/**
* @brief Get Camera capabilities
*
* This operation retrieves the list of capabilities of the Camera Module and
* then returns to host.
*
* @param operation Pointer to structure of Greybus operation.
* @return GB_OP_SUCCESS on success, error code on failure.
*/
static uint8_t gb_camera_capabilities(struct gb_operation *operation)
{
struct gb_camera_capabilities_response *response;
const uint8_t *caps;
size_t size;
int ret;
lldbg("gb_camera_capabilities() + \n");
if (info->state < STATE_UNCONFIGURED) {
lldbg("state error %d \n", info->state);
return GB_OP_INVALID;
}
/* Retrieve the capabilities and their size. */
ret = device_camera_capabilities(info->dev, &size, &caps);
if (ret) {
return gb_errno_to_op_result(ret);
}
if (size > GB_MAX_PAYLOAD_SIZE) {
return GB_OP_NO_MEMORY;
}
response = gb_operation_alloc_response(operation, sizeof(*response) + size);
if (!response) {
return GB_OP_NO_MEMORY;
}
memcpy(response->capabilities, caps, size);
lldbg("gb_camera_capabilities() - \n");
return GB_OP_SUCCESS;
}
/**
* @brief Get Camera capabilities
*
* This operation retrieves the list of capabilities of the Camera Module and
* then returns to host.
*
* @param operation Pointer to structure of Greybus operation.
* @return GB_OP_SUCCESS on success, error code on failure.
*/
static uint8_t gb_camera_capabilities(struct gb_operation *operation)
{
struct gb_camera_capabilities_response *response;
uint8_t *capabilities;
uint16_t size;
int ret;
lldbg("gb_camera_capabilities() + \n");
if (info->state < STATE_UNCONFIGURED) {
lldbg("state error %d \n", info->state);
return GB_OP_INVALID;
}
ret = device_camera_get_required_size(info->dev, SIZE_CAPABILITIES, &size);
if (ret) {
return gb_errno_to_op_result(ret);
}
response = gb_operation_alloc_response(operation, sizeof(*response) + size);
if (!response) {
return GB_OP_NO_MEMORY;
}
/* camera module capabilities */
ret = device_camera_capabilities(info->dev, &size, capabilities);
if (ret) {
return gb_errno_to_op_result(ret);
}
response->size = cpu_to_le16(size);
memcpy(response->capabilities, &capabilities, size);
lldbg("gb_camera_capabilities() - \n");
return GB_OP_SUCCESS;
}