Revision d7585251 hw/pxa2xx_lcd.c
| b/hw/pxa2xx_lcd.c | ||
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| 283 | 283 |
/* Load new Frame Descriptors from DMA */ |
| 284 | 284 |
static void pxa2xx_descriptor_load(struct pxa2xx_lcdc_s *s) |
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{
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struct pxa_frame_descriptor_s *desc[PXA_LCDDMA_CHANS];
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struct pxa_frame_descriptor_s desc;
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target_phys_addr_t descptr; |
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int i; |
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for (i = 0; i < PXA_LCDDMA_CHANS; i ++) {
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desc[i] = 0; |
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s->dma_ch[i].source = 0; |
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if (!s->dma_ch[i].up) |
| ... | ... | |
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descptr = s->dma_ch[i].descriptor; |
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if (!(descptr >= PXA2XX_SDRAM_BASE && descptr + |
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sizeof(*desc[i]) <= PXA2XX_SDRAM_BASE + phys_ram_size))
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sizeof(desc) <= PXA2XX_SDRAM_BASE + phys_ram_size))
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continue; |
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descptr -= PXA2XX_SDRAM_BASE; |
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desc[i] = (struct pxa_frame_descriptor_s *) (phys_ram_base + descptr); |
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s->dma_ch[i].descriptor = desc[i]->fdaddr; |
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s->dma_ch[i].source = desc[i]->fsaddr; |
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s->dma_ch[i].id = desc[i]->fidr; |
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s->dma_ch[i].command = desc[i]->ldcmd; |
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cpu_physical_memory_read(descptr, (void *)&desc, sizeof(desc)); |
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s->dma_ch[i].descriptor = tswap32(desc.fdaddr); |
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s->dma_ch[i].source = tswap32(desc.fsaddr); |
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s->dma_ch[i].id = tswap32(desc.fidr); |
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s->dma_ch[i].command = tswap32(desc.ldcmd); |
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} |
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} |
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