Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * OHCI HCD (Host Controller Driver) for USB. |
| 3 | * |
| 4 | * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> |
| 5 | * (C) Copyright 2000-2005 David Brownell |
| 6 | * (C) Copyright 2002 Hewlett-Packard Company |
| 7 | * |
| 8 | * OMAP Bus Glue |
| 9 | * |
| 10 | * Modified for OMAP by Tony Lindgren <tony@atomide.com> |
| 11 | * Based on the 2.4 OMAP OHCI driver originally done by MontaVista Software Inc. |
| 12 | * and on ohci-sa1111.c by Christopher Hoover <ch@hpl.hp.com> |
| 13 | * |
| 14 | * This file is licenced under the GPL. |
| 15 | */ |
| 16 | |
| 17 | #include <asm/hardware.h> |
| 18 | #include <asm/io.h> |
| 19 | #include <asm/mach-types.h> |
| 20 | |
| 21 | #include <asm/arch/hardware.h> |
| 22 | #include <asm/arch/mux.h> |
| 23 | #include <asm/arch/irqs.h> |
| 24 | #include <asm/arch/gpio.h> |
| 25 | #include <asm/arch/fpga.h> |
| 26 | #include <asm/arch/usb.h> |
| 27 | #include <asm/hardware/clock.h> |
| 28 | |
| 29 | |
| 30 | /* OMAP-1510 OHCI has its own MMU for DMA */ |
| 31 | #define OMAP1510_LB_MEMSIZE 32 /* Should be same as SDRAM size */ |
| 32 | #define OMAP1510_LB_CLOCK_DIV 0xfffec10c |
| 33 | #define OMAP1510_LB_MMU_CTL 0xfffec208 |
| 34 | #define OMAP1510_LB_MMU_LCK 0xfffec224 |
| 35 | #define OMAP1510_LB_MMU_LD_TLB 0xfffec228 |
| 36 | #define OMAP1510_LB_MMU_CAM_H 0xfffec22c |
| 37 | #define OMAP1510_LB_MMU_CAM_L 0xfffec230 |
| 38 | #define OMAP1510_LB_MMU_RAM_H 0xfffec234 |
| 39 | #define OMAP1510_LB_MMU_RAM_L 0xfffec238 |
| 40 | |
| 41 | |
| 42 | #ifndef CONFIG_ARCH_OMAP |
| 43 | #error "This file is OMAP bus glue. CONFIG_OMAP must be defined." |
| 44 | #endif |
| 45 | |
| 46 | #ifdef CONFIG_TPS65010 |
| 47 | #include <asm/arch/tps65010.h> |
| 48 | #else |
| 49 | |
| 50 | #define LOW 0 |
| 51 | #define HIGH 1 |
| 52 | |
| 53 | #define GPIO1 1 |
| 54 | |
| 55 | static inline int tps65010_set_gpio_out_value(unsigned gpio, unsigned value) |
| 56 | { |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | #endif |
| 61 | |
| 62 | extern int usb_disabled(void); |
| 63 | extern int ocpi_enable(void); |
| 64 | |
| 65 | static struct clk *usb_host_ck; |
| 66 | |
| 67 | static void omap_ohci_clock_power(int on) |
| 68 | { |
| 69 | if (on) { |
| 70 | clk_enable(usb_host_ck); |
| 71 | /* guesstimate for T5 == 1x 32K clock + APLL lock time */ |
| 72 | udelay(100); |
| 73 | } else { |
| 74 | clk_disable(usb_host_ck); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /* |
| 79 | * Board specific gang-switched transceiver power on/off. |
| 80 | * NOTE: OSK supplies power from DC, not battery. |
| 81 | */ |
| 82 | static int omap_ohci_transceiver_power(int on) |
| 83 | { |
| 84 | if (on) { |
| 85 | if (machine_is_omap_innovator() && cpu_is_omap1510()) |
| 86 | fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL) |
| 87 | | ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), |
| 88 | INNOVATOR_FPGA_CAM_USB_CONTROL); |
| 89 | else if (machine_is_omap_osk()) |
| 90 | tps65010_set_gpio_out_value(GPIO1, LOW); |
| 91 | } else { |
| 92 | if (machine_is_omap_innovator() && cpu_is_omap1510()) |
| 93 | fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL) |
| 94 | & ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), |
| 95 | INNOVATOR_FPGA_CAM_USB_CONTROL); |
| 96 | else if (machine_is_omap_osk()) |
| 97 | tps65010_set_gpio_out_value(GPIO1, HIGH); |
| 98 | } |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | /* |
| 104 | * OMAP-1510 specific Local Bus clock on/off |
| 105 | */ |
| 106 | static int omap_1510_local_bus_power(int on) |
| 107 | { |
| 108 | if (on) { |
| 109 | omap_writel((1 << 1) | (1 << 0), OMAP1510_LB_MMU_CTL); |
| 110 | udelay(200); |
| 111 | } else { |
| 112 | omap_writel(0, OMAP1510_LB_MMU_CTL); |
| 113 | } |
| 114 | |
| 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | /* |
| 119 | * OMAP-1510 specific Local Bus initialization |
| 120 | * NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE. |
| 121 | * See also arch/mach-omap/memory.h for __virt_to_dma() and |
| 122 | * __dma_to_virt() which need to match with the physical |
| 123 | * Local Bus address below. |
| 124 | */ |
| 125 | static int omap_1510_local_bus_init(void) |
| 126 | { |
| 127 | unsigned int tlb; |
| 128 | unsigned long lbaddr, physaddr; |
| 129 | |
| 130 | omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4, |
| 131 | OMAP1510_LB_CLOCK_DIV); |
| 132 | |
| 133 | /* Configure the Local Bus MMU table */ |
| 134 | for (tlb = 0; tlb < OMAP1510_LB_MEMSIZE; tlb++) { |
| 135 | lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET; |
| 136 | physaddr = tlb * 0x00100000 + PHYS_OFFSET; |
| 137 | omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H); |
| 138 | omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc, |
| 139 | OMAP1510_LB_MMU_CAM_L); |
| 140 | omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H); |
| 141 | omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L); |
| 142 | omap_writel(tlb << 4, OMAP1510_LB_MMU_LCK); |
| 143 | omap_writel(0x1, OMAP1510_LB_MMU_LD_TLB); |
| 144 | } |
| 145 | |
| 146 | /* Enable the walking table */ |
| 147 | omap_writel(omap_readl(OMAP1510_LB_MMU_CTL) | (1 << 3), OMAP1510_LB_MMU_CTL); |
| 148 | udelay(200); |
| 149 | |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | #ifdef CONFIG_USB_OTG |
| 154 | |
| 155 | static void start_hnp(struct ohci_hcd *ohci) |
| 156 | { |
| 157 | const unsigned port = ohci_to_hcd(ohci)->self.otg_port - 1; |
| 158 | unsigned long flags; |
| 159 | |
| 160 | otg_start_hnp(ohci->transceiver); |
| 161 | |
| 162 | local_irq_save(flags); |
| 163 | ohci->transceiver->state = OTG_STATE_A_SUSPEND; |
| 164 | writel (RH_PS_PSS, &ohci->regs->roothub.portstatus [port]); |
| 165 | OTG_CTRL_REG &= ~OTG_A_BUSREQ; |
| 166 | local_irq_restore(flags); |
| 167 | } |
| 168 | |
| 169 | #endif |
| 170 | |
| 171 | /*-------------------------------------------------------------------------*/ |
| 172 | |
| 173 | static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev) |
| 174 | { |
| 175 | struct omap_usb_config *config = pdev->dev.platform_data; |
| 176 | int need_transceiver = (config->otg != 0); |
| 177 | int ret; |
| 178 | |
| 179 | dev_dbg(&pdev->dev, "starting USB Controller\n"); |
| 180 | |
| 181 | if (config->otg) { |
| 182 | ohci_to_hcd(ohci)->self.otg_port = config->otg; |
| 183 | /* default/minimum OTG power budget: 8 mA */ |
| 184 | ohci->power_budget = 8; |
| 185 | } |
| 186 | |
| 187 | /* boards can use OTG transceivers in non-OTG modes */ |
| 188 | need_transceiver = need_transceiver |
| 189 | || machine_is_omap_h2() || machine_is_omap_h3(); |
| 190 | |
| 191 | if (cpu_is_omap16xx()) |
| 192 | ocpi_enable(); |
| 193 | |
| 194 | #ifdef CONFIG_ARCH_OMAP_OTG |
| 195 | if (need_transceiver) { |
| 196 | ohci->transceiver = otg_get_transceiver(); |
| 197 | if (ohci->transceiver) { |
| 198 | int status = otg_set_host(ohci->transceiver, |
| 199 | &ohci_to_hcd(ohci)->self); |
| 200 | dev_dbg(&pdev->dev, "init %s transceiver, status %d\n", |
| 201 | ohci->transceiver->label, status); |
| 202 | if (status) { |
| 203 | if (ohci->transceiver) |
| 204 | put_device(ohci->transceiver->dev); |
| 205 | return status; |
| 206 | } |
| 207 | } else { |
| 208 | dev_err(&pdev->dev, "can't find transceiver\n"); |
| 209 | return -ENODEV; |
| 210 | } |
| 211 | } |
| 212 | #endif |
| 213 | |
| 214 | omap_ohci_clock_power(1); |
| 215 | |
| 216 | if (cpu_is_omap1510()) { |
| 217 | omap_1510_local_bus_power(1); |
| 218 | omap_1510_local_bus_init(); |
| 219 | } |
| 220 | |
| 221 | if ((ret = ohci_init(ohci)) < 0) |
| 222 | return ret; |
| 223 | |
| 224 | /* board-specific power switching and overcurrent support */ |
| 225 | if (machine_is_omap_osk() || machine_is_omap_innovator()) { |
| 226 | u32 rh = roothub_a (ohci); |
| 227 | |
| 228 | /* power switching (ganged by default) */ |
| 229 | rh &= ~RH_A_NPS; |
| 230 | |
| 231 | /* TPS2045 switch for internal transceiver (port 1) */ |
| 232 | if (machine_is_omap_osk()) { |
| 233 | ohci->power_budget = 250; |
| 234 | |
| 235 | rh &= ~RH_A_NOCP; |
| 236 | |
| 237 | /* gpio9 for overcurrent detction */ |
| 238 | omap_cfg_reg(W8_1610_GPIO9); |
| 239 | omap_request_gpio(9); |
| 240 | omap_set_gpio_direction(9, 1 /* IN */); |
| 241 | |
| 242 | /* for paranoia's sake: disable USB.PUEN */ |
| 243 | omap_cfg_reg(W4_USB_HIGHZ); |
| 244 | } |
| 245 | ohci_writel(ohci, rh, &ohci->regs->roothub.a); |
| 246 | distrust_firmware = 0; |
| 247 | } |
| 248 | |
| 249 | /* FIXME khubd hub requests should manage power switching */ |
| 250 | omap_ohci_transceiver_power(1); |
| 251 | |
| 252 | /* board init will have already handled HMC and mux setup. |
| 253 | * any external transceiver should already be initialized |
| 254 | * too, so all configured ports use the right signaling now. |
| 255 | */ |
| 256 | |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static void omap_stop_hc(struct platform_device *pdev) |
| 261 | { |
| 262 | dev_dbg(&pdev->dev, "stopping USB Controller\n"); |
| 263 | omap_ohci_clock_power(0); |
| 264 | } |
| 265 | |
| 266 | |
| 267 | /*-------------------------------------------------------------------------*/ |
| 268 | |
| 269 | void usb_hcd_omap_remove (struct usb_hcd *, struct platform_device *); |
| 270 | |
| 271 | /* configure so an HC device and id are always provided */ |
| 272 | /* always called with process context; sleeping is OK */ |
| 273 | |
| 274 | |
| 275 | /** |
| 276 | * usb_hcd_omap_probe - initialize OMAP-based HCDs |
| 277 | * Context: !in_interrupt() |
| 278 | * |
| 279 | * Allocates basic resources for this USB host controller, and |
| 280 | * then invokes the start() method for the HCD associated with it |
| 281 | * through the hotplug entry's driver_data. |
| 282 | */ |
| 283 | int usb_hcd_omap_probe (const struct hc_driver *driver, |
| 284 | struct platform_device *pdev) |
| 285 | { |
| 286 | int retval; |
| 287 | struct usb_hcd *hcd = 0; |
| 288 | struct ohci_hcd *ohci; |
| 289 | |
| 290 | if (pdev->num_resources != 2) { |
| 291 | printk(KERN_ERR "hcd probe: invalid num_resources: %i\n", |
| 292 | pdev->num_resources); |
| 293 | return -ENODEV; |
| 294 | } |
| 295 | |
| 296 | if (pdev->resource[0].flags != IORESOURCE_MEM |
| 297 | || pdev->resource[1].flags != IORESOURCE_IRQ) { |
| 298 | printk(KERN_ERR "hcd probe: invalid resource type\n"); |
| 299 | return -ENODEV; |
| 300 | } |
| 301 | |
| 302 | usb_host_ck = clk_get(0, "usb_hhc_ck"); |
| 303 | if (IS_ERR(usb_host_ck)) |
| 304 | return PTR_ERR(usb_host_ck); |
| 305 | |
| 306 | hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); |
| 307 | if (!hcd) { |
| 308 | retval = -ENOMEM; |
| 309 | goto err0; |
| 310 | } |
| 311 | hcd->rsrc_start = pdev->resource[0].start; |
| 312 | hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; |
| 313 | |
| 314 | if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { |
| 315 | dev_dbg(&pdev->dev, "request_mem_region failed\n"); |
| 316 | retval = -EBUSY; |
| 317 | goto err1; |
| 318 | } |
| 319 | |
| 320 | hcd->regs = (void __iomem *) (int) IO_ADDRESS(hcd->rsrc_start); |
| 321 | |
| 322 | ohci = hcd_to_ohci(hcd); |
| 323 | ohci_hcd_init(ohci); |
| 324 | |
| 325 | retval = omap_start_hc(ohci, pdev); |
| 326 | if (retval < 0) |
| 327 | goto err2; |
| 328 | |
| 329 | retval = usb_add_hcd(hcd, platform_get_irq(pdev, 0), SA_INTERRUPT); |
| 330 | if (retval == 0) |
| 331 | return retval; |
| 332 | |
| 333 | omap_stop_hc(pdev); |
| 334 | err2: |
| 335 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
| 336 | err1: |
| 337 | usb_put_hcd(hcd); |
| 338 | err0: |
| 339 | clk_put(usb_host_ck); |
| 340 | return retval; |
| 341 | } |
| 342 | |
| 343 | |
| 344 | /* may be called with controller, bus, and devices active */ |
| 345 | |
| 346 | /** |
| 347 | * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs |
| 348 | * @dev: USB Host Controller being removed |
| 349 | * Context: !in_interrupt() |
| 350 | * |
| 351 | * Reverses the effect of usb_hcd_omap_probe(), first invoking |
| 352 | * the HCD's stop() method. It is always called from a thread |
| 353 | * context, normally "rmmod", "apmd", or something similar. |
| 354 | * |
| 355 | */ |
| 356 | void usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) |
| 357 | { |
| 358 | usb_remove_hcd(hcd); |
| 359 | if (machine_is_omap_osk()) |
| 360 | omap_free_gpio(9); |
| 361 | omap_stop_hc(pdev); |
| 362 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
| 363 | usb_put_hcd(hcd); |
| 364 | clk_put(usb_host_ck); |
| 365 | } |
| 366 | |
| 367 | /*-------------------------------------------------------------------------*/ |
| 368 | |
| 369 | static int __devinit |
| 370 | ohci_omap_start (struct usb_hcd *hcd) |
| 371 | { |
| 372 | struct omap_usb_config *config; |
| 373 | struct ohci_hcd *ohci = hcd_to_ohci (hcd); |
| 374 | int ret; |
| 375 | |
| 376 | config = hcd->self.controller->platform_data; |
| 377 | if (config->otg || config->rwc) |
| 378 | writel(OHCI_CTRL_RWC, &ohci->regs->control); |
| 379 | |
| 380 | if ((ret = ohci_run (ohci)) < 0) { |
| 381 | dev_err(hcd->self.controller, "can't start\n"); |
| 382 | ohci_stop (hcd); |
| 383 | return ret; |
| 384 | } |
| 385 | return 0; |
| 386 | } |
| 387 | |
| 388 | /*-------------------------------------------------------------------------*/ |
| 389 | |
| 390 | static const struct hc_driver ohci_omap_hc_driver = { |
| 391 | .description = hcd_name, |
| 392 | .product_desc = "OMAP OHCI", |
| 393 | .hcd_priv_size = sizeof(struct ohci_hcd), |
| 394 | |
| 395 | /* |
| 396 | * generic hardware linkage |
| 397 | */ |
| 398 | .irq = ohci_irq, |
| 399 | .flags = HCD_USB11 | HCD_MEMORY, |
| 400 | |
| 401 | /* |
| 402 | * basic lifecycle operations |
| 403 | */ |
| 404 | .start = ohci_omap_start, |
| 405 | .stop = ohci_stop, |
| 406 | |
| 407 | /* |
| 408 | * managing i/o requests and associated device resources |
| 409 | */ |
| 410 | .urb_enqueue = ohci_urb_enqueue, |
| 411 | .urb_dequeue = ohci_urb_dequeue, |
| 412 | .endpoint_disable = ohci_endpoint_disable, |
| 413 | |
| 414 | /* |
| 415 | * scheduling support |
| 416 | */ |
| 417 | .get_frame_number = ohci_get_frame, |
| 418 | |
| 419 | /* |
| 420 | * root hub support |
| 421 | */ |
| 422 | .hub_status_data = ohci_hub_status_data, |
| 423 | .hub_control = ohci_hub_control, |
| 424 | #ifdef CONFIG_USB_SUSPEND |
| 425 | .hub_suspend = ohci_hub_suspend, |
| 426 | .hub_resume = ohci_hub_resume, |
| 427 | #endif |
| 428 | .start_port_reset = ohci_start_port_reset, |
| 429 | }; |
| 430 | |
| 431 | /*-------------------------------------------------------------------------*/ |
| 432 | |
| 433 | static int ohci_hcd_omap_drv_probe(struct device *dev) |
| 434 | { |
| 435 | return usb_hcd_omap_probe(&ohci_omap_hc_driver, |
| 436 | to_platform_device(dev)); |
| 437 | } |
| 438 | |
| 439 | static int ohci_hcd_omap_drv_remove(struct device *dev) |
| 440 | { |
| 441 | struct platform_device *pdev = to_platform_device(dev); |
| 442 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
| 443 | struct ohci_hcd *ohci = hcd_to_ohci (hcd); |
| 444 | |
| 445 | usb_hcd_omap_remove(hcd, pdev); |
| 446 | if (ohci->transceiver) { |
| 447 | (void) otg_set_host(ohci->transceiver, 0); |
| 448 | put_device(ohci->transceiver->dev); |
| 449 | } |
| 450 | dev_set_drvdata(dev, NULL); |
| 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | /*-------------------------------------------------------------------------*/ |
| 456 | |
| 457 | #ifdef CONFIG_PM |
| 458 | |
| 459 | /* states match PCI usage, always suspending the root hub except that |
| 460 | * 4 ~= D3cold (ACPI D3) with clock off (resume sees reset). |
Pavel Machek | ba9d35f | 2005-04-18 17:39:24 -0700 | [diff] [blame] | 461 | * |
| 462 | * FIXME: above comment is not right, and code is wrong, too :-(. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | */ |
| 464 | |
Pavel Machek | ba9d35f | 2005-04-18 17:39:24 -0700 | [diff] [blame] | 465 | static int ohci_omap_suspend(struct device *dev, pm_message_t state, u32 level) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | { |
| 467 | struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev)); |
| 468 | int status = -EINVAL; |
| 469 | |
| 470 | if (level != SUSPEND_POWER_DOWN) |
| 471 | return 0; |
| 472 | if (state <= dev->power.power_state) |
| 473 | return 0; |
| 474 | |
| 475 | dev_dbg(dev, "suspend to %d\n", state); |
| 476 | down(&ohci_to_hcd(ohci)->self.root_hub->serialize); |
| 477 | status = ohci_hub_suspend(ohci_to_hcd(ohci)); |
| 478 | if (status == 0) { |
| 479 | if (state >= 4) { |
| 480 | omap_ohci_clock_power(0); |
| 481 | ohci_to_hcd(ohci)->self.root_hub->state = |
| 482 | USB_STATE_SUSPENDED; |
| 483 | state = 4; |
| 484 | } |
| 485 | ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; |
| 486 | dev->power.power_state = state; |
| 487 | } |
| 488 | up(&ohci_to_hcd(ohci)->self.root_hub->serialize); |
| 489 | return status; |
| 490 | } |
| 491 | |
| 492 | static int ohci_omap_resume(struct device *dev, u32 level) |
| 493 | { |
| 494 | struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev)); |
| 495 | int status = 0; |
| 496 | |
| 497 | if (level != RESUME_POWER_ON) |
| 498 | return 0; |
| 499 | |
| 500 | switch (dev->power.power_state) { |
| 501 | case 0: |
| 502 | break; |
| 503 | case 4: |
| 504 | if (time_before(jiffies, ohci->next_statechange)) |
| 505 | msleep(5); |
| 506 | ohci->next_statechange = jiffies; |
| 507 | omap_ohci_clock_power(1); |
| 508 | /* FALLTHROUGH */ |
| 509 | default: |
| 510 | dev_dbg(dev, "resume from %d\n", dev->power.power_state); |
| 511 | #ifdef CONFIG_USB_SUSPEND |
| 512 | /* get extra cleanup even if remote wakeup isn't in use */ |
| 513 | status = usb_resume_device(ohci_to_hcd(ohci)->self.root_hub); |
| 514 | #else |
| 515 | down(&ohci_to_hcd(ohci)->self.root_hub->serialize); |
| 516 | status = ohci_hub_resume(ohci_to_hcd(ohci)); |
| 517 | up(&ohci_to_hcd(ohci)->self.root_hub->serialize); |
| 518 | #endif |
| 519 | if (status == 0) |
| 520 | dev->power.power_state = 0; |
| 521 | break; |
| 522 | } |
| 523 | return status; |
| 524 | } |
| 525 | |
| 526 | #endif |
| 527 | |
| 528 | /*-------------------------------------------------------------------------*/ |
| 529 | |
| 530 | /* |
| 531 | * Driver definition to register with the OMAP bus |
| 532 | */ |
| 533 | static struct device_driver ohci_hcd_omap_driver = { |
| 534 | .name = "ohci", |
| 535 | .bus = &platform_bus_type, |
| 536 | .probe = ohci_hcd_omap_drv_probe, |
| 537 | .remove = ohci_hcd_omap_drv_remove, |
| 538 | #ifdef CONFIG_PM |
| 539 | .suspend = ohci_omap_suspend, |
| 540 | .resume = ohci_omap_resume, |
| 541 | #endif |
| 542 | }; |
| 543 | |
| 544 | static int __init ohci_hcd_omap_init (void) |
| 545 | { |
| 546 | printk (KERN_DEBUG "%s: " DRIVER_INFO " (OMAP)\n", hcd_name); |
| 547 | if (usb_disabled()) |
| 548 | return -ENODEV; |
| 549 | |
| 550 | pr_debug("%s: block sizes: ed %Zd td %Zd\n", hcd_name, |
| 551 | sizeof (struct ed), sizeof (struct td)); |
| 552 | |
| 553 | return driver_register(&ohci_hcd_omap_driver); |
| 554 | } |
| 555 | |
| 556 | static void __exit ohci_hcd_omap_cleanup (void) |
| 557 | { |
| 558 | driver_unregister(&ohci_hcd_omap_driver); |
| 559 | } |
| 560 | |
| 561 | module_init (ohci_hcd_omap_init); |
| 562 | module_exit (ohci_hcd_omap_cleanup); |