static void pmac_ide_transfer_cb(void *opaque, int ret) { DBDMA_io *io = opaque; MACIOIDEState *m = io->opaque; IDEState *s = idebus_active_if(&m->bus); int64_t sector_num; int nsector, remainder; int64_t offset; MACIO_DPRINTF("pmac_ide_transfer_cb\n"); if (ret < 0) { MACIO_DPRINTF("DMA error\n"); m->aiocb = NULL; ide_dma_error(s); io->remainder_len = 0; goto done; } if (!m->dma_active) { MACIO_DPRINTF("waiting for data (%#x - %#x - %x)\n", s->nsector, io->len, s->status); /* data not ready yet, wait for the channel to get restarted */ io->processing = false; return; } if (s->io_buffer_size <= 0) { MACIO_DPRINTF("end of transfer\n"); s->status = READY_STAT | SEEK_STAT; ide_set_irq(s->bus); m->dma_active = false; goto done; } if (io->len == 0) { MACIO_DPRINTF("End of DMA transfer\n"); goto done; } /* Calculate number of sectors */ sector_num = ide_get_sector(s) + (s->io_buffer_index >> 9); offset = (ide_get_sector(s) << 9) + s->io_buffer_index; nsector = (io->len + 0x1ff) >> 9; remainder = io->len & 0x1ff; s->nsector -= nsector; MACIO_DPRINTF("nsector: %d remainder: %x\n", nsector, remainder); MACIO_DPRINTF("sector: %"PRIx64" %x\n", sector_num, nsector); switch (s->dma_cmd) { case IDE_DMA_READ: pmac_dma_read(s->blk, offset, io->len, pmac_ide_transfer_cb, io); break; case IDE_DMA_WRITE: pmac_dma_write(s->blk, sector_num, nsector, pmac_ide_transfer_cb, io); break; case IDE_DMA_TRIM: MACIO_DPRINTF("TRIM command issued!"); break; } return; done: if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) { block_acct_done(blk_get_stats(s->blk), &s->acct); } io->dma_end(opaque); }