+++ /dev/null
---- kernel-power-2.6.28.orig/arch/arm/mach-omap2/board-rx51.c
-+++ kernel-power-2.6.28/arch/arm/mach-omap2/board-rx51.c
-@@ -108,6 +108,7 @@
-
- static int rx51_xceiv_reset(void)
- {
-+ printk(KERN_ERR "rx51_xceiv_reset\n");
- /* make sure the transceiver is awake */
- msleep(15);
- /* only reset powered transceivers */
-@@ -125,6 +126,7 @@
- {
- unsigned long timeout;
-
-+ printk(KERN_ERR "rx51_xceiv_power %d\n",power);
- if (!power) {
- /* Let musb go stdby before powering down the transceiver */
- timeout = jiffies + msecs_to_jiffies(100);
---- kernel-power-2.6.28.orig/drivers/usb/musb/isp1704.h
-+++ kernel-power-2.6.28/drivers/usb/musb/isp1704.h
-@@ -41,6 +41,7 @@
- #define ISP1704_OTG_CTRL 0x0a
- #define ISP1704_USB_INTRISE 0x0d
- #define ISP1704_USB_INTFALL 0x10
-+#define ISP1704_USB_INTSTAT 0x13
- #define ISP1704_DEBUG 0x15
- #define ISP1704_SCRATCH 0x16
- #define ISP1704_PWR_CTRL 0x3d
---- kernel-power-2.6.28.orig/drivers/usb/musb/musb_core.c
-+++ kernel-power-2.6.28/drivers/usb/musb/musb_core.c
-@@ -142,6 +142,59 @@
- MODULE_LICENSE("GPL");
- MODULE_ALIAS("platform:" MUSB_DRIVER_NAME);
-
-+
-+
-+inline void mbusywait(int ms)
-+{
-+ unsigned long end_time = jiffies + msecs_to_jiffies(ms);
-+ while(time_before(jiffies,end_time))
-+ cpu_relax();
-+
-+}
-+
-+void musb_force_term(void __iomem *addr, enum musb_term term)
-+{
-+ u8 r;
-+
-+
-+ r = musb_ulpi_readb(addr, ISP1704_OTG_CTRL);
-+ r |= ISP1704_OTG_CTRL_DP_PULLDOWN | ISP1704_OTG_CTRL_DM_PULLDOWN;
-+ musb_ulpi_writeb(addr, ISP1704_OTG_CTRL, r);
-+
-+ r = musb_ulpi_readb(addr, ISP1704_FUNC_CTRL);
-+
-+ switch(term) {
-+
-+ case MUSB_TERM_HOST_HIGHSPEED:
-+ r &= ~ISP1704_FUNC_CTRL_XCVRSELECT;
-+ r &= ~ISP1704_FUNC_CTRL_TERMSELECT;
-+ r &= ~ISP1704_FUNC_CTRL_OPMODE;
-+ break;
-+
-+ case MUSB_TERM_HOST_FULLSPEED:
-+ r |= 1 << ISP1704_FUNC_CTRL_XCVRSELECT_SHIFT;
-+ r |= ISP1704_FUNC_CTRL_TERMSELECT;
-+ r &= ~ISP1704_FUNC_CTRL_OPMODE;
-+ break;
-+
-+ case MUSB_TERM_HOST_LOWSPEED:
-+ r |= 2 << ISP1704_FUNC_CTRL_XCVRSELECT_SHIFT;
-+ r |= ISP1704_FUNC_CTRL_TERMSELECT;
-+ r &= ~ISP1704_FUNC_CTRL_OPMODE;
-+ break;
-+
-+ default:
-+ ERR("Unknown musb termination\n");
-+ return;
-+ }
-+
-+ r |= ISP1704_OTG_CTRL_IDPULLUP;
-+ musb_ulpi_writeb(addr, ISP1704_FUNC_CTRL, r);
-+
-+}
-+
-+
-+
- static inline int musb_verify_charger(void __iomem *addr)
- {
- u8 r, ret = 0;
-@@ -220,6 +273,8 @@
-
- u8 vdat = 0;
- u8 r;
-+ u8 testmode;
-+ testmode = musb_readb(musb->mregs,MUSB_TESTMODE);
-
- msleep(5);
-
-@@ -297,7 +352,7 @@
- break;
- }
-
-- if (vdat) {
-+ if (vdat && !(testmode & MUSB_TEST_FORCE_HOST)) {
- /* REVISIT: This code works only with dedicated chargers!
- * When support for HOST/HUB chargers is added, don't
- * forget this.
-@@ -349,7 +404,7 @@
-
- prefetch((u8 *)src);
-
-- DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
-+ DBG(6, "%cX ep%d fifo %p count %d buf %p\n",
- 'T', hw_ep->epnum, fifo, len, src);
-
- /* we can't assume unaligned reads work */
-@@ -387,7 +442,7 @@
- {
- void __iomem *fifo = hw_ep->fifo;
-
-- DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
-+ DBG(6, "%cX ep%d fifo %p count %d buf %p\n",
- 'R', hw_ep->epnum, fifo, len, dst);
-
- /* we can't assume unaligned writes work */
-@@ -490,7 +545,6 @@
- {
- struct musb *musb = (struct musb *)data;
- unsigned long flags;
--
- spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
- case OTG_STATE_B_WAIT_ACON:
-@@ -572,10 +626,19 @@
- static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
- u8 devctl, u8 power)
- {
-+ u8 testmode;
- irqreturn_t handled = IRQ_NONE;
- void __iomem *mbase = musb->mregs;
- u8 r;
-
-+ testmode = musb_readb(mbase,MUSB_TESTMODE);
-+ if(testmode & MUSB_TEST_FORCE_HOST) {
-+ if(int_usb & MUSB_INTR_SESSREQ) {
-+ DBG(1,"Piggybacking CONNECT on SESS REQ\n");
-+ musb->int_usb |= MUSB_INTR_CONNECT;
-+ }
-+ }
-+
- DBG(3, "<== Power=%02x, DevCtl=%02x, int_usb=0x%x\n", power, devctl,
- int_usb);
-
-@@ -630,6 +693,8 @@
- } else {
- switch (musb->xceiv->state) {
- #ifdef CONFIG_USB_MUSB_HDRC_HCD
-+ case OTG_STATE_A_WAIT_BCON:
-+ case OTG_STATE_A_HOST:
- case OTG_STATE_A_SUSPEND:
- /* possibly DISCONNECT is upcoming */
- musb->xceiv->state = OTG_STATE_A_HOST;
-@@ -678,7 +743,7 @@
- * be discarded silently.
- */
- if ((devctl & MUSB_DEVCTL_VBUS)
-- && !(devctl & MUSB_DEVCTL_BDEVICE)) {
-+ && host_mode(musb->mregs)) {
- musb_writeb(mbase, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
- musb->ep0_stage = MUSB_EP0_START;
- musb->xceiv->state = OTG_STATE_A_IDLE;
-@@ -796,9 +861,15 @@
- + msecs_to_jiffies(musb->a_wait_bcon));
- break;
- case OTG_STATE_A_HOST:
-+ if(testmode & MUSB_TEST_FORCE_HOST) {
-+ // musb->int_usb |= MUSB_INTR_RESUME;
-+ break;
-+ }
-+
- musb->xceiv->state = OTG_STATE_A_SUSPEND;
- musb->is_active = is_otg_enabled(musb)
- && musb->xceiv->host->b_hnp_enable;
-+
- break;
- case OTG_STATE_B_HOST:
- /* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
-@@ -818,6 +889,7 @@
- musb->is_active = 1;
- set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
-
-+
- musb->ep0_stage = MUSB_EP0_START;
-
- #ifdef CONFIG_USB_MUSB_OTG
-@@ -836,9 +908,65 @@
- musb->port1_status |= USB_PORT_STAT_CONNECTION
- |(USB_PORT_STAT_C_CONNECTION << 16);
-
-- /* high vs full speed is just a guess until after reset */
-- if (devctl & MUSB_DEVCTL_LSDEV)
-- musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
-+ if (testmode & MUSB_TEST_FORCE_HOST) {
-+ u8 r,reg;
-+ void __iomem *mbase = musb->mregs;
-+
-+ musb_force_term(musb->mregs,MUSB_TERM_HOST_HIGHSPEED);
-+
-+ r = musb_ulpi_readb(mbase, ISP1704_DEBUG);
-+ DBG(1,"Linestate %x\n",r);
-+ switch(r) {
-+ case 2:
-+ musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg &= ~MUSB_TEST_FORCE_FS;
-+ reg &= ~MUSB_TEST_FORCE_HS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg &= ~MUSB_POWER_HSENAB;
-+ musb_writeb(mbase, MUSB_POWER, reg);
-+
-+ musb_force_term(musb->mregs,MUSB_TERM_HOST_LOWSPEED);
-+ break;
-+ case 1:
-+ /*High or full speed*/
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ if(reg & MUSB_TEST_FORCE_HS) {
-+ /*High speed*/
-+ reg &= ~MUSB_TEST_FORCE_FS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg |= MUSB_POWER_HSENAB;
-+ musb_writeb(mbase, MUSB_POWER, reg);
-+ } else {
-+ /*Full speed*/
-+ reg |= MUSB_TEST_FORCE_FS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg &= ~MUSB_POWER_HSENAB;
-+ musb_writeb(mbase, MUSB_POWER, reg);
-+ }
-+
-+ musb_force_term(mbase,MUSB_TERM_HOST_FULLSPEED);
-+
-+ break;
-+ case 0:
-+ case 3:
-+ /*invalid*/
-+ WARNING("Invalid line state of %d\n",r);
-+ break;
-+
-+ }
-+ } else {
-+
-+ /* high vs full speed is just a guess until after reset */
-+ if (devctl & MUSB_DEVCTL_LSDEV)
-+ musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
-+ }
-
- if (hcd->status_urb)
- usb_hcd_poll_rh_status(hcd);
-@@ -974,6 +1102,8 @@
- musb->ignore_disconnect = 1;
- musb_g_reset(musb);
- /* FALLTHROUGH */
-+ case OTG_STATE_A_HOST:
-+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
- case OTG_STATE_A_WAIT_BCON: /* OPT TD.4.7-900ms */
- DBG(1, "HNP: Setting timer as %s\n",
- otg_state_string(musb));
-@@ -2421,8 +2551,7 @@
- DBG(1, "%s mode, status %d, devctl %02x %c\n",
- "HOST", status,
- musb_readb(musb->mregs, MUSB_DEVCTL),
-- (musb_readb(musb->mregs, MUSB_DEVCTL)
-- & MUSB_DEVCTL_BDEVICE
-+ (!host_mode(musb->mregs)
- ? 'B' : 'A'));
-
- } else /* peripheral is enabled */ {
---- kernel-power-2.6.28.orig/drivers/usb/musb/musb_core.h
-+++ kernel-power-2.6.28/drivers/usb/musb/musb_core.h
-@@ -85,6 +85,16 @@
- #define is_host_active(musb) is_host_capable()
- #endif
-
-+static inline int host_mode(void __iomem *addr)
-+{
-+ u8 devctl,testmode;
-+ devctl = musb_readb(addr, MUSB_DEVCTL);
-+ testmode = musb_readb(addr,MUSB_TESTMODE);
-+
-+ return (testmode & MUSB_TEST_FORCE_HOST) || !(devctl & MUSB_DEVCTL_BDEVICE);
-+}
-+
-+
- #if defined(CONFIG_USB_MUSB_OTG) || defined(CONFIG_USB_MUSB_PERIPHERAL)
- /* for some reason, the "select USB_GADGET_MUSB_HDRC" doesn't always
- * override that choice selection (often USB_GADGET_DUMMY_HCD).
-@@ -593,6 +603,14 @@
-
- extern int musb_platform_set_mode(struct musb *musb, u8 musb_mode);
-
-+enum musb_term {
-+ MUSB_TERM_HOST_HIGHSPEED,
-+ MUSB_TERM_HOST_FULLSPEED,
-+ MUSB_TERM_HOST_LOWSPEED,
-+};
-+
-+extern void musb_force_term(void __iomem *addr, enum musb_term term);
-+
- #if defined(CONFIG_USB_TUSB6010) || defined(CONFIG_BLACKFIN) || \
- defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
- extern void musb_platform_try_idle(struct musb *musb, unsigned long timeout);
---- kernel-power-2.6.28.orig/drivers/usb/musb/musb_gadget.c
-+++ kernel-power-2.6.28/drivers/usb/musb/musb_gadget.c
-@@ -1957,7 +1957,7 @@
- u8 power;
-
- DBG(3, "<== %s addr=%x driver '%s'\n",
-- (devctl & MUSB_DEVCTL_BDEVICE)
-+ !host_mode(musb->mregs)
- ? "B-Device" : "A-Device",
- musb_readb(mbase, MUSB_FADDR),
- musb->gadget_driver
-@@ -1994,7 +1994,7 @@
- /* Normal reset, as B-Device;
- * or else after HNP, as A-Device
- */
-- if (devctl & MUSB_DEVCTL_BDEVICE) {
-+ if (!host_mode(musb->mregs)) {
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
- musb->g.is_a_peripheral = 0;
- } else if (is_otg_enabled(musb)) {
---- kernel-power-2.6.28.orig/drivers/usb/musb/musb_host.c
-+++ kernel-power-2.6.28/drivers/usb/musb/musb_host.c
-@@ -1863,8 +1863,10 @@
- unsigned interval;
-
- /* host role must be active */
-- if (!is_host_active(musb) || !musb->is_active)
-+ if (!is_host_active(musb) || !musb->is_active) {
-+ printk(KERN_ERR "musb is_host_active %d is_active %d\n",is_host_active(musb),musb->is_active);
- return -ENODEV;
-+ }
-
- spin_lock_irqsave(&musb->lock, flags);
- ret = usb_hcd_link_urb_to_ep(hcd, urb);
-@@ -2275,6 +2277,7 @@
- return 0;
- }
-
-+
- const struct hc_driver musb_hc_driver = {
- .description = "musb-hcd",
- .product_desc = "MUSB HDRC host driver",
-@@ -2298,6 +2301,5 @@
- .hub_control = musb_hub_control,
- .bus_suspend = musb_bus_suspend,
- .bus_resume = musb_bus_resume,
-- /* .start_port_reset = NULL, */
- /* .hub_irq_enable = NULL, */
- };
---- kernel-power-2.6.28.orig/drivers/usb/musb/musb_procfs.c
-+++ kernel-power-2.6.28/drivers/usb/musb/musb_procfs.c
-@@ -37,6 +37,7 @@
- #include <linux/seq_file.h>
- #include <linux/uaccess.h> /* FIXME remove procfs writes */
- #include <mach/hardware.h>
-+#include <asm/mach-types.h>
-
- #include "musb_core.h"
-
-@@ -450,8 +451,8 @@
- return 0;
- buffer += count;
-
-- code = sprintf(buffer, "OTG state: %s; %sactive\n",
-- otg_state_string(musb),
-+ code = sprintf(buffer, "OTG state: %s:%d; %sactive\n",
-+ otg_state_string(musb),musb->xceiv->state,
- musb->is_active ? "" : "in");
- if (code <= 0)
- goto done;
-@@ -591,16 +592,34 @@
- *
- * C soft-connect
- * c soft-disconnect
-- * I enable HS
-- * i disable HS
-- * s stop session
-- * F force session (OTG-unfriendly)
-+ * D<num> set/query the debug level
- * E rElinquish bus (OTG)
-+ * e enumerate
-+ * F force session (OTG-unfriendly)
- * H request host mode
- * h cancel host request
-+ * I enable HS
-+ * i disable HS
-+ * J set HS test mode
-+ * j clear HS test mode
-+ * K set FS test mode
-+ * k clear FS test mode
-+ * M set host test mode
-+ * m clear host test mode
-+ * R reset peripheral
-+ * r resume root hub
-+ * s stop session
- * T start sending TEST_PACKET
-- * D<num> set/query the debug level
-+ * X term highspeed
-+ * Y term fullspeed
-+ * Z term lowspeed
-+ *
- */
-+
-+extern inline void mbusywait(int ms);
-+extern void musb_port_reset(struct musb *musb, bool do_reset);
-+extern void musb_port_suspend(struct musb *musb, bool do_suspend);
-+
- static int musb_proc_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
- {
-@@ -608,49 +627,63 @@
- u8 reg;
- struct musb *musb = (struct musb *)data;
- void __iomem *mbase = musb->mregs;
-+ unsigned long flags;
-+ struct usb_hcd *hcd = musb_to_hcd(musb);
-+ struct usb_bus *bus = hcd_to_bus(hcd);
-
- /* MOD_INC_USE_COUNT; */
-
- if (unlikely(copy_from_user(&cmd, buffer, 1)))
- return -EFAULT;
-
-+
- switch (cmd) {
- case 'C':
- if (mbase) {
-- reg = musb_readb(mbase, MUSB_POWER)
-- | MUSB_POWER_SOFTCONN;
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg |= MUSB_POWER_SOFTCONN;
- musb_writeb(mbase, MUSB_POWER, reg);
- }
- break;
-
- case 'c':
- if (mbase) {
-- reg = musb_readb(mbase, MUSB_POWER)
-- & ~MUSB_POWER_SOFTCONN;
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg &= ~MUSB_POWER_SOFTCONN;
- musb_writeb(mbase, MUSB_POWER, reg);
- }
- break;
-
- case 'I':
- if (mbase) {
-- reg = musb_readb(mbase, MUSB_POWER)
-- | MUSB_POWER_HSENAB;
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg |= MUSB_POWER_HSENAB;
- musb_writeb(mbase, MUSB_POWER, reg);
- }
- break;
-
- case 'i':
- if (mbase) {
-- reg = musb_readb(mbase, MUSB_POWER)
-- & ~MUSB_POWER_HSENAB;
-+ reg = musb_readb(mbase, MUSB_POWER);
-+ reg &= ~MUSB_POWER_HSENAB;
- musb_writeb(mbase, MUSB_POWER, reg);
- }
- break;
-
- case 'F':
-- reg = musb_readb(mbase, MUSB_DEVCTL);
-- reg |= MUSB_DEVCTL_SESSION;
-- musb_writeb(mbase, MUSB_DEVCTL, reg);
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_DEVCTL);
-+ reg |= MUSB_DEVCTL_SESSION;
-+ musb_writeb(mbase, MUSB_DEVCTL, reg);
-+ }
-+ break;
-+
-+ case 's':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_DEVCTL);
-+ reg &= ~MUSB_DEVCTL_SESSION;
-+ musb_writeb(mbase, MUSB_DEVCTL, reg);
-+ }
- break;
-
- case 'H':
-@@ -679,6 +712,114 @@
- }
- break;
-
-+ case 'M':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg |= MUSB_TEST_FORCE_HOST;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+ }
-+ break;
-+
-+ case 'm':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg &= ~MUSB_TEST_FORCE_HOST;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+ MUSB_DEV_MODE(musb);
-+ musb->xceiv->state = OTG_STATE_B_IDLE;
-+ }
-+ break;
-+
-+ case 'L':
-+ musb->xceiv->state = OTG_STATE_A_HOST;
-+ MUSB_HST_MODE(musb);
-+ break;
-+
-+ case 'l':
-+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
-+ MUSB_HST_MODE(musb);
-+ break;
-+
-+ case 'J':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg |= MUSB_TEST_FORCE_HS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+ }
-+ break;
-+
-+ case 'j':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg &= ~MUSB_TEST_FORCE_HS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+ }
-+ break;
-+
-+ case 'K':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg |= MUSB_TEST_FORCE_FS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+ }
-+ break;
-+
-+ case 'k':
-+ if (mbase) {
-+ reg = musb_readb(mbase, MUSB_TESTMODE);
-+ reg &= ~MUSB_TEST_FORCE_FS;
-+ musb_writeb(mbase, MUSB_TESTMODE, reg);
-+ }
-+ break;
-+
-+ case 'X':
-+ if (mbase)
-+ musb_force_term(mbase,MUSB_TERM_HOST_HIGHSPEED);
-+ break;
-+
-+ case 'Y':
-+ if (mbase)
-+ musb_force_term(mbase,MUSB_TERM_HOST_FULLSPEED);
-+ break;
-+
-+ case 'Z':
-+ if (mbase)
-+ musb_force_term(mbase,MUSB_TERM_HOST_LOWSPEED);
-+ break;
-+
-+ case 'R':
-+ musb_port_reset(musb, true);
-+ while (time_before(jiffies, musb->rh_timer))
-+ msleep(1);
-+ musb_port_reset(musb, false);
-+
-+ break;
-+
-+ case 'r':
-+ usb_hcd_resume_root_hub(hcd);
-+ break;
-+
-+ case 'e':
-+ if(bus)
-+ usb_bus_start_enum(bus,bus->otg_port);
-+ break;
-+
-+ case 'U':
-+ /*Suspend*/
-+ musb_port_suspend(musb, true);
-+ break;
-+
-+ case 'u':
-+ /*Resume*/
-+ musb_port_suspend(musb, false);
-+ /*How to end sanely? */
-+ musb_port_reset(musb, true);
-+ while (time_before(jiffies, musb->rh_timer))
-+ msleep(1);
-+ musb_port_reset(musb, false);
-+
-+ break;
-+
- case '?':
- INFO("?: you are seeing it\n");
- INFO("C/c: soft connect enable/disable\n");
-@@ -695,6 +836,7 @@
-
- musb_platform_try_idle(musb, 0);
-
-+
- return count;
- }
-
-@@ -709,6 +851,8 @@
-
- count -= off;
- count -= 1; /* for NUL at end */
-+ count -= 20; /* Padding */
-+
- if (count <= 0)
- return -EINVAL;
-
-@@ -720,6 +864,9 @@
- count -= code;
- }
-
-+ if (count < 0)
-+ goto done;
-+
- /* generate the report for the end points */
- /* REVISIT ... not unless something's connected! */
- for (epnum = 0; count >= 0 && epnum < musb->nr_endpoints;
-@@ -728,14 +875,22 @@
- if (code > 0) {
- buffer += code;
- count -= code;
-+ if (count < 0)
-+ goto done;
- }
- }
-
-+
-+ done:
-+
- musb_platform_try_idle(musb, 0);
-
- spin_unlock_irqrestore(&musb->lock, flags);
- *eof = 1;
-
-+ if(count < 0)
-+ return -EINVAL;
-+
- return buffer - page;
- }
-
---- kernel-power-2.6.28.orig/drivers/usb/musb/musb_virthub.c
-+++ kernel-power-2.6.28/drivers/usb/musb/musb_virthub.c
-@@ -46,7 +46,7 @@
- #include "musb_core.h"
-
-
--static void musb_port_suspend(struct musb *musb, bool do_suspend)
-+void musb_port_suspend(struct musb *musb, bool do_suspend)
- {
- u8 power;
- void __iomem *mbase = musb->mregs;
-@@ -106,11 +106,13 @@
-
- /* later, GetPortStatus will stop RESUME signaling */
- musb->port1_status |= MUSB_PORT_STAT_RESUME;
-- musb->rh_timer = jiffies + msecs_to_jiffies(20);
-+ /*OMAP documentation states range of 10-15 ms */
-+ musb->rh_timer = jiffies + msecs_to_jiffies(13);
-+ // musb->rh_timer = jiffies + msecs_to_jiffies(20);
- }
- }
-
--static void musb_port_reset(struct musb *musb, bool do_reset)
-+void musb_port_reset(struct musb *musb, bool do_reset)
- {
- u8 power;
- void __iomem *mbase = musb->mregs;
-@@ -131,7 +133,7 @@
- */
- power = musb_readb(mbase, MUSB_POWER);
- if (do_reset) {
--
-+ DBG(4, "root port reset started\n");
- /*
- * If RESUME is set, we must make sure it stays minimum 20 ms.
- * Then we must clear RESUME and wait a bit to let musb start
---- kernel-power-2.6.28.orig/drivers/usb/musb/omap2430.c
-+++ kernel-power-2.6.28/drivers/usb/musb/omap2430.c
-@@ -77,11 +77,14 @@
-
- switch (musb->xceiv->state) {
- case OTG_STATE_A_WAIT_BCON:
-+ if(host_mode(musb->mregs))
-+ break; /*Don't time out*/
-+
- devctl &= ~MUSB_DEVCTL_SESSION;
- musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
-
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
-- if (devctl & MUSB_DEVCTL_BDEVICE) {
-+ if (!host_mode(musb->mregs)) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
- MUSB_DEV_MODE(musb);
- } else {
-@@ -109,11 +112,14 @@
- #endif
- #ifdef CONFIG_USB_MUSB_HDRC_HCD
- case OTG_STATE_A_HOST:
-+
-+
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
-- if (devctl & MUSB_DEVCTL_BDEVICE)
-+ if (!host_mode(musb->mregs))
- musb->xceiv->state = OTG_STATE_B_IDLE;
-- else
-- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
-+ /*Don't time out if host*/
-+ // else
-+ // musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
- #endif
- default:
- break;
-@@ -133,7 +139,7 @@
- /* Never idle if active, or when VBUS timeout is not set as host */
- if (musb->is_active || ((musb->a_wait_bcon == 0)
- && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
-- DBG(4, "%s active, deleting timer\n", otg_state_string(musb));
-+ DBG(6, "%s active, deleting timer\n", otg_state_string(musb));
- del_timer(&musb_idle_timer);
- last_timer = jiffies;
- return;
-@@ -143,13 +149,13 @@
- if (!timer_pending(&musb_idle_timer))
- last_timer = timeout;
- else {
-- DBG(4, "Longer idle timer already pending, ignoring\n");
-+ DBG(6, "Longer idle timer already pending, ignoring\n");
- return;
- }
- }
- last_timer = timeout;
-
-- DBG(4, "%s inactive, for idle timer for %lu ms\n",
-+ DBG(6, "%s inactive, for idle timer for %lu ms\n",
- otg_state_string(musb),
- (unsigned long)jiffies_to_msecs(timeout - jiffies));
- mod_timer(&musb_idle_timer, timeout);
-@@ -182,8 +188,14 @@
- musb->xceiv->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
- devctl |= MUSB_DEVCTL_SESSION;
--
- MUSB_HST_MODE(musb);
-+
-+ if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) {
-+ /*Power is already applied. Skip VRISE and go directly to BCON.*/
-+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
-+ }
-+
-+
- } else {
- musb->is_active = 0;
-
-@@ -420,7 +432,7 @@
- u8 r;
- unsigned long flags;
-
-- DBG(3, "restoring register context\n");
-+ DBG(3, "restoring register context for %s\n","musb_restore_ctx_and_resume");
-
- if (musb->board && musb->board->xceiv_power)
- musb->board->xceiv_power(1);
-@@ -431,13 +443,17 @@
- else
- clk_enable(musb->clock);
-
-- /* Recover OTG control */
-- r = musb_ulpi_readb(musb->mregs, ISP1704_OTG_CTRL);
-- r |= ISP1704_OTG_CTRL_IDPULLUP | ISP1704_OTG_CTRL_DP_PULLDOWN;
-- musb_ulpi_writeb(musb->mregs, ISP1704_OTG_CTRL, r);
--
-+ if(host_mode(musb->mregs)) {
-+ musb_force_term(musb->mregs,MUSB_TERM_HOST_FULLSPEED);
-+ r = musb_ulpi_readb(musb->mregs,ISP1704_FUNC_CTRL);
-+ } else {
-+ /* Recover OTG control */
-+ r = musb_ulpi_readb(musb->mregs, ISP1704_OTG_CTRL);
-+ r |= ISP1704_OTG_CTRL_IDPULLUP | ISP1704_OTG_CTRL_DP_PULLDOWN;
-+ musb_ulpi_writeb(musb->mregs, ISP1704_OTG_CTRL, r);
-+ r = ISP1704_FUNC_CTRL_FULL_SPEED;
-+ }
- /* Recover FUNC control */
-- r = ISP1704_FUNC_CTRL_FULL_SPEED;
- r |= ISP1704_FUNC_CTRL_SUSPENDM | ISP1704_FUNC_CTRL_RESET;
- musb_ulpi_writeb(musb->mregs, ISP1704_FUNC_CTRL, r);
-
---- kernel-power-2.6.28.orig/drivers/usb/otg/otg.c
-+++ kernel-power-2.6.28/drivers/usb/otg/otg.c
-@@ -160,7 +160,8 @@
-
- /* add other match criteria here ... */
-
--
-+ return 1;
-+
- /* OTG MESSAGE: report errors here, customize to match your product */
- dev_err(&dev->dev, "device v%04x p%04x is not supported\n",
- le16_to_cpu(dev->descriptor.idVendor),
---- kernel-power-2.6.28.orig/drivers/usb/otg/twl4030-usb.c
-+++ kernel-power-2.6.28/drivers/usb/otg/twl4030-usb.c
-@@ -239,9 +239,9 @@
-
- enum linkstat {
- USB_LINK_UNKNOWN = 0,
-- USB_LINK_NONE,
-- USB_LINK_VBUS,
-- USB_LINK_ID,
-+ USB_LINK_NONE = 1,
-+ USB_LINK_VBUS = 2,
-+ USB_LINK_ID = 3,
- };
-
- struct twl4030_usb {
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" MUSB_DRIVER_NAME);
+
+
+inline void mbusywait(int ms)
+{
+ unsigned long end_time = jiffies + msecs_to_jiffies(ms);
+ while(time_before(jiffies,end_time))
+ cpu_relax();
+
+}
+
+void musb_force_term(void __iomem *addr, enum musb_term term)
+{
+ u8 r;
+
+
+ r = musb_ulpi_readb(addr, ISP1704_OTG_CTRL);
+ r |= ISP1704_OTG_CTRL_DP_PULLDOWN | ISP1704_OTG_CTRL_DM_PULLDOWN;
+ musb_ulpi_writeb(addr, ISP1704_OTG_CTRL, r);
+
+ r = musb_ulpi_readb(addr, ISP1704_FUNC_CTRL);
+
+ switch(term) {
+
+ case MUSB_TERM_HOST_HIGHSPEED:
+ r &= ~ISP1704_FUNC_CTRL_XCVRSELECT;
+ r &= ~ISP1704_FUNC_CTRL_TERMSELECT;
+ r &= ~ISP1704_FUNC_CTRL_OPMODE;
+ break;
+
+ case MUSB_TERM_HOST_FULLSPEED:
+ r |= 1 << ISP1704_FUNC_CTRL_XCVRSELECT_SHIFT;
+ r |= ISP1704_FUNC_CTRL_TERMSELECT;
+ r &= ~ISP1704_FUNC_CTRL_OPMODE;
+ break;
+
+ case MUSB_TERM_HOST_LOWSPEED:
+ r |= 2 << ISP1704_FUNC_CTRL_XCVRSELECT_SHIFT;
+ r |= ISP1704_FUNC_CTRL_TERMSELECT;
+ r &= ~ISP1704_FUNC_CTRL_OPMODE;
+ break;
+
+ default:
+ ERR("Unknown musb termination\n");
+ return;
+ }
+
+ r |= ISP1704_OTG_CTRL_IDPULLUP;
+ musb_ulpi_writeb(addr, ISP1704_FUNC_CTRL, r);
+
+}
+
+
+
static inline int musb_verify_charger(void __iomem *addr)
{
u8 r, ret = 0;
u8 vdat = 0;
u8 r;
+ u8 testmode;
+ testmode = musb_readb(musb->mregs,MUSB_TESTMODE);
msleep(5);
break;
}
- if (vdat) {
+ if (vdat && !(testmode & MUSB_TEST_FORCE_HOST)) {
/* REVISIT: This code works only with dedicated chargers!
* When support for HOST/HUB chargers is added, don't
* forget this.
prefetch((u8 *)src);
- DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
+ DBG(6, "%cX ep%d fifo %p count %d buf %p\n",
'T', hw_ep->epnum, fifo, len, src);
/* we can't assume unaligned reads work */
{
void __iomem *fifo = hw_ep->fifo;
- DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
+ DBG(6, "%cX ep%d fifo %p count %d buf %p\n",
'R', hw_ep->epnum, fifo, len, dst);
/* we can't assume unaligned writes work */
{
struct musb *musb = (struct musb *)data;
unsigned long flags;
-
spin_lock_irqsave(&musb->lock, flags);
switch (musb->xceiv->state) {
case OTG_STATE_B_WAIT_ACON:
static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
u8 devctl, u8 power)
{
+ u8 testmode;
irqreturn_t handled = IRQ_NONE;
void __iomem *mbase = musb->mregs;
u8 r;
+ testmode = musb_readb(mbase,MUSB_TESTMODE);
+ if(testmode & MUSB_TEST_FORCE_HOST) {
+ if(int_usb & MUSB_INTR_SESSREQ) {
+ DBG(1,"Piggybacking CONNECT on SESS REQ\n");
+ musb->int_usb |= MUSB_INTR_CONNECT;
+ }
+ }
+
DBG(3, "<== Power=%02x, DevCtl=%02x, int_usb=0x%x\n", power, devctl,
int_usb);
} else {
switch (musb->xceiv->state) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
+ case OTG_STATE_A_WAIT_BCON:
+ case OTG_STATE_A_HOST:
case OTG_STATE_A_SUSPEND:
/* possibly DISCONNECT is upcoming */
musb->xceiv->state = OTG_STATE_A_HOST;
* be discarded silently.
*/
if ((devctl & MUSB_DEVCTL_VBUS)
- && !(devctl & MUSB_DEVCTL_BDEVICE)) {
+ && host_mode(musb->mregs)) {
musb_writeb(mbase, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
musb->ep0_stage = MUSB_EP0_START;
musb->xceiv->state = OTG_STATE_A_IDLE;
+ msecs_to_jiffies(musb->a_wait_bcon));
break;
case OTG_STATE_A_HOST:
+ if(testmode & MUSB_TEST_FORCE_HOST) {
+ // musb->int_usb |= MUSB_INTR_RESUME;
+ break;
+ }
+
musb->xceiv->state = OTG_STATE_A_SUSPEND;
musb->is_active = is_otg_enabled(musb)
&& musb->xceiv->host->b_hnp_enable;
+
break;
case OTG_STATE_B_HOST:
/* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
musb->is_active = 1;
set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
+
musb->ep0_stage = MUSB_EP0_START;
#ifdef CONFIG_USB_MUSB_OTG
musb->port1_status |= USB_PORT_STAT_CONNECTION
|(USB_PORT_STAT_C_CONNECTION << 16);
- /* high vs full speed is just a guess until after reset */
- if (devctl & MUSB_DEVCTL_LSDEV)
- musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
+ if (testmode & MUSB_TEST_FORCE_HOST) {
+ u8 r,reg;
+ void __iomem *mbase = musb->mregs;
+
+ musb_force_term(musb->mregs,MUSB_TERM_HOST_HIGHSPEED);
+
+ r = musb_ulpi_readb(mbase, ISP1704_DEBUG);
+ DBG(1,"Linestate %x\n",r);
+ switch(r) {
+ case 2:
+ musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg &= ~MUSB_TEST_FORCE_FS;
+ reg &= ~MUSB_TEST_FORCE_HS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg &= ~MUSB_POWER_HSENAB;
+ musb_writeb(mbase, MUSB_POWER, reg);
+
+ musb_force_term(musb->mregs,MUSB_TERM_HOST_LOWSPEED);
+ break;
+ case 1:
+ /*High or full speed*/
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ if(reg & MUSB_TEST_FORCE_HS) {
+ /*High speed*/
+ reg &= ~MUSB_TEST_FORCE_FS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg |= MUSB_POWER_HSENAB;
+ musb_writeb(mbase, MUSB_POWER, reg);
+ } else {
+ /*Full speed*/
+ reg |= MUSB_TEST_FORCE_FS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg &= ~MUSB_POWER_HSENAB;
+ musb_writeb(mbase, MUSB_POWER, reg);
+ }
+
+ musb_force_term(mbase,MUSB_TERM_HOST_FULLSPEED);
+
+ break;
+ case 0:
+ case 3:
+ /*invalid*/
+ WARNING("Invalid line state of %d\n",r);
+ break;
+
+ }
+ } else {
+
+ /* high vs full speed is just a guess until after reset */
+ if (devctl & MUSB_DEVCTL_LSDEV)
+ musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
+ }
if (hcd->status_urb)
usb_hcd_poll_rh_status(hcd);
musb->ignore_disconnect = 1;
musb_g_reset(musb);
/* FALLTHROUGH */
+ case OTG_STATE_A_HOST:
+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
case OTG_STATE_A_WAIT_BCON: /* OPT TD.4.7-900ms */
DBG(1, "HNP: Setting timer as %s\n",
otg_state_string(musb));
DBG(1, "%s mode, status %d, devctl %02x %c\n",
"HOST", status,
musb_readb(musb->mregs, MUSB_DEVCTL),
- (musb_readb(musb->mregs, MUSB_DEVCTL)
- & MUSB_DEVCTL_BDEVICE
+ (!host_mode(musb->mregs)
? 'B' : 'A'));
} else /* peripheral is enabled */ {
#include <linux/seq_file.h>
#include <linux/uaccess.h> /* FIXME remove procfs writes */
#include <mach/hardware.h>
+#include <asm/mach-types.h>
#include "musb_core.h"
return 0;
buffer += count;
- code = sprintf(buffer, "OTG state: %s; %sactive\n",
- otg_state_string(musb),
+ code = sprintf(buffer, "OTG state: %s:%d; %sactive\n",
+ otg_state_string(musb),musb->xceiv->state,
musb->is_active ? "" : "in");
if (code <= 0)
goto done;
*
* C soft-connect
* c soft-disconnect
- * I enable HS
- * i disable HS
- * s stop session
- * F force session (OTG-unfriendly)
+ * D<num> set/query the debug level
* E rElinquish bus (OTG)
+ * e enumerate
+ * F force session (OTG-unfriendly)
* H request host mode
* h cancel host request
+ * I enable HS
+ * i disable HS
+ * J set HS test mode
+ * j clear HS test mode
+ * K set FS test mode
+ * k clear FS test mode
+ * M set host test mode
+ * m clear host test mode
+ * R reset peripheral
+ * r resume root hub
+ * s stop session
* T start sending TEST_PACKET
- * D<num> set/query the debug level
+ * X term highspeed
+ * Y term fullspeed
+ * Z term lowspeed
+ *
*/
+
+extern inline void mbusywait(int ms);
+extern void musb_port_reset(struct musb *musb, bool do_reset);
+extern void musb_port_suspend(struct musb *musb, bool do_suspend);
+
static int musb_proc_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
u8 reg;
struct musb *musb = (struct musb *)data;
void __iomem *mbase = musb->mregs;
+ unsigned long flags;
+ struct usb_hcd *hcd = musb_to_hcd(musb);
+ struct usb_bus *bus = hcd_to_bus(hcd);
/* MOD_INC_USE_COUNT; */
if (unlikely(copy_from_user(&cmd, buffer, 1)))
return -EFAULT;
+
switch (cmd) {
case 'C':
if (mbase) {
- reg = musb_readb(mbase, MUSB_POWER)
- | MUSB_POWER_SOFTCONN;
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg |= MUSB_POWER_SOFTCONN;
musb_writeb(mbase, MUSB_POWER, reg);
}
break;
case 'c':
if (mbase) {
- reg = musb_readb(mbase, MUSB_POWER)
- & ~MUSB_POWER_SOFTCONN;
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg &= ~MUSB_POWER_SOFTCONN;
musb_writeb(mbase, MUSB_POWER, reg);
}
break;
case 'I':
if (mbase) {
- reg = musb_readb(mbase, MUSB_POWER)
- | MUSB_POWER_HSENAB;
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg |= MUSB_POWER_HSENAB;
musb_writeb(mbase, MUSB_POWER, reg);
}
break;
case 'i':
if (mbase) {
- reg = musb_readb(mbase, MUSB_POWER)
- & ~MUSB_POWER_HSENAB;
+ reg = musb_readb(mbase, MUSB_POWER);
+ reg &= ~MUSB_POWER_HSENAB;
musb_writeb(mbase, MUSB_POWER, reg);
}
break;
case 'F':
- reg = musb_readb(mbase, MUSB_DEVCTL);
- reg |= MUSB_DEVCTL_SESSION;
- musb_writeb(mbase, MUSB_DEVCTL, reg);
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_DEVCTL);
+ reg |= MUSB_DEVCTL_SESSION;
+ musb_writeb(mbase, MUSB_DEVCTL, reg);
+ }
+ break;
+
+ case 's':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_DEVCTL);
+ reg &= ~MUSB_DEVCTL_SESSION;
+ musb_writeb(mbase, MUSB_DEVCTL, reg);
+ }
break;
case 'H':
}
break;
+ case 'M':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg |= MUSB_TEST_FORCE_HOST;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+ }
+ break;
+
+ case 'm':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg &= ~MUSB_TEST_FORCE_HOST;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+ MUSB_DEV_MODE(musb);
+ musb->xceiv->state = OTG_STATE_B_IDLE;
+ }
+ break;
+
+ case 'L':
+ musb->xceiv->state = OTG_STATE_A_HOST;
+ MUSB_HST_MODE(musb);
+ break;
+
+ case 'l':
+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ MUSB_HST_MODE(musb);
+ break;
+
+ case 'J':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg |= MUSB_TEST_FORCE_HS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+ }
+ break;
+
+ case 'j':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg &= ~MUSB_TEST_FORCE_HS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+ }
+ break;
+
+ case 'K':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg |= MUSB_TEST_FORCE_FS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+ }
+ break;
+
+ case 'k':
+ if (mbase) {
+ reg = musb_readb(mbase, MUSB_TESTMODE);
+ reg &= ~MUSB_TEST_FORCE_FS;
+ musb_writeb(mbase, MUSB_TESTMODE, reg);
+ }
+ break;
+
+ case 'X':
+ if (mbase)
+ musb_force_term(mbase,MUSB_TERM_HOST_HIGHSPEED);
+ break;
+
+ case 'Y':
+ if (mbase)
+ musb_force_term(mbase,MUSB_TERM_HOST_FULLSPEED);
+ break;
+
+ case 'Z':
+ if (mbase)
+ musb_force_term(mbase,MUSB_TERM_HOST_LOWSPEED);
+ break;
+
+ case 'R':
+ musb_port_reset(musb, true);
+ while (time_before(jiffies, musb->rh_timer))
+ msleep(1);
+ musb_port_reset(musb, false);
+
+ break;
+
+ case 'r':
+ usb_hcd_resume_root_hub(hcd);
+ break;
+
+ case 'e':
+ if(bus)
+ usb_bus_start_enum(bus,bus->otg_port);
+ break;
+
+ case 'U':
+ /*Suspend*/
+ musb_port_suspend(musb, true);
+ break;
+
+ case 'u':
+ /*Resume*/
+ musb_port_suspend(musb, false);
+ /*How to end sanely? */
+ musb_port_reset(musb, true);
+ while (time_before(jiffies, musb->rh_timer))
+ msleep(1);
+ musb_port_reset(musb, false);
+
+ break;
+
case '?':
INFO("?: you are seeing it\n");
INFO("C/c: soft connect enable/disable\n");
musb_platform_try_idle(musb, 0);
+
return count;
}
count -= off;
count -= 1; /* for NUL at end */
+ count -= 20; /* Padding */
+
if (count <= 0)
return -EINVAL;
count -= code;
}
+ if (count < 0)
+ goto done;
+
/* generate the report for the end points */
/* REVISIT ... not unless something's connected! */
for (epnum = 0; count >= 0 && epnum < musb->nr_endpoints;
if (code > 0) {
buffer += code;
count -= code;
+ if (count < 0)
+ goto done;
}
}
+
+ done:
+
musb_platform_try_idle(musb, 0);
spin_unlock_irqrestore(&musb->lock, flags);
*eof = 1;
+ if(count < 0)
+ return -EINVAL;
+
return buffer - page;
}