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android/avctp: Add parameters to avctp passthrough send

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This allows to use vendor unique commands
This commit is contained in:
Andrei Emeltchenko 2014-03-12 16:40:24 +02:00 committed by Luiz Augusto von Dentz
parent 1701a37e52
commit ebf14feae9
2 changed files with 65 additions and 17 deletions
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74
android/avctp.c
View File

@ -159,6 +159,8 @@ struct avctp_channel {
struct key_pressed {
uint8_t op;
uint8_t *params;
size_t params_len;
guint timer;
};
@ -1168,25 +1170,38 @@ static const char *op2str(uint8_t op)
return "UNKNOWN";
}
static int avctp_passthrough_press(struct avctp *session, uint8_t op)
static int avctp_passthrough_press(struct avctp *session, uint8_t op,
uint8_t *params, size_t params_len)
{
uint8_t operands[2];
uint8_t operands[7];
size_t len;
DBG("%s", op2str(op));
DBG("op 0x%02x %s params_len %zd", op, op2str(op), params_len);
/* Button pressed */
operands[0] = op & 0x7f;
operands[1] = 0;
if (op == AVC_VENDOR_UNIQUE && params &&
params_len == 5) {
memcpy(&operands[2], params, params_len);
len = params_len + 2;
operands[1] = params_len;
} else {
len = 2;
operands[1] = 0;
}
return avctp_send_req(session, AVC_CTYPE_CONTROL,
AVC_SUBUNIT_PANEL, AVC_OP_PASSTHROUGH,
operands, sizeof(operands),
operands, len,
avctp_passthrough_rsp, NULL);
}
static int avctp_passthrough_release(struct avctp *session, uint8_t op)
static int avctp_passthrough_release(struct avctp *session, uint8_t op,
uint8_t *params, size_t params_len)
{
uint8_t operands[2];
uint8_t operands[7];
size_t len;
DBG("%s", op2str(op));
@ -1194,9 +1209,16 @@ static int avctp_passthrough_release(struct avctp *session, uint8_t op)
operands[0] = op | 0x80;
operands[1] = 0;
if (op == AVC_VENDOR_UNIQUE && params &&
params_len > sizeof(operands) - 2) {
memcpy(&operands[2], params, params_len);
len = params_len;
} else
len = 2;
return avctp_send_req(session, AVC_CTYPE_CONTROL,
AVC_SUBUNIT_PANEL, AVC_OP_PASSTHROUGH,
operands, sizeof(operands),
operands, len,
NULL, NULL);
}
@ -1204,15 +1226,18 @@ static gboolean repeat_timeout(gpointer user_data)
{
struct avctp *session = user_data;
avctp_passthrough_release(session, session->key.op);
avctp_passthrough_press(session, session->key.op);
avctp_passthrough_release(session, session->key.op, session->key.params,
session->key.params_len);
avctp_passthrough_press(session, session->key.op, session->key.params,
session->key.params_len);
return TRUE;
}
static void release_pressed(struct avctp *session)
{
avctp_passthrough_release(session, session->key.op);
avctp_passthrough_release(session, session->key.op, session->key.params,
session->key.params_len);
if (session->key.timer > 0)
g_source_remove(session->key.timer);
@ -1220,7 +1245,8 @@ static void release_pressed(struct avctp *session)
session->key.timer = 0;
}
static bool set_pressed(struct avctp *session, uint8_t op)
static bool set_pressed(struct avctp *session, uint8_t op, uint8_t *params,
size_t params_len)
{
if (session->key.timer > 0) {
if (session->key.op == op)
@ -1232,6 +1258,8 @@ static bool set_pressed(struct avctp *session, uint8_t op)
return FALSE;
session->key.op = op;
session->key.params = params;
session->key.params_len = params_len;
session->key.timer = g_timeout_add_seconds(AVC_PRESS_TIMEOUT,
repeat_timeout,
session);
@ -1243,24 +1271,38 @@ static gboolean avctp_passthrough_rsp(struct avctp *session, uint8_t code,
uint8_t subunit, uint8_t *operands,
size_t operand_count, void *user_data)
{
uint8_t *params;
size_t params_len;
DBG("code 0x%02x operand_count %zd", code, operand_count);
if (code != AVC_CTYPE_ACCEPTED)
return FALSE;
if (set_pressed(session, operands[0]))
if (operands[0] == AVC_VENDOR_UNIQUE) {
params = &operands[2];
params_len = operand_count - 2;
} else {
params = NULL;
params_len = 0;
}
if (set_pressed(session, operands[0], params, params_len))
return FALSE;
avctp_passthrough_release(session, operands[0]);
avctp_passthrough_release(session, operands[0], params, params_len);
return FALSE;
}
int avctp_send_passthrough(struct avctp *session, uint8_t op)
int avctp_send_passthrough(struct avctp *session, uint8_t op, uint8_t *params,
size_t params_len)
{
/* Auto release if key pressed */
if (session->key.timer > 0)
release_pressed(session);
return avctp_passthrough_press(session, op);
return avctp_passthrough_press(session, op, params, params_len);
}
int avctp_send_vendordep(struct avctp *session, uint8_t transaction,

8
android/avctp.h
View File

@ -108,6 +108,11 @@
#define AVC_BLUE 0x7c
#define AVC_YELLOW 0x7c
#define AVC_VENDOR_UNIQUE 0x7e
#define AVC_VENDOR_NEXT_GROUP 0x00
#define AVC_VENDOR_PREV_GROUP 0x01
struct avctp;
typedef bool (*avctp_passthrough_cb) (struct avctp *session,
@ -159,7 +164,8 @@ unsigned int avctp_register_browsing_pdu_handler(struct avctp *session,
bool avctp_unregister_browsing_pdu_handler(struct avctp *session,
unsigned int id);
int avctp_send_passthrough(struct avctp *session, uint8_t op);
int avctp_send_passthrough(struct avctp *session, uint8_t op, uint8_t *params,
size_t params_len);
int avctp_send_vendordep(struct avctp *session, uint8_t transaction,
uint8_t code, uint8_t subunit,
uint8_t *operands, size_t operand_count);