Commit | Line | Data |
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5d304358 YS |
1 | /* |
2 | * R8A66597 HCD (Host Controller Driver) | |
3 | * | |
4 | * Copyright (C) 2006-2007 Renesas Solutions Corp. | |
5 | * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO) | |
6 | * Portions Copyright (C) 2004-2005 David Brownell | |
7 | * Portions Copyright (C) 1999 Roman Weissgaerber | |
8 | * | |
9 | * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; version 2 of the License. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/sched.h> | |
29 | #include <linux/smp_lock.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/timer.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/list.h> | |
35 | #include <linux/interrupt.h> | |
36 | #include <linux/usb.h> | |
37 | #include <linux/platform_device.h> | |
e294531d YS |
38 | #include <linux/io.h> |
39 | #include <linux/irq.h> | |
5d304358 YS |
40 | |
41 | #include "../core/hcd.h" | |
42 | #include "r8a66597.h" | |
43 | ||
44 | MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); | |
45 | MODULE_LICENSE("GPL"); | |
46 | MODULE_AUTHOR("Yoshihiro Shimoda"); | |
f4fce61d | 47 | MODULE_ALIAS("platform:r8a66597_hcd"); |
5d304358 | 48 | |
5effabbe | 49 | #define DRIVER_VERSION "2009-05-26" |
5d304358 YS |
50 | |
51 | static const char hcd_name[] = "r8a66597_hcd"; | |
52 | ||
5d304358 YS |
53 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); |
54 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
55 | ||
56 | /* this function must be called with interrupt disabled */ | |
57 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
58 | unsigned long reg) | |
59 | { | |
60 | u16 tmp; | |
61 | ||
62 | tmp = r8a66597_read(r8a66597, INTENB0); | |
63 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
64 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
65 | r8a66597_write(r8a66597, tmp, INTENB0); | |
66 | } | |
67 | ||
68 | /* this function must be called with interrupt disabled */ | |
69 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
70 | unsigned long reg) | |
71 | { | |
72 | u16 tmp; | |
73 | ||
74 | tmp = r8a66597_read(r8a66597, INTENB0); | |
75 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
76 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
77 | r8a66597_write(r8a66597, tmp, INTENB0); | |
78 | } | |
79 | ||
80 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
81 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
82 | { | |
83 | u16 val; | |
84 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
85 | ||
86 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
87 | r8a66597_write(r8a66597, val, devadd_reg); | |
88 | } | |
89 | ||
9424ea29 | 90 | static int r8a66597_clock_enable(struct r8a66597 *r8a66597) |
5d304358 YS |
91 | { |
92 | u16 tmp; | |
93 | int i = 0; | |
94 | ||
9424ea29 | 95 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
765786e0 MD |
96 | #if defined(CONFIG_HAVE_CLK) |
97 | clk_enable(r8a66597->clk); | |
98 | #endif | |
9424ea29 YS |
99 | do { |
100 | r8a66597_write(r8a66597, SCKE, SYSCFG0); | |
101 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
102 | if (i++ > 1000) { | |
802f389a | 103 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
9424ea29 YS |
104 | return -ENXIO; |
105 | } | |
106 | } while ((tmp & SCKE) != SCKE); | |
107 | r8a66597_write(r8a66597, 0x04, 0x02); | |
108 | #else | |
5d304358 YS |
109 | do { |
110 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
111 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
112 | if (i++ > 1000) { | |
802f389a | 113 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
5d304358 YS |
114 | return -ENXIO; |
115 | } | |
116 | } while ((tmp & USBE) != USBE); | |
117 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
5effabbe YS |
118 | r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata), XTAL, |
119 | SYSCFG0); | |
5d304358 YS |
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) { | |
802f389a | 127 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
5d304358 YS |
128 | return -ENXIO; |
129 | } | |
130 | } while ((tmp & SCKE) != SCKE); | |
9424ea29 YS |
131 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | static void r8a66597_clock_disable(struct r8a66597 *r8a66597) | |
137 | { | |
138 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
139 | udelay(1); | |
765786e0 MD |
140 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
141 | #if defined(CONFIG_HAVE_CLK) | |
142 | clk_disable(r8a66597->clk); | |
143 | #endif | |
144 | #else | |
9424ea29 YS |
145 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); |
146 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
147 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
148 | #endif | |
149 | } | |
150 | ||
151 | static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) | |
152 | { | |
153 | u16 val; | |
154 | ||
155 | val = port ? DRPD : DCFM | DRPD; | |
156 | r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); | |
157 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
158 | ||
159 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); | |
160 | r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port)); | |
161 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
162 | } | |
163 | ||
164 | static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) | |
165 | { | |
166 | u16 val, tmp; | |
167 | ||
168 | r8a66597_write(r8a66597, 0, get_intenb_reg(port)); | |
169 | r8a66597_write(r8a66597, 0, get_intsts_reg(port)); | |
5d304358 | 170 | |
9424ea29 YS |
171 | r8a66597_port_power(r8a66597, port, 0); |
172 | ||
173 | do { | |
174 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
175 | udelay(640); | |
176 | } while (tmp == EDGESTS); | |
177 | ||
178 | val = port ? DRPD : DCFM | DRPD; | |
179 | r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); | |
180 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
181 | } | |
182 | ||
183 | static int enable_controller(struct r8a66597 *r8a66597) | |
184 | { | |
185 | int ret, port; | |
5effabbe YS |
186 | u16 vif = r8a66597->pdata->vif ? LDRV : 0; |
187 | u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0; | |
188 | u16 endian = r8a66597->pdata->endian ? BIGEND : 0; | |
9424ea29 YS |
189 | |
190 | ret = r8a66597_clock_enable(r8a66597); | |
191 | if (ret < 0) | |
192 | return ret; | |
5d304358 YS |
193 | |
194 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
5d304358 YS |
195 | r8a66597_bset(r8a66597, USBE, SYSCFG0); |
196 | ||
197 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
198 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
199 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
200 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
201 | ||
5d304358 YS |
202 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); |
203 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
204 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
5d304358 YS |
205 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); |
206 | ||
207 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
9424ea29 YS |
208 | |
209 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) | |
210 | r8a66597_enable_port(r8a66597, port); | |
5d304358 YS |
211 | |
212 | return 0; | |
213 | } | |
214 | ||
215 | static void disable_controller(struct r8a66597 *r8a66597) | |
216 | { | |
9424ea29 | 217 | int port; |
5d304358 YS |
218 | |
219 | r8a66597_write(r8a66597, 0, INTENB0); | |
5d304358 | 220 | r8a66597_write(r8a66597, 0, INTSTS0); |
5d304358 | 221 | |
9424ea29 YS |
222 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
223 | r8a66597_disable_port(r8a66597, port); | |
5d304358 | 224 | |
9424ea29 | 225 | r8a66597_clock_disable(r8a66597); |
5d304358 YS |
226 | } |
227 | ||
228 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
229 | struct usb_device *udev) | |
230 | { | |
231 | struct r8a66597_device *dev; | |
232 | ||
233 | if (udev->parent && udev->parent->devnum != 1) | |
234 | udev = udev->parent; | |
235 | ||
236 | dev = dev_get_drvdata(&udev->dev); | |
237 | if (dev) | |
238 | return dev->address; | |
239 | else | |
240 | return 0; | |
241 | } | |
242 | ||
243 | static int is_child_device(char *devpath) | |
244 | { | |
245 | return (devpath[2] ? 1 : 0); | |
246 | } | |
247 | ||
248 | static int is_hub_limit(char *devpath) | |
249 | { | |
250 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
251 | } | |
252 | ||
253 | static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) | |
254 | { | |
255 | if (root_port) { | |
256 | *root_port = (devpath[0] & 0x0F) - 1; | |
257 | if (*root_port >= R8A66597_MAX_ROOT_HUB) | |
802f389a | 258 | printk(KERN_ERR "r8a66597: Illegal root port number.\n"); |
5d304358 YS |
259 | } |
260 | if (hub_port) | |
261 | *hub_port = devpath[2] & 0x0F; | |
262 | } | |
263 | ||
264 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
265 | { | |
266 | u16 usbspd = 0; | |
267 | ||
268 | switch (speed) { | |
269 | case USB_SPEED_LOW: | |
270 | usbspd = LSMODE; | |
271 | break; | |
272 | case USB_SPEED_FULL: | |
273 | usbspd = FSMODE; | |
274 | break; | |
275 | case USB_SPEED_HIGH: | |
276 | usbspd = HSMODE; | |
277 | break; | |
278 | default: | |
802f389a | 279 | printk(KERN_ERR "r8a66597: unknown speed\n"); |
5d304358 YS |
280 | break; |
281 | } | |
282 | ||
283 | return usbspd; | |
284 | } | |
285 | ||
286 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
287 | { | |
288 | int idx; | |
289 | ||
290 | idx = address / 32; | |
291 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
292 | } | |
293 | ||
294 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
295 | { | |
296 | int idx; | |
297 | ||
298 | idx = address / 32; | |
299 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
300 | } | |
301 | ||
302 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
303 | { | |
304 | u16 pipenum = pipe->info.pipenum; | |
fe9b9034 ML |
305 | const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; |
306 | const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
307 | const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
5d304358 YS |
308 | |
309 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
310 | dma_ch = R8A66597_PIPE_NO_DMA; | |
311 | ||
312 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
313 | pipe->fifosel = fifosel[dma_ch]; | |
314 | pipe->fifoctr = fifoctr[dma_ch]; | |
315 | ||
316 | if (pipenum == 0) | |
317 | pipe->pipectr = DCPCTR; | |
318 | else | |
319 | pipe->pipectr = get_pipectr_addr(pipenum); | |
320 | ||
321 | if (check_bulk_or_isoc(pipenum)) { | |
322 | pipe->pipetre = get_pipetre_addr(pipenum); | |
323 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
324 | } else { | |
325 | pipe->pipetre = 0; | |
326 | pipe->pipetrn = 0; | |
327 | } | |
328 | } | |
329 | ||
330 | static struct r8a66597_device * | |
331 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
332 | { | |
333 | if (usb_pipedevice(urb->pipe) == 0) | |
334 | return &r8a66597->device0; | |
335 | ||
336 | return dev_get_drvdata(&urb->dev->dev); | |
337 | } | |
338 | ||
339 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
340 | struct urb *urb, u8 addr) | |
341 | { | |
342 | struct r8a66597_device *dev; | |
343 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
344 | ||
e294531d | 345 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
346 | if (dev == NULL) |
347 | return -ENOMEM; | |
348 | ||
349 | dev_set_drvdata(&urb->dev->dev, dev); | |
350 | dev->udev = urb->dev; | |
351 | dev->address = addr; | |
352 | dev->usb_address = usb_address; | |
353 | dev->state = USB_STATE_ADDRESS; | |
354 | dev->ep_in_toggle = 0; | |
355 | dev->ep_out_toggle = 0; | |
356 | INIT_LIST_HEAD(&dev->device_list); | |
357 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
358 | ||
359 | get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port); | |
360 | if (!is_child_device(urb->dev->devpath)) | |
361 | r8a66597->root_hub[dev->root_port].dev = dev; | |
362 | ||
363 | set_devadd_reg(r8a66597, dev->address, | |
364 | get_r8a66597_usb_speed(urb->dev->speed), | |
365 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
366 | dev->hub_port, dev->root_port); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | /* this function must be called with interrupt disabled */ | |
372 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
373 | { | |
374 | u8 addr; /* R8A66597's address */ | |
375 | struct r8a66597_device *dev; | |
376 | ||
377 | if (is_hub_limit(urb->dev->devpath)) { | |
802f389a | 378 | dev_err(&urb->dev->dev, "External hub limit reached.\n"); |
5d304358 YS |
379 | return 0; |
380 | } | |
381 | ||
382 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
383 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
384 | return dev->address; | |
385 | ||
386 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
387 | if (r8a66597->address_map & (1 << addr)) | |
388 | continue; | |
389 | ||
390 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
391 | r8a66597->address_map |= 1 << addr; | |
392 | ||
393 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
394 | return 0; | |
395 | ||
396 | return addr; | |
397 | } | |
398 | ||
802f389a GKH |
399 | dev_err(&urb->dev->dev, |
400 | "cannot communicate with a USB device more than 10.(%x)\n", | |
401 | r8a66597->address_map); | |
5d304358 YS |
402 | |
403 | return 0; | |
404 | } | |
405 | ||
406 | /* this function must be called with interrupt disabled */ | |
407 | static void free_usb_address(struct r8a66597 *r8a66597, | |
408 | struct r8a66597_device *dev) | |
409 | { | |
410 | int port; | |
411 | ||
412 | if (!dev) | |
413 | return; | |
414 | ||
415 | dbg("free_addr: addr=%d", dev->address); | |
416 | ||
417 | dev->state = USB_STATE_DEFAULT; | |
418 | r8a66597->address_map &= ~(1 << dev->address); | |
419 | dev->address = 0; | |
420 | dev_set_drvdata(&dev->udev->dev, NULL); | |
421 | list_del(&dev->device_list); | |
422 | kfree(dev); | |
423 | ||
424 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
425 | if (r8a66597->root_hub[port].dev == dev) { | |
426 | r8a66597->root_hub[port].dev = NULL; | |
427 | break; | |
428 | } | |
429 | } | |
430 | } | |
431 | ||
432 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
433 | u16 mask, u16 loop) | |
434 | { | |
435 | u16 tmp; | |
436 | int i = 0; | |
437 | ||
438 | do { | |
439 | tmp = r8a66597_read(r8a66597, reg); | |
440 | if (i++ > 1000000) { | |
802f389a GKH |
441 | printk(KERN_ERR "r8a66597: register%lx, loop %x " |
442 | "is timeout\n", reg, loop); | |
5d304358 YS |
443 | break; |
444 | } | |
445 | ndelay(1); | |
446 | } while ((tmp & mask) != loop); | |
447 | } | |
448 | ||
449 | /* this function must be called with interrupt disabled */ | |
450 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
451 | { | |
452 | u16 tmp; | |
453 | ||
454 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
455 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
456 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
457 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
458 | } | |
459 | ||
460 | /* this function must be called with interrupt disabled */ | |
461 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
462 | { | |
463 | u16 tmp; | |
464 | ||
465 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
466 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
467 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
468 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
469 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
470 | } | |
471 | ||
472 | /* this function must be called with interrupt disabled */ | |
473 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
474 | struct r8a66597_pipe *pipe) | |
475 | { | |
476 | u16 tmp; | |
477 | ||
478 | if (!pipe || pipe->info.pipenum == 0) | |
479 | return; | |
480 | ||
481 | pipe_stop(r8a66597, pipe); | |
482 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
483 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
484 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
485 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
486 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
487 | } | |
488 | ||
489 | /* this function must be called with interrupt disabled */ | |
490 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
491 | struct r8a66597_pipe *pipe, int toggle) | |
492 | { | |
493 | if (toggle) | |
494 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
495 | else | |
496 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
497 | } | |
498 | ||
499 | /* this function must be called with interrupt disabled */ | |
500 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
501 | { | |
502 | r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); | |
503 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); | |
504 | } | |
505 | ||
506 | /* this function must be called with interrupt disabled */ | |
507 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
508 | struct r8a66597_pipe *pipe) | |
509 | { | |
510 | cfifo_change(r8a66597, 0); | |
511 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL); | |
512 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL); | |
513 | ||
514 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE, | |
515 | pipe->fifosel); | |
516 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
517 | } | |
518 | ||
519 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
520 | { | |
521 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
522 | ||
523 | if (usb_pipeendpoint(urb->pipe) == 0) | |
524 | return 0; | |
525 | else | |
526 | return pipe->info.pipenum; | |
527 | } | |
528 | ||
529 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
530 | { | |
531 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
532 | ||
533 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
534 | } | |
535 | ||
536 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
537 | int urb_pipe) | |
538 | { | |
539 | if (!dev) | |
540 | return NULL; | |
541 | ||
542 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
543 | } | |
544 | ||
545 | /* this function must be called with interrupt disabled */ | |
546 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
547 | struct r8a66597_pipe *pipe, | |
548 | struct urb *urb, int set) | |
549 | { | |
550 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
551 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
552 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
553 | ||
554 | if (!toggle) | |
555 | return; | |
556 | ||
557 | if (set) | |
558 | *toggle |= 1 << endpoint; | |
559 | else | |
560 | *toggle &= ~(1 << endpoint); | |
561 | } | |
562 | ||
563 | /* this function must be called with interrupt disabled */ | |
564 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
565 | struct r8a66597_pipe *pipe, | |
566 | struct urb *urb) | |
567 | { | |
568 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
569 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
570 | else | |
571 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
572 | } | |
573 | ||
574 | /* this function must be called with interrupt disabled */ | |
575 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
576 | struct r8a66597_pipe *pipe, | |
577 | struct urb *urb) | |
578 | { | |
579 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
580 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
581 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
582 | ||
f6ace2c9 YS |
583 | if (!toggle) |
584 | return; | |
585 | ||
5d304358 YS |
586 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
587 | } | |
588 | ||
589 | /* this function must be called with interrupt disabled */ | |
590 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
591 | struct r8a66597_pipe_info *info) | |
592 | { | |
593 | u16 val = 0; | |
594 | ||
595 | if (info->pipenum == 0) | |
596 | return; | |
597 | ||
598 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
599 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
600 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
601 | if (!info->dir_in) | |
602 | val |= R8A66597_DIR; | |
603 | if (info->type == R8A66597_BULK && info->dir_in) | |
604 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
605 | val |= info->type | info->epnum; | |
606 | r8a66597_write(r8a66597, val, PIPECFG); | |
607 | ||
608 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
609 | PIPEBUF); | |
610 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
611 | PIPEMAXP); | |
5d304358 YS |
612 | r8a66597_write(r8a66597, info->interval, PIPEPERI); |
613 | } | |
614 | ||
5d304358 YS |
615 | /* this function must be called with interrupt disabled */ |
616 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
617 | { | |
618 | struct r8a66597_pipe_info *info; | |
619 | struct urb *urb = td->urb; | |
620 | ||
621 | if (td->pipenum > 0) { | |
622 | info = &td->pipe->info; | |
623 | cfifo_change(r8a66597, 0); | |
624 | pipe_buffer_setting(r8a66597, info); | |
625 | ||
626 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
627 | usb_pipeout(urb->pipe)) && | |
628 | !usb_pipecontrol(urb->pipe)) { | |
629 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
630 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
631 | clear_all_buffer(r8a66597, td->pipe); | |
632 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
633 | usb_pipeout(urb->pipe), 1); | |
634 | } | |
635 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
636 | } | |
637 | } | |
638 | ||
639 | /* this function must be called with interrupt disabled */ | |
640 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
641 | struct usb_endpoint_descriptor *ep) | |
642 | { | |
643 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
644 | ||
645 | memset(array, 0, sizeof(array)); | |
2e0fe709 | 646 | switch (usb_endpoint_type(ep)) { |
e294531d | 647 | case USB_ENDPOINT_XFER_BULK: |
2e0fe709 | 648 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
649 | array[i++] = 4; |
650 | else { | |
651 | array[i++] = 3; | |
652 | array[i++] = 5; | |
653 | } | |
e294531d YS |
654 | break; |
655 | case USB_ENDPOINT_XFER_INT: | |
2e0fe709 | 656 | if (usb_endpoint_dir_in(ep)) { |
5d304358 YS |
657 | array[i++] = 6; |
658 | array[i++] = 7; | |
659 | array[i++] = 8; | |
660 | } else | |
661 | array[i++] = 9; | |
e294531d YS |
662 | break; |
663 | case USB_ENDPOINT_XFER_ISOC: | |
2e0fe709 | 664 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
665 | array[i++] = 2; |
666 | else | |
667 | array[i++] = 1; | |
e294531d YS |
668 | break; |
669 | default: | |
802f389a | 670 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
e294531d YS |
671 | return 0; |
672 | } | |
5d304358 YS |
673 | |
674 | i = 1; | |
675 | min = array[0]; | |
676 | while (array[i] != 0) { | |
677 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
678 | min = array[i]; | |
679 | i++; | |
680 | } | |
681 | ||
682 | return min; | |
683 | } | |
684 | ||
685 | static u16 get_r8a66597_type(__u8 type) | |
686 | { | |
687 | u16 r8a66597_type; | |
688 | ||
e294531d | 689 | switch (type) { |
5d304358 YS |
690 | case USB_ENDPOINT_XFER_BULK: |
691 | r8a66597_type = R8A66597_BULK; | |
692 | break; | |
693 | case USB_ENDPOINT_XFER_INT: | |
694 | r8a66597_type = R8A66597_INT; | |
695 | break; | |
696 | case USB_ENDPOINT_XFER_ISOC: | |
697 | r8a66597_type = R8A66597_ISO; | |
698 | break; | |
699 | default: | |
802f389a | 700 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
5d304358 YS |
701 | r8a66597_type = 0x0000; |
702 | break; | |
703 | } | |
704 | ||
705 | return r8a66597_type; | |
706 | } | |
707 | ||
708 | static u16 get_bufnum(u16 pipenum) | |
709 | { | |
710 | u16 bufnum = 0; | |
711 | ||
712 | if (pipenum == 0) | |
713 | bufnum = 0; | |
714 | else if (check_bulk_or_isoc(pipenum)) | |
715 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
716 | else if (check_interrupt(pipenum)) | |
717 | bufnum = 4 + (pipenum - 6); | |
718 | else | |
802f389a | 719 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
720 | |
721 | return bufnum; | |
722 | } | |
723 | ||
724 | static u16 get_buf_bsize(u16 pipenum) | |
725 | { | |
726 | u16 buf_bsize = 0; | |
727 | ||
728 | if (pipenum == 0) | |
729 | buf_bsize = 3; | |
730 | else if (check_bulk_or_isoc(pipenum)) | |
731 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
732 | else if (check_interrupt(pipenum)) | |
733 | buf_bsize = 0; | |
734 | else | |
802f389a | 735 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
736 | |
737 | return buf_bsize; | |
738 | } | |
739 | ||
740 | /* this function must be called with interrupt disabled */ | |
741 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
742 | struct r8a66597_device *dev, | |
743 | struct r8a66597_pipe *pipe, | |
744 | struct urb *urb) | |
745 | { | |
9424ea29 | 746 | #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
5d304358 YS |
747 | int i; |
748 | struct r8a66597_pipe_info *info = &pipe->info; | |
749 | ||
750 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
751 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
752 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
753 | continue; | |
754 | ||
5909f6ea GKH |
755 | dev_info(&dev->udev->dev, |
756 | "address %d, EndpointAddress 0x%02x use " | |
757 | "DMA FIFO\n", usb_pipedevice(urb->pipe), | |
758 | info->dir_in ? | |
759 | USB_ENDPOINT_DIR_MASK + info->epnum | |
760 | : info->epnum); | |
5d304358 YS |
761 | |
762 | r8a66597->dma_map |= 1 << i; | |
763 | dev->dma_map |= 1 << i; | |
764 | set_pipe_reg_addr(pipe, i); | |
765 | ||
766 | cfifo_change(r8a66597, 0); | |
767 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, | |
768 | MBW | CURPIPE, pipe->fifosel); | |
769 | ||
770 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
771 | pipe->info.pipenum); | |
772 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
773 | break; | |
774 | } | |
775 | } | |
9424ea29 | 776 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
5d304358 YS |
777 | } |
778 | ||
779 | /* this function must be called with interrupt disabled */ | |
780 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
781 | struct usb_host_endpoint *hep, | |
782 | struct r8a66597_pipe_info *info) | |
783 | { | |
784 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
785 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
786 | ||
787 | dbg("enable_pipe:"); | |
788 | ||
789 | pipe->info = *info; | |
790 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
791 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
792 | dev->pipe_cnt[pipe->info.pipenum]++; | |
793 | ||
794 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
795 | } | |
796 | ||
797 | /* this function must be called with interrupt disabled */ | |
798 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
799 | { | |
800 | struct r8a66597_td *td, *next; | |
801 | struct urb *urb; | |
802 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
803 | ||
804 | if (list_empty(list)) | |
805 | return; | |
806 | ||
807 | list_for_each_entry_safe(td, next, list, queue) { | |
808 | if (!td) | |
809 | continue; | |
810 | if (td->address != address) | |
811 | continue; | |
812 | ||
813 | urb = td->urb; | |
814 | list_del(&td->queue); | |
815 | kfree(td); | |
816 | ||
817 | if (urb) { | |
e9df41c5 AS |
818 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), |
819 | urb); | |
820 | ||
5d304358 | 821 | spin_unlock(&r8a66597->lock); |
4a00027d AS |
822 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, |
823 | -ENODEV); | |
5d304358 YS |
824 | spin_lock(&r8a66597->lock); |
825 | } | |
826 | break; | |
827 | } | |
828 | } | |
829 | ||
830 | /* this function must be called with interrupt disabled */ | |
831 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
832 | struct r8a66597_device *dev) | |
833 | { | |
834 | int check_ep0 = 0; | |
835 | u16 pipenum; | |
836 | ||
837 | if (!dev) | |
838 | return; | |
839 | ||
840 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
841 | if (!dev->pipe_cnt[pipenum]) | |
842 | continue; | |
843 | ||
844 | if (!check_ep0) { | |
845 | check_ep0 = 1; | |
846 | force_dequeue(r8a66597, 0, dev->address); | |
847 | } | |
848 | ||
849 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
850 | dev->pipe_cnt[pipenum] = 0; | |
851 | force_dequeue(r8a66597, pipenum, dev->address); | |
852 | } | |
853 | ||
854 | dbg("disable_pipe"); | |
855 | ||
856 | r8a66597->dma_map &= ~(dev->dma_map); | |
857 | dev->dma_map = 0; | |
858 | } | |
859 | ||
397f519a YS |
860 | static u16 get_interval(struct urb *urb, __u8 interval) |
861 | { | |
862 | u16 time = 1; | |
863 | int i; | |
864 | ||
865 | if (urb->dev->speed == USB_SPEED_HIGH) { | |
866 | if (interval > IITV) | |
867 | time = IITV; | |
868 | else | |
869 | time = interval ? interval - 1 : 0; | |
870 | } else { | |
871 | if (interval > 128) { | |
872 | time = IITV; | |
873 | } else { | |
874 | /* calculate the nearest value for PIPEPERI */ | |
875 | for (i = 0; i < 7; i++) { | |
876 | if ((1 << i) < interval && | |
877 | (1 << (i + 1) > interval)) | |
878 | time = 1 << i; | |
879 | } | |
880 | } | |
881 | } | |
882 | ||
883 | return time; | |
884 | } | |
885 | ||
6d879107 YS |
886 | static unsigned long get_timer_interval(struct urb *urb, __u8 interval) |
887 | { | |
888 | __u8 i; | |
889 | unsigned long time = 1; | |
890 | ||
891 | if (usb_pipeisoc(urb->pipe)) | |
892 | return 0; | |
893 | ||
894 | if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) { | |
895 | for (i = 0; i < (interval - 1); i++) | |
896 | time *= 2; | |
897 | time = time * 125 / 1000; /* uSOF -> msec */ | |
898 | } else { | |
899 | time = interval; | |
900 | } | |
901 | ||
902 | return time; | |
903 | } | |
904 | ||
5d304358 YS |
905 | /* this function must be called with interrupt disabled */ |
906 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
907 | struct usb_host_endpoint *hep, | |
908 | struct usb_endpoint_descriptor *ep) | |
909 | { | |
910 | struct r8a66597_pipe_info info; | |
911 | ||
912 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
913 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
2e0fe709 | 914 | info.epnum = usb_endpoint_num(ep); |
05eac910 | 915 | info.maxpacket = le16_to_cpu(ep->wMaxPacketSize); |
2e0fe709 | 916 | info.type = get_r8a66597_type(usb_endpoint_type(ep)); |
5d304358 YS |
917 | info.bufnum = get_bufnum(info.pipenum); |
918 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
6d879107 YS |
919 | if (info.type == R8A66597_BULK) { |
920 | info.interval = 0; | |
921 | info.timer_interval = 0; | |
922 | } else { | |
397f519a | 923 | info.interval = get_interval(urb, ep->bInterval); |
6d879107 YS |
924 | info.timer_interval = get_timer_interval(urb, ep->bInterval); |
925 | } | |
2e0fe709 | 926 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
927 | info.dir_in = 1; |
928 | else | |
929 | info.dir_in = 0; | |
930 | ||
931 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
932 | } | |
933 | ||
934 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
935 | { | |
936 | struct r8a66597_device *dev; | |
937 | ||
938 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
939 | dev->state = USB_STATE_CONFIGURED; | |
940 | } | |
941 | ||
942 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
943 | u16 pipenum) | |
944 | { | |
945 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
946 | enable_irq_empty(r8a66597, pipenum); | |
947 | else | |
948 | enable_irq_ready(r8a66597, pipenum); | |
949 | ||
950 | if (!usb_pipeisoc(urb->pipe)) | |
951 | enable_irq_nrdy(r8a66597, pipenum); | |
952 | } | |
953 | ||
954 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
955 | { | |
956 | disable_irq_ready(r8a66597, pipenum); | |
957 | disable_irq_nrdy(r8a66597, pipenum); | |
958 | } | |
959 | ||
54d0be9e YS |
960 | static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) |
961 | { | |
962 | mod_timer(&r8a66597->rh_timer, | |
963 | jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); | |
964 | } | |
965 | ||
966 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, | |
967 | int connect) | |
968 | { | |
969 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
970 | ||
971 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
972 | rh->scount = R8A66597_MAX_SAMPLING; | |
973 | if (connect) | |
974 | rh->port |= 1 << USB_PORT_FEAT_CONNECTION; | |
975 | else | |
976 | rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
977 | rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION; | |
978 | ||
979 | r8a66597_root_hub_start_polling(r8a66597); | |
980 | } | |
981 | ||
5d304358 | 982 | /* this function must be called with interrupt disabled */ |
29fab0cd YS |
983 | static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, |
984 | u16 syssts) | |
5d304358 | 985 | { |
29fab0cd | 986 | if (syssts == SE0) { |
54d0be9e | 987 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); |
29fab0cd YS |
988 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); |
989 | return; | |
990 | } | |
991 | ||
992 | if (syssts == FS_JSTS) | |
993 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
994 | else if (syssts == LS_JSTS) | |
995 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
996 | ||
e294531d | 997 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
5d304358 | 998 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); |
e1e609be YS |
999 | |
1000 | if (r8a66597->bus_suspended) | |
1001 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
5d304358 YS |
1002 | } |
1003 | ||
1004 | /* this function must be called with interrupt disabled */ | |
1005 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
1006 | { | |
1007 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
1008 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1009 | ||
1010 | if (speed == HSMODE) | |
1011 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
1012 | else if (speed == LSMODE) | |
1013 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
1014 | ||
1015 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
1016 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
1017 | } | |
1018 | ||
1019 | /* this function must be called with interrupt disabled */ | |
1020 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
1021 | { | |
1022 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
1023 | ||
5d304358 YS |
1024 | disable_r8a66597_pipe_all(r8a66597, dev); |
1025 | free_usb_address(r8a66597, dev); | |
1026 | ||
54d0be9e | 1027 | start_root_hub_sampling(r8a66597, port, 0); |
5d304358 YS |
1028 | } |
1029 | ||
1030 | /* this function must be called with interrupt disabled */ | |
1031 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
1032 | struct r8a66597_td *td) | |
1033 | { | |
1034 | int i; | |
fd05e720 | 1035 | __le16 *p = (__le16 *)td->urb->setup_packet; |
5d304358 YS |
1036 | unsigned long setup_addr = USBREQ; |
1037 | ||
1038 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
1039 | DCPMAXP); | |
e294531d | 1040 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
1041 | |
1042 | for (i = 0; i < 4; i++) { | |
fd05e720 | 1043 | r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); |
5d304358 YS |
1044 | setup_addr += 2; |
1045 | } | |
1046 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
1047 | } | |
1048 | ||
1049 | /* this function must be called with interrupt disabled */ | |
1050 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
1051 | struct r8a66597_td *td) | |
1052 | { | |
1053 | struct urb *urb = td->urb; | |
1054 | ||
1055 | if (usb_pipecontrol(urb->pipe)) { | |
1056 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1057 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1058 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1059 | if (urb->actual_length == 0) { | |
1060 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1061 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1062 | } | |
1063 | pipe_irq_disable(r8a66597, td->pipenum); | |
1064 | pipe_start(r8a66597, td->pipe); | |
1065 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1066 | } else { | |
1067 | if (urb->actual_length == 0) { | |
1068 | pipe_irq_disable(r8a66597, td->pipenum); | |
1069 | pipe_setting(r8a66597, td); | |
1070 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 1071 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1072 | |
1073 | if (td->pipe->pipetre) { | |
1074 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 1075 | td->pipe->pipetre); |
5d304358 | 1076 | r8a66597_write(r8a66597, |
dfa5ec79 JL |
1077 | DIV_ROUND_UP |
1078 | (urb->transfer_buffer_length, | |
1079 | td->maxpacket), | |
e294531d | 1080 | td->pipe->pipetrn); |
5d304358 | 1081 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 1082 | td->pipe->pipetre); |
5d304358 YS |
1083 | } |
1084 | ||
1085 | pipe_start(r8a66597, td->pipe); | |
1086 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1087 | } | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | /* this function must be called with interrupt disabled */ | |
1092 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
1093 | struct r8a66597_td *td) | |
1094 | { | |
1095 | u16 tmp; | |
1096 | struct urb *urb = td->urb; | |
1097 | ||
1098 | if (usb_pipecontrol(urb->pipe)) { | |
1099 | pipe_stop(r8a66597, td->pipe); | |
1100 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1101 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1102 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1103 | if (urb->actual_length == 0) { | |
1104 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1105 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1106 | } | |
1107 | } else { | |
1108 | if (urb->actual_length == 0) | |
1109 | pipe_setting(r8a66597, td); | |
1110 | if (td->pipe->pipetre) | |
1111 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
1112 | } | |
e294531d | 1113 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1114 | |
1115 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1116 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1117 | if (unlikely((tmp & FRDY) == 0)) | |
1118 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1119 | else | |
1120 | packet_write(r8a66597, td->pipenum); | |
1121 | pipe_start(r8a66597, td->pipe); | |
1122 | } | |
1123 | ||
1124 | /* this function must be called with interrupt disabled */ | |
1125 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1126 | struct r8a66597_td *td) | |
1127 | { | |
1128 | struct urb *urb = td->urb; | |
1129 | ||
1130 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1131 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1132 | |
1133 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1134 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1135 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1136 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d | 1137 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
9424ea29 | 1138 | r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); |
5d304358 YS |
1139 | enable_irq_empty(r8a66597, 0); |
1140 | } else { | |
1141 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1142 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1143 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1144 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1145 | enable_irq_ready(r8a66597, 0); |
1146 | } | |
1147 | enable_irq_nrdy(r8a66597, 0); | |
1148 | pipe_start(r8a66597, td->pipe); | |
1149 | } | |
1150 | ||
e3a09051 YS |
1151 | static int is_set_address(unsigned char *setup_packet) |
1152 | { | |
1153 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1154 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1155 | return 1; | |
1156 | else | |
1157 | return 0; | |
1158 | } | |
1159 | ||
5d304358 YS |
1160 | /* this function must be called with interrupt disabled */ |
1161 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1162 | { | |
1163 | BUG_ON(!td); | |
1164 | ||
1165 | switch (td->type) { | |
1166 | case USB_PID_SETUP: | |
e3a09051 | 1167 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1168 | td->set_address = 1; |
1169 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1170 | td->urb); | |
1171 | if (td->urb->setup_packet[2] == 0) | |
1172 | return -EPIPE; | |
1173 | } | |
1174 | prepare_setup_packet(r8a66597, td); | |
1175 | break; | |
1176 | case USB_PID_IN: | |
1177 | prepare_packet_read(r8a66597, td); | |
1178 | break; | |
1179 | case USB_PID_OUT: | |
1180 | prepare_packet_write(r8a66597, td); | |
1181 | break; | |
1182 | case USB_PID_ACK: | |
1183 | prepare_status_packet(r8a66597, td); | |
1184 | break; | |
1185 | default: | |
802f389a | 1186 | printk(KERN_ERR "r8a66597: invalid type.\n"); |
5d304358 YS |
1187 | break; |
1188 | } | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1194 | { | |
1195 | if (usb_pipeisoc(urb->pipe)) { | |
1196 | if (urb->number_of_packets == td->iso_cnt) | |
1197 | return 1; | |
1198 | } | |
1199 | ||
1200 | /* control or bulk or interrupt */ | |
1201 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1202 | (td->short_packet) || (td->zero_packet)) | |
1203 | return 1; | |
1204 | ||
1205 | return 0; | |
1206 | } | |
1207 | ||
1208 | /* this function must be called with interrupt disabled */ | |
1209 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1210 | { | |
1211 | unsigned long time; | |
1212 | ||
1213 | BUG_ON(!td); | |
1214 | ||
1215 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1216 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1217 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1218 | switch (usb_pipetype(td->urb->pipe)) { | |
1219 | case PIPE_INTERRUPT: | |
1220 | case PIPE_ISOCHRONOUS: | |
1221 | time = 30; | |
1222 | break; | |
1223 | default: | |
1224 | time = 300; | |
1225 | break; | |
1226 | } | |
1227 | ||
1228 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1229 | jiffies + msecs_to_jiffies(time)); | |
1230 | } | |
1231 | } | |
1232 | ||
1233 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1234 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1235 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1236 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1237 | { |
1238 | int restart = 0; | |
1239 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1240 | ||
1241 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1242 | ||
1243 | if (likely(td)) { | |
888fda47 | 1244 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1245 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1246 | ||
1247 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1248 | list_del(&td->queue); | |
1249 | kfree(td); | |
1250 | } | |
1251 | ||
1252 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1253 | restart = 1; | |
1254 | ||
1255 | if (likely(urb)) { | |
1256 | if (usb_pipeisoc(urb->pipe)) | |
1257 | urb->start_frame = r8a66597_get_frame(hcd); | |
1258 | ||
e9df41c5 | 1259 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); |
5d304358 | 1260 | spin_unlock(&r8a66597->lock); |
4a00027d | 1261 | usb_hcd_giveback_urb(hcd, urb, status); |
5d304358 YS |
1262 | spin_lock(&r8a66597->lock); |
1263 | } | |
1264 | ||
1265 | if (restart) { | |
1266 | td = r8a66597_get_td(r8a66597, pipenum); | |
1267 | if (unlikely(!td)) | |
1268 | return; | |
1269 | ||
1270 | start_transfer(r8a66597, td); | |
1271 | set_td_timer(r8a66597, td); | |
1272 | } | |
1273 | } | |
1274 | ||
5d304358 YS |
1275 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1276 | { | |
1277 | u16 tmp; | |
1278 | int rcv_len, bufsize, urb_len, size; | |
1279 | u16 *buf; | |
1280 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1281 | struct urb *urb; | |
1282 | int finish = 0; | |
dfd1e537 | 1283 | int status = 0; |
5d304358 YS |
1284 | |
1285 | if (unlikely(!td)) | |
1286 | return; | |
1287 | urb = td->urb; | |
1288 | ||
1289 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1290 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1291 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1292 | pipe_stop(r8a66597, td->pipe); |
1293 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1294 | printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); |
888fda47 | 1295 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1296 | return; |
1297 | } | |
1298 | ||
1299 | /* prepare parameters */ | |
1300 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1301 | if (usb_pipeisoc(urb->pipe)) { |
1302 | buf = (u16 *)(urb->transfer_buffer + | |
1303 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1304 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1305 | } else { | |
1306 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1307 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1308 | } | |
dfd1e537 AS |
1309 | bufsize = min(urb_len, (int) td->maxpacket); |
1310 | if (rcv_len <= bufsize) { | |
1311 | size = rcv_len; | |
1312 | } else { | |
1313 | size = bufsize; | |
1314 | status = -EOVERFLOW; | |
1315 | finish = 1; | |
1316 | } | |
5d304358 YS |
1317 | |
1318 | /* update parameters */ | |
1319 | urb->actual_length += size; | |
1320 | if (rcv_len == 0) | |
1321 | td->zero_packet = 1; | |
dfd1e537 | 1322 | if (rcv_len < bufsize) { |
5d304358 | 1323 | td->short_packet = 1; |
5d304358 YS |
1324 | } |
1325 | if (usb_pipeisoc(urb->pipe)) { | |
1326 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1327 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1328 | td->iso_cnt++; |
dfd1e537 | 1329 | finish = 0; |
5d304358 YS |
1330 | } |
1331 | ||
1332 | /* check transfer finish */ | |
b0d9efba | 1333 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1334 | pipe_stop(r8a66597, td->pipe); |
1335 | pipe_irq_disable(r8a66597, pipenum); | |
1336 | finish = 1; | |
1337 | } | |
1338 | ||
1339 | /* read fifo */ | |
1340 | if (urb->transfer_buffer) { | |
1341 | if (size == 0) | |
1342 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1343 | else | |
1344 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1345 | buf, size); | |
1346 | } | |
1347 | ||
888fda47 AS |
1348 | if (finish && pipenum != 0) |
1349 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1350 | } |
1351 | ||
1352 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1353 | { | |
1354 | u16 tmp; | |
1355 | int bufsize, size; | |
1356 | u16 *buf; | |
1357 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1358 | struct urb *urb; | |
1359 | ||
1360 | if (unlikely(!td)) | |
1361 | return; | |
1362 | urb = td->urb; | |
1363 | ||
1364 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1365 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1366 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1367 | pipe_stop(r8a66597, td->pipe); |
1368 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1369 | printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); |
888fda47 | 1370 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1371 | return; |
1372 | } | |
1373 | ||
1374 | /* prepare parameters */ | |
1375 | bufsize = td->maxpacket; | |
1376 | if (usb_pipeisoc(urb->pipe)) { | |
1377 | buf = (u16 *)(urb->transfer_buffer + | |
1378 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1379 | size = min(bufsize, | |
1380 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1381 | } else { | |
1382 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
16e2e5f6 | 1383 | size = min_t(u32, bufsize, |
5d304358 YS |
1384 | urb->transfer_buffer_length - urb->actual_length); |
1385 | } | |
1386 | ||
1387 | /* write fifo */ | |
1388 | if (pipenum > 0) | |
e294531d | 1389 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 YS |
1390 | if (urb->transfer_buffer) { |
1391 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1392 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1393 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1394 | } | |
1395 | ||
1396 | /* update parameters */ | |
1397 | urb->actual_length += size; | |
1398 | if (usb_pipeisoc(urb->pipe)) { | |
1399 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1400 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1401 | td->iso_cnt++; | |
1402 | } | |
1403 | ||
1404 | /* check transfer finish */ | |
1405 | if (check_transfer_finish(td, urb)) { | |
1406 | disable_irq_ready(r8a66597, pipenum); | |
1407 | enable_irq_empty(r8a66597, pipenum); | |
1408 | if (!usb_pipeisoc(urb->pipe)) | |
1409 | enable_irq_nrdy(r8a66597, pipenum); | |
1410 | } else | |
1411 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1412 | } | |
1413 | ||
1414 | ||
888fda47 | 1415 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1416 | { |
1417 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1418 | struct urb *urb; | |
1419 | u8 finish = 0; | |
1420 | ||
1421 | if (unlikely(!td)) | |
1422 | return; | |
1423 | urb = td->urb; | |
1424 | ||
1425 | switch (td->type) { | |
1426 | case USB_PID_IN: | |
1427 | case USB_PID_OUT: | |
5d304358 YS |
1428 | if (check_transfer_finish(td, urb)) |
1429 | td->type = USB_PID_ACK; | |
1430 | break; | |
1431 | case USB_PID_SETUP: | |
eb231054 | 1432 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1433 | td->type = USB_PID_ACK; |
eb231054 | 1434 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1435 | td->type = USB_PID_OUT; |
1436 | else | |
1437 | td->type = USB_PID_IN; | |
1438 | break; | |
1439 | case USB_PID_ACK: | |
1440 | finish = 1; | |
5d304358 YS |
1441 | break; |
1442 | } | |
1443 | ||
888fda47 AS |
1444 | if (finish || status != 0 || urb->unlinked) |
1445 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1446 | else |
1447 | start_transfer(r8a66597, td); | |
1448 | } | |
1449 | ||
888fda47 | 1450 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1451 | { |
1452 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1453 | ||
888fda47 | 1454 | if (td) { |
5d304358 YS |
1455 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1456 | ||
1457 | if (pid == PID_NAK) | |
888fda47 | 1458 | return -ECONNRESET; |
5d304358 | 1459 | else |
888fda47 | 1460 | return -EPIPE; |
5d304358 | 1461 | } |
888fda47 | 1462 | return 0; |
5d304358 YS |
1463 | } |
1464 | ||
1465 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1466 | { | |
1467 | u16 check; | |
1468 | u16 pipenum; | |
1469 | u16 mask; | |
1470 | struct r8a66597_td *td; | |
1471 | ||
1472 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1473 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1474 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1475 | if (mask & BRDY0) { |
1476 | td = r8a66597_get_td(r8a66597, 0); | |
1477 | if (td && td->type == USB_PID_IN) | |
1478 | packet_read(r8a66597, 0); | |
1479 | else | |
1480 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1481 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1482 | } |
1483 | ||
1484 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1485 | check = 1 << pipenum; | |
1486 | if (mask & check) { | |
1487 | td = r8a66597_get_td(r8a66597, pipenum); | |
1488 | if (unlikely(!td)) | |
1489 | continue; | |
1490 | ||
1491 | if (td->type == USB_PID_IN) | |
1492 | packet_read(r8a66597, pipenum); | |
1493 | else if (td->type == USB_PID_OUT) | |
1494 | packet_write(r8a66597, pipenum); | |
1495 | } | |
1496 | } | |
1497 | } | |
1498 | ||
1499 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1500 | { | |
1501 | u16 tmp; | |
1502 | u16 check; | |
1503 | u16 pipenum; | |
1504 | u16 mask; | |
1505 | struct r8a66597_td *td; | |
1506 | ||
1507 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1508 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1509 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1510 | if (mask & BEMP0) { |
1511 | cfifo_change(r8a66597, 0); | |
1512 | td = r8a66597_get_td(r8a66597, 0); | |
1513 | if (td && td->type != USB_PID_OUT) | |
1514 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1515 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1516 | } |
1517 | ||
1518 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1519 | check = 1 << pipenum; | |
1520 | if (mask & check) { | |
1521 | struct r8a66597_td *td; | |
1522 | td = r8a66597_get_td(r8a66597, pipenum); | |
1523 | if (unlikely(!td)) | |
1524 | continue; | |
1525 | ||
1526 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1527 | if ((tmp & INBUFM) == 0) { | |
1528 | disable_irq_empty(r8a66597, pipenum); | |
1529 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1530 | finish_request(r8a66597, td, pipenum, td->urb, |
1531 | 0); | |
5d304358 YS |
1532 | } |
1533 | } | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1538 | { | |
1539 | u16 check; | |
1540 | u16 pipenum; | |
1541 | u16 mask; | |
888fda47 | 1542 | int status; |
5d304358 YS |
1543 | |
1544 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1545 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1546 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1547 | if (mask & NRDY0) { |
1548 | cfifo_change(r8a66597, 0); | |
888fda47 | 1549 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1550 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1551 | check_next_phase(r8a66597, status); |
5d304358 YS |
1552 | } |
1553 | ||
1554 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1555 | check = 1 << pipenum; | |
1556 | if (mask & check) { | |
1557 | struct r8a66597_td *td; | |
1558 | td = r8a66597_get_td(r8a66597, pipenum); | |
1559 | if (unlikely(!td)) | |
1560 | continue; | |
1561 | ||
888fda47 | 1562 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1563 | pipe_irq_disable(r8a66597, pipenum); |
1564 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1565 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1566 | } |
1567 | } | |
1568 | } | |
1569 | ||
5d304358 YS |
1570 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) |
1571 | { | |
1572 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1573 | u16 intsts0, intsts1, intsts2; | |
1574 | u16 intenb0, intenb1, intenb2; | |
1575 | u16 mask0, mask1, mask2; | |
888fda47 | 1576 | int status; |
5d304358 YS |
1577 | |
1578 | spin_lock(&r8a66597->lock); | |
1579 | ||
1580 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1581 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1582 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1583 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1584 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1585 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1586 | ||
1587 | mask2 = intsts2 & intenb2; | |
1588 | mask1 = intsts1 & intenb1; | |
1589 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1590 | if (mask2) { | |
1591 | if (mask2 & ATTCH) { | |
e294531d | 1592 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1593 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1594 | ||
1595 | /* start usb bus sampling */ | |
54d0be9e | 1596 | start_root_hub_sampling(r8a66597, 1, 1); |
5d304358 YS |
1597 | } |
1598 | if (mask2 & DTCH) { | |
e294531d | 1599 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1600 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1601 | r8a66597_usb_disconnect(r8a66597, 1); | |
1602 | } | |
e1e609be YS |
1603 | if (mask2 & BCHG) { |
1604 | r8a66597_write(r8a66597, ~BCHG, INTSTS2); | |
1605 | r8a66597_bclr(r8a66597, BCHGE, INTENB2); | |
1606 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1607 | } | |
5d304358 YS |
1608 | } |
1609 | ||
1610 | if (mask1) { | |
1611 | if (mask1 & ATTCH) { | |
e294531d | 1612 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1613 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1614 | ||
1615 | /* start usb bus sampling */ | |
54d0be9e | 1616 | start_root_hub_sampling(r8a66597, 0, 1); |
5d304358 YS |
1617 | } |
1618 | if (mask1 & DTCH) { | |
e294531d | 1619 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1620 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1621 | r8a66597_usb_disconnect(r8a66597, 0); | |
1622 | } | |
e1e609be YS |
1623 | if (mask1 & BCHG) { |
1624 | r8a66597_write(r8a66597, ~BCHG, INTSTS1); | |
1625 | r8a66597_bclr(r8a66597, BCHGE, INTENB1); | |
1626 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1627 | } | |
1628 | ||
5d304358 | 1629 | if (mask1 & SIGN) { |
e294531d | 1630 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1631 | status = get_urb_error(r8a66597, 0); |
1632 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1633 | } |
1634 | if (mask1 & SACK) { | |
e294531d | 1635 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1636 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1637 | } |
1638 | } | |
1639 | if (mask0) { | |
1640 | if (mask0 & BRDY) | |
1641 | irq_pipe_ready(r8a66597); | |
1642 | if (mask0 & BEMP) | |
1643 | irq_pipe_empty(r8a66597); | |
1644 | if (mask0 & NRDY) | |
1645 | irq_pipe_nrdy(r8a66597); | |
1646 | } | |
1647 | ||
1648 | spin_unlock(&r8a66597->lock); | |
1649 | return IRQ_HANDLED; | |
1650 | } | |
1651 | ||
1652 | /* this function must be called with interrupt disabled */ | |
1653 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1654 | { | |
1655 | u16 tmp; | |
1656 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1657 | ||
1658 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1659 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1660 | ||
1661 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1662 | if ((tmp & USBRST) == USBRST) { | |
1663 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1664 | dvstctr_reg); | |
29fab0cd | 1665 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1666 | } else |
1667 | r8a66597_usb_connect(r8a66597, port); | |
1668 | } | |
1669 | ||
29fab0cd YS |
1670 | if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) { |
1671 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); | |
1672 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
1673 | } | |
1674 | ||
5d304358 YS |
1675 | if (rh->scount > 0) { |
1676 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1677 | if (tmp == rh->old_syssts) { | |
1678 | rh->scount--; | |
29fab0cd YS |
1679 | if (rh->scount == 0) |
1680 | r8a66597_check_syssts(r8a66597, port, tmp); | |
1681 | else | |
1682 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1683 | } else { |
1684 | rh->scount = R8A66597_MAX_SAMPLING; | |
1685 | rh->old_syssts = tmp; | |
29fab0cd | 1686 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1687 | } |
1688 | } | |
1689 | } | |
1690 | ||
6d879107 YS |
1691 | static void r8a66597_interval_timer(unsigned long _r8a66597) |
1692 | { | |
1693 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1694 | unsigned long flags; | |
1695 | u16 pipenum; | |
1696 | struct r8a66597_td *td; | |
1697 | ||
1698 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1699 | ||
1700 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1701 | if (!(r8a66597->interval_map & (1 << pipenum))) | |
1702 | continue; | |
1703 | if (timer_pending(&r8a66597->interval_timer[pipenum])) | |
1704 | continue; | |
1705 | ||
1706 | td = r8a66597_get_td(r8a66597, pipenum); | |
1707 | if (td) | |
1708 | start_transfer(r8a66597, td); | |
1709 | } | |
1710 | ||
1711 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1712 | } | |
1713 | ||
5d304358 YS |
1714 | static void r8a66597_td_timer(unsigned long _r8a66597) |
1715 | { | |
1716 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1717 | unsigned long flags; | |
1718 | u16 pipenum; | |
1719 | struct r8a66597_td *td, *new_td = NULL; | |
1720 | struct r8a66597_pipe *pipe; | |
1721 | ||
1722 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1723 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1724 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1725 | continue; | |
1726 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1727 | continue; | |
1728 | ||
1729 | td = r8a66597_get_td(r8a66597, pipenum); | |
1730 | if (!td) { | |
1731 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1732 | continue; | |
1733 | } | |
1734 | ||
1735 | if (td->urb->actual_length) { | |
1736 | set_td_timer(r8a66597, td); | |
1737 | break; | |
1738 | } | |
1739 | ||
1740 | pipe = td->pipe; | |
1741 | pipe_stop(r8a66597, pipe); | |
1742 | ||
1743 | new_td = td; | |
1744 | do { | |
1745 | list_move_tail(&new_td->queue, | |
1746 | &r8a66597->pipe_queue[pipenum]); | |
1747 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1748 | if (!new_td) { | |
1749 | new_td = td; | |
1750 | break; | |
1751 | } | |
1752 | } while (td != new_td && td->address == new_td->address); | |
1753 | ||
1754 | start_transfer(r8a66597, new_td); | |
1755 | ||
1756 | if (td == new_td) | |
1757 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1758 | else | |
1759 | set_td_timer(r8a66597, new_td); | |
1760 | break; | |
1761 | } | |
1762 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1763 | } | |
1764 | ||
1765 | static void r8a66597_timer(unsigned long _r8a66597) | |
1766 | { | |
1767 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1768 | unsigned long flags; | |
58639646 | 1769 | int port; |
5d304358 YS |
1770 | |
1771 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1772 | ||
58639646 YS |
1773 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
1774 | r8a66597_root_hub_control(r8a66597, port); | |
5d304358 YS |
1775 | |
1776 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1777 | } | |
1778 | ||
1779 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1780 | { | |
1781 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1782 | ||
1783 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1784 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1785 | return 1; | |
1786 | else | |
1787 | return 0; | |
1788 | } | |
1789 | ||
1790 | static int r8a66597_start(struct usb_hcd *hcd) | |
1791 | { | |
1792 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1793 | |
1794 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1795 | return enable_controller(r8a66597); |
5d304358 YS |
1796 | } |
1797 | ||
1798 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1799 | { | |
1800 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1801 | ||
1802 | disable_controller(r8a66597); | |
1803 | } | |
1804 | ||
1805 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1806 | { | |
1807 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1808 | u16 root_port, hub_port; | |
1809 | ||
1810 | if (usb_address == 0) { | |
1811 | get_port_number(urb->dev->devpath, | |
1812 | &root_port, &hub_port); | |
1813 | set_devadd_reg(r8a66597, 0, | |
1814 | get_r8a66597_usb_speed(urb->dev->speed), | |
1815 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1816 | hub_port, root_port); | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1821 | struct urb *urb, | |
e294531d | 1822 | struct usb_host_endpoint *hep) |
5d304358 YS |
1823 | { |
1824 | struct r8a66597_td *td; | |
1825 | u16 pipenum; | |
1826 | ||
e294531d | 1827 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1828 | if (td == NULL) |
1829 | return NULL; | |
1830 | ||
1831 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1832 | td->pipenum = pipenum; | |
1833 | td->pipe = hep->hcpriv; | |
1834 | td->urb = urb; | |
1835 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1836 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1837 | !usb_pipein(urb->pipe)); | |
1838 | if (usb_pipecontrol(urb->pipe)) | |
1839 | td->type = USB_PID_SETUP; | |
1840 | else if (usb_pipein(urb->pipe)) | |
1841 | td->type = USB_PID_IN; | |
1842 | else | |
1843 | td->type = USB_PID_OUT; | |
1844 | INIT_LIST_HEAD(&td->queue); | |
1845 | ||
1846 | return td; | |
1847 | } | |
1848 | ||
1849 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1850 | struct urb *urb, |
1851 | gfp_t mem_flags) | |
1852 | { | |
e9df41c5 | 1853 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1854 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1855 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1856 | int ret, request = 0; |
5d304358 YS |
1857 | unsigned long flags; |
1858 | ||
1859 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1860 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1861 | ret = -ENODEV; | |
e9df41c5 | 1862 | goto error_not_linked; |
5d304358 YS |
1863 | } |
1864 | ||
e9df41c5 AS |
1865 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1866 | if (ret) | |
1867 | goto error_not_linked; | |
1868 | ||
5d304358 | 1869 | if (!hep->hcpriv) { |
e294531d YS |
1870 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1871 | GFP_ATOMIC); | |
5d304358 YS |
1872 | if (!hep->hcpriv) { |
1873 | ret = -ENOMEM; | |
1874 | goto error; | |
1875 | } | |
1876 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1877 | if (usb_pipeendpoint(urb->pipe)) | |
1878 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1879 | } | |
1880 | ||
1881 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1882 | init_pipe_config(r8a66597, urb); | |
1883 | ||
1884 | set_address_zero(r8a66597, urb); | |
e294531d | 1885 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1886 | if (td == NULL) { |
1887 | ret = -ENOMEM; | |
1888 | goto error; | |
1889 | } | |
1890 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1891 | request = 1; | |
1892 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1893 | urb->hcpriv = td; |
5d304358 YS |
1894 | |
1895 | if (request) { | |
6d879107 YS |
1896 | if (td->pipe->info.timer_interval) { |
1897 | r8a66597->interval_map |= 1 << td->pipenum; | |
1898 | mod_timer(&r8a66597->interval_timer[td->pipenum], | |
1899 | jiffies + msecs_to_jiffies( | |
1900 | td->pipe->info.timer_interval)); | |
1901 | } else { | |
1902 | ret = start_transfer(r8a66597, td); | |
1903 | if (ret < 0) { | |
1904 | list_del(&td->queue); | |
1905 | kfree(td); | |
1906 | } | |
5d304358 YS |
1907 | } |
1908 | } else | |
1909 | set_td_timer(r8a66597, td); | |
1910 | ||
1911 | error: | |
e9df41c5 AS |
1912 | if (ret) |
1913 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1914 | error_not_linked: | |
5d304358 YS |
1915 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1916 | return ret; | |
1917 | } | |
1918 | ||
e9df41c5 AS |
1919 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1920 | int status) | |
5d304358 YS |
1921 | { |
1922 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1923 | struct r8a66597_td *td; | |
1924 | unsigned long flags; | |
e9df41c5 | 1925 | int rc; |
5d304358 YS |
1926 | |
1927 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1928 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1929 | if (rc) | |
1930 | goto done; | |
1931 | ||
5d304358 YS |
1932 | if (urb->hcpriv) { |
1933 | td = urb->hcpriv; | |
1934 | pipe_stop(r8a66597, td->pipe); | |
1935 | pipe_irq_disable(r8a66597, td->pipenum); | |
1936 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1937 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1938 | } |
e9df41c5 | 1939 | done: |
5d304358 | 1940 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1941 | return rc; |
5d304358 YS |
1942 | } |
1943 | ||
1944 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1945 | struct usb_host_endpoint *hep) | |
1946 | { | |
1947 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1948 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1949 | struct r8a66597_td *td; | |
1950 | struct urb *urb = NULL; | |
1951 | u16 pipenum; | |
1952 | unsigned long flags; | |
1953 | ||
1954 | if (pipe == NULL) | |
1955 | return; | |
1956 | pipenum = pipe->info.pipenum; | |
1957 | ||
1958 | if (pipenum == 0) { | |
1959 | kfree(hep->hcpriv); | |
1960 | hep->hcpriv = NULL; | |
1961 | return; | |
1962 | } | |
1963 | ||
1964 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1965 | pipe_stop(r8a66597, pipe); | |
1966 | pipe_irq_disable(r8a66597, pipenum); | |
1967 | disable_irq_empty(r8a66597, pipenum); | |
1968 | td = r8a66597_get_td(r8a66597, pipenum); | |
1969 | if (td) | |
1970 | urb = td->urb; | |
888fda47 | 1971 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
1972 | kfree(hep->hcpriv); |
1973 | hep->hcpriv = NULL; | |
1974 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1975 | } | |
1976 | ||
1977 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
1978 | { | |
1979 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1980 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
1981 | } | |
1982 | ||
1983 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
1984 | { | |
1985 | int chix; | |
1986 | ||
1987 | if (udev->state == USB_STATE_CONFIGURED && | |
1988 | udev->parent && udev->parent->devnum > 1 && | |
1989 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
1990 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
1991 | ||
1992 | for (chix = 0; chix < udev->maxchild; chix++) { | |
1993 | struct usb_device *childdev = udev->children[chix]; | |
1994 | ||
1995 | if (childdev) | |
1996 | collect_usb_address_map(childdev, map); | |
1997 | } | |
1998 | } | |
1999 | ||
2000 | /* this function must be called with interrupt disabled */ | |
2001 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
2002 | int addr) | |
2003 | { | |
2004 | struct r8a66597_device *dev; | |
2005 | struct list_head *list = &r8a66597->child_device; | |
2006 | ||
2007 | list_for_each_entry(dev, list, device_list) { | |
2008 | if (!dev) | |
2009 | continue; | |
2010 | if (dev->usb_address != addr) | |
2011 | continue; | |
2012 | ||
2013 | return dev; | |
2014 | } | |
2015 | ||
802f389a | 2016 | printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); |
5d304358 YS |
2017 | return NULL; |
2018 | } | |
2019 | ||
2020 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
2021 | struct usb_device *root_hub, | |
2022 | unsigned long *map) | |
2023 | { | |
2024 | int i, j, addr; | |
2025 | unsigned long diff; | |
2026 | unsigned long flags; | |
2027 | ||
2028 | for (i = 0; i < 4; i++) { | |
2029 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
2030 | if (!diff) | |
2031 | continue; | |
2032 | ||
2033 | for (j = 0; j < 32; j++) { | |
2034 | if (!(diff & (1 << j))) | |
2035 | continue; | |
2036 | ||
2037 | addr = i * 32 + j; | |
2038 | if (map[i] & (1 << j)) | |
2039 | set_child_connect_map(r8a66597, addr); | |
2040 | else { | |
2041 | struct r8a66597_device *dev; | |
2042 | ||
2043 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2044 | dev = get_r8a66597_device(r8a66597, addr); | |
2045 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2046 | free_usb_address(r8a66597, dev); | |
2047 | put_child_connect_map(r8a66597, addr); | |
2048 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2049 | } | |
2050 | } | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
2055 | struct usb_hcd *hcd) | |
2056 | { | |
2057 | struct usb_bus *bus; | |
2058 | unsigned long now_map[4]; | |
2059 | ||
2060 | memset(now_map, 0, sizeof(now_map)); | |
2061 | ||
2062 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
2063 | if (!bus->root_hub) | |
2064 | continue; | |
2065 | ||
2066 | if (bus->busnum != hcd->self.busnum) | |
2067 | continue; | |
2068 | ||
2069 | collect_usb_address_map(bus->root_hub, now_map); | |
2070 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
2071 | } | |
2072 | } | |
2073 | ||
2074 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2075 | { | |
2076 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2077 | unsigned long flags; | |
2078 | int i; | |
2079 | ||
2080 | r8a66597_check_detect_child(r8a66597, hcd); | |
2081 | ||
2082 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2083 | ||
2084 | *buf = 0; /* initialize (no change) */ | |
2085 | ||
2086 | for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) { | |
2087 | if (r8a66597->root_hub[i].port & 0xffff0000) | |
2088 | *buf |= 1 << (i + 1); | |
2089 | } | |
2090 | ||
2091 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2092 | ||
2093 | return (*buf != 0); | |
2094 | } | |
2095 | ||
2096 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
2097 | struct usb_hub_descriptor *desc) | |
2098 | { | |
2099 | desc->bDescriptorType = 0x29; | |
2100 | desc->bHubContrCurrent = 0; | |
2101 | desc->bNbrPorts = R8A66597_MAX_ROOT_HUB; | |
2102 | desc->bDescLength = 9; | |
2103 | desc->bPwrOn2PwrGood = 0; | |
2104 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
2105 | desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1; | |
2106 | desc->bitmap[1] = ~0; | |
2107 | } | |
2108 | ||
2109 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2110 | u16 wIndex, char *buf, u16 wLength) | |
2111 | { | |
2112 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2113 | int ret; | |
2114 | int port = (wIndex & 0x00FF) - 1; | |
2115 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2116 | unsigned long flags; | |
2117 | ||
2118 | ret = 0; | |
2119 | ||
2120 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2121 | switch (typeReq) { | |
2122 | case ClearHubFeature: | |
2123 | case SetHubFeature: | |
2124 | switch (wValue) { | |
2125 | case C_HUB_OVER_CURRENT: | |
2126 | case C_HUB_LOCAL_POWER: | |
2127 | break; | |
2128 | default: | |
2129 | goto error; | |
2130 | } | |
2131 | break; | |
2132 | case ClearPortFeature: | |
2133 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2134 | goto error; | |
2135 | if (wLength != 0) | |
2136 | goto error; | |
2137 | ||
2138 | switch (wValue) { | |
2139 | case USB_PORT_FEAT_ENABLE: | |
e1e609be | 2140 | rh->port &= ~(1 << USB_PORT_FEAT_POWER); |
5d304358 YS |
2141 | break; |
2142 | case USB_PORT_FEAT_SUSPEND: | |
2143 | break; | |
2144 | case USB_PORT_FEAT_POWER: | |
2145 | r8a66597_port_power(r8a66597, port, 0); | |
2146 | break; | |
2147 | case USB_PORT_FEAT_C_ENABLE: | |
2148 | case USB_PORT_FEAT_C_SUSPEND: | |
2149 | case USB_PORT_FEAT_C_CONNECTION: | |
2150 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2151 | case USB_PORT_FEAT_C_RESET: | |
2152 | break; | |
2153 | default: | |
2154 | goto error; | |
2155 | } | |
2156 | rh->port &= ~(1 << wValue); | |
2157 | break; | |
2158 | case GetHubDescriptor: | |
2159 | r8a66597_hub_descriptor(r8a66597, | |
2160 | (struct usb_hub_descriptor *)buf); | |
2161 | break; | |
2162 | case GetHubStatus: | |
2163 | *buf = 0x00; | |
2164 | break; | |
2165 | case GetPortStatus: | |
2166 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2167 | goto error; | |
fd05e720 | 2168 | *(__le32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2169 | break; |
2170 | case SetPortFeature: | |
2171 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2172 | goto error; | |
2173 | if (wLength != 0) | |
2174 | goto error; | |
2175 | ||
2176 | switch (wValue) { | |
2177 | case USB_PORT_FEAT_SUSPEND: | |
2178 | break; | |
2179 | case USB_PORT_FEAT_POWER: | |
2180 | r8a66597_port_power(r8a66597, port, 1); | |
2181 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2182 | break; | |
2183 | case USB_PORT_FEAT_RESET: { | |
2184 | struct r8a66597_device *dev = rh->dev; | |
2185 | ||
2186 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2187 | ||
2188 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2189 | free_usb_address(r8a66597, dev); | |
2190 | ||
2191 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2192 | get_dvstctr_reg(port)); | |
2193 | mod_timer(&r8a66597->rh_timer, | |
2194 | jiffies + msecs_to_jiffies(50)); | |
2195 | } | |
2196 | break; | |
2197 | default: | |
2198 | goto error; | |
2199 | } | |
2200 | rh->port |= 1 << wValue; | |
2201 | break; | |
2202 | default: | |
2203 | error: | |
2204 | ret = -EPIPE; | |
2205 | break; | |
2206 | } | |
2207 | ||
2208 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2209 | return ret; | |
2210 | } | |
2211 | ||
e1e609be YS |
2212 | #if defined(CONFIG_PM) |
2213 | static int r8a66597_bus_suspend(struct usb_hcd *hcd) | |
2214 | { | |
2215 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2216 | int port; | |
2217 | ||
2218 | dbg("%s", __func__); | |
2219 | ||
2220 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2221 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2222 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2223 | ||
2224 | if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE))) | |
2225 | continue; | |
2226 | ||
2227 | dbg("suspend port = %d", port); | |
2228 | r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */ | |
2229 | rh->port |= 1 << USB_PORT_FEAT_SUSPEND; | |
2230 | ||
2231 | if (rh->dev->udev->do_remote_wakeup) { | |
2232 | msleep(3); /* waiting last SOF */ | |
2233 | r8a66597_bset(r8a66597, RWUPE, dvstctr_reg); | |
2234 | r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port)); | |
2235 | r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port)); | |
2236 | } | |
2237 | } | |
2238 | ||
2239 | r8a66597->bus_suspended = 1; | |
2240 | ||
2241 | return 0; | |
2242 | } | |
2243 | ||
2244 | static int r8a66597_bus_resume(struct usb_hcd *hcd) | |
2245 | { | |
2246 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2247 | int port; | |
2248 | ||
2249 | dbg("%s", __func__); | |
2250 | ||
2251 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2252 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2253 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2254 | ||
2255 | if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND))) | |
2256 | continue; | |
2257 | ||
2258 | dbg("resume port = %d", port); | |
2259 | rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND); | |
2260 | rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND; | |
2261 | r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); | |
2262 | msleep(50); | |
2263 | r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); | |
2264 | } | |
2265 | ||
2266 | return 0; | |
2267 | ||
2268 | } | |
2269 | #else | |
2270 | #define r8a66597_bus_suspend NULL | |
2271 | #define r8a66597_bus_resume NULL | |
2272 | #endif | |
2273 | ||
5d304358 YS |
2274 | static struct hc_driver r8a66597_hc_driver = { |
2275 | .description = hcd_name, | |
2276 | .hcd_priv_size = sizeof(struct r8a66597), | |
2277 | .irq = r8a66597_irq, | |
2278 | ||
2279 | /* | |
2280 | * generic hardware linkage | |
2281 | */ | |
2282 | .flags = HCD_USB2, | |
2283 | ||
2284 | .start = r8a66597_start, | |
2285 | .stop = r8a66597_stop, | |
2286 | ||
2287 | /* | |
2288 | * managing i/o requests and associated device resources | |
2289 | */ | |
2290 | .urb_enqueue = r8a66597_urb_enqueue, | |
2291 | .urb_dequeue = r8a66597_urb_dequeue, | |
2292 | .endpoint_disable = r8a66597_endpoint_disable, | |
2293 | ||
2294 | /* | |
2295 | * periodic schedule support | |
2296 | */ | |
2297 | .get_frame_number = r8a66597_get_frame, | |
2298 | ||
2299 | /* | |
2300 | * root hub support | |
2301 | */ | |
2302 | .hub_status_data = r8a66597_hub_status_data, | |
2303 | .hub_control = r8a66597_hub_control, | |
e1e609be YS |
2304 | .bus_suspend = r8a66597_bus_suspend, |
2305 | .bus_resume = r8a66597_bus_resume, | |
5d304358 YS |
2306 | }; |
2307 | ||
2308 | #if defined(CONFIG_PM) | |
2309 | static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) | |
2310 | { | |
e1e609be YS |
2311 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); |
2312 | int port; | |
2313 | ||
2314 | dbg("%s", __func__); | |
2315 | ||
2316 | disable_controller(r8a66597); | |
2317 | ||
2318 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2319 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2320 | ||
2321 | rh->port = 0x00000000; | |
2322 | } | |
2323 | ||
5d304358 YS |
2324 | return 0; |
2325 | } | |
2326 | ||
2327 | static int r8a66597_resume(struct platform_device *pdev) | |
2328 | { | |
e1e609be YS |
2329 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); |
2330 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2331 | ||
2332 | dbg("%s", __func__); | |
2333 | ||
2334 | enable_controller(r8a66597); | |
2335 | usb_root_hub_lost_power(hcd->self.root_hub); | |
2336 | ||
5d304358 YS |
2337 | return 0; |
2338 | } | |
2339 | #else /* if defined(CONFIG_PM) */ | |
2340 | #define r8a66597_suspend NULL | |
2341 | #define r8a66597_resume NULL | |
2342 | #endif | |
2343 | ||
2344 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2345 | { | |
2346 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2347 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2348 | ||
2349 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2350 | usb_remove_hcd(hcd); |
ca0677a2 | 2351 | iounmap((void *)r8a66597->reg); |
765786e0 MD |
2352 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2353 | clk_put(r8a66597->clk); | |
2354 | #endif | |
5d304358 YS |
2355 | usb_put_hcd(hcd); |
2356 | return 0; | |
2357 | } | |
2358 | ||
8864bd86 | 2359 | static int __devinit r8a66597_probe(struct platform_device *pdev) |
5d304358 | 2360 | { |
765786e0 MD |
2361 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2362 | char clk_name[8]; | |
2363 | #endif | |
27140219 | 2364 | struct resource *res = NULL, *ires; |
5d304358 YS |
2365 | int irq = -1; |
2366 | void __iomem *reg = NULL; | |
2367 | struct usb_hcd *hcd = NULL; | |
2368 | struct r8a66597 *r8a66597; | |
2369 | int ret = 0; | |
2370 | int i; | |
0bf32b80 | 2371 | unsigned long irq_trigger; |
5d304358 YS |
2372 | |
2373 | if (pdev->dev.dma_mask) { | |
2374 | ret = -EINVAL; | |
802f389a | 2375 | dev_err(&pdev->dev, "dma not supported\n"); |
5d304358 YS |
2376 | goto clean_up; |
2377 | } | |
2378 | ||
0a2e5b9b | 2379 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
5d304358 YS |
2380 | if (!res) { |
2381 | ret = -ENODEV; | |
0a2e5b9b | 2382 | dev_err(&pdev->dev, "platform_get_resource error.\n"); |
5d304358 YS |
2383 | goto clean_up; |
2384 | } | |
2385 | ||
27140219 MZ |
2386 | ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
2387 | if (!ires) { | |
5d304358 | 2388 | ret = -ENODEV; |
802f389a GKH |
2389 | dev_err(&pdev->dev, |
2390 | "platform_get_resource IORESOURCE_IRQ error.\n"); | |
5d304358 YS |
2391 | goto clean_up; |
2392 | } | |
2393 | ||
27140219 MZ |
2394 | irq = ires->start; |
2395 | irq_trigger = ires->flags & IRQF_TRIGGER_MASK; | |
2396 | ||
0a2e5b9b | 2397 | reg = ioremap(res->start, resource_size(res)); |
5d304358 YS |
2398 | if (reg == NULL) { |
2399 | ret = -ENOMEM; | |
802f389a | 2400 | dev_err(&pdev->dev, "ioremap error.\n"); |
5d304358 YS |
2401 | goto clean_up; |
2402 | } | |
2403 | ||
5effabbe YS |
2404 | if (pdev->dev.platform_data == NULL) { |
2405 | dev_err(&pdev->dev, "no platform data\n"); | |
2406 | ret = -ENODEV; | |
2407 | goto clean_up; | |
2408 | } | |
2409 | ||
5d304358 YS |
2410 | /* initialize hcd */ |
2411 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2412 | if (!hcd) { | |
2413 | ret = -ENOMEM; | |
802f389a | 2414 | dev_err(&pdev->dev, "Failed to create hcd\n"); |
5d304358 YS |
2415 | goto clean_up; |
2416 | } | |
2417 | r8a66597 = hcd_to_r8a66597(hcd); | |
2418 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2419 | dev_set_drvdata(&pdev->dev, r8a66597); | |
5effabbe YS |
2420 | r8a66597->pdata = pdev->dev.platform_data; |
2421 | r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; | |
5d304358 | 2422 | |
765786e0 MD |
2423 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2424 | snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); | |
2425 | r8a66597->clk = clk_get(&pdev->dev, clk_name); | |
2426 | if (IS_ERR(r8a66597->clk)) { | |
2427 | dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); | |
2428 | ret = PTR_ERR(r8a66597->clk); | |
2429 | goto clean_up2; | |
2430 | } | |
2431 | #endif | |
2432 | ||
5d304358 YS |
2433 | spin_lock_init(&r8a66597->lock); |
2434 | init_timer(&r8a66597->rh_timer); | |
2435 | r8a66597->rh_timer.function = r8a66597_timer; | |
2436 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2437 | r8a66597->reg = (unsigned long)reg; | |
2438 | ||
2439 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { | |
2440 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2441 | init_timer(&r8a66597->td_timer[i]); | |
2442 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2443 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
6d879107 YS |
2444 | setup_timer(&r8a66597->interval_timer[i], |
2445 | r8a66597_interval_timer, | |
2446 | (unsigned long)r8a66597); | |
5d304358 YS |
2447 | } |
2448 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2449 | ||
2450 | hcd->rsrc_start = res->start; | |
27140219 | 2451 | |
0bf32b80 | 2452 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); |
5d304358 | 2453 | if (ret != 0) { |
802f389a | 2454 | dev_err(&pdev->dev, "Failed to add hcd\n"); |
765786e0 | 2455 | goto clean_up3; |
5d304358 YS |
2456 | } |
2457 | ||
2458 | return 0; | |
2459 | ||
765786e0 MD |
2460 | clean_up3: |
2461 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) | |
2462 | clk_put(r8a66597->clk); | |
765786e0 | 2463 | clean_up2: |
d6435102 | 2464 | #endif |
765786e0 MD |
2465 | usb_put_hcd(hcd); |
2466 | ||
5d304358 YS |
2467 | clean_up: |
2468 | if (reg) | |
2469 | iounmap(reg); | |
5d304358 YS |
2470 | |
2471 | return ret; | |
2472 | } | |
2473 | ||
2474 | static struct platform_driver r8a66597_driver = { | |
2475 | .probe = r8a66597_probe, | |
2476 | .remove = r8a66597_remove, | |
2477 | .suspend = r8a66597_suspend, | |
2478 | .resume = r8a66597_resume, | |
2479 | .driver = { | |
2480 | .name = (char *) hcd_name, | |
f4fce61d | 2481 | .owner = THIS_MODULE, |
5d304358 YS |
2482 | }, |
2483 | }; | |
2484 | ||
2485 | static int __init r8a66597_init(void) | |
2486 | { | |
2487 | if (usb_disabled()) | |
2488 | return -ENODEV; | |
2489 | ||
5909f6ea GKH |
2490 | printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, |
2491 | DRIVER_VERSION); | |
5d304358 YS |
2492 | return platform_driver_register(&r8a66597_driver); |
2493 | } | |
2494 | module_init(r8a66597_init); | |
2495 | ||
2496 | static void __exit r8a66597_cleanup(void) | |
2497 | { | |
2498 | platform_driver_unregister(&r8a66597_driver); | |
2499 | } | |
2500 | module_exit(r8a66597_cleanup); | |
2501 |