blob: 237e8b1e70279e35086855e1acfae239f66ca7e2 [file] [log] [blame]
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +09001/*
2 * Renesas USB driver
3 *
4 * Copyright (C) 2011 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
15 *
16 */
17#include <linux/delay.h>
18#include <linux/io.h>
19#include "./common.h"
20#include "./pipe.h"
21
Kuninori Morimotod3af90a2011-06-06 14:18:44 +090022#define usbhsf_get_cfifo(p) (&((p)->fifo_info.cfifo))
Kuninori Morimotoe73a9892011-06-06 14:19:03 +090023#define usbhsf_get_d0fifo(p) (&((p)->fifo_info.d0fifo))
24#define usbhsf_get_d1fifo(p) (&((p)->fifo_info.d1fifo))
Kuninori Morimotod3af90a2011-06-06 14:18:44 +090025
Kuninori Morimotod77e3f42011-06-06 14:18:50 +090026#define usbhsf_fifo_is_busy(f) ((f)->pipe) /* see usbhs_pipe_select_fifo */
27
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +090028/*
Kuninori Morimoto233f5192011-07-07 00:23:24 -070029 * packet initialize
30 */
31void usbhs_pkt_init(struct usbhs_pkt *pkt)
32{
33 pkt->dma = DMA_ADDR_INVALID;
34 INIT_LIST_HEAD(&pkt->node);
35}
36
37/*
38 * packet control function
Kuninori Morimoto4bd04812011-06-06 14:18:07 +090039 */
Kuninori Morimoto97664a22011-06-06 14:18:38 +090040static int usbhsf_null_handle(struct usbhs_pkt *pkt, int *is_done)
Kuninori Morimotodad67392011-06-06 14:18:28 +090041{
42 struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe);
43 struct device *dev = usbhs_priv_to_dev(priv);
44
45 dev_err(dev, "null handler\n");
46
47 return -EINVAL;
48}
49
50static struct usbhs_pkt_handle usbhsf_null_handler = {
51 .prepare = usbhsf_null_handle,
52 .try_run = usbhsf_null_handle,
53};
54
Kuninori Morimoto659d4952011-06-06 14:18:23 +090055void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
Kuninori Morimotodad67392011-06-06 14:18:28 +090056 struct usbhs_pkt_handle *handler,
Kuninori Morimoto659d4952011-06-06 14:18:23 +090057 void *buf, int len, int zero)
Kuninori Morimoto6acb95d2011-06-06 14:18:16 +090058{
Kuninori Morimotodad67392011-06-06 14:18:28 +090059 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
60 struct device *dev = usbhs_priv_to_dev(priv);
Kuninori Morimoto97664a22011-06-06 14:18:38 +090061 unsigned long flags;
62
63 /******************** spin lock ********************/
64 usbhs_lock(priv, flags);
Kuninori Morimotodad67392011-06-06 14:18:28 +090065
66 if (!handler) {
67 dev_err(dev, "no handler function\n");
68 handler = &usbhsf_null_handler;
69 }
70
Kuninori Morimoto6acb95d2011-06-06 14:18:16 +090071 list_del_init(&pkt->node);
72 list_add_tail(&pkt->node, &pipe->list);
73
Kuninori Morimoto659d4952011-06-06 14:18:23 +090074 pkt->pipe = pipe;
75 pkt->buf = buf;
Kuninori Morimotodad67392011-06-06 14:18:28 +090076 pkt->handler = handler;
Kuninori Morimoto659d4952011-06-06 14:18:23 +090077 pkt->length = len;
78 pkt->zero = zero;
79 pkt->actual = 0;
Kuninori Morimoto97664a22011-06-06 14:18:38 +090080
81 usbhs_unlock(priv, flags);
82 /******************** spin unlock ******************/
Kuninori Morimoto0432eed2011-06-06 14:18:54 +090083
84 usbhs_pkt_start(pipe);
Kuninori Morimoto6acb95d2011-06-06 14:18:16 +090085}
86
Kuninori Morimoto97664a22011-06-06 14:18:38 +090087static void __usbhsf_pkt_del(struct usbhs_pkt *pkt)
Kuninori Morimoto6acb95d2011-06-06 14:18:16 +090088{
89 list_del_init(&pkt->node);
90}
91
Kuninori Morimoto97664a22011-06-06 14:18:38 +090092static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe)
Kuninori Morimoto6acb95d2011-06-06 14:18:16 +090093{
94 if (list_empty(&pipe->list))
95 return NULL;
96
97 return list_entry(pipe->list.next, struct usbhs_pkt, node);
98}
99
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900100struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt)
101{
102 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
103 unsigned long flags;
104
105 /******************** spin lock ********************/
106 usbhs_lock(priv, flags);
107
108 if (!pkt)
109 pkt = __usbhsf_pkt_get(pipe);
110
111 if (pkt)
112 __usbhsf_pkt_del(pkt);
113
114 usbhs_unlock(priv, flags);
115 /******************** spin unlock ******************/
116
117 return pkt;
118}
119
120int __usbhs_pkt_handler(struct usbhs_pipe *pipe, int type)
121{
122 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
123 struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
124 struct usbhs_pkt *pkt;
125 struct device *dev = usbhs_priv_to_dev(priv);
126 int (*func)(struct usbhs_pkt *pkt, int *is_done);
127 unsigned long flags;
128 int ret = 0;
129 int is_done = 0;
130
131 /******************** spin lock ********************/
132 usbhs_lock(priv, flags);
133
134 pkt = __usbhsf_pkt_get(pipe);
135 if (!pkt)
136 goto __usbhs_pkt_handler_end;
137
138 switch (type) {
139 case USBHSF_PKT_PREPARE:
140 func = pkt->handler->prepare;
141 break;
142 case USBHSF_PKT_TRY_RUN:
143 func = pkt->handler->try_run;
144 break;
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900145 case USBHSF_PKT_DMA_DONE:
146 func = pkt->handler->dma_done;
147 break;
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900148 default:
149 dev_err(dev, "unknown pkt hander\n");
150 goto __usbhs_pkt_handler_end;
151 }
152
153 ret = func(pkt, &is_done);
154
155 if (is_done)
156 __usbhsf_pkt_del(pkt);
157
158__usbhs_pkt_handler_end:
159 usbhs_unlock(priv, flags);
160 /******************** spin unlock ******************/
161
Kuninori Morimoto0432eed2011-06-06 14:18:54 +0900162 if (is_done) {
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900163 info->done(pkt);
Kuninori Morimoto0432eed2011-06-06 14:18:54 +0900164 usbhs_pkt_start(pipe);
165 }
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900166
167 return ret;
168}
169
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900170/*
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900171 * irq enable/disable function
172 */
173#define usbhsf_irq_empty_ctrl(p, e) usbhsf_irq_callback_ctrl(p, bempsts, e)
174#define usbhsf_irq_ready_ctrl(p, e) usbhsf_irq_callback_ctrl(p, brdysts, e)
175#define usbhsf_irq_callback_ctrl(pipe, status, enable) \
176 ({ \
177 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); \
178 struct usbhs_mod *mod = usbhs_mod_get_current(priv); \
179 u16 status = (1 << usbhs_pipe_number(pipe)); \
180 if (!mod) \
181 return; \
182 if (enable) \
183 mod->irq_##status |= status; \
184 else \
185 mod->irq_##status &= ~status; \
186 usbhs_irq_callback_update(priv, mod); \
187 })
188
189static void usbhsf_tx_irq_ctrl(struct usbhs_pipe *pipe, int enable)
190{
191 /*
192 * And DCP pipe can NOT use "ready interrupt" for "send"
193 * it should use "empty" interrupt.
194 * see
195 * "Operation" - "Interrupt Function" - "BRDY Interrupt"
196 *
197 * on the other hand, normal pipe can use "ready interrupt" for "send"
198 * even though it is single/double buffer
199 */
200 if (usbhs_pipe_is_dcp(pipe))
201 usbhsf_irq_empty_ctrl(pipe, enable);
202 else
203 usbhsf_irq_ready_ctrl(pipe, enable);
204}
205
206static void usbhsf_rx_irq_ctrl(struct usbhs_pipe *pipe, int enable)
207{
208 usbhsf_irq_ready_ctrl(pipe, enable);
209}
210
211/*
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900212 * FIFO ctrl
213 */
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900214static void usbhsf_send_terminator(struct usbhs_pipe *pipe,
215 struct usbhs_fifo *fifo)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900216{
217 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
218
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900219 usbhs_bset(priv, fifo->ctr, BVAL, BVAL);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900220}
221
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900222static int usbhsf_fifo_barrier(struct usbhs_priv *priv,
223 struct usbhs_fifo *fifo)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900224{
225 int timeout = 1024;
226
227 do {
228 /* The FIFO port is accessible */
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900229 if (usbhs_read(priv, fifo->ctr) & FRDY)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900230 return 0;
231
232 udelay(10);
233 } while (timeout--);
234
235 return -EBUSY;
236}
237
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900238static void usbhsf_fifo_clear(struct usbhs_pipe *pipe,
239 struct usbhs_fifo *fifo)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900240{
241 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
242
243 if (!usbhs_pipe_is_dcp(pipe))
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900244 usbhsf_fifo_barrier(priv, fifo);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900245
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900246 usbhs_write(priv, fifo->ctr, BCLR);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900247}
248
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900249static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv,
250 struct usbhs_fifo *fifo)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900251{
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900252 return usbhs_read(priv, fifo->ctr) & DTLN_MASK;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900253}
254
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900255static void usbhsf_fifo_unselect(struct usbhs_pipe *pipe,
256 struct usbhs_fifo *fifo)
257{
258 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
259
260 usbhs_pipe_select_fifo(pipe, NULL);
261 usbhs_write(priv, fifo->sel, 0);
262}
263
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900264static int usbhsf_fifo_select(struct usbhs_pipe *pipe,
265 struct usbhs_fifo *fifo,
266 int write)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900267{
268 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
269 struct device *dev = usbhs_priv_to_dev(priv);
270 int timeout = 1024;
271 u16 mask = ((1 << 5) | 0xF); /* mask of ISEL | CURPIPE */
272 u16 base = usbhs_pipe_number(pipe); /* CURPIPE */
273
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900274 if (usbhs_pipe_is_busy(pipe) ||
275 usbhsf_fifo_is_busy(fifo))
276 return -EBUSY;
277
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900278 if (usbhs_pipe_is_dcp(pipe))
279 base |= (1 == write) << 5; /* ISEL */
280
281 /* "base" will be used below */
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900282 usbhs_write(priv, fifo->sel, base | MBW_32);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900283
284 /* check ISEL and CURPIPE value */
285 while (timeout--) {
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900286 if (base == (mask & usbhs_read(priv, fifo->sel))) {
287 usbhs_pipe_select_fifo(pipe, fifo);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900288 return 0;
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900289 }
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900290 udelay(10);
291 }
292
293 dev_err(dev, "fifo select error\n");
294
295 return -EIO;
296}
297
298/*
Kuninori Morimoto233f5192011-07-07 00:23:24 -0700299 * PIO push handler
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900300 */
Kuninori Morimoto0cb7e612011-06-06 14:18:58 +0900301static int usbhsf_pio_try_push(struct usbhs_pkt *pkt, int *is_done)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900302{
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900303 struct usbhs_pipe *pipe = pkt->pipe;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900304 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900305 struct device *dev = usbhs_priv_to_dev(priv);
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900306 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */
307 void __iomem *addr = priv->base + fifo->port;
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900308 u8 *buf;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900309 int maxp = usbhs_pipe_get_maxpacket(pipe);
310 int total_len;
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900311 int i, ret, len;
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900312 int is_short;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900313
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900314 ret = usbhsf_fifo_select(pipe, fifo, 1);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900315 if (ret < 0)
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900316 return 0;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900317
Kuninori Morimotodad67392011-06-06 14:18:28 +0900318 ret = usbhs_pipe_is_accessible(pipe);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900319 if (ret < 0)
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900320 goto usbhs_fifo_write_busy;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900321
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900322 ret = usbhsf_fifo_barrier(priv, fifo);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900323 if (ret < 0)
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900324 goto usbhs_fifo_write_busy;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900325
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900326 buf = pkt->buf + pkt->actual;
327 len = pkt->length - pkt->actual;
328 len = min(len, maxp);
329 total_len = len;
330 is_short = total_len < maxp;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900331
332 /*
333 * FIXME
334 *
335 * 32-bit access only
336 */
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900337 if (len >= 4 && !((unsigned long)buf & 0x03)) {
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900338 iowrite32_rep(addr, buf, len / 4);
339 len %= 4;
340 buf += total_len - len;
341 }
342
343 /* the rest operation */
344 for (i = 0; i < len; i++)
345 iowrite8(buf[i], addr + (0x03 - (i & 0x03)));
346
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900347 /*
348 * variable update
349 */
350 pkt->actual += total_len;
351
352 if (pkt->actual < pkt->length)
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900353 *is_done = 0; /* there are remainder data */
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900354 else if (is_short)
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900355 *is_done = 1; /* short packet */
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900356 else
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900357 *is_done = !pkt->zero; /* send zero packet ? */
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900358
359 /*
360 * pipe/irq handling
361 */
362 if (is_short)
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900363 usbhsf_send_terminator(pipe, fifo);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900364
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900365 usbhsf_tx_irq_ctrl(pipe, !*is_done);
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900366 usbhs_pipe_enable(pipe);
367
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900368 dev_dbg(dev, " send %d (%d/ %d/ %d/ %d)\n",
369 usbhs_pipe_number(pipe),
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900370 pkt->length, pkt->actual, *is_done, pkt->zero);
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900371
372 /*
373 * Transmission end
374 */
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900375 if (*is_done) {
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900376 if (usbhs_pipe_is_dcp(pipe))
377 usbhs_dcp_control_transfer_done(pipe);
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900378 }
379
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900380 usbhsf_fifo_unselect(pipe, fifo);
381
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900382 return 0;
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900383
384usbhs_fifo_write_busy:
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900385 usbhsf_fifo_unselect(pipe, fifo);
386
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900387 /*
388 * pipe is busy.
389 * retry in interrupt
390 */
391 usbhsf_tx_irq_ctrl(pipe, 1);
392
393 return ret;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900394}
395
Kuninori Morimoto0cb7e612011-06-06 14:18:58 +0900396struct usbhs_pkt_handle usbhs_fifo_pio_push_handler = {
397 .prepare = usbhsf_pio_try_push,
398 .try_run = usbhsf_pio_try_push,
Kuninori Morimotodad67392011-06-06 14:18:28 +0900399};
400
Kuninori Morimoto233f5192011-07-07 00:23:24 -0700401/*
402 * PIO pop handler
403 */
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900404static int usbhsf_prepare_pop(struct usbhs_pkt *pkt, int *is_done)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900405{
Kuninori Morimotodad67392011-06-06 14:18:28 +0900406 struct usbhs_pipe *pipe = pkt->pipe;
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900407
408 if (usbhs_pipe_is_busy(pipe))
409 return 0;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900410
411 /*
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900412 * pipe enable to prepare packet receive
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900413 */
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900414
415 usbhs_pipe_enable(pipe);
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900416 usbhsf_rx_irq_ctrl(pipe, 1);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900417
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900418 return 0;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900419}
420
Kuninori Morimoto0cb7e612011-06-06 14:18:58 +0900421static int usbhsf_pio_try_pop(struct usbhs_pkt *pkt, int *is_done)
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900422{
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900423 struct usbhs_pipe *pipe = pkt->pipe;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900424 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900425 struct device *dev = usbhs_priv_to_dev(priv);
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900426 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */
427 void __iomem *addr = priv->base + fifo->port;
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900428 u8 *buf;
429 u32 data = 0;
430 int maxp = usbhs_pipe_get_maxpacket(pipe);
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900431 int rcv_len, len;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900432 int i, ret;
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900433 int total_len = 0;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900434
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900435 ret = usbhsf_fifo_select(pipe, fifo, 0);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900436 if (ret < 0)
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900437 return 0;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900438
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900439 ret = usbhsf_fifo_barrier(priv, fifo);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900440 if (ret < 0)
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900441 goto usbhs_fifo_read_busy;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900442
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900443 rcv_len = usbhsf_fifo_rcv_len(priv, fifo);
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900444
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900445 buf = pkt->buf + pkt->actual;
446 len = pkt->length - pkt->actual;
447 len = min(len, rcv_len);
448 total_len = len;
449
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900450 /*
451 * Buffer clear if Zero-Length packet
452 *
453 * see
454 * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function"
455 */
456 if (0 == rcv_len) {
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900457 usbhsf_fifo_clear(pipe, fifo);
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900458 goto usbhs_fifo_read_end;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900459 }
460
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900461 /*
462 * FIXME
463 *
464 * 32-bit access only
465 */
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900466 if (len >= 4 && !((unsigned long)buf & 0x03)) {
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900467 ioread32_rep(addr, buf, len / 4);
468 len %= 4;
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900469 buf += total_len - len;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900470 }
471
472 /* the rest operation */
473 for (i = 0; i < len; i++) {
474 if (!(i & 0x03))
475 data = ioread32(addr);
476
477 buf[i] = (data >> ((i & 0x03) * 8)) & 0xff;
478 }
479
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900480 pkt->actual += total_len;
481
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900482usbhs_fifo_read_end:
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900483 if ((pkt->actual == pkt->length) || /* receive all data */
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900484 (total_len < maxp)) { /* short packet */
485 *is_done = 1;
486 usbhsf_rx_irq_ctrl(pipe, 0);
487 usbhs_pipe_disable(pipe);
488 }
Kuninori Morimoto659d4952011-06-06 14:18:23 +0900489
490 dev_dbg(dev, " recv %d (%d/ %d/ %d/ %d)\n",
491 usbhs_pipe_number(pipe),
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900492 pkt->length, pkt->actual, *is_done, pkt->zero);
Kuninori Morimoto4bd04812011-06-06 14:18:07 +0900493
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900494usbhs_fifo_read_busy:
495 usbhsf_fifo_unselect(pipe, fifo);
496
497 return ret;
Kuninori Morimotoe8d548d2011-06-06 14:18:03 +0900498}
Kuninori Morimotodad67392011-06-06 14:18:28 +0900499
Kuninori Morimoto0cb7e612011-06-06 14:18:58 +0900500struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler = {
Kuninori Morimotodad67392011-06-06 14:18:28 +0900501 .prepare = usbhsf_prepare_pop,
Kuninori Morimoto0cb7e612011-06-06 14:18:58 +0900502 .try_run = usbhsf_pio_try_pop,
Kuninori Morimotodad67392011-06-06 14:18:28 +0900503};
504
505/*
Kuninori Morimoto233f5192011-07-07 00:23:24 -0700506 * DCP ctrol statge handler
Kuninori Morimotodad67392011-06-06 14:18:28 +0900507 */
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900508static int usbhsf_ctrl_stage_end(struct usbhs_pkt *pkt, int *is_done)
Kuninori Morimotodad67392011-06-06 14:18:28 +0900509{
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900510 usbhs_dcp_control_transfer_done(pkt->pipe);
Kuninori Morimotodad67392011-06-06 14:18:28 +0900511
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900512 *is_done = 1;
Kuninori Morimotodad67392011-06-06 14:18:28 +0900513
514 return 0;
515}
516
517struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler = {
518 .prepare = usbhsf_ctrl_stage_end,
519 .try_run = usbhsf_ctrl_stage_end,
520};
521
522/*
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900523 * DMA fifo functions
524 */
525static struct dma_chan *usbhsf_dma_chan_get(struct usbhs_fifo *fifo,
526 struct usbhs_pkt *pkt)
527{
528 if (&usbhs_fifo_dma_push_handler == pkt->handler)
529 return fifo->tx_chan;
530
531 if (&usbhs_fifo_dma_pop_handler == pkt->handler)
532 return fifo->rx_chan;
533
534 return NULL;
535}
536
537static struct usbhs_fifo *usbhsf_get_dma_fifo(struct usbhs_priv *priv,
538 struct usbhs_pkt *pkt)
539{
540 struct usbhs_fifo *fifo;
541
542 /* DMA :: D0FIFO */
543 fifo = usbhsf_get_d0fifo(priv);
544 if (usbhsf_dma_chan_get(fifo, pkt) &&
545 !usbhsf_fifo_is_busy(fifo))
546 return fifo;
547
548 /* DMA :: D1FIFO */
549 fifo = usbhsf_get_d1fifo(priv);
550 if (usbhsf_dma_chan_get(fifo, pkt) &&
551 !usbhsf_fifo_is_busy(fifo))
552 return fifo;
553
554 return NULL;
555}
556
557#define usbhsf_dma_start(p, f) __usbhsf_dma_ctrl(p, f, DREQE)
558#define usbhsf_dma_stop(p, f) __usbhsf_dma_ctrl(p, f, 0)
559static void __usbhsf_dma_ctrl(struct usbhs_pipe *pipe,
560 struct usbhs_fifo *fifo,
561 u16 dreqe)
562{
563 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
564
565 usbhs_bset(priv, fifo->sel, DREQE, dreqe);
566}
567
568#define usbhsf_dma_map(p) __usbhsf_dma_map_ctrl(p, 1)
569#define usbhsf_dma_unmap(p) __usbhsf_dma_map_ctrl(p, 0)
570static int __usbhsf_dma_map_ctrl(struct usbhs_pkt *pkt, int map)
571{
572 struct usbhs_pipe *pipe = pkt->pipe;
573 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
574 struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
575
576 return info->dma_map_ctrl(pkt, map);
577}
578
579static void usbhsf_dma_complete(void *arg);
580static void usbhsf_dma_prepare_tasklet(unsigned long data)
581{
582 struct usbhs_pkt *pkt = (struct usbhs_pkt *)data;
583 struct usbhs_pipe *pipe = pkt->pipe;
584 struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe);
585 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
586 struct scatterlist sg;
587 struct dma_async_tx_descriptor *desc;
588 struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt);
589 struct device *dev = usbhs_priv_to_dev(priv);
590 enum dma_data_direction dir;
591 dma_cookie_t cookie;
592
593 dir = usbhs_pipe_is_dir_in(pipe) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
594
595 sg_init_table(&sg, 1);
596 sg_set_page(&sg, virt_to_page(pkt->dma),
597 pkt->length, offset_in_page(pkt->dma));
598 sg_dma_address(&sg) = pkt->dma + pkt->actual;
599 sg_dma_len(&sg) = pkt->trans;
600
601 desc = chan->device->device_prep_slave_sg(chan, &sg, 1, dir,
602 DMA_PREP_INTERRUPT |
603 DMA_CTRL_ACK);
604 if (!desc)
605 return;
606
607 desc->callback = usbhsf_dma_complete;
608 desc->callback_param = pipe;
609
610 cookie = desc->tx_submit(desc);
611 if (cookie < 0) {
612 dev_err(dev, "Failed to submit dma descriptor\n");
613 return;
614 }
615
616 dev_dbg(dev, " %s %d (%d/ %d)\n",
617 fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
618
619 usbhsf_dma_start(pipe, fifo);
620 dma_async_issue_pending(chan);
621}
622
Kuninori Morimoto233f5192011-07-07 00:23:24 -0700623/*
624 * DMA push handler
625 */
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900626static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
627{
628 struct usbhs_pipe *pipe = pkt->pipe;
629 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
630 struct usbhs_fifo *fifo;
631 int len = pkt->length - pkt->actual;
632 int ret;
633
634 if (usbhs_pipe_is_busy(pipe))
635 return 0;
636
637 /* use PIO if packet is less than pio_dma_border or pipe is DCP */
638 if ((len < usbhs_get_dparam(priv, pio_dma_border)) ||
639 usbhs_pipe_is_dcp(pipe))
640 goto usbhsf_pio_prepare_push;
641
642 if (len % 4) /* 32bit alignment */
643 goto usbhsf_pio_prepare_push;
644
645 /* get enable DMA fifo */
646 fifo = usbhsf_get_dma_fifo(priv, pkt);
647 if (!fifo)
648 goto usbhsf_pio_prepare_push;
649
650 if (usbhsf_dma_map(pkt) < 0)
651 goto usbhsf_pio_prepare_push;
652
653 ret = usbhsf_fifo_select(pipe, fifo, 0);
654 if (ret < 0)
655 goto usbhsf_pio_prepare_push_unmap;
656
657 pkt->trans = len;
658
659 tasklet_init(&fifo->tasklet,
660 usbhsf_dma_prepare_tasklet,
661 (unsigned long)pkt);
662
663 tasklet_schedule(&fifo->tasklet);
664
665 return 0;
666
667usbhsf_pio_prepare_push_unmap:
668 usbhsf_dma_unmap(pkt);
669usbhsf_pio_prepare_push:
670 /*
671 * change handler to PIO
672 */
673 pkt->handler = &usbhs_fifo_pio_push_handler;
674
675 return pkt->handler->prepare(pkt, is_done);
676}
677
678static int usbhsf_dma_push_done(struct usbhs_pkt *pkt, int *is_done)
679{
680 struct usbhs_pipe *pipe = pkt->pipe;
681
682 pkt->actual = pkt->trans;
683
684 *is_done = !pkt->zero; /* send zero packet ? */
685
686 usbhsf_dma_stop(pipe, pipe->fifo);
687 usbhsf_dma_unmap(pkt);
688 usbhsf_fifo_unselect(pipe, pipe->fifo);
689
690 return 0;
691}
692
693struct usbhs_pkt_handle usbhs_fifo_dma_push_handler = {
694 .prepare = usbhsf_dma_prepare_push,
695 .dma_done = usbhsf_dma_push_done,
696};
697
Kuninori Morimoto233f5192011-07-07 00:23:24 -0700698/*
699 * DMA pop handler
700 */
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900701static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done)
702{
703 struct usbhs_pipe *pipe = pkt->pipe;
704 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
705 struct usbhs_fifo *fifo;
706 int len, ret;
707
708 if (usbhs_pipe_is_busy(pipe))
709 return 0;
710
711 if (usbhs_pipe_is_dcp(pipe))
712 goto usbhsf_pio_prepare_pop;
713
714 /* get enable DMA fifo */
715 fifo = usbhsf_get_dma_fifo(priv, pkt);
716 if (!fifo)
717 goto usbhsf_pio_prepare_pop;
718
719 ret = usbhsf_fifo_select(pipe, fifo, 0);
720 if (ret < 0)
721 goto usbhsf_pio_prepare_pop;
722
723 /* use PIO if packet is less than pio_dma_border */
724 len = usbhsf_fifo_rcv_len(priv, fifo);
725 len = min(pkt->length - pkt->actual, len);
726 if (len % 4) /* 32bit alignment */
727 goto usbhsf_pio_prepare_pop_unselect;
728
729 if (len < usbhs_get_dparam(priv, pio_dma_border))
730 goto usbhsf_pio_prepare_pop_unselect;
731
732 ret = usbhsf_fifo_barrier(priv, fifo);
733 if (ret < 0)
734 goto usbhsf_pio_prepare_pop_unselect;
735
736 if (usbhsf_dma_map(pkt) < 0)
737 goto usbhsf_pio_prepare_pop_unselect;
738
739 /* DMA */
740
741 /*
742 * usbhs_fifo_dma_pop_handler :: prepare
743 * enabled irq to come here.
744 * but it is no longer needed for DMA. disable it.
745 */
746 usbhsf_rx_irq_ctrl(pipe, 0);
747
748 pkt->trans = len;
749
750 tasklet_init(&fifo->tasklet,
751 usbhsf_dma_prepare_tasklet,
752 (unsigned long)pkt);
753
754 tasklet_schedule(&fifo->tasklet);
755
756 return 0;
757
758usbhsf_pio_prepare_pop_unselect:
759 usbhsf_fifo_unselect(pipe, fifo);
760usbhsf_pio_prepare_pop:
761
762 /*
763 * change handler to PIO
764 */
765 pkt->handler = &usbhs_fifo_pio_pop_handler;
766
767 return pkt->handler->try_run(pkt, is_done);
768}
769
770static int usbhsf_dma_pop_done(struct usbhs_pkt *pkt, int *is_done)
771{
772 struct usbhs_pipe *pipe = pkt->pipe;
773 int maxp = usbhs_pipe_get_maxpacket(pipe);
774
775 usbhsf_dma_stop(pipe, pipe->fifo);
776 usbhsf_dma_unmap(pkt);
777 usbhsf_fifo_unselect(pipe, pipe->fifo);
778
779 pkt->actual += pkt->trans;
780
781 if ((pkt->actual == pkt->length) || /* receive all data */
782 (pkt->trans < maxp)) { /* short packet */
783 *is_done = 1;
784 } else {
785 /* re-enable */
786 usbhsf_prepare_pop(pkt, is_done);
787 }
788
789 return 0;
790}
791
792struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler = {
793 .prepare = usbhsf_prepare_pop,
794 .try_run = usbhsf_dma_try_pop,
795 .dma_done = usbhsf_dma_pop_done
796};
797
798/*
799 * DMA setting
800 */
801static bool usbhsf_dma_filter(struct dma_chan *chan, void *param)
802{
803 struct sh_dmae_slave *slave = param;
804
805 /*
806 * FIXME
807 *
808 * usbhs doesn't recognize id = 0 as valid DMA
809 */
810 if (0 == slave->slave_id)
811 return false;
812
813 chan->private = slave;
814
815 return true;
816}
817
818static void usbhsf_dma_quit(struct usbhs_priv *priv, struct usbhs_fifo *fifo)
819{
820 if (fifo->tx_chan)
821 dma_release_channel(fifo->tx_chan);
822 if (fifo->rx_chan)
823 dma_release_channel(fifo->rx_chan);
824
825 fifo->tx_chan = NULL;
826 fifo->rx_chan = NULL;
827}
828
829static void usbhsf_dma_init(struct usbhs_priv *priv,
830 struct usbhs_fifo *fifo)
831{
832 struct device *dev = usbhs_priv_to_dev(priv);
833 dma_cap_mask_t mask;
834
835 dma_cap_zero(mask);
836 dma_cap_set(DMA_SLAVE, mask);
837 fifo->tx_chan = dma_request_channel(mask, usbhsf_dma_filter,
838 &fifo->tx_slave);
839
840 dma_cap_zero(mask);
841 dma_cap_set(DMA_SLAVE, mask);
842 fifo->rx_chan = dma_request_channel(mask, usbhsf_dma_filter,
843 &fifo->rx_slave);
844
845 if (fifo->tx_chan || fifo->rx_chan)
Kuninori Morimoto4ce68802011-06-21 09:33:43 +0900846 dev_dbg(dev, "enable DMAEngine (%s%s%s)\n",
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900847 fifo->name,
848 fifo->tx_chan ? "[TX]" : " ",
849 fifo->rx_chan ? "[RX]" : " ");
850}
851
852/*
Kuninori Morimotodad67392011-06-06 14:18:28 +0900853 * irq functions
854 */
855static int usbhsf_irq_empty(struct usbhs_priv *priv,
856 struct usbhs_irq_state *irq_state)
857{
858 struct usbhs_pipe *pipe;
Kuninori Morimotodad67392011-06-06 14:18:28 +0900859 struct device *dev = usbhs_priv_to_dev(priv);
860 int i, ret;
861
862 if (!irq_state->bempsts) {
863 dev_err(dev, "debug %s !!\n", __func__);
864 return -EIO;
865 }
866
867 dev_dbg(dev, "irq empty [0x%04x]\n", irq_state->bempsts);
868
869 /*
870 * search interrupted "pipe"
871 * not "uep".
872 */
873 usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
874 if (!(irq_state->bempsts & (1 << i)))
875 continue;
876
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900877 ret = usbhs_pkt_run(pipe);
Kuninori Morimotodad67392011-06-06 14:18:28 +0900878 if (ret < 0)
879 dev_err(dev, "irq_empty run_error %d : %d\n", i, ret);
880 }
881
882 return 0;
883}
884
885static int usbhsf_irq_ready(struct usbhs_priv *priv,
886 struct usbhs_irq_state *irq_state)
887{
888 struct usbhs_pipe *pipe;
Kuninori Morimotodad67392011-06-06 14:18:28 +0900889 struct device *dev = usbhs_priv_to_dev(priv);
890 int i, ret;
891
892 if (!irq_state->brdysts) {
893 dev_err(dev, "debug %s !!\n", __func__);
894 return -EIO;
895 }
896
897 dev_dbg(dev, "irq ready [0x%04x]\n", irq_state->brdysts);
898
899 /*
900 * search interrupted "pipe"
901 * not "uep".
902 */
903 usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
904 if (!(irq_state->brdysts & (1 << i)))
905 continue;
906
Kuninori Morimoto97664a22011-06-06 14:18:38 +0900907 ret = usbhs_pkt_run(pipe);
Kuninori Morimotodad67392011-06-06 14:18:28 +0900908 if (ret < 0)
909 dev_err(dev, "irq_ready run_error %d : %d\n", i, ret);
910 }
911
912 return 0;
913}
914
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900915static void usbhsf_dma_complete(void *arg)
916{
917 struct usbhs_pipe *pipe = arg;
918 struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
919 struct device *dev = usbhs_priv_to_dev(priv);
920 int ret;
921
922 ret = usbhs_pkt_dmadone(pipe);
923 if (ret < 0)
924 dev_err(dev, "dma_complete run_error %d : %d\n",
925 usbhs_pipe_number(pipe), ret);
926}
927
Kuninori Morimotodad67392011-06-06 14:18:28 +0900928/*
929 * fifo init
930 */
931void usbhs_fifo_init(struct usbhs_priv *priv)
932{
933 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900934 struct usbhs_fifo *cfifo = usbhsf_get_cfifo(priv);
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900935 struct usbhs_fifo *d0fifo = usbhsf_get_d0fifo(priv);
936 struct usbhs_fifo *d1fifo = usbhsf_get_d1fifo(priv);
Kuninori Morimotodad67392011-06-06 14:18:28 +0900937
938 mod->irq_empty = usbhsf_irq_empty;
939 mod->irq_ready = usbhsf_irq_ready;
940 mod->irq_bempsts = 0;
941 mod->irq_brdysts = 0;
Kuninori Morimotod77e3f42011-06-06 14:18:50 +0900942
943 cfifo->pipe = NULL;
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900944 cfifo->tx_chan = NULL;
945 cfifo->rx_chan = NULL;
946
947 d0fifo->pipe = NULL;
948 d0fifo->tx_chan = NULL;
949 d0fifo->rx_chan = NULL;
950
951 d1fifo->pipe = NULL;
952 d1fifo->tx_chan = NULL;
953 d1fifo->rx_chan = NULL;
954
955 usbhsf_dma_init(priv, usbhsf_get_d0fifo(priv));
956 usbhsf_dma_init(priv, usbhsf_get_d1fifo(priv));
Kuninori Morimotodad67392011-06-06 14:18:28 +0900957}
958
959void usbhs_fifo_quit(struct usbhs_priv *priv)
960{
961 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
962
963 mod->irq_empty = NULL;
964 mod->irq_ready = NULL;
965 mod->irq_bempsts = 0;
966 mod->irq_brdysts = 0;
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900967
968 usbhsf_dma_quit(priv, usbhsf_get_d0fifo(priv));
969 usbhsf_dma_quit(priv, usbhsf_get_d1fifo(priv));
Kuninori Morimotodad67392011-06-06 14:18:28 +0900970}
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900971
972int usbhs_fifo_probe(struct usbhs_priv *priv)
973{
974 struct usbhs_fifo *fifo;
975
976 /* CFIFO */
977 fifo = usbhsf_get_cfifo(priv);
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900978 fifo->name = "CFIFO";
Kuninori Morimotod3af90a2011-06-06 14:18:44 +0900979 fifo->port = CFIFO;
980 fifo->sel = CFIFOSEL;
981 fifo->ctr = CFIFOCTR;
982
Kuninori Morimotoe73a9892011-06-06 14:19:03 +0900983 /* D0FIFO */
984 fifo = usbhsf_get_d0fifo(priv);
985 fifo->name = "D0FIFO";
986 fifo->port = D0FIFO;
987 fifo->sel = D0FIFOSEL;
988 fifo->ctr = D0FIFOCTR;
989 fifo->tx_slave.slave_id = usbhs_get_dparam(priv, d0_tx_id);
990 fifo->rx_slave.slave_id = usbhs_get_dparam(priv, d0_rx_id);
991
992 /* D1FIFO */
993 fifo = usbhsf_get_d1fifo(priv);
994 fifo->name = "D1FIFO";
995 fifo->port = D1FIFO;
996 fifo->sel = D1FIFOSEL;
997 fifo->ctr = D1FIFOCTR;
998 fifo->tx_slave.slave_id = usbhs_get_dparam(priv, d1_tx_id);
999 fifo->rx_slave.slave_id = usbhs_get_dparam(priv, d1_rx_id);
1000
Kuninori Morimotod3af90a2011-06-06 14:18:44 +09001001 return 0;
1002}
1003
1004void usbhs_fifo_remove(struct usbhs_priv *priv)
1005{
1006}