linux/drivers/usb/gadget/fusb300_udc.c
Michal Nazarewicz 7177aed44f usb: gadget: rename usb_gadget_driver::speed to max_speed
This commit renames the “speed” field of the usb_gadget_driver
structure to “max_speed”.  This is so that to make it more
apparent that the field represents the maximum speed gadget
driver can support.

This also make the field look more like fields with the same
name in usb_gadget and usb_composite_driver structures.  All
of those represent the *maximal* speed given entity supports.

After this commit, there are the following fields in various
structures:
* usb_gadget::speed - the current connection speed,
* usb_gadget::max_speed - maximal speed UDC supports,
* usb_gadget_driver::max_speed - maximal speed gadget driver
  supports, and
* usb_composite_driver::max_speed - maximal speed composite
  gadget supports.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-12-12 11:45:12 +02:00

1561 lines
37 KiB
C

/*
* Fusb300 UDC (USB gadget)
*
* Copyright (C) 2010 Faraday Technology Corp.
*
* Author : Yuan-hsin Chen <yhchen@faraday-tech.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*/
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include "fusb300_udc.h"
MODULE_DESCRIPTION("FUSB300 USB gadget driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yuan Hsin Chen <yhchen@faraday-tech.com>");
MODULE_ALIAS("platform:fusb300_udc");
#define DRIVER_VERSION "20 October 2010"
static const char udc_name[] = "fusb300_udc";
static const char * const fusb300_ep_name[] = {
"ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7", "ep8", "ep9",
"ep10", "ep11", "ep12", "ep13", "ep14", "ep15"
};
static void done(struct fusb300_ep *ep, struct fusb300_request *req,
int status);
static void fusb300_enable_bit(struct fusb300 *fusb300, u32 offset,
u32 value)
{
u32 reg = ioread32(fusb300->reg + offset);
reg |= value;
iowrite32(reg, fusb300->reg + offset);
}
static void fusb300_disable_bit(struct fusb300 *fusb300, u32 offset,
u32 value)
{
u32 reg = ioread32(fusb300->reg + offset);
reg &= ~value;
iowrite32(reg, fusb300->reg + offset);
}
static void fusb300_ep_setting(struct fusb300_ep *ep,
struct fusb300_ep_info info)
{
ep->epnum = info.epnum;
ep->type = info.type;
}
static int fusb300_ep_release(struct fusb300_ep *ep)
{
if (!ep->epnum)
return 0;
ep->epnum = 0;
ep->stall = 0;
ep->wedged = 0;
return 0;
}
static void fusb300_set_fifo_entry(struct fusb300 *fusb300,
u32 ep)
{
u32 val = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
val &= ~FUSB300_EPSET1_FIFOENTRY_MSK;
val |= FUSB300_EPSET1_FIFOENTRY(FUSB300_FIFO_ENTRY_NUM);
iowrite32(val, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
}
static void fusb300_set_start_entry(struct fusb300 *fusb300,
u8 ep)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
u32 start_entry = fusb300->fifo_entry_num * FUSB300_FIFO_ENTRY_NUM;
reg &= ~FUSB300_EPSET1_START_ENTRY_MSK ;
reg |= FUSB300_EPSET1_START_ENTRY(start_entry);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
if (fusb300->fifo_entry_num == FUSB300_MAX_FIFO_ENTRY) {
fusb300->fifo_entry_num = 0;
fusb300->addrofs = 0;
pr_err("fifo entry is over the maximum number!\n");
} else
fusb300->fifo_entry_num++;
}
/* set fusb300_set_start_entry first before fusb300_set_epaddrofs */
static void fusb300_set_epaddrofs(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
reg &= ~FUSB300_EPSET2_ADDROFS_MSK;
reg |= FUSB300_EPSET2_ADDROFS(fusb300->addrofs);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
fusb300->addrofs += (info.maxpacket + 7) / 8 * FUSB300_FIFO_ENTRY_NUM;
}
static void ep_fifo_setting(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
fusb300_set_fifo_entry(fusb300, info.epnum);
fusb300_set_start_entry(fusb300, info.epnum);
fusb300_set_epaddrofs(fusb300, info);
}
static void fusb300_set_eptype(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
reg &= ~FUSB300_EPSET1_TYPE_MSK;
reg |= FUSB300_EPSET1_TYPE(info.type);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
}
static void fusb300_set_epdir(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
u32 reg;
if (!info.dir_in)
return;
reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
reg &= ~FUSB300_EPSET1_DIR_MSK;
reg |= FUSB300_EPSET1_DIRIN;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
}
static void fusb300_set_ep_active(struct fusb300 *fusb300,
u8 ep)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
reg |= FUSB300_EPSET1_ACTEN;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
}
static void fusb300_set_epmps(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
reg &= ~FUSB300_EPSET2_MPS_MSK;
reg |= FUSB300_EPSET2_MPS(info.maxpacket);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
}
static void fusb300_set_interval(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
reg &= ~FUSB300_EPSET1_INTERVAL(0x7);
reg |= FUSB300_EPSET1_INTERVAL(info.interval);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
}
static void fusb300_set_bwnum(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
reg &= ~FUSB300_EPSET1_BWNUM(0x3);
reg |= FUSB300_EPSET1_BWNUM(info.bw_num);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
}
static void set_ep_reg(struct fusb300 *fusb300,
struct fusb300_ep_info info)
{
fusb300_set_eptype(fusb300, info);
fusb300_set_epdir(fusb300, info);
fusb300_set_epmps(fusb300, info);
if (info.interval)
fusb300_set_interval(fusb300, info);
if (info.bw_num)
fusb300_set_bwnum(fusb300, info);
fusb300_set_ep_active(fusb300, info.epnum);
}
static int config_ep(struct fusb300_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
struct fusb300 *fusb300 = ep->fusb300;
struct fusb300_ep_info info;
ep->desc = desc;
info.interval = 0;
info.addrofs = 0;
info.bw_num = 0;
info.type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
info.dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0;
info.maxpacket = usb_endpoint_maxp(desc);
info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
if ((info.type == USB_ENDPOINT_XFER_INT) ||
(info.type == USB_ENDPOINT_XFER_ISOC)) {
info.interval = desc->bInterval;
if (info.type == USB_ENDPOINT_XFER_ISOC)
info.bw_num = ((desc->wMaxPacketSize & 0x1800) >> 11);
}
ep_fifo_setting(fusb300, info);
set_ep_reg(fusb300, info);
fusb300_ep_setting(ep, info);
fusb300->ep[info.epnum] = ep;
return 0;
}
static int fusb300_enable(struct usb_ep *_ep,
const struct usb_endpoint_descriptor *desc)
{
struct fusb300_ep *ep;
ep = container_of(_ep, struct fusb300_ep, ep);
if (ep->fusb300->reenum) {
ep->fusb300->fifo_entry_num = 0;
ep->fusb300->addrofs = 0;
ep->fusb300->reenum = 0;
}
return config_ep(ep, desc);
}
static int fusb300_disable(struct usb_ep *_ep)
{
struct fusb300_ep *ep;
struct fusb300_request *req;
unsigned long flags;
ep = container_of(_ep, struct fusb300_ep, ep);
BUG_ON(!ep);
while (!list_empty(&ep->queue)) {
req = list_entry(ep->queue.next, struct fusb300_request, queue);
spin_lock_irqsave(&ep->fusb300->lock, flags);
done(ep, req, -ECONNRESET);
spin_unlock_irqrestore(&ep->fusb300->lock, flags);
}
return fusb300_ep_release(ep);
}
static struct usb_request *fusb300_alloc_request(struct usb_ep *_ep,
gfp_t gfp_flags)
{
struct fusb300_request *req;
req = kzalloc(sizeof(struct fusb300_request), gfp_flags);
if (!req)
return NULL;
INIT_LIST_HEAD(&req->queue);
return &req->req;
}
static void fusb300_free_request(struct usb_ep *_ep, struct usb_request *_req)
{
struct fusb300_request *req;
req = container_of(_req, struct fusb300_request, req);
kfree(req);
}
static int enable_fifo_int(struct fusb300_ep *ep)
{
struct fusb300 *fusb300 = ep->fusb300;
if (ep->epnum) {
fusb300_enable_bit(fusb300, FUSB300_OFFSET_IGER0,
FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum));
} else {
pr_err("can't enable_fifo_int ep0\n");
return -EINVAL;
}
return 0;
}
static int disable_fifo_int(struct fusb300_ep *ep)
{
struct fusb300 *fusb300 = ep->fusb300;
if (ep->epnum) {
fusb300_disable_bit(fusb300, FUSB300_OFFSET_IGER0,
FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum));
} else {
pr_err("can't disable_fifo_int ep0\n");
return -EINVAL;
}
return 0;
}
static void fusb300_set_cxlen(struct fusb300 *fusb300, u32 length)
{
u32 reg;
reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
reg &= ~FUSB300_CSR_LEN_MSK;
reg |= FUSB300_CSR_LEN(length);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_CSR);
}
/* write data to cx fifo */
static void fusb300_wrcxf(struct fusb300_ep *ep,
struct fusb300_request *req)
{
int i = 0;
u8 *tmp;
u32 data;
struct fusb300 *fusb300 = ep->fusb300;
u32 length = req->req.length - req->req.actual;
tmp = req->req.buf + req->req.actual;
if (length > SS_CTL_MAX_PACKET_SIZE) {
fusb300_set_cxlen(fusb300, SS_CTL_MAX_PACKET_SIZE);
for (i = (SS_CTL_MAX_PACKET_SIZE >> 2); i > 0; i--) {
data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 |
*(tmp + 3) << 24;
iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
tmp += 4;
}
req->req.actual += SS_CTL_MAX_PACKET_SIZE;
} else { /* length is less than max packet size */
fusb300_set_cxlen(fusb300, length);
for (i = length >> 2; i > 0; i--) {
data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 |
*(tmp + 3) << 24;
printk(KERN_DEBUG " 0x%x\n", data);
iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
tmp = tmp + 4;
}
switch (length % 4) {
case 1:
data = *tmp;
printk(KERN_DEBUG " 0x%x\n", data);
iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
break;
case 2:
data = *tmp | *(tmp + 1) << 8;
printk(KERN_DEBUG " 0x%x\n", data);
iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
break;
case 3:
data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
printk(KERN_DEBUG " 0x%x\n", data);
iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
break;
default:
break;
}
req->req.actual += length;
}
}
static void fusb300_set_epnstall(struct fusb300 *fusb300, u8 ep)
{
fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep),
FUSB300_EPSET0_STL);
}
static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
if (reg & FUSB300_EPSET0_STL) {
printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep);
reg &= ~FUSB300_EPSET0_STL;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
}
}
static void ep0_queue(struct fusb300_ep *ep, struct fusb300_request *req)
{
if (ep->fusb300->ep0_dir) { /* if IN */
if (req->req.length) {
fusb300_wrcxf(ep, req);
} else
printk(KERN_DEBUG "%s : req->req.length = 0x%x\n",
__func__, req->req.length);
if ((req->req.length == req->req.actual) ||
(req->req.actual < ep->ep.maxpacket))
done(ep, req, 0);
} else { /* OUT */
if (!req->req.length)
done(ep, req, 0);
else
fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER1,
FUSB300_IGER1_CX_OUT_INT);
}
}
static int fusb300_queue(struct usb_ep *_ep, struct usb_request *_req,
gfp_t gfp_flags)
{
struct fusb300_ep *ep;
struct fusb300_request *req;
unsigned long flags;
int request = 0;
ep = container_of(_ep, struct fusb300_ep, ep);
req = container_of(_req, struct fusb300_request, req);
if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN)
return -ESHUTDOWN;
spin_lock_irqsave(&ep->fusb300->lock, flags);
if (list_empty(&ep->queue))
request = 1;
list_add_tail(&req->queue, &ep->queue);
req->req.actual = 0;
req->req.status = -EINPROGRESS;
if (ep->desc == NULL) /* ep0 */
ep0_queue(ep, req);
else if (request && !ep->stall)
enable_fifo_int(ep);
spin_unlock_irqrestore(&ep->fusb300->lock, flags);
return 0;
}
static int fusb300_dequeue(struct usb_ep *_ep, struct usb_request *_req)
{
struct fusb300_ep *ep;
struct fusb300_request *req;
unsigned long flags;
ep = container_of(_ep, struct fusb300_ep, ep);
req = container_of(_req, struct fusb300_request, req);
spin_lock_irqsave(&ep->fusb300->lock, flags);
if (!list_empty(&ep->queue))
done(ep, req, -ECONNRESET);
spin_unlock_irqrestore(&ep->fusb300->lock, flags);
return 0;
}
static int fusb300_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedge)
{
struct fusb300_ep *ep;
struct fusb300 *fusb300;
unsigned long flags;
int ret = 0;
ep = container_of(_ep, struct fusb300_ep, ep);
fusb300 = ep->fusb300;
spin_lock_irqsave(&ep->fusb300->lock, flags);
if (!list_empty(&ep->queue)) {
ret = -EAGAIN;
goto out;
}
if (value) {
fusb300_set_epnstall(fusb300, ep->epnum);
ep->stall = 1;
if (wedge)
ep->wedged = 1;
} else {
fusb300_clear_epnstall(fusb300, ep->epnum);
ep->stall = 0;
ep->wedged = 0;
}
out:
spin_unlock_irqrestore(&ep->fusb300->lock, flags);
return ret;
}
static int fusb300_set_halt(struct usb_ep *_ep, int value)
{
return fusb300_set_halt_and_wedge(_ep, value, 0);
}
static int fusb300_set_wedge(struct usb_ep *_ep)
{
return fusb300_set_halt_and_wedge(_ep, 1, 1);
}
static void fusb300_fifo_flush(struct usb_ep *_ep)
{
}
static struct usb_ep_ops fusb300_ep_ops = {
.enable = fusb300_enable,
.disable = fusb300_disable,
.alloc_request = fusb300_alloc_request,
.free_request = fusb300_free_request,
.queue = fusb300_queue,
.dequeue = fusb300_dequeue,
.set_halt = fusb300_set_halt,
.fifo_flush = fusb300_fifo_flush,
.set_wedge = fusb300_set_wedge,
};
/*****************************************************************************/
static void fusb300_clear_int(struct fusb300 *fusb300, u32 offset,
u32 value)
{
iowrite32(value, fusb300->reg + offset);
}
static void fusb300_reset(void)
{
}
static void fusb300_set_cxstall(struct fusb300 *fusb300)
{
fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR,
FUSB300_CSR_STL);
}
static void fusb300_set_cxdone(struct fusb300 *fusb300)
{
fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR,
FUSB300_CSR_DONE);
}
/* read data from cx fifo */
void fusb300_rdcxf(struct fusb300 *fusb300,
u8 *buffer, u32 length)
{
int i = 0;
u8 *tmp;
u32 data;
tmp = buffer;
for (i = (length >> 2); i > 0; i--) {
data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
printk(KERN_DEBUG " 0x%x\n", data);
*tmp = data & 0xFF;
*(tmp + 1) = (data >> 8) & 0xFF;
*(tmp + 2) = (data >> 16) & 0xFF;
*(tmp + 3) = (data >> 24) & 0xFF;
tmp = tmp + 4;
}
switch (length % 4) {
case 1:
data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
printk(KERN_DEBUG " 0x%x\n", data);
*tmp = data & 0xFF;
break;
case 2:
data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
printk(KERN_DEBUG " 0x%x\n", data);
*tmp = data & 0xFF;
*(tmp + 1) = (data >> 8) & 0xFF;
break;
case 3:
data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
printk(KERN_DEBUG " 0x%x\n", data);
*tmp = data & 0xFF;
*(tmp + 1) = (data >> 8) & 0xFF;
*(tmp + 2) = (data >> 16) & 0xFF;
break;
default:
break;
}
}
static void fusb300_rdfifo(struct fusb300_ep *ep,
struct fusb300_request *req,
u32 length)
{
int i = 0;
u8 *tmp;
u32 data, reg;
struct fusb300 *fusb300 = ep->fusb300;
tmp = req->req.buf + req->req.actual;
req->req.actual += length;
if (req->req.actual > req->req.length)
printk(KERN_DEBUG "req->req.actual > req->req.length\n");
for (i = (length >> 2); i > 0; i--) {
data = ioread32(fusb300->reg +
FUSB300_OFFSET_EPPORT(ep->epnum));
*tmp = data & 0xFF;
*(tmp + 1) = (data >> 8) & 0xFF;
*(tmp + 2) = (data >> 16) & 0xFF;
*(tmp + 3) = (data >> 24) & 0xFF;
tmp = tmp + 4;
}
switch (length % 4) {
case 1:
data = ioread32(fusb300->reg +
FUSB300_OFFSET_EPPORT(ep->epnum));
*tmp = data & 0xFF;
break;
case 2:
data = ioread32(fusb300->reg +
FUSB300_OFFSET_EPPORT(ep->epnum));
*tmp = data & 0xFF;
*(tmp + 1) = (data >> 8) & 0xFF;
break;
case 3:
data = ioread32(fusb300->reg +
FUSB300_OFFSET_EPPORT(ep->epnum));
*tmp = data & 0xFF;
*(tmp + 1) = (data >> 8) & 0xFF;
*(tmp + 2) = (data >> 16) & 0xFF;
break;
default:
break;
}
do {
reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
reg &= FUSB300_IGR1_SYNF0_EMPTY_INT;
if (i)
printk(KERN_INFO "sync fifo is not empty!\n");
i++;
} while (!reg);
}
static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep)
{
u8 value;
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
value = reg & FUSB300_EPSET0_STL;
return value;
}
static u8 fusb300_get_cxstall(struct fusb300 *fusb300)
{
u8 value;
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
value = (reg & FUSB300_CSR_STL) >> 1;
return value;
}
static void request_error(struct fusb300 *fusb300)
{
fusb300_set_cxstall(fusb300);
printk(KERN_DEBUG "request error!!\n");
}
static void get_status(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
__releases(fusb300->lock)
__acquires(fusb300->lock)
{
u8 ep;
u16 status = 0;
u16 w_index = ctrl->wIndex;
switch (ctrl->bRequestType & USB_RECIP_MASK) {
case USB_RECIP_DEVICE:
status = 1 << USB_DEVICE_SELF_POWERED;
break;
case USB_RECIP_INTERFACE:
status = 0;
break;
case USB_RECIP_ENDPOINT:
ep = w_index & USB_ENDPOINT_NUMBER_MASK;
if (ep) {
if (fusb300_get_epnstall(fusb300, ep))
status = 1 << USB_ENDPOINT_HALT;
} else {
if (fusb300_get_cxstall(fusb300))
status = 0;
}
break;
default:
request_error(fusb300);
return; /* exit */
}
fusb300->ep0_data = cpu_to_le16(status);
fusb300->ep0_req->buf = &fusb300->ep0_data;
fusb300->ep0_req->length = 2;
spin_unlock(&fusb300->lock);
fusb300_queue(fusb300->gadget.ep0, fusb300->ep0_req, GFP_KERNEL);
spin_lock(&fusb300->lock);
}
static void set_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
{
u8 ep;
switch (ctrl->bRequestType & USB_RECIP_MASK) {
case USB_RECIP_DEVICE:
fusb300_set_cxdone(fusb300);
break;
case USB_RECIP_INTERFACE:
fusb300_set_cxdone(fusb300);
break;
case USB_RECIP_ENDPOINT: {
u16 w_index = le16_to_cpu(ctrl->wIndex);
ep = w_index & USB_ENDPOINT_NUMBER_MASK;
if (ep)
fusb300_set_epnstall(fusb300, ep);
else
fusb300_set_cxstall(fusb300);
fusb300_set_cxdone(fusb300);
}
break;
default:
request_error(fusb300);
break;
}
}
static void fusb300_clear_seqnum(struct fusb300 *fusb300, u8 ep)
{
fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep),
FUSB300_EPSET0_CLRSEQNUM);
}
static void clear_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
{
struct fusb300_ep *ep =
fusb300->ep[ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK];
switch (ctrl->bRequestType & USB_RECIP_MASK) {
case USB_RECIP_DEVICE:
fusb300_set_cxdone(fusb300);
break;
case USB_RECIP_INTERFACE:
fusb300_set_cxdone(fusb300);
break;
case USB_RECIP_ENDPOINT:
if (ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK) {
if (ep->wedged) {
fusb300_set_cxdone(fusb300);
break;
}
if (ep->stall) {
ep->stall = 0;
fusb300_clear_seqnum(fusb300, ep->epnum);
fusb300_clear_epnstall(fusb300, ep->epnum);
if (!list_empty(&ep->queue))
enable_fifo_int(ep);
}
}
fusb300_set_cxdone(fusb300);
break;
default:
request_error(fusb300);
break;
}
}
static void fusb300_set_dev_addr(struct fusb300 *fusb300, u16 addr)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_DAR);
reg &= ~FUSB300_DAR_DRVADDR_MSK;
reg |= FUSB300_DAR_DRVADDR(addr);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_DAR);
}
static void set_address(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
{
if (ctrl->wValue >= 0x0100)
request_error(fusb300);
else {
fusb300_set_dev_addr(fusb300, ctrl->wValue);
fusb300_set_cxdone(fusb300);
}
}
#define UVC_COPY_DESCRIPTORS(mem, src) \
do { \
const struct usb_descriptor_header * const *__src; \
for (__src = src; *__src; ++__src) { \
memcpy(mem, *__src, (*__src)->bLength); \
mem += (*__src)->bLength; \
} \
} while (0)
static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
{
u8 *p = (u8 *)ctrl;
u8 ret = 0;
u8 i = 0;
fusb300_rdcxf(fusb300, p, 8);
fusb300->ep0_dir = ctrl->bRequestType & USB_DIR_IN;
fusb300->ep0_length = ctrl->wLength;
/* check request */
if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
switch (ctrl->bRequest) {
case USB_REQ_GET_STATUS:
get_status(fusb300, ctrl);
break;
case USB_REQ_CLEAR_FEATURE:
clear_feature(fusb300, ctrl);
break;
case USB_REQ_SET_FEATURE:
set_feature(fusb300, ctrl);
break;
case USB_REQ_SET_ADDRESS:
set_address(fusb300, ctrl);
break;
case USB_REQ_SET_CONFIGURATION:
fusb300_enable_bit(fusb300, FUSB300_OFFSET_DAR,
FUSB300_DAR_SETCONFG);
/* clear sequence number */
for (i = 1; i <= FUSB300_MAX_NUM_EP; i++)
fusb300_clear_seqnum(fusb300, i);
fusb300->reenum = 1;
ret = 1;
break;
default:
ret = 1;
break;
}
} else
ret = 1;
return ret;
}
static void done(struct fusb300_ep *ep, struct fusb300_request *req,
int status)
{
list_del_init(&req->queue);
/* don't modify queue heads during completion callback */
if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN)
req->req.status = -ESHUTDOWN;
else
req->req.status = status;
spin_unlock(&ep->fusb300->lock);
req->req.complete(&ep->ep, &req->req);
spin_lock(&ep->fusb300->lock);
if (ep->epnum) {
disable_fifo_int(ep);
if (!list_empty(&ep->queue))
enable_fifo_int(ep);
} else
fusb300_set_cxdone(ep->fusb300);
}
static void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, dma_addr_t d,
u32 len)
{
u32 value;
u32 reg;
/* wait SW owner */
do {
reg = ioread32(ep->fusb300->reg +
FUSB300_OFFSET_EPPRD_W0(ep->epnum));
reg &= FUSB300_EPPRD0_H;
} while (reg);
iowrite32(d, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W1(ep->epnum));
value = FUSB300_EPPRD0_BTC(len) | FUSB300_EPPRD0_H |
FUSB300_EPPRD0_F | FUSB300_EPPRD0_L | FUSB300_EPPRD0_I;
iowrite32(value, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W0(ep->epnum));
iowrite32(0x0, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W2(ep->epnum));
fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_EPPRDRDY,
FUSB300_EPPRDR_EP_PRD_RDY(ep->epnum));
}
static void fusb300_wait_idma_finished(struct fusb300_ep *ep)
{
u32 reg;
do {
reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR1);
if ((reg & FUSB300_IGR1_VBUS_CHG_INT) ||
(reg & FUSB300_IGR1_WARM_RST_INT) ||
(reg & FUSB300_IGR1_HOT_RST_INT) ||
(reg & FUSB300_IGR1_USBRST_INT)
)
goto IDMA_RESET;
reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR0);
reg &= FUSB300_IGR0_EPn_PRD_INT(ep->epnum);
} while (!reg);
fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0,
FUSB300_IGR0_EPn_PRD_INT(ep->epnum));
IDMA_RESET:
fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGER0,
FUSB300_IGER0_EEPn_PRD_INT(ep->epnum));
}
static void fusb300_set_idma(struct fusb300_ep *ep,
struct fusb300_request *req)
{
dma_addr_t d;
d = dma_map_single(NULL, req->req.buf, req->req.length, DMA_TO_DEVICE);
if (dma_mapping_error(NULL, d)) {
printk(KERN_DEBUG "dma_mapping_error\n");
return;
}
dma_sync_single_for_device(NULL, d, req->req.length, DMA_TO_DEVICE);
fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0,
FUSB300_IGER0_EEPn_PRD_INT(ep->epnum));
fusb300_fill_idma_prdtbl(ep, d, req->req.length);
/* check idma is done */
fusb300_wait_idma_finished(ep);
dma_unmap_single(NULL, d, req->req.length, DMA_TO_DEVICE);
}
static void in_ep_fifo_handler(struct fusb300_ep *ep)
{
struct fusb300_request *req = list_entry(ep->queue.next,
struct fusb300_request, queue);
if (req->req.length)
fusb300_set_idma(ep, req);
done(ep, req, 0);
}
static void out_ep_fifo_handler(struct fusb300_ep *ep)
{
struct fusb300 *fusb300 = ep->fusb300;
struct fusb300_request *req = list_entry(ep->queue.next,
struct fusb300_request, queue);
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum));
u32 length = reg & FUSB300_FFR_BYCNT;
fusb300_rdfifo(ep, req, length);
/* finish out transfer */
if ((req->req.length == req->req.actual) || (length < ep->ep.maxpacket))
done(ep, req, 0);
}
static void check_device_mode(struct fusb300 *fusb300)
{
u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_GCR);
switch (reg & FUSB300_GCR_DEVEN_MSK) {
case FUSB300_GCR_DEVEN_SS:
fusb300->gadget.speed = USB_SPEED_SUPER;
break;
case FUSB300_GCR_DEVEN_HS:
fusb300->gadget.speed = USB_SPEED_HIGH;
break;
case FUSB300_GCR_DEVEN_FS:
fusb300->gadget.speed = USB_SPEED_FULL;
break;
default:
fusb300->gadget.speed = USB_SPEED_UNKNOWN;
break;
}
printk(KERN_INFO "dev_mode = %d\n", (reg & FUSB300_GCR_DEVEN_MSK));
}
static void fusb300_ep0out(struct fusb300 *fusb300)
{
struct fusb300_ep *ep = fusb300->ep[0];
u32 reg;
if (!list_empty(&ep->queue)) {
struct fusb300_request *req;
req = list_first_entry(&ep->queue,
struct fusb300_request, queue);
if (req->req.length)
fusb300_rdcxf(ep->fusb300, req->req.buf,
req->req.length);
done(ep, req, 0);
reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1);
reg &= ~FUSB300_IGER1_CX_OUT_INT;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_IGER1);
} else
pr_err("%s : empty queue\n", __func__);
}
static void fusb300_ep0in(struct fusb300 *fusb300)
{
struct fusb300_request *req;
struct fusb300_ep *ep = fusb300->ep[0];
if ((!list_empty(&ep->queue)) && (fusb300->ep0_dir)) {
req = list_entry(ep->queue.next,
struct fusb300_request, queue);
if (req->req.length)
fusb300_wrcxf(ep, req);
if ((req->req.length - req->req.actual) < ep->ep.maxpacket)
done(ep, req, 0);
} else
fusb300_set_cxdone(fusb300);
}
static void fusb300_grp2_handler(void)
{
}
static void fusb300_grp3_handler(void)
{
}
static void fusb300_grp4_handler(void)
{
}
static void fusb300_grp5_handler(void)
{
}
static irqreturn_t fusb300_irq(int irq, void *_fusb300)
{
struct fusb300 *fusb300 = _fusb300;
u32 int_grp1 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
u32 int_grp1_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1);
u32 int_grp0 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR0);
u32 int_grp0_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER0);
struct usb_ctrlrequest ctrl;
u8 in;
u32 reg;
int i;
spin_lock(&fusb300->lock);
int_grp1 &= int_grp1_en;
int_grp0 &= int_grp0_en;
if (int_grp1 & FUSB300_IGR1_WARM_RST_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_WARM_RST_INT);
printk(KERN_INFO"fusb300_warmreset\n");
fusb300_reset();
}
if (int_grp1 & FUSB300_IGR1_HOT_RST_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_HOT_RST_INT);
printk(KERN_INFO"fusb300_hotreset\n");
fusb300_reset();
}
if (int_grp1 & FUSB300_IGR1_USBRST_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_USBRST_INT);
fusb300_reset();
}
/* COMABT_INT has a highest priority */
if (int_grp1 & FUSB300_IGR1_CX_COMABT_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_CX_COMABT_INT);
printk(KERN_INFO"fusb300_ep0abt\n");
}
if (int_grp1 & FUSB300_IGR1_VBUS_CHG_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_VBUS_CHG_INT);
printk(KERN_INFO"fusb300_vbus_change\n");
}
if (int_grp1 & FUSB300_IGR1_U3_EXIT_FAIL_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U3_EXIT_FAIL_INT);
}
if (int_grp1 & FUSB300_IGR1_U2_EXIT_FAIL_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U2_EXIT_FAIL_INT);
}
if (int_grp1 & FUSB300_IGR1_U1_EXIT_FAIL_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U1_EXIT_FAIL_INT);
}
if (int_grp1 & FUSB300_IGR1_U2_ENTRY_FAIL_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U2_ENTRY_FAIL_INT);
}
if (int_grp1 & FUSB300_IGR1_U1_ENTRY_FAIL_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U1_ENTRY_FAIL_INT);
}
if (int_grp1 & FUSB300_IGR1_U3_EXIT_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U3_EXIT_INT);
printk(KERN_INFO "FUSB300_IGR1_U3_EXIT_INT\n");
}
if (int_grp1 & FUSB300_IGR1_U2_EXIT_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U2_EXIT_INT);
printk(KERN_INFO "FUSB300_IGR1_U2_EXIT_INT\n");
}
if (int_grp1 & FUSB300_IGR1_U1_EXIT_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U1_EXIT_INT);
printk(KERN_INFO "FUSB300_IGR1_U1_EXIT_INT\n");
}
if (int_grp1 & FUSB300_IGR1_U3_ENTRY_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U3_ENTRY_INT);
printk(KERN_INFO "FUSB300_IGR1_U3_ENTRY_INT\n");
fusb300_enable_bit(fusb300, FUSB300_OFFSET_SSCR1,
FUSB300_SSCR1_GO_U3_DONE);
}
if (int_grp1 & FUSB300_IGR1_U2_ENTRY_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U2_ENTRY_INT);
printk(KERN_INFO "FUSB300_IGR1_U2_ENTRY_INT\n");
}
if (int_grp1 & FUSB300_IGR1_U1_ENTRY_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_U1_ENTRY_INT);
printk(KERN_INFO "FUSB300_IGR1_U1_ENTRY_INT\n");
}
if (int_grp1 & FUSB300_IGR1_RESM_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_RESM_INT);
printk(KERN_INFO "fusb300_resume\n");
}
if (int_grp1 & FUSB300_IGR1_SUSP_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_SUSP_INT);
printk(KERN_INFO "fusb300_suspend\n");
}
if (int_grp1 & FUSB300_IGR1_HS_LPM_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_HS_LPM_INT);
printk(KERN_INFO "fusb300_HS_LPM_INT\n");
}
if (int_grp1 & FUSB300_IGR1_DEV_MODE_CHG_INT) {
fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
FUSB300_IGR1_DEV_MODE_CHG_INT);
check_device_mode(fusb300);
}
if (int_grp1 & FUSB300_IGR1_CX_COMFAIL_INT) {
fusb300_set_cxstall(fusb300);
printk(KERN_INFO "fusb300_ep0fail\n");
}
if (int_grp1 & FUSB300_IGR1_CX_SETUP_INT) {
printk(KERN_INFO "fusb300_ep0setup\n");
if (setup_packet(fusb300, &ctrl)) {
spin_unlock(&fusb300->lock);
if (fusb300->driver->setup(&fusb300->gadget, &ctrl) < 0)
fusb300_set_cxstall(fusb300);
spin_lock(&fusb300->lock);
}
}
if (int_grp1 & FUSB300_IGR1_CX_CMDEND_INT)
printk(KERN_INFO "fusb300_cmdend\n");
if (int_grp1 & FUSB300_IGR1_CX_OUT_INT) {
printk(KERN_INFO "fusb300_cxout\n");
fusb300_ep0out(fusb300);
}
if (int_grp1 & FUSB300_IGR1_CX_IN_INT) {
printk(KERN_INFO "fusb300_cxin\n");
fusb300_ep0in(fusb300);
}
if (int_grp1 & FUSB300_IGR1_INTGRP5)
fusb300_grp5_handler();
if (int_grp1 & FUSB300_IGR1_INTGRP4)
fusb300_grp4_handler();
if (int_grp1 & FUSB300_IGR1_INTGRP3)
fusb300_grp3_handler();
if (int_grp1 & FUSB300_IGR1_INTGRP2)
fusb300_grp2_handler();
if (int_grp0) {
for (i = 1; i < FUSB300_MAX_NUM_EP; i++) {
if (int_grp0 & FUSB300_IGR0_EPn_FIFO_INT(i)) {
reg = ioread32(fusb300->reg +
FUSB300_OFFSET_EPSET1(i));
in = (reg & FUSB300_EPSET1_DIRIN) ? 1 : 0;
if (in)
in_ep_fifo_handler(fusb300->ep[i]);
else
out_ep_fifo_handler(fusb300->ep[i]);
}
}
}
spin_unlock(&fusb300->lock);
return IRQ_HANDLED;
}
static void fusb300_set_u2_timeout(struct fusb300 *fusb300,
u32 time)
{
u32 reg;
reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT);
reg &= ~0xff;
reg |= FUSB300_SSCR2_U2TIMEOUT(time);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT);
}
static void fusb300_set_u1_timeout(struct fusb300 *fusb300,
u32 time)
{
u32 reg;
reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT);
reg &= ~(0xff << 8);
reg |= FUSB300_SSCR2_U1TIMEOUT(time);
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT);
}
static void init_controller(struct fusb300 *fusb300)
{
u32 reg;
u32 mask = 0;
u32 val = 0;
/* split on */
mask = val = FUSB300_AHBBCR_S0_SPLIT_ON | FUSB300_AHBBCR_S1_SPLIT_ON;
reg = ioread32(fusb300->reg + FUSB300_OFFSET_AHBCR);
reg &= ~mask;
reg |= val;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_AHBCR);
/* enable high-speed LPM */
mask = val = FUSB300_HSCR_HS_LPM_PERMIT;
reg = ioread32(fusb300->reg + FUSB300_OFFSET_HSCR);
reg &= ~mask;
reg |= val;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_HSCR);
/*set u1 u2 timmer*/
fusb300_set_u2_timeout(fusb300, 0xff);
fusb300_set_u1_timeout(fusb300, 0xff);
/* enable all grp1 interrupt */
iowrite32(0xcfffff9f, fusb300->reg + FUSB300_OFFSET_IGER1);
}
/*------------------------------------------------------------------------*/
static struct fusb300 *the_controller;
static int fusb300_udc_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *))
{
struct fusb300 *fusb300 = the_controller;
int retval;
if (!driver
|| driver->max_speed < USB_SPEED_FULL
|| !bind
|| !driver->setup)
return -EINVAL;
if (!fusb300)
return -ENODEV;
if (fusb300->driver)
return -EBUSY;
/* hook up the driver */
driver->driver.bus = NULL;
fusb300->driver = driver;
fusb300->gadget.dev.driver = &driver->driver;
retval = device_add(&fusb300->gadget.dev);
if (retval) {
pr_err("device_add error (%d)\n", retval);
goto error;
}
retval = bind(&fusb300->gadget);
if (retval) {
pr_err("bind to driver error (%d)\n", retval);
device_del(&fusb300->gadget.dev);
goto error;
}
return 0;
error:
fusb300->driver = NULL;
fusb300->gadget.dev.driver = NULL;
return retval;
}
static int fusb300_udc_stop(struct usb_gadget_driver *driver)
{
struct fusb300 *fusb300 = the_controller;
if (driver != fusb300->driver || !driver->unbind)
return -EINVAL;
driver->unbind(&fusb300->gadget);
fusb300->gadget.dev.driver = NULL;
init_controller(fusb300);
device_del(&fusb300->gadget.dev);
fusb300->driver = NULL;
return 0;
}
/*--------------------------------------------------------------------------*/
static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active)
{
return 0;
}
static struct usb_gadget_ops fusb300_gadget_ops = {
.pullup = fusb300_udc_pullup,
.start = fusb300_udc_start,
.stop = fusb300_udc_stop,
};
static int __exit fusb300_remove(struct platform_device *pdev)
{
struct fusb300 *fusb300 = dev_get_drvdata(&pdev->dev);
usb_del_gadget_udc(&fusb300->gadget);
iounmap(fusb300->reg);
free_irq(platform_get_irq(pdev, 0), fusb300);
fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
kfree(fusb300);
return 0;
}
static int __init fusb300_probe(struct platform_device *pdev)
{
struct resource *res, *ires, *ires1;
void __iomem *reg = NULL;
struct fusb300 *fusb300 = NULL;
struct fusb300_ep *_ep[FUSB300_MAX_NUM_EP];
int ret = 0;
int i;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENODEV;
pr_err("platform_get_resource error.\n");
goto clean_up;
}
ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!ires) {
ret = -ENODEV;
dev_err(&pdev->dev,
"platform_get_resource IORESOURCE_IRQ error.\n");
goto clean_up;
}
ires1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
if (!ires1) {
ret = -ENODEV;
dev_err(&pdev->dev,
"platform_get_resource IORESOURCE_IRQ 1 error.\n");
goto clean_up;
}
reg = ioremap(res->start, resource_size(res));
if (reg == NULL) {
ret = -ENOMEM;
pr_err("ioremap error.\n");
goto clean_up;
}
/* initialize udc */
fusb300 = kzalloc(sizeof(struct fusb300), GFP_KERNEL);
if (fusb300 == NULL) {
pr_err("kzalloc error\n");
goto clean_up;
}
for (i = 0; i < FUSB300_MAX_NUM_EP; i++) {
_ep[i] = kzalloc(sizeof(struct fusb300_ep), GFP_KERNEL);
if (_ep[i] == NULL) {
pr_err("_ep kzalloc error\n");
goto clean_up;
}
fusb300->ep[i] = _ep[i];
}
spin_lock_init(&fusb300->lock);
dev_set_drvdata(&pdev->dev, fusb300);
fusb300->gadget.ops = &fusb300_gadget_ops;
device_initialize(&fusb300->gadget.dev);
dev_set_name(&fusb300->gadget.dev, "gadget");
fusb300->gadget.max_speed = USB_SPEED_HIGH;
fusb300->gadget.dev.parent = &pdev->dev;
fusb300->gadget.dev.dma_mask = pdev->dev.dma_mask;
fusb300->gadget.dev.release = pdev->dev.release;
fusb300->gadget.name = udc_name;
fusb300->reg = reg;
ret = request_irq(ires->start, fusb300_irq, IRQF_SHARED,
udc_name, fusb300);
if (ret < 0) {
pr_err("request_irq error (%d)\n", ret);
goto clean_up;
}
ret = request_irq(ires1->start, fusb300_irq,
IRQF_SHARED, udc_name, fusb300);
if (ret < 0) {
pr_err("request_irq1 error (%d)\n", ret);
goto clean_up;
}
INIT_LIST_HEAD(&fusb300->gadget.ep_list);
for (i = 0; i < FUSB300_MAX_NUM_EP ; i++) {
struct fusb300_ep *ep = fusb300->ep[i];
if (i != 0) {
INIT_LIST_HEAD(&fusb300->ep[i]->ep.ep_list);
list_add_tail(&fusb300->ep[i]->ep.ep_list,
&fusb300->gadget.ep_list);
}
ep->fusb300 = fusb300;
INIT_LIST_HEAD(&ep->queue);
ep->ep.name = fusb300_ep_name[i];
ep->ep.ops = &fusb300_ep_ops;
ep->ep.maxpacket = HS_BULK_MAX_PACKET_SIZE;
}
fusb300->ep[0]->ep.maxpacket = HS_CTL_MAX_PACKET_SIZE;
fusb300->ep[0]->epnum = 0;
fusb300->gadget.ep0 = &fusb300->ep[0]->ep;
INIT_LIST_HEAD(&fusb300->gadget.ep0->ep_list);
the_controller = fusb300;
fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep,
GFP_KERNEL);
if (fusb300->ep0_req == NULL)
goto clean_up3;
init_controller(fusb300);
ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget);
if (ret)
goto err_add_udc;
dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
return 0;
err_add_udc:
fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
clean_up3:
free_irq(ires->start, fusb300);
clean_up:
if (fusb300) {
if (fusb300->ep0_req)
fusb300_free_request(&fusb300->ep[0]->ep,
fusb300->ep0_req);
kfree(fusb300);
}
if (reg)
iounmap(reg);
return ret;
}
static struct platform_driver fusb300_driver = {
.remove = __exit_p(fusb300_remove),
.driver = {
.name = (char *) udc_name,
.owner = THIS_MODULE,
},
};
static int __init fusb300_udc_init(void)
{
return platform_driver_probe(&fusb300_driver, fusb300_probe);
}
module_init(fusb300_udc_init);
static void __exit fusb300_udc_cleanup(void)
{
platform_driver_unregister(&fusb300_driver);
}
module_exit(fusb300_udc_cleanup);