2
* TI OMAP DMA gigacell.
4
* Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org>
5
* Copyright (C) 2007-2008 Lauro Ramos Venancio <lauro.venancio@indt.org.br>
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* This program is free software; you can redistribute it and/or
8
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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* 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
20
#include "qemu-common.h"
21
#include "qemu/timer.h"
22
#include "hw/arm/omap.h"
24
#include "hw/arm/soc_dma.h"
26
struct omap_dma_channel_s {
33
enum omap_dma_port port[2];
35
omap_dma_addressing_t mode[2];
38
int32_t frame_index[2];
39
int16_t element_index[2];
48
/* auto init and linked channel data */
55
/* interruption data */
75
int omap_3_1_compatible_disable;
78
struct omap_dma_channel_s *sibling;
80
struct omap_dma_reg_set_s {
92
struct soc_dma_ch_s *dma;
94
/* unused parameters */
97
int interleave_disabled;
104
struct soc_dma_s *dma;
107
struct omap_mpu_state_s *mpu;
110
void (*intr_update)(struct omap_dma_s *s);
111
enum omap_dma_model model;
112
int omap_3_1_mapping_disabled;
121
struct omap_dma_channel_s ch[32];
122
struct omap_dma_lcd_channel_s lcd_ch;
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)
137
static inline void omap_dma_interrupts_update(struct omap_dma_s *s)
139
return s->intr_update(s);
142
static void omap_dma_channel_load(struct omap_dma_channel_s *ch)
144
struct omap_dma_reg_set_s *a = &ch->active_set;
146
int omap_3_1 = !ch->omap_3_1_compatible_disable;
149
* TODO: verify address ranges and alignment
150
* TODO: port endianness
153
a->src = ch->addr[0];
154
a->dest = ch->addr[1];
155
a->frames = ch->frames;
156
a->elements = ch->elements;
157
a->pck_elements = ch->frame_index[!ch->src_sync];
162
if (unlikely(!ch->elements || !ch->frames)) {
163
printf("%s: bad DMA request\n", __FUNCTION__);
167
for (i = 0; i < 2; i ++)
168
switch (ch->mode[i]) {
170
a->elem_delta[i] = 0;
171
a->frame_delta[i] = 0;
173
case post_incremented:
174
a->elem_delta[i] = ch->data_type;
175
a->frame_delta[i] = 0;
178
a->elem_delta[i] = ch->data_type +
179
ch->element_index[omap_3_1 ? 0 : i] - 1;
180
a->frame_delta[i] = 0;
183
a->elem_delta[i] = ch->data_type +
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ch->element_index[omap_3_1 ? 0 : i] - 1;
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a->frame_delta[i] = ch->frame_index[omap_3_1 ? 0 : i] -
186
ch->element_index[omap_3_1 ? 0 : i];
192
normal = !ch->transparent_copy && !ch->constant_fill &&
193
/* FIFO is big-endian so either (ch->endian[n] == 1) OR
194
* (ch->endian_lock[n] == 1) mean no endianism conversion. */
195
(ch->endian[0] | ch->endian_lock[0]) ==
196
(ch->endian[1] | ch->endian_lock[1]);
197
for (i = 0; i < 2; i ++) {
198
/* TODO: for a->frame_delta[i] > 0 still use the fast path, just
199
* limit min_elems in omap_dma_transfer_setup to the nearest frame
201
if (!a->elem_delta[i] && normal &&
202
(a->frames == 1 || !a->frame_delta[i]))
203
ch->dma->type[i] = soc_dma_access_const;
204
else if (a->elem_delta[i] == ch->data_type && normal &&
205
(a->frames == 1 || !a->frame_delta[i]))
206
ch->dma->type[i] = soc_dma_access_linear;
208
ch->dma->type[i] = soc_dma_access_other;
210
ch->dma->vaddr[i] = ch->addr[i];
212
soc_dma_ch_update(ch->dma);
215
static void omap_dma_activate_channel(struct omap_dma_s *s,
216
struct omap_dma_channel_s *ch)
219
if (ch->set_update) {
220
/* It's not clear when the active set is supposed to be
221
* loaded from registers. We're already loading it when the
222
* channel is enabled, and for some guests this is not enough
223
* but that may be also because of a race condition (no
224
* delays in qemu) in the guest code, which we're just
225
* working around here. */
226
omap_dma_channel_load(ch);
231
soc_dma_set_request(ch->dma, 1);
237
static void omap_dma_deactivate_channel(struct omap_dma_s *s,
238
struct omap_dma_channel_s *ch)
241
ch->cpc = ch->active_set.dest & 0xffff;
243
if (ch->pending_request && !ch->waiting_end_prog && ch->enable) {
244
/* Don't deactivate the channel */
245
ch->pending_request = 0;
249
/* Don't deactive the channel if it is synchronized and the DMA request is
251
if (ch->sync && ch->enable && (s->dma->drqbmp & (1ULL << ch->sync)))
257
soc_dma_set_request(ch->dma, 0);
261
static void omap_dma_enable_channel(struct omap_dma_s *s,
262
struct omap_dma_channel_s *ch)
266
ch->waiting_end_prog = 0;
267
omap_dma_channel_load(ch);
268
/* TODO: theoretically if ch->sync && ch->prefetch &&
269
* !s->dma->drqbmp[ch->sync], we should also activate and fetch
270
* from source and then stall until signalled. */
271
if ((!ch->sync) || (s->dma->drqbmp & (1ULL << ch->sync))) {
272
omap_dma_activate_channel(s, ch);
277
static void omap_dma_disable_channel(struct omap_dma_s *s,
278
struct omap_dma_channel_s *ch)
282
/* Discard any pending request */
283
ch->pending_request = 0;
284
omap_dma_deactivate_channel(s, ch);
288
static void omap_dma_channel_end_prog(struct omap_dma_s *s,
289
struct omap_dma_channel_s *ch)
291
if (ch->waiting_end_prog) {
292
ch->waiting_end_prog = 0;
293
if (!ch->sync || ch->pending_request) {
294
ch->pending_request = 0;
295
omap_dma_activate_channel(s, ch);
300
static void omap_dma_interrupts_3_1_update(struct omap_dma_s *s)
302
struct omap_dma_channel_s *ch = s->ch;
304
/* First three interrupts are shared between two channels each. */
305
if (ch[0].status | ch[6].status)
306
qemu_irq_raise(ch[0].irq);
307
if (ch[1].status | ch[7].status)
308
qemu_irq_raise(ch[1].irq);
309
if (ch[2].status | ch[8].status)
310
qemu_irq_raise(ch[2].irq);
312
qemu_irq_raise(ch[3].irq);
314
qemu_irq_raise(ch[4].irq);
316
qemu_irq_raise(ch[5].irq);
319
static void omap_dma_interrupts_3_2_update(struct omap_dma_s *s)
321
struct omap_dma_channel_s *ch = s->ch;
324
for (i = s->chans; i; ch ++, i --)
326
qemu_irq_raise(ch->irq);
329
static void omap_dma_enable_3_1_mapping(struct omap_dma_s *s)
331
s->omap_3_1_mapping_disabled = 0;
333
s->intr_update = omap_dma_interrupts_3_1_update;
336
static void omap_dma_disable_3_1_mapping(struct omap_dma_s *s)
338
s->omap_3_1_mapping_disabled = 1;
340
s->intr_update = omap_dma_interrupts_3_2_update;
343
static void omap_dma_process_request(struct omap_dma_s *s, int request)
347
struct omap_dma_channel_s *ch = s->ch;
349
for (channel = 0; channel < s->chans; channel ++, ch ++) {
350
if (ch->enable && ch->sync == request) {
352
omap_dma_activate_channel(s, ch);
353
else if (!ch->pending_request)
354
ch->pending_request = 1;
356
/* Request collision */
357
/* Second request received while processing other request */
358
ch->status |= EVENT_DROP_INTR;
365
omap_dma_interrupts_update(s);
368
static void omap_dma_transfer_generic(struct soc_dma_ch_s *dma)
371
struct omap_dma_channel_s *ch = dma->opaque;
372
struct omap_dma_reg_set_s *a = &ch->active_set;
373
int bytes = dma->bytes;
375
uint16_t status = ch->status;
379
/* Transfer a single element */
380
/* FIXME: check the endianness */
381
if (!ch->constant_fill)
382
cpu_physical_memory_read(a->src, value, ch->data_type);
384
*(uint32_t *) value = ch->color;
386
if (!ch->transparent_copy || *(uint32_t *) value != ch->color)
387
cpu_physical_memory_write(a->dest, value, ch->data_type);
389
a->src += a->elem_delta[0];
390
a->dest += a->elem_delta[1];
394
if (a->element == a->elements) {
397
a->src += a->frame_delta[0];
398
a->dest += a->frame_delta[1];
401
/* If the channel is async, update cpc */
403
ch->cpc = a->dest & 0xffff;
405
} while ((bytes -= ch->data_type));
407
/* If the channel is element synchronized, deactivate it */
408
if (ch->sync && !ch->fs && !ch->bs)
409
omap_dma_deactivate_channel(s, ch);
411
/* If it is the last frame, set the LAST_FRAME interrupt */
412
if (a->element == 1 && a->frame == a->frames - 1)
413
if (ch->interrupts & LAST_FRAME_INTR)
414
ch->status |= LAST_FRAME_INTR;
416
/* If the half of the frame was reached, set the HALF_FRAME
418
if (a->element == (a->elements >> 1))
419
if (ch->interrupts & HALF_FRAME_INTR)
420
ch->status |= HALF_FRAME_INTR;
422
if (ch->fs && ch->bs) {
424
/* Check if a full packet has beed transferred. */
425
if (a->pck_element == a->pck_elements) {
428
/* Set the END_PKT interrupt */
429
if ((ch->interrupts & END_PKT_INTR) && !ch->src_sync)
430
ch->status |= END_PKT_INTR;
432
/* If the channel is packet-synchronized, deactivate it */
434
omap_dma_deactivate_channel(s, ch);
438
if (a->element == a->elements) {
441
a->src += a->frame_delta[0];
442
a->dest += a->frame_delta[1];
445
/* If the channel is frame synchronized, deactivate it */
446
if (ch->sync && ch->fs && !ch->bs)
447
omap_dma_deactivate_channel(s, ch);
449
/* If the channel is async, update cpc */
451
ch->cpc = a->dest & 0xffff;
453
/* Set the END_FRAME interrupt */
454
if (ch->interrupts & END_FRAME_INTR)
455
ch->status |= END_FRAME_INTR;
457
if (a->frame == a->frames) {
459
/* Disable the channel */
461
if (ch->omap_3_1_compatible_disable) {
462
omap_dma_disable_channel(s, ch);
463
if (ch->link_enabled)
464
omap_dma_enable_channel(s,
465
&s->ch[ch->link_next_ch]);
468
omap_dma_disable_channel(s, ch);
469
else if (ch->repeat || ch->end_prog)
470
omap_dma_channel_load(ch);
472
ch->waiting_end_prog = 1;
473
omap_dma_deactivate_channel(s, ch);
477
if (ch->interrupts & END_BLOCK_INTR)
478
ch->status |= END_BLOCK_INTR;
481
} while (status == ch->status && ch->active);
483
omap_dma_interrupts_update(s);
488
omap_dma_intr_element_sync,
489
omap_dma_intr_last_frame,
490
omap_dma_intr_half_frame,
492
omap_dma_intr_frame_sync,
493
omap_dma_intr_packet,
494
omap_dma_intr_packet_sync,
496
__omap_dma_intr_last,
499
static void omap_dma_transfer_setup(struct soc_dma_ch_s *dma)
501
struct omap_dma_port_if_s *src_p, *dest_p;
502
struct omap_dma_reg_set_s *a;
503
struct omap_dma_channel_s *ch = dma->opaque;
504
struct omap_dma_s *s = dma->dma->opaque;
505
int frames, min_elems, elements[__omap_dma_intr_last];
509
src_p = &s->mpu->port[ch->port[0]];
510
dest_p = &s->mpu->port[ch->port[1]];
511
if ((!ch->constant_fill && !src_p->addr_valid(s->mpu, a->src)) ||
512
(!dest_p->addr_valid(s->mpu, a->dest))) {
515
if (ch->interrupts & TIMEOUT_INTR)
516
ch->status |= TIMEOUT_INTR;
517
omap_dma_deactivate_channel(s, ch);
520
printf("%s: Bus time-out in DMA%i operation\n",
521
__FUNCTION__, dma->num);
526
/* Check all the conditions that terminate the transfer starting
527
* with those that can occur the soonest. */
528
#define INTR_CHECK(cond, id, nelements) \
530
elements[id] = nelements; \
531
if (elements[id] < min_elems) \
532
min_elems = elements[id]; \
534
elements[id] = INT_MAX;
538
ch->sync && !ch->fs && !ch->bs,
539
omap_dma_intr_element_sync,
543
/* TODO: for transfers where entire frames can be read and written
544
* using memcpy() but a->frame_delta is non-zero, try to still do
545
* transfers using soc_dma but limit min_elems to a->elements - ...
546
* See also the TODO in omap_dma_channel_load. */
548
(ch->interrupts & LAST_FRAME_INTR) &&
549
((a->frame < a->frames - 1) || !a->element),
550
omap_dma_intr_last_frame,
551
(a->frames - a->frame - 2) * a->elements +
552
(a->elements - a->element + 1))
554
ch->interrupts & HALF_FRAME_INTR,
555
omap_dma_intr_half_frame,
557
(a->element >= (a->elements >> 1) ? a->elements : 0) -
560
ch->sync && ch->fs && (ch->interrupts & END_FRAME_INTR),
562
a->elements - a->element)
564
ch->sync && ch->fs && !ch->bs,
565
omap_dma_intr_frame_sync,
566
a->elements - a->element)
571
(ch->interrupts & END_PKT_INTR) && !ch->src_sync,
572
omap_dma_intr_packet,
573
a->pck_elements - a->pck_element)
575
ch->fs && ch->bs && ch->sync,
576
omap_dma_intr_packet_sync,
577
a->pck_elements - a->pck_element)
583
(a->frames - a->frame - 1) * a->elements +
584
(a->elements - a->element))
586
dma->bytes = min_elems * ch->data_type;
588
/* Set appropriate interrupts and/or deactivate channels */
591
/* TODO: should all of this only be done if dma->update, and otherwise
592
* inside omap_dma_transfer_generic below - check what's faster. */
596
/* If the channel is element synchronized, deactivate it */
597
if (min_elems == elements[omap_dma_intr_element_sync])
598
omap_dma_deactivate_channel(s, ch);
600
/* If it is the last frame, set the LAST_FRAME interrupt */
601
if (min_elems == elements[omap_dma_intr_last_frame])
602
ch->status |= LAST_FRAME_INTR;
604
/* If exactly half of the frame was reached, set the HALF_FRAME
606
if (min_elems == elements[omap_dma_intr_half_frame])
607
ch->status |= HALF_FRAME_INTR;
609
/* If a full packet has been transferred, set the END_PKT interrupt */
610
if (min_elems == elements[omap_dma_intr_packet])
611
ch->status |= END_PKT_INTR;
613
/* If the channel is packet-synchronized, deactivate it */
614
if (min_elems == elements[omap_dma_intr_packet_sync])
615
omap_dma_deactivate_channel(s, ch);
617
/* If the channel is frame synchronized, deactivate it */
618
if (min_elems == elements[omap_dma_intr_frame_sync])
619
omap_dma_deactivate_channel(s, ch);
621
/* Set the END_FRAME interrupt */
622
if (min_elems == elements[omap_dma_intr_frame])
623
ch->status |= END_FRAME_INTR;
625
if (min_elems == elements[omap_dma_intr_block]) {
627
/* Disable the channel */
629
if (ch->omap_3_1_compatible_disable) {
630
omap_dma_disable_channel(s, ch);
631
if (ch->link_enabled)
632
omap_dma_enable_channel(s, &s->ch[ch->link_next_ch]);
635
omap_dma_disable_channel(s, ch);
636
else if (ch->repeat || ch->end_prog)
637
omap_dma_channel_load(ch);
639
ch->waiting_end_prog = 1;
640
omap_dma_deactivate_channel(s, ch);
644
if (ch->interrupts & END_BLOCK_INTR)
645
ch->status |= END_BLOCK_INTR;
648
/* Update packet number */
649
if (ch->fs && ch->bs) {
650
a->pck_element += min_elems;
651
a->pck_element %= a->pck_elements;
654
/* TODO: check if we really need to update anything here or perhaps we
655
* can skip part of this. */
659
a->element += min_elems;
661
frames = a->element / a->elements;
662
a->element = a->element % a->elements;
664
a->src += min_elems * a->elem_delta[0] + frames * a->frame_delta[0];
665
a->dest += min_elems * a->elem_delta[1] + frames * a->frame_delta[1];
667
/* If the channel is async, update cpc */
668
if (!ch->sync && frames)
669
ch->cpc = a->dest & 0xffff;
671
/* TODO: if the destination port is IMIF or EMIFF, set the dirty
679
omap_dma_interrupts_update(s);
682
void omap_dma_reset(struct soc_dma_s *dma)
685
struct omap_dma_s *s = dma->opaque;
687
soc_dma_reset(s->dma);
688
if (s->model < omap_dma_4)
693
memset(&s->irqstat, 0, sizeof(s->irqstat));
694
memset(&s->irqen, 0, sizeof(s->irqen));
695
s->lcd_ch.src = emiff;
696
s->lcd_ch.condition = 0;
697
s->lcd_ch.interrupts = 0;
699
if (s->model < omap_dma_4)
700
omap_dma_enable_3_1_mapping(s);
701
for (i = 0; i < s->chans; i ++) {
702
s->ch[i].suspend = 0;
703
s->ch[i].prefetch = 0;
704
s->ch[i].buf_disable = 0;
705
s->ch[i].src_sync = 0;
706
memset(&s->ch[i].burst, 0, sizeof(s->ch[i].burst));
707
memset(&s->ch[i].port, 0, sizeof(s->ch[i].port));
708
memset(&s->ch[i].mode, 0, sizeof(s->ch[i].mode));
709
memset(&s->ch[i].frame_index, 0, sizeof(s->ch[i].frame_index));
710
memset(&s->ch[i].element_index, 0, sizeof(s->ch[i].element_index));
711
memset(&s->ch[i].endian, 0, sizeof(s->ch[i].endian));
712
memset(&s->ch[i].endian_lock, 0, sizeof(s->ch[i].endian_lock));
713
memset(&s->ch[i].translate, 0, sizeof(s->ch[i].translate));
714
s->ch[i].write_mode = 0;
715
s->ch[i].data_type = 0;
716
s->ch[i].transparent_copy = 0;
717
s->ch[i].constant_fill = 0;
718
s->ch[i].color = 0x00000000;
719
s->ch[i].end_prog = 0;
721
s->ch[i].auto_init = 0;
722
s->ch[i].link_enabled = 0;
723
if (s->model < omap_dma_4)
724
s->ch[i].interrupts = 0x0003;
726
s->ch[i].interrupts = 0x0000;
728
s->ch[i].cstatus = 0;
732
s->ch[i].pending_request = 0;
733
s->ch[i].waiting_end_prog = 0;
734
s->ch[i].cpc = 0x0000;
737
s->ch[i].omap_3_1_compatible_disable = 0;
738
memset(&s->ch[i].active_set, 0, sizeof(s->ch[i].active_set));
739
s->ch[i].priority = 0;
740
s->ch[i].interleave_disabled = 0;
745
static int omap_dma_ch_reg_read(struct omap_dma_s *s,
746
struct omap_dma_channel_s *ch, int reg, uint16_t *value)
749
case 0x00: /* SYS_DMA_CSDP_CH0 */
750
*value = (ch->burst[1] << 14) |
751
(ch->pack[1] << 13) |
753
(ch->burst[0] << 7) |
756
(ch->data_type >> 1);
759
case 0x02: /* SYS_DMA_CCR_CH0 */
760
if (s->model <= omap_dma_3_1)
761
*value = 0 << 10; /* FIFO_FLUSH reads as 0 */
763
*value = ch->omap_3_1_compatible_disable << 10;
764
*value |= (ch->mode[1] << 14) |
765
(ch->mode[0] << 12) |
766
(ch->end_prog << 11) |
768
(ch->auto_init << 8) |
770
(ch->priority << 6) |
771
(ch->fs << 5) | ch->sync;
774
case 0x04: /* SYS_DMA_CICR_CH0 */
775
*value = ch->interrupts;
778
case 0x06: /* SYS_DMA_CSR_CH0 */
781
if (!ch->omap_3_1_compatible_disable && ch->sibling) {
782
*value |= (ch->sibling->status & 0x3f) << 6;
783
ch->sibling->status &= SYNC;
785
qemu_irq_lower(ch->irq);
788
case 0x08: /* SYS_DMA_CSSA_L_CH0 */
789
*value = ch->addr[0] & 0x0000ffff;
792
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */
793
*value = ch->addr[0] >> 16;
796
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */
797
*value = ch->addr[1] & 0x0000ffff;
800
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */
801
*value = ch->addr[1] >> 16;
804
case 0x10: /* SYS_DMA_CEN_CH0 */
805
*value = ch->elements;
808
case 0x12: /* SYS_DMA_CFN_CH0 */
812
case 0x14: /* SYS_DMA_CFI_CH0 */
813
*value = ch->frame_index[0];
816
case 0x16: /* SYS_DMA_CEI_CH0 */
817
*value = ch->element_index[0];
820
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */
821
if (ch->omap_3_1_compatible_disable)
822
*value = ch->active_set.src & 0xffff; /* CSAC */
827
case 0x1a: /* DMA_CDAC */
828
*value = ch->active_set.dest & 0xffff; /* CDAC */
831
case 0x1c: /* DMA_CDEI */
832
*value = ch->element_index[1];
835
case 0x1e: /* DMA_CDFI */
836
*value = ch->frame_index[1];
839
case 0x20: /* DMA_COLOR_L */
840
*value = ch->color & 0xffff;
843
case 0x22: /* DMA_COLOR_U */
844
*value = ch->color >> 16;
847
case 0x24: /* DMA_CCR2 */
848
*value = (ch->bs << 2) |
849
(ch->transparent_copy << 1) |
853
case 0x28: /* DMA_CLNK_CTRL */
854
*value = (ch->link_enabled << 15) |
855
(ch->link_next_ch & 0xf);
858
case 0x2a: /* DMA_LCH_CTRL */
859
*value = (ch->interleave_disabled << 15) |
869
static int omap_dma_ch_reg_write(struct omap_dma_s *s,
870
struct omap_dma_channel_s *ch, int reg, uint16_t value)
873
case 0x00: /* SYS_DMA_CSDP_CH0 */
874
ch->burst[1] = (value & 0xc000) >> 14;
875
ch->pack[1] = (value & 0x2000) >> 13;
876
ch->port[1] = (enum omap_dma_port) ((value & 0x1e00) >> 9);
877
ch->burst[0] = (value & 0x0180) >> 7;
878
ch->pack[0] = (value & 0x0040) >> 6;
879
ch->port[0] = (enum omap_dma_port) ((value & 0x003c) >> 2);
880
ch->data_type = 1 << (value & 3);
881
if (ch->port[0] >= __omap_dma_port_last)
882
printf("%s: invalid DMA port %i\n", __FUNCTION__,
884
if (ch->port[1] >= __omap_dma_port_last)
885
printf("%s: invalid DMA port %i\n", __FUNCTION__,
887
if ((value & 3) == 3)
888
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
891
case 0x02: /* SYS_DMA_CCR_CH0 */
892
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14);
893
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12);
894
ch->end_prog = (value & 0x0800) >> 11;
895
if (s->model >= omap_dma_3_2)
896
ch->omap_3_1_compatible_disable = (value >> 10) & 0x1;
897
ch->repeat = (value & 0x0200) >> 9;
898
ch->auto_init = (value & 0x0100) >> 8;
899
ch->priority = (value & 0x0040) >> 6;
900
ch->fs = (value & 0x0020) >> 5;
901
ch->sync = value & 0x001f;
904
omap_dma_enable_channel(s, ch);
906
omap_dma_disable_channel(s, ch);
909
omap_dma_channel_end_prog(s, ch);
913
case 0x04: /* SYS_DMA_CICR_CH0 */
914
ch->interrupts = value & 0x3f;
917
case 0x06: /* SYS_DMA_CSR_CH0 */
918
OMAP_RO_REG((hwaddr) reg);
921
case 0x08: /* SYS_DMA_CSSA_L_CH0 */
922
ch->addr[0] &= 0xffff0000;
923
ch->addr[0] |= value;
926
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */
927
ch->addr[0] &= 0x0000ffff;
928
ch->addr[0] |= (uint32_t) value << 16;
931
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */
932
ch->addr[1] &= 0xffff0000;
933
ch->addr[1] |= value;
936
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */
937
ch->addr[1] &= 0x0000ffff;
938
ch->addr[1] |= (uint32_t) value << 16;
941
case 0x10: /* SYS_DMA_CEN_CH0 */
942
ch->elements = value;
945
case 0x12: /* SYS_DMA_CFN_CH0 */
949
case 0x14: /* SYS_DMA_CFI_CH0 */
950
ch->frame_index[0] = (int16_t) value;
953
case 0x16: /* SYS_DMA_CEI_CH0 */
954
ch->element_index[0] = (int16_t) value;
957
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */
958
OMAP_RO_REG((hwaddr) reg);
961
case 0x1c: /* DMA_CDEI */
962
ch->element_index[1] = (int16_t) value;
965
case 0x1e: /* DMA_CDFI */
966
ch->frame_index[1] = (int16_t) value;
969
case 0x20: /* DMA_COLOR_L */
970
ch->color &= 0xffff0000;
974
case 0x22: /* DMA_COLOR_U */
976
ch->color |= value << 16;
979
case 0x24: /* DMA_CCR2 */
980
ch->bs = (value >> 2) & 0x1;
981
ch->transparent_copy = (value >> 1) & 0x1;
982
ch->constant_fill = value & 0x1;
985
case 0x28: /* DMA_CLNK_CTRL */
986
ch->link_enabled = (value >> 15) & 0x1;
987
if (value & (1 << 14)) { /* Stop_Lnk */
988
ch->link_enabled = 0;
989
omap_dma_disable_channel(s, ch);
991
ch->link_next_ch = value & 0x1f;
994
case 0x2a: /* DMA_LCH_CTRL */
995
ch->interleave_disabled = (value >> 15) & 0x1;
996
ch->type = value & 0xf;
1005
static int omap_dma_3_2_lcd_write(struct omap_dma_lcd_channel_s *s, int offset,
1009
case 0xbc0: /* DMA_LCD_CSDP */
1010
s->brust_f2 = (value >> 14) & 0x3;
1011
s->pack_f2 = (value >> 13) & 0x1;
1012
s->data_type_f2 = (1 << ((value >> 11) & 0x3));
1013
s->brust_f1 = (value >> 7) & 0x3;
1014
s->pack_f1 = (value >> 6) & 0x1;
1015
s->data_type_f1 = (1 << ((value >> 0) & 0x3));
1018
case 0xbc2: /* DMA_LCD_CCR */
1019
s->mode_f2 = (value >> 14) & 0x3;
1020
s->mode_f1 = (value >> 12) & 0x3;
1021
s->end_prog = (value >> 11) & 0x1;
1022
s->omap_3_1_compatible_disable = (value >> 10) & 0x1;
1023
s->repeat = (value >> 9) & 0x1;
1024
s->auto_init = (value >> 8) & 0x1;
1025
s->running = (value >> 7) & 0x1;
1026
s->priority = (value >> 6) & 0x1;
1027
s->bs = (value >> 4) & 0x1;
1030
case 0xbc4: /* DMA_LCD_CTRL */
1031
s->dst = (value >> 8) & 0x1;
1032
s->src = ((value >> 6) & 0x3) << 1;
1034
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
1035
s->interrupts = (value >> 1) & 1;
1036
s->dual = value & 1;
1039
case 0xbc8: /* TOP_B1_L */
1040
s->src_f1_top &= 0xffff0000;
1041
s->src_f1_top |= 0x0000ffff & value;
1044
case 0xbca: /* TOP_B1_U */
1045
s->src_f1_top &= 0x0000ffff;
1046
s->src_f1_top |= value << 16;
1049
case 0xbcc: /* BOT_B1_L */
1050
s->src_f1_bottom &= 0xffff0000;
1051
s->src_f1_bottom |= 0x0000ffff & value;
1054
case 0xbce: /* BOT_B1_U */
1055
s->src_f1_bottom &= 0x0000ffff;
1056
s->src_f1_bottom |= (uint32_t) value << 16;
1059
case 0xbd0: /* TOP_B2_L */
1060
s->src_f2_top &= 0xffff0000;
1061
s->src_f2_top |= 0x0000ffff & value;
1064
case 0xbd2: /* TOP_B2_U */
1065
s->src_f2_top &= 0x0000ffff;
1066
s->src_f2_top |= (uint32_t) value << 16;
1069
case 0xbd4: /* BOT_B2_L */
1070
s->src_f2_bottom &= 0xffff0000;
1071
s->src_f2_bottom |= 0x0000ffff & value;
1074
case 0xbd6: /* BOT_B2_U */
1075
s->src_f2_bottom &= 0x0000ffff;
1076
s->src_f2_bottom |= (uint32_t) value << 16;
1079
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */
1080
s->element_index_f1 = value;
1083
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */
1084
s->frame_index_f1 &= 0xffff0000;
1085
s->frame_index_f1 |= 0x0000ffff & value;
1088
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */
1089
s->frame_index_f1 &= 0x0000ffff;
1090
s->frame_index_f1 |= (uint32_t) value << 16;
1093
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */
1094
s->element_index_f2 = value;
1097
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */
1098
s->frame_index_f2 &= 0xffff0000;
1099
s->frame_index_f2 |= 0x0000ffff & value;
1102
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */
1103
s->frame_index_f2 &= 0x0000ffff;
1104
s->frame_index_f2 |= (uint32_t) value << 16;
1107
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */
1108
s->elements_f1 = value;
1111
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */
1112
s->frames_f1 = value;
1115
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */
1116
s->elements_f2 = value;
1119
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */
1120
s->frames_f2 = value;
1123
case 0xbea: /* DMA_LCD_LCH_CTRL */
1124
s->lch_type = value & 0xf;
1133
static int omap_dma_3_2_lcd_read(struct omap_dma_lcd_channel_s *s, int offset,
1137
case 0xbc0: /* DMA_LCD_CSDP */
1138
*ret = (s->brust_f2 << 14) |
1139
(s->pack_f2 << 13) |
1140
((s->data_type_f2 >> 1) << 11) |
1141
(s->brust_f1 << 7) |
1143
((s->data_type_f1 >> 1) << 0);
1146
case 0xbc2: /* DMA_LCD_CCR */
1147
*ret = (s->mode_f2 << 14) |
1148
(s->mode_f1 << 12) |
1149
(s->end_prog << 11) |
1150
(s->omap_3_1_compatible_disable << 10) |
1152
(s->auto_init << 8) |
1154
(s->priority << 6) |
1158
case 0xbc4: /* DMA_LCD_CTRL */
1159
qemu_irq_lower(s->irq);
1160
*ret = (s->dst << 8) |
1161
((s->src & 0x6) << 5) |
1162
(s->condition << 3) |
1163
(s->interrupts << 1) |
1167
case 0xbc8: /* TOP_B1_L */
1168
*ret = s->src_f1_top & 0xffff;
1171
case 0xbca: /* TOP_B1_U */
1172
*ret = s->src_f1_top >> 16;
1175
case 0xbcc: /* BOT_B1_L */
1176
*ret = s->src_f1_bottom & 0xffff;
1179
case 0xbce: /* BOT_B1_U */
1180
*ret = s->src_f1_bottom >> 16;
1183
case 0xbd0: /* TOP_B2_L */
1184
*ret = s->src_f2_top & 0xffff;
1187
case 0xbd2: /* TOP_B2_U */
1188
*ret = s->src_f2_top >> 16;
1191
case 0xbd4: /* BOT_B2_L */
1192
*ret = s->src_f2_bottom & 0xffff;
1195
case 0xbd6: /* BOT_B2_U */
1196
*ret = s->src_f2_bottom >> 16;
1199
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */
1200
*ret = s->element_index_f1;
1203
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */
1204
*ret = s->frame_index_f1 & 0xffff;
1207
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */
1208
*ret = s->frame_index_f1 >> 16;
1211
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */
1212
*ret = s->element_index_f2;
1215
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */
1216
*ret = s->frame_index_f2 & 0xffff;
1219
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */
1220
*ret = s->frame_index_f2 >> 16;
1223
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */
1224
*ret = s->elements_f1;
1227
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */
1228
*ret = s->frames_f1;
1231
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */
1232
*ret = s->elements_f2;
1235
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */
1236
*ret = s->frames_f2;
1239
case 0xbea: /* DMA_LCD_LCH_CTRL */
1249
static int omap_dma_3_1_lcd_write(struct omap_dma_lcd_channel_s *s, int offset,
1253
case 0x300: /* SYS_DMA_LCD_CTRL */
1254
s->src = (value & 0x40) ? imif : emiff;
1256
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
1257
s->interrupts = (value >> 1) & 1;
1258
s->dual = value & 1;
1261
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */
1262
s->src_f1_top &= 0xffff0000;
1263
s->src_f1_top |= 0x0000ffff & value;
1266
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */
1267
s->src_f1_top &= 0x0000ffff;
1268
s->src_f1_top |= value << 16;
1271
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */
1272
s->src_f1_bottom &= 0xffff0000;
1273
s->src_f1_bottom |= 0x0000ffff & value;
1276
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */
1277
s->src_f1_bottom &= 0x0000ffff;
1278
s->src_f1_bottom |= value << 16;
1281
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */
1282
s->src_f2_top &= 0xffff0000;
1283
s->src_f2_top |= 0x0000ffff & value;
1286
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */
1287
s->src_f2_top &= 0x0000ffff;
1288
s->src_f2_top |= value << 16;
1291
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */
1292
s->src_f2_bottom &= 0xffff0000;
1293
s->src_f2_bottom |= 0x0000ffff & value;
1296
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */
1297
s->src_f2_bottom &= 0x0000ffff;
1298
s->src_f2_bottom |= value << 16;
1307
static int omap_dma_3_1_lcd_read(struct omap_dma_lcd_channel_s *s, int offset,
1313
case 0x300: /* SYS_DMA_LCD_CTRL */
1316
qemu_irq_lower(s->irq);
1317
*ret = ((s->src == imif) << 6) | (i << 3) |
1318
(s->interrupts << 1) | s->dual;
1321
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */
1322
*ret = s->src_f1_top & 0xffff;
1325
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */
1326
*ret = s->src_f1_top >> 16;
1329
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */
1330
*ret = s->src_f1_bottom & 0xffff;
1333
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */
1334
*ret = s->src_f1_bottom >> 16;
1337
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */
1338
*ret = s->src_f2_top & 0xffff;
1341
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */
1342
*ret = s->src_f2_top >> 16;
1345
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */
1346
*ret = s->src_f2_bottom & 0xffff;
1349
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */
1350
*ret = s->src_f2_bottom >> 16;
1359
static int omap_dma_sys_write(struct omap_dma_s *s, int offset, uint16_t value)
1362
case 0x400: /* SYS_DMA_GCR */
1366
case 0x404: /* DMA_GSCR */
1368
omap_dma_disable_3_1_mapping(s);
1370
omap_dma_enable_3_1_mapping(s);
1373
case 0x408: /* DMA_GRST */
1375
omap_dma_reset(s->dma);
1384
static int omap_dma_sys_read(struct omap_dma_s *s, int offset,
1388
case 0x400: /* SYS_DMA_GCR */
1392
case 0x404: /* DMA_GSCR */
1393
*ret = s->omap_3_1_mapping_disabled << 3;
1396
case 0x408: /* DMA_GRST */
1400
case 0x442: /* DMA_HW_ID */
1401
case 0x444: /* DMA_PCh2_ID */
1402
case 0x446: /* DMA_PCh0_ID */
1403
case 0x448: /* DMA_PCh1_ID */
1404
case 0x44a: /* DMA_PChG_ID */
1405
case 0x44c: /* DMA_PChD_ID */
1409
case 0x44e: /* DMA_CAPS_0_U */
1410
*ret = (s->caps[0] >> 16) & 0xffff;
1412
case 0x450: /* DMA_CAPS_0_L */
1413
*ret = (s->caps[0] >> 0) & 0xffff;
1416
case 0x452: /* DMA_CAPS_1_U */
1417
*ret = (s->caps[1] >> 16) & 0xffff;
1419
case 0x454: /* DMA_CAPS_1_L */
1420
*ret = (s->caps[1] >> 0) & 0xffff;
1423
case 0x456: /* DMA_CAPS_2 */
1427
case 0x458: /* DMA_CAPS_3 */
1431
case 0x45a: /* DMA_CAPS_4 */
1435
case 0x460: /* DMA_PCh2_SR */
1436
case 0x480: /* DMA_PCh0_SR */
1437
case 0x482: /* DMA_PCh1_SR */
1438
case 0x4c0: /* DMA_PChD_SR_0 */
1439
printf("%s: Physical Channel Status Registers not implemented.\n",
1450
static uint64_t omap_dma_read(void *opaque, hwaddr addr,
1453
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
1458
return omap_badwidth_read16(opaque, addr);
1462
case 0x300 ... 0x3fe:
1463
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
1464
if (omap_dma_3_1_lcd_read(&s->lcd_ch, addr, &ret))
1469
case 0x000 ... 0x2fe:
1471
ch = (addr >> 6) & 0x0f;
1472
if (omap_dma_ch_reg_read(s, &s->ch[ch], reg, &ret))
1476
case 0x404 ... 0x4fe:
1477
if (s->model <= omap_dma_3_1)
1481
if (omap_dma_sys_read(s, addr, &ret))
1485
case 0xb00 ... 0xbfe:
1486
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
1487
if (omap_dma_3_2_lcd_read(&s->lcd_ch, addr, &ret))
1498
static void omap_dma_write(void *opaque, hwaddr addr,
1499
uint64_t value, unsigned size)
1501
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
1505
return omap_badwidth_write16(opaque, addr, value);
1509
case 0x300 ... 0x3fe:
1510
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
1511
if (omap_dma_3_1_lcd_write(&s->lcd_ch, addr, value))
1516
case 0x000 ... 0x2fe:
1518
ch = (addr >> 6) & 0x0f;
1519
if (omap_dma_ch_reg_write(s, &s->ch[ch], reg, value))
1523
case 0x404 ... 0x4fe:
1524
if (s->model <= omap_dma_3_1)
1528
if (omap_dma_sys_write(s, addr, value))
1532
case 0xb00 ... 0xbfe:
1533
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
1534
if (omap_dma_3_2_lcd_write(&s->lcd_ch, addr, value))
1544
static const MemoryRegionOps omap_dma_ops = {
1545
.read = omap_dma_read,
1546
.write = omap_dma_write,
1547
.endianness = DEVICE_NATIVE_ENDIAN,
1550
static void omap_dma_request(void *opaque, int drq, int req)
1552
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
1553
/* The request pins are level triggered in QEMU. */
1555
if (~s->dma->drqbmp & (1ULL << drq)) {
1556
s->dma->drqbmp |= 1ULL << drq;
1557
omap_dma_process_request(s, drq);
1560
s->dma->drqbmp &= ~(1ULL << drq);
1563
/* XXX: this won't be needed once soc_dma knows about clocks. */
1564
static void omap_dma_clk_update(void *opaque, int line, int on)
1566
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
1569
s->dma->freq = omap_clk_getrate(s->clk);
1571
for (i = 0; i < s->chans; i ++)
1572
if (s->ch[i].active)
1573
soc_dma_set_request(s->ch[i].dma, on);
1576
static void omap_dma_setcaps(struct omap_dma_s *s)
1584
/* XXX Only available for sDMA */
1586
(1 << 19) | /* Constant Fill Capability */
1587
(1 << 18); /* Transparent BLT Capability */
1589
(1 << 1); /* 1-bit palettized capability (DMA 3.2 only) */
1591
(1 << 8) | /* SEPARATE_SRC_AND_DST_INDEX_CPBLTY */
1592
(1 << 7) | /* DST_DOUBLE_INDEX_ADRS_CPBLTY */
1593
(1 << 6) | /* DST_SINGLE_INDEX_ADRS_CPBLTY */
1594
(1 << 5) | /* DST_POST_INCRMNT_ADRS_CPBLTY */
1595
(1 << 4) | /* DST_CONST_ADRS_CPBLTY */
1596
(1 << 3) | /* SRC_DOUBLE_INDEX_ADRS_CPBLTY */
1597
(1 << 2) | /* SRC_SINGLE_INDEX_ADRS_CPBLTY */
1598
(1 << 1) | /* SRC_POST_INCRMNT_ADRS_CPBLTY */
1599
(1 << 0); /* SRC_CONST_ADRS_CPBLTY */
1601
(1 << 6) | /* BLOCK_SYNCHR_CPBLTY (DMA 4 only) */
1602
(1 << 7) | /* PKT_SYNCHR_CPBLTY (DMA 4 only) */
1603
(1 << 5) | /* CHANNEL_CHAINING_CPBLTY */
1604
(1 << 4) | /* LCh_INTERLEAVE_CPBLTY */
1605
(1 << 3) | /* AUTOINIT_REPEAT_CPBLTY (DMA 3.2 only) */
1606
(1 << 2) | /* AUTOINIT_ENDPROG_CPBLTY (DMA 3.2 only) */
1607
(1 << 1) | /* FRAME_SYNCHR_CPBLTY */
1608
(1 << 0); /* ELMNT_SYNCHR_CPBLTY */
1610
(1 << 7) | /* PKT_INTERRUPT_CPBLTY (DMA 4 only) */
1611
(1 << 6) | /* SYNC_STATUS_CPBLTY */
1612
(1 << 5) | /* BLOCK_INTERRUPT_CPBLTY */
1613
(1 << 4) | /* LAST_FRAME_INTERRUPT_CPBLTY */
1614
(1 << 3) | /* FRAME_INTERRUPT_CPBLTY */
1615
(1 << 2) | /* HALF_FRAME_INTERRUPT_CPBLTY */
1616
(1 << 1) | /* EVENT_DROP_INTERRUPT_CPBLTY */
1617
(1 << 0); /* TIMEOUT_INTERRUPT_CPBLTY (DMA 3.2 only) */
1622
struct soc_dma_s *omap_dma_init(hwaddr base, qemu_irq *irqs,
1623
MemoryRegion *sysmem,
1624
qemu_irq lcd_irq, struct omap_mpu_state_s *mpu, omap_clk clk,
1625
enum omap_dma_model model)
1627
int num_irqs, memsize, i;
1628
struct omap_dma_s *s = (struct omap_dma_s *)
1629
g_malloc0(sizeof(struct omap_dma_s));
1631
if (model <= omap_dma_3_1) {
1641
s->lcd_ch.irq = lcd_irq;
1642
s->lcd_ch.mpu = mpu;
1644
s->dma = soc_dma_init((model <= omap_dma_3_1) ? 9 : 16);
1645
s->dma->freq = omap_clk_getrate(clk);
1646
s->dma->transfer_fn = omap_dma_transfer_generic;
1647
s->dma->setup_fn = omap_dma_transfer_setup;
1648
s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
1652
s->ch[num_irqs].irq = irqs[num_irqs];
1653
for (i = 0; i < 3; i ++) {
1654
s->ch[i].sibling = &s->ch[i + 6];
1655
s->ch[i + 6].sibling = &s->ch[i];
1657
for (i = (model <= omap_dma_3_1) ? 8 : 15; i >= 0; i --) {
1658
s->ch[i].dma = &s->dma->ch[i];
1659
s->dma->ch[i].opaque = &s->ch[i];
1662
omap_dma_setcaps(s);
1663
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]);
1664
omap_dma_reset(s->dma);
1665
omap_dma_clk_update(s, 0, 1);
1667
memory_region_init_io(&s->iomem, NULL, &omap_dma_ops, s, "omap.dma", memsize);
1668
memory_region_add_subregion(sysmem, base, &s->iomem);
1670
mpu->drq = s->dma->drq;
1675
static void omap_dma_interrupts_4_update(struct omap_dma_s *s)
1677
struct omap_dma_channel_s *ch = s->ch;
1680
for (bmp = 0, bit = 1; bit; ch ++, bit <<= 1)
1683
ch->cstatus |= ch->status;
1686
if ((s->irqstat[0] |= s->irqen[0] & bmp))
1687
qemu_irq_raise(s->irq[0]);
1688
if ((s->irqstat[1] |= s->irqen[1] & bmp))
1689
qemu_irq_raise(s->irq[1]);
1690
if ((s->irqstat[2] |= s->irqen[2] & bmp))
1691
qemu_irq_raise(s->irq[2]);
1692
if ((s->irqstat[3] |= s->irqen[3] & bmp))
1693
qemu_irq_raise(s->irq[3]);
1696
static uint64_t omap_dma4_read(void *opaque, hwaddr addr,
1699
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
1700
int irqn = 0, chnum;
1701
struct omap_dma_channel_s *ch;
1704
return omap_badwidth_read16(opaque, addr);
1708
case 0x00: /* DMA4_REVISION */
1711
case 0x14: /* DMA4_IRQSTATUS_L3 */
1714
case 0x10: /* DMA4_IRQSTATUS_L2 */
1717
case 0x0c: /* DMA4_IRQSTATUS_L1 */
1720
case 0x08: /* DMA4_IRQSTATUS_L0 */
1721
return s->irqstat[irqn];
1723
case 0x24: /* DMA4_IRQENABLE_L3 */
1726
case 0x20: /* DMA4_IRQENABLE_L2 */
1729
case 0x1c: /* DMA4_IRQENABLE_L1 */
1732
case 0x18: /* DMA4_IRQENABLE_L0 */
1733
return s->irqen[irqn];
1735
case 0x28: /* DMA4_SYSSTATUS */
1736
return 1; /* RESETDONE */
1738
case 0x2c: /* DMA4_OCP_SYSCONFIG */
1741
case 0x64: /* DMA4_CAPS_0 */
1743
case 0x6c: /* DMA4_CAPS_2 */
1745
case 0x70: /* DMA4_CAPS_3 */
1747
case 0x74: /* DMA4_CAPS_4 */
1750
case 0x78: /* DMA4_GCR */
1753
case 0x80 ... 0xfff:
1755
chnum = addr / 0x60;
1757
addr -= chnum * 0x60;
1765
/* Per-channel registers */
1767
case 0x00: /* DMA4_CCR */
1768
return (ch->buf_disable << 25) |
1769
(ch->src_sync << 24) |
1770
(ch->prefetch << 23) |
1771
((ch->sync & 0x60) << 14) |
1773
(ch->transparent_copy << 17) |
1774
(ch->constant_fill << 16) |
1775
(ch->mode[1] << 14) |
1776
(ch->mode[0] << 12) |
1777
(0 << 10) | (0 << 9) |
1778
(ch->suspend << 8) |
1780
(ch->priority << 6) |
1781
(ch->fs << 5) | (ch->sync & 0x1f);
1783
case 0x04: /* DMA4_CLNK_CTRL */
1784
return (ch->link_enabled << 15) | ch->link_next_ch;
1786
case 0x08: /* DMA4_CICR */
1787
return ch->interrupts;
1789
case 0x0c: /* DMA4_CSR */
1792
case 0x10: /* DMA4_CSDP */
1793
return (ch->endian[0] << 21) |
1794
(ch->endian_lock[0] << 20) |
1795
(ch->endian[1] << 19) |
1796
(ch->endian_lock[1] << 18) |
1797
(ch->write_mode << 16) |
1798
(ch->burst[1] << 14) |
1799
(ch->pack[1] << 13) |
1800
(ch->translate[1] << 9) |
1801
(ch->burst[0] << 7) |
1802
(ch->pack[0] << 6) |
1803
(ch->translate[0] << 2) |
1804
(ch->data_type >> 1);
1806
case 0x14: /* DMA4_CEN */
1807
return ch->elements;
1809
case 0x18: /* DMA4_CFN */
1812
case 0x1c: /* DMA4_CSSA */
1815
case 0x20: /* DMA4_CDSA */
1818
case 0x24: /* DMA4_CSEI */
1819
return ch->element_index[0];
1821
case 0x28: /* DMA4_CSFI */
1822
return ch->frame_index[0];
1824
case 0x2c: /* DMA4_CDEI */
1825
return ch->element_index[1];
1827
case 0x30: /* DMA4_CDFI */
1828
return ch->frame_index[1];
1830
case 0x34: /* DMA4_CSAC */
1831
return ch->active_set.src & 0xffff;
1833
case 0x38: /* DMA4_CDAC */
1834
return ch->active_set.dest & 0xffff;
1836
case 0x3c: /* DMA4_CCEN */
1837
return ch->active_set.element;
1839
case 0x40: /* DMA4_CCFN */
1840
return ch->active_set.frame;
1842
case 0x44: /* DMA4_COLOR */
1843
/* XXX only in sDMA */
1852
static void omap_dma4_write(void *opaque, hwaddr addr,
1853
uint64_t value, unsigned size)
1855
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
1856
int chnum, irqn = 0;
1857
struct omap_dma_channel_s *ch;
1860
return omap_badwidth_write16(opaque, addr, value);
1864
case 0x14: /* DMA4_IRQSTATUS_L3 */
1867
case 0x10: /* DMA4_IRQSTATUS_L2 */
1870
case 0x0c: /* DMA4_IRQSTATUS_L1 */
1873
case 0x08: /* DMA4_IRQSTATUS_L0 */
1874
s->irqstat[irqn] &= ~value;
1875
if (!s->irqstat[irqn])
1876
qemu_irq_lower(s->irq[irqn]);
1879
case 0x24: /* DMA4_IRQENABLE_L3 */
1882
case 0x20: /* DMA4_IRQENABLE_L2 */
1885
case 0x1c: /* DMA4_IRQENABLE_L1 */
1888
case 0x18: /* DMA4_IRQENABLE_L0 */
1889
s->irqen[irqn] = value;
1892
case 0x2c: /* DMA4_OCP_SYSCONFIG */
1893
if (value & 2) /* SOFTRESET */
1894
omap_dma_reset(s->dma);
1895
s->ocp = value & 0x3321;
1896
if (((s->ocp >> 12) & 3) == 3) /* MIDLEMODE */
1897
fprintf(stderr, "%s: invalid DMA power mode\n", __FUNCTION__);
1900
case 0x78: /* DMA4_GCR */
1901
s->gcr = value & 0x00ff00ff;
1902
if ((value & 0xff) == 0x00) /* MAX_CHANNEL_FIFO_DEPTH */
1903
fprintf(stderr, "%s: wrong FIFO depth in GCR\n", __FUNCTION__);
1906
case 0x80 ... 0xfff:
1908
chnum = addr / 0x60;
1910
addr -= chnum * 0x60;
1913
case 0x00: /* DMA4_REVISION */
1914
case 0x28: /* DMA4_SYSSTATUS */
1915
case 0x64: /* DMA4_CAPS_0 */
1916
case 0x6c: /* DMA4_CAPS_2 */
1917
case 0x70: /* DMA4_CAPS_3 */
1918
case 0x74: /* DMA4_CAPS_4 */
1927
/* Per-channel registers */
1929
case 0x00: /* DMA4_CCR */
1930
ch->buf_disable = (value >> 25) & 1;
1931
ch->src_sync = (value >> 24) & 1; /* XXX For CamDMA must be 1 */
1932
if (ch->buf_disable && !ch->src_sync)
1933
fprintf(stderr, "%s: Buffering disable is not allowed in "
1934
"destination synchronised mode\n", __FUNCTION__);
1935
ch->prefetch = (value >> 23) & 1;
1936
ch->bs = (value >> 18) & 1;
1937
ch->transparent_copy = (value >> 17) & 1;
1938
ch->constant_fill = (value >> 16) & 1;
1939
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14);
1940
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12);
1941
ch->suspend = (value & 0x0100) >> 8;
1942
ch->priority = (value & 0x0040) >> 6;
1943
ch->fs = (value & 0x0020) >> 5;
1944
if (ch->fs && ch->bs && ch->mode[0] && ch->mode[1])
1945
fprintf(stderr, "%s: For a packet transfer at least one port "
1946
"must be constant-addressed\n", __FUNCTION__);
1947
ch->sync = (value & 0x001f) | ((value >> 14) & 0x0060);
1948
/* XXX must be 0x01 for CamDMA */
1951
omap_dma_enable_channel(s, ch);
1953
omap_dma_disable_channel(s, ch);
1957
case 0x04: /* DMA4_CLNK_CTRL */
1958
ch->link_enabled = (value >> 15) & 0x1;
1959
ch->link_next_ch = value & 0x1f;
1962
case 0x08: /* DMA4_CICR */
1963
ch->interrupts = value & 0x09be;
1966
case 0x0c: /* DMA4_CSR */
1967
ch->cstatus &= ~value;
1970
case 0x10: /* DMA4_CSDP */
1971
ch->endian[0] =(value >> 21) & 1;
1972
ch->endian_lock[0] =(value >> 20) & 1;
1973
ch->endian[1] =(value >> 19) & 1;
1974
ch->endian_lock[1] =(value >> 18) & 1;
1975
if (ch->endian[0] != ch->endian[1])
1976
fprintf(stderr, "%s: DMA endiannes conversion enable attempt\n",
1978
ch->write_mode = (value >> 16) & 3;
1979
ch->burst[1] = (value & 0xc000) >> 14;
1980
ch->pack[1] = (value & 0x2000) >> 13;
1981
ch->translate[1] = (value & 0x1e00) >> 9;
1982
ch->burst[0] = (value & 0x0180) >> 7;
1983
ch->pack[0] = (value & 0x0040) >> 6;
1984
ch->translate[0] = (value & 0x003c) >> 2;
1985
if (ch->translate[0] | ch->translate[1])
1986
fprintf(stderr, "%s: bad MReqAddressTranslate sideband signal\n",
1988
ch->data_type = 1 << (value & 3);
1989
if ((value & 3) == 3)
1990
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
1993
case 0x14: /* DMA4_CEN */
1995
ch->elements = value & 0xffffff;
1998
case 0x18: /* DMA4_CFN */
1999
ch->frames = value & 0xffff;
2003
case 0x1c: /* DMA4_CSSA */
2004
ch->addr[0] = (hwaddr) (uint32_t) value;
2008
case 0x20: /* DMA4_CDSA */
2009
ch->addr[1] = (hwaddr) (uint32_t) value;
2013
case 0x24: /* DMA4_CSEI */
2014
ch->element_index[0] = (int16_t) value;
2018
case 0x28: /* DMA4_CSFI */
2019
ch->frame_index[0] = (int32_t) value;
2023
case 0x2c: /* DMA4_CDEI */
2024
ch->element_index[1] = (int16_t) value;
2028
case 0x30: /* DMA4_CDFI */
2029
ch->frame_index[1] = (int32_t) value;
2033
case 0x44: /* DMA4_COLOR */
2034
/* XXX only in sDMA */
2038
case 0x34: /* DMA4_CSAC */
2039
case 0x38: /* DMA4_CDAC */
2040
case 0x3c: /* DMA4_CCEN */
2041
case 0x40: /* DMA4_CCFN */
2050
static const MemoryRegionOps omap_dma4_ops = {
2051
.read = omap_dma4_read,
2052
.write = omap_dma4_write,
2053
.endianness = DEVICE_NATIVE_ENDIAN,
2056
struct soc_dma_s *omap_dma4_init(hwaddr base, qemu_irq *irqs,
2057
MemoryRegion *sysmem,
2058
struct omap_mpu_state_s *mpu, int fifo,
2059
int chans, omap_clk iclk, omap_clk fclk)
2062
struct omap_dma_s *s = (struct omap_dma_s *)
2063
g_malloc0(sizeof(struct omap_dma_s));
2065
s->model = omap_dma_4;
2070
s->dma = soc_dma_init(s->chans);
2071
s->dma->freq = omap_clk_getrate(fclk);
2072
s->dma->transfer_fn = omap_dma_transfer_generic;
2073
s->dma->setup_fn = omap_dma_transfer_setup;
2074
s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 64);
2076
for (i = 0; i < s->chans; i ++) {
2077
s->ch[i].dma = &s->dma->ch[i];
2078
s->dma->ch[i].opaque = &s->ch[i];
2081
memcpy(&s->irq, irqs, sizeof(s->irq));
2082
s->intr_update = omap_dma_interrupts_4_update;
2084
omap_dma_setcaps(s);
2085
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]);
2086
omap_dma_reset(s->dma);
2087
omap_dma_clk_update(s, 0, !!s->dma->freq);
2089
memory_region_init_io(&s->iomem, NULL, &omap_dma4_ops, s, "omap.dma4", 0x1000);
2090
memory_region_add_subregion(sysmem, base, &s->iomem);
2092
mpu->drq = s->dma->drq;
2097
struct omap_dma_lcd_channel_s *omap_dma_get_lcdch(struct soc_dma_s *dma)
2099
struct omap_dma_s *s = dma->opaque;