2012-09-21 05:22:27

by Joohi RASTOGI

[permalink] [raw]
Subject: [PATCH BlueZ V7 2/5] AVRCP: Rename variables used for control channel

>From 130000e4095a4db119ec760542b2c7be4aed7c1c Mon Sep 17 00:00:00 2001
From: Joohi Rastogi <[email protected]>
Date: Thu, 20 Sep 2012 15:30:01 +0530
Subject: [PATCH BlueZ V7 2/5] Prefix "control" is added to variables used for control
channel. This will improve redability when Browsing channel
is implemented

---
audio/avctp.c | 80 ++++++++++++++++++++++++++++----------------------------
audio/avctp.h | 4 +-
audio/avrcp.c | 55 ++++++++++++++++++++-------------------
3 files changed, 70 insertions(+), 69 deletions(-)

diff --git a/audio/avctp.c b/audio/avctp.c
index 20aed66..36133b3 100644
--- a/audio/avctp.c
+++ b/audio/avctp.c
@@ -119,7 +119,7 @@ struct avctp_state_callback {

struct avctp_server {
bdaddr_t src;
- GIOChannel *io;
+ GIOChannel *control_io;
GSList *sessions;
};

@@ -137,10 +137,10 @@ struct avctp {

int uinput;

- GIOChannel *io;
- guint io_id;
+ GIOChannel *control_io;
+ guint control_io_id;

- uint16_t mtu;
+ uint16_t control_mtu;

uint8_t key_quirks[256];
GSList *handlers;
@@ -148,7 +148,7 @@ struct avctp {

struct avctp_pdu_handler {
uint8_t opcode;
- avctp_pdu_cb cb;
+ avctp_control_pdu_cb cb;
void *user_data;
unsigned int id;
};
@@ -170,7 +170,7 @@ static struct {

static GSList *callbacks = NULL;
static GSList *servers = NULL;
-static GSList *handlers = NULL;
+static GSList *control_handlers = NULL;
static uint8_t id = 0;

static void auth_cb(DBusError *derr, void *user_data);
@@ -327,15 +327,15 @@ static void avctp_disconnected(struct avctp *session)
if (!session)
return;

- if (session->io) {
- g_io_channel_shutdown(session->io, TRUE, NULL);
- g_io_channel_unref(session->io);
- session->io = NULL;
+ if (session->control_io) {
+ g_io_channel_shutdown(session->control_io, TRUE, NULL);
+ g_io_channel_unref(session->control_io);
+ session->control_io = NULL;
}

- if (session->io_id) {
- g_source_remove(session->io_id);
- session->io_id = 0;
+ if (session->control_io_id) {
+ g_source_remove(session->control_io_id);
+ session->control_io_id = 0;

if (session->state == AVCTP_STATE_CONNECTING) {
struct audio_device *dev;
@@ -446,7 +446,7 @@ static gboolean session_cb(GIOChannel *chan, GIOCondition cond,
if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL))
goto failed;

- sock = g_io_channel_unix_get_fd(session->io);
+ sock = g_io_channel_unix_get_fd(session->control_io);

ret = read(sock, buf, sizeof(buf));
if (ret <= 0)
@@ -504,7 +504,7 @@ static gboolean session_cb(GIOChannel *chan, GIOCondition cond,
goto done;
}

- handler = find_handler(handlers, avc->opcode);
+ handler = find_handler(control_handlers, avc->opcode);
if (!handler) {
DBG("handler not found for 0x%02x", avc->opcode);
packet_size += avrcp_handle_vendor_reject(&code, operands);
@@ -640,14 +640,14 @@ static void avctp_connect_cb(GIOChannel *chan, GError *err, gpointer data)

DBG("AVCTP: connected to %s", address);

- if (!session->io)
- session->io = g_io_channel_ref(chan);
+ if (!session->control_io)
+ session->control_io = g_io_channel_ref(chan);

init_uinput(session);

avctp_set_state(session, AVCTP_STATE_CONNECTED);
- session->mtu = imtu;
- session->io_id = g_io_add_watch(chan,
+ session->control_mtu = imtu;
+ session->control_io_id = g_io_add_watch(chan,
G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
(GIOFunc) session_cb, session);
}
@@ -657,9 +657,9 @@ static void auth_cb(DBusError *derr, void *user_data)
struct avctp *session = user_data;
GError *err = NULL;

- if (session->io_id) {
- g_source_remove(session->io_id);
- session->io_id = 0;
+ if (session->control_io_id) {
+ g_source_remove(session->control_io_id);
+ session->control_io_id = 0;
}

if (derr && dbus_error_is_set(derr)) {
@@ -668,7 +668,7 @@ static void auth_cb(DBusError *derr, void *user_data)
return;
}

- if (!bt_io_accept(session->io, avctp_connect_cb, session,
+ if (!bt_io_accept(session->control_io, avctp_connect_cb, session,
NULL, &err)) {
error("bt_io_accept: %s", err->message);
g_error_free(err);
@@ -772,24 +772,24 @@ static void avctp_confirm_cb(GIOChannel *chan, gpointer data)
goto drop;
}

- if (session->io) {
+ if (session->control_io) {
error("Refusing unexpected connect from %s", address);
goto drop;
}

avctp_set_state(session, AVCTP_STATE_CONNECTING);
- session->io = g_io_channel_ref(chan);
+ session->control_io = g_io_channel_ref(chan);

if (audio_device_request_authorization(dev, AVRCP_TARGET_UUID,
auth_cb, session) < 0)
goto drop;

- session->io_id = g_io_add_watch(chan, G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ session->control_io_id = g_io_add_watch(chan, G_IO_ERR | G_IO_HUP | G_IO_NVAL,
session_cb, session);
return;

drop:
- if (!session || !session->io)
+ if (!session || !session->control_io)
g_io_channel_shutdown(chan, TRUE, NULL);
if (session)
avctp_set_state(session, AVCTP_STATE_DISCONNECTED);
@@ -825,8 +825,8 @@ int avctp_register(const bdaddr_t *src, gboolean master)

server = g_new0(struct avctp_server, 1);

- server->io = avctp_server_socket(src, master);
- if (!server->io) {
+ server->control_io = avctp_server_socket(src, master);
+ if (!server->control_io) {
g_free(server);
return -1;
}
@@ -863,8 +863,8 @@ void avctp_unregister(const bdaddr_t *src)

servers = g_slist_remove(servers, server);

- g_io_channel_shutdown(server->io, TRUE, NULL);
- g_io_channel_unref(server->io);
+ g_io_channel_shutdown(server->control_io, TRUE, NULL);
+ g_io_channel_unref(server->control_io);
g_free(server);

if (servers)
@@ -911,7 +911,7 @@ int avctp_send_passthrough(struct avctp *session, uint8_t op)
operands[0] = op & 0x7f;
operands[1] = 0;

- sk = g_io_channel_unix_get_fd(session->io);
+ sk = g_io_channel_unix_get_fd(session->control_io);

if (write(sk, buf, sizeof(buf)) < 0)
return -errno;
@@ -940,7 +940,7 @@ static int avctp_send(struct avctp *session, uint8_t transaction, uint8_t cr,
if (session->state != AVCTP_STATE_CONNECTED)
return -ENOTCONN;

- sk = g_io_channel_unix_get_fd(session->io);
+ sk = g_io_channel_unix_get_fd(session->control_io);

memset(buf, 0, sizeof(buf));

@@ -1035,13 +1035,13 @@ gboolean avctp_remove_state_cb(unsigned int id)
return FALSE;
}

-unsigned int avctp_register_pdu_handler(uint8_t opcode, avctp_pdu_cb cb,
+unsigned int avctp_register_pdu_handler(uint8_t opcode, avctp_control_pdu_cb cb,
void *user_data)
{
struct avctp_pdu_handler *handler;
static unsigned int id = 0;

- handler = find_handler(handlers, opcode);
+ handler = find_handler(control_handlers, opcode);
if (handler)
return 0;

@@ -1051,7 +1051,7 @@ unsigned int avctp_register_pdu_handler(uint8_t opcode, avctp_pdu_cb cb,
handler->user_data = user_data;
handler->id = ++id;

- handlers = g_slist_append(handlers, handler);
+ control_handlers = g_slist_append(control_handlers, handler);

return handler->id;
}
@@ -1060,11 +1060,11 @@ gboolean avctp_unregister_pdu_handler(unsigned int id)
{
GSList *l;

- for (l = handlers; l != NULL; l = l->next) {
+ for (l = control_handlers; l != NULL; l = l->next) {
struct avctp_pdu_handler *handler = l->data;

if (handler->id == id) {
- handlers = g_slist_remove(handlers, handler);
+ control_handlers = g_slist_remove(control_handlers, handler);
g_free(handler);
return TRUE;
}
@@ -1100,14 +1100,14 @@ struct avctp *avctp_connect(const bdaddr_t *src, const bdaddr_t *dst)
return NULL;
}

- session->io = io;
+ session->control_io = io;

return session;
}

void avctp_disconnect(struct avctp *session)
{
- if (!session->io)
+ if (!session->control_io)
return;

avctp_set_state(session, AVCTP_STATE_DISCONNECTED);
diff --git a/audio/avctp.h b/audio/avctp.h
index 9d19b5d..53919de 100755
--- a/audio/avctp.h
+++ b/audio/avctp.h
@@ -75,7 +75,7 @@ typedef void (*avctp_state_cb) (struct audio_device *dev,
avctp_state_t new_state,
void *user_data);

-typedef size_t (*avctp_pdu_cb) (struct avctp *session, uint8_t transaction,
+typedef size_t (*avctp_control_pdu_cb) (struct avctp *session, uint8_t transaction,
uint8_t *code, uint8_t *subunit,
uint8_t *operands, size_t operand_count,
void *user_data);
@@ -93,7 +93,7 @@ struct avctp *avctp_connect(const bdaddr_t *src, const bdaddr_t *dst);
struct avctp *avctp_get(const bdaddr_t *src, const bdaddr_t *dst);
void avctp_disconnect(struct avctp *session);

-unsigned int avctp_register_pdu_handler(uint8_t opcode, avctp_pdu_cb cb,
+unsigned int avctp_register_pdu_handler(uint8_t opcode, avctp_control_pdu_cb cb,
void *user_data);
gboolean avctp_unregister_pdu_handler(unsigned int id);

diff --git a/audio/avrcp.c b/audio/avrcp.c
index 206d8fa..8259183 100755
--- a/audio/avrcp.c
+++ b/audio/avrcp.c
@@ -164,7 +164,7 @@ struct avrcp_player {
struct avctp *session;
struct audio_device *dev;

- unsigned int handler;
+ unsigned int control_handler;
uint16_t registered_events;
uint8_t transaction_events[AVRCP_EVENT_LAST + 1];
struct pending_pdu *pending_pdu;
@@ -257,8 +257,9 @@ static sdp_record_t *avrcp_tg_record(void)
sdp_list_t *svclass_id, *pfseq, *apseq, *root, *apseq_browsing;
uuid_t root_uuid, l2cap, avctp, avrtg;
sdp_profile_desc_t profile[1];
- sdp_list_t *aproto, *proto[2];
- sdp_record_t *record;sdp_data_t *psm, *version, *features, *psm_browsing;
+ sdp_list_t *aproto_control, *proto_control[2];
+ sdp_record_t *record;
+ sdp_data_t *psm_control, *version, *features, *psm_browsing;
sdp_list_t *aproto_browsing, *proto_browsing[2] = {0};
uint16_t lp = AVCTP_CONTROL_PSM;
uint16_t lp_browsing = AVCTP_BROWSING_PSM;
@@ -285,19 +286,19 @@ static sdp_record_t *avrcp_tg_record(void)

/* Protocol Descriptor List */
sdp_uuid16_create(&l2cap, L2CAP_UUID);
- proto[0] = sdp_list_append(0, &l2cap);
- psm = sdp_data_alloc(SDP_UINT16, &lp);
- proto[0] = sdp_list_append(proto[0], psm);
- apseq = sdp_list_append(0, proto[0]);
+ proto_control[0] = sdp_list_append(0, &l2cap);
+ psm_control = sdp_data_alloc(SDP_UINT16, &lp);
+ proto_control[0] = sdp_list_append(proto_control[0], psm_control);
+ apseq = sdp_list_append(apseq, proto_control[1]);

sdp_uuid16_create(&avctp, AVCTP_UUID);
- proto[1] = sdp_list_append(0, &avctp);
+ proto_control[1] = sdp_list_append(0, &avctp);
version = sdp_data_alloc(SDP_UINT16, &avctp_ver);
- proto[1] = sdp_list_append(proto[1], version);
- apseq = sdp_list_append(apseq, proto[1]);
+ proto_control[1] = sdp_list_append(proto_control[1], version);
+ apseq = sdp_list_append(apseq, proto_control[1]);

- aproto = sdp_list_append(0, apseq);
- sdp_set_access_protos(record, aproto);
+ aproto_control = sdp_list_append(0, apseq);
+ sdp_set_access_protos(record, aproto_control);
proto_browsing[0] = sdp_list_append(0, &l2cap);
psm_browsing = sdp_data_alloc(SDP_UINT16, &lp_browsing);
proto_browsing[0] = sdp_list_append(proto_browsing[0], psm_browsing);
@@ -327,12 +328,12 @@ static sdp_record_t *avrcp_tg_record(void)
sdp_list_free(apseq_browsing, 0);
sdp_list_free(aproto_browsing, 0);

- free(psm);
+ free(psm_control);
free(version);
- sdp_list_free(proto[0], 0);
- sdp_list_free(proto[1], 0);
+ sdp_list_free(proto_control[0], 0);
+ sdp_list_free(proto_control[1], 0);
sdp_list_free(apseq, 0);
- sdp_list_free(aproto, 0);
+ sdp_list_free(aproto_control, 0);
sdp_list_free(pfseq, 0);
sdp_list_free(root, 0);
sdp_list_free(svclass_id, 0);
@@ -1041,13 +1042,13 @@ err:
return AVC_CTYPE_REJECTED;
}

-static struct pdu_handler {
+static struct control_pdu_handler {
uint8_t pdu_id;
uint8_t code;
uint8_t (*func) (struct avrcp_player *player,
struct avrcp_header *pdu,
uint8_t transaction);
-} handlers[] = {
+} control_handlers[] = {
{ AVRCP_GET_CAPABILITIES, AVC_CTYPE_STATUS,
avrcp_handle_get_capabilities },
{ AVRCP_LIST_PLAYER_ATTRIBUTES, AVC_CTYPE_STATUS,
@@ -1086,7 +1087,7 @@ static size_t handle_vendordep_pdu(struct avctp *session, uint8_t transaction,
void *user_data)
{
struct avrcp_player *player = user_data;
- struct pdu_handler *handler;
+ struct control_pdu_handler *handler;
struct avrcp_header *pdu = (void *) operands;
uint32_t company_id = get_company_id(pdu->company_id);

@@ -1106,7 +1107,7 @@ static size_t handle_vendordep_pdu(struct avctp *session, uint8_t transaction,
goto err_metadata;
}

- for (handler = handlers; handler; handler++) {
+ for (handler = control_handlers; handler; handler++) {
if (handler->pdu_id == pdu->pdu_id)
break;
}
@@ -1233,9 +1234,9 @@ static void state_changed(struct audio_device *dev, avctp_state_t old_state,
player->dev = NULL;
player->registered_events = 0;

- if (player->handler) {
- avctp_unregister_pdu_handler(player->handler);
- player->handler = 0;
+ if (player->control_handler) {
+ avctp_unregister_pdu_handler(player->control_handler);
+ player->control_handler = 0;
}

break;
@@ -1243,8 +1244,8 @@ static void state_changed(struct audio_device *dev, avctp_state_t old_state,
player->session = avctp_connect(&dev->src, &dev->dst);
player->dev = dev;

- if (!player->handler)
- player->handler = avctp_register_pdu_handler(
+ if (!player->control_handler)
+ player->control_handler = avctp_register_pdu_handler(
AVC_OP_VENDORDEP,
handle_vendordep_pdu,
player);
@@ -1362,8 +1363,8 @@ static void player_destroy(gpointer data)

player_abort_pending_pdu(player);

- if (player->handler)
- avctp_unregister_pdu_handler(player->handler);
+ if (player->control_handler)
+ avctp_unregister_pdu_handler(player->control_handler);

g_free(player);
}
--
1.7.5.4

Regards
Joohi