From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
audio/avctp.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++------------
1 file changed, 46 insertions(+), 12 deletions(-)
diff --git a/audio/avctp.c b/audio/avctp.c
index 9a62bc0..c72d2d5 100644
--- a/audio/avctp.c
+++ b/audio/avctp.c
@@ -1114,26 +1114,60 @@ static int avctp_send(struct avctp *session, uint8_t transaction, uint8_t cr,
return err;
}
-int avctp_send_passthrough(struct avctp *session, uint8_t op)
+static int avctp_send_req(struct avctp *session, uint8_t code,
+ uint8_t subunit, uint8_t opcode,
+ uint8_t *operands, size_t operand_count,
+ avctp_rsp_cb func, void *user_data)
{
- uint8_t operands[2];
- int ret;
+ struct avctp_rsp_handler *handler;
+ int err;
- operands[0] = op & 0x7f;
- operands[1] = 0;
+ err = avctp_send(session, id, AVCTP_COMMAND, code, subunit,
+ opcode, operands, operand_count);
+ if (err < 0)
+ return err;
- ret = avctp_send(session, id, AVCTP_COMMAND, AVC_CTYPE_CONTROL,
- AVC_SUBUNIT_PANEL, AVC_OP_PASSTHROUGH,
- operands, sizeof(operands));
- if (ret < 0)
- return ret;
+ handler = g_new0(struct avctp_rsp_handler, 1);
+ handler->id = id;
+ handler->func = func;
+ handler->user_data = user_data;
+
+ session->handlers = g_slist_prepend(session->handlers, handler);
+
+ id++;
+
+ return 0;
+}
+
+static gboolean avctp_passthrough_rsp(struct avctp *session, uint8_t code,
+ uint8_t subunit, uint8_t *operands,
+ size_t operand_count, void *user_data)
+{
+ if (code != AVC_CTYPE_ACCEPTED)
+ return FALSE;
/* Button release */
operands[0] |= 0x80;
- return avctp_send(session, id, AVCTP_COMMAND, AVC_CTYPE_CONTROL,
+ avctp_send(session, id, AVCTP_COMMAND, AVC_CTYPE_CONTROL,
AVC_SUBUNIT_PANEL, AVC_OP_PASSTHROUGH,
- operands, sizeof(operands));
+ operands, sizeof(operand_count));
+
+ return FALSE;
+}
+
+int avctp_send_passthrough(struct avctp *session, uint8_t op)
+{
+ uint8_t operands[2];
+
+ /* Button pressed */
+ operands[0] = op & 0x7f;
+ operands[1] = 0;
+
+ return avctp_send_req(session, AVC_CTYPE_CONTROL,
+ AVC_SUBUNIT_PANEL, AVC_OP_PASSTHROUGH,
+ operands, sizeof(operands),
+ avctp_passthrough_rsp, NULL);
}
int avctp_send_vendordep(struct avctp *session, uint8_t transaction,
--
1.7.11.4
--
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