diff options
Diffstat (limited to 'kernel/drivers/usb/gadget/udc/fusb300_udc.c')
| -rw-r--r-- | kernel/drivers/usb/gadget/udc/fusb300_udc.c | 1501 |
1 files changed, 1501 insertions, 0 deletions
diff --git a/kernel/drivers/usb/gadget/udc/fusb300_udc.c b/kernel/drivers/usb/gadget/udc/fusb300_udc.c new file mode 100644 index 000000000..3970f453d --- /dev/null +++ b/kernel/drivers/usb/gadget/udc/fusb300_udc.c @@ -0,0 +1,1501 @@ +/* + * 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, Feng-Hsin Chiang <john453@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->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_CLR; + 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->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 */ +static 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); + usb_gadget_giveback_request(&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)); + return; + +IDMA_RESET: + reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGER0); + reg &= ~FUSB300_IGER0_EEPn_PRD_INT(ep->epnum); + iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_IGER0); +} + +static void fusb300_set_idma(struct fusb300_ep *ep, + struct fusb300_request *req) +{ + int ret; + + ret = usb_gadget_map_request(&ep->fusb300->gadget, + &req->req, DMA_TO_DEVICE); + if (ret) + return; + + fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0, + FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); + + fusb300_fill_idma_prdtbl(ep, req->req.dma, req->req.length); + /* check idma is done */ + fusb300_wait_idma_finished(ep); + + usb_gadget_unmap_request(&ep->fusb300->gadget, + &req->req, 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 int fusb300_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver) +{ + struct fusb300 *fusb300 = to_fusb300(g); + + /* hook up the driver */ + driver->driver.bus = NULL; + fusb300->driver = driver; + + return 0; +} + +static int fusb300_udc_stop(struct usb_gadget *g) +{ + struct fusb300 *fusb300 = to_fusb300(g); + + init_controller(fusb300); + fusb300->driver = NULL; + + return 0; +} +/*--------------------------------------------------------------------------*/ + +static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active) +{ + return 0; +} + +static const struct usb_gadget_ops fusb300_gadget_ops = { + .pullup = fusb300_udc_pullup, + .udc_start = fusb300_udc_start, + .udc_stop = fusb300_udc_stop, +}; + +static int fusb300_remove(struct platform_device *pdev) +{ + struct fusb300 *fusb300 = platform_get_drvdata(pdev); + + 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 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) { + ret = -ENOMEM; + 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) { + ret = -ENOMEM; + goto clean_up; + } + fusb300->ep[i] = _ep[i]; + } + + spin_lock_init(&fusb300->lock); + + platform_set_drvdata(pdev, fusb300); + + fusb300->gadget.ops = &fusb300_gadget_ops; + + fusb300->gadget.max_speed = USB_SPEED_HIGH; + 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; + usb_ep_set_maxpacket_limit(&ep->ep, HS_BULK_MAX_PACKET_SIZE); + } + usb_ep_set_maxpacket_limit(&fusb300->ep[0]->ep, 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); + + fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep, + GFP_KERNEL); + if (fusb300->ep0_req == NULL) { + ret = -ENOMEM; + 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 = fusb300_remove, + .driver = { + .name = (char *) udc_name, + }, +}; + +module_platform_driver_probe(fusb300_driver, fusb300_probe); |