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Commit | Line | Data |
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f1407d5c KM |
1 | /* |
2 | * Renesas USB driver | |
3 | * | |
4 | * Copyright (C) 2011 Renesas Solutions Corp. | |
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program; if not, write to the Free Software | |
14 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
15 | * | |
16 | */ | |
148e1134 | 17 | #include <linux/err.h> |
8ecef00f | 18 | #include <linux/gpio.h> |
f1407d5c KM |
19 | #include <linux/io.h> |
20 | #include <linux/module.h> | |
b854100e YS |
21 | #include <linux/of_device.h> |
22 | #include <linux/of_gpio.h> | |
f1407d5c KM |
23 | #include <linux/pm_runtime.h> |
24 | #include <linux/slab.h> | |
25 | #include <linux/sysfs.h> | |
cc502bb7 | 26 | #include "common.h" |
8ecef00f | 27 | #include "rcar2.h" |
f1407d5c | 28 | |
233f519d KM |
29 | /* |
30 | * image of renesas_usbhs | |
31 | * | |
32 | * ex) gadget case | |
33 | ||
34 | * mod.c | |
35 | * mod_gadget.c | |
36 | * mod_host.c pipe.c fifo.c | |
37 | * | |
38 | * +-------+ +-----------+ | |
39 | * | pipe0 |------>| fifo pio | | |
40 | * +------------+ +-------+ +-----------+ | |
41 | * | mod_gadget |=====> | pipe1 |--+ | |
42 | * +------------+ +-------+ | +-----------+ | |
43 | * | pipe2 | | +-| fifo dma0 | | |
44 | * +------------+ +-------+ | | +-----------+ | |
45 | * | mod_host | | pipe3 |<-|--+ | |
46 | * +------------+ +-------+ | +-----------+ | |
47 | * | .... | +--->| fifo dma1 | | |
48 | * | .... | +-----------+ | |
49 | */ | |
50 | ||
51 | ||
b002ff6e KM |
52 | #define USBHSF_RUNTIME_PWCTRL (1 << 0) |
53 | ||
54 | /* status */ | |
55 | #define usbhsc_flags_init(p) do {(p)->flags = 0; } while (0) | |
56 | #define usbhsc_flags_set(p, b) ((p)->flags |= (b)) | |
57 | #define usbhsc_flags_clr(p, b) ((p)->flags &= ~(b)) | |
58 | #define usbhsc_flags_has(p, b) ((p)->flags & (b)) | |
59 | ||
f1407d5c KM |
60 | /* |
61 | * platform call back | |
62 | * | |
63 | * renesas usb support platform callback function. | |
64 | * Below macro call it. | |
65 | * if platform doesn't have callback, it return 0 (no error) | |
66 | */ | |
67 | #define usbhs_platform_call(priv, func, args...)\ | |
68 | (!(priv) ? -ENODEV : \ | |
48298206 KM |
69 | !((priv)->pfunc.func) ? 0 : \ |
70 | (priv)->pfunc.func(args)) | |
f1407d5c KM |
71 | |
72 | /* | |
73 | * common functions | |
74 | */ | |
75 | u16 usbhs_read(struct usbhs_priv *priv, u32 reg) | |
76 | { | |
77 | return ioread16(priv->base + reg); | |
78 | } | |
79 | ||
80 | void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data) | |
81 | { | |
82 | iowrite16(data, priv->base + reg); | |
83 | } | |
84 | ||
85 | void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data) | |
86 | { | |
87 | u16 val = usbhs_read(priv, reg); | |
88 | ||
89 | val &= ~mask; | |
90 | val |= data & mask; | |
91 | ||
92 | usbhs_write(priv, reg, val); | |
93 | } | |
94 | ||
206dcc2c KM |
95 | struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev) |
96 | { | |
97 | return dev_get_drvdata(&pdev->dev); | |
98 | } | |
99 | ||
f1407d5c KM |
100 | /* |
101 | * syscfg functions | |
102 | */ | |
76190152 | 103 | static void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable) |
f1407d5c KM |
104 | { |
105 | usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0); | |
106 | } | |
107 | ||
f1407d5c KM |
108 | void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable) |
109 | { | |
3244a7b4 KM |
110 | u16 mask = DCFM | DRPD | DPRPU | HSE | USBE; |
111 | u16 val = DCFM | DRPD | HSE | USBE; | |
f427eb64 KM |
112 | int has_otg = usbhs_get_dparam(priv, has_otg); |
113 | ||
114 | if (has_otg) | |
115 | usbhs_bset(priv, DVSTCTR, (EXTLP | PWEN), (EXTLP | PWEN)); | |
f1407d5c KM |
116 | |
117 | /* | |
118 | * if enable | |
119 | * | |
120 | * - select Host mode | |
121 | * - D+ Line/D- Line Pull-down | |
122 | */ | |
123 | usbhs_bset(priv, SYSCFG, mask, enable ? val : 0); | |
124 | } | |
125 | ||
126 | void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable) | |
127 | { | |
3244a7b4 | 128 | u16 mask = DCFM | DRPD | DPRPU | HSE | USBE; |
04a5def3 | 129 | u16 val = HSE | USBE; |
f1407d5c KM |
130 | |
131 | /* | |
132 | * if enable | |
133 | * | |
134 | * - select Function mode | |
04a5def3 TK |
135 | * - D+ Line Pull-up is disabled |
136 | * When D+ Line Pull-up is enabled, | |
137 | * calling usbhs_sys_function_pullup(,1) | |
f1407d5c KM |
138 | */ |
139 | usbhs_bset(priv, SYSCFG, mask, enable ? val : 0); | |
140 | } | |
141 | ||
4cd2f599 KM |
142 | void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable) |
143 | { | |
144 | usbhs_bset(priv, SYSCFG, DPRPU, enable ? DPRPU : 0); | |
145 | } | |
146 | ||
dfbb7f4f KM |
147 | void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode) |
148 | { | |
149 | usbhs_write(priv, TESTMODE, mode); | |
150 | } | |
151 | ||
f1407d5c KM |
152 | /* |
153 | * frame functions | |
154 | */ | |
155 | int usbhs_frame_get_num(struct usbhs_priv *priv) | |
156 | { | |
157 | return usbhs_read(priv, FRMNUM) & FRNM_MASK; | |
158 | } | |
159 | ||
ef8bedb9 KM |
160 | /* |
161 | * usb request functions | |
162 | */ | |
163 | void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req) | |
164 | { | |
165 | u16 val; | |
166 | ||
167 | val = usbhs_read(priv, USBREQ); | |
168 | req->bRequest = (val >> 8) & 0xFF; | |
169 | req->bRequestType = (val >> 0) & 0xFF; | |
170 | ||
171 | req->wValue = usbhs_read(priv, USBVAL); | |
172 | req->wIndex = usbhs_read(priv, USBINDX); | |
173 | req->wLength = usbhs_read(priv, USBLENG); | |
174 | } | |
175 | ||
176 | void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req) | |
177 | { | |
178 | usbhs_write(priv, USBREQ, (req->bRequest << 8) | req->bRequestType); | |
179 | usbhs_write(priv, USBVAL, req->wValue); | |
180 | usbhs_write(priv, USBINDX, req->wIndex); | |
181 | usbhs_write(priv, USBLENG, req->wLength); | |
182 | ||
183 | usbhs_bset(priv, DCPCTR, SUREQ, SUREQ); | |
184 | } | |
185 | ||
258485d9 KM |
186 | /* |
187 | * bus/vbus functions | |
188 | */ | |
189 | void usbhs_bus_send_sof_enable(struct usbhs_priv *priv) | |
190 | { | |
a9be4a45 KM |
191 | u16 status = usbhs_read(priv, DVSTCTR) & (USBRST | UACT); |
192 | ||
193 | if (status != USBRST) { | |
194 | struct device *dev = usbhs_priv_to_dev(priv); | |
195 | dev_err(dev, "usbhs should be reset\n"); | |
196 | } | |
197 | ||
258485d9 KM |
198 | usbhs_bset(priv, DVSTCTR, (USBRST | UACT), UACT); |
199 | } | |
200 | ||
201 | void usbhs_bus_send_reset(struct usbhs_priv *priv) | |
202 | { | |
203 | usbhs_bset(priv, DVSTCTR, (USBRST | UACT), USBRST); | |
204 | } | |
205 | ||
75587f52 KM |
206 | int usbhs_bus_get_speed(struct usbhs_priv *priv) |
207 | { | |
208 | u16 dvstctr = usbhs_read(priv, DVSTCTR); | |
209 | ||
210 | switch (RHST & dvstctr) { | |
211 | case RHST_LOW_SPEED: | |
212 | return USB_SPEED_LOW; | |
213 | case RHST_FULL_SPEED: | |
214 | return USB_SPEED_FULL; | |
215 | case RHST_HIGH_SPEED: | |
216 | return USB_SPEED_HIGH; | |
217 | } | |
218 | ||
219 | return USB_SPEED_UNKNOWN; | |
220 | } | |
221 | ||
258485d9 KM |
222 | int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable) |
223 | { | |
224 | struct platform_device *pdev = usbhs_priv_to_pdev(priv); | |
225 | ||
226 | return usbhs_platform_call(priv, set_vbus, pdev, enable); | |
227 | } | |
228 | ||
229 | static void usbhsc_bus_init(struct usbhs_priv *priv) | |
230 | { | |
231 | usbhs_write(priv, DVSTCTR, 0); | |
232 | ||
233 | usbhs_vbus_ctrl(priv, 0); | |
234 | } | |
235 | ||
eb05191f KM |
236 | /* |
237 | * device configuration | |
238 | */ | |
3dd49268 | 239 | int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, |
eb05191f KM |
240 | u16 upphub, u16 hubport, u16 speed) |
241 | { | |
242 | struct device *dev = usbhs_priv_to_dev(priv); | |
243 | u16 usbspd = 0; | |
244 | u32 reg = DEVADD0 + (2 * devnum); | |
245 | ||
246 | if (devnum > 10) { | |
247 | dev_err(dev, "cannot set speed to unknown device %d\n", devnum); | |
248 | return -EIO; | |
249 | } | |
250 | ||
251 | if (upphub > 0xA) { | |
252 | dev_err(dev, "unsupported hub number %d\n", upphub); | |
253 | return -EIO; | |
254 | } | |
255 | ||
256 | switch (speed) { | |
257 | case USB_SPEED_LOW: | |
258 | usbspd = USBSPD_SPEED_LOW; | |
259 | break; | |
260 | case USB_SPEED_FULL: | |
261 | usbspd = USBSPD_SPEED_FULL; | |
262 | break; | |
263 | case USB_SPEED_HIGH: | |
264 | usbspd = USBSPD_SPEED_HIGH; | |
265 | break; | |
266 | default: | |
267 | dev_err(dev, "unsupported speed %d\n", speed); | |
268 | return -EIO; | |
269 | } | |
270 | ||
271 | usbhs_write(priv, reg, UPPHUB(upphub) | | |
272 | HUBPORT(hubport)| | |
273 | USBSPD(usbspd)); | |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
f1407d5c KM |
278 | /* |
279 | * local functions | |
280 | */ | |
11935de5 | 281 | static void usbhsc_set_buswait(struct usbhs_priv *priv) |
f1407d5c KM |
282 | { |
283 | int wait = usbhs_get_dparam(priv, buswait_bwait); | |
f1407d5c | 284 | |
11935de5 KM |
285 | /* set bus wait if platform have */ |
286 | if (wait) | |
287 | usbhs_bset(priv, BUSWAIT, 0x000F, wait); | |
f1407d5c KM |
288 | } |
289 | ||
290 | /* | |
291 | * platform default param | |
292 | */ | |
8ecef00f UH |
293 | |
294 | /* commonly used on old SH-Mobile SoCs */ | |
f1407d5c KM |
295 | static u32 usbhsc_default_pipe_type[] = { |
296 | USB_ENDPOINT_XFER_CONTROL, | |
297 | USB_ENDPOINT_XFER_ISOC, | |
298 | USB_ENDPOINT_XFER_ISOC, | |
299 | USB_ENDPOINT_XFER_BULK, | |
300 | USB_ENDPOINT_XFER_BULK, | |
301 | USB_ENDPOINT_XFER_BULK, | |
302 | USB_ENDPOINT_XFER_INT, | |
303 | USB_ENDPOINT_XFER_INT, | |
304 | USB_ENDPOINT_XFER_INT, | |
305 | USB_ENDPOINT_XFER_INT, | |
306 | }; | |
307 | ||
8ecef00f UH |
308 | /* commonly used on newer SH-Mobile and R-Car SoCs */ |
309 | static u32 usbhsc_new_pipe_type[] = { | |
310 | USB_ENDPOINT_XFER_CONTROL, | |
311 | USB_ENDPOINT_XFER_ISOC, | |
312 | USB_ENDPOINT_XFER_ISOC, | |
313 | USB_ENDPOINT_XFER_BULK, | |
314 | USB_ENDPOINT_XFER_BULK, | |
315 | USB_ENDPOINT_XFER_BULK, | |
316 | USB_ENDPOINT_XFER_INT, | |
317 | USB_ENDPOINT_XFER_INT, | |
318 | USB_ENDPOINT_XFER_INT, | |
319 | USB_ENDPOINT_XFER_BULK, | |
320 | USB_ENDPOINT_XFER_BULK, | |
321 | USB_ENDPOINT_XFER_BULK, | |
322 | USB_ENDPOINT_XFER_BULK, | |
323 | USB_ENDPOINT_XFER_BULK, | |
324 | USB_ENDPOINT_XFER_BULK, | |
325 | USB_ENDPOINT_XFER_BULK, | |
326 | }; | |
327 | ||
f1407d5c | 328 | /* |
6e267da8 KM |
329 | * power control |
330 | */ | |
331 | static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable) | |
332 | { | |
f1ee56a0 | 333 | struct platform_device *pdev = usbhs_priv_to_pdev(priv); |
6e267da8 KM |
334 | struct device *dev = usbhs_priv_to_dev(priv); |
335 | ||
336 | if (enable) { | |
337 | /* enable PM */ | |
338 | pm_runtime_get_sync(dev); | |
339 | ||
f1ee56a0 KM |
340 | /* enable platform power */ |
341 | usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable); | |
342 | ||
6e267da8 KM |
343 | /* USB on */ |
344 | usbhs_sys_clock_ctrl(priv, enable); | |
6e267da8 KM |
345 | } else { |
346 | /* USB off */ | |
6e267da8 KM |
347 | usbhs_sys_clock_ctrl(priv, enable); |
348 | ||
f1ee56a0 KM |
349 | /* disable platform power */ |
350 | usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable); | |
351 | ||
6e267da8 KM |
352 | /* disable PM */ |
353 | pm_runtime_put_sync(dev); | |
354 | } | |
355 | } | |
356 | ||
357 | /* | |
ca8a282a | 358 | * hotplug |
f1407d5c | 359 | */ |
ca8a282a | 360 | static void usbhsc_hotplug(struct usbhs_priv *priv) |
f1407d5c | 361 | { |
f1407d5c KM |
362 | struct platform_device *pdev = usbhs_priv_to_pdev(priv); |
363 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
364 | int id; | |
365 | int enable; | |
d7b3968d | 366 | int cable; |
f1407d5c KM |
367 | int ret; |
368 | ||
369 | /* | |
370 | * get vbus status from platform | |
371 | */ | |
372 | enable = usbhs_platform_call(priv, get_vbus, pdev); | |
373 | ||
374 | /* | |
375 | * get id from platform | |
376 | */ | |
377 | id = usbhs_platform_call(priv, get_id, pdev); | |
378 | ||
379 | if (enable && !mod) { | |
d7b3968d SS |
380 | if (priv->edev) { |
381 | cable = extcon_get_cable_state(priv->edev, "USB-HOST"); | |
382 | if ((cable > 0 && id != USBHS_HOST) || | |
383 | (!cable && id != USBHS_GADGET)) { | |
384 | dev_info(&pdev->dev, | |
385 | "USB cable plugged in doesn't match the selected role!\n"); | |
386 | return; | |
387 | } | |
388 | } | |
389 | ||
f1407d5c KM |
390 | ret = usbhs_mod_change(priv, id); |
391 | if (ret < 0) | |
392 | return; | |
393 | ||
394 | dev_dbg(&pdev->dev, "%s enable\n", __func__); | |
395 | ||
6e267da8 | 396 | /* power on */ |
b002ff6e KM |
397 | if (usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) |
398 | usbhsc_power_ctrl(priv, enable); | |
f1407d5c | 399 | |
258485d9 KM |
400 | /* bus init */ |
401 | usbhsc_set_buswait(priv); | |
402 | usbhsc_bus_init(priv); | |
403 | ||
f1407d5c KM |
404 | /* module start */ |
405 | usbhs_mod_call(priv, start, priv); | |
406 | ||
407 | } else if (!enable && mod) { | |
408 | dev_dbg(&pdev->dev, "%s disable\n", __func__); | |
409 | ||
410 | /* module stop */ | |
411 | usbhs_mod_call(priv, stop, priv); | |
412 | ||
258485d9 KM |
413 | /* bus init */ |
414 | usbhsc_bus_init(priv); | |
415 | ||
6e267da8 | 416 | /* power off */ |
b002ff6e KM |
417 | if (usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) |
418 | usbhsc_power_ctrl(priv, enable); | |
f1407d5c KM |
419 | |
420 | usbhs_mod_change(priv, -1); | |
421 | ||
422 | /* reset phy for next connection */ | |
423 | usbhs_platform_call(priv, phy_reset, pdev); | |
424 | } | |
425 | } | |
426 | ||
ca8a282a KM |
427 | /* |
428 | * notify hotplug | |
429 | */ | |
430 | static void usbhsc_notify_hotplug(struct work_struct *work) | |
431 | { | |
432 | struct usbhs_priv *priv = container_of(work, | |
433 | struct usbhs_priv, | |
434 | notify_hotplug_work.work); | |
435 | usbhsc_hotplug(priv); | |
436 | } | |
437 | ||
b4fcea2a | 438 | static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) |
f1407d5c | 439 | { |
206dcc2c | 440 | struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); |
bc57381e | 441 | int delay = usbhs_get_dparam(priv, detection_delay); |
f1407d5c KM |
442 | |
443 | /* | |
444 | * This functions will be called in interrupt. | |
445 | * To make sure safety context, | |
446 | * use workqueue for usbhs_notify_hotplug | |
447 | */ | |
a49a88f1 KM |
448 | schedule_delayed_work(&priv->notify_hotplug_work, |
449 | msecs_to_jiffies(delay)); | |
f1407d5c KM |
450 | return 0; |
451 | } | |
452 | ||
453 | /* | |
454 | * platform functions | |
455 | */ | |
b854100e YS |
456 | static const struct of_device_id usbhs_of_match[] = { |
457 | { | |
458 | .compatible = "renesas,usbhs-r8a7790", | |
459 | .data = (void *)USBHS_TYPE_R8A7790, | |
460 | }, | |
461 | { | |
462 | .compatible = "renesas,usbhs-r8a7791", | |
463 | .data = (void *)USBHS_TYPE_R8A7791, | |
464 | }, | |
465 | { }, | |
466 | }; | |
467 | MODULE_DEVICE_TABLE(of, usbhs_of_match); | |
468 | ||
469 | static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev) | |
470 | { | |
471 | struct renesas_usbhs_platform_info *info; | |
472 | struct renesas_usbhs_driver_param *dparam; | |
473 | const struct of_device_id *of_id = of_match_device(usbhs_of_match, dev); | |
474 | u32 tmp; | |
475 | int gpio; | |
476 | ||
477 | info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); | |
478 | if (!info) | |
479 | return NULL; | |
480 | ||
481 | dparam = &info->driver_param; | |
482 | dparam->type = of_id ? (u32)of_id->data : 0; | |
483 | if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp)) | |
484 | dparam->buswait_bwait = tmp; | |
485 | gpio = of_get_named_gpio_flags(dev->of_node, "renesas,enable-gpio", 0, | |
486 | NULL); | |
487 | if (gpio > 0) | |
488 | dparam->enable_gpio = gpio; | |
489 | ||
490 | return info; | |
491 | } | |
492 | ||
b7a8d17d | 493 | static int usbhs_probe(struct platform_device *pdev) |
f1407d5c | 494 | { |
ace0a5f9 | 495 | struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); |
f1407d5c KM |
496 | struct renesas_usbhs_driver_callback *dfunc; |
497 | struct usbhs_priv *priv; | |
53069af3 | 498 | struct resource *res, *irq_res; |
f1407d5c KM |
499 | int ret; |
500 | ||
b854100e YS |
501 | /* check device node */ |
502 | if (pdev->dev.of_node) | |
503 | info = pdev->dev.platform_data = usbhs_parse_dt(&pdev->dev); | |
504 | ||
f1407d5c | 505 | /* check platform information */ |
8ecef00f | 506 | if (!info) { |
f1407d5c KM |
507 | dev_err(&pdev->dev, "no platform information\n"); |
508 | return -EINVAL; | |
509 | } | |
510 | ||
511 | /* platform data */ | |
53069af3 | 512 | irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
687f16b8 | 513 | if (!irq_res) { |
f1407d5c KM |
514 | dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n"); |
515 | return -ENODEV; | |
516 | } | |
517 | ||
518 | /* usb private data */ | |
58efc77c | 519 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); |
b1cb07cd | 520 | if (!priv) |
f1407d5c | 521 | return -ENOMEM; |
f1407d5c | 522 | |
687f16b8 | 523 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
148e1134 TR |
524 | priv->base = devm_ioremap_resource(&pdev->dev, res); |
525 | if (IS_ERR(priv->base)) | |
526 | return PTR_ERR(priv->base); | |
f1407d5c | 527 | |
d7b3968d SS |
528 | if (of_property_read_bool(pdev->dev.of_node, "extcon")) { |
529 | priv->edev = extcon_get_edev_by_phandle(&pdev->dev, 0); | |
530 | if (IS_ERR(priv->edev)) | |
531 | return PTR_ERR(priv->edev); | |
532 | } | |
533 | ||
f1407d5c KM |
534 | /* |
535 | * care platform info | |
536 | */ | |
8ecef00f | 537 | |
48298206 KM |
538 | memcpy(&priv->dparam, |
539 | &info->driver_param, | |
540 | sizeof(struct renesas_usbhs_driver_param)); | |
f1407d5c | 541 | |
8ecef00f UH |
542 | switch (priv->dparam.type) { |
543 | case USBHS_TYPE_R8A7790: | |
544 | case USBHS_TYPE_R8A7791: | |
545 | priv->pfunc = usbhs_rcar2_ops; | |
546 | if (!priv->dparam.pipe_type) { | |
547 | priv->dparam.pipe_type = usbhsc_new_pipe_type; | |
548 | priv->dparam.pipe_size = | |
549 | ARRAY_SIZE(usbhsc_new_pipe_type); | |
550 | } | |
551 | break; | |
552 | default: | |
553 | if (!info->platform_callback.get_id) { | |
554 | dev_err(&pdev->dev, "no platform callbacks"); | |
555 | return -EINVAL; | |
556 | } | |
557 | memcpy(&priv->pfunc, | |
558 | &info->platform_callback, | |
559 | sizeof(struct renesas_usbhs_platform_callback)); | |
560 | break; | |
561 | } | |
562 | ||
f1407d5c KM |
563 | /* set driver callback functions for platform */ |
564 | dfunc = &info->driver_callback; | |
565 | dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug; | |
566 | ||
567 | /* set default param if platform doesn't have */ | |
48298206 KM |
568 | if (!priv->dparam.pipe_type) { |
569 | priv->dparam.pipe_type = usbhsc_default_pipe_type; | |
570 | priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type); | |
f1407d5c | 571 | } |
48298206 KM |
572 | if (!priv->dparam.pio_dma_border) |
573 | priv->dparam.pio_dma_border = 64; /* 64byte */ | |
f1407d5c | 574 | |
b002ff6e KM |
575 | /* FIXME */ |
576 | /* runtime power control ? */ | |
48298206 | 577 | if (priv->pfunc.get_vbus) |
b002ff6e KM |
578 | usbhsc_flags_set(priv, USBHSF_RUNTIME_PWCTRL); |
579 | ||
f1407d5c KM |
580 | /* |
581 | * priv settings | |
582 | */ | |
53069af3 SY |
583 | priv->irq = irq_res->start; |
584 | if (irq_res->flags & IORESOURCE_IRQ_SHAREABLE) | |
585 | priv->irqflags = IRQF_SHARED; | |
f1407d5c | 586 | priv->pdev = pdev; |
bc57381e | 587 | INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug); |
f1407d5c KM |
588 | spin_lock_init(usbhs_priv_to_lock(priv)); |
589 | ||
590 | /* call pipe and module init */ | |
591 | ret = usbhs_pipe_probe(priv); | |
592 | if (ret < 0) | |
58efc77c | 593 | return ret; |
f1407d5c | 594 | |
d3af90a5 | 595 | ret = usbhs_fifo_probe(priv); |
f1407d5c | 596 | if (ret < 0) |
97f93227 | 597 | goto probe_end_pipe_exit; |
f1407d5c | 598 | |
d3af90a5 KM |
599 | ret = usbhs_mod_probe(priv); |
600 | if (ret < 0) | |
601 | goto probe_end_fifo_exit; | |
602 | ||
f1407d5c | 603 | /* dev_set_drvdata should be called after usbhs_mod_init */ |
c9a0552e | 604 | platform_set_drvdata(pdev, priv); |
f1407d5c KM |
605 | |
606 | /* | |
607 | * deviece reset here because | |
608 | * USB device might be used in boot loader. | |
609 | */ | |
610 | usbhs_sys_clock_ctrl(priv, 0); | |
611 | ||
8ecef00f UH |
612 | /* check GPIO determining if USB function should be enabled */ |
613 | if (priv->dparam.enable_gpio) { | |
614 | gpio_request_one(priv->dparam.enable_gpio, GPIOF_IN, NULL); | |
615 | ret = !gpio_get_value(priv->dparam.enable_gpio); | |
616 | gpio_free(priv->dparam.enable_gpio); | |
617 | if (ret) { | |
618 | dev_warn(&pdev->dev, | |
619 | "USB function not selected (GPIO %d)\n", | |
620 | priv->dparam.enable_gpio); | |
621 | ret = -ENOTSUPP; | |
622 | goto probe_end_mod_exit; | |
623 | } | |
624 | } | |
625 | ||
f1407d5c KM |
626 | /* |
627 | * platform call | |
628 | * | |
629 | * USB phy setup might depend on CPU/Board. | |
630 | * If platform has its callback functions, | |
631 | * call it here. | |
632 | */ | |
633 | ret = usbhs_platform_call(priv, hardware_init, pdev); | |
634 | if (ret < 0) { | |
48ac1e57 | 635 | dev_err(&pdev->dev, "platform init failed.\n"); |
97f93227 | 636 | goto probe_end_mod_exit; |
f1407d5c KM |
637 | } |
638 | ||
639 | /* reset phy for connection */ | |
640 | usbhs_platform_call(priv, phy_reset, pdev); | |
641 | ||
b002ff6e KM |
642 | /* power control */ |
643 | pm_runtime_enable(&pdev->dev); | |
644 | if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) { | |
645 | usbhsc_power_ctrl(priv, 1); | |
646 | usbhs_mod_autonomy_mode(priv); | |
647 | } | |
648 | ||
f1407d5c KM |
649 | /* |
650 | * manual call notify_hotplug for cold plug | |
651 | */ | |
368504c0 | 652 | usbhsc_drvcllbck_notify_hotplug(pdev); |
f1407d5c KM |
653 | |
654 | dev_info(&pdev->dev, "probed\n"); | |
655 | ||
656 | return ret; | |
657 | ||
f1407d5c KM |
658 | probe_end_mod_exit: |
659 | usbhs_mod_remove(priv); | |
d3af90a5 KM |
660 | probe_end_fifo_exit: |
661 | usbhs_fifo_remove(priv); | |
97f93227 KM |
662 | probe_end_pipe_exit: |
663 | usbhs_pipe_remove(priv); | |
f1407d5c KM |
664 | |
665 | dev_info(&pdev->dev, "probe failed\n"); | |
666 | ||
667 | return ret; | |
668 | } | |
669 | ||
fb4e98ab | 670 | static int usbhs_remove(struct platform_device *pdev) |
f1407d5c | 671 | { |
206dcc2c | 672 | struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); |
ace0a5f9 | 673 | struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); |
af32fe51 | 674 | struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback; |
f1407d5c KM |
675 | |
676 | dev_dbg(&pdev->dev, "usb remove\n"); | |
677 | ||
af32fe51 KM |
678 | dfunc->notify_hotplug = NULL; |
679 | ||
b002ff6e KM |
680 | /* power off */ |
681 | if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) | |
682 | usbhsc_power_ctrl(priv, 0); | |
f1407d5c | 683 | |
b002ff6e | 684 | pm_runtime_disable(&pdev->dev); |
f1407d5c KM |
685 | |
686 | usbhs_platform_call(priv, hardware_exit, pdev); | |
f1407d5c | 687 | usbhs_mod_remove(priv); |
d3af90a5 | 688 | usbhs_fifo_remove(priv); |
97f93227 | 689 | usbhs_pipe_remove(priv); |
f1407d5c KM |
690 | |
691 | return 0; | |
692 | } | |
693 | ||
ca8a282a KM |
694 | static int usbhsc_suspend(struct device *dev) |
695 | { | |
696 | struct usbhs_priv *priv = dev_get_drvdata(dev); | |
697 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
698 | ||
699 | if (mod) { | |
700 | usbhs_mod_call(priv, stop, priv); | |
701 | usbhs_mod_change(priv, -1); | |
702 | } | |
703 | ||
704 | if (mod || !usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) | |
705 | usbhsc_power_ctrl(priv, 0); | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | static int usbhsc_resume(struct device *dev) | |
711 | { | |
712 | struct usbhs_priv *priv = dev_get_drvdata(dev); | |
713 | struct platform_device *pdev = usbhs_priv_to_pdev(priv); | |
714 | ||
ca8a282a KM |
715 | if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) |
716 | usbhsc_power_ctrl(priv, 1); | |
717 | ||
5b50d3b5 KM |
718 | usbhs_platform_call(priv, phy_reset, pdev); |
719 | ||
720 | usbhsc_drvcllbck_notify_hotplug(pdev); | |
ca8a282a KM |
721 | |
722 | return 0; | |
723 | } | |
724 | ||
725 | static int usbhsc_runtime_nop(struct device *dev) | |
726 | { | |
727 | /* Runtime PM callback shared between ->runtime_suspend() | |
728 | * and ->runtime_resume(). Simply returns success. | |
729 | * | |
730 | * This driver re-initializes all registers after | |
731 | * pm_runtime_get_sync() anyway so there is no need | |
732 | * to save and restore registers here. | |
733 | */ | |
734 | return 0; | |
735 | } | |
736 | ||
737 | static const struct dev_pm_ops usbhsc_pm_ops = { | |
738 | .suspend = usbhsc_suspend, | |
739 | .resume = usbhsc_resume, | |
740 | .runtime_suspend = usbhsc_runtime_nop, | |
741 | .runtime_resume = usbhsc_runtime_nop, | |
742 | }; | |
743 | ||
f1407d5c KM |
744 | static struct platform_driver renesas_usbhs_driver = { |
745 | .driver = { | |
746 | .name = "renesas_usbhs", | |
ca8a282a | 747 | .pm = &usbhsc_pm_ops, |
b854100e | 748 | .of_match_table = of_match_ptr(usbhs_of_match), |
f1407d5c KM |
749 | }, |
750 | .probe = usbhs_probe, | |
7690417d | 751 | .remove = usbhs_remove, |
f1407d5c KM |
752 | }; |
753 | ||
cc27c96c | 754 | module_platform_driver(renesas_usbhs_driver); |
f1407d5c KM |
755 | |
756 | MODULE_LICENSE("GPL"); | |
757 | MODULE_DESCRIPTION("Renesas USB driver"); | |
758 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |