[Qemu-devel] [PULL 16/26] cuda: port SET_DEVICE_LIST command to new framework

[David Gibson <david@gibson.dropbear.id.au>]

From: Hervé Poussineau <hpoussin@reactos.org>

Also implement the command, by taking device list mask into account
when polling ADB devices.

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>
---
 hw/input/adb.c         | 18 ++++++++++--------
 hw/misc/macio/cuda.c   | 18 ++++++++++++++++--
 hw/ppc/mac.h           |  1 +
 include/hw/input/adb.h |  2 +-
 4 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/hw/input/adb.c b/hw/input/adb.c
index c384856..f0ad0d4 100644
--- a/hw/input/adb.c
+++ b/hw/input/adb.c
@@ -89,7 +89,7 @@ int adb_request(ADBBusState *s, uint8_t *obuf, const uint8_t *buf, int len)
 }
 
 /* XXX: move that to cuda ? */
-int adb_poll(ADBBusState *s, uint8_t *obuf)
+int adb_poll(ADBBusState *s, uint8_t *obuf, uint16_t poll_mask)
 {
     ADBDevice *d;
     int olen, i;
@@ -100,13 +100,15 @@ int adb_poll(ADBBusState *s, uint8_t *obuf)
         if (s->poll_index >= s->nb_devices)
             s->poll_index = 0;
         d = s->devices[s->poll_index];
-        buf[0] = ADB_READREG | (d->devaddr << 4);
-        olen = adb_request(s, obuf + 1, buf, 1);
-        /* if there is data, we poll again the same device */
-        if (olen > 0) {
-            obuf[0] = buf[0];
-            olen++;
-            break;
+        if ((1 << d->devaddr) & poll_mask) {
+            buf[0] = ADB_READREG | (d->devaddr << 4);
+            olen = adb_request(s, obuf + 1, buf, 1);
+            /* if there is data, we poll again the same device */
+            if (olen > 0) {
+                obuf[0] = buf[0];
+                olen++;
+                break;
+            }
         }
         s->poll_index++;
     }
diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
index 71fd97c..a2e31d0 100644
--- a/hw/misc/macio/cuda.c
+++ b/hw/misc/macio/cuda.c
@@ -523,7 +523,7 @@ static void cuda_adb_poll(void *opaque)
     uint8_t obuf[ADB_MAX_OUT_LEN + 2];
     int olen;
 
-    olen = adb_poll(&s->adb_bus, obuf + 2);
+    olen = adb_poll(&s->adb_bus, obuf + 2, s->adb_poll_mask);
     if (olen > 0) {
         obuf[0] = ADB_PACKET;
         obuf[1] = 0x40; /* polled data */
@@ -590,9 +590,22 @@ static bool cuda_cmd_set_autorate(CUDAState *s,
     return true;
 }
 
+static bool cuda_cmd_set_device_list(CUDAState *s,
+                                     const uint8_t *in_data, int in_len,
+                                     uint8_t *out_data, int *out_len)
+{
+    if (in_len != 2) {
+        return false;
+    }
+
+    s->adb_poll_mask = (((uint16_t)in_data[0]) << 8) | in_data[1];
+    return true;
+}
+
 static const CudaCommand handlers[] = {
     { CUDA_AUTOPOLL, "AUTOPOLL", cuda_cmd_autopoll },
     { CUDA_SET_AUTO_RATE, "SET_AUTO_RATE",  cuda_cmd_set_autorate },
+    { CUDA_SET_DEVICE_LIST, "SET_DEVICE_LIST", cuda_cmd_set_device_list },
 };
 
 static void cuda_receive_packet(CUDAState *s,
@@ -641,7 +654,6 @@ static void cuda_receive_packet(CUDAState *s,
         cuda_send_packet_to_host(s, obuf, 7);
         return;
     case CUDA_FILE_SERVER_FLAG:
-    case CUDA_SET_DEVICE_LIST:
     case CUDA_SET_POWER_MESSAGES:
         cuda_send_packet_to_host(s, obuf, 3);
         return;
@@ -798,6 +810,7 @@ static const VMStateDescription vmstate_cuda = {
         VMSTATE_INT32(data_out_index, CUDAState),
         VMSTATE_UINT8(autopoll, CUDAState),
         VMSTATE_UINT8(autopoll_rate_ms, CUDAState),
+        VMSTATE_UINT16(adb_poll_mask, CUDAState),
         VMSTATE_BUFFER(data_in, CUDAState),
         VMSTATE_BUFFER(data_out, CUDAState),
         VMSTATE_UINT32(tick_offset, CUDAState),
@@ -852,6 +865,7 @@ static void cuda_realizefn(DeviceState *dev, Error **errp)
 
     s->adb_poll_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_adb_poll, s);
     s->autopoll_rate_ms = 20;
+    s->adb_poll_mask = 0xffff;
 }
 
 static void cuda_initfn(Object *obj)
diff --git a/hw/ppc/mac.h b/hw/ppc/mac.h
index 887c8c1..5764b86 100644
--- a/hw/ppc/mac.h
+++ b/hw/ppc/mac.h
@@ -111,6 +111,7 @@ typedef struct CUDAState {
     int data_out_index;
 
     qemu_irq irq;
+    uint16_t adb_poll_mask;
     uint8_t autopoll_rate_ms;
     uint8_t autopoll;
     uint8_t data_in[128];
diff --git a/include/hw/input/adb.h b/include/hw/input/adb.h
index bdfccd4..db51d03 100644
--- a/include/hw/input/adb.h
+++ b/include/hw/input/adb.h
@@ -79,7 +79,7 @@ struct ADBBusState {
 
 int adb_request(ADBBusState *s, uint8_t *buf_out,
                 const uint8_t *buf, int len);
-int adb_poll(ADBBusState *s, uint8_t *buf_out);
+int adb_poll(ADBBusState *s, uint8_t *buf_out, uint16_t poll_mask);
 
 #define TYPE_ADB_KEYBOARD "adb-keyboard"
 #define TYPE_ADB_MOUSE "adb-mouse"
-- 
2.5.0