From ce8d3b647b5acc2bec19602d9fac87d3da11ae77 Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Wed, 11 Nov 2015 22:49:45 +0000 Subject: [PATCH] cuda.c: implement dummy IIC access commands These are used by MacOS 9 on boot. Here we return an error except for 4-byte commands which write to the IIC bus in a similar manner to MOL. Signed-off-by: Mark Cave-Ayland Signed-off-by: David Gibson --- hw/misc/macio/cuda.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c index 1a2ab01..b7e9dee 100644 --- a/hw/misc/macio/cuda.c +++ b/hw/misc/macio/cuda.c @@ -529,6 +529,24 @@ static void cuda_receive_packet(CUDAState *s, cuda_send_packet_to_host(s, obuf, 3); qemu_system_reset_request(); break; + case CUDA_COMBINED_FORMAT_IIC: + obuf[0] = ERROR_PACKET; + obuf[1] = 0x5; + obuf[2] = CUDA_PACKET; + obuf[3] = data[0]; + cuda_send_packet_to_host(s, obuf, 4); + break; + case CUDA_GET_SET_IIC: + if (len == 4) { + cuda_send_packet_to_host(s, obuf, 3); + } else { + obuf[0] = ERROR_PACKET; + obuf[1] = 0x2; + obuf[2] = CUDA_PACKET; + obuf[3] = data[0]; + cuda_send_packet_to_host(s, obuf, 4); + } + break; default: break; } -- 2.7.4