Esempi in C++ (Cpp) per idescsi_output_zeros

Esempio n. 1

static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigned int bcount)
{
	int count;
	char *buf;

	while (bcount) {
		if (pc->sg - (struct scatterlist *) pc->scsi_cmd->request_buffer > pc->scsi_cmd->use_sg) {
			printk (KERN_ERR "ide-scsi: scatter gather table too small, padding with zeros\n");
			idescsi_output_zeros (drive, bcount);
			return;
		}
		count = min(pc->sg->length - pc->b_count, bcount);
		if (PageHighMem(pc->sg->page)) {
			unsigned long flags;

			local_irq_save(flags);
			buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset;
			drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
			kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
			local_irq_restore(flags);
		} else {
			buf = page_address(pc->sg->page) + pc->sg->offset;
			drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
		}
		bcount -= count; pc->b_count += count;
		if (pc->b_count == pc->sg->length) {
			pc->sg++;
			pc->b_count = 0;
		}
	}
}

Esempio n. 2

File: ide-scsi.c Progetto: BackupTheBerlios/tuxap

static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigned int bcount)
{
	int count;
	char *buf;

	while (bcount) {
		if (pc->sg - (struct scatterlist *) pc->scsi_cmd->request_buffer > pc->scsi_cmd->use_sg) {
			printk (KERN_ERR "ide-scsi: scatter gather table too small, padding with zeros\n");
			idescsi_output_zeros (drive, bcount);
			return;
		}
		count = min(pc->sg->length - pc->b_count, bcount);
		buf = page_address(pc->sg->page) + pc->sg->offset;
		atapi_output_bytes (drive, buf + pc->b_count, count);
		bcount -= count; pc->b_count += count;
		if (pc->b_count == pc->sg->length) {
			pc->sg++;
			pc->b_count = 0;
		}
	}
}