From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Some devices w.g. Sony MW600 will stop using certain commands if an
error happen, so the code now just fake a player and once a real
player is registered it takes place of the fake one.
---
audio/avrcp.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 74 insertions(+), 17 deletions(-)
diff --git a/audio/avrcp.c b/audio/avrcp.c
index 5a18cb4..cd57358 100644
--- a/audio/avrcp.c
+++ b/audio/avrcp.c
@@ -493,6 +493,28 @@ void avrcp_player_event(struct avrcp_player *player, uint8_t id, void *data)
return;
}
+static const char *player_get_string(struct avrcp_player *player, uint32_t attr)
+{
+ if (player != NULL)
+ return player->cb->get_string(attr, player->user_data);
+
+ if (attr == AVRCP_MEDIA_ATTRIBUTE_TITLE)
+ return "";
+
+ return NULL;
+}
+
+static uint32_t player_get_uint32(struct avrcp_player *player, uint32_t attr)
+{
+ if (player != NULL)
+ return player->cb->get_uint32(attr, player->user_data);
+
+ if (attr == AVRCP_MEDIA_ATTRIBUTE_DURATION)
+ return UINT32_MAX;
+
+ return 0;
+}
+
static uint16_t player_write_media_attribute(struct avrcp_player *player,
uint32_t id, uint8_t *buf,
uint16_t *pos,
@@ -510,7 +532,7 @@ static uint16_t player_write_media_attribute(struct avrcp_player *player,
case AVRCP_MEDIA_ATTRIBUTE_TRACK:
case AVRCP_MEDIA_ATTRIBUTE_N_TRACKS:
case AVRCP_MEDIA_ATTRIBUTE_DURATION:
- num = player->cb->get_uint32(id, player->user_data);
+ num = player_get_uint32(player, id);
if (num == 0)
break;
@@ -518,7 +540,7 @@ static uint16_t player_write_media_attribute(struct avrcp_player *player,
value = valstr;
break;
default:
- value = player->cb->get_string(id, player->user_data);
+ value = player_get_string(player, id);
}
if (value == NULL) {
@@ -610,6 +632,9 @@ static int player_set_attribute(struct avrcp_player *player,
{
DBG("Change attribute: %u %u", attr, val);
+ if (player == NULL)
+ return -ENOENT;
+
return player->cb->set_setting(attr, val, player->user_data);
}
@@ -619,6 +644,9 @@ static int player_get_attribute(struct avrcp_player *player, uint8_t attr)
DBG("attr %u", attr);
+ if (player == NULL)
+ return -ENOENT;
+
value = player->cb->get_setting(attr, player->user_data);
if (value < 0)
DBG("attr %u not supported by player", attr);
@@ -675,7 +703,7 @@ static uint8_t avrcp_handle_list_player_attributes(struct avrcp *session,
uint16_t len = ntohs(pdu->params_len);
unsigned int i;
- if (len != 0 || player == NULL) {
+ if (len != 0) {
pdu->params_len = htons(1);
pdu->params[0] = AVRCP_STATUS_INVALID_PARAM;
return AVC_CTYPE_REJECTED;
@@ -707,7 +735,7 @@ static uint8_t avrcp_handle_list_player_values(struct avrcp *session,
uint16_t len = ntohs(pdu->params_len);
unsigned int i;
- if (len != 1 || player == NULL)
+ if (len != 1)
goto err;
if (player_get_attribute(player, pdu->params[0]) < 0)
@@ -729,6 +757,15 @@ err:
return AVC_CTYPE_REJECTED;
}
+static GList *player_list_metadata(struct avrcp_player *player)
+{
+ if (player != NULL)
+ return player->cb->list_metadata(player->user_data);
+
+ return g_list_prepend(NULL,
+ GUINT_TO_POINTER(AVRCP_MEDIA_ATTRIBUTE_TITLE));
+}
+
static uint8_t avrcp_handle_get_element_attributes(struct avrcp *session,
struct avrcp_header *pdu,
uint8_t transaction)
@@ -741,7 +778,7 @@ static uint8_t avrcp_handle_get_element_attributes(struct avrcp *session,
GList *attr_ids;
uint16_t offset;
- if (len < 9 || identifier != 0 || player == NULL)
+ if (len < 9 || identifier != 0)
goto err;
nattr = pdu->params[8];
@@ -754,7 +791,7 @@ static uint8_t avrcp_handle_get_element_attributes(struct avrcp *session,
* Return all available information, at least
* title must be returned if there's a track selected.
*/
- attr_ids = player->cb->list_metadata(player->user_data);
+ attr_ids = player_list_metadata(player);
len = g_list_length(attr_ids);
} else {
unsigned int i;
@@ -810,8 +847,7 @@ static uint8_t avrcp_handle_get_current_player_value(struct avrcp *session,
uint8_t *settings;
unsigned int i;
- if (player == NULL || len <= 1 || pdu->params[0] != len - 1 ||
- player == NULL)
+ if (len <= 1 || pdu->params[0] != len - 1)
goto err;
/*
@@ -944,6 +980,14 @@ err:
return AVC_CTYPE_REJECTED;
}
+static uint32_t player_get_position(struct avrcp_player *player)
+{
+ if (player == NULL)
+ return 0;
+
+ return player->cb->get_position(player->user_data);
+}
+
static uint8_t avrcp_handle_get_play_status(struct avrcp *session,
struct avrcp_header *pdu,
uint8_t transaction)
@@ -953,17 +997,14 @@ static uint8_t avrcp_handle_get_play_status(struct avrcp *session,
uint32_t position;
uint32_t duration;
- if (len != 0 || player == NULL) {
+ if (len != 0) {
pdu->params_len = htons(1);
pdu->params[0] = AVRCP_STATUS_INVALID_PARAM;
return AVC_CTYPE_REJECTED;
}
- position = player->cb->get_position(player->user_data);
- duration = player->cb->get_uint32(AVRCP_MEDIA_ATTRIBUTE_DURATION,
- player->user_data);
- if (duration == 0)
- duration = UINT32_MAX;
+ position = player_get_position(player);
+ duration = player_get_uint32(player, AVRCP_MEDIA_ATTRIBUTE_DURATION);
position = htonl(position);
duration = htonl(duration);
@@ -977,6 +1018,22 @@ static uint8_t avrcp_handle_get_play_status(struct avrcp *session,
return AVC_CTYPE_STABLE;
}
+static uint64_t player_get_uid(struct avrcp_player *player)
+{
+ if (player == NULL)
+ return UINT64_MAX;
+
+ return player->cb->get_status(player->user_data);
+}
+
+static uint8_t player_get_status(struct avrcp_player *player)
+{
+ if (player == NULL)
+ return AVRCP_PLAY_STATUS_STOPPED;
+
+ return player->cb->get_status(player->user_data);
+}
+
static uint8_t avrcp_handle_register_notification(struct avrcp *session,
struct avrcp_header *pdu,
uint8_t transaction)
@@ -990,18 +1047,18 @@ static uint8_t avrcp_handle_register_notification(struct avrcp *session,
* one is applicable only for EVENT_PLAYBACK_POS_CHANGED. See AVRCP
* 1.3 spec, section 5.4.2.
*/
- if (len != 5 || player == NULL)
+ if (len != 5)
goto err;
switch (pdu->params[0]) {
case AVRCP_EVENT_STATUS_CHANGED:
len = 2;
- pdu->params[1] = player->cb->get_status(player->user_data);
+ pdu->params[1] = player_get_status(player);
break;
case AVRCP_EVENT_TRACK_CHANGED:
len = 9;
- uid = player->cb->get_uid(player->user_data);
+ uid = player_get_uid(player);
memcpy(&pdu->params[1], &uid, sizeof(uint64_t));
break;
--
1.7.11.4
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