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 | ||
27140219 | 69 | static unsigned short irq_sense = 0xff; |
5d304358 | 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 | 116 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
765786e0 MD |
117 | #if defined(CONFIG_HAVE_CLK) |
118 | clk_enable(r8a66597->clk); | |
119 | #endif | |
9424ea29 YS |
120 | do { |
121 | r8a66597_write(r8a66597, SCKE, SYSCFG0); | |
122 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
123 | if (i++ > 1000) { | |
802f389a | 124 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
9424ea29 YS |
125 | return -ENXIO; |
126 | } | |
127 | } while ((tmp & SCKE) != SCKE); | |
128 | r8a66597_write(r8a66597, 0x04, 0x02); | |
129 | #else | |
5d304358 YS |
130 | do { |
131 | r8a66597_write(r8a66597, USBE, SYSCFG0); | |
132 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
133 | if (i++ > 1000) { | |
802f389a | 134 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
5d304358 YS |
135 | return -ENXIO; |
136 | } | |
137 | } while ((tmp & USBE) != USBE); | |
138 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
139 | r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0); | |
140 | ||
141 | i = 0; | |
142 | r8a66597_bset(r8a66597, XCKE, SYSCFG0); | |
143 | do { | |
144 | msleep(1); | |
145 | tmp = r8a66597_read(r8a66597, SYSCFG0); | |
146 | if (i++ > 500) { | |
802f389a | 147 | printk(KERN_ERR "r8a66597: register access fail.\n"); |
5d304358 YS |
148 | return -ENXIO; |
149 | } | |
150 | } while ((tmp & SCKE) != SCKE); | |
9424ea29 YS |
151 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
156 | static void r8a66597_clock_disable(struct r8a66597 *r8a66597) | |
157 | { | |
158 | r8a66597_bclr(r8a66597, SCKE, SYSCFG0); | |
159 | udelay(1); | |
765786e0 MD |
160 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
161 | #if defined(CONFIG_HAVE_CLK) | |
162 | clk_disable(r8a66597->clk); | |
163 | #endif | |
164 | #else | |
9424ea29 YS |
165 | r8a66597_bclr(r8a66597, PLLC, SYSCFG0); |
166 | r8a66597_bclr(r8a66597, XCKE, SYSCFG0); | |
167 | r8a66597_bclr(r8a66597, USBE, SYSCFG0); | |
168 | #endif | |
169 | } | |
170 | ||
171 | static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) | |
172 | { | |
173 | u16 val; | |
174 | ||
175 | val = port ? DRPD : DCFM | DRPD; | |
176 | r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); | |
177 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
178 | ||
179 | r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); | |
180 | r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port)); | |
181 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
182 | } | |
183 | ||
184 | static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) | |
185 | { | |
186 | u16 val, tmp; | |
187 | ||
188 | r8a66597_write(r8a66597, 0, get_intenb_reg(port)); | |
189 | r8a66597_write(r8a66597, 0, get_intsts_reg(port)); | |
5d304358 | 190 | |
9424ea29 YS |
191 | r8a66597_port_power(r8a66597, port, 0); |
192 | ||
193 | do { | |
194 | tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; | |
195 | udelay(640); | |
196 | } while (tmp == EDGESTS); | |
197 | ||
198 | val = port ? DRPD : DCFM | DRPD; | |
199 | r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); | |
200 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
201 | } | |
202 | ||
203 | static int enable_controller(struct r8a66597 *r8a66597) | |
204 | { | |
205 | int ret, port; | |
206 | ||
207 | ret = r8a66597_clock_enable(r8a66597); | |
208 | if (ret < 0) | |
209 | return ret; | |
5d304358 YS |
210 | |
211 | r8a66597_bset(r8a66597, vif & LDRV, PINCFG); | |
5d304358 YS |
212 | r8a66597_bset(r8a66597, USBE, SYSCFG0); |
213 | ||
214 | r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0); | |
215 | r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG); | |
216 | r8a66597_bset(r8a66597, BRDY0, BRDYENB); | |
217 | r8a66597_bset(r8a66597, BEMP0, BEMPENB); | |
218 | ||
5d304358 YS |
219 | r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); |
220 | r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); | |
221 | r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); | |
5d304358 YS |
222 | r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); |
223 | ||
224 | r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1); | |
9424ea29 YS |
225 | |
226 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) | |
227 | r8a66597_enable_port(r8a66597, port); | |
5d304358 YS |
228 | |
229 | return 0; | |
230 | } | |
231 | ||
232 | static void disable_controller(struct r8a66597 *r8a66597) | |
233 | { | |
9424ea29 | 234 | int port; |
5d304358 YS |
235 | |
236 | r8a66597_write(r8a66597, 0, INTENB0); | |
5d304358 | 237 | r8a66597_write(r8a66597, 0, INTSTS0); |
5d304358 | 238 | |
9424ea29 YS |
239 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
240 | r8a66597_disable_port(r8a66597, port); | |
5d304358 | 241 | |
9424ea29 | 242 | r8a66597_clock_disable(r8a66597); |
5d304358 YS |
243 | } |
244 | ||
245 | static int get_parent_r8a66597_address(struct r8a66597 *r8a66597, | |
246 | struct usb_device *udev) | |
247 | { | |
248 | struct r8a66597_device *dev; | |
249 | ||
250 | if (udev->parent && udev->parent->devnum != 1) | |
251 | udev = udev->parent; | |
252 | ||
253 | dev = dev_get_drvdata(&udev->dev); | |
254 | if (dev) | |
255 | return dev->address; | |
256 | else | |
257 | return 0; | |
258 | } | |
259 | ||
260 | static int is_child_device(char *devpath) | |
261 | { | |
262 | return (devpath[2] ? 1 : 0); | |
263 | } | |
264 | ||
265 | static int is_hub_limit(char *devpath) | |
266 | { | |
267 | return ((strlen(devpath) >= 4) ? 1 : 0); | |
268 | } | |
269 | ||
270 | static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) | |
271 | { | |
272 | if (root_port) { | |
273 | *root_port = (devpath[0] & 0x0F) - 1; | |
274 | if (*root_port >= R8A66597_MAX_ROOT_HUB) | |
802f389a | 275 | printk(KERN_ERR "r8a66597: Illegal root port number.\n"); |
5d304358 YS |
276 | } |
277 | if (hub_port) | |
278 | *hub_port = devpath[2] & 0x0F; | |
279 | } | |
280 | ||
281 | static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) | |
282 | { | |
283 | u16 usbspd = 0; | |
284 | ||
285 | switch (speed) { | |
286 | case USB_SPEED_LOW: | |
287 | usbspd = LSMODE; | |
288 | break; | |
289 | case USB_SPEED_FULL: | |
290 | usbspd = FSMODE; | |
291 | break; | |
292 | case USB_SPEED_HIGH: | |
293 | usbspd = HSMODE; | |
294 | break; | |
295 | default: | |
802f389a | 296 | printk(KERN_ERR "r8a66597: unknown speed\n"); |
5d304358 YS |
297 | break; |
298 | } | |
299 | ||
300 | return usbspd; | |
301 | } | |
302 | ||
303 | static void set_child_connect_map(struct r8a66597 *r8a66597, int address) | |
304 | { | |
305 | int idx; | |
306 | ||
307 | idx = address / 32; | |
308 | r8a66597->child_connect_map[idx] |= 1 << (address % 32); | |
309 | } | |
310 | ||
311 | static void put_child_connect_map(struct r8a66597 *r8a66597, int address) | |
312 | { | |
313 | int idx; | |
314 | ||
315 | idx = address / 32; | |
316 | r8a66597->child_connect_map[idx] &= ~(1 << (address % 32)); | |
317 | } | |
318 | ||
319 | static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) | |
320 | { | |
321 | u16 pipenum = pipe->info.pipenum; | |
fe9b9034 ML |
322 | const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; |
323 | const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; | |
324 | const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; | |
5d304358 YS |
325 | |
326 | if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ | |
327 | dma_ch = R8A66597_PIPE_NO_DMA; | |
328 | ||
329 | pipe->fifoaddr = fifoaddr[dma_ch]; | |
330 | pipe->fifosel = fifosel[dma_ch]; | |
331 | pipe->fifoctr = fifoctr[dma_ch]; | |
332 | ||
333 | if (pipenum == 0) | |
334 | pipe->pipectr = DCPCTR; | |
335 | else | |
336 | pipe->pipectr = get_pipectr_addr(pipenum); | |
337 | ||
338 | if (check_bulk_or_isoc(pipenum)) { | |
339 | pipe->pipetre = get_pipetre_addr(pipenum); | |
340 | pipe->pipetrn = get_pipetrn_addr(pipenum); | |
341 | } else { | |
342 | pipe->pipetre = 0; | |
343 | pipe->pipetrn = 0; | |
344 | } | |
345 | } | |
346 | ||
347 | static struct r8a66597_device * | |
348 | get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb) | |
349 | { | |
350 | if (usb_pipedevice(urb->pipe) == 0) | |
351 | return &r8a66597->device0; | |
352 | ||
353 | return dev_get_drvdata(&urb->dev->dev); | |
354 | } | |
355 | ||
356 | static int make_r8a66597_device(struct r8a66597 *r8a66597, | |
357 | struct urb *urb, u8 addr) | |
358 | { | |
359 | struct r8a66597_device *dev; | |
360 | int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */ | |
361 | ||
e294531d | 362 | dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC); |
5d304358 YS |
363 | if (dev == NULL) |
364 | return -ENOMEM; | |
365 | ||
366 | dev_set_drvdata(&urb->dev->dev, dev); | |
367 | dev->udev = urb->dev; | |
368 | dev->address = addr; | |
369 | dev->usb_address = usb_address; | |
370 | dev->state = USB_STATE_ADDRESS; | |
371 | dev->ep_in_toggle = 0; | |
372 | dev->ep_out_toggle = 0; | |
373 | INIT_LIST_HEAD(&dev->device_list); | |
374 | list_add_tail(&dev->device_list, &r8a66597->child_device); | |
375 | ||
376 | get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port); | |
377 | if (!is_child_device(urb->dev->devpath)) | |
378 | r8a66597->root_hub[dev->root_port].dev = dev; | |
379 | ||
380 | set_devadd_reg(r8a66597, dev->address, | |
381 | get_r8a66597_usb_speed(urb->dev->speed), | |
382 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
383 | dev->hub_port, dev->root_port); | |
384 | ||
385 | return 0; | |
386 | } | |
387 | ||
388 | /* this function must be called with interrupt disabled */ | |
389 | static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) | |
390 | { | |
391 | u8 addr; /* R8A66597's address */ | |
392 | struct r8a66597_device *dev; | |
393 | ||
394 | if (is_hub_limit(urb->dev->devpath)) { | |
802f389a | 395 | dev_err(&urb->dev->dev, "External hub limit reached.\n"); |
5d304358 YS |
396 | return 0; |
397 | } | |
398 | ||
399 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
400 | if (dev && dev->state >= USB_STATE_ADDRESS) | |
401 | return dev->address; | |
402 | ||
403 | for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) { | |
404 | if (r8a66597->address_map & (1 << addr)) | |
405 | continue; | |
406 | ||
407 | dbg("alloc_address: r8a66597_addr=%d", addr); | |
408 | r8a66597->address_map |= 1 << addr; | |
409 | ||
410 | if (make_r8a66597_device(r8a66597, urb, addr) < 0) | |
411 | return 0; | |
412 | ||
413 | return addr; | |
414 | } | |
415 | ||
802f389a GKH |
416 | dev_err(&urb->dev->dev, |
417 | "cannot communicate with a USB device more than 10.(%x)\n", | |
418 | r8a66597->address_map); | |
5d304358 YS |
419 | |
420 | return 0; | |
421 | } | |
422 | ||
423 | /* this function must be called with interrupt disabled */ | |
424 | static void free_usb_address(struct r8a66597 *r8a66597, | |
425 | struct r8a66597_device *dev) | |
426 | { | |
427 | int port; | |
428 | ||
429 | if (!dev) | |
430 | return; | |
431 | ||
432 | dbg("free_addr: addr=%d", dev->address); | |
433 | ||
434 | dev->state = USB_STATE_DEFAULT; | |
435 | r8a66597->address_map &= ~(1 << dev->address); | |
436 | dev->address = 0; | |
437 | dev_set_drvdata(&dev->udev->dev, NULL); | |
438 | list_del(&dev->device_list); | |
439 | kfree(dev); | |
440 | ||
441 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
442 | if (r8a66597->root_hub[port].dev == dev) { | |
443 | r8a66597->root_hub[port].dev = NULL; | |
444 | break; | |
445 | } | |
446 | } | |
447 | } | |
448 | ||
449 | static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, | |
450 | u16 mask, u16 loop) | |
451 | { | |
452 | u16 tmp; | |
453 | int i = 0; | |
454 | ||
455 | do { | |
456 | tmp = r8a66597_read(r8a66597, reg); | |
457 | if (i++ > 1000000) { | |
802f389a GKH |
458 | printk(KERN_ERR "r8a66597: register%lx, loop %x " |
459 | "is timeout\n", reg, loop); | |
5d304358 YS |
460 | break; |
461 | } | |
462 | ndelay(1); | |
463 | } while ((tmp & mask) != loop); | |
464 | } | |
465 | ||
466 | /* this function must be called with interrupt disabled */ | |
467 | static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
468 | { | |
469 | u16 tmp; | |
470 | ||
471 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
472 | if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */ | |
473 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
474 | r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr); | |
475 | } | |
476 | ||
477 | /* this function must be called with interrupt disabled */ | |
478 | static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe) | |
479 | { | |
480 | u16 tmp; | |
481 | ||
482 | tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID; | |
483 | if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */ | |
484 | r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr); | |
485 | r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr); | |
486 | r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0); | |
487 | } | |
488 | ||
489 | /* this function must be called with interrupt disabled */ | |
490 | static void clear_all_buffer(struct r8a66597 *r8a66597, | |
491 | struct r8a66597_pipe *pipe) | |
492 | { | |
493 | u16 tmp; | |
494 | ||
495 | if (!pipe || pipe->info.pipenum == 0) | |
496 | return; | |
497 | ||
498 | pipe_stop(r8a66597, pipe); | |
499 | r8a66597_bset(r8a66597, ACLRM, pipe->pipectr); | |
500 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
501 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
502 | tmp = r8a66597_read(r8a66597, pipe->pipectr); | |
503 | r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr); | |
504 | } | |
505 | ||
506 | /* this function must be called with interrupt disabled */ | |
507 | static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597, | |
508 | struct r8a66597_pipe *pipe, int toggle) | |
509 | { | |
510 | if (toggle) | |
511 | r8a66597_bset(r8a66597, SQSET, pipe->pipectr); | |
512 | else | |
513 | r8a66597_bset(r8a66597, SQCLR, pipe->pipectr); | |
514 | } | |
515 | ||
516 | /* this function must be called with interrupt disabled */ | |
517 | static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum) | |
518 | { | |
519 | r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); | |
520 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); | |
521 | } | |
522 | ||
523 | /* this function must be called with interrupt disabled */ | |
524 | static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597, | |
525 | struct r8a66597_pipe *pipe) | |
526 | { | |
527 | cfifo_change(r8a66597, 0); | |
528 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL); | |
529 | r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL); | |
530 | ||
531 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE, | |
532 | pipe->fifosel); | |
533 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum); | |
534 | } | |
535 | ||
536 | static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep) | |
537 | { | |
538 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
539 | ||
540 | if (usb_pipeendpoint(urb->pipe) == 0) | |
541 | return 0; | |
542 | else | |
543 | return pipe->info.pipenum; | |
544 | } | |
545 | ||
546 | static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb) | |
547 | { | |
548 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
549 | ||
550 | return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address; | |
551 | } | |
552 | ||
553 | static unsigned short *get_toggle_pointer(struct r8a66597_device *dev, | |
554 | int urb_pipe) | |
555 | { | |
556 | if (!dev) | |
557 | return NULL; | |
558 | ||
559 | return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle; | |
560 | } | |
561 | ||
562 | /* this function must be called with interrupt disabled */ | |
563 | static void pipe_toggle_set(struct r8a66597 *r8a66597, | |
564 | struct r8a66597_pipe *pipe, | |
565 | struct urb *urb, int set) | |
566 | { | |
567 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
568 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
569 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
570 | ||
571 | if (!toggle) | |
572 | return; | |
573 | ||
574 | if (set) | |
575 | *toggle |= 1 << endpoint; | |
576 | else | |
577 | *toggle &= ~(1 << endpoint); | |
578 | } | |
579 | ||
580 | /* this function must be called with interrupt disabled */ | |
581 | static void pipe_toggle_save(struct r8a66597 *r8a66597, | |
582 | struct r8a66597_pipe *pipe, | |
583 | struct urb *urb) | |
584 | { | |
585 | if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON) | |
586 | pipe_toggle_set(r8a66597, pipe, urb, 1); | |
587 | else | |
588 | pipe_toggle_set(r8a66597, pipe, urb, 0); | |
589 | } | |
590 | ||
591 | /* this function must be called with interrupt disabled */ | |
592 | static void pipe_toggle_restore(struct r8a66597 *r8a66597, | |
593 | struct r8a66597_pipe *pipe, | |
594 | struct urb *urb) | |
595 | { | |
596 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
597 | unsigned char endpoint = usb_pipeendpoint(urb->pipe); | |
598 | unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); | |
599 | ||
f6ace2c9 YS |
600 | if (!toggle) |
601 | return; | |
602 | ||
5d304358 YS |
603 | r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); |
604 | } | |
605 | ||
606 | /* this function must be called with interrupt disabled */ | |
607 | static void pipe_buffer_setting(struct r8a66597 *r8a66597, | |
608 | struct r8a66597_pipe_info *info) | |
609 | { | |
610 | u16 val = 0; | |
611 | ||
612 | if (info->pipenum == 0) | |
613 | return; | |
614 | ||
615 | r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
616 | r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum)); | |
617 | r8a66597_write(r8a66597, info->pipenum, PIPESEL); | |
618 | if (!info->dir_in) | |
619 | val |= R8A66597_DIR; | |
620 | if (info->type == R8A66597_BULK && info->dir_in) | |
621 | val |= R8A66597_DBLB | R8A66597_SHTNAK; | |
622 | val |= info->type | info->epnum; | |
623 | r8a66597_write(r8a66597, val, PIPECFG); | |
624 | ||
625 | r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum), | |
626 | PIPEBUF); | |
627 | r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket, | |
628 | PIPEMAXP); | |
5d304358 YS |
629 | r8a66597_write(r8a66597, info->interval, PIPEPERI); |
630 | } | |
631 | ||
5d304358 YS |
632 | /* this function must be called with interrupt disabled */ |
633 | static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
634 | { | |
635 | struct r8a66597_pipe_info *info; | |
636 | struct urb *urb = td->urb; | |
637 | ||
638 | if (td->pipenum > 0) { | |
639 | info = &td->pipe->info; | |
640 | cfifo_change(r8a66597, 0); | |
641 | pipe_buffer_setting(r8a66597, info); | |
642 | ||
643 | if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
644 | usb_pipeout(urb->pipe)) && | |
645 | !usb_pipecontrol(urb->pipe)) { | |
646 | r8a66597_pipe_toggle(r8a66597, td->pipe, 0); | |
647 | pipe_toggle_set(r8a66597, td->pipe, urb, 0); | |
648 | clear_all_buffer(r8a66597, td->pipe); | |
649 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), | |
650 | usb_pipeout(urb->pipe), 1); | |
651 | } | |
652 | pipe_toggle_restore(r8a66597, td->pipe, urb); | |
653 | } | |
654 | } | |
655 | ||
656 | /* this function must be called with interrupt disabled */ | |
657 | static u16 get_empty_pipenum(struct r8a66597 *r8a66597, | |
658 | struct usb_endpoint_descriptor *ep) | |
659 | { | |
660 | u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min; | |
661 | ||
662 | memset(array, 0, sizeof(array)); | |
2e0fe709 | 663 | switch (usb_endpoint_type(ep)) { |
e294531d | 664 | case USB_ENDPOINT_XFER_BULK: |
2e0fe709 | 665 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
666 | array[i++] = 4; |
667 | else { | |
668 | array[i++] = 3; | |
669 | array[i++] = 5; | |
670 | } | |
e294531d YS |
671 | break; |
672 | case USB_ENDPOINT_XFER_INT: | |
2e0fe709 | 673 | if (usb_endpoint_dir_in(ep)) { |
5d304358 YS |
674 | array[i++] = 6; |
675 | array[i++] = 7; | |
676 | array[i++] = 8; | |
677 | } else | |
678 | array[i++] = 9; | |
e294531d YS |
679 | break; |
680 | case USB_ENDPOINT_XFER_ISOC: | |
2e0fe709 | 681 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
682 | array[i++] = 2; |
683 | else | |
684 | array[i++] = 1; | |
e294531d YS |
685 | break; |
686 | default: | |
802f389a | 687 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
e294531d YS |
688 | return 0; |
689 | } | |
5d304358 YS |
690 | |
691 | i = 1; | |
692 | min = array[0]; | |
693 | while (array[i] != 0) { | |
694 | if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]]) | |
695 | min = array[i]; | |
696 | i++; | |
697 | } | |
698 | ||
699 | return min; | |
700 | } | |
701 | ||
702 | static u16 get_r8a66597_type(__u8 type) | |
703 | { | |
704 | u16 r8a66597_type; | |
705 | ||
e294531d | 706 | switch (type) { |
5d304358 YS |
707 | case USB_ENDPOINT_XFER_BULK: |
708 | r8a66597_type = R8A66597_BULK; | |
709 | break; | |
710 | case USB_ENDPOINT_XFER_INT: | |
711 | r8a66597_type = R8A66597_INT; | |
712 | break; | |
713 | case USB_ENDPOINT_XFER_ISOC: | |
714 | r8a66597_type = R8A66597_ISO; | |
715 | break; | |
716 | default: | |
802f389a | 717 | printk(KERN_ERR "r8a66597: Illegal type\n"); |
5d304358 YS |
718 | r8a66597_type = 0x0000; |
719 | break; | |
720 | } | |
721 | ||
722 | return r8a66597_type; | |
723 | } | |
724 | ||
725 | static u16 get_bufnum(u16 pipenum) | |
726 | { | |
727 | u16 bufnum = 0; | |
728 | ||
729 | if (pipenum == 0) | |
730 | bufnum = 0; | |
731 | else if (check_bulk_or_isoc(pipenum)) | |
732 | bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2; | |
733 | else if (check_interrupt(pipenum)) | |
734 | bufnum = 4 + (pipenum - 6); | |
735 | else | |
802f389a | 736 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
737 | |
738 | return bufnum; | |
739 | } | |
740 | ||
741 | static u16 get_buf_bsize(u16 pipenum) | |
742 | { | |
743 | u16 buf_bsize = 0; | |
744 | ||
745 | if (pipenum == 0) | |
746 | buf_bsize = 3; | |
747 | else if (check_bulk_or_isoc(pipenum)) | |
748 | buf_bsize = R8A66597_BUF_BSIZE - 1; | |
749 | else if (check_interrupt(pipenum)) | |
750 | buf_bsize = 0; | |
751 | else | |
802f389a | 752 | printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); |
5d304358 YS |
753 | |
754 | return buf_bsize; | |
755 | } | |
756 | ||
757 | /* this function must be called with interrupt disabled */ | |
758 | static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, | |
759 | struct r8a66597_device *dev, | |
760 | struct r8a66597_pipe *pipe, | |
761 | struct urb *urb) | |
762 | { | |
9424ea29 | 763 | #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) |
5d304358 YS |
764 | int i; |
765 | struct r8a66597_pipe_info *info = &pipe->info; | |
766 | ||
767 | if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) { | |
768 | for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) { | |
769 | if ((r8a66597->dma_map & (1 << i)) != 0) | |
770 | continue; | |
771 | ||
5909f6ea GKH |
772 | dev_info(&dev->udev->dev, |
773 | "address %d, EndpointAddress 0x%02x use " | |
774 | "DMA FIFO\n", usb_pipedevice(urb->pipe), | |
775 | info->dir_in ? | |
776 | USB_ENDPOINT_DIR_MASK + info->epnum | |
777 | : info->epnum); | |
5d304358 YS |
778 | |
779 | r8a66597->dma_map |= 1 << i; | |
780 | dev->dma_map |= 1 << i; | |
781 | set_pipe_reg_addr(pipe, i); | |
782 | ||
783 | cfifo_change(r8a66597, 0); | |
784 | r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, | |
785 | MBW | CURPIPE, pipe->fifosel); | |
786 | ||
787 | r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, | |
788 | pipe->info.pipenum); | |
789 | r8a66597_bset(r8a66597, BCLR, pipe->fifoctr); | |
790 | break; | |
791 | } | |
792 | } | |
9424ea29 | 793 | #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ |
5d304358 YS |
794 | } |
795 | ||
796 | /* this function must be called with interrupt disabled */ | |
797 | static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, | |
798 | struct usb_host_endpoint *hep, | |
799 | struct r8a66597_pipe_info *info) | |
800 | { | |
801 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
802 | struct r8a66597_pipe *pipe = hep->hcpriv; | |
803 | ||
804 | dbg("enable_pipe:"); | |
805 | ||
806 | pipe->info = *info; | |
807 | set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA); | |
808 | r8a66597->pipe_cnt[pipe->info.pipenum]++; | |
809 | dev->pipe_cnt[pipe->info.pipenum]++; | |
810 | ||
811 | enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); | |
812 | } | |
813 | ||
814 | /* this function must be called with interrupt disabled */ | |
815 | static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) | |
816 | { | |
817 | struct r8a66597_td *td, *next; | |
818 | struct urb *urb; | |
819 | struct list_head *list = &r8a66597->pipe_queue[pipenum]; | |
820 | ||
821 | if (list_empty(list)) | |
822 | return; | |
823 | ||
824 | list_for_each_entry_safe(td, next, list, queue) { | |
825 | if (!td) | |
826 | continue; | |
827 | if (td->address != address) | |
828 | continue; | |
829 | ||
830 | urb = td->urb; | |
831 | list_del(&td->queue); | |
832 | kfree(td); | |
833 | ||
834 | if (urb) { | |
e9df41c5 AS |
835 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), |
836 | urb); | |
837 | ||
5d304358 | 838 | spin_unlock(&r8a66597->lock); |
4a00027d AS |
839 | usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, |
840 | -ENODEV); | |
5d304358 YS |
841 | spin_lock(&r8a66597->lock); |
842 | } | |
843 | break; | |
844 | } | |
845 | } | |
846 | ||
847 | /* this function must be called with interrupt disabled */ | |
848 | static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, | |
849 | struct r8a66597_device *dev) | |
850 | { | |
851 | int check_ep0 = 0; | |
852 | u16 pipenum; | |
853 | ||
854 | if (!dev) | |
855 | return; | |
856 | ||
857 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
858 | if (!dev->pipe_cnt[pipenum]) | |
859 | continue; | |
860 | ||
861 | if (!check_ep0) { | |
862 | check_ep0 = 1; | |
863 | force_dequeue(r8a66597, 0, dev->address); | |
864 | } | |
865 | ||
866 | r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum]; | |
867 | dev->pipe_cnt[pipenum] = 0; | |
868 | force_dequeue(r8a66597, pipenum, dev->address); | |
869 | } | |
870 | ||
871 | dbg("disable_pipe"); | |
872 | ||
873 | r8a66597->dma_map &= ~(dev->dma_map); | |
874 | dev->dma_map = 0; | |
875 | } | |
876 | ||
397f519a YS |
877 | static u16 get_interval(struct urb *urb, __u8 interval) |
878 | { | |
879 | u16 time = 1; | |
880 | int i; | |
881 | ||
882 | if (urb->dev->speed == USB_SPEED_HIGH) { | |
883 | if (interval > IITV) | |
884 | time = IITV; | |
885 | else | |
886 | time = interval ? interval - 1 : 0; | |
887 | } else { | |
888 | if (interval > 128) { | |
889 | time = IITV; | |
890 | } else { | |
891 | /* calculate the nearest value for PIPEPERI */ | |
892 | for (i = 0; i < 7; i++) { | |
893 | if ((1 << i) < interval && | |
894 | (1 << (i + 1) > interval)) | |
895 | time = 1 << i; | |
896 | } | |
897 | } | |
898 | } | |
899 | ||
900 | return time; | |
901 | } | |
902 | ||
6d879107 YS |
903 | static unsigned long get_timer_interval(struct urb *urb, __u8 interval) |
904 | { | |
905 | __u8 i; | |
906 | unsigned long time = 1; | |
907 | ||
908 | if (usb_pipeisoc(urb->pipe)) | |
909 | return 0; | |
910 | ||
911 | if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) { | |
912 | for (i = 0; i < (interval - 1); i++) | |
913 | time *= 2; | |
914 | time = time * 125 / 1000; /* uSOF -> msec */ | |
915 | } else { | |
916 | time = interval; | |
917 | } | |
918 | ||
919 | return time; | |
920 | } | |
921 | ||
5d304358 YS |
922 | /* this function must be called with interrupt disabled */ |
923 | static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, | |
924 | struct usb_host_endpoint *hep, | |
925 | struct usb_endpoint_descriptor *ep) | |
926 | { | |
927 | struct r8a66597_pipe_info info; | |
928 | ||
929 | info.pipenum = get_empty_pipenum(r8a66597, ep); | |
930 | info.address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
2e0fe709 | 931 | info.epnum = usb_endpoint_num(ep); |
05eac910 | 932 | info.maxpacket = le16_to_cpu(ep->wMaxPacketSize); |
2e0fe709 | 933 | info.type = get_r8a66597_type(usb_endpoint_type(ep)); |
5d304358 YS |
934 | info.bufnum = get_bufnum(info.pipenum); |
935 | info.buf_bsize = get_buf_bsize(info.pipenum); | |
6d879107 YS |
936 | if (info.type == R8A66597_BULK) { |
937 | info.interval = 0; | |
938 | info.timer_interval = 0; | |
939 | } else { | |
397f519a | 940 | info.interval = get_interval(urb, ep->bInterval); |
6d879107 YS |
941 | info.timer_interval = get_timer_interval(urb, ep->bInterval); |
942 | } | |
2e0fe709 | 943 | if (usb_endpoint_dir_in(ep)) |
5d304358 YS |
944 | info.dir_in = 1; |
945 | else | |
946 | info.dir_in = 0; | |
947 | ||
948 | enable_r8a66597_pipe(r8a66597, urb, hep, &info); | |
949 | } | |
950 | ||
951 | static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
952 | { | |
953 | struct r8a66597_device *dev; | |
954 | ||
955 | dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
956 | dev->state = USB_STATE_CONFIGURED; | |
957 | } | |
958 | ||
959 | static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb, | |
960 | u16 pipenum) | |
961 | { | |
962 | if (pipenum == 0 && usb_pipeout(urb->pipe)) | |
963 | enable_irq_empty(r8a66597, pipenum); | |
964 | else | |
965 | enable_irq_ready(r8a66597, pipenum); | |
966 | ||
967 | if (!usb_pipeisoc(urb->pipe)) | |
968 | enable_irq_nrdy(r8a66597, pipenum); | |
969 | } | |
970 | ||
971 | static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) | |
972 | { | |
973 | disable_irq_ready(r8a66597, pipenum); | |
974 | disable_irq_nrdy(r8a66597, pipenum); | |
975 | } | |
976 | ||
54d0be9e YS |
977 | static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) |
978 | { | |
979 | mod_timer(&r8a66597->rh_timer, | |
980 | jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); | |
981 | } | |
982 | ||
983 | static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, | |
984 | int connect) | |
985 | { | |
986 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
987 | ||
988 | rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
989 | rh->scount = R8A66597_MAX_SAMPLING; | |
990 | if (connect) | |
991 | rh->port |= 1 << USB_PORT_FEAT_CONNECTION; | |
992 | else | |
993 | rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION); | |
994 | rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION; | |
995 | ||
996 | r8a66597_root_hub_start_polling(r8a66597); | |
997 | } | |
998 | ||
5d304358 | 999 | /* this function must be called with interrupt disabled */ |
29fab0cd YS |
1000 | static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, |
1001 | u16 syssts) | |
5d304358 | 1002 | { |
29fab0cd | 1003 | if (syssts == SE0) { |
54d0be9e | 1004 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); |
29fab0cd YS |
1005 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); |
1006 | return; | |
1007 | } | |
1008 | ||
1009 | if (syssts == FS_JSTS) | |
1010 | r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); | |
1011 | else if (syssts == LS_JSTS) | |
1012 | r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); | |
1013 | ||
e294531d | 1014 | r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); |
5d304358 | 1015 | r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); |
e1e609be YS |
1016 | |
1017 | if (r8a66597->bus_suspended) | |
1018 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
5d304358 YS |
1019 | } |
1020 | ||
1021 | /* this function must be called with interrupt disabled */ | |
1022 | static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) | |
1023 | { | |
1024 | u16 speed = get_rh_usb_speed(r8a66597, port); | |
1025 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1026 | ||
1027 | if (speed == HSMODE) | |
1028 | rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); | |
1029 | else if (speed == LSMODE) | |
1030 | rh->port |= (1 << USB_PORT_FEAT_LOWSPEED); | |
1031 | ||
1032 | rh->port &= ~(1 << USB_PORT_FEAT_RESET); | |
1033 | rh->port |= 1 << USB_PORT_FEAT_ENABLE; | |
1034 | } | |
1035 | ||
1036 | /* this function must be called with interrupt disabled */ | |
1037 | static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) | |
1038 | { | |
1039 | struct r8a66597_device *dev = r8a66597->root_hub[port].dev; | |
1040 | ||
5d304358 YS |
1041 | disable_r8a66597_pipe_all(r8a66597, dev); |
1042 | free_usb_address(r8a66597, dev); | |
1043 | ||
54d0be9e | 1044 | start_root_hub_sampling(r8a66597, port, 0); |
5d304358 YS |
1045 | } |
1046 | ||
1047 | /* this function must be called with interrupt disabled */ | |
1048 | static void prepare_setup_packet(struct r8a66597 *r8a66597, | |
1049 | struct r8a66597_td *td) | |
1050 | { | |
1051 | int i; | |
fd05e720 | 1052 | __le16 *p = (__le16 *)td->urb->setup_packet; |
5d304358 YS |
1053 | unsigned long setup_addr = USBREQ; |
1054 | ||
1055 | r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket, | |
1056 | DCPMAXP); | |
e294531d | 1057 | r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); |
5d304358 YS |
1058 | |
1059 | for (i = 0; i < 4; i++) { | |
fd05e720 | 1060 | r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); |
5d304358 YS |
1061 | setup_addr += 2; |
1062 | } | |
1063 | r8a66597_write(r8a66597, SUREQ, DCPCTR); | |
1064 | } | |
1065 | ||
1066 | /* this function must be called with interrupt disabled */ | |
1067 | static void prepare_packet_read(struct r8a66597 *r8a66597, | |
1068 | struct r8a66597_td *td) | |
1069 | { | |
1070 | struct urb *urb = td->urb; | |
1071 | ||
1072 | if (usb_pipecontrol(urb->pipe)) { | |
1073 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1074 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1075 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1076 | if (urb->actual_length == 0) { | |
1077 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1078 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1079 | } | |
1080 | pipe_irq_disable(r8a66597, td->pipenum); | |
1081 | pipe_start(r8a66597, td->pipe); | |
1082 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1083 | } else { | |
1084 | if (urb->actual_length == 0) { | |
1085 | pipe_irq_disable(r8a66597, td->pipenum); | |
1086 | pipe_setting(r8a66597, td); | |
1087 | pipe_stop(r8a66597, td->pipe); | |
e294531d | 1088 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1089 | |
1090 | if (td->pipe->pipetre) { | |
1091 | r8a66597_write(r8a66597, TRCLR, | |
e294531d | 1092 | td->pipe->pipetre); |
5d304358 | 1093 | r8a66597_write(r8a66597, |
dfa5ec79 JL |
1094 | DIV_ROUND_UP |
1095 | (urb->transfer_buffer_length, | |
1096 | td->maxpacket), | |
e294531d | 1097 | td->pipe->pipetrn); |
5d304358 | 1098 | r8a66597_bset(r8a66597, TRENB, |
e294531d | 1099 | td->pipe->pipetre); |
5d304358 YS |
1100 | } |
1101 | ||
1102 | pipe_start(r8a66597, td->pipe); | |
1103 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1104 | } | |
1105 | } | |
1106 | } | |
1107 | ||
1108 | /* this function must be called with interrupt disabled */ | |
1109 | static void prepare_packet_write(struct r8a66597 *r8a66597, | |
1110 | struct r8a66597_td *td) | |
1111 | { | |
1112 | u16 tmp; | |
1113 | struct urb *urb = td->urb; | |
1114 | ||
1115 | if (usb_pipecontrol(urb->pipe)) { | |
1116 | pipe_stop(r8a66597, td->pipe); | |
1117 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1118 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1119 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1120 | if (urb->actual_length == 0) { | |
1121 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
1122 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
1123 | } | |
1124 | } else { | |
1125 | if (urb->actual_length == 0) | |
1126 | pipe_setting(r8a66597, td); | |
1127 | if (td->pipe->pipetre) | |
1128 | r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre); | |
1129 | } | |
e294531d | 1130 | r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS); |
5d304358 YS |
1131 | |
1132 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1133 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1134 | if (unlikely((tmp & FRDY) == 0)) | |
1135 | pipe_irq_enable(r8a66597, urb, td->pipenum); | |
1136 | else | |
1137 | packet_write(r8a66597, td->pipenum); | |
1138 | pipe_start(r8a66597, td->pipe); | |
1139 | } | |
1140 | ||
1141 | /* this function must be called with interrupt disabled */ | |
1142 | static void prepare_status_packet(struct r8a66597 *r8a66597, | |
1143 | struct r8a66597_td *td) | |
1144 | { | |
1145 | struct urb *urb = td->urb; | |
1146 | ||
1147 | r8a66597_pipe_toggle(r8a66597, td->pipe, 1); | |
e294531d | 1148 | pipe_stop(r8a66597, td->pipe); |
5d304358 YS |
1149 | |
1150 | if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) { | |
1151 | r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); | |
1152 | r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); | |
1153 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
e294531d | 1154 | r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); |
9424ea29 | 1155 | r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); |
5d304358 YS |
1156 | enable_irq_empty(r8a66597, 0); |
1157 | } else { | |
1158 | r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); | |
1159 | r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); | |
1160 | r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); | |
1161 | r8a66597_write(r8a66597, BCLR, CFIFOCTR); | |
5d304358 YS |
1162 | enable_irq_ready(r8a66597, 0); |
1163 | } | |
1164 | enable_irq_nrdy(r8a66597, 0); | |
1165 | pipe_start(r8a66597, td->pipe); | |
1166 | } | |
1167 | ||
e3a09051 YS |
1168 | static int is_set_address(unsigned char *setup_packet) |
1169 | { | |
1170 | if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) && | |
1171 | setup_packet[1] == USB_REQ_SET_ADDRESS) | |
1172 | return 1; | |
1173 | else | |
1174 | return 0; | |
1175 | } | |
1176 | ||
5d304358 YS |
1177 | /* this function must be called with interrupt disabled */ |
1178 | static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1179 | { | |
1180 | BUG_ON(!td); | |
1181 | ||
1182 | switch (td->type) { | |
1183 | case USB_PID_SETUP: | |
e3a09051 | 1184 | if (is_set_address(td->urb->setup_packet)) { |
5d304358 YS |
1185 | td->set_address = 1; |
1186 | td->urb->setup_packet[2] = alloc_usb_address(r8a66597, | |
1187 | td->urb); | |
1188 | if (td->urb->setup_packet[2] == 0) | |
1189 | return -EPIPE; | |
1190 | } | |
1191 | prepare_setup_packet(r8a66597, td); | |
1192 | break; | |
1193 | case USB_PID_IN: | |
1194 | prepare_packet_read(r8a66597, td); | |
1195 | break; | |
1196 | case USB_PID_OUT: | |
1197 | prepare_packet_write(r8a66597, td); | |
1198 | break; | |
1199 | case USB_PID_ACK: | |
1200 | prepare_status_packet(r8a66597, td); | |
1201 | break; | |
1202 | default: | |
802f389a | 1203 | printk(KERN_ERR "r8a66597: invalid type.\n"); |
5d304358 YS |
1204 | break; |
1205 | } | |
1206 | ||
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb) | |
1211 | { | |
1212 | if (usb_pipeisoc(urb->pipe)) { | |
1213 | if (urb->number_of_packets == td->iso_cnt) | |
1214 | return 1; | |
1215 | } | |
1216 | ||
1217 | /* control or bulk or interrupt */ | |
1218 | if ((urb->transfer_buffer_length <= urb->actual_length) || | |
1219 | (td->short_packet) || (td->zero_packet)) | |
1220 | return 1; | |
1221 | ||
1222 | return 0; | |
1223 | } | |
1224 | ||
1225 | /* this function must be called with interrupt disabled */ | |
1226 | static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td) | |
1227 | { | |
1228 | unsigned long time; | |
1229 | ||
1230 | BUG_ON(!td); | |
1231 | ||
1232 | if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) && | |
1233 | !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) { | |
1234 | r8a66597->timeout_map |= 1 << td->pipenum; | |
1235 | switch (usb_pipetype(td->urb->pipe)) { | |
1236 | case PIPE_INTERRUPT: | |
1237 | case PIPE_ISOCHRONOUS: | |
1238 | time = 30; | |
1239 | break; | |
1240 | default: | |
1241 | time = 300; | |
1242 | break; | |
1243 | } | |
1244 | ||
1245 | mod_timer(&r8a66597->td_timer[td->pipenum], | |
1246 | jiffies + msecs_to_jiffies(time)); | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | /* this function must be called with interrupt disabled */ | |
dfd1e537 | 1251 | static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td, |
888fda47 | 1252 | u16 pipenum, struct urb *urb, int status) |
dfd1e537 | 1253 | __releases(r8a66597->lock) __acquires(r8a66597->lock) |
5d304358 YS |
1254 | { |
1255 | int restart = 0; | |
1256 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
1257 | ||
1258 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1259 | ||
1260 | if (likely(td)) { | |
888fda47 | 1261 | if (td->set_address && (status != 0 || urb->unlinked)) |
5d304358 YS |
1262 | r8a66597->address_map &= ~(1 << urb->setup_packet[2]); |
1263 | ||
1264 | pipe_toggle_save(r8a66597, td->pipe, urb); | |
1265 | list_del(&td->queue); | |
1266 | kfree(td); | |
1267 | } | |
1268 | ||
1269 | if (!list_empty(&r8a66597->pipe_queue[pipenum])) | |
1270 | restart = 1; | |
1271 | ||
1272 | if (likely(urb)) { | |
1273 | if (usb_pipeisoc(urb->pipe)) | |
1274 | urb->start_frame = r8a66597_get_frame(hcd); | |
1275 | ||
e9df41c5 | 1276 | usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); |
5d304358 | 1277 | spin_unlock(&r8a66597->lock); |
4a00027d | 1278 | usb_hcd_giveback_urb(hcd, urb, status); |
5d304358 YS |
1279 | spin_lock(&r8a66597->lock); |
1280 | } | |
1281 | ||
1282 | if (restart) { | |
1283 | td = r8a66597_get_td(r8a66597, pipenum); | |
1284 | if (unlikely(!td)) | |
1285 | return; | |
1286 | ||
1287 | start_transfer(r8a66597, td); | |
1288 | set_td_timer(r8a66597, td); | |
1289 | } | |
1290 | } | |
1291 | ||
5d304358 YS |
1292 | static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) |
1293 | { | |
1294 | u16 tmp; | |
1295 | int rcv_len, bufsize, urb_len, size; | |
1296 | u16 *buf; | |
1297 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1298 | struct urb *urb; | |
1299 | int finish = 0; | |
dfd1e537 | 1300 | int status = 0; |
5d304358 YS |
1301 | |
1302 | if (unlikely(!td)) | |
1303 | return; | |
1304 | urb = td->urb; | |
1305 | ||
1306 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1307 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1308 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1309 | pipe_stop(r8a66597, td->pipe); |
1310 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1311 | printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); |
888fda47 | 1312 | finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); |
5d304358 YS |
1313 | return; |
1314 | } | |
1315 | ||
1316 | /* prepare parameters */ | |
1317 | rcv_len = tmp & DTLN; | |
5d304358 YS |
1318 | if (usb_pipeisoc(urb->pipe)) { |
1319 | buf = (u16 *)(urb->transfer_buffer + | |
1320 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1321 | urb_len = urb->iso_frame_desc[td->iso_cnt].length; | |
1322 | } else { | |
1323 | buf = (void *)urb->transfer_buffer + urb->actual_length; | |
1324 | urb_len = urb->transfer_buffer_length - urb->actual_length; | |
1325 | } | |
dfd1e537 AS |
1326 | bufsize = min(urb_len, (int) td->maxpacket); |
1327 | if (rcv_len <= bufsize) { | |
1328 | size = rcv_len; | |
1329 | } else { | |
1330 | size = bufsize; | |
1331 | status = -EOVERFLOW; | |
1332 | finish = 1; | |
1333 | } | |
5d304358 YS |
1334 | |
1335 | /* update parameters */ | |
1336 | urb->actual_length += size; | |
1337 | if (rcv_len == 0) | |
1338 | td->zero_packet = 1; | |
dfd1e537 | 1339 | if (rcv_len < bufsize) { |
5d304358 | 1340 | td->short_packet = 1; |
5d304358 YS |
1341 | } |
1342 | if (usb_pipeisoc(urb->pipe)) { | |
1343 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
dfd1e537 | 1344 | urb->iso_frame_desc[td->iso_cnt].status = status; |
5d304358 | 1345 | td->iso_cnt++; |
dfd1e537 | 1346 | finish = 0; |
5d304358 YS |
1347 | } |
1348 | ||
1349 | /* check transfer finish */ | |
b0d9efba | 1350 | if (finish || check_transfer_finish(td, urb)) { |
5d304358 YS |
1351 | pipe_stop(r8a66597, td->pipe); |
1352 | pipe_irq_disable(r8a66597, pipenum); | |
1353 | finish = 1; | |
1354 | } | |
1355 | ||
1356 | /* read fifo */ | |
1357 | if (urb->transfer_buffer) { | |
1358 | if (size == 0) | |
1359 | r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr); | |
1360 | else | |
1361 | r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr, | |
1362 | buf, size); | |
1363 | } | |
1364 | ||
888fda47 AS |
1365 | if (finish && pipenum != 0) |
1366 | finish_request(r8a66597, td, pipenum, urb, status); | |
5d304358 YS |
1367 | } |
1368 | ||
1369 | static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) | |
1370 | { | |
1371 | u16 tmp; | |
1372 | int bufsize, size; | |
1373 | u16 *buf; | |
1374 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1375 | struct urb *urb; | |
1376 | ||
1377 | if (unlikely(!td)) | |
1378 | return; | |
1379 | urb = td->urb; | |
1380 | ||
1381 | fifo_change_from_pipe(r8a66597, td->pipe); | |
1382 | tmp = r8a66597_read(r8a66597, td->pipe->fifoctr); | |
1383 | if (unlikely((tmp & FRDY) == 0)) { | |
5d304358 YS |
1384 | pipe_stop(r8a66597, td->pipe); |
1385 | pipe_irq_disable(r8a66597, pipenum); | |
802f389a | 1386 | printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); |
888fda47 | 1387 | finish_request(r8a66597, td, pipenum, urb, -EPIPE); |
5d304358 YS |
1388 | return; |
1389 | } | |
1390 | ||
1391 | /* prepare parameters */ | |
1392 | bufsize = td->maxpacket; | |
1393 | if (usb_pipeisoc(urb->pipe)) { | |
1394 | buf = (u16 *)(urb->transfer_buffer + | |
1395 | urb->iso_frame_desc[td->iso_cnt].offset); | |
1396 | size = min(bufsize, | |
1397 | (int)urb->iso_frame_desc[td->iso_cnt].length); | |
1398 | } else { | |
1399 | buf = (u16 *)(urb->transfer_buffer + urb->actual_length); | |
16e2e5f6 | 1400 | size = min_t(u32, bufsize, |
5d304358 YS |
1401 | urb->transfer_buffer_length - urb->actual_length); |
1402 | } | |
1403 | ||
1404 | /* write fifo */ | |
1405 | if (pipenum > 0) | |
e294531d | 1406 | r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); |
5d304358 YS |
1407 | if (urb->transfer_buffer) { |
1408 | r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); | |
1409 | if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) | |
1410 | r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); | |
1411 | } | |
1412 | ||
1413 | /* update parameters */ | |
1414 | urb->actual_length += size; | |
1415 | if (usb_pipeisoc(urb->pipe)) { | |
1416 | urb->iso_frame_desc[td->iso_cnt].actual_length = size; | |
1417 | urb->iso_frame_desc[td->iso_cnt].status = 0; | |
1418 | td->iso_cnt++; | |
1419 | } | |
1420 | ||
1421 | /* check transfer finish */ | |
1422 | if (check_transfer_finish(td, urb)) { | |
1423 | disable_irq_ready(r8a66597, pipenum); | |
1424 | enable_irq_empty(r8a66597, pipenum); | |
1425 | if (!usb_pipeisoc(urb->pipe)) | |
1426 | enable_irq_nrdy(r8a66597, pipenum); | |
1427 | } else | |
1428 | pipe_irq_enable(r8a66597, urb, pipenum); | |
1429 | } | |
1430 | ||
1431 | ||
888fda47 | 1432 | static void check_next_phase(struct r8a66597 *r8a66597, int status) |
5d304358 YS |
1433 | { |
1434 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0); | |
1435 | struct urb *urb; | |
1436 | u8 finish = 0; | |
1437 | ||
1438 | if (unlikely(!td)) | |
1439 | return; | |
1440 | urb = td->urb; | |
1441 | ||
1442 | switch (td->type) { | |
1443 | case USB_PID_IN: | |
1444 | case USB_PID_OUT: | |
5d304358 YS |
1445 | if (check_transfer_finish(td, urb)) |
1446 | td->type = USB_PID_ACK; | |
1447 | break; | |
1448 | case USB_PID_SETUP: | |
eb231054 | 1449 | if (urb->transfer_buffer_length == urb->actual_length) |
5d304358 | 1450 | td->type = USB_PID_ACK; |
eb231054 | 1451 | else if (usb_pipeout(urb->pipe)) |
5d304358 YS |
1452 | td->type = USB_PID_OUT; |
1453 | else | |
1454 | td->type = USB_PID_IN; | |
1455 | break; | |
1456 | case USB_PID_ACK: | |
1457 | finish = 1; | |
5d304358 YS |
1458 | break; |
1459 | } | |
1460 | ||
888fda47 AS |
1461 | if (finish || status != 0 || urb->unlinked) |
1462 | finish_request(r8a66597, td, 0, urb, status); | |
5d304358 YS |
1463 | else |
1464 | start_transfer(r8a66597, td); | |
1465 | } | |
1466 | ||
888fda47 | 1467 | static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum) |
5d304358 YS |
1468 | { |
1469 | struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum); | |
1470 | ||
888fda47 | 1471 | if (td) { |
5d304358 YS |
1472 | u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID; |
1473 | ||
1474 | if (pid == PID_NAK) | |
888fda47 | 1475 | return -ECONNRESET; |
5d304358 | 1476 | else |
888fda47 | 1477 | return -EPIPE; |
5d304358 | 1478 | } |
888fda47 | 1479 | return 0; |
5d304358 YS |
1480 | } |
1481 | ||
1482 | static void irq_pipe_ready(struct r8a66597 *r8a66597) | |
1483 | { | |
1484 | u16 check; | |
1485 | u16 pipenum; | |
1486 | u16 mask; | |
1487 | struct r8a66597_td *td; | |
1488 | ||
1489 | mask = r8a66597_read(r8a66597, BRDYSTS) | |
1490 | & r8a66597_read(r8a66597, BRDYENB); | |
e294531d | 1491 | r8a66597_write(r8a66597, ~mask, BRDYSTS); |
5d304358 YS |
1492 | if (mask & BRDY0) { |
1493 | td = r8a66597_get_td(r8a66597, 0); | |
1494 | if (td && td->type == USB_PID_IN) | |
1495 | packet_read(r8a66597, 0); | |
1496 | else | |
1497 | pipe_irq_disable(r8a66597, 0); | |
888fda47 | 1498 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1499 | } |
1500 | ||
1501 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1502 | check = 1 << pipenum; | |
1503 | if (mask & check) { | |
1504 | td = r8a66597_get_td(r8a66597, pipenum); | |
1505 | if (unlikely(!td)) | |
1506 | continue; | |
1507 | ||
1508 | if (td->type == USB_PID_IN) | |
1509 | packet_read(r8a66597, pipenum); | |
1510 | else if (td->type == USB_PID_OUT) | |
1511 | packet_write(r8a66597, pipenum); | |
1512 | } | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | static void irq_pipe_empty(struct r8a66597 *r8a66597) | |
1517 | { | |
1518 | u16 tmp; | |
1519 | u16 check; | |
1520 | u16 pipenum; | |
1521 | u16 mask; | |
1522 | struct r8a66597_td *td; | |
1523 | ||
1524 | mask = r8a66597_read(r8a66597, BEMPSTS) | |
1525 | & r8a66597_read(r8a66597, BEMPENB); | |
e294531d | 1526 | r8a66597_write(r8a66597, ~mask, BEMPSTS); |
5d304358 YS |
1527 | if (mask & BEMP0) { |
1528 | cfifo_change(r8a66597, 0); | |
1529 | td = r8a66597_get_td(r8a66597, 0); | |
1530 | if (td && td->type != USB_PID_OUT) | |
1531 | disable_irq_empty(r8a66597, 0); | |
888fda47 | 1532 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1533 | } |
1534 | ||
1535 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1536 | check = 1 << pipenum; | |
1537 | if (mask & check) { | |
1538 | struct r8a66597_td *td; | |
1539 | td = r8a66597_get_td(r8a66597, pipenum); | |
1540 | if (unlikely(!td)) | |
1541 | continue; | |
1542 | ||
1543 | tmp = r8a66597_read(r8a66597, td->pipe->pipectr); | |
1544 | if ((tmp & INBUFM) == 0) { | |
1545 | disable_irq_empty(r8a66597, pipenum); | |
1546 | pipe_irq_disable(r8a66597, pipenum); | |
888fda47 AS |
1547 | finish_request(r8a66597, td, pipenum, td->urb, |
1548 | 0); | |
5d304358 YS |
1549 | } |
1550 | } | |
1551 | } | |
1552 | } | |
1553 | ||
1554 | static void irq_pipe_nrdy(struct r8a66597 *r8a66597) | |
1555 | { | |
1556 | u16 check; | |
1557 | u16 pipenum; | |
1558 | u16 mask; | |
888fda47 | 1559 | int status; |
5d304358 YS |
1560 | |
1561 | mask = r8a66597_read(r8a66597, NRDYSTS) | |
1562 | & r8a66597_read(r8a66597, NRDYENB); | |
e294531d | 1563 | r8a66597_write(r8a66597, ~mask, NRDYSTS); |
5d304358 YS |
1564 | if (mask & NRDY0) { |
1565 | cfifo_change(r8a66597, 0); | |
888fda47 | 1566 | status = get_urb_error(r8a66597, 0); |
5d304358 | 1567 | pipe_irq_disable(r8a66597, 0); |
888fda47 | 1568 | check_next_phase(r8a66597, status); |
5d304358 YS |
1569 | } |
1570 | ||
1571 | for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1572 | check = 1 << pipenum; | |
1573 | if (mask & check) { | |
1574 | struct r8a66597_td *td; | |
1575 | td = r8a66597_get_td(r8a66597, pipenum); | |
1576 | if (unlikely(!td)) | |
1577 | continue; | |
1578 | ||
888fda47 | 1579 | status = get_urb_error(r8a66597, pipenum); |
5d304358 YS |
1580 | pipe_irq_disable(r8a66597, pipenum); |
1581 | pipe_stop(r8a66597, td->pipe); | |
888fda47 | 1582 | finish_request(r8a66597, td, pipenum, td->urb, status); |
5d304358 YS |
1583 | } |
1584 | } | |
1585 | } | |
1586 | ||
5d304358 YS |
1587 | static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) |
1588 | { | |
1589 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1590 | u16 intsts0, intsts1, intsts2; | |
1591 | u16 intenb0, intenb1, intenb2; | |
1592 | u16 mask0, mask1, mask2; | |
888fda47 | 1593 | int status; |
5d304358 YS |
1594 | |
1595 | spin_lock(&r8a66597->lock); | |
1596 | ||
1597 | intsts0 = r8a66597_read(r8a66597, INTSTS0); | |
1598 | intsts1 = r8a66597_read(r8a66597, INTSTS1); | |
1599 | intsts2 = r8a66597_read(r8a66597, INTSTS2); | |
1600 | intenb0 = r8a66597_read(r8a66597, INTENB0); | |
1601 | intenb1 = r8a66597_read(r8a66597, INTENB1); | |
1602 | intenb2 = r8a66597_read(r8a66597, INTENB2); | |
1603 | ||
1604 | mask2 = intsts2 & intenb2; | |
1605 | mask1 = intsts1 & intenb1; | |
1606 | mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY); | |
1607 | if (mask2) { | |
1608 | if (mask2 & ATTCH) { | |
e294531d | 1609 | r8a66597_write(r8a66597, ~ATTCH, INTSTS2); |
5d304358 YS |
1610 | r8a66597_bclr(r8a66597, ATTCHE, INTENB2); |
1611 | ||
1612 | /* start usb bus sampling */ | |
54d0be9e | 1613 | start_root_hub_sampling(r8a66597, 1, 1); |
5d304358 YS |
1614 | } |
1615 | if (mask2 & DTCH) { | |
e294531d | 1616 | r8a66597_write(r8a66597, ~DTCH, INTSTS2); |
5d304358 YS |
1617 | r8a66597_bclr(r8a66597, DTCHE, INTENB2); |
1618 | r8a66597_usb_disconnect(r8a66597, 1); | |
1619 | } | |
e1e609be YS |
1620 | if (mask2 & BCHG) { |
1621 | r8a66597_write(r8a66597, ~BCHG, INTSTS2); | |
1622 | r8a66597_bclr(r8a66597, BCHGE, INTENB2); | |
1623 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1624 | } | |
5d304358 YS |
1625 | } |
1626 | ||
1627 | if (mask1) { | |
1628 | if (mask1 & ATTCH) { | |
e294531d | 1629 | r8a66597_write(r8a66597, ~ATTCH, INTSTS1); |
5d304358 YS |
1630 | r8a66597_bclr(r8a66597, ATTCHE, INTENB1); |
1631 | ||
1632 | /* start usb bus sampling */ | |
54d0be9e | 1633 | start_root_hub_sampling(r8a66597, 0, 1); |
5d304358 YS |
1634 | } |
1635 | if (mask1 & DTCH) { | |
e294531d | 1636 | r8a66597_write(r8a66597, ~DTCH, INTSTS1); |
5d304358 YS |
1637 | r8a66597_bclr(r8a66597, DTCHE, INTENB1); |
1638 | r8a66597_usb_disconnect(r8a66597, 0); | |
1639 | } | |
e1e609be YS |
1640 | if (mask1 & BCHG) { |
1641 | r8a66597_write(r8a66597, ~BCHG, INTSTS1); | |
1642 | r8a66597_bclr(r8a66597, BCHGE, INTENB1); | |
1643 | usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); | |
1644 | } | |
1645 | ||
5d304358 | 1646 | if (mask1 & SIGN) { |
e294531d | 1647 | r8a66597_write(r8a66597, ~SIGN, INTSTS1); |
888fda47 AS |
1648 | status = get_urb_error(r8a66597, 0); |
1649 | check_next_phase(r8a66597, status); | |
5d304358 YS |
1650 | } |
1651 | if (mask1 & SACK) { | |
e294531d | 1652 | r8a66597_write(r8a66597, ~SACK, INTSTS1); |
888fda47 | 1653 | check_next_phase(r8a66597, 0); |
5d304358 YS |
1654 | } |
1655 | } | |
1656 | if (mask0) { | |
1657 | if (mask0 & BRDY) | |
1658 | irq_pipe_ready(r8a66597); | |
1659 | if (mask0 & BEMP) | |
1660 | irq_pipe_empty(r8a66597); | |
1661 | if (mask0 & NRDY) | |
1662 | irq_pipe_nrdy(r8a66597); | |
1663 | } | |
1664 | ||
1665 | spin_unlock(&r8a66597->lock); | |
1666 | return IRQ_HANDLED; | |
1667 | } | |
1668 | ||
1669 | /* this function must be called with interrupt disabled */ | |
1670 | static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port) | |
1671 | { | |
1672 | u16 tmp; | |
1673 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
1674 | ||
1675 | if (rh->port & (1 << USB_PORT_FEAT_RESET)) { | |
1676 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
1677 | ||
1678 | tmp = r8a66597_read(r8a66597, dvstctr_reg); | |
1679 | if ((tmp & USBRST) == USBRST) { | |
1680 | r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, | |
1681 | dvstctr_reg); | |
29fab0cd | 1682 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1683 | } else |
1684 | r8a66597_usb_connect(r8a66597, port); | |
1685 | } | |
1686 | ||
29fab0cd YS |
1687 | if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) { |
1688 | r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); | |
1689 | r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); | |
1690 | } | |
1691 | ||
5d304358 YS |
1692 | if (rh->scount > 0) { |
1693 | tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; | |
1694 | if (tmp == rh->old_syssts) { | |
1695 | rh->scount--; | |
29fab0cd YS |
1696 | if (rh->scount == 0) |
1697 | r8a66597_check_syssts(r8a66597, port, tmp); | |
1698 | else | |
1699 | r8a66597_root_hub_start_polling(r8a66597); | |
5d304358 YS |
1700 | } else { |
1701 | rh->scount = R8A66597_MAX_SAMPLING; | |
1702 | rh->old_syssts = tmp; | |
29fab0cd | 1703 | r8a66597_root_hub_start_polling(r8a66597); |
5d304358 YS |
1704 | } |
1705 | } | |
1706 | } | |
1707 | ||
6d879107 YS |
1708 | static void r8a66597_interval_timer(unsigned long _r8a66597) |
1709 | { | |
1710 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1711 | unsigned long flags; | |
1712 | u16 pipenum; | |
1713 | struct r8a66597_td *td; | |
1714 | ||
1715 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1716 | ||
1717 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1718 | if (!(r8a66597->interval_map & (1 << pipenum))) | |
1719 | continue; | |
1720 | if (timer_pending(&r8a66597->interval_timer[pipenum])) | |
1721 | continue; | |
1722 | ||
1723 | td = r8a66597_get_td(r8a66597, pipenum); | |
1724 | if (td) | |
1725 | start_transfer(r8a66597, td); | |
1726 | } | |
1727 | ||
1728 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1729 | } | |
1730 | ||
5d304358 YS |
1731 | static void r8a66597_td_timer(unsigned long _r8a66597) |
1732 | { | |
1733 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1734 | unsigned long flags; | |
1735 | u16 pipenum; | |
1736 | struct r8a66597_td *td, *new_td = NULL; | |
1737 | struct r8a66597_pipe *pipe; | |
1738 | ||
1739 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1740 | for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) { | |
1741 | if (!(r8a66597->timeout_map & (1 << pipenum))) | |
1742 | continue; | |
1743 | if (timer_pending(&r8a66597->td_timer[pipenum])) | |
1744 | continue; | |
1745 | ||
1746 | td = r8a66597_get_td(r8a66597, pipenum); | |
1747 | if (!td) { | |
1748 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1749 | continue; | |
1750 | } | |
1751 | ||
1752 | if (td->urb->actual_length) { | |
1753 | set_td_timer(r8a66597, td); | |
1754 | break; | |
1755 | } | |
1756 | ||
1757 | pipe = td->pipe; | |
1758 | pipe_stop(r8a66597, pipe); | |
1759 | ||
1760 | new_td = td; | |
1761 | do { | |
1762 | list_move_tail(&new_td->queue, | |
1763 | &r8a66597->pipe_queue[pipenum]); | |
1764 | new_td = r8a66597_get_td(r8a66597, pipenum); | |
1765 | if (!new_td) { | |
1766 | new_td = td; | |
1767 | break; | |
1768 | } | |
1769 | } while (td != new_td && td->address == new_td->address); | |
1770 | ||
1771 | start_transfer(r8a66597, new_td); | |
1772 | ||
1773 | if (td == new_td) | |
1774 | r8a66597->timeout_map &= ~(1 << pipenum); | |
1775 | else | |
1776 | set_td_timer(r8a66597, new_td); | |
1777 | break; | |
1778 | } | |
1779 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1780 | } | |
1781 | ||
1782 | static void r8a66597_timer(unsigned long _r8a66597) | |
1783 | { | |
1784 | struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; | |
1785 | unsigned long flags; | |
58639646 | 1786 | int port; |
5d304358 YS |
1787 | |
1788 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1789 | ||
58639646 YS |
1790 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) |
1791 | r8a66597_root_hub_control(r8a66597, port); | |
5d304358 YS |
1792 | |
1793 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1794 | } | |
1795 | ||
1796 | static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb) | |
1797 | { | |
1798 | struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb); | |
1799 | ||
1800 | if (dev && dev->address && dev->state != USB_STATE_CONFIGURED && | |
1801 | (urb->dev->state == USB_STATE_CONFIGURED)) | |
1802 | return 1; | |
1803 | else | |
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | static int r8a66597_start(struct usb_hcd *hcd) | |
1808 | { | |
1809 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
5d304358 YS |
1810 | |
1811 | hcd->state = HC_STATE_RUNNING; | |
e294531d | 1812 | return enable_controller(r8a66597); |
5d304358 YS |
1813 | } |
1814 | ||
1815 | static void r8a66597_stop(struct usb_hcd *hcd) | |
1816 | { | |
1817 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1818 | ||
1819 | disable_controller(r8a66597); | |
1820 | } | |
1821 | ||
1822 | static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb) | |
1823 | { | |
1824 | unsigned int usb_address = usb_pipedevice(urb->pipe); | |
1825 | u16 root_port, hub_port; | |
1826 | ||
1827 | if (usb_address == 0) { | |
1828 | get_port_number(urb->dev->devpath, | |
1829 | &root_port, &hub_port); | |
1830 | set_devadd_reg(r8a66597, 0, | |
1831 | get_r8a66597_usb_speed(urb->dev->speed), | |
1832 | get_parent_r8a66597_address(r8a66597, urb->dev), | |
1833 | hub_port, root_port); | |
1834 | } | |
1835 | } | |
1836 | ||
1837 | static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597, | |
1838 | struct urb *urb, | |
e294531d | 1839 | struct usb_host_endpoint *hep) |
5d304358 YS |
1840 | { |
1841 | struct r8a66597_td *td; | |
1842 | u16 pipenum; | |
1843 | ||
e294531d | 1844 | td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC); |
5d304358 YS |
1845 | if (td == NULL) |
1846 | return NULL; | |
1847 | ||
1848 | pipenum = r8a66597_get_pipenum(urb, hep); | |
1849 | td->pipenum = pipenum; | |
1850 | td->pipe = hep->hcpriv; | |
1851 | td->urb = urb; | |
1852 | td->address = get_urb_to_r8a66597_addr(r8a66597, urb); | |
1853 | td->maxpacket = usb_maxpacket(urb->dev, urb->pipe, | |
1854 | !usb_pipein(urb->pipe)); | |
1855 | if (usb_pipecontrol(urb->pipe)) | |
1856 | td->type = USB_PID_SETUP; | |
1857 | else if (usb_pipein(urb->pipe)) | |
1858 | td->type = USB_PID_IN; | |
1859 | else | |
1860 | td->type = USB_PID_OUT; | |
1861 | INIT_LIST_HEAD(&td->queue); | |
1862 | ||
1863 | return td; | |
1864 | } | |
1865 | ||
1866 | static int r8a66597_urb_enqueue(struct usb_hcd *hcd, | |
5d304358 YS |
1867 | struct urb *urb, |
1868 | gfp_t mem_flags) | |
1869 | { | |
e9df41c5 | 1870 | struct usb_host_endpoint *hep = urb->ep; |
5d304358 YS |
1871 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); |
1872 | struct r8a66597_td *td = NULL; | |
e9df41c5 | 1873 | int ret, request = 0; |
5d304358 YS |
1874 | unsigned long flags; |
1875 | ||
1876 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1877 | if (!get_urb_to_r8a66597_dev(r8a66597, urb)) { | |
1878 | ret = -ENODEV; | |
e9df41c5 | 1879 | goto error_not_linked; |
5d304358 YS |
1880 | } |
1881 | ||
e9df41c5 AS |
1882 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
1883 | if (ret) | |
1884 | goto error_not_linked; | |
1885 | ||
5d304358 | 1886 | if (!hep->hcpriv) { |
e294531d YS |
1887 | hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), |
1888 | GFP_ATOMIC); | |
5d304358 YS |
1889 | if (!hep->hcpriv) { |
1890 | ret = -ENOMEM; | |
1891 | goto error; | |
1892 | } | |
1893 | set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA); | |
1894 | if (usb_pipeendpoint(urb->pipe)) | |
1895 | init_pipe_info(r8a66597, urb, hep, &hep->desc); | |
1896 | } | |
1897 | ||
1898 | if (unlikely(check_pipe_config(r8a66597, urb))) | |
1899 | init_pipe_config(r8a66597, urb); | |
1900 | ||
1901 | set_address_zero(r8a66597, urb); | |
e294531d | 1902 | td = r8a66597_make_td(r8a66597, urb, hep); |
5d304358 YS |
1903 | if (td == NULL) { |
1904 | ret = -ENOMEM; | |
1905 | goto error; | |
1906 | } | |
1907 | if (list_empty(&r8a66597->pipe_queue[td->pipenum])) | |
1908 | request = 1; | |
1909 | list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]); | |
5d304358 | 1910 | urb->hcpriv = td; |
5d304358 YS |
1911 | |
1912 | if (request) { | |
6d879107 YS |
1913 | if (td->pipe->info.timer_interval) { |
1914 | r8a66597->interval_map |= 1 << td->pipenum; | |
1915 | mod_timer(&r8a66597->interval_timer[td->pipenum], | |
1916 | jiffies + msecs_to_jiffies( | |
1917 | td->pipe->info.timer_interval)); | |
1918 | } else { | |
1919 | ret = start_transfer(r8a66597, td); | |
1920 | if (ret < 0) { | |
1921 | list_del(&td->queue); | |
1922 | kfree(td); | |
1923 | } | |
5d304358 YS |
1924 | } |
1925 | } else | |
1926 | set_td_timer(r8a66597, td); | |
1927 | ||
1928 | error: | |
e9df41c5 AS |
1929 | if (ret) |
1930 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
1931 | error_not_linked: | |
5d304358 YS |
1932 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
1933 | return ret; | |
1934 | } | |
1935 | ||
e9df41c5 AS |
1936 | static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, |
1937 | int status) | |
5d304358 YS |
1938 | { |
1939 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1940 | struct r8a66597_td *td; | |
1941 | unsigned long flags; | |
e9df41c5 | 1942 | int rc; |
5d304358 YS |
1943 | |
1944 | spin_lock_irqsave(&r8a66597->lock, flags); | |
e9df41c5 AS |
1945 | rc = usb_hcd_check_unlink_urb(hcd, urb, status); |
1946 | if (rc) | |
1947 | goto done; | |
1948 | ||
5d304358 YS |
1949 | if (urb->hcpriv) { |
1950 | td = urb->hcpriv; | |
1951 | pipe_stop(r8a66597, td->pipe); | |
1952 | pipe_irq_disable(r8a66597, td->pipenum); | |
1953 | disable_irq_empty(r8a66597, td->pipenum); | |
888fda47 | 1954 | finish_request(r8a66597, td, td->pipenum, urb, status); |
5d304358 | 1955 | } |
e9df41c5 | 1956 | done: |
5d304358 | 1957 | spin_unlock_irqrestore(&r8a66597->lock, flags); |
e9df41c5 | 1958 | return rc; |
5d304358 YS |
1959 | } |
1960 | ||
1961 | static void r8a66597_endpoint_disable(struct usb_hcd *hcd, | |
1962 | struct usb_host_endpoint *hep) | |
1963 | { | |
1964 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1965 | struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv; | |
1966 | struct r8a66597_td *td; | |
1967 | struct urb *urb = NULL; | |
1968 | u16 pipenum; | |
1969 | unsigned long flags; | |
1970 | ||
1971 | if (pipe == NULL) | |
1972 | return; | |
1973 | pipenum = pipe->info.pipenum; | |
1974 | ||
1975 | if (pipenum == 0) { | |
1976 | kfree(hep->hcpriv); | |
1977 | hep->hcpriv = NULL; | |
1978 | return; | |
1979 | } | |
1980 | ||
1981 | spin_lock_irqsave(&r8a66597->lock, flags); | |
1982 | pipe_stop(r8a66597, pipe); | |
1983 | pipe_irq_disable(r8a66597, pipenum); | |
1984 | disable_irq_empty(r8a66597, pipenum); | |
1985 | td = r8a66597_get_td(r8a66597, pipenum); | |
1986 | if (td) | |
1987 | urb = td->urb; | |
888fda47 | 1988 | finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN); |
5d304358 YS |
1989 | kfree(hep->hcpriv); |
1990 | hep->hcpriv = NULL; | |
1991 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
1992 | } | |
1993 | ||
1994 | static int r8a66597_get_frame(struct usb_hcd *hcd) | |
1995 | { | |
1996 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
1997 | return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; | |
1998 | } | |
1999 | ||
2000 | static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) | |
2001 | { | |
2002 | int chix; | |
2003 | ||
2004 | if (udev->state == USB_STATE_CONFIGURED && | |
2005 | udev->parent && udev->parent->devnum > 1 && | |
2006 | udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) | |
2007 | map[udev->devnum/32] |= (1 << (udev->devnum % 32)); | |
2008 | ||
2009 | for (chix = 0; chix < udev->maxchild; chix++) { | |
2010 | struct usb_device *childdev = udev->children[chix]; | |
2011 | ||
2012 | if (childdev) | |
2013 | collect_usb_address_map(childdev, map); | |
2014 | } | |
2015 | } | |
2016 | ||
2017 | /* this function must be called with interrupt disabled */ | |
2018 | static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, | |
2019 | int addr) | |
2020 | { | |
2021 | struct r8a66597_device *dev; | |
2022 | struct list_head *list = &r8a66597->child_device; | |
2023 | ||
2024 | list_for_each_entry(dev, list, device_list) { | |
2025 | if (!dev) | |
2026 | continue; | |
2027 | if (dev->usb_address != addr) | |
2028 | continue; | |
2029 | ||
2030 | return dev; | |
2031 | } | |
2032 | ||
802f389a | 2033 | printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); |
5d304358 YS |
2034 | return NULL; |
2035 | } | |
2036 | ||
2037 | static void update_usb_address_map(struct r8a66597 *r8a66597, | |
2038 | struct usb_device *root_hub, | |
2039 | unsigned long *map) | |
2040 | { | |
2041 | int i, j, addr; | |
2042 | unsigned long diff; | |
2043 | unsigned long flags; | |
2044 | ||
2045 | for (i = 0; i < 4; i++) { | |
2046 | diff = r8a66597->child_connect_map[i] ^ map[i]; | |
2047 | if (!diff) | |
2048 | continue; | |
2049 | ||
2050 | for (j = 0; j < 32; j++) { | |
2051 | if (!(diff & (1 << j))) | |
2052 | continue; | |
2053 | ||
2054 | addr = i * 32 + j; | |
2055 | if (map[i] & (1 << j)) | |
2056 | set_child_connect_map(r8a66597, addr); | |
2057 | else { | |
2058 | struct r8a66597_device *dev; | |
2059 | ||
2060 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2061 | dev = get_r8a66597_device(r8a66597, addr); | |
2062 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2063 | free_usb_address(r8a66597, dev); | |
2064 | put_child_connect_map(r8a66597, addr); | |
2065 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2066 | } | |
2067 | } | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, | |
2072 | struct usb_hcd *hcd) | |
2073 | { | |
2074 | struct usb_bus *bus; | |
2075 | unsigned long now_map[4]; | |
2076 | ||
2077 | memset(now_map, 0, sizeof(now_map)); | |
2078 | ||
2079 | list_for_each_entry(bus, &usb_bus_list, bus_list) { | |
2080 | if (!bus->root_hub) | |
2081 | continue; | |
2082 | ||
2083 | if (bus->busnum != hcd->self.busnum) | |
2084 | continue; | |
2085 | ||
2086 | collect_usb_address_map(bus->root_hub, now_map); | |
2087 | update_usb_address_map(r8a66597, bus->root_hub, now_map); | |
2088 | } | |
2089 | } | |
2090 | ||
2091 | static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2092 | { | |
2093 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2094 | unsigned long flags; | |
2095 | int i; | |
2096 | ||
2097 | r8a66597_check_detect_child(r8a66597, hcd); | |
2098 | ||
2099 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2100 | ||
2101 | *buf = 0; /* initialize (no change) */ | |
2102 | ||
2103 | for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) { | |
2104 | if (r8a66597->root_hub[i].port & 0xffff0000) | |
2105 | *buf |= 1 << (i + 1); | |
2106 | } | |
2107 | ||
2108 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2109 | ||
2110 | return (*buf != 0); | |
2111 | } | |
2112 | ||
2113 | static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597, | |
2114 | struct usb_hub_descriptor *desc) | |
2115 | { | |
2116 | desc->bDescriptorType = 0x29; | |
2117 | desc->bHubContrCurrent = 0; | |
2118 | desc->bNbrPorts = R8A66597_MAX_ROOT_HUB; | |
2119 | desc->bDescLength = 9; | |
2120 | desc->bPwrOn2PwrGood = 0; | |
2121 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
2122 | desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1; | |
2123 | desc->bitmap[1] = ~0; | |
2124 | } | |
2125 | ||
2126 | static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2127 | u16 wIndex, char *buf, u16 wLength) | |
2128 | { | |
2129 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2130 | int ret; | |
2131 | int port = (wIndex & 0x00FF) - 1; | |
2132 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2133 | unsigned long flags; | |
2134 | ||
2135 | ret = 0; | |
2136 | ||
2137 | spin_lock_irqsave(&r8a66597->lock, flags); | |
2138 | switch (typeReq) { | |
2139 | case ClearHubFeature: | |
2140 | case SetHubFeature: | |
2141 | switch (wValue) { | |
2142 | case C_HUB_OVER_CURRENT: | |
2143 | case C_HUB_LOCAL_POWER: | |
2144 | break; | |
2145 | default: | |
2146 | goto error; | |
2147 | } | |
2148 | break; | |
2149 | case ClearPortFeature: | |
2150 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2151 | goto error; | |
2152 | if (wLength != 0) | |
2153 | goto error; | |
2154 | ||
2155 | switch (wValue) { | |
2156 | case USB_PORT_FEAT_ENABLE: | |
e1e609be | 2157 | rh->port &= ~(1 << USB_PORT_FEAT_POWER); |
5d304358 YS |
2158 | break; |
2159 | case USB_PORT_FEAT_SUSPEND: | |
2160 | break; | |
2161 | case USB_PORT_FEAT_POWER: | |
2162 | r8a66597_port_power(r8a66597, port, 0); | |
2163 | break; | |
2164 | case USB_PORT_FEAT_C_ENABLE: | |
2165 | case USB_PORT_FEAT_C_SUSPEND: | |
2166 | case USB_PORT_FEAT_C_CONNECTION: | |
2167 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2168 | case USB_PORT_FEAT_C_RESET: | |
2169 | break; | |
2170 | default: | |
2171 | goto error; | |
2172 | } | |
2173 | rh->port &= ~(1 << wValue); | |
2174 | break; | |
2175 | case GetHubDescriptor: | |
2176 | r8a66597_hub_descriptor(r8a66597, | |
2177 | (struct usb_hub_descriptor *)buf); | |
2178 | break; | |
2179 | case GetHubStatus: | |
2180 | *buf = 0x00; | |
2181 | break; | |
2182 | case GetPortStatus: | |
2183 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2184 | goto error; | |
fd05e720 | 2185 | *(__le32 *)buf = cpu_to_le32(rh->port); |
5d304358 YS |
2186 | break; |
2187 | case SetPortFeature: | |
2188 | if (wIndex > R8A66597_MAX_ROOT_HUB) | |
2189 | goto error; | |
2190 | if (wLength != 0) | |
2191 | goto error; | |
2192 | ||
2193 | switch (wValue) { | |
2194 | case USB_PORT_FEAT_SUSPEND: | |
2195 | break; | |
2196 | case USB_PORT_FEAT_POWER: | |
2197 | r8a66597_port_power(r8a66597, port, 1); | |
2198 | rh->port |= (1 << USB_PORT_FEAT_POWER); | |
2199 | break; | |
2200 | case USB_PORT_FEAT_RESET: { | |
2201 | struct r8a66597_device *dev = rh->dev; | |
2202 | ||
2203 | rh->port |= (1 << USB_PORT_FEAT_RESET); | |
2204 | ||
2205 | disable_r8a66597_pipe_all(r8a66597, dev); | |
2206 | free_usb_address(r8a66597, dev); | |
2207 | ||
2208 | r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, | |
2209 | get_dvstctr_reg(port)); | |
2210 | mod_timer(&r8a66597->rh_timer, | |
2211 | jiffies + msecs_to_jiffies(50)); | |
2212 | } | |
2213 | break; | |
2214 | default: | |
2215 | goto error; | |
2216 | } | |
2217 | rh->port |= 1 << wValue; | |
2218 | break; | |
2219 | default: | |
2220 | error: | |
2221 | ret = -EPIPE; | |
2222 | break; | |
2223 | } | |
2224 | ||
2225 | spin_unlock_irqrestore(&r8a66597->lock, flags); | |
2226 | return ret; | |
2227 | } | |
2228 | ||
e1e609be YS |
2229 | #if defined(CONFIG_PM) |
2230 | static int r8a66597_bus_suspend(struct usb_hcd *hcd) | |
2231 | { | |
2232 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2233 | int port; | |
2234 | ||
2235 | dbg("%s", __func__); | |
2236 | ||
2237 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2238 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2239 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2240 | ||
2241 | if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE))) | |
2242 | continue; | |
2243 | ||
2244 | dbg("suspend port = %d", port); | |
2245 | r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */ | |
2246 | rh->port |= 1 << USB_PORT_FEAT_SUSPEND; | |
2247 | ||
2248 | if (rh->dev->udev->do_remote_wakeup) { | |
2249 | msleep(3); /* waiting last SOF */ | |
2250 | r8a66597_bset(r8a66597, RWUPE, dvstctr_reg); | |
2251 | r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port)); | |
2252 | r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port)); | |
2253 | } | |
2254 | } | |
2255 | ||
2256 | r8a66597->bus_suspended = 1; | |
2257 | ||
2258 | return 0; | |
2259 | } | |
2260 | ||
2261 | static int r8a66597_bus_resume(struct usb_hcd *hcd) | |
2262 | { | |
2263 | struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); | |
2264 | int port; | |
2265 | ||
2266 | dbg("%s", __func__); | |
2267 | ||
2268 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2269 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2270 | unsigned long dvstctr_reg = get_dvstctr_reg(port); | |
2271 | ||
2272 | if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND))) | |
2273 | continue; | |
2274 | ||
2275 | dbg("resume port = %d", port); | |
2276 | rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND); | |
2277 | rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND; | |
2278 | r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); | |
2279 | msleep(50); | |
2280 | r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); | |
2281 | } | |
2282 | ||
2283 | return 0; | |
2284 | ||
2285 | } | |
2286 | #else | |
2287 | #define r8a66597_bus_suspend NULL | |
2288 | #define r8a66597_bus_resume NULL | |
2289 | #endif | |
2290 | ||
5d304358 YS |
2291 | static struct hc_driver r8a66597_hc_driver = { |
2292 | .description = hcd_name, | |
2293 | .hcd_priv_size = sizeof(struct r8a66597), | |
2294 | .irq = r8a66597_irq, | |
2295 | ||
2296 | /* | |
2297 | * generic hardware linkage | |
2298 | */ | |
2299 | .flags = HCD_USB2, | |
2300 | ||
2301 | .start = r8a66597_start, | |
2302 | .stop = r8a66597_stop, | |
2303 | ||
2304 | /* | |
2305 | * managing i/o requests and associated device resources | |
2306 | */ | |
2307 | .urb_enqueue = r8a66597_urb_enqueue, | |
2308 | .urb_dequeue = r8a66597_urb_dequeue, | |
2309 | .endpoint_disable = r8a66597_endpoint_disable, | |
2310 | ||
2311 | /* | |
2312 | * periodic schedule support | |
2313 | */ | |
2314 | .get_frame_number = r8a66597_get_frame, | |
2315 | ||
2316 | /* | |
2317 | * root hub support | |
2318 | */ | |
2319 | .hub_status_data = r8a66597_hub_status_data, | |
2320 | .hub_control = r8a66597_hub_control, | |
e1e609be YS |
2321 | .bus_suspend = r8a66597_bus_suspend, |
2322 | .bus_resume = r8a66597_bus_resume, | |
5d304358 YS |
2323 | }; |
2324 | ||
2325 | #if defined(CONFIG_PM) | |
2326 | static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) | |
2327 | { | |
e1e609be YS |
2328 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); |
2329 | int port; | |
2330 | ||
2331 | dbg("%s", __func__); | |
2332 | ||
2333 | disable_controller(r8a66597); | |
2334 | ||
2335 | for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { | |
2336 | struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; | |
2337 | ||
2338 | rh->port = 0x00000000; | |
2339 | } | |
2340 | ||
5d304358 YS |
2341 | return 0; |
2342 | } | |
2343 | ||
2344 | static int r8a66597_resume(struct platform_device *pdev) | |
2345 | { | |
e1e609be YS |
2346 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); |
2347 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2348 | ||
2349 | dbg("%s", __func__); | |
2350 | ||
2351 | enable_controller(r8a66597); | |
2352 | usb_root_hub_lost_power(hcd->self.root_hub); | |
2353 | ||
5d304358 YS |
2354 | return 0; |
2355 | } | |
2356 | #else /* if defined(CONFIG_PM) */ | |
2357 | #define r8a66597_suspend NULL | |
2358 | #define r8a66597_resume NULL | |
2359 | #endif | |
2360 | ||
2361 | static int __init_or_module r8a66597_remove(struct platform_device *pdev) | |
2362 | { | |
2363 | struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); | |
2364 | struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); | |
2365 | ||
2366 | del_timer_sync(&r8a66597->rh_timer); | |
5d304358 | 2367 | usb_remove_hcd(hcd); |
ca0677a2 | 2368 | iounmap((void *)r8a66597->reg); |
765786e0 MD |
2369 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2370 | clk_put(r8a66597->clk); | |
2371 | #endif | |
5d304358 YS |
2372 | usb_put_hcd(hcd); |
2373 | return 0; | |
2374 | } | |
2375 | ||
8864bd86 | 2376 | static int __devinit r8a66597_probe(struct platform_device *pdev) |
5d304358 | 2377 | { |
765786e0 MD |
2378 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2379 | char clk_name[8]; | |
2380 | #endif | |
27140219 | 2381 | struct resource *res = NULL, *ires; |
5d304358 YS |
2382 | int irq = -1; |
2383 | void __iomem *reg = NULL; | |
2384 | struct usb_hcd *hcd = NULL; | |
2385 | struct r8a66597 *r8a66597; | |
2386 | int ret = 0; | |
2387 | int i; | |
0bf32b80 | 2388 | unsigned long irq_trigger; |
5d304358 YS |
2389 | |
2390 | if (pdev->dev.dma_mask) { | |
2391 | ret = -EINVAL; | |
802f389a | 2392 | dev_err(&pdev->dev, "dma not supported\n"); |
5d304358 YS |
2393 | goto clean_up; |
2394 | } | |
2395 | ||
0a2e5b9b | 2396 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
5d304358 YS |
2397 | if (!res) { |
2398 | ret = -ENODEV; | |
0a2e5b9b | 2399 | dev_err(&pdev->dev, "platform_get_resource error.\n"); |
5d304358 YS |
2400 | goto clean_up; |
2401 | } | |
2402 | ||
27140219 MZ |
2403 | ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
2404 | if (!ires) { | |
5d304358 | 2405 | ret = -ENODEV; |
802f389a GKH |
2406 | dev_err(&pdev->dev, |
2407 | "platform_get_resource IORESOURCE_IRQ error.\n"); | |
5d304358 YS |
2408 | goto clean_up; |
2409 | } | |
2410 | ||
27140219 MZ |
2411 | irq = ires->start; |
2412 | irq_trigger = ires->flags & IRQF_TRIGGER_MASK; | |
2413 | ||
0a2e5b9b | 2414 | reg = ioremap(res->start, resource_size(res)); |
5d304358 YS |
2415 | if (reg == NULL) { |
2416 | ret = -ENOMEM; | |
802f389a | 2417 | dev_err(&pdev->dev, "ioremap error.\n"); |
5d304358 YS |
2418 | goto clean_up; |
2419 | } | |
2420 | ||
2421 | /* initialize hcd */ | |
2422 | hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); | |
2423 | if (!hcd) { | |
2424 | ret = -ENOMEM; | |
802f389a | 2425 | dev_err(&pdev->dev, "Failed to create hcd\n"); |
5d304358 YS |
2426 | goto clean_up; |
2427 | } | |
2428 | r8a66597 = hcd_to_r8a66597(hcd); | |
2429 | memset(r8a66597, 0, sizeof(struct r8a66597)); | |
2430 | dev_set_drvdata(&pdev->dev, r8a66597); | |
2431 | ||
765786e0 MD |
2432 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) |
2433 | snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); | |
2434 | r8a66597->clk = clk_get(&pdev->dev, clk_name); | |
2435 | if (IS_ERR(r8a66597->clk)) { | |
2436 | dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); | |
2437 | ret = PTR_ERR(r8a66597->clk); | |
2438 | goto clean_up2; | |
2439 | } | |
2440 | #endif | |
2441 | ||
5d304358 YS |
2442 | spin_lock_init(&r8a66597->lock); |
2443 | init_timer(&r8a66597->rh_timer); | |
2444 | r8a66597->rh_timer.function = r8a66597_timer; | |
2445 | r8a66597->rh_timer.data = (unsigned long)r8a66597; | |
2446 | r8a66597->reg = (unsigned long)reg; | |
2447 | ||
2448 | for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) { | |
2449 | INIT_LIST_HEAD(&r8a66597->pipe_queue[i]); | |
2450 | init_timer(&r8a66597->td_timer[i]); | |
2451 | r8a66597->td_timer[i].function = r8a66597_td_timer; | |
2452 | r8a66597->td_timer[i].data = (unsigned long)r8a66597; | |
6d879107 YS |
2453 | setup_timer(&r8a66597->interval_timer[i], |
2454 | r8a66597_interval_timer, | |
2455 | (unsigned long)r8a66597); | |
5d304358 YS |
2456 | } |
2457 | INIT_LIST_HEAD(&r8a66597->child_device); | |
2458 | ||
2459 | hcd->rsrc_start = res->start; | |
27140219 MZ |
2460 | |
2461 | /* irq_sense setting on cmdline takes precedence over resource | |
2462 | * settings, so the introduction of irqflags in IRQ resourse | |
2463 | * won't disturb existing setups */ | |
2464 | switch (irq_sense) { | |
2465 | case INTL: | |
2466 | irq_trigger = IRQF_TRIGGER_LOW; | |
2467 | break; | |
2468 | case 0: | |
2469 | irq_trigger = IRQF_TRIGGER_FALLING; | |
2470 | break; | |
2471 | case 0xff: | |
2472 | if (irq_trigger) | |
2473 | irq_sense = (irq_trigger & IRQF_TRIGGER_LOW) ? | |
2474 | INTL : 0; | |
2475 | else { | |
2476 | irq_sense = INTL; | |
2477 | irq_trigger = IRQF_TRIGGER_LOW; | |
2478 | } | |
2479 | break; | |
2480 | default: | |
802f389a | 2481 | dev_err(&pdev->dev, "Unknown irq_sense value.\n"); |
27140219 MZ |
2482 | } |
2483 | ||
0bf32b80 | 2484 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); |
5d304358 | 2485 | if (ret != 0) { |
802f389a | 2486 | dev_err(&pdev->dev, "Failed to add hcd\n"); |
765786e0 | 2487 | goto clean_up3; |
5d304358 YS |
2488 | } |
2489 | ||
2490 | return 0; | |
2491 | ||
765786e0 MD |
2492 | clean_up3: |
2493 | #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) | |
2494 | clk_put(r8a66597->clk); | |
765786e0 | 2495 | clean_up2: |
d6435102 | 2496 | #endif |
765786e0 MD |
2497 | usb_put_hcd(hcd); |
2498 | ||
5d304358 YS |
2499 | clean_up: |
2500 | if (reg) | |
2501 | iounmap(reg); | |
5d304358 YS |
2502 | |
2503 | return ret; | |
2504 | } | |
2505 | ||
2506 | static struct platform_driver r8a66597_driver = { | |
2507 | .probe = r8a66597_probe, | |
2508 | .remove = r8a66597_remove, | |
2509 | .suspend = r8a66597_suspend, | |
2510 | .resume = r8a66597_resume, | |
2511 | .driver = { | |
2512 | .name = (char *) hcd_name, | |
f4fce61d | 2513 | .owner = THIS_MODULE, |
5d304358 YS |
2514 | }, |
2515 | }; | |
2516 | ||
2517 | static int __init r8a66597_init(void) | |
2518 | { | |
2519 | if (usb_disabled()) | |
2520 | return -ENODEV; | |
2521 | ||
5909f6ea GKH |
2522 | printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, |
2523 | DRIVER_VERSION); | |
5d304358 YS |
2524 | return platform_driver_register(&r8a66597_driver); |
2525 | } | |
2526 | module_init(r8a66597_init); | |
2527 | ||
2528 | static void __exit r8a66597_cleanup(void) | |
2529 | { | |
2530 | platform_driver_unregister(&r8a66597_driver); | |
2531 | } | |
2532 | module_exit(r8a66597_cleanup); | |
2533 |