin_lock(&dev->lock);
-
- for (;;) {
- u32 intr_in = usb_read(USB_IN_INT);
- u32 intr_out = usb_read(USB_OUT_INT);
- u32 intr_int = usb_read(USB_INT);
-
- /* Test also against enable bits.. (lh7a40x errata).. Sigh.. */
- u32 in_en = usb_read(USB_IN_INT_EN);
- u32 out_en = usb_read(USB_OUT_INT_EN);
-
- if (!intr_out && !intr_in && !intr_int)
- break;
-
- DEBUG("%s (on state %s)\n", __func__,
- state_names[dev->ep0state]);
- DEBUG("intr_out = %x\n", intr_out);
- DEBUG("intr_in = %x\n", intr_in);
- DEBUG("intr_int = %x\n", intr_int);
-
- if (intr_in) {
- usb_write(intr_in, USB_IN_INT);
-
- if ((intr_in & USB_IN_INT_EP1)
- && (in_en & USB_IN_INT_EP1)) {
- DEBUG("USB_IN_INT_EP1\n");
- lh7a40x_in_epn(dev, 1, intr_in);
- }
- if ((intr_in & USB_IN_INT_EP3)
- && (in_en & USB_IN_INT_EP3)) {
- DEBUG("USB_IN_INT_EP3\n");
- lh7a40x_in_epn(dev, 3, intr_in);
- }
- if (intr_in & USB_IN_INT_EP0) {
- DEBUG("USB_IN_INT_EP0 (control)\n");
- lh7a40x_handle_ep0(dev, intr_in);
- }
- }
-
- if (intr_out) {
- usb_write(intr_out, USB_OUT_INT);
-
- if ((intr_out & USB_OUT_INT_EP2)
- && (out_en & USB_OUT_INT_EP2)) {
- DEBUG("USB_OUT_INT_EP2\n");
- lh7a40x_out_epn(dev, 2, intr_out);
- }
- }
-
- if (intr_int) {
- usb_write(intr_int, USB_INT);
-
- if (intr_int & USB_INT_RESET_INT) {
- lh7a40x_reset_intr(dev);
- }
-
- if (intr_int & USB_INT_RESUME_INT) {
- DEBUG("USB resume\n");
-
- if (dev->gadget.speed != USB_SPEED_UNKNOWN
- && dev->driver
- && dev->driver->resume
- && is_usb_connected()) {
- dev->driver->resume(&dev->gadget);
- }
- }
-
- if (intr_int & USB_INT_SUSPEND_INT) {
- DEBUG("USB suspend%s\n",
- is_usb_connected()? "" : "+disconnect");
- if (!is_usb_connected()) {
- stop_activity(dev, dev->driver);
- } else if (dev->gadget.speed !=
- USB_SPEED_UNKNOWN && dev->driver
- && dev->driver->suspend) {
- dev->driver->suspend(&dev->gadget);
- }
- }
-
- }
- }
-
- spin_unlock(&dev->lock);
-
- return IRQ_HANDLED;
-}
-
-static int lh7a40x_ep_enable(struct usb_ep *_ep,
- const struct usb_endpoint_descriptor *desc)
-{
- struct lh7a40x_ep *ep;
- struct lh7a40x_udc *dev;
- unsigned long flags;
-
- DEBUG("%s, %p\n", __func__, _ep);
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (!_ep || !desc || ep->desc || _ep->name == ep0name
- || desc->bDescriptorType != USB_DT_ENDPOINT
- || ep->bEndpointAddress != desc->bEndpointAddress
- || ep_maxpacket(ep) < le16_to_cpu(desc->wMaxPacketSize)) {
- DEBUG("%s, bad ep or descriptor\n", __func__);
- return -EINVAL;
- }
-
- /* xfer types must match, except that interrupt ~= bulk */
- if (ep->bmAttributes != desc->bmAttributes
- && ep->bmAttributes != USB_ENDPOINT_XFER_BULK
- && desc->bmAttributes != USB_ENDPOINT_XFER_INT) {
- DEBUG("%s, %s type mismatch\n", __func__, _ep->name);
- return -EINVAL;
- }
-
- /* hardware _could_ do smaller, but driver doesn't */
- if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK
- && le16_to_cpu(desc->wMaxPacketSize) != ep_maxpacket(ep))
- || !desc->wMaxPacketSize) {
- DEBUG("%s, bad %s maxpacket\n", __func__, _ep->name);
- return -ERANGE;
- }
-
- dev = ep->dev;
- if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
- DEBUG("%s, bogus device state\n", __func__);
- return -ESHUTDOWN;
- }
-
- spin_lock_irqsave(&ep->dev->lock, flags);
-
- ep->stopped = 0;
- ep->desc = desc;
- ep->pio_irqs = 0;
- ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
-
- spin_unlock_irqrestore(&ep->dev->lock, flags);
-
- /* Reset halt state (does flush) */
- lh7a40x_set_halt(_ep, 0);
-
- DEBUG("%s: enabled %s\n", __func__, _ep->name);
- return 0;
-}
-
-/** Disable EP
- * NOTE: Sets INDEX register
- */
-static int lh7a40x_ep_disable(struct usb_ep *_ep)
-{
- struct lh7a40x_ep *ep;
- unsigned long flags;
-
- DEBUG("%s, %p\n", __func__, _ep);
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (!_ep || !ep->desc) {
- DEBUG("%s, %s not enabled\n", __func__,
- _ep ? ep->ep.name : NULL);
- return -EINVAL;
- }
-
- spin_lock_irqsave(&ep->dev->lock, flags);
-
- usb_set_index(ep_index(ep));
-
- /* Nuke all pending requests (does flush) */
- nuke(ep, -ESHUTDOWN);
-
- /* Disable ep IRQ */
- pio_irq_disable(ep_index(ep));
-
- ep->desc = 0;
- ep->stopped = 1;
-
- spin_unlock_irqrestore(&ep->dev->lock, flags);
-
- DEBUG("%s: disabled %s\n", __func__, _ep->name);
- return 0;
-}
-
-static struct usb_request *lh7a40x_alloc_request(struct usb_ep *ep,
- gfp_t gfp_flags)
-{
- struct lh7a40x_request *req;
-
- DEBUG("%s, %p\n", __func__, ep);
-
- req = kzalloc(sizeof(*req), gfp_flags);
- if (!req)
- return 0;
-
- INIT_LIST_HEAD(&req->queue);
-
- return &req->req;
-}
-
-static void lh7a40x_free_request(struct usb_ep *ep, struct usb_request *_req)
-{
- struct lh7a40x_request *req;
-
- DEBUG("%s, %p\n", __func__, ep);
-
- req = container_of(_req, struct lh7a40x_request, req);
- WARN_ON(!list_empty(&req->queue));
- kfree(req);
-}
-
-/** Queue one request
- * Kickstart transfer if needed
- * NOTE: Sets INDEX register
- */
-static int lh7a40x_queue(struct usb_ep *_ep, struct usb_request *_req,
- gfp_t gfp_flags)
-{
- struct lh7a40x_request *req;
- struct lh7a40x_ep *ep;
- struct lh7a40x_udc *dev;
- unsigned long flags;
-
- DEBUG("\n\n\n%s, %p\n", __func__, _ep);
-
- req = container_of(_req, struct lh7a40x_request, req);
- if (unlikely
- (!_req || !_req->complete || !_req->buf
- || !list_empty(&req->queue))) {
- DEBUG("%s, bad params\n", __func__);
- return -EINVAL;
- }
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (unlikely(!_ep || (!ep->desc && ep->ep.name != ep0name))) {
- DEBUG("%s, bad ep\n", __func__);
- return -EINVAL;
- }
-
- dev = ep->dev;
- if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) {
- DEBUG("%s, bogus device state %p\n", __func__, dev->driver);
- return -ESHUTDOWN;
- }
-
- DEBUG("%s queue req %p, len %d buf %p\n", _ep->name, _req, _req->length,
- _req->buf);
-
- spin_lock_irqsave(&dev->lock, flags);
-
- _req->status = -EINPROGRESS;
- _req->actual = 0;
-
- /* kickstart this i/o queue? */
- DEBUG("Add to %d Q %d %d\n", ep_index(ep), list_empty(&ep->queue),
- ep->stopped);
- if (list_empty(&ep->queue) && likely(!ep->stopped)) {
- u32 csr;
-
- if (unlikely(ep_index(ep) == 0)) {
- /* EP0 */
- list_add_tail(&req->queue, &ep->queue);
- lh7a40x_ep0_kick(dev, ep);
- req = 0;
- } else if (ep_is_in(ep)) {
- /* EP1 & EP3 */
- usb_set_index(ep_index(ep));
- csr = usb_read(ep->csr1);
- pio_irq_enable(ep_index(ep));
- if ((csr & USB_IN_CSR1_FIFO_NOT_EMPTY) == 0) {
- if (write_fifo(ep, req) == 1)
- req = 0;
- }
- } else {
- /* EP2 */
- usb_set_index(ep_index(ep));
- csr = usb_read(ep->csr1);
- pio_irq_enable(ep_index(ep));
- if (!(csr & USB_OUT_CSR1_FIFO_FULL)) {
- if (read_fifo(ep, req) == 1)
- req = 0;
- }
- }
- }
-
- /* pio or dma irq handler advances the queue. */
- if (likely(req != 0))
- list_add_tail(&req->queue, &ep->queue);
-
- spin_unlock_irqrestore(&dev->lock, flags);
-
- return 0;
-}
-
-/* dequeue JUST ONE request */
-static int lh7a40x_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct lh7a40x_ep *ep;
- struct lh7a40x_request *req;
- unsigned long flags;
-
- DEBUG("%s, %p\n", __func__, _ep);
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (!_ep || ep->ep.name == ep0name)
- return -EINVAL;
-
- spin_lock_irqsave(&ep->dev->lock, flags);
-
- /* make sure it's actually queued on this endpoint */
- list_for_each_entry(req, &ep->queue, queue) {
- if (&req->req == _req)
- break;
- }
- if (&req->req != _req) {
- spin_unlock_irqrestore(&ep->dev->lock, flags);
- return -EINVAL;
- }
-
- done(ep, req, -ECONNRESET);
-
- spin_unlock_irqrestore(&ep->dev->lock, flags);
- return 0;
-}
-
-/** Halt specific EP
- * Return 0 if success
- * NOTE: Sets INDEX register to EP !
- */
-static int lh7a40x_set_halt(struct usb_ep *_ep, int value)
-{
- struct lh7a40x_ep *ep;
- unsigned long flags;
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (unlikely(!_ep || (!ep->desc && ep->ep.name != ep0name))) {
- DEBUG("%s, bad ep\n", __func__);
- return -EINVAL;
- }
-
- usb_set_index(ep_index(ep));
-
- DEBUG("%s, ep %d, val %d\n", __func__, ep_index(ep), value);
-
- spin_lock_irqsave(&ep->dev->lock, flags);
-
- if (ep_index(ep) == 0) {
- /* EP0 */
- usb_set(EP0_SEND_STALL, ep->csr1);
- } else if (ep_is_in(ep)) {
- u32 csr = usb_read(ep->csr1);
- if (value && ((csr & USB_IN_CSR1_FIFO_NOT_EMPTY)
- || !list_empty(&ep->queue))) {
- /*
- * Attempts to halt IN endpoints will fail (returning -EAGAIN)
- * if any transfer requests are still queued, or if the controller
- * FIFO still holds bytes that the host hasn't collected.
- */
- spin_unlock_irqrestore(&ep->dev->lock, flags);
- DEBUG
- ("Attempt to halt IN endpoint failed (returning -EAGAIN) %d %d\n",
- (csr & USB_IN_CSR1_FIFO_NOT_EMPTY),
- !list_empty(&ep->queue));
- return -EAGAIN;
- }
- flush(ep);
- if (value)
- usb_set(USB_IN_CSR1_SEND_STALL, ep->csr1);
- else {
- usb_clear(USB_IN_CSR1_SEND_STALL, ep->csr1);
- usb_set(USB_IN_CSR1_CLR_DATA_TOGGLE, ep->csr1);
- }
-
- } else {
-
- flush(ep);
- if (value)
- usb_set(USB_OUT_CSR1_SEND_STALL, ep->csr1);
- else {
- usb_clear(USB_OUT_CSR1_SEND_STALL, ep->csr1);
- usb_set(USB_OUT_CSR1_CLR_DATA_REG, ep->csr1);
- }
- }
-
- if (value) {
- ep->stopped = 1;
- } else {
- ep->stopped = 0;
- }
-
- spin_unlock_irqrestore(&ep->dev->lock, flags);
-
- DEBUG("%s %s halted\n", _ep->name, value == 0 ? "NOT" : "IS");
-
- return 0;
-}
-
-/** Return bytes in EP FIFO
- * NOTE: Sets INDEX register to EP
- */
-static int lh7a40x_fifo_status(struct usb_ep *_ep)
-{
- u32 csr;
- int count = 0;
- struct lh7a40x_ep *ep;
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (!_ep) {
- DEBUG("%s, bad ep\n", __func__);
- return -ENODEV;
- }
-
- DEBUG("%s, %d\n", __func__, ep_index(ep));
-
- /* LPD can't report unclaimed bytes from IN fifos */
- if (ep_is_in(ep))
- return -EOPNOTSUPP;
-
- usb_set_index(ep_index(ep));
-
- csr = usb_read(ep->csr1);
- if (ep->dev->gadget.speed != USB_SPEED_UNKNOWN ||
- csr & USB_OUT_CSR1_OUT_PKT_RDY) {
- count = usb_read(USB_OUT_FIFO_WC1);
- }
-
- return count;
-}
-
-/** Flush EP FIFO
- * NOTE: Sets INDEX register to EP
- */
-static void lh7a40x_fifo_flush(struct usb_ep *_ep)
-{
- struct lh7a40x_ep *ep;
-
- ep = container_of(_ep, struct lh7a40x_ep, ep);
- if (unlikely(!_ep || (!ep->desc && ep->ep.name != ep0name))) {
- DEBUG("%s, bad ep\n", __func__);
- return;
- }
-
- usb_set_index(ep_index(ep));
- flush(ep);
-}
-
-/****************************************************************/
-/* End Point 0 related functions */
-/****************************************************************/
-
-/* return: 0 = still running, 1 = completed, negative = errno */
-static int write_fifo_ep0(struct lh7a40x_ep *ep, struct lh7a40x_request *req)
-{
- u32 max;
- unsigned count;
- int is_last;
-
- max = ep_maxpacket(ep);
-
- DEBUG_EP0("%s\n", __func__);
-
- count = write_packet(ep, req, max);
-
- /* last packet is usually short (or a zlp) */
- if (unlikely(count != max))
- is_last = 1;
- else {
- if (likely(req->req.length != req->req.actual) || req->req.zero)
- is_last = 0;
- else
- is_last = 1;
- }
-
- DEBUG_EP0("%s: wrote %s %d bytes%s %d left %p\n", __func__,
- ep->ep.name, count,
- is_last ? "/L" : "", req->req.length - req->req.actual, req);
-
- /* requests complete when all IN data is in the FIFO */
- if (is_last) {
- done(ep, req, 0);
- return 1;
- }
-
- return 0;
-}
-
-static __inline__ int lh7a40x_fifo_read(struct lh7a40x_ep *ep,
- unsigned char *cp, int max)
-{
- int bytes;
- int count = usb_read(USB_OUT_FIFO_WC1);
- volatile u32 *fifo = (volatile u32 *)ep->fifo;
-
- if (count > max)
- count = max;
- bytes = count;
- while (count--)
- *cp++ = *fifo & 0xFF;
- return bytes;
-}
-
-static __inline__ void lh7a40x_fifo_write(struct lh7a40x_ep *ep,
- unsigned char *cp, int count)
-{
- volatile u32 *fifo = (volatile u32 *)ep->fifo;
- DEBUG_EP0("fifo_write: %d %d\n", ep_index(ep), count);
- while (count--)
- *fifo = *cp++;
-}
-
-static int read_fifo_ep0(struct lh7a40x_ep *ep, struct lh7a40x_request *req)
-{
- u32 csr;
- u8 *buf;
- unsigned bufferspace, count, is_short;
- volatile u32 *fifo = (volatile u32 *)ep->fifo;
-
- DEBUG_EP0("%s\n", __func__);
-
- csr = usb_read(USB_EP0_CSR);
- if (!(csr & USB_OUT_CSR1_OUT_PKT_RDY))
- return 0;
-
- buf = req->req.buf + req->req.actual;
- prefetchw(buf);
- bufferspace = req->req.length - req->req.actual;
-
- /* read all bytes from this packet */
- if (likely(csr & EP0_OUT_PKT_RDY)) {
- count = usb_read(USB_OUT_FIFO_WC1);
- req->req.actual += min(count, bufferspace);
- } else /* zlp */
- count = 0;
-
- is_short = (count < ep->ep.maxpacket);
- DEBUG_EP0("read %s %02x, %d bytes%s req %p %d/%d\n",
- ep->ep.name, csr, count,
- is_short ? "/S" : "", req, req->req.actual, req->req.length);
-
- while (likely(count-- != 0)) {
- u8 byte = (u8) (*fifo & 0xff);
-
- if (unlikely(bufferspace == 0)) {
- /* this happens when the driver's buffer
- * is smaller than what the host sent.
- * discard the extra data.
- */
- if (req->req.status != -EOVERFLOW)
- DEBUG_EP0("%s overflow %d\n", ep->ep.name,
- count);
- req->req.status = -EOVERFLOW;
- } else {
- *buf++ = byte;
- bufferspace--;
- }
- }
-
- /* completion */
- if (is_short || req->req.actual == req->req.length) {
- done(ep, req, 0);
- return 1;
- }
-
- /* finished that packet. the next one may be waiting... */
- return 0;
-}
-
-/**
- * udc_set_address - set the USB address for this device
- * @address:
- *
- * Called from control endpoint function after it decodes a set address setup packet.
- */
-static void udc_set_address(struct lh7a40x_udc *dev, unsigned char address)
-{
- DEBUG_EP0("%s: %d\n", __func__, address);
- /* c.f. 15.1.2.2 Table 15-4 address will be used after DATA_END is set */
- dev->usb_address = address;
- usb_set((address & USB_FA_FUNCTION_ADDR), USB_FA);
- usb_set(USB_FA_ADDR_UPDATE | (address & USB_FA_FUNCTION_ADDR), USB_FA);
- /* usb_read(USB_FA); */
-}
-
-/*
- * DATA_STATE_RECV (OUT_PKT_RDY)
- * - if error
- * set EP0_CLR_OUT | EP0_DATA_END | EP0_SEND_STALL bits
- * - else
- * set EP0_CLR_OUT bit
- if last set EP0_DATA_END bit
- */
-static void lh7a40x_ep0_out(struct lh7a40x_udc *dev, u32 csr)
-{
- struct lh7a40x_request *req;
- struct lh7a40x_ep *ep = &dev->ep[0];
- int ret;
-
- DEBUG_EP0("%s: %x\n", __func__, csr);
-
- if (list_empty(&ep->queue))
- req = 0;
- else
- req = list_entry(ep->queue.next, struct lh7a40x_request, queue);
-
- if (req) {
-
- if (req->req.length == 0) {
- DEBUG_EP0("ZERO LENGTH OUT!\n");
- usb_set((EP0_CLR_OUT | EP0_DATA_END), USB_EP0_CSR);
- dev->ep0state = WAIT_FOR_SETUP;
- return;
- }
- ret = read_fifo_ep0(ep, req);
- if (ret) {
- /* Done! */
- DEBUG_EP0("%s: finished, waiting for status\n",
- __func__);
-
- usb_set((EP0_CLR_OUT | EP0_DATA_END), USB_EP0_CSR);
- dev->ep0state = WAIT_FOR_SETUP;
- } else {
- /* Not done yet.. */
- DEBUG_EP0("%s: not finished\n", __func__);
- usb_set(EP0_CLR_OUT, USB_EP0_CSR);
- }
- } else {
- DEBUG_EP0("NO REQ??!\n");
- }
-}
-
-/*
- * DATA_STATE_XMIT
- */
-static int lh7a40x_ep0_in(struct lh7a40x_udc *dev, u32 csr)
-{
- struct lh7a40x_request *req;
- struct lh7a40x_ep *ep = &dev->ep[0];
- int ret, need_zlp = 0;
-
- DEBUG_EP0("%s: %x\n", __func__, csr);
-
- if (list_empty(&ep->queue))
- req = 0;
- else
- req = list_entry(ep->queue.next, struct lh7a40x_request, queue);
-
- if (!req) {
- DEBUG_EP0("%s: NULL REQ\n", __func__);
- return 0;
- }
-
- if (req->req.length == 0) {
-
- usb_set((EP0_IN_PKT_RDY | EP0_DATA_END), USB_EP0_CSR);
- dev->ep0state = WAIT_FOR_SETUP;
- return 1;
- }
-
- if (req->req.length - req->req.actual == EP0_PACKETSIZE) {
- /* Next write will end with the packet size, */
- /* so we need Zero-length-packet */
- need_zlp = 1;
- }
-
- ret = write_fifo_ep0(ep, req);
-
- if (ret == 1 && !need_zlp) {
- /* Last packet */
- DEBUG_EP0("%s: finished, waiting for status\n", __func__);
-
- usb_set((EP0_IN_PKT_RDY | EP0_DATA_END), USB_EP0_CSR);
- dev->ep0state = WAIT_FOR_SETUP;
- } else {
- DEBUG_EP0("%s: not finished\n", __func__);
- usb_set(EP0_IN_PKT_RDY, USB_EP0_CSR);
- }
-
- if (need_zlp) {
- DEBUG_EP0("%s: Need ZLP!\n", __func__);
- usb_set(EP0_IN_PKT_RDY, USB_EP0_CSR);
- dev->ep0state = DATA_STATE_NEED_ZLP;
- }
-
- return 1;
-}
-
-static int lh7a40x_handle_get_status(struct lh7a40x_udc *dev,
- struct usb_ctrlrequest *ctrl)
-{
- struct lh7a40x_ep *ep0 = &dev->ep[0];
- struct lh7a40x_ep *qep;
- int reqtype = (ctrl->bRequestType & USB_RECIP_MASK);
- u16 val = 0;
-
- if (reqtype == USB_RECIP_INTERFACE) {
- /* This is not supported.
- * And according to the USB spec, this one does nothing..
- * Just return 0
- */
- DEBUG_SETUP("GET_STATUS: USB_RECIP_INTERFACE\n");
- } else if (reqtype == USB_RECIP_DEVICE) {
- DEBUG_SETUP("GET_STATUS: USB_RECIP_DEVICE\n");
- val |= (1 << 0); /* Self powered */
- /*val |= (1<<1); *//* Remote wakeup */
- } else if (reqtype == USB_RECIP_ENDPOINT) {
- int ep_num = (ctrl->wIndex & ~USB_DIR_IN);
-
- DEBUG_SETUP
- ("GET_STATUS: USB_RECIP_ENDPOINT (%d), ctrl->wLength = %d\n",
- ep_num, ctrl->wLength);
-
- if (ctrl->wLength > 2 || ep_num > 3)
- return -EOPNOTSUPP;
-
- qep = &dev->ep[ep_num];
- if (ep_is_in(qep) != ((ctrl->wIndex & USB_DIR_IN) ? 1 : 0)
- && ep_index(qep) != 0) {
- return -EOPNOTSUPP;
- }
-
- usb_set_index(ep_index(qep));
-
- /* Return status on next IN token */
- switch (qep->ep_type) {
- case ep_control:
- val =
- (usb_read(qep->csr1) & EP0_SEND_STALL) ==
- EP0_SEND_STALL;
- break;
- case ep_bulk_in:
- case ep_interrupt:
- val =
- (usb_read(qep->csr1) & USB_IN_CSR1_SEND_STALL) ==
- USB_IN_CSR1_SEND_STALL;
- break;
- case ep_bulk_out:
- val =
- (usb_read(qep->csr1) & USB_OUT_CSR1_SEND_STALL) ==
- USB_OUT_CSR1_SEND_STALL;
- break;
- }
-
- /* Back to EP0 index */
- usb_set_index(0);
-
- DEBUG_SETUP("GET_STATUS, ep: %d (%x), val = %d\n", ep_num,
- ctrl->wIndex, val);
- } else {
- DEBUG_SETUP("Unknown REQ TYPE: %d\n", reqtype);
- return -EOPNOTSUPP;
- }
-
- /* Clear "out packet ready" */
- usb_set((EP0_CLR_OUT), USB_EP0_CSR);
- /* Put status to FIFO */
- lh7a40x_fifo_write(ep0, (u8 *) & val, sizeof(val));
- /* Issue "In packet ready" */
- usb_set((EP0_IN_PKT_RDY | EP0_DATA_END), USB_EP0_CSR);
-
- return 0;
-}
-
-/*
- * WAIT_FOR_SETUP (OUT_PKT_RDY)
- * - read data packet from EP0 FIFO
- * - decode command
- * - if error
- * set EP0_CLR_OUT | EP0_DATA_END | EP0_SEND_STALL bits
- * - else
- * set EP0_CLR_OUT | EP0_DATA_END bits
- */
-static void lh7a40x_ep0_setup(struct lh7a40x_udc *dev, u32 csr)
-{
- struct lh7a40x_ep *ep = &dev->ep[0];
- struct usb_ctrlrequest ctrl;
- int i, bytes, is_in;
-
- DEBUG_SETUP("%s: %x\n", __func__, csr);
-
- /* Nuke all previous transfers */
- nuke(ep, -EPROTO);
-
- /* read control req from fifo (8 bytes) */
- bytes = lh7a40x_fifo_read(ep, (unsigned char *)&ctrl, 8);
-
- DEBUG_SETUP("Read CTRL REQ %d bytes\n", bytes);
- DEBUG_SETUP("CTRL.bRequestType = %d (is_in %d)\n", ctrl.bRequestType,
- ctrl.bRequestType == USB_DIR_IN);
- DEBUG_SETUP("CTRL.bRequest = %d\n", ctrl.bRequest);
- DEBUG_SETUP("CTRL.wLength = %d\n", ctrl.wLength);
- DEBUG_SETUP("CTRL.wValue = %d (%d)\n", ctrl.wValue, ctrl.wValue >> 8);
- DEBUG_SETUP("CTRL.wIndex = %d\n", ctrl.wIndex);
-
- /* Set direction of EP0 */
- if (likely(ctrl.bRequestType & USB_DIR_IN)) {
- ep->bEndpointAddress |= USB_DIR_IN;
- is_in = 1;
- } else {
- ep->bEndpointAddress &= ~USB_DIR_IN;
- is_in = 0;
- }
-
- dev->req_pending = 1;
-
- /* Handle some SETUP packets ourselves */
- switch (ctrl.bRequest) {
- case USB_REQ_SET_ADDRESS:
- if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE))
- break;
-
- DEBUG_SETUP("USB_REQ_SET_ADDRESS (%d)\n", ctrl.wValue);
- udc_set_address(dev, ctrl.wValue);
- usb_set((EP0_CLR_OUT | EP0_DATA_END), USB_EP0_CSR);
- return;
-
- case USB_REQ_GET_STATUS:{
- if (lh7a40x_handle_get_status(dev, &ctrl) == 0)
- return;
-
- case USB_REQ_CLEAR_FEATURE:
- case USB_REQ_SET_FEATURE:
- if (ctrl.bRequestType == USB_RECIP_ENDPOINT) {
- struct lh7a40x_ep *qep;
- int ep_num = (ctrl.wIndex & 0x0f);
-
- /* Support only HALT feature */
- if (ctrl.wValue != 0 || ctrl.wLength != 0
- || ep_num > 3 || ep_num < 1)
- break;
-
- qep = &dev->ep[ep_num];
- spin_unlock(&dev->lock);
- if (ctrl.bRequest == USB_REQ_SET_FEATURE) {
- DEBUG_SETUP("SET_FEATURE (%d)\n",
- ep_num);
- lh7a40x_set_halt(&qep->ep, 1);
- } else {
- DEBUG_SETUP("CLR_FEATURE (%d)\n",
- ep_num);
- lh7a40x_set_halt(&qep->ep, 0);
- }
- spin_lock(&dev->lock);
- usb_set_index(0);
-
- /* Reply with a ZLP on next IN token */
- usb_set((EP0_CLR_OUT | EP0_DATA_END),
- USB_EP0_CSR);
- return;
- }
- break;
- }
-
- default:
- break;
- }
-
- if (likely(dev->driver)) {
- /* device-2-host (IN) or no data setup command, process immediately */
- spin_unlock(&dev->lock);
- i = dev->driver->setup(&dev->gadget, &ctrl);
- spin_lock(&dev->lock);
-
- if (i < 0) {
- /* setup processing failed, force stall */
- DEBUG_SETUP
- (" --> ERROR: gadget setup FAILED (stalling), setup returned %d\n",
- i);
- usb_set_index(0);
- usb_set((EP0_CLR_OUT | EP0_DATA_END | EP0_SEND_STALL),
- USB_EP0_CSR);
-
- /* ep->stopped = 1; */
- dev->ep0state = WAIT_FOR_SETUP;
- }
- }
-}
-
-/*
- * DATA_STATE_NEED_ZLP
- */
-static void lh7a40x_ep0_in_zlp(struct lh7a40x_udc *dev, u32 csr)
-{
- DEBUG_EP0("%s: %x\n", __func__, csr);
-
- /* c.f. Table 15-14 */
- usb_set((EP0_IN_PKT_RDY | EP0_DATA_END), USB_EP0_CSR);
- dev->ep0state = WAIT_FOR_SETUP;
-}
-
-/*
- * handle ep0 interrupt
- */
-static void lh7a40x_handle_ep0(struct lh7a40x_udc *dev, u32 intr)
-{
- struct lh7a40x_ep *ep = &dev->ep[0];
- u32 csr;
-
- /* Set index 0 */
- usb_set_index(0);
- csr = usb_read(USB_EP0_CSR);
-
- DEBUG_EP0("%s: csr = %x\n", __func__, csr);
-
- /*
- * For overview of what we should be doing see c.f. Chapter 18.1.2.4
- * We will follow that outline here modified by our own global state
- * indication which provides hints as to what we think should be
- * happening..
- */
-
- /*
- * if SENT_STALL is set
- * - clear the SENT_STALL bit
- */
- if (csr & EP0_SENT_STALL) {
- DEBUG_EP0("%s: EP0_SENT_STALL is set: %x\n", __func__, csr);
- usb_clear((EP0_SENT_STALL | EP0_SEND_STALL), USB_EP0_CSR);
- nuke(ep, -ECONNABORTED);
- dev->ep0state = WAIT_FOR_SETUP;
- return;
- }
-
- /*
- * if a transfer is in progress && IN_PKT_RDY and OUT_PKT_RDY are clear
- * - fill EP0 FIFO
- * - if last packet
- * - set IN_PKT_RDY | DATA_END
- * - else
- * set IN_PKT_RDY
- */
- if (!(csr & (EP0_IN_PKT_RDY | EP0_OUT_PKT_RDY))) {
- DEBUG_EP0("%s: IN_PKT_RDY and OUT_PKT_RDY are clear\n",
- __func__);
-
- switch (dev->ep0state) {
- case DATA_STATE_XMIT:
- DEBUG_EP0("continue with DATA_STATE_XMIT\n");
- lh7a40x_ep0_in(dev, csr);
- return;
- case DATA_STATE_NEED_ZLP:
- DEBUG_EP0("continue with DATA_STATE_NEED_ZLP\n");
- lh7a40x_ep0_in_zlp(dev, csr);
- return;
- default:
- /* Stall? */
- DEBUG_EP0("Odd state!! state = %s\n",
- state_names[dev->ep0state]);
- dev->ep0state = WAIT_FOR_SETUP;
- /* nuke(ep, 0); */
- /* usb_set(EP0_SEND_STALL, ep->csr1); */
- break;
- }
- }
-
- /*
- * if SETUP_END is set
- * - abort the last transfer
- * - set SERVICED_SETUP_END_BIT
- */
- if (csr & EP0_SETUP_END) {
- DEBUG_EP0("%s: EP0_SETUP_END is set: %x\n", __func__, csr);
-
- usb_set(EP0_CLR_SETUP_END, USB_EP0_CSR);
-
- nuke(ep, 0);
- dev->ep0state = WAIT_FOR_SETUP;
- }
-
- /*
- * if EP0_OUT_PKT_RDY is set
- * - read data packet from EP0 FIFO
- * - decode command
- * - if error
- * set SERVICED_OUT_PKT_RDY | DATA_END bits | SEND_STALL
- * - else
- * set SERVICED_OUT_PKT_RDY | DATA_END bits
- */
- if (csr & EP0_OUT_PKT_RDY) {
-
- DEBUG_EP0("%s: EP0_OUT_PKT_RDY is set: %x\n", __func__,
- csr);
-
- switch (dev->ep0state) {
- case WAIT_FOR_SETUP:
- DEBUG_EP0("WAIT_FOR_SETUP\n");
- lh7a40x_ep0_setup(dev, csr);
- break;
-
- case DATA_STATE_RECV:
- DEBUG_EP0("DATA_STATE_RECV\n");
- lh7a40x_ep0_out(dev, csr);
- break;
-
- default:
- /* send stall? */
- DEBUG_EP0("strange state!! 2. send stall? state = %d\n",
- dev->ep0state);
- break;
- }
- }
-}
-
-static void lh7a40x_ep0_kick(struct lh7a40x_udc *dev, struct lh7a40x_ep *ep)
-{
- u32 csr;
-
- usb_set_index(0);
- csr = usb_read(USB_EP0_CSR);
-
- DEBUG_EP0("%s: %x\n", __func__, csr);
-
- /* Clear "out packet ready" */
- usb_set(EP0_CLR_OUT, USB_EP0_CSR);
-
- if (ep_is_in(ep)) {
- dev->ep0state = DATA_STATE_XMIT;
- lh7a40x_ep0_in(dev, csr);
- } else {
- dev->ep0state = DATA_STATE_RECV;
- lh7a40x_ep0_out(dev, csr);
- }
-}
-
-/* ---------------------------------------------------------------------------
- * device-scoped parts of the api to the usb controller hardware
- * ---------------------------------------------------------------------------
- */
-
-static int lh7a40x_udc_get_frame(struct usb_gadget *_gadget)
-{
- u32 frame1 = usb_read(USB_FRM_NUM1); /* Least significant 8 bits */
- u32 frame2 = usb_read(USB_FRM_NUM2); /* Most significant 3 bits */
- DEBUG("%s, %p\n", __func__, _gadget);
- return ((frame2 & 0x07) << 8) | (frame1 & 0xff);
-}
-
-static int lh7a40x_udc_wakeup(struct usb_gadget *_gadget)
-{
- /* host may not have enabled remote wakeup */
- /*if ((UDCCS0 & UDCCS0_DRWF) == 0)
- return -EHOSTUNREACH;
- udc_set_mask_UDCCR(UDCCR_RSM); */
- return -ENOTSUPP;
-}
-
-static const struct usb_gadget_ops lh7a40x_udc_ops = {
- .get_frame = lh7a40x_udc_get_frame,
- .wakeup = lh7a40x_udc_wakeup,
- /* current versions must always be self-powered */
-};
-
-static void nop_release(struct device *dev)
-{
- DEBUG("%s %s\n", __func__, dev_name(dev));
-}
-
-static struct lh7a40x_udc memory = {
- .usb_address = 0,
-
- .gadget = {
- .ops = &lh7a40x_udc_ops,
- .ep0 = &memory.ep[0].ep,
- .name = driver_name,
- .dev = {
- .init_name = "gadget",
- .release = nop_release,
- },
- },
-
- /* control endpoint */
- .ep[0] = {
- .ep = {
- .name = ep0name,
- .ops = &lh7a40x_ep_ops,
- .maxpacket = EP0_PACKETSIZE,
- },
- .dev = &memory,
-
- .bEndpointAddress = 0,
- .bmAttributes = 0,
-
- .ep_type = ep_control,
- .fifo = io_p2v(USB_EP0_FIFO),
- .csr1 = USB_EP0_CSR,
- .csr2 = USB_EP0_CSR,
- },
-
- /* first group of endpoints */
- .ep[1] = {
- .ep = {
- .name = "ep1in-bulk",
- .ops = &lh7a40x_ep_ops,
- .maxpacket = 64,
- },
- .dev = &memory,
-
- .bEndpointAddress = USB_DIR_IN | 1,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
-
- .ep_type = ep_bulk_in,
- .fifo = io_p2v(USB_EP1_FIFO),
- .csr1 = USB_IN_CSR1,
- .csr2 = USB_IN_CSR2,
- },
-
- .ep[2] = {
- .ep = {
- .name = "ep2out-bulk",
- .ops = &lh7a40x_ep_ops,
- .maxpacket = 64,
- },
- .dev = &memory,
-
- .bEndpointAddress = 2,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
-
- .ep_type = ep_bulk_out,
- .fifo = io_p2v(USB_EP2_FIFO),
- .csr1 = USB_OUT_CSR1,
- .csr2 = USB_OUT_CSR2,
- },
-
- .ep[3] = {
- .ep = {
- .name = "ep3in-int",
- .ops = &lh7a40x_ep_ops,
- .maxpacket = 64,
- },
- .dev = &memory,
-
- .bEndpointAddress = USB_DIR_IN | 3,
- .bmAttributes = USB_ENDPOINT_XFER_INT,
-
- .ep_type = ep_interrupt,
- .fifo = io_p2v(USB_EP3_FIFO),
- .csr1 = USB_IN_CSR1,
- .csr2 = USB_IN_CSR2,
- },
-};
-
-/*
- * probe - binds to the platform device
- */
-static int lh7a40x_udc_probe(struct platform_device *pdev)
-{
- struct lh7a40x_udc *dev = &memory;
- int retval;
-
- DEBUG("%s: %p\n", __func__, pdev);
-
- spin_lock_init(&dev->lock);
- dev->dev = &pdev->dev;
-
- device_initialize(&dev->gadget.dev);
- dev->gadget.dev.parent = &pdev->dev;
-
- the_controller = dev;
- platform_set_drvdata(pdev, dev);
-
- udc_disable(dev);
- udc_reinit(dev);
-
- /* irq setup after old hardware state is cleaned up */
- retval =
- request_irq(IRQ_USBINTR, lh7a40x_udc_irq, IRQF_DISABLED, driver_name,
- dev);
- if (retval != 0) {
- DEBUG(KERN_ERR "%s: can't get irq %i, err %d\n", driver_name,
- IRQ_USBINTR, retval);
- return -EBUSY;
- }
-
- create_proc_files();
-
- return retval;
-}
-
-static int lh7a40x_udc_remove(struct platform_device *pdev)
-{
- struct lh7a40x_udc *dev = platform_get_drvdata(pdev);
-
- DEBUG("%s: %p\n", __func__, pdev);
-
- if (dev->driver)
- return -EBUSY;
-
- udc_disable(dev);
- remove_proc_files();
-
- free_irq(IRQ_USBINTR, dev);
-
- platform_set_drvdata(pdev, 0);
-
- the_controller = 0;
-
- return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static struct platform_driver udc_driver = {
- .probe = lh7a40x_udc_probe,
- .remove = lh7a40x_udc_remove,
- /* FIXME power management support */
- /* .suspend = ... disable UDC */
- /* .resume = ... re-enable UDC */
- .driver = {
- .name = (char *)driver_name,
- .owner = THIS_MODULE,
- },
-};
-
-static int __init udc_init(void)
-{
- DEBUG("%s: %s version %s\n", __func__, driver_name, DRIVER_VERSION);
- return platform_driver_register(&udc_driver);
-}
-
-static void __exit udc_exit(void)
-{
- platform_driver_unregister(&udc_driver);
-}
-
-module_init(udc_init);
-module_exit(udc_exit);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Mikko Lahteenmaki, Bo Henriksen");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:lh7a40x_udc");
diff --git a/drivers/usb/gadget/lh7a40x_udc.h b/drivers/usb/gadget/lh7a40x_udc.h
deleted file mode 100644
index ca861203a301..000000000000
--- a/drivers/usb/gadget/lh7a40x_udc.h
+++ /dev/null
@@ -1,259 +0,0 @@
-/*
- * linux/drivers/usb/gadget/lh7a40x_udc.h
- * Sharp LH7A40x on-chip full speed USB device controllers
- *
- * Copyright (C) 2004 Mikko Lahteenmaki, Nordic ID
- * Copyright (C) 2004 Bo Henriksen, Nordic ID
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __LH7A40X_H_
-#define __LH7A40X_H_
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/proc_fs.h>
-#include <linux/mm.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/byteorder.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/system.h>
-#include <asm/unaligned.h>
-#include <mach/hardware.h>
-
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-/*
- * Memory map
- */
-
-#define USB_FA 0x80000200 // function address register
-#define USB_PM 0x80000204 // power management register
-
-#define USB_IN_INT 0x80000208 // IN interrupt register bank (EP0-EP3)
-#define USB_OUT_INT 0x80000210 // OUT interrupt register bank (EP2)
-#define USB_INT 0x80000218 // interrupt register bank
-
-#define USB_IN_INT_EN 0x8000021C // IN interrupt enable register bank
-#define USB_OUT_INT_EN 0x80000224 // OUT interrupt enable register bank
-#define USB_INT_EN 0x8000022C // USB interrupt enable register bank
-
-#define USB_FRM_NUM1 0x80000230 // Frame number1 register
-#define USB_FRM_NUM2 0x80000234 // Frame number2 register
-#define USB_INDEX 0x80000238 // index register
-
-#define USB_IN_MAXP 0x80000240 // IN MAXP register
-#define USB_IN_CSR1 0x80000244 // IN CSR1 register/EP0 CSR register
-#define USB_EP0_CSR 0x80000244 // IN CSR1 register/EP0 CSR register
-#define USB_IN_CSR2 0x80000248 // IN CSR2 register
-#define USB_OUT_MAXP 0x8000024C // OUT MAXP register
-
-#define USB_OUT_CSR1 0x80000250 // OUT CSR1 register
-#define USB_OUT_CSR2 0x80000254 // OUT CSR2 register
-#define USB_OUT_FIFO_WC1 0x80000258 // OUT FIFO write count1 register
-#define USB_OUT_FIFO_WC2 0x8000025C // OUT FIFO write count2 register
-
-#define USB_RESET 0x8000044C // USB reset register
-
-#define USB_EP0_FIFO 0x80000280
-#define USB_EP1_FIFO 0x80000284
-#define USB_EP2_FIFO 0x80000288
-#define USB_EP3_FIFO 0x8000028c
-
-/*
- * USB reset register
- */
-#define USB_RESET_APB (1<<1) //resets USB APB control side WRITE
-#define USB_RESET_IO (1<<0) //resets USB IO side WRITE
-
-/*
- * USB function address register
- */
-#define USB_FA_ADDR_UPDATE (1<<7)
-#define USB_FA_FUNCTION_ADDR (0x7F)
-
-/*
- * Power Management register
- */
-#define PM_USB_DCP (1<<5)
-#define PM_USB_ENABLE (1<<4)
-#define PM_USB_RESET (1<<3)
-#define PM_UC_RESUME (1<<2)
-#define PM_SUSPEND_MODE (1<<1)
-#define PM_ENABLE_SUSPEND (1<<0)
-
-/*
- * IN interrupt register
- */
-#define USB_IN_INT_EP3 (1<<3)
-#define USB_IN_INT_EP1 (1<<1)
-#define USB_IN_INT_EP0 (1<<0)
-
-/*
- * OUT interrupt register
- */
-#define USB_OUT_INT_EP2 (1<<2)
-
-/*
- * USB interrupt register
- */
-#define USB_INT_RESET_INT (1<<2)
-#define USB_INT_RESUME_INT (1<<1)
-#define USB_INT_SUSPEND_INT (1<<0)
-
-/*
- * USB interrupt enable register
- */
-#define USB_INT_EN_USB_RESET_INTER (1<<2)
-#define USB_INT_EN_RESUME_INTER (1<<1)
-#define USB_INT_EN_SUSPEND_INTER (1<<0)
-
-/*
- * INCSR1 register
- */
-#define USB_IN_CSR1_CLR_DATA_TOGGLE (1<<6)
-#define USB_IN_CSR1_SENT_STALL (1<<5)
-#define USB_IN_CSR1_SEND_STALL (1<<4)
-#define USB_IN_CSR1_FIFO_FLUSH (1<<3)
-#define USB_IN_CSR1_FIFO_NOT_EMPTY (1<<1)
-#define USB_IN_CSR1_IN_PKT_RDY (1<<0)
-
-/*
- * INCSR2 register
- */
-#define USB_IN_CSR2_AUTO_SET (1<<7)
-#define USB_IN_CSR2_USB_DMA_EN (1<<4)
-
-/*
- * OUT CSR1 register
- */
-#define USB_OUT_CSR1_CLR_DATA_REG (1<<7)
-#define USB_OUT_CSR1_SENT_STALL (1<<6)
-#define USB_OUT_CSR1_SEND_STALL (1<<5)
-#define USB_OUT_CSR1_FIFO_FLUSH (1<<4)
-#define USB_OUT_CSR1_FIFO_FULL (1<<1)
-#define USB_OUT_CSR1_OUT_PKT_RDY (1<<0)
-
-/*
- * OUT CSR2 register
- */
-#define USB_OUT_CSR2_AUTO_CLR (1<<7)
-#define USB_OUT_CSR2_USB_DMA_EN (1<<4)
-
-/*
- * EP0 CSR
- */
-#define EP0_CLR_SETUP_END (1<<7) /* Clear "Setup Ends" Bit (w) */
-#define EP0_CLR_OUT (1<<6) /* Clear "Out packet ready" Bit (w) */
-#define EP0_SEND_STALL (1<<5) /* Send STALL Handshake (rw) */
-#define EP0_SETUP_END (1<<4) /* Setup Ends (r) */
-
-#define EP0_DATA_END (1<<3) /* Data end (rw) */
-#define EP0_SENT_STALL (1<<2) /* Sent Stall Handshake (r) */
-#define EP0_IN_PKT_RDY (1<<1) /* In packet ready (rw) */
-#define EP0_OUT_PKT_RDY (1<<0) /* Out packet ready (r) */
-
-/* general CSR */
-#define OUT_PKT_RDY (1<<0)
-#define IN_PKT_RDY (1<<0)
-
-/*
- * IN/OUT MAXP register
- */
-#define USB_OUT_MAXP_MAXP (0xF)
-#define USB_IN_MAXP_MAXP (0xF)
-
-// Max packet size
-//#define EP0_PACKETSIZE 0x10
-#define EP0_PACKETSIZE 0x8
-#define EP0_MAXPACKETSIZE 0x10
-
-#define UDC_MAX_ENDPOINTS 4
-
-#define WAIT_FOR_SETUP 0
-#define DATA_STATE_XMIT 1
-#define DATA_STATE_NEED_ZLP 2
-#define WAIT_FOR_OUT_STATUS 3
-#define DATA_STATE_RECV 4
-
-/* ********************************************************************************************* */
-/* IO
- */
-
-typedef enum ep_type {
- ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
-} ep_type_t;
-
-struct lh7a40x_ep {
- struct usb_ep ep;
- struct lh7a40x_udc *dev;
-
- const struct usb_endpoint_descriptor *desc;
- struct list_head queue;
- unsigned long pio_irqs;
-
- u8 stopped;
- u8 bEndpointAddress;
- u8 bmAttributes;
-
- ep_type_t ep_type;
- u32 fifo;
- u32 csr1;
- u32 csr2;
-};
-
-struct lh7a40x_request {
- struct usb_request req;
- struct list_head queue;
-};
-
-struct lh7a40x_udc {
- struct usb_gadget gadget;
- struct usb_gadget_driver *driver;
- struct device *dev;
- spinlock_t lock;
-
- int ep0state;
- struct lh7a40x_ep ep[UDC_MAX_ENDPOINTS];
-
- unsigned char usb_address;
-
- unsigned req_pending:1, req_std:1, req_config:1;
-};
-
-extern struct lh7a40x_udc *the_controller;
-
-#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN)
-#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
-#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
-
-#endif
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 759a12ff8048..b426c1e8a679 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1023,11 +1023,6 @@ MODULE_LICENSE ("GPL");
#define OMAP3_PLATFORM_DRIVER ohci_hcd_omap3_driver
#endif
-#ifdef CONFIG_ARCH_LH7A404
-#include "ohci-lh7a404.c"
-#define PLATFORM_DRIVER ohci_hcd_lh7a404_driver
-#endif
-
#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
#include "ohci-pxa27x.c"
#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver
diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c
deleted file mode 100644
index 18d39f0463ee..000000000000
--- a/drivers/usb/host/ohci-lh7a404.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- * (C) Copyright 2002 Hewlett-Packard Company
- *
- * Bus Glue for Sharp LH7A404
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- * Based on fragments of previous driver by Russell King et al.
- *
- * Modified for LH7A404 from ohci-sa1111.c
- * by Durgesh Pattamatta <pattamattad@sharpsec.com>
- *
- * This file is licenced under the GPL.
- */
-
-#include <linux/platform_device.h>
-#include <linux/signal.h>
-
-#include <mach/hardware.h>
-
-
-extern int usb_disabled(void);
-
-/*-------------------------------------------------------------------------*/
-
-static void lh7a404_start_hc(struct platform_device *dev)
-{
- printk(KERN_DEBUG "%s: starting LH7A404 OHCI USB Controller\n",
- __FILE__);
-
- /*
- * Now, carefully enable the USB clock, and take
- * the USB host controller out of reset.
- */
- CSC_PWRCNT |= CSC_PWRCNT_USBH_EN; /* Enable clock */
- udelay(1000);
- USBH_CMDSTATUS = OHCI_HCR;
-
- printk(KERN_DEBUG "%s: Clock to USB host has been enabled \n", __FILE__);
-}
-
-static void lh7a404_stop_hc(struct platform_device *dev)
-{
- printk(KERN_DEBUG "%s: stopping LH7A404 OHCI USB Controller\n",
- __FILE__);
-
- CSC_PWRCNT &= ~CSC_PWRCNT_USBH_EN; /* Disable clock */
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-/* configure so an HC device and id are always provided */
-/* always called with process context; sleeping is OK */
-
-
-/**
- * usb_hcd_lh7a404_probe - initialize LH7A404-based HCDs
- * Context: !in_interrupt()
- *
- * Allocates basic resources for this USB host controller, and
- * then invokes the start() method for the HCD associated with it
- * through the hotplug entry's driver_data.
- *
- */
-int usb_hcd_lh7a404_probe (const struct hc_driver *driver,
- struct platform_device *dev)
-{
- int retval;
- struct usb_hcd *hcd;
-
- if (dev->resource[1].flags != IORESOURCE_IRQ) {
- pr_debug("resource[1] is not IORESOURCE_IRQ");
- return -ENOMEM;
- }
-
- hcd = usb_create_hcd(driver, &dev->dev, "lh7a404");
- if (!hcd)
- return -ENOMEM;
- hcd->rsrc_start = dev->resource[0].start;
- hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1;
-
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- pr_debug("request_mem_region failed");
- retval = -EBUSY;
- goto err1;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- pr_debug("ioremap failed");
- retval = -ENOMEM;
- goto err2;
- }
-
- lh7a404_start_hc(dev);
- ohci_hcd_init(hcd_to_ohci(hcd));
-
- retval = usb_add_hcd(hcd, dev->resource[1].start, IRQF_DISABLED);
- if (retval == 0)
- return retval;
-
- lh7a404_stop_hc(dev);
- iounmap(hcd->regs);
- err2:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- err1:
- usb_put_hcd(hcd);
- return retval;
-}
-
-
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
-/**
- * usb_hcd_lh7a404_remove - shutdown processing for LH7A404-based HCDs
- * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_lh7a404_probe(), first invoking
- * the HCD's stop() method. It is always called from a thread
- * context, normally "rmmod", "apmd", or something similar.
- *
- */
-void usb_hcd_lh7a404_remove (struct usb_hcd *hcd, struct platform_device *dev)
-{
- usb_remove_hcd(hcd);
- lh7a404_stop_hc(dev);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int __devinit
-ohci_lh7a404_start (struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
- int ret;
-
- ohci_dbg (ohci, "ohci_lh7a404_start, ohci:%p", ohci);
- if ((ret = ohci_init(ohci)) < 0)
- return ret;
-
- if ((ret = ohci_run (ohci)) < 0) {
- err ("can't start %s", hcd->self.bus_name);
- ohci_stop (hcd);
- return ret;
- }
- return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ohci_lh7a404_hc_driver = {
- .description = hcd_name,
- .product_desc = "LH7A404 OHCI",
- .hcd_priv_size = sizeof(struct ohci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_USB11 | HCD_MEMORY,
-
- /*
- * basic lifecycle operations
- */
- .start = ohci_lh7a404_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
-#ifdef CONFIG_PM
- .bus_suspend = ohci_bus_suspend,
- .bus_resume = ohci_bus_resume,
-#endif
- .start_port_reset = ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_hcd_lh7a404_drv_probe(struct platform_device *pdev)
-{
- int ret;
-
- pr_debug ("In ohci_hcd_lh7a404_drv_probe");
-
- if (usb_disabled())
- return -ENODEV;
-
- ret = usb_hcd_lh7a404_probe(&ohci_lh7a404_hc_driver, pdev);
- return ret;
-}
-
-static int ohci_hcd_lh7a404_drv_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_hcd_lh7a404_remove(hcd, pdev);
- return 0;
-}
- /*TBD*/
-/*static int ohci_hcd_lh7a404_drv_suspend(struct platform_device *dev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(dev);
-
- return 0;
-}
-static int ohci_hcd_lh7a404_drv_resume(struct platform_device *dev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(dev);
-
-
- return 0;
-}
-*/
-
-static struct platform_driver ohci_hcd_lh7a404_driver = {
- .probe = ohci_hcd_lh7a404_drv_probe,
- .remove = ohci_hcd_lh7a404_drv_remove,
- .shutdown = usb_hcd_platform_shutdown,
- /*.suspend = ohci_hcd_lh7a404_drv_suspend, */
- /*.resume = ohci_hcd_lh7a404_drv_resume, */
- .driver = {
- .name = "lh7a404-ohci",
- .owner = THIS_MODULE,
- },
-};
-
-MODULE_ALIAS("platform:lh7a404-ohci");
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index 51facb985c84..04812b42fe6f 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -575,18 +575,8 @@ static inline void _ohci_writel (const struct ohci_hcd *ohci,
#endif
}
-#ifdef CONFIG_ARCH_LH7A404
-/* Marc Singer: at the time this code was written, the LH7A404
- * had a problem reading the USB host registers. This
- * implementation of the ohci_readl function performs the read
- * twice as a work-around.
- */
-#define ohci_readl(o,r) (_ohci_readl(o,r),_ohci_readl(o,r))
-#define ohci_writel(o,v,r) _ohci_writel(o,v,r)
-#else
#define ohci_readl(o,r) _ohci_readl(o,r)
#define ohci_writel(o,v,r) _ohci_writel(o,v,r)
-#endif
/*-------------------------------------------------------------------------*/
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-06 05:00:31 +0000