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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> | |
38 | ||
39 | #include <asm/io.h> | |
40 | #include <asm/irq.h> | |
41 | #include <asm/system.h> | |
42 | ||
43 | #include "../core/hcd.h" | |
44 | #include "r8a66597.h" | |
45 | ||
46 | MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); | |
47 | MODULE_LICENSE("GPL"); | |
48 | MODULE_AUTHOR("Yoshihiro Shimoda"); | |
49 | ||
f6ace2c9 | 50 | #define DRIVER_VERSION "29 May 2007" |
5d304358 YS |
51 | |
52 | static const char hcd_name[] = "r8a66597_hcd"; | |
53 | ||
54 | /* module parameters */ | |
55 | static unsigned short clock = XTAL12; | |
56 | module_param(clock, ushort, 0644); | |
57 | MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0(default=0)"); | |
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)"); | |
61 | static unsigned short endian = 0; | |
62 | module_param(endian, ushort, 0644); | |
63 | MODULE_PARM_DESC(endian, "data endian: big=256, little=0(default=0)"); | |
64 | static unsigned short irq_sense = INTL; | |
65 | module_param(irq_sense, ushort, 0644); | |
66 | MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0(default=32)"); | |
67 | ||
68 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); | |
69 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
70 | ||
71 | /* this function must be called with interrupt disabled */ | |
72 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
73 | unsigned long reg) | |
74 | { | |
75 | u16 tmp; | |
76 | ||
77 | tmp = r8a66597_read(r8a66597, INTENB0); | |
78 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
79 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
80 | r8a66597_write(r8a66597, tmp, INTENB0); | |
81 | } | |
82 | ||
83 | /* this function must be called with interrupt disabled */ | |
84 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
85 | unsigned long reg) | |
86 | { | |
87 | u16 tmp; | |
88 | ||
89 | tmp = r8a66597_read(r8a66597, INTENB0); | |
90 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
91 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
92 | r8a66597_write(r8a66597, tmp, INTENB0); | |
93 | } | |
94 | ||
95 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
96 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
97 | { | |
98 | u16 val; | |
99 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
100 | ||
101 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
102 | r8a66597_write(r8a66597, val, devadd_reg); | |
103 | } | |
104 | ||
105 | static int enable_controller(struct r8a66597 *r8a66597) | |
106 | { | |
107 | u16 tmp; | |
108 | int i = 0; | |
109 | ||
110 | do { | |
111 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
112 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
113 | if (i++ > 1000) { | |
114 | err("register access fail."); | |
115 | return -ENXIO; | |
116 | } | |
117 | } while ((tmp & USBE) != USBE); | |
118 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
119 | r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0); | |
120 | ||
121 | i = 0; | |
122 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
123 | do { | |
124 | msleep(1); | |
125 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
126 | if (i++ > 500) { | |
127 | err("register access fail."); | |
128 | return -ENXIO; | |
129 | } | |
130 | } while ((tmp & SCKE) != SCKE); | |
131 | ||
132 | r8a66597_bset(r8a66597, DCFM | DRPD, SYSCFG0); | |
133 | r8a66597_bset(r8a66597, DRPD, SYSCFG1); | |
134 | ||
135 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
136 | r8a66597_bset(r8a66597, HSE, SYSCFG0); | |
137 | r8a66597_bset(r8a66597, HSE, SYSCFG1); | |
138 | r8a66597_bset(r8a66597, USBE, SYSCFG0); | |
139 | ||
140 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
141 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
142 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
143 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
144 | ||
145 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, DMA0CFG); | |
146 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, DMA1CFG); | |
147 | ||
148 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); | |
149 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
150 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
151 | ||
152 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); | |
153 | ||
154 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
155 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); | |
156 | r8a66597_bset(r8a66597, ATTCHE, INTENB1); | |
157 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); | |
158 | r8a66597_bset(r8a66597, ATTCHE, INTENB2); | |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
163 | static void disable_controller(struct r8a66597 *r8a66597) | |
164 | { | |
165 | u16 tmp; | |
166 | ||
167 | r8a66597_write(r8a66597, 0, INTENB0); | |
168 | r8a66597_write(r8a66597, 0, INTENB1); | |
169 | r8a66597_write(r8a66597, 0, INTENB2); | |
170 | r8a66597_write(r8a66597, 0, INTSTS0); | |
171 | r8a66597_write(r8a66597, 0, INTSTS1); | |
172 | r8a66597_write(r8a66597, 0, INTSTS2); | |
173 | ||
174 | r8a66597_port_power(r8a66597, 0, 0); | |
175 | r8a66597_port_power(r8a66597, 1, 0); | |
176 | ||
177 | do { | |
178 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
179 | udelay(640); | |
180 | } while (tmp == EDGESTS); | |
181 | ||
182 | r8a66597_bclr(r8a66597, DCFM | DRPD, SYSCFG0); | |
183 | r8a66597_bclr(r8a66597, DRPD, SYSCFG1); | |
184 | r8a66597_bclr(r8a66597, HSE, SYSCFG0); | |
185 | r8a66597_bclr(r8a66597, HSE, SYSCFG1); | |
186 | ||
187 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
188 | udelay(1); | |
189 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); | |
190 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
191 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
192 | } | |
193 | ||
194 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
195 | struct usb_device *udev) | |
196 | { | |
197 | struct r8a66597_device *dev; | |
198 | ||
199 | if (udev->parent && udev->parent->devnum != 1) | |
200 | udev = udev->parent; | |
201 | ||
202 | dev = dev_get_drvdata(&udev->dev); | |
203 | if (dev) | |
204 | return dev->address; | |
205 | else | |
206 | return 0; | |
207 | } | |
208 | ||
209 | static int is_child_device(char *devpath) | |
210 | { | |
211 | return (devpath[2] ? 1 : 0); | |
212 | } | |
213 | ||
214 | static int is_hub_limit(char *devpath) | |
215 | { | |
216 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
217 | } | |
218 | ||
219 | static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) | |
220 | { | |
221 | if (root_port) { | |
222 | *root_port = (devpath[0] & 0x0F) - 1; | |
223 | if (*root_port >= R8A66597_MAX_ROOT_HUB) | |
224 | err("illegal root port number"); | |
225 | } | |
226 | if (hub_port) | |
227 | *hub_port = devpath[2] & 0x0F; | |
228 | } | |
229 | ||
230 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
231 | { | |
232 | u16 usbspd = 0; | |
233 | ||
234 | switch (speed) { | |
235 | case USB_SPEED_LOW: | |
236 | usbspd = LSMODE; | |
237 | break; | |
238 | case USB_SPEED_FULL: | |
239 | usbspd = FSMODE; | |
240 | break; | |
241 | case USB_SPEED_HIGH: | |
242 | usbspd = HSMODE; | |
243 | break; | |
244 | default: | |
245 | err("unknown speed"); | |
246 | break; | |
247 | } | |
248 | ||
249 | return usbspd; | |
250 | } | |
251 | ||
252 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
253 | { | |
254 | int idx; | |
255 | ||
256 | idx = address / 32; | |
257 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
258 | } | |
259 | ||
260 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
261 | { | |
262 | int idx; | |
263 | ||
264 | idx = address / 32; | |
265 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
266 | } | |
267 | ||
268 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
269 | { | |
270 | u16 pipenum = pipe->info.pipenum; | |
271 | unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; | |
272 | unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
273 | unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
274 | ||
275 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
276 | dma_ch = R8A66597_PIPE_NO_DMA; | |
277 | ||
278 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
279 | pipe->fifosel = fifosel[dma_ch]; | |
280 | pipe->fifoctr = fifoctr[dma_ch]; | |
281 | ||
282 | if (pipenum == 0) | |
283 | pipe->pipectr = DCPCTR; | |
284 | else | |
285 | pipe->pipectr = get_pipectr_addr(pipenum); | |
286 | ||
287 | if (check_bulk_or_isoc(pipenum)) { | |
288 | pipe->pipetre = get_pipetre_addr(pipenum); | |
289 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
290 | } else { | |
291 | pipe->pipetre = 0; | |
292 | pipe->pipetrn = 0; | |
293 | } | |
294 | } | |
295 | ||
296 | static struct r8a66597_device * | |
297 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
298 | { | |
299 | if (usb_pipedevice(urb->pipe) == 0) | |
300 | return &r8a66597->device0; | |
301 | ||
302 | return dev_get_drvdata(&urb->dev->dev); | |
303 | } | |
304 | ||
305 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
306 | struct urb *urb, u8 addr) | |
307 | { | |
308 | struct r8a66597_device *dev; | |
309 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
310 | ||
311 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_KERNEL); | |
312 | if (dev == NULL) | |
313 | return -ENOMEM; | |
314 | ||
315 | dev_set_drvdata(&urb->dev->dev, dev); | |
316 | dev->udev = urb->dev; | |
317 | dev->address = addr; | |
318 | dev->usb_address = usb_address; | |
319 | dev->state = USB_STATE_ADDRESS; | |
320 | dev->ep_in_toggle = 0; | |
321 | dev->ep_out_toggle = 0; | |
322 | INIT_LIST_HEAD(&dev->device_list); | |
323 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
324 | ||
325 | get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port); | |
326 | if (!is_child_device(urb->dev->devpath)) | |
327 | r8a66597->root_hub[dev->root_port].dev = dev; | |
328 | ||
329 | set_devadd_reg(r8a66597, dev->address, | |
330 | get_r8a66597_usb_speed(urb->dev->speed), | |
331 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
332 | dev->hub_port, dev->root_port); | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | /* this function must be called with interrupt disabled */ | |
338 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
339 | { | |
340 | u8 addr; /* R8A66597's address */ | |
341 | struct r8a66597_device *dev; | |
342 | ||
343 | if (is_hub_limit(urb->dev->devpath)) { | |
344 | err("Externel hub limit reached."); | |
345 | return 0; | |
346 | } | |
347 | ||
348 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
349 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
350 | return dev->address; | |
351 | ||
352 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
353 | if (r8a66597->address_map & (1 << addr)) | |
354 | continue; | |
355 | ||
356 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
357 | r8a66597->address_map |= 1 << addr; | |
358 | ||
359 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
360 | return 0; | |
361 | ||
362 | return addr; | |
363 | } | |
364 | ||
365 | err("cannot communicate with a USB device more than 10.(%x)", | |
366 | r8a66597->address_map); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | /* this function must be called with interrupt disabled */ | |
372 | static void free_usb_address(struct r8a66597 *r8a66597, | |
373 | struct r8a66597_device *dev) | |
374 | { | |
375 | int port; | |
376 | ||
377 | if (!dev) | |
378 | return; | |
379 | ||
380 | dbg("free_addr: addr=%d", dev->address); | |
381 | ||
382 | dev->state = USB_STATE_DEFAULT; | |
383 | r8a66597->address_map &= ~(1 << dev->address); | |
384 | dev->address = 0; | |
385 | dev_set_drvdata(&dev->udev->dev, NULL); | |
386 | list_del(&dev->device_list); | |
387 | kfree(dev); | |
388 | ||
389 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
390 | if (r8a66597->root_hub[port].dev == dev) { | |
391 | r8a66597->root_hub[port].dev = NULL; | |
392 | break; | |
393 | } | |
394 | } | |
395 | } | |
396 | ||
397 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
398 | u16 mask, u16 loop) | |
399 | { | |
400 | u16 tmp; | |
401 | int i = 0; | |
402 | ||
403 | do { | |
404 | tmp = r8a66597_read(r8a66597, reg); | |
405 | if (i++ > 1000000) { | |
406 | err("register%lx, loop %x is timeout", reg, loop); | |
407 | break; | |
408 | } | |
409 | ndelay(1); | |
410 | } while ((tmp & mask) != loop); | |
411 | } | |
412 | ||
413 | /* this function must be called with interrupt disabled */ | |
414 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
415 | { | |
416 | u16 tmp; | |
417 | ||
418 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
419 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
420 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
421 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
422 | } | |
423 | ||
424 | /* this function must be called with interrupt disabled */ | |
425 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
426 | { | |
427 | u16 tmp; | |
428 | ||
429 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
430 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
431 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
432 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
433 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
434 | } | |
435 | ||
436 | /* this function must be called with interrupt disabled */ | |
437 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
438 | struct r8a66597_pipe *pipe) | |
439 | { | |
440 | u16 tmp; | |
441 | ||
442 | if (!pipe || pipe->info.pipenum == 0) | |
443 | return; | |
444 | ||
445 | pipe_stop(r8a66597, pipe); | |
446 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
447 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
448 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
449 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
450 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
451 | } | |
452 | ||
453 | /* this function must be called with interrupt disabled */ | |
454 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
455 | struct r8a66597_pipe *pipe, int toggle) | |
456 | { | |
457 | if (toggle) | |
458 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
459 | else | |
460 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
461 | } | |
462 | ||
463 | /* this function must be called with interrupt disabled */ | |
464 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
465 | { | |
466 | r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); | |
467 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); | |
468 | } | |
469 | ||
470 | /* this function must be called with interrupt disabled */ | |
471 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
472 | struct r8a66597_pipe *pipe) | |
473 | { | |
474 | cfifo_change(r8a66597, 0); | |
475 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL); | |
476 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL); | |
477 | ||
478 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE, | |
479 | pipe->fifosel); | |
480 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
481 | } | |
482 | ||
483 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
484 | { | |
485 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
486 | ||
487 | if (usb_pipeendpoint(urb->pipe) == 0) | |
488 | return 0; | |
489 | else | |
490 | return pipe->info.pipenum; | |
491 | } | |
492 | ||
493 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
494 | { | |
495 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
496 | ||
497 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
498 | } | |
499 | ||
500 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
501 | int urb_pipe) | |
502 | { | |
503 | if (!dev) | |
504 | return NULL; | |
505 | ||
506 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
507 | } | |
508 | ||
509 | /* this function must be called with interrupt disabled */ | |
510 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
511 | struct r8a66597_pipe *pipe, | |
512 | struct urb *urb, int set) | |
513 | { | |
514 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
515 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
516 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
517 | ||
518 | if (!toggle) | |
519 | return; | |
520 | ||
521 | if (set) | |
522 | *toggle |= 1 << endpoint; | |
523 | else | |
524 | *toggle &= ~(1 << endpoint); | |
525 | } | |
526 | ||
527 | /* this function must be called with interrupt disabled */ | |
528 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
529 | struct r8a66597_pipe *pipe, | |
530 | struct urb *urb) | |
531 | { | |
532 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
533 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
534 | else | |
535 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
536 | } | |
537 | ||
538 | /* this function must be called with interrupt disabled */ | |
539 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
540 | struct r8a66597_pipe *pipe, | |
541 | struct urb *urb) | |
542 | { | |
543 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
544 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
545 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
546 | ||
f6ace2c9 YS |
547 | if (!toggle) |
548 | return; | |
549 | ||
5d304358 YS |
550 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
551 | } | |
552 | ||
553 | /* this function must be called with interrupt disabled */ | |
554 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
555 | struct r8a66597_pipe_info *info) | |
556 | { | |
557 | u16 val = 0; | |
558 | ||
559 | if (info->pipenum == 0) | |
560 | return; | |
561 | ||
562 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
563 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
564 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
565 | if (!info->dir_in) | |
566 | val |= R8A66597_DIR; | |
567 | if (info->type == R8A66597_BULK && info->dir_in) | |
568 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
569 | val |= info->type | info->epnum; | |
570 | r8a66597_write(r8a66597, val, PIPECFG); | |
571 | ||
572 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
573 | PIPEBUF); | |
574 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
575 | PIPEMAXP); | |
576 | if (info->interval) | |
577 | info->interval--; | |
578 | r8a66597_write(r8a66597, info->interval, PIPEPERI); | |
579 | } | |
580 | ||
581 | ||
582 | ||
583 | /* this function must be called with interrupt disabled */ | |
584 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
585 | { | |
586 | struct r8a66597_pipe_info *info; | |
587 | struct urb *urb = td->urb; | |
588 | ||
589 | if (td->pipenum > 0) { | |
590 | info = &td->pipe->info; | |
591 | cfifo_change(r8a66597, 0); | |
592 | pipe_buffer_setting(r8a66597, info); | |
593 | ||
594 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
595 | usb_pipeout(urb->pipe)) && | |
596 | !usb_pipecontrol(urb->pipe)) { | |
597 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
598 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
599 | clear_all_buffer(r8a66597, td->pipe); | |
600 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
601 | usb_pipeout(urb->pipe), 1); | |
602 | } | |
603 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
604 | } | |
605 | } | |
606 | ||
607 | /* this function must be called with interrupt disabled */ | |
608 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
609 | struct usb_endpoint_descriptor *ep) | |
610 | { | |
611 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
612 | ||
613 | memset(array, 0, sizeof(array)); | |
614 | switch(ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
615 | case USB_ENDPOINT_XFER_BULK: | |
616 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
617 | array[i++] = 4; | |
618 | else { | |
619 | array[i++] = 3; | |
620 | array[i++] = 5; | |
621 | } | |
622 | break; | |
623 | case USB_ENDPOINT_XFER_INT: | |
624 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) { | |
625 | array[i++] = 6; | |
626 | array[i++] = 7; | |
627 | array[i++] = 8; | |
628 | } else | |
629 | array[i++] = 9; | |
630 | break; | |
631 | case USB_ENDPOINT_XFER_ISOC: | |
632 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
633 | array[i++] = 2; | |
634 | else | |
635 | array[i++] = 1; | |
636 | break; | |
637 | default: | |
638 | err("Illegal type"); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | i = 1; | |
643 | min = array[0]; | |
644 | while (array[i] != 0) { | |
645 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
646 | min = array[i]; | |
647 | i++; | |
648 | } | |
649 | ||
650 | return min; | |
651 | } | |
652 | ||
653 | static u16 get_r8a66597_type(__u8 type) | |
654 | { | |
655 | u16 r8a66597_type; | |
656 | ||
657 | switch(type) { | |
658 | case USB_ENDPOINT_XFER_BULK: | |
659 | r8a66597_type = R8A66597_BULK; | |
660 | break; | |
661 | case USB_ENDPOINT_XFER_INT: | |
662 | r8a66597_type = R8A66597_INT; | |
663 | break; | |
664 | case USB_ENDPOINT_XFER_ISOC: | |
665 | r8a66597_type = R8A66597_ISO; | |
666 | break; | |
667 | default: | |
668 | err("Illegal type"); | |
669 | r8a66597_type = 0x0000; | |
670 | break; | |
671 | } | |
672 | ||
673 | return r8a66597_type; | |
674 | } | |
675 | ||
676 | static u16 get_bufnum(u16 pipenum) | |
677 | { | |
678 | u16 bufnum = 0; | |
679 | ||
680 | if (pipenum == 0) | |
681 | bufnum = 0; | |
682 | else if (check_bulk_or_isoc(pipenum)) | |
683 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
684 | else if (check_interrupt(pipenum)) | |
685 | bufnum = 4 + (pipenum - 6); | |
686 | else | |
687 | err("Illegal pipenum (%d)", pipenum); | |
688 | ||
689 | return bufnum; | |
690 | } | |
691 | ||
692 | static u16 get_buf_bsize(u16 pipenum) | |
693 | { | |
694 | u16 buf_bsize = 0; | |
695 | ||
696 | if (pipenum == 0) | |
697 | buf_bsize = 3; | |
698 | else if (check_bulk_or_isoc(pipenum)) | |
699 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
700 | else if (check_interrupt(pipenum)) | |
701 | buf_bsize = 0; | |
702 | else | |
703 | err("Illegal pipenum (%d)", pipenum); | |
704 | ||
705 | return buf_bsize; | |
706 | } | |
707 | ||
708 | /* this function must be called with interrupt disabled */ | |
709 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
710 | struct r8a66597_device *dev, | |
711 | struct r8a66597_pipe *pipe, | |
712 | struct urb *urb) | |
713 | { | |
714 | int i; | |
715 | struct r8a66597_pipe_info *info = &pipe->info; | |
716 | ||
717 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
718 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
719 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
720 | continue; | |
721 | ||
722 | info("address %d, EndpointAddress 0x%02x use DMA FIFO", | |
723 | usb_pipedevice(urb->pipe), | |
724 | info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum | |
725 | : info->epnum); | |
726 | ||
727 | r8a66597->dma_map |= 1 << i; | |
728 | dev->dma_map |= 1 << i; | |
729 | set_pipe_reg_addr(pipe, i); | |
730 | ||
731 | cfifo_change(r8a66597, 0); | |
732 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, | |
733 | MBW | CURPIPE, pipe->fifosel); | |
734 | ||
735 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
736 | pipe->info.pipenum); | |
737 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
738 | break; | |
739 | } | |
740 | } | |
741 | } | |
742 | ||
743 | /* this function must be called with interrupt disabled */ | |
744 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
745 | struct usb_host_endpoint *hep, | |
746 | struct r8a66597_pipe_info *info) | |
747 | { | |
748 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
749 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
750 | ||
751 | dbg("enable_pipe:"); | |
752 | ||
753 | pipe->info = *info; | |
754 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
755 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
756 | dev->pipe_cnt[pipe->info.pipenum]++; | |
757 | ||
758 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
759 | } | |
760 | ||
761 | /* this function must be called with interrupt disabled */ | |
762 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
763 | { | |
764 | struct r8a66597_td *td, *next; | |
765 | struct urb *urb; | |
766 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
767 | ||
768 | if (list_empty(list)) | |
769 | return; | |
770 | ||
771 | list_for_each_entry_safe(td, next, list, queue) { | |
772 | if (!td) | |
773 | continue; | |
774 | if (td->address != address) | |
775 | continue; | |
776 | ||
777 | urb = td->urb; | |
778 | list_del(&td->queue); | |
779 | kfree(td); | |
780 | ||
781 | if (urb) { | |
782 | urb->status = -ENODEV; | |
783 | urb->hcpriv = NULL; | |
784 | spin_unlock(&r8a66597->lock); | |
785 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb); | |
786 | spin_lock(&r8a66597->lock); | |
787 | } | |
788 | break; | |
789 | } | |
790 | } | |
791 | ||
792 | /* this function must be called with interrupt disabled */ | |
793 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
794 | struct r8a66597_device *dev) | |
795 | { | |
796 | int check_ep0 = 0; | |
797 | u16 pipenum; | |
798 | ||
799 | if (!dev) | |
800 | return; | |
801 | ||
802 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
803 | if (!dev->pipe_cnt[pipenum]) | |
804 | continue; | |
805 | ||
806 | if (!check_ep0) { | |
807 | check_ep0 = 1; | |
808 | force_dequeue(r8a66597, 0, dev->address); | |
809 | } | |
810 | ||
811 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
812 | dev->pipe_cnt[pipenum] = 0; | |
813 | force_dequeue(r8a66597, pipenum, dev->address); | |
814 | } | |
815 | ||
816 | dbg("disable_pipe"); | |
817 | ||
818 | r8a66597->dma_map &= ~(dev->dma_map); | |
819 | dev->dma_map = 0; | |
820 | } | |
821 | ||
822 | /* this function must be called with interrupt disabled */ | |
823 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
824 | struct usb_host_endpoint *hep, | |
825 | struct usb_endpoint_descriptor *ep) | |
826 | { | |
827 | struct r8a66597_pipe_info info; | |
828 | ||
829 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
830 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
831 | info.epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
832 | info.maxpacket = ep->wMaxPacketSize; | |
833 | info.type = get_r8a66597_type(ep->bmAttributes | |
834 | & USB_ENDPOINT_XFERTYPE_MASK); | |
835 | info.bufnum = get_bufnum(info.pipenum); | |
836 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
837 | info.interval = ep->bInterval; | |
838 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
839 | info.dir_in = 1; | |
840 | else | |
841 | info.dir_in = 0; | |
842 | ||
843 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
844 | } | |
845 | ||
846 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
847 | { | |
848 | struct r8a66597_device *dev; | |
849 | ||
850 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
851 | dev->state = USB_STATE_CONFIGURED; | |
852 | } | |
853 | ||
854 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
855 | u16 pipenum) | |
856 | { | |
857 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
858 | enable_irq_empty(r8a66597, pipenum); | |
859 | else | |
860 | enable_irq_ready(r8a66597, pipenum); | |
861 | ||
862 | if (!usb_pipeisoc(urb->pipe)) | |
863 | enable_irq_nrdy(r8a66597, pipenum); | |
864 | } | |
865 | ||
866 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
867 | { | |
868 | disable_irq_ready(r8a66597, pipenum); | |
869 | disable_irq_nrdy(r8a66597, pipenum); | |
870 | } | |
871 | ||
872 | /* this function must be called with interrupt disabled */ | |
873 | static void r8a66597_usb_preconnect(struct r8a66597 *r8a66597, int port) | |
874 | { | |
875 | r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_CONNECTION) | |
876 | | (1 << USB_PORT_FEAT_C_CONNECTION); | |
877 | r8a66597_write(r8a66597, (u16)~DTCH, get_intsts_reg(port)); | |
878 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); | |
879 | } | |
880 | ||
881 | /* this function must be called with interrupt disabled */ | |
882 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
883 | { | |
884 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
885 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
886 | ||
887 | if (speed == HSMODE) | |
888 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
889 | else if (speed == LSMODE) | |
890 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
891 | ||
892 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
893 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
894 | } | |
895 | ||
896 | /* this function must be called with interrupt disabled */ | |
897 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
898 | { | |
899 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
900 | ||
901 | r8a66597->root_hub[port].port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
902 | r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_C_CONNECTION); | |
903 | ||
904 | disable_r8a66597_pipe_all(r8a66597, dev); | |
905 | free_usb_address(r8a66597, dev); | |
906 | ||
907 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
908 | } | |
909 | ||
910 | /* this function must be called with interrupt disabled */ | |
911 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
912 | struct r8a66597_td *td) | |
913 | { | |
914 | int i; | |
915 | u16 *p = (u16 *)td->urb->setup_packet; | |
916 | unsigned long setup_addr = USBREQ; | |
917 | ||
918 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
919 | DCPMAXP); | |
920 | r8a66597_write(r8a66597, (u16)~(SIGN | SACK), INTSTS1); | |
921 | ||
922 | for (i = 0; i < 4; i++) { | |
923 | r8a66597_write(r8a66597, p[i], setup_addr); | |
924 | setup_addr += 2; | |
925 | } | |
926 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
927 | } | |
928 | ||
929 | /* this function must be called with interrupt disabled */ | |
930 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
931 | struct r8a66597_td *td) | |
932 | { | |
933 | struct urb *urb = td->urb; | |
934 | ||
935 | if (usb_pipecontrol(urb->pipe)) { | |
936 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
937 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
938 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
939 | if (urb->actual_length == 0) { | |
940 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
941 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
942 | } | |
943 | pipe_irq_disable(r8a66597, td->pipenum); | |
944 | pipe_start(r8a66597, td->pipe); | |
945 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
946 | } else { | |
947 | if (urb->actual_length == 0) { | |
948 | pipe_irq_disable(r8a66597, td->pipenum); | |
949 | pipe_setting(r8a66597, td); | |
950 | pipe_stop(r8a66597, td->pipe); | |
951 | r8a66597_write(r8a66597, (u16)~(1 << td->pipenum), | |
952 | BRDYSTS); | |
953 | ||
954 | if (td->pipe->pipetre) { | |
955 | r8a66597_write(r8a66597, TRCLR, | |
956 | td->pipe->pipetre); | |
957 | r8a66597_write(r8a66597, | |
958 | (urb->transfer_buffer_length | |
959 | + td->maxpacket - 1) | |
960 | / td->maxpacket, | |
961 | td->pipe->pipetrn); | |
962 | r8a66597_bset(r8a66597, TRENB, | |
963 | td->pipe->pipetre); | |
964 | } | |
965 | ||
966 | pipe_start(r8a66597, td->pipe); | |
967 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
968 | } | |
969 | } | |
970 | } | |
971 | ||
972 | /* this function must be called with interrupt disabled */ | |
973 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
974 | struct r8a66597_td *td) | |
975 | { | |
976 | u16 tmp; | |
977 | struct urb *urb = td->urb; | |
978 | ||
979 | if (usb_pipecontrol(urb->pipe)) { | |
980 | pipe_stop(r8a66597, td->pipe); | |
981 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
982 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
983 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
984 | if (urb->actual_length == 0) { | |
985 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
986 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
987 | } | |
988 | } else { | |
989 | if (urb->actual_length == 0) | |
990 | pipe_setting(r8a66597, td); | |
991 | if (td->pipe->pipetre) | |
992 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
993 | } | |
994 | r8a66597_write(r8a66597, (u16)~(1 << td->pipenum), BRDYSTS); | |
995 | ||
996 | fifo_change_from_pipe(r8a66597, td->pipe); | |
997 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
998 | if (unlikely((tmp & FRDY) == 0)) | |
999 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1000 | else | |
1001 | packet_write(r8a66597, td->pipenum); | |
1002 | pipe_start(r8a66597, td->pipe); | |
1003 | } | |
1004 | ||
1005 | /* this function must be called with interrupt disabled */ | |
1006 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1007 | struct r8a66597_td *td) | |
1008 | { | |
1009 | struct urb *urb = td->urb; | |
1010 | ||
1011 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1012 | ||
1013 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1014 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1015 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1016 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1017 | r8a66597_write(r8a66597, BVAL | BCLR, CFIFOCTR); | |
1018 | r8a66597_write(r8a66597, (u16)~BEMP0, BEMPSTS); | |
1019 | enable_irq_empty(r8a66597, 0); | |
1020 | } else { | |
1021 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1022 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1023 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1024 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1025 | r8a66597_write(r8a66597, (u16)~BRDY0, BRDYSTS); | |
1026 | r8a66597_write(r8a66597, (u16)~BEMP0, BEMPSTS); | |
1027 | enable_irq_ready(r8a66597, 0); | |
1028 | } | |
1029 | enable_irq_nrdy(r8a66597, 0); | |
1030 | pipe_start(r8a66597, td->pipe); | |
1031 | } | |
1032 | ||
1033 | /* this function must be called with interrupt disabled */ | |
1034 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1035 | { | |
1036 | BUG_ON(!td); | |
1037 | ||
1038 | switch (td->type) { | |
1039 | case USB_PID_SETUP: | |
1040 | if (td->urb->setup_packet[1] == USB_REQ_SET_ADDRESS) { | |
1041 | td->set_address = 1; | |
1042 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1043 | td->urb); | |
1044 | if (td->urb->setup_packet[2] == 0) | |
1045 | return -EPIPE; | |
1046 | } | |
1047 | prepare_setup_packet(r8a66597, td); | |
1048 | break; | |
1049 | case USB_PID_IN: | |
1050 | prepare_packet_read(r8a66597, td); | |
1051 | break; | |
1052 | case USB_PID_OUT: | |
1053 | prepare_packet_write(r8a66597, td); | |
1054 | break; | |
1055 | case USB_PID_ACK: | |
1056 | prepare_status_packet(r8a66597, td); | |
1057 | break; | |
1058 | default: | |
1059 | err("invalid type."); | |
1060 | break; | |
1061 | } | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1067 | { | |
1068 | if (usb_pipeisoc(urb->pipe)) { | |
1069 | if (urb->number_of_packets == td->iso_cnt) | |
1070 | return 1; | |
1071 | } | |
1072 | ||
1073 | /* control or bulk or interrupt */ | |
1074 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1075 | (td->short_packet) || (td->zero_packet)) | |
1076 | return 1; | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | /* this function must be called with interrupt disabled */ | |
1082 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1083 | { | |
1084 | unsigned long time; | |
1085 | ||
1086 | BUG_ON(!td); | |
1087 | ||
1088 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1089 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1090 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1091 | switch (usb_pipetype(td->urb->pipe)) { | |
1092 | case PIPE_INTERRUPT: | |
1093 | case PIPE_ISOCHRONOUS: | |
1094 | time = 30; | |
1095 | break; | |
1096 | default: | |
1097 | time = 300; | |
1098 | break; | |
1099 | } | |
1100 | ||
1101 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1102 | jiffies + msecs_to_jiffies(time)); | |
1103 | } | |
1104 | } | |
1105 | ||
1106 | /* this function must be called with interrupt disabled */ | |
1107 | static void done(struct r8a66597 *r8a66597, struct r8a66597_td *td, | |
1108 | u16 pipenum, struct urb *urb) | |
1109 | { | |
1110 | int restart = 0; | |
1111 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1112 | ||
1113 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1114 | ||
1115 | if (likely(td)) { | |
1116 | if (td->set_address && urb->status != 0) | |
1117 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); | |
1118 | ||
1119 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1120 | list_del(&td->queue); | |
1121 | kfree(td); | |
1122 | } | |
1123 | ||
1124 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1125 | restart = 1; | |
1126 | ||
1127 | if (likely(urb)) { | |
1128 | if (usb_pipeisoc(urb->pipe)) | |
1129 | urb->start_frame = r8a66597_get_frame(hcd); | |
1130 | ||
1131 | urb->hcpriv = NULL; | |
1132 | spin_unlock(&r8a66597->lock); | |
1133 | usb_hcd_giveback_urb(hcd, urb); | |
1134 | spin_lock(&r8a66597->lock); | |
1135 | } | |
1136 | ||
1137 | if (restart) { | |
1138 | td = r8a66597_get_td(r8a66597, pipenum); | |
1139 | if (unlikely(!td)) | |
1140 | return; | |
1141 | ||
1142 | start_transfer(r8a66597, td); | |
1143 | set_td_timer(r8a66597, td); | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | /* this function must be called with interrupt disabled */ | |
1148 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, | |
1149 | u16 pipenum, struct urb *urb) | |
1150 | __releases(r8a66597->lock) __acquires(r8a66597->lock) | |
1151 | { | |
1152 | done(r8a66597, td, pipenum, urb); | |
1153 | } | |
1154 | ||
1155 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) | |
1156 | { | |
1157 | u16 tmp; | |
1158 | int rcv_len, bufsize, urb_len, size; | |
1159 | u16 *buf; | |
1160 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1161 | struct urb *urb; | |
1162 | int finish = 0; | |
1163 | ||
1164 | if (unlikely(!td)) | |
1165 | return; | |
1166 | urb = td->urb; | |
1167 | ||
1168 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1169 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1170 | if (unlikely((tmp & FRDY) == 0)) { | |
1171 | urb->status = -EPIPE; | |
1172 | pipe_stop(r8a66597, td->pipe); | |
1173 | pipe_irq_disable(r8a66597, pipenum); | |
1174 | err("in fifo not ready (%d)", pipenum); | |
1175 | finish_request(r8a66597, td, pipenum, td->urb); | |
1176 | return; | |
1177 | } | |
1178 | ||
1179 | /* prepare parameters */ | |
1180 | rcv_len = tmp & DTLN; | |
1181 | bufsize = td->maxpacket; | |
1182 | if (usb_pipeisoc(urb->pipe)) { | |
1183 | buf = (u16 *)(urb->transfer_buffer + | |
1184 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1185 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1186 | } else { | |
1187 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1188 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1189 | } | |
1190 | if (rcv_len < bufsize) | |
1191 | size = min(rcv_len, urb_len); | |
1192 | else | |
1193 | size = min(bufsize, urb_len); | |
1194 | ||
1195 | /* update parameters */ | |
1196 | urb->actual_length += size; | |
1197 | if (rcv_len == 0) | |
1198 | td->zero_packet = 1; | |
1199 | if ((size % td->maxpacket) > 0) { | |
1200 | td->short_packet = 1; | |
1201 | if (urb->transfer_buffer_length != urb->actual_length && | |
1202 | urb->transfer_flags & URB_SHORT_NOT_OK) | |
1203 | td->urb->status = -EREMOTEIO; | |
1204 | } | |
1205 | if (usb_pipeisoc(urb->pipe)) { | |
1206 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1207 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1208 | td->iso_cnt++; | |
1209 | } | |
1210 | ||
1211 | /* check transfer finish */ | |
1212 | if (check_transfer_finish(td, urb)) { | |
1213 | pipe_stop(r8a66597, td->pipe); | |
1214 | pipe_irq_disable(r8a66597, pipenum); | |
1215 | finish = 1; | |
1216 | } | |
1217 | ||
1218 | /* read fifo */ | |
1219 | if (urb->transfer_buffer) { | |
1220 | if (size == 0) | |
1221 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1222 | else | |
1223 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1224 | buf, size); | |
1225 | } | |
1226 | ||
1227 | if (finish && pipenum != 0) { | |
1228 | if (td->urb->status == -EINPROGRESS) | |
1229 | td->urb->status = 0; | |
1230 | finish_request(r8a66597, td, pipenum, urb); | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1235 | { | |
1236 | u16 tmp; | |
1237 | int bufsize, size; | |
1238 | u16 *buf; | |
1239 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1240 | struct urb *urb; | |
1241 | ||
1242 | if (unlikely(!td)) | |
1243 | return; | |
1244 | urb = td->urb; | |
1245 | ||
1246 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1247 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1248 | if (unlikely((tmp & FRDY) == 0)) { | |
1249 | urb->status = -EPIPE; | |
1250 | pipe_stop(r8a66597, td->pipe); | |
1251 | pipe_irq_disable(r8a66597, pipenum); | |
1252 | err("out write fifo not ready. (%d)", pipenum); | |
1253 | finish_request(r8a66597, td, pipenum, td->urb); | |
1254 | return; | |
1255 | } | |
1256 | ||
1257 | /* prepare parameters */ | |
1258 | bufsize = td->maxpacket; | |
1259 | if (usb_pipeisoc(urb->pipe)) { | |
1260 | buf = (u16 *)(urb->transfer_buffer + | |
1261 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1262 | size = min(bufsize, | |
1263 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1264 | } else { | |
1265 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
1266 | size = min((int)bufsize, | |
1267 | urb->transfer_buffer_length - urb->actual_length); | |
1268 | } | |
1269 | ||
1270 | /* write fifo */ | |
1271 | if (pipenum > 0) | |
1272 | r8a66597_write(r8a66597, (u16)~(1 << pipenum), BEMPSTS); | |
1273 | if (urb->transfer_buffer) { | |
1274 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1275 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1276 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1277 | } | |
1278 | ||
1279 | /* update parameters */ | |
1280 | urb->actual_length += size; | |
1281 | if (usb_pipeisoc(urb->pipe)) { | |
1282 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1283 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1284 | td->iso_cnt++; | |
1285 | } | |
1286 | ||
1287 | /* check transfer finish */ | |
1288 | if (check_transfer_finish(td, urb)) { | |
1289 | disable_irq_ready(r8a66597, pipenum); | |
1290 | enable_irq_empty(r8a66597, pipenum); | |
1291 | if (!usb_pipeisoc(urb->pipe)) | |
1292 | enable_irq_nrdy(r8a66597, pipenum); | |
1293 | } else | |
1294 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1295 | } | |
1296 | ||
1297 | ||
1298 | static void check_next_phase(struct r8a66597 *r8a66597) | |
1299 | { | |
1300 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1301 | struct urb *urb; | |
1302 | u8 finish = 0; | |
1303 | ||
1304 | if (unlikely(!td)) | |
1305 | return; | |
1306 | urb = td->urb; | |
1307 | ||
1308 | switch (td->type) { | |
1309 | case USB_PID_IN: | |
1310 | case USB_PID_OUT: | |
1311 | if (urb->status != -EINPROGRESS) { | |
1312 | finish = 1; | |
1313 | break; | |
1314 | } | |
1315 | if (check_transfer_finish(td, urb)) | |
1316 | td->type = USB_PID_ACK; | |
1317 | break; | |
1318 | case USB_PID_SETUP: | |
1319 | if (urb->status != -EINPROGRESS) | |
1320 | finish = 1; | |
1321 | else if (urb->transfer_buffer_length == urb->actual_length) { | |
1322 | td->type = USB_PID_ACK; | |
1323 | urb->status = 0; | |
1324 | } else if (usb_pipeout(urb->pipe)) | |
1325 | td->type = USB_PID_OUT; | |
1326 | else | |
1327 | td->type = USB_PID_IN; | |
1328 | break; | |
1329 | case USB_PID_ACK: | |
1330 | finish = 1; | |
1331 | if (urb->status == -EINPROGRESS) | |
1332 | urb->status = 0; | |
1333 | break; | |
1334 | } | |
1335 | ||
1336 | if (finish) | |
1337 | finish_request(r8a66597, td, 0, urb); | |
1338 | else | |
1339 | start_transfer(r8a66597, td); | |
1340 | } | |
1341 | ||
1342 | static void set_urb_error(struct r8a66597 *r8a66597, u16 pipenum) | |
1343 | { | |
1344 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1345 | ||
1346 | if (td && td->urb) { | |
1347 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; | |
1348 | ||
1349 | if (pid == PID_NAK) | |
1350 | td->urb->status = -ECONNRESET; | |
1351 | else | |
1352 | td->urb->status = -EPIPE; | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1357 | { | |
1358 | u16 check; | |
1359 | u16 pipenum; | |
1360 | u16 mask; | |
1361 | struct r8a66597_td *td; | |
1362 | ||
1363 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1364 | & r8a66597_read(r8a66597, BRDYENB); | |
1365 | r8a66597_write(r8a66597, (u16)~mask, BRDYSTS); | |
1366 | if (mask & BRDY0) { | |
1367 | td = r8a66597_get_td(r8a66597, 0); | |
1368 | if (td && td->type == USB_PID_IN) | |
1369 | packet_read(r8a66597, 0); | |
1370 | else | |
1371 | pipe_irq_disable(r8a66597, 0); | |
1372 | check_next_phase(r8a66597); | |
1373 | } | |
1374 | ||
1375 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1376 | check = 1 << pipenum; | |
1377 | if (mask & check) { | |
1378 | td = r8a66597_get_td(r8a66597, pipenum); | |
1379 | if (unlikely(!td)) | |
1380 | continue; | |
1381 | ||
1382 | if (td->type == USB_PID_IN) | |
1383 | packet_read(r8a66597, pipenum); | |
1384 | else if (td->type == USB_PID_OUT) | |
1385 | packet_write(r8a66597, pipenum); | |
1386 | } | |
1387 | } | |
1388 | } | |
1389 | ||
1390 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1391 | { | |
1392 | u16 tmp; | |
1393 | u16 check; | |
1394 | u16 pipenum; | |
1395 | u16 mask; | |
1396 | struct r8a66597_td *td; | |
1397 | ||
1398 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1399 | & r8a66597_read(r8a66597, BEMPENB); | |
1400 | r8a66597_write(r8a66597, (u16)~mask, BEMPSTS); | |
1401 | if (mask & BEMP0) { | |
1402 | cfifo_change(r8a66597, 0); | |
1403 | td = r8a66597_get_td(r8a66597, 0); | |
1404 | if (td && td->type != USB_PID_OUT) | |
1405 | disable_irq_empty(r8a66597, 0); | |
1406 | check_next_phase(r8a66597); | |
1407 | } | |
1408 | ||
1409 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1410 | check = 1 << pipenum; | |
1411 | if (mask & check) { | |
1412 | struct r8a66597_td *td; | |
1413 | td = r8a66597_get_td(r8a66597, pipenum); | |
1414 | if (unlikely(!td)) | |
1415 | continue; | |
1416 | ||
1417 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1418 | if ((tmp & INBUFM) == 0) { | |
1419 | disable_irq_empty(r8a66597, pipenum); | |
1420 | pipe_irq_disable(r8a66597, pipenum); | |
1421 | if (td->urb->status == -EINPROGRESS) | |
1422 | td->urb->status = 0; | |
1423 | finish_request(r8a66597, td, pipenum, td->urb); | |
1424 | } | |
1425 | } | |
1426 | } | |
1427 | } | |
1428 | ||
1429 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1430 | { | |
1431 | u16 check; | |
1432 | u16 pipenum; | |
1433 | u16 mask; | |
1434 | ||
1435 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1436 | & r8a66597_read(r8a66597, NRDYENB); | |
1437 | r8a66597_write(r8a66597, (u16)~mask, NRDYSTS); | |
1438 | if (mask & NRDY0) { | |
1439 | cfifo_change(r8a66597, 0); | |
1440 | set_urb_error(r8a66597, 0); | |
1441 | pipe_irq_disable(r8a66597, 0); | |
1442 | check_next_phase(r8a66597); | |
1443 | } | |
1444 | ||
1445 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1446 | check = 1 << pipenum; | |
1447 | if (mask & check) { | |
1448 | struct r8a66597_td *td; | |
1449 | td = r8a66597_get_td(r8a66597, pipenum); | |
1450 | if (unlikely(!td)) | |
1451 | continue; | |
1452 | ||
1453 | set_urb_error(r8a66597, pipenum); | |
1454 | pipe_irq_disable(r8a66597, pipenum); | |
1455 | pipe_stop(r8a66597, td->pipe); | |
1456 | finish_request(r8a66597, td, pipenum, td->urb); | |
1457 | } | |
1458 | } | |
1459 | } | |
1460 | ||
1461 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port) | |
1462 | { | |
1463 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1464 | ||
1465 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1466 | rh->scount = R8A66597_MAX_SAMPLING; | |
1467 | mod_timer(&r8a66597->rh_timer, jiffies + msecs_to_jiffies(50)); | |
1468 | } | |
1469 | ||
1470 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) | |
1471 | { | |
1472 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1473 | u16 intsts0, intsts1, intsts2; | |
1474 | u16 intenb0, intenb1, intenb2; | |
1475 | u16 mask0, mask1, mask2; | |
1476 | ||
1477 | spin_lock(&r8a66597->lock); | |
1478 | ||
1479 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1480 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1481 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1482 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1483 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1484 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1485 | ||
1486 | mask2 = intsts2 & intenb2; | |
1487 | mask1 = intsts1 & intenb1; | |
1488 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1489 | if (mask2) { | |
1490 | if (mask2 & ATTCH) { | |
1491 | r8a66597_write(r8a66597, (u16)~ATTCH, INTSTS2); | |
1492 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); | |
1493 | ||
1494 | /* start usb bus sampling */ | |
1495 | start_root_hub_sampling(r8a66597, 1); | |
1496 | } | |
1497 | if (mask2 & DTCH) { | |
1498 | r8a66597_write(r8a66597, (u16)~DTCH, INTSTS2); | |
1499 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); | |
1500 | r8a66597_usb_disconnect(r8a66597, 1); | |
1501 | } | |
1502 | } | |
1503 | ||
1504 | if (mask1) { | |
1505 | if (mask1 & ATTCH) { | |
1506 | r8a66597_write(r8a66597, (u16)~ATTCH, INTSTS1); | |
1507 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); | |
1508 | ||
1509 | /* start usb bus sampling */ | |
1510 | start_root_hub_sampling(r8a66597, 0); | |
1511 | } | |
1512 | if (mask1 & DTCH) { | |
1513 | r8a66597_write(r8a66597, (u16)~DTCH, INTSTS1); | |
1514 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); | |
1515 | r8a66597_usb_disconnect(r8a66597, 0); | |
1516 | } | |
1517 | if (mask1 & SIGN) { | |
1518 | r8a66597_write(r8a66597, (u16)~SIGN, INTSTS1); | |
1519 | set_urb_error(r8a66597, 0); | |
1520 | check_next_phase(r8a66597); | |
1521 | } | |
1522 | if (mask1 & SACK) { | |
1523 | r8a66597_write(r8a66597, (u16)~SACK, INTSTS1); | |
1524 | check_next_phase(r8a66597); | |
1525 | } | |
1526 | } | |
1527 | if (mask0) { | |
1528 | if (mask0 & BRDY) | |
1529 | irq_pipe_ready(r8a66597); | |
1530 | if (mask0 & BEMP) | |
1531 | irq_pipe_empty(r8a66597); | |
1532 | if (mask0 & NRDY) | |
1533 | irq_pipe_nrdy(r8a66597); | |
1534 | } | |
1535 | ||
1536 | spin_unlock(&r8a66597->lock); | |
1537 | return IRQ_HANDLED; | |
1538 | } | |
1539 | ||
1540 | /* this function must be called with interrupt disabled */ | |
1541 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1542 | { | |
1543 | u16 tmp; | |
1544 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1545 | ||
1546 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1547 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1548 | ||
1549 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1550 | if ((tmp & USBRST) == USBRST) { | |
1551 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1552 | dvstctr_reg); | |
1553 | mod_timer(&r8a66597->rh_timer, | |
1554 | jiffies + msecs_to_jiffies(50)); | |
1555 | } else | |
1556 | r8a66597_usb_connect(r8a66597, port); | |
1557 | } | |
1558 | ||
1559 | if (rh->scount > 0) { | |
1560 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1561 | if (tmp == rh->old_syssts) { | |
1562 | rh->scount--; | |
1563 | if (rh->scount == 0) { | |
1564 | if (tmp == FS_JSTS) { | |
1565 | r8a66597_bset(r8a66597, HSE, | |
1566 | get_syscfg_reg(port)); | |
1567 | r8a66597_usb_preconnect(r8a66597, port); | |
1568 | } else if (tmp == LS_JSTS) { | |
1569 | r8a66597_bclr(r8a66597, HSE, | |
1570 | get_syscfg_reg(port)); | |
1571 | r8a66597_usb_preconnect(r8a66597, port); | |
1572 | } else if (tmp == SE0) | |
1573 | r8a66597_bset(r8a66597, ATTCHE, | |
1574 | get_intenb_reg(port)); | |
1575 | } else { | |
1576 | mod_timer(&r8a66597->rh_timer, | |
1577 | jiffies + msecs_to_jiffies(50)); | |
1578 | } | |
1579 | } else { | |
1580 | rh->scount = R8A66597_MAX_SAMPLING; | |
1581 | rh->old_syssts = tmp; | |
1582 | mod_timer(&r8a66597->rh_timer, | |
1583 | jiffies + msecs_to_jiffies(50)); | |
1584 | } | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | static void r8a66597_td_timer(unsigned long _r8a66597) | |
1589 | { | |
1590 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1591 | unsigned long flags; | |
1592 | u16 pipenum; | |
1593 | struct r8a66597_td *td, *new_td = NULL; | |
1594 | struct r8a66597_pipe *pipe; | |
1595 | ||
1596 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1597 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1598 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1599 | continue; | |
1600 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1601 | continue; | |
1602 | ||
1603 | td = r8a66597_get_td(r8a66597, pipenum); | |
1604 | if (!td) { | |
1605 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1606 | continue; | |
1607 | } | |
1608 | ||
1609 | if (td->urb->actual_length) { | |
1610 | set_td_timer(r8a66597, td); | |
1611 | break; | |
1612 | } | |
1613 | ||
1614 | pipe = td->pipe; | |
1615 | pipe_stop(r8a66597, pipe); | |
1616 | ||
1617 | new_td = td; | |
1618 | do { | |
1619 | list_move_tail(&new_td->queue, | |
1620 | &r8a66597->pipe_queue[pipenum]); | |
1621 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1622 | if (!new_td) { | |
1623 | new_td = td; | |
1624 | break; | |
1625 | } | |
1626 | } while (td != new_td && td->address == new_td->address); | |
1627 | ||
1628 | start_transfer(r8a66597, new_td); | |
1629 | ||
1630 | if (td == new_td) | |
1631 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1632 | else | |
1633 | set_td_timer(r8a66597, new_td); | |
1634 | break; | |
1635 | } | |
1636 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1637 | } | |
1638 | ||
1639 | static void r8a66597_timer(unsigned long _r8a66597) | |
1640 | { | |
1641 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1642 | unsigned long flags; | |
1643 | ||
1644 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1645 | ||
1646 | r8a66597_root_hub_control(r8a66597, 0); | |
1647 | r8a66597_root_hub_control(r8a66597, 1); | |
1648 | ||
1649 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1650 | } | |
1651 | ||
1652 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1653 | { | |
1654 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1655 | ||
1656 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1657 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1658 | return 1; | |
1659 | else | |
1660 | return 0; | |
1661 | } | |
1662 | ||
1663 | static int r8a66597_start(struct usb_hcd *hcd) | |
1664 | { | |
1665 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1666 | int ret; | |
1667 | ||
1668 | hcd->state = HC_STATE_RUNNING; | |
1669 | if ((ret = enable_controller(r8a66597)) < 0) | |
1670 | return ret; | |
1671 | ||
1672 | return 0; | |
1673 | } | |
1674 | ||
1675 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1676 | { | |
1677 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1678 | ||
1679 | disable_controller(r8a66597); | |
1680 | } | |
1681 | ||
1682 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1683 | { | |
1684 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1685 | u16 root_port, hub_port; | |
1686 | ||
1687 | if (usb_address == 0) { | |
1688 | get_port_number(urb->dev->devpath, | |
1689 | &root_port, &hub_port); | |
1690 | set_devadd_reg(r8a66597, 0, | |
1691 | get_r8a66597_usb_speed(urb->dev->speed), | |
1692 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1693 | hub_port, root_port); | |
1694 | } | |
1695 | } | |
1696 | ||
1697 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1698 | struct urb *urb, | |
1699 | struct usb_host_endpoint *hep, | |
1700 | gfp_t mem_flags) | |
1701 | { | |
1702 | struct r8a66597_td *td; | |
1703 | u16 pipenum; | |
1704 | ||
1705 | td = kzalloc(sizeof(struct r8a66597_td), mem_flags); | |
1706 | if (td == NULL) | |
1707 | return NULL; | |
1708 | ||
1709 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1710 | td->pipenum = pipenum; | |
1711 | td->pipe = hep->hcpriv; | |
1712 | td->urb = urb; | |
1713 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1714 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1715 | !usb_pipein(urb->pipe)); | |
1716 | if (usb_pipecontrol(urb->pipe)) | |
1717 | td->type = USB_PID_SETUP; | |
1718 | else if (usb_pipein(urb->pipe)) | |
1719 | td->type = USB_PID_IN; | |
1720 | else | |
1721 | td->type = USB_PID_OUT; | |
1722 | INIT_LIST_HEAD(&td->queue); | |
1723 | ||
1724 | return td; | |
1725 | } | |
1726 | ||
1727 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
1728 | struct usb_host_endpoint *hep, | |
1729 | struct urb *urb, | |
1730 | gfp_t mem_flags) | |
1731 | { | |
1732 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1733 | struct r8a66597_td *td = NULL; | |
1734 | int ret = 0, request = 0; | |
1735 | unsigned long flags; | |
1736 | ||
1737 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1738 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1739 | ret = -ENODEV; | |
1740 | goto error; | |
1741 | } | |
1742 | ||
1743 | if (!hep->hcpriv) { | |
1744 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), mem_flags); | |
1745 | if (!hep->hcpriv) { | |
1746 | ret = -ENOMEM; | |
1747 | goto error; | |
1748 | } | |
1749 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1750 | if (usb_pipeendpoint(urb->pipe)) | |
1751 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1752 | } | |
1753 | ||
1754 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1755 | init_pipe_config(r8a66597, urb); | |
1756 | ||
1757 | set_address_zero(r8a66597, urb); | |
1758 | td = r8a66597_make_td(r8a66597, urb, hep, mem_flags); | |
1759 | if (td == NULL) { | |
1760 | ret = -ENOMEM; | |
1761 | goto error; | |
1762 | } | |
1763 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1764 | request = 1; | |
1765 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
1766 | ||
1767 | spin_lock(&urb->lock); | |
1768 | if (urb->status != -EINPROGRESS) { | |
1769 | spin_unlock(&urb->lock); | |
1770 | ret = -EPIPE; | |
1771 | goto error; | |
1772 | } | |
1773 | urb->hcpriv = td; | |
1774 | spin_unlock(&urb->lock); | |
1775 | ||
1776 | if (request) { | |
1777 | ret = start_transfer(r8a66597, td); | |
1778 | if (ret < 0) { | |
1779 | list_del(&td->queue); | |
1780 | kfree(td); | |
1781 | } | |
1782 | } else | |
1783 | set_td_timer(r8a66597, td); | |
1784 | ||
1785 | error: | |
1786 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1787 | return ret; | |
1788 | } | |
1789 | ||
1790 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) | |
1791 | { | |
1792 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1793 | struct r8a66597_td *td; | |
1794 | unsigned long flags; | |
1795 | ||
1796 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1797 | if (urb->hcpriv) { | |
1798 | td = urb->hcpriv; | |
1799 | pipe_stop(r8a66597, td->pipe); | |
1800 | pipe_irq_disable(r8a66597, td->pipenum); | |
1801 | disable_irq_empty(r8a66597, td->pipenum); | |
1802 | done(r8a66597, td, td->pipenum, urb); | |
1803 | } | |
1804 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1805 | return 0; | |
1806 | } | |
1807 | ||
1808 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1809 | struct usb_host_endpoint *hep) | |
1810 | { | |
1811 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1812 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1813 | struct r8a66597_td *td; | |
1814 | struct urb *urb = NULL; | |
1815 | u16 pipenum; | |
1816 | unsigned long flags; | |
1817 | ||
1818 | if (pipe == NULL) | |
1819 | return; | |
1820 | pipenum = pipe->info.pipenum; | |
1821 | ||
1822 | if (pipenum == 0) { | |
1823 | kfree(hep->hcpriv); | |
1824 | hep->hcpriv = NULL; | |
1825 | return; | |
1826 | } | |
1827 | ||
1828 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1829 | pipe_stop(r8a66597, pipe); | |
1830 | pipe_irq_disable(r8a66597, pipenum); | |
1831 | disable_irq_empty(r8a66597, pipenum); | |
1832 | td = r8a66597_get_td(r8a66597, pipenum); | |
1833 | if (td) | |
1834 | urb = td->urb; | |
1835 | done(r8a66597, td, pipenum, urb); | |
1836 | kfree(hep->hcpriv); | |
1837 | hep->hcpriv = NULL; | |
1838 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1839 | } | |
1840 | ||
1841 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
1842 | { | |
1843 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1844 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
1845 | } | |
1846 | ||
1847 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
1848 | { | |
1849 | int chix; | |
1850 | ||
1851 | if (udev->state == USB_STATE_CONFIGURED && | |
1852 | udev->parent && udev->parent->devnum > 1 && | |
1853 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
1854 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
1855 | ||
1856 | for (chix = 0; chix < udev->maxchild; chix++) { | |
1857 | struct usb_device *childdev = udev->children[chix]; | |
1858 | ||
1859 | if (childdev) | |
1860 | collect_usb_address_map(childdev, map); | |
1861 | } | |
1862 | } | |
1863 | ||
1864 | /* this function must be called with interrupt disabled */ | |
1865 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
1866 | int addr) | |
1867 | { | |
1868 | struct r8a66597_device *dev; | |
1869 | struct list_head *list = &r8a66597->child_device; | |
1870 | ||
1871 | list_for_each_entry(dev, list, device_list) { | |
1872 | if (!dev) | |
1873 | continue; | |
1874 | if (dev->usb_address != addr) | |
1875 | continue; | |
1876 | ||
1877 | return dev; | |
1878 | } | |
1879 | ||
1880 | err("get_r8a66597_device fail.(%d)\n", addr); | |
1881 | return NULL; | |
1882 | } | |
1883 | ||
1884 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
1885 | struct usb_device *root_hub, | |
1886 | unsigned long *map) | |
1887 | { | |
1888 | int i, j, addr; | |
1889 | unsigned long diff; | |
1890 | unsigned long flags; | |
1891 | ||
1892 | for (i = 0; i < 4; i++) { | |
1893 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
1894 | if (!diff) | |
1895 | continue; | |
1896 | ||
1897 | for (j = 0; j < 32; j++) { | |
1898 | if (!(diff & (1 << j))) | |
1899 | continue; | |
1900 | ||
1901 | addr = i * 32 + j; | |
1902 | if (map[i] & (1 << j)) | |
1903 | set_child_connect_map(r8a66597, addr); | |
1904 | else { | |
1905 | struct r8a66597_device *dev; | |
1906 | ||
1907 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1908 | dev = get_r8a66597_device(r8a66597, addr); | |
1909 | disable_r8a66597_pipe_all(r8a66597, dev); | |
1910 | free_usb_address(r8a66597, dev); | |
1911 | put_child_connect_map(r8a66597, addr); | |
1912 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1913 | } | |
1914 | } | |
1915 | } | |
1916 | } | |
1917 | ||
1918 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
1919 | struct usb_hcd *hcd) | |
1920 | { | |
1921 | struct usb_bus *bus; | |
1922 | unsigned long now_map[4]; | |
1923 | ||
1924 | memset(now_map, 0, sizeof(now_map)); | |
1925 | ||
1926 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
1927 | if (!bus->root_hub) | |
1928 | continue; | |
1929 | ||
1930 | if (bus->busnum != hcd->self.busnum) | |
1931 | continue; | |
1932 | ||
1933 | collect_usb_address_map(bus->root_hub, now_map); | |
1934 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
1935 | } | |
1936 | } | |
1937 | ||
1938 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
1939 | { | |
1940 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1941 | unsigned long flags; | |
1942 | int i; | |
1943 | ||
1944 | r8a66597_check_detect_child(r8a66597, hcd); | |
1945 | ||
1946 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1947 | ||
1948 | *buf = 0; /* initialize (no change) */ | |
1949 | ||
1950 | for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) { | |
1951 | if (r8a66597->root_hub[i].port & 0xffff0000) | |
1952 | *buf |= 1 << (i + 1); | |
1953 | } | |
1954 | ||
1955 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1956 | ||
1957 | return (*buf != 0); | |
1958 | } | |
1959 | ||
1960 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
1961 | struct usb_hub_descriptor *desc) | |
1962 | { | |
1963 | desc->bDescriptorType = 0x29; | |
1964 | desc->bHubContrCurrent = 0; | |
1965 | desc->bNbrPorts = R8A66597_MAX_ROOT_HUB; | |
1966 | desc->bDescLength = 9; | |
1967 | desc->bPwrOn2PwrGood = 0; | |
1968 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
1969 | desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1; | |
1970 | desc->bitmap[1] = ~0; | |
1971 | } | |
1972 | ||
1973 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
1974 | u16 wIndex, char *buf, u16 wLength) | |
1975 | { | |
1976 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1977 | int ret; | |
1978 | int port = (wIndex & 0x00FF) - 1; | |
1979 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1980 | unsigned long flags; | |
1981 | ||
1982 | ret = 0; | |
1983 | ||
1984 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1985 | switch (typeReq) { | |
1986 | case ClearHubFeature: | |
1987 | case SetHubFeature: | |
1988 | switch (wValue) { | |
1989 | case C_HUB_OVER_CURRENT: | |
1990 | case C_HUB_LOCAL_POWER: | |
1991 | break; | |
1992 | default: | |
1993 | goto error; | |
1994 | } | |
1995 | break; | |
1996 | case ClearPortFeature: | |
1997 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
1998 | goto error; | |
1999 | if (wLength != 0) | |
2000 | goto error; | |
2001 | ||
2002 | switch (wValue) { | |
2003 | case USB_PORT_FEAT_ENABLE: | |
2004 | rh->port &= (1 << USB_PORT_FEAT_POWER); | |
2005 | break; | |
2006 | case USB_PORT_FEAT_SUSPEND: | |
2007 | break; | |
2008 | case USB_PORT_FEAT_POWER: | |
2009 | r8a66597_port_power(r8a66597, port, 0); | |
2010 | break; | |
2011 | case USB_PORT_FEAT_C_ENABLE: | |
2012 | case USB_PORT_FEAT_C_SUSPEND: | |
2013 | case USB_PORT_FEAT_C_CONNECTION: | |
2014 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2015 | case USB_PORT_FEAT_C_RESET: | |
2016 | break; | |
2017 | default: | |
2018 | goto error; | |
2019 | } | |
2020 | rh->port &= ~(1 << wValue); | |
2021 | break; | |
2022 | case GetHubDescriptor: | |
2023 | r8a66597_hub_descriptor(r8a66597, | |
2024 | (struct usb_hub_descriptor *)buf); | |
2025 | break; | |
2026 | case GetHubStatus: | |
2027 | *buf = 0x00; | |
2028 | break; | |
2029 | case GetPortStatus: | |
2030 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2031 | goto error; | |
2032 | *(u32 *)buf = rh->port; | |
2033 | break; | |
2034 | case SetPortFeature: | |
2035 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2036 | goto error; | |
2037 | if (wLength != 0) | |
2038 | goto error; | |
2039 | ||
2040 | switch (wValue) { | |
2041 | case USB_PORT_FEAT_SUSPEND: | |
2042 | break; | |
2043 | case USB_PORT_FEAT_POWER: | |
2044 | r8a66597_port_power(r8a66597, port, 1); | |
2045 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2046 | break; | |
2047 | case USB_PORT_FEAT_RESET: { | |
2048 | struct r8a66597_device *dev = rh->dev; | |
2049 | ||
2050 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2051 | ||
2052 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2053 | free_usb_address(r8a66597, dev); | |
2054 | ||
2055 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2056 | get_dvstctr_reg(port)); | |
2057 | mod_timer(&r8a66597->rh_timer, | |
2058 | jiffies + msecs_to_jiffies(50)); | |
2059 | } | |
2060 | break; | |
2061 | default: | |
2062 | goto error; | |
2063 | } | |
2064 | rh->port |= 1 << wValue; | |
2065 | break; | |
2066 | default: | |
2067 | error: | |
2068 | ret = -EPIPE; | |
2069 | break; | |
2070 | } | |
2071 | ||
2072 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2073 | return ret; | |
2074 | } | |
2075 | ||
2076 | static struct hc_driver r8a66597_hc_driver = { | |
2077 | .description = hcd_name, | |
2078 | .hcd_priv_size = sizeof(struct r8a66597), | |
2079 | .irq = r8a66597_irq, | |
2080 | ||
2081 | /* | |
2082 | * generic hardware linkage | |
2083 | */ | |
2084 | .flags = HCD_USB2, | |
2085 | ||
2086 | .start = r8a66597_start, | |
2087 | .stop = r8a66597_stop, | |
2088 | ||
2089 | /* | |
2090 | * managing i/o requests and associated device resources | |
2091 | */ | |
2092 | .urb_enqueue = r8a66597_urb_enqueue, | |
2093 | .urb_dequeue = r8a66597_urb_dequeue, | |
2094 | .endpoint_disable = r8a66597_endpoint_disable, | |
2095 | ||
2096 | /* | |
2097 | * periodic schedule support | |
2098 | */ | |
2099 | .get_frame_number = r8a66597_get_frame, | |
2100 | ||
2101 | /* | |
2102 | * root hub support | |
2103 | */ | |
2104 | .hub_status_data = r8a66597_hub_status_data, | |
2105 | .hub_control = r8a66597_hub_control, | |
2106 | }; | |
2107 | ||
2108 | #if defined(CONFIG_PM) | |
2109 | static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) | |
2110 | { | |
2111 | pdev->dev.power.power_state = state; | |
2112 | return 0; | |
2113 | } | |
2114 | ||
2115 | static int r8a66597_resume(struct platform_device *pdev) | |
2116 | { | |
2117 | pdev->dev.power.power_state = PMSG_ON; | |
2118 | return 0; | |
2119 | } | |
2120 | #else /* if defined(CONFIG_PM) */ | |
2121 | #define r8a66597_suspend NULL | |
2122 | #define r8a66597_resume NULL | |
2123 | #endif | |
2124 | ||
2125 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2126 | { | |
2127 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2128 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2129 | ||
2130 | del_timer_sync(&r8a66597->rh_timer); | |
2131 | iounmap((void *)r8a66597->reg); | |
2132 | usb_remove_hcd(hcd); | |
2133 | usb_put_hcd(hcd); | |
2134 | return 0; | |
2135 | } | |
2136 | ||
2137 | #define resource_len(r) (((r)->end - (r)->start) + 1) | |
2138 | static int __init r8a66597_probe(struct platform_device *pdev) | |
2139 | { | |
2140 | struct resource *res = NULL; | |
2141 | int irq = -1; | |
2142 | void __iomem *reg = NULL; | |
2143 | struct usb_hcd *hcd = NULL; | |
2144 | struct r8a66597 *r8a66597; | |
2145 | int ret = 0; | |
2146 | int i; | |
2147 | ||
2148 | if (pdev->dev.dma_mask) { | |
2149 | ret = -EINVAL; | |
2150 | err("dma not support"); | |
2151 | goto clean_up; | |
2152 | } | |
2153 | ||
2154 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, | |
2155 | (char *)hcd_name); | |
2156 | if (!res) { | |
2157 | ret = -ENODEV; | |
2158 | err("platform_get_resource_byname error."); | |
2159 | goto clean_up; | |
2160 | } | |
2161 | ||
2162 | irq = platform_get_irq(pdev, 0); | |
2163 | if (irq < 0) { | |
2164 | ret = -ENODEV; | |
2165 | err("platform_get_irq error."); | |
2166 | goto clean_up; | |
2167 | } | |
2168 | ||
2169 | reg = ioremap(res->start, resource_len(res)); | |
2170 | if (reg == NULL) { | |
2171 | ret = -ENOMEM; | |
2172 | err("ioremap error."); | |
2173 | goto clean_up; | |
2174 | } | |
2175 | ||
2176 | /* initialize hcd */ | |
2177 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2178 | if (!hcd) { | |
2179 | ret = -ENOMEM; | |
2180 | err("Failed to create hcd"); | |
2181 | goto clean_up; | |
2182 | } | |
2183 | r8a66597 = hcd_to_r8a66597(hcd); | |
2184 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2185 | dev_set_drvdata(&pdev->dev, r8a66597); | |
2186 | ||
2187 | spin_lock_init(&r8a66597->lock); | |
2188 | init_timer(&r8a66597->rh_timer); | |
2189 | r8a66597->rh_timer.function = r8a66597_timer; | |
2190 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2191 | r8a66597->reg = (unsigned long)reg; | |
2192 | ||
2193 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { | |
2194 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2195 | init_timer(&r8a66597->td_timer[i]); | |
2196 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2197 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
2198 | } | |
2199 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2200 | ||
2201 | hcd->rsrc_start = res->start; | |
2202 | ret = usb_add_hcd(hcd, irq, 0); | |
2203 | if (ret != 0) { | |
2204 | err("Failed to add hcd"); | |
2205 | goto clean_up; | |
2206 | } | |
2207 | ||
2208 | return 0; | |
2209 | ||
2210 | clean_up: | |
2211 | if (reg) | |
2212 | iounmap(reg); | |
2213 | if (res) | |
2214 | release_mem_region(res->start, 1); | |
2215 | ||
2216 | return ret; | |
2217 | } | |
2218 | ||
2219 | static struct platform_driver r8a66597_driver = { | |
2220 | .probe = r8a66597_probe, | |
2221 | .remove = r8a66597_remove, | |
2222 | .suspend = r8a66597_suspend, | |
2223 | .resume = r8a66597_resume, | |
2224 | .driver = { | |
2225 | .name = (char *) hcd_name, | |
2226 | }, | |
2227 | }; | |
2228 | ||
2229 | static int __init r8a66597_init(void) | |
2230 | { | |
2231 | if (usb_disabled()) | |
2232 | return -ENODEV; | |
2233 | ||
2234 | info("driver %s, %s", hcd_name, DRIVER_VERSION); | |
2235 | return platform_driver_register(&r8a66597_driver); | |
2236 | } | |
2237 | module_init(r8a66597_init); | |
2238 | ||
2239 | static void __exit r8a66597_cleanup(void) | |
2240 | { | |
2241 | platform_driver_unregister(&r8a66597_driver); | |
2242 | } | |
2243 | module_exit(r8a66597_cleanup); | |
2244 |