root / hw / omap_dma.c @ bf5b7423
History | View | Annotate | Download (51 kB)
1 |
/*
|
---|---|
2 |
* TI OMAP DMA gigacell.
|
3 |
*
|
4 |
* Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org>
|
5 |
* Copyright (C) 2007-2008 Lauro Ramos Venancio <lauro.venancio@indt.org.br>
|
6 |
*
|
7 |
* This program is free software; you can redistribute it and/or
|
8 |
* modify it under the terms of the GNU General Public License as
|
9 |
* published by the Free Software Foundation; either version 2 of
|
10 |
* the License, or (at your option) any later version.
|
11 |
*
|
12 |
* This program is distributed in the hope that it will be useful,
|
13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
15 |
* GNU General Public License for more details.
|
16 |
*
|
17 |
* You should have received a copy of the GNU General Public License
|
18 |
* along with this program; if not, write to the Free Software
|
19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
20 |
* MA 02111-1307 USA
|
21 |
*/
|
22 |
#include "qemu-common.h" |
23 |
#include "qemu-timer.h" |
24 |
#include "omap.h" |
25 |
#include "irq.h" |
26 |
|
27 |
struct omap_dma_channel_s {
|
28 |
/* transfer data */
|
29 |
int burst[2]; |
30 |
int pack[2]; |
31 |
int endian[2]; |
32 |
int endian_lock[2]; |
33 |
int translate[2]; |
34 |
enum omap_dma_port port[2]; |
35 |
target_phys_addr_t addr[2];
|
36 |
omap_dma_addressing_t mode[2];
|
37 |
uint32_t elements; |
38 |
uint16_t frames; |
39 |
int32_t frame_index[2];
|
40 |
int16_t element_index[2];
|
41 |
int data_type;
|
42 |
|
43 |
/* transfer type */
|
44 |
int transparent_copy;
|
45 |
int constant_fill;
|
46 |
uint32_t color; |
47 |
int prefetch;
|
48 |
|
49 |
/* auto init and linked channel data */
|
50 |
int end_prog;
|
51 |
int repeat;
|
52 |
int auto_init;
|
53 |
int link_enabled;
|
54 |
int link_next_ch;
|
55 |
|
56 |
/* interruption data */
|
57 |
int interrupts;
|
58 |
int status;
|
59 |
int cstatus;
|
60 |
|
61 |
/* state data */
|
62 |
int active;
|
63 |
int enable;
|
64 |
int sync;
|
65 |
int src_sync;
|
66 |
int pending_request;
|
67 |
int waiting_end_prog;
|
68 |
uint16_t cpc; |
69 |
|
70 |
/* sync type */
|
71 |
int fs;
|
72 |
int bs;
|
73 |
|
74 |
/* compatibility */
|
75 |
int omap_3_1_compatible_disable;
|
76 |
|
77 |
qemu_irq irq; |
78 |
struct omap_dma_channel_s *sibling;
|
79 |
|
80 |
struct omap_dma_reg_set_s {
|
81 |
target_phys_addr_t src, dest; |
82 |
int frame;
|
83 |
int element;
|
84 |
int pck_element;
|
85 |
int frame_delta[2]; |
86 |
int elem_delta[2]; |
87 |
int frames;
|
88 |
int elements;
|
89 |
int pck_elements;
|
90 |
} active_set; |
91 |
|
92 |
/* unused parameters */
|
93 |
int write_mode;
|
94 |
int priority;
|
95 |
int interleave_disabled;
|
96 |
int type;
|
97 |
int suspend;
|
98 |
int buf_disable;
|
99 |
}; |
100 |
|
101 |
struct omap_dma_s {
|
102 |
QEMUTimer *tm; |
103 |
struct omap_mpu_state_s *mpu;
|
104 |
target_phys_addr_t base; |
105 |
omap_clk clk; |
106 |
int64_t delay; |
107 |
uint64_t drq; |
108 |
qemu_irq irq[4];
|
109 |
void (*intr_update)(struct omap_dma_s *s); |
110 |
enum omap_dma_model model;
|
111 |
int omap_3_1_mapping_disabled;
|
112 |
|
113 |
uint32_t gcr; |
114 |
uint32_t ocp; |
115 |
uint32_t caps[5];
|
116 |
uint32_t irqen[4];
|
117 |
uint32_t irqstat[4];
|
118 |
int run_count;
|
119 |
|
120 |
int chans;
|
121 |
struct omap_dma_channel_s ch[32]; |
122 |
struct omap_dma_lcd_channel_s lcd_ch;
|
123 |
}; |
124 |
|
125 |
/* Interrupts */
|
126 |
#define TIMEOUT_INTR (1 << 0) |
127 |
#define EVENT_DROP_INTR (1 << 1) |
128 |
#define HALF_FRAME_INTR (1 << 2) |
129 |
#define END_FRAME_INTR (1 << 3) |
130 |
#define LAST_FRAME_INTR (1 << 4) |
131 |
#define END_BLOCK_INTR (1 << 5) |
132 |
#define SYNC (1 << 6) |
133 |
#define END_PKT_INTR (1 << 7) |
134 |
#define TRANS_ERR_INTR (1 << 8) |
135 |
#define MISALIGN_INTR (1 << 11) |
136 |
|
137 |
static inline void omap_dma_interrupts_update(struct omap_dma_s *s) |
138 |
{ |
139 |
return s->intr_update(s);
|
140 |
} |
141 |
|
142 |
static void omap_dma_channel_load(struct omap_dma_s *s, |
143 |
struct omap_dma_channel_s *ch)
|
144 |
{ |
145 |
struct omap_dma_reg_set_s *a = &ch->active_set;
|
146 |
int i;
|
147 |
int omap_3_1 = !ch->omap_3_1_compatible_disable;
|
148 |
|
149 |
/*
|
150 |
* TODO: verify address ranges and alignment
|
151 |
* TODO: port endianness
|
152 |
*/
|
153 |
|
154 |
a->src = ch->addr[0];
|
155 |
a->dest = ch->addr[1];
|
156 |
a->frames = ch->frames; |
157 |
a->elements = ch->elements; |
158 |
a->pck_elements = ch->frame_index[!ch->src_sync]; |
159 |
a->frame = 0;
|
160 |
a->element = 0;
|
161 |
a->pck_element = 0;
|
162 |
|
163 |
if (unlikely(!ch->elements || !ch->frames)) {
|
164 |
printf("%s: bad DMA request\n", __FUNCTION__);
|
165 |
return;
|
166 |
} |
167 |
|
168 |
for (i = 0; i < 2; i ++) |
169 |
switch (ch->mode[i]) {
|
170 |
case constant:
|
171 |
a->elem_delta[i] = 0;
|
172 |
a->frame_delta[i] = 0;
|
173 |
break;
|
174 |
case post_incremented:
|
175 |
a->elem_delta[i] = ch->data_type; |
176 |
a->frame_delta[i] = 0;
|
177 |
break;
|
178 |
case single_index:
|
179 |
a->elem_delta[i] = ch->data_type + |
180 |
ch->element_index[omap_3_1 ? 0 : i] - 1; |
181 |
a->frame_delta[i] = 0;
|
182 |
break;
|
183 |
case double_index:
|
184 |
a->elem_delta[i] = ch->data_type + |
185 |
ch->element_index[omap_3_1 ? 0 : i] - 1; |
186 |
a->frame_delta[i] = ch->frame_index[omap_3_1 ? 0 : i] -
|
187 |
ch->element_index[omap_3_1 ? 0 : i];
|
188 |
break;
|
189 |
default:
|
190 |
break;
|
191 |
} |
192 |
} |
193 |
|
194 |
static void omap_dma_activate_channel(struct omap_dma_s *s, |
195 |
struct omap_dma_channel_s *ch)
|
196 |
{ |
197 |
if (!ch->active) {
|
198 |
ch->active = 1;
|
199 |
if (ch->sync)
|
200 |
ch->status |= SYNC; |
201 |
s->run_count ++; |
202 |
} |
203 |
|
204 |
if (s->delay && !qemu_timer_pending(s->tm))
|
205 |
qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay); |
206 |
} |
207 |
|
208 |
static void omap_dma_deactivate_channel(struct omap_dma_s *s, |
209 |
struct omap_dma_channel_s *ch)
|
210 |
{ |
211 |
/* Update cpc */
|
212 |
ch->cpc = ch->active_set.dest & 0xffff;
|
213 |
|
214 |
if (ch->pending_request && !ch->waiting_end_prog && ch->enable) {
|
215 |
/* Don't deactivate the channel */
|
216 |
ch->pending_request = 0;
|
217 |
return;
|
218 |
} |
219 |
|
220 |
/* Don't deactive the channel if it is synchronized and the DMA request is
|
221 |
active */
|
222 |
if (ch->sync && ch->enable && (s->drq & (1 << ch->sync))) |
223 |
return;
|
224 |
|
225 |
if (ch->active) {
|
226 |
ch->active = 0;
|
227 |
ch->status &= ~SYNC; |
228 |
s->run_count --; |
229 |
} |
230 |
|
231 |
if (!s->run_count)
|
232 |
qemu_del_timer(s->tm); |
233 |
} |
234 |
|
235 |
static void omap_dma_enable_channel(struct omap_dma_s *s, |
236 |
struct omap_dma_channel_s *ch)
|
237 |
{ |
238 |
if (!ch->enable) {
|
239 |
ch->enable = 1;
|
240 |
ch->waiting_end_prog = 0;
|
241 |
omap_dma_channel_load(s, ch); |
242 |
/* TODO: theoretically if ch->sync && ch->prefetch &&
|
243 |
* !s->drq[ch->sync], we should also activate and fetch from source
|
244 |
* and then stall until signalled. */
|
245 |
if ((!ch->sync) || (s->drq & (1 << ch->sync))) |
246 |
omap_dma_activate_channel(s, ch); |
247 |
} |
248 |
} |
249 |
|
250 |
static void omap_dma_disable_channel(struct omap_dma_s *s, |
251 |
struct omap_dma_channel_s *ch)
|
252 |
{ |
253 |
if (ch->enable) {
|
254 |
ch->enable = 0;
|
255 |
/* Discard any pending request */
|
256 |
ch->pending_request = 0;
|
257 |
omap_dma_deactivate_channel(s, ch); |
258 |
} |
259 |
} |
260 |
|
261 |
static void omap_dma_channel_end_prog(struct omap_dma_s *s, |
262 |
struct omap_dma_channel_s *ch)
|
263 |
{ |
264 |
if (ch->waiting_end_prog) {
|
265 |
ch->waiting_end_prog = 0;
|
266 |
if (!ch->sync || ch->pending_request) {
|
267 |
ch->pending_request = 0;
|
268 |
omap_dma_activate_channel(s, ch); |
269 |
} |
270 |
} |
271 |
} |
272 |
|
273 |
static void omap_dma_interrupts_3_1_update(struct omap_dma_s *s) |
274 |
{ |
275 |
struct omap_dma_channel_s *ch = s->ch;
|
276 |
|
277 |
/* First three interrupts are shared between two channels each. */
|
278 |
if (ch[0].status | ch[6].status) |
279 |
qemu_irq_raise(ch[0].irq);
|
280 |
if (ch[1].status | ch[7].status) |
281 |
qemu_irq_raise(ch[1].irq);
|
282 |
if (ch[2].status | ch[8].status) |
283 |
qemu_irq_raise(ch[2].irq);
|
284 |
if (ch[3].status) |
285 |
qemu_irq_raise(ch[3].irq);
|
286 |
if (ch[4].status) |
287 |
qemu_irq_raise(ch[4].irq);
|
288 |
if (ch[5].status) |
289 |
qemu_irq_raise(ch[5].irq);
|
290 |
} |
291 |
|
292 |
static void omap_dma_interrupts_3_2_update(struct omap_dma_s *s) |
293 |
{ |
294 |
struct omap_dma_channel_s *ch = s->ch;
|
295 |
int i;
|
296 |
|
297 |
for (i = s->chans; i; ch ++, i --)
|
298 |
if (ch->status)
|
299 |
qemu_irq_raise(ch->irq); |
300 |
} |
301 |
|
302 |
static void omap_dma_enable_3_1_mapping(struct omap_dma_s *s) |
303 |
{ |
304 |
s->omap_3_1_mapping_disabled = 0;
|
305 |
s->chans = 9;
|
306 |
s->intr_update = omap_dma_interrupts_3_1_update; |
307 |
} |
308 |
|
309 |
static void omap_dma_disable_3_1_mapping(struct omap_dma_s *s) |
310 |
{ |
311 |
s->omap_3_1_mapping_disabled = 1;
|
312 |
s->chans = 16;
|
313 |
s->intr_update = omap_dma_interrupts_3_2_update; |
314 |
} |
315 |
|
316 |
static void omap_dma_process_request(struct omap_dma_s *s, int request) |
317 |
{ |
318 |
int channel;
|
319 |
int drop_event = 0; |
320 |
struct omap_dma_channel_s *ch = s->ch;
|
321 |
|
322 |
for (channel = 0; channel < s->chans; channel ++, ch ++) { |
323 |
if (ch->enable && ch->sync == request) {
|
324 |
if (!ch->active)
|
325 |
omap_dma_activate_channel(s, ch); |
326 |
else if (!ch->pending_request) |
327 |
ch->pending_request = 1;
|
328 |
else {
|
329 |
/* Request collision */
|
330 |
/* Second request received while processing other request */
|
331 |
ch->status |= EVENT_DROP_INTR; |
332 |
drop_event = 1;
|
333 |
} |
334 |
} |
335 |
} |
336 |
|
337 |
if (drop_event)
|
338 |
omap_dma_interrupts_update(s); |
339 |
} |
340 |
|
341 |
static void omap_dma_channel_run(struct omap_dma_s *s) |
342 |
{ |
343 |
int n = s->chans;
|
344 |
uint16_t status; |
345 |
uint8_t value[4];
|
346 |
struct omap_dma_port_if_s *src_p, *dest_p;
|
347 |
struct omap_dma_reg_set_s *a;
|
348 |
struct omap_dma_channel_s *ch;
|
349 |
|
350 |
for (ch = s->ch; n; n --, ch ++) {
|
351 |
if (!ch->active)
|
352 |
continue;
|
353 |
|
354 |
a = &ch->active_set; |
355 |
|
356 |
src_p = &s->mpu->port[ch->port[0]];
|
357 |
dest_p = &s->mpu->port[ch->port[1]];
|
358 |
if ((!ch->constant_fill && !src_p->addr_valid(s->mpu, a->src)) ||
|
359 |
(!dest_p->addr_valid(s->mpu, a->dest))) { |
360 |
#if 0
|
361 |
/* Bus time-out */
|
362 |
if (ch->interrupts & TIMEOUT_INTR)
|
363 |
ch->status |= TIMEOUT_INTR;
|
364 |
omap_dma_deactivate_channel(s, ch);
|
365 |
continue;
|
366 |
#endif
|
367 |
printf("%s: Bus time-out in DMA%i operation\n",
|
368 |
__FUNCTION__, s->chans - n); |
369 |
} |
370 |
|
371 |
status = ch->status; |
372 |
while (status == ch->status && ch->active) {
|
373 |
/* Transfer a single element */
|
374 |
/* FIXME: check the endianness */
|
375 |
if (!ch->constant_fill)
|
376 |
cpu_physical_memory_read(a->src, value, ch->data_type); |
377 |
else
|
378 |
*(uint32_t *) value = ch->color; |
379 |
|
380 |
if (!ch->transparent_copy ||
|
381 |
*(uint32_t *) value != ch->color) |
382 |
cpu_physical_memory_write(a->dest, value, ch->data_type); |
383 |
|
384 |
a->src += a->elem_delta[0];
|
385 |
a->dest += a->elem_delta[1];
|
386 |
a->element ++; |
387 |
|
388 |
/* If the channel is element synchronized, deactivate it */
|
389 |
if (ch->sync && !ch->fs && !ch->bs)
|
390 |
omap_dma_deactivate_channel(s, ch); |
391 |
|
392 |
/* If it is the last frame, set the LAST_FRAME interrupt */
|
393 |
if (a->element == 1 && a->frame == a->frames - 1) |
394 |
if (ch->interrupts & LAST_FRAME_INTR)
|
395 |
ch->status |= LAST_FRAME_INTR; |
396 |
|
397 |
/* If the half of the frame was reached, set the HALF_FRAME
|
398 |
interrupt */
|
399 |
if (a->element == (a->elements >> 1)) |
400 |
if (ch->interrupts & HALF_FRAME_INTR)
|
401 |
ch->status |= HALF_FRAME_INTR; |
402 |
|
403 |
if (ch->fs && ch->bs) {
|
404 |
a->pck_element ++; |
405 |
/* Check if a full packet has beed transferred. */
|
406 |
if (a->pck_element == a->pck_elements) {
|
407 |
a->pck_element = 0;
|
408 |
|
409 |
/* Set the END_PKT interrupt */
|
410 |
if ((ch->interrupts & END_PKT_INTR) && !ch->src_sync)
|
411 |
ch->status |= END_PKT_INTR; |
412 |
|
413 |
/* If the channel is packet-synchronized, deactivate it */
|
414 |
if (ch->sync)
|
415 |
omap_dma_deactivate_channel(s, ch); |
416 |
} |
417 |
} |
418 |
|
419 |
if (a->element == a->elements) {
|
420 |
/* End of Frame */
|
421 |
a->element = 0;
|
422 |
a->src += a->frame_delta[0];
|
423 |
a->dest += a->frame_delta[1];
|
424 |
a->frame ++; |
425 |
|
426 |
/* If the channel is frame synchronized, deactivate it */
|
427 |
if (ch->sync && ch->fs && !ch->bs)
|
428 |
omap_dma_deactivate_channel(s, ch); |
429 |
|
430 |
/* If the channel is async, update cpc */
|
431 |
if (!ch->sync)
|
432 |
ch->cpc = a->dest & 0xffff;
|
433 |
|
434 |
/* Set the END_FRAME interrupt */
|
435 |
if (ch->interrupts & END_FRAME_INTR)
|
436 |
ch->status |= END_FRAME_INTR; |
437 |
|
438 |
if (a->frame == a->frames) {
|
439 |
/* End of Block */
|
440 |
/* Disable the channel */
|
441 |
|
442 |
if (ch->omap_3_1_compatible_disable) {
|
443 |
omap_dma_disable_channel(s, ch); |
444 |
if (ch->link_enabled)
|
445 |
omap_dma_enable_channel(s, |
446 |
&s->ch[ch->link_next_ch]); |
447 |
} else {
|
448 |
if (!ch->auto_init)
|
449 |
omap_dma_disable_channel(s, ch); |
450 |
else if (ch->repeat || ch->end_prog) |
451 |
omap_dma_channel_load(s, ch); |
452 |
else {
|
453 |
ch->waiting_end_prog = 1;
|
454 |
omap_dma_deactivate_channel(s, ch); |
455 |
} |
456 |
} |
457 |
|
458 |
if (ch->interrupts & END_BLOCK_INTR)
|
459 |
ch->status |= END_BLOCK_INTR; |
460 |
} |
461 |
} |
462 |
} |
463 |
} |
464 |
|
465 |
omap_dma_interrupts_update(s); |
466 |
if (s->run_count && s->delay)
|
467 |
qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay); |
468 |
} |
469 |
|
470 |
void omap_dma_reset(struct omap_dma_s *s) |
471 |
{ |
472 |
int i;
|
473 |
|
474 |
qemu_del_timer(s->tm); |
475 |
if (s->model < omap_dma_4)
|
476 |
s->gcr = 0x0004;
|
477 |
else
|
478 |
s->gcr = 0x00010010;
|
479 |
s->ocp = 0x00000000;
|
480 |
memset(&s->irqstat, 0, sizeof(s->irqstat)); |
481 |
memset(&s->irqen, 0, sizeof(s->irqen)); |
482 |
s->drq = 0x00000000;
|
483 |
s->run_count = 0;
|
484 |
s->lcd_ch.src = emiff; |
485 |
s->lcd_ch.condition = 0;
|
486 |
s->lcd_ch.interrupts = 0;
|
487 |
s->lcd_ch.dual = 0;
|
488 |
if (s->model < omap_dma_4)
|
489 |
omap_dma_enable_3_1_mapping(s); |
490 |
for (i = 0; i < s->chans; i ++) { |
491 |
s->ch[i].suspend = 0;
|
492 |
s->ch[i].prefetch = 0;
|
493 |
s->ch[i].buf_disable = 0;
|
494 |
s->ch[i].src_sync = 0;
|
495 |
memset(&s->ch[i].burst, 0, sizeof(s->ch[i].burst)); |
496 |
memset(&s->ch[i].port, 0, sizeof(s->ch[i].port)); |
497 |
memset(&s->ch[i].mode, 0, sizeof(s->ch[i].mode)); |
498 |
memset(&s->ch[i].frame_index, 0, sizeof(s->ch[i].frame_index)); |
499 |
memset(&s->ch[i].element_index, 0, sizeof(s->ch[i].element_index)); |
500 |
memset(&s->ch[i].endian, 0, sizeof(s->ch[i].endian)); |
501 |
memset(&s->ch[i].endian_lock, 0, sizeof(s->ch[i].endian_lock)); |
502 |
memset(&s->ch[i].translate, 0, sizeof(s->ch[i].translate)); |
503 |
s->ch[i].write_mode = 0;
|
504 |
s->ch[i].data_type = 0;
|
505 |
s->ch[i].transparent_copy = 0;
|
506 |
s->ch[i].constant_fill = 0;
|
507 |
s->ch[i].color = 0x00000000;
|
508 |
s->ch[i].end_prog = 0;
|
509 |
s->ch[i].repeat = 0;
|
510 |
s->ch[i].auto_init = 0;
|
511 |
s->ch[i].link_enabled = 0;
|
512 |
if (s->model < omap_dma_4)
|
513 |
s->ch[i].interrupts = 0x0003;
|
514 |
else
|
515 |
s->ch[i].interrupts = 0x0000;
|
516 |
s->ch[i].status = 0;
|
517 |
s->ch[i].cstatus = 0;
|
518 |
s->ch[i].active = 0;
|
519 |
s->ch[i].enable = 0;
|
520 |
s->ch[i].sync = 0;
|
521 |
s->ch[i].pending_request = 0;
|
522 |
s->ch[i].waiting_end_prog = 0;
|
523 |
s->ch[i].cpc = 0x0000;
|
524 |
s->ch[i].fs = 0;
|
525 |
s->ch[i].bs = 0;
|
526 |
s->ch[i].omap_3_1_compatible_disable = 0;
|
527 |
memset(&s->ch[i].active_set, 0, sizeof(s->ch[i].active_set)); |
528 |
s->ch[i].priority = 0;
|
529 |
s->ch[i].interleave_disabled = 0;
|
530 |
s->ch[i].type = 0;
|
531 |
} |
532 |
} |
533 |
|
534 |
static int omap_dma_ch_reg_read(struct omap_dma_s *s, |
535 |
struct omap_dma_channel_s *ch, int reg, uint16_t *value) |
536 |
{ |
537 |
switch (reg) {
|
538 |
case 0x00: /* SYS_DMA_CSDP_CH0 */ |
539 |
*value = (ch->burst[1] << 14) | |
540 |
(ch->pack[1] << 13) | |
541 |
(ch->port[1] << 9) | |
542 |
(ch->burst[0] << 7) | |
543 |
(ch->pack[0] << 6) | |
544 |
(ch->port[0] << 2) | |
545 |
(ch->data_type >> 1);
|
546 |
break;
|
547 |
|
548 |
case 0x02: /* SYS_DMA_CCR_CH0 */ |
549 |
if (s->model <= omap_dma_3_1)
|
550 |
*value = 0 << 10; /* FIFO_FLUSH reads as 0 */ |
551 |
else
|
552 |
*value = ch->omap_3_1_compatible_disable << 10;
|
553 |
*value |= (ch->mode[1] << 14) | |
554 |
(ch->mode[0] << 12) | |
555 |
(ch->end_prog << 11) |
|
556 |
(ch->repeat << 9) |
|
557 |
(ch->auto_init << 8) |
|
558 |
(ch->enable << 7) |
|
559 |
(ch->priority << 6) |
|
560 |
(ch->fs << 5) | ch->sync;
|
561 |
break;
|
562 |
|
563 |
case 0x04: /* SYS_DMA_CICR_CH0 */ |
564 |
*value = ch->interrupts; |
565 |
break;
|
566 |
|
567 |
case 0x06: /* SYS_DMA_CSR_CH0 */ |
568 |
*value = ch->status; |
569 |
ch->status &= SYNC; |
570 |
if (!ch->omap_3_1_compatible_disable && ch->sibling) {
|
571 |
*value |= (ch->sibling->status & 0x3f) << 6; |
572 |
ch->sibling->status &= SYNC; |
573 |
} |
574 |
qemu_irq_lower(ch->irq); |
575 |
break;
|
576 |
|
577 |
case 0x08: /* SYS_DMA_CSSA_L_CH0 */ |
578 |
*value = ch->addr[0] & 0x0000ffff; |
579 |
break;
|
580 |
|
581 |
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */ |
582 |
*value = ch->addr[0] >> 16; |
583 |
break;
|
584 |
|
585 |
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */ |
586 |
*value = ch->addr[1] & 0x0000ffff; |
587 |
break;
|
588 |
|
589 |
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */ |
590 |
*value = ch->addr[1] >> 16; |
591 |
break;
|
592 |
|
593 |
case 0x10: /* SYS_DMA_CEN_CH0 */ |
594 |
*value = ch->elements; |
595 |
break;
|
596 |
|
597 |
case 0x12: /* SYS_DMA_CFN_CH0 */ |
598 |
*value = ch->frames; |
599 |
break;
|
600 |
|
601 |
case 0x14: /* SYS_DMA_CFI_CH0 */ |
602 |
*value = ch->frame_index[0];
|
603 |
break;
|
604 |
|
605 |
case 0x16: /* SYS_DMA_CEI_CH0 */ |
606 |
*value = ch->element_index[0];
|
607 |
break;
|
608 |
|
609 |
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */ |
610 |
if (ch->omap_3_1_compatible_disable)
|
611 |
*value = ch->active_set.src & 0xffff; /* CSAC */ |
612 |
else
|
613 |
*value = ch->cpc; |
614 |
break;
|
615 |
|
616 |
case 0x1a: /* DMA_CDAC */ |
617 |
*value = ch->active_set.dest & 0xffff; /* CDAC */ |
618 |
break;
|
619 |
|
620 |
case 0x1c: /* DMA_CDEI */ |
621 |
*value = ch->element_index[1];
|
622 |
break;
|
623 |
|
624 |
case 0x1e: /* DMA_CDFI */ |
625 |
*value = ch->frame_index[1];
|
626 |
break;
|
627 |
|
628 |
case 0x20: /* DMA_COLOR_L */ |
629 |
*value = ch->color & 0xffff;
|
630 |
break;
|
631 |
|
632 |
case 0x22: /* DMA_COLOR_U */ |
633 |
*value = ch->color >> 16;
|
634 |
break;
|
635 |
|
636 |
case 0x24: /* DMA_CCR2 */ |
637 |
*value = (ch->bs << 2) |
|
638 |
(ch->transparent_copy << 1) |
|
639 |
ch->constant_fill; |
640 |
break;
|
641 |
|
642 |
case 0x28: /* DMA_CLNK_CTRL */ |
643 |
*value = (ch->link_enabled << 15) |
|
644 |
(ch->link_next_ch & 0xf);
|
645 |
break;
|
646 |
|
647 |
case 0x2a: /* DMA_LCH_CTRL */ |
648 |
*value = (ch->interleave_disabled << 15) |
|
649 |
ch->type; |
650 |
break;
|
651 |
|
652 |
default:
|
653 |
return 1; |
654 |
} |
655 |
return 0; |
656 |
} |
657 |
|
658 |
static int omap_dma_ch_reg_write(struct omap_dma_s *s, |
659 |
struct omap_dma_channel_s *ch, int reg, uint16_t value) |
660 |
{ |
661 |
switch (reg) {
|
662 |
case 0x00: /* SYS_DMA_CSDP_CH0 */ |
663 |
ch->burst[1] = (value & 0xc000) >> 14; |
664 |
ch->pack[1] = (value & 0x2000) >> 13; |
665 |
ch->port[1] = (enum omap_dma_port) ((value & 0x1e00) >> 9); |
666 |
ch->burst[0] = (value & 0x0180) >> 7; |
667 |
ch->pack[0] = (value & 0x0040) >> 6; |
668 |
ch->port[0] = (enum omap_dma_port) ((value & 0x003c) >> 2); |
669 |
ch->data_type = 1 << (value & 3); |
670 |
if (ch->port[0] >= __omap_dma_port_last) |
671 |
printf("%s: invalid DMA port %i\n", __FUNCTION__,
|
672 |
ch->port[0]);
|
673 |
if (ch->port[1] >= __omap_dma_port_last) |
674 |
printf("%s: invalid DMA port %i\n", __FUNCTION__,
|
675 |
ch->port[1]);
|
676 |
if ((value & 3) == 3) |
677 |
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
|
678 |
break;
|
679 |
|
680 |
case 0x02: /* SYS_DMA_CCR_CH0 */ |
681 |
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14); |
682 |
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12); |
683 |
ch->end_prog = (value & 0x0800) >> 11; |
684 |
if (s->model >= omap_dma_3_2)
|
685 |
ch->omap_3_1_compatible_disable = (value >> 10) & 0x1; |
686 |
ch->repeat = (value & 0x0200) >> 9; |
687 |
ch->auto_init = (value & 0x0100) >> 8; |
688 |
ch->priority = (value & 0x0040) >> 6; |
689 |
ch->fs = (value & 0x0020) >> 5; |
690 |
ch->sync = value & 0x001f;
|
691 |
|
692 |
if (value & 0x0080) |
693 |
omap_dma_enable_channel(s, ch); |
694 |
else
|
695 |
omap_dma_disable_channel(s, ch); |
696 |
|
697 |
if (ch->end_prog)
|
698 |
omap_dma_channel_end_prog(s, ch); |
699 |
|
700 |
break;
|
701 |
|
702 |
case 0x04: /* SYS_DMA_CICR_CH0 */ |
703 |
ch->interrupts = value & 0x3f;
|
704 |
break;
|
705 |
|
706 |
case 0x06: /* SYS_DMA_CSR_CH0 */ |
707 |
OMAP_RO_REG((target_phys_addr_t) reg); |
708 |
break;
|
709 |
|
710 |
case 0x08: /* SYS_DMA_CSSA_L_CH0 */ |
711 |
ch->addr[0] &= 0xffff0000; |
712 |
ch->addr[0] |= value;
|
713 |
break;
|
714 |
|
715 |
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */ |
716 |
ch->addr[0] &= 0x0000ffff; |
717 |
ch->addr[0] |= (uint32_t) value << 16; |
718 |
break;
|
719 |
|
720 |
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */ |
721 |
ch->addr[1] &= 0xffff0000; |
722 |
ch->addr[1] |= value;
|
723 |
break;
|
724 |
|
725 |
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */ |
726 |
ch->addr[1] &= 0x0000ffff; |
727 |
ch->addr[1] |= (uint32_t) value << 16; |
728 |
break;
|
729 |
|
730 |
case 0x10: /* SYS_DMA_CEN_CH0 */ |
731 |
ch->elements = value; |
732 |
break;
|
733 |
|
734 |
case 0x12: /* SYS_DMA_CFN_CH0 */ |
735 |
ch->frames = value; |
736 |
break;
|
737 |
|
738 |
case 0x14: /* SYS_DMA_CFI_CH0 */ |
739 |
ch->frame_index[0] = (int16_t) value;
|
740 |
break;
|
741 |
|
742 |
case 0x16: /* SYS_DMA_CEI_CH0 */ |
743 |
ch->element_index[0] = (int16_t) value;
|
744 |
break;
|
745 |
|
746 |
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */ |
747 |
OMAP_RO_REG((target_phys_addr_t) reg); |
748 |
break;
|
749 |
|
750 |
case 0x1c: /* DMA_CDEI */ |
751 |
ch->element_index[1] = (int16_t) value;
|
752 |
break;
|
753 |
|
754 |
case 0x1e: /* DMA_CDFI */ |
755 |
ch->frame_index[1] = (int16_t) value;
|
756 |
break;
|
757 |
|
758 |
case 0x20: /* DMA_COLOR_L */ |
759 |
ch->color &= 0xffff0000;
|
760 |
ch->color |= value; |
761 |
break;
|
762 |
|
763 |
case 0x22: /* DMA_COLOR_U */ |
764 |
ch->color &= 0xffff;
|
765 |
ch->color |= value << 16;
|
766 |
break;
|
767 |
|
768 |
case 0x24: /* DMA_CCR2 */ |
769 |
ch->bs = (value >> 2) & 0x1; |
770 |
ch->transparent_copy = (value >> 1) & 0x1; |
771 |
ch->constant_fill = value & 0x1;
|
772 |
break;
|
773 |
|
774 |
case 0x28: /* DMA_CLNK_CTRL */ |
775 |
ch->link_enabled = (value >> 15) & 0x1; |
776 |
if (value & (1 << 14)) { /* Stop_Lnk */ |
777 |
ch->link_enabled = 0;
|
778 |
omap_dma_disable_channel(s, ch); |
779 |
} |
780 |
ch->link_next_ch = value & 0x1f;
|
781 |
break;
|
782 |
|
783 |
case 0x2a: /* DMA_LCH_CTRL */ |
784 |
ch->interleave_disabled = (value >> 15) & 0x1; |
785 |
ch->type = value & 0xf;
|
786 |
break;
|
787 |
|
788 |
default:
|
789 |
return 1; |
790 |
} |
791 |
return 0; |
792 |
} |
793 |
|
794 |
static int omap_dma_3_2_lcd_write(struct omap_dma_lcd_channel_s *s, int offset, |
795 |
uint16_t value) |
796 |
{ |
797 |
switch (offset) {
|
798 |
case 0xbc0: /* DMA_LCD_CSDP */ |
799 |
s->brust_f2 = (value >> 14) & 0x3; |
800 |
s->pack_f2 = (value >> 13) & 0x1; |
801 |
s->data_type_f2 = (1 << ((value >> 11) & 0x3)); |
802 |
s->brust_f1 = (value >> 7) & 0x3; |
803 |
s->pack_f1 = (value >> 6) & 0x1; |
804 |
s->data_type_f1 = (1 << ((value >> 0) & 0x3)); |
805 |
break;
|
806 |
|
807 |
case 0xbc2: /* DMA_LCD_CCR */ |
808 |
s->mode_f2 = (value >> 14) & 0x3; |
809 |
s->mode_f1 = (value >> 12) & 0x3; |
810 |
s->end_prog = (value >> 11) & 0x1; |
811 |
s->omap_3_1_compatible_disable = (value >> 10) & 0x1; |
812 |
s->repeat = (value >> 9) & 0x1; |
813 |
s->auto_init = (value >> 8) & 0x1; |
814 |
s->running = (value >> 7) & 0x1; |
815 |
s->priority = (value >> 6) & 0x1; |
816 |
s->bs = (value >> 4) & 0x1; |
817 |
break;
|
818 |
|
819 |
case 0xbc4: /* DMA_LCD_CTRL */ |
820 |
s->dst = (value >> 8) & 0x1; |
821 |
s->src = ((value >> 6) & 0x3) << 1; |
822 |
s->condition = 0;
|
823 |
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
|
824 |
s->interrupts = (value >> 1) & 1; |
825 |
s->dual = value & 1;
|
826 |
break;
|
827 |
|
828 |
case 0xbc8: /* TOP_B1_L */ |
829 |
s->src_f1_top &= 0xffff0000;
|
830 |
s->src_f1_top |= 0x0000ffff & value;
|
831 |
break;
|
832 |
|
833 |
case 0xbca: /* TOP_B1_U */ |
834 |
s->src_f1_top &= 0x0000ffff;
|
835 |
s->src_f1_top |= value << 16;
|
836 |
break;
|
837 |
|
838 |
case 0xbcc: /* BOT_B1_L */ |
839 |
s->src_f1_bottom &= 0xffff0000;
|
840 |
s->src_f1_bottom |= 0x0000ffff & value;
|
841 |
break;
|
842 |
|
843 |
case 0xbce: /* BOT_B1_U */ |
844 |
s->src_f1_bottom &= 0x0000ffff;
|
845 |
s->src_f1_bottom |= (uint32_t) value << 16;
|
846 |
break;
|
847 |
|
848 |
case 0xbd0: /* TOP_B2_L */ |
849 |
s->src_f2_top &= 0xffff0000;
|
850 |
s->src_f2_top |= 0x0000ffff & value;
|
851 |
break;
|
852 |
|
853 |
case 0xbd2: /* TOP_B2_U */ |
854 |
s->src_f2_top &= 0x0000ffff;
|
855 |
s->src_f2_top |= (uint32_t) value << 16;
|
856 |
break;
|
857 |
|
858 |
case 0xbd4: /* BOT_B2_L */ |
859 |
s->src_f2_bottom &= 0xffff0000;
|
860 |
s->src_f2_bottom |= 0x0000ffff & value;
|
861 |
break;
|
862 |
|
863 |
case 0xbd6: /* BOT_B2_U */ |
864 |
s->src_f2_bottom &= 0x0000ffff;
|
865 |
s->src_f2_bottom |= (uint32_t) value << 16;
|
866 |
break;
|
867 |
|
868 |
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */ |
869 |
s->element_index_f1 = value; |
870 |
break;
|
871 |
|
872 |
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */ |
873 |
s->frame_index_f1 &= 0xffff0000;
|
874 |
s->frame_index_f1 |= 0x0000ffff & value;
|
875 |
break;
|
876 |
|
877 |
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */ |
878 |
s->frame_index_f1 &= 0x0000ffff;
|
879 |
s->frame_index_f1 |= (uint32_t) value << 16;
|
880 |
break;
|
881 |
|
882 |
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */ |
883 |
s->element_index_f2 = value; |
884 |
break;
|
885 |
|
886 |
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */ |
887 |
s->frame_index_f2 &= 0xffff0000;
|
888 |
s->frame_index_f2 |= 0x0000ffff & value;
|
889 |
break;
|
890 |
|
891 |
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */ |
892 |
s->frame_index_f2 &= 0x0000ffff;
|
893 |
s->frame_index_f2 |= (uint32_t) value << 16;
|
894 |
break;
|
895 |
|
896 |
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */ |
897 |
s->elements_f1 = value; |
898 |
break;
|
899 |
|
900 |
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */ |
901 |
s->frames_f1 = value; |
902 |
break;
|
903 |
|
904 |
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */ |
905 |
s->elements_f2 = value; |
906 |
break;
|
907 |
|
908 |
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */ |
909 |
s->frames_f2 = value; |
910 |
break;
|
911 |
|
912 |
case 0xbea: /* DMA_LCD_LCH_CTRL */ |
913 |
s->lch_type = value & 0xf;
|
914 |
break;
|
915 |
|
916 |
default:
|
917 |
return 1; |
918 |
} |
919 |
return 0; |
920 |
} |
921 |
|
922 |
static int omap_dma_3_2_lcd_read(struct omap_dma_lcd_channel_s *s, int offset, |
923 |
uint16_t *ret) |
924 |
{ |
925 |
switch (offset) {
|
926 |
case 0xbc0: /* DMA_LCD_CSDP */ |
927 |
*ret = (s->brust_f2 << 14) |
|
928 |
(s->pack_f2 << 13) |
|
929 |
((s->data_type_f2 >> 1) << 11) | |
930 |
(s->brust_f1 << 7) |
|
931 |
(s->pack_f1 << 6) |
|
932 |
((s->data_type_f1 >> 1) << 0); |
933 |
break;
|
934 |
|
935 |
case 0xbc2: /* DMA_LCD_CCR */ |
936 |
*ret = (s->mode_f2 << 14) |
|
937 |
(s->mode_f1 << 12) |
|
938 |
(s->end_prog << 11) |
|
939 |
(s->omap_3_1_compatible_disable << 10) |
|
940 |
(s->repeat << 9) |
|
941 |
(s->auto_init << 8) |
|
942 |
(s->running << 7) |
|
943 |
(s->priority << 6) |
|
944 |
(s->bs << 4);
|
945 |
break;
|
946 |
|
947 |
case 0xbc4: /* DMA_LCD_CTRL */ |
948 |
qemu_irq_lower(s->irq); |
949 |
*ret = (s->dst << 8) |
|
950 |
((s->src & 0x6) << 5) | |
951 |
(s->condition << 3) |
|
952 |
(s->interrupts << 1) |
|
953 |
s->dual; |
954 |
break;
|
955 |
|
956 |
case 0xbc8: /* TOP_B1_L */ |
957 |
*ret = s->src_f1_top & 0xffff;
|
958 |
break;
|
959 |
|
960 |
case 0xbca: /* TOP_B1_U */ |
961 |
*ret = s->src_f1_top >> 16;
|
962 |
break;
|
963 |
|
964 |
case 0xbcc: /* BOT_B1_L */ |
965 |
*ret = s->src_f1_bottom & 0xffff;
|
966 |
break;
|
967 |
|
968 |
case 0xbce: /* BOT_B1_U */ |
969 |
*ret = s->src_f1_bottom >> 16;
|
970 |
break;
|
971 |
|
972 |
case 0xbd0: /* TOP_B2_L */ |
973 |
*ret = s->src_f2_top & 0xffff;
|
974 |
break;
|
975 |
|
976 |
case 0xbd2: /* TOP_B2_U */ |
977 |
*ret = s->src_f2_top >> 16;
|
978 |
break;
|
979 |
|
980 |
case 0xbd4: /* BOT_B2_L */ |
981 |
*ret = s->src_f2_bottom & 0xffff;
|
982 |
break;
|
983 |
|
984 |
case 0xbd6: /* BOT_B2_U */ |
985 |
*ret = s->src_f2_bottom >> 16;
|
986 |
break;
|
987 |
|
988 |
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */ |
989 |
*ret = s->element_index_f1; |
990 |
break;
|
991 |
|
992 |
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */ |
993 |
*ret = s->frame_index_f1 & 0xffff;
|
994 |
break;
|
995 |
|
996 |
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */ |
997 |
*ret = s->frame_index_f1 >> 16;
|
998 |
break;
|
999 |
|
1000 |
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */ |
1001 |
*ret = s->element_index_f2; |
1002 |
break;
|
1003 |
|
1004 |
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */ |
1005 |
*ret = s->frame_index_f2 & 0xffff;
|
1006 |
break;
|
1007 |
|
1008 |
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */ |
1009 |
*ret = s->frame_index_f2 >> 16;
|
1010 |
break;
|
1011 |
|
1012 |
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */ |
1013 |
*ret = s->elements_f1; |
1014 |
break;
|
1015 |
|
1016 |
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */ |
1017 |
*ret = s->frames_f1; |
1018 |
break;
|
1019 |
|
1020 |
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */ |
1021 |
*ret = s->elements_f2; |
1022 |
break;
|
1023 |
|
1024 |
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */ |
1025 |
*ret = s->frames_f2; |
1026 |
break;
|
1027 |
|
1028 |
case 0xbea: /* DMA_LCD_LCH_CTRL */ |
1029 |
*ret = s->lch_type; |
1030 |
break;
|
1031 |
|
1032 |
default:
|
1033 |
return 1; |
1034 |
} |
1035 |
return 0; |
1036 |
} |
1037 |
|
1038 |
static int omap_dma_3_1_lcd_write(struct omap_dma_lcd_channel_s *s, int offset, |
1039 |
uint16_t value) |
1040 |
{ |
1041 |
switch (offset) {
|
1042 |
case 0x300: /* SYS_DMA_LCD_CTRL */ |
1043 |
s->src = (value & 0x40) ? imif : emiff;
|
1044 |
s->condition = 0;
|
1045 |
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
|
1046 |
s->interrupts = (value >> 1) & 1; |
1047 |
s->dual = value & 1;
|
1048 |
break;
|
1049 |
|
1050 |
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */ |
1051 |
s->src_f1_top &= 0xffff0000;
|
1052 |
s->src_f1_top |= 0x0000ffff & value;
|
1053 |
break;
|
1054 |
|
1055 |
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */ |
1056 |
s->src_f1_top &= 0x0000ffff;
|
1057 |
s->src_f1_top |= value << 16;
|
1058 |
break;
|
1059 |
|
1060 |
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */ |
1061 |
s->src_f1_bottom &= 0xffff0000;
|
1062 |
s->src_f1_bottom |= 0x0000ffff & value;
|
1063 |
break;
|
1064 |
|
1065 |
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */ |
1066 |
s->src_f1_bottom &= 0x0000ffff;
|
1067 |
s->src_f1_bottom |= value << 16;
|
1068 |
break;
|
1069 |
|
1070 |
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */ |
1071 |
s->src_f2_top &= 0xffff0000;
|
1072 |
s->src_f2_top |= 0x0000ffff & value;
|
1073 |
break;
|
1074 |
|
1075 |
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */ |
1076 |
s->src_f2_top &= 0x0000ffff;
|
1077 |
s->src_f2_top |= value << 16;
|
1078 |
break;
|
1079 |
|
1080 |
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */ |
1081 |
s->src_f2_bottom &= 0xffff0000;
|
1082 |
s->src_f2_bottom |= 0x0000ffff & value;
|
1083 |
break;
|
1084 |
|
1085 |
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */ |
1086 |
s->src_f2_bottom &= 0x0000ffff;
|
1087 |
s->src_f2_bottom |= value << 16;
|
1088 |
break;
|
1089 |
|
1090 |
default:
|
1091 |
return 1; |
1092 |
} |
1093 |
return 0; |
1094 |
} |
1095 |
|
1096 |
static int omap_dma_3_1_lcd_read(struct omap_dma_lcd_channel_s *s, int offset, |
1097 |
uint16_t *ret) |
1098 |
{ |
1099 |
int i;
|
1100 |
|
1101 |
switch (offset) {
|
1102 |
case 0x300: /* SYS_DMA_LCD_CTRL */ |
1103 |
i = s->condition; |
1104 |
s->condition = 0;
|
1105 |
qemu_irq_lower(s->irq); |
1106 |
*ret = ((s->src == imif) << 6) | (i << 3) | |
1107 |
(s->interrupts << 1) | s->dual;
|
1108 |
break;
|
1109 |
|
1110 |
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */ |
1111 |
*ret = s->src_f1_top & 0xffff;
|
1112 |
break;
|
1113 |
|
1114 |
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */ |
1115 |
*ret = s->src_f1_top >> 16;
|
1116 |
break;
|
1117 |
|
1118 |
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */ |
1119 |
*ret = s->src_f1_bottom & 0xffff;
|
1120 |
break;
|
1121 |
|
1122 |
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */ |
1123 |
*ret = s->src_f1_bottom >> 16;
|
1124 |
break;
|
1125 |
|
1126 |
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */ |
1127 |
*ret = s->src_f2_top & 0xffff;
|
1128 |
break;
|
1129 |
|
1130 |
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */ |
1131 |
*ret = s->src_f2_top >> 16;
|
1132 |
break;
|
1133 |
|
1134 |
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */ |
1135 |
*ret = s->src_f2_bottom & 0xffff;
|
1136 |
break;
|
1137 |
|
1138 |
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */ |
1139 |
*ret = s->src_f2_bottom >> 16;
|
1140 |
break;
|
1141 |
|
1142 |
default:
|
1143 |
return 1; |
1144 |
} |
1145 |
return 0; |
1146 |
} |
1147 |
|
1148 |
static int omap_dma_sys_write(struct omap_dma_s *s, int offset, uint16_t value) |
1149 |
{ |
1150 |
switch (offset) {
|
1151 |
case 0x400: /* SYS_DMA_GCR */ |
1152 |
s->gcr = value; |
1153 |
break;
|
1154 |
|
1155 |
case 0x404: /* DMA_GSCR */ |
1156 |
if (value & 0x8) |
1157 |
omap_dma_disable_3_1_mapping(s); |
1158 |
else
|
1159 |
omap_dma_enable_3_1_mapping(s); |
1160 |
break;
|
1161 |
|
1162 |
case 0x408: /* DMA_GRST */ |
1163 |
if (value & 0x1) |
1164 |
omap_dma_reset(s); |
1165 |
break;
|
1166 |
|
1167 |
default:
|
1168 |
return 1; |
1169 |
} |
1170 |
return 0; |
1171 |
} |
1172 |
|
1173 |
static int omap_dma_sys_read(struct omap_dma_s *s, int offset, |
1174 |
uint16_t *ret) |
1175 |
{ |
1176 |
switch (offset) {
|
1177 |
case 0x400: /* SYS_DMA_GCR */ |
1178 |
*ret = s->gcr; |
1179 |
break;
|
1180 |
|
1181 |
case 0x404: /* DMA_GSCR */ |
1182 |
*ret = s->omap_3_1_mapping_disabled << 3;
|
1183 |
break;
|
1184 |
|
1185 |
case 0x408: /* DMA_GRST */ |
1186 |
*ret = 0;
|
1187 |
break;
|
1188 |
|
1189 |
case 0x442: /* DMA_HW_ID */ |
1190 |
case 0x444: /* DMA_PCh2_ID */ |
1191 |
case 0x446: /* DMA_PCh0_ID */ |
1192 |
case 0x448: /* DMA_PCh1_ID */ |
1193 |
case 0x44a: /* DMA_PChG_ID */ |
1194 |
case 0x44c: /* DMA_PChD_ID */ |
1195 |
*ret = 1;
|
1196 |
break;
|
1197 |
|
1198 |
case 0x44e: /* DMA_CAPS_0_U */ |
1199 |
*ret = (s->caps[0] >> 16) & 0xffff; |
1200 |
break;
|
1201 |
case 0x450: /* DMA_CAPS_0_L */ |
1202 |
*ret = (s->caps[0] >> 0) & 0xffff; |
1203 |
break;
|
1204 |
|
1205 |
case 0x452: /* DMA_CAPS_1_U */ |
1206 |
*ret = (s->caps[1] >> 16) & 0xffff; |
1207 |
break;
|
1208 |
case 0x454: /* DMA_CAPS_1_L */ |
1209 |
*ret = (s->caps[1] >> 0) & 0xffff; |
1210 |
break;
|
1211 |
|
1212 |
case 0x456: /* DMA_CAPS_2 */ |
1213 |
*ret = s->caps[2];
|
1214 |
break;
|
1215 |
|
1216 |
case 0x458: /* DMA_CAPS_3 */ |
1217 |
*ret = s->caps[3];
|
1218 |
break;
|
1219 |
|
1220 |
case 0x45a: /* DMA_CAPS_4 */ |
1221 |
*ret = s->caps[4];
|
1222 |
break;
|
1223 |
|
1224 |
case 0x460: /* DMA_PCh2_SR */ |
1225 |
case 0x480: /* DMA_PCh0_SR */ |
1226 |
case 0x482: /* DMA_PCh1_SR */ |
1227 |
case 0x4c0: /* DMA_PChD_SR_0 */ |
1228 |
printf("%s: Physical Channel Status Registers not implemented.\n",
|
1229 |
__FUNCTION__); |
1230 |
*ret = 0xff;
|
1231 |
break;
|
1232 |
|
1233 |
default:
|
1234 |
return 1; |
1235 |
} |
1236 |
return 0; |
1237 |
} |
1238 |
|
1239 |
static uint32_t omap_dma_read(void *opaque, target_phys_addr_t addr) |
1240 |
{ |
1241 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1242 |
int reg, ch, offset = addr - s->base;
|
1243 |
uint16_t ret; |
1244 |
|
1245 |
switch (offset) {
|
1246 |
case 0x300 ... 0x3fe: |
1247 |
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
|
1248 |
if (omap_dma_3_1_lcd_read(&s->lcd_ch, offset, &ret))
|
1249 |
break;
|
1250 |
return ret;
|
1251 |
} |
1252 |
/* Fall through. */
|
1253 |
case 0x000 ... 0x2fe: |
1254 |
reg = offset & 0x3f;
|
1255 |
ch = (offset >> 6) & 0x0f; |
1256 |
if (omap_dma_ch_reg_read(s, &s->ch[ch], reg, &ret))
|
1257 |
break;
|
1258 |
return ret;
|
1259 |
|
1260 |
case 0x404 ... 0x4fe: |
1261 |
if (s->model <= omap_dma_3_1)
|
1262 |
break;
|
1263 |
/* Fall through. */
|
1264 |
case 0x400: |
1265 |
if (omap_dma_sys_read(s, offset, &ret))
|
1266 |
break;
|
1267 |
return ret;
|
1268 |
|
1269 |
case 0xb00 ... 0xbfe: |
1270 |
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
|
1271 |
if (omap_dma_3_2_lcd_read(&s->lcd_ch, offset, &ret))
|
1272 |
break;
|
1273 |
return ret;
|
1274 |
} |
1275 |
break;
|
1276 |
} |
1277 |
|
1278 |
OMAP_BAD_REG(addr); |
1279 |
return 0; |
1280 |
} |
1281 |
|
1282 |
static void omap_dma_write(void *opaque, target_phys_addr_t addr, |
1283 |
uint32_t value) |
1284 |
{ |
1285 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1286 |
int reg, ch, offset = addr - s->base;
|
1287 |
|
1288 |
switch (offset) {
|
1289 |
case 0x300 ... 0x3fe: |
1290 |
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
|
1291 |
if (omap_dma_3_1_lcd_write(&s->lcd_ch, offset, value))
|
1292 |
break;
|
1293 |
return;
|
1294 |
} |
1295 |
/* Fall through. */
|
1296 |
case 0x000 ... 0x2fe: |
1297 |
reg = offset & 0x3f;
|
1298 |
ch = (offset >> 6) & 0x0f; |
1299 |
if (omap_dma_ch_reg_write(s, &s->ch[ch], reg, value))
|
1300 |
break;
|
1301 |
return;
|
1302 |
|
1303 |
case 0x404 ... 0x4fe: |
1304 |
if (s->model <= omap_dma_3_1)
|
1305 |
break;
|
1306 |
case 0x400: |
1307 |
/* Fall through. */
|
1308 |
if (omap_dma_sys_write(s, offset, value))
|
1309 |
break;
|
1310 |
return;
|
1311 |
|
1312 |
case 0xb00 ... 0xbfe: |
1313 |
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
|
1314 |
if (omap_dma_3_2_lcd_write(&s->lcd_ch, offset, value))
|
1315 |
break;
|
1316 |
return;
|
1317 |
} |
1318 |
break;
|
1319 |
} |
1320 |
|
1321 |
OMAP_BAD_REG(addr); |
1322 |
} |
1323 |
|
1324 |
static CPUReadMemoryFunc *omap_dma_readfn[] = {
|
1325 |
omap_badwidth_read16, |
1326 |
omap_dma_read, |
1327 |
omap_badwidth_read16, |
1328 |
}; |
1329 |
|
1330 |
static CPUWriteMemoryFunc *omap_dma_writefn[] = {
|
1331 |
omap_badwidth_write16, |
1332 |
omap_dma_write, |
1333 |
omap_badwidth_write16, |
1334 |
}; |
1335 |
|
1336 |
static void omap_dma_request(void *opaque, int drq, int req) |
1337 |
{ |
1338 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1339 |
/* The request pins are level triggered in QEMU. */
|
1340 |
if (req) {
|
1341 |
if (~s->drq & (1 << drq)) { |
1342 |
s->drq |= 1 << drq;
|
1343 |
omap_dma_process_request(s, drq); |
1344 |
} |
1345 |
} else
|
1346 |
s->drq &= ~(1 << drq);
|
1347 |
} |
1348 |
|
1349 |
static void omap_dma_clk_update(void *opaque, int line, int on) |
1350 |
{ |
1351 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1352 |
|
1353 |
if (on) {
|
1354 |
/* TODO: make a clever calculation */
|
1355 |
s->delay = ticks_per_sec >> 8;
|
1356 |
if (s->run_count)
|
1357 |
qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay); |
1358 |
} else {
|
1359 |
s->delay = 0;
|
1360 |
qemu_del_timer(s->tm); |
1361 |
} |
1362 |
} |
1363 |
|
1364 |
static void omap_dma_setcaps(struct omap_dma_s *s) |
1365 |
{ |
1366 |
switch (s->model) {
|
1367 |
default:
|
1368 |
case omap_dma_3_1:
|
1369 |
break;
|
1370 |
case omap_dma_3_2:
|
1371 |
case omap_dma_4:
|
1372 |
/* XXX Only available for sDMA */
|
1373 |
s->caps[0] =
|
1374 |
(1 << 19) | /* Constant Fill Capability */ |
1375 |
(1 << 18); /* Transparent BLT Capability */ |
1376 |
s->caps[1] =
|
1377 |
(1 << 1); /* 1-bit palettized capability (DMA 3.2 only) */ |
1378 |
s->caps[2] =
|
1379 |
(1 << 8) | /* SEPARATE_SRC_AND_DST_INDEX_CPBLTY */ |
1380 |
(1 << 7) | /* DST_DOUBLE_INDEX_ADRS_CPBLTY */ |
1381 |
(1 << 6) | /* DST_SINGLE_INDEX_ADRS_CPBLTY */ |
1382 |
(1 << 5) | /* DST_POST_INCRMNT_ADRS_CPBLTY */ |
1383 |
(1 << 4) | /* DST_CONST_ADRS_CPBLTY */ |
1384 |
(1 << 3) | /* SRC_DOUBLE_INDEX_ADRS_CPBLTY */ |
1385 |
(1 << 2) | /* SRC_SINGLE_INDEX_ADRS_CPBLTY */ |
1386 |
(1 << 1) | /* SRC_POST_INCRMNT_ADRS_CPBLTY */ |
1387 |
(1 << 0); /* SRC_CONST_ADRS_CPBLTY */ |
1388 |
s->caps[3] =
|
1389 |
(1 << 6) | /* BLOCK_SYNCHR_CPBLTY (DMA 4 only) */ |
1390 |
(1 << 7) | /* PKT_SYNCHR_CPBLTY (DMA 4 only) */ |
1391 |
(1 << 5) | /* CHANNEL_CHAINING_CPBLTY */ |
1392 |
(1 << 4) | /* LCh_INTERLEAVE_CPBLTY */ |
1393 |
(1 << 3) | /* AUTOINIT_REPEAT_CPBLTY (DMA 3.2 only) */ |
1394 |
(1 << 2) | /* AUTOINIT_ENDPROG_CPBLTY (DMA 3.2 only) */ |
1395 |
(1 << 1) | /* FRAME_SYNCHR_CPBLTY */ |
1396 |
(1 << 0); /* ELMNT_SYNCHR_CPBLTY */ |
1397 |
s->caps[4] =
|
1398 |
(1 << 7) | /* PKT_INTERRUPT_CPBLTY (DMA 4 only) */ |
1399 |
(1 << 6) | /* SYNC_STATUS_CPBLTY */ |
1400 |
(1 << 5) | /* BLOCK_INTERRUPT_CPBLTY */ |
1401 |
(1 << 4) | /* LAST_FRAME_INTERRUPT_CPBLTY */ |
1402 |
(1 << 3) | /* FRAME_INTERRUPT_CPBLTY */ |
1403 |
(1 << 2) | /* HALF_FRAME_INTERRUPT_CPBLTY */ |
1404 |
(1 << 1) | /* EVENT_DROP_INTERRUPT_CPBLTY */ |
1405 |
(1 << 0); /* TIMEOUT_INTERRUPT_CPBLTY (DMA 3.2 only) */ |
1406 |
break;
|
1407 |
} |
1408 |
} |
1409 |
|
1410 |
struct omap_dma_s *omap_dma_init(target_phys_addr_t base, qemu_irq *irqs,
|
1411 |
qemu_irq lcd_irq, struct omap_mpu_state_s *mpu, omap_clk clk,
|
1412 |
enum omap_dma_model model)
|
1413 |
{ |
1414 |
int iomemtype, num_irqs, memsize, i;
|
1415 |
struct omap_dma_s *s = (struct omap_dma_s *) |
1416 |
qemu_mallocz(sizeof(struct omap_dma_s)); |
1417 |
|
1418 |
if (model <= omap_dma_3_1) {
|
1419 |
num_irqs = 6;
|
1420 |
memsize = 0x800;
|
1421 |
} else {
|
1422 |
num_irqs = 16;
|
1423 |
memsize = 0xc00;
|
1424 |
} |
1425 |
s->base = base; |
1426 |
s->model = model; |
1427 |
s->mpu = mpu; |
1428 |
s->clk = clk; |
1429 |
s->lcd_ch.irq = lcd_irq; |
1430 |
s->lcd_ch.mpu = mpu; |
1431 |
omap_dma_setcaps(s); |
1432 |
while (num_irqs --)
|
1433 |
s->ch[num_irqs].irq = irqs[num_irqs]; |
1434 |
for (i = 0; i < 3; i ++) { |
1435 |
s->ch[i].sibling = &s->ch[i + 6];
|
1436 |
s->ch[i + 6].sibling = &s->ch[i];
|
1437 |
} |
1438 |
s->tm = qemu_new_timer(vm_clock, (QEMUTimerCB *) omap_dma_channel_run, s); |
1439 |
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]); |
1440 |
mpu->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
|
1441 |
omap_dma_reset(s); |
1442 |
omap_dma_clk_update(s, 0, 1); |
1443 |
|
1444 |
iomemtype = cpu_register_io_memory(0, omap_dma_readfn,
|
1445 |
omap_dma_writefn, s); |
1446 |
cpu_register_physical_memory(s->base, memsize, iomemtype); |
1447 |
|
1448 |
return s;
|
1449 |
} |
1450 |
|
1451 |
static void omap_dma_interrupts_4_update(struct omap_dma_s *s) |
1452 |
{ |
1453 |
struct omap_dma_channel_s *ch = s->ch;
|
1454 |
uint32_t bmp, bit; |
1455 |
|
1456 |
for (bmp = 0, bit = 1; bit; ch ++, bit <<= 1) |
1457 |
if (ch->status) {
|
1458 |
bmp |= bit; |
1459 |
ch->cstatus |= ch->status; |
1460 |
ch->status = 0;
|
1461 |
} |
1462 |
if ((s->irqstat[0] |= s->irqen[0] & bmp)) |
1463 |
qemu_irq_raise(s->irq[0]);
|
1464 |
if ((s->irqstat[1] |= s->irqen[1] & bmp)) |
1465 |
qemu_irq_raise(s->irq[1]);
|
1466 |
if ((s->irqstat[2] |= s->irqen[2] & bmp)) |
1467 |
qemu_irq_raise(s->irq[2]);
|
1468 |
if ((s->irqstat[3] |= s->irqen[3] & bmp)) |
1469 |
qemu_irq_raise(s->irq[3]);
|
1470 |
} |
1471 |
|
1472 |
static uint32_t omap_dma4_read(void *opaque, target_phys_addr_t addr) |
1473 |
{ |
1474 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1475 |
int irqn = 0, chnum, offset = addr - s->base; |
1476 |
struct omap_dma_channel_s *ch;
|
1477 |
|
1478 |
switch (offset) {
|
1479 |
case 0x00: /* DMA4_REVISION */ |
1480 |
return 0x40; |
1481 |
|
1482 |
case 0x14: /* DMA4_IRQSTATUS_L3 */ |
1483 |
irqn ++; |
1484 |
case 0x10: /* DMA4_IRQSTATUS_L2 */ |
1485 |
irqn ++; |
1486 |
case 0x0c: /* DMA4_IRQSTATUS_L1 */ |
1487 |
irqn ++; |
1488 |
case 0x08: /* DMA4_IRQSTATUS_L0 */ |
1489 |
return s->irqstat[irqn];
|
1490 |
|
1491 |
case 0x24: /* DMA4_IRQENABLE_L3 */ |
1492 |
irqn ++; |
1493 |
case 0x20: /* DMA4_IRQENABLE_L2 */ |
1494 |
irqn ++; |
1495 |
case 0x1c: /* DMA4_IRQENABLE_L1 */ |
1496 |
irqn ++; |
1497 |
case 0x18: /* DMA4_IRQENABLE_L0 */ |
1498 |
return s->irqen[irqn];
|
1499 |
|
1500 |
case 0x28: /* DMA4_SYSSTATUS */ |
1501 |
return 1; /* RESETDONE */ |
1502 |
|
1503 |
case 0x2c: /* DMA4_OCP_SYSCONFIG */ |
1504 |
return s->ocp;
|
1505 |
|
1506 |
case 0x64: /* DMA4_CAPS_0 */ |
1507 |
return s->caps[0]; |
1508 |
case 0x6c: /* DMA4_CAPS_2 */ |
1509 |
return s->caps[2]; |
1510 |
case 0x70: /* DMA4_CAPS_3 */ |
1511 |
return s->caps[3]; |
1512 |
case 0x74: /* DMA4_CAPS_4 */ |
1513 |
return s->caps[4]; |
1514 |
|
1515 |
case 0x78: /* DMA4_GCR */ |
1516 |
return s->gcr;
|
1517 |
|
1518 |
case 0x80 ... 0xfff: |
1519 |
offset -= 0x80;
|
1520 |
chnum = offset / 0x60;
|
1521 |
ch = s->ch + chnum; |
1522 |
offset -= chnum * 0x60;
|
1523 |
break;
|
1524 |
|
1525 |
default:
|
1526 |
OMAP_BAD_REG(addr); |
1527 |
return 0; |
1528 |
} |
1529 |
|
1530 |
/* Per-channel registers */
|
1531 |
switch (offset) {
|
1532 |
case 0x00: /* DMA4_CCR */ |
1533 |
return (ch->buf_disable << 25) | |
1534 |
(ch->src_sync << 24) |
|
1535 |
(ch->prefetch << 23) |
|
1536 |
((ch->sync & 0x60) << 14) | |
1537 |
(ch->bs << 18) |
|
1538 |
(ch->transparent_copy << 17) |
|
1539 |
(ch->constant_fill << 16) |
|
1540 |
(ch->mode[1] << 14) | |
1541 |
(ch->mode[0] << 12) | |
1542 |
(0 << 10) | (0 << 9) | |
1543 |
(ch->suspend << 8) |
|
1544 |
(ch->enable << 7) |
|
1545 |
(ch->priority << 6) |
|
1546 |
(ch->fs << 5) | (ch->sync & 0x1f); |
1547 |
|
1548 |
case 0x04: /* DMA4_CLNK_CTRL */ |
1549 |
return (ch->link_enabled << 15) | ch->link_next_ch; |
1550 |
|
1551 |
case 0x08: /* DMA4_CICR */ |
1552 |
return ch->interrupts;
|
1553 |
|
1554 |
case 0x0c: /* DMA4_CSR */ |
1555 |
return ch->cstatus;
|
1556 |
|
1557 |
case 0x10: /* DMA4_CSDP */ |
1558 |
return (ch->endian[0] << 21) | |
1559 |
(ch->endian_lock[0] << 20) | |
1560 |
(ch->endian[1] << 19) | |
1561 |
(ch->endian_lock[1] << 18) | |
1562 |
(ch->write_mode << 16) |
|
1563 |
(ch->burst[1] << 14) | |
1564 |
(ch->pack[1] << 13) | |
1565 |
(ch->translate[1] << 9) | |
1566 |
(ch->burst[0] << 7) | |
1567 |
(ch->pack[0] << 6) | |
1568 |
(ch->translate[0] << 2) | |
1569 |
(ch->data_type >> 1);
|
1570 |
|
1571 |
case 0x14: /* DMA4_CEN */ |
1572 |
return ch->elements;
|
1573 |
|
1574 |
case 0x18: /* DMA4_CFN */ |
1575 |
return ch->frames;
|
1576 |
|
1577 |
case 0x1c: /* DMA4_CSSA */ |
1578 |
return ch->addr[0]; |
1579 |
|
1580 |
case 0x20: /* DMA4_CDSA */ |
1581 |
return ch->addr[1]; |
1582 |
|
1583 |
case 0x24: /* DMA4_CSEI */ |
1584 |
return ch->element_index[0]; |
1585 |
|
1586 |
case 0x28: /* DMA4_CSFI */ |
1587 |
return ch->frame_index[0]; |
1588 |
|
1589 |
case 0x2c: /* DMA4_CDEI */ |
1590 |
return ch->element_index[1]; |
1591 |
|
1592 |
case 0x30: /* DMA4_CDFI */ |
1593 |
return ch->frame_index[1]; |
1594 |
|
1595 |
case 0x34: /* DMA4_CSAC */ |
1596 |
return ch->active_set.src & 0xffff; |
1597 |
|
1598 |
case 0x38: /* DMA4_CDAC */ |
1599 |
return ch->active_set.dest & 0xffff; |
1600 |
|
1601 |
case 0x3c: /* DMA4_CCEN */ |
1602 |
return ch->active_set.element;
|
1603 |
|
1604 |
case 0x40: /* DMA4_CCFN */ |
1605 |
return ch->active_set.frame;
|
1606 |
|
1607 |
case 0x44: /* DMA4_COLOR */ |
1608 |
/* XXX only in sDMA */
|
1609 |
return ch->color;
|
1610 |
|
1611 |
default:
|
1612 |
OMAP_BAD_REG(addr); |
1613 |
return 0; |
1614 |
} |
1615 |
} |
1616 |
|
1617 |
static void omap_dma4_write(void *opaque, target_phys_addr_t addr, |
1618 |
uint32_t value) |
1619 |
{ |
1620 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1621 |
int chnum, irqn = 0, offset = addr - s->base; |
1622 |
struct omap_dma_channel_s *ch;
|
1623 |
|
1624 |
switch (offset) {
|
1625 |
case 0x14: /* DMA4_IRQSTATUS_L3 */ |
1626 |
irqn ++; |
1627 |
case 0x10: /* DMA4_IRQSTATUS_L2 */ |
1628 |
irqn ++; |
1629 |
case 0x0c: /* DMA4_IRQSTATUS_L1 */ |
1630 |
irqn ++; |
1631 |
case 0x08: /* DMA4_IRQSTATUS_L0 */ |
1632 |
s->irqstat[irqn] &= ~value; |
1633 |
if (!s->irqstat[irqn])
|
1634 |
qemu_irq_lower(s->irq[irqn]); |
1635 |
return;
|
1636 |
|
1637 |
case 0x24: /* DMA4_IRQENABLE_L3 */ |
1638 |
irqn ++; |
1639 |
case 0x20: /* DMA4_IRQENABLE_L2 */ |
1640 |
irqn ++; |
1641 |
case 0x1c: /* DMA4_IRQENABLE_L1 */ |
1642 |
irqn ++; |
1643 |
case 0x18: /* DMA4_IRQENABLE_L0 */ |
1644 |
s->irqen[irqn] = value; |
1645 |
return;
|
1646 |
|
1647 |
case 0x2c: /* DMA4_OCP_SYSCONFIG */ |
1648 |
if (value & 2) /* SOFTRESET */ |
1649 |
omap_dma_reset(s); |
1650 |
s->ocp = value & 0x3321;
|
1651 |
if (((s->ocp >> 12) & 3) == 3) /* MIDLEMODE */ |
1652 |
fprintf(stderr, "%s: invalid DMA power mode\n", __FUNCTION__);
|
1653 |
return;
|
1654 |
|
1655 |
case 0x78: /* DMA4_GCR */ |
1656 |
s->gcr = value & 0x00ff00ff;
|
1657 |
if ((value & 0xff) == 0x00) /* MAX_CHANNEL_FIFO_DEPTH */ |
1658 |
fprintf(stderr, "%s: wrong FIFO depth in GCR\n", __FUNCTION__);
|
1659 |
return;
|
1660 |
|
1661 |
case 0x80 ... 0xfff: |
1662 |
offset -= 0x80;
|
1663 |
chnum = offset / 0x60;
|
1664 |
ch = s->ch + chnum; |
1665 |
offset -= chnum * 0x60;
|
1666 |
break;
|
1667 |
|
1668 |
case 0x00: /* DMA4_REVISION */ |
1669 |
case 0x28: /* DMA4_SYSSTATUS */ |
1670 |
case 0x64: /* DMA4_CAPS_0 */ |
1671 |
case 0x6c: /* DMA4_CAPS_2 */ |
1672 |
case 0x70: /* DMA4_CAPS_3 */ |
1673 |
case 0x74: /* DMA4_CAPS_4 */ |
1674 |
OMAP_RO_REG(addr); |
1675 |
return;
|
1676 |
|
1677 |
default:
|
1678 |
OMAP_BAD_REG(addr); |
1679 |
return;
|
1680 |
} |
1681 |
|
1682 |
/* Per-channel registers */
|
1683 |
switch (offset) {
|
1684 |
case 0x00: /* DMA4_CCR */ |
1685 |
ch->buf_disable = (value >> 25) & 1; |
1686 |
ch->src_sync = (value >> 24) & 1; /* XXX For CamDMA must be 1 */ |
1687 |
if (ch->buf_disable && !ch->src_sync)
|
1688 |
fprintf(stderr, "%s: Buffering disable is not allowed in "
|
1689 |
"destination synchronised mode\n", __FUNCTION__);
|
1690 |
ch->prefetch = (value >> 23) & 1; |
1691 |
ch->bs = (value >> 18) & 1; |
1692 |
ch->transparent_copy = (value >> 17) & 1; |
1693 |
ch->constant_fill = (value >> 16) & 1; |
1694 |
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14); |
1695 |
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12); |
1696 |
ch->suspend = (value & 0x0100) >> 8; |
1697 |
ch->priority = (value & 0x0040) >> 6; |
1698 |
ch->fs = (value & 0x0020) >> 5; |
1699 |
if (ch->fs && ch->bs && ch->mode[0] && ch->mode[1]) |
1700 |
fprintf(stderr, "%s: For a packet transfer at least one port "
|
1701 |
"must be constant-addressed\n", __FUNCTION__);
|
1702 |
ch->sync = (value & 0x001f) | ((value >> 14) & 0x0060); |
1703 |
/* XXX must be 0x01 for CamDMA */
|
1704 |
|
1705 |
if (value & 0x0080) |
1706 |
omap_dma_enable_channel(s, ch); |
1707 |
else
|
1708 |
omap_dma_disable_channel(s, ch); |
1709 |
|
1710 |
break;
|
1711 |
|
1712 |
case 0x04: /* DMA4_CLNK_CTRL */ |
1713 |
ch->link_enabled = (value >> 15) & 0x1; |
1714 |
ch->link_next_ch = value & 0x1f;
|
1715 |
break;
|
1716 |
|
1717 |
case 0x08: /* DMA4_CICR */ |
1718 |
ch->interrupts = value & 0x09be;
|
1719 |
break;
|
1720 |
|
1721 |
case 0x0c: /* DMA4_CSR */ |
1722 |
ch->cstatus &= ~value; |
1723 |
break;
|
1724 |
|
1725 |
case 0x10: /* DMA4_CSDP */ |
1726 |
ch->endian[0] =(value >> 21) & 1; |
1727 |
ch->endian_lock[0] =(value >> 20) & 1; |
1728 |
ch->endian[1] =(value >> 19) & 1; |
1729 |
ch->endian_lock[1] =(value >> 18) & 1; |
1730 |
if (ch->endian[0] != ch->endian[1]) |
1731 |
fprintf(stderr, "%s: DMA endianned conversion enable attempt\n",
|
1732 |
__FUNCTION__); |
1733 |
ch->write_mode = (value >> 16) & 3; |
1734 |
ch->burst[1] = (value & 0xc000) >> 14; |
1735 |
ch->pack[1] = (value & 0x2000) >> 13; |
1736 |
ch->translate[1] = (value & 0x1e00) >> 9; |
1737 |
ch->burst[0] = (value & 0x0180) >> 7; |
1738 |
ch->pack[0] = (value & 0x0040) >> 6; |
1739 |
ch->translate[0] = (value & 0x003c) >> 2; |
1740 |
if (ch->translate[0] | ch->translate[1]) |
1741 |
fprintf(stderr, "%s: bad MReqAddressTranslate sideband signal\n",
|
1742 |
__FUNCTION__); |
1743 |
ch->data_type = 1 << (value & 3); |
1744 |
if ((value & 3) == 3) |
1745 |
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
|
1746 |
break;
|
1747 |
|
1748 |
case 0x14: /* DMA4_CEN */ |
1749 |
ch->elements = value & 0xffffff;
|
1750 |
break;
|
1751 |
|
1752 |
case 0x18: /* DMA4_CFN */ |
1753 |
ch->frames = value & 0xffff;
|
1754 |
break;
|
1755 |
|
1756 |
case 0x1c: /* DMA4_CSSA */ |
1757 |
ch->addr[0] = (target_phys_addr_t) (uint32_t) value;
|
1758 |
break;
|
1759 |
|
1760 |
case 0x20: /* DMA4_CDSA */ |
1761 |
ch->addr[1] = (target_phys_addr_t) (uint32_t) value;
|
1762 |
break;
|
1763 |
|
1764 |
case 0x24: /* DMA4_CSEI */ |
1765 |
ch->element_index[0] = (int16_t) value;
|
1766 |
break;
|
1767 |
|
1768 |
case 0x28: /* DMA4_CSFI */ |
1769 |
ch->frame_index[0] = (int32_t) value;
|
1770 |
break;
|
1771 |
|
1772 |
case 0x2c: /* DMA4_CDEI */ |
1773 |
ch->element_index[1] = (int16_t) value;
|
1774 |
break;
|
1775 |
|
1776 |
case 0x30: /* DMA4_CDFI */ |
1777 |
ch->frame_index[1] = (int32_t) value;
|
1778 |
break;
|
1779 |
|
1780 |
case 0x44: /* DMA4_COLOR */ |
1781 |
/* XXX only in sDMA */
|
1782 |
ch->color = value; |
1783 |
break;
|
1784 |
|
1785 |
case 0x34: /* DMA4_CSAC */ |
1786 |
case 0x38: /* DMA4_CDAC */ |
1787 |
case 0x3c: /* DMA4_CCEN */ |
1788 |
case 0x40: /* DMA4_CCFN */ |
1789 |
OMAP_RO_REG(addr); |
1790 |
break;
|
1791 |
|
1792 |
default:
|
1793 |
OMAP_BAD_REG(addr); |
1794 |
} |
1795 |
} |
1796 |
|
1797 |
static CPUReadMemoryFunc *omap_dma4_readfn[] = {
|
1798 |
omap_badwidth_read16, |
1799 |
omap_dma4_read, |
1800 |
omap_dma4_read, |
1801 |
}; |
1802 |
|
1803 |
static CPUWriteMemoryFunc *omap_dma4_writefn[] = {
|
1804 |
omap_badwidth_write16, |
1805 |
omap_dma4_write, |
1806 |
omap_dma4_write, |
1807 |
}; |
1808 |
|
1809 |
struct omap_dma_s *omap_dma4_init(target_phys_addr_t base, qemu_irq *irqs,
|
1810 |
struct omap_mpu_state_s *mpu, int fifo, |
1811 |
int chans, omap_clk iclk, omap_clk fclk)
|
1812 |
{ |
1813 |
int iomemtype;
|
1814 |
struct omap_dma_s *s = (struct omap_dma_s *) |
1815 |
qemu_mallocz(sizeof(struct omap_dma_s)); |
1816 |
|
1817 |
s->base = base; |
1818 |
s->model = omap_dma_4; |
1819 |
s->chans = chans; |
1820 |
s->mpu = mpu; |
1821 |
s->clk = fclk; |
1822 |
memcpy(&s->irq, irqs, sizeof(s->irq));
|
1823 |
s->intr_update = omap_dma_interrupts_4_update; |
1824 |
omap_dma_setcaps(s); |
1825 |
s->tm = qemu_new_timer(vm_clock, (QEMUTimerCB *) omap_dma_channel_run, s); |
1826 |
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]); |
1827 |
mpu->drq = qemu_allocate_irqs(omap_dma_request, s, 64);
|
1828 |
omap_dma_reset(s); |
1829 |
omap_dma_clk_update(s, 0, 1); |
1830 |
|
1831 |
iomemtype = cpu_register_io_memory(0, omap_dma4_readfn,
|
1832 |
omap_dma4_writefn, s); |
1833 |
cpu_register_physical_memory(s->base, 0x1000, iomemtype);
|
1834 |
|
1835 |
return s;
|
1836 |
} |
1837 |
|
1838 |
struct omap_dma_lcd_channel_s *omap_dma_get_lcdch(struct omap_dma_s *s) |
1839 |
{ |
1840 |
return &s->lcd_ch;
|
1841 |
} |