-/*****************************************************************
+/*
+ * MUSB OTG driver core code
+ *
* Copyright 2005 Mentor Graphics Corporation
* Copyright (C) 2005-2006 by Texas Instruments
- * Copyright (C) 2006 by Nokia Corporation
+ * Copyright (C) 2006-2007 Nokia Corporation
*
- * This file is part of the Inventra Controller Driver for Linux.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
*
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux 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.
+ * 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 The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA 02111-1307 USA
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * ANY DOWNLOAD, USE, REPRODUCTION, MODIFICATION OR DISTRIBUTION
- * OF THIS DRIVER INDICATES YOUR COMPLETE AND UNCONDITIONAL ACCEPTANCE
- * OF THOSE TERMS.THIS DRIVER IS PROVIDED "AS IS" AND MENTOR GRAPHICS
- * MAKES NO WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THIS DRIVER.
- * MENTOR GRAPHICS SPECIFICALLY DISCLAIMS ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY; FITNESS FOR A PARTICULAR PURPOSE AND
- * NON-INFRINGEMENT. MENTOR GRAPHICS DOES NOT PROVIDE SUPPORT
- * SERVICES OR UPDATES FOR THIS DRIVER, EVEN IF YOU ARE A MENTOR
- * GRAPHICS SUPPORT CUSTOMER.
- ******************************************************************/
+ */
/*
* Inventra (Multipoint) Dual-Role Controller Driver for Linux.
* the order of the tests is specified in the manual
*
* @param musb instance pointer
- * @param bIntrUSB register contents
+ * @param int_usb register contents
* @param devctl
* @param power
*/
| MUSB_INTR_VBUSERROR | MUSB_INTR_CONNECT \
| MUSB_INTR_RESET )
-static irqreturn_t musb_stage0_irq(struct musb * musb, u8 bIntrUSB,
+static irqreturn_t musb_stage0_irq(struct musb * musb, u8 int_usb,
u8 devctl, u8 power)
{
irqreturn_t handled = IRQ_NONE;
void __iomem *mbase = musb->mregs;
#endif
- DBG(3, "<== Power=%02x, DevCtl=%02x, bIntrUSB=0x%x\n", power, devctl,
- bIntrUSB);
+ DBG(3, "<== Power=%02x, DevCtl=%02x, int_usb=0x%x\n", power, devctl,
+ int_usb);
/* in host mode, the peripheral may issue remote wakeup.
* in peripheral mode, the host may resume the link.
* spurious RESUME irqs happen too, paired with SUSPEND.
*/
- if (bIntrUSB & MUSB_INTR_RESUME) {
+ if (int_usb & MUSB_INTR_RESUME) {
handled = IRQ_HANDLED;
DBG(3, "RESUME (%s)\n", otg_state_string(musb));
#ifdef CONFIG_USB_MUSB_HDRC_HCD
/* see manual for the order of the tests */
- if (bIntrUSB & MUSB_INTR_SESSREQ) {
+ if (int_usb & MUSB_INTR_SESSREQ) {
DBG(1, "SESSION_REQUEST (%s)\n", otg_state_string(musb));
/* IRQ arrives from ID pin sense or (later, if VBUS power
* a_wait_vrise_tmout triggers VBUS_ERROR transitions
*/
musb_writeb(mbase, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
- musb->ep0_stage = MGC_END0_START;
+ musb->ep0_stage = MUSB_EP0_START;
musb->xceiv.state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
musb_set_vbus(musb, 1);
handled = IRQ_HANDLED;
}
- if (bIntrUSB & MUSB_INTR_VBUSERROR) {
+ if (int_usb & MUSB_INTR_VBUSERROR) {
int ignore = 0;
/* During connection as an A-Device, we may see a short
handled = IRQ_HANDLED;
}
- if (bIntrUSB & MUSB_INTR_CONNECT) {
+ if (int_usb & MUSB_INTR_CONNECT) {
struct usb_hcd *hcd = musb_to_hcd(musb);
handled = IRQ_HANDLED;
musb->is_active = 1;
set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
- musb->ep0_stage = MGC_END0_START;
+ musb->ep0_stage = MUSB_EP0_START;
#ifdef CONFIG_USB_MUSB_OTG
/* flush endpoints when transitioning from Device Mode */
if (is_peripheral_active(musb)) {
// REVISIT HNP; just force disconnect
}
- musb->delay_port_power_off = FALSE;
- musb_writew(mbase, MUSB_INTRTXE, musb->wEndMask);
- musb_writew(mbase, MUSB_INTRRXE, musb->wEndMask & 0xfffe);
+ musb_writew(mbase, MUSB_INTRTXE, musb->epmask);
+ musb_writew(mbase, MUSB_INTRRXE, musb->epmask & 0xfffe);
musb_writeb(mbase, MUSB_INTRUSBE, 0xf7);
#endif
musb->port1_status &= ~(USB_PORT_STAT_LOW_SPEED
/* mentor saves a bit: bus reset and babble share the same irq.
* only host sees babble; only peripheral sees bus reset.
*/
- if (bIntrUSB & MUSB_INTR_RESET) {
+ if (int_usb & MUSB_INTR_RESET) {
+#ifdef CONFIG_USB_MUSB_HDRC_HCD
if (devctl & MUSB_DEVCTL_HM) {
/*
* Looks like non-HS BABBLE can be ignored, but
ERR("Stopping host session because of babble\n");
musb_writeb(mbase, MUSB_DEVCTL, 0);
}
- } else {
+ } else
+#endif /* CONFIG_USB_MUSB_HDRC_HCD */
+ {
DBG(1, "BUS RESET\n");
musb_g_reset(musb);
* the order of the tests is specified in the manual
*
* @param musb instance pointer
- * @param bIntrUSB register contents
+ * @param int_usb register contents
* @param devctl
* @param power
*/
-static irqreturn_t musb_stage2_irq(struct musb * musb, u8 bIntrUSB,
+static irqreturn_t musb_stage2_irq(struct musb * musb, u8 int_usb,
u8 devctl, u8 power)
{
irqreturn_t handled = IRQ_NONE;
* endpoints, relies on TX/RX interval registers, and isn't claimed
* to support ISO transfers yet.
*/
- if (bIntrUSB & MUSB_INTR_SOF) {
+ if (int_usb & MUSB_INTR_SOF) {
void __iomem *mbase = musb->mregs;
struct musb_hw_ep *ep;
u8 epnum;
- u16 wFrame;
+ u16 frame;
DBG(6, "START_OF_FRAME\n");
handled = IRQ_HANDLED;
/* start any periodic Tx transfers waiting for current frame */
- wFrame = musb_readw(mbase, MUSB_FRAME);
+ frame = musb_readw(mbase, MUSB_FRAME);
ep = musb->endpoints;
for (epnum = 1; (epnum < musb->nr_endpoints)
- && (musb->wEndMask >= (1 << epnum));
+ && (musb->epmask >= (1 << epnum));
epnum++, ep++) {
// FIXME handle framecounter wraps (12 bits)
// eliminate duplicated StartUrb logic
- if (ep->dwWaitFrame >= wFrame) {
+ if (ep->dwWaitFrame >= frame) {
ep->dwWaitFrame = 0;
printk("SOF --> periodic TX%s on %d\n",
ep->tx_channel ? " DMA" : "",
}
#endif
- if ((bIntrUSB & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) {
+ if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) {
DBG(1, "DISCONNECT (%s) as %s, devctl %02x\n",
otg_state_string(musb),
MUSB_MODE(musb), devctl);
schedule_work(&musb->irq_work);
}
- if (bIntrUSB & MUSB_INTR_SUSPEND) {
+ if (int_usb & MUSB_INTR_SUSPEND) {
DBG(1, "SUSPEND (%s) devctl %02x power %02x\n",
otg_state_string(musb), devctl, power);
handled = IRQ_HANDLED;
switch (musb->xceiv.state) {
+#ifdef CONFIG_USB_MUSB_OTG
case OTG_STATE_A_PERIPHERAL:
musb_hnp_stop(musb);
break;
+#endif
case OTG_STATE_B_PERIPHERAL:
musb_g_suspend(musb);
musb->is_active = is_otg_enabled(musb)
DBG(2, "<== devctl %02x\n", devctl);
/* Set INT enable registers, enable interrupts */
- musb_writew(regs, MUSB_INTRTXE, musb->wEndMask);
- musb_writew(regs, MUSB_INTRRXE, musb->wEndMask & 0xfffe);
+ musb_writew(regs, MUSB_INTRTXE, musb->epmask);
+ musb_writew(regs, MUSB_INTRRXE, musb->epmask & 0xfffe);
musb_writeb(regs, MUSB_INTRUSBE, 0xf7);
musb_writeb(regs, MUSB_TESTMODE, 0);
/* NOTE rx and tx endpoint irqs aren't managed separately,
* which happens to be ok
*/
- musb->wEndMask |= (1 << hw_ep->epnum);
+ musb->epmask |= (1 << hw_ep->epnum);
return offset + (maxpacket << ((c_size & MUSB_FIFOSZ_DPB) ? 1 : 0));
}
break;
}
musb->nr_endpoints++;
- musb->wEndMask |= (1 << epnum);
+ musb->epmask |= (1 << epnum);
hw_ep->max_packet_sz_tx = 1 << (reg & 0x0f);
/* Initialize MUSB (M)HDRC part of the USB hardware subsystem;
* configure endpoints, or take their config from silicon
*/
-static int __init musb_core_init(u16 wType, struct musb *musb)
+static int __init musb_core_init(u16 musb_type, struct musb *musb)
{
#ifdef MUSB_AHB_ID
- u32 dwData;
+ u32 data;
#endif
u8 reg;
char *type;
- u16 wRelease, wRelMajor, wRelMinor;
+ u16 hwvers, rev_major, rev_minor;
char aInfo[78], aRevision[32], aDate[12];
void __iomem *mbase = musb->mregs;
int status = 0;
musb_driver_name, reg, aInfo);
#ifdef MUSB_AHB_ID
- dwData = musb_readl(mbase, 0x404);
- sprintf(aDate, "%04d-%02x-%02x", (dwData & 0xffff),
- (dwData >> 16) & 0xff, (dwData >> 24) & 0xff);
+ data = musb_readl(mbase, 0x404);
+ sprintf(aDate, "%04d-%02x-%02x", (data & 0xffff),
+ (data >> 16) & 0xff, (data >> 24) & 0xff);
/* FIXME ID2 and ID3 are unused */
- dwData = musb_readl(mbase, 0x408);
- printk("ID2=%lx\n", (long unsigned)dwData);
- dwData = musb_readl(mbase, 0x40c);
- printk("ID3=%lx\n", (long unsigned)dwData);
+ data = musb_readl(mbase, 0x408);
+ printk("ID2=%lx\n", (long unsigned)data);
+ data = musb_readl(mbase, 0x40c);
+ printk("ID3=%lx\n", (long unsigned)data);
reg = musb_readb(mbase, 0x400);
- wType = ('M' == reg) ? MUSB_CONTROLLER_MHDRC : MUSB_CONTROLLER_HDRC;
+ musb_type = ('M' == reg) ? MUSB_CONTROLLER_MHDRC : MUSB_CONTROLLER_HDRC;
#else
aDate[0] = 0;
#endif
- if (MUSB_CONTROLLER_MHDRC == wType) {
+ if (MUSB_CONTROLLER_MHDRC == musb_type) {
musb->is_multipoint = 1;
type = "M";
} else {
}
/* log release info */
- wRelease = musb_readw(mbase, MUSB_HWVERS);
- wRelMajor = (wRelease >> 10) & 0x1f;
- wRelMinor = wRelease & 0x3ff;
- snprintf(aRevision, 32, "%d.%d%s", wRelMajor,
- wRelMinor, (wRelease & 0x8000) ? "RC" : "");
+ hwvers = musb_readw(mbase, MUSB_HWVERS);
+ rev_major = (hwvers >> 10) & 0x1f;
+ rev_minor = hwvers & 0x3ff;
+ snprintf(aRevision, 32, "%d.%d%s", rev_major,
+ rev_minor, (hwvers & 0x8000) ? "RC" : "");
printk(KERN_DEBUG "%s: %sHDRC RTL version %s %s\n",
musb_driver_name, type, aRevision, aDate);
/* configure ep0 */
- musb->endpoints[0].max_packet_sz_tx = MGC_END0_FIFOSIZE;
- musb->endpoints[0].max_packet_sz_rx = MGC_END0_FIFOSIZE;
+ musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE;
+ musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE;
/* discover endpoint configuration */
musb->nr_endpoints = 1;
- musb->wEndMask = 1;
+ musb->epmask = 1;
if (reg & MUSB_CONFIGDATA_DYNFIFO) {
if (can_dynfifo())
hw_ep->conf = mbase + 0x400 + (((i - 1) & 0xf) << 2);
#endif
- hw_ep->regs = MGC_END_OFFSET(i, 0) + mbase;
+ hw_ep->regs = MUSB_EP_OFFSET(i, 0) + mbase;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
- hw_ep->target_regs = MGC_BUSCTL_OFFSET(i, 0) + mbase;
+ hw_ep->target_regs = MUSB_BUSCTL_OFFSET(i, 0) + mbase;
hw_ep->rx_reinit = 1;
hw_ep->tx_reinit = 1;
#endif
module_param(use_dma, bool, 0);
MODULE_PARM_DESC(use_dma, "enable/disable use of DMA");
-void musb_dma_completion(struct musb *musb, u8 epnum, u8 bTransmit)
+void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
{
u8 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
#endif
} else {
/* endpoints 1..15 */
- if (bTransmit) {
+ if (transmit) {
if (devctl & MUSB_DEVCTL_HM) {
if (is_host_capable())
musb_host_tx(musb, epnum);
const char *buf, size_t n)
{
struct musb *musb=dev_to_musb(dev);
- unsigned long flags;
unsigned short srp;
if (sscanf(buf, "%hu", &srp) != 1
return -EINVAL;
}
- spin_lock_irqsave(&musb->lock, flags);
if (srp == 1)
musb_g_wakeup(musb);
- spin_unlock_irqrestore(&musb->lock, flags);
return n;
}
projects / linux-2.6-omap-h63xx.git / blobdiff