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Commit fae3c158 authored by Ricardo Ribalda Delgado's avatar Ricardo Ribalda Delgado Committed by Felipe Balbi
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usb: gadget: net2280: Pass checkpacth.pl test 

Fix Code Style using checkpatch.pl criteria
Signed-off-by: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent a27f37a1
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Inline Side-by-side
Showing with 602 additions and 607 deletions
drivers/usb/gadget/net2280.c
View file @ fae3c158
......@@ -62,9 +62,9 @@
#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>
......@@ -76,12 +76,12 @@
#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",
......@@ -100,15 +100,15 @@ static bool use_dma_chaining;
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);
......@@ -121,7 +121,7 @@ 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;
......@@ -130,8 +130,7 @@ MODULE_PARM_DESC(full_speed, "force full-speed mode -- for testing only!");
#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";
......@@ -140,7 +139,6 @@ static char *type_string (u8 bmAttributes)
}
return "control";
}
#endif
#include "net2280.h"
......@@ -162,7 +160,7 @@ static inline void enable_pciirqenb(struct net2280_ep *ep)
}
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;
......@@ -170,7 +168,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
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;
......@@ -191,12 +189,12 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
}
/* 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;
......@@ -212,7 +210,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *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;
}
......@@ -236,7 +234,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
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;
......@@ -285,12 +283,12 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
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.
......@@ -298,35 +296,35 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
*/
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;
......@@ -340,28 +338,28 @@ static void ep_reset_228x(struct net2280_regs __iomem *regs,
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 (&regs->pciirqenb0);
tmp = readl(&regs->pciirqenb0);
tmp &= ~BIT(ep->num);
writel (tmp, &regs->pciirqenb0);
writel(tmp, &regs->pciirqenb0);
} else {
tmp = readl (&regs->pciirqenb1);
tmp = readl(&regs->pciirqenb1);
tmp &= ~BIT((8 + ep->num)); /* completion */
writel (tmp, &regs->pciirqenb1);
writel(tmp, &regs->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)
......@@ -383,7 +381,7 @@ static void ep_reset_228x(struct net2280_regs __iomem *regs,
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)
......@@ -459,64 +457,64 @@ static void ep_reset_338x(struct net2280_regs __iomem *regs,
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 */
......@@ -526,21 +524,20 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags)
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);
}
/*-------------------------------------------------------------------------*/
......@@ -552,8 +549,7 @@ net2280_free_request (struct usb_ep *_ep, struct usb_request *_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;
......@@ -564,7 +560,7 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req)
if (req) {
buf = req->buf + req->actual;
prefetch (buf);
prefetch(buf);
total = req->length - req->actual;
} else {
total = 0;
......@@ -576,7 +572,7 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req)
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);
......@@ -585,9 +581,9 @@ write_fifo (struct net2280_ep *ep, struct usb_request *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, &regs->ep_data);
tmp = get_unaligned((u32 *)buf);
cpu_to_le32s(&tmp);
writel(tmp, &regs->ep_data);
buf += 4;
count -= 4;
}
......@@ -597,10 +593,10 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req)
* 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, &regs->ep_data);
tmp = count ? get_unaligned((u32 *)buf) : count;
cpu_to_le32s(&tmp);
set_fifo_bytecount(ep, count & 0x03);
writel(tmp, &regs->ep_data);
}
/* pci writes may still be posted */
......@@ -613,20 +609,21 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req)
* 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) {
......@@ -646,8 +643,7 @@ static void out_flush (struct net2280_ep *ep)
* 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;
......@@ -659,12 +655,12 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
*/
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 */
......@@ -673,12 +669,12 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
/* 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 (&regs->ep_avail);
if (unlikely (count == 0)) {
udelay (1);
tmp = readl (&ep->regs->ep_stat);
count = readl (&regs->ep_avail);
prefetchw(buf);
count = readl(&regs->ep_avail);
if (unlikely(count == 0)) {
udelay(1);
tmp = readl(&ep->regs->ep_stat);
count = readl(&regs->ep_avail);
/* handled that data already? */
if (count == 0 && (tmp & BIT(NAK_OUT_PACKETS)) == 0)
return 0;
......@@ -688,7 +684,7 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
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;
......@@ -703,20 +699,20 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
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 (&regs->ep_data);
cpu_to_le32s (&tmp);
put_unaligned (tmp, (u32 *)buf);
tmp = readl(&regs->ep_data);
cpu_to_le32s(&tmp);
put_unaligned(tmp, (u32 *)buf);
buf += 4;
count -= 4;
}
if (count) {
tmp = readl (&regs->ep_data);
tmp = readl(&regs->ep_data);
/* LE conversion is implicit here: */
do {
*buf++ = (u8) tmp;
......@@ -724,10 +720,10 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
} 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)
......@@ -735,8 +731,8 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
}
/* 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;
......@@ -762,7 +758,7 @@ fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid)
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);
}
......@@ -777,18 +773,18 @@ static const u32 dmactl_default =
/* 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);
......@@ -796,24 +792,24 @@ static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma)
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;
......@@ -822,24 +818,24 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
/* 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;
......@@ -858,8 +854,8 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
* (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
......@@ -868,12 +864,12 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
/* 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)
......@@ -892,7 +888,7 @@ static inline void ep_stop_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;
......@@ -908,16 +904,16 @@ queue_dma (struct net2280_ep *ep, struct net2280_request *req, int valid)
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;
......@@ -929,22 +925,22 @@ done (struct net2280_ep *ep, struct net2280_request *req, int 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;
......@@ -954,13 +950,13 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
/* 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;
......@@ -982,17 +978,17 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
}
#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)) &&
......@@ -1010,24 +1006,24 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
}
/* 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_
......@@ -1035,14 +1031,18 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
* _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 */
......@@ -1061,54 +1061,50 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
/* 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;
......@@ -1116,17 +1112,17 @@ static void scan_dma_completions (struct net2280_ep *ep)
* 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);
......@@ -1135,33 +1131,37 @@ static void scan_dma_completions (struct net2280_ep *ep)
* 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;
}
......@@ -1175,21 +1175,20 @@ static void restart_dma (struct net2280_ep *ep)
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;
......@@ -1211,20 +1210,20 @@ static void restart_dma (struct net2280_ep *ep)
}
}
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)
......@@ -1241,24 +1240,24 @@ static void abort_dma(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;
......@@ -1266,65 +1265,65 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_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)
......@@ -1333,30 +1332,30 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req)
}
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)
......@@ -1365,7 +1364,7 @@ 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)
......@@ -1374,13 +1373,13 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
== 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 */
......@@ -1388,44 +1387,41 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
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)
......@@ -1439,19 +1435,18 @@ net2280_fifo_status (struct usb_ep *_ep)
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 = {
......@@ -1472,7 +1467,7 @@ 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;
......@@ -1480,14 +1475,14 @@ static int net2280_get_frame (struct usb_gadget *_gadget)
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;
......@@ -1495,19 +1490,19 @@ static int net2280_wakeup (struct usb_gadget *_gadget)
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;
......@@ -1515,10 +1510,10 @@ static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value)
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;
......@@ -1526,8 +1521,8 @@ static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value)
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;
}
......@@ -1540,17 +1535,17 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
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;
}
......@@ -1582,13 +1577,12 @@ static const struct usb_gadget_ops net2280_ops = {
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);
......@@ -1603,10 +1597,10 @@ static ssize_t registers_show(struct device *_dev,
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;
......@@ -1614,7 +1608,7 @@ static ssize_t registers_show(struct device *_dev,
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 "
......@@ -1623,19 +1617,19 @@ static ssize_t registers_show(struct device *_dev,
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";
......@@ -1646,11 +1640,11 @@ static ssize_t registers_show(struct device *_dev,
/* 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;
......@@ -1662,13 +1656,13 @@ static ssize_t registers_show(struct device *_dev,
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,
......@@ -1688,17 +1682,17 @@ static ssize_t registers_show(struct device *_dev,
? "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;
......@@ -1706,42 +1700,41 @@ static ssize_t registers_show(struct device *_dev,
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;
}
......@@ -1756,13 +1749,13 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
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;
......@@ -1773,40 +1766,40 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
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);
......@@ -1819,12 +1812,12 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
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;
......@@ -1834,7 +1827,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
}
done:
spin_unlock_irqrestore (&dev->lock, flags);
spin_unlock_irqrestore(&dev->lock, flags);
return PAGE_SIZE - size;
}
static DEVICE_ATTR_RO(queues);
......@@ -1842,8 +1835,8 @@ 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
......@@ -1853,33 +1846,33 @@ static DEVICE_ATTR_RO(queues);
* 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)
......@@ -2011,14 +2004,14 @@ static void usb_reset_228x(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++) {
......@@ -2027,7 +2020,7 @@ static void usb_reset_228x(struct net2280 *dev)
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 */
......@@ -2036,10 +2029,10 @@ static void usb_reset_228x(struct net2280 *dev)
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)
......@@ -2112,35 +2105,35 @@ static void usb_reinit_228x(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)
......@@ -2263,7 +2256,7 @@ static void ep0_start_228x(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
......@@ -2298,7 +2291,7 @@ static void ep0_start_228x(struct net2280 *dev)
&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)
......@@ -2377,20 +2370,22 @@ static int net2280_start(struct usb_gadget *_gadget,
|| !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)
......@@ -2399,30 +2394,29 @@ static int net2280_start(struct usb_gadget *_gadget,
/* ... 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;
......@@ -2433,9 +2427,9 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
/* 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) {
......@@ -2444,7 +2438,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
spin_lock(&dev->lock);
}
usb_reinit (dev);
usb_reinit(dev);
}
static int net2280_stop(struct usb_gadget *_gadget,
......@@ -2453,22 +2447,22 @@ 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 : "");
......@@ -2482,31 +2476,31 @@ static int net2280_stop(struct usb_gadget *_gadget,
* 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.
......@@ -2518,33 +2512,33 @@ static void handle_ep_small (struct net2280_ep *ep)
* 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 */
......@@ -2553,20 +2547,20 @@ static void handle_ep_small (struct net2280_ep *ep)
&& 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;
......@@ -2576,27 +2570,27 @@ static void handle_ep_small (struct net2280_ep *ep)
* 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;
......@@ -2606,37 +2600,37 @@ static void handle_ep_small (struct net2280_ep *ep)
/* 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) */
......@@ -2649,12 +2643,10 @@ static void handle_ep_small (struct net2280_ep *ep)
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)
......@@ -2663,7 +2655,7 @@ static void handle_ep_small (struct net2280_ep *ep)
/* 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) {
......@@ -2672,16 +2664,16 @@ static void handle_ep_small (struct net2280_ep *ep)
* 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);
}
}
......@@ -2692,18 +2684,17 @@ static void handle_ep_small (struct net2280_ep *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)
......@@ -3061,7 +3052,7 @@ static void handle_stat0_irqs_superspeed(struct net2280 *dev,
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;
......@@ -3070,12 +3061,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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;
......@@ -3096,19 +3087,20 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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;
......@@ -3139,8 +3131,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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);
......@@ -3165,12 +3157,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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.
......@@ -3190,21 +3182,21 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
/* 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;
......@@ -3217,7 +3209,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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",
......@@ -3230,7 +3223,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
!list_empty(&e->queue) && e->td_dma)
restart_dma(e);
}
allow_status (ep);
allow_status(ep);
goto next_endpoints;
}
break;
......@@ -3243,35 +3236,36 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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;
}
......@@ -3299,12 +3293,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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) | \
......@@ -3316,7 +3310,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
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;
......@@ -3331,17 +3325,17 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
* 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;
......@@ -3358,15 +3352,15 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
*/
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;
......@@ -3374,7 +3368,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
/* 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)
......@@ -3390,7 +3384,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
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;
......@@ -3404,15 +3398,15 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
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) {
......@@ -3427,11 +3421,11 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
*/
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
......@@ -3444,16 +3438,16 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
* 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;
......@@ -3463,13 +3457,13 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
* 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++;
......@@ -3479,21 +3473,21 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
* 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;
......@@ -3502,13 +3496,13 @@ static irqreturn_t net2280_irq (int irq, void *_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 */
......@@ -3517,54 +3511,54 @@ static irqreturn_t net2280_irq (int irq, void *_dev)
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");
}
......@@ -3573,7 +3567,7 @@ static void net2280_remove (struct pci_dev *pdev)
* 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;
......@@ -3584,14 +3578,14 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
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) ?
......@@ -3601,8 +3595,8 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
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;
......@@ -3611,10 +3605,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
* 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;
}
......@@ -3624,9 +3618,9 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
* 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;
}
......@@ -3655,7 +3649,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
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) &
......@@ -3670,12 +3664,12 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
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;
}
......@@ -3684,9 +3678,9 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
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;
}
......@@ -3694,28 +3688,28 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
/* 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 */
......@@ -3729,22 +3723,23 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
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);
......@@ -3754,7 +3749,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
done:
if (dev)
net2280_remove (pdev);
net2280_remove(pdev);
return retval;
}
......@@ -3762,16 +3757,16 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
* 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)
......@@ -3781,7 +3776,7 @@ static void net2280_shutdown (struct pci_dev *pdev)
/*-------------------------------------------------------------------------*/
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,
......@@ -3814,7 +3809,7 @@ static const struct pci_device_id pci_ids [] = { {
},
{ /* 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 = {
......@@ -3830,6 +3825,6 @@ 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");
drivers/usb/gadget/net2280.h
View file @ fae3c158
......@@ -25,19 +25,18 @@
* caller must own the device lock.
*/
static inline u32
get_idx_reg (struct net2280_regs __iomem *regs, u32 index)
static inline u32 get_idx_reg(struct net2280_regs __iomem *regs, u32 index)
{
writel (index, &regs->idxaddr);
writel(index, &regs->idxaddr);
/* NOTE: synchs device/cpu memory views */
return readl (&regs->idxdata);
return readl(&regs->idxdata);
}
static inline void
set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value)
set_idx_reg(struct net2280_regs __iomem *regs, u32 index, u32 value)
{
writel (index, &regs->idxaddr);
writel (value, &regs->idxdata);
writel(index, &regs->idxaddr);
writel(value, &regs->idxdata);
/* posted, may not be visible yet */
}
......@@ -81,7 +80,7 @@ struct net2280_dma {
__le32 dmaaddr; /* the buffer */
__le32 dmadesc; /* next dma descriptor */
__le32 _reserved;
} __attribute__ ((aligned (16)));
} __aligned(16);
/*-------------------------------------------------------------------------*/
......@@ -113,7 +112,7 @@ struct net2280_ep {
responded : 1;
};
static inline void allow_status (struct net2280_ep *ep)
static inline void allow_status(struct net2280_ep *ep)
{
/* ep0 only */
writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) |
......@@ -152,7 +151,7 @@ struct net2280 {
struct usb_gadget gadget;
spinlock_t lock;
struct net2280_ep ep[9];
struct usb_gadget_driver *driver;
struct usb_gadget_driver *driver;
unsigned enabled : 1,
protocol_stall : 1,
softconnect : 1,
......@@ -185,10 +184,10 @@ struct net2280 {
struct usb338x_pl_regs __iomem *plregs;
struct pci_pool *requests;
// statistics...
/* statistics...*/
};
static inline void set_halt (struct net2280_ep *ep)
static inline void set_halt(struct net2280_ep *ep)
{
/* ep0 and bulk/intr endpoints */
writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) |
......@@ -198,7 +197,7 @@ static inline void set_halt (struct net2280_ep *ep)
&ep->regs->ep_rsp);
}
static inline void clear_halt (struct net2280_ep *ep)
static inline void clear_halt(struct net2280_ep *ep)
{
/* ep0 and bulk/intr endpoints */
writel(BIT(CLEAR_ENDPOINT_HALT) |
......@@ -250,7 +249,7 @@ static inline void clear_halt (struct net2280_ep *ep)
#ifdef USE_RDK_LEDS
static inline void net2280_led_init (struct net2280 *dev)
static inline void net2280_led_init(struct net2280 *dev)
{
/* LED3 (green) is on during USB activity. note erratum 0113. */
writel(BIT(GPIO3_LED_SELECT) |
......@@ -263,9 +262,9 @@ static inline void net2280_led_init (struct net2280 *dev)
/* indicate speed with bi-color LED 0/1 */
static inline
void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed)
void net2280_led_speed(struct net2280 *dev, enum usb_device_speed speed)
{
u32 val = readl (&dev->regs->gpioctl);
u32 val = readl(&dev->regs->gpioctl);
switch (speed) {
case USB_SPEED_SUPER: /* green + red */
val |= BIT(GPIO0_DATA) | BIT(GPIO1_DATA);
......@@ -282,25 +281,26 @@ void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed)
val &= ~(BIT(GPIO1_DATA) | BIT(GPIO0_DATA));
break;
}
writel (val, &dev->regs->gpioctl);
writel(val, &dev->regs->gpioctl);
}
/* indicate power with LED 2 */
static inline void net2280_led_active (struct net2280 *dev, int is_active)
static inline void net2280_led_active(struct net2280 *dev, int is_active)
{
u32 val = readl (&dev->regs->gpioctl);
u32 val = readl(&dev->regs->gpioctl);
// FIXME this LED never seems to turn on.
/* FIXME this LED never seems to turn on.*/
if (is_active)
val |= GPIO2_DATA;
else
val &= ~GPIO2_DATA;
writel (val, &dev->regs->gpioctl);
writel(val, &dev->regs->gpioctl);
}
static inline void net2280_led_shutdown (struct net2280 *dev)
static inline void net2280_led_shutdown(struct net2280 *dev)
{
/* turn off all four GPIO*_DATA bits */
writel (readl (&dev->regs->gpioctl) & ~0x0f,
writel(readl(&dev->regs->gpioctl) & ~0x0f,
&dev->regs->gpioctl);
}
......@@ -314,32 +314,32 @@ static inline void net2280_led_shutdown (struct net2280 *dev)
/*-------------------------------------------------------------------------*/
#define xprintk(dev,level,fmt,args...) \
printk(level "%s %s: " fmt , driver_name , \
pci_name(dev->pdev) , ## args)
#define xprintk(dev, level, fmt, args...) \
printk(level "%s %s: " fmt, driver_name, \
pci_name(dev->pdev), ## args)
#ifdef DEBUG
#undef DEBUG
#define DEBUG(dev,fmt,args...) \
xprintk(dev , KERN_DEBUG , fmt , ## args)
#define DEBUG(dev, fmt, args...) \
xprintk(dev, KERN_DEBUG, fmt, ## args)
#else
#define DEBUG(dev,fmt,args...) \
#define DEBUG(dev, fmt, args...) \
do { } while (0)
#endif /* DEBUG */
#endif /* DEBUG*/
#ifdef VERBOSE
#define VDEBUG DEBUG
#else
#define VDEBUG(dev,fmt,args...) \
#define VDEBUG(dev, fmt, args...) \
do { } while (0)
#endif /* VERBOSE */
#define ERROR(dev,fmt,args...) \
xprintk(dev , KERN_ERR , fmt , ## args)
#define WARNING(dev,fmt,args...) \
xprintk(dev , KERN_WARNING , fmt , ## args)
#define INFO(dev,fmt,args...) \
xprintk(dev , KERN_INFO , fmt , ## args)
#define ERROR(dev, fmt, args...) \
xprintk(dev, KERN_ERR, fmt, ## args)
#define WARNING(dev, fmt, args...) \
xprintk(dev, KERN_WARNING, fmt, ## args)
#define INFO(dev, fmt, args...) \
xprintk(dev, KERN_INFO, fmt, ## args)
/*-------------------------------------------------------------------------*/
......@@ -354,36 +354,36 @@ static inline void set_fifo_bytecount(struct net2280_ep *ep, unsigned count)
}
}
static inline void start_out_naking (struct net2280_ep *ep)
static inline void start_out_naking(struct net2280_ep *ep)
{
/* NOTE: hardware races lurk here, and PING protocol issues */
writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
/* synch with device */
readl (&ep->regs->ep_rsp);
readl(&ep->regs->ep_rsp);
}
#ifdef DEBUG
static inline void assert_out_naking (struct net2280_ep *ep, const char *where)
static inline void assert_out_naking(struct net2280_ep *ep, const char *where)
{
u32 tmp = readl (&ep->regs->ep_stat);
u32 tmp = readl(&ep->regs->ep_stat);
if ((tmp & BIT(NAK_OUT_PACKETS)) == 0) {
DEBUG (ep->dev, "%s %s %08x !NAK\n",
DEBUG(ep->dev, "%s %s %08x !NAK\n",
ep->ep.name, where, tmp);
writel(BIT(SET_NAK_OUT_PACKETS),
&ep->regs->ep_rsp);
}
}
#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep,__func__)
#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep, __func__)
#else
#define ASSERT_OUT_NAKING(ep) do {} while (0)
#endif
static inline void stop_out_naking (struct net2280_ep *ep)
static inline void stop_out_naking(struct net2280_ep *ep)
{
u32 tmp;
tmp = readl (&ep->regs->ep_stat);
tmp = readl(&ep->regs->ep_stat);
if ((tmp & BIT(NAK_OUT_PACKETS)) != 0)
writel(BIT(CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
}
......
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