]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * OHCI HCD (Host Controller Driver) for USB. | |
3 | * | |
4 | * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> | |
5 | * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> | |
6 | * (C) Copyright 2002 Hewlett-Packard Company | |
7 | * | |
8 | * Bus Glue for pxa27x | |
9 | * | |
10 | * Written by Christopher Hoover <ch@hpl.hp.com> | |
11 | * Based on fragments of previous driver by Russell King et al. | |
12 | * | |
13 | * Modified for LH7A404 from ohci-sa1111.c | |
14 | * by Durgesh Pattamatta <pattamattad@sharpsec.com> | |
15 | * | |
16 | * Modified for pxa27x from ohci-lh7a404.c | |
17 | * by Nick Bane <nick@cecomputing.co.uk> 26-8-2004 | |
18 | * | |
19 | * This file is licenced under the GPL. | |
20 | */ | |
21 | ||
22 | #include <linux/device.h> | |
4e57b681 | 23 | #include <linux/signal.h> |
d052d1be | 24 | #include <linux/platform_device.h> |
a8bcf410 | 25 | #include <linux/clk.h> |
a09e64fb | 26 | #include <mach/ohci.h> |
1da177e4 | 27 | |
596050bc EM |
28 | /* |
29 | * UHC: USB Host Controller (OHCI-like) register definitions | |
30 | */ | |
0c392ed9 EM |
31 | #define UHCREV (0x0000) /* UHC HCI Spec Revision */ |
32 | #define UHCHCON (0x0004) /* UHC Host Control Register */ | |
33 | #define UHCCOMS (0x0008) /* UHC Command Status Register */ | |
34 | #define UHCINTS (0x000C) /* UHC Interrupt Status Register */ | |
35 | #define UHCINTE (0x0010) /* UHC Interrupt Enable */ | |
36 | #define UHCINTD (0x0014) /* UHC Interrupt Disable */ | |
37 | #define UHCHCCA (0x0018) /* UHC Host Controller Comm. Area */ | |
38 | #define UHCPCED (0x001C) /* UHC Period Current Endpt Descr */ | |
39 | #define UHCCHED (0x0020) /* UHC Control Head Endpt Descr */ | |
40 | #define UHCCCED (0x0024) /* UHC Control Current Endpt Descr */ | |
41 | #define UHCBHED (0x0028) /* UHC Bulk Head Endpt Descr */ | |
42 | #define UHCBCED (0x002C) /* UHC Bulk Current Endpt Descr */ | |
43 | #define UHCDHEAD (0x0030) /* UHC Done Head */ | |
44 | #define UHCFMI (0x0034) /* UHC Frame Interval */ | |
45 | #define UHCFMR (0x0038) /* UHC Frame Remaining */ | |
46 | #define UHCFMN (0x003C) /* UHC Frame Number */ | |
47 | #define UHCPERS (0x0040) /* UHC Periodic Start */ | |
48 | #define UHCLS (0x0044) /* UHC Low Speed Threshold */ | |
49 | ||
50 | #define UHCRHDA (0x0048) /* UHC Root Hub Descriptor A */ | |
596050bc EM |
51 | #define UHCRHDA_NOCP (1 << 12) /* No over current protection */ |
52 | #define UHCRHDA_OCPM (1 << 11) /* Over Current Protection Mode */ | |
53 | #define UHCRHDA_POTPGT(x) \ | |
54 | (((x) & 0xff) << 24) /* Power On To Power Good Time */ | |
55 | ||
0c392ed9 EM |
56 | #define UHCRHDB (0x004C) /* UHC Root Hub Descriptor B */ |
57 | #define UHCRHS (0x0050) /* UHC Root Hub Status */ | |
58 | #define UHCRHPS1 (0x0054) /* UHC Root Hub Port 1 Status */ | |
59 | #define UHCRHPS2 (0x0058) /* UHC Root Hub Port 2 Status */ | |
60 | #define UHCRHPS3 (0x005C) /* UHC Root Hub Port 3 Status */ | |
596050bc | 61 | |
0c392ed9 | 62 | #define UHCSTAT (0x0060) /* UHC Status Register */ |
596050bc EM |
63 | #define UHCSTAT_UPS3 (1 << 16) /* USB Power Sense Port3 */ |
64 | #define UHCSTAT_SBMAI (1 << 15) /* System Bus Master Abort Interrupt*/ | |
65 | #define UHCSTAT_SBTAI (1 << 14) /* System Bus Target Abort Interrupt*/ | |
66 | #define UHCSTAT_UPRI (1 << 13) /* USB Port Resume Interrupt */ | |
67 | #define UHCSTAT_UPS2 (1 << 12) /* USB Power Sense Port 2 */ | |
68 | #define UHCSTAT_UPS1 (1 << 11) /* USB Power Sense Port 1 */ | |
69 | #define UHCSTAT_HTA (1 << 10) /* HCI Target Abort */ | |
70 | #define UHCSTAT_HBA (1 << 8) /* HCI Buffer Active */ | |
71 | #define UHCSTAT_RWUE (1 << 7) /* HCI Remote Wake Up Event */ | |
72 | ||
0c392ed9 | 73 | #define UHCHR (0x0064) /* UHC Reset Register */ |
596050bc EM |
74 | #define UHCHR_SSEP3 (1 << 11) /* Sleep Standby Enable for Port3 */ |
75 | #define UHCHR_SSEP2 (1 << 10) /* Sleep Standby Enable for Port2 */ | |
76 | #define UHCHR_SSEP1 (1 << 9) /* Sleep Standby Enable for Port1 */ | |
77 | #define UHCHR_PCPL (1 << 7) /* Power control polarity low */ | |
78 | #define UHCHR_PSPL (1 << 6) /* Power sense polarity low */ | |
79 | #define UHCHR_SSE (1 << 5) /* Sleep Standby Enable */ | |
80 | #define UHCHR_UIT (1 << 4) /* USB Interrupt Test */ | |
81 | #define UHCHR_SSDC (1 << 3) /* Simulation Scale Down Clock */ | |
82 | #define UHCHR_CGR (1 << 2) /* Clock Generation Reset */ | |
83 | #define UHCHR_FHR (1 << 1) /* Force Host Controller Reset */ | |
84 | #define UHCHR_FSBIR (1 << 0) /* Force System Bus Iface Reset */ | |
85 | ||
0c392ed9 | 86 | #define UHCHIE (0x0068) /* UHC Interrupt Enable Register*/ |
596050bc EM |
87 | #define UHCHIE_UPS3IE (1 << 14) /* Power Sense Port3 IntEn */ |
88 | #define UHCHIE_UPRIE (1 << 13) /* Port Resume IntEn */ | |
89 | #define UHCHIE_UPS2IE (1 << 12) /* Power Sense Port2 IntEn */ | |
90 | #define UHCHIE_UPS1IE (1 << 11) /* Power Sense Port1 IntEn */ | |
91 | #define UHCHIE_TAIE (1 << 10) /* HCI Interface Transfer Abort | |
92 | Interrupt Enable*/ | |
93 | #define UHCHIE_HBAIE (1 << 8) /* HCI Buffer Active IntEn */ | |
94 | #define UHCHIE_RWIE (1 << 7) /* Remote Wake-up IntEn */ | |
95 | ||
0c392ed9 | 96 | #define UHCHIT (0x006C) /* UHC Interrupt Test register */ |
596050bc | 97 | |
1da177e4 LT |
98 | #define PXA_UHC_MAX_PORTNUM 3 |
99 | ||
0c392ed9 EM |
100 | struct pxa27x_ohci { |
101 | /* must be 1st member here for hcd_to_ohci() to work */ | |
102 | struct ohci_hcd ohci; | |
1da177e4 | 103 | |
0c392ed9 EM |
104 | struct device *dev; |
105 | struct clk *clk; | |
106 | void __iomem *mmio_base; | |
107 | }; | |
108 | ||
109 | #define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)hcd_to_ohci(hcd) | |
a8bcf410 | 110 | |
1da177e4 LT |
111 | /* |
112 | PMM_NPS_MODE -- PMM Non-power switching mode | |
113 | Ports are powered continuously. | |
114 | ||
115 | PMM_GLOBAL_MODE -- PMM global switching mode | |
116 | All ports are powered at the same time. | |
117 | ||
118 | PMM_PERPORT_MODE -- PMM per port switching mode | |
119 | Ports are powered individually. | |
120 | */ | |
0c392ed9 | 121 | static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) |
1da177e4 | 122 | { |
0c392ed9 EM |
123 | uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); |
124 | uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB); | |
125 | ||
126 | switch (mode) { | |
1da177e4 | 127 | case PMM_NPS_MODE: |
0c392ed9 | 128 | uhcrhda |= RH_A_NPS; |
dd9048af | 129 | break; |
1da177e4 | 130 | case PMM_GLOBAL_MODE: |
0c392ed9 | 131 | uhcrhda &= ~(RH_A_NPS & RH_A_PSM); |
1da177e4 LT |
132 | break; |
133 | case PMM_PERPORT_MODE: | |
0c392ed9 EM |
134 | uhcrhda &= ~(RH_A_NPS); |
135 | uhcrhda |= RH_A_PSM; | |
1da177e4 LT |
136 | |
137 | /* Set port power control mask bits, only 3 ports. */ | |
0c392ed9 | 138 | uhcrhdb |= (0x7<<17); |
1da177e4 LT |
139 | break; |
140 | default: | |
141 | printk( KERN_ERR | |
dd9048af | 142 | "Invalid mode %d, set to non-power switch mode.\n", |
1da177e4 LT |
143 | mode ); |
144 | ||
0c392ed9 | 145 | uhcrhda |= RH_A_NPS; |
1da177e4 LT |
146 | } |
147 | ||
0c392ed9 EM |
148 | __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); |
149 | __raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB); | |
1da177e4 LT |
150 | return 0; |
151 | } | |
152 | ||
1da177e4 LT |
153 | extern int usb_disabled(void); |
154 | ||
155 | /*-------------------------------------------------------------------------*/ | |
156 | ||
0c392ed9 EM |
157 | static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, |
158 | struct pxaohci_platform_data *inf) | |
097b5334 | 159 | { |
0c392ed9 EM |
160 | uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); |
161 | uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); | |
097b5334 EM |
162 | |
163 | if (inf->flags & ENABLE_PORT1) | |
164 | uhchr &= ~UHCHR_SSEP1; | |
165 | ||
166 | if (inf->flags & ENABLE_PORT2) | |
167 | uhchr &= ~UHCHR_SSEP2; | |
168 | ||
169 | if (inf->flags & ENABLE_PORT3) | |
170 | uhchr &= ~UHCHR_SSEP3; | |
171 | ||
172 | if (inf->flags & POWER_CONTROL_LOW) | |
173 | uhchr |= UHCHR_PCPL; | |
174 | ||
175 | if (inf->flags & POWER_SENSE_LOW) | |
176 | uhchr |= UHCHR_PSPL; | |
177 | ||
178 | if (inf->flags & NO_OC_PROTECTION) | |
179 | uhcrhda |= UHCRHDA_NOCP; | |
7b4361f0 AB |
180 | else |
181 | uhcrhda &= ~UHCRHDA_NOCP; | |
097b5334 EM |
182 | |
183 | if (inf->flags & OC_MODE_PERPORT) | |
184 | uhcrhda |= UHCRHDA_OCPM; | |
7b4361f0 AB |
185 | else |
186 | uhcrhda &= ~UHCRHDA_OCPM; | |
097b5334 EM |
187 | |
188 | if (inf->power_on_delay) { | |
189 | uhcrhda &= ~UHCRHDA_POTPGT(0xff); | |
190 | uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2); | |
191 | } | |
192 | ||
0c392ed9 EM |
193 | __raw_writel(uhchr, ohci->mmio_base + UHCHR); |
194 | __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); | |
195 | } | |
196 | ||
197 | static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci) | |
198 | { | |
199 | uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); | |
200 | ||
201 | __raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR); | |
202 | udelay(11); | |
203 | __raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR); | |
097b5334 EM |
204 | } |
205 | ||
0cb0b0d3 EM |
206 | #ifdef CONFIG_CPU_PXA27x |
207 | extern void pxa27x_clear_otgph(void); | |
208 | #else | |
209 | #define pxa27x_clear_otgph() do {} while (0) | |
210 | #endif | |
211 | ||
0c392ed9 | 212 | static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) |
1da177e4 | 213 | { |
81f280e2 RP |
214 | int retval = 0; |
215 | struct pxaohci_platform_data *inf; | |
0c392ed9 | 216 | uint32_t uhchr; |
81f280e2 RP |
217 | |
218 | inf = dev->platform_data; | |
219 | ||
0c392ed9 | 220 | clk_enable(ohci->clk); |
1da177e4 | 221 | |
0c392ed9 | 222 | pxa27x_reset_hc(ohci); |
1da177e4 | 223 | |
0c392ed9 EM |
224 | uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR; |
225 | __raw_writel(uhchr, ohci->mmio_base + UHCHR); | |
226 | ||
227 | while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR) | |
1da177e4 LT |
228 | cpu_relax(); |
229 | ||
0c392ed9 | 230 | pxa27x_setup_hc(ohci, inf); |
097b5334 | 231 | |
81f280e2 RP |
232 | if (inf->init) |
233 | retval = inf->init(dev); | |
155faf5e | 234 | |
81f280e2 RP |
235 | if (retval < 0) |
236 | return retval; | |
1da177e4 | 237 | |
0c392ed9 EM |
238 | uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE; |
239 | __raw_writel(uhchr, ohci->mmio_base + UHCHR); | |
240 | __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE); | |
155faf5e DB |
241 | |
242 | /* Clear any OTG Pin Hold */ | |
0cb0b0d3 | 243 | pxa27x_clear_otgph(); |
81f280e2 | 244 | return 0; |
1da177e4 LT |
245 | } |
246 | ||
0c392ed9 | 247 | static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) |
1da177e4 | 248 | { |
81f280e2 | 249 | struct pxaohci_platform_data *inf; |
0c392ed9 | 250 | uint32_t uhccoms; |
81f280e2 RP |
251 | |
252 | inf = dev->platform_data; | |
253 | ||
254 | if (inf->exit) | |
255 | inf->exit(dev); | |
256 | ||
0c392ed9 | 257 | pxa27x_reset_hc(ohci); |
1da177e4 | 258 | |
0c392ed9 EM |
259 | /* Host Controller Reset */ |
260 | uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01; | |
261 | __raw_writel(uhccoms, ohci->mmio_base + UHCCOMS); | |
1da177e4 LT |
262 | udelay(10); |
263 | ||
0c392ed9 | 264 | clk_disable(ohci->clk); |
1da177e4 LT |
265 | } |
266 | ||
267 | ||
268 | /*-------------------------------------------------------------------------*/ | |
269 | ||
270 | /* configure so an HC device and id are always provided */ | |
271 | /* always called with process context; sleeping is OK */ | |
272 | ||
273 | ||
274 | /** | |
275 | * usb_hcd_pxa27x_probe - initialize pxa27x-based HCDs | |
276 | * Context: !in_interrupt() | |
277 | * | |
278 | * Allocates basic resources for this USB host controller, and | |
279 | * then invokes the start() method for the HCD associated with it | |
280 | * through the hotplug entry's driver_data. | |
281 | * | |
282 | */ | |
81f280e2 | 283 | int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device *pdev) |
1da177e4 | 284 | { |
84bab739 | 285 | int retval, irq; |
1da177e4 | 286 | struct usb_hcd *hcd; |
81f280e2 | 287 | struct pxaohci_platform_data *inf; |
0c392ed9 | 288 | struct pxa27x_ohci *ohci; |
84bab739 | 289 | struct resource *r; |
0c392ed9 | 290 | struct clk *usb_clk; |
81f280e2 RP |
291 | |
292 | inf = pdev->dev.platform_data; | |
1da177e4 | 293 | |
81f280e2 RP |
294 | if (!inf) |
295 | return -ENODEV; | |
296 | ||
84bab739 EM |
297 | irq = platform_get_irq(pdev, 0); |
298 | if (irq < 0) { | |
299 | pr_err("no resource of IORESOURCE_IRQ"); | |
300 | return -ENXIO; | |
1da177e4 LT |
301 | } |
302 | ||
e0d8b13a | 303 | usb_clk = clk_get(&pdev->dev, NULL); |
a8bcf410 | 304 | if (IS_ERR(usb_clk)) |
305 | return PTR_ERR(usb_clk); | |
306 | ||
81f280e2 | 307 | hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x"); |
1da177e4 LT |
308 | if (!hcd) |
309 | return -ENOMEM; | |
84bab739 EM |
310 | |
311 | r = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
312 | if (!r) { | |
313 | pr_err("no resource of IORESOURCE_MEM"); | |
314 | retval = -ENXIO; | |
315 | goto err1; | |
316 | } | |
317 | ||
318 | hcd->rsrc_start = r->start; | |
319 | hcd->rsrc_len = resource_size(r); | |
1da177e4 LT |
320 | |
321 | if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { | |
322 | pr_debug("request_mem_region failed"); | |
323 | retval = -EBUSY; | |
324 | goto err1; | |
325 | } | |
326 | ||
327 | hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); | |
328 | if (!hcd->regs) { | |
329 | pr_debug("ioremap failed"); | |
330 | retval = -ENOMEM; | |
331 | goto err2; | |
332 | } | |
333 | ||
0c392ed9 EM |
334 | /* initialize "struct pxa27x_ohci" */ |
335 | ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd); | |
336 | ohci->dev = &pdev->dev; | |
337 | ohci->clk = usb_clk; | |
338 | ohci->mmio_base = (void __iomem *)hcd->regs; | |
339 | ||
340 | if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) { | |
81f280e2 RP |
341 | pr_debug("pxa27x_start_hc failed"); |
342 | goto err3; | |
343 | } | |
1da177e4 LT |
344 | |
345 | /* Select Power Management Mode */ | |
0c392ed9 | 346 | pxa27x_ohci_select_pmm(ohci, inf->port_mode); |
1da177e4 | 347 | |
0c27c5d5 RP |
348 | if (inf->power_budget) |
349 | hcd->power_budget = inf->power_budget; | |
350 | ||
1da177e4 LT |
351 | ohci_hcd_init(hcd_to_ohci(hcd)); |
352 | ||
84bab739 | 353 | retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); |
1da177e4 LT |
354 | if (retval == 0) |
355 | return retval; | |
356 | ||
0c392ed9 | 357 | pxa27x_stop_hc(ohci, &pdev->dev); |
81f280e2 | 358 | err3: |
1da177e4 LT |
359 | iounmap(hcd->regs); |
360 | err2: | |
361 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); | |
362 | err1: | |
363 | usb_put_hcd(hcd); | |
a8bcf410 | 364 | clk_put(usb_clk); |
1da177e4 LT |
365 | return retval; |
366 | } | |
367 | ||
368 | ||
369 | /* may be called without controller electrically present */ | |
370 | /* may be called with controller, bus, and devices active */ | |
371 | ||
372 | /** | |
373 | * usb_hcd_pxa27x_remove - shutdown processing for pxa27x-based HCDs | |
374 | * @dev: USB Host Controller being removed | |
375 | * Context: !in_interrupt() | |
376 | * | |
377 | * Reverses the effect of usb_hcd_pxa27x_probe(), first invoking | |
378 | * the HCD's stop() method. It is always called from a thread | |
379 | * context, normally "rmmod", "apmd", or something similar. | |
380 | * | |
381 | */ | |
81f280e2 | 382 | void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) |
1da177e4 | 383 | { |
0c392ed9 EM |
384 | struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); |
385 | ||
1da177e4 | 386 | usb_remove_hcd(hcd); |
0c392ed9 | 387 | pxa27x_stop_hc(ohci, &pdev->dev); |
1da177e4 LT |
388 | iounmap(hcd->regs); |
389 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); | |
390 | usb_put_hcd(hcd); | |
0c392ed9 | 391 | clk_put(ohci->clk); |
1da177e4 LT |
392 | } |
393 | ||
394 | /*-------------------------------------------------------------------------*/ | |
395 | ||
396 | static int __devinit | |
397 | ohci_pxa27x_start (struct usb_hcd *hcd) | |
398 | { | |
399 | struct ohci_hcd *ohci = hcd_to_ohci (hcd); | |
400 | int ret; | |
401 | ||
402 | ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci); | |
403 | ||
fdd13b36 DB |
404 | /* The value of NDP in roothub_a is incorrect on this hardware */ |
405 | ohci->num_ports = 3; | |
406 | ||
1da177e4 LT |
407 | if ((ret = ohci_init(ohci)) < 0) |
408 | return ret; | |
409 | ||
410 | if ((ret = ohci_run (ohci)) < 0) { | |
411 | err ("can't start %s", hcd->self.bus_name); | |
412 | ohci_stop (hcd); | |
413 | return ret; | |
414 | } | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | /*-------------------------------------------------------------------------*/ | |
420 | ||
421 | static const struct hc_driver ohci_pxa27x_hc_driver = { | |
422 | .description = hcd_name, | |
423 | .product_desc = "PXA27x OHCI", | |
0c392ed9 | 424 | .hcd_priv_size = sizeof(struct pxa27x_ohci), |
1da177e4 LT |
425 | |
426 | /* | |
427 | * generic hardware linkage | |
428 | */ | |
429 | .irq = ohci_irq, | |
430 | .flags = HCD_USB11 | HCD_MEMORY, | |
431 | ||
432 | /* | |
433 | * basic lifecycle operations | |
434 | */ | |
435 | .start = ohci_pxa27x_start, | |
436 | .stop = ohci_stop, | |
dd9048af | 437 | .shutdown = ohci_shutdown, |
1da177e4 LT |
438 | |
439 | /* | |
440 | * managing i/o requests and associated device resources | |
441 | */ | |
442 | .urb_enqueue = ohci_urb_enqueue, | |
443 | .urb_dequeue = ohci_urb_dequeue, | |
444 | .endpoint_disable = ohci_endpoint_disable, | |
445 | ||
446 | /* | |
447 | * scheduling support | |
448 | */ | |
449 | .get_frame_number = ohci_get_frame, | |
450 | ||
451 | /* | |
452 | * root hub support | |
453 | */ | |
454 | .hub_status_data = ohci_hub_status_data, | |
455 | .hub_control = ohci_hub_control, | |
8ad7fe16 | 456 | #ifdef CONFIG_PM |
0c0382e3 AS |
457 | .bus_suspend = ohci_bus_suspend, |
458 | .bus_resume = ohci_bus_resume, | |
1da177e4 | 459 | #endif |
9293677a | 460 | .start_port_reset = ohci_start_port_reset, |
1da177e4 LT |
461 | }; |
462 | ||
463 | /*-------------------------------------------------------------------------*/ | |
464 | ||
3ae5eaec | 465 | static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev) |
1da177e4 | 466 | { |
1da177e4 LT |
467 | pr_debug ("In ohci_hcd_pxa27x_drv_probe"); |
468 | ||
469 | if (usb_disabled()) | |
470 | return -ENODEV; | |
471 | ||
81f280e2 | 472 | return usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev); |
1da177e4 LT |
473 | } |
474 | ||
3ae5eaec | 475 | static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev) |
1da177e4 | 476 | { |
3ae5eaec | 477 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
1da177e4 LT |
478 | |
479 | usb_hcd_pxa27x_remove(hcd, pdev); | |
a5e36d20 | 480 | platform_set_drvdata(pdev, NULL); |
1da177e4 LT |
481 | return 0; |
482 | } | |
483 | ||
b7f3f59b MR |
484 | #ifdef CONFIG_PM |
485 | static int ohci_hcd_pxa27x_drv_suspend(struct device *dev) | |
1da177e4 | 486 | { |
b7f3f59b | 487 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
0c392ed9 | 488 | struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); |
2e1dcc16 | 489 | |
0c392ed9 | 490 | if (time_before(jiffies, ohci->ohci.next_statechange)) |
2e1dcc16 | 491 | msleep(5); |
0c392ed9 | 492 | ohci->ohci.next_statechange = jiffies; |
2e1dcc16 | 493 | |
b7f3f59b | 494 | pxa27x_stop_hc(ohci, dev); |
a5e36d20 | 495 | hcd->state = HC_STATE_SUSPENDED; |
1da177e4 LT |
496 | |
497 | return 0; | |
498 | } | |
499 | ||
b7f3f59b | 500 | static int ohci_hcd_pxa27x_drv_resume(struct device *dev) |
1da177e4 | 501 | { |
b7f3f59b | 502 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
0c392ed9 | 503 | struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); |
a75d048e | 504 | struct pxaohci_platform_data *inf = dev->platform_data; |
2e1dcc16 RP |
505 | int status; |
506 | ||
0c392ed9 | 507 | if (time_before(jiffies, ohci->ohci.next_statechange)) |
2e1dcc16 | 508 | msleep(5); |
0c392ed9 | 509 | ohci->ohci.next_statechange = jiffies; |
2e1dcc16 | 510 | |
b7f3f59b | 511 | if ((status = pxa27x_start_hc(ohci, dev)) < 0) |
2e1dcc16 RP |
512 | return status; |
513 | ||
a75d048e AB |
514 | /* Select Power Management Mode */ |
515 | pxa27x_ohci_select_pmm(ohci, inf->port_mode); | |
516 | ||
43bbb7e0 | 517 | ohci_finish_controller_resume(hcd); |
1da177e4 LT |
518 | return 0; |
519 | } | |
b7f3f59b | 520 | |
47145210 | 521 | static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = { |
b7f3f59b MR |
522 | .suspend = ohci_hcd_pxa27x_drv_suspend, |
523 | .resume = ohci_hcd_pxa27x_drv_resume, | |
524 | }; | |
2e1dcc16 | 525 | #endif |
1da177e4 | 526 | |
f4fce61d KS |
527 | /* work with hotplug and coldplug */ |
528 | MODULE_ALIAS("platform:pxa27x-ohci"); | |
1da177e4 | 529 | |
3ae5eaec | 530 | static struct platform_driver ohci_hcd_pxa27x_driver = { |
1da177e4 LT |
531 | .probe = ohci_hcd_pxa27x_drv_probe, |
532 | .remove = ohci_hcd_pxa27x_drv_remove, | |
dd9048af | 533 | .shutdown = usb_hcd_platform_shutdown, |
3ae5eaec RK |
534 | .driver = { |
535 | .name = "pxa27x-ohci", | |
f4fce61d | 536 | .owner = THIS_MODULE, |
b7f3f59b MR |
537 | #ifdef CONFIG_PM |
538 | .pm = &ohci_hcd_pxa27x_pm_ops, | |
539 | #endif | |
3ae5eaec | 540 | }, |
1da177e4 LT |
541 | }; |
542 |