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Bluetooth: AICS Client: Fix sonarcloud issues

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Fixes a few bad casts that ignored const
Add a few missing final else statement
Refactored aics_discover_func to be less complex by
moving some parts of it into a new function.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen 2025-05-17 00:05:49 +02:00 • committed by Daniel DeGrasse
commit 314678c48d
1 changed files with 94 additions and 72 deletions
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166
subsys/bluetooth/audio/aics_client.c
View file

@ -32,6 +32,7 @@
#include <zephyr/types.h>
#include "aics_internal.h"
#include "common/bt_str.h"
LOG_MODULE_REGISTER(bt_aics_client, CONFIG_BT_AICS_CLIENT_LOG_LEVEL);
@ -60,8 +61,8 @@ uint8_t aics_client_notify_handler(struct bt_conn *conn, struct bt_gatt_subscrib
{
uint16_t handle = params->value_handle;
struct bt_aics *inst;
struct bt_aics_state *state;
uint8_t *status;
const struct bt_aics_state *state;
const uint8_t *status;
if (conn == NULL) {
return BT_GATT_ITER_CONTINUE;
@ -80,7 +81,7 @@ uint8_t aics_client_notify_handler(struct bt_conn *conn, struct bt_gatt_subscrib
if (handle == inst->cli.state_handle) {
if (length == sizeof(*state)) {
state = (struct bt_aics_state *)data;
state = (const struct bt_aics_state *)data;
LOG_DBG("Inst %p: Gain %d, mute %u, gain_mode %u, counter %u", inst,
state->gain, state->mute, state->gain_mode, state->change_counter);
@ -94,7 +95,7 @@ uint8_t aics_client_notify_handler(struct bt_conn *conn, struct bt_gatt_subscrib
}
} else if (handle == inst->cli.status_handle) {
if (length == sizeof(*status)) {
status = (uint8_t *)data;
status = (const uint8_t *)data;
LOG_DBG("Inst %p: Status %u", inst, *status);
if (inst->cli.cb && inst->cli.cb->status) {
inst->cli.cb->status(inst, 0, *status);
@ -116,6 +117,8 @@ uint8_t aics_client_notify_handler(struct bt_conn *conn, struct bt_gatt_subscrib
if (inst->cli.cb && inst->cli.cb->description) {
inst->cli.cb->description(inst, 0, desc);
}
} else {
LOG_DBG("Receive notification on unexpected handle 0x%04X", handle);
}
return BT_GATT_ITER_CONTINUE;
@ -127,7 +130,7 @@ static uint8_t aics_client_read_state_cb(struct bt_conn *conn, uint8_t err,
{
int cb_err = err;
struct bt_aics *inst = lookup_aics_by_handle(conn, params->single.handle);
struct bt_aics_state *state = (struct bt_aics_state *)data;
const struct bt_aics_state *state = (const struct bt_aics_state *)data;
memset(params, 0, sizeof(*params));
@ -176,7 +179,8 @@ static uint8_t aics_client_read_gain_settings_cb(struct bt_conn *conn, uint8_t e
{
int cb_err = err;
struct bt_aics *inst = lookup_aics_by_handle(conn, params->single.handle);
struct bt_aics_gain_settings *gain_settings = (struct bt_aics_gain_settings *)data;
const struct bt_aics_gain_settings *gain_settings =
(const struct bt_aics_gain_settings *)data;
memset(params, 0, sizeof(*params));
@ -223,7 +227,7 @@ static uint8_t aics_client_read_type_cb(struct bt_conn *conn, uint8_t err,
const void *data, uint16_t length)
{
int cb_err = err;
uint8_t *type = (uint8_t *)data;
const uint8_t *type = (const uint8_t *)data;
struct bt_aics *inst = lookup_aics_by_handle(conn, params->single.handle);
memset(params, 0, sizeof(*params));
@ -268,7 +272,7 @@ static uint8_t aics_client_read_status_cb(struct bt_conn *conn, uint8_t err,
const void *data, uint16_t length)
{
int cb_err = err;
uint8_t *status = (uint8_t *)data;
const uint8_t *status = (const uint8_t *)data;
struct bt_aics *inst = lookup_aics_by_handle(conn, params->single.handle);
memset(params, 0, sizeof(*params));
@ -352,7 +356,7 @@ static uint8_t internal_read_state_cb(struct bt_conn *conn, uint8_t err,
{
int cb_err = err;
struct bt_aics *inst = lookup_aics_by_handle(conn, params->single.handle);
struct bt_aics_state *state = (struct bt_aics_state *)data;
const struct bt_aics_state *state = (const struct bt_aics_state *)data;
memset(params, 0, sizeof(*params));
@ -389,6 +393,9 @@ static uint8_t internal_read_state_cb(struct bt_conn *conn, uint8_t err,
LOG_DBG("Invalid length %u (expected %zu)", length, sizeof(*state));
cb_err = BT_ATT_ERR_UNLIKELY;
}
} else {
/* Since we return BT_GATT_ITER_STOP this should never happen */
__ASSERT(false, "Unexpected NULL data without error");
}
if (cb_err) {
@ -439,6 +446,8 @@ static void aics_client_write_aics_cp_cb(struct bt_conn *conn, uint8_t err,
/* Wait for read callback */
return;
}
} else {
/* Write failed, fallthrough and notify application */
}
atomic_clear_bit(inst->cli.flags, BT_AICS_CLIENT_FLAG_CP_RETRIED);
@ -550,13 +559,74 @@ static bool valid_inst_discovered(struct bt_aics *inst)
inst->cli.desc_handle;
}
static int store_attr_handle_and_subscribe(struct bt_aics_client *client_inst, struct bt_conn *conn,
const struct bt_gatt_chrc *chrc)
{
struct bt_gatt_subscribe_params *sub_params = NULL;
if (bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_STATE) == 0U) {
LOG_DBG("Audio Input state");
client_inst->state_handle = chrc->value_handle;
sub_params = &client_inst->state_sub_params;
} else if (bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_GAIN_SETTINGS) == 0U) {
LOG_DBG("Gain settings");
client_inst->gain_handle = chrc->value_handle;
} else if (bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_INPUT_TYPE) == 0U) {
LOG_DBG("Input type");
client_inst->type_handle = chrc->value_handle;
} else if (bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_INPUT_STATUS) == 0U) {
LOG_DBG("Input status");
client_inst->status_handle = chrc->value_handle;
sub_params = &client_inst->status_sub_params;
} else if (bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_CONTROL) == 0U) {
LOG_DBG("Control point");
client_inst->control_handle = chrc->value_handle;
} else if (bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_DESCRIPTION) == 0U) {
LOG_DBG("Description");
client_inst->desc_handle = chrc->value_handle;
if ((chrc->properties & BT_GATT_CHRC_NOTIFY) != 0U) {
sub_params = &client_inst->desc_sub_params;
}
if ((chrc->properties & BT_GATT_CHRC_WRITE_WITHOUT_RESP) != 0U) {
atomic_set_bit(client_inst->flags, BT_AICS_CLIENT_FLAG_DESC_WRITABLE);
}
} else {
__ASSERT(false, "Unexpected UUID %s discovered", bt_uuid_str(chrc->uuid));
}
if (sub_params != NULL) {
int err;
sub_params->value = BT_GATT_CCC_NOTIFY;
sub_params->value_handle = chrc->value_handle;
/*
* TODO: Don't assume that CCC is at value handle + 1;
* do proper discovery;
*/
sub_params->ccc_handle = chrc->value_handle + 1;
sub_params->notify = aics_client_notify_handler;
atomic_set_bit(sub_params->flags, BT_GATT_SUBSCRIBE_FLAG_VOLATILE);
err = bt_gatt_subscribe(conn, sub_params);
if (err != 0 && err != -EALREADY) {
LOG_ERR("Failed to subscribe: %d", err);
return err;
}
}
return 0;
}
static uint8_t aics_discover_func(struct bt_conn *conn, const struct bt_gatt_attr *attr,
struct bt_gatt_discover_params *params)
{
struct bt_aics_client *client_inst = CONTAINER_OF(params,
struct bt_aics_client,
discover_params);
struct bt_aics_client *client_inst =
CONTAINER_OF(params, struct bt_aics_client, discover_params);
struct bt_aics *inst = CONTAINER_OF(client_inst, struct bt_aics, cli);
const struct bt_gatt_chrc *chrc;
int err;
if (!attr) {
LOG_DBG("Discovery complete for AICS %p", inst);
@ -566,7 +636,7 @@ static uint8_t aics_discover_func(struct bt_conn *conn, const struct bt_gatt_att
atomic_clear_bit(inst->cli.flags, BT_AICS_CLIENT_FLAG_BUSY);
if (inst->cli.cb && inst->cli.cb->discover) {
int err = valid_inst_discovered(inst) ? 0 : -ENOENT;
err = valid_inst_discovered(inst) ? 0 : -ENOENT;
inst->cli.cb->discover(inst, err);
}
@ -576,69 +646,21 @@ static uint8_t aics_discover_func(struct bt_conn *conn, const struct bt_gatt_att
LOG_DBG("[ATTRIBUTE] handle 0x%04X", attr->handle);
if (params->type == BT_GATT_DISCOVER_CHARACTERISTIC) {
struct bt_gatt_subscribe_params *sub_params = NULL;
struct bt_gatt_chrc *chrc;
__ASSERT_NO_MSG(params->type == BT_GATT_DISCOVER_CHARACTERISTIC);
chrc = (struct bt_gatt_chrc *)attr->user_data;
if (inst->cli.start_handle == 0) {
inst->cli.start_handle = chrc->value_handle;
}
inst->cli.end_handle = chrc->value_handle;
chrc = (const struct bt_gatt_chrc *)attr->user_data;
if (inst->cli.start_handle == 0U) { /* if start handle is unset */
inst->cli.start_handle = chrc->value_handle;
}
inst->cli.end_handle = chrc->value_handle;
if (!bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_STATE)) {
LOG_DBG("Audio Input state");
inst->cli.state_handle = chrc->value_handle;
sub_params = &inst->cli.state_sub_params;
} else if (!bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_GAIN_SETTINGS)) {
LOG_DBG("Gain settings");
inst->cli.gain_handle = chrc->value_handle;
} else if (!bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_INPUT_TYPE)) {
LOG_DBG("Input type");
inst->cli.type_handle = chrc->value_handle;
} else if (!bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_INPUT_STATUS)) {
LOG_DBG("Input status");
inst->cli.status_handle = chrc->value_handle;
sub_params = &inst->cli.status_sub_params;
} else if (!bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_CONTROL)) {
LOG_DBG("Control point");
inst->cli.control_handle = chrc->value_handle;
} else if (!bt_uuid_cmp(chrc->uuid, BT_UUID_AICS_DESCRIPTION)) {
LOG_DBG("Description");
inst->cli.desc_handle = chrc->value_handle;
if (chrc->properties & BT_GATT_CHRC_NOTIFY) {
sub_params = &inst->cli.desc_sub_params;
}
if (chrc->properties & BT_GATT_CHRC_WRITE_WITHOUT_RESP) {
atomic_set_bit(inst->cli.flags, BT_AICS_CLIENT_FLAG_DESC_WRITABLE);
}
err = store_attr_handle_and_subscribe(client_inst, conn, chrc);
if (err != 0) {
if (client_inst->cb && client_inst->cb->discover) {
client_inst->cb->discover(inst, err);
}
if (sub_params) {
int err;
sub_params->value = BT_GATT_CCC_NOTIFY;
sub_params->value_handle = chrc->value_handle;
/*
* TODO: Don't assume that CCC is at handle + 2;
* do proper discovery;
*/
sub_params->ccc_handle = attr->handle + 2;
sub_params->notify = aics_client_notify_handler;
atomic_set_bit(sub_params->flags, BT_GATT_SUBSCRIBE_FLAG_VOLATILE);
err = bt_gatt_subscribe(conn, sub_params);
if (err != 0 && err != -EALREADY) {
LOG_ERR("Failed to subscribe: %d", err);
if (inst->cli.cb && inst->cli.cb->discover) {
inst->cli.cb->discover(inst, err);
}
return BT_GATT_ITER_STOP;
}
}
return BT_GATT_ITER_STOP;
}
return BT_GATT_ITER_CONTINUE;