323 	u32 bytes_to_read, write_distance, curr_grp, curr_gwp,  in saa7164_bus_get()  local
352 	curr_grp = saa7164_readl(bus->m_dwGetReadPos);  in saa7164_bus_get()
354 	if (curr_gwp == curr_grp) {  in saa7164_bus_get()
363 	if (curr_gwp >= curr_grp)  in saa7164_bus_get()
365 		write_distance = curr_gwp - curr_grp;  in saa7164_bus_get()
368 		write_distance = curr_gwp + bus->m_dwSizeGetRing - curr_grp;  in saa7164_bus_get()
377 	new_grp = curr_grp + bytes_to_read;  in saa7164_bus_get()
382 		space_rem = bus->m_dwSizeGetRing - curr_grp;  in saa7164_bus_get()
384 		memcpy_fromio(&msg_tmp, bus->m_pdwGetRing + curr_grp, space_rem);  in saa7164_bus_get()
390 		memcpy_fromio(&msg_tmp, bus->m_pdwGetRing + curr_grp, bytes_to_read);  in saa7164_bus_get()
422 	if (curr_gwp >= curr_grp)  in saa7164_bus_get()
424 		write_distance = curr_gwp - curr_grp;  in saa7164_bus_get()
427 		write_distance = curr_gwp + bus->m_dwSizeGetRing - curr_grp;  in saa7164_bus_get()
437 	new_grp = curr_grp + bytes_to_read;  in saa7164_bus_get()
442 		space_rem = bus->m_dwSizeGetRing - curr_grp;  in saa7164_bus_get()
446 			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, space_rem);  in saa7164_bus_get()
454 			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));  in saa7164_bus_get()
459 			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));  in saa7164_bus_get()
461 				memcpy_fromio(buf, bus->m_pdwGetRing + curr_grp +  in saa7164_bus_get()
472 		memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));  in saa7164_bus_get()
474 			memcpy_fromio(buf, bus->m_pdwGetRing + curr_grp + sizeof(*msg),  in saa7164_bus_get()