MODULE_DESCRIPTION("M66592 USB gadget driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yoshihiro Shimoda");
+MODULE_ALIAS("platform:m66592_udc");
-#define DRIVER_VERSION "29 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 "
module_param(irq_sense, ushort, 0644);
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[] = {
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;
}
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)
break;
}
if (m66592->bi_bufnum > M66592_MAX_BUFNUM) {
- printk(KERN_ERR "m66592 pipe memory is insufficient(%d)\n",
+ 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",
+ pr_err("ep_release: unexpect pipenum (%d)\n",
info->pipe);
}
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;
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
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;
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;
}
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)
+{
+ usbf_start_clock();
+ 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_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
M66592_DMA0CFG);
}
+#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
static void disable_controller(struct m66592 *m66592)
{
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+ usbf_stop_clock();
+#else
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)
+ usbf_start_clock();
+#else
u16 tmp;
tmp = m66592_read(m66592, M66592_SYSCFG);
if (!(tmp & M66592_XCKE))
m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
+#endif
}
/*-------------------------------------------------------------------------*/
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;
}
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;
}
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;
}
break;
default:
m66592->gadget.speed = USB_SPEED_UNKNOWN;
- printk(KERN_ERR "USB speed unknown\n");
+ pr_err("USB speed unknown\n");
}
}
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;
}
}
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;
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_bclr(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0);
driver->unbind(&m66592->gadget);
+ m66592->gadget.dev.driver = NULL;
init_controller(m66592);
disable_controller(m66592);
iounmap(m66592->reg);
free_irq(platform_get_irq(pdev, 0), m66592);
m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
+ usbf_stop_clock();
kfree(m66592);
return 0;
}
(char *)udc_name);
if (!res) {
ret = -ENODEV;
- printk(KERN_ERR "platform_get_resource_byname error.\n");
+ pr_err("platform_get_resource_byname 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));
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;
}
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;
}
.remove = __exit_p(m66592_remove),
.driver = {
.name = (char *) udc_name,
+ .owner = THIS_MODULE,
},
};