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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
5d304358 YS |
2 | /* |
3 | * R8A66597 HCD (Host Controller Driver) | |
4 | * | |
5 | * Copyright (C) 2006-2007 Renesas Solutions Corp. | |
6 | * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO) | |
7 | * Portions Copyright (C) 2004-2005 David Brownell | |
8 | * Portions Copyright (C) 1999 Roman Weissgaerber | |
9 | * | |
45304e8c | 10 | * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> |
5d304358 YS |
11 | */ |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/sched.h> | |
5d304358 | 16 | #include <linux/errno.h> |
5d304358 YS |
17 | #include <linux/timer.h> |
18 | #include <linux/delay.h> | |
19 | #include <linux/list.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/usb.h> | |
27729aad | 22 | #include <linux/usb/hcd.h> |
5d304358 | 23 | #include <linux/platform_device.h> |
e294531d | 24 | #include <linux/io.h> |
2717568e | 25 | #include <linux/mm.h> |
e294531d | 26 | #include <linux/irq.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
2717568e | 28 | #include <asm/cacheflush.h> |
5d304358 | 29 | |
5d304358 YS |
30 | #include "r8a66597.h" |
31 | ||
32 | MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); | |
33 | MODULE_LICENSE("GPL"); | |
34 | MODULE_AUTHOR("Yoshihiro Shimoda"); | |
f4fce61d | 35 | MODULE_ALIAS("platform:r8a66597_hcd"); |
5d304358 | 36 | |
5effabbe | 37 | #define DRIVER_VERSION "2009-05-26" |
5d304358 YS |
38 | |
39 | static const char hcd_name[] = "r8a66597_hcd"; | |
40 | ||
5d304358 YS |
41 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); |
42 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
43 | ||
44 | /* this function must be called with interrupt disabled */ | |
45 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
46 | unsigned long reg) | |
47 | { | |
48 | u16 tmp; | |
49 | ||
50 | tmp = r8a66597_read(r8a66597, INTENB0); | |
51 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
52 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
53 | r8a66597_write(r8a66597, tmp, INTENB0); | |
54 | } | |
55 | ||
56 | /* this function must be called with interrupt disabled */ | |
57 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
58 | unsigned long reg) | |
59 | { | |
60 | u16 tmp; | |
61 | ||
62 | tmp = r8a66597_read(r8a66597, INTENB0); | |
63 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
64 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
65 | r8a66597_write(r8a66597, tmp, INTENB0); | |
66 | } | |
67 | ||
68 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
69 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
70 | { | |
71 | u16 val; | |
72 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
73 | ||
74 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
75 | r8a66597_write(r8a66597, val, devadd_reg); | |
76 | } | |
77 | ||
9424ea29 | 78 | static int r8a66597_clock_enable(struct r8a66597 *r8a66597) |
5d304358 YS |
79 | { |
80 | u16 tmp; | |
81 | int i = 0; | |
82 | ||
719a72b7 | 83 | if (r8a66597->pdata->on_chip) { |
9b547a88 | 84 | clk_prepare_enable(r8a66597->clk); |
719a72b7 MD |
85 | do { |
86 | r8a66597_write(r8a66597, SCKE, SYSCFG0); | |
87 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
88 | if (i++ > 1000) { | |
89 | printk(KERN_ERR "r8a66597: reg access fail.\n"); | |
90 | return -ENXIO; | |
91 | } | |
92 | } while ((tmp & SCKE) != SCKE); | |
93 | r8a66597_write(r8a66597, 0x04, 0x02); | |
94 | } else { | |
95 | do { | |
96 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
97 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
98 | if (i++ > 1000) { | |
99 | printk(KERN_ERR "r8a66597: reg access fail.\n"); | |
100 | return -ENXIO; | |
101 | } | |
102 | } while ((tmp & USBE) != USBE); | |
103 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
104 | r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata), | |
105 | XTAL, SYSCFG0); | |
5d304358 | 106 | |
719a72b7 MD |
107 | i = 0; |
108 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
109 | do { | |
110 | msleep(1); | |
111 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
112 | if (i++ > 500) { | |
113 | printk(KERN_ERR "r8a66597: reg access fail.\n"); | |
114 | return -ENXIO; | |
115 | } | |
116 | } while ((tmp & SCKE) != SCKE); | |
117 | } | |
9424ea29 YS |
118 | |
119 | return 0; | |
120 | } | |
121 | ||
122 | static void r8a66597_clock_disable(struct r8a66597 *r8a66597) | |
123 | { | |
124 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
125 | udelay(1); | |
719a72b7 MD |
126 | |
127 | if (r8a66597->pdata->on_chip) { | |
9b547a88 | 128 | clk_disable_unprepare(r8a66597->clk); |
719a72b7 MD |
129 | } else { |
130 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); | |
131 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
132 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
133 | } | |
9424ea29 YS |
134 | } |
135 | ||
136 | static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) | |
137 | { | |
138 | u16 val; | |
139 | ||
140 | val = port ? DRPD : DCFM | DRPD; | |
141 | r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); | |
142 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
143 | ||
144 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); | |
145 | r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port)); | |
146 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
147 | } | |
148 | ||
149 | static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) | |
150 | { | |
151 | u16 val, tmp; | |
152 | ||
153 | r8a66597_write(r8a66597, 0, get_intenb_reg(port)); | |
154 | r8a66597_write(r8a66597, 0, get_intsts_reg(port)); | |
5d304358 | 155 | |
9424ea29 YS |
156 | r8a66597_port_power(r8a66597, port, 0); |
157 | ||
158 | do { | |
159 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
160 | udelay(640); | |
161 | } while (tmp == EDGESTS); | |
162 | ||
163 | val = port ? DRPD : DCFM | DRPD; | |
164 | r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); | |
165 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
166 | } | |
167 | ||
168 | static int enable_controller(struct r8a66597 *r8a66597) | |
169 | { | |
170 | int ret, port; | |
5effabbe YS |
171 | u16 vif = r8a66597->pdata->vif ? LDRV : 0; |
172 | u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0; | |
173 | u16 endian = r8a66597->pdata->endian ? BIGEND : 0; | |
9424ea29 YS |
174 | |
175 | ret = r8a66597_clock_enable(r8a66597); | |
176 | if (ret < 0) | |
177 | return ret; | |
5d304358 YS |
178 | |
179 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
5d304358 YS |
180 | r8a66597_bset(r8a66597, USBE, SYSCFG0); |
181 | ||
182 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
183 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
184 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
185 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
186 | ||
5d304358 YS |
187 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); |
188 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
189 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
5d304358 YS |
190 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); |
191 | ||
192 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
9424ea29 | 193 | |
719a72b7 | 194 | for (port = 0; port < r8a66597->max_root_hub; port++) |
9424ea29 | 195 | r8a66597_enable_port(r8a66597, port); |
5d304358 YS |
196 | |
197 | return 0; | |
198 | } | |
199 | ||
200 | static void disable_controller(struct r8a66597 *r8a66597) | |
201 | { | |
9424ea29 | 202 | int port; |
5d304358 | 203 | |
e5ff15be | 204 | /* disable interrupts */ |
5d304358 | 205 | r8a66597_write(r8a66597, 0, INTENB0); |
e5ff15be MD |
206 | r8a66597_write(r8a66597, 0, INTENB1); |
207 | r8a66597_write(r8a66597, 0, BRDYENB); | |
208 | r8a66597_write(r8a66597, 0, BEMPENB); | |
209 | r8a66597_write(r8a66597, 0, NRDYENB); | |
210 | ||
211 | /* clear status */ | |
212 | r8a66597_write(r8a66597, 0, BRDYSTS); | |
213 | r8a66597_write(r8a66597, 0, NRDYSTS); | |
214 | r8a66597_write(r8a66597, 0, BEMPSTS); | |
5d304358 | 215 | |
719a72b7 | 216 | for (port = 0; port < r8a66597->max_root_hub; port++) |
9424ea29 | 217 | r8a66597_disable_port(r8a66597, port); |
5d304358 | 218 | |
9424ea29 | 219 | r8a66597_clock_disable(r8a66597); |
5d304358 YS |
220 | } |
221 | ||
222 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
223 | struct usb_device *udev) | |
224 | { | |
225 | struct r8a66597_device *dev; | |
226 | ||
227 | if (udev->parent && udev->parent->devnum != 1) | |
228 | udev = udev->parent; | |
229 | ||
230 | dev = dev_get_drvdata(&udev->dev); | |
231 | if (dev) | |
232 | return dev->address; | |
233 | else | |
234 | return 0; | |
235 | } | |
236 | ||
237 | static int is_child_device(char *devpath) | |
238 | { | |
239 | return (devpath[2] ? 1 : 0); | |
240 | } | |
241 | ||
242 | static int is_hub_limit(char *devpath) | |
243 | { | |
244 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
245 | } | |
246 | ||
719a72b7 MD |
247 | static void get_port_number(struct r8a66597 *r8a66597, |
248 | char *devpath, u16 *root_port, u16 *hub_port) | |
5d304358 YS |
249 | { |
250 | if (root_port) { | |
251 | *root_port = (devpath[0] & 0x0F) - 1; | |
719a72b7 | 252 | if (*root_port >= r8a66597->max_root_hub) |
802f389a | 253 | printk(KERN_ERR "r8a66597: Illegal root port number.\n"); |
5d304358 YS |
254 | } |
255 | if (hub_port) | |
256 | *hub_port = devpath[2] & 0x0F; | |
257 | } | |
258 | ||
259 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
260 | { | |
261 | u16 usbspd = 0; | |
262 | ||
263 | switch (speed) { | |
264 | case USB_SPEED_LOW: | |
265 | usbspd = LSMODE; | |
266 | break; | |
267 | case USB_SPEED_FULL: | |
268 | usbspd = FSMODE; | |
269 | break; | |
270 | case USB_SPEED_HIGH: | |
271 | usbspd = HSMODE; | |
272 | break; | |
273 | default: | |
802f389a | 274 | printk(KERN_ERR "r8a66597: unknown speed\n"); |
5d304358 YS |
275 | break; |
276 | } | |
277 | ||
278 | return usbspd; | |
279 | } | |
280 | ||
281 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
282 | { | |
283 | int idx; | |
284 | ||
285 | idx = address / 32; | |
286 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
287 | } | |
288 | ||
289 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
290 | { | |
291 | int idx; | |
292 | ||
293 | idx = address / 32; | |
294 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
295 | } | |
296 | ||
297 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
298 | { | |
299 | u16 pipenum = pipe->info.pipenum; | |
fe9b9034 ML |
300 | const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; |
301 | const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
302 | const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
5d304358 YS |
303 | |
304 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
305 | dma_ch = R8A66597_PIPE_NO_DMA; | |
306 | ||
307 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
308 | pipe->fifosel = fifosel[dma_ch]; | |
309 | pipe->fifoctr = fifoctr[dma_ch]; | |
310 | ||
311 | if (pipenum == 0) | |
312 | pipe->pipectr = DCPCTR; | |
313 | else | |
314 | pipe->pipectr = get_pipectr_addr(pipenum); | |
315 | ||
316 | if (check_bulk_or_isoc(pipenum)) { | |
317 | pipe->pipetre = get_pipetre_addr(pipenum); | |
318 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
319 | } else { | |
320 | pipe->pipetre = 0; | |
321 | pipe->pipetrn = 0; | |
322 | } | |
323 | } | |
324 | ||
325 | static struct r8a66597_device * | |
326 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
327 | { | |
328 | if (usb_pipedevice(urb->pipe) == 0) | |
329 | return &r8a66597->device0; | |
330 | ||
331 | return dev_get_drvdata(&urb->dev->dev); | |
332 | } | |
333 | ||
334 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
335 | struct urb *urb, u8 addr) | |
336 | { | |
337 | struct r8a66597_device *dev; | |
338 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
339 | ||
e294531d | 340 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
341 | if (dev == NULL) |
342 | return -ENOMEM; | |
343 | ||
344 | dev_set_drvdata(&urb->dev->dev, dev); | |
345 | dev->udev = urb->dev; | |
346 | dev->address = addr; | |
347 | dev->usb_address = usb_address; | |
348 | dev->state = USB_STATE_ADDRESS; | |
349 | dev->ep_in_toggle = 0; | |
350 | dev->ep_out_toggle = 0; | |
351 | INIT_LIST_HEAD(&dev->device_list); | |
352 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
353 | ||
719a72b7 MD |
354 | get_port_number(r8a66597, urb->dev->devpath, |
355 | &dev->root_port, &dev->hub_port); | |
5d304358 YS |
356 | if (!is_child_device(urb->dev->devpath)) |
357 | r8a66597->root_hub[dev->root_port].dev = dev; | |
358 | ||
359 | set_devadd_reg(r8a66597, dev->address, | |
360 | get_r8a66597_usb_speed(urb->dev->speed), | |
361 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
362 | dev->hub_port, dev->root_port); | |
363 | ||
364 | return 0; | |
365 | } | |
366 | ||
367 | /* this function must be called with interrupt disabled */ | |
368 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
369 | { | |
370 | u8 addr; /* R8A66597's address */ | |
371 | struct r8a66597_device *dev; | |
372 | ||
373 | if (is_hub_limit(urb->dev->devpath)) { | |
802f389a | 374 | dev_err(&urb->dev->dev, "External hub limit reached.\n"); |
5d304358 YS |
375 | return 0; |
376 | } | |
377 | ||
378 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
379 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
380 | return dev->address; | |
381 | ||
382 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
383 | if (r8a66597->address_map & (1 << addr)) | |
384 | continue; | |
385 | ||
167e4925 | 386 | dev_dbg(&urb->dev->dev, "alloc_address: r8a66597_addr=%d\n", addr); |
5d304358 YS |
387 | r8a66597->address_map |= 1 << addr; |
388 | ||
389 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
390 | return 0; | |
391 | ||
392 | return addr; | |
393 | } | |
394 | ||
802f389a GKH |
395 | dev_err(&urb->dev->dev, |
396 | "cannot communicate with a USB device more than 10.(%x)\n", | |
397 | r8a66597->address_map); | |
5d304358 YS |
398 | |
399 | return 0; | |
400 | } | |
401 | ||
402 | /* this function must be called with interrupt disabled */ | |
403 | static void free_usb_address(struct r8a66597 *r8a66597, | |
d8359334 | 404 | struct r8a66597_device *dev, int reset) |
5d304358 YS |
405 | { |
406 | int port; | |
407 | ||
408 | if (!dev) | |
409 | return; | |
410 | ||
167e4925 | 411 | dev_dbg(&dev->udev->dev, "free_addr: addr=%d\n", dev->address); |
5d304358 YS |
412 | |
413 | dev->state = USB_STATE_DEFAULT; | |
414 | r8a66597->address_map &= ~(1 << dev->address); | |
415 | dev->address = 0; | |
d8359334 YS |
416 | /* |
417 | * Only when resetting USB, it is necessary to erase drvdata. When | |
418 | * a usb device with usb hub is disconnect, "dev->udev" is already | |
419 | * freed on usb_desconnect(). So we cannot access the data. | |
420 | */ | |
421 | if (reset) | |
422 | dev_set_drvdata(&dev->udev->dev, NULL); | |
5d304358 YS |
423 | list_del(&dev->device_list); |
424 | kfree(dev); | |
425 | ||
719a72b7 | 426 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
5d304358 YS |
427 | if (r8a66597->root_hub[port].dev == dev) { |
428 | r8a66597->root_hub[port].dev = NULL; | |
429 | break; | |
430 | } | |
431 | } | |
432 | } | |
433 | ||
434 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
435 | u16 mask, u16 loop) | |
436 | { | |
437 | u16 tmp; | |
438 | int i = 0; | |
439 | ||
440 | do { | |
441 | tmp = r8a66597_read(r8a66597, reg); | |
442 | if (i++ > 1000000) { | |
802f389a GKH |
443 | printk(KERN_ERR "r8a66597: register%lx, loop %x " |
444 | "is timeout\n", reg, loop); | |
5d304358 YS |
445 | break; |
446 | } | |
447 | ndelay(1); | |
448 | } while ((tmp & mask) != loop); | |
449 | } | |
450 | ||
451 | /* this function must be called with interrupt disabled */ | |
452 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
453 | { | |
454 | u16 tmp; | |
455 | ||
456 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
457 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
458 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
459 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
460 | } | |
461 | ||
462 | /* this function must be called with interrupt disabled */ | |
463 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
464 | { | |
465 | u16 tmp; | |
466 | ||
467 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
468 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
469 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
470 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
471 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
472 | } | |
473 | ||
474 | /* this function must be called with interrupt disabled */ | |
475 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
476 | struct r8a66597_pipe *pipe) | |
477 | { | |
5d304358 YS |
478 | if (!pipe || pipe->info.pipenum == 0) |
479 | return; | |
480 | ||
481 | pipe_stop(r8a66597, pipe); | |
482 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
33a4eeb1 LJ |
483 | r8a66597_read(r8a66597, pipe->pipectr); |
484 | r8a66597_read(r8a66597, pipe->pipectr); | |
485 | r8a66597_read(r8a66597, pipe->pipectr); | |
5d304358 YS |
486 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); |
487 | } | |
488 | ||
489 | /* this function must be called with interrupt disabled */ | |
490 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
491 | struct r8a66597_pipe *pipe, int toggle) | |
492 | { | |
493 | if (toggle) | |
494 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
495 | else | |
496 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
497 | } | |
498 | ||
719a72b7 MD |
499 | static inline unsigned short mbw_value(struct r8a66597 *r8a66597) |
500 | { | |
501 | if (r8a66597->pdata->on_chip) | |
502 | return MBW_32; | |
503 | else | |
504 | return MBW_16; | |
505 | } | |
506 | ||
5d304358 YS |
507 | /* this function must be called with interrupt disabled */ |
508 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
509 | { | |
719a72b7 MD |
510 | unsigned short mbw = mbw_value(r8a66597); |
511 | ||
512 | r8a66597_mdfy(r8a66597, mbw | pipenum, mbw | CURPIPE, CFIFOSEL); | |
5d304358 YS |
513 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); |
514 | } | |
515 | ||
516 | /* this function must be called with interrupt disabled */ | |
517 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
518 | struct r8a66597_pipe *pipe) | |
519 | { | |
719a72b7 MD |
520 | unsigned short mbw = mbw_value(r8a66597); |
521 | ||
5d304358 | 522 | cfifo_change(r8a66597, 0); |
719a72b7 MD |
523 | r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D0FIFOSEL); |
524 | r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D1FIFOSEL); | |
5d304358 | 525 | |
719a72b7 | 526 | r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, mbw | CURPIPE, |
5d304358 YS |
527 | pipe->fifosel); |
528 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
529 | } | |
530 | ||
531 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
532 | { | |
533 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
534 | ||
535 | if (usb_pipeendpoint(urb->pipe) == 0) | |
536 | return 0; | |
537 | else | |
538 | return pipe->info.pipenum; | |
539 | } | |
540 | ||
541 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
542 | { | |
543 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
544 | ||
545 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
546 | } | |
547 | ||
548 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
549 | int urb_pipe) | |
550 | { | |
551 | if (!dev) | |
552 | return NULL; | |
553 | ||
554 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
555 | } | |
556 | ||
557 | /* this function must be called with interrupt disabled */ | |
558 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
559 | struct r8a66597_pipe *pipe, | |
560 | struct urb *urb, int set) | |
561 | { | |
562 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
563 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
564 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
565 | ||
566 | if (!toggle) | |
567 | return; | |
568 | ||
569 | if (set) | |
570 | *toggle |= 1 << endpoint; | |
571 | else | |
572 | *toggle &= ~(1 << endpoint); | |
573 | } | |
574 | ||
575 | /* this function must be called with interrupt disabled */ | |
576 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
577 | struct r8a66597_pipe *pipe, | |
578 | struct urb *urb) | |
579 | { | |
580 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
581 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
582 | else | |
583 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
584 | } | |
585 | ||
586 | /* this function must be called with interrupt disabled */ | |
587 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
588 | struct r8a66597_pipe *pipe, | |
589 | struct urb *urb) | |
590 | { | |
591 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
592 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
593 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
594 | ||
f6ace2c9 YS |
595 | if (!toggle) |
596 | return; | |
597 | ||
5d304358 YS |
598 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
599 | } | |
600 | ||
601 | /* this function must be called with interrupt disabled */ | |
602 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
603 | struct r8a66597_pipe_info *info) | |
604 | { | |
605 | u16 val = 0; | |
606 | ||
607 | if (info->pipenum == 0) | |
608 | return; | |
609 | ||
610 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
611 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
612 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
613 | if (!info->dir_in) | |
614 | val |= R8A66597_DIR; | |
615 | if (info->type == R8A66597_BULK && info->dir_in) | |
616 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
617 | val |= info->type | info->epnum; | |
618 | r8a66597_write(r8a66597, val, PIPECFG); | |
619 | ||
620 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
621 | PIPEBUF); | |
622 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
623 | PIPEMAXP); | |
5d304358 YS |
624 | r8a66597_write(r8a66597, info->interval, PIPEPERI); |
625 | } | |
626 | ||
5d304358 YS |
627 | /* this function must be called with interrupt disabled */ |
628 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
629 | { | |
630 | struct r8a66597_pipe_info *info; | |
631 | struct urb *urb = td->urb; | |
632 | ||
633 | if (td->pipenum > 0) { | |
634 | info = &td->pipe->info; | |
635 | cfifo_change(r8a66597, 0); | |
636 | pipe_buffer_setting(r8a66597, info); | |
637 | ||
638 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
639 | usb_pipeout(urb->pipe)) && | |
640 | !usb_pipecontrol(urb->pipe)) { | |
641 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
642 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
643 | clear_all_buffer(r8a66597, td->pipe); | |
644 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
645 | usb_pipeout(urb->pipe), 1); | |
646 | } | |
647 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
648 | } | |
649 | } | |
650 | ||
651 | /* this function must be called with interrupt disabled */ | |
652 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
653 | struct usb_endpoint_descriptor *ep) | |
654 | { | |
655 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
656 | ||
657 | memset(array, 0, sizeof(array)); | |
2e0fe709 | 658 | switch (usb_endpoint_type(ep)) { |
e294531d | 659 | case USB_ENDPOINT_XFER_BULK: |
2e0fe709 | 660 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
661 | array[i++] = 4; |
662 | else { | |
663 | array[i++] = 3; | |
664 | array[i++] = 5; | |
665 | } | |
e294531d YS |
666 | break; |
667 | case USB_ENDPOINT_XFER_INT: | |
2e0fe709 | 668 | if (usb_endpoint_dir_in(ep)) { |
5d304358 YS |
669 | array[i++] = 6; |
670 | array[i++] = 7; | |
671 | array[i++] = 8; | |
672 | } else | |
673 | array[i++] = 9; | |
e294531d YS |
674 | break; |
675 | case USB_ENDPOINT_XFER_ISOC: | |
2e0fe709 | 676 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
677 | array[i++] = 2; |
678 | else | |
679 | array[i++] = 1; | |
e294531d YS |
680 | break; |
681 | default: | |
802f389a | 682 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
e294531d YS |
683 | return 0; |
684 | } | |
5d304358 YS |
685 | |
686 | i = 1; | |
687 | min = array[0]; | |
688 | while (array[i] != 0) { | |
689 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
690 | min = array[i]; | |
691 | i++; | |
692 | } | |
693 | ||
694 | return min; | |
695 | } | |
696 | ||
697 | static u16 get_r8a66597_type(__u8 type) | |
698 | { | |
699 | u16 r8a66597_type; | |
700 | ||
e294531d | 701 | switch (type) { |
5d304358 YS |
702 | case USB_ENDPOINT_XFER_BULK: |
703 | r8a66597_type = R8A66597_BULK; | |
704 | break; | |
705 | case USB_ENDPOINT_XFER_INT: | |
706 | r8a66597_type = R8A66597_INT; | |
707 | break; | |
708 | case USB_ENDPOINT_XFER_ISOC: | |
709 | r8a66597_type = R8A66597_ISO; | |
710 | break; | |
711 | default: | |
802f389a | 712 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
5d304358 YS |
713 | r8a66597_type = 0x0000; |
714 | break; | |
715 | } | |
716 | ||
717 | return r8a66597_type; | |
718 | } | |
719 | ||
720 | static u16 get_bufnum(u16 pipenum) | |
721 | { | |
722 | u16 bufnum = 0; | |
723 | ||
724 | if (pipenum == 0) | |
725 | bufnum = 0; | |
726 | else if (check_bulk_or_isoc(pipenum)) | |
727 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
728 | else if (check_interrupt(pipenum)) | |
729 | bufnum = 4 + (pipenum - 6); | |
730 | else | |
802f389a | 731 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
732 | |
733 | return bufnum; | |
734 | } | |
735 | ||
736 | static u16 get_buf_bsize(u16 pipenum) | |
737 | { | |
738 | u16 buf_bsize = 0; | |
739 | ||
740 | if (pipenum == 0) | |
741 | buf_bsize = 3; | |
742 | else if (check_bulk_or_isoc(pipenum)) | |
743 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
744 | else if (check_interrupt(pipenum)) | |
745 | buf_bsize = 0; | |
746 | else | |
802f389a | 747 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
748 | |
749 | return buf_bsize; | |
750 | } | |
751 | ||
752 | /* this function must be called with interrupt disabled */ | |
753 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
754 | struct r8a66597_device *dev, | |
755 | struct r8a66597_pipe *pipe, | |
756 | struct urb *urb) | |
757 | { | |
758 | int i; | |
759 | struct r8a66597_pipe_info *info = &pipe->info; | |
719a72b7 MD |
760 | unsigned short mbw = mbw_value(r8a66597); |
761 | ||
762 | /* pipe dma is only for external controlles */ | |
763 | if (r8a66597->pdata->on_chip) | |
764 | return; | |
5d304358 YS |
765 | |
766 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
767 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
768 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
769 | continue; | |
770 | ||
5909f6ea GKH |
771 | dev_info(&dev->udev->dev, |
772 | "address %d, EndpointAddress 0x%02x use " | |
773 | "DMA FIFO\n", usb_pipedevice(urb->pipe), | |
774 | info->dir_in ? | |
775 | USB_ENDPOINT_DIR_MASK + info->epnum | |
776 | : info->epnum); | |
5d304358 YS |
777 | |
778 | r8a66597->dma_map |= 1 << i; | |
779 | dev->dma_map |= 1 << i; | |
780 | set_pipe_reg_addr(pipe, i); | |
781 | ||
782 | cfifo_change(r8a66597, 0); | |
719a72b7 MD |
783 | r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, |
784 | mbw | CURPIPE, pipe->fifosel); | |
5d304358 YS |
785 | |
786 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
787 | pipe->info.pipenum); | |
788 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
789 | break; | |
790 | } | |
791 | } | |
792 | } | |
793 | ||
794 | /* this function must be called with interrupt disabled */ | |
795 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
796 | struct usb_host_endpoint *hep, | |
797 | struct r8a66597_pipe_info *info) | |
798 | { | |
799 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
800 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
801 | ||
167e4925 | 802 | dev_dbg(&dev->udev->dev, "enable_pipe:\n"); |
5d304358 YS |
803 | |
804 | pipe->info = *info; | |
805 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
806 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
807 | dev->pipe_cnt[pipe->info.pipenum]++; | |
808 | ||
809 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
810 | } | |
811 | ||
2717568e PM |
812 | static void r8a66597_urb_done(struct r8a66597 *r8a66597, struct urb *urb, |
813 | int status) | |
814 | __releases(r8a66597->lock) | |
815 | __acquires(r8a66597->lock) | |
816 | { | |
817 | if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) { | |
818 | void *ptr; | |
819 | ||
820 | for (ptr = urb->transfer_buffer; | |
821 | ptr < urb->transfer_buffer + urb->transfer_buffer_length; | |
822 | ptr += PAGE_SIZE) | |
823 | flush_dcache_page(virt_to_page(ptr)); | |
824 | } | |
825 | ||
826 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); | |
827 | spin_unlock(&r8a66597->lock); | |
828 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, status); | |
829 | spin_lock(&r8a66597->lock); | |
830 | } | |
831 | ||
5d304358 YS |
832 | /* this function must be called with interrupt disabled */ |
833 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
834 | { | |
835 | struct r8a66597_td *td, *next; | |
836 | struct urb *urb; | |
837 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
838 | ||
839 | if (list_empty(list)) | |
840 | return; | |
841 | ||
842 | list_for_each_entry_safe(td, next, list, queue) { | |
5d304358 YS |
843 | if (td->address != address) |
844 | continue; | |
845 | ||
846 | urb = td->urb; | |
847 | list_del(&td->queue); | |
848 | kfree(td); | |
849 | ||
2717568e PM |
850 | if (urb) |
851 | r8a66597_urb_done(r8a66597, urb, -ENODEV); | |
e9df41c5 | 852 | |
5d304358 YS |
853 | break; |
854 | } | |
855 | } | |
856 | ||
857 | /* this function must be called with interrupt disabled */ | |
858 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
859 | struct r8a66597_device *dev) | |
860 | { | |
861 | int check_ep0 = 0; | |
862 | u16 pipenum; | |
863 | ||
864 | if (!dev) | |
865 | return; | |
866 | ||
867 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
868 | if (!dev->pipe_cnt[pipenum]) | |
869 | continue; | |
870 | ||
871 | if (!check_ep0) { | |
872 | check_ep0 = 1; | |
873 | force_dequeue(r8a66597, 0, dev->address); | |
874 | } | |
875 | ||
876 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
877 | dev->pipe_cnt[pipenum] = 0; | |
878 | force_dequeue(r8a66597, pipenum, dev->address); | |
879 | } | |
880 | ||
167e4925 | 881 | dev_dbg(&dev->udev->dev, "disable_pipe\n"); |
5d304358 YS |
882 | |
883 | r8a66597->dma_map &= ~(dev->dma_map); | |
884 | dev->dma_map = 0; | |
885 | } | |
886 | ||
397f519a YS |
887 | static u16 get_interval(struct urb *urb, __u8 interval) |
888 | { | |
889 | u16 time = 1; | |
890 | int i; | |
891 | ||
892 | if (urb->dev->speed == USB_SPEED_HIGH) { | |
893 | if (interval > IITV) | |
894 | time = IITV; | |
895 | else | |
896 | time = interval ? interval - 1 : 0; | |
897 | } else { | |
898 | if (interval > 128) { | |
899 | time = IITV; | |
900 | } else { | |
901 | /* calculate the nearest value for PIPEPERI */ | |
902 | for (i = 0; i < 7; i++) { | |
903 | if ((1 << i) < interval && | |
904 | (1 << (i + 1) > interval)) | |
905 | time = 1 << i; | |
906 | } | |
907 | } | |
908 | } | |
909 | ||
910 | return time; | |
911 | } | |
912 | ||
6d879107 YS |
913 | static unsigned long get_timer_interval(struct urb *urb, __u8 interval) |
914 | { | |
915 | __u8 i; | |
916 | unsigned long time = 1; | |
917 | ||
918 | if (usb_pipeisoc(urb->pipe)) | |
919 | return 0; | |
920 | ||
921 | if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) { | |
922 | for (i = 0; i < (interval - 1); i++) | |
923 | time *= 2; | |
924 | time = time * 125 / 1000; /* uSOF -> msec */ | |
925 | } else { | |
926 | time = interval; | |
927 | } | |
928 | ||
929 | return time; | |
930 | } | |
931 | ||
5d304358 YS |
932 | /* this function must be called with interrupt disabled */ |
933 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
934 | struct usb_host_endpoint *hep, | |
935 | struct usb_endpoint_descriptor *ep) | |
936 | { | |
937 | struct r8a66597_pipe_info info; | |
938 | ||
939 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
940 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
2e0fe709 | 941 | info.epnum = usb_endpoint_num(ep); |
29cc8897 | 942 | info.maxpacket = usb_endpoint_maxp(ep); |
2e0fe709 | 943 | info.type = get_r8a66597_type(usb_endpoint_type(ep)); |
5d304358 YS |
944 | info.bufnum = get_bufnum(info.pipenum); |
945 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
6d879107 YS |
946 | if (info.type == R8A66597_BULK) { |
947 | info.interval = 0; | |
948 | info.timer_interval = 0; | |
949 | } else { | |
397f519a | 950 | info.interval = get_interval(urb, ep->bInterval); |
6d879107 YS |
951 | info.timer_interval = get_timer_interval(urb, ep->bInterval); |
952 | } | |
2e0fe709 | 953 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
954 | info.dir_in = 1; |
955 | else | |
956 | info.dir_in = 0; | |
957 | ||
958 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
959 | } | |
960 | ||
961 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
962 | { | |
963 | struct r8a66597_device *dev; | |
964 | ||
965 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
966 | dev->state = USB_STATE_CONFIGURED; | |
967 | } | |
968 | ||
969 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
970 | u16 pipenum) | |
971 | { | |
972 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
973 | enable_irq_empty(r8a66597, pipenum); | |
974 | else | |
975 | enable_irq_ready(r8a66597, pipenum); | |
976 | ||
977 | if (!usb_pipeisoc(urb->pipe)) | |
978 | enable_irq_nrdy(r8a66597, pipenum); | |
979 | } | |
980 | ||
981 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
982 | { | |
983 | disable_irq_ready(r8a66597, pipenum); | |
984 | disable_irq_nrdy(r8a66597, pipenum); | |
985 | } | |
986 | ||
54d0be9e YS |
987 | static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) |
988 | { | |
989 | mod_timer(&r8a66597->rh_timer, | |
990 | jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); | |
991 | } | |
992 | ||
993 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, | |
994 | int connect) | |
995 | { | |
996 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
997 | ||
998 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
999 | rh->scount = R8A66597_MAX_SAMPLING; | |
1000 | if (connect) | |
749da5f8 | 1001 | rh->port |= USB_PORT_STAT_CONNECTION; |
54d0be9e | 1002 | else |
749da5f8 AS |
1003 | rh->port &= ~USB_PORT_STAT_CONNECTION; |
1004 | rh->port |= USB_PORT_STAT_C_CONNECTION << 16; | |
54d0be9e YS |
1005 | |
1006 | r8a66597_root_hub_start_polling(r8a66597); | |
1007 | } | |
1008 | ||
5d304358 | 1009 | /* this function must be called with interrupt disabled */ |
29fab0cd YS |
1010 | static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, |
1011 | u16 syssts) | |
2c940db2 PM |
1012 | __releases(r8a66597->lock) |
1013 | __acquires(r8a66597->lock) | |
5d304358 | 1014 | { |
29fab0cd | 1015 | if (syssts == SE0) { |
54d0be9e | 1016 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); |
29fab0cd | 1017 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); |
1e6159f8 YS |
1018 | } else { |
1019 | if (syssts == FS_JSTS) | |
1020 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
1021 | else if (syssts == LS_JSTS) | |
1022 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
29fab0cd | 1023 | |
1e6159f8 YS |
1024 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
1025 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); | |
29fab0cd | 1026 | |
1e6159f8 YS |
1027 | if (r8a66597->bus_suspended) |
1028 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1029 | } | |
e1e609be | 1030 | |
2c940db2 | 1031 | spin_unlock(&r8a66597->lock); |
1e6159f8 | 1032 | usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597)); |
2c940db2 | 1033 | spin_lock(&r8a66597->lock); |
5d304358 YS |
1034 | } |
1035 | ||
1036 | /* this function must be called with interrupt disabled */ | |
1037 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
1038 | { | |
1039 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
1040 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1041 | ||
288ead45 | 1042 | rh->port &= ~(USB_PORT_STAT_HIGH_SPEED | USB_PORT_STAT_LOW_SPEED); |
5d304358 | 1043 | if (speed == HSMODE) |
288ead45 | 1044 | rh->port |= USB_PORT_STAT_HIGH_SPEED; |
5d304358 | 1045 | else if (speed == LSMODE) |
288ead45 | 1046 | rh->port |= USB_PORT_STAT_LOW_SPEED; |
5d304358 | 1047 | |
a5797a68 | 1048 | rh->port &= ~USB_PORT_STAT_RESET; |
749da5f8 | 1049 | rh->port |= USB_PORT_STAT_ENABLE; |
5d304358 YS |
1050 | } |
1051 | ||
1052 | /* this function must be called with interrupt disabled */ | |
1053 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
1054 | { | |
1055 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
1056 | ||
5d304358 | 1057 | disable_r8a66597_pipe_all(r8a66597, dev); |
d8359334 | 1058 | free_usb_address(r8a66597, dev, 0); |
5d304358 | 1059 | |
54d0be9e | 1060 | start_root_hub_sampling(r8a66597, port, 0); |
5d304358 YS |
1061 | } |
1062 | ||
1063 | /* this function must be called with interrupt disabled */ | |
1064 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
1065 | struct r8a66597_td *td) | |
1066 | { | |
1067 | int i; | |
fd05e720 | 1068 | __le16 *p = (__le16 *)td->urb->setup_packet; |
5d304358 YS |
1069 | unsigned long setup_addr = USBREQ; |
1070 | ||
1071 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
1072 | DCPMAXP); | |
e294531d | 1073 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
1074 | |
1075 | for (i = 0; i < 4; i++) { | |
fd05e720 | 1076 | r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); |
5d304358 YS |
1077 | setup_addr += 2; |
1078 | } | |
1079 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
1080 | } | |
1081 | ||
1082 | /* this function must be called with interrupt disabled */ | |
1083 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
1084 | struct r8a66597_td *td) | |
1085 | { | |
1086 | struct urb *urb = td->urb; | |
1087 | ||
1088 | if (usb_pipecontrol(urb->pipe)) { | |
1089 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1090 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1091 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1092 | if (urb->actual_length == 0) { | |
1093 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1094 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1095 | } | |
1096 | pipe_irq_disable(r8a66597, td->pipenum); | |
1097 | pipe_start(r8a66597, td->pipe); | |
1098 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1099 | } else { | |
1100 | if (urb->actual_length == 0) { | |
1101 | pipe_irq_disable(r8a66597, td->pipenum); | |
1102 | pipe_setting(r8a66597, td); | |
1103 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 1104 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1105 | |
1106 | if (td->pipe->pipetre) { | |
1107 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 1108 | td->pipe->pipetre); |
5d304358 | 1109 | r8a66597_write(r8a66597, |
dfa5ec79 JL |
1110 | DIV_ROUND_UP |
1111 | (urb->transfer_buffer_length, | |
1112 | td->maxpacket), | |
e294531d | 1113 | td->pipe->pipetrn); |
5d304358 | 1114 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 1115 | td->pipe->pipetre); |
5d304358 YS |
1116 | } |
1117 | ||
1118 | pipe_start(r8a66597, td->pipe); | |
1119 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1120 | } | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | /* this function must be called with interrupt disabled */ | |
1125 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
1126 | struct r8a66597_td *td) | |
1127 | { | |
1128 | u16 tmp; | |
1129 | struct urb *urb = td->urb; | |
1130 | ||
1131 | if (usb_pipecontrol(urb->pipe)) { | |
1132 | pipe_stop(r8a66597, td->pipe); | |
1133 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1134 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1135 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1136 | if (urb->actual_length == 0) { | |
1137 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1138 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1139 | } | |
1140 | } else { | |
1141 | if (urb->actual_length == 0) | |
1142 | pipe_setting(r8a66597, td); | |
1143 | if (td->pipe->pipetre) | |
1144 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
1145 | } | |
e294531d | 1146 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1147 | |
1148 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1149 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1150 | if (unlikely((tmp & FRDY) == 0)) | |
1151 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1152 | else | |
1153 | packet_write(r8a66597, td->pipenum); | |
1154 | pipe_start(r8a66597, td->pipe); | |
1155 | } | |
1156 | ||
1157 | /* this function must be called with interrupt disabled */ | |
1158 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1159 | struct r8a66597_td *td) | |
1160 | { | |
1161 | struct urb *urb = td->urb; | |
1162 | ||
1163 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1164 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1165 | |
1166 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1167 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1168 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1169 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d | 1170 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
9424ea29 | 1171 | r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); |
5d304358 YS |
1172 | enable_irq_empty(r8a66597, 0); |
1173 | } else { | |
1174 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1175 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1176 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1177 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1178 | enable_irq_ready(r8a66597, 0); |
1179 | } | |
1180 | enable_irq_nrdy(r8a66597, 0); | |
1181 | pipe_start(r8a66597, td->pipe); | |
1182 | } | |
1183 | ||
e3a09051 YS |
1184 | static int is_set_address(unsigned char *setup_packet) |
1185 | { | |
1186 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1187 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1188 | return 1; | |
1189 | else | |
1190 | return 0; | |
1191 | } | |
1192 | ||
5d304358 YS |
1193 | /* this function must be called with interrupt disabled */ |
1194 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1195 | { | |
1196 | BUG_ON(!td); | |
1197 | ||
1198 | switch (td->type) { | |
1199 | case USB_PID_SETUP: | |
e3a09051 | 1200 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1201 | td->set_address = 1; |
1202 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1203 | td->urb); | |
1204 | if (td->urb->setup_packet[2] == 0) | |
1205 | return -EPIPE; | |
1206 | } | |
1207 | prepare_setup_packet(r8a66597, td); | |
1208 | break; | |
1209 | case USB_PID_IN: | |
1210 | prepare_packet_read(r8a66597, td); | |
1211 | break; | |
1212 | case USB_PID_OUT: | |
1213 | prepare_packet_write(r8a66597, td); | |
1214 | break; | |
1215 | case USB_PID_ACK: | |
1216 | prepare_status_packet(r8a66597, td); | |
1217 | break; | |
1218 | default: | |
802f389a | 1219 | printk(KERN_ERR "r8a66597: invalid type.\n"); |
5d304358 YS |
1220 | break; |
1221 | } | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1227 | { | |
1228 | if (usb_pipeisoc(urb->pipe)) { | |
1229 | if (urb->number_of_packets == td->iso_cnt) | |
1230 | return 1; | |
1231 | } | |
1232 | ||
1233 | /* control or bulk or interrupt */ | |
1234 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1235 | (td->short_packet) || (td->zero_packet)) | |
1236 | return 1; | |
1237 | ||
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | /* this function must be called with interrupt disabled */ | |
1242 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1243 | { | |
1244 | unsigned long time; | |
1245 | ||
1246 | BUG_ON(!td); | |
1247 | ||
1248 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1249 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1250 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1251 | switch (usb_pipetype(td->urb->pipe)) { | |
1252 | case PIPE_INTERRUPT: | |
1253 | case PIPE_ISOCHRONOUS: | |
1254 | time = 30; | |
1255 | break; | |
1256 | default: | |
dd14a3e9 | 1257 | time = 50; |
5d304358 YS |
1258 | break; |
1259 | } | |
1260 | ||
8e4e276a | 1261 | mod_timer(&r8a66597->timers[td->pipenum].td, |
5d304358 YS |
1262 | jiffies + msecs_to_jiffies(time)); |
1263 | } | |
1264 | } | |
1265 | ||
1266 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1267 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1268 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1269 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1270 | { |
1271 | int restart = 0; | |
1272 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1273 | ||
1274 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1275 | ||
1276 | if (likely(td)) { | |
888fda47 | 1277 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1278 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1279 | ||
1280 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1281 | list_del(&td->queue); | |
1282 | kfree(td); | |
1283 | } | |
1284 | ||
1285 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1286 | restart = 1; | |
1287 | ||
1288 | if (likely(urb)) { | |
1289 | if (usb_pipeisoc(urb->pipe)) | |
1290 | urb->start_frame = r8a66597_get_frame(hcd); | |
1291 | ||
2717568e | 1292 | r8a66597_urb_done(r8a66597, urb, status); |
5d304358 YS |
1293 | } |
1294 | ||
1295 | if (restart) { | |
1296 | td = r8a66597_get_td(r8a66597, pipenum); | |
1297 | if (unlikely(!td)) | |
1298 | return; | |
1299 | ||
1300 | start_transfer(r8a66597, td); | |
1301 | set_td_timer(r8a66597, td); | |
1302 | } | |
1303 | } | |
1304 | ||
5d304358 YS |
1305 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1306 | { | |
1307 | u16 tmp; | |
1308 | int rcv_len, bufsize, urb_len, size; | |
1309 | u16 *buf; | |
1310 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1311 | struct urb *urb; | |
1312 | int finish = 0; | |
dfd1e537 | 1313 | int status = 0; |
5d304358 YS |
1314 | |
1315 | if (unlikely(!td)) | |
1316 | return; | |
1317 | urb = td->urb; | |
1318 | ||
1319 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1320 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1321 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1322 | pipe_stop(r8a66597, td->pipe); |
1323 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1324 | printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); |
888fda47 | 1325 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1326 | return; |
1327 | } | |
1328 | ||
1329 | /* prepare parameters */ | |
1330 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1331 | if (usb_pipeisoc(urb->pipe)) { |
1332 | buf = (u16 *)(urb->transfer_buffer + | |
1333 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1334 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1335 | } else { | |
1336 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1337 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1338 | } | |
dfd1e537 AS |
1339 | bufsize = min(urb_len, (int) td->maxpacket); |
1340 | if (rcv_len <= bufsize) { | |
1341 | size = rcv_len; | |
1342 | } else { | |
1343 | size = bufsize; | |
1344 | status = -EOVERFLOW; | |
1345 | finish = 1; | |
1346 | } | |
5d304358 YS |
1347 | |
1348 | /* update parameters */ | |
1349 | urb->actual_length += size; | |
1350 | if (rcv_len == 0) | |
1351 | td->zero_packet = 1; | |
dfd1e537 | 1352 | if (rcv_len < bufsize) { |
5d304358 | 1353 | td->short_packet = 1; |
5d304358 YS |
1354 | } |
1355 | if (usb_pipeisoc(urb->pipe)) { | |
1356 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1357 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1358 | td->iso_cnt++; |
dfd1e537 | 1359 | finish = 0; |
5d304358 YS |
1360 | } |
1361 | ||
1362 | /* check transfer finish */ | |
b0d9efba | 1363 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1364 | pipe_stop(r8a66597, td->pipe); |
1365 | pipe_irq_disable(r8a66597, pipenum); | |
1366 | finish = 1; | |
1367 | } | |
1368 | ||
1369 | /* read fifo */ | |
1370 | if (urb->transfer_buffer) { | |
1371 | if (size == 0) | |
1372 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1373 | else | |
1374 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1375 | buf, size); | |
1376 | } | |
1377 | ||
888fda47 AS |
1378 | if (finish && pipenum != 0) |
1379 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1380 | } |
1381 | ||
1382 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1383 | { | |
1384 | u16 tmp; | |
1385 | int bufsize, size; | |
1386 | u16 *buf; | |
1387 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1388 | struct urb *urb; | |
1389 | ||
1390 | if (unlikely(!td)) | |
1391 | return; | |
1392 | urb = td->urb; | |
1393 | ||
1394 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1395 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1396 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1397 | pipe_stop(r8a66597, td->pipe); |
1398 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1399 | printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); |
888fda47 | 1400 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1401 | return; |
1402 | } | |
1403 | ||
1404 | /* prepare parameters */ | |
1405 | bufsize = td->maxpacket; | |
1406 | if (usb_pipeisoc(urb->pipe)) { | |
1407 | buf = (u16 *)(urb->transfer_buffer + | |
1408 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1409 | size = min(bufsize, | |
1410 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1411 | } else { | |
1412 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
16e2e5f6 | 1413 | size = min_t(u32, bufsize, |
5d304358 YS |
1414 | urb->transfer_buffer_length - urb->actual_length); |
1415 | } | |
1416 | ||
1417 | /* write fifo */ | |
1418 | if (pipenum > 0) | |
e294531d | 1419 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 | 1420 | if (urb->transfer_buffer) { |
f2e9039a | 1421 | r8a66597_write_fifo(r8a66597, td->pipe, buf, size); |
5d304358 YS |
1422 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) |
1423 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1424 | } | |
1425 | ||
1426 | /* update parameters */ | |
1427 | urb->actual_length += size; | |
1428 | if (usb_pipeisoc(urb->pipe)) { | |
1429 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1430 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1431 | td->iso_cnt++; | |
1432 | } | |
1433 | ||
1434 | /* check transfer finish */ | |
1435 | if (check_transfer_finish(td, urb)) { | |
1436 | disable_irq_ready(r8a66597, pipenum); | |
1437 | enable_irq_empty(r8a66597, pipenum); | |
1438 | if (!usb_pipeisoc(urb->pipe)) | |
1439 | enable_irq_nrdy(r8a66597, pipenum); | |
1440 | } else | |
1441 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1442 | } | |
1443 | ||
1444 | ||
888fda47 | 1445 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1446 | { |
1447 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1448 | struct urb *urb; | |
1449 | u8 finish = 0; | |
1450 | ||
1451 | if (unlikely(!td)) | |
1452 | return; | |
1453 | urb = td->urb; | |
1454 | ||
1455 | switch (td->type) { | |
1456 | case USB_PID_IN: | |
1457 | case USB_PID_OUT: | |
5d304358 YS |
1458 | if (check_transfer_finish(td, urb)) |
1459 | td->type = USB_PID_ACK; | |
1460 | break; | |
1461 | case USB_PID_SETUP: | |
eb231054 | 1462 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1463 | td->type = USB_PID_ACK; |
eb231054 | 1464 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1465 | td->type = USB_PID_OUT; |
1466 | else | |
1467 | td->type = USB_PID_IN; | |
1468 | break; | |
1469 | case USB_PID_ACK: | |
1470 | finish = 1; | |
5d304358 YS |
1471 | break; |
1472 | } | |
1473 | ||
888fda47 AS |
1474 | if (finish || status != 0 || urb->unlinked) |
1475 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1476 | else |
1477 | start_transfer(r8a66597, td); | |
1478 | } | |
1479 | ||
888fda47 | 1480 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1481 | { |
1482 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1483 | ||
888fda47 | 1484 | if (td) { |
5d304358 YS |
1485 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1486 | ||
1487 | if (pid == PID_NAK) | |
888fda47 | 1488 | return -ECONNRESET; |
5d304358 | 1489 | else |
888fda47 | 1490 | return -EPIPE; |
5d304358 | 1491 | } |
888fda47 | 1492 | return 0; |
5d304358 YS |
1493 | } |
1494 | ||
1495 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1496 | { | |
1497 | u16 check; | |
1498 | u16 pipenum; | |
1499 | u16 mask; | |
1500 | struct r8a66597_td *td; | |
1501 | ||
1502 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1503 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1504 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1505 | if (mask & BRDY0) { |
1506 | td = r8a66597_get_td(r8a66597, 0); | |
1507 | if (td && td->type == USB_PID_IN) | |
1508 | packet_read(r8a66597, 0); | |
1509 | else | |
1510 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1511 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1512 | } |
1513 | ||
1514 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1515 | check = 1 << pipenum; | |
1516 | if (mask & check) { | |
1517 | td = r8a66597_get_td(r8a66597, pipenum); | |
1518 | if (unlikely(!td)) | |
1519 | continue; | |
1520 | ||
1521 | if (td->type == USB_PID_IN) | |
1522 | packet_read(r8a66597, pipenum); | |
1523 | else if (td->type == USB_PID_OUT) | |
1524 | packet_write(r8a66597, pipenum); | |
1525 | } | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1530 | { | |
1531 | u16 tmp; | |
1532 | u16 check; | |
1533 | u16 pipenum; | |
1534 | u16 mask; | |
1535 | struct r8a66597_td *td; | |
1536 | ||
1537 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1538 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1539 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1540 | if (mask & BEMP0) { |
1541 | cfifo_change(r8a66597, 0); | |
1542 | td = r8a66597_get_td(r8a66597, 0); | |
1543 | if (td && td->type != USB_PID_OUT) | |
1544 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1545 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1546 | } |
1547 | ||
1548 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1549 | check = 1 << pipenum; | |
1550 | if (mask & check) { | |
1551 | struct r8a66597_td *td; | |
1552 | td = r8a66597_get_td(r8a66597, pipenum); | |
1553 | if (unlikely(!td)) | |
1554 | continue; | |
1555 | ||
1556 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1557 | if ((tmp & INBUFM) == 0) { | |
1558 | disable_irq_empty(r8a66597, pipenum); | |
1559 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1560 | finish_request(r8a66597, td, pipenum, td->urb, |
1561 | 0); | |
5d304358 YS |
1562 | } |
1563 | } | |
1564 | } | |
1565 | } | |
1566 | ||
1567 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1568 | { | |
1569 | u16 check; | |
1570 | u16 pipenum; | |
1571 | u16 mask; | |
888fda47 | 1572 | int status; |
5d304358 YS |
1573 | |
1574 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1575 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1576 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1577 | if (mask & NRDY0) { |
1578 | cfifo_change(r8a66597, 0); | |
888fda47 | 1579 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1580 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1581 | check_next_phase(r8a66597, status); |
5d304358 YS |
1582 | } |
1583 | ||
1584 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1585 | check = 1 << pipenum; | |
1586 | if (mask & check) { | |
1587 | struct r8a66597_td *td; | |
1588 | td = r8a66597_get_td(r8a66597, pipenum); | |
1589 | if (unlikely(!td)) | |
1590 | continue; | |
1591 | ||
888fda47 | 1592 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1593 | pipe_irq_disable(r8a66597, pipenum); |
1594 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1595 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1596 | } |
1597 | } | |
1598 | } | |
1599 | ||
5d304358 YS |
1600 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) |
1601 | { | |
1602 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1603 | u16 intsts0, intsts1, intsts2; | |
1604 | u16 intenb0, intenb1, intenb2; | |
1605 | u16 mask0, mask1, mask2; | |
888fda47 | 1606 | int status; |
5d304358 YS |
1607 | |
1608 | spin_lock(&r8a66597->lock); | |
1609 | ||
1610 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1611 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1612 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1613 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1614 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1615 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1616 | ||
1617 | mask2 = intsts2 & intenb2; | |
1618 | mask1 = intsts1 & intenb1; | |
1619 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1620 | if (mask2) { | |
1621 | if (mask2 & ATTCH) { | |
e294531d | 1622 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1623 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1624 | ||
1625 | /* start usb bus sampling */ | |
54d0be9e | 1626 | start_root_hub_sampling(r8a66597, 1, 1); |
5d304358 YS |
1627 | } |
1628 | if (mask2 & DTCH) { | |
e294531d | 1629 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1630 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1631 | r8a66597_usb_disconnect(r8a66597, 1); | |
1632 | } | |
e1e609be YS |
1633 | if (mask2 & BCHG) { |
1634 | r8a66597_write(r8a66597, ~BCHG, INTSTS2); | |
1635 | r8a66597_bclr(r8a66597, BCHGE, INTENB2); | |
1636 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1637 | } | |
5d304358 YS |
1638 | } |
1639 | ||
1640 | if (mask1) { | |
1641 | if (mask1 & ATTCH) { | |
e294531d | 1642 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1643 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1644 | ||
1645 | /* start usb bus sampling */ | |
54d0be9e | 1646 | start_root_hub_sampling(r8a66597, 0, 1); |
5d304358 YS |
1647 | } |
1648 | if (mask1 & DTCH) { | |
e294531d | 1649 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1650 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1651 | r8a66597_usb_disconnect(r8a66597, 0); | |
1652 | } | |
e1e609be YS |
1653 | if (mask1 & BCHG) { |
1654 | r8a66597_write(r8a66597, ~BCHG, INTSTS1); | |
1655 | r8a66597_bclr(r8a66597, BCHGE, INTENB1); | |
1656 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1657 | } | |
1658 | ||
5d304358 | 1659 | if (mask1 & SIGN) { |
e294531d | 1660 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1661 | status = get_urb_error(r8a66597, 0); |
1662 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1663 | } |
1664 | if (mask1 & SACK) { | |
e294531d | 1665 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1666 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1667 | } |
1668 | } | |
1669 | if (mask0) { | |
1670 | if (mask0 & BRDY) | |
1671 | irq_pipe_ready(r8a66597); | |
1672 | if (mask0 & BEMP) | |
1673 | irq_pipe_empty(r8a66597); | |
1674 | if (mask0 & NRDY) | |
1675 | irq_pipe_nrdy(r8a66597); | |
1676 | } | |
1677 | ||
1678 | spin_unlock(&r8a66597->lock); | |
1679 | return IRQ_HANDLED; | |
1680 | } | |
1681 | ||
1682 | /* this function must be called with interrupt disabled */ | |
1683 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1684 | { | |
1685 | u16 tmp; | |
1686 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1687 | ||
749da5f8 | 1688 | if (rh->port & USB_PORT_STAT_RESET) { |
5d304358 YS |
1689 | unsigned long dvstctr_reg = get_dvstctr_reg(port); |
1690 | ||
1691 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1692 | if ((tmp & USBRST) == USBRST) { | |
1693 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1694 | dvstctr_reg); | |
29fab0cd | 1695 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1696 | } else |
1697 | r8a66597_usb_connect(r8a66597, port); | |
1698 | } | |
1699 | ||
749da5f8 | 1700 | if (!(rh->port & USB_PORT_STAT_CONNECTION)) { |
29fab0cd YS |
1701 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); |
1702 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
1703 | } | |
1704 | ||
5d304358 YS |
1705 | if (rh->scount > 0) { |
1706 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1707 | if (tmp == rh->old_syssts) { | |
1708 | rh->scount--; | |
29fab0cd YS |
1709 | if (rh->scount == 0) |
1710 | r8a66597_check_syssts(r8a66597, port, tmp); | |
1711 | else | |
1712 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1713 | } else { |
1714 | rh->scount = R8A66597_MAX_SAMPLING; | |
1715 | rh->old_syssts = tmp; | |
29fab0cd | 1716 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1717 | } |
1718 | } | |
1719 | } | |
1720 | ||
8e4e276a | 1721 | static void r8a66597_interval_timer(struct timer_list *t) |
6d879107 | 1722 | { |
8e4e276a KC |
1723 | struct r8a66597_timers *timers = from_timer(timers, t, interval); |
1724 | struct r8a66597 *r8a66597 = timers->r8a66597; | |
6d879107 YS |
1725 | unsigned long flags; |
1726 | u16 pipenum; | |
1727 | struct r8a66597_td *td; | |
1728 | ||
1729 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1730 | ||
1731 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1732 | if (!(r8a66597->interval_map & (1 << pipenum))) | |
1733 | continue; | |
8e4e276a | 1734 | if (timer_pending(&r8a66597->timers[pipenum].interval)) |
6d879107 YS |
1735 | continue; |
1736 | ||
1737 | td = r8a66597_get_td(r8a66597, pipenum); | |
1738 | if (td) | |
1739 | start_transfer(r8a66597, td); | |
1740 | } | |
1741 | ||
1742 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1743 | } | |
1744 | ||
8e4e276a | 1745 | static void r8a66597_td_timer(struct timer_list *t) |
5d304358 | 1746 | { |
8e4e276a KC |
1747 | struct r8a66597_timers *timers = from_timer(timers, t, td); |
1748 | struct r8a66597 *r8a66597 = timers->r8a66597; | |
5d304358 YS |
1749 | unsigned long flags; |
1750 | u16 pipenum; | |
1751 | struct r8a66597_td *td, *new_td = NULL; | |
1752 | struct r8a66597_pipe *pipe; | |
1753 | ||
1754 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1755 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1756 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1757 | continue; | |
8e4e276a | 1758 | if (timer_pending(&r8a66597->timers[pipenum].td)) |
5d304358 YS |
1759 | continue; |
1760 | ||
1761 | td = r8a66597_get_td(r8a66597, pipenum); | |
1762 | if (!td) { | |
1763 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1764 | continue; | |
1765 | } | |
1766 | ||
1767 | if (td->urb->actual_length) { | |
1768 | set_td_timer(r8a66597, td); | |
1769 | break; | |
1770 | } | |
1771 | ||
1772 | pipe = td->pipe; | |
1773 | pipe_stop(r8a66597, pipe); | |
1774 | ||
1f873d85 | 1775 | /* Select a different address or endpoint */ |
5d304358 YS |
1776 | new_td = td; |
1777 | do { | |
1778 | list_move_tail(&new_td->queue, | |
1779 | &r8a66597->pipe_queue[pipenum]); | |
1780 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1781 | if (!new_td) { | |
1782 | new_td = td; | |
1783 | break; | |
1784 | } | |
1f873d85 CB |
1785 | } while (td != new_td && td->address == new_td->address && |
1786 | td->pipe->info.epnum == new_td->pipe->info.epnum); | |
5d304358 YS |
1787 | |
1788 | start_transfer(r8a66597, new_td); | |
1789 | ||
1790 | if (td == new_td) | |
1791 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1792 | else | |
1793 | set_td_timer(r8a66597, new_td); | |
1794 | break; | |
1795 | } | |
1796 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1797 | } | |
1798 | ||
e99e88a9 | 1799 | static void r8a66597_timer(struct timer_list *t) |
5d304358 | 1800 | { |
e99e88a9 | 1801 | struct r8a66597 *r8a66597 = from_timer(r8a66597, t, rh_timer); |
5d304358 | 1802 | unsigned long flags; |
58639646 | 1803 | int port; |
5d304358 YS |
1804 | |
1805 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1806 | ||
719a72b7 | 1807 | for (port = 0; port < r8a66597->max_root_hub; port++) |
58639646 | 1808 | r8a66597_root_hub_control(r8a66597, port); |
5d304358 YS |
1809 | |
1810 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1811 | } | |
1812 | ||
1813 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1814 | { | |
1815 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1816 | ||
1817 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1818 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1819 | return 1; | |
1820 | else | |
1821 | return 0; | |
1822 | } | |
1823 | ||
1824 | static int r8a66597_start(struct usb_hcd *hcd) | |
1825 | { | |
1826 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1827 | |
1828 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1829 | return enable_controller(r8a66597); |
5d304358 YS |
1830 | } |
1831 | ||
1832 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1833 | { | |
1834 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1835 | ||
1836 | disable_controller(r8a66597); | |
1837 | } | |
1838 | ||
1839 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1840 | { | |
1841 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1842 | u16 root_port, hub_port; | |
1843 | ||
1844 | if (usb_address == 0) { | |
719a72b7 | 1845 | get_port_number(r8a66597, urb->dev->devpath, |
5d304358 YS |
1846 | &root_port, &hub_port); |
1847 | set_devadd_reg(r8a66597, 0, | |
1848 | get_r8a66597_usb_speed(urb->dev->speed), | |
1849 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1850 | hub_port, root_port); | |
1851 | } | |
1852 | } | |
1853 | ||
1854 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1855 | struct urb *urb, | |
e294531d | 1856 | struct usb_host_endpoint *hep) |
5d304358 YS |
1857 | { |
1858 | struct r8a66597_td *td; | |
1859 | u16 pipenum; | |
1860 | ||
e294531d | 1861 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1862 | if (td == NULL) |
1863 | return NULL; | |
1864 | ||
1865 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1866 | td->pipenum = pipenum; | |
1867 | td->pipe = hep->hcpriv; | |
1868 | td->urb = urb; | |
1869 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1870 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1871 | !usb_pipein(urb->pipe)); | |
1872 | if (usb_pipecontrol(urb->pipe)) | |
1873 | td->type = USB_PID_SETUP; | |
1874 | else if (usb_pipein(urb->pipe)) | |
1875 | td->type = USB_PID_IN; | |
1876 | else | |
1877 | td->type = USB_PID_OUT; | |
1878 | INIT_LIST_HEAD(&td->queue); | |
1879 | ||
1880 | return td; | |
1881 | } | |
1882 | ||
1883 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1884 | struct urb *urb, |
1885 | gfp_t mem_flags) | |
1886 | { | |
e9df41c5 | 1887 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1888 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1889 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1890 | int ret, request = 0; |
5d304358 YS |
1891 | unsigned long flags; |
1892 | ||
1893 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1894 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1895 | ret = -ENODEV; | |
e9df41c5 | 1896 | goto error_not_linked; |
5d304358 YS |
1897 | } |
1898 | ||
e9df41c5 AS |
1899 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1900 | if (ret) | |
1901 | goto error_not_linked; | |
1902 | ||
5d304358 | 1903 | if (!hep->hcpriv) { |
e294531d YS |
1904 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1905 | GFP_ATOMIC); | |
5d304358 YS |
1906 | if (!hep->hcpriv) { |
1907 | ret = -ENOMEM; | |
1908 | goto error; | |
1909 | } | |
1910 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1911 | if (usb_pipeendpoint(urb->pipe)) | |
1912 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1913 | } | |
1914 | ||
1915 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1916 | init_pipe_config(r8a66597, urb); | |
1917 | ||
1918 | set_address_zero(r8a66597, urb); | |
e294531d | 1919 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1920 | if (td == NULL) { |
1921 | ret = -ENOMEM; | |
1922 | goto error; | |
1923 | } | |
1924 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1925 | request = 1; | |
1926 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1927 | urb->hcpriv = td; |
5d304358 YS |
1928 | |
1929 | if (request) { | |
6d879107 YS |
1930 | if (td->pipe->info.timer_interval) { |
1931 | r8a66597->interval_map |= 1 << td->pipenum; | |
8e4e276a | 1932 | mod_timer(&r8a66597->timers[td->pipenum].interval, |
6d879107 YS |
1933 | jiffies + msecs_to_jiffies( |
1934 | td->pipe->info.timer_interval)); | |
1935 | } else { | |
1936 | ret = start_transfer(r8a66597, td); | |
1937 | if (ret < 0) { | |
1938 | list_del(&td->queue); | |
1939 | kfree(td); | |
1940 | } | |
5d304358 YS |
1941 | } |
1942 | } else | |
1943 | set_td_timer(r8a66597, td); | |
1944 | ||
1945 | error: | |
e9df41c5 AS |
1946 | if (ret) |
1947 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1948 | error_not_linked: | |
5d304358 YS |
1949 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1950 | return ret; | |
1951 | } | |
1952 | ||
e9df41c5 AS |
1953 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1954 | int status) | |
5d304358 YS |
1955 | { |
1956 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1957 | struct r8a66597_td *td; | |
1958 | unsigned long flags; | |
e9df41c5 | 1959 | int rc; |
5d304358 YS |
1960 | |
1961 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1962 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1963 | if (rc) | |
1964 | goto done; | |
1965 | ||
5d304358 YS |
1966 | if (urb->hcpriv) { |
1967 | td = urb->hcpriv; | |
1968 | pipe_stop(r8a66597, td->pipe); | |
1969 | pipe_irq_disable(r8a66597, td->pipenum); | |
1970 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1971 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1972 | } |
e9df41c5 | 1973 | done: |
5d304358 | 1974 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1975 | return rc; |
5d304358 YS |
1976 | } |
1977 | ||
1978 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1979 | struct usb_host_endpoint *hep) | |
c85400f8 JJB |
1980 | __acquires(r8a66597->lock) |
1981 | __releases(r8a66597->lock) | |
5d304358 YS |
1982 | { |
1983 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1984 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1985 | struct r8a66597_td *td; | |
1986 | struct urb *urb = NULL; | |
1987 | u16 pipenum; | |
1988 | unsigned long flags; | |
1989 | ||
1990 | if (pipe == NULL) | |
1991 | return; | |
1992 | pipenum = pipe->info.pipenum; | |
1993 | ||
c85400f8 | 1994 | spin_lock_irqsave(&r8a66597->lock, flags); |
5d304358 YS |
1995 | if (pipenum == 0) { |
1996 | kfree(hep->hcpriv); | |
1997 | hep->hcpriv = NULL; | |
c85400f8 | 1998 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
5d304358 YS |
1999 | return; |
2000 | } | |
2001 | ||
5d304358 YS |
2002 | pipe_stop(r8a66597, pipe); |
2003 | pipe_irq_disable(r8a66597, pipenum); | |
2004 | disable_irq_empty(r8a66597, pipenum); | |
2005 | td = r8a66597_get_td(r8a66597, pipenum); | |
2006 | if (td) | |
2007 | urb = td->urb; | |
888fda47 | 2008 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
2009 | kfree(hep->hcpriv); |
2010 | hep->hcpriv = NULL; | |
2011 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2012 | } | |
2013 | ||
2014 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
2015 | { | |
2016 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2017 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
2018 | } | |
2019 | ||
2020 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
2021 | { | |
2022 | int chix; | |
ff823c79 | 2023 | struct usb_device *childdev; |
5d304358 YS |
2024 | |
2025 | if (udev->state == USB_STATE_CONFIGURED && | |
2026 | udev->parent && udev->parent->devnum > 1 && | |
2027 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
2028 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
2029 | ||
969ddcfc AS |
2030 | usb_hub_for_each_child(udev, chix, childdev) |
2031 | collect_usb_address_map(childdev, map); | |
5d304358 YS |
2032 | } |
2033 | ||
2034 | /* this function must be called with interrupt disabled */ | |
2035 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
2036 | int addr) | |
2037 | { | |
2038 | struct r8a66597_device *dev; | |
2039 | struct list_head *list = &r8a66597->child_device; | |
2040 | ||
2041 | list_for_each_entry(dev, list, device_list) { | |
5d304358 YS |
2042 | if (dev->usb_address != addr) |
2043 | continue; | |
2044 | ||
2045 | return dev; | |
2046 | } | |
2047 | ||
802f389a | 2048 | printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); |
5d304358 YS |
2049 | return NULL; |
2050 | } | |
2051 | ||
2052 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
2053 | struct usb_device *root_hub, | |
2054 | unsigned long *map) | |
2055 | { | |
2056 | int i, j, addr; | |
2057 | unsigned long diff; | |
2058 | unsigned long flags; | |
2059 | ||
2060 | for (i = 0; i < 4; i++) { | |
2061 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
2062 | if (!diff) | |
2063 | continue; | |
2064 | ||
2065 | for (j = 0; j < 32; j++) { | |
2066 | if (!(diff & (1 << j))) | |
2067 | continue; | |
2068 | ||
2069 | addr = i * 32 + j; | |
2070 | if (map[i] & (1 << j)) | |
2071 | set_child_connect_map(r8a66597, addr); | |
2072 | else { | |
2073 | struct r8a66597_device *dev; | |
2074 | ||
2075 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2076 | dev = get_r8a66597_device(r8a66597, addr); | |
2077 | disable_r8a66597_pipe_all(r8a66597, dev); | |
d8359334 | 2078 | free_usb_address(r8a66597, dev, 0); |
5d304358 YS |
2079 | put_child_connect_map(r8a66597, addr); |
2080 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2081 | } | |
2082 | } | |
2083 | } | |
2084 | } | |
2085 | ||
2086 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
2087 | struct usb_hcd *hcd) | |
2088 | { | |
2089 | struct usb_bus *bus; | |
2090 | unsigned long now_map[4]; | |
2091 | ||
2092 | memset(now_map, 0, sizeof(now_map)); | |
2093 | ||
b1249ab5 | 2094 | mutex_lock(&usb_bus_idr_lock); |
5363de75 HK |
2095 | bus = idr_find(&usb_bus_idr, hcd->self.busnum); |
2096 | if (bus && bus->root_hub) { | |
5d304358 YS |
2097 | collect_usb_address_map(bus->root_hub, now_map); |
2098 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
2099 | } | |
b1249ab5 | 2100 | mutex_unlock(&usb_bus_idr_lock); |
5d304358 YS |
2101 | } |
2102 | ||
2103 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2104 | { | |
2105 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2106 | unsigned long flags; | |
2107 | int i; | |
2108 | ||
2109 | r8a66597_check_detect_child(r8a66597, hcd); | |
2110 | ||
2111 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2112 | ||
2113 | *buf = 0; /* initialize (no change) */ | |
2114 | ||
719a72b7 | 2115 | for (i = 0; i < r8a66597->max_root_hub; i++) { |
5d304358 YS |
2116 | if (r8a66597->root_hub[i].port & 0xffff0000) |
2117 | *buf |= 1 << (i + 1); | |
2118 | } | |
2119 | ||
2120 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2121 | ||
2122 | return (*buf != 0); | |
2123 | } | |
2124 | ||
2125 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
2126 | struct usb_hub_descriptor *desc) | |
2127 | { | |
5e77beaf | 2128 | desc->bDescriptorType = USB_DT_HUB; |
5d304358 | 2129 | desc->bHubContrCurrent = 0; |
719a72b7 | 2130 | desc->bNbrPorts = r8a66597->max_root_hub; |
5d304358 YS |
2131 | desc->bDescLength = 9; |
2132 | desc->bPwrOn2PwrGood = 0; | |
e70480fd SS |
2133 | desc->wHubCharacteristics = |
2134 | cpu_to_le16(HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_NO_OCPM); | |
dbe79bbe JY |
2135 | desc->u.hs.DeviceRemovable[0] = |
2136 | ((1 << r8a66597->max_root_hub) - 1) << 1; | |
2137 | desc->u.hs.DeviceRemovable[1] = ~0; | |
5d304358 YS |
2138 | } |
2139 | ||
2140 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2141 | u16 wIndex, char *buf, u16 wLength) | |
2142 | { | |
2143 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2144 | int ret; | |
2145 | int port = (wIndex & 0x00FF) - 1; | |
2146 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2147 | unsigned long flags; | |
2148 | ||
2149 | ret = 0; | |
2150 | ||
2151 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2152 | switch (typeReq) { | |
2153 | case ClearHubFeature: | |
2154 | case SetHubFeature: | |
2155 | switch (wValue) { | |
2156 | case C_HUB_OVER_CURRENT: | |
2157 | case C_HUB_LOCAL_POWER: | |
2158 | break; | |
2159 | default: | |
2160 | goto error; | |
2161 | } | |
2162 | break; | |
2163 | case ClearPortFeature: | |
719a72b7 | 2164 | if (wIndex > r8a66597->max_root_hub) |
5d304358 YS |
2165 | goto error; |
2166 | if (wLength != 0) | |
2167 | goto error; | |
2168 | ||
2169 | switch (wValue) { | |
2170 | case USB_PORT_FEAT_ENABLE: | |
749da5f8 | 2171 | rh->port &= ~USB_PORT_STAT_POWER; |
5d304358 YS |
2172 | break; |
2173 | case USB_PORT_FEAT_SUSPEND: | |
2174 | break; | |
2175 | case USB_PORT_FEAT_POWER: | |
2176 | r8a66597_port_power(r8a66597, port, 0); | |
2177 | break; | |
2178 | case USB_PORT_FEAT_C_ENABLE: | |
2179 | case USB_PORT_FEAT_C_SUSPEND: | |
2180 | case USB_PORT_FEAT_C_CONNECTION: | |
2181 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2182 | case USB_PORT_FEAT_C_RESET: | |
2183 | break; | |
2184 | default: | |
2185 | goto error; | |
2186 | } | |
2187 | rh->port &= ~(1 << wValue); | |
2188 | break; | |
2189 | case GetHubDescriptor: | |
2190 | r8a66597_hub_descriptor(r8a66597, | |
2191 | (struct usb_hub_descriptor *)buf); | |
2192 | break; | |
2193 | case GetHubStatus: | |
2194 | *buf = 0x00; | |
2195 | break; | |
2196 | case GetPortStatus: | |
719a72b7 | 2197 | if (wIndex > r8a66597->max_root_hub) |
5d304358 | 2198 | goto error; |
fd05e720 | 2199 | *(__le32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2200 | break; |
2201 | case SetPortFeature: | |
719a72b7 | 2202 | if (wIndex > r8a66597->max_root_hub) |
5d304358 YS |
2203 | goto error; |
2204 | if (wLength != 0) | |
2205 | goto error; | |
2206 | ||
2207 | switch (wValue) { | |
2208 | case USB_PORT_FEAT_SUSPEND: | |
2209 | break; | |
2210 | case USB_PORT_FEAT_POWER: | |
2211 | r8a66597_port_power(r8a66597, port, 1); | |
749da5f8 | 2212 | rh->port |= USB_PORT_STAT_POWER; |
5d304358 YS |
2213 | break; |
2214 | case USB_PORT_FEAT_RESET: { | |
2215 | struct r8a66597_device *dev = rh->dev; | |
2216 | ||
749da5f8 | 2217 | rh->port |= USB_PORT_STAT_RESET; |
5d304358 YS |
2218 | |
2219 | disable_r8a66597_pipe_all(r8a66597, dev); | |
d8359334 | 2220 | free_usb_address(r8a66597, dev, 1); |
5d304358 YS |
2221 | |
2222 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2223 | get_dvstctr_reg(port)); | |
2224 | mod_timer(&r8a66597->rh_timer, | |
2225 | jiffies + msecs_to_jiffies(50)); | |
2226 | } | |
2227 | break; | |
2228 | default: | |
2229 | goto error; | |
2230 | } | |
2231 | rh->port |= 1 << wValue; | |
2232 | break; | |
2233 | default: | |
2234 | error: | |
2235 | ret = -EPIPE; | |
2236 | break; | |
2237 | } | |
2238 | ||
2239 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2240 | return ret; | |
2241 | } | |
2242 | ||
e1e609be YS |
2243 | #if defined(CONFIG_PM) |
2244 | static int r8a66597_bus_suspend(struct usb_hcd *hcd) | |
2245 | { | |
2246 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2247 | int port; | |
2248 | ||
167e4925 | 2249 | dev_dbg(&r8a66597->device0.udev->dev, "%s\n", __func__); |
e1e609be | 2250 | |
719a72b7 | 2251 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
e1e609be YS |
2252 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; |
2253 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2254 | ||
749da5f8 | 2255 | if (!(rh->port & USB_PORT_STAT_ENABLE)) |
e1e609be YS |
2256 | continue; |
2257 | ||
167e4925 | 2258 | dev_dbg(&rh->dev->udev->dev, "suspend port = %d\n", port); |
e1e609be | 2259 | r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */ |
749da5f8 | 2260 | rh->port |= USB_PORT_STAT_SUSPEND; |
e1e609be YS |
2261 | |
2262 | if (rh->dev->udev->do_remote_wakeup) { | |
2263 | msleep(3); /* waiting last SOF */ | |
2264 | r8a66597_bset(r8a66597, RWUPE, dvstctr_reg); | |
2265 | r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port)); | |
2266 | r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port)); | |
2267 | } | |
2268 | } | |
2269 | ||
2270 | r8a66597->bus_suspended = 1; | |
2271 | ||
2272 | return 0; | |
2273 | } | |
2274 | ||
2275 | static int r8a66597_bus_resume(struct usb_hcd *hcd) | |
2276 | { | |
2277 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2278 | int port; | |
2279 | ||
167e4925 | 2280 | dev_dbg(&r8a66597->device0.udev->dev, "%s\n", __func__); |
e1e609be | 2281 | |
719a72b7 | 2282 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
e1e609be YS |
2283 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; |
2284 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2285 | ||
749da5f8 | 2286 | if (!(rh->port & USB_PORT_STAT_SUSPEND)) |
e1e609be YS |
2287 | continue; |
2288 | ||
167e4925 | 2289 | dev_dbg(&rh->dev->udev->dev, "resume port = %d\n", port); |
749da5f8 | 2290 | rh->port &= ~USB_PORT_STAT_SUSPEND; |
35da4137 | 2291 | rh->port |= USB_PORT_STAT_C_SUSPEND << 16; |
e1e609be | 2292 | r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); |
7a606ac2 | 2293 | msleep(USB_RESUME_TIMEOUT); |
e1e609be YS |
2294 | r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); |
2295 | } | |
2296 | ||
2297 | return 0; | |
2298 | ||
2299 | } | |
2300 | #else | |
2301 | #define r8a66597_bus_suspend NULL | |
2302 | #define r8a66597_bus_resume NULL | |
2303 | #endif | |
2304 | ||
f5c215e2 | 2305 | static const struct hc_driver r8a66597_hc_driver = { |
5d304358 YS |
2306 | .description = hcd_name, |
2307 | .hcd_priv_size = sizeof(struct r8a66597), | |
2308 | .irq = r8a66597_irq, | |
2309 | ||
2310 | /* | |
2311 | * generic hardware linkage | |
2312 | */ | |
2313 | .flags = HCD_USB2, | |
2314 | ||
2315 | .start = r8a66597_start, | |
2316 | .stop = r8a66597_stop, | |
2317 | ||
2318 | /* | |
2319 | * managing i/o requests and associated device resources | |
2320 | */ | |
2321 | .urb_enqueue = r8a66597_urb_enqueue, | |
2322 | .urb_dequeue = r8a66597_urb_dequeue, | |
2323 | .endpoint_disable = r8a66597_endpoint_disable, | |
2324 | ||
2325 | /* | |
2326 | * periodic schedule support | |
2327 | */ | |
2328 | .get_frame_number = r8a66597_get_frame, | |
2329 | ||
2330 | /* | |
2331 | * root hub support | |
2332 | */ | |
2333 | .hub_status_data = r8a66597_hub_status_data, | |
2334 | .hub_control = r8a66597_hub_control, | |
e1e609be YS |
2335 | .bus_suspend = r8a66597_bus_suspend, |
2336 | .bus_resume = r8a66597_bus_resume, | |
5d304358 YS |
2337 | }; |
2338 | ||
2339 | #if defined(CONFIG_PM) | |
ae1cef6e | 2340 | static int r8a66597_suspend(struct device *dev) |
5d304358 | 2341 | { |
ae1cef6e | 2342 | struct r8a66597 *r8a66597 = dev_get_drvdata(dev); |
e1e609be YS |
2343 | int port; |
2344 | ||
167e4925 | 2345 | dev_dbg(dev, "%s\n", __func__); |
e1e609be YS |
2346 | |
2347 | disable_controller(r8a66597); | |
2348 | ||
719a72b7 | 2349 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
e1e609be YS |
2350 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; |
2351 | ||
2352 | rh->port = 0x00000000; | |
2353 | } | |
2354 | ||
5d304358 YS |
2355 | return 0; |
2356 | } | |
2357 | ||
ae1cef6e | 2358 | static int r8a66597_resume(struct device *dev) |
5d304358 | 2359 | { |
ae1cef6e | 2360 | struct r8a66597 *r8a66597 = dev_get_drvdata(dev); |
e1e609be YS |
2361 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); |
2362 | ||
167e4925 | 2363 | dev_dbg(dev, "%s\n", __func__); |
e1e609be YS |
2364 | |
2365 | enable_controller(r8a66597); | |
2366 | usb_root_hub_lost_power(hcd->self.root_hub); | |
2367 | ||
5d304358 YS |
2368 | return 0; |
2369 | } | |
ae1cef6e | 2370 | |
47145210 | 2371 | static const struct dev_pm_ops r8a66597_dev_pm_ops = { |
ae1cef6e MD |
2372 | .suspend = r8a66597_suspend, |
2373 | .resume = r8a66597_resume, | |
3725f28b YS |
2374 | .poweroff = r8a66597_suspend, |
2375 | .restore = r8a66597_resume, | |
ae1cef6e MD |
2376 | }; |
2377 | ||
2378 | #define R8A66597_DEV_PM_OPS (&r8a66597_dev_pm_ops) | |
5d304358 | 2379 | #else /* if defined(CONFIG_PM) */ |
ae1cef6e | 2380 | #define R8A66597_DEV_PM_OPS NULL |
5d304358 YS |
2381 | #endif |
2382 | ||
fb4e98ab | 2383 | static int r8a66597_remove(struct platform_device *pdev) |
5d304358 | 2384 | { |
9b1b0162 | 2385 | struct r8a66597 *r8a66597 = platform_get_drvdata(pdev); |
5d304358 YS |
2386 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); |
2387 | ||
2388 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2389 | usb_remove_hcd(hcd); |
1c98347e | 2390 | iounmap(r8a66597->reg); |
719a72b7 MD |
2391 | if (r8a66597->pdata->on_chip) |
2392 | clk_put(r8a66597->clk); | |
5d304358 YS |
2393 | usb_put_hcd(hcd); |
2394 | return 0; | |
2395 | } | |
2396 | ||
41ac7b3a | 2397 | static int r8a66597_probe(struct platform_device *pdev) |
5d304358 | 2398 | { |
765786e0 | 2399 | char clk_name[8]; |
27140219 | 2400 | struct resource *res = NULL, *ires; |
5d304358 YS |
2401 | int irq = -1; |
2402 | void __iomem *reg = NULL; | |
2403 | struct usb_hcd *hcd = NULL; | |
2404 | struct r8a66597 *r8a66597; | |
2405 | int ret = 0; | |
2406 | int i; | |
0bf32b80 | 2407 | unsigned long irq_trigger; |
5d304358 | 2408 | |
42791480 TK |
2409 | if (usb_disabled()) |
2410 | return -ENODEV; | |
2411 | ||
0a2e5b9b | 2412 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
5d304358 YS |
2413 | if (!res) { |
2414 | ret = -ENODEV; | |
0a2e5b9b | 2415 | dev_err(&pdev->dev, "platform_get_resource error.\n"); |
5d304358 YS |
2416 | goto clean_up; |
2417 | } | |
2418 | ||
27140219 MZ |
2419 | ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
2420 | if (!ires) { | |
5d304358 | 2421 | ret = -ENODEV; |
802f389a GKH |
2422 | dev_err(&pdev->dev, |
2423 | "platform_get_resource IORESOURCE_IRQ error.\n"); | |
5d304358 YS |
2424 | goto clean_up; |
2425 | } | |
2426 | ||
27140219 MZ |
2427 | irq = ires->start; |
2428 | irq_trigger = ires->flags & IRQF_TRIGGER_MASK; | |
2429 | ||
0a2e5b9b | 2430 | reg = ioremap(res->start, resource_size(res)); |
5d304358 YS |
2431 | if (reg == NULL) { |
2432 | ret = -ENOMEM; | |
802f389a | 2433 | dev_err(&pdev->dev, "ioremap error.\n"); |
5d304358 YS |
2434 | goto clean_up; |
2435 | } | |
2436 | ||
5effabbe YS |
2437 | if (pdev->dev.platform_data == NULL) { |
2438 | dev_err(&pdev->dev, "no platform data\n"); | |
2439 | ret = -ENODEV; | |
2440 | goto clean_up; | |
2441 | } | |
2442 | ||
5d304358 YS |
2443 | /* initialize hcd */ |
2444 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2445 | if (!hcd) { | |
2446 | ret = -ENOMEM; | |
802f389a | 2447 | dev_err(&pdev->dev, "Failed to create hcd\n"); |
5d304358 YS |
2448 | goto clean_up; |
2449 | } | |
2450 | r8a66597 = hcd_to_r8a66597(hcd); | |
2451 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
9b1b0162 | 2452 | platform_set_drvdata(pdev, r8a66597); |
d4f09e28 | 2453 | r8a66597->pdata = dev_get_platdata(&pdev->dev); |
5effabbe | 2454 | r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; |
5d304358 | 2455 | |
719a72b7 | 2456 | if (r8a66597->pdata->on_chip) { |
719a72b7 MD |
2457 | snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); |
2458 | r8a66597->clk = clk_get(&pdev->dev, clk_name); | |
2459 | if (IS_ERR(r8a66597->clk)) { | |
2460 | dev_err(&pdev->dev, "cannot get clock \"%s\"\n", | |
2461 | clk_name); | |
2462 | ret = PTR_ERR(r8a66597->clk); | |
2463 | goto clean_up2; | |
2464 | } | |
719a72b7 MD |
2465 | r8a66597->max_root_hub = 1; |
2466 | } else | |
2467 | r8a66597->max_root_hub = 2; | |
765786e0 | 2468 | |
5d304358 | 2469 | spin_lock_init(&r8a66597->lock); |
e99e88a9 | 2470 | timer_setup(&r8a66597->rh_timer, r8a66597_timer, 0); |
1c98347e | 2471 | r8a66597->reg = reg; |
5d304358 | 2472 | |
e5ff15be MD |
2473 | /* make sure no interrupts are pending */ |
2474 | ret = r8a66597_clock_enable(r8a66597); | |
2475 | if (ret < 0) | |
2476 | goto clean_up3; | |
2477 | disable_controller(r8a66597); | |
2478 | ||
5d304358 YS |
2479 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { |
2480 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
8e4e276a KC |
2481 | r8a66597->timers[i].r8a66597 = r8a66597; |
2482 | timer_setup(&r8a66597->timers[i].td, r8a66597_td_timer, 0); | |
2483 | timer_setup(&r8a66597->timers[i].interval, | |
2484 | r8a66597_interval_timer, 0); | |
5d304358 YS |
2485 | } |
2486 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2487 | ||
2488 | hcd->rsrc_start = res->start; | |
87abd0a9 | 2489 | hcd->has_tt = 1; |
27140219 | 2490 | |
b5dd18d8 | 2491 | ret = usb_add_hcd(hcd, irq, irq_trigger); |
5d304358 | 2492 | if (ret != 0) { |
802f389a | 2493 | dev_err(&pdev->dev, "Failed to add hcd\n"); |
765786e0 | 2494 | goto clean_up3; |
5d304358 | 2495 | } |
3c9740a1 | 2496 | device_wakeup_enable(hcd->self.controller); |
5d304358 YS |
2497 | |
2498 | return 0; | |
2499 | ||
765786e0 | 2500 | clean_up3: |
719a72b7 MD |
2501 | if (r8a66597->pdata->on_chip) |
2502 | clk_put(r8a66597->clk); | |
765786e0 MD |
2503 | clean_up2: |
2504 | usb_put_hcd(hcd); | |
2505 | ||
5d304358 YS |
2506 | clean_up: |
2507 | if (reg) | |
2508 | iounmap(reg); | |
5d304358 YS |
2509 | |
2510 | return ret; | |
2511 | } | |
2512 | ||
2513 | static struct platform_driver r8a66597_driver = { | |
2514 | .probe = r8a66597_probe, | |
7690417d | 2515 | .remove = r8a66597_remove, |
5d304358 | 2516 | .driver = { |
a458677d | 2517 | .name = hcd_name, |
ae1cef6e | 2518 | .pm = R8A66597_DEV_PM_OPS, |
5d304358 YS |
2519 | }, |
2520 | }; | |
2521 | ||
42791480 | 2522 | module_platform_driver(r8a66597_driver); |