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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> | |
29 | #include <linux/smp_lock.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/timer.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/list.h> | |
35 | #include <linux/interrupt.h> | |
36 | #include <linux/usb.h> | |
37 | #include <linux/platform_device.h> | |
e294531d YS |
38 | #include <linux/io.h> |
39 | #include <linux/irq.h> | |
5d304358 YS |
40 | |
41 | #include "../core/hcd.h" | |
42 | #include "r8a66597.h" | |
43 | ||
44 | MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); | |
45 | MODULE_LICENSE("GPL"); | |
46 | MODULE_AUTHOR("Yoshihiro Shimoda"); | |
f4fce61d | 47 | MODULE_ALIAS("platform:r8a66597_hcd"); |
5d304358 | 48 | |
f6ace2c9 | 49 | #define DRIVER_VERSION "29 May 2007" |
5d304358 YS |
50 | |
51 | static const char hcd_name[] = "r8a66597_hcd"; | |
52 | ||
53 | /* module parameters */ | |
54 | static unsigned short clock = XTAL12; | |
55 | module_param(clock, ushort, 0644); | |
e294531d YS |
56 | MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 " |
57 | "(default=0)"); | |
58 | ||
5d304358 YS |
59 | static unsigned short vif = LDRV; |
60 | module_param(vif, ushort, 0644); | |
61 | MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0(default=32768)"); | |
e294531d YS |
62 | |
63 | static unsigned short endian; | |
5d304358 | 64 | module_param(endian, ushort, 0644); |
e294531d YS |
65 | MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)"); |
66 | ||
5d304358 YS |
67 | static unsigned short irq_sense = INTL; |
68 | module_param(irq_sense, ushort, 0644); | |
e294531d YS |
69 | MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0 " |
70 | "(default=32)"); | |
5d304358 YS |
71 | |
72 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); | |
73 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
74 | ||
75 | /* this function must be called with interrupt disabled */ | |
76 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
77 | unsigned long reg) | |
78 | { | |
79 | u16 tmp; | |
80 | ||
81 | tmp = r8a66597_read(r8a66597, INTENB0); | |
82 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
83 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
84 | r8a66597_write(r8a66597, tmp, INTENB0); | |
85 | } | |
86 | ||
87 | /* this function must be called with interrupt disabled */ | |
88 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
89 | unsigned long reg) | |
90 | { | |
91 | u16 tmp; | |
92 | ||
93 | tmp = r8a66597_read(r8a66597, INTENB0); | |
94 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
95 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
96 | r8a66597_write(r8a66597, tmp, INTENB0); | |
97 | } | |
98 | ||
99 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
100 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
101 | { | |
102 | u16 val; | |
103 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
104 | ||
105 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
106 | r8a66597_write(r8a66597, val, devadd_reg); | |
107 | } | |
108 | ||
109 | static int enable_controller(struct r8a66597 *r8a66597) | |
110 | { | |
111 | u16 tmp; | |
112 | int i = 0; | |
113 | ||
114 | do { | |
115 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
116 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
117 | if (i++ > 1000) { | |
118 | err("register access fail."); | |
119 | return -ENXIO; | |
120 | } | |
121 | } while ((tmp & USBE) != USBE); | |
122 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
123 | r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0); | |
124 | ||
125 | i = 0; | |
126 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
127 | do { | |
128 | msleep(1); | |
129 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
130 | if (i++ > 500) { | |
131 | err("register access fail."); | |
132 | return -ENXIO; | |
133 | } | |
134 | } while ((tmp & SCKE) != SCKE); | |
135 | ||
136 | r8a66597_bset(r8a66597, DCFM | DRPD, SYSCFG0); | |
137 | r8a66597_bset(r8a66597, DRPD, SYSCFG1); | |
138 | ||
139 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
140 | r8a66597_bset(r8a66597, HSE, SYSCFG0); | |
141 | r8a66597_bset(r8a66597, HSE, SYSCFG1); | |
142 | r8a66597_bset(r8a66597, USBE, SYSCFG0); | |
143 | ||
144 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
145 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
146 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
147 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
148 | ||
149 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, DMA0CFG); | |
150 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, DMA1CFG); | |
151 | ||
152 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); | |
153 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
154 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
155 | ||
156 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); | |
157 | ||
158 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
159 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); | |
160 | r8a66597_bset(r8a66597, ATTCHE, INTENB1); | |
161 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); | |
162 | r8a66597_bset(r8a66597, ATTCHE, INTENB2); | |
163 | ||
164 | return 0; | |
165 | } | |
166 | ||
167 | static void disable_controller(struct r8a66597 *r8a66597) | |
168 | { | |
169 | u16 tmp; | |
170 | ||
171 | r8a66597_write(r8a66597, 0, INTENB0); | |
172 | r8a66597_write(r8a66597, 0, INTENB1); | |
173 | r8a66597_write(r8a66597, 0, INTENB2); | |
174 | r8a66597_write(r8a66597, 0, INTSTS0); | |
175 | r8a66597_write(r8a66597, 0, INTSTS1); | |
176 | r8a66597_write(r8a66597, 0, INTSTS2); | |
177 | ||
178 | r8a66597_port_power(r8a66597, 0, 0); | |
179 | r8a66597_port_power(r8a66597, 1, 0); | |
180 | ||
181 | do { | |
182 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
183 | udelay(640); | |
184 | } while (tmp == EDGESTS); | |
185 | ||
186 | r8a66597_bclr(r8a66597, DCFM | DRPD, SYSCFG0); | |
187 | r8a66597_bclr(r8a66597, DRPD, SYSCFG1); | |
188 | r8a66597_bclr(r8a66597, HSE, SYSCFG0); | |
189 | r8a66597_bclr(r8a66597, HSE, SYSCFG1); | |
190 | ||
191 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
192 | udelay(1); | |
193 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); | |
194 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
195 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
196 | } | |
197 | ||
198 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
199 | struct usb_device *udev) | |
200 | { | |
201 | struct r8a66597_device *dev; | |
202 | ||
203 | if (udev->parent && udev->parent->devnum != 1) | |
204 | udev = udev->parent; | |
205 | ||
206 | dev = dev_get_drvdata(&udev->dev); | |
207 | if (dev) | |
208 | return dev->address; | |
209 | else | |
210 | return 0; | |
211 | } | |
212 | ||
213 | static int is_child_device(char *devpath) | |
214 | { | |
215 | return (devpath[2] ? 1 : 0); | |
216 | } | |
217 | ||
218 | static int is_hub_limit(char *devpath) | |
219 | { | |
220 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
221 | } | |
222 | ||
223 | static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) | |
224 | { | |
225 | if (root_port) { | |
226 | *root_port = (devpath[0] & 0x0F) - 1; | |
227 | if (*root_port >= R8A66597_MAX_ROOT_HUB) | |
228 | err("illegal root port number"); | |
229 | } | |
230 | if (hub_port) | |
231 | *hub_port = devpath[2] & 0x0F; | |
232 | } | |
233 | ||
234 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
235 | { | |
236 | u16 usbspd = 0; | |
237 | ||
238 | switch (speed) { | |
239 | case USB_SPEED_LOW: | |
240 | usbspd = LSMODE; | |
241 | break; | |
242 | case USB_SPEED_FULL: | |
243 | usbspd = FSMODE; | |
244 | break; | |
245 | case USB_SPEED_HIGH: | |
246 | usbspd = HSMODE; | |
247 | break; | |
248 | default: | |
249 | err("unknown speed"); | |
250 | break; | |
251 | } | |
252 | ||
253 | return usbspd; | |
254 | } | |
255 | ||
256 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
257 | { | |
258 | int idx; | |
259 | ||
260 | idx = address / 32; | |
261 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
262 | } | |
263 | ||
264 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
265 | { | |
266 | int idx; | |
267 | ||
268 | idx = address / 32; | |
269 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
270 | } | |
271 | ||
272 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
273 | { | |
274 | u16 pipenum = pipe->info.pipenum; | |
275 | unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; | |
276 | unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
277 | unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
278 | ||
279 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
280 | dma_ch = R8A66597_PIPE_NO_DMA; | |
281 | ||
282 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
283 | pipe->fifosel = fifosel[dma_ch]; | |
284 | pipe->fifoctr = fifoctr[dma_ch]; | |
285 | ||
286 | if (pipenum == 0) | |
287 | pipe->pipectr = DCPCTR; | |
288 | else | |
289 | pipe->pipectr = get_pipectr_addr(pipenum); | |
290 | ||
291 | if (check_bulk_or_isoc(pipenum)) { | |
292 | pipe->pipetre = get_pipetre_addr(pipenum); | |
293 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
294 | } else { | |
295 | pipe->pipetre = 0; | |
296 | pipe->pipetrn = 0; | |
297 | } | |
298 | } | |
299 | ||
300 | static struct r8a66597_device * | |
301 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
302 | { | |
303 | if (usb_pipedevice(urb->pipe) == 0) | |
304 | return &r8a66597->device0; | |
305 | ||
306 | return dev_get_drvdata(&urb->dev->dev); | |
307 | } | |
308 | ||
309 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
310 | struct urb *urb, u8 addr) | |
311 | { | |
312 | struct r8a66597_device *dev; | |
313 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
314 | ||
e294531d | 315 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
316 | if (dev == NULL) |
317 | return -ENOMEM; | |
318 | ||
319 | dev_set_drvdata(&urb->dev->dev, dev); | |
320 | dev->udev = urb->dev; | |
321 | dev->address = addr; | |
322 | dev->usb_address = usb_address; | |
323 | dev->state = USB_STATE_ADDRESS; | |
324 | dev->ep_in_toggle = 0; | |
325 | dev->ep_out_toggle = 0; | |
326 | INIT_LIST_HEAD(&dev->device_list); | |
327 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
328 | ||
329 | get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port); | |
330 | if (!is_child_device(urb->dev->devpath)) | |
331 | r8a66597->root_hub[dev->root_port].dev = dev; | |
332 | ||
333 | set_devadd_reg(r8a66597, dev->address, | |
334 | get_r8a66597_usb_speed(urb->dev->speed), | |
335 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
336 | dev->hub_port, dev->root_port); | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
341 | /* this function must be called with interrupt disabled */ | |
342 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
343 | { | |
344 | u8 addr; /* R8A66597's address */ | |
345 | struct r8a66597_device *dev; | |
346 | ||
347 | if (is_hub_limit(urb->dev->devpath)) { | |
348 | err("Externel hub limit reached."); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
353 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
354 | return dev->address; | |
355 | ||
356 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
357 | if (r8a66597->address_map & (1 << addr)) | |
358 | continue; | |
359 | ||
360 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
361 | r8a66597->address_map |= 1 << addr; | |
362 | ||
363 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
364 | return 0; | |
365 | ||
366 | return addr; | |
367 | } | |
368 | ||
369 | err("cannot communicate with a USB device more than 10.(%x)", | |
370 | r8a66597->address_map); | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
375 | /* this function must be called with interrupt disabled */ | |
376 | static void free_usb_address(struct r8a66597 *r8a66597, | |
377 | struct r8a66597_device *dev) | |
378 | { | |
379 | int port; | |
380 | ||
381 | if (!dev) | |
382 | return; | |
383 | ||
384 | dbg("free_addr: addr=%d", dev->address); | |
385 | ||
386 | dev->state = USB_STATE_DEFAULT; | |
387 | r8a66597->address_map &= ~(1 << dev->address); | |
388 | dev->address = 0; | |
389 | dev_set_drvdata(&dev->udev->dev, NULL); | |
390 | list_del(&dev->device_list); | |
391 | kfree(dev); | |
392 | ||
393 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
394 | if (r8a66597->root_hub[port].dev == dev) { | |
395 | r8a66597->root_hub[port].dev = NULL; | |
396 | break; | |
397 | } | |
398 | } | |
399 | } | |
400 | ||
401 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
402 | u16 mask, u16 loop) | |
403 | { | |
404 | u16 tmp; | |
405 | int i = 0; | |
406 | ||
407 | do { | |
408 | tmp = r8a66597_read(r8a66597, reg); | |
409 | if (i++ > 1000000) { | |
410 | err("register%lx, loop %x is timeout", reg, loop); | |
411 | break; | |
412 | } | |
413 | ndelay(1); | |
414 | } while ((tmp & mask) != loop); | |
415 | } | |
416 | ||
417 | /* this function must be called with interrupt disabled */ | |
418 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
419 | { | |
420 | u16 tmp; | |
421 | ||
422 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
423 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
424 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
425 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
426 | } | |
427 | ||
428 | /* this function must be called with interrupt disabled */ | |
429 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
430 | { | |
431 | u16 tmp; | |
432 | ||
433 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
434 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
435 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
436 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
437 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
438 | } | |
439 | ||
440 | /* this function must be called with interrupt disabled */ | |
441 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
442 | struct r8a66597_pipe *pipe) | |
443 | { | |
444 | u16 tmp; | |
445 | ||
446 | if (!pipe || pipe->info.pipenum == 0) | |
447 | return; | |
448 | ||
449 | pipe_stop(r8a66597, pipe); | |
450 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
451 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
452 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
453 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
454 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
455 | } | |
456 | ||
457 | /* this function must be called with interrupt disabled */ | |
458 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
459 | struct r8a66597_pipe *pipe, int toggle) | |
460 | { | |
461 | if (toggle) | |
462 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
463 | else | |
464 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
465 | } | |
466 | ||
467 | /* this function must be called with interrupt disabled */ | |
468 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
469 | { | |
470 | r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); | |
471 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); | |
472 | } | |
473 | ||
474 | /* this function must be called with interrupt disabled */ | |
475 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
476 | struct r8a66597_pipe *pipe) | |
477 | { | |
478 | cfifo_change(r8a66597, 0); | |
479 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL); | |
480 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL); | |
481 | ||
482 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE, | |
483 | pipe->fifosel); | |
484 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
485 | } | |
486 | ||
487 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
488 | { | |
489 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
490 | ||
491 | if (usb_pipeendpoint(urb->pipe) == 0) | |
492 | return 0; | |
493 | else | |
494 | return pipe->info.pipenum; | |
495 | } | |
496 | ||
497 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
498 | { | |
499 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
500 | ||
501 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
502 | } | |
503 | ||
504 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
505 | int urb_pipe) | |
506 | { | |
507 | if (!dev) | |
508 | return NULL; | |
509 | ||
510 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
511 | } | |
512 | ||
513 | /* this function must be called with interrupt disabled */ | |
514 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
515 | struct r8a66597_pipe *pipe, | |
516 | struct urb *urb, int set) | |
517 | { | |
518 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
519 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
520 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
521 | ||
522 | if (!toggle) | |
523 | return; | |
524 | ||
525 | if (set) | |
526 | *toggle |= 1 << endpoint; | |
527 | else | |
528 | *toggle &= ~(1 << endpoint); | |
529 | } | |
530 | ||
531 | /* this function must be called with interrupt disabled */ | |
532 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
533 | struct r8a66597_pipe *pipe, | |
534 | struct urb *urb) | |
535 | { | |
536 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
537 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
538 | else | |
539 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
540 | } | |
541 | ||
542 | /* this function must be called with interrupt disabled */ | |
543 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
544 | struct r8a66597_pipe *pipe, | |
545 | struct urb *urb) | |
546 | { | |
547 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
548 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
549 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
550 | ||
f6ace2c9 YS |
551 | if (!toggle) |
552 | return; | |
553 | ||
5d304358 YS |
554 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
555 | } | |
556 | ||
557 | /* this function must be called with interrupt disabled */ | |
558 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
559 | struct r8a66597_pipe_info *info) | |
560 | { | |
561 | u16 val = 0; | |
562 | ||
563 | if (info->pipenum == 0) | |
564 | return; | |
565 | ||
566 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
567 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
568 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
569 | if (!info->dir_in) | |
570 | val |= R8A66597_DIR; | |
571 | if (info->type == R8A66597_BULK && info->dir_in) | |
572 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
573 | val |= info->type | info->epnum; | |
574 | r8a66597_write(r8a66597, val, PIPECFG); | |
575 | ||
576 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
577 | PIPEBUF); | |
578 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
579 | PIPEMAXP); | |
580 | if (info->interval) | |
581 | info->interval--; | |
582 | r8a66597_write(r8a66597, info->interval, PIPEPERI); | |
583 | } | |
584 | ||
585 | ||
586 | ||
587 | /* this function must be called with interrupt disabled */ | |
588 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
589 | { | |
590 | struct r8a66597_pipe_info *info; | |
591 | struct urb *urb = td->urb; | |
592 | ||
593 | if (td->pipenum > 0) { | |
594 | info = &td->pipe->info; | |
595 | cfifo_change(r8a66597, 0); | |
596 | pipe_buffer_setting(r8a66597, info); | |
597 | ||
598 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
599 | usb_pipeout(urb->pipe)) && | |
600 | !usb_pipecontrol(urb->pipe)) { | |
601 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
602 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
603 | clear_all_buffer(r8a66597, td->pipe); | |
604 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
605 | usb_pipeout(urb->pipe), 1); | |
606 | } | |
607 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
608 | } | |
609 | } | |
610 | ||
611 | /* this function must be called with interrupt disabled */ | |
612 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
613 | struct usb_endpoint_descriptor *ep) | |
614 | { | |
615 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
616 | ||
617 | memset(array, 0, sizeof(array)); | |
e294531d YS |
618 | switch (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { |
619 | case USB_ENDPOINT_XFER_BULK: | |
5d304358 YS |
620 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
621 | array[i++] = 4; | |
622 | else { | |
623 | array[i++] = 3; | |
624 | array[i++] = 5; | |
625 | } | |
e294531d YS |
626 | break; |
627 | case USB_ENDPOINT_XFER_INT: | |
5d304358 YS |
628 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) { |
629 | array[i++] = 6; | |
630 | array[i++] = 7; | |
631 | array[i++] = 8; | |
632 | } else | |
633 | array[i++] = 9; | |
e294531d YS |
634 | break; |
635 | case USB_ENDPOINT_XFER_ISOC: | |
5d304358 YS |
636 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
637 | array[i++] = 2; | |
638 | else | |
639 | array[i++] = 1; | |
e294531d YS |
640 | break; |
641 | default: | |
642 | err("Illegal type"); | |
643 | return 0; | |
644 | } | |
5d304358 YS |
645 | |
646 | i = 1; | |
647 | min = array[0]; | |
648 | while (array[i] != 0) { | |
649 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
650 | min = array[i]; | |
651 | i++; | |
652 | } | |
653 | ||
654 | return min; | |
655 | } | |
656 | ||
657 | static u16 get_r8a66597_type(__u8 type) | |
658 | { | |
659 | u16 r8a66597_type; | |
660 | ||
e294531d | 661 | switch (type) { |
5d304358 YS |
662 | case USB_ENDPOINT_XFER_BULK: |
663 | r8a66597_type = R8A66597_BULK; | |
664 | break; | |
665 | case USB_ENDPOINT_XFER_INT: | |
666 | r8a66597_type = R8A66597_INT; | |
667 | break; | |
668 | case USB_ENDPOINT_XFER_ISOC: | |
669 | r8a66597_type = R8A66597_ISO; | |
670 | break; | |
671 | default: | |
672 | err("Illegal type"); | |
673 | r8a66597_type = 0x0000; | |
674 | break; | |
675 | } | |
676 | ||
677 | return r8a66597_type; | |
678 | } | |
679 | ||
680 | static u16 get_bufnum(u16 pipenum) | |
681 | { | |
682 | u16 bufnum = 0; | |
683 | ||
684 | if (pipenum == 0) | |
685 | bufnum = 0; | |
686 | else if (check_bulk_or_isoc(pipenum)) | |
687 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
688 | else if (check_interrupt(pipenum)) | |
689 | bufnum = 4 + (pipenum - 6); | |
690 | else | |
691 | err("Illegal pipenum (%d)", pipenum); | |
692 | ||
693 | return bufnum; | |
694 | } | |
695 | ||
696 | static u16 get_buf_bsize(u16 pipenum) | |
697 | { | |
698 | u16 buf_bsize = 0; | |
699 | ||
700 | if (pipenum == 0) | |
701 | buf_bsize = 3; | |
702 | else if (check_bulk_or_isoc(pipenum)) | |
703 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
704 | else if (check_interrupt(pipenum)) | |
705 | buf_bsize = 0; | |
706 | else | |
707 | err("Illegal pipenum (%d)", pipenum); | |
708 | ||
709 | return buf_bsize; | |
710 | } | |
711 | ||
712 | /* this function must be called with interrupt disabled */ | |
713 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
714 | struct r8a66597_device *dev, | |
715 | struct r8a66597_pipe *pipe, | |
716 | struct urb *urb) | |
717 | { | |
718 | int i; | |
719 | struct r8a66597_pipe_info *info = &pipe->info; | |
720 | ||
721 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
722 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
723 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
724 | continue; | |
725 | ||
726 | info("address %d, EndpointAddress 0x%02x use DMA FIFO", | |
727 | usb_pipedevice(urb->pipe), | |
728 | info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum | |
729 | : info->epnum); | |
730 | ||
731 | r8a66597->dma_map |= 1 << i; | |
732 | dev->dma_map |= 1 << i; | |
733 | set_pipe_reg_addr(pipe, i); | |
734 | ||
735 | cfifo_change(r8a66597, 0); | |
736 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, | |
737 | MBW | CURPIPE, pipe->fifosel); | |
738 | ||
739 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
740 | pipe->info.pipenum); | |
741 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
742 | break; | |
743 | } | |
744 | } | |
745 | } | |
746 | ||
747 | /* this function must be called with interrupt disabled */ | |
748 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
749 | struct usb_host_endpoint *hep, | |
750 | struct r8a66597_pipe_info *info) | |
751 | { | |
752 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
753 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
754 | ||
755 | dbg("enable_pipe:"); | |
756 | ||
757 | pipe->info = *info; | |
758 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
759 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
760 | dev->pipe_cnt[pipe->info.pipenum]++; | |
761 | ||
762 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
763 | } | |
764 | ||
765 | /* this function must be called with interrupt disabled */ | |
766 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
767 | { | |
768 | struct r8a66597_td *td, *next; | |
769 | struct urb *urb; | |
770 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
771 | ||
772 | if (list_empty(list)) | |
773 | return; | |
774 | ||
775 | list_for_each_entry_safe(td, next, list, queue) { | |
776 | if (!td) | |
777 | continue; | |
778 | if (td->address != address) | |
779 | continue; | |
780 | ||
781 | urb = td->urb; | |
782 | list_del(&td->queue); | |
783 | kfree(td); | |
784 | ||
785 | if (urb) { | |
e9df41c5 AS |
786 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), |
787 | urb); | |
788 | ||
5d304358 | 789 | spin_unlock(&r8a66597->lock); |
4a00027d AS |
790 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, |
791 | -ENODEV); | |
5d304358 YS |
792 | spin_lock(&r8a66597->lock); |
793 | } | |
794 | break; | |
795 | } | |
796 | } | |
797 | ||
798 | /* this function must be called with interrupt disabled */ | |
799 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
800 | struct r8a66597_device *dev) | |
801 | { | |
802 | int check_ep0 = 0; | |
803 | u16 pipenum; | |
804 | ||
805 | if (!dev) | |
806 | return; | |
807 | ||
808 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
809 | if (!dev->pipe_cnt[pipenum]) | |
810 | continue; | |
811 | ||
812 | if (!check_ep0) { | |
813 | check_ep0 = 1; | |
814 | force_dequeue(r8a66597, 0, dev->address); | |
815 | } | |
816 | ||
817 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
818 | dev->pipe_cnt[pipenum] = 0; | |
819 | force_dequeue(r8a66597, pipenum, dev->address); | |
820 | } | |
821 | ||
822 | dbg("disable_pipe"); | |
823 | ||
824 | r8a66597->dma_map &= ~(dev->dma_map); | |
825 | dev->dma_map = 0; | |
826 | } | |
827 | ||
828 | /* this function must be called with interrupt disabled */ | |
829 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
830 | struct usb_host_endpoint *hep, | |
831 | struct usb_endpoint_descriptor *ep) | |
832 | { | |
833 | struct r8a66597_pipe_info info; | |
834 | ||
835 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
836 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
837 | info.epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
05eac910 | 838 | info.maxpacket = le16_to_cpu(ep->wMaxPacketSize); |
5d304358 YS |
839 | info.type = get_r8a66597_type(ep->bmAttributes |
840 | & USB_ENDPOINT_XFERTYPE_MASK); | |
841 | info.bufnum = get_bufnum(info.pipenum); | |
842 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
843 | info.interval = ep->bInterval; | |
844 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
845 | info.dir_in = 1; | |
846 | else | |
847 | info.dir_in = 0; | |
848 | ||
849 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
850 | } | |
851 | ||
852 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
853 | { | |
854 | struct r8a66597_device *dev; | |
855 | ||
856 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
857 | dev->state = USB_STATE_CONFIGURED; | |
858 | } | |
859 | ||
860 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
861 | u16 pipenum) | |
862 | { | |
863 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
864 | enable_irq_empty(r8a66597, pipenum); | |
865 | else | |
866 | enable_irq_ready(r8a66597, pipenum); | |
867 | ||
868 | if (!usb_pipeisoc(urb->pipe)) | |
869 | enable_irq_nrdy(r8a66597, pipenum); | |
870 | } | |
871 | ||
872 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
873 | { | |
874 | disable_irq_ready(r8a66597, pipenum); | |
875 | disable_irq_nrdy(r8a66597, pipenum); | |
876 | } | |
877 | ||
878 | /* this function must be called with interrupt disabled */ | |
879 | static void r8a66597_usb_preconnect(struct r8a66597 *r8a66597, int port) | |
880 | { | |
881 | r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_CONNECTION) | |
882 | | (1 << USB_PORT_FEAT_C_CONNECTION); | |
e294531d | 883 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
5d304358 YS |
884 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); |
885 | } | |
886 | ||
887 | /* this function must be called with interrupt disabled */ | |
888 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
889 | { | |
890 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
891 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
892 | ||
893 | if (speed == HSMODE) | |
894 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
895 | else if (speed == LSMODE) | |
896 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
897 | ||
898 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
899 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
900 | } | |
901 | ||
902 | /* this function must be called with interrupt disabled */ | |
903 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
904 | { | |
905 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
906 | ||
907 | r8a66597->root_hub[port].port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
908 | r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_C_CONNECTION); | |
909 | ||
910 | disable_r8a66597_pipe_all(r8a66597, dev); | |
911 | free_usb_address(r8a66597, dev); | |
912 | ||
913 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
914 | } | |
915 | ||
916 | /* this function must be called with interrupt disabled */ | |
917 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
918 | struct r8a66597_td *td) | |
919 | { | |
920 | int i; | |
921 | u16 *p = (u16 *)td->urb->setup_packet; | |
922 | unsigned long setup_addr = USBREQ; | |
923 | ||
924 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
925 | DCPMAXP); | |
e294531d | 926 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
927 | |
928 | for (i = 0; i < 4; i++) { | |
05eac910 | 929 | r8a66597_write(r8a66597, cpu_to_le16(p[i]), setup_addr); |
5d304358 YS |
930 | setup_addr += 2; |
931 | } | |
932 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
933 | } | |
934 | ||
935 | /* this function must be called with interrupt disabled */ | |
936 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
937 | struct r8a66597_td *td) | |
938 | { | |
939 | struct urb *urb = td->urb; | |
940 | ||
941 | if (usb_pipecontrol(urb->pipe)) { | |
942 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
943 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
944 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
945 | if (urb->actual_length == 0) { | |
946 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
947 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
948 | } | |
949 | pipe_irq_disable(r8a66597, td->pipenum); | |
950 | pipe_start(r8a66597, td->pipe); | |
951 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
952 | } else { | |
953 | if (urb->actual_length == 0) { | |
954 | pipe_irq_disable(r8a66597, td->pipenum); | |
955 | pipe_setting(r8a66597, td); | |
956 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 957 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
958 | |
959 | if (td->pipe->pipetre) { | |
960 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 961 | td->pipe->pipetre); |
5d304358 | 962 | r8a66597_write(r8a66597, |
e294531d YS |
963 | (urb->transfer_buffer_length |
964 | + td->maxpacket - 1) | |
965 | / td->maxpacket, | |
966 | td->pipe->pipetrn); | |
5d304358 | 967 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 968 | td->pipe->pipetre); |
5d304358 YS |
969 | } |
970 | ||
971 | pipe_start(r8a66597, td->pipe); | |
972 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
973 | } | |
974 | } | |
975 | } | |
976 | ||
977 | /* this function must be called with interrupt disabled */ | |
978 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
979 | struct r8a66597_td *td) | |
980 | { | |
981 | u16 tmp; | |
982 | struct urb *urb = td->urb; | |
983 | ||
984 | if (usb_pipecontrol(urb->pipe)) { | |
985 | pipe_stop(r8a66597, td->pipe); | |
986 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
987 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
988 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
989 | if (urb->actual_length == 0) { | |
990 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
991 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
992 | } | |
993 | } else { | |
994 | if (urb->actual_length == 0) | |
995 | pipe_setting(r8a66597, td); | |
996 | if (td->pipe->pipetre) | |
997 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
998 | } | |
e294531d | 999 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1000 | |
1001 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1002 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1003 | if (unlikely((tmp & FRDY) == 0)) | |
1004 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1005 | else | |
1006 | packet_write(r8a66597, td->pipenum); | |
1007 | pipe_start(r8a66597, td->pipe); | |
1008 | } | |
1009 | ||
1010 | /* this function must be called with interrupt disabled */ | |
1011 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1012 | struct r8a66597_td *td) | |
1013 | { | |
1014 | struct urb *urb = td->urb; | |
1015 | ||
1016 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1017 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1018 | |
1019 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1020 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1021 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1022 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d YS |
1023 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
1024 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1025 | r8a66597_write(r8a66597, BVAL, CFIFOCTR); | |
5d304358 YS |
1026 | enable_irq_empty(r8a66597, 0); |
1027 | } else { | |
1028 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1029 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1030 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1031 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1032 | enable_irq_ready(r8a66597, 0); |
1033 | } | |
1034 | enable_irq_nrdy(r8a66597, 0); | |
1035 | pipe_start(r8a66597, td->pipe); | |
1036 | } | |
1037 | ||
e3a09051 YS |
1038 | static int is_set_address(unsigned char *setup_packet) |
1039 | { | |
1040 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1041 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1042 | return 1; | |
1043 | else | |
1044 | return 0; | |
1045 | } | |
1046 | ||
5d304358 YS |
1047 | /* this function must be called with interrupt disabled */ |
1048 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1049 | { | |
1050 | BUG_ON(!td); | |
1051 | ||
1052 | switch (td->type) { | |
1053 | case USB_PID_SETUP: | |
e3a09051 | 1054 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1055 | td->set_address = 1; |
1056 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1057 | td->urb); | |
1058 | if (td->urb->setup_packet[2] == 0) | |
1059 | return -EPIPE; | |
1060 | } | |
1061 | prepare_setup_packet(r8a66597, td); | |
1062 | break; | |
1063 | case USB_PID_IN: | |
1064 | prepare_packet_read(r8a66597, td); | |
1065 | break; | |
1066 | case USB_PID_OUT: | |
1067 | prepare_packet_write(r8a66597, td); | |
1068 | break; | |
1069 | case USB_PID_ACK: | |
1070 | prepare_status_packet(r8a66597, td); | |
1071 | break; | |
1072 | default: | |
1073 | err("invalid type."); | |
1074 | break; | |
1075 | } | |
1076 | ||
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1081 | { | |
1082 | if (usb_pipeisoc(urb->pipe)) { | |
1083 | if (urb->number_of_packets == td->iso_cnt) | |
1084 | return 1; | |
1085 | } | |
1086 | ||
1087 | /* control or bulk or interrupt */ | |
1088 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1089 | (td->short_packet) || (td->zero_packet)) | |
1090 | return 1; | |
1091 | ||
1092 | return 0; | |
1093 | } | |
1094 | ||
1095 | /* this function must be called with interrupt disabled */ | |
1096 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1097 | { | |
1098 | unsigned long time; | |
1099 | ||
1100 | BUG_ON(!td); | |
1101 | ||
1102 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1103 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1104 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1105 | switch (usb_pipetype(td->urb->pipe)) { | |
1106 | case PIPE_INTERRUPT: | |
1107 | case PIPE_ISOCHRONOUS: | |
1108 | time = 30; | |
1109 | break; | |
1110 | default: | |
1111 | time = 300; | |
1112 | break; | |
1113 | } | |
1114 | ||
1115 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1116 | jiffies + msecs_to_jiffies(time)); | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1121 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1122 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1123 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1124 | { |
1125 | int restart = 0; | |
1126 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1127 | ||
1128 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1129 | ||
1130 | if (likely(td)) { | |
888fda47 | 1131 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1132 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1133 | ||
1134 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1135 | list_del(&td->queue); | |
1136 | kfree(td); | |
1137 | } | |
1138 | ||
1139 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1140 | restart = 1; | |
1141 | ||
1142 | if (likely(urb)) { | |
1143 | if (usb_pipeisoc(urb->pipe)) | |
1144 | urb->start_frame = r8a66597_get_frame(hcd); | |
1145 | ||
e9df41c5 | 1146 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); |
5d304358 | 1147 | spin_unlock(&r8a66597->lock); |
4a00027d | 1148 | usb_hcd_giveback_urb(hcd, urb, status); |
5d304358 YS |
1149 | spin_lock(&r8a66597->lock); |
1150 | } | |
1151 | ||
1152 | if (restart) { | |
1153 | td = r8a66597_get_td(r8a66597, pipenum); | |
1154 | if (unlikely(!td)) | |
1155 | return; | |
1156 | ||
1157 | start_transfer(r8a66597, td); | |
1158 | set_td_timer(r8a66597, td); | |
1159 | } | |
1160 | } | |
1161 | ||
5d304358 YS |
1162 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1163 | { | |
1164 | u16 tmp; | |
1165 | int rcv_len, bufsize, urb_len, size; | |
1166 | u16 *buf; | |
1167 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1168 | struct urb *urb; | |
1169 | int finish = 0; | |
dfd1e537 | 1170 | int status = 0; |
5d304358 YS |
1171 | |
1172 | if (unlikely(!td)) | |
1173 | return; | |
1174 | urb = td->urb; | |
1175 | ||
1176 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1177 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1178 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1179 | pipe_stop(r8a66597, td->pipe); |
1180 | pipe_irq_disable(r8a66597, pipenum); | |
1181 | err("in fifo not ready (%d)", pipenum); | |
888fda47 | 1182 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1183 | return; |
1184 | } | |
1185 | ||
1186 | /* prepare parameters */ | |
1187 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1188 | if (usb_pipeisoc(urb->pipe)) { |
1189 | buf = (u16 *)(urb->transfer_buffer + | |
1190 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1191 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1192 | } else { | |
1193 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1194 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1195 | } | |
dfd1e537 AS |
1196 | bufsize = min(urb_len, (int) td->maxpacket); |
1197 | if (rcv_len <= bufsize) { | |
1198 | size = rcv_len; | |
1199 | } else { | |
1200 | size = bufsize; | |
1201 | status = -EOVERFLOW; | |
1202 | finish = 1; | |
1203 | } | |
5d304358 YS |
1204 | |
1205 | /* update parameters */ | |
1206 | urb->actual_length += size; | |
1207 | if (rcv_len == 0) | |
1208 | td->zero_packet = 1; | |
dfd1e537 | 1209 | if (rcv_len < bufsize) { |
5d304358 | 1210 | td->short_packet = 1; |
5d304358 YS |
1211 | } |
1212 | if (usb_pipeisoc(urb->pipe)) { | |
1213 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1214 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1215 | td->iso_cnt++; |
dfd1e537 | 1216 | finish = 0; |
5d304358 YS |
1217 | } |
1218 | ||
1219 | /* check transfer finish */ | |
b0d9efba | 1220 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1221 | pipe_stop(r8a66597, td->pipe); |
1222 | pipe_irq_disable(r8a66597, pipenum); | |
1223 | finish = 1; | |
1224 | } | |
1225 | ||
1226 | /* read fifo */ | |
1227 | if (urb->transfer_buffer) { | |
1228 | if (size == 0) | |
1229 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1230 | else | |
1231 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1232 | buf, size); | |
1233 | } | |
1234 | ||
888fda47 AS |
1235 | if (finish && pipenum != 0) |
1236 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1237 | } |
1238 | ||
1239 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1240 | { | |
1241 | u16 tmp; | |
1242 | int bufsize, size; | |
1243 | u16 *buf; | |
1244 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1245 | struct urb *urb; | |
1246 | ||
1247 | if (unlikely(!td)) | |
1248 | return; | |
1249 | urb = td->urb; | |
1250 | ||
1251 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1252 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1253 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1254 | pipe_stop(r8a66597, td->pipe); |
1255 | pipe_irq_disable(r8a66597, pipenum); | |
1256 | err("out write fifo not ready. (%d)", pipenum); | |
888fda47 | 1257 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1258 | return; |
1259 | } | |
1260 | ||
1261 | /* prepare parameters */ | |
1262 | bufsize = td->maxpacket; | |
1263 | if (usb_pipeisoc(urb->pipe)) { | |
1264 | buf = (u16 *)(urb->transfer_buffer + | |
1265 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1266 | size = min(bufsize, | |
1267 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1268 | } else { | |
1269 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
1270 | size = min((int)bufsize, | |
1271 | urb->transfer_buffer_length - urb->actual_length); | |
1272 | } | |
1273 | ||
1274 | /* write fifo */ | |
1275 | if (pipenum > 0) | |
e294531d | 1276 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 YS |
1277 | if (urb->transfer_buffer) { |
1278 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1279 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1280 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1281 | } | |
1282 | ||
1283 | /* update parameters */ | |
1284 | urb->actual_length += size; | |
1285 | if (usb_pipeisoc(urb->pipe)) { | |
1286 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1287 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1288 | td->iso_cnt++; | |
1289 | } | |
1290 | ||
1291 | /* check transfer finish */ | |
1292 | if (check_transfer_finish(td, urb)) { | |
1293 | disable_irq_ready(r8a66597, pipenum); | |
1294 | enable_irq_empty(r8a66597, pipenum); | |
1295 | if (!usb_pipeisoc(urb->pipe)) | |
1296 | enable_irq_nrdy(r8a66597, pipenum); | |
1297 | } else | |
1298 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1299 | } | |
1300 | ||
1301 | ||
888fda47 | 1302 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1303 | { |
1304 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1305 | struct urb *urb; | |
1306 | u8 finish = 0; | |
1307 | ||
1308 | if (unlikely(!td)) | |
1309 | return; | |
1310 | urb = td->urb; | |
1311 | ||
1312 | switch (td->type) { | |
1313 | case USB_PID_IN: | |
1314 | case USB_PID_OUT: | |
5d304358 YS |
1315 | if (check_transfer_finish(td, urb)) |
1316 | td->type = USB_PID_ACK; | |
1317 | break; | |
1318 | case USB_PID_SETUP: | |
eb231054 | 1319 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1320 | td->type = USB_PID_ACK; |
eb231054 | 1321 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1322 | td->type = USB_PID_OUT; |
1323 | else | |
1324 | td->type = USB_PID_IN; | |
1325 | break; | |
1326 | case USB_PID_ACK: | |
1327 | finish = 1; | |
5d304358 YS |
1328 | break; |
1329 | } | |
1330 | ||
888fda47 AS |
1331 | if (finish || status != 0 || urb->unlinked) |
1332 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1333 | else |
1334 | start_transfer(r8a66597, td); | |
1335 | } | |
1336 | ||
888fda47 | 1337 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1338 | { |
1339 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1340 | ||
888fda47 | 1341 | if (td) { |
5d304358 YS |
1342 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1343 | ||
1344 | if (pid == PID_NAK) | |
888fda47 | 1345 | return -ECONNRESET; |
5d304358 | 1346 | else |
888fda47 | 1347 | return -EPIPE; |
5d304358 | 1348 | } |
888fda47 | 1349 | return 0; |
5d304358 YS |
1350 | } |
1351 | ||
1352 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1353 | { | |
1354 | u16 check; | |
1355 | u16 pipenum; | |
1356 | u16 mask; | |
1357 | struct r8a66597_td *td; | |
1358 | ||
1359 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1360 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1361 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1362 | if (mask & BRDY0) { |
1363 | td = r8a66597_get_td(r8a66597, 0); | |
1364 | if (td && td->type == USB_PID_IN) | |
1365 | packet_read(r8a66597, 0); | |
1366 | else | |
1367 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1368 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1369 | } |
1370 | ||
1371 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1372 | check = 1 << pipenum; | |
1373 | if (mask & check) { | |
1374 | td = r8a66597_get_td(r8a66597, pipenum); | |
1375 | if (unlikely(!td)) | |
1376 | continue; | |
1377 | ||
1378 | if (td->type == USB_PID_IN) | |
1379 | packet_read(r8a66597, pipenum); | |
1380 | else if (td->type == USB_PID_OUT) | |
1381 | packet_write(r8a66597, pipenum); | |
1382 | } | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1387 | { | |
1388 | u16 tmp; | |
1389 | u16 check; | |
1390 | u16 pipenum; | |
1391 | u16 mask; | |
1392 | struct r8a66597_td *td; | |
1393 | ||
1394 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1395 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1396 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1397 | if (mask & BEMP0) { |
1398 | cfifo_change(r8a66597, 0); | |
1399 | td = r8a66597_get_td(r8a66597, 0); | |
1400 | if (td && td->type != USB_PID_OUT) | |
1401 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1402 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1403 | } |
1404 | ||
1405 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1406 | check = 1 << pipenum; | |
1407 | if (mask & check) { | |
1408 | struct r8a66597_td *td; | |
1409 | td = r8a66597_get_td(r8a66597, pipenum); | |
1410 | if (unlikely(!td)) | |
1411 | continue; | |
1412 | ||
1413 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1414 | if ((tmp & INBUFM) == 0) { | |
1415 | disable_irq_empty(r8a66597, pipenum); | |
1416 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1417 | finish_request(r8a66597, td, pipenum, td->urb, |
1418 | 0); | |
5d304358 YS |
1419 | } |
1420 | } | |
1421 | } | |
1422 | } | |
1423 | ||
1424 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1425 | { | |
1426 | u16 check; | |
1427 | u16 pipenum; | |
1428 | u16 mask; | |
888fda47 | 1429 | int status; |
5d304358 YS |
1430 | |
1431 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1432 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1433 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1434 | if (mask & NRDY0) { |
1435 | cfifo_change(r8a66597, 0); | |
888fda47 | 1436 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1437 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1438 | check_next_phase(r8a66597, status); |
5d304358 YS |
1439 | } |
1440 | ||
1441 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1442 | check = 1 << pipenum; | |
1443 | if (mask & check) { | |
1444 | struct r8a66597_td *td; | |
1445 | td = r8a66597_get_td(r8a66597, pipenum); | |
1446 | if (unlikely(!td)) | |
1447 | continue; | |
1448 | ||
888fda47 | 1449 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1450 | pipe_irq_disable(r8a66597, pipenum); |
1451 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1452 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1453 | } |
1454 | } | |
1455 | } | |
1456 | ||
1457 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port) | |
1458 | { | |
1459 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1460 | ||
1461 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1462 | rh->scount = R8A66597_MAX_SAMPLING; | |
1463 | mod_timer(&r8a66597->rh_timer, jiffies + msecs_to_jiffies(50)); | |
1464 | } | |
1465 | ||
1466 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) | |
1467 | { | |
1468 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1469 | u16 intsts0, intsts1, intsts2; | |
1470 | u16 intenb0, intenb1, intenb2; | |
1471 | u16 mask0, mask1, mask2; | |
888fda47 | 1472 | int status; |
5d304358 YS |
1473 | |
1474 | spin_lock(&r8a66597->lock); | |
1475 | ||
1476 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1477 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1478 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1479 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1480 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1481 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1482 | ||
1483 | mask2 = intsts2 & intenb2; | |
1484 | mask1 = intsts1 & intenb1; | |
1485 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1486 | if (mask2) { | |
1487 | if (mask2 & ATTCH) { | |
e294531d | 1488 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1489 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1490 | ||
1491 | /* start usb bus sampling */ | |
1492 | start_root_hub_sampling(r8a66597, 1); | |
1493 | } | |
1494 | if (mask2 & DTCH) { | |
e294531d | 1495 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1496 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1497 | r8a66597_usb_disconnect(r8a66597, 1); | |
1498 | } | |
1499 | } | |
1500 | ||
1501 | if (mask1) { | |
1502 | if (mask1 & ATTCH) { | |
e294531d | 1503 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1504 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1505 | ||
1506 | /* start usb bus sampling */ | |
1507 | start_root_hub_sampling(r8a66597, 0); | |
1508 | } | |
1509 | if (mask1 & DTCH) { | |
e294531d | 1510 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1511 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1512 | r8a66597_usb_disconnect(r8a66597, 0); | |
1513 | } | |
1514 | if (mask1 & SIGN) { | |
e294531d | 1515 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1516 | status = get_urb_error(r8a66597, 0); |
1517 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1518 | } |
1519 | if (mask1 & SACK) { | |
e294531d | 1520 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1521 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1522 | } |
1523 | } | |
1524 | if (mask0) { | |
1525 | if (mask0 & BRDY) | |
1526 | irq_pipe_ready(r8a66597); | |
1527 | if (mask0 & BEMP) | |
1528 | irq_pipe_empty(r8a66597); | |
1529 | if (mask0 & NRDY) | |
1530 | irq_pipe_nrdy(r8a66597); | |
1531 | } | |
1532 | ||
1533 | spin_unlock(&r8a66597->lock); | |
1534 | return IRQ_HANDLED; | |
1535 | } | |
1536 | ||
1537 | /* this function must be called with interrupt disabled */ | |
1538 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1539 | { | |
1540 | u16 tmp; | |
1541 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1542 | ||
1543 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1544 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1545 | ||
1546 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1547 | if ((tmp & USBRST) == USBRST) { | |
1548 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1549 | dvstctr_reg); | |
1550 | mod_timer(&r8a66597->rh_timer, | |
1551 | jiffies + msecs_to_jiffies(50)); | |
1552 | } else | |
1553 | r8a66597_usb_connect(r8a66597, port); | |
1554 | } | |
1555 | ||
1556 | if (rh->scount > 0) { | |
1557 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1558 | if (tmp == rh->old_syssts) { | |
1559 | rh->scount--; | |
1560 | if (rh->scount == 0) { | |
1561 | if (tmp == FS_JSTS) { | |
1562 | r8a66597_bset(r8a66597, HSE, | |
1563 | get_syscfg_reg(port)); | |
1564 | r8a66597_usb_preconnect(r8a66597, port); | |
1565 | } else if (tmp == LS_JSTS) { | |
1566 | r8a66597_bclr(r8a66597, HSE, | |
1567 | get_syscfg_reg(port)); | |
1568 | r8a66597_usb_preconnect(r8a66597, port); | |
1569 | } else if (tmp == SE0) | |
1570 | r8a66597_bset(r8a66597, ATTCHE, | |
1571 | get_intenb_reg(port)); | |
1572 | } else { | |
1573 | mod_timer(&r8a66597->rh_timer, | |
1574 | jiffies + msecs_to_jiffies(50)); | |
1575 | } | |
1576 | } else { | |
1577 | rh->scount = R8A66597_MAX_SAMPLING; | |
1578 | rh->old_syssts = tmp; | |
1579 | mod_timer(&r8a66597->rh_timer, | |
1580 | jiffies + msecs_to_jiffies(50)); | |
1581 | } | |
1582 | } | |
1583 | } | |
1584 | ||
1585 | static void r8a66597_td_timer(unsigned long _r8a66597) | |
1586 | { | |
1587 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1588 | unsigned long flags; | |
1589 | u16 pipenum; | |
1590 | struct r8a66597_td *td, *new_td = NULL; | |
1591 | struct r8a66597_pipe *pipe; | |
1592 | ||
1593 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1594 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1595 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1596 | continue; | |
1597 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1598 | continue; | |
1599 | ||
1600 | td = r8a66597_get_td(r8a66597, pipenum); | |
1601 | if (!td) { | |
1602 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1603 | continue; | |
1604 | } | |
1605 | ||
1606 | if (td->urb->actual_length) { | |
1607 | set_td_timer(r8a66597, td); | |
1608 | break; | |
1609 | } | |
1610 | ||
1611 | pipe = td->pipe; | |
1612 | pipe_stop(r8a66597, pipe); | |
1613 | ||
1614 | new_td = td; | |
1615 | do { | |
1616 | list_move_tail(&new_td->queue, | |
1617 | &r8a66597->pipe_queue[pipenum]); | |
1618 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1619 | if (!new_td) { | |
1620 | new_td = td; | |
1621 | break; | |
1622 | } | |
1623 | } while (td != new_td && td->address == new_td->address); | |
1624 | ||
1625 | start_transfer(r8a66597, new_td); | |
1626 | ||
1627 | if (td == new_td) | |
1628 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1629 | else | |
1630 | set_td_timer(r8a66597, new_td); | |
1631 | break; | |
1632 | } | |
1633 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1634 | } | |
1635 | ||
1636 | static void r8a66597_timer(unsigned long _r8a66597) | |
1637 | { | |
1638 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1639 | unsigned long flags; | |
1640 | ||
1641 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1642 | ||
1643 | r8a66597_root_hub_control(r8a66597, 0); | |
1644 | r8a66597_root_hub_control(r8a66597, 1); | |
1645 | ||
1646 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1647 | } | |
1648 | ||
1649 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1650 | { | |
1651 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1652 | ||
1653 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1654 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1655 | return 1; | |
1656 | else | |
1657 | return 0; | |
1658 | } | |
1659 | ||
1660 | static int r8a66597_start(struct usb_hcd *hcd) | |
1661 | { | |
1662 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1663 | |
1664 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1665 | return enable_controller(r8a66597); |
5d304358 YS |
1666 | } |
1667 | ||
1668 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1669 | { | |
1670 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1671 | ||
1672 | disable_controller(r8a66597); | |
1673 | } | |
1674 | ||
1675 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1676 | { | |
1677 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1678 | u16 root_port, hub_port; | |
1679 | ||
1680 | if (usb_address == 0) { | |
1681 | get_port_number(urb->dev->devpath, | |
1682 | &root_port, &hub_port); | |
1683 | set_devadd_reg(r8a66597, 0, | |
1684 | get_r8a66597_usb_speed(urb->dev->speed), | |
1685 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1686 | hub_port, root_port); | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1691 | struct urb *urb, | |
e294531d | 1692 | struct usb_host_endpoint *hep) |
5d304358 YS |
1693 | { |
1694 | struct r8a66597_td *td; | |
1695 | u16 pipenum; | |
1696 | ||
e294531d | 1697 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1698 | if (td == NULL) |
1699 | return NULL; | |
1700 | ||
1701 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1702 | td->pipenum = pipenum; | |
1703 | td->pipe = hep->hcpriv; | |
1704 | td->urb = urb; | |
1705 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1706 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1707 | !usb_pipein(urb->pipe)); | |
1708 | if (usb_pipecontrol(urb->pipe)) | |
1709 | td->type = USB_PID_SETUP; | |
1710 | else if (usb_pipein(urb->pipe)) | |
1711 | td->type = USB_PID_IN; | |
1712 | else | |
1713 | td->type = USB_PID_OUT; | |
1714 | INIT_LIST_HEAD(&td->queue); | |
1715 | ||
1716 | return td; | |
1717 | } | |
1718 | ||
1719 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1720 | struct urb *urb, |
1721 | gfp_t mem_flags) | |
1722 | { | |
e9df41c5 | 1723 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1724 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1725 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1726 | int ret, request = 0; |
5d304358 YS |
1727 | unsigned long flags; |
1728 | ||
1729 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1730 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1731 | ret = -ENODEV; | |
e9df41c5 | 1732 | goto error_not_linked; |
5d304358 YS |
1733 | } |
1734 | ||
e9df41c5 AS |
1735 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1736 | if (ret) | |
1737 | goto error_not_linked; | |
1738 | ||
5d304358 | 1739 | if (!hep->hcpriv) { |
e294531d YS |
1740 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1741 | GFP_ATOMIC); | |
5d304358 YS |
1742 | if (!hep->hcpriv) { |
1743 | ret = -ENOMEM; | |
1744 | goto error; | |
1745 | } | |
1746 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1747 | if (usb_pipeendpoint(urb->pipe)) | |
1748 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1749 | } | |
1750 | ||
1751 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1752 | init_pipe_config(r8a66597, urb); | |
1753 | ||
1754 | set_address_zero(r8a66597, urb); | |
e294531d | 1755 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1756 | if (td == NULL) { |
1757 | ret = -ENOMEM; | |
1758 | goto error; | |
1759 | } | |
1760 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1761 | request = 1; | |
1762 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1763 | urb->hcpriv = td; |
5d304358 YS |
1764 | |
1765 | if (request) { | |
1766 | ret = start_transfer(r8a66597, td); | |
1767 | if (ret < 0) { | |
1768 | list_del(&td->queue); | |
1769 | kfree(td); | |
1770 | } | |
1771 | } else | |
1772 | set_td_timer(r8a66597, td); | |
1773 | ||
1774 | error: | |
e9df41c5 AS |
1775 | if (ret) |
1776 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1777 | error_not_linked: | |
5d304358 YS |
1778 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1779 | return ret; | |
1780 | } | |
1781 | ||
e9df41c5 AS |
1782 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1783 | int status) | |
5d304358 YS |
1784 | { |
1785 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1786 | struct r8a66597_td *td; | |
1787 | unsigned long flags; | |
e9df41c5 | 1788 | int rc; |
5d304358 YS |
1789 | |
1790 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1791 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1792 | if (rc) | |
1793 | goto done; | |
1794 | ||
5d304358 YS |
1795 | if (urb->hcpriv) { |
1796 | td = urb->hcpriv; | |
1797 | pipe_stop(r8a66597, td->pipe); | |
1798 | pipe_irq_disable(r8a66597, td->pipenum); | |
1799 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1800 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1801 | } |
e9df41c5 | 1802 | done: |
5d304358 | 1803 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1804 | return rc; |
5d304358 YS |
1805 | } |
1806 | ||
1807 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1808 | struct usb_host_endpoint *hep) | |
1809 | { | |
1810 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1811 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1812 | struct r8a66597_td *td; | |
1813 | struct urb *urb = NULL; | |
1814 | u16 pipenum; | |
1815 | unsigned long flags; | |
1816 | ||
1817 | if (pipe == NULL) | |
1818 | return; | |
1819 | pipenum = pipe->info.pipenum; | |
1820 | ||
1821 | if (pipenum == 0) { | |
1822 | kfree(hep->hcpriv); | |
1823 | hep->hcpriv = NULL; | |
1824 | return; | |
1825 | } | |
1826 | ||
1827 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1828 | pipe_stop(r8a66597, pipe); | |
1829 | pipe_irq_disable(r8a66597, pipenum); | |
1830 | disable_irq_empty(r8a66597, pipenum); | |
1831 | td = r8a66597_get_td(r8a66597, pipenum); | |
1832 | if (td) | |
1833 | urb = td->urb; | |
888fda47 | 1834 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
1835 | kfree(hep->hcpriv); |
1836 | hep->hcpriv = NULL; | |
1837 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1838 | } | |
1839 | ||
1840 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
1841 | { | |
1842 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1843 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
1844 | } | |
1845 | ||
1846 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
1847 | { | |
1848 | int chix; | |
1849 | ||
1850 | if (udev->state == USB_STATE_CONFIGURED && | |
1851 | udev->parent && udev->parent->devnum > 1 && | |
1852 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
1853 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
1854 | ||
1855 | for (chix = 0; chix < udev->maxchild; chix++) { | |
1856 | struct usb_device *childdev = udev->children[chix]; | |
1857 | ||
1858 | if (childdev) | |
1859 | collect_usb_address_map(childdev, map); | |
1860 | } | |
1861 | } | |
1862 | ||
1863 | /* this function must be called with interrupt disabled */ | |
1864 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
1865 | int addr) | |
1866 | { | |
1867 | struct r8a66597_device *dev; | |
1868 | struct list_head *list = &r8a66597->child_device; | |
1869 | ||
1870 | list_for_each_entry(dev, list, device_list) { | |
1871 | if (!dev) | |
1872 | continue; | |
1873 | if (dev->usb_address != addr) | |
1874 | continue; | |
1875 | ||
1876 | return dev; | |
1877 | } | |
1878 | ||
1879 | err("get_r8a66597_device fail.(%d)\n", addr); | |
1880 | return NULL; | |
1881 | } | |
1882 | ||
1883 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
1884 | struct usb_device *root_hub, | |
1885 | unsigned long *map) | |
1886 | { | |
1887 | int i, j, addr; | |
1888 | unsigned long diff; | |
1889 | unsigned long flags; | |
1890 | ||
1891 | for (i = 0; i < 4; i++) { | |
1892 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
1893 | if (!diff) | |
1894 | continue; | |
1895 | ||
1896 | for (j = 0; j < 32; j++) { | |
1897 | if (!(diff & (1 << j))) | |
1898 | continue; | |
1899 | ||
1900 | addr = i * 32 + j; | |
1901 | if (map[i] & (1 << j)) | |
1902 | set_child_connect_map(r8a66597, addr); | |
1903 | else { | |
1904 | struct r8a66597_device *dev; | |
1905 | ||
1906 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1907 | dev = get_r8a66597_device(r8a66597, addr); | |
1908 | disable_r8a66597_pipe_all(r8a66597, dev); | |
1909 | free_usb_address(r8a66597, dev); | |
1910 | put_child_connect_map(r8a66597, addr); | |
1911 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1912 | } | |
1913 | } | |
1914 | } | |
1915 | } | |
1916 | ||
1917 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
1918 | struct usb_hcd *hcd) | |
1919 | { | |
1920 | struct usb_bus *bus; | |
1921 | unsigned long now_map[4]; | |
1922 | ||
1923 | memset(now_map, 0, sizeof(now_map)); | |
1924 | ||
1925 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
1926 | if (!bus->root_hub) | |
1927 | continue; | |
1928 | ||
1929 | if (bus->busnum != hcd->self.busnum) | |
1930 | continue; | |
1931 | ||
1932 | collect_usb_address_map(bus->root_hub, now_map); | |
1933 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
1934 | } | |
1935 | } | |
1936 | ||
1937 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
1938 | { | |
1939 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1940 | unsigned long flags; | |
1941 | int i; | |
1942 | ||
1943 | r8a66597_check_detect_child(r8a66597, hcd); | |
1944 | ||
1945 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1946 | ||
1947 | *buf = 0; /* initialize (no change) */ | |
1948 | ||
1949 | for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) { | |
1950 | if (r8a66597->root_hub[i].port & 0xffff0000) | |
1951 | *buf |= 1 << (i + 1); | |
1952 | } | |
1953 | ||
1954 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1955 | ||
1956 | return (*buf != 0); | |
1957 | } | |
1958 | ||
1959 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
1960 | struct usb_hub_descriptor *desc) | |
1961 | { | |
1962 | desc->bDescriptorType = 0x29; | |
1963 | desc->bHubContrCurrent = 0; | |
1964 | desc->bNbrPorts = R8A66597_MAX_ROOT_HUB; | |
1965 | desc->bDescLength = 9; | |
1966 | desc->bPwrOn2PwrGood = 0; | |
1967 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
1968 | desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1; | |
1969 | desc->bitmap[1] = ~0; | |
1970 | } | |
1971 | ||
1972 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
1973 | u16 wIndex, char *buf, u16 wLength) | |
1974 | { | |
1975 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1976 | int ret; | |
1977 | int port = (wIndex & 0x00FF) - 1; | |
1978 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1979 | unsigned long flags; | |
1980 | ||
1981 | ret = 0; | |
1982 | ||
1983 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1984 | switch (typeReq) { | |
1985 | case ClearHubFeature: | |
1986 | case SetHubFeature: | |
1987 | switch (wValue) { | |
1988 | case C_HUB_OVER_CURRENT: | |
1989 | case C_HUB_LOCAL_POWER: | |
1990 | break; | |
1991 | default: | |
1992 | goto error; | |
1993 | } | |
1994 | break; | |
1995 | case ClearPortFeature: | |
1996 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
1997 | goto error; | |
1998 | if (wLength != 0) | |
1999 | goto error; | |
2000 | ||
2001 | switch (wValue) { | |
2002 | case USB_PORT_FEAT_ENABLE: | |
2003 | rh->port &= (1 << USB_PORT_FEAT_POWER); | |
2004 | break; | |
2005 | case USB_PORT_FEAT_SUSPEND: | |
2006 | break; | |
2007 | case USB_PORT_FEAT_POWER: | |
2008 | r8a66597_port_power(r8a66597, port, 0); | |
2009 | break; | |
2010 | case USB_PORT_FEAT_C_ENABLE: | |
2011 | case USB_PORT_FEAT_C_SUSPEND: | |
2012 | case USB_PORT_FEAT_C_CONNECTION: | |
2013 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2014 | case USB_PORT_FEAT_C_RESET: | |
2015 | break; | |
2016 | default: | |
2017 | goto error; | |
2018 | } | |
2019 | rh->port &= ~(1 << wValue); | |
2020 | break; | |
2021 | case GetHubDescriptor: | |
2022 | r8a66597_hub_descriptor(r8a66597, | |
2023 | (struct usb_hub_descriptor *)buf); | |
2024 | break; | |
2025 | case GetHubStatus: | |
2026 | *buf = 0x00; | |
2027 | break; | |
2028 | case GetPortStatus: | |
2029 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2030 | goto error; | |
05eac910 | 2031 | *(u32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2032 | break; |
2033 | case SetPortFeature: | |
2034 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2035 | goto error; | |
2036 | if (wLength != 0) | |
2037 | goto error; | |
2038 | ||
2039 | switch (wValue) { | |
2040 | case USB_PORT_FEAT_SUSPEND: | |
2041 | break; | |
2042 | case USB_PORT_FEAT_POWER: | |
2043 | r8a66597_port_power(r8a66597, port, 1); | |
2044 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2045 | break; | |
2046 | case USB_PORT_FEAT_RESET: { | |
2047 | struct r8a66597_device *dev = rh->dev; | |
2048 | ||
2049 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2050 | ||
2051 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2052 | free_usb_address(r8a66597, dev); | |
2053 | ||
2054 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2055 | get_dvstctr_reg(port)); | |
2056 | mod_timer(&r8a66597->rh_timer, | |
2057 | jiffies + msecs_to_jiffies(50)); | |
2058 | } | |
2059 | break; | |
2060 | default: | |
2061 | goto error; | |
2062 | } | |
2063 | rh->port |= 1 << wValue; | |
2064 | break; | |
2065 | default: | |
2066 | error: | |
2067 | ret = -EPIPE; | |
2068 | break; | |
2069 | } | |
2070 | ||
2071 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2072 | return ret; | |
2073 | } | |
2074 | ||
2075 | static struct hc_driver r8a66597_hc_driver = { | |
2076 | .description = hcd_name, | |
2077 | .hcd_priv_size = sizeof(struct r8a66597), | |
2078 | .irq = r8a66597_irq, | |
2079 | ||
2080 | /* | |
2081 | * generic hardware linkage | |
2082 | */ | |
2083 | .flags = HCD_USB2, | |
2084 | ||
2085 | .start = r8a66597_start, | |
2086 | .stop = r8a66597_stop, | |
2087 | ||
2088 | /* | |
2089 | * managing i/o requests and associated device resources | |
2090 | */ | |
2091 | .urb_enqueue = r8a66597_urb_enqueue, | |
2092 | .urb_dequeue = r8a66597_urb_dequeue, | |
2093 | .endpoint_disable = r8a66597_endpoint_disable, | |
2094 | ||
2095 | /* | |
2096 | * periodic schedule support | |
2097 | */ | |
2098 | .get_frame_number = r8a66597_get_frame, | |
2099 | ||
2100 | /* | |
2101 | * root hub support | |
2102 | */ | |
2103 | .hub_status_data = r8a66597_hub_status_data, | |
2104 | .hub_control = r8a66597_hub_control, | |
2105 | }; | |
2106 | ||
2107 | #if defined(CONFIG_PM) | |
2108 | static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) | |
2109 | { | |
2110 | pdev->dev.power.power_state = state; | |
2111 | return 0; | |
2112 | } | |
2113 | ||
2114 | static int r8a66597_resume(struct platform_device *pdev) | |
2115 | { | |
2116 | pdev->dev.power.power_state = PMSG_ON; | |
2117 | return 0; | |
2118 | } | |
2119 | #else /* if defined(CONFIG_PM) */ | |
2120 | #define r8a66597_suspend NULL | |
2121 | #define r8a66597_resume NULL | |
2122 | #endif | |
2123 | ||
2124 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2125 | { | |
2126 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2127 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2128 | ||
2129 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2130 | usb_remove_hcd(hcd); |
ca0677a2 | 2131 | iounmap((void *)r8a66597->reg); |
5d304358 YS |
2132 | usb_put_hcd(hcd); |
2133 | return 0; | |
2134 | } | |
2135 | ||
2136 | #define resource_len(r) (((r)->end - (r)->start) + 1) | |
2137 | static int __init r8a66597_probe(struct platform_device *pdev) | |
2138 | { | |
2139 | struct resource *res = NULL; | |
2140 | int irq = -1; | |
2141 | void __iomem *reg = NULL; | |
2142 | struct usb_hcd *hcd = NULL; | |
2143 | struct r8a66597 *r8a66597; | |
2144 | int ret = 0; | |
2145 | int i; | |
2146 | ||
2147 | if (pdev->dev.dma_mask) { | |
2148 | ret = -EINVAL; | |
2149 | err("dma not support"); | |
2150 | goto clean_up; | |
2151 | } | |
2152 | ||
2153 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, | |
2154 | (char *)hcd_name); | |
2155 | if (!res) { | |
2156 | ret = -ENODEV; | |
2157 | err("platform_get_resource_byname error."); | |
2158 | goto clean_up; | |
2159 | } | |
2160 | ||
2161 | irq = platform_get_irq(pdev, 0); | |
2162 | if (irq < 0) { | |
2163 | ret = -ENODEV; | |
2164 | err("platform_get_irq error."); | |
2165 | goto clean_up; | |
2166 | } | |
2167 | ||
2168 | reg = ioremap(res->start, resource_len(res)); | |
2169 | if (reg == NULL) { | |
2170 | ret = -ENOMEM; | |
2171 | err("ioremap error."); | |
2172 | goto clean_up; | |
2173 | } | |
2174 | ||
2175 | /* initialize hcd */ | |
2176 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2177 | if (!hcd) { | |
2178 | ret = -ENOMEM; | |
2179 | err("Failed to create hcd"); | |
2180 | goto clean_up; | |
2181 | } | |
2182 | r8a66597 = hcd_to_r8a66597(hcd); | |
2183 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2184 | dev_set_drvdata(&pdev->dev, r8a66597); | |
2185 | ||
2186 | spin_lock_init(&r8a66597->lock); | |
2187 | init_timer(&r8a66597->rh_timer); | |
2188 | r8a66597->rh_timer.function = r8a66597_timer; | |
2189 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2190 | r8a66597->reg = (unsigned long)reg; | |
2191 | ||
2192 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { | |
2193 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2194 | init_timer(&r8a66597->td_timer[i]); | |
2195 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2196 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
2197 | } | |
2198 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2199 | ||
2200 | hcd->rsrc_start = res->start; | |
442258e2 | 2201 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); |
5d304358 YS |
2202 | if (ret != 0) { |
2203 | err("Failed to add hcd"); | |
2204 | goto clean_up; | |
2205 | } | |
2206 | ||
2207 | return 0; | |
2208 | ||
2209 | clean_up: | |
2210 | if (reg) | |
2211 | iounmap(reg); | |
5d304358 YS |
2212 | |
2213 | return ret; | |
2214 | } | |
2215 | ||
2216 | static struct platform_driver r8a66597_driver = { | |
2217 | .probe = r8a66597_probe, | |
2218 | .remove = r8a66597_remove, | |
2219 | .suspend = r8a66597_suspend, | |
2220 | .resume = r8a66597_resume, | |
2221 | .driver = { | |
2222 | .name = (char *) hcd_name, | |
f4fce61d | 2223 | .owner = THIS_MODULE, |
5d304358 YS |
2224 | }, |
2225 | }; | |
2226 | ||
2227 | static int __init r8a66597_init(void) | |
2228 | { | |
2229 | if (usb_disabled()) | |
2230 | return -ENODEV; | |
2231 | ||
2232 | info("driver %s, %s", hcd_name, DRIVER_VERSION); | |
2233 | return platform_driver_register(&r8a66597_driver); | |
2234 | } | |
2235 | module_init(r8a66597_init); | |
2236 | ||
2237 | static void __exit r8a66597_cleanup(void) | |
2238 | { | |
2239 | platform_driver_unregister(&r8a66597_driver); | |
2240 | } | |
2241 | module_exit(r8a66597_cleanup); | |
2242 |