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 | 37 | #include <linux/io.h> |
2717568e | 38 | #include <linux/mm.h> |
e294531d | 39 | #include <linux/irq.h> |
5a0e3ad6 | 40 | #include <linux/slab.h> |
2717568e | 41 | #include <asm/cacheflush.h> |
5d304358 YS |
42 | |
43 | #include "../core/hcd.h" | |
44 | #include "r8a66597.h" | |
45 | ||
46 | MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); | |
47 | MODULE_LICENSE("GPL"); | |
48 | MODULE_AUTHOR("Yoshihiro Shimoda"); | |
f4fce61d | 49 | MODULE_ALIAS("platform:r8a66597_hcd"); |
5d304358 | 50 | |
5effabbe | 51 | #define DRIVER_VERSION "2009-05-26" |
5d304358 YS |
52 | |
53 | static const char hcd_name[] = "r8a66597_hcd"; | |
54 | ||
5d304358 YS |
55 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); |
56 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
57 | ||
58 | /* this function must be called with interrupt disabled */ | |
59 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
60 | unsigned long reg) | |
61 | { | |
62 | u16 tmp; | |
63 | ||
64 | tmp = r8a66597_read(r8a66597, INTENB0); | |
65 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
66 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
67 | r8a66597_write(r8a66597, tmp, INTENB0); | |
68 | } | |
69 | ||
70 | /* this function must be called with interrupt disabled */ | |
71 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
72 | unsigned long reg) | |
73 | { | |
74 | u16 tmp; | |
75 | ||
76 | tmp = r8a66597_read(r8a66597, INTENB0); | |
77 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
78 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
79 | r8a66597_write(r8a66597, tmp, INTENB0); | |
80 | } | |
81 | ||
82 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
83 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
84 | { | |
85 | u16 val; | |
86 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
87 | ||
88 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
89 | r8a66597_write(r8a66597, val, devadd_reg); | |
90 | } | |
91 | ||
9424ea29 | 92 | static int r8a66597_clock_enable(struct r8a66597 *r8a66597) |
5d304358 YS |
93 | { |
94 | u16 tmp; | |
95 | int i = 0; | |
96 | ||
719a72b7 MD |
97 | if (r8a66597->pdata->on_chip) { |
98 | #ifdef CONFIG_HAVE_CLK | |
99 | clk_enable(r8a66597->clk); | |
765786e0 | 100 | #endif |
719a72b7 MD |
101 | do { |
102 | r8a66597_write(r8a66597, SCKE, SYSCFG0); | |
103 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
104 | if (i++ > 1000) { | |
105 | printk(KERN_ERR "r8a66597: reg access fail.\n"); | |
106 | return -ENXIO; | |
107 | } | |
108 | } while ((tmp & SCKE) != SCKE); | |
109 | r8a66597_write(r8a66597, 0x04, 0x02); | |
110 | } else { | |
111 | do { | |
112 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
113 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
114 | if (i++ > 1000) { | |
115 | printk(KERN_ERR "r8a66597: reg access fail.\n"); | |
116 | return -ENXIO; | |
117 | } | |
118 | } while ((tmp & USBE) != USBE); | |
119 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
120 | r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata), | |
121 | XTAL, SYSCFG0); | |
5d304358 | 122 | |
719a72b7 MD |
123 | i = 0; |
124 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
125 | do { | |
126 | msleep(1); | |
127 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
128 | if (i++ > 500) { | |
129 | printk(KERN_ERR "r8a66597: reg access fail.\n"); | |
130 | return -ENXIO; | |
131 | } | |
132 | } while ((tmp & SCKE) != SCKE); | |
133 | } | |
9424ea29 YS |
134 | |
135 | return 0; | |
136 | } | |
137 | ||
138 | static void r8a66597_clock_disable(struct r8a66597 *r8a66597) | |
139 | { | |
140 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
141 | udelay(1); | |
719a72b7 MD |
142 | |
143 | if (r8a66597->pdata->on_chip) { | |
144 | #ifdef CONFIG_HAVE_CLK | |
145 | clk_disable(r8a66597->clk); | |
9424ea29 | 146 | #endif |
719a72b7 MD |
147 | } else { |
148 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); | |
149 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
150 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
151 | } | |
9424ea29 YS |
152 | } |
153 | ||
154 | static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) | |
155 | { | |
156 | u16 val; | |
157 | ||
158 | val = port ? DRPD : DCFM | DRPD; | |
159 | r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); | |
160 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
161 | ||
162 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); | |
163 | r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port)); | |
164 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
165 | } | |
166 | ||
167 | static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) | |
168 | { | |
169 | u16 val, tmp; | |
170 | ||
171 | r8a66597_write(r8a66597, 0, get_intenb_reg(port)); | |
172 | r8a66597_write(r8a66597, 0, get_intsts_reg(port)); | |
5d304358 | 173 | |
9424ea29 YS |
174 | r8a66597_port_power(r8a66597, port, 0); |
175 | ||
176 | do { | |
177 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
178 | udelay(640); | |
179 | } while (tmp == EDGESTS); | |
180 | ||
181 | val = port ? DRPD : DCFM | DRPD; | |
182 | r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); | |
183 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
184 | } | |
185 | ||
186 | static int enable_controller(struct r8a66597 *r8a66597) | |
187 | { | |
188 | int ret, port; | |
5effabbe YS |
189 | u16 vif = r8a66597->pdata->vif ? LDRV : 0; |
190 | u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0; | |
191 | u16 endian = r8a66597->pdata->endian ? BIGEND : 0; | |
9424ea29 YS |
192 | |
193 | ret = r8a66597_clock_enable(r8a66597); | |
194 | if (ret < 0) | |
195 | return ret; | |
5d304358 YS |
196 | |
197 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
5d304358 YS |
198 | r8a66597_bset(r8a66597, USBE, SYSCFG0); |
199 | ||
200 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
201 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
202 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
203 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
204 | ||
5d304358 YS |
205 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); |
206 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
207 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
5d304358 YS |
208 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); |
209 | ||
210 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
9424ea29 | 211 | |
719a72b7 | 212 | for (port = 0; port < r8a66597->max_root_hub; port++) |
9424ea29 | 213 | r8a66597_enable_port(r8a66597, port); |
5d304358 YS |
214 | |
215 | return 0; | |
216 | } | |
217 | ||
218 | static void disable_controller(struct r8a66597 *r8a66597) | |
219 | { | |
9424ea29 | 220 | int port; |
5d304358 | 221 | |
e5ff15be | 222 | /* disable interrupts */ |
5d304358 | 223 | r8a66597_write(r8a66597, 0, INTENB0); |
e5ff15be MD |
224 | r8a66597_write(r8a66597, 0, INTENB1); |
225 | r8a66597_write(r8a66597, 0, BRDYENB); | |
226 | r8a66597_write(r8a66597, 0, BEMPENB); | |
227 | r8a66597_write(r8a66597, 0, NRDYENB); | |
228 | ||
229 | /* clear status */ | |
230 | r8a66597_write(r8a66597, 0, BRDYSTS); | |
231 | r8a66597_write(r8a66597, 0, NRDYSTS); | |
232 | r8a66597_write(r8a66597, 0, BEMPSTS); | |
5d304358 | 233 | |
719a72b7 | 234 | for (port = 0; port < r8a66597->max_root_hub; port++) |
9424ea29 | 235 | r8a66597_disable_port(r8a66597, port); |
5d304358 | 236 | |
9424ea29 | 237 | r8a66597_clock_disable(r8a66597); |
5d304358 YS |
238 | } |
239 | ||
240 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
241 | struct usb_device *udev) | |
242 | { | |
243 | struct r8a66597_device *dev; | |
244 | ||
245 | if (udev->parent && udev->parent->devnum != 1) | |
246 | udev = udev->parent; | |
247 | ||
248 | dev = dev_get_drvdata(&udev->dev); | |
249 | if (dev) | |
250 | return dev->address; | |
251 | else | |
252 | return 0; | |
253 | } | |
254 | ||
255 | static int is_child_device(char *devpath) | |
256 | { | |
257 | return (devpath[2] ? 1 : 0); | |
258 | } | |
259 | ||
260 | static int is_hub_limit(char *devpath) | |
261 | { | |
262 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
263 | } | |
264 | ||
719a72b7 MD |
265 | static void get_port_number(struct r8a66597 *r8a66597, |
266 | char *devpath, u16 *root_port, u16 *hub_port) | |
5d304358 YS |
267 | { |
268 | if (root_port) { | |
269 | *root_port = (devpath[0] & 0x0F) - 1; | |
719a72b7 | 270 | if (*root_port >= r8a66597->max_root_hub) |
802f389a | 271 | printk(KERN_ERR "r8a66597: Illegal root port number.\n"); |
5d304358 YS |
272 | } |
273 | if (hub_port) | |
274 | *hub_port = devpath[2] & 0x0F; | |
275 | } | |
276 | ||
277 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
278 | { | |
279 | u16 usbspd = 0; | |
280 | ||
281 | switch (speed) { | |
282 | case USB_SPEED_LOW: | |
283 | usbspd = LSMODE; | |
284 | break; | |
285 | case USB_SPEED_FULL: | |
286 | usbspd = FSMODE; | |
287 | break; | |
288 | case USB_SPEED_HIGH: | |
289 | usbspd = HSMODE; | |
290 | break; | |
291 | default: | |
802f389a | 292 | printk(KERN_ERR "r8a66597: unknown speed\n"); |
5d304358 YS |
293 | break; |
294 | } | |
295 | ||
296 | return usbspd; | |
297 | } | |
298 | ||
299 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
300 | { | |
301 | int idx; | |
302 | ||
303 | idx = address / 32; | |
304 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
305 | } | |
306 | ||
307 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
308 | { | |
309 | int idx; | |
310 | ||
311 | idx = address / 32; | |
312 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
313 | } | |
314 | ||
315 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
316 | { | |
317 | u16 pipenum = pipe->info.pipenum; | |
fe9b9034 ML |
318 | const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; |
319 | const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
320 | const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
5d304358 YS |
321 | |
322 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
323 | dma_ch = R8A66597_PIPE_NO_DMA; | |
324 | ||
325 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
326 | pipe->fifosel = fifosel[dma_ch]; | |
327 | pipe->fifoctr = fifoctr[dma_ch]; | |
328 | ||
329 | if (pipenum == 0) | |
330 | pipe->pipectr = DCPCTR; | |
331 | else | |
332 | pipe->pipectr = get_pipectr_addr(pipenum); | |
333 | ||
334 | if (check_bulk_or_isoc(pipenum)) { | |
335 | pipe->pipetre = get_pipetre_addr(pipenum); | |
336 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
337 | } else { | |
338 | pipe->pipetre = 0; | |
339 | pipe->pipetrn = 0; | |
340 | } | |
341 | } | |
342 | ||
343 | static struct r8a66597_device * | |
344 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
345 | { | |
346 | if (usb_pipedevice(urb->pipe) == 0) | |
347 | return &r8a66597->device0; | |
348 | ||
349 | return dev_get_drvdata(&urb->dev->dev); | |
350 | } | |
351 | ||
352 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
353 | struct urb *urb, u8 addr) | |
354 | { | |
355 | struct r8a66597_device *dev; | |
356 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
357 | ||
e294531d | 358 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
359 | if (dev == NULL) |
360 | return -ENOMEM; | |
361 | ||
362 | dev_set_drvdata(&urb->dev->dev, dev); | |
363 | dev->udev = urb->dev; | |
364 | dev->address = addr; | |
365 | dev->usb_address = usb_address; | |
366 | dev->state = USB_STATE_ADDRESS; | |
367 | dev->ep_in_toggle = 0; | |
368 | dev->ep_out_toggle = 0; | |
369 | INIT_LIST_HEAD(&dev->device_list); | |
370 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
371 | ||
719a72b7 MD |
372 | get_port_number(r8a66597, urb->dev->devpath, |
373 | &dev->root_port, &dev->hub_port); | |
5d304358 YS |
374 | if (!is_child_device(urb->dev->devpath)) |
375 | r8a66597->root_hub[dev->root_port].dev = dev; | |
376 | ||
377 | set_devadd_reg(r8a66597, dev->address, | |
378 | get_r8a66597_usb_speed(urb->dev->speed), | |
379 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
380 | dev->hub_port, dev->root_port); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | /* this function must be called with interrupt disabled */ | |
386 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
387 | { | |
388 | u8 addr; /* R8A66597's address */ | |
389 | struct r8a66597_device *dev; | |
390 | ||
391 | if (is_hub_limit(urb->dev->devpath)) { | |
802f389a | 392 | dev_err(&urb->dev->dev, "External hub limit reached.\n"); |
5d304358 YS |
393 | return 0; |
394 | } | |
395 | ||
396 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
397 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
398 | return dev->address; | |
399 | ||
400 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
401 | if (r8a66597->address_map & (1 << addr)) | |
402 | continue; | |
403 | ||
404 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
405 | r8a66597->address_map |= 1 << addr; | |
406 | ||
407 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
408 | return 0; | |
409 | ||
410 | return addr; | |
411 | } | |
412 | ||
802f389a GKH |
413 | dev_err(&urb->dev->dev, |
414 | "cannot communicate with a USB device more than 10.(%x)\n", | |
415 | r8a66597->address_map); | |
5d304358 YS |
416 | |
417 | return 0; | |
418 | } | |
419 | ||
420 | /* this function must be called with interrupt disabled */ | |
421 | static void free_usb_address(struct r8a66597 *r8a66597, | |
d8359334 | 422 | struct r8a66597_device *dev, int reset) |
5d304358 YS |
423 | { |
424 | int port; | |
425 | ||
426 | if (!dev) | |
427 | return; | |
428 | ||
429 | dbg("free_addr: addr=%d", dev->address); | |
430 | ||
431 | dev->state = USB_STATE_DEFAULT; | |
432 | r8a66597->address_map &= ~(1 << dev->address); | |
433 | dev->address = 0; | |
d8359334 YS |
434 | /* |
435 | * Only when resetting USB, it is necessary to erase drvdata. When | |
436 | * a usb device with usb hub is disconnect, "dev->udev" is already | |
437 | * freed on usb_desconnect(). So we cannot access the data. | |
438 | */ | |
439 | if (reset) | |
440 | dev_set_drvdata(&dev->udev->dev, NULL); | |
5d304358 YS |
441 | list_del(&dev->device_list); |
442 | kfree(dev); | |
443 | ||
719a72b7 | 444 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
5d304358 YS |
445 | if (r8a66597->root_hub[port].dev == dev) { |
446 | r8a66597->root_hub[port].dev = NULL; | |
447 | break; | |
448 | } | |
449 | } | |
450 | } | |
451 | ||
452 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
453 | u16 mask, u16 loop) | |
454 | { | |
455 | u16 tmp; | |
456 | int i = 0; | |
457 | ||
458 | do { | |
459 | tmp = r8a66597_read(r8a66597, reg); | |
460 | if (i++ > 1000000) { | |
802f389a GKH |
461 | printk(KERN_ERR "r8a66597: register%lx, loop %x " |
462 | "is timeout\n", reg, loop); | |
5d304358 YS |
463 | break; |
464 | } | |
465 | ndelay(1); | |
466 | } while ((tmp & mask) != loop); | |
467 | } | |
468 | ||
469 | /* this function must be called with interrupt disabled */ | |
470 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
471 | { | |
472 | u16 tmp; | |
473 | ||
474 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
475 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
476 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
477 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
478 | } | |
479 | ||
480 | /* this function must be called with interrupt disabled */ | |
481 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
482 | { | |
483 | u16 tmp; | |
484 | ||
485 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
486 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
487 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
488 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
489 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
490 | } | |
491 | ||
492 | /* this function must be called with interrupt disabled */ | |
493 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
494 | struct r8a66597_pipe *pipe) | |
495 | { | |
496 | u16 tmp; | |
497 | ||
498 | if (!pipe || pipe->info.pipenum == 0) | |
499 | return; | |
500 | ||
501 | pipe_stop(r8a66597, pipe); | |
502 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
503 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
504 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
505 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
506 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
507 | } | |
508 | ||
509 | /* this function must be called with interrupt disabled */ | |
510 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
511 | struct r8a66597_pipe *pipe, int toggle) | |
512 | { | |
513 | if (toggle) | |
514 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
515 | else | |
516 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
517 | } | |
518 | ||
719a72b7 MD |
519 | static inline unsigned short mbw_value(struct r8a66597 *r8a66597) |
520 | { | |
521 | if (r8a66597->pdata->on_chip) | |
522 | return MBW_32; | |
523 | else | |
524 | return MBW_16; | |
525 | } | |
526 | ||
5d304358 YS |
527 | /* this function must be called with interrupt disabled */ |
528 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
529 | { | |
719a72b7 MD |
530 | unsigned short mbw = mbw_value(r8a66597); |
531 | ||
532 | r8a66597_mdfy(r8a66597, mbw | pipenum, mbw | CURPIPE, CFIFOSEL); | |
5d304358 YS |
533 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); |
534 | } | |
535 | ||
536 | /* this function must be called with interrupt disabled */ | |
537 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
538 | struct r8a66597_pipe *pipe) | |
539 | { | |
719a72b7 MD |
540 | unsigned short mbw = mbw_value(r8a66597); |
541 | ||
5d304358 | 542 | cfifo_change(r8a66597, 0); |
719a72b7 MD |
543 | r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D0FIFOSEL); |
544 | r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D1FIFOSEL); | |
5d304358 | 545 | |
719a72b7 | 546 | r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, mbw | CURPIPE, |
5d304358 YS |
547 | pipe->fifosel); |
548 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
549 | } | |
550 | ||
551 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
552 | { | |
553 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
554 | ||
555 | if (usb_pipeendpoint(urb->pipe) == 0) | |
556 | return 0; | |
557 | else | |
558 | return pipe->info.pipenum; | |
559 | } | |
560 | ||
561 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
562 | { | |
563 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
564 | ||
565 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
566 | } | |
567 | ||
568 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
569 | int urb_pipe) | |
570 | { | |
571 | if (!dev) | |
572 | return NULL; | |
573 | ||
574 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
575 | } | |
576 | ||
577 | /* this function must be called with interrupt disabled */ | |
578 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
579 | struct r8a66597_pipe *pipe, | |
580 | struct urb *urb, int set) | |
581 | { | |
582 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
583 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
584 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
585 | ||
586 | if (!toggle) | |
587 | return; | |
588 | ||
589 | if (set) | |
590 | *toggle |= 1 << endpoint; | |
591 | else | |
592 | *toggle &= ~(1 << endpoint); | |
593 | } | |
594 | ||
595 | /* this function must be called with interrupt disabled */ | |
596 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
597 | struct r8a66597_pipe *pipe, | |
598 | struct urb *urb) | |
599 | { | |
600 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
601 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
602 | else | |
603 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
604 | } | |
605 | ||
606 | /* this function must be called with interrupt disabled */ | |
607 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
608 | struct r8a66597_pipe *pipe, | |
609 | struct urb *urb) | |
610 | { | |
611 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
612 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
613 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
614 | ||
f6ace2c9 YS |
615 | if (!toggle) |
616 | return; | |
617 | ||
5d304358 YS |
618 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
619 | } | |
620 | ||
621 | /* this function must be called with interrupt disabled */ | |
622 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
623 | struct r8a66597_pipe_info *info) | |
624 | { | |
625 | u16 val = 0; | |
626 | ||
627 | if (info->pipenum == 0) | |
628 | return; | |
629 | ||
630 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
631 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
632 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
633 | if (!info->dir_in) | |
634 | val |= R8A66597_DIR; | |
635 | if (info->type == R8A66597_BULK && info->dir_in) | |
636 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
637 | val |= info->type | info->epnum; | |
638 | r8a66597_write(r8a66597, val, PIPECFG); | |
639 | ||
640 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
641 | PIPEBUF); | |
642 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
643 | PIPEMAXP); | |
5d304358 YS |
644 | r8a66597_write(r8a66597, info->interval, PIPEPERI); |
645 | } | |
646 | ||
5d304358 YS |
647 | /* this function must be called with interrupt disabled */ |
648 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
649 | { | |
650 | struct r8a66597_pipe_info *info; | |
651 | struct urb *urb = td->urb; | |
652 | ||
653 | if (td->pipenum > 0) { | |
654 | info = &td->pipe->info; | |
655 | cfifo_change(r8a66597, 0); | |
656 | pipe_buffer_setting(r8a66597, info); | |
657 | ||
658 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
659 | usb_pipeout(urb->pipe)) && | |
660 | !usb_pipecontrol(urb->pipe)) { | |
661 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
662 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
663 | clear_all_buffer(r8a66597, td->pipe); | |
664 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
665 | usb_pipeout(urb->pipe), 1); | |
666 | } | |
667 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
668 | } | |
669 | } | |
670 | ||
671 | /* this function must be called with interrupt disabled */ | |
672 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
673 | struct usb_endpoint_descriptor *ep) | |
674 | { | |
675 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
676 | ||
677 | memset(array, 0, sizeof(array)); | |
2e0fe709 | 678 | switch (usb_endpoint_type(ep)) { |
e294531d | 679 | case USB_ENDPOINT_XFER_BULK: |
2e0fe709 | 680 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
681 | array[i++] = 4; |
682 | else { | |
683 | array[i++] = 3; | |
684 | array[i++] = 5; | |
685 | } | |
e294531d YS |
686 | break; |
687 | case USB_ENDPOINT_XFER_INT: | |
2e0fe709 | 688 | if (usb_endpoint_dir_in(ep)) { |
5d304358 YS |
689 | array[i++] = 6; |
690 | array[i++] = 7; | |
691 | array[i++] = 8; | |
692 | } else | |
693 | array[i++] = 9; | |
e294531d YS |
694 | break; |
695 | case USB_ENDPOINT_XFER_ISOC: | |
2e0fe709 | 696 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
697 | array[i++] = 2; |
698 | else | |
699 | array[i++] = 1; | |
e294531d YS |
700 | break; |
701 | default: | |
802f389a | 702 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
e294531d YS |
703 | return 0; |
704 | } | |
5d304358 YS |
705 | |
706 | i = 1; | |
707 | min = array[0]; | |
708 | while (array[i] != 0) { | |
709 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
710 | min = array[i]; | |
711 | i++; | |
712 | } | |
713 | ||
714 | return min; | |
715 | } | |
716 | ||
717 | static u16 get_r8a66597_type(__u8 type) | |
718 | { | |
719 | u16 r8a66597_type; | |
720 | ||
e294531d | 721 | switch (type) { |
5d304358 YS |
722 | case USB_ENDPOINT_XFER_BULK: |
723 | r8a66597_type = R8A66597_BULK; | |
724 | break; | |
725 | case USB_ENDPOINT_XFER_INT: | |
726 | r8a66597_type = R8A66597_INT; | |
727 | break; | |
728 | case USB_ENDPOINT_XFER_ISOC: | |
729 | r8a66597_type = R8A66597_ISO; | |
730 | break; | |
731 | default: | |
802f389a | 732 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
5d304358 YS |
733 | r8a66597_type = 0x0000; |
734 | break; | |
735 | } | |
736 | ||
737 | return r8a66597_type; | |
738 | } | |
739 | ||
740 | static u16 get_bufnum(u16 pipenum) | |
741 | { | |
742 | u16 bufnum = 0; | |
743 | ||
744 | if (pipenum == 0) | |
745 | bufnum = 0; | |
746 | else if (check_bulk_or_isoc(pipenum)) | |
747 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
748 | else if (check_interrupt(pipenum)) | |
749 | bufnum = 4 + (pipenum - 6); | |
750 | else | |
802f389a | 751 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
752 | |
753 | return bufnum; | |
754 | } | |
755 | ||
756 | static u16 get_buf_bsize(u16 pipenum) | |
757 | { | |
758 | u16 buf_bsize = 0; | |
759 | ||
760 | if (pipenum == 0) | |
761 | buf_bsize = 3; | |
762 | else if (check_bulk_or_isoc(pipenum)) | |
763 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
764 | else if (check_interrupt(pipenum)) | |
765 | buf_bsize = 0; | |
766 | else | |
802f389a | 767 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
768 | |
769 | return buf_bsize; | |
770 | } | |
771 | ||
772 | /* this function must be called with interrupt disabled */ | |
773 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
774 | struct r8a66597_device *dev, | |
775 | struct r8a66597_pipe *pipe, | |
776 | struct urb *urb) | |
777 | { | |
778 | int i; | |
779 | struct r8a66597_pipe_info *info = &pipe->info; | |
719a72b7 MD |
780 | unsigned short mbw = mbw_value(r8a66597); |
781 | ||
782 | /* pipe dma is only for external controlles */ | |
783 | if (r8a66597->pdata->on_chip) | |
784 | return; | |
5d304358 YS |
785 | |
786 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
787 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
788 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
789 | continue; | |
790 | ||
5909f6ea GKH |
791 | dev_info(&dev->udev->dev, |
792 | "address %d, EndpointAddress 0x%02x use " | |
793 | "DMA FIFO\n", usb_pipedevice(urb->pipe), | |
794 | info->dir_in ? | |
795 | USB_ENDPOINT_DIR_MASK + info->epnum | |
796 | : info->epnum); | |
5d304358 YS |
797 | |
798 | r8a66597->dma_map |= 1 << i; | |
799 | dev->dma_map |= 1 << i; | |
800 | set_pipe_reg_addr(pipe, i); | |
801 | ||
802 | cfifo_change(r8a66597, 0); | |
719a72b7 MD |
803 | r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, |
804 | mbw | CURPIPE, pipe->fifosel); | |
5d304358 YS |
805 | |
806 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
807 | pipe->info.pipenum); | |
808 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
809 | break; | |
810 | } | |
811 | } | |
812 | } | |
813 | ||
814 | /* this function must be called with interrupt disabled */ | |
815 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
816 | struct usb_host_endpoint *hep, | |
817 | struct r8a66597_pipe_info *info) | |
818 | { | |
819 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
820 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
821 | ||
822 | dbg("enable_pipe:"); | |
823 | ||
824 | pipe->info = *info; | |
825 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
826 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
827 | dev->pipe_cnt[pipe->info.pipenum]++; | |
828 | ||
829 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
830 | } | |
831 | ||
2717568e PM |
832 | static void r8a66597_urb_done(struct r8a66597 *r8a66597, struct urb *urb, |
833 | int status) | |
834 | __releases(r8a66597->lock) | |
835 | __acquires(r8a66597->lock) | |
836 | { | |
837 | if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) { | |
838 | void *ptr; | |
839 | ||
840 | for (ptr = urb->transfer_buffer; | |
841 | ptr < urb->transfer_buffer + urb->transfer_buffer_length; | |
842 | ptr += PAGE_SIZE) | |
843 | flush_dcache_page(virt_to_page(ptr)); | |
844 | } | |
845 | ||
846 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); | |
847 | spin_unlock(&r8a66597->lock); | |
848 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, status); | |
849 | spin_lock(&r8a66597->lock); | |
850 | } | |
851 | ||
5d304358 YS |
852 | /* this function must be called with interrupt disabled */ |
853 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
854 | { | |
855 | struct r8a66597_td *td, *next; | |
856 | struct urb *urb; | |
857 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
858 | ||
859 | if (list_empty(list)) | |
860 | return; | |
861 | ||
862 | list_for_each_entry_safe(td, next, list, queue) { | |
5d304358 YS |
863 | if (td->address != address) |
864 | continue; | |
865 | ||
866 | urb = td->urb; | |
867 | list_del(&td->queue); | |
868 | kfree(td); | |
869 | ||
2717568e PM |
870 | if (urb) |
871 | r8a66597_urb_done(r8a66597, urb, -ENODEV); | |
e9df41c5 | 872 | |
5d304358 YS |
873 | break; |
874 | } | |
875 | } | |
876 | ||
877 | /* this function must be called with interrupt disabled */ | |
878 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
879 | struct r8a66597_device *dev) | |
880 | { | |
881 | int check_ep0 = 0; | |
882 | u16 pipenum; | |
883 | ||
884 | if (!dev) | |
885 | return; | |
886 | ||
887 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
888 | if (!dev->pipe_cnt[pipenum]) | |
889 | continue; | |
890 | ||
891 | if (!check_ep0) { | |
892 | check_ep0 = 1; | |
893 | force_dequeue(r8a66597, 0, dev->address); | |
894 | } | |
895 | ||
896 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
897 | dev->pipe_cnt[pipenum] = 0; | |
898 | force_dequeue(r8a66597, pipenum, dev->address); | |
899 | } | |
900 | ||
901 | dbg("disable_pipe"); | |
902 | ||
903 | r8a66597->dma_map &= ~(dev->dma_map); | |
904 | dev->dma_map = 0; | |
905 | } | |
906 | ||
397f519a YS |
907 | static u16 get_interval(struct urb *urb, __u8 interval) |
908 | { | |
909 | u16 time = 1; | |
910 | int i; | |
911 | ||
912 | if (urb->dev->speed == USB_SPEED_HIGH) { | |
913 | if (interval > IITV) | |
914 | time = IITV; | |
915 | else | |
916 | time = interval ? interval - 1 : 0; | |
917 | } else { | |
918 | if (interval > 128) { | |
919 | time = IITV; | |
920 | } else { | |
921 | /* calculate the nearest value for PIPEPERI */ | |
922 | for (i = 0; i < 7; i++) { | |
923 | if ((1 << i) < interval && | |
924 | (1 << (i + 1) > interval)) | |
925 | time = 1 << i; | |
926 | } | |
927 | } | |
928 | } | |
929 | ||
930 | return time; | |
931 | } | |
932 | ||
6d879107 YS |
933 | static unsigned long get_timer_interval(struct urb *urb, __u8 interval) |
934 | { | |
935 | __u8 i; | |
936 | unsigned long time = 1; | |
937 | ||
938 | if (usb_pipeisoc(urb->pipe)) | |
939 | return 0; | |
940 | ||
941 | if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) { | |
942 | for (i = 0; i < (interval - 1); i++) | |
943 | time *= 2; | |
944 | time = time * 125 / 1000; /* uSOF -> msec */ | |
945 | } else { | |
946 | time = interval; | |
947 | } | |
948 | ||
949 | return time; | |
950 | } | |
951 | ||
5d304358 YS |
952 | /* this function must be called with interrupt disabled */ |
953 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
954 | struct usb_host_endpoint *hep, | |
955 | struct usb_endpoint_descriptor *ep) | |
956 | { | |
957 | struct r8a66597_pipe_info info; | |
958 | ||
959 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
960 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
2e0fe709 | 961 | info.epnum = usb_endpoint_num(ep); |
05eac910 | 962 | info.maxpacket = le16_to_cpu(ep->wMaxPacketSize); |
2e0fe709 | 963 | info.type = get_r8a66597_type(usb_endpoint_type(ep)); |
5d304358 YS |
964 | info.bufnum = get_bufnum(info.pipenum); |
965 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
6d879107 YS |
966 | if (info.type == R8A66597_BULK) { |
967 | info.interval = 0; | |
968 | info.timer_interval = 0; | |
969 | } else { | |
397f519a | 970 | info.interval = get_interval(urb, ep->bInterval); |
6d879107 YS |
971 | info.timer_interval = get_timer_interval(urb, ep->bInterval); |
972 | } | |
2e0fe709 | 973 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
974 | info.dir_in = 1; |
975 | else | |
976 | info.dir_in = 0; | |
977 | ||
978 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
979 | } | |
980 | ||
981 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
982 | { | |
983 | struct r8a66597_device *dev; | |
984 | ||
985 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
986 | dev->state = USB_STATE_CONFIGURED; | |
987 | } | |
988 | ||
989 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
990 | u16 pipenum) | |
991 | { | |
992 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
993 | enable_irq_empty(r8a66597, pipenum); | |
994 | else | |
995 | enable_irq_ready(r8a66597, pipenum); | |
996 | ||
997 | if (!usb_pipeisoc(urb->pipe)) | |
998 | enable_irq_nrdy(r8a66597, pipenum); | |
999 | } | |
1000 | ||
1001 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
1002 | { | |
1003 | disable_irq_ready(r8a66597, pipenum); | |
1004 | disable_irq_nrdy(r8a66597, pipenum); | |
1005 | } | |
1006 | ||
54d0be9e YS |
1007 | static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) |
1008 | { | |
1009 | mod_timer(&r8a66597->rh_timer, | |
1010 | jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); | |
1011 | } | |
1012 | ||
1013 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, | |
1014 | int connect) | |
1015 | { | |
1016 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1017 | ||
1018 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1019 | rh->scount = R8A66597_MAX_SAMPLING; | |
1020 | if (connect) | |
1021 | rh->port |= 1 << USB_PORT_FEAT_CONNECTION; | |
1022 | else | |
1023 | rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
1024 | rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION; | |
1025 | ||
1026 | r8a66597_root_hub_start_polling(r8a66597); | |
1027 | } | |
1028 | ||
5d304358 | 1029 | /* this function must be called with interrupt disabled */ |
29fab0cd YS |
1030 | static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, |
1031 | u16 syssts) | |
2c940db2 PM |
1032 | __releases(r8a66597->lock) |
1033 | __acquires(r8a66597->lock) | |
5d304358 | 1034 | { |
29fab0cd | 1035 | if (syssts == SE0) { |
54d0be9e | 1036 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); |
29fab0cd | 1037 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); |
1e6159f8 YS |
1038 | } else { |
1039 | if (syssts == FS_JSTS) | |
1040 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
1041 | else if (syssts == LS_JSTS) | |
1042 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
29fab0cd | 1043 | |
1e6159f8 YS |
1044 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
1045 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); | |
29fab0cd | 1046 | |
1e6159f8 YS |
1047 | if (r8a66597->bus_suspended) |
1048 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1049 | } | |
e1e609be | 1050 | |
2c940db2 | 1051 | spin_unlock(&r8a66597->lock); |
1e6159f8 | 1052 | usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597)); |
2c940db2 | 1053 | spin_lock(&r8a66597->lock); |
5d304358 YS |
1054 | } |
1055 | ||
1056 | /* this function must be called with interrupt disabled */ | |
1057 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
1058 | { | |
1059 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
1060 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1061 | ||
1e6159f8 YS |
1062 | rh->port &= ~((1 << USB_PORT_FEAT_HIGHSPEED) | |
1063 | (1 << USB_PORT_FEAT_LOWSPEED)); | |
5d304358 YS |
1064 | if (speed == HSMODE) |
1065 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
1066 | else if (speed == LSMODE) | |
1067 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
1068 | ||
1069 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
1070 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
1071 | } | |
1072 | ||
1073 | /* this function must be called with interrupt disabled */ | |
1074 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
1075 | { | |
1076 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
1077 | ||
5d304358 | 1078 | disable_r8a66597_pipe_all(r8a66597, dev); |
d8359334 | 1079 | free_usb_address(r8a66597, dev, 0); |
5d304358 | 1080 | |
54d0be9e | 1081 | start_root_hub_sampling(r8a66597, port, 0); |
5d304358 YS |
1082 | } |
1083 | ||
1084 | /* this function must be called with interrupt disabled */ | |
1085 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
1086 | struct r8a66597_td *td) | |
1087 | { | |
1088 | int i; | |
fd05e720 | 1089 | __le16 *p = (__le16 *)td->urb->setup_packet; |
5d304358 YS |
1090 | unsigned long setup_addr = USBREQ; |
1091 | ||
1092 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
1093 | DCPMAXP); | |
e294531d | 1094 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
1095 | |
1096 | for (i = 0; i < 4; i++) { | |
fd05e720 | 1097 | r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); |
5d304358 YS |
1098 | setup_addr += 2; |
1099 | } | |
1100 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
1101 | } | |
1102 | ||
1103 | /* this function must be called with interrupt disabled */ | |
1104 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
1105 | struct r8a66597_td *td) | |
1106 | { | |
1107 | struct urb *urb = td->urb; | |
1108 | ||
1109 | if (usb_pipecontrol(urb->pipe)) { | |
1110 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1111 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1112 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1113 | if (urb->actual_length == 0) { | |
1114 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1115 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1116 | } | |
1117 | pipe_irq_disable(r8a66597, td->pipenum); | |
1118 | pipe_start(r8a66597, td->pipe); | |
1119 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1120 | } else { | |
1121 | if (urb->actual_length == 0) { | |
1122 | pipe_irq_disable(r8a66597, td->pipenum); | |
1123 | pipe_setting(r8a66597, td); | |
1124 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 1125 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1126 | |
1127 | if (td->pipe->pipetre) { | |
1128 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 1129 | td->pipe->pipetre); |
5d304358 | 1130 | r8a66597_write(r8a66597, |
dfa5ec79 JL |
1131 | DIV_ROUND_UP |
1132 | (urb->transfer_buffer_length, | |
1133 | td->maxpacket), | |
e294531d | 1134 | td->pipe->pipetrn); |
5d304358 | 1135 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 1136 | td->pipe->pipetre); |
5d304358 YS |
1137 | } |
1138 | ||
1139 | pipe_start(r8a66597, td->pipe); | |
1140 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1141 | } | |
1142 | } | |
1143 | } | |
1144 | ||
1145 | /* this function must be called with interrupt disabled */ | |
1146 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
1147 | struct r8a66597_td *td) | |
1148 | { | |
1149 | u16 tmp; | |
1150 | struct urb *urb = td->urb; | |
1151 | ||
1152 | if (usb_pipecontrol(urb->pipe)) { | |
1153 | pipe_stop(r8a66597, td->pipe); | |
1154 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1155 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1156 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1157 | if (urb->actual_length == 0) { | |
1158 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1159 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1160 | } | |
1161 | } else { | |
1162 | if (urb->actual_length == 0) | |
1163 | pipe_setting(r8a66597, td); | |
1164 | if (td->pipe->pipetre) | |
1165 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
1166 | } | |
e294531d | 1167 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1168 | |
1169 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1170 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1171 | if (unlikely((tmp & FRDY) == 0)) | |
1172 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1173 | else | |
1174 | packet_write(r8a66597, td->pipenum); | |
1175 | pipe_start(r8a66597, td->pipe); | |
1176 | } | |
1177 | ||
1178 | /* this function must be called with interrupt disabled */ | |
1179 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1180 | struct r8a66597_td *td) | |
1181 | { | |
1182 | struct urb *urb = td->urb; | |
1183 | ||
1184 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1185 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1186 | |
1187 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1188 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1189 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1190 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d | 1191 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
9424ea29 | 1192 | r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); |
5d304358 YS |
1193 | enable_irq_empty(r8a66597, 0); |
1194 | } else { | |
1195 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1196 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1197 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1198 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1199 | enable_irq_ready(r8a66597, 0); |
1200 | } | |
1201 | enable_irq_nrdy(r8a66597, 0); | |
1202 | pipe_start(r8a66597, td->pipe); | |
1203 | } | |
1204 | ||
e3a09051 YS |
1205 | static int is_set_address(unsigned char *setup_packet) |
1206 | { | |
1207 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1208 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1209 | return 1; | |
1210 | else | |
1211 | return 0; | |
1212 | } | |
1213 | ||
5d304358 YS |
1214 | /* this function must be called with interrupt disabled */ |
1215 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1216 | { | |
1217 | BUG_ON(!td); | |
1218 | ||
1219 | switch (td->type) { | |
1220 | case USB_PID_SETUP: | |
e3a09051 | 1221 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1222 | td->set_address = 1; |
1223 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1224 | td->urb); | |
1225 | if (td->urb->setup_packet[2] == 0) | |
1226 | return -EPIPE; | |
1227 | } | |
1228 | prepare_setup_packet(r8a66597, td); | |
1229 | break; | |
1230 | case USB_PID_IN: | |
1231 | prepare_packet_read(r8a66597, td); | |
1232 | break; | |
1233 | case USB_PID_OUT: | |
1234 | prepare_packet_write(r8a66597, td); | |
1235 | break; | |
1236 | case USB_PID_ACK: | |
1237 | prepare_status_packet(r8a66597, td); | |
1238 | break; | |
1239 | default: | |
802f389a | 1240 | printk(KERN_ERR "r8a66597: invalid type.\n"); |
5d304358 YS |
1241 | break; |
1242 | } | |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1248 | { | |
1249 | if (usb_pipeisoc(urb->pipe)) { | |
1250 | if (urb->number_of_packets == td->iso_cnt) | |
1251 | return 1; | |
1252 | } | |
1253 | ||
1254 | /* control or bulk or interrupt */ | |
1255 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1256 | (td->short_packet) || (td->zero_packet)) | |
1257 | return 1; | |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | /* this function must be called with interrupt disabled */ | |
1263 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1264 | { | |
1265 | unsigned long time; | |
1266 | ||
1267 | BUG_ON(!td); | |
1268 | ||
1269 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1270 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1271 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1272 | switch (usb_pipetype(td->urb->pipe)) { | |
1273 | case PIPE_INTERRUPT: | |
1274 | case PIPE_ISOCHRONOUS: | |
1275 | time = 30; | |
1276 | break; | |
1277 | default: | |
1278 | time = 300; | |
1279 | break; | |
1280 | } | |
1281 | ||
1282 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1283 | jiffies + msecs_to_jiffies(time)); | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1288 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1289 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1290 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1291 | { |
1292 | int restart = 0; | |
1293 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1294 | ||
1295 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1296 | ||
1297 | if (likely(td)) { | |
888fda47 | 1298 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1299 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1300 | ||
1301 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1302 | list_del(&td->queue); | |
1303 | kfree(td); | |
1304 | } | |
1305 | ||
1306 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1307 | restart = 1; | |
1308 | ||
1309 | if (likely(urb)) { | |
1310 | if (usb_pipeisoc(urb->pipe)) | |
1311 | urb->start_frame = r8a66597_get_frame(hcd); | |
1312 | ||
2717568e | 1313 | r8a66597_urb_done(r8a66597, urb, status); |
5d304358 YS |
1314 | } |
1315 | ||
1316 | if (restart) { | |
1317 | td = r8a66597_get_td(r8a66597, pipenum); | |
1318 | if (unlikely(!td)) | |
1319 | return; | |
1320 | ||
1321 | start_transfer(r8a66597, td); | |
1322 | set_td_timer(r8a66597, td); | |
1323 | } | |
1324 | } | |
1325 | ||
5d304358 YS |
1326 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1327 | { | |
1328 | u16 tmp; | |
1329 | int rcv_len, bufsize, urb_len, size; | |
1330 | u16 *buf; | |
1331 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1332 | struct urb *urb; | |
1333 | int finish = 0; | |
dfd1e537 | 1334 | int status = 0; |
5d304358 YS |
1335 | |
1336 | if (unlikely(!td)) | |
1337 | return; | |
1338 | urb = td->urb; | |
1339 | ||
1340 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1341 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1342 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1343 | pipe_stop(r8a66597, td->pipe); |
1344 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1345 | printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); |
888fda47 | 1346 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1347 | return; |
1348 | } | |
1349 | ||
1350 | /* prepare parameters */ | |
1351 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1352 | if (usb_pipeisoc(urb->pipe)) { |
1353 | buf = (u16 *)(urb->transfer_buffer + | |
1354 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1355 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1356 | } else { | |
1357 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1358 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1359 | } | |
dfd1e537 AS |
1360 | bufsize = min(urb_len, (int) td->maxpacket); |
1361 | if (rcv_len <= bufsize) { | |
1362 | size = rcv_len; | |
1363 | } else { | |
1364 | size = bufsize; | |
1365 | status = -EOVERFLOW; | |
1366 | finish = 1; | |
1367 | } | |
5d304358 YS |
1368 | |
1369 | /* update parameters */ | |
1370 | urb->actual_length += size; | |
1371 | if (rcv_len == 0) | |
1372 | td->zero_packet = 1; | |
dfd1e537 | 1373 | if (rcv_len < bufsize) { |
5d304358 | 1374 | td->short_packet = 1; |
5d304358 YS |
1375 | } |
1376 | if (usb_pipeisoc(urb->pipe)) { | |
1377 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1378 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1379 | td->iso_cnt++; |
dfd1e537 | 1380 | finish = 0; |
5d304358 YS |
1381 | } |
1382 | ||
1383 | /* check transfer finish */ | |
b0d9efba | 1384 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1385 | pipe_stop(r8a66597, td->pipe); |
1386 | pipe_irq_disable(r8a66597, pipenum); | |
1387 | finish = 1; | |
1388 | } | |
1389 | ||
1390 | /* read fifo */ | |
1391 | if (urb->transfer_buffer) { | |
1392 | if (size == 0) | |
1393 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1394 | else | |
1395 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1396 | buf, size); | |
1397 | } | |
1398 | ||
888fda47 AS |
1399 | if (finish && pipenum != 0) |
1400 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1401 | } |
1402 | ||
1403 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1404 | { | |
1405 | u16 tmp; | |
1406 | int bufsize, size; | |
1407 | u16 *buf; | |
1408 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1409 | struct urb *urb; | |
1410 | ||
1411 | if (unlikely(!td)) | |
1412 | return; | |
1413 | urb = td->urb; | |
1414 | ||
1415 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1416 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1417 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1418 | pipe_stop(r8a66597, td->pipe); |
1419 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1420 | printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); |
888fda47 | 1421 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1422 | return; |
1423 | } | |
1424 | ||
1425 | /* prepare parameters */ | |
1426 | bufsize = td->maxpacket; | |
1427 | if (usb_pipeisoc(urb->pipe)) { | |
1428 | buf = (u16 *)(urb->transfer_buffer + | |
1429 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1430 | size = min(bufsize, | |
1431 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1432 | } else { | |
1433 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
16e2e5f6 | 1434 | size = min_t(u32, bufsize, |
5d304358 YS |
1435 | urb->transfer_buffer_length - urb->actual_length); |
1436 | } | |
1437 | ||
1438 | /* write fifo */ | |
1439 | if (pipenum > 0) | |
e294531d | 1440 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 YS |
1441 | if (urb->transfer_buffer) { |
1442 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1443 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1444 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1445 | } | |
1446 | ||
1447 | /* update parameters */ | |
1448 | urb->actual_length += size; | |
1449 | if (usb_pipeisoc(urb->pipe)) { | |
1450 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1451 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1452 | td->iso_cnt++; | |
1453 | } | |
1454 | ||
1455 | /* check transfer finish */ | |
1456 | if (check_transfer_finish(td, urb)) { | |
1457 | disable_irq_ready(r8a66597, pipenum); | |
1458 | enable_irq_empty(r8a66597, pipenum); | |
1459 | if (!usb_pipeisoc(urb->pipe)) | |
1460 | enable_irq_nrdy(r8a66597, pipenum); | |
1461 | } else | |
1462 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1463 | } | |
1464 | ||
1465 | ||
888fda47 | 1466 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1467 | { |
1468 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1469 | struct urb *urb; | |
1470 | u8 finish = 0; | |
1471 | ||
1472 | if (unlikely(!td)) | |
1473 | return; | |
1474 | urb = td->urb; | |
1475 | ||
1476 | switch (td->type) { | |
1477 | case USB_PID_IN: | |
1478 | case USB_PID_OUT: | |
5d304358 YS |
1479 | if (check_transfer_finish(td, urb)) |
1480 | td->type = USB_PID_ACK; | |
1481 | break; | |
1482 | case USB_PID_SETUP: | |
eb231054 | 1483 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1484 | td->type = USB_PID_ACK; |
eb231054 | 1485 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1486 | td->type = USB_PID_OUT; |
1487 | else | |
1488 | td->type = USB_PID_IN; | |
1489 | break; | |
1490 | case USB_PID_ACK: | |
1491 | finish = 1; | |
5d304358 YS |
1492 | break; |
1493 | } | |
1494 | ||
888fda47 AS |
1495 | if (finish || status != 0 || urb->unlinked) |
1496 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1497 | else |
1498 | start_transfer(r8a66597, td); | |
1499 | } | |
1500 | ||
888fda47 | 1501 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1502 | { |
1503 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1504 | ||
888fda47 | 1505 | if (td) { |
5d304358 YS |
1506 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1507 | ||
1508 | if (pid == PID_NAK) | |
888fda47 | 1509 | return -ECONNRESET; |
5d304358 | 1510 | else |
888fda47 | 1511 | return -EPIPE; |
5d304358 | 1512 | } |
888fda47 | 1513 | return 0; |
5d304358 YS |
1514 | } |
1515 | ||
1516 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1517 | { | |
1518 | u16 check; | |
1519 | u16 pipenum; | |
1520 | u16 mask; | |
1521 | struct r8a66597_td *td; | |
1522 | ||
1523 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1524 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1525 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1526 | if (mask & BRDY0) { |
1527 | td = r8a66597_get_td(r8a66597, 0); | |
1528 | if (td && td->type == USB_PID_IN) | |
1529 | packet_read(r8a66597, 0); | |
1530 | else | |
1531 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1532 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1533 | } |
1534 | ||
1535 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1536 | check = 1 << pipenum; | |
1537 | if (mask & check) { | |
1538 | td = r8a66597_get_td(r8a66597, pipenum); | |
1539 | if (unlikely(!td)) | |
1540 | continue; | |
1541 | ||
1542 | if (td->type == USB_PID_IN) | |
1543 | packet_read(r8a66597, pipenum); | |
1544 | else if (td->type == USB_PID_OUT) | |
1545 | packet_write(r8a66597, pipenum); | |
1546 | } | |
1547 | } | |
1548 | } | |
1549 | ||
1550 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1551 | { | |
1552 | u16 tmp; | |
1553 | u16 check; | |
1554 | u16 pipenum; | |
1555 | u16 mask; | |
1556 | struct r8a66597_td *td; | |
1557 | ||
1558 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1559 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1560 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1561 | if (mask & BEMP0) { |
1562 | cfifo_change(r8a66597, 0); | |
1563 | td = r8a66597_get_td(r8a66597, 0); | |
1564 | if (td && td->type != USB_PID_OUT) | |
1565 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1566 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1567 | } |
1568 | ||
1569 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1570 | check = 1 << pipenum; | |
1571 | if (mask & check) { | |
1572 | struct r8a66597_td *td; | |
1573 | td = r8a66597_get_td(r8a66597, pipenum); | |
1574 | if (unlikely(!td)) | |
1575 | continue; | |
1576 | ||
1577 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1578 | if ((tmp & INBUFM) == 0) { | |
1579 | disable_irq_empty(r8a66597, pipenum); | |
1580 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1581 | finish_request(r8a66597, td, pipenum, td->urb, |
1582 | 0); | |
5d304358 YS |
1583 | } |
1584 | } | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1589 | { | |
1590 | u16 check; | |
1591 | u16 pipenum; | |
1592 | u16 mask; | |
888fda47 | 1593 | int status; |
5d304358 YS |
1594 | |
1595 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1596 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1597 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1598 | if (mask & NRDY0) { |
1599 | cfifo_change(r8a66597, 0); | |
888fda47 | 1600 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1601 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1602 | check_next_phase(r8a66597, status); |
5d304358 YS |
1603 | } |
1604 | ||
1605 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1606 | check = 1 << pipenum; | |
1607 | if (mask & check) { | |
1608 | struct r8a66597_td *td; | |
1609 | td = r8a66597_get_td(r8a66597, pipenum); | |
1610 | if (unlikely(!td)) | |
1611 | continue; | |
1612 | ||
888fda47 | 1613 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1614 | pipe_irq_disable(r8a66597, pipenum); |
1615 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1616 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1617 | } |
1618 | } | |
1619 | } | |
1620 | ||
5d304358 YS |
1621 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) |
1622 | { | |
1623 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1624 | u16 intsts0, intsts1, intsts2; | |
1625 | u16 intenb0, intenb1, intenb2; | |
1626 | u16 mask0, mask1, mask2; | |
888fda47 | 1627 | int status; |
5d304358 YS |
1628 | |
1629 | spin_lock(&r8a66597->lock); | |
1630 | ||
1631 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1632 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1633 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1634 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1635 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1636 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1637 | ||
1638 | mask2 = intsts2 & intenb2; | |
1639 | mask1 = intsts1 & intenb1; | |
1640 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1641 | if (mask2) { | |
1642 | if (mask2 & ATTCH) { | |
e294531d | 1643 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1644 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1645 | ||
1646 | /* start usb bus sampling */ | |
54d0be9e | 1647 | start_root_hub_sampling(r8a66597, 1, 1); |
5d304358 YS |
1648 | } |
1649 | if (mask2 & DTCH) { | |
e294531d | 1650 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1651 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1652 | r8a66597_usb_disconnect(r8a66597, 1); | |
1653 | } | |
e1e609be YS |
1654 | if (mask2 & BCHG) { |
1655 | r8a66597_write(r8a66597, ~BCHG, INTSTS2); | |
1656 | r8a66597_bclr(r8a66597, BCHGE, INTENB2); | |
1657 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1658 | } | |
5d304358 YS |
1659 | } |
1660 | ||
1661 | if (mask1) { | |
1662 | if (mask1 & ATTCH) { | |
e294531d | 1663 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1664 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1665 | ||
1666 | /* start usb bus sampling */ | |
54d0be9e | 1667 | start_root_hub_sampling(r8a66597, 0, 1); |
5d304358 YS |
1668 | } |
1669 | if (mask1 & DTCH) { | |
e294531d | 1670 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1671 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1672 | r8a66597_usb_disconnect(r8a66597, 0); | |
1673 | } | |
e1e609be YS |
1674 | if (mask1 & BCHG) { |
1675 | r8a66597_write(r8a66597, ~BCHG, INTSTS1); | |
1676 | r8a66597_bclr(r8a66597, BCHGE, INTENB1); | |
1677 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1678 | } | |
1679 | ||
5d304358 | 1680 | if (mask1 & SIGN) { |
e294531d | 1681 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1682 | status = get_urb_error(r8a66597, 0); |
1683 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1684 | } |
1685 | if (mask1 & SACK) { | |
e294531d | 1686 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1687 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1688 | } |
1689 | } | |
1690 | if (mask0) { | |
1691 | if (mask0 & BRDY) | |
1692 | irq_pipe_ready(r8a66597); | |
1693 | if (mask0 & BEMP) | |
1694 | irq_pipe_empty(r8a66597); | |
1695 | if (mask0 & NRDY) | |
1696 | irq_pipe_nrdy(r8a66597); | |
1697 | } | |
1698 | ||
1699 | spin_unlock(&r8a66597->lock); | |
1700 | return IRQ_HANDLED; | |
1701 | } | |
1702 | ||
1703 | /* this function must be called with interrupt disabled */ | |
1704 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1705 | { | |
1706 | u16 tmp; | |
1707 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1708 | ||
1709 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1710 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1711 | ||
1712 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1713 | if ((tmp & USBRST) == USBRST) { | |
1714 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1715 | dvstctr_reg); | |
29fab0cd | 1716 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1717 | } else |
1718 | r8a66597_usb_connect(r8a66597, port); | |
1719 | } | |
1720 | ||
29fab0cd YS |
1721 | if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) { |
1722 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); | |
1723 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
1724 | } | |
1725 | ||
5d304358 YS |
1726 | if (rh->scount > 0) { |
1727 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1728 | if (tmp == rh->old_syssts) { | |
1729 | rh->scount--; | |
29fab0cd YS |
1730 | if (rh->scount == 0) |
1731 | r8a66597_check_syssts(r8a66597, port, tmp); | |
1732 | else | |
1733 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1734 | } else { |
1735 | rh->scount = R8A66597_MAX_SAMPLING; | |
1736 | rh->old_syssts = tmp; | |
29fab0cd | 1737 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1738 | } |
1739 | } | |
1740 | } | |
1741 | ||
6d879107 YS |
1742 | static void r8a66597_interval_timer(unsigned long _r8a66597) |
1743 | { | |
1744 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1745 | unsigned long flags; | |
1746 | u16 pipenum; | |
1747 | struct r8a66597_td *td; | |
1748 | ||
1749 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1750 | ||
1751 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1752 | if (!(r8a66597->interval_map & (1 << pipenum))) | |
1753 | continue; | |
1754 | if (timer_pending(&r8a66597->interval_timer[pipenum])) | |
1755 | continue; | |
1756 | ||
1757 | td = r8a66597_get_td(r8a66597, pipenum); | |
1758 | if (td) | |
1759 | start_transfer(r8a66597, td); | |
1760 | } | |
1761 | ||
1762 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1763 | } | |
1764 | ||
5d304358 YS |
1765 | static void r8a66597_td_timer(unsigned long _r8a66597) |
1766 | { | |
1767 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1768 | unsigned long flags; | |
1769 | u16 pipenum; | |
1770 | struct r8a66597_td *td, *new_td = NULL; | |
1771 | struct r8a66597_pipe *pipe; | |
1772 | ||
1773 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1774 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1775 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1776 | continue; | |
1777 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1778 | continue; | |
1779 | ||
1780 | td = r8a66597_get_td(r8a66597, pipenum); | |
1781 | if (!td) { | |
1782 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1783 | continue; | |
1784 | } | |
1785 | ||
1786 | if (td->urb->actual_length) { | |
1787 | set_td_timer(r8a66597, td); | |
1788 | break; | |
1789 | } | |
1790 | ||
1791 | pipe = td->pipe; | |
1792 | pipe_stop(r8a66597, pipe); | |
1793 | ||
1794 | new_td = td; | |
1795 | do { | |
1796 | list_move_tail(&new_td->queue, | |
1797 | &r8a66597->pipe_queue[pipenum]); | |
1798 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1799 | if (!new_td) { | |
1800 | new_td = td; | |
1801 | break; | |
1802 | } | |
1803 | } while (td != new_td && td->address == new_td->address); | |
1804 | ||
1805 | start_transfer(r8a66597, new_td); | |
1806 | ||
1807 | if (td == new_td) | |
1808 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1809 | else | |
1810 | set_td_timer(r8a66597, new_td); | |
1811 | break; | |
1812 | } | |
1813 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1814 | } | |
1815 | ||
1816 | static void r8a66597_timer(unsigned long _r8a66597) | |
1817 | { | |
1818 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1819 | unsigned long flags; | |
58639646 | 1820 | int port; |
5d304358 YS |
1821 | |
1822 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1823 | ||
719a72b7 | 1824 | for (port = 0; port < r8a66597->max_root_hub; port++) |
58639646 | 1825 | r8a66597_root_hub_control(r8a66597, port); |
5d304358 YS |
1826 | |
1827 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1828 | } | |
1829 | ||
1830 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1831 | { | |
1832 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1833 | ||
1834 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1835 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1836 | return 1; | |
1837 | else | |
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | static int r8a66597_start(struct usb_hcd *hcd) | |
1842 | { | |
1843 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1844 | |
1845 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1846 | return enable_controller(r8a66597); |
5d304358 YS |
1847 | } |
1848 | ||
1849 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1850 | { | |
1851 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1852 | ||
1853 | disable_controller(r8a66597); | |
1854 | } | |
1855 | ||
1856 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1857 | { | |
1858 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1859 | u16 root_port, hub_port; | |
1860 | ||
1861 | if (usb_address == 0) { | |
719a72b7 | 1862 | get_port_number(r8a66597, urb->dev->devpath, |
5d304358 YS |
1863 | &root_port, &hub_port); |
1864 | set_devadd_reg(r8a66597, 0, | |
1865 | get_r8a66597_usb_speed(urb->dev->speed), | |
1866 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1867 | hub_port, root_port); | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1872 | struct urb *urb, | |
e294531d | 1873 | struct usb_host_endpoint *hep) |
5d304358 YS |
1874 | { |
1875 | struct r8a66597_td *td; | |
1876 | u16 pipenum; | |
1877 | ||
e294531d | 1878 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1879 | if (td == NULL) |
1880 | return NULL; | |
1881 | ||
1882 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1883 | td->pipenum = pipenum; | |
1884 | td->pipe = hep->hcpriv; | |
1885 | td->urb = urb; | |
1886 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1887 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1888 | !usb_pipein(urb->pipe)); | |
1889 | if (usb_pipecontrol(urb->pipe)) | |
1890 | td->type = USB_PID_SETUP; | |
1891 | else if (usb_pipein(urb->pipe)) | |
1892 | td->type = USB_PID_IN; | |
1893 | else | |
1894 | td->type = USB_PID_OUT; | |
1895 | INIT_LIST_HEAD(&td->queue); | |
1896 | ||
1897 | return td; | |
1898 | } | |
1899 | ||
1900 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1901 | struct urb *urb, |
1902 | gfp_t mem_flags) | |
1903 | { | |
e9df41c5 | 1904 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1905 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1906 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1907 | int ret, request = 0; |
5d304358 YS |
1908 | unsigned long flags; |
1909 | ||
1910 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1911 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1912 | ret = -ENODEV; | |
e9df41c5 | 1913 | goto error_not_linked; |
5d304358 YS |
1914 | } |
1915 | ||
e9df41c5 AS |
1916 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1917 | if (ret) | |
1918 | goto error_not_linked; | |
1919 | ||
5d304358 | 1920 | if (!hep->hcpriv) { |
e294531d YS |
1921 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1922 | GFP_ATOMIC); | |
5d304358 YS |
1923 | if (!hep->hcpriv) { |
1924 | ret = -ENOMEM; | |
1925 | goto error; | |
1926 | } | |
1927 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1928 | if (usb_pipeendpoint(urb->pipe)) | |
1929 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1930 | } | |
1931 | ||
1932 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1933 | init_pipe_config(r8a66597, urb); | |
1934 | ||
1935 | set_address_zero(r8a66597, urb); | |
e294531d | 1936 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1937 | if (td == NULL) { |
1938 | ret = -ENOMEM; | |
1939 | goto error; | |
1940 | } | |
1941 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1942 | request = 1; | |
1943 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1944 | urb->hcpriv = td; |
5d304358 YS |
1945 | |
1946 | if (request) { | |
6d879107 YS |
1947 | if (td->pipe->info.timer_interval) { |
1948 | r8a66597->interval_map |= 1 << td->pipenum; | |
1949 | mod_timer(&r8a66597->interval_timer[td->pipenum], | |
1950 | jiffies + msecs_to_jiffies( | |
1951 | td->pipe->info.timer_interval)); | |
1952 | } else { | |
1953 | ret = start_transfer(r8a66597, td); | |
1954 | if (ret < 0) { | |
1955 | list_del(&td->queue); | |
1956 | kfree(td); | |
1957 | } | |
5d304358 YS |
1958 | } |
1959 | } else | |
1960 | set_td_timer(r8a66597, td); | |
1961 | ||
1962 | error: | |
e9df41c5 AS |
1963 | if (ret) |
1964 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1965 | error_not_linked: | |
5d304358 YS |
1966 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1967 | return ret; | |
1968 | } | |
1969 | ||
e9df41c5 AS |
1970 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1971 | int status) | |
5d304358 YS |
1972 | { |
1973 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1974 | struct r8a66597_td *td; | |
1975 | unsigned long flags; | |
e9df41c5 | 1976 | int rc; |
5d304358 YS |
1977 | |
1978 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1979 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1980 | if (rc) | |
1981 | goto done; | |
1982 | ||
5d304358 YS |
1983 | if (urb->hcpriv) { |
1984 | td = urb->hcpriv; | |
1985 | pipe_stop(r8a66597, td->pipe); | |
1986 | pipe_irq_disable(r8a66597, td->pipenum); | |
1987 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1988 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1989 | } |
e9df41c5 | 1990 | done: |
5d304358 | 1991 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1992 | return rc; |
5d304358 YS |
1993 | } |
1994 | ||
1995 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1996 | struct usb_host_endpoint *hep) | |
1997 | { | |
1998 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1999 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
2000 | struct r8a66597_td *td; | |
2001 | struct urb *urb = NULL; | |
2002 | u16 pipenum; | |
2003 | unsigned long flags; | |
2004 | ||
2005 | if (pipe == NULL) | |
2006 | return; | |
2007 | pipenum = pipe->info.pipenum; | |
2008 | ||
2009 | if (pipenum == 0) { | |
2010 | kfree(hep->hcpriv); | |
2011 | hep->hcpriv = NULL; | |
2012 | return; | |
2013 | } | |
2014 | ||
2015 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2016 | pipe_stop(r8a66597, pipe); | |
2017 | pipe_irq_disable(r8a66597, pipenum); | |
2018 | disable_irq_empty(r8a66597, pipenum); | |
2019 | td = r8a66597_get_td(r8a66597, pipenum); | |
2020 | if (td) | |
2021 | urb = td->urb; | |
888fda47 | 2022 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
2023 | kfree(hep->hcpriv); |
2024 | hep->hcpriv = NULL; | |
2025 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2026 | } | |
2027 | ||
2028 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
2029 | { | |
2030 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2031 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
2032 | } | |
2033 | ||
2034 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
2035 | { | |
2036 | int chix; | |
2037 | ||
2038 | if (udev->state == USB_STATE_CONFIGURED && | |
2039 | udev->parent && udev->parent->devnum > 1 && | |
2040 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
2041 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
2042 | ||
2043 | for (chix = 0; chix < udev->maxchild; chix++) { | |
2044 | struct usb_device *childdev = udev->children[chix]; | |
2045 | ||
2046 | if (childdev) | |
2047 | collect_usb_address_map(childdev, map); | |
2048 | } | |
2049 | } | |
2050 | ||
2051 | /* this function must be called with interrupt disabled */ | |
2052 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
2053 | int addr) | |
2054 | { | |
2055 | struct r8a66597_device *dev; | |
2056 | struct list_head *list = &r8a66597->child_device; | |
2057 | ||
2058 | list_for_each_entry(dev, list, device_list) { | |
5d304358 YS |
2059 | if (dev->usb_address != addr) |
2060 | continue; | |
2061 | ||
2062 | return dev; | |
2063 | } | |
2064 | ||
802f389a | 2065 | printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); |
5d304358 YS |
2066 | return NULL; |
2067 | } | |
2068 | ||
2069 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
2070 | struct usb_device *root_hub, | |
2071 | unsigned long *map) | |
2072 | { | |
2073 | int i, j, addr; | |
2074 | unsigned long diff; | |
2075 | unsigned long flags; | |
2076 | ||
2077 | for (i = 0; i < 4; i++) { | |
2078 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
2079 | if (!diff) | |
2080 | continue; | |
2081 | ||
2082 | for (j = 0; j < 32; j++) { | |
2083 | if (!(diff & (1 << j))) | |
2084 | continue; | |
2085 | ||
2086 | addr = i * 32 + j; | |
2087 | if (map[i] & (1 << j)) | |
2088 | set_child_connect_map(r8a66597, addr); | |
2089 | else { | |
2090 | struct r8a66597_device *dev; | |
2091 | ||
2092 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2093 | dev = get_r8a66597_device(r8a66597, addr); | |
2094 | disable_r8a66597_pipe_all(r8a66597, dev); | |
d8359334 | 2095 | free_usb_address(r8a66597, dev, 0); |
5d304358 YS |
2096 | put_child_connect_map(r8a66597, addr); |
2097 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2098 | } | |
2099 | } | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
2104 | struct usb_hcd *hcd) | |
2105 | { | |
2106 | struct usb_bus *bus; | |
2107 | unsigned long now_map[4]; | |
2108 | ||
2109 | memset(now_map, 0, sizeof(now_map)); | |
2110 | ||
2111 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
2112 | if (!bus->root_hub) | |
2113 | continue; | |
2114 | ||
2115 | if (bus->busnum != hcd->self.busnum) | |
2116 | continue; | |
2117 | ||
2118 | collect_usb_address_map(bus->root_hub, now_map); | |
2119 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
2120 | } | |
2121 | } | |
2122 | ||
2123 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2124 | { | |
2125 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2126 | unsigned long flags; | |
2127 | int i; | |
2128 | ||
2129 | r8a66597_check_detect_child(r8a66597, hcd); | |
2130 | ||
2131 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2132 | ||
2133 | *buf = 0; /* initialize (no change) */ | |
2134 | ||
719a72b7 | 2135 | for (i = 0; i < r8a66597->max_root_hub; i++) { |
5d304358 YS |
2136 | if (r8a66597->root_hub[i].port & 0xffff0000) |
2137 | *buf |= 1 << (i + 1); | |
2138 | } | |
2139 | ||
2140 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2141 | ||
2142 | return (*buf != 0); | |
2143 | } | |
2144 | ||
2145 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
2146 | struct usb_hub_descriptor *desc) | |
2147 | { | |
2148 | desc->bDescriptorType = 0x29; | |
2149 | desc->bHubContrCurrent = 0; | |
719a72b7 | 2150 | desc->bNbrPorts = r8a66597->max_root_hub; |
5d304358 YS |
2151 | desc->bDescLength = 9; |
2152 | desc->bPwrOn2PwrGood = 0; | |
2153 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
719a72b7 | 2154 | desc->bitmap[0] = ((1 << r8a66597->max_root_hub) - 1) << 1; |
5d304358 YS |
2155 | desc->bitmap[1] = ~0; |
2156 | } | |
2157 | ||
2158 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2159 | u16 wIndex, char *buf, u16 wLength) | |
2160 | { | |
2161 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2162 | int ret; | |
2163 | int port = (wIndex & 0x00FF) - 1; | |
2164 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2165 | unsigned long flags; | |
2166 | ||
2167 | ret = 0; | |
2168 | ||
2169 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2170 | switch (typeReq) { | |
2171 | case ClearHubFeature: | |
2172 | case SetHubFeature: | |
2173 | switch (wValue) { | |
2174 | case C_HUB_OVER_CURRENT: | |
2175 | case C_HUB_LOCAL_POWER: | |
2176 | break; | |
2177 | default: | |
2178 | goto error; | |
2179 | } | |
2180 | break; | |
2181 | case ClearPortFeature: | |
719a72b7 | 2182 | if (wIndex > r8a66597->max_root_hub) |
5d304358 YS |
2183 | goto error; |
2184 | if (wLength != 0) | |
2185 | goto error; | |
2186 | ||
2187 | switch (wValue) { | |
2188 | case USB_PORT_FEAT_ENABLE: | |
e1e609be | 2189 | rh->port &= ~(1 << USB_PORT_FEAT_POWER); |
5d304358 YS |
2190 | break; |
2191 | case USB_PORT_FEAT_SUSPEND: | |
2192 | break; | |
2193 | case USB_PORT_FEAT_POWER: | |
2194 | r8a66597_port_power(r8a66597, port, 0); | |
2195 | break; | |
2196 | case USB_PORT_FEAT_C_ENABLE: | |
2197 | case USB_PORT_FEAT_C_SUSPEND: | |
2198 | case USB_PORT_FEAT_C_CONNECTION: | |
2199 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2200 | case USB_PORT_FEAT_C_RESET: | |
2201 | break; | |
2202 | default: | |
2203 | goto error; | |
2204 | } | |
2205 | rh->port &= ~(1 << wValue); | |
2206 | break; | |
2207 | case GetHubDescriptor: | |
2208 | r8a66597_hub_descriptor(r8a66597, | |
2209 | (struct usb_hub_descriptor *)buf); | |
2210 | break; | |
2211 | case GetHubStatus: | |
2212 | *buf = 0x00; | |
2213 | break; | |
2214 | case GetPortStatus: | |
719a72b7 | 2215 | if (wIndex > r8a66597->max_root_hub) |
5d304358 | 2216 | goto error; |
fd05e720 | 2217 | *(__le32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2218 | break; |
2219 | case SetPortFeature: | |
719a72b7 | 2220 | if (wIndex > r8a66597->max_root_hub) |
5d304358 YS |
2221 | goto error; |
2222 | if (wLength != 0) | |
2223 | goto error; | |
2224 | ||
2225 | switch (wValue) { | |
2226 | case USB_PORT_FEAT_SUSPEND: | |
2227 | break; | |
2228 | case USB_PORT_FEAT_POWER: | |
2229 | r8a66597_port_power(r8a66597, port, 1); | |
2230 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2231 | break; | |
2232 | case USB_PORT_FEAT_RESET: { | |
2233 | struct r8a66597_device *dev = rh->dev; | |
2234 | ||
2235 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2236 | ||
2237 | disable_r8a66597_pipe_all(r8a66597, dev); | |
d8359334 | 2238 | free_usb_address(r8a66597, dev, 1); |
5d304358 YS |
2239 | |
2240 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2241 | get_dvstctr_reg(port)); | |
2242 | mod_timer(&r8a66597->rh_timer, | |
2243 | jiffies + msecs_to_jiffies(50)); | |
2244 | } | |
2245 | break; | |
2246 | default: | |
2247 | goto error; | |
2248 | } | |
2249 | rh->port |= 1 << wValue; | |
2250 | break; | |
2251 | default: | |
2252 | error: | |
2253 | ret = -EPIPE; | |
2254 | break; | |
2255 | } | |
2256 | ||
2257 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2258 | return ret; | |
2259 | } | |
2260 | ||
e1e609be YS |
2261 | #if defined(CONFIG_PM) |
2262 | static int r8a66597_bus_suspend(struct usb_hcd *hcd) | |
2263 | { | |
2264 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2265 | int port; | |
2266 | ||
2267 | dbg("%s", __func__); | |
2268 | ||
719a72b7 | 2269 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
e1e609be YS |
2270 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; |
2271 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2272 | ||
2273 | if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE))) | |
2274 | continue; | |
2275 | ||
2276 | dbg("suspend port = %d", port); | |
2277 | r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */ | |
2278 | rh->port |= 1 << USB_PORT_FEAT_SUSPEND; | |
2279 | ||
2280 | if (rh->dev->udev->do_remote_wakeup) { | |
2281 | msleep(3); /* waiting last SOF */ | |
2282 | r8a66597_bset(r8a66597, RWUPE, dvstctr_reg); | |
2283 | r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port)); | |
2284 | r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port)); | |
2285 | } | |
2286 | } | |
2287 | ||
2288 | r8a66597->bus_suspended = 1; | |
2289 | ||
2290 | return 0; | |
2291 | } | |
2292 | ||
2293 | static int r8a66597_bus_resume(struct usb_hcd *hcd) | |
2294 | { | |
2295 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2296 | int port; | |
2297 | ||
2298 | dbg("%s", __func__); | |
2299 | ||
719a72b7 | 2300 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
e1e609be YS |
2301 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; |
2302 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2303 | ||
2304 | if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND))) | |
2305 | continue; | |
2306 | ||
2307 | dbg("resume port = %d", port); | |
2308 | rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND); | |
2309 | rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND; | |
2310 | r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); | |
2311 | msleep(50); | |
2312 | r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); | |
2313 | } | |
2314 | ||
2315 | return 0; | |
2316 | ||
2317 | } | |
2318 | #else | |
2319 | #define r8a66597_bus_suspend NULL | |
2320 | #define r8a66597_bus_resume NULL | |
2321 | #endif | |
2322 | ||
5d304358 YS |
2323 | static struct hc_driver r8a66597_hc_driver = { |
2324 | .description = hcd_name, | |
2325 | .hcd_priv_size = sizeof(struct r8a66597), | |
2326 | .irq = r8a66597_irq, | |
2327 | ||
2328 | /* | |
2329 | * generic hardware linkage | |
2330 | */ | |
2331 | .flags = HCD_USB2, | |
2332 | ||
2333 | .start = r8a66597_start, | |
2334 | .stop = r8a66597_stop, | |
2335 | ||
2336 | /* | |
2337 | * managing i/o requests and associated device resources | |
2338 | */ | |
2339 | .urb_enqueue = r8a66597_urb_enqueue, | |
2340 | .urb_dequeue = r8a66597_urb_dequeue, | |
2341 | .endpoint_disable = r8a66597_endpoint_disable, | |
2342 | ||
2343 | /* | |
2344 | * periodic schedule support | |
2345 | */ | |
2346 | .get_frame_number = r8a66597_get_frame, | |
2347 | ||
2348 | /* | |
2349 | * root hub support | |
2350 | */ | |
2351 | .hub_status_data = r8a66597_hub_status_data, | |
2352 | .hub_control = r8a66597_hub_control, | |
e1e609be YS |
2353 | .bus_suspend = r8a66597_bus_suspend, |
2354 | .bus_resume = r8a66597_bus_resume, | |
5d304358 YS |
2355 | }; |
2356 | ||
2357 | #if defined(CONFIG_PM) | |
ae1cef6e | 2358 | static int r8a66597_suspend(struct device *dev) |
5d304358 | 2359 | { |
ae1cef6e | 2360 | struct r8a66597 *r8a66597 = dev_get_drvdata(dev); |
e1e609be YS |
2361 | int port; |
2362 | ||
2363 | dbg("%s", __func__); | |
2364 | ||
2365 | disable_controller(r8a66597); | |
2366 | ||
719a72b7 | 2367 | for (port = 0; port < r8a66597->max_root_hub; port++) { |
e1e609be YS |
2368 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; |
2369 | ||
2370 | rh->port = 0x00000000; | |
2371 | } | |
2372 | ||
5d304358 YS |
2373 | return 0; |
2374 | } | |
2375 | ||
ae1cef6e | 2376 | static int r8a66597_resume(struct device *dev) |
5d304358 | 2377 | { |
ae1cef6e | 2378 | struct r8a66597 *r8a66597 = dev_get_drvdata(dev); |
e1e609be YS |
2379 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); |
2380 | ||
2381 | dbg("%s", __func__); | |
2382 | ||
2383 | enable_controller(r8a66597); | |
2384 | usb_root_hub_lost_power(hcd->self.root_hub); | |
2385 | ||
5d304358 YS |
2386 | return 0; |
2387 | } | |
ae1cef6e | 2388 | |
47145210 | 2389 | static const struct dev_pm_ops r8a66597_dev_pm_ops = { |
ae1cef6e MD |
2390 | .suspend = r8a66597_suspend, |
2391 | .resume = r8a66597_resume, | |
3725f28b YS |
2392 | .poweroff = r8a66597_suspend, |
2393 | .restore = r8a66597_resume, | |
ae1cef6e MD |
2394 | }; |
2395 | ||
2396 | #define R8A66597_DEV_PM_OPS (&r8a66597_dev_pm_ops) | |
5d304358 | 2397 | #else /* if defined(CONFIG_PM) */ |
ae1cef6e | 2398 | #define R8A66597_DEV_PM_OPS NULL |
5d304358 YS |
2399 | #endif |
2400 | ||
2401 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2402 | { | |
2403 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2404 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2405 | ||
2406 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2407 | usb_remove_hcd(hcd); |
ca0677a2 | 2408 | iounmap((void *)r8a66597->reg); |
719a72b7 MD |
2409 | #ifdef CONFIG_HAVE_CLK |
2410 | if (r8a66597->pdata->on_chip) | |
2411 | clk_put(r8a66597->clk); | |
765786e0 | 2412 | #endif |
5d304358 YS |
2413 | usb_put_hcd(hcd); |
2414 | return 0; | |
2415 | } | |
2416 | ||
8864bd86 | 2417 | static int __devinit r8a66597_probe(struct platform_device *pdev) |
5d304358 | 2418 | { |
719a72b7 | 2419 | #ifdef CONFIG_HAVE_CLK |
765786e0 MD |
2420 | char clk_name[8]; |
2421 | #endif | |
27140219 | 2422 | struct resource *res = NULL, *ires; |
5d304358 YS |
2423 | int irq = -1; |
2424 | void __iomem *reg = NULL; | |
2425 | struct usb_hcd *hcd = NULL; | |
2426 | struct r8a66597 *r8a66597; | |
2427 | int ret = 0; | |
2428 | int i; | |
0bf32b80 | 2429 | unsigned long irq_trigger; |
5d304358 YS |
2430 | |
2431 | if (pdev->dev.dma_mask) { | |
2432 | ret = -EINVAL; | |
802f389a | 2433 | dev_err(&pdev->dev, "dma not supported\n"); |
5d304358 YS |
2434 | goto clean_up; |
2435 | } | |
2436 | ||
0a2e5b9b | 2437 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
5d304358 YS |
2438 | if (!res) { |
2439 | ret = -ENODEV; | |
0a2e5b9b | 2440 | dev_err(&pdev->dev, "platform_get_resource error.\n"); |
5d304358 YS |
2441 | goto clean_up; |
2442 | } | |
2443 | ||
27140219 MZ |
2444 | ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
2445 | if (!ires) { | |
5d304358 | 2446 | ret = -ENODEV; |
802f389a GKH |
2447 | dev_err(&pdev->dev, |
2448 | "platform_get_resource IORESOURCE_IRQ error.\n"); | |
5d304358 YS |
2449 | goto clean_up; |
2450 | } | |
2451 | ||
27140219 MZ |
2452 | irq = ires->start; |
2453 | irq_trigger = ires->flags & IRQF_TRIGGER_MASK; | |
2454 | ||
0a2e5b9b | 2455 | reg = ioremap(res->start, resource_size(res)); |
5d304358 YS |
2456 | if (reg == NULL) { |
2457 | ret = -ENOMEM; | |
802f389a | 2458 | dev_err(&pdev->dev, "ioremap error.\n"); |
5d304358 YS |
2459 | goto clean_up; |
2460 | } | |
2461 | ||
5effabbe YS |
2462 | if (pdev->dev.platform_data == NULL) { |
2463 | dev_err(&pdev->dev, "no platform data\n"); | |
2464 | ret = -ENODEV; | |
2465 | goto clean_up; | |
2466 | } | |
2467 | ||
5d304358 YS |
2468 | /* initialize hcd */ |
2469 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2470 | if (!hcd) { | |
2471 | ret = -ENOMEM; | |
802f389a | 2472 | dev_err(&pdev->dev, "Failed to create hcd\n"); |
5d304358 YS |
2473 | goto clean_up; |
2474 | } | |
2475 | r8a66597 = hcd_to_r8a66597(hcd); | |
2476 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2477 | dev_set_drvdata(&pdev->dev, r8a66597); | |
5effabbe YS |
2478 | r8a66597->pdata = pdev->dev.platform_data; |
2479 | r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; | |
5d304358 | 2480 | |
719a72b7 MD |
2481 | if (r8a66597->pdata->on_chip) { |
2482 | #ifdef CONFIG_HAVE_CLK | |
2483 | snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); | |
2484 | r8a66597->clk = clk_get(&pdev->dev, clk_name); | |
2485 | if (IS_ERR(r8a66597->clk)) { | |
2486 | dev_err(&pdev->dev, "cannot get clock \"%s\"\n", | |
2487 | clk_name); | |
2488 | ret = PTR_ERR(r8a66597->clk); | |
2489 | goto clean_up2; | |
2490 | } | |
765786e0 | 2491 | #endif |
719a72b7 MD |
2492 | r8a66597->max_root_hub = 1; |
2493 | } else | |
2494 | r8a66597->max_root_hub = 2; | |
765786e0 | 2495 | |
5d304358 YS |
2496 | spin_lock_init(&r8a66597->lock); |
2497 | init_timer(&r8a66597->rh_timer); | |
2498 | r8a66597->rh_timer.function = r8a66597_timer; | |
2499 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2500 | r8a66597->reg = (unsigned long)reg; | |
2501 | ||
e5ff15be MD |
2502 | /* make sure no interrupts are pending */ |
2503 | ret = r8a66597_clock_enable(r8a66597); | |
2504 | if (ret < 0) | |
2505 | goto clean_up3; | |
2506 | disable_controller(r8a66597); | |
2507 | ||
5d304358 YS |
2508 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { |
2509 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2510 | init_timer(&r8a66597->td_timer[i]); | |
2511 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2512 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
6d879107 YS |
2513 | setup_timer(&r8a66597->interval_timer[i], |
2514 | r8a66597_interval_timer, | |
2515 | (unsigned long)r8a66597); | |
5d304358 YS |
2516 | } |
2517 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2518 | ||
2519 | hcd->rsrc_start = res->start; | |
27140219 | 2520 | |
0bf32b80 | 2521 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); |
5d304358 | 2522 | if (ret != 0) { |
802f389a | 2523 | dev_err(&pdev->dev, "Failed to add hcd\n"); |
765786e0 | 2524 | goto clean_up3; |
5d304358 YS |
2525 | } |
2526 | ||
2527 | return 0; | |
2528 | ||
765786e0 | 2529 | clean_up3: |
719a72b7 MD |
2530 | #ifdef CONFIG_HAVE_CLK |
2531 | if (r8a66597->pdata->on_chip) | |
2532 | clk_put(r8a66597->clk); | |
765786e0 | 2533 | clean_up2: |
d6435102 | 2534 | #endif |
765786e0 MD |
2535 | usb_put_hcd(hcd); |
2536 | ||
5d304358 YS |
2537 | clean_up: |
2538 | if (reg) | |
2539 | iounmap(reg); | |
5d304358 YS |
2540 | |
2541 | return ret; | |
2542 | } | |
2543 | ||
2544 | static struct platform_driver r8a66597_driver = { | |
2545 | .probe = r8a66597_probe, | |
2546 | .remove = r8a66597_remove, | |
5d304358 YS |
2547 | .driver = { |
2548 | .name = (char *) hcd_name, | |
f4fce61d | 2549 | .owner = THIS_MODULE, |
ae1cef6e | 2550 | .pm = R8A66597_DEV_PM_OPS, |
5d304358 YS |
2551 | }, |
2552 | }; | |
2553 | ||
2554 | static int __init r8a66597_init(void) | |
2555 | { | |
2556 | if (usb_disabled()) | |
2557 | return -ENODEV; | |
2558 | ||
5909f6ea GKH |
2559 | printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, |
2560 | DRIVER_VERSION); | |
5d304358 YS |
2561 | return platform_driver_register(&r8a66597_driver); |
2562 | } | |
2563 | module_init(r8a66597_init); | |
2564 | ||
2565 | static void __exit r8a66597_cleanup(void) | |
2566 | { | |
2567 | platform_driver_unregister(&r8a66597_driver); | |
2568 | } | |
2569 | module_exit(r8a66597_cleanup); | |
2570 |