* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu-common.h"
#include "qemu-timer.h"
#include "omap.h"
#include "irq.h"
+#include "soc_dma.h"
struct omap_dma_channel_s {
/* transfer data */
int burst[2];
int pack[2];
+ int endian[2];
+ int endian_lock[2];
+ int translate[2];
enum omap_dma_port port[2];
target_phys_addr_t addr[2];
omap_dma_addressing_t mode[2];
- uint16_t elements;
+ uint32_t elements;
uint16_t frames;
- int16_t frame_index[2];
+ int32_t frame_index[2];
int16_t element_index[2];
int data_type;
int transparent_copy;
int constant_fill;
uint32_t color;
+ int prefetch;
/* auto init and linked channel data */
int end_prog;
/* interruption data */
int interrupts;
int status;
+ int cstatus;
/* state data */
int active;
int enable;
int sync;
+ int src_sync;
int pending_request;
int waiting_end_prog;
uint16_t cpc;
+ int set_update;
/* sync type */
int fs;
target_phys_addr_t src, dest;
int frame;
int element;
+ int pck_element;
int frame_delta[2];
int elem_delta[2];
int frames;
int elements;
+ int pck_elements;
} active_set;
+ struct soc_dma_ch_s *dma;
+
/* unused parameters */
+ int write_mode;
int priority;
int interleave_disabled;
int type;
+ int suspend;
+ int buf_disable;
};
struct omap_dma_s {
- QEMUTimer *tm;
+ struct soc_dma_s *dma;
+
struct omap_mpu_state_s *mpu;
- target_phys_addr_t base;
omap_clk clk;
- int64_t delay;
- uint32_t drq;
+ qemu_irq irq[4];
+ void (*intr_update)(struct omap_dma_s *s);
enum omap_dma_model model;
int omap_3_1_mapping_disabled;
- uint16_t gcr;
- int run_count;
+ uint32_t gcr;
+ uint32_t ocp;
+ uint32_t caps[5];
+ uint32_t irqen[4];
+ uint32_t irqstat[4];
int chans;
- struct omap_dma_channel_s ch[16];
+ struct omap_dma_channel_s ch[32];
struct omap_dma_lcd_channel_s lcd_ch;
};
#define LAST_FRAME_INTR (1 << 4)
#define END_BLOCK_INTR (1 << 5)
#define SYNC (1 << 6)
+#define END_PKT_INTR (1 << 7)
+#define TRANS_ERR_INTR (1 << 8)
+#define MISALIGN_INTR (1 << 11)
-static void omap_dma_interrupts_update(struct omap_dma_s *s)
+static inline void omap_dma_interrupts_update(struct omap_dma_s *s)
{
- struct omap_dma_channel_s *ch = s->ch;
- int i;
-
- if (s->omap_3_1_mapping_disabled) {
- for (i = 0; i < s->chans; i ++, ch ++)
- if (ch->status)
- qemu_irq_raise(ch->irq);
- } else {
- /* First three interrupts are shared between two channels each. */
- for (i = 0; i < 6; i ++, ch ++) {
- if (ch->status || (ch->sibling && ch->sibling->status))
- qemu_irq_raise(ch->irq);
- }
- }
+ return s->intr_update(s);
}
-static void omap_dma_channel_load(struct omap_dma_s *s,
- struct omap_dma_channel_s *ch)
+static void omap_dma_channel_load(struct omap_dma_channel_s *ch)
{
struct omap_dma_reg_set_s *a = &ch->active_set;
- int i;
+ int i, normal;
int omap_3_1 = !ch->omap_3_1_compatible_disable;
/*
a->dest = ch->addr[1];
a->frames = ch->frames;
a->elements = ch->elements;
+ a->pck_elements = ch->frame_index[!ch->src_sync];
a->frame = 0;
a->element = 0;
+ a->pck_element = 0;
if (unlikely(!ch->elements || !ch->frames)) {
printf("%s: bad DMA request\n", __FUNCTION__);
default:
break;
}
+
+ normal = !ch->transparent_copy && !ch->constant_fill &&
+ /* FIFO is big-endian so either (ch->endian[n] == 1) OR
+ * (ch->endian_lock[n] == 1) mean no endianism conversion. */
+ (ch->endian[0] | ch->endian_lock[0]) ==
+ (ch->endian[1] | ch->endian_lock[1]);
+ for (i = 0; i < 2; i ++) {
+ /* TODO: for a->frame_delta[i] > 0 still use the fast path, just
+ * limit min_elems in omap_dma_transfer_setup to the nearest frame
+ * end. */
+ if (!a->elem_delta[i] && normal &&
+ (a->frames == 1 || !a->frame_delta[i]))
+ ch->dma->type[i] = soc_dma_access_const;
+ else if (a->elem_delta[i] == ch->data_type && normal &&
+ (a->frames == 1 || !a->frame_delta[i]))
+ ch->dma->type[i] = soc_dma_access_linear;
+ else
+ ch->dma->type[i] = soc_dma_access_other;
+
+ ch->dma->vaddr[i] = ch->addr[i];
+ }
+ soc_dma_ch_update(ch->dma);
}
static void omap_dma_activate_channel(struct omap_dma_s *s,
struct omap_dma_channel_s *ch)
{
if (!ch->active) {
+ if (ch->set_update) {
+ /* It's not clear when the active set is supposed to be
+ * loaded from registers. We're already loading it when the
+ * channel is enabled, and for some guests this is not enough
+ * but that may be also because of a race condition (no
+ * delays in qemu) in the guest code, which we're just
+ * working around here. */
+ omap_dma_channel_load(ch);
+ ch->set_update = 0;
+ }
+
ch->active = 1;
+ soc_dma_set_request(ch->dma, 1);
if (ch->sync)
ch->status |= SYNC;
- s->run_count ++;
}
-
- if (s->delay && !qemu_timer_pending(s->tm))
- qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay);
}
static void omap_dma_deactivate_channel(struct omap_dma_s *s,
/* Update cpc */
ch->cpc = ch->active_set.dest & 0xffff;
- if (ch->pending_request && !ch->waiting_end_prog) {
+ if (ch->pending_request && !ch->waiting_end_prog && ch->enable) {
/* Don't deactivate the channel */
ch->pending_request = 0;
- if (ch->enable)
- return;
+ return;
}
/* Don't deactive the channel if it is synchronized and the DMA request is
active */
- if (ch->sync && (s->drq & (1 << ch->sync)) && ch->enable)
+ if (ch->sync && ch->enable && (s->dma->drqbmp & (1 << ch->sync)))
return;
if (ch->active) {
ch->active = 0;
ch->status &= ~SYNC;
- s->run_count --;
+ soc_dma_set_request(ch->dma, 0);
}
-
- if (!s->run_count)
- qemu_del_timer(s->tm);
}
static void omap_dma_enable_channel(struct omap_dma_s *s,
if (!ch->enable) {
ch->enable = 1;
ch->waiting_end_prog = 0;
- omap_dma_channel_load(s, ch);
- if ((!ch->sync) || (s->drq & (1 << ch->sync)))
+ omap_dma_channel_load(ch);
+ /* TODO: theoretically if ch->sync && ch->prefetch &&
+ * !s->dma->drqbmp[ch->sync], we should also activate and fetch
+ * from source and then stall until signalled. */
+ if ((!ch->sync) || (s->dma->drqbmp & (1 << ch->sync)))
omap_dma_activate_channel(s, ch);
}
}
}
}
+static void omap_dma_interrupts_3_1_update(struct omap_dma_s *s)
+{
+ struct omap_dma_channel_s *ch = s->ch;
+
+ /* First three interrupts are shared between two channels each. */
+ if (ch[0].status | ch[6].status)
+ qemu_irq_raise(ch[0].irq);
+ if (ch[1].status | ch[7].status)
+ qemu_irq_raise(ch[1].irq);
+ if (ch[2].status | ch[8].status)
+ qemu_irq_raise(ch[2].irq);
+ if (ch[3].status)
+ qemu_irq_raise(ch[3].irq);
+ if (ch[4].status)
+ qemu_irq_raise(ch[4].irq);
+ if (ch[5].status)
+ qemu_irq_raise(ch[5].irq);
+}
+
+static void omap_dma_interrupts_3_2_update(struct omap_dma_s *s)
+{
+ struct omap_dma_channel_s *ch = s->ch;
+ int i;
+
+ for (i = s->chans; i; ch ++, i --)
+ if (ch->status)
+ qemu_irq_raise(ch->irq);
+}
+
static void omap_dma_enable_3_1_mapping(struct omap_dma_s *s)
{
s->omap_3_1_mapping_disabled = 0;
s->chans = 9;
+ s->intr_update = omap_dma_interrupts_3_1_update;
}
static void omap_dma_disable_3_1_mapping(struct omap_dma_s *s)
{
s->omap_3_1_mapping_disabled = 1;
s->chans = 16;
+ s->intr_update = omap_dma_interrupts_3_2_update;
}
static void omap_dma_process_request(struct omap_dma_s *s, int request)
omap_dma_interrupts_update(s);
}
-static void omap_dma_channel_run(struct omap_dma_s *s)
+static void omap_dma_transfer_generic(struct soc_dma_ch_s *dma)
{
- int n = s->chans;
- uint16_t status;
uint8_t value[4];
+ struct omap_dma_channel_s *ch = dma->opaque;
+ struct omap_dma_reg_set_s *a = &ch->active_set;
+ int bytes = dma->bytes;
+#ifdef MULTI_REQ
+ uint16_t status = ch->status;
+#endif
+
+ do {
+ /* Transfer a single element */
+ /* FIXME: check the endianness */
+ if (!ch->constant_fill)
+ cpu_physical_memory_read(a->src, value, ch->data_type);
+ else
+ *(uint32_t *) value = ch->color;
+
+ if (!ch->transparent_copy || *(uint32_t *) value != ch->color)
+ cpu_physical_memory_write(a->dest, value, ch->data_type);
+
+ a->src += a->elem_delta[0];
+ a->dest += a->elem_delta[1];
+ a->element ++;
+
+#ifndef MULTI_REQ
+ if (a->element == a->elements) {
+ /* End of Frame */
+ a->element = 0;
+ a->src += a->frame_delta[0];
+ a->dest += a->frame_delta[1];
+ a->frame ++;
+
+ /* If the channel is async, update cpc */
+ if (!ch->sync)
+ ch->cpc = a->dest & 0xffff;
+ }
+ } while ((bytes -= ch->data_type));
+#else
+ /* If the channel is element synchronized, deactivate it */
+ if (ch->sync && !ch->fs && !ch->bs)
+ omap_dma_deactivate_channel(s, ch);
+
+ /* If it is the last frame, set the LAST_FRAME interrupt */
+ if (a->element == 1 && a->frame == a->frames - 1)
+ if (ch->interrupts & LAST_FRAME_INTR)
+ ch->status |= LAST_FRAME_INTR;
+
+ /* If the half of the frame was reached, set the HALF_FRAME
+ interrupt */
+ if (a->element == (a->elements >> 1))
+ if (ch->interrupts & HALF_FRAME_INTR)
+ ch->status |= HALF_FRAME_INTR;
+
+ if (ch->fs && ch->bs) {
+ a->pck_element ++;
+ /* Check if a full packet has beed transferred. */
+ if (a->pck_element == a->pck_elements) {
+ a->pck_element = 0;
+
+ /* Set the END_PKT interrupt */
+ if ((ch->interrupts & END_PKT_INTR) && !ch->src_sync)
+ ch->status |= END_PKT_INTR;
+
+ /* If the channel is packet-synchronized, deactivate it */
+ if (ch->sync)
+ omap_dma_deactivate_channel(s, ch);
+ }
+ }
+
+ if (a->element == a->elements) {
+ /* End of Frame */
+ a->element = 0;
+ a->src += a->frame_delta[0];
+ a->dest += a->frame_delta[1];
+ a->frame ++;
+
+ /* If the channel is frame synchronized, deactivate it */
+ if (ch->sync && ch->fs && !ch->bs)
+ omap_dma_deactivate_channel(s, ch);
+
+ /* If the channel is async, update cpc */
+ if (!ch->sync)
+ ch->cpc = a->dest & 0xffff;
+
+ /* Set the END_FRAME interrupt */
+ if (ch->interrupts & END_FRAME_INTR)
+ ch->status |= END_FRAME_INTR;
+
+ if (a->frame == a->frames) {
+ /* End of Block */
+ /* Disable the channel */
+
+ if (ch->omap_3_1_compatible_disable) {
+ omap_dma_disable_channel(s, ch);
+ if (ch->link_enabled)
+ omap_dma_enable_channel(s,
+ &s->ch[ch->link_next_ch]);
+ } else {
+ if (!ch->auto_init)
+ omap_dma_disable_channel(s, ch);
+ else if (ch->repeat || ch->end_prog)
+ omap_dma_channel_load(ch);
+ else {
+ ch->waiting_end_prog = 1;
+ omap_dma_deactivate_channel(s, ch);
+ }
+ }
+
+ if (ch->interrupts & END_BLOCK_INTR)
+ ch->status |= END_BLOCK_INTR;
+ }
+ }
+ } while (status == ch->status && ch->active);
+
+ omap_dma_interrupts_update(s);
+#endif
+}
+
+enum {
+ omap_dma_intr_element_sync,
+ omap_dma_intr_last_frame,
+ omap_dma_intr_half_frame,
+ omap_dma_intr_frame,
+ omap_dma_intr_frame_sync,
+ omap_dma_intr_packet,
+ omap_dma_intr_packet_sync,
+ omap_dma_intr_block,
+ __omap_dma_intr_last,
+};
+
+static void omap_dma_transfer_setup(struct soc_dma_ch_s *dma)
+{
struct omap_dma_port_if_s *src_p, *dest_p;
struct omap_dma_reg_set_s *a;
- struct omap_dma_channel_s *ch;
-
- for (ch = s->ch; n; n --, ch ++) {
- if (!ch->active)
- continue;
+ struct omap_dma_channel_s *ch = dma->opaque;
+ struct omap_dma_s *s = dma->dma->opaque;
+ int frames, min_elems, elements[__omap_dma_intr_last];
- a = &ch->active_set;
+ a = &ch->active_set;
- src_p = &s->mpu->port[ch->port[0]];
- dest_p = &s->mpu->port[ch->port[1]];
- if ((!ch->constant_fill && !src_p->addr_valid(s->mpu, a->src)) ||
- (!dest_p->addr_valid(s->mpu, a->dest))) {
+ src_p = &s->mpu->port[ch->port[0]];
+ dest_p = &s->mpu->port[ch->port[1]];
+ if ((!ch->constant_fill && !src_p->addr_valid(s->mpu, a->src)) ||
+ (!dest_p->addr_valid(s->mpu, a->dest))) {
#if 0
- /* Bus time-out */
- if (ch->interrupts & TIMEOUT_INTR)
- ch->status |= TIMEOUT_INTR;
- omap_dma_deactivate_channel(s, ch);
- continue;
+ /* Bus time-out */
+ if (ch->interrupts & TIMEOUT_INTR)
+ ch->status |= TIMEOUT_INTR;
+ omap_dma_deactivate_channel(s, ch);
+ continue;
#endif
- printf("%s: Bus time-out in DMA%i operation\n",
- __FUNCTION__, s->chans - n);
- }
+ printf("%s: Bus time-out in DMA%i operation\n",
+ __FUNCTION__, dma->num);
+ }
- status = ch->status;
- while (status == ch->status && ch->active) {
- /* Transfer a single element */
- /* FIXME: check the endianness */
- if (!ch->constant_fill)
- cpu_physical_memory_read(a->src, value, ch->data_type);
- else
- *(uint32_t *) value = ch->color;
-
- if (!ch->transparent_copy ||
- *(uint32_t *) value != ch->color)
- cpu_physical_memory_write(a->dest, value, ch->data_type);
-
- a->src += a->elem_delta[0];
- a->dest += a->elem_delta[1];
- a->element ++;
-
- /* If the channel is element synchronized, deactivate it */
- if (ch->sync && !ch->fs && !ch->bs)
- omap_dma_deactivate_channel(s, ch);
+ min_elems = INT_MAX;
+
+ /* Check all the conditions that terminate the transfer starting
+ * with those that can occur the soonest. */
+#define INTR_CHECK(cond, id, nelements) \
+ if (cond) { \
+ elements[id] = nelements; \
+ if (elements[id] < min_elems) \
+ min_elems = elements[id]; \
+ } else \
+ elements[id] = INT_MAX;
+
+ /* Elements */
+ INTR_CHECK(
+ ch->sync && !ch->fs && !ch->bs,
+ omap_dma_intr_element_sync,
+ 1)
+
+ /* Frames */
+ /* TODO: for transfers where entire frames can be read and written
+ * using memcpy() but a->frame_delta is non-zero, try to still do
+ * transfers using soc_dma but limit min_elems to a->elements - ...
+ * See also the TODO in omap_dma_channel_load. */
+ INTR_CHECK(
+ (ch->interrupts & LAST_FRAME_INTR) &&
+ ((a->frame < a->frames - 1) || !a->element),
+ omap_dma_intr_last_frame,
+ (a->frames - a->frame - 2) * a->elements +
+ (a->elements - a->element + 1))
+ INTR_CHECK(
+ ch->interrupts & HALF_FRAME_INTR,
+ omap_dma_intr_half_frame,
+ (a->elements >> 1) +
+ (a->element >= (a->elements >> 1) ? a->elements : 0) -
+ a->element)
+ INTR_CHECK(
+ ch->sync && ch->fs && (ch->interrupts & END_FRAME_INTR),
+ omap_dma_intr_frame,
+ a->elements - a->element)
+ INTR_CHECK(
+ ch->sync && ch->fs && !ch->bs,
+ omap_dma_intr_frame_sync,
+ a->elements - a->element)
+
+ /* Packets */
+ INTR_CHECK(
+ ch->fs && ch->bs &&
+ (ch->interrupts & END_PKT_INTR) && !ch->src_sync,
+ omap_dma_intr_packet,
+ a->pck_elements - a->pck_element)
+ INTR_CHECK(
+ ch->fs && ch->bs && ch->sync,
+ omap_dma_intr_packet_sync,
+ a->pck_elements - a->pck_element)
+
+ /* Blocks */
+ INTR_CHECK(
+ 1,
+ omap_dma_intr_block,
+ (a->frames - a->frame - 1) * a->elements +
+ (a->elements - a->element))
+
+ dma->bytes = min_elems * ch->data_type;
+
+ /* Set appropriate interrupts and/or deactivate channels */
+
+#ifdef MULTI_REQ
+ /* TODO: should all of this only be done if dma->update, and otherwise
+ * inside omap_dma_transfer_generic below - check what's faster. */
+ if (dma->update) {
+#endif
- /* If it is the last frame, set the LAST_FRAME interrupt */
- if (a->element == 1 && a->frame == a->frames - 1)
- if (ch->interrupts & LAST_FRAME_INTR)
- ch->status |= LAST_FRAME_INTR;
-
- /* If the half of the frame was reached, set the HALF_FRAME
- interrupt */
- if (a->element == (a->elements >> 1))
- if (ch->interrupts & HALF_FRAME_INTR)
- ch->status |= HALF_FRAME_INTR;
-
- if (a->element == a->elements) {
- /* End of Frame */
- a->element = 0;
- a->src += a->frame_delta[0];
- a->dest += a->frame_delta[1];
- a->frame ++;
-
- /* If the channel is frame synchronized, deactivate it */
- if (ch->sync && ch->fs)
- omap_dma_deactivate_channel(s, ch);
+ /* If the channel is element synchronized, deactivate it */
+ if (min_elems == elements[omap_dma_intr_element_sync])
+ omap_dma_deactivate_channel(s, ch);
- /* If the channel is async, update cpc */
- if (!ch->sync)
- ch->cpc = a->dest & 0xffff;
+ /* If it is the last frame, set the LAST_FRAME interrupt */
+ if (min_elems == elements[omap_dma_intr_last_frame])
+ ch->status |= LAST_FRAME_INTR;
- /* Set the END_FRAME interrupt */
- if (ch->interrupts & END_FRAME_INTR)
- ch->status |= END_FRAME_INTR;
+ /* If exactly half of the frame was reached, set the HALF_FRAME
+ interrupt */
+ if (min_elems == elements[omap_dma_intr_half_frame])
+ ch->status |= HALF_FRAME_INTR;
- if (a->frame == a->frames) {
- /* End of Block */
- /* Disable the channel */
+ /* If a full packet has been transferred, set the END_PKT interrupt */
+ if (min_elems == elements[omap_dma_intr_packet])
+ ch->status |= END_PKT_INTR;
- if (ch->omap_3_1_compatible_disable) {
- omap_dma_disable_channel(s, ch);
- if (ch->link_enabled)
- omap_dma_enable_channel(s,
- &s->ch[ch->link_next_ch]);
- } else {
- if (!ch->auto_init)
- omap_dma_disable_channel(s, ch);
- else if (ch->repeat || ch->end_prog)
- omap_dma_channel_load(s, ch);
- else {
- ch->waiting_end_prog = 1;
- omap_dma_deactivate_channel(s, ch);
- }
- }
+ /* If the channel is packet-synchronized, deactivate it */
+ if (min_elems == elements[omap_dma_intr_packet_sync])
+ omap_dma_deactivate_channel(s, ch);
+
+ /* If the channel is frame synchronized, deactivate it */
+ if (min_elems == elements[omap_dma_intr_frame_sync])
+ omap_dma_deactivate_channel(s, ch);
- if (ch->interrupts & END_BLOCK_INTR)
- ch->status |= END_BLOCK_INTR;
+ /* Set the END_FRAME interrupt */
+ if (min_elems == elements[omap_dma_intr_frame])
+ ch->status |= END_FRAME_INTR;
+
+ if (min_elems == elements[omap_dma_intr_block]) {
+ /* End of Block */
+ /* Disable the channel */
+
+ if (ch->omap_3_1_compatible_disable) {
+ omap_dma_disable_channel(s, ch);
+ if (ch->link_enabled)
+ omap_dma_enable_channel(s, &s->ch[ch->link_next_ch]);
+ } else {
+ if (!ch->auto_init)
+ omap_dma_disable_channel(s, ch);
+ else if (ch->repeat || ch->end_prog)
+ omap_dma_channel_load(ch);
+ else {
+ ch->waiting_end_prog = 1;
+ omap_dma_deactivate_channel(s, ch);
}
}
+
+ if (ch->interrupts & END_BLOCK_INTR)
+ ch->status |= END_BLOCK_INTR;
+ }
+
+ /* Update packet number */
+ if (ch->fs && ch->bs) {
+ a->pck_element += min_elems;
+ a->pck_element %= a->pck_elements;
}
+
+ /* TODO: check if we really need to update anything here or perhaps we
+ * can skip part of this. */
+#ifndef MULTI_REQ
+ if (dma->update) {
+#endif
+ a->element += min_elems;
+
+ frames = a->element / a->elements;
+ a->element = a->element % a->elements;
+ a->frame += frames;
+ a->src += min_elems * a->elem_delta[0] + frames * a->frame_delta[0];
+ a->dest += min_elems * a->elem_delta[1] + frames * a->frame_delta[1];
+
+ /* If the channel is async, update cpc */
+ if (!ch->sync && frames)
+ ch->cpc = a->dest & 0xffff;
+
+ /* TODO: if the destination port is IMIF or EMIFF, set the dirty
+ * bits on it. */
+#ifndef MULTI_REQ
+ }
+#else
}
+#endif
omap_dma_interrupts_update(s);
- if (s->run_count && s->delay)
- qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay);
}
-void omap_dma_reset(struct omap_dma_s *s)
+void omap_dma_reset(struct soc_dma_s *dma)
{
int i;
-
- qemu_del_timer(s->tm);
- s->gcr = 0x0004;
- s->drq = 0x00000000;
- s->run_count = 0;
+ struct omap_dma_s *s = dma->opaque;
+
+ soc_dma_reset(s->dma);
+ if (s->model < omap_dma_4)
+ s->gcr = 0x0004;
+ else
+ s->gcr = 0x00010010;
+ s->ocp = 0x00000000;
+ memset(&s->irqstat, 0, sizeof(s->irqstat));
+ memset(&s->irqen, 0, sizeof(s->irqen));
s->lcd_ch.src = emiff;
s->lcd_ch.condition = 0;
s->lcd_ch.interrupts = 0;
s->lcd_ch.dual = 0;
- omap_dma_enable_3_1_mapping(s);
+ if (s->model < omap_dma_4)
+ omap_dma_enable_3_1_mapping(s);
for (i = 0; i < s->chans; i ++) {
+ s->ch[i].suspend = 0;
+ s->ch[i].prefetch = 0;
+ s->ch[i].buf_disable = 0;
+ s->ch[i].src_sync = 0;
memset(&s->ch[i].burst, 0, sizeof(s->ch[i].burst));
memset(&s->ch[i].port, 0, sizeof(s->ch[i].port));
memset(&s->ch[i].mode, 0, sizeof(s->ch[i].mode));
- memset(&s->ch[i].elements, 0, sizeof(s->ch[i].elements));
- memset(&s->ch[i].frames, 0, sizeof(s->ch[i].frames));
memset(&s->ch[i].frame_index, 0, sizeof(s->ch[i].frame_index));
memset(&s->ch[i].element_index, 0, sizeof(s->ch[i].element_index));
- memset(&s->ch[i].data_type, 0, sizeof(s->ch[i].data_type));
- memset(&s->ch[i].transparent_copy, 0,
- sizeof(s->ch[i].transparent_copy));
- memset(&s->ch[i].constant_fill, 0, sizeof(s->ch[i].constant_fill));
- memset(&s->ch[i].color, 0, sizeof(s->ch[i].color));
- memset(&s->ch[i].end_prog, 0, sizeof(s->ch[i].end_prog));
- memset(&s->ch[i].repeat, 0, sizeof(s->ch[i].repeat));
- memset(&s->ch[i].auto_init, 0, sizeof(s->ch[i].auto_init));
- memset(&s->ch[i].link_enabled, 0, sizeof(s->ch[i].link_enabled));
- memset(&s->ch[i].link_next_ch, 0, sizeof(s->ch[i].link_next_ch));
- s->ch[i].interrupts = 0x0003;
- memset(&s->ch[i].status, 0, sizeof(s->ch[i].status));
- memset(&s->ch[i].active, 0, sizeof(s->ch[i].active));
- memset(&s->ch[i].enable, 0, sizeof(s->ch[i].enable));
- memset(&s->ch[i].sync, 0, sizeof(s->ch[i].sync));
- memset(&s->ch[i].pending_request, 0, sizeof(s->ch[i].pending_request));
- memset(&s->ch[i].waiting_end_prog, 0,
- sizeof(s->ch[i].waiting_end_prog));
- memset(&s->ch[i].cpc, 0, sizeof(s->ch[i].cpc));
- memset(&s->ch[i].fs, 0, sizeof(s->ch[i].fs));
- memset(&s->ch[i].bs, 0, sizeof(s->ch[i].bs));
- memset(&s->ch[i].omap_3_1_compatible_disable, 0,
- sizeof(s->ch[i].omap_3_1_compatible_disable));
+ memset(&s->ch[i].endian, 0, sizeof(s->ch[i].endian));
+ memset(&s->ch[i].endian_lock, 0, sizeof(s->ch[i].endian_lock));
+ memset(&s->ch[i].translate, 0, sizeof(s->ch[i].translate));
+ s->ch[i].write_mode = 0;
+ s->ch[i].data_type = 0;
+ s->ch[i].transparent_copy = 0;
+ s->ch[i].constant_fill = 0;
+ s->ch[i].color = 0x00000000;
+ s->ch[i].end_prog = 0;
+ s->ch[i].repeat = 0;
+ s->ch[i].auto_init = 0;
+ s->ch[i].link_enabled = 0;
+ if (s->model < omap_dma_4)
+ s->ch[i].interrupts = 0x0003;
+ else
+ s->ch[i].interrupts = 0x0000;
+ s->ch[i].status = 0;
+ s->ch[i].cstatus = 0;
+ s->ch[i].active = 0;
+ s->ch[i].enable = 0;
+ s->ch[i].sync = 0;
+ s->ch[i].pending_request = 0;
+ s->ch[i].waiting_end_prog = 0;
+ s->ch[i].cpc = 0x0000;
+ s->ch[i].fs = 0;
+ s->ch[i].bs = 0;
+ s->ch[i].omap_3_1_compatible_disable = 0;
memset(&s->ch[i].active_set, 0, sizeof(s->ch[i].active_set));
- memset(&s->ch[i].priority, 0, sizeof(s->ch[i].priority));
- memset(&s->ch[i].interleave_disabled, 0,
- sizeof(s->ch[i].interleave_disabled));
- memset(&s->ch[i].type, 0, sizeof(s->ch[i].type));
+ s->ch[i].priority = 0;
+ s->ch[i].interleave_disabled = 0;
+ s->ch[i].type = 0;
}
}
break;
case 0x02: /* SYS_DMA_CCR_CH0 */
- if (s->model == omap_dma_3_1)
+ if (s->model <= omap_dma_3_1)
*value = 0 << 10; /* FIFO_FLUSH reads as 0 */
else
*value = ch->omap_3_1_compatible_disable << 10;
ch->burst[0] = (value & 0x0180) >> 7;
ch->pack[0] = (value & 0x0040) >> 6;
ch->port[0] = (enum omap_dma_port) ((value & 0x003c) >> 2);
- ch->data_type = (1 << (value & 3));
- if (ch->port[0] >= omap_dma_port_last)
+ ch->data_type = 1 << (value & 3);
+ if (ch->port[0] >= __omap_dma_port_last)
printf("%s: invalid DMA port %i\n", __FUNCTION__,
ch->port[0]);
- if (ch->port[1] >= omap_dma_port_last)
+ if (ch->port[1] >= __omap_dma_port_last)
printf("%s: invalid DMA port %i\n", __FUNCTION__,
ch->port[1]);
if ((value & 3) == 3)
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14);
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12);
ch->end_prog = (value & 0x0800) >> 11;
- if (s->model > omap_dma_3_1)
+ if (s->model >= omap_dma_3_2)
ch->omap_3_1_compatible_disable = (value >> 10) & 0x1;
ch->repeat = (value & 0x0200) >> 9;
ch->auto_init = (value & 0x0100) >> 8;
break;
case 0x04: /* SYS_DMA_CICR_CH0 */
- ch->interrupts = value;
+ ch->interrupts = value & 0x3f;
break;
case 0x06: /* SYS_DMA_CSR_CH0 */
break;
case 0x24: /* DMA_CCR2 */
- ch->bs = (value >> 2) & 0x1;
+ ch->bs = (value >> 2) & 0x1;
ch->transparent_copy = (value >> 1) & 0x1;
ch->constant_fill = value & 0x1;
break;
case 0x408: /* DMA_GRST */
if (value & 0x1)
- omap_dma_reset(s);
+ omap_dma_reset(s->dma);
break;
default:
break;
case 0x44e: /* DMA_CAPS_0_U */
- *ret = (1 << 3) | /* Constant Fill Capacity */
- (1 << 2); /* Transparent BLT Capacity */
+ *ret = (s->caps[0] >> 16) & 0xffff;
break;
-
case 0x450: /* DMA_CAPS_0_L */
- case 0x452: /* DMA_CAPS_1_U */
- *ret = 0;
+ *ret = (s->caps[0] >> 0) & 0xffff;
break;
+ case 0x452: /* DMA_CAPS_1_U */
+ *ret = (s->caps[1] >> 16) & 0xffff;
+ break;
case 0x454: /* DMA_CAPS_1_L */
- *ret = (1 << 1); /* 1-bit palletized capability */
+ *ret = (s->caps[1] >> 0) & 0xffff;
break;
case 0x456: /* DMA_CAPS_2 */
- *ret = (1 << 8) | /* SSDIC */
- (1 << 7) | /* DDIAC */
- (1 << 6) | /* DSIAC */
- (1 << 5) | /* DPIAC */
- (1 << 4) | /* DCAC */
- (1 << 3) | /* SDIAC */
- (1 << 2) | /* SSIAC */
- (1 << 1) | /* SPIAC */
- 1; /* SCAC */
+ *ret = s->caps[2];
break;
case 0x458: /* DMA_CAPS_3 */
- *ret = (1 << 5) | /* CCC */
- (1 << 4) | /* IC */
- (1 << 3) | /* ARC */
- (1 << 2) | /* AEC */
- (1 << 1) | /* FSC */
- 1; /* ESC */
+ *ret = s->caps[3];
break;
case 0x45a: /* DMA_CAPS_4 */
- *ret = (1 << 6) | /* SSC */
- (1 << 5) | /* BIC */
- (1 << 4) | /* LFIC */
- (1 << 3) | /* FIC */
- (1 << 2) | /* HFIC */
- (1 << 1) | /* EDIC */
- 1; /* TOIC */
+ *ret = s->caps[4];
break;
case 0x460: /* DMA_PCh2_SR */
static uint32_t omap_dma_read(void *opaque, target_phys_addr_t addr)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
- int reg, ch, offset = addr - s->base;
+ int reg, ch;
uint16_t ret;
- switch (offset) {
+ switch (addr) {
case 0x300 ... 0x3fe:
- if (s->model == omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
- if (omap_dma_3_1_lcd_read(&s->lcd_ch, offset, &ret))
+ if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
+ if (omap_dma_3_1_lcd_read(&s->lcd_ch, addr, &ret))
break;
return ret;
}
/* Fall through. */
case 0x000 ... 0x2fe:
- reg = offset & 0x3f;
- ch = (offset >> 6) & 0x0f;
+ reg = addr & 0x3f;
+ ch = (addr >> 6) & 0x0f;
if (omap_dma_ch_reg_read(s, &s->ch[ch], reg, &ret))
break;
return ret;
case 0x404 ... 0x4fe:
- if (s->model == omap_dma_3_1)
+ if (s->model <= omap_dma_3_1)
break;
/* Fall through. */
case 0x400:
- if (omap_dma_sys_read(s, offset, &ret))
+ if (omap_dma_sys_read(s, addr, &ret))
break;
return ret;
case 0xb00 ... 0xbfe:
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
- if (omap_dma_3_2_lcd_read(&s->lcd_ch, offset, &ret))
+ if (omap_dma_3_2_lcd_read(&s->lcd_ch, addr, &ret))
break;
return ret;
}
uint32_t value)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
- int reg, ch, offset = addr - s->base;
+ int reg, ch;
- switch (offset) {
+ switch (addr) {
case 0x300 ... 0x3fe:
- if (s->model == omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
- if (omap_dma_3_1_lcd_write(&s->lcd_ch, offset, value))
+ if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
+ if (omap_dma_3_1_lcd_write(&s->lcd_ch, addr, value))
break;
return;
}
/* Fall through. */
case 0x000 ... 0x2fe:
- reg = offset & 0x3f;
- ch = (offset >> 6) & 0x0f;
+ reg = addr & 0x3f;
+ ch = (addr >> 6) & 0x0f;
if (omap_dma_ch_reg_write(s, &s->ch[ch], reg, value))
break;
return;
case 0x404 ... 0x4fe:
- if (s->model == omap_dma_3_1)
+ if (s->model <= omap_dma_3_1)
break;
case 0x400:
/* Fall through. */
- if (omap_dma_sys_write(s, offset, value))
+ if (omap_dma_sys_write(s, addr, value))
break;
return;
case 0xb00 ... 0xbfe:
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
- if (omap_dma_3_2_lcd_write(&s->lcd_ch, offset, value))
+ if (omap_dma_3_2_lcd_write(&s->lcd_ch, addr, value))
break;
return;
}
OMAP_BAD_REG(addr);
}
-static CPUReadMemoryFunc *omap_dma_readfn[] = {
+static CPUReadMemoryFunc * const omap_dma_readfn[] = {
omap_badwidth_read16,
omap_dma_read,
omap_badwidth_read16,
};
-static CPUWriteMemoryFunc *omap_dma_writefn[] = {
+static CPUWriteMemoryFunc * const omap_dma_writefn[] = {
omap_badwidth_write16,
omap_dma_write,
omap_badwidth_write16,
static void omap_dma_request(void *opaque, int drq, int req)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
- /* The request pins are level triggered. */
+ /* The request pins are level triggered in QEMU. */
if (req) {
- if (~s->drq & (1 << drq)) {
- s->drq |= 1 << drq;
+ if (~s->dma->drqbmp & (1 << drq)) {
+ s->dma->drqbmp |= 1 << drq;
omap_dma_process_request(s, drq);
}
} else
- s->drq &= ~(1 << drq);
+ s->dma->drqbmp &= ~(1 << drq);
}
+/* XXX: this won't be needed once soc_dma knows about clocks. */
static void omap_dma_clk_update(void *opaque, int line, int on)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
+ int i;
- if (on) {
- /* TODO: make a clever calculation */
- s->delay = ticks_per_sec >> 8;
- if (s->run_count)
- qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay);
- } else {
- s->delay = 0;
- qemu_del_timer(s->tm);
+ s->dma->freq = omap_clk_getrate(s->clk);
+
+ for (i = 0; i < s->chans; i ++)
+ if (s->ch[i].active)
+ soc_dma_set_request(s->ch[i].dma, on);
+}
+
+static void omap_dma_setcaps(struct omap_dma_s *s)
+{
+ switch (s->model) {
+ default:
+ case omap_dma_3_1:
+ break;
+ case omap_dma_3_2:
+ case omap_dma_4:
+ /* XXX Only available for sDMA */
+ s->caps[0] =
+ (1 << 19) | /* Constant Fill Capability */
+ (1 << 18); /* Transparent BLT Capability */
+ s->caps[1] =
+ (1 << 1); /* 1-bit palettized capability (DMA 3.2 only) */
+ s->caps[2] =
+ (1 << 8) | /* SEPARATE_SRC_AND_DST_INDEX_CPBLTY */
+ (1 << 7) | /* DST_DOUBLE_INDEX_ADRS_CPBLTY */
+ (1 << 6) | /* DST_SINGLE_INDEX_ADRS_CPBLTY */
+ (1 << 5) | /* DST_POST_INCRMNT_ADRS_CPBLTY */
+ (1 << 4) | /* DST_CONST_ADRS_CPBLTY */
+ (1 << 3) | /* SRC_DOUBLE_INDEX_ADRS_CPBLTY */
+ (1 << 2) | /* SRC_SINGLE_INDEX_ADRS_CPBLTY */
+ (1 << 1) | /* SRC_POST_INCRMNT_ADRS_CPBLTY */
+ (1 << 0); /* SRC_CONST_ADRS_CPBLTY */
+ s->caps[3] =
+ (1 << 6) | /* BLOCK_SYNCHR_CPBLTY (DMA 4 only) */
+ (1 << 7) | /* PKT_SYNCHR_CPBLTY (DMA 4 only) */
+ (1 << 5) | /* CHANNEL_CHAINING_CPBLTY */
+ (1 << 4) | /* LCh_INTERLEAVE_CPBLTY */
+ (1 << 3) | /* AUTOINIT_REPEAT_CPBLTY (DMA 3.2 only) */
+ (1 << 2) | /* AUTOINIT_ENDPROG_CPBLTY (DMA 3.2 only) */
+ (1 << 1) | /* FRAME_SYNCHR_CPBLTY */
+ (1 << 0); /* ELMNT_SYNCHR_CPBLTY */
+ s->caps[4] =
+ (1 << 7) | /* PKT_INTERRUPT_CPBLTY (DMA 4 only) */
+ (1 << 6) | /* SYNC_STATUS_CPBLTY */
+ (1 << 5) | /* BLOCK_INTERRUPT_CPBLTY */
+ (1 << 4) | /* LAST_FRAME_INTERRUPT_CPBLTY */
+ (1 << 3) | /* FRAME_INTERRUPT_CPBLTY */
+ (1 << 2) | /* HALF_FRAME_INTERRUPT_CPBLTY */
+ (1 << 1) | /* EVENT_DROP_INTERRUPT_CPBLTY */
+ (1 << 0); /* TIMEOUT_INTERRUPT_CPBLTY (DMA 3.2 only) */
+ break;
}
}
-struct omap_dma_s *omap_dma_init(target_phys_addr_t base, qemu_irq *irqs,
+struct soc_dma_s *omap_dma_init(target_phys_addr_t base, qemu_irq *irqs,
qemu_irq lcd_irq, struct omap_mpu_state_s *mpu, omap_clk clk,
enum omap_dma_model model)
{
struct omap_dma_s *s = (struct omap_dma_s *)
qemu_mallocz(sizeof(struct omap_dma_s));
- if (model == omap_dma_3_1) {
+ if (model <= omap_dma_3_1) {
num_irqs = 6;
memsize = 0x800;
} else {
num_irqs = 16;
memsize = 0xc00;
}
- s->base = base;
s->model = model;
s->mpu = mpu;
s->clk = clk;
s->lcd_ch.irq = lcd_irq;
s->lcd_ch.mpu = mpu;
+
+ s->dma = soc_dma_init((model <= omap_dma_3_1) ? 9 : 16);
+ s->dma->freq = omap_clk_getrate(clk);
+ s->dma->transfer_fn = omap_dma_transfer_generic;
+ s->dma->setup_fn = omap_dma_transfer_setup;
+ s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
+ s->dma->opaque = s;
+
while (num_irqs --)
s->ch[num_irqs].irq = irqs[num_irqs];
for (i = 0; i < 3; i ++) {
s->ch[i].sibling = &s->ch[i + 6];
s->ch[i + 6].sibling = &s->ch[i];
}
- s->tm = qemu_new_timer(vm_clock, (QEMUTimerCB *) omap_dma_channel_run, s);
+ for (i = (model <= omap_dma_3_1) ? 8 : 15; i >= 0; i --) {
+ s->ch[i].dma = &s->dma->ch[i];
+ s->dma->ch[i].opaque = &s->ch[i];
+ }
+
+ omap_dma_setcaps(s);
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]);
- mpu->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
- omap_dma_reset(s);
+ omap_dma_reset(s->dma);
omap_dma_clk_update(s, 0, 1);
- iomemtype = cpu_register_io_memory(0, omap_dma_readfn,
+ iomemtype = cpu_register_io_memory(omap_dma_readfn,
omap_dma_writefn, s);
- cpu_register_physical_memory(s->base, memsize, iomemtype);
+ cpu_register_physical_memory(base, memsize, iomemtype);
+
+ mpu->drq = s->dma->drq;
+
+ return s->dma;
+}
+
+static void omap_dma_interrupts_4_update(struct omap_dma_s *s)
+{
+ struct omap_dma_channel_s *ch = s->ch;
+ uint32_t bmp, bit;
+
+ for (bmp = 0, bit = 1; bit; ch ++, bit <<= 1)
+ if (ch->status) {
+ bmp |= bit;
+ ch->cstatus |= ch->status;
+ ch->status = 0;
+ }
+ if ((s->irqstat[0] |= s->irqen[0] & bmp))
+ qemu_irq_raise(s->irq[0]);
+ if ((s->irqstat[1] |= s->irqen[1] & bmp))
+ qemu_irq_raise(s->irq[1]);
+ if ((s->irqstat[2] |= s->irqen[2] & bmp))
+ qemu_irq_raise(s->irq[2]);
+ if ((s->irqstat[3] |= s->irqen[3] & bmp))
+ qemu_irq_raise(s->irq[3]);
+}
+
+static uint32_t omap_dma4_read(void *opaque, target_phys_addr_t addr)
+{
+ struct omap_dma_s *s = (struct omap_dma_s *) opaque;
+ int irqn = 0, chnum;
+ struct omap_dma_channel_s *ch;
+
+ switch (addr) {
+ case 0x00: /* DMA4_REVISION */
+ return 0x40;
+
+ case 0x14: /* DMA4_IRQSTATUS_L3 */
+ irqn ++;
+ case 0x10: /* DMA4_IRQSTATUS_L2 */
+ irqn ++;
+ case 0x0c: /* DMA4_IRQSTATUS_L1 */
+ irqn ++;
+ case 0x08: /* DMA4_IRQSTATUS_L0 */
+ return s->irqstat[irqn];
+
+ case 0x24: /* DMA4_IRQENABLE_L3 */
+ irqn ++;
+ case 0x20: /* DMA4_IRQENABLE_L2 */
+ irqn ++;
+ case 0x1c: /* DMA4_IRQENABLE_L1 */
+ irqn ++;
+ case 0x18: /* DMA4_IRQENABLE_L0 */
+ return s->irqen[irqn];
+
+ case 0x28: /* DMA4_SYSSTATUS */
+ return 1; /* RESETDONE */
+
+ case 0x2c: /* DMA4_OCP_SYSCONFIG */
+ return s->ocp;
+
+ case 0x64: /* DMA4_CAPS_0 */
+ return s->caps[0];
+ case 0x6c: /* DMA4_CAPS_2 */
+ return s->caps[2];
+ case 0x70: /* DMA4_CAPS_3 */
+ return s->caps[3];
+ case 0x74: /* DMA4_CAPS_4 */
+ return s->caps[4];
+
+ case 0x78: /* DMA4_GCR */
+ return s->gcr;
+
+ case 0x80 ... 0xfff:
+ addr -= 0x80;
+ chnum = addr / 0x60;
+ ch = s->ch + chnum;
+ addr -= chnum * 0x60;
+ break;
+
+ default:
+ OMAP_BAD_REG(addr);
+ return 0;
+ }
- return s;
+ /* Per-channel registers */
+ switch (addr) {
+ case 0x00: /* DMA4_CCR */
+ return (ch->buf_disable << 25) |
+ (ch->src_sync << 24) |
+ (ch->prefetch << 23) |
+ ((ch->sync & 0x60) << 14) |
+ (ch->bs << 18) |
+ (ch->transparent_copy << 17) |
+ (ch->constant_fill << 16) |
+ (ch->mode[1] << 14) |
+ (ch->mode[0] << 12) |
+ (0 << 10) | (0 << 9) |
+ (ch->suspend << 8) |
+ (ch->enable << 7) |
+ (ch->priority << 6) |
+ (ch->fs << 5) | (ch->sync & 0x1f);
+
+ case 0x04: /* DMA4_CLNK_CTRL */
+ return (ch->link_enabled << 15) | ch->link_next_ch;
+
+ case 0x08: /* DMA4_CICR */
+ return ch->interrupts;
+
+ case 0x0c: /* DMA4_CSR */
+ return ch->cstatus;
+
+ case 0x10: /* DMA4_CSDP */
+ return (ch->endian[0] << 21) |
+ (ch->endian_lock[0] << 20) |
+ (ch->endian[1] << 19) |
+ (ch->endian_lock[1] << 18) |
+ (ch->write_mode << 16) |
+ (ch->burst[1] << 14) |
+ (ch->pack[1] << 13) |
+ (ch->translate[1] << 9) |
+ (ch->burst[0] << 7) |
+ (ch->pack[0] << 6) |
+ (ch->translate[0] << 2) |
+ (ch->data_type >> 1);
+
+ case 0x14: /* DMA4_CEN */
+ return ch->elements;
+
+ case 0x18: /* DMA4_CFN */
+ return ch->frames;
+
+ case 0x1c: /* DMA4_CSSA */
+ return ch->addr[0];
+
+ case 0x20: /* DMA4_CDSA */
+ return ch->addr[1];
+
+ case 0x24: /* DMA4_CSEI */
+ return ch->element_index[0];
+
+ case 0x28: /* DMA4_CSFI */
+ return ch->frame_index[0];
+
+ case 0x2c: /* DMA4_CDEI */
+ return ch->element_index[1];
+
+ case 0x30: /* DMA4_CDFI */
+ return ch->frame_index[1];
+
+ case 0x34: /* DMA4_CSAC */
+ return ch->active_set.src & 0xffff;
+
+ case 0x38: /* DMA4_CDAC */
+ return ch->active_set.dest & 0xffff;
+
+ case 0x3c: /* DMA4_CCEN */
+ return ch->active_set.element;
+
+ case 0x40: /* DMA4_CCFN */
+ return ch->active_set.frame;
+
+ case 0x44: /* DMA4_COLOR */
+ /* XXX only in sDMA */
+ return ch->color;
+
+ default:
+ OMAP_BAD_REG(addr);
+ return 0;
+ }
+}
+
+static void omap_dma4_write(void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ struct omap_dma_s *s = (struct omap_dma_s *) opaque;
+ int chnum, irqn = 0;
+ struct omap_dma_channel_s *ch;
+
+ switch (addr) {
+ case 0x14: /* DMA4_IRQSTATUS_L3 */
+ irqn ++;
+ case 0x10: /* DMA4_IRQSTATUS_L2 */
+ irqn ++;
+ case 0x0c: /* DMA4_IRQSTATUS_L1 */
+ irqn ++;
+ case 0x08: /* DMA4_IRQSTATUS_L0 */
+ s->irqstat[irqn] &= ~value;
+ if (!s->irqstat[irqn])
+ qemu_irq_lower(s->irq[irqn]);
+ return;
+
+ case 0x24: /* DMA4_IRQENABLE_L3 */
+ irqn ++;
+ case 0x20: /* DMA4_IRQENABLE_L2 */
+ irqn ++;
+ case 0x1c: /* DMA4_IRQENABLE_L1 */
+ irqn ++;
+ case 0x18: /* DMA4_IRQENABLE_L0 */
+ s->irqen[irqn] = value;
+ return;
+
+ case 0x2c: /* DMA4_OCP_SYSCONFIG */
+ if (value & 2) /* SOFTRESET */
+ omap_dma_reset(s->dma);
+ s->ocp = value & 0x3321;
+ if (((s->ocp >> 12) & 3) == 3) /* MIDLEMODE */
+ fprintf(stderr, "%s: invalid DMA power mode\n", __FUNCTION__);
+ return;
+
+ case 0x78: /* DMA4_GCR */
+ s->gcr = value & 0x00ff00ff;
+ if ((value & 0xff) == 0x00) /* MAX_CHANNEL_FIFO_DEPTH */
+ fprintf(stderr, "%s: wrong FIFO depth in GCR\n", __FUNCTION__);
+ return;
+
+ case 0x80 ... 0xfff:
+ addr -= 0x80;
+ chnum = addr / 0x60;
+ ch = s->ch + chnum;
+ addr -= chnum * 0x60;
+ break;
+
+ case 0x00: /* DMA4_REVISION */
+ case 0x28: /* DMA4_SYSSTATUS */
+ case 0x64: /* DMA4_CAPS_0 */
+ case 0x6c: /* DMA4_CAPS_2 */
+ case 0x70: /* DMA4_CAPS_3 */
+ case 0x74: /* DMA4_CAPS_4 */
+ OMAP_RO_REG(addr);
+ return;
+
+ default:
+ OMAP_BAD_REG(addr);
+ return;
+ }
+
+ /* Per-channel registers */
+ switch (addr) {
+ case 0x00: /* DMA4_CCR */
+ ch->buf_disable = (value >> 25) & 1;
+ ch->src_sync = (value >> 24) & 1; /* XXX For CamDMA must be 1 */
+ if (ch->buf_disable && !ch->src_sync)
+ fprintf(stderr, "%s: Buffering disable is not allowed in "
+ "destination synchronised mode\n", __FUNCTION__);
+ ch->prefetch = (value >> 23) & 1;
+ ch->bs = (value >> 18) & 1;
+ ch->transparent_copy = (value >> 17) & 1;
+ ch->constant_fill = (value >> 16) & 1;
+ ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14);
+ ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12);
+ ch->suspend = (value & 0x0100) >> 8;
+ ch->priority = (value & 0x0040) >> 6;
+ ch->fs = (value & 0x0020) >> 5;
+ if (ch->fs && ch->bs && ch->mode[0] && ch->mode[1])
+ fprintf(stderr, "%s: For a packet transfer at least one port "
+ "must be constant-addressed\n", __FUNCTION__);
+ ch->sync = (value & 0x001f) | ((value >> 14) & 0x0060);
+ /* XXX must be 0x01 for CamDMA */
+
+ if (value & 0x0080)
+ omap_dma_enable_channel(s, ch);
+ else
+ omap_dma_disable_channel(s, ch);
+
+ break;
+
+ case 0x04: /* DMA4_CLNK_CTRL */
+ ch->link_enabled = (value >> 15) & 0x1;
+ ch->link_next_ch = value & 0x1f;
+ break;
+
+ case 0x08: /* DMA4_CICR */
+ ch->interrupts = value & 0x09be;
+ break;
+
+ case 0x0c: /* DMA4_CSR */
+ ch->cstatus &= ~value;
+ break;
+
+ case 0x10: /* DMA4_CSDP */
+ ch->endian[0] =(value >> 21) & 1;
+ ch->endian_lock[0] =(value >> 20) & 1;
+ ch->endian[1] =(value >> 19) & 1;
+ ch->endian_lock[1] =(value >> 18) & 1;
+ if (ch->endian[0] != ch->endian[1])
+ fprintf(stderr, "%s: DMA endiannes conversion enable attempt\n",
+ __FUNCTION__);
+ ch->write_mode = (value >> 16) & 3;
+ ch->burst[1] = (value & 0xc000) >> 14;
+ ch->pack[1] = (value & 0x2000) >> 13;
+ ch->translate[1] = (value & 0x1e00) >> 9;
+ ch->burst[0] = (value & 0x0180) >> 7;
+ ch->pack[0] = (value & 0x0040) >> 6;
+ ch->translate[0] = (value & 0x003c) >> 2;
+ if (ch->translate[0] | ch->translate[1])
+ fprintf(stderr, "%s: bad MReqAddressTranslate sideband signal\n",
+ __FUNCTION__);
+ ch->data_type = 1 << (value & 3);
+ if ((value & 3) == 3)
+ printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
+ break;
+
+ case 0x14: /* DMA4_CEN */
+ ch->set_update = 1;
+ ch->elements = value & 0xffffff;
+ break;
+
+ case 0x18: /* DMA4_CFN */
+ ch->frames = value & 0xffff;
+ ch->set_update = 1;
+ break;
+
+ case 0x1c: /* DMA4_CSSA */
+ ch->addr[0] = (target_phys_addr_t) (uint32_t) value;
+ ch->set_update = 1;
+ break;
+
+ case 0x20: /* DMA4_CDSA */
+ ch->addr[1] = (target_phys_addr_t) (uint32_t) value;
+ ch->set_update = 1;
+ break;
+
+ case 0x24: /* DMA4_CSEI */
+ ch->element_index[0] = (int16_t) value;
+ ch->set_update = 1;
+ break;
+
+ case 0x28: /* DMA4_CSFI */
+ ch->frame_index[0] = (int32_t) value;
+ ch->set_update = 1;
+ break;
+
+ case 0x2c: /* DMA4_CDEI */
+ ch->element_index[1] = (int16_t) value;
+ ch->set_update = 1;
+ break;
+
+ case 0x30: /* DMA4_CDFI */
+ ch->frame_index[1] = (int32_t) value;
+ ch->set_update = 1;
+ break;
+
+ case 0x44: /* DMA4_COLOR */
+ /* XXX only in sDMA */
+ ch->color = value;
+ break;
+
+ case 0x34: /* DMA4_CSAC */
+ case 0x38: /* DMA4_CDAC */
+ case 0x3c: /* DMA4_CCEN */
+ case 0x40: /* DMA4_CCFN */
+ OMAP_RO_REG(addr);
+ break;
+
+ default:
+ OMAP_BAD_REG(addr);
+ }
}
-struct omap_dma_lcd_channel_s *omap_dma_get_lcdch(struct omap_dma_s *s)
+static CPUReadMemoryFunc * const omap_dma4_readfn[] = {
+ omap_badwidth_read16,
+ omap_dma4_read,
+ omap_dma4_read,
+};
+
+static CPUWriteMemoryFunc * const omap_dma4_writefn[] = {
+ omap_badwidth_write16,
+ omap_dma4_write,
+ omap_dma4_write,
+};
+
+struct soc_dma_s *omap_dma4_init(target_phys_addr_t base, qemu_irq *irqs,
+ struct omap_mpu_state_s *mpu, int fifo,
+ int chans, omap_clk iclk, omap_clk fclk)
{
+ int iomemtype, i;
+ struct omap_dma_s *s = (struct omap_dma_s *)
+ qemu_mallocz(sizeof(struct omap_dma_s));
+
+ s->model = omap_dma_4;
+ s->chans = chans;
+ s->mpu = mpu;
+ s->clk = fclk;
+
+ s->dma = soc_dma_init(s->chans);
+ s->dma->freq = omap_clk_getrate(fclk);
+ s->dma->transfer_fn = omap_dma_transfer_generic;
+ s->dma->setup_fn = omap_dma_transfer_setup;
+ s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 64);
+ s->dma->opaque = s;
+ for (i = 0; i < s->chans; i ++) {
+ s->ch[i].dma = &s->dma->ch[i];
+ s->dma->ch[i].opaque = &s->ch[i];
+ }
+
+ memcpy(&s->irq, irqs, sizeof(s->irq));
+ s->intr_update = omap_dma_interrupts_4_update;
+
+ omap_dma_setcaps(s);
+ omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]);
+ omap_dma_reset(s->dma);
+ omap_dma_clk_update(s, 0, !!s->dma->freq);
+
+ iomemtype = cpu_register_io_memory(omap_dma4_readfn,
+ omap_dma4_writefn, s);
+ cpu_register_physical_memory(base, 0x1000, iomemtype);
+
+ mpu->drq = s->dma->drq;
+
+ return s->dma;
+}
+
+struct omap_dma_lcd_channel_s *omap_dma_get_lcdch(struct soc_dma_s *dma)
+{
+ struct omap_dma_s *s = dma->opaque;
+
return &s->lcd_ch;
}
projects / mirror_qemu.git / blobdiff