58  * reboot barker (4 le32 words with the same value). We ack it by
60  * reboot ack barker (4 le32 words with value I2400M_ACK_BARKER) and
437  * Verify the ack data received
442  * @opcode: opcode which generated this ack. For error messages.
443  * @ack: pointer to ack data we received
451 			       struct i2400m_bootrom_header *ack,  in __i2400m_bm_ack_verify()  argument
457 	d_fnstart(8, dev, "(i2400m %p opcode %d ack %p size %zu)\n",  in __i2400m_bm_ack_verify()
458 		  i2400m, opcode, ack, ack_size);  in __i2400m_bm_ack_verify()
459 	if (ack_size < sizeof(*ack)) {  in __i2400m_bm_ack_verify()
463 			opcode, ack_size, sizeof(*ack));  in __i2400m_bm_ack_verify()
466 	result = i2400m_is_boot_barker(i2400m, ack, ack_size);  in __i2400m_bm_ack_verify()
473 		 && memcmp(ack, i2400m_ACK_BARKER, sizeof(*ack)) == 0) {  in __i2400m_bm_ack_verify()
475 		d_printf(3, dev, "boot-mode cmd %d: HW reboot ack barker\n",  in __i2400m_bm_ack_verify()
482 	ack->data_size = le32_to_cpu(ack->data_size);  in __i2400m_bm_ack_verify()
483 	ack->target_addr = le32_to_cpu(ack->target_addr);  in __i2400m_bm_ack_verify()
484 	ack->block_checksum = le32_to_cpu(ack->block_checksum);  in __i2400m_bm_ack_verify()
487 		 opcode, i2400m_brh_get_opcode(ack),  in __i2400m_bm_ack_verify()
488 		 i2400m_brh_get_response(ack),  in __i2400m_bm_ack_verify()
489 		 i2400m_brh_get_use_checksum(ack),  in __i2400m_bm_ack_verify()
490 		 i2400m_brh_get_response_required(ack),  in __i2400m_bm_ack_verify()
491 		 i2400m_brh_get_direct_access(ack));  in __i2400m_bm_ack_verify()
493 	if (i2400m_brh_get_signature(ack) != 0xcbbc) {  in __i2400m_bm_ack_verify()
495 			"0x%04x\n", opcode, i2400m_brh_get_signature(ack));  in __i2400m_bm_ack_verify()
498 	if (opcode != -1 && opcode != i2400m_brh_get_opcode(ack)) {  in __i2400m_bm_ack_verify()
501 			opcode, i2400m_brh_get_opcode(ack), opcode);  in __i2400m_bm_ack_verify()
504 	if (i2400m_brh_get_response(ack) != 0) {	/* failed? */  in __i2400m_bm_ack_verify()
506 			opcode, i2400m_brh_get_response(ack));  in __i2400m_bm_ack_verify()
509 	if (ack_size < ack->data_size + sizeof(*ack)) {  in __i2400m_bm_ack_verify()
513 			(size_t) le32_to_cpu(ack->data_size) + sizeof(*ack));  in __i2400m_bm_ack_verify()
528 	d_fnend(8, dev, "(i2400m %p opcode %d ack %p size %zu) = %d\n",  in __i2400m_bm_ack_verify()
529 		i2400m, opcode, ack, ack_size, (int) result);  in __i2400m_bm_ack_verify()
552  *     If NULL, no command is sent (we just wait for an ack).
557  * @ack: buffer where to place the acknowledgement. If it is a regular
563  * @ack_size: size of @ack, 16 aligned; you need to provide at least
564  *     sizeof(*ack) bytes and then enough to contain the return data
582 		      struct i2400m_bootrom_header *ack, size_t ack_size,  in i2400m_bm_cmd()  argument
589 	d_fnstart(6, dev, "(i2400m %p cmd %p size %zu ack %p size %zu)\n",  in i2400m_bm_cmd()
590 		  i2400m, cmd, cmd_size, ack, ack_size);  in i2400m_bm_cmd()
591 	BUG_ON(ack_size < sizeof(*ack));  in i2400m_bm_cmd()
608 	result = i2400m->bus_bm_wait_for_ack(i2400m, ack, ack_size);  in i2400m_bm_cmd()
610 		dev_err(dev, "boot-mode cmd %d: error waiting for an ack: %d\n",  in i2400m_bm_cmd()
615 	/* verify the ack and read more if necessary [result is the  in i2400m_bm_cmd()
616 	 * final amount of bytes we get in the ack]  */  in i2400m_bm_cmd()
617 	result = __i2400m_bm_ack_verify(i2400m, opcode, ack, ack_size, flags);  in i2400m_bm_cmd()
627 	d_fnend(6, dev, "(i2400m %p cmd %p size %zu ack %p size %zu) = %d\n",  in i2400m_bm_cmd()
628 		i2400m, cmd, cmd_size, ack, ack_size, (int) result);  in i2400m_bm_cmd()
654 	struct i2400m_bootrom_header ack;  in i2400m_download_chunk()  local
669 			    &ack, sizeof(ack), 0);  in i2400m_download_chunk()
708 	struct i2400m_bootrom_header ack;  in i2400m_dnload_bcf()  local
744 				    &ack, sizeof(ack), I2400M_BM_CMD_RAW);  in i2400m_dnload_bcf()
792 	struct i2400m_bootrom_header *cmd, ack;  in i2400m_dnload_finalize()  local
829 				    &ack, sizeof(ack), I2400M_BM_CMD_RAW);  in i2400m_dnload_finalize()
859  * b. (1) echo/ack the reboot sending the reboot barker back and (2)
860  *        getting an ack barker in return
871  * echo/ack reboot barker being sent back, it doesn't understand
875  * known barkers and tries them all until an ACK is
885 	struct i2400m_bootrom_header ack;  in i2400m_bootrom_init()  local
891 	BUILD_BUG_ON(sizeof(ack) != sizeof(i2400m_ACK_BARKER));  in i2400m_bootrom_init()
906 	result = i2400m_bm_cmd(i2400m, NULL, 0, &ack, sizeof(ack),  in i2400m_bootrom_init()
919 		d_printf(4, dev, "device reboot: got ack barker - whatever\n");  in i2400m_bootrom_init()
924 		 * already and expecting an ack; if we don't know what  in i2400m_bootrom_init()
930 				"trying (set) %08x echo/ack\n",  in i2400m_bootrom_init()
938 					       &ack, sizeof(ack),  in i2400m_bootrom_init()
941 				dev_warn(dev, "device boot: got ack barker "  in i2400m_bootrom_init()
942 					 "after sending echo/ack barker "  in i2400m_bootrom_init()
959 		d_dump(1, dev, &ack, result);  in i2400m_bootrom_init()
962 	/* At this point we ack back with 4 REBOOT barkers and expect  in i2400m_bootrom_init()
963 	 * 4 ACK barkers. This is ugly, as we send a raw command --  in i2400m_bootrom_init()
964 	 * hence the cast. _bm_cmd() will catch the reboot ack  in i2400m_bootrom_init()
967 	d_printf(4, dev, "device reboot ack: sending ack [%d # left]\n", count);  in i2400m_bootrom_init()
970 			       &ack, sizeof(ack), I2400M_BM_CMD_RAW);  in i2400m_bootrom_init()
973 		d_printf(4, dev, "reboot ack: got reboot barker - retrying\n");  in i2400m_bootrom_init()
978 		d_printf(4, dev, "reboot ack: got ack barker - good\n");  in i2400m_bootrom_init()
982 			d_printf(4, dev, "reboot ack timedout: retrying\n");  in i2400m_bootrom_init()
985 			dev_err(dev, "reboot ack timedout too long: "  in i2400m_bootrom_init()
994 		dev_err(dev, "device reboot ack: error %d while waiting for "  in i2400m_bootrom_init()
995 			"reboot ack barker - rebooting\n", result);  in i2400m_bootrom_init()
998 	d_printf(2, dev, "device reboot ack: got ack barker - boot done\n");  in i2400m_bootrom_init()
1007 	dev_err(dev, "Timed out waiting for reboot ack\n");  in i2400m_bootrom_init()
1029 		struct i2400m_bootrom_header ack;  in i2400m_read_mac_addr()  member
1039 			       &ack_buf.ack, sizeof(ack_buf), 0);  in i2400m_read_mac_addr()
1117 	struct i2400m_bootrom_header ack;  in i2400m_dnload_init_signed()  local
1127 			    &ack, sizeof(ack), 0);  in i2400m_dnload_init_signed()