* Marek Szyprowski <m.szyprowski@samsung.com>
* Lukasz Majewski <l.majewski@samsumg.com>
*
- * 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
- *
+ * SPDX-License-Identifier: GPL-2.0+
*/
-
+#undef DEBUG
#include <common.h>
#include <asm/errno.h>
#include <linux/list.h>
#include <asm/io.h>
#include <asm/mach-types.h>
-#include <asm/arch/gpio.h>
#include "regs-otg.h"
-#include <usb/s3c_udc.h>
#include <usb/lin_gadget_compat.h>
/***********************************************************/
#define OTG_DMA_MODE 1
-#undef DEBUG_S3C_UDC_SETUP
-#undef DEBUG_S3C_UDC_EP0
-#undef DEBUG_S3C_UDC_ISR
-#undef DEBUG_S3C_UDC_OUT_EP
-#undef DEBUG_S3C_UDC_IN_EP
-#undef DEBUG_S3C_UDC
-
-/* #define DEBUG_S3C_UDC_SETUP */
-/* #define DEBUG_S3C_UDC_EP0 */
-/* #define DEBUG_S3C_UDC_ISR */
-/* #define DEBUG_S3C_UDC_OUT_EP */
-/* #define DEBUG_S3C_UDC_IN_EP */
-/* #define DEBUG_S3C_UDC */
+#define DEBUG_SETUP 0
+#define DEBUG_EP0 0
+#define DEBUG_ISR 0
+#define DEBUG_OUT_EP 0
+#define DEBUG_IN_EP 0
#include <usb/s3c_udc.h>
#define EP0_CON 0
#define EP_MASK 0xF
-#if defined(DEBUG_S3C_UDC_SETUP) || defined(DEBUG_S3C_UDC_ISR) \
- || defined(DEBUG_S3C_UDC_OUT_EP)
static char *state_names[] = {
"WAIT_FOR_SETUP",
"DATA_STATE_XMIT",
"WAIT_FOR_IN_COMPLETE",
"WAIT_FOR_NULL_COMPLETE",
};
-#endif
#define DRIVER_DESC "S3C HS USB OTG Device Driver, (c) Samsung Electronics"
#define DRIVER_VERSION "15 March 2009"
struct usb_gadget_driver *driver);
static int udc_enable(struct s3c_udc *dev);
static void udc_set_address(struct s3c_udc *dev, unsigned char address);
-static void reconfig_usbd(void);
+static void reconfig_usbd(struct s3c_udc *dev);
static void set_max_pktsize(struct s3c_udc *dev, enum usb_device_speed speed);
static void nuke(struct s3c_ep *ep, int status);
static int s3c_udc_set_halt(struct usb_ep *_ep, int value);
static void s3c_udc_set_nak(struct s3c_ep *ep);
+void set_udc_gadget_private_data(void *p)
+{
+ debug_cond(DEBUG_SETUP != 0,
+ "%s: the_controller: 0x%p, p: 0x%p\n", __func__,
+ the_controller, p);
+ the_controller->gadget.dev.device_data = p;
+}
+
+void *get_udc_gadget_private_data(struct usb_gadget *gadget)
+{
+ return gadget->dev.device_data;
+}
+
static struct usb_ep_ops s3c_ep_ops = {
.enable = s3c_ep_enable,
.disable = s3c_ep_disable,
void __iomem *regs_otg;
struct s3c_usbotg_reg *reg;
-struct s3c_usbotg_phy *phy;
-static unsigned int usb_phy_ctrl;
-void otg_phy_init(struct s3c_udc *dev)
+bool dfu_usb_get_reset(void)
{
- dev->pdata->phy_control(1);
-
- /*USB PHY0 Enable */
- printf("USB PHY0 Enable\n");
-
- /* Enable PHY */
- writel(readl(usb_phy_ctrl) | USB_PHY_CTRL_EN0, usb_phy_ctrl);
-
- if (dev->pdata->usb_flags == PHY0_SLEEP) /* C210 Universal */
- writel((readl(&phy->phypwr)
- &~(PHY_0_SLEEP | OTG_DISABLE_0 | ANALOG_PWRDOWN)
- &~FORCE_SUSPEND_0), &phy->phypwr);
- else /* C110 GONI */
- writel((readl(&phy->phypwr) &~(OTG_DISABLE_0 | ANALOG_PWRDOWN)
- &~FORCE_SUSPEND_0), &phy->phypwr);
-
- writel((readl(&phy->phyclk) &~(ID_PULLUP0 | COMMON_ON_N0)) |
- CLK_SEL_24MHZ, &phy->phyclk); /* PLL 24Mhz */
-
- writel((readl(&phy->rstcon) &~(LINK_SW_RST | PHYLNK_SW_RST))
- | PHY_SW_RST0, &phy->rstcon);
- udelay(10);
- writel(readl(&phy->rstcon)
- &~(PHY_SW_RST0 | LINK_SW_RST | PHYLNK_SW_RST), &phy->rstcon);
- udelay(10);
+ return !!(readl(®->gintsts) & INT_RESET);
}
-void otg_phy_off(struct s3c_udc *dev)
-{
- /* reset controller just in case */
- writel(PHY_SW_RST0, &phy->rstcon);
- udelay(20);
- writel(readl(&phy->phypwr) &~PHY_SW_RST0, &phy->rstcon);
- udelay(20);
-
- writel(readl(&phy->phypwr) | OTG_DISABLE_0 | ANALOG_PWRDOWN
- | FORCE_SUSPEND_0, &phy->phypwr);
-
- writel(readl(usb_phy_ctrl) &~USB_PHY_CTRL_EN0, usb_phy_ctrl);
-
- writel((readl(&phy->phyclk) & ~(ID_PULLUP0 | COMMON_ON_N0)),
- &phy->phyclk);
-
- udelay(10000);
-
- dev->pdata->phy_control(0);
-}
+__weak void otg_phy_init(struct s3c_udc *dev) {}
+__weak void otg_phy_off(struct s3c_udc *dev) {}
/***********************************************************/
*/
static void udc_disable(struct s3c_udc *dev)
{
- DEBUG_SETUP("%s: %p\n", __func__, dev);
+ debug_cond(DEBUG_SETUP != 0, "%s: %p\n", __func__, dev);
udc_set_address(dev, 0);
{
unsigned int i;
- DEBUG_SETUP("%s: %p\n", __func__, dev);
+ debug_cond(DEBUG_SETUP != 0, "%s: %p\n", __func__, dev);
/* device/ep0 records init */
INIT_LIST_HEAD(&dev->gadget.ep_list);
*/
static int udc_enable(struct s3c_udc *dev)
{
- DEBUG_SETUP("%s: %p\n", __func__, dev);
+ debug_cond(DEBUG_SETUP != 0, "%s: %p\n", __func__, dev);
otg_phy_init(dev);
- reconfig_usbd();
+ reconfig_usbd(dev);
- DEBUG_SETUP("S3C USB 2.0 OTG Controller Core Initialized : 0x%x\n",
+ debug_cond(DEBUG_SETUP != 0,
+ "S3C USB 2.0 OTG Controller Core Initialized : 0x%x\n",
readl(®->gintmsk));
dev->gadget.speed = USB_SPEED_UNKNOWN;
{
struct s3c_udc *dev = the_controller;
int retval = 0;
- unsigned long flags;
+ unsigned long flags = 0;
- DEBUG_SETUP("%s: %s\n", __func__, "no name");
+ debug_cond(DEBUG_SETUP != 0, "%s: %s\n", __func__, "no name");
if (!driver
|| (driver->speed != USB_SPEED_FULL
retval = driver->bind(&dev->gadget);
if (retval) {
- DEBUG_SETUP("%s: bind to driver --> error %d\n",
+ debug_cond(DEBUG_SETUP != 0,
+ "%s: bind to driver --> error %d\n",
dev->gadget.name, retval);
dev->driver = 0;
return retval;
enable_irq(IRQ_OTG);
- DEBUG_SETUP("Registered gadget driver %s\n", dev->gadget.name);
+ debug_cond(DEBUG_SETUP != 0,
+ "Registered gadget driver %s\n", dev->gadget.name);
udc_enable(dev);
return 0;
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
struct s3c_udc *dev = the_controller;
- unsigned long flags;
+ unsigned long flags = 0;
if (!dev)
return -ENODEV;
{
unsigned int stopped = ep->stopped;
- DEBUG("%s: %s %p, req = %p, stopped = %d\n",
+ debug("%s: %s %p, req = %p, stopped = %d\n",
__func__, ep->ep.name, ep, &req->req, stopped);
list_del_init(&req->queue);
status = req->req.status;
if (status && status != -ESHUTDOWN) {
- DEBUG("complete %s req %p stat %d len %u/%u\n",
+ 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;
-#ifdef DEBUG_S3C_UDC
+#ifdef DEBUG
printf("calling complete callback\n");
{
int i, len = req->req.length;
req->req.complete(&ep->ep, &req->req);
spin_lock(&ep->dev->lock);
- DEBUG("callback completed\n");
+ debug("callback completed\n");
ep->stopped = stopped;
}
{
struct s3c_request *req;
- DEBUG("%s: %s %p\n", __func__, ep->ep.name, ep);
+ debug("%s: %s %p\n", __func__, ep->ep.name, ep);
/* called with irqs blocked */
while (!list_empty(&ep->queue)) {
udc_reinit(dev);
}
-static void reconfig_usbd(void)
+static void reconfig_usbd(struct s3c_udc *dev)
{
/* 2. Soft-reset OTG Core and then unreset again. */
int i;
unsigned int uTemp = writel(CORE_SOFT_RESET, ®->grstctl);
+ uint32_t dflt_gusbcfg;
- DEBUG(2, "Reseting OTG controller\n");
+ debug("Reseting OTG controller\n");
- writel(0<<15 /* PHY Low Power Clock sel*/
+ dflt_gusbcfg =
+ 0<<15 /* PHY Low Power Clock sel*/
|1<<14 /* Non-Periodic TxFIFO Rewind Enable*/
|0x5<<10 /* Turnaround time*/
|0<<9 | 0<<8 /* [0:HNP disable,1:HNP enable][ 0:SRP disable*/
|0<<6 /* 0: high speed utmi+, 1: full speed serial*/
|0<<4 /* 0: utmi+, 1:ulpi*/
|1<<3 /* phy i/f 0:8bit, 1:16bit*/
- |0x7<<0, /* HS/FS Timeout**/
- ®->gusbcfg);
+ |0x7<<0; /* HS/FS Timeout**/
+
+ if (dev->pdata->usb_gusbcfg)
+ dflt_gusbcfg = dev->pdata->usb_gusbcfg;
+
+ writel(dflt_gusbcfg, ®->gusbcfg);
/* 3. Put the OTG device core in the disconnected state.*/
uTemp = readl(®->dctl);
/* Flush the RX FIFO */
writel(RX_FIFO_FLUSH, ®->grstctl);
while (readl(®->grstctl) & RX_FIFO_FLUSH)
- DEBUG("%s: waiting for S3C_UDC_OTG_GRSTCTL\n", __func__);
+ debug("%s: waiting for S3C_UDC_OTG_GRSTCTL\n", __func__);
/* Flush all the Tx FIFO's */
writel(TX_FIFO_FLUSH_ALL, ®->grstctl);
writel(TX_FIFO_FLUSH_ALL | TX_FIFO_FLUSH, ®->grstctl);
while (readl(®->grstctl) & TX_FIFO_FLUSH)
- DEBUG("%s: waiting for S3C_UDC_OTG_GRSTCTL\n", __func__);
+ debug("%s: waiting for S3C_UDC_OTG_GRSTCTL\n", __func__);
/* 13. Clear NAK bit of EP0, EP1, EP2*/
/* For Slave mode*/
{
struct s3c_ep *ep;
struct s3c_udc *dev;
- unsigned long flags;
+ unsigned long flags = 0;
- DEBUG("%s: %p\n", __func__, _ep);
+ debug("%s: %p\n", __func__, _ep);
ep = container_of(_ep, struct s3c_ep, ep);
if (!_ep || !desc || ep->desc || _ep->name == ep0name
|| ep_maxpacket(ep) <
le16_to_cpu(get_unaligned(&desc->wMaxPacketSize))) {
- DEBUG("%s: bad ep or descriptor\n", __func__);
+ debug("%s: bad ep or descriptor\n", __func__);
return -EINVAL;
}
&& ep->bmAttributes != USB_ENDPOINT_XFER_BULK
&& desc->bmAttributes != USB_ENDPOINT_XFER_INT) {
- DEBUG("%s: %s type mismatch\n", __func__, _ep->name);
+ debug("%s: %s type mismatch\n", __func__, _ep->name);
return -EINVAL;
}
&& le16_to_cpu(get_unaligned(&desc->wMaxPacketSize)) !=
ep_maxpacket(ep)) || !get_unaligned(&desc->wMaxPacketSize)) {
- DEBUG("%s: bad %s maxpacket\n", __func__, _ep->name);
+ 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__);
+ debug("%s: bogus device state\n", __func__);
return -ESHUTDOWN;
}
s3c_udc_ep_activate(ep);
spin_unlock_irqrestore(&ep->dev->lock, flags);
- DEBUG("%s: enabled %s, stopped = %d, maxpacket = %d\n",
+ debug("%s: enabled %s, stopped = %d, maxpacket = %d\n",
__func__, _ep->name, ep->stopped, ep->ep.maxpacket);
return 0;
}
static int s3c_ep_disable(struct usb_ep *_ep)
{
struct s3c_ep *ep;
- unsigned long flags;
+ unsigned long flags = 0;
- DEBUG("%s: %p\n", __func__, _ep);
+ debug("%s: %p\n", __func__, _ep);
ep = container_of(_ep, struct s3c_ep, ep);
if (!_ep || !ep->desc) {
- DEBUG("%s: %s not enabled\n", __func__,
+ debug("%s: %s not enabled\n", __func__,
_ep ? ep->ep.name : NULL);
return -EINVAL;
}
spin_unlock_irqrestore(&ep->dev->lock, flags);
- DEBUG("%s: disabled %s\n", __func__, _ep->name);
+ debug("%s: disabled %s\n", __func__, _ep->name);
return 0;
}
{
struct s3c_request *req;
- DEBUG("%s: %s %p\n", __func__, ep->name, ep);
+ debug("%s: %s %p\n", __func__, ep->name, ep);
- req = kmalloc(sizeof *req, gfp_flags);
+ req = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*req));
if (!req)
return 0;
{
struct s3c_request *req;
- DEBUG("%s: %p\n", __func__, ep);
+ debug("%s: %p\n", __func__, ep);
req = container_of(_req, struct s3c_request, req);
WARN_ON(!list_empty(&req->queue));
{
struct s3c_ep *ep;
struct s3c_request *req;
- unsigned long flags;
+ unsigned long flags = 0;
- DEBUG("%s: %p\n", __func__, _ep);
+ debug("%s: %p\n", __func__, _ep);
ep = container_of(_ep, struct s3c_ep, ep);
if (!_ep || ep->ep.name == ep0name)
ep = container_of(_ep, struct s3c_ep, ep);
if (!_ep) {
- DEBUG("%s: bad ep\n", __func__);
+ debug("%s: bad ep\n", __func__);
return -ENODEV;
}
- DEBUG("%s: %d\n", __func__, ep_index(ep));
+ debug("%s: %d\n", __func__, ep_index(ep));
/* LPD can't report unclaimed bytes from IN fifos */
if (ep_is_in(ep))
ep = container_of(_ep, struct s3c_ep, ep);
if (unlikely(!_ep || (!ep->desc && ep->ep.name != ep0name))) {
- DEBUG("%s: bad ep\n", __func__);
+ debug("%s: bad ep\n", __func__);
return;
}
- DEBUG("%s: %d\n", __func__, ep_index(ep));
+ debug("%s: %d\n", __func__, ep_index(ep));
}
static const struct usb_gadget_ops s3c_udc_ops = {
int s3c_udc_probe(struct s3c_plat_otg_data *pdata)
{
struct s3c_udc *dev = &memory;
- int retval = 0, i;
+ int retval = 0;
- DEBUG("%s: %p\n", __func__, pdata);
+ debug("%s: %p\n", __func__, pdata);
dev->pdata = pdata;
- phy = (struct s3c_usbotg_phy *)pdata->regs_phy;
reg = (struct s3c_usbotg_reg *)pdata->regs_otg;
- usb_phy_ctrl = pdata->usb_phy_ctrl;
/* regs_otg = (void *)pdata->regs_otg; */
the_controller = dev;
- for (i = 0; i < S3C_MAX_ENDPOINTS+1; i++) {
- dev->dma_buf[i] = kmalloc(DMA_BUFFER_SIZE, GFP_KERNEL);
- dev->dma_addr[i] = (dma_addr_t) dev->dma_buf[i];
- invalidate_dcache_range((unsigned long) dev->dma_buf[i],
- (unsigned long) (dev->dma_buf[i]
- + DMA_BUFFER_SIZE));
+ usb_ctrl = memalign(CONFIG_SYS_CACHELINE_SIZE,
+ ROUND(sizeof(struct usb_ctrlrequest),
+ CONFIG_SYS_CACHELINE_SIZE));
+ if (!usb_ctrl) {
+ error("No memory available for UDC!\n");
+ return -ENOMEM;
}
- usb_ctrl = dev->dma_buf[0];
- usb_ctrl_dma_addr = dev->dma_addr[0];
+
+ usb_ctrl_dma_addr = (dma_addr_t) usb_ctrl;
udc_reinit(dev);
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