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Allow Wii U GCA to work without 2nd cable attached

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=== DETAILS

So, the GCA has 2 USB connections; one is the data connection, and the
second is used to drive rumble.

Due to a driver bug, if the second cable wasn't attached, the pads wouldn't
get detected.

I fixed that bug.
This commit is contained in:
gblues 2018-04-18 23:12:45 -07:00
parent 6eebbe4213
commit 53738e4a0d
1 changed files with 24 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
input/common/hid/device_wiiu_gca.c
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@ -23,8 +23,9 @@ static uint8_t activation_packet[] = { 0x13 };
#endif
#define GCA_PORT_INITIALIZING 0x00
#define GCA_PORT_EMPTY 0x04
#define GCA_PORT_CONNECTED 0x14
#define GCA_PORT_POWERED 0x04
#define GCA_PORT_CONNECTED 0x10
typedef struct wiiu_gca_instance {
void *handle;
@ -107,40 +108,41 @@ static void wiiu_gca_handle_packet(void *data, uint8_t *buffer, size_t size)
static void update_pad_state(wiiu_gca_instance_t *instance)
{
int i, port;
unsigned char port_connected;
if(!instance || !instance->online)
return;
joypad_connection_t *pad;
/* process each pad */
//RARCH_LOG_BUFFER(instance->device_state, 37);
for(i = 1; i < 37; i += 9)
{
port = i / 9;
pad = instance->pads[port];
switch(instance->device_state[i])
port_connected = instance->device_state[i] & GCA_PORT_CONNECTED;
if(port_connected)
{
case GCA_PORT_INITIALIZING:
case GCA_PORT_EMPTY:
if(pad != NULL) {
RARCH_LOG("[gca]: Gamepad at port %d disconnected.\n", port+1);
unregister_pad(instance, port);
}
break;
case GCA_PORT_CONNECTED:
if(pad == NULL)
{
RARCH_LOG("[gca]: Gamepad at port %d connected.\n", port+1);
instance->pads[port] = hid_pad_register(instance, &wiiu_gca_pad_connection);
pad = instance->pads[port];
if(pad == NULL)
{
RARCH_LOG("[gca]: Gamepad at port %d connected.\n", port+1);
instance->pads[port] = hid_pad_register(instance, &wiiu_gca_pad_connection);
pad = instance->pads[port];
if(pad == NULL)
{
RARCH_ERR("[gca]: Failed to register pad.\n");
break;
}
RARCH_ERR("[gca]: Failed to register pad.\n");
break;
}
}
pad->iface->packet_handler(pad->data, &instance->device_state[i], 9);
break;
pad->iface->packet_handler(pad->data, &instance->device_state[i], 9);
} else {
if(pad != NULL) {
RARCH_LOG("[gca]: Gamepad at port %d disconnected.\n", port+1);
unregister_pad(instance, port);
}
}
}
}
@ -263,6 +265,7 @@ static int16_t wiiu_gca_get_axis(void *data, unsigned axis)
if(val > 0x1000 || val < -0x1000)
return 0;
// RARCH_LOG("[gca]: reading axis %d: %04x\n", axis, val);
return val;
}