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 | |
6d879107 | 49 | #define DRIVER_VERSION "10 Apr 2008" |
5d304358 YS |
50 | |
51 | static const char hcd_name[] = "r8a66597_hcd"; | |
52 | ||
53 | /* module parameters */ | |
9424ea29 | 54 | #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
5d304358 YS |
55 | static unsigned short clock = XTAL12; |
56 | module_param(clock, ushort, 0644); | |
e294531d YS |
57 | MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 " |
58 | "(default=0)"); | |
9424ea29 | 59 | #endif |
e294531d | 60 | |
5d304358 YS |
61 | static unsigned short vif = LDRV; |
62 | module_param(vif, ushort, 0644); | |
63 | MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0(default=32768)"); | |
e294531d YS |
64 | |
65 | static unsigned short endian; | |
5d304358 | 66 | module_param(endian, ushort, 0644); |
e294531d YS |
67 | MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)"); |
68 | ||
5d304358 YS |
69 | static unsigned short irq_sense = INTL; |
70 | module_param(irq_sense, ushort, 0644); | |
e294531d YS |
71 | MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0 " |
72 | "(default=32)"); | |
5d304358 YS |
73 | |
74 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum); | |
75 | static int r8a66597_get_frame(struct usb_hcd *hcd); | |
76 | ||
77 | /* this function must be called with interrupt disabled */ | |
78 | static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
79 | unsigned long reg) | |
80 | { | |
81 | u16 tmp; | |
82 | ||
83 | tmp = r8a66597_read(r8a66597, INTENB0); | |
84 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
85 | r8a66597_bset(r8a66597, 1 << pipenum, reg); | |
86 | r8a66597_write(r8a66597, tmp, INTENB0); | |
87 | } | |
88 | ||
89 | /* this function must be called with interrupt disabled */ | |
90 | static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum, | |
91 | unsigned long reg) | |
92 | { | |
93 | u16 tmp; | |
94 | ||
95 | tmp = r8a66597_read(r8a66597, INTENB0); | |
96 | r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
97 | r8a66597_bclr(r8a66597, 1 << pipenum, reg); | |
98 | r8a66597_write(r8a66597, tmp, INTENB0); | |
99 | } | |
100 | ||
101 | static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, | |
102 | u16 usbspd, u8 upphub, u8 hubport, int port) | |
103 | { | |
104 | u16 val; | |
105 | unsigned long devadd_reg = get_devadd_addr(r8a66597_address); | |
106 | ||
107 | val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); | |
108 | r8a66597_write(r8a66597, val, devadd_reg); | |
109 | } | |
110 | ||
9424ea29 | 111 | static int r8a66597_clock_enable(struct r8a66597 *r8a66597) |
5d304358 YS |
112 | { |
113 | u16 tmp; | |
114 | int i = 0; | |
115 | ||
9424ea29 YS |
116 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
117 | do { | |
118 | r8a66597_write(r8a66597, SCKE, SYSCFG0); | |
119 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
120 | if (i++ > 1000) { | |
121 | err("register access fail."); | |
122 | return -ENXIO; | |
123 | } | |
124 | } while ((tmp & SCKE) != SCKE); | |
125 | r8a66597_write(r8a66597, 0x04, 0x02); | |
126 | #else | |
5d304358 YS |
127 | do { |
128 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
129 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
130 | if (i++ > 1000) { | |
131 | err("register access fail."); | |
132 | return -ENXIO; | |
133 | } | |
134 | } while ((tmp & USBE) != USBE); | |
135 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
136 | r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0); | |
137 | ||
138 | i = 0; | |
139 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
140 | do { | |
141 | msleep(1); | |
142 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
143 | if (i++ > 500) { | |
144 | err("register access fail."); | |
145 | return -ENXIO; | |
146 | } | |
147 | } while ((tmp & SCKE) != SCKE); | |
9424ea29 YS |
148 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | static void r8a66597_clock_disable(struct r8a66597 *r8a66597) | |
154 | { | |
155 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
156 | udelay(1); | |
157 | #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) | |
158 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); | |
159 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
160 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
161 | #endif | |
162 | } | |
163 | ||
164 | static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) | |
165 | { | |
166 | u16 val; | |
167 | ||
168 | val = port ? DRPD : DCFM | DRPD; | |
169 | r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); | |
170 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
171 | ||
172 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); | |
173 | r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port)); | |
174 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
175 | } | |
176 | ||
177 | static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) | |
178 | { | |
179 | u16 val, tmp; | |
180 | ||
181 | r8a66597_write(r8a66597, 0, get_intenb_reg(port)); | |
182 | r8a66597_write(r8a66597, 0, get_intsts_reg(port)); | |
5d304358 | 183 | |
9424ea29 YS |
184 | r8a66597_port_power(r8a66597, port, 0); |
185 | ||
186 | do { | |
187 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
188 | udelay(640); | |
189 | } while (tmp == EDGESTS); | |
190 | ||
191 | val = port ? DRPD : DCFM | DRPD; | |
192 | r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); | |
193 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
194 | } | |
195 | ||
196 | static int enable_controller(struct r8a66597 *r8a66597) | |
197 | { | |
198 | int ret, port; | |
199 | ||
200 | ret = r8a66597_clock_enable(r8a66597); | |
201 | if (ret < 0) | |
202 | return ret; | |
5d304358 YS |
203 | |
204 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
5d304358 YS |
205 | r8a66597_bset(r8a66597, USBE, SYSCFG0); |
206 | ||
207 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
208 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
209 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
210 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
211 | ||
5d304358 YS |
212 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); |
213 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
214 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
5d304358 YS |
215 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); |
216 | ||
217 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
9424ea29 YS |
218 | |
219 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) | |
220 | r8a66597_enable_port(r8a66597, port); | |
5d304358 YS |
221 | |
222 | return 0; | |
223 | } | |
224 | ||
225 | static void disable_controller(struct r8a66597 *r8a66597) | |
226 | { | |
9424ea29 | 227 | int port; |
5d304358 YS |
228 | |
229 | r8a66597_write(r8a66597, 0, INTENB0); | |
5d304358 | 230 | r8a66597_write(r8a66597, 0, INTSTS0); |
5d304358 | 231 | |
9424ea29 YS |
232 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
233 | r8a66597_disable_port(r8a66597, port); | |
5d304358 | 234 | |
9424ea29 | 235 | r8a66597_clock_disable(r8a66597); |
5d304358 YS |
236 | } |
237 | ||
238 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
239 | struct usb_device *udev) | |
240 | { | |
241 | struct r8a66597_device *dev; | |
242 | ||
243 | if (udev->parent && udev->parent->devnum != 1) | |
244 | udev = udev->parent; | |
245 | ||
246 | dev = dev_get_drvdata(&udev->dev); | |
247 | if (dev) | |
248 | return dev->address; | |
249 | else | |
250 | return 0; | |
251 | } | |
252 | ||
253 | static int is_child_device(char *devpath) | |
254 | { | |
255 | return (devpath[2] ? 1 : 0); | |
256 | } | |
257 | ||
258 | static int is_hub_limit(char *devpath) | |
259 | { | |
260 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
261 | } | |
262 | ||
263 | static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) | |
264 | { | |
265 | if (root_port) { | |
266 | *root_port = (devpath[0] & 0x0F) - 1; | |
267 | if (*root_port >= R8A66597_MAX_ROOT_HUB) | |
268 | err("illegal root port number"); | |
269 | } | |
270 | if (hub_port) | |
271 | *hub_port = devpath[2] & 0x0F; | |
272 | } | |
273 | ||
274 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
275 | { | |
276 | u16 usbspd = 0; | |
277 | ||
278 | switch (speed) { | |
279 | case USB_SPEED_LOW: | |
280 | usbspd = LSMODE; | |
281 | break; | |
282 | case USB_SPEED_FULL: | |
283 | usbspd = FSMODE; | |
284 | break; | |
285 | case USB_SPEED_HIGH: | |
286 | usbspd = HSMODE; | |
287 | break; | |
288 | default: | |
289 | err("unknown speed"); | |
290 | break; | |
291 | } | |
292 | ||
293 | return usbspd; | |
294 | } | |
295 | ||
296 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
297 | { | |
298 | int idx; | |
299 | ||
300 | idx = address / 32; | |
301 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
302 | } | |
303 | ||
304 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
305 | { | |
306 | int idx; | |
307 | ||
308 | idx = address / 32; | |
309 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
310 | } | |
311 | ||
312 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
313 | { | |
314 | u16 pipenum = pipe->info.pipenum; | |
315 | unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; | |
316 | unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
317 | unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
318 | ||
319 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
320 | dma_ch = R8A66597_PIPE_NO_DMA; | |
321 | ||
322 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
323 | pipe->fifosel = fifosel[dma_ch]; | |
324 | pipe->fifoctr = fifoctr[dma_ch]; | |
325 | ||
326 | if (pipenum == 0) | |
327 | pipe->pipectr = DCPCTR; | |
328 | else | |
329 | pipe->pipectr = get_pipectr_addr(pipenum); | |
330 | ||
331 | if (check_bulk_or_isoc(pipenum)) { | |
332 | pipe->pipetre = get_pipetre_addr(pipenum); | |
333 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
334 | } else { | |
335 | pipe->pipetre = 0; | |
336 | pipe->pipetrn = 0; | |
337 | } | |
338 | } | |
339 | ||
340 | static struct r8a66597_device * | |
341 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
342 | { | |
343 | if (usb_pipedevice(urb->pipe) == 0) | |
344 | return &r8a66597->device0; | |
345 | ||
346 | return dev_get_drvdata(&urb->dev->dev); | |
347 | } | |
348 | ||
349 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
350 | struct urb *urb, u8 addr) | |
351 | { | |
352 | struct r8a66597_device *dev; | |
353 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
354 | ||
e294531d | 355 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
356 | if (dev == NULL) |
357 | return -ENOMEM; | |
358 | ||
359 | dev_set_drvdata(&urb->dev->dev, dev); | |
360 | dev->udev = urb->dev; | |
361 | dev->address = addr; | |
362 | dev->usb_address = usb_address; | |
363 | dev->state = USB_STATE_ADDRESS; | |
364 | dev->ep_in_toggle = 0; | |
365 | dev->ep_out_toggle = 0; | |
366 | INIT_LIST_HEAD(&dev->device_list); | |
367 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
368 | ||
369 | get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port); | |
370 | if (!is_child_device(urb->dev->devpath)) | |
371 | r8a66597->root_hub[dev->root_port].dev = dev; | |
372 | ||
373 | set_devadd_reg(r8a66597, dev->address, | |
374 | get_r8a66597_usb_speed(urb->dev->speed), | |
375 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
376 | dev->hub_port, dev->root_port); | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | /* this function must be called with interrupt disabled */ | |
382 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
383 | { | |
384 | u8 addr; /* R8A66597's address */ | |
385 | struct r8a66597_device *dev; | |
386 | ||
387 | if (is_hub_limit(urb->dev->devpath)) { | |
388 | err("Externel hub limit reached."); | |
389 | return 0; | |
390 | } | |
391 | ||
392 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
393 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
394 | return dev->address; | |
395 | ||
396 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
397 | if (r8a66597->address_map & (1 << addr)) | |
398 | continue; | |
399 | ||
400 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
401 | r8a66597->address_map |= 1 << addr; | |
402 | ||
403 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
404 | return 0; | |
405 | ||
406 | return addr; | |
407 | } | |
408 | ||
409 | err("cannot communicate with a USB device more than 10.(%x)", | |
410 | r8a66597->address_map); | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | /* this function must be called with interrupt disabled */ | |
416 | static void free_usb_address(struct r8a66597 *r8a66597, | |
417 | struct r8a66597_device *dev) | |
418 | { | |
419 | int port; | |
420 | ||
421 | if (!dev) | |
422 | return; | |
423 | ||
424 | dbg("free_addr: addr=%d", dev->address); | |
425 | ||
426 | dev->state = USB_STATE_DEFAULT; | |
427 | r8a66597->address_map &= ~(1 << dev->address); | |
428 | dev->address = 0; | |
429 | dev_set_drvdata(&dev->udev->dev, NULL); | |
430 | list_del(&dev->device_list); | |
431 | kfree(dev); | |
432 | ||
433 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
434 | if (r8a66597->root_hub[port].dev == dev) { | |
435 | r8a66597->root_hub[port].dev = NULL; | |
436 | break; | |
437 | } | |
438 | } | |
439 | } | |
440 | ||
441 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
442 | u16 mask, u16 loop) | |
443 | { | |
444 | u16 tmp; | |
445 | int i = 0; | |
446 | ||
447 | do { | |
448 | tmp = r8a66597_read(r8a66597, reg); | |
449 | if (i++ > 1000000) { | |
450 | err("register%lx, loop %x is timeout", reg, loop); | |
451 | break; | |
452 | } | |
453 | ndelay(1); | |
454 | } while ((tmp & mask) != loop); | |
455 | } | |
456 | ||
457 | /* this function must be called with interrupt disabled */ | |
458 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
459 | { | |
460 | u16 tmp; | |
461 | ||
462 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
463 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
464 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
465 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
466 | } | |
467 | ||
468 | /* this function must be called with interrupt disabled */ | |
469 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
470 | { | |
471 | u16 tmp; | |
472 | ||
473 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
474 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
475 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
476 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
477 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
478 | } | |
479 | ||
480 | /* this function must be called with interrupt disabled */ | |
481 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
482 | struct r8a66597_pipe *pipe) | |
483 | { | |
484 | u16 tmp; | |
485 | ||
486 | if (!pipe || pipe->info.pipenum == 0) | |
487 | return; | |
488 | ||
489 | pipe_stop(r8a66597, pipe); | |
490 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
491 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
492 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
493 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
494 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
495 | } | |
496 | ||
497 | /* this function must be called with interrupt disabled */ | |
498 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
499 | struct r8a66597_pipe *pipe, int toggle) | |
500 | { | |
501 | if (toggle) | |
502 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
503 | else | |
504 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
505 | } | |
506 | ||
507 | /* this function must be called with interrupt disabled */ | |
508 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
509 | { | |
510 | r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); | |
511 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); | |
512 | } | |
513 | ||
514 | /* this function must be called with interrupt disabled */ | |
515 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
516 | struct r8a66597_pipe *pipe) | |
517 | { | |
518 | cfifo_change(r8a66597, 0); | |
519 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL); | |
520 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL); | |
521 | ||
522 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE, | |
523 | pipe->fifosel); | |
524 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
525 | } | |
526 | ||
527 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
528 | { | |
529 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
530 | ||
531 | if (usb_pipeendpoint(urb->pipe) == 0) | |
532 | return 0; | |
533 | else | |
534 | return pipe->info.pipenum; | |
535 | } | |
536 | ||
537 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
538 | { | |
539 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
540 | ||
541 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
542 | } | |
543 | ||
544 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
545 | int urb_pipe) | |
546 | { | |
547 | if (!dev) | |
548 | return NULL; | |
549 | ||
550 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
551 | } | |
552 | ||
553 | /* this function must be called with interrupt disabled */ | |
554 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
555 | struct r8a66597_pipe *pipe, | |
556 | struct urb *urb, int set) | |
557 | { | |
558 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
559 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
560 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
561 | ||
562 | if (!toggle) | |
563 | return; | |
564 | ||
565 | if (set) | |
566 | *toggle |= 1 << endpoint; | |
567 | else | |
568 | *toggle &= ~(1 << endpoint); | |
569 | } | |
570 | ||
571 | /* this function must be called with interrupt disabled */ | |
572 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
573 | struct r8a66597_pipe *pipe, | |
574 | struct urb *urb) | |
575 | { | |
576 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
577 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
578 | else | |
579 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
580 | } | |
581 | ||
582 | /* this function must be called with interrupt disabled */ | |
583 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
584 | struct r8a66597_pipe *pipe, | |
585 | struct urb *urb) | |
586 | { | |
587 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
588 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
589 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
590 | ||
f6ace2c9 YS |
591 | if (!toggle) |
592 | return; | |
593 | ||
5d304358 YS |
594 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
595 | } | |
596 | ||
597 | /* this function must be called with interrupt disabled */ | |
598 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
599 | struct r8a66597_pipe_info *info) | |
600 | { | |
601 | u16 val = 0; | |
602 | ||
603 | if (info->pipenum == 0) | |
604 | return; | |
605 | ||
606 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
607 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
608 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
609 | if (!info->dir_in) | |
610 | val |= R8A66597_DIR; | |
611 | if (info->type == R8A66597_BULK && info->dir_in) | |
612 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
613 | val |= info->type | info->epnum; | |
614 | r8a66597_write(r8a66597, val, PIPECFG); | |
615 | ||
616 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
617 | PIPEBUF); | |
618 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
619 | PIPEMAXP); | |
5d304358 YS |
620 | r8a66597_write(r8a66597, info->interval, PIPEPERI); |
621 | } | |
622 | ||
5d304358 YS |
623 | /* this function must be called with interrupt disabled */ |
624 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
625 | { | |
626 | struct r8a66597_pipe_info *info; | |
627 | struct urb *urb = td->urb; | |
628 | ||
629 | if (td->pipenum > 0) { | |
630 | info = &td->pipe->info; | |
631 | cfifo_change(r8a66597, 0); | |
632 | pipe_buffer_setting(r8a66597, info); | |
633 | ||
634 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
635 | usb_pipeout(urb->pipe)) && | |
636 | !usb_pipecontrol(urb->pipe)) { | |
637 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
638 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
639 | clear_all_buffer(r8a66597, td->pipe); | |
640 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
641 | usb_pipeout(urb->pipe), 1); | |
642 | } | |
643 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
644 | } | |
645 | } | |
646 | ||
647 | /* this function must be called with interrupt disabled */ | |
648 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
649 | struct usb_endpoint_descriptor *ep) | |
650 | { | |
651 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
652 | ||
653 | memset(array, 0, sizeof(array)); | |
e294531d YS |
654 | switch (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { |
655 | case USB_ENDPOINT_XFER_BULK: | |
5d304358 YS |
656 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
657 | array[i++] = 4; | |
658 | else { | |
659 | array[i++] = 3; | |
660 | array[i++] = 5; | |
661 | } | |
e294531d YS |
662 | break; |
663 | case USB_ENDPOINT_XFER_INT: | |
5d304358 YS |
664 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) { |
665 | array[i++] = 6; | |
666 | array[i++] = 7; | |
667 | array[i++] = 8; | |
668 | } else | |
669 | array[i++] = 9; | |
e294531d YS |
670 | break; |
671 | case USB_ENDPOINT_XFER_ISOC: | |
5d304358 YS |
672 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
673 | array[i++] = 2; | |
674 | else | |
675 | array[i++] = 1; | |
e294531d YS |
676 | break; |
677 | default: | |
678 | err("Illegal type"); | |
679 | return 0; | |
680 | } | |
5d304358 YS |
681 | |
682 | i = 1; | |
683 | min = array[0]; | |
684 | while (array[i] != 0) { | |
685 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
686 | min = array[i]; | |
687 | i++; | |
688 | } | |
689 | ||
690 | return min; | |
691 | } | |
692 | ||
693 | static u16 get_r8a66597_type(__u8 type) | |
694 | { | |
695 | u16 r8a66597_type; | |
696 | ||
e294531d | 697 | switch (type) { |
5d304358 YS |
698 | case USB_ENDPOINT_XFER_BULK: |
699 | r8a66597_type = R8A66597_BULK; | |
700 | break; | |
701 | case USB_ENDPOINT_XFER_INT: | |
702 | r8a66597_type = R8A66597_INT; | |
703 | break; | |
704 | case USB_ENDPOINT_XFER_ISOC: | |
705 | r8a66597_type = R8A66597_ISO; | |
706 | break; | |
707 | default: | |
708 | err("Illegal type"); | |
709 | r8a66597_type = 0x0000; | |
710 | break; | |
711 | } | |
712 | ||
713 | return r8a66597_type; | |
714 | } | |
715 | ||
716 | static u16 get_bufnum(u16 pipenum) | |
717 | { | |
718 | u16 bufnum = 0; | |
719 | ||
720 | if (pipenum == 0) | |
721 | bufnum = 0; | |
722 | else if (check_bulk_or_isoc(pipenum)) | |
723 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
724 | else if (check_interrupt(pipenum)) | |
725 | bufnum = 4 + (pipenum - 6); | |
726 | else | |
727 | err("Illegal pipenum (%d)", pipenum); | |
728 | ||
729 | return bufnum; | |
730 | } | |
731 | ||
732 | static u16 get_buf_bsize(u16 pipenum) | |
733 | { | |
734 | u16 buf_bsize = 0; | |
735 | ||
736 | if (pipenum == 0) | |
737 | buf_bsize = 3; | |
738 | else if (check_bulk_or_isoc(pipenum)) | |
739 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
740 | else if (check_interrupt(pipenum)) | |
741 | buf_bsize = 0; | |
742 | else | |
743 | err("Illegal pipenum (%d)", pipenum); | |
744 | ||
745 | return buf_bsize; | |
746 | } | |
747 | ||
748 | /* this function must be called with interrupt disabled */ | |
749 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
750 | struct r8a66597_device *dev, | |
751 | struct r8a66597_pipe *pipe, | |
752 | struct urb *urb) | |
753 | { | |
9424ea29 | 754 | #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
5d304358 YS |
755 | int i; |
756 | struct r8a66597_pipe_info *info = &pipe->info; | |
757 | ||
758 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
759 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
760 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
761 | continue; | |
762 | ||
763 | info("address %d, EndpointAddress 0x%02x use DMA FIFO", | |
764 | usb_pipedevice(urb->pipe), | |
765 | info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum | |
766 | : info->epnum); | |
767 | ||
768 | r8a66597->dma_map |= 1 << i; | |
769 | dev->dma_map |= 1 << i; | |
770 | set_pipe_reg_addr(pipe, i); | |
771 | ||
772 | cfifo_change(r8a66597, 0); | |
773 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, | |
774 | MBW | CURPIPE, pipe->fifosel); | |
775 | ||
776 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
777 | pipe->info.pipenum); | |
778 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
779 | break; | |
780 | } | |
781 | } | |
9424ea29 | 782 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
5d304358 YS |
783 | } |
784 | ||
785 | /* this function must be called with interrupt disabled */ | |
786 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
787 | struct usb_host_endpoint *hep, | |
788 | struct r8a66597_pipe_info *info) | |
789 | { | |
790 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
791 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
792 | ||
793 | dbg("enable_pipe:"); | |
794 | ||
795 | pipe->info = *info; | |
796 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
797 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
798 | dev->pipe_cnt[pipe->info.pipenum]++; | |
799 | ||
800 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
801 | } | |
802 | ||
803 | /* this function must be called with interrupt disabled */ | |
804 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
805 | { | |
806 | struct r8a66597_td *td, *next; | |
807 | struct urb *urb; | |
808 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
809 | ||
810 | if (list_empty(list)) | |
811 | return; | |
812 | ||
813 | list_for_each_entry_safe(td, next, list, queue) { | |
814 | if (!td) | |
815 | continue; | |
816 | if (td->address != address) | |
817 | continue; | |
818 | ||
819 | urb = td->urb; | |
820 | list_del(&td->queue); | |
821 | kfree(td); | |
822 | ||
823 | if (urb) { | |
e9df41c5 AS |
824 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), |
825 | urb); | |
826 | ||
5d304358 | 827 | spin_unlock(&r8a66597->lock); |
4a00027d AS |
828 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, |
829 | -ENODEV); | |
5d304358 YS |
830 | spin_lock(&r8a66597->lock); |
831 | } | |
832 | break; | |
833 | } | |
834 | } | |
835 | ||
836 | /* this function must be called with interrupt disabled */ | |
837 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
838 | struct r8a66597_device *dev) | |
839 | { | |
840 | int check_ep0 = 0; | |
841 | u16 pipenum; | |
842 | ||
843 | if (!dev) | |
844 | return; | |
845 | ||
846 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
847 | if (!dev->pipe_cnt[pipenum]) | |
848 | continue; | |
849 | ||
850 | if (!check_ep0) { | |
851 | check_ep0 = 1; | |
852 | force_dequeue(r8a66597, 0, dev->address); | |
853 | } | |
854 | ||
855 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
856 | dev->pipe_cnt[pipenum] = 0; | |
857 | force_dequeue(r8a66597, pipenum, dev->address); | |
858 | } | |
859 | ||
860 | dbg("disable_pipe"); | |
861 | ||
862 | r8a66597->dma_map &= ~(dev->dma_map); | |
863 | dev->dma_map = 0; | |
864 | } | |
865 | ||
6d879107 YS |
866 | static unsigned long get_timer_interval(struct urb *urb, __u8 interval) |
867 | { | |
868 | __u8 i; | |
869 | unsigned long time = 1; | |
870 | ||
871 | if (usb_pipeisoc(urb->pipe)) | |
872 | return 0; | |
873 | ||
874 | if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) { | |
875 | for (i = 0; i < (interval - 1); i++) | |
876 | time *= 2; | |
877 | time = time * 125 / 1000; /* uSOF -> msec */ | |
878 | } else { | |
879 | time = interval; | |
880 | } | |
881 | ||
882 | return time; | |
883 | } | |
884 | ||
5d304358 YS |
885 | /* this function must be called with interrupt disabled */ |
886 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
887 | struct usb_host_endpoint *hep, | |
888 | struct usb_endpoint_descriptor *ep) | |
889 | { | |
890 | struct r8a66597_pipe_info info; | |
891 | ||
892 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
893 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
894 | info.epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
05eac910 | 895 | info.maxpacket = le16_to_cpu(ep->wMaxPacketSize); |
5d304358 YS |
896 | info.type = get_r8a66597_type(ep->bmAttributes |
897 | & USB_ENDPOINT_XFERTYPE_MASK); | |
898 | info.bufnum = get_bufnum(info.pipenum); | |
899 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
6d879107 YS |
900 | if (info.type == R8A66597_BULK) { |
901 | info.interval = 0; | |
902 | info.timer_interval = 0; | |
903 | } else { | |
904 | if (ep->bInterval > IITV) | |
905 | info.interval = IITV; | |
906 | else | |
907 | info.interval = ep->bInterval ? ep->bInterval - 1 : 0; | |
908 | info.timer_interval = get_timer_interval(urb, ep->bInterval); | |
909 | } | |
5d304358 YS |
910 | if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
911 | info.dir_in = 1; | |
912 | else | |
913 | info.dir_in = 0; | |
914 | ||
915 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
916 | } | |
917 | ||
918 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
919 | { | |
920 | struct r8a66597_device *dev; | |
921 | ||
922 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
923 | dev->state = USB_STATE_CONFIGURED; | |
924 | } | |
925 | ||
926 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
927 | u16 pipenum) | |
928 | { | |
929 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
930 | enable_irq_empty(r8a66597, pipenum); | |
931 | else | |
932 | enable_irq_ready(r8a66597, pipenum); | |
933 | ||
934 | if (!usb_pipeisoc(urb->pipe)) | |
935 | enable_irq_nrdy(r8a66597, pipenum); | |
936 | } | |
937 | ||
938 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
939 | { | |
940 | disable_irq_ready(r8a66597, pipenum); | |
941 | disable_irq_nrdy(r8a66597, pipenum); | |
942 | } | |
943 | ||
944 | /* this function must be called with interrupt disabled */ | |
29fab0cd YS |
945 | static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, |
946 | u16 syssts) | |
5d304358 | 947 | { |
29fab0cd YS |
948 | if (syssts == SE0) { |
949 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
950 | return; | |
951 | } | |
952 | ||
953 | if (syssts == FS_JSTS) | |
954 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
955 | else if (syssts == LS_JSTS) | |
956 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
957 | ||
e294531d | 958 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
5d304358 YS |
959 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); |
960 | } | |
961 | ||
962 | /* this function must be called with interrupt disabled */ | |
963 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
964 | { | |
965 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
966 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
967 | ||
968 | if (speed == HSMODE) | |
969 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
970 | else if (speed == LSMODE) | |
971 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
972 | ||
973 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
974 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
975 | } | |
976 | ||
977 | /* this function must be called with interrupt disabled */ | |
978 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
979 | { | |
980 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
981 | ||
982 | r8a66597->root_hub[port].port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
983 | r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_C_CONNECTION); | |
984 | ||
985 | disable_r8a66597_pipe_all(r8a66597, dev); | |
986 | free_usb_address(r8a66597, dev); | |
987 | ||
988 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
989 | } | |
990 | ||
991 | /* this function must be called with interrupt disabled */ | |
992 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
993 | struct r8a66597_td *td) | |
994 | { | |
995 | int i; | |
fd05e720 | 996 | __le16 *p = (__le16 *)td->urb->setup_packet; |
5d304358 YS |
997 | unsigned long setup_addr = USBREQ; |
998 | ||
999 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
1000 | DCPMAXP); | |
e294531d | 1001 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
1002 | |
1003 | for (i = 0; i < 4; i++) { | |
fd05e720 | 1004 | r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); |
5d304358 YS |
1005 | setup_addr += 2; |
1006 | } | |
1007 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
1008 | } | |
1009 | ||
1010 | /* this function must be called with interrupt disabled */ | |
1011 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
1012 | struct r8a66597_td *td) | |
1013 | { | |
1014 | struct urb *urb = td->urb; | |
1015 | ||
1016 | if (usb_pipecontrol(urb->pipe)) { | |
1017 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1018 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1019 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1020 | if (urb->actual_length == 0) { | |
1021 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1022 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1023 | } | |
1024 | pipe_irq_disable(r8a66597, td->pipenum); | |
1025 | pipe_start(r8a66597, td->pipe); | |
1026 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1027 | } else { | |
1028 | if (urb->actual_length == 0) { | |
1029 | pipe_irq_disable(r8a66597, td->pipenum); | |
1030 | pipe_setting(r8a66597, td); | |
1031 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 1032 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1033 | |
1034 | if (td->pipe->pipetre) { | |
1035 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 1036 | td->pipe->pipetre); |
5d304358 | 1037 | r8a66597_write(r8a66597, |
dfa5ec79 JL |
1038 | DIV_ROUND_UP |
1039 | (urb->transfer_buffer_length, | |
1040 | td->maxpacket), | |
e294531d | 1041 | td->pipe->pipetrn); |
5d304358 | 1042 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 1043 | td->pipe->pipetre); |
5d304358 YS |
1044 | } |
1045 | ||
1046 | pipe_start(r8a66597, td->pipe); | |
1047 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1048 | } | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | /* this function must be called with interrupt disabled */ | |
1053 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
1054 | struct r8a66597_td *td) | |
1055 | { | |
1056 | u16 tmp; | |
1057 | struct urb *urb = td->urb; | |
1058 | ||
1059 | if (usb_pipecontrol(urb->pipe)) { | |
1060 | pipe_stop(r8a66597, td->pipe); | |
1061 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1062 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1063 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1064 | if (urb->actual_length == 0) { | |
1065 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1066 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1067 | } | |
1068 | } else { | |
1069 | if (urb->actual_length == 0) | |
1070 | pipe_setting(r8a66597, td); | |
1071 | if (td->pipe->pipetre) | |
1072 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
1073 | } | |
e294531d | 1074 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1075 | |
1076 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1077 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1078 | if (unlikely((tmp & FRDY) == 0)) | |
1079 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1080 | else | |
1081 | packet_write(r8a66597, td->pipenum); | |
1082 | pipe_start(r8a66597, td->pipe); | |
1083 | } | |
1084 | ||
1085 | /* this function must be called with interrupt disabled */ | |
1086 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1087 | struct r8a66597_td *td) | |
1088 | { | |
1089 | struct urb *urb = td->urb; | |
1090 | ||
1091 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1092 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1093 | |
1094 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1095 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1096 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1097 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d | 1098 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
9424ea29 | 1099 | r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); |
5d304358 YS |
1100 | enable_irq_empty(r8a66597, 0); |
1101 | } else { | |
1102 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1103 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1104 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1105 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1106 | enable_irq_ready(r8a66597, 0); |
1107 | } | |
1108 | enable_irq_nrdy(r8a66597, 0); | |
1109 | pipe_start(r8a66597, td->pipe); | |
1110 | } | |
1111 | ||
e3a09051 YS |
1112 | static int is_set_address(unsigned char *setup_packet) |
1113 | { | |
1114 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1115 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1116 | return 1; | |
1117 | else | |
1118 | return 0; | |
1119 | } | |
1120 | ||
5d304358 YS |
1121 | /* this function must be called with interrupt disabled */ |
1122 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1123 | { | |
1124 | BUG_ON(!td); | |
1125 | ||
1126 | switch (td->type) { | |
1127 | case USB_PID_SETUP: | |
e3a09051 | 1128 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1129 | td->set_address = 1; |
1130 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1131 | td->urb); | |
1132 | if (td->urb->setup_packet[2] == 0) | |
1133 | return -EPIPE; | |
1134 | } | |
1135 | prepare_setup_packet(r8a66597, td); | |
1136 | break; | |
1137 | case USB_PID_IN: | |
1138 | prepare_packet_read(r8a66597, td); | |
1139 | break; | |
1140 | case USB_PID_OUT: | |
1141 | prepare_packet_write(r8a66597, td); | |
1142 | break; | |
1143 | case USB_PID_ACK: | |
1144 | prepare_status_packet(r8a66597, td); | |
1145 | break; | |
1146 | default: | |
1147 | err("invalid type."); | |
1148 | break; | |
1149 | } | |
1150 | ||
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1155 | { | |
1156 | if (usb_pipeisoc(urb->pipe)) { | |
1157 | if (urb->number_of_packets == td->iso_cnt) | |
1158 | return 1; | |
1159 | } | |
1160 | ||
1161 | /* control or bulk or interrupt */ | |
1162 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1163 | (td->short_packet) || (td->zero_packet)) | |
1164 | return 1; | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | /* this function must be called with interrupt disabled */ | |
1170 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1171 | { | |
1172 | unsigned long time; | |
1173 | ||
1174 | BUG_ON(!td); | |
1175 | ||
1176 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1177 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1178 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1179 | switch (usb_pipetype(td->urb->pipe)) { | |
1180 | case PIPE_INTERRUPT: | |
1181 | case PIPE_ISOCHRONOUS: | |
1182 | time = 30; | |
1183 | break; | |
1184 | default: | |
1185 | time = 300; | |
1186 | break; | |
1187 | } | |
1188 | ||
1189 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1190 | jiffies + msecs_to_jiffies(time)); | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1195 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1196 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1197 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1198 | { |
1199 | int restart = 0; | |
1200 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1201 | ||
1202 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1203 | ||
1204 | if (likely(td)) { | |
888fda47 | 1205 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1206 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1207 | ||
1208 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1209 | list_del(&td->queue); | |
1210 | kfree(td); | |
1211 | } | |
1212 | ||
1213 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1214 | restart = 1; | |
1215 | ||
1216 | if (likely(urb)) { | |
1217 | if (usb_pipeisoc(urb->pipe)) | |
1218 | urb->start_frame = r8a66597_get_frame(hcd); | |
1219 | ||
e9df41c5 | 1220 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); |
5d304358 | 1221 | spin_unlock(&r8a66597->lock); |
4a00027d | 1222 | usb_hcd_giveback_urb(hcd, urb, status); |
5d304358 YS |
1223 | spin_lock(&r8a66597->lock); |
1224 | } | |
1225 | ||
1226 | if (restart) { | |
1227 | td = r8a66597_get_td(r8a66597, pipenum); | |
1228 | if (unlikely(!td)) | |
1229 | return; | |
1230 | ||
1231 | start_transfer(r8a66597, td); | |
1232 | set_td_timer(r8a66597, td); | |
1233 | } | |
1234 | } | |
1235 | ||
5d304358 YS |
1236 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1237 | { | |
1238 | u16 tmp; | |
1239 | int rcv_len, bufsize, urb_len, size; | |
1240 | u16 *buf; | |
1241 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1242 | struct urb *urb; | |
1243 | int finish = 0; | |
dfd1e537 | 1244 | int status = 0; |
5d304358 YS |
1245 | |
1246 | if (unlikely(!td)) | |
1247 | return; | |
1248 | urb = td->urb; | |
1249 | ||
1250 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1251 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1252 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1253 | pipe_stop(r8a66597, td->pipe); |
1254 | pipe_irq_disable(r8a66597, pipenum); | |
1255 | err("in fifo not ready (%d)", pipenum); | |
888fda47 | 1256 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1257 | return; |
1258 | } | |
1259 | ||
1260 | /* prepare parameters */ | |
1261 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1262 | if (usb_pipeisoc(urb->pipe)) { |
1263 | buf = (u16 *)(urb->transfer_buffer + | |
1264 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1265 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1266 | } else { | |
1267 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1268 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1269 | } | |
dfd1e537 AS |
1270 | bufsize = min(urb_len, (int) td->maxpacket); |
1271 | if (rcv_len <= bufsize) { | |
1272 | size = rcv_len; | |
1273 | } else { | |
1274 | size = bufsize; | |
1275 | status = -EOVERFLOW; | |
1276 | finish = 1; | |
1277 | } | |
5d304358 YS |
1278 | |
1279 | /* update parameters */ | |
1280 | urb->actual_length += size; | |
1281 | if (rcv_len == 0) | |
1282 | td->zero_packet = 1; | |
dfd1e537 | 1283 | if (rcv_len < bufsize) { |
5d304358 | 1284 | td->short_packet = 1; |
5d304358 YS |
1285 | } |
1286 | if (usb_pipeisoc(urb->pipe)) { | |
1287 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1288 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1289 | td->iso_cnt++; |
dfd1e537 | 1290 | finish = 0; |
5d304358 YS |
1291 | } |
1292 | ||
1293 | /* check transfer finish */ | |
b0d9efba | 1294 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1295 | pipe_stop(r8a66597, td->pipe); |
1296 | pipe_irq_disable(r8a66597, pipenum); | |
1297 | finish = 1; | |
1298 | } | |
1299 | ||
1300 | /* read fifo */ | |
1301 | if (urb->transfer_buffer) { | |
1302 | if (size == 0) | |
1303 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1304 | else | |
1305 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1306 | buf, size); | |
1307 | } | |
1308 | ||
888fda47 AS |
1309 | if (finish && pipenum != 0) |
1310 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1311 | } |
1312 | ||
1313 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1314 | { | |
1315 | u16 tmp; | |
1316 | int bufsize, size; | |
1317 | u16 *buf; | |
1318 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1319 | struct urb *urb; | |
1320 | ||
1321 | if (unlikely(!td)) | |
1322 | return; | |
1323 | urb = td->urb; | |
1324 | ||
1325 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1326 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1327 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1328 | pipe_stop(r8a66597, td->pipe); |
1329 | pipe_irq_disable(r8a66597, pipenum); | |
1330 | err("out write fifo not ready. (%d)", pipenum); | |
888fda47 | 1331 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1332 | return; |
1333 | } | |
1334 | ||
1335 | /* prepare parameters */ | |
1336 | bufsize = td->maxpacket; | |
1337 | if (usb_pipeisoc(urb->pipe)) { | |
1338 | buf = (u16 *)(urb->transfer_buffer + | |
1339 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1340 | size = min(bufsize, | |
1341 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1342 | } else { | |
1343 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
1344 | size = min((int)bufsize, | |
1345 | urb->transfer_buffer_length - urb->actual_length); | |
1346 | } | |
1347 | ||
1348 | /* write fifo */ | |
1349 | if (pipenum > 0) | |
e294531d | 1350 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 YS |
1351 | if (urb->transfer_buffer) { |
1352 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1353 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1354 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1355 | } | |
1356 | ||
1357 | /* update parameters */ | |
1358 | urb->actual_length += size; | |
1359 | if (usb_pipeisoc(urb->pipe)) { | |
1360 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1361 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1362 | td->iso_cnt++; | |
1363 | } | |
1364 | ||
1365 | /* check transfer finish */ | |
1366 | if (check_transfer_finish(td, urb)) { | |
1367 | disable_irq_ready(r8a66597, pipenum); | |
1368 | enable_irq_empty(r8a66597, pipenum); | |
1369 | if (!usb_pipeisoc(urb->pipe)) | |
1370 | enable_irq_nrdy(r8a66597, pipenum); | |
1371 | } else | |
1372 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1373 | } | |
1374 | ||
1375 | ||
888fda47 | 1376 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1377 | { |
1378 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1379 | struct urb *urb; | |
1380 | u8 finish = 0; | |
1381 | ||
1382 | if (unlikely(!td)) | |
1383 | return; | |
1384 | urb = td->urb; | |
1385 | ||
1386 | switch (td->type) { | |
1387 | case USB_PID_IN: | |
1388 | case USB_PID_OUT: | |
5d304358 YS |
1389 | if (check_transfer_finish(td, urb)) |
1390 | td->type = USB_PID_ACK; | |
1391 | break; | |
1392 | case USB_PID_SETUP: | |
eb231054 | 1393 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1394 | td->type = USB_PID_ACK; |
eb231054 | 1395 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1396 | td->type = USB_PID_OUT; |
1397 | else | |
1398 | td->type = USB_PID_IN; | |
1399 | break; | |
1400 | case USB_PID_ACK: | |
1401 | finish = 1; | |
5d304358 YS |
1402 | break; |
1403 | } | |
1404 | ||
888fda47 AS |
1405 | if (finish || status != 0 || urb->unlinked) |
1406 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1407 | else |
1408 | start_transfer(r8a66597, td); | |
1409 | } | |
1410 | ||
888fda47 | 1411 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1412 | { |
1413 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1414 | ||
888fda47 | 1415 | if (td) { |
5d304358 YS |
1416 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1417 | ||
1418 | if (pid == PID_NAK) | |
888fda47 | 1419 | return -ECONNRESET; |
5d304358 | 1420 | else |
888fda47 | 1421 | return -EPIPE; |
5d304358 | 1422 | } |
888fda47 | 1423 | return 0; |
5d304358 YS |
1424 | } |
1425 | ||
1426 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1427 | { | |
1428 | u16 check; | |
1429 | u16 pipenum; | |
1430 | u16 mask; | |
1431 | struct r8a66597_td *td; | |
1432 | ||
1433 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1434 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1435 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1436 | if (mask & BRDY0) { |
1437 | td = r8a66597_get_td(r8a66597, 0); | |
1438 | if (td && td->type == USB_PID_IN) | |
1439 | packet_read(r8a66597, 0); | |
1440 | else | |
1441 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1442 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1443 | } |
1444 | ||
1445 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1446 | check = 1 << pipenum; | |
1447 | if (mask & check) { | |
1448 | td = r8a66597_get_td(r8a66597, pipenum); | |
1449 | if (unlikely(!td)) | |
1450 | continue; | |
1451 | ||
1452 | if (td->type == USB_PID_IN) | |
1453 | packet_read(r8a66597, pipenum); | |
1454 | else if (td->type == USB_PID_OUT) | |
1455 | packet_write(r8a66597, pipenum); | |
1456 | } | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1461 | { | |
1462 | u16 tmp; | |
1463 | u16 check; | |
1464 | u16 pipenum; | |
1465 | u16 mask; | |
1466 | struct r8a66597_td *td; | |
1467 | ||
1468 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1469 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1470 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1471 | if (mask & BEMP0) { |
1472 | cfifo_change(r8a66597, 0); | |
1473 | td = r8a66597_get_td(r8a66597, 0); | |
1474 | if (td && td->type != USB_PID_OUT) | |
1475 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1476 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1477 | } |
1478 | ||
1479 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1480 | check = 1 << pipenum; | |
1481 | if (mask & check) { | |
1482 | struct r8a66597_td *td; | |
1483 | td = r8a66597_get_td(r8a66597, pipenum); | |
1484 | if (unlikely(!td)) | |
1485 | continue; | |
1486 | ||
1487 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1488 | if ((tmp & INBUFM) == 0) { | |
1489 | disable_irq_empty(r8a66597, pipenum); | |
1490 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1491 | finish_request(r8a66597, td, pipenum, td->urb, |
1492 | 0); | |
5d304358 YS |
1493 | } |
1494 | } | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1499 | { | |
1500 | u16 check; | |
1501 | u16 pipenum; | |
1502 | u16 mask; | |
888fda47 | 1503 | int status; |
5d304358 YS |
1504 | |
1505 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1506 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1507 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1508 | if (mask & NRDY0) { |
1509 | cfifo_change(r8a66597, 0); | |
888fda47 | 1510 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1511 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1512 | check_next_phase(r8a66597, status); |
5d304358 YS |
1513 | } |
1514 | ||
1515 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1516 | check = 1 << pipenum; | |
1517 | if (mask & check) { | |
1518 | struct r8a66597_td *td; | |
1519 | td = r8a66597_get_td(r8a66597, pipenum); | |
1520 | if (unlikely(!td)) | |
1521 | continue; | |
1522 | ||
888fda47 | 1523 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1524 | pipe_irq_disable(r8a66597, pipenum); |
1525 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1526 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1527 | } |
1528 | } | |
1529 | } | |
1530 | ||
29fab0cd YS |
1531 | static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) |
1532 | { | |
1533 | mod_timer(&r8a66597->rh_timer, | |
1534 | jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); | |
1535 | } | |
1536 | ||
5d304358 YS |
1537 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port) |
1538 | { | |
1539 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1540 | ||
1541 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1542 | rh->scount = R8A66597_MAX_SAMPLING; | |
29fab0cd YS |
1543 | r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_CONNECTION) |
1544 | | (1 << USB_PORT_FEAT_C_CONNECTION); | |
1545 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1546 | } |
1547 | ||
1548 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) | |
1549 | { | |
1550 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1551 | u16 intsts0, intsts1, intsts2; | |
1552 | u16 intenb0, intenb1, intenb2; | |
1553 | u16 mask0, mask1, mask2; | |
888fda47 | 1554 | int status; |
5d304358 YS |
1555 | |
1556 | spin_lock(&r8a66597->lock); | |
1557 | ||
1558 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1559 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1560 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1561 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1562 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1563 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1564 | ||
1565 | mask2 = intsts2 & intenb2; | |
1566 | mask1 = intsts1 & intenb1; | |
1567 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1568 | if (mask2) { | |
1569 | if (mask2 & ATTCH) { | |
e294531d | 1570 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1571 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1572 | ||
1573 | /* start usb bus sampling */ | |
1574 | start_root_hub_sampling(r8a66597, 1); | |
1575 | } | |
1576 | if (mask2 & DTCH) { | |
e294531d | 1577 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1578 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1579 | r8a66597_usb_disconnect(r8a66597, 1); | |
1580 | } | |
1581 | } | |
1582 | ||
1583 | if (mask1) { | |
1584 | if (mask1 & ATTCH) { | |
e294531d | 1585 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1586 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1587 | ||
1588 | /* start usb bus sampling */ | |
1589 | start_root_hub_sampling(r8a66597, 0); | |
1590 | } | |
1591 | if (mask1 & DTCH) { | |
e294531d | 1592 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1593 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1594 | r8a66597_usb_disconnect(r8a66597, 0); | |
1595 | } | |
1596 | if (mask1 & SIGN) { | |
e294531d | 1597 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1598 | status = get_urb_error(r8a66597, 0); |
1599 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1600 | } |
1601 | if (mask1 & SACK) { | |
e294531d | 1602 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1603 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1604 | } |
1605 | } | |
1606 | if (mask0) { | |
1607 | if (mask0 & BRDY) | |
1608 | irq_pipe_ready(r8a66597); | |
1609 | if (mask0 & BEMP) | |
1610 | irq_pipe_empty(r8a66597); | |
1611 | if (mask0 & NRDY) | |
1612 | irq_pipe_nrdy(r8a66597); | |
1613 | } | |
1614 | ||
1615 | spin_unlock(&r8a66597->lock); | |
1616 | return IRQ_HANDLED; | |
1617 | } | |
1618 | ||
1619 | /* this function must be called with interrupt disabled */ | |
1620 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1621 | { | |
1622 | u16 tmp; | |
1623 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1624 | ||
1625 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1626 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1627 | ||
1628 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1629 | if ((tmp & USBRST) == USBRST) { | |
1630 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1631 | dvstctr_reg); | |
29fab0cd | 1632 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1633 | } else |
1634 | r8a66597_usb_connect(r8a66597, port); | |
1635 | } | |
1636 | ||
29fab0cd YS |
1637 | if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) { |
1638 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); | |
1639 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
1640 | } | |
1641 | ||
5d304358 YS |
1642 | if (rh->scount > 0) { |
1643 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1644 | if (tmp == rh->old_syssts) { | |
1645 | rh->scount--; | |
29fab0cd YS |
1646 | if (rh->scount == 0) |
1647 | r8a66597_check_syssts(r8a66597, port, tmp); | |
1648 | else | |
1649 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1650 | } else { |
1651 | rh->scount = R8A66597_MAX_SAMPLING; | |
1652 | rh->old_syssts = tmp; | |
29fab0cd | 1653 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1654 | } |
1655 | } | |
1656 | } | |
1657 | ||
6d879107 YS |
1658 | static void r8a66597_interval_timer(unsigned long _r8a66597) |
1659 | { | |
1660 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1661 | unsigned long flags; | |
1662 | u16 pipenum; | |
1663 | struct r8a66597_td *td; | |
1664 | ||
1665 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1666 | ||
1667 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1668 | if (!(r8a66597->interval_map & (1 << pipenum))) | |
1669 | continue; | |
1670 | if (timer_pending(&r8a66597->interval_timer[pipenum])) | |
1671 | continue; | |
1672 | ||
1673 | td = r8a66597_get_td(r8a66597, pipenum); | |
1674 | if (td) | |
1675 | start_transfer(r8a66597, td); | |
1676 | } | |
1677 | ||
1678 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1679 | } | |
1680 | ||
5d304358 YS |
1681 | static void r8a66597_td_timer(unsigned long _r8a66597) |
1682 | { | |
1683 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1684 | unsigned long flags; | |
1685 | u16 pipenum; | |
1686 | struct r8a66597_td *td, *new_td = NULL; | |
1687 | struct r8a66597_pipe *pipe; | |
1688 | ||
1689 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1690 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1691 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1692 | continue; | |
1693 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1694 | continue; | |
1695 | ||
1696 | td = r8a66597_get_td(r8a66597, pipenum); | |
1697 | if (!td) { | |
1698 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1699 | continue; | |
1700 | } | |
1701 | ||
1702 | if (td->urb->actual_length) { | |
1703 | set_td_timer(r8a66597, td); | |
1704 | break; | |
1705 | } | |
1706 | ||
1707 | pipe = td->pipe; | |
1708 | pipe_stop(r8a66597, pipe); | |
1709 | ||
1710 | new_td = td; | |
1711 | do { | |
1712 | list_move_tail(&new_td->queue, | |
1713 | &r8a66597->pipe_queue[pipenum]); | |
1714 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1715 | if (!new_td) { | |
1716 | new_td = td; | |
1717 | break; | |
1718 | } | |
1719 | } while (td != new_td && td->address == new_td->address); | |
1720 | ||
1721 | start_transfer(r8a66597, new_td); | |
1722 | ||
1723 | if (td == new_td) | |
1724 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1725 | else | |
1726 | set_td_timer(r8a66597, new_td); | |
1727 | break; | |
1728 | } | |
1729 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1730 | } | |
1731 | ||
1732 | static void r8a66597_timer(unsigned long _r8a66597) | |
1733 | { | |
1734 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1735 | unsigned long flags; | |
1736 | ||
1737 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1738 | ||
1739 | r8a66597_root_hub_control(r8a66597, 0); | |
1740 | r8a66597_root_hub_control(r8a66597, 1); | |
1741 | ||
1742 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1743 | } | |
1744 | ||
1745 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1746 | { | |
1747 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1748 | ||
1749 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1750 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1751 | return 1; | |
1752 | else | |
1753 | return 0; | |
1754 | } | |
1755 | ||
1756 | static int r8a66597_start(struct usb_hcd *hcd) | |
1757 | { | |
1758 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1759 | |
1760 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1761 | return enable_controller(r8a66597); |
5d304358 YS |
1762 | } |
1763 | ||
1764 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1765 | { | |
1766 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1767 | ||
1768 | disable_controller(r8a66597); | |
1769 | } | |
1770 | ||
1771 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1772 | { | |
1773 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1774 | u16 root_port, hub_port; | |
1775 | ||
1776 | if (usb_address == 0) { | |
1777 | get_port_number(urb->dev->devpath, | |
1778 | &root_port, &hub_port); | |
1779 | set_devadd_reg(r8a66597, 0, | |
1780 | get_r8a66597_usb_speed(urb->dev->speed), | |
1781 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1782 | hub_port, root_port); | |
1783 | } | |
1784 | } | |
1785 | ||
1786 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1787 | struct urb *urb, | |
e294531d | 1788 | struct usb_host_endpoint *hep) |
5d304358 YS |
1789 | { |
1790 | struct r8a66597_td *td; | |
1791 | u16 pipenum; | |
1792 | ||
e294531d | 1793 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1794 | if (td == NULL) |
1795 | return NULL; | |
1796 | ||
1797 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1798 | td->pipenum = pipenum; | |
1799 | td->pipe = hep->hcpriv; | |
1800 | td->urb = urb; | |
1801 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1802 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1803 | !usb_pipein(urb->pipe)); | |
1804 | if (usb_pipecontrol(urb->pipe)) | |
1805 | td->type = USB_PID_SETUP; | |
1806 | else if (usb_pipein(urb->pipe)) | |
1807 | td->type = USB_PID_IN; | |
1808 | else | |
1809 | td->type = USB_PID_OUT; | |
1810 | INIT_LIST_HEAD(&td->queue); | |
1811 | ||
1812 | return td; | |
1813 | } | |
1814 | ||
1815 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1816 | struct urb *urb, |
1817 | gfp_t mem_flags) | |
1818 | { | |
e9df41c5 | 1819 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1820 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1821 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1822 | int ret, request = 0; |
5d304358 YS |
1823 | unsigned long flags; |
1824 | ||
1825 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1826 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1827 | ret = -ENODEV; | |
e9df41c5 | 1828 | goto error_not_linked; |
5d304358 YS |
1829 | } |
1830 | ||
e9df41c5 AS |
1831 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1832 | if (ret) | |
1833 | goto error_not_linked; | |
1834 | ||
5d304358 | 1835 | if (!hep->hcpriv) { |
e294531d YS |
1836 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1837 | GFP_ATOMIC); | |
5d304358 YS |
1838 | if (!hep->hcpriv) { |
1839 | ret = -ENOMEM; | |
1840 | goto error; | |
1841 | } | |
1842 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1843 | if (usb_pipeendpoint(urb->pipe)) | |
1844 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1845 | } | |
1846 | ||
1847 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1848 | init_pipe_config(r8a66597, urb); | |
1849 | ||
1850 | set_address_zero(r8a66597, urb); | |
e294531d | 1851 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1852 | if (td == NULL) { |
1853 | ret = -ENOMEM; | |
1854 | goto error; | |
1855 | } | |
1856 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1857 | request = 1; | |
1858 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1859 | urb->hcpriv = td; |
5d304358 YS |
1860 | |
1861 | if (request) { | |
6d879107 YS |
1862 | if (td->pipe->info.timer_interval) { |
1863 | r8a66597->interval_map |= 1 << td->pipenum; | |
1864 | mod_timer(&r8a66597->interval_timer[td->pipenum], | |
1865 | jiffies + msecs_to_jiffies( | |
1866 | td->pipe->info.timer_interval)); | |
1867 | } else { | |
1868 | ret = start_transfer(r8a66597, td); | |
1869 | if (ret < 0) { | |
1870 | list_del(&td->queue); | |
1871 | kfree(td); | |
1872 | } | |
5d304358 YS |
1873 | } |
1874 | } else | |
1875 | set_td_timer(r8a66597, td); | |
1876 | ||
1877 | error: | |
e9df41c5 AS |
1878 | if (ret) |
1879 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1880 | error_not_linked: | |
5d304358 YS |
1881 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1882 | return ret; | |
1883 | } | |
1884 | ||
e9df41c5 AS |
1885 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1886 | int status) | |
5d304358 YS |
1887 | { |
1888 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1889 | struct r8a66597_td *td; | |
1890 | unsigned long flags; | |
e9df41c5 | 1891 | int rc; |
5d304358 YS |
1892 | |
1893 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1894 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1895 | if (rc) | |
1896 | goto done; | |
1897 | ||
5d304358 YS |
1898 | if (urb->hcpriv) { |
1899 | td = urb->hcpriv; | |
1900 | pipe_stop(r8a66597, td->pipe); | |
1901 | pipe_irq_disable(r8a66597, td->pipenum); | |
1902 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1903 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1904 | } |
e9df41c5 | 1905 | done: |
5d304358 | 1906 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1907 | return rc; |
5d304358 YS |
1908 | } |
1909 | ||
1910 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1911 | struct usb_host_endpoint *hep) | |
1912 | { | |
1913 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1914 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1915 | struct r8a66597_td *td; | |
1916 | struct urb *urb = NULL; | |
1917 | u16 pipenum; | |
1918 | unsigned long flags; | |
1919 | ||
1920 | if (pipe == NULL) | |
1921 | return; | |
1922 | pipenum = pipe->info.pipenum; | |
1923 | ||
1924 | if (pipenum == 0) { | |
1925 | kfree(hep->hcpriv); | |
1926 | hep->hcpriv = NULL; | |
1927 | return; | |
1928 | } | |
1929 | ||
1930 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1931 | pipe_stop(r8a66597, pipe); | |
1932 | pipe_irq_disable(r8a66597, pipenum); | |
1933 | disable_irq_empty(r8a66597, pipenum); | |
1934 | td = r8a66597_get_td(r8a66597, pipenum); | |
1935 | if (td) | |
1936 | urb = td->urb; | |
888fda47 | 1937 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
1938 | kfree(hep->hcpriv); |
1939 | hep->hcpriv = NULL; | |
1940 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1941 | } | |
1942 | ||
1943 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
1944 | { | |
1945 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1946 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
1947 | } | |
1948 | ||
1949 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
1950 | { | |
1951 | int chix; | |
1952 | ||
1953 | if (udev->state == USB_STATE_CONFIGURED && | |
1954 | udev->parent && udev->parent->devnum > 1 && | |
1955 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
1956 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
1957 | ||
1958 | for (chix = 0; chix < udev->maxchild; chix++) { | |
1959 | struct usb_device *childdev = udev->children[chix]; | |
1960 | ||
1961 | if (childdev) | |
1962 | collect_usb_address_map(childdev, map); | |
1963 | } | |
1964 | } | |
1965 | ||
1966 | /* this function must be called with interrupt disabled */ | |
1967 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
1968 | int addr) | |
1969 | { | |
1970 | struct r8a66597_device *dev; | |
1971 | struct list_head *list = &r8a66597->child_device; | |
1972 | ||
1973 | list_for_each_entry(dev, list, device_list) { | |
1974 | if (!dev) | |
1975 | continue; | |
1976 | if (dev->usb_address != addr) | |
1977 | continue; | |
1978 | ||
1979 | return dev; | |
1980 | } | |
1981 | ||
1982 | err("get_r8a66597_device fail.(%d)\n", addr); | |
1983 | return NULL; | |
1984 | } | |
1985 | ||
1986 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
1987 | struct usb_device *root_hub, | |
1988 | unsigned long *map) | |
1989 | { | |
1990 | int i, j, addr; | |
1991 | unsigned long diff; | |
1992 | unsigned long flags; | |
1993 | ||
1994 | for (i = 0; i < 4; i++) { | |
1995 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
1996 | if (!diff) | |
1997 | continue; | |
1998 | ||
1999 | for (j = 0; j < 32; j++) { | |
2000 | if (!(diff & (1 << j))) | |
2001 | continue; | |
2002 | ||
2003 | addr = i * 32 + j; | |
2004 | if (map[i] & (1 << j)) | |
2005 | set_child_connect_map(r8a66597, addr); | |
2006 | else { | |
2007 | struct r8a66597_device *dev; | |
2008 | ||
2009 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2010 | dev = get_r8a66597_device(r8a66597, addr); | |
2011 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2012 | free_usb_address(r8a66597, dev); | |
2013 | put_child_connect_map(r8a66597, addr); | |
2014 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2015 | } | |
2016 | } | |
2017 | } | |
2018 | } | |
2019 | ||
2020 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
2021 | struct usb_hcd *hcd) | |
2022 | { | |
2023 | struct usb_bus *bus; | |
2024 | unsigned long now_map[4]; | |
2025 | ||
2026 | memset(now_map, 0, sizeof(now_map)); | |
2027 | ||
2028 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
2029 | if (!bus->root_hub) | |
2030 | continue; | |
2031 | ||
2032 | if (bus->busnum != hcd->self.busnum) | |
2033 | continue; | |
2034 | ||
2035 | collect_usb_address_map(bus->root_hub, now_map); | |
2036 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2041 | { | |
2042 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2043 | unsigned long flags; | |
2044 | int i; | |
2045 | ||
2046 | r8a66597_check_detect_child(r8a66597, hcd); | |
2047 | ||
2048 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2049 | ||
2050 | *buf = 0; /* initialize (no change) */ | |
2051 | ||
2052 | for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) { | |
2053 | if (r8a66597->root_hub[i].port & 0xffff0000) | |
2054 | *buf |= 1 << (i + 1); | |
2055 | } | |
2056 | ||
2057 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2058 | ||
2059 | return (*buf != 0); | |
2060 | } | |
2061 | ||
2062 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
2063 | struct usb_hub_descriptor *desc) | |
2064 | { | |
2065 | desc->bDescriptorType = 0x29; | |
2066 | desc->bHubContrCurrent = 0; | |
2067 | desc->bNbrPorts = R8A66597_MAX_ROOT_HUB; | |
2068 | desc->bDescLength = 9; | |
2069 | desc->bPwrOn2PwrGood = 0; | |
2070 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
2071 | desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1; | |
2072 | desc->bitmap[1] = ~0; | |
2073 | } | |
2074 | ||
2075 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2076 | u16 wIndex, char *buf, u16 wLength) | |
2077 | { | |
2078 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2079 | int ret; | |
2080 | int port = (wIndex & 0x00FF) - 1; | |
2081 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2082 | unsigned long flags; | |
2083 | ||
2084 | ret = 0; | |
2085 | ||
2086 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2087 | switch (typeReq) { | |
2088 | case ClearHubFeature: | |
2089 | case SetHubFeature: | |
2090 | switch (wValue) { | |
2091 | case C_HUB_OVER_CURRENT: | |
2092 | case C_HUB_LOCAL_POWER: | |
2093 | break; | |
2094 | default: | |
2095 | goto error; | |
2096 | } | |
2097 | break; | |
2098 | case ClearPortFeature: | |
2099 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2100 | goto error; | |
2101 | if (wLength != 0) | |
2102 | goto error; | |
2103 | ||
2104 | switch (wValue) { | |
2105 | case USB_PORT_FEAT_ENABLE: | |
2106 | rh->port &= (1 << USB_PORT_FEAT_POWER); | |
2107 | break; | |
2108 | case USB_PORT_FEAT_SUSPEND: | |
2109 | break; | |
2110 | case USB_PORT_FEAT_POWER: | |
2111 | r8a66597_port_power(r8a66597, port, 0); | |
2112 | break; | |
2113 | case USB_PORT_FEAT_C_ENABLE: | |
2114 | case USB_PORT_FEAT_C_SUSPEND: | |
2115 | case USB_PORT_FEAT_C_CONNECTION: | |
2116 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2117 | case USB_PORT_FEAT_C_RESET: | |
2118 | break; | |
2119 | default: | |
2120 | goto error; | |
2121 | } | |
2122 | rh->port &= ~(1 << wValue); | |
2123 | break; | |
2124 | case GetHubDescriptor: | |
2125 | r8a66597_hub_descriptor(r8a66597, | |
2126 | (struct usb_hub_descriptor *)buf); | |
2127 | break; | |
2128 | case GetHubStatus: | |
2129 | *buf = 0x00; | |
2130 | break; | |
2131 | case GetPortStatus: | |
2132 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2133 | goto error; | |
fd05e720 | 2134 | *(__le32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2135 | break; |
2136 | case SetPortFeature: | |
2137 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2138 | goto error; | |
2139 | if (wLength != 0) | |
2140 | goto error; | |
2141 | ||
2142 | switch (wValue) { | |
2143 | case USB_PORT_FEAT_SUSPEND: | |
2144 | break; | |
2145 | case USB_PORT_FEAT_POWER: | |
2146 | r8a66597_port_power(r8a66597, port, 1); | |
2147 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2148 | break; | |
2149 | case USB_PORT_FEAT_RESET: { | |
2150 | struct r8a66597_device *dev = rh->dev; | |
2151 | ||
2152 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2153 | ||
2154 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2155 | free_usb_address(r8a66597, dev); | |
2156 | ||
2157 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2158 | get_dvstctr_reg(port)); | |
2159 | mod_timer(&r8a66597->rh_timer, | |
2160 | jiffies + msecs_to_jiffies(50)); | |
2161 | } | |
2162 | break; | |
2163 | default: | |
2164 | goto error; | |
2165 | } | |
2166 | rh->port |= 1 << wValue; | |
2167 | break; | |
2168 | default: | |
2169 | error: | |
2170 | ret = -EPIPE; | |
2171 | break; | |
2172 | } | |
2173 | ||
2174 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2175 | return ret; | |
2176 | } | |
2177 | ||
2178 | static struct hc_driver r8a66597_hc_driver = { | |
2179 | .description = hcd_name, | |
2180 | .hcd_priv_size = sizeof(struct r8a66597), | |
2181 | .irq = r8a66597_irq, | |
2182 | ||
2183 | /* | |
2184 | * generic hardware linkage | |
2185 | */ | |
2186 | .flags = HCD_USB2, | |
2187 | ||
2188 | .start = r8a66597_start, | |
2189 | .stop = r8a66597_stop, | |
2190 | ||
2191 | /* | |
2192 | * managing i/o requests and associated device resources | |
2193 | */ | |
2194 | .urb_enqueue = r8a66597_urb_enqueue, | |
2195 | .urb_dequeue = r8a66597_urb_dequeue, | |
2196 | .endpoint_disable = r8a66597_endpoint_disable, | |
2197 | ||
2198 | /* | |
2199 | * periodic schedule support | |
2200 | */ | |
2201 | .get_frame_number = r8a66597_get_frame, | |
2202 | ||
2203 | /* | |
2204 | * root hub support | |
2205 | */ | |
2206 | .hub_status_data = r8a66597_hub_status_data, | |
2207 | .hub_control = r8a66597_hub_control, | |
2208 | }; | |
2209 | ||
2210 | #if defined(CONFIG_PM) | |
2211 | static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) | |
2212 | { | |
5d304358 YS |
2213 | return 0; |
2214 | } | |
2215 | ||
2216 | static int r8a66597_resume(struct platform_device *pdev) | |
2217 | { | |
5d304358 YS |
2218 | return 0; |
2219 | } | |
2220 | #else /* if defined(CONFIG_PM) */ | |
2221 | #define r8a66597_suspend NULL | |
2222 | #define r8a66597_resume NULL | |
2223 | #endif | |
2224 | ||
2225 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2226 | { | |
2227 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2228 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2229 | ||
2230 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2231 | usb_remove_hcd(hcd); |
ca0677a2 | 2232 | iounmap((void *)r8a66597->reg); |
5d304358 YS |
2233 | usb_put_hcd(hcd); |
2234 | return 0; | |
2235 | } | |
2236 | ||
2237 | #define resource_len(r) (((r)->end - (r)->start) + 1) | |
2238 | static int __init r8a66597_probe(struct platform_device *pdev) | |
2239 | { | |
2240 | struct resource *res = NULL; | |
2241 | int irq = -1; | |
2242 | void __iomem *reg = NULL; | |
2243 | struct usb_hcd *hcd = NULL; | |
2244 | struct r8a66597 *r8a66597; | |
2245 | int ret = 0; | |
2246 | int i; | |
2247 | ||
2248 | if (pdev->dev.dma_mask) { | |
2249 | ret = -EINVAL; | |
2250 | err("dma not support"); | |
2251 | goto clean_up; | |
2252 | } | |
2253 | ||
2254 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, | |
2255 | (char *)hcd_name); | |
2256 | if (!res) { | |
2257 | ret = -ENODEV; | |
2258 | err("platform_get_resource_byname error."); | |
2259 | goto clean_up; | |
2260 | } | |
2261 | ||
2262 | irq = platform_get_irq(pdev, 0); | |
2263 | if (irq < 0) { | |
2264 | ret = -ENODEV; | |
2265 | err("platform_get_irq error."); | |
2266 | goto clean_up; | |
2267 | } | |
2268 | ||
2269 | reg = ioremap(res->start, resource_len(res)); | |
2270 | if (reg == NULL) { | |
2271 | ret = -ENOMEM; | |
2272 | err("ioremap error."); | |
2273 | goto clean_up; | |
2274 | } | |
2275 | ||
2276 | /* initialize hcd */ | |
2277 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2278 | if (!hcd) { | |
2279 | ret = -ENOMEM; | |
2280 | err("Failed to create hcd"); | |
2281 | goto clean_up; | |
2282 | } | |
2283 | r8a66597 = hcd_to_r8a66597(hcd); | |
2284 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2285 | dev_set_drvdata(&pdev->dev, r8a66597); | |
2286 | ||
2287 | spin_lock_init(&r8a66597->lock); | |
2288 | init_timer(&r8a66597->rh_timer); | |
2289 | r8a66597->rh_timer.function = r8a66597_timer; | |
2290 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2291 | r8a66597->reg = (unsigned long)reg; | |
2292 | ||
2293 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { | |
2294 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2295 | init_timer(&r8a66597->td_timer[i]); | |
2296 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2297 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
6d879107 YS |
2298 | setup_timer(&r8a66597->interval_timer[i], |
2299 | r8a66597_interval_timer, | |
2300 | (unsigned long)r8a66597); | |
5d304358 YS |
2301 | } |
2302 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2303 | ||
2304 | hcd->rsrc_start = res->start; | |
442258e2 | 2305 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); |
5d304358 YS |
2306 | if (ret != 0) { |
2307 | err("Failed to add hcd"); | |
2308 | goto clean_up; | |
2309 | } | |
2310 | ||
2311 | return 0; | |
2312 | ||
2313 | clean_up: | |
2314 | if (reg) | |
2315 | iounmap(reg); | |
5d304358 YS |
2316 | |
2317 | return ret; | |
2318 | } | |
2319 | ||
2320 | static struct platform_driver r8a66597_driver = { | |
2321 | .probe = r8a66597_probe, | |
2322 | .remove = r8a66597_remove, | |
2323 | .suspend = r8a66597_suspend, | |
2324 | .resume = r8a66597_resume, | |
2325 | .driver = { | |
2326 | .name = (char *) hcd_name, | |
f4fce61d | 2327 | .owner = THIS_MODULE, |
5d304358 YS |
2328 | }, |
2329 | }; | |
2330 | ||
2331 | static int __init r8a66597_init(void) | |
2332 | { | |
2333 | if (usb_disabled()) | |
2334 | return -ENODEV; | |
2335 | ||
2336 | info("driver %s, %s", hcd_name, DRIVER_VERSION); | |
2337 | return platform_driver_register(&r8a66597_driver); | |
2338 | } | |
2339 | module_init(r8a66597_init); | |
2340 | ||
2341 | static void __exit r8a66597_cleanup(void) | |
2342 | { | |
2343 | platform_driver_unregister(&r8a66597_driver); | |
2344 | } | |
2345 | module_exit(r8a66597_cleanup); | |
2346 |