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authorHervé Poussineau <hpoussin@reactos.org>2016-02-07 21:34:04 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2016-02-17 09:59:30 +1100
commitd20efaeb13c95059f07c9d15c512b2e538142471 (patch)
treebe4c5dc5064f9b36fb2f7859ffc429fac7e80399 /hw
parente49ff266f8ade3f3a21ec48d13ecf4a77b1c8572 (diff)
cuda: add a framework to handle commands
Next commits will port existing CUDA commands to this framework. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw')
-rw-r--r--hw/misc/macio/cuda.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
index 316c1ac8da..8659dc3ea4 100644
--- a/hw/misc/macio/cuda.c
+++ b/hw/misc/macio/cuda.c
@@ -535,13 +535,47 @@ static void cuda_adb_poll(void *opaque)
(get_ticks_per_sec() / CUDA_ADB_POLL_FREQ));
}
+/* description of commands */
+typedef struct CudaCommand {
+ uint8_t command;
+ const char *name;
+ bool (*handler)(CUDAState *s,
+ const uint8_t *in_args, int in_len,
+ uint8_t *out_args, int *out_len);
+} CudaCommand;
+
+static const CudaCommand handlers[] = {
+};
+
static void cuda_receive_packet(CUDAState *s,
const uint8_t *data, int len)
{
uint8_t obuf[16] = { CUDA_PACKET, 0, data[0] };
int autopoll;
+ int i, out_len = 0;
uint32_t ti;
+ for (i = 0; i < ARRAY_SIZE(handlers); i++) {
+ const CudaCommand *desc = &handlers[i];
+ if (desc->command == data[0]) {
+ CUDA_DPRINTF("handling command %s\n", desc->name);
+ out_len = 0;
+ if (desc->handler(s, data + 1, len - 1, obuf + 3, &out_len)) {
+ cuda_send_packet_to_host(s, obuf, 3 + out_len);
+ } else {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "CUDA: %s: wrong parameters %d\n",
+ desc->name, len);
+ obuf[0] = ERROR_PACKET;
+ obuf[1] = 0x5; /* bad parameters */
+ obuf[2] = CUDA_PACKET;
+ obuf[3] = data[0];
+ cuda_send_packet_to_host(s, obuf, 4);
+ }
+ return;
+ }
+ }
+
switch(data[0]) {
case CUDA_AUTOPOLL:
autopoll = (data[1] != 0);