242 static int chsc_async(struct chsc_async_area *chsc_area,  in chsc_async()  argument
251 	chsc_area->header.key = PAGE_DEFAULT_KEY >> 4;  in chsc_async()
260 		chsc_area->header.sid = sch->schid;  in chsc_async()
263 		cc = chsc(chsc_area);  in chsc_async()
293 static void chsc_log_command(void *chsc_area)  in chsc_log_command()  argument
297 	snprintf(dbf, sizeof(dbf), "CHSC:%x", ((uint16_t *)chsc_area)[1]);  in chsc_log_command()
299 	CHSC_LOG_HEX(0, chsc_area, 32);  in chsc_log_command()
328 	struct chsc_async_area *chsc_area;  in chsc_ioctl_start()  local
335 	chsc_area = (void *)get_zeroed_page(GFP_DMA | GFP_KERNEL);  in chsc_ioctl_start()
336 	if (!chsc_area)  in chsc_ioctl_start()
344 	if (copy_from_user(chsc_area, user_area, PAGE_SIZE)) {  in chsc_ioctl_start()
348 	chsc_log_command(chsc_area);  in chsc_ioctl_start()
350 	ret = chsc_async(chsc_area, request);  in chsc_ioctl_start()
358 		if (copy_to_user(user_area, chsc_area, PAGE_SIZE))  in chsc_ioctl_start()
364 	free_page((unsigned long)chsc_area);  in chsc_ioctl_start()
432 	struct chsc_sync_area *chsc_area;  in chsc_ioctl_start_sync()  local
435 	chsc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);  in chsc_ioctl_start_sync()
436 	if (!chsc_area)  in chsc_ioctl_start_sync()
438 	if (copy_from_user(chsc_area, user_area, PAGE_SIZE)) {  in chsc_ioctl_start_sync()
442 	if (chsc_area->header.code & 0x4000) {  in chsc_ioctl_start_sync()
446 	chsc_log_command(chsc_area);  in chsc_ioctl_start_sync()
447 	ccode = chsc(chsc_area);  in chsc_ioctl_start_sync()
452 	if (copy_to_user(user_area, chsc_area, PAGE_SIZE))  in chsc_ioctl_start_sync()
457 	free_page((unsigned long)chsc_area);  in chsc_ioctl_start_sync()