Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Fusb300 UDC (USB gadget) |
| 3 | * |
| 4 | * Copyright (C) 2010 Faraday Technology Corp. |
| 5 | * |
| 6 | * Author : Yuan-hsin Chen <yhchen@faraday-tech.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; version 2 of the License. |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 11 | */ |
| 12 | #include <linux/dma-mapping.h> |
| 13 | #include <linux/err.h> |
| 14 | #include <linux/interrupt.h> |
| 15 | #include <linux/io.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | #include <linux/usb/ch9.h> |
| 18 | #include <linux/usb/gadget.h> |
| 19 | |
| 20 | #include "fusb300_udc.h" |
| 21 | |
| 22 | MODULE_DESCRIPTION("FUSB300 USB gadget driver"); |
| 23 | MODULE_LICENSE("GPL"); |
| 24 | MODULE_AUTHOR("Yuan Hsin Chen <yhchen@faraday-tech.com>"); |
| 25 | MODULE_ALIAS("platform:fusb300_udc"); |
| 26 | |
| 27 | #define DRIVER_VERSION "20 October 2010" |
| 28 | |
| 29 | static const char udc_name[] = "fusb300_udc"; |
| 30 | static const char * const fusb300_ep_name[] = { |
Dan Carpenter | 6b2e30c | 2011-02-07 20:01:36 +0300 | [diff] [blame] | 31 | "ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7", "ep8", "ep9", |
| 32 | "ep10", "ep11", "ep12", "ep13", "ep14", "ep15" |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 33 | }; |
| 34 | |
| 35 | static void done(struct fusb300_ep *ep, struct fusb300_request *req, |
| 36 | int status); |
| 37 | |
| 38 | static void fusb300_enable_bit(struct fusb300 *fusb300, u32 offset, |
| 39 | u32 value) |
| 40 | { |
| 41 | u32 reg = ioread32(fusb300->reg + offset); |
| 42 | |
| 43 | reg |= value; |
| 44 | iowrite32(reg, fusb300->reg + offset); |
| 45 | } |
| 46 | |
| 47 | static void fusb300_disable_bit(struct fusb300 *fusb300, u32 offset, |
| 48 | u32 value) |
| 49 | { |
| 50 | u32 reg = ioread32(fusb300->reg + offset); |
| 51 | |
| 52 | reg &= ~value; |
| 53 | iowrite32(reg, fusb300->reg + offset); |
| 54 | } |
| 55 | |
| 56 | |
| 57 | static void fusb300_ep_setting(struct fusb300_ep *ep, |
| 58 | struct fusb300_ep_info info) |
| 59 | { |
| 60 | ep->epnum = info.epnum; |
| 61 | ep->type = info.type; |
| 62 | } |
| 63 | |
| 64 | static int fusb300_ep_release(struct fusb300_ep *ep) |
| 65 | { |
| 66 | if (!ep->epnum) |
| 67 | return 0; |
| 68 | ep->epnum = 0; |
| 69 | ep->stall = 0; |
| 70 | ep->wedged = 0; |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | static void fusb300_set_fifo_entry(struct fusb300 *fusb300, |
| 75 | u32 ep) |
| 76 | { |
| 77 | u32 val = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep)); |
| 78 | |
| 79 | val &= ~FUSB300_EPSET1_FIFOENTRY_MSK; |
| 80 | val |= FUSB300_EPSET1_FIFOENTRY(FUSB300_FIFO_ENTRY_NUM); |
| 81 | iowrite32(val, fusb300->reg + FUSB300_OFFSET_EPSET1(ep)); |
| 82 | } |
| 83 | |
| 84 | static void fusb300_set_start_entry(struct fusb300 *fusb300, |
| 85 | u8 ep) |
| 86 | { |
| 87 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep)); |
| 88 | u32 start_entry = fusb300->fifo_entry_num * FUSB300_FIFO_ENTRY_NUM; |
| 89 | |
| 90 | reg &= ~FUSB300_EPSET1_START_ENTRY_MSK ; |
| 91 | reg |= FUSB300_EPSET1_START_ENTRY(start_entry); |
| 92 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep)); |
| 93 | if (fusb300->fifo_entry_num == FUSB300_MAX_FIFO_ENTRY) { |
| 94 | fusb300->fifo_entry_num = 0; |
| 95 | fusb300->addrofs = 0; |
| 96 | pr_err("fifo entry is over the maximum number!\n"); |
| 97 | } else |
| 98 | fusb300->fifo_entry_num++; |
| 99 | } |
| 100 | |
| 101 | /* set fusb300_set_start_entry first before fusb300_set_epaddrofs */ |
| 102 | static void fusb300_set_epaddrofs(struct fusb300 *fusb300, |
| 103 | struct fusb300_ep_info info) |
| 104 | { |
| 105 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum)); |
| 106 | |
| 107 | reg &= ~FUSB300_EPSET2_ADDROFS_MSK; |
| 108 | reg |= FUSB300_EPSET2_ADDROFS(fusb300->addrofs); |
| 109 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum)); |
| 110 | fusb300->addrofs += (info.maxpacket + 7) / 8 * FUSB300_FIFO_ENTRY_NUM; |
| 111 | } |
| 112 | |
| 113 | static void ep_fifo_setting(struct fusb300 *fusb300, |
| 114 | struct fusb300_ep_info info) |
| 115 | { |
| 116 | fusb300_set_fifo_entry(fusb300, info.epnum); |
| 117 | fusb300_set_start_entry(fusb300, info.epnum); |
| 118 | fusb300_set_epaddrofs(fusb300, info); |
| 119 | } |
| 120 | |
| 121 | static void fusb300_set_eptype(struct fusb300 *fusb300, |
| 122 | struct fusb300_ep_info info) |
| 123 | { |
| 124 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 125 | |
| 126 | reg &= ~FUSB300_EPSET1_TYPE_MSK; |
| 127 | reg |= FUSB300_EPSET1_TYPE(info.type); |
| 128 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 129 | } |
| 130 | |
| 131 | static void fusb300_set_epdir(struct fusb300 *fusb300, |
| 132 | struct fusb300_ep_info info) |
| 133 | { |
| 134 | u32 reg; |
| 135 | |
| 136 | if (!info.dir_in) |
| 137 | return; |
| 138 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 139 | reg &= ~FUSB300_EPSET1_DIR_MSK; |
| 140 | reg |= FUSB300_EPSET1_DIRIN; |
| 141 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 142 | } |
| 143 | |
| 144 | static void fusb300_set_ep_active(struct fusb300 *fusb300, |
| 145 | u8 ep) |
| 146 | { |
| 147 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep)); |
| 148 | |
| 149 | reg |= FUSB300_EPSET1_ACTEN; |
| 150 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep)); |
| 151 | } |
| 152 | |
| 153 | static void fusb300_set_epmps(struct fusb300 *fusb300, |
| 154 | struct fusb300_ep_info info) |
| 155 | { |
| 156 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum)); |
| 157 | |
| 158 | reg &= ~FUSB300_EPSET2_MPS_MSK; |
| 159 | reg |= FUSB300_EPSET2_MPS(info.maxpacket); |
| 160 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum)); |
| 161 | } |
| 162 | |
| 163 | static void fusb300_set_interval(struct fusb300 *fusb300, |
| 164 | struct fusb300_ep_info info) |
| 165 | { |
| 166 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 167 | |
| 168 | reg &= ~FUSB300_EPSET1_INTERVAL(0x7); |
| 169 | reg |= FUSB300_EPSET1_INTERVAL(info.interval); |
| 170 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 171 | } |
| 172 | |
| 173 | static void fusb300_set_bwnum(struct fusb300 *fusb300, |
| 174 | struct fusb300_ep_info info) |
| 175 | { |
| 176 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 177 | |
| 178 | reg &= ~FUSB300_EPSET1_BWNUM(0x3); |
| 179 | reg |= FUSB300_EPSET1_BWNUM(info.bw_num); |
| 180 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum)); |
| 181 | } |
| 182 | |
| 183 | static void set_ep_reg(struct fusb300 *fusb300, |
| 184 | struct fusb300_ep_info info) |
| 185 | { |
| 186 | fusb300_set_eptype(fusb300, info); |
| 187 | fusb300_set_epdir(fusb300, info); |
| 188 | fusb300_set_epmps(fusb300, info); |
| 189 | |
| 190 | if (info.interval) |
| 191 | fusb300_set_interval(fusb300, info); |
| 192 | |
| 193 | if (info.bw_num) |
| 194 | fusb300_set_bwnum(fusb300, info); |
| 195 | |
| 196 | fusb300_set_ep_active(fusb300, info.epnum); |
| 197 | } |
| 198 | |
| 199 | static int config_ep(struct fusb300_ep *ep, |
| 200 | const struct usb_endpoint_descriptor *desc) |
| 201 | { |
| 202 | struct fusb300 *fusb300 = ep->fusb300; |
| 203 | struct fusb300_ep_info info; |
| 204 | |
| 205 | ep->desc = desc; |
| 206 | |
| 207 | info.interval = 0; |
| 208 | info.addrofs = 0; |
| 209 | info.bw_num = 0; |
| 210 | |
| 211 | info.type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; |
| 212 | info.dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0; |
Kuninori Morimoto | 29cc889 | 2011-08-23 03:12:03 -0700 | [diff] [blame] | 213 | info.maxpacket = usb_endpoint_maxp(desc); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 214 | info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
| 215 | |
| 216 | if ((info.type == USB_ENDPOINT_XFER_INT) || |
| 217 | (info.type == USB_ENDPOINT_XFER_ISOC)) { |
| 218 | info.interval = desc->bInterval; |
| 219 | if (info.type == USB_ENDPOINT_XFER_ISOC) |
| 220 | info.bw_num = ((desc->wMaxPacketSize & 0x1800) >> 11); |
| 221 | } |
| 222 | |
| 223 | ep_fifo_setting(fusb300, info); |
| 224 | |
| 225 | set_ep_reg(fusb300, info); |
| 226 | |
| 227 | fusb300_ep_setting(ep, info); |
| 228 | |
| 229 | fusb300->ep[info.epnum] = ep; |
| 230 | |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | static int fusb300_enable(struct usb_ep *_ep, |
| 235 | const struct usb_endpoint_descriptor *desc) |
| 236 | { |
| 237 | struct fusb300_ep *ep; |
| 238 | |
| 239 | ep = container_of(_ep, struct fusb300_ep, ep); |
| 240 | |
| 241 | if (ep->fusb300->reenum) { |
| 242 | ep->fusb300->fifo_entry_num = 0; |
| 243 | ep->fusb300->addrofs = 0; |
| 244 | ep->fusb300->reenum = 0; |
| 245 | } |
| 246 | |
| 247 | return config_ep(ep, desc); |
| 248 | } |
| 249 | |
| 250 | static int fusb300_disable(struct usb_ep *_ep) |
| 251 | { |
| 252 | struct fusb300_ep *ep; |
| 253 | struct fusb300_request *req; |
| 254 | unsigned long flags; |
| 255 | |
| 256 | ep = container_of(_ep, struct fusb300_ep, ep); |
| 257 | |
| 258 | BUG_ON(!ep); |
| 259 | |
| 260 | while (!list_empty(&ep->queue)) { |
| 261 | req = list_entry(ep->queue.next, struct fusb300_request, queue); |
| 262 | spin_lock_irqsave(&ep->fusb300->lock, flags); |
| 263 | done(ep, req, -ECONNRESET); |
| 264 | spin_unlock_irqrestore(&ep->fusb300->lock, flags); |
| 265 | } |
| 266 | |
| 267 | return fusb300_ep_release(ep); |
| 268 | } |
| 269 | |
| 270 | static struct usb_request *fusb300_alloc_request(struct usb_ep *_ep, |
| 271 | gfp_t gfp_flags) |
| 272 | { |
| 273 | struct fusb300_request *req; |
| 274 | |
| 275 | req = kzalloc(sizeof(struct fusb300_request), gfp_flags); |
| 276 | if (!req) |
| 277 | return NULL; |
| 278 | INIT_LIST_HEAD(&req->queue); |
| 279 | |
| 280 | return &req->req; |
| 281 | } |
| 282 | |
| 283 | static void fusb300_free_request(struct usb_ep *_ep, struct usb_request *_req) |
| 284 | { |
| 285 | struct fusb300_request *req; |
| 286 | |
| 287 | req = container_of(_req, struct fusb300_request, req); |
| 288 | kfree(req); |
| 289 | } |
| 290 | |
| 291 | static int enable_fifo_int(struct fusb300_ep *ep) |
| 292 | { |
| 293 | struct fusb300 *fusb300 = ep->fusb300; |
| 294 | |
| 295 | if (ep->epnum) { |
| 296 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_IGER0, |
| 297 | FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum)); |
| 298 | } else { |
| 299 | pr_err("can't enable_fifo_int ep0\n"); |
| 300 | return -EINVAL; |
| 301 | } |
| 302 | |
| 303 | return 0; |
| 304 | } |
| 305 | |
| 306 | static int disable_fifo_int(struct fusb300_ep *ep) |
| 307 | { |
| 308 | struct fusb300 *fusb300 = ep->fusb300; |
| 309 | |
| 310 | if (ep->epnum) { |
| 311 | fusb300_disable_bit(fusb300, FUSB300_OFFSET_IGER0, |
| 312 | FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum)); |
| 313 | } else { |
| 314 | pr_err("can't disable_fifo_int ep0\n"); |
| 315 | return -EINVAL; |
| 316 | } |
| 317 | |
| 318 | return 0; |
| 319 | } |
| 320 | |
| 321 | static void fusb300_set_cxlen(struct fusb300 *fusb300, u32 length) |
| 322 | { |
| 323 | u32 reg; |
| 324 | |
| 325 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR); |
| 326 | reg &= ~FUSB300_CSR_LEN_MSK; |
| 327 | reg |= FUSB300_CSR_LEN(length); |
| 328 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_CSR); |
| 329 | } |
| 330 | |
| 331 | /* write data to cx fifo */ |
| 332 | static void fusb300_wrcxf(struct fusb300_ep *ep, |
| 333 | struct fusb300_request *req) |
| 334 | { |
| 335 | int i = 0; |
| 336 | u8 *tmp; |
| 337 | u32 data; |
| 338 | struct fusb300 *fusb300 = ep->fusb300; |
| 339 | u32 length = req->req.length - req->req.actual; |
| 340 | |
| 341 | tmp = req->req.buf + req->req.actual; |
| 342 | |
| 343 | if (length > SS_CTL_MAX_PACKET_SIZE) { |
| 344 | fusb300_set_cxlen(fusb300, SS_CTL_MAX_PACKET_SIZE); |
| 345 | for (i = (SS_CTL_MAX_PACKET_SIZE >> 2); i > 0; i--) { |
| 346 | data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 | |
| 347 | *(tmp + 3) << 24; |
| 348 | iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 349 | tmp += 4; |
| 350 | } |
| 351 | req->req.actual += SS_CTL_MAX_PACKET_SIZE; |
| 352 | } else { /* length is less than max packet size */ |
| 353 | fusb300_set_cxlen(fusb300, length); |
| 354 | for (i = length >> 2; i > 0; i--) { |
| 355 | data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 | |
| 356 | *(tmp + 3) << 24; |
| 357 | printk(KERN_DEBUG " 0x%x\n", data); |
| 358 | iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 359 | tmp = tmp + 4; |
| 360 | } |
| 361 | switch (length % 4) { |
| 362 | case 1: |
| 363 | data = *tmp; |
| 364 | printk(KERN_DEBUG " 0x%x\n", data); |
| 365 | iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 366 | break; |
| 367 | case 2: |
| 368 | data = *tmp | *(tmp + 1) << 8; |
| 369 | printk(KERN_DEBUG " 0x%x\n", data); |
| 370 | iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 371 | break; |
| 372 | case 3: |
| 373 | data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16; |
| 374 | printk(KERN_DEBUG " 0x%x\n", data); |
| 375 | iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 376 | break; |
| 377 | default: |
| 378 | break; |
| 379 | } |
| 380 | req->req.actual += length; |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | static void fusb300_set_epnstall(struct fusb300 *fusb300, u8 ep) |
| 385 | { |
| 386 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep), |
| 387 | FUSB300_EPSET0_STL); |
| 388 | } |
| 389 | |
| 390 | static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep) |
| 391 | { |
| 392 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep)); |
| 393 | |
| 394 | if (reg & FUSB300_EPSET0_STL) { |
| 395 | printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep); |
| 396 | reg &= ~FUSB300_EPSET0_STL; |
| 397 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep)); |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | static void ep0_queue(struct fusb300_ep *ep, struct fusb300_request *req) |
| 402 | { |
| 403 | if (ep->fusb300->ep0_dir) { /* if IN */ |
| 404 | if (req->req.length) { |
| 405 | fusb300_wrcxf(ep, req); |
| 406 | } else |
| 407 | printk(KERN_DEBUG "%s : req->req.length = 0x%x\n", |
| 408 | __func__, req->req.length); |
| 409 | if ((req->req.length == req->req.actual) || |
| 410 | (req->req.actual < ep->ep.maxpacket)) |
| 411 | done(ep, req, 0); |
| 412 | } else { /* OUT */ |
| 413 | if (!req->req.length) |
| 414 | done(ep, req, 0); |
| 415 | else |
| 416 | fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER1, |
| 417 | FUSB300_IGER1_CX_OUT_INT); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | static int fusb300_queue(struct usb_ep *_ep, struct usb_request *_req, |
| 422 | gfp_t gfp_flags) |
| 423 | { |
| 424 | struct fusb300_ep *ep; |
| 425 | struct fusb300_request *req; |
| 426 | unsigned long flags; |
| 427 | int request = 0; |
| 428 | |
| 429 | ep = container_of(_ep, struct fusb300_ep, ep); |
| 430 | req = container_of(_req, struct fusb300_request, req); |
| 431 | |
| 432 | if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN) |
| 433 | return -ESHUTDOWN; |
| 434 | |
| 435 | spin_lock_irqsave(&ep->fusb300->lock, flags); |
| 436 | |
| 437 | if (list_empty(&ep->queue)) |
| 438 | request = 1; |
| 439 | |
| 440 | list_add_tail(&req->queue, &ep->queue); |
| 441 | |
| 442 | req->req.actual = 0; |
| 443 | req->req.status = -EINPROGRESS; |
| 444 | |
| 445 | if (ep->desc == NULL) /* ep0 */ |
| 446 | ep0_queue(ep, req); |
| 447 | else if (request && !ep->stall) |
| 448 | enable_fifo_int(ep); |
| 449 | |
| 450 | spin_unlock_irqrestore(&ep->fusb300->lock, flags); |
| 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | static int fusb300_dequeue(struct usb_ep *_ep, struct usb_request *_req) |
| 456 | { |
| 457 | struct fusb300_ep *ep; |
| 458 | struct fusb300_request *req; |
| 459 | unsigned long flags; |
| 460 | |
| 461 | ep = container_of(_ep, struct fusb300_ep, ep); |
| 462 | req = container_of(_req, struct fusb300_request, req); |
| 463 | |
| 464 | spin_lock_irqsave(&ep->fusb300->lock, flags); |
| 465 | if (!list_empty(&ep->queue)) |
| 466 | done(ep, req, -ECONNRESET); |
| 467 | spin_unlock_irqrestore(&ep->fusb300->lock, flags); |
| 468 | |
| 469 | return 0; |
| 470 | } |
| 471 | |
| 472 | static int fusb300_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedge) |
| 473 | { |
| 474 | struct fusb300_ep *ep; |
| 475 | struct fusb300 *fusb300; |
| 476 | unsigned long flags; |
| 477 | int ret = 0; |
| 478 | |
| 479 | ep = container_of(_ep, struct fusb300_ep, ep); |
| 480 | |
| 481 | fusb300 = ep->fusb300; |
| 482 | |
| 483 | spin_lock_irqsave(&ep->fusb300->lock, flags); |
| 484 | |
| 485 | if (!list_empty(&ep->queue)) { |
| 486 | ret = -EAGAIN; |
| 487 | goto out; |
| 488 | } |
| 489 | |
| 490 | if (value) { |
| 491 | fusb300_set_epnstall(fusb300, ep->epnum); |
| 492 | ep->stall = 1; |
| 493 | if (wedge) |
| 494 | ep->wedged = 1; |
| 495 | } else { |
| 496 | fusb300_clear_epnstall(fusb300, ep->epnum); |
| 497 | ep->stall = 0; |
| 498 | ep->wedged = 0; |
| 499 | } |
| 500 | |
| 501 | out: |
| 502 | spin_unlock_irqrestore(&ep->fusb300->lock, flags); |
| 503 | return ret; |
| 504 | } |
| 505 | |
| 506 | static int fusb300_set_halt(struct usb_ep *_ep, int value) |
| 507 | { |
| 508 | return fusb300_set_halt_and_wedge(_ep, value, 0); |
| 509 | } |
| 510 | |
| 511 | static int fusb300_set_wedge(struct usb_ep *_ep) |
| 512 | { |
| 513 | return fusb300_set_halt_and_wedge(_ep, 1, 1); |
| 514 | } |
| 515 | |
| 516 | static void fusb300_fifo_flush(struct usb_ep *_ep) |
| 517 | { |
| 518 | } |
| 519 | |
| 520 | static struct usb_ep_ops fusb300_ep_ops = { |
| 521 | .enable = fusb300_enable, |
| 522 | .disable = fusb300_disable, |
| 523 | |
| 524 | .alloc_request = fusb300_alloc_request, |
| 525 | .free_request = fusb300_free_request, |
| 526 | |
| 527 | .queue = fusb300_queue, |
| 528 | .dequeue = fusb300_dequeue, |
| 529 | |
| 530 | .set_halt = fusb300_set_halt, |
| 531 | .fifo_flush = fusb300_fifo_flush, |
| 532 | .set_wedge = fusb300_set_wedge, |
| 533 | }; |
| 534 | |
| 535 | /*****************************************************************************/ |
| 536 | static void fusb300_clear_int(struct fusb300 *fusb300, u32 offset, |
| 537 | u32 value) |
| 538 | { |
| 539 | iowrite32(value, fusb300->reg + offset); |
| 540 | } |
| 541 | |
| 542 | static void fusb300_reset(void) |
| 543 | { |
| 544 | } |
| 545 | |
| 546 | static void fusb300_set_cxstall(struct fusb300 *fusb300) |
| 547 | { |
| 548 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR, |
| 549 | FUSB300_CSR_STL); |
| 550 | } |
| 551 | |
| 552 | static void fusb300_set_cxdone(struct fusb300 *fusb300) |
| 553 | { |
| 554 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR, |
| 555 | FUSB300_CSR_DONE); |
| 556 | } |
| 557 | |
| 558 | /* read data from cx fifo */ |
| 559 | void fusb300_rdcxf(struct fusb300 *fusb300, |
| 560 | u8 *buffer, u32 length) |
| 561 | { |
| 562 | int i = 0; |
| 563 | u8 *tmp; |
| 564 | u32 data; |
| 565 | |
| 566 | tmp = buffer; |
| 567 | |
| 568 | for (i = (length >> 2); i > 0; i--) { |
| 569 | data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 570 | printk(KERN_DEBUG " 0x%x\n", data); |
| 571 | *tmp = data & 0xFF; |
| 572 | *(tmp + 1) = (data >> 8) & 0xFF; |
| 573 | *(tmp + 2) = (data >> 16) & 0xFF; |
| 574 | *(tmp + 3) = (data >> 24) & 0xFF; |
| 575 | tmp = tmp + 4; |
| 576 | } |
| 577 | |
| 578 | switch (length % 4) { |
| 579 | case 1: |
| 580 | data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 581 | printk(KERN_DEBUG " 0x%x\n", data); |
| 582 | *tmp = data & 0xFF; |
| 583 | break; |
| 584 | case 2: |
| 585 | data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 586 | printk(KERN_DEBUG " 0x%x\n", data); |
| 587 | *tmp = data & 0xFF; |
| 588 | *(tmp + 1) = (data >> 8) & 0xFF; |
| 589 | break; |
| 590 | case 3: |
| 591 | data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT); |
| 592 | printk(KERN_DEBUG " 0x%x\n", data); |
| 593 | *tmp = data & 0xFF; |
| 594 | *(tmp + 1) = (data >> 8) & 0xFF; |
| 595 | *(tmp + 2) = (data >> 16) & 0xFF; |
| 596 | break; |
| 597 | default: |
| 598 | break; |
| 599 | } |
| 600 | } |
| 601 | |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 602 | static void fusb300_rdfifo(struct fusb300_ep *ep, |
| 603 | struct fusb300_request *req, |
| 604 | u32 length) |
| 605 | { |
| 606 | int i = 0; |
| 607 | u8 *tmp; |
| 608 | u32 data, reg; |
| 609 | struct fusb300 *fusb300 = ep->fusb300; |
| 610 | |
| 611 | tmp = req->req.buf + req->req.actual; |
| 612 | req->req.actual += length; |
| 613 | |
| 614 | if (req->req.actual > req->req.length) |
| 615 | printk(KERN_DEBUG "req->req.actual > req->req.length\n"); |
| 616 | |
| 617 | for (i = (length >> 2); i > 0; i--) { |
| 618 | data = ioread32(fusb300->reg + |
| 619 | FUSB300_OFFSET_EPPORT(ep->epnum)); |
| 620 | *tmp = data & 0xFF; |
| 621 | *(tmp + 1) = (data >> 8) & 0xFF; |
| 622 | *(tmp + 2) = (data >> 16) & 0xFF; |
| 623 | *(tmp + 3) = (data >> 24) & 0xFF; |
| 624 | tmp = tmp + 4; |
| 625 | } |
| 626 | |
| 627 | switch (length % 4) { |
| 628 | case 1: |
| 629 | data = ioread32(fusb300->reg + |
| 630 | FUSB300_OFFSET_EPPORT(ep->epnum)); |
| 631 | *tmp = data & 0xFF; |
| 632 | break; |
| 633 | case 2: |
| 634 | data = ioread32(fusb300->reg + |
| 635 | FUSB300_OFFSET_EPPORT(ep->epnum)); |
| 636 | *tmp = data & 0xFF; |
| 637 | *(tmp + 1) = (data >> 8) & 0xFF; |
| 638 | break; |
| 639 | case 3: |
| 640 | data = ioread32(fusb300->reg + |
| 641 | FUSB300_OFFSET_EPPORT(ep->epnum)); |
| 642 | *tmp = data & 0xFF; |
| 643 | *(tmp + 1) = (data >> 8) & 0xFF; |
| 644 | *(tmp + 2) = (data >> 16) & 0xFF; |
| 645 | break; |
| 646 | default: |
| 647 | break; |
| 648 | } |
| 649 | |
| 650 | do { |
| 651 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1); |
| 652 | reg &= FUSB300_IGR1_SYNF0_EMPTY_INT; |
| 653 | if (i) |
| 654 | printk(KERN_INFO "sync fifo is not empty!\n"); |
| 655 | i++; |
| 656 | } while (!reg); |
| 657 | } |
| 658 | |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 659 | static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep) |
| 660 | { |
| 661 | u8 value; |
| 662 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep)); |
| 663 | |
| 664 | value = reg & FUSB300_EPSET0_STL; |
| 665 | |
| 666 | return value; |
| 667 | } |
| 668 | |
| 669 | static u8 fusb300_get_cxstall(struct fusb300 *fusb300) |
| 670 | { |
| 671 | u8 value; |
| 672 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR); |
| 673 | |
| 674 | value = (reg & FUSB300_CSR_STL) >> 1; |
| 675 | |
| 676 | return value; |
| 677 | } |
| 678 | |
| 679 | static void request_error(struct fusb300 *fusb300) |
| 680 | { |
| 681 | fusb300_set_cxstall(fusb300); |
| 682 | printk(KERN_DEBUG "request error!!\n"); |
| 683 | } |
| 684 | |
| 685 | static void get_status(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) |
| 686 | __releases(fusb300->lock) |
| 687 | __acquires(fusb300->lock) |
| 688 | { |
| 689 | u8 ep; |
| 690 | u16 status = 0; |
| 691 | u16 w_index = ctrl->wIndex; |
| 692 | |
| 693 | switch (ctrl->bRequestType & USB_RECIP_MASK) { |
| 694 | case USB_RECIP_DEVICE: |
| 695 | status = 1 << USB_DEVICE_SELF_POWERED; |
| 696 | break; |
| 697 | case USB_RECIP_INTERFACE: |
| 698 | status = 0; |
| 699 | break; |
| 700 | case USB_RECIP_ENDPOINT: |
| 701 | ep = w_index & USB_ENDPOINT_NUMBER_MASK; |
| 702 | if (ep) { |
| 703 | if (fusb300_get_epnstall(fusb300, ep)) |
| 704 | status = 1 << USB_ENDPOINT_HALT; |
| 705 | } else { |
| 706 | if (fusb300_get_cxstall(fusb300)) |
| 707 | status = 0; |
| 708 | } |
| 709 | break; |
| 710 | |
| 711 | default: |
| 712 | request_error(fusb300); |
| 713 | return; /* exit */ |
| 714 | } |
| 715 | |
| 716 | fusb300->ep0_data = cpu_to_le16(status); |
| 717 | fusb300->ep0_req->buf = &fusb300->ep0_data; |
| 718 | fusb300->ep0_req->length = 2; |
| 719 | |
| 720 | spin_unlock(&fusb300->lock); |
| 721 | fusb300_queue(fusb300->gadget.ep0, fusb300->ep0_req, GFP_KERNEL); |
| 722 | spin_lock(&fusb300->lock); |
| 723 | } |
| 724 | |
| 725 | static void set_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) |
| 726 | { |
| 727 | u8 ep; |
| 728 | |
| 729 | switch (ctrl->bRequestType & USB_RECIP_MASK) { |
| 730 | case USB_RECIP_DEVICE: |
| 731 | fusb300_set_cxdone(fusb300); |
| 732 | break; |
| 733 | case USB_RECIP_INTERFACE: |
| 734 | fusb300_set_cxdone(fusb300); |
| 735 | break; |
| 736 | case USB_RECIP_ENDPOINT: { |
| 737 | u16 w_index = le16_to_cpu(ctrl->wIndex); |
| 738 | |
| 739 | ep = w_index & USB_ENDPOINT_NUMBER_MASK; |
| 740 | if (ep) |
| 741 | fusb300_set_epnstall(fusb300, ep); |
| 742 | else |
| 743 | fusb300_set_cxstall(fusb300); |
| 744 | fusb300_set_cxdone(fusb300); |
| 745 | } |
| 746 | break; |
| 747 | default: |
| 748 | request_error(fusb300); |
| 749 | break; |
| 750 | } |
| 751 | } |
| 752 | |
| 753 | static void fusb300_clear_seqnum(struct fusb300 *fusb300, u8 ep) |
| 754 | { |
| 755 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep), |
| 756 | FUSB300_EPSET0_CLRSEQNUM); |
| 757 | } |
| 758 | |
| 759 | static void clear_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) |
| 760 | { |
| 761 | struct fusb300_ep *ep = |
| 762 | fusb300->ep[ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK]; |
| 763 | |
| 764 | switch (ctrl->bRequestType & USB_RECIP_MASK) { |
| 765 | case USB_RECIP_DEVICE: |
| 766 | fusb300_set_cxdone(fusb300); |
| 767 | break; |
| 768 | case USB_RECIP_INTERFACE: |
| 769 | fusb300_set_cxdone(fusb300); |
| 770 | break; |
| 771 | case USB_RECIP_ENDPOINT: |
| 772 | if (ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK) { |
| 773 | if (ep->wedged) { |
| 774 | fusb300_set_cxdone(fusb300); |
| 775 | break; |
| 776 | } |
| 777 | if (ep->stall) { |
| 778 | ep->stall = 0; |
| 779 | fusb300_clear_seqnum(fusb300, ep->epnum); |
| 780 | fusb300_clear_epnstall(fusb300, ep->epnum); |
| 781 | if (!list_empty(&ep->queue)) |
| 782 | enable_fifo_int(ep); |
| 783 | } |
| 784 | } |
| 785 | fusb300_set_cxdone(fusb300); |
| 786 | break; |
| 787 | default: |
| 788 | request_error(fusb300); |
| 789 | break; |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | static void fusb300_set_dev_addr(struct fusb300 *fusb300, u16 addr) |
| 794 | { |
| 795 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_DAR); |
| 796 | |
| 797 | reg &= ~FUSB300_DAR_DRVADDR_MSK; |
| 798 | reg |= FUSB300_DAR_DRVADDR(addr); |
| 799 | |
| 800 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_DAR); |
| 801 | } |
| 802 | |
| 803 | static void set_address(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) |
| 804 | { |
| 805 | if (ctrl->wValue >= 0x0100) |
| 806 | request_error(fusb300); |
| 807 | else { |
| 808 | fusb300_set_dev_addr(fusb300, ctrl->wValue); |
| 809 | fusb300_set_cxdone(fusb300); |
| 810 | } |
| 811 | } |
| 812 | |
| 813 | #define UVC_COPY_DESCRIPTORS(mem, src) \ |
| 814 | do { \ |
| 815 | const struct usb_descriptor_header * const *__src; \ |
| 816 | for (__src = src; *__src; ++__src) { \ |
| 817 | memcpy(mem, *__src, (*__src)->bLength); \ |
| 818 | mem += (*__src)->bLength; \ |
| 819 | } \ |
| 820 | } while (0) |
| 821 | |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 822 | static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) |
| 823 | { |
| 824 | u8 *p = (u8 *)ctrl; |
| 825 | u8 ret = 0; |
| 826 | u8 i = 0; |
| 827 | |
| 828 | fusb300_rdcxf(fusb300, p, 8); |
| 829 | fusb300->ep0_dir = ctrl->bRequestType & USB_DIR_IN; |
| 830 | fusb300->ep0_length = ctrl->wLength; |
| 831 | |
| 832 | /* check request */ |
| 833 | if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) { |
| 834 | switch (ctrl->bRequest) { |
| 835 | case USB_REQ_GET_STATUS: |
| 836 | get_status(fusb300, ctrl); |
| 837 | break; |
| 838 | case USB_REQ_CLEAR_FEATURE: |
| 839 | clear_feature(fusb300, ctrl); |
| 840 | break; |
| 841 | case USB_REQ_SET_FEATURE: |
| 842 | set_feature(fusb300, ctrl); |
| 843 | break; |
| 844 | case USB_REQ_SET_ADDRESS: |
| 845 | set_address(fusb300, ctrl); |
| 846 | break; |
| 847 | case USB_REQ_SET_CONFIGURATION: |
| 848 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_DAR, |
| 849 | FUSB300_DAR_SETCONFG); |
| 850 | /* clear sequence number */ |
| 851 | for (i = 1; i <= FUSB300_MAX_NUM_EP; i++) |
| 852 | fusb300_clear_seqnum(fusb300, i); |
| 853 | fusb300->reenum = 1; |
| 854 | ret = 1; |
| 855 | break; |
| 856 | default: |
| 857 | ret = 1; |
| 858 | break; |
| 859 | } |
| 860 | } else |
| 861 | ret = 1; |
| 862 | |
| 863 | return ret; |
| 864 | } |
| 865 | |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 866 | static void done(struct fusb300_ep *ep, struct fusb300_request *req, |
| 867 | int status) |
| 868 | { |
| 869 | list_del_init(&req->queue); |
| 870 | |
| 871 | /* don't modify queue heads during completion callback */ |
| 872 | if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN) |
| 873 | req->req.status = -ESHUTDOWN; |
| 874 | else |
| 875 | req->req.status = status; |
| 876 | |
| 877 | spin_unlock(&ep->fusb300->lock); |
| 878 | req->req.complete(&ep->ep, &req->req); |
| 879 | spin_lock(&ep->fusb300->lock); |
| 880 | |
| 881 | if (ep->epnum) { |
| 882 | disable_fifo_int(ep); |
| 883 | if (!list_empty(&ep->queue)) |
| 884 | enable_fifo_int(ep); |
| 885 | } else |
| 886 | fusb300_set_cxdone(ep->fusb300); |
| 887 | } |
| 888 | |
Sebastian Andrzej Siewior | 1425b80 | 2011-07-05 15:59:05 +0300 | [diff] [blame] | 889 | static void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, dma_addr_t d, |
| 890 | u32 len) |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 891 | { |
| 892 | u32 value; |
| 893 | u32 reg; |
| 894 | |
| 895 | /* wait SW owner */ |
| 896 | do { |
| 897 | reg = ioread32(ep->fusb300->reg + |
| 898 | FUSB300_OFFSET_EPPRD_W0(ep->epnum)); |
| 899 | reg &= FUSB300_EPPRD0_H; |
| 900 | } while (reg); |
| 901 | |
Sebastian Andrzej Siewior | 1425b80 | 2011-07-05 15:59:05 +0300 | [diff] [blame] | 902 | iowrite32(d, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W1(ep->epnum)); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 903 | |
Sebastian Andrzej Siewior | 1425b80 | 2011-07-05 15:59:05 +0300 | [diff] [blame] | 904 | value = FUSB300_EPPRD0_BTC(len) | FUSB300_EPPRD0_H | |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 905 | FUSB300_EPPRD0_F | FUSB300_EPPRD0_L | FUSB300_EPPRD0_I; |
| 906 | iowrite32(value, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W0(ep->epnum)); |
| 907 | |
| 908 | iowrite32(0x0, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W2(ep->epnum)); |
| 909 | |
| 910 | fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_EPPRDRDY, |
| 911 | FUSB300_EPPRDR_EP_PRD_RDY(ep->epnum)); |
| 912 | } |
| 913 | |
| 914 | static void fusb300_wait_idma_finished(struct fusb300_ep *ep) |
| 915 | { |
| 916 | u32 reg; |
| 917 | |
| 918 | do { |
| 919 | reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR1); |
| 920 | if ((reg & FUSB300_IGR1_VBUS_CHG_INT) || |
| 921 | (reg & FUSB300_IGR1_WARM_RST_INT) || |
| 922 | (reg & FUSB300_IGR1_HOT_RST_INT) || |
| 923 | (reg & FUSB300_IGR1_USBRST_INT) |
| 924 | ) |
| 925 | goto IDMA_RESET; |
| 926 | reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR0); |
| 927 | reg &= FUSB300_IGR0_EPn_PRD_INT(ep->epnum); |
| 928 | } while (!reg); |
| 929 | |
| 930 | fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0, |
| 931 | FUSB300_IGR0_EPn_PRD_INT(ep->epnum)); |
| 932 | IDMA_RESET: |
| 933 | fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGER0, |
| 934 | FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); |
| 935 | } |
| 936 | |
| 937 | static void fusb300_set_idma(struct fusb300_ep *ep, |
| 938 | struct fusb300_request *req) |
| 939 | { |
| 940 | dma_addr_t d; |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 941 | |
| 942 | d = dma_map_single(NULL, req->req.buf, req->req.length, DMA_TO_DEVICE); |
| 943 | |
| 944 | if (dma_mapping_error(NULL, d)) { |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 945 | printk(KERN_DEBUG "dma_mapping_error\n"); |
Sebastian Andrzej Siewior | 1425b80 | 2011-07-05 15:59:05 +0300 | [diff] [blame] | 946 | return; |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 947 | } |
| 948 | |
| 949 | dma_sync_single_for_device(NULL, d, req->req.length, DMA_TO_DEVICE); |
| 950 | |
| 951 | fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0, |
| 952 | FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); |
| 953 | |
Sebastian Andrzej Siewior | 1425b80 | 2011-07-05 15:59:05 +0300 | [diff] [blame] | 954 | fusb300_fill_idma_prdtbl(ep, d, req->req.length); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 955 | /* check idma is done */ |
| 956 | fusb300_wait_idma_finished(ep); |
| 957 | |
Sebastian Andrzej Siewior | 1425b80 | 2011-07-05 15:59:05 +0300 | [diff] [blame] | 958 | dma_unmap_single(NULL, d, req->req.length, DMA_TO_DEVICE); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 959 | } |
| 960 | |
| 961 | static void in_ep_fifo_handler(struct fusb300_ep *ep) |
| 962 | { |
| 963 | struct fusb300_request *req = list_entry(ep->queue.next, |
| 964 | struct fusb300_request, queue); |
| 965 | |
Felipe Balbi | 4dbafd3 | 2011-07-04 11:09:15 +0300 | [diff] [blame] | 966 | if (req->req.length) |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 967 | fusb300_set_idma(ep, req); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 968 | done(ep, req, 0); |
| 969 | } |
| 970 | |
| 971 | static void out_ep_fifo_handler(struct fusb300_ep *ep) |
| 972 | { |
| 973 | struct fusb300 *fusb300 = ep->fusb300; |
| 974 | struct fusb300_request *req = list_entry(ep->queue.next, |
| 975 | struct fusb300_request, queue); |
| 976 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum)); |
| 977 | u32 length = reg & FUSB300_FFR_BYCNT; |
| 978 | |
| 979 | fusb300_rdfifo(ep, req, length); |
| 980 | |
| 981 | /* finish out transfer */ |
| 982 | if ((req->req.length == req->req.actual) || (length < ep->ep.maxpacket)) |
| 983 | done(ep, req, 0); |
| 984 | } |
| 985 | |
| 986 | static void check_device_mode(struct fusb300 *fusb300) |
| 987 | { |
| 988 | u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_GCR); |
| 989 | |
| 990 | switch (reg & FUSB300_GCR_DEVEN_MSK) { |
| 991 | case FUSB300_GCR_DEVEN_SS: |
| 992 | fusb300->gadget.speed = USB_SPEED_SUPER; |
| 993 | break; |
| 994 | case FUSB300_GCR_DEVEN_HS: |
| 995 | fusb300->gadget.speed = USB_SPEED_HIGH; |
| 996 | break; |
| 997 | case FUSB300_GCR_DEVEN_FS: |
| 998 | fusb300->gadget.speed = USB_SPEED_FULL; |
| 999 | break; |
| 1000 | default: |
| 1001 | fusb300->gadget.speed = USB_SPEED_UNKNOWN; |
| 1002 | break; |
| 1003 | } |
| 1004 | printk(KERN_INFO "dev_mode = %d\n", (reg & FUSB300_GCR_DEVEN_MSK)); |
| 1005 | } |
| 1006 | |
| 1007 | |
| 1008 | static void fusb300_ep0out(struct fusb300 *fusb300) |
| 1009 | { |
| 1010 | struct fusb300_ep *ep = fusb300->ep[0]; |
| 1011 | u32 reg; |
| 1012 | |
| 1013 | if (!list_empty(&ep->queue)) { |
| 1014 | struct fusb300_request *req; |
| 1015 | |
| 1016 | req = list_first_entry(&ep->queue, |
| 1017 | struct fusb300_request, queue); |
| 1018 | if (req->req.length) |
| 1019 | fusb300_rdcxf(ep->fusb300, req->req.buf, |
| 1020 | req->req.length); |
| 1021 | done(ep, req, 0); |
| 1022 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1); |
| 1023 | reg &= ~FUSB300_IGER1_CX_OUT_INT; |
| 1024 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_IGER1); |
| 1025 | } else |
| 1026 | pr_err("%s : empty queue\n", __func__); |
| 1027 | } |
| 1028 | |
| 1029 | static void fusb300_ep0in(struct fusb300 *fusb300) |
| 1030 | { |
| 1031 | struct fusb300_request *req; |
| 1032 | struct fusb300_ep *ep = fusb300->ep[0]; |
| 1033 | |
| 1034 | if ((!list_empty(&ep->queue)) && (fusb300->ep0_dir)) { |
| 1035 | req = list_entry(ep->queue.next, |
| 1036 | struct fusb300_request, queue); |
| 1037 | if (req->req.length) |
| 1038 | fusb300_wrcxf(ep, req); |
| 1039 | if ((req->req.length - req->req.actual) < ep->ep.maxpacket) |
| 1040 | done(ep, req, 0); |
| 1041 | } else |
| 1042 | fusb300_set_cxdone(fusb300); |
| 1043 | } |
| 1044 | |
| 1045 | static void fusb300_grp2_handler(void) |
| 1046 | { |
| 1047 | } |
| 1048 | |
| 1049 | static void fusb300_grp3_handler(void) |
| 1050 | { |
| 1051 | } |
| 1052 | |
| 1053 | static void fusb300_grp4_handler(void) |
| 1054 | { |
| 1055 | } |
| 1056 | |
| 1057 | static void fusb300_grp5_handler(void) |
| 1058 | { |
| 1059 | } |
| 1060 | |
| 1061 | static irqreturn_t fusb300_irq(int irq, void *_fusb300) |
| 1062 | { |
| 1063 | struct fusb300 *fusb300 = _fusb300; |
| 1064 | u32 int_grp1 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1); |
| 1065 | u32 int_grp1_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1); |
| 1066 | u32 int_grp0 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR0); |
| 1067 | u32 int_grp0_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER0); |
| 1068 | struct usb_ctrlrequest ctrl; |
| 1069 | u8 in; |
| 1070 | u32 reg; |
| 1071 | int i; |
| 1072 | |
| 1073 | spin_lock(&fusb300->lock); |
| 1074 | |
| 1075 | int_grp1 &= int_grp1_en; |
| 1076 | int_grp0 &= int_grp0_en; |
| 1077 | |
| 1078 | if (int_grp1 & FUSB300_IGR1_WARM_RST_INT) { |
| 1079 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1080 | FUSB300_IGR1_WARM_RST_INT); |
| 1081 | printk(KERN_INFO"fusb300_warmreset\n"); |
| 1082 | fusb300_reset(); |
| 1083 | } |
| 1084 | |
| 1085 | if (int_grp1 & FUSB300_IGR1_HOT_RST_INT) { |
| 1086 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1087 | FUSB300_IGR1_HOT_RST_INT); |
| 1088 | printk(KERN_INFO"fusb300_hotreset\n"); |
| 1089 | fusb300_reset(); |
| 1090 | } |
| 1091 | |
| 1092 | if (int_grp1 & FUSB300_IGR1_USBRST_INT) { |
| 1093 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1094 | FUSB300_IGR1_USBRST_INT); |
| 1095 | fusb300_reset(); |
| 1096 | } |
| 1097 | /* COMABT_INT has a highest priority */ |
| 1098 | |
| 1099 | if (int_grp1 & FUSB300_IGR1_CX_COMABT_INT) { |
| 1100 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1101 | FUSB300_IGR1_CX_COMABT_INT); |
| 1102 | printk(KERN_INFO"fusb300_ep0abt\n"); |
| 1103 | } |
| 1104 | |
| 1105 | if (int_grp1 & FUSB300_IGR1_VBUS_CHG_INT) { |
| 1106 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1107 | FUSB300_IGR1_VBUS_CHG_INT); |
| 1108 | printk(KERN_INFO"fusb300_vbus_change\n"); |
| 1109 | } |
| 1110 | |
| 1111 | if (int_grp1 & FUSB300_IGR1_U3_EXIT_FAIL_INT) { |
| 1112 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1113 | FUSB300_IGR1_U3_EXIT_FAIL_INT); |
| 1114 | } |
| 1115 | |
| 1116 | if (int_grp1 & FUSB300_IGR1_U2_EXIT_FAIL_INT) { |
| 1117 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1118 | FUSB300_IGR1_U2_EXIT_FAIL_INT); |
| 1119 | } |
| 1120 | |
| 1121 | if (int_grp1 & FUSB300_IGR1_U1_EXIT_FAIL_INT) { |
| 1122 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1123 | FUSB300_IGR1_U1_EXIT_FAIL_INT); |
| 1124 | } |
| 1125 | |
| 1126 | if (int_grp1 & FUSB300_IGR1_U2_ENTRY_FAIL_INT) { |
| 1127 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1128 | FUSB300_IGR1_U2_ENTRY_FAIL_INT); |
| 1129 | } |
| 1130 | |
| 1131 | if (int_grp1 & FUSB300_IGR1_U1_ENTRY_FAIL_INT) { |
| 1132 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1133 | FUSB300_IGR1_U1_ENTRY_FAIL_INT); |
| 1134 | } |
| 1135 | |
| 1136 | if (int_grp1 & FUSB300_IGR1_U3_EXIT_INT) { |
| 1137 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1138 | FUSB300_IGR1_U3_EXIT_INT); |
| 1139 | printk(KERN_INFO "FUSB300_IGR1_U3_EXIT_INT\n"); |
| 1140 | } |
| 1141 | |
| 1142 | if (int_grp1 & FUSB300_IGR1_U2_EXIT_INT) { |
| 1143 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1144 | FUSB300_IGR1_U2_EXIT_INT); |
| 1145 | printk(KERN_INFO "FUSB300_IGR1_U2_EXIT_INT\n"); |
| 1146 | } |
| 1147 | |
| 1148 | if (int_grp1 & FUSB300_IGR1_U1_EXIT_INT) { |
| 1149 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1150 | FUSB300_IGR1_U1_EXIT_INT); |
| 1151 | printk(KERN_INFO "FUSB300_IGR1_U1_EXIT_INT\n"); |
| 1152 | } |
| 1153 | |
| 1154 | if (int_grp1 & FUSB300_IGR1_U3_ENTRY_INT) { |
| 1155 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1156 | FUSB300_IGR1_U3_ENTRY_INT); |
| 1157 | printk(KERN_INFO "FUSB300_IGR1_U3_ENTRY_INT\n"); |
| 1158 | fusb300_enable_bit(fusb300, FUSB300_OFFSET_SSCR1, |
| 1159 | FUSB300_SSCR1_GO_U3_DONE); |
| 1160 | } |
| 1161 | |
| 1162 | if (int_grp1 & FUSB300_IGR1_U2_ENTRY_INT) { |
| 1163 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1164 | FUSB300_IGR1_U2_ENTRY_INT); |
| 1165 | printk(KERN_INFO "FUSB300_IGR1_U2_ENTRY_INT\n"); |
| 1166 | } |
| 1167 | |
| 1168 | if (int_grp1 & FUSB300_IGR1_U1_ENTRY_INT) { |
| 1169 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1170 | FUSB300_IGR1_U1_ENTRY_INT); |
| 1171 | printk(KERN_INFO "FUSB300_IGR1_U1_ENTRY_INT\n"); |
| 1172 | } |
| 1173 | |
| 1174 | if (int_grp1 & FUSB300_IGR1_RESM_INT) { |
| 1175 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1176 | FUSB300_IGR1_RESM_INT); |
| 1177 | printk(KERN_INFO "fusb300_resume\n"); |
| 1178 | } |
| 1179 | |
| 1180 | if (int_grp1 & FUSB300_IGR1_SUSP_INT) { |
| 1181 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1182 | FUSB300_IGR1_SUSP_INT); |
| 1183 | printk(KERN_INFO "fusb300_suspend\n"); |
| 1184 | } |
| 1185 | |
| 1186 | if (int_grp1 & FUSB300_IGR1_HS_LPM_INT) { |
| 1187 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1188 | FUSB300_IGR1_HS_LPM_INT); |
| 1189 | printk(KERN_INFO "fusb300_HS_LPM_INT\n"); |
| 1190 | } |
| 1191 | |
| 1192 | if (int_grp1 & FUSB300_IGR1_DEV_MODE_CHG_INT) { |
| 1193 | fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1, |
| 1194 | FUSB300_IGR1_DEV_MODE_CHG_INT); |
| 1195 | check_device_mode(fusb300); |
| 1196 | } |
| 1197 | |
| 1198 | if (int_grp1 & FUSB300_IGR1_CX_COMFAIL_INT) { |
| 1199 | fusb300_set_cxstall(fusb300); |
| 1200 | printk(KERN_INFO "fusb300_ep0fail\n"); |
| 1201 | } |
| 1202 | |
| 1203 | if (int_grp1 & FUSB300_IGR1_CX_SETUP_INT) { |
| 1204 | printk(KERN_INFO "fusb300_ep0setup\n"); |
| 1205 | if (setup_packet(fusb300, &ctrl)) { |
| 1206 | spin_unlock(&fusb300->lock); |
| 1207 | if (fusb300->driver->setup(&fusb300->gadget, &ctrl) < 0) |
| 1208 | fusb300_set_cxstall(fusb300); |
| 1209 | spin_lock(&fusb300->lock); |
| 1210 | } |
| 1211 | } |
| 1212 | |
| 1213 | if (int_grp1 & FUSB300_IGR1_CX_CMDEND_INT) |
| 1214 | printk(KERN_INFO "fusb300_cmdend\n"); |
| 1215 | |
| 1216 | |
| 1217 | if (int_grp1 & FUSB300_IGR1_CX_OUT_INT) { |
| 1218 | printk(KERN_INFO "fusb300_cxout\n"); |
| 1219 | fusb300_ep0out(fusb300); |
| 1220 | } |
| 1221 | |
| 1222 | if (int_grp1 & FUSB300_IGR1_CX_IN_INT) { |
| 1223 | printk(KERN_INFO "fusb300_cxin\n"); |
| 1224 | fusb300_ep0in(fusb300); |
| 1225 | } |
| 1226 | |
| 1227 | if (int_grp1 & FUSB300_IGR1_INTGRP5) |
| 1228 | fusb300_grp5_handler(); |
| 1229 | |
| 1230 | if (int_grp1 & FUSB300_IGR1_INTGRP4) |
| 1231 | fusb300_grp4_handler(); |
| 1232 | |
| 1233 | if (int_grp1 & FUSB300_IGR1_INTGRP3) |
| 1234 | fusb300_grp3_handler(); |
| 1235 | |
| 1236 | if (int_grp1 & FUSB300_IGR1_INTGRP2) |
| 1237 | fusb300_grp2_handler(); |
| 1238 | |
| 1239 | if (int_grp0) { |
| 1240 | for (i = 1; i < FUSB300_MAX_NUM_EP; i++) { |
| 1241 | if (int_grp0 & FUSB300_IGR0_EPn_FIFO_INT(i)) { |
| 1242 | reg = ioread32(fusb300->reg + |
| 1243 | FUSB300_OFFSET_EPSET1(i)); |
| 1244 | in = (reg & FUSB300_EPSET1_DIRIN) ? 1 : 0; |
| 1245 | if (in) |
| 1246 | in_ep_fifo_handler(fusb300->ep[i]); |
| 1247 | else |
| 1248 | out_ep_fifo_handler(fusb300->ep[i]); |
| 1249 | } |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | spin_unlock(&fusb300->lock); |
| 1254 | |
| 1255 | return IRQ_HANDLED; |
| 1256 | } |
| 1257 | |
| 1258 | static void fusb300_set_u2_timeout(struct fusb300 *fusb300, |
| 1259 | u32 time) |
| 1260 | { |
| 1261 | u32 reg; |
| 1262 | |
| 1263 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT); |
| 1264 | reg &= ~0xff; |
| 1265 | reg |= FUSB300_SSCR2_U2TIMEOUT(time); |
| 1266 | |
| 1267 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT); |
| 1268 | } |
| 1269 | |
| 1270 | static void fusb300_set_u1_timeout(struct fusb300 *fusb300, |
| 1271 | u32 time) |
| 1272 | { |
| 1273 | u32 reg; |
| 1274 | |
| 1275 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT); |
| 1276 | reg &= ~(0xff << 8); |
| 1277 | reg |= FUSB300_SSCR2_U1TIMEOUT(time); |
| 1278 | |
| 1279 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT); |
| 1280 | } |
| 1281 | |
| 1282 | static void init_controller(struct fusb300 *fusb300) |
| 1283 | { |
| 1284 | u32 reg; |
| 1285 | u32 mask = 0; |
| 1286 | u32 val = 0; |
| 1287 | |
| 1288 | /* split on */ |
| 1289 | mask = val = FUSB300_AHBBCR_S0_SPLIT_ON | FUSB300_AHBBCR_S1_SPLIT_ON; |
| 1290 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_AHBCR); |
| 1291 | reg &= ~mask; |
| 1292 | reg |= val; |
| 1293 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_AHBCR); |
| 1294 | |
| 1295 | /* enable high-speed LPM */ |
| 1296 | mask = val = FUSB300_HSCR_HS_LPM_PERMIT; |
| 1297 | reg = ioread32(fusb300->reg + FUSB300_OFFSET_HSCR); |
| 1298 | reg &= ~mask; |
| 1299 | reg |= val; |
| 1300 | iowrite32(reg, fusb300->reg + FUSB300_OFFSET_HSCR); |
| 1301 | |
| 1302 | /*set u1 u2 timmer*/ |
| 1303 | fusb300_set_u2_timeout(fusb300, 0xff); |
| 1304 | fusb300_set_u1_timeout(fusb300, 0xff); |
| 1305 | |
| 1306 | /* enable all grp1 interrupt */ |
| 1307 | iowrite32(0xcfffff9f, fusb300->reg + FUSB300_OFFSET_IGER1); |
| 1308 | } |
| 1309 | /*------------------------------------------------------------------------*/ |
| 1310 | static struct fusb300 *the_controller; |
| 1311 | |
Sebastian Andrzej Siewior | 0f91349 | 2011-06-28 16:33:47 +0300 | [diff] [blame] | 1312 | static int fusb300_udc_start(struct usb_gadget_driver *driver, |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1313 | int (*bind)(struct usb_gadget *)) |
| 1314 | { |
| 1315 | struct fusb300 *fusb300 = the_controller; |
| 1316 | int retval; |
| 1317 | |
| 1318 | if (!driver |
| 1319 | || driver->speed < USB_SPEED_FULL |
| 1320 | || !bind |
| 1321 | || !driver->setup) |
| 1322 | return -EINVAL; |
| 1323 | |
| 1324 | if (!fusb300) |
| 1325 | return -ENODEV; |
| 1326 | |
| 1327 | if (fusb300->driver) |
| 1328 | return -EBUSY; |
| 1329 | |
| 1330 | /* hook up the driver */ |
| 1331 | driver->driver.bus = NULL; |
| 1332 | fusb300->driver = driver; |
| 1333 | fusb300->gadget.dev.driver = &driver->driver; |
| 1334 | |
| 1335 | retval = device_add(&fusb300->gadget.dev); |
| 1336 | if (retval) { |
| 1337 | pr_err("device_add error (%d)\n", retval); |
| 1338 | goto error; |
| 1339 | } |
| 1340 | |
| 1341 | retval = bind(&fusb300->gadget); |
| 1342 | if (retval) { |
| 1343 | pr_err("bind to driver error (%d)\n", retval); |
| 1344 | device_del(&fusb300->gadget.dev); |
| 1345 | goto error; |
| 1346 | } |
| 1347 | |
| 1348 | return 0; |
| 1349 | |
| 1350 | error: |
| 1351 | fusb300->driver = NULL; |
| 1352 | fusb300->gadget.dev.driver = NULL; |
| 1353 | |
| 1354 | return retval; |
| 1355 | } |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1356 | |
Sebastian Andrzej Siewior | 0f91349 | 2011-06-28 16:33:47 +0300 | [diff] [blame] | 1357 | static int fusb300_udc_stop(struct usb_gadget_driver *driver) |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1358 | { |
| 1359 | struct fusb300 *fusb300 = the_controller; |
| 1360 | |
| 1361 | if (driver != fusb300->driver || !driver->unbind) |
| 1362 | return -EINVAL; |
| 1363 | |
| 1364 | driver->unbind(&fusb300->gadget); |
| 1365 | fusb300->gadget.dev.driver = NULL; |
| 1366 | |
| 1367 | init_controller(fusb300); |
| 1368 | device_del(&fusb300->gadget.dev); |
| 1369 | fusb300->driver = NULL; |
| 1370 | |
| 1371 | return 0; |
| 1372 | } |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1373 | /*--------------------------------------------------------------------------*/ |
| 1374 | |
| 1375 | static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active) |
| 1376 | { |
| 1377 | return 0; |
| 1378 | } |
| 1379 | |
| 1380 | static struct usb_gadget_ops fusb300_gadget_ops = { |
| 1381 | .pullup = fusb300_udc_pullup, |
Sebastian Andrzej Siewior | 0f91349 | 2011-06-28 16:33:47 +0300 | [diff] [blame] | 1382 | .start = fusb300_udc_start, |
| 1383 | .stop = fusb300_udc_stop, |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1384 | }; |
| 1385 | |
| 1386 | static int __exit fusb300_remove(struct platform_device *pdev) |
| 1387 | { |
| 1388 | struct fusb300 *fusb300 = dev_get_drvdata(&pdev->dev); |
| 1389 | |
Sebastian Andrzej Siewior | 0f91349 | 2011-06-28 16:33:47 +0300 | [diff] [blame] | 1390 | usb_del_gadget_udc(&fusb300->gadget); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1391 | iounmap(fusb300->reg); |
| 1392 | free_irq(platform_get_irq(pdev, 0), fusb300); |
| 1393 | |
| 1394 | fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req); |
| 1395 | kfree(fusb300); |
| 1396 | |
| 1397 | return 0; |
| 1398 | } |
| 1399 | |
| 1400 | static int __init fusb300_probe(struct platform_device *pdev) |
| 1401 | { |
| 1402 | struct resource *res, *ires, *ires1; |
| 1403 | void __iomem *reg = NULL; |
| 1404 | struct fusb300 *fusb300 = NULL; |
| 1405 | struct fusb300_ep *_ep[FUSB300_MAX_NUM_EP]; |
| 1406 | int ret = 0; |
| 1407 | int i; |
| 1408 | |
| 1409 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 1410 | if (!res) { |
| 1411 | ret = -ENODEV; |
| 1412 | pr_err("platform_get_resource error.\n"); |
| 1413 | goto clean_up; |
| 1414 | } |
| 1415 | |
| 1416 | ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 1417 | if (!ires) { |
| 1418 | ret = -ENODEV; |
| 1419 | dev_err(&pdev->dev, |
| 1420 | "platform_get_resource IORESOURCE_IRQ error.\n"); |
| 1421 | goto clean_up; |
| 1422 | } |
| 1423 | |
| 1424 | ires1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); |
| 1425 | if (!ires1) { |
| 1426 | ret = -ENODEV; |
| 1427 | dev_err(&pdev->dev, |
| 1428 | "platform_get_resource IORESOURCE_IRQ 1 error.\n"); |
| 1429 | goto clean_up; |
| 1430 | } |
| 1431 | |
| 1432 | reg = ioremap(res->start, resource_size(res)); |
| 1433 | if (reg == NULL) { |
| 1434 | ret = -ENOMEM; |
| 1435 | pr_err("ioremap error.\n"); |
| 1436 | goto clean_up; |
| 1437 | } |
| 1438 | |
| 1439 | /* initialize udc */ |
| 1440 | fusb300 = kzalloc(sizeof(struct fusb300), GFP_KERNEL); |
| 1441 | if (fusb300 == NULL) { |
| 1442 | pr_err("kzalloc error\n"); |
| 1443 | goto clean_up; |
| 1444 | } |
| 1445 | |
| 1446 | for (i = 0; i < FUSB300_MAX_NUM_EP; i++) { |
| 1447 | _ep[i] = kzalloc(sizeof(struct fusb300_ep), GFP_KERNEL); |
| 1448 | if (_ep[i] == NULL) { |
| 1449 | pr_err("_ep kzalloc error\n"); |
| 1450 | goto clean_up; |
| 1451 | } |
| 1452 | fusb300->ep[i] = _ep[i]; |
| 1453 | } |
| 1454 | |
| 1455 | spin_lock_init(&fusb300->lock); |
| 1456 | |
| 1457 | dev_set_drvdata(&pdev->dev, fusb300); |
| 1458 | |
| 1459 | fusb300->gadget.ops = &fusb300_gadget_ops; |
| 1460 | |
| 1461 | device_initialize(&fusb300->gadget.dev); |
| 1462 | |
| 1463 | dev_set_name(&fusb300->gadget.dev, "gadget"); |
| 1464 | |
| 1465 | fusb300->gadget.is_dualspeed = 1; |
| 1466 | fusb300->gadget.dev.parent = &pdev->dev; |
| 1467 | fusb300->gadget.dev.dma_mask = pdev->dev.dma_mask; |
| 1468 | fusb300->gadget.dev.release = pdev->dev.release; |
| 1469 | fusb300->gadget.name = udc_name; |
| 1470 | fusb300->reg = reg; |
| 1471 | |
Yong Zhang | b5dd18d | 2011-09-07 16:10:52 +0800 | [diff] [blame^] | 1472 | ret = request_irq(ires->start, fusb300_irq, IRQF_SHARED, |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1473 | udc_name, fusb300); |
| 1474 | if (ret < 0) { |
| 1475 | pr_err("request_irq error (%d)\n", ret); |
| 1476 | goto clean_up; |
| 1477 | } |
| 1478 | |
| 1479 | ret = request_irq(ires1->start, fusb300_irq, |
Yong Zhang | b5dd18d | 2011-09-07 16:10:52 +0800 | [diff] [blame^] | 1480 | IRQF_SHARED, udc_name, fusb300); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1481 | if (ret < 0) { |
| 1482 | pr_err("request_irq1 error (%d)\n", ret); |
| 1483 | goto clean_up; |
| 1484 | } |
| 1485 | |
| 1486 | INIT_LIST_HEAD(&fusb300->gadget.ep_list); |
| 1487 | |
| 1488 | for (i = 0; i < FUSB300_MAX_NUM_EP ; i++) { |
| 1489 | struct fusb300_ep *ep = fusb300->ep[i]; |
| 1490 | |
| 1491 | if (i != 0) { |
| 1492 | INIT_LIST_HEAD(&fusb300->ep[i]->ep.ep_list); |
| 1493 | list_add_tail(&fusb300->ep[i]->ep.ep_list, |
| 1494 | &fusb300->gadget.ep_list); |
| 1495 | } |
| 1496 | ep->fusb300 = fusb300; |
| 1497 | INIT_LIST_HEAD(&ep->queue); |
| 1498 | ep->ep.name = fusb300_ep_name[i]; |
| 1499 | ep->ep.ops = &fusb300_ep_ops; |
| 1500 | ep->ep.maxpacket = HS_BULK_MAX_PACKET_SIZE; |
| 1501 | } |
| 1502 | fusb300->ep[0]->ep.maxpacket = HS_CTL_MAX_PACKET_SIZE; |
| 1503 | fusb300->ep[0]->epnum = 0; |
| 1504 | fusb300->gadget.ep0 = &fusb300->ep[0]->ep; |
| 1505 | INIT_LIST_HEAD(&fusb300->gadget.ep0->ep_list); |
| 1506 | |
| 1507 | the_controller = fusb300; |
| 1508 | |
| 1509 | fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep, |
| 1510 | GFP_KERNEL); |
| 1511 | if (fusb300->ep0_req == NULL) |
| 1512 | goto clean_up3; |
| 1513 | |
| 1514 | init_controller(fusb300); |
Sebastian Andrzej Siewior | 0f91349 | 2011-06-28 16:33:47 +0300 | [diff] [blame] | 1515 | ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget); |
| 1516 | if (ret) |
| 1517 | goto err_add_udc; |
| 1518 | |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1519 | dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION); |
| 1520 | |
| 1521 | return 0; |
Sebastian Andrzej Siewior | 0f91349 | 2011-06-28 16:33:47 +0300 | [diff] [blame] | 1522 | err_add_udc: |
| 1523 | fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req); |
Yuan-Hsin Chen | 0fe6f1d | 2011-01-18 14:49:28 +0800 | [diff] [blame] | 1524 | |
| 1525 | clean_up3: |
| 1526 | free_irq(ires->start, fusb300); |
| 1527 | |
| 1528 | clean_up: |
| 1529 | if (fusb300) { |
| 1530 | if (fusb300->ep0_req) |
| 1531 | fusb300_free_request(&fusb300->ep[0]->ep, |
| 1532 | fusb300->ep0_req); |
| 1533 | kfree(fusb300); |
| 1534 | } |
| 1535 | if (reg) |
| 1536 | iounmap(reg); |
| 1537 | |
| 1538 | return ret; |
| 1539 | } |
| 1540 | |
| 1541 | static struct platform_driver fusb300_driver = { |
| 1542 | .remove = __exit_p(fusb300_remove), |
| 1543 | .driver = { |
| 1544 | .name = (char *) udc_name, |
| 1545 | .owner = THIS_MODULE, |
| 1546 | }, |
| 1547 | }; |
| 1548 | |
| 1549 | static int __init fusb300_udc_init(void) |
| 1550 | { |
| 1551 | return platform_driver_probe(&fusb300_driver, fusb300_probe); |
| 1552 | } |
| 1553 | |
| 1554 | module_init(fusb300_udc_init); |
| 1555 | |
| 1556 | static void __exit fusb300_udc_cleanup(void) |
| 1557 | { |
| 1558 | platform_driver_unregister(&fusb300_driver); |
| 1559 | } |
| 1560 | module_exit(fusb300_udc_cleanup); |