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Commit | Line | Data |
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5d304358 YS |
1 | /* |
2 | * R8A66597 HCD (Host Controller Driver) | |
3 | * | |
4 | * Copyright (C) 2006-2007 Renesas Solutions Corp. | |
5 | * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO) | |
6 | * Portions Copyright (C) 2004-2005 David Brownell | |
7 | * Portions Copyright (C) 1999 Roman Weissgaerber | |
8 | * | |
9 | * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; version 2 of the License. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/sched.h> | |
5d304358 YS |
29 | #include <linux/errno.h> |
30 | #include <linux/init.h> | |
31 | #include <linux/timer.h> | |
32 | #include <linux/delay.h> | |
33 | #include <linux/list.h> | |
34 | #include <linux/interrupt.h> | |
35 | #include <linux/usb.h> | |
36 | #include <linux/platform_device.h> | |
e294531d YS |
37 | #include <linux/io.h> |
38 | #include <linux/irq.h> | |
5d304358 YS |
39 | |
40 | #include "../core/hcd.h" | |
41 | #include "r8a66597.h" | |
42 | ||
43 | MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); | |
44 | MODULE_LICENSE("GPL"); | |
45 | MODULE_AUTHOR("Yoshihiro Shimoda"); | |
f4fce61d | 46 | MODULE_ALIAS("platform:r8a66597_hcd"); |
5d304358 | 47 | |
5effabbe | 48 | #define DRIVER_VERSION "2009-05-26" |
5d304358 YS |
49 | |
50 | static const char hcd_name[] = "r8a66597_hcd"; | |
51 | ||
5d304358 YS |
52 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); |
53 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
54 | ||
55 | /* this function must be called with interrupt disabled */ | |
56 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
57 | unsigned long reg) | |
58 | { | |
59 | u16 tmp; | |
60 | ||
61 | tmp = r8a66597_read(r8a66597, INTENB0); | |
62 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
63 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
64 | r8a66597_write(r8a66597, tmp, INTENB0); | |
65 | } | |
66 | ||
67 | /* this function must be called with interrupt disabled */ | |
68 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
69 | unsigned long reg) | |
70 | { | |
71 | u16 tmp; | |
72 | ||
73 | tmp = r8a66597_read(r8a66597, INTENB0); | |
74 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
75 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
76 | r8a66597_write(r8a66597, tmp, INTENB0); | |
77 | } | |
78 | ||
79 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
80 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
81 | { | |
82 | u16 val; | |
83 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
84 | ||
85 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
86 | r8a66597_write(r8a66597, val, devadd_reg); | |
87 | } | |
88 | ||
9424ea29 | 89 | static int r8a66597_clock_enable(struct r8a66597 *r8a66597) |
5d304358 YS |
90 | { |
91 | u16 tmp; | |
92 | int i = 0; | |
93 | ||
9424ea29 | 94 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
765786e0 MD |
95 | #if defined(CONFIG_HAVE_CLK) |
96 | clk_enable(r8a66597->clk); | |
97 | #endif | |
9424ea29 YS |
98 | do { |
99 | r8a66597_write(r8a66597, SCKE, SYSCFG0); | |
100 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
101 | if (i++ > 1000) { | |
802f389a | 102 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
9424ea29 YS |
103 | return -ENXIO; |
104 | } | |
105 | } while ((tmp & SCKE) != SCKE); | |
106 | r8a66597_write(r8a66597, 0x04, 0x02); | |
107 | #else | |
5d304358 YS |
108 | do { |
109 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
110 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
111 | if (i++ > 1000) { | |
802f389a | 112 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
5d304358 YS |
113 | return -ENXIO; |
114 | } | |
115 | } while ((tmp & USBE) != USBE); | |
116 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
5effabbe YS |
117 | r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata), XTAL, |
118 | SYSCFG0); | |
5d304358 YS |
119 | |
120 | i = 0; | |
121 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
122 | do { | |
123 | msleep(1); | |
124 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
125 | if (i++ > 500) { | |
802f389a | 126 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
5d304358 YS |
127 | return -ENXIO; |
128 | } | |
129 | } while ((tmp & SCKE) != SCKE); | |
9424ea29 YS |
130 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | static void r8a66597_clock_disable(struct r8a66597 *r8a66597) | |
136 | { | |
137 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
138 | udelay(1); | |
765786e0 MD |
139 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
140 | #if defined(CONFIG_HAVE_CLK) | |
141 | clk_disable(r8a66597->clk); | |
142 | #endif | |
143 | #else | |
9424ea29 YS |
144 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); |
145 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
146 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
147 | #endif | |
148 | } | |
149 | ||
150 | static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) | |
151 | { | |
152 | u16 val; | |
153 | ||
154 | val = port ? DRPD : DCFM | DRPD; | |
155 | r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); | |
156 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
157 | ||
158 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); | |
159 | r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port)); | |
160 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
161 | } | |
162 | ||
163 | static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) | |
164 | { | |
165 | u16 val, tmp; | |
166 | ||
167 | r8a66597_write(r8a66597, 0, get_intenb_reg(port)); | |
168 | r8a66597_write(r8a66597, 0, get_intsts_reg(port)); | |
5d304358 | 169 | |
9424ea29 YS |
170 | r8a66597_port_power(r8a66597, port, 0); |
171 | ||
172 | do { | |
173 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
174 | udelay(640); | |
175 | } while (tmp == EDGESTS); | |
176 | ||
177 | val = port ? DRPD : DCFM | DRPD; | |
178 | r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); | |
179 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
180 | } | |
181 | ||
182 | static int enable_controller(struct r8a66597 *r8a66597) | |
183 | { | |
184 | int ret, port; | |
5effabbe YS |
185 | u16 vif = r8a66597->pdata->vif ? LDRV : 0; |
186 | u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0; | |
187 | u16 endian = r8a66597->pdata->endian ? BIGEND : 0; | |
9424ea29 YS |
188 | |
189 | ret = r8a66597_clock_enable(r8a66597); | |
190 | if (ret < 0) | |
191 | return ret; | |
5d304358 YS |
192 | |
193 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
5d304358 YS |
194 | r8a66597_bset(r8a66597, USBE, SYSCFG0); |
195 | ||
196 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
197 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
198 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
199 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
200 | ||
5d304358 YS |
201 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); |
202 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
203 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
5d304358 YS |
204 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); |
205 | ||
206 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
9424ea29 YS |
207 | |
208 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) | |
209 | r8a66597_enable_port(r8a66597, port); | |
5d304358 YS |
210 | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static void disable_controller(struct r8a66597 *r8a66597) | |
215 | { | |
9424ea29 | 216 | int port; |
5d304358 YS |
217 | |
218 | r8a66597_write(r8a66597, 0, INTENB0); | |
5d304358 | 219 | r8a66597_write(r8a66597, 0, INTSTS0); |
5d304358 | 220 | |
9424ea29 YS |
221 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
222 | r8a66597_disable_port(r8a66597, port); | |
5d304358 | 223 | |
9424ea29 | 224 | r8a66597_clock_disable(r8a66597); |
5d304358 YS |
225 | } |
226 | ||
227 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
228 | struct usb_device *udev) | |
229 | { | |
230 | struct r8a66597_device *dev; | |
231 | ||
232 | if (udev->parent && udev->parent->devnum != 1) | |
233 | udev = udev->parent; | |
234 | ||
235 | dev = dev_get_drvdata(&udev->dev); | |
236 | if (dev) | |
237 | return dev->address; | |
238 | else | |
239 | return 0; | |
240 | } | |
241 | ||
242 | static int is_child_device(char *devpath) | |
243 | { | |
244 | return (devpath[2] ? 1 : 0); | |
245 | } | |
246 | ||
247 | static int is_hub_limit(char *devpath) | |
248 | { | |
249 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
250 | } | |
251 | ||
252 | static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) | |
253 | { | |
254 | if (root_port) { | |
255 | *root_port = (devpath[0] & 0x0F) - 1; | |
256 | if (*root_port >= R8A66597_MAX_ROOT_HUB) | |
802f389a | 257 | printk(KERN_ERR "r8a66597: Illegal root port number.\n"); |
5d304358 YS |
258 | } |
259 | if (hub_port) | |
260 | *hub_port = devpath[2] & 0x0F; | |
261 | } | |
262 | ||
263 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
264 | { | |
265 | u16 usbspd = 0; | |
266 | ||
267 | switch (speed) { | |
268 | case USB_SPEED_LOW: | |
269 | usbspd = LSMODE; | |
270 | break; | |
271 | case USB_SPEED_FULL: | |
272 | usbspd = FSMODE; | |
273 | break; | |
274 | case USB_SPEED_HIGH: | |
275 | usbspd = HSMODE; | |
276 | break; | |
277 | default: | |
802f389a | 278 | printk(KERN_ERR "r8a66597: unknown speed\n"); |
5d304358 YS |
279 | break; |
280 | } | |
281 | ||
282 | return usbspd; | |
283 | } | |
284 | ||
285 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
286 | { | |
287 | int idx; | |
288 | ||
289 | idx = address / 32; | |
290 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
291 | } | |
292 | ||
293 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
294 | { | |
295 | int idx; | |
296 | ||
297 | idx = address / 32; | |
298 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
299 | } | |
300 | ||
301 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
302 | { | |
303 | u16 pipenum = pipe->info.pipenum; | |
fe9b9034 ML |
304 | const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; |
305 | const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
306 | const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
5d304358 YS |
307 | |
308 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
309 | dma_ch = R8A66597_PIPE_NO_DMA; | |
310 | ||
311 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
312 | pipe->fifosel = fifosel[dma_ch]; | |
313 | pipe->fifoctr = fifoctr[dma_ch]; | |
314 | ||
315 | if (pipenum == 0) | |
316 | pipe->pipectr = DCPCTR; | |
317 | else | |
318 | pipe->pipectr = get_pipectr_addr(pipenum); | |
319 | ||
320 | if (check_bulk_or_isoc(pipenum)) { | |
321 | pipe->pipetre = get_pipetre_addr(pipenum); | |
322 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
323 | } else { | |
324 | pipe->pipetre = 0; | |
325 | pipe->pipetrn = 0; | |
326 | } | |
327 | } | |
328 | ||
329 | static struct r8a66597_device * | |
330 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
331 | { | |
332 | if (usb_pipedevice(urb->pipe) == 0) | |
333 | return &r8a66597->device0; | |
334 | ||
335 | return dev_get_drvdata(&urb->dev->dev); | |
336 | } | |
337 | ||
338 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
339 | struct urb *urb, u8 addr) | |
340 | { | |
341 | struct r8a66597_device *dev; | |
342 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
343 | ||
e294531d | 344 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
345 | if (dev == NULL) |
346 | return -ENOMEM; | |
347 | ||
348 | dev_set_drvdata(&urb->dev->dev, dev); | |
349 | dev->udev = urb->dev; | |
350 | dev->address = addr; | |
351 | dev->usb_address = usb_address; | |
352 | dev->state = USB_STATE_ADDRESS; | |
353 | dev->ep_in_toggle = 0; | |
354 | dev->ep_out_toggle = 0; | |
355 | INIT_LIST_HEAD(&dev->device_list); | |
356 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
357 | ||
358 | get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port); | |
359 | if (!is_child_device(urb->dev->devpath)) | |
360 | r8a66597->root_hub[dev->root_port].dev = dev; | |
361 | ||
362 | set_devadd_reg(r8a66597, dev->address, | |
363 | get_r8a66597_usb_speed(urb->dev->speed), | |
364 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
365 | dev->hub_port, dev->root_port); | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
370 | /* this function must be called with interrupt disabled */ | |
371 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
372 | { | |
373 | u8 addr; /* R8A66597's address */ | |
374 | struct r8a66597_device *dev; | |
375 | ||
376 | if (is_hub_limit(urb->dev->devpath)) { | |
802f389a | 377 | dev_err(&urb->dev->dev, "External hub limit reached.\n"); |
5d304358 YS |
378 | return 0; |
379 | } | |
380 | ||
381 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
382 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
383 | return dev->address; | |
384 | ||
385 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
386 | if (r8a66597->address_map & (1 << addr)) | |
387 | continue; | |
388 | ||
389 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
390 | r8a66597->address_map |= 1 << addr; | |
391 | ||
392 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
393 | return 0; | |
394 | ||
395 | return addr; | |
396 | } | |
397 | ||
802f389a GKH |
398 | dev_err(&urb->dev->dev, |
399 | "cannot communicate with a USB device more than 10.(%x)\n", | |
400 | r8a66597->address_map); | |
5d304358 YS |
401 | |
402 | return 0; | |
403 | } | |
404 | ||
405 | /* this function must be called with interrupt disabled */ | |
406 | static void free_usb_address(struct r8a66597 *r8a66597, | |
407 | struct r8a66597_device *dev) | |
408 | { | |
409 | int port; | |
410 | ||
411 | if (!dev) | |
412 | return; | |
413 | ||
414 | dbg("free_addr: addr=%d", dev->address); | |
415 | ||
416 | dev->state = USB_STATE_DEFAULT; | |
417 | r8a66597->address_map &= ~(1 << dev->address); | |
418 | dev->address = 0; | |
419 | dev_set_drvdata(&dev->udev->dev, NULL); | |
420 | list_del(&dev->device_list); | |
421 | kfree(dev); | |
422 | ||
423 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
424 | if (r8a66597->root_hub[port].dev == dev) { | |
425 | r8a66597->root_hub[port].dev = NULL; | |
426 | break; | |
427 | } | |
428 | } | |
429 | } | |
430 | ||
431 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
432 | u16 mask, u16 loop) | |
433 | { | |
434 | u16 tmp; | |
435 | int i = 0; | |
436 | ||
437 | do { | |
438 | tmp = r8a66597_read(r8a66597, reg); | |
439 | if (i++ > 1000000) { | |
802f389a GKH |
440 | printk(KERN_ERR "r8a66597: register%lx, loop %x " |
441 | "is timeout\n", reg, loop); | |
5d304358 YS |
442 | break; |
443 | } | |
444 | ndelay(1); | |
445 | } while ((tmp & mask) != loop); | |
446 | } | |
447 | ||
448 | /* this function must be called with interrupt disabled */ | |
449 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
450 | { | |
451 | u16 tmp; | |
452 | ||
453 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
454 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
455 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
456 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
457 | } | |
458 | ||
459 | /* this function must be called with interrupt disabled */ | |
460 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
461 | { | |
462 | u16 tmp; | |
463 | ||
464 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
465 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
466 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
467 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
468 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
469 | } | |
470 | ||
471 | /* this function must be called with interrupt disabled */ | |
472 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
473 | struct r8a66597_pipe *pipe) | |
474 | { | |
475 | u16 tmp; | |
476 | ||
477 | if (!pipe || pipe->info.pipenum == 0) | |
478 | return; | |
479 | ||
480 | pipe_stop(r8a66597, pipe); | |
481 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
482 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
483 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
484 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
485 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
486 | } | |
487 | ||
488 | /* this function must be called with interrupt disabled */ | |
489 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
490 | struct r8a66597_pipe *pipe, int toggle) | |
491 | { | |
492 | if (toggle) | |
493 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
494 | else | |
495 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
496 | } | |
497 | ||
498 | /* this function must be called with interrupt disabled */ | |
499 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
500 | { | |
501 | r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); | |
502 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); | |
503 | } | |
504 | ||
505 | /* this function must be called with interrupt disabled */ | |
506 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
507 | struct r8a66597_pipe *pipe) | |
508 | { | |
509 | cfifo_change(r8a66597, 0); | |
510 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL); | |
511 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL); | |
512 | ||
513 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE, | |
514 | pipe->fifosel); | |
515 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
516 | } | |
517 | ||
518 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
519 | { | |
520 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
521 | ||
522 | if (usb_pipeendpoint(urb->pipe) == 0) | |
523 | return 0; | |
524 | else | |
525 | return pipe->info.pipenum; | |
526 | } | |
527 | ||
528 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
529 | { | |
530 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
531 | ||
532 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
533 | } | |
534 | ||
535 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
536 | int urb_pipe) | |
537 | { | |
538 | if (!dev) | |
539 | return NULL; | |
540 | ||
541 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
542 | } | |
543 | ||
544 | /* this function must be called with interrupt disabled */ | |
545 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
546 | struct r8a66597_pipe *pipe, | |
547 | struct urb *urb, int set) | |
548 | { | |
549 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
550 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
551 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
552 | ||
553 | if (!toggle) | |
554 | return; | |
555 | ||
556 | if (set) | |
557 | *toggle |= 1 << endpoint; | |
558 | else | |
559 | *toggle &= ~(1 << endpoint); | |
560 | } | |
561 | ||
562 | /* this function must be called with interrupt disabled */ | |
563 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
564 | struct r8a66597_pipe *pipe, | |
565 | struct urb *urb) | |
566 | { | |
567 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
568 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
569 | else | |
570 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
571 | } | |
572 | ||
573 | /* this function must be called with interrupt disabled */ | |
574 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
575 | struct r8a66597_pipe *pipe, | |
576 | struct urb *urb) | |
577 | { | |
578 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
579 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
580 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
581 | ||
f6ace2c9 YS |
582 | if (!toggle) |
583 | return; | |
584 | ||
5d304358 YS |
585 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
586 | } | |
587 | ||
588 | /* this function must be called with interrupt disabled */ | |
589 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
590 | struct r8a66597_pipe_info *info) | |
591 | { | |
592 | u16 val = 0; | |
593 | ||
594 | if (info->pipenum == 0) | |
595 | return; | |
596 | ||
597 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
598 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
599 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
600 | if (!info->dir_in) | |
601 | val |= R8A66597_DIR; | |
602 | if (info->type == R8A66597_BULK && info->dir_in) | |
603 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
604 | val |= info->type | info->epnum; | |
605 | r8a66597_write(r8a66597, val, PIPECFG); | |
606 | ||
607 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
608 | PIPEBUF); | |
609 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
610 | PIPEMAXP); | |
5d304358 YS |
611 | r8a66597_write(r8a66597, info->interval, PIPEPERI); |
612 | } | |
613 | ||
5d304358 YS |
614 | /* this function must be called with interrupt disabled */ |
615 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
616 | { | |
617 | struct r8a66597_pipe_info *info; | |
618 | struct urb *urb = td->urb; | |
619 | ||
620 | if (td->pipenum > 0) { | |
621 | info = &td->pipe->info; | |
622 | cfifo_change(r8a66597, 0); | |
623 | pipe_buffer_setting(r8a66597, info); | |
624 | ||
625 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
626 | usb_pipeout(urb->pipe)) && | |
627 | !usb_pipecontrol(urb->pipe)) { | |
628 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
629 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
630 | clear_all_buffer(r8a66597, td->pipe); | |
631 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
632 | usb_pipeout(urb->pipe), 1); | |
633 | } | |
634 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
635 | } | |
636 | } | |
637 | ||
638 | /* this function must be called with interrupt disabled */ | |
639 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
640 | struct usb_endpoint_descriptor *ep) | |
641 | { | |
642 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
643 | ||
644 | memset(array, 0, sizeof(array)); | |
2e0fe709 | 645 | switch (usb_endpoint_type(ep)) { |
e294531d | 646 | case USB_ENDPOINT_XFER_BULK: |
2e0fe709 | 647 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
648 | array[i++] = 4; |
649 | else { | |
650 | array[i++] = 3; | |
651 | array[i++] = 5; | |
652 | } | |
e294531d YS |
653 | break; |
654 | case USB_ENDPOINT_XFER_INT: | |
2e0fe709 | 655 | if (usb_endpoint_dir_in(ep)) { |
5d304358 YS |
656 | array[i++] = 6; |
657 | array[i++] = 7; | |
658 | array[i++] = 8; | |
659 | } else | |
660 | array[i++] = 9; | |
e294531d YS |
661 | break; |
662 | case USB_ENDPOINT_XFER_ISOC: | |
2e0fe709 | 663 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
664 | array[i++] = 2; |
665 | else | |
666 | array[i++] = 1; | |
e294531d YS |
667 | break; |
668 | default: | |
802f389a | 669 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
e294531d YS |
670 | return 0; |
671 | } | |
5d304358 YS |
672 | |
673 | i = 1; | |
674 | min = array[0]; | |
675 | while (array[i] != 0) { | |
676 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
677 | min = array[i]; | |
678 | i++; | |
679 | } | |
680 | ||
681 | return min; | |
682 | } | |
683 | ||
684 | static u16 get_r8a66597_type(__u8 type) | |
685 | { | |
686 | u16 r8a66597_type; | |
687 | ||
e294531d | 688 | switch (type) { |
5d304358 YS |
689 | case USB_ENDPOINT_XFER_BULK: |
690 | r8a66597_type = R8A66597_BULK; | |
691 | break; | |
692 | case USB_ENDPOINT_XFER_INT: | |
693 | r8a66597_type = R8A66597_INT; | |
694 | break; | |
695 | case USB_ENDPOINT_XFER_ISOC: | |
696 | r8a66597_type = R8A66597_ISO; | |
697 | break; | |
698 | default: | |
802f389a | 699 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
5d304358 YS |
700 | r8a66597_type = 0x0000; |
701 | break; | |
702 | } | |
703 | ||
704 | return r8a66597_type; | |
705 | } | |
706 | ||
707 | static u16 get_bufnum(u16 pipenum) | |
708 | { | |
709 | u16 bufnum = 0; | |
710 | ||
711 | if (pipenum == 0) | |
712 | bufnum = 0; | |
713 | else if (check_bulk_or_isoc(pipenum)) | |
714 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
715 | else if (check_interrupt(pipenum)) | |
716 | bufnum = 4 + (pipenum - 6); | |
717 | else | |
802f389a | 718 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
719 | |
720 | return bufnum; | |
721 | } | |
722 | ||
723 | static u16 get_buf_bsize(u16 pipenum) | |
724 | { | |
725 | u16 buf_bsize = 0; | |
726 | ||
727 | if (pipenum == 0) | |
728 | buf_bsize = 3; | |
729 | else if (check_bulk_or_isoc(pipenum)) | |
730 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
731 | else if (check_interrupt(pipenum)) | |
732 | buf_bsize = 0; | |
733 | else | |
802f389a | 734 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
735 | |
736 | return buf_bsize; | |
737 | } | |
738 | ||
739 | /* this function must be called with interrupt disabled */ | |
740 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
741 | struct r8a66597_device *dev, | |
742 | struct r8a66597_pipe *pipe, | |
743 | struct urb *urb) | |
744 | { | |
9424ea29 | 745 | #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
5d304358 YS |
746 | int i; |
747 | struct r8a66597_pipe_info *info = &pipe->info; | |
748 | ||
749 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
750 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
751 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
752 | continue; | |
753 | ||
5909f6ea GKH |
754 | dev_info(&dev->udev->dev, |
755 | "address %d, EndpointAddress 0x%02x use " | |
756 | "DMA FIFO\n", usb_pipedevice(urb->pipe), | |
757 | info->dir_in ? | |
758 | USB_ENDPOINT_DIR_MASK + info->epnum | |
759 | : info->epnum); | |
5d304358 YS |
760 | |
761 | r8a66597->dma_map |= 1 << i; | |
762 | dev->dma_map |= 1 << i; | |
763 | set_pipe_reg_addr(pipe, i); | |
764 | ||
765 | cfifo_change(r8a66597, 0); | |
766 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, | |
767 | MBW | CURPIPE, pipe->fifosel); | |
768 | ||
769 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
770 | pipe->info.pipenum); | |
771 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
772 | break; | |
773 | } | |
774 | } | |
9424ea29 | 775 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
5d304358 YS |
776 | } |
777 | ||
778 | /* this function must be called with interrupt disabled */ | |
779 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
780 | struct usb_host_endpoint *hep, | |
781 | struct r8a66597_pipe_info *info) | |
782 | { | |
783 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
784 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
785 | ||
786 | dbg("enable_pipe:"); | |
787 | ||
788 | pipe->info = *info; | |
789 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
790 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
791 | dev->pipe_cnt[pipe->info.pipenum]++; | |
792 | ||
793 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
794 | } | |
795 | ||
796 | /* this function must be called with interrupt disabled */ | |
797 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
798 | { | |
799 | struct r8a66597_td *td, *next; | |
800 | struct urb *urb; | |
801 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
802 | ||
803 | if (list_empty(list)) | |
804 | return; | |
805 | ||
806 | list_for_each_entry_safe(td, next, list, queue) { | |
807 | if (!td) | |
808 | continue; | |
809 | if (td->address != address) | |
810 | continue; | |
811 | ||
812 | urb = td->urb; | |
813 | list_del(&td->queue); | |
814 | kfree(td); | |
815 | ||
816 | if (urb) { | |
e9df41c5 AS |
817 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), |
818 | urb); | |
819 | ||
5d304358 | 820 | spin_unlock(&r8a66597->lock); |
4a00027d AS |
821 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, |
822 | -ENODEV); | |
5d304358 YS |
823 | spin_lock(&r8a66597->lock); |
824 | } | |
825 | break; | |
826 | } | |
827 | } | |
828 | ||
829 | /* this function must be called with interrupt disabled */ | |
830 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
831 | struct r8a66597_device *dev) | |
832 | { | |
833 | int check_ep0 = 0; | |
834 | u16 pipenum; | |
835 | ||
836 | if (!dev) | |
837 | return; | |
838 | ||
839 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
840 | if (!dev->pipe_cnt[pipenum]) | |
841 | continue; | |
842 | ||
843 | if (!check_ep0) { | |
844 | check_ep0 = 1; | |
845 | force_dequeue(r8a66597, 0, dev->address); | |
846 | } | |
847 | ||
848 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
849 | dev->pipe_cnt[pipenum] = 0; | |
850 | force_dequeue(r8a66597, pipenum, dev->address); | |
851 | } | |
852 | ||
853 | dbg("disable_pipe"); | |
854 | ||
855 | r8a66597->dma_map &= ~(dev->dma_map); | |
856 | dev->dma_map = 0; | |
857 | } | |
858 | ||
397f519a YS |
859 | static u16 get_interval(struct urb *urb, __u8 interval) |
860 | { | |
861 | u16 time = 1; | |
862 | int i; | |
863 | ||
864 | if (urb->dev->speed == USB_SPEED_HIGH) { | |
865 | if (interval > IITV) | |
866 | time = IITV; | |
867 | else | |
868 | time = interval ? interval - 1 : 0; | |
869 | } else { | |
870 | if (interval > 128) { | |
871 | time = IITV; | |
872 | } else { | |
873 | /* calculate the nearest value for PIPEPERI */ | |
874 | for (i = 0; i < 7; i++) { | |
875 | if ((1 << i) < interval && | |
876 | (1 << (i + 1) > interval)) | |
877 | time = 1 << i; | |
878 | } | |
879 | } | |
880 | } | |
881 | ||
882 | return time; | |
883 | } | |
884 | ||
6d879107 YS |
885 | static unsigned long get_timer_interval(struct urb *urb, __u8 interval) |
886 | { | |
887 | __u8 i; | |
888 | unsigned long time = 1; | |
889 | ||
890 | if (usb_pipeisoc(urb->pipe)) | |
891 | return 0; | |
892 | ||
893 | if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) { | |
894 | for (i = 0; i < (interval - 1); i++) | |
895 | time *= 2; | |
896 | time = time * 125 / 1000; /* uSOF -> msec */ | |
897 | } else { | |
898 | time = interval; | |
899 | } | |
900 | ||
901 | return time; | |
902 | } | |
903 | ||
5d304358 YS |
904 | /* this function must be called with interrupt disabled */ |
905 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
906 | struct usb_host_endpoint *hep, | |
907 | struct usb_endpoint_descriptor *ep) | |
908 | { | |
909 | struct r8a66597_pipe_info info; | |
910 | ||
911 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
912 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
2e0fe709 | 913 | info.epnum = usb_endpoint_num(ep); |
05eac910 | 914 | info.maxpacket = le16_to_cpu(ep->wMaxPacketSize); |
2e0fe709 | 915 | info.type = get_r8a66597_type(usb_endpoint_type(ep)); |
5d304358 YS |
916 | info.bufnum = get_bufnum(info.pipenum); |
917 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
6d879107 YS |
918 | if (info.type == R8A66597_BULK) { |
919 | info.interval = 0; | |
920 | info.timer_interval = 0; | |
921 | } else { | |
397f519a | 922 | info.interval = get_interval(urb, ep->bInterval); |
6d879107 YS |
923 | info.timer_interval = get_timer_interval(urb, ep->bInterval); |
924 | } | |
2e0fe709 | 925 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
926 | info.dir_in = 1; |
927 | else | |
928 | info.dir_in = 0; | |
929 | ||
930 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
931 | } | |
932 | ||
933 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
934 | { | |
935 | struct r8a66597_device *dev; | |
936 | ||
937 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
938 | dev->state = USB_STATE_CONFIGURED; | |
939 | } | |
940 | ||
941 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
942 | u16 pipenum) | |
943 | { | |
944 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
945 | enable_irq_empty(r8a66597, pipenum); | |
946 | else | |
947 | enable_irq_ready(r8a66597, pipenum); | |
948 | ||
949 | if (!usb_pipeisoc(urb->pipe)) | |
950 | enable_irq_nrdy(r8a66597, pipenum); | |
951 | } | |
952 | ||
953 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
954 | { | |
955 | disable_irq_ready(r8a66597, pipenum); | |
956 | disable_irq_nrdy(r8a66597, pipenum); | |
957 | } | |
958 | ||
54d0be9e YS |
959 | static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) |
960 | { | |
961 | mod_timer(&r8a66597->rh_timer, | |
962 | jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); | |
963 | } | |
964 | ||
965 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, | |
966 | int connect) | |
967 | { | |
968 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
969 | ||
970 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
971 | rh->scount = R8A66597_MAX_SAMPLING; | |
972 | if (connect) | |
973 | rh->port |= 1 << USB_PORT_FEAT_CONNECTION; | |
974 | else | |
975 | rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
976 | rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION; | |
977 | ||
978 | r8a66597_root_hub_start_polling(r8a66597); | |
979 | } | |
980 | ||
5d304358 | 981 | /* this function must be called with interrupt disabled */ |
29fab0cd YS |
982 | static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, |
983 | u16 syssts) | |
5d304358 | 984 | { |
29fab0cd | 985 | if (syssts == SE0) { |
54d0be9e | 986 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); |
29fab0cd YS |
987 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); |
988 | return; | |
989 | } | |
990 | ||
991 | if (syssts == FS_JSTS) | |
992 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
993 | else if (syssts == LS_JSTS) | |
994 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
995 | ||
e294531d | 996 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
5d304358 | 997 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); |
e1e609be YS |
998 | |
999 | if (r8a66597->bus_suspended) | |
1000 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
5d304358 YS |
1001 | } |
1002 | ||
1003 | /* this function must be called with interrupt disabled */ | |
1004 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
1005 | { | |
1006 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
1007 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1008 | ||
1009 | if (speed == HSMODE) | |
1010 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
1011 | else if (speed == LSMODE) | |
1012 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
1013 | ||
1014 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
1015 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
1016 | } | |
1017 | ||
1018 | /* this function must be called with interrupt disabled */ | |
1019 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
1020 | { | |
1021 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
1022 | ||
5d304358 YS |
1023 | disable_r8a66597_pipe_all(r8a66597, dev); |
1024 | free_usb_address(r8a66597, dev); | |
1025 | ||
54d0be9e | 1026 | start_root_hub_sampling(r8a66597, port, 0); |
5d304358 YS |
1027 | } |
1028 | ||
1029 | /* this function must be called with interrupt disabled */ | |
1030 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
1031 | struct r8a66597_td *td) | |
1032 | { | |
1033 | int i; | |
fd05e720 | 1034 | __le16 *p = (__le16 *)td->urb->setup_packet; |
5d304358 YS |
1035 | unsigned long setup_addr = USBREQ; |
1036 | ||
1037 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
1038 | DCPMAXP); | |
e294531d | 1039 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
1040 | |
1041 | for (i = 0; i < 4; i++) { | |
fd05e720 | 1042 | r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); |
5d304358 YS |
1043 | setup_addr += 2; |
1044 | } | |
1045 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
1046 | } | |
1047 | ||
1048 | /* this function must be called with interrupt disabled */ | |
1049 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
1050 | struct r8a66597_td *td) | |
1051 | { | |
1052 | struct urb *urb = td->urb; | |
1053 | ||
1054 | if (usb_pipecontrol(urb->pipe)) { | |
1055 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1056 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1057 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1058 | if (urb->actual_length == 0) { | |
1059 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1060 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1061 | } | |
1062 | pipe_irq_disable(r8a66597, td->pipenum); | |
1063 | pipe_start(r8a66597, td->pipe); | |
1064 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1065 | } else { | |
1066 | if (urb->actual_length == 0) { | |
1067 | pipe_irq_disable(r8a66597, td->pipenum); | |
1068 | pipe_setting(r8a66597, td); | |
1069 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 1070 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1071 | |
1072 | if (td->pipe->pipetre) { | |
1073 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 1074 | td->pipe->pipetre); |
5d304358 | 1075 | r8a66597_write(r8a66597, |
dfa5ec79 JL |
1076 | DIV_ROUND_UP |
1077 | (urb->transfer_buffer_length, | |
1078 | td->maxpacket), | |
e294531d | 1079 | td->pipe->pipetrn); |
5d304358 | 1080 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 1081 | td->pipe->pipetre); |
5d304358 YS |
1082 | } |
1083 | ||
1084 | pipe_start(r8a66597, td->pipe); | |
1085 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1086 | } | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | /* this function must be called with interrupt disabled */ | |
1091 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
1092 | struct r8a66597_td *td) | |
1093 | { | |
1094 | u16 tmp; | |
1095 | struct urb *urb = td->urb; | |
1096 | ||
1097 | if (usb_pipecontrol(urb->pipe)) { | |
1098 | pipe_stop(r8a66597, td->pipe); | |
1099 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1100 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1101 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1102 | if (urb->actual_length == 0) { | |
1103 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1104 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1105 | } | |
1106 | } else { | |
1107 | if (urb->actual_length == 0) | |
1108 | pipe_setting(r8a66597, td); | |
1109 | if (td->pipe->pipetre) | |
1110 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
1111 | } | |
e294531d | 1112 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1113 | |
1114 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1115 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1116 | if (unlikely((tmp & FRDY) == 0)) | |
1117 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1118 | else | |
1119 | packet_write(r8a66597, td->pipenum); | |
1120 | pipe_start(r8a66597, td->pipe); | |
1121 | } | |
1122 | ||
1123 | /* this function must be called with interrupt disabled */ | |
1124 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1125 | struct r8a66597_td *td) | |
1126 | { | |
1127 | struct urb *urb = td->urb; | |
1128 | ||
1129 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1130 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1131 | |
1132 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1133 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1134 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1135 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d | 1136 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
9424ea29 | 1137 | r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); |
5d304358 YS |
1138 | enable_irq_empty(r8a66597, 0); |
1139 | } else { | |
1140 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1141 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1142 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1143 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1144 | enable_irq_ready(r8a66597, 0); |
1145 | } | |
1146 | enable_irq_nrdy(r8a66597, 0); | |
1147 | pipe_start(r8a66597, td->pipe); | |
1148 | } | |
1149 | ||
e3a09051 YS |
1150 | static int is_set_address(unsigned char *setup_packet) |
1151 | { | |
1152 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1153 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1154 | return 1; | |
1155 | else | |
1156 | return 0; | |
1157 | } | |
1158 | ||
5d304358 YS |
1159 | /* this function must be called with interrupt disabled */ |
1160 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1161 | { | |
1162 | BUG_ON(!td); | |
1163 | ||
1164 | switch (td->type) { | |
1165 | case USB_PID_SETUP: | |
e3a09051 | 1166 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1167 | td->set_address = 1; |
1168 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1169 | td->urb); | |
1170 | if (td->urb->setup_packet[2] == 0) | |
1171 | return -EPIPE; | |
1172 | } | |
1173 | prepare_setup_packet(r8a66597, td); | |
1174 | break; | |
1175 | case USB_PID_IN: | |
1176 | prepare_packet_read(r8a66597, td); | |
1177 | break; | |
1178 | case USB_PID_OUT: | |
1179 | prepare_packet_write(r8a66597, td); | |
1180 | break; | |
1181 | case USB_PID_ACK: | |
1182 | prepare_status_packet(r8a66597, td); | |
1183 | break; | |
1184 | default: | |
802f389a | 1185 | printk(KERN_ERR "r8a66597: invalid type.\n"); |
5d304358 YS |
1186 | break; |
1187 | } | |
1188 | ||
1189 | return 0; | |
1190 | } | |
1191 | ||
1192 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1193 | { | |
1194 | if (usb_pipeisoc(urb->pipe)) { | |
1195 | if (urb->number_of_packets == td->iso_cnt) | |
1196 | return 1; | |
1197 | } | |
1198 | ||
1199 | /* control or bulk or interrupt */ | |
1200 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1201 | (td->short_packet) || (td->zero_packet)) | |
1202 | return 1; | |
1203 | ||
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | /* this function must be called with interrupt disabled */ | |
1208 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1209 | { | |
1210 | unsigned long time; | |
1211 | ||
1212 | BUG_ON(!td); | |
1213 | ||
1214 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1215 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1216 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1217 | switch (usb_pipetype(td->urb->pipe)) { | |
1218 | case PIPE_INTERRUPT: | |
1219 | case PIPE_ISOCHRONOUS: | |
1220 | time = 30; | |
1221 | break; | |
1222 | default: | |
1223 | time = 300; | |
1224 | break; | |
1225 | } | |
1226 | ||
1227 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1228 | jiffies + msecs_to_jiffies(time)); | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1233 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1234 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1235 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1236 | { |
1237 | int restart = 0; | |
1238 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1239 | ||
1240 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1241 | ||
1242 | if (likely(td)) { | |
888fda47 | 1243 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1244 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1245 | ||
1246 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1247 | list_del(&td->queue); | |
1248 | kfree(td); | |
1249 | } | |
1250 | ||
1251 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1252 | restart = 1; | |
1253 | ||
1254 | if (likely(urb)) { | |
1255 | if (usb_pipeisoc(urb->pipe)) | |
1256 | urb->start_frame = r8a66597_get_frame(hcd); | |
1257 | ||
e9df41c5 | 1258 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); |
5d304358 | 1259 | spin_unlock(&r8a66597->lock); |
4a00027d | 1260 | usb_hcd_giveback_urb(hcd, urb, status); |
5d304358 YS |
1261 | spin_lock(&r8a66597->lock); |
1262 | } | |
1263 | ||
1264 | if (restart) { | |
1265 | td = r8a66597_get_td(r8a66597, pipenum); | |
1266 | if (unlikely(!td)) | |
1267 | return; | |
1268 | ||
1269 | start_transfer(r8a66597, td); | |
1270 | set_td_timer(r8a66597, td); | |
1271 | } | |
1272 | } | |
1273 | ||
5d304358 YS |
1274 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1275 | { | |
1276 | u16 tmp; | |
1277 | int rcv_len, bufsize, urb_len, size; | |
1278 | u16 *buf; | |
1279 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1280 | struct urb *urb; | |
1281 | int finish = 0; | |
dfd1e537 | 1282 | int status = 0; |
5d304358 YS |
1283 | |
1284 | if (unlikely(!td)) | |
1285 | return; | |
1286 | urb = td->urb; | |
1287 | ||
1288 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1289 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1290 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1291 | pipe_stop(r8a66597, td->pipe); |
1292 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1293 | printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); |
888fda47 | 1294 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1295 | return; |
1296 | } | |
1297 | ||
1298 | /* prepare parameters */ | |
1299 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1300 | if (usb_pipeisoc(urb->pipe)) { |
1301 | buf = (u16 *)(urb->transfer_buffer + | |
1302 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1303 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1304 | } else { | |
1305 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1306 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1307 | } | |
dfd1e537 AS |
1308 | bufsize = min(urb_len, (int) td->maxpacket); |
1309 | if (rcv_len <= bufsize) { | |
1310 | size = rcv_len; | |
1311 | } else { | |
1312 | size = bufsize; | |
1313 | status = -EOVERFLOW; | |
1314 | finish = 1; | |
1315 | } | |
5d304358 YS |
1316 | |
1317 | /* update parameters */ | |
1318 | urb->actual_length += size; | |
1319 | if (rcv_len == 0) | |
1320 | td->zero_packet = 1; | |
dfd1e537 | 1321 | if (rcv_len < bufsize) { |
5d304358 | 1322 | td->short_packet = 1; |
5d304358 YS |
1323 | } |
1324 | if (usb_pipeisoc(urb->pipe)) { | |
1325 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1326 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1327 | td->iso_cnt++; |
dfd1e537 | 1328 | finish = 0; |
5d304358 YS |
1329 | } |
1330 | ||
1331 | /* check transfer finish */ | |
b0d9efba | 1332 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1333 | pipe_stop(r8a66597, td->pipe); |
1334 | pipe_irq_disable(r8a66597, pipenum); | |
1335 | finish = 1; | |
1336 | } | |
1337 | ||
1338 | /* read fifo */ | |
1339 | if (urb->transfer_buffer) { | |
1340 | if (size == 0) | |
1341 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1342 | else | |
1343 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1344 | buf, size); | |
1345 | } | |
1346 | ||
888fda47 AS |
1347 | if (finish && pipenum != 0) |
1348 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1349 | } |
1350 | ||
1351 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1352 | { | |
1353 | u16 tmp; | |
1354 | int bufsize, size; | |
1355 | u16 *buf; | |
1356 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1357 | struct urb *urb; | |
1358 | ||
1359 | if (unlikely(!td)) | |
1360 | return; | |
1361 | urb = td->urb; | |
1362 | ||
1363 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1364 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1365 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1366 | pipe_stop(r8a66597, td->pipe); |
1367 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1368 | printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); |
888fda47 | 1369 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1370 | return; |
1371 | } | |
1372 | ||
1373 | /* prepare parameters */ | |
1374 | bufsize = td->maxpacket; | |
1375 | if (usb_pipeisoc(urb->pipe)) { | |
1376 | buf = (u16 *)(urb->transfer_buffer + | |
1377 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1378 | size = min(bufsize, | |
1379 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1380 | } else { | |
1381 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
16e2e5f6 | 1382 | size = min_t(u32, bufsize, |
5d304358 YS |
1383 | urb->transfer_buffer_length - urb->actual_length); |
1384 | } | |
1385 | ||
1386 | /* write fifo */ | |
1387 | if (pipenum > 0) | |
e294531d | 1388 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 YS |
1389 | if (urb->transfer_buffer) { |
1390 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1391 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1392 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1393 | } | |
1394 | ||
1395 | /* update parameters */ | |
1396 | urb->actual_length += size; | |
1397 | if (usb_pipeisoc(urb->pipe)) { | |
1398 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1399 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1400 | td->iso_cnt++; | |
1401 | } | |
1402 | ||
1403 | /* check transfer finish */ | |
1404 | if (check_transfer_finish(td, urb)) { | |
1405 | disable_irq_ready(r8a66597, pipenum); | |
1406 | enable_irq_empty(r8a66597, pipenum); | |
1407 | if (!usb_pipeisoc(urb->pipe)) | |
1408 | enable_irq_nrdy(r8a66597, pipenum); | |
1409 | } else | |
1410 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1411 | } | |
1412 | ||
1413 | ||
888fda47 | 1414 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1415 | { |
1416 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1417 | struct urb *urb; | |
1418 | u8 finish = 0; | |
1419 | ||
1420 | if (unlikely(!td)) | |
1421 | return; | |
1422 | urb = td->urb; | |
1423 | ||
1424 | switch (td->type) { | |
1425 | case USB_PID_IN: | |
1426 | case USB_PID_OUT: | |
5d304358 YS |
1427 | if (check_transfer_finish(td, urb)) |
1428 | td->type = USB_PID_ACK; | |
1429 | break; | |
1430 | case USB_PID_SETUP: | |
eb231054 | 1431 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1432 | td->type = USB_PID_ACK; |
eb231054 | 1433 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1434 | td->type = USB_PID_OUT; |
1435 | else | |
1436 | td->type = USB_PID_IN; | |
1437 | break; | |
1438 | case USB_PID_ACK: | |
1439 | finish = 1; | |
5d304358 YS |
1440 | break; |
1441 | } | |
1442 | ||
888fda47 AS |
1443 | if (finish || status != 0 || urb->unlinked) |
1444 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1445 | else |
1446 | start_transfer(r8a66597, td); | |
1447 | } | |
1448 | ||
888fda47 | 1449 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1450 | { |
1451 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1452 | ||
888fda47 | 1453 | if (td) { |
5d304358 YS |
1454 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1455 | ||
1456 | if (pid == PID_NAK) | |
888fda47 | 1457 | return -ECONNRESET; |
5d304358 | 1458 | else |
888fda47 | 1459 | return -EPIPE; |
5d304358 | 1460 | } |
888fda47 | 1461 | return 0; |
5d304358 YS |
1462 | } |
1463 | ||
1464 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1465 | { | |
1466 | u16 check; | |
1467 | u16 pipenum; | |
1468 | u16 mask; | |
1469 | struct r8a66597_td *td; | |
1470 | ||
1471 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1472 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1473 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1474 | if (mask & BRDY0) { |
1475 | td = r8a66597_get_td(r8a66597, 0); | |
1476 | if (td && td->type == USB_PID_IN) | |
1477 | packet_read(r8a66597, 0); | |
1478 | else | |
1479 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1480 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1481 | } |
1482 | ||
1483 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1484 | check = 1 << pipenum; | |
1485 | if (mask & check) { | |
1486 | td = r8a66597_get_td(r8a66597, pipenum); | |
1487 | if (unlikely(!td)) | |
1488 | continue; | |
1489 | ||
1490 | if (td->type == USB_PID_IN) | |
1491 | packet_read(r8a66597, pipenum); | |
1492 | else if (td->type == USB_PID_OUT) | |
1493 | packet_write(r8a66597, pipenum); | |
1494 | } | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1499 | { | |
1500 | u16 tmp; | |
1501 | u16 check; | |
1502 | u16 pipenum; | |
1503 | u16 mask; | |
1504 | struct r8a66597_td *td; | |
1505 | ||
1506 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1507 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1508 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1509 | if (mask & BEMP0) { |
1510 | cfifo_change(r8a66597, 0); | |
1511 | td = r8a66597_get_td(r8a66597, 0); | |
1512 | if (td && td->type != USB_PID_OUT) | |
1513 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1514 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1515 | } |
1516 | ||
1517 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1518 | check = 1 << pipenum; | |
1519 | if (mask & check) { | |
1520 | struct r8a66597_td *td; | |
1521 | td = r8a66597_get_td(r8a66597, pipenum); | |
1522 | if (unlikely(!td)) | |
1523 | continue; | |
1524 | ||
1525 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1526 | if ((tmp & INBUFM) == 0) { | |
1527 | disable_irq_empty(r8a66597, pipenum); | |
1528 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1529 | finish_request(r8a66597, td, pipenum, td->urb, |
1530 | 0); | |
5d304358 YS |
1531 | } |
1532 | } | |
1533 | } | |
1534 | } | |
1535 | ||
1536 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1537 | { | |
1538 | u16 check; | |
1539 | u16 pipenum; | |
1540 | u16 mask; | |
888fda47 | 1541 | int status; |
5d304358 YS |
1542 | |
1543 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1544 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1545 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1546 | if (mask & NRDY0) { |
1547 | cfifo_change(r8a66597, 0); | |
888fda47 | 1548 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1549 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1550 | check_next_phase(r8a66597, status); |
5d304358 YS |
1551 | } |
1552 | ||
1553 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1554 | check = 1 << pipenum; | |
1555 | if (mask & check) { | |
1556 | struct r8a66597_td *td; | |
1557 | td = r8a66597_get_td(r8a66597, pipenum); | |
1558 | if (unlikely(!td)) | |
1559 | continue; | |
1560 | ||
888fda47 | 1561 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1562 | pipe_irq_disable(r8a66597, pipenum); |
1563 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1564 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1565 | } |
1566 | } | |
1567 | } | |
1568 | ||
5d304358 YS |
1569 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) |
1570 | { | |
1571 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1572 | u16 intsts0, intsts1, intsts2; | |
1573 | u16 intenb0, intenb1, intenb2; | |
1574 | u16 mask0, mask1, mask2; | |
888fda47 | 1575 | int status; |
5d304358 YS |
1576 | |
1577 | spin_lock(&r8a66597->lock); | |
1578 | ||
1579 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1580 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1581 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1582 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1583 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1584 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1585 | ||
1586 | mask2 = intsts2 & intenb2; | |
1587 | mask1 = intsts1 & intenb1; | |
1588 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1589 | if (mask2) { | |
1590 | if (mask2 & ATTCH) { | |
e294531d | 1591 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1592 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1593 | ||
1594 | /* start usb bus sampling */ | |
54d0be9e | 1595 | start_root_hub_sampling(r8a66597, 1, 1); |
5d304358 YS |
1596 | } |
1597 | if (mask2 & DTCH) { | |
e294531d | 1598 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1599 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1600 | r8a66597_usb_disconnect(r8a66597, 1); | |
1601 | } | |
e1e609be YS |
1602 | if (mask2 & BCHG) { |
1603 | r8a66597_write(r8a66597, ~BCHG, INTSTS2); | |
1604 | r8a66597_bclr(r8a66597, BCHGE, INTENB2); | |
1605 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1606 | } | |
5d304358 YS |
1607 | } |
1608 | ||
1609 | if (mask1) { | |
1610 | if (mask1 & ATTCH) { | |
e294531d | 1611 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1612 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1613 | ||
1614 | /* start usb bus sampling */ | |
54d0be9e | 1615 | start_root_hub_sampling(r8a66597, 0, 1); |
5d304358 YS |
1616 | } |
1617 | if (mask1 & DTCH) { | |
e294531d | 1618 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1619 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1620 | r8a66597_usb_disconnect(r8a66597, 0); | |
1621 | } | |
e1e609be YS |
1622 | if (mask1 & BCHG) { |
1623 | r8a66597_write(r8a66597, ~BCHG, INTSTS1); | |
1624 | r8a66597_bclr(r8a66597, BCHGE, INTENB1); | |
1625 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1626 | } | |
1627 | ||
5d304358 | 1628 | if (mask1 & SIGN) { |
e294531d | 1629 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1630 | status = get_urb_error(r8a66597, 0); |
1631 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1632 | } |
1633 | if (mask1 & SACK) { | |
e294531d | 1634 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1635 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1636 | } |
1637 | } | |
1638 | if (mask0) { | |
1639 | if (mask0 & BRDY) | |
1640 | irq_pipe_ready(r8a66597); | |
1641 | if (mask0 & BEMP) | |
1642 | irq_pipe_empty(r8a66597); | |
1643 | if (mask0 & NRDY) | |
1644 | irq_pipe_nrdy(r8a66597); | |
1645 | } | |
1646 | ||
1647 | spin_unlock(&r8a66597->lock); | |
1648 | return IRQ_HANDLED; | |
1649 | } | |
1650 | ||
1651 | /* this function must be called with interrupt disabled */ | |
1652 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1653 | { | |
1654 | u16 tmp; | |
1655 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1656 | ||
1657 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1658 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1659 | ||
1660 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1661 | if ((tmp & USBRST) == USBRST) { | |
1662 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1663 | dvstctr_reg); | |
29fab0cd | 1664 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1665 | } else |
1666 | r8a66597_usb_connect(r8a66597, port); | |
1667 | } | |
1668 | ||
29fab0cd YS |
1669 | if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) { |
1670 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); | |
1671 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
1672 | } | |
1673 | ||
5d304358 YS |
1674 | if (rh->scount > 0) { |
1675 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1676 | if (tmp == rh->old_syssts) { | |
1677 | rh->scount--; | |
29fab0cd YS |
1678 | if (rh->scount == 0) |
1679 | r8a66597_check_syssts(r8a66597, port, tmp); | |
1680 | else | |
1681 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1682 | } else { |
1683 | rh->scount = R8A66597_MAX_SAMPLING; | |
1684 | rh->old_syssts = tmp; | |
29fab0cd | 1685 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1686 | } |
1687 | } | |
1688 | } | |
1689 | ||
6d879107 YS |
1690 | static void r8a66597_interval_timer(unsigned long _r8a66597) |
1691 | { | |
1692 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1693 | unsigned long flags; | |
1694 | u16 pipenum; | |
1695 | struct r8a66597_td *td; | |
1696 | ||
1697 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1698 | ||
1699 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1700 | if (!(r8a66597->interval_map & (1 << pipenum))) | |
1701 | continue; | |
1702 | if (timer_pending(&r8a66597->interval_timer[pipenum])) | |
1703 | continue; | |
1704 | ||
1705 | td = r8a66597_get_td(r8a66597, pipenum); | |
1706 | if (td) | |
1707 | start_transfer(r8a66597, td); | |
1708 | } | |
1709 | ||
1710 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1711 | } | |
1712 | ||
5d304358 YS |
1713 | static void r8a66597_td_timer(unsigned long _r8a66597) |
1714 | { | |
1715 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1716 | unsigned long flags; | |
1717 | u16 pipenum; | |
1718 | struct r8a66597_td *td, *new_td = NULL; | |
1719 | struct r8a66597_pipe *pipe; | |
1720 | ||
1721 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1722 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1723 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1724 | continue; | |
1725 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1726 | continue; | |
1727 | ||
1728 | td = r8a66597_get_td(r8a66597, pipenum); | |
1729 | if (!td) { | |
1730 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1731 | continue; | |
1732 | } | |
1733 | ||
1734 | if (td->urb->actual_length) { | |
1735 | set_td_timer(r8a66597, td); | |
1736 | break; | |
1737 | } | |
1738 | ||
1739 | pipe = td->pipe; | |
1740 | pipe_stop(r8a66597, pipe); | |
1741 | ||
1742 | new_td = td; | |
1743 | do { | |
1744 | list_move_tail(&new_td->queue, | |
1745 | &r8a66597->pipe_queue[pipenum]); | |
1746 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1747 | if (!new_td) { | |
1748 | new_td = td; | |
1749 | break; | |
1750 | } | |
1751 | } while (td != new_td && td->address == new_td->address); | |
1752 | ||
1753 | start_transfer(r8a66597, new_td); | |
1754 | ||
1755 | if (td == new_td) | |
1756 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1757 | else | |
1758 | set_td_timer(r8a66597, new_td); | |
1759 | break; | |
1760 | } | |
1761 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1762 | } | |
1763 | ||
1764 | static void r8a66597_timer(unsigned long _r8a66597) | |
1765 | { | |
1766 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1767 | unsigned long flags; | |
58639646 | 1768 | int port; |
5d304358 YS |
1769 | |
1770 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1771 | ||
58639646 YS |
1772 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
1773 | r8a66597_root_hub_control(r8a66597, port); | |
5d304358 YS |
1774 | |
1775 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1776 | } | |
1777 | ||
1778 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1779 | { | |
1780 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1781 | ||
1782 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1783 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1784 | return 1; | |
1785 | else | |
1786 | return 0; | |
1787 | } | |
1788 | ||
1789 | static int r8a66597_start(struct usb_hcd *hcd) | |
1790 | { | |
1791 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1792 | |
1793 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1794 | return enable_controller(r8a66597); |
5d304358 YS |
1795 | } |
1796 | ||
1797 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1798 | { | |
1799 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1800 | ||
1801 | disable_controller(r8a66597); | |
1802 | } | |
1803 | ||
1804 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1805 | { | |
1806 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1807 | u16 root_port, hub_port; | |
1808 | ||
1809 | if (usb_address == 0) { | |
1810 | get_port_number(urb->dev->devpath, | |
1811 | &root_port, &hub_port); | |
1812 | set_devadd_reg(r8a66597, 0, | |
1813 | get_r8a66597_usb_speed(urb->dev->speed), | |
1814 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1815 | hub_port, root_port); | |
1816 | } | |
1817 | } | |
1818 | ||
1819 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1820 | struct urb *urb, | |
e294531d | 1821 | struct usb_host_endpoint *hep) |
5d304358 YS |
1822 | { |
1823 | struct r8a66597_td *td; | |
1824 | u16 pipenum; | |
1825 | ||
e294531d | 1826 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1827 | if (td == NULL) |
1828 | return NULL; | |
1829 | ||
1830 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1831 | td->pipenum = pipenum; | |
1832 | td->pipe = hep->hcpriv; | |
1833 | td->urb = urb; | |
1834 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1835 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1836 | !usb_pipein(urb->pipe)); | |
1837 | if (usb_pipecontrol(urb->pipe)) | |
1838 | td->type = USB_PID_SETUP; | |
1839 | else if (usb_pipein(urb->pipe)) | |
1840 | td->type = USB_PID_IN; | |
1841 | else | |
1842 | td->type = USB_PID_OUT; | |
1843 | INIT_LIST_HEAD(&td->queue); | |
1844 | ||
1845 | return td; | |
1846 | } | |
1847 | ||
1848 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1849 | struct urb *urb, |
1850 | gfp_t mem_flags) | |
1851 | { | |
e9df41c5 | 1852 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1853 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1854 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1855 | int ret, request = 0; |
5d304358 YS |
1856 | unsigned long flags; |
1857 | ||
1858 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1859 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1860 | ret = -ENODEV; | |
e9df41c5 | 1861 | goto error_not_linked; |
5d304358 YS |
1862 | } |
1863 | ||
e9df41c5 AS |
1864 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1865 | if (ret) | |
1866 | goto error_not_linked; | |
1867 | ||
5d304358 | 1868 | if (!hep->hcpriv) { |
e294531d YS |
1869 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1870 | GFP_ATOMIC); | |
5d304358 YS |
1871 | if (!hep->hcpriv) { |
1872 | ret = -ENOMEM; | |
1873 | goto error; | |
1874 | } | |
1875 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1876 | if (usb_pipeendpoint(urb->pipe)) | |
1877 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1878 | } | |
1879 | ||
1880 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1881 | init_pipe_config(r8a66597, urb); | |
1882 | ||
1883 | set_address_zero(r8a66597, urb); | |
e294531d | 1884 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1885 | if (td == NULL) { |
1886 | ret = -ENOMEM; | |
1887 | goto error; | |
1888 | } | |
1889 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1890 | request = 1; | |
1891 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1892 | urb->hcpriv = td; |
5d304358 YS |
1893 | |
1894 | if (request) { | |
6d879107 YS |
1895 | if (td->pipe->info.timer_interval) { |
1896 | r8a66597->interval_map |= 1 << td->pipenum; | |
1897 | mod_timer(&r8a66597->interval_timer[td->pipenum], | |
1898 | jiffies + msecs_to_jiffies( | |
1899 | td->pipe->info.timer_interval)); | |
1900 | } else { | |
1901 | ret = start_transfer(r8a66597, td); | |
1902 | if (ret < 0) { | |
1903 | list_del(&td->queue); | |
1904 | kfree(td); | |
1905 | } | |
5d304358 YS |
1906 | } |
1907 | } else | |
1908 | set_td_timer(r8a66597, td); | |
1909 | ||
1910 | error: | |
e9df41c5 AS |
1911 | if (ret) |
1912 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1913 | error_not_linked: | |
5d304358 YS |
1914 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1915 | return ret; | |
1916 | } | |
1917 | ||
e9df41c5 AS |
1918 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1919 | int status) | |
5d304358 YS |
1920 | { |
1921 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1922 | struct r8a66597_td *td; | |
1923 | unsigned long flags; | |
e9df41c5 | 1924 | int rc; |
5d304358 YS |
1925 | |
1926 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1927 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1928 | if (rc) | |
1929 | goto done; | |
1930 | ||
5d304358 YS |
1931 | if (urb->hcpriv) { |
1932 | td = urb->hcpriv; | |
1933 | pipe_stop(r8a66597, td->pipe); | |
1934 | pipe_irq_disable(r8a66597, td->pipenum); | |
1935 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1936 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1937 | } |
e9df41c5 | 1938 | done: |
5d304358 | 1939 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1940 | return rc; |
5d304358 YS |
1941 | } |
1942 | ||
1943 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1944 | struct usb_host_endpoint *hep) | |
1945 | { | |
1946 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1947 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1948 | struct r8a66597_td *td; | |
1949 | struct urb *urb = NULL; | |
1950 | u16 pipenum; | |
1951 | unsigned long flags; | |
1952 | ||
1953 | if (pipe == NULL) | |
1954 | return; | |
1955 | pipenum = pipe->info.pipenum; | |
1956 | ||
1957 | if (pipenum == 0) { | |
1958 | kfree(hep->hcpriv); | |
1959 | hep->hcpriv = NULL; | |
1960 | return; | |
1961 | } | |
1962 | ||
1963 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1964 | pipe_stop(r8a66597, pipe); | |
1965 | pipe_irq_disable(r8a66597, pipenum); | |
1966 | disable_irq_empty(r8a66597, pipenum); | |
1967 | td = r8a66597_get_td(r8a66597, pipenum); | |
1968 | if (td) | |
1969 | urb = td->urb; | |
888fda47 | 1970 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
1971 | kfree(hep->hcpriv); |
1972 | hep->hcpriv = NULL; | |
1973 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1974 | } | |
1975 | ||
1976 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
1977 | { | |
1978 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1979 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
1980 | } | |
1981 | ||
1982 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
1983 | { | |
1984 | int chix; | |
1985 | ||
1986 | if (udev->state == USB_STATE_CONFIGURED && | |
1987 | udev->parent && udev->parent->devnum > 1 && | |
1988 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
1989 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
1990 | ||
1991 | for (chix = 0; chix < udev->maxchild; chix++) { | |
1992 | struct usb_device *childdev = udev->children[chix]; | |
1993 | ||
1994 | if (childdev) | |
1995 | collect_usb_address_map(childdev, map); | |
1996 | } | |
1997 | } | |
1998 | ||
1999 | /* this function must be called with interrupt disabled */ | |
2000 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
2001 | int addr) | |
2002 | { | |
2003 | struct r8a66597_device *dev; | |
2004 | struct list_head *list = &r8a66597->child_device; | |
2005 | ||
2006 | list_for_each_entry(dev, list, device_list) { | |
2007 | if (!dev) | |
2008 | continue; | |
2009 | if (dev->usb_address != addr) | |
2010 | continue; | |
2011 | ||
2012 | return dev; | |
2013 | } | |
2014 | ||
802f389a | 2015 | printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); |
5d304358 YS |
2016 | return NULL; |
2017 | } | |
2018 | ||
2019 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
2020 | struct usb_device *root_hub, | |
2021 | unsigned long *map) | |
2022 | { | |
2023 | int i, j, addr; | |
2024 | unsigned long diff; | |
2025 | unsigned long flags; | |
2026 | ||
2027 | for (i = 0; i < 4; i++) { | |
2028 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
2029 | if (!diff) | |
2030 | continue; | |
2031 | ||
2032 | for (j = 0; j < 32; j++) { | |
2033 | if (!(diff & (1 << j))) | |
2034 | continue; | |
2035 | ||
2036 | addr = i * 32 + j; | |
2037 | if (map[i] & (1 << j)) | |
2038 | set_child_connect_map(r8a66597, addr); | |
2039 | else { | |
2040 | struct r8a66597_device *dev; | |
2041 | ||
2042 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2043 | dev = get_r8a66597_device(r8a66597, addr); | |
2044 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2045 | free_usb_address(r8a66597, dev); | |
2046 | put_child_connect_map(r8a66597, addr); | |
2047 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2048 | } | |
2049 | } | |
2050 | } | |
2051 | } | |
2052 | ||
2053 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
2054 | struct usb_hcd *hcd) | |
2055 | { | |
2056 | struct usb_bus *bus; | |
2057 | unsigned long now_map[4]; | |
2058 | ||
2059 | memset(now_map, 0, sizeof(now_map)); | |
2060 | ||
2061 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
2062 | if (!bus->root_hub) | |
2063 | continue; | |
2064 | ||
2065 | if (bus->busnum != hcd->self.busnum) | |
2066 | continue; | |
2067 | ||
2068 | collect_usb_address_map(bus->root_hub, now_map); | |
2069 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
2070 | } | |
2071 | } | |
2072 | ||
2073 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2074 | { | |
2075 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2076 | unsigned long flags; | |
2077 | int i; | |
2078 | ||
2079 | r8a66597_check_detect_child(r8a66597, hcd); | |
2080 | ||
2081 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2082 | ||
2083 | *buf = 0; /* initialize (no change) */ | |
2084 | ||
2085 | for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) { | |
2086 | if (r8a66597->root_hub[i].port & 0xffff0000) | |
2087 | *buf |= 1 << (i + 1); | |
2088 | } | |
2089 | ||
2090 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2091 | ||
2092 | return (*buf != 0); | |
2093 | } | |
2094 | ||
2095 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
2096 | struct usb_hub_descriptor *desc) | |
2097 | { | |
2098 | desc->bDescriptorType = 0x29; | |
2099 | desc->bHubContrCurrent = 0; | |
2100 | desc->bNbrPorts = R8A66597_MAX_ROOT_HUB; | |
2101 | desc->bDescLength = 9; | |
2102 | desc->bPwrOn2PwrGood = 0; | |
2103 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
2104 | desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1; | |
2105 | desc->bitmap[1] = ~0; | |
2106 | } | |
2107 | ||
2108 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2109 | u16 wIndex, char *buf, u16 wLength) | |
2110 | { | |
2111 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2112 | int ret; | |
2113 | int port = (wIndex & 0x00FF) - 1; | |
2114 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2115 | unsigned long flags; | |
2116 | ||
2117 | ret = 0; | |
2118 | ||
2119 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2120 | switch (typeReq) { | |
2121 | case ClearHubFeature: | |
2122 | case SetHubFeature: | |
2123 | switch (wValue) { | |
2124 | case C_HUB_OVER_CURRENT: | |
2125 | case C_HUB_LOCAL_POWER: | |
2126 | break; | |
2127 | default: | |
2128 | goto error; | |
2129 | } | |
2130 | break; | |
2131 | case ClearPortFeature: | |
2132 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2133 | goto error; | |
2134 | if (wLength != 0) | |
2135 | goto error; | |
2136 | ||
2137 | switch (wValue) { | |
2138 | case USB_PORT_FEAT_ENABLE: | |
e1e609be | 2139 | rh->port &= ~(1 << USB_PORT_FEAT_POWER); |
5d304358 YS |
2140 | break; |
2141 | case USB_PORT_FEAT_SUSPEND: | |
2142 | break; | |
2143 | case USB_PORT_FEAT_POWER: | |
2144 | r8a66597_port_power(r8a66597, port, 0); | |
2145 | break; | |
2146 | case USB_PORT_FEAT_C_ENABLE: | |
2147 | case USB_PORT_FEAT_C_SUSPEND: | |
2148 | case USB_PORT_FEAT_C_CONNECTION: | |
2149 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2150 | case USB_PORT_FEAT_C_RESET: | |
2151 | break; | |
2152 | default: | |
2153 | goto error; | |
2154 | } | |
2155 | rh->port &= ~(1 << wValue); | |
2156 | break; | |
2157 | case GetHubDescriptor: | |
2158 | r8a66597_hub_descriptor(r8a66597, | |
2159 | (struct usb_hub_descriptor *)buf); | |
2160 | break; | |
2161 | case GetHubStatus: | |
2162 | *buf = 0x00; | |
2163 | break; | |
2164 | case GetPortStatus: | |
2165 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2166 | goto error; | |
fd05e720 | 2167 | *(__le32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2168 | break; |
2169 | case SetPortFeature: | |
2170 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2171 | goto error; | |
2172 | if (wLength != 0) | |
2173 | goto error; | |
2174 | ||
2175 | switch (wValue) { | |
2176 | case USB_PORT_FEAT_SUSPEND: | |
2177 | break; | |
2178 | case USB_PORT_FEAT_POWER: | |
2179 | r8a66597_port_power(r8a66597, port, 1); | |
2180 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2181 | break; | |
2182 | case USB_PORT_FEAT_RESET: { | |
2183 | struct r8a66597_device *dev = rh->dev; | |
2184 | ||
2185 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2186 | ||
2187 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2188 | free_usb_address(r8a66597, dev); | |
2189 | ||
2190 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2191 | get_dvstctr_reg(port)); | |
2192 | mod_timer(&r8a66597->rh_timer, | |
2193 | jiffies + msecs_to_jiffies(50)); | |
2194 | } | |
2195 | break; | |
2196 | default: | |
2197 | goto error; | |
2198 | } | |
2199 | rh->port |= 1 << wValue; | |
2200 | break; | |
2201 | default: | |
2202 | error: | |
2203 | ret = -EPIPE; | |
2204 | break; | |
2205 | } | |
2206 | ||
2207 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2208 | return ret; | |
2209 | } | |
2210 | ||
e1e609be YS |
2211 | #if defined(CONFIG_PM) |
2212 | static int r8a66597_bus_suspend(struct usb_hcd *hcd) | |
2213 | { | |
2214 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2215 | int port; | |
2216 | ||
2217 | dbg("%s", __func__); | |
2218 | ||
2219 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2220 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2221 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2222 | ||
2223 | if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE))) | |
2224 | continue; | |
2225 | ||
2226 | dbg("suspend port = %d", port); | |
2227 | r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */ | |
2228 | rh->port |= 1 << USB_PORT_FEAT_SUSPEND; | |
2229 | ||
2230 | if (rh->dev->udev->do_remote_wakeup) { | |
2231 | msleep(3); /* waiting last SOF */ | |
2232 | r8a66597_bset(r8a66597, RWUPE, dvstctr_reg); | |
2233 | r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port)); | |
2234 | r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port)); | |
2235 | } | |
2236 | } | |
2237 | ||
2238 | r8a66597->bus_suspended = 1; | |
2239 | ||
2240 | return 0; | |
2241 | } | |
2242 | ||
2243 | static int r8a66597_bus_resume(struct usb_hcd *hcd) | |
2244 | { | |
2245 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2246 | int port; | |
2247 | ||
2248 | dbg("%s", __func__); | |
2249 | ||
2250 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2251 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2252 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2253 | ||
2254 | if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND))) | |
2255 | continue; | |
2256 | ||
2257 | dbg("resume port = %d", port); | |
2258 | rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND); | |
2259 | rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND; | |
2260 | r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); | |
2261 | msleep(50); | |
2262 | r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); | |
2263 | } | |
2264 | ||
2265 | return 0; | |
2266 | ||
2267 | } | |
2268 | #else | |
2269 | #define r8a66597_bus_suspend NULL | |
2270 | #define r8a66597_bus_resume NULL | |
2271 | #endif | |
2272 | ||
5d304358 YS |
2273 | static struct hc_driver r8a66597_hc_driver = { |
2274 | .description = hcd_name, | |
2275 | .hcd_priv_size = sizeof(struct r8a66597), | |
2276 | .irq = r8a66597_irq, | |
2277 | ||
2278 | /* | |
2279 | * generic hardware linkage | |
2280 | */ | |
2281 | .flags = HCD_USB2, | |
2282 | ||
2283 | .start = r8a66597_start, | |
2284 | .stop = r8a66597_stop, | |
2285 | ||
2286 | /* | |
2287 | * managing i/o requests and associated device resources | |
2288 | */ | |
2289 | .urb_enqueue = r8a66597_urb_enqueue, | |
2290 | .urb_dequeue = r8a66597_urb_dequeue, | |
2291 | .endpoint_disable = r8a66597_endpoint_disable, | |
2292 | ||
2293 | /* | |
2294 | * periodic schedule support | |
2295 | */ | |
2296 | .get_frame_number = r8a66597_get_frame, | |
2297 | ||
2298 | /* | |
2299 | * root hub support | |
2300 | */ | |
2301 | .hub_status_data = r8a66597_hub_status_data, | |
2302 | .hub_control = r8a66597_hub_control, | |
e1e609be YS |
2303 | .bus_suspend = r8a66597_bus_suspend, |
2304 | .bus_resume = r8a66597_bus_resume, | |
5d304358 YS |
2305 | }; |
2306 | ||
2307 | #if defined(CONFIG_PM) | |
2308 | static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) | |
2309 | { | |
e1e609be YS |
2310 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); |
2311 | int port; | |
2312 | ||
2313 | dbg("%s", __func__); | |
2314 | ||
2315 | disable_controller(r8a66597); | |
2316 | ||
2317 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2318 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2319 | ||
2320 | rh->port = 0x00000000; | |
2321 | } | |
2322 | ||
5d304358 YS |
2323 | return 0; |
2324 | } | |
2325 | ||
2326 | static int r8a66597_resume(struct platform_device *pdev) | |
2327 | { | |
e1e609be YS |
2328 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); |
2329 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2330 | ||
2331 | dbg("%s", __func__); | |
2332 | ||
2333 | enable_controller(r8a66597); | |
2334 | usb_root_hub_lost_power(hcd->self.root_hub); | |
2335 | ||
5d304358 YS |
2336 | return 0; |
2337 | } | |
2338 | #else /* if defined(CONFIG_PM) */ | |
2339 | #define r8a66597_suspend NULL | |
2340 | #define r8a66597_resume NULL | |
2341 | #endif | |
2342 | ||
2343 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2344 | { | |
2345 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2346 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2347 | ||
2348 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2349 | usb_remove_hcd(hcd); |
ca0677a2 | 2350 | iounmap((void *)r8a66597->reg); |
765786e0 MD |
2351 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2352 | clk_put(r8a66597->clk); | |
2353 | #endif | |
5d304358 YS |
2354 | usb_put_hcd(hcd); |
2355 | return 0; | |
2356 | } | |
2357 | ||
8864bd86 | 2358 | static int __devinit r8a66597_probe(struct platform_device *pdev) |
5d304358 | 2359 | { |
765786e0 MD |
2360 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2361 | char clk_name[8]; | |
2362 | #endif | |
27140219 | 2363 | struct resource *res = NULL, *ires; |
5d304358 YS |
2364 | int irq = -1; |
2365 | void __iomem *reg = NULL; | |
2366 | struct usb_hcd *hcd = NULL; | |
2367 | struct r8a66597 *r8a66597; | |
2368 | int ret = 0; | |
2369 | int i; | |
0bf32b80 | 2370 | unsigned long irq_trigger; |
5d304358 YS |
2371 | |
2372 | if (pdev->dev.dma_mask) { | |
2373 | ret = -EINVAL; | |
802f389a | 2374 | dev_err(&pdev->dev, "dma not supported\n"); |
5d304358 YS |
2375 | goto clean_up; |
2376 | } | |
2377 | ||
0a2e5b9b | 2378 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
5d304358 YS |
2379 | if (!res) { |
2380 | ret = -ENODEV; | |
0a2e5b9b | 2381 | dev_err(&pdev->dev, "platform_get_resource error.\n"); |
5d304358 YS |
2382 | goto clean_up; |
2383 | } | |
2384 | ||
27140219 MZ |
2385 | ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
2386 | if (!ires) { | |
5d304358 | 2387 | ret = -ENODEV; |
802f389a GKH |
2388 | dev_err(&pdev->dev, |
2389 | "platform_get_resource IORESOURCE_IRQ error.\n"); | |
5d304358 YS |
2390 | goto clean_up; |
2391 | } | |
2392 | ||
27140219 MZ |
2393 | irq = ires->start; |
2394 | irq_trigger = ires->flags & IRQF_TRIGGER_MASK; | |
2395 | ||
0a2e5b9b | 2396 | reg = ioremap(res->start, resource_size(res)); |
5d304358 YS |
2397 | if (reg == NULL) { |
2398 | ret = -ENOMEM; | |
802f389a | 2399 | dev_err(&pdev->dev, "ioremap error.\n"); |
5d304358 YS |
2400 | goto clean_up; |
2401 | } | |
2402 | ||
5effabbe YS |
2403 | if (pdev->dev.platform_data == NULL) { |
2404 | dev_err(&pdev->dev, "no platform data\n"); | |
2405 | ret = -ENODEV; | |
2406 | goto clean_up; | |
2407 | } | |
2408 | ||
5d304358 YS |
2409 | /* initialize hcd */ |
2410 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2411 | if (!hcd) { | |
2412 | ret = -ENOMEM; | |
802f389a | 2413 | dev_err(&pdev->dev, "Failed to create hcd\n"); |
5d304358 YS |
2414 | goto clean_up; |
2415 | } | |
2416 | r8a66597 = hcd_to_r8a66597(hcd); | |
2417 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2418 | dev_set_drvdata(&pdev->dev, r8a66597); | |
5effabbe YS |
2419 | r8a66597->pdata = pdev->dev.platform_data; |
2420 | r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; | |
5d304358 | 2421 | |
765786e0 MD |
2422 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2423 | snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); | |
2424 | r8a66597->clk = clk_get(&pdev->dev, clk_name); | |
2425 | if (IS_ERR(r8a66597->clk)) { | |
2426 | dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); | |
2427 | ret = PTR_ERR(r8a66597->clk); | |
2428 | goto clean_up2; | |
2429 | } | |
2430 | #endif | |
2431 | ||
5d304358 YS |
2432 | spin_lock_init(&r8a66597->lock); |
2433 | init_timer(&r8a66597->rh_timer); | |
2434 | r8a66597->rh_timer.function = r8a66597_timer; | |
2435 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2436 | r8a66597->reg = (unsigned long)reg; | |
2437 | ||
2438 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { | |
2439 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2440 | init_timer(&r8a66597->td_timer[i]); | |
2441 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2442 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
6d879107 YS |
2443 | setup_timer(&r8a66597->interval_timer[i], |
2444 | r8a66597_interval_timer, | |
2445 | (unsigned long)r8a66597); | |
5d304358 YS |
2446 | } |
2447 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2448 | ||
2449 | hcd->rsrc_start = res->start; | |
27140219 | 2450 | |
0bf32b80 | 2451 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); |
5d304358 | 2452 | if (ret != 0) { |
802f389a | 2453 | dev_err(&pdev->dev, "Failed to add hcd\n"); |
765786e0 | 2454 | goto clean_up3; |
5d304358 YS |
2455 | } |
2456 | ||
2457 | return 0; | |
2458 | ||
765786e0 MD |
2459 | clean_up3: |
2460 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) | |
2461 | clk_put(r8a66597->clk); | |
765786e0 | 2462 | clean_up2: |
d6435102 | 2463 | #endif |
765786e0 MD |
2464 | usb_put_hcd(hcd); |
2465 | ||
5d304358 YS |
2466 | clean_up: |
2467 | if (reg) | |
2468 | iounmap(reg); | |
5d304358 YS |
2469 | |
2470 | return ret; | |
2471 | } | |
2472 | ||
2473 | static struct platform_driver r8a66597_driver = { | |
2474 | .probe = r8a66597_probe, | |
2475 | .remove = r8a66597_remove, | |
2476 | .suspend = r8a66597_suspend, | |
2477 | .resume = r8a66597_resume, | |
2478 | .driver = { | |
2479 | .name = (char *) hcd_name, | |
f4fce61d | 2480 | .owner = THIS_MODULE, |
5d304358 YS |
2481 | }, |
2482 | }; | |
2483 | ||
2484 | static int __init r8a66597_init(void) | |
2485 | { | |
2486 | if (usb_disabled()) | |
2487 | return -ENODEV; | |
2488 | ||
5909f6ea GKH |
2489 | printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, |
2490 | DRIVER_VERSION); | |
5d304358 YS |
2491 | return platform_driver_register(&r8a66597_driver); |
2492 | } | |
2493 | module_init(r8a66597_init); | |
2494 | ||
2495 | static void __exit r8a66597_cleanup(void) | |
2496 | { | |
2497 | platform_driver_unregister(&r8a66597_driver); | |
2498 | } | |
2499 | module_exit(r8a66597_cleanup); | |
2500 |