root / hw / omap_dma.c @ fad6cb1a
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/*
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|---|---|
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* TI OMAP DMA gigacell.
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*
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* Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org>
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* Copyright (C) 2007-2008 Lauro Ramos Venancio <lauro.venancio@indt.org.br>
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*
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* This program is free software; you can redistribute it and/or
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* 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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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "qemu-common.h" |
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#include "qemu-timer.h" |
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#include "omap.h" |
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#include "irq.h" |
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#include "soc_dma.h" |
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struct omap_dma_channel_s {
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/* transfer data */
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int burst[2]; |
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int pack[2]; |
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int endian[2]; |
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int endian_lock[2]; |
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int translate[2]; |
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enum omap_dma_port port[2]; |
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target_phys_addr_t addr[2];
|
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omap_dma_addressing_t mode[2];
|
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uint32_t elements; |
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uint16_t frames; |
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int32_t frame_index[2];
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int16_t element_index[2];
|
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int data_type;
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|
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/* transfer type */
|
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int transparent_copy;
|
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int constant_fill;
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uint32_t color; |
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int prefetch;
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|
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/* auto init and linked channel data */
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int end_prog;
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int repeat;
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int auto_init;
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int link_enabled;
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int link_next_ch;
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|
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/* interruption data */
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int interrupts;
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int status;
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int cstatus;
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|
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/* state data */
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int active;
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int enable;
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int sync;
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int src_sync;
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int pending_request;
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int waiting_end_prog;
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uint16_t cpc; |
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int set_update;
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|
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/* sync type */
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int fs;
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int bs;
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|
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/* compatibility */
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int omap_3_1_compatible_disable;
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|
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qemu_irq irq; |
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struct omap_dma_channel_s *sibling;
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|
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struct omap_dma_reg_set_s {
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target_phys_addr_t src, dest; |
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int frame;
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int element;
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int pck_element;
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int frame_delta[2]; |
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int elem_delta[2]; |
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int frames;
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int elements;
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int pck_elements;
|
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} active_set; |
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|
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struct soc_dma_ch_s *dma;
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|
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/* unused parameters */
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int write_mode;
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int priority;
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int interleave_disabled;
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int type;
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int suspend;
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int buf_disable;
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}; |
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|
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struct omap_dma_s {
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struct soc_dma_s *dma;
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|
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struct omap_mpu_state_s *mpu;
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omap_clk clk; |
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qemu_irq irq[4];
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void (*intr_update)(struct omap_dma_s *s); |
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enum omap_dma_model model;
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int omap_3_1_mapping_disabled;
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|
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uint32_t gcr; |
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uint32_t ocp; |
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uint32_t caps[5];
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uint32_t irqen[4];
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uint32_t irqstat[4];
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int chans;
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struct omap_dma_channel_s ch[32]; |
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struct omap_dma_lcd_channel_s lcd_ch;
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}; |
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/* Interrupts */
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#define TIMEOUT_INTR (1 << 0) |
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#define EVENT_DROP_INTR (1 << 1) |
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#define HALF_FRAME_INTR (1 << 2) |
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#define END_FRAME_INTR (1 << 3) |
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#define LAST_FRAME_INTR (1 << 4) |
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#define END_BLOCK_INTR (1 << 5) |
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#define SYNC (1 << 6) |
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#define END_PKT_INTR (1 << 7) |
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#define TRANS_ERR_INTR (1 << 8) |
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#define MISALIGN_INTR (1 << 11) |
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|
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static inline void omap_dma_interrupts_update(struct omap_dma_s *s) |
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{
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return s->intr_update(s);
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} |
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|
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static void omap_dma_channel_load(struct omap_dma_channel_s *ch) |
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{
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struct omap_dma_reg_set_s *a = &ch->active_set;
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int i, normal;
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int omap_3_1 = !ch->omap_3_1_compatible_disable;
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/*
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* TODO: verify address ranges and alignment
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* TODO: port endianness
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*/
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a->src = ch->addr[0];
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a->dest = ch->addr[1];
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a->frames = ch->frames; |
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a->elements = ch->elements; |
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a->pck_elements = ch->frame_index[!ch->src_sync]; |
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a->frame = 0;
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a->element = 0;
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a->pck_element = 0;
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if (unlikely(!ch->elements || !ch->frames)) {
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printf("%s: bad DMA request\n", __FUNCTION__);
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return;
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} |
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for (i = 0; i < 2; i ++) |
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switch (ch->mode[i]) {
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case constant:
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a->elem_delta[i] = 0;
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a->frame_delta[i] = 0;
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break;
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case post_incremented:
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a->elem_delta[i] = ch->data_type; |
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a->frame_delta[i] = 0;
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break;
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case single_index:
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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] = 0;
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break;
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case double_index:
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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] -
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ch->element_index[omap_3_1 ? 0 : i];
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break;
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default:
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break;
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} |
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|
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normal = !ch->transparent_copy && !ch->constant_fill && |
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/* FIFO is big-endian so either (ch->endian[n] == 1) OR
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* (ch->endian_lock[n] == 1) mean no endianism conversion. */
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(ch->endian[0] | ch->endian_lock[0]) == |
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(ch->endian[1] | ch->endian_lock[1]); |
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for (i = 0; i < 2; i ++) { |
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/* TODO: for a->frame_delta[i] > 0 still use the fast path, just
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* limit min_elems in omap_dma_transfer_setup to the nearest frame
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* end. */
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if (!a->elem_delta[i] && normal &&
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(a->frames == 1 || !a->frame_delta[i]))
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ch->dma->type[i] = soc_dma_access_const; |
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else if (a->elem_delta[i] == ch->data_type && normal && |
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(a->frames == 1 || !a->frame_delta[i]))
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ch->dma->type[i] = soc_dma_access_linear; |
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else
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ch->dma->type[i] = soc_dma_access_other; |
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ch->dma->vaddr[i] = ch->addr[i]; |
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} |
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soc_dma_ch_update(ch->dma); |
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} |
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static void omap_dma_activate_channel(struct omap_dma_s *s, |
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struct omap_dma_channel_s *ch)
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{
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if (!ch->active) {
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if (ch->set_update) {
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/* It's not clear when the active set is supposed to be
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* loaded from registers. We're already loading it when the
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* channel is enabled, and for some guests this is not enough
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* but that may be also because of a race condition (no
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* delays in qemu) in the guest code, which we're just
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* working around here. */
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omap_dma_channel_load(ch); |
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ch->set_update = 0;
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} |
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ch->active = 1;
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soc_dma_set_request(ch->dma, 1);
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if (ch->sync)
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ch->status |= SYNC; |
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} |
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} |
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static void omap_dma_deactivate_channel(struct omap_dma_s *s, |
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struct omap_dma_channel_s *ch)
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{
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/* Update cpc */
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ch->cpc = ch->active_set.dest & 0xffff;
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|
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if (ch->pending_request && !ch->waiting_end_prog && ch->enable) {
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/* Don't deactivate the channel */
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ch->pending_request = 0;
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return;
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} |
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|
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/* Don't deactive the channel if it is synchronized and the DMA request is
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active */
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if (ch->sync && ch->enable && (s->dma->drqbmp & (1 << ch->sync))) |
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return;
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|
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if (ch->active) {
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ch->active = 0;
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ch->status &= ~SYNC; |
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soc_dma_set_request(ch->dma, 0);
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} |
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} |
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|
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static void omap_dma_enable_channel(struct omap_dma_s *s, |
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struct omap_dma_channel_s *ch)
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{
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if (!ch->enable) {
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ch->enable = 1;
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ch->waiting_end_prog = 0;
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omap_dma_channel_load(ch); |
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/* TODO: theoretically if ch->sync && ch->prefetch &&
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* !s->dma->drqbmp[ch->sync], we should also activate and fetch
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* from source and then stall until signalled. */
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if ((!ch->sync) || (s->dma->drqbmp & (1 << ch->sync))) |
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omap_dma_activate_channel(s, ch); |
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} |
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} |
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|
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static void omap_dma_disable_channel(struct omap_dma_s *s, |
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struct omap_dma_channel_s *ch)
|
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{
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if (ch->enable) {
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ch->enable = 0;
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/* Discard any pending request */
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ch->pending_request = 0;
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omap_dma_deactivate_channel(s, ch); |
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} |
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} |
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|
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static void omap_dma_channel_end_prog(struct omap_dma_s *s, |
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struct omap_dma_channel_s *ch)
|
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{
|
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if (ch->waiting_end_prog) {
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ch->waiting_end_prog = 0;
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if (!ch->sync || ch->pending_request) {
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ch->pending_request = 0;
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omap_dma_activate_channel(s, ch); |
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} |
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} |
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} |
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|
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static void omap_dma_interrupts_3_1_update(struct omap_dma_s *s) |
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{
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struct omap_dma_channel_s *ch = s->ch;
|
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|
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/* First three interrupts are shared between two channels each. */
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if (ch[0].status | ch[6].status) |
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qemu_irq_raise(ch[0].irq);
|
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if (ch[1].status | ch[7].status) |
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qemu_irq_raise(ch[1].irq);
|
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if (ch[2].status | ch[8].status) |
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qemu_irq_raise(ch[2].irq);
|
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if (ch[3].status) |
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qemu_irq_raise(ch[3].irq);
|
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if (ch[4].status) |
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qemu_irq_raise(ch[4].irq);
|
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if (ch[5].status) |
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qemu_irq_raise(ch[5].irq);
|
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} |
| 317 |
|
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static void omap_dma_interrupts_3_2_update(struct omap_dma_s *s) |
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{
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struct omap_dma_channel_s *ch = s->ch;
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int i;
|
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|
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for (i = s->chans; i; ch ++, i --)
|
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if (ch->status)
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qemu_irq_raise(ch->irq); |
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} |
| 327 |
|
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static void omap_dma_enable_3_1_mapping(struct omap_dma_s *s) |
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{
|
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s->omap_3_1_mapping_disabled = 0;
|
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s->chans = 9;
|
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s->intr_update = omap_dma_interrupts_3_1_update; |
| 333 |
} |
| 334 |
|
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static void omap_dma_disable_3_1_mapping(struct omap_dma_s *s) |
| 336 |
{
|
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s->omap_3_1_mapping_disabled = 1;
|
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s->chans = 16;
|
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s->intr_update = omap_dma_interrupts_3_2_update; |
| 340 |
} |
| 341 |
|
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static void omap_dma_process_request(struct omap_dma_s *s, int request) |
| 343 |
{
|
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int channel;
|
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int drop_event = 0; |
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struct omap_dma_channel_s *ch = s->ch;
|
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|
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for (channel = 0; channel < s->chans; channel ++, ch ++) { |
| 349 |
if (ch->enable && ch->sync == request) {
|
| 350 |
if (!ch->active)
|
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omap_dma_activate_channel(s, ch); |
| 352 |
else if (!ch->pending_request) |
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ch->pending_request = 1;
|
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else {
|
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/* Request collision */
|
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/* Second request received while processing other request */
|
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ch->status |= EVENT_DROP_INTR; |
| 358 |
drop_event = 1;
|
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} |
| 360 |
} |
| 361 |
} |
| 362 |
|
| 363 |
if (drop_event)
|
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omap_dma_interrupts_update(s); |
| 365 |
} |
| 366 |
|
| 367 |
static void omap_dma_transfer_generic(struct soc_dma_ch_s *dma) |
| 368 |
{
|
| 369 |
uint8_t value[4];
|
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struct omap_dma_channel_s *ch = dma->opaque;
|
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struct omap_dma_reg_set_s *a = &ch->active_set;
|
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int bytes = dma->bytes;
|
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#ifdef MULTI_REQ
|
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uint16_t status = ch->status; |
| 375 |
#endif
|
| 376 |
|
| 377 |
do {
|
| 378 |
/* Transfer a single element */
|
| 379 |
/* FIXME: check the endianness */
|
| 380 |
if (!ch->constant_fill)
|
| 381 |
cpu_physical_memory_read(a->src, value, ch->data_type); |
| 382 |
else
|
| 383 |
*(uint32_t *) value = ch->color; |
| 384 |
|
| 385 |
if (!ch->transparent_copy || *(uint32_t *) value != ch->color)
|
| 386 |
cpu_physical_memory_write(a->dest, value, ch->data_type); |
| 387 |
|
| 388 |
a->src += a->elem_delta[0];
|
| 389 |
a->dest += a->elem_delta[1];
|
| 390 |
a->element ++; |
| 391 |
|
| 392 |
#ifndef MULTI_REQ
|
| 393 |
if (a->element == a->elements) {
|
| 394 |
/* End of Frame */
|
| 395 |
a->element = 0;
|
| 396 |
a->src += a->frame_delta[0];
|
| 397 |
a->dest += a->frame_delta[1];
|
| 398 |
a->frame ++; |
| 399 |
|
| 400 |
/* If the channel is async, update cpc */
|
| 401 |
if (!ch->sync)
|
| 402 |
ch->cpc = a->dest & 0xffff;
|
| 403 |
} |
| 404 |
} while ((bytes -= ch->data_type));
|
| 405 |
#else
|
| 406 |
/* If the channel is element synchronized, deactivate it */
|
| 407 |
if (ch->sync && !ch->fs && !ch->bs)
|
| 408 |
omap_dma_deactivate_channel(s, ch); |
| 409 |
|
| 410 |
/* If it is the last frame, set the LAST_FRAME interrupt */
|
| 411 |
if (a->element == 1 && a->frame == a->frames - 1) |
| 412 |
if (ch->interrupts & LAST_FRAME_INTR)
|
| 413 |
ch->status |= LAST_FRAME_INTR; |
| 414 |
|
| 415 |
/* If the half of the frame was reached, set the HALF_FRAME
|
| 416 |
interrupt */
|
| 417 |
if (a->element == (a->elements >> 1)) |
| 418 |
if (ch->interrupts & HALF_FRAME_INTR)
|
| 419 |
ch->status |= HALF_FRAME_INTR; |
| 420 |
|
| 421 |
if (ch->fs && ch->bs) {
|
| 422 |
a->pck_element ++; |
| 423 |
/* Check if a full packet has beed transferred. */
|
| 424 |
if (a->pck_element == a->pck_elements) {
|
| 425 |
a->pck_element = 0;
|
| 426 |
|
| 427 |
/* Set the END_PKT interrupt */
|
| 428 |
if ((ch->interrupts & END_PKT_INTR) && !ch->src_sync)
|
| 429 |
ch->status |= END_PKT_INTR; |
| 430 |
|
| 431 |
/* If the channel is packet-synchronized, deactivate it */
|
| 432 |
if (ch->sync)
|
| 433 |
omap_dma_deactivate_channel(s, ch); |
| 434 |
} |
| 435 |
} |
| 436 |
|
| 437 |
if (a->element == a->elements) {
|
| 438 |
/* End of Frame */
|
| 439 |
a->element = 0;
|
| 440 |
a->src += a->frame_delta[0];
|
| 441 |
a->dest += a->frame_delta[1];
|
| 442 |
a->frame ++; |
| 443 |
|
| 444 |
/* If the channel is frame synchronized, deactivate it */
|
| 445 |
if (ch->sync && ch->fs && !ch->bs)
|
| 446 |
omap_dma_deactivate_channel(s, ch); |
| 447 |
|
| 448 |
/* If the channel is async, update cpc */
|
| 449 |
if (!ch->sync)
|
| 450 |
ch->cpc = a->dest & 0xffff;
|
| 451 |
|
| 452 |
/* Set the END_FRAME interrupt */
|
| 453 |
if (ch->interrupts & END_FRAME_INTR)
|
| 454 |
ch->status |= END_FRAME_INTR; |
| 455 |
|
| 456 |
if (a->frame == a->frames) {
|
| 457 |
/* End of Block */
|
| 458 |
/* Disable the channel */
|
| 459 |
|
| 460 |
if (ch->omap_3_1_compatible_disable) {
|
| 461 |
omap_dma_disable_channel(s, ch); |
| 462 |
if (ch->link_enabled)
|
| 463 |
omap_dma_enable_channel(s, |
| 464 |
&s->ch[ch->link_next_ch]); |
| 465 |
} else {
|
| 466 |
if (!ch->auto_init)
|
| 467 |
omap_dma_disable_channel(s, ch); |
| 468 |
else if (ch->repeat || ch->end_prog) |
| 469 |
omap_dma_channel_load(ch); |
| 470 |
else {
|
| 471 |
ch->waiting_end_prog = 1;
|
| 472 |
omap_dma_deactivate_channel(s, ch); |
| 473 |
} |
| 474 |
} |
| 475 |
|
| 476 |
if (ch->interrupts & END_BLOCK_INTR)
|
| 477 |
ch->status |= END_BLOCK_INTR; |
| 478 |
} |
| 479 |
} |
| 480 |
} while (status == ch->status && ch->active);
|
| 481 |
|
| 482 |
omap_dma_interrupts_update(s); |
| 483 |
#endif
|
| 484 |
} |
| 485 |
|
| 486 |
enum {
|
| 487 |
omap_dma_intr_element_sync, |
| 488 |
omap_dma_intr_last_frame, |
| 489 |
omap_dma_intr_half_frame, |
| 490 |
omap_dma_intr_frame, |
| 491 |
omap_dma_intr_frame_sync, |
| 492 |
omap_dma_intr_packet, |
| 493 |
omap_dma_intr_packet_sync, |
| 494 |
omap_dma_intr_block, |
| 495 |
__omap_dma_intr_last, |
| 496 |
}; |
| 497 |
|
| 498 |
static void omap_dma_transfer_setup(struct soc_dma_ch_s *dma) |
| 499 |
{
|
| 500 |
struct omap_dma_port_if_s *src_p, *dest_p;
|
| 501 |
struct omap_dma_reg_set_s *a;
|
| 502 |
struct omap_dma_channel_s *ch = dma->opaque;
|
| 503 |
struct omap_dma_s *s = dma->dma->opaque;
|
| 504 |
int frames, min_elems, elements[__omap_dma_intr_last];
|
| 505 |
|
| 506 |
a = &ch->active_set; |
| 507 |
|
| 508 |
src_p = &s->mpu->port[ch->port[0]];
|
| 509 |
dest_p = &s->mpu->port[ch->port[1]];
|
| 510 |
if ((!ch->constant_fill && !src_p->addr_valid(s->mpu, a->src)) ||
|
| 511 |
(!dest_p->addr_valid(s->mpu, a->dest))) {
|
| 512 |
#if 0
|
| 513 |
/* Bus time-out */
|
| 514 |
if (ch->interrupts & TIMEOUT_INTR)
|
| 515 |
ch->status |= TIMEOUT_INTR;
|
| 516 |
omap_dma_deactivate_channel(s, ch);
|
| 517 |
continue;
|
| 518 |
#endif
|
| 519 |
printf("%s: Bus time-out in DMA%i operation\n",
|
| 520 |
__FUNCTION__, dma->num); |
| 521 |
} |
| 522 |
|
| 523 |
min_elems = INT_MAX; |
| 524 |
|
| 525 |
/* Check all the conditions that terminate the transfer starting
|
| 526 |
* with those that can occur the soonest. */
|
| 527 |
#define INTR_CHECK(cond, id, nelements) \
|
| 528 |
if (cond) { \
|
| 529 |
elements[id] = nelements; \ |
| 530 |
if (elements[id] < min_elems) \
|
| 531 |
min_elems = elements[id]; \ |
| 532 |
} else \
|
| 533 |
elements[id] = INT_MAX; |
| 534 |
|
| 535 |
/* Elements */
|
| 536 |
INTR_CHECK( |
| 537 |
ch->sync && !ch->fs && !ch->bs, |
| 538 |
omap_dma_intr_element_sync, |
| 539 |
1)
|
| 540 |
|
| 541 |
/* Frames */
|
| 542 |
/* TODO: for transfers where entire frames can be read and written
|
| 543 |
* using memcpy() but a->frame_delta is non-zero, try to still do
|
| 544 |
* transfers using soc_dma but limit min_elems to a->elements - ...
|
| 545 |
* See also the TODO in omap_dma_channel_load. */
|
| 546 |
INTR_CHECK( |
| 547 |
(ch->interrupts & LAST_FRAME_INTR) && |
| 548 |
((a->frame < a->frames - 1) || !a->element),
|
| 549 |
omap_dma_intr_last_frame, |
| 550 |
(a->frames - a->frame - 2) * a->elements +
|
| 551 |
(a->elements - a->element + 1))
|
| 552 |
INTR_CHECK( |
| 553 |
ch->interrupts & HALF_FRAME_INTR, |
| 554 |
omap_dma_intr_half_frame, |
| 555 |
(a->elements >> 1) +
|
| 556 |
(a->element >= (a->elements >> 1) ? a->elements : 0) - |
| 557 |
a->element) |
| 558 |
INTR_CHECK( |
| 559 |
ch->sync && ch->fs && (ch->interrupts & END_FRAME_INTR), |
| 560 |
omap_dma_intr_frame, |
| 561 |
a->elements - a->element) |
| 562 |
INTR_CHECK( |
| 563 |
ch->sync && ch->fs && !ch->bs, |
| 564 |
omap_dma_intr_frame_sync, |
| 565 |
a->elements - a->element) |
| 566 |
|
| 567 |
/* Packets */
|
| 568 |
INTR_CHECK( |
| 569 |
ch->fs && ch->bs && |
| 570 |
(ch->interrupts & END_PKT_INTR) && !ch->src_sync, |
| 571 |
omap_dma_intr_packet, |
| 572 |
a->pck_elements - a->pck_element) |
| 573 |
INTR_CHECK( |
| 574 |
ch->fs && ch->bs && ch->sync, |
| 575 |
omap_dma_intr_packet_sync, |
| 576 |
a->pck_elements - a->pck_element) |
| 577 |
|
| 578 |
/* Blocks */
|
| 579 |
INTR_CHECK( |
| 580 |
1,
|
| 581 |
omap_dma_intr_block, |
| 582 |
(a->frames - a->frame - 1) * a->elements +
|
| 583 |
(a->elements - a->element)) |
| 584 |
|
| 585 |
dma->bytes = min_elems * ch->data_type; |
| 586 |
|
| 587 |
/* Set appropriate interrupts and/or deactivate channels */
|
| 588 |
|
| 589 |
#ifdef MULTI_REQ
|
| 590 |
/* TODO: should all of this only be done if dma->update, and otherwise
|
| 591 |
* inside omap_dma_transfer_generic below - check what's faster. */
|
| 592 |
if (dma->update) {
|
| 593 |
#endif
|
| 594 |
|
| 595 |
/* If the channel is element synchronized, deactivate it */
|
| 596 |
if (min_elems == elements[omap_dma_intr_element_sync])
|
| 597 |
omap_dma_deactivate_channel(s, ch); |
| 598 |
|
| 599 |
/* If it is the last frame, set the LAST_FRAME interrupt */
|
| 600 |
if (min_elems == elements[omap_dma_intr_last_frame])
|
| 601 |
ch->status |= LAST_FRAME_INTR; |
| 602 |
|
| 603 |
/* If exactly half of the frame was reached, set the HALF_FRAME
|
| 604 |
interrupt */
|
| 605 |
if (min_elems == elements[omap_dma_intr_half_frame])
|
| 606 |
ch->status |= HALF_FRAME_INTR; |
| 607 |
|
| 608 |
/* If a full packet has been transferred, set the END_PKT interrupt */
|
| 609 |
if (min_elems == elements[omap_dma_intr_packet])
|
| 610 |
ch->status |= END_PKT_INTR; |
| 611 |
|
| 612 |
/* If the channel is packet-synchronized, deactivate it */
|
| 613 |
if (min_elems == elements[omap_dma_intr_packet_sync])
|
| 614 |
omap_dma_deactivate_channel(s, ch); |
| 615 |
|
| 616 |
/* If the channel is frame synchronized, deactivate it */
|
| 617 |
if (min_elems == elements[omap_dma_intr_frame_sync])
|
| 618 |
omap_dma_deactivate_channel(s, ch); |
| 619 |
|
| 620 |
/* Set the END_FRAME interrupt */
|
| 621 |
if (min_elems == elements[omap_dma_intr_frame])
|
| 622 |
ch->status |= END_FRAME_INTR; |
| 623 |
|
| 624 |
if (min_elems == elements[omap_dma_intr_block]) {
|
| 625 |
/* End of Block */
|
| 626 |
/* Disable the channel */
|
| 627 |
|
| 628 |
if (ch->omap_3_1_compatible_disable) {
|
| 629 |
omap_dma_disable_channel(s, ch); |
| 630 |
if (ch->link_enabled)
|
| 631 |
omap_dma_enable_channel(s, &s->ch[ch->link_next_ch]); |
| 632 |
} else {
|
| 633 |
if (!ch->auto_init)
|
| 634 |
omap_dma_disable_channel(s, ch); |
| 635 |
else if (ch->repeat || ch->end_prog) |
| 636 |
omap_dma_channel_load(ch); |
| 637 |
else {
|
| 638 |
ch->waiting_end_prog = 1;
|
| 639 |
omap_dma_deactivate_channel(s, ch); |
| 640 |
} |
| 641 |
} |
| 642 |
|
| 643 |
if (ch->interrupts & END_BLOCK_INTR)
|
| 644 |
ch->status |= END_BLOCK_INTR; |
| 645 |
} |
| 646 |
|
| 647 |
/* Update packet number */
|
| 648 |
if (ch->fs && ch->bs) {
|
| 649 |
a->pck_element += min_elems; |
| 650 |
a->pck_element %= a->pck_elements; |
| 651 |
} |
| 652 |
|
| 653 |
/* TODO: check if we really need to update anything here or perhaps we
|
| 654 |
* can skip part of this. */
|
| 655 |
#ifndef MULTI_REQ
|
| 656 |
if (dma->update) {
|
| 657 |
#endif
|
| 658 |
a->element += min_elems; |
| 659 |
|
| 660 |
frames = a->element / a->elements; |
| 661 |
a->element = a->element % a->elements; |
| 662 |
a->frame += frames; |
| 663 |
a->src += min_elems * a->elem_delta[0] + frames * a->frame_delta[0]; |
| 664 |
a->dest += min_elems * a->elem_delta[1] + frames * a->frame_delta[1]; |
| 665 |
|
| 666 |
/* If the channel is async, update cpc */
|
| 667 |
if (!ch->sync && frames)
|
| 668 |
ch->cpc = a->dest & 0xffff;
|
| 669 |
|
| 670 |
/* TODO: if the destination port is IMIF or EMIFF, set the dirty
|
| 671 |
* bits on it. */
|
| 672 |
} |
| 673 |
|
| 674 |
omap_dma_interrupts_update(s); |
| 675 |
} |
| 676 |
|
| 677 |
void omap_dma_reset(struct soc_dma_s *dma) |
| 678 |
{
|
| 679 |
int i;
|
| 680 |
struct omap_dma_s *s = dma->opaque;
|
| 681 |
|
| 682 |
soc_dma_reset(s->dma); |
| 683 |
if (s->model < omap_dma_4)
|
| 684 |
s->gcr = 0x0004;
|
| 685 |
else
|
| 686 |
s->gcr = 0x00010010;
|
| 687 |
s->ocp = 0x00000000;
|
| 688 |
memset(&s->irqstat, 0, sizeof(s->irqstat)); |
| 689 |
memset(&s->irqen, 0, sizeof(s->irqen)); |
| 690 |
s->lcd_ch.src = emiff; |
| 691 |
s->lcd_ch.condition = 0;
|
| 692 |
s->lcd_ch.interrupts = 0;
|
| 693 |
s->lcd_ch.dual = 0;
|
| 694 |
if (s->model < omap_dma_4)
|
| 695 |
omap_dma_enable_3_1_mapping(s); |
| 696 |
for (i = 0; i < s->chans; i ++) { |
| 697 |
s->ch[i].suspend = 0;
|
| 698 |
s->ch[i].prefetch = 0;
|
| 699 |
s->ch[i].buf_disable = 0;
|
| 700 |
s->ch[i].src_sync = 0;
|
| 701 |
memset(&s->ch[i].burst, 0, sizeof(s->ch[i].burst)); |
| 702 |
memset(&s->ch[i].port, 0, sizeof(s->ch[i].port)); |
| 703 |
memset(&s->ch[i].mode, 0, sizeof(s->ch[i].mode)); |
| 704 |
memset(&s->ch[i].frame_index, 0, sizeof(s->ch[i].frame_index)); |
| 705 |
memset(&s->ch[i].element_index, 0, sizeof(s->ch[i].element_index)); |
| 706 |
memset(&s->ch[i].endian, 0, sizeof(s->ch[i].endian)); |
| 707 |
memset(&s->ch[i].endian_lock, 0, sizeof(s->ch[i].endian_lock)); |
| 708 |
memset(&s->ch[i].translate, 0, sizeof(s->ch[i].translate)); |
| 709 |
s->ch[i].write_mode = 0;
|
| 710 |
s->ch[i].data_type = 0;
|
| 711 |
s->ch[i].transparent_copy = 0;
|
| 712 |
s->ch[i].constant_fill = 0;
|
| 713 |
s->ch[i].color = 0x00000000;
|
| 714 |
s->ch[i].end_prog = 0;
|
| 715 |
s->ch[i].repeat = 0;
|
| 716 |
s->ch[i].auto_init = 0;
|
| 717 |
s->ch[i].link_enabled = 0;
|
| 718 |
if (s->model < omap_dma_4)
|
| 719 |
s->ch[i].interrupts = 0x0003;
|
| 720 |
else
|
| 721 |
s->ch[i].interrupts = 0x0000;
|
| 722 |
s->ch[i].status = 0;
|
| 723 |
s->ch[i].cstatus = 0;
|
| 724 |
s->ch[i].active = 0;
|
| 725 |
s->ch[i].enable = 0;
|
| 726 |
s->ch[i].sync = 0;
|
| 727 |
s->ch[i].pending_request = 0;
|
| 728 |
s->ch[i].waiting_end_prog = 0;
|
| 729 |
s->ch[i].cpc = 0x0000;
|
| 730 |
s->ch[i].fs = 0;
|
| 731 |
s->ch[i].bs = 0;
|
| 732 |
s->ch[i].omap_3_1_compatible_disable = 0;
|
| 733 |
memset(&s->ch[i].active_set, 0, sizeof(s->ch[i].active_set)); |
| 734 |
s->ch[i].priority = 0;
|
| 735 |
s->ch[i].interleave_disabled = 0;
|
| 736 |
s->ch[i].type = 0;
|
| 737 |
} |
| 738 |
} |
| 739 |
|
| 740 |
static int omap_dma_ch_reg_read(struct omap_dma_s *s, |
| 741 |
struct omap_dma_channel_s *ch, int reg, uint16_t *value) |
| 742 |
{
|
| 743 |
switch (reg) {
|
| 744 |
case 0x00: /* SYS_DMA_CSDP_CH0 */ |
| 745 |
*value = (ch->burst[1] << 14) | |
| 746 |
(ch->pack[1] << 13) | |
| 747 |
(ch->port[1] << 9) | |
| 748 |
(ch->burst[0] << 7) | |
| 749 |
(ch->pack[0] << 6) | |
| 750 |
(ch->port[0] << 2) | |
| 751 |
(ch->data_type >> 1);
|
| 752 |
break;
|
| 753 |
|
| 754 |
case 0x02: /* SYS_DMA_CCR_CH0 */ |
| 755 |
if (s->model <= omap_dma_3_1)
|
| 756 |
*value = 0 << 10; /* FIFO_FLUSH reads as 0 */ |
| 757 |
else
|
| 758 |
*value = ch->omap_3_1_compatible_disable << 10;
|
| 759 |
*value |= (ch->mode[1] << 14) | |
| 760 |
(ch->mode[0] << 12) | |
| 761 |
(ch->end_prog << 11) |
|
| 762 |
(ch->repeat << 9) |
|
| 763 |
(ch->auto_init << 8) |
|
| 764 |
(ch->enable << 7) |
|
| 765 |
(ch->priority << 6) |
|
| 766 |
(ch->fs << 5) | ch->sync;
|
| 767 |
break;
|
| 768 |
|
| 769 |
case 0x04: /* SYS_DMA_CICR_CH0 */ |
| 770 |
*value = ch->interrupts; |
| 771 |
break;
|
| 772 |
|
| 773 |
case 0x06: /* SYS_DMA_CSR_CH0 */ |
| 774 |
*value = ch->status; |
| 775 |
ch->status &= SYNC; |
| 776 |
if (!ch->omap_3_1_compatible_disable && ch->sibling) {
|
| 777 |
*value |= (ch->sibling->status & 0x3f) << 6; |
| 778 |
ch->sibling->status &= SYNC; |
| 779 |
} |
| 780 |
qemu_irq_lower(ch->irq); |
| 781 |
break;
|
| 782 |
|
| 783 |
case 0x08: /* SYS_DMA_CSSA_L_CH0 */ |
| 784 |
*value = ch->addr[0] & 0x0000ffff; |
| 785 |
break;
|
| 786 |
|
| 787 |
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */ |
| 788 |
*value = ch->addr[0] >> 16; |
| 789 |
break;
|
| 790 |
|
| 791 |
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */ |
| 792 |
*value = ch->addr[1] & 0x0000ffff; |
| 793 |
break;
|
| 794 |
|
| 795 |
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */ |
| 796 |
*value = ch->addr[1] >> 16; |
| 797 |
break;
|
| 798 |
|
| 799 |
case 0x10: /* SYS_DMA_CEN_CH0 */ |
| 800 |
*value = ch->elements; |
| 801 |
break;
|
| 802 |
|
| 803 |
case 0x12: /* SYS_DMA_CFN_CH0 */ |
| 804 |
*value = ch->frames; |
| 805 |
break;
|
| 806 |
|
| 807 |
case 0x14: /* SYS_DMA_CFI_CH0 */ |
| 808 |
*value = ch->frame_index[0];
|
| 809 |
break;
|
| 810 |
|
| 811 |
case 0x16: /* SYS_DMA_CEI_CH0 */ |
| 812 |
*value = ch->element_index[0];
|
| 813 |
break;
|
| 814 |
|
| 815 |
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */ |
| 816 |
if (ch->omap_3_1_compatible_disable)
|
| 817 |
*value = ch->active_set.src & 0xffff; /* CSAC */ |
| 818 |
else
|
| 819 |
*value = ch->cpc; |
| 820 |
break;
|
| 821 |
|
| 822 |
case 0x1a: /* DMA_CDAC */ |
| 823 |
*value = ch->active_set.dest & 0xffff; /* CDAC */ |
| 824 |
break;
|
| 825 |
|
| 826 |
case 0x1c: /* DMA_CDEI */ |
| 827 |
*value = ch->element_index[1];
|
| 828 |
break;
|
| 829 |
|
| 830 |
case 0x1e: /* DMA_CDFI */ |
| 831 |
*value = ch->frame_index[1];
|
| 832 |
break;
|
| 833 |
|
| 834 |
case 0x20: /* DMA_COLOR_L */ |
| 835 |
*value = ch->color & 0xffff;
|
| 836 |
break;
|
| 837 |
|
| 838 |
case 0x22: /* DMA_COLOR_U */ |
| 839 |
*value = ch->color >> 16;
|
| 840 |
break;
|
| 841 |
|
| 842 |
case 0x24: /* DMA_CCR2 */ |
| 843 |
*value = (ch->bs << 2) |
|
| 844 |
(ch->transparent_copy << 1) |
|
| 845 |
ch->constant_fill; |
| 846 |
break;
|
| 847 |
|
| 848 |
case 0x28: /* DMA_CLNK_CTRL */ |
| 849 |
*value = (ch->link_enabled << 15) |
|
| 850 |
(ch->link_next_ch & 0xf);
|
| 851 |
break;
|
| 852 |
|
| 853 |
case 0x2a: /* DMA_LCH_CTRL */ |
| 854 |
*value = (ch->interleave_disabled << 15) |
|
| 855 |
ch->type; |
| 856 |
break;
|
| 857 |
|
| 858 |
default:
|
| 859 |
return 1; |
| 860 |
} |
| 861 |
return 0; |
| 862 |
} |
| 863 |
|
| 864 |
static int omap_dma_ch_reg_write(struct omap_dma_s *s, |
| 865 |
struct omap_dma_channel_s *ch, int reg, uint16_t value) |
| 866 |
{
|
| 867 |
switch (reg) {
|
| 868 |
case 0x00: /* SYS_DMA_CSDP_CH0 */ |
| 869 |
ch->burst[1] = (value & 0xc000) >> 14; |
| 870 |
ch->pack[1] = (value & 0x2000) >> 13; |
| 871 |
ch->port[1] = (enum omap_dma_port) ((value & 0x1e00) >> 9); |
| 872 |
ch->burst[0] = (value & 0x0180) >> 7; |
| 873 |
ch->pack[0] = (value & 0x0040) >> 6; |
| 874 |
ch->port[0] = (enum omap_dma_port) ((value & 0x003c) >> 2); |
| 875 |
ch->data_type = 1 << (value & 3); |
| 876 |
if (ch->port[0] >= __omap_dma_port_last) |
| 877 |
printf("%s: invalid DMA port %i\n", __FUNCTION__,
|
| 878 |
ch->port[0]);
|
| 879 |
if (ch->port[1] >= __omap_dma_port_last) |
| 880 |
printf("%s: invalid DMA port %i\n", __FUNCTION__,
|
| 881 |
ch->port[1]);
|
| 882 |
if ((value & 3) == 3) |
| 883 |
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
|
| 884 |
break;
|
| 885 |
|
| 886 |
case 0x02: /* SYS_DMA_CCR_CH0 */ |
| 887 |
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14); |
| 888 |
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12); |
| 889 |
ch->end_prog = (value & 0x0800) >> 11; |
| 890 |
if (s->model >= omap_dma_3_2)
|
| 891 |
ch->omap_3_1_compatible_disable = (value >> 10) & 0x1; |
| 892 |
ch->repeat = (value & 0x0200) >> 9; |
| 893 |
ch->auto_init = (value & 0x0100) >> 8; |
| 894 |
ch->priority = (value & 0x0040) >> 6; |
| 895 |
ch->fs = (value & 0x0020) >> 5; |
| 896 |
ch->sync = value & 0x001f;
|
| 897 |
|
| 898 |
if (value & 0x0080) |
| 899 |
omap_dma_enable_channel(s, ch); |
| 900 |
else
|
| 901 |
omap_dma_disable_channel(s, ch); |
| 902 |
|
| 903 |
if (ch->end_prog)
|
| 904 |
omap_dma_channel_end_prog(s, ch); |
| 905 |
|
| 906 |
break;
|
| 907 |
|
| 908 |
case 0x04: /* SYS_DMA_CICR_CH0 */ |
| 909 |
ch->interrupts = value & 0x3f;
|
| 910 |
break;
|
| 911 |
|
| 912 |
case 0x06: /* SYS_DMA_CSR_CH0 */ |
| 913 |
OMAP_RO_REG((target_phys_addr_t) reg); |
| 914 |
break;
|
| 915 |
|
| 916 |
case 0x08: /* SYS_DMA_CSSA_L_CH0 */ |
| 917 |
ch->addr[0] &= 0xffff0000; |
| 918 |
ch->addr[0] |= value;
|
| 919 |
break;
|
| 920 |
|
| 921 |
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */ |
| 922 |
ch->addr[0] &= 0x0000ffff; |
| 923 |
ch->addr[0] |= (uint32_t) value << 16; |
| 924 |
break;
|
| 925 |
|
| 926 |
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */ |
| 927 |
ch->addr[1] &= 0xffff0000; |
| 928 |
ch->addr[1] |= value;
|
| 929 |
break;
|
| 930 |
|
| 931 |
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */ |
| 932 |
ch->addr[1] &= 0x0000ffff; |
| 933 |
ch->addr[1] |= (uint32_t) value << 16; |
| 934 |
break;
|
| 935 |
|
| 936 |
case 0x10: /* SYS_DMA_CEN_CH0 */ |
| 937 |
ch->elements = value; |
| 938 |
break;
|
| 939 |
|
| 940 |
case 0x12: /* SYS_DMA_CFN_CH0 */ |
| 941 |
ch->frames = value; |
| 942 |
break;
|
| 943 |
|
| 944 |
case 0x14: /* SYS_DMA_CFI_CH0 */ |
| 945 |
ch->frame_index[0] = (int16_t) value;
|
| 946 |
break;
|
| 947 |
|
| 948 |
case 0x16: /* SYS_DMA_CEI_CH0 */ |
| 949 |
ch->element_index[0] = (int16_t) value;
|
| 950 |
break;
|
| 951 |
|
| 952 |
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */ |
| 953 |
OMAP_RO_REG((target_phys_addr_t) reg); |
| 954 |
break;
|
| 955 |
|
| 956 |
case 0x1c: /* DMA_CDEI */ |
| 957 |
ch->element_index[1] = (int16_t) value;
|
| 958 |
break;
|
| 959 |
|
| 960 |
case 0x1e: /* DMA_CDFI */ |
| 961 |
ch->frame_index[1] = (int16_t) value;
|
| 962 |
break;
|
| 963 |
|
| 964 |
case 0x20: /* DMA_COLOR_L */ |
| 965 |
ch->color &= 0xffff0000;
|
| 966 |
ch->color |= value; |
| 967 |
break;
|
| 968 |
|
| 969 |
case 0x22: /* DMA_COLOR_U */ |
| 970 |
ch->color &= 0xffff;
|
| 971 |
ch->color |= value << 16;
|
| 972 |
break;
|
| 973 |
|
| 974 |
case 0x24: /* DMA_CCR2 */ |
| 975 |
ch->bs = (value >> 2) & 0x1; |
| 976 |
ch->transparent_copy = (value >> 1) & 0x1; |
| 977 |
ch->constant_fill = value & 0x1;
|
| 978 |
break;
|
| 979 |
|
| 980 |
case 0x28: /* DMA_CLNK_CTRL */ |
| 981 |
ch->link_enabled = (value >> 15) & 0x1; |
| 982 |
if (value & (1 << 14)) { /* Stop_Lnk */ |
| 983 |
ch->link_enabled = 0;
|
| 984 |
omap_dma_disable_channel(s, ch); |
| 985 |
} |
| 986 |
ch->link_next_ch = value & 0x1f;
|
| 987 |
break;
|
| 988 |
|
| 989 |
case 0x2a: /* DMA_LCH_CTRL */ |
| 990 |
ch->interleave_disabled = (value >> 15) & 0x1; |
| 991 |
ch->type = value & 0xf;
|
| 992 |
break;
|
| 993 |
|
| 994 |
default:
|
| 995 |
return 1; |
| 996 |
} |
| 997 |
return 0; |
| 998 |
} |
| 999 |
|
| 1000 |
static int omap_dma_3_2_lcd_write(struct omap_dma_lcd_channel_s *s, int offset, |
| 1001 |
uint16_t value) |
| 1002 |
{
|
| 1003 |
switch (offset) {
|
| 1004 |
case 0xbc0: /* DMA_LCD_CSDP */ |
| 1005 |
s->brust_f2 = (value >> 14) & 0x3; |
| 1006 |
s->pack_f2 = (value >> 13) & 0x1; |
| 1007 |
s->data_type_f2 = (1 << ((value >> 11) & 0x3)); |
| 1008 |
s->brust_f1 = (value >> 7) & 0x3; |
| 1009 |
s->pack_f1 = (value >> 6) & 0x1; |
| 1010 |
s->data_type_f1 = (1 << ((value >> 0) & 0x3)); |
| 1011 |
break;
|
| 1012 |
|
| 1013 |
case 0xbc2: /* DMA_LCD_CCR */ |
| 1014 |
s->mode_f2 = (value >> 14) & 0x3; |
| 1015 |
s->mode_f1 = (value >> 12) & 0x3; |
| 1016 |
s->end_prog = (value >> 11) & 0x1; |
| 1017 |
s->omap_3_1_compatible_disable = (value >> 10) & 0x1; |
| 1018 |
s->repeat = (value >> 9) & 0x1; |
| 1019 |
s->auto_init = (value >> 8) & 0x1; |
| 1020 |
s->running = (value >> 7) & 0x1; |
| 1021 |
s->priority = (value >> 6) & 0x1; |
| 1022 |
s->bs = (value >> 4) & 0x1; |
| 1023 |
break;
|
| 1024 |
|
| 1025 |
case 0xbc4: /* DMA_LCD_CTRL */ |
| 1026 |
s->dst = (value >> 8) & 0x1; |
| 1027 |
s->src = ((value >> 6) & 0x3) << 1; |
| 1028 |
s->condition = 0;
|
| 1029 |
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
|
| 1030 |
s->interrupts = (value >> 1) & 1; |
| 1031 |
s->dual = value & 1;
|
| 1032 |
break;
|
| 1033 |
|
| 1034 |
case 0xbc8: /* TOP_B1_L */ |
| 1035 |
s->src_f1_top &= 0xffff0000;
|
| 1036 |
s->src_f1_top |= 0x0000ffff & value;
|
| 1037 |
break;
|
| 1038 |
|
| 1039 |
case 0xbca: /* TOP_B1_U */ |
| 1040 |
s->src_f1_top &= 0x0000ffff;
|
| 1041 |
s->src_f1_top |= value << 16;
|
| 1042 |
break;
|
| 1043 |
|
| 1044 |
case 0xbcc: /* BOT_B1_L */ |
| 1045 |
s->src_f1_bottom &= 0xffff0000;
|
| 1046 |
s->src_f1_bottom |= 0x0000ffff & value;
|
| 1047 |
break;
|
| 1048 |
|
| 1049 |
case 0xbce: /* BOT_B1_U */ |
| 1050 |
s->src_f1_bottom &= 0x0000ffff;
|
| 1051 |
s->src_f1_bottom |= (uint32_t) value << 16;
|
| 1052 |
break;
|
| 1053 |
|
| 1054 |
case 0xbd0: /* TOP_B2_L */ |
| 1055 |
s->src_f2_top &= 0xffff0000;
|
| 1056 |
s->src_f2_top |= 0x0000ffff & value;
|
| 1057 |
break;
|
| 1058 |
|
| 1059 |
case 0xbd2: /* TOP_B2_U */ |
| 1060 |
s->src_f2_top &= 0x0000ffff;
|
| 1061 |
s->src_f2_top |= (uint32_t) value << 16;
|
| 1062 |
break;
|
| 1063 |
|
| 1064 |
case 0xbd4: /* BOT_B2_L */ |
| 1065 |
s->src_f2_bottom &= 0xffff0000;
|
| 1066 |
s->src_f2_bottom |= 0x0000ffff & value;
|
| 1067 |
break;
|
| 1068 |
|
| 1069 |
case 0xbd6: /* BOT_B2_U */ |
| 1070 |
s->src_f2_bottom &= 0x0000ffff;
|
| 1071 |
s->src_f2_bottom |= (uint32_t) value << 16;
|
| 1072 |
break;
|
| 1073 |
|
| 1074 |
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */ |
| 1075 |
s->element_index_f1 = value; |
| 1076 |
break;
|
| 1077 |
|
| 1078 |
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */ |
| 1079 |
s->frame_index_f1 &= 0xffff0000;
|
| 1080 |
s->frame_index_f1 |= 0x0000ffff & value;
|
| 1081 |
break;
|
| 1082 |
|
| 1083 |
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */ |
| 1084 |
s->frame_index_f1 &= 0x0000ffff;
|
| 1085 |
s->frame_index_f1 |= (uint32_t) value << 16;
|
| 1086 |
break;
|
| 1087 |
|
| 1088 |
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */ |
| 1089 |
s->element_index_f2 = value; |
| 1090 |
break;
|
| 1091 |
|
| 1092 |
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */ |
| 1093 |
s->frame_index_f2 &= 0xffff0000;
|
| 1094 |
s->frame_index_f2 |= 0x0000ffff & value;
|
| 1095 |
break;
|
| 1096 |
|
| 1097 |
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */ |
| 1098 |
s->frame_index_f2 &= 0x0000ffff;
|
| 1099 |
s->frame_index_f2 |= (uint32_t) value << 16;
|
| 1100 |
break;
|
| 1101 |
|
| 1102 |
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */ |
| 1103 |
s->elements_f1 = value; |
| 1104 |
break;
|
| 1105 |
|
| 1106 |
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */ |
| 1107 |
s->frames_f1 = value; |
| 1108 |
break;
|
| 1109 |
|
| 1110 |
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */ |
| 1111 |
s->elements_f2 = value; |
| 1112 |
break;
|
| 1113 |
|
| 1114 |
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */ |
| 1115 |
s->frames_f2 = value; |
| 1116 |
break;
|
| 1117 |
|
| 1118 |
case 0xbea: /* DMA_LCD_LCH_CTRL */ |
| 1119 |
s->lch_type = value & 0xf;
|
| 1120 |
break;
|
| 1121 |
|
| 1122 |
default:
|
| 1123 |
return 1; |
| 1124 |
} |
| 1125 |
return 0; |
| 1126 |
} |
| 1127 |
|
| 1128 |
static int omap_dma_3_2_lcd_read(struct omap_dma_lcd_channel_s *s, int offset, |
| 1129 |
uint16_t *ret) |
| 1130 |
{
|
| 1131 |
switch (offset) {
|
| 1132 |
case 0xbc0: /* DMA_LCD_CSDP */ |
| 1133 |
*ret = (s->brust_f2 << 14) |
|
| 1134 |
(s->pack_f2 << 13) |
|
| 1135 |
((s->data_type_f2 >> 1) << 11) | |
| 1136 |
(s->brust_f1 << 7) |
|
| 1137 |
(s->pack_f1 << 6) |
|
| 1138 |
((s->data_type_f1 >> 1) << 0); |
| 1139 |
break;
|
| 1140 |
|
| 1141 |
case 0xbc2: /* DMA_LCD_CCR */ |
| 1142 |
*ret = (s->mode_f2 << 14) |
|
| 1143 |
(s->mode_f1 << 12) |
|
| 1144 |
(s->end_prog << 11) |
|
| 1145 |
(s->omap_3_1_compatible_disable << 10) |
|
| 1146 |
(s->repeat << 9) |
|
| 1147 |
(s->auto_init << 8) |
|
| 1148 |
(s->running << 7) |
|
| 1149 |
(s->priority << 6) |
|
| 1150 |
(s->bs << 4);
|
| 1151 |
break;
|
| 1152 |
|
| 1153 |
case 0xbc4: /* DMA_LCD_CTRL */ |
| 1154 |
qemu_irq_lower(s->irq); |
| 1155 |
*ret = (s->dst << 8) |
|
| 1156 |
((s->src & 0x6) << 5) | |
| 1157 |
(s->condition << 3) |
|
| 1158 |
(s->interrupts << 1) |
|
| 1159 |
s->dual; |
| 1160 |
break;
|
| 1161 |
|
| 1162 |
case 0xbc8: /* TOP_B1_L */ |
| 1163 |
*ret = s->src_f1_top & 0xffff;
|
| 1164 |
break;
|
| 1165 |
|
| 1166 |
case 0xbca: /* TOP_B1_U */ |
| 1167 |
*ret = s->src_f1_top >> 16;
|
| 1168 |
break;
|
| 1169 |
|
| 1170 |
case 0xbcc: /* BOT_B1_L */ |
| 1171 |
*ret = s->src_f1_bottom & 0xffff;
|
| 1172 |
break;
|
| 1173 |
|
| 1174 |
case 0xbce: /* BOT_B1_U */ |
| 1175 |
*ret = s->src_f1_bottom >> 16;
|
| 1176 |
break;
|
| 1177 |
|
| 1178 |
case 0xbd0: /* TOP_B2_L */ |
| 1179 |
*ret = s->src_f2_top & 0xffff;
|
| 1180 |
break;
|
| 1181 |
|
| 1182 |
case 0xbd2: /* TOP_B2_U */ |
| 1183 |
*ret = s->src_f2_top >> 16;
|
| 1184 |
break;
|
| 1185 |
|
| 1186 |
case 0xbd4: /* BOT_B2_L */ |
| 1187 |
*ret = s->src_f2_bottom & 0xffff;
|
| 1188 |
break;
|
| 1189 |
|
| 1190 |
case 0xbd6: /* BOT_B2_U */ |
| 1191 |
*ret = s->src_f2_bottom >> 16;
|
| 1192 |
break;
|
| 1193 |
|
| 1194 |
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */ |
| 1195 |
*ret = s->element_index_f1; |
| 1196 |
break;
|
| 1197 |
|
| 1198 |
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */ |
| 1199 |
*ret = s->frame_index_f1 & 0xffff;
|
| 1200 |
break;
|
| 1201 |
|
| 1202 |
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */ |
| 1203 |
*ret = s->frame_index_f1 >> 16;
|
| 1204 |
break;
|
| 1205 |
|
| 1206 |
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */ |
| 1207 |
*ret = s->element_index_f2; |
| 1208 |
break;
|
| 1209 |
|
| 1210 |
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */ |
| 1211 |
*ret = s->frame_index_f2 & 0xffff;
|
| 1212 |
break;
|
| 1213 |
|
| 1214 |
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */ |
| 1215 |
*ret = s->frame_index_f2 >> 16;
|
| 1216 |
break;
|
| 1217 |
|
| 1218 |
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */ |
| 1219 |
*ret = s->elements_f1; |
| 1220 |
break;
|
| 1221 |
|
| 1222 |
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */ |
| 1223 |
*ret = s->frames_f1; |
| 1224 |
break;
|
| 1225 |
|
| 1226 |
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */ |
| 1227 |
*ret = s->elements_f2; |
| 1228 |
break;
|
| 1229 |
|
| 1230 |
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */ |
| 1231 |
*ret = s->frames_f2; |
| 1232 |
break;
|
| 1233 |
|
| 1234 |
case 0xbea: /* DMA_LCD_LCH_CTRL */ |
| 1235 |
*ret = s->lch_type; |
| 1236 |
break;
|
| 1237 |
|
| 1238 |
default:
|
| 1239 |
return 1; |
| 1240 |
} |
| 1241 |
return 0; |
| 1242 |
} |
| 1243 |
|
| 1244 |
static int omap_dma_3_1_lcd_write(struct omap_dma_lcd_channel_s *s, int offset, |
| 1245 |
uint16_t value) |
| 1246 |
{
|
| 1247 |
switch (offset) {
|
| 1248 |
case 0x300: /* SYS_DMA_LCD_CTRL */ |
| 1249 |
s->src = (value & 0x40) ? imif : emiff;
|
| 1250 |
s->condition = 0;
|
| 1251 |
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
|
| 1252 |
s->interrupts = (value >> 1) & 1; |
| 1253 |
s->dual = value & 1;
|
| 1254 |
break;
|
| 1255 |
|
| 1256 |
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */ |
| 1257 |
s->src_f1_top &= 0xffff0000;
|
| 1258 |
s->src_f1_top |= 0x0000ffff & value;
|
| 1259 |
break;
|
| 1260 |
|
| 1261 |
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */ |
| 1262 |
s->src_f1_top &= 0x0000ffff;
|
| 1263 |
s->src_f1_top |= value << 16;
|
| 1264 |
break;
|
| 1265 |
|
| 1266 |
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */ |
| 1267 |
s->src_f1_bottom &= 0xffff0000;
|
| 1268 |
s->src_f1_bottom |= 0x0000ffff & value;
|
| 1269 |
break;
|
| 1270 |
|
| 1271 |
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */ |
| 1272 |
s->src_f1_bottom &= 0x0000ffff;
|
| 1273 |
s->src_f1_bottom |= value << 16;
|
| 1274 |
break;
|
| 1275 |
|
| 1276 |
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */ |
| 1277 |
s->src_f2_top &= 0xffff0000;
|
| 1278 |
s->src_f2_top |= 0x0000ffff & value;
|
| 1279 |
break;
|
| 1280 |
|
| 1281 |
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */ |
| 1282 |
s->src_f2_top &= 0x0000ffff;
|
| 1283 |
s->src_f2_top |= value << 16;
|
| 1284 |
break;
|
| 1285 |
|
| 1286 |
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */ |
| 1287 |
s->src_f2_bottom &= 0xffff0000;
|
| 1288 |
s->src_f2_bottom |= 0x0000ffff & value;
|
| 1289 |
break;
|
| 1290 |
|
| 1291 |
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */ |
| 1292 |
s->src_f2_bottom &= 0x0000ffff;
|
| 1293 |
s->src_f2_bottom |= value << 16;
|
| 1294 |
break;
|
| 1295 |
|
| 1296 |
default:
|
| 1297 |
return 1; |
| 1298 |
} |
| 1299 |
return 0; |
| 1300 |
} |
| 1301 |
|
| 1302 |
static int omap_dma_3_1_lcd_read(struct omap_dma_lcd_channel_s *s, int offset, |
| 1303 |
uint16_t *ret) |
| 1304 |
{
|
| 1305 |
int i;
|
| 1306 |
|
| 1307 |
switch (offset) {
|
| 1308 |
case 0x300: /* SYS_DMA_LCD_CTRL */ |
| 1309 |
i = s->condition; |
| 1310 |
s->condition = 0;
|
| 1311 |
qemu_irq_lower(s->irq); |
| 1312 |
*ret = ((s->src == imif) << 6) | (i << 3) | |
| 1313 |
(s->interrupts << 1) | s->dual;
|
| 1314 |
break;
|
| 1315 |
|
| 1316 |
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */ |
| 1317 |
*ret = s->src_f1_top & 0xffff;
|
| 1318 |
break;
|
| 1319 |
|
| 1320 |
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */ |
| 1321 |
*ret = s->src_f1_top >> 16;
|
| 1322 |
break;
|
| 1323 |
|
| 1324 |
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */ |
| 1325 |
*ret = s->src_f1_bottom & 0xffff;
|
| 1326 |
break;
|
| 1327 |
|
| 1328 |
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */ |
| 1329 |
*ret = s->src_f1_bottom >> 16;
|
| 1330 |
break;
|
| 1331 |
|
| 1332 |
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */ |
| 1333 |
*ret = s->src_f2_top & 0xffff;
|
| 1334 |
break;
|
| 1335 |
|
| 1336 |
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */ |
| 1337 |
*ret = s->src_f2_top >> 16;
|
| 1338 |
break;
|
| 1339 |
|
| 1340 |
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */ |
| 1341 |
*ret = s->src_f2_bottom & 0xffff;
|
| 1342 |
break;
|
| 1343 |
|
| 1344 |
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */ |
| 1345 |
*ret = s->src_f2_bottom >> 16;
|
| 1346 |
break;
|
| 1347 |
|
| 1348 |
default:
|
| 1349 |
return 1; |
| 1350 |
} |
| 1351 |
return 0; |
| 1352 |
} |
| 1353 |
|
| 1354 |
static int omap_dma_sys_write(struct omap_dma_s *s, int offset, uint16_t value) |
| 1355 |
{
|
| 1356 |
switch (offset) {
|
| 1357 |
case 0x400: /* SYS_DMA_GCR */ |
| 1358 |
s->gcr = value; |
| 1359 |
break;
|
| 1360 |
|
| 1361 |
case 0x404: /* DMA_GSCR */ |
| 1362 |
if (value & 0x8) |
| 1363 |
omap_dma_disable_3_1_mapping(s); |
| 1364 |
else
|
| 1365 |
omap_dma_enable_3_1_mapping(s); |
| 1366 |
break;
|
| 1367 |
|
| 1368 |
case 0x408: /* DMA_GRST */ |
| 1369 |
if (value & 0x1) |
| 1370 |
omap_dma_reset(s->dma); |
| 1371 |
break;
|
| 1372 |
|
| 1373 |
default:
|
| 1374 |
return 1; |
| 1375 |
} |
| 1376 |
return 0; |
| 1377 |
} |
| 1378 |
|
| 1379 |
static int omap_dma_sys_read(struct omap_dma_s *s, int offset, |
| 1380 |
uint16_t *ret) |
| 1381 |
{
|
| 1382 |
switch (offset) {
|
| 1383 |
case 0x400: /* SYS_DMA_GCR */ |
| 1384 |
*ret = s->gcr; |
| 1385 |
break;
|
| 1386 |
|
| 1387 |
case 0x404: /* DMA_GSCR */ |
| 1388 |
*ret = s->omap_3_1_mapping_disabled << 3;
|
| 1389 |
break;
|
| 1390 |
|
| 1391 |
case 0x408: /* DMA_GRST */ |
| 1392 |
*ret = 0;
|
| 1393 |
break;
|
| 1394 |
|
| 1395 |
case 0x442: /* DMA_HW_ID */ |
| 1396 |
case 0x444: /* DMA_PCh2_ID */ |
| 1397 |
case 0x446: /* DMA_PCh0_ID */ |
| 1398 |
case 0x448: /* DMA_PCh1_ID */ |
| 1399 |
case 0x44a: /* DMA_PChG_ID */ |
| 1400 |
case 0x44c: /* DMA_PChD_ID */ |
| 1401 |
*ret = 1;
|
| 1402 |
break;
|
| 1403 |
|
| 1404 |
case 0x44e: /* DMA_CAPS_0_U */ |
| 1405 |
*ret = (s->caps[0] >> 16) & 0xffff; |
| 1406 |
break;
|
| 1407 |
case 0x450: /* DMA_CAPS_0_L */ |
| 1408 |
*ret = (s->caps[0] >> 0) & 0xffff; |
| 1409 |
break;
|
| 1410 |
|
| 1411 |
case 0x452: /* DMA_CAPS_1_U */ |
| 1412 |
*ret = (s->caps[1] >> 16) & 0xffff; |
| 1413 |
break;
|
| 1414 |
case 0x454: /* DMA_CAPS_1_L */ |
| 1415 |
*ret = (s->caps[1] >> 0) & 0xffff; |
| 1416 |
break;
|
| 1417 |
|
| 1418 |
case 0x456: /* DMA_CAPS_2 */ |
| 1419 |
*ret = s->caps[2];
|
| 1420 |
break;
|
| 1421 |
|
| 1422 |
case 0x458: /* DMA_CAPS_3 */ |
| 1423 |
*ret = s->caps[3];
|
| 1424 |
break;
|
| 1425 |
|
| 1426 |
case 0x45a: /* DMA_CAPS_4 */ |
| 1427 |
*ret = s->caps[4];
|
| 1428 |
break;
|
| 1429 |
|
| 1430 |
case 0x460: /* DMA_PCh2_SR */ |
| 1431 |
case 0x480: /* DMA_PCh0_SR */ |
| 1432 |
case 0x482: /* DMA_PCh1_SR */ |
| 1433 |
case 0x4c0: /* DMA_PChD_SR_0 */ |
| 1434 |
printf("%s: Physical Channel Status Registers not implemented.\n",
|
| 1435 |
__FUNCTION__); |
| 1436 |
*ret = 0xff;
|
| 1437 |
break;
|
| 1438 |
|
| 1439 |
default:
|
| 1440 |
return 1; |
| 1441 |
} |
| 1442 |
return 0; |
| 1443 |
} |
| 1444 |
|
| 1445 |
static uint32_t omap_dma_read(void *opaque, target_phys_addr_t addr) |
| 1446 |
{
|
| 1447 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
| 1448 |
int reg, ch;
|
| 1449 |
uint16_t ret; |
| 1450 |
|
| 1451 |
switch (addr) {
|
| 1452 |
case 0x300 ... 0x3fe: |
| 1453 |
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
|
| 1454 |
if (omap_dma_3_1_lcd_read(&s->lcd_ch, addr, &ret))
|
| 1455 |
break;
|
| 1456 |
return ret;
|
| 1457 |
} |
| 1458 |
/* Fall through. */
|
| 1459 |
case 0x000 ... 0x2fe: |
| 1460 |
reg = addr & 0x3f;
|
| 1461 |
ch = (addr >> 6) & 0x0f; |
| 1462 |
if (omap_dma_ch_reg_read(s, &s->ch[ch], reg, &ret))
|
| 1463 |
break;
|
| 1464 |
return ret;
|
| 1465 |
|
| 1466 |
case 0x404 ... 0x4fe: |
| 1467 |
if (s->model <= omap_dma_3_1)
|
| 1468 |
break;
|
| 1469 |
/* Fall through. */
|
| 1470 |
case 0x400: |
| 1471 |
if (omap_dma_sys_read(s, addr, &ret))
|
| 1472 |
break;
|
| 1473 |
return ret;
|
| 1474 |
|
| 1475 |
case 0xb00 ... 0xbfe: |
| 1476 |
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
|
| 1477 |
if (omap_dma_3_2_lcd_read(&s->lcd_ch, addr, &ret))
|
| 1478 |
break;
|
| 1479 |
return ret;
|
| 1480 |
} |
| 1481 |
break;
|
| 1482 |
} |
| 1483 |
|
| 1484 |
OMAP_BAD_REG(addr); |
| 1485 |
return 0; |
| 1486 |
} |
| 1487 |
|
| 1488 |
static void omap_dma_write(void *opaque, target_phys_addr_t addr, |
| 1489 |
uint32_t value) |
| 1490 |
{
|
| 1491 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
| 1492 |
int reg, ch;
|
| 1493 |
|
| 1494 |
switch (addr) {
|
| 1495 |
case 0x300 ... 0x3fe: |
| 1496 |
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
|
| 1497 |
if (omap_dma_3_1_lcd_write(&s->lcd_ch, addr, value))
|
| 1498 |
break;
|
| 1499 |
return;
|
| 1500 |
} |
| 1501 |
/* Fall through. */
|
| 1502 |
case 0x000 ... 0x2fe: |
| 1503 |
reg = addr & 0x3f;
|
| 1504 |
ch = (addr >> 6) & 0x0f; |
| 1505 |
if (omap_dma_ch_reg_write(s, &s->ch[ch], reg, value))
|
| 1506 |
break;
|
| 1507 |
return;
|
| 1508 |
|
| 1509 |
case 0x404 ... 0x4fe: |
| 1510 |
if (s->model <= omap_dma_3_1)
|
| 1511 |
break;
|
| 1512 |
case 0x400: |
| 1513 |
/* Fall through. */
|
| 1514 |
if (omap_dma_sys_write(s, addr, value))
|
| 1515 |
break;
|
| 1516 |
return;
|
| 1517 |
|
| 1518 |
case 0xb00 ... 0xbfe: |
| 1519 |
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
|
| 1520 |
if (omap_dma_3_2_lcd_write(&s->lcd_ch, addr, value))
|
| 1521 |
break;
|
| 1522 |
return;
|
| 1523 |
} |
| 1524 |
break;
|
| 1525 |
} |
| 1526 |
|
| 1527 |
OMAP_BAD_REG(addr); |
| 1528 |
} |
| 1529 |
|
| 1530 |
static CPUReadMemoryFunc *omap_dma_readfn[] = {
|
| 1531 |
omap_badwidth_read16, |
| 1532 |
omap_dma_read, |
| 1533 |
omap_badwidth_read16, |
| 1534 |
}; |
| 1535 |
|
| 1536 |
static CPUWriteMemoryFunc *omap_dma_writefn[] = {
|
| 1537 |
omap_badwidth_write16, |
| 1538 |
omap_dma_write, |
| 1539 |
omap_badwidth_write16, |
| 1540 |
}; |
| 1541 |
|
| 1542 |
static void omap_dma_request(void *opaque, int drq, int req) |
| 1543 |
{
|
| 1544 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
| 1545 |
/* The request pins are level triggered in QEMU. */
|
| 1546 |
if (req) {
|
| 1547 |
if (~s->dma->drqbmp & (1 << drq)) { |
| 1548 |
s->dma->drqbmp |= 1 << drq;
|
| 1549 |
omap_dma_process_request(s, drq); |
| 1550 |
} |
| 1551 |
} else
|
| 1552 |
s->dma->drqbmp &= ~(1 << drq);
|
| 1553 |
} |
| 1554 |
|
| 1555 |
/* XXX: this won't be needed once soc_dma knows about clocks. */
|
| 1556 |
static void omap_dma_clk_update(void *opaque, int line, int on) |
| 1557 |
{
|
| 1558 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
| 1559 |
int i;
|
| 1560 |
|
| 1561 |
s->dma->freq = omap_clk_getrate(s->clk); |
| 1562 |
|
| 1563 |
for (i = 0; i < s->chans; i ++) |
| 1564 |
if (s->ch[i].active)
|
| 1565 |
soc_dma_set_request(s->ch[i].dma, on); |
| 1566 |
} |
| 1567 |
|
| 1568 |
static void omap_dma_setcaps(struct omap_dma_s *s) |
| 1569 |
{
|
| 1570 |
switch (s->model) {
|
| 1571 |
default:
|
| 1572 |
case omap_dma_3_1:
|
| 1573 |
break;
|
| 1574 |
case omap_dma_3_2:
|
| 1575 |
case omap_dma_4:
|
| 1576 |
/* XXX Only available for sDMA */
|
| 1577 |
s->caps[0] =
|
| 1578 |
(1 << 19) | /* Constant Fill Capability */ |
| 1579 |
(1 << 18); /* Transparent BLT Capability */ |
| 1580 |
s->caps[1] =
|
| 1581 |
(1 << 1); /* 1-bit palettized capability (DMA 3.2 only) */ |
| 1582 |
s->caps[2] =
|
| 1583 |
(1 << 8) | /* SEPARATE_SRC_AND_DST_INDEX_CPBLTY */ |
| 1584 |
(1 << 7) | /* DST_DOUBLE_INDEX_ADRS_CPBLTY */ |
| 1585 |
(1 << 6) | /* DST_SINGLE_INDEX_ADRS_CPBLTY */ |
| 1586 |
(1 << 5) | /* DST_POST_INCRMNT_ADRS_CPBLTY */ |
| 1587 |
(1 << 4) | /* DST_CONST_ADRS_CPBLTY */ |
| 1588 |
(1 << 3) | /* SRC_DOUBLE_INDEX_ADRS_CPBLTY */ |
| 1589 |
(1 << 2) | /* SRC_SINGLE_INDEX_ADRS_CPBLTY */ |
| 1590 |
(1 << 1) | /* SRC_POST_INCRMNT_ADRS_CPBLTY */ |
| 1591 |
(1 << 0); /* SRC_CONST_ADRS_CPBLTY */ |
| 1592 |
s->caps[3] =
|
| 1593 |
(1 << 6) | /* BLOCK_SYNCHR_CPBLTY (DMA 4 only) */ |
| 1594 |
(1 << 7) | /* PKT_SYNCHR_CPBLTY (DMA 4 only) */ |
| 1595 |
(1 << 5) | /* CHANNEL_CHAINING_CPBLTY */ |
| 1596 |
(1 << 4) | /* LCh_INTERLEAVE_CPBLTY */ |
| 1597 |
(1 << 3) | /* AUTOINIT_REPEAT_CPBLTY (DMA 3.2 only) */ |
| 1598 |
(1 << 2) | /* AUTOINIT_ENDPROG_CPBLTY (DMA 3.2 only) */ |
| 1599 |
(1 << 1) | /* FRAME_SYNCHR_CPBLTY */ |
| 1600 |
(1 << 0); /* ELMNT_SYNCHR_CPBLTY */ |
| 1601 |
s->caps[4] =
|
| 1602 |
(1 << 7) | /* PKT_INTERRUPT_CPBLTY (DMA 4 only) */ |
| 1603 |
(1 << 6) | /* SYNC_STATUS_CPBLTY */ |
| 1604 |
(1 << 5) | /* BLOCK_INTERRUPT_CPBLTY */ |
| 1605 |
(1 << 4) | /* LAST_FRAME_INTERRUPT_CPBLTY */ |
| 1606 |
(1 << 3) | /* FRAME_INTERRUPT_CPBLTY */ |
| 1607 |
(1 << 2) | /* HALF_FRAME_INTERRUPT_CPBLTY */ |
| 1608 |
(1 << 1) | /* EVENT_DROP_INTERRUPT_CPBLTY */ |
| 1609 |
(1 << 0); /* TIMEOUT_INTERRUPT_CPBLTY (DMA 3.2 only) */ |
| 1610 |
break;
|
| 1611 |
} |
| 1612 |
} |
| 1613 |
|
| 1614 |
struct soc_dma_s *omap_dma_init(target_phys_addr_t base, qemu_irq *irqs,
|
| 1615 |
qemu_irq lcd_irq, struct omap_mpu_state_s *mpu, omap_clk clk,
|
| 1616 |
enum omap_dma_model model)
|
| 1617 |
{
|
| 1618 |
int iomemtype, num_irqs, memsize, i;
|
| 1619 |
struct omap_dma_s *s = (struct omap_dma_s *) |
| 1620 |
qemu_mallocz(sizeof(struct omap_dma_s)); |
| 1621 |
|
| 1622 |
if (model <= omap_dma_3_1) {
|
| 1623 |
num_irqs = 6;
|
| 1624 |
memsize = 0x800;
|
| 1625 |
} else {
|
| 1626 |
num_irqs = 16;
|
| 1627 |
memsize = 0xc00;
|
| 1628 |
} |
| 1629 |
s->model = model; |
| 1630 |
s->mpu = mpu; |
| 1631 |
s->clk = clk; |
| 1632 |
s->lcd_ch.irq = lcd_irq; |
| 1633 |
s->lcd_ch.mpu = mpu; |
| 1634 |
|
| 1635 |
s->dma = soc_dma_init((model <= omap_dma_3_1) ? 9 : 16); |
| 1636 |
s->dma->freq = omap_clk_getrate(clk); |
| 1637 |
s->dma->transfer_fn = omap_dma_transfer_generic; |
| 1638 |
s->dma->setup_fn = omap_dma_transfer_setup; |
| 1639 |
s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
|
| 1640 |
s->dma->opaque = s; |
| 1641 |
|
| 1642 |
while (num_irqs --)
|
| 1643 |
s->ch[num_irqs].irq = irqs[num_irqs]; |
| 1644 |
for (i = 0; i < 3; i ++) { |
| 1645 |
s->ch[i].sibling = &s->ch[i + 6];
|
| 1646 |
s->ch[i + 6].sibling = &s->ch[i];
|
| 1647 |
} |
| 1648 |
for (i = (model <= omap_dma_3_1) ? 8 : 15; i >= 0; i --) { |
| 1649 |
s->ch[i].dma = &s->dma->ch[i]; |
| 1650 |
s->dma->ch[i].opaque = &s->ch[i]; |
| 1651 |
} |
| 1652 |
|
| 1653 |
omap_dma_setcaps(s); |
| 1654 |
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]); |
| 1655 |
omap_dma_reset(s->dma); |
| 1656 |
omap_dma_clk_update(s, 0, 1); |
| 1657 |
|
| 1658 |
iomemtype = cpu_register_io_memory(0, omap_dma_readfn,
|
| 1659 |
omap_dma_writefn, s); |
| 1660 |
cpu_register_physical_memory(base, memsize, iomemtype); |
| 1661 |
|
| 1662 |
mpu->drq = s->dma->drq; |
| 1663 |
|
| 1664 |
return s->dma;
|
| 1665 |
} |
| 1666 |
|
| 1667 |
static void omap_dma_interrupts_4_update(struct omap_dma_s *s) |
| 1668 |
{
|
| 1669 |
struct omap_dma_channel_s *ch = s->ch;
|
| 1670 |
uint32_t bmp, bit; |
| 1671 |
|
| 1672 |
for (bmp = 0, bit = 1; bit; ch ++, bit <<= 1) |
| 1673 |
if (ch->status) {
|
| 1674 |
bmp |= bit; |
| 1675 |
ch->cstatus |= ch->status; |
| 1676 |
ch->status = 0;
|
| 1677 |
} |
| 1678 |
if ((s->irqstat[0] |= s->irqen[0] & bmp)) |
| 1679 |
qemu_irq_raise(s->irq[0]);
|
| 1680 |
if ((s->irqstat[1] |= s->irqen[1] & bmp)) |
| 1681 |
qemu_irq_raise(s->irq[1]);
|
| 1682 |
if ((s->irqstat[2] |= s->irqen[2] & bmp)) |
| 1683 |
qemu_irq_raise(s->irq[2]);
|
| 1684 |
if ((s->irqstat[3] |= s->irqen[3] & bmp)) |
| 1685 |
qemu_irq_raise(s->irq[3]);
|
| 1686 |
} |
| 1687 |
|
| 1688 |
static uint32_t omap_dma4_read(void *opaque, target_phys_addr_t addr) |
| 1689 |
{
|
| 1690 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
| 1691 |
int irqn = 0, chnum; |
| 1692 |
struct omap_dma_channel_s *ch;
|
| 1693 |
|
| 1694 |
switch (addr) {
|
| 1695 |
case 0x00: /* DMA4_REVISION */ |
| 1696 |
return 0x40; |
| 1697 |
|
| 1698 |
case 0x14: /* DMA4_IRQSTATUS_L3 */ |
| 1699 |
irqn ++; |
| 1700 |
case 0x10: /* DMA4_IRQSTATUS_L2 */ |
| 1701 |
irqn ++; |
| 1702 |
case 0x0c: /* DMA4_IRQSTATUS_L1 */ |
| 1703 |
irqn ++; |
| 1704 |
case 0x08: /* DMA4_IRQSTATUS_L0 */ |
| 1705 |
return s->irqstat[irqn];
|
| 1706 |
|
| 1707 |
case 0x24: /* DMA4_IRQENABLE_L3 */ |
| 1708 |
irqn ++; |
| 1709 |
case 0x20: /* DMA4_IRQENABLE_L2 */ |
| 1710 |
irqn ++; |
| 1711 |
case 0x1c: /* DMA4_IRQENABLE_L1 */ |
| 1712 |
irqn ++; |
| 1713 |
case 0x18: /* DMA4_IRQENABLE_L0 */ |
| 1714 |
return s->irqen[irqn];
|
| 1715 |
|
| 1716 |
case 0x28: /* DMA4_SYSSTATUS */ |
| 1717 |
return 1; /* RESETDONE */ |
| 1718 |
|
| 1719 |
case 0x2c: /* DMA4_OCP_SYSCONFIG */ |
| 1720 |
return s->ocp;
|
| 1721 |
|
| 1722 |
case 0x64: /* DMA4_CAPS_0 */ |
| 1723 |
return s->caps[0]; |
| 1724 |
case 0x6c: /* DMA4_CAPS_2 */ |
| 1725 |
return s->caps[2]; |
| 1726 |
case 0x70: /* DMA4_CAPS_3 */ |
| 1727 |
return s->caps[3]; |
| 1728 |
case 0x74: /* DMA4_CAPS_4 */ |
| 1729 |
return s->caps[4]; |
| 1730 |
|
| 1731 |
case 0x78: /* DMA4_GCR */ |
| 1732 |
return s->gcr;
|
| 1733 |
|
| 1734 |
case 0x80 ... 0xfff: |
| 1735 |
addr -= 0x80;
|
| 1736 |
chnum = addr / 0x60;
|
| 1737 |
ch = s->ch + chnum; |
| 1738 |
addr -= chnum * 0x60;
|
| 1739 |
break;
|
| 1740 |
|
| 1741 |
default:
|
| 1742 |
OMAP_BAD_REG(addr); |
| 1743 |
return 0; |
| 1744 |
} |
| 1745 |
|
| 1746 |
/* Per-channel registers */
|
| 1747 |
switch (addr) {
|
| 1748 |
case 0x00: /* DMA4_CCR */ |
| 1749 |
return (ch->buf_disable << 25) | |
| 1750 |
(ch->src_sync << 24) |
|
| 1751 |
(ch->prefetch << 23) |
|
| 1752 |
((ch->sync & 0x60) << 14) | |
| 1753 |
(ch->bs << 18) |
|
| 1754 |
(ch->transparent_copy << 17) |
|
| 1755 |
(ch->constant_fill << 16) |
|
| 1756 |
(ch->mode[1] << 14) | |
| 1757 |
(ch->mode[0] << 12) | |
| 1758 |
(0 << 10) | (0 << 9) | |
| 1759 |
(ch->suspend << 8) |
|
| 1760 |
(ch->enable << 7) |
|
| 1761 |
(ch->priority << 6) |
|
| 1762 |
(ch->fs << 5) | (ch->sync & 0x1f); |
| 1763 |
|
| 1764 |
case 0x04: /* DMA4_CLNK_CTRL */ |
| 1765 |
return (ch->link_enabled << 15) | ch->link_next_ch; |
| 1766 |
|
| 1767 |
case 0x08: /* DMA4_CICR */ |
| 1768 |
return ch->interrupts;
|
| 1769 |
|
| 1770 |
case 0x0c: /* DMA4_CSR */ |
| 1771 |
return ch->cstatus;
|
| 1772 |
|
| 1773 |
case 0x10: /* DMA4_CSDP */ |
| 1774 |
return (ch->endian[0] << 21) | |
| 1775 |
(ch->endian_lock[0] << 20) | |
| 1776 |
(ch->endian[1] << 19) | |
| 1777 |
(ch->endian_lock[1] << 18) | |
| 1778 |
(ch->write_mode << 16) |
|
| 1779 |
(ch->burst[1] << 14) | |
| 1780 |
(ch->pack[1] << 13) | |
| 1781 |
(ch->translate[1] << 9) | |
| 1782 |
(ch->burst[0] << 7) | |
| 1783 |
(ch->pack[0] << 6) | |
| 1784 |
(ch->translate[0] << 2) | |
| 1785 |
(ch->data_type >> 1);
|
| 1786 |
|
| 1787 |
case 0x14: /* DMA4_CEN */ |
| 1788 |
return ch->elements;
|
| 1789 |
|
| 1790 |
case 0x18: /* DMA4_CFN */ |
| 1791 |
return ch->frames;
|
| 1792 |
|
| 1793 |
case 0x1c: /* DMA4_CSSA */ |
| 1794 |
return ch->addr[0]; |
| 1795 |
|
| 1796 |
case 0x20: /* DMA4_CDSA */ |
| 1797 |
return ch->addr[1]; |
| 1798 |
|
| 1799 |
case 0x24: /* DMA4_CSEI */ |
| 1800 |
return ch->element_index[0]; |
| 1801 |
|
| 1802 |
case 0x28: /* DMA4_CSFI */ |
| 1803 |
return ch->frame_index[0]; |
| 1804 |
|
| 1805 |
case 0x2c: /* DMA4_CDEI */ |
| 1806 |
return ch->element_index[1]; |
| 1807 |
|
| 1808 |
case 0x30: /* DMA4_CDFI */ |
| 1809 |
return ch->frame_index[1]; |
| 1810 |
|
| 1811 |
case 0x34: /* DMA4_CSAC */ |
| 1812 |
return ch->active_set.src & 0xffff; |
| 1813 |
|
| 1814 |
case 0x38: /* DMA4_CDAC */ |
| 1815 |
return ch->active_set.dest & 0xffff; |
| 1816 |
|
| 1817 |
case 0x3c: /* DMA4_CCEN */ |
| 1818 |
return ch->active_set.element;
|
| 1819 |
|
| 1820 |
case 0x40: /* DMA4_CCFN */ |
| 1821 |
return ch->active_set.frame;
|
| 1822 |
|
| 1823 |
case 0x44: /* DMA4_COLOR */ |
| 1824 |
/* XXX only in sDMA */
|
| 1825 |
return ch->color;
|
| 1826 |
|
| 1827 |
default:
|
| 1828 |
OMAP_BAD_REG(addr); |
| 1829 |
return 0; |
| 1830 |
} |
| 1831 |
} |
| 1832 |
|
| 1833 |
static void omap_dma4_write(void *opaque, target_phys_addr_t addr, |
| 1834 |
uint32_t value) |
| 1835 |
{
|
| 1836 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
| 1837 |
int chnum, irqn = 0; |
| 1838 |
struct omap_dma_channel_s *ch;
|
| 1839 |
|
| 1840 |
switch (addr) {
|
| 1841 |
case 0x14: /* DMA4_IRQSTATUS_L3 */ |
| 1842 |
irqn ++; |
| 1843 |
case 0x10: /* DMA4_IRQSTATUS_L2 */ |
| 1844 |
irqn ++; |
| 1845 |
case 0x0c: /* DMA4_IRQSTATUS_L1 */ |
| 1846 |
irqn ++; |
| 1847 |
case 0x08: /* DMA4_IRQSTATUS_L0 */ |
| 1848 |
s->irqstat[irqn] &= ~value; |
| 1849 |
if (!s->irqstat[irqn])
|
| 1850 |
qemu_irq_lower(s->irq[irqn]); |
| 1851 |
return;
|
| 1852 |
|
| 1853 |
case 0x24: /* DMA4_IRQENABLE_L3 */ |
| 1854 |
irqn ++; |
| 1855 |
case 0x20: /* DMA4_IRQENABLE_L2 */ |
| 1856 |
irqn ++; |
| 1857 |
case 0x1c: /* DMA4_IRQENABLE_L1 */ |
| 1858 |
irqn ++; |
| 1859 |
case 0x18: /* DMA4_IRQENABLE_L0 */ |
| 1860 |
s->irqen[irqn] = value; |
| 1861 |
return;
|
| 1862 |
|
| 1863 |
case 0x2c: /* DMA4_OCP_SYSCONFIG */ |
| 1864 |
if (value & 2) /* SOFTRESET */ |
| 1865 |
omap_dma_reset(s->dma); |
| 1866 |
s->ocp = value & 0x3321;
|
| 1867 |
if (((s->ocp >> 12) & 3) == 3) /* MIDLEMODE */ |
| 1868 |
fprintf(stderr, "%s: invalid DMA power mode\n", __FUNCTION__);
|
| 1869 |
return;
|
| 1870 |
|
| 1871 |
case 0x78: /* DMA4_GCR */ |
| 1872 |
s->gcr = value & 0x00ff00ff;
|
| 1873 |
if ((value & 0xff) == 0x00) /* MAX_CHANNEL_FIFO_DEPTH */ |
| 1874 |
fprintf(stderr, "%s: wrong FIFO depth in GCR\n", __FUNCTION__);
|
| 1875 |
return;
|
| 1876 |
|
| 1877 |
case 0x80 ... 0xfff: |
| 1878 |
addr -= 0x80;
|
| 1879 |
chnum = addr / 0x60;
|
| 1880 |
ch = s->ch + chnum; |
| 1881 |
addr -= chnum * 0x60;
|
| 1882 |
break;
|
| 1883 |
|
| 1884 |
case 0x00: /* DMA4_REVISION */ |
| 1885 |
case 0x28: /* DMA4_SYSSTATUS */ |
| 1886 |
case 0x64: /* DMA4_CAPS_0 */ |
| 1887 |
case 0x6c: /* DMA4_CAPS_2 */ |
| 1888 |
case 0x70: /* DMA4_CAPS_3 */ |
| 1889 |
case 0x74: /* DMA4_CAPS_4 */ |
| 1890 |
OMAP_RO_REG(addr); |
| 1891 |
return;
|
| 1892 |
|
| 1893 |
default:
|
| 1894 |
OMAP_BAD_REG(addr); |
| 1895 |
return;
|
| 1896 |
} |
| 1897 |
|
| 1898 |
/* Per-channel registers */
|
| 1899 |
switch (addr) {
|
| 1900 |
case 0x00: /* DMA4_CCR */ |
| 1901 |
ch->buf_disable = (value >> 25) & 1; |
| 1902 |
ch->src_sync = (value >> 24) & 1; /* XXX For CamDMA must be 1 */ |
| 1903 |
if (ch->buf_disable && !ch->src_sync)
|
| 1904 |
fprintf(stderr, "%s: Buffering disable is not allowed in "
|
| 1905 |
"destination synchronised mode\n", __FUNCTION__);
|
| 1906 |
ch->prefetch = (value >> 23) & 1; |
| 1907 |
ch->bs = (value >> 18) & 1; |
| 1908 |
ch->transparent_copy = (value >> 17) & 1; |
| 1909 |
ch->constant_fill = (value >> 16) & 1; |
| 1910 |
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14); |
| 1911 |
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12); |
| 1912 |
ch->suspend = (value & 0x0100) >> 8; |
| 1913 |
ch->priority = (value & 0x0040) >> 6; |
| 1914 |
ch->fs = (value & 0x0020) >> 5; |
| 1915 |
if (ch->fs && ch->bs && ch->mode[0] && ch->mode[1]) |
| 1916 |
fprintf(stderr, "%s: For a packet transfer at least one port "
|
| 1917 |
"must be constant-addressed\n", __FUNCTION__);
|
| 1918 |
ch->sync = (value & 0x001f) | ((value >> 14) & 0x0060); |
| 1919 |
/* XXX must be 0x01 for CamDMA */
|
| 1920 |
|
| 1921 |
if (value & 0x0080) |
| 1922 |
omap_dma_enable_channel(s, ch); |
| 1923 |
else
|
| 1924 |
omap_dma_disable_channel(s, ch); |
| 1925 |
|
| 1926 |
break;
|
| 1927 |
|
| 1928 |
case 0x04: /* DMA4_CLNK_CTRL */ |
| 1929 |
ch->link_enabled = (value >> 15) & 0x1; |
| 1930 |
ch->link_next_ch = value & 0x1f;
|
| 1931 |
break;
|
| 1932 |
|
| 1933 |
case 0x08: /* DMA4_CICR */ |
| 1934 |
ch->interrupts = value & 0x09be;
|
| 1935 |
break;
|
| 1936 |
|
| 1937 |
case 0x0c: /* DMA4_CSR */ |
| 1938 |
ch->cstatus &= ~value; |
| 1939 |
break;
|
| 1940 |
|
| 1941 |
case 0x10: /* DMA4_CSDP */ |
| 1942 |
ch->endian[0] =(value >> 21) & 1; |
| 1943 |
ch->endian_lock[0] =(value >> 20) & 1; |
| 1944 |
ch->endian[1] =(value >> 19) & 1; |
| 1945 |
ch->endian_lock[1] =(value >> 18) & 1; |
| 1946 |
if (ch->endian[0] != ch->endian[1]) |
| 1947 |
fprintf(stderr, "%s: DMA endiannes conversion enable attempt\n",
|
| 1948 |
__FUNCTION__); |
| 1949 |
ch->write_mode = (value >> 16) & 3; |
| 1950 |
ch->burst[1] = (value & 0xc000) >> 14; |
| 1951 |
ch->pack[1] = (value & 0x2000) >> 13; |
| 1952 |
ch->translate[1] = (value & 0x1e00) >> 9; |
| 1953 |
ch->burst[0] = (value & 0x0180) >> 7; |
| 1954 |
ch->pack[0] = (value & 0x0040) >> 6; |
| 1955 |
ch->translate[0] = (value & 0x003c) >> 2; |
| 1956 |
if (ch->translate[0] | ch->translate[1]) |
| 1957 |
fprintf(stderr, "%s: bad MReqAddressTranslate sideband signal\n",
|
| 1958 |
__FUNCTION__); |
| 1959 |
ch->data_type = 1 << (value & 3); |
| 1960 |
if ((value & 3) == 3) |
| 1961 |
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
|
| 1962 |
break;
|
| 1963 |
|
| 1964 |
case 0x14: /* DMA4_CEN */ |
| 1965 |
ch->set_update = 1;
|
| 1966 |
ch->elements = value & 0xffffff;
|
| 1967 |
break;
|
| 1968 |
|
| 1969 |
case 0x18: /* DMA4_CFN */ |
| 1970 |
ch->frames = value & 0xffff;
|
| 1971 |
ch->set_update = 1;
|
| 1972 |
break;
|
| 1973 |
|
| 1974 |
case 0x1c: /* DMA4_CSSA */ |
| 1975 |
ch->addr[0] = (target_phys_addr_t) (uint32_t) value;
|
| 1976 |
ch->set_update = 1;
|
| 1977 |
break;
|
| 1978 |
|
| 1979 |
case 0x20: /* DMA4_CDSA */ |
| 1980 |
ch->addr[1] = (target_phys_addr_t) (uint32_t) value;
|
| 1981 |
ch->set_update = 1;
|
| 1982 |
break;
|
| 1983 |
|
| 1984 |
case 0x24: /* DMA4_CSEI */ |
| 1985 |
ch->element_index[0] = (int16_t) value;
|
| 1986 |
ch->set_update = 1;
|
| 1987 |
break;
|
| 1988 |
|
| 1989 |
case 0x28: /* DMA4_CSFI */ |
| 1990 |
ch->frame_index[0] = (int32_t) value;
|
| 1991 |
ch->set_update = 1;
|
| 1992 |
break;
|
| 1993 |
|
| 1994 |
case 0x2c: /* DMA4_CDEI */ |
| 1995 |
ch->element_index[1] = (int16_t) value;
|
| 1996 |
ch->set_update = 1;
|
| 1997 |
break;
|
| 1998 |
|
| 1999 |
case 0x30: /* DMA4_CDFI */ |
| 2000 |
ch->frame_index[1] = (int32_t) value;
|
| 2001 |
ch->set_update = 1;
|
| 2002 |
break;
|
| 2003 |
|
| 2004 |
case 0x44: /* DMA4_COLOR */ |
| 2005 |
/* XXX only in sDMA */
|
| 2006 |
ch->color = value; |
| 2007 |
break;
|
| 2008 |
|
| 2009 |
case 0x34: /* DMA4_CSAC */ |
| 2010 |
case 0x38: /* DMA4_CDAC */ |
| 2011 |
case 0x3c: /* DMA4_CCEN */ |
| 2012 |
case 0x40: /* DMA4_CCFN */ |
| 2013 |
OMAP_RO_REG(addr); |
| 2014 |
break;
|
| 2015 |
|
| 2016 |
default:
|
| 2017 |
OMAP_BAD_REG(addr); |
| 2018 |
} |
| 2019 |
} |
| 2020 |
|
| 2021 |
static CPUReadMemoryFunc *omap_dma4_readfn[] = {
|
| 2022 |
omap_badwidth_read16, |
| 2023 |
omap_dma4_read, |
| 2024 |
omap_dma4_read, |
| 2025 |
}; |
| 2026 |
|
| 2027 |
static CPUWriteMemoryFunc *omap_dma4_writefn[] = {
|
| 2028 |
omap_badwidth_write16, |
| 2029 |
omap_dma4_write, |
| 2030 |
omap_dma4_write, |
| 2031 |
}; |
| 2032 |
|
| 2033 |
struct soc_dma_s *omap_dma4_init(target_phys_addr_t base, qemu_irq *irqs,
|
| 2034 |
struct omap_mpu_state_s *mpu, int fifo, |
| 2035 |
int chans, omap_clk iclk, omap_clk fclk)
|
| 2036 |
{
|
| 2037 |
int iomemtype, i;
|
| 2038 |
struct omap_dma_s *s = (struct omap_dma_s *) |
| 2039 |
qemu_mallocz(sizeof(struct omap_dma_s)); |
| 2040 |
|
| 2041 |
s->model = omap_dma_4; |
| 2042 |
s->chans = chans; |
| 2043 |
s->mpu = mpu; |
| 2044 |
s->clk = fclk; |
| 2045 |
|
| 2046 |
s->dma = soc_dma_init(s->chans); |
| 2047 |
s->dma->freq = omap_clk_getrate(fclk); |
| 2048 |
s->dma->transfer_fn = omap_dma_transfer_generic; |
| 2049 |
s->dma->setup_fn = omap_dma_transfer_setup; |
| 2050 |
s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 64);
|
| 2051 |
s->dma->opaque = s; |
| 2052 |
for (i = 0; i < s->chans; i ++) { |
| 2053 |
s->ch[i].dma = &s->dma->ch[i]; |
| 2054 |
s->dma->ch[i].opaque = &s->ch[i]; |
| 2055 |
} |
| 2056 |
|
| 2057 |
memcpy(&s->irq, irqs, sizeof(s->irq));
|
| 2058 |
s->intr_update = omap_dma_interrupts_4_update; |
| 2059 |
|
| 2060 |
omap_dma_setcaps(s); |
| 2061 |
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]); |
| 2062 |
omap_dma_reset(s->dma); |
| 2063 |
omap_dma_clk_update(s, 0, !!s->dma->freq);
|
| 2064 |
|
| 2065 |
iomemtype = cpu_register_io_memory(0, omap_dma4_readfn,
|
| 2066 |
omap_dma4_writefn, s); |
| 2067 |
cpu_register_physical_memory(base, 0x1000, iomemtype);
|
| 2068 |
|
| 2069 |
mpu->drq = s->dma->drq; |
| 2070 |
|
| 2071 |
return s->dma;
|
| 2072 |
} |
| 2073 |
|
| 2074 |
struct omap_dma_lcd_channel_s *omap_dma_get_lcdch(struct soc_dma_s *dma) |
| 2075 |
{
|
| 2076 |
struct omap_dma_s *s = dma->opaque;
|
| 2077 |
|
| 2078 |
return &s->lcd_ch;
|
| 2079 |
} |