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path: root/drivers/usb/gadget/s3c2410_udc.c
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Diffstat (limited to 'drivers/usb/gadget/s3c2410_udc.c')
-rw-r--r--drivers/usb/gadget/s3c2410_udc.c148
1 files changed, 74 insertions, 74 deletions
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index f2e51f50e528..c33e942d119c 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -12,6 +12,8 @@
* (at your option) any later version.
*/
+#define pr_fmt(fmt) "s3c2410_udc: " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
@@ -27,6 +29,7 @@
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/prefetch.h>
+#include <linux/io.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
@@ -35,7 +38,6 @@
#include <linux/usb/gadget.h>
#include <asm/byteorder.h>
-#include <asm/io.h>
#include <asm/irq.h>
#include <asm/unaligned.h>
#include <mach/irqs.h>
@@ -115,7 +117,7 @@ static int dprintk(int level, const char *fmt, ...)
sizeof(printk_buf)-len, fmt, args);
va_end(args);
- return printk(KERN_DEBUG "%s", printk_buf);
+ return pr_debug("%s", printk_buf);
}
#else
static int dprintk(int level, const char *fmt, ...)
@@ -125,10 +127,10 @@ static int dprintk(int level, const char *fmt, ...)
#endif
static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
{
- u32 addr_reg,pwr_reg,ep_int_reg,usb_int_reg;
+ u32 addr_reg, pwr_reg, ep_int_reg, usb_int_reg;
u32 ep_int_en_reg, usb_int_en_reg, ep0_csr;
- u32 ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2;
- u32 ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2;
+ u32 ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2;
+ u32 ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2;
addr_reg = udc_read(S3C2410_UDC_FUNC_ADDR_REG);
pwr_reg = udc_read(S3C2410_UDC_PWR_REG);
@@ -164,10 +166,10 @@ static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
"EP2_I_CSR2 : 0x%04X\n"
"EP2_O_CSR1 : 0x%04X\n"
"EP2_O_CSR2 : 0x%04X\n",
- addr_reg,pwr_reg,ep_int_reg,usb_int_reg,
+ addr_reg, pwr_reg, ep_int_reg, usb_int_reg,
ep_int_en_reg, usb_int_en_reg, ep0_csr,
- ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2,
- ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2
+ ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2,
+ ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2
);
return 0;
@@ -230,7 +232,7 @@ static inline void s3c2410_udc_set_ep0_de_out(void __iomem *base)
{
udc_writeb(base, S3C2410_UDC_INDEX_EP0, S3C2410_UDC_INDEX_REG);
- udc_writeb(base,(S3C2410_UDC_EP0_CSR_SOPKTRDY
+ udc_writeb(base, (S3C2410_UDC_EP0_CSR_SOPKTRDY
| S3C2410_UDC_EP0_CSR_DE),
S3C2410_UDC_EP0_CSR_REG);
}
@@ -263,7 +265,7 @@ static void s3c2410_udc_done(struct s3c2410_ep *ep,
list_del_init(&req->queue);
- if (likely (req->req.status == -EINPROGRESS))
+ if (likely(req->req.status == -EINPROGRESS))
req->req.status = status;
else
status = req->req.status;
@@ -280,9 +282,9 @@ static void s3c2410_udc_nuke(struct s3c2410_udc *udc,
if (&ep->queue == NULL)
return;
- while (!list_empty (&ep->queue)) {
+ while (!list_empty(&ep->queue)) {
struct s3c2410_request *req;
- req = list_entry (ep->queue.next, struct s3c2410_request,
+ req = list_entry(ep->queue.next, struct s3c2410_request,
queue);
s3c2410_udc_done(ep, req, status);
}
@@ -389,10 +391,10 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep,
if (idx == 0) {
/* Reset signal => no need to say 'data sent' */
- if (! (udc_read(S3C2410_UDC_USB_INT_REG)
+ if (!(udc_read(S3C2410_UDC_USB_INT_REG)
& S3C2410_UDC_USBINT_RESET))
s3c2410_udc_set_ep0_de_in(base_addr);
- ep->dev->ep0state=EP0_IDLE;
+ ep->dev->ep0state = EP0_IDLE;
} else {
udc_write(idx, S3C2410_UDC_INDEX_REG);
ep_csr = udc_read(S3C2410_UDC_IN_CSR1_REG);
@@ -406,7 +408,7 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep,
} else {
if (idx == 0) {
/* Reset signal => no need to say 'data sent' */
- if (! (udc_read(S3C2410_UDC_USB_INT_REG)
+ if (!(udc_read(S3C2410_UDC_USB_INT_REG)
& S3C2410_UDC_USBINT_RESET))
s3c2410_udc_set_ep0_ipr(base_addr);
} else {
@@ -442,7 +444,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
u8 *buf;
u32 ep_csr;
unsigned bufferspace;
- int is_last=1;
+ int is_last = 1;
unsigned avail;
int fifo_count = 0;
u32 idx;
@@ -510,7 +512,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
/* Only ep0 debug messages are interesting */
if (idx == 0)
dprintk(DEBUG_VERBOSE, "%s fifo count : %d [last %d]\n",
- __func__, fifo_count,is_last);
+ __func__, fifo_count, is_last);
if (is_last) {
if (idx == 0) {
@@ -542,7 +544,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
static int s3c2410_udc_read_fifo_crq(struct usb_ctrlrequest *crq)
{
- unsigned char *outbuf = (unsigned char*)crq;
+ unsigned char *outbuf = (unsigned char *)crq;
int bytes_read = 0;
udc_write(0, S3C2410_UDC_INDEX_REG);
@@ -648,7 +650,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
switch (crq->bRequest) {
case USB_REQ_SET_CONFIGURATION:
- dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ... \n");
+ dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ...\n");
if (crq->bRequestType == USB_RECIP_DEVICE) {
dev->req_config = 1;
@@ -657,7 +659,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
break;
case USB_REQ_SET_INTERFACE:
- dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ... \n");
+ dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ...\n");
if (crq->bRequestType == USB_RECIP_INTERFACE) {
dev->req_config = 1;
@@ -666,7 +668,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
break;
case USB_REQ_SET_ADDRESS:
- dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ... \n");
+ dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ...\n");
if (crq->bRequestType == USB_RECIP_DEVICE) {
tmp = crq->wValue & 0x7F;
@@ -679,13 +681,12 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
break;
case USB_REQ_GET_STATUS:
- dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ... \n");
+ dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ...\n");
s3c2410_udc_clear_ep0_opr(base_addr);
if (dev->req_std) {
- if (!s3c2410_udc_get_status(dev, crq)) {
+ if (!s3c2410_udc_get_status(dev, crq))
return;
- }
}
break;
@@ -750,7 +751,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
/* deferred i/o == no response yet */
} else if (dev->req_pending) {
dprintk(DEBUG_VERBOSE, "dev->req_pending... what now?\n");
- dev->req_pending=0;
+ dev->req_pending = 0;
}
dprintk(DEBUG_VERBOSE, "ep0state %s\n", ep0states[dev->ep0state]);
@@ -801,16 +802,14 @@ static void s3c2410_udc_handle_ep0(struct s3c2410_udc *dev)
case EP0_IN_DATA_PHASE: /* GET_DESCRIPTOR etc */
dprintk(DEBUG_NORMAL, "EP0_IN_DATA_PHASE ... what now?\n");
- if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req) {
+ if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req)
s3c2410_udc_write_fifo(ep, req);
- }
break;
case EP0_OUT_DATA_PHASE: /* SET_DESCRIPTOR etc */
dprintk(DEBUG_NORMAL, "EP0_OUT_DATA_PHASE ... what now?\n");
- if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req ) {
- s3c2410_udc_read_fifo(ep,req);
- }
+ if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req)
+ s3c2410_udc_read_fifo(ep, req);
break;
case EP0_END_XFER:
@@ -836,7 +835,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
u32 ep_csr1;
u32 idx;
- if (likely (!list_empty(&ep->queue)))
+ if (likely(!list_empty(&ep->queue)))
req = list_entry(ep->queue.next,
struct s3c2410_request, queue);
else
@@ -858,9 +857,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
return;
}
- if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req) {
- s3c2410_udc_write_fifo(ep,req);
- }
+ if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req)
+ s3c2410_udc_write_fifo(ep, req);
} else {
udc_write(idx, S3C2410_UDC_INDEX_REG);
ep_csr1 = udc_read(S3C2410_UDC_OUT_CSR1_REG);
@@ -873,9 +871,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
return;
}
- if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) {
- s3c2410_udc_read_fifo(ep,req);
- }
+ if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req)
+ s3c2410_udc_read_fifo(ep, req);
}
}
@@ -1057,7 +1054,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
struct s3c2410_ep *ep;
u32 max, tmp;
unsigned long flags;
- u32 csr1,csr2;
+ u32 csr1, csr2;
u32 int_en_reg;
ep = to_s3c2410_ep(_ep);
@@ -1073,7 +1070,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
max = usb_endpoint_maxp(desc) & 0x1fff;
- local_irq_save (flags);
+ local_irq_save(flags);
_ep->maxpacket = max & 0x7ff;
ep->ep.desc = desc;
ep->halted = 0;
@@ -1117,11 +1114,11 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
/* print some debug message */
tmp = desc->bEndpointAddress;
- dprintk (DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n",
- _ep->name,ep->num, tmp,
+ dprintk(DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n",
+ _ep->name, ep->num, tmp,
desc->bEndpointAddress & USB_DIR_IN ? "in" : "out", max);
- local_irq_restore (flags);
+ local_irq_restore(flags);
s3c2410_udc_set_halt(_ep, 0);
return 0;
@@ -1149,7 +1146,7 @@ static int s3c2410_udc_ep_disable(struct usb_ep *_ep)
ep->ep.desc = NULL;
ep->halted = 1;
- s3c2410_udc_nuke (ep->dev, ep, -ESHUTDOWN);
+ s3c2410_udc_nuke(ep->dev, ep, -ESHUTDOWN);
/* disable irqs */
int_en_reg = udc_read(S3C2410_UDC_EP_INT_EN_REG);
@@ -1170,16 +1167,16 @@ s3c2410_udc_alloc_request(struct usb_ep *_ep, gfp_t mem_flags)
{
struct s3c2410_request *req;
- dprintk(DEBUG_VERBOSE,"%s(%p,%d)\n", __func__, _ep, mem_flags);
+ dprintk(DEBUG_VERBOSE, "%s(%p,%d)\n", __func__, _ep, mem_flags);
if (!_ep)
return NULL;
- req = kzalloc (sizeof(struct s3c2410_request), mem_flags);
+ req = kzalloc(sizeof(struct s3c2410_request), mem_flags);
if (!req)
return NULL;
- INIT_LIST_HEAD (&req->queue);
+ INIT_LIST_HEAD(&req->queue);
return &req->req;
}
@@ -1197,7 +1194,7 @@ s3c2410_udc_free_request(struct usb_ep *_ep, struct usb_request *_req)
if (!ep || !_req || (!ep->ep.desc && _ep->name != ep0name))
return;
- WARN_ON (!list_empty (&req->queue));
+ WARN_ON(!list_empty(&req->queue));
kfree(req);
}
@@ -1220,12 +1217,12 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
}
dev = ep->dev;
- if (unlikely (!dev->driver
+ if (unlikely(!dev->driver
|| dev->gadget.speed == USB_SPEED_UNKNOWN)) {
return -ESHUTDOWN;
}
- local_irq_save (flags);
+ local_irq_save(flags);
if (unlikely(!_req || !_req->complete
|| !_req->buf || !list_empty(&req->queue))) {
@@ -1233,7 +1230,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
dprintk(DEBUG_NORMAL, "%s: 1 X X X\n", __func__);
else {
dprintk(DEBUG_NORMAL, "%s: 0 %01d %01d %01d\n",
- __func__, !_req->complete,!_req->buf,
+ __func__, !_req->complete, !_req->buf,
!list_empty(&req->queue));
}
@@ -1299,7 +1296,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
}
/* pio or dma irq handler advances the queue. */
- if (likely (req != 0))
+ if (likely(req))
list_add_tail(&req->queue, &ep->queue);
local_irq_restore(flags);
@@ -1329,11 +1326,11 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req)
udc = to_s3c2410_udc(ep->gadget);
- local_irq_save (flags);
+ local_irq_save(flags);
- list_for_each_entry (req, &ep->queue, queue) {
+ list_for_each_entry(req, &ep->queue, queue) {
if (&req->req == _req) {
- list_del_init (&req->queue);
+ list_del_init(&req->queue);
_req->status = -ECONNRESET;
retval = 0;
break;
@@ -1348,7 +1345,7 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req)
s3c2410_udc_done(ep, req, -ECONNRESET);
}
- local_irq_restore (flags);
+ local_irq_restore(flags);
return retval;
}
@@ -1367,7 +1364,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
return -EINVAL;
}
- local_irq_save (flags);
+ local_irq_save(flags);
idx = ep->bEndpointAddress & 0x7F;
@@ -1376,7 +1373,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
s3c2410_udc_set_ep0_de_out(base_addr);
} else {
udc_write(idx, S3C2410_UDC_INDEX_REG);
- ep_csr = udc_read((ep->bEndpointAddress &USB_DIR_IN)
+ ep_csr = udc_read((ep->bEndpointAddress & USB_DIR_IN)
? S3C2410_UDC_IN_CSR1_REG
: S3C2410_UDC_OUT_CSR1_REG);
@@ -1404,7 +1401,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
}
ep->halted = value ? 1 : 0;
- local_irq_restore (flags);
+ local_irq_restore(flags);
return 0;
}
@@ -1484,9 +1481,9 @@ static int s3c2410_udc_set_pullup(struct s3c2410_udc *udc, int is_on)
}
s3c2410_udc_disable(udc);
}
- }
- else
+ } else {
return -EOPNOTSUPP;
+ }
return 0;
}
@@ -1542,7 +1539,7 @@ static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
}
static int s3c2410_udc_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *));
+ int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
static int s3c2410_udc_stop(struct usb_gadget_driver *driver);
static const struct usb_gadget_ops s3c2410_ops = {
@@ -1617,20 +1614,20 @@ static void s3c2410_udc_reinit(struct s3c2410_udc *dev)
u32 i;
/* device/ep0 records init */
- INIT_LIST_HEAD (&dev->gadget.ep_list);
- INIT_LIST_HEAD (&dev->gadget.ep0->ep_list);
+ INIT_LIST_HEAD(&dev->gadget.ep_list);
+ INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
dev->ep0state = EP0_IDLE;
for (i = 0; i < S3C2410_ENDPOINTS; i++) {
struct s3c2410_ep *ep = &dev->ep[i];
if (i != 0)
- list_add_tail (&ep->ep.ep_list, &dev->gadget.ep_list);
+ list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
ep->dev = dev;
ep->ep.desc = NULL;
ep->halted = 0;
- INIT_LIST_HEAD (&ep->queue);
+ INIT_LIST_HEAD(&ep->queue);
}
}
@@ -1668,7 +1665,7 @@ static void s3c2410_udc_enable(struct s3c2410_udc *dev)
}
static int s3c2410_udc_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *))
+ int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
{
struct s3c2410_udc *udc = the_controller;
int retval;
@@ -1683,13 +1680,13 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
return -EBUSY;
if (!bind || !driver->setup || driver->max_speed < USB_SPEED_FULL) {
- printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n",
+ dev_err(&udc->gadget.dev, "Invalid driver: bind %p setup %p speed %d\n",
bind, driver->setup, driver->max_speed);
return -EINVAL;
}
#if defined(MODULE)
if (!driver->unbind) {
- printk(KERN_ERR "Invalid driver: no unbind method\n");
+ dev_err(&udc->gadget.dev, "Invalid driver: no unbind method\n");
return -EINVAL;
}
#endif
@@ -1699,15 +1696,17 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
udc->gadget.dev.driver = &driver->driver;
/* Bind the driver */
- if ((retval = device_add(&udc->gadget.dev)) != 0) {
- printk(KERN_ERR "Error in device_add() : %d\n",retval);
+ retval = device_add(&udc->gadget.dev);
+ if (retval) {
+ dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval);
goto register_error;
}
dprintk(DEBUG_NORMAL, "binding gadget driver '%s'\n",
driver->driver.name);
- if ((retval = bind(&udc->gadget)) != 0) {
+ retval = bind(&udc->gadget, driver);
+ if (retval) {
device_del(&udc->gadget.dev);
goto register_error;
}
@@ -1865,7 +1864,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
memory.ep[4].fifo_size = S3C2440_EP_FIFO_SIZE;
}
- spin_lock_init (&udc->lock);
+ spin_lock_init(&udc->lock);
udc_info = pdev->dev.platform_data;
rsrc_start = S3C2410_PA_USBDEV;
@@ -2028,7 +2027,8 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
}
#ifdef CONFIG_PM
-static int s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message)
+static int
+s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message)
{
s3c2410_udc_command(S3C2410_UDC_P_DISABLE);
@@ -2073,7 +2073,7 @@ static int __init udc_init(void)
s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL);
if (IS_ERR(s3c2410_udc_debugfs_root)) {
- printk(KERN_ERR "%s: debugfs dir creation failed %ld\n",
+ pr_err("%s: debugfs dir creation failed %ld\n",
gadget_name, PTR_ERR(s3c2410_udc_debugfs_root));
s3c2410_udc_debugfs_root = NULL;
}