*/
#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/smp_lock.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/list.h>
#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/io.h>
#include <linux/platform_device.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb_gadget.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/system.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
#include "m66592-udc.h"
-MODULE_DESCRIPTION("M66592 USB gadget driiver");
+
+MODULE_DESCRIPTION("M66592 USB gadget driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yoshihiro Shimoda");
+MODULE_ALIAS("platform:m66592_udc");
-#define DRIVER_VERSION "9 May 2007"
+#define DRIVER_VERSION "18 Oct 2007"
/* module parameters */
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+static unsigned short endian = M66592_LITTLE;
+module_param(endian, ushort, 0644);
+MODULE_PARM_DESC(endian, "data endian: big=0, little=0 (default=0)");
+#else
static unsigned short clock = M66592_XTAL24;
module_param(clock, ushort, 0644);
-MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0(default=16384)");
+MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 "
+ "(default=16384)");
+
static unsigned short vif = M66592_LDRV;
module_param(vif, ushort, 0644);
-MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0(default=32768)");
-static unsigned short endian = 0;
+MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0 (default=32768)");
+
+static unsigned short endian;
module_param(endian, ushort, 0644);
-MODULE_PARM_DESC(endian, "data endian: big=256, little=0(default=0)");
+MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)");
+
static unsigned short irq_sense = M66592_INTL;
module_param(irq_sense, ushort, 0644);
-MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=2, falling edge=0(default=2)");
+MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=2, falling edge=0 "
+ "(default=2)");
+#endif
static const char udc_name[] = "m66592_udc";
static const char *m66592_ep_name[] = {
gfp_t gfp_flags);
static void transfer_complete(struct m66592_ep *ep,
- struct m66592_request *req,
- int status);
+ struct m66592_request *req, int status);
+
/*-------------------------------------------------------------------------*/
static inline u16 get_usb_speed(struct m66592 *m66592)
{
}
static void enable_pipe_irq(struct m66592 *m66592, u16 pipenum,
- unsigned long reg)
+ unsigned long reg)
{
u16 tmp;
tmp = m66592_read(m66592, M66592_INTENB0);
m66592_bclr(m66592, M66592_BEMPE | M66592_NRDYE | M66592_BRDYE,
- M66592_INTENB0);
+ M66592_INTENB0);
m66592_bset(m66592, (1 << pipenum), reg);
m66592_write(m66592, tmp, M66592_INTENB0);
}
static void disable_pipe_irq(struct m66592 *m66592, u16 pipenum,
- unsigned long reg)
+ unsigned long reg)
{
u16 tmp;
tmp = m66592_read(m66592, M66592_INTENB0);
m66592_bclr(m66592, M66592_BEMPE | M66592_NRDYE | M66592_BRDYE,
- M66592_INTENB0);
+ M66592_INTENB0);
m66592_bclr(m66592, (1 << pipenum), reg);
m66592_write(m66592, tmp, M66592_INTENB0);
}
{
m66592_bset(m66592, M66592_CTRE, M66592_INTENB0);
m66592_bset(m66592, M66592_WDST | M66592_RDST | M66592_CMPL,
- M66592_INTENB0);
+ M66592_INTENB0);
m66592_bset(m66592, M66592_BEMPE | M66592_BRDYE, M66592_INTENB0);
m66592_bset(m66592, M66592_DPRPU, M66592_SYSCFG);
}
static void m66592_usb_disconnect(struct m66592 *m66592)
+__releases(m66592->lock)
+__acquires(m66592->lock)
{
m66592_bclr(m66592, M66592_CTRE, M66592_INTENB0);
m66592_bclr(m66592, M66592_WDST | M66592_RDST | M66592_CMPL,
- M66592_INTENB0);
+ M66592_INTENB0);
m66592_bclr(m66592, M66592_BEMPE | M66592_BRDYE, M66592_INTENB0);
m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
offset = get_pipectr_addr(pipenum);
pid = m66592_read(m66592, offset) & M66592_PID;
} else
- printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+ pr_err("unexpect pipe num (%d)\n", pipenum);
return pid;
}
static inline void control_reg_set_pid(struct m66592 *m66592, u16 pipenum,
- u16 pid)
+ u16 pid)
{
unsigned long offset;
offset = get_pipectr_addr(pipenum);
m66592_mdfy(m66592, pid, M66592_PID, offset);
} else
- printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+ pr_err("unexpect pipe num (%d)\n", pipenum);
}
static inline void pipe_start(struct m66592 *m66592, u16 pipenum)
offset = get_pipectr_addr(pipenum);
ret = m66592_read(m66592, offset);
} else
- printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+ pr_err("unexpect pipe num (%d)\n", pipenum);
return ret;
}
offset = get_pipectr_addr(pipenum);
m66592_bset(m66592, M66592_SQCLR, offset);
} else
- printk(KERN_ERR "unexpect pipe num(%d)\n", pipenum);
+ pr_err("unexpect pipe num(%d)\n", pipenum);
}
static inline int get_buffer_size(struct m66592 *m66592, u16 pipenum)
}
static int pipe_buffer_setting(struct m66592 *m66592,
- struct m66592_pipe_info *info)
+ struct m66592_pipe_info *info)
{
u16 bufnum = 0, buf_bsize = 0;
u16 pipecfg = 0;
break;
}
if (m66592->bi_bufnum > M66592_MAX_BUFNUM) {
- printk(KERN_ERR "m66592 pipe memory is insufficient(%d)\n",
- m66592->bi_bufnum);
+ pr_err("m66592 pipe memory is insufficient(%d)\n",
+ m66592->bi_bufnum);
return -ENOMEM;
}
if (info->type == M66592_BULK)
m66592->bulk--;
} else
- printk(KERN_ERR "ep_release: unexpect pipenum (%d)\n",
- info->pipe);
+ pr_err("ep_release: unexpect pipenum (%d)\n",
+ info->pipe);
}
static void pipe_initialize(struct m66592_ep *ep)
}
static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
- const struct usb_endpoint_descriptor *desc,
- u16 pipenum, int dma)
+ const struct usb_endpoint_descriptor *desc,
+ u16 pipenum, int dma)
{
if ((pipenum != 0) && dma) {
if (m66592->num_dma == 0) {
ep->fifosel = M66592_D0FIFOSEL;
ep->fifoctr = M66592_D0FIFOCTR;
ep->fifotrn = M66592_D0FIFOTRN;
+#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
} else if (m66592->num_dma == 1) {
m66592->num_dma++;
ep->use_dma = 1;
ep->fifosel = M66592_D1FIFOSEL;
ep->fifoctr = M66592_D1FIFOCTR;
ep->fifotrn = M66592_D1FIFOTRN;
+#endif
} else {
ep->use_dma = 0;
ep->fifoaddr = M66592_CFIFO;
ep->pipectr = get_pipectr_addr(pipenum);
ep->pipenum = pipenum;
- ep->ep.maxpacket = desc->wMaxPacketSize;
+ ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
m66592->pipenum2ep[pipenum] = ep;
m66592->epaddr2ep[desc->bEndpointAddress&USB_ENDPOINT_NUMBER_MASK] = ep;
INIT_LIST_HEAD(&ep->queue);
}
static int alloc_pipe_config(struct m66592_ep *ep,
- const struct usb_endpoint_descriptor *desc)
+ const struct usb_endpoint_descriptor *desc)
{
struct m66592 *m66592 = ep->m66592;
struct m66592_pipe_info info;
BUG_ON(ep->pipenum);
- switch(desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
case USB_ENDPOINT_XFER_BULK:
if (m66592->bulk >= M66592_MAX_NUM_BULK) {
if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
- printk(KERN_ERR "bulk pipe is insufficient\n");
+ pr_err("bulk pipe is insufficient\n");
return -ENODEV;
} else {
- info.pipe = M66592_BASE_PIPENUM_ISOC +
- m66592->isochronous;
+ info.pipe = M66592_BASE_PIPENUM_ISOC
+ + m66592->isochronous;
counter = &m66592->isochronous;
}
} else {
break;
case USB_ENDPOINT_XFER_INT:
if (m66592->interrupt >= M66592_MAX_NUM_INT) {
- printk(KERN_ERR "interrupt pipe is insufficient\n");
+ pr_err("interrupt pipe is insufficient\n");
return -ENODEV;
}
info.pipe = M66592_BASE_PIPENUM_INT + m66592->interrupt;
break;
case USB_ENDPOINT_XFER_ISOC:
if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
- printk(KERN_ERR "isochronous pipe is insufficient\n");
+ pr_err("isochronous pipe is insufficient\n");
return -ENODEV;
}
info.pipe = M66592_BASE_PIPENUM_ISOC + m66592->isochronous;
counter = &m66592->isochronous;
break;
default:
- printk(KERN_ERR "unexpect xfer type\n");
+ pr_err("unexpect xfer type\n");
return -EINVAL;
}
ep->type = info.type;
info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
- info.maxpacket = desc->wMaxPacketSize;
+ info.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
info.interval = desc->bInterval;
if (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
info.dir_in = 1;
ret = pipe_buffer_setting(m66592, &info);
if (ret < 0) {
- printk(KERN_ERR "pipe_buffer_setting fail\n");
+ pr_err("pipe_buffer_setting fail\n");
return ret;
}
pipe_change(m66592, ep->pipenum);
m66592_mdfy(m66592, M66592_ISEL | M66592_PIPE0,
- (M66592_ISEL | M66592_CURPIPE),
- M66592_CFIFOSEL);
+ (M66592_ISEL | M66592_CURPIPE),
+ M66592_CFIFOSEL);
m66592_write(m66592, M66592_BCLR, ep->fifoctr);
if (req->req.length == 0) {
m66592_bset(m66592, M66592_BVAL, ep->fifoctr);
if (ep->pipenum == 0) {
m66592_mdfy(m66592, M66592_PIPE0,
- (M66592_ISEL | M66592_CURPIPE),
- M66592_CFIFOSEL);
+ (M66592_ISEL | M66592_CURPIPE),
+ M66592_CFIFOSEL);
m66592_write(m66592, M66592_BCLR, ep->fifoctr);
pipe_start(m66592, pipenum);
pipe_irq_enable(m66592, pipenum);
pipe_change(m66592, pipenum);
m66592_bset(m66592, M66592_TRENB, ep->fifosel);
m66592_write(m66592,
- (req->req.length + ep->ep.maxpacket - 1) /
- ep->ep.maxpacket, ep->fifotrn);
+ (req->req.length + ep->ep.maxpacket - 1)
+ / ep->ep.maxpacket,
+ ep->fifotrn);
}
pipe_start(m66592, pipenum); /* trigger once */
pipe_irq_enable(m66592, pipenum);
control_end(ep->m66592, 0);
break;
default:
- printk(KERN_ERR "start_ep0: unexpect ctsq(%x)\n", ctsq);
+ pr_err("start_ep0: unexpect ctsq(%x)\n", ctsq);
break;
}
}
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+static void init_controller(struct m66592 *m66592)
+{
+ m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
+ m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
+ m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
+ m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
+
+ /* This is a workaound for SH7722 2nd cut */
+ m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
+ m66592_bset(m66592, 0x1000, M66592_TESTMODE);
+ m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
+
+ m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
+
+ m66592_write(m66592, 0, M66592_CFBCFG);
+ m66592_write(m66592, 0, M66592_D0FBCFG);
+ m66592_bset(m66592, endian, M66592_CFBCFG);
+ m66592_bset(m66592, endian, M66592_D0FBCFG);
+}
+#else /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
static void init_controller(struct m66592 *m66592)
{
m66592_bset(m66592, (vif & M66592_LDRV) | (endian & M66592_BIGEND),
- M66592_PINCFG);
+ M66592_PINCFG);
m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
m66592_mdfy(m66592, clock & M66592_XTAL, M66592_XTAL, M66592_SYSCFG);
m66592_bset(m66592, irq_sense & M66592_INTL, M66592_INTENB1);
m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
- M66592_DMA0CFG);
+ M66592_DMA0CFG);
}
+#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
static void disable_controller(struct m66592 *m66592)
{
+#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
+#endif
}
static void m66592_start_xclock(struct m66592 *m66592)
{
+#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
u16 tmp;
tmp = m66592_read(m66592, M66592_SYSCFG);
if (!(tmp & M66592_XCKE))
m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
+#endif
}
/*-------------------------------------------------------------------------*/
static void transfer_complete(struct m66592_ep *ep,
- struct m66592_request *req,
- int status)
+ struct m66592_request *req, int status)
+__releases(m66592->lock)
+__acquires(m66592->lock)
{
int restart = 0;
if (!list_empty(&ep->queue))
restart = 1;
- if (likely(req->req.complete))
- req->req.complete(&ep->ep, &req->req);
+ spin_unlock(&ep->m66592->lock);
+ req->req.complete(&ep->ep, &req->req);
+ spin_lock(&ep->m66592->lock);
if (restart) {
req = list_entry(ep->queue.next, struct m66592_request, queue);
static void irq_ep0_write(struct m66592_ep *ep, struct m66592_request *req)
{
int i;
- volatile u16 tmp;
+ u16 tmp;
unsigned bufsize;
size_t size;
void *buf;
do {
tmp = m66592_read(m66592, ep->fifoctr);
if (i++ > 100000) {
- printk(KERN_ERR "pipe0 is busy. maybe cpu i/o bus"
+ pr_err("pipe0 is busy. maybe cpu i/o bus "
"conflict. please power off this controller.");
return;
}
req->req.actual += size;
/* check transfer finish */
- if ((!req->req.zero && (req->req.actual == req->req.length)) ||
- (size % ep->ep.maxpacket) || (size == 0)) {
+ if ((!req->req.zero && (req->req.actual == req->req.length))
+ || (size % ep->ep.maxpacket)
+ || (size == 0)) {
disable_irq_ready(m66592, pipenum);
disable_irq_empty(m66592, pipenum);
} else {
if (unlikely((tmp & M66592_FRDY) == 0)) {
pipe_stop(m66592, pipenum);
pipe_irq_disable(m66592, pipenum);
- printk(KERN_ERR "write fifo not ready. pipnum=%d\n", pipenum);
+ pr_err("write fifo not ready. pipnum=%d\n", pipenum);
return;
}
/* write fifo */
if (req->req.buf) {
m66592_write_fifo(m66592, ep->fifoaddr, buf, size);
- if ((size == 0) || ((size % ep->ep.maxpacket) != 0) ||
- ((bufsize != ep->ep.maxpacket) && (bufsize > size)))
+ if ((size == 0)
+ || ((size % ep->ep.maxpacket) != 0)
+ || ((bufsize != ep->ep.maxpacket)
+ && (bufsize > size)))
m66592_bset(m66592, M66592_BVAL, ep->fifoctr);
}
/* update parameters */
req->req.actual += size;
/* check transfer finish */
- if ((!req->req.zero && (req->req.actual == req->req.length)) ||
- (size % ep->ep.maxpacket) || (size == 0)) {
+ if ((!req->req.zero && (req->req.actual == req->req.length))
+ || (size % ep->ep.maxpacket)
+ || (size == 0)) {
disable_irq_ready(m66592, pipenum);
enable_irq_empty(m66592, pipenum);
} else {
req->req.status = -EPIPE;
pipe_stop(m66592, pipenum);
pipe_irq_disable(m66592, pipenum);
- printk(KERN_ERR "read fifo not ready");
+ pr_err("read fifo not ready");
return;
}
req->req.actual += size;
/* check transfer finish */
- if ((!req->req.zero && (req->req.actual == req->req.length)) ||
- (size % ep->ep.maxpacket) || (size == 0)) {
+ if ((!req->req.zero && (req->req.actual == req->req.length))
+ || (size % ep->ep.maxpacket)
+ || (size == 0)) {
pipe_stop(m66592, pipenum);
pipe_irq_disable(m66592, pipenum);
finish = 1;
if ((status & M66592_BRDY0) && (enb & M66592_BRDY0)) {
m66592_write(m66592, ~M66592_BRDY0, M66592_BRDYSTS);
m66592_mdfy(m66592, M66592_PIPE0, M66592_CURPIPE,
- M66592_CFIFOSEL);
+ M66592_CFIFOSEL);
ep = &m66592->ep[0];
req = list_entry(ep->queue.next, struct m66592_request, queue);
}
static void get_status(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
+__releases(m66592->lock)
+__acquires(m66592->lock)
{
struct m66592_ep *ep;
u16 pid;
u16 status = 0;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
switch (ctrl->bRequestType & USB_RECIP_MASK) {
case USB_RECIP_DEVICE:
- status = 1; /* selfpower */
+ status = 1 << USB_DEVICE_SELF_POWERED;
break;
case USB_RECIP_INTERFACE:
status = 0;
break;
case USB_RECIP_ENDPOINT:
- ep = m66592->epaddr2ep[ctrl->wIndex&USB_ENDPOINT_NUMBER_MASK];
+ ep = m66592->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
pid = control_reg_get_pid(m66592, ep->pipenum);
if (pid == M66592_PID_STALL)
- status = 1;
+ status = 1 << USB_ENDPOINT_HALT;
else
status = 0;
break;
return; /* exit */
}
- *m66592->ep0_buf = status;
- m66592->ep0_req->buf = m66592->ep0_buf;
+ m66592->ep0_data = cpu_to_le16(status);
+ m66592->ep0_req->buf = &m66592->ep0_data;
m66592->ep0_req->length = 2;
+ /* AV: what happens if we get called again before that gets through? */
+ spin_unlock(&m66592->lock);
m66592_queue(m66592->gadget.ep0, m66592->ep0_req, GFP_KERNEL);
+ spin_lock(&m66592->lock);
}
static void clear_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
case USB_RECIP_ENDPOINT: {
struct m66592_ep *ep;
struct m66592_request *req;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
- ep = m66592->epaddr2ep[ctrl->wIndex&USB_ENDPOINT_NUMBER_MASK];
+ ep = m66592->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
pipe_stop(m66592, ep->pipenum);
control_reg_sqclr(m66592, ep->pipenum);
break;
case USB_RECIP_ENDPOINT: {
struct m66592_ep *ep;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
- ep = m66592->epaddr2ep[ctrl->wIndex&USB_ENDPOINT_NUMBER_MASK];
+ ep = m66592->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
pipe_stall(m66592, ep->pipenum);
control_end(m66592, 1);
break;
default:
m66592->gadget.speed = USB_SPEED_UNKNOWN;
- printk(KERN_ERR "USB speed unknown\n");
+ pr_err("USB speed unknown\n");
}
}
}
if (m66592->old_dvsq == M66592_DS_CNFG && dvsq != M66592_DS_CNFG)
m66592_update_usb_speed(m66592);
- if ((dvsq == M66592_DS_CNFG || dvsq == M66592_DS_ADDS) &&
- m66592->gadget.speed == USB_SPEED_UNKNOWN)
+ if ((dvsq == M66592_DS_CNFG || dvsq == M66592_DS_ADDS)
+ && m66592->gadget.speed == USB_SPEED_UNKNOWN)
m66592_update_usb_speed(m66592);
m66592->old_dvsq = dvsq;
}
static void irq_control_stage(struct m66592 *m66592)
+__releases(m66592->lock)
+__acquires(m66592->lock)
{
struct usb_ctrlrequest ctrl;
u16 ctsq;
case M66592_CS_WRDS:
case M66592_CS_WRND:
if (setup_packet(m66592, &ctrl)) {
+ spin_unlock(&m66592->lock);
if (m66592->driver->setup(&m66592->gadget, &ctrl) < 0)
pipe_stall(m66592, 0);
+ spin_lock(&m66592->lock);
}
break;
case M66592_CS_RDSS:
control_end(m66592, 0);
break;
default:
- printk(KERN_ERR "ctrl_stage: unexpect ctsq(%x)\n", ctsq);
+ pr_err("ctrl_stage: unexpect ctsq(%x)\n", ctsq);
break;
}
}
u16 savepipe;
u16 mask0;
+ spin_lock(&m66592->lock);
+
intsts0 = m66592_read(m66592, M66592_INTSTS0);
intenb0 = m66592_read(m66592, M66592_INTENB0);
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+ if (!intsts0 && !intenb0) {
+ /*
+ * When USB clock stops, it cannot read register. Even if a
+ * clock stops, the interrupt occurs. So this driver turn on
+ * a clock by this timing and do re-reading of register.
+ */
+ m66592_start_xclock(m66592);
+ intsts0 = m66592_read(m66592, M66592_INTSTS0);
+ intenb0 = m66592_read(m66592, M66592_INTENB0);
+ }
+#endif
+
savepipe = m66592_read(m66592, M66592_CFIFOSEL);
mask0 = intsts0 & intenb0;
bempenb = m66592_read(m66592, M66592_BEMPENB);
if (mask0 & M66592_VBINT) {
- m66592_write(m66592, (u16)~M66592_VBINT,
- M66592_INTSTS0);
+ m66592_write(m66592, 0xffff & ~M66592_VBINT,
+ M66592_INTSTS0);
m66592_start_xclock(m66592);
/* start vbus sampling */
m66592->old_vbus = m66592_read(m66592, M66592_INTSTS0)
- & M66592_VBSTS;
+ & M66592_VBSTS;
m66592->scount = M66592_MAX_SAMPLING;
mod_timer(&m66592->timer,
- jiffies + msecs_to_jiffies(50));
+ jiffies + msecs_to_jiffies(50));
}
if (intsts0 & M66592_DVSQ)
irq_device_state(m66592);
- if ((intsts0 & M66592_BRDY) && (intenb0 & M66592_BRDYE) &&
- (brdysts & brdyenb)) {
+ if ((intsts0 & M66592_BRDY) && (intenb0 & M66592_BRDYE)
+ && (brdysts & brdyenb)) {
irq_pipe_ready(m66592, brdysts, brdyenb);
}
- if ((intsts0 & M66592_BEMP) && (intenb0 & M66592_BEMPE) &&
- (bempsts & bempenb)) {
+ if ((intsts0 & M66592_BEMP) && (intenb0 & M66592_BEMPE)
+ && (bempsts & bempenb)) {
irq_pipe_empty(m66592, bempsts, bempenb);
}
m66592_write(m66592, savepipe, M66592_CFIFOSEL);
+ spin_unlock(&m66592->lock);
return IRQ_HANDLED;
}
m66592_usb_disconnect(m66592);
} else {
mod_timer(&m66592->timer,
- jiffies + msecs_to_jiffies(50));
+ jiffies + msecs_to_jiffies(50));
}
} else {
m66592->scount = M66592_MAX_SAMPLING;
m66592->old_vbus = tmp;
mod_timer(&m66592->timer,
- jiffies + msecs_to_jiffies(50));
+ jiffies + msecs_to_jiffies(50));
}
}
spin_unlock_irqrestore(&m66592->lock, flags);
kfree(req);
}
-static void *m66592_alloc_buffer(struct usb_ep *_ep, unsigned bytes,
- dma_addr_t *dma, gfp_t gfp_flags)
-{
- void *buf;
-
- buf = kzalloc(bytes, gfp_flags);
- if (dma)
- *dma = virt_to_bus(buf);
-
- return buf;
-}
-
-static void m66592_free_buffer(struct usb_ep *_ep, void *buf,
- dma_addr_t dma, unsigned bytes)
-{
- kfree(buf);
-}
-
static int m66592_queue(struct usb_ep *_ep, struct usb_request *_req,
gfp_t gfp_flags)
{
req->req.actual = 0;
req->req.status = -EINPROGRESS;
- if (ep->desc == 0) /* control */
+ if (ep->desc == NULL) /* control */
start_ep0(ep, req);
else {
if (request && !ep->busy)
return ret;
}
-static int m66592_fifo_status(struct usb_ep *_ep)
-{
- return -EOPNOTSUPP;
-}
-
static void m66592_fifo_flush(struct usb_ep *_ep)
{
struct m66592_ep *ep;
.alloc_request = m66592_alloc_request,
.free_request = m66592_free_request,
- .alloc_buffer = m66592_alloc_buffer,
- .free_buffer = m66592_free_buffer,
-
.queue = m66592_queue,
.dequeue = m66592_dequeue,
.set_halt = m66592_set_halt,
- .fifo_status = m66592_fifo_status,
.fifo_flush = m66592_fifo_flush,
};
struct m66592 *m66592 = the_controller;
int retval;
- if (!driver ||
- driver->speed != USB_SPEED_HIGH ||
- !driver->bind ||
- !driver->unbind ||
- !driver->setup)
+ if (!driver
+ || driver->speed != USB_SPEED_HIGH
+ || !driver->bind
+ || !driver->setup)
return -EINVAL;
if (!m66592)
return -ENODEV;
retval = device_add(&m66592->gadget.dev);
if (retval) {
- printk(KERN_ERR "device_add error (%d)\n", retval);
+ pr_err("device_add error (%d)\n", retval);
goto error;
}
retval = driver->bind (&m66592->gadget);
if (retval) {
- printk(KERN_ERR "bind to driver error (%d)\n", retval);
+ pr_err("bind to driver error (%d)\n", retval);
device_del(&m66592->gadget.dev);
goto error;
}
m66592->old_vbus = m66592_read(m66592,
M66592_INTSTS0) & M66592_VBSTS;
m66592->scount = M66592_MAX_SAMPLING;
- mod_timer(&m66592->timer,
- jiffies + msecs_to_jiffies(50));
+ mod_timer(&m66592->timer, jiffies + msecs_to_jiffies(50));
}
return 0;
struct m66592 *m66592 = the_controller;
unsigned long flags;
+ if (driver != m66592->driver || !driver->unbind)
+ return -EINVAL;
+
spin_lock_irqsave(&m66592->lock, flags);
if (m66592->gadget.speed != USB_SPEED_UNKNOWN)
m66592_usb_disconnect(m66592);
m66592_bclr(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0);
driver->unbind(&m66592->gadget);
+ m66592->gadget.dev.driver = NULL;
init_controller(m66592);
disable_controller(m66592);
.get_frame = m66592_get_frame,
};
-#if defined(CONFIG_PM)
-static int m66592_suspend(struct platform_device *pdev, pm_message_t state)
-{
- pdev->dev.power.power_state = state;
- return 0;
-}
-
-static int m66592_resume(struct platform_device *pdev)
-{
- pdev->dev.power.power_state = PMSG_ON;
- return 0;
-}
-#else /* if defined(CONFIG_PM) */
-#define m66592_suspend NULL
-#define m66592_resume NULL
-#endif
-
-static int __init_or_module m66592_remove(struct platform_device *pdev)
+static int __exit m66592_remove(struct platform_device *pdev)
{
struct m66592 *m66592 = dev_get_drvdata(&pdev->dev);
del_timer_sync(&m66592->timer);
iounmap(m66592->reg);
free_irq(platform_get_irq(pdev, 0), m66592);
+ m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ clk_disable(m66592->clk);
+ clk_put(m66592->clk);
+#endif
kfree(m66592);
return 0;
}
-#define resource_len(r) (((r)->end - (r)->start) + 1)
+static void nop_completion(struct usb_ep *ep, struct usb_request *r)
+{
+}
+
static int __init m66592_probe(struct platform_device *pdev)
{
- struct resource *res = NULL;
- int irq = -1;
+ struct resource *res;
+ int irq;
void __iomem *reg = NULL;
struct m66592 *m66592 = NULL;
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ char clk_name[8];
+#endif
int ret = 0;
int i;
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- (char *)udc_name);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENODEV;
- printk(KERN_ERR "platform_get_resource_byname error.\n");
+ pr_err("platform_get_resource error.\n");
goto clean_up;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = -ENODEV;
- printk(KERN_ERR "platform_get_irq error.\n");
+ pr_err("platform_get_irq error.\n");
goto clean_up;
}
- reg = ioremap(res->start, resource_len(res));
+ reg = ioremap(res->start, resource_size(res));
if (reg == NULL) {
ret = -ENOMEM;
- printk(KERN_ERR "ioremap error.\n");
+ pr_err("ioremap error.\n");
goto clean_up;
}
/* initialize ucd */
m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL);
if (m66592 == NULL) {
- printk(KERN_ERR "kzalloc error\n");
+ pr_err("kzalloc error\n");
goto clean_up;
}
m66592->gadget.ops = &m66592_gadget_ops;
device_initialize(&m66592->gadget.dev);
- strcpy(m66592->gadget.dev.bus_id, "gadget");
+ dev_set_name(&m66592->gadget.dev, "gadget");
m66592->gadget.is_dualspeed = 1;
m66592->gadget.dev.parent = &pdev->dev;
m66592->gadget.dev.dma_mask = pdev->dev.dma_mask;
m66592->bi_bufnum = M66592_BASE_BUFNUM;
- ret = request_irq(irq, m66592_irq, SA_INTERRUPT | SA_SHIRQ,
- udc_name, m66592);
+ ret = request_irq(irq, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
+ udc_name, m66592);
if (ret < 0) {
- printk(KERN_ERR "request_irq error (%d)\n", ret);
+ pr_err("request_irq error (%d)\n", ret);
goto clean_up;
}
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
+ m66592->clk = clk_get(&pdev->dev, clk_name);
+ if (IS_ERR(m66592->clk)) {
+ dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
+ ret = PTR_ERR(m66592->clk);
+ goto clean_up2;
+ }
+ clk_enable(m66592->clk);
+#endif
INIT_LIST_HEAD(&m66592->gadget.ep_list);
m66592->gadget.ep0 = &m66592->ep[0].ep;
INIT_LIST_HEAD(&m66592->gadget.ep0->ep_list);
if (i != 0) {
INIT_LIST_HEAD(&m66592->ep[i].ep.ep_list);
list_add_tail(&m66592->ep[i].ep.ep_list,
- &m66592->gadget.ep_list);
+ &m66592->gadget.ep_list);
}
ep->m66592 = m66592;
INIT_LIST_HEAD(&ep->queue);
m66592->ep0_req = m66592_alloc_request(&m66592->ep[0].ep, GFP_KERNEL);
if (m66592->ep0_req == NULL)
- goto clean_up;
- m66592->ep0_buf = m66592_alloc_buffer(&m66592->ep[0].ep, 2, NULL,
- GFP_KERNEL);
- if (m66592->ep0_buf == NULL)
- goto clean_up;
+ goto clean_up3;
+ m66592->ep0_req->complete = nop_completion;
init_controller(m66592);
- printk("driver %s, %s\n", udc_name, DRIVER_VERSION);
+ dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
return 0;
+clean_up3:
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ clk_disable(m66592->clk);
+ clk_put(m66592->clk);
+clean_up2:
+#endif
+ free_irq(irq, m66592);
clean_up:
if (m66592) {
if (m66592->ep0_req)
/*-------------------------------------------------------------------------*/
static struct platform_driver m66592_driver = {
- .probe = m66592_probe,
- .remove = m66592_remove,
- .suspend = m66592_suspend,
- .resume = m66592_resume,
+ .remove = __exit_p(m66592_remove),
.driver = {
.name = (char *) udc_name,
+ .owner = THIS_MODULE,
},
};
static int __init m66592_udc_init(void)
{
- return platform_driver_register(&m66592_driver);
+ return platform_driver_probe(&m66592_driver, m66592_probe);
}
module_init(m66592_udc_init);
platform_driver_unregister(&m66592_driver);
}
module_exit(m66592_udc_cleanup);
-
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff