#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/prefetch.h>
+#include <linux/io.h>
#include <asm/byteorder.h>
-#include <asm/io.h>
#include <asm/irq.h>
#include <asm/unaligned.h>
#define USE_RDK_LEDS /* GPIO pins control three LEDs */
-static const char driver_name [] = "net2280";
-static const char driver_desc [] = DRIVER_DESC;
+static const char driver_name[] = "net2280";
+static const char driver_desc[] = DRIVER_DESC;
static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
-static const char ep0name [] = "ep0";
-static const char *const ep_name [] = {
+static const char ep0name[] = "ep0";
+static const char *const ep_name[] = {
ep0name,
"ep-a", "ep-b", "ep-c", "ep-d",
"ep-e", "ep-f", "ep-g", "ep-h",
static bool use_msi = true;
/* "modprobe net2280 use_dma=n" etc */
-module_param (use_dma, bool, S_IRUGO);
-module_param (use_dma_chaining, bool, S_IRUGO);
+module_param(use_dma, bool, S_IRUGO);
+module_param(use_dma_chaining, bool, S_IRUGO);
module_param(use_msi, bool, S_IRUGO);
/* mode 0 == ep-{a,b,c,d} 1K fifo each
* mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
* mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable
*/
-static ushort fifo_mode = 0;
+static ushort fifo_mode;
/* "modprobe net2280 fifo_mode=1" etc */
module_param (fifo_mode, ushort, 0644);
static bool enable_suspend;
/* "modprobe net2280 enable_suspend=1" etc */
-module_param (enable_suspend, bool, S_IRUGO);
+module_param(enable_suspend, bool, S_IRUGO);
/* force full-speed operation */
static bool full_speed;
#define DIR_STRING(bAddress) (((bAddress) & USB_DIR_IN) ? "in" : "out")
-#if defined(CONFIG_USB_GADGET_DEBUG_FILES) || defined (DEBUG)
-static char *type_string (u8 bmAttributes)
+static char *type_string(u8 bmAttributes)
{
switch ((bmAttributes) & USB_ENDPOINT_XFERTYPE_MASK) {
case USB_ENDPOINT_XFER_BULK: return "bulk";
}
return "control";
}
-#endif
#include "net2280.h"
}
static int
-net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
+net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
{
struct net2280 *dev;
struct net2280_ep *ep;
unsigned long flags;
static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 };
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || !desc || ep->desc || _ep->name == ep0name
|| desc->bDescriptorType != USB_DT_ENDPOINT)
return -EINVAL;
}
/* sanity check ep-e/ep-f since their fifos are small */
- max = usb_endpoint_maxp (desc) & 0x1fff;
+ max = usb_endpoint_maxp(desc) & 0x1fff;
if (ep->num > 4 && max > 64 &&
(dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY))
return -ERANGE;
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->lock, flags);
_ep->maxpacket = max & 0x7ff;
ep->desc = desc;
* use it instead of troublesome (non-bulk) multi-packet DMA.
*/
if (ep->dma && (max % 4) != 0 && use_dma_chaining) {
- DEBUG (ep->dev, "%s, no dma for maxpacket %d\n",
+ DEBUG(ep->dev, "%s, no dma for maxpacket %d\n",
ep->ep.name, ep->ep.maxpacket);
ep->dma = NULL;
}
return -ERANGE;
}
}
- ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC) ? 1 : 0;
+ ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC);
/* Enable this endpoint */
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY) {
tmp <<= ENDPOINT_TYPE;
tmp = BIT(DATA_PACKET_RECEIVED_INTERRUPT_ENABLE) |
BIT(DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE);
if (dev->pdev->device == 0x2280)
- tmp |= readl (&ep->regs->ep_irqenb);
- writel (tmp, &ep->regs->ep_irqenb);
+ tmp |= readl(&ep->regs->ep_irqenb);
+ writel(tmp, &ep->regs->ep_irqenb);
} else { /* dma, per-request */
tmp = BIT((8 + ep->num)); /* completion */
- tmp |= readl (&dev->regs->pciirqenb1);
- writel (tmp, &dev->regs->pciirqenb1);
+ tmp |= readl(&dev->regs->pciirqenb1);
+ writel(tmp, &dev->regs->pciirqenb1);
/* for short OUT transfers, dma completions can't
* advance the queue; do it pio-style, by hand.
*/
if ((desc->bEndpointAddress & USB_DIR_IN) == 0) {
tmp = BIT(SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE);
- writel (tmp, &ep->regs->ep_irqenb);
+ writel(tmp, &ep->regs->ep_irqenb);
enable_pciirqenb(ep);
}
}
tmp = desc->bEndpointAddress;
- DEBUG (dev, "enabled %s (ep%d%s-%s) %s max %04x\n",
- _ep->name, tmp & 0x0f, DIR_STRING (tmp),
- type_string (desc->bmAttributes),
+ DEBUG(dev, "enabled %s (ep%d%s-%s) %s max %04x\n",
+ _ep->name, tmp & 0x0f, DIR_STRING(tmp),
+ type_string(desc->bmAttributes),
ep->dma ? "dma" : "pio", max);
/* pci writes may still be posted */
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
-static int handshake (u32 __iomem *ptr, u32 mask, u32 done, int usec)
+static int handshake(u32 __iomem *ptr, u32 mask, u32 done, int usec)
{
u32 result;
do {
- result = readl (ptr);
+ result = readl(ptr);
if (result == ~(u32)0) /* "device unplugged" */
return -ENODEV;
result &= mask;
if (result == done)
return 0;
- udelay (1);
+ udelay(1);
usec--;
} while (usec > 0);
return -ETIMEDOUT;
u32 tmp;
ep->desc = NULL;
- INIT_LIST_HEAD (&ep->queue);
+ INIT_LIST_HEAD(&ep->queue);
usb_ep_set_maxpacket_limit(&ep->ep, ~0);
ep->ep.ops = &net2280_ep_ops;
/* disable the dma, irqs, endpoint... */
if (ep->dma) {
- writel (0, &ep->dma->dmactl);
+ writel(0, &ep->dma->dmactl);
writel(BIT(DMA_SCATTER_GATHER_DONE_INTERRUPT) |
BIT(DMA_TRANSACTION_DONE_INTERRUPT) |
BIT(DMA_ABORT),
&ep->dma->dmastat);
- tmp = readl (®s->pciirqenb0);
+ tmp = readl(®s->pciirqenb0);
tmp &= ~BIT(ep->num);
- writel (tmp, ®s->pciirqenb0);
+ writel(tmp, ®s->pciirqenb0);
} else {
- tmp = readl (®s->pciirqenb1);
+ tmp = readl(®s->pciirqenb1);
tmp &= ~BIT((8 + ep->num)); /* completion */
- writel (tmp, ®s->pciirqenb1);
+ writel(tmp, ®s->pciirqenb1);
}
- writel (0, &ep->regs->ep_irqenb);
+ writel(0, &ep->regs->ep_irqenb);
/* init to our chosen defaults, notably so that we NAK OUT
* packets until the driver queues a read (+note erratum 0112)
tmp |= BIT(CLEAR_ENDPOINT_TOGGLE) |
BIT(CLEAR_ENDPOINT_HALT);
}
- writel (tmp, &ep->regs->ep_rsp);
+ writel(tmp, &ep->regs->ep_rsp);
/* scrub most status bits, and flush any fifo state */
if (ep->dev->pdev->device == 0x2280)
BIT(DATA_IN_TOKEN_INTERRUPT), &ep->regs->ep_stat);
}
-static void nuke (struct net2280_ep *);
+static void nuke(struct net2280_ep *);
-static int net2280_disable (struct usb_ep *_ep)
+static int net2280_disable(struct usb_ep *_ep)
{
struct net2280_ep *ep;
unsigned long flags;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || !ep->desc || _ep->name == ep0name)
return -EINVAL;
- spin_lock_irqsave (&ep->dev->lock, flags);
- nuke (ep);
+ spin_lock_irqsave(&ep->dev->lock, flags);
+ nuke(ep);
if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX)
ep_reset_338x(ep->dev->regs, ep);
else
ep_reset_228x(ep->dev->regs, ep);
- VDEBUG (ep->dev, "disabled %s %s\n",
+ VDEBUG(ep->dev, "disabled %s %s\n",
ep->dma ? "dma" : "pio", _ep->name);
/* synch memory views with the device */
(void)readl(&ep->cfg->ep_cfg);
if (use_dma && !ep->dma && ep->num >= 1 && ep->num <= 4)
- ep->dma = &ep->dev->dma [ep->num - 1];
+ ep->dma = &ep->dev->dma[ep->num - 1];
- spin_unlock_irqrestore (&ep->dev->lock, flags);
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
return 0;
}
/*-------------------------------------------------------------------------*/
-static struct usb_request *
-net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags)
+static struct usb_request
+*net2280_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
{
struct net2280_ep *ep;
struct net2280_request *req;
if (!_ep)
return NULL;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
req = kzalloc(sizeof(*req), gfp_flags);
if (!req)
return NULL;
- INIT_LIST_HEAD (&req->queue);
+ INIT_LIST_HEAD(&req->queue);
/* this dma descriptor may be swapped with the previous dummy */
if (ep->dma) {
struct net2280_dma *td;
- td = pci_pool_alloc (ep->dev->requests, gfp_flags,
+ td = pci_pool_alloc(ep->dev->requests, gfp_flags,
&req->td_dma);
if (!td) {
- kfree (req);
+ kfree(req);
return NULL;
}
td->dmacount = 0; /* not VALID */
return &req->req;
}
-static void
-net2280_free_request (struct usb_ep *_ep, struct usb_request *_req)
+static void net2280_free_request(struct usb_ep *_ep, struct usb_request *_req)
{
struct net2280_ep *ep;
struct net2280_request *req;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || !_req)
return;
- req = container_of (_req, struct net2280_request, req);
- WARN_ON (!list_empty (&req->queue));
+ req = container_of(_req, struct net2280_request, req);
+ WARN_ON(!list_empty(&req->queue));
if (req->td)
- pci_pool_free (ep->dev->requests, req->td, req->td_dma);
- kfree (req);
+ pci_pool_free(ep->dev->requests, req->td, req->td_dma);
+ kfree(req);
}
/*-------------------------------------------------------------------------*/
* at a time, but this code is simpler because it knows it only writes
* one packet. ep-a..ep-d should use dma instead.
*/
-static void
-write_fifo (struct net2280_ep *ep, struct usb_request *req)
+static void write_fifo(struct net2280_ep *ep, struct usb_request *req)
{
struct net2280_ep_regs __iomem *regs = ep->regs;
u8 *buf;
if (req) {
buf = req->buf + req->actual;
- prefetch (buf);
+ prefetch(buf);
total = req->length - req->actual;
} else {
total = 0;
if (count > total) /* min() cannot be used on a bitfield */
count = total;
- VDEBUG (ep->dev, "write %s fifo (IN) %d bytes%s req %p\n",
+ VDEBUG(ep->dev, "write %s fifo (IN) %d bytes%s req %p\n",
ep->ep.name, count,
(count != ep->ep.maxpacket) ? " (short)" : "",
req);
* should normally be full (4 bytes) and successive partial
* lines are ok only in certain cases.
*/
- tmp = get_unaligned ((u32 *)buf);
- cpu_to_le32s (&tmp);
- writel (tmp, ®s->ep_data);
+ tmp = get_unaligned((u32 *)buf);
+ cpu_to_le32s(&tmp);
+ writel(tmp, ®s->ep_data);
buf += 4;
count -= 4;
}
* when maxpacket is not a multiple of 4 bytes.
*/
if (count || total < ep->ep.maxpacket) {
- tmp = count ? get_unaligned ((u32 *)buf) : count;
- cpu_to_le32s (&tmp);
- set_fifo_bytecount (ep, count & 0x03);
- writel (tmp, ®s->ep_data);
+ tmp = count ? get_unaligned((u32 *)buf) : count;
+ cpu_to_le32s(&tmp);
+ set_fifo_bytecount(ep, count & 0x03);
+ writel(tmp, ®s->ep_data);
}
/* pci writes may still be posted */
* NOTE: also used in cases where that erratum doesn't apply:
* where the host wrote "too much" data to us.
*/
-static void out_flush (struct net2280_ep *ep)
+static void out_flush(struct net2280_ep *ep)
{
u32 __iomem *statp;
u32 tmp;
- ASSERT_OUT_NAKING (ep);
+ ASSERT_OUT_NAKING(ep);
statp = &ep->regs->ep_stat;
writel(BIT(DATA_OUT_PING_TOKEN_INTERRUPT) |
BIT(DATA_PACKET_RECEIVED_INTERRUPT)
, statp);
writel(BIT(FIFO_FLUSH), statp);
- mb ();
- tmp = readl (statp);
+ /* Make sure that stap is written */
+ mb();
+ tmp = readl(statp);
if (tmp & BIT(DATA_OUT_PING_TOKEN_INTERRUPT)
/* high speed did bulk NYET; fifo isn't filling */
&& ep->dev->gadget.speed == USB_SPEED_FULL) {
* for ep-a..ep-d this will read multiple packets out when they
* have been accepted.
*/
-static int
-read_fifo (struct net2280_ep *ep, struct net2280_request *req)
+static int read_fifo(struct net2280_ep *ep, struct net2280_request *req)
{
struct net2280_ep_regs __iomem *regs = ep->regs;
u8 *buf = req->req.buf + req->req.actual;
*/
if (ep->dev->chiprev == 0x0100
&& ep->dev->gadget.speed == USB_SPEED_FULL) {
- udelay (1);
- tmp = readl (&ep->regs->ep_stat);
+ udelay(1);
+ tmp = readl(&ep->regs->ep_stat);
if ((tmp & BIT(NAK_OUT_PACKETS)))
cleanup = 1;
else if ((tmp & BIT(FIFO_FULL))) {
- start_out_naking (ep);
+ start_out_naking(ep);
prevent = 1;
}
/* else: hope we don't see the problem */
/* never overflow the rx buffer. the fifo reads packets until
* it sees a short one; we might not be ready for them all.
*/
- prefetchw (buf);
- count = readl (®s->ep_avail);
- if (unlikely (count == 0)) {
- udelay (1);
- tmp = readl (&ep->regs->ep_stat);
- count = readl (®s->ep_avail);
+ prefetchw(buf);
+ count = readl(®s->ep_avail);
+ if (unlikely(count == 0)) {
+ udelay(1);
+ tmp = readl(&ep->regs->ep_stat);
+ count = readl(®s->ep_avail);
/* handled that data already? */
if (count == 0 && (tmp & BIT(NAK_OUT_PACKETS)) == 0)
return 0;
if (count > tmp) {
/* as with DMA, data overflow gets flushed */
if ((tmp % ep->ep.maxpacket) != 0) {
- ERROR (ep->dev,
+ ERROR(ep->dev,
"%s out fifo %d bytes, expected %d\n",
ep->ep.name, count, tmp);
req->req.status = -EOVERFLOW;
is_short = (count == 0) || ((count % ep->ep.maxpacket) != 0);
- VDEBUG (ep->dev, "read %s fifo (OUT) %d bytes%s%s%s req %p %d/%d\n",
+ VDEBUG(ep->dev, "read %s fifo (OUT) %d bytes%s%s%s req %p %d/%d\n",
ep->ep.name, count, is_short ? " (short)" : "",
cleanup ? " flush" : "", prevent ? " nak" : "",
req, req->req.actual, req->req.length);
while (count >= 4) {
- tmp = readl (®s->ep_data);
- cpu_to_le32s (&tmp);
- put_unaligned (tmp, (u32 *)buf);
+ tmp = readl(®s->ep_data);
+ cpu_to_le32s(&tmp);
+ put_unaligned(tmp, (u32 *)buf);
buf += 4;
count -= 4;
}
if (count) {
- tmp = readl (®s->ep_data);
+ tmp = readl(®s->ep_data);
/* LE conversion is implicit here: */
do {
*buf++ = (u8) tmp;
} while (--count);
}
if (cleanup)
- out_flush (ep);
+ out_flush(ep);
if (prevent) {
writel(BIT(CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
- (void) readl (&ep->regs->ep_rsp);
+ (void) readl(&ep->regs->ep_rsp);
}
return is_short || ((req->req.actual == req->req.length)
}
/* fill out dma descriptor to match a given request */
-static void
-fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid)
+static void fill_dma_desc(struct net2280_ep *ep,
+ struct net2280_request *req, int valid)
{
struct net2280_dma *td = req->td;
u32 dmacount = req->req.length;
td->dmaaddr = cpu_to_le32 (req->req.dma);
/* 2280 may be polling VALID_BIT through ep->dma->dmadesc */
- wmb ();
+ wmb();
td->dmacount = cpu_to_le32(dmacount);
}
/* erratum 0116 workaround part 2 (no AUTOSTART) */
BIT(DMA_ENABLE);
-static inline void spin_stop_dma (struct net2280_dma_regs __iomem *dma)
+static inline void spin_stop_dma(struct net2280_dma_regs __iomem *dma)
{
handshake(&dma->dmactl, BIT(DMA_ENABLE), 0, 50);
}
-static inline void stop_dma (struct net2280_dma_regs __iomem *dma)
+static inline void stop_dma(struct net2280_dma_regs __iomem *dma)
{
writel(readl(&dma->dmactl) & ~BIT(DMA_ENABLE), &dma->dmactl);
- spin_stop_dma (dma);
+ spin_stop_dma(dma);
}
-static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma)
+static void start_queue(struct net2280_ep *ep, u32 dmactl, u32 td_dma)
{
struct net2280_dma_regs __iomem *dma = ep->dma;
unsigned int tmp = BIT(VALID_BIT) | (ep->is_in << DMA_DIRECTION);
if (ep->dev->pdev->device != 0x2280)
tmp |= BIT(END_OF_CHAIN);
- writel (tmp, &dma->dmacount);
- writel (readl (&dma->dmastat), &dma->dmastat);
+ writel(tmp, &dma->dmacount);
+ writel(readl(&dma->dmastat), &dma->dmastat);
- writel (td_dma, &dma->dmadesc);
+ writel(td_dma, &dma->dmadesc);
if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX)
dmactl |= BIT(DMA_REQUEST_OUTSTANDING);
- writel (dmactl, &dma->dmactl);
+ writel(dmactl, &dma->dmactl);
/* erratum 0116 workaround part 3: pci arbiter away from net2280 */
- (void) readl (&ep->dev->pci->pcimstctl);
+ (void) readl(&ep->dev->pci->pcimstctl);
writel(BIT(DMA_START), &dma->dmastat);
if (!ep->is_in)
- stop_out_naking (ep);
+ stop_out_naking(ep);
}
-static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
+static void start_dma(struct net2280_ep *ep, struct net2280_request *req)
{
u32 tmp;
struct net2280_dma_regs __iomem *dma = ep->dma;
/* on this path we "know" there's no dma active (yet) */
WARN_ON(readl(&dma->dmactl) & BIT(DMA_ENABLE));
- writel (0, &ep->dma->dmactl);
+ writel(0, &ep->dma->dmactl);
/* previous OUT packet might have been short */
- if (!ep->is_in && ((tmp = readl (&ep->regs->ep_stat))
- & BIT(NAK_OUT_PACKETS)) != 0) {
+ if (!ep->is_in && (readl(&ep->regs->ep_stat) &
+ BIT(NAK_OUT_PACKETS))) {
writel(BIT(SHORT_PACKET_TRANSFERRED_INTERRUPT),
&ep->regs->ep_stat);
- tmp = readl (&ep->regs->ep_avail);
+ tmp = readl(&ep->regs->ep_avail);
if (tmp) {
- writel (readl (&dma->dmastat), &dma->dmastat);
+ writel(readl(&dma->dmastat), &dma->dmastat);
/* transfer all/some fifo data */
- writel (req->req.dma, &dma->dmaaddr);
- tmp = min (tmp, req->req.length);
+ writel(req->req.dma, &dma->dmaaddr);
+ tmp = min(tmp, req->req.length);
/* dma irq, faking scatterlist status */
- req->td->dmacount = cpu_to_le32 (req->req.length - tmp);
+ req->td->dmacount = cpu_to_le32(req->req.length - tmp);
writel(BIT(DMA_DONE_INTERRUPT_ENABLE)
| tmp, &dma->dmacount);
req->td->dmadesc = 0;
* (zero length) unless the driver explicitly said to do that.
*/
if (ep->is_in) {
- if (likely ((req->req.length % ep->ep.maxpacket) != 0
- || req->req.zero)) {
+ if (likely((req->req.length % ep->ep.maxpacket) ||
+ req->req.zero)){
tmp |= BIT(DMA_FIFO_VALIDATE);
ep->in_fifo_validate = 1;
} else
/* init req->td, pointing to the current dummy */
req->td->dmadesc = cpu_to_le32 (ep->td_dma);
- fill_dma_desc (ep, req, 1);
+ fill_dma_desc(ep, req, 1);
if (!use_dma_chaining)
req->td->dmacount |= cpu_to_le32(BIT(END_OF_CHAIN));
- start_queue (ep, tmp, req->td_dma);
+ start_queue(ep, tmp, req->td_dma);
}
static inline void resume_dma(struct net2280_ep *ep)
}
static inline void
-queue_dma (struct net2280_ep *ep, struct net2280_request *req, int valid)
+queue_dma(struct net2280_ep *ep, struct net2280_request *req, int valid)
{
struct net2280_dma *end;
dma_addr_t tmp;
end->dmadesc = cpu_to_le32 (ep->td_dma);
- fill_dma_desc (ep, req, valid);
+ fill_dma_desc(ep, req, valid);
}
static void
-done (struct net2280_ep *ep, struct net2280_request *req, int status)
+done(struct net2280_ep *ep, struct net2280_request *req, int status)
{
struct net2280 *dev;
unsigned stopped = ep->stopped;
- list_del_init (&req->queue);
+ list_del_init(&req->queue);
if (req->req.status == -EINPROGRESS)
req->req.status = status;
usb_gadget_unmap_request(&dev->gadget, &req->req, ep->is_in);
if (status && status != -ESHUTDOWN)
- VDEBUG (dev, "complete %s req %p stat %d len %u/%u\n",
+ VDEBUG(dev, "complete %s req %p stat %d len %u/%u\n",
ep->ep.name, &req->req, status,
req->req.actual, req->req.length);
/* don't modify queue heads during completion callback */
ep->stopped = 1;
- spin_unlock (&dev->lock);
- req->req.complete (&ep->ep, &req->req);
- spin_lock (&dev->lock);
+ spin_unlock(&dev->lock);
+ req->req.complete(&ep->ep, &req->req);
+ spin_lock(&dev->lock);
ep->stopped = stopped;
}
/*-------------------------------------------------------------------------*/
static int
-net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
+net2280_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
{
struct net2280_request *req;
struct net2280_ep *ep;
/* we always require a cpu-view buffer, so that we can
* always use pio (as fallback or whatever).
*/
- req = container_of (_req, struct net2280_request, req);
- if (!_req || !_req->complete || !_req->buf
- || !list_empty (&req->queue))
+ req = container_of(_req, struct net2280_request, req);
+ if (!_req || !_req->complete || !_req->buf ||
+ !list_empty(&req->queue))
return -EINVAL;
if (_req->length > (~0 & DMA_BYTE_COUNT_MASK))
return -EDOM;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || (!ep->desc && ep->num != 0))
return -EINVAL;
dev = ep->dev;
}
#if 0
- VDEBUG (dev, "%s queue req %p, len %d buf %p\n",
+ VDEBUG(dev, "%s queue req %p, len %d buf %p\n",
_ep->name, _req, _req->length, _req->buf);
#endif
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->lock, flags);
_req->status = -EINPROGRESS;
_req->actual = 0;
/* kickstart this i/o queue? */
- if (list_empty (&ep->queue) && !ep->stopped) {
+ if (list_empty(&ep->queue) && !ep->stopped) {
/* DMA request while EP halted */
if (ep->dma &&
(readl(&ep->regs->ep_rsp) & BIT(CLEAR_ENDPOINT_HALT)) &&
}
/* use DMA if the endpoint supports it, else pio */
else if (ep->dma)
- start_dma (ep, req);
+ start_dma(ep, req);
else {
/* maybe there's no control data, just status ack */
if (ep->num == 0 && _req->length == 0) {
- allow_status (ep);
- done (ep, req, 0);
- VDEBUG (dev, "%s status ack\n", ep->ep.name);
+ allow_status(ep);
+ done(ep, req, 0);
+ VDEBUG(dev, "%s status ack\n", ep->ep.name);
goto done;
}
/* PIO ... stuff the fifo, or unblock it. */
if (ep->is_in)
- write_fifo (ep, _req);
- else if (list_empty (&ep->queue)) {
+ write_fifo(ep, _req);
+ else if (list_empty(&ep->queue)) {
u32 s;
/* OUT FIFO might have packet(s) buffered */
- s = readl (&ep->regs->ep_stat);
+ s = readl(&ep->regs->ep_stat);
if ((s & BIT(FIFO_EMPTY)) == 0) {
/* note: _req->short_not_ok is
* ignored here since PIO _always_
* _req->status doesn't change for
* short reads (only _req->actual)
*/
- if (read_fifo (ep, req)) {
- done (ep, req, 0);
- if (ep->num == 0)
- allow_status (ep);
+ if (read_fifo(ep, req) &&
+ ep->num == 0) {
+ done(ep, req, 0);
+ allow_status(ep);
/* don't queue it */
req = NULL;
+ } else if (read_fifo(ep, req) &&
+ ep->num != 0) {
+ done(ep, req, 0);
+ req = NULL;
} else
- s = readl (&ep->regs->ep_stat);
+ s = readl(&ep->regs->ep_stat);
}
/* don't NAK, let the fifo fill */
/* preventing magic zlps is per-engine state, not
* per-transfer; irq logic must recover hiccups.
*/
- expect = likely (req->req.zero
- || (req->req.length % ep->ep.maxpacket) != 0);
+ expect = likely(req->req.zero ||
+ (req->req.length % ep->ep.maxpacket));
if (expect != ep->in_fifo_validate)
valid = 0;
}
- queue_dma (ep, req, valid);
+ queue_dma(ep, req, valid);
} /* else the irq handler advances the queue. */
ep->responded = 1;
if (req)
- list_add_tail (&req->queue, &ep->queue);
+ list_add_tail(&req->queue, &ep->queue);
done:
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->lock, flags);
/* pci writes may still be posted */
return 0;
}
static inline void
-dma_done (
- struct net2280_ep *ep,
- struct net2280_request *req,
- u32 dmacount,
- int status
-)
+dma_done(struct net2280_ep *ep, struct net2280_request *req, u32 dmacount,
+ int status)
{
req->req.actual = req->req.length - (DMA_BYTE_COUNT_MASK & dmacount);
- done (ep, req, status);
+ done(ep, req, status);
}
-static void restart_dma (struct net2280_ep *ep);
+static void restart_dma(struct net2280_ep *ep);
-static void scan_dma_completions (struct net2280_ep *ep)
+static void scan_dma_completions(struct net2280_ep *ep)
{
/* only look at descriptors that were "naturally" retired,
* so fifo and list head state won't matter
*/
- while (!list_empty (&ep->queue)) {
+ while (!list_empty(&ep->queue)) {
struct net2280_request *req;
u32 tmp;
- req = list_entry (ep->queue.next,
+ req = list_entry(ep->queue.next,
struct net2280_request, queue);
if (!req->valid)
break;
- rmb ();
- tmp = le32_to_cpup (&req->td->dmacount);
+ rmb();
+ tmp = le32_to_cpup(&req->td->dmacount);
if ((tmp & BIT(VALID_BIT)) != 0)
break;
* cases where DMA must be aborted; this code handles
* all non-abort DMA completions.
*/
- if (unlikely (req->td->dmadesc == 0)) {
+ if (unlikely(req->td->dmadesc == 0)) {
/* paranoia */
- tmp = readl (&ep->dma->dmacount);
+ tmp = readl(&ep->dma->dmacount);
if (tmp & DMA_BYTE_COUNT_MASK)
break;
/* single transfer mode */
- dma_done (ep, req, tmp, 0);
+ dma_done(ep, req, tmp, 0);
break;
} else if (!ep->is_in
&& (req->req.length % ep->ep.maxpacket) != 0) {
- tmp = readl (&ep->regs->ep_stat);
+ tmp = readl(&ep->regs->ep_stat);
if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX)
return dma_done(ep, req, tmp, 0);
* 0122, and 0124; not all cases trigger the warning.
*/
if ((tmp & BIT(NAK_OUT_PACKETS)) == 0) {
- WARNING (ep->dev, "%s lost packet sync!\n",
+ WARNING(ep->dev, "%s lost packet sync!\n",
ep->ep.name);
req->req.status = -EOVERFLOW;
- } else if ((tmp = readl (&ep->regs->ep_avail)) != 0) {
- /* fifo gets flushed later */
- ep->out_overflow = 1;
- DEBUG (ep->dev, "%s dma, discard %d len %d\n",
+ } else {
+ tmp = readl(&ep->regs->ep_avail);
+ if (tmp) {
+ /* fifo gets flushed later */
+ ep->out_overflow = 1;
+ DEBUG(ep->dev,
+ "%s dma, discard %d len %d\n",
ep->ep.name, tmp,
req->req.length);
- req->req.status = -EOVERFLOW;
+ req->req.status = -EOVERFLOW;
+ }
}
}
- dma_done (ep, req, tmp, 0);
+ dma_done(ep, req, tmp, 0);
}
}
-static void restart_dma (struct net2280_ep *ep)
+static void restart_dma(struct net2280_ep *ep)
{
struct net2280_request *req;
u32 dmactl = dmactl_default;
if (ep->stopped)
return;
- req = list_entry (ep->queue.next, struct net2280_request, queue);
+ req = list_entry(ep->queue.next, struct net2280_request, queue);
if (!use_dma_chaining) {
- start_dma (ep, req);
+ start_dma(ep, req);
return;
}
struct net2280_request *entry, *prev = NULL;
int reqmode, done = 0;
- DEBUG (ep->dev, "%s dma hiccup td %p\n", ep->ep.name, req->td);
- ep->in_fifo_validate = likely (req->req.zero
- || (req->req.length % ep->ep.maxpacket) != 0);
+ DEBUG(ep->dev, "%s dma hiccup td %p\n", ep->ep.name, req->td);
+ ep->in_fifo_validate = likely(req->req.zero ||
+ (req->req.length % ep->ep.maxpacket) != 0);
if (ep->in_fifo_validate)
dmactl |= BIT(DMA_FIFO_VALIDATE);
- list_for_each_entry (entry, &ep->queue, queue) {
+ list_for_each_entry(entry, &ep->queue, queue) {
__le32 dmacount;
if (entry == req)
continue;
dmacount = entry->td->dmacount;
if (!done) {
- reqmode = likely (entry->req.zero
- || (entry->req.length
- % ep->ep.maxpacket) != 0);
+ reqmode = likely(entry->req.zero ||
+ (entry->req.length % ep->ep.maxpacket));
if (reqmode == ep->in_fifo_validate) {
entry->valid = 1;
dmacount |= valid_bit;
}
}
- writel (0, &ep->dma->dmactl);
- start_queue (ep, dmactl, req->td_dma);
+ writel(0, &ep->dma->dmactl);
+ start_queue(ep, dmactl, req->td_dma);
}
static void abort_dma_228x(struct net2280_ep *ep)
{
/* abort the current transfer */
- if (likely (!list_empty (&ep->queue))) {
+ if (likely(!list_empty(&ep->queue))) {
/* FIXME work around errata 0121, 0122, 0124 */
writel(BIT(DMA_ABORT), &ep->dma->dmastat);
- spin_stop_dma (ep->dma);
+ spin_stop_dma(ep->dma);
} else
- stop_dma (ep->dma);
- scan_dma_completions (ep);
+ stop_dma(ep->dma);
+ scan_dma_completions(ep);
}
static void abort_dma_338x(struct net2280_ep *ep)
}
/* dequeue ALL requests */
-static void nuke (struct net2280_ep *ep)
+static void nuke(struct net2280_ep *ep)
{
struct net2280_request *req;
/* called with spinlock held */
ep->stopped = 1;
if (ep->dma)
- abort_dma (ep);
- while (!list_empty (&ep->queue)) {
- req = list_entry (ep->queue.next,
+ abort_dma(ep);
+ while (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next,
struct net2280_request,
queue);
- done (ep, req, -ESHUTDOWN);
+ done(ep, req, -ESHUTDOWN);
}
}
/* dequeue JUST ONE request */
-static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req)
+static int net2280_dequeue(struct usb_ep *_ep, struct usb_request *_req)
{
struct net2280_ep *ep;
struct net2280_request *req;
u32 dmactl;
int stopped;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || (!ep->desc && ep->num != 0) || !_req)
return -EINVAL;
- spin_lock_irqsave (&ep->dev->lock, flags);
+ spin_lock_irqsave(&ep->dev->lock, flags);
stopped = ep->stopped;
/* quiesce dma while we patch the queue */
dmactl = 0;
ep->stopped = 1;
if (ep->dma) {
- dmactl = readl (&ep->dma->dmactl);
+ dmactl = readl(&ep->dma->dmactl);
/* WARNING erratum 0127 may kick in ... */
- stop_dma (ep->dma);
- scan_dma_completions (ep);
+ stop_dma(ep->dma);
+ scan_dma_completions(ep);
}
/* make sure it's still queued on this endpoint */
- list_for_each_entry (req, &ep->queue, queue) {
+ list_for_each_entry(req, &ep->queue, queue) {
if (&req->req == _req)
break;
}
if (&req->req != _req) {
- spin_unlock_irqrestore (&ep->dev->lock, flags);
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
return -EINVAL;
}
/* queue head may be partially complete. */
if (ep->queue.next == &req->queue) {
if (ep->dma) {
- DEBUG (ep->dev, "unlink (%s) dma\n", _ep->name);
+ DEBUG(ep->dev, "unlink (%s) dma\n", _ep->name);
_req->status = -ECONNRESET;
- abort_dma (ep);
- if (likely (ep->queue.next == &req->queue)) {
- // NOTE: misreports single-transfer mode
+ abort_dma(ep);
+ if (likely(ep->queue.next == &req->queue)) {
+ /* NOTE: misreports single-transfer mode*/
req->td->dmacount = 0; /* invalidate */
- dma_done (ep, req,
- readl (&ep->dma->dmacount),
+ dma_done(ep, req,
+ readl(&ep->dma->dmacount),
-ECONNRESET);
}
} else {
- DEBUG (ep->dev, "unlink (%s) pio\n", _ep->name);
- done (ep, req, -ECONNRESET);
+ DEBUG(ep->dev, "unlink (%s) pio\n", _ep->name);
+ done(ep, req, -ECONNRESET);
}
req = NULL;
/* patch up hardware chaining data */
} else if (ep->dma && use_dma_chaining) {
if (req->queue.prev == ep->queue.next) {
- writel (le32_to_cpu (req->td->dmadesc),
+ writel(le32_to_cpu(req->td->dmadesc),
&ep->dma->dmadesc);
if (req->td->dmacount & dma_done_ie)
- writel (readl (&ep->dma->dmacount)
+ writel(readl(&ep->dma->dmacount)
| le32_to_cpu(dma_done_ie),
&ep->dma->dmacount);
} else {
struct net2280_request *prev;
- prev = list_entry (req->queue.prev,
+ prev = list_entry(req->queue.prev,
struct net2280_request, queue);
prev->td->dmadesc = req->td->dmadesc;
if (req->td->dmacount & dma_done_ie)
}
if (req)
- done (ep, req, -ECONNRESET);
+ done(ep, req, -ECONNRESET);
ep->stopped = stopped;
if (ep->dma) {
/* turn off dma on inactive queues */
- if (list_empty (&ep->queue))
- stop_dma (ep->dma);
+ if (list_empty(&ep->queue))
+ stop_dma(ep->dma);
else if (!ep->stopped) {
/* resume current request, or start new one */
if (req)
- writel (dmactl, &ep->dma->dmactl);
+ writel(dmactl, &ep->dma->dmactl);
else
- start_dma (ep, list_entry (ep->queue.next,
+ start_dma(ep, list_entry(ep->queue.next,
struct net2280_request, queue));
}
}
- spin_unlock_irqrestore (&ep->dev->lock, flags);
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
return 0;
}
/*-------------------------------------------------------------------------*/
-static int net2280_fifo_status (struct usb_ep *_ep);
+static int net2280_fifo_status(struct usb_ep *_ep);
static int
net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
unsigned long flags;
int retval = 0;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || (!ep->desc && ep->num != 0))
return -EINVAL;
if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
== USB_ENDPOINT_XFER_ISOC)
return -EINVAL;
- spin_lock_irqsave (&ep->dev->lock, flags);
- if (!list_empty (&ep->queue))
+ spin_lock_irqsave(&ep->dev->lock, flags);
+ if (!list_empty(&ep->queue))
retval = -EAGAIN;
- else if (ep->is_in && value && net2280_fifo_status (_ep) != 0)
+ else if (ep->is_in && value && net2280_fifo_status(_ep) != 0)
retval = -EAGAIN;
else {
- VDEBUG (ep->dev, "%s %s %s\n", _ep->name,
+ VDEBUG(ep->dev, "%s %s %s\n", _ep->name,
value ? "set" : "clear",
wedged ? "wedge" : "halt");
/* set/clear, then synch memory views with the device */
if (ep->num == 0)
ep->dev->protocol_stall = 1;
else
- set_halt (ep);
+ set_halt(ep);
if (wedged)
ep->wedged = 1;
} else {
- clear_halt (ep);
+ clear_halt(ep);
if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX &&
!list_empty(&ep->queue) && ep->td_dma)
restart_dma(ep);
ep->wedged = 0;
}
- (void) readl (&ep->regs->ep_rsp);
+ (void) readl(&ep->regs->ep_rsp);
}
- spin_unlock_irqrestore (&ep->dev->lock, flags);
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
return retval;
}
-static int
-net2280_set_halt(struct usb_ep *_ep, int value)
+static int net2280_set_halt(struct usb_ep *_ep, int value)
{
return net2280_set_halt_and_wedge(_ep, value, 0);
}
-static int
-net2280_set_wedge(struct usb_ep *_ep)
+static int net2280_set_wedge(struct usb_ep *_ep)
{
if (!_ep || _ep->name == ep0name)
return -EINVAL;
return net2280_set_halt_and_wedge(_ep, 1, 1);
}
-static int
-net2280_fifo_status (struct usb_ep *_ep)
+static int net2280_fifo_status(struct usb_ep *_ep)
{
struct net2280_ep *ep;
u32 avail;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || (!ep->desc && ep->num != 0))
return -ENODEV;
if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
return avail;
}
-static void
-net2280_fifo_flush (struct usb_ep *_ep)
+static void net2280_fifo_flush(struct usb_ep *_ep)
{
struct net2280_ep *ep;
- ep = container_of (_ep, struct net2280_ep, ep);
+ ep = container_of(_ep, struct net2280_ep, ep);
if (!_ep || (!ep->desc && ep->num != 0))
return;
if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
return;
writel(BIT(FIFO_FLUSH), &ep->regs->ep_stat);
- (void) readl (&ep->regs->ep_rsp);
+ (void) readl(&ep->regs->ep_rsp);
}
static const struct usb_ep_ops net2280_ep_ops = {
/*-------------------------------------------------------------------------*/
-static int net2280_get_frame (struct usb_gadget *_gadget)
+static int net2280_get_frame(struct usb_gadget *_gadget)
{
struct net2280 *dev;
unsigned long flags;
if (!_gadget)
return -ENODEV;
- dev = container_of (_gadget, struct net2280, gadget);
- spin_lock_irqsave (&dev->lock, flags);
- retval = get_idx_reg (dev->regs, REG_FRAME) & 0x03ff;
- spin_unlock_irqrestore (&dev->lock, flags);
+ dev = container_of(_gadget, struct net2280, gadget);
+ spin_lock_irqsave(&dev->lock, flags);
+ retval = get_idx_reg(dev->regs, REG_FRAME) & 0x03ff;
+ spin_unlock_irqrestore(&dev->lock, flags);
return retval;
}
-static int net2280_wakeup (struct usb_gadget *_gadget)
+static int net2280_wakeup(struct usb_gadget *_gadget)
{
struct net2280 *dev;
u32 tmp;
if (!_gadget)
return 0;
- dev = container_of (_gadget, struct net2280, gadget);
+ dev = container_of(_gadget, struct net2280, gadget);
- spin_lock_irqsave (&dev->lock, flags);
- tmp = readl (&dev->usb->usbctl);
+ spin_lock_irqsave(&dev->lock, flags);
+ tmp = readl(&dev->usb->usbctl);
if (tmp & BIT(DEVICE_REMOTE_WAKEUP_ENABLE))
writel(BIT(GENERATE_RESUME), &dev->usb->usbstat);
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->lock, flags);
/* pci writes may still be posted */
return 0;
}
-static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value)
+static int net2280_set_selfpowered(struct usb_gadget *_gadget, int value)
{
struct net2280 *dev;
u32 tmp;
if (!_gadget)
return 0;
- dev = container_of (_gadget, struct net2280, gadget);
+ dev = container_of(_gadget, struct net2280, gadget);
- spin_lock_irqsave (&dev->lock, flags);
- tmp = readl (&dev->usb->usbctl);
+ spin_lock_irqsave(&dev->lock, flags);
+ tmp = readl(&dev->usb->usbctl);
if (value) {
tmp |= BIT(SELF_POWERED_STATUS);
dev->selfpowered = 1;
tmp &= ~BIT(SELF_POWERED_STATUS);
dev->selfpowered = 0;
}
- writel (tmp, &dev->usb->usbctl);
- spin_unlock_irqrestore (&dev->lock, flags);
+ writel(tmp, &dev->usb->usbctl);
+ spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
if (!_gadget)
return -ENODEV;
- dev = container_of (_gadget, struct net2280, gadget);
+ dev = container_of(_gadget, struct net2280, gadget);
- spin_lock_irqsave (&dev->lock, flags);
- tmp = readl (&dev->usb->usbctl);
+ spin_lock_irqsave(&dev->lock, flags);
+ tmp = readl(&dev->usb->usbctl);
dev->softconnect = (is_on != 0);
if (is_on)
tmp |= BIT(USB_DETECT_ENABLE);
else
tmp &= ~BIT(USB_DETECT_ENABLE);
- writel (tmp, &dev->usb->usbctl);
- spin_unlock_irqrestore (&dev->lock, flags);
+ writel(tmp, &dev->usb->usbctl);
+ spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
static ssize_t function_show(struct device *_dev, struct device_attribute *attr,
char *buf)
{
- struct net2280 *dev = dev_get_drvdata (_dev);
+ struct net2280 *dev = dev_get_drvdata(_dev);
- if (!dev->driver
- || !dev->driver->function
- || strlen (dev->driver->function) > PAGE_SIZE)
+ if (!dev->driver || !dev->driver->function ||
+ strlen(dev->driver->function) > PAGE_SIZE)
return 0;
- return scnprintf (buf, PAGE_SIZE, "%s\n", dev->driver->function);
+ return scnprintf(buf, PAGE_SIZE, "%s\n", dev->driver->function);
}
static DEVICE_ATTR_RO(function);
u32 t1, t2;
const char *s;
- dev = dev_get_drvdata (_dev);
+ dev = dev_get_drvdata(_dev);
next = buf;
size = PAGE_SIZE;
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->lock, flags);
if (dev->driver)
s = dev->driver->driver.name;
s = "(none)";
/* Main Control Registers */
- t = scnprintf (next, size, "%s version " DRIVER_VERSION
+ t = scnprintf(next, size, "%s version " DRIVER_VERSION
", chiprev %04x, dma %s\n\n"
"devinit %03x fifoctl %08x gadget '%s'\n"
"pci irqenb0 %02x irqenb1 %08x "
use_dma
? (use_dma_chaining ? "chaining" : "enabled")
: "disabled",
- readl (&dev->regs->devinit),
- readl (&dev->regs->fifoctl),
+ readl(&dev->regs->devinit),
+ readl(&dev->regs->fifoctl),
s,
- readl (&dev->regs->pciirqenb0),
- readl (&dev->regs->pciirqenb1),
- readl (&dev->regs->irqstat0),
- readl (&dev->regs->irqstat1));
+ readl(&dev->regs->pciirqenb0),
+ readl(&dev->regs->pciirqenb1),
+ readl(&dev->regs->irqstat0),
+ readl(&dev->regs->irqstat1));
size -= t;
next += t;
/* USB Control Registers */
- t1 = readl (&dev->usb->usbctl);
- t2 = readl (&dev->usb->usbstat);
+ t1 = readl(&dev->usb->usbctl);
+ t2 = readl(&dev->usb->usbstat);
if (t1 & BIT(VBUS_PIN)) {
if (t2 & BIT(HIGH_SPEED))
s = "high speed";
/* full speed bit (6) not working?? */
} else
s = "not attached";
- t = scnprintf (next, size,
+ t = scnprintf(next, size,
"stdrsp %08x usbctl %08x usbstat %08x "
"addr 0x%02x (%s)\n",
- readl (&dev->usb->stdrsp), t1, t2,
- readl (&dev->usb->ouraddr), s);
+ readl(&dev->usb->stdrsp), t1, t2,
+ readl(&dev->usb->ouraddr), s);
size -= t;
next += t;
for (i = 0; i < dev->n_ep; i++) {
struct net2280_ep *ep;
- ep = &dev->ep [i];
+ ep = &dev->ep[i];
if (i && !ep->desc)
continue;
t1 = readl(&ep->cfg->ep_cfg);
- t2 = readl (&ep->regs->ep_rsp) & 0xff;
- t = scnprintf (next, size,
+ t2 = readl(&ep->regs->ep_rsp) & 0xff;
+ t = scnprintf(next, size,
"\n%s\tcfg %05x rsp (%02x) %s%s%s%s%s%s%s%s"
"irqenb %02x\n",
ep->ep.name, t1, t2,
? "DATA1 " : "DATA0 ",
(t2 & BIT(CLEAR_ENDPOINT_HALT))
? "HALT " : "",
- readl (&ep->regs->ep_irqenb));
+ readl(&ep->regs->ep_irqenb));
size -= t;
next += t;
- t = scnprintf (next, size,
+ t = scnprintf(next, size,
"\tstat %08x avail %04x "
"(ep%d%s-%s)%s\n",
- readl (&ep->regs->ep_stat),
- readl (&ep->regs->ep_avail),
- t1 & 0x0f, DIR_STRING (t1),
- type_string (t1 >> 8),
+ readl(&ep->regs->ep_stat),
+ readl(&ep->regs->ep_avail),
+ t1 & 0x0f, DIR_STRING(t1),
+ type_string(t1 >> 8),
ep->stopped ? "*" : "");
size -= t;
next += t;
if (!ep->dma)
continue;
- t = scnprintf (next, size,
+ t = scnprintf(next, size,
" dma\tctl %08x stat %08x count %08x\n"
"\taddr %08x desc %08x\n",
- readl (&ep->dma->dmactl),
- readl (&ep->dma->dmastat),
- readl (&ep->dma->dmacount),
- readl (&ep->dma->dmaaddr),
- readl (&ep->dma->dmadesc));
+ readl(&ep->dma->dmactl),
+ readl(&ep->dma->dmastat),
+ readl(&ep->dma->dmacount),
+ readl(&ep->dma->dmaaddr),
+ readl(&ep->dma->dmadesc));
size -= t;
next += t;
}
- /* Indexed Registers */
- // none yet
+ /* Indexed Registers (none yet) */
/* Statistics */
- t = scnprintf (next, size, "\nirqs: ");
+ t = scnprintf(next, size, "\nirqs: ");
size -= t;
next += t;
for (i = 0; i < dev->n_ep; i++) {
struct net2280_ep *ep;
- ep = &dev->ep [i];
+ ep = &dev->ep[i];
if (i && !ep->irqs)
continue;
- t = scnprintf (next, size, " %s/%lu", ep->ep.name, ep->irqs);
+ t = scnprintf(next, size, " %s/%lu", ep->ep.name, ep->irqs);
size -= t;
next += t;
}
- t = scnprintf (next, size, "\n");
+ t = scnprintf(next, size, "\n");
size -= t;
next += t;
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->lock, flags);
return PAGE_SIZE - size;
}
unsigned long flags;
int i;
- dev = dev_get_drvdata (_dev);
+ dev = dev_get_drvdata(_dev);
next = buf;
size = PAGE_SIZE;
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->lock, flags);
for (i = 0; i < dev->n_ep; i++) {
- struct net2280_ep *ep = &dev->ep [i];
+ struct net2280_ep *ep = &dev->ep[i];
struct net2280_request *req;
int t;
if (!d)
continue;
t = d->bEndpointAddress;
- t = scnprintf (next, size,
+ t = scnprintf(next, size,
"\n%s (ep%d%s-%s) max %04x %s fifo %d\n",
ep->ep.name, t & USB_ENDPOINT_NUMBER_MASK,
(t & USB_DIR_IN) ? "in" : "out",
type_string(d->bmAttributes),
- usb_endpoint_maxp (d) & 0x1fff,
+ usb_endpoint_maxp(d) & 0x1fff,
ep->dma ? "dma" : "pio", ep->fifo_size
);
} else /* ep0 should only have one transfer queued */
- t = scnprintf (next, size, "ep0 max 64 pio %s\n",
+ t = scnprintf(next, size, "ep0 max 64 pio %s\n",
ep->is_in ? "in" : "out");
if (t <= 0 || t > size)
goto done;
size -= t;
next += t;
- if (list_empty (&ep->queue)) {
- t = scnprintf (next, size, "\t(nothing queued)\n");
+ if (list_empty(&ep->queue)) {
+ t = scnprintf(next, size, "\t(nothing queued)\n");
if (t <= 0 || t > size)
goto done;
size -= t;
next += t;
continue;
}
- list_for_each_entry (req, &ep->queue, queue) {
- if (ep->dma && req->td_dma == readl (&ep->dma->dmadesc))
- t = scnprintf (next, size,
+ list_for_each_entry(req, &ep->queue, queue) {
+ if (ep->dma && req->td_dma == readl(&ep->dma->dmadesc))
+ t = scnprintf(next, size,
"\treq %p len %d/%d "
"buf %p (dmacount %08x)\n",
&req->req, req->req.actual,
req->req.length, req->req.buf,
- readl (&ep->dma->dmacount));
+ readl(&ep->dma->dmacount));
else
- t = scnprintf (next, size,
+ t = scnprintf(next, size,
"\treq %p len %d/%d buf %p\n",
&req->req, req->req.actual,
req->req.length, req->req.buf);
struct net2280_dma *td;
td = req->td;
- t = scnprintf (next, size, "\t td %08x "
+ t = scnprintf(next, size, "\t td %08x "
" count %08x buf %08x desc %08x\n",
(u32) req->td_dma,
- le32_to_cpu (td->dmacount),
- le32_to_cpu (td->dmaaddr),
- le32_to_cpu (td->dmadesc));
+ le32_to_cpu(td->dmacount),
+ le32_to_cpu(td->dmaaddr),
+ le32_to_cpu(td->dmadesc));
if (t <= 0 || t > size)
goto done;
size -= t;
}
done:
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->lock, flags);
return PAGE_SIZE - size;
}
static DEVICE_ATTR_RO(queues);
#else
-#define device_create_file(a,b) (0)
-#define device_remove_file(a,b) do { } while (0)
+#define device_create_file(a, b) (0)
+#define device_remove_file(a, b) do { } while (0)
#endif
* to/from another device fifo instead of to/from memory.
*/
-static void set_fifo_mode (struct net2280 *dev, int mode)
+static void set_fifo_mode(struct net2280 *dev, int mode)
{
/* keeping high bits preserves BAR2 */
- writel ((0xffff << PCI_BASE2_RANGE) | mode, &dev->regs->fifoctl);
+ writel((0xffff << PCI_BASE2_RANGE) | mode, &dev->regs->fifoctl);
/* always ep-{a,b,e,f} ... maybe not ep-c or ep-d */
- INIT_LIST_HEAD (&dev->gadget.ep_list);
- list_add_tail (&dev->ep [1].ep.ep_list, &dev->gadget.ep_list);
- list_add_tail (&dev->ep [2].ep.ep_list, &dev->gadget.ep_list);
+ INIT_LIST_HEAD(&dev->gadget.ep_list);
+ list_add_tail(&dev->ep[1].ep.ep_list, &dev->gadget.ep_list);
+ list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list);
switch (mode) {
case 0:
- list_add_tail (&dev->ep [3].ep.ep_list, &dev->gadget.ep_list);
- list_add_tail (&dev->ep [4].ep.ep_list, &dev->gadget.ep_list);
- dev->ep [1].fifo_size = dev->ep [2].fifo_size = 1024;
+ list_add_tail(&dev->ep[3].ep.ep_list, &dev->gadget.ep_list);
+ list_add_tail(&dev->ep[4].ep.ep_list, &dev->gadget.ep_list);
+ dev->ep[1].fifo_size = dev->ep[2].fifo_size = 1024;
break;
case 1:
- dev->ep [1].fifo_size = dev->ep [2].fifo_size = 2048;
+ dev->ep[1].fifo_size = dev->ep[2].fifo_size = 2048;
break;
case 2:
- list_add_tail (&dev->ep [3].ep.ep_list, &dev->gadget.ep_list);
- dev->ep [1].fifo_size = 2048;
- dev->ep [2].fifo_size = 1024;
+ list_add_tail(&dev->ep[3].ep.ep_list, &dev->gadget.ep_list);
+ dev->ep[1].fifo_size = 2048;
+ dev->ep[2].fifo_size = 1024;
break;
}
/* fifo sizes for ep0, ep-c, ep-d, ep-e, and ep-f never change */
- list_add_tail (&dev->ep [5].ep.ep_list, &dev->gadget.ep_list);
- list_add_tail (&dev->ep [6].ep.ep_list, &dev->gadget.ep_list);
+ list_add_tail(&dev->ep[5].ep.ep_list, &dev->gadget.ep_list);
+ list_add_tail(&dev->ep[6].ep.ep_list, &dev->gadget.ep_list);
}
static void defect7374_disable_data_eps(struct net2280 *dev)
u32 tmp;
dev->gadget.speed = USB_SPEED_UNKNOWN;
- (void) readl (&dev->usb->usbctl);
+ (void) readl(&dev->usb->usbctl);
- net2280_led_init (dev);
+ net2280_led_init(dev);
/* disable automatic responses, and irqs */
- writel (0, &dev->usb->stdrsp);
- writel (0, &dev->regs->pciirqenb0);
- writel (0, &dev->regs->pciirqenb1);
+ writel(0, &dev->usb->stdrsp);
+ writel(0, &dev->regs->pciirqenb0);
+ writel(0, &dev->regs->pciirqenb1);
/* clear old dma and irq state */
for (tmp = 0; tmp < 4; tmp++) {
abort_dma(ep);
}
- writel (~0, &dev->regs->irqstat0),
+ writel(~0, &dev->regs->irqstat0),
writel(~(u32)BIT(SUSPEND_REQUEST_INTERRUPT), &dev->regs->irqstat1),
/* reset, and enable pci */
BIT(FIFO_SOFT_RESET) |
BIT(USB_SOFT_RESET) |
BIT(M8051_RESET);
- writel (tmp, &dev->regs->devinit);
+ writel(tmp, &dev->regs->devinit);
/* standard fifo and endpoint allocations */
- set_fifo_mode (dev, (fifo_mode <= 2) ? fifo_mode : 0);
+ set_fifo_mode(dev, (fifo_mode <= 2) ? fifo_mode : 0);
}
static void usb_reset_338x(struct net2280 *dev)
/* basic endpoint init */
for (tmp = 0; tmp < 7; tmp++) {
- struct net2280_ep *ep = &dev->ep [tmp];
+ struct net2280_ep *ep = &dev->ep[tmp];
- ep->ep.name = ep_name [tmp];
+ ep->ep.name = ep_name[tmp];
ep->dev = dev;
ep->num = tmp;
if (tmp > 0 && tmp <= 4) {
ep->fifo_size = 1024;
if (init_dma)
- ep->dma = &dev->dma [tmp - 1];
+ ep->dma = &dev->dma[tmp - 1];
} else
ep->fifo_size = 64;
- ep->regs = &dev->epregs [tmp];
+ ep->regs = &dev->epregs[tmp];
ep->cfg = &dev->epregs[tmp];
ep_reset_228x(dev->regs, ep);
}
- usb_ep_set_maxpacket_limit(&dev->ep [0].ep, 64);
- usb_ep_set_maxpacket_limit(&dev->ep [5].ep, 64);
- usb_ep_set_maxpacket_limit(&dev->ep [6].ep, 64);
+ usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64);
+ usb_ep_set_maxpacket_limit(&dev->ep[5].ep, 64);
+ usb_ep_set_maxpacket_limit(&dev->ep[6].ep, 64);
- dev->gadget.ep0 = &dev->ep [0].ep;
- dev->ep [0].stopped = 0;
- INIT_LIST_HEAD (&dev->gadget.ep0->ep_list);
+ dev->gadget.ep0 = &dev->ep[0].ep;
+ dev->ep[0].stopped = 0;
+ INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
/* we want to prevent lowlevel/insecure access from the USB host,
* but erratum 0119 means this enable bit is ignored
*/
for (tmp = 0; tmp < 5; tmp++)
- writel (EP_DONTUSE, &dev->dep [tmp].dep_cfg);
+ writel(EP_DONTUSE, &dev->dep[tmp].dep_cfg);
}
static void usb_reinit_338x(struct net2280 *dev)
writel(BIT(CLEAR_EP_HIDE_STATUS_PHASE) |
BIT(CLEAR_NAK_OUT_PACKETS) |
BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE)
- , &dev->epregs [0].ep_rsp);
+ , &dev->epregs[0].ep_rsp);
/*
* hardware optionally handles a bunch of standard requests
&dev->regs->pciirqenb1);
/* don't leave any writes posted */
- (void) readl (&dev->usb->usbctl);
+ (void) readl(&dev->usb->usbctl);
}
static void ep0_start_338x(struct net2280 *dev)
|| !driver->setup)
return -EINVAL;
- dev = container_of (_gadget, struct net2280, gadget);
+ dev = container_of(_gadget, struct net2280, gadget);
for (i = 0; i < dev->n_ep; i++)
- dev->ep [i].irqs = 0;
+ dev->ep[i].irqs = 0;
/* hook up the driver ... */
dev->softconnect = 1;
driver->driver.bus = NULL;
dev->driver = driver;
- retval = device_create_file (&dev->pdev->dev, &dev_attr_function);
- if (retval) goto err_unbind;
- retval = device_create_file (&dev->pdev->dev, &dev_attr_queues);
- if (retval) goto err_func;
+ retval = device_create_file(&dev->pdev->dev, &dev_attr_function);
+ if (retval)
+ goto err_unbind;
+ retval = device_create_file(&dev->pdev->dev, &dev_attr_queues);
+ if (retval)
+ goto err_func;
/* Enable force-full-speed testing mode, if desired */
if (full_speed && dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY)
/* ... then enable host detection and ep0; and we're ready
* for set_configuration as well as eventual disconnect.
*/
- net2280_led_active (dev, 1);
+ net2280_led_active(dev, 1);
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX)
defect7374_enable_data_eps_zero(dev);
- ep0_start (dev);
+ ep0_start(dev);
- DEBUG (dev, "%s ready, usbctl %08x stdrsp %08x\n",
+ DEBUG(dev, "%s ready, usbctl %08x stdrsp %08x\n",
driver->driver.name,
- readl (&dev->usb->usbctl),
- readl (&dev->usb->stdrsp));
+ readl(&dev->usb->usbctl),
+ readl(&dev->usb->stdrsp));
/* pci writes may still be posted */
return 0;
err_func:
- device_remove_file (&dev->pdev->dev, &dev_attr_function);
+ device_remove_file(&dev->pdev->dev, &dev_attr_function);
err_unbind:
dev->driver = NULL;
return retval;
}
-static void
-stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
+static void stop_activity(struct net2280 *dev, struct usb_gadget_driver *driver)
{
int i;
/* stop hardware; prevent new request submissions;
* and kill any outstanding requests.
*/
- usb_reset (dev);
+ usb_reset(dev);
for (i = 0; i < dev->n_ep; i++)
- nuke (&dev->ep [i]);
+ nuke(&dev->ep[i]);
/* report disconnect; the driver is already quiesced */
if (driver) {
spin_lock(&dev->lock);
}
- usb_reinit (dev);
+ usb_reinit(dev);
}
static int net2280_stop(struct usb_gadget *_gadget,
struct net2280 *dev;
unsigned long flags;
- dev = container_of (_gadget, struct net2280, gadget);
+ dev = container_of(_gadget, struct net2280, gadget);
- spin_lock_irqsave (&dev->lock, flags);
- stop_activity (dev, driver);
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_lock_irqsave(&dev->lock, flags);
+ stop_activity(dev, driver);
+ spin_unlock_irqrestore(&dev->lock, flags);
dev->driver = NULL;
- net2280_led_active (dev, 0);
+ net2280_led_active(dev, 0);
/* Disable full-speed test mode */
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY)
writel(0, &dev->usb->xcvrdiag);
- device_remove_file (&dev->pdev->dev, &dev_attr_function);
- device_remove_file (&dev->pdev->dev, &dev_attr_queues);
+ device_remove_file(&dev->pdev->dev, &dev_attr_function);
+ device_remove_file(&dev->pdev->dev, &dev_attr_queues);
DEBUG(dev, "unregistered driver '%s'\n",
driver ? driver->driver.name : "");
* also works for dma-capable endpoints, in pio mode or just
* to manually advance the queue after short OUT transfers.
*/
-static void handle_ep_small (struct net2280_ep *ep)
+static void handle_ep_small(struct net2280_ep *ep)
{
struct net2280_request *req;
u32 t;
/* 0 error, 1 mid-data, 2 done */
int mode = 1;
- if (!list_empty (&ep->queue))
- req = list_entry (ep->queue.next,
+ if (!list_empty(&ep->queue))
+ req = list_entry(ep->queue.next,
struct net2280_request, queue);
else
req = NULL;
/* ack all, and handle what we care about */
- t = readl (&ep->regs->ep_stat);
+ t = readl(&ep->regs->ep_stat);
ep->irqs++;
#if 0
- VDEBUG (ep->dev, "%s ack ep_stat %08x, req %p\n",
+ VDEBUG(ep->dev, "%s ack ep_stat %08x, req %p\n",
ep->ep.name, t, req ? &req->req : 0);
#endif
if (!ep->is_in || ep->dev->pdev->device == 0x2280)
writel(t & ~BIT(NAK_OUT_PACKETS), &ep->regs->ep_stat);
else
/* Added for 2282 */
- writel (t, &ep->regs->ep_stat);
+ writel(t, &ep->regs->ep_stat);
/* for ep0, monitor token irqs to catch data stage length errors
* and to synchronize on status.
* control requests could be slightly faster without token synch for
* status, but status can jam up that way.
*/
- if (unlikely (ep->num == 0)) {
+ if (unlikely(ep->num == 0)) {
if (ep->is_in) {
/* status; stop NAKing */
if (t & BIT(DATA_OUT_PING_TOKEN_INTERRUPT)) {
if (ep->dev->protocol_stall) {
ep->stopped = 1;
- set_halt (ep);
+ set_halt(ep);
}
if (!req)
- allow_status (ep);
+ allow_status(ep);
mode = 2;
/* reply to extra IN data tokens with a zlp */
} else if (t & BIT(DATA_IN_TOKEN_INTERRUPT)) {
if (ep->dev->protocol_stall) {
ep->stopped = 1;
- set_halt (ep);
+ set_halt(ep);
mode = 2;
} else if (ep->responded &&
!req && !ep->stopped)
- write_fifo (ep, NULL);
+ write_fifo(ep, NULL);
}
} else {
/* status; stop NAKing */
if (t & BIT(DATA_IN_TOKEN_INTERRUPT)) {
if (ep->dev->protocol_stall) {
ep->stopped = 1;
- set_halt (ep);
+ set_halt(ep);
}
mode = 2;
/* an extra OUT token is an error */
&& req->req.actual == req->req.length)
|| (ep->responded && !req)) {
ep->dev->protocol_stall = 1;
- set_halt (ep);
+ set_halt(ep);
ep->stopped = 1;
if (req)
- done (ep, req, -EOVERFLOW);
+ done(ep, req, -EOVERFLOW);
req = NULL;
}
}
}
- if (unlikely (!req))
+ if (unlikely(!req))
return;
/* manual DMA queue advance after short OUT */
- if (likely (ep->dma)) {
+ if (likely(ep->dma)) {
if (t & BIT(SHORT_PACKET_TRANSFERRED_INTERRUPT)) {
u32 count;
int stopped = ep->stopped;
* iff (M < N) we won't ever see a DMA interrupt.
*/
ep->stopped = 1;
- for (count = 0; ; t = readl (&ep->regs->ep_stat)) {
+ for (count = 0; ; t = readl(&ep->regs->ep_stat)) {
/* any preceding dma transfers must finish.
* dma handles (M >= N), may empty the queue
*/
- scan_dma_completions (ep);
- if (unlikely (list_empty (&ep->queue)
+ scan_dma_completions(ep);
+ if (unlikely(list_empty(&ep->queue)
|| ep->out_overflow)) {
req = NULL;
break;
}
- req = list_entry (ep->queue.next,
+ req = list_entry(ep->queue.next,
struct net2280_request, queue);
/* here either (M < N), a "real" short rx;
* or (M == N) and the queue didn't empty
*/
if (likely(t & BIT(FIFO_EMPTY))) {
- count = readl (&ep->dma->dmacount);
+ count = readl(&ep->dma->dmacount);
count &= DMA_BYTE_COUNT_MASK;
- if (readl (&ep->dma->dmadesc)
+ if (readl(&ep->dma->dmadesc)
!= req->td_dma)
req = NULL;
break;
/* stop DMA, leave ep NAKing */
writel(BIT(DMA_ABORT), &ep->dma->dmastat);
- spin_stop_dma (ep->dma);
+ spin_stop_dma(ep->dma);
- if (likely (req)) {
+ if (likely(req)) {
req->td->dmacount = 0;
- t = readl (&ep->regs->ep_avail);
- dma_done (ep, req, count,
+ t = readl(&ep->regs->ep_avail);
+ dma_done(ep, req, count,
(ep->out_overflow || t)
? -EOVERFLOW : 0);
}
/* also flush to prevent erratum 0106 trouble */
- if (unlikely (ep->out_overflow
+ if (unlikely(ep->out_overflow
|| (ep->dev->chiprev == 0x0100
&& ep->dev->gadget.speed
== USB_SPEED_FULL))) {
- out_flush (ep);
+ out_flush(ep);
ep->out_overflow = 0;
}
/* (re)start dma if needed, stop NAKing */
ep->stopped = stopped;
- if (!list_empty (&ep->queue))
- restart_dma (ep);
+ if (!list_empty(&ep->queue))
+ restart_dma(ep);
} else
- DEBUG (ep->dev, "%s dma ep_stat %08x ??\n",
+ DEBUG(ep->dev, "%s dma ep_stat %08x ??\n",
ep->ep.name, t);
return;
/* data packet(s) received (in the fifo, OUT) */
} else if (t & BIT(DATA_PACKET_RECEIVED_INTERRUPT)) {
- if (read_fifo (ep, req) && ep->num != 0)
+ if (read_fifo(ep, req) && ep->num != 0)
mode = 2;
/* data packet(s) transmitted (IN) */
req->req.actual += len;
/* if we wrote it all, we're usually done */
- if (req->req.actual == req->req.length) {
- if (ep->num == 0) {
- /* send zlps until the status stage */
- } else if (!req->req.zero || len != ep->ep.maxpacket)
+ /* send zlps until the status stage */
+ if ((req->req.actual == req->req.length) &&
+ (!req->req.zero || len != ep->ep.maxpacket) && ep->num)
mode = 2;
- }
/* there was nothing to do ... */
} else if (mode == 1)
/* done */
if (mode == 2) {
/* stream endpoints often resubmit/unlink in completion */
- done (ep, req, 0);
+ done(ep, req, 0);
/* maybe advance queue to next request */
if (ep->num == 0) {
* them control that, the api doesn't (yet) allow it.
*/
if (!ep->stopped)
- allow_status (ep);
+ allow_status(ep);
req = NULL;
} else {
- if (!list_empty (&ep->queue) && !ep->stopped)
- req = list_entry (ep->queue.next,
+ if (!list_empty(&ep->queue) && !ep->stopped)
+ req = list_entry(ep->queue.next,
struct net2280_request, queue);
else
req = NULL;
if (req && !ep->is_in)
- stop_out_naking (ep);
+ stop_out_naking(ep);
}
}
/* load IN fifo with next packet (may be zlp) */
if (t & BIT(DATA_PACKET_TRANSMITTED_INTERRUPT))
- write_fifo (ep, &req->req);
+ write_fifo(ep, &req->req);
}
}
-static struct net2280_ep *
-get_ep_by_addr (struct net2280 *dev, u16 wIndex)
+static struct net2280_ep *get_ep_by_addr(struct net2280 *dev, u16 wIndex)
{
struct net2280_ep *ep;
if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0)
- return &dev->ep [0];
- list_for_each_entry (ep, &dev->gadget.ep_list, ep.ep_list) {
+ return &dev->ep[0];
+ list_for_each_entry(ep, &dev->gadget.ep_list, ep.ep_list) {
u8 bEndpointAddress;
if (!ep->desc)
return;
}
-static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
+static void handle_stat0_irqs(struct net2280 *dev, u32 stat)
{
struct net2280_ep *ep;
u32 num, scratch;
stat &= ~BIT(INTA_ASSERTED);
if (!stat)
return;
- // DEBUG (dev, "irqstat0 %04x\n", stat);
+ /* DEBUG(dev, "irqstat0 %04x\n", stat); */
/* starting a control request? */
if (unlikely(stat & BIT(SETUP_PACKET_INTERRUPT))) {
union {
- u32 raw [2];
+ u32 raw[2];
struct usb_ctrlrequest r;
} u;
int tmp;
usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
EP0_HS_MAX_PACKET_SIZE);
}
- net2280_led_speed (dev, dev->gadget.speed);
- DEBUG(dev, "%s\n", usb_speed_string(dev->gadget.speed));
+ net2280_led_speed(dev, dev->gadget.speed);
+ DEBUG(dev, "%s\n",
+ usb_speed_string(dev->gadget.speed));
}
- ep = &dev->ep [0];
+ ep = &dev->ep[0];
ep->irqs++;
/* make sure any leftover request state is cleared */
stat &= ~BIT(ENDPOINT_0_INTERRUPT);
- while (!list_empty (&ep->queue)) {
- req = list_entry (ep->queue.next,
+ while (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next,
struct net2280_request, queue);
- done (ep, req, (req->req.actual == req->req.length)
+ done(ep, req, (req->req.actual == req->req.length)
? 0 : -EPROTO);
}
ep->stopped = 0;
u.raw[0] = readl(&dev->usb->setup0123);
u.raw[1] = readl(&dev->usb->setup4567);
- cpu_to_le32s (&u.raw [0]);
- cpu_to_le32s (&u.raw [1]);
+ cpu_to_le32s(&u.raw[0]);
+ cpu_to_le32s(&u.raw[1]);
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX)
defect7374_workaround(dev, u.r);
scratch = BIT(DATA_PACKET_TRANSMITTED_INTERRUPT) |
BIT(DATA_OUT_PING_TOKEN_INTERRUPT) |
BIT(DATA_IN_TOKEN_INTERRUPT);
- stop_out_naking (ep);
+ stop_out_naking(ep);
} else
scratch = BIT(DATA_PACKET_RECEIVED_INTERRUPT) |
BIT(DATA_OUT_PING_TOKEN_INTERRUPT) |
BIT(DATA_IN_TOKEN_INTERRUPT);
- writel (scratch, &dev->epregs [0].ep_irqenb);
+ writel(scratch, &dev->epregs[0].ep_irqenb);
/* we made the hardware handle most lowlevel requests;
* everything else goes uplevel to the gadget code.
/* hw handles device and interface status */
if (u.r.bRequestType != (USB_DIR_IN|USB_RECIP_ENDPOINT))
goto delegate;
- if ((e = get_ep_by_addr (dev, w_index)) == NULL
- || w_length > 2)
+ e = get_ep_by_addr(dev, w_index);
+ if (!e || w_length > 2)
goto do_stall;
if (readl(&e->regs->ep_rsp) & BIT(SET_ENDPOINT_HALT))
- status = cpu_to_le32 (1);
+ status = cpu_to_le32(1);
else
- status = cpu_to_le32 (0);
+ status = cpu_to_le32(0);
/* don't bother with a request object! */
- writel (0, &dev->epregs [0].ep_irqenb);
- set_fifo_bytecount (ep, w_length);
- writel ((__force u32)status, &dev->epregs [0].ep_data);
- allow_status (ep);
- VDEBUG (dev, "%s stat %02x\n", ep->ep.name, status);
+ writel(0, &dev->epregs[0].ep_irqenb);
+ set_fifo_bytecount(ep, w_length);
+ writel((__force u32)status, &dev->epregs[0].ep_data);
+ allow_status(ep);
+ VDEBUG(dev, "%s stat %02x\n", ep->ep.name, status);
goto next_endpoints;
}
break;
if (w_value != USB_ENDPOINT_HALT
|| w_length != 0)
goto do_stall;
- if ((e = get_ep_by_addr (dev, w_index)) == NULL)
+ e = get_ep_by_addr(dev, w_index);
+ if (!e)
goto do_stall;
if (e->wedged) {
VDEBUG(dev, "%s wedged, halt not cleared\n",
!list_empty(&e->queue) && e->td_dma)
restart_dma(e);
}
- allow_status (ep);
+ allow_status(ep);
goto next_endpoints;
}
break;
if (w_value != USB_ENDPOINT_HALT
|| w_length != 0)
goto do_stall;
- if ((e = get_ep_by_addr (dev, w_index)) == NULL)
+ e = get_ep_by_addr(dev, w_index);
+ if (!e)
goto do_stall;
if (e->ep.name == ep0name)
goto do_stall;
- set_halt (e);
+ set_halt(e);
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX && e->dma)
abort_dma(e);
- allow_status (ep);
- VDEBUG (dev, "%s set halt\n", ep->ep.name);
+ allow_status(ep);
+ VDEBUG(dev, "%s set halt\n", ep->ep.name);
goto next_endpoints;
}
break;
default:
delegate:
- VDEBUG (dev, "setup %02x.%02x v%04x i%04x l%04x "
+ VDEBUG(dev, "setup %02x.%02x v%04x i%04x l%04x "
"ep_cfg %08x\n",
u.r.bRequestType, u.r.bRequest,
w_value, w_index, w_length,
readl(&ep->cfg->ep_cfg));
ep->responded = 0;
- spin_unlock (&dev->lock);
- tmp = dev->driver->setup (&dev->gadget, &u.r);
- spin_lock (&dev->lock);
+ spin_unlock(&dev->lock);
+ tmp = dev->driver->setup(&dev->gadget, &u.r);
+ spin_lock(&dev->lock);
}
/* stall ep0 on error */
if (tmp < 0) {
do_stall:
- VDEBUG (dev, "req %02x.%02x protocol STALL; stat %d\n",
+ VDEBUG(dev, "req %02x.%02x protocol STALL; stat %d\n",
u.r.bRequestType, u.r.bRequest, tmp);
dev->protocol_stall = 1;
}
continue;
scratch ^= t;
- ep = &dev->ep [num];
- handle_ep_small (ep);
+ ep = &dev->ep[num];
+ handle_ep_small(ep);
}
if (stat)
- DEBUG (dev, "unhandled irqstat0 %08x\n", stat);
+ DEBUG(dev, "unhandled irqstat0 %08x\n", stat);
}
#define DMA_INTERRUPTS (BIT(DMA_D_INTERRUPT) | \
BIT(PCI_TARGET_ABORT_RECEIVED_INTERRUPT) | \
BIT(PCI_RETRY_ABORT_INTERRUPT))
-static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
+static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
{
struct net2280_ep *ep;
u32 tmp, num, mask, scratch;
* only indicates a change in the reset state).
*/
if (stat & tmp) {
- writel (tmp, &dev->regs->irqstat1);
+ writel(tmp, &dev->regs->irqstat1);
if ((((stat & BIT(ROOT_PORT_RESET_INTERRUPT))
- && ((readl (&dev->usb->usbstat) & mask)
+ && ((readl(&dev->usb->usbstat) & mask)
== 0))
- || ((readl (&dev->usb->usbctl)
+ || ((readl(&dev->usb->usbctl)
& BIT(VBUS_PIN)) == 0)
- ) && ( dev->gadget.speed != USB_SPEED_UNKNOWN)) {
- DEBUG (dev, "disconnect %s\n",
+ ) && (dev->gadget.speed != USB_SPEED_UNKNOWN)) {
+ DEBUG(dev, "disconnect %s\n",
dev->driver->driver.name);
- stop_activity (dev, dev->driver);
- ep0_start (dev);
+ stop_activity(dev, dev->driver);
+ ep0_start(dev);
return;
}
stat &= ~tmp;
*/
tmp = BIT(SUSPEND_REQUEST_CHANGE_INTERRUPT);
if (stat & tmp) {
- writel (tmp, &dev->regs->irqstat1);
+ writel(tmp, &dev->regs->irqstat1);
if (stat & BIT(SUSPEND_REQUEST_INTERRUPT)) {
if (dev->driver->suspend)
- dev->driver->suspend (&dev->gadget);
+ dev->driver->suspend(&dev->gadget);
if (!enable_suspend)
stat &= ~BIT(SUSPEND_REQUEST_INTERRUPT);
} else {
if (dev->driver->resume)
- dev->driver->resume (&dev->gadget);
+ dev->driver->resume(&dev->gadget);
/* at high speed, note erratum 0133 */
}
stat &= ~tmp;
/* clear any other status/irqs */
if (stat)
- writel (stat, &dev->regs->irqstat1);
+ writel(stat, &dev->regs->irqstat1);
/* some status we can just ignore */
if (dev->pdev->device == 0x2280)
if (!stat)
return;
- // DEBUG (dev, "irqstat1 %08x\n", stat);
+ /* DEBUG(dev, "irqstat1 %08x\n", stat);*/
/* DMA status, for ep-{a,b,c,d} */
scratch = stat & DMA_INTERRUPTS;
continue;
scratch ^= tmp;
- ep = &dev->ep [num + 1];
+ ep = &dev->ep[num + 1];
dma = ep->dma;
if (!dma)
continue;
/* clear ep's dma status */
- tmp = readl (&dma->dmastat);
- writel (tmp, &dma->dmastat);
+ tmp = readl(&dma->dmastat);
+ writel(tmp, &dma->dmastat);
/* dma sync*/
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX) {
*/
if (!use_dma_chaining) {
if (!(tmp & BIT(DMA_TRANSACTION_DONE_INTERRUPT))) {
- DEBUG (ep->dev, "%s no xact done? %08x\n",
+ DEBUG(ep->dev, "%s no xact done? %08x\n",
ep->ep.name, tmp);
continue;
}
- stop_dma (ep->dma);
+ stop_dma(ep->dma);
}
/* OUT transfers terminate when the data from the
* long time ... we ignore that for now, accounting
* precisely (like PIO does) needs per-packet irqs
*/
- scan_dma_completions (ep);
+ scan_dma_completions(ep);
/* disable dma on inactive queues; else maybe restart */
- if (list_empty (&ep->queue)) {
+ if (list_empty(&ep->queue)) {
if (use_dma_chaining)
- stop_dma (ep->dma);
+ stop_dma(ep->dma);
} else {
- tmp = readl (&dma->dmactl);
+ tmp = readl(&dma->dmactl);
if (!use_dma_chaining || (tmp & BIT(DMA_ENABLE)) == 0)
- restart_dma (ep);
+ restart_dma(ep);
else if (ep->is_in && use_dma_chaining) {
struct net2280_request *req;
__le32 dmacount;
* used to trigger changing DMA_FIFO_VALIDATE
* (affects automagic zlp writes).
*/
- req = list_entry (ep->queue.next,
+ req = list_entry(ep->queue.next,
struct net2280_request, queue);
dmacount = req->td->dmacount;
dmacount &= cpu_to_le32(BIT(VALID_BIT) |
DMA_BYTE_COUNT_MASK);
if (dmacount && (dmacount & valid_bit) == 0)
- restart_dma (ep);
+ restart_dma(ep);
}
}
ep->irqs++;
* if they appear very often, here's where to try recovering.
*/
if (stat & PCI_ERROR_INTERRUPTS) {
- ERROR (dev, "pci dma error; stat %08x\n", stat);
+ ERROR(dev, "pci dma error; stat %08x\n", stat);
stat &= ~PCI_ERROR_INTERRUPTS;
/* these are fatal errors, but "maybe" they won't
* happen again ...
*/
- stop_activity (dev, dev->driver);
- ep0_start (dev);
+ stop_activity(dev, dev->driver);
+ ep0_start(dev);
stat = 0;
}
if (stat)
- DEBUG (dev, "unhandled irqstat1 %08x\n", stat);
+ DEBUG(dev, "unhandled irqstat1 %08x\n", stat);
}
-static irqreturn_t net2280_irq (int irq, void *_dev)
+static irqreturn_t net2280_irq(int irq, void *_dev)
{
struct net2280 *dev = _dev;
(!(readl(&dev->regs->irqstat0) & BIT(INTA_ASSERTED))))
return IRQ_NONE;
- spin_lock (&dev->lock);
+ spin_lock(&dev->lock);
/* handle disconnect, dma, and more */
- handle_stat1_irqs (dev, readl (&dev->regs->irqstat1));
+ handle_stat1_irqs(dev, readl(&dev->regs->irqstat1));
/* control requests and PIO */
- handle_stat0_irqs (dev, readl (&dev->regs->irqstat0));
+ handle_stat0_irqs(dev, readl(&dev->regs->irqstat0));
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX) {
/* re-enable interrupt to trigger any possible new interrupt */
writel(pciirqenb1, &dev->regs->pciirqenb1);
}
- spin_unlock (&dev->lock);
+ spin_unlock(&dev->lock);
return IRQ_HANDLED;
}
/*-------------------------------------------------------------------------*/
-static void gadget_release (struct device *_dev)
+static void gadget_release(struct device *_dev)
{
- struct net2280 *dev = dev_get_drvdata (_dev);
+ struct net2280 *dev = dev_get_drvdata(_dev);
- kfree (dev);
+ kfree(dev);
}
/* tear down the binding between this driver and the pci device */
-static void net2280_remove (struct pci_dev *pdev)
+static void net2280_remove(struct pci_dev *pdev)
{
- struct net2280 *dev = pci_get_drvdata (pdev);
+ struct net2280 *dev = pci_get_drvdata(pdev);
usb_del_gadget_udc(&dev->gadget);
BUG_ON(dev->driver);
/* then clean up the resources we allocated during probe() */
- net2280_led_shutdown (dev);
+ net2280_led_shutdown(dev);
if (dev->requests) {
int i;
for (i = 1; i < 5; i++) {
- if (!dev->ep [i].dummy)
+ if (!dev->ep[i].dummy)
continue;
- pci_pool_free (dev->requests, dev->ep [i].dummy,
- dev->ep [i].td_dma);
+ pci_pool_free(dev->requests, dev->ep[i].dummy,
+ dev->ep[i].td_dma);
}
- pci_pool_destroy (dev->requests);
+ pci_pool_destroy(dev->requests);
}
if (dev->got_irq)
- free_irq (pdev->irq, dev);
+ free_irq(pdev->irq, dev);
if (use_msi && dev->pdev->vendor == PCI_VENDOR_ID_PLX)
pci_disable_msi(pdev);
if (dev->regs)
- iounmap (dev->regs);
+ iounmap(dev->regs);
if (dev->region)
- release_mem_region (pci_resource_start (pdev, 0),
- pci_resource_len (pdev, 0));
+ release_mem_region(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
if (dev->enabled)
- pci_disable_device (pdev);
- device_remove_file (&pdev->dev, &dev_attr_registers);
+ pci_disable_device(pdev);
+ device_remove_file(&pdev->dev, &dev_attr_registers);
INFO (dev, "unbind\n");
}
* don't respond over USB until a gadget driver binds to us.
*/
-static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
+static int net2280_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct net2280 *dev;
unsigned long resource, len;
use_dma_chaining = 0;
/* alloc, and start init */
- dev = kzalloc (sizeof *dev, GFP_KERNEL);
- if (dev == NULL){
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
retval = -ENOMEM;
goto done;
}
- pci_set_drvdata (pdev, dev);
- spin_lock_init (&dev->lock);
+ pci_set_drvdata(pdev, dev);
+ spin_lock_init(&dev->lock);
dev->pdev = pdev;
dev->gadget.ops = &net2280_ops;
dev->gadget.max_speed = (dev->pdev->vendor == PCI_VENDOR_ID_PLX) ?
dev->gadget.name = driver_name;
/* now all the pci goodies ... */
- if (pci_enable_device (pdev) < 0) {
- retval = -ENODEV;
+ if (pci_enable_device(pdev) < 0) {
+ retval = -ENODEV;
goto done;
}
dev->enabled = 1;
* BAR 1 is 8051 memory; unused here (note erratum 0103)
* BAR 2 is fifo memory; unused here
*/
- resource = pci_resource_start (pdev, 0);
- len = pci_resource_len (pdev, 0);
- if (!request_mem_region (resource, len, driver_name)) {
- DEBUG (dev, "controller already in use\n");
+ resource = pci_resource_start(pdev, 0);
+ len = pci_resource_len(pdev, 0);
+ if (!request_mem_region(resource, len, driver_name)) {
+ DEBUG(dev, "controller already in use\n");
retval = -EBUSY;
goto done;
}
* 8051 code into the chip, e.g. to turn on PCI PM.
*/
- base = ioremap_nocache (resource, len);
+ base = ioremap_nocache(resource, len);
if (base == NULL) {
- DEBUG (dev, "can't map memory\n");
+ DEBUG(dev, "can't map memory\n");
retval = -EFAULT;
goto done;
}
dev->plregs = (struct usb338x_pl_regs __iomem *)
(base + 0x0800);
usbstat = readl(&dev->usb->usbstat);
- dev->enhanced_mode = (usbstat & BIT(11)) ? 1 : 0;
+ dev->enhanced_mode = !!(usbstat & BIT(11));
dev->n_ep = (dev->enhanced_mode) ? 9 : 5;
/* put into initial config, link up all endpoints */
fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
writel(0, &dev->usb->usbctl);
}
- usb_reset (dev);
- usb_reinit (dev);
+ usb_reset(dev);
+ usb_reinit(dev);
/* irq setup after old hardware is cleaned up */
if (!pdev->irq) {
- ERROR (dev, "No IRQ. Check PCI setup!\n");
+ ERROR(dev, "No IRQ. Check PCI setup!\n");
retval = -ENODEV;
goto done;
}
if (pci_enable_msi(pdev))
ERROR(dev, "Failed to enable MSI mode\n");
- if (request_irq (pdev->irq, net2280_irq, IRQF_SHARED, driver_name, dev)
- != 0) {
- ERROR (dev, "request interrupt %d failed\n", pdev->irq);
+ if (request_irq(pdev->irq, net2280_irq, IRQF_SHARED,
+ driver_name, dev)) {
+ ERROR(dev, "request interrupt %d failed\n", pdev->irq);
retval = -EBUSY;
goto done;
}
/* DMA setup */
/* NOTE: we know only the 32 LSBs of dma addresses may be nonzero */
- dev->requests = pci_pool_create ("requests", pdev,
- sizeof (struct net2280_dma),
+ dev->requests = pci_pool_create("requests", pdev,
+ sizeof(struct net2280_dma),
0 /* no alignment requirements */,
0 /* or page-crossing issues */);
if (!dev->requests) {
- DEBUG (dev, "can't get request pool\n");
+ DEBUG(dev, "can't get request pool\n");
retval = -ENOMEM;
goto done;
}
for (i = 1; i < 5; i++) {
struct net2280_dma *td;
- td = pci_pool_alloc (dev->requests, GFP_KERNEL,
- &dev->ep [i].td_dma);
+ td = pci_pool_alloc(dev->requests, GFP_KERNEL,
+ &dev->ep[i].td_dma);
if (!td) {
- DEBUG (dev, "can't get dummy %d\n", i);
+ DEBUG(dev, "can't get dummy %d\n", i);
retval = -ENOMEM;
goto done;
}
td->dmacount = 0; /* not VALID */
td->dmadesc = td->dmaaddr;
- dev->ep [i].dummy = td;
+ dev->ep[i].dummy = td;
}
/* enable lower-overhead pci memory bursts during DMA */
BIT(DMA_READ_LINE_ENABLE),
&dev->pci->pcimstctl);
/* erratum 0115 shouldn't appear: Linux inits PCI_LATENCY_TIMER */
- pci_set_master (pdev);
- pci_try_set_mwi (pdev);
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
/* ... also flushes any posted pci writes */
- dev->chiprev = get_idx_reg (dev->regs, REG_CHIPREV) & 0xffff;
+ dev->chiprev = get_idx_reg(dev->regs, REG_CHIPREV) & 0xffff;
/* done */
- INFO (dev, "%s\n", driver_desc);
- INFO (dev, "irq %d, pci mem %p, chip rev %04x\n",
+ INFO(dev, "%s\n", driver_desc);
+ INFO(dev, "irq %d, pci mem %p, chip rev %04x\n",
pdev->irq, base, dev->chiprev);
INFO(dev, "version: " DRIVER_VERSION "; dma %s %s\n",
use_dma ? (use_dma_chaining ? "chaining" : "enabled")
: "disabled",
dev->enhanced_mode ? "enhanced mode" : "legacy mode");
- retval = device_create_file (&pdev->dev, &dev_attr_registers);
- if (retval) goto done;
+ retval = device_create_file(&pdev->dev, &dev_attr_registers);
+ if (retval)
+ goto done;
retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget,
gadget_release);
done:
if (dev)
- net2280_remove (pdev);
+ net2280_remove(pdev);
return retval;
}
* generating IRQs across the upcoming reboot.
*/
-static void net2280_shutdown (struct pci_dev *pdev)
+static void net2280_shutdown(struct pci_dev *pdev)
{
- struct net2280 *dev = pci_get_drvdata (pdev);
+ struct net2280 *dev = pci_get_drvdata(pdev);
/* disable IRQs */
- writel (0, &dev->regs->pciirqenb0);
- writel (0, &dev->regs->pciirqenb1);
+ writel(0, &dev->regs->pciirqenb0);
+ writel(0, &dev->regs->pciirqenb1);
/* disable the pullup so the host will think we're gone */
- writel (0, &dev->usb->usbctl);
+ writel(0, &dev->usb->usbctl);
/* Disable full-speed test mode */
if (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY)
/*-------------------------------------------------------------------------*/
-static const struct pci_device_id pci_ids [] = { {
+static const struct pci_device_id pci_ids[] = { {
.class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
.class_mask = ~0,
.vendor = PCI_VENDOR_ID_PLX_LEGACY,
},
{ /* end: all zeroes */ }
};
-MODULE_DEVICE_TABLE (pci, pci_ids);
+MODULE_DEVICE_TABLE(pci, pci_ids);
/* pci driver glue; this is a "new style" PCI driver module */
static struct pci_driver net2280_pci_driver = {
module_pci_driver(net2280_pci_driver);
-MODULE_DESCRIPTION (DRIVER_DESC);
-MODULE_AUTHOR ("David Brownell");
-MODULE_LICENSE ("GPL");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("David Brownell");
+MODULE_LICENSE("GPL");
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff