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-rw-r--r--drivers/usb/musb/am35x.c8
-rw-r--r--drivers/usb/musb/blackfin.c5
-rw-r--r--drivers/usb/musb/cppi_dma.c9
-rw-r--r--drivers/usb/musb/da8xx.c6
-rw-r--r--drivers/usb/musb/davinci.c7
-rw-r--r--drivers/usb/musb/jz4740.c6
-rw-r--r--drivers/usb/musb/musb_core.c81
-rw-r--r--drivers/usb/musb/musb_core.h28
-rw-r--r--drivers/usb/musb/musb_cppi41.c8
-rw-r--r--drivers/usb/musb/musb_debugfs.c100
-rw-r--r--drivers/usb/musb/musb_dma.h67
-rw-r--r--drivers/usb/musb/musb_dsps.c6
-rw-r--r--drivers/usb/musb/musb_gadget.c24
-rw-r--r--drivers/usb/musb/musb_host.c536
-rw-r--r--drivers/usb/musb/musb_io.h2
-rw-r--r--drivers/usb/musb/musb_regs.h80
-rw-r--r--drivers/usb/musb/musb_virthub.c2
-rw-r--r--drivers/usb/musb/musbhsdma.c9
-rw-r--r--drivers/usb/musb/omap2430.c5
-rw-r--r--drivers/usb/musb/tusb6010.c8
-rw-r--r--drivers/usb/musb/tusb6010.h6
-rw-r--r--drivers/usb/musb/tusb6010_omap.c9
-rw-r--r--drivers/usb/musb/ux500.c8
-rw-r--r--drivers/usb/musb/ux500_dma.c8
24 files changed, 694 insertions, 334 deletions
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 220fd4d3b..c41fe588d 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -438,11 +438,15 @@ static void am35x_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
static const struct musb_platform_ops am35x_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP,
.init = am35x_musb_init,
.exit = am35x_musb_exit,
.read_fifo = am35x_read_fifo,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
.enable = am35x_musb_enable,
.disable = am35x_musb_disable,
@@ -565,7 +569,7 @@ static int am35x_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int am35x_suspend(struct device *dev)
{
struct am35x_glue *glue = dev_get_drvdata(dev);
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 6123b748d..310238c6b 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -465,6 +465,7 @@ static int bfin_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops bfin_ops = {
+ .quirks = MUSB_DMA_INVENTRA,
.init = bfin_musb_init,
.exit = bfin_musb_exit,
@@ -477,6 +478,10 @@ static const struct musb_platform_ops bfin_ops = {
.fifo_mode = 2,
.read_fifo = bfin_read_fifo,
.write_fifo = bfin_write_fifo,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
.enable = bfin_musb_enable,
.disable = bfin_musb_disable,
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 904fb85d8..cc134109b 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -1297,7 +1297,8 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
EXPORT_SYMBOL_GPL(cppi_interrupt);
/* Instantiate a software object representing a DMA controller. */
-struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mregs)
+struct dma_controller *
+cppi_dma_controller_create(struct musb *musb, void __iomem *mregs)
{
struct cppi *controller;
struct device *dev = musb->controller;
@@ -1334,7 +1335,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr
if (irq > 0) {
if (request_irq(irq, cppi_interrupt, 0, "cppi-dma", musb)) {
dev_err(dev, "request_irq %d failed!\n", irq);
- dma_controller_destroy(&controller->controller);
+ musb_dma_controller_destroy(&controller->controller);
return NULL;
}
controller->irq = irq;
@@ -1343,11 +1344,12 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr
cppi_controller_start(controller);
return &controller->controller;
}
+EXPORT_SYMBOL_GPL(cppi_dma_controller_create);
/*
* Destroy a previously-instantiated DMA controller.
*/
-void dma_controller_destroy(struct dma_controller *c)
+void cppi_dma_controller_destroy(struct dma_controller *c)
{
struct cppi *cppi;
@@ -1363,6 +1365,7 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(cppi);
}
+EXPORT_SYMBOL_GPL(cppi_dma_controller_destroy);
/*
* Context: controller irqlocked, endpoint selected
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 9a9c82a4d..b03d3b867 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -458,11 +458,15 @@ static int da8xx_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops da8xx_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_CPPI | MUSB_INDEXED_EP,
.init = da8xx_musb_init,
.exit = da8xx_musb_exit,
.fifo_mode = 2,
+#ifdef CONFIG_USB_TI_CPPI_DMA
+ .dma_init = cppi_dma_controller_create,
+ .dma_exit = cppi_dma_controller_destroy,
+#endif
.enable = da8xx_musb_enable,
.disable = da8xx_musb_disable,
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 3c1d9b211..cee61a516 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -284,7 +284,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
* mask, state, "vector", and EOI registers.
*/
cppi = container_of(musb->dma_controller, struct cppi, controller);
- if (is_cppi_enabled() && musb->dma_controller && !cppi->irq)
+ if (is_cppi_enabled(musb) && musb->dma_controller && !cppi->irq)
retval = cppi_interrupt(irq, __hci);
/* ack and handle non-CPPI interrupts */
@@ -491,9 +491,14 @@ static int davinci_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops davinci_ops = {
+ .quirks = MUSB_DMA_CPPI,
.init = davinci_musb_init,
.exit = davinci_musb_exit,
+#ifdef CONFIG_USB_TI_CPPI_DMA
+ .dma_init = cppi_dma_controller_create,
+ .dma_exit = cppi_dma_controller_destroy,
+#endif
.enable = davinci_musb_enable,
.disable = davinci_musb_disable,
diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c
index bb7b26325..5e5a8fa00 100644
--- a/drivers/usb/musb/jz4740.c
+++ b/drivers/usb/musb/jz4740.c
@@ -105,8 +105,12 @@ static int jz4740_musb_exit(struct musb *musb)
return 0;
}
+/*
+ * DMA has not been confirmed to work with CONFIG_USB_INVENTRA_DMA,
+ * so let's not set up the dma function pointers yet.
+ */
static const struct musb_platform_ops jz4740_musb_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP,
.fifo_mode = 2,
.init = jz4740_musb_init,
.exit = jz4740_musb_exit,
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 6dca3d794..514a6cdae 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -251,6 +251,11 @@ static u32 musb_indexed_ep_offset(u8 epnum, u16 offset)
return 0x10 + offset;
}
+static u32 musb_default_busctl_offset(u8 epnum, u16 offset)
+{
+ return 0x80 + (0x08 * epnum) + offset;
+}
+
static u8 musb_default_readb(const void __iomem *addr, unsigned offset)
{
return __raw_readb(addr + offset);
@@ -309,7 +314,7 @@ static void musb_default_write_fifo(struct musb_hw_ep *hw_ep, u16 len,
index += len & ~0x03;
}
if (len & 0x02) {
- musb_writew(fifo, 0, *(u16 *)&src[index]);
+ __raw_writew(*(u16 *)&src[index], fifo);
index += 2;
}
} else {
@@ -319,7 +324,7 @@ static void musb_default_write_fifo(struct musb_hw_ep *hw_ep, u16 len,
}
}
if (len & 0x01)
- musb_writeb(fifo, 0, src[index]);
+ __raw_writeb(src[index], fifo);
} else {
/* byte aligned */
iowrite8_rep(fifo, src, len);
@@ -351,7 +356,7 @@ static void musb_default_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
index = len & ~0x03;
}
if (len & 0x02) {
- *(u16 *)&dst[index] = musb_readw(fifo, 0);
+ *(u16 *)&dst[index] = __raw_readw(fifo);
index += 2;
}
} else {
@@ -361,7 +366,7 @@ static void musb_default_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
}
if (len & 0x01)
- dst[index] = musb_readb(fifo, 0);
+ dst[index] = __raw_readb(fifo);
} else {
/* byte aligned */
ioread8_rep(fifo, dst, len);
@@ -389,6 +394,15 @@ EXPORT_SYMBOL_GPL(musb_readl);
void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
EXPORT_SYMBOL_GPL(musb_writel);
+#ifndef CONFIG_MUSB_PIO_ONLY
+struct dma_controller *
+(*musb_dma_controller_create)(struct musb *musb, void __iomem *base);
+EXPORT_SYMBOL(musb_dma_controller_create);
+
+void (*musb_dma_controller_destroy)(struct dma_controller *c);
+EXPORT_SYMBOL(musb_dma_controller_destroy);
+#endif
+
/*
* New style IO functions
*/
@@ -1535,7 +1549,6 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
#endif
hw_ep->regs = musb->io.ep_offset(i, 0) + mbase;
- hw_ep->target_regs = musb_read_target_reg_base(i, mbase);
hw_ep->rx_reinit = 1;
hw_ep->tx_reinit = 1;
@@ -1658,15 +1671,13 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
/* called with controller lock already held */
if (!epnum) {
-#ifndef CONFIG_USB_TUSB_OMAP_DMA
- if (!is_cppi_enabled()) {
+ if (!is_cppi_enabled(musb)) {
/* endpoint 0 */
if (is_host_active(musb))
musb_h_ep0_irq(musb);
else
musb_g_ep0_irq(musb);
}
-#endif
} else {
/* endpoints 1..15 */
if (transmit) {
@@ -2029,6 +2040,11 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb->io.ep_offset = musb_flat_ep_offset;
musb->io.ep_select = musb_flat_ep_select;
}
+ /* And override them with platform specific ops if specified. */
+ if (musb->ops->ep_offset)
+ musb->io.ep_offset = musb->ops->ep_offset;
+ if (musb->ops->ep_select)
+ musb->io.ep_select = musb->ops->ep_select;
/* At least tusb6010 has its own offsets */
if (musb->ops->ep_offset)
@@ -2046,6 +2062,11 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
else
musb->io.fifo_offset = musb_default_fifo_offset;
+ if (musb->ops->busctl_offset)
+ musb->io.busctl_offset = musb->ops->busctl_offset;
+ else
+ musb->io.busctl_offset = musb_default_busctl_offset;
+
if (musb->ops->readb)
musb_readb = musb->ops->readb;
if (musb->ops->writeb)
@@ -2059,6 +2080,15 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
if (musb->ops->writel)
musb_writel = musb->ops->writel;
+#ifndef CONFIG_MUSB_PIO_ONLY
+ if (!musb->ops->dma_init || !musb->ops->dma_exit) {
+ dev_err(dev, "DMA controller not set\n");
+ goto fail2;
+ }
+ musb_dma_controller_create = musb->ops->dma_init;
+ musb_dma_controller_destroy = musb->ops->dma_exit;
+#endif
+
if (musb->ops->read_fifo)
musb->io.read_fifo = musb->ops->read_fifo;
else
@@ -2078,7 +2108,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_get_sync(musb->controller);
if (use_dma && dev->dma_mask) {
- musb->dma_controller = dma_controller_create(musb, musb->mregs);
+ musb->dma_controller =
+ musb_dma_controller_create(musb, musb->mregs);
if (IS_ERR(musb->dma_controller)) {
status = PTR_ERR(musb->dma_controller);
goto fail2_5;
@@ -2189,7 +2220,7 @@ fail3:
cancel_delayed_work_sync(&musb->finish_resume_work);
cancel_delayed_work_sync(&musb->deassert_reset_work);
if (musb->dma_controller)
- dma_controller_destroy(musb->dma_controller);
+ musb_dma_controller_destroy(musb->dma_controller);
fail2_5:
pm_runtime_put_sync(musb->controller);
@@ -2248,7 +2279,7 @@ static int musb_remove(struct platform_device *pdev)
musb_shutdown(pdev);
if (musb->dma_controller)
- dma_controller_destroy(musb->dma_controller);
+ musb_dma_controller_destroy(musb->dma_controller);
cancel_work_sync(&musb->irq_work);
cancel_delayed_work_sync(&musb->finish_resume_work);
@@ -2316,18 +2347,18 @@ static void musb_save_context(struct musb *musb)
musb_readb(epio, MUSB_RXINTERVAL);
musb->context.index_regs[i].txfunaddr =
- musb_read_txfunaddr(musb_base, i);
+ musb_read_txfunaddr(musb, i);
musb->context.index_regs[i].txhubaddr =
- musb_read_txhubaddr(musb_base, i);
+ musb_read_txhubaddr(musb, i);
musb->context.index_regs[i].txhubport =
- musb_read_txhubport(musb_base, i);
+ musb_read_txhubport(musb, i);
musb->context.index_regs[i].rxfunaddr =
- musb_read_rxfunaddr(musb_base, i);
+ musb_read_rxfunaddr(musb, i);
musb->context.index_regs[i].rxhubaddr =
- musb_read_rxhubaddr(musb_base, i);
+ musb_read_rxhubaddr(musb, i);
musb->context.index_regs[i].rxhubport =
- musb_read_rxhubport(musb_base, i);
+ musb_read_rxhubport(musb, i);
}
}
@@ -2335,7 +2366,6 @@ static void musb_restore_context(struct musb *musb)
{
int i;
void __iomem *musb_base = musb->mregs;
- void __iomem *ep_target_regs;
void __iomem *epio;
u8 power;
@@ -2396,21 +2426,18 @@ static void musb_restore_context(struct musb *musb)
musb_writeb(epio, MUSB_RXINTERVAL,
musb->context.index_regs[i].rxinterval);
- musb_write_txfunaddr(musb_base, i,
+ musb_write_txfunaddr(musb, i,
musb->context.index_regs[i].txfunaddr);
- musb_write_txhubaddr(musb_base, i,
+ musb_write_txhubaddr(musb, i,
musb->context.index_regs[i].txhubaddr);
- musb_write_txhubport(musb_base, i,
+ musb_write_txhubport(musb, i,
musb->context.index_regs[i].txhubport);
- ep_target_regs =
- musb_read_target_reg_base(i, musb_base);
-
- musb_write_rxfunaddr(ep_target_regs,
+ musb_write_rxfunaddr(musb, i,
musb->context.index_regs[i].rxfunaddr);
- musb_write_rxhubaddr(ep_target_regs,
+ musb_write_rxhubaddr(musb, i,
musb->context.index_regs[i].rxhubaddr);
- musb_write_rxhubport(ep_target_regs,
+ musb_write_rxhubport(musb, i,
musb->context.index_regs[i].rxhubport);
}
musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 3877249a8..4b886d0f6 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -67,7 +67,6 @@ struct musb_ep;
#include "musb_dma.h"
#include "musb_io.h"
-#include "musb_regs.h"
#include "musb_gadget.h"
#include <linux/usb/hcd.h>
@@ -157,6 +156,8 @@ struct musb_io;
* @writel: write 32 bits
* @read_fifo: reads the fifo
* @write_fifo: writes to fifo
+ * @dma_init: platform specific dma init function
+ * @dma_exit: platform specific dma exit function
* @init: turns on clocks, sets up platform-specific registers, etc
* @exit: undoes @init
* @set_mode: forcefully changes operating mode
@@ -165,6 +166,8 @@ struct musb_io;
* @vbus_status: returns vbus status if possible
* @set_vbus: forces vbus status
* @adjust_channel_params: pre check for standard dma channel_program func
+ * @pre_root_reset_end: called before the root usb port reset flag gets cleared
+ * @post_root_reset_end: called after the root usb port reset flag gets cleared
*/
struct musb_platform_ops {
@@ -187,6 +190,7 @@ struct musb_platform_ops {
void (*ep_select)(void __iomem *mbase, u8 epnum);
u16 fifo_mode;
u32 (*fifo_offset)(u8 epnum);
+ u32 (*busctl_offset)(u8 epnum, u16 offset);
u8 (*readb)(const void __iomem *addr, unsigned offset);
void (*writeb)(void __iomem *addr, unsigned offset, u8 data);
u16 (*readw)(const void __iomem *addr, unsigned offset);
@@ -195,6 +199,9 @@ struct musb_platform_ops {
void (*writel)(void __iomem *addr, unsigned offset, u32 data);
void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
+ struct dma_controller *
+ (*dma_init) (struct musb *musb, void __iomem *base);
+ void (*dma_exit)(struct dma_controller *c);
int (*set_mode)(struct musb *musb, u8 mode);
void (*try_idle)(struct musb *musb, unsigned long timeout);
int (*recover)(struct musb *musb);
@@ -205,6 +212,8 @@ struct musb_platform_ops {
int (*adjust_channel_params)(struct dma_channel *channel,
u16 packet_sz, u8 *mode,
dma_addr_t *dma_addr, u32 *len);
+ void (*pre_root_reset_end)(struct musb *musb);
+ void (*post_root_reset_end)(struct musb *musb);
};
/*
@@ -241,8 +250,6 @@ struct musb_hw_ep {
void __iomem *fifo_sync_va;
#endif
- void __iomem *target_regs;
-
/* currently scheduled peripheral endpoint */
struct musb_qh *in_qh;
struct musb_qh *out_qh;
@@ -437,6 +444,9 @@ struct musb {
#endif
};
+/* This must be included after struct musb is defined */
+#include "musb_regs.h"
+
static inline struct musb *gadget_to_musb(struct usb_gadget *g)
{
return container_of(g, struct musb, g);
@@ -590,4 +600,16 @@ static inline int musb_platform_exit(struct musb *musb)
return musb->ops->exit(musb);
}
+static inline void musb_platform_pre_root_reset_end(struct musb *musb)
+{
+ if (musb->ops->pre_root_reset_end)
+ musb->ops->pre_root_reset_end(musb);
+}
+
+static inline void musb_platform_post_root_reset_end(struct musb *musb)
+{
+ if (musb->ops->post_root_reset_end)
+ musb->ops->post_root_reset_end(musb);
+}
+
#endif /* __MUSB_CORE_H__ */
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index 8bd8c5e26..4d1b44c23 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -678,7 +678,7 @@ err:
return ret;
}
-void dma_controller_destroy(struct dma_controller *c)
+void cppi41_dma_controller_destroy(struct dma_controller *c)
{
struct cppi41_dma_controller *controller = container_of(c,
struct cppi41_dma_controller, controller);
@@ -687,9 +687,10 @@ void dma_controller_destroy(struct dma_controller *c)
cppi41_dma_controller_stop(controller);
kfree(controller);
}
+EXPORT_SYMBOL_GPL(cppi41_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb,
- void __iomem *base)
+struct dma_controller *
+cppi41_dma_controller_create(struct musb *musb, void __iomem *base)
{
struct cppi41_dma_controller *controller;
int ret = 0;
@@ -726,3 +727,4 @@ kzalloc_fail:
return ERR_PTR(ret);
return NULL;
}
+EXPORT_SYMBOL_GPL(cppi41_dma_controller_create);
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 78a283e9c..9b22d946c 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -191,9 +191,16 @@ static ssize_t musb_test_mode_write(struct file *file,
{
struct seq_file *s = file->private_data;
struct musb *musb = s->private;
- u8 test = 0;
+ u8 test;
char buf[18];
+ test = musb_readb(musb->mregs, MUSB_TESTMODE);
+ if (test) {
+ dev_err(musb->controller, "Error: test mode is already set. "
+ "Please do USB Bus Reset to start a new test.\n");
+ return count;
+ }
+
memset(buf, 0x00, sizeof(buf));
if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
@@ -238,6 +245,90 @@ static const struct file_operations musb_test_mode_fops = {
.release = single_release,
};
+static int musb_softconnect_show(struct seq_file *s, void *unused)
+{
+ struct musb *musb = s->private;
+ u8 reg;
+ int connect;
+
+ switch (musb->xceiv->otg->state) {
+ case OTG_STATE_A_HOST:
+ case OTG_STATE_A_WAIT_BCON:
+ reg = musb_readb(musb->mregs, MUSB_DEVCTL);
+ connect = reg & MUSB_DEVCTL_SESSION ? 1 : 0;
+ break;
+ default:
+ connect = -1;
+ }
+
+ seq_printf(s, "%d\n", connect);
+
+ return 0;
+}
+
+static int musb_softconnect_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, musb_softconnect_show, inode->i_private);
+}
+
+static ssize_t musb_softconnect_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ struct seq_file *s = file->private_data;
+ struct musb *musb = s->private;
+ char buf[2];
+ u8 reg;
+
+ memset(buf, 0x00, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ if (!strncmp(buf, "0", 1)) {
+ switch (musb->xceiv->otg->state) {
+ case OTG_STATE_A_HOST:
+ musb_root_disconnect(musb);
+ reg = musb_readb(musb->mregs, MUSB_DEVCTL);
+ reg &= ~MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, reg);
+ break;
+ default:
+ break;
+ }
+ } else if (!strncmp(buf, "1", 1)) {
+ switch (musb->xceiv->otg->state) {
+ case OTG_STATE_A_WAIT_BCON:
+ /*
+ * musb_save_context() called in musb_runtime_suspend()
+ * might cache devctl with SESSION bit cleared during
+ * soft-disconnect, so specifically set SESSION bit
+ * here to preserve it for musb_runtime_resume().
+ */
+ musb->context.devctl |= MUSB_DEVCTL_SESSION;
+ reg = musb_readb(musb->mregs, MUSB_DEVCTL);
+ reg |= MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, reg);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return count;
+}
+
+/*
+ * In host mode, connect/disconnect the bus without physically
+ * remove the devices.
+ */
+static const struct file_operations musb_softconnect_fops = {
+ .open = musb_softconnect_open,
+ .write = musb_softconnect_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
int musb_init_debugfs(struct musb *musb)
{
struct dentry *root;
@@ -264,6 +355,13 @@ int musb_init_debugfs(struct musb *musb)
goto err1;
}
+ file = debugfs_create_file("softconnect", S_IRUGO | S_IWUSR,
+ root, musb, &musb_softconnect_fops);
+ if (!file) {
+ ret = -ENOMEM;
+ goto err1;
+ }
+
musb->debugfs_root = root;
return 0;
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 1d44faa86..46357e183 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -68,16 +68,41 @@ struct musb_hw_ep;
#define is_dma_capable() (1)
#endif
-#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA)
-#define is_cppi_enabled() 1
+#ifdef CONFIG_USB_UX500_DMA
+#define musb_dma_ux500(musb) (musb->io.quirks & MUSB_DMA_UX500)
+#else
+#define musb_dma_ux500(musb) 0
+#endif
+
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+#define musb_dma_cppi41(musb) (musb->io.quirks & MUSB_DMA_CPPI41)
+#else
+#define musb_dma_cppi41(musb) 0
+#endif
+
+#ifdef CONFIG_USB_TI_CPPI_DMA
+#define musb_dma_cppi(musb) (musb->io.quirks & MUSB_DMA_CPPI)
#else
-#define is_cppi_enabled() 0
+#define musb_dma_cppi(musb) 0
#endif
#ifdef CONFIG_USB_TUSB_OMAP_DMA
-#define tusb_dma_omap() 1
+#define tusb_dma_omap(musb) (musb->io.quirks & MUSB_DMA_TUSB_OMAP)
+#else
+#define tusb_dma_omap(musb) 0
+#endif
+
+#ifdef CONFIG_USB_INVENTRA_DMA
+#define musb_dma_inventra(musb) (musb->io.quirks & MUSB_DMA_INVENTRA)
#else
-#define tusb_dma_omap() 0
+#define musb_dma_inventra(musb) 0
+#endif
+
+#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA)
+#define is_cppi_enabled(musb) \
+ (musb_dma_cppi(musb) || musb_dma_cppi41(musb))
+#else
+#define is_cppi_enabled(musb) 0
#endif
/* Anomaly 05000456 - USB Receive Interrupt Is Not Generated in DMA Mode 1
@@ -177,19 +202,41 @@ struct dma_controller {
extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
#ifdef CONFIG_MUSB_PIO_ONLY
-static inline struct dma_controller *dma_controller_create(struct musb *m,
- void __iomem *io)
+static inline struct dma_controller *
+musb_dma_controller_create(struct musb *m, void __iomem *io)
{
return NULL;
}
-static inline void dma_controller_destroy(struct dma_controller *d) { }
+static inline void musb_dma_controller_destroy(struct dma_controller *d) { }
#else
-extern struct dma_controller *dma_controller_create(struct musb *, void __iomem *);
+extern struct dma_controller *
+(*musb_dma_controller_create)(struct musb *, void __iomem *);
-extern void dma_controller_destroy(struct dma_controller *);
+extern void (*musb_dma_controller_destroy)(struct dma_controller *);
#endif
+/* Platform specific DMA functions */
+extern struct dma_controller *
+musbhs_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void musbhs_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+tusb_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void tusb_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+cppi_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void cppi_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+cppi41_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void cppi41_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+ux500_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void ux500_dma_controller_destroy(struct dma_controller *c);
+
#endif /* __MUSB_DMA_H__ */
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 65d931a28..1334a3de3 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -634,10 +634,14 @@ static void dsps_read_fifo32(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
static struct musb_platform_ops dsps_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_CPPI41 | MUSB_INDEXED_EP,
.init = dsps_musb_init,
.exit = dsps_musb_exit,
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+ .dma_init = cppi41_dma_controller_create,
+ .dma_exit = cppi41_dma_controller_destroy,
+#endif
.enable = dsps_musb_enable,
.disable = dsps_musb_disable,
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 4c481cd66..625d482f1 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -366,7 +366,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
}
#endif
- if (is_cppi_enabled()) {
+ if (is_cppi_enabled(musb)) {
/* program endpoint CSR first, then setup DMA */
csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY);
csr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE |
@@ -402,7 +402,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
musb_writew(epio, MUSB_TXCSR, csr);
/* invariant: prequest->buf is non-null */
}
- } else if (tusb_dma_omap())
+ } else if (tusb_dma_omap(musb))
use_dma = use_dma && c->channel_program(
musb_ep->dma, musb_ep->packet_sz,
request->zero,
@@ -489,6 +489,7 @@ void musb_g_tx(struct musb *musb, u8 epnum)
if (request) {
u8 is_dma = 0;
+ bool short_packet = false;
if (dma && (csr & MUSB_TXCSR_DMAENAB)) {
is_dma = 1;
@@ -507,15 +508,18 @@ void musb_g_tx(struct musb *musb, u8 epnum)
* First, maybe a terminating short packet. Some DMA
* engines might handle this by themselves.
*/
- if ((request->zero && request->length
+ if ((request->zero && request->length)
&& (request->length % musb_ep->packet_sz == 0)
&& (request->actual == request->length))
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
- || (is_dma && (!dma->desired_mode ||
+ short_packet = true;
+
+ if ((musb_dma_inventra(musb) || musb_dma_ux500(musb)) &&
+ (is_dma && (!dma->desired_mode ||
(request->actual &
- (musb_ep->packet_sz - 1))))
-#endif
- ) {
+ (musb_ep->packet_sz - 1)))))
+ short_packet = true;
+
+ if (short_packet) {
/*
* On DMA completion, FIFO may not be
* available yet...
@@ -595,7 +599,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
return;
}
- if (is_cppi_enabled() && is_buffer_mapped(req)) {
+ if (is_cppi_enabled(musb) && is_buffer_mapped(req)) {
struct dma_controller *c = musb->dma_controller;
struct dma_channel *channel = musb_ep->dma;
@@ -772,7 +776,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
fifo_count = min_t(unsigned, len, fifo_count);
#ifdef CONFIG_USB_TUSB_OMAP_DMA
- if (tusb_dma_omap() && is_buffer_mapped(req)) {
+ if (tusb_dma_omap(musb) && is_buffer_mapped(req)) {
struct dma_controller *c = musb->dma_controller;
struct dma_channel *channel = musb_ep->dma;
u32 dma_addr = request->dma + request->actual;
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index c3d5fc9df..26c65e66c 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -181,7 +181,7 @@ static inline void musb_h_tx_dma_start(struct musb_hw_ep *ep)
/* NOTE: no locks here; caller should lock and select EP */
txcsr = musb_readw(ep->regs, MUSB_TXCSR);
txcsr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_H_WZC_BITS;
- if (is_cppi_enabled())
+ if (is_cppi_enabled(ep->musb))
txcsr |= MUSB_TXCSR_DMAMODE;
musb_writew(ep->regs, MUSB_TXCSR, txcsr);
}
@@ -294,7 +294,7 @@ start:
if (!hw_ep->tx_channel)
musb_h_tx_start(hw_ep);
- else if (is_cppi_enabled() || tusb_dma_omap())
+ else if (is_cppi_enabled(musb) || tusb_dma_omap(musb))
musb_h_tx_dma_start(hw_ep);
}
}
@@ -555,8 +555,9 @@ musb_host_packet_rx(struct musb *musb, struct urb *urb, u8 epnum, u8 iso_err)
* the busy/not-empty tests are basically paranoia.
*/
static void
-musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
+musb_rx_reinit(struct musb *musb, struct musb_qh *qh, u8 epnum)
{
+ struct musb_hw_ep *ep = musb->endpoints + epnum;
u16 csr;
/* NOTE: we know the "rx" fifo reinit never triggers for ep0.
@@ -594,10 +595,9 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
/* target addr and (for multipoint) hub addr/port */
if (musb->is_multipoint) {
- musb_write_rxfunaddr(ep->target_regs, qh->addr_reg);
- musb_write_rxhubaddr(ep->target_regs, qh->h_addr_reg);
- musb_write_rxhubport(ep->target_regs, qh->h_port_reg);
-
+ musb_write_rxfunaddr(musb, epnum, qh->addr_reg);
+ musb_write_rxhubaddr(musb, epnum, qh->h_addr_reg);
+ musb_write_rxhubport(musb, epnum, qh->h_port_reg);
} else
musb_writeb(musb->mregs, MUSB_FADDR, qh->addr_reg);
@@ -617,23 +617,22 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
ep->rx_reinit = 0;
}
-static bool musb_tx_dma_program(struct dma_controller *dma,
+static int musb_tx_dma_set_mode_mentor(struct dma_controller *dma,
struct musb_hw_ep *hw_ep, struct musb_qh *qh,
- struct urb *urb, u32 offset, u32 length)
+ struct urb *urb, u32 offset,
+ u32 *length, u8 *mode)
{
struct dma_channel *channel = hw_ep->tx_channel;
void __iomem *epio = hw_ep->regs;
u16 pkt_size = qh->maxpacket;
u16 csr;
- u8 mode;
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
- if (length > channel->max_len)
- length = channel->max_len;
+ if (*length > channel->max_len)
+ *length = channel->max_len;
csr = musb_readw(epio, MUSB_TXCSR);
- if (length > pkt_size) {
- mode = 1;
+ if (*length > pkt_size) {
+ *mode = 1;
csr |= MUSB_TXCSR_DMAMODE | MUSB_TXCSR_DMAENAB;
/* autoset shouldn't be set in high bandwidth */
/*
@@ -649,15 +648,28 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
can_bulk_split(hw_ep->musb, qh->type)))
csr |= MUSB_TXCSR_AUTOSET;
} else {
- mode = 0;
+ *mode = 0;
csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE);
csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */
}
channel->desired_mode = mode;
musb_writew(epio, MUSB_TXCSR, csr);
-#else
- if (!is_cppi_enabled() && !tusb_dma_omap())
- return false;
+
+ return 0;
+}
+
+static int musb_tx_dma_set_mode_cppi_tusb(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ u32 offset,
+ u32 *length,
+ u8 *mode)
+{
+ struct dma_channel *channel = hw_ep->tx_channel;
+
+ if (!is_cppi_enabled(hw_ep->musb) && !tusb_dma_omap(hw_ep->musb))
+ return -ENODEV;
channel->actual_len = 0;
@@ -665,8 +677,28 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
* TX uses "RNDIS" mode automatically but needs help
* to identify the zero-length-final-packet case.
*/
- mode = (urb->transfer_flags & URB_ZERO_PACKET) ? 1 : 0;
-#endif
+ *mode = (urb->transfer_flags & URB_ZERO_PACKET) ? 1 : 0;
+
+ return 0;
+}
+
+static bool musb_tx_dma_program(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep, struct musb_qh *qh,
+ struct urb *urb, u32 offset, u32 length)
+{
+ struct dma_channel *channel = hw_ep->tx_channel;
+ u16 pkt_size = qh->maxpacket;
+ u8 mode;
+ int res;
+
+ if (musb_dma_inventra(hw_ep->musb) || musb_dma_ux500(hw_ep->musb))
+ res = musb_tx_dma_set_mode_mentor(dma, hw_ep, qh, urb,
+ offset, &length, &mode);
+ else
+ res = musb_tx_dma_set_mode_cppi_tusb(dma, hw_ep, qh, urb,
+ offset, &length, &mode);
+ if (res)
+ return false;
qh->segsize = length;
@@ -678,6 +710,9 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
if (!dma->channel_program(channel, pkt_size, mode,
urb->transfer_dma + offset, length)) {
+ void __iomem *epio = hw_ep->regs;
+ u16 csr;
+
dma->channel_release(channel);
hw_ep->tx_channel = NULL;
@@ -801,9 +836,9 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
/* target addr and (for multipoint) hub addr/port */
if (musb->is_multipoint) {
- musb_write_txfunaddr(mbase, epnum, qh->addr_reg);
- musb_write_txhubaddr(mbase, epnum, qh->h_addr_reg);
- musb_write_txhubport(mbase, epnum, qh->h_port_reg);
+ musb_write_txfunaddr(musb, epnum, qh->addr_reg);
+ musb_write_txhubaddr(musb, epnum, qh->h_addr_reg);
+ musb_write_txhubport(musb, epnum, qh->h_port_reg);
/* FIXME if !epnum, do the same for RX ... */
} else
musb_writeb(mbase, MUSB_FADDR, qh->addr_reg);
@@ -875,7 +910,7 @@ finish:
u16 csr;
if (hw_ep->rx_reinit) {
- musb_rx_reinit(musb, qh, hw_ep);
+ musb_rx_reinit(musb, qh, epnum);
/* init new state: toggle and NYET, maybe DMA later */
if (usb_gettoggle(urb->dev, qh->epnum, 0))
@@ -901,7 +936,7 @@ finish:
/* kick things off */
- if ((is_cppi_enabled() || tusb_dma_omap()) && dma_channel) {
+ if ((is_cppi_enabled(musb) || tusb_dma_omap(musb)) && dma_channel) {
/* Candidate for DMA */
dma_channel->actual_len = 0L;
qh->segsize = len;
@@ -1441,7 +1476,7 @@ done:
} else if ((usb_pipeisoc(pipe) || transfer_pending) && dma) {
if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb,
offset, length)) {
- if (is_cppi_enabled() || tusb_dma_omap())
+ if (is_cppi_enabled(musb) || tusb_dma_omap(musb))
musb_h_tx_dma_start(hw_ep);
return;
}
@@ -1498,9 +1533,47 @@ done:
MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
}
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+/* Seems to set up ISO for cppi41 and not advance len. See commit c57c41d */
+static int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ struct dma_channel *channel = hw_ep->tx_channel;
+ void __iomem *epio = hw_ep->regs;
+ dma_addr_t *buf;
+ u32 length, res;
+ u16 val;
-#ifdef CONFIG_USB_INVENTRA_DMA
+ buf = (void *)urb->iso_frame_desc[qh->iso_idx].offset +
+ (u32)urb->transfer_dma;
+
+ length = urb->iso_frame_desc[qh->iso_idx].length;
+ val = musb_readw(epio, MUSB_RXCSR);
+ val |= MUSB_RXCSR_DMAENAB;
+ musb_writew(hw_ep->regs, MUSB_RXCSR, val);
+
+ res = dma->channel_program(channel, qh->maxpacket, 0,
+ (u32)buf, length);
+
+ return res;
+}
+#else
+static inline int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ return false;
+}
+#endif
+
+#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
+ defined(CONFIG_USB_TI_CPPI41_DMA)
/* Host side RX (IN) using Mentor DMA works as follows:
submit_urb ->
- if queue was empty, ProgramEndpoint
@@ -1535,7 +1608,194 @@ done:
* thus be a great candidate for using mode 1 ... for all but the
* last packet of one URB's transfer.
*/
+static int musb_rx_dma_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ struct dma_channel *channel = hw_ep->rx_channel;
+ void __iomem *epio = hw_ep->regs;
+ u16 val;
+ int pipe;
+ bool done;
+
+ pipe = urb->pipe;
+
+ if (usb_pipeisoc(pipe)) {
+ struct usb_iso_packet_descriptor *d;
+
+ d = urb->iso_frame_desc + qh->iso_idx;
+ d->actual_length = len;
+
+ /* even if there was an error, we did the dma
+ * for iso_frame_desc->length
+ */
+ if (d->status != -EILSEQ && d->status != -EOVERFLOW)
+ d->status = 0;
+
+ if (++qh->iso_idx >= urb->number_of_packets) {
+ done = true;
+ } else {
+ /* REVISIT: Why ignore return value here? */
+ if (musb_dma_cppi41(hw_ep->musb))
+ done = musb_rx_dma_iso_cppi41(dma, hw_ep, qh,
+ urb, len);
+ done = false;
+ }
+
+ } else {
+ /* done if urb buffer is full or short packet is recd */
+ done = (urb->actual_length + len >=
+ urb->transfer_buffer_length
+ || channel->actual_len < qh->maxpacket
+ || channel->rx_packet_done);
+ }
+
+ /* send IN token for next packet, without AUTOREQ */
+ if (!done) {
+ val = musb_readw(epio, MUSB_RXCSR);
+ val |= MUSB_RXCSR_H_REQPKT;
+ musb_writew(epio, MUSB_RXCSR, MUSB_RXCSR_H_WZC_BITS | val);
+ }
+
+ return done;
+}
+
+/* Disadvantage of using mode 1:
+ * It's basically usable only for mass storage class; essentially all
+ * other protocols also terminate transfers on short packets.
+ *
+ * Details:
+ * An extra IN token is sent at the end of the transfer (due to AUTOREQ)
+ * If you try to use mode 1 for (transfer_buffer_length - 512), and try
+ * to use the extra IN token to grab the last packet using mode 0, then
+ * the problem is that you cannot be sure when the device will send the
+ * last packet and RxPktRdy set. Sometimes the packet is recd too soon
+ * such that it gets lost when RxCSR is re-set at the end of the mode 1
+ * transfer, while sometimes it is recd just a little late so that if you
+ * try to configure for mode 0 soon after the mode 1 transfer is
+ * completed, you will find rxcount 0. Okay, so you might think why not
+ * wait for an interrupt when the pkt is recd. Well, you won't get any!
+ */
+static int musb_rx_dma_in_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len,
+ u8 iso_err)
+{
+ struct musb *musb = hw_ep->musb;
+ void __iomem *epio = hw_ep->regs;
+ struct dma_channel *channel = hw_ep->rx_channel;
+ u16 rx_count, val;
+ int length, pipe, done;
+ dma_addr_t buf;
+
+ rx_count = musb_readw(epio, MUSB_RXCOUNT);
+ pipe = urb->pipe;
+
+ if (usb_pipeisoc(pipe)) {
+ int d_status = 0;
+ struct usb_iso_packet_descriptor *d;
+
+ d = urb->iso_frame_desc + qh->iso_idx;
+ if (iso_err) {
+ d_status = -EILSEQ;
+ urb->error_count++;
+ }
+ if (rx_count > d->length) {
+ if (d_status == 0) {
+ d_status = -EOVERFLOW;
+ urb->error_count++;
+ }
+ dev_dbg(musb->controller, "** OVERFLOW %d into %d\n",
+ rx_count, d->length);
+
+ length = d->length;
+ } else
+ length = rx_count;
+ d->status = d_status;
+ buf = urb->transfer_dma + d->offset;
+ } else {
+ length = rx_count;
+ buf = urb->transfer_dma + urb->actual_length;
+ }
+
+ channel->desired_mode = 0;
+#ifdef USE_MODE1
+ /* because of the issue below, mode 1 will
+ * only rarely behave with correct semantics.
+ */
+ if ((urb->transfer_flags & URB_SHORT_NOT_OK)
+ && (urb->transfer_buffer_length - urb->actual_length)
+ > qh->maxpacket)
+ channel->desired_mode = 1;
+ if (rx_count < hw_ep->max_packet_sz_rx) {
+ length = rx_count;
+ channel->desired_mode = 0;
+ } else {
+ length = urb->transfer_buffer_length;
+ }
+#endif
+
+ /* See comments above on disadvantages of using mode 1 */
+ val = musb_readw(epio, MUSB_RXCSR);
+ val &= ~MUSB_RXCSR_H_REQPKT;
+
+ if (channel->desired_mode == 0)
+ val &= ~MUSB_RXCSR_H_AUTOREQ;
+ else
+ val |= MUSB_RXCSR_H_AUTOREQ;
+ val |= MUSB_RXCSR_DMAENAB;
+
+ /* autoclear shouldn't be set in high bandwidth */
+ if (qh->hb_mult == 1)
+ val |= MUSB_RXCSR_AUTOCLEAR;
+
+ musb_writew(epio, MUSB_RXCSR, MUSB_RXCSR_H_WZC_BITS | val);
+
+ /* REVISIT if when actual_length != 0,
+ * transfer_buffer_length needs to be
+ * adjusted first...
+ */
+ done = dma->channel_program(channel, qh->maxpacket,
+ channel->desired_mode,
+ buf, length);
+
+ if (!done) {
+ dma->channel_release(channel);
+ hw_ep->rx_channel = NULL;
+ channel = NULL;
+ val = musb_readw(epio, MUSB_RXCSR);
+ val &= ~(MUSB_RXCSR_DMAENAB
+ | MUSB_RXCSR_H_AUTOREQ
+ | MUSB_RXCSR_AUTOCLEAR);
+ musb_writew(epio, MUSB_RXCSR, val);
+ }
+
+ return done;
+}
+#else
+static inline int musb_rx_dma_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ return false;
+}
+
+static inline int musb_rx_dma_in_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len,
+ u8 iso_err)
+{
+ return false;
+}
#endif
/*
@@ -1546,6 +1806,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
{
struct urb *urb;
struct musb_hw_ep *hw_ep = musb->endpoints + epnum;
+ struct dma_controller *c = musb->dma_controller;
void __iomem *epio = hw_ep->regs;
struct musb_qh *qh = hw_ep->in_qh;
size_t xfer_len;
@@ -1661,9 +1922,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
*/
/* FIXME this is _way_ too much in-line logic for Mentor DMA */
-
-#if !defined(CONFIG_USB_INVENTRA_DMA) && !defined(CONFIG_USB_UX500_DMA)
- if (rx_csr & MUSB_RXCSR_H_REQPKT) {
+ if (!musb_dma_inventra(musb) && !musb_dma_ux500(musb) &&
+ (rx_csr & MUSB_RXCSR_H_REQPKT)) {
/* REVISIT this happened for a while on some short reads...
* the cleanup still needs investigation... looks bad...
* and also duplicates dma cleanup code above ... plus,
@@ -1684,7 +1944,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
musb_writew(epio, MUSB_RXCSR,
MUSB_RXCSR_H_WZC_BITS | rx_csr);
}
-#endif
+
if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) {
xfer_len = dma->actual_len;
@@ -1694,67 +1954,18 @@ void musb_host_rx(struct musb *musb, u8 epnum)
| MUSB_RXCSR_RXPKTRDY);
musb_writew(hw_ep->regs, MUSB_RXCSR, val);
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
- defined(CONFIG_USB_TI_CPPI41_DMA)
- if (usb_pipeisoc(pipe)) {
- struct usb_iso_packet_descriptor *d;
-
- d = urb->iso_frame_desc + qh->iso_idx;
- d->actual_length = xfer_len;
-
- /* even if there was an error, we did the dma
- * for iso_frame_desc->length
- */
- if (d->status != -EILSEQ && d->status != -EOVERFLOW)
- d->status = 0;
-
- if (++qh->iso_idx >= urb->number_of_packets) {
- done = true;
- } else {
-#if defined(CONFIG_USB_TI_CPPI41_DMA)
- struct dma_controller *c;
- dma_addr_t *buf;
- u32 length, ret;
-
- c = musb->dma_controller;
- buf = (void *)
- urb->iso_frame_desc[qh->iso_idx].offset
- + (u32)urb->transfer_dma;
-
- length =
- urb->iso_frame_desc[qh->iso_idx].length;
-
- val |= MUSB_RXCSR_DMAENAB;
- musb_writew(hw_ep->regs, MUSB_RXCSR, val);
-
- ret = c->channel_program(dma, qh->maxpacket,
- 0, (u32) buf, length);
-#endif
- done = false;
- }
-
- } else {
- /* done if urb buffer is full or short packet is recd */
- done = (urb->actual_length + xfer_len >=
- urb->transfer_buffer_length
- || dma->actual_len < qh->maxpacket
- || dma->rx_packet_done);
- }
-
- /* send IN token for next packet, without AUTOREQ */
- if (!done) {
- val |= MUSB_RXCSR_H_REQPKT;
- musb_writew(epio, MUSB_RXCSR,
- MUSB_RXCSR_H_WZC_BITS | val);
+ if (musb_dma_inventra(musb) || musb_dma_ux500(musb) ||
+ musb_dma_cppi41(musb)) {
+ done = musb_rx_dma_inventra_cppi41(c, hw_ep, qh, urb, xfer_len);
+ dev_dbg(hw_ep->musb->controller,
+ "ep %d dma %s, rxcsr %04x, rxcount %d\n",
+ epnum, done ? "off" : "reset",
+ musb_readw(epio, MUSB_RXCSR),
+ musb_readw(epio, MUSB_RXCOUNT));
+ } else {
+ done = true;
}
- dev_dbg(musb->controller, "ep %d dma %s, rxcsr %04x, rxcount %d\n", epnum,
- done ? "off" : "reset",
- musb_readw(epio, MUSB_RXCSR),
- musb_readw(epio, MUSB_RXCOUNT));
-#else
- done = true;
-#endif
} else if (urb->status == -EINPROGRESS) {
/* if no errors, be sure a packet is ready for unloading */
if (unlikely(!(rx_csr & MUSB_RXCSR_RXPKTRDY))) {
@@ -1772,126 +1983,24 @@ void musb_host_rx(struct musb *musb, u8 epnum)
}
/* we are expecting IN packets */
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
- defined(CONFIG_USB_TI_CPPI41_DMA)
- if (dma) {
- struct dma_controller *c;
- u16 rx_count;
- int ret, length;
- dma_addr_t buf;
-
- rx_count = musb_readw(epio, MUSB_RXCOUNT);
-
- dev_dbg(musb->controller, "RX%d count %d, buffer 0x%llx len %d/%d\n",
- epnum, rx_count,
- (unsigned long long) urb->transfer_dma
- + urb->actual_length,
- qh->offset,
- urb->transfer_buffer_length);
-
- c = musb->dma_controller;
-
- if (usb_pipeisoc(pipe)) {
- int d_status = 0;
- struct usb_iso_packet_descriptor *d;
-
- d = urb->iso_frame_desc + qh->iso_idx;
-
- if (iso_err) {
- d_status = -EILSEQ;
- urb->error_count++;
- }
- if (rx_count > d->length) {
- if (d_status == 0) {
- d_status = -EOVERFLOW;
- urb->error_count++;
- }
- dev_dbg(musb->controller, "** OVERFLOW %d into %d\n",\
- rx_count, d->length);
-
- length = d->length;
- } else
- length = rx_count;
- d->status = d_status;
- buf = urb->transfer_dma + d->offset;
- } else {
- length = rx_count;
- buf = urb->transfer_dma +
- urb->actual_length;
- }
-
- dma->desired_mode = 0;
-#ifdef USE_MODE1
- /* because of the issue below, mode 1 will
- * only rarely behave with correct semantics.
- */
- if ((urb->transfer_flags &
- URB_SHORT_NOT_OK)
- && (urb->transfer_buffer_length -
- urb->actual_length)
- > qh->maxpacket)
- dma->desired_mode = 1;
- if (rx_count < hw_ep->max_packet_sz_rx) {
- length = rx_count;
- dma->desired_mode = 0;
- } else {
- length = urb->transfer_buffer_length;
- }
-#endif
-
-/* Disadvantage of using mode 1:
- * It's basically usable only for mass storage class; essentially all
- * other protocols also terminate transfers on short packets.
- *
- * Details:
- * An extra IN token is sent at the end of the transfer (due to AUTOREQ)
- * If you try to use mode 1 for (transfer_buffer_length - 512), and try
- * to use the extra IN token to grab the last packet using mode 0, then
- * the problem is that you cannot be sure when the device will send the
- * last packet and RxPktRdy set. Sometimes the packet is recd too soon
- * such that it gets lost when RxCSR is re-set at the end of the mode 1
- * transfer, while sometimes it is recd just a little late so that if you
- * try to configure for mode 0 soon after the mode 1 transfer is
- * completed, you will find rxcount 0. Okay, so you might think why not
- * wait for an interrupt when the pkt is recd. Well, you won't get any!
- */
-
- val = musb_readw(epio, MUSB_RXCSR);
- val &= ~MUSB_RXCSR_H_REQPKT;
-
- if (dma->desired_mode == 0)
- val &= ~MUSB_RXCSR_H_AUTOREQ;
+ if ((musb_dma_inventra(musb) || musb_dma_ux500(musb) ||
+ musb_dma_cppi41(musb)) && dma) {
+ dev_dbg(hw_ep->musb->controller,
+ "RX%d count %d, buffer 0x%llx len %d/%d\n",
+ epnum, musb_readw(epio, MUSB_RXCOUNT),
+ (unsigned long long) urb->transfer_dma
+ + urb->actual_length,
+ qh->offset,
+ urb->transfer_buffer_length);
+
+ done = musb_rx_dma_in_inventra_cppi41(c, hw_ep, qh,
+ urb, xfer_len,
+ iso_err);
+ if (done)
+ goto finish;
else
- val |= MUSB_RXCSR_H_AUTOREQ;
- val |= MUSB_RXCSR_DMAENAB;
-
- /* autoclear shouldn't be set in high bandwidth */
- if (qh->hb_mult == 1)
- val |= MUSB_RXCSR_AUTOCLEAR;
-
- musb_writew(epio, MUSB_RXCSR,
- MUSB_RXCSR_H_WZC_BITS | val);
-
- /* REVISIT if when actual_length != 0,
- * transfer_buffer_length needs to be
- * adjusted first...
- */
- ret = c->channel_program(
- dma, qh->maxpacket,
- dma->desired_mode, buf, length);
-
- if (!ret) {
- c->channel_release(dma);
- hw_ep->rx_channel = NULL;
- dma = NULL;
- val = musb_readw(epio, MUSB_RXCSR);
- val &= ~(MUSB_RXCSR_DMAENAB
- | MUSB_RXCSR_H_AUTOREQ
- | MUSB_RXCSR_AUTOCLEAR);
- musb_writew(epio, MUSB_RXCSR, val);
- }
+ dev_err(musb->controller, "error: rx_dma failed\n");
}
-#endif /* Mentor DMA */
if (!dma) {
unsigned int received_len;
@@ -2512,6 +2621,7 @@ static void musb_free_temp_buffer(struct urb *urb)
{
enum dma_data_direction dir;
struct musb_temp_buffer *temp;
+ size_t length;
if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER))
return;
@@ -2522,8 +2632,12 @@ static void musb_free_temp_buffer(struct urb *urb)
data);
if (dir == DMA_FROM_DEVICE) {
- memcpy(temp->old_xfer_buffer, temp->data,
- urb->transfer_buffer_length);
+ if (usb_pipeisoc(urb->pipe))
+ length = urb->transfer_buffer_length;
+ else
+ length = urb->actual_length;
+
+ memcpy(temp->old_xfer_buffer, temp->data, length);
}
urb->transfer_buffer = temp->old_xfer_buffer;
kfree(temp->kmalloc_ptr);
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index 8a57a6f4b..17a80ae20 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -47,6 +47,7 @@
* @fifo_offset: platform specific function to get fifo offset
* @read_fifo: platform specific function to read fifo
* @write_fifo: platform specific function to write fifo
+ * @busctl_offset: platform specific function to get busctl offset
*/
struct musb_io {
u32 quirks;
@@ -55,6 +56,7 @@ struct musb_io {
u32 (*fifo_offset)(u8 epnum);
void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
+ u32 (*busctl_offset)(u8 epnum, u16 offset);
};
/* Do not add new entries here, add them the struct musb_io instead */
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 11f0be074..cff5bcf0d 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -300,9 +300,6 @@
#define MUSB_RXHUBADDR 0x06
#define MUSB_RXHUBPORT 0x07
-#define MUSB_BUSCTL_OFFSET(_epnum, _offset) \
- (0x80 + (8*(_epnum)) + (_offset))
-
static inline void musb_write_txfifosz(void __iomem *mbase, u8 c_size)
{
musb_writeb(mbase, MUSB_TXFIFOSZ, c_size);
@@ -364,78 +361,84 @@ static inline u16 musb_read_hwvers(void __iomem *mbase)
return musb_readw(mbase, MUSB_HWVERS);
}
-static inline void __iomem *musb_read_target_reg_base(u8 i, void __iomem *mbase)
-{
- return (MUSB_BUSCTL_OFFSET(i, 0) + mbase);
-}
-
-static inline void musb_write_rxfunaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxfunaddr(struct musb *musb, u8 epnum,
u8 qh_addr_reg)
{
- musb_writeb(ep_target_regs, MUSB_RXFUNCADDR, qh_addr_reg);
+ musb_writeb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR),
+ qh_addr_reg);
}
-static inline void musb_write_rxhubaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubaddr(struct musb *musb, u8 epnum,
u8 qh_h_addr_reg)
{
- musb_writeb(ep_target_regs, MUSB_RXHUBADDR, qh_h_addr_reg);
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBADDR),
+ qh_h_addr_reg);
}
-static inline void musb_write_rxhubport(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubport(struct musb *musb, u8 epnum,
u8 qh_h_port_reg)
{
- musb_writeb(ep_target_regs, MUSB_RXHUBPORT, qh_h_port_reg);
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBPORT),
+ qh_h_port_reg);
}
-static inline void musb_write_txfunaddr(void __iomem *mbase, u8 epnum,
+static inline void musb_write_txfunaddr(struct musb *musb, u8 epnum,
u8 qh_addr_reg)
{
- musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR),
- qh_addr_reg);
+ musb_writeb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR),
+ qh_addr_reg);
}
-static inline void musb_write_txhubaddr(void __iomem *mbase, u8 epnum,
+static inline void musb_write_txhubaddr(struct musb *musb, u8 epnum,
u8 qh_addr_reg)
{
- musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR),
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBADDR),
qh_addr_reg);
}
-static inline void musb_write_txhubport(void __iomem *mbase, u8 epnum,
+static inline void musb_write_txhubport(struct musb *musb, u8 epnum,
u8 qh_h_port_reg)
{
- musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT),
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBPORT),
qh_h_port_reg);
}
-static inline u8 musb_read_rxfunaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_rxfunaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXFUNCADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR));
}
-static inline u8 musb_read_rxhubaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_rxhubaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXHUBADDR));
}
-static inline u8 musb_read_rxhubport(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_rxhubport(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBPORT));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXHUBPORT));
}
-static inline u8 musb_read_txfunaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txfunaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR));
}
-static inline u8 musb_read_txhubaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txhubaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXHUBADDR));
}
-static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txhubport(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXHUBPORT));
}
#else /* CONFIG_BLACKFIN */
@@ -556,22 +559,17 @@ static inline u16 musb_read_hwvers(void __iomem *mbase)
return MUSB_HWVERS_1900;
}
-static inline void __iomem *musb_read_target_reg_base(u8 i, void __iomem *mbase)
-{
- return NULL;
-}
-
-static inline void musb_write_rxfunaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxfunaddr(void __iomem *mbase, u8 epnum,
u8 qh_addr_req)
{
}
-static inline void musb_write_rxhubaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubaddr(void __iomem *mbase, u8 epnum,
u8 qh_h_addr_reg)
{
}
-static inline void musb_write_rxhubport(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubport(void __iomem *mbase, u8 epnum,
u8 qh_h_port_reg)
{
}
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 4731baca3..92d5f7186 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -195,8 +195,10 @@ void musb_port_reset(struct musb *musb, bool do_reset)
msecs_to_jiffies(50));
} else {
dev_dbg(musb->controller, "root port reset stopped\n");
+ musb_platform_pre_root_reset_end(musb);
musb_writeb(mbase, MUSB_POWER,
power & ~MUSB_POWER_RESET);
+ musb_platform_post_root_reset_end(musb);
power = musb_readb(mbase, MUSB_POWER);
if (power & MUSB_POWER_HSMODE) {
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index ab7ec09a8..7539c3188 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -357,7 +357,7 @@ done:
return retval;
}
-void dma_controller_destroy(struct dma_controller *c)
+void musbhs_dma_controller_destroy(struct dma_controller *c)
{
struct musb_dma_controller *controller = container_of(c,
struct musb_dma_controller, controller);
@@ -369,8 +369,10 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(controller);
}
+EXPORT_SYMBOL_GPL(musbhs_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *base)
+struct dma_controller *musbhs_dma_controller_create(struct musb *musb,
+ void __iomem *base)
{
struct musb_dma_controller *controller;
struct device *dev = musb->controller;
@@ -398,7 +400,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
if (request_irq(irq, dma_controller_irq, 0,
dev_name(musb->controller), &controller->controller)) {
dev_err(dev, "request_irq %d failed!\n", irq);
- dma_controller_destroy(&controller->controller);
+ musb_dma_controller_destroy(&controller->controller);
return NULL;
}
@@ -407,3 +409,4 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
return &controller->controller;
}
+EXPORT_SYMBOL_GPL(musbhs_dma_controller_create);
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index cc752d8c7..70f2b8a2e 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -493,6 +493,11 @@ static int omap2430_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops omap2430_ops = {
+ .quirks = MUSB_DMA_INVENTRA,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
.init = omap2430_musb_init,
.exit = omap2430_musb_exit,
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 3a5ffd575..df7c9f46b 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -890,7 +890,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci)
dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src);
real_dma_src = ~real_dma_src & dma_src;
- if (tusb_dma_omap() && real_dma_src) {
+ if (tusb_dma_omap(musb) && real_dma_src) {
int tx_source = (real_dma_src & 0xffff);
int i;
@@ -1181,7 +1181,7 @@ static int tusb_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops tusb_ops = {
- .quirks = MUSB_IN_TUSB,
+ .quirks = MUSB_DMA_TUSB_OMAP | MUSB_IN_TUSB,
.init = tusb_musb_init,
.exit = tusb_musb_exit,
@@ -1192,6 +1192,10 @@ static const struct musb_platform_ops tusb_ops = {
.writeb = tusb_writeb,
.read_fifo = tusb_read_fifo,
.write_fifo = tusb_write_fifo,
+#ifdef CONFIG_USB_TUSB_OMAP_DMA
+ .dma_init = tusb_dma_controller_create,
+ .dma_exit = tusb_dma_controller_destroy,
+#endif
.enable = tusb_musb_enable,
.disable = tusb_musb_disable,
diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h
index aec86c86c..72cdad23c 100644
--- a/drivers/usb/musb/tusb6010.h
+++ b/drivers/usb/musb/tusb6010.h
@@ -12,12 +12,6 @@
#ifndef __TUSB6010_H__
#define __TUSB6010_H__
-#ifdef CONFIG_USB_TUSB_OMAP_DMA
-#define tusb_dma_omap() 1
-#else
-#define tusb_dma_omap() 0
-#endif
-
/* VLYNQ control register. 32-bit at offset 0x000 */
#define TUSB_VLYNQ_CTRL 0x004
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index 3ce152c04..4c82077da 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -625,7 +625,7 @@ static void tusb_omap_dma_release(struct dma_channel *channel)
channel = NULL;
}
-void dma_controller_destroy(struct dma_controller *c)
+void tusb_dma_controller_destroy(struct dma_controller *c)
{
struct tusb_omap_dma *tusb_dma;
int i;
@@ -644,8 +644,10 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(tusb_dma);
}
+EXPORT_SYMBOL_GPL(tusb_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *base)
+struct dma_controller *
+tusb_dma_controller_create(struct musb *musb, void __iomem *base)
{
void __iomem *tbase = musb->ctrl_base;
struct tusb_omap_dma *tusb_dma;
@@ -701,7 +703,8 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
return &tusb_dma->controller;
cleanup:
- dma_controller_destroy(&tusb_dma->controller);
+ musb_dma_controller_destroy(&tusb_dma->controller);
out:
return NULL;
}
+EXPORT_SYMBOL_GPL(tusb_dma_controller_create);
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index abf727288..39168fe9b 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -188,7 +188,11 @@ static int ux500_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops ux500_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_UX500 | MUSB_INDEXED_EP,
+#ifdef CONFIG_USB_UX500_DMA
+ .dma_init = ux500_dma_controller_create,
+ .dma_exit = ux500_dma_controller_destroy,
+#endif
.init = ux500_musb_init,
.exit = ux500_musb_exit,
.fifo_mode = 5,
@@ -338,7 +342,7 @@ static int ux500_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int ux500_suspend(struct device *dev)
{
struct ux500_glue *glue = dev_get_drvdata(dev);
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index e93845c26..d0b6a1cd7 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -359,7 +359,7 @@ static int ux500_dma_controller_start(struct ux500_dma_controller *controller)
return 0;
}
-void dma_controller_destroy(struct dma_controller *c)
+void ux500_dma_controller_destroy(struct dma_controller *c)
{
struct ux500_dma_controller *controller = container_of(c,
struct ux500_dma_controller, controller);
@@ -367,9 +367,10 @@ void dma_controller_destroy(struct dma_controller *c)
ux500_dma_controller_stop(controller);
kfree(controller);
}
+EXPORT_SYMBOL_GPL(ux500_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb,
- void __iomem *base)
+struct dma_controller *
+ux500_dma_controller_create(struct musb *musb, void __iomem *base)
{
struct ux500_dma_controller *controller;
struct platform_device *pdev = to_platform_device(musb->controller);
@@ -407,3 +408,4 @@ plat_get_fail:
kzalloc_fail:
return NULL;
}
+EXPORT_SYMBOL_GPL(ux500_dma_controller_create);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-10-30 17:20:00 +0000