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