root / hw / omap_dma.c @ 2cae4119
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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, see <http://www.gnu.org/licenses/>.
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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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/* 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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/* 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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/* interruption data */
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int interrupts;
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int status;
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int cstatus;
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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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/* sync type */
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int fs;
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int bs;
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/* compatibility */
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int omap_3_1_compatible_disable;
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qemu_irq irq; |
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struct omap_dma_channel_s *sibling;
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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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struct soc_dma_ch_s *dma;
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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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struct omap_dma_s {
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struct soc_dma_s *dma;
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MemoryRegion iomem; |
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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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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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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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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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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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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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/* 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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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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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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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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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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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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/* 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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} |
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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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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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} |
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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; |
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} |
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static void omap_dma_disable_3_1_mapping(struct omap_dma_s *s) |
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{ |
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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; |
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} |
341 |
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static void omap_dma_process_request(struct omap_dma_s *s, int request) |
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{ |
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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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for (channel = 0; channel < s->chans; channel ++, ch ++) { |
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if (ch->enable && ch->sync == request) {
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if (!ch->active)
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omap_dma_activate_channel(s, ch); |
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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 |
} |
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} |
362 |
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if (drop_event)
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omap_dma_interrupts_update(s); |
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} |
366 |
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static void omap_dma_transfer_generic(struct soc_dma_ch_s *dma) |
368 |
{ |
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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
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do {
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/* Transfer a single element */
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379 |
/* FIXME: check the endianness */
|
380 |
if (!ch->constant_fill)
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cpu_physical_memory_read(a->src, value, ch->data_type); |
382 |
else
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*(uint32_t *) value = ch->color; |
384 |
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385 |
if (!ch->transparent_copy || *(uint32_t *) value != ch->color)
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cpu_physical_memory_write(a->dest, value, ch->data_type); |
387 |
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388 |
a->src += a->elem_delta[0];
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a->dest += a->elem_delta[1];
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a->element ++; |
391 |
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392 |
#ifndef MULTI_REQ
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393 |
if (a->element == a->elements) {
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394 |
/* End of Frame */
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395 |
a->element = 0;
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396 |
a->src += a->frame_delta[0];
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a->dest += a->frame_delta[1];
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a->frame ++; |
399 |
|
400 |
/* If the channel is async, update cpc */
|
401 |
if (!ch->sync)
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402 |
ch->cpc = a->dest & 0xffff;
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403 |
} |
404 |
} while ((bytes -= ch->data_type));
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405 |
#else
|
406 |
/* If the channel is element synchronized, deactivate it */
|
407 |
if (ch->sync && !ch->fs && !ch->bs)
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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)
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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 |
#ifndef MULTI_REQ
|
673 |
} |
674 |
#else
|
675 |
} |
676 |
#endif
|
677 |
|
678 |
omap_dma_interrupts_update(s); |
679 |
} |
680 |
|
681 |
void omap_dma_reset(struct soc_dma_s *dma) |
682 |
{ |
683 |
int i;
|
684 |
struct omap_dma_s *s = dma->opaque;
|
685 |
|
686 |
soc_dma_reset(s->dma); |
687 |
if (s->model < omap_dma_4)
|
688 |
s->gcr = 0x0004;
|
689 |
else
|
690 |
s->gcr = 0x00010010;
|
691 |
s->ocp = 0x00000000;
|
692 |
memset(&s->irqstat, 0, sizeof(s->irqstat)); |
693 |
memset(&s->irqen, 0, sizeof(s->irqen)); |
694 |
s->lcd_ch.src = emiff; |
695 |
s->lcd_ch.condition = 0;
|
696 |
s->lcd_ch.interrupts = 0;
|
697 |
s->lcd_ch.dual = 0;
|
698 |
if (s->model < omap_dma_4)
|
699 |
omap_dma_enable_3_1_mapping(s); |
700 |
for (i = 0; i < s->chans; i ++) { |
701 |
s->ch[i].suspend = 0;
|
702 |
s->ch[i].prefetch = 0;
|
703 |
s->ch[i].buf_disable = 0;
|
704 |
s->ch[i].src_sync = 0;
|
705 |
memset(&s->ch[i].burst, 0, sizeof(s->ch[i].burst)); |
706 |
memset(&s->ch[i].port, 0, sizeof(s->ch[i].port)); |
707 |
memset(&s->ch[i].mode, 0, sizeof(s->ch[i].mode)); |
708 |
memset(&s->ch[i].frame_index, 0, sizeof(s->ch[i].frame_index)); |
709 |
memset(&s->ch[i].element_index, 0, sizeof(s->ch[i].element_index)); |
710 |
memset(&s->ch[i].endian, 0, sizeof(s->ch[i].endian)); |
711 |
memset(&s->ch[i].endian_lock, 0, sizeof(s->ch[i].endian_lock)); |
712 |
memset(&s->ch[i].translate, 0, sizeof(s->ch[i].translate)); |
713 |
s->ch[i].write_mode = 0;
|
714 |
s->ch[i].data_type = 0;
|
715 |
s->ch[i].transparent_copy = 0;
|
716 |
s->ch[i].constant_fill = 0;
|
717 |
s->ch[i].color = 0x00000000;
|
718 |
s->ch[i].end_prog = 0;
|
719 |
s->ch[i].repeat = 0;
|
720 |
s->ch[i].auto_init = 0;
|
721 |
s->ch[i].link_enabled = 0;
|
722 |
if (s->model < omap_dma_4)
|
723 |
s->ch[i].interrupts = 0x0003;
|
724 |
else
|
725 |
s->ch[i].interrupts = 0x0000;
|
726 |
s->ch[i].status = 0;
|
727 |
s->ch[i].cstatus = 0;
|
728 |
s->ch[i].active = 0;
|
729 |
s->ch[i].enable = 0;
|
730 |
s->ch[i].sync = 0;
|
731 |
s->ch[i].pending_request = 0;
|
732 |
s->ch[i].waiting_end_prog = 0;
|
733 |
s->ch[i].cpc = 0x0000;
|
734 |
s->ch[i].fs = 0;
|
735 |
s->ch[i].bs = 0;
|
736 |
s->ch[i].omap_3_1_compatible_disable = 0;
|
737 |
memset(&s->ch[i].active_set, 0, sizeof(s->ch[i].active_set)); |
738 |
s->ch[i].priority = 0;
|
739 |
s->ch[i].interleave_disabled = 0;
|
740 |
s->ch[i].type = 0;
|
741 |
} |
742 |
} |
743 |
|
744 |
static int omap_dma_ch_reg_read(struct omap_dma_s *s, |
745 |
struct omap_dma_channel_s *ch, int reg, uint16_t *value) |
746 |
{ |
747 |
switch (reg) {
|
748 |
case 0x00: /* SYS_DMA_CSDP_CH0 */ |
749 |
*value = (ch->burst[1] << 14) | |
750 |
(ch->pack[1] << 13) | |
751 |
(ch->port[1] << 9) | |
752 |
(ch->burst[0] << 7) | |
753 |
(ch->pack[0] << 6) | |
754 |
(ch->port[0] << 2) | |
755 |
(ch->data_type >> 1);
|
756 |
break;
|
757 |
|
758 |
case 0x02: /* SYS_DMA_CCR_CH0 */ |
759 |
if (s->model <= omap_dma_3_1)
|
760 |
*value = 0 << 10; /* FIFO_FLUSH reads as 0 */ |
761 |
else
|
762 |
*value = ch->omap_3_1_compatible_disable << 10;
|
763 |
*value |= (ch->mode[1] << 14) | |
764 |
(ch->mode[0] << 12) | |
765 |
(ch->end_prog << 11) |
|
766 |
(ch->repeat << 9) |
|
767 |
(ch->auto_init << 8) |
|
768 |
(ch->enable << 7) |
|
769 |
(ch->priority << 6) |
|
770 |
(ch->fs << 5) | ch->sync;
|
771 |
break;
|
772 |
|
773 |
case 0x04: /* SYS_DMA_CICR_CH0 */ |
774 |
*value = ch->interrupts; |
775 |
break;
|
776 |
|
777 |
case 0x06: /* SYS_DMA_CSR_CH0 */ |
778 |
*value = ch->status; |
779 |
ch->status &= SYNC; |
780 |
if (!ch->omap_3_1_compatible_disable && ch->sibling) {
|
781 |
*value |= (ch->sibling->status & 0x3f) << 6; |
782 |
ch->sibling->status &= SYNC; |
783 |
} |
784 |
qemu_irq_lower(ch->irq); |
785 |
break;
|
786 |
|
787 |
case 0x08: /* SYS_DMA_CSSA_L_CH0 */ |
788 |
*value = ch->addr[0] & 0x0000ffff; |
789 |
break;
|
790 |
|
791 |
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */ |
792 |
*value = ch->addr[0] >> 16; |
793 |
break;
|
794 |
|
795 |
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */ |
796 |
*value = ch->addr[1] & 0x0000ffff; |
797 |
break;
|
798 |
|
799 |
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */ |
800 |
*value = ch->addr[1] >> 16; |
801 |
break;
|
802 |
|
803 |
case 0x10: /* SYS_DMA_CEN_CH0 */ |
804 |
*value = ch->elements; |
805 |
break;
|
806 |
|
807 |
case 0x12: /* SYS_DMA_CFN_CH0 */ |
808 |
*value = ch->frames; |
809 |
break;
|
810 |
|
811 |
case 0x14: /* SYS_DMA_CFI_CH0 */ |
812 |
*value = ch->frame_index[0];
|
813 |
break;
|
814 |
|
815 |
case 0x16: /* SYS_DMA_CEI_CH0 */ |
816 |
*value = ch->element_index[0];
|
817 |
break;
|
818 |
|
819 |
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */ |
820 |
if (ch->omap_3_1_compatible_disable)
|
821 |
*value = ch->active_set.src & 0xffff; /* CSAC */ |
822 |
else
|
823 |
*value = ch->cpc; |
824 |
break;
|
825 |
|
826 |
case 0x1a: /* DMA_CDAC */ |
827 |
*value = ch->active_set.dest & 0xffff; /* CDAC */ |
828 |
break;
|
829 |
|
830 |
case 0x1c: /* DMA_CDEI */ |
831 |
*value = ch->element_index[1];
|
832 |
break;
|
833 |
|
834 |
case 0x1e: /* DMA_CDFI */ |
835 |
*value = ch->frame_index[1];
|
836 |
break;
|
837 |
|
838 |
case 0x20: /* DMA_COLOR_L */ |
839 |
*value = ch->color & 0xffff;
|
840 |
break;
|
841 |
|
842 |
case 0x22: /* DMA_COLOR_U */ |
843 |
*value = ch->color >> 16;
|
844 |
break;
|
845 |
|
846 |
case 0x24: /* DMA_CCR2 */ |
847 |
*value = (ch->bs << 2) |
|
848 |
(ch->transparent_copy << 1) |
|
849 |
ch->constant_fill; |
850 |
break;
|
851 |
|
852 |
case 0x28: /* DMA_CLNK_CTRL */ |
853 |
*value = (ch->link_enabled << 15) |
|
854 |
(ch->link_next_ch & 0xf);
|
855 |
break;
|
856 |
|
857 |
case 0x2a: /* DMA_LCH_CTRL */ |
858 |
*value = (ch->interleave_disabled << 15) |
|
859 |
ch->type; |
860 |
break;
|
861 |
|
862 |
default:
|
863 |
return 1; |
864 |
} |
865 |
return 0; |
866 |
} |
867 |
|
868 |
static int omap_dma_ch_reg_write(struct omap_dma_s *s, |
869 |
struct omap_dma_channel_s *ch, int reg, uint16_t value) |
870 |
{ |
871 |
switch (reg) {
|
872 |
case 0x00: /* SYS_DMA_CSDP_CH0 */ |
873 |
ch->burst[1] = (value & 0xc000) >> 14; |
874 |
ch->pack[1] = (value & 0x2000) >> 13; |
875 |
ch->port[1] = (enum omap_dma_port) ((value & 0x1e00) >> 9); |
876 |
ch->burst[0] = (value & 0x0180) >> 7; |
877 |
ch->pack[0] = (value & 0x0040) >> 6; |
878 |
ch->port[0] = (enum omap_dma_port) ((value & 0x003c) >> 2); |
879 |
ch->data_type = 1 << (value & 3); |
880 |
if (ch->port[0] >= __omap_dma_port_last) |
881 |
printf("%s: invalid DMA port %i\n", __FUNCTION__,
|
882 |
ch->port[0]);
|
883 |
if (ch->port[1] >= __omap_dma_port_last) |
884 |
printf("%s: invalid DMA port %i\n", __FUNCTION__,
|
885 |
ch->port[1]);
|
886 |
if ((value & 3) == 3) |
887 |
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
|
888 |
break;
|
889 |
|
890 |
case 0x02: /* SYS_DMA_CCR_CH0 */ |
891 |
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14); |
892 |
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12); |
893 |
ch->end_prog = (value & 0x0800) >> 11; |
894 |
if (s->model >= omap_dma_3_2)
|
895 |
ch->omap_3_1_compatible_disable = (value >> 10) & 0x1; |
896 |
ch->repeat = (value & 0x0200) >> 9; |
897 |
ch->auto_init = (value & 0x0100) >> 8; |
898 |
ch->priority = (value & 0x0040) >> 6; |
899 |
ch->fs = (value & 0x0020) >> 5; |
900 |
ch->sync = value & 0x001f;
|
901 |
|
902 |
if (value & 0x0080) |
903 |
omap_dma_enable_channel(s, ch); |
904 |
else
|
905 |
omap_dma_disable_channel(s, ch); |
906 |
|
907 |
if (ch->end_prog)
|
908 |
omap_dma_channel_end_prog(s, ch); |
909 |
|
910 |
break;
|
911 |
|
912 |
case 0x04: /* SYS_DMA_CICR_CH0 */ |
913 |
ch->interrupts = value & 0x3f;
|
914 |
break;
|
915 |
|
916 |
case 0x06: /* SYS_DMA_CSR_CH0 */ |
917 |
OMAP_RO_REG((target_phys_addr_t) reg); |
918 |
break;
|
919 |
|
920 |
case 0x08: /* SYS_DMA_CSSA_L_CH0 */ |
921 |
ch->addr[0] &= 0xffff0000; |
922 |
ch->addr[0] |= value;
|
923 |
break;
|
924 |
|
925 |
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */ |
926 |
ch->addr[0] &= 0x0000ffff; |
927 |
ch->addr[0] |= (uint32_t) value << 16; |
928 |
break;
|
929 |
|
930 |
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */ |
931 |
ch->addr[1] &= 0xffff0000; |
932 |
ch->addr[1] |= value;
|
933 |
break;
|
934 |
|
935 |
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */ |
936 |
ch->addr[1] &= 0x0000ffff; |
937 |
ch->addr[1] |= (uint32_t) value << 16; |
938 |
break;
|
939 |
|
940 |
case 0x10: /* SYS_DMA_CEN_CH0 */ |
941 |
ch->elements = value; |
942 |
break;
|
943 |
|
944 |
case 0x12: /* SYS_DMA_CFN_CH0 */ |
945 |
ch->frames = value; |
946 |
break;
|
947 |
|
948 |
case 0x14: /* SYS_DMA_CFI_CH0 */ |
949 |
ch->frame_index[0] = (int16_t) value;
|
950 |
break;
|
951 |
|
952 |
case 0x16: /* SYS_DMA_CEI_CH0 */ |
953 |
ch->element_index[0] = (int16_t) value;
|
954 |
break;
|
955 |
|
956 |
case 0x18: /* SYS_DMA_CPC_CH0 or DMA_CSAC */ |
957 |
OMAP_RO_REG((target_phys_addr_t) reg); |
958 |
break;
|
959 |
|
960 |
case 0x1c: /* DMA_CDEI */ |
961 |
ch->element_index[1] = (int16_t) value;
|
962 |
break;
|
963 |
|
964 |
case 0x1e: /* DMA_CDFI */ |
965 |
ch->frame_index[1] = (int16_t) value;
|
966 |
break;
|
967 |
|
968 |
case 0x20: /* DMA_COLOR_L */ |
969 |
ch->color &= 0xffff0000;
|
970 |
ch->color |= value; |
971 |
break;
|
972 |
|
973 |
case 0x22: /* DMA_COLOR_U */ |
974 |
ch->color &= 0xffff;
|
975 |
ch->color |= value << 16;
|
976 |
break;
|
977 |
|
978 |
case 0x24: /* DMA_CCR2 */ |
979 |
ch->bs = (value >> 2) & 0x1; |
980 |
ch->transparent_copy = (value >> 1) & 0x1; |
981 |
ch->constant_fill = value & 0x1;
|
982 |
break;
|
983 |
|
984 |
case 0x28: /* DMA_CLNK_CTRL */ |
985 |
ch->link_enabled = (value >> 15) & 0x1; |
986 |
if (value & (1 << 14)) { /* Stop_Lnk */ |
987 |
ch->link_enabled = 0;
|
988 |
omap_dma_disable_channel(s, ch); |
989 |
} |
990 |
ch->link_next_ch = value & 0x1f;
|
991 |
break;
|
992 |
|
993 |
case 0x2a: /* DMA_LCH_CTRL */ |
994 |
ch->interleave_disabled = (value >> 15) & 0x1; |
995 |
ch->type = value & 0xf;
|
996 |
break;
|
997 |
|
998 |
default:
|
999 |
return 1; |
1000 |
} |
1001 |
return 0; |
1002 |
} |
1003 |
|
1004 |
static int omap_dma_3_2_lcd_write(struct omap_dma_lcd_channel_s *s, int offset, |
1005 |
uint16_t value) |
1006 |
{ |
1007 |
switch (offset) {
|
1008 |
case 0xbc0: /* DMA_LCD_CSDP */ |
1009 |
s->brust_f2 = (value >> 14) & 0x3; |
1010 |
s->pack_f2 = (value >> 13) & 0x1; |
1011 |
s->data_type_f2 = (1 << ((value >> 11) & 0x3)); |
1012 |
s->brust_f1 = (value >> 7) & 0x3; |
1013 |
s->pack_f1 = (value >> 6) & 0x1; |
1014 |
s->data_type_f1 = (1 << ((value >> 0) & 0x3)); |
1015 |
break;
|
1016 |
|
1017 |
case 0xbc2: /* DMA_LCD_CCR */ |
1018 |
s->mode_f2 = (value >> 14) & 0x3; |
1019 |
s->mode_f1 = (value >> 12) & 0x3; |
1020 |
s->end_prog = (value >> 11) & 0x1; |
1021 |
s->omap_3_1_compatible_disable = (value >> 10) & 0x1; |
1022 |
s->repeat = (value >> 9) & 0x1; |
1023 |
s->auto_init = (value >> 8) & 0x1; |
1024 |
s->running = (value >> 7) & 0x1; |
1025 |
s->priority = (value >> 6) & 0x1; |
1026 |
s->bs = (value >> 4) & 0x1; |
1027 |
break;
|
1028 |
|
1029 |
case 0xbc4: /* DMA_LCD_CTRL */ |
1030 |
s->dst = (value >> 8) & 0x1; |
1031 |
s->src = ((value >> 6) & 0x3) << 1; |
1032 |
s->condition = 0;
|
1033 |
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
|
1034 |
s->interrupts = (value >> 1) & 1; |
1035 |
s->dual = value & 1;
|
1036 |
break;
|
1037 |
|
1038 |
case 0xbc8: /* TOP_B1_L */ |
1039 |
s->src_f1_top &= 0xffff0000;
|
1040 |
s->src_f1_top |= 0x0000ffff & value;
|
1041 |
break;
|
1042 |
|
1043 |
case 0xbca: /* TOP_B1_U */ |
1044 |
s->src_f1_top &= 0x0000ffff;
|
1045 |
s->src_f1_top |= value << 16;
|
1046 |
break;
|
1047 |
|
1048 |
case 0xbcc: /* BOT_B1_L */ |
1049 |
s->src_f1_bottom &= 0xffff0000;
|
1050 |
s->src_f1_bottom |= 0x0000ffff & value;
|
1051 |
break;
|
1052 |
|
1053 |
case 0xbce: /* BOT_B1_U */ |
1054 |
s->src_f1_bottom &= 0x0000ffff;
|
1055 |
s->src_f1_bottom |= (uint32_t) value << 16;
|
1056 |
break;
|
1057 |
|
1058 |
case 0xbd0: /* TOP_B2_L */ |
1059 |
s->src_f2_top &= 0xffff0000;
|
1060 |
s->src_f2_top |= 0x0000ffff & value;
|
1061 |
break;
|
1062 |
|
1063 |
case 0xbd2: /* TOP_B2_U */ |
1064 |
s->src_f2_top &= 0x0000ffff;
|
1065 |
s->src_f2_top |= (uint32_t) value << 16;
|
1066 |
break;
|
1067 |
|
1068 |
case 0xbd4: /* BOT_B2_L */ |
1069 |
s->src_f2_bottom &= 0xffff0000;
|
1070 |
s->src_f2_bottom |= 0x0000ffff & value;
|
1071 |
break;
|
1072 |
|
1073 |
case 0xbd6: /* BOT_B2_U */ |
1074 |
s->src_f2_bottom &= 0x0000ffff;
|
1075 |
s->src_f2_bottom |= (uint32_t) value << 16;
|
1076 |
break;
|
1077 |
|
1078 |
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */ |
1079 |
s->element_index_f1 = value; |
1080 |
break;
|
1081 |
|
1082 |
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */ |
1083 |
s->frame_index_f1 &= 0xffff0000;
|
1084 |
s->frame_index_f1 |= 0x0000ffff & value;
|
1085 |
break;
|
1086 |
|
1087 |
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */ |
1088 |
s->frame_index_f1 &= 0x0000ffff;
|
1089 |
s->frame_index_f1 |= (uint32_t) value << 16;
|
1090 |
break;
|
1091 |
|
1092 |
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */ |
1093 |
s->element_index_f2 = value; |
1094 |
break;
|
1095 |
|
1096 |
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */ |
1097 |
s->frame_index_f2 &= 0xffff0000;
|
1098 |
s->frame_index_f2 |= 0x0000ffff & value;
|
1099 |
break;
|
1100 |
|
1101 |
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */ |
1102 |
s->frame_index_f2 &= 0x0000ffff;
|
1103 |
s->frame_index_f2 |= (uint32_t) value << 16;
|
1104 |
break;
|
1105 |
|
1106 |
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */ |
1107 |
s->elements_f1 = value; |
1108 |
break;
|
1109 |
|
1110 |
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */ |
1111 |
s->frames_f1 = value; |
1112 |
break;
|
1113 |
|
1114 |
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */ |
1115 |
s->elements_f2 = value; |
1116 |
break;
|
1117 |
|
1118 |
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */ |
1119 |
s->frames_f2 = value; |
1120 |
break;
|
1121 |
|
1122 |
case 0xbea: /* DMA_LCD_LCH_CTRL */ |
1123 |
s->lch_type = value & 0xf;
|
1124 |
break;
|
1125 |
|
1126 |
default:
|
1127 |
return 1; |
1128 |
} |
1129 |
return 0; |
1130 |
} |
1131 |
|
1132 |
static int omap_dma_3_2_lcd_read(struct omap_dma_lcd_channel_s *s, int offset, |
1133 |
uint16_t *ret) |
1134 |
{ |
1135 |
switch (offset) {
|
1136 |
case 0xbc0: /* DMA_LCD_CSDP */ |
1137 |
*ret = (s->brust_f2 << 14) |
|
1138 |
(s->pack_f2 << 13) |
|
1139 |
((s->data_type_f2 >> 1) << 11) | |
1140 |
(s->brust_f1 << 7) |
|
1141 |
(s->pack_f1 << 6) |
|
1142 |
((s->data_type_f1 >> 1) << 0); |
1143 |
break;
|
1144 |
|
1145 |
case 0xbc2: /* DMA_LCD_CCR */ |
1146 |
*ret = (s->mode_f2 << 14) |
|
1147 |
(s->mode_f1 << 12) |
|
1148 |
(s->end_prog << 11) |
|
1149 |
(s->omap_3_1_compatible_disable << 10) |
|
1150 |
(s->repeat << 9) |
|
1151 |
(s->auto_init << 8) |
|
1152 |
(s->running << 7) |
|
1153 |
(s->priority << 6) |
|
1154 |
(s->bs << 4);
|
1155 |
break;
|
1156 |
|
1157 |
case 0xbc4: /* DMA_LCD_CTRL */ |
1158 |
qemu_irq_lower(s->irq); |
1159 |
*ret = (s->dst << 8) |
|
1160 |
((s->src & 0x6) << 5) | |
1161 |
(s->condition << 3) |
|
1162 |
(s->interrupts << 1) |
|
1163 |
s->dual; |
1164 |
break;
|
1165 |
|
1166 |
case 0xbc8: /* TOP_B1_L */ |
1167 |
*ret = s->src_f1_top & 0xffff;
|
1168 |
break;
|
1169 |
|
1170 |
case 0xbca: /* TOP_B1_U */ |
1171 |
*ret = s->src_f1_top >> 16;
|
1172 |
break;
|
1173 |
|
1174 |
case 0xbcc: /* BOT_B1_L */ |
1175 |
*ret = s->src_f1_bottom & 0xffff;
|
1176 |
break;
|
1177 |
|
1178 |
case 0xbce: /* BOT_B1_U */ |
1179 |
*ret = s->src_f1_bottom >> 16;
|
1180 |
break;
|
1181 |
|
1182 |
case 0xbd0: /* TOP_B2_L */ |
1183 |
*ret = s->src_f2_top & 0xffff;
|
1184 |
break;
|
1185 |
|
1186 |
case 0xbd2: /* TOP_B2_U */ |
1187 |
*ret = s->src_f2_top >> 16;
|
1188 |
break;
|
1189 |
|
1190 |
case 0xbd4: /* BOT_B2_L */ |
1191 |
*ret = s->src_f2_bottom & 0xffff;
|
1192 |
break;
|
1193 |
|
1194 |
case 0xbd6: /* BOT_B2_U */ |
1195 |
*ret = s->src_f2_bottom >> 16;
|
1196 |
break;
|
1197 |
|
1198 |
case 0xbd8: /* DMA_LCD_SRC_EI_B1 */ |
1199 |
*ret = s->element_index_f1; |
1200 |
break;
|
1201 |
|
1202 |
case 0xbda: /* DMA_LCD_SRC_FI_B1_L */ |
1203 |
*ret = s->frame_index_f1 & 0xffff;
|
1204 |
break;
|
1205 |
|
1206 |
case 0xbf4: /* DMA_LCD_SRC_FI_B1_U */ |
1207 |
*ret = s->frame_index_f1 >> 16;
|
1208 |
break;
|
1209 |
|
1210 |
case 0xbdc: /* DMA_LCD_SRC_EI_B2 */ |
1211 |
*ret = s->element_index_f2; |
1212 |
break;
|
1213 |
|
1214 |
case 0xbde: /* DMA_LCD_SRC_FI_B2_L */ |
1215 |
*ret = s->frame_index_f2 & 0xffff;
|
1216 |
break;
|
1217 |
|
1218 |
case 0xbf6: /* DMA_LCD_SRC_FI_B2_U */ |
1219 |
*ret = s->frame_index_f2 >> 16;
|
1220 |
break;
|
1221 |
|
1222 |
case 0xbe0: /* DMA_LCD_SRC_EN_B1 */ |
1223 |
*ret = s->elements_f1; |
1224 |
break;
|
1225 |
|
1226 |
case 0xbe4: /* DMA_LCD_SRC_FN_B1 */ |
1227 |
*ret = s->frames_f1; |
1228 |
break;
|
1229 |
|
1230 |
case 0xbe2: /* DMA_LCD_SRC_EN_B2 */ |
1231 |
*ret = s->elements_f2; |
1232 |
break;
|
1233 |
|
1234 |
case 0xbe6: /* DMA_LCD_SRC_FN_B2 */ |
1235 |
*ret = s->frames_f2; |
1236 |
break;
|
1237 |
|
1238 |
case 0xbea: /* DMA_LCD_LCH_CTRL */ |
1239 |
*ret = s->lch_type; |
1240 |
break;
|
1241 |
|
1242 |
default:
|
1243 |
return 1; |
1244 |
} |
1245 |
return 0; |
1246 |
} |
1247 |
|
1248 |
static int omap_dma_3_1_lcd_write(struct omap_dma_lcd_channel_s *s, int offset, |
1249 |
uint16_t value) |
1250 |
{ |
1251 |
switch (offset) {
|
1252 |
case 0x300: /* SYS_DMA_LCD_CTRL */ |
1253 |
s->src = (value & 0x40) ? imif : emiff;
|
1254 |
s->condition = 0;
|
1255 |
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
|
1256 |
s->interrupts = (value >> 1) & 1; |
1257 |
s->dual = value & 1;
|
1258 |
break;
|
1259 |
|
1260 |
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */ |
1261 |
s->src_f1_top &= 0xffff0000;
|
1262 |
s->src_f1_top |= 0x0000ffff & value;
|
1263 |
break;
|
1264 |
|
1265 |
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */ |
1266 |
s->src_f1_top &= 0x0000ffff;
|
1267 |
s->src_f1_top |= value << 16;
|
1268 |
break;
|
1269 |
|
1270 |
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */ |
1271 |
s->src_f1_bottom &= 0xffff0000;
|
1272 |
s->src_f1_bottom |= 0x0000ffff & value;
|
1273 |
break;
|
1274 |
|
1275 |
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */ |
1276 |
s->src_f1_bottom &= 0x0000ffff;
|
1277 |
s->src_f1_bottom |= value << 16;
|
1278 |
break;
|
1279 |
|
1280 |
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */ |
1281 |
s->src_f2_top &= 0xffff0000;
|
1282 |
s->src_f2_top |= 0x0000ffff & value;
|
1283 |
break;
|
1284 |
|
1285 |
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */ |
1286 |
s->src_f2_top &= 0x0000ffff;
|
1287 |
s->src_f2_top |= value << 16;
|
1288 |
break;
|
1289 |
|
1290 |
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */ |
1291 |
s->src_f2_bottom &= 0xffff0000;
|
1292 |
s->src_f2_bottom |= 0x0000ffff & value;
|
1293 |
break;
|
1294 |
|
1295 |
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */ |
1296 |
s->src_f2_bottom &= 0x0000ffff;
|
1297 |
s->src_f2_bottom |= value << 16;
|
1298 |
break;
|
1299 |
|
1300 |
default:
|
1301 |
return 1; |
1302 |
} |
1303 |
return 0; |
1304 |
} |
1305 |
|
1306 |
static int omap_dma_3_1_lcd_read(struct omap_dma_lcd_channel_s *s, int offset, |
1307 |
uint16_t *ret) |
1308 |
{ |
1309 |
int i;
|
1310 |
|
1311 |
switch (offset) {
|
1312 |
case 0x300: /* SYS_DMA_LCD_CTRL */ |
1313 |
i = s->condition; |
1314 |
s->condition = 0;
|
1315 |
qemu_irq_lower(s->irq); |
1316 |
*ret = ((s->src == imif) << 6) | (i << 3) | |
1317 |
(s->interrupts << 1) | s->dual;
|
1318 |
break;
|
1319 |
|
1320 |
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */ |
1321 |
*ret = s->src_f1_top & 0xffff;
|
1322 |
break;
|
1323 |
|
1324 |
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */ |
1325 |
*ret = s->src_f1_top >> 16;
|
1326 |
break;
|
1327 |
|
1328 |
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */ |
1329 |
*ret = s->src_f1_bottom & 0xffff;
|
1330 |
break;
|
1331 |
|
1332 |
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */ |
1333 |
*ret = s->src_f1_bottom >> 16;
|
1334 |
break;
|
1335 |
|
1336 |
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */ |
1337 |
*ret = s->src_f2_top & 0xffff;
|
1338 |
break;
|
1339 |
|
1340 |
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */ |
1341 |
*ret = s->src_f2_top >> 16;
|
1342 |
break;
|
1343 |
|
1344 |
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */ |
1345 |
*ret = s->src_f2_bottom & 0xffff;
|
1346 |
break;
|
1347 |
|
1348 |
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */ |
1349 |
*ret = s->src_f2_bottom >> 16;
|
1350 |
break;
|
1351 |
|
1352 |
default:
|
1353 |
return 1; |
1354 |
} |
1355 |
return 0; |
1356 |
} |
1357 |
|
1358 |
static int omap_dma_sys_write(struct omap_dma_s *s, int offset, uint16_t value) |
1359 |
{ |
1360 |
switch (offset) {
|
1361 |
case 0x400: /* SYS_DMA_GCR */ |
1362 |
s->gcr = value; |
1363 |
break;
|
1364 |
|
1365 |
case 0x404: /* DMA_GSCR */ |
1366 |
if (value & 0x8) |
1367 |
omap_dma_disable_3_1_mapping(s); |
1368 |
else
|
1369 |
omap_dma_enable_3_1_mapping(s); |
1370 |
break;
|
1371 |
|
1372 |
case 0x408: /* DMA_GRST */ |
1373 |
if (value & 0x1) |
1374 |
omap_dma_reset(s->dma); |
1375 |
break;
|
1376 |
|
1377 |
default:
|
1378 |
return 1; |
1379 |
} |
1380 |
return 0; |
1381 |
} |
1382 |
|
1383 |
static int omap_dma_sys_read(struct omap_dma_s *s, int offset, |
1384 |
uint16_t *ret) |
1385 |
{ |
1386 |
switch (offset) {
|
1387 |
case 0x400: /* SYS_DMA_GCR */ |
1388 |
*ret = s->gcr; |
1389 |
break;
|
1390 |
|
1391 |
case 0x404: /* DMA_GSCR */ |
1392 |
*ret = s->omap_3_1_mapping_disabled << 3;
|
1393 |
break;
|
1394 |
|
1395 |
case 0x408: /* DMA_GRST */ |
1396 |
*ret = 0;
|
1397 |
break;
|
1398 |
|
1399 |
case 0x442: /* DMA_HW_ID */ |
1400 |
case 0x444: /* DMA_PCh2_ID */ |
1401 |
case 0x446: /* DMA_PCh0_ID */ |
1402 |
case 0x448: /* DMA_PCh1_ID */ |
1403 |
case 0x44a: /* DMA_PChG_ID */ |
1404 |
case 0x44c: /* DMA_PChD_ID */ |
1405 |
*ret = 1;
|
1406 |
break;
|
1407 |
|
1408 |
case 0x44e: /* DMA_CAPS_0_U */ |
1409 |
*ret = (s->caps[0] >> 16) & 0xffff; |
1410 |
break;
|
1411 |
case 0x450: /* DMA_CAPS_0_L */ |
1412 |
*ret = (s->caps[0] >> 0) & 0xffff; |
1413 |
break;
|
1414 |
|
1415 |
case 0x452: /* DMA_CAPS_1_U */ |
1416 |
*ret = (s->caps[1] >> 16) & 0xffff; |
1417 |
break;
|
1418 |
case 0x454: /* DMA_CAPS_1_L */ |
1419 |
*ret = (s->caps[1] >> 0) & 0xffff; |
1420 |
break;
|
1421 |
|
1422 |
case 0x456: /* DMA_CAPS_2 */ |
1423 |
*ret = s->caps[2];
|
1424 |
break;
|
1425 |
|
1426 |
case 0x458: /* DMA_CAPS_3 */ |
1427 |
*ret = s->caps[3];
|
1428 |
break;
|
1429 |
|
1430 |
case 0x45a: /* DMA_CAPS_4 */ |
1431 |
*ret = s->caps[4];
|
1432 |
break;
|
1433 |
|
1434 |
case 0x460: /* DMA_PCh2_SR */ |
1435 |
case 0x480: /* DMA_PCh0_SR */ |
1436 |
case 0x482: /* DMA_PCh1_SR */ |
1437 |
case 0x4c0: /* DMA_PChD_SR_0 */ |
1438 |
printf("%s: Physical Channel Status Registers not implemented.\n",
|
1439 |
__FUNCTION__); |
1440 |
*ret = 0xff;
|
1441 |
break;
|
1442 |
|
1443 |
default:
|
1444 |
return 1; |
1445 |
} |
1446 |
return 0; |
1447 |
} |
1448 |
|
1449 |
static uint64_t omap_dma_read(void *opaque, target_phys_addr_t addr, |
1450 |
unsigned size)
|
1451 |
{ |
1452 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1453 |
int reg, ch;
|
1454 |
uint16_t ret; |
1455 |
|
1456 |
if (size != 2) { |
1457 |
return omap_badwidth_read16(opaque, addr);
|
1458 |
} |
1459 |
|
1460 |
switch (addr) {
|
1461 |
case 0x300 ... 0x3fe: |
1462 |
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
|
1463 |
if (omap_dma_3_1_lcd_read(&s->lcd_ch, addr, &ret))
|
1464 |
break;
|
1465 |
return ret;
|
1466 |
} |
1467 |
/* Fall through. */
|
1468 |
case 0x000 ... 0x2fe: |
1469 |
reg = addr & 0x3f;
|
1470 |
ch = (addr >> 6) & 0x0f; |
1471 |
if (omap_dma_ch_reg_read(s, &s->ch[ch], reg, &ret))
|
1472 |
break;
|
1473 |
return ret;
|
1474 |
|
1475 |
case 0x404 ... 0x4fe: |
1476 |
if (s->model <= omap_dma_3_1)
|
1477 |
break;
|
1478 |
/* Fall through. */
|
1479 |
case 0x400: |
1480 |
if (omap_dma_sys_read(s, addr, &ret))
|
1481 |
break;
|
1482 |
return ret;
|
1483 |
|
1484 |
case 0xb00 ... 0xbfe: |
1485 |
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
|
1486 |
if (omap_dma_3_2_lcd_read(&s->lcd_ch, addr, &ret))
|
1487 |
break;
|
1488 |
return ret;
|
1489 |
} |
1490 |
break;
|
1491 |
} |
1492 |
|
1493 |
OMAP_BAD_REG(addr); |
1494 |
return 0; |
1495 |
} |
1496 |
|
1497 |
static void omap_dma_write(void *opaque, target_phys_addr_t addr, |
1498 |
uint64_t value, unsigned size)
|
1499 |
{ |
1500 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1501 |
int reg, ch;
|
1502 |
|
1503 |
if (size != 2) { |
1504 |
return omap_badwidth_write16(opaque, addr, value);
|
1505 |
} |
1506 |
|
1507 |
switch (addr) {
|
1508 |
case 0x300 ... 0x3fe: |
1509 |
if (s->model <= omap_dma_3_1 || !s->omap_3_1_mapping_disabled) {
|
1510 |
if (omap_dma_3_1_lcd_write(&s->lcd_ch, addr, value))
|
1511 |
break;
|
1512 |
return;
|
1513 |
} |
1514 |
/* Fall through. */
|
1515 |
case 0x000 ... 0x2fe: |
1516 |
reg = addr & 0x3f;
|
1517 |
ch = (addr >> 6) & 0x0f; |
1518 |
if (omap_dma_ch_reg_write(s, &s->ch[ch], reg, value))
|
1519 |
break;
|
1520 |
return;
|
1521 |
|
1522 |
case 0x404 ... 0x4fe: |
1523 |
if (s->model <= omap_dma_3_1)
|
1524 |
break;
|
1525 |
case 0x400: |
1526 |
/* Fall through. */
|
1527 |
if (omap_dma_sys_write(s, addr, value))
|
1528 |
break;
|
1529 |
return;
|
1530 |
|
1531 |
case 0xb00 ... 0xbfe: |
1532 |
if (s->model == omap_dma_3_2 && s->omap_3_1_mapping_disabled) {
|
1533 |
if (omap_dma_3_2_lcd_write(&s->lcd_ch, addr, value))
|
1534 |
break;
|
1535 |
return;
|
1536 |
} |
1537 |
break;
|
1538 |
} |
1539 |
|
1540 |
OMAP_BAD_REG(addr); |
1541 |
} |
1542 |
|
1543 |
static const MemoryRegionOps omap_dma_ops = { |
1544 |
.read = omap_dma_read, |
1545 |
.write = omap_dma_write, |
1546 |
.endianness = DEVICE_NATIVE_ENDIAN, |
1547 |
}; |
1548 |
|
1549 |
static void omap_dma_request(void *opaque, int drq, int req) |
1550 |
{ |
1551 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1552 |
/* The request pins are level triggered in QEMU. */
|
1553 |
if (req) {
|
1554 |
if (~s->dma->drqbmp & (1 << drq)) { |
1555 |
s->dma->drqbmp |= 1 << drq;
|
1556 |
omap_dma_process_request(s, drq); |
1557 |
} |
1558 |
} else
|
1559 |
s->dma->drqbmp &= ~(1 << drq);
|
1560 |
} |
1561 |
|
1562 |
/* XXX: this won't be needed once soc_dma knows about clocks. */
|
1563 |
static void omap_dma_clk_update(void *opaque, int line, int on) |
1564 |
{ |
1565 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1566 |
int i;
|
1567 |
|
1568 |
s->dma->freq = omap_clk_getrate(s->clk); |
1569 |
|
1570 |
for (i = 0; i < s->chans; i ++) |
1571 |
if (s->ch[i].active)
|
1572 |
soc_dma_set_request(s->ch[i].dma, on); |
1573 |
} |
1574 |
|
1575 |
static void omap_dma_setcaps(struct omap_dma_s *s) |
1576 |
{ |
1577 |
switch (s->model) {
|
1578 |
default:
|
1579 |
case omap_dma_3_1:
|
1580 |
break;
|
1581 |
case omap_dma_3_2:
|
1582 |
case omap_dma_4:
|
1583 |
/* XXX Only available for sDMA */
|
1584 |
s->caps[0] =
|
1585 |
(1 << 19) | /* Constant Fill Capability */ |
1586 |
(1 << 18); /* Transparent BLT Capability */ |
1587 |
s->caps[1] =
|
1588 |
(1 << 1); /* 1-bit palettized capability (DMA 3.2 only) */ |
1589 |
s->caps[2] =
|
1590 |
(1 << 8) | /* SEPARATE_SRC_AND_DST_INDEX_CPBLTY */ |
1591 |
(1 << 7) | /* DST_DOUBLE_INDEX_ADRS_CPBLTY */ |
1592 |
(1 << 6) | /* DST_SINGLE_INDEX_ADRS_CPBLTY */ |
1593 |
(1 << 5) | /* DST_POST_INCRMNT_ADRS_CPBLTY */ |
1594 |
(1 << 4) | /* DST_CONST_ADRS_CPBLTY */ |
1595 |
(1 << 3) | /* SRC_DOUBLE_INDEX_ADRS_CPBLTY */ |
1596 |
(1 << 2) | /* SRC_SINGLE_INDEX_ADRS_CPBLTY */ |
1597 |
(1 << 1) | /* SRC_POST_INCRMNT_ADRS_CPBLTY */ |
1598 |
(1 << 0); /* SRC_CONST_ADRS_CPBLTY */ |
1599 |
s->caps[3] =
|
1600 |
(1 << 6) | /* BLOCK_SYNCHR_CPBLTY (DMA 4 only) */ |
1601 |
(1 << 7) | /* PKT_SYNCHR_CPBLTY (DMA 4 only) */ |
1602 |
(1 << 5) | /* CHANNEL_CHAINING_CPBLTY */ |
1603 |
(1 << 4) | /* LCh_INTERLEAVE_CPBLTY */ |
1604 |
(1 << 3) | /* AUTOINIT_REPEAT_CPBLTY (DMA 3.2 only) */ |
1605 |
(1 << 2) | /* AUTOINIT_ENDPROG_CPBLTY (DMA 3.2 only) */ |
1606 |
(1 << 1) | /* FRAME_SYNCHR_CPBLTY */ |
1607 |
(1 << 0); /* ELMNT_SYNCHR_CPBLTY */ |
1608 |
s->caps[4] =
|
1609 |
(1 << 7) | /* PKT_INTERRUPT_CPBLTY (DMA 4 only) */ |
1610 |
(1 << 6) | /* SYNC_STATUS_CPBLTY */ |
1611 |
(1 << 5) | /* BLOCK_INTERRUPT_CPBLTY */ |
1612 |
(1 << 4) | /* LAST_FRAME_INTERRUPT_CPBLTY */ |
1613 |
(1 << 3) | /* FRAME_INTERRUPT_CPBLTY */ |
1614 |
(1 << 2) | /* HALF_FRAME_INTERRUPT_CPBLTY */ |
1615 |
(1 << 1) | /* EVENT_DROP_INTERRUPT_CPBLTY */ |
1616 |
(1 << 0); /* TIMEOUT_INTERRUPT_CPBLTY (DMA 3.2 only) */ |
1617 |
break;
|
1618 |
} |
1619 |
} |
1620 |
|
1621 |
struct soc_dma_s *omap_dma_init(target_phys_addr_t base, qemu_irq *irqs,
|
1622 |
MemoryRegion *sysmem, |
1623 |
qemu_irq lcd_irq, struct omap_mpu_state_s *mpu, omap_clk clk,
|
1624 |
enum omap_dma_model model)
|
1625 |
{ |
1626 |
int num_irqs, memsize, i;
|
1627 |
struct omap_dma_s *s = (struct omap_dma_s *) |
1628 |
g_malloc0(sizeof(struct omap_dma_s)); |
1629 |
|
1630 |
if (model <= omap_dma_3_1) {
|
1631 |
num_irqs = 6;
|
1632 |
memsize = 0x800;
|
1633 |
} else {
|
1634 |
num_irqs = 16;
|
1635 |
memsize = 0xc00;
|
1636 |
} |
1637 |
s->model = model; |
1638 |
s->mpu = mpu; |
1639 |
s->clk = clk; |
1640 |
s->lcd_ch.irq = lcd_irq; |
1641 |
s->lcd_ch.mpu = mpu; |
1642 |
|
1643 |
s->dma = soc_dma_init((model <= omap_dma_3_1) ? 9 : 16); |
1644 |
s->dma->freq = omap_clk_getrate(clk); |
1645 |
s->dma->transfer_fn = omap_dma_transfer_generic; |
1646 |
s->dma->setup_fn = omap_dma_transfer_setup; |
1647 |
s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
|
1648 |
s->dma->opaque = s; |
1649 |
|
1650 |
while (num_irqs --)
|
1651 |
s->ch[num_irqs].irq = irqs[num_irqs]; |
1652 |
for (i = 0; i < 3; i ++) { |
1653 |
s->ch[i].sibling = &s->ch[i + 6];
|
1654 |
s->ch[i + 6].sibling = &s->ch[i];
|
1655 |
} |
1656 |
for (i = (model <= omap_dma_3_1) ? 8 : 15; i >= 0; i --) { |
1657 |
s->ch[i].dma = &s->dma->ch[i]; |
1658 |
s->dma->ch[i].opaque = &s->ch[i]; |
1659 |
} |
1660 |
|
1661 |
omap_dma_setcaps(s); |
1662 |
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]); |
1663 |
omap_dma_reset(s->dma); |
1664 |
omap_dma_clk_update(s, 0, 1); |
1665 |
|
1666 |
memory_region_init_io(&s->iomem, &omap_dma_ops, s, "omap.dma", memsize);
|
1667 |
memory_region_add_subregion(sysmem, base, &s->iomem); |
1668 |
|
1669 |
mpu->drq = s->dma->drq; |
1670 |
|
1671 |
return s->dma;
|
1672 |
} |
1673 |
|
1674 |
static void omap_dma_interrupts_4_update(struct omap_dma_s *s) |
1675 |
{ |
1676 |
struct omap_dma_channel_s *ch = s->ch;
|
1677 |
uint32_t bmp, bit; |
1678 |
|
1679 |
for (bmp = 0, bit = 1; bit; ch ++, bit <<= 1) |
1680 |
if (ch->status) {
|
1681 |
bmp |= bit; |
1682 |
ch->cstatus |= ch->status; |
1683 |
ch->status = 0;
|
1684 |
} |
1685 |
if ((s->irqstat[0] |= s->irqen[0] & bmp)) |
1686 |
qemu_irq_raise(s->irq[0]);
|
1687 |
if ((s->irqstat[1] |= s->irqen[1] & bmp)) |
1688 |
qemu_irq_raise(s->irq[1]);
|
1689 |
if ((s->irqstat[2] |= s->irqen[2] & bmp)) |
1690 |
qemu_irq_raise(s->irq[2]);
|
1691 |
if ((s->irqstat[3] |= s->irqen[3] & bmp)) |
1692 |
qemu_irq_raise(s->irq[3]);
|
1693 |
} |
1694 |
|
1695 |
static uint64_t omap_dma4_read(void *opaque, target_phys_addr_t addr, |
1696 |
unsigned size)
|
1697 |
{ |
1698 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1699 |
int irqn = 0, chnum; |
1700 |
struct omap_dma_channel_s *ch;
|
1701 |
|
1702 |
if (size == 1) { |
1703 |
return omap_badwidth_read16(opaque, addr);
|
1704 |
} |
1705 |
|
1706 |
switch (addr) {
|
1707 |
case 0x00: /* DMA4_REVISION */ |
1708 |
return 0x40; |
1709 |
|
1710 |
case 0x14: /* DMA4_IRQSTATUS_L3 */ |
1711 |
irqn ++; |
1712 |
case 0x10: /* DMA4_IRQSTATUS_L2 */ |
1713 |
irqn ++; |
1714 |
case 0x0c: /* DMA4_IRQSTATUS_L1 */ |
1715 |
irqn ++; |
1716 |
case 0x08: /* DMA4_IRQSTATUS_L0 */ |
1717 |
return s->irqstat[irqn];
|
1718 |
|
1719 |
case 0x24: /* DMA4_IRQENABLE_L3 */ |
1720 |
irqn ++; |
1721 |
case 0x20: /* DMA4_IRQENABLE_L2 */ |
1722 |
irqn ++; |
1723 |
case 0x1c: /* DMA4_IRQENABLE_L1 */ |
1724 |
irqn ++; |
1725 |
case 0x18: /* DMA4_IRQENABLE_L0 */ |
1726 |
return s->irqen[irqn];
|
1727 |
|
1728 |
case 0x28: /* DMA4_SYSSTATUS */ |
1729 |
return 1; /* RESETDONE */ |
1730 |
|
1731 |
case 0x2c: /* DMA4_OCP_SYSCONFIG */ |
1732 |
return s->ocp;
|
1733 |
|
1734 |
case 0x64: /* DMA4_CAPS_0 */ |
1735 |
return s->caps[0]; |
1736 |
case 0x6c: /* DMA4_CAPS_2 */ |
1737 |
return s->caps[2]; |
1738 |
case 0x70: /* DMA4_CAPS_3 */ |
1739 |
return s->caps[3]; |
1740 |
case 0x74: /* DMA4_CAPS_4 */ |
1741 |
return s->caps[4]; |
1742 |
|
1743 |
case 0x78: /* DMA4_GCR */ |
1744 |
return s->gcr;
|
1745 |
|
1746 |
case 0x80 ... 0xfff: |
1747 |
addr -= 0x80;
|
1748 |
chnum = addr / 0x60;
|
1749 |
ch = s->ch + chnum; |
1750 |
addr -= chnum * 0x60;
|
1751 |
break;
|
1752 |
|
1753 |
default:
|
1754 |
OMAP_BAD_REG(addr); |
1755 |
return 0; |
1756 |
} |
1757 |
|
1758 |
/* Per-channel registers */
|
1759 |
switch (addr) {
|
1760 |
case 0x00: /* DMA4_CCR */ |
1761 |
return (ch->buf_disable << 25) | |
1762 |
(ch->src_sync << 24) |
|
1763 |
(ch->prefetch << 23) |
|
1764 |
((ch->sync & 0x60) << 14) | |
1765 |
(ch->bs << 18) |
|
1766 |
(ch->transparent_copy << 17) |
|
1767 |
(ch->constant_fill << 16) |
|
1768 |
(ch->mode[1] << 14) | |
1769 |
(ch->mode[0] << 12) | |
1770 |
(0 << 10) | (0 << 9) | |
1771 |
(ch->suspend << 8) |
|
1772 |
(ch->enable << 7) |
|
1773 |
(ch->priority << 6) |
|
1774 |
(ch->fs << 5) | (ch->sync & 0x1f); |
1775 |
|
1776 |
case 0x04: /* DMA4_CLNK_CTRL */ |
1777 |
return (ch->link_enabled << 15) | ch->link_next_ch; |
1778 |
|
1779 |
case 0x08: /* DMA4_CICR */ |
1780 |
return ch->interrupts;
|
1781 |
|
1782 |
case 0x0c: /* DMA4_CSR */ |
1783 |
return ch->cstatus;
|
1784 |
|
1785 |
case 0x10: /* DMA4_CSDP */ |
1786 |
return (ch->endian[0] << 21) | |
1787 |
(ch->endian_lock[0] << 20) | |
1788 |
(ch->endian[1] << 19) | |
1789 |
(ch->endian_lock[1] << 18) | |
1790 |
(ch->write_mode << 16) |
|
1791 |
(ch->burst[1] << 14) | |
1792 |
(ch->pack[1] << 13) | |
1793 |
(ch->translate[1] << 9) | |
1794 |
(ch->burst[0] << 7) | |
1795 |
(ch->pack[0] << 6) | |
1796 |
(ch->translate[0] << 2) | |
1797 |
(ch->data_type >> 1);
|
1798 |
|
1799 |
case 0x14: /* DMA4_CEN */ |
1800 |
return ch->elements;
|
1801 |
|
1802 |
case 0x18: /* DMA4_CFN */ |
1803 |
return ch->frames;
|
1804 |
|
1805 |
case 0x1c: /* DMA4_CSSA */ |
1806 |
return ch->addr[0]; |
1807 |
|
1808 |
case 0x20: /* DMA4_CDSA */ |
1809 |
return ch->addr[1]; |
1810 |
|
1811 |
case 0x24: /* DMA4_CSEI */ |
1812 |
return ch->element_index[0]; |
1813 |
|
1814 |
case 0x28: /* DMA4_CSFI */ |
1815 |
return ch->frame_index[0]; |
1816 |
|
1817 |
case 0x2c: /* DMA4_CDEI */ |
1818 |
return ch->element_index[1]; |
1819 |
|
1820 |
case 0x30: /* DMA4_CDFI */ |
1821 |
return ch->frame_index[1]; |
1822 |
|
1823 |
case 0x34: /* DMA4_CSAC */ |
1824 |
return ch->active_set.src & 0xffff; |
1825 |
|
1826 |
case 0x38: /* DMA4_CDAC */ |
1827 |
return ch->active_set.dest & 0xffff; |
1828 |
|
1829 |
case 0x3c: /* DMA4_CCEN */ |
1830 |
return ch->active_set.element;
|
1831 |
|
1832 |
case 0x40: /* DMA4_CCFN */ |
1833 |
return ch->active_set.frame;
|
1834 |
|
1835 |
case 0x44: /* DMA4_COLOR */ |
1836 |
/* XXX only in sDMA */
|
1837 |
return ch->color;
|
1838 |
|
1839 |
default:
|
1840 |
OMAP_BAD_REG(addr); |
1841 |
return 0; |
1842 |
} |
1843 |
} |
1844 |
|
1845 |
static void omap_dma4_write(void *opaque, target_phys_addr_t addr, |
1846 |
uint64_t value, unsigned size)
|
1847 |
{ |
1848 |
struct omap_dma_s *s = (struct omap_dma_s *) opaque; |
1849 |
int chnum, irqn = 0; |
1850 |
struct omap_dma_channel_s *ch;
|
1851 |
|
1852 |
if (size == 1) { |
1853 |
return omap_badwidth_write16(opaque, addr, value);
|
1854 |
} |
1855 |
|
1856 |
switch (addr) {
|
1857 |
case 0x14: /* DMA4_IRQSTATUS_L3 */ |
1858 |
irqn ++; |
1859 |
case 0x10: /* DMA4_IRQSTATUS_L2 */ |
1860 |
irqn ++; |
1861 |
case 0x0c: /* DMA4_IRQSTATUS_L1 */ |
1862 |
irqn ++; |
1863 |
case 0x08: /* DMA4_IRQSTATUS_L0 */ |
1864 |
s->irqstat[irqn] &= ~value; |
1865 |
if (!s->irqstat[irqn])
|
1866 |
qemu_irq_lower(s->irq[irqn]); |
1867 |
return;
|
1868 |
|
1869 |
case 0x24: /* DMA4_IRQENABLE_L3 */ |
1870 |
irqn ++; |
1871 |
case 0x20: /* DMA4_IRQENABLE_L2 */ |
1872 |
irqn ++; |
1873 |
case 0x1c: /* DMA4_IRQENABLE_L1 */ |
1874 |
irqn ++; |
1875 |
case 0x18: /* DMA4_IRQENABLE_L0 */ |
1876 |
s->irqen[irqn] = value; |
1877 |
return;
|
1878 |
|
1879 |
case 0x2c: /* DMA4_OCP_SYSCONFIG */ |
1880 |
if (value & 2) /* SOFTRESET */ |
1881 |
omap_dma_reset(s->dma); |
1882 |
s->ocp = value & 0x3321;
|
1883 |
if (((s->ocp >> 12) & 3) == 3) /* MIDLEMODE */ |
1884 |
fprintf(stderr, "%s: invalid DMA power mode\n", __FUNCTION__);
|
1885 |
return;
|
1886 |
|
1887 |
case 0x78: /* DMA4_GCR */ |
1888 |
s->gcr = value & 0x00ff00ff;
|
1889 |
if ((value & 0xff) == 0x00) /* MAX_CHANNEL_FIFO_DEPTH */ |
1890 |
fprintf(stderr, "%s: wrong FIFO depth in GCR\n", __FUNCTION__);
|
1891 |
return;
|
1892 |
|
1893 |
case 0x80 ... 0xfff: |
1894 |
addr -= 0x80;
|
1895 |
chnum = addr / 0x60;
|
1896 |
ch = s->ch + chnum; |
1897 |
addr -= chnum * 0x60;
|
1898 |
break;
|
1899 |
|
1900 |
case 0x00: /* DMA4_REVISION */ |
1901 |
case 0x28: /* DMA4_SYSSTATUS */ |
1902 |
case 0x64: /* DMA4_CAPS_0 */ |
1903 |
case 0x6c: /* DMA4_CAPS_2 */ |
1904 |
case 0x70: /* DMA4_CAPS_3 */ |
1905 |
case 0x74: /* DMA4_CAPS_4 */ |
1906 |
OMAP_RO_REG(addr); |
1907 |
return;
|
1908 |
|
1909 |
default:
|
1910 |
OMAP_BAD_REG(addr); |
1911 |
return;
|
1912 |
} |
1913 |
|
1914 |
/* Per-channel registers */
|
1915 |
switch (addr) {
|
1916 |
case 0x00: /* DMA4_CCR */ |
1917 |
ch->buf_disable = (value >> 25) & 1; |
1918 |
ch->src_sync = (value >> 24) & 1; /* XXX For CamDMA must be 1 */ |
1919 |
if (ch->buf_disable && !ch->src_sync)
|
1920 |
fprintf(stderr, "%s: Buffering disable is not allowed in "
|
1921 |
"destination synchronised mode\n", __FUNCTION__);
|
1922 |
ch->prefetch = (value >> 23) & 1; |
1923 |
ch->bs = (value >> 18) & 1; |
1924 |
ch->transparent_copy = (value >> 17) & 1; |
1925 |
ch->constant_fill = (value >> 16) & 1; |
1926 |
ch->mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14); |
1927 |
ch->mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12); |
1928 |
ch->suspend = (value & 0x0100) >> 8; |
1929 |
ch->priority = (value & 0x0040) >> 6; |
1930 |
ch->fs = (value & 0x0020) >> 5; |
1931 |
if (ch->fs && ch->bs && ch->mode[0] && ch->mode[1]) |
1932 |
fprintf(stderr, "%s: For a packet transfer at least one port "
|
1933 |
"must be constant-addressed\n", __FUNCTION__);
|
1934 |
ch->sync = (value & 0x001f) | ((value >> 14) & 0x0060); |
1935 |
/* XXX must be 0x01 for CamDMA */
|
1936 |
|
1937 |
if (value & 0x0080) |
1938 |
omap_dma_enable_channel(s, ch); |
1939 |
else
|
1940 |
omap_dma_disable_channel(s, ch); |
1941 |
|
1942 |
break;
|
1943 |
|
1944 |
case 0x04: /* DMA4_CLNK_CTRL */ |
1945 |
ch->link_enabled = (value >> 15) & 0x1; |
1946 |
ch->link_next_ch = value & 0x1f;
|
1947 |
break;
|
1948 |
|
1949 |
case 0x08: /* DMA4_CICR */ |
1950 |
ch->interrupts = value & 0x09be;
|
1951 |
break;
|
1952 |
|
1953 |
case 0x0c: /* DMA4_CSR */ |
1954 |
ch->cstatus &= ~value; |
1955 |
break;
|
1956 |
|
1957 |
case 0x10: /* DMA4_CSDP */ |
1958 |
ch->endian[0] =(value >> 21) & 1; |
1959 |
ch->endian_lock[0] =(value >> 20) & 1; |
1960 |
ch->endian[1] =(value >> 19) & 1; |
1961 |
ch->endian_lock[1] =(value >> 18) & 1; |
1962 |
if (ch->endian[0] != ch->endian[1]) |
1963 |
fprintf(stderr, "%s: DMA endiannes conversion enable attempt\n",
|
1964 |
__FUNCTION__); |
1965 |
ch->write_mode = (value >> 16) & 3; |
1966 |
ch->burst[1] = (value & 0xc000) >> 14; |
1967 |
ch->pack[1] = (value & 0x2000) >> 13; |
1968 |
ch->translate[1] = (value & 0x1e00) >> 9; |
1969 |
ch->burst[0] = (value & 0x0180) >> 7; |
1970 |
ch->pack[0] = (value & 0x0040) >> 6; |
1971 |
ch->translate[0] = (value & 0x003c) >> 2; |
1972 |
if (ch->translate[0] | ch->translate[1]) |
1973 |
fprintf(stderr, "%s: bad MReqAddressTranslate sideband signal\n",
|
1974 |
__FUNCTION__); |
1975 |
ch->data_type = 1 << (value & 3); |
1976 |
if ((value & 3) == 3) |
1977 |
printf("%s: bad data_type for DMA channel\n", __FUNCTION__);
|
1978 |
break;
|
1979 |
|
1980 |
case 0x14: /* DMA4_CEN */ |
1981 |
ch->set_update = 1;
|
1982 |
ch->elements = value & 0xffffff;
|
1983 |
break;
|
1984 |
|
1985 |
case 0x18: /* DMA4_CFN */ |
1986 |
ch->frames = value & 0xffff;
|
1987 |
ch->set_update = 1;
|
1988 |
break;
|
1989 |
|
1990 |
case 0x1c: /* DMA4_CSSA */ |
1991 |
ch->addr[0] = (target_phys_addr_t) (uint32_t) value;
|
1992 |
ch->set_update = 1;
|
1993 |
break;
|
1994 |
|
1995 |
case 0x20: /* DMA4_CDSA */ |
1996 |
ch->addr[1] = (target_phys_addr_t) (uint32_t) value;
|
1997 |
ch->set_update = 1;
|
1998 |
break;
|
1999 |
|
2000 |
case 0x24: /* DMA4_CSEI */ |
2001 |
ch->element_index[0] = (int16_t) value;
|
2002 |
ch->set_update = 1;
|
2003 |
break;
|
2004 |
|
2005 |
case 0x28: /* DMA4_CSFI */ |
2006 |
ch->frame_index[0] = (int32_t) value;
|
2007 |
ch->set_update = 1;
|
2008 |
break;
|
2009 |
|
2010 |
case 0x2c: /* DMA4_CDEI */ |
2011 |
ch->element_index[1] = (int16_t) value;
|
2012 |
ch->set_update = 1;
|
2013 |
break;
|
2014 |
|
2015 |
case 0x30: /* DMA4_CDFI */ |
2016 |
ch->frame_index[1] = (int32_t) value;
|
2017 |
ch->set_update = 1;
|
2018 |
break;
|
2019 |
|
2020 |
case 0x44: /* DMA4_COLOR */ |
2021 |
/* XXX only in sDMA */
|
2022 |
ch->color = value; |
2023 |
break;
|
2024 |
|
2025 |
case 0x34: /* DMA4_CSAC */ |
2026 |
case 0x38: /* DMA4_CDAC */ |
2027 |
case 0x3c: /* DMA4_CCEN */ |
2028 |
case 0x40: /* DMA4_CCFN */ |
2029 |
OMAP_RO_REG(addr); |
2030 |
break;
|
2031 |
|
2032 |
default:
|
2033 |
OMAP_BAD_REG(addr); |
2034 |
} |
2035 |
} |
2036 |
|
2037 |
static const MemoryRegionOps omap_dma4_ops = { |
2038 |
.read = omap_dma4_read, |
2039 |
.write = omap_dma4_write, |
2040 |
.endianness = DEVICE_NATIVE_ENDIAN, |
2041 |
}; |
2042 |
|
2043 |
struct soc_dma_s *omap_dma4_init(target_phys_addr_t base, qemu_irq *irqs,
|
2044 |
MemoryRegion *sysmem, |
2045 |
struct omap_mpu_state_s *mpu, int fifo, |
2046 |
int chans, omap_clk iclk, omap_clk fclk)
|
2047 |
{ |
2048 |
int i;
|
2049 |
struct omap_dma_s *s = (struct omap_dma_s *) |
2050 |
g_malloc0(sizeof(struct omap_dma_s)); |
2051 |
|
2052 |
s->model = omap_dma_4; |
2053 |
s->chans = chans; |
2054 |
s->mpu = mpu; |
2055 |
s->clk = fclk; |
2056 |
|
2057 |
s->dma = soc_dma_init(s->chans); |
2058 |
s->dma->freq = omap_clk_getrate(fclk); |
2059 |
s->dma->transfer_fn = omap_dma_transfer_generic; |
2060 |
s->dma->setup_fn = omap_dma_transfer_setup; |
2061 |
s->dma->drq = qemu_allocate_irqs(omap_dma_request, s, 64);
|
2062 |
s->dma->opaque = s; |
2063 |
for (i = 0; i < s->chans; i ++) { |
2064 |
s->ch[i].dma = &s->dma->ch[i]; |
2065 |
s->dma->ch[i].opaque = &s->ch[i]; |
2066 |
} |
2067 |
|
2068 |
memcpy(&s->irq, irqs, sizeof(s->irq));
|
2069 |
s->intr_update = omap_dma_interrupts_4_update; |
2070 |
|
2071 |
omap_dma_setcaps(s); |
2072 |
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]); |
2073 |
omap_dma_reset(s->dma); |
2074 |
omap_dma_clk_update(s, 0, !!s->dma->freq);
|
2075 |
|
2076 |
memory_region_init_io(&s->iomem, &omap_dma4_ops, s, "omap.dma4", 0x1000); |
2077 |
memory_region_add_subregion(sysmem, base, &s->iomem); |
2078 |
|
2079 |
mpu->drq = s->dma->drq; |
2080 |
|
2081 |
return s->dma;
|
2082 |
} |
2083 |
|
2084 |
struct omap_dma_lcd_channel_s *omap_dma_get_lcdch(struct soc_dma_s *dma) |
2085 |
{ |
2086 |
struct omap_dma_s *s = dma->opaque;
|
2087 |
|
2088 |
return &s->lcd_ch;
|
2089 |
} |