*/
#include "ivtv-driver.h"
-#include "ivtv-streams.h"
#include "ivtv-udma.h"
void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size)
int i, offset;
unsigned long flags;
+ if (map_offset < 0)
+ return map_offset;
+
offset = dma_page->offset;
/* Fill SG Array with new values */
unsigned int len = (i == dma_page->page_count - 1) ?
dma_page->tail : PAGE_SIZE - offset;
- dma->SGlist[map_offset].length = len;
- dma->SGlist[map_offset].offset = offset;
if (PageHighMem(dma->map[map_offset])) {
void *src;
if (dma->bouncemap[map_offset] == NULL)
dma->bouncemap[map_offset] = alloc_page(GFP_KERNEL);
if (dma->bouncemap[map_offset] == NULL)
- return -ENOMEM;
+ return -1;
local_irq_save(flags);
src = kmap_atomic(dma->map[map_offset], KM_BOUNCE_READ) + offset;
memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len);
kunmap_atomic(src, KM_BOUNCE_READ);
local_irq_restore(flags);
- dma->SGlist[map_offset].page = dma->bouncemap[map_offset];
+ sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset], len, offset);
}
else {
- dma->SGlist[map_offset].page = dma->map[map_offset];
+ sg_set_page(&dma->SGlist[map_offset], dma->map[map_offset], len, offset);
}
offset = 0;
map_offset++;
}
- return 0;
+ return map_offset;
}
void ivtv_udma_fill_sg_array (struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split) {
dma->page_count = user_dma.page_count;
/* Fill SG List with new values */
- err = ivtv_udma_fill_sg_list(dma, &user_dma, 0);
- if (err) {
+ if (ivtv_udma_fill_sg_list(dma, &user_dma, 0) < 0) {
for (i = 0; i < dma->page_count; i++) {
put_page(dma->map[i]);
}
dma->page_count = 0;
- return err;
+ return -ENOMEM;
}
/* Map SG List */