Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Yuan-Hsin Chen | 7162 | 95.88% | 3 | 10.71% |
Robert Baldyga | 81 | 1.08% | 2 | 7.14% |
Sebastian Andrzej Siewior | 79 | 1.06% | 3 | 10.71% |
Young_X | 49 | 0.66% | 1 | 3.57% |
Felipe Balbi | 43 | 0.58% | 4 | 14.29% |
Dan Carpenter | 16 | 0.21% | 1 | 3.57% |
Julia Lawall | 14 | 0.19% | 1 | 3.57% |
Wei Yongjun | 7 | 0.09% | 1 | 3.57% |
Ido Shayevitz | 4 | 0.05% | 1 | 3.57% |
Jingoo Han | 3 | 0.04% | 2 | 7.14% |
Paul Gortmaker | 3 | 0.04% | 1 | 3.57% |
Michal Nazarewicz | 2 | 0.03% | 1 | 3.57% |
Greg Kroah-Hartman | 2 | 0.03% | 2 | 7.14% |
Fabio Porcedda | 1 | 0.01% | 1 | 3.57% |
Dave Jones | 1 | 0.01% | 1 | 3.57% |
Kuninori Morimoto | 1 | 0.01% | 1 | 3.57% |
Bhumika Goyal | 1 | 0.01% | 1 | 3.57% |
Michal Sojka | 1 | 0.01% | 1 | 3.57% |
Total | 7470 | 28 |
// SPDX-License-Identifier: GPL-2.0 /* * Fusb300 UDC (USB gadget) * * Copyright (C) 2010 Faraday Technology Corp. * * Author : Yuan-hsin Chen <yhchen@faraday-tech.com> */ #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 = usb_endpoint_maxp_mult(desc); } 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 const 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); int i; 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); for (i = 0; i < FUSB300_MAX_NUM_EP; i++) kfree(fusb300->ep[i]); 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); if (i == 0) { ep->ep.caps.type_control = true; } else { ep->ep.caps.type_iso = true; ep->ep.caps.type_bulk = true; ep->ep.caps.type_int = true; } ep->ep.caps.dir_in = true; ep->ep.caps.dir_out = true; } 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); for (i = 0; i < FUSB300_MAX_NUM_EP; i++) kfree(fusb300->ep[i]); 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);
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1